Spring force curve testing machine

Abstract

The utility model discloses a spring force curve testing machine which comprises a working table, a supporting shell is fixedly connected to the upper surface of the working table, a connecting shell is fixedly connected to the upper surface of the supporting shell, a threaded rod is rotationally connected into the supporting shell, a driving mechanism is arranged in the connecting shell, and a movable sleeve is connected to the threaded rod in a threaded and sleeved mode. The side face of the moving sleeve is fixedly connected with a moving rod, the moving rod is fixedly connected with a moving plate, the supporting shell is provided with a moving groove, the lower surface of the moving plate is fixedly connected with a connecting plate through a connecting rod, and a pressing ring is arranged below the connecting plate. A pressure sensor is fixedly connected to the lower surface in the placement groove, a placement plate is placed in the placement groove, a fixing rod is fixedly connected to the upper surface of the placement plate, and a detection spring is sleeved on the fixing rod.

Description

Technical Field

[0001] The utility model relates to the technical field of spring testing, in particular to a spring force curve testing machine. Background Technique

[0002] A spring testing machine is a special instrument for testing springs. After the springs are produced, they must undergo strict tests before being put into use, because most springs are the main components used in machinery and vehicles. For example, the springs on a vehicle. If the springs installed on the vehicle have not been strictly tested and are randomly installed on the vehicle for use, and their performance does not meet the requirements, it is easy to cause very serious consequences; another example is the springs used for shock absorption. Due to the decline in performance, the vehicle loses balance and is prone to traffic accidents. From this, it can be summarized that the main function of the spring testing machine is to conduct strength tests and analyses on the tensile force, pressure, displacement, stiffness, etc. of precision springs such as extension springs, compression springs, disc springs, cone springs, leaf springs, snap rings, flat springs, composite springs, gas springs, die springs, and special-shaped springs. When conducting resilience tests on springs, it is inconvenient to test springs with different diameters, resulting in low practicability and poor use effects.

[0003] Therefore, it is very necessary to design a spring force curve testing machine with strong practicability. Content of the Utility Model

[0004] The purpose of the utility model is to provide a spring force curve testing machine to solve the problems raised in the above background technique.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a spring force curve testing machine, including a workbench, wherein the left and right positions of the upper surface of the workbench are fixedly connected to a support shell, the upper surfaces of the two support shells are commonly fixedly connected to a connecting shell, the inner lower surfaces of the two support shells are rotatably connected to a threaded rod through a first bearing, the threaded rod extends into the connecting shell through a second bearing and is rotatably connected to the inner upper surface of the connecting shell through a third bearing, a driving mechanism for driving the two threaded rods to rotate is provided in the connecting shell, a moving sleeve is threadedly sleeved on the two threaded rods, one side of the two moving sleeves is fixedly connected to a moving rod, one end of the two moving rods extends out of the support shell and is commonly fixedly connected to a moving plate, the support The shell body is provided with a moving groove for the moving rod to move, the lower surface of the moving plate is fixedly connected to a connecting plate through a connecting rod, a pressure ring is provided below the connecting plate, the outer surface of the pressure ring is fixedly connected to a fixed plate, the left and right positions on the upper surface of the fixed plate are fixedly connected to plug-in plates, the lower surface of the connecting plate is provided with a plug-in groove for the plug-in plate to be plugged in, and the connecting plate is provided with a fixing mechanism for fixing the plug-in plate, the upper surface of the workbench is fixedly connected to a placing table, the upper surface of the placing table is provided with a placing groove, the inner lower surface of the placing groove is fixedly connected to a pressure sensor, a placing plate is placed in the placing groove, the upper surface of the placing plate is fixedly connected to a fixing rod, a detection spring is sleeved on the fixing rod, and a controller is fixedly connected to the right position on the upper surface of the workbench.

