Laser light transmittance testing device and testing method thereof

A technology of testing device and optical detection device, applied in measurement device, transmittance measurement, material analysis by optical means, etc., can solve the problems of low processing efficiency and complicated operation, and achieve the effect of rapid acquisition and simple and fast testing method.

Inactive Publication Date: 2019-07-19
HANS LASER TECH IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Operators need to go through multiple adjustments to determine the appropriate welding parameters. The operation is cumbersome and the processing efficiency is low.

Method used

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  • Laser light transmittance testing device and testing method thereof
  • Laser light transmittance testing device and testing method thereof
  • Laser light transmittance testing device and testing method thereof

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Embodiment Construction

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by 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.

[0038] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0039] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations...

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PUM

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Abstract

The invention provides a laser light transmittance testing device and testing method thereof. The laser light transmittance testing device comprises a laser light source, which is used for emitting alaser beam of a specified wavelength; a optical component, which comprises a reflecting lens arranged opposite to the laser light source and an attenuation sheet arranged opposite to the reflecting lens and is used for weakening the energy density of the laser beam to be within a preset detection range; a loading device, which is arranged opposite to the attenuation sheet and is used for placing ameasured object with the light transmittance to be measured; and a light detection device, which is used for calculating the energy density of the laser beam and the light transmittance of the measured object. Compared with the prior art, the laser light transmittance testing device provided by the invention uses the laser light source with the same wavelength as a welding light source, the lightemitting characteristic is the same as the welding light source, and the measured light transmittance of the plastic product has more reference significance for the subsequent welding process. Meanwhile, the testing method of the laser light transmittance testing device is simple and quick, and the light transmittance of the plastic product can be quickly obtained.

Description

technical field [0001] The invention belongs to the field of laser welding, and more specifically relates to a laser light transmittance testing device and a testing method thereof. Background technique [0002] Laser welding uses the heat generated by a laser beam to melt the plastic contact surfaces, thereby bonding thermoplastic sheets, films or molded parts together. When using laser welding to weld plastic weldments, the light transmittance of the plastic is crucial to the quality of the weld. [0003] However, the light transmittance properties of plastics are affected by injection molding and upstream of injection molding. Before laser welding, it is necessary to test the light transmittance of the plastic weldment to be welded to ensure the welding quality. The existing light transmittance testing device is not specially adapted for laser welding, and its working wavelength is often in the range of 380-760nm, which is different from the working wavelength of the la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/59
CPCG01N21/5907
Inventor 刘维波何亚东陶成军苏长鹏王义龙王瑾高云峰
Owner HANS LASER TECH IND GRP CO LTD
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