Machine vision detection device

Abstract

The invention discloses a machine vision detection device, belongs to the technical field of vision detection equipment, and aims to solve the problems that in the prior art, fixation of a workpiece needs to be frequently relieved, then the workpiece is turned over, and the workpiece is clamped and fixed again, so that operation is tedious, and efficiency is low. The positions of the four supporting plates are adjusted through the supporting assembly, then the supporting plates are used for supporting, a workpiece is placed at the upper ends of the supporting plates, then a second motor is used for driving a clamping plate to clamp the workpiece, and a first mounting base, a connecting rod and a second connecting base are matched to drive the workpiece to move upwards, so that the workpiece is gradually away from the supporting plates; a balancing weight drives a supporting plate to rotate due to the gravity factor, so that the supporting plate is vertically placed, the situation that a follow-up workpiece collides with the supporting plate during rotation is avoided, then the workpiece is detected through a holographic camera, and when other faces of the workpiece need to be detected, a third motor is directly started to drive a clamping plate to rotate, and then the workpiece is turned over rapidly; and the detection efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of visual inspection equipment, and in particular to a machine vision inspection device. Background Art

[0002] Machine vision inspection is a rapidly developing branch of artificial intelligence. Machine vision uses machines to replace human eyes for measurement and judgment. The machine vision system converts the captured target into an image signal through an image capture device and transmits it to a dedicated image processing system to detect the captured target.

[0003] Chinese patent document CN211785068U discloses a machine vision inspection device, including a base, both sides of the top of the base are fixedly connected with a boss, both sides of the top of the boss are respectively fixedly connected with a first vertical plate and a second vertical plate, the first vertical plate is internally threaded with a moving rod, the moving rod is internally threaded with a rotating rod, one side of the moving rod is movably connected with a fixed plate, which is convenient for fixing the product, one end of the rotating rod is movably connected with the second vertical plate through a first bearing embedded in the second vertical plate, the top of the base is fixedly connected with an L-shaped plate, the top of the L-shaped plate is fixedly installed with a motor, which is convenient for driving the holographic camera to move up and down, so as to more comprehensively visually inspect the product, and the top of the base is provided with a placement slot. Although the device realizes visual inspection, it has limitations. After the single-sided inspection of the workpiece is completed, the workpiece needs to be released, turned over, and then clamped again, which is cumbersome and inefficient.

[0004] Therefore, in order to solve such problems, we propose a machine vision inspection device. Summary of the invention

[0005] The object of the present invention is to provide a machine vision inspection device, aiming to solve the problem in the above-mentioned background technology that the workpiece needs to be frequently released, then turned over, and clamped again, making the operation cumbersome and inefficient.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a machine vision detection device comprises a base, a first mounting groove is formed at the upper end of the base, a second mounting groove is formed at the upper end of the base, the first mounting groove and the second mounting groove are communicated, a support assembly is arranged inside the base, a second motor is fixedly connected to the side wall of the base, a first bidirectional threaded rod is fixedly connected to the output end of the second motor, an end of the first bidirectional threaded rod away from the second motor passes through the first mounting groove, two moving blocks are threadedly connected to the side wall of the first bidirectional threaded rod located in the first mounting groove, the moving blocks are slidably connected to the inner wall of the first mounting groove, a first connecting seat is arranged on the upper end of each moving block, and a first connecting seat is fixedly connected to the side wall of the first connecting seat The first gear and the second gear are connected in a fixed manner inside the clamping seat, and the other end of the connecting shaft is fixedly connected to the clamping seat, and the other end of the connecting shaft is connected to the clamping seat.

