A vehicle body strength tester

Abstract

The utility model relates to the technical field of automobile hardness detection, and discloses a vehicle body strength tester, which includes a test block, on which a pressure measuring mechanism is arranged, and the pressure measuring mechanism includes a fixed disc, a fixed disc is fixedly installed on the outer side of the test block, a disc gear is fixedly installed inside the fixed disc, a rotating motor is fixedly installed on the outer side of the test block, a driving gear is fixedly installed on the output end of the rotating motor, a three-head round rod is fixedly installed on the outer side of the driving gear, and a passive gear is rotatably installed inside the three-head round rod. In order to obtain more accurate test data, the vehicle body strength tester is provided with a pressure measuring mechanism, and then cooperates with a fixed disc, a disc gear, a rotating motor, a driving gear, a three-head round rod, a passive gear, a booster hydraulic cylinder and a test machine, so that vehicle bodies with different curvatures can be fitted and squeezed, and then more accurate test data can be obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile hardness detection, in particular to a vehicle body strength tester. Background Art

[0002] The body strength test is one of the key tests to evaluate the ability of the car body to resist deformation and damage under the action of external forces. This test is to ensure that the car body can maintain structural integrity and relative stability of the passenger compartment in an accident, so as to minimize the impact of the accident on the passengers. The purpose of the body strength and stiffness test is to understand and verify whether the car body has the strength, durability and stiffness to fully exert its required performance under various usage conditions and environmental conditions. It is a very important part of the automobile design and manufacturing process.

[0003] In the prior art, when performing an extrusion test on a car body, due to the inconsistent curvature of the car body, the single direction and insufficiently fitted extrusion tester cannot obtain more accurate test data, and the position of the car body is easily moved due to pressure, resulting in errors in the strength test results, and there are certain safety hazards.

[0004] In view of this, we launched a car body strength tester. Utility Model Content

[0005] The purpose of the utility model is to provide a vehicle body strength tester to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a vehicle body strength tester, comprising a test block, on which a pressure measuring mechanism is provided, and the pressure measuring mechanism comprises:

[0007] A fixed disc, a fixed disc is fixedly mounted on the outside of the test block, a disc gear is fixedly mounted inside the fixed disc, a rotating motor is fixedly mounted on the outside of the test block, and a driving gear is fixedly mounted on the output end of the rotating motor;

[0008] A three-head round rod, the three-head round rod is fixedly installed on the outside of the driving gear, a passive gear is rotatably installed inside the three-head round rod, the passive gear is meshed with the driving gear, and one end of the passive gear away from the driving gear is meshed with the disc gear;

[0009] A booster hydraulic cylinder is fixedly installed on the outer side of the passive gear, and a testing machine is fixedly installed on the outer side of the booster hydraulic cylinder.

[0010] Preferably, the centers of the circular cross-sections of the fixed disc, disc gear, rotating motor and driving gear are coaxial.

[0011] Preferably, the passive gear, booster hydraulic cylinder and testing machine are provided in multiple groups, and the multiple groups of passive gears, booster hydraulic cylinders and testing machines are arranged in a circular array with equal spacing with the center of the circular cross-section of the fixed disc as the array center, so that vehicle bodies with different curvatures can be tested.

[0012] Preferably, a fixing mechanism is provided on the test block, a telescopic hydraulic cylinder is fixedly installed on the outer side of the test block, an upper sliding block is fixedly installed on the outer side of the test block, an upper sliding bar is slidably installed inside the upper sliding block, an arc groove slide plate is fixedly installed on the outer side of the upper sliding bar, a lower sliding bar is fixedly installed on the outer side of the test block, a lower sliding block is slidably installed on the outer side of the sliding bar, a clamping plate is fixedly installed on the outer side of the lower sliding block, a sliding column is fixedly installed on the outer side of the clamping plate, and the outer side of the sliding column is slidably installed inside the arc groove slide plate.

[0013] Preferably, the upper slider, upper slide bar, lower slide bar, lower slider, clamping plate and sliding column are provided in multiple groups, and the multiple groups of the upper slider, upper slide bar, lower slide bar, lower slider, clamping plate and sliding column use the vertical center line of the left and right directions of the test block as the mirror axis, and are mirrored at the left and right ends of the test block, so that the tested vehicle body will not shift, preventing data errors.

