Spring profiled end ring comprehensive inspection regulation

Abstract

The utility model relates to a spring special-shaped end ring comprehensive detection rule belongs to spring detection technical field, including outer cylinder and inner cylinder, and the bottom surface support part is clamped between outer cylinder and inner cylinder, and the first end of bottom surface support part is equipped with the end location surface, and the end location surface is as spring location reference, the inner wall of outer cylinder, the outer wall of inner cylinder are all equal diameter and variable diameter composite curved surface structure, the inner wall of outer cylinder includes outer cylinder equal diameter curved surface and outer cylinder variable diameter curved surface, and the outer wall of inner cylinder includes inner cylinder equal diameter curved surface and inner cylinder variable diameter curved surface, and the upper portion of outer cylinder is equipped with the lifting cambered surface, the utility model discloses simple operation, and ordinary operator can complete the detection fast, can detect multiple sizes synchronously, greatly shorten the detection time, satisfy the production line batch detection demand, the utility model discloses unified detection reference, guarantees product size and shape consistency, and the manufacturing cost is low, and the adaptability is strong, is not affected by conventional detection environment.

Description

Technical Field

[0001] This utility model relates to a comprehensive inspection standard for irregularly shaped spring end rings, belonging to the field of spring testing technology. Background Technology

[0002] The suspension system (also known as the suspension system) is the collective term for all force transmission, damping, and guiding devices between the car frame and the wheels. It is a core chassis component that determines a car's comfort, handling, and safety. Suspension springs, as a key component of the car's suspension system, are in extremely high demand. Due to differences in suspension system design among different automakers, suspension springs are often irregularly shaped, with their end rings simultaneously comprising a constant-diameter section, a transition section, and a lead section. The dimensions and shape of these irregularly shaped end rings directly affect the spring's assembly accuracy and operational safety.

[0003] Existing spring end ring inspection methods have the following obvious defects:

[0004] 1. When using general measuring tools such as calipers and micrometers for inspection, the inspection time for a single piece exceeds 30 seconds, which is inefficient and requires high skills from operators. The batch inspection also results in poor dimensional consistency.

[0005] 2. Existing dedicated inspection rules have problems such as complex structure, high manufacturing cost, ability to inspect only a single size, poor adaptability, and measurement accuracy is easily affected by environmental interference, which cannot meet the high-speed, high-precision, and low-cost batch inspection requirements of automobile production lines. Utility Model Content

[0006] Based on the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a comprehensive inspection gauge for irregularly shaped spring end rings, so as to realize the synchronous, rapid and accurate detection of the inner / outer diameter of the equal diameter portion, the inner / outer diameter of the transition portion, and the lead of the transition ring of irregularly shaped spring end rings, and overcome the defects of existing inspection tools such as low efficiency, poor accuracy and inability to detect multiple indicators simultaneously.

[0007] The spring irregular end ring comprehensive inspection gauge described in this utility model includes an outer cylinder and an inner cylinder. A bottom support part is sandwiched between the outer cylinder and the inner cylinder. The first end of the bottom support part is provided with an end positioning surface, which serves as a spring positioning reference and is used to fit with the end of the spring irregular end ring.

[0008] Both the inner wall of the outer cylinder and the outer wall of the inner cylinder are composite curved surface structures of constant diameter and variable diameter; the inner wall of the outer cylinder includes a constant diameter curved surface and a variable diameter curved surface of the outer cylinder, and the outer wall of the inner cylinder includes a constant diameter curved surface and a variable diameter curved surface of the inner cylinder.

[0009] The outer cylinder constant diameter curved surface is used to detect the outer diameter of the spring irregular end ring with equal diameter, the inner cylinder constant diameter curved surface is used to detect the inner diameter of the spring irregular end ring with equal diameter, the outer cylinder variable diameter curved surface is used to detect the outer diameter of the spring irregular end ring transition ring, and the inner cylinder variable diameter curved surface is used to detect the inner diameter of the spring irregular end ring transition ring.

[0010] The upper part of the outer cylinder is provided with a lifting arc surface. The height of the lifting arc surface matches the lead of the qualified spring transition coil, which is used to determine whether the lead of the spring transition coil is qualified.

[0011] Preferably, the bottom support portion includes an arc-shaped plane and a spiral rising surface. The arc-shaped plane is used to fit with the diameter portion of the irregularly shaped end ring of the spring, and the spiral rising surface is a rising spiral curved surface.

[0012] Furthermore, the end positioning surface is perpendicular to the arc-shaped plane, and the end positioning surface is coplanar with the starting elevation of the raised arc surface.

[0013] Preferably, the bottom support portion has a through hole machined at its center for fixing.

[0014] Preferably, the interface between the outer cylinder constant diameter curved surface and the outer cylinder variable diameter curved surface is the plane where the end positioning surface is located, and the interface between the inner cylinder constant diameter curved surface and the inner cylinder variable diameter curved surface is also the plane where the end positioning surface is located.

[0015] The advantages of this utility model compared with the prior art are:

[0016] 1. This utility model is easy to operate, requires no professional skills, and can be quickly completed by ordinary operators;

[0017] 2. This utility model can simultaneously detect multiple dimensions, significantly shortening the detection time and meeting the batch detection needs of the production line;

[0018] 3. This utility model adopts a unified testing standard to ensure the consistency of size and shape of batch products;

[0019] 4. This utility model is integrally molded, has low manufacturing cost, strong adaptability, and is not affected by conventional testing environments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram showing the state of this utility model in use;

[0021] Figure 2 This is one of the structural schematic diagrams of this utility model;

[0022] Figure 3 This is the second structural schematic diagram of this utility model.

