JPH0325723B2 - - Google Patents

Description

[Detailed Description of the Invention] 3-1 Purpose 3-1-1 Industrial Application Field The invention of this patent application (hereinafter simply referred to as the "Claim Invention") utilizes the spot light of a laser beam. This relates to a projection aiming device, and in particular, it uses a laser spot light, uses an optical system structure, a mechanical mechanism, and an electronic remote control configuration to diversify the shape of the projected light and adjust the horizontal direction of the projected light. By remotely controlling the minute angle position to automate and make it more accurate, it is possible to project a laser beam spot used for work such as centering, scribing, standard setting, and positioning in shipbuilding, civil engineering, architecture, large structures, etc. , relating to sighting and surveying instruments.

3-1-2 Conventional technology In conventional sighting devices, a laser beam transmitting tube is placed above the transit and level, a lens system combined with a prism is attached to the end of the transmitting tube, and the lens system Since the laser beam is transmitted through the lens system to emit a laser spot, the amount of laser beam is attenuated to less than half as it passes through the lens system, reducing aiming accuracy. This makes it inconvenient for the tasks mentioned above, and the conversion of the horizontal angular position of the projected light is done manually, resulting in extremely low work efficiency.
There were defects such as:

3-1-3 Problems to be solved by the invention The present invention has a unique optical system structure and its mechanical,
With the electrical structure, the shape of the projected light can be diversified and automated, and the horizontal angular position of the projected light can be remotely controlled to automate the accurate selection of any angular position over 360 degrees. It is an object of the present invention to overcome the deficiencies of the conventional techniques by simplifying the integration of an optical system, a decoupling device, a remote device, etc.

3-2 Structure of the Invention 3-2-1 Means for Solving Problems Examples of the structure of the present invention will be described below based on the drawings.

In Figures 1 and 2, a known leveling device 2 is placed and fixed on the top surface of a base 1, and a bowl-shaped leveling table 3 is placed and fixed horizontally on top of the leveling device 2. Bearings 4 installed vertically above and below the center opening of the semi-base 3
In a and b, the main rotating shaft 5 of the main body is supported so as to be rotatable about the vertical axis but not movable up and down, and around the upper part of the main rotating shaft 5 is a U-shape with an opening facing downward. The left and right centers of the table 6 are fixed horizontally with screws provided inside and outside both sides, and the table 6 is moved along with the rotation main shaft 5 and the base 1 is moved relative to the leveling table 2 via the bearings 4a, b. The table 6 is supported rotatably around a vertical axis, and a laser beam transmitting tube 7,
The power supply is arranged horizontally, the motor 8 for rotating the rotational main shaft is arranged vertically, and the remote control electronic circuit etc. are fixed.

In particular, in FIG. 2, a pinion fixed to the lower end of the vertical rotating shaft of the motor 8 is engaged with a fixed horizontal minute gear 10 that surrounds the outer peripheral surface of the upper part of the leveling table 3, and responds to a remote control signal. By rotating and stopping the motor 8, the pinion 9 is rotated on the minute gear 10, the table 6 is rotated relative to the base 1, and the laser beam transmitter 7 is also rotated perpendicularly to the rotation main shaft 5. It rotates around its axis, moves the projection position of the laser beam to a desired horizontal position, and then stops.

In FIGS. 2 and 3, on the top surface of the table 6,
A circular hole 1 that can be rotated horizontally about the vertical set screw 11 and that fits and holds the motor 8 vertically.
A bowl 14 is provided horizontally protruding from the left end of the motor case 13, and a bowl 14 is provided on the upper surface of the table 6.
The U-shaped support frame 15 is fixed, and the arm 14 of the motor case 13 is interposed and protruded between the front and rear projecting pieces 16a and b of the support frame 15. A spring case 20 is rotatably screwed into contact with the arm 14, and a cylinder 18 having a hollow inside is fixed to the rear protruding piece 16b facing the arm 14, and a compression spring 19 is built in the hollow of the cylinder 18. is slidably supported and brought into contact with the arm 14, and the arm 14 is held between the spring case 20 and the thumbscrew 17 by the elastic force of the compression spring 19.

