Method for machining bearing block parts with precision dimensions

A process method and bearing seat technology are applied in the field of precision dimension processing of bearing seat parts, which can solve the problems of precision dimension deformation of bearing seat parts, and achieve the effect of wide prospect and wide application range.

Active Publication Date: 2014-03-05
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the serious problem of the deformation of the precise size of t

Method used

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  • Method for machining bearing block parts with precision dimensions
  • Method for machining bearing block parts with precision dimensions
  • Method for machining bearing block parts with precision dimensions

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Effect test

Embodiment 1

[0022] The present invention provides a processing method for precision dimensioning of bearing seat parts, which is characterized in that: in the process for processing the precise dimensioning of bearing seat parts, a separate finishing process of important diameter dimensions is added after all machining processes are completed; from The flatness of the reference plane of the part, the flatness of the faceplate of the machine tool, and the flatness of the positioning surface of the fixture are controlled in three aspects, and the coloring and closeness of the reference surface of the part is strengthened to strengthen the process control; the faceplate and the fixture surface of the machine tool are trimmed to ensure that the flatness of the positioning surface of the fixture is 0.005max, and the parts The bonding degree between the processing datum surface and the positioning surface of the fixture is more than 75% (using the method of coloring inspection), and there is no s...

Embodiment 2

[0034]The present invention provides a processing method for precision dimensioning of bearing seat parts, which is characterized in that: in the process for processing the precise dimensioning of bearing seat parts, a separate finishing process of important diameter dimensions is added after all machining processes are completed; from The flatness of the reference plane of the part, the flatness of the faceplate of the machine tool, and the flatness of the positioning surface of the fixture are controlled in three aspects, and the coloring and closeness of the reference surface of the part is strengthened to strengthen the process control; the faceplate and the fixture surface of the machine tool are trimmed to ensure that the flatness of the positioning surface of the fixture is 0.005max, and the parts The bonding degree between the processing datum surface and the positioning surface of the fixture is more than 75% (using the method of coloring inspection), and there is no su...

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Abstract

The invention discloses a method for machining bearing block parts with precision dimensions. The method is characterized in that an independent important diameter dimension fine turning procedure is added after all machining procedures are completed; the flatness of a reference plane for the parts, the flatness of a disc chuck of a machine tool and the flatness of a fixture positioning surface are controlled, and process control on the coloring contiguity of the reference plane for the parts is strengthened; the disc chuck and a fixture surface of the machine tool are trimmed, so that the flatness of the fixture positioning surface can be guaranteed, the fitting degree between the machining reference plane for the parts and the fixture positioning surface is higher than 75%, and suspension of compressed positions is prevented. The method mainly includes rough lathing, stabilizing treatment, finish lathing, corrosion, boss plane milling, through hole linear cutting, semi-fine turning, planar groove electric sparkle treatment, fine turning, hole boring and elongated slot milling, inner plane and disc edge milling, plane and hole milling, inclined hole drilling, tapping, grinding, inner hole fine turning, fluorescence treatment and inspection. The method has the advantages that deformation of the aviation and aerospace bearing block parts with the precision dimensions in machining procedures can be effectively controlled, and the method is wide in application range and prospect.

Description

technical field [0001] The invention relates to the technical field of precision-dimension machining technology for bearing seat parts, in particular to a process method for machining precision-dimension parts for bearing seats. Background technique [0002] The existing precision machining process of bearing seat parts is rough turning—stabilization treatment—semi-finishing turning—corrosion inspection—finishing turning—boring—milling—EDM—inspection, often due to processing sequence, equipment selection, large Factors such as the removal of the allowance and the clamping force of the parts cause serious deformation of the parts, resulting in the failure of some design dimensions and technical conditions to meet the requirements, and it is easy to produce waste and out-of-tolerance products. Contents of the invention [0003] The purpose of the present invention is to solve the serious problem of deformation of bearing seat parts in precise dimensions, and especially provi...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 刘姝孙玉民张春华赵冬梅燕凯
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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