CN219837122U - Cold heading die for manufacturing double-flange special-shaped part - Google Patents
Cold heading die for manufacturing double-flange special-shaped part Download PDFInfo
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- CN219837122U CN219837122U CN202223222622.8U CN202223222622U CN219837122U CN 219837122 U CN219837122 U CN 219837122U CN 202223222622 U CN202223222622 U CN 202223222622U CN 219837122 U CN219837122 U CN 219837122U
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims description 22
- 238000003754 machining Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a cold heading die for manufacturing a double-flange special-shaped part, which comprises a female die assembly and a male die assembly, wherein the female die assembly comprises a female die outer shell, a supporting piece, a forming plate, a forming jacking pipe, a conical nest die and an opening and closing die assembly, the supporting piece, the forming plate and the conical nest die are sequentially arranged in the female die outer shell along the length direction of the female die outer shell, one end of the supporting piece is abutted with one side of the forming plate, the other side of the forming plate is abutted with one end of the conical nest die, the forming plate and the conical nest die are in sliding connection with the female die outer shell, and a through hole and a flange forming cavity are formed in the forming plate. The technical effects achieved are as follows: by utilizing the cold heading die, the double-flange special-shaped part can be produced rapidly and efficiently in a cold heading machining mode, the dimensional accuracy of the part is ensured to reach the standard, the performance meets the requirements, the device liberates production staff from monotonously repeated machining labor, the labor intensity of the staff is reduced, and the labor efficiency of the staff is improved.
Description
Technical Field
The utility model relates to the technical field of automobile part production, in particular to a cold heading die for manufacturing a double-flange special-shaped part.
Background
The part related to the project is cold heading part made of cold heading steel and aluminum alloy, the shape is more complex, the part is solid, one end and the middle part of the part are respectively provided with a flange, the part is a core functional part in an automobile safety belt, and the part is subjected to torsion, vibration and impact at the moment of vehicle impact and is required to be twisted for a certain number of turns without breaking, so that the part has high requirements on the strength and the product quality, and products with similar shapes are widely applied in other industries. At present, the parts are manufactured by adopting a machining process, the production efficiency is low, and the labor intensity of personnel is high.
The part is produced by adopting a cold heading mode, the production efficiency is higher, the number of planned production per year is more than one million, the production number of each batch is about 10 ten thousand, the product size is stable, and the performance and the comprehensive quality are also very high. Accordingly, there is a need for a cold heading die for manufacturing the above-described parts.
Disclosure of Invention
Therefore, the utility model provides a cold heading die for manufacturing a double-flange special-shaped part, which aims to solve the problems in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
according to a first aspect of the utility model, a cold heading die for manufacturing a double-flange special-shaped part comprises a die assembly and a male die assembly, wherein the die assembly comprises a die outer shell, a supporting piece, a forming plate, a forming jacking pipe, a conical nest die and an opening and closing die assembly, the supporting piece, the forming plate and the conical nest die are sequentially arranged in the die outer shell along the length direction of the die outer shell, one end of the supporting piece is abutted with one side of the forming plate, the other side of the forming plate is abutted with one end of the conical nest die, the forming plate and the conical nest die are both in sliding connection with the die outer shell, a through hole and a flange forming cavity are formed in the forming plate, the flange forming cavity is positioned at one end of the through hole, and one end of the forming jacking pipe is slidably arranged in the through hole;
the conical nest die is provided with a conical hole, the opening and closing die assembly is arranged in the conical hole in a sliding mode, the conical hole and the through hole are coaxial, the opening and closing die assembly comprises a plurality of clamping modules, the clamping modules form a round table-shaped structure after being surrounded, a clamping hole is formed in the central axis of the round table-shaped structure, and the male die assembly is opposite to the opening and closing die assembly.
Further, the novel automatic ejection mechanism comprises an ejection mechanism and an ejector rod, wherein the ejection mechanism comprises an ejection driving mechanism and an ejector rod, the supporting piece is columnar, a cylindrical channel is arranged on the central axis of the supporting piece, the ejector rod is arranged in the cylindrical channel in a sliding mode, and the output end of the ejection driving mechanism is connected with the ejector rod.
