Clamping device for duplicate gear machining

By using a clamping device with an air-expanding shaft and an electric push column structure, the problems of unstable clamping and force control in the machining of double gears are solved, achieving stable clamping and convenient operation, and improving machining accuracy and quality.

CN223970950UActive Publication Date: 2026-03-06BEVOGEL TECH (CHANGZHOU) CO LTD
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Patent Information

Application Number
CN202520519716.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-03-06
Estimated Expiration
2035-03-24

AI Technical Summary

Technical Problem

Existing clamping devices for machining double gears lack stability and have difficulty controlling clamping force, which can easily lead to gear damage and insufficient machining accuracy.

Method used

It adopts an air-expanding shaft and electric push column structure, and achieves stable clamping of double gears through the cooperation of support ring and sliding ring. The rotation and position adjustment of the gears are realized through the coordinated work of drive motor and electric rotating shaft.

Benefits of technology

This improves the clamping stability and convenience of double gear machining, avoids gear damage and insufficient machining accuracy, and ensures machining quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a clamping device for duplicate gear machining, which relates to the technical field of duplicate gear machining and comprises an air swelling shaft, a supporting pipe is fixedly mounted at the top of the air swelling shaft, a connecting pipe is fixedly mounted on the outer side of the supporting pipe, and four lugs are fixedly mounted on the periphery of the connecting pipe. A supporting ring is fixedly mounted at the top of the connecting pipe, four electric push columns are fixedly mounted in the supporting ring, and sliding rings are fixedly mounted at the bottoms of the electric push columns. According to the clamping device for duplicate gear machining, an inflation opening in the top of a supporting pipe is inflated, so that an air swelling shaft clamps a duplicate gear, four electric push columns on the periphery of a supporting ring operate, so that a sliding ring is pushed to move downwards, a groove in the sliding ring and a protruding block on the outer side of a connecting pipe are embedded, and therefore the sliding ring moves downwards; and the four clamping blocks are pushed to move towards the periphery through operation of electric push rods in mounting grooves in the periphery of the sliding ring.
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Description

Technical Field

[0001] This utility model relates to the field of double gear processing technology, specifically a clamping device for processing double gears. Background Technology

[0002] Gear transmission devices are transmission mechanisms composed of multiple gears. Utilizing the meshing principle of gears, they convert the speed of a prime mover to the required speed and obtain the corresponding torque. Gear transmission devices are a crucial basic component of mechanical equipment, thus determining their irreplaceable role in the field of general mechanical equipment. Double gears are mainly used in machine tool reducers and spindle boxes, automotive transmissions, and other mechanical fields. With the development of technology, the advancement of multi-axis CNC machine tools, and the booming automotive industry, double gears will have significant development potential. A double gear consists of two gears connected as one unit. In a gear train (transmission), this type of double gear is called a sliding gear, and its function is to change the speed or rotational speed of the output shaft. In a gearbox, the presence of sliding gears allows for multiple speeds or rotational speeds; without sliding gears, only one speed or rotational speed is possible.

[0003] Currently, most clamping devices used in machining double gears employ an external clamping method. This method makes further machining of the double gears inconvenient after clamping. Furthermore, due to the difficulty in precisely controlling the clamping force, excessive clamping force can easily occur during the machining process, potentially damaging the double gears. In addition, this clamping method also has certain instability issues, which may lead to insufficient precision during machining, thereby affecting the quality and performance of the double gears. This can cause vertical wobbling during the machining of double gears, thus affecting the machining accuracy and quality. Utility Model Content

[0004] The purpose of this invention is to overcome the problems of insufficient stability in clamping double gears and easy damage to gears due to excessive clamping force in the existing technology, and to provide a clamping device for machining double gears.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A clamping device for machining double gears, comprising:

[0007] An air expansion shaft has a support tube fixedly installed at its top, a connecting tube fixedly installed on the outside of the support tube, four protrusions fixedly installed around the connecting tube, a support ring fixedly installed at the top of the connecting tube, the support ring being annular in shape, four electric actuators fixedly installed inside the support ring, a sliding ring fixedly installed at the bottom of the electric actuators, the sliding ring being annular in shape, a groove being formed inside the sliding ring, and mounting grooves being formed around the sliding ring, an electric actuator being fixedly installed inside the mounting grooves, and a clamping block being fixedly installed on one side of the electric actuator.

[0008] In a preferred embodiment, an air inlet is fixedly installed inside the top of the support tube, and a double gear body is slidably connected to the outside of the air expansion shaft. The air expansion shaft is a structure used to clamp the double gear body by inflating.

