Automatic detection device for shaft workpieces

Abstract

The utility model relates to the technical field of workpiece production, and provides an automatic detection device for shaft workpieces, which comprises a feeding unit, a first detection unit, a conveying unit, a second detection unit, a third detection unit, a fourth detection unit and a sorting unit, and realizes full-automatic operation from feeding to final classification of the shaft workpieces. The detection efficiency is obviously improved; wherein the first detection unit is used for carrying out visual detection on a workpiece, the second detection unit is used for carrying out length dimension detection on the workpiece, and automatic transfer of the workpiece is realized through switching of the rotating seat between a first working position and a second working position; the third detection unit is used for performing eddy current flaw detection on the workpiece; the fourth detection unit is used for detecting the eccentricity of the workpiece; through a method of combining multiple detection modes, the quality condition of the shaft workpiece can be comprehensively and accurately evaluated, and it is ensured that each outgoing product meets the high-standard quality requirement.

Description

Technical Field

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

[0002] Shaft-type workpieces refer to a class of workpieces that serve to support, transmit power, or move motion in mechanical structures. Their main characteristic is that they have one or more axes of rotation. These workpieces are typically designed in cylindrical or other rotating shapes and are used in mechanical equipment to connect different components, enabling the transmission of force and motion. Shaft-type workpieces have a wide range of applications, including but not limited to the automotive, aerospace, shipbuilding, machine tool, and motor industries.

[0003] In the manufacturing process of shaft-type workpieces, comprehensive and high-precision quality inspection before shipment is an essential step to ensure the overall quality and performance of the products. However, in many traditional production operations, quality inspection still relies primarily on manual operation. Although manual inspection can meet basic quality control requirements to some extent, the process is cumbersome and time-consuming, usually requiring each workpiece to be inspected individually. Especially in mass production scenarios, companies often need to arrange multiple quality inspectors to work in shifts, which not only significantly increases labor costs but also limits the improvement of inspection efficiency. In addition, manual inspection also suffers from problems such as large human error and inconsistent inspection standards, making it difficult to achieve comprehensive and accurate control over the entire inspection process and various parameters. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, the technical problem this invention aims to solve is as follows: It proposes an automatic inspection device for shaft-type workpieces. Through a feeding unit, a first inspection unit, a conveying unit, a second inspection unit, a third inspection unit, a fourth inspection unit, and a sorting unit, it achieves fully automated operation of shaft-type workpieces from feeding to final classification, greatly improving the efficiency of the entire inspection process. By combining multiple inspection methods such as visual inspection, length dimension inspection, eddy current flaw detection, and eccentricity detection, it can comprehensively and accurately assess the quality status of shaft-type workpieces, ensuring that every product leaving the factory meets high-standard quality requirements.

[0005] The technical solution adopted by this utility model to solve its technical problem is to propose an automatic detection device for shaft-type workpieces, comprising:

[0006] Feeding unit;

[0007] The first detection unit is located on the side of the movement path of the shaft workpiece and is used to perform visual inspection on the shaft workpiece.

[0008] A conveying unit is disposed on the moving path of the shaft workpiece and is used to convey the shaft workpiece after visual inspection.

[0009] The second detection unit is disposed to the side of the first detection unit. The second detection unit has a rotating seat that is rotatably disposed, and the rotating seat has a first working position and a second working position.

[0010] When the rotating seat is in the first working position, it is used to receive the shaft-like workpiece transported by the conveying unit, and the second detection unit is used to detect the length of the shaft-like workpiece on the rotating seat in the first working position; when the rotating seat is in the second working position, it is used to position the shaft-like workpiece on it in the gripping position of the conveying unit.

[0011] The third detection unit is located to the side of the second detection unit and is used to perform eddy current flaw detection on the shaft workpiece.

[0012] The fourth detection unit is located to the side of the third detection unit and is used to detect the eccentricity of the shaft workpiece.

[0013] The sorting unit is located to the side of the fourth detection unit and is used to classify and sort the shaft-type workpieces that have completed the detection.

[0014] In the aforementioned automatic inspection device for shaft-type workpieces, the feeding unit includes:

[0015] silos;

[0016] A push plate is movably inserted into the bottom of the hopper and fits against one inner wall of the hopper. The push plate is used to push the shaft-type workpiece out of the hopper.

[0017] The first driving component has a push plate whose end away from the hopper is connected to the output end of the first driving component, and the first driving component is used to drive the push plate to rise and fall.

[0018] The first conveyor belt has a guide slope on one side of the hopper, and is located below the guide slope. It is used to receive and transport the shaft-type workpiece that slides down from the guide slope.

[0019] In the aforementioned automatic inspection device for shaft-type workpieces, the first inspection unit includes:

[0020] The first support is located on the side of the first conveyor belt;

[0021] A first visual inspection component is disposed on the first support and located above the first conveyor belt, for visual inspection of the shaft-type workpieces on the conveyor belt.

[0022] A push block is located on one side of the first conveyor belt and moves against the shaft-type workpiece on the first conveyor belt. The push block is used to push the shaft-type workpiece that does not meet the visual inspection requirements away from the first conveyor belt.

[0023] A first collecting member is disposed opposite to the push block and located on the side of the first conveyor belt away from the first support. The first collecting member is used to receive the shaft-type workpiece that has been pushed away from the first conveyor belt.

[0024] The second driving member is disposed on the first support base and electrically connected to the first vision detection member. The push block is connected to the output end of the second driving member, and the second driving member is used to drive the push block to move.

[0025] In the aforementioned automatic inspection device for shaft-type workpieces, the conveying unit includes:

[0026] The first pneumatic gripper is movably disposed above the first conveyor belt and the rotating seat, and is used to transport the shaft-type workpiece that has passed visual inspection on the first conveyor belt to the rotating seat;

[0027] The second pneumatic gripper is arranged in parallel with the first pneumatic gripper. When the shaft workpiece is gripped by the first pneumatic gripper and the second pneumatic gripper respectively, the axial directions of the shaft workpiece are perpendicular to each other. The second pneumatic gripper is used to grip the shaft workpiece on the rotating seat and transport it.

