CN222519564U - A die for outer diameter precision shrinkage cold extrusion molding process - Google Patents
A die for outer diameter precision shrinkage cold extrusion molding process Download PDFInfo
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- CN222519564U CN222519564U CN202420578505.5U CN202420578505U CN222519564U CN 222519564 U CN222519564 U CN 222519564U CN 202420578505 U CN202420578505 U CN 202420578505U CN 222519564 U CN222519564 U CN 222519564U
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000000641 cold extrusion Methods 0.000 title claims abstract description 32
- 238000000465 moulding Methods 0.000 title claims abstract description 21
- 238000001125 extrusion Methods 0.000 claims abstract description 62
- 239000000463 material Substances 0.000 claims abstract description 31
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000008207 working material Substances 0.000 description 15
- 238000003825 pressing Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
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Abstract
本实用新型公开了一种外径精缩冷挤压成型工艺用模具，涉及冷挤压技术领域，其技术方案要点包括进料端部和挤压部，所述进料端部内设置有进料槽，所述挤压部内设置有挤压槽，所述挤压槽的内径小于所述进料槽的内径，且所述挤压槽的接触面用于与加工材料接触。本实用新型通过外力作用于在加工材料上以使得加工材料产生塑性形变，以在该外径精缩冷挤压成型工艺用模具内使得加工材料的体积重新分布和转移，从而确保加工材料的质量和精度，其中将结合加工材料与该外径精缩冷挤压成型工艺用模具的内部接触面紧密贴合，再由挤压设备向该外径精缩冷挤压成型工艺用模具施加压力以完成加工材料的塑性形变，实现提高加工材料的成型精度和加工效率的目的。
The utility model discloses a mold for outer diameter precision shrinking cold extrusion molding process, which relates to the field of cold extrusion technology. The key points of its technical solution include a feed end and an extrusion part, wherein a feed groove is arranged in the feed end, and an extrusion groove is arranged in the extrusion part, wherein the inner diameter of the extrusion groove is smaller than the inner diameter of the feed groove, and the contact surface of the extrusion groove is used to contact with the processing material. The utility model applies external force to the processing material to cause the processing material to produce plastic deformation, so as to redistribute and transfer the volume of the processing material in the mold for outer diameter precision shrinking cold extrusion molding process, thereby ensuring the quality and precision of the processing material, wherein the processing material is tightly fitted with the internal contact surface of the mold for outer diameter precision shrinking cold extrusion molding process, and then the extrusion equipment applies pressure to the mold for outer diameter precision shrinking cold extrusion molding process to complete the plastic deformation of the processing material, thereby achieving the purpose of improving the molding precision and processing efficiency of the processing material.
Description
Technical Field
The utility model relates to the technical field of cold extrusion, in particular to a die for an external diameter precision cold extrusion molding process.
Background
Cold extrusion is mainly used for manufacturing various parts such as shafts, rods, pipes, gears and the like, and by applying pressure to materials at normal temperature, the size and direction of the pressure can be controlled by the shape and size of a die, so that accurate plastic deformation of blanks is realized, and the required shape and size are obtained.
The external diameter cold extrusion process is mainly used for processing sleeve products. In the current technology, the outer diameter of the finished product processed by adopting the conventional cold extrusion process is elliptical due to the limitation of the process, and the deviation of 5 to 10 wires exists, so that the subsequent assembly is adversely affected, and a shaping process is additionally required to be added for the generated deviation. However, the quality cannot be completely ensured due to the large number of process steps, and the improvement is needed.
Disclosure of Invention
In view of the above, the present application aims to provide a mold for an external diameter precision cold extrusion molding process, which aims to improve molding accuracy and processing efficiency. The specific scheme is as follows:
The utility model provides a mould for external diameter smart cold extrusion shaping technology, includes feed end and extrusion portion, be provided with the feed chute in the feed end, be provided with the extrusion groove in the extrusion portion, the internal diameter of extrusion groove is less than the internal diameter of feed chute, just the contact surface of extrusion groove is used for with the processing material contact.
Preferably, the feeding end is provided with a rounded corner at the notch of the feeding chute and an inner rounded corner at the end of the feeding chute connected with the extrusion chute.
Preferably, one end of the extrusion part, which is far away from the feeding end part, is abutted with a clamping plate, the inner diameter of the clamping plate is larger than that of the extrusion groove, and the inner diameter difference is 0-1 wire.
Preferably, the outer side of the extrusion part is connected with a connecting extrusion body, one end, close to the feeding end part, of the connecting extrusion body is provided with a connecting inclined wall integrally connected with the outer side of the extrusion part, and the other end of the connecting extrusion body is used for being in butt joint and fixation with the outer side of the clamping plate.
