High-toughness forged and pressed belleville spring and manufacturing process

Abstract

The invention relates to a high-toughness forged and pressed belleville spring and a manufacturing process, and relates to the technical field of belleville springs.The high-toughness forged and pressed belleville spring comprises a body, the body comprises a first section, a second section and a third section which are sequentially arranged from top to bottom, the second section comprises a second inner line and a second outer line which are parallel to each other, the inner line is an inner bus of the body, and the outer line is an outer bus of the body; the first section comprises an outer line I, extension lines of the outer line I and the outer line II form an included angle I, the third section comprises an inner line III, and extension lines of the inner line III and the inner line II form an included angle II. The method has the advantage that the force value change can be discontinuous.

Description

Technical Field

[0001] The present application relates to the technical field of disc springs, and in particular to a high-toughness forged disc spring and a manufacturing process. Background Art

[0002] Disc springs are washer-type springs with truncated cone cross-sections made of metal sheets or forged blanks. When disc springs are deformed by force, their force characteristics are smooth and continuous. However, in some fields, the force changes need to be discontinuous, and existing disc springs cannot meet this demand. Summary of the invention

[0003] In view of the deficiencies in the prior art, one of the purposes of the present application is to provide a high-toughness forged disc spring and a manufacturing process, which has the advantage of being able to achieve discontinuous force value changes.

[0004] The above-mentioned purpose of the present application is achieved through the following technical solutions:

[0005] A high-toughness forged disc spring comprises a body, wherein the body comprises a first section, a second section and a third section which are arranged in sequence from top to bottom, wherein the second section comprises an inner line 2 and an outer line 2 which are parallel to each other, wherein the inner line is an internal generatrix of the body, and the outer line is an external generatrix of the body, wherein the first section comprises an outer line 1, wherein the extension of the outer line 1 and the outer line 2 forms an angle 1, and wherein the third section comprises an inner line 3, wherein the extension of the inner line 3 and the inner line 2 forms an angle 2.

[0006] The present application also discloses a manufacturing process for a high-toughness forged disc spring, which is used to manufacture the above-mentioned high-toughness forged disc spring, and includes the following steps: a forging step, forging a metal blank into a blank, a trimming step, trimming the blank to remove burrs, heat treatment, heat treatment of the trimmed product, a finishing step, finishing the first section and the third section, and an inspection step, inspecting the finished product.

[0007] In a preferred example, the present application can be further configured as follows: in the forging step, the formed blank also includes a clamping portion, which is planar and disposed at the end of the first section.

[0008] In a preferred example, the present application can be further configured as follows: in the finishing step, the product is sleeved on a rotating shaft, which is driven to rotate, and the first section and the third section are processed by a cutting tool.

[0009] In a preferred example, the present application can be further configured as follows: the rotating shaft includes a driving shaft and a driven shaft, and the driving shaft and the driven shaft are close to each other to clamp the clamping part.

[0010] In a preferred example, the present application can be further configured as follows: in the forging step, the first section and the third section are provided with textures, and the depth of the textures is less than or equal to the thickness to be processed.

[0011] In a preferred example, the present application can be further configured as follows: in the inspection step, the areas where the first section and the third section are located are inspected, and if the patterns all meet the standards, they are qualified products.

[0012] This application has the following advantages:

[0013] By setting the first section and the third section, the deformation degree under different pressures changes nonlinearly during the deformation process, thereby achieving the purpose of non-continuous force value change. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the cross-sectional structure of this application.

[0015] Figure 2 It is a schematic diagram of the top view structure of the blank of this application.

[0016] Figure numerals: 1, main body; 11, first section; 111, outer line one; 12, second section; 121, outer line two; 122, inner line two; 13, third section; 131, inner line three; 2, clamping part. DETAILED DESCRIPTION

[0017] The present application is further described in detail below in conjunction with the accompanying drawings.

[0018] Reference Figure 1 , is a high-toughness forged disc spring disclosed in the present application, including a body 1, the body 1 includes a first section 11, a second section 12 and a third section 13 arranged in sequence from top to bottom, the second section 12 includes an inner line 2 122 and an outer line 2 121 which are parallel to each other, the inner line is an internal busbar of the body 1, and the outer line is an external busbar of the body 1, the first section 11 includes an outer line 111, and the extension lines of the outer line 111 and the outer line 2 121 form an angle 1, and the third section 13 includes an inner line 3 131, and the extension lines of the inner line 3 131 and the inner line 2 122 form an angle 2.

