Vehicle brake pipeline pressure resistance test equipment and test method thereof

Abstract

The invention discloses vehicle brake pipeline pressure resistance testing equipment and a testing method thereof. The vehicle brake pipeline pressure resistance testing equipment comprises a rack, a pressure applying mechanism is arranged above the inner side of the rack, a bearing assembly is arranged below the pressure applying mechanism, a clamping mechanism is arranged on the surface of the bearing assembly, and a vehicle brake pipeline body is clamped on the inner side of the clamping mechanism; the clamping mechanism comprises limiting frames, and the limiting frames are symmetrically clamped to the inner side of the bearing assembly. According to the vehicle brake pipeline pressure resistance test equipment, the motor effectively drives the positive and negative screw rod to rotate positively and negatively, so that the group of limiting frames sleeving the surface of the positive and negative screw rod is driven to be far away from or close to each other, and the distance between the group of limiting frames is conveniently adjusted, so that vehicle brake pipeline bodies with different lengths are adaptively limited; and then the electric push rod effectively drives the limiting plate and the anti-skid rubber mat to approach the vehicle brake pipeline body, so that the front side and the rear side of the vehicle brake pipeline body are limited, and the limiting effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle brake pipeline pressure resistance testing, in particular to vehicle brake pipeline pressure resistance testing equipment and a testing method thereof. Background Art

[0002] The automotive brake line is an important component of the motor vehicle's braking system, used to transfer brake fluid from the master brake cylinder to the vehicle's brakes, such as brake drums or brake discs. It plays a key role in the entire braking system, ensuring that the braking force is transferred from the driver's brake pedal to the wheel brakes, thereby slowing down or stopping the vehicle. Brake lines include many types, such as hydraulic brake pipes, hydraulic brake hoses, pneumatic brake pipes, pneumatic brake hoses, vacuum pipes, etc. These different types of pipes together constitute the vehicle's braking system, ensuring that the vehicle can brake safely and effectively under different working conditions. At the end of the production and processing of automotive brake lines, the automotive brake lines need to be tested for compressive strength with the help of testing equipment to ensure the compressive strength of the automotive brake lines.

[0003] The existing pipeline pressure resistance test is often achieved through a press. However, since the outside of the pipeline is a curved surface, the clamping and fixing of the pipeline is relatively complicated. Long-term debugging and limiting of the pipeline can easily affect the test efficiency. For this reason, we propose a vehicle brake pipeline pressure resistance test equipment and a test method. Summary of the invention

[0004] The purpose of the present invention is to provide a vehicle brake pipeline pressure resistance test device and a test method thereof, so as to solve the problem that the existing pipeline pressure resistance test proposed in the above background technology is often achieved by a press, but since the outside of the pipeline is an arc-shaped surface, the clamping and fixing work of the pipeline is relatively complicated, and the long-term debugging and limiting of the pipeline is likely to affect the test efficiency.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a vehicle brake line pressure resistance test device and a test method thereof, comprising a frame, a pressure mechanism is provided on the upper inner side of the frame, a support assembly is provided below the pressure mechanism, a clamping mechanism is provided on the surface of the support assembly, and a vehicle brake line body is clamped inside the clamping mechanism;

[0006] The clamping mechanism includes a limit frame, a group of the limit frames are symmetrically engaged with the inner side of the supporting component, a group of electric push rods are symmetrically arranged inside the limit frame, the movable ends of the electric push rods are connected to the limit plates, the side of the limit plate away from the electric push rods is bonded with an anti-slip rubber pad, a group of positive and negative screw rods are passed through the inner side of the bottom of the limit frame, one end of the positive and negative screw rods is connected to a motor, and a positioning frame is fixed to the outside of the motor.

[0007] Preferably, the limit plate and the limit frame form a telescopic structure through an electric push rod, and the anti-slip rubber pad is matched and fitted on one side of the limit plate.

[0008] Preferably, the limit frame and the forward and reverse screw rods are threadedly connected, and the forward and reverse screw rods form a threaded transmission structure with the limit frame through the motor.

