44results about How to "Convenient punching work" patented technology

The invention relates to perforating equipment, in particular to iron sheet punching and perforating equipment. A robot is provided to replace human hands for fixing and perforating iron sheets, so that the iron sheet punching and perforating equipment is safe in perforating and high in working efficiency. The iron sheet punching and perforating equipment comprises a base and a support. The support is arranged on the rear side of the top of the base. The iron sheet punching and perforating equipment further comprises a connecting plate, a punching mechanism, clamping mechanisms and a rotatingmechanism. The punching mechanism is arranged on the front side of the support. The connecting plate is arranged on the punching mechanism. The clamping mechanisms are connected between the two sidesof the connecting plate and the top of the base. The rotating mechanism is arranged on the front side of the top of the base and is connected with the front portion of one side of the connecting plate. A cylinder is arranged to punch and perforate an iron sheet; a groove is then formed in a limiting disc to realize control over the iron sheet by a cross rod and an arc-shaped stirring piece; and aratchet rack and a ratchet gear cooperate to realize the intermittent rotating of the iron sheet, and the punching work can be conveniently carried out.

The invention discloses a rock drill air-leg supporting device convenient to adjust an angle. The rock drill air-leg supporting device convenient to adjust the angle includes a rock drill main body, an upper connecting seat, a bottom rotating seat, a middle fixing rod, air-leg main bodies, installation pieces, first connecting shafts, connecting rods, a bottom installing plate, fixing claws and afixing bottom plate; a first fixing rod and a second fixing rod are arranged in the middle of the rock drill main body in a penetrating mode, and the top ends of the second fixing rod and the first fixing rod are correspondingly clamped with the a second limiting plate and a first limiting plate mutually, and the second limiting plate and the first limiting plate are further clamped with the two sides of the upper connecting seat mutually; and the bottom of a winding shaft is wound with a connecting wire, and a limiting block is installed at the top of the connecting wire. During the use, therock drill air-leg supporting device convenient to adjust the angle can not only facilitate the multi-angle adjustment work of the rock drill above the whole device, but also facilitate the angle fixing work after the adjustment work is completed, and the accurate drilling work of the rock drill is ensured.

The invention relates to a punching device, in particular to an efficient hardware sheet punching device and aims at achieving the technical purpose of providing the efficient hardware sheet punching device high in punching efficiency, high in punching speed and high in practicability. To achieve the above technical purpose, the efficient hardware sheet punching device is provided and comprises a left frame, a first belt wheel, a flat belt, a first connecting rod, a third belt wheel, a second belt wheel, a right frame, a second connecting rod, a fourth belt wheel, a stop block and the like. The right side of the top of the base is connected with the right frame. The first connecting rod is connected between the upper portion of the right side of the left frame and the upper portion of the left side of the right frame. The third belt wheel is connected to the middle portion of the first connecting rod. The third belt wheel is connected with a third drill rod. The efficient hardware sheet punching device achieves the effects of the high punching efficiency, the high punching speed and the high practicability, and when punching work needs to be conducted on a hardware sheet, the work efficiency of the whole hardware sheet punching work can be improved by using the device.

The invention discloses motor base inner hole machining equipment, and belongs to the technical field of motor base machining equipment. The motor base inner hole machining equipment comprises a clamping device, four stand columns are symmetrically arranged at the top of the clamping device, a top plate is fixed to the tops of the four stand columns, and vertical plates are symmetrically fixed tothe bottom of the top plate, wherein a first electric push rod is fixed to one side wall of one vertical plate; and the output end of the first electric push rod penetrates through one side wall of the adjacent vertical plate and is fixedly provided with a first connecting plate, and first guide rods are symmetrically arranged below the top plate. According to the motor base inner hole machining equipment, a motor base can be relatively conveniently and rapidly fixed, and front-back movement, up-down movement and left-right movement of a drill bit can be achieved, so that the punching requirement for the motor base can be met, generated dust can be sucked into a box body in the punching process, and the situation that meshes of a stainless steel filter screen plate are blocked can be prevented.

