Automatic detection mechanism for shaft workpieces

Abstract

The utility model relates to the technical field of workpiece production, and provides an automatic detection mechanism for shaft workpieces, which comprises a workbench provided with a feeding unit, a conveying unit, a detection unit and a sorting unit; wherein the feeding unit is used for feeding workpieces, the conveying unit is used for conveying the workpieces, the detection unit is provided with a driving wheel and a supporting wheel which are oppositely arranged, the supporting wheel is used for supporting the workpieces, the driving wheel is driven by the detection unit to drive the workpieces to rotate through friction force, and therefore full-circle continuous measurement of the detection unit on the outer diameters of the workpieces is achieved; the sorting unit is used for sorting the detected workpieces; through the structural design, the automatic detection mechanism in the scheme realizes automatic operation of the whole process from workpiece feeding, outer diameter detection to sorting, so that the detection efficiency and precision are remarkably improved, the consistency of product quality is effectively ensured, and the labor cost is reduced.

Description

Technical Field

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

[0002] Shaft-type workpieces are key components in mechanical systems used for support, power transmission, or motion functions. Their main characteristic is that they have one or more axes of rotation. Typically, these workpieces are designed as cylindrical or other rotating structures and are widely used in various mechanical equipment such as automobiles, aerospace, ships, machine tools, and motors, undertaking important functions such as connection, transmission, and positioning.

[0003] In the manufacturing process of shaft-type workpieces, multi-dimensional and high-precision quality inspections are essential to ensure their performance and reliability in practical applications before shipment. However, many manufacturers still rely on manual inspection methods. While manual inspection can meet basic quality control needs to some extent, its procedures are cumbersome, inefficient, and ill-suited to the automation and standardization requirements of large-scale production. Especially under high-volume production conditions, companies often need to assign multiple quality inspectors to work in shifts, which not only increases labor costs but also hinders the improvement of overall inspection efficiency. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is: to propose an automatic detection mechanism for shaft workpieces. By setting up a feeding unit, a conveying unit, a detection unit and a sorting unit on the worktable, the mechanism realizes the fully automated operation from workpiece feeding and outer diameter detection to sorting. This not only significantly improves detection efficiency and accuracy, but also effectively ensures the consistency of product quality and reduces labor costs.

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

[0006] Workbench;

[0007] The feeding unit is mounted on the worktable;

[0008] A conveying unit, which is installed on the worktable, is used to convey workpieces;

[0009] The detection unit is located to the side of the feeding unit and has a drive wheel and a support wheel arranged opposite to each other. The drive wheel is located above the support wheel. One end of the workpiece is placed between the drive wheel and the support wheel. The drive wheel is used to drive the workpiece to rotate, and the support wheel is used to provide support for the workpiece. The detection unit is used to detect the outer diameter of the workpiece.

[0010] The sorting unit, located to the side of the detection unit, is used to classify and sort the workpieces that have completed the detection.

[0011] In the aforementioned automatic inspection mechanism for shaft-type workpieces, the inspection unit further includes:

[0012] The worktable is provided with support seats on both sides, and support wheels are provided on both sides of the support seats. The drive wheel is provided on one of the support seats.

[0013] A first driving member has a pulley assembly at its output end. The driving wheel is connected to the pulley assembly, and the first driving member drives the driving wheel to rotate through the pulley assembly.

[0014] The second driving member is connected to the support base on one side. The output end of the second driving member is provided with a support block. The first driving member and the driving wheel are both connected to the support block. The second driving member drives the first driving member and the driving wheel to move in the vertical direction through the support block.

[0015] In the aforementioned automatic inspection mechanism for shaft-type workpieces, the pulley assembly includes:

[0016] The drive wheel is located at the output end of the first drive component;

[0017] The driven wheel is supported by a connecting shaft, one end of which is connected to the driven wheel and the other end is connected to the drive wheel.

[0018] A belt is fitted between the driving pulley and the driven pulley.

