JP2000230828A5 - - Google Patents

Description

[Document name] Specification [Title of invention] Gyro and laser marking device [Claims]
1. Used to swingably suspend a pendulum in a laser marking device.
It is a gyro suitable for use, with a long shaft, a short shaft, and a large diameter ring-shaped gyro bracket.
It consists of a small-diameter ring-shaped hanging bracket for mounting a pendulum, and both ends of the long shaft.
Is pivotally attached to two facing locations on the inner surface of the gyro bracket so as to be smoothly rotatable, and the short
The central part of the long shaft is inserted into the opening formed in the center of the long shaft and is pivotally attached so that it can rotate smoothly.
And at the intersection of the axis of the long axis and the axis of the short axis, the hanging bracket and the gyro bracket
A gyro characterized in that it is assembled so that the center of the opening is located.
2. The vertical posture recovery force due to the swing of a cylindrical or cylindrical pendulum is used to reduce the height.
Laser marking device configured to obtain a vertical posture that serves as a reference for the irradiation direction of the module
The gyro according to claim 1 is used to support the pendulum in the pendulum.
The marking device .
3. A disk-shaped brake plate is mounted near the lower portion of the pendulum, and the blurring occurs.
Donut-shaped neodymium magnets are provided near the upper and lower parts of the key plate, and the neodymium magnets are installed.
By applying magnetic torque to the brake plate, the swing of the pendulum is converged at an early stage, and the pendulum appears vertically.
The laser marking device according to claim 2, which is configured to stop with force.
4. The pendulum or the pendulum is located at a position where the tilt angle of the pendulum becomes a predetermined tilt tolerance limit angle.
A tilt detecting means for inputting an electric signal by contact with a rake plate is provided, and the tilt of the pendulum is tilted.
When the tilt tolerance limit angle is reached, the laser module is based on the detection signal by the tilt detection means.
The laser beam output from the device is blinked, or it is displayed on the display unit provided in the main body of the device.
The laser according to claim 2 or 3, which is configured to display by both of them.
Marking device.
5. A turntable on which a main part of a laser marking device is mounted sandwiches a friction plate on a base.
It is equipped to rotate freely
The horizontal rotation of the turntable drives the motor by operating the remote control terminal to drive the motor.
Automatically performed by rotating the friction plate by contact with a pulley provided at the tip of the moving shaft.
You can select between rotation and manual rotation by sliding the friction plate with a force that exceeds the frictional force of the friction plate.
The laser marking device according to any one of claims 2 to 4, which is configured.
6. The drive control of the motor by the remote control terminal includes microwaves.
The items of claims 2 to 5 which are configured to be performed by an optical signal including a radio wave or an infrared signal.
The laser marking device according to item 1.
7. A numeric keypad or dial for setting a desired rotation angle on the remote control terminal.
The laser marking device according to any one of claims 5 or 6, wherein the laser marking device is provided.
Description: TECHNICAL FIELD [Detailed description of the invention]
【Technical field】
[0001]
The present invention is suitable for swayingly suspending the pendulum in the laser marking device to secure a vertical posture.
The present invention relates to a gyro and a laser marking device equipped with the gyro.
0002.
[Background technology]
The marking line by the laser beam output from the laser marking device outputs a horizontal marking line.
Those that output vertical marking lines, those that output horizontal and vertical marking lines
However, various models are known. And for those who secure the horizontal and vertical posture of the marking line
, The pendulum (lens barrel) that supports the laser module is hung swingably with a gyro, and the pendulum
A method is known in which the vertical posture recovery force due to its own weight is used.
0003
As a conventional gyro mounted on the laser marking device, the gyro 7 shown in FIG. 21
There is 0. The gyro 70 pivotally attaches an inner ring 70a and an intermediate ring 70b located on the outer side of a plurality of rings having different diameters on a horizontal axis 71a, and attaches the ring 70b and the outer ring 70c to the ring 70c. It is pivotally attached to the horizontal axis 71b orthogonal to the horizontal axis 71b, and the outer ring 70c is assembled so as to be vertically rotatable, and the inner ring 71a swings in any direction with respect to the outer ring 70c. comprising a structure (conventional example 1).
0004
By the way, the vertical posture of the pendulum (lens barrel) is obtained by the pendulum calming down, but if the pendulum waits for the pendulum to calm down slowly, the work efficiency deteriorates. Therefore, conventionally, as shown in FIG. 22, a copper disc 81 is mounted near the lower portion of the pendulum (lens cylinder) 80, and a plurality of copper discs 81 shown in FIG. 23 are mounted at appropriate positions in the vertical direction of the disc 81. Permanent magnets 83 and 85 are arranged, and the magnetic torque generated between the permanent magnets 83 and 85 brakes the swing of the disk 81 to restore the vertical posture by the weight of the pendulum (lens cylinder) 80 and its vertical posture. The stop at the position was urged so that the irradiation direction of the laser beam with reference to this vertical direction could be secured (conventional example 2).
