Positioning detection mechanism for visual system

Abstract

The utility model relates to a positioning detection mechanism for a visual system, which is provided with a working platform and a positioning plate, a circular sliding rail is arranged on the positioning plate, an arc-shaped sliding block is arranged on the circular sliding rail, a mounting plate is fixedly arranged on the arc-shaped sliding block, a circular rack is arranged on the positioning plate, and a driving motor is arranged on the mounting plate. A driving gear is arranged at the output end of the driving motor, a detection camera and a detection light source are arranged on the mounting plate, a positioning assembly is arranged on the working platform, and the positioning assembly comprises a first motor, a moving plate, a first lifting air cylinder, a lifting plate, a first air cylinder, a mounting block, a second air cylinder and a positioning pressing plate. The mounting plate drives the driving gear through the driving motor, the arc-shaped sliding block is in sliding fit with the circular sliding rail, and the driving gear is in transmission fit with the circular rack and is arranged on the positioning plate in a sliding mode. The detection camera shoots and detects workpieces located between the positioning pressing plates through sliding fit of the mounting plate and the positioning plate. The device is ingenious in structure, efficient and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the detection field for visual system especially relates to a kind of positioning detection mechanism for visual system. BACKGROUND

[0002] The detection device of visual system is a kind of device using industrial camera to replace human eye to identify, measure corresponding need to detect article, the target photographed by visual system is converted into image signal and is handled after corresponding, and it is compared with the qualified product data inputed and makes corresponding detection, the visual system can replace artificial to complete whether there is scratch, crack and depression etc. on the surface of article detection, improve the production efficiency of the article produced.

[0003] The detection device of visual system needs to ensure the stability of the article to be detected when in use, and then improve the accuracy of the detection data of the article to be detected by the detection device, accurately obtain the detection data, the existing workpiece is generally clamped and positioned by artificial when detecting, the stability of the workpiece during detection cannot be guaranteed, and the workpiece cannot be comprehensively detected, which greatly affects the detection quality and is very inconvenient. SUMMARY

[0004] The utility model aims at providing a kind of positioning detection mechanism for visual system, clever structure, can realize the stable positioning of workpiece, and the overall shooting and detection of workpiece, convenient and practical.

[0005] The utility model discloses a technical scheme for realizing the purpose is: the utility model has work platform and the positioning plate fixed on work platform, be equipped with circular slide rail on the positioning plate, be equipped with arc slide block on the circular slide rail, be equipped with mounting panel fixedly on the arc slide block, be equipped with circular rack coaxial with circular slide rail on the positioning plate, be equipped with drive motor fixedly on the mounting panel, the output of drive motor is equipped with the drive gear that can be adapted with circular rack, be equipped with detection camera and detection light source that cooperates with detection camera on the mounting panel, be equipped with the positioning assembly that can position work on work platform, positioning assembly includes the first motor fixed on work platform, the moving plate slidingly arranged on work platform under the drive of first motor, the first lifting cylinder fixed on the moving plate, the lifting plate fixed on the telescopic end of first lifting cylinder, the first cylinder opposite setting on the lifting plate, the mounting block fixed on the telescopic end of each first cylinder, the second cylinder fixed on each mounting block and the positioning pressing plate fixed on the telescopic end of each second cylinder, the telescopic direction of first cylinder is perpendicular to the positioning plate, the telescopic direction of second cylinder is parallel to the moving direction of moving plate, and the lifting plate is lifted through the drive of first motor to moving plate and the drive of first lifting cylinder, and each positioning pressing plate is pressed to work piece through the drive of first cylinder to mounting block and the drive of second cylinder, the mounting panel is slidingly arranged on the positioning plate through the drive of drive motor to drive gear, the sliding cooperation of arc slide block and circular slide rail and the transmission cooperation of drive gear and circular rack, the detection camera is photographed and detected to the work piece between each positioning pressing plate through the sliding cooperation of mounting panel and positioning plate.

[0006] Further, the positioning pressing plates of the telescopic ends of each second cylinder are opposite, and each positioning pressing plate is provided with a pressing pad.

[0007] Further, the work platform is provided with first slide rails arranged in parallel, the bottom of the moving plate is fixed with a plurality of first sliding blocks adapted to the first slide rails, the bottom of the moving plate is fixed with a connecting block, the output end of the first motor is fixed with a drive screw, the other end of the drive screw is rotatably connected to the work platform, the connecting block is provided with screw holes adapted to the drive screw, and the moving plate is slidingly connected to the work platform through the drive of the first motor to the drive screw, the thread cooperation of the drive screw and the screw holes on the connecting block, and the cooperation of each first sliding block and the first slide rail.

