HUD visual positioning detection calibration device

Abstract

The utility model discloses an HUD visual positioning detection calibration device, which belongs to the technical field of vehicle detection and comprises a centering table provided with a first positioning groove and a second positioning groove. The calibration frame is correspondingly provided with a first positioning hole and a second positioning hole, the centering table is connected with the calibration frame through a first positioning pin and a second positioning pin, the peripheral surface of the first positioning pin is rhombic, and the end part of the second positioning pin is conical; the calibration frame is further provided with a calibration plate, and the relative positions of the calibration plate and the calibration frame are adjustable in the three-dimensional direction. According to the HUD visual positioning detection calibration device, through the matching form of the two positioning pins of different structures, the mode that calibration is conducted through a centering table in a traditional calibration form is avoided, and the problem that the calibration frame is not standard in positioning due to deviation of the centering table is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle detection, and in particular relates to a HUD visual positioning detection and calibration device. Background Art

[0002] At present, due to the widespread popularity of smart cars, more and more cars are equipped with HUD (Head-up Digital Display). HUD can project important driving information such as speed and navigation onto the windshield in front of the driver, allowing the driver to see important driving information such as speed and navigation without lowering or turning his head as much as possible.

[0003] Due to factors such as imaging optical design, production and assembly errors and windshield errors, the HUD projection image may have height deviation, left and right deviation, and projection image distortion on the windshield, which will make it difficult for the driver to identify the vehicle. Therefore, it is necessary to correct the HUD imaging position and image distortion to ensure the vehicle's HUD projection display quality.

[0004] In the existing HUD projection display quality control process, the chessboard position is mainly determined by the calibration frame, and then the chessboard position is identified by the robot camera to determine the standard position of the robot camera, and then the subsequent vehicle HUD imaging images are identified by the robot camera to judge the HUD projection display quality. However, the existing calibration frame uses a centering table for positioning, and the centering table itself is an assembly structure with poor accuracy, resulting in poor positioning accuracy of the calibration frame itself, and the positioning deviation of the corresponding adjusted and corrected robot camera is poor, and the vehicle HUD projection quality detection cannot be completed. Utility Model Content

[0005] In response to one or more of the above defects or improvement needs in the prior art, the utility model provides a HUD visual positioning detection and calibration device to solve the problem that the existing centering table and calibration frame have poor positioning accuracy, resulting in poor calibration accuracy of the robot camera and inability to effectively detect the vehicle HUD projection quality.

[0006] To achieve the above purpose, the utility model provides a HUD visual positioning detection and calibration device, which includes

[0007] A centering platform, wherein the centering platform is provided with a first positioning groove and a second positioning groove in a vertical direction;

[0008] A calibration frame, wherein a first positioning hole and a second positioning hole are correspondingly provided on the calibration frame, the first positioning hole is correspondingly provided to the first positioning groove, a first positioning pin is provided between the first positioning hole and the first positioning groove; the second positioning hole is correspondingly provided to the second positioning groove, a second positioning pin is provided between the second positioning hole and the second positioning groove; the first positioning pin matches the outer peripheral surface of one end of the first positioning groove to be a rhombus, and the second positioning pin matches the outer peripheral surface of one end of the second positioning groove to be a cone;

[0009] The calibration frame is provided with a calibration plate, and the relative position of the calibration plate and the calibration frame is adjustable along the three-dimensional direction.

[0010] As a further improvement of the present invention, the calibration frame is further provided with a plurality of moving wheels in the circumferential direction, and a lifting rod is provided between the plurality of moving wheels and the calibration frame, and the vertical heights of the calibration frame and the lifting rod are adjustable.

[0011] As a further improvement of the present invention, a connecting seat is further provided between the calibration frame and the lifting rod, and the connecting seat is arranged in a "Γ" shape. One end of the connecting seat is threadedly connected to the calibration frame, and the other end thereof is affixed to the end face of the lifting rod. The connecting seat is provided with a first sliding groove vertically toward one end of the lifting rod, and the lifting rod is provided with a rotating handle, and the rotating handle thread matches the first sliding groove.

