71results about How to "High repeat positioning accuracy" patented technology

The application discloses a semiconductor flat-plate warehouse inserting and taking structure, which comprises an inserting and taking connecting frame, an inserting and taking arm and a self-adapting locking mechanism arranged on the inserting and taking arm. The self-adapting locking mechanism mainly comprises a straight-line transmission rod, a scissor type lifting amplification mechanism, a limiting pressing plate and a guiding reset unit. The core of the application is that the self-weight load generated during the inserting and taking of the flat-plate warehouse is used as a driving force. When the inserting and taking arm supports the flat-plate warehouse, the weight presses the straight-line transmission rod, forces the scissor type lifting mechanism to expand and drives the limiting pressing plate to stably move downwards, so that the positioning pin on the limiting pressing plate is inserted into the pin hole of the flat-plate warehouse, automatic locking and positioning are realized. After unloading, the mechanism is automatically reset under the action of the reset spring. The application does not need external power, realizes "inserting and taking to locking", can effectively inhibit the inertial swing and vibration during the carrying process, prevents the wafers in the warehouse from being damaged due to knocking and has the advantages of simple structure, reliability, safety and high positioning precision.

The invention discloses a cooperative control method for manufacturing precision between complex thin-wall microsphere shell component forming processes, and relates to the technical field of microsphere shell component machining. The invention relates to a multi-process forming method for a micro-spherical crown structure on the surface of a complex thin-wall micro-spherical shell component in the prior art. According to an existing manufacturing precision keeping and reference transferring method, due to factors such as low soft and brittle hardness of a workpiece material, high precision requirement and multiple processes, the pose precision and the manufacturing precision of a micro-spherical shell are difficult to keep in multi-process circulation. The device is used for four workpiece circulation processes of material milling removal-laser etching marking-milling quality characterization-laser local modification-surface quality detection corresponding to three processes of milling removal of a micro spherical crown structure on the surface of a thin-wall micro spherical shell component, laser modification and measurement characterization. All the steps cooperate to achieve high-precision forming of the micro-spherical crown structure on the surface of the complex thin-wall micro-spherical shell component. The method is used for forming the complex thin-wall microsphere shell component.

The invention discloses a motor air tightness testing device, and solves the problem that a test result can be obtained only through multiple times of detection or time increase due to the fact that existing detection equipment is too long in detection time. The motor air tightness testing device comprises an air tightness tester, a motor positioning assembly used for positioning a testing motor, an inflation pipeline assembly connected with the air tightness tester, and a motor outgoing line ventilation assembly communicated with a motor outgoing line of the testing motor. The air inflation pipeline assembly comprises a first air inflation pipeline connected with an air inlet of the test motor and a second air inflation pipeline connected with the motor outgoing line ventilation assembly, and the first air inflation pipeline and the second air inflation pipeline inflate the test motor in the air tightness test process of the test motor.

The utility model relates to a kind of kink manipulator, belong to mechanical equipment technical field, kink manipulator includes drive assembly, transmission assembly and torsion clamping assembly;The linear stroke of first arc guide slot in transmission assembly one end is less than the linear stroke of second arc guide slot;Torsion clamping assembly includes pivot, main shaft, mechanical claw and rack;Drive assembly rotates main shaft by transmission assembly;Pivot one end is connected with first arc guide slot by connecting piece, and the other end passes through main shaft and is coaxially connected with rack;Main shaft one end is connected with second arc guide slot by connecting piece, and the other end installs the fixed part of mechanical claw;Two pincers of mechanical claw are symmetrically engaged connection with the two sides of rack;Two pincers are rotated by rack and drive pivot rotation when rotating;Two pincers are realized clamping, opening by engagement transmission when pivot and main shaft telescopic movement.This utility model is high in repeat positioning accuracy, clamping force is controllable, avoid product deformation or breakage, packaging film has no loose, wrinkle phenomenon.

