Auxiliary testing device for elastic force of spring

Abstract

The utility model relates to an auxiliary testing device for the elasticity of a spring, which comprises a sleeve assembly and a pressing rod assembly, the sleeve assembly is arranged on an upper pressing disc, and the pressing rod assembly is arranged on a lower pressing disc; the sleeve assembly comprises a sleeve and a sleeve seat, the sleeve is a hollow cylinder, the bottom of the sleeve is connected with the sleeve seat, the sleeve is vertically arranged on the sleeve seat, and the central axis of the sleeve coincides with the central axis of the sleeve seat; the pressing rod assembly comprises a pressing rod and a pressing plate, the top end of the pressing rod is vertically connected with a supporting plate, and the bottom end of the pressing rod is vertically connected with the pressing plate; the top end of the pressing rod is vertically connected with the upper pressing disc through a supporting plate; the upper pressure plate is arranged right above the lower pressure plate, and the upper pressure plate can move towards the lower pressure plate through a driving mechanism so as to drive the pressure rod to move up and down into the sleeve; a to-be-tested spring is arranged in the sleeve. According to the utility model, the accuracy of a test result is improved, and potential safety hazards in a test process are eliminated; the utility model has the advantages of simple structure and strong generality.

Description

Technical Field

[0001] The utility model relates to the technical field of spring inspection, in particular to an auxiliary inspection device for spring elasticity. Background Art

[0002] After the spring is produced, it needs to pass strict tests before being put into use, because most springs are the main components used in machinery and vehicles. For example, the springs on vehicles, if the springs installed on the vehicle are not strictly tested and are randomly installed on the vehicle for use, and their performance does not meet the requirements, it is easy to cause very serious consequences; and another example is the springs used for shock absorption. Due to the decline of performance, the vehicle loses balance and is prone to traffic accidents. The main function of a spring testing machine is to conduct strength tests and analyses on the tensile force, pressure, displacement, stiffness, etc. of the spring.

[0003] When inspecting large-sized springs with a diameter greater than 50 mm and a height greater than 200 mm, due to their large size and large elasticity, the spring is prone to bending during the test. As the deformation amount increases, the spring may pop out of the inspection equipment, which not only affects the test results but also poses a safety hazard. Currently, in the industry, for such large-sized springs, customized elasticity detection equipment is generally used. A guide post needs to be installed in the center of the detection equipment, and the size of the guide post directly determines the size of the spring that can be tested. If the spring size does not match, it needs to be customized separately. Therefore, the applicable range of such spring detection equipment is small and the cost is high. Summary of the Invention

[0004] The purpose of the utility model is to overcome the above deficiencies and provide an auxiliary inspection device for spring elasticity to prevent the spring from bending during the test.

[0005] The purpose of the utility model is realized as follows:

[0006] An auxiliary inspection device for spring elasticity, which includes a sleeve assembly and a pressure rod assembly. The sleeve assembly is arranged on the upper pressing plate, and the pressure rod assembly is arranged on the lower pressing plate;

[0007] The sleeve assembly includes a sleeve and a sleeve seat. The sleeve is a hollow cylinder, the bottom of the sleeve is connected to the sleeve seat, the sleeve is vertically arranged on the sleeve seat, and the central axis of the sleeve coincides with the central axis of the sleeve seat;

[0008] The pressure rod assembly includes a pressure rod and a pressing plate. A support plate is vertically connected to the top end of the pressure rod, and a pressing plate is vertically connected to the bottom end of the pressure rod; the support plate is arranged on the bottom surface of the upper pressing plate, so that the top end of the pressure rod is vertically connected to the upper pressing plate through the support plate; the central axes of the pressure rod, the pressing plate and the upper pressing plate coincide;

[0009] The upper pressure plate is arranged directly above the lower pressure plate, and the upper pressure plate can move downward relative to the lower pressure plate through a driving mechanism, thereby driving the pressure rod to move up and down within the sleeve; a spring to be inspected is arranged within the sleeve.

[0010] The outer diameter of the pressure plate matches the inner diameter of the sleeve, such that when the pressure rod moves downward, it drives the pressure plate to align with the center of the sleeve and descend within the sleeve, compressing the spring.

[0011] Furthermore, at least two symmetrically arranged reinforcing ribs are provided on the outer wall of the sleeve.

[0012] Furthermore, the reinforcing ribs are in the shape of right-angled triangles, and their bottoms are connected to the sleeve base.

[0013] Furthermore, the edge of the sleeve base is fixed to the upper pressure plate by bolts.

[0014] Furthermore, the edge of the support plate is fixed to the upper pressure plate by bolts.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] The present utility model provides an auxiliary inspection device for the elastic force of a spring. The bending during the spring compression process is restricted by the sleeve, improving the accuracy of the test results and eliminating potential safety hazards during the test; the structure of the present utility model is simple, has strong versatility, low manufacturing cost, and is convenient, accurate, and fast for inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model.

[0018] Figure 2 is a cross-sectional view of the sleeve assembly of the present utility model.

[0019] Figure 3 is a top view of the sleeve assembly of the present utility model.

[0020] Figure 4 is a cross-sectional view of the pressure rod assembly of the present utility model.

[0021] Figure 5 is a top view of the pressure rod assembly of the present utility model.

