A calibration tool for an automotive radar bracket

Abstract

The utility model discloses a kind of calibration tool of automobile radar support, including rack, the bottom of rack is fixedly installed with positioning frame, the top of positioning frame is installed with speed reducer, one end of speed reducer is installed with threaded rod, nut seat is screw-mounted on the outer wall of threaded rod, the outer wall of nut seat is fixedly installed with lifting plate, the inner wall of lifting plate is slidably connected with the inner wall of rack, the top of lifting plate is equipped with lower connecting plate, the upper of lower connecting plate is equipped with upper connecting plate, the top of upper connecting plate is fixed with several columns, the top of several columns is installed with placing piece table. The utility model not only can directly move and send radar placed at the top of placing piece table to specified height area to carry out assembly operation, but also can adjust the position of radar support placed at the top of placing piece table forwards and backwards, to improve the convenience when calibration tool is used, and reach the purpose of easily stabilizing and positioning radar support.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts assembly technology, specifically to a calibration fixture for an automotive radar bracket. Background Technology

[0002] Automotive radar is a core sensor in autonomous driving and driver assistance systems. The accuracy of its installation position directly affects radar detection accuracy and vehicle safety. Currently, radar brackets are mostly positioned manually by visual inspection or simple tools. Manual operation is easily affected by ambient light and operator skill, which can lead to bracket angle or position deviation. To improve this phenomenon, developing a calibration fixture for automotive radar brackets is of great practical significance.

[0003] A calibration fixture for preventing deformation of plastic supports, as described in reference announcement number CN218315188U, includes a fixed platform and several support clamping assemblies longitudinally arranged on the fixed platform. Each support clamping assembly includes an elbow clamp, a sliding carrier plate, and a bidirectional clamping member. The bidirectional clamping member includes a horizontal plate, two sets of longitudinal arm supports, and clamping heads. The longitudinal arm supports are movably disposed on the left and right sides of the horizontal plate. A second sliding channel is provided on the longitudinal arm supports, and several clamping heads are provided on the second sliding channel. This calibration fixture, by setting multiple sets of support clamping assemblies on the fixed platform, allows each set of support clamps... The holding component can accurately position and apply clamping force to the plastic bracket workpiece. During the clamping process, the user can adjust the position of the bidirectional clamping component on the sliding carrier plate, or adjust the horizontal and vertical position of the clamping head to meet the clamping needs of plastic brackets of different sizes, thereby preventing deformation of the plastic bracket during calibration and ensuring the processing accuracy of the plastic bracket. As can be seen from the above, although this calibration fixture can be used well, it is usually not convenient to adjust the overall height of the calibration fixture as needed, making it difficult to move the fixed radar bracket to the designated height area for assembly and processing operations, which still needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to provide a calibration fixture for an automotive radar bracket, in order to solve the problem that although the calibration fixture mentioned in the background art can be used well, it is usually not convenient to adjust the overall height of the calibration fixture as needed, and thus it is difficult to move the fixed radar bracket to the designated height area for assembly and processing operations.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a calibration fixture for an automotive radar bracket, comprising a frame, a positioning frame fixedly installed at the bottom of the frame, a reduction motor installed at the top of the positioning frame, a threaded rod installed at one end of the reduction motor, a nut seat threadedly installed on the outer wall of the threaded rod, a lifting plate fixedly installed on the outer wall of the nut seat, the inner wall of the lifting plate being slidably connected to the inner wall of the frame, a lower connecting plate provided at the top of the lifting plate, an upper connecting plate provided above the lower connecting plate, a plurality of columns fixed at the top of the upper connecting plate, and a placement platform installed at the top of the plurality of columns.

[0006] Preferably, a servo motor is mounted on the bottom end of the lower connecting plate via a bracket, and one end of the servo motor is provided with a chain drive mechanism. A lead screw is rotatably mounted on one side of the top end of the lower connecting plate via a bracket. The outer wall of the lead screw is connected to the bottom end of the upper connecting plate via a nut pair, and one end of the lead screw is connected to the upper end of the chain drive mechanism. The servo motor is configured so that the lead screw can be driven to rotate via the chain drive mechanism.

[0007] Preferably, the top of the lower connecting plates on both sides of the lead screw is equipped with a slide rail, and the top of the slide rail is slidably connected to the bottom of the upper connecting plate. The slide rail is used to limit the movement range of the upper connecting plate.

[0008] Preferably, the top of the placement platform is provided with a rectangular cavity, and a first magnetic block is installed at the center of the rectangular cavity. A second magnetic block is provided in the rectangular cavities on both sides of the first magnetic block. The arrangement of the first and second magnetic blocks is used to attract and place the steel base of the radar bracket.

