Spring piece stamping die
By designing a spring sheet stamping die that integrates stamping, trimming, and bending functions, the problem of precision control caused by multiple processing steps of spring sheets was solved, and efficient and economical spring sheet production was achieved.
Patent Information
- Application Number
- CN202520210794.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-10
AI Technical Summary
In the existing technology, the production of spring sheets requires multiple processing on different molds, which leads to difficulty in precision control, large dimensional errors, high labor costs, and difficulty in one-time molding.
A spring sheet stamping die was designed, comprising an upper die and a lower die. Through the coordinated work of multiple components, multiple steps such as stamping, trimming, bending and blanking are completed in the same die, realizing the single forming of the spring sheet.
This technology enables efficient production of spring sheets, avoids errors caused by mold transfer, saves raw materials and time, and improves production efficiency.
Smart Images
Figure CN223819471U_ABST
Abstract
Description
Technical Field
[0001] A spring sheet stamping die is disclosed, relating to the field of mechanical manufacturing, and particularly to a spring sheet stamping die. Background Technology
[0002] In related technologies, spring plates used to mate with wheel hubs and caster brackets function as brakes. These spring plates have a raised portion; pressing down on the raised portion brakes the wheel, and releasing it moves the wheel hub. The production of these spring plates requires multiple stamping steps and is not a one-time forming process. If the spring plate is processed multiple times on different molds, undergoing stamping, trimming, and bending processes, precision control becomes difficult. Strict dimensional tolerances and high dimensional accuracy are required; even slight deviations can lead to assembly problems or affect performance. Adjusting the spring plate position during stamping with different molds can easily cause dimensional errors and increase labor costs. Therefore, this technology presents significant limitations and drawbacks. Utility Model Content
[0003] In order to overcome the shortcomings of related technologies, this application provides a spring sheet stamping die.
[0004] The mold includes an upper mold and a lower mold. The upper mold includes an upper template, an upper mold backing plate, an upper mold fixing plate, an upper mold fixing pad stripper plate, and an upper mold fixing pad stripper plate. The lower mold includes a lower concave template, a lower concave mold fixing pin plate, a lower concave mold backing plate, and a lower template. Material is fed between the upper mold fixing pad stripper plate and the lower concave template. The upper mold backing plate, the upper mold fixing plate, the upper mold fixing pad stripper plate, and the upper mold fixing pad stripper plate are elastically connected. The lower concave template and the lower concave mold fixing pin plate are elastically connected. Material is fed from one end of the mold and passes sequentially through the punching components... The mold consists of a first trimming component, a second trimming component, a bending component, a blanking component, and a punching component. The punching component is used to punch out a V-shaped groove in the material. The first trimming component trims the material to cut out the first side of the spring sheet. The second trimming component trims out the second side of the spring sheet. The bending component punches the material to bend it into the shape of a spring sheet. The blanking component trims the material to cut off the cross connection between the two spring sheets. The spring sheet is output from the other end of the mold. Two spring sheets are produced simultaneously in one process.
[0005] Furthermore, the spring sheet stamping die is also provided with a base.
[0006] Furthermore, the spring sheet stamping die is heat-treated to a hardness of HRC43°~45°.
[0007] Furthermore, multiple guide pillars are provided between the upper template and the lower template.
[0008] Furthermore, the spring sheet stamping die is also equipped with a conveying device, which is used to push the material between the upper die fixed stripper plate and the lower concave die plate.
[0009] Furthermore, the punching component includes an upper punching die and a lower punching die. The upper punching die presses downward into the lower punching die, and the upper punching die and the lower punching die cooperate to punch out a V-shaped groove for the material.
[0010] Furthermore, the first trimming component includes a first trimming upper die and a first trimming lower die. The first trimming upper die presses down into the first trimming lower die to trim the material and cut out the first side edge of the spring sheet. The second trimming component includes a second trimming upper die and a second trimming lower die. The second trimming upper die presses down into the second trimming lower die to cut out the second side edge of the spring sheet.
[0011] Furthermore, the bending component includes an upper bending die and a lower bending die, which work together to bend the material into the shape of a spring sheet.
[0012] Furthermore, the blanking component includes an upper blanking die and a lower blanking die, which cooperate to cut off the cross-shaped connection between the two spring sheets.
[0013] This application includes at least one of the following beneficial technical effects:
[0014] 1. The different steps of spring sheet processing can be carried out in the same mold, without the need to transfer the spring sheet production materials to different molds, thus avoiding errors caused by material movement.
[0015] 2. Each process produces a pair of spring sheets instead of just one, saving on ingredients and avoiding waste of raw materials.