The application belongs to the technical field of part assembly and detection, and discloses an automobile safety box assembly and visual detection integrated device, which comprises a mounting frame, the bottom of the mounting frame is slidably connected with a transverse sliding plate through an electric push rod, and the top of the transverse sliding plate is slidably connected with a bearing table. Through the cooperation of the extrusion rod, the arc-shaped chute, the rotating disc and the shaft rod and other structures, the accurate linkage of the lifting of the tightening device and the deflection of the industrial camera is realized. When the tightening operation is performed, the extrusion rod descends synchronously and presses against the side wall of the arc-shaped chute, so that the rotating disc rotates, the shaft rod drives the industrial camera to deflect synchronously towards the tightening device, and the industrial camera automatically aligns with the current station to perform real-time monitoring following the lifting action of the tightening device during the whole process from the beginning of tightening to the completion of tightening. The defects of single screw, such as thread slipping, skewing or incomplete positioning, can be found in the first time, and the large quantity of rework caused by the problem found after all the screws are tightened and then concentrated detection is avoided.

This invention discloses a fixture and method for machining and positioning oblique holes in the sidewalls of measuring pipes. The fixture includes a clamping platform and two sets of built-in cooling components. The clamping platform is equipped with a support assembly and a clamping and positioning mechanism. The clamping and positioning mechanism includes fixed and movable clamping components symmetrically arranged on the clamping platform. Each of the fixed and movable clamping components has a centering component at one end facing the other. The two centering components are respectively used to abut against the two ends of the measuring pipe section to achieve self-aligning clamping and positioning of the measuring pipe section. The two sets of built-in cooling components are symmetrically arranged on the two inner sidewalls of the measuring pipe section to be drilled. Each built-in cooling component has a cooling channel inside, which is connected to an inlet pipe and an outlet pipe, respectively. The inlet and outlet pipes are used to circulate cooling medium into the built-in cooling components. The beneficial effects of this invention are: it solves the technical problems of poor positioning accuracy and difficulty in controlling thermal deformation of the pipe body in existing oblique hole machining processes.

This utility model relates to the field of actuator technology, and in particular to a centrally positioned pneumatic actuator, comprising a cylinder body and a main shaft disposed inside the cylinder body. A piston is fitted on each side of the main shaft, and the piston drives the main shaft to rotate. The actuator also includes a positioning block, a first adjusting screw, and a second adjusting screw. A hexagonal post is disposed on the main shaft, passing through and connecting to the positioning block. The main shaft drives the positioning block to rotate coaxially via the hexagonal post. The first and second adjusting screws are threaded through the side wall of the cylinder body, and each end of the first and second adjusting screws inside the cylinder body has a first limiting end and a second limiting end, respectively. The first and second limiting ends are used to limit the contact with both ends of the positioning block. This utility model, with its centrally positioned limiting structure, allows for real-time adjustment of the actuator's stroke range.

This utility model relates to a fixture for machining short nozzle EDM orifices, used for irregularly shaped short nozzles. The fixture includes a clamping body and a locking device. By setting a circular positioning groove that matches the circular cross-section of the bottom of the irregularly shaped short nozzle, a radial positioning reference is provided for the nozzle, solving the initial positioning error caused by mismatched positioning references in traditional clamping methods. At the same time, by setting a radially pressing locking device on the top sidewall of the clamping body, a uniform radial clamping force can be applied to the circular part at the bottom of the nozzle, overcoming the problem of uneven clamping force caused by the non-cylindrical structure at the top, and limiting the circumferential deflection tendency of the workpiece during processing, thereby significantly improving clamping stability and repeatability.

The utility model discloses a quick -wearing formula magnetism sucking disc relates to magnetic fixture technical field, including the bottom plate of being fixed on the workbench through screw, the bottom plate is placed with the disk body, and the disk body both sides are fixedly connected with the connecting plate, is equipped with the pressing plate on the connecting plate, and the pressing plate is installed with locking mechanism symmetry on. The locking mechanism includes the locating pipe, the lock core column, the spring, the stop head and the clamping ball, and the locating pipe penetrates the pressing plate, the connecting plate and the bottom plate, and the bottom plate is equipped with the connecting hole and the annular groove, when the lock core column resets under the spring effect, the clamping ball embeds the annular groove and realizes locking, and the lock core column is pressed and then removes the locking. The structure cooperates through the pressing plate and the locking mechanism, realizes the quick connection and disassembly of disk body and bottom plate, improves the assembly efficiency and the positioning accuracy, has simple structure, convenient operation, locking reliable advantage, is applicable to the quick clamping operation under a variety of working conditions.

