A wheel hub stamping die

Abstract

A hub stamping die relates to the field of mechanical manufacturing, and particularly relates to a hub stamping die. The hub stamping die comprises an upper die and a lower die. The upper die comprises an upper cover plate, an upper die base, an upper gasket, an upper clamp plate, a stop plate and an upper stripper plate. The lower die comprises a lower die plate, a first lower gasket, a second lower gasket and a lower die base. The upper gasket, the upper clamp plate, the stop plate and the upper stripper plate are elastically connected. The lower die plate, the first lower gasket and the second lower gasket are elastically connected. The upper stripper plate and the lower die plate are used for feeding. The ingredients are fed from one end of the die, and sequentially pass through a pressing lower die, a first stamping lower die, a second stamping lower die, a forming lower die, a punching lower die, a trimming lower die and a bending lower die arranged along the conveying direction of the ingredients. The upper die cooperates with the lower die to generate a hub accessory. The application has the effects of integrated stamping of the hub, no need of multiple dies for processing the hub, guarantee of stamping precision and saving of labor cost.

Description

Technical Field

[0001] A wheel hub stamping die, relating to the field of mechanical manufacturing, and particularly to a wheel hub stamping die. Background Technology

[0002] In related technologies, the stamping of wheel hubs used to mate with caster brackets requires multiple steps and is not a one-time forming process. If the wheel hub is processed multiple times on different molds, performing stamping, trimming, bending, and other processes separately, the stamped wheel hub faces difficulties in precision control. Strict dimensional tolerances and high dimensional accuracy are required; any slight deviation can lead to assembly problems or affect performance. Springback effects must also be avoided, and adjusting the wheel hub position in different molds can easily cause dimensional errors, increasing labor costs. Therefore, this process has significant limitations and drawbacks. Utility Model Content

[0003] In order to overcome the shortcomings of related technologies, this application provides a wheel hub stamping die.

[0004] It includes an upper mold and a lower mold. The upper mold includes an upper cover plate, an upper mold base, an upper pad plate, an upper clamping plate, a stop plate, and an upper stripping plate. The lower mold includes a lower template plate, a first lower pad plate, a second lower pad plate, and a lower mold base. The upper pad plate, the upper clamping plate, the stop plate, and the upper stripping plate are elastically connected. The lower template plate is elastically connected to the first lower pad plate and the second lower pad plate.

[0005] The upper ejector plate and the lower template are used for feeding. The material is fed from one end of the mold and passes through the lower mold in sequence along the feeding direction, including the pressing lower mold, the first stamping lower mold, the second stamping lower mold, the forming lower mold, the punching lower mold, the trimming lower mold, and the bending lower mold. The upper mold is equipped with the pressing upper mold, the first stamping upper mold, the second stamping upper mold, the forming upper mold, the punching upper mold, the trimming upper mold, and the bending upper mold, which are respectively matched with the lower mold to produce wheel hub parts.

[0006] Furthermore, the wheel hub stamping die is also provided with a base.

[0007] Furthermore, multiple guide pillars are provided between the upper mold base and the lower mold base.

[0008] Furthermore, the wheel hub stamping die is also equipped with a conveying device, which is used to push the material between the upper stripper plate and the lower template for conveying movement.

[0009] Furthermore, the lower die is equipped with a circular pressing groove. The upper die presses down into the circular pressing groove of the lower die, so that the material is stamped out into a circular piece in one go.

[0010] Furthermore, the first stamping die is equipped with a first stamping circular groove, and six support pillars are provided in the first stamping circular groove. The first stamping upper die presses down into the first stamping circular groove of the first stamping die, so that the material is stamped out with a first protrusion in one go. The second stamping die is equipped with a second stamping circular groove, and four support pillars are provided in the second stamping circular groove. The second stamping upper die presses down into the second stamping circular groove of the second stamping die, so that the material is stamped out with a second protrusion in one go.

[0011] Furthermore, the lower forming die is equipped with a hexagonal stamping groove, and the upper forming die presses down into the hexagonal stamping groove of the lower forming die, so that the material is stamped out into the hexagonal groove in one go.

[0012] Furthermore, the lower punching die is equipped with a punching groove, and the upper punching die is pressed downward into the punching groove of the lower punching die, so that a round hole is punched out at the top center of the second protrusion of the material in one go.

[0013] Furthermore, the lower trimming die is equipped with a trimming groove, and the upper trimming die presses downward into the trimming groove of the lower trimming die, so that the material is trimmed in one go to cut out the edge of the wheel hub component's overall structure.

[0014] Furthermore, the lower bending die is equipped with a circular bending groove and a circular bending protrusion. The upper bending die presses down into the circular bending groove and the circular bending protrusion of the lower bending die, so that the first bending edge is punched out in one go and the second bending edge is punched out in the center hole at the top of the second protrusion.

