Appearance automatic detection device for rod workpieces

Abstract

The utility model relates to the technical field of workpiece production, and provides an automatic appearance detection device for rod workpieces, which comprises a workbench provided with a fixed seat, a feeding unit, a conveying unit, a first detection unit, a second detection unit and a sorting unit; wherein the fixed seat is used for supporting a workpiece, and the feeding unit is used for feeding the workpiece; the first detection unit is provided with a first visual detection piece, and the first visual detection piece moves in the axis direction of the workpiece to conduct visual detection on the surface of the workpiece; the second detection unit is provided with a second visual detection piece, a third visual detection piece and a rotating wheel, the rotating wheel drives the workpiece to rotate, the second visual detection piece conducts full-circumferential surface visual detection on the workpiece, and the third visual detection piece conducts visual detection on the two ends of the workpiece; the sorting unit is used for sorting the detected workpieces; through the arrangement, a complete automatic detection system is constructed; the labor cost is reduced, and the detection efficiency and the result consistency are greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of workpiece production technology, and specifically relates to an automatic appearance inspection device for rod-type workpieces. Background Technology

[0002] Rod-shaped workpieces typically refer to mechanical parts whose length is significantly greater than their cross-sectional dimensions, commonly found in the form of shafts, pins, screws, and guide rods. These workpieces can be made of metal, plastic, or other engineering materials and are widely used in various types of mechanical equipment.

[0003] During machining processes such as turning, grinding, or heat treatment, surface defects may appear on rod-shaped workpieces. To ensure product quality, these defects need to be effectively detected. Currently, the mainstream detection method still relies on manual visual inspection. While manual inspection has a certain degree of flexibility and intuitiveness, it also has many limitations, such as high labor costs and low inspection efficiency, making it difficult to meet the demands of modern manufacturing for high efficiency and large-scale production. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, the technical problem this invention aims to solve is to provide an automatic appearance inspection device for rod-shaped workpieces. This device constructs a complete automated inspection system by setting up a fixed base, a feeding unit, a conveying unit, a first inspection unit, a second inspection unit, and a sorting unit on the worktable. The entire inspection process requires no manual intervention, achieving fully automated operation from feeding and inspection to sorting. Compared with traditional manual inspection methods, this significantly reduces labor costs and greatly improves inspection efficiency and result consistency, better meeting the demands of modern manufacturing for high-efficiency, high-volume production.

[0005] The technical solution adopted by this utility model to solve its technical problem is to propose an automatic appearance inspection device for rod-shaped workpieces, including...

[0006] The workbench has fixed seats on both sides, which are used to support the workpiece.

[0007] A feeding unit is disposed on the side of the fixed base;

[0008] A conveying unit has a conveying component disposed on the fixed base, the conveying component reciprocating on the fixed base for conveying the workpiece;

[0009] The first detection unit has a first visual detection element movably disposed above the fixed base. The first visual detection element moves along the axis of the workpiece to perform visual inspection on the surface of the workpiece.

[0010] The second detection unit is located to the side of the first detection unit and has a second visual inspection component, a third visual inspection component, and rotating wheels. The rotating wheels are rotatably mounted on the fixed seats on both sides. The two ends of the workpiece are respectively placed on the rotating wheels on the fixed seats on both sides. The rotating wheels are used to drive the workpiece to rotate. The second visual inspection component is located above the rotating wheels and is used to perform full-circumference surface visual inspection of the workpiece. The third visual inspection component is arranged side by side with the rotating wheels and is used to perform visual inspection of the two ends of the workpiece.

[0011] The sorting unit is located on the side of the fixed base away from the feeding unit and is used to sort the workpieces that have completed inspection.

[0012] In the aforementioned automatic appearance inspection device for rod-shaped workpieces, the first inspection unit further includes:

[0013] A movable frame, wherein the first visual inspection component is connected to the movable frame, and the movable frame is used to move the first visual inspection component;

[0014] A first driving member, wherein the movable frame is mounted on the first driving member, and the first driving member is used to drive the movable frame to move;

[0015] The lighting component is provided on the movable frame and a second driving component is provided on the movable frame. The lighting component is connected to the output end of the second driving component. The lighting component is used to provide an illumination source for the first visual inspection component. The second driving component is used to drive the lighting component to move in the vertical direction.

[0016] In the aforementioned automatic appearance inspection device for rod-shaped workpieces, the second inspection unit further includes:

[0017] A support frame, on which the second visual inspection component is fixed;

[0018] A light-blocking plate is provided on the support frame, and a third driving component is provided on the support frame. The light-blocking plate is connected to the output end of the third driving component. The light-blocking plate is used to block external interference light. The third driving component is used to drive the light-blocking plate to move in the vertical direction.

