High-precision ridge wedge positioning chuck

Abstract

This utility model relates to the field of optical component processing technology, specifically a high-precision roof ridge wedge positioning chuck, comprising: a first clamp and a second clamp arranged opposite to each other; the first clamp includes a first connecting part and a first clamping part disposed at the front end of the first connecting part, the front end face of the first clamping part having a V-shaped bending clamping surface; the second clamp includes a second connecting part and a second clamping part disposed at the front end of the second connecting part, the front end of the second clamping part corresponding to the clamping surface, for cooperating to form a positioning space for the roof ridge product. A central groove is formed on the clamping surface, extending along the V-shaped bending line of the clamping surface. A first rotating seat is fixedly connected to the rear end of the first clamp. A second rotating seat is movably connected to the rear end of the second clamp. It can achieve a uniform radial distribution of clamping force, thereby achieving precise self-centering clamping of the roof ridge product.

Description

Technical Field

[0001] This utility model relates to the field of optical component processing technology, specifically a high-precision ridge wedge positioning chuck. Background Technology

[0002] With the rapid development of optical imaging, laser transmission, and precision detection, the application scenarios of roof prisms and wedge optical elements continue to expand, and the market's requirements for their processing accuracy, mass production efficiency, and yield are becoming increasingly stringent. Among them, the roof disc and wedge, as core optical elements, directly determine the imaging quality and transmission performance of the optical system through their roof misalignment accuracy, wedge angle tolerance, and surface shape accuracy, making their processing difficult and subject to extremely high precision control pressure. Utility Model Content

[0003] In order to solve the technical problems existing in the background art, this utility model provides a high-precision ridge wedge positioning chuck, which can achieve uniform radial distribution of clamping force, thereby realizing precise self-centering clamping of ridge products.

[0004] The technical solution adopted by this utility model to solve its technical problem is: High-precision ridge wedge positioning chuck, including: The first and second clamps are set relative to each other; The first clamp includes a first connecting part and a first clamping part disposed at the front end of the first connecting part. The front end face of the first clamping part is provided with a clamping surface that is bent in a V-shape. The second clamp includes a second connecting part and a second clamping part disposed at the front end of the second connecting part. The front end of the second clamping part corresponds to the clamping surface to cooperate in forming the positioning space of the ridge product.

[0005] Furthermore, the clamping surface has a central groove that extends along the V-shaped bend line of the clamping surface.

[0006] Furthermore, a gasket is provided on the front end face of the second clamping part.

[0007] Furthermore, a first rotating seat is fixedly connected to the rear end of the first clamp.

[0008] Furthermore, the rear end of the first clamp is provided with a first internal thread, and the front end of the first rotating seat is provided with a first threaded post that is fixedly connected to the first internal thread.

[0009] Furthermore, a second rotating seat is movably connected to the rear end of the second clamp.

[0010] Furthermore, the rear end of the second clamp is provided with a second internal thread, and the front end of the second rotating seat is provided with a second threaded post that is connected to the second internal thread for transmission.

[0011] Furthermore, both the first and second clamps are made of brass.

[0012] The beneficial effects of this utility model are: (1) The V-shaped bend at the front end of the first clamping part forms a symmetrical inclined mating structure, which generates a symmetrical contraction force while clamping axially, so that the clamping force is evenly distributed radially, realizing the self-centering of the ridge product, and the coaxiality error can be controlled within 0.005mm. It avoids the eccentric clamping problem of traditional rigid fixtures and ensures the accuracy of the edge grinding posture. Moreover, the clamping position and clamping force height are consistent, eliminating the need for frequent recalibration and adapting to the process stability requirements of mass production.

[0013] (2) By opening an intermediate groove extending along the bending line on the clamping surface with a V-shaped bend, hard contact between the corner of the ridge product and the bending line of the clamp is avoided, and positioning deviation caused by line-surface contact is prevented, thereby improving the positioning accuracy and repeatability of the ridge product.

[0014] (3) The pads provided at the front end of the second clamping part can provide elastic cushioning to prevent the ridge product from slipping during processing. And prevent hard clamps from directly scratching the surface of the ridge product.

