Part deformation testing device

Abstract

The invention relates to the technical field of testing equipment, in particular to a part deformation testing device which comprises a testing table and a supporting plate installed on the testing table, a guide rod is fixedly connected to the supporting plate, the part deformation testing device further comprises a two-way extrusion plate arranged on the guide rod in a sliding mode, and movable top plates are arranged on the two sides of the two-way extrusion plate. According to the device, the test springs are equally and symmetrically arranged on the two sides of the bidirectional extrusion plate for testing, the driving piece drives the bidirectional extrusion plate to reciprocate, when the driving piece moves leftwards, the left spring is compressed to store energy, and the originally compressed spring on the right side releases energy to generate rightward thrust on the bidirectional extrusion plate; the right spring is compressed to store energy, and the left spring releases energy to generate leftward thrust; under the motion and energy conversion mechanism, the driving piece does not need to continuously output large power to maintain reciprocating motion of the bidirectional extrusion plate, and by means of energy storage and energy release of the test spring, the device can complete partial power assistance, reduce loads of the driving piece and related transmission parts and prolong the service life of the device.

Description

Technical Field

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

[0002] General components refer to those parts and components that are widely used in various machines, equipment, and systems, have the characteristics of standardization and serialization, can be mass-produced and interchangeably used. For example, a spring is one of them. After the spring is produced, in order to ensure that its performance meets the design requirements, strict quality inspection must be carried out. Among them, fatigue testing is a crucial link. Fatigue testing aims to simulate the stress situation of the spring during actual operation, and detect its performance changes and reliability after long-term repeated stress. At present, one of the common spring fatigue testing methods is to use a reciprocating pressing plate to repeatedly squeeze the spring. During specific operation, the pressing plate is moved to a set position, a certain pressure is applied to the spring to make it reach a predetermined compression degree, and then the pressing plate reciprocates, continuously repeating this squeezing process. In this way, the situation where the spring frequently bears loads during actual use is simulated, so as to evaluate the fatigue life and performance stability of the spring. However, in the existing spring testing equipment, when multiple springs need to be tested simultaneously, there is a problem that urgently needs to be solved. These devices often need to press multiple springs at the same time, which poses extremely high load requirements on the driving components of the device. The driving components not only have to overcome the elastic forces of multiple springs, but also ensure the smoothness and accuracy of the movement of the pressing plate to ensure the accuracy of the test results. Long-term high-load operation will not only accelerate the wear of the driving components, reduce the service life of the equipment, but also may 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

[0003] To solve the above technical problems, the embodiment of the present application provides a component deformation testing device, including a test bench and a support plate installed on the test bench. A guide rod is fixedly connected to the support plate. It also includes a two-way pressing plate slidably arranged on the guide rod. Moving plates are arranged on both sides of the two-way pressing plate, and the moving plates are slidably connected to the guide rod. The gap between the moving plate and the two-way pressing plate is used to install the test spring. A pushing member connected to the moving plate is arranged on the test bench, which is used to drive the two moving plates to move relative to the two-way pressing plate to clamp the test spring and squeeze the test spring to half of its preset compression value. A driving member connected to the two-way pressing plate is arranged on the test bench, which is used to drive the two-way pressing 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 of it, and at the same time alternately release the test springs on both sides of it, so as to directly assist the movement of the two-way pressing plate by using the test springs alternately released on both sides of the two-way pressing plate.

[0004] In some embodiments, the pushing member includes a mounting frame disposed 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. Shafts I are fixedly connected to both output shafts of the dual-axis motor, and screw rods that thread through the movable top plates are fixedly connected to the shafts I.

[0005] In some embodiments, the movable top plate on one side of the bidirectional extrusion plate is designed in a split manner. It includes a movable push plate. A groove is formed on one side of the movable push plate, and a rectangular plate is slidably connected in the groove. A pressure sensor electrically connected to the controller of the dual-axis motor is installed between the rectangular plate and the movable push plate, and is used to detect the compression amount of the test spring when the movable top plate compresses the test spring.

