Testing equipment for vehicle body strength

Abstract

The utility model discloses a device for testing the strength of a vehicle body. The device comprises a foundation; the number of the supporting frames is two, and the two supporting frames are symmetrically arranged on the foundation; the transverse shaft mechanism is arranged between the two supporting frames; the lifting mechanism can drive the transverse shaft mechanism to ascend and descend; a longitudinal axis mechanism; a thrust mechanism; and a pressure head mechanism. The angles of the transverse shaft mechanism, the longitudinal shaft mechanism, the thrust mechanism and the pressure head mechanism in the front-back direction can be changed through the first speed reducer assembly, and the angles of the longitudinal shaft mechanism, the thrust mechanism and the pressure head mechanism in the left-right direction can be changed through the second speed reducer assembly, so that the angle of the pressure head mechanism can be flexibly adjusted; and after the angle of the pressure head mechanism is changed, the thrust mechanism and the pressure head mechanism are driven to descend under the action of the longitudinal axis mechanism to test the strength of the vehicle body, so that the vehicle body strength testing device can test different angles of the vehicle body.

Description

Technical Field

[0001] This utility model belongs to the field of automotive body technology, specifically relating to a testing device for vehicle body strength. Background Technology

[0002] The main function of a car body is to protect the driver and create a good aerodynamic environment. A good car body not only brings better performance, but also reflects the owner's personality. During the production of cars, car body strength testing equipment is used to test the strength. Most of the current car body strength testing equipment is vertically installed and does not have an angle adjustment device. When performing compression tests on the car body, the strength of the car body can only be tested vertically. Utility Model Content

[0003] (1) Technical problems to be solved

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a testing device for vehicle body strength, which has the advantage of testing the vehicle body from different angles.

[0005] (2) Technical solution

[0006] To solve the above-mentioned technical problems, this utility model provides a testing device for vehicle body strength, comprising:

[0007] foundation;

[0008] The support frame is provided in two parts, and the two support frames are symmetrically arranged on the foundation;

[0009] A horizontal axis mechanism, wherein the horizontal axis mechanism is disposed between two support frames;

[0010] A lifting mechanism, which can drive the horizontal axis mechanism to lift;

[0011] A longitudinal axis mechanism, which is installed inside the transverse axis mechanism;

[0012] A thrust mechanism, which is installed inside the transverse shaft mechanism;

[0013] A pressure head mechanism, which is mounted on the thrust mechanism;

[0014] The lifting mechanism drives the horizontal axis mechanism, the vertical axis mechanism, the thrust mechanism and the pressure head mechanism to lift as a whole. When the lifting reaches a suitable height, the vertical axis mechanism drives the thrust mechanism and the pressure head mechanism to descend to test the vehicle body strength.

[0015] When the horizontal axis mechanism drives the vertical axis mechanism and the thrust mechanism to rotate as a whole, it can change the angle of the pressure head mechanism. When the pressure head mechanism changes its angle, it can test the body strength at different angles.

[0016] Preferably, the transverse axis mechanism includes a first rectangular frame, with mounting brackets provided on both the left and right sides of the first rectangular frame, and the first rectangular frame is rotatably mounted on two mounting brackets. A first reducer assembly for driving the first rectangular frame to rotate is mounted on one of the mounting brackets, and a first locking seat assembly is mounted on the other mounting bracket. A second reducer assembly for driving the longitudinal axis mechanism, the thrust mechanism, and the pressure head mechanism to rotate as a whole is mounted on the back of the first rectangular frame, and a second locking seat assembly is mounted on the front of the first rectangular frame.

[0017] Furthermore, the lifting mechanism includes a lifting motor fixedly connected to the top of each support frame. The output shaft of the lifting motor is equipped with a coupling, and a screw is installed on the coupling. The mounting bracket has a circular hole for the screw to pass through. The end of the screw away from the coupling passes through the circular hole and is rotatably connected to the bottom of the support frame through a bearing. A nut is threaded onto the screw, and the nut is fixedly connected to a nut fixing plate. The nut fixing plate is fixedly connected to the mounting bracket.