0005
If the floor on which the laser marking device is placed is tilted, or if the floor is uneven and the pendulum (lens barrel) is tilted by a predetermined angle (generally 5 °) or more, the lower end of the floor guides the surroundings. It hits and stops. The marking line output from the laser module with the pendulum (lens barrel) tilted in this way cannot be used as a marking line because it is not based on the vertical line. Then, whether or not the craftsman looks at the marking line and the marking line is based on the vertical posture.
I was deciding. (Conventional example 3).
0006
And, in the conventional laser marking device, the one equipped with the function of manually rotating horizontally.
When changing the direction of the laser beam to the horizontal rotation direction, the laser marking device may be turned by hand.
, It was lifted by hand and its direction was changed (conventional example 4).
0007
[Problems to be Solved by the Invention]
However, in the gyro according to the above-mentioned (conventional example 1), the height of the innermost ring is not so large and the seating surface is narrow, so a support for supporting the pendulum (lens barrel) and the laser module is provided here. Even if it is attached, its stability and center position cannot be sufficiently secured, and it is difficult to adjust the alignment of the center of this ring and the pendulum (lens barrel). The balance was lost and the vertical posture could not be secured, and the direction of the laser beam was out of order, which made it easy to cause a situation in which accurate marking could not be performed.
0008
Further, as described above (conventional example 2), a plurality of permanent magnets are scattered and mounted on a pendulum (lens barrel).
In a structure that applies magnetic torque to the worn disk to brake the swing of the pendulum (lens barrel)
, Since the swinging direction of the pendulum (lens barrel) and the disk is not always constant, the magnetic torque applied to the disk may vary depending on the swinging direction of the disk, and the swinging direction may occur. The state in which the disc is braked differs depending on the size and size, and it may be difficult for the brake to be applied due to the swing of the pendulum (lens barrel).
0009
Further, in the laser marking device provided with the above-mentioned (conventional example 3), it is easy to misdetermine that the vertical posture of the marking line is secured only by stopping the swing of the laser light, and the work reliability. It may greatly impair sex.
0010
Further, the laser marking device provided with the above-mentioned (conventional example 4) can be used, for example, when a craftsman changes the direction of the marking line when performing marking work on the ceiling surface at a position climbed on a stepladder. Once stepladder
There was the trouble of having to go down from and go to the place where the laser marking device is placed and rotate it by hand.
0011
In order to solve these problems, the present invention irradiates an marking line with a laser beam in an accurate direction with respect to the vertical line, and the pendulum (lens barrel) swings vertically in an instant and stable state. A gyro that can be stopped in a posture, and this gyro is mounted, and the pendulum (lens barrel) is plumb bob.
Even if the marking line is irradiated in an improper posture, it is easy to understand and informs the operator.
The direction of horizontal rotation to irradiate the marking line can be changed manually or remotely.
The purpose is to provide a laser marking device.
[Means for solving problems]
0012
According to the first aspect of the present invention , the pendulum is swayably suspended in the laser marking device.
It is an invention of a gyro suitable for use, and the gyro has a long shaft, a short shaft, and a large diameter.
With a gyro bracket in the shape of a ring and a hanging bracket in the shape of a small ring for mounting a pendulum.
The long shaft is composed of two parts facing each other on the inner surface of the gyro bracket.
Inside the opening that is pivotally attached so that it can rotate smoothly and the central portion of the short shaft is formed in the center of the long shaft.
It is inserted into the shaft and is pivotally attached so that it can rotate smoothly.
It is assembled so that the center of the opening of the racket and gyro bracket is located.
0013
In the gyro of the present invention, both ends of the long shaft are pivotally attached to the inside of the large-diameter ring-shaped gyro bracket so that the long shaft can rotate smoothly, and the short shaft is located at the center of the long shaft. The central part of the shaft is smoothly rotatable. Both ends of the short shaft do not reach the inner wall of the opening of the gyro bracket, and are open ends. Then, the hanging bracket is supported near both ends of the short shaft. For example, the upper end surface of the pendulum (lens barrel) used in the laser marking device is attached to the hanging bracket.
0014.

The invention of claim 2 is an invention of a laser marking device, which comprises swinging a cylindrical or cylindrical pendulum.
A vertical attitude that serves as a reference for the irradiation direction of the laser module can be obtained by using the vertical attitude recovery force.
The gyro according to claim 1 is used to support the pendulum in the laser marking device configured as described above.
It is characterized by being .
0015.
