Hot-formed wave-shaped sheet of a clutch driven plate

Abstract

The utility model relates to thermoforming frock technical field especially relates to the thermoforming waveform piece of clutch driven plate, including organic frame, the fixedly connected with lower heat preservation box on the frame, the fixedly connected with heating assembly in lower heat preservation box, heating assembly is used for adjusting the temperature of lower heat preservation box, the middle of heating assembly is equipped with lower mould, lower mould fixedly connects on lower heat preservation box, be equipped with a plurality of insertion hole on lower mould, a plurality of forming blocks are movably connected on insertion hole, forming block is used for realizing hot press forming, a plurality of positioning pins are movably connected on insertion hole, the utility model discloses through the forming block and positioning pin of detachable, make frock to be able to quickly adapt the production demand of different specifications waveform piece, in the hot press forming process, the position stability of waveform piece is ensured to accurate positioning and orientation, the dimensional accuracy of product is improved significantly, the production efficiency is improved greatly, and the production cost is reduced, simultaneously, detachable structure is convenient for frock maintenance and replacement, improves the versatility and economy of frock.

Description

Technical Field

[0001] This utility model relates to the field of thermoforming tooling technology, and in particular to thermoformed corrugated sheets for clutch driven discs. Background Technology

[0002] The hot-formed corrugated sheet of the clutch driven plate is a corrugated elastic steel sheet manufactured using a heat treatment process. Its core function is to optimize the smoothness of clutch engagement and power transmission performance through axial elastic deformation. Utilizing its unique corrugated structure, the sheet gradually flattens during clutch engagement, causing the pressure between the friction plate and the driving plate to increase smoothly. This effectively reduces shock during starting or shifting, improving driving comfort. Simultaneously, its radial corrugated surface design automatically adjusts the friction plate position, ensuring uniform contact pressure distribution, avoiding localized wear, and extending the friction plate's service life. As a key buffer component of the clutch, it can also mitigate shock through deformation under overload conditions, protecting the transmission system from mechanical damage. This design allows the clutch to maintain efficient and smooth power transmission even under frequent start-stop or shifting conditions, making it an indispensable component of modern vehicle transmission systems.

[0003] In the production process of driven disc assembly axial pressure thermoforming corrugated sheets, the existing tooling has many problems. During thermoforming, due to the unreasonable tooling structure, heat cannot be evenly distributed on the corrugated sheet, resulting in severe axial pressure heat attenuation. Axial pressure heat attenuation reduces the mechanical properties of the corrugated sheet material, affecting its stability and service life when the driven disc assembly is working. At the same time, the positioning and support structure of the existing tooling is not precise enough, making it difficult to meet the production requirements of high-precision products. The positioning components are fixed and cannot be disassembled, making it difficult to flexibly adjust when facing the production needs of corrugated sheets of different specifications, resulting in poor adaptability. Moreover, during the thermoforming process, the corrugated sheet is prone to displacement due to inaccurate positioning, leading to reduced product accuracy, increased scrap rate, and seriously restricting the improvement of production efficiency and economic benefits.

[0004] Therefore, to address the issues of unreasonable tooling structure affecting its stability and service life, and insufficient positioning and support structure leading to reduced product accuracy and increased scrap rate, a thermoformed wave sheet for the clutch driven plate can be designed to effectively reduce the thermal attenuation of the driven plate assembly shaft pressure and improve product accuracy. Utility Model Content

[0005] To overcome the problems of unreasonable tooling structure affecting its stability and service life, and insufficient precision of positioning and support structure leading to reduced product accuracy and increased scrap rate.

[0006] The technical solution of this utility model is as follows: a thermoformed corrugated sheet for a clutch driven plate, including a frame; a lower heat preservation box is fixedly connected to the frame, and a heating component is fixedly connected to the lower heat preservation box. The heating component is used to adjust the temperature of the lower heat preservation box. A lower mold is provided in the middle of the heating component. The lower mold is fixedly connected to the lower heat preservation box. The lower mold is provided with several insertion holes. Several forming blocks are movably connected to the insertion holes. The forming blocks are used to realize hot pressing. Several positioning pins are movably connected to the insertion holes. The positioning pins are used to accurately position the workpiece.

[0007] Preferably, during thermoforming, the corresponding forming block is selected and placed on the lower mold, and the forming block is quickly fixed through the insertion hole. Then, according to the positioning hole of the workpiece, the corresponding positioning pin is inserted into the insertion hole of the lower mold to complete the precise positioning of the workpiece. Then, the temperature is adjusted by the heating component to raise the temperature in the lower insulation box to the specified value. At the same time, the lower insulation box is used for heat insulation to prevent heat loss.

