A high-precision 3D vision inspection component

Abstract

This invention discloses a high-precision three-dimensional vision inspection component, including an inspection platform, a light source inspection mechanism, and a loading mechanism. A first ring frame, a second ring frame, and a third ring frame are sequentially arranged from top to bottom on the inspection platform. A component for flipping the inspection base is provided on a second sliding block, and a component for controlling the tightness of clamping plates is also provided on the second sliding block. An equipment frame is fixed to the upper end of the side frame, and a loading mechanism for picking up and placing parts is installed at the bottom of the equipment frame. In this invention, the pressure transmission of the convex block on the spiral slide rail drives the rotating shaft to rotate the inspection base 180 degrees, flipping the automotive handlebar parts, thereby achieving rapid and efficient double-sided inspection of automotive handlebar parts. Furthermore, during the inspection of the handlebar parts by the light source inspection mechanism, the inspection base remains in a moving state under the action of the conveyor chain, achieving uninterrupted inspection of the parts, thus improving the inspection efficiency of automotive handlebar parts.

Description

Technical Field

[0001] This invention relates to the field of three-dimensional vision inspection equipment technology, and in particular to a high-precision three-dimensional vision inspection component. Background Technology

[0002] Three-dimensional vision inspection equipment, also known as non-contact three-dimensional optical measuring instrument, is a high-precision measuring instrument used to measure three-dimensional geometric dimensions and form and position tolerances.

[0003] In the production of car door handles, a 3D vision inspection system is needed to scan and inspect the appearance of the manufactured door handles. The scanned dimensional data is compared with the data of a standard model to analyze and detect any defects in the appearance of the car door handle parts. Existing high-precision 3D vision inspection equipment, to achieve double-sided inspection of car door handle parts, typically relies on workers using a handheld 3D vision analyzer, adjusting the scanning angle of the analyzer. This handheld light source inspection method is inefficient. Alternatively, a conveyor belt can be used to arrange the car door handle parts sequentially and at equal intervals, and install them on... The high-precision 3D vision inspection equipment on one side of the conveyor will scan each of the car handle parts that come on the conveyor belt. However, this vision inspection method can only perform single-sided vision inspection of the car handle parts. After the single-sided inspection, a separate car parts flipping device is required to flip the handle parts. During the operation, the conveyor used to transport the car parts should be in a stopped state. The conveyor should remain stopped during each round of vision inspection and will only be restarted after the car handle parts have been inspected. This inspection method has the problems of high operating costs and low inspection efficiency.

[0004] To address the aforementioned shortcomings, a high-precision 3D vision inspection component is provided. Summary of the Invention

[0005] The purpose of this invention is to provide a high-precision three-dimensional vision inspection component in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-precision three-dimensional vision inspection component, including an inspection platform, a light source inspection mechanism and a feeding mechanism, wherein a first ring frame, a second ring frame and a third ring frame are arranged sequentially from top to bottom above the inspection platform, the first ring frame and the third ring frame are fixed on the inspection platform by a bracket, and the second ring frame is fixed on a square base by a bracket;

[0007] A second sliding block is slidably disposed on the upper side of the first ring frame, and a first sliding block is slidably disposed on the upper side of the second ring frame. Conveyor chains are embedded inside the first and second ring frames, and the two conveyor chains are rotatably connected to the first and second sliding blocks respectively. A gear set for driving the conveyor chains is rotatably connected to the upper end of the detection table, and a motor for controlling the rotation of the gear set is installed inside the detection table.

[0008] A square base is fixed to the upper end of the testing platform, and a frame plate is fixed to the upper end of the square base. A crossbar is fixed in the frame plate to cooperate with the horizontal sliding of the light source testing mechanism. A component for controlling the horizontal reciprocating movement of the light source testing mechanism is provided on the frame plate.

