A component deformation testing device

Abstract

The present invention relates to the technical field of testing equipment, and specifically to a component deformation testing device, comprising a test bench and a support plate installed on the test bench, wherein the support plate is fixedly connected to a guide rod, and also comprises a bidirectional extrusion plate slidably arranged on the guide rod, and movable top plates are provided on both sides of the bidirectional extrusion plate. This device divides the test springs into equal parts and symmetrically places them on both sides of the bidirectional extrusion plate for testing, and a driving member drives the bidirectional extrusion plate to reciprocate. When moving to the left, the left spring is compressed to store energy, and the originally compressed spring on the right releases energy, generating a rightward thrust on the bidirectional extrusion plate; when moving to the right, the situation is reversed, the right spring is compressed to store energy, and the left spring releases energy to generate a leftward thrust; under this motion and energy conversion mechanism, the driving member does not need to continuously output large power to maintain the reciprocating motion of the bidirectional extrusion plate. With the help of the test spring energy storage and energy release, the device can complete partial power assistance, reduce the load on the driving member and related transmission components, and extend the service life of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of testing equipment, in particular to a component deformation testing device. Background Art

[0002] Universal parts refer to those parts and components that are widely used in various machines, equipment, and systems, have standardized and serialized characteristics, can be mass-produced and used interchangeably, such as springs. After the springs are produced, they must undergo strict quality inspections to ensure that their performance meets the design requirements. Fatigue testing is a crucial part of this process. Fatigue testing aims to simulate the stress conditions of the spring during actual working process and detect its performance changes and reliability after long-term repeated stress. Currently, one of the common methods for spring fatigue testing is to repeatedly squeeze the spring using a reciprocating pressure plate.

[0003] During the specific operation, the pressure plate is moved to the set position, and a certain pressure is applied to the spring to make it reach a predetermined compression degree. The pressure plate then moves back and forth, and the extrusion process is repeated continuously. In this way, the situation in which the spring is frequently subjected to loads in actual use is simulated, thereby evaluating the fatigue life and performance stability of the spring. However, in the spring testing equipment of the prior art, when multiple springs need to be tested simultaneously, there is a problem that needs to be solved urgently. These devices often need to press multiple springs at the same time, which puts extremely high load requirements on the driving components of the equipment. The driving components must not only overcome the elastic force of multiple springs, but also ensure the smoothness and accuracy of the movement of the pressure plate to ensure the accuracy of the test results. Long-term high-load operation will not only accelerate the wear of the driving components and reduce the service life of the equipment, but may also cause failures during the test, affecting the test efficiency and quality. For this reason, we propose a component deformation testing device. Summary of the Invention

[0004] To solve the above technical problems, an embodiment of the present application provides a component deformation testing device, including a test bench and a support plate installed on the test bench, the support plate is fixedly connected to a guide rod, and also includes a bidirectional extrusion plate slidably arranged on the guide rod, a movable top plate is provided on both sides of the bidirectional extrusion plate, and the movable top plate is slidably connected to the guide rod, and the gap between the movable top plate and the bidirectional extrusion plate is used to install a test spring, and the test bench is provided with a pushing member connected to the movable top plate, for driving the two movable top plates to move relative to the bidirectional extrusion plate to clamp the test spring and squeeze the test spring to half of its preset compression value, and the test bench is provided with a driving member connected to the bidirectional extrusion plate, for driving the bidirectional extrusion plate to reciprocate, and its moving stroke is the preset compression value of the spring, so as to alternately squeeze the test springs on both sides thereof, and at the same time alternately release the test springs on both sides thereof, so as to utilize the test springs alternately released on both sides of the bidirectional extrusion plate to directly assist in pushing the bidirectional extrusion plate to move.

[0005] In some embodiments, the pushing member includes a mounting frame arranged between two movable top plates, the mounting frame is connected to the support plate, and a dual-axis motor is fixedly connected to the mounting frame, and both output shafts of the dual-axis motor are fixedly connected to shaft one, and shaft one is fixedly connected to a screw threaded through the movable top plate.

[0006] In some embodiments, the movable top plate located on one side of the bidirectional extrusion plate adopts a split design, which includes a movable push plate, a groove is opened on one side of the movable push plate, a rectangular plate is slidably connected in the groove, and a pressure sensor electrically connected to the controller of the dual-axis motor is installed between the rectangular plate and the movable push plate, which is used to detect the compression amount of the test spring when the movable top plate presses the test spring.

