A spiral spring holding test tool

Abstract

The present application provides a volute spring holding experimental tooling, comprising a base plate, a rotating column, a positioning observation column and a rotating arm, wherein one end of the rotating column is fixedly connected to the base plate, and a positioning observation column is provided at the end of the rotating column away from the base plate, wherein the length direction of the positioning observation column is perpendicular to the rotating column, and the rotating arm is rotatably connected to the rotating column. The volute spring holding experimental tooling provided above is designed with a positioning observation column and a rotating arm, wherein the position of the positioning observation column is fixed, and the rotating arm rotates with the deformation of the volute spring, and by regularly observing and recording the relative position changes of the positioning column and the rotating arm, and by comparing the currently observed position with the initial position, the rotation angle and degree of the rotating arm can be judged to know whether the volute spring has undergone plastic deformation, so as to solve the problem that it is impossible to intuitively observe whether the volute spring located on the tooling has undergone plastic deformation.

Description

Technical Field

[0001] The present application relates to the field of spring performance testing, and in particular to a spiral spring retaining test fixture. Background Art

[0002] The spiral spring (also called the spring) is widely used in many mechanical and electronic devices. It stores and releases energy to achieve various mechanical movements. Its performance and reliability are essential for the normal operation of the equipment. The spiral spring retention test is a method to test and evaluate the performance of spiral springs. It is mainly used to measure the torque, elastic modulus, fatigue life and other parameters of the spiral spring.

[0003] However, the spiral spring will deform and fatigue during long-term use, which requires special experiments to test its performance and reliability. At present, in the traditional spiral spring holding test fixture, after the spiral spring durability test, it is impossible to visually observe whether the spiral spring on the fixture has undergone plastic deformation, because the plastic deformation variable is very small and it is impossible to observe the shape of the spiral spring with the naked eye to determine whether plastic deformation has occurred. The spiral spring needs to be removed for subsequent observation and measurement to detect its plastic deformation. This not only increases the operation steps, but may also lead to an increase in experimental errors.

[0004] To this end, it is necessary to propose an improved spiral spring holding test fixture that allows workers to observe the position changes of the spiral spring and the fixture structure without removing the spiral spring, so as to solve the problem of not being able to intuitively observe whether the spiral spring located on the fixture has undergone plastic deformation. Utility Model Content

[0005] In view of this, it is necessary to provide a spiral spring holding experimental tool that enables the staff to observe the position change of the spiral spring and the tool structure without removing the spiral spring, so as to solve the above-mentioned problem.

[0006] The embodiment of the present application provides a scroll spring holding test tool, including:

[0007] A base plate, wherein a rotating shaft hole is formed on the base plate;

[0008] A rotating column, one end of which is fixedly connected to the rotating shaft hole, a positioning observation column is provided at one end of the rotating column away from the base plate, the length direction of the positioning observation column is perpendicular to the rotating column, a fixing groove is provided on the rotating column along the length direction of the positioning observation column and into the rotating column, and the length direction of the fixing groove is parallel to the length direction of the rotating column;

[0009] A rotating arm, the rotating arm is rotatably connected to the rotating column, and the rotating arm is located between the positioning observation column and the base plate;

[0010] One end of a spiral spring is slidably connected to the rotating arm, and the other end of the same spiral spring is fixed in the fixing groove.

[0011] In at least one embodiment of the present application, a limiting rod is detachably connected to the base plate, the limiting rod is located on a rotation path of the rotating arm, and the limiting rod limits the rotation of the rotating arm.

[0012] In at least one embodiment of the present application, a plug hole is provided on the base plate, one end of the limit rod is located in the plug hole, and the limit rod is detachably connected to the base plate through the plug hole.

[0013] In at least one embodiment of the present application, a plurality of the insertion holes are provided on the substrate, and the plurality of the insertion holes are distributed around the central axis of the rotating shaft hole.

[0014] In at least one embodiment of the present application, the rotating arm includes an arm body rotatably connected to the rotating column and a rotating block detachably connected to the arm body, one side of the rotating block is in contact with the substrate, and the rotating block is fixedly connected to one end of the spiral spring.

[0015] In at least one embodiment of the present application, a rotation groove is formed on one side of the rotating block attached to the substrate, one end of the spiral spring is located in the rotation groove, and the rotation of the rotating block drives the end of the spiral spring located in the rotation groove to move.