In the field of laser marking device, the lens barrel is suspended by a gyro and swings, and a spot-shaped laser beam is passed from a laser module arranged in the tube to show a vertical point by the laser beam on the floor surface. In this configuration, the pendulum is not only a lens barrel with such a structure, but also a large-diameter metal rod or metal cylinder that is hung by a gyro to restore the vertical posture. Also included.
A gyro with such a structure is used for the gyro of the laser marking device, and the long shaft inside the gyro.
So that the vertical line of the pendulum (lens barrel) is located at the intersection of the axes of the two rotating axes consisting of the short axis and the short axis.
Attach the upper end of the pendulum (lens barrel) to the underside of the gyro hanging bracket, and attach the pendulum (lens barrel).
If you hang it from the gyro, the pendulum (lens barrel) will swing in any direction in a well-balanced manner.
Then, it became possible to stand still based on the vertical line obtained by the weight of the pendulum (lens barrel).
As a result, it is possible to irradiate the marking line in the correct direction with respect to the vertical line.
To. That is, it becomes possible to obtain a laser marking device having high marking accuracy.
0016.
The laser marking device according to the invention of claim 3 has the above-mentioned configuration, and further, the lower part of the pendulum.
A disk-shaped brake plate is mounted in the vicinity, and the brake plate is located above and below the brake plate.
A neodymium magnet in the shape of a nut is provided, and the neodymium magnet applies magnetic torque to the brake plate.
The pendulum is configured to converge early and stop in a vertical position.
..
[0017]
With this configuration, the magnetic torque that is applied to the disk regardless of the direction in which the pendulum (lens barrel) swings.
Since the pressure is applied in the same state, a stable rocking stop force can be obtained, and either direction of the pendulum (lens barrel) can be obtained.
Even if it swings to, it will stop in an accurate vertical posture. In particular, when a neodymium magnet with high magnetic force is used, it swings.
The force to apply the brakes to the pendulum becomes stronger, and the time from rocking to rest becomes faster, and the pendulum (lens barrel) is released.
Workability is improved because it can be stopped instantly.
0018
The laser marking device according to the invention of claim 3 has any of the above configurations, and further, an electric signal is generated by contact with a pendulum or a brake plate at a position where the tilt angle of the pendulum becomes a predetermined tilt tolerance limit angle. When the tilt detection means for input reaches the tilt allowable limit angle, the laser beam output from the laser module is blinked or provided in the main body of the device based on the detection signal by the tilt detection means. It is configured so that it is displayed on the display unit or displayed by both of them.
0019
With this configuration, for example, the device may be placed tilted on the floor surface, or the floor surface may be tilted, and the lens barrel may stop in a tilted state without swinging, and the laser module may be used as it is.
It is a laser beam on the ceiling surface or the like from Le is irradiated by or displayed on the display unit the laser light is provided in the device body or flashing, that the laser beam is not irradiated direction relative to the vertical point Is easy to understand and can be visually judged.
0020
Specifically, for example, in the case where the discs come into contact with each other and an electric signal is input, the discs are formed of a conductive material and are positioned in the outer peripheral direction with a predetermined distance from the peripheral edge of the discs. In addition, the vertical peripheral surface of the anti-sway plate made of a material such as iron or copper that comes into contact with the peripheral edge of the disk is positioned, and the disk is connected to the negative ground through the lens barrel, and the conductive plate is connected to the positive electrode. There is a method of connecting each electric wire to a blinking circuit that blinks the laser beam.
0021.
It should be noted that electrodes having different polarities are alternately arranged on the vertical peripheral surface of the conductive plate in small steps, and a detection means is provided such that an electric signal is input when the disc comes into contact with the two electrodes having different polarities. It doesn't matter if there is one.
0022.
The laser marking device according to the invention of claim 4 has any of the above configurations, and further, a ray.
A turntable equipped with the main part of the marking device is rotatably provided on the base with a friction plate in between.
The horizontal rotation of the turntable drives the motor by operating the remote control terminal, and the friction plate is rotated by the contact of the pulley provided at the tip of the drive shaft of the motor. Manual rotation is possible by sliding the friction plate with a force that exceeds the frictional force of the plate.
[0023]
As for the necessity of rotating the laser beam in the horizontal direction, for example, the laser beam irradiated to the wall surface may be moved laterally to match the position where marking is required, or the direction of the laser beam irradiated to the ceiling surface may be set to a desired direction. For example, when rotating. Conventionally, this orientation was changed by changing the orientation of the device, but by adopting this configuration, the laser marking device can be rotated in the horizontal direction (horizontal direction) without moving the position. Was made possible.
