Three-axis movement mechanism for laser radar detection
By designing a three-axis motion mechanism, combining a lead screw module, an angle adjustment module, and a pitch motion module, the problem of requiring two machines for existing lidar detection was solved, enabling detection at 80° horizontally and 15° vertically, thus reducing the difficulty of detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-31
AI Technical Summary
Existing lidar detection cannot simultaneously achieve 80° horizontal and 15° pitch movement, which means that detection needs to be performed on two machines, increasing the difficulty of detection.
A three-axis motion mechanism was designed, comprising a lead screw module, an angle adjustment module, and a pitch motion module. The lead screw module enables back-and-forth movement, the angle adjustment module enables 80° horizontal movement, and the pitch motion module enables 15° pitch movement. Precise control is achieved by combining photoelectric switches and servo motors.
It enables the completion of horizontal 80° and vertical 15° detection on a single device, reducing detection difficulty and improving detection efficiency.
Smart Images
Figure CN224065125U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to laser radar detection technical field, concretely is a kind of three-axis motion mechanism for laser radar detection. BACKGROUND
[0002] In the production process of laser radar, it needs to be detected, and the signal emitted by the laser radar is received by the receiver in the direction of horizontal 80 ° and pitch 15 °. The strength of the signal.
[0003] However, the existing laser radar cannot realize the movement of horizontal 80 ° and pitch 15 ° at the same time during detection, so the existing detection needs to be detected on two machines, which increases the detection difficulty, so a three-axis motion mechanism for laser radar detection is needed. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of three-axis motion mechanism for laser radar detection, to solve the problem that the existing detection needs to be detected on two machines in the above background art.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of three-axis motion mechanism for laser radar detection, including mechanism base, the surface of the mechanism base is equipped with screw rod module, the slide of the screw rod module is connected with angle adjusting module, the angle adjusting module includes box, support frame, first servo motor, first photoelectric switch, rotating table and first sensing sheet, the box is fixedly connected on the slide of screw rod module, the surface of the box is equipped with first servo motor, the surface of the angle adjusting module is provided with pitch motion module, the pitch motion module is by rotating frame, casing, second sensing sheet, second photoelectric switch and second servo motor.
[0006] Preferably, the top end of the box is rotatably connected with the rotating table, and the first servo motor and the rotating table are drivingly connected through a synchronous belt wheel set, and the top end of the rotating table is fixedly connected with the support frame through a screw.
[0007] Preferably, the surface of the box is equipped with three groups of first photoelectric switches, and the three groups of first photoelectric switches are respectively located in the direction of horizontal 0 ° and ± 80 °, the surface of the rotating table is fixedly connected with the first sensing sheet through a screw, and the first sensing sheet and the first photoelectric switch are mutually matched.
[0008] Preferably, the rotating frame is hingedly connected to the inner wall of the support frame, the casing is fixed to the surface of the support frame, and the second servo motor is installed in the casing.
[0009] Preferably, the output end of the second servo motor is equipped with a shaft via a coupling, and one end of the shaft passes through the support frame and is fixed to the surface of the rotating frame. A second sensing plate is installed on the surface of the rotating frame, and a second photoelectric switch is installed on the surface of the support frame.
[0010] Preferably, the second photoelectric switch is provided in three sets, and the three sets of second photoelectric switches are respectively located in the horizontal 0° and ±15° directions, and all three sets of second photoelectric switches are fixed to the surface of the support frame, and the second photoelectric switches cooperate with the second sensing sheet.
[0011] Compared with existing technologies, the beneficial effects of this invention are as follows: The three-axis motion mechanism for lidar detection, by setting up an angle adjustment module, a pitch motion module, and a lead screw module, allows for back-and-forth movement via the lead screw module to adjust the distance between the lidar and the receiver. The angle adjustment module enables horizontal 80° movement adjustment of the lidar, and the pitch motion module enables vertical 15° movement adjustment. This invention, by setting up the angle adjustment module, pitch motion module, and lead screw module, achieves three-axis motion, enabling the completion of horizontal 80° and vertical 15° detection work on a single device, thus reducing the difficulty of detection. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0013] Figure 2 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 3 This is a three-dimensional exploded structural diagram of the present invention;
[0015] Figure 4 This is a partial cross-sectional structural diagram of the present invention.