[0009] A detection base is rotatably connected between the first sliding block and the second sliding block. The detection base has a hollow groove for embedding mating parts inside. A platform for placing mating parts is fixed inside the hollow groove. A clamping piece is movably arranged inside the hollow groove. A component for flipping the detection base is provided on the second sliding block. A component for controlling the tightness of the clamping piece is also provided on the second sliding block.

[0010] The testing station has a side receiving frame fixed to its side end. The side receiving frame is equipped with a conveying mechanism for transporting parts. The upper end of the side receiving frame is equipped with an equipment frame. The bottom of the equipment frame is equipped with a loading mechanism for picking up and placing parts.

[0011] Preferably, the upper end of the light source detection mechanism is fixedly provided with a strip-shaped stop block, and the component for controlling the horizontal reciprocating movement of the light source detection mechanism includes a tripod fixed on both sides of the frame plate, and the upper end of the tripod is rotatably connected to a guide cam for pushing the strip-shaped stop block.

[0012] Preferably, the upper end of the gear set is fixed with coaxially distributed shafts, and the output end of the shafts passes through the triangular frame and is fixedly connected to the guide cam.

[0013] Preferably, the component that cooperates with the flipping of the detection base includes a rotating shaft rotatably connected to the side end of the detection base, and the rotating shaft passes outward through the second sliding block. A sliding sleeve is slidably sleeved on the outer side of the rotating shaft, and a component for controlling the horizontal movement of the sliding sleeve is provided on the outer side of the second sliding block.

[0014] Preferably, a protrusion is formed at the inner end of the sliding sleeve, and a spiral slide rail that slides in conjunction with the protrusion is formed on the outer wall of the rotating shaft.

[0015] Preferably, the component for controlling the horizontal movement of the sliding sleeve includes a bending frame fixed to the outer end of the sliding sleeve, a driven block fixed on the bending frame, and a guide groove formed on the third annular frame to cooperate with the sliding of the driven block.

[0016] Preferably, the component for controlling the tightness of the clamp includes a slide rod rotatably connected to the side end of the clamp, and the slide rod is slidably embedded inside the rotating shaft, with a roller rotatably connected to one end of the slide rod extending outward from the rotating shaft.

[0017] Preferably, the interior of the third annular frame forms a chute that cooperates with the rolling of the rollers, and a notch is formed in the section of the chute near the conveying mechanism.

[0018] Preferably, a plug is fixed to the side end of the clip, and a slot is formed inside the detection base to accommodate the plug.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0020] 1. In this application, when the sliding sleeve slides along the rotating shaft, the rotating shaft is driven to rotate the detection base by 180 degrees through the pressure transmission of the convex block on the spiral slide rail, so as to flip the car handle parts and thus meet the requirements of fast and efficient double-sided inspection of the car handle parts. In addition, during the inspection of the handle parts by the light source inspection mechanism, the detection base always remains in a moving state under the action of the conveyor chain, so as to realize the non-stop inspection of the parts and thus improve the inspection efficiency of the car handle parts.

[0021] 2. In this application, when the detection base moves to the working area of ​​the light source detection mechanism along with the operation of the conveyor chain, the light source detection mechanism will move synchronously with the detection base for a certain distance. During this process, the light source detection mechanism and the detection base remain relatively stationary, which is conducive to the three-dimensional scanning detection of the car handle parts on the detection base during the movement, and achieves the effect of ensuring the accuracy of visual scanning data. Attached Figure Description

[0022] Figure 1 A frontal perspective view of a visual inspection device provided according to an embodiment of the present invention is shown;

[0023] Figure 2 A rear-view perspective view of a visual inspection device provided according to an embodiment of the present invention is shown;

[0024] Figure 3 A top perspective view of a visual inspection device provided according to an embodiment of the present invention is shown;

[0025] Figure 4 A side sectional view of a third annular frame provided according to an embodiment of the present invention is shown;

[0026] Figure 5 A top sectional view of a third annular frame provided according to an embodiment of the present invention is shown;

[0027] Figure 6 A cross-sectional schematic diagram of a testing base provided according to an embodiment of the present invention is shown.