[0028] The third driving unit has a movable base at its output end. The first pneumatic gripper and the second pneumatic gripper are both connected to the movable base. The third driving unit drives the first pneumatic gripper and the second pneumatic gripper to move up and down in the vertical direction through the movable base.

[0029] A fourth driving member, wherein the third driving member is connected to the fourth driving member, and the fourth driving member is used to drive the third driving member to move in the horizontal direction.

[0030] In the aforementioned automatic inspection device for shaft-type workpieces, the second inspection unit includes:

[0031] The second support is located to the side of the first conveyor belt;

[0032] The fifth driving member is disposed on the second support base, and the rotating base is connected to the output end of the fifth driving member. The fifth driving member is used to drive the rotating base to switch between the first working position and the second working position.

[0033] The second visual inspection component is disposed opposite to the rotating seat and is used to perform visual inspection on the shaft-type workpiece.

[0034] In the aforementioned automatic inspection device for shaft-type workpieces, the third inspection unit includes:

[0035] The third support has a first support platform located on the moving path of the shaft workpiece, the first support platform being used to receive the shaft workpiece transported by the second pneumatic gripper;

[0036] The third support base is also provided with a first rotating shaft and a first abutting shaft arranged symmetrically. The first rotating shaft and the first abutting shaft are respectively movably abutting against both ends of the shaft workpiece. The first rotating shaft is used to drive the shaft workpiece to rotate, and the first abutting shaft is used to provide support for the shaft workpiece.

[0037] The first test piece, located to the side of the first support platform, is used to perform eddy current flaw detection on the shaft-type workpiece.

[0038] The sixth driving component is connected to the output end of the first rotating shaft, and the sixth driving component is used to drive the first rotating shaft to rotate.

[0039] The third support base is also provided with a seventh driving member and an eighth driving member arranged opposite to each other. The sixth driving member is connected to the seventh driving member, and the first abutting shaft is connected to the output end of the eighth driving member. The seventh driving member is used to drive the sixth driving member to move, and the eighth driving member is used to drive the first abutting shaft to move closer to or away from the shaft-type workpiece.

[0040] In the aforementioned automatic inspection device for shaft-type workpieces, the fourth inspection unit includes:

[0041] A fourth support base, located to the side of the third support base, has a second support platform for receiving the shaft-type workpiece after eddy current testing.

[0042] The fourth support base is also provided with a symmetrically arranged second rotating shaft and a second abutting shaft. The second rotating shaft and the second abutting shaft are respectively movably abutting against both ends of the shaft workpiece. The second rotating shaft is used to drive the shaft workpiece to rotate, and the second abutting shaft is used to provide support for the shaft workpiece.

[0043] The second detection element is located to the side of the second support platform. The second detection element is used to contact the surface of the shaft workpiece to detect eccentricity.

[0044] The ninth driving member, wherein the second rotating shaft is connected to the output end of the ninth driving member, and the ninth driving member is used to drive the second rotating shaft to rotate;

[0045] The fourth support base is also provided with a tenth driving member and an eleventh driving member arranged opposite to each other. The ninth driving member is connected to the output end of the tenth driving member, and the second abutting shaft is connected to the output end of the eleventh driving member. The tenth driving member is used to drive the ninth driving member to move, and the eleventh driving member is used to drive the second abutting shaft to move closer to or away from the shaft-type workpiece.

[0046] The twelfth driving member, wherein the second detection member is disposed on the twelfth driving member, the twelfth driving member being used to drive the second detection member closer to or away from the shaft-type workpiece;

[0047] The thirteenth driving component is disposed on the twelfth driving component and is used to drive the twelfth driving component to move.

[0048] In the aforementioned automatic inspection device for shaft-type workpieces, the sorting unit includes:

[0049] The second and third collecting components are arranged opposite to each other, and both the second and third collecting components are located to the side of the fourth support. The second collecting component is used to receive the shaft-type workpieces with unqualified length dimensions, and the third collecting component is used to receive the shaft-type workpieces with unqualified internal structure and eccentricity.

[0050] The material distribution component is rotatably disposed between the second collecting component and the third collecting component, and has a first part and a second part that are raised and lowered, with a V-shaped placement groove formed between the first part and the second part;

[0051] The material distribution component has a third working position and a fourth working position. When the material distribution component is in the third working position, it is used to receive the shaft-type workpiece and provide support for it.

[0052] When the material distribution component is in the fourth working position and the first part descends, it is used to allow the shaft-type workpiece to fall into the second collecting component; when the material distribution component is in the fourth working position and the second part descends, it is used to allow the shaft-type workpiece to fall into the third collecting component.

[0053] In the aforementioned automatic inspection device for shaft-type workpieces, the sorting assembly further includes:

[0054] The fourteenth driving component has a rotating frame at its output end. The material distribution component is mounted on the rotating frame. The fourteenth driving component can switch the material distribution component from the third working position to the fourth working position through the rotating frame if the shaft workpiece on the V-shaped placement groove is a defective product.

[0055] The fifteenth driving member is disposed on the rotating frame, and the first part is connected to the output end of the fifteenth driving member. The fifteenth driving member is used to drive the first part to move up and down.

[0056] The sixteenth drive unit is disposed on the rotating frame and arranged in parallel with the sixteenth drive unit. The second part is connected to the output end of the sixteenth drive unit, and the sixteenth drive unit is used to drive the second part to rise and fall.

[0057] In the above-mentioned automatic inspection device for shaft-type workpieces, the sorting component further includes: a second conveyor belt located to the side of the second and third collection components; the second pneumatic gripper can pick up and transport the shaft-type workpiece on the sorting component in the third working position as a qualified product, and transport it to the second conveyor belt; the second conveyor belt is used to transport the qualified shaft-type workpiece to a designated position.