The invention discloses a perforating device for a spinneret plate of a spinning machine. The perforating device comprises a base, a support is vertically fixed to the side wall of the upper end of the base, an air cylinder is vertically fixed to the side wall of the upper end of the support, and an output end of the air cylinder penetrates through the support; a drive motor is fixed to the outputend of the air cylinder, a perforating shaft is vertically connected with the output end of the drive motor, and a supporting column is vertically fixed to the side wall of the upper end of the base;a rotation groove is formed in the side wall of the upper end of the supporting column, a perforating platform is transversely arranged at the upper end of the supporting column, and a connection rodis vertically fixed to the side wall of the lower end of the perforating platform; a rotation shaft is fixed to the lower end of the connection rod and inserted in the rotation groove, and a positioning pin is transversely inserted in the side wall of one side of the supporting column and penetrates through the rotation groove. By the adoption of the perforating device for the spinneret plate ofthe spinning machine, the rotation angle of the perforating platform can be adjusted and fixed, not only can vertical holes be punched, but also inclined holes can be punched, and various perforatingrequirements can be met.

The invention discloses a punching device for colored aluminum sectional material machining and a punching method of the punching device, and relates to the technical field of colored aluminum sectional material machining. The punching device and the punching method aim at solving the problems that an existing punching device for colored aluminum sectional material machining cannot flexibly adjust the size of a drilled hole in the machining process, only one specification of hole site can be formed in an aluminum sectional material through one-time machining, and if a plurality of through holes with different specifications need to be formed in the same sectional material, a drill rod on the punching device needs to be replaced many times, and the process is tedious. A water storage tank is arranged in a clamping table, a bidirectional lead screw guide rail is installed in the water storage tank, L-shaped sliding blocks are installed on the two sides of the upper surface of the bidirectional lead screw guide rail correspondingly, a pneumatic clamping jaw is installed on one sides of each L-shaped sliding block, and a first stepping motor is installed on the other side of each L-shaped sliding block. The output end of each first stepping motor is in transmission connection with the corresponding pneumatic clamping jaw, two clamping arms are installed at the output end of each pneumatic clamping jaw, and a V-shaped groove is formed in the inner side of each clamping arm.

The invention discloses an automatic telescopic tree planting and punching machine. The automatic telescopic tree planting and punching machine comprises a device main body, wherein first air cylinders are arranged at the bottom part of the device main body. The automatic telescopic tree planting and punching machine disclosed by the invention is provided with the first air cylinders and connecting rods, and the connecting rods can stretch and contract through the first air cylinders, so that height adjustment can be carried out on the device main body, and a drill rod is enabled to do punching work well; meanwhile, during punching, a second air cylinder pushes a piston rod to stretch and contract, and the telescopic rod will drive a motor and the drill rod in working will be driven through the motor to stretch and contract together, so that the effect of automatically extending the punching depth by the automatic telescopic tree planting and punching machine can be realized; meanwhile, the device main body can move through rotating discs and pulleys, and the automatic telescopic tree planting and punching machine can be conveniently moved by a user; after the punching is finishedand when trees are planted, a water tank can be used for watering the trees through a hose and a water injector, so that the functionality of the automatic telescopic tree planting and punching machine is increased; during punching at night, an illuminating lamp can be switched on through an illuminating switch, so that illumination can be provided for the punching work.

The invention relates to a punching device, in particular to a stamping type wood composite board punching device. According to the stamping type wood composite board punching device, manual drilling work is not needed. The stamping type wood composite board punching device comprises a bottom plate and a punching mechanism, and a supporting mechanism is arranged at the top of the bottom plate; and the punching mechanism is arranged on the supporting mechanism. Through the arrangement of the supporting mechanism and the punching mechanism, under the cooperation of workers, punching work can be continuously conducted on a composite board; a fixing mechanism is arranged to clamp the composite board during punching work, so that punching work is more convenient; and through cooperation of a feeding mechanism and a pushing mechanism, automatic feeding work of the composite board can be completed, and manpower is further saved.

