37results about How to "Accurate angle positioning" patented technology

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 toothholder positioning tool for a cutting head. The toothholder positioning tool for the cutting head is used for providing positioning for the toothholder when the toothholder is connected on a cutting head body of the cutting head. The toothholder positioning tool comprises an installing platform, a curved plate and a positioning structure; the installing platform is used for placing and fixing the cutting head body; the curved plate is installed on the installing platform; and the positioning structure comprises a connection portion connected with the curved plate and a fixing portion used for fixing the toothholder, the connection portion is connected with a positioning portion installed on the curved plate to define a first axis line, an included angle between the fist axis line and the water level is the chamfer of the toothholder, the fixing portion rotates around the first axis line relative to the connection portion to adjust the rotation angle of the toothholder. Compared with the prior art, the toothholder positioning tool can adjust the rotation angle of the toothholder, so that angle positioning of the toothholder is more accurate; in addition, according to the toothholder positioning tool, the angel of the toothholder is positioned by directly adjusting the installing process corner of the toothholder, so that the cutting function angle of cutting teeth is positioned, and positioning is more accurate.

The invention discloses a ceramic tile cutting method for a construction site and particularly relates to the technical field of ceramic tile cutting. The ceramic tile cutting method comprises a basebracket, wherein a cutting bracket is fixedly arranged on one side of the top of the base bracket; a directional sliding rod and a cutting machine are fixedly arranged in the cutting bracket; the cutting machine is in sliding fit with the directional sliding rod; a dicing saw wheel is fixedly arranged at the output end of the cutting machine; a rotary shaft is fixedly arranged on the other side ofthe top of the base bracket; a rotation cutting platform is fixedly arranged at the top of the rotary shaft; and a compressing rack is fixedly arranged at the top of the rotation cutting platform. According to the ceramic tile cutting method, a ceramic tile is placed on the rotation cutting platform, the rotation cutting platform drives the ceramic tile to rotate, and a scale pointer is utilizedto carry out angle position on an angle dial, so that the ceramic tile can be conveniently cut at different angles, angle positioning is precise, and the ceramic tile is cut on the construction site to further improve the working efficiency.

The invention discloses a mechanical transmission submerged arc furnace distributing device. The mechanical transmission submerged arc furnace distributing device comprises a planetary gear motor arranged on a water-cooling center throat pipe, a rotation support arranged on the water-cooling center throat pipe, a rotary sleeve connected with the outer ring of the rotation support, and a water-cooling chute, wherein an output shaft of the planetary gear motor is provided with a pinion, and the planetary gear motor drives the pinion to rotate; the inner ring of the rotation support is close to the water-cooling center throat pipe, a gear on the outer ring of the rotation support is engaged with the pinion, and the pinion can drive the rotation support to rotate through the outer ring; the rotary sleeve is connected with the outer ring of the rotation support, and the pinion of the planetary gear motor rotates the rotation support to drive the rotary sleeve to rotate; and the water-cooling chute is connected with the planetary gear motor through a connection rod of a lead screw elevator, and the planetary gear motor drives the water-cooling chute to swing through the connection rod ofthe lead screw elevator. The mechanical transmission submerged arc furnace distributing device can distribute materials onto different ring faces, automatic feeding of any point in a submerged arc furnace is achieved, materials are distributed more evenly, enlargement of the submerged arc furnace is facilitated, and inner consumption of the submerged arc furnace is reduced.

The present invention relates to a CD changer of the 'carousel type', in which three or five optical recording media, referred to below as disk, are arranged on a rotatable disk holder, the carousel. It has a drawer (2) which can be moved between a retracted and an extended position by a drawer movement mechanism (8). The object of the invention is to propose a solution which improves the functionality of the CD changer. It is proposed in the invention that the drawer has a stop (15, 25) which, in the extended position, bears against a pin (11, 21) of the drawer movement mechanism (8), and which, when force acts on the drawer (2), exerts on the drawer movement mechanism a force which is directed in the radial direction of said mechanism.