[0009] Preferably, the outer wall of the placement platform is provided with several bases, and the top of the base is movably connected to a telescopic arm through a universal joint. A positioning arm is rotatably installed at the end of the telescopic arm away from the base. The positioning arm is used to press down and position the base of the radar bracket.

[0010] Preferably, a limiting arm is rotatably mounted on the outer wall of the positioning arm, and a limiting seat is rotatably mounted on the end of the limiting arm away from the positioning arm. The inner wall of the limiting seat is connected to the outer wall of the placement table. The limiting arm is used to limit the rotation range of the positioning arm.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the calibration fixture for the car radar bracket can not only directly move the radar mounted on the top of the mounting platform to the designated height area for assembly and processing, but also adjust the position of the radar bracket mounted on the top of the mounting platform back and forth to improve the convenience of using the calibration fixture, and achieve the purpose of easily and stably positioning the radar bracket.

[0012] (1) The threaded rod is driven to rotate by a geared motor, so that the nut seat slides on the outer wall of the threaded rod, so that the threaded rod drives the lifting plate to slide up and down on the inner wall of the frame, so as to adjust the height of the placement table and other related fixed components as needed, thereby enabling the radar installed on the top of the placement table to be directly moved to the designated height area for assembly and processing, thus improving the convenience of using the calibration tooling.

[0013] (2) The chain drive mechanism is driven by a servo motor to rotate, which drives the lead screw to rotate. At this time, the nut pair on the outer wall of the lead screw slides on the outer wall of the lead screw, which causes the upper connecting plate to slide on the top of the slide rail. This allows the position of the radar bracket placed on the top of the placement table to be adjusted back and forth, thereby further improving the convenience of using the calibration fixture.

[0014] (3) By placing the radar base directly on the top of the placement platform, the steel radar bracket base is attracted and positioned by the setting of the first magnetic block and the second magnetic block. Then, one end of the positioning arm is pressed down, so that one end of the positioning arm rotates around the telescopic arm. At this time, the telescopic arm extends and retracts accordingly, and the angle between the limiting arm and the telescopic arm changes adaptively. This allows one end of the positioning arm to abut against the upper surface of the radar bracket base and press down to position it, thereby achieving the purpose of easily and stably positioning the radar bracket. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0017] Figure 3 This is a front view structural diagram of the present invention;

[0018] Figure 4 This is a side view of the structure of this utility model.

[0019] In the diagram: 1. Frame; 2. Positioning frame; 3. Gear motor; 4. Lifting plate; 5. Lower connecting plate; 6. Slide rail; 7. Upper connecting plate; 8. Lead screw; 9. Placement platform; 10. Rectangular cavity; 11. First magnetic block; 12. Second magnetic block; 13. Base; 14. Telescopic arm; 15. Positioning arm; 16. Limiting arm; 17. Limiting seat; 18. Servo motor; 19. Chain drive mechanism; 20. Column; 21. Threaded rod; 22. Nut seat. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figure 1-4 This utility model provides an embodiment of a calibration fixture for an automotive radar bracket, comprising a frame 1, a positioning frame 2 fixedly mounted at the bottom of the frame 1, a reduction motor 3 mounted at the top of the positioning frame 2, a threaded rod 21 mounted at one end of the reduction motor 3, a nut seat 22 threadedly mounted on the outer wall of the threaded rod 21, a lifting plate 4 fixedly mounted on the outer wall of the nut seat 22, the inner wall of the lifting plate 4 being slidably connected to the inner wall of the frame 1, a lower connecting plate 5 at the top of the lifting plate 4, a servo motor 18 mounted at the bottom of the lower connecting plate 5 via a bracket, a chain drive mechanism 19 at one end of the servo motor 18, a lead screw 8 rotatably mounted on one side of the top of the lower connecting plate 5 via a bracket, the outer wall of the lead screw 8 being connected to the bottom of the upper connecting plate 7 via a nut pair, and one end of the lead screw 8 being connected to the upper end of the chain drive mechanism 19;

[0022] In use, the servo motor 18 is configured to drive the lead screw 8 to rotate via the chain drive mechanism 19;

[0023] The top of the lower connecting plates 5 on both sides of the lead screw 8 is equipped with a slide rail 6, and the top of the slide rail 6 is slidably connected to the bottom of the upper connecting plate 7.

[0024] In use, the movement range of the upper connecting plate 7 is limited by the setting of the slide rail 6;

[0025] Above the lower connecting plate 5 is an upper connecting plate 7. Several columns 20 are fixed at the top of the upper connecting plate 7. A placement platform 9 is installed at the top of the columns 20. A rectangular cavity 10 is provided at the top of the placement platform 9. A first magnetic block 11 is installed at the center of the rectangular cavity 10. A second magnetic block 12 is provided inside the rectangular cavities 10 on both sides of the first magnetic block 11.

