Focusing method of focusing device

A technology of a main control board and a stepping motor is applied in the focusing field of focusing devices, which can solve the problems of reduced efficiency, inconvenient adjustment, and low precision of mechanical manual knob adjustment methods.

Inactive Publication Date: 2012-02-29
HANS LASER TECH IND GRP CO LTD
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  • Abstract
  • Description
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Problems solved by technology

The precision of the mechanical manual knob adjustment method is not high, it is inconvenient and time-consuming to adjust, and there is no visual dis

Method used

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  • Focusing method of focusing device
  • Focusing method of focusing device

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Embodiment Construction

[0007] refer to figure 1 , this focusing device is used in CO2 laser marking machine, this focusing device is left and right movement control device, this focusing device is composed of main control board 1, button 2, high-precision distance sensor 3, serial port communication 4, host computer software 5. It consists of LCD display 6, stepper motor driver 7, stepper motor 8 and optical lens device 9. This focusing device sets stepper motor 8 subdivisions by toggle switch, and calculates stepper motor 8 step lengths (that is, stepper motor step distance size).

[0008] There are two kinds of focal length adjustments in this focusing device. The first focusing method is to input a specific value in the host computer software 5 and adjust through the serial port communication 4, which is convenient and efficient to operate. The specific adjustment method is as follows: through the host computer software 5 Set the distance value to be adjusted, the upper computer software 5 trans...

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Abstract

The invention discloses a focusing method of a focusing device which is applied to a carbon dioxide (CO2) laser marking machine. The focusing device comprises a device system and a device system control system. A specific adjusting distance value is inputted through a keystroke, a pulse width modulation (PWM) pulse is outputted by a main control panel according to a set value to control a stepper motor driving device, and the stepper motor driving device drives a stepper motor to drive an optical lens holding device to move so as to change a focus; or the specific adjusting distance value is inputted through host computer software, the main control panel is communicated with the host computer software through a serial port, the main control panel outputs the PWM pulse according to the set value to control the stepper motor driving device, and the stepper motor driving device drives the stepper motor so as to drive the optical lens holding device to move and change the focus. The focusing device system has the characteristics of fast response speed, high precision, convenience in operation, high efficiency and the like.

Description

【Technical field】 [0001] The invention relates to a focusing method using a focusing device of a CO2 laser marking machine. 【Background technique】 [0002] In the application of the focusing device of the existing CO2 laser marking machine, a mechanical manual knob adjustment method is adopted. The precision of the mechanical manual knob adjustment method is not high, it is inconvenient and time-consuming to adjust, and there is no visual display of the specific adjustment distance. In addition, every time the focus is adjusted, the previous steps must be repeated, which will reduce the efficiency. Therefore, the mechanical manual knob adjustment method is insufficient in the application of the focusing device of the CO2 laser marking machine, and the automatic focusing device plays an increasingly important role in the application of the focusing device of the CO2 laser marking machine. 【Content of invention】 [0003] The invention provides a focusing method for the foc...

Claims

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Application Information

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IPC IPC(8): G02B7/00B41J2/435
Inventor 何海鹏周刚高云峰
Owner HANS LASER TECH IND GRP CO LTD
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