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Alignment method for turnover boring

A technology of boring and positive blocks, which is applied in the direction of boring/drilling, drilling/drilling equipment, metal processing equipment, etc., can solve the problems that the turning-back boring cannot meet the requirements, and the processing coaxial error is too large, etc., to achieve Solve the coaxial problem of U-turn boring, good practicability, and clear design ideas

Inactive Publication Date: 2018-12-07
XIAN FLIGHT SELF CONTROL INST OF AVIC
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is: in order to solve the rotation error of the machine tool caused by the misalignment of the actual rotation center of the machine tool and the theoretically calculated rotation center of the machine tool during the U-turn boring, the resulting processing coaxial error is too large, thus causing the U-turn boring to fail to meet the requirements; The invention provides an alignment method for turning around and boring holes. The standard alignment block is used to solve the difference between the actual rotation center of the machine tool and the theoretically calculated rotation center of the machine tool through the alignment method, and through machining compensation when processing parts, Guarantee the coaxiality of the U-turn boring and meet the accuracy requirements of the U-turn boring

Method used

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Embodiment

[0023] Example: A certain type of housing has a Φ25 through hole and a length of 323mm. Use a Φ26 standard hole with a length of 100mm for alignment, use a dial indicator to straighten the through hole on the standard alignment block 1 to 0.002mm, and the center error of the through hole of the standard alignment block 1 for alignment is 0.002mm, eliminating the machine tool table rotation 180 °Finally, for the alignment error of the through hole on the standard alignment block 1, set the horizontal coordinate of the through hole center of the alignment block 1 to 0, and use this coordinate as the theoretical horizontal coordinate. The machine tool table rotates 180° to drive the standard aligning block 1 to turn around to the actual position 3 of the standard aligning block, and to align again the actual horizontal coordinate of the center of the through hole on the standard block 1 is +0.012mm, and the theoretical position 2 after the standard aligning block is turned around ...

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Abstract

The invention belongs to the technical field of hole system machining and manufacturing, and particularly relates to an alignment method for turnover boring. According to the method, a through hole ina standard alignment block serves as an alignment object to solve the difference value of an actual rotation center of a machine tool and a theoretical calculation rotation center of the machine tool, namely, a rotation deviation error of the machine tool. The rotation error is used for compensation machining of actual turnover boring machining parts, the design idea is clear and specific, the problem about high-precision functional hole turnover boring coaxiality can be effectively solved, the practicability is good, application and popularization are easy, and the practical value is high.

Description

technical field [0001] The invention belongs to the technical field of machining and manufacturing of hole systems, and in particular relates to a method for aligning a U-turn boring hole. Background technique [0002] Boring is one of the most common hole processing methods in mechanical manufacturing, especially metal cutting, and U-turn boring is one of the boring methods. This process method is mainly used in long hole processing or processing of coaxial hole system. In boring processing, if the overhang of the boring tool bar is too long, it will cause deformation due to gravity, and the cantilever end of the tool bar will produce a large bending deflection. In addition, if the overhang is too long, the end of the tool will also vibrate, all of which will affect the machining accuracy of the boring. Therefore, in the machining of long holes or hole systems, the tool is bored from both ends of the part successively, and the boring of long holes is changed into short ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B39/00
CPCB23B39/00
Inventor 姚东成孙建波袁甲
Owner XIAN FLIGHT SELF CONTROL INST OF AVIC
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