[0018] Furthermore, the longitudinal axis mechanism includes a second rectangular frame, which is rotatably mounted inside the first rectangular frame. A hydraulic cylinder mounting seat is fixedly mounted inside the second rectangular frame, and a hydraulic cylinder is fixedly mounted on the hydraulic cylinder mounting seat. A through groove for the extension and retraction end of the hydraulic cylinder is provided in the middle of the hydraulic cylinder mounting seat.

[0019] Furthermore, the thrust mechanism includes an ejector frame disposed on the second rectangular frame. A connecting plate that is fixedly connected to the telescopic end of the hydraulic cylinder is fixedly connected to the inner wall of the bottom end of the ejector frame. An intermediate plate is fixedly connected to the bottom of the ejector frame. A force sensor is fixedly installed at the bottom of the intermediate plate. A force sensor mounting plate is fixedly installed at the end of the force sensor away from the intermediate plate. An ejector plate is fixedly installed at the end of the force sensor mounting plate away from the intermediate plate.

[0020] Furthermore, the pressure head mechanism includes a loading column fixedly connected to the bottom of the ejector plate, with a pressure head fixedly installed at the end of the loading column away from the ejector plate, and extension columns fixedly installed on both the left and right sides of the pressure head.

[0021] Furthermore, a first sliding block is fixedly connected to the side of the mounting bracket near the support frame. The first sliding block is slidably connected to the first slide rail, and the first slide rail is fixedly connected to the support frame.

[0022] Furthermore, a second slide rail is fixedly connected to both sides of the ejector frame, and a second sliding block that cooperates with the second slide rail is fixedly connected to the inner walls of both sides of the second rectangular frame, and the second slide rail and the second sliding block are slidably connected.

[0023] Furthermore, the first reducer assembly and the second reducer assembly have the same structure. Both the first reducer assembly and the second reducer assembly include a drive motor. The output shaft of the drive motor is equipped with a reducer. The output shaft of the reducer is fixedly connected to a first rotating shaft. The outer surface of the first rotating shaft is fixedly connected to the inner ring of a first bearing. The outer surface of the first bearing is fixedly connected to a first rotating fixed sleeve. A first hydraulic expansion sleeve is installed between the first rotating fixed sleeve and the first rotating shaft. A first fixed bracket is provided on the outside of the first hydraulic expansion sleeve. The two ends of the first fixed bracket are respectively fixedly installed on the first rotating fixed sleeve and the reducer.

[0024] The first rotating fixed sleeve of the first reducer assembly is fixedly installed on the mounting bracket, the first rotating shaft of the first reducer assembly is fixedly connected to the first rectangular frame, the first rotating fixed sleeve of the second reducer assembly is fixedly installed on the first rectangular frame, and the first rotating shaft of the second reducer assembly is fixedly connected to the second rectangular frame.

[0025] Furthermore, the first locking seat assembly and the second locking seat assembly have the same structure. Both the first locking seat assembly and the second locking seat assembly include a second rotating shaft. The outer surface of the second rotating shaft is fixedly connected to the inner ring of the second bearing. A second rotating fixed sleeve is fixedly connected to the outer surface of the second bearing. A second hydraulic expansion sleeve is installed between the second rotating fixed sleeve and the second rotating shaft. A second fixed bracket is provided on the outside of the second hydraulic expansion sleeve. One end of the second fixed bracket is fixedly installed on the second rotating fixed sleeve, and the other end of the second fixed bracket is fixedly connected to a locking seat.

[0026] The second rotating fixing sleeve of the first locking seat assembly is fixedly installed on the mounting bracket. The second rotating shaft of the first locking seat assembly is fixedly connected to the first rectangular frame. The second rotating fixing sleeve of the second locking seat assembly is fixedly installed on the first rectangular frame. The second rotating shaft of the second locking seat assembly is fixedly connected to the second rectangular frame.