[0015] (4) The rear end of the second clamp is connected to the second threaded post at the front end of the second rotating seat via the second internal thread, so that the second clamp not only has a clamping function, but also can finely adjust the feed along the axial direction. In conjunction with the fixed end of the first clamp, the clamping force can be controlled and it can adapt to ridge products with different thickness tolerances.

[0016] (5) The rear end of the first fixture is fixedly connected to the first threaded post at the front end of the first rotating seat via the first internal thread. This enables quick replacement, ensures high consistency in repeated clamping, and significantly reduces auxiliary time between processes. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the first fixture; Figure 3 This is a schematic diagram of the second clamp; Figure 4 This is a structural diagram of the roof ridge product.

[0019] In the picture: 1. First clamp, 2. Second clamp, 3. First rotating seat, 4. Second rotating seat, 5. Ridge product; 101. First connecting part; 102. First clamping part; 103. Clamping surface; 104. Intermediate groove; 105. First internal thread; 201. Second connecting part; 202. Second clamping part; 203. Washer; 204. Second internal thread; 301. First threaded post; 401. Second threaded post; 501. Roof ridge surface; 502. Plane surface. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 4 As shown, the ridge product 5 in the prior art includes a ridge surface 501 and a plane 502.

[0022] like Figure 1 As shown, the high-precision ridge wedge positioning chuck has a specific structure including a first clamp 1 and a second clamp 2 arranged opposite to each other. The ridge product 5 is clamped between the first clamp 1 and the second clamp 2.

[0023] like Figure 2 As shown, the specific structure of the first clamp 1 includes a first connecting part 101 and a first clamping part 102 disposed at the front end of the first connecting part 101. The front end face of the first clamping part 102 has a clamping surface 103 with a V-shaped bend. The clamping surface 103 is adapted to the ridge surface 501 of the ridge product 5. The V-shaped bend of the clamping surface 103 can form a symmetrical inclined surface mating structure, generating a symmetrical contraction force while axially clamping the ridge product 5, so that the clamping force is evenly distributed radially, realizing the self-centering of the ridge product 5. This avoids the eccentric clamping problem of traditional rigid clamps and ensures the accuracy of the edge grinding posture. Moreover, the clamping position and clamping force height are consistent, eliminating the need for frequent recalibration and meeting the process stability requirements of mass production.

[0024] The clamping surface 103 has a central groove 104 that extends along the V-shaped bend line of the clamping surface 103. The width of the central groove 104 is 0.1-0.5mm. The central groove 104 can prevent the sharp edges of the ridge product 5 from making hard contact with the bend line of the clamping surface 103, preventing positioning deviation caused by line-surface contact, thereby improving the positioning accuracy and repeatability of the ridge product 5.

[0025] For ease of operation, the first connecting part 101 is provided with a wrench slot, which makes it easy to quickly tighten and loosen the first clamp 1 with a wrench.

[0026] The rear end of the first clamp 1 is fixedly connected to a first rotating seat 3. The first rotating seat 3 is connected to a driving device, enabling the first clamp 1 to rotate actively. In a specific embodiment, the rear end of the first clamp 1 has a first internal thread 105, and the front end of the first rotating seat 3 has a first threaded post 301 fixedly connected to the first internal thread 105. The rear end of the first clamp 1 is fixedly connected to the first threaded post 301 at the front end of the first rotating seat 3 via the first internal thread 105. This enables rapid replacement, ensures high consistency in repeated clamping, and significantly reduces auxiliary time between processes.

[0027] like Figure 3 As shown, the specific structure of the second clamp 2 includes a second connecting portion 201 and a second clamping portion 202 disposed at the front end of the second connecting portion 201. The front end face of the second clamping portion 202 is adapted to the plane 502 of the ridge product 5. The front end of the second clamping portion 202 corresponds to the clamping surface 103 to cooperate in forming a positioning space for the ridge product 5. A gasket 203 is also provided on the front end face of the second clamping portion 202. The gasket 203 can provide elastic cushioning to prevent the ridge product 5 from slipping during processing and to prevent the hard clamp from directly scratching the surface of the ridge product 5.