[0006] In some embodiments, the driving member includes shafts II fixedly connected to both sides of the bidirectional extrusion plate. Connecting rods are rotatably connected to the shafts II. A hollow shaft III is rotatably connected in the test bench. An L-shaped plate is provided at the end of the hollow shaft III. One end of the L-shaped plate is fixedly connected to a shaft IV rotatably connected to one end of the connecting rod; And a driving motor is fixedly connected in the test bench. A gear disk I is fixedly connected to the hollow shaft III. A gear disk II meshing with the gear disk I is fixedly connected to the output shaft of the driving motor. Starting the driving motor drives the bidirectional extrusion plate to move.

[0007] In some embodiments, the driving motor is a self-locking motor, and a stroke adjustment assembly is provided on the hollow shaft III, and is used to adjust the test stroke of the bidirectional extrusion plate while the movable top plate compresses the test spring; And the mounting frame is slidably connected to the support plate. A locking member is provided on the mounting frame to lock the mounting frame and the support plate, and unlock the mounting frame when the movable top plate compresses the test spring.

[0008] In some embodiments, the stroke adjustment assembly includes an injection barrel I conductively connected to the hollow shaft III. The injection barrel I is filled with hydraulic oil. A piston I is slidably connected in the injection barrel I. One end of the piston I is fixedly connected to a push rod I fixedly connected to one end of the L-shaped plate. Hydraulic oil is filled into the injection barrel I to drive the shaft IV away from the hollow shaft III; A hollow ring is rotatably connected to the third hollow shaft, and a plurality of through grooves communicating with the hollow ring are equidistantly and uniformly formed on the third hollow shaft. An injection barrel two is fixedly connected to the mounting bracket. The injection barrel two is also filled with hydraulic oil. A piston two is slidably connected in the injection barrel two. One end of the piston two is fixedly connected to a push rod two whose one end is fixed to the movable top plate. One side of the injection barrel two is conductively connected to a three-way pipe. One side of the three-way pipe is conductively connected to an injection barrel three. The injection barrel three is also filled with hydraulic oil, and a piston three is slidably connected in the injection barrel three. The three-way pipe is conductively connected to the hollow ring through a conduit; And a valve member one is arranged in the three-way pipe. When the movable top plate moves to contact the test spring, the injection barrel two and the injection barrel three are conducted to transfer hydraulic oil, and the injection barrel one is blocked. Subsequently, when the movable top plate continues to move to compress the test spring, the injection barrel two and the injection barrel one are conducted to drive the fourth shaft to move.

[0009] In some embodiments, the three-way pipe includes a hollow cylinder one. Three branch pipes are conductively connected to the hollow cylinder one. The three branch pipes are respectively conductively connected to the injection barrel two, the injection barrel one, and the injection barrel three; The valve member one includes a rotating column one rotatably connected in the hollow cylinder one. A guide groove one is formed in the rotating column one for conducting the injection barrel two and the injection barrel three. And a guide groove two perpendicular to and communicating with the guide groove one is formed in the rotating column one. A shaft five whose one end passes through the hollow cylinder one is fixedly connected to the rotating column one for rotating the shaft five to drive the rotating column one to rotate so as to conduct the injection barrel two and the injection barrel one; An electric push rod electrically connected to the pressure sensor is fixedly connected to the mounting bracket. The extending end of the electric push rod is fixedly connected to a strip plate. One end of the shaft five is fixedly connected to a deflection plate. A guide groove is formed at one end of the strip plate. And a shaft six slidably passing through the guide groove is fixedly connected to one end of the deflection plate. The electric push rod is started to drive the shaft five to rotate.

[0010] In some embodiments, a hollow push rod three is fixedly connected to the mounting bracket. Injection barrels four fixedly connected to the support plate are respectively arranged at both ends of the hollow push rod three. The injection barrels four are filled with hydraulic oil. The end of the hollow push rod three is located in the injection barrel four and fixedly connected to a piston four. The piston four is slidably connected to the inner wall of the injection barrel four. And a valve member two is arranged on the hollow push rod three for blocking the hollow push rod three and conducting the hollow push rod three when the movable top plate compresses the test spring.