The invention relates to a welding device for sheet metal parts of a dining car carriage and a working method thereof.The welding device comprises a welding robot and a material fixing mechanism, the material fixing mechanism comprises an electric rotary table, a supporting rotary column is fixedly installed at the rotating end of the electric rotary table, and a bottom plate electromagnetic base is installed on the supporting rotary column; a plurality of first adsorption blocks are detachably mounted on the bottom plate electromagnetic seat, a rotating ring is rotatably mounted on the supporting rotating column, a supporting arm is mounted on the outer side of the rotating ring, a telescopic arm is slidably mounted in the supporting arm, and a cross beam is rotatably mounted on the top side of the outer end of the telescopic arm; according to the invention, ultra-high flexibility and high-precision customization-free positioning are realized, a traditional clamp mode is subverted, and a universal positioning platform is constructed through combination of a modularized multi-degree-of-freedom kinematic chain and a self-adaptive adsorption system.

The utility model relates to vacuum coating equipment technical field, concretely is a kind of vacuum coating turnover device. The device includes support structure, workpiece clamping mechanism, turnover mechanism, limiting structure and tensioning mechanism. Clamping mechanism is driven by screw rod and clamping part is realized to the clamping of workpiece, and turnover mechanism is composed of synchronous belt and rotating wheel, and first support is fixed to the outer periphery of synchronous belt, and workpiece turnover is realized with synchronous belt rotation;Limiting structure is used to control the angle of rotation, and tensioning mechanism is used to adjust the tension of synchronous belt. The device compact structure, adopt pure mechanical transmission, high stability, applicable to the vacuum coating workpiece turnover operation of bathroom hardware etc. that need double-sided processing.

The invention belongs to the technical field of sewing equipment, and relates to a step adjustment cloth feeding mechanism of a sewing machine, which comprises a rotary driving source, which synchronously drives two mechanically coupled adjustment paths: one controls a differential ratio through a cam transmission part on a first transmission gear, and the other controls a stitch length through an eccentric transmission feature on a second transmission gear; a plurality of different equal-radius arc surface segments are arranged on the cam transmission part, and a second gear transmission part of the second transmission gear is engaged with a first gear transmission part of the first transmission gear in the form of a speed-up transmission ratio; wherein, when the stitch length is adjusted, the cam transmission part keeps running on the same equal-radius arc surface segment; when the differential ratio is adjusted, the net adjustment amount of the eccentric transmission feature on the stitch length is zero. The step adjustment cloth feeding mechanism of the sewing machine provided by the invention can independently adjust the stitch length and the differential ratio of the cloth feeding mechanism during the sewing process, and has the characteristics of compact structure, simple control and high adjustment precision.

The application discloses a multifunctional scanning rod for temporary dentures and relates to the technical field of oral implantation and repair. The scanning rod comprises a shell, an expansion sleeve, an inner screw, a threaded sleeve and a reference rod. An assembly hole is arranged in the shell and penetrates in the axial direction, a fixed part of the expansion sleeve is fixed in the assembly hole, and an expansion part is surrounded by a plurality of elastic expansion plates and is gathered to the axial line in a natural state. The inner screw has an outer threaded section and a distraction section, the threaded sleeve is internally provided with a first reverse conical insertion hole and a second insertion hole with an inner thread, and the outer periphery of the threaded sleeve is provided with a first outer thread and a second outer thread with different pitches. The outer threaded section of the inner screw is connected with the second insertion hole, and the distraction section is located in the expansion part. The rod part of the reference rod is threadedly connected with an inner mounting hole of the inner screw. When the reference rod is rotated, the distraction section radially expands the expansion plates. The scanning rod has adjustable locking force, high connection rigidity and can significantly improve the reliability of in-mouth scanning data.

The application discloses a water meter core insertion device with visual correction function, a pneumatic gripper adopts multi-finger, the inner side of the finger and the contact surface of the core adopt arc-shaped profiling design, the finger clamping pressure is adjustable, and the deformation of the core or the falling of the core caused by improper clamping force in the grabbing process is avoided. The shell clamp device adopts right positioning cylinder, clamping cylinder, centering cylinder, left positioning cylinder, or front and rear positioning block clamping positioning, and adopts centering shaft correction clamping mode, which further improves the positioning accuracy of the shell, and ensures that the core is smoothly inserted in place. The visual camera takes pictures to calculate and correct the angle operation process, which is to calculate the correct rotation correction angle, and the finger clamping position avoids the protruding positioning surface on the core. Each functional device adopts compact modular design, which not only realizes single machine application and multi-station production line online use, but also realizes compact layout, reduces equipment motion beats, reduces equipment system cumulative error and the like.

