Brake cover extrusion die

Abstract

The utility model relates to the technical field of brake cover processing, in particular to a brake cover extrusion die which comprises an upper die and a lower die, a driving piece used for pushing the upper die to move towards the lower die is arranged on the upper die, a punch core is fixedly arranged on the upper die, the punch core is arranged towards the lower die, a female die is arranged in the lower die, and the lower die is provided with a punch hole. A gap is reserved between the punch core and the female die to form a forming cavity, and the forming cavity corresponds to the shape of a product. The upper die and the lower die are arranged, during stamping, raw materials only need to be directly placed in the female die, the punch core and the female die are directly matched to form the forming cavity, the raw materials deform in the forming cavity, a cup-shaped product with steps can be formed in one step, the die pressing procedure is reduced, and product preparation can be completed without advanced machining; and a plurality of devices are not needed for processing, so that the processing convenience is further improved, and the processing cost is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of brake cover processing, and in particular to an extrusion die for a brake cover. Background Art

[0002] A brake cover is a component used in an intelligent control module, shaped like a cup, having a stepped shape on the outer wall and an inner hole on the inner wall. The brake cover is usually processed by stamping. After stamping, due to the high machining accuracy of the inner hole, additional processing is required.

[0003] Under the existing technology, the stamping of the brake cover is usually divided into two steps. First, the raw material is processed into a cup shape through prior processing, and then the cup-shaped raw material is subjected to secondary stamping to form the stepped structure on the outer wall. The processing steps are numerous, and multiple devices are required, resulting in high costs and low efficiency. Summary of the Utility Model

[0004] To solve the problem that the stamping of the brake cover under the existing technology is divided into two steps, where the raw material needs to be processed into a cup shape through prior processing and then the cup-shaped raw material is subjected to secondary stamping to form the stepped structure on the outer wall, with numerous processing steps, multiple devices required, high costs and low efficiency, the present application provides an extrusion die for a brake cover, and the specific solution is as follows.

[0005] An extrusion die for a brake cover includes an upper die and a lower die. A driving member for pushing the upper die towards the lower die is provided on the upper die. A punch core is fixedly provided on the upper die, and the punch core faces the lower die. A concave die is provided in the lower die, and a gap is left between the punch core and the concave die to form a forming cavity, and the forming cavity is set corresponding to the shape of the product.

[0006] By adopting the above technical solution, the upper die and the lower die are provided. When stamping, only the raw material needs to be directly placed in the concave die, and the forming cavity is directly formed by the cooperation of the punch core and the concave die. The raw material deforms in the forming cavity, and a cup-shaped product with a stepped setting can be formed in one step, reducing the die pressing process, completing the preparation of the product without prior processing, and also eliminating the need to use multiple devices for processing, thereby further improving the processing convenience and reducing the processing cost.

[0007] Optionally, a forming inclined surface is provided on the concave die. The forming inclined surface is used to abut against the raw material, and the side of the forming inclined surface close to the center of the lower die is lower than the side far from the center of the lower die.

[0008] By adopting the above technical solution, the forming inclined surface is provided on the concave die, and the forming inclined surface can exactly correspond to the outer wall of the raw material to form a stepped shape, so that the raw material can directly form a stepped shape on the outer wall when receiving stamping.

[0009] Optionally, a mating inclined surface is provided on the punch core corresponding to the forming inclined surface. The mating inclined surface is also used to abut against the raw material, and the inclination direction of the forming inclined surface is the same as that of the mating inclined surface.

[0010] By adopting the above technical solution, a mating inclined surface is provided on the punch core. The mating inclined surface cooperates with the forming inclined surface on the female die, which can further extrude the raw material to form the required shape, reduce the situation of unqualified products caused by unilateral extrusion resulting in product deformation, and thus improve the product quality.

[0011] Optionally, the mating inclined surface is arranged parallel to the forming inclined surface.

[0012] By adopting the above technical solution, the mating inclined surface is arranged parallel to the forming inclined surface, so that the inner and outer walls of the raw material can be formed in the same shape and angle during forming, reducing the situation of cracking of the raw material caused by different inner and outer walls of the raw material, and further improving the product quality and qualification rate.

[0013] Optionally, the bottoms of the mating inclined surface and the forming inclined surface are located on the same horizontal plane, and the top of the mating inclined surface is higher than the top of the forming inclined surface.

[0014] By adopting the above technical solution, the bottom of the mating inclined surface and the bottom of the forming inclined surface are arranged on the same horizontal plane, while the top of the mating inclined surface is higher than the top of the forming inclined surface. Since the mating inclined surface is located on the inner wall, a relatively large overall area is required to prevent the bending part from being damaged during forming. And the bottom of the mating inclined surface and the bottom of the forming inclined surface being on the same horizontal plane can reduce the height difference during extrusion, further reducing the damage situation.