Further, a plurality of sliding grooves are formed in the inner wall of the conical nest die, a plurality of sliding grooves are distributed on the inner wall of the conical nest die in an annular array mode, a plurality of sliding rails are arranged on the outer side wall of the opening and closing die assembly and are in one-to-one correspondence with the sliding grooves, and each sliding rail is in sliding connection with one sliding groove.
Further, the opening and closing module assembly comprises three clamping modules, and the three clamping modules are identical in shape and size; three sliding grooves are formed in the inner wall of the conical nest die, each clamping module is provided with a sliding rail, and each clamping module is in sliding connection with one sliding groove through the sliding rail.
Further, the die assembly further comprises a friction spring, the friction spring is arranged in the die outer shell, the friction spring is arranged along the length direction of the die outer shell, and one end of the friction spring is abutted to one side, away from the conical nest die, of the forming plate.
Further, the die assembly further comprises a top block, the top block is arranged in the supporting piece, the top block is sleeved on the ejector rod, and the top block is in butt joint with one end of the formed ejector pipe.
Further, the die assembly further comprises an end cap disposed at an end of the dimple cone mold facing away from the forming plate.
Further, the male die assembly comprises a male die head and a male die driving mechanism, the male die head is arranged opposite to the opening and closing die assembly, and the male die driving mechanism is used for driving the male die head to move along the central axis of the female die outer shell.
Further, the female die outer shell is cylindrical.
Further, one end of the formed jacking pipe is provided with a flanging, and the flanging is abutted with the jacking block.
The utility model has the following advantages: by utilizing the cold heading die, the double-flange special-shaped part can be produced rapidly and efficiently in a cold heading machining mode, the dimensional accuracy of the part is ensured to reach the standard, the performance meets the requirements, the device liberates production staff from monotonously repeated machining labor, the labor intensity of the staff is reduced, and the labor efficiency of the staff is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be derived from the drawings provided without undue effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the scope of the utility model.
Fig. 1 is a cross-sectional view of a cold heading die for manufacturing a dual flange profiled part according to some embodiments of the utility model.
Fig. 2 is a block diagram of a workpiece machined by a cold heading die for manufacturing a dual-flange profiled part according to some embodiments of the utility model.
In the figure: 1. the die comprises a die shell body, 2, a supporting piece, 3, an ejector rod, 4, a friction spring, 5, an ejector block, 6, a forming plate, 7, a forming jacking pipe, 8, a conical nest die, 9, an opening and closing die assembly, 10, an end cover, 11, a male die head, 12, a workpiece, 13, a first rod body, 14, a second rod body, 15, a first flange, 16 and a second flange.
Detailed Description
Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
As shown in fig. 1, a cold heading die for manufacturing a dual-flange special-shaped part in an embodiment of a first aspect of the present utility model includes a die assembly and a punch assembly, the die assembly includes a die outer shell 1, a supporting member 2, a forming plate 6, a forming jacking pipe 7, a conical nest die 8 and an opening and closing die assembly 9, the supporting member 2, the forming plate 6 and the conical nest die 8 are sequentially arranged in the die outer shell 1 along the length direction of the die outer shell 1, one end of the supporting member 2 is abutted with one side of the forming plate 6, the other side of the forming plate 6 is abutted with one end of the conical nest die 8, the forming plate 6 and the conical nest die 8 are both in sliding connection with the die outer shell 1, a through hole and a flange forming cavity are arranged on the forming plate 6, one end of the flange forming cavity is arranged in the through hole in a sliding manner, and the flange forming cavity is formed by combining the forming jacking pipe 7 and the through hole;
the conical nest die 8 is provided with a conical hole, the opening and closing die assembly 9 is arranged in the conical hole in a sliding mode, the conical hole and the through hole are coaxial, the opening and closing die assembly 9 comprises a plurality of clamping modules, a round table-shaped structure is formed after the clamping modules are surrounded, the central axis of the round table-shaped structure is provided with a clamping hole, and the male die assembly is arranged opposite to the opening and closing die assembly 9.
