A laser-guided two-dimensional tuning stage

Abstract

This utility model relates to a two-dimensional laser beam adjustment stage, comprising an anti-loosening nut, a motor support spring, a lower limit switch, a geared motor, a first fixing screw, a sensor encoder, a sensor, a PCB board, a first sleeve, a screw, a stud, a first joint bearing, an aluminum plate, a second joint bearing, a second sleeve, a spring, a laser head, and a second fixing screw; the anti-loosening nut and the screw cooperate to fix the geared motor. This two-dimensional laser beam adjustment stage, by employing a high-precision transmission mechanism and a closed-loop feedback control system, achieves high-precision and rapid electric adjustment of the laser beam in a two-dimensional plane, solving the technical problems of low accuracy and slow response in manual adjustment. Through standardized and modular component design, the transmission structure and assembly process are simplified, reducing reliance on processing and complex processes, thereby effectively reducing overall production costs, improving production efficiency, and enhancing the stability and reliability of the laser beam adjustment system.

Description

Technical Field

[0001] This utility model relates to the field of tuning stations, and in particular to a laser-guided two-dimensional tuning station. Background Technology

[0002] Laser beam-guided systems have wide applications in security monitoring, military training, and scientific research. Precise alignment of the laser beams at the transmitter and receiver is a crucial prerequisite for ensuring system reliability and functional effectiveness.

[0003] Currently, the industry commonly uses manually adjustable platforms to align laser beams. These platforms rely on operators manually rotating precision screws or knobs to move the platform housing the laser in minute movements within a two-dimensional plane.

[0004] However, existing two-dimensional adjustment platforms based on manual operation have many inherent drawbacks:

[0005] 1. Limited adjustment accuracy: Existing manual adjustment stages are limited by human operation factors and the precision of the mechanical structure itself, making it difficult to achieve high-precision positioning of the laser beam in a two-dimensional plane. This makes it difficult to accurately align the laser beam, affecting the alignment accuracy and overall reliability of the laser beam alignment system.

[0006] 2. Low adjustment efficiency: The manual adjustment process is cumbersome and time-consuming. Operators need to repeatedly and meticulously adjust the knobs in two mutually perpendicular directions to achieve the ideal alignment position. Especially in application scenarios that require real-time or frequent adjustments, the speed of manual adjustment is difficult to meet the requirements, which significantly reduces work efficiency.

[0007] 3. High maintenance costs: Because the adjustment accuracy is easily affected by human operation and subsequent foundation settlement, the existing manual adjustment platform needs to be calibrated frequently to ensure accuracy.

[0008] 4. Operation depends on experience: The effectiveness of manual adjustment largely depends on the skill level and experience of the operator. Inexperienced operators find it difficult to complete fine alignment quickly and accurately, which increases the difficulty of operation and dependence on professional personnel, and is not conducive to the rapid deployment and widespread application of the equipment. Utility Model Content

[0009] The purpose of this invention is to address the problem of manual adjustment of laser beam two-dimensional adjustment stages in the prior art, and to propose a laser beam two-dimensional adjustment stage.

[0010] A laser beam two-dimensional adjustment stage includes an anti-loosening nut, a motor support spring, a lower limit switch, a geared motor, a first fixing screw, a sensor encoder, a sensor, a PCB board, a first sleeve, a screw, a stud, a first joint bearing, an aluminum plate, a second joint bearing, a second sleeve, a spring, a laser head, and a second fixing screw.

[0011] The anti-loosening nut and screw work together to fix the geared motor;

[0012] The motor support spring supports the geared motor;

[0013] The lower limit switch controls the control panel to return to zero.

[0014] The height angle change of the PCB board for the electric control of the geared motor;

[0015] The first fixing screw fixes the aluminum plate, and the sleeve adjusts the fixed angle height of the aluminum plate;

[0016] The sensor encoder is mounted on the geared motor, and the sensor senses the sensor encoder.

[0017] The stud is connected to the geared motor;

[0018] The first and second joint bearings drive the adjustment table to change angle by moving the shaft up and down.

