Clamp for turn-over machining of easy-to-deform part

Abstract

The utility model relates to the technical field of clamps, and discloses a clamp for turn-over machining of an easily-deformed part, which comprises an A and B face combination body and an annular clamp body, the A and B face combination body is divided into a clamp turn-over body A and a clamp turn-over body B. The part is placed between the clamp turn-over body A and the clamp turn-over body B. The clamp turn-over body A, the clamp turn-over body B and the part are assembled through micro interference. And the magnitude of interference is 0.01-0.05, the clamp turn-over body A and the clamp turn-over body B are rigidly connected through threads, and the part is an annular thin-wall part. By means of micro-interference assembly and a radial expansion structure, deformation of parts is effectively prevented, and turn-over machining precision is guaranteed; meanwhile, through threaded rigid connection and universal clamping groove design, the stability and universality of the clamp are improved, the clamp is suitable for various annular thin-wall parts, and the production cost is reduced; the clamp is simple in structure and easy to operate and maintain, and operation difficulty of workers and equipment maintenance time are reduced.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically a fixture for flipping easily deformable parts. Background Technology

[0002] Currently, many parts cannot be fully machined in a single clamping operation during CNC machining and require flipping for re-machining. If the part is a thin-walled part with low rigidity and its inner contour is a closed cavity, the requirements for re-machining the contour during flipping are even greater. For example, for a ring-shaped thin-walled part, in order to minimize the tool marks from the previous process during the flipping process, the part's state must be completely consistent between the two processes. For machining that requires disassembly, especially for thin-walled, low-rigidity parts, it is impossible to keep the part's state unchanged after flipping. To reduce the degree of deformation when flipping parts, this utility model provides a fixture for flipping easily deformable parts. Utility Model Content

[0003] The purpose of this utility model is to provide a fixture for turning over easily deformable parts, which solves the technical problem that existing parts are easily deformed due to their weak rigidity when turning over, and achieves the goal of stabilizing the state of the parts and ensuring that the tool marks of the parts after turning over are minimized compared with the previous process.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fixture for turning easily deformable parts, comprising an A and B surface assembly and an annular fixture body. The A and B surface assembly is divided into a fixture turning body A and a fixture turning body B. A part is placed between the fixture turning body A and the fixture turning body B. The fixture turning body A and the fixture turning body B are assembled with the part by a micro-interference fit, with an interference fit between 0.01 and 0.05. The fixture turning body A and the fixture turning body B are rigidly connected by threads. The part is an annular thin-walled part.

[0005] It also includes a radial expansion clamping body, which has an expansion structure at its center. The radial expansion structure enables the radial fixation of the part, and the expansion amount is adjustable to ensure that the part does not deform during processing.

[0006] Preferably, the dimensions of the fixture flipping body A and fixture flipping body B are the same as the dimensions of the ring fixture body, with a tolerance between ±0.01mm and 0.05mm, and the fixture flipping body A and fixture flipping body B are coaxial with the ring fixture body. Through this design, the part remains stable during flipping processing, avoiding the deformation problem caused by traditional fixtures, improving processing accuracy and efficiency, and is suitable for the production of high-precision ring-shaped thin-walled parts.

[0007] Preferably, the dimensions of the radial expansion clamp are the same as those of the annular clamp, with a tolerance between ±0.01mm and 0.05mm, and the radial expansion clamp is coaxial with the annular clamp. Through precise dimensional matching and coaxial design, the parts are ensured to be stable in both the radial and axial directions, further optimizing the overall performance of the fixture, minimizing errors during the machining process, and significantly improving the finished product quality and production efficiency of the parts.

[0008] Preferably, a universal clamping slot is provided at the middle position of the annular clamping body. Parts that can be clamped by the combination of A and B surfaces or by the radial expansion clamping body can be placed in the universal clamping slot. The edge of the part is pressed onto the annular clamping body by a pressure plate with bolts and nuts to ensure that the part is basically in the same state after being flipped.

[0009] This utility model provides a fixture for turning easily deformable parts. It has the following advantages:

[0010] (1) This utility model effectively prevents the deformation of parts and ensures the accuracy of flipping through micro interference fit and radial expansion structure; at the same time, the stability and versatility of the fixture are improved through threaded rigid connection and universal clamping groove design, which is suitable for a variety of annular thin-walled parts and reduces production costs; the fixture has a simple structure, is easy to operate and maintain, and reduces the difficulty of operation for workers and the time required for equipment maintenance.

[0011] (2) This utility model allows for flexible switching between two types of fixtures to meet different processing needs and improves production flexibility; the fixture material can be a high-strength alloy, which is wear-resistant, corrosion-resistant, and extends service life; precise tolerance control ensures a tight fit between the fixture and the parts, reduces processing errors, and improves product quality. Attached Figure Description

[0012] Figure 1 This is a perspective view of the ring clamp of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of clamp flipping body A and clamp flipping body B of this utility model;

[0014] Figure 3 This is a detailed view of the radial expansion clamp of this utility model;

[0015] Figure 4 This is a schematic view of the clamp flipping body assembly of this utility model;

[0016] Figure 5 This is a schematic view of the specific assembly of the radial expansion clamp of this utility model.