[0008] Further, the second lifting cylinder is fixed on the mounting plate, the extension direction of the second lifting cylinder is perpendicular to the positioning plate, a connecting plate is fixed on the extension end of the second lifting cylinder, a second motor is fixed on the connecting plate, a rotating plate is fixed on the output end of the second motor, a third cylinder is fixed on the rotating plate, an adjusting plate is fixed on the extension end of the third cylinder, the detection camera and the detection light source are fixed on the adjusting plate, a plurality of positioning sliding rods are fixed on the adjusting plate, a plurality of positioning sliding holes matched with the positioning sliding rods are arranged on the rotating plate, and the adjusting plate is slidably connected with the rotating plate through the driving of the third cylinder and the cooperation of the positioning sliding rods and the positioning sliding holes.

[0009] Further, the adjusting plate is further provided with a protective cover, the adjusting plate is provided with an embedding groove for inserting the adjusting plate, the adjusting plate is provided with a lock hole communicated with the embedding groove, a lock pin is arranged in the lock hole, the protective cover is provided with a connecting hole for the lock pin to pass through, and the lock pin is fixedly connected with the adjusting plate after sequentially passing through the lock hole and the connecting hole after the protective cover is inserted into the embedding groove.

[0010] Further, the bottom of the working platform is fixedly provided with a rotating motor, the output end of the rotating motor is fixedly provided with a rotating platform, the rotating platform is arranged between the moving plate and the positioning plate, a plurality of leaning components are arranged on the rotating platform along the axis of the rotating platform, and a jacking component for jacking and overturning the workpiece is arranged on the rotating platform, the leaning component comprises a leaning cylinder fixed on the rotating platform, a first sliding groove arranged on the rotating platform, a second sliding block slidably arranged in the first sliding groove under the driving of the leaning cylinder, a rotating seat fixed on the second sliding block, and a leaning plate rotatably connected to the rotating seat, the extension direction of the first sliding groove is perpendicular to the axis of the rotating platform, the jacking component comprises a jacking groove arranged on the rotating platform, a jacking cylinder fixed in the jacking groove, and a jacking rod fixed on the extension end of the jacking cylinder, the jacking rod jacks and overturns the workpiece under the driving of the jacking cylinder, the rotating axis of each leaning plate is perpendicular to the rotating platform, and the rotating axis of each leaning plate is perpendicular to the axis of the rotating platform, and each leaning plate leans on the workpiece on the rotating platform under the driving of the second sliding block by the leaning cylinder and the cooperation of the second sliding block and the first sliding groove.

[0011] Further, the rotating seat is provided with a rotating hole, both ends of the leaning plate are provided with rotating shafts, torsional springs are sleeved on the rotating shafts, and both ends of the torsional springs are fixedly connected with the rotating hole and the rotating shafts.

[0012] Further, the leaning plate comprises a leaning part and a guide part arranged on the upper end of the leaning part, one end of the guide part is integrally formed with the leaning part, and the other end of the guide part is deflected to the side of the rotating seat.

[0013] The utility model discloses have positive effect: (1) the utility model discloses through setting the locating plate on the work platform, the mounting plate on the locating plate is connected in the locating plate along the circular slide rail sliding through the cooperation of driving gear and circular rack and the cooperation of arc -shaped sliding block and circular slide rail, and the detection camera on the mounting plate carries out comprehensive shooting and detection to work piece through the cooperation with detection light source, set the locating assembly on the work platform, and the driving of first lift cylinder is lifted to the driving of first motor to mobile plate, and each locating pressing plate carries out the pressure to work piece through the driving of first cylinder to mounting block and the driving of second cylinder, through the driving of first cylinder to mounting block and the driving of second cylinder to locating pressing plate, on one hand can extend the lifting plate to work piece is placed at the axis of circular slide rail, thereby avoiding the collision or interference of detection camera and detection light source in the process of mounting plate movement with locating pressing plate, on the other hand can guarantee the stability of work piece and can guarantee the comprehensiveness and high efficiency of shooting to work piece, clever structure, efficient and convenient.

[0014] (2) the utility model discloses through setting the pressure pad on each locating pressing plate, through each pressure pad guarantees the stability and firmness of each locating pressing plate to work piece pressure, convenient and practical.