[0027] Beneficial effects

[0028] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0029] This invention uses a first reducer assembly to change the angles of the transverse axis mechanism, longitudinal axis mechanism, thrust mechanism, and pressure head mechanism in the front-rear direction, and a second reducer assembly to change the angles of the longitudinal axis mechanism, thrust mechanism, and pressure head mechanism in the left-right direction. This allows the angle of the pressure head mechanism to be flexibly adjusted. After the angle of the pressure head mechanism is changed, the thrust mechanism and pressure head mechanism are driven to descend under the action of the longitudinal axis mechanism to test the vehicle body strength. Thus, this invention can test different angles of the vehicle body. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model.

[0031] Figure 2 This is a front view schematic diagram of this utility model.

[0032] Figure 3 This is a three-dimensional schematic diagram of the present invention.

[0033] Figure 4 This is a three-dimensional schematic diagram of the lifting mechanism of this utility model.

[0034] Figure 5 This is a three-dimensional schematic diagram of the first rectangular frame of this utility model.

[0035] Figure 6 This is a three-dimensional schematic diagram of the second rectangular frame of this utility model.

[0036] Figure 7 This is a three-dimensional schematic diagram of the thrust mechanism of this utility model.

[0037] Figure 8 This is a three-dimensional schematic diagram of the pressure head mechanism of this utility model.

[0038] Figure 9 This is a cross-sectional schematic diagram of the first rectangular frame of this utility model.

[0039] Figure 10 This is a utility model Figure 9 An enlarged schematic diagram of the structure at point A in the middle.

[0040] Figure 11 This is a utility model Figure 9 Enlarged schematic diagram of the structure at point B.

[0041] The labels in the attached diagram are as follows: 1. Foundation; 2. Support frame; 3. Horizontal axis mechanism; 4. Lifting mechanism; 5. Vertical axis mechanism; 6. Thrust mechanism; 7. Press head mechanism; 201. First slide rail; 301. First rectangular frame; 302. Mounting bracket; 303. First reducer assembly; 304. First locking seat assembly; 305. Second reducer assembly; 306. Second locking seat assembly; 401. Lifting motor; 402. Coupling; 403. Screw; 404. Nut; 405. Nut fixing plate; 501. Second rectangular frame; 502. Hydraulic cylinder mounting seat; 503. Hydraulic cylinder; 601. Ejection frame; 602. Connecting plate; 60 3. Intermediate plate; 604. Force sensor; 605. Force sensor mounting plate; 606. Ejector plate; 701. Loading column; 702. Pressure head; 703. Extension column; 5011. Second sliding block; 6011. Second slide rail; 3031. Drive motor; 3032. Reducer; 3033. First rotating shaft; 3034. First bearing; 3035. First rotating fixed sleeve; 3036. First hydraulic expansion sleeve; 3037. First fixed bracket; 3061. Second rotating shaft; 3062. Second bearing; 3063. Second rotating fixed sleeve; 3064. Second hydraulic expansion sleeve; 3065. Second fixed bracket; 3066. Locking seat. Detailed Implementation

[0042] This specific embodiment is a testing device for vehicle body strength, and its structural schematic diagram is shown below. Figures 1-11 As shown, the testing equipment for vehicle body strength includes a base 1, a support frame 2, a transverse axis mechanism 3, a lifting mechanism 4, a longitudinal axis mechanism 5, a thrust mechanism 6, and a pressure head mechanism 7. There are two support frames 2, which are symmetrically arranged on the base 1. The transverse axis mechanism 3 is located between the two support frames 2. The lifting mechanism 4 can drive the transverse axis mechanism 3 to rise and fall. The longitudinal axis mechanism 5 is installed inside the transverse axis mechanism 3. The thrust mechanism 6 is installed inside the transverse axis mechanism 3. The pressure head mechanism 7 is installed on the thrust mechanism 6.

[0043] The lifting mechanism 4 drives the horizontal axis mechanism 3, the vertical axis mechanism 5, the thrust mechanism 6 and the pressure head mechanism 7 to lift as a whole. When the lifting mechanism is matched with the height of the vehicle body, the vertical axis mechanism 5 drives the thrust mechanism 6 and the pressure head mechanism 7 to descend to test the strength of the vehicle body.

