Wave-shaped spring washer bending tool

Abstract

The utility model discloses a waveform spring washer bending tool, and belongs to the technical field of waveform spring washer machining. The tool comprises a lower die, a positioning rod, a positioning ring and an upper die, the positioning ring is placed on the lower die, the positioning rod is movably connected with the lower die and penetrates through the positioning ring, the upper die and the lower die are both cylindrical, the diameter of the upper die and the diameter of the lower die are consistent with the outer diameter of the wave-shaped spring washer, and after the upper die and the lower die are opened, the wave-shaped spring washer is fixed through the positioning ring. The upper die is located on the upper sides of the lower die, the positioning rod and the positioning ring, and after the upper die and the lower die are assembled, the upper die is movably arranged on the positioning rod and the positioning ring in a sleeved mode. In the bending forming process of the waveform spring washer, positioning is conducted through the positioning rod, it is ensured that the lower die, the positioning ring and the upper die are coaxially arranged, positioning is conducted through the positioning ring, and it is ensured that the waveform spring washer and the lower die are coaxially arranged; the upper die and the lower die are cylindrical, and the diameter of the upper die and the diameter of the lower die are consistent with the outer diameter of the wave-shaped spring washer, so that whether the wave-shaped spring washer is machined in place or not can be conveniently observed in the bending forming process of the wave-shaped spring washer.

Description

Technical Field

[0001] The utility model relates to a corrugated spring washer bending tool and belongs to the technical field of corrugated spring washer processing. Background Art

[0002] In the machinery manufacturing industry, especially in the fields of aerospace and shipbuilding, various types of washers have been widely used, mainly used in the connection between some main bodies and components, with supporting functions. Figures 1 to 3 As shown, when the corrugated spring pad is bent and formed, not only the size requirements are met, but also factors such as material rebound deformation must be considered.

[0003] The Chinese patent document with the publication number CN217665849U discloses a curved surface corrugated elastic gasket forming die, including an upper die and a lower die, the upper die can be lifted and lowered relative to the lower die, the upper die has a circumferentially continuous sinusoidal surface, and the lower die has an annular surface that can match and fit the sinusoidal surface. The curved surface gasket is processed by equally dividing the die surface with a certain slope sinusoidal distribution, the upper die and the lower die respectively have continuous concave and convex curved surfaces, which are wavy and circumferentially integrated. When stamping the flat gasket, both sides of the gasket are all rolled by the sinusoidal surface and the annular surface, so that the inside of the metal gasket is subjected to shear stress, and a directional effect occurs along the radial inclination direction of the curved surface, and the stability of the buffering performance of the formed curved surface corrugated elastic gasket is greatly improved.

[0004] However, when the curved surface corrugated elastic gasket is processed, it is located in the punching hole, and it is not convenient to observe whether the curved surface corrugated elastic gasket has been processed in place. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a corrugated spring washer bending tool.

[0006] The utility model is realized through the following technical solutions:

[0007] A corrugated spring washer bending tool comprises a lower die, a positioning rod, a positioning ring and an upper die, wherein the positioning ring is placed on the lower die, the positioning rod is movably connected to the lower die and passes through the positioning ring, the upper die and the lower die are both cylindrical, and the diameters of the upper die and the lower die are consistent with the outer diameter of the corrugated spring washer, after the upper die and the lower die are opened, the upper die is located on the upper side of the lower die, the positioning rod and the positioning ring, and after the upper die and the lower die are closed, the upper die is movably sleeved on the positioning rod and the positioning ring.

[0008] A contoured surface A is provided on the upper end surface of the lower die, and a blind hole A is coaxially provided at the upper end of the lower die, and a square hole A is provided at the bottom of the blind hole A along the axial direction.

[0009] The cross section of the positioning rod is rectangular.

[0010] The inner hole of the positioning ring is rectangular, and both ends of the inner hole are provided with chamfers.