By loosening the thumbscrew 17 toward you, the compression spring 19 is extended, and the motor case 13 is rotated counterclockwise around the set screw 11 via the arm 14, and the pinion 9 of the motor 8 is moved to the leveling stand. 3, the table 6 is rotated manually with reference to the scale 21 fixed to the upper outer periphery of the leveling table 3, and the compression spring 19 is tightened forward by tightening the thumbscrew 17. After compressing, the motor case 13 is rotated clockwise around the set screw 11 through the arm 14, and the pinion 9 of the motor 8 is moved to the leveling table 3.
The table 6 is rotated by the rotation of the motor 8, and in either case, the laser beam projected from the laser beam transmitting tube 7 is moved with respect to the horizontal minute angle position.

In FIGS. 1, 4, and 5, a rectangular plate-shaped panel 22 is fixed vertically to the outside of the transmitting tube 7 of the table 6, and a hole 23 penetrating left and right is formed in a part outside the center of the panel 22. A bowl-shaped rotating frame 4 is vertically supported on the outside thereof so as to be rotatable about a horizontal axis,
The rotation frame 24 is provided with a plurality of locking holes 25 penetrating left and right at equal intervals on an arc centered on the rotation center, and the plurality of locking holes 25 of the rotation frame 24 are connected in a row in the panel 22. A spring case 26 is fixed at one place facing the circular arc, and a part of a perfectly round ball 27 having a diameter that can be inserted into and removed from the locking hole 25 of the rotating frame 24 is locked in the spring case 26. The coil spring 28 is loosely fitted in contact with the hole, the coil spring 28 is loosely fitted in contact with the other part of the ball 27, and the screw 29 is screwed into the end of the coil spring 28 opposite to the ball 27.
The ball 27 is compressed by its elastic force, and a part of the ball 27 is press-fitted into the locking hole 25 of the rotating frame 24. When the rotating frame 24 is rotated manually, the ball 27 is released from a specific locking hole 25. It is configured to be detached and fitted into the next other locking hole 25 in the rotation direction.

In addition, in order to automatically rotate the rotating frame 24 without manual operation, the locking hole 25 of the rotating frame 24, the ball 27 of the panel 22, etc. are removed, and the following procedure is performed. Configure.

That is, as shown in FIG. 4, a gear 30 is fixed to the entire outer periphery of the rotating frame 24, and a gear 31 that meshes with the gear 30 is fixed to the left panel 22 of the rotating frame 24. Rotating frame 2 with plate-shaped cam 32
The cam body 32 is rotatably supported around a horizontal axis parallel to the rotation axis of the gear 31, and the cam 32 is rotatably connected to a motor (not shown). Recessed portion 3 that sinks into the spaced portion
2 is provided, a roller 36 is supported on the actuator 35 of the micro switch 34 so that it can be inserted into and removed from the recess 33, and the signal from the remote control device is decoded by an electronic circuit to rotate the motor and rotate the cam body 32. , the roller 36 is located on the outer peripheral surface of the cam 32, and when the roller 36 is inserted into the recess 33, the actuator 35 is activated and the switch 34 stops the motor, so that the gear 31 of the cam body 32 and the rotation frame 24 are Rotating frame 24 through gear engagement
configured to rotate or stop.

Next, as shown in Figures 4, 5, and 6, especially Figure 6, in order to diversify the shape of the projected light by projecting spot light from the laser beam transmitting tube 7,
Configure as follows.

The rotation frame 24 has an arc whose radius is a position centered on the rotation center and away from the rotation center and coincident with the central axis of the hole 23 of the panel 22 and the laser beam axis from the laser beam transmitting tube 7 which is parallel to the center axis of the hole 23 at the same position. On the top, a plurality of openings 37 opening left and right are provided at equal intervals, and different optical system structures described below are fixed thereto.

