49results about How to "Large flip angle" patented technology

The invention relates to a sand beach cleaning vehicle and a cleaning operation method thereof. The sand beach cleaning vehicle comprises a frame, wherein a sand-stirring idler wheel device is mounted on the front part of the frame; a screening conveying device is mounted on the middle part of the frame; a garbage can and a garbage can lifting turning mechanism are mounted on the rear part of the frame; a push shovel is fixed behind the sand-stirring idler wheel device and on the front lower part of the frame; a sand-guiding plate is fixed on the push shovel; the sand-guiding plate is connected with the screening conveying device; a loading bridge with a wheel is mounted on the rear lower part of the frame; a flattening mechanism which is used for flattening a sand beach is mounted on the loading bridge; a dragging device at the front end of the frame is dragged by a hanging mechanism of a tractor; and the hanging mechanism can control the sand-shoveling depth of the push shovel. When the sand beach cleaning vehicle operates on the dry sand beach, an operation mode of deeply cleaning garbage is adopted; when the sand beach cleaning vehicle operates on the wet sand beach, the operation mode of only cleaning surface garbage is adopted; and during the operation process on the dry and wet sand beaches, the sand beach cleaning vehicle is difficult to sink, has a small running resistance, is high in operation efficiency and can flatten the sand beaches.

The invention provides a cooking robot and belongs to the technical field of kitchen utensils. The problem that an existing cooking device is poor in cooking effect and is heated unevenly is solved. The cooking robot comprises a pot body, a casing, a heating device, a mechanical hand and a driving device, wherein the pot body is spherical and is provided with an opening and fixedly connected with a connecting rod; the casing wraps the pot body and makes the opening of the pot body outward, a cooling channel is formed between the pot body and the casing, and the connecting rod penetrates the casing and is installed on the casing. The heating device is installed in the casing and located in the pot body and can heat the pot body. The mechanical hand is located in the pot body and installed on the connecting rod in an inserted mode. The driving device can respectively drive the connecting rod and the mechanical hand to rotate around the axis of the connecting rod. The cooking robot has the advantages of being convenient to operate and good in cooking effect.

The invention relates to a turnover satellite borne antenna locking releasing device which consists of a switchover piece, a rotor shaft, a torsional spring, a pressure plate, a locking lever, a limitcover, a spring cover, a spring, a locknut, a ball pad, a support and a cutter. The invention effectively transforms the impact force applied to the locking lever in cutting to the release power through the limit cover on the pressure plate, and the release power and the torsional force of the torsional spring act together, thereby increasing the separating speed between the pressure plate and the support and increasing the separating reliability. The exposed part of the locking lever under the pressure plate is shorter after the locking lever is cut, the turnover angle of the pressure plateis big, and the pressure plate is kept to be fixed after being in place under the moment action of the torsional spring so as to enable the pressure plate to keep a longer distance from the support, thereby ensuring the rotation reliability of the antenna; meanwhile, the invention has simple structure, therefore facilitating production and manufacture.

The invention relates to a lifting rotary adjusting mechanism for the milling head of an edge milling machine. The lifting rotary adjusting mechanism comprises a milling power head, a circular arc rotary part and a lifting part, wherein an arc-shaped guide rail is arranged on the front side of an arc-shaped guide rail seat; and the milling power head is matched with the arc-shaped guide rail through an arc-shaped guide groove. Compared with the prior art, the lifting rotary adjusting mechanism adopting the structure that a single shaft is taken as a rotating center has the advantages that the contact surface between the guide rail and the guide groove is larger, the stability is enhanced, milling cutter heads with larger specifications can be hung, and better machining precision can be guaranteed; and the overturning angle is large and can be 85 degrees, so that the angle positioning is more accurate. During the overturning process, a milling cutter head is kept in the rotation center all the time, that is, approximately the milling cutter head is kept on the edge of a sheet metal all the time, so that positioning can be fulfilled efficiently.