[0014] Preferably, the motion trajectories of the booster hydraulic cylinder, the testing machine and the arc slot slide do not intersect, so that the two cooperate with each other to make the test result more complete.

[0015] Compared with the prior art, the utility model provides a vehicle body strength tester, which has the following beneficial effects:

[0016] 1. In order to obtain more accurate test data, the vehicle body strength tester is equipped with a pressure measuring mechanism, which is combined with a fixed disc, a disc gear, a rotating motor, a driving gear, a three-head round rod, a passive gear, a booster hydraulic cylinder and a testing machine, so that vehicles with different curvatures can be fitted and squeezed, thereby obtaining more accurate test data.

[0017] 2. In order to prevent data errors caused by vehicle displacement and reduce safety hazards, the vehicle body strength tester is equipped with a fixing mechanism, which is combined with a telescopic hydraulic cylinder, an upper slider, an upper slide bar, an arc groove slide bar, a lower slide bar, a lower slider, a clamping plate and a slide column, so that the vehicle body can be better fixed when viewed from the side to prevent displacement, thereby making the data more accurate and safer during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic top view of the overall structure of the utility model;

[0019] Figure 2 It is a partial structure explosion diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of an exploded top view of the structure of the utility model;

[0021] Figure 4 It is a schematic cross-sectional view of the structure of the utility model;

[0022] Figure 5 It is a bottom view schematic diagram of the overall structure of the utility model.

[0023] In the figure: 1. test block; 2. pressure measuring mechanism; 21. fixed disc; 22. disc gear; 23. rotating motor; 24. driving gear; 25. three-head round rod; 26. driven gear; 27. booster hydraulic cylinder; 28. testing machine; 3. fixing mechanism; 31. telescopic hydraulic cylinder; 32. upper slider; 33. upper slide bar; 34. arc groove slider; 35. lower slide bar; 36. lower slider; 37. clamping plate; 38. slide column. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides a technical solution: a vehicle body strength tester, comprising a test block 1, on which a pressure measuring mechanism 2 is arranged.

[0026] In one embodiment of the utility model, the pressure measuring mechanism 2 includes a fixed disc 21, a fixed disc 21 is fixedly installed on the outside of the test block 1, a disc gear 22 is fixedly installed inside the fixed disc 21, a rotating motor 23 is fixedly installed on the outside of the test block 1, a driving gear 24 is fixedly installed on the output end of the rotating motor 23, a three-head round rod 25 is fixedly installed on the outside of the driving gear 24, a passive gear 26 is rotatably installed inside the three-head round rod 25, the passive gear 26 is meshed with the driving gear 24, and one end of the passive gear 26 away from the driving gear 24 is meshed with the disc gear 22, a booster hydraulic cylinder 27 is fixedly installed on the outside of the passive gear 26, after the rotating motor 23 is turned on, the driving gear 24 drives the three-head round rod 25 to rotate, so that the passive gear 26 rotates while revolving, and a testing machine 28 is fixedly installed on the outside of the booster hydraulic cylinder 27. The center of the circular cross section of the fixed disc 21, the disc gear 22, the rotating motor 23 and the driving gear 24 is coaxial. There are multiple sets of passive gears 26, booster hydraulic cylinders 27 and test machines 28, and the multiple sets of passive gears 26, booster hydraulic cylinders 27 and test machines 28 are arranged in a circular array with equal spacing around the center of the circular cross section of the fixed disk 21 as the center of the array, so that the booster hydraulic cylinder 27 places the test machine 28 downward and adjusts it to fit the different curvatures of the vehicle body, thereby obtaining more accurate test data.