[0009] In a preferred embodiment, a rotating column is fixedly installed at the bottom of the air shaft, and the bottom of the rotating column is fixedly installed between the output shaft at the top of the drive motor. The drive motor is a structure used to drive the rotating column to rotate.

[0010] In a preferred embodiment, a support plate is fixedly mounted on one side of the drive motor, and an electric shaft is rotatably connected to one side of the support plate. The electric shaft is a structure used to drive the support plate to adjust its angle.

[0011] In a preferred embodiment, an electric turntable is rotatably connected to the bottom of the electric shaft, and a support block is rotatably connected to the bottom of the electric turntable, the support block being a support structure.

[0012] In a preferred embodiment, a base is fixedly installed on one side of the support block, and a placement groove is provided on the top side of the base, the placement groove being a structure for placement.

[0013] In a preferred embodiment, the base has a central groove in the middle, which is a structure for placing the drive motor.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This clamping device for machining double gears uses air to inflate the air inlet at the top of the support tube, causing the air shaft to clamp the double gears. The operation of the four electric push rods around the support ring pushes the sliding ring downwards. The sliding ring moves downwards due to the engagement of the groove inside the sliding ring and the protrusion outside the connecting tube. The operation of the electric push rod inside the mounting groove around the sliding ring pushes the four clamping blocks to move outwards, thereby clamping the top of the double gears and improving the clamping stability of the clamping device for machining double gears.

[0016] 2. This clamping device for processing double gears, through the operation of a drive motor, drives the air shaft to rotate via a rotating column, thereby rotating the clamped double gears. This improves the convenience of the clamping device. Through the operation of an electric rotating shaft, the support plate is rotated 90 degrees, and through the operation of an electric turntable, the support plate is rotated 180 degrees, thus facilitating the adjustment of the position of the double gears so that they can be clamped perpendicular to the ground or horizontally. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the air shaft in this utility model;

[0019] Figure 3 This is a schematic diagram of the connecting pipe in this utility model;

[0020] Figure 4 This is a schematic diagram of the support plate in this utility model.

[0021] 1. Air shaft; 11. Support tube; 12. Inflation port; 13. Double gear body; 14. Rotating column; 15. Drive motor; 2. Connecting tube; 21. Protrusion; 22. Support ring; 23. Electric push column; 24. Sliding ring; 25. Groove; 26. Mounting slot; 27. Electric push rod; 28. Clamping block; 3. Support plate; 31. Electric rotating shaft; 32. Electric turntable; 33. Support block; 34. Base; 35. Placement slot; 36. Center slot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Combined with appendix Figure 1-4 In this embodiment, a clamping device for machining double gears includes: an air shaft 1, a support tube 11 fixedly installed on the top of the air shaft 1, an air inlet 12 fixedly installed inside the top of the support tube 11, a double gear body 13 slidably connected to the outside of the air shaft 1, a rotating column 14 fixedly installed on the bottom of the air shaft 1, and the bottom of the rotating column 14 fixedly installed between the output shaft at the top of the drive motor 15.

[0024] Specifically, by injecting air into the top air inlet 12 of the support tube 11, the expansion process of the air shaft 1 is realized, thereby applying a clamping force to the double gear body 13 to ensure its fixation. Subsequently, when the drive motor 15 starts to operate, it drives the rotating column 14 to rotate. As the rotating column 14 rotates, the air shaft 1 connected to it will also rotate, thereby driving the double gear body 13 clamped by it to rotate together.

[0025] A connecting pipe 2 is fixedly installed on the outside of the support pipe 11. Four protrusions 21 are fixedly installed around the connecting pipe 2. A support ring 22 is fixedly installed on the top of the connecting pipe 2. The support ring 22 is annular in shape. Four electric push columns 23 are fixedly installed inside the support ring 22. A sliding ring 24 is fixedly installed at the bottom of the electric push column 23. The sliding ring 24 is annular in shape. A groove 25 is opened inside the sliding ring 24. An installation groove 26 is opened around the sliding ring 24. An electric push rod 27 is fixedly installed inside the installation groove 26. A clamping block 28 is fixedly installed on one side of the electric push rod 27.

[0026] Specifically, the movement of the electric push rods 23 around the support ring 22 enables the sliding ring 24 to move downward vertically on the outside of the connecting pipe 2. This process is ensured by the precise engagement between the protrusion 21 on the outside of the connecting pipe 2 and the groove 25 inside the sliding ring 24, thus enabling the sliding ring 24 to move downward stably. In addition, the precise movement of the electric push rod 27 pushes the clamping block 28 to expand outwards, and the clamping block 28 precisely clamps the top of the double gear body 13, ensuring the stability and accuracy of the entire operation process.