[0009] Preferably, the pressure-applying mechanism includes a hydraulic cylinder, a display assembly is provided above the hydraulic cylinder, a bracket is connected to the movable end of the hydraulic cylinder, a guide plate is fixedly connected to the lower end of the bracket, a pressure sensor body is provided between the bracket and the guide plate, a pressure plate is provided at the middle end of the bottom of the guide plate, and a group of guide groove frames are symmetrically provided on the outer sides of both ends of the guide plate.

[0010] Preferably, two ends of the guide plate are matched and engaged in the guide slot frame, and the guide slot frame and the frame are fixedly connected.

[0011] Preferably, the supporting assembly includes a supporting frame, a group of slots are symmetrically opened on both sides of the supporting frame, a number of bolts are symmetrically passed through the front and rear surfaces of the supporting frame, a group of slide grooves are symmetrically opened on the upper surface of the supporting frame, and a group of support plates are symmetrically fixed to the middle end of the bottom of the supporting frame.

[0012] Preferably, the support bracket is connected to the frame via bolts to form a detachable structure, and the support bracket and the slide groove are integrally formed.

[0013] Preferably, the forward and reverse screw rods are mounted inside a group of support plates, and the positioning frame is fixedly connected to the right support plate.

[0014] Preferably, the

[0015] S1. The motor drives the positive and negative screws to rotate clockwise, thereby driving a group of limit frames mounted on the surfaces of the positive and negative screws to move away from each other, providing a placement space for the vehicle brake pipe body to be tested. Then, the vehicle brake pipe body to be tested is placed between the group of limit frames, and the motor drives the positive and negative screws to rotate counterclockwise, thereby driving a group of limit frames mounted on the surfaces of the positive and negative screws to move closer to each other, so that both ends of the vehicle brake pipe body are in contact with the inner wall of the group of limit frames;

[0016] S2, then the electric push rod drives the limit plate and the anti-skid rubber pad to approach the vehicle brake pipe body, thereby limiting the front and rear sides of the vehicle brake pipe body to improve the limiting effect;

[0017] S3, then start the hydraulic cylinder to drive the bracket, the guide plate, the pressure sensor body and the pressure plate to move downward, so that the pressure plate contacts the vehicle brake pipe body and pressurizes the vehicle brake pipe body until the pressure data on the display component reaches the set value, thereby completing the pressure resistance test;

[0018] S4, then the hydraulic cylinder drives the lower part to move upward, and at the same time the electric push rod drives the limit plate and the anti-skid rubber pad away from the vehicle brake pipe body, and the motor drives the positive and negative screws to rotate clockwise, thereby driving a group of limit frames set on the surface of the positive and negative screws to move away from each other, and the vehicle brake pipe body that has been tested can be removed;

[0019] S5. Observe the surface of the vehicle brake pipe body. If deformation occurs, the vehicle brake pipe body is unqualified. If no deformation occurs, the vehicle brake pipe body is qualified.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention effectively drives the forward and reverse screws to rotate forward and reverse through the motor, thereby driving a group of limit frames sleeved on the surfaces of the forward and reverse screws to move away from or closer to each other, making it easy to adjust the spacing between a group of limit frames, thereby adapting to limit vehicle brake pipe bodies of different lengths, and then effectively driving the limit plate and the anti-skid rubber pad to approach the vehicle brake pipe body through the electric push rod, thereby limiting the front and rear sides of the vehicle brake pipe body and improving the limiting effect.

[0022] 2. The present invention uses a hydraulic cylinder to effectively drive the bracket, guide plate, pressure sensor body and pressure plate to move downward, so that the pressure plate contacts the vehicle brake pipeline body and pressurizes the vehicle brake pipeline body until the pressure data on the display component reaches the set value, thereby completing the pressure test. The cooperation between the guide plate and the guide groove frame can improve the vertical movement stability of the pressure plate.