The invention relates to a punching device, in particular to an efficient hardware sheet punching device and aims at achieving the technical purpose of providing the efficient hardware sheet punching device high in punching efficiency, high in punching speed and high in practicability. To achieve the above technical purpose, the efficient hardware sheet punching device is provided and comprises a left frame, a first belt wheel, a flat belt, a first connecting rod, a third belt wheel, a second belt wheel, a right frame, a second connecting rod, a fourth belt wheel, a stop block and the like. The right side of the top of the base is connected with the right frame. The first connecting rod is connected between the upper portion of the right side of the left frame and the upper portion of the left side of the right frame. The third belt wheel is connected to the middle portion of the first connecting rod. The third belt wheel is connected with a third drill rod. The efficient hardware sheet punching device achieves the effects of the high punching efficiency, the high punching speed and the high practicability, and when punching work needs to be conducted on a hardware sheet, the work efficiency of the whole hardware sheet punching work can be improved by using the device.

The invention relates to the technical field of building construction equipment, in particular to building construction foundation drilling equipment which comprises a drilling driving mechanism, a round hole drill bit mechanism, a square hole forming mechanism, a rack and supporting column mechanisms. The middle of the drilling driving mechanism is connected to the middle of the rack. The lower end of the drilling driving mechanism is fixedly connected with the round hole drill bit mechanism; the drilling driving mechanism is in transmission connection with the square hole forming mechanism;the lower end of the drilling driving mechanism is detachably connected with the square hole forming mechanism; the round hole drill bit mechanism is located on the inner side of the square hole forming mechanism. The four corners of the bottom end of the rack are each fixedly connected with one supporting column mechanism. By means of the building construction foundation drilling equipment, roundhole punching work can be conducted on a foundation, square hole punching work can also be conducted, and different piling requirements are met.

The invention relates to hinge punching equipment, in particular to hinge punching equipment for furniture door installation, and provides the hinge punching equipment which is used for furniture door installation, is convenient in feeding and positioning and is safe. The hinge punching equipment for furniture door installation comprises an installation table used for installing the whole equipment, a first installation frame arranged on one side of the top of the installation table, an air cylinder arranged on the first installation frame, a push rod arranged at the output end of the air cylinder, a drill bit arranged at the bottom of the push rod, a rotating mechanism arranged in the middle of the top of the installation table, and a placing mechanism arranged at the top of the rotating mechanism. Through cooperation of the rotating mechanism and the placing mechanism, when the push rod moves upwards, the rotating mechanism is driven to drive the placing mechanism and the hinge to rotate, when the push rod moves downwards, the rotating mechanism does not drive the placing mechanism and the hinge to rotate, the hinge is punched through the drill rod, and the punching efficiency is improved.

The invention discloses a method for producing hybrid seeds of rice by seedbed seedling raising and field film mulching intensified cultivation. The method comprises the operation steps: selecting a dry field as a seedbed for cultivating seedlings; mulching a film, and transplanting a male parent and a female parent; carrying out field water management, topdressing as well as disease and pest prevention and control; spraying gibberellin on the female parent and the male parent; removing hybrid seeds and retaining pure seeds; and carrying out artificial pollination; and the hybrid seeds of riceare produced in a plastic film or biodegradable film mulching way, a large three-dimensional intensified cultivation way or a conventional-density planting way, wherein the hybrid seeds of rice include sterile parent seeds. By using the method, rice hybrid seed production can be realized, the purity of the propagated seeds is increased by 0.2-0.5%, the yield per mu of the seeds is increased by 8-15%, the growth speeds of the male parent and the female parent are increased under the heat insulation action of a plastic film or a biodegradable film, so that the mature period is earlier, a variety with a long growth period, such as II-32A, can be matured 7-10 days ahead of time, and a variety with a short growth period, such as Wufeng A, can be matured 2-3 days ahead of time, the area of a rice field is reduced, the management expense of the rice field is reduced, the use amount of female parent seeds is reduced, and 1-1.5kg of female parent seeds are saved per mu.

