Gear ring machining clamping device
By combining the horizontal and vertical clamping components, the fixing operation of the gear ring is simplified, solving the problems of complex structure and unstable fixing in the existing technology, and improving the efficiency and stability of gear ring processing.
Patent Information
- Application Number
- CN202520208152.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Existing gear ring clamping devices have complex structures and are cumbersome to operate. They can only clamp and fix the gear ring to the side, which makes the gear ring easy to move during processing and increases the risk of damage.
The design employs a combination of lateral and longitudinal clamping components. The lateral clamping component uses a cylinder to drive a rubber sleeve to fix the outer or inner wall of the gear ring, while the longitudinal clamping component uses a threaded rod and a rotating handle to fix the upper end face of the gear ring, simplifying operation and increasing stability.
This allows for easy fixing of the gear ring, reduces the risk of movement during processing, and improves processing efficiency and product integrity.
Smart Images

Figure CN223762289U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gear ring clamping technology, and in particular to a gear ring processing clamping device. Background Technology
[0002] A gear ring is a machine component used to transmit and modify rotational motion and torque, and is widely used in various equipment. In the engine field, the gear ring is heated and then fitted onto the outer edge of the flywheel, and after cooling, it is fastened to mesh with the starter gear, driving the crankshaft to rotate and start the engine. Gear rings are made of materials such as medium carbon steel, which have good wear resistance and hardness. Their manufacturing process includes blanking, machining, gear hobbing, chamfering, deburring, cleaning and punching, and induction hardening to ensure the gear ring's precision and performance. During the machining process, a clamping device is required to hold the gear ring in place.
[0003] The existing patent application CN202321248430.6 proposes a clamping device for gear ring production. Although it can clamp and fix the external and internal gear rings by setting a rotatable rubber pad, it requires pulling a limiting plate. The limiting plate drives the sliding rod to slide out of the sleeve, and at the same time, it drives the pressure plate to squeeze the spring, so that the limiting block is pulled out from the limiting hole, thereby releasing the fixing of the rubber pad. Only then can the rubber pad be rotated. This structure is relatively complex, and the operation is also relatively complex, which reduces the efficiency of clamping and fixing the gear ring, and thus reduces the efficiency of gear ring processing. In addition, it only clamps and fixes the side of the gear ring, but the upper end face of the gear ring is not clamped and fixed. Therefore, the gear ring is prone to moving upward under force, which can easily lead to damage to the gear ring during processing. Therefore, it needs to be improved. Utility Model Content
[0004] The main objective of this invention is to provide a gear ring machining clamping device that can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A gear ring machining clamping device includes a gear ring placement platform. Three transverse clamping assemblies are mounted on the gear ring placement platform. Each transverse clamping assembly consists of a cylinder, a mounting bracket, a clamping rod, and a rubber sleeve. The mounting bracket is fixedly mounted on one end of the piston rod of the cylinder. The clamping rod is fixedly mounted on the upper end of the mounting bracket. The rubber sleeve is fitted onto the clamping rod. A longitudinal clamping assembly is mounted on the clamping rod and above the gear ring placement platform. The longitudinal clamping assembly consists of a fixed pressure plate, a threaded rod, and a rotating handle. The threaded rod is fixedly mounted on the lower end of the fixed pressure plate, and the rotating handle is fixedly mounted on the upper end of the fixed pressure plate.
[0007] Preferably, the gear ring placement platform consists of a worktable, a support mounting plate, and a mounting base plate. There are three support mounting plates arranged in a ring at the lower end of the worktable, and there are three mounting base plates installed at the lower ends of the three support mounting plates respectively. The support mounting plates are fixedly connected to the worktable and the mounting base plates.
[0008] Preferably, the worktable surface of the gear ring placement platform is provided with three guide rail grooves, which run through the upper and lower parts of the worktable surface.
[0009] Preferably, the support mounting plate on the gear ring placement platform has a mounting through hole that penetrates both the inside and outside of the support mounting plate.
[0010] Preferably, the cylinder on the transverse clamping assembly is fixedly installed on the outer end of the support mounting plate, the piston rod of the cylinder passes through the mounting through hole, the mounting bracket is located on the inner side of the support mounting plate, the clamping rod is movably installed in the guide rail groove, the rubber sleeve is located above the worktable surface, and the upper end of the clamping rod is provided with a threaded hole.