[0011] In some embodiments, the valve member two includes a hollow cylinder two conductively connected to the hollow push rod three. A rotating column two is rotatably connected in the hollow cylinder two. The shaft five is fixedly connected to the rotating column two. And a guide groove three is formed in the rotating column two; And a support block is fixedly connected to the bidirectional extrusion plate. One end of the fifth shaft is fixedly connected with a support rod. When the movable top plate compresses the spring, the fifth shaft drives the support rod to deflect and contact the support block.

[0012] In some embodiments, a plurality of positioning columns are fixedly connected to one of the movable top plates at equal intervals and uniformly. Similarly, a plurality of positioning columns are fixedly connected to the rectangular plate at equal intervals and uniformly. A plurality of positioning columns are also fixedly connected to both sides of the bidirectional extrusion plate at equal intervals and uniformly.

[0013] The present invention has at least the following beneficial effects: 1. In this device, the test springs are symmetrically placed on both sides of the bidirectional extrusion plate for testing. The driving member drives the bidirectional extrusion plate to reciprocate. When moving left, the spring on the left side is compressed and stores energy, and the spring on the right side that was originally compressed releases energy, generating a rightward thrust on the bidirectional extrusion plate; when moving right, the situation is reversed, the spring on the right side is compressed and stores energy, and the spring on the left side releases energy to generate a leftward thrust. Under this motion and energy conversion mechanism, the driving member does not need to continuously output a large amount of power to maintain the reciprocating motion of the bidirectional extrusion plate. With the help of the energy storage and release of the test springs, the device can complete part of the power assistance, reduce the load on the driving member and related transmission components, and extend the service life of the device.

[0014] 2. This device is adapted to test springs with different compression amounts through the cooperation of the pushing member and the stroke adjustment assembly, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 For the present invention Figure 1 Another orientation structural schematic diagram; Figure 3 For the present invention Figure 1 Partial cross-sectional structural schematic diagram; Figure 4 For the present invention Figure 3 Partial cross-sectional structural schematic diagram; Figure 5 It is a schematic diagram of the structure at three positions of the hollow shaft of the present invention; Figure 6 For the present invention Figure 4 Partial cross-sectional structural schematic diagram; Figure 7 For the present invention Figure 6 Partial cross-sectional structural schematic diagram; Figure 8 For the present invention Figure 7 Another orientation structural schematic diagram; Figure 9 For the present invention Figure 7 Partial cross-sectional structural schematic diagram; Figure 10 For the present inventionFigure 9 Schematic diagram of sectional structure; Figure 11 For the present invention Figure 10 Schematic diagram of sectional structure; Figure 12 It is a schematic diagram of the structure of Embodiment 2 of the present invention.

[0016] In the figure: 1 - test bench; 11 - support plate; 12 - guide rod; 2 - bidirectional extrusion plate; 3 - movable top plate; 4 - pusher; 5 - driving member; 41 - mounting frame; 42 - dual-axis motor; 43 - shaft one; 44 - screw; 45 - movable push plate; 46 - groove; 47 - rectangular plate; 48 - pressure sensor; 49 - shaft two; 51 - connecting rod; 52 - hollow shaft three; 53 - L-shaped plate; 54 - shaft four; 55 - driving motor; 56 - gear disk one; 57 - gear disk two; 58 - stroke adjustment assembly; 59 - locking member; 61 - injection barrel one; 62 - piston one; 63 - push rod one; 64 - hollow ring; 65 - through slot; 66 - injection barrel two; 67 - piston two; 68 - push rod two; 69 - three-way pipe; 71 - injection barrel three; 72 - piston three; 73 - valve member one; 74 - hollow cylinder one; 75 - branch pipe; 76 - rotating column one; 77 - guide groove one; 78 - guide groove two; 79 - shaft five; 81 - electric push rod; 82 - strip-shaped plate; 83 - deflecting plate; 84 - guide groove; 85 - shaft six; 86 - hollow push rod three; 87 - injection barrel four; 88 - piston four; 89 - valve member two; 91 - hollow cylinder two; 92 - rotating column two; 93 - guide groove three; 94 - support block; 95 - support rod; 96 - positioning column. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Embodiment 1: Please refer to Figures 1-11 , the present invention provides a technical solution: a component deformation testing device, including a test bench 1 and a support plate 11 installed on the test bench 1. A guide rod 12 is fixedly connected to the support plate 11, and further includes: A bidirectional extrusion plate 2, slidably arranged on the guide rod 12; Two movable top plates 3, symmetrically arranged on both sides of the bidirectional extrusion plate 2 and 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, and the test spring refers to the spring to be tested; The pushing member 4 is arranged 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 relatively towards the two-way extrusion plate 2, so as to clamp the test spring and extrude the test spring to half of its preset compression value. Specifically, the test springs on both sides of the two-way extrusion plate 2 are first compressed to half of their preset compression values by the movable top plates 3. Subsequently, when the driving member 5 drives the two-way extrusion plate 2 to reciprocally extrude the test springs on both sides thereof, while compressing the test spring on one side to the preset value, the test spring on the other side will be released, thereby completing the test operation. The driving member 5 is arranged on the test bench 1 and connected to the two-way extrusion plate 2, and is used to drive the two-way extrusion plate 2 to reciprocally move, so as to alternately extrude the test springs on both sides thereof, and simultaneously alternately release the test springs on both sides thereof, so as to directly assist in driving the two-way extrusion plate 2 to move by using the test springs alternately released on both sides of the two-way extrusion plate 2. Specifically, the test springs of this device are equally divided and symmetrically arranged on both sides of the two-way extrusion plate 2 for testing. The driving member 5 drives the two-way extrusion plate 2 to reciprocate. When moving to the left, the left spring 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 two-way extrusion plate 2. When the two-way extrusion plate 2 moves 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. This movement and energy conversion mechanism enables the driving member 5 not to continuously output a large amount of power to maintain the reciprocating movement of the two-way extrusion plate 2. By means 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.