In this embodiment, it should be noted that, the ejector mechanism further includes an ejector mechanism, the ejector mechanism includes an ejector driving mechanism and an ejector rod 3, the support member 2 is in a column shape, a cylindrical channel is disposed on a central axis of the support member 2, the ejector rod 3 is slidably disposed in the cylindrical channel, an output end of the ejector driving mechanism is connected with the ejector rod 3, the ejector mechanism is mechanically driven, and the female die shell 1 is in a cylindrical shape.
Further, as shown in fig. 1 and fig. 2, the workpiece 12 processed by the cold heading die comprises a first rod body 13, a second rod body 14, a first flange 15 and a second flange 16, wherein one end of the first rod body 13 is connected with one end of the second rod body 14, the first flange 15 is arranged at one end of the first rod body 13, which is away from the second rod body 14, the second flange 16 is arranged at the joint of the first rod body 13 and the second rod body 14, the first rod body 13 and the second rod body 14 are cylindrical, and the diameter of the first rod body 13 is larger than that of the second rod body 14; it should be noted that, the second flange 16 on the workpiece 12 is only processed by using the cold heading die, and the first flange 15 is a structure which is prefabricated in advance before being processed by using the cold heading die; when the part with the shape is manufactured by adopting a cold heading process, the difficulty is that: during cold heading of the part, all surfaces must be brought into contact with the surface of the die to control the flow of metal to achieve the desired part dimensions. Therefore, a typical cold-headed solid part must be placed into a mold to achieve this goal. The diameter dimension of the flange is larger than that of the middle part due to the shape of the double-flange solid part, and if the double-flange solid part is put into a straight-hole cylindrical mold, the middle part of the part is suspended and cannot contact the mold, so that the required part shape cannot be obtained. To cope with this problem, it is necessary that the mold wraps the part at the time of extrusion molding, maintaining close contact between the part and the mold surface. While the part must have an internal passageway space to allow the part to enter and exit as it enters and exits the mold. It is therefore necessary to use a mold having both open and closed states to achieve this.
Further, the specific process of machining by adopting the cold heading die is as follows, the part to be machined is put into the female die from the right side, and slides from right to left, so that the second rod body 14 is inserted into the formed jacking pipe 7. At this time, the mold opening and closing assembly 9 is in an opened state, the first rod body 13 enters the mold opening and closing assembly 9, the mold opening and closing assembly 9 is pushed by the male mold assembly to move leftwards and close, and the first rod body 13 is tightly held and clamped. Thereafter, the conical nest die 8, the opening and closing die assembly 9 and the forming plate 6 are moved together to the left, and the second flange 16 is press-formed inside the forming plate 6, resulting in the final formed work 10. Then the left side ejection mechanism of the die acts, the ejector rod 3 pushes the part to the right, so that the opening and closing die assembly 9 is driven to open, the part slides to the right, and finally the workpiece 10 is pushed out of the die and falls into the receiving channel. The next part to be machined then enters the mold and a new production cycle begins again.
The technical effects achieved by the embodiment are as follows: by utilizing the cold heading die, the double-flange special-shaped part can be produced rapidly and efficiently in a cold heading machining mode, the dimensional accuracy of the part is ensured to reach the standard, the performance meets the requirements, the device liberates production staff from monotonously repeated machining labor, the labor intensity of the staff is reduced, and the labor efficiency of the staff is improved. Compared with the machining production mode, the production efficiency is improved by more than 30 times, and 25000 pieces of production work can be completed every 8 hours.
Example 2
As shown in fig. 1, another cold heading die for manufacturing a dual-flange special-shaped part provided in this embodiment has a structure substantially the same as that of embodiment 1, and only different parts will be described below.
