A diaphragm spring load testing device

Abstract

The utility model discloses a diaphragm spring load testing arrangement relates to diaphragm spring field, including upper die and the lower die of setting in the lower side of upper die, the upper die includes upper outer pressure ring, and the one end of upper outer pressure ring towards the lower die detachable installation upper inner pressure ring, and the end surface of upper inner pressure ring and upper outer pressure ring contact inserts and installs upper steel ball, the lower die includes lower outer pressure ring, and the one end of lower outer pressure ring towards the upper die detachable installation lower inner pressure ring, and the end surface of lower inner pressure ring and lower outer pressure ring contact inserts and installs lower steel ball, and the part of measurement is placed on the lower die, and through lower steel ball and the lower surface contact of part of measurement, when the upper die is pressed, and upper steel ball and the upper surface contact of part of measurement and exert load. The utility model discloses the structure of combination, fulcrum adopts the inlaying type of steel ball, and steel ball can be replaced after wearing, just greatly reduced the manufacturing cost of clamp, and this solves the problem that the original fulcrum hardness is too high or too low.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm springs, and more specifically to a diaphragm spring load testing device. Background Technology

[0002] In the production process of diaphragm springs, load characteristics testing is necessary to ensure that the load capacity meets design requirements. Existing test fixtures are all integral, which presents certain difficulties in fixture manufacturing and increases costs. If the fixture support point hardness is too high, it can easily cause scratches on the diaphragm spring and make machining difficult; if the fixture support point hardness is too low, it will cause premature wear and a short service life. Especially with the current higher quality requirements for diaphragm springs, the frequency of diaphragm spring testing has increased, thus placing higher demands on the service life of the fixtures. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a diaphragm spring load testing device. It adopts a combined structure and the fulcrum is made of steel ball inlay. The steel ball can be replaced after it wears out, which greatly reduces the manufacturing cost of the fixture. This solves the problem of the original fulcrum being too hard or too soft.

[0004] The purpose of this utility model is achieved through the following technical solution: This diaphragm spring load testing device includes an upper mold and a lower mold disposed below the upper mold; The upper mold includes an upper outer pressure ring, an upper inner pressure ring is detachably installed at one end of the upper outer pressure ring facing the lower mold, and a steel ball is embedded and installed at the end face of the upper inner pressure ring that contacts the upper outer pressure ring; The lower mold includes a lower outer pressure ring, and a lower inner pressure ring is detachably installed at one end of the lower outer pressure ring facing the upper mold. A lower steel ball is embedded and installed at the end face of the lower inner pressure ring that contacts the lower outer pressure ring. The part to be tested is placed on the lower mold, and the lower steel ball contacts the lower surface of the part to be tested. When the upper mold is pressed down, the upper steel ball contacts the upper surface of the part to be tested and applies a load.

[0005] As a further technical solution, a lower mounting groove is opened on the upper part of the lower outer pressure ring for positioning and installing the lower inner pressure ring.

[0006] As a further technical solution, a lower annular groove is opened at the lower mounting slot, and a lower flange is provided at the position of the lower inner pressure ring facing the lower annular groove. A lower arc surface is provided at the position of the lower flange facing the lower annular groove to surround and protect the lower steel ball embedded in the lower annular groove.

[0007] As a further technical solution, several recessed holes are made on the lower inner pressure ring along the circumferential direction, and a lower fixing hole is made on the lower outer pressure ring at the corresponding position of the recessed holes. Bolts are used to pass through the recessed holes and the lower fixing holes in sequence to connect and fix the lower inner pressure ring and the lower outer pressure ring.

[0008] As a further technical solution, an upper mounting groove is provided at the lower part of the upper outer pressure ring for positioning and installing the upper inner pressure ring.

[0009] As a further technical solution, an upper annular groove is opened at the upper mounting slot, and an upper flange is provided at the position of the upper inner pressure ring facing the upper annular groove. An upper arc surface is provided at the position of the upper flange facing the upper annular groove to surround and embed the upper steel ball installed in the upper annular groove.

[0010] As a further technical solution, several countersunk holes are made on the upper inner pressure ring along the circumferential direction, and upper fixing holes are made on the upper outer pressure ring at positions corresponding to the countersunk holes. Bolts are then passed through the countersunk holes and the upper fixing holes in sequence to connect and fix the upper inner pressure ring and the upper outer pressure ring.

[0011] The beneficial effects of this utility model are as follows: 1. The inner and outer pressure rings are connected by threads and can be detached and installed, which is flexible and convenient, and makes it easy to replace when the steel balls wear out, thus extending the service life of the clamp. 2. The use of upper and lower steel balls to contact the surface of the part to be tested will not cause scratches on the diaphragm spring or make machining difficult, ensuring smooth testing, guaranteeing the stability and reliability of the test, and will not affect subsequent processing and use; 3. Part of the steel ball is installed in the annular groove, and the other part is surrounded by the arc surface of the flange, which not only ensures that the steel ball does not fall off during use, but also ensures the flexibility of the steel ball in the annular groove. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the upper outer pressure ring in this utility model.

