JP2014041016A - Rotation mechanism of laser setting-out apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotation mechanism of a laser setting-out apparatus that dispenses with a recovery operation required for a conventional art and can be used immediately after power-on.SOLUTION: A planetary gear 48 is meshed with both of a sun gear 44 driven by first driving means 52 and an internal gear 46 driven by second driving means 58, thereby holding the planetary gear 48 with a holding plate 50. In response to rotation of the holding plate 50, a laser irradiator 16 for emitting a laser beam 12 is rotated. When the laser irradiator 16 is rotated, one of the first driving means 52 and second driving means 58 is operated to rotate the laser irradiator 16 at a high rotation speed or a low rotation speed for fine adjustment.

Description

  The present invention relates to a rotation mechanism of a laser marking device that can freely rotate a laser marking device.

  2. Description of the Related Art Conventionally, a laser marking device that irradiates an object to be irradiated such as a wall surface or a ceiling with a horizontal or vertical line by a laser beam during construction work such as interior work has been used. In general, the laser beam emitted from the laser marking device is red visible light, and the horizontal and vertical reference lines are set on the wall surface etc. by observing the trace of the emitted laser beam. Has been done.

  Patent Document 1 provides a laser marking device and a remote controller for operating the laser marking device for accurately aligning the laser beam from the laser marking device in the vertical direction of the wall surface. The laser marking device of Patent Document 1 is a case main body placed on a base such as a floor surface, a rotation mechanism provided at the upper part of the case main body, an upper part of the rotation mechanism, and a laser line. A laser irradiator having a light emitting part for emitting light is used. The laser irradiator of the laser marking device is rotated by operation of a remote controller that also serves as a light receiver (Patent Document 1).

  In this patent document 1, a laser marking device and a remote controller serving as a light receiver are arranged at positions far apart (for example, a position separated by 10 meters or more), and the laser controller is operated by operating the remote controller serving as a light receiver. The position of the laser beam from the laser irradiator can be adjusted at a position away from the ink discharger, and the operation of adjusting the position of the laser beam can be performed by one person.

JP 2006-215019 A

  A large rotation of the laser irradiator in the laser marking device of Patent Document 1 is rotated by a DC motor, and a fine adjustment to adjust the center of the laser beam in a range of ± 3 ° centered on a predetermined position is performed by a stepping motor. Make it. Here, a structure for performing fine adjustment for aligning the center of the laser light in Patent Document 1 will be described with reference to FIG. On the manual fine movement ring 80, a stepping motor 82 and a pair of interrupters 84 and 86 arranged with a predetermined interval M are provided. A guide 88 is arranged between a pair of interrupters 84 and 86 arranged with a predetermined interval M. The guide 88 is screwed into a screw rod 90 that is rotated by a stepping motor 82. The screw rod 90 is rotated by the rotation of the stepping motor 82, and the guide 88 is interposed between the interrupter 84 and the interrupter 86 by the rotation of the screw rod 90. To move horizontally. The guide 88 includes a pair of claw portions 92a and 92b, and a guide shaft 96 fixed to the automatic fine movement ring 94 is inserted and fitted into a space between the pair of claw portions 92a and 92b. A light emitting means (not shown) for emitting laser light is placed on the automatic fine movement ring 94.

  Fine adjustment to align the center of the laser beam to a predetermined position is the first time the stepping motor 82 is activated when the laser beam is in the approximate range of the predetermined center position (± 3 ° range centered on the predetermined position). Then, the screw rod 90 is rotated to move the guide 88 in the horizontal direction between the interrupter 84 and the interrupter 86. As the guide 88 moves in the horizontal direction, the guide shaft 96 fitted to the pair of claws 92a and 92b is moved, and the automatic fine movement ring 94 rotates. The distinction between the clockwise and counterclockwise rotations of the automatic fine movement ring 94 is adjusted by forward / reverse rotation of the stepping motor 82. In this way, fine adjustment for adjusting the center position of the laser beam is performed by the rotation of the stepping motor 82, the rotation of the screw rod 90, the horizontal movement of the guide 88, and the rotation of the automatic fine movement ring 94.

  In the fine adjustment mechanism shown in FIG. 8, the horizontal position of the guide 88 is generally biased to either the interrupter 84 or the interrupter 86 in a state where the center positions of the laser beams are aligned. Therefore, when the power is turned on when the next laser marking device is used, centering (recovery operation) is required to move the guide 88 to an intermediate position between the interrupter 84 and the interrupter 86, and the centering (recovery operation) is completed. It took some time to do.