[0028] Legend:

[0029] 1. Testing table; 2. First ring frame; 3. Second ring frame; 4. Conveyor chain; 5. Gear set; 6. Square base; 7. Frame plate; 8. Crossbar; 9. Light source testing mechanism; 10. Strip block; 11. Triangular frame; 12. Guide cam; 13. Shaft; 14. First sliding block; 15. Second sliding block; 16. Testing base; 1601. Hollowed-out groove; 1602. Slot; 17. 18. Platform; 19. Clamping plate; 20. Insert rod; 21. Slide rod; 22. Roller; 23. Rotary shaft; 24. Spiral slide rail; 25. Sliding sleeve; 26. Protrusion; 27. Bending frame; 28. Driven block; 29. ​​Third ring frame; 20. Guide groove; 21. Slide groove; 22. Notch groove; 23. Side connecting frame; 24. Conveying mechanism; 25. Equipment frame; 36. Feeding mechanism. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-6 The present invention provides a technical solution: a high-precision three-dimensional vision inspection component, including an inspection platform 1, a light source inspection mechanism 9, and a feeding mechanism 30. A first ring frame 2, a second ring frame 3, and a third ring frame 26 are arranged sequentially from top to bottom above the inspection platform 1. The first ring frame 2 and the third ring frame 26 are fixed on the inspection platform 1 by a bracket, and the second ring frame 3 is fixed on a square base 6 by a bracket. The outer diameter of the first ring frame 2 is larger than that of the second ring frame 3. The gap formed between the first ring frame 2 and the second ring frame 3 provides space for the inspection base 16 to move.

[0032] A second sliding block 15 is slidably disposed on the upper side of the first ring frame 2, and a first sliding block 14 is slidably disposed on the upper side of the second ring frame 3. Both the first ring frame 2 and the second ring frame 3 are internally fitted with conveyor chains 4, and the two conveyor chains 4 are rotatably connected to the first sliding block 14 and the second sliding block 15 respectively. The upper end of the testing table 1 is rotatably connected with a gear set 5 that drives the conveyor chains 4. A motor that controls the rotation of the gear set 5 is installed inside the testing table 1. The gear set 5 is fixedly composed of two coaxially distributed toothed discs, and the outer diameter of the toothed disc corresponding to the first ring frame 2 is larger than the outer diameter of the toothed disc corresponding to the second ring frame 3. The motor is started to control the operation of the gear set 5, so that the two conveyor chains 4 synchronously transport the first sliding block 14 and the second sliding block 15 in a ring.

[0033] A square base 6 is fixedly mounted on the upper end of the testing platform 1, and a frame plate 7 is fixedly mounted on the upper end of the square base 6. A crossbar 8 is fixedly mounted in the frame plate 7 to slide horizontally with the light source testing mechanism 9. A component is provided on the frame plate 7 to control the horizontal reciprocating movement of the light source testing mechanism 9. A testing base 16 is rotatably connected between the first sliding block 14 and the second sliding block 15. A hollow groove 1601 for embedding mating parts is formed inside the testing base 16. A platform 17 for placing mating parts is fixed inside the hollow groove 1601. The platform 17 extends inward to the hollow groove 1601 and is used to place the edge of the car handlebar part, without affecting the visual scanning of the car handlebar part by the light source testing mechanism 9. The detection base 16 is designed to stably clamp the parts. The hollow groove 1601 is equipped with a clamping piece 18. The second sliding block 15 is equipped with a component that cooperates with the flipping of the detection base 16. The second sliding block 15 is also equipped with a component that controls the tightness of the clamping piece 18. When the detection base 16 moves to the working area of ​​the light source detection mechanism 9 along with the operation of the conveyor chain 4, the light source detection mechanism 9 will move synchronously with the detection base 16 for a certain distance. During this process, the light source detection mechanism 9 and the detection base 16 remain relatively stationary, which is conducive to the three-dimensional scanning detection of the car handle parts on the detection base 16 during the movement, and achieves the effect of ensuring the accuracy of visual scanning data.