[0026] In use, the first magnetic block 11 and the second magnetic block 12 are set to attract and place the steel base of the radar bracket.

[0027] The outer wall of the placement platform 9 is provided with several bases 13. The top of the base 13 is movably connected to a telescopic arm 14 through a universal joint. A positioning arm 15 is rotatably installed at the end of the telescopic arm 14 away from the base 13.

[0028] In use, the positioning arm 15 is used to press down and position the base of the radar bracket.

[0029] A limiting arm 16 is rotatably mounted on the outer wall of the positioning arm 15, and a limiting seat 17 is rotatably mounted on the end of the limiting arm 16 away from the positioning arm 15. The inner wall of the limiting seat 17 is connected to the outer wall of the placement table 9.

[0030] In use, the rotation range of the positioning arm 15 is limited by the setting of the limiting arm 16.

[0031] In this embodiment, the radar base is first placed on the top of the mounting platform 9. The first magnetic block 11 and the second magnetic block 12 are used to magnetically attach and position the steel radar bracket base. Then, one end of the positioning arm 15 is pressed down, causing it to rotate around the telescopic arm 14. The telescopic arm 14 extends and retracts accordingly, and the angle between the limiting arm 16 and the telescopic arm 14 changes adaptively. This allows one end of the positioning arm 15 to press against the upper surface of the radar bracket base for positioning. Afterwards, the servo motor 18 drives the chain drive mechanism 19 to operate, causing the chain drive mechanism 19 to drive... When the lead screw 8 rotates, the nut assembly on the outer wall of the lead screw 8 slides, causing the upper connecting plate 7 to slide on the top of the slide rail 6. This allows for the adjustment of the position of the radar bracket mounted on the top of the placement platform 9. Finally, the threaded rod 21 is driven to rotate by the reduction motor 3, causing the nut seat 22 to slide on the outer wall of the threaded rod 21. This allows the threaded rod 21 to drive the lifting plate 4 to slide up and down on the inner wall of the frame 1, adjusting the height of the placement platform 9 and other related fixed components as needed. This enables the radar mounted on the top of the placement platform 9 to be directly moved to a designated height area for assembly and processing, thus completing the use of the calibration fixture.

Claims

1. A calibration fixture for an automotive radar bracket, characterized in that: The system includes a frame (1), a positioning frame (2) is fixedly installed at the bottom of the frame (1), a geared motor (3) is installed at the top of the positioning frame (2), a threaded rod (21) is installed at one end of the geared motor (3), a nut seat (22) is threadedly installed on the outer wall of the threaded rod (21), a lifting plate (4) is fixedly installed on the outer wall of the nut seat (22), the inner wall of the lifting plate (4) is slidably connected to the inner wall of the frame (1), a lower connecting plate (5) is provided at the top of the lifting plate (4), an upper connecting plate (7) is provided above the lower connecting plate (5), a number of columns (20) are fixed at the top of the upper connecting plate (7), and a placement platform (9) is installed at the top of the number of columns (20).

2. The calibration fixture for an automotive radar bracket according to claim 1, characterized in that: A servo motor (18) is mounted on the bottom end of the lower connecting plate (5) via a bracket. One end of the servo motor (18) is provided with a chain drive mechanism (19). A lead screw (8) is rotatably mounted on one side of the top of the lower connecting plate (5) via a bracket. The outer wall of the lead screw (8) is connected to the bottom end of the upper connecting plate (7) via a nut pair. One end of the lead screw (8) is connected to the upper end of the chain drive mechanism (19).

3. The calibration fixture for an automotive radar bracket according to claim 2, characterized in that: The top of the lower connecting plates (5) on both sides of the lead screw (8) are equipped with slide rails (6), and the top of the slide rails (6) are slidably connected to the bottom of the upper connecting plate (7).

4. The calibration fixture for an automotive radar bracket according to claim 1, characterized in that: The top of the placement platform (9) is provided with a rectangular cavity (10), and a first magnetic block (11) is installed at the center of the rectangular cavity (10). A second magnetic block (12) is provided inside the rectangular cavities (10) on both sides of the first magnetic block (11).

5. The calibration fixture for an automotive radar bracket according to claim 1, characterized in that: The outer wall of the placement platform (9) is provided with several bases (13). The top of the base (13) is movably connected to a telescopic arm (14) through a universal joint. A positioning arm (15) is rotatably installed at the end of the telescopic arm (14) away from the base (13).

6. The calibration fixture for an automotive radar bracket according to claim 5, characterized in that: A limiting arm (16) is rotatably mounted on the outer wall of the positioning arm (15), and a limiting seat (17) is rotatably mounted on the end of the limiting arm (16) away from the positioning arm (15). The inner wall of the limiting seat (17) is connected to the outer wall of the placement platform (9).

Images