Spring force measurement positioning auxiliary tool

Abstract

The utility model belongs to the technical field of test tools, and particularly relates to a spring force measurement positioning auxiliary tool. The base is of a sleeve type structure, and a guide convex ring is arranged on the inner side of the top of the base; the positioning node sleeve is placed on the outer side of the top of the base so as to adjust a downward moving node of the downward pressing rod; a lower pressing disc is arranged at the top end of the lower pressing rod, and the lower end of the lower pressing rod is inserted into the hole cavity of the base; the lower pressing rod is sleeved with the to-be-tested spring piece, the upper end of the to-be-tested spring piece abuts against the lower pressing disc, the lower end of the to-be-tested spring piece abuts against the top of the base, and meanwhile it is guaranteed that the lower end of the to-be-tested spring piece is arranged on the guide protruding ring in a sleeving mode. Through the design structure, the spring piece to be tested can be ensured not to generate bending deformation in the transverse direction in the test process, so that a test result with high reliability is obtained.

Description

Technical Field

[0001] This utility model belongs to the field of testing tooling technology, and specifically relates to a spring force measuring and positioning auxiliary tooling. Background Technology

[0002] A spring is a part made of elastic material that deforms under external force and returns to its original shape after the force is removed. Therefore, after the spring is manufactured, it needs to be compressed to different lengths for pressure testing to ensure the quality of the product.

[0003] Currently, when testing spring pressure, the spring is placed directly between the pressure plate and the testing table for the pressure test. During this pressure test, due to the lack of a limiting structure in the lateral direction, the spring will bend and deform laterally when subjected to pressure, thus affecting the reliability of the test results. Utility Model Content

[0004] The purpose of this utility model is to provide an auxiliary tooling for spring force measurement and positioning. By designing a guide ring, the lower end of the spring to be tested is initially limited. At the same time, the design of the pressure rod ensures that the spring to be tested is prevented from bending laterally during the pressing process, thereby ensuring that the spring to be tested will not bend or deform laterally during the test.

[0005] To solve the above-mentioned technical problems, this utility model provides a spring force measuring and positioning auxiliary tooling, comprising:

[0006] The base has a sleeve-shaped structure and a guide ring on the inner side of its top.

[0007] The positioning node sleeve is placed on the top outer side of the base to adjust the downward movement node of the pressure rod;

[0008] A pressure rod with a pressure plate at its top end, the lower end of which is inserted into the cavity of the base;

[0009] The spring to be tested is sleeved on the lower pressure rod, with the upper end of the spring to be tested abutting against the lower pressure plate and the lower end abutting against the top of the base, while ensuring that the lower end of the spring to be tested is sleeved on the guide ring.

[0010] Preferably, the lower end of the base also includes an integrally formed placement tray.

[0011] Preferably, the inner diameter of the guide ring is the same as the inner diameter of the base.

[0012] Preferably, the pressure rod and the base are inserted with a gap.

[0013] Preferably, the positioning node sleeve is provided with different lengths, including 20cm, 25cm, 30cm and 35cm.

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] This invention uses a guide ring to initially limit the lower end of the spring to be tested, and a pressure rod design to ensure lateral anti-bending of the spring during the pressing process, thus preventing the spring from bending or deforming laterally during testing. Furthermore, a positioning node sleeve is placed on the top outer side of the base before testing to adjust the downward movement of the pressure rod, preventing excessive downward displacement and ensuring measurement accuracy. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of a spring force measuring and positioning auxiliary tooling for assembling a positioning node sleeve according to this utility model.

[0017] Figure 2 This is a cross-sectional view of a spring force measuring and positioning auxiliary tooling according to this utility model when assembling the spring to be measured.

[0018] In the figure: 1-base, 11-guide ring, 12-placement plate, 2-positioning node sleeve, 3-pressure rod, 31-pressure plate, 4-spring to be tested. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0020] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a spring force measuring and positioning auxiliary tooling, including:

[0021] The base 1 is a sleeve-type structure, and a guide ring 11 is provided on the inner side of its top, which is used to initially limit the lower end of the placed spring component to be tested.