[0023] 3. The present invention can separate the support frame from the frame by removing the bolts, and then the support frame can be moved upward along the outside of the guide groove frame through the card slot, so that the support frame and the clamping mechanism can be moved out of the frame, which is convenient for maintenance of the clamping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0026] Figure 3 For the present invention Figure 2 Schematic diagram of the structure of the CRRC brake pipe body removed;

[0027] Figure 4 It is a schematic diagram of a partial cross-sectional structure of a supporting assembly of the present invention;

[0028] Figure 5 It is a schematic diagram of the partial disassembled structure of the present invention;

[0029] In the figure: 1, frame; 2, pressure mechanism; 3, supporting assembly; 4, clamping mechanism; 5, vehicle brake pipe body;

[0030] 201, hydraulic cylinder; 202, display assembly; 203, bracket; 204, guide plate; 205, pressure sensor body; 206, pressure plate; 207, guide slot frame;

[0031] 301, support frame; 302, slot; 303, bolt; 304, slide slot; 305, support plate;

[0032] 401, limit frame; 402, electric push rod; 403, limit plate; 404, anti-skid rubber pad; 405, positive and negative screw rods; 406, motor; 407, positioning frame. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-5 The present invention provides a technical solution: a vehicle brake pipe pressure resistance test device and a test method thereof, comprising a frame 1, a pressure mechanism 2 is provided on the upper inner side of the frame 1, a support assembly 3 is provided below the pressure mechanism 2, a clamping mechanism 4 is provided on the surface of the support assembly 3, and a vehicle brake pipe body 5 is clamped inside the clamping mechanism 4;

[0035] The clamping mechanism 4 includes a limit frame 401, a group of limit frames 401 are symmetrically engaged with the inner side of the supporting component 3, a group of electric push rods 402 are symmetrically arranged inside the limit frame 401, the movable end of the electric push rod 402 is connected to the limit plate 403, and the side of the limit plate 403 away from the electric push rod 402 is bonded with an anti-skid rubber pad 404, wherein the limit plate 403 forms a telescopic structure with the limit frame 401 through the electric push rod 402, and the anti-skid rubber pad 404 matches and fits one side of the limit plate 403, a group of limit frames 401 bottom inner side is penetrated by positive and negative screw rods 405, one end of the positive and negative screw rods 405 is connected to a motor 406, further, the limit frame 401 and the positive and negative screw rods 405 are threadedly connected, the positive and negative screw rods 405 and the limit frame 401 form a threaded transmission structure through the motor 406, and a positioning frame 407 is fixed to the outside of the motor 406. The present invention effectively drives the forward and reverse screw rods 405 to rotate forward and reverse through the motor 406, thereby driving a group of limit frames 401 mounted on the surfaces of the forward and reverse screw rods 405 to move away from or closer to each other, making it easy to adjust the spacing between a group of limit frames 401, thereby adapting to limit vehicle brake pipe bodies 5 of different lengths, and then effectively driving the limit plate 403 and the anti-slip rubber pad 404 to approach the vehicle brake pipe body 5 through the electric push rod 402, thereby limiting the front and rear sides of the vehicle brake pipe body 5 and improving the limiting effect.

[0036] The pressure mechanism 2 includes a hydraulic cylinder 201, a display assembly 202 is provided above the hydraulic cylinder 201, a bracket 203 is connected to the movable end of the hydraulic cylinder 201, a guide plate 204 is fixedly connected to the lower end of the bracket 203, a pressure sensor body 205 is provided between the bracket 203 and the guide plate 204, a pressure plate 206 is provided at the middle end of the bottom of the guide plate 204, and a group of guide groove frames 207 are symmetrically provided on the outer sides of both ends of the guide plate 204, wherein the two ends of the guide plate 204 are matched and engaged in the inside of the guide groove frame 207, and the guide groove frame 207 and the frame 1 are fixedly connected. The present invention uses the hydraulic cylinder 201 to effectively drive the bracket 203, the guide plate 204, the pressure sensor body 205 and the pressure plate 206 to move downward, so that the pressure plate 206 contacts the vehicle brake pipeline body 5 and pressurizes the vehicle brake pipeline body 5 until the pressure data on the display component 202 reaches the set value, thereby completing the pressure resistance test. The cooperation between the guide plate 204 and the guide groove frame 207 can improve the vertical movement stability of the pressure plate 206.