[0007] In some embodiments, the driving member includes a second shaft fixedly connected to both sides of the bidirectional extrusion plate, a connecting rod is rotatably connected to the second shaft, a hollow shaft three is rotatably connected in the test bench, an L-shaped plate is provided at the end of the hollow shaft three, and one end of the L-shaped plate is fixedly connected to a fourth shaft rotatably connected to one end of the connecting rod;

[0008] A driving motor is fixedly connected in the test bench, a gear disc 1 is fixedly connected to the hollow shaft 3, a gear disc 2 engaged with the gear disc 1 is fixedly connected to the output shaft of the driving motor, and the driving motor is started to drive the bidirectional extrusion plate to move.

[0009] In some embodiments, the driving motor is a self-locking motor, and a stroke adjustment component is provided on the hollow shaft 3 for adjusting the test stroke of the bidirectional extrusion plate while the movable top plate compresses the test spring;

[0010] The mounting frame is slidably connected to the support plate. A locking piece is provided on the mounting frame for locking the mounting frame and the support plate, and releasing the locking of the mounting frame when the movable top plate compresses the test spring.

[0011] In some embodiments, the stroke adjustment assembly includes an injection barrel 1 conductively connected to the hollow shaft 3, and the injection barrel 1 is filled with hydraulic oil. A piston 1 is slidably connected to the injection barrel 1, and one end of the piston 1 is fixedly connected to a push rod 1 whose one end is fixed to the L-shaped plate. Hydraulic oil is filled into the injection barrel 1 to drive the shaft 4 away from the hollow shaft 3.

[0012] A hollow ring is rotatably connected to the hollow shaft three, and a plurality of through grooves connected to the hollow ring are evenly and equidistantly provided on the hollow shaft three. An injection barrel two is fixedly connected to the mounting frame, and the injection barrel two is also filled with hydraulic oil. A piston two is slidably connected to the injection barrel two, and one end of the piston two is fixedly connected to a push rod two fixed to a movable top plate at one end. A three-way pipe is conductively connected to one side of the injection barrel two, and an injection barrel three is conductively connected to one side of the three-way pipe. The injection barrel three is also filled with hydraulic oil, and the injection barrel three is slidably connected to the piston three, and the three-way pipe is conductively connected to the hollow ring through a conduit.

[0013] A valve component 1 is provided in the three-way pipe, which is used to connect the injection barrel 2 and the injection barrel 3 to transmit hydraulic oil and block the injection barrel 1 when the movable top plate moves to contact the test spring. Then, when the movable top plate continues to move to compress the test spring, the injection barrel 2 and the injection barrel 1 are connected to drive the movement of the shaft 4.

[0014] In some embodiments, the three-way pipe includes a hollow cylinder 1, and three branch pipes are conductively connected to the hollow cylinder 1, and the three branch pipes are conductively connected to the injection barrel 2, the injection barrel 1, and the injection barrel 3 respectively;

[0015] The valve member 1 includes a rotating column 1 rotatably connected to the hollow cylinder 1, a guide groove 1 is defined in the rotating column 1 for connecting the injection barrel 2 and the injection barrel 3, and a guide groove 2 is defined in the rotating column 1 that is perpendicular to and connected to the guide groove 1. The rotating column 1 is fixedly connected to a shaft 5 having one end passing through the hollow cylinder 1, and the shaft 5 is used to rotate the rotating column 1 to connect the injection barrel 2 and the injection barrel 1;

[0016] An electric push rod electrically connected to the pressure sensor is fixedly connected to the mounting frame, the extended end of the electric push rod is fixedly connected to a strip plate, and one end of the shaft five is fixedly connected to a deflection plate, one end of the strip plate is provided with a guide groove, and one end of the deflection plate is fixedly connected to a shaft six that slides through the guide groove, and starting the electric push rod drives the shaft five to rotate.

[0017] In some embodiments, a hollow push rod three is fixedly connected to the mounting frame, and both ends of the hollow push rod three are respectively provided with injection barrels four fixedly connected to the support plate, and the injection barrels four are filled with hydraulic oil. The ends of the hollow push rod three are located in the injection barrel four and are fixedly connected to a piston four, and the piston four is slidingly connected to the inner wall of the injection barrel four, and a valve component two is provided on the hollow push rod three, which is used to seal the hollow push rod three and conduct the hollow push rod three when the movable top plate compresses the test spring.

[0018] In some embodiments, the valve member 2 includes a hollow cylinder 2 conductively connected to the hollow push rod 3, a rotating column 2 is rotatably connected inside the hollow cylinder 2, the shaft 5 is fixedly connected to the rotating column 2, and a guide groove 3 is formed in the rotating column 2;

[0019] A support block is fixedly connected to the bidirectional extrusion plate, and one end of the shaft five is fixedly connected to a support rod. When the movable top plate compresses the spring, the shaft five drives the support rod to deflect and contact the support block.