[0058] Compared with the prior art, the present invention has the following beneficial effects:

[0059] (1) Through the feeding unit, the first inspection unit, the conveying unit, the second inspection unit, the third inspection unit, the fourth inspection unit and the sorting unit, the fully automated operation of shaft workpieces from feeding to final classification is realized, which significantly improves the inspection efficiency. Among them, the first inspection unit is used to perform visual inspection on the workpiece, the second inspection unit is used to perform length dimension inspection on the workpiece, and the automatic transfer of the workpiece is realized by switching the rotating seat between the first and second working positions. The third inspection unit is used to perform eddy current flaw detection on the workpiece, and the fourth inspection unit is used to detect the eccentricity of the workpiece. By combining multiple inspection methods, the quality status of shaft workpieces can be comprehensively and accurately evaluated, ensuring that every product leaving the factory meets the high standard quality requirements.

[0060] (2) In the first detection unit, the second driving component drives the push block to push the shaft workpieces that fail the visual inspection from the first conveyor belt and receive them by the first collecting component. This design effectively prevents the unqualified workpieces from flowing into the subsequent detection process, avoids invalid detection and waste of resources, and significantly improves the efficiency and economy of the overall detection process.

[0061] (3) In the transport unit, the first pneumatic gripper and the second pneumatic gripper clamp the same workpiece in mutually perpendicular directions, thereby realizing flexible adaptation to complex inter-station transport tasks. Combined with the lifting and translation drive system, the accuracy and stability of transport are further improved, and the automation level and operating efficiency of the system are enhanced. Attached Figure Description

[0062] Figure 1 This is a 3D view of the proposed solution.

[0063] Figure 2 This is a 3D view of the first conveyor belt hidden in the feeding unit of this scheme.

[0064] Figure 3 This is a three-dimensional view of the first detection unit and the first conveyor belt in this scheme.

[0065] Figure 4 This is a three-dimensional view of the transport unit and the second detection unit in this scheme.

[0066] Figure 5 This is a 3D view of the transport unit and the third detection unit in this scheme.

[0067] Figure 6 This is a 3D view of the fourth detection unit in this scheme.

[0068] Figure 7 This is a 3D view of the sorting unit hiding the second conveyor belt in this solution.

[0069] Figure 8 yes Figure 7 A partial 3D diagram of the structure.

[0070] Figure 9 This is a 3D view of the second conveyor belt in this scheme.

[0071] In the diagram, 1. Feeding unit; 2. First detection unit; 3. Conveying unit; 4. Second detection unit; 5. Rotating seat; 6. Third detection unit; 7. Fourth detection unit; 8. Sorting unit; 9. Hopper; 10. Push plate; 11. First driving component; 12. First conveyor belt; 13. Guide slope; 14. First support seat; 15. First vision inspection component; 16. Push block; 17. First collecting component; 18. Second driving component; 19. First pneumatic gripper; 20. Second pneumatic gripper; 21. Third driving component; 22. Moving seat; 23. Fourth driving component; 24. Second support seat; 25. Fifth driving component; 26. Second vision inspection component; 27. Third support seat; 28. First support platform; 29. ​​First clamping shaft; 30. First detection component; 31. Sixth driving component; 32. Seventh driving component; 33. Eighth driving component; 34. Fourth support base; 35. Second support platform; 36. Second clamping shaft; 37. Second detection component; 38. Ninth driving component; 39. Tenth driving component; 40. Eleventh driving component; 41. Twelfth driving component; 42. Thirteenth driving component; 43. Second collecting component; 44. Third collecting component; 45. Material distribution component; 46. First part; 47. Second part; 48. V-shaped placement groove; 49. Fourteenth driving component; 50. Rotating frame; 51. Fifteenth driving component; 52. Sixteenth driving component; 53. Second conveyor belt. Detailed Implementation

[0072] 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.

[0073] 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.

[0074] like Figure 1 and Figure 8As shown, this solution provides an automatic inspection device for shaft-type workpieces, comprising: a feeding unit 1; a first inspection unit 2, located to the side of the shaft-type workpiece's movement path, used for visual inspection of the shaft-type workpiece; a conveying unit 3, disposed on the shaft-type workpiece's movement path, used for conveying the shaft-type workpiece that has undergone visual inspection; and a second inspection unit 4, disposed to the side of the first inspection unit 2, the second inspection unit 4 having a rotatably mounted rotating seat 5, the rotating seat 5 having a first working position and a second working position; when the rotating seat 5 is in the first working position, it is used to receive the workpiece conveyed by the conveying unit 3. For shaft-type workpieces, the second detection unit 4 is used to detect the length of the shaft-type workpieces on the rotating seat 5 in the first working position; when the rotating seat 5 is in the second working position, it is used to position the shaft-type workpieces on it in the gripping position of the conveying unit 3; the third detection unit 6, which is located to the side of the second detection unit 4, is used to perform eddy current flaw detection on the shaft-type workpieces; the fourth detection unit 7, which is located to the side of the third detection unit 6, is used to detect the eccentricity of the shaft-type workpieces; and the sorting unit 8, which is located to the side of the fourth detection unit 7, is used to classify and sort the shaft-type workpieces that have completed the detection.

[0075] During operation, the loading unit 1 loads the shaft workpiece. When the shaft workpiece moves to the location of the first detection unit 2, the first detection unit 30 performs visual inspection on the shaft workpiece to check whether its appearance meets the acceptance standards. After completing the visual inspection, the shaft workpiece continues to move to the location of the transport unit 3, which transports it to the second detection unit 4. At this time, the rotating seat 5 is in the first working position, receiving the shaft workpiece transported by the transport unit 3. The second detection unit 4 performs length dimension inspection on the shaft workpiece on the rotating seat 5. After the second detection unit 4 completes the inspection of the shaft workpiece, the rotating seat 5 moves the shaft workpiece from the first working position to the second working position, so that the shaft workpiece is located in the gripping position of the transport unit 3. The rotating seat 5 can flexibly switch between the first and second working positions, so that the inspected shaft workpiece is accurately positioned within the gripping range of the transport unit 3, providing a reliable foundation for subsequent handling. Subsequently, the transport unit 3 grips and rotates the shaft workpiece. The shaft-type workpiece on seat 5 continues to be transported forward; when the shaft-type workpiece is transported to the location of the third detection unit 6, the third detection unit 6 performs eddy current testing on the shaft-type workpiece to detect whether there are cracks in the internal structure of the workpiece; after the shaft-type workpiece completes the eddy current testing, the transport unit 3 continues to transport the shaft-type workpiece to the location of the fourth detection unit 7, the fourth detection unit 7 performs eccentricity testing on the shaft-type workpiece; the shaft-type workpiece that has completed the eccentricity testing is continued to be transported by the transport unit 3 to the location of the sorting unit 8, the sorting unit 8 classifies and sorts the workpieces that have completed the testing according to the test results; through the above steps, the automatic detection device in this solution realizes the fully automated operation of shaft-type workpieces from loading to final classification, which greatly improves the efficiency of the entire detection process; by combining multiple detection methods such as visual inspection, length dimension inspection, eddy current testing, and eccentricity testing, the quality status of shaft-type workpieces can be comprehensively and accurately evaluated, ensuring that every product leaving the factory meets high-standard quality requirements.