The invention discloses a lifting and turning-over mechanism of a cleaning vehicle garbage bin, which is fixed on the frame of the cleaning vehicle, and includes a lifting arm, a turning-over seat, a connecting rod, a lifting oil cylinder, a garbage bin and a turning-over oil cylinder, wherein the lifting arm, the turning-over seat, the connecting rod and the frame are hinged to form a plane four-connecting rod mechanism; one end of the cylinder barrel of the lifting oil cylinder is hinged onto the frame, and one end of the piston rod is hinged onto the lifting arm, so as to drive the plane four-connecting rod mechanism to be lifted or lowered; and the turning-over seat, the garbage bin and the turning-over oil cylinder are hinged to form a swinging block mechanism, and the turning-over oil cylinder drives the swinging block to enable the garbage bin to turn over. As lifting and turning-over are performed through two mechanisms respectively, by adopting the control system to realize lifting and turning-over sequentially, not only the garbage scattering during the dumping is avoided, but also the independently-controlled turning-over mechanism enables the turning-over angle to be sufficiently large, so as to dump more completely and cleanly. The invention also discloses a control method of the lifting and turning-over mechanism.

The invention provides an upper-turn and lower-move hydraulic punch type die closing machine. The upper-turn and lower-move hydraulic punch type die closing machine is technologically characterized in that the four corners, corresponding to a lower machine base, of an upper machine base are provided with guide columns; the guide columns are sleeved with the four corners of a sliding machine base; a lifting oil cylinder is connected between the sliding machine base and the upper machine base; reversing oil cylinders are arranged on the sliding machine base; the lower ends of the reversing oil cylinders are hinged to an upper workbench; one edge of the sliding machine base is hinged to the upper workbench through hinges, and the other edge of the sliding machine base is connected to the upper workbench through a clamping shaft; limiting pins and two parallel guide rails are arranged on the lower machine base; a lower workbench with the four corners provided with trundles are arranged on the parallel guide rails; a transmission shaft is arranged between every two corresponding trundles; each transmission shaft is connected with a motor through a chain wheel structure; supporting oil cylinders of the lower workbench are further arranged at the four corners of the lower machine base; the oil cylinders are all connected with an oil tank through oil pipes. By means of the upper-turn and lower-move hydraulic punch type die closing machine, grinding, debugging and maintenance of a newly-developed die are greatly facilitated, and the die closing machine has the characteristics of being simple in structure, ingenious in design, scientific, practical and the like.

The invention discloses an overturning device of a side-tipping type pot body. The overturning device comprises a pot body, a servo motor and a steel rope, wherein bearing rods are fixedly arranged at the two side end surfaces of the pot body; hydraulic piston rods are arranged under the connecting positions of the pot body and the bearing rods; a connecting rod is arranged between the bearing rods; a fixed ring sleeve is fixedly arranged in the middle of the connecting rod; supporting legs are arranged at the inner sides of the bearing rods; reinforcing rods are fixedly arranged in installing holes in the supporting legs; a rotary shaft of the servo motor is fixedly connected with a winding reel; one end of the steel rope is fixed on the fixed ring sleeve; the hydraulic piston rods are connected with a two-position three-way electromagnetic valve and an oil tank by oil pipes; the two-position three-way electromagnetic valve is connected with a hydraulic pump by an oil pipe; a rotary shaft of the hydraulic pump is rotationally connected with the rotary shaft of the motor by a coupler. The overturning device disclosed by the invention has the advantages that the pot body can be overturned by utilizing the lever principle, so that convenient-quick-thorough discharging is realized and the production efficiency is improved.

The invention discloses an integrated cooker smoke deflector structure and an integrated cooker. The integrated cooker smoke deflector structure comprises a smoke deflector assembly and a smoke deflector angle adjusting mechanism; and the smoke deflector assembly has a closed state and an open state, the smoke deflector angle adjusting mechanism comprises a mounting frame, a driving device arranged on the mounting frame and a connecting rod mechanism arranged on the mounting frame, and the connecting rod mechanism is in transmission connection between the smoke deflector assembly and the driving device, so that the smoke deflector assembly is driven by the driving device and is switched between the closed state and the open state. The integrated cooker smoke deflector structure and the integrated cooker aim at solving the problems that in the prior art, the overturning angle of the integrated cooker smoke deflector structure is not enough, the lampblack extraction effect is not ideal,the height of the smoke deflector is low, and the interference risk with cookware is likely to be generated.

The invention provides a reverse modulation device based on a micromirror array structure. The device comprises a receiving means (1), a first photoelectric converter (3), A first codec (4), A cat's eye device (5), a micromirror array (6) and a driver (7), wherein, the receiving device (1) receives the inquiry light and transmits the inquiry light to a first photoelectric converter (3), the firstphotoelectric converter (3) converts the optical signal into an electrical signal, the first codec (4) encodes the electrical signal to generate a time series code, and sends the time series code to the driver (7); The cat's eye device (5) receives the modulated light and converges the modulated light to the micromirror array (6). The driver (7) drives at least one reflective micromirror in the micromirror array (6) to rotate according to a time series code so that the modulated light is reflected back to the original direction. On the other hand, the invention also provides a reverse modulation method based on a micromirror array structure.

