Special-shaped spoke part forging die

Abstract

The utility model discloses a special-shaped spoke part forging die which comprises an upper die base, a lower die base, an upper die and a lower die, the upper die is arranged on the upper die base, the lower die is arranged on the lower die base, and the upper die and the lower die are matched to achieve thermal forming of a special-shaped spoke part. An upper ejector rod assembly is installed in the middle of the upper die base in a penetrating mode and penetrates through the upper die downwards. A lower ejector rod assembly is installed in the middle of the lower die base in a penetrating mode and penetrates through the lower die upwards. The upper ejector rod assembly and the lower ejector rod assembly are coaxially arranged; a first mounting hole is formed in the upper die base in a penetrating manner, and a guide sleeve is arranged in the first mounting hole; a second mounting hole is formed in the lower die base in a penetrating mode, the first mounting hole and the second mounting hole are coaxially formed, and a guide column capable of being matched with the guide sleeve in an inserted mode is arranged in the second mounting hole. Through the matching of the guide sleeve and the guide post, the error of the forge piece is effectively controlled; through cooperation of the upper ejector rod assembly and the spring, local sudden impact of the upper ejector rod is avoided, the service life of the mold is prolonged, and operation safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of forging dies, and in particular relates to a forging die for special-shaped spoke parts. Background Art

[0002] With the development of science and technology, new energy vehicles have been widely used and promoted worldwide, and their development prospects and trends are very optimistic. To meet the stability and accuracy of their high-speed operation, they place extremely high demands on the dimensional accuracy of forgings. In the existing technology, forging parts with special-shaped spokes on the non-machined surfaces that require dynamic balancing has the following problems: the forging parts have special-shaped structures on both the upper and lower surfaces of the weight-reducing grooves, which require precise positioning during processing. However, the existing technology lacks dedicated forging dies suitable for such special-shaped spoke parts; the forging dies have high impact force and load during the forging process. After forging, due to the hard forging material, the forged parts are easily stuck between the forging dies, making demolding difficult and the forgings easily deformed; the existing dies lack forging accuracy and stability, making it difficult to meet subsequent processing requirements and urgently need improvement. Utility Model Content

[0003] In response to the technical problems existing at this stage, the purpose of this utility model is to provide a forging die for special-shaped spoke parts to solve the technical problem in the prior art of the lack of special processing dies that can meet the forging requirements of special-shaped spoke parts.

[0004] In order to achieve the above-mentioned purpose, the present invention discloses the following technical solutions:

[0005] A forging die for a special-shaped spoke part comprises an upper die base, a lower die base, an upper die and a lower die, wherein the upper die is arranged on the upper die base, the lower die is arranged on the lower die base, and the upper die cooperates with the lower die to realize hot forming of the special-shaped spoke part;

[0006] An upper ejector assembly is installed through the middle of the upper die base, and the upper ejector assembly passes through the upper die downward; a lower ejector assembly is installed through the middle of the lower die base, and the lower ejector assembly passes through the lower die upward; the upper ejector assembly and the lower ejector assembly are coaxially arranged;

[0007] A first mounting hole is formed through the upper die base, and a guide sleeve is provided in the first mounting hole; a second mounting hole is formed through the lower die base, and the first mounting hole and the second mounting hole are coaxially arranged, and a guide column capable of being plugged into and fitted with the guide sleeve is provided in the second mounting hole.

[0008] The utility model also has the following technical features:

[0009] Specifically, the upper mold base includes an upper mold base body, and a first inner cavity is provided in the middle of the upper mold base body, which is vertically passed through from top to bottom; the first inner cavity includes a first installation cavity, a first transition cavity, a second installation cavity and a third installation cavity that are connected in sequence from top to bottom; an upper mold base pad is embedded in the second installation cavity, the upper mold is provided in the third installation cavity, and an upper mold fixing wedge is also provided in the third installation cavity for radially limiting the upper mold.

[0010] Furthermore, a fourth mounting cavity which passes vertically through is provided in the middle of the upper mold seat block, and a fifth mounting cavity which is open at the top is provided in the middle of the upper mold. The fourth mounting cavity and the fifth mounting cavity are vertically connected to form a accommodating cavity, and a compression spring is provided in the accommodating cavity, and the compression spring is sleeved on the upper push rod assembly.

