阅读说明：本技术 一种大型薄壁类筒体零件快速装夹定心工装 (Large-scale thin-walled cylinder part quick clamping centering tool ) 是由 武晓会 张荣新 黄南洋 于 2019-09-29 设计创作，主要内容包括：本发明提出一种大型薄壁类筒体零件快速装夹定心工装,包括锥面顶胎及弹性涨胎组成；其中,锥面顶胎由圆柱和锥台组成,圆柱部分用于夹持在车床上,锥台用于通过其锥面部分撑开弹性涨胎；弹性涨胎的外圆为圆柱面,用于支持薄壁类筒体零件,内型为圆锥面,用于和锥面顶胎的锥台配合；弹性涨胎的周圈开设有多个孔,相邻孔在不同的方位开有槽,使得弹性涨胎成为弹性体,在锥面顶胎的压力下向外撑开以撑紧零件。使用该工装可实现保护筒壳体的快速定位装夹,大大提高装夹效率；同时能够也保证内外圆的同轴度,进而保证保护筒壳体壁厚的一致性。(The invention provides a large-scale thin-wall cylinder part rapid clamping and centering tool which comprises a conical surface top tire and an elastic expansion tire; the conical surface top tire consists of a cylinder and a frustum, wherein the cylinder part is used for clamping on a lathe, and the frustum is used for opening the elastic expansion tire through the conical surface part; the outer circle of the elastic expansion tire is a cylindrical surface and is used for supporting a thin-wall cylinder part, and the inner shape of the elastic expansion tire is a conical surface and is used for matching with a frustum of a conical surface top tire; a plurality of holes are formed in the periphery of the elastic expansion tire, and grooves are formed in the adjacent holes in different directions, so that the elastic expansion tire becomes an elastic body and is outwards expanded under the pressure of the conical surface jacking tire to tightly support parts. The tool can realize quick positioning and clamping of the protective cylinder shell, and greatly improves the clamping efficiency; meanwhile, the coaxiality of the inner circle and the outer circle can be guaranteed, and the consistency of the wall thickness of the protective cylinder shell is further guaranteed.)

1. A large-scale thin-walled cylinder part fast clamping and centering tool is characterized by comprising a conical surface top tire and an elastic expansion tire; the conical surface top tire consists of a cylinder and a frustum, the cylinder part is clamped on a lathe, and the frustum is used for expanding the elastic expansion tire through the conical surface part; the outer circle of the elastic expansion tire is a cylindrical surface and is used for supporting a thin-wall cylinder part, and the inner shape of the elastic expansion tire is a conical surface and is used for matching with a frustum of the conical surface top tire; a plurality of holes are formed in the periphery of the elastic expansion tire, and grooves are formed in the adjacent holes in different directions, so that the elastic expansion tire becomes an elastic body and is outwards expanded under the pressure of the conical surface ejection tire to tightly support parts.

2. The tooling of claim 1, wherein the holes formed on the periphery of the elastic expansion tire are uniformly distributed.

Technical Field

The invention belongs to the technical field of part centering, and particularly relates to a large-scale thin-wall cylinder part rapid clamping and centering tool.

Background

At present, most of large-sized weak-rigidity thin-wall cylinder parts have high requirement on coaxiality of internal and external circles. In the process of finish machining of the inner circle and the outer circle, in order to guarantee coaxiality of the inner circle and the outer circle, machining is finished by the same lathe, namely the front end of the cylinder is fixed by a tool, a center frame is arranged on the outer circle close to the rear end region to improve rigidity of a system, turning of the inner circle is carried out firstly, the center frame is detached after turning of the inner circle is finished, another supporting tool is arranged at the tail of the cylinder, and turning of the outer circle is carried out after centering by drawing a meter. In the process, the central frame is heavy and inconvenient to disassemble and assemble, so that the workload of installing and disassembling the central frame is very large, and the processing efficiency of parts is seriously influenced.

