Product appearance detection equipment

Abstract

The invention belongs to the technical field of detection equipment, and particularly relates to product appearance detection equipment which comprises a workbench, a circular ring is rotationally assembled on the upper side of the workbench, a driving mechanism is arranged on the circular ring, a plurality of evenly-distributed arc-shaped bearing plates are installed on the upper side of the circular ring, and a detection mechanism is arranged on the rear side of the workbench. A product is placed on the arc-shaped bearing plate, after the product moves to a detection area, the side image collector can be driven to move along with the product, the product is positioned and clamped through the rotary clamping assembly and driven to rotate, the appearance of the product can be comprehensively detected, detection dead angles are avoided, and the automation degree is high.

Description

Technical Field

[0001] This invention belongs to the field of testing equipment technology, and specifically relates to a product appearance testing device. Background Technology

[0002] During the precision machining of cylindrical products, scratches or cracks are easily formed on the surface, requiring inspection after machining. However, current methods for inspecting the surface of cylindrical products mostly rely on manual visual observation, resulting in high labor costs, eye fatigue, and low inspection efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a product appearance inspection device. The product is placed on an arc-shaped support plate. When the product moves to the inspection area, the side image acquisition device can follow the product's movement. The rotating clamping component positions and clamps the product and drives it to rotate, thus enabling a comprehensive inspection of the product's appearance, avoiding blind spots, and achieving a high degree of automation.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0005] A product appearance inspection device includes a workbench, a ring rotatably mounted on the upper side of the workbench, a driving mechanism for the ring, a plurality of evenly distributed arc-shaped support plates mounted on the upper side of the ring, and an inspection mechanism located on the rear side of the workbench.

[0006] The detection mechanism includes a mounting slot on the rear side of the workbench, a sliding plate slidably mounted in the mounting slot, a fixed rod connected to the rear side of the sliding plate, a mounting plate connected to the upper end of the fixed rod, a side image acquisition device mounted on the lower side of the mounting plate, a first spring between the sliding plate and the side wall of the mounting slot, a clamping and rotating assembly mounted on the sliding plate, a box mounted on one side of the sliding plate, a rectangular plate slidably mounted inside the box, a sliding rod fixed to the upper side of the rectangular plate, a magnetic block connected to the upper end of the sliding rod extending slidably out of the box, an iron block matching the position of several arc-shaped support plates mounted on the lower side of the ring, and a second spring located inside the box sleeved on the outer side of the sliding rod.

[0007] The clamping and rotating assembly includes a sleeve fixed to the slide plate. Slider blocks are slidably mounted on both sides of the sleeve. An L-shaped rod is fixed to one of the two sliders on the opposite side. A third spring is provided between the opposite side of the two sliders and the side wall of the sleeve. The vertical section of the L-shaped rod extends upward to correspond to the height position of the arc-shaped support plate and is rotatably mounted with a rotating block. A clamping block is fixed to one of the two rotating blocks on the opposite side. A friction ring is fixed to the outside of the rotating block. A friction strip corresponding to the position of the friction ring is fixed to the worktable by a bracket.

[0008] Guide rods are fixed to the lower sides of both L-shaped rods. A motion groove is provided on the bottom wall of the mounting groove. Both guide rods extend into the motion groove. Guide blocks are fixed at both ends of the motion groove. Inclined surfaces are machined on the front and rear sides of both guide blocks. The two guide blocks abut against the inclined surfaces on both sides of the guide rods respectively.

[0009] The drive mechanism includes a gear ring fixed to the lower side of a circular ring, a cavity is provided on the front side of the worktable, a gear that meshes with the gear ring is rotatably mounted on the upper wall of the cavity, a motor is installed in the cavity, and the output shaft of the motor is connected to the gear transmission.

[0010] Two end image acquisition devices are installed on the right side of the workbench, located at both ends of the arc-shaped support plate.

