JP4626561B2 - Laser marking device - Google Patents

Description

  The present invention relates to a laser marking device that notifies an operator that the installation angle is equal to or greater than a predetermined angle when the laser marking device is installed.

  2. Description of the Related Art Conventionally, as a means for marking a vertical line and a horizontal line at a construction site, a laser marking device for projecting a linear image by a laser beam onto an indoor wall surface and ceiling surface has been used. In this type of laser marking device, the laser module that emits the laser beam for marking is suspended inside the laser marking device by a gyro structure, and the level of the laser module is measured with a sensor. The laser light irradiation direction is appropriately maintained by a method of detecting and driving the motor based on the detection signal to automatically control the level of the laser module unit. For this reason, even if the laser marking device is installed at a slight inclination on the floor surface, the irradiation direction of the laser beam is automatically corrected to be vertical and horizontal, and the marking operation can be performed.

However, there is a limit to the angle that can be automatically corrected, and when the installation angle of the laser marking device is larger than a predetermined angle, the laser beam cannot be vertical or horizontal, so the marking operation cannot be performed. . On the other hand, the laser marking device is equipped with a level that seals the liquid and a small amount of bubbles in a transparent small container and measures the level according to the position of the bubbles. By adjusting the lengths of the three support legs that support the laser marking device, the laser marking device installation angle is made smaller than a predetermined angle so that the laser beam can be automatically corrected. . Further, for example, Patent Document 1 discloses a laser marking device that detects an installation angle of a laser marking device with a sensor and flashes a marking laser to notify an operator when the angle is equal to or greater than a predetermined angle. Has been.
JP-A-11-281357

  However, in a laser marking device that is only equipped with a level, there is a problem that it is troublesome because the level must be looked into from directly above, and it is difficult to read in a dark usage environment. . Further, even in the laser marking device as shown in Patent Document 1 described above, it is only notified that the installation angle is equal to or greater than a predetermined angle, and is not notified to the over-inclination direction and the degree of over-inclination. For example, when three support legs are provided, there is a problem that it is not easy to know how much the length of each support leg should be adjusted.

  The present invention has been made to solve the above-described problem, and when the installation angle of the laser marking device is equal to or larger than a predetermined angle, a notification is given so that the inclination direction and the degree of over-inclination can be easily recognized. An object is to provide a laser marking device.

In order to achieve the above-mentioned object, the invention of claim 1 is characterized in that one or a plurality of laser diodes that emit a laser for inking and a device including the laser diode are supported on an installation surface, In a laser marking device having at least three support legs for adjusting the position, a pedestal supported by the support legs, and an over-tilt detection unit provided on the pedestal and detecting an over-tilt of the pedestal An over-inclination notifying means for informing the direction of over-inclination of the gantry, and a horizontal driving unit provided on the gantry and supporting a horizontal control stage having the laser diode and adjusting the inclination of the horizontal control stage; A horizontal sensor provided on the horizontal control stage for detecting the level of the horizontal control stage; and the water so that the horizontal control stage is leveled based on a detection signal of the horizontal sensor. A drive unit that controls the drive unit, and that activates the over-tilt notification unit when it is determined that the tilt angle of the gantry is at least a predetermined angle based on a detection signal of the over-tilt detection unit; The over-inclination notification means includes a plurality of light-emitting elements, each light-emitting element is disposed so as to indicate an over-inclination direction, and the light-emitting elements are provided at positions corresponding to the support legs. It is characterized by being.

According to a second aspect of the invention, the laser marking device of claim 1, wherein the over-inclination informing means is for informing the excessive degree of inclination on the basis of the detection signal of the excessive inclination detectors.

According to a third aspect of the present invention, in the laser marking device according to the first or second aspect , the over-inclination notification means determines the over-inclination degree from at least one of the blinking cycle, the emission color, and the light amount of the light-emitting element. The notification is made by one element.

According to a fourth aspect of the present invention, in the laser marking device according to any one of the first to third aspects, the over-tilt notifying unit reports an over-tilt by blinking of a laser by the laser diode, and the The over-tilt degree is notified by the blinking cycle of the laser.

  According to the first aspect of the invention, when the installation angle of the device is larger than a predetermined angle that can be automatically corrected, the inclination direction is notified, so that the inclination direction can be easily recognized.

Further, since the light-emitting elements arranged in the over-inclination direction flashes can further easily recognize the inclination direction.

In addition, since the light emitting element provided at the position corresponding to the support leg blinks, it is possible to easily correct the excessive inclination.