[0023] In the diagram: 1. Spring; 2. Outer cylinder; 21. Lifting arc surface; 22. Variable diameter outer cylinder surface; 23. Constant diameter outer cylinder surface; 3. Inner cylinder; 31. Constant diameter inner cylinder surface; 32. Variable diameter inner cylinder surface; 4. End positioning surface; 5. Through hole; 6. Bottom support; 61. Spiral rising surface; 62. Arc-shaped plane. Detailed Implementation

[0024] The present invention will be further described below with reference to specific embodiments.

[0025] like Figure 1-3 As shown, this embodiment is achieved through the following technical solution: it includes an outer cylinder 2 and an inner cylinder 3, with a bottom support 6 sandwiched between the outer cylinder 2 and the inner cylinder 3. The first end of the bottom support 6 is provided with an end positioning surface 4, which serves as a spring positioning reference and is used to fit with the end of the irregularly shaped spring end ring. The inner wall of the outer cylinder 2 and the outer wall of the inner cylinder 3 are both composite curved surface structures with equal diameter and variable diameter. The inner wall of the outer cylinder 2 includes an outer cylinder equal diameter curved surface 23 and an outer cylinder variable diameter curved surface 22, and the outer wall of the inner cylinder 3 includes an inner cylinder equal diameter curved surface 31 and an inner cylinder variable diameter curved surface 32.

[0026] The outer cylinder constant diameter curved surface 23 is used to detect the outer diameter of the spring irregular end ring constant diameter portion, the inner cylinder constant diameter curved surface 31 is used to detect the inner diameter of the spring irregular end ring constant diameter portion, the outer cylinder variable diameter curved surface 22 is used to detect the outer diameter of the spring irregular end ring transition ring, and the inner cylinder variable diameter curved surface 32 is used to detect the inner diameter of the spring irregular end ring transition ring; the upper part of the outer cylinder 2 is provided with a lifting arc surface 21, the height of which matches the lead of the qualified spring transition ring, and is used to determine whether the lead of the spring transition ring is qualified.

[0027] In this embodiment, the bottom support portion 6 includes an arc-shaped plane 62 and a spiral rising surface 61. The arc-shaped plane 62 can fit into the diameter portion of the irregularly shaped end ring of the spring, and the spiral rising surface 61 is a rising spiral curved surface. The end positioning surface 4 is perpendicular to the arc-shaped plane 62, and the end positioning surface 4 is coplanar with the starting elevation of the lifting arc surface 21. The bottom support portion 6 has a through hole 5 machined at its center for fixing. The interface between the outer cylinder constant diameter curved surface 23 and the outer cylinder variable diameter curved surface 22 is the plane where the end positioning surface 4 is located, and the interface between the inner cylinder constant diameter curved surface 31 and the inner cylinder variable diameter curved surface 32 is also the plane where the end positioning surface 4 is located.

[0028] The method of using this utility model is as follows:

[0029] 1. Place the irregularly shaped end ring of the spring 1 to be tested into the device with the end ring facing down, so that the end of the spring 1 is in contact with the end positioning surface 4, and observe whether the spring 1 can be put in smoothly.

[0030] 2. If it can be inserted smoothly without excessive gaps, then all inner and outer diameters of spring 1 are deemed to be qualified; otherwise, at least one of the outer or inner diameters of the irregular end ring and the transition ring of the irregular end ring of spring 1 is deemed to be unqualified, and the spring is deemed to be unqualified.

[0031] 3. After all the inner and outer diameters of spring 1 are deemed to be qualified, observe whether the spring transition coil is higher than the lifting arc surface 21. If it is higher, the lead of the spring transition coil is deemed unqualified; if it is not higher, all the dimensions of spring 1 are qualified.

Claims

1. A comprehensive inspection standard for irregularly shaped spring end rings, characterized in that, It includes an outer cylinder (2) and an inner cylinder (3), with a bottom support part (6) sandwiched between the outer cylinder (2) and the inner cylinder (3). The bottom support part (6) has an end positioning surface (4) at its first end, which serves as a spring positioning reference. The inner wall of the outer cylinder (2) and the outer wall of the inner cylinder (3) are both composite curved surface structures with equal diameter and variable diameter; the inner wall of the outer cylinder (2) includes the outer cylinder equal diameter curved surface (23) and the outer cylinder variable diameter curved surface (22), and the outer wall of the inner cylinder (3) includes the inner cylinder equal diameter curved surface (31) and the inner cylinder variable diameter curved surface (32); The upper part of the outer cylinder (2) is provided with a lifting arc surface (21), and the height of the lifting arc surface (21) matches the lead of the qualified spring transition coil.

2. The comprehensive inspection standard for irregularly shaped spring end rings according to claim 1, characterized in that, The bottom support part (6) includes an arc-shaped plane (62) and a spiral rising surface (61). The arc-shaped plane (62) is used to fit with the diameter part of the spring irregular end ring, and the spiral rising surface (61) is a rising spiral curved surface.

3. The comprehensive inspection standard for irregularly shaped spring end rings according to claim 2, characterized in that, The end positioning surface (4) is perpendicular to the arc plane (62), and the end positioning surface (4) is coplanar with the starting elevation of the lifting arc surface (21).

4. The comprehensive inspection standard for irregularly shaped spring end rings according to claim 2, characterized in that, The bottom support part (6) has a through hole (5) machined in the center for fixing.

5. The comprehensive inspection standard for irregularly shaped spring end rings according to claim 1, characterized in that, The interface between the outer cylinder constant diameter curved surface (23) and the outer cylinder variable diameter curved surface (22) is the plane where the end positioning surface (4) is located. The interface between the inner cylinder constant diameter curved surface (31) and the inner cylinder variable diameter curved surface (32) is also the plane where the end positioning surface (4) is located.

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