This invention provides a mass production machining device for door pillars, belonging to the field of door pillar mass production machining technology. It includes a base, with mounting brackets mounted on the top of the base. The mounting brackets have equidistant first limiting grooves and equidistant mounting grooves on their tops. Four mounting brackets are equidistantly arranged on the base, and one mounting bracket located on one side edge of the base has equidistant first limiting blocks on its top. This invention, by setting up an auxiliary positioning mechanism and a limiting and fixing mechanism, allows the eight first sliding grooves to be quickly positioned to the machining position on the top of the base in one go, avoiding multiple alignment adjustments and improving positioning efficiency. Furthermore, the limiting and fixing mechanism further limits and fixes the transported profile body, ensuring that the profile body remains stable, does not shift, and does not shake during processing, ensuring consistent processing benchmarks.

The invention relates to a small four-direction angle adjusting mechanism, belongs to the technical field of laser control and detection, and solves one of the problems that an existing laser emitting device detection device is tedious and complex in operation process, large in equipment size or large in weight, the adjusting precision seriously depends on the hand feeling of an operator, or the detection efficiency is low and the like. The mechanism comprises an orientation driving mechanism, a high-low driving mechanism, a supporting rotating mechanism, a zero position self-checking mechanism and an adaptive assembly, the orientation driving mechanism, the high-low driving mechanism and the supporting rotating mechanism achieve four-direction angle adjustment of the mechanism, and the adaptive assembly rapidly clamps detectors of different sizes. According to the invention, rapid and repeatable fine adjustment of four-direction angles of the optical system of the detector of the laser emitting device can be realized, the structure is compact and portable, the detection efficiency is high, and the adaptability is strong.

The utility model relates to the technical field of metal processing, in particular to a metal processing deburring machine tool which comprises a main body, a part moving clamping assembly is fixedly connected to the top of the main body, and a lifting translation assembly is arranged on the side face of the main body. The motor is used for driving the lead screw to rotate, so that the threaded block drives a part clamped at the top of the machining table board to move, high-precision position control can be achieved through the lead screw transmission mode, and the machining precision is improved through the precise thread pitch design and the high-precision lead screw manufacturing process. The position precision of a part in the moving process can be guaranteed, large thrust and large pulling force can be borne through the hydraulic cylinder, a heavy grinding mechanism can be stably moved and positioned, it can be guaranteed that the lifting position of the grinding mechanism is accurate, and the stability of the grinding process and the surface quality of the part can be guaranteed; and meanwhile, proper stroke and thrust of the hydraulic cylinder can be selected according to the size and the shape of the part.

The invention discloses a vibration suppression module and a dynamic deviation correction system and method for high-speed lamination of battery pole pieces, and belongs to the technical field of battery manufacturing, the dynamic deviation correction system comprises a lamination table, the vibration suppression module, a lamination hand and an unwinding roller, a spring buffer structure and a magnetic module are arranged at the two ends of the lamination table, the vibration suppression modules are arranged at the two ends of the reciprocating motion track of the lamination table, each vibration suppression module comprises a first trigger switch, an electromagnetic module and a second trigger switch, primary speed reduction is carried out through spring buffering, accurate positioning and hard contact triggering are achieved through electromagnetic adsorption, and the vibration suppression modules are arranged on the two ends of the reciprocating motion track of the lamination table. The vibration of the lamination table in place at a high speed is effectively inhibited, and meanwhile, the system integration two-way communication module and the control computer perform real-time error compensation by comparing time position coordinates fed back by the lamination table in real time with a preset track to form closed-loop dynamic deviation correction, so that the positioning precision, the stability and the production efficiency in the high-speed lamination process are greatly improved.

The utility model discloses a kind of tire bead carrying device, including frame, side plate, moving plate and clamping pickup mechanism, ensure that clamping component runs smoothly by chute and slider cooperation structure, improve positioning accuracy.The clamping pickup mechanism is set on moving plate, including fixed frame, moving block, first baffle ring and second baffle ring, realize clamping action by cylinder driving, and reset stability is enhanced by spring.The equipment is also provided with bevel gear transmission system driven by motor, drive connecting rod structure to realize the horizontal displacement of moving plate, improve carrying efficiency.Clamping assembly can replace different specifications of bead adaptation component according to production demand, enhance the flexibility and application range of equipment.The overall structure layout is reasonable, stable in operation, can satisfy the actual demand of tire bead efficient, reliable carrying on tire production line, with good application prospect.

