111results about How to "High repeat positioning accuracy" patented technology

The invention discloses a heavy-load automatic guided vehicle repeated positioning precision self-correction method and device, and the method comprises the steps: obtaining AGV operation state data and environment data collected by different sensors, and forming a multi-source data set; preprocessing the multi-source data set, constructing an environment model, and calculating attitude information in real time; based on an environment model, determining a positioning error and carrying out error modeling, correcting the weight of each sensor, each filter parameter, AGV position information and AGV attitude information in real time, and optimizing an AGV advancing path; fusing the multi-source data set by using an improved Kalman filtering algorithm, optimizing a Kalman filter in real time, and correcting a positioning error so as to further correct AGV position information; correcting an AGV advancing path in real time according to the image data of the surrounding environment of the AGV; and a regular correction mechanism is set, and the AGV is controlled to regularly execute a specified correction action. According to the method, the repeated positioning precision is improved, and stable operation of the AGV in a dynamic environment is ensured.

The invention relates to a wafer centering and positioning device, a transmission device, thinning equipment and a centering method. The wafer centering and positioning device comprises a centering base disc which is provided with linear guide rails which are distributed in the circumferential direction with the centering center of a wafer as the circle center and extend in the radial direction; the centering rotating disc is arranged below the centering base disc and can rotate relative to the centering base disc, the rotating center of the centering rotating disc is aligned with the centering center of the wafer, and the centering rotating disc is provided with an involute spiral guide rail; the centering stop block is provided with a stop column extending out of the top face of the centering base disc, the centering stop block is installed on the involute spiral guide rail and the linear guide rail in a sliding mode, when the centering rotary disc rotates, the centering stop block can slide along the involute spiral guide rail and the linear guide rail at the same time, and the stop column is arranged on each circumferential angle of the centering rotary disc. And the center distances from the bumping posts to the rotating center are constant and equal, and the bumping posts are used for pushing the wafer to a centering position. Center positioning of wafers of different sizes can be achieved, the whole wafer center positioning device is simple and convenient, operation is stable, and repeated positioning precision is high.

The invention relates to the technical field of laser welding, in particular to a positioning tool for laser welding, which comprises a platform, a motor is mounted on the outer wall of one side of the platform, one end of an output shaft of the motor is connected with a two-way screw through a coupler, and the outer walls of the two sides of the two-way screw are connected with a sliding frame through threads. A first sliding groove is formed in the outer wall of one side of the sliding frame, a clamping frame is slidably connected to the inner wall of the first sliding groove, a second sliding groove is formed in the outer wall of one side of the top of the clamping frame, a locking frame is slidably connected to the inner wall of the second sliding groove, and locking plates are fixedly connected to the outer walls of the two sides of the bottom end of the locking frame. The clamping plate pushes the bottom plate, the limiting plate rotates to be horizontal to limit the top of a workpiece under the linkage effect, and after the limiting plate rotates, the locking structure automatically slides downwards to be inserted into the corresponding position of the clamping structure for locking under the gravity effect, so that the clamping and positioning effect is improved, the machining error is reduced, and the repeated positioning precision is improved; and the positioning efficiency of the laser welding positioning tool is improved.

The invention relates to a universal mandrel groove grinding device, in particular to a universal mandrel adjustable groove grinding device and a groove grinding method, and aims at solving the technical problems that when an existing clamp is used for grinding sliding grooves of a universal mandrel, it is difficult to guarantee that the included angle between the groove and the central axis of the mandrel meets the technical requirement, indexing of the three sliding grooves is inaccurate, and the repeated positioning precision is low. The device comprises a wedge-shaped bottom plate, and a first clamping mechanism, an indexing mechanism, a supporting mechanism and a second clamping mechanism which are arranged on the wedge-shaped bottom plate, the first clamping mechanism and the second clamping mechanism are used for positioning the universal mandrel to be subjected to groove grinding from the two ends in the axial direction correspondingly. The supporting mechanism is used for supporting and fixing a universal mandrel of a to-be-ground groove; the indexing mechanism comprises a tooth aligning pin seat, a tooth aligning pin and an indexing ring; the tooth aligning pin is mounted on the tooth aligning pin seat, and positioning teeth are arranged at the top of the tooth aligning pin; a plurality of jackscrews are arranged on the indexing ring; a positioning groove is formed in the peripheral surface of the indexing ring; and the positioning teeth are matched with the positioning grooves so as to realize circumferential positioning of the universal mandrel to be subjected to groove grinding.