[0011] Preferably, the threaded rod on the longitudinal clamping assembly is installed in a threaded hole at the upper end of the clamping rod, and the fixed pressure plate and the rotating handle are both located above the clamping rod.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] By setting a transverse clamping component, both the outer and inner gear rings can be fixed by the transverse clamping component. At the same time, the structure is relatively simple and does not require complicated operation, thus making it highly practical. By setting a longitudinal clamping component on the transverse clamping component, the longitudinal clamping component can press against the upper end surface of the gear ring, thereby further fixing the gear ring and preventing it from accidentally moving upward under force during processing, ultimately reducing the probability of damage to the gear ring during processing. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the gear ring placement platform of this utility model;
[0016] Figure 3 This is a schematic diagram of the structure of the transverse clamping assembly of this utility model;
[0017] Figure 4 This is a schematic diagram of the longitudinal clamping assembly of this utility model.
[0018] In the diagram: 1. Gear ring placement platform; 2. Lateral clamping assembly; 3. Longitudinal clamping assembly; 4. Worktable surface; 5. Support mounting plate; 6. Mounting base plate; 7. Guide rail groove; 8. Mounting through hole; 9. Cylinder; 10. Mounting bracket; 11. Clamping rod; 12. Rubber sleeve; 13. Threaded hole; 14. Fixed pressure plate; 15. Threaded rod; 16. Rotary handle. Detailed Implementation
[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a gear ring machining clamping device includes a gear ring placement table 1. Three transverse clamping assemblies 2 are mounted on the gear ring placement table 1. Each transverse clamping assembly 2 consists of a cylinder 9, a mounting bracket 10, a clamping rod 11, and a rubber sleeve 12. The mounting bracket 10 is fixedly mounted on one end of the piston rod of the cylinder 9. The clamping rod 11 is fixedly mounted on the upper end of the mounting bracket 10. The rubber sleeve 12 is fitted onto the clamping rod 11. A longitudinal clamping assembly 3 is mounted on the clamping rod 11 and above the gear ring placement table 1. The longitudinal clamping assembly 3 consists of a fixed pressure plate 14, a threaded rod 15, and a rotating handle 16. The threaded rod 15 is fixedly mounted on the lower end of the fixed pressure plate 14, and the rotating handle 16 is fixedly mounted on the upper end of the fixed pressure plate 14. When machining an internal gear ring, the device can clamp the internal gear ring... The inner gear ring is placed on the upper end of the gear ring placement platform 1, with the inner gear ring positioned between the three clamping rods 11 on the three transverse clamping components 2. Then, the cylinder 9 is activated, causing the rubber sleeve 12 to contact the outer wall of the inner gear ring. Next, the longitudinal clamping component 3 is rotated, causing the fixing plate 14 to press against the upper end of the inner gear ring, thus fixing the inner gear ring. When processing the outer gear ring, the outer gear ring can be placed on the upper end of the gear ring placement platform 1, with the outer gear ring placed on the outside of the three clamping rods 11 on the three transverse clamping components 2. Then, the cylinder 9 is activated, causing the rubber sleeve 12 to contact the inner wall of the outer gear ring. Next, the longitudinal clamping component 3 is rotated, causing the fixing plate 14 to press against the upper end of the outer gear ring, thus fixing the outer gear ring.
[0021] Finally, by setting the transverse clamping component 2, both the outer and inner gear rings can be fixed by the transverse clamping component 2. At the same time, the structure is relatively simple and does not require complicated operation, thus having good practicality. By setting the longitudinal clamping component 3 on the transverse clamping component 2, the longitudinal clamping component 3 can press on the upper end surface of the gear ring, thereby further fixing the gear ring and preventing the gear ring from accidentally moving upward under force during processing, thus reducing the probability of damage to the gear ring during processing.
[0022] Specifically, the gear ring placement table 1 consists of a worktable surface 4, a support mounting plate 5, and a mounting base plate 6. There are three support mounting plates 5 arranged in a ring at the lower end of the worktable surface 4, and three mounting base plates 6 are installed at the lower ends of the three support mounting plates 5 respectively. The support mounting plates 5 are fixedly connected to the worktable surface 4 and the mounting base plates 6. The worktable surface 4 on the gear ring placement table 1 has three guide rail grooves 7 that pass through the worktable surface 4 vertically. The support mounting plates 5 on the gear ring placement table 1 have mounting through holes 8 that pass through the support mounting plates 5 inside and out, allowing the gear ring to be processed to be placed on the upper end of the worktable surface 4.