[0015] Optionally, a piston is further provided on the lower die. The female die is provided with a relief hole corresponding to the piston. The piston is embedded in the relief hole and is slidably connected to the relief hole. A knockout rod for pushing the piston is further provided in the lower die.

[0016] By adopting the above technical solution, a knockout rod and a piston are provided on the lower die. The piston can not only support the raw material so that the raw material is pressed to form a product, but also push out the product by the piston after the processing is completed, thus realizing the discharging and further improving the convenience of product processing.

[0017] Optionally, a punch sleeve is provided on the outside of the punch core. The outside of the punch sleeve is used to abut against the die wall of the female die, and the bottom of the punch sleeve is used to abut against the raw material.

[0018] By adopting the above technical solution, the punch sleeve can block the upper end of the raw material and limit the upward deformation of the raw material when the raw material is pressed, thereby reducing the situation that the product does not meet the production requirements due to the upward deformation of the raw material during the pressing process, and improving the product qualification rate and product quality.

[0019] Optionally, the upper end of the punch core is embedded in the punch sleeve, and the lower end of the punch core extends out of the punch sleeve.

[0020] By adopting the above technical solution, the punch core is embedded in the punch sleeve, and the lower end of the punch core extends out of the punch sleeve, which is convenient for the punch core to cooperate with the female die. The punch sleeve can also play a positioning role for the punch core, reducing the deviation during die casting.

[0021] To sum up, the present application has at least the following beneficial effects:

[0022] 1. The present application solves the problem that in the prior art, the stamping and forming of the brake cover is divided into two steps. It is necessary to first process the raw material into a cup shape through prior processing, and then perform secondary stamping on the cup-shaped raw material to form a stepped structure on the outer wall. The processing steps are numerous, and multiple equipment is required, resulting in high costs and low efficiency. In the present application, by placing the raw material into the female die, the female die and the punch core can just cooperate to form a forming cavity corresponding to the product shape. At this time, extrusion can form the product into the corresponding shape, and the product can be formed in only one process without the need for multiple equipment for processing. While improving the product processing efficiency, the production cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a cross-sectional view of this embodiment, mainly used to show two states before and after stamping.

[0024] Figure 2 is a cross-sectional view of the female die in this embodiment.

[0025] Figure 3 is a front view of the punch core in this embodiment.

[0026] Description of the reference numerals:

[0027] 1. Upper die; 11. Driving member; 12. Punch core; 121. Matching inclined surface; 13. Punch sleeve;

[0028] 2. Lower die; 21. Female die; 211. Forming inclined surface; 212. Relief hole; 22. Piston; 23. Stripping rod;

[0029] 3. Forming cavity; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following further details the present application with reference to the accompanying drawings through specific embodiments.

[0031] A brake cover extrusion die, as Figure 1As shown in the figure, it includes an upper die 1 and a lower die 2. A driving member 11 for pushing the upper die 1 towards the lower die 2 is arranged on the upper die 1. A punch core 12 is fixedly arranged on the upper die 1, and the punch core 12 is arranged towards the lower die 2. A die cavity 21 is arranged in the lower die 2. A gap is left between the punch core 12 and the die cavity 21 to form a molding cavity 3, and the molding cavity 3 is arranged corresponding to the shape of the product. Specifically, the driving member 11 may include an oil cylinder and a cylinder. The oil cylinder applies greater force, and the cylinder has a lower cost. The upper die 1 and the lower die 2 are arranged corresponding to each other, and the lower die 2 is fixedly connected to the ground or a frame. By squeezing from the upper die 1 towards the lower die 2, the raw material can be extruded and formed in the molding cavity 3, such as Figure 1 The right side in the figure shows the state where the product is placed in the die cavity 21, and as shown in Figure 1 The left side in the figure shows the situation where the product is formed into a cup-shaped required product after extrusion.

[0032] As shown in Figure 1 and Figure 2 shown, a forming inclined surface 211 is opened on the die cavity 21. The forming inclined surface 211 is used to abut against the raw material, and the side of the forming inclined surface 211 close to the center of the lower die 2 is lower than the side far from the center of the lower die 2. Specifically, when the raw material is extruded by the punch core 12, it will extend into the molding cavity 3. Due to the setting of the forming inclined surface 211, the raw material will form the required stepped shape along the forming inclined surface 211.

[0033] As shown in Figure 1 and Figure 3 shown, a mating inclined surface 121 is arranged on the punch core 12 corresponding to the forming inclined surface 211. The mating inclined surface 121 is also used to abut against the raw material, and the inclination direction of the forming inclined surface 211 is the same as the inclination direction of the mating inclined surface 121. Specifically, the punch core 12 can form a molding cavity 3 with the required product shape with the mating inclined surface 121 on the forming inclined surface 211, and exactly complete the die-casting forming of the product.