[0015] This application includes at least one of the following beneficial technical effects:

[0016] 1. Multiple processing steps for the wheel hub can be performed in the same mold, eliminating the need to transfer the materials for wheel hub production to different molds and avoiding errors caused by moving the materials.

[0017] 2. Each process produces one wheel hub component. Two identical wheel hub components are combined to form a wheel hub product, saving materials and avoiding waste.

[0018] 3. One sheet of iron material can produce multiple wheel hubs. The iron material is fed from one end of the mold and processed sequentially from left to right, saving processes, saving time, and improving the efficiency of wheel hub production. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0020] Figure 2 This is a schematic diagram of the lower mold structure of each component of the mold in the embodiments of this application.

[0021] Figure 3This is a schematic diagram of the upper mold structure of each component of the mold in the embodiment of this application.

[0022] Figure 4 This is a schematic diagram of the overall structure of the wheel hub according to an embodiment of this application.

[0023] Figure 5 This is a front view of the first protruding structure in an embodiment of this application.

[0024] Figure 6 This is a front view of the second protruding structure in an embodiment of this application.

[0025] Figure 7 This is a front sectional view of the second groove structure in the embodiment of this application.

[0026] Figure 8 This is a front sectional view of the circular hole structure in an embodiment of this application.

[0027] Figure 9 This is a top view of the edge structure after the ingredients are cut in the embodiment of this application.

[0028] Figure 10 This is a front sectional view of the wheel hub according to an embodiment of this application.

[0029] Figure 11 This application provides a schematic diagram of the overall structure of the wheel hub from another perspective.

[0030] Explanation of reference numerals in the attached drawings: 1. Upper cover plate; 2. Upper mold base; 3. Upper pad plate; 4. Upper clamping plate; 5. Stop plate; 6. Upper ejector plate; 7. Lower mold plate; 8. First lower pad plate; 9. Second lower pad plate; 10. Lower mold base; 11. Base; 16. First protrusion; 17. Second protrusion; 18. First bent edge; 19. Second bent edge; 20. Third bent edge; 21. First bent portion; 22. First groove; 23. Circular through hole; 24. Second groove; 25. Guide. 26. Column; 27. Through hole bottom layer; 28. Through hole top layer; 29. ​​Second bending part; 30. Gear; 31. Round hole; 32. Pressing die; 33. First stamping die; 34. Second stamping die; 35. Forming die; 36. Punching die; 37. Trimming die; 48. Bending die; 49. Pressing die; 40. First stamping die; 41. Second stamping die; 42. Forming die; 43. Punching die; 44. Trimming die; 45. Bending die. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-11 This application will be described in further detail.

[0032] Example 1:

[0033] Reference Figure 1 , Figure 2 and Figure 3This application provides a wheel hub 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. The wheel hub stamping die includes an upper die and a lower die. The upper die includes an upper cover plate 1, an upper die base 2, an upper pad plate 3, an upper clamping plate 4, a stop plate 5, and an upper ejector plate 6. The lower die includes a lower die template 7, a first lower pad plate 8, a second lower pad plate 9, and a lower die base 10. The upper cover plate 1, upper die base 2, upper pad plate 3, upper clamping plate 4, stop plate 5, upper ejector plate 6, lower die template 7, first lower pad plate 8, second lower pad plate 9, and lower die base 10 are arranged sequentially from top to bottom. The upper pad plate 3, upper clamping plate 4, stop plate 5, and upper ejector plate 6 are elastically connected, that is, there is an elastic gap between the upper clamping plate 4 and the stop plate 5. The lower die template 7 is elastically connected to the first lower pad plate 8 and the second lower pad plate 9, that is, there is an elastic gap between the lower die template 7 and the first lower pad plate 8. The upper ejector plate 6 and the lower template 7 are used for material feeding. A base 11 is provided under the lower mold base 10. In this embodiment, the base 11 includes two thick columns on both sides and eight thin columns in the middle. The ten columns are fixedly connected to the lower mold base 10 to support it. Multiple guide columns 25 are provided between the upper mold base 2 and the lower mold base 10. Each guide column 25 includes a top sleeve and a column body that mates with the sleeve. In this embodiment, a total of six guide columns 25 are provided.

[0034] 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.

[0035] During use, the rigid material used for stamping in the wheel hub stamping die described in this application is gradually passed through the stamping gap between the upper ejector plate 6 and the lower template 7 under the drive of the matching conveyor device. The rigid material is set as an iron plate with a thickness of 2 mm. When it enters the die, it is an iron plate. The iron plate is gradually fed into the stamping die without being opened.