[0022] Wherein:

[0023] upper pressure plate 1, support plate 2, pressure rod 3, pressure plate 4, lower pressure plate 5, sleeve 6, sleeve base 7, reinforcing rib 8. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To better understand the technical solution of the present utility model, the following will be described in detail in conjunction with relevant drawings. It should be understood that the following specific embodiments are not intended to limit the specific implementation aspects of the technical solution of the present utility model, and they are only implementation aspects that can be adopted by the technical solution of the present utility model. It should be noted first that the expressions regarding the positional relationships of various components herein, such as component A is located above component B, are based on the relative positions of the components in the drawings and are not intended to limit the actual positional relationships of the components. Embodiment 1

[0025] See Figures 1 - 5 , Figure 1 a structural schematic diagram of an auxiliary inspection device for the spring elastic force of the present utility model is drawn. As shown in the figure, an auxiliary inspection device for the spring elastic force includes a sleeve assembly and a pressure rod assembly. The sleeve assembly is arranged on the upper pressure plate 1, and the pressure rod assembly is arranged on the lower pressure plate 5. The upper pressure plate 1 and the lower pressure plate 5 are arranged on a spring testing machine.

[0026] The sleeve assembly includes a sleeve 6 and a sleeve seat 7. The sleeve 6 is a hollow cylinder. The bottom of the sleeve 6 is connected to the sleeve seat 7. The sleeve 6 is vertically arranged on the sleeve seat 7. The central axis of the sleeve 6 coincides with the central axis of the sleeve seat 7. The edge of the sleeve seat 7 is fixed on the upper pressure plate 1 by bolts;

[0027] At least two symmetrically arranged reinforcing ribs 8 are provided on the outer wall of the sleeve 6. The reinforcing ribs 8 are in the shape of a right triangle, and its bottom is connected to the sleeve seat 7.

[0028] The pressure rod assembly includes a pressure rod 3 and a pressure plate 4. A support plate 2 is vertically connected to the top end of the pressure rod 3, and a pressure plate 4 is vertically connected to the bottom end of the pressure rod 3; The support plate 2 is arranged on the bottom surface of the upper pressure plate 1. Thus, the top end of the pressure rod 3 is vertically connected to the upper pressure plate 1 through the support plate 2; The central axes of the pressure rod 3, the pressure plate 4, and the pressure plate 4 all coincide with the central axis of the upper pressure plate 1;

[0029] The edge of the support plate 2 is fixed on the upper pressure plate 1 by bolts.

[0030] The upper pressure plate 1 is arranged directly above the lower pressure plate 5, and the upper pressure plate 1 can move downward toward the lower pressure plate 5 through a driving mechanism, thereby driving the pressure rod 3 to move up and down in the sleeve 6; A spring to be inspected is arranged in the sleeve 6;

[0031] The outer diameter of the pressure plate 4 matches the inner diameter of the sleeve 6, so that when the pressure rod 3 presses down, it drives the pressure plate 4 to align with the center of the sleeve 6 and descend in the sleeve 6 to compress the spring.

[0032] Working principle:

[0033] The utility model provides an auxiliary inspection device for spring elasticity, which can be applied to a spring testing machine. The sleeve seat is welded to the bottom of the sleeve. The sleeve is fixed on the lower pressing plate of the spring testing machine with bolts. Then, the spring is placed in the center of the sleeve. Finally, the pressing rod is fixed on the upper pressing plate of the spring testing machine with bolts, so that the pressing rod is directly opposite to the center of the sleeve. Finally, the spring testing machine is started, the pressing rod descends, compresses the spring, and conducts detection. The spring is restricted by the sleeve, avoiding bending during the testing process.

[0034] The above are only specific application examples of the utility model, which do not constitute any limitation to the protection scope of the utility model. Any technical solutions formed by equivalent transformation or equivalent substitution fall within the scope of the utility model's protection rights.

Claims

1. A spring force auxiliary inspection device, characterized in that: It comprises a sleeve assembly and a pressure rod assembly, wherein the sleeve assembly is arranged on an upper pressure plate (1), and the pressure rod assembly is arranged on a lower pressure plate (5); The sleeve assembly comprises a sleeve (6) and a sleeve seat (7); the sleeve (6) is a hollow cylinder; the bottom of the sleeve (6) is connected to the sleeve seat (7); the sleeve (6) is vertically arranged on the sleeve seat (7); the central axis of the sleeve (6) coincides with the central axis of the sleeve seat (7); The pressure rod assembly comprises a pressure rod (3) and a pressure plate (4); the top end of the pressure rod (3) is vertically connected to a support plate (2), and the bottom end of the pressure rod (3) is vertically connected to a pressure plate (4); the support plate (2) is arranged on the bottom surface of the upper pressure plate (1), so that the top end of the pressure rod (3) is vertically connected to the upper pressure plate (1) through the support plate (2); the center axis of the pressure rod (3), the pressure plate (4) and the pressure plate (4) all coincide with the center axis of the upper pressure plate (1); The upper pressure plate (1) is arranged directly above the lower pressure plate (5), and the upper pressure plate (1) can move toward the lower pressure plate (5) through a driving mechanism, thereby driving the pressure rod (3) to move up and down in the sleeve (6); a spring to be tested is arranged in the sleeve (6); The outer diameter of the pressure plate (4) matches the inner diameter of the sleeve (6), so that when the pressure rod (3) is pressed downward, the pressure plate 4 is driven to align with the center of the sleeve (6) and descend inside the sleeve (6), thereby compressing the spring.

2. The auxiliary inspection device for spring elastic force according to claim 1, characterized in that: The outer wall of the sleeve (6) is provided with at least two symmetrically arranged reinforcing ribs (8).

3. The auxiliary inspection device for spring force according to claim 2, characterized in that: The reinforcing rib (8) is in the shape of a right triangle, and its bottom is connected to the sleeve seat (7).

4. The auxiliary inspection device for spring force according to claim 1, characterized in that: The edge of the sleeve seat (7) is fixed to the upper pressure plate (1) by means of bolts.

5. The auxiliary inspection device for spring force according to claim 1, characterized in that: The edge of the support plate (2) is fixed to the upper pressure plate (1) by means of bolts.

Images