[0008] Preferably, the heating assembly includes a heating housing, a heating power supply, and a heating coil. The heating housing is fixedly connected to the frame, the heating power supply is fixedly connected to the heating housing, the heating coil is wound inside the heating housing, and the heating power supply and the heating coil are electrically connected.

[0009] Preferably, two drive components are fixedly connected to the top of the frame, and the output end of the drive components is fixedly connected to the upper insulation cover. The drive components are used to drive the upper insulation cover to perform linear motion.

[0010] Preferably, the drive assembly includes a first hydraulic cylinder and a first hydraulic rod. The first hydraulic cylinder is fixedly connected to the frame, and the output end of the first hydraulic cylinder is fixedly connected to the first hydraulic rod. The first hydraulic cylinder is used to output pressure to the first hydraulic rod to perform linear motion, and the other end of the first hydraulic rod is fixedly connected to the upper insulation cover.

[0011] Preferably, an upper pressure component is provided between the two drive components. The upper pressure component is fixedly connected to the frame, and its output end is movably connected to the lower mold. The upper pressure component is used to generate pressure on the lower mold.

[0012] Preferably, the upper pressure assembly includes a second hydraulic cylinder, a second hydraulic rod, and an upper mold. The second hydraulic cylinder is fixedly connected to the frame, and the output end of the second hydraulic cylinder is fixedly connected to the second hydraulic rod. The second hydraulic cylinder is used to output pressure to the second hydraulic rod to perform linear motion. The other end of the second hydraulic rod is fixedly connected to the upper mold, and the upper mold and the lower mold are movably connected.

[0013] Preferably, two guide rods are fixedly connected to both sides of the frame, and the guide rods are slidably connected to the upper insulation cover.

[0014] The beneficial effects of this utility model are:

[0015] 1. By utilizing detachable forming blocks and positioning pins, the tooling can quickly adapt to the production needs of different specifications of corrugated sheets. During the hot pressing process, precise positioning and guidance ensure the stability of the corrugated sheet position, significantly improving the dimensional accuracy of the product. The key dimension deviation is controlled within ±0.02mm, reducing the scrap rate by 2%, greatly improving production efficiency and reducing production costs. At the same time, the detachable structure facilitates the maintenance and replacement of the tooling, improving the versatility and economy of the tooling.

[0016] 2. The installation of a lower insulation box and an upper insulation cover greatly improves the heat uniformity of the corrugated sheet. During the axial pressing process of the driven disc assembly, the axial pressing heat decay is 9%, which effectively ensures the mechanical properties of the corrugated sheet material and improves the overall quality and service life of the driven disc assembly. Attached Figure Description

[0017] Figure 1 The diagram shown is a schematic representation of the overall three-dimensional structure of this utility model.

[0018] Figure 2 The diagram shown is a schematic cross-sectional view of the overall structure of this utility model.

[0019] Figure 3 The diagram shown is a schematic representation of the lower insulation box structure of this utility model.

[0020] Figure 4 The diagram shown is a cross-sectional view of the heating component of this utility model.

[0021] Figure 5 The diagram shown is a cross-sectional view of the pressure component of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Lower insulation box; 301. Heating shell; 302. Heating power supply; 303. Heating coil; 4. Lower mold; 401. Insertion hole; 5. Forming block; 6. Positioning pin; 701. First hydraulic cylinder; 702. First hydraulic rod; 8. Upper insulation cover; 9. Guide rod; 1001. Second hydraulic cylinder; 1002. Second hydraulic rod; 1003. Upper mold. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figures 1-5This utility model provides an embodiment of a thermoformed corrugated sheet for a clutch driven plate, comprising a frame 1; a lower insulation box 2 is fixedly connected to the frame 1, and a heating component is fixedly connected to the lower insulation box 2. The heating component is used to regulate the temperature of the lower insulation box 2. A lower mold 4 is provided in the middle of the heating component. The lower mold 4 is fixedly connected to the lower insulation box 2. The lower mold 4 has several insertion holes 401. Several forming blocks 5 are movably connected to the insertion holes 401. The forming blocks 5 are used to achieve thermoforming. Several positioning pins 6 are movably connected to the insertion holes 401. The positioning pins 6 are used to accurately position the workpiece. During thermoforming, the corresponding forming block 5 is selected and placed on the lower mold 4. The forming block 5 is quickly fixed through the insertion holes 401. Then, according to the positioning hole of the workpiece, the corresponding positioning pin 6 is inserted into the insertion hole 401 of the lower mold 4 to complete the accurate positioning of the workpiece. The temperature is then regulated by the heating component to raise the temperature in the lower insulation box 2 to a specified value. At the same time, the lower insulation box 2 is used for heat insulation to prevent heat loss.