  The present invention has been made in view of the above points, and eliminates the need for a recovery operation required in the prior art, and provides a rotation mechanism for a laser marking device that can be used immediately after the power is turned on. It is the purpose.

  In order to achieve the above-mentioned object, the present invention comprises a main body portion having a receiving means for receiving a signal from a transmitting means and a light emitting means for emitting laser light, and is rotatable with respect to the main body portion. In a laser marking device having a laser irradiator, a planetary gear meshing with both the sun gear rotatable with respect to the main body, an internal gear rotatable with respect to the main body, and both the sun gear and the internal gear A gear, a planetary gear for holding the planetary gear rotatably, a holding plate that rotates together with the laser irradiator, a first drive means for driving the sun gear, and the first drive means. A first gear train, a first tail gear that is located on the opposite side of the first gear train from the first drive means and meshes with the sun gear, and for driving the internal gear A second drive means; a second gear train driven by the second drive means; and a second gear train that is located on the opposite side of the second gear train from the second drive means and meshes with the internal gear. And a tail gear. The present invention holds the sun gear, the internal gear, the first gear train, and the second gear train in a rotatable state, and includes a gear support base that is rotatable with respect to the main body. It is characterized by this. The present invention is characterized in that the first driving means is a stepping motor and the second driving means is a DC motor. The present invention is characterized in that the number of the planetary gears held by the holding plate is two.

  In the prior art, when the laser marking device is used next time, when the power is turned on, the centering operation (recovery operation) for moving the guide to an intermediate position between the pair of interrupters takes some time. On the other hand, since the rotation mechanism of the laser marking device according to the present invention does not require a centering operation (recovery operation), the power is turned on, the sun gear is rotated by the first driving means, or the second driving means is used. One of the internal gears is rotated, and the laser irradiator can be immediately rotated.

It is a block diagram which shows the laser marking device provided with the rotation mechanism which concerns on this invention, and the light receiver combined remote controller which operates the laser marking device. It is a front view of the remote controller combined with a light receiver shown in FIG. It is the top view which looked at the main-body part in the state which removed the laser irradiation device and the planetary gear member from the laser marking device. FIG. 4 is a cross-sectional view of the main part of FIG. 3 taken along line AA. It is a block diagram of the rotation mechanism of the laser marking device which concerns on this invention. FIG. 6 is a perspective view of a planetary gear member used in the rotation mechanism shown in FIGS. 4 and 5. It is a front view which shows the state in which the laser beam is irradiated to the light receiving element of the remote control used by this invention. It is the schematic of the stepping motor unit of the rotation mechanism of the conventional laser marking device.

  Hereinafter, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a laser marking device provided with a rotating mechanism according to the present invention and a remote controller for a light receiver that operates the laser marking device, and FIG. 2 is a front view of the remote controller for a light receiver shown in FIG. 3 is a plan view of the main body viewed with the laser irradiator and the planetary gear member removed from the laser marking device, FIG. 4 is a cross-sectional view taken along line AA of FIG. 3, and FIG. FIG. 6 is a perspective view of a planetary gear member used in the rotation mechanism shown in FIGS. 4 and 5.

  FIG. 1 shows a laser marking device 10 incorporating a rotation mechanism according to the present invention, and operating means for receiving a laser beam 12 from the laser marking device 10 and driving the rotation mechanism of the laser marking device 10. A remote controller 14 having a light receiver (hereinafter referred to as “remote controller 14”) is shown. The laser marking device 10 includes a laser irradiator 16 that includes a light emitting unit 15 that emits laser light 12, and a main body unit 18 that includes a receiving unit 17 that receives an operation signal (transmission signal) from the remote controller 14. The laser irradiator 16 is mounted above the main body 18 so as to be rotatable with respect to the main body 18, and the main body 18 is mounted on the floor 20 or the like when used.

  The remote controller 14 (see FIG. 2) includes a light receiving area 26 having a first light receiving element 22 and a second light receiving element 24, a center position display lamp 28 provided above or below the light receiving area 26, and one central position. A first approximate position display lamp 30a and a second approximate position display lamp 30b provided on the left and right sides of the display lamp 28 are provided. As shown in FIG. 1, the remote controller 14 includes rotation direction switches 31a and 31b for rotating the laser irradiator 16 in either the right direction or the left direction. As shown in FIG. 7, when the first light receiving element 22 and the second light receiving element 24 are in contact with each other and the center of the laser light 12 comes to the contact position, the laser light 12 comes to a predetermined center position. It is assumed that the center position lamp 28 shines. For example, when the laser beam 12 is positioned on the first light receiving element 22, the laser irradiator 16 is rotated so as to move the laser beam 12 toward the second light receiving element 24 (the operation will be described later). In this case, the first approximate position display lamp 30a is lit. When the laser light 12 is positioned on the second light receiving element 24, the laser irradiator 16 is rotated so as to move the laser light 12 to the first light receiving element 22 side. In this case, the second approximate position display lamp 30b is lit.