[0011] Furthermore, the lower die base includes a lower die base body, and a second inner cavity is provided in the middle of the lower die base body, which is vertically passed through from top to bottom; the second inner cavity includes a sixth mounting cavity, a seventh mounting cavity and an eighth mounting cavity which are sequentially connected from top to bottom; the lower die is provided in the sixth mounting cavity, and a lower die fixing wedge for radially limiting the lower die is also provided in the sixth mounting cavity; a lower die seat pad is embedded in the seventh mounting cavity, and a ninth mounting cavity with an open top is provided in the lower die seat pad.

[0012] Furthermore, the upper push rod assembly includes a first upper die base transition push rod, a first limit block, a second upper die base transition push rod, a second limit block and an upper die push rod coaxially connected in sequence from top to bottom, the first limit block is arranged in the first mounting cavity, and the second limit block is arranged in the fourth mounting cavity; the two ends of the compression spring are respectively connected to the second limit block and the upper die.

[0013] Furthermore, the lower ejector rod assembly includes a lower mold ejector rod, a third limiting block and a lower mold transition ejector rod coaxially connected in sequence from top to bottom, and the third limiting block is arranged in the ninth installation cavity.

[0014] Furthermore, the number of the first mounting holes is three, and the three first mounting holes are evenly spaced along the circumference of the upper die base;

[0015] The number of the second mounting holes is three, and the three second mounting holes are arranged at equal intervals along the circumference of the lower mold base.

[0016] Furthermore, the guide sleeve includes a first connecting section and a second connecting section that are coaxially connected, a first limiting step is formed on the outer wall at the connection between the first connecting section and the second connecting section, and the outer contour of the first connecting section matches the inner contour of the first mounting hole;

[0017] A second limiting step is provided in the second mounting hole.

[0018] Furthermore, a stopper capable of axially limiting the first limiting block is provided on the top of the upper die base, and the stopper is sleeved on the transition push rod of the first upper die base.

[0019] Furthermore, a third limiting step capable of axially limiting the second limiting block is provided in the fourth installation cavity;

[0020] A fourth limiting step capable of axially limiting the third limiting block is provided in the ninth installation cavity.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The utility model realizes external guidance through the cooperation of the guide sleeve and the guide column, effectively controlling the error of the forging; through the cooperation of the upper ejector rod assembly and the spring, when the upper ejector mechanism of the forging equipment ejects downward, the power of the forging equipment is used to compress the compression spring, and when the upper ejector mechanism finishes working, the elastic force of the compression spring is used to quickly and accurately reset the upper ejector rod assembly, effectively avoiding local sudden impact of the upper ejector rod, extending the service life of the mold, improving operational safety, eliminating the need for consuming additional energy, making it convenient to remove parts, and improving work efficiency; by arranging the upper mold fixed bevel wedge and the lower mold fixed bevel wedge, accurate positioning can be ensured and the mold can be prevented from rotating; the utility model has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure, but do not constitute a limitation of the present disclosure.

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 Schematic diagram of the upper die base structure;

[0026] Figure 3 Schematic diagram of the lower die base structure;

[0027] Figure 4 It is a schematic diagram of the structure of the upper die seat cushion block;

[0028] Figure 5 It is a schematic diagram of the structure of the lower die seat cushion block.

[0029] Numbers in the figure:

[0030] 1-upper die base, 2-lower die base, 3-upper die, 4-lower die, 5-upper ejector rod assembly, 6-lower ejector rod assembly, 7-guide sleeve, 8-guide column, 9-compression spring, 10-stopper; 11-upper die base body, 12-first inner cavity, 13-upper die base cushion block, 14-upper die fixed wedge; 21-lower die base body, 22-second inner cavity, 23-lower die fixed wedge, 24-lower die base cushion block; 31-fifth mounting cavity; 51-first upper die base transition ejector rod, 52-first limit block, 53-second upper die base transition ejector rod, 54-second limit block, 55-upper die ejector rod; 61-lower die ejector rod, 62-third limit block, 63-lower die transition ejector rod; 71-first connecting section, 72-second connecting section, 73-first limit step;

[0031] 121 - first installation cavity, 122 - first transition cavity, 123 - second installation cavity, 124 - third installation cavity; 131 - fourth installation cavity; 221 - sixth installation cavity, 22 - seventh installation cavity, 223 - eighth installation cavity; 241 - ninth installation cavity; 1311 - third limiting step; 2411 - fourth limiting step.

[0032] The following specific implementation manner describes this solution in detail. DETAILED DESCRIPTION

[0033] Specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent modifications made on the basis of the technical solution of this application fall within the protection scope of the present invention.