[0016] 3. A single steel plate can produce multiple spring sheets. The steel plate is fed from one end of the mold and processed sequentially from left to right, saving processes, saving time, and improving the efficiency of spring sheet production. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.
[0018] Figure 2 This is a schematic diagram of the upper mold fixing and stripping plate structure in an embodiment of this application.
[0019] Figure 3 This is a schematic diagram of the upper mold structure of each component of the mold in the embodiment of this application.
[0020] Figure 4 This is a schematic diagram of the concave template structure in an embodiment of this application.
[0021] Figure 5This is an embodiment of the present application. Figure 4 Enlarged schematic diagram of the structure at point A in the middle.
[0022] Figure 6 This is a schematic diagram of the structure after the ingredients are prepared and cut according to the embodiment of this application.
[0023] Figure 7 This is a schematic diagram of the spring sheet structure in an embodiment of this application.
[0024] Figure 8 This is a schematic diagram of the third bent edge structure of the spring sheet in an embodiment of this application.
[0025] Figure 9 This is an embodiment of the present application. Figure 2 Enlarged schematic diagram of the structure at point B.
[0026] Explanation of reference numerals in the attached drawings: 1. Upper template; 2. Upper die pad; 3. Upper die retaining plate; 4. Upper die retaining pad stripper plate; 5. Upper die retaining pad stripper plate; 6. Lower die template; 7. Lower die retaining plate; 8. Lower die pad; 9. Lower template; 10. Base; 11. Punching component; 12. First trimming component; 13. Second trimming component; 14. Bending component; 15. Blanking component; 16. Second side; 17. First side; 18. Bending section; 19. First 20. Second bent edge; 21. V-shaped groove; 22. Elliptical groove; 23. Raised part; 24. Third bent edge; 25. Guide post; 31. Punch upper die; 32. First trimming upper die; 33. Second trimming upper die; 34. Bending upper die; 35. Blanking upper die; 41. Punch lower die; 42. First trimming lower die; 43. Second trimming lower die; 44. Bending lower die; 45. Blanking lower die; 46. Cross connection part; 47. Spring plate output port. Detailed Implementation
[0027] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.
[0028] Example 1:
[0029] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6This application provides a spring sheet stamping die, which is typically equipped with an external power device for driving the die to stamp. The power device provides power to the die, and the power device is usually a cylinder. A spring sheet stamping die includes an upper die and a lower die. The upper die includes an upper template 1, an upper die pad 2, an upper die fixing plate 3, an upper die fixing pad stripper plate 4, and an upper die fixing pad stripper plate 5. The lower die includes a lower concave template 6, a lower concave die fixing pin plate 7, a lower concave die pad 8, and a lower template 9. The upper template 1, upper die pad 2, and upper die... The following components are arranged sequentially from top to bottom: fixed tapping plate 3, upper die fixed tapping pad stripper plate 4, upper die fixed tapping pad stripper plate 5, lower concave template 6, lower concave die fixed pin plate 7, lower concave die pad plate 8, and lower template 9. The upper die pad plate 2, upper die fixed tapping plate 3, upper die fixed tapping pad stripper plate 4, and upper die fixed tapping pad stripper plate 5 are elastically connected. The lower concave template 6 and lower concave die fixed pin plate 7 are also elastically connected. Specifically, there is an elastic gap between the upper die fixed tapping plate 3 and the upper die fixed tapping pad stripper plate 4, and between the lower concave template 6 and the lower concave die fixed pin plate 7. A base 10 is provided under the lower template 9. In this embodiment, the base 10 includes two thick columns on both sides and two thin columns in the middle. The four columns are fixedly connected to the lower template 9, supporting it. Multiple guide columns 25 are provided between the upper template 1 and the lower template 9. Each guide column 25 includes a top sleeve and a column body that mates with the sleeve. In this embodiment, four guide columns 25 are provided.
[0030] Elastic clearance is a conventional technical means in stamping dies, therefore, the corresponding elastic clearance structure will not be described in detail in this application.
[0031] During the use of the spring sheet stamping die described in this application, the rigid material used for stamping is gradually passed through the stamping gap between the upper die fixed stripper plate 5 and the lower concave plate 6 under the drive of the matching conveying device. The rigid material is a steel plate, which is a steel plate when it enters the die. The steel plate is gradually fed into the stamping die without being opened.