[0011] A vertical rod is fixed to the upper end of the ring. The lower side of the arc-shaped support plate is hinged to the vertical rod. A slide rail is provided at the lower end of the arc-shaped support plate near the middle of the workbench. A movable seat is slidably assembled in the slide rail. A support rod is hinged to the lower side of the movable seat. The workbench has a circular groove. A push rod extending into the circular groove is fixed at the lower end of the support rod. The lower end of the push rod abuts against the bottom wall of the circular groove. A first trapezoidal block is fixed in the circular groove. The workbench has a first feeding seat that matches the position of the first trapezoidal block.

[0012] The workbench is equipped with a controller, and both the side image acquisition device and the end image acquisition device are signal-connected to the controller.

[0013] The workbench is provided with a rectangular slot, in which an electric telescopic rod is installed. The output shaft of the electric telescopic rod is fixed with a lifting plate. A second trapezoidal block is installed at the upper end of the lifting plate. The circular slot is provided with a through slot that matches the second trapezoidal block. The workbench is provided with a second unloading seat that matches the position of the second trapezoidal block. The electric telescopic rod is electrically connected to the controller.

[0014] A limiting slide bar is fixed in the mounting groove, and the slide plate is slidably connected to the limiting slide bar.

[0015] This invention places the product on an arc-shaped support plate. When the product moves to the detection area, it can drive the side image acquisition device to follow the product's movement. The rotating clamping component positions and clamps the product and drives it to rotate, thus enabling a comprehensive inspection of the product's appearance, avoiding blind spots in the inspection, and achieving a high degree of automation. Attached Figure Description

[0016] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0017] Figure 1This is a schematic diagram of the structure of an embodiment of a product appearance inspection device according to the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of an embodiment of a product appearance inspection device according to the present invention. Figure 2 ;

[0019] Figure 3 This is a schematic cross-sectional view of an embodiment of a product appearance inspection device according to the present invention. Figure 1 ;

[0020] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0021] Figure 5 This is a schematic cross-sectional view of an embodiment of a product appearance inspection device according to the present invention. Figure 2 ;

[0022] Figure 6 This is a schematic diagram of the overall structure of the skateboard of the present invention;

[0023] Figure 7 This is a partial cross-sectional structural diagram of the skateboard of the present invention;

[0024] Figure 8 This is a schematic diagram of the overall structure of the arc-shaped bearing plate of the present invention;

[0025] Figure 9 This is a schematic cross-sectional view of an embodiment of a product appearance inspection device according to the present invention. Figure 3 ;

[0026] Figure 10 for Figure 9 Enlarged schematic diagram of the structure at point B.

[0027] The symbols for the main components are explained below:

[0028] Workbench 1, Ring 11, Gear Ring 111, Cavity 112, Gear 113, Motor 114, Arc-shaped Bearing Plate 12, Mounting Slot 2, Limiting Slide Rod 201, Slide Plate 21, Fixing Rod 211, Mounting Plate 212, Side Image Acquisition Device 213, First Spring 214, Box 22, Rectangular Plate 23, Slide Rod 24, Magnetic Block 25, Iron Block 26, Second Spring 27, Sleeve 3, Slider 31, L-shaped Rod 32, Guide Rod 321, Motion Slot 322, Guide Block 323, Third Spring 33, Rotating Block 34, Clamping Block 35, Friction Strip 36, End Image Acquisition Device 4, Vertical Rod 5, Slide Rail 51, Moving Seat 52, Support Rod 53, Circular Slot 54, Push Rod 55, First Trapezoidal Block 56, First Unloading Seat 57, Rectangular Slot 6, Electric Telescopic Rod 61, Lifting Plate 62, Second Trapezoidal Block 63, Second Unloading Seat 64. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] like Figure 1-10 As shown, a product appearance inspection device of the present invention includes a workbench 1, a ring 11 rotatably mounted on the upper side of the workbench 1, the ring 11 is provided with a driving mechanism, a plurality of evenly distributed arc-shaped support plates 12 are installed on the upper side of the ring 11, and an inspection mechanism is provided on the rear side of the workbench 1.