[0019] In the above-mentioned automatic appearance inspection device for rod-shaped workpieces, two rotating wheels are rotatably arranged on each side of the fixed base, and the two ends of the workpiece are respectively placed between the two sets of rotating wheels on the two fixed bases.

[0020] In the aforementioned automatic appearance inspection device for rod-shaped workpieces, the second inspection unit further includes:

[0021] A fourth driving component is disposed on the fixed base. The output end of the fourth driving component is provided with a first pulley assembly. The first pulley assembly is connected to one of the rotating wheels. The fourth driving component drives the rotating wheel to rotate through the first pulley assembly.

[0022] The fixed base is also provided with a first guide wheel, a second guide wheel and a first belt. The first belt is wound around the two rotating wheels, the first guide wheel and the second guide wheel. The two rotating wheels and the first guide wheel move against the same side of the first belt, while the second guide wheel moves against the other side of the first belt.

[0023] When one of the rotating wheels is driven by the fourth drive member through the first pulley assembly, it is used to transmit power to the other rotating wheel via the first belt, the first guide wheel and the second guide wheel, wherein the two rotating wheels and the first guide wheel rotate in the same direction, and the second guide wheel rotates in the opposite direction.

[0024] In the aforementioned automatic appearance inspection device for rod-shaped workpieces, the feeding unit includes:

[0025] A conveyor belt is provided on the worktable. The conveyor belt has a feed channel and baffles. The feed channel is used to guide the workpiece to move in an orderly manner. The baffles are used to remove the workpiece from the conveyor belt.

[0026] A guide component is disposed on the side of the conveyor belt and has an inclined guide surface, the guide component being used to receive the workpiece sliding off the conveyor belt;

[0027] A pusher plate, which is movably disposed on the side of the guide slope away from the conveyor belt, is used to push the workpiece onto the fixed seat;

[0028] The fifth driving component has its output end connected to the push plate and is used to drive the push plate to move in the vertical direction.

[0029] In the above-mentioned automatic appearance inspection device for rod-shaped workpieces, the fixed base has a guide chute, multiple workstations and guide blocks arranged sequentially along the movement of the workpiece. The guide chute is located on the side of the fixed base near the guide component, the guide block is located on the side of the fixed base near the sorting unit, and the workstation is located between the guide block and the guide block.

[0030] In the aforementioned automatic appearance inspection device for rod-shaped workpieces, the conveying unit further includes:

[0031] The sixth driving component has a drive shaft at its output end, which is inserted into the fixed base. The sixth driving component is used to drive the drive shaft to rotate.

[0032] The second pulley assembly is disposed on the drive shaft and is connected to the conveying component in a transmission manner. The drive shaft drives the conveying component to reciprocate cyclically through the second pulley assembly.

[0033] The second rotating shaft is rotatably mounted on the fixed base and connected to the second pulley assembly;

[0034] A rotating block is sleeved on the second rotating shaft. An eccentric shaft is also connected to the rotating block. One end of the eccentric shaft is connected to the rotating block, and the other end is connected to the conveying component.

[0035] In the aforementioned automatic appearance inspection device for rod-shaped workpieces, the sorting unit includes:

[0036] The collecting component has a first collecting plate and a second collecting plate arranged in upper and lower layers. The first collecting plate is located above the second collecting plate and is used to receive the workpieces that have passed inspection. The second collecting plate has a receiving position and a pull-out position on the collecting component, and the receiving position is used to receive the unqualified workpieces.

[0037] A sorting plate is movably disposed between the collection component and the fixed base, and the sorting plate has a first working position and a second working position;

[0038] When the sorting plate is in the first working position, it is flush with the feed end of the first collecting plate and is used to guide the workpiece into the first collecting plate. When the sorting plate is in the second working position, it is flush with the feed end of the second collecting plate and is used to guide the workpiece into the second collecting plate.

[0039] A seventh driving component is provided, wherein the sorting plate is disposed at the output end of the seventh driving component, and the seventh driving component is used to drive the sorting plate to switch between the first working position and the second working position.

