Shaft workpiece internal thread hole detection machine

Abstract

The utility model discloses a kind of shaft workpiece internal thread hole detection machines, it includes bunker, feeding mechanism, first thread detection device and material receiver, the feeding mechanism includes first clamping cylinder, second clamping cylinder, linkage plate, lifting cylinder and propelling cylinder, the first clamping cylinder with the first clamping cylinder is fixed on the linkage plate, the linkage plate is located in the output end of the lifting cylinder, the lifting cylinder is located in the output end of the propelling cylinder, the propelling cylinder drives the clamping cylinder horizontal movement, the first clamping cylinder with the second clamping cylinder is driven under the lifting cylinder with the propelling cylinder, shaft workpiece is transported from the bunker to the first thread detection device under the clamping of the first clamping cylinder, while the second clamping cylinder transports the shaft workpiece detected from the first thread detection device to the material receiver. The present application has the effect of improving the working efficiency of detecting shaft workpiece.

Description

Technical Field

[0001] This application relates to the field of testing machine technology, and in particular to a testing machine for internal thread holes in shaft workpieces. Background Technology

[0002] After the threaded hole is machined, in order to improve the pass rate of the finished product, the worker will inspect the threaded hole with a thread gauge. Chinese patent disclosure discloses a convenient thread inspection device (application number CN202420321827.1), including a base and a clamping component. The clamping component is located above the base and is used to clamp and fix the thread gauge. The base is provided with a drive mechanism, a detection mechanism, and a cleaning mechanism. The drive mechanism is used to drive the clamping component to rotate, the detection mechanism is used to detect the workpiece movement distance, and the cleaning mechanism is used to remove impurities from the thread gauge. The detection mechanism and the cleaning mechanism are both located on the same side of the clamping component. When performing thread inspection on a shaft workpiece, it is necessary to... After aligning the thread on the workpiece with the thread gauge, press the button to start the motor, causing the drive wheel to rotate. The rotation of the drive wheel drives the driven wheel to rotate via the transmission belt, which in turn drives the rotating shaft to rotate on the support base. The rotation of the rotating shaft drives the three-jaw chuck to rotate, which in turn drives the thread gauge to rotate. When the rotation of the thread gauge causes the workpiece to move along the axis of the rotating shaft towards the support base, the thread on the workpiece is considered qualified. However, when multiple workpieces need to be inspected, the operator needs to constantly load or unload the workpieces. Under long-term work, the operator will experience fatigue, resulting in low processing efficiency of the workpieces. Utility Model Content

[0003] The purpose of this invention is to provide a machine for inspecting internal thread holes in shaft workpieces, addressing the deficiencies and shortcomings of existing technologies.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The device includes a hopper, a feeding mechanism, a first thread detection device, and a receiving device. The feeding mechanism includes a first clamping cylinder, a second clamping cylinder, a linkage plate, a lifting cylinder, and a pushing cylinder. The first clamping cylinder is fixed to the linkage plate, which is located at the output end of the lifting cylinder. The lifting cylinder drives the first clamping cylinder to move vertically. The lifting cylinder is located at the output end of the pushing cylinder, which drives the clamping cylinder to move horizontally. Driven by the lifting cylinder and the pushing cylinder, the first and second clamping cylinders transport the shaft workpiece from the hopper to the first thread detection device under the clamping of the first clamping cylinder. Simultaneously, the second clamping cylinder transports the detected shaft workpiece from the first thread detection device to the receiving device.

[0005] Preferably, one side of the hopper has a screening assembly, which includes a first screening cylinder, a first screening plate, a second screening cylinder, a second screening plate, and a placement frame. The first screening cylinder and the second screening cylinder are arranged vertically upwards, and the first screening plate, the second screening plate, and the placement frame are arranged in a row. The first screening plate and the second screening plate are respectively fixed to the output ends of the first screening cylinder and the second screening cylinder.

[0006] Preferably, the device further includes a cleaning device located between the first thread detection device and the screening assembly. The cleaning device includes a first pushing cylinder, a first slider, and an air blowing pipe. The air blowing pipe is fixed to the first slider, and the first slider is fixed to the output end of the first pushing cylinder and slides horizontally. The feeding mechanism further includes a third clamping cylinder fixed to the linkage plate. The third clamping cylinder transports the shaft workpiece in the placement frame to the cleaning device and aligns it with the air blowing pipe.