[0023] Specifically, the cylinder 9 on the transverse clamping assembly 2 is fixedly installed on the outer end of the support mounting plate 5. The piston rod of the cylinder 9 passes through the mounting through hole 8. The mounting bracket 10 is located on the inner side of the support mounting plate 5. The clamping rod 11 is movably installed in the guide rail groove 7. The rubber sleeve 12 is located above the worktable surface 4. The upper end of the clamping rod 11 has a threaded hole 13. The clamping rod 11 can slide in the guide rail groove 7. When fixing the internal gear ring, the piston rod of the cylinder 9 will push the clamping rod 11 and the rubber sleeve 12 inward through the mounting bracket 10 until the rubber sleeve 12 contacts the outer wall of the internal gear ring. When fixing the external gear ring, the piston rod of the cylinder 9 will pull the clamping rod 11 and the rubber sleeve 12 outward through the mounting bracket 10 until the rubber sleeve 12 contacts the inner wall of the external gear ring.
[0024] Specifically, the threaded rod 15 on the longitudinal clamping assembly 3 is installed in the threaded hole 13 at the upper end of the clamping rod 11. The fixed pressure plate 14 and the rotating handle 16 are both located above the clamping rod 11. The diameter of the fixed pressure plate 14 has strict requirements to avoid affecting the machining of the gear ring when the fixed pressure plate 14 presses on the upper end of the gear ring. When it is necessary to fix the gear ring, simply rotate the fixed pressure plate 14 and the threaded rod 15 by rotating the rotating handle 16, so that the threaded rod 15 moves downward in the threaded hole 13 until the fixed pressure plate 14 presses on the upper end of the gear ring.
[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A gear ring machining clamping device comprising a gear ring placing table (1), characterized in that: The gear ring placement platform (1) is provided with three transverse clamping assemblies (2), which are composed of a pneumatic cylinder (9), a mounting bracket (10), a clamping rod (11) and a rubber sleeve (12), the mounting bracket (10) is fixedly installed at one end of the piston rod of the pneumatic cylinder (9), the clamping rod (11) is fixedly installed at the upper end of the mounting bracket (10), the rubber sleeve (12) is sleeved on the clamping rod (11), a longitudinal clamping assembly (3) is installed on the clamping rod (11) and above the gear ring placement platform (1), the longitudinal clamping assembly (3) is composed of a fixed pressing plate (14), a threaded rod (15) and a rotating handle (16), the threaded rod (15) is fixedly installed at the lower end of the fixed pressing plate (14), and the rotating handle (16) is fixedly installed at the upper end of the fixed pressing plate (14).
2. The holder device for machining a gear ring according to claim 1, characterized in that: The gear ring placement platform (1) is composed of a workbench surface (4), three support mounting plates (5) and a mounting bottom plate (6), the three support mounting plates (5) are annularly distributed at the lower end of the workbench surface (4), and the mounting bottom plate (6) is installed at the lower end of each of the three support mounting plates (5), and the support mounting plates (5) are fixedly connected with the workbench surface (4) and the mounting bottom plate (6).
3. The holder device for machining a toothed ring according to claim 2, characterized in that: Three guide groove (7) are formed in the workbench surface (4) of the gear ring placement platform (1), and the guide groove (7) penetrates the workbench surface (4) from top to bottom.
4. The holder device for machining a toothed ring according to claim 3, characterized in that: An installation through hole (8) is formed in the support mounting plate (5) of the gear ring placement platform (1), and the installation through hole (8) penetrates the support mounting plate (5) from inside to outside.
5. The holder device for machining a toothed ring according to claim 4, characterized in that: The pneumatic cylinder (9) of the transverse clamping assembly (2) is fixedly installed at the outer end of the support mounting plate (5), the piston rod of the pneumatic cylinder (9) penetrates the installation through hole (8), the mounting bracket (10) is located on the inner side of the support mounting plate (5), the clamping rod (11) is movably installed in the guide groove (7), the rubber sleeve (12) is located above the workbench surface (4), and a threaded hole (13) is formed in the upper end of the clamping rod (11).
6. The holder device for machining a toothed ring according to claim 5, characterized in that: The threaded rod (15) of the longitudinal clamping assembly (3) is installed in the threaded hole (13) formed in the upper end of the clamping rod (11), and the fixed pressing plate (14) and the rotating handle (16) are located above the clamping rod (11).
Citation Information
Patent Citations
Clamping device for gear ring production
CN219853373U