[0040] In the aforementioned automatic appearance inspection device for rod-shaped workpieces, the worktable is further provided with:

[0041] The slide rail, at least one of the fixed seats is slidably disposed on the slide rail;

[0042] The eighth driving component has a lead screw at its output end, which is threadedly connected to the fixed seat on the slide rail. The eighth driving component drives the fixed seat connected to it to move closer to or further away from the fixed seat on the other side along the slide rail via the lead screw.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] (1) This utility model constructs a complete automated detection system by setting a fixed seat, a feeding unit, a conveying unit, a first detection unit, a second detection unit and a sorting unit on the workbench; the entire detection process does not require manual intervention and can realize the automatic operation of the entire process from feeding, detection to sorting; compared with the traditional manual detection method, it not only significantly reduces labor costs, but also greatly improves detection efficiency and consistency of results, and can better meet the needs of modern manufacturing industry for high-efficiency and large-scale production.

[0045] (2) The first vision inspection component and the lighting component are set on the moving frame and move synchronously along the workpiece axis under the drive of the first driving component. During this process, the first vision inspection component continuously collects images of the outer surface of the workpiece to achieve a comprehensive scan of the appearance defects of the entire outer peripheral wall, such as the entire thread line, and transmits them to the control system for defect identification and analysis. At the same time, the lighting component provides uniform illumination to ensure that each inspection area obtains the best imaging conditions.

[0046] (3) In the second detection unit, when the workpiece is visually inspected by the second vision inspection component and the third vision inspection component, the rotating wheel drives the workpiece to rotate one revolution. During the rotation, the second vision inspection component and the third vision inspection component perform all-round visual inspection on the outer circumference of the workpiece, thereby achieving no dead angle inspection of the entire circumference surface and effectively avoiding the occurrence of missed inspection. Attached Figure Description

[0047] Figure 1 This is a 3D view of the proposed solution.

[0048] Figure 2 This is a three-dimensional view of the first detection unit in this scheme.

[0049] Figure 3 This is a 3D view of the hidden part of the structure of the second detection unit in this scheme.

[0050] Figure 4 yes Figure 1 A 3D view of the hidden part of the structure.

[0051] Figure 5 yes Figure 4 A 3D view of the hidden part of the structure.

[0052] Figure 6 yes Figure 5 A volumetric diagram from another direction.

[0053] Figure 7 This is a 3D view of the material feeding unit in this solution.

[0054] Figure 8 yes Figure 7 A 3D view of the hidden part of the structure.

[0055] Figure 9 This is a 3D view of the sorting unit in the first collection plate receiving state in this scheme.

[0056] Figure 10 This is a 3D view of the sorting unit in the second collection plate receiving state in this scheme.

[0057] Figure 11 This is a 3D view of the second collection item being pulled out of the sorting unit in this scheme.

[0058] In the diagram, 1. Workbench; 2. Fixed base; 3. Feeding unit; 4. Conveying unit; 5. Conveying component; 6. First inspection unit; 7. First vision inspection component; 8. Second inspection unit; 9. Second vision inspection component; 10. Third vision inspection component; 11. Rotating wheel; 12. Sorting unit; 13. Moving frame; 14. First drive component; 15. Lighting component; 16. Second drive component; 17. Support frame; 18. Light shield; 19. Third drive component; 20. Fourth drive component; 21. First guide wheel; 22. Second guide wheel; 23. First belt; 24. First driven wheel; 25. Second belt. 26. Conveyor belt; 27. Material channel; 28. Baffle; 29. ​​Guide component; 30. Guide ramp; 31. Push plate; 32. Fifth drive component; 33. Guide chute; 34. Station; 35. Guide block; 36. Sixth drive component; 37. Drive shaft; 38. Second pulley assembly; 39. Rotating block; 40. Eccentric shaft; 41. Second driving wheel; 42. Second driven wheel; 43. Third belt; 44. Collector; 45. First collecting plate; 46. Second collecting plate; 47. Sorting plate; 48. Seventh drive component; 49. Slide rail; 50. Eighth drive component; 51. Lead screw. Detailed Implementation

[0059] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0060] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0061] like Figures 1 to 11As shown, this solution provides an automatic appearance inspection device for rod-shaped workpieces, comprising: a worktable 1, with fixed seats 2 on both sides of the worktable 1, the fixed seats 2 providing support for the workpiece; a loading unit 3, disposed on the side of the fixed seats 2; a conveying unit 4, having a conveying component 5 disposed on the fixed seats 2, the conveying component 5 reciprocating on the fixed seats 2 for conveying the workpiece; a first inspection unit 6, having a first visual inspection component 7 movably disposed above the fixed seats 2, the first visual inspection component 7 moving along the workpiece axis for visual inspection of the workpiece surface; and a second inspection unit. 8, located to the side of the first detection unit 6, has a second visual inspection element 9, a third visual inspection element 10, and a rotating wheel 11. The rotating wheel 11 is rotatably mounted on the fixed seats 2 on both sides. The two ends of the workpiece are respectively placed on the rotating wheels 11 on the fixed seats 2 on both sides. The rotating wheel 11 is used to drive the workpiece to rotate. The second visual inspection element 9 is used to perform full-circumference surface visual inspection of the workpiece. The third visual inspection element 10 is arranged side by side with the rotating wheel 11 and is used to perform visual inspection on both ends of the workpiece. The sorting unit 12 is located on the side of the fixed seat 2 away from the feeding unit 3 and is used to sort the workpieces that have been inspected.

