A multifunctional adjustable spring fatigue simulation test device

Abstract

The invention discloses a multifunctional adjustable spring fatigue simulation test device, comprising: a workbench, a slide, a horizontal moving mechanism connected to the slide through a spacing adjustment mechanism, a first plug-in assembled on the slide through a ball head component, an angle adjustment mechanism, a second plug-in, a slide rod slidably connected to the workbench through a mounting mechanism, a pulley, a cam and a driving mechanism, the cam comprising a turntable and a plurality of test pieces which are sequentially fitted and arranged along the circumferential direction of the turntable and can be detachably assembled on the turntable, the plurality of test pieces can be divided into a convex piece, a smooth piece and a transition piece transitioning between the convex piece and the smooth piece according to their functions, the side walls of the convex piece and the smooth piece away from the axis of the rotating shaft are arranged coaxially with the turntable, different numbers of convex pieces and smooth pieces can be assembled on the turntable according to actual test requirements, the transition piece is used to connect the convex piece and the smooth piece, different layouts can be performed on the plurality of test pieces to achieve different test effects, and the practicability is strong.

Description

Technical Field

[0001] The invention relates to the technical field related to spring testing, and in particular to a multifunctional adjustable spring fatigue simulation testing device. Background Art

[0002] Springs need to undergo various performance tests after manufacturing, one of the key ones being spring fatigue testing. Fatigue testing has the following functions: It can determine the fatigue durability of springs during actual use, providing a scientific basis for the design and production process; it can determine the fatigue life, fatigue limit and safety factor of springs, thereby optimizing the design and improving materials to ensure that the springs always maintain good performance during long-term use; fatigue testing can verify whether the design of the spring meets the expected life and load-bearing capacity, and reveal problems that may arise in long-term use of the spring, helping manufacturers improve product design and material selection; it can assess whether there is a risk of fracture or breakage under stress loading, thereby improving safety in use.

[0003] The patent document "A Spring Compression Durability Test Device" with Chinese application number CN202222561303.3 discloses a spring compression durability test device, in which the spring to be tested is arranged between the lifting plate and the top plate, a rotatable wheel is arranged at the bottom of the lifting plate, a cam and the wheel are against each other, and the cam is driven to rotate by a motor. Since the cam has a radial profile size change, during the rotation of the cam, the wheel can be reciprocated up and down, and the lifting plate is driven to move synchronously at the same time, so as to achieve repeated quantitative compression and restoration of the original length of the spring to be tested, and achieve the purpose of spring compression durability test. However, the above patent still has the following shortcomings. When testing the spring, because the shape of the outer contour of the cam is fixed and the top plate is fixed, the distance between the lifting plate and the top plate is always within a fixed range, and the spring under different compression degrees cannot be fatigue tested. The test conditions of the spring are single, so it is necessary to design a multifunctional adjustable spring fatigue simulation test device. Summary of the invention

[0004] In view of the above technical problems, the purpose of the present invention is to overcome the problem of single spring fatigue test conditions in the prior art.

[0005] In order to achieve the above-mentioned object, the present invention provides a multifunctional adjustable spring fatigue simulation test device, comprising: a workbench, a slide connected to the workbench horizontally in a sliding manner, a horizontal moving mechanism connected to the slide through a spacing adjustment mechanism and mounted on the workbench, a horizontal first plug-in mounted on a side of the slide away from the driving mechanism through a ball head component, an angle adjustment mechanism mounted on the slide for driving the first plug-in to rotate in a horizontal plane, a second plug-in corresponding to the first plug-in, a sliding rod fixedly connected to the second plug-in and slidably connected to the workbench along the sliding direction of the slide through a mounting mechanism, a pulley mounted on the end of the slide rod away from the second plug-in, a cam matched with the pulley, and a driving mechanism for driving the cam to rotate;

[0006] The cam includes a turntable connected to a driving mechanism and a plurality of test pieces which are arranged in sequence along the circumferential direction of the turntable and can be detachably assembled on the turntable. The plurality of test pieces can be divided into convex pieces, smooth pieces and transition pieces between the convex pieces and the smooth pieces according to their functions. The side walls of the convex pieces and the smooth pieces which are away from the axis of the rotating shaft are arranged coaxially with the turntable.

