Elastic detection device for leaf spring

Abstract

The utility model relates to the technical field of leaf spring detection, in particular to an elasticity detection device for a leaf spring, which comprises a bottom plate and a testing device, the upper surface of the bottom plate is fixedly connected with a support, the inner wall of the bottom plate is provided with two pulleys, the inner wall of each pulley is provided with a rod body, and the testing device is arranged on the surface of the support. The testing device comprises two supporting seats fixedly connected with the upper surface of the support, the inner wall of each supporting seat is rotatably connected with a main shaft, and the inner wall of each main shaft is slidably connected with a sliding sleeve. Then, the main motor is matched with the main shaft and the cams to rotate and is matched with the pushing piece, pushing detection can be carried out with various forces according to requirements, when each cam is matched with the pushing piece, very accurate force can be provided for the pushing piece, the consistency of each detection condition is ensured, and the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of leaf spring detection, in particular to an elasticity detection device for a leaf spring. Background Art

[0002] Leaf spring, also known as steel plate spring, is a common elastic element of automobile suspension. Leaf spring is mainly composed of multiple return spring steel sheets of different lengths and the same width. The lengths of these steel sheets are arranged in sequence from short to long to form a trapezoidal structure. Bolts are used to fix the return spring sheets together so that they can work together to bear force during operation.

[0003] The prior art, such as the utility model with publication number CN217059240U, relates to the field of leaf spring processing technology and discloses a steel plate elasticity detection device for a leaf spring, comprising a body, two sets of slide grooves provided on the front and rear sides of the body, and a clamping plate slidably connected to the slide groove, two sets of mounting plates being fastened to the rear sides of the clamping plate, a central shaft being fastened between the two sets of mounting plates, a movable groove being provided inside the body, and a hydraulic cylinder being provided on the inner wall of the movable groove. The steel plate elasticity detection device for a leaf spring, through the cooperation between the connecting plate and the fixed shaft, when the hydraulic cylinder is turned on to move the movable plate to the left, the fixed shaft will pull the clamping plate by pulling the connecting plate, thereby causing the two sets of clamping plates to move relative to each other, and stopping the movable plate to fix the clamping plate in the current position, so that the clamping plate can fix and clamp materials of different sizes at different positions, preventing the materials from unbalancing and shaking during the detection process, and solving the problem that the existing equipment has a relatively single function and is inconvenient to fix materials of different sizes, thereby making it inconvenient to detect materials of different sizes.

[0004] In daily work, it is found that when the existing elasticity detection device for leaf springs is used, the leaf spring is mainly pushed by the cylinder to realize the elasticity test of the leaf spring. However, in most of the test processes, the cylinder can only perform a single push and reset operation. Due to factors such as gas pressure fluctuations, the downward pressure of the cylinder may cause slight changes in force during multiple presses, resulting in unstable force for each test, and a single push and reset operation cannot accurately reflect the true elastic performance of the leaf spring, resulting in a certain impact on the accuracy and reliability of the test results, making it difficult to comprehensively examine the performance of the leaf spring under various working conditions. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcoming of the prior art that it is difficult to detect with multiple forces, and to propose an elasticity detection device for a leaf spring.

[0006] To achieve the above-mentioned object, the present invention adopts the following technical solution: A leaf spring elasticity testing device comprises a base plate and a testing device, wherein the upper surface of the base plate is fixedly connected to a bracket, the inner wall of the base plate is provided with two pulleys, the inner wall of the pulley is provided with a rod, the testing device is provided on the surface of the bracket, the testing device comprises two support seats fixedly connected to the upper surface of the bracket, the inner wall of the support seat is rotatably connected to the main shaft, the inner wall of the main shaft is slidably connected to the sliding sleeve, the surface of the sliding sleeve is fixedly connected to three groups of cams of different sizes, the surface of the support seat is fixedly connected to the main motor, the output end of the main motor is fixedly connected to one end of the main shaft, an adjustment assembly is provided between the main shaft and the sliding sleeve, and a pushing member is provided on the inner wall of the bracket. Through the above-mentioned components, when testing, the main shaft can be driven to rotate by the main motor, and the main shaft can cooperate with the cam to squeeze the pushing member, so that the pushing member pushes the leaf spring to test the elastic force, and the adjustment assembly can control the sliding sleeve to move, thereby adjusting the cams of different sizes to cooperate with the pushing member to achieve testing with various forces.

[0007] Preferably, the adjusting assembly includes a screw, which is rotatably connected to the inner wall of the main shaft, and the screw is threadedly connected to the inner wall of the sliding sleeve. One end of the main shaft is fixedly connected to an adjusting motor, and the output end of the adjusting motor is fixedly connected to one end of the screw. Through the above components, when making adjustments, the adjusting motor can be turned on, the adjusting motor can drive the screw to rotate, and the screw can control the sliding sleeve to move in the main shaft, and three groups of cams of different sizes are adjusted to cooperate with the pushing member.