[0015] (3) the utility model discloses through the rotation of driving screw rod that first motor drives, and the cooperation of first sliding block and first slide rail through the cooperation of driving screw rod and connecting block screw hole on the mobile plate guarantees the stability of mobile plate in the process of moving and the smoothness of mobile plate in the process of moving, efficient and convenient.

[0016] (4) the utility model discloses through setting second lift cylinder on the mounting plate, setting second motor on the connecting plate, and the rotation of rotating plate that second motor drives, and the driving of third cylinder through the cooperation of positioning slide and positioning slide hole, adjusting plate is slidably arranged on the rotating plate, and then guarantee that detection camera and detection light source can be fully adapted according to the size and shape of work piece, can comprehensively and efficiently shoot and detect work piece, convenient and practical.

[0017] (5) the utility model discloses through setting the protective cover on the adjusting plate, and the protective cover can be fixed on the adjusting plate through the cooperation of lock pin and lock hole and connecting hole, thereby protecting detection light source and detection camera, and the protective cover can be removed in use, efficient and convenient.

[0018] (6) the utility model discloses through setting multiple pressure assembly and jacking assembly on the rotating platform, and the cooperation of jacking assembly and rotating platform can turn over work piece, thereby switching the face that needs to be detected on work piece, and the work piece is stably pressed through pressure assembly after turning over through jacking assembly, thereby guaranteeing the stability and safety of work piece in the process of rotating platform rotation.

[0019] (7) The utility model discloses a rotating hole is set up on the rotating seat, and a rotating shaft is set up on the pressing plate, and the pressing plate is pressed on the workpiece stably through the continuous force of torsion spring and the cooperation of the rotating shaft and the rotating hole, which is convenient and practical.

[0020] (8) The utility model discloses the cooperation of the pressing plate is set up into the pressing part and the guide part, and the guide part can guide the workpiece into each pressing part, thereby stably and firmly pressing the workpiece, which is efficient and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the content of the utility model more easily be clearly understood, the following according to specific embodiment and combining with the drawings, the utility model is further detailed, wherein

[0022] Figure 1 It is whole structural schematic diagram of positioning detection mechanism for visual system in the utility model;

[0023] Figure 2 It is sectional view of the connecting structure of first air cylinder and second air cylinder in the utility model;

[0024] Figure 3 It is whole structural schematic diagram of pressing assembly in the utility model;

[0025] Figure 4 It is connecting structure schematic diagram of rotating seat and pressing plate in the utility model;

[0026] Figure 5 It is Figure 4 It is sectional view of B place in the utility model.

[0027] Figure 6 It is sectional view of the whole structure of jacking assembly on rotating platform in the utility model;

[0028] Figure 7 It is sectional view of the connecting structure of rotating plate and adjusting plate in the utility model;

[0029] Figure 8 It is Figure 7 It is sectional view of B place in the utility model. DETAILED DESCRIPTION

[0030] See Figures 1 to 8The utility model discloses a positioning assembly 3 is equipped on the work platform 1, and the positioning assembly 3 includes the first motor 31 fixed on the work platform 1, the moving plate 32 slidingly arranged on the work platform 1 under the drive of the first motor 31, the first lifting cylinder 33 fixed on the moving plate 32, the lifting plate 34 fixed on the telescopic end of the first lifting cylinder 33, the first cylinder 35 oppositely arranged on the lifting plate 34, the mounting block 36 fixed on the telescopic end of each first cylinder 35, the second cylinder 37 fixed on each mounting block 36 and the positioning pressing plate 38 fixed on the telescopic end of each second cylinder 37, the telescopic direction of the first cylinder 35 is vertically arranged with the positioning plate 2, and the telescopic direction of the second cylinder 37 is parallelly arranged with the moving direction of the moving plate 32, the lifting plate 34 is lifted through the drive of the first motor 31 to the moving plate 32 and the drive of the first lifting cylinder 33, each positioning pressing plate 38 is pressed to work piece through the drive of the first cylinder 35 to the mounting block 36 and the drive of the second cylinder 37, the mounting plate 23 is slidingly arranged on the positioning plate 2 through the drive of the drive motor 28 to the drive gear 27, the sliding cooperation of the arc-shaped sliding block 20 and the circular slide rail 21 and the transmission cooperation of the drive gear 27 and the circular rack 22, the detection camera 6 is photographed and detected to work piece between each positioning pressing plate 38 through the sliding cooperation of the mounting plate 23 and the positioning plate 2.

[0031] The positioning pressing plate 38 of each second cylinder 37 is oppositely arranged, and each positioning pressing plate 38 is equipped with a pressing pad 39.