[0031] The testing mechanism includes a mounting slot 2 on the rear side of the workbench 1, a sliding plate 21 slidably mounted on the mounting slot 2, a fixed rod 211 connected to the rear side of the sliding plate 21, a mounting plate 212 connected to the upper end of the fixed rod 211, a side image acquisition device 213 mounted on the lower side of the mounting plate 212, a first spring 214 between the sliding plate 21 and the side wall of the mounting slot 2, a clamping rotation assembly mounted on the sliding plate 21, a box 22 mounted on one side of the sliding plate 21, a rectangular plate 23 slidably mounted inside the box 22, a sliding rod 24 fixed on the upper side of the rectangular plate 23, a magnetic block 25 slidably extending out of the box 22 from the upper end of the sliding rod 24, and an iron block 26 matching the position of several arc-shaped support plates 12 mounted on the lower side of the ring 11, and a second spring 27 located inside the box 22 sleeved on the outer side of the sliding rod 24.

[0032] by Figure 1 For reference, the drive mechanism can drive the ring 11 to rotate counterclockwise; in the initial state, the slide plate 21 is located at the right end of the mounting groove 2 under the elastic force of the first spring 214.

[0033] When inspecting the appearance of cylindrical products, the product to be inspected can be placed on the arc-shaped support plate 12 located in front of the workbench 1 by a robotic arm or manually. Then, the drive mechanism is started to drive the ring 11 to rotate counterclockwise. When the arc-shaped support plate 12 moves to the rear of the workbench 1, it will pass through the detection area of ​​the detection mechanism to automatically inspect the appearance of the product. New products can be continuously added to the arc-shaped support plate 12 that has rotated to the front of the workbench 1, so that the appearance of the products can be continuously inspected.

[0034] When the arc-shaped support plate 12 carrying the product moves to the right end of the mounting groove 2, the iron block 26 fixed on the lower side of the ring 11 will align with the magnetic block 25, and the magnetic block 25 will attract the iron block 26. The clamping rotating assembly will also align with both ends of the product, placing the product directly below the side image acquisition unit 213. The attraction between the iron block 26 and the magnetic block 25 causes the rectangular plate 23 inside the housing 22 to slide upwards. The rectangular plate 23, through the slide rod 24, drives the magnetic block 25 to move up and down until the magnetic block 25 and the iron block 26 are firmly attracted. At this time, the ring 11 continues to rotate counterclockwise, which will drive the slide plate 21 to move synchronously in the mounting slot 2. The rotating clamping assembly continues to clamp the product and position it. When the slide plate 21 moves with the ring 11, it can drive the side image acquisition device 213 to move synchronously. At this time, the rotating clamping assembly will also drive the product to start rotating. The side image acquisition device 213 will acquire the side image of the product. During the product rotation, the side image acquisition device 213 can perform a comprehensive inspection of the product's appearance and avoid blind spots in the inspection.

[0035] When the slide plate 21 moves to the end of the mounting groove 2, the slide plate 21 will be blocked, and the ring 11 will continue to rotate counterclockwise, causing the iron block 26 to disengage from the magnetic block 25. At this time, the slide plate 21 will be reset by the elastic force of the first spring 214 and return to the right end of the mounting groove 2 until the next arc-shaped support plate 12 rotates to this position, and then the magnetic block 25 will be attracted to the iron block 26, driving the slide plate 21 to move.

[0036] This invention places the product on an arc-shaped support plate. When the product moves to the detection area, it can drive the side image acquisition device to follow the product's movement. The rotating clamping component positions and clamps the product and drives it to rotate, thus enabling a comprehensive inspection of the product's appearance, avoiding blind spots in the inspection, and achieving a high degree of automation.

[0037] The clamping and rotating assembly includes a sleeve 3 fixed on a slide plate 21. Slider 31 is slidably mounted on both sides of the sleeve 3. An L-shaped rod 32 is fixed on the side of the two sliders 31 that are far apart from each other. A third spring 33 is provided between the side of the two sliders 31 that are far apart from each other and the side wall of the sleeve 3. The vertical section of the L-shaped rod 32 extends upward to correspond to the height position of the arc-shaped support plate 12 and is rotatably mounted with a rotating block 34. A clamping block 35 is fixed on the opposite side of the two rotating blocks 34. A friction ring is fixed on the outside of the rotating block 34. A friction strip 36 corresponding to the position of the friction ring is fixed on the worktable 1 through a bracket.