[0007] Preferably, the angle adjustment mechanism includes a vertical mounting plate fixedly connected to the first plug-in, a pair of first threaded rods symmetrically arranged in the horizontal direction about the ball head component, the pair of first threaded rods are hinged to the mounting plate through a vertical hinge axis, and the slide is penetrated by a pair of horizontal strip-shaped through grooves for the corresponding first threaded rods to pass through, and the first threaded rod is threadedly connected to a first hexagonal pressure plate that can abut against the side of the slide away from the first plug-in.

[0008] Preferably, the spacing adjustment mechanism comprises a vertical first clamping plate whose bottom edge is fixedly connected to the slide, a second clamping plate connected to the moving end of the horizontal moving mechanism and parallel to the first clamping plate, a plurality of second threaded rods whose length direction is consistent with the sliding direction of the slide and are all fixedly connected to the first clamping plate, and a plurality of pads arranged at intervals in sequence along the sliding direction of the slide;

[0009] The end of the second threaded rod away from the first clamping plate slides through the second clamping plate, and the second threaded rod is threadedly connected with a second hexagonal pressure plate that can abut against the side of the second clamping plate away from the first clamping plate. The bottom of the pad is provided with a plurality of notches that correspond one to one and are downwardly sleeved on the plurality of second threaded rods.

[0010] Preferably, at least one first convex block portion is protrudingly provided on one side of the cushion block and the second clamping plate close to the first clamping plate, and a first groove portion corresponding to the first convex block portion is recessedly provided on one side of the cushion block and the first clamping plate close to the second clamping plate.

[0011] Preferably, the horizontal moving mechanism includes a first driving push rod mounted on the workbench through a first mounting frame and fixedly connected to a second clamping plate, the workbench is equipped with at least one strip slide, and the second clamping plate and the slide are both fixedly connected with a slider slidably connected to the strip slide.

[0012] Preferably, the mounting mechanism includes a mounting seat fixedly mounted on the workbench, at least one guide rod parallel to the sliding rod and sliding through the mounting seat along its own length direction, and a connecting plate fixedly connected to the second plug-in and fixed to the guide rod, the sliding rod slides through the mounting seat, and a limiting piece is fixedly connected to the end of the guide rod away from the connecting plate.

[0013] Preferably, the cam also includes a limit plate which is detachably connected to the turntable by a plurality of mounting bolts and can be pressed onto a plurality of test pieces, and a plurality of second protrusion portions evenly distributed in the circumferential direction are protrudingly provided on the opposite sides of the turntable and the limit plate, and second groove portions matching the second protrusion portions are recessedly provided on both side walls of the test piece.

[0014] Preferably, the workbench is equipped with at least one group of auxiliary positioning mechanisms, which include a guide sleeve fixedly mounted on the workbench, a horizontal insertion arm whose length direction is perpendicular to the sliding direction of the slide and slides through the guide sleeve along its own length direction, a positioning sleeve fixedly mounted on the side of the second clamping plate away from the first clamping plate and for the insertion arm to be inserted, and a horizontal second driving push rod fixedly mounted on the workbench and with the moving end fixedly connected to the end of the insertion arm away from the positioning sleeve.

[0015] Preferably, the driving mechanism comprises a connecting shaft which is fixedly connected coaxially with the turntable and mounted on the workbench via a plurality of shaft seats, and a motor which is mounted on the workbench via a second mounting frame and connected to the connecting shaft.

[0016] Preferably, the ball head component comprises a ball head seat fixedly connected to an end of the first plug-in unit away from the second plug-in unit and a ball head rod slidably connected to the ball head seat and fixedly connected to the slide bracket.

[0017] According to the above technical solution, the present invention provides a multifunctional adjustable spring fatigue simulation test device, which has the following beneficial technical effects compared with the prior art:

[0018] First, different numbers of convex pieces and smooth pieces can be assembled on the turntable according to actual test requirements, and the transition pieces are used to connect the convex pieces and the smooth pieces. In addition, different layouts can be performed on several test pieces to achieve different test effects, which is highly practical.