[0016] In at least one embodiment of the present application, a sliding adjustment groove is provided on the arm body, the length direction of the sliding adjustment groove is parallel to the length direction of the arm body, and the rotating block is slidably connected to the sliding adjustment groove.

[0017] In at least one embodiment of the present application, the rotating arm further includes a fixing bolt and a fixing plate located on a side of the arm body away from the rotating block, and the fixing bolt passes through the fixing plate and the sliding adjustment groove and is bolt-connected to the rotating block.

[0018] In at least one embodiment of the present application, a fixed column is provided on one end of the rotating column close to the substrate, the length direction of the fixed column is perpendicular to the length direction of the rotating column, an exit groove is opened on the side of the substrate away from the rotating column, and the fixed column is located in the exit groove.

[0019] In at least one embodiment of the present application, a boss is provided in the shaft hole, and the boss matches the fixing groove.

[0020] The above-mentioned spiral spring holding experimental tooling is designed with a positioning observation column and a rotating arm. The position of the positioning observation column is fixed, while the rotating arm rotates with the deformation of the spiral spring. By regularly observing and recording the relative position changes of the positioning column and the rotating arm, and by comparing the current observed position with the initial position, the rotation angle and degree of the rotating arm can be judged to know whether the spiral spring has produced plastic deformation, so as to solve the problem of not being able to intuitively observe whether the spiral spring located on the tooling has produced plastic deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of the structure of the spiral spring holding experimental tooling;

[0022] Figure 2 A three-dimensional diagram of the structure of the spiral spring holding experimental tooling;

[0023] Figure 3 A three-dimensional diagram of the structure of the spiral spring holding experimental tooling;

[0024] Figure 4 A three-dimensional diagram of the structure of the spiral spring holding experimental tooling;

[0025] Figure 5 Bottom view of the experimental fixture for holding the scroll spring;

[0026] Figure 6 for Figure 4 The cross-sectional view at AA of ;

[0027] Figure 7 A three-dimensional diagram of the structure behind the rotating column hidden in the experimental tooling for the spiral spring retention;

[0028] Figure 8 A three-dimensional diagram of the structure behind the rotating column hidden in the spiral spring holding experimental tooling.

[0029] Main component symbols

[0030] 100. Turbulent spring holding experimental tooling; 1. Base plate; 11. Socket; 12. Exit slot; 13. Rotating shaft hole; 14. Boss; 2. Rotating column; 21. Fixed slot; 22. Positioning observation column; 23. Fixed column; 3. Rotating arm; 31. Arm body; 311. Sliding adjustment slot; 32. Rotating block; 321. Rotating slot; 33. Fixing bolt; 4. Limit rod; 5. Fixing plate. DETAILED DESCRIPTION

[0031] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0032] It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "located on" another component, it may be directly located on the other component or there may be a central component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0033] The embodiment of the present application provides a scroll spring holding test tool, including:

[0034] A base plate, wherein a rotating shaft hole is formed on the base plate;

[0035] A rotating column, one end of which is fixedly connected to the rotating shaft hole, a positioning observation column is provided at one end of the rotating column away from the base plate, the length direction of the positioning observation column is perpendicular to the rotating column, a fixing groove is provided on the rotating column along the length direction of the positioning observation column and into the rotating column, and the length direction of the fixing groove is parallel to the length direction of the rotating column;

[0036] A rotating arm, the rotating arm is rotatably connected to the rotating column, and the rotating arm is located between the positioning observation column and the base plate;

[0037] One end of a spiral spring is slidably connected to the rotating arm, and the other end of the same spiral spring is fixed in the fixing groove. The spiral spring holding experimental tooling provided above is designed with a positioning observation column and a rotating arm. The position of the positioning observation column is fixed, and the rotating arm rotates with the deformation of the spiral spring. By regularly observing and recording the relative position changes of the positioning column and the rotating arm, by comparing the current observed position with the initial position, the rotation angle and degree of the rotating arm can be judged to know whether the spiral spring has undergone plastic deformation, so as to solve the problem that it is impossible to intuitively observe whether the spiral spring located on the tooling has undergone plastic deformation.