[0006] According to the above technical solution, the driving mechanism includes a driving motor, which is fixedly connected at the left position of the lower surface of the connecting shell, the output end of the driving motor is fixedly connected to one end of the driving shaft, the other end of the driving shaft is fixedly connected to the first gear, the left threaded rod is fixedly sleeved with a second gear meshing with the first gear, the two threaded rods are fixedly sleeved with transmission wheels, and the two transmission wheels are connected by a transmission chain.

[0007] According to the above technical solution, the fixing mechanism includes a cavity, which is arranged in a connecting plate, and a sliding plate is slidably arranged in the cavity. One end of a plurality of pull rods is fixedly connected to one side of the sliding plate, and the other end of the pull rod extends out of the connecting plate and is fixedly connected to the pull plate. A connecting spring is sleeved on the pull rod, and one end of the connecting spring is fixedly connected to the sliding plate, and the other end of the connecting spring is fixedly connected to the inner wall of the cavity. A plurality of limit rods are fixedly connected to the other side of the sliding plate, and one end of the limit rod extends into the plug-in slot, and a limit hole for the limit rod to be plugged in is provided on the plug-in plate.

[0008] According to the above technical solution, an opening is provided on the connecting plate.

[0009] According to the above technical solution, limit blocks are fixedly connected to both the left and right side surfaces of the placement plate, and limit grooves for the limit blocks to slide are provided on the inner wall of the placement groove.

[0010] According to the above technical solution, the pressure ring can be slidably connected to the outer surface of the fixed rod.

[0011] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: through the cooperation among the support housing, the connection housing, the first bearing, the threaded rod, the second bearing, the third bearing, the driving mechanism, the moving sleeve, the moving rod, the moving plate and the moving groove, the up and down movement of the moving plate can be realized, and then the pressure ring can be driven to move, so as to press the detection spring on the fixed rod, and through the cooperation with the pressure sensor, the resilience of the detection spring can be tested. Through the settings of the placement table, the placement groove, the placement plate and the fixed rod, it is convenient to replace the fixed rod with a corresponding diameter size according to the detection spring with different diameter sizes, and it is convenient for the detection spring to be sleeved on the fixed rod. Through the cooperation of the connecting plate, the pressure ring, the fixing plate, the inserting plate, the inserting groove and the fixing mechanism, it is convenient to replace the corresponding pressure ring according to the fixed rod with different diameter sizes, so as to facilitate the test detection. The present utility model is convenient for testing springs with different diameter sizes, has strong practicability and good use effect. Description of the Drawings

[0012] The drawings are used to provide further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0013] Figure 1 is the three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 2 is the partial structural schematic diagram of the present utility model;

[0015] Figure 3 is the front view cross-sectional structural schematic diagram of the present utility model;

[0016] Figure 4 is Figure 3 the enlarged structural schematic diagram of part A in

[0017] Figure 5 is Figure 3 the enlarged structural schematic diagram of part B in

[0018] Figure 6 is the top view cross-sectional structural schematic diagram of the connecting plate of the present utility model;

[0019] In the figure: 1 - workbench, 2 - support housing, 3 - connecting housing, 4 - first bearing, 5 - threaded rod, 6 - second bearing, 7 - third bearing, 8 - moving sleeve, 9 - moving rod, 10 - moving plate, 11 - moving groove, 12 - connecting rod, 13 - connecting plate, 14 - pressing ring, 15 - fixing plate, 16 - plugging plate, 17 - plugging groove, 18 - placing table, 19 - placing groove, 20 - pressure sensor, 21 - placing plate, 22 - fixing rod, 23 - detecting spring, 24 - controller, 25 - driving motor, 26 - driving shaft, 27 - first gear, 28 - second gear, 29 - driving wheel, 30 - driving chain, 31 - cavity, 32 - sliding plate, 33 - pull rod, 34 - pulling plate, 35 - connecting spring, 36 - limiting rod, 37 - limiting hole, 38 - opening, 39 - limiting block, 40 - limiting groove. Detailed implementation manner