[0034] A side frame 27 is fixedly installed on the side end of the testing station 1. The side frame 27 is equipped with a conveyor mechanism 28 for transporting parts. The conveyor mechanism 28 adopts the existing conveyor belt conveying method and consists of two conveyor belts that transport in opposite directions. One conveyor belt is used to transport the tested car handle parts outward, and the other conveyor belt is used to transport the car handle parts to be tested to the testing station 1. An equipment frame 29 is fixedly installed on the upper end of the side frame 27. A loading mechanism 30 for picking up and placing parts is installed at the bottom of the equipment frame 29. The loading mechanism 30 adopts the existing robotic arm gripping loading method to grip the car handle parts on the conveyor mechanism 28 and place them into the testing base 16. Through the circumferential transport of the conveyor chain 4, the batch of car handle parts can be cyclically tested, thereby improving the testing efficiency of car parts.

[0035] The detection base 16 and the first sliding block 14 and the second sliding block 15 distributed on both sides thereon should be distributed in a ring at equal intervals along the conveyor chain 4, which is conducive to the rapid batch detection of automobile handle parts.

[0036] Specifically, such as Figure 1-4As shown, a strip-shaped stop 10 is fixedly mounted on the upper end of the light source detection mechanism 9. The components controlling the horizontal reciprocating movement of the light source detection mechanism 9 include a tripod 11 fixed on both sides of the frame plate 7. A guide cam 12 for pushing the strip-shaped stop 10 is rotatably connected to the upper end of the tripod 11. A shaft 13 coaxially distributed on the upper end of the gear set 5 is fixedly mounted, and the output end of the shaft 13 passes through the tripod 11 and is fixedly connected to the guide cam 12. When the gear set 5 rotates, it drives the guide cam 12 to rotate via the shaft 13. During rotation, the two guide cams 12 are distributed on both sides of the strip-shaped stop 10, achieving a reciprocating action on the strip-shaped stop 10. When the car handle is zero... When the component moves from the detection base 16 to the working area of ​​the light source detection mechanism 9, the end of one of the guide cams 12 will abut against the side wall of the strip block 10. By pressing and pushing the strip block 10 with the rotating guide cam 12, the light source detection mechanism 9 is driven to move horizontally, thereby achieving tracking and detection of the car handle parts during the movement. When the car handle parts move away from the working area of ​​the light source detection mechanism 9 with the movement of the detection base 16, the other guide cam 12 acts in the opposite direction on the strip block 10. By pushing the strip block 10, the light source detection mechanism 9 is driven to move and reset, thereby satisfying the requirement for the light source detection mechanism 9 to continue detecting the next set of car handle parts.

[0037] Specifically, such as Figure 1-6 As shown, the components that cooperate with the flipping of the detection base 16 include a rotating shaft 22 rotatably connected to the side of the detection base 16, and the rotating shaft 22 extends outward through the second sliding block 15. A sliding sleeve 23 is slidably sleeved on the outer side of the rotating shaft 22, and an assembly for controlling the horizontal movement of the sliding sleeve 23 is provided on the outer side of the second sliding block 15. A protrusion 2301 is formed at the inner end of the sliding sleeve 23, and a spiral slide rail 2201 that slides in cooperation with the protrusion 2301 is formed on the outer wall of the rotating shaft 22. When the sliding sleeve 23 slides along the outer side of the rotating shaft 22, the protrusion 2301 will slide along the spiral slide rail 2201. Through the pressure transmission of the protrusion 2301 on the spiral slide rail 2201, the rotating shaft 22 drives the detection base 16 to flip 180 degrees, thereby realizing the flipping process of the car handle parts and thus meeting the requirements for fast and efficient double-sided detection of the car handle parts.