0024
And the rotation can be done by two methods, motor and manual. The advantage that can be performed automatically is that the black spot of this device can be rotated accurately without shifting, and that it can be remotely controlled as described later. The advantage of being able to do it manually is that when the craftsman is near the device, he can easily turn it by hand without having to operate it remotely.
0025
It is expected that turning this device by hand in this way will impose an excessive load on the drive shaft of the motor, but in this case, in such a case, the turntable before the drive shaft rotates. Does not overload the motor because it slides against the base and runs idle. Moreover, this idling is not a mere idling, but a frictional force that does not give an excessive load to the motor is applied, so that the idling does not occur due to unintended vibration or the like. In this configuration, it is necessary to slowly rotate the device by using a low-speed motor or by providing a speed reducer.
0026
As a method of transmitting the drive of the motor, a method of constantly contacting the pulley attached to the tip of the drive shaft of the motor with the wall surface of the friction plate provided on the base side is provided on the base side. A belt drive system in which a timing belt or the like is hung between the outer peripheral surface of the friction plate and the pulley attached to the tip of the drive shaft of the motor. A method of engaging a gear mounted on the tip of the drive shaft of the above and performing a direct drive is mentioned, and all of these are applicable in this configuration.
[0027]
Further, a stepping motor, a torque motor, or a brake motor may be used for this motor to stop the rotation of the motor at an accurate position.
[0028]
When remote control is performed using the remote control terminal in this way, even if the craftsman is away from the device, the orientation of the device can be changed without leaving the place.
[0029]
If the motor control by the remote control terminal is configured to emit radio waves including microwaves,
This structure is the best because it has the advantage of not being affected by the interference of light such as sunlight and laser light.
However, is it possible to deal with a structure that transmits an optical signal including an infrared signal?
I dared to mention this as well.
[0030]
If the motor control by the remote control terminal has a structure in which an optical signal including an infrared signal is transmitted, a light emitter such as infrared rays is provided in the remote control terminal in place of the antenna, and a light receiver is provided in place of the radio wave receiving antenna. Is provided on the laser marking device side.
0031
The laser marking device according to the invention of claim 5 further applies the remote control terminal to a desired rotation.
A numeric keypad or dial for setting the corner is provided.
[0032]
The numeric keypad, for example, rotates the motor by the amount that the machine rotates 45 ° when a numerical value of 45 is input, and is used in combination with the key for selecting right or left rotation. In the case of a dial, an angle setting scale corresponding to the direction of rotation is marked around it. When the numeric keypad or dial is used in this way, the laser marking device rotates at an accurate angle corresponding to the input numerical value. In other words, the turnover system improves.
BEST MODE FOR CARRYING OUT THE INVENTION
0033
The object and the structure of the present invention are as described above, and then, a specific example of the laser marking device according to the present invention will be described in detail based on the accompanying drawings. The same reference numerals are given to common parts in each of the attached drawings.
0034
FIG. 1 is a perspective view showing the inside of the laser marking device according to this embodiment taken out from the case.
FIG. 2 is also a front view.
0035.
The laser marking device 1 of the present embodiment shown in FIGS. 1 and 2 has a plurality of laser marking devices 1 on a turntable 5 having a disk shape having an opening formed in the center and having a peripheral edge raised upward in a plan view. Pillars 4 and 4 are erected, and an upper support base 3 having substantially the same shape as the turntable 5 is mounted on the upper portion of the pillars 4 and 4 with its peripheral edge facing downward.
0036
The turntable 5 is based on a tubular mounting member 22 having a flange surface 22a formed at the upper end and a screw engraved on the lower peripheral surface through a bearing 24 through an opening at the center thereof.
By mounting on 6, it is rotatably provided on the base 26, and between the bearing 24 and the base 26, a friction plate 23 having a peripheral edge 23a raised upward and a sliding contact member 25 are provided in a sandwiched state.
0037
A drive shaft 27a of a motor 27 mounted on the turntable 5 is positioned so as to protrude on the side of the outer peripheral edge surface 23a of the friction plate 23, and a pulley 28 mounted on the end of the drive shaft 27a is attached to the outer peripheral edge. The turntable 5 is configured to rotate in the lateral direction by bringing the pulley 28 into contact with the surface 23a and driving the pulley 28 along the outer peripheral surface 23a by driving the motor 27.
[0038]
A control circuit board 30 is provided above the turntable 5 while being mounted on the pillar 4, and the motor 27 is connected to the control circuit board 30. As shown in FIG. 1, a battery case 70 is provided above the turntable 5, and all electrical and electronic components of the present device are powered by the batteries built in the battery case 70.
[0039]
A gyro 2 is mounted on the upper surface around the central opening of the upper support base 3 described above. The laser module 8 via a laser module mount 7 on the upper surface of the gyro 2,
8 ... is attached, and the upper end portion of the lens barrel 6 is attached to the lower part of the gyro 2.