According to the invention of claim 2 , since the inclination direction and the inclination degree are notified, the inclination direction and the inclination degree can be easily recognized.

According to the invention of claim 3 , since the light emitting element notifies the inclination direction and the inclination degree, the inclination direction and the inclination degree can be recognized more easily.

According to the fourth aspect of the invention, since the over-inclination and the over-inclination degree are notified also by the blinking of the laser and the blinking cycle, the over-inclination and the over-inclination degree can be easily recognized.

(First embodiment)
A laser marking device according to a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows the configuration of the laser marking device, and FIG. 2 shows the appearance of the laser marking device. The laser marking device supports a horizontal control stage 1 having one or a plurality of laser diodes 11 that emit a marking laser and a horizontal sensor 12 that detects a level and a tilt direction, and the horizontal control stage 1. A horizontal drive unit 2, a control unit 3 that controls the operation of the entire device, an over-tilt detection unit 5 that detects the installation angle of the device, and an over-tilt notification unit 6 that reports that the device is over-tilted. I have.

  The laser marking device includes three support legs 7 and a gantry 4 supported by the support legs 7, and the gantry 4 includes an over-tilt detection unit 5, an over-tilt notification unit 6, and a horizontal driving unit 2. ,have. The laser marking device is installed in the marking work place by the support leg 7 and is leveled by adjusting the length of the support leg 7. The over-inclination detection unit 5 is a mechanism that detects, for example, that the sensor is in contact with the ring while suspending the sensor in the center of the ring so that the installation angle of the device is larger than a predetermined angle. , But not level and tilt direction. The excessive inclination notifying unit 6 has four LEDs 61 to 64 arranged in four orthogonal directions. The horizontal drive unit 2 supports the horizontal control stage 1 with three drive shafts 21. The horizontal sensor 12 is, for example, a mechanism that measures liquid level by sealing a liquid and a small amount of bubbles in a transparent small container, transmitting light to the center, and detecting the transmitted light with the sensor.

  Next, the operation of the laser marking device configured as described above will be described. The horizontal sensor 12 detects the level and tilt direction of the horizontal control stage 1 and sends a detection signal to the control unit 3. Based on the detection signal, the control unit 3 automatically drives the motor (not shown) of the horizontal drive unit 2 to change the protruding height of the three drive shafts 21 so that the horizontal control stage 1 becomes horizontal. To do. The laser light emitted from the laser diode 11 is irradiated vertically and horizontally, and the marking operation is performed. The angle that can be controlled by the horizontal drive unit 2 is limited, and when the installation angle of the device is larger than a predetermined angle, the horizontal control stage 1 can only be tilted to a predetermined angle in the automatic correction, and the horizontal control stage 1 Cannot be controlled horizontally.

  When the installation angle of the device is larger than a predetermined angle that can be automatically corrected, the over-inclination detection unit 5 transmits a detection signal to the control unit 3. At this time, the horizontal control stage 1 is not horizontal, and the horizontal sensor 12 transmits the detected level and tilt direction detection signals to the control unit 3. Based on the detection signals from the over-inclination detection unit 5 and the horizontal sensor 12, the control unit 3 causes the over-inclination notification unit 6 to light the LED in the inclination direction, and notifies the over-inclination and the inclination direction. As used herein, “over-tilt” refers to a state in which the vehicle is tilted beyond a predetermined angle that can be automatically corrected. Here, for example, the LED 61 is lit when tilted in the direction of the LED 61, and the LED 61 and LED 62 are lit when tilted in the direction between the LED 61 and the LED 62. By this lighting, the operator can easily know that it is necessary to correct the inclination of the laser marking device.

(Second Embodiment)
A laser marking device according to a second embodiment of the present invention will be described with reference to FIG. FIG. 3 is a part of the laser marking device according to the second embodiment and schematically shows the arrangement of the LEDs. The configuration of the laser marking device according to the second embodiment is different from that of the first embodiment in the number of LEDs and the arrangement location of the over-tilt notification unit 6. In the first embodiment, four LEDs are arranged in four orthogonal directions, but in the second embodiment, the three LEDs 65 to 67 are arranged at positions corresponding to the support legs 7. .

Next, the operation of the laser marking device according to this embodiment will be described. When the installation angle of the device is larger than a predetermined angle that can be automatically corrected, as in the first embodiment described above, the control unit 3 causes the over-inclination notification unit 6 to turn on the LED in the incline direction. The presence and the inclination direction are notified. Here, for example, when they are inclined in the direction of the LED 65 is LED 65 is lit, when tilted in a direction between the LED 65 and LED 66 are LED 65 and LED 66 is turned on. And since the length of the support leg corresponding to LED which has lighted should just be adjusted, the operator can make the installation angle of an apparatus smaller than a predetermined angle easily.