[0036] Reference Figure 4 and Figure 11 The iron plate is stamped into a wheel hub using the wheel hub stamping die. The wheel hub has a first bent portion 21 with a first groove 22. A circular through hole 23 facing upwards is located at the center of the first groove 22. The circular through hole 23 has two layers: a bottom layer 26 and a top layer 27. A hexagonal second groove 24 surrounds the circular through hole 23. A second bent portion 28 surrounds the top of the first bent portion 21, and multiple gears 29 are mounted on the second bent portion. Two wheel hub components are joined together by the gears 29 to form a single wheel hub product.

[0037] The material is fed into the mold from one end. Along the material conveying direction, the lower mold is sequentially arranged with a pressing lower mold 41, a first stamping lower mold 42, a second stamping lower mold 43, a forming lower mold 44, a punching lower mold 45, a trimming lower mold 46, and a bending lower mold 47. The upper mold is arranged with pressing upper molds 31, 32, 33, 34, 35, 36, and 37 that respectively cooperate with the pressing lower mold 41, 42, 43, 44, 45, 46, and 47. During the stamping process, the material passes through the corresponding upper and lower molds in sequence to form a complete wheel hub product. In this embodiment, a wheel hub accessory is obtained after one sequential stamping by multiple upper and lower molds. The following description of each lower die structure is used to introduce the technical solution of this application. Since the upper and lower dies are completed in cooperation during the stamping process, the corresponding upper die structure will not be described in detail in this application.

[0038] Reference Figure 2 The lower die 41 is configured with a circular pressing groove. The upper die 31 presses down into the circular pressing groove of the lower die 41, so that the material is stamped out into a circular piece in one go. The circular piece corresponds to the overall structure of the wheel hub accessory when it is not formed.

[0039] Reference Figure 2 and Figure 5 The first stamping die 42 is equipped with a first stamping circular groove, and six support columns are provided in the first stamping circular groove. The first stamping upper die 32 presses down into the first stamping circular groove of the first stamping die 42, so that the material is stamped out in one go to form the first protrusion 16.

[0040] Reference Figure 2 and Figure 6 The second stamping die 43 is equipped with a second stamping circular groove, and four support columns are provided in the second stamping circular groove. The second stamping upper die 33 is pressed down into the second stamping circular groove of the second stamping die 43, so that the material is stamped out in one go to form the second protrusion 17. The second protrusion 17 corresponds to the bottom layer 26 side wall of the circular through hole 23 of the wheel hub.

[0041] Reference Figure 2 and Figure 7 The lower forming die 44 is equipped with a hexagonal stamping groove. The upper forming die 34 is pressed down into the hexagonal stamping groove of the lower forming die 44, so that the material is stamped out in a hexagonal groove at one time, which corresponds to the second hexagonal groove 24 of the wheel hub. The overall structure of the iron plate material used for the wheel hub is stamped into the first groove 22. The edge of the first groove 22 is provided with a first bent edge 18.

[0042] Reference Figure 2and Figure 8 The lower punching die 45 is equipped with a punching groove. The upper punching die 35 is pressed downward into the punching groove of the lower punching die 45, so that a round hole 30 is punched out at the top center of the second protrusion 17 in one go.

[0043] Reference Figure 2 and Figure 9 The lower trimming die 46 is equipped with a trimming groove. The upper trimming die 36 is pressed downward into the trimming groove of the lower trimming die 46, so that the material is cut out in one go to form the edge of the wheel hub component, that is, the circular edge of the wheel hub and the multiple gears 29 set on the edge.

[0044] Reference Figure 2 and Figure 10 The lower bending die 47 is equipped with a circular bending groove and a circular bending protrusion. The upper bending die 37 is pressed downward into the circular bending groove and the circular bending protrusion of the lower bending die 47, so that the first bending edge 18 is stamped out into the second bending edge 19 in one go. The second bending edge 19 corresponds to the second bending part 28 of the wheel hub. The third bending edge 20 is stamped out into the central circular hole 30 at the top of the second protrusion 17, and the third bending edge 20 corresponds to the top layer 27 of the through hole of the wheel hub.

[0045] The working principle of this application embodiment is as follows:

[0046] In the initial state, the elastic connection between the upper pad 3, the upper clamping plate 4, the stop plate 5, and the upper release plate 6 is in a natural state, and the elastic connection between the lower template 7 and the first lower pad 8 and the second lower pad 9 is in a natural state.

[0047] When the power unit drives the upper mold base 2 to press downwards, the upper ejector plate 6 presses down on the lower mold plate 7. The upper ejector plate 6 and the lower mold plate 7 contact and press the feeding iron plate. When the power unit drives the upper mold base 2 to continue to move downwards, the elastic gap between the upper pad plate 3, the upper clamping plate 4, the stop plate 5, and the upper ejector plate 6 is compressed. The elastic gap between the lower mold plate 7 and the first lower pad plate 8 and the second lower pad plate 9 is also compressed, so that the upper and lower molds of each component of the mold device cooperate one by one to press the feeding iron plate into shape.