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

[0020] A support platform, which is mounted on the support base on the other side;

[0021] A first contact block and a second contact block are provided on the support platform. The first contact block is fixed on the support platform, and the second contact block is movably disposed on the support platform. The first contact block and the second contact block respectively move and abut against the two sides of the workpiece in the radial direction.

[0022] A third driving component is disposed on the support platform. The output end of the third driving component is provided with a driving rod. The first contact block has a first connecting part, and the second contact block has a second connecting part. One end of the driving rod passes through the first connecting part and is connected to the second connecting part. The third driving component drives the second contact block to move through the driving rod.

[0023] The measuring element has a push rod at its sensing end, one end of which passes through the first connecting part and is connected to the second connecting part, for detecting the displacement of the second contact block.

[0024] In the aforementioned automatic inspection mechanism for shaft-type workpieces, the feeding unit includes:

[0025] silos;

[0026] A push plate, one end of which is movably inserted into the hopper and movably abuts against the inner wall of one side of the hopper, is used to push the workpiece out of the hopper;

[0027] The fourth driving component has one end of the push plate away from the hopper connected to the output end of the fourth driving component, which is used to drive the push plate to move.

[0028] In the aforementioned automatic inspection mechanism for shaft-type workpieces, the feeding unit further includes:

[0029] The first conveyor belt has a guide slope on one side of the hopper. The first conveyor belt is located below the guide slope and is used to receive the workpiece that slides down the guide slope and transport it.

[0030] A detection component, which is disposed on the first conveyor belt, is used to detect whether the workpiece has moved to a preset position.

[0031] In the aforementioned automatic inspection mechanism for shaft-type workpieces, the conveying unit includes:

[0032] A pneumatic gripper is movably positioned above the first conveyor belt for gripping and transporting the workpiece on the first conveyor belt.

[0033] A first movable seat is provided with a plurality of pneumatic grippers, and the first movable seat is used to drive the pneumatic grippers to move.

[0034] The fifth driving member, the first movable seat is connected to the fifth driving member, and the fifth driving member is used to drive the first movable seat to move in the vertical direction;

[0035] A sixth driving component is provided, wherein the fifth driving component is connected to the sixth driving component, and the sixth driving component drives the first movable seat to move in the horizontal direction through the fifth driving component.

[0036] In the aforementioned automatic inspection mechanism for shaft-type workpieces, the sorting unit includes:

[0037] The second movable seat is movably positioned below the movement path of the workpiece after inspection, for receiving the workpiece and classifying it.

[0038] A baffle, which is fixedly mounted on the second movable seat;

[0039] A rotating shaft is rotatably mounted on the second movable seat. A rotating block is connected to the rotating shaft. The rotating block and the baffle form a placement groove. The rotating block and the baffle have a closed state and a separated state. The closed state is used to form the placement groove, and the separated state is used to release the workpiece.

[0040] In the aforementioned automatic inspection mechanism for shaft-type workpieces, the sorting unit further includes:

[0041] The seventh driving component, wherein the rotating shaft is connected to the output end of the seventh driving component, and the seventh driving component is used to drive the rotating shaft to rotate;

[0042] An eighth driving member is provided, and the second movable seat is connected to the eighth driving member, which is used to drive the second movable seat to move.

[0043] In the aforementioned automatic inspection mechanism for shaft-type workpieces, the sorting unit further includes:

[0044] The second conveyor belt, located below the second movable seat, is used to receive the inspected and qualified workpieces and transport them to a designated location;

[0045] A collection element, arranged alongside the second conveyor belt, is used to receive the workpieces that fail the inspection.

[0046] Compared with the prior art, the present invention has the following beneficial effects:

[0047] (1) By integrating the feeding unit, conveying unit, detection unit and sorting unit on the workbench, the entire process of workpiece loading, outer diameter detection and classification processing is fully automated. This design not only significantly improves detection efficiency, but also ensures improved measurement accuracy by precisely controlling the operation of each link. In addition, due to the high degree of automation of the whole process, it can effectively ensure the dimensional consistency and quality stability of the products leaving the factory, and reduce labor costs.

