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Overlong workpiece linearity detection device driven by composite micro-feeding axis

A detection device and shaft-driven technology, applied in measuring devices, optical devices, instruments, etc., can solve problems such as large limitations, and achieve the effects of high accuracy, no transmission error, and fast start-up.

Inactive Publication Date: 2014-12-17
UNIV OF SHANGHAI FOR SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the whole, the accuracy of measuring straightness by laser interferometer is very high, but it requires the measurement signal to be continuous, so if it is directly used to measure the straightness of super-long workpieces, its limitations are very large

Method used

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  • Overlong workpiece linearity detection device driven by composite micro-feeding axis
  • Overlong workpiece linearity detection device driven by composite micro-feeding axis
  • Overlong workpiece linearity detection device driven by composite micro-feeding axis

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0022] like Figure 1 to Figure 3 As shown, the ultra-long workpiece straightness detection device based on the composite micro-feed shaft drive of the present invention includes the test bench bed, the test bench support 4, the data receiving device, the driving device, the numerical control system, the driving unit, and the like.

[0023] The bed of the test bed includes a slide table 22, a guide rail 1, a guide rail bracket 2 and bracket bolts 3. Both sides of the upper side of the bed of the test bench are fixedly connected to the guide rail 1 through the guide rail bracket 2 and the bracket b...

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Abstract

The invention relates to an overlong workpiece linearity detection device driven by a composite micro-feeding axis. A guide rail is fixedly connected to an experiment table lathe bed; the guide rail is connected with a sliding table in a sliding and matching mode; four laser interferometers are arranged on a test table support which is arranged on one side of the guide rail; a drive device consisting of a vertical linear motor and a horizontal linear motor is arranged on the front end surface of the sliding table; reflecting mirrors are respectively arranged on the upper side, the lower side, the left side and the right side of a rotor of the vertical linear motor; the first to fourth laser interferometers are used for respectively reflecting laser beams sent by the first to fourth laser interferometers back to the corresponding laser interferometers through the first to fourth reflecting mirrors; a data control system receives data of the laser interferometers in two directions to acquire deviation directions and deviation amount of the linearity of the guide rail in the two directions; and the data control system transmits mobile signals to a driving unit which transmits pulse signals to the vertical linear motor and the horizontal linear motor, and thus the vertical linear motor and the horizontal linear motor move to correct linearity errors in the vertical and horizontal directions.

Description

technical field [0001] The invention relates to a detection device for the straightness of an ultra-long workpiece, in particular to a detection device and method for the straightness of an ultra-long workpiece driven by a micro-feeding shaft. Background technique [0002] At present, precision machining technology in the world has become one of the main technologies that have developed rapidly in recent years. At present, the detection of ultra-long workpieces has been paid more and more attention by researchers, especially for industrial fields such as railway and aerospace. At present, there are still few detection methods for the straightness of long workpieces, and there are very few detection methods for ultra-long workpieces exceeding 100 meters. There are several typical methods for measuring long workpieces: the patent application number 200810003182.2 proposes a method for measuring the straightness of long products such as rails, beams, bars, etc., which is chara...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/26
Inventor 林献坤丁顺东吴倩倩
Owner UNIV OF SHANGHAI FOR SCI & TECH
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