[0048] After stamping, the power unit drives the upper die holder 2 to move upward to the initial state. At this time, the material preparation plate is located on the upper surface of the lower die plate 7, and the material preparation plate continues to move horizontally under the drive of the conveying device. The wheel hub stamping die repeats the stamping process.

[0049] The sheet metal is processed through seven stamping processes in sequence: pressing die 41, first stamping die 42, second stamping die 43, forming die 44, punching die 45, trimming die 46, and bending die 47.

[0050] The finished wheel hub has a smooth, clean surface, free of cracks, scratches, and defects. Driven by a conveyor, the finished wheel hub components are output from the wheel hub outlet.

[0051] Multiple processing steps for the wheel hub are performed within the same mold, eliminating the need to transfer materials to different molds and avoiding errors caused by material movement. Each complete process produces one wheel hub component, and two identical components are combined to form a finished wheel hub, saving materials and preventing waste. A single sheet of sheet metal can produce multiple wheel hubs. The sheet metal is fed from one end of the mold and processed sequentially from left to right, saving steps, time, and improving wheel hub production efficiency.

[0052] 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 wheel hub stamping die, comprising an upper die and a lower die, the upper die comprising an upper cover plate (1), an upper die base (2), an upper pad plate (3), an upper clamping plate (4), a stop plate (5), and an upper stripper plate (6), the lower die comprising a lower template plate (7), a first lower pad plate (8), a second lower pad plate (9), and a lower die base (10), characterized in that, The upper pad (3), upper clamping plate (4), stop plate (5), and upper release plate (6) are elastically connected, and the lower template (7) is elastically connected to the first lower pad (8) and the second lower pad (9). The upper ejector plate (6) and the lower template (7) are used for feeding. The material is fed from one end of the mold and passes through the pressing lower mold (41), the first stamping lower mold (42), the second stamping lower mold (43), the forming lower mold (44), the punching lower mold (45), the trimming lower mold (46), and the bending lower mold (47) arranged in sequence along the feeding direction on the lower mold. The upper mold is arranged with pressing upper mold (31), first stamping upper mold (32), second stamping upper mold (33), forming upper mold (34), punching upper mold (35), trimming upper mold (36), and bending upper mold (37) that correspond to the lower mold to generate wheel hub parts.

2. The wheel hub stamping die according to claim 1, characterized in that, The wheel hub stamping die is also provided with a base (11).

3. The wheel hub stamping die according to claim 2, characterized in that, Multiple guide pillars (25) are provided between the upper mold base (2) and the lower mold base (10).

4. The wheel hub stamping die according to claim 3, characterized in that, The wheel hub stamping die is also equipped with a conveying device, which is used to push the material between the upper stripper plate (6) and the lower template (7).

5. The wheel hub stamping die according to claim 4, characterized in that, The lower die is equipped with a circular pressing groove. The upper die presses down into the circular pressing groove of the lower die, so that the material is stamped out into a circular piece in one go.

6. The wheel hub stamping die according to claim 5, characterized in that, The first stamping die is equipped with a first stamping circular groove, and six support columns are provided in the first stamping circular groove. The first stamping upper die presses down into the first stamping circular groove of the first stamping die, so that the material is stamped out into the first protrusion (16) in one go. The second stamping die is equipped with a second stamping circular groove, and four support columns are provided in the second stamping circular groove. The second stamping upper die presses down into the second stamping circular groove of the second stamping die, so that the material is stamped out into the second protrusion (17) in one go.

7. The wheel hub stamping die according to claim 6, characterized in that, The lower forming die is equipped with a hexagonal stamping groove. The upper forming die presses down into the hexagonal stamping groove of the lower forming die, so that the material is stamped out into the hexagonal groove in one go.

8. The wheel hub stamping die according to claim 7, characterized in that, The lower punching die is equipped with a punching groove. The upper punching die is pressed down into the punching groove of the lower punching die, so that the top center of the second protrusion (17) of the material feeding is punched out with a round hole (30) in one go.

9. The wheel hub stamping die according to claim 8, characterized in that, The lower die for trimming is equipped with a trimming groove. The upper die for trimming presses down into the trimming groove of the lower die for trimming, so that the material is trimmed in one go to cut out the edge of the wheel hub component's overall structure.

10. The wheel hub stamping die according to claim 9, characterized in that, The bending lower die is equipped with a circular bending groove and a circular bending protrusion. The bending upper die presses down into the circular bending groove and the circular bending protrusion of the bending lower die, so that the first bending edge (18) is punched out in one go to form the second bending edge (19); and the third bending edge (20) is punched out through the central hole at the top of the second protrusion (17).

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