The clamping plate comprises a clamping plate, a connecting extrusion body, a connecting ring groove, a fixing sleeve ring and a clamping plate, wherein the connecting extrusion body is arranged at the outer side of one end of the connecting extrusion body, which is far away from the feeding end, the connecting extrusion body is provided with the connecting ring groove and the fixing sleeve ring, the fixing sleeve ring comprises a fixing part and an outer ring part which are integrally formed, one end of the clamping plate is inserted into the connecting extrusion body, the other end of the clamping plate penetrates out of the connecting extrusion body, the fixing part is detachably inserted into the connecting ring groove in a plugging manner, and the outer ring part is detachably sleeved and fixed at the corresponding end of the clamping plate.
Preferably, the clamping plate consists of a plurality of clamping petals which are distributed in equal radian and are mutually in abutting connection.
According to the scheme, the die for the external diameter precision cold extrusion molding process has the advantages that external force acts on a processing material to enable the processing material to generate plastic deformation, so that the volume of the processing material is redistributed and transferred in the die for the external diameter precision cold extrusion molding process, the quality and the precision of the processing material are ensured, the processing material is tightly attached to the inner contact surface of the die for the external diameter precision cold extrusion molding process, and pressure is applied to the die for the external diameter precision cold extrusion molding process by extrusion equipment to complete the plastic deformation of the processing material, so that the strength and the hardness of the obtained processing material are remarkably improved through the die for the external diameter precision cold extrusion molding process, and the effects of reducing the processing procedure and improving the production efficiency are achieved.
Drawings
Fig. 1 is a schematic structural view of the present embodiment;
Fig. 2 is a schematic structural view of the processed material of the present embodiment.
The reference numerals are 1, a feeding end part, 11, a feeding groove, 12, a rounding, 13, an inner chamfering, 2, an extrusion part, 21, an extrusion groove, 22, a connecting extrusion body, 221, a connecting ring groove, 222, a connecting inclined wall, 3, a clamping plate, 31, a blanking cavity, 4, a fixing collar, 41, a fixing part, 42, an outer ring part, 5, a processing material, 51, a cylinder groove, 52 and a cylinder wall.
Detailed Description
In order to make the technical solution and advantages of the present utility model more apparent, the present utility model will be described in more detail below with reference to the accompanying drawings, wherein it is apparent that the embodiments described are only some embodiments of the present utility model, 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.
It should be noted that the working material 5 of the present application, as shown in fig. 2, includes a barrel groove 51 and a barrel wall 52 at one end, and the working material 5 is extruded after one end having the barrel groove 51 and the barrel wall 52 is inserted into the extrusion part 2 through the feeding end part 1, and the working material 5 is completely placed in the extrusion part 2. Of course, the working material 5 may also be a shaft, a rod, a tube, or the like suitable for cold extrusion, and will not be described herein.
As shown in fig. 1, a die for an external diameter precision cold extrusion molding process comprises a feeding end part 1 and an extrusion part 2. A feed chute 11 is provided in the feed end 1 so that the process material 5 passes efficiently through the feed chute 11 and into the press section 2. The re-extrusion section 2 is provided therein with an extrusion groove 21, and the inside diameter of the extrusion groove 21 is smaller than the inside diameter of the feed chute 11, and the contact surface of the extrusion groove 21 is for contact with the work material 5. Therefore, the working material 5 is placed in the pressing portion 2 so as to be in contact with the contact surface in the pressing portion 2, and then pressure is applied to the mold for the external diameter precision cold extrusion process, whereby the working material 5 is plastically deformed.
It should be noted that, the feeding end 1 is provided with a rounded corner 12 located at the notch of the feeding groove 11, and the feeding end 1 is provided with an inner chamfer 13 located at the connecting end of the feeding groove 11 and the extrusion groove 21, so as to further reduce the difficulty of assembling the processing material 5 into the extrusion groove 21.
In order to avoid plastic deformation of the working material 5 during stripping, which affects the quality and precision of the working material 5, a clamping plate 3 is abutted against one end of the extrusion part 2 away from the feeding end part 1. The blanking cavity 31 is arranged in the clamping plate 3, the inner diameter of the blanking cavity 31 is larger than that of the extrusion groove 21, and the inner diameter difference is 0-1 wire, so that the difficulty in moving the processing material 5 into the blanking cavity 31 is reduced while effective unloading is realized.
A connection pressing body 22 is connected to the outside of the pressing portion 2. One end of the connecting extrusion body 22, which is close to the feeding end part 1, is provided with a connecting inclined wall 222 integrally connected with the outer side of the extrusion part 2, and the other end is used for being in abutting connection and fixation with the outer side of the clamping plate 3. For the purpose of effective connection of the clamping plate 3, a connection ring groove 221 and a fixing collar 4 are provided outside the end of the connection ram 22 remote from the feed end 1. The fixing collar 4 includes an integrally formed fixing portion 41 and an outer ring portion 42. One end of the clamping plate 3 is inserted into the connecting extrusion body 22, the other end of the clamping plate is penetrated out of the connecting extrusion body 22, the fixing part 41 is detachably inserted and fixed in the connecting ring groove 221, and the outer ring part 42 is detachably sleeved and fixed at the corresponding end of the clamping plate 3. Therefore, in the process of extruding the processing material 5 and removing the processing material, the processing material 5 is moved into the blanking cavity 31, at this time, the blanking cavity 31 and the processing material 5 are in contact with each other, and the outer ring portion 42 is separated from the clamping plate 3 by opening the outer ring portion 42 and the fixing portion 41, and the fixing portion 41 is separated from the connecting extrusion body 22, so that the clamping plate 3 is pulled out from the connecting extrusion body 22, and the processing material 5 is pulled out from the clamping plate 3, thereby remarkably reducing the construction difficulty, and improving the quality and precision of the processing material 5.
