Gear precision detection device

Abstract

The utility model relates to a gear precision detection device which comprises a base plate, a rotating platform is installed on the base plate, a moving structure is further installed at the upper end of the base plate, a lifting structure is installed on the moving structure, and a detection assembly for detecting the gear precision is installed on the lifting structure. A clamping structure for clamping a gear is mounted on the rotating platform and comprises a three-jaw chuck, a clamping block, a threaded head, a mounting column, a telescopic spring, a supporting plate, a movable plate and a hollow column; the three-jaw chuck is mounted on the rotating platform, clamping blocks are distributed on the three-jaw chuck, threaded heads are mounted at the upper ends of the clamping blocks, mounting columns are mounted on the upper end faces of the threaded heads, the surfaces of the mounting columns are sleeved with telescopic springs, and the surfaces of the mounting columns are further sleeved with supporting plates. The gear clamping device solves the problems that when a gear is clamped, the gear is close to the upper end of a chuck, a probe collides with a pull disc, and when the gear is placed on the chuck, the gear easily falls off and collides with the surface of the chuck.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, specifically a gear precision testing device. Background Art

[0002] Gears are important mechanical transmission components. After gear manufacturing, they need to be inspected for precision, including the flatness of their surfaces and the accuracy between their teeth. This requires specialized gear precision inspection equipment. Typical inspection equipment uses probes and moving mechanisms to inspect gears. Generally, the gear is placed on a chuck for inspection. However, when placing the gear on the chuck, it is clamped by jaws, requiring the user to slowly place the gear onto the chuck to prevent damage. This method is inconvenient for both placement and handling and therefore needs improvement.

[0003] To address the aforementioned issues, Chinese patent CN218329628U, a testing device for gear precision measurement, addresses these problems through its appendix. Figure 1 As can be seen, the gear is clamped by clamping from above and below. However, this method has two problems. First, it is difficult to find the center position. Second, it cannot be used to test gears of different specifications, since the middle part of the gear usually has mounting holes. Therefore, it cannot effectively solve the above technical problems.

[0004] Secondly, in actual testing, the closer the gear is to the bottom of the chuck, the more likely the probe will collide with the chuck. Therefore, during testing, the user needs to hold the gear in the middle of the jaw (hollow column), which is quite inconvenient.

[0005] Therefore, in order to facilitate gear clamping, prevent the gear from being positioned close to the upper surface of the chuck when clamped, which could easily cause the probe to collide with the chuck, and prevent the gear from falling and hitting the chuck surface when placed on the chuck, a gear precision detection device is proposed to solve the technical problems existing in the prior art. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a gear precision testing device, which solves the problems of collision between the probe and the pull plate when the gear is close to the upper end of the chuck during clamping, and the easy for the gear to fall and bump against the chuck surface when placed on the chuck.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a gear precision testing device, comprising a base plate, a rotating platform mounted on the base plate, and a movable structure mounted on the upper end of the base plate. A lifting structure is mounted on the movable structure, and a testing component for testing gear precision is mounted on the lifting structure. A clamping structure for clamping the gear is mounted on the rotating platform. The clamping structure includes a three-jaw chuck, clamping blocks, a threaded head, a mounting column, a telescopic spring, a support plate, a movable plate, and a hollow column. The three-jaw chuck is mounted on the rotating platform, and clamping blocks are distributed on the three-jaw chuck. A threaded head is mounted on the upper end of the clamping blocks, and a mounting column is mounted on the upper end face of the threaded head. A telescopic spring is sleeved on the surface of the mounting column, and a support plate is also sleeved on the surface of the mounting column. The lower end of the support plate contacts the upper end of the telescopic spring, and a movable plate is movably mounted on the outer end of the support plate. A hollow column is mounted on the surface of the threaded head, and an opening is formed on the surface of the hollow column. A rubber pad is sleeved on the surface of the hollow column.

[0008] Furthermore, the rotating platform includes a rotating platform shell, a reduction motor, gears, a toothed belt, and a turntable. The rotating platform shell is installed on the upper end of the base plate. A reduction motor is installed inside the rotating platform shell, and a gear is connected to the output end of the reduction motor. A mounting plate is provided at the upper end of the rotating platform shell, and a turntable is installed on the mounting plate. A gear is provided at the lower end of the turntable, and the gear and the turntable are connected by a toothed belt to form a transmission. A three-jaw chuck is installed on the upper end of the turntable.

[0009] Furthermore, the moving structure includes an X-axis moving structure and a Y-axis moving structure. The X-axis moving structure includes an X-axis moving base, a first servo motor, and a first slide rail. The X-axis moving base is installed on the upper end of the base plate, and the first servo motor and the first slide rail are respectively installed on the upper end of the X-axis moving base. A slider is movably installed on the surface of the first slide rail. A ball screw is connected to the output end of the first servo motor, and the Y-axis moving structure is movably installed on the surface of the ball screw.