The invention provides a reflector switching mechanism and an assembling and adjusting method, and relates to the technical field of optical sensor assembling and adjusting. The mechanism comprises a switching reflecting mirror, a switching reflecting mirror base used for installing the switching reflecting mirror, a bearing assembly used for providing a rotating shaft system for the switching reflecting mirror, a reflecting mirror switching bearing base used for fixing the bearing assembly, and a driven gear arranged at the shaft end of the switching reflecting mirror base in a sleeving mode. The switching gear limiting block is mounted on the driven gear; and the adsorption assembly is used for adjusting the contact position of the switching gear limiting block. The switching reflector mechanism provided by the invention can realize switching of light paths, has relatively high repeated positioning precision, and ensures the stability of an optical system.

The invention discloses a parallel multi-head three-dimensional printer tool head lifting structure and a height difference measuring method, and relates to the technical field of three-dimensional printing, the parallel multi-head three-dimensional printer tool head lifting structure comprises a tool head, a back plate and a lifting assembly, the side face of the tool head is slidably assembled on the back plate, the lifting assembly comprises a driving piece and a connecting piece, and the driving piece is used for driving the connecting piece to retract and release; the connector is used for driving the tool head to lift; and a photoelectric switch is arranged on the back plate. A traditional short-range rigid driving scheme is replaced on the premise that the precision is guaranteed, the motion quality of the tool head is reduced, and help is provided for improving the motion speed and the printing quality. In addition, the height difference measuring method based on the scheme is simplified, the measuring precision and the repeated positioning precision are improved, and the reliability is greatly improved.

The invention discloses a vertical machining center provided with a chip cleaning mechanism, and relates to the technical field of vertical machining centers, the vertical machining center comprises a shell, a vertical machine tool is fixedly connected in the shell, a metal machining table is horizontally and slidably connected to the vertical machine tool, and a rail chip removing mechanism is arranged between the metal machining table and the vertical machine tool; in the process of controlling the metal machining table to horizontally move out a machined metal workpiece, the portal frame can be synchronously driven to drive the air injection box and the spray head to move reversely, cuttings and cutting fluid remaining on the surface of the vertical machine tool are blown away in time, contact between a guide rail on the surface of the vertical machine tool and the cuttings can be effectively reduced, and the service life of the vertical machine tool is prolonged. Therefore, the abrasion degree of the guide rail is reduced, the original precision of the guide rail is kept, the service life of the guide rail is prolonged, the surface of the vertical machine tool can be kept clean, cuttings are prevented from being accumulated on the guide rail, the positioning precision and repeated positioning precision of the vertical machine tool are improved, and the size precision and shape precision of metal machining workpieces are ensured.

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 an automatic positioning clamp for Joule graphene thermal flash evaporation equipment, and relates to the technical field of graphene preparation, the automatic positioning clamp comprises a cross slide rail platform, a slide block, a transverse slide rail platform, a clamp, a laser positioning mechanism, a quartz tube diameter identification system, an information processing module and a control module; and the functions of positioning the quartz tubes with different diameters and precisely matching the quartz tubes with the electrodes are realized. Therefore, the problems that the automation degree of current equipment is low, the preparation process depends on manual operation, the efficiency is low, the requirement of large-scale production is difficult to meet, and the design of the current equipment has limitation in the aspect of pipe diameter adjustment and cannot adapt to the preparation requirements of graphene materials with different pipe diameters are solved. In addition, automation and flexibility are achieved through the cross-shaped sliding rail mechanism, the cross-shaped sliding rail mechanism has the advantages of being high in flexibility, stability and repeated positioning precision, convenient and fast to operate and the like, and the problem that the repeated positioning precision is poor due to multiple times of switching is solved.

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.

