AMT diaphragm spring finger tip forming device

Abstract

The invention relates to the technical field of automobile clutches, and discloses an AMT diaphragm spring finger tip forming device which comprises a lower die plate, an upper die plate, a lower cushion plate arranged at the top of the lower die plate, a lower die base arranged at the top of the lower cushion plate and a discharging plate arranged at the top of the lower die base. The positioning ring is arranged in the middle of the top of the discharging plate, and the guide component is arranged between the lower die plate and the discharging plate. According to the AMT diaphragm spring finger tip forming device, through the optimized design of the upper die plate and the lower die plate, the forming process is efficient and smooth, compared with a traditional machining forming process, the production efficiency is greatly improved, the large-scale production requirement can be met, meanwhile, only a small number of components such as the pressing plate, the fastening pressing plate and the discharging plate need to be replaced, and the production cost is reduced. Therefore, diaphragm springs of different specifications can be produced quickly, the production stagnation time caused by die replacement is shortened, the utilization rate and production flexibility of equipment are improved, and the market competitiveness of enterprises is enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile clutch, and particularly relates to a forming device for a finger end of an AMT diaphragm spring. BACKGROUND

[0002] With the rapid development of the automobile industry, automatic mechanical transmission (AMT) is increasingly concerned due to its combination of the advantages of manual transmission and automatic transmission. In the AMT system, the clutch plays a crucial role in transmitting power, assisting gear shifting and protecting the entire system, and its performance directly affects the controllability and comfort of the vehicle. The mechanical performance of the diaphragm spring as the core component of the clutch plays a decisive role in the quality of the clutch assembly.

[0003] In particular, the finger end of the diaphragm spring, as the key part in direct contact with the release bearing, is crucial for its shape accuracy and surface quality. If the finger end shape accuracy is insufficient, it may cause the clutch to engage and disengage smoothly, affecting the smoothness and accuracy of gear shifting. If the surface quality is poor, it is prone to cause problems such as accelerated wear and noise, reducing the service life and reliability of the clutch.

[0004] Currently, the traditional diaphragm spring finger end forming process has many drawbacks. The machining forming process has low processing efficiency, which is difficult to meet the needs of large-scale production. At the same time, the equipment maintenance cost is high, and the material utilization rate is low, causing resource waste. In addition, the machine tool processing process is easily disturbed by external environmental factors, making it difficult to ensure the mechanical accuracy and surface quality consistency of the finger end forming, and the product quality fluctuates greatly. Although the die stamping forming improves the production efficiency to a certain extent, the elastic shrinkage of the material during the stamping process easily causes springback, making it difficult to ensure the forming quality of the complex structure finger end. For diaphragm spring finger ends with high shape accuracy and surface quality requirements, the traditional stamping process often falls short, and cannot meet the stringent requirements of the AMT system for clutch performance. SUMMARY

[0005] In view of the above problems of the existing machining forming process, such as low processing efficiency, difficulty in meeting the needs of large-scale production, high equipment maintenance cost, low material utilization rate, resource waste, and difficulty in ensuring the mechanical accuracy and surface quality consistency of the finger end forming during the machine tool processing process, the product quality fluctuates greatly, the present application is proposed.

[0006] Therefore, the application aims to provide an AMT diaphragm spring finger end forming device, which aims to make the forming process smooth and efficient through reasonable design of the upper and lower molds, cooperation of the lower support and the upper sleeve, and optimized layout of various components, so that the forming work of the diaphragm spring finger end can be completed through simple operation in the production process, the production efficiency is greatly improved compared with the traditional machining forming process, and the demand for large-scale production can be effectively met.

