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Thin-wall rotary type component cylindrical lathe cutting clamping method and device

A thin-walled rotary and parts technology, which is applied in the field of clamping methods and devices for external turning of thin-walled rotary parts, can solve the problems of difficulty in controlling clamping force, inability to press-fit the end face, and inappropriate clamping methods. The clamping force is uniform, the irregular deformation is avoided, and the clamping method is reliable.

Inactive Publication Date: 2018-03-23
GUIZHOU HONGLIN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the small thickness of thin-walled parts, generally only about 0.5mm in thickness, the end face cannot be press-fitted, so this clamping method is not applicable
Therefore, at present, the processing quality is greatly affected by the clamping method during the external turning of thin-walled rotary parts, and the clamping force is difficult to control, which leads to the problem of deformation or scrapping of parts. Not only the processing accuracy is low, but also the processing scrap rate is high. , higher processing cost

Method used

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  • Thin-wall rotary type component cylindrical lathe cutting clamping method and device
  • Thin-wall rotary type component cylindrical lathe cutting clamping method and device
  • Thin-wall rotary type component cylindrical lathe cutting clamping method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1. A clamping method for external turning of thin-walled rotary parts, such as Figure 1 to Figure 3 As shown, this method achieves the purpose of clamping thin-walled rotary parts by tightening the inner hole of thin-walled rotary parts.

[0019] The method is to set the threaded cone ejector rod and the elastic hollow shaft, and use the relative movement of the threaded cone ejector rod and the elastic hollow shaft to expand the elastic hollow shaft and tighten the inner hole of the thin-walled rotary parts, so as to realize the thin-walled rotary parts. The purpose of clamping the wall rotary parts is to avoid the irregular deformation of the thin wall rotary parts; the elastic hollow shaft is moved by the threaded cone ejector rod, so that the inner cone surface of the elastic hollow shaft is on the top of the threaded cone surface. The outer tapered surface of the rod moves, so that the elastic hollow shaft expands and tightens the inner hole of the thin-w...

Embodiment 2

[0023] Example 2. like Figure 1-4 as shown, Figure 4 The parts are steel parts with a total length of 47.2mm, an outer diameter of 9.8mm, an inner hole diameter of 8.9mm, and a wall thickness of less than 0.45mm. The inner hole tolerance requirements are strict, and the tolerance zone is 0.015mm. Very difficult.

[0024] Tooling installation processing steps:

[0025] 1. Tooling preparation:

[0026] Base, elastic hollow shaft, threaded taper ejector rod and machine tailstock;

[0027] 2. Tooling installation

[0028] Connect the base 1 with the spindle of the CNC lathe through a chuck, and align the guide hole 4 to be concentric with the spindle of the machine tool.

[0029] Put the elastic hollow shaft 2 on the threaded conical ejector rod 3, then insert the threaded tapered ejector rod 3 into the guide hole 4 of the base 1, and screw it into the thread, so as to ensure that the elastic hollow shaft 2 can be placed on the threaded conical top. Move on bar 3.

[003...

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Abstract

The invention discloses a thin-wall rotary type component cylindrical lathe cutting clamping method and device. According to the method, an inner hole of a thin-wall rotary type component is tightened, and the purpose of clamping the thin-wall rotary type component is achieved; the clamping device used in the method comprises a base, an elastic hollow shaft and a top rod with a threaded conical surface, wherein a guide hole is formed in the center of the base; the guide hole is in threaded connection with the top rod of the threaded conical surface; the elastic hollow shaft is arranged at theperiphery of the top rod with the threaded conical surface. The device is relatively simple in structure, convenient in clamping operation and reliable in clamping mode, the situation that the thin-wall rotary type component is deformed or scraped in cylindrical latch cutting operation is avoided. Not only is the processing precision improved, but also the processing rejection rate is reduced, andthe processing cost is reduced.

Description

technical field [0001] The invention belongs to the field of precision machining, and particularly relates to a method and device for turning and clamping the outer circle of thin-walled rotary parts. Background technique [0002] The processing of thin-walled parts is a problem that has plagued the machining industry for a long time. Due to the poor rigidity of the parts themselves, the parts are prone to elastic deformation under the influence of clamping force and turning force in the process of clamping and processing, which affects the processing accuracy and cannot meet the final requirements. product requirements. [0003] When turning the outer circle of rotary parts, the most common clamping method is to have three jaws and use the inner hole of the part as the positioning reference for clamping, and the part is subjected to radial force. Too much clamping force will cause the part to be elliptical or even polygonal; too small clamping force will cause the part to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/40
CPCB23B31/408
Inventor 唐清沛石汝成杨刚田仁海
Owner GUIZHOU HONGLIN MACHINERY
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