That is, each photoelectric case 38 screwed into each opening 37 and fixed horizontally has a columnar quartz glass 40a placed on the surface of the optical plane glass 39 (1) as shown in FIG. 6a. The central axis is arranged perpendicularly intersecting the laser spot 41 for horizontal projection, the projected light is a horizontal straight line 42, and (2) it is placed on the surface of the optical plane glass 39 as shown in FIG. 6a. The central axis of the cylindrical quartz glass 40b is arranged to intersect horizontally with the laser spot 41 for horizontal projection, so that the projected light is a vertical straight line 43, and (3) the sixth
As shown in Figure c, a rectangular flat plate-shaped half mirror 44a made of optical glass is tilted at 45 degrees so that its forward direction is high and its front side is low toward the horizontal projection laser spot 41, and the opposing planes are perpendicular to each other. (4) As shown in FIG. 6d, a rectangular flat half mirror 42b made of optical glass is placed so that the projected light is a point 45 directly above the horizontal point 44.
is arranged at an angle of 45 degrees, with the traveling direction of the laser spot 41 facing the horizontal projection low and its front side facing high, and the opposing planes are orthogonal to each other, and the projection light is directed from the horizontal point 44 to the vertical point 47. , (5) Figure 6 e
As shown in FIG. 2, a disk-shaped glass plate 48 made of optical glass is arranged perpendicularly to the laser spot 41, and the laser spot 41 is placed on the flat plate of the disk 48 facing the projection source of the laser spot 41.
A cross groove 49 is provided which passes through the horizontal point and intersects vertically and horizontally and is recessed in a semicircular shape, and the projected light is made into a horizontal point 45 and a cross line 50 which passes through it and intersects vertically and horizontally.(6) Although not shown in the figure, a laser spot An optical glass or a focusing lens is provided to allow 41 to pass through as it is, so that the projected light is directed only to the horizontal point 45.

The axis of the laser spot 41 projected from the laser beam transmitting tube 7 and the hole 2 of the panel 22
3, the central axis of the opening 37 of the rotating frame 24, and the central axis of all the optical cases 38. is fitted into a specific locking hole 25 of the rotating frame 24, the central axis of the specific opening 37 corresponding to the locking hole 25 and the optical case 38 fixed thereto is aligned with the hole 23 of the panel 22. and the laser spot 41, and when the rotation of the rotation frame 24 is caused by the rotation of the cam body 32 that is linked to the rotation of the motor without manual operation, the identification of the cam body 32 is performed. When the roller 36 of the microswitch 34 is fitted into the recess 33 of the microswitch 34, the roller 36 of the microswitch 34 is arranged so as to match in the same manner as described above.

3-2-2 Effects of the Invention Since the present invention has the above configuration, it produces the following effects based on it.

(1) By screwing in the thumbscrew 17, the motor case 13 is rotated clockwise via the arm 14, and the pinion 9 of the motor 8 is connected to the minute gear 1 of the leveling table 3.
0, rotate the motor 8 to rotate the table 6 relative to the base 1, or loosen the thumbscrew 17 to rotate the motor case 13 counterclockwise via the arm 14 to rotate the pinion 9. is released from the minute gear 10, and the table 6 is manually rotated relative to the base 1 to align it with the scale 21 of the leveling table 3 and make one rotation of 360 degrees. Alternatively, the laser spot 41 may be rotated by a specific angle or directed to a specific location, and after the laser spot 41 is rotated or directed accordingly, the rotation of the table 6 is stopped.

(2) In conjunction with the rotation of the cam body 32 in one direction by the motor, the rotation frame 24 is rotated through the engagement of the gear 31 of the cam body 32 and the gear 30 of the rotation frame 24, and the micro The rotating frame 24 is stopped when the roller 36 of the actuator 35 of the switch 34 fits into the specific recess 33 of the cam body 32, or the rotating frame 24 is rotated only by manual operation, and the panel Ball 2 on the 22 side
The rotating frame 24 stops when the tilting hole 25 on the side of the rotating frame 24 is closed, and whether by motor or manual operation, the rotating frame 24 In relation to both positions of the specific locking hole 25, the specific optical case 3
8 is arranged corresponding to the laser spot 41, and the optical case 38 supports cylindrical quartz glass 40a, b or half mirror 4.
4a, b or a cross-groove glass disk 48 or a passing or focusing lens, the laser spot can be set as a horizontal straight line 42, a vertical straight line 43, a horizontal point 45 and a point directly above 46, a horizontal point 45 and a point directly below 47, or a horizontal point 45. and crosshair 50, horizontal point 4
Change to one of 5 only.

3-2-3 Other Embodiments (1) Other embodiments of the means for rotating the table 6 relative to the leveling table 3 and the base 1 include the following means in addition to the above.

(a) The motor 8 in Figs. 1 and 2 is used as a stepping motor, and the corresponding number of steps to obtain the required rotation angle of the table 6 is applied to the motor from a remote control device via an electronic circuit. You can also make the motor rotate through the required angle and then stop.

