A height adjustment system and height adjustment method of a laser cutting head
A laser cutting head and height adjustment technology, which is applied in laser welding equipment, metal processing equipment, welding equipment, etc., can solve the problems of poor consistency of control methods, achieve excellent height control performance, avoid control conflicts, and avoid cumbersome operations. Effect
Active Publication Date: 2019-06-14
HANS LASER TECH IND GRP CO LTD +2
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to provide a height adjustment system of the laser cutting head to solve the problem of poor consistency of the existing control methods in view of the above-mentioned defects of the prior art
[0006] The technical problem to be solved by the present invention is to provide a method for adjusting the height of the laser cutting head to solve the problem of poor consistency of the existing control methods in view of the above-mentioned defects of the prior art
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[0041] Now in conjunction with the accompanying drawings, the preferred embodiments of the present invention will be described in detail.
[0042] Such as figure 1 As shown, the present invention provides a preferred embodiment of a height adjustment system.
[0043] A height adjustment system of a laser cutting head 30, including a height adjustment shaft 20 connected to the laser cutting head 30, the height adjustment system also includes a sensor 11, a preamplifier 12, a signal conditioner 13 and a numerical control unit 14, the sensor 11 , preamplifier 12, signal conditioner 13 and numerical control unit 14 are connected successively, and this numerical control unit 14 is connected with height adjustment shaft 20, specifically described as follows:
[0044] The sensor 11 detects the capacitance value between the nozzle of the laser cutting head 30 and the surface of the processed workpiece; the preamplifier 12 is connected with the sensor 11 and the signal conditioner 13 ...
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The invention relates to the field of laser numerical control systems, in particular to a height adjusting system for a laser cutting head. The height adjusting system comprises a sensor, a pre-amplifier, a signal conditioner and a numerical control unit, wherein the sensor is used for detecting the capacitance value between a nozzle of the laser cutting head and the surface of a machined workpiece; the pre-amplifier is used for converting the capacitance value into an oscillation frequency signal; the signal conditioner is used for processing the oscillation frequency signal to obtain a distance signal for the distance between the nozzle of the laser cutting head and the surface of the machined workpiece; and the numerical control unit is used for adjusting the distance between the nozzle of the laser cutting head and the surface of the machined workpiece by controlling a height adjusting shaft according to the distance signal. The invention further relates to a height adjusting method. The height adjusting shaft is controlled by a numerical control system, and the control right of the height adjusting shaft does not need to be switched, so that control right conflict is avoided; and operations including calibration, height follow-up and the like can be directly conducted on an operation interface of the numerical control system instead of being conducted in an electric cabinet, so that laser cutting quality and machining efficiency are improved.
Description
technical field [0001] The invention relates to the field of laser numerical control systems, in particular to a height adjustment system of a laser cutting head and a height adjustment method thereof. Background technique [0002] In the control of laser cutting machine tools, due to factors such as the fluctuation and deformation of the workpiece, the position of the laser focus and the surface of the workpiece will change and affect the cutting effect. Therefore, to ensure a good cutting effect, it is necessary to control the gap between the nozzle and the workpiece. A constant value, the traditional cutting head height adjustment method is to control the Z axis by an independent height adjuster, while other axes are controlled by the motion control card or numerical control system, or the Z axis control signal is given by the independent height adjuster , to be executed by the numerical control system. [0003] Therefore, the above-mentioned control method will lead to ...
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IPC IPC(8): B23K26/08B23K26/38
CPCB23K26/0869B23K26/38
Inventor 陆渊肖球温旺古封雨鑫陈燚高云峰
Owner HANS LASER TECH IND GRP CO LTD