Self-centering clamping device for milling thin-wall shell

Abstract

The utility model discloses a thin-wall shell milling self-centering clamping device which comprises a clamp base and a clamp body, the clamp body is arranged on the clamp base, an outer side fixing mechanism is arranged on the clamp base, the clamp body is of a hollow structure, a slotting centering conical ring is arranged on the top of the clamp body, and a clamping mechanism is arranged on the outer side of the slotting centering conical ring. A hollow cone shaft is arranged in the slotting centering cone ring, an adjusting screw is arranged in the hollow cone shaft in a penetrating mode, the adjusting screw is in threaded fit with the clamp base, the height of the hollow cone shaft is adjusted by changing the height of the adjusting screw, and then the opening angle of the slotting centering cone ring is changed. The device has the beneficial effects of self-centering, height adjustment, reliable fixation, simplicity and convenience in operation, quickness in assembly and disassembly, deformation prevention, high adaptability, high safety and the like, is suitable for milling the thin-wall shell, and improves the machining efficiency and the machining quality.

Description

Technical Field

[0001] The utility model belongs to the field of clamping and positioning tooling, in particular to a self-centering clamping device for milling thin-wall shells. Background Art

[0002] Thin-walled shell components often serve as connectors, seals, and positioning components in circular rotating parts. Some of these components have very strict requirements for angular and linear dimensions, with wall thickness tolerances within +0.140mm and angular dimensions within ±10′. During the finishing process, uneven part features, material stress release, and improper positioning and clamping can easily lead to dimensional deviations, severe product deformation, and ultimately, product failure. Therefore, strict control of product positioning and clamping is crucial during the machining process to avoid dimensional deviations. Utility Model Content

[0003] The purpose of the utility model is to provide a self-centering clamping device for milling thin-walled shells, so as to solve the problem of dimensional tolerance during machining of thin-walled shells.

[0004] In order to solve the above problems, the utility model discloses a self-centering clamping device for milling thin-walled shells, including a clamp base, a clamp base, and the clamp base is arranged on the clamp base. The clamp base is provided with an outer fixing mechanism. The clamp base is a hollow structure. A slotted centering cone ring is provided on the top of the clamp base. A hollow cone shaft is provided in the slotted centering cone ring. An adjusting screw is provided through the hollow cone shaft. The adjusting screw is threadedly engaged with the clamp base. The height of the hollow cone shaft is adjusted by changing the height of the adjusting screw, and then the opening angle of the slotted centering cone ring is changed.

[0005] As a further improvement of the above technical solution:

[0006] The clamp body is fixed on the clamp base by means of locking screws.

[0007] The clamp body is provided with air holes perpendicular to the hollow structure.

[0008] The outer fixing mechanism includes a pressure plate seat and a pressure plate slidably arranged in the pressure plate seat. The pressure plate seat is fixed to the clamp base by connecting screws. A stud is provided through the pressure plate. One end of the stud is threadedly engaged with the clamp base, and the other end is threadedly engaged with a limiting nut. A compression spring is provided on the outer sleeve of the stud.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] Self-centering: The slotted centering ring and hollow tapered shaft provide self-centering, ensuring accurate centering of thin-walled housings during machining and improving machining quality. Adjusting the screw precisely adjusts the height of the hollow tapered shaft, thereby varying the opening angle of the slotted centering ring to accommodate thin-walled housings of varying sizes and enhance the fixture's versatility.

[0011] Air hole design: The clamp body is provided with air holes perpendicular to the hollow structure, which facilitates the circulation of coolant during processing and improves processing efficiency and quality.

[0012] Easy to operate: When loading and unloading parts, you only need to loosen the nut on the pressure plate and the screw on the tapered shaft to replace the parts. The whole process is simple to operate and improves work efficiency.

[0013] Quick loading and unloading: Through the rational design of fixing and adjusting mechanisms, the function of quick loading and unloading of parts is realized, which saves processing preparation time and improves production efficiency.

[0014] Prevent deformation: By screwing the adjusting screw into the tapered shaft to fix the thin-walled shell, deformation during processing is prevented and processing accuracy is guaranteed.

[0015] Strong adaptability: The clamping device can adapt to thin-walled shells of different sizes and shapes and has a wide range of applicability.

[0016] High safety: reasonable structure and design ensure safety during operation and reduce operational risks.

[0017] To sum up, the self-centering clamping device for milling thin-walled shells of this embodiment has the beneficial effects of self-centering, height adjustment, reliable fixation, easy operation, quick loading and unloading, deformation prevention, strong adaptability and high safety. It is suitable for milling thin-walled shells and improves processing efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the fixture base of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the clamp of the utility model;

[0021] Figure 4 This is a schematic diagram of the hollow tapered shaft structure of the utility model.

