Squirrel-cage extrusion guide bracket
The design of the squirrel-cage extrusion guide bracket solves the problem of mold instability in the cold extrusion of ultra-long thin-walled aluminum barrels, achieves stable guidance and adaptability, and improves production efficiency and product quality.
Patent Information
- Application Number
- CN202422968076.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-12-03
AI Technical Summary
In the cold extrusion production of ultra-long thin-walled aluminum barrels, the existing technology has problems such as excessive mold length leading to unstable press stroke, heavy mold weight, high cost and inability to adapt to different models of products.
A squirrel cage extrusion guide bracket is adopted, including a prestressed combined die, a support seat, a support column, a guide pressure plate and a lower die seat. The guide pressure plate is supported by the support column, and combined with the prestressed combined die and punch, the guidance is achieved to adapt to different models of products.
It achieves stable guidance of the punch, improves production stability and yield rate, reduces mold weight, reduces production costs, and can adapt to the production needs of different models of products.
Smart Images
Figure CN223418159U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a squirrel-cage type extrusion guide bracket used in the field of cold extrusion processing. Background Art
[0002] In the cold extrusion production process of ultra-long, thin-walled aluminum barrels (such as hydrogen fuel cell housings), the length of the product is too long, which in turn causes the length of the die to be too long, further increasing the stroke of the press during production. This can easily lead to unstable punch movement throughout the entire press stroke, thus affecting process stability and yield. Therefore, it is necessary to guide the punch's processing stroke. Although using an integrated, ultra-long closed die barrel to guide the punch can significantly improve stability, it also presents the following problems: 1. The overall mass of the device is large and handling is unchanged; 2. The device requires a large amount of raw materials for production, which is difficult and costly; 3. It is impossible to adjust the adaptability of different product models. For each product type, a corresponding mold must be designed separately, which is cost-effective. Utility Model Content
[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a squirrel-cage extrusion guide bracket, which can realize stable and reliable production and processing of ultra-long thin-walled aluminum barrels.
[0004] A technical solution to achieve the above object is: a squirrel cage extrusion guide bracket, comprising a prestressed combined die and punch, a lower die plate, a support seat, a support column, a guide pressure plate and a lower die seat;
[0005] A support seat is provided on the lower template, and a prestressed combined die that cooperates with the support seat is provided on the inner side of the support seat; a plurality of support columns are connected to the support seat, and the support columns support the guide plate above the die, and the punch passes through the guide plate and is arranged toward the prestressed combined die, and the punch is connected to the press;
[0006] A lower die base is arranged on the outer side of the support base on the lower template, and the lower die base is used to fix the entire lower template, the support base, the support column and the guide pressure plate.
[0007] Furthermore, the guide pressure plate is composed of a pressure plate and a guide ring. A step structure opening is opened on the inner side of the pressure plate. The guide ring is clamped on the step structure and connected to the pressure plate through fasteners. A guide hole is opened in the middle of the guide ring, and the inner diameter of the guide hole matches the outer diameter of the punch.
[0008] Furthermore, the rim of the support seat extends inward to form an inner edge structure, and the inner edge structure presses the upper surface of the prestressed combined die.
[0009] Furthermore, the prestressed composite die is integrated with the guide pressure plate through the support seat and the support column.
[0010] 5Further, the prestressed combined die is fixed on the lower die plate through the lower die base, the lower die base fixing ring and the lower die cover plate.
[0011] Further, the bottom center of the lower die plate is provided with an ejector rod for ejecting the workpiece.
[0012] The mouse cage type extrusion guide support has the following advantages:
[0013] 1. The stroke of the convex die of the super-long structure is guided by the guide pressing plate and the prestressed combined structure, so that the whole extrusion process is in effective guidance.
[0014] 2. The structure is novel, the periphery adopts the structure of supporting column supporting the guide pressing plate instead of the super-long die cylinder, so that the machining difficulty of the super-long die cylinder is solved, the mold material is saved, and the mold weight is reduced.
[0015] 3. The guide ring of the guide pressing plate, the combined die and the convex die can be adjusted according to the different product model numbers, so that the support can adapt to the production of different types of products. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structure diagram of the mouse cage type extrusion guide support. DETAILED DESCRIPTION
[0017] In order to better understand the technical scheme of the utility model, the following will be described in detail through specific examples:
[0018] Please refer to Figure 1 The mouse cage type extrusion guide support comprises a prestressed combined die 1, a convex die 2, a lower die plate 3, a supporting seat 4, a supporting column 5, a guide pressing plate 6 and a lower die base 7.