[0020] In some embodiments, a plurality of positioning columns are evenly and equidistantly fixedly connected to one of the movable top plates, and a plurality of positioning columns are also evenly and equidistantly fixedly connected to the rectangular plate, and a plurality of positioning columns are also evenly and equidistantly fixedly connected to both sides of the bidirectional extrusion plate.

[0021] The present invention has at least the following beneficial effects:

[0022] 1. This device places the test springs equally and symmetrically on both sides of a bidirectional extrusion plate for testing. The driving component drives the bidirectional extrusion plate to reciprocate. When moving to the left, the left spring compresses to store energy, and the originally compressed spring on the right releases energy, generating a rightward thrust on the bidirectional extrusion plate. When moving to the right, the situation is reversed, the right spring compresses to store energy, and the left spring releases energy to generate a leftward thrust. Under this motion and energy conversion mechanism, the driving component does not need to continuously output high power to maintain the reciprocating motion of the bidirectional extrusion plate. With the help of the test spring energy storage and release, the device can complete partial power assistance, reduce the load on the driving component and related transmission components, and extend the life of the device.

[0023] 2. This device adapts to test springs with different compression amounts by cooperating with the pusher and the stroke adjustment assembly, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0025] Figure 2 For the present invention Figure 1 Another structural diagram;

[0026] Figure 3 For the present invention Figure 1 Schematic diagram of the local cross-section structure;

[0027] Figure 4 For the present invention Figure 3 Schematic diagram of the local cross-section structure;

[0028] Figure 5 This is a schematic diagram of three structures of the hollow shaft of the present invention;

[0029] Figure 6 For the present invention Figure 4 Schematic diagram of the local cross-section structure;

[0030] Figure 7 For the present invention Figure 6 Schematic diagram of the local cross-section structure;

[0031] Figure 8 For the present invention Figure 7 Another structural diagram;

[0032] Figure 9 For the present invention Figure 7 Schematic diagram of the local cross-section structure;

[0033] Figure 10 For the present invention Figure 9 Schematic diagram of the local cross-section structure;

[0034] Figure 11 For the present invention Figure 10 Schematic diagram of the local cross-section structure;

[0035] Figure 12 This is a structural diagram of Example 2 of the present invention.

[0036] In the figure: 1-test bench; 11-support plate; 12-guide rod; 2-bidirectional extrusion plate; 3-movable top plate; 4-pushing member; 5-driving member; 41-mounting frame; 42-dual-axis motor; 43-axis 1; 44-screw; 45-movable push plate; 46-groove; 47-rectangular plate; 48-pressure sensor; 49-axis 2; 51-connecting rod; 52-hollow axis 3; 53-L-shaped plate; 54-axis 4; 55-driving motor; 56-gear disc 1; 57-gear disc 2; 58-stroke adjustment assembly; 59-locking member; 61-injection barrel 1; 62-piston 1; 63-push rod 1; 64-hollow ring; 65- Through groove; 66-injection barrel two; 67-piston two; 68-push rod two; 69-tee; 71-injection barrel three; 72-piston three; 73-valve component one; 74-hollow cylinder one; 75-branch pipe; 76-rotating column one; 77-guide groove one; 78-guide groove two; 79-axis five; 81-electric push rod; 82-strip plate; 83-deflection plate; 84-guide groove; 85-axis six; 86-hollow push rod three; 87-injection barrel four; 88-piston four; 89-valve component two; 91-hollow cylinder two; 92-rotating column two; 93-guide groove three; 94-support block; 95-support rod; 96-positioning column. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figures 1-11 The present invention provides a technical solution: a component deformation testing device, comprising a test bench 1 and a support plate 11 mounted on the test bench 1, a guide rod 12 fixedly connected to the support plate 11, and further comprising:

[0039] A bidirectional extrusion plate 2 is slidably arranged on the guide rod 12;

[0040] Two movable top plates 3 are symmetrically arranged on both sides of the bidirectional extrusion plate 2 and are both slidably connected to the guide rod 12. The gap between the movable top plate 3 and the bidirectional extrusion plate 2 is used to install the test spring, which refers to the spring to be tested;

[0041] The pushing member 4 is provided on the test bench 1 and connected to the two movable top plates 3, and is used to drive the two movable top plates 3 to move relative to the bidirectional extrusion plate 2 to clamp the test spring and squeeze the test spring to half of its preset compression value. Specifically, the test springs on both sides of the bidirectional extrusion plate 2 are first compressed to half of their preset compression value by the movable top plate 3, and then the bidirectional extrusion plate 2 is driven by the driving member 5 to reciprocate and squeeze the test springs on both sides thereof. When the test spring on one side is compressed to the preset value, the test spring on the other side is released, thereby completing the test operation;