[0062] During operation, the workpiece is fed into the fixed seat 2 by the feeding unit 3, and the conveying component 5 reciprocates periodically on the fixed seat 2 to transport the workpiece. First, the workpiece is transported to the position of the first detection unit 6, at which point the workpiece is within the detection range of the first visual inspection component 7. The first visual inspection component 7 moves along the workpiece axis under the drive of the first detection unit 6 to scan the appearance defects of the entire outer circumference of the workpiece, such as the entire thread line. After completing the first stage of inspection, the conveying component 5 transfers the workpiece to the position of the rotating wheel 11 on the fixed seat 2 and places it stably between the two rotating wheels 11. Subsequently, the second detection unit 8 drives the rotating wheel 11 to rotate, causing the workpiece to rotate synchronously for one revolution. In this process, the second visual inspection component 9 performs full-circumference visual inspection on the outer circumference of the workpiece to identify surface defects; the third visual inspection component 10 performs visual inspection on the parts of the workpiece extending from the rotating wheels 11 at both ends to ensure that no area of ​​the workpiece is missed during inspection; the entire inspection process is highly automated and can be completed efficiently without human intervention; compared with traditional manual inspection methods, it not only significantly reduces labor costs, but also greatly improves inspection efficiency and consistency of results, and can better meet the needs of modern manufacturing for high-speed, large-volume production; wherein, the first visual inspection component 7, the second visual inspection component 9 and the third visual inspection component 10 can be industrial cameras or other image acquisition devices.

[0063] Furthermore, the first detection unit 6 also includes: a movable frame 13, on which the first visual inspection element 7 is connected, and the movable frame 13 is used to drive the first visual inspection element 7 to move; a first driving element 14, on which the movable frame 13 is disposed, and the first driving element 14 is used to drive the movable frame 13 to move; and an illumination element 15, on which the movable frame 13 is disposed, and a second driving element 16 is disposed, and the illumination element 15 is connected to the output end of the second driving element 16 to provide an illumination source for the first visual inspection element 7, and the second driving element 16 is used to drive the illumination element 15 to move in the vertical direction.

[0064] When the transporter 5 transports the workpiece to the location of the first detection unit 6, firstly, the second drive unit 16 is activated, driving the lighting element 15 to descend vertically until it reaches the preset lighting height, at which point the second drive unit 16 stops driving. Subsequently, the first drive unit 14 is activated, driving the moving frame 13 to move horizontally, so that the lighting element 15 and the first visual inspection element 7 on the moving frame 13 move synchronously along the workpiece axis. During this process, the first visual inspection element 7 continuously acquires images of the workpiece surface to achieve a comprehensive scan of the appearance defects around the entire outer perimeter, such as the entire thread line, and transmits the data to the control system for defect identification and analysis. At the same time, the lighting element 15 provides uniform illumination to ensure that each detection area obtains the best imaging conditions. After the detection is completed, the first drive unit 14 and the second drive unit 16 respectively drive the moving frame 13 and the lighting element 15 back to their initial positions to prepare for the next detection and to ensure that they do not interfere with the transporter 5's transport of subsequent workpieces. The first drive unit 14 can be a motor, hydraulic cylinder, or pneumatic cylinder, and the second drive unit 16 is preferably a linear guide rail. The lighting element 15 can be a lamp tube, LED light source, or other suitable lighting device.

[0065] Furthermore, the second detection unit 8 also includes: a support frame 17, on which the second visual detection component 9 is fixed; a light-blocking plate 18, on which a third driving component 19 is provided, the light-blocking plate 18 is connected to the output end of the third driving component 19, the light-blocking plate 18 is used to block external interference light; the third driving component 19 is used to drive the light-blocking plate 18 to move in the vertical direction.