[0019] The present application also discloses a manufacturing process for a high-toughness forged disc spring, which is used to manufacture the above-mentioned high-toughness forged disc spring, and comprises the following steps:

[0020] In the forging step, the metal blank is forged into a blank. The formed blank also includes a clamping portion 2. The clamping portion 2 is planar and is arranged at the end of the first section 11. The clamping portion 2 can be annular or intermittent. Figure 2, in this application, it is intermittently set, and the first section 11 and the third section 13 are provided with lines, and the depth of the lines is less than or equal to the thickness to be processed; in this embodiment, the lines are set on the surface where the outer line 111 is located and the surface where the inner line 3 131 is located, and the depth of the lines is less than or equal to the thickness of the corresponding area to be processed, and the thickness to be processed refers to the thickness of the part that needs to be removed in the fine processing. In this application, the metal blank is a metal with high toughness.

[0021] A finishing step is to finish the blank and remove burrs;

[0022] Heat treatment, heat treatment of the trimmed product;

[0023] Finishing step: after the clamping part 2 is clamped by the driving shaft and the driven shaft, the driving shaft drives the clamping part 2 to rotate, and then the first section 11 and the third section 13 are finished (cutting or grinding);

[0024] The inspection step is to inspect the finished product, and to inspect the area where the first section 11 and the third section 13 are located. If the patterns meet the standards, the product is qualified.

[0025] In the forging step, the metal blank is forged into a blank, and in this step, the first section 11 and the third section 13 may be roughly formed, and in the finishing step, the first section 11 and the third section 13 may be polished. Alternatively, in this step, the first section 11 and the third section 13 may not be roughly formed, and in the finishing step, the first section 11 and the third section 13 may be cut.

[0026] The finishing step also includes deepening the lines, that is, deepening the lines according to different product specifications. For example, if the height of a certain section needs to be removed, the A specification needs to remove one unit of height, the B specification needs to remove two units of height, and the C specification needs to remove three units of height. When deepening the lines, at least three lines extending along the length of the busbar are grouped together, and the three lines are deepened so that they can correspond to the heights of the three specifications one by one. When four lines are grouped together, the depth of one of them is greater than the maximum depth. Therefore, in the inspection step, the corresponding lines are detected (whether the corresponding lines exist, and the depth of the remaining lines) to determine whether the processing meets the standards.

[0027] The implementation principle of this embodiment is: by setting the first section 11 and the third section 13, during the deformation process, the deformation degree under different pressures changes nonlinearly, thereby achieving the purpose of non-continuous force value change.

[0028] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-toughness forged disc spring, characterized in that: The invention comprises a body (1), wherein the body (1) comprises a first section (11), a second section (12) and a third section (13) which are arranged in sequence from top to bottom, wherein the second section (12) comprises an inner line 2 (122) and an outer line 2 (121) which are parallel to each other, wherein the inner line is an internal busbar of the body (1), and the outer line is an external busbar of the body (1), wherein the first section (11) comprises an outer line 1 (111), and an extension line of the outer line 1 (111) and the outer line 2 (121) forms an angle 1, and the third section (13) comprises an inner line 3 (131), and an extension line of the inner line 3 (131) and the inner line 2 (122) forms an angle 2.

2. A manufacturing process for a high-toughness forged disc spring, used to manufacture a high-toughness forged disc spring as claimed in claim 1, characterized in that: The method comprises the following steps: a forging step for forging a metal blank into a blank; a trimming step for trimming the blank to remove burrs; a heat treatment step for heat treating the trimmed product; a finishing step for finishing the first section (11) and the third section (13); and an inspection step for inspecting the finished product.

3. The manufacturing process of a high-toughness forged disc spring according to claim 2, characterized in that: In the forging step, the formed blank further comprises a clamping portion (2), which is planar and arranged at the end of the first section (11).

4. The manufacturing process of a high-toughness forged disc spring according to claim 3, characterized in that: In the finishing step, the product is sleeved on a rotating shaft, which is driven to rotate, and the first section (11) and the third section (13) are processed by a cutting tool.

5. The manufacturing process of a high-toughness forged disc spring according to claim 4, characterized in that: The rotating shaft comprises a driving shaft and a driven shaft, and the driving shaft and the driven shaft are close to each other to clamp the clamping part (2).

6. The manufacturing process of a high-toughness forged disc spring according to claim 2, characterized in that: In the forging step, the first section (11) and the third section (13) are provided with textures, and the depth of the textures is less than or equal to the thickness to be processed.

7. The manufacturing process of a high-toughness forged disc spring according to claim 5, characterized in that: In the inspection step, the areas where the first section (11) and the third section (13) are located are inspected. If the patterns meet the standards, the products are qualified.

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