Spring force tester

Abstract

The utility model discloses a spring force tester, which belongs to the field of testing mechanisms and comprises a base table top, a top layer arranged at the upper end of the base table top, a middle plate arranged at the upper end of the top layer, supporting columns symmetrically arranged on the left side and the right side among the base table top, the middle plate and the top layer, and a threaded vertical rod in threaded connection with the middle of the inner end of the top layer. The front end and the rear end of the threaded vertical rod are symmetrically and fixedly connected with hand rotating rods, the lower end of the threaded vertical rod penetrates through the top layer and is fixedly connected with a balancing weight, and the lower end of the balancing weight is fixedly connected with a pressing block penetrating through the middle plate. Therefore, when the to-be-detected spring is stressed, the force can be uniformly distributed in the axial direction of the to-be-detected spring, the measured force value and deformation data can be ensured to be accurate, and key performance indexes such as the stiffness coefficient of the to-be-detected spring can be accurately determined.

Description

Technical Field

[0001] This utility model relates to the field of testing mechanisms, and more specifically, to a spring force tester. Background Technology

[0002] In numerous fields such as industrial production, machinery manufacturing, automotive parts processing, aerospace, and everyday hardware products, the accurate testing of spring performance is crucial as a commonly used elastic element. The force characteristics of a spring directly affect the quality, reliability, and safety of the products in which it is used.

[0003] When testing a spring using a manual spring force tester, the spring to be tested needs to be placed under the pressure block to ensure that the test force is applied to the spring evenly and accurately. However, due to the lack of an effective positioning and guidance mechanism, it is difficult for operators to accurately place the spring in the center of the pressure block by visual inspection and manual operation. Eccentric deformation will lead to inaccurate force data obtained from the test. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a spring force tester. After setting up the centering mechanism, this solution can ensure that the spring under test is always in the center position of the lower part of the pressing block during the test. In this way, when the spring under test is subjected to pressure, the force will be evenly distributed on the axial direction of the spring under test, which can ensure that the measured force value and deformation data are accurate, thereby accurately determining the spring constant and other key performance indicators of the spring under test.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A spring force tester includes a base platform, a top layer at the top of the base platform, a middle plate at the top of the top layer, symmetrical support columns on the left and right sides between the base platform, the middle plate, and the top layer, a threaded vertical rod threadedly connected to the inner center of the top layer, hand-operated rods symmetrically fixed to the front and rear ends of the threaded vertical rod, a counterweight block fixedly connected to the lower end of the threaded vertical rod through the top layer, a pressing block fixedly connected to the lower end of the counterweight block through the middle plate, an additional plate at the top of the base platform, a first vertical plate and a second vertical plate symmetrically slidably connected to the left and right sides of the upper end of the additional plate, a centering concave triangular block fixedly connected to the adjacent ends of the first and second vertical plates, telescopic sleeve horizontal bars symmetrically arranged on the front and rear sides of the adjacent ends of the first and second vertical plates, the telescopic sleeve horizontal bars extending through the right side of the second vertical plate, displacement side plates fixedly connected to the right ends of the two telescopic sleeve horizontal bars, and an irregularly shaped rotating block located between the second vertical plate and the displacement side plate connected to the upper end of the additional plate.

[0009] Furthermore, a numerical display is fixedly connected to the front left side of the middle plate, and the numerical display works in conjunction with the pressing block.

[0010] Furthermore, an outer rotating rod is installed at the right end of the irregularly shaped rotating block, and the outer rotating rod passes through the position between the displacement side plate and the additional plate.

[0011] Furthermore, two concave triangular blocks are located on the left and right sides of the pressing block, respectively, and a spring to be tested is placed between the two concave triangular blocks.

[0012] Furthermore, a zone pad is fixedly connected to the upper center of the base platform, and the zone pad is located directly below the pressing block.

[0013] Furthermore, an alignment indicator block is fixedly connected to the upper end of the area pad, and the alignment indicator block is located in the center of the area pad.

