A spring force testing tool for a spring

Abstract

The utility model discloses a spring piece's elasticity test frock relates to elasticity test technical field, including frock support, elasticity test piece and positioning piece, and elasticity test piece is set up in frock support inside and can along vertical direction and lift, and positioning piece sets up in frock support bottom, and the positioning of spring piece below elasticity test piece is carried out, the utility model discloses through positioning piece to the positioning of elastic sheet, then cooperate elasticity test piece and move in frock support inside vertical, exert pressure to the elastic sheet of positioning, can test out whether the elasticity of spring piece satisfies use demand, simple and convenient operation, and the test precision is high, makes the elasticity test work of spring piece more convenient and efficient.

Description

Technical Field

[0001] This utility model relates to the field of elasticity testing technology, and in particular to an elasticity testing fixture for a spring sheet. Background Technology

[0002] Springs of the same specifications can have different elastic forces due to differences in the materials used in their manufacture. This makes it difficult to select the right type of spring, and in some usage environments, it is hard to determine which material provides the appropriate elastic force. Currently, spring force testing is mainly done manually by observing the springs as they are moved, which requires a high level of skill from the user. Furthermore, the accuracy of the elastic force test is affected by the skill level of the person conducting the test, leading to unstable results and potential for significant errors. To address this issue, we propose a spring force testing fixture. Utility Model Content

[0003] The purpose of this invention is to provide a spring force testing fixture to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a spring force testing fixture, comprising:

[0005] Tooling brackets;

[0006] An elastic force test piece, wherein the elastic force test piece is movably disposed inside the tooling bracket and can be raised and lowered in the vertical direction;

[0007] A positioning element is provided at the bottom of the tooling bracket to position the spring sheet below the elastic force test piece.

[0008] Preferably, the tooling bracket includes:

[0009] A base plate, with a top plate located above the base plate;

[0010] Two columns are vertically and fixedly connected at two ends between the base plate and the top plate.

[0011] Preferably, the elasticity test piece includes:

[0012] A movable plate, which is movably disposed between the base plate and the top plate and can move along the axial direction of the column;

[0013] A lever dial indicator is fixedly connected to the middle of the top of the movable plate, and the measuring end of the lever dial indicator is provided with a measuring rod extending to the bottom of the movable plate.

[0014] Preferably, the elasticity test piece further includes:

[0015] A pressure rod is movably inserted into the middle of the top of the top plate. The bottom end of the pressure rod passes through the top plate and is fixedly connected to a connecting block. The bottom end of the connecting block is fixed to the top of the movable plate. The movable plate is located inside the connecting block.

[0016] The elastic tension springs are two springs located on both sides of the connecting block, and the two springs are fixedly connected to the opposite side of the movable plate and the top plate, respectively.

[0017] Preferably, the outer wall of the pressure rod is provided with external threads, and the outer wall of the pressure rod is connected to a limit nut through the external threads, the limit nut being located above the top plate.

[0018] Preferably, the positioning element includes:

[0019] Two sets of fixing plates are arranged at a front-to-back interval, and each set of fixing plates consists of two plates arranged at a horizontal interval.

[0020] Two sets of cylindrical rollers are movably disposed inside two sets of fixed plates, and each set of cylindrical rollers consists of two rollers spaced vertically apart.

[0021] Preferably, a roller shaft is inserted into the middle of the cylindrical roller, and a ball bearing is fixed between the roller shaft and the cylindrical roller. Both ends of the roller shaft are fixedly inserted into the side wall of the fixed plate. The top of the fixed plate is provided with a guide cavity, and the end of the roller shaft located above is movably inserted into the guide cavity. An adjusting screw is threaded into the top of the fixed plate. One end of the adjusting screw extends into the guide cavity and is rotatably connected to a T-shaped insert. The bottom of the T-shaped insert is movably inserted into a protrusion at the end of the roller shaft.

[0022] The technical effects and advantages of this utility model are as follows:

[0023] This invention uses a positioning component to position the elastic sheet, and then, in conjunction with an elastic force testing component, moves vertically inside the tooling bracket to apply pressure to the positioned elastic sheet. This allows for testing whether the elasticity of the elastic sheet meets the usage requirements. The operation is simple and convenient, and the testing accuracy is high, making the elasticity testing of the elastic sheet more convenient and efficient. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0025] Figure 2 This is a partial sectional view of the side of the positioning component of this utility model.

[0026] Figure 3 This is a three-dimensional structural diagram of the connecting block of this utility model.