[0034] Terms such as "upper", "lower", "front", "back", "top" and "bottom" used in the present invention to indicate directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction. "Inside" and "outside" refer to the inside and outside of the contours of the corresponding components, and the above terms cannot be understood as limitations on the present invention.

[0035] Furthermore, the terms "first," "second," and other ordinal numbers are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referenced. Thus, a feature designated "first" or "second" may explicitly or implicitly include one or more of the features.

[0036] In this utility model, unless otherwise specified, terms such as "installed," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0037] Unless otherwise specified, the components in this utility model can be purchased from the market.

[0038] Example 1

[0039] Following the above technical solution, Figures 1 to 5 As shown, this embodiment discloses a forging die for special-shaped spoke parts, including an upper die base 1, a lower die base 2, an upper die 3 and a lower die 4, wherein the upper die 3 is fixed to the upper die base 1 by means of a fixed oblique wedge, and the lower die 4 is fixed to the lower die base 2 by means of a fixed oblique wedge, the upper die 3 and the lower die 4 correspond to each other up and down, and the upper die 3 and the lower die 4 cooperate to realize the hot forming of special-shaped spoke parts; an upper ejector rod assembly 5 is installed through the middle of the upper die base 1, the upper ejector rod assembly 5 passes through the upper die 3 downward, and the upper end of the upper ejector rod assembly 5 passes through the upper die base 1; a lower ejector rod assembly 6 is installed through the middle of the lower die base 2, the lower ejector rod assembly 6 passes through the lower die 4 upward, and the lower end of the lower ejector rod assembly 6 passes through the lower die base 2; the upper ejector rod assembly 5 and the lower ejector rod assembly 6 are coaxially arranged; the upper ejector rod assembly 5 is used for the upper ejection of the forging to complete the effective separation of the forging and the upper die 3, and the lower ejector rod assembly 6 is used for the lower ejection of the forging to complete the effective separation of the forging and the lower die 4.

[0040] A first mounting hole is formed through the upper die base 1, into which a guide sleeve 7 is fixedly mounted. A second mounting hole is formed through the lower die base 2, the first and second mounting holes being coaxially arranged. A guide post 8 is disposed in the second mounting hole, which is adapted to engage with the guide sleeve 7. The guide sleeve 7 and the guide post 8 cooperate to provide guidance, facilitating installation.

[0041] As a preferred solution of this embodiment, the upper mold base 1 includes an upper mold base body 11, and a first inner cavity 12 is provided in the middle of the upper mold base body 11, which is vertically connected from top to bottom; the first inner cavity 12 includes a first installation cavity 121, a first transition cavity 122, a second installation cavity 123 and a third installation cavity 124 that are connected in sequence from top to bottom; an upper mold base pad 13 is embedded in the second installation cavity 123, and the upper mold base pad 13 is fixed to the upper mold base body 11 by means of bolts, and an upper mold 3 is provided in the third installation cavity 124, and an upper mold fixing wedge 14 for radially limiting the upper mold 3 is also provided in the third installation cavity 124.

[0042] As a preferred embodiment of this embodiment, a fourth mounting cavity 131 extending vertically through the center of the upper die seat pad 13 is defined, and a fifth mounting cavity 31 with an open top is defined in the center of the upper die 3. The fourth mounting cavity 131 and the fifth mounting cavity 31 are vertically connected to form a receiving cavity. A compression spring 9 is disposed within the receiving cavity, and the compression spring 9 is sleeved on the upper ejector assembly 5. When the upper ejector mechanism of the forging equipment ejects downward, the compression spring 9 is compressed by the power of the forging equipment with the aid of a second stop block 54. When the upper ejector mechanism completes operation, the elastic force of the compression spring 9 resets the upper ejector assembly 5. Without the compression spring 9, the upper ejector 51 freely sinks due to its own weight and protrudes out of the die cavity. During the forging process, the upper ejector assembly 5 first contacts the blank. If subjected to a sudden impact, the upper ejector 51 can easily bend or even break. The provision of the compression spring 9 effectively prevents sudden local impacts on the upper ejector 51, thereby extending the die life and improving operational safety.

[0043] As a preferred embodiment of this embodiment, the lower die base 2 includes a lower die base body 21, with a second inner cavity 22 extending vertically vertically therethrough in the middle. The second inner cavity 22 includes a sixth mounting cavity 221, a seventh mounting cavity 222, and an eighth mounting cavity 223, which are sequentially connected from top to bottom. The lower die 4 is disposed within the sixth mounting cavity 221, and a lower die fixing wedge 23 for radially limiting the lower die 4 is also disposed within the sixth mounting cavity 221. The lower die base cushion block 24 is embedded within the seventh mounting cavity, and a ninth mounting cavity 241, with an open top, is disposed within the lower die base cushion block 24. The lower die base cushion block 24 also has multiple vertically extending lifting holes for assembly and disassembly.