[0010] As a preferred technical solution, the Y-axis moving structure includes a Y-axis moving base, a second servo motor, an upper mounting platform, and a second slide rail. The Y-axis moving base is mounted on a first slide rail. The second servo motor and the second slide rail are respectively mounted on the upper end of the Y-axis moving base. A slider is movable on the surface of the second slide rail. A ball screw is connected to the output end of the second servo motor. The upper mounting platform is movably mounted on the ball screw. The lower end of the upper mounting platform is connected to the slider. A lifting structure is mounted on the upper end of the upper mounting platform.

[0011] Furthermore, the lifting structure includes a lifting platform, a third servo motor, a bearing housing, and a threaded shaft. The lifting platform is installed on the upper end face of the upper mounting platform. The third servo motor is installed inside the upper mounting platform. The output end of the third servo motor is connected to the threaded shaft. A bearing housing is installed at the top of the inner side of the lifting platform. The threaded shaft is connected to the inner ring of the bearing housing. A detection component is installed on the surface of the threaded shaft.

[0012] As a preferred technical solution, the detection component includes an extension plate, a movable plate, a probe, and a third guide rail. The movable plate is movably mounted on the surface of the threaded shaft, and a probe is mounted on the surface of the movable plate. Extension plates are mounted on both the upper and lower ends of the movable plate. A third guide rail is mounted on the inner side of the movable plate, and a slider is movably mounted on the surface of the third guide rail. The slider is connected to the side of the movable plate.

[0013] Compared with the prior art, the present invention provides a gear precision testing device, which has the following beneficial effects:

[0014] 1. In use, this testing device places the gear on the support plate for support. The telescopic spring provides a certain amount of cushioning, which effectively prevents the distance between the gear and the upper part of the three-jaw chuck from being too short, thus preventing the probe from colliding with the gear during testing. Secondly, the gear is not too low when clamped, making it convenient to pick up or place. Therefore, the above method solves the problems of the probe colliding with the chuck when the gear is close to the upper part of the chuck during clamping, and the problem of the gear easily falling and hitting the chuck surface when placed on the chuck. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the movable structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the rotating platform of this utility model;

[0018] Figure 4 This is a schematic diagram of the clamping block structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the hollow column structure of this utility model;

[0020] Figure 6 This utility model Figure 4 A magnified schematic diagram of the structure at point A;

[0021] Figure 7 This is a schematic diagram of the lifting structure of this utility model;

[0022] Figure 8 This is a schematic diagram of the internal structure of the lifting structure of this utility model.

[0023] In the diagram: 1. Base plate; 2. Rotating platform housing; 3. Three-jaw chuck; 4. X-axis moving base; 5. Lifting platform; 6. First servo motor; 7. First slide rail; 8. Y-axis moving base; 9. Second servo motor; 10. Upper mounting platform; 11. Second slide rail; 12. Clamping block; 13. Threaded head; 14. Mounting column; 15. Telescopic spring; 16. Support plate; 17. Movable plate; 18. Hollow column; 19. Gear motor; 20. Gear; 21. Toothed belt; 22. Turntable; 23. Extension plate; 24. Moving plate; 25. Probe; 26. Third servo motor; 27. Bearing seat; 28. Threaded shaft; 29. ​​Third guide rail. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example

[0026] Please see Figure 1-8 This utility model provides the following technical solution: a gear precision testing device, including a base plate 1, a rotating platform mounted on the base plate 1, and a movable structure mounted on the upper end of the base plate 1. A lifting structure is mounted on the movable structure, and a testing component for testing gear precision is mounted on the lifting structure. A clamping structure for clamping the gear is mounted on the rotating platform, and the clamping structure includes a three-jaw chuck 3, a clamping block 12, a threaded head 13, a mounting column 14, a telescopic spring 15, a support plate 16, a movable plate 17, and a hollow column 18; the three-jaw chuck 3... Installed on a rotating platform, a three-jaw chuck 3 has clamping blocks 12 distributed on it. A threaded head 13 is installed on the upper end of the clamping block 12. An installation post 14 is installed on the upper end face of the threaded head 13. A telescopic spring 15 is sleeved on the surface of the installation post 14. A support plate 16 is also sleeved on the surface of the installation post 14. The lower end of the support plate 16 contacts the upper end of the telescopic spring 15. A movable plate 17 is movably installed on the outer end of the support plate 16. A hollow column 18 is installed on the surface of the threaded head 13. An opening is opened on the surface of the hollow column 18. A rubber pad is sleeved on the surface of the hollow column 18.