[0012] As a further improvement of the present invention, at least two spherical support members are provided at one end of the calibration frame facing the centering platform, and the two spherical support members both include a locking screw connected to the calibration frame, and the vertical height of the locking screw and the calibration frame is adjustable. A support ball is provided at the lower end of the locking screw, and the two support balls and the second positioning pin form a triangular support point.

[0013] As a further improvement of the utility model, a mobile frame is further provided between the calibration frame and the calibration plate, the mobile frame is arranged vertically, one end of the mobile frame is fixedly connected to the calibration frame, and the other end thereof is provided with an adjustment platform, the adjustment platform is provided with an adjustment plate, and the calibration plate is arranged on the adjustment plate;

[0014] The adjustment plate and the adjustment platform are locked by a first bolt arranged along a first direction and a second bolt arranged along a second direction, and the relative positions of the adjustment platform and the adjustment plate are adjustable in the vertical direction.

[0015] As a further improvement of the present invention, the adjustment plate is provided with a first mounting groove along the longitudinal direction, the first mounting member is slidably matched with an adjustment rod, and the adjustment rod and the first mounting groove can be locked by threads;

[0016] The adjusting rod is provided with a transverse plate, the transverse plate is provided with a second sliding groove in the transverse direction, and the calibration plate is slidably matched in the second sliding groove.

[0017] As a further improvement of the present invention, a second mounting groove is provided on the adjustment platform, the adjustment plate falls into the second mounting groove, and the first bolt and the second bolt pass through the side wall of the second mounting groove and abut against the side wall of the adjustment plate.

[0018] As a further improvement of the utility model, it also includes a robot camera, which includes a robotic arm, one end of which is fixedly connected to one side of the centering platform, and one end of which can move freely; the other end of the robotic arm is connected to a detection camera, and the detection camera can be extended into the area where the calibration frame is located through the robotic arm.

[0019] As a further improvement of the utility model, a level is also provided on the calibration frame.

[0020] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0021] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0022] (1) The HUD visual positioning detection calibration device of the utility model is provided with a first positioning pin and a second positioning pin between the calibration frame and the centering table, and the first positioning pin and the second bolt have different structures. When the second positioning pin matches the second positioning groove, the first positioning pin does not completely match the first positioning groove, so that the calibration frame is not completely locked relative to the centering table, so that the position of the calibration frame in the horizontal direction can be adjusted; then, by adjusting the position of the calibration plate, the standard position of the calibration plate is determined by using a 3D scanner, and the calibration position of the robot camera is determined accordingly, and then the calibration frame can be removed or re-matched by releasing the lock between the calibration frame and the centering table, so as to verify the accuracy of the position of the robot camera. The HUD visual positioning detection calibration device in the present application avoids the method of using the centering table for calibration in the traditional calibration method by matching two positioning pins with different structures, and avoids the problem of non-standard positioning of the calibration frame caused by the deviation of the centering table itself.

[0023] (2) The HUD visual positioning detection calibration device of the utility model has movable wheels and a lifting rod structure arranged around the calibration frame. The calibration frame is lifted by the lifting rod to form a vehicle body-like structure. The displacement and transportation of the calibration frame can be completed by the movable wheels, which is more convenient as a whole. Moreover, the lifting structure of the lifting rod enables the calibration frame to be lowered after it is moved to the set position, so as to facilitate the horizontal adjustment and position locking of the calibration frame in the later stage.

[0024] (3) The HUD visual positioning detection and calibration device of the utility model forms a triangular support point through two spherical support frames and a second positioning pin, and realizes the horizontal arrangement of the calibration frame by adjusting the structure of the two spherical support frames, thereby ensuring that the calibration plate is in a horizontal state, thereby ensuring the horizontality of the image taken by the detection camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the HUD visual positioning detection and calibration device in the embodiment of the utility model;

[0026] Figure 2 It is a schematic diagram of the planar structure of the HUD visual positioning detection and calibration device in the embodiment of the utility model;

[0027] Figure 3 It is a side structural diagram of the HUD visual positioning detection and calibration device in an embodiment of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the first positioning pin in the embodiment of the utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the mobile frame in the embodiment of the utility model;

[0030] Figure 6 This is a schematic diagram of the planar structure of the adjustment platform in the embodiment of the utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the mobile frame in the embodiment of the utility model;

[0032] Figure 8 It is a schematic diagram of the structure of the calibration plate in the embodiment of the utility model.