[0007] Preferably, the upper end of the base is fixedly connected to a connecting plate, the upper end of the connecting plate is fixedly connected to a second mounting seat, a fifth mounting groove is provided on the side wall of the second mounting seat, a sliding groove is provided on the lower end of the second mounting seat, a rotating block is movably connected to the inner wall of the fifth mounting groove, the upper end of the rotating block is fixedly connected to a second connecting column, the upper end of the second connecting column is fixedly connected to a third gear, the side wall of the third gear is meshingly connected to a fourth gear, the fourth gear is positioned and rotatably connected inside the second mounting seat, the side wall of the fourth gear is meshingly connected to a rack, the lower end of the rack is fixedly connected to a moving seat, the moving seat is slidably connected to the inner wall of the sliding groove, the lower end of the moving seat is fixedly connected to an electric push rod, and the output end of the electric push rod is fixedly connected to a holographic camera.

[0008] Preferably, a third mounting groove is formed on the side wall of the second mounting groove, and baffles are fixedly connected to the two side walls of the second mounting groove, and the baffles are located below the third mounting groove, and the supporting assembly includes a first motor fixedly connected to the outer wall of the base, a rotating column is fixedly connected to the output end of the first motor, two first bevel gears are fixedly connected to the side wall of the rotating column, the side wall of the first bevel gear is meshingly connected to the second bevel gear, one end of the second bevel gear is fixedly connected to the second bidirectional threaded rod, the side wall of the second bidirectional threaded rod is threadedly connected to two sliders, the side wall of the slider is rotatably connected to the first connecting column, the first connecting column is slidably connected to the inner wall of the third mounting groove, one end of the first connecting column is fixedly connected to the support plate, and the side wall of the support plate is fixedly connected to the counterweight block.

[0009] Preferably, a threaded column is movably connected inside the first connecting seat, a first limit plate is fixedly connected to the side wall of the threaded column, the threaded column at the lower end of the first limit plate is threadedly connected to the moving block, and slots are provided on two non-adjacent side walls of the moving block, the lower end of the first connecting seat is fixedly connected to the second limit plate, and the second limit plate is slidably connected to the inner wall of the slot.

[0010] Preferably, a rotation groove is formed on the side wall of the clamping seat, and a limit ring is slidably connected to the inner wall of the rotation groove, and the limit ring is fixedly connected to the clamping plate.

[0011] Preferably, a fourth mounting groove is formed on the side wall of the connecting rod, a spring is fixedly mounted on the inner wall of the fourth mounting groove, and one end of the spring away from the connecting rod is fixedly connected to the side wall of the clamping seat.

[0012] Preferably, a third limiting plate is fixedly connected to the inner wall of the first mounting seat port, and an upper end of the third limiting plate is provided with an inclined surface.

[0013] Preferably, the diameter of the third gear is smaller than the diameter of the rotating block, and the diameter of the rotating block is smaller than the diameter of the fourth gear.

[0014] Preferably, a distance is left between the end of the counterweight block close to the first connecting column and the baffle.

[0015] Preferably, the side wall of the clamping plate is fixedly connected with a rubber plate, and a plurality of grooves are evenly formed on the side wall of the rubber plate away from the clamping plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: A machine vision inspection device proposed in the present invention first adjusts four support plates to appropriate positions through a support assembly according to the size of the workpiece, then uses the support plates for support, places the workpiece on the upper end of the support plates, uses a second motor to drive a clamping plate to clamp the workpiece, and cooperates with the first mounting seat, the connecting rod and the second connecting seat to drive the workpiece to move upward, so that the workpiece gradually moves away from the support plates, and the support plates are driven to rotate by the gravity factor through the counterweight block, so that the support plates are placed vertically to avoid collision between the subsequent workpieces and the support plates when they rotate, and then uses a holographic camera to inspect the workpiece. When it is necessary to inspect other surfaces of the workpiece, the third motor is directly started to drive the clamping plate to rotate, thereby realizing rapid turning over of the workpiece, shortening the inspection time and improving the inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional schematic diagram of the present invention Figure 1 ; Figure 2 A three-dimensional schematic diagram of the present invention Figure 2 ; Figure 3 It is a three-dimensional exploded schematic diagram of the internal structure of the base in the present invention; Figure 4 It is a three-dimensional exploded schematic diagram of the middle support assembly in the present invention; Figure 5 It is a three-dimensional schematic diagram of the base in the present invention; Figure 6 A three-dimensional exploded view of the clamping seat in the present invention Figure 1 ; Figure 7 A three-dimensional exploded view of the clamping seat in the present invention Figure 2 ; Figure 8 It is a three-dimensional exploded schematic diagram of the second mounting base in the present invention.