The invention relates to the field of civil construction, and provides a wood board perforating device for civil construction. The device comprises a bottom plate, a supporting seat is mounted at the bottom of the bottom plate, a case is mounted above the bottom plate, connecting tables are mounted on the inner walls of the two sides of the case, supporting plates are mounted at the bottoms of the connecting tables, and a wood board is placed between the supporting plates. Fixing devices are mounted on the connecting tables. An intermittent rotating device is installed on the side wall of the case, a threaded rod is installed on the side portion of the intermittent rotating device, the other end of the threaded rod is connected with a bearing on the inner wall of the case, by additionally arranging a reciprocating punching device, punching work of the wood board is more convenient, and it can be guaranteed that the punching distance is accurate and high in precision by mechanically controlling reciprocating motions. Meanwhile, the intermittent rotating device is additionally arranged to drive the threaded rod to rotate intermittently, so that the reciprocating punching device is driven to move forwards step by step, large-batch punching work is handled, manual operation is reduced, and the punching work is more convenient.

The invention relates to the technical field of smartphone manufacturing machinery, and discloses a drilling auxiliary device adopted in the smartphone manufacturing process. The drilling auxiliary device comprises a shell, a rotating shaft is movably connected in the shell, a supporting disc is fixedly connected to the exterior of the rotating shaft, a rotary disc is fixedly connected to the exterior of the supporting disc, and a fixed disc is fixedly connected to the exterior of the rotary disc. Under the interaction of all the structures of the device, a smartphone supporting frame can be clamped in time after being placed in the device, the punching procedure is more accurate when the smartphone supporting frame stops at a proper position, it is guaranteed that power can be cut off intime when the rotating shaft stalls, an operator is reminded that the rotating shaft already stalls in time, and therefore the effects that the supporting frame can be clamped in the punching process,and power is cut off in time when the rotating shaft stalls are achieved, machining errors caused by deviation of the supporting frame are avoided, the production efficiency is improved, and the device conforms to the design concept of intelligent manufacturing.

The invention provides a convenient to dismount electromechanical integration punching device which comprises a fastening rack, antiskid sleeves, a working plate, a fixed rack, a connecting seat, an air cylinder, a connector, an oil delivery pipe, an oil storage tank, an oil pump, a stamping rod, a distribution box, keys, a support frame structure, a fixed disc structure, a wind tube structure andan illumination box structure, wherein the antiskid sleeves are connected with the lower end of the fastening rack in a sleeving manner; the fixed rack and the fastening rack are welded on the left and right sides of the upper and lower surfaces of the working plate separately; the bolt of the connecting seat is mounted in the longitudinal middle position of the upper surface of the fixed rack; the air cylinder is embedded in the connecting seat; and the connector is integrally arranged at the lower left part and the upper right part of the outer wall of the air cylinder. The convenient to dismount electromechanical integration punching device has the following benefits: through arranging the support frame structure, the to-be-punched material can be conveniently moved front and back during the using process, so that the degree of wear of the to-be-punched material and the labor intensity of a worker are relieved during the using process.

The invention discloses a C-shaped steel punching device for steel structure production, and relates to the technical field of the punching technology of C-shaped steel. In order to solve the problemof the stability of punching, the device includes two fixing frames, two stop plates are arranged on the outer walls of the opposite sides of the fixing frames, a gear punching mechanism is arranged on the outer walls of the opposite sides of the stop plates, a punching head is arranged on the outer wall of the bottom end of the gear punching mechanism, and a heating mechanism is arranged in the punching head. Fixing base plates are arranged on the outer walls of the two sides of the bottoms of the stop plates respectively, connecting plates are arranged on the outer walls of the opposite sides of the bottoms of the fixing frames respectively, a same guide rail is arranged on the outer walls of the opposite sides of the connecting plates separately, an U-shaped frame is arranged on the outer wall of one side of the top of the guide rail, a guide hole is formed in the outer wall of the top of the U-shaped frame, a limit groove is formed in the outer wall, close to the guide hole, of thetop over a sling rail, and a bearing hole is formed in the inner wall of the bottom of the limit groove. The device effectively facilitates the propelling of the C-shaped steel, and guarantees the efficiency of a C-shaped steel punching hole.