[0033] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0034] 1. Centering table; 2. Calibration frame; 3. First positioning pin; 4. Second positioning pin; 5. Calibration plate; 6. Moving wheel; 7. Lifting rod; 8. Connecting seat; 9. Turning handle; 10. Locking screw; 11. Support ball; 12. Moving frame; 13. Adjustment table; 14. Adjustment plate; 15. First bolt; 16. Second bolt; 17. Adjustment rod; 18. Transverse plate; 19. Robotic arm; 20. Detection camera. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0036] In the description of the present invention, it should be understood that, unless otherwise specified, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, unless otherwise specified, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] Example:

[0041] See also Figures 1 to 8 The HUD visual positioning detection and calibration device in the preferred embodiment of the utility model includes a centering platform 1, which is provided with a first positioning slot and a second positioning slot in the vertical direction; and a calibration frame 2, which is provided with a first positioning hole and a second positioning hole correspondingly, the first positioning hole is arranged with the first positioning slot, and a first positioning pin 3 is arranged between the first positioning hole and the first positioning slot; and the second positioning hole is arranged correspondingly with the second positioning slot, and a second positioning pin 4 is arranged between the second positioning hole and the second positioning slot; secondly, the outer peripheral surface of the first positioning pin 3 matching one end of the first positioning slot is rhombus-shaped, and the second positioning pin 4 matching one end of the second positioning slot is conical. The calibration frame 2 is also provided with a calibration plate 5, and the relative position of the calibration plate 5 and the calibration frame 2 along the three-dimensional direction is adjustable.

[0042] The HUD visual positioning detection calibration device in the present application is provided with a first locating pin 3 and a second locating pin 4 between the calibration frame 2 and the centering platform 1, and the first locating pin 3 and the second bolt 16 have different structures. When the second locating pin 4 matches with the second locating groove, the first locating pin 3 does not completely match with the first locating groove, so that the calibration frame 2 is not completely locked relative to the centering platform 1, so that the position of the calibration frame 2 in the horizontal direction can be adjusted; then, by adjusting the position of the calibration plate 5, the standard position of the calibration plate 5 is determined by using a 3D scanner, and the calibration position of the robot camera is determined thereby, and then, by releasing the lock between the calibration frame 2 and the centering platform 1, the calibration frame 2 can be evacuated or re-matched to verify the accuracy of the position of the robot camera. The present application adopts a method of locking the relative position of the calibration frame 2 and the centering platform 1 by using the first locating pin 3 and the second locating pin 4. By setting two locating pins of different structures in the vertical direction, the two locating pins will not interfere with each other, so that both can be matched with the vertical locating groove, and when the second locating pin 4 matches the second locating groove, the calibration frame 2 still has room for movement, so that the horizontal position of the calibration frame 2 is adjustable; when the calibration frame 2 is adjusted to the horizontal, the calibration frame 2 is locked by the first locating pin 3 to ensure the horizontality of the calibration frame 2, and then the calibration plate 5 is adjusted in the three-dimensional direction to adjust the calibration plate 5 to the standard position to confirm the standard position of the robot camera. The HUD visual positioning detection calibration device in the present application avoids the method of using the centering platform 1 for calibration in the traditional calibration form by matching two locating pins of different structures, and avoids the problem of non-standard positioning of the calibration frame 2 caused by the deviation of the centering platform 1 itself.

[0043] It is worth noting that in the present application, the calibration frame 2, the centering platform 1, the second positioning groove, the second positioning pin 4, etc. all have assembly errors and matching errors. Therefore, after the second positioning groove is matched with the second positioning pin 4, the calibration frame 2 still has an adjustment range, and the horizontal adjustment of the calibration frame 2 can be completed.