[0018] Legend: 1. Base; 101. First mounting slot; 102. Second mounting slot; 103. Third mounting slot; 104. Baffle; 11. Support assembly; 111. First motor; 112. Rotating column; 113. First bevel gear; 114. Second bevel gear; 115. Second bidirectional threaded rod; 116. Sliding block; 117. First connecting column; 118. Support plate; 119. Counterweight; 12. Second motor; 121. First bidirectional threaded rod; 13. Moving block; 131. Slot; 14. First connecting seat; 141. Threaded column; 142. First limiting plate; 143. Second limiting plate; 15. First mounting seat; 151. third limit plate; 16. connecting rod; 161. second connecting seat; 162. fourth mounting groove; 163. spring; 17. clamping seat; 170. rotating groove; 171. third motor; 172. first gear; 173. second gear; 174. connecting shaft; 18. clamping plate; 181. limit ring; 19. rubber sheet; 191. groove; 2. connecting plate; 3. second mounting seat; 301. fifth mounting groove; 302. slide groove; 31. rotating block; 32. second connecting column; 33. third gear; 34. fourth gear; 35. rack; 36. moving seat; 4. electric push rod; 5. holographic camera. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In order to solve the existing problem that the workpiece needs to be frequently released, then turned over, and clamped again, which makes the operation cumbersome and inefficient, please refer to Figure 1-Figure 5 , providing the following preferred technical solutions.

[0021] An embodiment of the present invention is as follows: a machine vision inspection device comprises a base 1, a first mounting groove 101 is provided at the upper end of the base 1, a second mounting groove 102 is provided at the upper end of the base 1, the first mounting groove 101 and the second mounting groove 102 are communicated, a support assembly 11 is arranged inside the base 1, a second motor 12 is fixedly connected to the side wall of the base 1, a first bidirectional threaded rod 121 is fixedly connected to the output end of the second motor 12, an end of the first bidirectional threaded rod 121 away from the second motor 12 passes through the first mounting groove 101, the side wall of the first bidirectional threaded rod 121 located in the first mounting groove 101 is threadedly connected to two moving blocks 13, the moving blocks 13 are slidably connected to the inner wall of the first mounting groove 101, a first connecting seat 14 is arranged on the upper end of each moving block 13, a first mounting seat 15 is fixedly connected to the side wall of the first connecting seat 14, and the first mounting seat 15 is internally threaded The pin shaft is rotatably connected to a connecting rod 16, and one end of the connecting rod 16 away from the first mounting seat 15 is rotatably connected to a second connecting seat 161, and one end of the second connecting seat 161 is fixedly connected to a clamping seat 17, and a side wall of the clamping seat 17 is fixedly connected to a third motor 171, and the output end of the third motor 171 passes through the inside of the clamping seat 17, and the output end of the third motor 171 is fixedly connected to a first gear 172, and the side wall of the first gear 172 is meshingly connected to a second gear 173, and the first gear 172 and the second gear 173 are positioned and rotatably connected inside the clamping seat 17, and one end of the second gear 173 is fixedly connected to a connecting shaft 174, and one end of the connecting shaft 174 away from the second gear 173 passes through the clamping seat 17, and one end of the connecting shaft 174 located outside the clamping seat 17 is fixedly connected to a clamping plate 18, and another side wall of the clamping seat 17 is movably connected to the other clamping plate 18 through a pin shaft.

