Gear precision detection device

Abstract

The utility model discloses a gear precision detection device, which relates to the field of gear detection and comprises a bottom plate, a bottom shell is mounted at the top of the bottom plate, and the top of the bottom shell is rotatably connected with a rotary table through a bearing. According to the utility model, the fixed shell, the worm, the worm gear, the threaded shaft, the threaded seat, the guide seat and the positioning column are arranged, and gear holes are formed in gears, so that when the gears are detected, a worker sleeves the gears on the periphery of the positioning column and then rotates the worm through the rotating handle, and the worm rotates to drive the worm gear to rotate and then drives the threaded shaft to rotate; when the threaded shaft rotates, the threaded base is driven to move, the threaded base drives the pulling plate to rotate, the pulling plate pulls the guide base to move and then drives the positioning columns to move outwards, the four positioning columns move at the same time, the rotating handle is not rotated any more after the protective sleeve is tightly attached to the inner wall of the gear hole, and at the moment, the four positioning columns can position the gear; therefore, the gear is located in the middle position, and the stability of the gear is improved.

Description

Technical Field

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

[0002] High-precision gear production requires the use of high-precision measurement technology to evaluate parameters such as gear geometry, dimensions, and surface quality. This may involve non-contact measurement using equipment such as optical measuring instruments and coordinate measuring machines to ensure the accuracy and reliability of the measurement results.

[0003] According to Chinese Patent No. CN218329628U, a detection device for gear precision measurement is disclosed. This utility model realizes the functionality of a gear precision measurement detection device by detecting and measuring gears through a probe assembly. With the clamping action of the upper and lower clamping heads, gears of different sizes can be well clamped. With the setting of the second guide rail, it is convenient for the fixed seat to move up and down, thereby facilitating the clamping action of the gear.

[0004] Regarding the aforementioned patent content, by setting up an upper clamping head and a lower clamping head, the gear needs to be clamped and fixed before gear inspection. The clamping method is to move the upper clamping head and cooperate with the lower clamping head to clamp and limit the gear. However, this limiting method is difficult to ensure that the gear is in the exact center position. When the gear is offset during clamping, it will not be in the exact center position, which will affect the subsequent inspection efficiency of the gear and reduce the clamping effect of the gear. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a gear precision detection device to solve the technical problem of inconvenience in quickly clamping and limiting gears.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gear precision testing device, comprising a base plate, a bottom shell mounted on the top of the base plate, and a turntable rotatably connected to the top of the bottom shell via a bearing. A mounting base is mounted on the top of the turntable, and a fixed shell is detachably mounted on the top of the mounting base. A worm gear is connected to one side of the fixed shell via a bearing, and a threaded shaft is connected to the inside of the fixed shell via a bearing. A threaded seat is fitted onto the outer wall of the threaded shaft, and a worm wheel is mounted below the outer wall of the threaded shaft. Four guide rods are fixed inside the fixed shell, and guide seats are fitted onto the outer walls of the guide rods. A pull plate is rotatably connected between the guide seats and the threaded seats. Four through slots are opened on the top of the fixed shell, and positioning pins are installed on the tops of the four guide seats, which respectively pass through the four through slots.

[0007] By adopting the above technical solution, when the threaded shaft rotates, it will drive the threaded seat to move, which in turn drives the pull plate to rotate, and the pull plate will pull the guide seat to move.

[0008] Furthermore, a sliding groove is provided on one side of the top of the base plate, and a sliding seat is provided inside the sliding groove. An electric push rod is installed on one side of the base plate, and the output end of the electric push rod is fixedly connected to the sliding seat through a piston rod.

[0009] By adopting the above technical solution, when the position of the electric slide needs to be adjusted, the operator can activate the electric push rod. The operation of the electric push rod can extend or retract the piston rod, thereby driving the slide to move.

[0010] Furthermore, an electric slide is mounted on the top of the slide block, and the output end of the electric slide block is connected to a connecting seat. A high-precision probe is rotatably mounted on one side of the connecting seat.

[0011] By adopting the above technical solution, the electric slide can drive the connecting seat to move when it is working, thereby driving the high-precision probe to move.