  The remote controller 14 includes a power switch 32, a remote controller tracking switch 34, and a buzzer switch 36. The remote controller 14 further includes a level 38 and a transmission means 40 for transmitting an operation signal for driving the laser marking device 10.

  Next, the rotation mechanism of the present invention will be described with reference to FIGS. As shown in FIGS. 3 to 5, the rotation mechanism 42 mainly includes a sun gear 44, an internal gear 46, two planetary gears 48 that mesh with both the sun gear 44 and the internal gear 46, and a planetary gear 48. A holding plate 50 that rotatably holds the first gear 52, a first drive means 52 for driving the sun gear 44, a first gear train 54 driven by the first drive means 52, and a first gear train 54 in the first gear train 54. The first rear gear 56 that is located on the opposite side of the drive means 52 and meshes with the sun gear 44, the second drive means 58 for driving the internal gear 46, and the second drive means 58. A second gear train 60 and a second rear gear 62 which is located on the opposite side of the second gear train 60 from the second drive means 58 and meshes with the internal gear 46. The sun gear 44, the internal gear 46, the first gear train 54, and the second gear train 60 are supported by the gear support base 64 (FIG. 4) in a rotatable state.

  A rotation knob 66 (FIG. 3) is attached to the main body 18, and the rotation knob 66 connects the gear support base 64 to the OO line (FIG. 4) of the main body 18 via a connecting means (not shown). It is set to be able to rotate around. It is desirable to use a stepping motor for the first drive means 52 and a DC motor for the second drive means 58, but the motors used for the first drive means 52 and the second drive means 58 are not limited to these. is not.

  As shown in FIG. 6, two planetary gears 48 are rotatably attached to the holding plate 50, and the two planetary gears 48 mesh with the sun gear 44 and the internal gear 46 (FIGS. 4 and 5). ), The holding plate 50 is rotatably mounted on the main body 18. The laser irradiator 16 is placed on the holding plate 50, and the rotation of the holding plate 50 and the rotation of the laser irradiator 16 are set to be the same. The number of planetary gears 48 attached to the holding plate 50 is preferably two from the viewpoint of rotational stability when the holding plate 50 rotates, but may be one or three or more.

  Next, a procedure for drawing a marking line on the wall surface by the laser marking device 10 and the remote controller 14 provided with the rotating mechanism 42 according to the present invention will be described. In the following description, it is assumed that a stepping motor is used for the first drive means 52 and a DC motor is used for the second drive means 58. As shown in FIG. 1, a ground line 68 is drawn on the floor 20 in advance. This is a procedure for projecting the laser beam 12 of the laser marking device 10 in the vertical direction on the wall surface 70 on the extended line of the floor surface 20 on which the ground line 68 is drawn. The laser marking device 10 has a function of emitting a lower laser beam 72 downward in the vertical direction, and the laser marking device 10 so as to match the lower laser beam 72 on the ground line 68. Is placed on the floor 20. On the other hand, the remote controller 14 makes the front face the laser marking device 10, makes one side surface contact the floor surface 20, and positions the central position display lamp 28 of the remote controller 14 (first light receiving element 22 and second light receiving element 24. The position matching the joint position) is matched with the ink line 68 drawn on the floor 20. The receiver 17 of the main body 18 in the laser marking device 10 is directed toward the transmitter 40 of the remote controller 14.

  The power switch 32 of the remote control 14 is turned on, and then the tracking switch 34 of the remote control 14 is turned on. The rotation direction of the laser irradiator 16 in the right direction or the left direction is operated by the rotation direction switches 31a and 31b of the remote controller 14 shown in FIG. As a result, a signal is transmitted from the transmission means 40 of the remote controller 14 and the signal is received by the reception means 17. First, when the laser beam 12 does not enter either the first light receiving element 22 or the second light receiving element 24, the second driving means 58 is driven to rotate the internal gear 46, and the first light receiving element 22 is rotated. The laser irradiator 16 is rotated at a high speed in the direction in which the laser light 12 enters one of the second light receiving elements 24.