[0044] Further, as a preferred embodiment of the utility model, the calibration frame 2 in the present application is also provided with a plurality of moving wheels 6 in the circumference, and a lifting rod 7 is provided between the plurality of moving wheels 6 and the calibration frame 2, and the vertical height of the calibration frame 2 and the lifting rod 7 is adjustable. The traditional calibration frame 2 mainly adopts the hoisting form, hoists the calibration frame 2 to the centering platform 1, and then adjusts the position of the calibration frame 2 by the roller structure on the bottom surface of the centering platform 1 to achieve the positioning of the calibration frame 2. The accuracy of the roller adjustment of the centering platform 1 itself is poor, and the movement of the calibration frame 2 is cumbersome. Based on this, the present application sets the moving wheels 6 and the lifting rod 7 structure in the circumference of the calibration frame 2, lifts the calibration frame 2 by the lifting rod 7, forms a structure similar to a vehicle body, and the displacement and transportation of the calibration frame 2 can be completed by the moving wheels 6, which is more convenient as a whole; and the lifting structure of the lifting rod 7 enables the calibration frame 2 to be lowered after it moves to the set position, so as to facilitate the horizontal adjustment and position locking of the calibration frame 2 in the later stage.

[0045] Further, as a specific embodiment of the utility model, a connecting seat 8 is further provided between the calibration frame 2 and the lifting rod 7 in the present application, and the connecting seat 8 is arranged in a "Γ" shape, one end of the connecting seat 8 is threadedly connected to the calibration frame 2, and the other end thereof is in contact with the end face of the lifting rod 7, and the connecting seat 8 is provided with a first sliding groove vertically toward one end of the lifting rod 7, and a rotating handle 9 is correspondingly provided on the lifting rod 7, and the rotating handle 9 thread matches the first sliding groove. The present application realizes the stable connection between the calibration frame 2 and the lifting rod 7 through the connecting seat 8 to ensure the stable lifting of the calibration frame 2 and realize the accurate adjustment of the position of the calibration frame 2. Secondly, the thread of the rotating handle 9 matches the thread of the first sliding groove, so that when the rotating handle 9 rotates correspondingly, the connecting seat 8 can drive the calibration frame 2 to lift vertically to realize the height adjustment of the calibration frame 2. Of course, the matching adjustment of the rotating handle 9 and the first sliding groove in the present application is only one form of vertical adjustment of the calibration frame 2, and other forms such as hydraulic lifting platforms can also be used to realize the vertical adjustment of the calibration frame 2.

[0046] Further, as a preferred embodiment of the utility model, the calibration frame 2 in the present application is provided with at least two spherical support frames at one end facing the centering platform 1, and the two spherical support frames both include a locking screw 10 connected to the calibration frame 2, the locking screw 10 and the calibration frame 2 are vertically height-adjustable, and a support ball 11 is provided at the lower end of the locking screw 10, and the two support balls 11 and the second positioning pin 4 form a triangular support point. When the calibration frame 2 is moved to the top of the centering platform 1, the calibration frame 2 supported by the moving wheel 6 is not in a completely horizontal state. At this time, the height of the calibration frame 2 needs to be adjusted vertically by the lifting rod 7, and the two spherical support frames prop up the calibration frame 2, and the moving wheel 6 floats in the air; the two support balls 11 and the second positioning pin 4 form a triangular support point, and then the vertical height of the locking screw 10 is adjusted so that the calibration frame 2 is finally in a horizontal state.

[0047] When the calibration frame 2 is in a non-horizontal state, the calibration plate 5 itself is in a tilted state, which will cause the standard of the final robot camera to be in a tilted state, and ultimately cause the corrected HUD projection to be in a tilted state, so the levelness of the calibration frame 2 itself is crucial. Based on this, the present application corresponds to setting a level on the calibration frame 2, and using the level to detect the overall levelness of the calibration frame 2. Of course, optionally, the level in the present application can also be external, and when the levelness of the calibration frame 2 needs to be adjusted, the level is placed on the upper surface of the calibration frame 2 to detect the levelness of the calibration frame 2.