[0048] (2) The detection unit adopts a structure of driving wheels and support wheels arranged vertically to stabilize the workpiece and drive it to rotate; at the same time, by connecting the first driving component and the pulley assembly, the precise power transmission of the driving wheel is realized; in addition, the detection unit also includes a first contact block and a second contact block driven by a third driving component, as well as a measuring component linked with it. By detecting the displacement change of the second contact block, the changing trend of the outer diameter of the workpiece is reflected in real time, thereby realizing continuous measurement of the entire circumference.

[0049] (3) The sorting unit is equipped with an openable placement slot structure, which consists of a fixed baffle and a rotatable rotating block. When the workpiece is judged to be qualified, the rotating block opens and the workpiece falls into the conveyor belt below for conveying. When the workpiece is judged to be unqualified, the moving seat moves to the top of the collection piece and then opens the rotating block, so that the unqualified product falls into the designated collection area. This sorting method has the advantages of rapid response, reliable operation and accurate classification. Attached Figure Description

[0050] Figure 1 This is a 3D view of the proposed solution.

[0051] Figure 2 This is a 3D view of the detection unit in this scheme.

[0052] Figure 3 yes Figure 2 A 3D view from another direction.

[0053] Figure 4 This is a 3D view of the material feeding unit in this solution.

[0054] Figure 5 yes Figure 1 Three-dimensional view of the middle section structure.

[0055] Figure 6 This solution is a three-dimensional arrangement in which the sorting unit conceals the second transmission belt and the collection components.

[0056] In the diagram, 1. Workbench; 2. Feeding unit; 3. Conveying unit; 4. Detection unit; 5. Drive wheel; 6. Support wheel; 7. Sorting unit; 8. Support base; 9. First drive component; 10. Second drive component; 11. Support block; 12. Drive wheel; 13. Driven wheel; 14. Connecting shaft; 15. Belt; 16. Support platform; 17. First contact block; 18. Second contact block; 19. Third drive component; 20. Drive rod; 21. First connecting part; 22. Second connecting part 23. Measuring component; 24. Push rod; 25. Hopper; 26. Push plate; 27. Fourth drive component; 28. First conveyor belt; 29. ​​Guide slope; 30. Detection component; 31. Pneumatic gripper; 32. First moving seat; 33. Fifth drive component; 34. Sixth drive component; 35. Second moving seat; 36. Baffle; 37. Rotating shaft; 38. Rotating block; 39. Placement slot; 40. Seventh drive component; 41. Eighth drive component; 42. Second conveyor belt; 43. Collector. Detailed Implementation

[0057] 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.

[0058] 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.

[0059] like Figures 1 to 6 As shown, this solution provides an automatic inspection mechanism for shaft-type workpieces, comprising: a worktable 1; a loading unit 2 disposed on the worktable 1; a conveying unit 3 disposed on the worktable 1 for conveying the workpiece; an inspection unit 4 disposed to the side of the loading unit 2, having a drive wheel 5 and a support wheel 6 disposed opposite to each other, the drive wheel 5 being located above the support wheel 6, one end of the workpiece being placed between the drive wheel 5 and the support wheel 6, the drive wheel 5 being used to drive the workpiece to rotate, the support wheel 6 being used to provide support for the workpiece, and the inspection unit 4 being used to inspect the outer diameter of the workpiece; and a sorting unit 7 disposed to the side of the inspection unit 4 for classifying and sorting the inspected workpieces.

[0060] During operation, the conveying unit 3 transports the workpiece from the loading unit 2 to the location of the detection unit 4. At this time, one end of the workpiece is placed between the drive wheel 5 and the support wheel 6. The detection unit 4 detects the outer diameter of the workpiece. During the detection process, the support wheel 6 provides support for the workpiece, and the drive wheel 5, driven by the detection unit 4, rotates the workpiece through friction, thereby realizing continuous measurement of the outer diameter of the workpiece around its entire circumference. After the inspection is completed, the conveying unit 3 continues to transport the workpiece to the location of the sorting unit 7. The sorting unit 7 sorts the workpiece according to preset standards. Through the above structural design and process arrangement, the automatic detection mechanism in this solution realizes the fully automated operation from workpiece loading and outer diameter detection to sorting, which not only significantly improves detection efficiency and accuracy, but also effectively ensures the consistency of product quality and reduces labor costs.