0040
In addition, in FIGS. 1 and 2, four laser modules 8, 8 ... Are provided so as to irradiate the laser beam diagonally upward in all directions, and are irradiated by these four laser modules 8, 8 ... The image of the laser beam is cross-shaped. Of course, the number of laser modules 8 and 8 installed is
It can be changed by replacing it separately with the laser module mounting base 7.
[0041]
3 and 4 are a plan view and a front view showing the laser module mounting base 7, and as shown in FIGS. 1 to 4, the laser module mounting base 7 protrudes diagonally upward in all directions from the seat surface 7a. A total of four laser modules 8, 8 ... Are mounted on the mounting ends 7b, 7b ..., respectively. 7c is a hole through which a screw for mounting the laser module mounting base 7 is mounted on the upper surface of the gyro 2, and 7d is an opening.
[0042]
In FIGS. 1 and 2, each of the two electric wires connected to the rear end of the laser module 8, 8 ..., One electric wire 8a, 8a ... on the plus side has a weight balance. In consideration of this, it is connected to the upper support base 3, and the negative ground electric wires 8b, 8b ... Are connected to the laser module mounting base 7 made of a conductive material.
[0043]
Other embodiments of the connection of the electrical wires are shown in FIGS. 5 and 6, where in each of these figures a portal column 90 made of a conductive material is an insulating material on the upper surface of the upper support base 3. It is mounted via 91, and the laser modules 8, 8 ...
One electric wire on the plus side of each of the two electric wires connected to the rear end 8a, 8a.
・ Is connected toward the center of the gyro 2 in consideration of the weight balance. still,
An electric wire is separately connected to the control circuit board 30 from the pillar 90. On the other hand, laser motor
The negative ground electric wires 8b, 8b ... Connected to the rear ends of the joules 8, 8 ... Are connected to the laser module mount 7 made of a conductive material.
[0044]
7 to 15 show the gyro 2, of which FIG. 7 is a plan view showing the gyro 2 with a part cut out, FIG. 8 is a front view of the gyro, and FIG. 9 is an exploded perspective view. Is a plan sectional view of the gyro showing the divided surface of the support as a sectional line, FIG. 11 is a skeleton diagram showing the internal structure of the gyro, FIG. 12 is a front sectional view of the gyro, and FIG. 13 is a side sectional view of the gyro.
4 and 15 are a front view and a plan sectional view showing the structure of the intersection of the two axes.
0045
As shown in each of these figures, the gyro 2 includes a long shaft 53 and a short shaft 54 , bearing bearings 55 and 56 used at the intersection of these two shafts 53 and 54, and a dough having a large diameter in a plan view.
A gyro bracket 50 having a nut shape, and a suspension having a donut shape with a small diameter in a plan view.
Bracket 51, a thick mounting seat 52 having a donut shape in a plan view, and a bearing bearing 65 for supporting the re-end portion of the long first shaft 53 and mounting it on the mounting seat 52,
65 , and are assembled.
[0046]
15 from FIG. 9, the central portion of the elongated shaft 53 is widely formed, in the opening that is opened at this point, with the insertion state so that the central portion of the short shaft 54 is positioned, short
Bearing bearings 55 and 56 fitted so as to sandwich the central portion of the long shaft 54 from the re-side are mounted in the opening, and the central portion of the short shaft 54 is orthogonal to the central portion of the long shaft 53 in the lateral direction. It is rotatably pivoted in the state. Reference numerals 61 and 61 are retaining members for bearing bearings 55 and 56 mounted on the corresponding surfaces at the center of the long shaft 53 by an embedded screw, and the retaining member 6
Due to the presence of 1,61, the short shaft 54 does not cross through.
[0047]
In FIG. 9, the gyro bracket 50 has a seat 50 having a large diameter at the upper end of a thick tubular portion 50d.
It is formed by a, and half-curved surface portions 50e and 50e larger than the diameter of the long shaft 53 are formed at the opposite portions of the lower end edges thereof, and 90 with respect to the half-curved surface portions 50e and 50e. Half-curved surface portions 50f and 50f, which are substantially equal to the diameter of the short shaft 54 , are formed on the lower end edges facing each other.
0048
A screw hole 50 for mounting the laser module mounting base 7 is provided in the upper large-diameter seat 50a.
h, 50h ... Are formed, and the gyro bracket 50 is attached to the lower support 51 at a plurality of locations from the large-diameter seat 50a to the lower end through the side wall of the tubular portion 50d. A plurality of insertion holes 50j and 50j for the countersunk head bolts 59 and 59 are provided.