[0038] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0039] See also Figure 1-Figure 8The embodiment of the present application provides a spiral spring holding experimental tool 100, comprising a base plate 1, a rotating column 2, a positioning observation column 22 and a rotating arm 3. The base plate 1 is provided with a rotating shaft hole 13, one end of the rotating column 2 is fixedly connected to the rotating shaft hole 13, and the end of the rotating column 2 away from the base plate 1 is provided with a positioning observation column 22, the length direction of the positioning observation column 22 is perpendicular to the rotating column 2, and a fixing groove 21 is provided on the rotating column 2 along the length direction of the positioning observation column 22 into the rotating column 2, and the length direction of the fixing groove 21 is parallel to the length direction of the rotating column 2. The rotating arm 3 is rotatably connected to the rotating column 2, and the rotating arm 3 is located between the positioning observation column 22 and the base plate 1. One end of a spiral spring is slidably connected to the rotating arm 3, and the other end of the same spiral spring is fixed in the fixing groove 21.

[0040] Specifically, the base plate 1 serves as a supporting platform and fixed foundation for the entire experimental tooling to ensure the stability and reliability of the overall structure. The shaft hole 13 is a hole opened on the base plate 1, and the rotating shaft is fixed in the shaft hole 13, which is achieved by a threaded or latch structure. One end of the rotating column 2 is fixedly connected to the base plate 1, providing a rotation axis for the rotating arm 3 to ensure the normal rotation movement of the spiral spring in the experiment. The positioning observation column 22 is located at the end of the rotating column 2 away from the base plate 1, and its length direction is perpendicular to the rotating column 2. The main function is to provide a fixed reference point for subsequent observation of the deformation and displacement of the spiral spring. The fixing groove 21 is opened in the rotating column 2 along the length direction of the positioning observation column 22, and matches the spiral spring fixing groove 21. Its function is to ensure that the spiral spring can be safely and accurately fixed on the tooling to avoid movement or sliding during the experiment. The rotating arm 3 is rotatably connected to the rotating column 2, and its main function is to connect one end of the spiral spring so that the spiral spring can rotate or deform with the movement of the rotating arm 3. The purpose of the rotating arm 3 being located between the positioning observation column 22 and the substrate 1 is to place the rotating arm 3 between the positioning observation column 22 and the substrate 1, which helps to limit its range of movement during the experiment. This constraint ensures that the rotating arm 3 can only move along the designed rotation path, avoiding unnecessary lateral or vertical movement, thereby ensuring the accuracy and consistency of the spiral spring experimental data. One end of the spiral spring is restricted by the positioning observation column 22 and connected to the rotating arm 3 by sliding, so as to allow the spiral spring to move freely with the rotation of the rotating arm 3. The other end of the same spiral spring is fixed in the fixing groove 21 to ensure the stability and accuracy of the spiral spring during the experiment.

[0041] In a specific example, a limiting rod 4 is detachably connected to the base plate 1 , and the limiting rod 4 is located on the rotation path of the rotating arm 3 . The limiting rod 4 limits the rotation of the rotating arm 3 .

[0042] Specifically, the limit rod 4 limits the rotation angle of the rotating arm 3 by its position and length, ensuring that the rotating arm 3 does not exceed the set angle range during the experiment, thereby ensuring the accuracy and consistency of the experiment. By limiting the rotation of the rotating arm 3, it is possible to prevent the spiral spring or experimental equipment from being damaged or causing accidents due to the rotating arm 3 exceeding the safety range. Adjustment and precise control: The design of the disassembly connection allows the operator to adjust or replace the limit rod 4 as needed to adapt to different experimental conditions or specific requirements of the spiral spring, thereby improving the flexibility and operability of the experiment. When performing a spiral spring retention experiment, the operator first installs and adjusts the limit rod 4 to ensure that it is correctly located on the rotation path of the rotating arm 3. Subsequently, when the rotating arm 3 starts to rotate, the limit rod 4 will limit the rotation angle of the rotating arm 3 according to its position to ensure control and accuracy in the experiment.

[0043] In a specific example, a plug hole 11 is provided on the base plate 1 , one end of the limiting rod 4 is located in the plug hole 11 , and the limiting rod 4 is detachably connected to the base plate 1 through the plug hole 11 .