[0019] Secondly, the distance between the slide and the output end of the horizontal moving mechanism can be adjusted through the distance adjustment mechanism, thereby changing the compression amount of the spring and performing the test under different test conditions;

[0020] Thirdly, the inclination angle of the first plug-in can be adjusted by the angle adjustment mechanism, so that the end of the tested spring is subjected to force in a different direction, so that the spring is bent, and the spring can be tested with different bending degrees.

[0021] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation mode; and the parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a three-dimensional structural schematic diagram of a multifunctional adjustable spring fatigue simulation test device provided by the present invention;

[0024] Figure 2 The invention provides a multifunctional adjustable spring fatigue simulation test device. Figure 1 The enlarged schematic diagram of point A in the middle;

[0025] Figure 3 The present invention provides a multifunctional adjustable spring fatigue simulation test device cam exploded schematic diagram Figure 1 ;

[0026] Figure 4 The present invention provides a multifunctional adjustable spring fatigue simulation test device cam exploded schematic diagram Figure 2 ;

[0027] Figure 5 This is a partial three-dimensional structure diagram of a multifunctional adjustable spring fatigue simulation test device provided by the present invention. Figure 1 ;

[0028] Figure 6 It is a three-dimensional structural schematic diagram of a spacing adjustment mechanism of a multifunctional adjustable spring fatigue simulation test device provided by the present invention;

[0029] Figure 7 The three-dimensional structure diagram of the pad of a multifunctional adjustable spring fatigue simulation test device provided by the present invention is Figure 1 ;

[0030] Figure 8 The three-dimensional structure diagram of the pad of a multifunctional adjustable spring fatigue simulation test device provided by the present invention is Figure 2 ;

[0031] Fig. 9This is a partial three-dimensional structure diagram of a multifunctional adjustable spring fatigue simulation test device provided by the present invention. Figure 2 .

[0032] Description of Reference Numerals

[0033] 1. Workbench; 2. Slide; 3. First plug-in; 4. Second plug-in; 5. Slide rod; 6. Pulley; 7. Turntable; 8. Bump piece; 9. Smooth piece; 10. Transition piece; 11. Mounting plate; 12. First threaded rod; 13. Articulated shaft; 14. Strip through groove; 15. First hexagonal pressure plate; 16. First clamping plate; 17. Second clamping plate; 18. Second threaded rod; 19. Pad; 20. Second hexagonal pressure plate; 21. Notch portion; 22, first protrusion portion; 23, first groove portion; 24, first driving push rod; 25, strip slide seat; 26, mounting seat; 27, guide rod; 28, connecting plate; 29, mounting bolt; 30, limit plate; 31, second protrusion portion; 32, second groove portion; 33, guide sleeve; 34, insert arm; 35, positioning sleeve; 36, second driving push rod; 37, motor; 38, ball head seat; 39, ball head rod. DETAILED DESCRIPTION

[0034] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0035] In the present invention, unless otherwise stated, directional words such as "upper, lower, inside, outside" contained in a term merely represent the orientation of the term in normal usage, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term.

[0036] like Figure 1-9 As shown, a multifunctional adjustable spring fatigue simulation test device comprises: a workbench 1, a slide 2 horizontally slidably connected to the workbench 1, a horizontal moving mechanism connected to the slide 2 through a spacing adjustment mechanism and mounted on the workbench 1, a horizontal first plug-in 3 mounted on a side of the slide 2 away from the driving mechanism through a ball head component, an angle adjustment mechanism mounted on the slide 2 for driving the first plug-in 3 to rotate in a horizontal plane, a second plug-in 4 corresponding to the first plug-in 3, a slide rod 5 fixedly connected to the second plug-in 4 and slidably connected to the workbench 1 along the sliding direction of the slide 2 through a mounting mechanism, a pulley 6 mounted on the end of the slide rod 5 away from the second plug-in 4, a cam matched with the pulley 6, and a driving mechanism for driving the cam to rotate;

[0037] The cam includes a turntable 7 connected to a driving mechanism and a plurality of test pieces which are sequentially arranged in a close fit along the circumferential direction of the turntable 7 and can be detachably assembled on the turntable 7. The plurality of test pieces can be divided into a convex piece 8, a smooth piece 9 and a transition piece 10 which transitions between the convex piece 8 and the smooth piece 9 according to their functions. The side walls of the convex piece 8 and the smooth piece 9 which are away from the axis of the rotating shaft are coaxially arranged with the turntable 7.