The invention discloses a drilling and punching automatic switching technology and device for preventing and controlling gas outburst. The drilling and punching automatic switching device is mounted between a drill bit and a drilling rod with the same diameter as that of the drill bit and composed of a spring (with a fixing rod), a circular table cylinder, a conical plug, jet flow holes, a blocking plate, a connecting rod and the like. The conical plug is fixed inside the device, the specific spring connects the movable circular table cylinder with the fixing rod, and under the influence of the water pressure, the circular table cylinder moves to control water jet flow outlets and pressure. The problems that suitable drill bits are selected for different coal body hardness, and a punchingdrill bit needs to be replaced are solved, and hydraulic drilling under the low water pressure and hydraulic punching operation under the high water pressure can be achieved.

The invention discloses a perforating device for wooden products, and belongs to the field of perforating devices. The perforating device for the wooden products comprises a workbench. A storage tableand a pair of limiting plates are fixedly connected to the upper end of the workbench. The storage table comprises a box. A storage plate is slidably connected to an opening of the box. A threaded sleeve is fixedly connected to the lower end of the storage plate. A threaded rod is connected into the threaded sleeve in a threaded mode. A motor matched with the threaded rod is fixedly connected into the workbench. A directional shaft and a pair of guide rail are fixedly connected between the limiting plates and the side wall of the storage table. A movable base is slidably connected to the directional shaft. A mounting plate is fixedly connected to the upper end of the limiting plate. An electric cylinder is fixedly connected to the mounting plate. The telescopic end of the electric cylinder penetrates through the limiting plates to be fixedly connected with the movable base. A perforating device body is fixedly connected to the upper end of the movable base. By adoption of the perforating device, bidirectional perforation of wood can be achieved conveniently, and a drill bit of the perforating device can be replaced to meet different perforating requirements.

The invention relates to the technical field of hole forming of workpieces, in particular to a flexible cushion block punching device. The flexible cushion block punching device comprises an input conveying table for flexible cushion blocks to be input, and an output conveying table for the flexible cushion blocks to be output after punching. A punching apparatus used for punching the flexible cushion blocks is arranged at the position between the input conveying table and the output conveying table. The punching apparatus comprises a supporting table for supporting the flexible cushion blocks, and tool bits which are located above the supporting table, comprise knife edges facing downwards and can rise, fall and rotate. Vertical through positioning discharge holes matched with the tool bits are formed in the supporting table. The flexible cushion block punching device is high in stability, capable of saving energy, environment-friendly and good in hole forming effect.

The invention relates to a punching device for automobile part machining. The punching device comprises a base, wherein a fixed seat is fixedly connected to the upper portion of the base; the top endof the fixed seat is sleeved with a rotating seat; a first rotating disc is arranged outside the rotating seat; a base plate is fixedly connected to the upper portion of the rotating seat; a baffle isarranged on one side of the upper portion of the base plate; a first bearing seat is connected to one side of the interior of the baffle; a first lead screw is connected into the first bearing seat in an embedded manner; and the other end of the first lead screw penetrates the interior of the baffle. According to the punching device, the fixed seat is arranged on the base, the rotating seat and the first rotating disc are arranged above the fixed seat, the mounting position of a part can be adjusted by rotating the first rotating disc, and the mounting flexibility of the part is improved; andthe height of an operation table can be adjusted through the first lead screw and a lifting rod, punching can be conveniently conducted on parts different in height, a pressing plate can rotate afterclamping the part, punching can be conducted on different positions of the part, operation of workers is facilitated, and the work efficiency is effectively improved.