[0022] The positioning node sleeve 2 is placed on the top outer side of the base 1 to adjust the downward movement node of the pressure rod 3. Specifically, before testing the spring 4 to be tested, this positioning node sleeve 2 is placed on the top of the base 1, and then the pressure rod 3 is driven down by an external drive mechanism until the pressure plate 31 abuts against the top of the positioning node sleeve 2. At this time, the downward movement node position of the pressure rod 3 is locked (the locking structure can be: the upper end of the pressure plate 31 is slidably connected to the linear guide rail on the external drive mechanism through a connector, and several linear positioning holes are opened on the linear guide rail. By inserting the positioning pin into the positioning holes at different heights, the bottom of the connector is blocked, thereby completing the locking process of the downward movement node. The above-mentioned external drive mechanism can be a manual pressure structure or a pneumatic pressure structure). This is used to lock the point when testing the spring 4 to be tested later, so as to avoid exceeding the value of the point when pressing down and causing test errors.

[0023] The lower pressure rod 3 has a lower pressure plate 31 at its top. The lower end of the lower pressure rod 3 is inserted into the cavity of the base 1. When the spring 4 to be tested is pressed down, the lower end of the lower pressure rod 3 can extend into the cavity of the base 1, thereby avoiding interference.

[0024] The spring component 4 to be tested is sleeved on the lower pressure rod 3, with the upper end of the spring component 4 abutting against the lower pressure plate 31 and the lower end abutting against the top of the base 1, while ensuring that the lower end of the spring component 4 to be tested is sleeved on the guide ring 11.

[0025] The lower end of the base 1 also includes an integrally molded placement plate 12, which can enhance the stability of the base 1 when placed on an external workbench. The bottom of the placement plate 12 can abut against an external disc-type pressure sensor to detect the pressure value when the spring is compressed.

[0026] The inner diameter of the guide ring 11 is the same as the inner diameter of the base 1.

[0027] The pressure rod 3 is inserted with a gap between it and the base 1.

[0028] The positioning node sleeve 2 is available in different lengths, including 20cm, 25cm, 30cm, and 35cm. For example, assuming the spring to be tested 4 is compressed to a length of 20cm, the 20cm positioning node sleeve 2 is first placed on the base 1. Then, the external drive mechanism is activated, driving the pressure plate 31 on the pressure rod 3 to abut against the top of the positioning node sleeve 2. The node point is then locked using a locking structure, i.e., a positioning pin is inserted into the positioning hole at the corresponding height of the node point. Afterward, the positioning node sleeve 2 is removed, the spring to be tested 4 is placed on the base 1, and the pressure rod 3 is driven down until it reaches the 20cm locking point. The pressure value corresponding to the compression of the spring to be tested 4 to a length of 20cm is then measured.

[0029] This utility model also includes the following usage process:

[0030] First, the spring component 4 to be tested is placed on the guide ring 11. Then, the pressure rod 3 is driven by the external drive mechanism to move down to the locking point of the node. The pressure plate 31 is used to test the pressure of the spring component 4 under test, and the pressure value of the spring under pressure is detected by the external pressure sensor.

[0031] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A spring force measuring and positioning auxiliary tooling, characterized in that, include: The base (1) is a sleeve-type structure, and a guide ring (11) is provided on the inner side of its top; The positioning node sleeve (2) is placed on the top outer side of the base (1) to adjust the downward movement node of the pressure rod (3); The lower pressure rod (3) has a lower pressure plate (31) at its top end, and the lower end of the lower pressure rod (3) is inserted into the cavity of the base (1); The spring to be tested (4) is sleeved on the lower pressure rod (3), and the upper end of the spring to be tested (4) abuts against the lower pressure plate (31), and the lower end abuts against the top of the base (1), while ensuring that the lower end of the spring to be tested (4) is sleeved on the guide ring (11).

2. The spring force measuring and positioning auxiliary tooling as described in claim 1, characterized in that, The lower end of the base (1) also includes an integrally formed placement tray (12).

3. The spring force measuring and positioning auxiliary tooling as described in claim 1, characterized in that, The inner diameter of the guide ring (11) is the same as the inner diameter of the base (1).

4. The spring force measuring and positioning auxiliary tooling as described in claim 1, characterized in that, The pressure rod (3) is inserted with a gap between it and the base (1).

5. A spring force measuring and positioning auxiliary tooling as described in any one of claims 1 to 4, characterized in that, The positioning node sleeve (2) is provided with different lengths, including 20cm, 25cm, 30cm and 35cm.

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