JP2009042092A - Laser marking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem in a laser marking device which is used widely in recent years, in particular, a leveler of an electric automatic leveling system, when the exactly adjusted leveling accuracy deteriorates due to some external factors, the repairing requires much time and cost because the conventional laser marking device must be returned to its manufacturer so as to be fundamentally readjusted. <P>SOLUTION: The laser marking device includes an inclination detection sensor, a motor drive mechanism for correcting the inclination, a line irradiating part by a laser light source, a control part, and a manual operation part, wherein the leveling reference data are changed by an external manual operation so that the laser marking device is provided with calibration function. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a laser marking device that emits a line-shaped laser beam used when installing civil engineering, architecture, and mechanical devices. And a manual operation unit, and a control unit that controls a motor drive mechanism according to a signal from an inclination detection sensor to automatically level the reference surface of a line irradiation unit horizontally. The present invention relates to a marking device that can easily correct leveling reference data from the outside.

  Recently, in laser marking devices that are widely used, the leveling accuracy that has been precisely adjusted may be distorted due to a large impact on the laser emitting part due to some external factors such as the device falling during transportation and installation. is there. When such a problem occurs, it is necessary to return to the manufacturer and start over from the basic adjustment again, and the repair often requires a lot of time and expense.

As a countermeasure technique, in the laser marking device that vertically supports the laser emission part by a pendulum type gimbal mechanism, a buffer function that prevents the impact from being transmitted to the inside as a method to prevent such problems There is something with.
Actual application 2007-005321 However, the base unit has a motor driving mechanism for correcting tilt, a line irradiation unit and a control unit using a laser light source, and the motor driving mechanism is controlled by the control unit according to a signal of an inclination detection sensor provided in the line irradiation unit. There is no effective countermeasure for the ink marking device that controls and automatically levels the reference surface of the line irradiation unit horizontally.

  The present invention is established under the above-mentioned background. The first means of the present invention includes an inclination detection sensor, an inclination correction motor drive mechanism, a laser light source line irradiation unit, a control unit, and a manual operation unit. In addition, the present invention provides a laser marking device having a calibration function by changing leveling reference data by manual operation from the outside.

  The second means of the present invention provides the laser marking device characterized in that a proximity switch is used in the manual operation section.

  According to a third aspect of the present invention, there is provided the laser marking device characterized in that a remote operation function is enabled in the manual operation unit.

  The best mode for carrying out the present invention includes a motor driving mechanism for correcting tilt, a line irradiation unit using a laser light source, a control unit, and a manual operation unit, and a tilt detection sensor provided in the line irradiation unit. The present invention relates to an inking device that automatically controls the level of the reference surface of the line irradiation unit by controlling the motor drive mechanism by a control unit, and particularly relates to an inking device that can easily correct the leveling function from the outside. is there. The switch used for the manual operation unit is desirably a proximity switch such as a capacitance type or a photoelectric type. Furthermore, a method is also desirable in which the manual operation unit is remotely controlled from a remote place by infrared rays, radio waves, ultrasonic waves, or the like.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a side view showing the structure of an embodiment of the inking device of the present invention, FIG. 2 is a block diagram thereof, FIG. 3 is a schematic layout diagram of a manual operation unit, and FIG. Is a flowchart of the control program. In FIG. 1, portions not related to the present invention such as a cover are omitted. Further, although a side view along the X plane as a vertical plane in a practical state is shown, the side view along the vertical Y plane perpendicular to this has a substantially similar structure. In the following, the subscripts X and Y relate to the aspect of the above description.
In FIG. 1, a plurality of support columns 2 are implanted in a base 1 and supported by a gimbal mechanism 3 attached to the support columns 2 so as to be swingable in an X direction parallel to the paper surface and a Y direction perpendicular to the paper surface. The line irradiation unit 4 is configured so as to irradiate vertical and horizontal laser lines by laser light source units 5 and 6. An arm 7 is implanted below the line irradiation unit 4, and a fork member 8 sandwiching the lower end of the arm 7 can be moved in the left-right direction by a screw member 10 that is rotated by a motor drive mechanism 9 for tilt correction in the X direction. Is provided. In addition, a switch as a manual operation unit 11 is provided at the upper part of the support column 2, and a power supply unit 12 and a control unit 13 are provided on the side surfaces. The control unit 13 generally includes a CPU, a drive circuit, a memory and the like, and the manual operation unit 11 is for enabling calibration work from the outside in the present invention. Reference numeral 14 denotes an inclination detection sensor that is attached to the line irradiation unit 4 and detects the inclination of the reference surface 15 of the line irradiation unit 4 from the horizontal plane. The control unit 13 controls the motor drive mechanism 9 based on a signal from the inclination detection sensor 14. The fork member 8 is moved to the right and left to control the reference surface 15 of the line irradiation unit 4 to be always horizontal. Reference numeral 16 denotes a spring for preventing play (backlash) in the engaged state between the screw member 10 and the fork member 8 and the arm 7.