[0049]
In FIGS. 9 and 10, the hanging bracket 51 is a tubular portion having the same diameter and the same wall thickness as the tubular portion 50d of the gyro bracket 50, and the semi-curved surface portion 50e,
Half-curved surface portions 51e and 51e of the same size facing the 50e and the half-curved surface portions 50f and 50f.
In addition to forming semi-curved surface portions 51f and 51f of the same size facing the bolt 59,
Screw holes 51j, 51j ... For screwing 59 are formed.
0050
Further, in the lower part of the opening 51b in the hanging bracket 51 , a lens barrel (6) described later is used.
Since the upper end portion of the lens barrel (6) is inserted, pin holes 51g and 51g for mounting the upper end portion of the lens barrel (6) are provided on two opposing side surface portions of the support 51.
0051
Further, in FIGS. 8 and 9, each of the gyro bracket 50 and the hanging bracket 51
Step portions 50k and 51k for mounting the gyro bracket 50 and the hanging bracket 51 without misalignment are formed on the facing edge surfaces.
[0052]
In FIGS. 7 to 9, 12 and 13, the mounting seat 52 includes the gyro bracket 50 and the like.
It has a thick plan-view donut shape with an inner diameter larger than that of the tubular portion of the hanging bracket 51 , and a part of the bearing bearings 65, 65 is on the upper surface portion of the side wall surface facing the wall. Semi-curved surface portions 52c and 52c are formed along the peripheral surface. Although not marked,
Bearing bearings 65, 6 are placed on the upper surface of the mounting seat 52 that sandwiches the semi-curved surface portions 52c, 52c.
The screw holes of the bolts 58, 58 ... For mounting the retaining member of No. 5 and the screw holes of the bolts for mounting the mounting seat 52 on the upper support base 3 shown in FIGS. 1 and 2, respectively. It has been opened.
[0053]
To assemble the gyro 2, first, the long shaft 53 and the short shaft 54 are assembled. Subsequently, the assembled long shaft 53 and short shaft 54 are oriented so as to form a cross in a plan view, and the gyro bracket 5
Gyro bracket 5 at both ends of the short shaft 54 by aligning 0 and the hanging bracket 51
The upper and lower supports 50, 51 are mounted and integrated with bolts 59, 59 having countersunk heads so as to fit inside the semi-curved surface portions 50f, 51f, (50f, 51f) of 0 and the hanging bracket 51. To make it.
0054
At this time, both ends of the long shaft 53 are the gyro bracket 50 and the hanging bracket 51.
The half-curved surface portions 50e, 51e, (50e, 51e) of the above project from an opening formed by combining them. Bearing bearings 65, 65 are fitted to both ends of the protruding long shaft 53, while
The mounting seat 52 is positioned around the hanging bracket 51 , and the semi-curved surface portion 52 in the mounting seat 52
Bearing bearings 65 and 65 are positioned in c and 52c, and the holding members 57 and 57 are placed over the bearing members 57 and 57, and the holding members 57 and 57 are mounted on the mounting seat 52 with bolts 58 and 58. Further, if the end portions of the bearing bearings 65 and 65 are attached to the retaining members 64 and 64 and the retaining members 64 and 64 are attached to the side wall surface of the mounting seat 52 with bolts 65 and 65, the gyro 2 can be assembled. Complete.
0055
When assembled in this way , the support 5 is formed at the intersection of the axis of the long shaft 53 and the axis of the short shaft 54.
The vertical center of 0.51, that is, the vertical line of the lens barrel (6), which is a pendulum, passes through.
0056
Although not shown, a screw mounting hole for adjusting the gravity balance is formed on the peripheral side surface of the seat 50a or a portion in the vicinity thereof.
[0057]
Next, a portion of the apparatus 1 below the gyro 5 will be described. As shown in FIGS. 1 and 2, an upper portion of a copper lens barrel 6 having a cylindrical shape is attached to the lower end of the gyro 5, and the lens barrel 6 is mounted.
Is swayably suspended. A copper disk 9 having a large opening in the center is horizontally mounted near the lower portion of the lens barrel 6 in a state of expanding in the circumferential direction of the lens barrel 6.
0058.
As shown in FIGS. 2 and 16, above the disk 9, an iron support plate 10 having a donut shape in a plan view is inserted through the lens barrel 6 in the center via a plurality of mounting members 20. The lower surface of the support plate 10 is nickel-plated on iron or the like or stainless steel formed by sandwiching an insulator 12 and having a disk shape in a plan view and slightly raising the peripheral edge downward. A rocking stop plate 13 is mounted, and a stainless steel plate 15 having a donut shape in a plan view is mounted on the lower surface thereof with an insulator 14 sandwiched therein. It has been. A thick neodymium magnet 11 having a donut shape in a plan view shown in FIG. 17 is mounted at a position extending from the inner peripheral edge of the stainless plate 15 to the support plate 10.