[0038] Guide rods 321 are fixed to the lower side of both L-shaped rods 32. A motion groove 322 is opened on the bottom wall of the mounting groove 2. Both guide rods 321 extend into the motion groove 322. Guide blocks 323 are fixed at both ends of the motion groove 322. Inclined surfaces are machined on the front and rear sides of the two guide blocks 323. The two guide blocks 321 abut against the inclined surfaces on both sides of the guide rods 323 respectively.

[0039] When the slide plate 21 is located at the right end of the mounting groove 2, the guide rod 321 connected to the L-shaped rod 32 is at this time in contact with the end of the motion groove 322, that is, the two guide rods 321 will abut against the inclined surface of the guide block 323, and the two guide rods 321 will move away from each other;

[0040] When the arc-shaped support plate 12 moves to directly below the side image acquisition unit 213, the two ends of the cylindrical product align with the two clamping blocks 35. Through the attraction of the magnetic block 25 and the iron block 26, the ring 11 and the sliding plate 21 are connected. That is, the sliding plate 21 moves synchronously with the ring 11. The two guide rods 321 will move towards the left end of the motion groove 322. At this time, the guide rods 321 will gradually disengage from the inclined surface of the guide rod 321. The elastic force of the third spring 33 pushes the two guide rods 321 closer together. When the two guide rods 321 contact the guide block 323... After the inclined plane completely disengages from contact, the third spring 33 can drive the two L-shaped rods 32 to move relative to each other, so that the two clamping blocks 35 can move relative to each other to position and clamp the two ends of the product, placing it in the middle of the arc-shaped support plate 12. As the movement continues, the rotating block 34 will come into contact with the friction strip 36. Through the contact between the friction ring and the friction strip 36, the rotating block 34 can be driven to rotate, thereby driving the cylindrical product to rotate through the clamping block 35. The side image acquisition device 213 can then perform comprehensive image acquisition of the side of the product and inspect the appearance of the product.

[0041] When the slide plate 21 drives the guide rod 321 to gradually move to the left end of the motion groove 322, the rotating block 34 disengages from the friction strip 36, and the two guide rods 321 will contact the inclined surface of the guide block 323 located at the left end of the motion groove 322, causing the two guide rods 321 to move away from each other, so that the two clamping blocks 35 can move away from each other and cancel the clamping of the product; after the two guide rods 321 move to the left end of the motion groove 322, the slide plate 21 can no longer follow the ring 11, and overcomes the attraction of the magnetic block 25, making it separate from the iron block 26. The slide plate 21 is then reset to the right end of the mounting groove 2 by the elastic force of the first spring 214, and the next arc-shaped support plate 12 moves to this position to perform appearance inspection on the next product;

[0042] In practice, a gear can be fixed on the outside of the rotating block 34, and a rack corresponding to the position of the gear can be fixed on the worktable 1 through the bracket. Through the meshing of the gear and the rack, the clamping block 35 is driven to rotate, which in turn drives the cylindrical product to rotate, so as to realize the all-round appearance inspection of the product.

[0043] The drive mechanism includes a gear ring 111 fixed to the lower side of the ring 11, and a cavity 112 is provided on the front side of the worktable 1. A gear 113 that meshes with the gear ring 111 is rotatably mounted on the upper wall of the cavity 112. A motor 114 is installed inside the cavity 112, and the output shaft of the motor 114 is connected to the gear 113 for transmission. In this way, it is only necessary to start the motor 114 to drive the gear 113 to rotate. Since the gear 113 meshes with the gear ring 111 on the lower side of the ring 11, it can drive the ring 11 to rotate slowly, so as to realize the rotation of the ring 11 on the worktable 1.

[0044] Two end image acquisition devices 4 are installed on the right side of the workbench 1 at both ends of the arc-shaped support plate 12. When the product passes by the two end image acquisition devices 4, the end image acquisition devices 4 can capture images of both ends of the cylindrical product, and then perform appearance inspection on both ends of the cylindrical product. In conjunction with the side image acquisition device 213, a comprehensive inspection of the product appearance can be performed.