[0042] The driving member 5 is provided on the test bench 1 and connected to the bidirectional extrusion plate 2, and is used to drive the bidirectional extrusion plate 2 to move back and forth, so as to alternately squeeze the test springs on both sides thereof, and at the same time alternately release the test springs on both sides thereof, so as to utilize the alternately released test springs on both sides of the bidirectional extrusion plate 2 to directly assist in pushing the bidirectional extrusion plate 2 to move;

[0043] Specifically, the device divides the test springs equally and symmetrically and places them on both sides of the bidirectional extrusion plate 2 for testing. The driving member 5 drives the bidirectional extrusion plate 2 to reciprocate. When it moves to the left, the spring on the left is compressed to store energy; at this time, the originally compressed spring on the right releases energy, which is converted into mechanical energy to generate a rightward thrust on the bidirectional extrusion plate 2. When the bidirectional extrusion plate 2 moves to the right, the situation is reversed, the spring on the right is compressed to store energy, and the spring on the left releases energy to generate a leftward thrust.

[0044] This movement and energy conversion mechanism means that the driving member 5 does not need to continuously output a large amount of power to maintain the reciprocating motion of the bidirectional extrusion plate 2. With the help of the elastic potential energy stored and released by the test spring during the reciprocating process, the device can complete part of the power assistance work, effectively reducing the load on the driving member 5 and related transmission components, and extending the service life of the device.

[0045] The pushing member 4 includes a mounting frame 41 arranged between the two movable top plates 3, the mounting frame 41 is connected to the support plate 11, and a dual-axis motor 42 is fixedly connected to the mounting frame 41, and the two output shafts of the dual-axis motor 42 are fixedly connected to a shaft 1 43, and a screw 44 with a thread running through the movable top plate 3 is fixedly connected to the shaft 1 43. Starting the dual-axis motor 42 drives the shaft 1 43 at both ends to rotate, thereby driving the screw 44 to rotate, and then driving the two movable top plates 3 to move toward the bidirectional extrusion plate 2. Specifically, the moving action of this movable top plate 3 has two functions. The first function is to press the test spring onto the bidirectional extrusion plate 2, and the second function is to press the test spring onto the bidirectional extrusion plate 2. After the spring is compressed, the movable top plate 3 is continued to be moved to compress the test spring according to the preset compression amount of the test spring, and is compressed to half of its preset compression amount. When a value appears on the pressure sensor 48 on a movable top plate 3, it indicates that the movable top plate 3 has compressed both ends of the test spring. Then, the dual-axis motor 42 is continued to be started through program control to drive the movable top plate 3 to move to compress the test spring. At this time, the value of the pressure sensor 48 can be used to determine whether the test spring is compressed to half of the set value, or the moving distance of the movable top plate 3 can be controlled by controlling the number of rotations of the dual-axis motor 42 to compress the test spring to half of the set value.

[0046] The movable top plate 3 located on the upper side of the bidirectional extrusion plate 2 adopts a split design, which includes a movable push plate 45. A groove 46 is opened on one side of the movable push plate 45, and a rectangular plate 47 is slidably connected in the groove 46. A pressure sensor 48 electrically connected to the controller of the dual-axis motor 42 is installed between the rectangular plate 47 and the movable push plate 45, which is used to detect the compression amount of the test spring when the movable top plate 3 presses the test spring.

[0047] The driving member 5 includes a second shaft 49 fixedly connected to both sides of the bidirectional extrusion plate 2, a connecting rod 51 being rotatably connected to the second shaft 49, a third hollow shaft 52 being rotatably connected to the test bench 1, an L-shaped plate 53 being provided at the end of the hollow shaft 52, one end of the L-shaped plate 53 being fixedly connected to a fourth shaft 54 ​​rotatably connected to one end of the connecting rod 51;

[0048] A drive motor 55 is fixedly connected inside the test bench 1, a gear disc 1 56 is fixedly connected to the hollow shaft 3 52, and a gear disc 2 57 engaged with the gear disc 1 56 is fixedly connected to the output shaft of the drive motor 55. The drive motor 55 is started to drive the bidirectional extrusion plate 2 to move. Specifically, when the shaft 4 54 is not coaxial with the hollow shaft 3 52, the drive motor 55 is started to drive the hollow shaft 3 52 to rotate, thereby driving the L-shaped plate 53 to rotate, and then driving the connecting rod 51 to move, thereby driving the bidirectional extrusion plate 2 to reciprocate.