[0019] The supporting seat 4 is provided on the lower die plate 3, and the prestressed combined die 2 matched with the supporting seat is arranged on the inner side of the supporting seat 4.
[0020] The mouth edge of the supporting seat 4 extends inwardly to form an inner edge structure, the inner edge structure tightly presses the upper surface of the prestressed combined die 2, and the downward pressure is applied to the combined die 2 for fixation.
[0021] The supporting column 5 supports the guide pressing plate 6 above the lower die plate 3, and the supporting column 5, the supporting seat 4 and the guide pressing plate 6 are all connected and fixed by fasteners to form an integral whole. The convex die 2 passes through the guide pressing plate 6 and is arranged towards the combined die 1, and the convex die is connected with the pressing machine. As preferred, 8 supporting columns are arranged on the supporting seat 4 at equal intervals and angles.
[0022] The guide platen 6 consists of a pressure plate and a guide ring 62. A stepped opening is formed on the inner side of the pressure plate. The guide ring 62 is clipped onto the stepped opening and connected to the pressure plate 61 via fasteners. A guide hole is formed in the middle of the guide block 62. The inner diameter of the guide hole 62 matches the outer diameter of the punch. The corresponding guide block can be replaced according to the product and punch model.
[0023] A lower die base 7 is provided on the outer side of the support base 4 on the base 3. The bottom of the lower die base 7 is provided with a step structure, and the lower die base 7 is fixed to the surface of the lower template 3 by a lower die base fixing ring 8 and fasteners. The lower die base 7 plays the role of fixing the entire structure.
[0024] The lower die base 7 further comprises a lower die cover plate 11. The lower die cover plate 11 presses the upper surface of the support base 4. A through hole is provided in the middle of the lower die cover plate 11 for the punch to pass through and guide the punch.
[0025] A push rod 9 is provided at the center of the bottom of the lower template 3 to facilitate ejecting the workpiece and unloading.
[0026] This squirrel-cage extrusion guide bracket, designed for the punch, guides the punch throughout its entire stroke via the guide platen, ensuring stable motion. This ensures a smooth and reliable extrusion process, significantly improving product yield. Furthermore, the bracket utilizes a support column to support the guide platen, eliminating the need for an extra-long die barrel. This solves the manufacturing challenges associated with this type of barrel, conserves die material, and reduces die weight.
[0027] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.
Claims
1. A squirrel cage extrusion guide bracket, comprising a prestressed combined die and punch, characterized in that: It also includes a lower mold plate, a support base, a support column, a guide plate and a lower mold base; A support seat is provided on the lower template, and a prestressed combined die that cooperates with the support seat is provided on the inner side of the support seat; a plurality of support columns are connected to the support seat, and the support columns support the guide plate above the die, and the punch passes through the guide plate and is arranged toward the prestressed combined die, and the punch is connected to the press; A lower die base is arranged on the outer side of the support base on the lower template, and the lower die base is used to fix the entire lower template, the support base, the support column and the guide pressure plate.
2. The squirrel cage extrusion guide bracket according to claim 1, characterized in that: The guide pressure plate consists of a pressure plate and a guide ring. A step structure opening is opened on the inner side of the pressure plate. The guide ring is clamped on the step structure and connected to the pressure plate through fasteners. A guide hole is opened in the middle of the guide ring, and the inner diameter of the guide hole matches the outer diameter of the punch.
3. The squirrel cage extrusion guide bracket according to claim 1, characterized in that: The rim portion of the support seat extends inward to form an inner edge structure, and the inner edge structure presses the upper surface of the prestressed combined die.
4. The squirrel cage extrusion guide bracket according to claim 3, characterized in that: The prestressed combined die is integrated with the guide pressing plate through a support seat and a support column.
5. The squirrel cage extrusion guide bracket according to claim 4, characterized in that: The prestressed combined concave die is fixed on the lower die plate through a lower die base, a lower die base fixing ring and a lower die cover plate.
6. The squirrel cage extrusion guide bracket according to claim 1, characterized in that: A push rod for ejecting the workpiece is arranged at the center of the bottom of the lower template.