[0014] Furthermore, multiple anti-slip pads are fixedly connected to the lower end of the base platform, and the multiple anti-slip pads are distributed in a rectangular pattern.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) In this scheme, during the pressing process, the two concave triangular blocks on the additional plate, which serve as the centering mechanism, are manually rotated through the outer rotating rod outside the irregular rotating block. After the irregular rotating block rotates, its pulling force causes the two concave triangular blocks to move closer to each other. The two concave triangular blocks are then aligned with the spring to be tested below the pressing block. After alignment, the position of the spring to be tested can be accurately shifted to the bottom of the pressing block. When the centering mechanism is set, it can be ensured that the spring to be tested is always in the center position of the bottom of the pressing block during the test. In this way, when the spring to be tested is subjected to pressure, the force will be evenly distributed on the axial direction of the spring to be tested, which can ensure that the measured force value and deformation data are accurate, thereby accurately determining the spring constant and other key performance indicators of the spring to be tested.

[0018] (2) At the same time, the anti-slip pads under the base platform can ensure the overall stability of the equipment during the pressure test. The area pads are replaceable and can be replaced in time if they are damaged. This greatly improves the maintainability and service life of the equipment. The centering indicator blocks on the area pads can help the staff visually place the spring to be tested under the pressing block as much as possible, so that the spring to be tested is close to the center position of the pressing block when it is initially placed, which provides convenience for the precise adjustment of the subsequent centering mechanism, thereby further improving the efficiency and accuracy of the entire test operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the base platform structure of this utility model;

[0020] Figure 2 This is a partial enlarged structural diagram of the lower part of the base platform of this utility model;

[0021] Figure 3 This is an enlarged structural diagram of the added plate of this utility model;

[0022] Figure 4 This is a schematic diagram of the enlarged structure of the added plate of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Base platform; 2. Middle plate; 3. Top layer; 4. Support column; 5. Threaded vertical rod; 6. Hand-operated rod; 7. Counterweight; 8. Pressing block; 9. Area pad; 10. Centering indicator block; 11. Anti-slip foot; 12. Numerical display; 13. Additional plate; 14. First vertical plate; 15. Second vertical plate; 16. Displacement side plate; 17. Telescopic sleeve horizontal bar; 18. Irregularly shaped rotating block; 19. Outer rotating rod; 20. Centering concave triangular block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example:

[0029] Please see Figure 1-4 A spring force tester includes a base platform 1, a top layer 3 at the upper end of the base platform 1, a middle plate 2 at the upper end of the top layer 3, support columns 4 symmetrically arranged on the left and right sides between the base platform 1, the middle plate 2, and the top layer 3, a threaded vertical rod 5 threadedly connected to the inner center of the top layer 3, hand-operated rods 6 symmetrically fixedly connected to the front and rear ends of the threaded vertical rod 5, a counterweight 7 fixedly connected to the lower end of the threaded vertical rod 5 through the top layer 3, a pressing block 8 fixedly connected to the lower end of the counterweight 7 through the middle plate 2, and an additional plate 13 at the upper end of the base platform 1. The upper left and right sides of the 3 are symmetrically connected to a first vertical plate 14 and a second vertical plate 15. The ends of the first vertical plate 14 and the second vertical plate 15 that are close to each other are fixedly connected to a centering concave triangular block 20. The front and rear sides of the ends of the first vertical plate 14 and the second vertical plate 15 that are close to each other are symmetrically provided with telescopic sleeve horizontal bars 17. The telescopic sleeve horizontal bars 17 pass through the right side of the second vertical plate 15. The right ends of the two telescopic sleeve horizontal bars 17 are fixedly connected to a displacement side plate 16. The upper end of the added plate 13 is connected to an irregular rotating block 18 located between the second vertical plate 15 and the displacement side plate 16.

[0030] Please see Figure 1-4 A numerical display 12 is fixedly connected to the left front end of the middle plate 2. The numerical display 12 cooperates with the pressing block 8. An outer rotating rod 19 is installed on the right end of the irregular rotating block 18. The outer rotating rod 19 passes through the position between the displacement side plate 16 and the additional plate 13. Two centering concave triangular blocks 20 are located on the left and right sides of the pressing block 8, and a spring to be tested is placed between the two centering concave triangular blocks 20. A region pad 9 is fixedly connected to the upper middle part of the base platform 1. The region pad 9 is located directly below the pressing block 8. A centering indicator block 10 is fixedly connected to the upper end of the region pad 9. The centering indicator block 10 is located in the center of the region pad 9. Multiple anti-slip feet 11 are fixedly connected to the lower end of the base platform 1. The multiple anti-slip feet 11 are distributed in a rectangular pattern.