This utility model provides a turning device for a magnetic material hole-punching machine, including a base; a lifting seat assembly, including a lifting seat and a lifting drive mechanism; a turning assembly, including a main shaft and a receiving seat, the side wall of which has a receiving hole, the axis of which is perpendicular to and intersects the axis of the main shaft; and a turning drive mechanism for driving the receiving seat to rotate and turn, including a gear, a rack, and a drive device. The gear is mounted on the main shaft, the rack is horizontally slidably fitted on the lifting seat and meshes with the gear, and the drive device is mounted on the lifting seat with its output end connected to the rack for driving the main shaft to rotate. This utility model's turning device for a magnetic material hole-punching machine has a compact structure, low manufacturing cost, small size, good operational stability, and is easy to maintain.

The utility model relates to the field of laser positioners for machine tools, and discloses a laser positioner for a machine tool, which comprises a machine tool body, driving mechanisms are arranged on the right side and the rear side of the machine tool body, a positioning mechanism is arranged at the top of each driving mechanism, and each positioning mechanism comprises a laser positioner and a bottom plate. A mounting plate is fixedly connected to the bottom of the laser positioner, a limiting block is fixedly connected to the bottom of the mounting plate, a limiting groove is formed in the top of the bottom plate, the limiting block is inserted into the inner wall of the limiting groove, and a clamping block is slidably connected to the inner wall of the bottom plate. According to the laser positioning device, the clamping block is pulled through the pull ring to overcome the elastic force of the reset spring so that the clamping block can be disengaged from the clamping groove, the installation plate and the laser positioner can be rapidly disassembled, the laser positioner can be easily installed on different types of machine tools, the universality and flexibility of equipment are improved, the laser positioner can be disassembled without screwing a bolt, and the working efficiency is improved.

The utility model provides a kind of limit lifting mechanism, it is related to the technical field of semiconductor processing equipment.The utility model is provided with the limit stopper with different height limit surface by being set in the lifting driving element side close to bearing assembly, and limit stopper is moved and installed on driving element, so that in the bearing assembly lifting process, when bearing assembly moves to limit surface position, it can be effectively blocked, to realize reliable limit to bearing assembly upper end point.The utility model's limit stopper position is changed by the contact position of limit surface relative to bearing assembly, the lifting height of bearing assembly can be flexibly changed, which is conducive to adjusting limit lifting height according to process requirement.The utility model structure design is simple, adjustment mode is intuitive, different height positions can be switched quickly without replacing main components, the adaptability of equipment to different processes or different workpieces is improved, with the beneficial effects of convenient adjustment, high repeat positioning accuracy and maintenance efficiency improvement.

This application provides an automatic rotary collet mechanism, including a collet chuck for clamping a workpiece to be processed and a collet chuck drive device for driving the collet chuck to move. The collet chuck and a power transmission shaft are disposed within the internal space formed by the rotating shaft. The power transmission shaft is driven to perform axial reciprocating motion by the pressure generated by the fluid in the fluid channel. One end of the power transmission shaft is provided with a pull lug, and one end of the collet chuck is provided with a limiting groove that matches the shape of the pull lug. A closed fluid channel is formed inside the rotating shaft. The collet chuck, driven by the pull lug, performs axial reciprocating motion along the rotating shaft while simultaneously clamping or retracting radially along the rotating shaft. The automatic rotary collet mechanism provided by this application improves clamping stability and helps to improve the processing quality of the workpiece clamped therein.

The application discloses an automatic positioning mechanism for a printing mandrel, comprising a wall plate, a linear guide rail fixed on the wall plate, a moving seat slidingly installed on the linear guide rail, a cylinder installed on the moving seat, a taper top fixedly connected to an extending end of the cylinder, a bearing fixed to one end of the taper top away from the extending end of the cylinder, a mandrel connected to the other end of the bearing, a sleeve fixedly connected to the mandrel through tensioning, and the mandrel being in a cantilever state. The automatic high-precision repeated positioning of the printing mandrel is realized through the forward and backward reciprocating action of the cylinder and the taper positioning between the taper top and the taper sleeve, so that the printing quality and the plate changing efficiency are improved. The application further discloses an automatic positioning method for a printing mandrel.