[0076] Preferably, the feeding unit 1 includes: a hopper 9; a pusher plate 10, which is movably inserted into the bottom of the hopper 9 and fits against the inner wall of one side of the hopper 9, the pusher plate 10 being used to push the shaft-type workpieces in the hopper 9 upward in an orderly manner; a first drive member 11, the end of the pusher plate 10 away from the hopper 9 being connected to the output end of the first drive member 11, the first drive member 11 being used to drive the pusher plate 10 to rise and fall; and a first conveyor belt 12, a guide slope 13 is inclinedly provided on one side of the hopper 9, the first conveyor belt 12 being located below the guide slope 13, and being used to receive the shaft-type workpieces sliding down from the guide slope 13 and to transport the shaft-type workpieces.

[0077] During operation, the first driving component 11 drives the pusher plate 10 to move vertically upward along the bottom of the hopper 9, pushing out the bottommost shaft-type workpieces one by one. The workpieces slide down the guide slope 13 under the action of gravity and fall onto the first conveyor belt 12, which continues to transport them forward. Through the cooperation of the pusher plate 10 and the first driving component 11, combined with the design of the guide slope 13 and the first conveyor belt 12, the shaft-type workpieces can be stably pushed out and transported one by one, avoiding jamming or stacking, and ensuring the continuity of the inspection process. In addition, the design of the pusher plate 10 fitting against the inner wall of the hopper 9 can effectively prevent the shaft-type workpieces from tilting or jamming during the pushing process, improving the reliability and consistency of the feeding process. The first driving component 11 can be a motor, hydraulic cylinder, or pneumatic cylinder.

[0078] Further preferably, the first detection unit 2 includes: a first support base 14, located on the side of the first conveyor belt 12; a first visual inspection component 15, disposed on the first support base 14 and located above the first conveyor belt 12, for visual inspection of shaft-type workpieces on the conveyor belt; a push block 16, located on one side of the first conveyor belt 12 and movably abutting against the shaft-type workpieces on the first conveyor belt 12, for pushing the visually defective shaft-type workpieces away from the first conveyor belt 12; a first collection component 17, disposed opposite to the push block 16 and located on the side of the first conveyor belt 12 away from the first support base 14, for receiving the defective shaft-type workpieces pushed away from the first conveyor belt 12; and a second drive component 18, disposed on the first support base 14 and electrically connected to the first visual inspection component 15, the push block 16 being connected to the output end of the second drive component 18, the second drive component 18 for driving the push block 16 to move.

[0079] When the first conveyor belt 12 transports the shaft-type workpiece to the location of the first detection unit 2, the first vision inspection component 15 performs visual inspection on its appearance to determine whether the appearance of the shaft-type workpiece meets the preset standard. If the inspection fails, the second drive component 18 drives the push block 16 to move, pushing the unqualified workpiece off the conveyor belt and into the first collection component 17. If the inspection passes, the push block 16 remains stationary, and the first conveyor belt 12 continues to transport the qualified workpiece forward. Through the linkage control of vision inspection and the push mechanism, unqualified workpieces can be automatically rejected without stopping the production line, significantly improving inspection efficiency and automation level. The first vision inspection component 15 performs visual inspection on the shaft-type workpiece, replacing manual visual inspection, avoiding human error, and ensuring stable and reliable inspection results. It is especially suitable for large-scale continuous production scenarios. The second drive component 18 can be a motor, hydraulic cylinder, or pneumatic cylinder. In the field of industrial automation, vision inspection components usually refer to hardware and software systems used to perform visual inspection tasks. They can simulate the function of human vision, and check whether there are defects in the appearance of the product, whether the size meets the specifications, and whether the position is correct by capturing and analyzing images.

[0080] More preferably, the conveying unit 3 includes: a first pneumatic gripper 19, which is movably disposed above the first conveyor belt 12 and the rotating seat 5, for conveying visually inspected and qualified shaft workpieces on the first conveyor belt 12 to the rotating seat 5; a second pneumatic gripper 20, which is arranged side by side with the first pneumatic gripper 19, and when the shaft workpiece is gripped by the first pneumatic gripper 19 and the second pneumatic gripper 20 respectively, their axial directions are perpendicular to each other, and the second pneumatic gripper 20 is used to grip and convey the shaft workpieces on the rotating seat 5; a third drive member 21, whose output end is provided with a movable seat 22, the first pneumatic gripper 19 and the second pneumatic gripper 20 are both connected to the movable seat 22, and the third drive member 21 drives the first pneumatic gripper 19 and the second pneumatic gripper 20 to rise and fall in the vertical direction through the movable seat 22; and a fourth drive member 23, the third drive member 21 is connected to the fourth drive member 23, and the fourth drive member 23 is used to drive the third drive member 21 to move in the horizontal direction.