[0028] The rear end of the second clamp 2 is movably connected to a second rotating seat 4. The second rotating seat 4 can rotate with the second clamp 2. The rear end of the second clamp 2 has a second internal thread 204, and the front end of the second rotating seat 4 has a second threaded post 401 that is drivenly connected to the second internal thread 204. The rear end of the second clamp 2 is drivenly connected to the second threaded post 401 at the front end of the second rotating seat 4 through the second internal thread 204, so that the second clamp 2 not only has a clamping function, but also can finely adjust the feed along the axial direction. In conjunction with the fixed end of the first clamp 1, the clamping force can be controlled, and it can adapt to ridge products with different thickness tolerances. It should be further noted that the threaded connection between the second clamp 2 and the second rotating seat 4 enables the second clamp 2 to have a mechanical self-locking function, which makes it difficult to loosen after clamping, the locking torque is stable, the assembly and disassembly are quick, the chuck replacement does not require complicated adjustment, and the repeatability is good.

[0029] The first fixture 1 and the second fixture 2 are made of brass. Brass has good wear resistance, shock absorption, and machinability. Shock absorption helps absorb high-frequency vibrations during machining, further improving the surface finish. At the same time, brass is not prone to rust, reducing positioning errors caused by corrosion and extending the service life of the fixtures.

[0030] Specific usage instructions: The first clamp 1 is fixedly mounted on the first rotating seat 3. The second clamp 2 is threaded onto the second rotating seat 4.

[0031] The ridge surface 501 of the ridge product 5 is attached to the clamping surface 103 of the first clamp 1. The second clamp 2 is screwed on so that the gasket 203 at its front end abuts against the plane 502 of the ridge product 5.

[0032] The first rotating seat 3 rotates actively, causing the ridge product 5 and the second clamp 2, which is in contact with it, to rotate synchronously. Since the second rotating seat 4 is initially in a driven state, a speed difference is generated between the second clamp 2 and the second rotating seat 4. Based on the principle of screw transmission, the speed difference is converted into a small axial feed displacement of the second clamp 2, thereby automatically increasing the clamping pressure on the ridge product 5.

[0033] As the clamping pressure increases, the transmission torque between the second clamp 2 and the second rotating seat 4 increases accordingly until it overcomes the driven resistance and drives the second rotating seat 4 to rotate synchronously. At this point, the axial feed of the second clamp 2 stops, the clamping pressure reaches a constant value, and the ridge product 5 is rigidly fixed.

[0034] Maintaining the above clamping state, the stable and fixed ridge product 5 is then subjected to further processing.

[0035] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification.

Claims

1. A high-precision ridge wedge-shaped positioning chuck, characterized in that, include: The first clamp (1) and the second clamp (2) are set relative to each other; The first clamp (1) includes a first connecting part (101) and a first clamping part (102) disposed at the front end of the first connecting part (101). The front end face of the first clamping part (102) is provided with a clamping surface (103) that is bent in a V shape. The second clamp (2) includes a second connecting part (201) and a second clamping part (202) disposed at the front end of the second connecting part (201). The front end of the second clamping part (202) corresponds to the clamping surface (103) to cooperate in forming the positioning space of the ridge product (5).

2. The high-precision ridge wedge positioning chuck according to claim 1, characterized in that, The clamping surface (103) has a central groove (104) extending along the V-shaped bend line of the clamping surface (103).

3. The high-precision ridge wedge positioning chuck according to claim 1, characterized in that, A gasket (203) is provided on the front end face of the second clamping part (202).

4. The high-precision ridge wedge positioning chuck according to claim 1, characterized in that, The first fixture (1) is fixedly connected to the rear end of the first rotating seat (3).

5. The high-precision ridge wedge positioning chuck according to claim 4, characterized in that, The first clamp (1) has a first internal thread (105) at its rear end, and the first rotating seat (3) has a first threaded post (301) that is fixedly connected to the first internal thread (105) at its front end.

6. The high-precision ridge wedge positioning chuck according to claim 1, characterized in that, The rear end of the second clamp (2) is movably connected to the second rotating seat (4).

7. The high-precision ridge wedge positioning chuck according to claim 6, characterized in that, The second clamp (2) has a second internal thread (204) at its rear end, and the second rotating seat (4) has a second threaded post (401) at its front end that is connected to the second internal thread (204) in a transmission manner.

8. The high-precision ridge wedge positioning chuck according to claim 1, characterized in that, The first clamp (1) and the second clamp (2) are made of brass.

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