[0007] Preferably, the first thread detection device includes a second push cylinder, a second slider, a servo motor, and a first detection head. The servo motor is fixed on the second slider, the first detection head is disposed at the output end of the servo motor, and the second push cylinder drives the second slider to slide horizontally.

[0008] Preferably, it further includes a second thread detection device, which is located between the first thread detection device and the receiving device. The second thread detection device includes a third push cylinder, a third slider and a second detection head. The second detection head is fixed on the third slider, and the third slider is fixed to the output end of the third push cylinder and slides horizontally.

[0009] Preferably, a processing seat is placed on one side of the feeding mechanism, and the processing seat has three processing slots, which correspond one-to-one with the air blowing pipe, the first detection head and the second detection head.

[0010] Preferably, it also includes a pressing assembly, which includes three pressing cylinders, each with a pressing block at its output end, and the three pressing blocks corresponding to the three processing slots respectively.

[0011] Preferably, the feeding mechanism further includes a fourth clamping cylinder, which transports the shaft workpiece from one side of the second detection head to the receiving device. The receiving device includes a qualified frame and a defective frame, and a guide assembly is provided between the qualified frame and the defective frame. The guide assembly includes a guide plate and a guide cylinder. The guide plate is located at the output end of the guide cylinder. When the piston rod of the guide cylinder retracts, the clamping end of the fourth clamping cylinder is located above the guide plate. When the piston rod of the guide cylinder extends, the clamping end of the fourth clamping cylinder is located above the defective frame.

[0012] Preferably, the qualified frame includes a partition plate, a structural frame, a rotating disk and a rotating motor. The rotating motor is fixed below the structural frame, the rotating disk rotates inside the structural frame and is fixed to the output end of the rotating motor. The partition plate is located inside the structural frame and divides the inner cavity of the structural frame into a feeding cavity and a storage cavity. One end of the partition plate forms a connecting channel with the inner sidewall of the structural frame.

[0013] In summary, this application includes at least one of the following beneficial technical effects: 1. When it is necessary to inspect the threaded holes of shaft workpieces, multiple uninspected shaft workpieces are placed in the hopper. Then, driven by the first and second screening cylinders, a single shaft workpiece is slid onto the placement rack. Subsequently, the first, second, third, and fourth clamping cylinders, in conjunction with the lifting and pushing cylinders, transfer the shaft workpieces on the placement rack to the processing slot corresponding to the air blowing pipe by the third clamping cylinder. The first clamping cylinder transfers the shaft workpieces in the processing slot corresponding to the air blowing pipe to the processing slot corresponding to the first detection head. The second clamping cylinder transfers the shaft workpieces in the processing slot corresponding to the first detection head to the processing slot corresponding to the second detection head. The fourth clamping cylinder transfers the shaft workpieces in the processing slot corresponding to the second detection head to the top of the receiving device, thereby realizing the inspection and processing of the threaded holes of the shaft workpieces. The threaded hole inspection process of the shaft workpieces is fully automatic, improving the working efficiency of shaft workpiece inspection. 2. The fourth clamping cylinder transfers the inspected shaft workpiece to the top of the guide assembly. When the shaft workpiece is a qualified product, the piston rod of the guide cylinder retracts, so that the guide plate is below the clamping end of the fourth clamping cylinder. Then the shaft workpiece falls onto the guide plate and slides into the qualified frame. When the shaft workpiece is a defective product, the piston rod of the guide cylinder extends, so that the defective frame is below the clamping end of the fourth clamping cylinder. Then the defective product falls into the defective frame. 3. After the guide plate transfers the shaft workpiece into the qualified frame, it slides into the unloading cavity. Then, the rotating motor drives the rotating disk to rotate, transferring the shaft workpiece in the unloading cavity to the storage cavity. This ensures that when the shaft workpiece slides into the qualified frame, it will not collide with the previous shaft workpiece due to the obstruction of the partition plate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the testing machine of this utility model; Figure 2 This is a schematic diagram of the structure of the hopper of this utility model; Figure 3 This is a cross-sectional schematic diagram of the hopper of this utility model; Figure 4 This is a schematic diagram of the feeding mechanism of this utility model; Figure 5 This is a schematic diagram of the feeding mechanism and pressing component of this utility model; Figure 6 This is a schematic diagram of the structure of the cleaning device, the first thread detection device, and the second thread detection device of this utility model; Figure 7 This is a schematic diagram of the material receiving device of this utility model.