[0032] The work platform 1 is equipped with the first slide rail 11 parallelly arranged, the bottom of the moving plate 32 is fixedly equipped with a plurality of first sliding blocks 322 adapted with each first slide rail 11, the bottom of the moving plate 32 is fixedly equipped with a connecting block 321, the output end of the first motor 31 is fixedly equipped with a drive screw 311, the other end of the drive screw 311 is rotatably connected on the work platform 1, the connecting block 321 is equipped with a screw hole adapted with the drive screw 311, and the moving plate 32 is slidingly connected on the work platform 1 through the drive of the first motor 31 to the drive screw 311, the thread cooperation of the drive screw 311 and the screw hole on the connecting block 321 and the cooperation of each first sliding block 322 and the first slide rail 11.

[0033] The mounting plate 23 is fixedly provided with a second lifting cylinder 231, the extension direction of the second lifting cylinder 231 is perpendicular to the positioning plate 2, the extension end of the second lifting cylinder 231 is fixedly provided with a connecting plate 24, the connecting plate 24 is fixedly provided with a second motor 241, the output end of the second motor 241 is fixedly provided with a rotating plate 25, the rotating plate 25 is fixedly provided with a third cylinder 250, the extension end of the third cylinder 250 is fixedly provided with an adjusting plate 26, the detection camera 6 and the detection light source 7 are both fixedly installed on the adjusting plate 26, the adjusting plate 26 is fixedly provided with a plurality of positioning sliding rods 261, the rotating plate 25 is provided with a plurality of positioning sliding holes 251 matched with the positioning sliding rods 261, and the adjusting plate 26 is slidably connected with the rotating plate 25 through the driving of the third cylinder 250 and the cooperation of the positioning sliding rods 261 and the positioning sliding holes 251.

[0034] The adjusting plate 26 is further provided with a protective cover 8, the adjusting plate 26 is provided with an embedding groove 262 for inserting the adjusting plate 26, the adjusting plate 26 is provided with a lock hole 263 in communication with the embedding groove 262, a locking pin 29 is arranged in the lock hole 263, the protective cover 8 is provided with a connecting hole 81 for the locking pin 29 to pass through, and the locking pin 29 is fixedly connected with the adjusting plate 26 after sequentially passing through the lock hole 263 and the connecting hole 81 after the protective cover 8 is inserted into the embedding groove 262.

[0035] The bottom of the working platform 1 is fixedly provided with a rotating motor 12, the output end of the rotating motor 12 is fixedly provided with a rotating platform 13, the rotating platform 13 is arranged between the moving plate 32 and the positioning plate 2, the rotating platform 13 is provided with a plurality of pressing assemblies 4 distributed on the rotating platform 13 along the axis line of the rotating platform 13 and a jacking assembly 5 capable of jacking and overturning the workpiece, the pressing assembly 4 comprises a pressing cylinder 41 fixed on the rotating platform 13, a first sliding groove 42 arranged on the rotating platform 13, a second sliding block 43 slidably arranged in the first sliding groove 42 under the driving of the pressing cylinder 41, a rotating seat 44 fixed on the second sliding block 43, and a pressing plate 45 rotatably connected to the rotating seat 44, the extension direction of the first sliding groove 42 is perpendicular to the axis line of the rotating platform 13, the jacking assembly 5 comprises a jacking groove 51 arranged on the rotating platform 13, a jacking cylinder 52 fixed in the jacking groove 51, and a jacking rod 53 fixed to the extension end of the jacking cylinder 52, the jacking rod 53 jacks and overturns the workpiece through the driving of the jacking cylinder 52, the rotating axis of each pressing plate 45 is perpendicular to the rotating platform 13, and the rotating axis of each pressing plate 45 is perpendicular to the axis line of the rotating platform 13, and each pressing plate 45 presses the workpiece on the rotating platform 13 through the driving of the second sliding block 43 by the pressing cylinder 41 and the cooperation of the second sliding block 43 and the first sliding groove 42.

[0036] The rotating seat 44 is provided with a rotating hole 441, and both ends of the pressure plate 45 are provided with rotating shafts 451. Each rotating shaft 451 is fitted with a torsion spring 452, and the two ends of the torsion spring 452 are fixedly connected to the rotating hole 441 and the rotating shaft 451 respectively.

[0037] The pressure plate 45 includes a pressure part 453 and a guide part 454 disposed on the upper end of the pressure part 453. One end of the guide part 454 is integrally formed with the pressure part 453, and the other end of the guide part 454 is deflected toward the rotating seat 44.