[0011] A contoured surface B is provided on the lower end surface of the upper die, and a blind hole B is coaxially provided at the lower end of the upper die, and a square hole B is axially provided at the bottom of the blind hole B.

[0012] The beneficial effects of the utility model are as follows: during the bending and forming process of the corrugated spring washer, positioning is performed by the positioning rod to ensure that the lower die, the positioning ring and the upper die are coaxially arranged, and positioning is performed by the positioning ring to ensure that the corrugated spring washer and the lower die are coaxially arranged; the upper die and the lower die are both cylindrical, and the diameters of the upper die and the lower die are consistent with the outer diameter of the corrugated spring washer, which makes it easy to observe whether the corrugated spring washer has been processed in place during the bending and forming process of the corrugated spring washer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the wave spring;

[0014] Figure 2 It is a schematic diagram of the main structure of the wave spring;

[0015] Figure 3 It is a left view structural diagram of a wave spring;

[0016] Figure 4 It is an exploded diagram of the utility model and the wave spring;

[0017] Figure 5 It is a three-dimensional structural schematic diagram of the lower mold of the utility model;

[0018] Figure 6 It is a cross-sectional view of the lower mold of the utility model;

[0019] Figure 7 This is a schematic diagram of the main structure of the positioning ring of the utility model;

[0020] Figure 8 It is a left-side structural schematic diagram of the positioning ring of the utility model;

[0021] Fig. 9 It is a three-dimensional structural schematic diagram of the upper mold of the utility model;

[0022] Fig.10 It is a cross-sectional view of the upper mold of the utility model.

[0023] In the figure: 1-corrugated spring washer, 2-lower die, 20-blind hole A, 21-square hole A, 22-contour surface A, 3-positioning rod, 4-positioning ring, 40-inner hole, 41-chamfer, 5-upper die, 50-blind hole B, 51-square hole B, 52-contour surface B. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0025] like Figures 1 to 10 As shown, the utility model describes a corrugated spring washer bending tool, comprising a lower die 2, a positioning rod 3, a positioning ring 4 and an upper die 5, the positioning ring 4 is placed on the lower die 2, the positioning rod 3 is movably connected to the lower die 2 and passes through the positioning ring 4, the upper die 5 and the lower die 2 are both cylindrical, and the diameters of the upper die 5 and the lower die 2 are consistent with the outer diameter of the corrugated spring washer 1, after the upper die 5 and the lower die 2 are opened, the upper die 5 is located on the upper side of the lower die 2, the positioning rod 3 and the positioning ring 4, and after the upper die 5 and the lower die 2 are closed, the upper die 5 is movably sleeved on the positioning rod 3 and the positioning ring 4. During the bending process of the corrugated spring washer 1, the positioning rod 3 is used to position the lower die 2, the positioning ring 4 and the upper die 5 to ensure that the corrugated spring washer 1 is coaxially arranged. The positioning ring 4 is used to position the corrugated spring washer 1 to ensure that the corrugated spring washer 1 is coaxially arranged with the lower die 2. The upper die 5 and the lower die 2 are both cylindrical, and the diameters of the upper die 5 and the lower die 2 are consistent with the outer diameter of the corrugated spring washer 1, so that it is convenient to observe whether the corrugated spring washer 1 has been processed in place during the bending process of the corrugated spring washer 1. If the diameters of the upper die 5 and the lower die 2 are too large, it is not convenient to observe whether the corrugated spring washer 1 has been processed in place; if they are too small, there will be a scratch mark on the corrugated spring washer 1.

[0026] The upper end surface of the lower die 2 is provided with a profiling surface A22, and the upper end of the lower die 2 is coaxially provided with a blind hole A20, and the bottom of the blind hole A20 is provided with a square hole A21 along the axial direction. When in use, the blind hole A20 plays a role in positioning and limiting the positioning ring 4, and the diameter of the blind hole A20 is adapted to the outer diameter of the positioning ring 4. The profiling surface A22 is obtained by profiling the lower end surface of the formed corrugated spring washer 1.