[0037] The support assembly 3 includes a support frame 301, a group of slots 302 are symmetrically opened on both sides of the support frame 301, a number of bolts 303 are symmetrically passed through the front and rear surfaces of the support frame 301, and a group of slide slots 304 are symmetrically opened on the upper surface of the support frame 301, wherein the support frame 301 forms a detachable structure with the frame 1 through the bolts 303, the support frame 301 and the slide slots 304 are integrally formed, a group of support plates 305 are symmetrically fixed to the middle end of the bottom of the support frame 301, further, the positive and negative screw rods 405 are set inside the group of support plates 305, and the positioning frame 407 is fixedly connected to the right support plate 305. The present invention can separate the support frame 301 from the frame 1 by removing the bolts 303, and then the support frame 301 moves up along the outside of the guide slot frame 207 through the slots 302, so that the support frame 301 and the clamping mechanism 4 can be moved out of the frame 1, which is convenient for the maintenance of the clamping mechanism 4.

[0038] Working principle: For this type of vehicle brake line pressure resistance test equipment and its test method are as follows:

[0039] S1. The motor 406 drives the forward and reverse screw rods 405 to rotate clockwise, thereby driving a group of limit frames 401 sleeved on the surfaces of the forward and reverse screw rods 405 to move away from each other, providing a placement space for the vehicle brake pipe body 5 to be tested, and then the vehicle brake pipe body 5 to be tested is placed between the group of limit frames 401, and the motor 406 drives the forward and reverse screw rods 405 to rotate counterclockwise, thereby driving a group of limit frames 401 sleeved on the surfaces of the forward and reverse screw rods 405 to move closer to each other, so that the two ends of the vehicle brake pipe body 5 are in contact with the inner wall of the group of limit frames 401;

[0040] S2, the electric push rod 402 then drives the limit plate 403 and the anti-skid rubber pad 404 to approach the vehicle brake pipe body 5, thereby limiting the front and rear sides of the vehicle brake pipe body 5 to improve the limiting effect;

[0041] S3, then start the hydraulic cylinder 201 to drive the bracket 203, the guide plate 204, the pressure sensor body 205 and the pressure plate 206 to move downward, so that the pressure plate 206 contacts the vehicle brake pipe body 5 and pressurizes the vehicle brake pipe body 5 until the pressure data on the display component 202 reaches the set value, thereby completing the pressure resistance test;

[0042] S4, the hydraulic cylinder 201 then drives the components below it to move upward, and at the same time the electric push rod 402 drives the limit plate 403 and the anti-skid rubber pad 404 away from the vehicle brake pipe body 5, and the motor 406 drives the positive and negative screw rods 405 to rotate clockwise, thereby driving a group of limit frames 401 sleeved on the surface of the positive and negative screw rods 405 to move away from each other, and the vehicle brake pipe body 5 that has been tested can be removed;

[0043] S5. Observe the surface of the vehicle brake pipe body 5. If deformation occurs, the vehicle brake pipe body 5 is unqualified. If no deformation occurs, the vehicle brake pipe body 5 is qualified.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle brake line pressure resistance testing device, comprising a frame (1), characterized in that: A pressure mechanism (2) is provided on the upper inner side of the frame (1), a support assembly (3) is provided below the pressure mechanism (2), a clamping mechanism (4) is provided on the surface of the support assembly (3), and a vehicle brake pipeline body (5) is clamped on the inner side of the clamping mechanism (4); The clamping mechanism (4) comprises a limit frame (401), a group of the limit frames (401) are symmetrically engaged with the inner side of the supporting assembly (3), a group of electric push rods (402) are symmetrically arranged inside the limit frame (401), the movable ends of the electric push rods (402) are connected to the limit plates (403), a side of the limit plate (403) away from the electric push rods (402) is bonded with an anti-slip rubber pad (404), a positive and negative screw rods (405) are passed through the inner side of the bottom of the group of the limit frames (401), one end of the positive and negative screw rods (405) is connected to a motor (406), and a positioning frame (407) is fixedly arranged outside the motor (406).

2. The vehicle brake line pressure resistance testing equipment according to claim 1 is characterized in that: The limiting plate (403) forms a telescopic structure with the limiting frame (401) through the electric push rod (402), and the anti-slip rubber pad (404) is matched and attached to one side of the limiting plate (403).