[0032] Reference Figure 7 and Figure 8 The steel plate is used to produce spring sheets through the spring sheet stamping die. The spring sheet has a bent portion 18, and first bent edges 19 are provided on both sides of the bent portion 18. A second bent edge 20 is provided at the end of the bent portion 18 away from the cross connection portion 46. A V-shaped groove 21 is provided in the middle of the spring sheet. An upward-curving portion 23 is provided in the V-shaped groove 21. An elliptical groove 22 is provided between the curving portion 23 and the second bent edge 20. A third bent edge 24 is provided downward at the top of the curving portion 23.
[0033] The material is fed into the mold from one end. Along the material conveying direction, the lower mold is sequentially arranged with a punching lower mold 41, a first trimming lower mold 42, a second trimming lower mold 43, a bending lower mold 44, and a blanking lower mold 45. The upper mold is arranged with punching upper molds 31, first trimming upper molds 32, second trimming upper molds 33, bending upper molds 34, and blanking upper molds 35, which respectively cooperate with the punching lower mold 41, the first trimming lower mold 42, the second trimming lower mold 43, the bending lower mold 44, and the blanking lower mold 45. During the stamping process, the material passes through the corresponding upper and lower molds sequentially, forming a complete spring sheet product. In this embodiment, two spring sheets are obtained after one sequential stamping by multiple upper and lower molds. The following description of each lower mold structure introduces the technical solution of this application. Since the upper and lower molds cooperate during the stamping process, the corresponding upper mold structures will not be described in detail here.
[0034] There are two punching dies 41, both of which are equipped with "V" shaped grooves. The "V" shaped grooves of the two punching dies are arranged opposite each other. The upper punching die is pressed down into the "V" shaped groove of the lower punching die, so that two "V" shaped holes are punched out in the material at one time. The "V" shaped holes correspond to the V-shaped groove 21 structure in the spring sheet.
[0035] The first trimming die 42 and the second trimming die 43 are arranged in sequence. The groove shapes of the first trimming die 42 and the second trimming die 43 correspond to the structure of the first side 17 and the second side 16 of the spring sheet. The first trimming die 32 and the second trimming die 33 are pressed downward into the first trimming die 42 and the second trimming die 43 respectively, so that the stamping of the first side 17 and the second side 16 of the spring sheet is completed in two stampings during the batching process.
[0036] Reference Figure 9 There are two bending lower dies 44, each equipped with a bending groove. The bending grooves of the two bending lower dies 44 are arranged opposite each other. The bending upper die 34 is pressed downward into the bending groove of the bending lower die 44, so that the material is stamped out into two bent portions 18 in one go. The bending groove corresponds to the bent portion 18 structure in the spring sheet. (Refer to...) Figure 7 and Figure 8The bending groove has two first bending grooves on both sides, corresponding to the first bending edge 19 structure in the spring sheet. The bending upper die 34 presses downward into the bending groove of the bending lower die 44, so that the bending part 18 is stamped out with two first bending edges 19 at the same time. Similarly, a second bending groove is provided at the end of the bending groove away from the middle connection part of the two bending lower dies 44, which is used to stamp out a second bending edge 20 in the bending part 18 at the same time. A "tongue-shaped" bending protrusion is provided in the bending groove, which is used to stamp out an upward protrusion 23 and a third bending edge 24 on the protrusion 23 in the bending part 18 at the same time. An elliptical stamping groove is also provided in the bending groove, which is used to stamp out an elliptical groove 22 in the bending part 18 at the same time.
[0037] The blanking die 45 is provided with a "cross-shaped" groove, the shape of which corresponds to the structure of the cross connection part 46 between the two spring sheets. The blanking upper die 35 presses down into the blanking lower die 45, thereby stamping and cutting off the cross connection part 46 between the two spring sheets during the material preparation process, thus separating the two spring sheets.
[0038] The working principle of this application embodiment is as follows:
[0039] In the initial state, the elastic connection between the upper mold pad 2, the upper mold fixing plate 3, the upper mold fixing pad stripper plate 4, and the upper mold fixing stripper plate 5 is in a natural state, and the elastic connection between the lower concave template 6 and the lower concave mold fixing pin plate 7 is in a natural state.
[0040] When the power unit drives the upper template 1 to press downwards, the upper die fixed tap stripper plate 5 presses down on the lower concave template 6. The upper die fixed tap stripper plate 5 and the lower concave template 6 contact and press the material steel plate. When the power unit drives the upper template 1 to continue to move downwards, the elastic gap between the upper die pad 2, the upper die fixed tap plate 3, the upper die fixed tap pad stripper plate 4, and the upper die fixed tap stripper plate 5 is compressed. The elastic gap between the lower concave template 6 and the lower concave die fixed pin plate 7 is also compressed, so that the upper and lower dies of each part of the mold device cooperate one by one to press the material steel plate into shape.