[0027] The cross-sectional shape of the positioning rod 3 is rectangular. When in use, the cross-sectional shape of the positioning rod 3 is square, and the square hole A21, the inner hole 40 and the square hole B51 are adapted to the positioning rod 3. When the upper mold 5 and the lower mold 2 are closed, the positioning rod 3 plays a positioning role to ensure that the lower mold 2, the positioning ring 4 and the upper mold 5 are coaxially arranged; at the same time, the positioning rod 3 plays a limiting role to prevent the lower mold 2, the positioning ring 4 and the upper mold 5 from rotating relative to each other.

[0028] The inner hole 40 of the positioning ring 4 is rectangular, and both ends of the inner hole 40 are provided with chamfers 41. Both ends of the inner hole 40 are processed with chamfers 41 to facilitate one end of the positioning rod 3 to pass through the positioning ring 4. The positioning ring 4 plays a positioning and limiting role to ensure that the corrugated spring washer 1 and the lower die 2 are coaxially arranged.

[0029] The lower end surface of the upper die 5 is provided with a profiling surface B52, and the lower end of the upper die 5 is coaxially provided with a blind hole B50, and the bottom of the blind hole B50 is provided with a square hole B51 along the axial direction. When in use, the diameter of the blind hole B50 is consistent with the diameter of the blind hole A20. The profiling surface B52 is obtained by profiling the upper end surface of the formed corrugated spring washer 1.

[0030] The working principle or use process of the corrugated spring pad bending tool described in the utility model is as follows:

[0031] First, place the lower die 2 horizontally, then put the positioning ring 4 into the blind hole A20 on the lower die 2, then insert the positioning rod 3 into the square holes of the lower die 2 and the positioning ring 4, then put the inner hole of the blank of the corrugated spring washer 1 on the positioning ring 4, and finally adjust the upper die 5 and put it on the positioning rod 3 accordingly, so as to complete the positioning and limiting of the blank of the corrugated spring washer 1 in the tooling, and the positioning and limiting between the various parts of the tooling. Use the hydraulic press to press the upper die 5, and the corrugated spring washer 1 is bent into shape through the matching of the profiling surface B52 on the upper die 5 and the profiling surface A22 on the lower die 2.

Claims

1. A corrugated spring washer bending tool, characterized in that: The invention comprises a lower die (2), a positioning rod (3), a positioning ring (4) and an upper die (5); the positioning ring (4) is placed on the lower die (2); the positioning rod (3) is movably connected to the lower die (2) and passes through the positioning ring (4); the upper die (5) and the lower die (2) are both cylindrical, and the diameters of the upper die (5) and the lower die (2) are consistent with the outer diameter of the corrugated spring pad (1); after the upper die (5) and the lower die (2) are opened, the upper die (5) is located on the upper side of the lower die (2), the positioning rod (3) and the positioning ring (4); after the upper die (5) and the lower die (2) are closed, the upper die (5) is movably sleeved on the positioning rod (3) and the positioning ring (4).

2. The corrugated spring washer bending tool as claimed in claim 1, characterized in that: The upper end surface of the lower die (2) is provided with a contoured surface A (22), and the upper end of the lower die (2) is coaxially provided with a blind hole A (20), and the bottom of the blind hole A (20) is axially provided with a square hole A (21).

3. The corrugated spring washer bending tool as claimed in claim 1, characterized in that: The cross-section of the positioning rod (3) is rectangular.

4. The corrugated spring washer bending tool as claimed in claim 1, characterized in that: The inner hole (40) of the positioning ring (4) is rectangular, and both ends of the inner hole (40) are provided with chamfers (41).

5. The corrugated spring washer bending tool as claimed in claim 1, characterized in that: The lower end surface of the upper die (5) is provided with a contoured surface B (52), and the lower end of the upper die (5) is coaxially provided with a blind hole B (50), and the bottom of the blind hole B (50) is axially provided with a square hole B (51).

Images