[0027] A support plate 3 is fixedly installed on one side of the drive motor 15. An electric rotating shaft 31 is rotatably connected to one side of the support plate 3. An electric turntable 32 is rotatably connected to the bottom of the electric rotating shaft 31. A support block 33 is rotatably connected to the bottom of the electric turntable 32. A base 34 is fixedly installed on one side of the support block 33. A placement groove 35 is opened on one side of the top of the base 34. A central groove 36 is opened in the middle of the base 34.

[0028] Specifically, the operation of the electric rotating shaft 31, which is connected to the support plate 3, enables the support plate 3 to be precisely adjusted in angle. At the same time, the operation of the electric turntable 32 is responsible for driving the support plate 3 to rotate in the horizontal direction. This design makes the operation more flexible and convenient. Through the coordinated work of these two parts, the double gear body 13 can be easily moved to a vertical angle position to meet specific work requirements.

[0029] Working principle: First, the double gear body 13 is placed outside the air expansion shaft 1. Air is injected into the air inlet 12 at the top of the support tube 11, causing the air expansion shaft 1 to expand and clamp the double gear body 13. The movement of the electric push rods 23 around the support ring 22 at the top of the connecting tube 2 pushes the sliding ring 24 downwards on the outside of the connecting tube 2. The engagement of the protrusion 21 on the outside of the connecting tube 2 and the groove 25 inside the sliding ring 24 allows the sliding ring 24 to move stably downwards on the outside of the connecting tube 2. The movement of the electric push rods 27 inside the mounting grooves 26 around the sliding ring 24 pushes the clamping block 28 to move outwards within the mounting grooves 26, thus clamping and fixing the top of the double gear body 13. This improves the clamping efficiency of the double gear machining process. The device ensures the stability of the double gear body 13 during clamping and limits the clamping of the double gear body 13 and the clamping block 28 from the inside, avoiding damage to the double gear body 13 due to excessive clamping force and the problem of the double gear body 13 sliding up and down during processing. The operation of the drive motor 15 on one side of the bottom of the support plate 3 drives the rotating column 14 to rotate, thereby driving the double gear body 13 clamped by the air expansion shaft 1 to rotate. The operation of the electric rotating shaft 31 drives the support plate 3 to rotate 90 degrees, and the operation of the electric turntable 32 drives the support plate 3 to rotate 180 degrees, so that the double gear body 13 is perpendicular to the ground, which facilitates the adjustment of the angle of the double gear body 13 and improves the convenience of the clamping device for processing double gears.

[0030] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A clamping device for machining a double gear, characterized in that, The utility model provides a kind of inflatable shaft (1), the top of the inflatable shaft (1) is fixedly installed with support pipe (11), the outer side of the support pipe (11) is fixedly installed with connecting pipe (2), the four around of the connecting pipe (2) are fixedly installed with four lugs (21), the top of the connecting pipe (2) is fixedly installed with support ring (22), the support ring (22) is annular, the inside of the support ring (22) is fixedly installed with four electric push columns (23), the bottom of the electric push column (23) is fixedly installed with sliding ring (24), the sliding ring (24) is annular, the inside of the sliding ring (24) is equipped with recess (25), the four around inside of the sliding ring (24) is equipped with installation groove (26), the inside of the installation groove (26) is fixedly installed with electric push rod (27), one side of the electric push rod (27) is fixedly installed with clamping block (28).

2. The dual gear machining clamping device according to claim 1, characterized in that: The top inside of the support pipe (11) is fixedly installed with inflation port (12), the outer side of the inflatable shaft (1) is slidably connected with double gear body (13).

3. The double gear machining clamping device according to claim 2, characterized in that: The bottom of the inflatable shaft (1) is fixedly installed with rotating column (14), and the bottom of the rotating column (14) is fixedly installed between the output shaft of the top of driving motor (15).

4. The double gear machining clamping device according to claim 3, characterized in that: One side of the driving motor (15) is fixedly installed with support plate (3), and one side of the support plate (3) is rotatably connected with electric rotating shaft (31).

5. The double gear machining clamping device according to claim 4, characterized in that: The bottom of the electric rotating shaft (31) is rotatably connected with electric turntable (32), and the bottom of the electric turntable (32) is rotatably connected with support block (33).

6. A double gear machining clamping device according to claim 5, characterized in that: One side of the support block (33) is fixedly installed with base (34), and the top of the base (34) is equipped with placing groove (35) on one side.

7. The double gear machining clamping device according to claim 6, characterized in that: The middle of the base (34) is equipped with center groove (36).