[0061] Furthermore, the detection unit 4 also includes: a support base 8, with support bases 8 on both sides of the workbench 1, and support wheels 6 on both sides of the support base 8, with a drive wheel 5 on one of the support bases 8; a first drive member 9, with a pulley assembly at its output end, the drive wheel 5 being connected to the pulley assembly, the first drive member 9 driving the drive wheel 5 to rotate through the pulley assembly; and a second drive member 10, connected to one of the support bases 8, with a support block 11 at its output end, the first drive member 9 and the drive wheel 5 being connected to the support block 11, the second drive member 10 driving the first drive member 9 and the drive wheel 5 to move vertically through the support block 11; the first drive member 9 is preferably a motor, and the second drive member 10 can be a motor, a hydraulic cylinder, or a pneumatic cylinder.

[0062] Furthermore, the pulley assembly includes: a driving pulley 12, which is disposed at the output end of the first driving member 9; a driven pulley 13, on which a connecting shaft 14 is disposed, one end of which is connected to the driven pulley 13 and the other end of which is connected to the driving pulley 5; and a belt 15, which is sleeved between the driving pulley 12 and the driven pulley 13. During operation, the first driving member 9 is started, and the driving pulley 12 at its output end begins to rotate. The rotation of the driving pulley 12 is transmitted to the driven pulley 13 through the belt 15 sleeved on it. Since the driven pulley 13 and the driving pulley 5 are rigidly connected through the connecting shaft 14, when the driven pulley 13 is rotated by the power transmitted from the belt 15, it will directly transmit the torque to the driving pulley 5 through the connecting shaft 14, thereby causing the driving pulley 5 to rotate synchronously.

[0063] During operation, the conveying unit 3 transports the workpiece to the support base 8. The second drive component 10, located on one side of the support base 8, is activated, driving the first drive component 9 and the drive wheel 5 to move vertically downwards through the support block 11 until the drive wheel 5 is in close contact with the workpiece. At this time, one end of the workpiece is clamped between the drive wheel 5 and the support wheel 6 on one side, while the other end is assisted by the support wheel 6 on the other side of the support base 8. The second drive component 10 stops driving, and the first drive component 9 is activated, transmitting power to the drive wheel 5 through the pulley assembly. As the drive wheel 5 rotates, it drives the workpiece to rotate synchronously through friction. Driven by the first drive component 9, the drive wheel 5 drives the workpiece to rotate one revolution through friction, thereby enabling the detection unit 4 to continuously measure the outer diameter of the workpiece around its entire circumference.

[0064] Furthermore, the detection unit 4 also includes: a support platform 16, which is mounted on a support base 8 on the other side; a first contact block 17 and a second contact block 18 are mounted on the support platform 16, the first contact block 17 is fixed on the support platform 16, and the second contact block 18 is movably mounted on the support platform 16, with the first contact block 17 and the second contact block 18 respectively moving against the two sides of the workpiece in the radial direction; a third driving member 19, which is mounted on the support platform 16, with a driving rod 20 at the output end of the third driving member 19, a first connecting part 21 on the first contact block 17, and a second connecting part 22 on the second contact block 18, with one end of the driving rod 20 passing through the first connecting part 21 and connecting to the second connecting part 22, and the third driving member 19 driving the second contact block 18 to move through the driving rod 20; and a measuring member 23, with a push rod 24 at its sensing end, one end of which passes through the first connecting part 21 and connects to the second connecting part 22, for real-time detection of the displacement of the second contact block 18, thereby reflecting the change in the outer diameter of the workpiece.

