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Laser scale light path regulating device and method

A technology of optical path adjustment and laser ruler, applied in metal processing mechanical parts, measuring/indicating equipment, metal processing equipment, etc., can solve the problems of inconsistent data, easy thermal expansion, high cost, etc., and achieve the effect of reducing installation and simple operation

Pending Publication Date: 2017-11-21
KEDE NUMERICAL CONTROL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, conventional linear encoders are difficult to mount accurately on long rails, are susceptible to thermal expansion, and are costly as they increase in length
[0005] Grating rulers have a certain degree of accuracy. Generally, manufacturers use laser interferometers to detect factory-made products, but they use special guide rails as benchmarks for detection. If the guide rails you install have certain deviations, the data It is normal to be inconsistent, and there will be mechanical errors in the spring in the reading head above the grating ruler

Method used

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  • Laser scale light path regulating device and method
  • Laser scale light path regulating device and method
  • Laser scale light path regulating device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 and figure 2 As shown, a laser ruler optical path adjustment device includes an adjustment housing 1, an adjustment bracket 2, a laser light source device 3, a fixing ring 4 and a silicone ring 5;

[0043] The two ends of the laser light source device 3 are respectively nested with a fixed ring 4, and the two ends of the adjustment bracket 2 are engaged and connected with the fixed ring 4 respectively;

[0044] The laser light source device 3 is matched in the adjustment bracket 2, the adjustment bracket 2 is fixed in the adjustment housing 1 by a screw 6, and the adjustment housing 1 is connected with the adjustment bracket 2 by a screw 6;

[0045] It also includes a top wire 7, the adjustment housing 1 above the highest point of the laser light source device 3 is provided with a top wire hole 8, and the top wire 7 is threaded in the top wire hole 8;

[0046] The silicone ring 5 is set on the fixing ring 4 .

[0047]Further, in the above technical ...

Embodiment 2

[0055] Such as figure 1 and figure 2 As shown, a laser ruler optical path adjustment method, including the laser ruler optical path adjustment device, comprises the following steps:

[0056] S1: 5 silicone rings are placed on the fixing ring 4, and the two fixing rings 4 are respectively placed on both ends of the laser light source device 3, and the two fixing rings 4 are respectively engaged and connected to the grooves 24 at both ends of the adjustment bracket 2, Furthermore, the laser light source device 3 is clearance-fitted in the adjustment bracket 2;

[0057] S2: the adjustment bracket 2 is connected to the adjustment housing 1 through the screw 6 on the top of the adjustment housing 1;

[0058] S3: The top wire 7 is threadedly connected to the adjustment housing 1, and the lower end of the top wire 7 passes through the adjustment housing 1 and contacts the laser light source device 3;

[0059] S4: Adjust the positioning of the laser light source device 3 by adjust...

Embodiment 3

[0070] The present invention mainly aims to provide a device and method for adjusting the optical path of a laser ruler. Due to mounting constraints, most linear encoders are usually “hidden” inside the positioning stage at some distance from the workpiece, which can introduce an additional source of error (known as Abbe error). Laser rulers have no physical rulers and can be freely mounted to directly measure the location of points of interest. The measurement benchmark of the laser ruler is the internationally recognized HeNe laser wavelength. Its wavelength length is 633nm, which is much smaller than the pitch of typical fine gratings. Traditional laser interferometry systems use separate laser heads, interferometers, retroreflectors, and separate detector devices. The laser beam travels between these individual components through a complex network of beam splitters and beam steering mirrors, making the overall system large and complex, difficult and time-consuming to ins...

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PUM

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Abstract

The invention discloses a laser scale light path regulating device and method. The laser scale light path regulating device comprises a regulating housing, a regulating bracket, a laser light source device, fixed rings and a silica gel ring, wherein the two ends of the laser light source device are each separately sleeved by one fixed ring; the two ends of the regulating bracket are in blocking connection with the fixed rings separately; the laser light source device is matched in the regulating bracket; the regulating bracket is fixedly arranged in the regulating housing through a bolt; and the regulating housing is connected with the regulating bracket through a bolt. With the adoption of the technical scheme, the laser scale light path regulating device and method effectively reduces mounting, collimating and maintaining time, so that the whole system is simple, and is convenient to operate; when a machine tool uses a laser scale for a long time, influences, as a result of vibration and temperature changes of the machine tool, are caused on a light source inside the laser scale.

Description

technical field [0001] The invention belongs to the technical field of optical equipment accessories, and in particular relates to a laser ruler optical path adjustment device and method. Background technique [0002] According to industry standards, laser interferometers must be used to test and calibrate CNC machine tools from the factory and transported to customers. It is a pity that many machine tool manufacturers in China do not have laser interferometers, or have laser interferometers. A test is carried out at the factory, and the frequency of use is seldom, and when it is transported to the customer, this test item is subtracted. As a result, I conducted investigation and analysis. There are three reasons: first, the high price of the laser interferometer, which many companies cannot accept; second, the laser interferometer is bulky, inconvenient and cumbersome to use; Some enterprises have insufficient awareness of machine tool precision testing. [0003] Originat...

Claims

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Application Information

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IPC IPC(8): B23Q17/24
CPCB23Q17/2495
Inventor 陈虎隋继平李文庆李俊张继德陈连君
Owner KEDE NUMERICAL CONTROL CO LTD