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Burnishing evaluation method

An evaluation method and brushing technology, which is applied in the field of brushing technology, can solve the problems of relying on operator experience, difficulty in confirming the existence of peeling surfaces, and longer time required for brushing

Active Publication Date: 2013-09-11
JATCO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in the conventional visual judgment method, in order not to judge whether the surface defects remaining after brushing are defects that need to be removed or defects that will not be a problem even if they remain, brushing is repeated until all surface defects are eliminated. This becomes the reason that the time required for brushing becomes longer
[0007] In addition, it is difficult to confirm the existence of the detachable surface visually, and the actual situation can only rely on the operator's experience

Method used

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  • Burnishing evaluation method
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  • Burnishing evaluation method

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Embodiment Construction

[0022] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0023] figure 1 It is a cross-sectional view of a product obtained by forming holes 2 and 3 by machining on a workpiece 1 which is a cast product. During machining, a burr 4 is generated at the intersection of the hole 2 and the hole 3 . In addition, voids 5 generated during casting of workpiece 1 exist near the inner surface of hole 2 due to machining of hole 2 , and the surface (hereinafter referred to as "peelable surface") 6 near void 5 becomes easy to peel off.

[0024] These surface defects such as burrs 4 , peeling surfaces 6 are removed by inserting a brush 7 into the holes 2 , 3 and rotating the brush 7 .

[0025] figure 2 The procedure of brushing and its evaluation in this embodiment is shown. The procedure of brushing and its evaluation according to this embodiment will be described with reference to this figure.

[0026] First, brushing is performed b...

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Abstract

A burnishing evaluation method can evaluate whether defective surface defects are completely removed by burnishing when a product is used. Under a condition of removing the defects on the product surface by burnishing, whether the defects likely to be separated from the product are completely removed when the product is used is determined. Push force, namely brush push force, of a front end of a brush relative to the surface of a burnishing part is operated (S2). Based on the brush push force, brush pressure of a tangent direction parallel with the surface of the burnishing part and brush pressure of a normal direction vertical to the surface of the burnishing part are operated (S3). When the brush pressure of the tangent direction is higher than a determined value set higher than the pressure acting on the burnishing part when the product is used, and the brush pressure of the normal direction is higher than the determined value, that the defects likely to be separated from the product are completely removed when the product is used is determined (S4 and S5).

Description

technical field [0001] The present invention relates to a brushing technique for removing burrs and the like using a brush or the like. Background technique [0002] In-process products such as burrs generated by machining, burrs generated on the joint surface during molding, and surfaces that are easily peeled due to internal voids and poor surface processing (hereinafter referred to as "peelable surfaces") Various defects generated on the surface of the product (hereinafter collectively referred to as "surface defects") are separated from the product due to pressure (oil pressure, water pressure, etc.) generated during use, when they are caught in movable parts or block the flow path It becomes the cause of malfunction of the product. Therefore, it is important that surface defects are removed by brushing beforehand. [0003] As disclosed in Patent Document 1, brushing is performed by a machine or an operator pressing a rotating brush against a site where a surface defec...

Claims

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Application Information

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IPC IPC(8): B24B9/00
Inventor 曾和真弘
Owner JATCO LTD