[0012] Furthermore, a protective sleeve is installed on the outer wall of the positioning post, and the protective sleeve is made of silicone material.

[0013] By adopting the above technical solution, the protective sleeve avoids direct contact between the positioning pin and the gear, thereby improving the protection effect on the gear.

[0014] Furthermore, the top of the mounting base has a slot, and a socket is inserted into the slot. The top of the socket is fixedly connected to the mounting shell.

[0015] By adopting the above technical solution, when installing the fixed shell, the staff can insert the socket into the slot to position the fixed shell.

[0016] Furthermore, a locking bolt extending into the socket is installed on one side of the fixed housing, and the socket is compatible with the slot.

[0017] By adopting the above technical solution, the socket can be locked and limited after the locking bolt is screwed into the socket, thus completing the installation of the fixing shell.

[0018] Furthermore, one end of the worm extends through the outside of the fixed housing and is equipped with a rotating handle, and the worm meshes with a worm wheel.

[0019] By adopting the above technical solution, it is convenient for workers to rotate the worm gear by turning the handle, and the rotation of the worm gear will drive the worm wheel to rotate.

[0020] Furthermore, a limiting groove is provided on one side of the inner side of the fixed shell, and a limiting plate is provided inside the limiting groove. One side of the limiting plate is fixedly connected to the threaded seat.

[0021] By adopting the above technical solution, when the threaded seat moves, it will drive the limiting plate to slide inside the limiting groove. The limiting plate can guide the threaded seat, thereby improving the stability of the threaded seat when it moves.

[0022] Furthermore, the positioning post is slidably connected to the guide rod via a guide seat.

[0023] By adopting the above technical solution, the positioning column can be moved when the guide seat slides on the guide rod, so as to adjust the position of the positioning column.

[0024] Furthermore, a motor is installed inside the bottom shell, and the output end of the motor is connected to a drive gear. A movable shaft is also connected inside the bottom shell through a bearing, and a driven gear is installed on the outer wall of the movable shaft. The top end of the movable shaft passes through the bottom shell and is fixedly connected to the turntable.

[0025] By adopting the above technical solution, when the motor is working, it can drive the drive gear to rotate, and the rotation of the drive gear will drive the driven gear to rotate, which in turn drives the movable shaft to rotate.

[0026] In summary, the present invention has the following main advantages:

[0027] 1. This utility model comprises a fixed shell, a worm gear, a worm wheel, a threaded shaft, a threaded seat, a guide seat, and positioning pins. Since gears have gear holes, when inspecting a gear, the operator places the gear around the positioning pins. Then, by rotating the worm gear with a handle, the worm gear rotates, which in turn rotates the worm wheel, which in turn rotates the threaded shaft. The rotation of the threaded shaft moves the threaded seat, which in turn moves the pull plate. The pull plate then moves the guide seat, which in turn moves the positioning pins outward. When all four positioning pins move simultaneously and the protective sleeve is tightly fitted to the inner wall of the gear hole, the handle is no longer rotated. At this point, the four positioning pins can position the gear to ensure that it is in the exact center position, improving the gear's stability and facilitating subsequent gear inspection, thus improving inspection efficiency. Furthermore, the movable positioning pins allow for positioning of gears with different inner hole diameters, improving applicability.

[0028] 2. This utility model has a protective sleeve made of silicone material, which prevents the positioning post from directly contacting the gear, thereby improving the protection of the gear. The guide rod can be used to position the guide seat, thereby improving the stability of the guide seat when it moves.

[0029] 3. By setting a limiting plate and a limiting groove, the limiting plate can guide the threaded seat and prevent the threaded seat from rotating, thereby improving the stability of the threaded seat when it moves. In addition, since the worm and worm wheel have self-locking properties, the worm wheel will not rotate when the worm is not rotated, thereby improving the stability of the positioning post and preventing the positioning post from moving at will. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the overall orthographic structure of this utility model;

[0032] Figure 3 This is a side sectional view of the fixed shell structure of this utility model;

[0033] Figure 4 This is a schematic diagram of the bottom shell structure of this utility model;

[0034] Figure 5 This is a schematic diagram of the positioning column structure of this utility model;

[0035] Figure 6 This is a schematic diagram of the worm gear structure of this utility model;

[0036] Figure 7 For the present utility model Figure 2 Enlarged structural diagram at point A;

[0037] Figure 8 For the present utility model Figure 3 A magnified structural diagram at point B in the middle.