The invention discloses a multi-angle mold-closing foaming fixture for an automotive carpet and a use method of the multi-angle mold-closing foaming fixture. The multi-angle mold-closing foaming fixture for the automotive carpet comprises a base, wherein an upper mold base and a lower mold base are arranged on the base; an upper mold plate is arranged in the upper mold base; a lower mold plate is arranged in the lower mold base; an air bag is arranged at the bottom of the lower mold base; upper overturning mechanisms for allowing overturning of the upper mold base and lower overturning mechanisms for allowing overturning of the lower mold base are arranged on the base; lateral overturning mechanisms for allowing overturning of the upper mold plate are arranged on two sides of the upper mold base; lock pins and lock holes in mutual matching are arranged between the end parts of the upper mold base and the lower mold base and are mutually matched when the upper mold plate is in the zero-degree position. The multi-angle mold-closing foaming fixture for the automotive carpet is concise wholly, convenient to maintain, simple to operate, good in overall strength, stable in operation and flexile to rotate, the production efficiency is improved, manual operation is reduced, the overturning angle is large, and with the adoption of a mold-closing raw material filling method, foaming time is shortened, and the production demand of a manufacturer is met.

The invention relates to a foldable all-around drilling mechanism which comprises a base plate, a turning oil cylinder, a turning frame, a slewing bearing, a guide rail and a power head, wherein the folding of the turning frame is controlled through the telescopic effect of a piston rod of the turning oil cylinder; one end of the slewing bearing is fixedly arranged on the turning frame; the otherend of the slewing bearing is connected with the guide rail; and the power head is arranged at the side, opposite to the side connected with the slewing bearing, of the guide rail. The foldable all-around drilling mechanism has the advantages that the structure is reasonable; the foldable all-around drilling mechanism has two states including a transportation state and a work state; the transportation requirements of a coal mine underground narrow roadway can be met; the machine dismounting transportation is avoided; the equipment fault probability caused by the assembly by unprofessional minepersonnel is effectively reduced; the installation and the use are convenient; convenience, high speed and reliability are realized; the construction range is effectively expanded, so that the efficiency is improved; the use effect is good; the stress effect of the power head is better; the abrasion generated by swinging is avoided; and the integral service life of the drilling mechanism is effectively prolonged. Compared with the prior art, the foldable all-around drilling mechanism has good market prospects and development space.

The invention discloses a fixing device for nuclear magnetic resonance examination of children, and relates to the technical field of medical fixing device structures. The fixing device comprises a base plate, wherein two sliding mechanisms are symmetrically mounted on the top surface of the base plate, two upper body fixing frames are rotatably mounted on the top surfaces of the two sliding mechanisms through first rotating shafts, the two upper body fixing frames are matched with each other and form an arc-shaped structure used for limiting the movement of the upper body of a child, and an arm placing plate is mounted on one side of each upper body fixing frame. According to the invention, after the body of the child is bound, a certain activity space is reserved for the hands, game videos are projected through a projector and displayed on a projection plate, and the hands of the child can interact with images on the projection plate, so the child can play motion sensing games so as to distract attention and reduce fear during examination; and the legs of the child are fixed through leg binding belts, so movement caused by hyperexcitation during games can be prevented; and the head is supported by a head supporting mechanism, so a comfort level is increased, and the tension degree of the child is reduced.

The invention discloses a baking connection conveying line body capable of achieving automatic overturning. The baking connection conveying line body comprises a base, two supporting plates fixedly mounted at the top end of the base, upper supporting frames with the right ends rotatably connected with the bottoms of the side walls of the supporting plates, a conveying mechanism arranged between the two upper supporting frames, and a first hoisting mechanism for driving the upper supporting frames to overturn, and the first hoisting mechanism comprises a first hoister, a first guide pulley and a first steel rope; The first steel rope can be wound on a winding drum through the first hoister, so that the first steel rope drives the left end of the upper supporting frames to move towards the upper right portion, and therefore the height of the left end of a conveying mechanism is adjusted, the conveying mechanism can be suitable for baking line discharging ports of different heights, the supporting frames are pulled to turn over through the first steel rope, the overturning angle is large, the application range is widened, the occupied area of equipment can be reduced when the upper supporting frames are overturned to the maximum angle, and the occupied area is saved.