[0044] When the horizontal axis mechanism 3 drives the vertical axis mechanism 5 and the thrust mechanism 6 to rotate as a whole, it can change the angle of the pressure head mechanism 7. When the pressure head mechanism 7 changes its angle, it can test the body strength at different angles.

[0045] When using the testing equipment of this utility model, the vehicle body is placed between two support frames 2, and then the horizontal axis mechanism 3, the vertical axis mechanism 5, the thrust mechanism 6 and the pressure head mechanism 7 are lifted and lowered as a whole through the lifting mechanism 4. After the lifting and lowering is matched with the height of the vehicle body, the vertical axis mechanism 5 drives the thrust mechanism 6 and the pressure head mechanism 7 to descend to test the strength of the vehicle body.

[0046] When the horizontal axis mechanism 3 drives the vertical axis mechanism 5 and the thrust mechanism 6 to rotate as a whole, it can change the angle of the pressure head mechanism 7. After the angle of the pressure head mechanism 7 changes, it drives the thrust mechanism 6 and the pressure head mechanism 7 to descend under the action of the vertical axis mechanism 5 to test the body strength, thus enabling this utility model to test different angles of the body.

[0047] Example

[0048] The horizontal axis mechanism 3 includes a first rectangular frame 301. Mounting brackets 302 are provided on both the left and right sides of the first rectangular frame 301. The first rectangular frame 301 is rotatably mounted on the two mounting brackets 302. A first reducer assembly 303 that drives the first rectangular frame 301 to rotate is mounted on one mounting bracket 302. A first locking seat assembly 304 is mounted on the other mounting bracket 302. A second reducer assembly 305 that drives the vertical axis mechanism 5, the thrust mechanism 6 and the pressure head mechanism 7 to rotate as a whole is mounted on the back of the first rectangular frame 301. A second locking seat assembly 306 is mounted on the front of the first rectangular frame 301.

[0049] The first reducer assembly 303 and the second reducer assembly 305 have the same structure. Both the first reducer assembly 303 and the second reducer assembly 305 include a drive motor 3031. A reducer 3032 is mounted on the output shaft of the drive motor 3031. A first rotating shaft 3033 is fixedly connected to the output shaft of the reducer 3032. The outer surface of the first rotating shaft 3033 is fixedly connected to the inner ring of the first bearing 3034. A first rotating fixed sleeve 3035 is fixedly connected to the outer surface of the first bearing 3034. A first hydraulic expansion sleeve 3036 is installed between the first rotating fixed sleeve 3035 and the first rotating shaft 3033. A first fixed bracket 3037 is provided on the outside of the first hydraulic expansion sleeve 3036. The two ends of the first fixed bracket 3037 are respectively fixedly installed on the first rotating fixed sleeve 3035 and the reducer 3032.

[0050] The first rotating fixed sleeve 3035 of the first reducer assembly 303 is fixedly installed on the mounting bracket 302, the first rotating shaft 3033 of the first reducer assembly 303 is fixedly connected to the first rectangular frame 301, the first rotating fixed sleeve 3035 of the second reducer assembly 305 is fixedly installed on the first rectangular frame 301, and the first rotating shaft 3033 of the second reducer assembly 305 is fixedly connected to the second rectangular frame 501.

[0051] The first locking seat assembly 304 and the second locking seat assembly 306 have the same structure. Both the first locking seat assembly 304 and the second locking seat assembly 306 include a second rotating shaft 3061. The outer surface of the second rotating shaft 3061 is fixedly connected to the inner ring of the second bearing 3062. The outer surface of the second bearing 3062 is fixedly connected to a second rotating fixing sleeve 3063. A second hydraulic expansion sleeve 3064 is installed between the second rotating fixing sleeve 3063 and the second rotating shaft 3061. A second fixing bracket 3065 is provided on the outside of the second hydraulic expansion sleeve 3064. One end of the second fixing bracket 3065 is fixedly installed on the second rotating fixing sleeve 3063, and the other end of the second fixing bracket 3065 is fixedly connected to a locking seat 3066.