[0044] Specifically, the socket 11 provides an accurate position so that the limit rod 4 can be firmly mounted on the substrate 1, ensuring that it can effectively limit the rotation range of the rotating arm 3. Since the connection between the limit rod 4 and the substrate 1 is detachable, the operator can easily adjust or replace the limit rod 4 according to the needs of the experiment and the characteristics of the spiral spring to meet the needs under different experimental conditions. The design of the socket 11 allows the installation position of the limit rod 4 to be adjusted according to the specific size and shape of the spiral spring, thereby improving the flexibility and adaptability of the experimental tooling. When using the spiral spring to hold the experimental tooling 100, the operator first selects the socket 11 at an appropriate position and inserts one end of the limit rod 4 into it. Then, the limit rod 4 is firmly fixed to the substrate 1 by an appropriate means (such as threaded connection or pin fixing). During the experiment, the limit rod 4 will limit the rotation range of the rotating arm 3 according to its position, ensuring the accuracy and repeatability of the experiment.

[0045] In a specific example, a plurality of the insertion holes 11 are formed on the substrate 1 , and the plurality of the insertion holes 11 are distributed around the central axis of the rotation shaft hole 13 .

[0046] Specifically, the design of multiple sockets 11 allows the operator to select a suitable position to insert the limit rod 4 according to the experimental requirements. This flexibility makes it possible to adjust and optimize the position of the limit rod 4 under different experimental conditions to adapt to the sizes and shapes of different spiral springs. Before the experiment begins, the operator can select a suitable position for the socket 11 according to the size and characteristics of the spiral spring. Then, by inserting the limit rod 4 or other connecting parts, it is fixed and stably installed on the substrate 1. During the experiment, these sockets 11 will play a supporting and fixing role to ensure that the device and spiral spring in the experiment can operate and test stably. These sockets 11 are distributed around the central axis of the shaft hole 13. This design allows the sockets 11 to form a circular or approximately circular layout surrounding the rotating column 2 on the surface of the substrate 1.

[0047] In a specific example, the rotating arm 3 includes an arm body 31 rotatably connected to the rotating column 2 and a rotating block 32 detachably connected to the arm body 31, one side of the rotating block 32 is in contact with the substrate 1, and the rotating block 32 is fixedly connected to one end of the spiral spring.

[0048] Specifically, the arm body 31 of the rotating arm 3 is a main structure that is rotatably connected to the rotating column 2. It is usually a rigid structure designed to be able to rotate freely around the rotating column 2 to facilitate the torsional movement of the spiral spring in the experiment. The arm body 31 is connected to the rotating column 2 by a certain connection method (such as a bearing, a pin, etc.) to ensure that the rotating arm 3 can rotate stably and freely during the experiment. The rotating block 32 is a component that is detachably connected to the arm body 31, and one side of it is attached to the surface on the substrate 1. The rotating block 32 can be fixedly connected to the arm body 31 by a thread, a pin or other connection method, so that it can be firmly fixed on the arm body 31. This design allows the rotating block 32 to be easily installed, disassembled and replaced as needed. Another important function of the rotating block 32 is to be fixedly connected to one end of the spiral spring. Usually, screws, clamps or other fixing devices are used to ensure that the spiral spring can be firmly fixed on the rotating block 32, thereby forming a whole with the rotating arm 3.

[0049] In a specific example, a rotation groove 321 is formed on one side of the rotation block 32 attached to the substrate 1 , one end of the spiral spring is located in the rotation groove 321 , and the rotation of the rotation block 32 drives the end of the spiral spring located in the rotation groove 321 to move.

[0050] Specifically, the rotating block 32 is a component that fits with the substrate 1, usually located on one side of the substrate 1. It can be fixed to the substrate 1 by screws, clamps or other connection methods to ensure that it will not shift or loosen during the experiment. A rotating groove 321 is provided on the rotating block 32, which is a groove or channel along the surface of the rotating block 32. The design of the rotating groove 321 allows one end of the spiral spring to be placed therein, ensuring that the spiral spring can maintain a fixed position during the rotation process. One end of the spiral spring is placed or fixed in the rotating groove 321, and its stability is ensured by appropriate fixing devices (such as screws, clamps, etc.). When the rotating block 32 rotates with the movement of the rotating arm 3, the spiral spring in the rotating groove 321 also moves accordingly. The design of the rotating block 32 allows its rotation to drive one end of the spiral spring in the rotating groove 321 to perform corresponding movements, such as twisting or rotation.

[0051] In a specific example, a sliding adjustment groove 311 is opened on the arm body 31 , the length direction of the sliding adjustment groove 311 is parallel to the length direction of the arm body 31 , and the rotating block 32 is slidably connected to the sliding adjustment groove 311 .