[0016] In the diagram: 1. Mechanism base; 2. Angle adjustment module; 20. Housing; 21. Support frame; 22. First servo motor; 23. First photoelectric switch; 24. Rotating table; 25. First sensor; 3. Pitch motion module; 31. Rotating frame; 32. Housing; 33. Second sensor; 34. Second photoelectric switch; 35. Second servo motor; 4. Lead screw module. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0018] The present invention provides a structure for a three-axis motion mechanism for laser radar detection, as shown in the following figure. Figure 1 and Figure 2 As shown, it includes a mechanism base 1, a lead screw module 4 is mounted on the surface of the mechanism base 1, and a controller is also configured on the mechanism base 1.
[0019] Furthermore, such as Figure 2 and Figure 3 As shown, an angle adjustment module 2 is connected to the slide of the lead screw module 4. The angle adjustment module 2 includes a housing 20, a support frame 21, a first servo motor 22, a first photoelectric switch 23, a rotating platform 24, and a first sensing plate 25. The housing 20 is fixed to the slide of the lead screw module 4. The first servo motor 22 is installed on the surface of the housing 20. The rotating platform 24 is rotatably connected to the top of the housing 20. The first servo motor 22 and the rotating platform 24 are driven by a synchronous belt pulley group. The top of the rotating platform 24 is fixedly connected to the support frame 21 by screws. Three sets of first photoelectric switches 23 are installed on the surface of the housing 20. The three sets of first photoelectric switches 23 are located at 0° and ±80° respectively. The first sensing plate 25 is fixedly connected to the surface of the rotating platform 24 by screws. The first sensing plate 25 and the first photoelectric switch 23 cooperate with each other.
[0020] In implementation, the controller controls the first servo motor 22 to drive the support frame 21 to rotate. When the support frame 21 and the rotating frame 31 are at the 0 position, the first photoelectric switch 23 at 0° can sense the angle of the support frame 21 and the rotating frame 31 through the first sensing plate 25. When the support frame 21 and the rotating frame 31 rotate to 80° in the positive direction, the first sensing plate 25 contacts the first photoelectric switch 23 to send a signal. The controller receives the signal from the first photoelectric switch 23 at the 80° position and controls the first servo motor 22 to turn off according to these signals, so that the first servo motor 22 stops working. When the support frame 21 and the rotating frame 31 rotate to 80° in the reverse direction, the first photoelectric switch 23 at the 80° position in the reverse direction senses the position of the support frame 21 and the rotating frame 31 through the first sensing plate 25. The controller receives the signal from the first photoelectric switch 23 and controls the first servo motor 22 to turn off according to these signals, so that the first servo motor 22 stops working.
[0021] Furthermore, such as Figure 3 and Figure 4 As shown, the surface of the angle adjustment module 2 is provided with a pitch motion module 3. The pitch motion module 3 is composed of a rotating frame 31, a housing 32, a second sensor 33, a second photoelectric switch 34, and a second servo motor 35. The rotating frame 31 is hinged to the inner wall of the support frame 21, and the housing 32 is fixed to the surface of the support frame 21. The second servo motor 35 is installed inside the housing 32. The output end of the second servo motor 35 is mounted with a shaft through a coupling, and one end of the shaft passes through the support frame 21 and is fixed to the surface of the rotating frame 31. The surface of the rotating frame 31 is provided with a second sensor 33, and the surface of the support frame 21 is provided with a second photoelectric switch 34. There are three sets of second photoelectric switches 34, and the three sets of second photoelectric switches 34 are located in the horizontal 0° and ±15° directions, respectively. All three sets of second photoelectric switches 34 are fixed to the surface of the support frame 21, and the second photoelectric switches 34 cooperate with the second sensor 33.
[0022] In practice, the controller controls the second servo motor 35 inside the housing 32, causing the second servo motor 35 to drive the rotating frame 31 to rotate on the surface of the support frame 21. When the rotating frame 31 drives the lidar product to rotate 15 degrees forward, the second photoelectric switch 34 located at 15 degrees forward emits a signal under the trigger of the second sensor 33. The controller receives the signal from the second photoelectric switch 34 and controls the operation and shutdown of the second servo motor 35 according to these signals, turning off the second servo motor 35 so that the support frame 21 and the rotating frame 31 stop rotating. When the second servo motor 35 drives the product to rotate 15 degrees backward, the second sensor 33 will be triggered again. At this time, the controller receives the signal from the second photoelectric switch 34 at the position of 15 degrees backward and controls the second servo motor 35 to shut down according to these signals, so that the second servo motor 35 stops rotating.
