High-toughness forged disc spring and manufacturing process

Abstract

The application relates to a high-toughness forged disc spring and a manufacturing process, and relates to the technical field of disc springs. The disc spring comprises a body, the body comprises a first section, a second section and a third section arranged in sequence from top to bottom, the second section comprises mutually parallel inner line two and outer line two, the inner line is an inner generatrix of the body, and the outer line is an outer generatrix of the body, the first section comprises outer line one, the outer line one and the outer line two form an included angle one, and the third section comprises inner line three, and the inner line three and the inner line two form an included angle two. The application has the advantages that the force value change is discontinuous.

Description

TECHNICAL FIELD

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

[0002] A disc spring is a washer-type spring in a truncated cone section formed by metal sheet or forging blank. When the disc spring is deformed under force, the force value characteristic is smooth and continuous. However, in some fields, the force value needs to be discontinuous. The existing disc spring cannot meet the demand. SUMMARY

[0003] In view of the defects 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 that the force value can be discontinuous.

[0004] The above purpose of the present application is achieved by the following technical scheme:

[0005] A high-toughness forged disc spring comprises a body, the body comprises a first segment, a second segment and a third segment arranged in sequence from top to bottom, the second segment comprises inner lines two and outer lines two which are parallel to each other, the inner lines are inner generatrixes of the body, and the outer lines are outer generatrixes of the body, the first segment comprises outer lines one, the outer lines one and the outer lines two form an included angle one, and the third segment comprises inner lines three, and the inner lines three and the inner lines two form an included angle two.

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

[0007] In a preferred example, the present application can be further configured such that, in the forging step, the formed rough blank further comprises a clamping portion, and the clamping portion is in a planar shape and arranged at an end of the first segment.

[0008] In a preferred example, the present application can be further configured such that, in the finishing step, the product is sleeved on a rotating shaft, the rotating shaft is driven to rotate, and the first segment and the third segment are machined by a cutting tool.

[0009] In a preferred example, the present application can be further configured such 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 portion.

[0010] The application can be further configured in a preferred example that, in the forging step, the first section and the third section are provided with a texture, and the texture depth is less than or equal to the thickness to be processed.

[0011] The application can be further configured in a preferred example that, in the inspection step, the area where the first section and the third section are located is inspected, and if the textures meet the standard, it is a qualified product.

[0012] The application has the following advantages:

[0013] By setting the first section and the third section, the deformation degree under different pressures in the deformation process is nonlinear, so as to achieve the purpose of non-continuous change of force value. BRIEF DESCRIPTION OF DRAWINGS

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

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

[0016] Reference signs: 1, 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 portion. DETAILED DESCRIPTION

[0017] The application will be further described in detail below in combination with the drawings.

[0018] Reference Figure 1 A high-toughness forged disc spring disclosed by the application includes 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 two 122 and an outer line two 121 which are parallel to each other, the inner line is an internal generatrix of the body 1, and the outer line is an external generatrix of the body 1, the first section 11 includes an outer line one 111, the outer line one 111 and the outer line two 121 form an included angle one, and the third section 13 includes an inner line three 131, the inner line three 131 and the inner line two 122 form an included angle two.

[0019] The application also discloses a manufacturing process of a high-toughness forged disc spring, which is used for manufacturing the high-toughness forged disc spring and includes the following steps,

[0020] In the forging step, a metal blank is forged into a blank, and the formed blank also includes a clamping portion 2, the clamping portion 2 is planar and arranged at the end of the first section 11, and the clamping portion 2 can be annular or intermittently arranged, refer to Figure 2In the present application, the first section 11 and the third section 13 are provided with a groove, and the groove depth is less than or equal to the thickness to be processed; in the present embodiment, the groove is provided on the surface where the outer line one 111 is located and the surface where the inner line three 131 is located, and the groove depth is less than or equal to the thickness of the corresponding area to be processed. In the present application, the metal blank is a metal with high toughness.

[0021] In the finishing step, the first section 11 and the third section 13 are processed (cutting or polishing) after the clamping part 2 is clamped by the driving shaft and the driven shaft.

[0022] In the finishing step, the first section 11 and the third section 13 are processed (cutting or polishing) after the clamping part 2 is clamped by the driving shaft and the driven shaft.

[0023] In the finishing step, the first section 11 and the third section 13 are processed (cutting or polishing) after the clamping part 2 is clamped by the driving shaft and the driven shaft.

[0024] In the finishing step, the first section 11 and the third section 13 are processed (cutting or polishing) after the clamping part 2 is clamped by the driving shaft and the driven shaft.

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

[0026] In the finishing step, the first section 11 and the third section 13 are processed (cutting or polishing) after the clamping part 2 is clamped by the driving shaft and the driven shaft.

[0027] The implementation principle of the present embodiment is that by providing the first section 11 and the third section 13, the deformation degree under different pressures in the deformation process is nonlinear, so as to achieve the purpose of non-continuous change of force value.

[0028] The embodiments of the present specific embodiment are preferred embodiments of the present application, but do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A manufacturing process for a high-toughness forged disc spring, used to manufacture a high-toughness forged disc spring, the disc spring comprising a body (1), the body (1) comprising a first segment (11), a second segment (12) and a third segment (13) arranged sequentially from top to bottom, the second segment (12) comprising an inner line two (122) and an outer line two (121) parallel to each other, the inner line being the inner generatrix of the body (1), the outer line being the outer generatrix of the body (1), the first segment (11) comprising an outer line one (111), the extensions of the outer line one (111) and the outer line two (121) forming an angle one, the third segment (13) comprising an inner line three (131), the extensions of the inner line three (131) and the inner line two (122) forming an angle two, characterized in that: The steps include the following: Forging step: Forging the metal billet into a blank, setting the texture on the first section (11) and the third section (13), the texture depth being less than or equal to the thickness to be processed, and the texture having multiple corresponding to multiple product specifications; Finishing step: Finishing the blank, removing burrs, and deepening the texture according to different product specifications. Heat treatment: Heat treatment is performed on the repaired product; Finishing steps: Finishing is performed on the first section (11) and the third section (13); Inspection steps: The finished product is inspected, and the areas where the first section (11) and the third section (13) are located are inspected. If the textures meet the standards, the product is qualified.

2. The manufacturing process of a high-toughness forged disc spring according to claim 1, characterized in that: In the forging step, the formed blank also includes a clamping part (2), which is planar and located at the end of the first section (11).

3. The manufacturing process of a high-toughness forged disc spring according to claim 2, characterized in that: In the finishing step, the product is mounted on a rotating shaft, which drives the rotation, and the first section (11) and the third section (13) are processed by a cutting tool.

4. The manufacturing process of a high-toughness forged disc spring according to claim 3, characterized in that: The rotating shaft includes a driving shaft and a driven shaft, which are close to each other to clamp the clamping part (2).

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