[0038] In the above technical solution, when the spring needs to be tested, the horizontal moving mechanism first drives the slide 2 to move away from the second plug-in 4 through the spacing adjustment mechanism, so that the spacing between the second plug-in 4 and the first plug-in 3 is increased to facilitate the installation of the spring. One end of the spring is sleeved on the second plug-in 4, and the horizontal moving mechanism drives the first plug-in 3 to move closer to the second plug-in 4, and the second plug-in 4 is inserted into the end of the spring. As the spacing between the first plug-in 3 and the second plug-in 4 decreases, the spring is compressed.

[0039] After the spring is assembled, the driving mechanism drives the cam to rotate. When the protruding piece 8 contacts the pulley 6, the cam will push the slide rod 5 to move closer to the first plug-in 3 through the pulley 6, thereby further compressing the spring; when the smooth piece 9 is facing the pulley 6, the spring will push the slide rod 5 to move closer to the cam, so that the pulley 6 contacts the smooth piece 9. As the cam rotates, the spring continuously switches between compression movement and extension movement, thereby performing fatigue testing on the spring.

[0040] According to actual test requirements, different numbers of protruding pieces 8 and smooth pieces 9 can be assembled on the turntable 7, and the transition piece 10 is used to connect the protruding pieces 8 and the smooth piece 9, and different layouts can be performed on several test pieces to achieve different test effects, which is highly practical. The spacing between the slide 2 and the output end of the horizontal moving mechanism can be adjusted by the spacing adjustment mechanism, thereby changing the compression amount of the spring and performing tests under different test conditions. The inclination angle of the first plug-in 3 can be adjusted by the angle adjustment mechanism, so that the end of the tested spring is subjected to force in the direction in which the spring is bent, and the spring can be tested with different degrees of bending. The test device can test the spring under different test conditions, which is highly practical.

[0041] In a preferred embodiment of the invention, the angle adjustment mechanism includes a vertical mounting plate 11 fixedly connected to the first plug-in 3, a pair of first threaded rods 12 arranged symmetrically about the ball head component in the horizontal direction, the pair of first threaded rods 12 are hinged to the mounting plate 11 through a vertical hinge shaft 13, and the slide 2 is penetrated by a pair of horizontal strip-shaped through grooves 14 for the corresponding first threaded rods 12 to pass through, and the first threaded rods 12 are threadedly connected to a first hexagonal pressure plate 15 that can abut against the side of the slide 2 away from the first plug-in 3.

[0042] In the above technical solution, when the inclination angle of the first plug-in 3 needs to be adjusted, the first hexagonal pressure plate 15 on one of the first threaded rods 12 is loosened, and then the first hexagonal pressure plate 15 on the other first threaded rod 12 is tightened, and the first plug-in 3 will rotate horizontally around the ball head component, the first plug-in 3 will drive the mounting plate 11 to tilt, and the first threaded rod 12 will move in the strip-shaped through groove 14. After the two first hexagonal pressure plates 15 are in contact with the slide 2, the inclination state of the first plug-in 3 is fixed.

[0043] In a preferred embodiment of the invention, the spacing adjustment mechanism includes a vertical first clamping plate 16 whose bottom edge is fixedly connected to the slide 2, a second clamping plate 17 connected to the moving end of the horizontal moving mechanism and parallel to the first clamping plate 16, a plurality of second threaded rods 18 whose length direction is consistent with the sliding direction of the slide 2 and are all fixedly connected to the first clamping plate 16, and a plurality of pads 19 arranged in sequence along the sliding direction of the slide 2.