[0008] Preferably, the pushing member includes a push rod, which is slidingly connected to the inner wall of the bracket, the upper end of the push rod is fixedly connected to a connecting head, the inner wall of the connecting head is rotatably connected to a roller, and the surface of the push rod is sleeved with a return spring, and the two ends of the return spring are respectively fixedly connected to the surface of the connecting head and the bracket. Through the above components, when the cam is squeezed with the pushing member, the cam will contact the roller in the connecting head, thereby reducing friction and pushing the push rod to move, and the return spring can control the push rod to reset.

[0009] Preferably, a push plate is fixedly connected to the lower end of the push rod. Through the above components, the push plate can increase the contact area between the push rod and the leaf spring, thereby ensuring the overall test effect.

[0010] Preferably, a protective device is provided on the surface of the base plate, and the protective device includes two cylinders fixedly connected to the surface of the base plate, the output end of the cylinder is fixedly connected to a cover body, and a through hole is opened on the surface of the cover body for the bracket to pass through. Through the above components, during the test process, the cylinder can drive the cover body to reset, and then the cover body blocks and protects the detection area, thereby improving overall safety.

[0011] Preferably, an observation window is provided on one side surface of the cover body, and the observation window facilitates the operator to observe the situation of the detection area from the outside through the above components.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] In the present invention, a test device is set up, and the sliding sleeve and three groups of cams of different sizes are driven by the adjustment component to adjust the position. Then the main motor cooperates with the main shaft and the cam to rotate, and cooperates with the pushing member to achieve a variety of forces for pushing detection according to needs. When each cam cooperates with the pushing member, it can provide a very precise force for the pushing member, ensuring the consistency of the detection conditions each time and improving the accuracy of the detection.

[0014] In the present invention, by setting up a protective device, shielding and protection can be provided during the leaf spring elastic force test, and at the same time it is convenient for observation, thereby reducing the phenomenon of some poor quality leaf springs breaking during the test process, thereby accidentally injuring operators, and improving overall safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a side structural diagram of the present utility model;

[0017] Figure 3 It is a partial structural diagram of the utility model;

[0018] Figure 4 This is a schematic diagram of a partial explosion structure of the test device of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the pusher in the testing device of the present utility model.

[0020] Legend:

[0021] 1. Base plate; 2. Pulley; 3. Rod; 4. Bracket; 5. Test device; 51. Support base;

[0022] 52. Spindle; 53. Sliding sleeve; 54. Cam; 55. Adjustment assembly; 551. Adjustment motor; 552. Screw; 56. Pusher; 561. Push rod; 562. Push plate; 563. Return spring; 564. Roller;

[0023] 565. Connector; 57. Main motor; 6. Protective device; 61. Cover; 62. Observation window; 63. Cylinder. DETAILED DESCRIPTION

[0024] See also Figure 1-Figure 5 The utility model provides a technical solution: an elasticity detection device for a leaf spring, comprising a base plate 1 and a testing device 5, a bracket 4 being fixedly connected to the upper surface of the base plate 1, two pulleys 2 being provided on the inner wall of the base plate 1, a rod 3 being provided on the inner wall of the pulley 2, and the testing device 5 being provided on the surface of the bracket 4.

[0025] Specifically, the testing device 5 includes two support seats 51 fixedly connected to the upper surface of the bracket 4, the inner wall of the support seat 51 is rotatably connected to the main shaft 52, the inner wall of the main shaft 52 is slidably connected to the sliding sleeve 53, and the surface of the sliding sleeve 53 is fixedly connected to three groups of cams 54 of different sizes, the surface of the support seat 51 is fixedly connected to the main motor 57, the output end of the main motor 57 is fixedly connected to one end of the main shaft 52, an adjustment component 55 is arranged between the main shaft 52 and the sliding sleeve 53, and a pushing member 56 is arranged on the inner wall of the bracket 4.

[0026] In this embodiment: when conducting a test, the main motor 57 can be used to drive the main shaft 52 to rotate, and the main shaft 52 can cooperate with the cam 54 to squeeze the pusher 56, so that the pusher 56 pushes the leaf spring to test the elastic force, and the adjustment component 55 can control the sliding sleeve 53 to move, thereby adjusting the cams 54 of different sizes to cooperate with the pusher 56 to achieve testing with multiple forces.

[0027] Specifically, the adjustment component 55 includes a screw 552, which is rotatably connected to the inner wall of the main shaft 52, and the screw 552 is threadedly connected to the inner wall of the sliding sleeve 53. One end of the main shaft 52 is fixedly connected to the adjustment motor 551, and the output end of the adjustment motor 551 is fixedly connected to one end of the screw 552.

[0028] In this embodiment: when making adjustments, the adjustment motor 551 can be turned on, the adjustment motor 551 can drive the screw 552 to rotate, the screw 552 can control the sliding sleeve 53 to move in the main shaft 52, and adjust the three groups of cams 54 of different sizes to cooperate with the pusher 56.

[0029] Specifically, the pushing member 56 includes a push rod 561, which is slidingly connected to the inner wall of the bracket 4. The upper end of the push rod 561 is fixedly connected to a connecting head 565, and the inner wall of the connecting head 565 is rotatably connected to a roller 564. The surface of the push rod 561 is provided with a reset spring 563, and the two ends of the reset spring 563 are respectively fixedly connected to the connecting head 565 and the surface of the bracket 4.