[0045] A vertical rod 5 is fixed to the upper end of the ring 11. The lower side of the arc-shaped bearing plate 12 is hinged to the vertical rod 5. The lower end of the arc-shaped bearing plate 12 near the middle of the workbench 1 is provided with a slide rail 51. A movable seat 52 is slidably assembled in the slide rail 51. A support rod 53 is hinged to the lower side of the movable seat 52. The workbench 1 is provided with a circular groove 54. A push rod 55 extending into the circular groove 54 is fixed to the lower end of the support rod 53. The lower end of the push rod 55 abuts against the bottom wall of the circular groove 54. A first trapezoidal block 56 is fixed in the circular groove 54. The workbench 1 is provided with a first unloading seat 57 that matches the position of the first trapezoidal block 56.

[0046] In the initial state, the arc-shaped support plate 12 is in a horizontal state, so it can stably place cylindrical products. That is, at this time, the lower end of the push rod 55 abuts against the bottom wall of the circular groove 54. When the arc-shaped support plate 12 rotates with the ring 11, the push rod 55 will move in the circular groove 54.

[0047] A collection box can be placed under the first unloading seat 57. After the product completes the appearance inspection, the ring 11 continues to rotate. The arc-shaped support plate 12 will drive the push rod 55 to pass through the first trapezoidal block 56. When the push rod 55 passes through the first trapezoidal block 56, the push rod 55 abuts against the inclined surface of the first trapezoidal block 56, pushing the push rod 55 to move upward. Since the push rod 55 is hinged to the moving seat 52 through the support rod 53, and the moving seat 52 slides in the slide rail 51, when the push rod 55 drives the support rod 53 to move upward, it will push the arc-shaped support plate 12 to flip upward. Therefore, the product placed on the arc-shaped support plate 12 will slide down to the first unloading seat 57 by its own weight and finally enter the collection box for collection. This can realize the automatic unloading of the inspected products without the need for other electrical components.

[0048] The workbench 1 is equipped with a controller, and the side image acquisition device 213 and the end image acquisition device 4 are both connected to the controller via signals;

[0049] The workbench 1 is provided with a rectangular groove 6, and an electric telescopic rod 61 is installed in the rectangular groove 6. The output shaft of the electric telescopic rod 61 is fixed with a lifting plate 62. A second trapezoidal block 63 is installed on the upper end of the lifting plate 62. The circular groove 54 is provided with a through groove that matches the second trapezoidal block 63. The workbench 1 is provided with a second unloading seat 64 that matches the position of the second trapezoidal block 63. The electric telescopic rod 61 is electrically connected to the controller.

[0050] The side image acquisition unit 213 and the end image acquisition unit 4 transmit the acquired images to the controller. The controller is equipped with an image analysis module, which analyzes the product image and determines whether there are any defects in the product's appearance. When a defect is found, the product is deemed unqualified. The controller then controls the electric telescopic rod 61 to push out the second trapezoidal block 53 on the lifting plate 52. Therefore, the arc-shaped support plate 12 carrying the unqualified product will first pass through the second trapezoidal block 63, and then the push rod 55 will abut against the inclined surface of the second trapezoidal block 63, pushing the push rod 55 towards... The upward movement causes the arc-shaped support plate 12 to flip upward, and the product slides down onto the second unloading seat 64 by its own weight. A defective product collection box can be set on the lower side of the second unloading seat 64, so the product will slide into the defective product collection box. If the product is qualified in appearance and has no defects, the controller controls the electric telescopic rod to drive the lifting plate 52 to move downward, so that the second trapezoidal block 63 moves downward and is put into the rectangular groove 6. Therefore, the arc-shaped support plate 12 will not flip when it passes through this position. In this way, defective products can be sorted and unloaded. The structure is simple and reasonable.

[0051] A limiting slide bar 201 is fixed inside the mounting slot 2, and the slide plate 21 is slidably connected to the limiting slide bar 201. In this way, the slide plate 21 and the limiting slide bar 201 can be slidably connected, which can limit the slide plate 21 and make the slide plate 21 more stable when it moves.