[0023] Working principle: During use, the user installs the LiDAR product inside the rotating frame 31, so that the product and the second servo motor 35 are in a horizontal position. When the product needs to be detected, the user operates the controller. The controller controls the second servo motor 35 inside the housing 32, so that the second servo motor 35 drives the rotating frame 31 to rotate on the surface of the support frame 21. When the rotating frame 31 drives the LiDAR product to rotate 15 degrees forward, the second photoelectric switch 34 located at 15 degrees forward sends a signal under the trigger of the second sensor 33. The controller receives the signal from the second photoelectric switch 34 and controls the operation and shutdown of the second servo motor 35 according to these signals. Turning off the second servo motor 35 stops the rotation of the support frame 21 and the rotating frame 31. When the second servo motor 35 drives the product to rotate 15 degrees backward, the second sensor 33 will be triggered again. At this time, the controller receives the signal from the second photoelectric switch 34 at the 15-degree backward position and controls the second servo motor 35 to shut down according to these signals, so that the second servo motor 35 stops rotating, realizing the 15-degree pitch movement.
[0024] Subsequently, the controller controls the first servo motor 22 to drive the support frame 21 to rotate. When the support frame 21 and the rotating frame 31 are at the 0 position, the first photoelectric switch 23 at 0° can sense the angle of the support frame 21 and the rotating frame 31 through the first sensing plate 25. When the support frame 21 and the rotating frame 31 rotate to 80° in the positive direction, the first sensing plate 25 contacts the first photoelectric switch 23 to send a signal. The controller receives the signal from the first photoelectric switch 23 at the 80° position and controls the first servo motor 22 to turn off according to these signals, so that the first servo motor 22 stops working. When the support frame 21 and the rotating frame 31 rotate to 80° in the reverse direction, the first photoelectric switch 23 at the 80° position in the reverse direction senses the position of the support frame 21 and the rotating frame 31 through the first sensing plate 25. The controller receives the signal from the first photoelectric switch 23 and controls the first servo motor 22 to turn off according to these signals, so that the first servo motor 22 stops working, realizing the horizontal 80° swing rotation operation.
[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A three-axis motion mechanism for laser radar detection, comprising a mechanism base (1), characterized in that: The surface of the mechanism base (1) is provided with a screw module (4), the sliding seat of the screw module (4) is connected with an angle adjusting module (2), the angle adjusting module (2) comprises a box (20), a support frame (21), a first servo motor (22), a first photoelectric switch (23), a rotating table (24) and a first sensing sheet (25), the box (20) is fixedly connected on the sliding seat of the screw module (4), the surface of the box (20) is provided with the first servo motor (22), the surface of the angle adjusting module (2) is provided with a pitching movement module (3), the pitching movement module (3) is composed of a rotating frame (31), a machine shell (32), a second sensing sheet (33), a second photoelectric switch (34) and a second servo motor (35).
2. The three-axis motion mechanism for laser radar detection according to claim 1, characterized in that: The top end of the box (20) is rotatably connected with the rotating table (24), and the first servo motor (22) is in transmission cooperation with the rotating table (24) through a synchronous belt wheel set, and the top end of the rotating table (24) is fixedly connected with the support frame (21) through screws.
3. The three-axis motion mechanism for laser radar detection according to claim 1, characterized in that: The surface of the box (20) is provided with three groups of first photoelectric switches (23), and the three groups of first photoelectric switches (23) are respectively located in the directions of 0° and ±80°, the surface of the rotating table (24) is fixedly connected with the first sensing sheet (25) through screws, and the first sensing sheet (25) cooperates with the first photoelectric switch (23).
4. The three-axis motion mechanism for laser radar detection according to claim 1, characterized in that: The rotating frame (31) is hingedly connected to the inner wall of the support frame (21), the machine shell (32) is fixed to the surface of the support frame (21), and the second servo motor (35) is installed in the machine shell (32).
5. The three-axis motion mechanism for laser radar detection according to claim 1, characterized in that: The output end of the second servo motor (35) is provided with a shaft body through a shaft coupling, one end of the shaft body penetrates through the support frame (21) and is fixed to the surface of the rotating frame (31), the surface of the rotating frame (31) is provided with the second sensing sheet (33), and the surface of the support frame (21) is provided with the second photoelectric switch (34).
6. The three-axis motion mechanism for laser radar detection according to claim 1, characterized in that: The second photoelectric switch (34) is provided with three groups, and the three groups of second photoelectric switches (34) are respectively located in the directions of 0° and ±15°, and the three groups of second photoelectric switches (34) are fixedly connected to the surface of the support frame (21), and the second photoelectric switch (34) cooperates with the second sensing sheet (33).