[0034] As shown in Figure 1 shown, the mating inclined surface 121 is arranged parallel to the forming inclined surface 211. The bottom of the mating inclined surface 121 and the forming inclined surface 211 is located on the same horizontal plane, and the top of the mating inclined surface 121 is higher than the top of the forming inclined surface 211. Specifically, when the mating inclined surface 121 is arranged parallel to the forming inclined surface 211, the formation of the stepped shape is more natural, reducing the situation of product damage caused by different shapes of the inner and outer walls when the raw material is pressed. At the same time, since a larger area of inclined surface needs to be formed on the inner wall, the area of the mating inclined surface 121 is also larger than that of the forming inclined surface 211. When the height difference of the pressure on the inner and outer walls during extrusion is small, the raw material is less likely to be damaged due to excessive deformation during extrusion.

[0035] As shown in Figure 1As shown in the figure, a piston 22 is further provided on the lower die 2. The female die 21 is provided with a through relief hole 212 corresponding to the piston 22. The piston 22 is embedded in the relief hole 212 and is slidably connected to the relief hole 212. A knockout rod 23 for pushing the piston 22 is further provided in the lower die 2. During specific implementation, the knockout rod 23 can be connected to an oil cylinder or an air cylinder, and abuts against the raw material during processing to support the forming of the raw material. After the forming is completed, it can be pushed upward by the knockout rod 23, so as to complete the ejection of the product, and further improve the convenience of product processing.

[0036] As Figure 1 shown, a punch sleeve 13 is provided outside the punch core 12. The outside of the punch sleeve 13 is used to abut against the die wall of the female die 21, and the bottom of the punch sleeve 13 is used to abut against the raw material. The upper end of the punch core 12 is embedded in the punch sleeve 13, and the lower end of the punch core 12 extends out of the punch sleeve 13. During specific implementation, the punch core 12 is fixedly embedded in the punch sleeve 13. The punch sleeve 13 can limit the upward movement of the raw material when extruding the raw material, reduce the situation where the top of the raw material deforms upward differently, and further improve the quality of product processing.

[0037] Working principle: Put the raw material as Figure 1 shown on the right side into the relief hole 212 of the female die 21, and squeeze the upper die 1 downward in the way as Figure 1 shown on the left side, then the raw material can be formed into the product as Figure 1 shown on the left side. At this time, move the upper die 1 away, and the processed product can be ejected by the piston 22, thus completing the production.

[0038] The above is the preferred embodiment of this application. It does not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A brake cover extrusion die, comprising an upper die (1) and a lower die (2), wherein a driving member (11) for pushing the upper die (1) towards the lower die (2) is arranged on the upper die (1), and it is characterized in that: A punch core (12) is fixedly arranged on the upper die (1), the punch core (12) is arranged toward the lower die (2), a concave die (21) is arranged in the lower die (2), a gap is left between the punch core (12) and the concave die (21) to form a molding cavity (3), and the molding cavity (3) is arranged corresponding to the shape of the product.

2. The extrusion die for a brake cover according to claim 1, characterized in that: The concave die (21) is provided with a molding bevel (211), the molding bevel (211) is used to abut against the raw material, and the side of the molding bevel (211) close to the center of the lower die (2) is lower than the side away from the center of the lower die (2).

3. The extrusion die for a brake cover according to claim 2, characterized in that: A matching bevel (121) is provided on the punch core (12) corresponding to the forming bevel (211); the matching bevel (121) is also used to abut against the raw material; the inclination direction of the forming bevel (211) is the same as the inclination direction of the matching bevel (121).

4. A brake cover extrusion die according to claim 3, characterized in that: The matching inclined surface (121) and the forming inclined surface (211) are arranged in parallel.

5. A brake cover extrusion die according to claim 4, characterized in that: The bottom of the matching bevel (121) and the molding bevel (211) are located at the same horizontal plane, and the top of the matching bevel (121) is higher than the matching bevel. The top of the slope.

6. A brake cover extrusion die according to claim 1, characterized in that: The lower die (2) is also provided with a piston (22); the concave die (21) is provided with a clearance hole (212) corresponding to the piston (22); the piston (22) is embedded in the clearance hole (212) and slidably connected in the clearance hole (212); and a material ejection rod (23) for pushing the piston (22) is also provided in the lower die (2).

7. A brake cover extrusion die according to claim 3, characterized in that: A punch sleeve (13) is arranged on the outside of the punch core (12); the outside of the punch sleeve (13) is used to abut against the die wall of the die (21); and the bottom of the punch sleeve (13) is used to abut against the raw material.

8. A brake cover extrusion die according to claim 7, characterized in that: The upper end of the punch core (12) is embedded in the punch sleeve (13), and the lower end of the punch core (12) protrudes from the punch sleeve (13).

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