[0065] During operation, the conveying unit 3 transports the workpiece to the location of the detection unit 4. The workpiece is placed on the support base 8, with one end held by the drive wheel 5 and a support wheel 6 on one side, and the other end located between the first contact block 17 and the second contact block 18. The third drive component 19 is activated, driving the second contact block 18 towards the workpiece via the drive rod 20 until the first contact block 17 and the second contact block 18 contact the two sides of the workpiece in the radial direction. At the same time, the push rod 24 of the measuring component 23 moves synchronously with the second contact block 18, recording its displacement changes in real time. Subsequently, the drive wheel 5 rotates under the drive of the first drive component 9, and drives the workpiece to rotate synchronously for one revolution through friction. During this process, the first contact block 17 and the second contact block 18 always maintain contact with the workpiece. The measuring component 23 indirectly obtains the external contour information of the workpiece by detecting the displacement change of the second contact block 18, thereby realizing continuous measurement of its outer diameter accuracy throughout the entire circumference. Finally, the workpiece is judged to be qualified according to the preset tolerance range. The third drive component 19 can be a motor, a hydraulic cylinder, or a pneumatic cylinder, and the measuring component 23 is preferably an electronic ruler.

[0066] Furthermore, the feeding unit 2 includes: a hopper 25; a pusher plate 26, one end of which is movably inserted into the hopper 25 and movably abuts against one side of the inner wall of the hopper 25, for pushing the workpiece out of the hopper 25; and a fourth drive member 27, the end of the pusher plate 26 away from the hopper 25 is connected to the output end of the fourth drive member 27, and the fourth drive member 27 is used to drive the pusher plate 26 to move.

[0067] Furthermore, the feeding unit 2 also includes: a first conveyor belt 28, a guide slope 29 is inclinedly provided on one side of the hopper 25, the first conveyor belt 28 is located below the guide slope 29, and is used to receive the workpieces sliding down along the guide slope 29 and transport them; and a detection component 30, which is set on the first conveyor belt 28, and is used to detect whether the workpiece has moved to a preset position.

[0068] During operation, the fourth drive component 27 drives the push plate 26 to move vertically upward, pushing out the bottommost shaft-type workpieces. Under the action of gravity, the workpieces slide down the guide slope 29 and fall onto the first conveyor belt 28 for transport. When the workpiece is transported to the preset position by the first conveyor belt 28, the detection component 30 identifies it, at which point the workpiece is within the gripping range of the transport unit 3. Through the linkage control of the push plate 26 and the fourth drive component 27, combined with the collaborative design of the guide slope 29 and the first conveyor belt 28, stable transport of shaft-type workpieces can be achieved, effectively avoiding jamming or misalignment problems and ensuring the continuity of the inspection process. In addition, the design of the push plate 26 closely fitting the inner wall of one side of the hopper 25 helps to prevent the shaft-type workpieces from tilting or jamming during the pushing process, improving the reliability and consistency of the feeding process. The fourth drive component 27 can be a motor, hydraulic cylinder, or pneumatic cylinder; the detection component 30 can be a displacement sensor or other sensing device.

[0069] Furthermore, the conveying unit 3 includes: a pneumatic gripper 31, which is movably disposed above the first conveyor belt 28 for gripping and conveying workpieces on the first conveyor belt 28; a first movable seat 32, on which a plurality of pneumatic grippers 31 are disposed, and the first movable seat 32 is used to drive the pneumatic grippers 31 to move; a fifth driving member 33, on which the first movable seat 32 is connected, and the fifth driving member 33 is used to drive the first movable seat 32 to move in the vertical direction; and a sixth driving member 34, on which the fifth driving member 33 is connected, and the sixth driving member 34 drives the first movable seat 32 to move in the horizontal direction through the fifth driving member 33.

[0070] When the first conveyor belt 28 transports the workpiece to the preset gripping position, the pneumatic gripper 31 is directly above the workpiece. At this time, the fifth drive unit 33 is activated, driving the first moving seat 32 and the pneumatic gripper 31 to move downwards in the vertical direction. After reaching the gripping position, they stop, and the pneumatic gripper 31 clamps the workpiece. Subsequently, the fifth drive unit 33 reverses its action, driving the gripper to rise, so that the workpiece is released from the first conveyor belt 28. At the same time, the sixth drive unit 34 is activated, driving the fifth drive unit 33 and the first moving seat 32 to move in the horizontal direction, realizing the transport of the clamped workpiece. The fifth drive unit 33 and the sixth drive unit 34 are preferably intersecting linear guide rails.