[0059]
Further, in FIG. 16, a donut-shaped stainless steel plate 18 is mounted on an iron support plate 10 having a donut shape with an insulator 17 sandwiched below the disk 9. Is mounted on the upper surface of the rotating plate 5 below the rotating plate 5 via a plurality of mounting members 21, and the portion from the inner peripheral edge of the stainless plate 18 to the support plate 16 has a donut shape in a plan view as shown in FIG. A thick neodymium 19 having a thickness of the above is mounted in a state in which the direction of polarity is different from that of the neodymium 11 above it.
[0060]
When the donut-shaped neodymium magnets 11 and 19 are mounted on the upper and lower parts of the disk 9 with a slight gap, the disk 18 swings in the space between the two neodymium magnets 11 and 19. An extremely strong magnetic torque is generated to stop the magnets. By making the neodymium magnets 11 and 19 facing each other in a donut shape in this way, the disc 9 is circular regardless of the direction in which it swings. A constant strong magnetic torque is always applied to the plate 9. Therefore, the swing of the disk 9, that is, the lens barrel 6 is stopped instantly, stopped in the vertical posture, and this state is maintained.
[0061]
Further, in FIG. 16, as described above, the erection surface of the rocking stop plate 13 made of a conductive material such as iron is located at a position at equal intervals from the outer peripheral edge of the disk 9. The disk 9 is connected to the blinking circuit of the circuit board 30 shown in FIGS. 1 and 2 from the copper barrel 6 through the electric wire, and the rocking stop plate 13 is also connected to the flashing circuit of the circuit board 30 shown in FIGS. 1 and 2 through the electric wire 32. It is connected to the blinking circuit of the control circuit board 30 shown in. That is, the inclination detecting means by the disk 9 and the rocking stop plate 13 is provided here.
[0062]
Therefore, as shown in FIGS. 16 and 18, when the lens barrel 6 is greatly tilted and the peripheral edge of the disk 9 comes into contact with the rocking stop plate 13, electricity is conducted and the blinking circuit of the control circuit board 30 is activated. Laser
Make the module ( 8, 8 ...) blink. The number of blinks at this time is preferably several times or more, for example, five times so as not to be overlooked by the craftsman.
[0063]
As described above, the disk 9 is connected to the blinking circuit of the control circuit board 30 shown in FIGS. 1 and 2 from the copper lens barrel 6 through an electric wire. Whether or not to connect the electric wire to the control circuit board 30 is shown in FIG. 19, and a hole 50v penetrating in the vertical direction is provided in the side wall of the gyro bracket 50 and the hanging bracket 51 which form a part of the gyro 2. , 51v is opened, one end of the electric wire 8c passed through the openings 50v, 51v is connected to the upper end of the lens barrel 6, and the other end of the electric wire 8c protruding above the gyro 2 is laser-modified.
It is connected to the wheel mount 7 with a negative ground.
[0064]
Now, returning to FIG. 2, the drive control of the motor 27 is performed through the drive control circuit of the control circuit board 30.
As the command signal to the drive control circuit, an optical signal obtained by oscillating an infrared signal from the remote control terminal 100 shown in FIG. 20 is received by an infrared receiver (not shown) mounted on the outer surface of the apparatus 1, and the received light is received. The electric signal converted from the signal is sent to the drive control circuit of the control circuit board 30, and the motor 27 is rotated through the drive control circuit to rotate the portion above the base 26 of the present device 1 in the lateral direction. It is configured so that the direction of the laser beam can be laterally rotated to a desired angle.
[0065]
Therefore, the remote controller terminal 100 includes keys 101 and 102 that continuously rotate the laser beam in either the left or right lateral direction, a numeric keypad 103 that digitally sets the rotation angle, and a numeric keypad 1.
A switching key 104 for switching the rotation direction of 03 and a power key 105 are provided, and an antenna 106 for transmitting microwaves projects from the front end surface of the terminal 100.
[0066]
Even if the rotation angle of the laser beam is digitally set by the numeric keypad 103 in this way, it is difficult to obtain an accurate rotation angle unless the timing of driving the motor 27, particularly the drive stop, is constant. Therefore, it is preferable to provide a rotary encoder. ..