[0019] The driving member 4 includes a mounting frame 41 disposed between 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. A first shaft 43 is fixedly connected to each of the two output shafts of the dual-axis motor 42. A screw rod 44 that threadedly penetrates the movable top plate 3 is fixedly connected to the first shaft 43. Starting the dual-axis motor 42 drives the first shafts 43 at both ends thereof to rotate, thereby driving the screw rod 44 to rotate, and further driving the two movable top plates 3 to move towards the double-sided pressing plate 2. Specifically, the movement of the movable top plate 3 has two functions. The first function is to press the test spring against the double-sided pressing plate 2. The second function is that after the test spring is pressed, according to the preset compression amount of the test spring, the movable top plate 3 continues to move to compress the test spring to half of its preset compression amount. Among them, when a pressure value appears on the pressure sensor 48 on one of the movable top plates 3, it indicates that the movable top plate 3 has pressed both ends of the test spring. Then, the dual-axis motor 42 is started again 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 rotation distance of the dual-axis motor 42 can be controlled to control the movement distance of the movable top plate 3 to compress the test spring to half of the set value.

[0020] The movable top plate 3 located above the double-sided pressing plate 2 is designed in a split manner. It includes a movable push plate 45. A groove 46 is formed on one side of the movable push plate 45. 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, and is used to detect the compression amount of the test spring when the movable top plate 3 presses the test spring.

[0021] The driving member 5 includes second shafts 49 fixedly connected to both sides of the double-sided pressing plate 2. A connecting rod 51 is rotatably connected to the second shafts 49. A hollow third shaft 52 is rotatably connected in the test bench 1. An L-shaped plate 53 is provided at the end of the hollow third shaft 52. One end of the L-shaped plate 53 is fixedly connected to a fourth shaft 54 that is rotatably connected to one end of the connecting rod 51; And a driving motor 55 is fixedly connected in the test bench 1. A first gear disk 56 is fixedly connected to the hollow third shaft 52. A second gear disk 57 that meshes with the first gear disk 56 is fixedly connected to the output shaft of the driving motor 55. Starting the driving motor 55 drives the double-sided pressing plate 2 to move. Specifically, when the fourth shaft 54 is not coaxial with the hollow third shaft 52, starting the driving motor 55 drives the hollow third shaft 52 to rotate, thereby driving the L-shaped plate 53 to rotate, and further driving the connecting rod 51 to move, thereby driving the double-sided pressing plate 2 to perform a reciprocating motion.