[0038] In the diagram: 1. Base plate; 2. Electric slide table; 3. Connecting seat; 4. High-precision probe; 5. Slide groove; 6. Slide block; 7. Electric push rod; 8. Mounting seat; 9. Slot; 10. Socket; 11. Worm gear; 12. Locking bolt; 13. Turntable; 14. Protective sleeve; 15. Through groove; 16. Positioning pin; 17. Fixed shell; 18. Worm gear; 19. Pull plate; 20. Threaded shaft; 21. Threaded seat; 22. Guide rod; 23. Guide seat; 24. Limiting plate; 25. Limiting groove; 26. Motor; 27. Movable shaft; 28. Driven gear; 29. ​​Bottom shell; 30. Driving gear. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0040] The embodiments of this utility model will be described below based on its overall structure.

[0041] Example 1:

[0042] A gear precision testing device, such as Figures 1-8 As shown, the system includes a base plate 1, a base shell 29 mounted on top of the base plate 1, and a turntable 13 rotatably connected to the top of the base shell 29 via bearings. A mounting base 8 is mounted on the top of the turntable 13, and a fixed shell 17 is detachably mounted on the top of the mounting base 8. A worm gear 18 is connected to one side of the interior of the fixed shell 17 via bearings, and a threaded shaft 20 is connected to the interior of the fixed shell 17 via bearings. A threaded seat 21 is fitted onto the outer wall of the threaded shaft 20, and a worm wheel 11 is mounted below the outer wall of the threaded shaft 20. The threaded shaft 20 rotates... The threaded seat 21 moves, which in turn drives the pull plate 19 to rotate. The pull plate 19 then pulls the guide seat 23 to move. Four guide rods 22 are fixed inside the fixed shell 17, and the guide seat 23 is sleeved on the outer wall of the guide rod 22. The pull plate 19 is rotatably connected between the guide seat 23 and the threaded seat 21. Four through slots 15 are opened on the top of the fixed shell 17. The top of the four guide seats 23 passes through the four through slots 15 and is equipped with positioning pins 16. A cotton pad is also installed on the top of the fixed shell 17.

[0043] See Figures 1-6 The mounting base 8 has a slot 9 on its top, and a socket 10 is inserted into the slot 9. The top of the socket 10 is fixedly connected to the fixed housing 17. When installing the fixed housing 17, the operator can insert the socket 10 into the slot 9 to position the fixed housing 17. A locking bolt 12 extending into the socket 10 is installed on one side of the fixed housing 17. The socket 10 is compatible with the slot 9. When the locking bolt 12 is screwed into the socket 10, the socket 10 can be locked and limited, thus completing the installation of the fixed housing 17. One end of the worm gear 18 passes through the outside of the fixed housing 17 and is equipped with a handle. The worm gear 18 meshes with the worm wheel 11, allowing the operator to rotate the worm gear 18 through the handle. The rotation of the worm gear 18 will drive the worm wheel 11 to rotate. The positioning pin 16 is slidably connected to the guide rod 22 through the guide seat 23, so that when the guide seat 23 slides on the guide rod 22, it can drive the positioning pin 16 to move, so as to adjust the position of the positioning pin 16.

[0044] Specifically, a groove 5 is provided on one side of the top of the base plate 1, and a slide seat 6 is provided inside the groove 5. An electric push rod 7 is installed on one side of the base plate 1, and the output end of the electric push rod 7 is fixedly connected to the slide seat 6 through a piston rod. When the position of the electric slide table 2 needs to be adjusted, the operator can start the electric push rod 7. The operation of the electric push rod 7 can extend or retract the piston rod, thereby driving the slide seat 6 to move. The electric slide table 2 is installed on the top of the slide seat 6, and the output end of the electric slide table 2 is connected to a connecting seat 3. A high-precision probe 4 is rotatably provided on one side of the connecting seat 3. The high-precision probe 4 can be a detection probe for a gear measuring center. When the electric slide table 2 is working, it can drive the connecting seat 3 to move, thereby driving the high-precision probe 4 to move.

