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The Compensation Method for Rotation Error Measurement of Rotary Table Boring

A technology of rotation error and compensation method, which is used in measuring/indicating equipment, metal processing equipment, other manufacturing equipment/tools, etc. Accuracy function Hole coaxiality requirements at both ends of the hole, improving accuracy, and the effect of great practical value

Active Publication Date: 2022-01-07
XIAN FLIGHT SELF CONTROL INST OF AVIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of the processing method of the existing rotary alignment body, the cylindricity error of the alignment hole is about 0.004mm, and the error of the generatrix of the alignment hole is about 0.003mm. These two errors are random errors, which are mixed in the turntable after accumulation. In the measured value of the error of the rotary system, it affects the accuracy of the measured value of the error of the rotary system of the turntable
In addition, the existing compensation uses the error value of the rotary system of the turntable in a certain direction as the error value of the rotary system in all directions of the turntable for compensation, and the compensation accuracy is poor.

Method used

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  • The Compensation Method for Rotation Error Measurement of Rotary Table Boring
  • The Compensation Method for Rotation Error Measurement of Rotary Table Boring
  • The Compensation Method for Rotation Error Measurement of Rotary Table Boring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] figure 1 It is a structural schematic diagram of the rotary aligning body of the present invention, figure 2 It is a sectional view of the rotary aligning body of the present invention, as figure 1 and figure 2 As shown, the diameter D1 of the alignment hole is φ25mm, the hole depth H1 is 30±0.005mm, the cylindricity is 0.001mm, the perpendicularity between the alignment hole and the end surface B is 0.001mm, and the parallelism between the two end surfaces B is 0.002 mm. After the rotary aligning body is made, it can be used repeatedly for a long time without loss of accuracy and function.

[0027] image 3 It is a schematic diagram of the installation of the rotary aligning body and the processed parts on the machine tool of the present invention. Press the rotary alignment body 1 image 3 As shown, it is fixed on the turntable 3 of the machine tool. Use a dial gauge to straighten the surface B of the rotary alignment body within 0.001mm, straighten the surfac...

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Abstract

The invention belongs to the technical field of hole system machining, and in particular relates to a machine tool which rotates a turntable by 180° and precisely compensates the error of the turntable rotation system when boring holes at both ends. The method for measuring and compensating the rotary error of the rotary table boring provided by the invention includes designing a rotary alignment body, measuring the rotary system error of the rotary table, compensating for the rotary system error of the rotary table and processing workpieces. The invention can accurately measure the error value of the rotary system of the turntable, and can accurately compensate the error of the rotary system of the turntable when the workpiece is bored at both ends.

Description

technical field [0001] The invention belongs to the technical field of hole system machining, and in particular relates to a method for accurately measuring and compensating the rotation error of boreholes at both ends of a machine tool turntable rotating 180°. Background technique [0002] Boring is a common hole processing method in mechanical cutting. Boring at both ends is one of the methods of boring. It is mainly used in the precision machining of elongated holes with relatively large length and diameter. In boring processing, if the overhang of the boring bar is too long, the rigidity of the entire boring system will be reduced, and the end of the tool will vibrate, which will affect the machining accuracy of the boring. Therefore, in the processing of elongated holes with relatively large long diameters, the rotary table of the machine tool (hereinafter referred to as the turntable) is usually rotated 180°, and the tools are bored from both ends of the same hole of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q17/22B23Q23/00
CPCB23Q17/22B23Q23/00
Inventor 何永红曹雅维袁甲
Owner XIAN FLIGHT SELF CONTROL INST OF AVIC
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