The invention relates to an angle-controllable manual angle folding device for metal plate machining and a construction technology. The angle-controllable manual angle folding device for metal plate machining comprises a rack. The device also comprises a clamping device arranged on the rack and used for loosening and clamping the plate; a bending device comprising an overturning plate rotationally connected with the rack and an angle control instrument panel for limiting the overturning angle of an overturning plate; and a distance controller comprising a positioning part, and the positioning part is arranged to be placed between the two forming faces of the bent plate when the plate is bent so as to control the distance between the two forming faces after the plate is bent; a multi-curvature flat lock catch system plate bending device meets the bending requirement for various plate modeling designs of a multi-curvature flat lock catch system, angle positioning is accurate, the plate machining process is simple, the lock catch connecting quality is greatly improved, the machining and construction efficiency is improved, the construction cost is reduced, rapid machining and installation of plates are achieved, and the construction precision is guaranteed.

The invention provides a multi-angle angle gauge block. The multi-angle angle gauge block is used for adjusting the angle of a stator blade in a casing, a shaft neck is arranged on the stator blade, positioning pins are arranged on the casing, the angle gauge block is circular, N square grooves matched with the positioning pins are circumferentially arranged on the outer edge of the end face of the angle gauge block, the value range of N is larger than 1, the positions of N square grooves sequentially correspond to N adjusting angles of the stator blade, a polygon through hole is formed in the center of the angle gauge block, and is provided with M sides, M is equal to 2N, and the polygon through hole is in a regular polygon shape; the center lines perpendicular to the bottom faces of the square grooves pass through the center point of the polygon through hole, the center line of one square groove is further perpendicular to one set of opposite sides of the polygon through hole, and the included angle between the center line and the vertical line of the side, corresponding to the center line, of the polygon through hole is the adjusting angle.

The invention discloses a method for automatically controlling and rapidly, accurately and precisely locating fan-shaped distribution of a bell-less blast furnace. The method comprises the following specific steps of setting allowance of fan-shaped distribution, and setting a first fan-shaped set angle beta1 and a second fan-shaped set angle beta2; judging a fan-shaped set angle; collecting position data of a rotary chute in real time, carrying out angle conversion to obtain a circumferential position angle of the current rotary chute, and comparing with the first fan-shaped set angle beta1 and the second fan-shaped set angle beta2; and allowing blanking when the rotary chute is in the target position of the fan-shaped distribution. According to the invention, the angle location of fan-shaped distribution of a blast furnace chute is more precise and rapid; the idle running time and the distribution waiting time of a rotary motor are shortened; two numerical values of the fan-shaped set angle can be arranged freely; the wrong arrangement phenomenon of the numerical values does not exist; by means of precise distribution angle, a reasonable surface shape and ore-to-coke ratio distribution are formed in a blast furnace; and beneficial conditions are created for stability operation of the blast furnace.

The invention belongs to the technical field of 5G antennas, particularly relates to a 5G antenna and a 5G antenna mounting base, and aims to solve the problem that the 5G antenna is inconvenient to replace, disassemble and assemble. The 5G antenna mounting base comprises a bottom plate and a supporting column, the mounting base is fixed to the outer wall of the top of the bottom plate, and a first circular groove is formed in the outer wall of the top of the mounting base; a first rectangular groove is formed in the position, located on the inner wall of the first circular groove, of the outer wall of the top of the mounting base, a first annular groove is formed in the inner wall of the first rectangular groove, a second annular groove is formed in the mounting base, and four second mounting rods distributed at equal intervals are fixedly mounted on the circumferential outer wall of the second annular groove; and a first movable rod is fixedly mounted at the top end of the second mounting rod. The supporting column and the first fixing plate are inserted into the first circular groove and the first rectangular groove in the top of the mounting base, the push rod is pushed to enable the first movable rod to rotate, the first movable rod is rotationally inserted into the third annular groove, the supporting column and the first fixing plate are fixed tightly, and workers can conveniently disassemble, assemble and use the 5G antenna mounting base.