[0022] The driving motor 55 is a self-locking motor and its number of rotation turns can be specifically controlled by a program to accurately test the number of times. Moreover, a stroke adjustment component 58 is provided on the hollow shaft three 52 for adjusting the test stroke of the double-sided extrusion plate 2 while the movable top plate 3 compresses the test spring. Specifically, when driving the movable top plate 3 to move and compress the 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 double-sided extrusion plate 2, thereby ensuring that the double-sided extrusion plate 2 is in an intermediate state in the initial state. The shaft four 54 is driven by the stroke adjustment component 58 to move a distance equal to half of the compression amount of the test spring relative to the hollow shaft three 52, so that when the double-sided extrusion plate 2 works, it can achieve fully compressing the test spring on one side while fully releasing the test spring on the other side; Moreover, 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 unlocking the mounting bracket 41 when the movable top plate 3 compresses the test spring. Specifically, when adjusting the stroke of the double-sided extrusion plate 2, it will drive the connecting rod 51 to deflect, and thus must drive the double-sided extrusion plate 2 to move. In order to ensure that the double-sided extrusion plate 2 is in the middle position between the two movable top plates 3, two movable top plates 3 need to move synchronously with the double-sided extrusion plate 2 for adjustment. At the same time, after adjusting the position, the mounting bracket 41 is locked to the support plate 11 again.

[0023] The stroke adjustment component 58 includes an injection barrel one 61 that is conductively connected to the hollow shaft three 52, and the injection barrel one 61 is filled with hydraulic oil. A piston one 62 is slidably connected in the injection barrel one 61. One end of the piston one 62 is fixedly connected to a push rod one 63 whose one end is fixed to the L-shaped plate 53. Hydraulic oil is filled into the injection barrel one 61 to push the piston one 62 to move, and then drive the push rod one 63 and the L-shaped plate 53 to move, so as to drive the shaft four 54 away from the hollow shaft three 52; A hollow ring 64 is rotatably connected to the hollow shaft three 52. A plurality of through grooves 65 communicating with the hollow ring 64 are equidistantly and uniformly formed on the hollow shaft three 52. An injection barrel two 66 is fixedly connected to the mounting bracket 41. The injection barrel two 66 is also filled with hydraulic oil. A piston two 67 is slidably connected in the injection barrel two 66. One end of the piston two 67 is fixedly connected to a push rod two 68 whose one end is fixedly connected to the movable top plate 3. One side of the injection barrel two 66 is conductively connected to a three-way pipe 69. One side of the three-way pipe 69 is conductively connected to an injection barrel three 71. The injection barrel three 71 is also filled with hydraulic oil, and a piston three 72 is slidably connected in the injection barrel three 71. The three-way pipe 69 is conductively connected to the hollow ring 64 through a conduit; A valve member 1 is provided in the three-way pipe 69 to connect the injection barrel 2 and the injection barrel 3 and block the injection barrel 1 during the process of the movable top plate 3 moving to contact the test spring. Subsequently, when the movable top plate 3 continues to move to compress the test spring, the injection barrel 2 is connected to the injection barrel 1 to drive the shaft 4 to move; Specifically, during the initial movement of the movable top plate 3 over a certain distance, it is used to install the test spring. During this process, the hydraulic oil in the injection barrel 2 will flow into the injection barrel 3 through the three-way pipe 69 for storage. After the test spring is installed, the pressure sensor 48 controls the electric push rod 81 to work through a program, thereby connecting the injection barrel 2 and the injection barrel 1. Subsequently, while the movable top plate 3 moves to compress the test spring, the hydraulic oil in the injection barrel 2 is filled into the injection barrel 1, thereby pushing the shaft 4 to move to correspondingly adjust the working stroke of the double-sided extrusion plate 2. After the stroke of the double-sided extrusion plate 2 is adjusted, the electric push rod 81 is controlled to work and reset through a program, thereby blocking the injection barrel 1 again and blocking the hollow push rod 3 at the same time to re-lock the mounting bracket 4 and the support plate 1.