[0066] The workpiece that has completed the first stage of inspection is conveyed by the transporter 5 to the rotating wheel 11 on the fixed seat 2 and is placed stably between the two rotating wheels 11. Then, the third drive unit 19 is activated, driving the light-blocking plate 18 to descend vertically to a preset height. At this time, the light-blocking plate 18 effectively isolates external ambient light interference, ensuring the stability of illumination during image acquisition. Next, the second detection unit 8 drives the rotating wheel 11 to rotate, causing the workpiece to rotate synchronously for one revolution. During this process, the second vision inspection unit 9 performs full-circumference vision inspection on the outer circumference of the workpiece. At the same time, the light-blocking plate 18 continuously blocks external interference light, ensuring the consistency and accuracy of image acquisition. In addition, the third vision inspection unit 10 performs end inspection on the parts of the workpiece that extend from the rotating wheels 11 at both ends, ensuring that there are no blind spots on the entire workpiece surface and realizing all-round appearance defect identification. The third drive unit 19 can be a motor, hydraulic cylinder, or pneumatic cylinder.

[0067] Furthermore, each fixed seat 2 on each side is rotatably equipped with two rotating wheels 11, and the two ends of the workpiece are placed between the two sets of rotating wheels 11 on the two fixed seats 2 respectively. When the conveying component 5 transports the workpiece onto the rotating wheels 11, the axis of the workpiece is aligned with the axis of rotation of the rotating wheels 11. When the rotating wheels 11 rotate under the drive of the second detection unit 8, the workpiece is driven to rotate synchronously through friction. The structural design of setting two rotating wheels 11 on each fixed seat 2 not only provides good support for the workpiece, but also effectively improves its stability during rotation, thereby ensuring the continuity of the image acquisition process and the accuracy of the detection results.

[0068] Furthermore, the second detection unit 8 also includes: a fourth driving member 20, which is mounted on the fixed base 2. The output end of the fourth driving member 20 is provided with a first pulley assembly, which is connected to one of the rotating wheels 11. The fourth driving member 20 drives the rotating wheel 11 to rotate through the first pulley assembly. The fixed base 2 is also provided with a first guide wheel 21, a second guide wheel 22, and a first belt 23. The first belt 23 is wound around the two rotating wheels 11, the first guide wheel 21, and the second guide wheel 22. The two rotating wheels 11 and the first guide wheel 21 move against one side of the first belt 23, while the second guide wheel 22 moves against the other side of the first belt 23.

[0069] During operation, after the workpiece is placed on the rotating wheel 11, the fourth drive component 20 is activated, driving one of the rotating wheels 11 to rotate via the first pulley assembly. As this rotating wheel 11 rotates, power is transmitted to the other rotating wheel 11 via the first belt 23, the first guide wheel 21, and the second guide wheel 22, thus achieving synchronous rotation of the two rotating wheels 11. The rotation of the two rotating wheels 11 drives the workpiece to rotate synchronously through friction. During this process, the rotation direction of the two rotating wheels 11 and the first guide wheel 21 is the same, while the rotation direction of the second guide wheel 22 is opposite. The rotation is achieved through the first guide wheel 21 and the second guide wheel 22... The design effectively adjusts the tension of the first belt 23 and changes the transmission path, making the layout of the entire drive system more compact and reasonable, facilitating maintenance and adjustment, adapting to the inspection needs of workpieces of different specifications, and improving the versatility and expandability of the device. This solution achieves precise control of the workpiece rotation by setting up a linkage mechanism composed of the fourth drive component 20, the first pulley assembly, the first belt 23, the first guide wheel 21, and the second guide wheel 22. The belt drive method not only has a simple structure and smooth operation, but also effectively reduces impact and improves the reliability of the system operation. The fourth drive component 20 is preferably a rotary motor.

[0070] The first pulley assembly includes: a first driving pulley, located at the output end of the fourth driving member 20; a first driven pulley 24, which is connected to the first driving pulley via a second belt 25; and a first rotating shaft, one end of which is connected to the first driven pulley 24 and the other end of which is connected to one of the rotating pulleys 11. When the fourth driving member 20 is started, it drives the first driving pulley to rotate. The rotational motion of the first driving pulley is transmitted to the first driven pulley 24 via the second belt 25. The first driven pulley 24 then transmits the power to the corresponding rotating pulley 11 via the first rotating shaft, thereby achieving synchronous rotation of the rotating pulleys 11.

[0071] Furthermore, the feeding unit 3 includes: a conveyor belt 26, which is disposed on the workbench 1, the conveyor belt 26 having a material channel 27 and a baffle 28, the material channel 27 being used to guide the workpiece to move in an orderly manner, and the baffle 28 being used to block the workpiece from continuing to move forward, causing it to leave the conveyor belt 26; a guide member 29, which is disposed on the side of the conveyor belt 26 and has an inclined guide slope 30, the guide member 29 being used to receive the workpiece that slips off the conveyor belt 26; a pusher plate 31, which is movably disposed on the side of the guide slope 30 away from the conveyor belt 26, for pushing the workpiece onto the fixed seat 2; and a fifth drive member 32, whose output end is connected to the pusher plate 31, for driving the pusher plate 31 to move in the vertical direction.