[0015] In the diagram: 1. Machining platform; 2. Machining seat; 3. Material bin; 4. Feeding mechanism; 5. Pressing assembly; 6. Cleaning device; 7. First thread detection device; 8. Second thread detection device; 9. Screening assembly; 10. First screening cylinder; 11. First screening plate; 12. Connecting plate; 13. Second screening cylinder; 14. Second screening plate; 15. Placement rack; 16. Mounting plate; 17. First clamping cylinder; 18. Second clamping cylinder; 19. Third clamping cylinder; 20. Fourth clamping cylinder; 21. Linkage plate; 22. Sliding frame; 23. Lifting cylinder; 24. Vertical sliding plate; 25. Pushing cylinder; 26. Machining groove; 27. Pressing cylinder; 28. Horizontal plate; 2 9. Bracket; 30. First mounting bracket; 31. First push cylinder; 32. First slider; 33. Air blowing pipe; 34. Second mounting bracket; 35. Second push cylinder; 36. Second slider; 37. Servo motor; 38. First detection head; 39. Rotating rod; 40. Third mounting bracket; 41. Third push cylinder; 42. Third slider; 43. Second detection head; 44. Qualified frame; 45. Defective frame; 46. Placement frame; 47. Divider plate; 48. Structural frame; 49. Rotating disk; 50. Rotating motor; 51. Discharge chamber; 52. Storage chamber; 53. Connecting channel; 54. Guide assembly; 55. Guide plate; 56. Guide cylinder; 57. Receiving device. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] This application discloses a machine for inspecting internal thread holes in shaft workpieces.

[0018] Reference Figure 1 The assembly includes a processing platform 1, a processing seat 2, a hopper 3, a feeding mechanism 4, a pressing assembly 5, a cleaning device 6, a first thread detection device 7, a second thread detection device 8, and a receiving device 57. The processing seat 2, hopper 3, feeding mechanism 4, pressing assembly 5, cleaning device 6, first thread detection device 7, second thread detection device 8, and receiving device 57 are placed on the processing platform 1. The hopper 3 and receiving device 57 are located at opposite ends of the processing seat 2. The feeding mechanism 4 is located on one side of the processing seat 2, and the cleaning device 6, first thread detection device 7, and second thread detection device 8 are located on the other side of the processing seat 2. The cleaning device 6, first thread detection device 7, and second thread detection device 8 are arranged sequentially along the transport direction of the feeding mechanism 4.

[0019] Reference Figure 2 and Figure 3 A screening assembly 9 is placed at one end of the hopper 3 near the processing seat 2. The screening assembly 9 includes a first screening cylinder 10, a first screening plate 11, a connecting plate 12, a second screening cylinder 13, a second screening plate 14, and a placement frame 15. The bottom of the hopper 3, the upper end face of the first screening plate 11, the connecting plate 12, and the second screening plate 14 are inclined in the same direction. The first screening cylinder 10 and the second screening cylinder 13 are placed vertically upward. The first screening cylinder 10 is fixed to the inner side wall of the hopper 3. The first screening plate 11 is fixed to the output end of the first screening cylinder 10. The second screening cylinder 13 is fixed to the outer side wall of the hopper 3. The second screening plate 14 is fixed to the output end of the second screening cylinder 13. The connecting plate 12 is located between the first screening plate 11 and the second screening plate 14 and is fixed to the hopper 3. The placement frame 15 is located outside the second screening plate 14.

[0020] Reference Figure 4 and Figure 5The feeding mechanism 4 includes a mounting plate 16, a first clamping cylinder 17, a second clamping cylinder 18, a third clamping cylinder 19, a fourth clamping cylinder 20, a linkage plate 21, a sliding frame 22, a lifting cylinder 23, a vertical sliding plate 24, and a pushing cylinder 25. The sliding frame 22 slides horizontally on the mounting plate 16. The pushing cylinder 25 is fixed to the side wall of the mounting plate 16, and the output end of the pushing cylinder 25 is fixed to the side wall of the sliding frame 22. The lifting cylinder 23 is vertically fixed downwards to the upper end of the sliding frame 22. The vertical slide plate 24 slides vertically on the side wall of the sliding frame 22. The output end of the lifting cylinder 23 is fixed to the side wall of the vertical slide plate 24. The linkage plate 21 is horizontally fixed to the side wall of the vertical slide plate 24. The third clamping cylinder 19, the first clamping cylinder 17, the second clamping cylinder 18 and the fourth clamping cylinder 20 are evenly fixed on the linkage plate 21. The third clamping cylinder 19, the first clamping cylinder 17, the second clamping cylinder 18 and the fourth clamping cylinder 20 are evenly placed along the arrangement direction of the hopper 3 and the receiving device 57.