[0024] The three-way pipe 69 includes a hollow cylinder 1, and three branch pipes 5 are conductively connected to the hollow cylinder 1. The three branch pipes 5 are respectively conductively connected to the injection barrel 2, the injection barrel 1, and the injection barrel 3; The valve member 1 includes a rotating column 1 rotatably connected inside the hollow cylinder 1. A guide groove 1 is provided in the rotating column 1 for connecting the injection barrel 2 and the injection barrel 3. A guide groove 2 perpendicular to and communicating with the guide groove 1 is provided in the rotating column 1. A shaft 5 is fixedly connected to the rotating column 1, and one end of the shaft 5 passes through the hollow cylinder 1; Specifically, the shaft 5 adopts a segmented design and is divided into three sections. One end of the first section is fixedly connected to the rotating column 1, and the other end passes through the hollow cylinder 1 and is fixedly connected to the support rod 5. Both ends of the middle section pass through the hollow cylinder 1 and the hollow cylinder 2 respectively and are correspondingly fixedly connected to the rotating column 1 and the rotating column 2. One end of the last section is fixedly connected to the rotating column 2, and the other end passes through the hollow cylinder 2 and is fixedly connected to the deflection plate 3; In the initial state, the guide groove 1 connects the injection barrel 3 and the injection barrel 2, while the injection barrel 1 is in a blocked state. Then, the shaft 5 is rotated to drive the rotating column 1 to rotate, so that through the cooperation of the guide groove 2 and the guide groove 1, the injection barrel 1 and the injection barrel 2 are connected, and the injection barrel 3 is blocked at the same time; An electric push rod 81 electrically connected to a pressure sensor 48 is fixedly connected to the mounting bracket 41. An elongated end of the electric push rod 81 is fixedly connected to a strip plate 82. One end of the fifth shaft 79 is fixedly connected to a deflection plate 83. A guiding groove 84 is formed at one end of the strip plate 82. One end of the deflection plate 83 is fixedly connected to a sixth shaft 85 that slidably passes through the guiding groove 84. Starting the electric push rod 81 drives the strip plate 82 to move, thereby driving the deflection plate 83 to deflect, so as to drive the fifth shaft 79 to rotate.

[0025] A hollow push rod three 86 is fixedly connected to the mounting bracket 41. Injection barrels four 87 fixedly connected to the support plate 11 are respectively arranged at two ends of the hollow push rod three 86. The injection barrels four 87 are filled with hydraulic oil. An end of the hollow push rod three 86 is located inside the injection barrel four 87 and is fixedly connected to a piston four 88. The piston four 88 is slidably connected to the inner wall of the injection barrel four 87. The hollow push rod three 86 is conductively connected to the inner wall of the injection barrel four 87. A valve member two 89 is arranged on the hollow push rod three 86 for blocking the hollow push rod three 86 and conducting the hollow push rod three 86 when the movable top plate 3 compresses the spring. Specifically, when the hollow push rod three 86 is in a blocked state, the hydraulic oil in the injection barrels four 87 at both ends of the hollow push rod three 86 cannot flow, thereby achieving the effect of locking the mounting bracket 41 to the support plate 11. When adjusting the stroke of the double-sided extrusion plate 2, the blocking state of the hollow push rod three 86 is released, so that the hydraulic oil in the injection barrels four 87 at both ends thereof can flow freely, thereby releasing the locking state between the mounting bracket 41 and the support plate 11.

[0026] The valve member two 89 includes a hollow cylinder two 91 conductively connected to the hollow push rod three 86. A rotating column two 92 is rotatably connected inside the hollow cylinder two 91. The fifth shaft 79 is fixedly connected to the rotating column two 92. A guiding groove three 93 is formed inside the rotating column two 92. In the initial state, the guiding groove three 93 does not conduct the hollow push rod three 86. When the movable top plate 3 compresses the spring, the fifth shaft 79 rotates to drive the rotating column two 92 to rotate, so that the guiding groove three 93 conducts the hollow push rod three 86; A support block 94 is fixedly connected to the double-sided extrusion plate 2. One end of the fifth shaft 79 is fixedly connected to a support rod 95. When the movable top plate 3 compresses the spring, the fifth shaft 79 drives the support rod 95 to deflect and contact the support block 94. Therefore, when the movable top plate 3 compresses the spring, the double-sided extrusion plate 2 is always located in the middle of the two movable top plates 3 to reduce the test error.