This application discloses a servo turntable assembly for a center-driven vertical injection molding machine and the vertical injection molding machine itself, belonging to the field of intelligent manufacturing equipment. It includes a mold base, an upper mold-closing base, a lower mold-closing base, a turntable, a turntable servo assembly, a mold-closing linkage assembly, a mold-closing servo assembly, and a mold-closing fine-tuning assembly. This application has the effects of reducing injection molding machine energy consumption, reducing pollution, and improving mold-closing accuracy.

The application discloses a high-precision shaft pneumatic tool. The tool comprises a cylinder, a bottom plate, a base, a plurality of elastic clamps, a pressing plate, a pull core, a guide column, a guide sleeve and a plurality of axial positioning columns. The base is provided with a plurality of clamp mounting holes corresponding to the elastic clamps, and the pressing plate is provided with a pressing hole matched with the upper end of the elastic clamp. The cylinder drives the pressing plate to make axial reciprocating motion relative to the base through the pull core. The guide column and the guide sleeve limit the movement of the pressing plate along the axial direction. The axial positioning columns installed on the bottom plate are coaxially arranged with the elastic clamps. The air pressure regulating valve is arranged on the inlet circuit of the cylinder. When the pressing plate is moved towards the base by the pull core, the elastic clamp is radially contracted and self-centered to clamp the workpiece. Conversely, the elastic clamp is opened by its own elasticity to release the workpiece. The application can effectively reduce the clamping deformation and surface damage of small shaft parts, improve the radial run-out control ability, the repeat positioning accuracy, the multi-station machining consistency and the change efficiency.

The utility model relates to robot alignment technical field especially a kind of alignment platform and robot, including fixed platform and adjustment platform, levelness adjusting unit implements the adjustment to adjustment platform levelness, first distance adjusting unit implements the adjustment to the distance between adjustment platform and fixed platform along first direction, second distance adjusting unit implements the adjustment to the distance between adjustment platform and fixed platform along second direction, first direction and second direction are horizontal and perpendicular to each other, distance measuring unit is used to measure the distance between adjustment platform and fixed platform along the first direction and second direction, the alignment platform is through levelness adjusting unit cooperation first, second distance adjusting unit and distance measuring unit, realizes orthogonal bidirectional accurate positioning, can automatically compensate the position deviation caused by environmental interference, and the repeat positioning accuracy is high, improves production efficiency and product yield, reduces raw material waste and production cost.

The utility model relates to the technical field of weighing apparatus equipment, in particular to a novel weighing apparatus weighing platform rapid installation structure, which comprises a fixed base and an installation plate, the fixed base is pre-embedded in a concrete foundation, and the top of the fixed base is provided with a central positioning column with an inverted conical guide surface and a plurality of L-shaped chutes arranged in a surrounding manner; the mounting plate is fixed at the bottom of a weighing platform of the weighing apparatus, the lower surface of the mounting plate is provided with a forward conical guide sleeve matched with the central positioning column and locking slide block assemblies correspondingly matched with the L-shaped slide grooves, each locking slide block assembly comprises a slide block, an elastic piece and a limiting pin, the slide block is slidably mounted in a lateral slide cavity of the mounting plate through the elastic piece, and the limiting pin is arranged in the lateral slide cavity of the mounting plate. And the limiting pin is rotatably arranged at the end part of the sliding block. The novel weighing apparatus weighing platform rapid installation structure can realize rapid alignment and convenient installation, does not need bolt fastening, improves dismounting efficiency and repeated positioning precision, is stable and reliable in structure, and is suitable for frequent dismounting occasions.

This utility model discloses a self-cleaning tap for blind hole machining, including a support frame, a transmission rod, a tapping mechanism, and an angle adjustment mechanism. The transmission rod is rotatably connected to the support frame, the tapping mechanism is mounted on the transmission rod, and the angle adjustment mechanism is mounted on the support frame. This utility model solves the problems of insufficient precision and cumbersome operation in traditional motor-driven angle adjustment by setting up an angle adjustment mechanism and, through the coordinated mechanism of the ratchet and pawl linkage structure and the cam rotation within the angle adjustment mechanism. The ratchet and pawl structure, through its mechanical hard-limiting characteristics, ensures that each angle adjustment stops precisely at 90°, eliminating gear backlash errors or inertial overshoot caused by direct motor drive. Furthermore, the linkage design of the cam-driven pawl further enhances the repeatability and positioning accuracy of angle switching, avoiding thread machining quality defects caused by angle deviations in traditional taps. It is simple, efficient, and practical.