In this embodiment, a plurality of sliding grooves are formed in the inner wall of the conical nest die 8, a plurality of sliding grooves are distributed on the inner wall of the conical nest die 8 in an annular array, a plurality of sliding rails are arranged on the outer side wall of the opening and closing die assembly 9, the sliding rails are arranged in one-to-one correspondence with the sliding grooves, and each sliding rail is respectively connected with one sliding groove in a sliding manner.
In this embodiment, it should be noted that the opening and closing module 9 includes three clamping modules, which have the same shape and size; three sliding grooves are formed in the inner wall of the conical nest die 8, a sliding rail is arranged on each clamping module, and each clamping module is in sliding connection with one sliding groove through the sliding rail.
The technical effects achieved by the embodiment are as follows: the sliding rail and the sliding groove are matched with each other for use, so that the die opening and closing assembly 9 can slide along the inner wall of the conical nest die 8 in a directional manner more stably, and the die opening and closing assembly 9 is ensured to be opened and closed normally.
Example 3
As shown in fig. 1, another cold heading die for manufacturing a dual-flange special-shaped part provided in this embodiment has a structure substantially the same as that of embodiment 2, and only different parts will be described below.
In this embodiment, the die assembly still includes friction spring 4, and friction spring 4 sets up in die shell body 1, and friction spring 4 sets up along the length direction of die shell body 1, and one end and the shaping board 6 of friction spring 4 deviate from the one side butt of toper nest mould 8, through setting up friction spring 4, can provide effort left for shaping board 6, guarantee shaping board 6 closely laminates with toper nest mould 8.
In this embodiment, it should be noted that, the die assembly further includes a top block 5, the top block 5 is disposed in the supporting member 2, and the top block 5 is sleeved on the top rod 3, the top block 5 is abutted with one end of the formed top pipe 7, and the top block 5 with different thickness can be replaced during the processing process, so that the second flange 16 with different thickness can be processed.
Example 4
As shown in fig. 1, another cold heading die for manufacturing a dual-flange special-shaped part provided in this embodiment has a structure substantially the same as that of embodiment 1, and only different parts will be described below.
In this embodiment, the die assembly still includes end cover 10, and end cover 10 is the ring form, and end cover 10 sets up the one end that deviates from shaping board 6 at toper nest mould 8, and end cover 10 passes through bolt or rivet to be fixed on toper nest mould 8, through setting up end cover 10, can prevent that die assembly 9 from sliding out from toper nest mould 8 and dropping, uses safe and reliable more.
In this embodiment, it should be noted that the punch assembly includes a punch head 11 and a punch driving mechanism, where the punch head 11 is disposed opposite to the mold opening and closing assembly 9, and the punch driving mechanism is used to drive the punch head 11 to move along the central axis of the die outer shell 1; one end of the forming jacking pipe 7 is provided with a flanging, the flanging is abutted with the jacking block 5, and one end of the forming jacking pipe 7 deviating from the flanging and a through hole in the forming plate 6 jointly form a flange forming cavity.
While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.
The terms such as "upper", "lower", "left", "right", "middle" and the like are also used in the present specification for convenience of description, but are not intended to limit the scope of the present utility model, and the changes or modifications of the relative relationship thereof are considered to be within the scope of the present utility model without substantial modification of the technical content.
Claims (10)
1. The cold heading die for manufacturing the double-flange special-shaped part is characterized by comprising a die assembly and a male die assembly, wherein the die assembly comprises a die outer shell (1), a supporting piece (2), a forming plate (6), a forming jacking pipe (7), a conical nest die (8) and an opening and closing die assembly (9), the supporting piece (2), the forming plate (6) and the conical nest die (8) are sequentially arranged in the die outer shell (1) along the length direction of the die outer shell (1), one end of the supporting piece (2) is abutted with one side of the forming plate (6), the other side of the forming plate (6) is abutted with one end of the conical nest die (8), the forming plate (6) and the conical nest die (8) are both in sliding connection with the die outer shell (1), a through hole and a flange forming cavity are arranged on the forming plate (6), one end of the flange forming cavity is positioned at one end of the through hole, and one end of the forming plate (7) is arranged in the through hole in a sliding mode;
the conical nest die (8) is provided with a conical hole, the opening and closing die assembly (9) is arranged in the conical hole in a sliding mode, the conical hole and the through hole are coaxial, the opening and closing die assembly (9) comprises a plurality of clamping modules, the clamping modules form a round table-shaped structure after surrounding, a clamping hole is formed in the central axis of the round table-shaped structure, and the male die assembly is opposite to the opening and closing die assembly (9).