The invention discloses an overturning device of an upper die for a die spotting hydraulic press. The overturning device comprises a die spotting hydraulic press sliding block and a die spotting hydraulic press base, wherein the die spotting hydraulic press sliding block is matched on the die spotting hydraulic press, and is driven to be acted along the vertical direction by a driving mechanism; the overturning device further comprises an overturning plate, an overturning telescopic cylinder, an overturning plate guide rail, wherein the overturning plate is located below the die spotting hydraulic press sliding block, the hinged end of the overturning plate is hinged to one side of the die spotting hydraulic press sliding block, the free end and the other side of the die spotting hydraulicpress sliding block forms the detachable connection, the bottom surface of the overturning plate is used for fixedly installing the upper die of the die spotting hydraulic press, the top surface of the overturning plate is provided with a hanging point, the overturning telescopic cylinder is located in an inner space of the die spotting hydraulic press sliding block, a cylinder body of the overturning telescopic cylinder is hinged to the die spotting hydraulic press sliding block, a hook is arranged at the extension end of the piston rod, the hook opening of the hook faces the horizontal direction to form a hanging fit with the hanging point on the top surface of the overturning plate, the overturning plate guide rail is fixed on the die spotting hydraulic press base, the extension direction of the extending end of the overturning plate guide rail is the same as the hook opening of the hook, and is used for guiding the free end of the overturning plate and forming support for the overturning plate.

The invention discloses an automatic buffering medical board assembly. The automatic buffering medical bed board assembly comprises a bed frame, a back board, a middle bed board, a thigh board and a shank board. A medical bed further comprises a damper, a back board turning driving device comprises a first driving shaft, back board driving arms and a first linear power device, a first driving armand a driven arm are fixed to the first driving shaft, the first linear power device and the damper are hinged between the first driving arm and the bed frame as well as between the driven arm and thebed frame respectively, a buffering force exerting bush is fixed to the first driving shaft and provided with a laying-down buffering poking block and a returning poking block which are spaced circumferentially, the laying-down buffering poking block and the driven arm extrude, touch and compress the damper when the back board is laid down, and the returning poking block and the driven arm extrude and touch to lengthen and return the damper when the back board is lifted and turned. The back board of the medical bed board assembly can be rapidly laid down and has a buffering function, and therefore the automatic buffering medical bed board assembly is higher in adaptability, meanwhile can improve safety, and reduces the risk of finger or palm pinching.

The invention discloses a pull type motor home compartment cover electric turnover device which comprises a motor home, a driving mechanism is fixedly installed in the motor home and comprises a driving motor and a supporting mechanism, the supporting mechanism comprises a first supporting plate, and a supporting spring and a sealing mechanism are fixedly installed on the inner wall of the first supporting plate. The sealing mechanism comprises a compartment cover, and a movable shaft is fixedly installed on one side of the compartment cover. The electric turnover device for the carriage cover of the travel trailer is provided with the trailer, the driving mechanism, the driving motor, the screw rod, the threaded sleeve, the sliding groove, the sliding plate and the mounting plate, the screw rod is driven by the driving motor to rotate, so that the threaded sleeve moves on the sliding groove through the sliding plate, and then the supporting mechanism is conveniently pushed to push the carriage cover to be opened and closed; and then the physical strength of people can be well saved through mechanical driving, convenience is brought to daily use of people, and the daily use requirements of people can be well met.

Truck cab lift system suspension and lock bolt unlocking control cable automatic controller, electric cylinder lifting chain plate (7) and electric cylinder upper base (8) hinged end is in contact with cab (9), suspension control is, unlocking The spring holder (2) is disengaged from the suspension limit plate (28) without contact, the elastic force of the slider compression spring (13) pushes the slider (12) to move to the right to the suspension closed position, and the slider (12) restricts the chain The plate (7) rotates; the lock bolt unlocking control is that the elastic force of the unlocking spring (3) pushes the unlocking spring limit rod (4) up a certain distance, and the unlocking spring limit rod (4) pushes the B end of the long control cable wire (5). ) goes up, the end A (22) of the long control cable wire overcomes the torsional force of the torsion spring (18) of the unlocking hook and pulls the unlocking hook (17) into contact with the unlocking hook limit post (34), and the unlocking hook limit post (34) stops the Hold the elastic force of the unlocking spring (3) to push the unlocking spring limit rod (4) upward, and the lock bolt is unlocked.

