Thin-walled ring clamping device

Abstract

The utility model discloses a kind of thin-wall ring clamping devices, belong to machining technical field.It includes body, clamp and screw, inner cavity is provided in body head, at the side away from inner cavity, the center of this side of body head is fixedly connected with a taper handle;The clamp of circular ring is matched with in the circumferential direction of the outside of body head, a screw is threadedly connected on the clamp, three evenly spaced openings are provided in the circumferential direction of body head;In the side opposite to one opening, a waist type groove is provided in the outside of body head;Threaded hole is provided in the clamp at the position corresponding to waist type groove, screw is threadedly connected in threaded hole, screw end is in waist type groove;Two protrusions are provided on the inner ring of clamp at the position of lower side of both sides of threaded hole.The utility model can realize accurate and reliable positioning to thin-wall ring workpiece, ensure the coaxiality and position accuracy of workpiece under clamping state, avoid local stress concentration simultaneously.

Description

Technical Field

[0001] This utility model relates to a thin-walled circular ring clamping device, belonging to the field of machining technology. Background Technology

[0002] Thin-walled circular parts have relatively weak rigidity. When using a three-jaw chuck for clamping during turning, the parts are prone to deformation due to excessive cutting force and uneven clamping force, which has become the core problem restricting the machining of thin-walled parts.

[0003] The synchronous radial movement of a three-jaw chuck can clamp and position the part, ensuring the coaxiality between the part center and the spindle rotation center. However, for thin-walled parts, due to their thin walls and weak resistance to deformation, a strong clamping force can directly cause plastic deformation. In addition to clamping force, excessive cutting force is another key factor causing deformation of thin-walled parts during turning. During turning, the tool and the surface of the part undergo cutting action, generating cutting resistance, feed resistance, and back resistance. Among them, the back resistance (radial cutting force) has a small moment of inertia about the cross section of the thin-walled part and cannot effectively resist the action of the back resistance, which easily leads to bending deformation.

[0004] To address the above issues, a thin-walled ring clamping device was designed. This clamping device enables simple and quick clamping of thin-walled rings, prevents clamping and cutting deformation, and improves machining accuracy and dimensional consistency. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this utility model provides a thin-walled ring clamping device. This device can achieve accurate and reliable positioning of thin-walled ring workpieces, ensure the coaxiality and positional accuracy of the workpieces in the clamping state, avoid local stress concentration, prevent workpiece deformation during processing, ensure the turning accuracy and consistency of thin-walled ring workpieces, and improve processing efficiency.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a thin-walled circular clamping device, including a body, a clamp and a screw. The head of the body is provided with an inner cavity. On the side away from the inner cavity, a conical shank is fixedly connected to the center of the head of the body. A circular clamp is fitted on the outer circumferential direction of the head of the body, and a screw is threaded onto the clamp.

[0007] Furthermore, the inner cavity serves as the positioning surface for the thin-walled circular part.

[0008] Furthermore, three evenly spaced openings are provided on the circumference of the head of the main body.

[0009] Furthermore, on the side opposite to one of the openings, a waist-shaped groove is provided on the outer side of the main body head.

[0010] Furthermore, at the position corresponding to the waist-shaped groove, a threaded hole is provided in the clamp, and a screw is threaded into the threaded hole, with the end of the screw abutting against the waist-shaped groove.

[0011] Furthermore, two protrusions are provided on the inner ring of the clamp at a position slightly below both sides of the threaded hole.

[0012] Furthermore, the two protrusions are arranged symmetrically, and the included angle between adjacent protrusions and threaded holes is 120º.

[0013] Furthermore, the cone shank of the body is a No. 5 Morse taper shank.

[0014] The beneficial effects of this utility model are: 1) Installation is quick and accurate, improving processing efficiency; 2) It can suppress deformation during the machining of thin-walled parts and improve machining quality; 3) The positioning and clamping are simple and reliable, ensuring dimensional consistency.

[0015] This thin-walled ring clamping device has been successfully applied in the production of a cannon ring part. Practical verification has shown that using this clamp increases production efficiency several times over, significantly increasing economic benefits. The design concept of this thin-walled ring clamping device is also worthy of widespread promotion within the machinery industry. It suppresses deformation during the machining of thin-walled parts, provides simple and reliable clamping and positioning, making machining simple and fast while effectively ensuring machining accuracy, thus improving work efficiency and quality. Using this thin-walled ring clamping device, precise and reliable positioning of the thin-walled ring workpiece can be achieved, ensuring the coaxiality and positional accuracy of the workpiece in the clamped state. Simultaneously, it avoids local stress concentration, prevents workpiece deformation during machining, and ensures the turning accuracy and consistency of the thin-walled ring workpiece. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

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

[0018] Figure 2 This is the front view of the main body of this utility model.

[0019] Figure 3 yes Figure 2 The left view.

[0020] Figure 4 yes Figure 2 A schematic diagram of the waist-shaped groove on the surface.