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-6, the present utility model provides a technical solution: a spring force curve testing machine, including a workbench 1. At the left and right positions on the upper surface of the workbench 1, support shells 2 are fixedly connected. The upper surfaces of the two support shells 2 are jointly fixedly connected with a connecting shell 3. The lower inner surfaces of the two support shells 2 are rotatably connected with threaded rods 5 through first bearings 4. The threaded rods 5 extend into the connecting shell 3 through second bearings 6 and are rotatably connected to the upper inner surface of the connecting shell 3 through third bearings 7. A driving mechanism for driving the two threaded rods 5 to rotate is provided in the connecting shell 3. Threaded sleeves 8 are sleeved on the two threaded rods 5. One side surface of each of the two threaded sleeves 8 is fixedly connected with a moving rod 9. One ends of the two moving rods 9 extend out of the support shells 2 and are jointly fixedly connected with a moving plate 10. Moving grooves 11 for the moving rods 9 to move are provided on the support shells 2. Through the cooperation among the support shells 2, the connecting shell 3, the first bearings 4, the threaded rods 5, the second bearings 6, the third bearings 7, the driving mechanism, the threaded sleeves 8, the moving rods 9, the moving plate 10 and the moving grooves 11, the up and down movement of the moving plate 10 can be realized, and then the pressing ring 14 can be driven to move, and then the test spring 23 on the fixed rod 22 can be pressed. Through the cooperation with the pressure sensor 20, the resilience of the test spring 23 can be tested. A connecting plate 13 is fixedly connected to the lower surface of the moving plate 10 through a connecting rod 12. A pressing ring 14 is provided below the connecting plate 13. A fixing plate 15 is fixedly connected to the outer surface of the pressing ring 14. Plugging plates 16 are fixedly connected to the left and right positions on the upper surface of the fixing plate 15. Plugging grooves 17 for the plugging plates 16 to be plugged into are provided on the lower surface of the connecting plate 13. A fixing mechanism for fixing the plugging plates 16 is provided on the connecting plate 13. Through the cooperation among the connecting plate 13, the pressing ring 14, the fixing plate 15, the plugging plates 16, the plugging grooves 17 and the fixing mechanism, it is convenient to replace the corresponding pressing ring 14 according to the fixed rods 22 with different diameter sizes, so as to facilitate the test detection. A placing table 18 is fixedly connected to the upper surface of the workbench 1. A placing groove 19 is provided on the upper surface of the placing table 18. A pressure sensor 20 is fixedly connected to the lower inner surface of the placing groove 19. A placing plate 21 is placed in the placing groove 19. A fixed rod 22 is fixedly connected to the upper surface of the placing plate 21. A test spring 23 is sleeved on the fixed rod 22. Through the settings of the placing table 18, the placing groove 19, the placing plate 21 and the fixed rod 22, it is convenient to replace the fixed rods 22 with corresponding diameter sizes according to the test springs 23 with different diameter sizes, and it is convenient for the test spring 23 to be sleeved on the fixed rod 22. A controller 24 is fixedly connected to the right position on the upper surface of the workbench 1. Through the setting of the controller 24, the device can be controlled, and at the same time, the test data of the test spring 23 can be displayed in a curve. The present utility model is convenient for testing springs with different diameter sizes, has strong practicability and good use effect;

[0022] The driving mechanism includes a driving motor 25, which is fixedly connected to the left position of the lower surface of the connecting shell 3. The output end of the driving motor 25 is fixedly connected to one end of the driving shaft 26, and the other end of the driving shaft 26 is fixedly connected to the first gear 27. The left threaded rod 5 is fixedly sleeved with a second gear 28 meshing with the first gear 27. The two threaded rods 5 are fixedly sleeved with a transmission wheel 29, and the two transmission wheels 29 are connected by a transmission chain 30. The driving motor 25 can be started by setting the driving mechanism. The output end of the driving motor 25 drives the first gear 27 to rotate through the driving shaft 26. The first gear 27 is meshed with the second gear 28 on the left threaded rod 5, so that the left threaded rod 5 can be rotated. The left threaded rod 5 can rotate the right threaded rod 5 through the cooperation of the transmission wheel 29 and the transmission chain 30, thereby realizing the rotation of the two threaded rods 5.

