Clamp for ring piece machining

Abstract

The utility model relates to the technical field of ring piece machining, and discloses a clamp for ring piece machining, which comprises a shell, a spring seat is fixedly connected in the shell, a volute spiral spring is arranged in the spring seat, one end of the volute spiral spring is fixedly connected with the spring seat, the other end of the volute spiral spring is fixedly connected with a first connecting shaft, and the first connecting shaft is fixedly connected with a second connecting shaft. And the first connecting shaft is rotationally connected with the spring seat, a first gear is fixedly connected to the upper end of the first connecting shaft, the first gear is meshed with a second gear, and a second connecting shaft is fixedly connected to the interior of the second gear. According to the utility model, the plurality of convex blocks can quickly and stably push the rubber blocks on the clamping blocks to be tightly attached to the surface of the ring piece under the driving of the elastic potential energy of the volute spiral spring, so that the simultaneous and uniform clamping of multiple points of the ring piece is realized, the vibration and displacement caused by non-uniform clamping are effectively reduced, and the processing precision and the surface quality of the ring piece are obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ring part processing, in particular to a fixture for ring part processing. Background Art

[0002] A ring part processing fixture is a tool used to fix and position ring-shaped workpieces for various processing operations. The design and application of such fixtures are of great significance for improving processing accuracy, ensuring workpiece quality, and enhancing production efficiency.

[0003] A welding fixture for circular ring workpieces with the authorization announcement number of CN215747279U. The utility model discloses a welding fixture for circular ring workpieces, which relates to the technical field of clamping devices. The key points of its technical solution are: including a base, a first clamping body, a second clamping body, and a pushing component. A circular positioning groove is arranged on the base. The first clamping body and the second clamping body are relatively arranged on both sides of the circular positioning groove. The first clamping body is fixedly connected to the base. The second clamping body slides towards the first clamping body and is connected to the base. The pushing component is fixedly connected to the base, and the output end of the pushing component is in transmission connection with the second clamping body. The utility model realizes the rapid clamping of workpieces, effectively improves the working efficiency of workpiece clamping, and at the same time has the advantages of stable clamping and not easy displacement of workpieces.

[0004] However, traditional fixtures mostly use single-point or a few points for clamping, which easily causes vibration and displacement of the ring part during processing due to uneven force, thus affecting processing accuracy and surface quality. At the same time, the installation and disassembly process of traditional fixtures is complex, requiring a large amount of time and manpower, which is not conducive to the rapid adjustment and flexible response of the production line. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose a fixture for ring part processing.

[0006] To achieve the above object, the utility model adopts the following technical scheme: A fixture for ring processing, comprising a housing, wherein a spring seat is fixedly connected inside the housing, a volute spring is arranged inside the spring seat, one end of the volute spring is fixedly connected with the spring seat, the other end of the volute spring is fixedly connected with a first connecting shaft, the first connecting shaft is rotationally connected with the spring seat, a first gear is fixedly connected to the upper end of the first connecting shaft, the first gear meshes with a second gear, a second connecting shaft is fixedly connected inside the second gear, a conical seat is fixedly connected to the upper end of the housing, the conical seat is rotationally connected with the second connecting shaft, a convex block is fixedly connected to the second connecting shaft, a guiding groove is arranged on the conical seat, a clamping block is slidably connected to the guiding groove, a return spring is arranged inside the guiding groove, one end of the return spring is fixedly connected with the conical seat, and the other end of the return spring is fixedly connected with the clamping block.

[0007] As a further description of the above technical scheme: A plurality of connecting blocks are fixedly connected to the housing, and fixing holes are arranged on the connecting blocks.

[0008] As a further description of the above technical scheme: A rubber block is arranged on the clamping block, the clamping block is arc-shaped, and the clamping block is arranged in a fitting manner with the convex block.

[0009] As a further description of the above technical scheme: The second gear is arranged inside the housing, there are multiple groups of the second gears, and the second gears are evenly arranged outside the first gear.