[0022] Figure numerals: 1. Clamp base; 10. Compression spring; 11. Stud; 12. Connecting screw; 2. Clamp body; 21. Slotted centering cone ring; 22. Air hole; 3. Locking screw; 4. Hollow cone shaft; 5. Adjusting screw; 6. Pressure plate; 7. Pressure plate seat; 8. Limit nut; 14. Thin-walled shell. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figures 1 to 4As shown, the self-centering clamping device for milling thin-walled shells of this embodiment includes a clamp base 1, a clamp body 2, and the clamp body 2 is arranged on the clamp base 1. The clamp base 1 is provided with an outer fixing mechanism. The clamp body 2 is a hollow structure. A slotted centering cone ring 21 is provided on the top of the clamp body 2. A hollow cone shaft 4 is provided in the slotted centering cone ring 21. An adjusting screw 5 is provided through the hollow cone shaft 4. The adjusting screw 5 is threadedly engaged with the clamp base 1. The height of the hollow cone shaft 4 is adjusted by changing the height of the adjusting screw 5, and then the opening angle of the slotted centering cone ring 21 is changed.

[0028] The clamp body 2 is fixed to the clamp base 1 by means of locking screws 3 .

[0029] The clamp body 2 is provided with an air hole 22 perpendicular to the hollow structure.

[0030] The outer fixing mechanism includes a pressure plate seat 7 and a pressure plate 6 slidably arranged in the pressure plate seat 7. The pressure plate seat 7 is fixed to the clamp base 1 by a connecting screw 12. A stud 11 is provided through the pressure plate 6. One end of the stud 11 is threadedly engaged with the clamp base 1, and the other end is threadedly engaged with the limiting nut 8. A compression spring 10 is provided on the outer sleeve of the stud 11.

[0031] The fixture base 1 is fixed on the workbench, the fixture body 2 is inserted into the upper end groove of the fixture base 1, the center hole is inserted into the tapered shaft 4, and the 4 locking screws 3 are screwed into the fixture base 1 through the 4 threaded holes of the fixture body 2. The circular runout requirement is based on the runout of the fixture body 2 being no more than 0.015. The connecting screws 12 are screwed into the pressure plate seat 7 and fixed to the fixture body 2. The thin-walled shell 14 is inserted into the fixture body 2, and the pressure plate 6 is installed in the pressure plate seat 7. The stud 11 is inserted into the compression spring 10 through the pressure plate 6 and the pressure plate seat 7, and the other end is screwed into the fixture base 1. Use a wrench to tighten the limit nut 8 to fix the pressure plate 6 so that the thin-walled shell 14 is fixed and compressed on all sides. Screw the adjusting screw 5 into the hollow tapered shaft 4 to fix the thin-walled shell 14 to prevent deformation and expansion parts.

[0032] When operating and loading and unloading parts, you only need to loosen the limit nut 8 at the pressure plate 6 and loosen the adjusting screw 5 at the hollow tapered shaft 4 to replace the parts. The whole process is simple to operate, and the clamping and disassembly are convenient and quick.

[0033] The above is only an embodiment of the present invention, and common knowledge such as the specific structure and characteristics of the scheme are not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claim involved.

Claims

1. A self-centering clamping device for milling thin-walled shells, characterized in that: The invention comprises a clamp base (1), a clamp body (2), the clamp body (2) being arranged on the clamp base (1), an outer fixing mechanism being arranged on the clamp base (1), the clamp body (2) being a hollow structure, a slotted centering cone ring (21) being arranged on the top of the clamp body (2), a hollow cone shaft (4) being arranged in the slotted centering cone ring (21), an adjusting screw (5) being arranged through the hollow cone shaft (4), the adjusting screw (5) being threadedly matched with the clamp base (1), and the height of the hollow cone shaft (4) being adjusted by changing the height of the adjusting screw (5), thereby changing the opening angle of the slotted centering cone ring (21).

2. The self-centering clamping device for milling thin-walled shells according to claim 1, characterized in that: The clamp body (2) is fixed to the clamp base (1) via a locking screw (3).

3. The self-centering clamping device for milling thin-walled shells according to claim 1, characterized in that: The clamp body (2) is provided with an air hole (22) perpendicular to the hollow structure.

4. The self-centering clamping device for milling thin-walled shells according to claim 1, characterized in that: The outer fixing mechanism includes a pressure plate seat (7) and a pressure plate (6) slidably arranged in the pressure plate seat (7); the pressure plate seat (7) is fixed to the clamp base (1) by connecting screws (12); a stud bolt (11) is provided through the pressure plate (6); one end of the stud bolt (11) is threadedly engaged with the clamp base (1), and the other end is threadedly engaged with a limit nut (8); and a compression spring (10) is provided on the outer sleeve of the stud bolt (11).

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