[0038] The components controlling the horizontal movement of the sliding sleeve 23 include a bending frame 24 fixed to the outer end of the sliding sleeve 23, a driven block 25 fixed on the bending frame 24, and a guide groove 2601 formed on the third annular frame 26 to cooperate with the sliding of the driven block 25. The guide groove 2601 consists of two semi-annular grooves and an oblique groove connecting the semi-annular grooves, and the two semi-annular grooves have different radii. When the driven block 25 slides along the semi-annular groove with the smaller radius, the front of the car handle part in the detection base 16 faces upward. When the driven block 25 slides along the oblique groove, the bending frame 24 will drive the sliding sleeve 23 to slide along the rotating shaft 22, controlling the rotation of the detection base 16. When the driven block 25 slides along the semi-annular groove with the larger radius, the back of the car handle part faces upward. By setting two semi-annular grooves with different radii, the light source detection mechanism 9 can perform comprehensive detection on the front and back of the car handle part.

[0039] Specifically, such as Figure 5 and Figure 6 As shown, the components controlling the tightness of the clamp 18 include a slide rod 20 rotatably connected to the side of the clamp 18, and the slide rod 20 is slidably embedded in the inner side of the rotating shaft 22. A roller 21 is rotatably connected to one end of the slide rod 20 extending outward from the rotating shaft 22. A magnetic absorbing piece should be fixed to the side of the clamp 18, and an iron piece that cooperates with the magnetic absorbing piece should be provided in the inner wall of the detection base 16. A groove 2602 is formed inside the third ring frame 26 to allow the roller 21 to roll. A notch 2603 is formed in the section of the groove 2602 near the conveying mechanism 28. When the first sliding block 14 and the second sliding block 15 move the detection base 16 under the action of the conveying chain 4, the roller 21 rotatably connected inside the slide rod 20 will roll along the groove 2602. When the roller 21 rolls into the notch 2603, the clamp 18 will release under magnetic attraction. In addition to clamping the car handlebar parts, the car handlebar parts located in the hollow groove 1601 will fall down onto the conveying mechanism 28, which will then move the inspected car handlebar parts outward. Subsequently, the driven block 25 passes through the inclined groove again and returns to the semi-annular groove with a smaller radius. The inspection base 16 rotates and resets, causing the platform 17 to rotate upward. At this time, the loading mechanism 30 on the equipment frame 29 grabs the uninspected car handlebar parts on the conveying mechanism 28 into the hollow groove 1601 of the inspection base 16. The roller 21 disengages from the notch 2603 and, under the action of the inner wall of the slide groove 2602, the roller 21 acts on the clamping piece 18 through the slide rod 20, thereby clamping and fixing the car handlebar parts, which helps the car handlebar parts maintain a stable state during transportation.

[0040] A rod 19 is fixedly provided on the side end of the clamping piece 18, and a slot 1602 is formed inside the detection base 16 to slide into the rod 19. During the movement of the clamping piece 18 in the hollowed-out groove 1601, the rod 19 fixed on the clamping piece 18 is always slidably embedded in the slot 1602. When the detection base 16 drives the car handle to flip over, the clamping piece 18 will rotate synchronously with the rotation of the detection base 16, so that the clamping piece 18 always maintains a stable clamping state on the car handle part during the rotation of the detection base 16.