The present application provides a double-screw pre-tightened reverse planetary roller screw pair with involute and cycloid teeth, which relates to the technical field of precision heavy-load screw transmission, including a first screw and a second screw connected coaxially, the first screw meshing with a first planetary roller of a first bracket, the tooth profile of the first screw and the first planetary roller in a normal plane of a thread raceway is an involute, the second screw meshing with a second planetary roller of a second bracket, the tooth profile of the second screw and the second planetary roller in a normal plane of a thread raceway is an involute, the internal thread of a nut is screwed with the external thread of the first planetary roller and the second planetary roller, the normal tooth profile of the nut is a cycloid, which is a double cycloid spiral surface, and a gasket is provided between the first screw assembly and the second screw assembly, and the gap of a traditional reverse planetary roller screw pair can be eliminated by adjusting the thickness of the gasket, thereby greatly improving the repeatability accuracy and rigidity of the planetary roller screw pair.

The utility model discloses a small-conical-surface sawtooth-shaped threaded connection structure of an industrial cutter, and relates to the field of cutter mounting structures, the small-conical-surface sawtooth-shaped threaded connection structure comprises a handle part and a cutter head, a threaded mounting hole is formed in the end, close to the cutter head, of the handle part, the threaded mounting hole comprises a threaded hole and a conical hole, and the conical hole is coaxially formed in the end, close to the cutter head, of the threaded hole; a threaded connecting part is arranged at the end, close to the handle part, of the tool bit and comprises a screw and a conical positioning table, the screw is in threaded fit with the threaded hole, and the side face of the conical positioning table is attached to the hole wall of the conical hole after the handle part and the tool bit are installed and fixed; the end, close to the tool bit, of the handle part is arranged to be an abutting face perpendicular to the axis of the threaded installation hole, the end face, close to the threaded connection part, of the tool bit is arranged to be an abutting face perpendicular to the axis of the threaded connection part, and the two abutting faces are attached after the handle part and the tool bit are installed and fixed. And threads on the threaded hole and the screw rod are saw-tooth-shaped threads. The device has the effects of being high in repeated positioning precision and convenient to disassemble.

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 utility model relates to the technical field of vacuum equipment, in particular to a vacuum delivery device and a vacuum treatment system. The vacuum delivery device comprises a vacuum fixing cavity, a corrugated pipe, a rear end assembly, a guide rail, a loading assembly and a linear driving assembly. The vacuum fixing cavity comprises a front end flange opening and a rear end flange opening. The corrugated pipe comprises a front-end flange and a rear-end flange, and the front-end flange of the corrugated pipe is in vacuum sealing connection with the rear-end flange opening of the vacuum fixing cavity. And the front end part of the rear-end assembly is in vacuum sealing connection with a rear-end flange of the corrugated pipe. The guide rail penetrates through the vacuum fixing cavity and the corrugated pipe, and the rear end of the guide rail is fixedly connected with the rear end assembly. The loading assembly is connected with the front end of the guide rail. The linear driving assembly is connected with the corrugated pipe and used for driving the corrugated pipe to stretch to drive the rear end assembly and the guide rail to move.

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.

An intelligent robot camera gimbal in the field of autonomous mobile robot application technology includes a 3D camera, a camera fixing flange, a central rotating shaft, a pitch and roll mechanism, a yaw mechanism, a gimbal bracket, a gimbal fixing shell, a gimbal upper shell, a bottom fixing seat, and a controller; the yaw mechanism is arranged in the gimbal bracket and connected to the gimbal bracket ribs, the pitch and roll mechanism is arranged in the gimbal shell, and the yaw mechanism and the pitch and roll mechanism are connected through an upper connecting plate; the 3D camera is arranged on the upper part of the gimbal shell and connected to the top of the central rotating shaft through the camera fixing flange; the middle and lower parts of the central rotating shaft are arranged in the gimbal shell and connected to the pitch and roll mechanism. The present invention can enable the camera to perform pitch, roll, and yaw movements of the gimbal device at the same time, and use robot dynamics calculation to decouple the axes from each other, so as to achieve precise control of the gimbal movement, thereby obtaining a larger field of view and a clearer image.

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.