[0019] The second sleeve is disposed inside the second joint bearing, and the second sleeve is connected to the geared motor;

[0020] The spring limits the second joint bearing;

[0021] The second fixing screw secures the laser head.

[0022] Among them, the motor support spring causes the geared motor to move slightly as the angle of the adjustment table changes;

[0023] The anti-loosening nut and screw are made of stainless steel.

[0024] The sensor encoder is made of plastic.

[0025] The spring in question is a torsion V-shaped spring.

[0026] Furthermore, in a laser-guided two-dimensional tuning stage, multiple magnets are placed above the sensor code disk;

[0027] The sensor encoder is fixed to the motor shaft of the geared motor through a screw.

[0028] The sensor is used to sense the encoder on the geared motor to know the current tuning angle. When the tuning is completed from the lowest to the highest, the sensor can read 240 times. 240 divided by 4 = 60 revolutions.

[0029] Furthermore, a laser-guided two-dimensional adjustment stage is provided, wherein the PCB board serves as the support plate for the adjustment stage;

[0030] The screw causes the adjustment table angle to change up and down or left and right through the rotation of the geared motor.

[0031] Among them, the motor support spring is model M6, and the anti-loosening nut, copper bushing, screw, hexagonal internal thread stud, internal thread copper bushing, and fixing screw are model M3;

[0032] Among them, the hexagonal internal thread stud is used to fix the adjustment table to the machine housing, and when used with the torsion V-type spring, it also takes into account the problem of the spherical bearing rotating concentrically when the geared motor moves.

[0033] When the geared motor rotates, the inner threaded copper bushing will move up and down with the rotation of the geared motor. The presence of the spherical bearing converts the up and down movement into an angle change of the adjustment table.

[0034] Furthermore, a laser beam two-dimensional adjustment stage is provided, wherein the aluminum plate is provided with a first joint bearing, a second joint bearing, and a laser head;

[0035] The spring limits the second joint bearing and the reduction motor to rotate concentrically.

[0036] Furthermore, in a laser-guided two-dimensional adjustment stage, the first joint bearing and the second joint bearing respectively pass through holes provided in an aluminum plate.

[0037] Furthermore, a laser beam two-dimensional tuning stage is provided, wherein the laser head emits infrared laser and visible laser.

[0038] The laser head is detachably mounted on the aluminum plate for easy maintenance and replacement.

[0039] Furthermore, in a laser-guided two-dimensional adjustment stage, the first sleeve is pressed into the inner shaft of the first joint bearing, and the second sleeve is pressed into the inner shaft of the second joint bearing.

[0040] Furthermore, in a laser-guided two-dimensional tuning stage, the stud is a hexagonal internal thread stud.

[0041] Furthermore, in a laser-guided two-dimensional tuning stage, the first and second joint bearings are fisheye joint bearings.

[0042] Furthermore, in a laser-guided two-dimensional adjustment stage, the first sleeve is a copper sleeve, and the second sleeve is an inner-threaded copper bushing.

[0043] The beneficial effects of this utility model are:

[0044] 1. Significantly improved adjustment accuracy: By adopting an electric drive mechanism, the human error caused by manual operation and the mechanical backlash and return error of the traditional screw structure are eliminated, solving the core problem of the difficulty in accurately aligning the laser beam and significantly improving the alignment accuracy, reliability and stability of the laser beam alignment system;

[0045] 2. Significantly improve adjustment efficiency: Utilizing electric drive technology, operators can control the drive adjustment table to quickly and automatically complete position adjustments in both the X and Y directions via commands, significantly improving work efficiency.

[0046] 3. Reduce component wear: The use of high-quality wear-resistant materials significantly enhances the wear resistance and fatigue resistance of components, reduces the rate of mechanical wear during long-term use, and extends the service life of core components.

[0047] 4. Reduced calibration frequency: Electric drives have higher position repeatability and stability, and combined with potentially integrated automatic calibration functions, they greatly reduce the frequency of manual calibration of the equipment.