The invention discloses a folding glasses temple, belonging to the field of glasses. The folding glasses temple comprises a first glasses temple, a second glasses temple and a connecting piece hingedwith the first glasses temple and the second glasses temple, wherein the connecting piece is in a polygonal column shape; the end part of the first glasses temple is provided with a first mounting hole; the second glasses temple is provided with a second mounting hole; the shape of the first mounting hole and the shape of the second mounting hole correspond to the connecting piece; and one of thefirst mounting hole and the second mounting hole is in running fit with the connecting piece, and the other one of the first mounting hole and the second mounting hole is in fixed fit with the connecting piece. The folding glasses temple has the advantages of being accurate in positioning and good in practicability.

The invention discloses a pitching mechanism of a centrifugal type blower, which comprises an air flue and a housing, wherein the air flue is arranged in the housing. The pitching mechanism of the centrifugal type blower is characterized by also comprising a pitching bracket and a supporting housing, wherein the pitching bracket is shaped as a short ring column body with an outward flange, the housing is provided with an inner flanged circular hole, the end edge of the inner flanged circular hole is provided with a limit groove, the short ring column body of the pitching bracket penetrates through the inner flanged circular hole from the inner side of the housing and is tightly matched with the inner flanged circular hole, a limit rib arranged at the inner side of the flange is matched inthe limit groove and enables the flange to be tightly attached on the end edge of the inner flanged circular hole, the end of the short ring column body is fixed on a support housing, and one end of the air flue, which is towards the pitching bracket, is tightly attached with the flanged end of the pitching bracket. By adopting the structure that the pitching bracket is matched and limited with the supporting housing and the air flue, the pitching mechanism effectively realizes the pitching regulation and the pitching angle stepless regulation of the centrifugal type blower, and has the advantages of simple structure, convenience for installation, stronger mechanical strength, accuracy and reliability in angle positioning and high maneuverability.

The invention discloses a welding tool for a movable shaft of a round straw bale baling machine. The welding tool comprises a base plate. An oil jack nose hole positioning sleeve and a wide oil jack nose front positioning plate are fixedly connected to the middle of the base plate. One end of the movable shaft is connected with a movable shaft pipe end positioning plate in an abutting mode. A movable shaft pipe deflection fixing hole positioning pin is inserted into a movable shaft pipe deflection fixing hole. The middle of the movable shaft is sleeved with a first oil jack nose and a second oil jack nose. An oil jack nose hole positioning pin penetrates through oil jack nose holes in the upper ends of the first oil jack nose and the second oil jack nose and the oil jack nose hole positioning sleeve. A movable shaft pipe is arranged in an upper hole of a flange in a sleeved mode, and a flange lower hole positioning block is mounted in a lower hole of the flange in a sleeved mode. The flange, the first oil jack nose and the second oil jack nose are welded to the movable shaft. According to the welding tool for the movable shaft of the round straw bale baling machine, the angles between the oil jack noses of the movable shaft and the flange as well as between the oil jack noses and the move shaft pipe deflection fixing hole are accurately positioned, labor intensity is greatly relieved, and production efficiency is greatly improved; and meanwhile, the quality and interchangeability of the movable shaft of the round straw bale baling machine are improved.

The invention discloses a novel water surface towing test device platform based on two degrees of freedom. The platform comprises a directional unloading device system, a vertical keel beam structure,a two-degree-of-freedom force measurement system, an eight-claw rigidity reinforcing system, a trailer axle and a test model. According to the novel water surface towing test device platform based onthe two degrees of freedom, the unloading precision is improved by use of a vertical unloading device in the directional unloading system, and the error can be reduced by about 30%, thereby improvingthe accuracy of hydrodynamic and pneumatic tests such as a lifting resistance and a heaving height. The vertical keel beam structure has the functions of height controllable rotational yawing, precise angle positioning, and controllable placement model, thereby improving the test work efficiency. The two-degree-of-freedom force measurement system can perform up-and-down heaving movement and pitching movement; the pitching movement can be used for accurately positioning an angle and rigidly locking; and a test is conducted on a pitch angle of an accurate positioning model. The eight-claw rigidity reinforcing system improves the strength and rigidity characteristics of the test model, has the adaptability and universality of different model tests and can meet the requirements of different test working conditions.