[0041] After stamping, the power unit moves the upper template 1 to its initial state. At this time, the feeding steel plate is located on the upper surface of the lower recessed template 6, and the feeding steel plate continues to move horizontally under the drive of the conveying device. The spring sheet stamping die repeats the stamping process.
[0042] The steel plate is processed through five stamping processes in sequence: punching component 11, first trimming component 12, second trimming component 13, bending component 14, blanking component 15, and upper and lower dies of each component.
[0043] The formed spring sheet has a smooth, clean surface, free of cracks, scratches, and defects. Driven by the conveying device, the formed spring sheet is output from the spring sheet output port 47.
[0044] In this embodiment, the mold undergoes heat treatment to achieve a hardness of HRC 43°~45°.
[0045] This application embodiment achieves multiple processing steps for spring sheets within the same mold, eliminating the need to transfer the raw materials for spring sheet production to different molds and avoiding errors caused by material movement. Each process produces a pair of spring sheets instead of just one, saving raw materials and reducing waste. A single steel plate can produce multiple spring sheets. The steel plate is fed from one end of the mold and processed sequentially from left to right, saving steps, time, and improving the efficiency of spring sheet production.
[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A spring sheet stamping die, comprising an upper die and a lower die, the upper die comprising an upper template (1), an upper die pad (2), an upper die fixing plate (3), an upper die fixing pad stripper plate (4), and an upper die fixing pad stripper plate (5), the lower die comprising a lower recess template (6), a lower recess template fixing plate (7), a lower recess template pad (8), and a lower template (9), wherein the upper die fixing pad stripper plate (5) and the lower recess template (6) are used for feeding material, characterized in that, The upper die pad (2), upper die fixing plate (3), upper die fixing pad stripper plate (4), and upper die fixing stripper plate (5) are elastically connected. The lower concave template (6) and lower concave die fixing pin plate (7) are elastically connected. The material is fed from one end of the mold and passes through the punching component (11), the first trimming component (12), the second trimming component (13), the bending component (14), and the blanking component (15) in sequence. The punching component (11) is used to punch out a V-shaped groove (21) on the material. The material is cut in the first trimming part (12) to cut out the first side edge (17) of the spring sheet. The second side edge (16) of the spring sheet is cut out in the second trimming part (13). The material is bent into the shape of the spring sheet by stamping in the bending part (18) (14). The material is cut in the blanking part (15) to cut off the cross connection part (46) between the two spring sheets. The spring sheet is output from the other end of the mold. Two spring sheets are produced at the same time in one process after going through all the processes.
2. The spring sheet stamping die according to claim 1, characterized in that, The spring sheet stamping die is also provided with a base (10).
3. The spring sheet stamping die according to claim 2, characterized in that, The spring sheet stamping die is heat-treated to a hardness of HRC43°~45°.
4. The spring sheet stamping die according to claim 3, characterized in that, Multiple guide pillars (25) are provided between the upper template (1) and the lower template (9).
5. The spring sheet stamping die according to claim 4, characterized in that, The spring sheet stamping die is also equipped with a conveying device, which is used to push the material between the upper die fixed stripper plate (5) and the lower concave template (6).
6. The spring sheet stamping die according to claim 5, characterized in that, The punching component (11) includes an upper punching die (31) and a lower punching die (41). The upper punching die (31) presses down into the lower punching die (41), and the upper punching die (31) and the lower punching die (41) cooperate to punch out a V-shaped groove (21) for the material.
7. The spring sheet stamping die according to claim 6, characterized in that, The first trimming component (12) includes a first trimming upper die (32) and a first trimming lower die (42). The first trimming upper die (32) presses down into the first trimming lower die (42) to trim the material and trim the first side edge (17) of the spring sheet. The second trimming component (13) includes a second trimming upper die (33) and a second trimming lower die (43). The second trimming upper die (33) presses down into the second trimming lower die (43) to trim the second side edge (16) of the spring sheet.
8. The spring sheet stamping die according to claim 7, characterized in that, The bending part (18) (14) includes an upper bending die (34) and a lower bending die (44). The upper bending die (34) and the lower bending die (44) work together to bend the material into the shape of a spring sheet.
9. The spring sheet stamping die according to claim 8, characterized in that, The blanking component (15) includes a blanking upper die (35) and a blanking lower die (45). The blanking upper die (35) and the blanking lower die (45) cooperate to cut off the cross connection part (46) between the two spring sheets.