[0025] Please see Figures 1-4 In this embodiment, the heating assembly includes a heating housing 301, a heating power supply 302, and a heating coil 303. The heating housing 301 is fixedly connected to the frame 1, the heating power supply 302 is fixedly connected to the heating housing 301, and the heating coil 303 is wound inside the heating housing 301. The heating power supply 302 and the heating coil 303 are electrically connected. The heating power supply 302 supplies current to the heating coil 303, causing the heating coil 303 to heat up, which in turn heats the heating housing 301, achieving contactless heating. Two drive assemblies are fixedly connected to the top of the frame 1. The output end of each drive assembly is fixedly connected to an upper insulation cover 8. The drive assemblies are used to drive the upper insulation cover 8 to perform linear motion. The two drive assemblies drive the upper insulation cover... 8 performs linear motion. When the drive assembly drives the upper insulation cover 8 downward, it makes the lower insulation box 2 and the upper insulation cover 8 precisely fit together to ensure the sealing of the production process. The drive assembly includes a first hydraulic cylinder 701 and a first hydraulic rod 702. The first hydraulic cylinder 701 is fixedly connected to the frame 1. The output end of the first hydraulic cylinder 701 is fixedly connected to the first hydraulic rod 702. The first hydraulic cylinder 701 is used to output pressure to the first hydraulic rod 702 to perform linear motion. The other end of the first hydraulic rod 702 is fixedly connected to the upper insulation cover 8. By using the output pressure of the first hydraulic cylinder 701, the first hydraulic rod 702 is pushed to perform linear motion. The first hydraulic rod 702 drives the upper insulation cover 8 to perform linear motion, realizing the two states of sealing and opening.

[0026] Please see Figures 1-5In this embodiment, an upper pressing component is provided between the two driving components. The upper pressing component is fixedly connected to the frame 1, and its output end is movably connected to the lower mold 4. The upper pressing component is used to generate pressure on the lower mold 4. By using the linear motion of the upper pressing component, a large pressure is generated on the lower mold 4 below, so that the workpiece is pressed and shaped. The upper pressing component includes a second hydraulic cylinder 1001, a second hydraulic rod 1002, and an upper mold 1003. The second hydraulic cylinder 1001 is fixedly connected to the frame 1, and its output end is fixedly connected to the second hydraulic rod 1002. The second hydraulic cylinder 1001 is used to output pressure to the second... The hydraulic rod 1002 moves linearly. The other end of the second hydraulic rod 1002 is fixedly connected to the upper mold 1003. The upper mold 1003 and the lower mold 4 are movably connected. The second hydraulic cylinder 1001 outputs pressure to the second hydraulic rod 1002, pushing the second hydraulic rod 1002 to move linearly, which drives the lower upper mold 1003 to move linearly, causing the upper mold 1003 to move to the lower mold 4 to press the workpiece in the middle. Two guide rods 9 are fixedly connected to both sides of the frame 1. The guide rods 9 are slidably connected to the upper insulation cover 8. When the upper insulation cover 8 moves, it slides on the guide rods 9 to limit the movement of the upper insulation cover 8.

[0027] During operation, when thermoforming, the corresponding forming block 5 is placed on the lower mold 4 and quickly fixed through the insertion hole 401. Then, according to the positioning hole of the workpiece, the corresponding positioning pin 6 is inserted into the insertion hole 401 of the lower mold 4 to complete the precise positioning of the workpiece. Then, the heating power supply 302 supplies current to the heating coil 303 to heat up the heating coil 303, which in turn heats up the heating shell 301, achieving non-contact heating. Then, the first hydraulic cylinder 701 outputs pressure to push the first hydraulic rod 702. The first hydraulic rod 702 drives the upper insulation cover 8 to move linearly. At the same time, the upper insulation cover 8 slides on the guide rod 9 to limit the movement of the upper insulation cover 8, so that the upper insulation cover 8 and the lower insulation box 2 are sealed to prevent heat loss. Then, the second hydraulic cylinder 1001 outputs pressure to the second hydraulic rod 1002, pushing the second hydraulic rod 1002 to move linearly, driving the upper mold 1003 below to move linearly, so that the upper mold 1003 moves to the lower mold 4 to press the workpiece in the middle until the pressing is completed.