The invention discloses a micro piezoelectric sprayer based on an iris turbofan and a nozzle aperture regulation and control method. The micro piezoelectric sprayer based on the iris turbofan comprises a micro motor of a driving gear, the iris turbofan meshed with the driving gear, and a piezoelectric sprayer body arranged above the iris turbofan. And the exterior of the iris turbofan is meshed with the driving gear through an outer driven gear and an inner driven gear which are integrally formed. The interior of the iris turbofan is meshed with the inner driven gear through a plurality of thin metal blades provided with blade gears, and the multiple blades are overlapped to form a nozzle with the adjustable hole diameter. The piezoelectric nozzle has the beneficial effects that the aperture size of the nozzle can be flexibly adjusted, the function that one piezoelectric nozzle is used for jet printing of different precision sizes is achieved, and the requirements of various jet printing targets are met.

The invention discloses front sway type automatic saw cutting machining equipment. The front sway type automatic saw cutting machining equipment comprises a hold-down mechanism, a discharging mechanism and a front sway blade sawing mechanism, wherein the hold-down mechanism, the discharging mechanism and the front sway blade sawing mechanism are arranged on a rack. Swaying of the blade sawing mechanism is completed through a servo motor, and saw cutting machining at any angle from 45 degrees to 135 degrees can be achieved; an air cylinder and a damping cylinder are adopted for feeding of saw blades, the feeding is stable, and cut end faces of sectional materials are smooth and burr-free; after stub bars are cut, the saw blades retreat, are pressed tightly and horizontally and then are released, and therefore the phenomenon of slip can be avoided; the front sway type automatic saw cutting machining equipment is simple in structure, high in automation degree, high in machining accuracy and high in machining efficiency. The method utilizing the equipment to machine the sectional materials includes the following steps: enabling the saw blades to sway to 45 degrees, conveying workpieces, pressing the workpieces tightly, cutting the workpieces to form 45-degree end face angles, pressing tightly and releasing the workpieces and enabling the stub bars to fall, enabling the saw blades to sway to 135 degrees, horizontally pressing the workpieces tightly, moving the workpieces right and conveying the workpieces, pressing the workpieces tightly, cutting the workpieces to form 135-degree end face angles, pressing tightly and releasing the workpieces, moving finished workpieces right to the discharging mechanism through a right workbench, and moving the finished workpieces right to a discharging table through the discharging mechanism.

The invention discloses a nonstandard guide blade machining device. The nonstandard guide blade machining device comprises a flange plate; and a second through hole is formed in the circle center of the flange plate. The nonstandard guide blade machining device further comprises a positioning shaft; the positioning shaft comprises a cylinder section, a taper section and a step section axially connected in sequence; a shaft sleeve is arranged on the step section; the bottom end of the cylinder section is radially shrunk as a shaft head; the shaft head is embedded in the second through hole; thetop surface of the flange plate is connected with a pair of rectangular guide blocks; angular positioning forks are clamped in opening grooves of the pair of guide blocks; and U-shaped grooves are formed in the end surfaces, far from the flange plate, of the angular positioning forks. The nonstandard guide blade machining device further comprises a mandrel; and one end of the mandrel is arrangedin the second through hole, and is opposite to the shaft head. The nonstandard guide blade machining device solves the problem of low blade positioning precision in traditional machining.

The invention relates to a transit mixer for free-flowing media, in particular concrete, the mixing drum of said mixer being mounted on supports. According to the invention, the rollers that bear thecircular path of the mixing drum are partially sunk in the support housing.