[0021] The machining base 2 is mounted on the mounting plate 16. Three machining slots 26 are evenly opened on the upper surface of the machining base 2. Three of the clamping ends of the third clamping cylinder 19, the first clamping cylinder 17, the second clamping cylinder 18 and the fourth clamping cylinder 20 correspond to the three machining slots 26 respectively. The machining slots 26 are for embedding and placing shaft workpieces.

[0022] The pressing assembly 5 includes three pressing cylinders 27, a horizontal plate 28 and two brackets 29. The horizontal plate 28 is mounted and fixed on the two brackets 29. The three pressing cylinders 27 are vertically downward and fixed to the side wall of the horizontal plate 28. A pressing block is fixed to the output end of the pressing cylinder 27. The lower end of the pressing block is in the shape of an arc groove.

[0023] Reference Figure 6 The cleaning device 6 includes a first mounting bracket 30, a first pushing cylinder 31, a first slider 32, and an air blowing pipe 33. One end of the first mounting bracket 30 is fixed to the side wall of the processing base 2. The first pushing cylinder 31 is horizontally fixed to the side wall of the first mounting bracket 30. The first slider 32 slides horizontally on the first mounting bracket 30. The output end of the first pushing cylinder 31 is fixed to the side wall of the first slider 32. The air blowing pipe 33 is embedded and fixed on the first slider 32. The outer end of the air blowing pipe 33 is connected to the air pump through a hose. The air blowing end of the air blowing pipe 33 corresponds to the processing groove 26 on the edge.

[0024] The first thread inspection device 7 includes a second mounting bracket 34, a second push cylinder 35, a second slider 36, a servo motor 37, and a first inspection head 38. The second mounting bracket 34 is fixed on the processing platform 1. The second push cylinder 35 is horizontally fixed to the side wall of the second mounting bracket 34. The second slider 36 slides horizontally on the second mounting bracket 34. The output end of the second push cylinder 35 is fixed to the side wall of the second slider 36. The servo motor 37 is fixed to the side wall of the second slider 36. A rotating rod 39 is rotatably connected inside the side wall of the second slider 36. One end of the rotating rod 39 is connected to the output end of the servo motor 37 through a coupling. One end of the rotating rod 39 is inserted into and slides inside one end of the first inspection head 38. A thread gauge is snapped and fixed at the other end of the first inspection head 38. The thread gauge corresponds to the processing groove 26 in the middle.

[0025] The second thread inspection device 8 includes a third mounting bracket 40, a third push cylinder 41, a third slider 42, and a second inspection head 43. The third mounting bracket 40 is mounted and fixed on the processing platform 1. The third push cylinder 41 is horizontally fixed to the side wall of the third mounting bracket 40. The third slider 42 slides horizontally on the third mounting bracket 40. The output end of the third push cylinder 41 is fixed to the side wall of the third slider 42. The second inspection head 43 is mounted on the third slider 42. One end of the second inspection head 43 is inserted and fixed with a thread stop gauge corresponding to the processing groove 26 on the other edge.