[0023] The fixing mechanism includes a cavity 31, which is arranged in the connecting plate 13, a sliding plate 32 is slidably arranged in the cavity 31, one side of the sliding plate 32 is fixedly connected to one end of a plurality of pull rods 33, the other end of the pull rod 33 extends out of the connecting plate 13 and is fixedly connected to a pull plate 34, a connecting spring 35 is sleeved on the pull rod 33, one end of the connecting spring 35 is fixedly connected to the sliding plate 32, the other end of the connecting spring 35 is fixedly connected to the inner wall of the cavity 31, and the other side of the sliding plate 32 is fixedly connected to a plurality of limit rods 36, one end of the limit rod 36 extends into the plug-in slot 17, and the plug-in plate 16 is provided with a limit hole 37 for the limit rod 36 to be plugged in. Through the setting of the fixing mechanism, the pull plate 34 can be pulled when the pressure ring 14 is disassembled, and the pull plate 34 drives the sliding plate 32 to move in the cavity 31 through the pull rod 33. At this time, the connecting spring 35 contracts and produces elastic deformation. The movement of the sliding plate 32 can make the limit rod 36 disengage from the limit hole 37 on the plug-in plate 16, and then the plug-in plate 16 can be disengaged from the plug-in slot 17, so that the pressure ring 14 can be easily disassembled and replaced;

[0024] The connecting plate 13 is provided with an opening 38;

[0025] The left and right sides of the placement plate 21 are fixedly connected to the limiting blocks 39, and the inner wall of the placement groove 19 is provided with limiting grooves 40 for the limiting blocks 39 to slide. The setting of the limiting blocks 39 and the limiting grooves 40 facilitates the placement plate 21 to be placed in the placement groove 19;

[0026] The pressure ring 14 can be slidably connected to the outer surface of the fixing rod 22 .

[0027] Working principle: When the utility model is in use, the drive motor 25 in the drive mechanism can be started. The output end of the drive motor 25 drives the first gear 27 to rotate through the drive shaft 26. The first gear 27 is meshed and connected with the second gear 28 on the left threaded rod 5, so that the left threaded rod 5 can rotate. The left threaded rod 5 can drive the right threaded rod 5 to rotate through the cooperation of the transmission wheel 29 and the transmission chain 30, so as to realize the rotation of the two threaded rods 5. The rotation of the two threaded rods 5 can make the moving sleeve 8 drive the moving plate 10 to move through the moving rod 9, and then drive the pressing ring 14 to move, and then press the detection spring 23 on the fixed rod 22. Through the cooperation with the pressure sensor 20, the resilience of the detection spring 23 can be tested, and the test data can be displayed in a curve through the controller 24. Through the settings of the placement table 18, the placement groove 19, the placement plate 21 and the fixed rod 22, it is convenient to replace the fixed rod 22 with a corresponding diameter size according to the detection spring 23 with different diameter sizes, and it is convenient for the detection spring 23 to be sleeved on the fixed rod 22. Through the cooperation of the connecting plate 13, the pressing ring 14, the fixing plate 15, the plugging plate 16, the plugging groove 17 and the fixing mechanism, when disassembling the pressing ring 14, the pull plate 34 in the fixing mechanism can be pulled. The pull plate 34 drives the sliding plate 32 to move in the cavity 31 through the pull rod 33. At this time, the connecting spring 35 contracts and generates elastic deformation. The movement of the sliding plate 32 can make the limiting rod 36 disengage from the limiting hole 37 on the plugging plate 16, and then the plugging plate 16 can disengage from the plugging groove 17, so as to conveniently replace the corresponding pressing ring 14 according to the fixed rod 22 with different diameter sizes, so as to facilitate the test detection. The utility model is convenient for testing springs with different diameter sizes, has strong practicability and good use effect.