[0027] In one embodiment of the utility model, a fixing mechanism 3 is provided on the test block 1, a telescopic hydraulic cylinder 31 is fixedly installed on the outer side of the test block 1, an upper slider 32 is fixedly installed on the outer side of the test block 1, an upper slider 33 is slidably installed inside the upper slider 32, an arc groove slide plate 34 is fixedly installed on the outer side of the upper slider 33, when the vehicle body needs to be strength tested, the telescopic hydraulic cylinder 31 is retracted, so that the upper slider 32 drives the arc groove slide plate 34 to retract, a lower slide bar 35 is fixedly installed on the outer side of the test block 1, a lower slider 36 is slidably installed on the outer side of the lower slider 35, a clamping plate 37 is fixedly installed on the outer side of the lower slider 36, a sliding column 38 is fixedly installed on the outer side of the clamping plate 37, and the outer side of the sliding column 38 is slidably installed inside the arc groove slide plate 34. There are multiple sets of upper sliders 32, upper sliders 33, lower sliders 35, lower sliders 36, clamping plates 37 and slide posts 38, and the multiple sets of upper sliders 32, upper sliders 33, lower sliders 35, lower sliders 36, clamping plates 37 and slide posts 38 are mirrored with the vertical center line of the left and right directions of the test block 1 as the mirror axis, and the mirror images are set at the left and right ends of the test block 1. The motion trajectories of the booster hydraulic cylinder 27, the test machine 28 and the arc slot slide 34 do not intersect, so that the slide post 38 drives the clamping plate 37 to move, and then the clamping plate 37 drives the lower slider 36 to move inward, so that the vehicle body is firmly stuck to prevent displacement, and then the data is more accurate and safer during operation.

[0028] Working principle: When the vehicle body needs to be tested for strength, the telescopic hydraulic cylinder 31 is retracted, so that the upper slider 32 drives the arc slot slider 34 to retract, so that the slide column 38 drives the clamping plate 37 to move, and then the clamping plate 37 drives the lower slider 36 to move inward, so that the vehicle body is firmly stuck to prevent displacement, and then the data is more accurate and safer during operation. After turning on the rotating motor 23, the active gear 24 drives the three-head round rod 25 to rotate, so that the passive gear 26 rotates while revolving, so that the booster hydraulic cylinder 27 places the test machine 28 downward, and adjusts it to fit the different curvatures of the vehicle body, so as to obtain more accurate test data.

[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A vehicle body strength tester, comprising a test block (1), characterized in that: The test block (1) is provided with a pressure measuring mechanism (2), and the pressure measuring mechanism (2) comprises: A fixed disc (21), the test block (1) is fixedly mounted with the fixed disc (21), the fixed disc (21) is fixedly mounted with a disc gear (22) inside, the test block (1) is fixedly mounted with a rotating motor (23) outside, and the output end of the rotating motor (23) is fixedly mounted with a driving gear (24); A three-head round rod (25), the three-head round rod (25) is fixedly mounted on the outside of the driving gear (24), a passive gear (26) is rotatably mounted inside the three-head round rod (25), the passive gear (26) is meshed with the driving gear (24), and one end of the passive gear (26) away from the driving gear (24) is meshed with the disc gear (22); A booster hydraulic cylinder (27), the booster hydraulic cylinder (27) is fixedly mounted on the outside of the passive gear (26), and a testing machine (28) is fixedly mounted on the outside of the booster hydraulic cylinder (27).

2. A vehicle body strength tester according to claim 1, characterized in that: The centers of the circular cross-sections of the fixed disc (21), the disc gear (22), the rotating motor (23) and the driving gear (24) are coaxial.

3. A vehicle body strength tester according to claim 1, characterized in that: The passive gear (26), the booster hydraulic cylinder (27) and the testing machine (28) are provided in multiple groups.

4. A vehicle body strength tester according to claim 1, characterized in that: The test block (1) is provided with a fixing mechanism (3), a telescopic hydraulic cylinder (31) is fixedly mounted on the outer side of the test block (1), an upper slider (32) is fixedly mounted on the outer side of the test block (1), an upper slider (33) is slidably mounted inside the upper slider (32), an arc groove slide plate (34) is fixedly mounted on the outer side of the upper slider (33), a lower slider (35) is fixedly mounted on the outer side of the test block (1), a lower slider (36) is slidably mounted on the outer side of the lower slider (35), a clamping plate (37) is fixedly mounted on the outer side of the lower slider (36), a sliding column (38) is fixedly mounted on the outer side of the clamping plate (37), and the outer side of the sliding column (38) is slidably mounted inside the arc groove slide plate (34).

5. A vehicle body strength tester according to claim 4, characterized in that: The upper slider (32), the upper slide bar (33), the lower slide bar (35), the lower slider (36), the clamping plate (37) and the slide column (38) are arranged in multiple groups.

6. A vehicle body strength tester according to claim 5, characterized in that: The motion tracks of the booster hydraulic cylinder (27), the testing machine (28) and the arc slot slide plate (34) do not intersect.

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