[0071] Furthermore, the sorting unit 7 includes: a second movable seat 35, which is movably disposed below the movement path of the workpiece after inspection, for receiving the workpiece and classifying it; a baffle 36, which is fixed on the second movable seat 35; a rotating shaft 37, which is rotatably disposed on the second movable seat 35, and a rotating block 38 is connected to the rotating shaft 37. The rotating block 38 and the baffle 36 form a placement groove 39. The rotating block 38 and the baffle 36 have a closed state and an open state. The closed state is used to form the placement groove 39, and the open state is used to release the workpiece.

[0072] Furthermore, the sorting unit 7 also includes: a seventh drive member 40, with a rotating shaft 37 connected to the output end of the seventh drive member 40, the seventh drive member 40 being used to drive the rotating shaft 37 to rotate; and an eighth drive member 41, with a second movable seat 35 connected to the eighth drive member 41, the eighth drive member 41 being used to drive the second movable seat 35 to move; wherein, the seventh drive member 40 may be a motor or a cylinder, and the eighth drive member 41 is preferably a linear guide rail.

[0073] Furthermore, the sorting unit 7 also includes: a second conveyor belt 42 located below the second moving seat 35 for receiving qualified workpieces and transporting them to a designated location; and a collection unit 43 arranged in parallel with the second conveyor belt 42 for receiving unqualified workpieces.

[0074] Driven by the conveying unit 3, the pneumatic gripper 31 transports the inspected workpiece to the top of the second movable seat 35. When the workpiece transported by the pneumatic gripper 31 is a qualified product, firstly, the pneumatic gripper 31 releases the workpiece, and the workpiece falls into the placement slot 39 on the second movable seat 35. Then, the seventh drive unit 40 is activated, driving the rotating shaft 37 to rotate, causing the rotating block 38 connected to the rotating shaft 37 to separate from the baffle 36. The qualified product in the placement slot 39 falls from the second movable seat 35 into the second conveyor belt 42, and the second conveyor belt 42 transports the qualified product to... Designated position; when the workpiece transported by the pneumatic gripper 31 is a defective product, firstly, the pneumatic gripper 31 releases the workpiece, and the workpiece falls into the placement groove 39 on the second moving seat 35 below the pneumatic gripper 31; then, the eighth drive unit 41 is activated, driving the moving seat to move horizontally above the collection unit 43; subsequently, the seventh drive unit 40 is activated, driving the rotating shaft 37 to rotate, so that the rotating block 38 connected to the rotating shaft 37 and the baffle 36 are separated, the placement groove 39 has a gap, and the workpiece falls from the second moving seat 35 into the collection unit 43.

[0075] 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.

[0076] 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.

[0077] 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 mechanism for shaft-type workpieces, characterized in that, include: Workbench; The feeding unit is mounted on the worktable; A conveying unit, which is installed on the worktable, is used to convey workpieces; The detection unit is located to the side of the feeding unit and has a drive wheel and a support wheel arranged opposite to each other. The drive wheel is located above the support wheel. One end of the workpiece is placed between the drive wheel and the support wheel. The drive wheel is used to drive the workpiece to rotate, and the support wheel is used to provide support for the workpiece. The detection unit is used to detect the outer diameter of the workpiece. The sorting unit, located to the side of the detection unit, is used to classify and sort the workpieces that have completed the detection.

2. The automatic detection mechanism for shaft-type workpieces as described in claim 1, characterized in that, The detection unit further includes: The worktable is provided with support seats on both sides, and support wheels are provided on both sides of the support seats. The drive wheel is provided on one of the support seats. A first driving member has a pulley assembly at its output end. The driving wheel is connected to the pulley assembly, and the first driving member drives the driving wheel to rotate through the pulley assembly. The second driving member is connected to the support base on one side. The output end of the second driving member is provided with a support block. The first driving member and the driving wheel are both connected to the support block. The second driving member drives the first driving member and the driving wheel to move in the vertical direction through the support block.

