Torsion spring height rapid testing fixture

Abstract

The utility model relates to a torsion spring height rapid testing fixture, which belongs to the technical field of spring detection and comprises a V-shaped seat, one end of the V-shaped seat is connected with a step baffle, the other end of the V-shaped seat is connected with a flat baffle, and the V-shaped seat and the flat baffle are both used for positioning a torsion spring. The step baffle plate is provided with a height qualified interval surface used for detecting the height of the torsion spring. The step baffle is provided with a height lower limit surface and a height upper limit surface, and the height qualified interval surface is located between the height lower limit surface and the height upper limit surface; according to the torsion spring height rapid testing fixture, the torsion spring is tightly attached to the V-shaped seat and the flat baffle plate, the torsion spring is positioned, and whether the height of the torsion spring is qualified or not is judged by observing whether the outermost point of the end part of the torsion spring is in a height qualified interval surface or not; the torsion spring height detection device can quickly detect the height of the torsion spring, rejects the torsion spring with unqualified height, improves the detection efficiency, and prevents unqualified products from flowing out.

Description

Technical Field

[0001] The utility model relates to a quick height detection tool for a torsion spring, belonging to the technical field of spring detection. Background Art

[0002] Torsion spring is a common mechanical spring that stores and releases energy by generating elastic potential energy through twisting. Torsion springs are widely used in automobile manufacturing, electronic equipment, and industrial machinery.

[0003] The height of the torsion spring is a relatively important dimension. The height will affect the assembly performance at the customer's site, so the height of the torsion spring needs to be tested before leaving the factory. At present, the height of the torsion spring is mainly measured by image measuring instruments, vernier calipers and other testing equipment. However, when this testing method is applied to large-scale testing, the efficiency is very low, which seriously affects the delivery rate of the product. Utility Model Content

[0004] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a torsion spring height rapid inspection tool, which can quickly detect the height of the torsion spring, eliminate torsion springs with unqualified height, and improve the inspection efficiency.

[0005] The utility model discloses a quick height inspection tool for torsion springs, comprising a V-shaped seat, one end of which is connected to a step baffle plate, and the other end of which is connected to a flat baffle plate. Both the V-shaped seat and the flat baffle plate are used to position the torsion spring. A height qualified interval surface for detecting the height of the torsion spring is provided on the step baffle plate.

[0006] The technical solution of the utility model is to provide a torsion spring height rapid inspection tool. During inspection, the outer contour of the spring coil of the torsion spring is made to be close to the V-shaped seat, and the outermost point of one end of the torsion spring is made to be close to the flat baffle plate to position the torsion spring. Whether the height of the torsion spring is qualified is judged by observing whether the outermost point of the other end of the torsion spring is within the height qualified range surface.

[0007] Preferably, the step baffle is provided with a lower height limit surface and an upper height limit surface, and the qualified height interval surface is located between the lower height limit surface and the upper height limit surface; the lower height limit surface and the upper height limit surface are both parallel to the spring contact surface of the flat baffle, and the distance from the lower height limit surface to the spring contact surface of the flat baffle is equal to the lower limit height dimension of the qualified torsion spring, and the distance from the upper height limit surface to the spring contact surface of the flat baffle is equal to the upper limit height dimension of the qualified torsion spring.

[0008] Preferably, the included angle between the two inclined surfaces of the V-shaped seat is 90 degrees, and a process groove is provided at the junction of the two inclined surfaces on the V-shaped seat to facilitate right-angle processing.

[0009] Preferably, a notch is provided on the contact surface between the V-shaped seat and the step baffle to avoid the lower height limit surface of the step baffle.

[0010] Preferably, the V-shaped seat is connected to the flat baffle and the step baffle by bolts.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The torsion spring height rapid inspection tool disclosed in the utility model positions the torsion spring by making it close to the V-shaped seat and the flat baffle plate, and determines whether the height of the torsion spring is qualified by observing whether the outermost point of the end of the torsion spring is within the qualified height range surface. The utility model can quickly detect the height of the torsion spring, eliminate torsion springs with unqualified height, improve the inspection efficiency, and prevent the outflow of unqualified products. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a three-dimensional diagram of the V-shaped seat;

[0015] Figure 3 It is a three-dimensional diagram of the step baffle;

[0016] Figure 4 It is a schematic diagram of the state when the utility model is in use.

[0017] In the figure: 1. flat baffle; 2. V-shaped seat; 21. inclined surface; 22. process groove; 3. step baffle; 31. lower height limit surface; 32. qualified height interval surface; 33. upper height limit surface; 4. bolt; 5. torsion spring. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with specific embodiments.