[0021] Figure 5 This is the front view of the clamp of this utility model.

[0022] Figure 6 yes Figure 5 The left view.

[0023] Numbering on the map: 1. Body, 101. Inner cavity, 102. Opening, 103. Waist-shaped groove, 2. Clamp, 201. Threaded hole, 202. Protrusion, 3. Screw. Detailed Implementation

[0024] like Figure 1 As shown in Figure 6, a thin-walled ring clamping device includes a body 1, a clamp 2, and a screw 3. The head of the body 1 has an inner cavity 101, which serves as a positioning surface for the thin-walled ring part. Three evenly spaced openings 102 are provided on the circumference of the head of the body 1. On the side opposite to one of the openings 102, a waist-shaped groove 103 is provided on the outer side of the head of the body 1. On the side away from the inner cavity 101, a tapered shank is fixedly connected to the center of this side of the head of the body 1. The tapered shank of the body 1 is a No. 5 Morse taper shank. A circular clamp 2 is fitted around the outer circumference of the head of body 1, and a screw 3 is threaded onto the clamp 2. At the position corresponding to the waist-shaped groove 103, a threaded hole 201 is provided in the clamp 2, and the screw 3 is threaded into the threaded hole 201, with the end of the screw 3 abutting against the waist-shaped groove 103. At the lower position on both sides of the threaded hole 201, two protrusions 202 are provided on the inner ring of the clamp 2. The two protrusions 202 are symmetrically arranged, and the included angle between the adjacent protrusions 202 and the threaded hole 201 is 120º.

[0025] During use, the thin-walled ring part is placed in the inner cavity 101 of the body 1, and the opening 102 plays the role of adjusting the clamping force; the clamp 2 fits around the head of the body 1 in the circumferential direction, the screw 3 moves in the threaded hole 201 of the clamp 2, and the end of the screw 3 presses against the waist-shaped groove 103 of the body 1. The two protrusions 202 play the role of positioning and support, forming an effective clamping, thereby clamping the thin-walled ring part.

[0026] This device adopts an open cylindrical clamping structure, which, compared with the traditional three-jaw chuck, distributes the clamping force evenly, avoiding local stress concentration. At the same time, due to the rigid support of the inner wall of the body 1, it suppresses the deformation of thin-walled ring parts during clamping and turning, ensuring machining accuracy.

[0027] The fixture body 1 has an inner cavity 101 on its inner side as a positioning surface. During use, no complicated adjustments are required. Simply place the thin-walled ring part to quickly complete the clamping and positioning, simplifying the operation process and improving processing efficiency. In addition, the fixture uses a No. 5 Morse taper shank, which can be quickly adapted and installed with conventional lathes without the need for equipment modification, and can be directly applied to production and processing.

[0028] This thin-walled ring clamping device meets both process requirements and batch production requirements. It has high production efficiency, no safety hazards, low manufacturing difficulty, strong operability, and also improves production efficiency.

[0029] How to use: 1. Body 1 is mounted on the lathe spindle via a taper shank; 2. The ring-shaped workpiece is placed between the openings 102 of the body 1 and positioned by the inner cavity 101 of the end face; 3. Clamp 2 is installed on the body 1 to ensure reliable clamping of the workpiece.

Claims

1. A thin-walled circular ring clamping device, characterized in that: Includes a body (1), a clamp (2) and a screw (3). The head of the body (1) has an inner cavity (101). On the side away from the inner cavity (101), a conical shank is fixedly connected to the center of the head of the body (1). A circular clamp (2) is fitted around the outer circumference of the head of the body (1). A screw (3) is threaded onto the clamp (2).

2. The thin-walled ring clamping device according to claim 1, characterized in that: The inner cavity (101) is the positioning surface.

3. The thin-walled ring clamping device according to claim 1, characterized in that: The main body (1) has three evenly spaced openings (102) on the circumferential direction of the head.

4. The thin-walled ring clamping device according to claim 3, characterized in that: On the side opposite to one of the openings (102), a waist-shaped groove (103) is provided on the outer side of the head of the main body (1).

5. A thin-walled ring clamping device according to claim 4, characterized in that: At the position corresponding to the waist-shaped groove (103), a threaded hole (201) is provided in the clamp (2), and the screw (3) is threaded into the threaded hole (201), with the end of the screw (3) abutting in the waist-shaped groove (103).

6. The thin-walled ring clamping device according to claim 5, characterized in that: Two protrusions (202) are provided on the inner ring of the clamp (2) at a position slightly below the two sides of the threaded hole (201).

7. A thin-walled ring clamping device according to claim 6, characterized in that: The two protrusions (202) are arranged symmetrically, and the included angle between the adjacent protrusions (202) and the threaded hole (201) is 120º.

8. A thin-walled ring clamping device according to claim 1, characterized in that: The cone handle of the body (1) is a No. 5 Morse cone handle.

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