[0045] See Figures 1-4 The bottom shell 29 houses a motor 26, and the output end of the motor 26 is connected to a drive gear 30. The bottom shell 29 is also connected to a movable shaft 27 via a bearing, and a driven gear 28 is installed on the outer wall of the movable shaft 27. The top end of the movable shaft 27 passes through the bottom shell 29 and is fixedly connected to the turntable 13. The drive gear 30 meshes with the driven gear 28. The diameter of the drive gear 30 is smaller than the diameter of the driven gear 28. When the gear to be tested needs to be rotated, the motor 26 can be started. When the motor 26 is working, it can drive the drive gear 30 to rotate. The rotation of the drive gear 30 will drive the driven gear 28 to rotate, which in turn will drive the movable shaft 27 to rotate, which will then drive the turntable 13 to rotate, and drive the fixed shell 17 to rotate, and drive the gear to rotate. If the gear to be tested does not need to rotate, the turntable 13 will not rotate if the motor 26 is not started.

[0046] Example 2:

[0047] Based on the above embodiment 1, in order to avoid the positioning pin 16 from directly contacting the gear, the following structure will be set.

[0048] Specifically, a protective sleeve 14 is installed on the outer wall of the positioning post 16. The protective sleeve 14 is made of silicone material. The protective sleeve 14 is designed to prevent the positioning post 16 from directly contacting the gear, thereby improving the protection effect on the gear.

[0049] Example 3:

[0050] Based on the above embodiment 1, in order to prevent the threaded seat 21 from rotating, it is necessary to guide the threaded seat 21, so the following structure will be set.

[0051] See Figure 2 and Figure 7A limiting groove 25 is provided on one side of the interior of the fixed shell 17, and a limiting plate 24 is provided inside the limiting groove 25. One side of the limiting plate 24 is fixedly connected to the threaded seat 21. When the threaded seat 21 moves, it will drive the limiting plate 24 to slide inside the limiting groove 25. The limiting plate 24 can guide the threaded seat 21, thereby improving the stability of the threaded seat 21 when it moves.

[0052] The working principle of this utility model is as follows: First, when using it, the operator turns on the power supply, then puts the gear to be tested and with the hole on the outside of the positioning post 16, then rotates the worm 18 by turning the handle. The rotation of the worm 18 will drive the worm wheel 11 to rotate, and then drive the threaded shaft 20 to rotate. When the threaded shaft 20 rotates, it will drive the threaded seat 21 to move. The threaded seat 21 will drive the pull plate 19 to rotate. The pull plate 19 will pull the guide seat 23 to move, and then drive the positioning post 16 to move outward. When the four positioning posts 16 move at the same time and the protective sleeve 14 is tightly attached to the inner wall of the gear hole, the handle is no longer rotated. At this time, the four positioning posts 16 can position the gear to ensure that the gear is in the middle position.

[0053] Next, the electric push rod 7 is activated, causing the piston rod to extend and thus move the slide 6, which in turn moves the electric slide 2 and the high-precision probe 4 laterally. After adjusting to the appropriate position, the electric push rod 7 is turned off, and then the electric slide 2 is activated, causing the connecting seat 3 to move down and then the high-precision probe 4 to move down. When the high-precision probe 4 moves down to fit the surface of the gear to be tested, the gear can be tested through the high-precision probe 4.

[0054] The protective sleeve 14 is made of silicone material to prevent the positioning post 16 from directly contacting the gear, thereby improving the protection effect on the gear. The movable positioning post 16 can be used to position gears with different inner diameters, improving applicability.