2. The cold heading die for manufacturing the double-flange special-shaped part according to claim 1, further comprising an ejection mechanism, wherein the ejection mechanism comprises an ejection driving mechanism and an ejector rod (3), the supporting piece (2) is columnar, a cylindrical channel is arranged on the central axis of the supporting piece (2), the ejector rod (3) is slidably arranged in the cylindrical channel, and the output end of the ejection driving mechanism is connected with the ejector rod (3).
3. The cold heading die for manufacturing the double-flange special-shaped part according to claim 1, wherein a plurality of sliding grooves are formed in the inner wall of the conical nest die (8), a plurality of sliding grooves are distributed on the inner wall of the conical nest die (8) in an annular array, a plurality of sliding rails are arranged on the outer side wall of the opening and closing die assembly (9), the sliding rails are arranged in one-to-one correspondence with the sliding grooves, and each sliding rail is respectively connected with one sliding groove in a sliding mode.
4. A cold heading die for manufacturing a double-flange profiled part according to claim 3, characterized in that the open-close die assembly (9) comprises three clamping modules, the three clamping modules being identical in shape and size; three sliding grooves are formed in the inner wall of the conical nest die (8), each clamping module is provided with a sliding rail, and each clamping module is in sliding connection with one sliding groove through the sliding rail.
5. Cold heading die for manufacturing double-flange special-shaped parts according to claim 1, characterized in that the die assembly further comprises a friction spring (4), wherein the friction spring (4) is arranged in the die outer shell (1), the friction spring (4) is arranged along the length direction of the die outer shell (1), and one end of the friction spring (4) is abutted with one side of the forming plate (6) away from the conical nest die (8).
6. Cold heading die for manufacturing double-flange special-shaped parts according to claim 2, characterized in that the die assembly further comprises a top block (5), the top block (5) is arranged in the supporting piece (2), the top block (5) is sleeved on the ejector rod (3), and the top block (5) is abutted with one end of the formed ejector pipe (7).
7. Cold heading die for manufacturing a double-flange profiled part according to claim 1, characterized in that the die assembly further comprises an end cap (10), which end cap (10) is arranged at the end of the conical socket die (8) facing away from the forming plate (6).
8. A cold heading die for manufacturing a double-flange special-shaped part according to claim 1, characterized in that the male die assembly comprises a male die head (11) and a male die driving mechanism, wherein the male die head (11) is arranged opposite to the opening and closing die assembly (9), and the male die driving mechanism is used for driving the male die head (11) to move along the central axis of the female die outer shell (1).
9. Cold heading die for manufacturing double-flange profiled parts according to claim 1, characterized in that the die outer shell (1) is cylindrical.
10. Cold heading die for manufacturing double-flange special-shaped parts according to claim 6, characterized in that one end of the forming jacking pipe (7) is provided with a flanging which is abutted with the jacking block (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223222622.8U CN219837122U (en) | 2022-12-02 | 2022-12-02 | Cold heading die for manufacturing double-flange special-shaped part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223222622.8U CN219837122U (en) | 2022-12-02 | 2022-12-02 | Cold heading die for manufacturing double-flange special-shaped part |
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| Publication Number | Publication Date |
|---|---|
| CN219837122U true CN219837122U (en) | 2023-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223222622.8U Active CN219837122U (en) | 2022-12-02 | 2022-12-02 | Cold heading die for manufacturing double-flange special-shaped part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219837122U (en) |
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2022
- 2022-12-02 CN CN202223222622.8U patent/CN219837122U/en active Active
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