Disclosure of Invention

Technical problem to be solved

The invention provides a large-scale thin-wall cylinder part rapid clamping and centering tool, which aims to solve the technical problems of ensuring the coaxiality of inner and outer circles of a part and improving the processing efficiency.

(II) technical scheme

In order to solve the technical problem, the invention provides a large-scale thin-wall cylinder part rapid clamping and centering tool which comprises a conical surface top tire and an elastic expansion tire; the conical surface top tire consists of a cylinder and a frustum, wherein the cylinder part is used for clamping on a lathe, and the frustum is used for opening the elastic expansion tire through the conical surface part; the outer circle of the elastic expansion tire is a cylindrical surface and is used for supporting a thin-wall cylinder part, and the inner shape of the elastic expansion tire is a conical surface and is used for matching with a frustum of a conical surface top tire; a plurality of holes are formed in the periphery of the elastic expansion tire, and grooves are formed in the adjacent holes in different directions, so that the elastic expansion tire becomes an elastic body and is outwards expanded under the pressure of the conical surface jacking tire to tightly support parts.

Furthermore, the holes arranged on the periphery of the elastic expander are uniformly distributed.

(III) advantageous effects

The invention provides a large-scale thin-wall cylinder part rapid clamping and centering tool which comprises a conical surface top tire and an elastic expansion tire; the conical surface top tire consists of a cylinder and a frustum, wherein the cylinder part is used for clamping on a lathe, and the frustum is used for opening the elastic expansion tire through the conical surface part; the outer circle of the elastic expansion tire is a cylindrical surface and is used for supporting a thin-wall cylinder part, and the inner shape of the elastic expansion tire is a conical surface and is used for matching with a frustum of a conical surface top tire; a plurality of holes are formed in the periphery of the elastic expansion tire, and grooves are formed in the adjacent holes in different directions, so that the elastic expansion tire becomes an elastic body and is outwards expanded under the pressure of the conical surface jacking tire to tightly support parts. The tool can realize quick positioning and clamping of the protective cylinder shell, and greatly improves the clamping efficiency; meanwhile, the coaxiality of the inner circle and the outer circle can be guaranteed, and the consistency of the wall thickness of the protective cylinder shell is further guaranteed.

Drawings

Fig. 1 is a structural schematic view of a rapid clamping and centering tool for large-scale thin-wall cylinder parts according to an embodiment of the invention.

Detailed Description

In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.

The embodiment provides a large-scale thin-wall cylinder part quick clamping and centering tool, which is structurally shown in figure 1 and comprises a conical surface top tire 1 and an elastic expansion tire 2. The conical surface top tire 1 comprises a cylinder and a frustum, the cylinder part is clamped on a lathe, and the frustum is used for opening the elastic expansion tire 2 through the conical surface part. The outer circle of the elastic expansion tire 2 is a cylindrical surface and used for supporting thin-wall barrel parts, the inner shape is a conical surface and used for matching with a frustum of the conical surface top tire 1, uniformly distributed holes are formed in the periphery of the elastic expansion tire 2, and grooves are formed in adjacent holes in different directions, so that the elastic expansion tire 2 becomes an elastic body and can be outwards unfolded under the pressure of the conical surface top tire 1, and the effect of tightly supporting the parts is achieved.

When the lathe is used, the conical surface top tire 1 is firstly installed on four claws of a lathe (the conical surface top tire 1 needs to be installed on the front claw and the rear claw), the four claws are adjusted, and the outer circular surfaces of the front conical surface top tire 1 and the rear conical surface top tire 1 are coaxial by performing surface measurement. Before processing, the elastic expansion tire 2 is arranged in the inner circles at the two ends of the shell and is flatly attached to the end face of the protection cylinder, then the front conical surface top tire 1 and the rear conical surface top tire 1 are simultaneously and inwards extruded to expand the outer circle of the elastic expansion tire 2, the shell of the protection cylinder is supported and fixed, and at the moment, the outer circle turning can be carried out.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.