[0048] Furthermore, as a specific embodiment of the utility model, a mobile frame 12 is further provided between the calibration frame 2 and the calibration plate 5 in the present application. The mobile frame 12 is arranged vertically, one end of the mobile frame 12 is fixedly connected to the calibration frame 2, and the other end thereof is provided with an adjustment platform 13, and an adjustment plate 14 is provided on the adjustment platform 13, and the calibration plate 5 is provided on the adjustment plate 14; the adjustment plate 14 and the adjustment platform 13 are locked by a first bolt 15 arranged along a first direction and a second bolt 16 arranged along a second direction, and the relative position of the adjustment platform 13 and the adjustment plate 14 is adjustable vertically. Since the calibration frame 2 needs to adjust its horizontality through a spherical support frame, and the calibration frame 2 itself is relatively low in height, it is necessary to lift the calibration plate 5 to the corresponding height position of the car head-up display through the vertically arranged mobile frame 12.

[0049] Preferably, the first direction and the second direction here are the length direction and the width direction of the adjustment platform 13 in the horizontal plane.

[0050] Furthermore, the adjustment platform 13 in the present application is provided with a second mounting groove, the adjustment plate 14 falls into the second mounting groove, and an adjustment gap is left between the adjustment plate 14 and the second mounting groove, and the first bolt 15 and the second bolt 16 respectively pass through the side wall of the second mounting groove and abut against the side wall of the adjustment plate 14. When the height of the adjustment plate 14 needs to be adjusted, the first bolt 15 and the second bolt 16 are first loosened to complete the height adjustment of the adjustment plate 14, and then the first bolt 15 and the second bolt 16 are tightened.

[0051] Furthermore, the adjustment plate 14 in the present application is provided with a first mounting groove in the longitudinal direction, and an adjustment rod 17 is slidably matched in the first mounting groove, and the adjustment rod 17 and the first mounting groove can be locked by threads; a transverse plate 18 is also provided on the adjustment rod 17, and a second sliding groove is provided in the transverse direction, and the calibration plate 5 is slidably matched in the second sliding groove. Specifically, the present application drives the displacement adjustment of the calibration plate 5 in the longitudinal direction by sliding matching between the adjustment plate 14 and the adjustment plate 14 in the longitudinal direction; and then drives the displacement adjustment of the calibration plate 5 in the transverse direction by sliding matching between the transverse plate 18 and the calibration plate 5 in the transverse direction, thereby completing the relative position adjustment of the calibration plate 5 and the calibration frame 2 in the three-dimensional direction.

[0052] Furthermore, the HUD visual positioning detection and calibration device in the present application may also include a robot camera, which includes a mechanical arm 19, one end of which is fixed to one side of the centering platform 1, and the other end of which is connected to a detection camera 20 and can move freely. In the present application, the mechanical arm 19 is arranged beside the centering platform 1, so that when the car to be inspected stops at the centering platform 1, the robot camera will not interfere with the car, and then the detection camera 20 is extended into the interior of the vehicle through the mechanical arm 19, so as to detect the head-up display of the vehicle and verify whether the head-up display of the vehicle is offset or distorted.

[0053] The working process of the HUD visual positioning detection and calibration device in the utility model is as follows:

[0054] The calibration frame 2 is lifted to a certain height by the lifting rod 7, and is moved to the top of the centering platform 1 by the moving wheel 6. The second positioning hole is aligned with the second positioning groove, and the calibration frame 2 is vertically lowered by turning the handle 9. The calibration frame 2 is in contact with the centering platform 1 through the spherical support, and the moving wheel 6 is suspended in the air; the calibration frame 2 is initially locked with the centering platform 1 by the second positioning pin 4, and the vertical height of the two spherical support members is adjusted. The horizontality of the calibration frame 2 is detected by a level meter. When the calibration frame 2 is in a horizontal state, the coordinate information of the calibration plate 5 is determined by a 3D scanner. , adjust the position of the calibration plate 5 in the three-dimensional direction through the mobile frame 12, so that the calibration plate 5 is close to the preset coordinate position, put the first positioning pin 3 into the first positioning groove, confirm the position of the calibration plate 5 through the 3D scanner, and continue to adjust the position of the calibration plate 5 until the accuracy difference between the position of the calibration plate 5 and the preset coordinate position in the three-dimensional direction is within ±1mm, lock the first positioning pin 3 in the first positioning groove, and the calibration frame 2 is locked; move the detection camera 20 to the set shooting position through the mechanical arm 19, and use the calibration plate 5 to calibrate the position of the detection camera 20.

