A spring force testing device

Abstract

This application provides a spring force testing device, belonging to the technical field of spring testing equipment. The spring force testing device includes a support testing component and a positioning component. A testing device is mounted on the support platform; a first fixing block is fixed to the support platform, and a second fixing block is slidably mounted on the support platform. Vertical plates are fixedly connected to both the first and second fixing blocks. U-shaped clamps are respectively provided on the opposite surfaces of the two vertical plates. Fasteners are screwed onto both vertical plates, and each fastener is connected to one of the two U-shaped clamps. The U-shaped clamps secure both ends of the spring body, preventing it from falling off during tensile testing.

Description

Technical Field

[0001] This application relates to the field of spring testing equipment, and more specifically, to a spring elasticity testing device. Background Technology

[0002] Elastic force, also known as "elastic power," is the force that allows an object to return to its original shape after being deformed by an external force and the force is removed. Its direction is opposite to the direction of the external force that caused the deformation. Because the deformation of an object can take many forms, the resulting elastic force can also take many different forms. Spring force refers to the elastic force of a spring, generated by compressing or stretching it. When a spring is compressed or stretched, it exhibits a force that attempts to restore its original shape.

[0003] A spring force testing machine is a device used to perform durability fatigue testing on springs to test their elastic life and evaluate their durability life. Spring quality inspection machines are mainly used for fatigue life testing of various helical springs, shock absorbers, sealing springs, etc., and are widely used in the production of springs and shock absorbers. For example, the spring force testing machine for spring production disclosed in Chinese application number 201921741202.6 can perform spring force testing on springs. However, existing spring force testing machines cannot fix the position of the spring well during testing, and the spring is prone to detachment, which can cause splashing. Utility Model Content

[0004] To overcome the above shortcomings, this application provides a spring force testing device, which aims to improve the problem that spring force testing machines cannot properly fix the position of springs when testing springs, and springs are prone to detachment, resulting in splashing.

[0005] This application provides a spring force testing device, including a support testing component and a positioning component.

[0006] A support test assembly includes a support platform on which testing equipment is mounted; The positioning component includes a first fixing block and a second fixing block. The first fixing block is fixed to the support platform, and the second fixing block is slidably installed on the support platform. Vertical plates are fixedly connected to both the first fixing block and the second fixing block. U-shaped clips are respectively provided on the opposite sides of the two vertical plates. Fasteners are screwed onto both vertical plates, and the two fasteners are respectively connected to the two U-shaped clips.

[0007] In one specific implementation, both fasteners include knobs, each knob is fixedly connected to a threaded rod, and the other end of each threaded rod is screwed through the two vertical plates and connected to the U-shaped clamp.

[0008] In one specific implementation, a cylinder is mounted on the support platform, and the cylinder rod end of the cylinder is fixedly connected to the second fixing block.

[0009] In one specific implementation, the support platform is provided with scale markings, the starting end of which is aligned with the end of the second fixing block that is close to the first fixing block.

[0010] In one specific implementation, an indicator needle is fixedly connected to the outer side of one end of the second fixing block near the first fixing block, and the indicator needle is in contact with the scale markings.

[0011] In one specific implementation, one side wall of the U-shaped clamp begins to have a first threaded groove that mates with the threaded rod.

[0012] In one specific implementation, each of the two vertical plates is fixedly connected to a connecting post on its opposite side, and the threaded rod is threaded through the connecting post.

[0013] In one specific implementation, the support platform is equipped with casters at its bottom.

[0014] Beneficial effects: 1. The U-shaped clip design allows both ends of the spring body to be held in place, preventing the spring body from falling off during the stretching test. 2. By setting fasteners, the U-shaped clip can be further fixed, making the clamping of the spring body more stable during the stretching process, and it can also clamp spring bodies of various specifications. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the spring force testing device provided in the embodiments of this application; Figure 2 A schematic diagram of the positioning component structure provided for an embodiment of this application; Figure 3 Provided for the implementation of this application Figure 2 Enlarged structural diagram at point A in the middle; Figure 4A schematic diagram illustrating the positional relationship between the first fixing block and the first fixing block provided for an embodiment of this application; Figure 5 A schematic diagram of the connection structure between the fastener and the vertical plate provided in the embodiments of this application.

[0017] In the diagram: 10-Support test assembly; 110-Support platform; 120-Testing equipment; 20-Positioning assembly; 210-First fixing block; 220-Cylinder; 230-Second fixing block; 240-Vertical plate; 250-Scale markings; 260-Indicator needle; 270-Fastener; 271-Knob; 272-Threaded rod; 280-U-shaped clamp; 30-Spring body. Detailed Implementation

[0018] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0019] Please see Figures 1-5 This application provides a spring force testing device, including a support testing component 10 and a positioning component 20.

[0020] Please see Figure 1 The support test assembly 10 includes a support platform 110, on which a testing device 120 is installed; wherein, the testing device 120 performs elastic force testing on the spring body 30.