[0027] Embodiment 2: Please refer to Figures 1-12 , the present invention provides a technical solution: Embodiment 2 is an optimization based on Embodiment 1; A plurality of positioning columns 96 are fixedly connected to the movable top plate 3 at equal intervals and uniformly, and a plurality of positioning columns 96 are also fixedly connected to the rectangular plate 47 at equal intervals and uniformly. A plurality of positioning columns 96 are also fixedly connected to both sides of the double-sided extrusion plate 2 at equal intervals and uniformly. The positioning columns 96 are used to install the test springs, improving the stability of the device during operation.

[0028] It should be noted that in this text, relational terms such as first and second are only used 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present 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), and is characterized in that, It further includes: A bi-directional extrusion plate (2), slidably arranged on the guide rod (12); Two movable top plates (3), symmetrically arranged on both sides of the bi-directional extrusion plate (2) and both slidably connected to the guide rod (12). The gap between the movable top plate (3) and the bi-directional extrusion plate (2) is used for installing the test spring; A pusher (4), arranged on the test bench (1) and connected to the two movable top plates (3), for driving the two movable top plates (3) to move relative to the bi-directional extrusion plate (2) to clamp the test spring and extrude the test spring to half of its preset compression value; A driving member (5), arranged on the test bench (1) and connected to the bi-directional extrusion plate (2), for driving the bi-directional extrusion plate (2) to reciprocate, and its moving stroke is the preset compression value of the spring, so as to alternately extrude the test springs on both sides thereof and at the same time alternately release the test springs on both sides thereof, so as to directly assist in driving the movement of the bi-directional extrusion plate (2) by using the test springs alternately released on both sides of the bi-directional extrusion plate (2); The driving member (5) includes a second shaft (49) fixedly connected to both sides of the bi-directional extrusion plate (2). A connecting rod (51) is rotatably connected to the second shaft (49). A hollow third shaft (52) is rotatably connected inside the test bench (1). An L-shaped plate (53) is arranged at the end of the hollow third shaft (52). One end of the L-shaped plate (53) is fixedly connected to a fourth shaft (54) rotatably connected to one end of the connecting rod (51); And a driving motor (55) connected to the hollow third shaft (52) is fixedly connected inside the test bench (1). Starting the driving motor (55) drives the bi-directional extrusion plate (2) to move; The driving motor (55) is a self-locking motor, and a stroke adjustment component (58) is arranged on the hollow third shaft (52) for adjusting the test stroke of the bi-directional extrusion plate (2) while the movable top plate (3) compresses the test spring.

2. The component deformation testing device according to claim 1, wherein: The pusher (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). Shafts one (43) are fixedly connected to the two output shafts of the dual-axis motor (42). A screw rod (44) with a thread passing through the movable top plate (3) is fixedly connected to the shaft one (43).

3. The component deformation testing device according to claim 2, wherein: The movable top plate (3) located on one side of the bi-directional 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). 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) compresses the test spring.

4. The component deformation testing device according to claim 3, wherein: A first gear disk (56) is fixedly connected to the hollow third shaft (52). A second gear disk (57) meshing with the first gear disk (56) is fixedly connected to the output shaft of the driving motor (55). Starting the driving motor (55) drives the hollow third shaft (52) to rotate.

5. The component deformation testing device according to claim 4, wherein: The mounting bracket (41) is slidably connected to the support plate (11). A locking member (59) is provided on the mounting bracket (41) for locking the mounting bracket (41) and the support plate (11), and the locking of the mounting bracket (41) is released when the movable top plate (3) compresses the test spring.