[0041] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-precision three-dimensional visual detection assembly, comprising a detection table (1), a light source detection mechanism (9) and a feeding mechanism (30), characterized in that, The first ring frame (2), the second ring frame (3) and the third ring frame (26) are arranged sequentially from top to bottom above the testing table (1). The first ring frame (2) and the third ring frame (26) are fixed on the testing table (1) by a bracket, and the second ring frame (3) is fixed on the square base (6) by a bracket. The upper side of the first ring frame (2) is slidably provided with a second sliding block (15), and the upper side of the second ring frame (3) is slidably provided with a first sliding block (14). The first ring frame (2) and the second ring frame (3) are both embedded with a conveyor chain (4), and the two conveyor chains (4) are rotatably connected to the first sliding block (14) and the second sliding block (15) respectively. The upper end of the detection table (1) is rotatably connected with a gear set (5) that drives the conveyor chain (4), and the inside of the detection table (1) is equipped with a motor that controls the rotation of the gear set (5). The upper end of the testing platform (1) is fixed with a square base (6), the upper end of the square base (6) is fixed with a frame plate (7), the frame plate (7) is fixed with a crossbar (8) that slides horizontally with the light source testing mechanism (9), and the frame plate (7) is provided with a component for controlling the horizontal reciprocating movement of the light source testing mechanism (9). A detection base (16) is rotatably connected between the first sliding block (14) and the second sliding block (15). The detection base (16) has a hollow groove (1601) for inserting mating parts inside. A platform (17) for placing mating parts is fixed inside the hollow groove (1601). A clamping piece (18) is movably arranged inside the hollow groove (1601). A component for flipping the detection base (16) is provided on the second sliding block (15). A component for controlling the tightness of the clamping piece (18) is also provided on the second sliding block (15). The side end of the testing table (1) is fixedly provided with a side frame (27), and the inside of the side frame (27) is provided with a conveying mechanism (28) for transporting parts. The upper end of the side frame (27) is fixedly provided with an equipment rack (29), and the bottom of the equipment rack (29) is equipped with a loading mechanism (30) for picking up and placing parts.

2. The high-precision three-dimensional vision inspection component according to claim 1, characterized in that, The upper end of the light source detection mechanism (9) is fixed with a strip-shaped stop (10). The component that controls the horizontal reciprocating movement of the light source detection mechanism (9) includes a tripod 1 (1) fixed on both sides of the frame plate (7). The upper end of the tripod (11) is rotatably connected to a guide cam (12) that pushes the strip-shaped stop (10).

3. The high-precision three-dimensional vision inspection component according to claim 2, characterized in that, The upper end of the gear set (5) is fixed with a coaxially distributed shaft (13), and the output end of the shaft (13) passes through the tripod (11) and is fixedly connected to the guide cam (12).

4. The high-precision three-dimensional vision inspection component according to claim 1, characterized in that, The component that cooperates with the flipping of the detection base (16) includes a rotating shaft (22) rotatably connected to the side end of the detection base (16), and the rotating shaft (22) extends outward through the second sliding block (15). A sliding sleeve (23) is slidably sleeved on the outer side of the rotating shaft (22), and a component for controlling the horizontal movement of the sliding sleeve (23) is provided on the outer side of the second sliding block (15).

5. A high-precision three-dimensional vision inspection component according to claim 4, characterized in that, The inner end of the sliding sleeve (23) is formed with a protrusion (2301), and the outer wall of the rotating shaft (22) is formed with a spiral slide rail (2201) that slides in conjunction with the protrusion (2301).

6. A high-precision three-dimensional vision inspection component according to claim 5, characterized in that, The component for controlling the horizontal movement of the sliding sleeve (23) includes a bending frame (24) fixed to the outer end of the sliding sleeve (23), a driven block (25) fixed on the bending frame (24), and a guide groove (2601) formed on the third annular frame (26) to cooperate with the sliding of the driven block (25).

7. A high-precision three-dimensional vision inspection component according to claim 1, characterized in that, The component controlling the tightness of the clamp (18) includes a slide rod (20) rotatably connected to the side end of the clamp (18), and the slide rod (20) is slidably embedded in the inner side of the rotating shaft (22). A roller (21) is rotatably connected to one end of the slide rod (20) that extends outward from the rotating shaft (22).

8. A high-precision three-dimensional vision inspection component according to claim 7, characterized in that, The interior of the third ring frame (26) forms a chute (2602) that cooperates with the roller (21) to roll, and a notch (2603) is formed in a section of the chute (2602) near the conveying mechanism (28).

9. A high-precision three-dimensional vision inspection component according to claim 8, characterized in that, The side end of the clip (18) is fixed with a plug (19), and the inside of the detection base (16) is formed with a slot (1602) that slides into the plug (19).

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