[0027] In the diagram: 100, base plate; 101, fixed plate; 102, cylindrical roller; 103, top plate; 104, column; 105, movable plate; 106, support spring; 107, lever dial indicator; 108, measuring rod; 109, pressing rod; 110, limit nut; 111, connecting block; 112, roller shaft; 113, ball bearing; 114, guide cavity; 115, T-shaped insert rod; 116, adjusting screw. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] This utility model provides, for example Figures 1-3 The illustrated fixture for testing the elasticity of a spring includes a fixture support, an elasticity test piece, and a positioning piece. The elasticity test piece is movably disposed inside the fixture support and can move up and down vertically. The positioning piece is disposed at the bottom of the fixture support and positions the spring below the elasticity test piece. In this embodiment, the positioning piece and the elasticity test piece are disposed vertically inside the fixture support. With the elasticity test piece moving vertically, the positioning piece positions the spring, and the elasticity test piece presses the spring downward. Based on the force value fed back by the elasticity test piece after the elastic deformation reaches a preset depth, it is possible to test whether the elasticity of the spring meets the usage requirements. The entire testing process is simple to operate, highly efficient, and provides more accurate and stable elasticity test values ​​for the spring.

[0030] The tooling bracket includes a base plate 100, a top plate 103 on top of the base plate 100, and two columns 104 vertically and fixedly connected at two ends between the base plate 100 and the top plate 103. The connection between the top plate 103 and the base plate 100 and the ends of the columns 104 can be fastened with screws, so that the three can be disassembled and assembled to facilitate subsequent storage or maintenance.

[0031] The elasticity test piece includes a movable plate 105 and a lever dial indicator 107. The movable plate 105 is movably disposed between the base plate 100 and the top plate 103 and can move axially along the column 104. The lever dial indicator 107 is fixedly connected to the middle of the top of the movable plate 105. The measuring end of the lever dial indicator 107 is provided with a measuring rod 108 extending to the bottom of the movable plate 105. A pressing rod 109 is movably inserted into the middle of the top of the top plate 103. The bottom end of the pressing rod 109 passes through the top plate 103 and is fixedly connected to a connecting block 111. The bottom end of the connecting block 111 is fixed to the top of the movable plate 105. The movable plate 105 is located at the connecting... The inner side of block 111; the two ends of the movable plate 105 can be slidably connected to the column 104 through linear bearings or through holes, which can ensure the stability of the lever dial indicator 107 moving in the vertical direction, so that the measuring rod 108 contacts and squeezes the spring piece positioned by the positioning component, and the lever dial indicator 107 feeds back the pressure on the measuring rod 108, thereby obtaining the elastic force of the spring piece, making the elastic force test more convenient; in addition, the setting of the pressing rod 109 can make it convenient for the user to press the movable plate 105 down, and together with the setting of the connecting block 111, the pushing force applied by the pressing rod 109 to the movable plate 105 is more stable;

[0032] Furthermore, two elastic springs 106 are provided on both sides of the connecting block 111, and the two elastic springs 106 are fixedly connected to the opposite side of the movable plate 105 and the top plate 103, respectively; the outer wall of the lower pressure rod 109 is provided with external threads, and the outer wall of the lower pressure rod 109 is connected to the limit nut 110 through the external threads, and the limit nut 110 is located above the top plate 103; the elastic springs 106 are provided so that when the movable plate 105 moves downward, it can be stretched and deformed to generate a reverse tension force, so that the movable plate 105 can be driven to move upward after the test. This design also avoids the obstruction of the positioning components by the movable plate 105 and measuring rod 108 during spring feeding. In addition, the setting of the limit nut 110, together with its threaded connection with the outer wall of the pressure rod 109, allows the position of the limit nut 110 on the outer wall of the pressure rod 109 to be adjusted by turning it clockwise or counterclockwise, thereby blocking and limiting the downward movement distance of the pressure rod 109. This allows the user to simply press down on the pressure rod 109 during testing, and the limit nut 110 automatically provides the blocking and positioning function, facilitating the elastic force test of the spring at a predetermined pressing depth.

[0033] The positioning component includes two sets of fixing plates 101 and two sets of cylindrical rollers 102. The two sets of fixing plates 101 are arranged at a distance from front to back, and each set of fixing plates 101 consists of two plates arranged at a horizontal distance. The two sets of cylindrical rollers 102 are respectively movably arranged inside the two sets of fixing plates 101. Each set of cylindrical rollers 102 consists of two plates arranged at a vertical distance. By inserting a spring between two adjacent cylindrical rollers 102, the spring can be placed horizontally between the two sets of cylindrical rollers 102. As the measuring rod 108 presses down, the spring located between the cylindrical rollers 102 bends and deforms downward, while the two ends of the spring can move towards each other to meet the deformation requirements of the spring.

