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Primary machining method for baseline of bearing frame casting piece of oblique support plate

A technology of oblique support and preliminary processing, which is applied in the direction of metal processing equipment, manufacturing tools, turning equipment, etc., can solve problems affecting the production efficiency of processing units, waste of equipment and personnel, and scrapping of castings, so as to improve processing capacity and improve processing The effect of improving efficiency and improving the dimensional accuracy of castings

Inactive Publication Date: 2018-05-08
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Problems solved by technology

The emergence of these problems, ranging from repeated elimination of defects or coordination of reporting, etc., seriously affects the production efficiency of processing units, resulting in waste of equipment and personnel; serious causes scrapping of castings, resulting in huge economic losses

Method used

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  • Primary machining method for baseline of bearing frame casting piece of oblique support plate
  • Primary machining method for baseline of bearing frame casting piece of oblique support plate
  • Primary machining method for baseline of bearing frame casting piece of oblique support plate

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Embodiment Construction

[0044] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0045] A benchmark preliminary processing method for a load-bearing frame casting of a slanted support plate, the preliminary processing method is as follows:

[0046] (1) The end surface A of the rear mounting edge of the outer ring is used as the axial reference, the inner hole B of the front mounting edge of the inner ring is used as the radial reference of the casting, and the center C of the inclined support plate is used as the angular reference;

[0047] (2) There is a margin of 3mm at the A and B benchmarks, and the surface gloss is Ra3.2; the dimensional accuracy of A, B, and C benchmarks is ±0.1mm.

[0048] The specific processing steps of the primary processing method are as follows:

[0049] Step 1: Scribe to check the axial machining allowance

[0050] Put the casting on the marking platform, take into account the relative position of t...

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Abstract

The invention discloses a primary machining method for a baseline of a bearing frame casting piece of an oblique support plate. The primary machining method comprises the following steps: (1) taking the end face A of a rear mounting side of an outer ring as an axial baseline, taking an inner hole B of a front mounting side of an inner ring as a radial baseline of a casting piece, and taking the center C of the oblique support plate as an angular baseline; and (2) leaving 3 mm of margin at the baselines of the A and the B, wherein the surface smoothness is Ra3.2, and the dimension precision ofthe baselines of the A, the B and the C is + / -.1 mm. The primary machining method disclosed by the invention integrates design, casting and the baselines for machining, realizes a high positioning precision, can be used for rapidly and accurately measuring the dimension of the bearing frame casting piece of the oblique support plate, improves the dimension precision of the casting piece, improvesthe machining efficiency and increases the machining capacity.

Description

technical field [0001] The invention belongs to the field of oblique-bracing load-bearing frame manufacturing, and in particular provides a benchmark preliminary processing method for castings of an oblique-bracing load-bearing frame. Background technique [0002] The raw material of the existing engine inclined support plate load-bearing frame casting is processed by the processing unit of the main engine factory. During the processing process, there are often phenomena such as exposed metallurgical defects on the processed surface and unqualified dimensions. The emergence of these problems, ranging from repeated elimination of defects or coordination of reporting, etc., seriously affects the production efficiency of processing units, resulting in waste of equipment and personnel; severe, it causes the scrapping of castings and brings huge economic losses. [0003] In view of this phenomenon, it is believed through analysis that metallurgical defects can be solved by the su...

Claims

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Application Information

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IPC IPC(8): B23B5/00B23B1/00
CPCB23B5/00B23B1/00
Inventor 史凤岭白雪峰孙宝财李汉运于海涛
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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