6. The component deformation testing device according to claim 5, wherein: The stroke adjustment assembly (58) includes an injection barrel one (61) conductively connected to the hollow shaft three (52). The injection barrel one (61) is filled with hydraulic oil. A piston one (62) is slidably connected in the injection barrel one (61). One end of the piston one (62) is fixedly connected to a push rod one (63) whose one end is fixed to the L-shaped plate (53). Hydraulic oil is filled into the injection barrel one (61) to drive the shaft four (54) away from the hollow shaft three (52). A hollow ring (64) is rotatably connected to the hollow shaft three (52). A plurality of through grooves (65) communicating with the hollow ring (64) are equidistantly and uniformly formed on the hollow shaft three (52). An injection barrel two (66) is fixedly connected to the mounting bracket (41). The injection barrel two (66) is also filled with hydraulic oil. A piston two (67) is slidably connected in the injection barrel two (66). One end of the piston two (67) is fixedly connected to a push rod two (68) whose one end is fixed to the movable top plate (3). One side of the injection barrel two (66) is conductively connected to a three-way pipe (69). One side of the three-way pipe (69) is conductively connected to an injection barrel three (71). The injection barrel three (71) is also filled with hydraulic oil. A piston three (72) is slidably connected in the injection barrel three (71). The three-way pipe (69) is conductively connected to the hollow ring (64) through a conduit. A valve member one (73) is provided in the three-way pipe (69) to conduct the injection barrel two (66) and the injection barrel three (71) to transfer hydraulic oil and block the injection barrel one (61) when the movable top plate (3) moves to contact the test spring, and then conduct the injection barrel two (66) and the injection barrel one (61) when the movable top plate (3) continues to move to compress the test spring, so as to drive the shaft four (54) to move, thereby adjusting the test stroke of the double-sided extrusion plate (2).

7. The deformability testing device for parts according to claim 6, characterized in that: The three-way pipe (69) includes a hollow cylinder one (74). Three branch pipes (75) are conductively connected to the hollow cylinder one (74). The three branch pipes (75) are respectively conductively connected to the injection barrel two (66), the injection barrel one (61), and the injection barrel three (71). The valve member one (73) includes a rotating column one (76) rotatably connected in the hollow cylinder one (74). A guide groove one (77) is formed in the rotating column one (76) for conducting the injection barrel two (66) and the injection barrel three (71). A guide groove two (78) perpendicular to and communicating with the guide groove one (77) is formed in the rotating column one (76). A shaft five (79) whose one end passes through the hollow cylinder one (74) is fixedly connected to the rotating column one (76) for rotating the shaft five (79) to drive the rotating column one (76) to rotate, so as to conduct the injection barrel two (66) and the injection barrel one (61). An electric push rod (81) electrically connected to a pressure sensor (48) is fixedly connected to the mounting bracket (41). The extending end of the electric push rod (81) is fixedly connected to a strip-shaped plate (82). One end of the fifth shaft (79) is fixedly connected to a deflection plate (83). A guiding groove (84) is formed at one end of the strip-shaped plate (82). One end of the deflection plate (83) is fixedly connected to a sixth shaft (85) that slidably passes through the guiding groove (84). Starting the electric push rod (81) drives the fifth shaft (79) to rotate.

8. The component deformation testing device according to claim 7, characterized in that: A hollow push rod three (86) is fixedly connected to the mounting bracket (41). Injection barrels four (87) fixedly connected to the support plate (11) are respectively arranged at both ends of the hollow push rod three (86). The injection barrels four (87) are filled with hydraulic oil. The end of the hollow push rod three (86) is located inside the injection barrel four (87) and is fixedly connected to a piston four (88). The piston four (88) is slidably connected to the inner wall of the injection barrel four (87). A valve member two (89) is arranged on the hollow push rod three (86) to block the hollow push rod three (86) and conduct the hollow push rod three (86) when the movable top plate (3) compresses the test spring.

9. The component deformation testing device according to claim 8, characterized in that: The valve member two (89) includes a hollow cylinder two (91) in conduction connection with the hollow push rod three (86). A rotating column two (92) is rotatably connected inside the hollow cylinder two (91). The fifth shaft (79) is fixedly connected to the rotating column two (92). A guiding groove three (93) is formed inside the rotating column two (92). A support block (94) is fixedly connected to the double-sided extrusion plate (2). One end of the fifth shaft (79) is fixedly connected to a support rod (95). When the movable top plate (3) compresses the spring, the fifth shaft (79) drives the support rod (95) to deflect and contact the support block (94).

10. The component deformation testing device according to claim 9, wherein: A plurality of positioning columns (96) are fixedly connected to one movable top plate (3) at equal intervals and evenly. A plurality of positioning columns (96) are also fixedly connected to the rectangular plate (47) at equal intervals and evenly. A plurality of positioning columns (96) are also fixedly connected to both sides of the double-sided extrusion plate (2) at equal intervals and evenly.

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