[0007] To solve the above technical problems, the application provides the following technical scheme: an AMT diaphragm spring finger end forming device, comprising a lower mold plate and an upper mold plate, the upper mold plate is located above the lower mold plate, a lower base plate is arranged on the top of the lower mold plate, a lower mold seat is arranged on the top of the lower base plate, a discharging plate is arranged on the top of the lower mold seat, a positioning ring is arranged at the middle position of the top of the discharging plate, a guide component is arranged between the lower mold plate and the discharging plate, a limiting component is arranged on the top of the lower mold plate, a buffer component is arranged between the lower mold plate and the discharging plate, an upper base plate is arranged on the bottom of the upper mold plate, an upper mold seat is arranged at the bottom end of the upper base plate, a pressing plate is arranged at the bottom end of the upper mold seat, and a fastening pressing plate is arranged at the bottom of the pressing plate.

[0008] As a preferred scheme of the AMT diaphragm spring finger end forming device, one end of the top of the lower mold plate is fixedly provided with a lower support on both sides, fixed grooves are arranged on both sides of one end of the top of the upper mold plate and penetrate the upper mold plate, an upper sleeve is arranged in the inner cavity of the fixed groove, the bottom end of the upper sleeve extends below the upper mold plate, a second limiting ring is arranged on the surface of the upper sleeve and below the upper mold plate, and the top end of the lower support slidably extends into the inner cavity of the upper sleeve.

[0009] As a preferred scheme of the AMT diaphragm spring finger end forming device, the guide component comprises three groups of guide columns arranged on the top of the lower mold plate, three groups of limiting circular grooves arranged at the edge of the top of the discharging plate, first communication holes arranged at the bottom end of the inner cavity of the limiting circular groove and penetrating the discharging plate.

[0010] As a preferred scheme of the AMT diaphragm spring finger end forming device, the guide component further comprises a guide sleeve arranged in the inner cavity of the first communication hole, the bottom end of the guide sleeve extends below the discharging plate, a positioning cover is arranged at the top end of the guide sleeve and located in the limiting circular groove, a first limiting ring is arranged on the surface of the guide sleeve and below the discharging plate, and the top end of the guide column slidably extends into the inner cavity of the guide sleeve.

[0011] As a preferred scheme of the AMT diaphragm spring finger end forming device, the limiting part comprises a limiting base arranged on both sides of the top of the lower die plate and a limiting hole arranged on the top of the limiting base.

[0012] As a preferred scheme of the AMT diaphragm spring finger end forming device, second communication holes are arranged on both sides of the top of the stripper plate, the second communication holes penetrate the stripper plate, a limiting rod is arranged in the inner cavity of the second communication hole, and the bottom end of the limiting rod extends into the inner cavity of the limiting base through the limiting hole.

[0013] As a preferred scheme of the AMT diaphragm spring finger end forming device, the buffer part comprises a plurality of upper installation grooves arranged on the top of the lower die plate and arranged in a circle on the surface of the lower base plate, a plurality of lower installation grooves arranged on the bottom of the stripper plate and corresponding to the plurality of upper installation grooves, a supporting rod arranged in the inner cavity of the upper installation groove, and a buffer spring arranged on the surface of the supporting rod.

[0014] As a preferred scheme of the AMT diaphragm spring finger end forming device, a plurality of supporting blocks are fixedly arranged on the bottom of the upper die plate and arranged in a circle on the surface of the upper base plate, and the bottom end of the supporting block is in contact with the top of the pressing plate.

[0015] Compared with the prior art, the present application has at least the following beneficial effects: 1. The optimized upper die plate and lower die plate design of the present application makes the forming process efficient and smooth, the production efficiency is greatly improved compared with the traditional machining forming process, the large-scale production demand can be met, at the same time, only a small number of parts such as the pressing plate, the fastening pressing plate and the stripper plate need to be replaced, the production of different specifications of diaphragm springs can be quickly realized, the production stagnation time caused by replacing the mold is further reduced, the utilization rate and production flexibility of the equipment are improved, and the market competitiveness of the enterprise is enhanced.