[0052] The second rotating fixing sleeve 3063 of the first locking seat assembly 304 is fixedly installed on the mounting bracket 302. The second rotating shaft 3061 of the first locking seat assembly 304 is fixedly connected to the first rectangular frame 301. The second rotating fixing sleeve 3063 of the second locking seat assembly 306 is fixedly installed on the first rectangular frame 301. The second rotating shaft 3061 of the second locking seat assembly 306 is fixedly connected to the second rectangular frame 501.

[0053] When adjusting the angle in the front-back direction: start the drive motor 3031 of the first reducer assembly 303 on the mounting bracket 302. The drive motor 3031 drives the first rotating shaft 3033 to rotate with the cooperation of the reducer 3032. The first rotating shaft 3033 drives the first rectangular frame 301 fixedly connected to it to rotate in the front-back direction. When the first rectangular frame 301 rotates, it can drive the second rotating shaft 3061 to rotate. When the first rectangular frame 301 rotates in the front-back direction, it can drive the longitudinal axis mechanism 5, the thrust mechanism 6 and the pressure head mechanism 7 to rotate in the front-back direction as a whole.

[0054] When adjusting the angle in the left and right directions: the drive motor 3031 of the second reducer assembly 305 on the first rectangular frame 301 is started. The drive motor 3031 drives the first rotating shaft 3033 to rotate with the cooperation of the reducer 3032. The first rotating shaft 3033 drives the second rectangular frame 501 fixedly connected to it to rotate in the left and right directions. When the second rectangular frame 501 rotates, it can drive the second rotating shaft 3061 to rotate. When the second rectangular frame 501 rotates in the front and back directions, it can drive the thrust mechanism 6 and the pressure head mechanism 7 to rotate as a whole in the left and right directions.

[0055] Therefore, with the cooperation of the first reducer assembly 303, the first locking seat assembly 304, the second reducer assembly 305 and the second locking seat assembly 306, the longitudinal axis mechanism 5, the thrust mechanism 6 and the pressure head mechanism 7 can change their angles, thereby enabling the testing of different angles of the vehicle body.

[0056] The lifting mechanism 4 includes a lifting motor 401 fixedly connected to the top of each support frame 2. The output shaft of the lifting motor 401 is equipped with a coupling 402. A screw 403 is installed on the coupling 402. A circular hole for the screw 403 to pass through is provided on the mounting bracket 302. The end of the screw 403 away from the coupling 402 passes through the circular hole and is rotatably connected to the bottom of the support frame 2 through a bearing. A nut 404 is threadedly connected to the screw 403. The nut 404 is fixedly connected to a nut fixing plate 405. The nut fixing plate 405 is fixedly connected to the mounting bracket 302.

[0057] When adjusting the overall height of the horizontal axis mechanism 3, the vertical axis mechanism 5, the thrust mechanism 6, and the pressure head mechanism 7, the lifting motor 401 is started. With the cooperation of the lifting motor 401 and the coupling 402, the screw 403 can be driven to rotate. When the screw 403 rotates clockwise, it can drive the nut 404 to move downward. During the downward movement of the nut 404, it can drive the nut fixing plate 405 to move downward. During the downward movement of the nut fixing plate 405, it can drive the mounting bracket 302 to move downward. During the downward movement of the mounting bracket 302, it can drive the horizontal axis mechanism 3 to move downward. During the downward movement of the horizontal axis mechanism 3, it can drive the vertical axis mechanism 5, the thrust mechanism 6, and the pressure head mechanism 7 to move downward.

[0058] Similarly, when the screw 403 rotates counterclockwise, it can cause the horizontal axis mechanism 3 to move downward, thereby driving the vertical axis mechanism 5, the thrust mechanism 6 and the pressure head mechanism 7 to move upward.

