Laser head precision calibration device for laser level meter

Abstract

The utility model discloses a laser head precision calibration device for a laser level meter, which comprises a U-shaped rack, lifting guide rails are fixedly connected to the side inner wall of the U-shaped rack, the lifting guide rails are positioned at four corners of the U-shaped rack, the lower ends of the lifting guide rails are fixedly connected with a two-way motor, and the two-way motor is positioned on the U-shaped rack. The output end of the bidirectional motor is in threaded connection with a lifting sliding block through a vertical lead screw. A lifting adjusting mechanism is composed of a U-shaped rack, a lifting guide rail, a two-way motor, a vertical lead screw, a lifting sliding block and a horizontal fixing plate, the height of the calibration device can be adjusted to adapt to a specific use scene, and the scene adaptability of the device in use is improved; the laser generator provided with the horizontal laser emission head and the calibration laser emission head at the same time is adopted, the stepping motor drives the laser generator to rotate, the calibration laser emission head is always kept perpendicular to the four-quadrant detector, the horizontal laser emission head is synchronously kept in the horizontal state, the calibration mode is more sensitive, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of laser level accuracy calibration technology, and in particular to a laser head accuracy calibration device for a laser level. Background Technology

[0002] In fields such as construction and equipment installation, laser levels are crucial measuring tools, and the accuracy of their laser heads directly impacts the accuracy of measurement results. Traditional laser level head accuracy calibration devices have several limitations: firstly, existing calibration devices offer only a single height adjustment function, making it difficult to adapt to different heights and usage scenarios. In complex working environments, the inability to flexibly adjust the height of the calibration device leads to inconvenient calibration operations and reduced work efficiency. Secondly, the calibration method is not sensitive enough; during calibration, it is difficult to precisely maintain the perpendicularity between the laser emitter and the detector, and the horizontal state of the laser is also difficult to control stably. This results in complex operation and low calibration accuracy, failing to meet the requirements of high-precision measurement. Therefore, there is an urgent need for a laser level head accuracy calibration device that offers flexible height adjustment, sensitive calibration, and convenient operation to improve calibration efficiency and measurement accuracy. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a laser head accuracy calibration device for a laser level. The device comprises a U-shaped frame, a lifting guide rail, a bidirectional motor, a vertical lead screw, a lifting slider, and a horizontal fixing plate, forming a lifting and adjusting mechanism. This mechanism allows for height adjustment of the calibration device to adapt to specific usage scenarios, improving its adaptability. A laser generator with both a horizontal laser emitter and a calibration laser emitter is used. A stepper motor drives the laser generator to rotate, ensuring that the calibration laser emitter remains perpendicular to the four-quadrant detector, while the horizontal laser emitter remains horizontal. This makes the calibration method more sensitive and easier to operate.

[0004] This utility model also provides a laser head accuracy calibration device for a laser level as described above, comprising: a U-shaped frame, wherein a lifting guide rail is fixedly connected to the inner side wall of the U-shaped frame, the lifting guide rail is located at the four corners of the U-shaped frame, a bidirectional motor is fixedly connected to the lower end of the lifting guide rail, and the output end of the bidirectional motor is threadedly connected to a lifting slider via a vertical lead screw; a horizontal fixed plate, wherein the horizontal fixed plate is fixedly connected to the lifting slider, a first U-shaped frame and a second U-shaped frame are fixedly connected to the upper surface of the horizontal fixed plate, the first U-shaped frame is located directly in front of the second U-shaped frame, a stepper motor is fixedly connected to the inner side wall of the first U-shaped frame, the output end of the stepper motor is fixedly connected to a laser generator via a drive shaft, a horizontal laser emitting head is provided at the front end of the laser generator, a calibration laser emitting head is provided at the rear end of the laser generator, and a vertical plate is rotatably connected to the upper end of the second U-shaped frame via a rotating shaft, a four-quadrant detector is fixedly connected to the front surface of the vertical plate, the four-quadrant detector is perpendicular to the calibration laser emitting head.

[0005] According to the laser head precision calibration device for a laser level described in this utility model, casters are fixedly connected to the lower surface of the U-shaped frame, and the casters are located at the four corners of the U-shaped frame. This facilitates the movement of the device and improves its ease of use.

[0006] According to the laser head precision calibration device for a laser level as described in this utility model, mounting plates are fixedly connected to both the left and right sides of the U-shaped frame by fixing bolts, and a handle is fixedly connected to the front surface of the mounting plate. This facilitates the movement of the device and improves its ease of use.

[0007] According to the laser head precision calibration device for a laser level as described in this utility model, the lower end of the lifting guide rail is fixedly connected to the lower inner wall of the U-shaped frame, making the structure stable and secure.

[0008] According to the laser head accuracy calibration device for a laser level described in this utility model, vertical grooves are provided on the inner walls of both sides of the lifting guide rail. This facilitates the limiting installation of the lifting slider.

[0009] According to the laser head accuracy calibration device for a laser level described in this utility model, vertical sliding rods are fixedly connected to both the left and right surfaces of the lifting slider, and the lifting slider is slidably connected to a vertical sliding groove through the vertical sliding rods. This facilitates the stable lifting and lowering of the lifting slider.