[0044] The end of the second threaded rod 18 away from the first clamping plate 16 slides through the second clamping plate 17, and the second threaded rod 18 is threadedly connected with a second hexagonal pressure plate 20 that can abut against the side of the second clamping plate 17 away from the first clamping plate 16, and the bottom of the cushion block 19 is provided with a plurality of notch portions 21 that correspond one by one and are downwardly sleeved on a plurality of second threaded rods 18.

[0045] In the above technical solution, by loosening the second hexagonal pressure plate 20, the number of pads 19 between the first clamping plate 16 and the second clamping plate 17 can be increased or decreased, and then the second hexagonal pressure plate 20 can be tightened so that the first clamping plate 16 and the second clamping plate 17 can tightly clamp a plurality of pads 19. The number of pads 19 is used to adjust the distance between the first clamping plate 16 and the second clamping plate 17, which has strong stability and strong pressure resistance.

[0046] In a preferred embodiment of the invention, at least one first protrusion portion 22 is protrudingly provided on the side of the cushion block 19 and the second clamp plate 17 close to the first clamp plate 16, and a first groove portion 23 corresponding to the first protrusion portion 22 is recessedly provided on the side of the cushion block 19 and the first clamp plate 16 close to the second clamp plate 17.

[0047] In the above technical solution, after the first clamping plate 16 and the second clamping plate 17 clamp a plurality of pads 19, the first protrusion portions 22 on the pads 19 and the second clamping plates 17 will be inserted into the corresponding first groove portions 23, so that the pads 19 will not be squeezed upward and slipped after being pressed on both sides, thereby improving safety and stability.

[0048] In a preferred embodiment of the invention, the horizontal moving mechanism includes a first driving push rod 24 which is assembled on the workbench 1 through a first mounting frame and fixedly connected to the second clamping plate 17, the workbench 1 is equipped with at least one strip slide 25, and the second clamping plate 17 and the slide 2 are both fixedly connected with a slider which is slidably connected to the strip slide 25.

[0049] In a preferred embodiment of the invention, the mounting mechanism includes a mounting seat 26 fixedly assembled on the workbench 1, at least one guide rod 27 parallel to the slide rod 5 and sliding through the mounting seat 26 along its own length direction, and a connecting plate 28 fixedly connected to the second plug-in 4 and fixed to the guide rod 27, the slide rod 5 slides through the mounting seat 26, and the guide rod 27 is fixedly connected to a limiting member on the end away from the connecting plate 28.

[0050] In the above technical solution, when testing, the guide rod 27 and the slide rod 5 will slide on the mounting seat 26, and the limiting member plays a limiting role to prevent the guide rod 27 from slipping.

[0051] In a preferred embodiment of the invention, the cam also includes a limit plate 30 which is detachably connected to the turntable 7 by a plurality of mounting bolts 29 and can be pressed on a plurality of test pieces, and a plurality of second protrusion portions 31 uniformly distributed along the circumferential direction are protruded on opposite sides of the turntable 7 and the limit plate 30, and second groove portions 32 matching the second protrusion portions 31 are recessed on both side walls of the test piece.

[0052] In the above technical solution, when selecting different types of test pieces or typeset the test pieces, the test pieces need to be reinstalled, and the corresponding second groove portion 32 on the test piece is mounted on the corresponding second protrusion portion 31 of the turntable 7. After several test pieces are installed on the turntable 7, several second protrusion portions 31 on the limit plate 30 are inserted into the corresponding second groove portions 32, and then the limit plate and the turntable 7 are fixed by installing bolts 29. The turntable 7 and the limit plate 30 will be tightly clamped from both sides of the test piece, and several test blocks are fixed together with the turntable 7 and the limit plate 30.