[0059] Therefore, with the cooperation of the lifting motor 401, coupling 402, screw 403, nut 404 and nut fixing plate 405, the horizontal shaft mechanism 3, vertical shaft mechanism 5, thrust mechanism 6 and pressure head mechanism 7 can be lifted as a whole, thereby adjusting the horizontal shaft mechanism 3, vertical shaft mechanism 5, thrust mechanism 6 and pressure head mechanism 7 to a suitable height position with respect to the vehicle body.

[0060] The longitudinal axis mechanism 5 includes a second rectangular frame 501, which is rotatably mounted inside the first rectangular frame 301. A hydraulic cylinder mounting seat 502 is fixedly mounted inside the second rectangular frame 501, and a hydraulic cylinder 503 is fixedly mounted on the hydraulic cylinder mounting seat 502. A through slot is provided in the middle of the hydraulic cylinder mounting seat 502 for the extension and retraction end of the hydraulic cylinder 503 to pass through.

[0061] The thrust mechanism 6 includes an ejector frame 601 disposed on the second rectangular frame 501. A connecting plate 602 is fixedly connected to the inner wall of the bottom end of the ejector frame 601 and is fixedly connected to the telescopic end of the hydraulic cylinder 503. The telescopic end of the hydraulic cylinder 503 is fixedly connected to the top of the connecting plate 602 through a through groove. An intermediate plate 603 is fixedly connected to the bottom of the ejector frame 601. A force sensor 604 is fixedly installed at the bottom of the intermediate plate 603. A force sensor mounting plate 605 is fixedly installed at the end of the force sensor 604 away from the intermediate plate 603. An ejector plate 606 is fixedly installed at the end of the force sensor mounting plate 605 away from the intermediate plate 603.

[0062] The pressure head mechanism 7 includes a loading column 701 fixedly connected to the bottom of the ejector plate 606. A pressure head 702 is fixedly installed at one end of the loading column 701 away from the ejector plate 606. An extension column 703 is fixedly installed on both the left and right sides of the pressure head 702.

[0063] After the horizontal axis mechanism 3, the vertical axis mechanism 5, the thrust mechanism 6, and the pressure head mechanism 7 are adjusted to a suitable height position relative to the vehicle body, the hydraulic cylinder 503 is activated. The telescopic end of the hydraulic cylinder 503 drives the connecting plate 602 to move closer to the vehicle body. During the movement, the connecting plate 602 can drive the ejector frame 601 to move. The ejector frame 601 drives the intermediate plate 603, the force sensor 604, the force sensor mounting plate 605, the ejector plate 606, the loading column 701, and the pressure head 702 to move closer to the vehicle body until the pressure head 702 presses against the vehicle body, and the vehicle body strength data can be obtained through the force sensor 604.

[0064] A first sliding block is fixedly connected to the side of the mounting bracket 302 near the support frame 2. The first sliding block is slidably connected to the first slide rail 201, and the first slide rail 201 is fixedly connected to the support frame 2.

[0065] The first slide rail 201 and the first sliding block work together to guide the vertical movement of the mounting bracket 302, thus ensuring that the horizontal axis mechanism 3, the vertical axis mechanism 5, the thrust mechanism 6 and the pressure head mechanism 7 do not deviate when moving vertically.

[0066] The two sides of the ejector frame 601 are fixedly connected with the second slide rail 6011, and the inner walls of the left and right sides of the second rectangular frame 501 are fixedly connected with the second sliding block 5011 that cooperates with the second slide rail 6011, and the second slide rail 6011 and the second sliding block 5011 are slidably connected.

[0067] The cooperation between the second sliding block 5011 and the second slide rail 6011 guides the movement of the ejector frame 601, thus preventing the thrust mechanism 6 and the pressure head mechanism 7 from shifting during movement.

[0068] In summary, this utility model can change the angles of the transverse axis mechanism 3, the longitudinal axis mechanism 5, the thrust mechanism 6, and the pressure head mechanism 7 in the front-rear direction through the first reducer assembly 303, and can change the angles of the longitudinal axis mechanism 5, the thrust mechanism 6, and the pressure head mechanism 7 in the left-right direction through the second reducer assembly 305. This allows the angle of the pressure head mechanism 7 to be flexibly adjusted. After the angle of the pressure head mechanism 7 is changed, the thrust mechanism 6 and the pressure head mechanism 7 are driven to descend under the action of the longitudinal axis mechanism 5 to test the vehicle body strength. Thus, this utility model can test different angles of the vehicle body.