[0017] In the diagram: Part 1, Fixture Flip-up Body A21, Fixture Flip-up Body B22, Radial Expansion Fixture Body 23, Ring Fixture Body 3, Pressure Plate 4, Bolt 5, Nut 6. Detailed Implementation

[0018] 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.

[0019] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] Example 1:

[0021] Based on the existing problem that existing parts are prone to deformation due to their weak rigidity during flipping, this utility model provides a preferred embodiment of a fixture for flipping easily deformable parts, for example... Figure 1-5 As shown: A jig for turning over easily deformable parts includes an A and B surface assembly and an annular jig body 3. The A and B surface assembly is divided into a jig turning body A21 and a jig turning body B22. A part 1 is placed between the jig turning bodies A21 and B22. The jig turning bodies A21 and B22 are assembled with the part by micro interference fit, with an interference fit between 0.01 and 0.05. The jig turning bodies A21 and B22 are rigidly connected by threads. The part 1 is an annular thin-walled part.

[0022] The dimensions of the fixture flipping bodies A21 and B22 are the same as those of the annular fixture body 3, with a tolerance between ±0.01mm and 0.05mm. Furthermore, the fixture flipping bodies A21 and B22 are coaxial with the annular fixture body 3. Through this design, the parts remain stable during flipping processing, avoiding the deformation problems caused by traditional fixtures, improving processing accuracy and efficiency, and making it suitable for the production of high-precision annular thin-walled parts.

[0023] Example 2:

[0024] Please see Figures 1-5 Furthermore, based on Embodiment 1, it is further found that: it also includes a radial expansion clamping body 23, the center of which has an expansion structure, and the radial expansion structure is used to achieve radial fixation of the part, the expansion amount is adjustable, and the part does not deform during processing;

[0025] The radial expansion fixture 23 has the same dimensions as the annular fixture 3, with a tolerance between ±0.01mm and 0.05mm. The radial expansion fixture 23 is coaxial with the annular fixture 3. Through precise dimensional matching and coaxial design, the parts are ensured to be stable in both the radial and axial directions, further optimizing the overall performance of the fixture, minimizing errors during the machining process, and significantly improving the finished product quality and production efficiency of the parts.

[0026] A universal clamping slot is provided in the middle of the ring clamping body 3. Part 1 that can be clamped by the combination of A and B surfaces or by the radial expansion clamping body 23 can be placed in the universal clamping slot. The edge of the part 1 is pressed onto the ring clamping body 3 by the use of pressure plate 4 and bolts 5 and nuts 6 to ensure that the part is basically in the same state after being flipped.

[0027] 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 fixture for flipping easily deformable parts, comprising an A and B surface assembly and a ring-shaped fixture body (3), characterized in that: The A and B surface assembly is divided into a fixture flip body A (21) and a fixture flip body B (22). A part (1) is placed between the fixture flip body A (21) and the fixture flip body B (22). The fixture flip body A (21), the fixture flip body B (22) and the part are assembled by micro interference, with an interference amount between 0.01 and 0.

05. The fixture flip body A (21) and the fixture flip body B (22) are rigidly connected by threads. The part (1) is an annular thin-walled part. It also includes a radial expansion clamping body (23), which has an expansion structure at its center. The radial expansion structure enables the radial fixation of the part, and the expansion amount is adjustable to ensure that the part does not deform during processing.

2. The fixture for flipping easily deformable parts according to claim 1, characterized in that: The dimensions of the fixture flipping body A (21) and fixture flipping body B (22) are the same as the dimensions of the ring fixture body (3), with a tolerance between ±0.01mm and 0.05mm, and the fixture flipping body A (21) and fixture flipping body B (22) are coaxial with the ring fixture body (3).

3. The fixture for flipping easily deformable parts according to claim 1, characterized in that: The radial expansion clamp (23) has the same dimensions as the annular clamp (3), with a tolerance between ±0.01mm and 0.05mm, and the radial expansion clamp (23) is coaxial with the annular clamp (3).

4. The fixture for flipping easily deformable parts according to claim 1, characterized in that: The annular clamping body (3) is provided with a universal clamping slot in the middle position. Parts (1) clamped by the A and B side combination or parts (1) clamped by the radial expansion clamping body (23) are placed in the universal clamping slot. The edge of the part (1) is pressed onto the annular clamping body (3) by the use of pressure plate (4) in conjunction with bolts (5) and nuts (6) to ensure that the state of the part is basically consistent after the part is flipped.

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