[0026] Multiple untested shaft workpieces are placed in the hopper 3. Then, driven sequentially by the first screening cylinder 10 and the second screening cylinder 13, a single shaft workpiece slides onto the placement rack 15. Subsequently, the first clamping cylinder 17, the second clamping cylinder 18, the third clamping cylinder 19, and the fourth clamping cylinder 20, in conjunction with the lifting cylinder 23 and the pushing cylinder 25, transfer the shaft workpiece placed on the placement rack 15 to the machining groove 26 corresponding to the air blowing pipe 33. Then, the air pump is activated, allowing the air blown from the air blowing pipe 33 to clean the threaded hole of the shaft workpiece. Afterwards, the first clamping cylinder 17 transfers the shaft workpiece in the machining groove 26 corresponding to the air blowing pipe 33 to the machining groove 26 corresponding to the first detection head 38. Then, the thread gauge of the second detection head 43, driven by the second pushing cylinder 35, approaches the threaded hole of the shaft workpiece, and then... The servo motor 37 drives the first inspection head 38 to rotate. With the threaded engagement of the thread gauge and the threaded hole, the thread gauge can rotate into the threaded hole, allowing the first inspection head 38 to slide horizontally relative to the rotating rod 39. After the thread gauge completes the inspection of the threaded hole, the servo motor 37 rotates in the opposite direction, causing the thread gauge to rotate out of the threaded hole. Then, the second clamping cylinder 18 transfers the shaft workpiece in the machining groove 26 corresponding to the first inspection head 38 to the machining groove 26 corresponding to the second inspection head 43. Subsequently, the third pushing cylinder 41 drives the second inspection head 43 to approach the shaft workpiece. When the threaded hole of the shaft workpiece is a qualified product, the thread stop gauge of the second inspection head 43 will not be inserted into the threaded hole of the shaft workpiece. The fourth clamping cylinder 20 transfers the shaft workpiece in the machining groove 26 corresponding to the second inspection head 43 to the top of the receiving device 57, thereby realizing the inspection and processing of the threaded hole of the shaft workpiece.

[0027] Reference Figure 7The receiving device 57 includes a qualified frame 44 and a defective frame 45. The defective frame 45 is placed on the processing platform 1. The qualified frame 44 includes a placement frame 46, a partition plate 47, a structural frame 48, a rotating disk 49, and a rotating motor 50. The structural frame 48 is installed on the placement frame 46. The rotating motor 50 is located inside the placement frame 46 and fixed to the bottom of the structural frame 48. The output end of the rotating motor 50 passes through the bottom of the structural frame 48. The rotating disk 49 is fixed to the output end of the rotating motor 50 and is located inside the structural frame 48. A connecting frame is fixed on the structural frame 48. The connecting frame is U-shaped. The partition plate 47 is fixed on the connecting frame. The partition plate 47 is located above the rotating disk 49. The partition plate 47 divides the structural frame 48 into a feeding chamber 51 and a storage chamber 52. The occupancy ratio of the feeding chamber 51 to the storage chamber 52 is 1:3. One end of the partition plate 47 forms a connecting channel 53 with the inner side wall of the structural frame 48. After the guide plate 55 transfers the shaft workpiece into the qualified frame 44, it slides into the unloading cavity 51. Then, the rotating motor 50 drives the rotating disk 49 to rotate, transferring the shaft workpiece in the unloading cavity 51 into the storage cavity 52. ​​This ensures that when the shaft workpiece slides into the qualified frame 44, it will not collide with the previous shaft workpiece due to the obstruction of the partition plate 47.

[0028] A guide assembly 54 is placed above the defective frame 45. The guide assembly 54 includes a guide plate 55 and a guide cylinder 56. The guide cylinder 56 is horizontally fixed on the third mounting bracket 40, and the guide plate 55 is placed at an angle and fixed to the output end of the guide cylinder 56. When the shaft workpiece is a qualified product, the piston rod of the guide cylinder 56 retracts, so that the guide plate 55 is located below the clamping end of the fourth clamping cylinder 20. Then the shaft workpiece falls onto the guide plate 55 and slides into the qualified frame 44. When the shaft workpiece is a defective product, the piston rod of the guide cylinder 56 extends, so that the defective frame 45 is located below the clamping end of the fourth clamping cylinder 20. Then the defective product falls into the defective frame 45.

[0029] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A machine for inspecting internal threaded holes in shaft workpieces, characterized in that: The device includes a hopper (3), a feeding mechanism (4), a first thread detection device (7), and a receiving device (57). The feeding mechanism (4) includes a first clamping cylinder (17), a second clamping cylinder (18), a linkage plate (21), a lifting cylinder (23), and a pushing cylinder (25). The first clamping cylinder (17) is fixed on the linkage plate (21), which is located at the output end of the lifting cylinder (23). The lifting cylinder (23) drives the first clamping cylinder (17) to move vertically. The lifting cylinder (23) is located at the output end of the pushing cylinder (25). The pushing cylinder (25) drives the clamping cylinder to move horizontally. Under the drive of the lifting cylinder (23) and the pushing cylinder (25), the first clamping cylinder (17) and the second clamping cylinder (18) transport the shaft workpiece from the hopper (3) to the first thread detection device (7) under the clamping of the first clamping cylinder (17). At the same time, the second clamping cylinder (18) transports the shaft workpiece that has been detected from the first thread detection device (7) to the receiving device (57).