The invention discloses a punching device which comprises an adapter, a flushing pipe and an outer protection pipe, the axial length of the outer protection pipe is larger than the axial length of an ore bed cutting face in a to-be-flushed drill hole, the ore bed cutting face can be completely shielded, flushing liquid is prevented from entering the position between the outer protection pipe and the ore bed cutting face, and the punching waste liquid is reversely discharged through the annular liquid outlet cavity formed between the outer protection pipe and the flushing pipe, so that the impact of water flow on the cutting surface of the ore bed during punching is effectively avoided, and the collapse of the cutting surface ore bed is avoided. The punching method adopting the punching device comprises the steps that firstly, the punching device is lowered into the to-be-flushed drill hole, the outer protection pipe is made to completely shield the ore bed cutting face in the axial direction of the outer protection pipe, then punching liquid is guided into the to-be-flushed drill hole through the flushing pipe, and the punching waste liquid in the to-be-flushed drill hole flows back to the ground surface through the annular liquid outlet cavity between the outer protection pipe and the flushing pipe, so that the impact of water flow on the cutting surface of an ore bed during punching is effectively avoided.

The invention discloses a crystal ball positioning and perforating device which comprises a frame body, a clamping groove with a rightward opening is formed in the frame body in a front-back penetrating mode, the bottom wall of the frame body communicates with the clamping groove with the rightward opening, a movable cavity is formed in the position, on the lower side of the clamping groove, in the frame body, a supporting spline sleeve is rotationally installed on the wall body between the movable cavity and the clamping groove, and a friction shaft extending up and down is connected into thesupporting spline sleeve through a spline, and is fixedly connected with a friction disc in the clamping groove. The device is easy to use, the positions of the friction disc and a lever are adjustedthrough movement of a crystal ball, and therefore the friction disc can conveniently grind the bottom of the crystal ball, and a drill bit can be conveniently and fixedly matched for perforating work, and movement of the friction disc is controlled through contact between a connecting sliding plate and the lever, so that damage caused by contact between the drill bit and the friction disc is prevented.

The invention discloses a foot tube combined punching machine. The foot tube combined punching machine comprises a rack, wherein a bottom plate and a slide rail are mounted on the top of the rack; thetop of the slide rail is in sliding connection with a slide plate; the tops of the slide plate and the bottom plate are fixedly connected with mounting plates; the end part of each mounting plate isseparately equipped with a first mould and a second mould through bolts; the two sides of the top of the slide plate are equipped with air cylinders; output shafts of the air cylinders are equipped with clamping plates; one end of the top of the slide plate is equipped with a second hydraulic cylinder; a push rod is mounted on the output shaft of the second hydraulic cylinder; and the end part ofthe push rod is positioned at the two sides of the second mould. According to the foot tube combined punching machine disclosed by the invention, the first mould and the second mould are mounted on the mounting plates through the bolts according to the practical needs, so that mould replacement can be completed; and the position of a third hydraulic cylinder is regulated corresponding to a punching mould, so that efficiency of replacing the punching mould is improved, punching work is conveniently performed on different foot tubes, and punching work of foot tubes of different lengths is convenient.

The invention discloses a drilling system of a glass drilling machine. A rack is included. A rectangular hole is formed in the top side of the rack. A plurality of glass conveying rollers are rotationally arranged on the inner side of the rectangular hole and contain to-be-drilled glass. Supporting legs are welded to the four corners of the bottom of the rack. The sides, getting close to one another, of the four supporting legs are fixedly connected with the same bearing plate. The top of the bearing plate is fixedly connected with a first hydraulic cylinder. An output shaft of the first hydraulic cylinder extends into the rectangular hole and is fixedly connected with a first supporting plate. A first rubber pad is fixedly bonded to the top of the first supporting plate, and two stand columns are welded to one side of the top of the rack. The drilling system is reasonable in design and high in practicability, the first supporting plate can bear the to-be-drilled glass, a second rubberpad can effectively clamp the to-be-drilled glass under the action of elastic force of a first spring, position deflection of the to-be-drilled glass in the punching process is avoided, and the punching work can be better conducted on the to-be-drilled glass.

