Method for machining equated holes of large-sized rotating member by gear hobbing machine

A technology of rotary parts and gear hobbing machines, which is applied in metal processing equipment, manufacturing tools, drilling/drilling equipment, etc., which can solve the problems of expensive machine tools and high processing costs of internal water rings, and achieve reduced manufacturing costs and high indexing accuracy , Guarantee the effect of machining accuracy

Inactive Publication Date: 2010-02-24
ANSTEEL HEAVY MACHINERY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Such machine tools are expensive, and the processing cost of the inner water ring is relatively high

Method used

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  • Method for machining equated holes of large-sized rotating member by gear hobbing machine
  • Method for machining equated holes of large-sized rotating member by gear hobbing machine

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The method of the invention utilizes the performance of high indexing precision of the gear hobbing machine, and transforms the machine tool so that the upper guide vane shaft hole of the inner water distribution ring 1 is processed with high precision.

[0021] Taking the processing of 16 guide vane shaft holes with a size of Φ155H7 as an example, the specific steps of this method are described below:

[0022] ①Remove the head of the hob on the gear hobbing machine, install the boring power head, install the boring power head 2 and the bracket 5 on the head of the hobbing machine, install the boring power head 2 on the bracket 5, and install the bracket 5 on the hobbing machine On the knife rest slide plate 3; the boring power head support 5 is a weldment, which is machined after eliminating the welding stress to ensure that the angle between the joint surface of the milling head and the hobbing machine column guide rail is 60 °. Wire cutting machine tools can be used ...

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Abstract

The invention relates to a method for machining equated holes of a large-sized rotating member by a gear hobbing machine. In the method, the gear hobbing machine is provided with a boring power head,the boring power head is utilized to machine the equated holes of the large-sized rotating member, and after centering and leveling, a position of a boring bar is centered on the spherical outside surface of the rotating member according to pitch circle scribing of the equated holes of the large-sized rotating member scribed by a vertical lathe so as to ensure that the axis of the boring bar is overlapped with the axes of the equated holes; and the boring power head performs rough machining and finishing on the equated holes. The method has the advantages of convenient operation, high machining accuracy and low manufacturing cost.

Description

technical field [0001] The invention relates to a method for machining equally divided holes of a large rotary part by using a gear hobbing machine. Background technique [0002] At present, the domestic and foreign processing methods for large rotary parts are generally processed by high-precision CNC vertical turning and boring machines, and the processing of equal holes is completed by numerical control indexing of the machine tool workbench. Such machine tools are expensive, and the processing cost of the inner water ring is relatively high. [0003] For example, the inner water distribution ring of the large-scale rotary part is an important part of the water guide mechanism of the tubular turbine. It, together with the outer water distribution ring and the guide vanes distributed between the inner and outer water distribution rings, constitute the main body of the water guide mechanism. The processing accuracy of the hole, the equal division of the hole and the positi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B43/00
Inventor 吴强王庆贺陈维关洪清
Owner ANSTEEL HEAVY MACHINERY CO LTD
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