[0016] 2. The positioning ring and the lower die seat in the lower die plate and the pressing plate and other parts in the upper die plate cooperate to ensure the positioning accuracy and forming accuracy of the diaphragm spring finger end in the forming process, effectively avoid the deviation and error in the forming process, significantly improve the shape accuracy and size accuracy of the finger end, in addition, the device optimizes the forming process, can more reasonably utilize the raw materials, reduces the material waste in the processing process, improves the forming efficiency and utilization rate of the materials, and reduces the production cost.

[0017] 3、The lower die plate of the present application has water channels between the lower base plate and the lower die seat, which are used for heat dissipation and increase the strength and rigidity of the lower die plate, and the load can be buffered by the buffering component, the upper die seat and the upper base plate in the upper die plate can bear the pressure load in the molding process, and in cooperation with the multiple sets of supporting blocks, the load generated by the strong pressure during the formation of the finger end is shared, which ensures the stability and reliability of the device during long-term use. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an overall structure diagram of the AMT diaphragm spring finger end forming device of the present application. Figure 2 It is an expanded three-dimensional structure diagram of the lower die plate and the upper die plate of the AMT diaphragm spring finger end forming device of the present application. Figure 3 It is an exploded three-dimensional structure diagram of the AMT diaphragm spring finger end forming device of the present application. Figure 4 It is an expanded three-dimensional structure diagram of the lower die plate of the AMT diaphragm spring finger end forming device of the present application. Figure 5 It is a bottom view three-dimensional structure diagram of the stripper plate of the AMT diaphragm spring finger end forming device of the present application. Figure 6 It is a three-dimensional structure diagram of the lower die plate of the AMT diaphragm spring finger end forming device of the present application. Figure 7 It is a bottom view three-dimensional structure diagram of the upper die plate of the AMT diaphragm spring finger end forming device of the present application. Figure 8 It is an expanded three-dimensional structure diagram of the upper die plate of the AMT diaphragm spring finger end forming device of the present application.

[0019] Explanation of reference signs: 1, lower die plate; 2, lower base plate; 3, lower die seat; 4, stripper plate; 5, positioning ring; 6, guide component; 61, guide column; 62, guide sleeve; 63, first limiting ring; 64, first communication hole; 65, limiting circular groove; 66, positioning cover; 7, limiting component; 71, limiting base; 72, limiting hole; 73, second communication hole; 74, limiting rod; 8, buffering component; 81, upper mounting groove; 82, supporting rod; 83, lower mounting groove; 84, buffering spring; 9, lower support column; 10, upper column sleeve; 101, fixed slot hole; 102, second limiting ring; 11, upper die plate; 12, supporting block; 13, pressing plate; 14, fastening pressing plate; 15, upper die seat; 16, upper base plate. DETAILED DESCRIPTION

[0020] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the drawings.

[0021] With reference to Figures 1-8 For the embodiment of the present application, an AMT diaphragm spring finger end forming device is provided, which comprises a lower die plate 1 and an upper die plate 11, the upper die plate 11 is located above the lower die plate 1, a lower base plate 2 is arranged on the top of the lower die plate 1, a lower die seat 3 is arranged on the top of the lower base plate 2 and is connected to the top of the lower base plate 2 by bolts, the inside of the lower base plate 2 and the lower die seat 3 has a water channel, which is communicated with the outside through a pipeline, and plays a role of heat dissipation of the lower die plate 1, a discharging plate 4 is arranged on the top of the lower die seat 3 and is connected to the lower die seat 3 by bolts, a positioning ring 5 is arranged at the middle position of the top of the discharging plate 4 and is connected to the discharging plate 4 by bolts, the positioning ring 5 plays a role of center positioning of the mold at the same time, a guide component 6 is arranged between the lower die plate 1 and the discharging plate 4, a limiting component 7 is arranged on the top of the lower die plate 1, a buffer component 8 is arranged between the lower die plate 1 and the discharging plate 4, an upper base plate 16 is arranged on the bottom of the upper die plate 11, an upper die seat 15 is arranged at the bottom end of the upper base plate 16 and is connected to the upper base plate 16 by bolts, a pressing plate 13 is arranged at the bottom end of the upper die seat 15, and a fastening pressing plate 14 is arranged at the bottom of the pressing plate 13 and is connected to the pressing plate 13 by bolts.