[0010] According to the laser head precision calibration device for a laser level described in this utility model, the front end of the first U-shaped frame is flush with the front end of the horizontal fixing plate, and the rear end of the second U-shaped frame is flush with the rear end of the horizontal fixing plate. This makes the structure compact and stable.

[0011] According to the laser head accuracy calibration device for a laser level described in this utility model, a mounting shaft is fixedly connected to the side of the laser generator away from the stepper motor, and the mounting shaft is sleeved with a first U-shaped frame. This facilitates the stable installation of the laser generator.

[0012] Beneficial effects:

[0013] 1. Compared with the prior art, the laser head precision calibration device for laser level has a lifting adjustment mechanism composed of a U-shaped frame, lifting guide rail, bidirectional motor, vertical lead screw, lifting slider and horizontal fixed plate. The height of the calibration device can be adjusted to adapt to specific usage scenarios, thus improving the adaptability of the device to different scenarios.

[0014] 2. Compared with the existing technology, the laser head accuracy calibration device for laser level uses a laser generator that is simultaneously equipped with a horizontal laser emitter and a calibration laser emitter. The stepper motor drives the laser generator to rotate, so that the calibration laser emitter is always perpendicular to the four-quadrant detector, while the horizontal laser emitter is kept horizontal in sync. The calibration method is more sensitive and easier to operate. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the overall structure of a laser head precision calibration device for a laser level according to the present invention;

[0017] Figure 2 This is a top view schematic diagram of the laser head accuracy calibration device for a laser level according to the present invention;

[0018] Figure 3 This is a longitudinal three-dimensional cross-sectional structural diagram of a laser head precision calibration device for a laser level according to the present invention;

[0019] Figure 4 This is a schematic diagram of the transverse three-dimensional cross-sectional structure of a laser head precision calibration device for a laser level according to the present invention.

[0020] Legend:

[0021] 1. U-shaped frame; 2. Fixing bolts; 3. Handle; 4. Mounting plate; 5. Mounting shaft; 6. Second U-shaped frame; 7. Rotating shaft; 8. Vertical plate; 9. Four-quadrant detector; 10. Calibration laser emitter; 11. Laser generator; 12. Stepper motor; 13. Horizontal laser emitter; 14. First U-shaped frame; 15. Lifting guide rail; 16. Casters; 17. Bidirectional motor; 18. Horizontal fixing plate; 19. Vertical lead screw; 20. Lifting slider; 21. Vertical slide groove; 22. Vertical slide bar; 23. Drive shaft. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figure 1 and Figure 2 This utility model discloses a laser head precision calibration device for a laser level, comprising a U-shaped frame 1. Casters 16 are fixedly connected to the lower surface of the U-shaped frame 1, and the casters 16 are located at the four corners of the U-shaped frame 1. Mounting plates 4 are fixedly connected to the left and right sides of the U-shaped frame 1 by fixing bolts 2. A handle 3 is fixedly connected to the front surface of the mounting plate 4. Lifting guide rails 15 are fixedly connected to the inner side walls of the U-shaped frame 1, and the lifting guide rails 15 are located at the four corners of the U-shaped frame 1. The lower end of the lifting guide rails 15 is fixedly connected to the lower inner wall of the U-shaped frame 1. Vertical sliding grooves 21 are provided on the left and right inner walls of the lifting guide rails 15. A bidirectional motor 17 is fixedly connected to the lower end of the lifting guide rails 15. The output end of the bidirectional motor 17 is threadedly connected to a lifting slider 20 through a vertical lead screw 19. Vertical sliding rods 22 are fixedly connected to the left and right sides of the lifting slider 20. The lifting slider 20 is slidably connected to the vertical sliding grooves 21 through the vertical sliding rods 22.

[0024] Specifically, before use, the height of the device will be adjusted according to the specific usage scenario. During the height adjustment process, the bidirectional motor 17 in the lifting guide rail 15 will drive the vertical lead screw 19 to rotate in both directions. The vertical lead screw 19 will drive the lifting slider 20 to rise and fall. The lifting slider 20 will drive the horizontal fixed plate 18 to rise and fall, thereby driving the laser generator 11 and the four-quadrant detector 9 to rise and fall.

[0025] Reference Figure 1 , Figure 3 and Figure 4A horizontal fixed plate 18 is fixedly connected to a lifting slider 20. A first U-shaped frame 14 and a second U-shaped frame 6 are fixedly connected to the upper surface of the horizontal fixed plate 18. The first U-shaped frame 14 is located directly in front of the second U-shaped frame 6. The front end of the first U-shaped frame 14 is flush with the front end of the horizontal fixed plate 18, and the rear end of the second U-shaped frame 6 is flush with the rear end of the horizontal fixed plate 18. A stepper motor 12 is fixedly connected to the inner side wall of the first U-shaped frame 14. The output end of the stepper motor 12 is connected to a drive shaft 2. A laser generator 11 is fixedly connected to the first U-shaped frame 14. A mounting shaft 5 is fixedly connected to the side of the laser generator 11 away from the stepper motor 12. The mounting shaft 5 is sleeved with the first U-shaped frame 14. A horizontal laser emitting head 13 is provided at the front end of the laser generator 11. A calibration laser emitting head 10 is provided at the rear end of the laser generator 11. A vertical plate 8 is rotatably connected to the upper end of the second U-shaped frame 6 through a rotating shaft 7. A four-quadrant detector 9 is fixedly connected to the front surface of the vertical plate 8. The four-quadrant detector 9 is perpendicular to the calibration laser emitting head 10.