[0028] It should be noted that in this article, 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] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A spring force curve testing machine, comprising a workbench (1), characterized in that: The left and right positions of the upper surface of the workbench (1) are fixedly connected to a support shell (2); the upper surfaces of the two support shells (2) are commonly fixedly connected to a connecting shell (3); the inner lower surfaces of the two support shells (2) are rotatably connected to a threaded rod (5) via a first bearing (4); the threaded rod (5) extends into the connecting shell (3) via a second bearing (6) and is rotatably connected to the inner upper surface of the connecting shell (3) via a third bearing (7); a driving mechanism for driving the two threaded rods (5) to rotate is provided in the connecting shell (3); a moving sleeve (8) is threadedly sleeved on the two threaded rods (5); one side of the two moving sleeves (8) is fixedly connected to a moving rod (9); one end of the two moving rods (9) extends out of the support shell (2) and is commonly fixedly connected to a moving plate (10); a moving groove (11) for the moving rod (9) to move is provided on the support shell (2); the lower surface of the moving plate (10) is fixedly sleeved on the connecting shell (3) via a connecting rod (12); A connecting plate (13) is fixedly connected, a pressure ring (14) is provided below the connecting plate (13), a fixing plate (15) is fixedly connected to the outer surface of the pressure ring (14), plug-in plates (16) are fixedly connected at left and right positions on the upper surface of the fixing plate (15), a plug-in slot (17) for plugging the plug-in plate (16) is provided on the lower surface of the connecting plate (13), a fixing mechanism for fixing the plug-in plate (16) is provided on the connecting plate (13), and the upper surface of the working table (1) is fixedly connected to the connecting plate (13). A placing table (18) is fixedly connected to the surface, a placing groove (19) is provided on the upper surface of the placing table (18), a pressure sensor (20) is fixedly connected to the inner lower surface of the placing groove (19), a placing plate (21) is placed in the placing groove (19), a fixing rod (22) is fixedly connected to the upper surface of the placing plate (21), a detection spring (23) is sleeved on the fixing rod (22), and a controller (24) is fixedly connected to the right side of the upper surface of the workbench (1).

2. A spring force curve testing machine according to claim 1, characterized in that: The driving mechanism comprises a driving motor (25), the driving motor (25) being fixedly connected at a left position of the inner lower surface of the connecting shell (3), the output end of the driving motor (25) being fixedly connected to one end of a driving shaft (26), the other end of the driving shaft (26) being fixedly connected to a first gear (27), a second gear (28) meshingly connected to the first gear (27) being fixedly sleeved on the left threaded rod (5), a transmission wheel (29) being fixedly sleeved on both of the two threaded rods (5), and the two transmission wheels (29) being transmission-connected via a transmission chain (30).

3. A spring force curve testing machine according to claim 1, characterized in that: The fixing mechanism comprises a cavity (31), wherein the cavity (31) is arranged in a connecting plate (13), a sliding plate (32) is slidably arranged in the cavity (31), one side of the sliding plate (32) is fixedly connected to one end of a plurality of pull rods (33), the other end of the pull rod (33) extends out of the connecting plate (13) and is fixedly connected to a pull plate (34), a connecting spring (35) is sleeved on the pull rod (33), one end of the connecting spring (35) is fixedly connected to the sliding plate (32), the other end of the connecting spring (35) is fixedly connected to the inner wall of the cavity (31), the other side of the sliding plate (32) is fixedly connected to a plurality of limit rods (36), one end of the limit rod (36) extends into the plug-in slot (17), and the plug-in plate (16) is provided with a limit hole (37) for the limit rod (36) to be plugged in.

4. A spring force curve testing machine according to claim 1, characterized in that: The connecting plate (13) is provided with an opening (38).

5. A spring force curve testing machine according to claim 1, characterized in that: The left and right side surfaces of the placement plate (21) are both fixedly connected to limit blocks (39), and the inner wall of the placement groove (19) is provided with a limit groove (40) for the limit block (39) to slide.

6. A spring force curve testing machine according to claim 1, characterized in that: The pressure ring (14) can be slidably connected to the outer surface of the fixing rod (22).

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