[0048] 4. Simplified operation and lowered threshold: The complex manual fine adjustment process is transformed into an automated process driven by control system commands. Operators do not need to have extensive experience and superb manual adjustment skills, which improves the ease of use and popularity of the equipment. Attached Figure Description

[0049] Figure 1 This is an exploded structural diagram of the present invention.

[0050] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0051] Figure 3 This is a schematic diagram of the flipping structure of this utility model.

[0052] Figure 4 This is a schematic diagram of the bottom structure of this utility model.

[0053] In the diagram, 1-anti-loosening nut, 2-motor support spring, 3-lower limit switch, 4-gear motor, 5-first fixing screw, 6-sensor encoder, 7-sensor, 8-PCB board, 9-first sleeve, 10-screw, 11-stud, 12-first joint bearing, 13-aluminum plate, 14-second joint bearing, 15-second sleeve, 16-spring, 17-laser head, 18-second fixing screw. Detailed Implementation

[0054] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0055] Specific Embodiment 1: The structural composition of a laser-guided two-dimensional tuning stage:

[0056] As attached Figure 1-4 As shown, a laser beam two-dimensional adjustment stage includes an anti-loosening nut 1, a motor support spring 2, a lower limit switch 3, a geared motor 4, a first fixing screw 5, a sensor encoder 6, a sensor 7, a PCB board 8, a first sleeve 9, a screw 10, a stud 11, a first joint bearing 12, an aluminum plate 13, a second joint bearing 14, a second sleeve 15, a spring 16, a laser head 17, and a second fixing screw 18.

[0057] The anti-loosening nut 1 and the screw 10 are used to fix the reduction motor 4. The motor support spring 2 supports the reduction motor 4. The lower limit switch 3 controls the adjustment table to return to the zero point. The reduction motor 4 electrically controls the height and angle change of the PCB board 8. The first fixing screw 5 fixes the aluminum plate 13. The sleeve 9 adjusts the fixed angle height of the aluminum plate 13.

[0058] The sensor encoder 6 is mounted on the geared motor 4. The sensor 7 senses the sensor encoder 6. The stud 11 is connected to the geared motor 4. The first joint bearing 12 and the second joint bearing 14 drive the adjustment table to produce an angle change by changing the up and down of the shaft.

[0059] The second sleeve 15 is set inside the second joint bearing 14. The second sleeve 15 is connected to the reduction motor 4. The spring 16 limits the second joint bearing 14. The second fixing screw 18 fixes the laser head 17.

[0060] Multiple magnets are placed above the sensor code disk 6. The sensor code disk 6 is fixed to the motor shaft of the geared motor 4 through the screw 10. The sensor is used to sense the sensor code disk on the geared motor to know the current tuning angle.

[0061] PCB board 8 is the support plate for adjusting the stage. The screw 10 causes the adjusting stage angle to change up and down or left and right through the rotation of the geared motor 4. The aluminum plate 13 is equipped with a first joint bearing 12, a second joint bearing 14, and a laser head 17. The spring 16 limits the second joint bearing 14 and the geared motor 4 to rotate concentrically.

[0062] The first joint bearing 12 and the second joint bearing 14 pass through the holes provided in the aluminum plate 13. The laser head 17 emits infrared laser and visible laser, which are 808nm or 650nm respectively. The laser head is detachably mounted on the aluminum plate. The first sleeve 9 is pressed into the inner shaft of the first joint bearing 12, and the second sleeve 15 is pressed into the inner shaft of the second joint bearing 14.

[0063] Stud 11 is a hexagonal internal thread stud, first joint bearing 12 and second joint bearing 14 are fisheye joint bearings, first sleeve 9 is a copper sleeve, second sleeve 15 is an internal thread copper bushing, sensor encoder 6 is a Hall sensor encoder, and sensor 7 is a Hall sensor.