[0031] Please see Figure 1-4In this scheme, the spring to be tested is placed on the area pad 9 on the base platform 1, and the hand crank 6 is rotated to make the threaded vertical rod 5 rotate, causing the pressing block 8 to gradually press down to provide pressure to the spring to be tested. The relevant test data can be displayed through the numerical display 12. During the pressing process, the two centering concave triangular blocks 20 on the additional plate 13, which serves as the centering mechanism, are manually rotated through the outer rotating rod 19 outside the irregular rotating block 18. After the irregular rotating block 18 rotates, its pulling force causes the two centering concave triangular blocks 20 to move closer to each other. The two centering concave triangular blocks 20 are simultaneously aligned with the spring to be tested below the pressing block 8. After alignment, the position of the spring to be tested can be accurately shifted to directly below the pressing block 8. When the centering mechanism is set, it can be ensured that the spring to be tested is always in the center position under the pressing block 8 during the test. When the spring under test is subjected to pressure, the force is evenly distributed along the axial direction of the spring, ensuring the accuracy of the measured force and deformation data. This allows for precise determination of key performance indicators such as the spring constant. Meanwhile, the anti-slip pads 11 under the base platform 1 ensure the overall stability of the equipment during pressure testing. Furthermore, the area pad 9 is replaceable, allowing for timely replacement in case of damage, greatly improving the maintainability and lifespan of the equipment. The centering indicator block 10 on the area pad 9 assists the operator in visually positioning the spring under test as close as possible to the center of the pressing block 8 from the initial placement, facilitating subsequent precise adjustments to the centering mechanism and further improving the efficiency and accuracy of the entire testing operation.

[0032] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.

Claims

1. A spring force tester comprising a base platen (1) characterised in that: The upper end of the base table (1) is provided with a top layer (3), the upper end of the top layer (3) is provided with a middle plate (2), the left and right sides of the base table (1) and the middle plate (2) and the top layer (3) are symmetrically provided with support columns (4), the middle of the inner end of the top layer (3) is threadedly connected with a threaded vertical rod (5), the front and rear ends of the threaded vertical rod (5) are symmetrically fixedly connected with hand rotating rods (6), the lower end of the threaded vertical rod (5) penetrates the top layer (3) and is fixedly connected with a counterweight (7), the lower end of the counterweight (7) is fixedly connected with a pressing block (8) penetrating the middle plate (2), the upper end of the base table (1) is provided with an added plate (13), the upper end of the added plate (13) is symmetrically slidably connected with a first vertical plate (14) and a second vertical plate (15) on the left and right sides, the end of the first vertical plate (14) and the second vertical plate (15) approaching each other is fixedly connected with a centering concave triangular block (20), the front and rear sides of the end of the first vertical plate (14) and the second vertical plate (15) approaching each other are symmetrically provided with telescopic sleeve rod horizontal strips (17), the telescopic sleeve rod horizontal strips (17) penetrate out of the right side of the second vertical plate (15), the right ends of the two telescopic sleeve rod horizontal strips (17) are fixedly connected with displacement side plates (16), the upper end of the added plate (13) is connected with a special-shaped rotating block (18) located between the second vertical plate (15) and the displacement side plate (16).

2. The spring force tester of claim 1, wherein: The front left side of the middle plate (2) is fixedly connected with a numerical display (12), and the numerical display (12) cooperates with the pressing block (8).

3. The spring force tester of claim 1, wherein: The right end of the special-shaped rotating block (18) is provided with an outer rotating rod (19), and the outer rotating rod (19) penetrates the position between the displacement side plate (16) and the added plate (13).

4. The spring force tester of claim 1, wherein: The two centering concave triangular blocks (20) are respectively located on the left and right sides of the pressing block (8), and a spring to be detected is placed between the two centering concave triangular blocks (20).

5. The spring force tester of claim 1, wherein: The upper end of the base table (1) is fixedly connected with a region cushion plate (9), and the region cushion plate (9) is located directly below the pressing block (8).

6. The spring force tester of claim 5, wherein: The upper end of the region cushion plate (9) is fixedly connected with a centering prompt block (10), and the centering prompt block (10) is located at the central position of the region cushion plate (9).

7. The spring force tester of claim 1, wherein: The lower end of the base table (1) is fixedly connected with a plurality of anti-skid cushion feet (11), and the plurality of anti-skid cushion feet (11) are distributed in a rectangular shape.

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