[0052] Specifically, the sliding adjustment groove 311 is a long groove or groove opened along the surface of the arm body 31, and its length direction is parallel to the length direction of the arm body 31. It is usually located near the connection between the rotating block 32 and the rotating arm 3, and is used to adjust and limit the range of motion of the rotating block 32. This design ensures that the sliding adjustment groove 311 can effectively control the position of the rotating block 32 on the arm body 31, so that it can move freely along the surface of the arm body 31, while maintaining stable and accurate position adjustment capabilities. The rotating block 32 and the sliding adjustment groove 311 are slidably connected by a suitable matching method. This connection method can be a sliding pair, a sliding guide rail or other structure that allows the rotating block 32 to move freely in the sliding adjustment groove 311. When the rotating arm 3 drives the spiral spring to rotate, the spiral spring will shrink inward or expand outward. The sliding connection between the rotating block 32 and the arm body 31 enables the rotating block 32 to adapt to the shape change of the spiral spring and reduce the influence of the rotating arm 3 on the spiral spring.

[0053] In a specific example, the rotating arm 3 further includes a fixing bolt 33 and a fixing plate 5 located on a side of the arm body 31 away from the rotating block 32 , and the fixing bolt 33 passes through the fixing plate 5 and the sliding adjustment groove 311 and is bolted to the rotating block 32 .

[0054] Specifically, the fixing bolt 33 passes through the fixing plate 5 and the sliding adjustment groove 311, and is finally fixed on the rotating block 32. This design ensures the fastening between the fixing plate 5 and the rotating block 32, and prevents it from loosening or shifting due to vibration or external force during the experiment. Through the fixing bolt 33, a firm connection is formed between the rotating block 32 and the fixing plate 5, so that the rotating block 32 can move stably in the sliding adjustment groove 311, ensuring that the fixing point of the spiral spring always remains in a predetermined position. The fixing plate 5 is usually installed on the back of the arm body 31, opposite to the rotating block 32. This arrangement can effectively separate the fixing and adjustment mechanisms, making the adjustment operation more convenient and controllable. The fixing plate 5 is not only a supporting platform for the fixing bolt 33, but also ensures the fixing effect of the fixing bolt 33 on the rotating block 32 through the stability and rigidity of its structure, thereby enhancing the stability and reliability of the entire experimental device.

[0055] In a specific example, a fixed column 23 is provided on one end of the rotating column 2 close to the substrate 1, and the length direction of the fixed column 23 is perpendicular to the length direction of the rotating column 2. An outlet groove 12 is opened on the side of the substrate 1 away from the rotating column 2, and the fixed column 23 is located in the outlet groove 12.

[0056] Specifically, the fixed column 23 is located at one end of the rotating column 2 close to the substrate 1, and its design is perpendicular to the length direction of the rotating column 2. This arrangement is usually used to provide additional support and positioning to ensure the stability and accuracy of the rotating column 2 in the experiment. The length direction of the fixed column 23 is perpendicular to the length direction of the rotating column 2, and this vertical position relationship helps to provide better positioning support during the rotation and stabilization process. An outlet groove 12 is provided on the side of the substrate 1 away from the rotating column 2, and the function of this outlet groove 12 is to accommodate the fixed column 23. The position design of the outlet groove 12 enables the fixed column 23 to be fixed therein and will not move or twist due to external force or vibration. The setting of the substrate 1 away from the side of the rotating column 2 ensures the stability and fixity of the outlet groove 12 and avoids possible interference or collision with the rotating column 2. In the spiral spring holding experimental tooling 100, the outlet groove 12 is not only used to fix and support the fixed column 23, but is also designed to serve as an outlet for the fixed column 23. This means that one side of the outlet slot 12 is open, allowing the fixing column 23 to be moved out of or into the outlet slot 12 through this opening. In normal use, the spiral spring keeps the experimental tooling 100 placed on a horizontal surface such as a desktop. The side with the outlet slot 12 is usually used as the bottom of the entire tooling. The opening of the outlet slot 12 is completely blocked by a horizontal surface such as a desktop, so that the fixing column 23 is enclosed in the outlet slot 12 and is fixed in the outlet slot 12. When the substrate 1 is lifted, the fixing column 23 can be taken out of the outlet slot 12.

[0057] In a specific example, a shaft hole 13 is formed on the base plate 1 , and one end of the rotating column 2 close to the base plate 1 is located in the shaft hole 13 . A boss 14 is formed in the shaft hole 13 , and the boss 14 matches the fixing groove 21 .