[0026] Specifically, during precision calibration, the laser generator 11 emits a calibration laser through the calibration laser emitter 10. The rotating shaft 7 drives the vertical plate 8 to rotate naturally, ensuring that the quadrant detector 9 remains perpendicular to the ground. The calibration laser illuminates the quadrant detector 9, which detects the angle of incidence of the calibration laser. When the angle of incidence is not 90 degrees, the stepper motor 12 drives the laser generator 11 to rotate, ensuring that the calibration laser emitted by the calibration laser emitter 10 remains perpendicular to the quadrant detector 9. When the quadrant detector 9 detects that the angle of incidence of the calibration laser is 90 degrees, the stepper motor 12 stops operating, and the horizontal laser emitter 13 remains horizontal. The laser generator 11 then emits a horizontal laser through the horizontal laser emitter 13.

[0027] Working principle: Before use, the height is adjusted via the lifting guide rail 15. During precision calibration, the rotating shaft 7 drives the vertical plate 8 to rotate naturally, ensuring that the quadrant detector 9 remains perpendicular to the ground. The calibration laser emitted by the laser generator 11 through the calibration laser emitter 10 illuminates the quadrant detector 9. When the quadrant detector 9 detects that the incident angle of the calibration laser is not 90 degrees, the stepper motor 12 drives the laser generator 11 to rotate, ensuring that the calibration laser remains perpendicular to the quadrant detector 9. When the quadrant detector 9 detects that the incident angle of the calibration laser is 90 degrees, the stepper motor 12 stops operating, and the horizontal laser emitter 13 synchronously maintains a horizontal state and emits a horizontal laser.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A laser head accuracy calibration device for a laser level, characterized in that, include: A U-shaped frame (1) is provided with a lifting guide rail (15) fixedly connected to the inner side wall of the U-shaped frame (1). The lifting guide rail (15) is located at the four corners of the U-shaped frame (1). A bidirectional motor (17) is fixedly connected to the lower end of the lifting guide rail (15). The output end of the bidirectional motor (17) is threadedly connected to a lifting slider (20) through a vertical lead screw (19). A horizontal fixed plate (18) is fixedly connected to a lifting slider (20). A first U-shaped frame (14) and a second U-shaped frame (6) are fixedly connected to the upper surface of the horizontal fixed plate (18). The first U-shaped frame (14) is located in front of the second U-shaped frame (6). A stepper motor (12) is fixedly connected to the inner side wall of the first U-shaped frame (14). A laser generator (11) is fixedly connected to the output end of the stepper motor (12) through a drive shaft (23). A horizontal laser emitting head (13) is provided at the front end of the laser generator (11). A calibration laser emitting head (10) is provided at the rear end of the laser generator (11). A vertical plate (8) is rotatably connected to the upper end of the second U-shaped frame (6) through a rotating shaft (7). A four-quadrant detector (9) is fixedly connected to the front surface of the vertical plate (8). The four-quadrant detector (9) is perpendicular to the calibration laser emitting head (10).

2. The laser head accuracy calibration device for a laser level according to claim 1, characterized in that, Casters (16) are fixedly connected to the lower surface of the U-shaped frame (1), and the casters (16) are located at the four corners of the U-shaped frame (1).

3. The laser head accuracy calibration device for a laser level according to claim 1, characterized in that, The left and right sides of the U-shaped frame (1) are fixedly connected to mounting plates (4) by fixing bolts (2), and the front surface of the mounting plate (4) is fixedly connected to a handle (3).

4. The laser head accuracy calibration device for a laser level according to claim 1, characterized in that, The lower end of the lifting guide rail (15) is fixedly connected to the lower inner wall of the U-shaped frame (1).

5. The laser head accuracy calibration device for a laser level according to claim 1, characterized in that, The lifting guide rail (15) is provided with vertical grooves (21) on the inner walls of both the left and right sides.

6. The laser head accuracy calibration device for a laser level according to claim 1, characterized in that, The left and right sides of the lifting slider (20) are fixedly connected with vertical slide rods (22), and the lifting slider (20) is slidably connected to the vertical slide groove (21) through the vertical slide rods (22).

7. The laser head accuracy calibration device for a laser level according to claim 1, characterized in that, The front end of the first U-shaped frame (14) is flush with the front end of the horizontal fixed plate (18), and the rear end of the second U-shaped frame (6) is flush with the rear end of the horizontal fixed plate (18).

8. The laser head accuracy calibration device for a laser level according to claim 1, characterized in that, The laser generator (11) is fixedly connected to a mounting shaft (5) on the side away from the stepper motor (12), and the mounting shaft (5) is sleeved with the first U-shaped frame (14).

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