The invention relates to a plasma cutting linear groove swinging device. Concentric arc racks are mounted on an arc guide rail; upper and lower guide rail surfaces of the arc guide rail are V-shaped; a rotating plate is matched with the upper and lower guide rail surfaces of the arc guide rail through three V-shaped section rollers, which are shaped like a reversed delta; a speed reducing motor is mounted on a bracket; a gear engaged with the arc rack is mounted on an output shaft of the speed reducing motor; a clamper seat for clamping a plasma cutting torch is connected to the rotating plate by a connecting bracket; a connecting line between a cutting point after being clamped by the plasma cutting torch and the circle center of the arc guide rail is horizontal, and the cutting point and the circle center of the arc guide rail are positioned on the same vertical plane. The plasma cutting linear groove swinging device provided by the invention can be electrically controlled according to requirements on angles, such as grooves; the rotation center of the rotated cutting torch is always kept invariable without using the system to compensate the offset of the rotation center, so that high automation degree, accuracy for positioning the angle, high working efficiency and good cutting quality are achieved. According to the invention, the electric control can be achieved by a common motor, so that equipment manufacturing cost is low.

The invention discloses an accurate set-up treatment bed, which comprises a set-up platform and a substrate. A multi-degree-of-freedom parallel mechanism is arranged between the set-up platform and the substrate. A horizontal motion control assembly and a vertical motion control assembly are arranged in sequence under the substrate. The horizontal motion control assembly comprises a first direction control assembly and a second direction control assembly. The first direction and the second direction are perpendicular in a horizontal plane; movement in the first direction and the second direction is horizontal movement; and the vertical motion control assembly drives the horizontal motion control assembly to move up and down. Through major change of the treatment bed and fineness control of the parallel mechanism, adjustment of the angle and position can be realized very well; and meanwhile, the accurate set-up treatment bed is small in land occupation area, is wider in application range and is enhanced in practicality.

The invention discloses a toothholder positioning tool for a cutting head. The toothholder positioning tool for the cutting head is used for providing positioning for the toothholder when the toothholder is connected on a cutting head body of the cutting head. The toothholder positioning tool comprises an installing platform, a curved plate and a positioning structure; the installing platform is used for placing and fixing the cutting head body; the curved plate is installed on the installing platform; and the positioning structure comprises a connection portion connected with the curved plate and a fixing portion used for fixing the toothholder, the connection portion is connected with a positioning portion installed on the curved plate to define a first axis line, an included angle between the fist axis line and the water level is the chamfer of the toothholder, the fixing portion rotates around the first axis line relative to the connection portion to adjust the rotation angle of the toothholder. Compared with the prior art, the toothholder positioning tool can adjust the rotation angle of the toothholder, so that angle positioning of the toothholder is more accurate; in addition, according to the toothholder positioning tool, the angel of the toothholder is positioned by directly adjusting the installing process corner of the toothholder, so that the cutting function angle of cutting teeth is positioned, and positioning is more accurate.

The invention relates to a deep sea full-rotation propelling device which comprises a flange base; a plurality of rotary rollers are evenly distributed in the flange base, and a rotary shell extends into the flange base and makes contact with the rotary rollers. A first motor and a second motor are both arranged in the flange base, and the output end of the first motor transmits a rotating pair tothe rotary shell through a first-stage transmission device to be used for achieving rotation of the rotary shell. A thruster rotating shaft is installed on the rotary shell, the output end of the second motor transmits the rotating pair to the thruster rotating shaft through a second-stage transmission device; one part, exposed out of the rotary shell, of the thruster rotating shaft is connectedwith a propelling mechanism through a connecting piece, and the thruster rotating shaft receives the rotating pair and drives the propelling mechanism to swing. By arranging the first-stage transmission mechanism, the rotating action of the rotary shell can be realized, and by arranging the second-stage transmission mechanism, the swinging action of the propelling mechanism can be realized, so that the continuous high-precision rotation of the whole mechanism in a three-dimensional hemispherical space is realized.