[0081] During operation, the first conveyor belt 12 transports visually inspected and qualified shaft-type workpieces forward until they reach the location of the transport unit 3. At this point, the shaft-type workpiece is within the gripping range of the first pneumatic gripper 19. Subsequently, the third drive unit 21 is activated, driving the first pneumatic gripper 19 to descend to the gripping position via the moving seat 22. The first pneumatic gripper 19 then grips the shaft-type workpiece on the first conveyor belt 12. The third drive unit 21 then reverses direction, causing the first pneumatic gripper 19 and the shaft-type workpiece it grips to rise. Next, the fourth drive unit 23 is activated, driving the third drive unit 21 to rise. The drive unit 21 moves horizontally, thereby driving the movable seat 22 and the first pneumatic gripper 19 on the third drive unit 21 to move horizontally until the first pneumatic gripper 19 moves directly above the rotating seat 5 in the first working position; the fourth drive unit 23 stops driving, and the third drive unit 21 starts again, driving the movable seat 22 and the first pneumatic gripper 19 to descend until the shaft workpiece on the first pneumatic gripper 19 is placed on the rotating seat 5 in the first working position, the first pneumatic gripper 19 releases the shaft workpiece, and the rotating seat 5 provides support for the shaft workpiece.

[0082] After the second detection unit 4 completes the length dimension detection of the shaft workpiece on the rotating seat 5, the rotating seat 5 changes from the first working position to the second working position. At this time, the shaft workpiece on the rotating seat 5 is within the gripping range of the second pneumatic gripper 20. The third drive unit 21 is activated, and the second pneumatic gripper 20 is lowered to the gripping position through the moving seat 22. The second pneumatic gripper 20 grips the shaft workpiece on the rotating seat 5. The third drive unit 21 drives in the reverse direction, causing the second pneumatic gripper 20 and the shaft workpiece it grips to rise. Then, the fourth drive unit 23 drives the third drive unit 21 to move horizontally, thereby causing the moving seat 22 and the second pneumatic gripper 20 to move horizontally, and the shaft workpiece that has completed the length dimension detection continues to be transported forward.

[0083] The first pneumatic gripper 19 and the second pneumatic gripper 20 are arranged side by side on the movable seat 22. The movable seat 22 drives the first pneumatic gripper 19 and the second pneumatic gripper 20 to move as a whole in the vertical and horizontal directions. During operation, the first pneumatic gripper 19 is used to grip the shaft-type workpieces that have passed visual inspection on the first conveyor belt 12 and transport them to the rotating seat 5; while the second pneumatic gripper 20 is used to grip the shaft-type workpieces that have completed length dimension inspection in subsequent processes and continue to transport them forward; the third drive member 21 and the fourth drive member 23 are preferably linear guides, which are used to drive the movable seat 22 and the first pneumatic gripper 20, respectively. The movable gripper 19 and the second pneumatic gripper 20 move in the vertical and horizontal directions. Since the axes of shaft-type workpieces are perpendicular to each other when they are gripped by the first pneumatic gripper 19 and the second pneumatic gripper 20, this design allows the first pneumatic gripper 19 and the second pneumatic gripper 20 on the moving seat 22 to complete the gripping and releasing of workpieces in different axes, thereby better adapting to the handling needs between complex workstations. The first pneumatic gripper 19 and the second pneumatic gripper 20, together with the lifting and translation drive system, not only improve the handling accuracy and stability, but also enhance the automation level and operating efficiency of the system.

[0084] More preferably, the second detection unit 4 includes: a second support base 24 located on the side of the first conveyor belt 12; a fifth driving member 25 disposed on the second support base 24, a rotating seat 5 connected to the output end of the fifth driving member 25, the fifth driving member 25 being used to drive the rotating seat 5 to switch between a first working position and a second working position; and a second visual inspection member 26 disposed opposite to the rotating seat 5, used to perform visual inspection on shaft-type workpieces to determine whether their length dimensions are qualified.

[0085] The first pneumatic gripper 19 transports the shaft-type workpiece to the rotating seat 5 in the first working position. Then, the second vision inspection component 26 performs visual imaging on both ends of the workpiece and analyzes whether its length dimension is qualified in conjunction with the image processing system. After the inspection is completed, the fifth drive component 25 is activated, driving the rotating seat 5 to rotate and switch it from the first working position to the second working position. At this time, the workpiece whose length dimension has been inspected is located directly below the second pneumatic gripper 20, which facilitates subsequent handling operations. The rotating seat 5 can switch between the first working position and the second working position, which not only ensures stable support and inspection positioning of the workpiece, but also provides convenience for subsequent handling, which helps to improve the space utilization and operating efficiency of the equipment.

[0086] More preferably, the third detection unit 6 includes: a third support base 27 having a first support platform 28 located on the moving path of the shaft-like workpiece, the first support platform 28 being used to receive the shaft-like workpiece transported by the second pneumatic gripper 20; the third support base 27 is also provided with a symmetrically arranged first rotating shaft and a first abutting shaft 29, the first rotating shaft and the first abutting shaft 29 respectively abutting against both ends of the shaft-like workpiece, the first rotating shaft being used to drive the shaft-like workpiece to rotate by friction, and the first abutting shaft 29 being used to provide support for the shaft-like workpiece; and a first detection element 30 located on the first support platform. The side of 28 is used for eddy current flaw detection of shaft-type workpieces; the sixth drive member 31, the first rotating shaft is connected to the output end of the sixth drive member 31, the sixth drive member 31 is used to drive the first rotating shaft to rotate; the third support 27 is also provided with a seventh drive member 32 and an eighth drive member 33 arranged opposite to each other, the sixth drive member 31 is connected to the output end of the seventh drive member 32, the first abutting shaft 29 is connected to the output end of the eighth drive member 33, the seventh drive member 32 is used to drive the sixth drive member 31 to move, and the eighth drive member 33 is used to drive the first abutting shaft 29 to move closer to or away from the shaft-type workpiece.