The invention discloses a tunnel construction shock absorption type water-rich sand layer detection perforating device, and relates to the technical field of tunnel perforation. The tunnel construction shock absorption type water-rich sand layer detection perforating device particularly comprises a fixing support, an upper bottom plate and gas pressure rods. The fixing support is welded and connected with the upper bottom plate, the upper bottom plate is mounted at the bottom of the fixing support, a housing is mounted on the upper surface of the upper bottom plate, an air blower is arranged inside the housing, and support blocks are mounted on the surface of the bottom of the upper bottom plate. The tunnel construction shock absorption type water-rich sand layer detection perforating device has the advantages that the tunnel construction shock absorption type water-rich sand layer detection perforating device is provided with rubber blocks, accordingly, abrasion of the surfaces of drilling tools due to direct contact between drilling bits and the drilling tools can be prevented, shock absorption effects can be realized for the drilling tools by the aid of the elasticity of the rubber blocks, shock generated by the drilling tools in work procedures can be reduced, and perforation work can be advantageously carried out by the tunnel construction shock absorption type water-richsand layer detection perforating device; the drilling tools are distributed, accordingly, the perforation work can be facilitated, and the perforation work efficiency of the tunnel construction shockabsorption type water-rich sand layer detection perforating device can be improved.

The invention discloses a punching auxiliary device for carton packaging and processing. The punching auxiliary device comprises a base, a fixing frame, a top plate, a positioning mechanism, a rotating mechanism and a moving mechanism; the fixing frame is fixedly installed at the upper end of the base, a fixing cavity column is fixedly installed in the middle of the upper end of the base, and thetop plate is located at the top end of the fixing cavity column and rotationally connected with the fixing cavity column; and the positioning mechanism is located at the upper end of the base and comprises a first positioning assembly and a second positioning assembly, and the first positioning assembly comprises a third transmission lead screw, a second lead screw nut and a fixing sleeve. According to the punching auxiliary device, by the arrangement of the positioning mechanism, when a carton needs to be punched, firstly, the carton is inversely buckled on the top plate, and a third motor works to drive a rotating shaft to rotate, so that driven bevel gears on the first positioning assembly and the second positioning assembly rotate, an abutting plate at one side of the fixing sleeve canbe used for abutting and fixing the inner wall of the side, needing to be punched, of a carton body, punching work is facilitated, and stability is good.

The invention discloses an electric drill with a rotatable handle. The electric drill with the rotatable handle comprises a machine body, the handle and a handle shell, wherein the machine body is rotatably connected with the handle through a fixed shaft; limiting blocks sleeve two ends of the fixed shaft; first convex blocks are arranged on inner rings of the limiting blocks and are embedded in aclamping groove of the fixed shaft; the limiting blocks can slide on the fixed shaft but cannot rotate; a spring is arranged between the two limiting blocks; and the spring drives the limiting blocksto abut against the handle shell; and second convex blocks are arranged on outer rings of the limiting blocks, a plurality of fixing grooves are formed in the inner wall of the handle shell, the second convex blocks are embedded in the fixing grooves to keep the machine body and the handle fixed, a cavity is formed in the handle shell, a button is installed in the cavity, the button simultaneously abuts against the inner wall of the handle shell and the limiting blocks, and the button can drive the limiting blocks to slide inwards to release the fixation with the handle shell.

The invention discloses bearing machining equipment with a fixed clamping mechanism. The bearing machining equipment comprises a clamping assembly and a shell, wherein supporting assemblies are installed at the bottom of the shell at equal intervals, the two sides of the interior of the shell are fixedly provided with guide plates, the top of the shell is fixedly provided with an installing assembly, an electric cylinder is installed inside the installing assembly in a penetrating manner, a punching assembly is movably installed at the output end of the electric cylinder, the top of the shellis fixedly provided with a clamping assembly, the surface of the shell is fixedly provided with a control button, and the control button is located on one side of a power supply jack. According to thebearing machining equipment, by arranging a series of structures, the equipment can rotate an adjusting disc to drive a clamping sleeve to move in the using process so that workers can conveniently limit bearings with different sizes by utilizing rubber sleeves, chips are guided into the interior of the shell by the aid of a fixing hole formed in the top of the shell, and the chips are led into the interior of the shell by utilizing the guide plates.