Focus control method and focus control system
A control method and control system technology, applied in the field of focus control method and focus control system of laser marking machine, to achieve the effect of avoiding frequent movement
Active Publication Date: 2019-12-10
HANS LASER TECH IND GRP CO LTD
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Problems solved by technology
[0003] Based on this, it is necessary to provide a focusing control method and a focusing control system for the problem that manual focusing is required after the marking plane moves
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[0032] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the invention is for the purpose of describing specific embodiments only, and is not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the ...
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The invention relates to a focusing control method. The focusing control method includes calibration processes and focusing processes. The calibration processes include determining reference marking planes and an original point location of a focusing unit; shifting a marking plane, adjusting the location of the focusing unit to allow a focal point of laser beams to fall onto the shifted marking plane and acquiring displacement functional relations of the focusing unit, which is shifted along with the marking plane, according to displacement of the marking plane relative to the reference marking planes and displacement of the focusing unit relative to the original point location. The focusing processes include acquiring first displacement of the marking plane relative to the reference marking planes; computing the first displacement according to the displacement functional relations if the first displacement exceeds first set values and does not exceed second set values so as to obtainsecond displacement, and transmitting the second displacement to a driving unit; driving the focusing unit to move by the aid of the driving unit under the control and stopping the driving unit from driving the focusing unit under the control if the quantity of movement of the focusing unit is equal to the second displacement. The first displacement is monitored by a distance measuring unit. The focusing unit is required to be shifted relative to the original point location by the second displacement.
Description
technical field [0001] The invention relates to the technical field of laser marking machines, in particular to a focusing control method and a focusing control system of a laser marking machine. Background technique [0002] Currently, CO 2 The front-focus laser marking machine uses a linear three-dimensional focusing system to realize the need for large-scale marking and meet the requirements of continuously improving accuracy, increasing processing size range and improving processing efficiency. Traditional CO 2 The focus control method of the front focus laser marking machine is mainly mechanical handwheel adjustment or electric handwheel / button adjustment. These two methods require an external focusing handwheel or focusing control panel, which not only takes up space, but also makes it difficult to adjust if the handwheel is installed at a slightly higher position or the distance between the equipment is too small. It is often necessary to change the mechanical desig...
Claims
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IPC IPC(8): B23K26/046
CPCB23K26/046
Inventor 陶权任宁周刚曾庆升高云峰
Owner HANS LASER TECH IND GRP CO LTD