[0022] A plurality of support blocks 12 are fixedly installed at the bottom of the upper die plate 11 and are arranged in a circle on the surface of the upper base plate 16, the bottom end of the support block 12 is in contact with the top of the pressing plate 13, and the bottom end of the support block 12 is connected to the pressing plate 13 by bolts, and the support block 12 can share the load generated by strong pressure during finger end forming.

[0023] Two lower struts 9 are fixedly installed at both sides of one end of the top of the lower die plate 1, a fixed slot hole 101 is arranged at both sides of one end of the top of the upper die plate 11 and penetrates the upper die plate 11, an upper column sleeve 10 is arranged in the inner cavity of the fixed slot hole 101, the bottom end of the upper column sleeve 10 extends below the upper die plate 11, a second limiting ring 102 is arranged on the surface of the upper column sleeve 10 and below the upper die plate 11, and the top end of the lower strut 9 slides and extends into the inner cavity of the upper column sleeve 10.

[0024] The guide component 6 comprises three guide columns 61 arranged on the top of the lower die plate 1, three limiting circular grooves 65 arranged at the edge of the top of the discharging plate 4, first communication holes 64 arranged at the bottom end of the inner cavities of the limiting circular grooves 65, and the first communication holes 64 penetrate the discharging plate 4.

[0025] The guide part 6 further comprises a guide sleeve 62 arranged in the inner cavity of the first communication hole 64, the bottom end of the guide sleeve 62 extends below the stripper plate 4, a positioning cover 66 arranged at the top end of the guide sleeve 62, the positioning cover 66 is located in the limiting circular groove 65, a first limiting ring 63 arranged on the surface of the guide sleeve 62 and below the stripper plate 4, the top end of the guide column 61 extends into the inner cavity of the guide sleeve 62, and the up-and-down movement of the stripper plate 4 can be controlled through the guide part 6.

[0026] The limiting part 7 comprises a limiting base 71 arranged on both sides of the top of the lower die plate 1, and a limiting hole 72 arranged on the top of the limiting base 71, two second communication holes 73 are arranged on both sides of the top of the stripper plate 4 and extend through the stripper plate 4, a limiting rod 74 arranged in the inner cavity of the second communication hole 73, and the bottom end of the limiting rod 74 extends into the inner cavity of the limiting hole 72 through the limiting hole 72, and the limiting part 7 ensures the safety of the device.

[0027] The buffer part 8 comprises a plurality of upper installation grooves 81 arranged on the top of the lower die plate 1 and arranged in a circular manner on the surface of the lower base plate 2, a plurality of lower installation grooves 83 arranged on the bottom of the stripper plate 4 and corresponding to the plurality of upper installation grooves 81, a supporting rod 82 arranged at the bottom of the inner cavity of the upper installation groove 81, and a buffer spring 84 arranged on the surface of the supporting rod 82, and the buffer part 8 can buffer the load.

