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A clamping and aligning device and method suitable for ultra-precision turning of shell-type rotary parts

A rotary parts, ultra-precision technology, applied in the field of rotary precision machining of parts, can solve the problems of machining accuracy and installation accuracy, dynamic unbalance, inconvenient observation, affecting machining accuracy and machined surface quality, etc.

Active Publication Date: 2021-09-10
MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when machining the inner and outer profiles of shell-type rotary parts, the inner and outer suction cups are often used to fix the workpiece. The continuous disassembly of the suction cups in this process will inevitably lead to wear of the tooling datum and loss of accuracy of the mounting surface. Tool centering is performed directly on the workpiece. High adjustment is often inconvenient to observe, and it is difficult to achieve the expected effect. The machining accuracy and installation accuracy of the tooling-workpiece system will produce a certain degree of dynamic imbalance, which will increase the centrifugal force during the spindle rotation process and affect the machining accuracy and surface quality.

Method used

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  • A clamping and aligning device and method suitable for ultra-precision turning of shell-type rotary parts
  • A clamping and aligning device and method suitable for ultra-precision turning of shell-type rotary parts
  • A clamping and aligning device and method suitable for ultra-precision turning of shell-type rotary parts

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Embodiment 1

[0032] In view of the low processing precision and poor processing quality of the existing rotary parts 7, this embodiment proposes a clamping and alignment device, which facilitates the accurate installation of the parts 7, and also adjusts the parts 7 in a more convenient way, reducing the processing time. The beating in the process improves the efficiency and quality of processing.

[0033] Specifically, such as figure 1 , figure 2 and image 3 As shown, a clamping and aligning device suitable for ultra-precision turning of shell-type rotary parts disclosed in this embodiment includes a suction cup 1 on the outer surface, and a suction port for fitting the outer surface of the suction cup 1. The rotary slope or rotary arc surface of the profile; the suction port of the external surface suction cup 1 is provided with a detachable end surface suction cup 4 for fitting the inner surface of the part 7, and the inner end surface of the end surface suction cup 4 fits and cover...

Embodiment 2

[0045] The content of the above-mentioned embodiment discloses the composition and structure of the alignment device. This embodiment discloses a clamping and alignment method suitable for ultra-precision turning of shell-type rotary parts. This method uses the alignment device disclosed in the content of the above-mentioned embodiment , specifically, include the following:

[0046] S01: Connect the external surface suction cup and the end surface suction cup coaxially, and set the external surface suction cup to be coaxially connected with the drive shaft, and connect the external surface suction cup to set the alignment cutter, test the radial runout value of the alignment cutter, mirror image Install the tool setting test piece when the runout value reaches the standard;

[0047] S02: Trial cut the test surface (ie surface A) of the tool setting test piece to adjust the center height of the tool, and remove the tool setting test piece and the tool setting disc after the adj...

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Abstract

The invention relates to the field of precision machining of parts rotation, and provides a clamping and aligning device and method suitable for ultra-precision turning of shell-type rotary parts. The aligning device includes a suction cup on the outer surface. The rotary slope or the rotary arc surface of the external surface of the part; the suction cup of the external surface is provided with a detachable end surface suction cup, the inner end surface of the end surface suction cup fits and covers the suction port of the external surface suction cup, and the end surface suction cup is provided. The negative pressure air hole of the suction port of the surface suction cup; the adjustment structure for adjusting the dynamic balance of the end surface suction cup is arranged between the end surface suction cup and the external surface suction cup. The present invention is provided with mutually matched external surface suction cups and end surface suction cups, and the suction cups used for connection can be adjusted and selected according to the different processing surfaces of the parts to be processed, which avoids the reduction of installation accuracy caused by repeated disassembly and assembly of tooling parts, and affects the processing accuracy. It improves the convenience of parts installation and fixing, and improves the efficiency and quality of processing.

Description

technical field [0001] The invention relates to the technical field of rotary precision machining of parts, in particular to a clamping and aligning device and method suitable for ultra-precision turning of shell-type rotary parts. Background technique [0002] In the preparation of ultra-precision turning, the installation accuracy of tooling, the adjustment of tool center height and the dynamic imbalance of tooling-workpiece system directly affect the realization of machining accuracy and surface quality. However, when machining the inner and outer profiles of shell-type rotary parts, the inner and outer suction cups are often used to fix the workpiece. The continuous disassembly of the suction cups in this process will inevitably lead to wear of the tooling datum and loss of accuracy of the mounting surface. Tool centering is performed directly on the workpiece. High adjustment is often inconvenient to observe, and it is difficult to achieve the expected effect. The machi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/00
CPCB23Q3/00B23Q2703/04
Inventor 邓楚铨熊雪峰郭亮韩海峰张军峰成友友罗伟黄德才
Owner MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS