CN219541606U

CN219541606U - Double-cup type plate forging forming die

Info

Publication number: CN219541606U
Application number: CN202320538911.4U
Authority: CN
Inventors: 谈天宁; 庄新村
Original assignee: WUXI PENDE VEHICLE PARTS CO Ltd
Current assignee: WUXI PENDE VEHICLE PARTS CO Ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-08-18
Anticipated expiration: 2033-03-20

Abstract

The utility model discloses a double-cup type plate forging forming die which comprises a male die and a female die for press forging forming a blank, wherein the male die comprises an outer male die and an inner male die, the outer male die is in clearance fit with the outer side of the inner male die, the female die comprises a female die core and a floating female die, the floating female die is in clearance fit with the outer side of the female die core, and the optimal section shape is obtained by regulating and controlling metal flow in a forming process. Under the action of compressive stress, the forming performance and precision of the plate are obviously improved, a process chain can be effectively shortened, the forming and manufacturing of the double-cup type low-carbon steel structural member with non-uniform wall thickness or integrated functional characteristics can be realized, compared with the traditional hot forging forming, the forming precision and the surface quality are good, the material utilization rate is high, the subsequent machining allowance can be greatly reduced, compared with the powder metallurgy and machining methods, the obtained double-cup type part has high strength, and the application requirement with higher mechanical property requirement can be met.

Description

Double-cup type plate forging forming die

Technical Field

The utility model relates to the technical field of sheet metal forming, in particular to a double-cup type plate forging forming die.

Background

In the era that fuel economy is pursued for fuel vehicles and extremely long-range is pursued for pure electric vehicles, various factories are striving to achieve light-weight structures, one of the approaches is compact design and functional integration of parts, and the double-cup-shaped part is a local functional feature integration and has a structural member with large surface and wall thickness difference.

The existing double-cup type part processing mode adopts a mode of combining a plurality of parts or adopts a hot forging forming mode, the use strength of the double-cup type part processing mode cannot be guaranteed by adopting the mode of combining the plurality of parts, and the double-cup type part processing mode adopts the hot forging forming mode, and has the advantages of high energy consumption, poor forming precision and surface quality, large machining allowance required subsequently and low material utilization rate.

Disclosure of Invention

First, the technical problem to be solved

In order to overcome the defects in the prior art, a double-cup type plate forging forming die is provided, and the obtained double-cup type part is high in strength, good in forming precision and surface quality and improved in material utilization rate.

(II) technical scheme

The utility model is realized by the following technical scheme: the utility model provides a double-cup type plate forging forming die which comprises a male die and a female die for press forging forming of blanks, wherein the male die comprises an outer male die and an inner male die, the outer male die is in clearance fit with the outer side of the inner male die, the female die comprises a female die core and a floating female die, and the floating female die is in clearance fit with the outer side of the female die core.

Further, the outer male die is of an annular structure.

Furthermore, the female die core is provided with a round angle.

Further, the floating female die is of an annular structure, and the inner diameter of the upper end of the floating female die is smaller than the inner diameter of the lower end of the floating female die.

Further, a transition bevel angle is arranged on the inner side of the floating female die.

(III) beneficial effects

Compared with the prior art, the utility model has the following beneficial effects:

the double-cup type plate forging forming die combines upsetting, extruding and other volume forming processes with plate drawing and other stamping forming processes, and obtains the optimal section shape by regulating and controlling metal flow in the forming process. Under the action of compressive stress, the forming performance and precision of the plate are obviously improved, a process chain can be effectively shortened, the forming and manufacturing of the double-cup type low-carbon steel structural member with non-uniform wall thickness or integrated functional characteristics can be realized, compared with the traditional hot forging forming, the forming precision and the surface quality are good, the material utilization rate is high, the subsequent machining allowance can be greatly reduced, compared with the powder metallurgy and machining methods, the obtained double-cup type part has high strength, and the application requirement with higher mechanical property requirement can be met.

Drawings

FIG. 1 is a schematic view of the structure of a double cup type part of the present utility model.

Fig. 2 is a schematic structural view of the present utility model.

Fig. 3 is a schematic illustration of the first stage process of forming of the present utility model.

Fig. 4 is a schematic illustration of the second stage process of forming of the present utility model.

1-blank; 2-male die; 3-female die; 21-an outer punch; 22-an inner punch; 31-a female die core; 32-floating die.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The double-cup type plate forging forming die shown in fig. 2-4 comprises a male die 2 and a female die 3 for forging a blank 1, wherein the blank 1 is formed by upsetting in a previous process and is of a cylindrical structure, the bottom of the blank is kept at a round angle or a right angle, the male die 2 comprises an outer male die 21 and an inner male die 22, the outer male die 21 is in clearance fit with the outer side of the inner male die 22, the outer male die 21 is an annular male die and is used for applying load so as to upset the side wall of the blank 1 to realize thickening of the wall thickness, the effect of providing positive extrusion acting force is achieved at the later stage of a forming stage, the material flows to the lower side of a cylinder bottom, the forming of the double-cup type structure is facilitated, the inner male die 22 is mainly used for pressure maintaining in the first stage of forming, excessive material flow to the cylinder bottom is avoided, the side wall material is insufficient, the effect of effective thickening cannot be achieved, the inner male die 22 is matched with the outer male die 21 to synchronously press down in the second stage of the forming process, so that the bottom material and the side wall material flow downwards to the bottom of the barrel of the blank 1 together to form a double-cup structure, the female die 3 comprises a female die core 31 and a floating female die 32, the floating female die 32 is in clearance fit with the outer side of the female die core 31, the female die core 31 is kept motionless all the time in the whole forming process, the female die core 31 is provided with round corners, the material can flow conveniently, the floating female die 32 is of an annular structure, the inner diameter of the upper end of the floating female die 32 is smaller than the inner diameter of the lower end of the floating female die 32, the inner diameter difference is the wall thickness thickening amount of the side wall, and the middle part of the inner side of the floating female die 32 is provided with a transition bevel angle.

When the double-cup type plate forging forming die is specifically used, firstly, downward loading forces F1 and F2 are respectively applied to an outer punch 21 and an inner punch 22, upward loading force F3 is applied to a floating female die 32 to perform pressure maintaining treatment on a blank 1, so that the phenomenon that excessive materials flow to the bottom of a cylinder to cause insufficient side wall materials and cannot effectively thicken is avoided; finally, after the load force is changed to F4 and F5, the applied load force is kept unchanged, and the outer punch 21 and the floating die 32 continuously descend under the action of the load force, namely, in the second stage forming process of the utility model, so that the blank 1 finally forms a double-cup structure as shown in fig. 1.

The above examples are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the spirit and scope of the present utility model. Various modifications and improvements of the technical scheme of the present utility model will fall within the protection scope of the present utility model without departing from the design concept of the present utility model, and the technical content of the present utility model is fully described in the claims.

Claims

1. The utility model provides a two cup template forging forming die, includes terrace die (2) and die (3) that will swage forming stock (1), its characterized in that: the male die (2) comprises an outer male die (21) and an inner male die (22), the outer male die (21) is in clearance fit with the outer side of the inner male die (22), the female die (3) comprises a female die core (31) and a floating female die (32), and the floating female die (32) is in clearance fit with the outer side of the female die core (31).

2. A dual cup form forging die as recited in claim 1, wherein: the outer convex die (21) is of an annular structure.

3. A dual cup form forging die as recited in claim 1, wherein: and a round angle is arranged on the female die core (31).

4. A dual cup form forging die as recited in claim 1, wherein: the floating die (32) is of annular configuration and has an inner diameter at its upper end that is smaller than the inner diameter at its lower end.

5. A dual cup form forging die as recited in claim 2, wherein: the inner side of the floating female die (32) is provided with a transition bevel angle.