[0049] The driving motor 55 is a self-locking motor and its number of rotations can be specifically controlled by a program to accurately test the number of times, and a stroke adjustment component 58 is provided on the hollow shaft three 52, which is used to adjust the test stroke of the bidirectional extrusion plate 2 while the movable top plate 3 compresses the test spring. Specifically, when the movable top plate 3 is driven to move the compressed test spring to half of its preset compression amount, initially, the shaft four 54 and the hollow shaft three 52 are in a concentric state, and the moving direction of the shaft four 54 is perpendicular to the moving direction of the bidirectional extrusion plate 2, thereby ensuring that the initial state of the bidirectional extrusion plate 2 is in an intermediate state. The stroke adjustment component 58 drives the shaft four 54 to move a distance of half the compression amount of the test spring relative to the hollow shaft three 52, so that when the bidirectional extrusion plate 2 is working, it can be achieved that the test spring on one side is fully compressed while the test spring on the other side is completely released;

[0050] The mounting bracket 41 is slidably connected to the support plate 11, and a locking member 59 is provided on the mounting bracket 41 for locking the mounting bracket 41 and the support plate 11, and releasing the lock of the mounting bracket 41 when the movable top plate 3 compresses the test spring. Specifically, when adjusting the stroke of the bidirectional extrusion plate 2, the connecting rod 51 will be driven to deflect, and then the bidirectional extrusion plate 2 must be driven to move. In order to ensure that the bidirectional extrusion plate 2 is in the middle position of the two movable top plates 3, the two movable top plates 3 need to move and adjust synchronously with the bidirectional extrusion plate 2. At the same time, after adjusting the position, the mounting bracket 41 is locked on the support plate 11 again.

[0051] The stroke adjustment assembly 58 includes an injection barrel 61 electrically connected to the hollow shaft 3 52 . The injection barrel 61 is filled with hydraulic oil. A piston 62 is slidably connected to the injection barrel 61 . One end of the piston 62 is fixedly connected to a push rod 63 , one end of which is fixed to the L-shaped plate 53 . Hydraulic oil is filled into the injection barrel 61 to move the piston 62 , thereby moving the push rod 63 and the L-shaped plate 53 , thereby moving the shaft 4 54 away from the hollow shaft 3 52 .

[0052] A hollow ring 64 is rotatably connected to the hollow shaft 3 52 , and a plurality of through slots 65 communicating with the hollow ring 64 are evenly and equidistantly provided on the hollow shaft 3 . An injection barrel 2 66 is fixedly connected to the mounting frame 41 . The injection barrel 2 66 is also filled with hydraulic oil. A piston 2 67 is slidably connected to the injection barrel 2 66 . One end of the piston 2 67 is fixedly connected to a push rod 2 68 , one end of which is fixedly connected to the movable top plate 3 . A three-way pipe 69 is conductively connected to one side of the injection barrel 2 66 . A three-way pipe 69 is conductively connected to an injection barrel 3 71 on one side. The injection barrel 3 71 is also filled with hydraulic oil. A piston 3 72 is slidably connected to the injection barrel 3 71 . The three-way pipe 69 is conductively connected to the hollow ring 64 through a conduit.

[0053] A valve member 1 73 is provided in the tee pipe 69 for connecting the second injection barrel 66 with the third injection barrel 71 and sealing the first injection barrel 61 when the movable top plate 3 moves to contact the test spring. Subsequently, when the movable top plate 3 continues to move to compress the test spring, the second injection barrel 66 and the first injection barrel 61 are connected to drive the fourth shaft 54 ​​to move.

[0054] Specifically, a certain distance of the initial movement of the movable top plate 3 is used to install the test spring. During this process, the hydraulic oil in the injection barrel 2 66 will flow into the injection barrel 3 71 through the tee pipe 69 for storage. When the test spring is installed, the pressure sensor 48 controls the electric push rod 81 through the program to connect the injection barrel 2 66 with the injection barrel 1 61. When the movable top plate 3 moves to compress the test spring, the hydraulic oil in the injection barrel 2 66 will be filled into the injection barrel 1 61, thereby pushing the shaft 4 54 to move, so as to adjust the working stroke of the bidirectional extrusion plate 2 accordingly. After the stroke adjustment of the bidirectional extrusion plate 2 is completed, the electric push rod 81 is controlled by the program to reset, and then the injection barrel 1 61 is re-blocked, and the hollow push rod 3 86 is blocked at the same time to re-lock the mounting frame 41 and the support plate 11.