[0028] During use, different specifications of diaphragm springs can be produced by unscrewing the pressing plate 13 and the bolts on the stripper plate 4 and the fastening pressing plate 14, the mold can be quickly replaced, the production stagnation time caused by replacing the mold is reduced, the utilization rate and production flexibility of the equipment are improved, and the internal waterway of the lower base plate 2 and the lower die seat 3 is connected with the outside through a pipeline, which plays a role in heat dissipation of the lower die plate 1 when the AMT diaphragm spring finger end forming is performed, and the positioning ring 5 is connected with the stripper plate 4 through bolts, the lower mold of the finger end forming mold is nested outside the positioning ring, and the positioning ring plays a role in center positioning of the mold.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. An AMT diaphragm spring finger tip forming device comprising a lower die plate (1) and an upper die plate (11), characterized in that: The upper die plate (11) is located above the lower die plate (1), the lower base plate (2) is arranged on the top of the lower die plate (1), the lower die seat (3) is arranged on the top of the lower base plate (2), the discharge plate (4) is arranged on the top of the lower die seat (3), the positioning ring (5) is arranged at the middle position of the top of the discharge plate (4), the guide component (6) is arranged between the lower die plate (1) and the discharge plate (4), the limiting component (7) is arranged on the top of the lower die plate (1), the buffer component (8) is arranged between the lower die plate (1) and the discharge plate (4), the upper base plate (16) is arranged on the bottom of the upper die plate (11), the upper die seat (15) is arranged at the bottom end of the upper base plate (16), the pressing plate (13) is arranged at the bottom end of the upper die seat (15), and the fastening pressing plate (14) is arranged on the bottom of the pressing plate (13).

2. The AMT diaphragm spring finger tip forming device of claim 1, wherein: The lower support (9) is fixedly installed on both sides of one end of the top of the lower die plate (1), the fixed slot hole (101) is arranged on both sides of one end of the top of the upper die plate (11), the fixed slot hole (101) penetrates the upper die plate (11), the upper column sleeve (10) is arranged in the inner cavity of the fixed slot hole (101), the bottom end of the upper column sleeve (10) extends below the upper die plate (11), the second limiting ring (102) is arranged on the surface of the upper column sleeve (10) and below the upper die plate (11), and the top end of the lower support (9) slidably extends into the inner cavity of the upper column sleeve (10).

3. The AMT diaphragm spring finger tip forming apparatus of claim 2, wherein: The guide component (6) comprises three groups of guide columns (61) arranged on the top of the lower die plate (1), three groups of limiting circular grooves (65) arranged at the edges of the top of the discharge plate (4), first communication holes (64) arranged at the bottom end of the inner cavities of the limiting circular grooves (65), and the first communication holes (64) penetrating the discharge plate (4).

4. The AMT diaphragm spring finger tip forming apparatus of claim 3, wherein: The guide component (6) further comprises a guide sleeve (62) arranged in the inner cavity of the first communication hole (64), the bottom end of the guide sleeve (62) extends below the discharge plate (4), a positioning cover (66) arranged at the top end of the guide sleeve (62) and located in the limiting circular groove (65), a first limiting ring (63) arranged on the surface of the guide sleeve (62) and below the discharge plate (4), and the top end of the guide column (61) slidably extends into the inner cavity of the guide sleeve (62).

5. The AMT diaphragm spring finger tip forming device of claim 4, wherein: The limiting component (7) comprises a limiting base (71) arranged on both sides of the top of the lower die plate (1), and a limiting hole (72) arranged on the top of the limiting base (71).

6. The AMT diaphragm spring finger tip forming device of claim 5, wherein: Second communication holes (73) are formed on both sides of the top of the discharge plate (4), the second communication holes (73) penetrate the discharge plate (4), a limiting rod (74) is arranged in the inner cavity of the second communication hole (73), and the bottom end of the limiting rod (74) extends into the inner cavity of the limiting base (71) through the limiting hole (72).

7. The AMT diaphragm spring finger tip forming device of claim 6, wherein: The buffer component (8) comprises a plurality of upper installation grooves (81) arranged on the top of the lower die plate (1) and on the surface of the lower base plate (2), a plurality of lower installation grooves (83) arranged on the bottom of the discharge plate (4) and corresponding to the upper installation grooves (81), a support rod (82) arranged in the inner cavity of the upper installation groove (81), and a buffer spring (84) arranged on the surface of the support rod (82).

8. The AMT diaphragm spring finger tip forming device of claim 7, wherein: The bottom of the upper die plate (11) is fixedly provided with a plurality of support blocks (12) arranged on the surface of the upper base plate (16), and the bottom of the support block (12) is in contact with the top of the pressing plate (13).

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