[0010] As a further description of the above technical scheme: There are multiple second connecting shafts, and a knob is fixedly connected to one of the second connecting shafts.

[0011] As a further description of the above technical scheme: The convex block is arranged on the upper end of the conical seat.

[0012] As a further description of the above technical scheme: The radius of the first gear is larger than the radius of the second gear.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, driven by the elastic potential energy of the volute spring, multiple convex blocks can quickly and stably push the rubber block on the clamping block to closely adhere to the surface of the ring, realizing multi-point simultaneous and uniform clamping of the ring, effectively reducing the vibration and displacement caused by uneven clamping, and thus significantly improving the processing accuracy and surface quality of the ring.

[0015] 2. In the utility model, the fixing holes on the connecting blocks enable the fixture to be connected and fixed to the workbench or other processing equipment, and rapid installation and disassembly can be achieved through standard parts such as bolts, facilitating the maintenance and replacement of the fixture. Brief Description of the Drawings

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a fixture for ring workpiece processing proposed by the present utility model;

[0017] Figure 2 It is an exploded view of the overall structure of a fixture for ring workpiece processing proposed by the present utility model;

[0018] Figure 3 It is an exploded view of the partial structure of a fixture for ring workpiece processing proposed by the present utility model Figure 1 ;

[0019] Figure 4 It is an exploded view of the partial structure of a fixture for ring workpiece processing proposed by the present utility model Figure 2 .

[0020] Legend Explanation:

[0021] 1. Outer shell; 2. Frustum base; 3. First connecting shaft; 4. First gear; 5. Spring seat; 6. Volute spring; 7. Second gear; 8. Second connecting shaft; 9. Bump; 10. Guide groove; 11. Clamping block; 12. Rubber block; 13. Knob; 14. Return spring; 15. Connecting block; 16. Fixing hole. Detailed Description of the Preferred Embodiment

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment 1

[0024] Refer to Figures 1 - 4As shown in the figure, a fixture for ring machining includes a housing 1. Inside the housing 1, a spring seat 5 is fixedly connected. Inside the spring seat 5, a volute spring 6 is provided. One end of the volute spring 6 is fixedly connected to the spring seat 5, and the other end of the volute spring 6 is fixedly connected to a first connecting shaft 3. The first connecting shaft 3 is rotatably connected to the spring seat 5. At the upper end of the first connecting shaft 3, a first gear 4 is fixedly connected. The first gear 4 meshes with a second gear 7. Inside the second gear 7, a second connecting shaft 8 is fixedly connected. At the upper end of the housing 1, a conical seat 2 is fixedly connected. The conical seat 2 is rotatably connected to the second connecting shaft 8. On the second connecting shaft 8, a convex block 9 is fixedly connected. On the conical seat 2, a guide groove 10 is provided. On the guide groove 10, a clamping block 11 is slidably connected. Inside the guide groove 10, a return spring 14 is provided. One end of the return spring 14 is fixedly connected to the conical seat 2, and the other end of the return spring 14 is fixedly connected to the clamping block 11. Driven by the elastic potential energy of the volute spring 6, multiple convex blocks 9 can quickly and stably push the rubber block 12 on the clamping block 11 against the surface of the ring, realizing multi-point simultaneous and uniform clamping of the ring, effectively reducing the vibration and displacement caused by uneven clamping, and thus significantly improving the machining accuracy and surface quality of the ring.

[0025] A rubber block 12 is provided on the clamping block 11. The clamping block 11 is arc-shaped and is in a fitting setting with the convex block 9. The second gear 7 is arranged inside the housing 1. There are multiple groups of the second gears 7, and the second gears 7 are evenly arranged outside the first gear 4. There are multiple second connecting shafts 8. A knob 13 is fixedly connected to one of the second connecting shafts 8. The convex block 9 is arranged at the upper end of the conical seat 2. The radius of the first gear 4 is larger than the radius of the second gear 7. The larger the radius of 4, the more second gears 7 can be meshed, which means there can be more points to fix the ring.