[0055] The tee pipe 69 includes a hollow cylinder 1 74, and three branch pipes 75 are conductively connected to the hollow cylinder 1 74. The three branch pipes 75 are conductively connected to the injection barrel 2 66, the injection barrel 1 61, and the injection barrel 3 71 respectively;

[0056] Valve member 1 73 includes a rotating column 1 76 rotatably connected to hollow cylinder 1 74 . A guide groove 1 77 is defined in rotating column 1 76 for connecting injection barrel 2 66 and injection barrel 3 71 . A guide groove 2 78 is defined in rotating column 1 76 , which is perpendicular to and connected to guide groove 1 77 . A shaft 5 79 is fixedly connected to rotating column 1 76 , one end of which passes through hollow cylinder 1 74 .

[0057] Specifically, shaft five 79 adopts a segmented design and is divided into three sections. One end of the first section is fixedly connected to rotating column one 76, and the other end passes through hollow cylinder one 74 and then is fixedly connected to support rod 95. The two ends of the middle section pass through hollow cylinder one 74 and hollow cylinder two 91 respectively and are fixedly connected to rotating column one 76 and rotating column two 92 respectively. One end of the last section is fixedly connected to rotating column two 92, and the other end passes through hollow cylinder two 91 and is fixedly connected to deflection plate 83.

[0058] In the initial state, guide groove 1 77 connects injection barrel 3 71 and injection barrel 2 66, while injection barrel 1 61 is in a blocked state. Then, rotating shaft 5 79 drives rotating column 1 76 to rotate, thereby cooperating with guide groove 1 77 through guide groove 2 78 to connect injection barrel 1 61 and injection barrel 2 66, and at the same time block injection barrel 3 71.

[0059] An electric push rod 81 electrically connected to the pressure sensor 48 is fixedly connected to the mounting frame 41, the extended end of the electric push rod 81 is fixedly connected to a strip plate 82, and one end of the shaft 5 79 is fixedly connected to a deflection plate 83, one end of the strip plate 82 is provided with a guide groove 84, and one end of the deflection plate 83 is fixedly connected to a shaft 6 85 that slides through the guide groove 84. Starting the electric push rod 81 drives the strip plate 82 to move, and then drives the deflection plate 83 to deflect, thereby driving the shaft 5 79 to rotate.

[0060] A hollow push rod 3 86 is fixedly connected to the mounting frame 41, and an injection barrel 4 87 fixedly connected to the support plate 11 is respectively provided at both ends of the hollow push rod 3 86. The injection barrel 4 87 is filled with hydraulic oil. The end of the hollow push rod 3 86 is located in the injection barrel 4 87 and is fixedly connected to a piston 4 88. The piston 4 88 is slidably connected to the inner wall of the injection barrel 4 87. The hollow push rod 3 86 is conductively connected to the inner wall of the injection barrel 4 87, and a valve part 2 89 is provided on the hollow push rod 3 86 for blocking the hollow push rod 3 86 and When the movable top plate 3 compresses the spring, the hollow push rod 3 86 is turned on. Specifically, when the hollow push rod 3 86 is in a blocked state, the hydraulic oil in the injection barrels 4 87 at both ends of the hollow push rod 3 86 cannot flow, thereby achieving the effect of locking the mounting frame 41 to the support plate 11. When the stroke of the bidirectional extrusion plate 2 is to be adjusted, the blocked state of the hollow push rod 3 86 is released, so that the hydraulic oil in the injection barrels 4 87 at both ends can flow freely, thereby releasing the locking state between the mounting frame 41 and the support plate 11.

[0061] Valve member 2 89 includes a hollow cylinder 2 91 electrically connected to hollow push rod 3 86 . A rotating column 2 92 is rotatably connected within hollow cylinder 2 91 . Shaft 5 79 is fixedly connected to rotating column 2 92 . A guide groove 3 93 is defined within rotating column 2 92 . In an initial state, guide groove 3 93 is not electrically connected to hollow push rod 3 86 . When the spring is compressed by movable top plate 3 , shaft 5 79 rotates, driving rotating column 2 92 to rotate, causing guide groove 3 93 to electrically connect to hollow push rod 3 86 .

[0062] A support block 94 is fixedly connected to the bidirectional extrusion plate 2, and a support rod 95 is fixedly connected to one end of the shaft five 79. When the movable top plate 3 compresses the spring, the shaft five 79 drives the support rod 95 to deflect and contact the support block 94. Then, when the movable top plate 3 compresses the spring, the bidirectional extrusion plate 2 is always in the middle position between the two movable top plates 3 to reduce the test error.