[0053] In a preferred embodiment of the invention, at least one group of auxiliary positioning mechanisms is installed on the workbench 1, and the auxiliary positioning mechanism includes a guide sleeve 33 fixedly installed on the workbench 1, a horizontal insertion arm 34 whose length direction is perpendicular to the sliding direction of the slide 2 and slides through the guide sleeve 33 along its own length direction, a positioning sleeve 35 fixedly installed on the side of the second clamping plate 17 away from the first clamping plate 16 and for the insertion arm 34 to be inserted, and a horizontal second driving push rod 36 fixedly installed on the workbench 1 and the moving end is fixedly connected to the end of the insertion arm 34 away from the positioning sleeve 35.

[0054] In the above technical solution, the horizontal moving mechanism drives the second clamping plate 17 to move close to the cam, and the two ends of the spring are respectively mounted on the first plug-in 3 and the second plug-in 4. During the test, the spring will continuously exert a force on the first plug-in 3 and the second plug-in 4, so that the second clamping plate 17 is subjected to a force in the moving direction close to the horizontal moving mechanism. After the second driving push rod 36 drives the insertion arm 34 to be inserted into the positioning sleeve 35, the force exerted on the horizontal moving mechanism can be shared, thereby improving the service life of the horizontal moving mechanism and the stability of the testing equipment.

[0055] In a preferred embodiment of the invention, the driving mechanism includes a connecting shaft coaxially fixedly connected to the turntable 7 and assembled on the workbench 1 through a plurality of shaft seats, and a motor 37 assembled on the workbench 1 through a second mounting frame and connected to the connecting shaft.

[0056] In the above technical solution, the motor 37 is started to drive the connecting shaft to rotate, and the connecting shaft drives the cam to rotate.

[0057] In a preferred embodiment of the invention, the ball head component includes a ball head seat 38 fixedly connected to the end of the first plug-in 3 away from the second plug-in 4 and a ball head rod 39 slidably connected to the ball head seat 38 and fixedly connected to the slide 2.

[0058] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0059] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0060] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A multifunctional adjustable spring fatigue simulation test device, characterized in that: include: A workbench (1), a slide (2) connected to the workbench (1) in a horizontal sliding manner, a horizontal movement mechanism connected to the slide (2) through a spacing adjustment mechanism and mounted on the workbench (1), a horizontal first plug-in (3) mounted on a side of the slide (2) away from a driving mechanism through a ball head component, an angle adjustment mechanism mounted on the slide (2) for driving the first plug-in (3) to rotate in a horizontal plane, a second plug-in (4) corresponding to the first plug-in (3), a slide rod (5) fixedly connected to the second plug-in (4) and connected to the workbench (1) in a sliding direction of the slide (2) through a mounting mechanism, a pulley (6) mounted on an end of the slide rod (5) away from the second plug-in (4), a cam matched with the pulley (6), and a driving mechanism for rotating with the cam; The cam comprises a rotating disk (7) connected to a driving mechanism and a plurality of test pieces which are sequentially arranged in close contact with each other along the circumferential direction of the rotating disk (7) and can be detachably assembled on the rotating disk (7). The plurality of test pieces can be divided into a convex piece (8), a smooth piece (9) and a transition piece (10) which transitions between the convex piece (8) and the smooth piece (9) according to their functions. The side walls of the convex piece (8) and the smooth piece (9) which are away from the axis of the rotating shaft are both arranged coaxially with the rotating disk (7).

2. A multifunctional adjustable spring fatigue simulation test device according to claim 1, characterized in that: The angle adjustment mechanism comprises a vertical mounting plate (11) fixedly connected to the first plug-in unit (3), a pair of first threaded rods (12) arranged in a symmetrical state with respect to the ball head member in the horizontal direction, the pair of first threaded rods (12) being hinged to the mounting plate (11) via a vertical hinge shaft (13), a pair of horizontal strip-shaped through grooves (14) respectively passing through the corresponding first threaded rods (12) being arranged on the slide (2), and a first hexagonal pressure plate (15) being threadedly connected to the first threaded rod (12) and capable of abutting against a side of the slide (2) away from the first plug-in unit (3).