Meanwhile, the clamping plate 3 is composed of a plurality of clamping petals which are distributed in equal radian and are mutually in butt connection, so that the purpose of further reducing the stripping difficulty of the processed material 5 is achieved.
In summary, the present application provides a mold for an external diameter finishing cold extrusion process, which acts on a working material 5 by an external force to plastically deform the working material 5, so as to redistribute and transfer the volume of the working material 5 within the mold for the external diameter finishing cold extrusion process, thereby ensuring the quality and precision of the working material 5, wherein an inner contact surface of the mold for the external diameter finishing cold extrusion process and the working material 5 are closely bonded, and then a pressing force is applied to the mold for the external diameter finishing cold extrusion process by an extrusion device to complete the plastic deformation of the working material 5, so that the mold for the external diameter finishing cold extrusion process has the effects of remarkably improving the strength and hardness of the obtained working material 5, reducing the working process and improving the production efficiency.
The references to "first," "second," "third," "fourth," etc. (if present) are used to distinguish similar objects from each other and are not necessarily used to describe a particular order or sequence. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, or apparatus.
It should be noted that the description of "first", "second", etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implying an indication of the number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.
While the principles and embodiments of the present application have been described in detail in this application, the foregoing embodiments are provided to facilitate understanding of the principles and concepts of the application and are further provided by one of ordinary skill in the art to which the application pertains.
Claims (5)
1. A die for an external diameter precision cold extrusion molding process is characterized by comprising a feeding end part (1) and an extrusion part (2), wherein a feeding groove (11) is arranged in the feeding end part (1), an extrusion groove (21) is arranged in the extrusion part (2), the inner diameter of the extrusion groove (21) is smaller than that of the feeding groove (11), the contact surface of the extrusion groove (21) is used for being in contact with a processing material (5), one end, far away from the feeding end part (1), of the extrusion part (2) is abutted against a clamping plate (3), the inner diameter of the clamping plate (3) is larger than that of the extrusion groove (21), and the inner diameter difference is 0-1 wire.
2. A mold for an external diameter precision cold extrusion molding process as set forth in claim 1, wherein said feed end portion (1) is provided with a rounded corner (12) located at a notch of said feed tank (11), and an inner chamfer (13) located at a connecting end of said feed tank (11) and said extrusion tank (21).
3. The die for the external diameter precision cold extrusion molding process according to claim 1, wherein a connecting extrusion body (22) is connected to the outer side of the extrusion part (2), one end, close to the feeding end part (1), of the connecting extrusion body (22) is provided with a connecting inclined wall (222) integrally connected with the outer side of the extrusion part (2), and the other end is used for being in abutting connection and fixation with the outer side of the clamping plate (3).
4. The die for the external diameter precision cold extrusion molding process according to claim 3, wherein a connecting ring groove (221) and a fixing collar (4) are arranged on the outer side of one end, far away from the feeding end portion (1), of the connecting extrusion body (22), the fixing collar (4) comprises a fixing portion (41) and an outer ring portion (42) which are integrally formed, one end of the clamping plate (3) is inserted into the connecting extrusion body (22), the other end of the clamping plate penetrates out of the connecting extrusion body (22), the fixing portion (41) is detachably inserted into the connecting ring groove (221), and the outer ring portion (42) is detachably sleeved and fixed at the corresponding end of the clamping plate (3).
5. The die for the external diameter precision cold extrusion molding process as set forth in claim 4, wherein the clamping plate (3) is composed of a plurality of clamping flaps which are distributed in equal radian and are in abutting connection with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420578505.5U CN222519564U (en) | 2024-03-25 | 2024-03-25 | A die for outer diameter precision shrinkage cold extrusion molding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420578505.5U CN222519564U (en) | 2024-03-25 | 2024-03-25 | A die for outer diameter precision shrinkage cold extrusion molding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222519564U true CN222519564U (en) | 2025-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420578505.5U Active CN222519564U (en) | 2024-03-25 | 2024-03-25 | A die for outer diameter precision shrinkage cold extrusion molding process |
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| Country | Link |
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| CN (1) | CN222519564U (en) |
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- 2024-03-25 CN CN202420578505.5U patent/CN222519564U/en active Active
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