[0087] After the shaft-like workpiece is transported by the conveying unit 3 to the first support platform 28 on the third support seat 27, the seventh drive member 32 and the eighth drive member 33 start synchronously. The seventh drive member 32 drives the sixth drive member 31 and its first rotating shaft to approach one end of the shaft-like workpiece, and the eighth drive member 33 drives the first abutting shaft 29 to approach the other side of the shaft-like workpiece. When the first rotating shaft and the first abutting shaft 29 are in close contact with both ends of the shaft-like workpiece, the seventh drive member 32 and the eighth drive member 33 stop driving. Subsequently, the sixth drive member 31 starts, drives the first rotating shaft to rotate, and then drives the shaft-like workpiece to rotate synchronously through friction, while the first abutting shaft 29 provides stable support for the shaft-like workpiece. At the same time, the first detection member 30 performs eddy current flaw detection on the rotating shaft-like workpiece to determine whether the shaft-like workpiece has cracks, pores or other internal defects. The sixth drive member 31 is preferably a rotary motor, and the seventh drive member 32 and the eighth drive member 33 can be a motor, a hydraulic cylinder or a pneumatic cylinder.

[0088] The preferred probe for the first inspection piece 30 is used in eddy current testing, a non-destructive testing method widely applied to the detection of surface and near-surface defects in metallic materials and components. It operates based on the principle of electromagnetic induction, detecting defects or changes in other physical properties of a material by generating eddy currents within it. In eddy current testing, the probe is a key component for generating eddy currents and detecting internal defects in the material; it typically contains one or more coils that can be used to generate an alternating magnetic field (excitation coil) or to detect a secondary magnetic field caused by changes in eddy currents within the material (detection coil). Depending on the application requirements, the probe can be designed in various forms, such as absolute, differential, multi-frequency, or array types, making it widely applicable to the inspection of different types of metallic materials and complex-shaped workpieces.

[0089] Further preferably, the fourth detection unit 7 includes: a fourth support base 34, located to the side of the third support base 27, and having a second support platform 35, the second support platform 35 being used to receive the shaft-like workpiece after eddy current flaw detection; the fourth support base 34 is also provided with a symmetrically arranged second rotating shaft and abutting shaft 36, the second rotating shaft and the second abutting shaft 36 respectively movably abutting against both ends of the shaft-like workpiece, the second rotating shaft being used to drive the shaft-like workpiece to rotate, and the second abutting shaft 36 being used to provide support for the shaft-like workpiece; a second detection element 37, located to the side of the second support platform 35, being used to contact the surface of the shaft-like workpiece to perform eccentricity detection; and a ninth driving element 38, the second rotating shaft being connected to the output end of the ninth driving element 38, the ninth driving element 38 being used to drive... The second rotating shaft rotates; the fourth support 34 is also provided with a tenth driving member 39 and an eleventh driving member 40 arranged opposite to each other, the ninth driving member 38 is connected to the output end of the tenth driving member 39, and the second abutting shaft 36 is connected to the output end of the eleventh driving member 40. The tenth driving member 39 is used to drive the ninth driving member 38 to move, and the eleventh driving member 40 is used to drive the second abutting shaft 36 to move closer to or away from the shaft-like workpiece; the twelfth driving member 41, the second detection member 37 is arranged on the twelfth driving member 41, and the twelfth driving member 41 is used to drive the second detection member 37 to move closer to or away from the shaft-like workpiece; the thirteenth driving member 42, the twelfth driving member 41 is arranged on the thirteenth driving member 42, and the thirteenth driving member 42 is used to drive the twelfth driving member 41 to move.

[0090] After the transport unit 3 transports the shaft-like workpiece that has completed eddy current flaw detection to the second support platform 35, the tenth drive component 39 and the eleventh drive component 40 start synchronously. The tenth drive component 39 drives the ninth drive component 38 and its second rotating shaft to approach one end of the shaft-like workpiece, while the eleventh drive component 40 drives the second abutting shaft 36 to approach the other end of the shaft-like workpiece. Once the second rotating shaft and the second abutting shaft 36 are in close contact with both ends of the shaft-like workpiece, the tenth drive component 39 and the eleventh drive component 40 stop driving. Subsequently, the twelfth drive component 41 starts, driving its second detection component 37 to contact the shaft-like workpiece. At the same time, the ninth drive component 38 drives the second rotating shaft to rotate, thereby driving the shaft-like workpiece to rotate synchronously through friction. The second abutting shaft 36 provides stable support for the shaft-like workpiece, and the second detection component 37 detects the eccentricity of the rotating shaft-like workpiece. After the shaft-like workpiece is driven by the second spindle to complete... After one rotation, the twelfth drive component 41 reverses its direction, causing the second detection component 37 on it to separate from the shaft-like workpiece. Subsequently, the thirteenth drive component 42 starts, driving the twelfth drive component 41 to move horizontally, causing the second detection component 37 to move horizontally relative to the shaft-like workpiece until the second detection component 37 aligns with the next preset detection point on the shaft-like workpiece in the horizontal direction. The thirteenth drive component 42 stops driving, and the twelfth drive component 41 starts again, causing the second detection component 37 to contact the detection point on the shaft-like workpiece. The above steps are repeated until all preset detection points on the shaft-like workpiece have completed the eccentricity detection, and the entire eccentricity detection process ends. Among them, the second detection component 37 is preferably an electronic ruler, the ninth drive component 38 is preferably a rotary motor, the tenth drive component 39, the eleventh drive component 40 and the twelfth drive component 41 can be motors, hydraulic cylinders or pneumatic cylinders, and the thirteenth drive component 42 is preferably a linear guide rail.

[0091] More preferably, the sorting unit 8 includes: a second collecting member 43 and a third collecting member 44 disposed opposite to each other, both the second collecting member 43 and the third collecting member 44 being located to the side of the fourth support base 34; the second collecting member 43 being used to receive shaft-type workpieces with unqualified length dimensions, and the third collecting member 44 being used to receive shaft-type workpieces with unqualified internal structure and eccentricity; and a material distribution member 45, which is rotatably disposed between the second collecting member 43 and the third collecting member 44, and has a first part 46 and a second part 47 disposed with lifting and lowering, forming a V-shape between the first part 46 and the second part 47. The material distribution trough 48 and the material distribution component 45 have a third working position and a fourth working position. When the material distribution component 45 is in the third working position, it is used to receive shaft-type workpieces and provide support for them. When the material distribution component 45 is in the fourth working position and the first part 46 is lowered, it is used to allow shaft-type workpieces to fall into the second collecting component 43. When the material distribution component 45 is in the fourth working position and the second part 47 is lowered, it is used to allow shaft-type workpieces to fall into the third collecting component 44. The functions of the second collecting component 43 and the third collecting component 44 can be interchanged according to actual needs to flexibly adapt to different classification requirements.