The invention belongs to the technical field of electric automatic turning over and in particular relates to a simple asleep body building bed with a 90-degree structured bed board and good automaticturning-over effect. A bed board is arranged on a bedstead. The asleep body building bed is characterized in that a stead head of the bedstead is set as an H-shaped stead head, one longitudinal bar isarranged between two stead head lower bars, three short horizontal bars are arranged in the middle of one side of the longitudinal bar, a short longitudinal bar is arranged at the other ends of the three short horizontal bars, an extended end is arranged at an outer end joint of the short longitudinal bar, an iron plate is arranged below the joint of the extended end and the short horizontal bars, a transmission and electric device is arranged on the iron plate, the bed board is of a 90-degree right angle structure formed by connecting two bed boards, a rotating shaft fixing plate is arrangedin a connecting angle, a rotating shaft is arranged on the rotating shaft fixing plate, the two ends of the rotating shaft are arranged in a bearing bracket of a bearing of the bedstead, a movable connector is arranged below the bed board and is connected with an upper connecting rod head or a push-and-pull rod on the bedstead, a rotating shaft baffle is arranged in a bed board right angle, rightangle excircle bedsides are arranged at the two ends of the bed board, a switch speed controller and a positive inversion switch are arranged on the bed board, a mattress is arranged on the board surface, and a rotation massager or a vibration massager is arranged on the bed board or mattress, so that the simple asleep body building bed with the 90-degree structured bed board and good automatic turning-over effect is formed.

The invention discloses a 360-degree large part turnover device and a working method thereof. The 360-degree large part turnover device is composed of a rotary motor, a belt wheel, a material to be turned over, a turnover rotor, a turnover rotary shaft, supporting side plates and a controller. The number of the supporting side plates is two, and the rotary motor and the controller are arranged on the two sides of the bottom ends of the supporting side plates correspondingly. The belt wheel is connected to the rotary motor and fixedly connected with the supporting side plates. The turnover rotary shaft is arranged at the tops of the supporting side plates and penetrates the supporting side plates. The turnover rotor is arranged on the turnover rotary shaft. The material to be turned over is located in the turnover rotor. The 360-degree large part turnover device is large in turnover angle, stable in structure and easy to operate, the turnover work of parts is achieved conveniently and safely in a labor saving manner, and the defects of bumping, scratching and the like caused during manual operation are effectively avoided. The device achieves multiple purposes, the production efficiency is improved, and the labor intensity of operators is reduced.

The invention relates to a fitness bicycle system simulating a real environment. The fitness bicycle system comprises a base body, an interaction system, a bicycle system, a real environment simulation system, an input device and a computing device, wherein the real environment simulation system comprises a supporting plate and a plurality of parallel mechanism unit bodies, the parallel mechanismunit bodies can provide three-rotation and one-translation freedom degrees, the bicycle system further comprises a driving wheel, a resistance mechanism and a power assisting mechanism, and the fitness bicycle system can simulate various real environments such as flat roads, uphill, downhill, horizontal turning, uphill turning and downhill turning. The fitness bicycle system is advantaged in thatthe fitness bicycle system is compact in structure, easy to control, capable of simulating various road conditions, high in bearing capacity, large in turning angle and capable of enabling sporters toexperience the feeling of outdoor riding very realistically.

The invention belongs to the field of metal powder reduction processing, and particularly relates to a material boat turnover material collection device, in order to solve the problems that a material boat material collection device in the prior art is complicated and large in occupied working space and requires labor to knock and shake out powder adhered to a material boat. The material boat turnover material collection device comprises a seal assembly, material boat support guide slots, guide rails, front material boat positioning devices, rear material boat positioning devices, a boat clamping component, a material collection bin, a negative-pressure dust collector and a powder collection bucket. The material boat turnover material collection device has the advantages that all material collection actions are completed in a totally-closed environment, full-sealed material collection is realized, and dust pollution is avoided effectively; turnover torque is generated by the aid of own gravity of the material boat, turnover of the material boat is realized, a special turnover unit is omitted, the system structure is simplified, and operation space is saved; by impact between the material boat and cross bars, the turnover angle of the material boat is enlarged, a knocking function is realized, and material collection is more thorough.