[0014] Figure 3 for Figure 2 AA sectional view.

[0015] Figure 4 This is a schematic diagram of the upper inner pressure ring in this utility model.

[0016] Figure 5 for Figure 4 BB cross-sectional view.

[0017] Figure 6 This is a schematic diagram of the lower outer pressure ring in the utility model.

[0018] Figure 7 for Figure 6 CC section view.

[0019] Figure 8 This is a schematic diagram of the lower inner pressure ring in this utility model.

[0020] Figure 9 for Figure 8 DD sectional view.

[0021] Explanation of reference numerals in the attached diagram: Lower outer pressure ring 1, Lower annular groove 11, Lower fixing hole 12, Lower mounting groove 13, Lower inner pressure ring 2, Lower flange 21, Lower arc surface 211, Lower countersunk hole 22, Upper steel ball 3, Upper inner pressure ring 4, Upper flange 41, Upper arc surface 411, Upper countersunk hole 42, Upper outer pressure ring 5, Upper annular groove 51, Upper fixing hole 52, Upper mounting groove 53, Screw 6, Part to be tested 7, Lower steel ball 8. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings: Example: As attached Figures 1-9 As shown, this diaphragm spring load testing device includes a lower outer pressure ring 1, a lower annular groove 11, a lower fixing hole 12, a lower mounting groove 13, a lower inner pressure ring 2, a lower flange 21, a lower arc surface 211, a lower countersunk hole 22, an upper steel ball 3, an upper inner pressure ring 4, an upper flange 41, an upper arc surface 411, an upper countersunk hole 42, an upper outer pressure ring 5, an upper annular groove 51, an upper fixing hole 52, an upper mounting groove 53, a screw 6, a part to be tested 7, and a lower steel ball 8.

[0023] Reference Appendix Figure 1 The upper mold can be connected and driven by an external device, and a lower mold is set below the upper mold. The upper mold includes an upper outer pressure ring 5, and an upper inner pressure ring 4 is detachably installed at the end of the upper outer pressure ring 5 facing the lower mold. An upper steel ball 3 is embedded and installed at the end face of the upper inner pressure ring 4 that contacts the upper outer pressure ring 5. The lower mold includes a lower outer pressure ring 1, and a lower inner pressure ring 2 is detachably installed at the end of the lower outer pressure ring 1 facing the upper mold. A lower steel ball 8 is embedded and installed at the end face of the lower inner pressure ring 2 that contacts the lower outer pressure ring 1. During testing, the part to be tested 7 is placed on the lower mold, and the lower steel ball 8 contacts the lower surface of the part to be tested 7. When the upper mold is pressed down, the upper steel ball 3 contacts the upper surface of the part to be tested 7 and applies a load.

[0024] Furthermore, such as Figure 1 , 6 As shown in Figure 7, a lower mounting groove 13 is formed on the upper part of the lower outer pressure ring 1, and the lower inner pressure ring 2 is positioned and installed in the lower mounting groove 13. A lower annular groove 11 is formed at the opening of the lower mounting groove 13. The lower annular groove 11 adopts a semi-enclosed design, and a lower flange 21 is provided at the position of the lower inner pressure ring 2 facing the lower annular groove 11, as shown in Figure 7. Figure 1 , 8As shown in Figure 9, the lower flange 21 is provided with a lower arc surface 211 facing the lower annular groove 11. The lower arc surface 211 can surround and contain the lower steel ball 8 that is embedded in the lower annular groove 11.

[0025] Preferably, a plurality of recessed holes 22 are formed on the lower inner pressure ring 2 along the circumferential direction, and a lower fixing hole 12 is formed on the lower outer pressure ring 1 at a position corresponding to the recessed holes 22. Bolts 6 are used to pass through the recessed holes 22 and the lower fixing hole 12 in sequence, thereby connecting and fixing the lower inner pressure ring 2 and the lower outer pressure ring 1.

[0026] like Figure 1 , 2 As shown in Figure 3, an upper mounting groove 53 is formed at the lower part of the upper outer pressure ring 5, and an upper inner pressure ring 4 is positioned and installed in the upper mounting groove 53. An upper annular groove 51 is formed at the opening of the upper mounting groove 53. The upper annular groove 51 also adopts a semi-enclosed design, and an upper flange 41 is provided at the position where the upper inner pressure ring 4 faces the upper annular groove 51, as shown in Figure 3. Figure 1 , 4 As shown in Figure 5, the upper flange 41 is provided with an upper arc surface 411 facing the upper annular groove 51. The upper arc surface 411 can surround and embed the upper steel ball 3 installed in the upper annular groove 51.