(b) As shown in Fig. 7a, a disc-shaped detection plate 5 with pores 51 provided at required rotation angle positions.
2 is fixed on the table 6, and a disk-shaped bisecting plate 54 with fine holes 53 provided at equal intervals over the entire circumference is fixed on the leveling table 3, and a transmitter 55 and a receiver 56 forming an optical sensor are attached. Detection plate 52
The detection body 52 is supported by supporting the bisecting plate 54 on a stationary body facing each of the pores 51 and 53 and spaced apart from each other in the vertical direction.
When the rotor rotates, the minute angle signal generated by the difference in the positions of the pores 51 and 53 is compared with the signal from the remote control device using an encoder to obtain a signal of the required rotation angular position. Stop motor 8.

(c) As shown in FIGS. 7b and 7c, an index 57 is provided on the table 6, and a protractor plate 60 with a 360 degree scale 59 is rotated on the horizontal outer periphery of the leveling table 3 using a screw 58. , the upper surface of the protractor plate 60 is a disk-shaped cam body 6 provided with a plurality of recesses 61 recessed at required angle positions on the outer peripheral surface.
2 is fixed to the table 6, and a micro switch 65 having an actuator 64 which also supports a roller 63 facing the outer peripheral surface of the cam body 62 is fixed to the table 6.

Therefore, rotate the table 6 to align the laser spot 41 with the target point position, and tighten the screw 58.
Loosen the dial and rotate the protractor plate 60 until its scale 5.
9 to match the index on the table 6, tighten the screw 58 to fix the protractor plate 60 to the leveling table 3, and the motor 8 receives a signal from the remote device via the electronic circuit and rotates. When the roller 63 rotates together with the table 6 while sliding on the outer peripheral surface of the cam body 62 and enters the next specific recess 61 of the cam body 62, the micro switch 65 acts via the actuator 64 and the motor 8 is activated.
The laser spot 41 rotates from the initial target point until it reaches 0 on the scale 59 of the protractor plate 60.
Since the laser spot 41 is projected by moving from the angular position to the angular position of the recess 61 of the cam body 62, by setting the angular position of the recess 61 at a desired angle, the laser spot 41 can be projected within a desired angle range.

(d) As shown in Fig. 7d, the recess 61 of the cam body 62 in the embodiment shown in Figs. Even if the transmitting body 67 and the receiving body 68 of the photoelectric sensor arranged as shown in FIG. 7 are fixed to the table 6, the same effect as shown in FIGS.

(2) Other embodiments of the means for rotating the rotating frame 24 relative to the panel 22 include the following means in addition to the above.

(a) In FIG. 4, a pore opening upward and downward is arranged in place of the recess 33 of the cam body 32, and a pore is arranged in place of the roller 36 of the actuator 35 of the micro switch 34 facing the pore. A similar effect can be obtained even if the transmitter and receiver of the photoelectric sensor are fixed to the panel with the transmitter and receiver separated vertically.

(b) In Fig. 4, the cam body 32 and the recess 33 are eliminated, only the gear 31 is left, the gear 31 is replaced with a rotating motor and a stepping motor is used, and the rotating frame 24 is used as the rotating frame 24 and each of its openings is replaced with a stepping motor. 37. A similar effect can be produced by applying the required number of pulse signals to the stepping motor via an electronic circuit by a remote control device so that each optical case 38 rotates at each central angle of the arrangement.

3-3 Effects of the Invention The present invention has the above-mentioned configuration and produces the above-mentioned effects, and therefore has the following effects.

(1) By loosening the thumbscrew 17 using the rotating means, the compression spring 19 is expanded, and the motor 13 is rotated counterclockwise around the set screw 11 via the arm 14, and the pinion 9 of the motor 8 is moved to the leveling stand. 3 minute gear 10
If the table 6 is rotated manually while aligning the index 57 with the scale 21 of the leveling table 3, the recess 61 of the cam body 62 and the detection body 5
Without being constrained by the positions of the small holes 51 and 66 of 2, the table 6 can be quickly moved to a large angle or finely by manual operation to a desired position other than the specific rotation angle position of the table 6 relative to the leveling table 3. The laser spot 51 can be directed to any small angle position.