[0092] More preferably, the sorting assembly further includes: a fourteenth drive member 49, the output end of which is provided with a rotating frame 50, and a sorting member 45 is disposed on the rotating frame 50. The fourteenth drive member 49 can rotate the sorting member 45 from the third working position to the fourth working position through the rotating frame 50 according to whether the shaft workpiece on the V-shaped placement groove 48 is a defective product; a fifteenth drive member 51, which is disposed on the rotating frame 50, with a first part 46 connected to the output end of the fifteenth drive member 51, and the fifteenth drive member 51 is used to drive the first part 46 to rise and fall; and a sixteenth drive member 52, which is disposed on the rotating frame 50 and arranged in parallel with the sixteenth drive member 52, with a second part 47 connected to the output end of the sixteenth drive member 52, and the sixteenth drive member 52 is used to drive the second part 47 to rise and fall.

[0093] More preferably, the sorting assembly further includes: a second conveyor belt 53 located to the side of the second collector 43 and the third collector 44; a second pneumatic gripper 20 can grab and transport the shaft workpiece on the sorting unit 45 to the second conveyor belt 53 if the workpiece is qualified when the sorting unit 45 is in the third working position; the second conveyor belt 53 is used to transport the qualified shaft workpiece to the designated position.

[0094] After completing all inspection steps, the shaft workpieces are transported by the conveying unit 3 to the sorting component 45 in the third working position. At this time, the V-shaped placement groove 48 provides support for the shaft workpieces. If the shaft workpiece in the V-shaped placement groove 48 is a defective product, a signal is sent to the fourteenth drive unit 49 through the detection module. The fourteenth drive unit 49 is activated, and the rotating frame 50 drives the sorting component 45 to rotate from the third working position to the fourth working position. At this time, the first part 46 is located at the position corresponding to the second collection component 43, and the second part 47 is located at the position corresponding to the third collection component 44. According to the preset sorting conditions, if it is necessary to send the shaft workpiece into the second collection component 43, the fifteenth drive unit 51 drives the first part 46 to descend, so that the V-shaped placement groove 48 provides support for the shaft workpieces. The V-shaped placement groove 48 partially opens, allowing shaft-type workpieces to fall into the second collection member 43 under gravity. Conversely, if it is necessary to send shaft-type workpieces into the third collection member 44, the sixteenth drive member 52 drives the second part 47 to descend, similarly causing the V-shaped placement groove 48 to partially open, allowing the shaft-type workpieces to fall into the third collection member 44. When the first part 46 or the second part 47 descends, a relative displacement occurs between them, causing the V-shaped placement groove 48 to partially open, allowing the shaft-type workpieces to fall smoothly into the corresponding second collection member 43 or third collection member 44. Depending on the type of non-conforming item, when the material distribution member 45 is in the fourth working position, the first part 46 or the second part 47 can be selectively descended to achieve automatic classification of non-conforming shaft-type workpieces.

[0095] If the shaft workpiece on the material distribution unit 45 in the third working position is a qualified product, the material distribution unit 45 remains stationary, the conveying unit 3 grabs the workpiece and transports it to the second conveyor belt 53; the second conveyor belt 53 receives the shaft workpiece and transports it to the designated position.

[0096] 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.

[0097] 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.

[0098] 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 inspection device for shaft-type workpieces, characterized in that, include: Feeding unit; The first detection unit is located on the side of the movement path of the shaft workpiece and is used to perform visual inspection on the shaft workpiece. A conveying unit is disposed on the moving path of the shaft workpiece and is used to convey the shaft workpiece after visual inspection. The second detection unit is disposed to the side of the first detection unit. The second detection unit has a rotating seat that is rotatably disposed, and the rotating seat has a first working position and a second working position. When the rotating seat is in the first working position, it is used to receive the shaft-like workpiece transported by the conveying unit, and the second detection unit is used to detect the length of the shaft-like workpiece on the rotating seat in the first working position; when the rotating seat is in the second working position, it is used to position the shaft-like workpiece on it in the gripping position of the conveying unit. The third detection unit is located to the side of the second detection unit and is used to perform eddy current flaw detection on the shaft workpiece. The fourth detection unit is located to the side of the third detection unit and is used to detect the eccentricity of the shaft workpiece. The sorting unit is located to the side of the fourth detection unit and is used to classify and sort the shaft-type workpieces that have completed the detection.

2. The automatic detection device for shaft-type workpieces as described in claim 1, characterized in that, The feeding unit includes: silos; A push plate is movably inserted into the bottom of the hopper and fits against one inner wall of the hopper. The push plate is used to push the shaft-type workpiece out of the hopper. The first driving component has a push plate whose end away from the hopper is connected to the output end of the first driving component, and the first driving component is used to drive the push plate to rise and fall. The first conveyor belt has a guide slope on one side of the hopper, and is located below the guide slope. It is used to receive and transport the shaft-type workpiece that slides down from the guide slope.

3. The automatic detection device for shaft-type workpieces as described in claim 2, characterized in that, The first detection unit includes: The first support is located on the side of the first conveyor belt; A first visual inspection component is disposed on the first support and located above the first conveyor belt, for visual inspection of the shaft-type workpieces on the conveyor belt. A push block is located on one side of the first conveyor belt and moves against the shaft-type workpiece on the first conveyor belt. The push block is used to push the shaft-type workpiece that does not meet the visual inspection requirements away from the first conveyor belt. A first collecting member is disposed opposite to the push block and located on the side of the first conveyor belt away from the first support. The first collecting member is used to receive the shaft-type workpiece that has been pushed away from the first conveyor belt. The second driving member is disposed on the first support base and electrically connected to the first vision detection member. The push block is connected to the output end of the second driving member, and the second driving member is used to drive the push block to move.