[0058] Specifically, one end of the rotating column 2 is installed in the rotating shaft hole 13, so that the rotating column 2 is fixed in the rotating hole, thereby ensuring stability and accuracy during the experiment. A boss 14 structure is usually designed inside the rotating shaft hole 13. The function of the boss 14 is to provide additional fixed support, especially to match the fixed groove 21 on the rotating column 2. The shape and size of the boss 14 will correspond to the fixed groove 21, and the function of the boss 14 is to prevent the rotating column 2 from rotating. The fixed groove 21 is usually opened on the rotating column 2 along its length direction, and is used to fix a boss 14 of a certain specific shape. Through the matching of the boss 14 and the fixed groove 21, the rotating column 2 is hindered by the boss 14 and cannot rotate when subjected to a rotating force, thereby achieving the role of assuming the rotating shaft of the rotating arm 3 and fixing one end of the spiral spring, so as to perform stable testing and operation. The design of the rotating shaft hole 13 and the boss 14 enhances the stability and accuracy of the rotating column 2 in the experiment. When the rotating arm 3 rotates around the rotating column 2, the boss 14 provides good support, avoiding the rotating column 2 from shaking or swaying due to the instability of the rotating arm 3 during rotation, which helps to improve the accuracy of the experiment.

[0059] The above is only an implementation method of the present application. It should be pointed out that a person skilled in the art can make improvements without departing from the inventive concept of the present application, but these improvements are within the scope of protection of the present application.

Claims

1. A spiral spring holding test tool, characterized in that: include: A base plate, wherein a rotating shaft hole is formed on the base plate; A rotating column, one end of which is fixedly connected to the rotating shaft hole, a positioning observation column is provided at one end of the rotating column away from the base plate, the length direction of the positioning observation column is perpendicular to the rotating column, a fixing groove is provided on the rotating column along the length direction of the positioning observation column and into the rotating column, and the length direction of the fixing groove is parallel to the length direction of the rotating column; A rotating arm, the rotating arm is rotatably connected to the rotating column, and the rotating arm is located between the positioning observation column and the base plate; One end of a spiral spring is slidably connected to the rotating arm, and the other end of the same spiral spring is fixed in the fixing groove.

2. The spiral spring holding test tool according to claim 1, characterized in that: A limiting rod is detachably connected to the base plate, the limiting rod is located on the rotation path of the rotating arm, and the limiting rod limits the rotation of the rotating arm.

3. The spiral spring holding test tool according to claim 2, characterized in that: The base plate is provided with an insertion hole, one end of the limiting rod is located in the insertion hole, and the limiting rod is detachably connected to the base plate through the insertion hole.

4. The spiral spring holding test tool according to claim 3, characterized in that: A plurality of the insertion holes are provided on the substrate, and the plurality of the insertion holes are distributed around the central axis of the rotating shaft hole.

5. The spiral spring holding test tool according to claim 1, characterized in that: The rotating arm comprises an arm body rotatably connected to the rotating column and a rotating block detachably connected to the arm body, one side of the rotating block is in contact with the base plate, and the rotating block is fixedly connected to one end of the spiral spring.

6. The spiral spring holding test tool according to claim 5, characterized in that: A rotation groove is provided on one side of the rotating block which is attached to the base plate. One end of the spiral spring is located in the rotation groove. The rotation of the rotating block drives the end of the spiral spring located in the rotation groove to move.

7. The spiral spring holding test tool according to claim 5, characterized in that: The arm body is provided with a sliding adjustment groove, the length direction of the sliding adjustment groove is parallel to the length direction of the arm body, and the rotating block is slidably connected to the sliding adjustment groove.

8. The spiral spring holding test tool according to claim 7, characterized in that: The rotating arm further comprises a fixing bolt and a fixing plate located at a side of the arm body away from the rotating block, and the fixing bolt penetrates through the fixing plate and the sliding adjustment groove and is bolt-connected with the rotating block.

9. The spiral spring holding test tool according to claim 1, characterized in that: A fixed column is provided on one end of the rotating column close to the base plate, the length direction of the fixed column is perpendicular to the length direction of the rotating column, an outlet slot is provided on the side of the base plate away from the rotating column, and the fixed column is located in the outlet slot.

10. The spiral spring holding test tool according to claim 1, characterized in that: A boss is provided in the rotating shaft hole, and the boss matches the fixing groove.

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