[0044] As a preferred solution of this embodiment, the upper ejector assembly 5 includes a first upper die base transition ejector 51, a first stopper 52, a second upper die base transition ejector 53, a second stopper 54, and an upper die ejector 55, which are coaxially connected in sequence from top to bottom. The first stopper 52 is disposed within the first mounting cavity 121, and the second stopper 54 is disposed within the fourth mounting cavity 131. The two ends of the compression spring 9 are respectively connected to the second stopper 54 and the upper die 3. When the upper ejector assembly 5 moves downward, the downward movement of the second stopper 54 compresses the compression spring 9.

[0045] As a preferred embodiment of this embodiment, the lower ejector assembly 6 includes a lower die ejector 61, a third stopper 62, and a lower die transition ejector 63, coaxially connected from top to bottom. The third stopper 62 is disposed within the ninth mounting cavity 241. The third stopper 62 axially limits the lower die ejector 61. When the lower ejection mechanism completes operation, the lower ejector assembly 6 returns to its original position under its own weight.

[0046] As a preferred solution of this embodiment, the number of the first mounting holes is three, and the three first mounting holes are evenly spaced along the circumference of the upper mold base 1;

[0047] The number of the second mounting holes is three, and the three second mounting holes are arranged at equal intervals along the circumference of the lower die base 2 .

[0048] As a preferred solution of this embodiment, the guide sleeve 7 includes a first connecting section 71 and a second connecting section 72 that are coaxially connected. A first limiting step 73 is formed on the outer wall at the connection between the first connecting section 71 and the second connecting section 72. The outer contour of the first connecting section 71 matches the inner contour of the first mounting hole; a second limiting step is provided in the second mounting hole, and the second limiting step is used to limit the guide column 8.

[0049] As a preferred solution of this embodiment, a stop block 10 is provided on the top of the upper mold base 1, which can axially limit the first limit block 52, and the stop block 10 is sleeved on the first upper mold base transition push rod 51. When the upper push rod assembly 5 is reset under the elastic force of the compression spring 9, the stop block 10 can limit the upward movement of the upper push rod assembly 5 by limiting the position of the first limit block 52.

[0050] As a preferred solution of this embodiment, a third limiting step 1311 capable of axially limiting the second limiting block 54 is provided in the fourth installation cavity 131;

[0051] A fourth limiting step 2411 is provided in the ninth installation cavity 241 and is capable of axially limiting the third limiting block 62 .

[0052] When the utility model is in use:

[0053] The blank is heated to the set temperature, upset into a round cake shape, and placed in the cavity of the lower die 4. The upper die 3 moves downward as a whole. The guide pillar 8 cooperates with the guide sleeve 7 first to complete the external primary guide. The upper die 3 continues to move downward as a whole. The outer ring lock of the lower die 4 and the upper die 3 completes the internal secondary guide. With the help of the two guides, the forging error can be effectively controlled to ensure the dynamic balance requirements of the forging. The upper die 3 continues to move downward as a whole. The blank is forged and formed in the cavity of the upper die 3 and the lower die 4. After the forging is completed, the upper die 3 moves upward. The upper ejector mechanism of the forging equipment ejects downward, and uses the power of the forging equipment to compress the compression spring 9 with the help of the second limit block 54, and ejects downward to complete the effective separation of the forging and the upper die 3 cavity. When the upper ejector mechanism finishes working, the elastic force of the compression spring 9 is used to reset the upper ejector rod assembly 5. At the same time, the lower ejector mechanism of the forging equipment ejects upward, and uses the power of the forging equipment to eject the lower fixed rod 61 upward, completing the effective separation of the forging and the lower die 4 cavity. When the lower ejector mechanism finishes working, the lower ejector rod assembly 6 is reset by its own weight.