[0052] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A product appearance inspection device, comprising a workbench, characterized in that: A ring is rotatably mounted on the upper side of the worktable, the ring is equipped with a driving mechanism, several evenly distributed arc-shaped bearing plates are installed on the upper side of the ring, and a detection mechanism is provided on the rear side of the worktable. The detection mechanism includes a mounting slot on the rear side of the workbench, a sliding plate slidably mounted in the mounting slot, a fixed rod connected to the rear side of the sliding plate, a mounting plate connected to the upper end of the fixed rod, a side image acquisition device mounted on the lower side of the mounting plate, a first spring between the sliding plate and the side wall of the mounting slot, a clamping and rotating assembly mounted on the sliding plate, a box mounted on one side of the sliding plate, a rectangular plate slidably mounted inside the box, a sliding rod fixed to the upper side of the rectangular plate, a magnetic block connected to the upper end of the sliding rod extending slidably out of the box, an iron block matching the position of several arc-shaped support plates mounted on the lower side of the ring, and a second spring located inside the box sleeved on the outer side of the sliding rod.

2. The product appearance inspection equipment according to claim 1, characterized in that: The clamping and rotating assembly includes a sleeve fixed to the slide plate. Slider blocks are slidably mounted on both sides of the sleeve. An L-shaped rod is fixed to one of the two sliders on the opposite side. A third spring is provided between the opposite side of the two sliders and the side wall of the sleeve. The vertical section of the L-shaped rod extends upward to correspond to the height position of the arc-shaped support plate and is rotatably mounted with a rotating block. A clamping block is fixed to one of the two rotating blocks on the opposite side. A friction ring is fixed to the outside of the rotating block. A friction strip corresponding to the position of the friction ring is fixed to the worktable by a bracket. Guide rods are fixed to the lower sides of both L-shaped rods. A motion groove is provided on the bottom wall of the mounting groove. Both guide rods extend into the motion groove. Guide blocks are fixed at both ends of the motion groove. Inclined surfaces are machined on the front and rear sides of both guide blocks. The two guide blocks abut against the inclined surfaces on both sides of the guide rods respectively.

3. The product appearance inspection equipment according to claim 1, characterized in that: The drive mechanism includes a gear ring fixed to the lower side of a circular ring, a cavity is provided on the front side of the worktable, a gear that meshes with the gear ring is rotatably mounted on the upper wall of the cavity, a motor is installed in the cavity, and the output shaft of the motor is connected to the gear transmission.

4. The product appearance inspection equipment according to claim 1, characterized in that: Two end image acquisition devices are installed on the right side of the workbench, located at both ends of the arc-shaped support plate.

5. The product appearance inspection equipment according to claim 1, characterized in that: A vertical rod is fixed to the upper end of the ring. The lower side of the arc-shaped support plate is hinged to the vertical rod. A slide rail is provided at the lower end of the arc-shaped support plate near the middle of the workbench. A movable seat is slidably assembled in the slide rail. A support rod is hinged to the lower side of the movable seat. The workbench has a circular groove. A push rod extending into the circular groove is fixed at the lower end of the support rod. The lower end of the push rod abuts against the bottom wall of the circular groove. A first trapezoidal block is fixed in the circular groove. The workbench has a first feeding seat that matches the position of the first trapezoidal block.

6. The product appearance inspection equipment according to claim 4, characterized in that: The workbench is equipped with a controller, and both the side image acquisition device and the end image acquisition device are signal-connected to the controller.

7. The product appearance inspection equipment according to claim 5, characterized in that: The workbench is provided with a rectangular slot, in which an electric telescopic rod is installed. The output shaft of the electric telescopic rod is fixed with a lifting plate. A second trapezoidal block is installed at the upper end of the lifting plate. The circular slot is provided with a through slot that matches the second trapezoidal block. The workbench is provided with a second unloading seat that matches the position of the second trapezoidal block. The electric telescopic rod is electrically connected to the controller.

8. The product appearance inspection equipment according to claim 1, characterized in that: A limiting slide bar is fixed in the mounting groove, and the slide plate is slidably connected to the limiting slide bar.

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