[0019] However, the description of the present invention is merely an embodiment of structural and even functional description, and the scope of rights of the present invention is not limited by the embodiments described in the text.

[0020] For example, multiple embodiments may have multiple changes and multiple forms, and it should be understood that the scope of rights of the present utility model includes equivalents that can realize the technical idea.

[0021] like Figures 1 to 4 As shown, this embodiment is implemented through the following technical scheme: it includes a V-shaped seat 2, one end of the V-shaped seat 2 is connected to a step baffle 3, and the other end of the V-shaped seat 2 is connected to a flat baffle 1, and the V-shaped seat 2 and the flat baffle 1 are both used to position the torsion spring; the step baffle 3 is provided with a height qualified interval surface 32 for detecting the height of the torsion spring.

[0022] In this embodiment, a lower height limit surface 31 and an upper height limit surface 33 are provided on the step baffle plate 3, and the qualified height interval surface 32 is located between the lower height limit surface 31 and the upper height limit surface 33; the lower height limit surface 31 and the upper height limit surface 33 are both parallel to the spring contact surface of the flat baffle plate 1, and the distance from the lower height limit surface 31 to the spring contact surface of the flat baffle plate 1 is equal to the lower limit height dimension of the qualified torsion spring, and the distance from the upper height limit surface 33 to the spring contact surface of the flat baffle plate 1 is equal to the upper limit height dimension of the qualified torsion spring.

[0023] The angle between the two inclined surfaces 21 of the V-shaped seat 2 is 90 degrees. A process groove 22 is provided at the junction of the two inclined surfaces 21 on the V-shaped seat 2 to facilitate right-angle processing. A notch is provided on the contact surface between the V-shaped seat 2 and the step baffle 3 to avoid the lower height limit surface of the step baffle 3. The V-shaped seat 2 is connected to the flat baffle 1 and the step baffle 3 by bolts 4.

[0024] The method of using the utility model is:

[0025] Put the torsion spring 5 to be tested into the inspection fixture. When the outer contour of the spring coil of the torsion spring 5 is in close contact with the two inclined surfaces 21 of the V-shaped seat, and the outermost point of one end of the torsion spring 5 is in close contact with the flat baffle 1, if the outermost point of the other end of the torsion spring 5 can be blocked by the height qualified interval surface 32 between the height lower limit surface 31 and the height upper limit surface 33, the height of the torsion spring is judged to be qualified; if the torsion spring 5 cannot be blocked, it is judged to be unqualified because the height exceeds the lower limit;

[0026] If the torsion spring 5 cannot be placed between the inner side surface of the flat baffle 1 and the height upper limit surface 33, or the torsion spring 5 can be placed but the outer contour of the spring coil cannot be tightly attached to the two inclined surfaces 21 of the V-shaped seat, it is judged as exceeding the upper limit and unqualified.

[0027] Of course, the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and any equivalent changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention shall fall within the scope of the patent coverage of the present invention.

Claims

1. A quick torsion spring height tester, characterized in that: The invention comprises a V-shaped seat (2), one end of the V-shaped seat (2) is connected to a step baffle (3), the other end of the V-shaped seat (2) is connected to a flat baffle (1), and both the V-shaped seat (2) and the flat baffle (1) are used to position the torsion spring; a height qualified interval surface (32) for detecting the height of the torsion spring is provided on the step baffle (3); The step baffle (3) is provided with a lower height limit surface (31) and an upper height limit surface (33), and the qualified height interval surface (32) is located between the lower height limit surface (31) and the upper height limit surface (33).

2. The torsion spring height quick test fixture according to claim 1 is characterized in that: The lower height limit surface (31) and the upper height limit surface (33) are both parallel to the spring contact surface of the flat baffle (1); the distance from the lower height limit surface (31) to the spring contact surface of the flat baffle (1) is equal to the lower limit height dimension of a qualified torsion spring; and the distance from the upper height limit surface (33) to the spring contact surface of the flat baffle (1) is equal to the upper limit height dimension of a qualified torsion spring.

3. The torsion spring height quick test fixture according to claim 1 is characterized in that: The included angle between the two inclined surfaces (21) of the V-shaped seat (2) is 90 degrees, and a process groove (22) is provided at the junction of the two inclined surfaces (21) on the V-shaped seat for easy processing.

4. The torsion spring height quick test fixture according to claim 1 is characterized in that: A notch for avoiding the lower height limit surface (31) is provided on the contact surface between the V-shaped seat (2) and the step baffle (3).

5. The torsion spring height quick test fixture according to claim 4, characterized in that: The V-shaped seat (2) is connected to the flat baffle (1) and the step baffle (3) via bolts (4).

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