[0027] In this implementation scheme, the specific working principle is as follows: When using this device, the gear is placed on the support plate 16, and the hollow column 18 is passed through the mounting hole in the middle of the gear. Then, through the action of the three-jaw chuck 3, the clamping block 12 extends outward, which clamps the gear. This ensures that the gear is not too close to the upper end of the three-jaw chuck 3, thus preventing the probe 25 from colliding with the three-jaw chuck 3. Secondly, through the action of the telescopic spring 15, the gear is cushioned when placed on the support plate 16 to prevent bumps. This also ensures that the gear is in the middle and upper position of the hollow column 18, making the placement and removal of the gear more convenient. Then, the gear accuracy is detected by the simultaneous cooperation of the rotating platform, the moving structure, and the detection components. The detection method is the same as the existing gear detection method and has not changed. Therefore, how to detect the gear will not be described in detail here.

[0028] It should also be noted that due to repeated clamping of the hollow column 18, its surface will inevitably be deformed due to compression. Replacing the hollow column 18 is also relatively convenient; it can be removed from the threaded head 13 simply by removing the hollow column 18.

[0029] Based on the above, the details of the rotating platform can be found in [reference needed]. Figure 1 and Figure 3 As can be seen, the rotating platform includes a rotating platform shell 2, a reduction motor 19, a gear 20, a toothed belt 21, and a turntable 22. The rotating platform shell 2 is installed on the upper end of the base plate 1. The reduction motor 19 is installed inside the rotating platform shell 2, and the output end of the reduction motor 19 is connected to the gear 20. A mounting plate is provided at the upper end of the rotating platform shell 2, and a turntable 22 is installed on the mounting plate. A gear is provided at the lower end of the turntable 22. The gear 20 and the turntable 22 are connected by a toothed belt 21 to form a transmission. A three-jaw chuck 3 is installed on the upper end of the turntable 22. The reduction motor 19 drives the turntable 22 to rotate through the action of the gear 20 and the toothed belt 21, thereby driving the three-jaw chuck 3 to rotate.

[0030] To facilitate the detection of component movement and thus enable better synchronous detection of gear rotation, please refer to [link / reference needed]. Figure 2 As can be seen, the moving structure includes an X-axis moving structure and a Y-axis moving structure. The X-axis moving structure includes an X-axis moving base 4, a first servo motor 6, and a first slide rail 7. The X-axis moving base 4 is installed on the upper end of the base plate 1, and the first servo motor 6 and the first slide rail 7 are respectively installed on the upper end of the X-axis moving base 4. A slider is movably installed on the surface of the first slide rail 7. The output end of the first servo motor 6 is connected to a ball screw, and the Y-axis moving structure is movably installed on the surface of the ball screw.

[0031] Based on the above, the details of the Y-axis movement structure can be found in [reference needed]. Figure 2As can be seen, the Y-axis moving structure includes a Y-axis moving base 8, a second servo motor 9, an upper mounting platform 10, and a second slide rail 11. The Y-axis moving base 8 is mounted on the first slide rail 7. The second servo motor 9 and the second slide rail 11 are respectively mounted on the upper end of the Y-axis moving base 8. A slider is movable on the surface of the second slide rail 11. The output end of the second servo motor 9 is connected to a ball screw. The upper mounting platform 10 is movably mounted on the ball screw. The lower end of the upper mounting platform 10 is connected to the slider. A lifting structure is mounted on the upper end of the upper mounting platform 10.

[0032] To ensure that the height of the detection component corresponds to that of the gear, please refer to the details of the lifting structure. Figure 7 and Figure 8 As can be seen, the lifting structure includes a lifting platform 5, a third servo motor 26, a bearing housing 27, and a threaded shaft 28. The lifting platform 5 is installed on the upper end face of the upper mounting platform 10. The third servo motor 26 is installed inside the upper mounting platform 10. The output end of the third servo motor 26 is connected to the threaded shaft 28. The bearing housing 27 is installed at the top of the inner side of the lifting platform 5. The threaded shaft 28 is connected to the inner ring of the bearing housing 27. A detection component is installed on the surface of the threaded shaft 28. The third servo motor 26 drives the threaded shaft 28 to rotate, thereby driving the detection component to lift and lower.