3. The multifunctional adjustable spring fatigue simulation test device according to claim 1, characterized in that: The spacing adjustment mechanism comprises a vertical first clamping plate (16) whose bottom edge is fixedly connected to the slide (2), a second clamping plate (17) connected to the moving end of the horizontal moving mechanism and parallel to the first clamping plate (16), a plurality of second threaded rods (18) whose length direction is consistent with the sliding direction of the slide (2) and are all fixedly connected to the first clamping plate (16), and a plurality of pads (19) arranged at intervals in sequence along the sliding direction of the slide (2); The end of the second threaded rod (18) away from the first clamping plate (16) slides through the second clamping plate (17), and the second threaded rod (18) is threadedly connected with a second hexagonal pressure plate (20) that can abut against the side of the second clamping plate (17) away from the first clamping plate (16), and the bottom of the cushion block (19) is provided with a plurality of notches (21) that correspond one by one and are downwardly sleeved on the plurality of second threaded rods (18).

4. The multifunctional adjustable spring fatigue simulation test device according to claim 3, characterized in that: The pad (19) and the second clamping plate (17) are both provided with at least one first convex block portion (22) on one side close to the first clamping plate (16), and the pad (19) and the first clamping plate (16) are both provided with a first concave groove portion (23) corresponding to the first convex block portion (22) on one side close to the second clamping plate (17).

5. The multifunctional adjustable spring fatigue simulation test device according to claim 3, characterized in that: The horizontal moving mechanism comprises a first driving push rod (24) which is mounted on the workbench (1) via a first mounting frame and fixedly connected to a second clamping plate (17); at least one strip slide seat (25) is mounted on the workbench (1); and a sliding block which is slidably connected to the strip slide seat (25) is fixedly connected to both the second clamping plate (17) and the slide frame (2).

6. The multifunctional adjustable spring fatigue simulation test device according to claim 1, characterized in that: The mounting mechanism comprises a mounting seat (26) fixedly mounted on the workbench (1), at least one guide rod (27) parallel to the slide rod (5) and sliding through the mounting seat (26) along its own length direction, and a connecting plate (28) fixedly connected to the second plug-in (4) and fixed to the guide rod (27), the slide rod (5) sliding through the mounting seat (26), and a limiting member fixedly connected to the end of the guide rod (27) away from the connecting plate (28).

7. The multifunctional adjustable spring fatigue simulation test device according to claim 1, characterized in that: The cam also includes a limit plate (30) which is detachably connected to the rotating disk (7) through a plurality of mounting bolts (29) and can be pressed on a plurality of test pieces. A plurality of second convex block portions (31) uniformly distributed along the circumferential direction are protruded on opposite sides of the rotating disk (7) and the limit plate (30), and second groove portions (32) matching the second convex block portions (31) are recessed on both side walls of the test piece.

8. The multifunctional adjustable spring fatigue simulation test device according to claim 3, characterized in that: The workbench (1) is equipped with at least one set of auxiliary positioning mechanisms, which include a guide sleeve (33) fixedly mounted on the workbench (1), a horizontal insertion arm (34) whose length direction is perpendicular to the sliding direction of the slide (2) and slides through the guide sleeve (33) along its own length direction, a positioning sleeve (35) fixedly mounted on the side of the second clamping plate (17) away from the first clamping plate (16) and for the insertion arm (34) to be inserted, and a horizontal second driving push rod (36) fixedly mounted on the workbench (1) and whose movable end is fixedly connected to the end of the insertion arm (34) away from the positioning sleeve (35).

9. The multifunctional adjustable spring fatigue simulation test device according to claim 1, characterized in that: The driving mechanism comprises a connecting shaft fixedly connected coaxially with the rotating disk (7) and mounted on the workbench (1) via a plurality of shaft seats, and a motor (37) mounted on the workbench (1) via a second mounting frame and connected to the connecting shaft.

10. The multifunctional adjustable spring fatigue simulation test device according to claim 1, characterized in that: The ball head component comprises a ball head seat (38) fixedly connected to one end of the first plug-in unit (3) away from the second plug-in unit (4) and a ball head rod (39) slidably connected to the ball head seat (38) and fixedly connected to the slide frame (2).

Images