[0072] During operation, the workpiece is fed into the feed channel 27 manually or by upstream equipment and is conveyed forward by the conveyor belt 26. When the workpiece reaches the position of the baffle 28 and comes into contact with it, it cannot continue to move forward due to the obstruction of the baffle 28. Under the continuous operation of the conveyor belt 26, the workpiece deviates and leaves the conveyor belt 26, sliding onto the guide slope 30 of the guide component 29. The workpiece slides down the guide slope 30 to the position of the push plate 31 by its own gravity. At this time, the fifth drive component 32 is activated, driving the push plate 31 to move upward and smoothly push the workpiece onto the fixed seat 2, completing the loading process. The fifth drive component 32 can be a motor, hydraulic cylinder, or pneumatic cylinder.

[0073] Furthermore, the fixed base 2 is provided with a guide chute 33, multiple workstations 34, and guide blocks 35 arranged sequentially along the workpiece movement direction; the guide chute 33 is located on the side of the fixed base 2 near the guide component 29, and is used to receive the workpiece pushed by the push plate 31; the guide block 35 is located on the side of the fixed base 2 near the sorting unit 12, and is used to guide the workpiece into the sorting unit 12; multiple workstations 34 are distributed between the guide chute 33 and the guide block 35; the conveying component 5 performs periodic reciprocating motion on the fixed base 2, thereby realizing the continuous transfer of the workpiece from the guide chute 33 through each workstation 34 to the guide block 35, ensuring the efficient and stable operation of the inspection process.

[0074] Furthermore, the conveying unit 4 also includes: a sixth driving member 36, the output end of which is provided with a driving shaft 37, which is inserted into the fixed base 2, and the sixth driving member 36 is used to drive the driving shaft 37 to rotate; a second pulley assembly 38, which is disposed on the driving shaft 37 and is connected to the conveying member 5 for transmission, and the driving shaft 37 drives the conveying member 5 to reciprocate through the second pulley assembly 38; a second rotating shaft, which is rotatably disposed on the fixed base 2 and connected to the second pulley assembly 38; and a rotating block 39, which is sleeved on the second rotating shaft, and an eccentric shaft 40 is also connected to the rotating block 39, one end of which is connected to the rotating block 39 and the other end is connected to the conveying member 5.

[0075] The second rotating shaft, the rotating block 39, and the eccentric shaft 40 form an eccentric transmission structure. When the second rotating shaft rotates around its own axis, the eccentric shaft 40 rotates together with the rotating block 39 and, under its eccentric action, drives the conveying component 5 to perform periodic reciprocating motion on the fixed seat 2, thereby realizing the orderly transfer of workpieces on the fixed seat 2 and achieving efficient and precise material transfer.

[0076] During operation, after the workpiece is pushed and conveyed by the feeding pusher plate 31 onto the guide chute 33 on the fixed seat 2, the sixth drive component 36 is activated, driving the drive shaft 37 to rotate. The drive shaft 37 transmits power to the second rotating shaft through the second pulley assembly 38. The rotating block 39 is sleeved on the second rotating shaft and rotates synchronously with the rotating shaft, thereby driving the eccentric shaft 40 to rotate around the axis of the second rotating shaft. The eccentric structure of the eccentric shaft 40 drives the conveying component 5 to reciprocate on the fixed seat 2. When the eccentric shaft 40 rotates with the rotating block 39 to a specific angle, it pushes the conveying component 5 to swing forward, thereby conveying the workpiece onto the fixed seat 2. When the eccentric shaft 40 continues to rotate and completes half a cycle of motion and returns to the initial position, the conveying component 5 also resets, ready for the next pushing operation. The sixth drive component 36 is preferably a rotary motor.

[0077] The second pulley assembly 38 includes: a second drive shaft, which is sleeved on the drive shaft 37; and a second driven pulley 42, which is connected to the second drive pulley 41 via a third belt 43, and the second driven pulley 42 is sleeved on the second rotating shaft. During operation, since the second drive pulley 41 is sleeved on the drive shaft 37, when the sixth drive member 36 drives the drive shaft 37 to rotate, the second drive shaft rotates synchronously and transmits power to the second driven pulley 42 via the third belt 43, causing the second driven pulley 42 to rotate synchronously. Since the second driven pulley 42 is sleeved on the second rotating shaft, the rotation of the second driven pulley 42 drives the second rotating shaft to rotate around its own axis, thereby achieving effective power transmission.