[0026] Embodiment 2

[0027] On the basis of Embodiment 1, a plurality of connecting blocks 15 are fixedly connected to the housing 1. Fixing holes 16 are provided on the connecting blocks 15, enabling the fixture to be connected and fixed to a workbench or other processing equipment. Quick installation and disassembly can be achieved through standard parts such as bolts, facilitating the maintenance and replacement of the fixture.

[0028] Working principle: First, the operator rotates the knob 13, and the knob 13 drives the second connecting shaft 8 to rotate. The second connecting shaft 8 drives the second gear 7 to rotate. The second gear 7 drives the first gear 4 to rotate. The rotation of the first gear 4 drives the first connecting shaft 3 to rotate. The rotation of the first connecting shaft 3 causes the scroll spring 6 to be in a stretched state. At the same time, the rotation of the first gear 4 drives other second gears 7 to rotate, thereby causing multiple second connecting shafts 8 to rotate simultaneously. The multiple second connecting shafts 8 drive the bumps 9 thereon to rotate and disengage from the clamping blocks 11. Under the action of the return spring 14 that was originally in a stretched state, the clamping blocks 11 are pulled outwards. Then, the ring-shaped part is placed at the middle position of the frustum base 2. Under the elastic potential energy of the scroll spring 6, the first connecting shaft 3 is driven to rotate in the reverse direction, and then multiple bumps 9 are driven to rotate in the reverse direction, pushing the clamping blocks 11 to make the rubber blocks 12 closely adhere to the ring-shaped part. Thus, multiple points of the ring-shaped part are fixed, making the clamping and fixing effect better. Finally, the fixing holes 16 on the connecting block 15 can fix this fixture to the workbench through fixing parts such as bolts, improving its stability.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A fixture for machining a ring part, comprising a housing (1), characterized in that: Inside the said housing (1), there is a spring seat (5) fixedly connected. Inside the spring seat (5), there is a volute spring (6). One end of the volute spring (6) is fixedly connected to the spring seat (5), and the other end of the volute spring (6) is fixedly connected to a first connecting shaft (3). The first connecting shaft (3) is rotatably connected to the spring seat (5). At the upper end of the first connecting shaft (3), there is a first gear (4) fixedly connected. The first gear (4) meshes with a second gear (7). Inside the second gear (7), there is a second connecting shaft (8) fixedly connected. At the upper end of the housing (1), there is a frustum seat (2) fixedly connected. The frustum seat (2) is rotatably connected to the second connecting shaft (8). On the second connecting shaft (8), there is a convex block (9) fixedly connected. On the frustum seat (2), there is a guide groove (10). A clamping block (11) is slidably connected to the guide groove (10). Inside the guide groove (10), there is a return spring (14). One end of the return spring (14) is fixedly connected to the frustum seat (2), and the other end of the return spring (14) is fixedly connected to the clamping block (11).

2. The fixture for ring machining according to claim 1, wherein: On the said housing (1), there are multiple connecting blocks (15) fixedly connected. On the connecting blocks (15), there are fixing holes (16).

3. A fixture for machining a ring part according to claim 1, characterized in that: On the clamping block (11), there is a rubber block (12). The clamping block (11) is arc-shaped, and the clamping block (11) is in a fitting arrangement with the convex block (9).

4. A fixture for machining a ring part according to claim 1, characterized in that: The second gear (7) is arranged inside the housing (1). There are multiple groups of the second gears (7), and the second gears (7) are evenly arranged outside the first gear (4).

5. A fixture for machining a ring part according to claim 1, characterized in that: There are multiple second connecting shafts (8). On one of the second connecting shafts (8), there is a knob (13) fixedly connected.

6. The fixture for ring machining according to claim 1, characterized in that: The convex block (9) is arranged at the upper end of the frustum seat (2).

7. A fixture for machining a ring part according to claim 1, characterized in that: The radius of the first gear (4) is larger than the radius of the second gear (7).

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