[0064] Specific Embodiment Two: Installation process of a laser beam two-dimensional adjustment stage:

[0065] As attached Figure 1 As shown, S1: The first sleeve 9 is pressed into the inner shaft of the first joint bearing 12, so that one end is level with the first joint bearing 12 and the other end is higher than the first joint bearing 12; the second sleeve 15 is pressed into the inner shaft of the second joint bearing 14, so that one end is level with the second joint bearing 14 and the other end is higher than the first joint bearing 14.

[0066] S2: Press the prepared first joint bearing 12 and second joint bearing 14 onto the corresponding holes of the aluminum plate 13, wherein the two shorter second sleeves 15 are installed facing downwards above the joint bearings, and the first sleeves 9 are installed facing upwards;

[0067] S3: Two first joint bearings 12 serve as the later X and Y axes, and the second joint bearing 14 is used to fix the aluminum plate 13 to the PCB board 8;

[0068] S4: Pry the spring 16 open and put it onto the second joint bearing 14 on the aluminum plate 13. Use the self-tightening property of the torsion V-shaped spring to tighten it. Then manually adjust the angle of the two screws of the spring 16 to the appropriate position.

[0069] S5: The laser head 17 is fixed to the aluminum plate with two second fixing screws 18. The control line of the laser source passes through the hole in the aluminum plate 13. The assembly of the tuning aluminum plate is now complete.

[0070] S6: Rotate the screw 10 into the threaded end of the geared motor 4 and apply special thread-locking adhesive to tighten it. After tightening, pass the sensor encoder 6 through the screw 10 and fix it on the motor shaft.

[0071] S6: The two geared motors 4 are mainly installed on the PCB board 8. The first fixing screw 5 is passed through the corresponding fixing hole on the front of the PCB board 13. The motor support spring 2 is passed through the first fixing screw 5 from the back of the PCB board 8. The fixing hole is passed through the screw 10 and the anti-loosening nut 1 is installed in the motor fixing hole for fixing.

[0072] Specific Embodiment Three: Working Principle of a Laser-Driven Two-Dimensional Adjustment Stage

[0073] As attached Figures 2-4As shown, the purpose of the electric two-dimensional adjustment stage is to enable the laser source spot mounted on the aluminum plate 13 to move in four directions (up, down, left, and right) on a distant two-dimensional plane by tilting the aluminum plate 13 and the PCB board 8. Traditional two-dimensional adjustment stages achieve the tilting angle by manually adjusting the length of a screw inserted between the fixed plate and the aluminum plate. However, this application achieves the tilting effect by installing a screw 10 in the geared motor and cleverly installing three threaded spherical bearings in the aluminum plate 13. The forward and reverse rotation of the motor screw 10 causes the spherical bearings on the aluminum plate to change their height on the screw 10, thereby achieving the tilting effect of the two-dimensional adjustment stage.

[0074] 2. The tuning plate 13 is made of aluminum alloy. Except for the beveled edge, the three straight edges are equipped with spherical bearings with sleeves. The two diagonal edges of these three spherical bearings are equipped with second sleeves 15 and installed upwards. The bearing on the other edge serves as a fixed point and is fixed to the PCB board 8 through a longer first sleeve 9 installed in the opposite direction. When the two diagonal edges move up and down, the aluminum plate 13 can tilt at an angle based on the fixed point, thereby enabling the laser source mounted on the aluminum plate 13 to move up, down, left, and right on a distant plane. The reason for cutting the beveled edge of the aluminum plate 13 is to prevent it from touching the PCB board 8 when the aluminum plate 13 descends when the two reduction motors 4 on both sides reverse simultaneously, thus preventing the movement of the tuning plate from being obstructed.

[0075] 3. The geared motor 4 is flexibly fixed to the PCB board 8 by the first fixing screw 5 and the screw rod 10. When the geared motor moves and moves the joint bearing upward on the screw rod 10, the joint bearing on the aluminum plate 13 is always perpendicular to the screw rod 10, which will forcibly tilt the geared motor 4 outward. Therefore, the geared motor 4 is fixed in a flexible manner.