[0038] The working principle of this utility model is as follows: During use, the operator can first place the workpiece on the rotating platform 13. Each pressure plate 45, driven by the pressure cylinder 41, presses and positions the workpiece on the rotating platform 13 through the cooperation of the first slider 322 and the first slide groove 42. After the workpiece is positioned, each pressure plate 45 disengages from the workpiece. At the same time, the lifting plate 34 is lifted by the first motor 31 driving the moving plate 32 and the first lifting cylinder 33. Each positioning pressure plate 38 is driven by the first cylinder 35 driving the mounting block 36 and the second cylinder 37. The drive grips and lifts the workpiece. When the workpiece is transferred to the axis of the circular slide rail 21 or when the projection of the workpiece on the positioning plate 2 is within the circular slide rail 21, the lifting plate 34 stops lifting. The detection cameras 6 and detection light sources 7 on the adjustment plate 26 adjust the shooting angle according to the position and size of the workpiece through the drive of the second lifting cylinder 231 and the connecting plate 24, and the drive of the rotating plate 25 by the second motor 241 on the connecting plate 24. The focus of the shooting camera is adjusted through the drive of the adjustment plate 26 by the third cylinder 250, and the cooperation of the positioning slide rod 261 and the positioning slide hole 251, thereby ensuring the clarity of the shooting.

[0039] After the workpiece is photographed, the workpiece can be placed on the rotating platform 13 by driving the lifting plate 34 through the first lifting cylinder 33. During the process of placing it on the rotating platform 13, the workpiece is guided by the guide part 454 to the pressing part 453, and the workpiece on the rotating platform 13 is initially positioned. The workpiece can be reversed by the cooperation of the lifting component 5 and the rotating platform 13. During the reversal process, the workpiece can be flipped by driving the lifting rod 53 through the lifting cylinder 52, or the workpiece can be positioned by each pressing plate 45 and then rotated 90° or 180° by the rotating platform 13. After the pressing plates 45 are separated from the workpiece, the workpiece can be flipped by driving the lifting rod 53 through the lifting cylinder 52. After the workpiece is flipped, the workpiece is gripped, lifted and inspected by the positioning plate 38, thus ensuring the comprehensiveness and efficiency of the workpiece in the inspection process. The structure is ingenious, efficient and convenient.

[0040] The above-described specific embodiments further specifically describe the purpose, technical solutions and beneficial effects of the present application, and it should be understood that the above-described specific embodiments are merely examples of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A positioning detection mechanism for a vision system, having a work platform, and a positioning plate fixed on the work platform, characterized in that: The positioning plate is provided with a circular slide rail, the circular slide rail is provided with an arc-shaped sliding block which is slidably arranged on the circular slide rail, the arc-shaped sliding block is provided with a mounting plate which is fixedly arranged on the arc-shaped sliding block, the positioning plate is provided with a circular rack which is coaxially arranged with the circular slide rail, the mounting plate is provided with a driving motor which is fixedly arranged on the mounting plate, the driving motor is provided with a driving gear which is fixedly arranged on the output end of the driving motor and is adapted to the circular rack, the mounting plate is provided with a detection camera and a detection light source which cooperates with the detection camera, the working platform is provided with a positioning assembly which can position the work, the positioning assembly comprises a first motor which is fixedly arranged on the working platform, a moving plate which is slidably arranged on the working platform under the driving of the first motor, a first lifting cylinder which is fixedly arranged on the moving plate, a lifting plate which is fixedly arranged on the extension end of the first lifting cylinder, a first cylinder which is oppositely arranged on the lifting plate, a mounting block which is fixedly arranged on the extension end of each first cylinder, a second cylinder which is fixedly arranged on each mounting block, and a positioning pressing plate which is fixedly arranged on the extension end of each second cylinder, the extension direction of the first cylinder is perpendicular to the positioning plate, the extension direction of the second cylinder is parallel to the moving direction of the moving plate, the lifting plate is lifted by the driving of the moving plate by the first motor and the driving of the first lifting cylinder, each positioning pressing plate is pressed against the workpiece by the driving of the mounting block by the first cylinder and the driving of the second cylinder, the mounting plate is slidably arranged on the positioning plate by the driving of the driving gear by the driving motor, the sliding cooperation of the arc-shaped sliding block and the circular slide rail, and the transmission cooperation of the driving gear and the circular rack, the detection camera is slidably arranged on the positioning plate by the mounting plate and the positioning plate, and the detection camera can shoot and detect the workpiece between each positioning pressing plate.