[0055] When the position calibration of the detection camera 20 is completed, the calibration frame 2 is removed, and the vehicle to be inspected is moved to the set position above the centering platform 1. The robotic arm 19 drives the detection camera 20 to move to the calibration position inside the vehicle to be inspected. The detection camera 20 captures the head-up display image of the vehicle to be inspected to determine whether there is position deviation and distortion in the head-up display of the vehicle to be inspected.

[0056] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A HUD visual positioning detection and calibration device, characterized in that: include: A centering platform, wherein the centering platform is provided with a first positioning groove and a second positioning groove in a vertical direction; A calibration frame, wherein a first positioning hole and a second positioning hole are correspondingly provided on the calibration frame; the first positioning hole is correspondingly provided to the first positioning groove, and a first positioning pin is provided between the first positioning hole and the first positioning groove; the second positioning hole is correspondingly provided to the second positioning groove, and a second positioning pin is provided between the second positioning hole and the second positioning groove; the outer peripheral surface of one end of the first positioning pin matching the first positioning groove is rhombus-shaped, and the outer peripheral surface of one end of the second positioning pin matching the second positioning groove is conical; The calibration frame is also provided with a calibration plate, and the relative position of the calibration plate and the calibration frame along the three-dimensional direction is adjustable.

2. The HUD visual positioning detection and calibration device according to claim 1, characterized in that: The calibration frame is also provided with a plurality of moving wheels in the circumference thereof, and lifting rods are provided between the plurality of moving wheels and the calibration frame, and the vertical heights of the calibration frame and the lifting rods are adjustable.

3. The HUD visual positioning detection and calibration device according to claim 2, characterized in that: A connecting seat is also provided between the calibration frame and the lifting rod. The connecting seat is arranged in a "Γ" shape. One end of the connecting seat is threadedly connected to the calibration frame, and the other end thereof is attached to the end surface of the lifting rod. The connecting seat has a first sliding groove vertically opened toward one end of the lifting rod. A rotating handle is provided on the lifting rod, and the rotating handle thread matches the first sliding groove.

4. The HUD visual positioning detection and calibration device according to claim 1, characterized in that: The calibration frame is provided with at least two spherical support members at one end facing the centering platform, and the two spherical support members both include a locking screw connected to the calibration frame, the locking screw and the calibration frame are vertically height adjustable, a support ball is provided at the lower end of the locking screw, and the two support balls and the second positioning pin form a triangular support point.

5. The HUD visual positioning detection and calibration device according to claim 1, characterized in that: A mobile frame is further provided between the calibration frame and the calibration plate, the mobile frame is arranged vertically, one end of the mobile frame is fixedly connected to the calibration frame, and the other end of the mobile frame is provided with an adjustment platform, the adjustment platform is provided with an adjustment plate, and the calibration plate is arranged on the adjustment plate; The adjustment plate and the adjustment platform are locked by a first bolt arranged along a first direction and a second bolt arranged along a second direction, and the relative positions of the adjustment platform and the adjustment plate are adjustable in the vertical direction.

6. The HUD visual positioning detection and calibration device according to claim 5, characterized in that: The adjustment plate is provided with a first mounting groove in the longitudinal direction, an adjustment rod is slidably matched in the first mounting groove, and the adjustment rod and the first mounting groove can be locked by threads; The adjusting rod is provided with a transverse plate, the transverse plate is provided with a second sliding groove in the transverse direction, and the calibration plate is slidably matched in the second sliding groove.

7. The HUD visual positioning detection and calibration device according to claim 5, characterized in that: The adjustment platform is provided with a second installation groove, the adjustment plate falls into the second installation groove, and the first bolt and the second bolt pass through the side wall of the second installation groove and abut against the side wall of the adjustment plate.

8. The HUD visual positioning detection and calibration device according to claim 1, characterized in that: It also includes a robot camera, which includes a robot arm, one end of which is fixedly connected to one side of the centering platform, and the other end of which can move freely; the other end of the robot arm is connected to a detection camera, and the detection camera can be extended into the area where the calibration frame is located through the robot arm.

9. The HUD visual positioning detection and calibration device according to claim 4, characterized in that: A level is also provided on the calibration frame.

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