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Internal supporting tools for cylindrical part edge cutting machining

A cylindrical part and edge trimming technology, applied in the direction of expanding the mandrel, can solve the problems of low machining accuracy and low efficiency, and achieve the effects of high machining accuracy, high efficiency and convenient operation.

Inactive Publication Date: 2020-04-28
XIAN AEROSPACEMOTOR MACHINE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the disadvantages of low machining accuracy and low efficiency in the prior art, the present invention proposes an inner brace used for machine trimming of cylindrical parts

Method used

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  • Internal supporting tools for cylindrical part edge cutting machining
  • Internal supporting tools for cylindrical part edge cutting machining
  • Internal supporting tools for cylindrical part edge cutting machining

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] This embodiment is an inner brace used for machine trimming of cylindrical parts with a wall thickness ≤ 3mm. There are two inner braces, which are used in pairs.

[0036] This embodiment includes a sleeve 1 and a shaft 2 . The sleeve 1 is sleeved on the outer peripheral surface of one end of the shaft 2 .

[0037] The sleeve is made of elastic steel, 65Mn is used in this embodiment. Shaft 2 is made of 45# steel.

[0038] The sleeve 1 is a cylindrical part and is divided into an elastic section and a rigid section. The inner surface of the rigid section close to the elastic section is a threaded surface matched with the outer surface of the shaft, and the center of the end plate of the rigid section has a through hole for installing the shaft 2, and the shaft hole and the shaft Sliding fit; the inner end surface of the end plate of the rigid section is the travel limit surface of the shaft. Two operating blind holes are evenly distributed on the outer peripheral sur...

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PUM

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Abstract

The invention provides internal supporting tools for cylindrical part edge cutting machining. The number of the internal supporting tools is two. The two internal supporting tools are used in pairs. The inner surface, close to an elastic section, of a rigid section of a sleeve is a thread surface matched with the outer surface of a shaft. The center of an end plate of the rigid section is providedwith a through hole used for mounting the shaft. The shaft hole is in sliding fit with the shaft. The elastic section is composed of a plurality of elastic bars. The surface of the outer circumference of the outer end of each elastic bar is provided with a part supporting block protruding in the radial direction. When the internal supporting tools are in use, the cylindrical part is supported through expansion and contraction of the elastic bars, and the machining precision is improved. Moreover, the internal supporting tools are easy, fast and convenient to cut, improves the effect and reduces the labor intensity.

Description

technical field [0001] The invention relates to the machinery manufacturing industry, in particular to design and manufacture a machine-trimmed internal brace for cylindrical parts with a wall thickness not greater than 3.0 mm, which can be installed on a numerically controlled lathe. Background technique [0002] At present, the most commonly used domestically-used thin-wall spinning cylindrical parts with a wall thickness not greater than 3.0mm adopt the following two structures: the multi-top self-centering adjustable structure and the circumferential split-type adjustable structure. structure. [0003] The application number is 201610749071.0, and the announcement number is CN106271354B "A Self-Centering Internal Support", which is a self-centering adjustable structure support with multiple top blocks, and the telescopic screw structure is installed on the circumferential surface of the guide ring. In the guide chute, when working, the movement of the screw realizes the...

Claims

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Application Information

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IPC IPC(8): B23B31/40
CPCB23B31/40B23B31/4006
Inventor 杨延涛曹学文王亚社王北平孟繁瀛牟少正写旭杨东浩张传坤宋琪
Owner XIAN AEROSPACEMOTOR MACHINE FACTORY