[0078] Further, the sorting unit 12 includes: a collection component 44, which has a first collection plate 45 and a second collection plate 46 arranged in upper and lower layers. The first collection plate 45 is located above the second collection plate 46 and is used to receive qualified workpieces. The second collection plate 46 has a receiving position and a pull-out position on the collection component 44. The receiving position is used to receive unqualified workpieces. A sorting plate 47 is movably arranged between the collection component 44 and the fixed base 2. The sorting plate 47 has a first working position and a second working position. A seventh driving component 48 is arranged at the output end of the seventh driving component 48. The seventh driving component 48 operates according to the detection results of the first visual inspection component 7, the second visual inspection component 9 and the third visual inspection component 10, driving the sorting plate 47 to switch between the first working position and the second working position.

[0079] During operation, workpieces that have completed all inspection steps are driven by the conveyor 5 and flow into the sorting unit 12 along the guide block 35 on the fixed seat 2. The control system determines whether the workpiece is qualified based on the feedback from the first visual inspection component 7, the second visual inspection component 9, and the third visual inspection component 10, and drives the sorting plate 47 to switch to the corresponding position by the seventh drive component 48: if it is a qualified product, the sorting plate 47 switches to the first working position, so that the workpiece slides into the first collection plate 45 along its surface; if it is an unqualified product, the sorting plate 47 switches to the second working position, so that the workpiece slides into the second collection plate 46. In addition, the second collection plate 46 is designed to be pull-out, which makes it convenient for operators to periodically remove unqualified workpieces, improving the maintenance convenience and operational continuity of the equipment. The seventh drive component 48 can be a motor, hydraulic cylinder, or pneumatic cylinder.

[0080] Furthermore, the worktable 1 is also equipped with: a slide rail 49, which is set on the worktable 1 to guide at least one fixed seat 2 to slide along a set direction; an eighth drive member 50, which is installed on the worktable 1, and its output end is connected to a lead screw 51, which is threadedly connected to the fixed seat 2 on the slide rail 49; when the eighth drive member 50 is running, the lead screw 51 rotates and drives the fixed seat 2 connected to it to move along the slide rail 49, so that it moves closer to or away from the fixed seat 2 on the other side, thereby adapting to workpieces of different length specifications; by setting an adjustment mechanism composed of the slide rail 49 and the eighth drive member 50 on the worktable 1, the automatic adjustment function of the distance between the fixed seats 2 on both sides is realized, so that the device can flexibly adapt to the inspection needs of workpieces of various length specifications.

[0081] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0082] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0083] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An automatic appearance inspection device for rod-shaped workpieces, characterized in that, include: The workbench has fixed seats on both sides, which are used to support the workpiece. A feeding unit is disposed on the side of the fixed base; A conveying unit has a conveying component disposed on the fixed base, the conveying component reciprocating on the fixed base for conveying the workpiece; The first detection unit has a first visual detection element movably disposed above the fixed base. The first visual detection element moves along the axis of the workpiece to perform visual inspection on the surface of the workpiece. The second detection unit is located to the side of the first detection unit and has a second visual inspection component, a third visual inspection component, and rotating wheels. The rotating wheels are rotatably mounted on the fixed seats on both sides. The two ends of the workpiece are respectively placed on the rotating wheels on the fixed seats on both sides. The rotating wheels are used to drive the workpiece to rotate. The second visual inspection component is located above the rotating wheels and is used to perform full-circumference surface visual inspection of the workpiece. The third visual inspection component is arranged side by side with the rotating wheels and is used to perform visual inspection of the two ends of the workpiece. The sorting unit is located on the side of the fixed base away from the feeding unit and is used to sort the workpieces that have completed inspection.

2. The automatic appearance inspection device for rod-shaped workpieces as described in claim 1, characterized in that, The first detection unit further includes: A movable frame, wherein the first visual inspection component is connected to the movable frame, and the movable frame is used to move the first visual inspection component; A first driving member, wherein the movable frame is mounted on the first driving member, and the first driving member is used to drive the movable frame to move; The lighting component is provided on the movable frame and a second driving component is provided on the movable frame. The lighting component is connected to the output end of the second driving component. The lighting component is used to provide an illumination source for the first visual inspection component. The second driving component is used to drive the lighting component to move in the vertical direction.