4. The automatic inspection device for shaft-type workpieces as described in claim 2, characterized in that, The transport unit includes: The first pneumatic gripper is movably disposed above the first conveyor belt and the rotating seat, and is used to transport the shaft-type workpiece that has passed visual inspection on the first conveyor belt to the rotating seat; The second pneumatic gripper is arranged in parallel with the first pneumatic gripper. When the shaft workpiece is gripped by the first pneumatic gripper and the second pneumatic gripper respectively, the axial directions of the shaft workpiece are perpendicular to each other. The second pneumatic gripper is used to grip the shaft workpiece on the rotating seat and transport it. The third driving unit has a movable base at its output end. The first pneumatic gripper and the second pneumatic gripper are both connected to the movable base. The third driving unit drives the first pneumatic gripper and the second pneumatic gripper to move up and down in the vertical direction through the movable base. A fourth driving member, wherein the third driving member is connected to the fourth driving member, and the fourth driving member is used to drive the third driving member to move in the horizontal direction.

5. The automatic inspection device for shaft-type workpieces as described in claim 3, characterized in that, The second detection unit includes: The second support is located to the side of the first conveyor belt; The fifth driving member is disposed on the second support base, and the rotating base is connected to the output end of the fifth driving member. The fifth driving member is used to drive the rotating base to switch between the first working position and the second working position. The second visual inspection component is disposed opposite to the rotating seat and is used to perform visual inspection on the shaft-type workpiece.

6. The automatic inspection device for shaft-type workpieces as described in claim 4, characterized in that, The third detection unit includes: The third support has a first support platform located on the moving path of the shaft workpiece, the first support platform being used to receive the shaft workpiece transported by the second pneumatic gripper; The third support base is also provided with a first rotating shaft and a first abutting shaft arranged opposite to each other. The first rotating shaft and the first abutting shaft are respectively movably abutting against both ends of the shaft workpiece. The first rotating shaft is used to drive the shaft workpiece to rotate, and the first abutting shaft is used to provide support for the shaft workpiece. The first test piece, located to the side of the first support platform, is used to perform eddy current flaw detection on the shaft-type workpiece. The sixth driving component is connected to the output end of the first rotating shaft, and the sixth driving component is used to drive the first rotating shaft to rotate. The third support base is also provided with a seventh driving member and an eighth driving member arranged opposite to each other. The sixth driving member is connected to the seventh driving member, and the first abutting shaft is connected to the output end of the eighth driving member. The seventh driving member is used to drive the sixth driving member to move, and the eighth driving member is used to drive the first abutting shaft to move closer to or away from the shaft-type workpiece.

7. The automatic inspection device for shaft-type workpieces as described in claim 6, characterized in that, The fourth detection unit includes: A fourth support base, located to the side of the third support base, has a second support platform for receiving the shaft-type workpiece after eddy current testing. The fourth support base is also provided with a symmetrically arranged second rotating shaft and a second abutting shaft. The second rotating shaft and the second abutting shaft are respectively movably abutting against both ends of the shaft workpiece. The second rotating shaft is used to drive the shaft workpiece to rotate, and the second abutting shaft is used to provide support for the shaft workpiece. The second detection element is located to the side of the second support platform. The second detection element is used to contact the surface of the shaft workpiece to detect eccentricity. The ninth driving member, wherein the second rotating shaft is connected to the output end of the ninth driving member, and the ninth driving member is used to drive the second rotating shaft to rotate; The fourth support base is also provided with a tenth driving member and an eleventh driving member arranged opposite to each other. The ninth driving member is connected to the output end of the tenth driving member, and the second abutting shaft is connected to the output end of the eleventh driving member. The tenth driving member is used to drive the ninth driving member to move, and the eleventh driving member is used to drive the second abutting shaft to move closer to or away from the shaft-type workpiece. The twelfth driving member, wherein the second detection member is disposed on the twelfth driving member, the twelfth driving member being used to drive the second detection member closer to or away from the shaft-type workpiece; The thirteenth driving component is disposed on the twelfth driving component and is used to drive the twelfth driving component to move.

8. The automatic inspection device for shaft-type workpieces as described in claim 7, characterized in that, The sorting unit includes: The second and third collecting components are arranged opposite to each other, and both the second and third collecting components are located to the side of the fourth support. The second collecting component is used to receive the shaft-type workpieces with unqualified length dimensions, and the third collecting component is used to receive the shaft-type workpieces with unqualified internal structure and eccentricity. The material distribution component is rotatably disposed between the second collecting component and the third collecting component, and has a first part and a second part that are raised and lowered, with a V-shaped placement groove formed between the first part and the second part; The material distribution component has a third working position and a fourth working position. When the material distribution component is in the third working position, it is used to receive the shaft-type workpiece and provide support for it. When the material distribution component is in the fourth working position and the first part descends, it is used to allow the shaft-type workpiece to fall into the second collecting component; when the material distribution component is in the fourth working position and the second part descends, it is used to allow the shaft-type workpiece to fall into the third collecting component.

9. The automatic inspection device for shaft-type workpieces as described in claim 8, characterized in that, The sorting unit also includes: The fourteenth driving component has a rotating frame at its output end. The material distribution component is mounted on the rotating frame. The fourteenth driving component can switch the material distribution component from the third working position to the fourth working position through the rotating frame if the shaft workpiece on the V-shaped placement groove is a defective product. The fifteenth driving member is disposed on the rotating frame, and the first part is connected to the output end of the fifteenth driving member. The fifteenth driving member is used to drive the first part to move up and down. The sixteenth drive unit is disposed on the rotating frame and arranged in parallel with the sixteenth drive unit. The second part is connected to the output end of the sixteenth drive unit, and the sixteenth drive unit is used to drive the second part to rise and fall.

10. The automatic inspection device for shaft-type workpieces as described in claim 9, characterized in that, The sorting unit further includes a second conveyor belt located to the side of the second and third collection components. The second pneumatic gripper can pick up and transport the shaft-type workpiece on the sorting component in the third working position as a qualified product to the second conveyor belt. The second conveyor belt is used to transport the qualified shaft-type workpiece to a designated position.

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