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A processing method of graphite vane pump rotor and its special fixture

A processing method and technology of special fixtures, applied in stone processing tools, stone processing equipment, manufacturing tools, etc., can solve the problems of poor rotor accuracy and high rejection rate, achieve small differences in accuracy, avoid chipping, and good interchangeability Effect

Active Publication Date: 2018-11-16
深圳市石金科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing graphite rotor processing method, the precision of the processed rotor is not good, and the scrap rate is high

Method used

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  • A processing method of graphite vane pump rotor and its special fixture
  • A processing method of graphite vane pump rotor and its special fixture
  • A processing method of graphite vane pump rotor and its special fixture

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Embodiment Construction

[0055] The present invention will be further described below in conjunction with the examples and drawings, but the embodiments of the present invention are not limited thereto.

[0056] The processing method of a kind of graphite vane pump rotor in the present embodiment comprises following steps:

[0057] (1) End face milling: Clamp the workpiece on the workbench, first perform rough machining and milling on the first end face 1 of the workpiece, and ensure that the thickness of the workpiece is above 12.2mm, then turn the workpiece over and clamp it, and then Rough milling is carried out on the second end face to ensure that the workpiece is about 12.02 mm in size and ensure the smoothness of the first end face 1 and the second end face 2 . After finishing the rough machining of the milling end face, continue the finishing machining, and carry out finishing milling on the second end face 2, reduce the feed rate during the machining process, and increase the speed of the too...

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Abstract

The invention discloses a machining method for a graphite blade pump rotor and further discloses a first special clamp and a second special clamp which are used in the machining method. The machiningmethod comprises the following steps of (1) end face milling; (2) positioning hole drilling; (3) roughening; (4) assembly hole drilling; (5) rotary vane groove rough milling; (6) connecting plate positioning face finish milling; (7) first outer circle finish milling; (8) finish drilling; (9) secondary roughening; (10) second outer circle finish milling; (11) rotary vane groove finish milling; (12)breaking-milling; (13) outer circle grinding; and (14) plane grinding. According to the machining method, the coaxiality of the rotor and damage avoidance of the edges and corners of a rotary vane groove in the rotor can be ensured, and the machining accuracy and efficiency are improved. An air groove is formed in the first special clamp so that a workpiece can be tightly sucked, it is ensured that the workpiece cannot move in the machining process accordingly, and thus the machining accuracy of the workpiece is ensured; and an air draft hole is formed in the second special clamp so that therotor can be tightly sucked and fixed, and the machining accuracy of the rotor is improved.

Description

technical field [0001] The invention relates to a rotor processing method and its special fixture, in particular to a graphite vane pump rotor processing method and its special fixture. Background technique [0002] When the vane pump is working, it mainly realizes the working purpose through the mutual movement of the rotor and the rotating vane assembled on the rotor in the stator. From this, it can be seen that the quality of the rotor is particularly important. Therefore, there are strict requirements on the processing of the rotor, and its processing accuracy and quality must be guaranteed. [0003] The raw material of the graphite vane pump rotor is graphite, which is easy to collapse, fragile and wear-resistant. Therefore, the technical requirements for workers are very high during the processing process, which increases the difficulty of processing the rotor. In the existing graphite rotor processing method, the precision of the processed rotor is not good, and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C2/34F04C15/00B28D7/04B28D1/00B24B41/06B24B1/00
CPCB24B1/00B24B41/06B28D1/00B28D7/04F04C2/34F04C15/00F04C2230/10F04C2230/60F04C2240/20
Inventor 杨宗明周莉韦力凯南志华翟雨佳
Owner 深圳市石金科技股份有限公司
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