3. The automatic appearance inspection device for rod-shaped workpieces as described in claim 1, characterized in that, The second detection unit further includes: A support frame, on which the second visual inspection component is fixed; A light-blocking plate is provided on the support frame, and a third driving component is provided on the support frame. The light-blocking plate is connected to the output end of the third driving component. The light-blocking plate is used to block external interference light. The third driving component is used to drive the light-blocking plate to move in the vertical direction.

4. The automatic appearance inspection device for rod-shaped workpieces as described in claim 1, characterized in that, Two rotating wheels are rotatably mounted on each of the fixed seats on both sides, and the two ends of the workpiece are respectively placed between the two sets of rotating wheels on the fixed seats on both sides.

5. The automatic appearance inspection device for rod-shaped workpieces as described in claim 4, characterized in that, The second detection unit further includes: A fourth driving component is disposed on the fixed base. The output end of the fourth driving component is provided with a first pulley assembly. The first pulley assembly is connected to one of the rotating wheels. The fourth driving component drives the rotating wheel to rotate through the first pulley assembly. The fixed base is also provided with a first guide wheel, a second guide wheel and a first belt. The first belt is wound around the two rotating wheels, the first guide wheel and the second guide wheel. The two rotating wheels and the first guide wheel move against the same side of the first belt, while the second guide wheel moves against the other side of the first belt. When one of the rotating wheels is driven by the fourth drive member through the first pulley assembly, it is used to transmit power to the other rotating wheel via the first belt, the first guide wheel and the second guide wheel, wherein the two rotating wheels and the first guide wheel rotate in the same direction, and the second guide wheel rotates in the opposite direction.

6. The automatic appearance inspection device for rod-shaped workpieces as described in claim 1, characterized in that, The feeding unit includes: A conveyor belt is provided on the worktable. The conveyor belt has a feed channel and baffles. The feed channel is used to guide the workpiece to move in an orderly manner. The baffles are used to remove the workpiece from the conveyor belt. A guide component is disposed on the side of the conveyor belt and has an inclined guide surface, the guide component being used to receive the workpiece that slides off the conveyor belt; A pusher plate, which is movably disposed on the side of the guide slope away from the conveyor belt, is used to push the workpiece onto the fixed seat; The fifth driving component has its output end connected to the push plate and is used to drive the push plate to move in the vertical direction.

7. The automatic appearance inspection device for rod-shaped workpieces as described in claim 6, characterized in that, The fixed base has a guide chute, multiple workstations, and guide blocks arranged sequentially along the movement of the workpiece. The guide chute is located on the side of the fixed base near the guide component, the guide block is located on the side of the fixed base near the sorting unit, and the workstation is located between the guide block and the guide block.

8. The automatic appearance inspection device for rod-shaped workpieces as described in claim 7, characterized in that, The transport unit also includes: The sixth driving component has a drive shaft at its output end, which is inserted into the fixed base. The sixth driving component is used to drive the drive shaft to rotate. The second pulley assembly is disposed on the drive shaft and is connected to the conveying component in a transmission manner. The drive shaft drives the conveying component to reciprocate cyclically through the second pulley assembly. The second rotating shaft is rotatably mounted on the fixed base and connected to the second pulley assembly; A rotating block is sleeved on the second rotating shaft. An eccentric shaft is also connected to the rotating block. One end of the eccentric shaft is connected to the rotating block, and the other end is connected to the conveying component.

9. The automatic appearance inspection device for rod-shaped workpieces as described in claim 1, characterized in that, The sorting unit includes: The collecting component has a first collecting plate and a second collecting plate arranged in upper and lower layers. The first collecting plate is located above the second collecting plate and is used to receive the workpieces that have passed inspection. The second collecting plate has a receiving position and a pull-out position on the collecting component, and the receiving position is used to receive the unqualified workpieces. A sorting plate is movably disposed between the collection component and the fixed base, and the sorting plate has a first working position and a second working position; When the sorting plate is in the first working position, it is flush with the feed end of the first collecting plate and is used to guide the workpiece into the first collecting plate. When the sorting plate is in the second working position, it is flush with the feed end of the second collecting plate and is used to guide the workpiece into the second collecting plate. A seventh driving component is provided, wherein the sorting plate is disposed at the output end of the seventh driving component, and the seventh driving component is used to drive the sorting plate to switch between the first working position and the second working position.

10. The automatic appearance inspection device for rod-shaped workpieces as described in claim 1, characterized in that, The workbench is also equipped with: The slide rail, at least one of the fixed seats is slidably disposed on the slide rail; The eighth driving component has a lead screw at its output end, which is threadedly connected to the fixed seat on the slide rail. The eighth driving component drives the fixed seat connected to it to move closer to or further away from the fixed seat on the other side along the slide rail via the lead screw.

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