  In FIG. 2, the control unit 13 drives the X-direction motor drive mechanism 9X and the Y-direction motor drive mechanism 9Y by signals from the X-direction tilt detection sensor 14X and the Y-direction tilt detection sensor 14Y to thereby generate the line irradiation unit 4. The reference surface 15 is always kept horizontal. In the present invention, the manual operation unit 11 is used to calibrate the level of the horizontal reference surface 15.

  In FIG. 3, the manual operation unit 11 includes switches X1 and X2 that adjust the inclination in the X direction, switches Y1 and Y2 that adjust the inclination in the Y direction, and a state setting switch SET. Each switch is preferably a capacitive or photoelectric proximity switch.

The operation of the ink marking device of the present invention configured as described above will be described based on the flowcharts of FIGS. 1, 2, 3 and 4. FIG.
In a normal use state, when the main switch is turned on, the control unit 13 switches the X-direction motor drive mechanism 9X and the Y-direction motor drive mechanism 9Y according to signals from the X-direction tilt detection sensor 14X and the Y-direction tilt detection sensor 14Y. The driving is controlled so that the reference surface 15 of the line irradiation unit 4 is always kept horizontal. Even if the base unit 1 is inclined, the above-described operation controls the reference surface 15 of the line irradiation unit 4 to be always kept horizontal. When it seems that there is a possibility that the level of the reference surface 15 of the line irradiation unit 4 has deviated for some reason, a plurality of filling pipes are used, and this is aligned with the horizontal line. Calibrate if found to be. The accuracy can also be confirmed by checking the accuracy of the vertical line in both XY directions by swinging down.
Press and hold the switch SET while the power is on to enter the calibration mode. In this state, the switches X1, X2, Y1, and Y2 are arbitrarily pressed to drive the X-direction motor drive mechanism 9X and the Y-direction motor drive mechanism 9Y to incline the reference plane 15 of the line irradiation unit 4 in an arbitrary direction, The horizontal reference data can be newly rewritten by pressing the switch SET again when the irradiation line and the level of the filling pipe or the swing down and the vertical irradiation line are matched. This data is stored even when the power is turned off. When the power is turned on again, the data is calibrated with new data without repeating the above operation.
If the horizontal state cannot be set successfully in the calibration operation, the initial data before calibration can be restored by pressing the switch SET for a long time. Further, when it is desired to return to the previous calibration data by a plurality of calibrations, it is possible to return to the previous calibration data by the action of a timer by waiting several seconds without pressing the switch SET to be pressed last.

  In the above calibration operation, the switches SET, X1, X2, Y1, and Y2 are desirably proximity switches that operate only when a capacitive or photoelectric finger approaches. This is to prevent the entire inking device from slightly moving the tilt line and making accurate alignment difficult when pressure is applied when each switch is pressed with a finger.

FIG. 5 is a block diagram showing the configuration of another embodiment of the present invention.
In FIG. 5, the receiving unit 21 is connected to the control unit 13, and the manual operation unit 11 is separated from the inking device main body in a form having a transmitting unit 22 and a power supply unit 23.
In the case of the configuration shown in FIG. 5, in the calibration work, the operator moves away from the inking device and checks the position of the water pipe or swinging down near the irradiation line while checking the position of the motor driving mechanism 9X in the X direction. Since the Y-direction motor drive mechanism 9Y can be driven, the calibration operation can greatly improve the efficiency and accuracy.
The manual operation shown in FIGS. 1, 2, 3, 4 and 5 shows an example, and the details are not limited to the operations described above, and the changes do not depart from the spirit of the present invention. Absent.

As is apparent from the above description, the inking device of the present invention can be calibrated on-site without a professional engineer even if a malfunction occurs in leveling accuracy for some reason. The reliability of the inking process can be greatly improved. Conventionally, in such a case, it has been necessary to return the device to the manufacturer and disassemble it for repair.
The present invention can greatly reduce such time loss, and the industrial effect is extremely remarkable.

It is 1 side view which shows the structure of one Embodiment of this invention. It is a block block diagram which shows the structure of one Embodiment of this invention. It is a schematic arrangement drawing of the manual operation part of one embodiment of the present invention. It is a flowchart of the control program of one Embodiment of this invention. It is a block block diagram which shows the structure of other embodiment of this invention.

Explanation of symbols

1: Base unit 2: Support column 3: Gimbal mechanism 4: Line irradiation unit 5: Laser light source unit 6: Laser light source unit 7: Arm 8: Fork member 9: Motor drive mechanism 10: Screw member 11: Manual operation unit 12: Power supply Part 13: Control part 14: Tilt detection sensor 15: Reference plane 16: Spring 21: Reception part 22: Transmission part 23: Power supply part

Claims (3)

  It has a tilt detection sensor, a motor drive mechanism for tilt correction, a line irradiation unit by laser light source, a control unit, and a manual operation unit, and has a calibration function by changing the leveling reference data by manual operation from the outside. Laser marking device characterized by things.   2. The laser marking device according to claim 1, wherein a proximity switch is used for the manual operation unit.   The laser marking device according to claim 1, wherein a remote operation function is enabled in the manual operation unit.

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