3. The automatic detection mechanism for shaft-type workpieces as described in claim 2, characterized in that, The pulley assembly includes: The drive wheel is located at the output end of the first drive component; The driven wheel is supported by a connecting shaft, one end of which is connected to the driven wheel and the other end is connected to the drive wheel. A belt is fitted between the driving pulley and the driven pulley.

4. The automatic detection mechanism for shaft-type workpieces as described in claim 2, characterized in that, The detection unit further includes: A support platform, which is mounted on the support base on the other side; A first contact block and a second contact block are provided on the support platform. The first contact block is fixed on the support platform, and the second contact block is movably disposed on the support platform. The first contact block and the second contact block respectively move and abut against the two sides of the workpiece in the radial direction. A third driving component is disposed on the support platform. The output end of the third driving component is provided with a driving rod. The first contact block has a first connecting part, and the second contact block has a second connecting part. One end of the driving rod passes through the first connecting part and is connected to the second connecting part. The third driving component drives the second contact block to move through the driving rod. The measuring element has a push rod at its sensing end, one end of which passes through the first connecting part and is connected to the second connecting part, for detecting the displacement of the second contact block.

5. The automatic detection mechanism for shaft-type workpieces as described in claim 1, characterized in that, The feeding unit includes: silos; A push plate, one end of which is movably inserted into the hopper and movably abuts against the inner wall of one side of the hopper, is used to push the workpiece out of the hopper; The fourth driving component has one end of the push plate away from the hopper connected to the output end of the fourth driving component, which is used to drive the push plate to move.

6. The automatic detection mechanism for shaft-type workpieces as described in claim 5, characterized in that, The feeding unit also includes: The first conveyor belt has a guide slope on one side of the hopper. The first conveyor belt is located below the guide slope and is used to receive the workpiece that slides down the guide slope and transport it. A detection component, which is disposed on the first conveyor belt, is used to detect whether the workpiece has moved to a preset position.

7. The automatic detection mechanism for shaft-type workpieces as described in claim 6, characterized in that, The transport unit includes: A pneumatic gripper is movably positioned above the first conveyor belt for gripping and transporting the workpiece on the first conveyor belt. A first movable seat is provided with a plurality of pneumatic grippers, and the first movable seat is used to drive the pneumatic grippers to move. The fifth driving member, the first movable seat is connected to the fifth driving member, and the fifth driving member is used to drive the first movable seat to move in the vertical direction; A sixth driving component is provided, wherein the fifth driving component is connected to the sixth driving component, and the sixth driving component drives the first movable seat to move in the horizontal direction through the fifth driving component.

8. The automatic detection mechanism for shaft-type workpieces as described in claim 1, characterized in that, The sorting unit includes: The second movable seat is movably positioned below the movement path of the workpiece after inspection, for receiving the workpiece and classifying it. A baffle, which is fixedly mounted on the second movable seat; A rotating shaft is rotatably mounted on the second movable seat. A rotating block is connected to the rotating shaft. The rotating block and the baffle form a placement groove. The rotating block and the baffle have a closed state and a separated state. The closed state is used to form the placement groove, and the separated state is used to release the workpiece.

9. The automatic detection mechanism for shaft-type workpieces as described in claim 8, characterized in that, The sorting unit further includes: The seventh driving component, wherein the rotating shaft is connected to the output end of the seventh driving component, and the seventh driving component is used to drive the rotating shaft to rotate; An eighth driving member is provided, and the second movable seat is connected to the eighth driving member, which is used to drive the second movable seat to move.

10. The automatic detection mechanism for shaft-type workpieces as described in claim 9, characterized in that, The sorting unit further includes: The second conveyor belt, located below the second movable seat, is used to receive the inspected and qualified workpieces and transport them to a designated location; A collection element, arranged alongside the second conveyor belt, is used to receive the workpieces that fail the inspection.

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