[0022] Specifically, by placing the product to be inspected on the upper end of the base 1 and supporting it with the support assembly 11, and then starting the second motor 12 to rotate, the second motor 12 drives the first bidirectional threaded rod 121 to rotate, so that the first bidirectional threaded rod 121 drives the two moving blocks 13 to slide on the inner wall of the first mounting groove 101 respectively, so that the moving block 13 drives the first connecting seat 14 to move linearly, so that the first connecting seat 14 drives the first mounting seat 15 to move linearly, so that the first mounting seat 15 drives the clamping plate 18 to move linearly through the connecting rod 16, the second connecting seat 161 and the clamping seat 17, and when the side wall of the clamping plate 18 abuts against the workpiece, the two ends of the connecting rod 16 respectively surround the first The mounting seat 15 and the second connecting seat 161 rotate, and when the first connecting seat 14 continues to move in a straight line, the clamping plate 18 gradually lifts the workpiece, so that the workpiece moves upward, and when the connecting rod 16 is parallel to the first mounting seat 15, the second motor 12 is turned off, thereby completing the clamping of the workpiece. When the upper surface inspection of the workpiece is completed, the third motor 171 is started, so that the third motor 171 drives the first gear 172 to rotate, and the first gear 172 drives the second gear 173 to rotate, and the second gear 173 drives the connecting shaft 174 to rotate, so that the connecting shaft 174 drives the clamping plate 18 to rotate, and the clamping plate 18 drives the workpiece to rotate, thereby quickly turning the workpiece over to increase the inspection efficiency.

[0023] A connecting plate 2 is fixedly connected to the upper end of the base 1, and a second mounting seat 3 is fixedly connected to the upper end of the connecting plate 2. A fifth mounting groove 301 is provided on the side wall of the second mounting seat 3, and a slide groove 302 is provided on the lower end of the second mounting seat 3. A rotating block 31 is movably connected to the inner wall of the fifth mounting groove 301, and a second connecting column 32 is fixedly connected to the upper end of the rotating block 31, and a third gear 33 is fixedly connected to the upper end of the second connecting column 32. A fourth gear 34 is meshedly connected to the side wall of the third gear 33, and the fourth gear 34 is positioned and rotatably connected inside the second mounting seat 3, and a rack 35 is meshedly connected to the side wall of the fourth gear 34. A moving seat 36 is fixedly connected to the lower end of the rack 35, and the moving seat 36 is slidably connected to the inner wall of the slide groove 302. An electric push rod 4 is fixedly connected to the lower end of the moving seat 36, and a holographic camera 5 is fixedly connected to the output end of the electric push rod 4.

[0024] Specifically, the electric push rod 4 is started to drive the holographic camera 5 to adjust the position in the vertical direction. Secondly, when a defect appears locally on the surface of the workpiece and needs secondary confirmation, the rotating block 31 can be directly rotated, so that the rotating block 31 drives the second connecting column 32 to rotate, and the second connecting column 32 drives the third gear 33 to rotate, so that the third gear 33 drives the fourth gear 34 to rotate, so that the fourth gear 34 drives the rack 35 to move linearly, and the rack 35 drives the moving seat 36 to move linearly, so that the moving seat 36 drives the holographic camera 5 through the electric push rod 4 to adjust the position and gradually approach the defect, and then a secondary confirmation is performed.