[0028] Through the above steps, the detachable forming block 5 and positioning pin 6 enable the tooling to quickly adapt to the production needs of different specifications of corrugated sheets. During the hot pressing process, precise positioning and guidance ensure the stability of the corrugated sheet position, significantly improving the dimensional accuracy of the product. The key dimension deviation is controlled within ±0.02mm, reducing the scrap rate by 2%, greatly improving production efficiency and reducing production costs. At the same time, the detachable structure facilitates the maintenance and replacement of the tooling, improving its versatility and economy. The lower insulation box 2 and upper insulation cover 8 are also provided, which greatly improve the heat uniformity of the corrugated sheet. During the axial pressing process of the driven plate assembly, the axial pressing heat decay is 9%, effectively ensuring the mechanical properties of the corrugated sheet material and improving the overall quality and service life of the driven plate assembly. This solves the problems of unreasonable tooling structure affecting its stability and service life, and insufficient precision of positioning and support structure leading to reduced product accuracy and increased scrap rate.

Claims

1. A thermoformed corrugated sheet for a clutch driven plate, comprising a frame (1); characterized in that: A lower insulation box (2) is fixedly connected to the frame (1). A heating component is fixedly connected to the lower insulation box (2). The heating component is used to adjust the temperature of the lower insulation box (2). A lower mold (4) is provided in the middle of the heating component. The lower mold (4) is fixedly connected to the lower insulation box (2). Several insertion holes (401) are provided on the lower mold (4). Several forming blocks (5) are movably connected to the insertion holes (401). The forming blocks (5) are used to realize hot pressing. Several positioning pins (6) are movably connected to the insertion holes (401). The positioning pins (6) are used to accurately position the workpiece.

2. The thermoformed corrugated sheet of the clutch driven plate according to claim 1, characterized in that: The heating assembly includes a heating housing (301), a heating power supply (302), and a heating coil (303). The heating housing (301) is fixedly connected to the frame (1), the heating power supply (302) is fixedly connected to the heating housing (301), and the heating coil (303) is wound inside the heating housing (301). The heating power supply (302) and the heating coil (303) are electrically connected.

3. The thermoformed corrugated sheet of the clutch driven plate according to claim 1, characterized in that: Two drive components are fixedly connected to the top of the frame (1). The output end of the drive components is fixedly connected to the upper heat insulation cover (8). The drive components are used to drive the upper heat insulation cover (8) to perform linear motion.

4. The thermoformed corrugated sheet of the clutch driven plate according to claim 3, characterized in that: The drive assembly includes a first hydraulic cylinder (701) and a first hydraulic rod (702). The first hydraulic cylinder (701) is fixedly connected to the frame (1). The output end of the first hydraulic cylinder (701) is fixedly connected to the first hydraulic rod (702). The first hydraulic cylinder (701) is used to output pressure to the first hydraulic rod (702) for linear motion. The other end of the first hydraulic rod (702) is fixedly connected to the upper heat insulation cover (8).

5. The thermoformed corrugated sheet of the clutch driven plate according to claim 4, characterized in that: An upper pressure component is provided between the two drive components. The upper pressure component is fixedly connected to the frame (1). The output end of the upper pressure component is movably connected to the lower mold (4). The upper pressure component is used to generate pressure on the lower mold (4).

6. The thermoformed corrugated sheet of the clutch driven plate according to claim 5, characterized in that: The upper pressure assembly includes a second hydraulic cylinder (1001), a second hydraulic rod (1002), and an upper mold (1003). The second hydraulic cylinder (1001) is fixedly connected to the frame (1). The output end of the second hydraulic cylinder (1001) is fixedly connected to the second hydraulic rod (1002). The second hydraulic cylinder (1001) is used to output pressure to the second hydraulic rod (1002) for linear motion. The other end of the second hydraulic rod (1002) is fixedly connected to the upper mold (1003). The upper mold (1003) and the lower mold (4) are movably connected.

7. The thermoformed corrugated sheet of the clutch driven plate according to claim 4, characterized in that: The frame (1) has two guide rods (9) fixedly connected on both sides, and the guide rods (9) and the upper insulation cover (8) are slidably connected.

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