Also, by tightening the thumbscrew 17,
The compression spring 19 is compressed and the motor case 13 is rotated clockwise through the arm 14 about the set screw 11, the pinion 9 of the motor 8 is engaged with the minute gear 10 of the leveling table 3, and the motor is rotated. If the table 6 is automatically rotated relative to the leveling table 3 in conjunction with the rotation of the reference table 8, the concave portion 6 of the cam body 62, which is the position of the specific rotation angle of the table 6 relative to the reference table 3,
The laser spot 41 can be quickly directed to the position of the pores 51 and 66 of the detector 52 and the detector 52.

(2) The detection means detects the recess 61 of the cam body 62 and the pore 5 of the detection body 52.
1 and 66 are subdivided and provided at desired rotation angle positions on the table 6, the laser spot 41 can be directed to a desired minute rotation angle position.

[Brief explanation of drawings]

Fig. 1 is a front view of the whole with some longitudinal sections taken, Fig. 2 is a side view of the whole with some parts omitted, Fig. 3 is a plan view showing some details and omitting other parts, and Fig. 4 The figure is a side view showing some details and omitting other parts, FIG. 5 is a perspective view showing details of FIG. 4, FIGS. 6 a to e are perspective views showing the optical system device, and FIGS. 7 a to d is a perspective view showing a horizontal minute angle device.

Claims (1)

[Scope of Claims] 1. A disc-shaped leveling table 3 fixed horizontally, and a table supported above the leveling table so as to be rotatable about an axis perpendicular to the leveling table, and provided with an index 57. 6 and fix it on the table and place the laser spot horizontally 4
A laser beam transmitting tube 7 that projects a laser beam 1, a motor 8 or a stepping motor that is fixed to a table and can rotate around its own vertical axis, and a motor 8 or a stepping motor that is fixed to a table and transmits a signal for rotating the motor remotely. An electronic circuit received from the operating device, a pinion 9 fixed to the vertical axis of the motor, a minute gear 10 fixed along the outer periphery of the leveling table so that it can engage with the pinion, and a degree gear 10 rotatably supported on the table and fixed in one direction. or a rotating body 17, 13 that engages or disengages the pinion from the minute gear through elastic force in connection with manual operation in the opposite direction; Supported in a lockable manner, arranged to match the index of the table, and 360
scales 21, 59 that display angles in degrees;
A plurality of receiving portions 51, 61, 66 are fixed to a table or a leveling stand and arranged corresponding to the required rotation angle positions of the table; An aiming device comprising: detecting means comprising operating parts 55, 56, 65, 67, and 68 configured to stop a motor in response to a signal generated in connection with a coincidence of the motors. 2. A patent characterized in that the acting part of the detection means is configured to give a stepping motor a pulse signal corresponding to the number of steps required to rotate the table to a position with a required rotation angle. An aiming device according to claim 1. 3. The detection device includes a disc-shaped detection plate 52 fixed to a table and provided with a plurality of small holes 51 at the required angular positions of the table rotation, and a disk-shaped detection plate 52 fixed to a leveling table and provided with small holes equally spaced around the entire circumference. 53 is provided, and a disk-shaped splitting plate 54 that matches the detection plate, photoelectric sensors 55 and 56 that are fixed to a stationary body and sandwich both pores vertically, and a difference in the position of both pores due to rotation of the detection body. A comparison circuit configured to stop the motor in response to a signal of the required rotational angle position generated by comparing an minute angle signal generated by the above with a signal from a remote control device using an encoder. Aiming devices as described in Section 1. 4. The detection means is caused in connection with the coincidence of the cam body 62 fixed to the leveling table and provided with a plurality of recesses 61 at the angular positions of the required rotation of the table, and the recesses supported by the table and caused by the rotation of the table. The aiming device according to claim 1, comprising a micro switch 65 configured to stop the motor in response to a signal. 5. The detection means includes a disc-shaped detection plate fixed to the leveling table and provided with a plurality of pores 66 at the angle positions required for the table's rotation, and a disc-shaped detection plate fixed to the table and sandwiched between the pores at the top and bottom for rotation of the table. The aiming device according to claim 1, characterized in that it comprises photoelectric sensors 67, 68, which stop the motor in response to a signal generated in connection with the alignment with the pore.