[0034] Furthermore, a roller shaft 112 is inserted into the middle of the cylindrical roller 102, and a ball bearing 113 is fixedly provided between the roller shaft 112 and the cylindrical roller 102. Both ends of the roller shaft 112 are fixedly inserted into the side wall of the fixing plate 101, respectively. The top of the fixing plate 101 is provided with a guide cavity 114, and the end of the roller shaft 112 located above it is movably inserted into the guide cavity 114. An adjusting screw 116 is threaded into the top of the fixing plate 101, and one end of the adjusting screw 116 extends into the guide cavity 114 and rotates. The device is dynamically connected to a T-shaped insert 115. The bottom of the T-shaped insert 115 is movably inserted into a protrusion at the end of the roller shaft 112. By utilizing the support of the roller shaft 112 on the cylindrical roller 102, the cylindrical roller 102 can rotate on the outer wall of the roller shaft 112. In combination with the guide cavity 114, the T-shaped insert 115 and the adjusting screw 116, the distance between two adjacent cylindrical rollers 102 can be adjusted to accommodate the positioning of spring sheets of various thicknesses, thereby improving the adaptability of use.

[0035] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spring force testing fixture, characterized in that, include: Tooling brackets; An elastic force test piece, wherein the elastic force test piece is movably disposed inside the tooling bracket and can be raised and lowered in the vertical direction; A positioning element is provided at the bottom of the tooling bracket to position the spring sheet below the elastic force test piece.

2. The elastic force testing fixture for a spring sheet according to claim 1, characterized in that, The tooling bracket includes: A base plate (100) is provided above the base plate (100) and a top plate (103). Two columns (104) are vertically and fixedly connected at two ends between the base plate (100) and the top plate (103).

3. The elastic force testing fixture for a spring sheet according to claim 2, characterized in that, The elasticity test piece includes: Movable plate (105), which is movably disposed between the bottom plate (100) and the top plate (103) and can move axially along the column (104); A lever dial indicator (107) is fixedly connected to the top center of the movable plate (105), and the measuring end of the lever dial indicator (107) is provided with a measuring rod (108) extending to the bottom of the movable plate (105).

4. The elastic force testing fixture for a spring sheet according to claim 3, characterized in that, The elasticity test piece also includes: A pressure rod (109) is movably inserted into the middle of the top of the top plate (103). The bottom end of the pressure rod (109) passes through the top plate (103) and is fixedly connected to a connecting block (111). The bottom end of the connecting block (111) is fixed to the top of the movable plate (105). The movable plate (105) is located inside the connecting block (111). Elastic tension springs (106) are provided on both sides of the connecting block (111), and the two elastic tension springs (106) are fixedly connected to the opposite side of the movable plate (105) and the top plate (103), respectively.

5. The elastic force testing fixture for a spring sheet according to claim 4, characterized in that, The outer wall of the pressure rod (109) is provided with an external thread, and the outer wall of the pressure rod (109) is connected to a limit nut (110) through the external thread. The limit nut (110) is located above the top plate (103).

6. The elastic force testing fixture for a spring sheet according to claim 1, characterized in that, The positioning element includes: Two sets of fixing plates (101) are arranged at an interval between front and back, and each set of fixing plates (101) consists of two plates arranged at a horizontal interval. Two sets of cylindrical rollers (102) are respectively movably arranged inside two sets of fixed plates (101), and each set of cylindrical rollers (102) consists of two rollers arranged vertically and horizontally.

7. The elastic force testing fixture for a spring sheet according to claim 6, characterized in that, A roller shaft (112) is inserted into the middle of the cylindrical roller (102). A ball bearing (113) is fixed between the roller shaft (112) and the cylindrical roller (102). Both ends of the roller shaft (112) are fixedly inserted into the side wall of the fixing plate (101). The top of the fixing plate (101) is provided with a guide cavity (114). The end of the roller shaft (112) located above is movably inserted into the guide cavity (114). An adjusting screw (116) is threaded into the top of the fixing plate (101). One end of the adjusting screw (116) extends into the guide cavity (114) and is rotatably connected to a T-shaped insert (115). The bottom of the T-shaped insert (115) is movably inserted into a protrusion opened at the end of the roller shaft (112).

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