[0033] Based on the above, please refer to the details of the detection components. Figure 7 and Figure 8 As can be seen, the detection assembly includes an extension plate 23, a movable plate 24, a probe 25, and a third guide rail 29. The movable plate 24 is movably mounted on the surface of the threaded shaft 28. The probe 25 is mounted on the surface of the movable plate 24. The extension plate 23 is mounted on both the upper and lower ends of the movable plate 24. The third guide rail 29 is mounted on the inner side of the lifting mechanism 5. A slider is movably mounted on the surface of the third guide rail 29. The slider is connected to the side of the movable plate 24. The probe 25 is used to detect the flatness of the gear surface and the accuracy between each tooth. In order to facilitate the movement of the movable plate 24, the third guide rail 29 enables the movable plate 24 to move more smoothly during the movement process.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A gear precision testing device, comprising a base plate (1), a rotating platform mounted on the base plate (1), and a movable structure mounted on the upper end of the base plate (1), a lifting structure mounted on the movable structure, and a testing component for testing gear precision mounted on the lifting structure, characterized in that: A clamping structure for holding gears is installed on the rotating platform. The clamping structure includes a three-jaw chuck (3), a clamping block (12), a threaded head (13), a mounting column (14), a telescopic spring (15), a support plate (16), a movable plate (17), and a hollow column (18). The three-jaw chuck (3) is installed on the rotating platform. The clamping block (12) is distributed on the three-jaw chuck (3). The threaded head (13) is installed on the upper end of the clamping block (12). The mounting column (14) is installed on the upper end face of the threaded head (13). The telescopic spring (15) is sleeved on the surface of the mounting column (14). The support plate (16) is also sleeved on the surface of the mounting column (14). The lower end of the support plate (16) contacts the upper end of the telescopic spring (15). The movable plate (17) is movably installed on the outer end of the support plate (16). The hollow column (18) is installed on the surface of the threaded head (13). An opening is opened on the surface of the hollow column (18). A rubber pad is sleeved on the surface of the hollow column (18).

2. The gear precision testing device according to claim 1, characterized in that: The rotating platform includes a rotating platform shell (2), a reduction motor (19), a gear (20), a toothed belt (21), and a turntable (22). The rotating platform shell (2) is installed on the upper end of the base plate (1). The reduction motor (19) is installed inside the rotating platform shell (2). The output end of the reduction motor (19) is connected to the gear (20). An installation plate is provided at the upper end of the rotating platform shell (2). A turntable (22) is installed on the installation plate. A gear is provided at the lower end of the turntable (22). The gear (20) and the turntable (22) are connected by a toothed belt (21) to form a transmission. A three-jaw chuck (3) is installed at the upper end of the turntable (22).

3. The gear precision testing device according to claim 1, characterized in that: The moving structure includes an X-axis moving structure and a Y-axis moving structure. The X-axis moving structure includes an X-axis moving base (4), a first servo motor (6), and a first slide rail (7). The X-axis moving base (4) is installed on the upper end of the base plate (1), and the first servo motor (6) and the first slide rail (7) are respectively installed on the upper end of the X-axis moving base (4). A slider is movably installed on the surface of the first slide rail (7). The output end of the first servo motor (6) is connected to a ball screw, and the Y-axis moving structure is movably installed on the surface of the ball screw.

4. The gear precision testing device according to claim 3, characterized in that: The Y-axis moving structure includes a Y-axis moving base (8), a second servo motor (9), an upper mounting platform (10), and a second slide rail (11). The Y-axis moving base (8) is mounted on the first slide rail (7). The second servo motor (9) and the second slide rail (11) are respectively mounted on the upper end of the Y-axis moving base (8). A slider is movable on the surface of the second slide rail (11). A ball screw is connected to the output end of the second servo motor (9). The upper mounting platform (10) is movably mounted on the ball screw. The lower end of the upper mounting platform (10) is connected to the slider. A lifting structure is installed on the upper end of the upper mounting platform (10).

5. The gear precision testing device according to claim 1, characterized in that: The lifting structure includes a lifting machine (5), a third servo motor (26), a bearing seat (27), and a threaded shaft (28). The lifting machine (5) is installed on the upper end face of the upper mounting platform (10). The third servo motor (26) is installed inside the upper mounting platform (10). The output end of the third servo motor (26) is connected to the threaded shaft (28). The bearing seat (27) is installed at the top of the inner side of the lifting machine (5). The threaded shaft (28) is connected to the inner ring of the bearing seat (27). A detection component is installed on the surface of the threaded shaft (28).

6. The gear precision testing device according to claim 1, characterized in that: The detection assembly includes an extension plate (23), a movable plate (24), a probe (25), and a third guide rail (29). The movable plate (24) is movably mounted on the surface of the threaded shaft (28). The probe (25) is mounted on the surface of the movable plate (24). The extension plate (23) is mounted on both the upper and lower ends of the movable plate (24). The third guide rail (29) is mounted on the inner side of the lifting mechanism (5). A slider is movably mounted on the surface of the third guide rail (29). The slider is connected to the side of the movable plate (24).

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