[0025] The side wall of the second mounting groove 102 is provided with a third mounting groove 103, and the two side walls of the second mounting groove 102 are respectively fixedly connected with baffles 104, and the baffles 104 are located below the third mounting groove 103. The support assembly 11 includes a first motor 111 fixedly connected to the outer wall of the base 1, and the output end of the first motor 111 is fixedly connected to a rotating column 112, and the side wall of the rotating column 112 is fixedly connected with two first bevel gears 113, and the side wall of the first bevel gear 113 is meshedly connected with a second bevel gear 114, and one end of the second bevel gear 114 is fixedly connected with a second bidirectional threaded rod 115, and the side wall of the second bidirectional threaded rod 115 is threadedly connected with Two sliders 116, an inner groove is opened inside the base 1 for the installation of the rotating column 112 and the second bidirectional threaded rod 115, the rotating column 112 and the second bidirectional threaded rod 115 are installed and rotatably installed inside the inner groove, the side wall of the slider 116 is rotatably connected with the first connecting column 117, the slider 116 is slidably set in the inner groove, the inner groove is connected to the third installation groove 103, the first connecting column 117 is slidably connected to the inner wall of the third installation groove 103, one end of the first connecting column 117 is fixedly connected to the support plate 118, the support plate 118 is set in the second installation groove 102, and the side wall of the support plate 118 is fixedly connected to the counterweight block 119.

[0026] Specifically, according to the size of the workpiece, the first motor 111 is started, so that the first motor 111 drives the rotating column 112 to rotate, so that the rotating column 112 drives the two first bevel gears 113 to rotate, so that the two first bevel gears 113 respectively drive the second bevel gear 114 to rotate, so that the second bevel gear 114 drives the second bidirectional threaded rod 115 to rotate, so that the second bidirectional threaded rod 115 drives the slider 116 to move linearly, so that the slider 116 drives the first connecting column 117 to slide on the inner wall of the third mounting groove 103, so that the first connecting column 117 7 drives the support plate 118 to move linearly to an appropriate position, and then brings one end of the support plate 118 away from the counterweight block 119 into contact with the baffle 104, and places the workpiece on the upper end of the support plate 118, and then starts the second motor 12 to clamp the workpiece. After the workpiece is clamped, the workpiece rises and moves away from the upper surface of the support plate 118, and then the gravity exerted on the counterweight block 119 drives one end of the support plate 118 away from the baffle 104, and the support plate 118 is placed vertically, thereby preventing the support plate 118 from hindering the rotation of subsequent workpieces.

[0027] A threaded column 141 is movably connected inside the first connecting seat 14, and a first limiting plate 142 is fixedly connected to the side wall of the threaded column 141. The threaded column 141 at the lower end of the first limiting plate 142 is threadedly connected to the moving block 13. The two non-adjacent side walls of the moving block 13 are provided with a slot 131. The lower end of the first connecting seat 14 is fixedly connected to a second limiting plate 143, and the second limiting plate 143 is slidably connected to the inner wall of the slot 131.

[0028] Specifically, the threaded column 141 is rotated and the threaded connection between the lower end side wall of the threaded column 141 and the movable block 13 is coordinated to make the threaded column 141 move upward. At the same time, the first limiting plate 142 and the second limiting plate 143 are used to limit the first connecting seat 14 to move upward, so that the first connecting seat 14 drives the first mounting seat 15 to move upward, thereby adjusting the height of the clamping plate 18.

[0029] Furthermore, in order to enhance the stability of the device, Figure 6-Figure 8 As shown, the following preferred technical solutions are provided.

[0030] A rotation groove 170 is provided on the side wall of the clamping seat 17, and a limit ring 181 is slidably connected to the inner wall of the rotation groove 170. The limit ring 181 is fixedly connected to the clamp plate 18 and is used to limit the connection shaft 174 when the clamp plate 18 rotates, thereby avoiding the connection shaft 174 from being subjected to a single force and increasing the stability of the connection shaft 174.

[0031] A fourth mounting groove 162 is formed on the side wall of the connecting rod 16 , and a spring 163 is fixedly mounted on the inner wall of the fourth mounting groove 162 . One end of the spring 163 away from the connecting rod 16 is fixedly connected to the side wall of the clamping seat 17 , so as to use the spring 163 to provide auxiliary support to the clamping seat 17 .