[0063] Example 2: Please refer to Figures 1-12 , the present invention provides a technical solution: Example 2 is optimized based on Example 1;

[0064] A plurality of positioning posts 96 are evenly and evenly fixedly connected on a movable top plate 3, and a plurality of positioning posts 96 are also evenly and evenly fixedly connected on the rectangular plate 47. A plurality of positioning posts 96 are also evenly and evenly fixedly connected on both sides of the bidirectional extrusion plate 2. The positioning posts 96 are used to install the test spring to improve the stability of the device during operation.

[0065] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0066] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A component deformation testing device, comprising a test bench (1) and a support plate (11) mounted on the test bench (1), wherein a guide rod (12) is fixedly connected to the support plate (11), characterized in that: Also included are: A bidirectional extrusion plate (2) is slidably arranged on the guide rod (12); Two movable top plates (3) are symmetrically arranged on both sides of the bidirectional extrusion plate (2) and are both slidably connected to the guide rod (12). The gap between the movable top plate (3) and the bidirectional extrusion plate (2) is used to install a test spring; A pusher (4) is provided on the test bench (1) and connected to the two movable top plates (3), and is used to drive the two movable top plates (3) to move relative to the bidirectional extrusion plate (2) to clamp the test spring and compress the test spring to half of its preset compression value; A driving member (5) is provided on the test bench (1) and connected to the bidirectional extrusion plate (2), and is used to drive the bidirectional extrusion plate (2) to move back and forth, and its moving stroke is a preset compression value of the spring, so as to alternately squeeze the test springs on both sides thereof, and simultaneously alternately release the test springs on both sides thereof, so as to utilize the test springs alternately released on both sides of the bidirectional extrusion plate (2) to directly assist in pushing the bidirectional extrusion plate (2) to move; The driving member (5) includes a second shaft (49) fixedly connected to both sides of the bidirectional extrusion plate (2), a connecting rod (51) being rotatably connected to the second shaft (49), a third hollow shaft (52) being rotatably connected inside the test bench (1), an L-shaped plate (53) being provided at the end of the third hollow shaft (52), and a fourth shaft (54) being rotatably connected to one end of the connecting rod (51) being fixedly connected to one end of the L-shaped plate (53); A driving motor (55) connected to the hollow shaft (52) is fixedly connected in the test bench (1), and the driving motor (55) is started to drive the bidirectional extrusion plate (2) to move; The driving motor (55) is a self-locking motor, and a stroke adjustment component (58) is provided on the hollow shaft (52) for adjusting the test stroke of the bidirectional extrusion plate (2) while the movable top plate (3) compresses the test spring; The pushing member (4) includes a mounting frame (41) arranged between two movable top plates (3); The stroke adjustment assembly (58) includes an injection barrel (61) conductively connected to the hollow shaft (52), and the injection barrel (61) is filled with hydraulic oil. A piston (62) is slidably connected to the injection barrel (61), and one end of the piston (62) is fixedly connected to a push rod (63) whose other end is fixed to the L-shaped plate (53). Hydraulic oil is filled into the injection barrel (61) to drive the shaft (54) away from the hollow shaft (52); A hollow ring (64) is rotatably connected to the hollow shaft (52), and a plurality of through grooves (65) connected to the hollow ring (64) are evenly and equidistantly provided on the hollow shaft (52). An injection barrel (66) is fixedly connected to the mounting frame (41), and the injection barrel (66) is also filled with hydraulic oil. A piston (67) is slidably connected to the injection barrel (66), and one end of the piston (67) is fixedly connected to a push rod (68) whose one end is fixed to the movable top plate (3). One side of the injection barrel (66) is conductively connected to a three-way pipe (69), and one side of the three-way pipe (69) is conductively connected to an injection barrel (71), and the injection barrel (71) is also filled with hydraulic oil. A piston (72) is slidably connected to the injection barrel (71), and the three-way pipe (69) is conductively connected to the hollow ring (64) through a conduit. A valve member 1 (73) is provided in the three-way pipe (69), which is used to connect the injection barrel 2 (66) with the injection barrel 3 (71) to transmit hydraulic oil and seal the injection barrel 1 (61) when the movable top plate (3) moves to contact the test spring. Then, when the movable top plate (3) continues to move to compress the test spring, the injection barrel 2 (66) is connected with the injection barrel 1 (61) to drive the shaft 4 (54) to move, thereby adjusting the test stroke of the bidirectional extrusion plate (2).