  When either the first light receiving element 22 or the second light receiving element 24 is irradiated with the laser beam 12, the driving of the second driving means 58 is stopped and the first driving means 52 starts driving. That is, when the laser irradiator 16 is rotated, only one of the first driving means 52 and the second driving means 58 is rotated. The sun gear 44 is rotated by the driving of the first driving means 52, and the rotation of the laser irradiator 16 is finely adjusted. Here, when the first light receiving element 22 is irradiated with the laser light 12, the first approximate position display lamp 30a is lit and the sun gear 44 is moved in the direction in which the laser light 12 moves to the second light receiving element 24 side. Rotate. On the contrary, when the laser beam 12 hits the second light receiving element 24, the second approximate position display lamp 30b is lit and the sun gear 44 is moved so that the laser beam 12 moves to the first light receiving element 22 side. Rotate. As described above, when the internal gear 46 is rotated to rotate the laser irradiator 16 at a high speed and the sun gear 44 is rotated to finely adjust the rotation of the laser irradiator 16, the sun gear 44 is rotated to perform laser irradiation. The rotation of the laser irradiator 16 may be finely adjusted by rotating the device 16 at high speed and rotating the internal gear 46.

When the laser beam 12 irradiates only the first light receiving element 22 or the second light receiving element 24, the laser irradiator 16 is finely rotated toward the other light receiving element side. As shown in FIG. 7A, when the laser beam 12 is applied to both the first light receiving element 22 and the second light receiving element 24, it is applied to one side (the first light receiving element 22 side in FIG. 7A). If the area is large,
Assuming that the laser beam 12 is on the first light receiving element 22 side, the first approximate position display lamp 30a emits light, and the laser irradiator 16 is rotated in the direction in which the laser beam 12 moves to the second light receiving element 24 side. Thereafter, as shown in FIG. 7B, when the laser light 12 is evenly irradiated to both the first light receiving element 22 and the second light receiving element 24, the laser light 12 is located at a desired position. Therefore, the driving of the first driving means 52 is stopped, and the rotation of the laser irradiator 16 is stopped. In this state, the center position display lamp 28 shines and the buzzer sounds for a predetermined short time.

  When the center position display lamp 28 is lit, the laser beam 12 is in a state where it matches the ink line 68, and the laser beam 12 is irradiated onto the wall surface 70 perpendicularly to the position where it matches the ink line 68. In this state, the inking operation is performed on the laser beam 12 irradiated on the wall surface 70.

  In the above description, the case where the first light receiving element 22 is irradiated with the laser light 12 has been described, but the same operation is performed even when the second light receiving element 24 is irradiated with the laser light 12.

  In the present invention, the laser beam is aligned immediately when the power switch 32, the tracking switch 34, and the rotation direction switch 31a or 31b of the remote controller 14 are pressed. be able to.

DESCRIPTION OF SYMBOLS 10 Laser marking device 12 Laser light 14 Remote controller combined with light receiver 15 Light emission means 16 Laser irradiation device 17 Reception means 18 Main body part 22 First light receiving element 24 Second light receiving element 40 Transmission means 42 Rotating mechanism 44 Sun gear 46 Internal gear 48 Planetary gear 50 Holding plate 52 First drive means 54 First gear train 56 First tail gear 58 Second drive means 60 Second gear train 62 Second tail gear 64 Gear support base

Claims (4)

  A laser marking device comprising: a main body provided with a receiving means for receiving a signal from the transmitting means; and a laser irradiator comprising a light emitting means for emitting laser light and rotatable with respect to the main body. , A sun gear rotatable with respect to the main body, an internal gear rotatable with respect to the main body, a planetary gear meshing with both the sun gear and the internal gear, and the planetary gear held rotatably. A holding plate that rotates together with the laser irradiator, a first drive means for driving the sun gear, a first gear train driven by the first drive means, and the first gear train The first rear gear that is located on the opposite side of the first drive means and meshes with the sun gear, the second drive means for driving the internal gear, and the second drive means Therefore, the second gear train is driven, and the second gear is located on the opposite side of the second gear train to the second drive means and meshes with the internal gear. Rotation mechanism of the laser marking device.   The sun gear, the internal gear, the first gear train, and the second gear train are held in a freely rotatable state, and include a gear support base that is rotatable with respect to the main body. The rotation mechanism of the laser marking device according to claim 1.   3. The laser marking device rotation mechanism according to claim 1, wherein the first driving means is a stepping motor and the second driving means is a DC motor.   The rotation mechanism of the laser marking device according to any one of claims 1 to 3, wherein the number of the planetary gears held by the holding plate is two.

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