2. A position detection mechanism for a vision system according to claim 1, characterized in that: The positioning pressing plates at the extension ends of the second cylinders are oppositely arranged, and each positioning pressing plate is provided with a pressing pad.

3. A position detection mechanism for a vision system according to claim 2, wherein: The working platform is provided with first slide rails which are arranged in parallel, the bottom of the moving plate is fixedly provided with a plurality of first sliding blocks which are adapted to the first slide rails, the bottom of the moving plate is fixedly provided with a connecting block, the output end of the first motor is fixedly provided with a driving screw rod, the other end of the driving screw rod is rotatably connected to the working platform, the connecting block is provided with screw holes which are adapted to the driving screw rod, and the moving plate is slidably connected to the working platform by the driving of the driving screw rod by the first motor, the threaded cooperation of the driving screw rod and the screw holes on the connecting block, and the cooperation of each first sliding block and the first slide rail.

4. A position detection mechanism for a vision system according to claim 3, wherein: The mounting plate is fixedly provided with a second lifting cylinder, the extension direction of the second lifting cylinder is perpendicular to the positioning plate, the extension end of the second lifting cylinder is fixedly provided with a connecting plate, the connecting plate is fixedly provided with a second motor, the output end of the second motor is fixedly provided with a rotating plate, the rotating plate is fixedly provided with a third cylinder, the extension end of the third cylinder is fixedly provided with an adjusting plate, the detection camera and the detection light source are fixedly arranged on the adjusting plate, the adjusting plate is fixedly provided with a plurality of positioning sliding rods, the rotating plate is provided with a plurality of positioning sliding holes which are adapted to the positioning sliding rods, and the adjusting plate is slidably connected to the rotating plate by the driving of the third cylinder and the cooperation of each positioning sliding rod and the positioning sliding hole.

5. A position detection mechanism for a vision system according to claim 4, wherein: The adjusting plate is further provided with a protective cover, the adjusting plate is provided with an embedding slot for inserting the adjusting plate, the adjusting plate is provided with a lock hole in communication with the embedding slot, the lock hole is provided with a lock pin, the protective cover is provided with a connecting hole for the lock pin to pass through, and the lock pin is fixedly connected with the adjusting plate after passing through the lock hole and the connecting hole after the protective cover is inserted into the embedding slot.

6. A position detection mechanism for a vision system according to claim 5, wherein: The bottom of the working platform is fixedly provided with a rotating motor, the output end of the rotating motor is fixedly provided with a rotating platform, the rotating platform is arranged between the moving plate and the positioning plate, the rotating platform is provided with a plurality of pressure-against assemblies and jacking assemblies for jacking and overturning the workpiece, the pressure-against assemblies are arranged on the rotating platform along the axis of the rotating platform, the pressure-against assembly comprises a pressure-against cylinder fixed on the rotating platform, a first sliding groove arranged on the rotating platform, a second sliding block slidingly arranged in the first sliding groove under the drive of the pressure-against cylinder, a rotating seat fixed on the second sliding block, and a pressure-against plate rotatably connected to the rotating seat, the extension direction of the first sliding groove is perpendicular to the axis of the rotating platform, the jacking assemblies comprise a jacking groove arranged on the rotating platform, a jacking cylinder fixed in the jacking groove, and a jacking rod fixed to the telescopic end of the jacking cylinder, the jacking rod is driven by the jacking cylinder to overturn the workpiece, the rotating axis of each pressure-against plate is perpendicular to the rotating platform, and the rotating axis of each pressure-against plate is perpendicular to the axis of the rotating platform, each pressure-against plate is pressed against the workpiece on the rotating platform by the drive of the pressure-against cylinder on the second sliding block and the cooperation of the second sliding block and the first sliding groove.

7. A position detection mechanism for a vision system according to claim 6, wherein: The rotating seat is provided with a rotating hole, both ends of the pressure-against plate are provided with rotating shafts, torsional springs are sleeved on each rotating shaft, and both ends of the torsional spring are fixedly connected to the rotating hole and the rotating shaft, respectively.

8. A position detection mechanism for a vision system according to claim 7, wherein: The pressure-against plate comprises a pressure-against portion and a guide portion arranged on the upper end of the pressure-against portion, one end of the guide portion is integrally formed with the pressure-against portion, and the other end of the guide portion is deflected to the side of the rotating seat.

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