[0021] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The positioning component 20 includes a first fixing block 210 and a second fixing block 230. The first fixing block 210 is fixed to the support platform 110, and the second fixing block 230 is slidably mounted on the support platform 110. Vertical plates 240 are fixedly connected to both the first fixing block 210 and the second fixing block 230. U-shaped clips 280 are respectively provided on the opposite surfaces of the two vertical plates 240. Fasteners 270 are screwed onto both vertical plates 240, and the two fasteners 270 are respectively connected to the two U-shaped clips 280. The spring body 30 is placed between the two vertical plates 240, so that the two U-shaped clips 280 are respectively engaged in the spring grooves at both ends of the spring body 30. Then, the fasteners 270 are selected so that they are connected to the U-shaped clips 280 through the inside of the spring body 30, thereby achieving positioning and clamping of the spring body 30. Then, the second fixing block 230 is slid, so that the spring body 30 is stretched, and the detection device 120 performs elasticity detection on it. The U-shaped clip 280 secures both ends of the spring body 30, preventing it from falling off during tensile testing. The fastener 270 further secures the U-shaped clip 280, ensuring a more stable grip on the spring body 30 during stretching and allowing for the clamping of spring bodies 30 of various sizes.

[0022] In this embodiment, both fasteners 270 include a knob 271, and each knob 271 is fixedly connected to a threaded rod 272. The other ends of the threaded rods 272 are screwed through the two vertical plates 240 and connected to the U-shaped clamps 280. A first threaded groove, which mates with the threaded rod 272, is formed on one side wall of the U-shaped clamp 280. Connecting posts are fixedly connected to the opposite surfaces of the two vertical plates 240, and the threaded rods 272 are screwed through the connecting posts. When the two U-shaped clamps 280 are respectively engaged in the spring grooves at both ends of the spring body 30, rotating the knob 271 causes the threaded rods 272 to rotate, thereby connecting the threaded rods 272 with the U-shaped clamps 280 and further securing the U-shaped clamps 280.

[0023] In this embodiment, a cylinder 220 is mounted on the support platform 110, and the cylinder rod end of the cylinder 220 is fixedly connected to the second fixing block 230. The cylinder 220 is used to stretch the spring body 30.

[0024] In the specific configuration, the support platform 110 is provided with scale markings 250, the starting end of which is aligned with the end of the second fixing block 230 near the first fixing block 210. An indicator needle 260 is fixedly connected to the outer side of the end of the second fixing block 230 near the first fixing block 210, and the indicator needle 260 contacts the scale markings 250. The scale markings 250 allow the distance the second fixing block 230 moves to be visually observed, thus recording the stretching distance of the spring body 30.

[0025] Furthermore, the support platform 110 is equipped with casters at its bottom. These casters allow the entire device to be moved.

[0026] Working principle of the spring force testing device: The spring body 30 is placed between two vertical plates 240, with two U-shaped clips 280 respectively engaging the spring grooves at both ends of the spring body 30. Then, fasteners 270 are selected, connecting the fasteners 270 to the U-shaped clips 280 through the inside of the spring body 30, thus achieving positioning and clamping of the spring body 30. The second fixing block 230 is then slid, causing the spring body 30 to be stretched, allowing the testing device 120 to perform elasticity testing. The U-shaped clips 280 secure both ends of the spring body 30, preventing it from falling off during the stretching test. The fasteners 270 further secure the U-shaped clips 280, making the clamping of the spring body 30 more stable during stretching and allowing for the clamping of spring bodies 30 of various sizes.

[0027] It should be noted that the specific model and specifications of cylinder 220 need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0028] The power supply and principle of cylinder 220 are clear to those skilled in the art and will not be described in detail here.

[0029] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

Claims

1. A spring force testing device, characterized in that, include The support test assembly (10) includes a support platform (110) on which a testing device (120) is mounted. The positioning component (20) includes a first fixing block (210) and a second fixing block (230). The first fixing block (210) is fixed on the support platform (110), and the second fixing block (230) is slidably installed on the support platform (110). Vertical plates (240) are fixedly connected to both the first fixing block (210) and the second fixing block (230). U-shaped clips (280) are respectively provided on the opposite surfaces of the two vertical plates (240). Fasteners (270) are screwed onto both vertical plates (240). Both fasteners (270) include knobs (271). Threaded rods (272) are fixedly connected to the two knobs (271). The other ends of the two threaded rods (272) are screwed through the two vertical plates (240) and connected to the U-shaped clips (280).

2. The spring force testing device according to claim 1, characterized in that, A cylinder (220) is installed on the support platform (110), and the cylinder rod end of the cylinder (220) is fixedly connected to the second fixing block (230).

3. The spring force testing device according to claim 1, characterized in that, The support platform (110) is provided with scale marks (250), and the starting end of the scale marks (250) is aligned with the end of the second fixing block (230) near the first fixing block (210).

4. The spring force testing device according to claim 3, characterized in that, The second fixing block (230) has an indicator needle (260) fixedly connected to the outer side of one end near the first fixing block (210), and the indicator needle (260) is in contact with the scale of the scale (250).

5. A spring force testing device according to claim 1, characterized in that, The U-shaped clamp (280) has a first threaded groove on one side wall that mates with the threaded rod (272).

6. The spring force testing device according to claim 1, characterized in that, Each of the two vertical plates (240) has a connecting post fixedly connected to its opposite face, and the threaded rod (272) is threaded through the connecting post.

7. A spring force testing device according to claim 1, characterized in that, The support platform (110) is equipped with casters at its bottom.

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