[0030] In this embodiment, when the cam 54 is pressed against the pusher 56, the cam 54 contacts the roller 564 in the connector 565, thereby reducing friction and pushing the push rod 561 to move. The reset spring 563 can control the push rod 561 to reset.

[0031] Specifically, the lower end of the push rod 561 is fixedly connected to a push plate 562 , and the push plate 562 can increase the contact area between the push rod 561 and the leaf spring, thereby ensuring the overall test effect.

[0032] Specifically, a protective device 6 is provided on the surface of the base plate 1. The protective device 6 includes two cylinders 63 fixedly connected to the surface of the base plate 1. The output end of the cylinder 63 is fixedly connected to a cover body 61. A through hole is opened on the surface of the cover body 61, and the through hole is for the bracket 4 to pass through.

[0033] In this embodiment, during the test, the cylinder 63 can drive the cover 61 to reset, and then the cover 61 shields and protects the detection area, thereby improving overall safety.

[0034] Specifically, an observation window 62 is provided on one side surface of the cover body 61 , and the observation window 62 facilitates an operator to observe the situation of the detection area from the outside.

[0035] Working principle: When conducting a test, first, the pulley 2 cooperates with the rod 3 to limit the two ends of the leaf spring, and the cylinder 63 can drive the cover 61 to reset, and then the cover 61 shields and protects the test area, and then the main motor 57 is turned on, and the main motor 57 can drive the main shaft 52 to rotate, and the main shaft 52 drives the sliding sleeve 53 and the cam 54 to rotate. When the cam 54 rotates, it can contact the roller 564 in the connector 565 on the pusher 56 to reduce friction, and then the cam 54 can squeeze the roller 564 and the connector 565, so that the push rod 561 and the push plate 562 are squeezed. The leaf spring and the return spring 563 are under force. After the cam 54 loses its squeezing on the pusher 56, the return spring 563 drives the pusher 56 to reset, thereby performing multiple operations continuously to realize the elastic force test. When different pressing forces are required, turn on the adjustment motor 551. The adjustment motor 551 can drive the sliding sleeve 53 and three groups of cams 54 of different sizes to move, and adjust the cam 54 of the required size to the top of the pusher 56, and then cooperate with the pusher 56 to squeeze, so that multi-force testing can be realized. During the detection process, the cover body 61 can provide protection and can be observed through the observation window 62.

Claims

1. An elasticity detection device for a leaf spring, comprising a base plate (1) and a testing device (5), characterized in that: The upper surface of the base plate (1) is fixedly connected to a bracket (4), the inner wall of the base plate (1) is provided with two pulleys (2), the inner wall of the pulley (2) is provided with a rod (3), the testing device (5) is provided on the surface of the bracket (4), the testing device (5) comprises two support seats (51) fixedly connected to the upper surface of the bracket (4), the inner wall of the support seat (51) is rotatably connected to a main shaft (52), the inner wall of the main shaft (52) is slidably connected to a sliding sleeve (53), the surface of the sliding sleeve (53) is fixedly connected to three groups of cams (54) of different sizes, the surface of the support seat (51) is fixedly connected to a main motor (57), the output end of the main motor (57) is fixedly connected to one end of the main shaft (52), an adjusting component (55) is provided between the main shaft (52) and the sliding sleeve (53), and a pushing member (56) is provided on the inner wall of the bracket (4).

2. The elasticity detection device for a leaf spring according to claim 1, characterized in that: The adjusting assembly (55) includes a screw (552), the screw (552) being rotatably connected to the inner wall of the main shaft (52), the screw (552) being threadedly connected to the inner wall of the sliding sleeve (53), one end of the main shaft (52) being fixedly connected to an adjusting motor (551), and the output end of the adjusting motor (551) being fixedly connected to one end of the screw (552).

3. The leaf spring elasticity detection device according to claim 1, characterized in that: The pushing member (56) includes a push rod (561), the push rod (561) is slidably connected to the inner wall of the bracket (4), the upper end of the push rod (561) is fixedly connected to a connector (565), the inner wall of the connector (565) is rotatably connected to a roller (564), and a return spring (563) is sleeved on the surface of the push rod (561), and the two ends of the return spring (563) are respectively fixedly connected to the surface of the connector (565) and the bracket (4).

4. The elasticity detection device for a leaf spring according to claim 3, characterized in that: The lower end of the push rod (561) is fixedly connected to a push plate (562).

5. The elasticity detection device for a leaf spring according to claim 1, characterized in that: A protective device (6) is provided on the surface of the base plate (1), and the protective device (6) comprises two cylinders (63) fixedly connected to the surface of the base plate (1), the output ends of the cylinders (63) are fixedly connected to a cover body (61), and a through hole is provided on the surface of the cover body (61), and the through hole is for the bracket (4) to pass through.

6. The leaf spring elasticity detection device according to claim 5, characterized in that: An observation window (62) is provided on one side surface of the cover body (61).

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