[0032] A third limiting plate 151 is fixedly connected to the inner wall at the port of the first mounting seat 15. An inclined surface is provided on the upper end of the third limiting plate 151 for supporting the limiting connecting rod 16 so that the connecting rod 16 remains in an inclined state. At the same time, the inclined surface is provided for increasing the contact area between the third limiting plate 151 and the connecting rod 16.

[0033] The diameter of the third gear 33 is smaller than that of the rotating block 31, and the diameter of the rotating block 31 is smaller than that of the fourth gear 34. The third gear 33 and the rotating block 31 are coaxially arranged. The worker drives the rotating block 31 with a larger size, and then drives the third gear 33. Finally, the third gear 33 with a smaller size is used to drive the fourth gear 34 with a larger size, so as to achieve slow rotation of the fourth gear 34, and then achieve slow movement of the holographic camera 5, thereby increasing its movement accuracy.

[0034] A gap is left between the end of the counterweight 119 close to the first connecting column 117 and the baffle 104 to increase the smoothness of the rotation of the support plate 118 and avoid jamming between the counterweight 119 and the baffle 104 when the support plate 118 rotates.

[0035] The side wall of the clamping plate 18 is fixedly connected with a rubber plate 19, and the side wall of the rubber plate 19 away from the clamping plate 18 is evenly provided with a plurality of grooves 191 for increasing the friction force by using the rubber plate 19, so that the clamping plate 18 can clamp the workpiece more stably and avoid damage to the workpiece due to clamping.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A machine vision inspection device, comprising a base (1), characterized in that: The base (1) has a first mounting groove (101) at its upper end, a second mounting groove (102) at its upper end, the first mounting groove (101) and the second mounting groove (102) communicating with each other, a support assembly (11) being arranged inside the base (1), a second motor (12) being fixedly connected to a side wall of the base (1), a first bidirectional threaded rod (121) being fixedly connected to an output end of the second motor (12), an end of the first bidirectional threaded rod (121) away from the second motor (12) passing through the first mounting groove (101), a side wall of the first bidirectional threaded rod (121) located in the first mounting groove (101) being threadedly connected to two moving blocks (13), the moving blocks (13) being slidably connected to the inner wall of the first mounting groove (101), a first connecting seat (14) being arranged at the upper end of each moving block (13), a first mounting seat (15) being fixedly connected to a side wall of the first connecting seat (14), a connecting rod (16) being rotatably connected to the inside of the first mounting seat (15) via a pin shaft, and the connecting rod (16) being rotatably connected to the inside of the first mounting seat (15), One end of the connecting rod (16) away from the first mounting seat (15) is rotatably connected to the second connecting seat (161), one end of the second connecting seat (161) is fixedly connected to the clamping seat (17), a side wall of the clamping seat (17) is fixedly connected to the third motor (171), the output end of the third motor (171) passes through the inside of the clamping seat (17), the output end of the third motor (171) is fixedly connected to the first gear (172), and the side wall of the first gear (172) is meshingly connected to the second gear (1 73), the first gear (172) and the second gear (173) are positioned and rotatably connected inside the clamping seat (17), one end of the second gear (173) is fixedly connected to a connecting shaft (174), one end of the connecting shaft (174) away from the second gear (173) passes through the clamping seat (17), one end of the connecting shaft (174) located outside the clamping seat (17) is fixedly connected to a clamping plate (18), and another side wall of the clamping seat (17) is movably connected to another clamping plate (18) via a pin shaft.

