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A mirror group fixture for precision testing of CNC machine tools

A mirror group, precision detection technology, applied in the fields of testing instruments and mechanical manufacturing design, can solve problems such as low adjustment efficiency and precision, unfavorable industrial automation, etc., and achieve the effect of reducing clamping errors and facilitating detection and identification.

Active Publication Date: 2021-04-27
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Under normal circumstances, according to the different detection target axes, it is necessary to repeatedly adjust the reflector installed on the spindle head so that the incident laser light enters the effective range of the reflector to meet the detection requirements, such as detecting the linear trajectory of X, Y axis linkage, or Detecting straight lines in the vertical plane, such as the linear trajectory of XZ, YZ, and XYZ axis linkage, requires manual and repeated adjustment of the position of the clamping mirror on the main shaft, which has low adjustment efficiency and accuracy, which is not conducive to industrial automation

Method used

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  • A mirror group fixture for precision testing of CNC machine tools
  • A mirror group fixture for precision testing of CNC machine tools
  • A mirror group fixture for precision testing of CNC machine tools

Examples

Experimental program
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Effect test

Embodiment 1

[0027] The present invention is realized through the following technical solutions, as Figure 1-Figure 6 As shown, a mirror group fixture 7 for precision testing of a CNC machine tool includes a machine bed 1, a moving unit 2 installed on the machine bed 1, a swing unit installed on the side of the moving unit 2 close to the machine bed 1, And the mirror group unit installed on the side of the swing unit close to the machine bed 1; the mirror group unit includes a mirror group fixture 7 connected to the swing unit, and a mirror 8 installed on the mirror group fixture 7.

[0028] It should be noted that, through the above improvements, the mobile unit 2 can move relative to the machine bed 1 in the X-axis direction, the Y-axis direction and the Z-axis direction; since the mobile unit 2 is connected with the mirror group unit through the swing unit, thus By controlling the movement of the moving unit 2, the movement of the mirror group unit is realized; the swing unit performs ...

Embodiment 2

[0030] This embodiment is further optimized on the basis of the above embodiments, such as figure 2 As shown, further, in order to better realize the present invention, the mirror group fixture 7 includes a clamping rod 11 connected to the swing unit, a mounting plate 12 installed on the side of the clamping rod 11 away from the swing unit, and mounted on The mounting plate 12 is away from the side of the clamping rod 11 and is used for mounting the reflector group mounting post 13 of the reflector 8 .

[0031] Further, in order to better realize the present invention, Figure 4 As shown, the side of the mirror group mounting post 13 away from the mounting plate 12 is provided with a first mounting groove B1, and the surrounding sides of the mirror group mounting post 13 are provided with a second mounting groove B2 and a third mounting groove B3 ; The bottom of the second mounting groove B2 is arranged parallel to the side of the mirror group mounting column 13, the third m...

Embodiment 3

[0042] This embodiment is further optimized on the basis of the above embodiments, such as figure 1 As shown, further, in order to better realize the present invention, the number of the mirror group mounting posts 13 is four and they are evenly mounted on the side of the mounting plate 12 away from the clamping rod 11 .

[0043] Further, in order to better realize the present invention, the moving unit 2 includes two X-axis moving support frames that are perpendicular to the side of the machine bed 1 near the mirror group unit and are slidably connected with the machine bed 1. The connecting rod 4 between the X-axis moving support frames and the Z-axis supporting frame slidingly installed on the connecting rod 4 and moving along the Y-axis direction; the two X-axis moving supporting frames are arranged in parallel.

[0044] Further, in order to better realize the present invention, the Z-axis support frame includes a slider 3 that is slidably installed on the connecting rod 4...

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Abstract

The invention discloses a fixture of a mirror group for precision testing of a numerically controlled machine tool, which comprises a machine bed, a moving unit installed on the machine bed, a swing unit installed on the side of the move unit close to the machine bed, and a swing unit installed close to the machine bed. A mirror group unit on one side of the machine bed; the mirror group unit includes a mirror group fixture connected to the swing unit, and a mirror installed on the mirror group fixture. The invention can effectively reduce the operation of frequent replacement of the reflector group due to the change of the measured target axis during the detection process of the geometric accuracy of the translational axis of the machine tool, and at the same time reduce the clamping error caused by the adjustment of the spatial pose of the reflector group. It is convenient to detect and identify the geometric accuracy of the translation axis of the machine tool.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing design and the technical field of testing instruments, in particular to a mirror group fixture for precision testing of numerically controlled machine tools. Background technique [0002] The main purpose of machine tool error detection and compensation is to improve the geometric accuracy of the machine tool. Reasonable use of error detection tools and error identification methods can effectively improve the geometric accuracy of the translation axis of multi-axis CNC machine tools. At present, laser interferometers are widely used as a tool for error detection. The entire detection system consists of a laser emitter, a reflector, an interference mirror, a mounting mirror handle, a magnetic base and a laser emitter tripod. Existing misidentification methods based on laser reflectometers at home and abroad, such as 9-line method, 12-line method, 14-line method, and 15-line method, except fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q17/24G01B9/02G01B11/00G01B11/02
CPCB23Q17/2452G01B9/02029G01B11/00G01B11/02
Inventor 陈云李杰胡金龙冯超钰郭瑞华
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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