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Process method of improving wall thickness uniformity of closed thin-walled rotary part

A thin-walled rotary and closed technology, which is used in the field of improving the wall thickness uniformity of closed thin-walled rotary parts, can solve the problems of uneven wall thickness, excessive unbalance, large coaxiality, etc., to improve product quality. 、Reduce the unbalance of parts and avoid the effect of multiple repairs

Active Publication Date: 2017-04-26
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of uneven wall thickness, large coaxiality and out-of-balance imbalance caused by the clamping problem of closed thin-walled rotary parts.

Method used

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  • Process method of improving wall thickness uniformity of closed thin-walled rotary part

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Embodiment Construction

[0023] The present invention is further described in detail in conjunction with the accompanying drawings and embodiments of the description.

[0024] Such as Figure 1-5 As shown, this technology realizes the precise machining of inner and outer profiles in one process by improving the process route and clamping method, adjusting the machining allowance, and adopting an appropriate fixture structure, and solves the problem of wall thickness of closed thin-walled rotary parts. uneven problem.

[0025] A process method for improving the wall thickness uniformity of closed thin-walled rotary parts,

[0026] 1) Design a new structure of precision turning fixture; usually the positioning part and the base part of the turning part turning fixture are assembled into one body. In order to realize the precise positioning of the cap and cover parts during the turning process, the formulated solution is:

[0027] Divide the fixture into two parts:

[0028] The first part is the posit...

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Abstract

The invention discloses a process method of improving wall thickness uniformity of a closed thin-walled rotary part. The process method comprises the steps: (1) designing a finish turning clamp of a novel structure; (2) designing a following process route according to the finish turning clamp; and (3) adjusting the working allowance of a finish turning procedure. As the performance and reliability of a new generation engine are improved, a higher requirement is posed to the processing precision of a part; a designer requires the amount of unbalance of the rotary part more and more strictly. Therefore, reduction of the amount of unbalance of a cover hood part which is relatively great in processing difficulty will be widely applied by using the method. Meanwhile, the technology is suitable for both processing closed rotary parts which are different in structure and size and improving the processing precision of the part, and the process method has a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of closed rotary parts processing, in particular to a process method for improving the wall thickness uniformity of closed thin-walled rotary parts. Background technique [0002] Hood parts are important components in the engine. This type of part is a closed thin-walled rotary part with high unbalance requirements; this type of part only has a mounting edge at one end, and the other end is a closed conical structure. Clamping is a difficult point in machining. In the process of processing, due to its structural characteristics, it is impossible to process the inner and outer profiles in one clamping, resulting in uneven wall thickness of the part, large inner and outer wall jumps, and poor coaxiality, which in turn leads to a low unbalance qualified rate and repeated repairs (Generally 6 to 10 times) can only be used out of tolerance, which affects its performance. This technology improves the process rou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 李冬梅王丽花王兴超赵明姚惠
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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