2. A machine vision inspection device according to claim 1, characterized in that: The upper end of the base (1) is fixedly connected to a connecting plate (2), the upper end of the connecting plate (2) is fixedly connected to a second mounting seat (3), a side wall of the second mounting seat (3) is provided with a fifth mounting groove (301), a lower end of the second mounting seat (3) is provided with a sliding groove (302), an inner wall of the fifth mounting groove (301) is movably connected to a rotating block (31), an upper end of the rotating block (31) is fixedly connected to a second connecting column (32), an upper end of the second connecting column (32) is fixedly connected to a third gear (33), a side wall of the third gear (33) is meshingly connected to a fourth gear (34), the fourth gear (34) is positioned and rotatably connected inside the second mounting seat (3), a side wall of the fourth gear (34) is meshingly connected to a rack (35), a lower end of the rack (35) is fixedly connected to a moving seat (36), the moving seat (36) is slidably connected to the inner wall of the sliding groove (302), an electric push rod (4) is fixedly connected to the lower end of the moving seat (36), and an output end of the electric push rod (4) is fixedly connected to a holographic camera (5).

3. A machine vision inspection device according to claim 2, characterized in that: The side wall of the second mounting groove (102) is provided with a third mounting groove (103), and baffles (104) are fixedly connected to the side walls of the second mounting groove (102), respectively, and the baffles (104) are located below the third mounting groove (103). The support assembly (11) comprises a first motor (111) fixedly connected to the outer wall of the base (1), and the output end of the first motor (111) is fixedly connected to a rotating column (112), and the rotating column (112) is rotatably mounted inside the base (1). The side wall of the rotating column (112) is fixedly connected to two first bevel gears (113), and the side walls of the first bevel gears (113) are meshed with each other. A second bevel gear (114) is connected, one end of the second bevel gear (114) is fixedly connected to a second bidirectional threaded rod (115), the second bidirectional threaded rod (115) is rotatably mounted inside the base (1), the side wall of the second bidirectional threaded rod (115) is threadedly connected to two sliders (116), the side wall of the slider (116) is rotatably connected to a first connecting column (117), the first connecting column (117) is slidably connected to the inner wall of the third installation groove (103), one end of the first connecting column (117) is fixedly connected to a support plate (118), and the side wall of the support plate (118) is fixedly connected to a counterweight (119).

4. A machine vision inspection device according to claim 1, characterized in that: A threaded column (141) is movably connected inside the first connection seat (14), a first limiting plate (142) is fixedly connected to the side wall of the threaded column (141), the threaded column (141) at the lower end of the first limiting plate (142) is threadedly connected to the moving block (13), and a clamping groove (131) is provided on two non-adjacent side walls of the moving block (13), and a second limiting plate (143) is fixedly connected to the lower end of the first connection seat (14), and the second limiting plate (143) is slidably connected to the inner wall of the clamping groove (131).

5. A machine vision inspection device according to claim 1, characterized in that: A rotation groove (170) is formed on the side wall of the clamping seat (17), and a limit ring (181) is slidably connected to the inner wall of the rotation groove (170), and the limit ring (181) is fixedly connected to the clamping plate (18).

6. A machine vision inspection device according to claim 1, characterized in that: The side wall of the connecting rod (16) is provided with a fourth installation groove (162), the inner wall of the fourth installation groove (162) is fixedly mounted with a spring (163), and one end of the spring (163) away from the connecting rod (16) is fixedly connected to the side wall of the clamping seat (17).

7. A machine vision inspection device according to claim 1, characterized in that: A third limiting plate (151) is fixedly connected to the inner wall of the port of the first mounting seat (15), and an inclined surface is provided on the upper end of the third limiting plate (151).

8. A machine vision inspection device according to claim 2, characterized in that: The diameter of the third gear (33) is smaller than the diameter of the rotating block (31), and the diameter of the rotating block (31) is smaller than the diameter of the fourth gear (34).

9. A machine vision inspection device according to claim 3, characterized in that: A distance is left between the end of the counterweight block (119) close to the first connecting column (117) and the baffle plate (104).

10. A machine vision inspection device according to claim 1, characterized in that: The side wall of the clamping plate (18) is fixedly connected to a rubber plate (19), and a plurality of grooves (191) are evenly formed on the side wall of the rubber plate (19) away from the clamping plate (18).

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