[0054] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0055] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A forging die for a special-shaped spoke part, comprising an upper die base (1), a lower die base (2), an upper die (3) and a lower die (4), wherein the upper die (3) is arranged on the upper die base (1), and the lower die (4) is arranged on the lower die base (2), and the upper die (3) and the lower die (4) cooperate to realize the hot forming of the special-shaped spoke part, characterized in that: An upper ejector assembly (5) is installed through the middle of the upper die base (1), and the upper ejector assembly (5) passes through the upper die (3) downwards; a lower ejector assembly (6) is installed through the middle of the lower die base (2), and the lower ejector assembly (6) passes through the lower die (4) upwards; the upper ejector assembly (5) and the lower ejector assembly (6) are coaxially arranged; A first mounting hole is provided through the upper die base (1), and a guide sleeve (7) is provided in the first mounting hole; a second mounting hole is provided through the lower die base (2), the first mounting hole and the second mounting hole are coaxially arranged, and a guide column (8) capable of plugging and cooperating with the guide sleeve (7) is provided in the second mounting hole.

2. The forging die for special-shaped spoke parts according to claim 1, characterized in that: The upper die seat (1) includes an upper die seat body (11), and a first inner cavity (12) is provided in the middle of the upper die seat body (11) and is vertically connected from top to bottom; the first inner cavity (12) includes a first installation cavity (121), a first transition cavity (122), a second installation cavity (123) and a third installation cavity (124) which are connected in sequence from top to bottom; an upper die seat pad (13) is embedded in the second installation cavity (123), the upper die (3) is provided in the third installation cavity (124), and an upper die fixing wedge (14) for radially limiting the upper die (3) is also provided in the third installation cavity (124).

3. The forging die for special-shaped spoke parts according to claim 2, characterized in that: A fourth mounting cavity (131) extending vertically through the middle of the upper die seat pad (13) is provided, and a fifth mounting cavity (31) with an open top is provided in the middle of the upper die (3). The fourth mounting cavity (131) and the fifth mounting cavity (31) are vertically connected to form a receiving cavity. A compression spring (9) is provided in the receiving cavity, and the compression spring (9) is sleeved on the upper ejector rod assembly (5).

4. The forging die for special-shaped spoke parts according to claim 3, characterized in that: The lower die base (2) includes a lower die base body (21), and a second inner cavity (22) is provided in the middle of the lower die base body (21) and is vertically connected from top to bottom; the second inner cavity (22) includes a sixth installation cavity (221), a seventh installation cavity (222) and an eighth installation cavity (223) which are connected in sequence from top to bottom; the lower die (4) is provided in the sixth installation cavity (221), and a lower die fixing wedge (23) for radially limiting the lower die (4) is also provided in the sixth installation cavity (221); a lower die base cushion block (24) is embedded in the seventh installation cavity, and a ninth installation cavity (241) with an open top is provided in the lower die base cushion block (24).

5. The forging die for special-shaped spoke parts according to claim 3, characterized in that: The upper ejector rod assembly (5) comprises a first upper die base transition ejector rod (51), a first limit block (52), a second upper die base transition ejector rod (53), a second limit block (54) and an upper die ejector rod (55) which are coaxially connected in sequence from top to bottom, wherein the first limit block (52) is arranged in a first mounting cavity (121), and the second limit block (54) is arranged in a fourth mounting cavity (131); and the two ends of the compression spring (9) are respectively connected to the second limit block (54) and the upper die (3).

6. The forging die for special-shaped spoke parts according to claim 4, characterized in that: The lower ejector assembly (6) comprises a lower die ejector (61), a third limiting block (62) and a lower die transition ejector (63) coaxially connected in sequence from top to bottom, wherein the third limiting block (62) is arranged in the ninth installation cavity (241).

7. The forging die for special-shaped spoke parts according to claim 1, characterized in that: The number of the first mounting holes is three, and the three first mounting holes are arranged at equal intervals along the circumference of the upper die base (1); The number of the second mounting holes is three, and the three second mounting holes are arranged at equal intervals along the circumference of the lower die base (2).

8. The forging die for special-shaped spoke parts according to claim 1, wherein: The guide sleeve (7) comprises a first connecting section (71) and a second connecting section (72) which are coaxially connected and arranged, a first limiting step (73) is formed on the outer wall at the connection point between the first connecting section (71) and the second connecting section (72), and the outer contour of the first connecting section (71) matches the inner contour of the first mounting hole; A second limiting step is provided in the second mounting hole.

9. The forging die for special-shaped spoke parts according to claim 1, wherein: A stopper (10) capable of axially limiting the first limiting block (52) is provided on the top of the upper die seat (1), and the stopper (10) is sleeved on the first upper die seat transition push rod (51).

10. The forging die for special-shaped spoke parts according to claim 4, characterized in that: A third limiting step (1311) capable of axially limiting the second limiting block (54) is provided in the fourth installation cavity (131); A fourth limiting step (2411) capable of axially limiting the third limiting block (62) is provided in the ninth installation cavity (241).

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