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Laser focus test and laser energy assessment device

A laser energy and focus testing technology, applied in testing optical performance and other directions, can solve the problems of high energy measurement cost of precision instruments, difficulty in confirming the optimal welding focal length, inaccurate visual inspection of laser welding focal length, etc., and achieve high practical value and promotion significance. , The effect of shortening the confirmation time and improving the debugging efficiency

Inactive Publication Date: 2016-03-02
TIANJIN LISHEN BATTERY
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a laser focus test and laser energy evaluation device to solve the technical problems of inaccurate visual measurement of laser welding focal length, high cost of precision instrument energy measurement, and difficulty in confirming the optimal welding focal length in the prior art

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  • Laser focus test and laser energy assessment device
  • Laser focus test and laser energy assessment device
  • Laser focus test and laser energy assessment device

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Embodiment Construction

[0016] Below, the substantive features and advantages of the present invention will be further described in conjunction with examples, but the present invention is not limited to the listed examples.

[0017] see Figure 1-3 As shown, a laser focus test and laser energy evaluation device includes a substrate 1, the substrate has an inclined surface 10 with a preset angle and a reference bottom surface for contact with the welding plane, and the inclined surface is provided with a A test plate 3 for laser energy evaluation by laser dotting, the inclined surface is provided with a scale 4 for measuring the distance of different laser dots and calculating the moving distance of the laser focus; the scale is aligned parallel to the test plate and arranged on the inclined face.

[0018] Preferably, the reference bottom surface is in contact with the lower end of the inclined surface 10 and forms a preset angle.

[0019] Further, the whole of the base body is in the shape of a rig...

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Abstract

The invention relates to a laser focus test and laser energy assessment device. The device comprises a base body, and the base body is provided with an inclined plane having a preset angle and a reference bottom face for contacting a welding plane; the inclined plane is provided with a test sheet material for performing a laser energy assessment in a laser dotting manner, and a scale ruler for measuring different laser dotting distances and calculating a laser focus moving distance; and the scale ruler and the test sheet material are disposed on the inclined plane in a parallel and aligned manner. The device can perform a laser focus verification test, and also can perform laser energy assessments at different laser focuses; operation of the device is relative concise and convenient, verification time of a focus position can be greatly shortened, and, through comparison of different focus laser energy change conditions, the best welding focus is determined according to the change conditions; and the device has high safety while being used, and is especially suitable for laser equipment focus adjustment and laser energy assessment analyses at the different focuses.

Description

technical field [0001] The invention belongs to the technical field of laser welding, and in particular relates to a laser focus test and laser energy evaluation device. Background technique [0002] Laser welding uses a focusable laser beam as the welding energy source. When the high-intensity laser is irradiated on the surface of the material to be welded, part of the light energy will be absorbed by the material and converted into heat energy, which will melt the material and achieve the purpose of welding. [0003] Focusing is usually used to condense the laser during welding. In order to maintain sufficient power density during welding, the focus position is very important. Changes in the relative position of the focal point and the workpiece surface directly affect the width and depth of the weld. Generally, it is through empirical visual inspection or instrument and equipment inspection. The focus is not well determined, the change rule of focal length and welding e...

Claims

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Application Information

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IPC IPC(8): G01M11/02
CPCG01M11/02
Inventor 陈建民邱慧敏
Owner TIANJIN LISHEN BATTERY
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