3. The vehicle brake line pressure resistance testing equipment according to claim 1 is characterized in that: The limiting frame (401) and the forward and reverse screw rods (405) are threadedly connected, and the forward and reverse screw rods (405) form a threaded transmission structure with the limiting frame (401) through the motor (406).

4. The vehicle brake line pressure resistance testing equipment according to claim 1, characterized in that: The pressure mechanism (2) comprises a hydraulic cylinder (201), a display assembly (202) is provided above the hydraulic cylinder (201), a bracket (203) is connected to the movable end of the hydraulic cylinder (201), a guide plate (204) is fixedly connected to the lower end of the bracket (203), a pressure sensor body (205) is provided between the bracket (203) and the guide plate (204), a pressure plate (206) is provided at the middle end of the bottom of the guide plate (204), and a group of guide groove frames (207) are symmetrically provided on the outer sides of both ends of the guide plate (204).

5. The vehicle brake line pressure resistance testing equipment according to claim 4 is characterized in that: The two ends of the guide plate (204) are matched and snap-fitted into the interior of the guide slot frame (207), and the guide slot frame (207) and the frame (1) are fixedly connected.

6. The vehicle brake line pressure resistance testing equipment according to claim 1, characterized in that: The support assembly (3) comprises a support frame (301), a group of slots (302) are symmetrically provided on both sides of the support frame (301), a plurality of bolts (303) are symmetrically passed through the front and rear surfaces of the support frame (301), a group of slide grooves (304) are symmetrically provided on the upper surface of the support frame (301), and a group of support plates (305) are symmetrically fixed to the middle end of the bottom of the support frame (301).

7. The vehicle brake line pressure resistance testing equipment according to claim 6, characterized in that: The support frame (301) and the frame (1) form a detachable structure through bolts (303), and the support frame (301) and the slide groove (304) are integrally formed.

8. The vehicle brake line pressure resistance testing equipment according to claim 6, characterized in that: The forward and reverse screw rods (405) are mounted inside a group of support plates (305), and the positioning frame (407) is fixedly connected to the right support plate (305).

9. The vehicle brake line pressure resistance testing device and the testing method thereof according to claims 1-8, characterized in that: S1, the motor (406) drives the positive and negative screw rods (405) to rotate clockwise, thereby driving a group of limit frames (401) sleeved on the surfaces of the positive and negative screw rods (405) to move away from each other, providing a placement space for the vehicle brake pipe body (5) to be tested, and then the vehicle brake pipe body (5) to be tested is placed between the group of limit frames (401), and the motor (406) drives the positive and negative screw rods (405) to rotate counterclockwise, thereby driving a group of limit frames (401) sleeved on the surfaces of the positive and negative screw rods (405) to move closer to each other, so that the two ends of the vehicle brake pipe body (5) are in contact with the inner wall of the group of limit frames (401); S2, the electric push rod (402) then drives the limit plate (403) and the anti-skid rubber pad (404) to approach the vehicle brake pipe body (5), thereby limiting the front and rear sides of the vehicle brake pipe body (5) and improving the limiting effect; S3, then starting the hydraulic cylinder (201) to drive the bracket (203), the guide plate (204), the pressure sensor body (205) and the pressure plate (206) to move downward, so that the pressure plate (206) contacts the vehicle brake pipeline body (5) and pressurizes the vehicle brake pipeline body (5) until the pressure data on the display component (202) reaches the set value, thereby completing the pressure resistance test; S4, the hydraulic cylinder (201) then drives the components below it to move upward, and at the same time the electric push rod (402) drives the limit plate (403) and the anti-skid rubber pad (404) away from the vehicle brake pipe body (5), and the motor (406) drives the positive and negative screw rods (405) to rotate clockwise, thereby driving a group of limit frames (401) sleeved on the surfaces of the positive and negative screw rods (405) to move away from each other, and at this time the vehicle brake pipe body (5) that has been tested can be removed; S5. Observe the surface of the vehicle brake pipe body (5). If deformation occurs, the vehicle brake pipe body (5) is unqualified. If no deformation occurs, the vehicle brake pipe body (5) is qualified.

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