The invention discloses a vertical-compressing machine for garbage with pressing head capable of being overturned. The vertical-compressing machine for garbage with pressing head capable of being overturned comprises a garbage can, a lifting mechanism and a pressing head mechanism. A garbage-pouring port is formed in the middle of the top of the garbage can. An internal gate is arranged in the portion, located on the side of the garbage-pouring port, of the garbage can. A pushing mechanism is installed in the portion, located on the other side of the garbage-pouring port, of the garbage can. An external gate is arranged on the end, away from the pushing mechanism, of the garbage can. The pressing head mechanism comprises a support, a compressing oil cylinder and the pressing head. A pistonrod of the compressing oil cylinder is fixedly connected with the pressing head. The two sides, at the garbage-pouring port, of the garbage can extend upwards to form two convex portions. Each convexportion is distributed along the length direction of the garbage can. The side, away from the external gate, of each convex portion is hinged with the side, away from the external gate, of the support. Two overturning oil cylinders are installed between the garbage can and the support. A set of locking mechanism is installed between the outer side of each convex portion and one side of the support. According to the vertical-compressing machine for garbage with pressing head capable of being overturned, the installation height of the equipment is lowered; the structural strength when garbage is compressed is guaranteed; and garbage can also be prevented from scattering to the two sides of the garbage can when poured.

The invention discloses a multi-rotor aircraft elevating turnover device and a carrying and elevating device thereof, and belongs to the technical field of aircrafts. According to the multi-rotor aircraft elevating turnover device and the carrying and elevating device thereof, the elevating efficiency is higher, the aircraft finished product elevating and turnover efficiency is improved, and therefore the aircraft finished product truck loading efficiency is improved. The elevating turnover device comprises a rail and a guide part; a rotating assembly and a rotating drive assembly are connected to the rail, a rotating rod is connected to the rotating assembly, a connecting rod is hinged to the end of the rotating rod, a first elevating rod is hinged to the other end of the connecting rod, one end of the first elevating rod is in fit connection with the guide part, the first elevating rod can move on the guide part along the track of the guide part, and a turnover plate is connected to the first elevating rod. The carrying and elevating device comprises a compartment, the elevating turnover device and a containing mechanism; the elevating turnover device is adopted, and the multi-rotor aircraft elevating turnover device and the carrying and elevating device thereof are suitable for storing and transporting multi-rotor aircrafts.

The invention relates to the technical field of tea preparation, in particular to a tea rolling machine and a working method thereof.The tea rolling machine comprises a rolling disc, a rolling barrel, a driving assembly, a supporting assembly, a receiving assembly and a discharging assembly, the rolling disc comprises a disc body and a plug plate, and the rolling barrel comprises a barrel body and a barrel cover; the barrel cover is mounted in the upper end of the barrel body through a lifting mechanism, the rolling discs are arranged to be of a double-layer disc structure, the first-layer disc is provided with ribs and hollow-out strips, the second-layer rolling disc is provided with ribs and rolling balls, the second-layer disc is rotationally switched, whether the ribs are exposed out of the hollow-out strips on the first-layer disc or the rolling balls are exposed out of the hollow-out strips on the second-layer disc is changed, and the rolling effect is improved. The surface structure of the rolling disc is changed, and different friction forces and overturning effects are provided, so that the friction force and overturning requirements of tea leaves in different rolling stages are met, the tea leaves can be prevented from being clustered in the later rolling stage, and the strip forming effect of the tea leaves is improved.

The invention discloses one-way edge folding equipment for a metal plate. The one-way edge folding equipment for the metal plate comprises a rack, a workbench which is arranged on the rack, a lower knife rest which is arranged on the rack, an upper knife rest is installed on the rack in an upward and downward moving mode and can be matched with the lower knife rest to clamp the metal plate placedon the workbench, an upper clamping servo motor assembly which is used for driving the upper knife rest to move upward and downward, a turnover plate which is installed on the rack and can rotate to conduct one-way edge folding on the metal plate clamped by the upper knife rest and the lower knife rest in a matched mode, and an edge folding servo motor assembly which is used for driving the turnover plate to rotate. The rear end of the workbench stretches out of the rack. Hand holding is not needed in the edge folding process, operation is easy and convenient, the labor intensity is reduced, the working efficiency is improved, the working quality of edge folding is guaranteed, the precision of the overturning angle during metal plate edge folding is improved, the metal plate forming angleis more accurate and the product size is more stable.