[0027] Preferably, the upper inner pressure ring 4 has several upper countersunk holes 42 along the circumferential direction, and the upper outer pressure ring 5 has upper fixing holes 52 at positions corresponding to the upper countersunk holes 42. Bolts 6 are used to pass through the upper countersunk holes 42 and the upper fixing holes 52 in sequence, thereby connecting and fixing the upper inner pressure ring 4 and the upper outer pressure ring 5.

[0028] Reference Appendix Figure 1 , 5 9. Preferably, the surfaces of the lower inner pressure ring 2 and the upper inner pressure ring 4 that are opposite to each other (i.e., Figure 1 In the middle, the upper surface of the lower inner pressure ring 2 and the lower surface of the upper inner pressure ring 4 are both designed as inclined surfaces. The angle α between the inclined surface of the upper inner pressure ring 4 and the horizontal plane is 20°, and the angle β between the inclined surface of the lower inner pressure ring 2 and the horizontal plane is also 20°.

[0029] The working principle of this utility model: This invention comprises two parts: an upper mold and a lower mold. Each mold consists of an outer pressure ring and an inner pressure ring (which can be detachably installed). A steel ball is embedded in the annular groove of the outer pressure ring and held in place by the inner pressure ring (the curved surface of the flange). The inner and outer pressure rings are connected and fixed with screws. This design ensures that the steel ball does not fall out during use and maintains its flexibility within the annular groove, reducing diaphragm spring damping during testing and resulting in more accurate load test results. When the steel ball wears down after prolonged use, it can be replaced by disassembling the pressure ring, making the process flexible and convenient.

[0030] It is understood that, for those skilled in the art, any equivalent substitutions or modifications to the technical solutions and inventive concepts of this utility model should fall within the protection scope of the appended claims.

Claims

1. A diaphragm spring load testing device, characterized in that: Includes an upper mold and a lower mold disposed below the upper mold; The upper mold includes an upper outer pressure ring (5), and an upper inner pressure ring (4) is detachably installed on one end of the upper outer pressure ring (5) facing the lower mold. A steel ball (3) is embedded and installed at the end face of the upper inner pressure ring (4) that contacts the upper outer pressure ring (5). The lower mold includes a lower outer pressure ring (1), and a lower inner pressure ring (2) is detachably installed on one end of the lower outer pressure ring (1) facing the upper mold. A lower steel ball (8) is embedded in the end face of the lower inner pressure ring (2) that contacts the lower outer pressure ring (1). The part to be tested (7) is placed on the lower mold and the lower steel ball (8) contacts the lower surface of the part to be tested (7). When the upper mold is pressed down, the upper steel ball (3) contacts the upper surface of the part to be tested (7) and applies a load.

2. The diaphragm spring load testing device according to claim 1, characterized in that: The lower outer pressure ring (1) has a lower mounting groove (13) on its upper part for positioning and installing the lower inner pressure ring (2).

3. The diaphragm spring load testing device according to claim 2, characterized in that: The lower mounting groove (13) has a lower annular groove (11) at the opening, and a lower flange (21) is provided at the position of the lower inner pressure ring (2) facing the lower annular groove (11). A lower arc surface (211) is provided at the position of the lower flange (21) facing the lower annular groove (11) to surround the lower steel ball (8) embedded in the lower annular groove (11).

4. The diaphragm spring load testing device according to claim 1, characterized in that: The lower inner pressure ring (2) has several recessed holes (22) along the circumferential direction. The lower outer pressure ring (1) has a lower fixing hole (12) at the corresponding position of the recessed holes (22). The lower inner pressure ring (2) and the lower outer pressure ring (1) are connected and fixed by bolts (6) passing through the recessed holes (22) and the lower fixing hole (12) in sequence.

5. The diaphragm spring load testing device according to claim 1, characterized in that: The upper outer pressure ring (5) has an upper mounting groove (53) at its lower part for positioning and installing the upper inner pressure ring (4).

6. The diaphragm spring load testing device according to claim 5, characterized in that: The upper mounting groove (53) has an upper annular groove (51) at the opening, and an upper flange (41) is provided at the position of the upper inner pressure ring (4) facing the upper annular groove (51). An upper arc surface (411) is provided at the position of the upper flange (41) facing the upper annular groove (51) to surround the upper steel ball (3) installed in the upper annular groove (51).

7. The diaphragm spring load testing device according to claim 1, characterized in that: The upper inner pressure ring (4) has several upper countersunk holes (42) along the circumferential direction. The upper outer pressure ring (5) has upper fixing holes (52) at the corresponding positions of the upper countersunk holes (42). The upper inner pressure ring (4) and the upper outer pressure ring (5) are connected and fixed by bolts (6) passing through the upper countersunk holes (42) and the upper fixing holes (52) in sequence.

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