[0069] All technical features in this embodiment can be freely combined according to actual needs.

[0070] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A testing device for vehicle body strength, characterized in that: include: Foundation (1); Support frame (2), two support frames (2) are provided, and the two support frames (2) are symmetrically arranged on the foundation (1); A horizontal axis mechanism (3) is disposed between two support frames (2); The lifting mechanism (4) is capable of driving the horizontal axis mechanism (3) to lift. The longitudinal axis mechanism (5) is installed inside the transverse axis mechanism (3); A thrust mechanism (6) is installed inside the transverse shaft mechanism (3); A pressure head mechanism (7) is mounted on a thrust mechanism (6); The lifting mechanism (4) drives the horizontal axis mechanism (3), the vertical axis mechanism (5), the thrust mechanism (6) and the pressure head mechanism (7) to lift as a whole, and after lifting, the vertical axis mechanism (5) drives the thrust mechanism (6) and the pressure head mechanism (7) to descend to test the body strength; When the horizontal axis mechanism (3) drives the vertical axis mechanism (5) and the thrust mechanism (6) to rotate as a whole, it can change the angle of the pressure head mechanism (7). When the pressure head mechanism (7) changes its angle, it can test the body strength at different angles.

2. The testing equipment for vehicle body strength according to claim 1, characterized in that, The horizontal axis mechanism (3) includes a first rectangular frame (301). Mounting brackets (302) are provided on both the left and right sides of the first rectangular frame (301). The first rectangular frame (301) is rotatably mounted on the two mounting brackets (302). A first speed reducer assembly (303) that drives the first rectangular frame (301) to rotate is mounted on one of the mounting brackets (302). A first locking seat assembly (304) is mounted on the other mounting bracket (302). A second speed reducer assembly (305) that drives the longitudinal axis mechanism (5), the thrust mechanism (6), and the pressure head mechanism (7) to rotate as a whole is mounted on the back of the first rectangular frame (301). A second locking seat assembly (306) is mounted on the front of the first rectangular frame (301).

3. The testing equipment for vehicle body strength according to claim 2, characterized in that, The lifting mechanism (4) includes a lifting motor (401) fixedly connected to the top of each support frame (2). The output shaft of the lifting motor (401) is equipped with a coupling (402). A screw (403) is installed on the coupling (402). A circular hole for the screw (403) to pass through is provided on the mounting bracket (302). The end of the screw (403) away from the coupling (402) passes through the circular hole and is rotatably connected to the bottom of the support frame (2) through a bearing. A nut (404) is threaded onto the screw (403). The nut (404) is fixedly connected to a nut fixing plate (405). The nut fixing plate (405) is fixedly connected to the mounting bracket (302).

4. The testing equipment for vehicle body strength according to claim 2, characterized in that, The longitudinal axis mechanism (5) includes a second rectangular frame (501), which is rotatably mounted inside the first rectangular frame (301). A hydraulic cylinder mounting seat (502) is fixedly mounted inside the second rectangular frame (501), and a hydraulic cylinder (503) is fixedly mounted on the hydraulic cylinder mounting seat (502). A through slot is provided in the middle of the hydraulic cylinder mounting seat (502) for the extension and retraction end of the hydraulic cylinder (503) to pass through.

5. The testing equipment for vehicle body strength according to claim 4, characterized in that, The thrust mechanism (6) includes an ejector frame (601) disposed on the second rectangular frame (501). The bottom inner wall of the ejector frame (601) is fixedly connected to a connecting plate (602) which is fixedly connected to the telescopic end of the hydraulic cylinder (503). The bottom of the ejector frame (601) is fixedly connected to an intermediate plate (603). A force sensor (604) is fixedly installed at the bottom of the intermediate plate (603). A force sensor mounting plate (605) is fixedly installed at the end of the force sensor (604) away from the intermediate plate (603). An ejector plate (606) is fixedly installed at the end of the force sensor mounting plate (605) away from the intermediate plate (603).