2. The component deformation testing device according to claim 1, characterized in that: The mounting frame (41) is connected to the support plate (11), and a dual-axis motor (42) is fixedly connected to the mounting frame (41), and two output shafts of the dual-axis motor (42) are fixedly connected to a shaft 1 (43), and a screw (44) threadedly penetrating the movable top plate (3) is fixedly connected to the shaft 1 (43).

3. The component deformation testing device according to claim 2, characterized in that: The movable top plate (3) located on one side of the bidirectional extrusion plate (2) adopts a split design, which includes a movable push plate (45), a groove (46) is opened on one side of the movable push plate (45), a rectangular plate (47) is slidably connected in the groove (46), and a pressure sensor (48) electrically connected to the controller of the dual-axis motor (42) is installed between the rectangular plate (47) and the movable push plate (45) for detecting the compression amount of the test spring when the movable top plate (3) presses the test spring.

4. The component deformation testing device according to claim 3, characterized in that: The hollow shaft three (52) is fixedly connected to a toothed disc one (56), and the output shaft of the drive motor (55) is fixedly connected to a toothed disc two (57) meshing with the toothed disc one (56). When the drive motor (55) is started, the hollow shaft three (52) is driven to rotate.

5. The component deformation testing device according to claim 4, characterized in that: The mounting frame (41) is slidably connected to the support plate (11), and a locking member (59) is provided on the mounting frame (41) for locking the mounting frame (41) and the support plate (11), and releasing the locking of the mounting frame (41) when the movable top plate (3) compresses the test spring.

6. The component deformation testing device according to claim 5, characterized in that: The three-way pipe (69) includes a hollow cylinder (74), and three branch pipes (75) are connected to the hollow cylinder (74), and the three branch pipes (75) are connected to the injection barrel (66), the injection barrel (61), and the injection barrel (71) respectively. The valve member 1 (73) includes a rotating column 1 (76) rotatably connected to the hollow cylinder 1 (74), a guide groove 1 (77) is provided in the rotating column 1 (76) for conducting the injection barrel 2 (66) and the injection barrel 3 (71), and a guide groove 2 (78) is provided in the rotating column 1 (76) and is perpendicular to and connected to the guide groove 1 (77), and a shaft 5 (79) is fixedly connected to the rotating column 1 (76) with one end passing through the hollow cylinder 1 (74), and is used to rotate the shaft 5 (79) to drive the rotating column 1 (76) to rotate, so as to conduct the injection barrel 2 (66) and the injection barrel 1 (61); An electric push rod (81) electrically connected to the pressure sensor (48) is fixedly connected to the mounting frame (41), the extended end of the electric push rod (81) is fixedly connected to a strip plate (82), and one end of the shaft five (79) is fixedly connected to a deflection plate (83), one end of the strip plate (82) is provided with a guide groove (84), and one end of the deflection plate (83) is fixedly connected to a shaft six (85) that slides through the guide groove (84), and the electric push rod (81) is started to drive the shaft five (79) to rotate.

7. The component deformation testing device according to claim 6, characterized in that: A hollow push rod 3 (86) is fixedly connected to the mounting frame (41), and both ends of the hollow push rod 3 (86) are respectively provided with an injection barrel 4 (87) fixedly connected to the support plate (11), and the injection barrel 4 (87) is filled with hydraulic oil. The end of the hollow push rod 3 (86) is located in the injection barrel 4 (87) and is fixedly connected to a piston 4 (88), and the piston 4 (88) is slidably connected to the inner wall of the injection barrel 4 (87), and a valve part 2 (89) is provided on the hollow push rod 3 (86) for blocking the hollow push rod 3 (86) and conducting the hollow push rod 3 (86) when the movable top plate (3) compresses the test spring.

8. The component deformation testing device according to claim 7, characterized in that: The valve member 2 (89) includes a hollow cylinder 2 (91) conductively connected to the hollow push rod 3 (86), a rotating column 2 (92) is rotatably connected in the hollow cylinder 2 (91), the shaft 5 (79) is fixedly connected to the rotating column 2 (92), and a guide groove 3 (93) is provided in the rotating column 2 (92); A support block (94) is fixedly connected to the bidirectional extrusion plate (2), and one end of the shaft five (79) is fixedly connected to a support rod (95). When the movable top plate (3) compresses the spring, the shaft five (79) drives the support rod (95) to deflect and contact the support block (94).

9. The component deformation testing device according to claim 8, characterized in that: A plurality of positioning columns (96) are evenly and evenly fixedly connected to one movable top plate (3), and a plurality of positioning columns (96) are also evenly and evenly fixedly connected to the rectangular plate (47). Both sides of the bidirectional extrusion plate (2) are also evenly and evenly fixedly connected to multiple positioning columns (96).

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