[0067]
By the way, as shown in FIG. 2, the upper part of the apparatus 1, that is, the part above the friction plate 23 can be turned by hand to change its direction. Therefore, when the sliding contact plate 25 is positioned between the lower surface of the friction plate 23 and the base 26 in a state of being in contact with the base 26 and the upper portion of the apparatus 1 is turned by hand, the drive shaft 27a of the motor 27 rotates. Previously, the friction plate 23 and the sliding contact plate 25 slip to prevent the rotating plate 5 from idling with respect to the base 26, thereby imposing an excessive load on the motor 27. This frictional force is such that when the motor 27 is driven to rotate the pulley 28 and travels on the friction plate 23 surface, the friction plate 23 and the sliding contact plate 25 do not slip, that is, this frictional force is applied to the motor by an external force. It is smaller than.
【Effect of the invention】
[0068]
According to the gyro according to the present invention, the two rotating shafts that rotate around the shaft are assembled in a cross shape in a plan view.
As a result, it is possible to make a gyro that swings in a well-balanced manner in any direction.
Became.
[0069]
And, as a result of mounting this gyro on the laser marking device, the pendulum (lens barrel) is in either direction.
It can swing in a well-balanced manner, and the weight of the pendulum (lens barrel) makes it positive based on the vertical line.
You can now stand still in the correct position. Therefore, it was possible to form a marking line by the laser beam in the correct irradiation direction.
[0070]
In addition, as a structure to stop the swing of the lens barrel, a copper disk that extends to the circumferential side of the lens barrel is attached to the lower part of the lens barrel or a place near it, and a slight gap is provided above and below the disk. By providing a donut-shaped neo-ji magnet in a plan view, a strong magnetic torque is applied to the disc that swings in the space between both neo-ji magnets, and the swing of the disc, that is, the lens barrel is braked to take a vertical posture. I was able to stop it with. Therefore, the swinging lens barrel could be instantly stopped at the vertical position. Therefore, the work efficiency can be improved.
[0071]
Further, a tilt detecting means for inputting an electric signal when the peripheral edge of the disk comes into contact with the tilt allowable limit angle of the disk is provided, and the tilt detecting signal by the tilt detecting means is displayed on the main body of the device. The lens barrel is displayed by the unit or the laser beam emitted from the laser module is blinked, or the floor surface on which the laser marking device is placed is tilted due to both this display and blinking. Even if the lens is stopped in a tilted position, these displays indicate that the lens barrel is not in a vertical position, so it is no longer necessary to perform work based on the wrong marking line due to misjudgment.
[0072]
Furthermore, the device is configured to be rotatable in the lateral direction by driving a motor provided inside, and the drive control of this motor can be remotely controlled by a remote control, so that the craftsman is separated from the laser marking device. Even if you are in a position, you can easily change the laser beam to the desired lateral rotation position by operating the remote control from the spot, and this lateral rotation imposes an excessive load on the motor. Do not rotate this device by hand
By making it possible to do so, the efficiency of marking work with a laser marking device will be dramatically improved.
I was able to make it higher.
[Simple explanation of drawings]
[0073]
FIG. 1 is a perspective view showing the inside of a laser marking device according to a first embodiment of the present invention taken out from a case.
FIG. 2 is also a front sectional view.
FIG. 3 is a plan view showing a laser module mount.
FIG. 4 is also a front view.
FIG. 5 is a perspective view showing an upper portion inside the laser marking device.
FIG. 6 is also a front view.
FIG. 7 is a plan view showing a part of the gyro cut out.
FIG. 8 is a front view of the gyro.
FIG. 9 is also an exploded perspective view.
FIG. 10 is a plan sectional view showing a divided surface of a gyro as a sectional line.
FIG. 11 is a skeleton diagram showing the internal structure of a gyro.
FIG. 12 is a front sectional view of the gyro.
FIG. 13 is also a side sectional view.
FIG. 14 is a front view showing the structure of an intersecting portion of two axes forming a part of a gyro.
FIG. 15 is also a plan sectional view.
FIG. 16 is an enlarged front sectional view showing a portion around a disk.
FIG. 17 is a perspective view showing a donut-shaped magnet.
FIG. 18 is a view of a rotation restricting plate and a disk attached to a lens barrel as viewed from the lower surface.
FIG. 19 is a cross-sectional view showing an arrangement structure of electric wires passing from a lens barrel through a gyro.
FIG. 20 is a front view of a remote control terminal.
FIG. 21 is a perspective view showing a gyro having a conventional structure.
FIG. 22 is a front sectional view showing a swing restraint structure of a conventional structure.
FIG. 23 is a perspective view showing the shape and arrangement position of the magnet.
[Explanation of symbols]
[0074]
1 Laser marking device 2 Gyro 3 Upper support base 5 Rotating base 6 Lens barrel
8 Laser module 9 Disk 11 Magnet 13 Anti-vibration plate 19 Magnet 23 Friction plate 26 Base 27 Motor 28 Pulley
50 gyro bracket
51 Hanging bracket 53 Long shaft 54 Short shaft 100 Remote control terminal