[0055] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A gear precision detection device comprising a base plate (1), characterized in that: The top of the bottom plate (1) is provided with a bottom shell (29), and the top of the bottom shell (29) is rotatably connected with a rotating table (13) through a bearing, the top of the rotating table (13) is provided with a mounting seat (8), and the top of the mounting seat (8) is detachably provided with a fixed shell (17), one side of the inside of the fixed shell (17) is connected with a worm (18) through a bearing, the inside of the fixed shell (17) is connected with a threaded shaft (20) through a bearing, the outer wall of the threaded shaft (20) is sleeved with a threaded seat (21), the outer wall of the threaded shaft (20) is provided below with a worm wheel (11), four guide rods (22) are fixed in the inside of the fixed shell (17), the outer wall of the guide rod (22) is sleeved with a guide seat (23), the guide seat (23) and the threaded seat (21) are rotatably connected with a pull plate (19), four through grooves (15) are formed in the top of the fixed shell (17), the top of the four guide seats (23) penetrates through the four through grooves (15) and is provided with a positioning column (16).

2. The gear precision detection device according to claim 1, characterized in that: The top of the bottom plate (1) is provided with a bottom shell (29), and the top of the bottom shell (29) is rotatably connected with a rotating table (13) through a bearing, the top of the rotating table (13) is provided with a mounting seat (8), and the top of the mounting seat (8) is detachably provided with a fixed shell (17), one side of the inside of the fixed shell (17) is connected with a worm (18) through a bearing, the inside of the fixed shell (17) is connected with a threaded shaft (20) through a bearing, the outer wall of the threaded shaft (20) is sleeved with a threaded seat (21), the outer wall of the threaded shaft (20) is provided below with a worm wheel (11), four guide rods (22) are fixed in the inside of the fixed shell (17), the outer wall of the guide rod (22) is sleeved with a guide seat (23), the guide seat (23) and the threaded seat (21) are rotatably connected with a pull plate (19), four through grooves (15) are formed in the top of the fixed shell (17), the top of the four guide seats (23) penetrates through the four through grooves (15) and is provided with a positioning column (16).

3. The gear precision detection device according to claim 2, characterized in that: The top of the bottom plate (1) is provided with a bottom shell (29), and the top of the bottom plate (1) is rotatably connected with a rotating table (13) through a bearing, the top of the rotating table (13) is provided with a mounting seat (8), and the top of the mounting seat (8) is detachably provided with a fixed shell (17), one side of the inside of the fixed shell (17) is connected with a worm (18) through a bearing, the inside of the fixed shell (17) is connected with a threaded shaft (20) through a bearing, the outer wall of the threaded shaft (20) is sleeved with a threaded seat (21), the outer wall of the threaded shaft (20) is provided below with a worm wheel (11), four guide rods (22) are fixed in the inside of the fixed shell (17), the outer wall of the guide rod (22) is sleeved with a guide seat (23), the guide seat (23) and the threaded seat (21) are rotatably connected with a pull plate (19), four through grooves (15) are formed in the top of the fixed shell (17), the top of the four guide seats (23) penetrates through the four through grooves (15) and is provided with a positioning column (16).

4. The gear precision detection device of claim 1, wherein: The outer wall of the positioning column (16) is provided with a protective sleeve (14) made of silica gel material.

5. The gear precision detection device of claim 1, wherein: The top of the mounting seat (8) is provided with a slot (9), the inside of the slot (9) is provided with a socket (10), and the top of the socket (10) is fixedly connected with the fixed shell (17).

6. A gear precision detection device according to claim 5, characterized in that: One end of the worm (18) penetrates to the outside of the fixed shell (17) and is provided with a handle, and the worm (18) is engaged with the worm wheel (11).

7. The gear precision detection device of claim 1, wherein: One side of the inside of the fixed shell (17) is provided with a limiting groove (25), and the inside of the limiting groove (25) is provided with a limiting plate (24), one side of the limiting plate (24) is fixedly connected with the threaded seat (21).

8. The gear precision detection device of claim 1, wherein: The positioning column (16) is slidably connected with the guide rod (22) through the guide seat (23).

9. The gear precision detection device of claim 1, wherein: The inside of the bottom shell (29) is provided with a motor (26), and the output end of the motor (26) is connected with a driving gear (30), the inside of the bottom shell (29) is also connected with a movable shaft (27) through a bearing, the outer wall of the movable shaft (27) is provided with a driven gear (28), and the top end of the movable shaft (27) penetrates the bottom shell (29) and is fixedly connected with the rotating table (13).

10. The gear precision detection device of claim 1, wherein: ​

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