  The present invention is not limited to the configurations of the various embodiments described above, and various modifications can be made without departing from the spirit of the invention. For example, in the above description, lighting using an LED is given as the notification method. However, various notification methods such as display using liquid crystal or organic EL, and sound can be employed.

  Further, in the laser marking device of the first or second embodiment, the over-inclination notification may blink the LED according to the inclination angle. A laser marking device according to a modification in which the LED blinks will be described with reference to FIG. FIG. 4 shows the relationship between the tilt angle of the laser marking device and the blinking frequency of the LED. When the inclination angle is 3 degrees, which is the automatic correction angle, the LED in the direction in which the laser marking device is inclined blinks at a frequency of 1 Hz, and the blinking frequency increases as the inclination angle increases. Moreover, you may change the luminescent color from blue to red, for example with a tilt angle using LED from which luminescent color changes. As a result, the operator can know the degree of inclination as well as the inclination direction, and can easily correct the inclination of the laser marking device.

  Further, the over-inclination notification may be notified by blinking the laser light for inking, or the blinking frequency may be increased as the inclination angle increases. Since it is notified by laser light together with the LED of the over-inclination notification unit 6, the operator can more easily sense the over-inclination of the laser marking device.

  Moreover, you may use the horizontal sensor which can detect a level and the inclination direction as the excessive inclination detection part 5. FIG. Even if the control unit 3 does not obtain the detection signal of the level and the inclination direction from the horizontal sensor 12 of the horizontal control stage 1, the control unit 3 makes the over-inclination notification unit 6 notify only by the detection signal from the over-inclination detection unit 5. Therefore, it is possible to simplify the control method for over-inclination notification.

  Further, the over-inclination notification unit 6 may notify the completion of the horizontal control of the horizontal control stage 1. Based on the detection signal from the horizontal sensor 12, the control unit 3 determines that the horizontal control has been completed when the level becomes equal to or less than a predetermined angle. Notify completion of. Since the completion of the horizontal control is notified by the LED of the over-inclination notification unit 6, a dedicated LED for notifying the completion of the horizontal control is not required, and the cost can be reduced.

The block diagram of the laser marking device which concerns on the 1st Embodiment of this invention. External view of the laser marking device. The partial external view of the laser marking device which concerns on the 2nd Embodiment of this invention. The relationship figure of the inclination angle and LED blinking frequency in the laser marking device which concerns on the modification of the said 1st or 2nd embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Horizontal control stage 2 Horizontal drive part 3 Control part 4 Base 5 Over-tilt detection part 7 Support leg 11 Laser diode 12 Horizontal sensor 61 LED
62 LED
63 LED
64 LED
65 LED
66 LED
67 LED

Claims (4)

One or a plurality of laser diodes that emit a laser for inking, and at least three support legs for supporting a device including the laser diode on an installation surface and adjusting the installation level of the device. In the laser marking device
A pedestal supported by the support legs;
An over-tilt detector provided on the gantry and detecting an over-tilt of the gantry;
Over-inclination notification means for informing the direction of over-inclination of the gantry;
A horizontal driving unit that is provided on the gantry and supports the horizontal control stage having the laser diode and adjusts the inclination of the horizontal control stage;
A horizontal sensor provided on the horizontal control stage for detecting the level of the horizontal control stage;
The horizontal drive unit is driven and controlled so that the horizontal control stage is horizontal based on the detection signal of the horizontal sensor, and the tilt angle of the gantry is set at a predetermined level based on at least the detection signal of the over-tilt detection unit. A control unit that activates the over-inclination notification means when it is determined that the angle is greater than or equal to an angle ,
The over-inclination notification means has a plurality of light-emitting elements, and each light-emitting element is disposed so as to indicate an over-inclination direction,
The laser marking device, wherein the light emitting element is provided at a position corresponding to the support leg . The over inclined notifying means, laser marking device according to claim 1, wherein the notifying the excessive degree of inclination on the basis of the detection signal of the excessive inclination detectors. The over inclined notifying means, blinking period of the light-emitting element over the inclined degree, emission color, and laser marking as claimed in claim 1 or claim 2, characterized in that for informing at least one element of the light quantity Dispenser. The over inclined notifying means notifies the over-inclination by laser flashing by the laser diode, and any one of claims 1 to 3, characterized in that for informing the excessive inclination degree by flashing cycle of the laser Laser marking device as described in.

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