6. The testing equipment for vehicle body strength according to claim 5, characterized in that, The pressure head mechanism (7) includes a loading column (701) fixedly connected to the bottom of the ejector plate (606). A pressure head (702) is fixedly installed at one end of the loading column (701) away from the ejector plate (606). An extension column (703) is fixedly installed on both the left and right sides of the pressure head (702).

7. The testing equipment for vehicle body strength according to claim 2, characterized in that, The mounting bracket (302) is fixedly connected to a first sliding block on the side near the support frame (2). The first sliding block is slidably connected to the first slide rail (201), and the first slide rail (201) is fixedly connected to the support frame (2).

8. The testing equipment for vehicle body strength according to claim 5, characterized in that, The ejector frame (601) is fixedly connected to both sides of the second slide rail (6011), and the inner walls of the left and right sides of the second rectangular frame (501) are fixedly connected to the second sliding block (5011) that cooperates with the second slide rail (6011), and the second slide rail (6011) and the second sliding block (5011) are slidably connected.

9. The testing equipment for vehicle body strength according to claim 4, characterized in that, The first reducer assembly (303) and the second reducer assembly (305) have the same structure. Both the first reducer assembly (303) and the second reducer assembly (305) include a drive motor (3031). The output shaft of the drive motor (3031) is equipped with a reducer (3032). The output shaft of the reducer (3032) is fixedly connected to a first rotating shaft (3033). The outer surface of the first rotating shaft (3033) is fixedly connected to the inner ring of a first bearing (3034). The outer surface of the first bearing (3034) is fixedly connected to a first rotating fixed sleeve (3035). A first hydraulic expansion sleeve (3036) is installed between the first rotating fixed sleeve (3035) and the first rotating shaft (3033). A first fixed bracket (3037) is provided on the outside of the first hydraulic expansion sleeve (3036). The two ends of the first fixed bracket (3037) are respectively fixedly installed on the first rotating fixed sleeve (3035) and the reducer (3032). The first rotating fixed sleeve (3035) of the first reducer assembly (303) is fixedly installed on the mounting bracket (302), the first rotating shaft (3033) of the first reducer assembly (303) is fixedly connected to the first rectangular frame (301), the first rotating fixed sleeve (3035) of the second reducer assembly (305) is fixedly installed on the first rectangular frame (301), and the first rotating shaft (3033) of the second reducer assembly (305) is fixedly connected to the second rectangular frame (501).

10. The testing equipment for vehicle body strength according to claim 9, characterized in that, The first locking seat assembly (304) and the second locking seat assembly (306) have the same structure. Both the first locking seat assembly (304) and the second locking seat assembly (306) include a second rotating shaft (3061). The outer surface of the second rotating shaft (3061) is fixedly connected to the inner ring of the second bearing (3062). The outer surface of the second bearing (3062) is fixedly connected to a second rotating fixing sleeve (3063). A second hydraulic expansion sleeve (3064) is installed between the second rotating fixing sleeve (3063) and the second rotating shaft (3061). A second fixing bracket (3065) is provided on the outside of the second hydraulic expansion sleeve (3064). One end of the second fixing bracket (3065) is fixedly installed on the second rotating fixing sleeve (3063), and the other end of the second fixing bracket (3065) is fixedly connected to a locking seat (3066). The second rotating fixing sleeve (3063) of the first locking seat assembly (304) is fixedly installed on the mounting bracket (302), the second rotating shaft (3061) of the first locking seat assembly (304) is fixedly connected to the first rectangular frame (301), the second rotating fixing sleeve (3063) of the second locking seat assembly (306) is fixedly installed on the first rectangular frame (301), and the second rotating shaft (3061) of the second locking seat assembly (306) is fixedly connected to the second rectangular frame (501).

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