2. The internal thread hole inspection machine for shaft workpieces according to claim 1, characterized in that, The hopper (3) has a screening component (9) on one side. The screening component (9) includes a first screening cylinder (10), a first screening plate (11), a second screening cylinder (13), a second screening plate (14), and a placement frame (15). The first screening cylinder (10) and the second screening cylinder (13) are arranged vertically upwards. The first screening plate (11), the second screening plate (14), and the placement frame (15) are arranged in a row. The first screening plate (11) and the second screening plate (14) are respectively fixed to the output ends of the first screening cylinder (10) and the second screening cylinder (13).

3. The internal thread hole inspection machine for shaft workpieces according to claim 2, characterized in that, It also includes a cleaning device (6), which is located between the first thread detection device (7) and the screening component (9). The cleaning device (6) includes a first push cylinder (31), a first slider (32) and an air blowing pipe (33). The air blowing pipe (33) is fixed on the first slider (32). The first slider (32) is fixed to the output end of the first push cylinder (31) and slides horizontally. The feeding mechanism (4) also includes a third clamping cylinder (19), which is fixed on the linkage plate (21). The third clamping cylinder (19) transports the shaft workpiece in the placement frame (15) to the cleaning device (6) and corresponds to the air blowing pipe (33).

4. The internal thread hole inspection machine for shaft workpieces according to claim 3, characterized in that, The first thread detection device (7) includes a second push cylinder (35), a second slider (36), a servo motor (37) and a first detection head (38). The servo motor (37) is fixed on the second slider (36), and the first detection head (38) is located at the output end of the servo motor (37). The second push cylinder (35) drives the second slider (36) to slide horizontally.

5. A shaft workpiece internal thread hole inspection machine according to claim 4, characterized in that, It also includes a second thread detection device (8), which is located between the first thread detection device (7) and the receiving device (57). The second thread detection device (8) includes a third push cylinder (41), a third slider (42) and a second detection head (43). The second detection head (43) is fixed on the third slider (42), and the third slider (42) is fixed to the output end of the third push cylinder (41) and slides horizontally.

6. A machine for inspecting internal thread holes in shaft workpieces according to claim 5, characterized in that, A processing seat (2) is placed on one side of the feeding mechanism (4). The processing seat (2) has three processing grooves (26), which correspond one-to-one with the air blowing pipe (33), the first detection head (38), and the second detection head (43).

7. A shaft workpiece internal thread hole inspection machine according to claim 6, characterized in that, It also includes a pressing assembly (5), which includes three pressing cylinders (27), and the output end of the pressing cylinders (27) is provided with a pressing block. The three pressing blocks correspond to the three processing grooves (26) respectively.

8. A machine for inspecting internal thread holes in shaft workpieces according to claim 5, characterized in that, The feeding mechanism (4) further includes a fourth clamping cylinder (20), which transports the shaft workpiece from one side of the second detection head (43) to the receiving device (57). The receiving device (57) includes a qualified frame (44) and a defective frame (45). A guide assembly (54) is provided between the qualified frame (44) and the defective frame (45). The guide assembly (54) includes a guide plate (55) and a guide cylinder (56). The guide plate (55) is located at the output end of the guide cylinder (56). When the piston rod of the guide cylinder (56) retracts, the clamping end of the fourth clamping cylinder (20) is located above the guide plate (55). When the piston rod of the guide cylinder (56) extends, the clamping end of the fourth clamping cylinder (20) is located above the defective frame (45).

9. A machine for inspecting internal thread holes in shaft workpieces according to claim 8, characterized in that, The qualified frame (44) includes a partition plate (47), a structural frame (48), a rotating disk (49), and a rotating motor (50). The rotating motor (50) is fixed below the structural frame (48). The rotating disk (49) rotates inside the structural frame (48) and is fixed to the output end of the rotating motor (50). The partition plate (47) is located inside the structural frame (48) and divides the inner cavity of the structural frame (48) into a feeding cavity (51) and a storage cavity (52). One end of the partition plate (47) forms a connecting channel (53) with the inner sidewall of the structural frame (48).

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