[0076] 4. A sensor encoder 6 is installed on the geared motor 4. The sensor encoder 6 has a total of 8 magnetic poles. The sensor 7 installed on the PCB board 8 accurately senses the number of steps of the geared motor 4, dividing one revolution of the geared motor 4 into 8 equal parts, thereby achieving precise angle control.

[0077] 5. Two lower limit switches 3 are installed on the PCB board on the vertical line between the two joint shafts and the screw 10. They are mainly used to reset the tilt angle of the adjustment table to zero after power-on. The upper limit of the adjustment table is mainly achieved by the sensor encoder 6 recording and limiting the number of steps of the reduction motor 4.

[0078] 6. Holes are provided on both the aluminum plate 13 and the PCB board 8, mainly for mounting the laser source. The laser source leads pass through the reserved holes. The laser source is fixed to the center point of the aluminum plate 13 by two second fixing screws 18. The aluminum plate 13 also serves to dissipate heat while fixing the laser source.

[0079] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A two-dimensional laser beam stage, characterized in that, Includes anti-loosening nut (1), motor support spring (2), lower limit switch (3), geared motor (4), first fixing screw (5), sensor encoder (6), sensor (7), PCB board (8), first sleeve (9), screw (10), stud (11), first joint bearing (12), aluminum plate (13), second joint bearing (14), second sleeve (15), spring (16), laser head (17), and second fixing screw (18); The anti-loosening nut (1) and the screw (10) are used to fix the geared motor (4); The motor support spring (2) supports the geared motor (4); The lower limit switch (3) controls the adjustment table to return to zero; The geared motor (4) electrically controls the height angle change of the PCB board (8); The first fixing screw (5) fixes the aluminum plate (13), and the first sleeve (9) adjusts the fixed angle height of the aluminum plate (13); The sensor code disk (6) is mounted on the geared motor (4), and the sensor (7) senses the sensor code disk (6). The stud (11) is connected to the geared motor (4); The first joint bearing (12) and the second joint bearing (14) drive the adjustment table to produce an angle change by changing the up and down of the shaft; The second sleeve (15) is disposed inside the second joint bearing (14), and the second sleeve (15) is connected to the geared motor (4); The spring (16) limits the second joint bearing (14). The second fixing screw (18) fixes the laser head (17).

2. The laser beam two-dimensional tuning stage as described in claim 1, characterized in that, Multiple magnets are placed above the sensor code disk (6); The sensor encoder (6) is fixed to the motor shaft of the geared motor (4) through the screw (10).

3. The laser beam two-dimensional tuning stage as described in claim 1, characterized in that, The PCB board (8) is the support plate for the adjustment table; The screw (10) causes the adjustment angle to change up and down or left and right through the rotation of the geared motor (4).

4. The laser-guided two-dimensional tuning stage as described in claim 1, characterized in that, The aluminum plate (13) is provided with a first joint bearing (12), a second joint bearing (14), and a laser head (17). The spring (16) limits the concentric rotation of the second joint bearing (14) and the geared motor (4).

5. The laser-guided two-dimensional tuning stage as described in claim 4, characterized in that, The first joint bearing (12) and the second joint bearing (14) pass through the holes provided in the aluminum plate (13).

6. The laser beam two-dimensional tuning stage as described in claim 1, characterized in that, The laser head (17) emits infrared laser and visible laser.

7. The laser beam two-dimensional tuning stage as described in claim 1, characterized in that, The first sleeve (9) is pressed into the inner shaft of the first joint bearing (12), and the second sleeve (15) is pressed into the inner shaft of the second joint bearing (14).

8. The laser-guided two-dimensional tuning stage as described in claim 1, characterized in that, The stud (11) is a hexagonal internal thread stud.

9. The laser beam two-dimensional tuning stage as described in claim 1, characterized in that, The first joint bearing (12) and the second joint bearing (14) are fisheye joint bearings.

10. The laser-guided two-dimensional tuning stage as described in claim 1, characterized in that, The first sleeve (9) is a copper sleeve, and the second sleeve (15) is an inner wire copper shaft sleeve.

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