CN214290426U

CN214290426U - Die structure for upsetting small-size workpiece

Info

Publication number: CN214290426U
Application number: CN202023251539.4U
Authority: CN
Inventors: 吕晶; 张连防; 刘长庆
Original assignee: Dalian Shentong Mould Co ltd
Current assignee: Dalian Shentong Mould Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-09-28
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a mould structure of small-size work piece upset, including upper die mechanism and lower die mechanism, upper die mechanism has the holding plate, the backing plate of unloading, stripper and die, and lower die mechanism has the terrace die that holds the plate down, takes off the flitch and match with the die, the terrace die include that the terrace die inserts and fix the terrace die core bar in the vertical hole of terrace die insert. The utility model discloses a mould structure of small-size work piece upset, because the terrace die includes the terrace die insert and fixes the terrace die core bar in the vertical hole of terrace die insert, the terrace die comprises two parts mutual fixed connection promptly, can not produce stress concentration on the terrace die during punching press upset forging operation, simple structure, the terrace die is not fragile, has obviously improved the life of terrace die and die device to work efficiency has been improved.

Description

Die structure for upsetting small-size workpiece

Technical Field

The utility model relates to a mould, especially a mould structure of small-size work piece jumping-up.

Background

The die for upsetting the flanging hole part of the small-size workpiece (shown in figure 6) comprises an upper die mechanism and a lower die mechanism, wherein the upper die mechanism is provided with an upper retaining plate, a discharging base plate, a discharging plate and a female die, and the lower die mechanism is provided with a lower retaining plate, a discharging plate and a male die matched with the female die. During upsetting operation, a workpiece is sleeved on the upper part of a male die, when an upper die mechanism and a lower die mechanism are closed, the upper end of the male die is inserted into a corresponding hole of an upper female die, and upsetting treatment is performed on a flanging hole part of a small workpiece through the male die and the female die. Wherein the male die is of an integral structure, as shown in figure 5: the diameters of the upper part and the lower part of the male die are different, steps are machined, stress concentration is generated at the arc tangent point of the steps when the male die is stressed in the working process, cracks or fractures are easily generated, and the service life of the die is influenced.

Disclosure of Invention

The utility model aims at providing a simple structure, atress do not produce stress concentration, not fragile, improve terrace die and mould life's small-size work piece upset die structure.

The utility model discloses a mould structure of small-size work piece upset, including upper die mechanism and lower die mechanism, upper die mechanism has the holding plate, the backing plate of unloading, stripper and die, and lower die mechanism has the terrace die that holds the plate down, takes off the flitch and match with the die, the terrace die include that the terrace die inserts and fix the terrace die core bar in the vertical hole of terrace die insert.

The utility model discloses a mould structure of small-size work piece upset, because the terrace die includes the terrace die insert and fixes the terrace die core bar in the vertical hole of terrace die insert, the terrace die comprises two parts mutual fixed connection promptly, can not produce stress concentration on the terrace die during punching press upset forging operation, simple structure, the terrace die is not fragile, has obviously improved the life of terrace die and die device to work efficiency has been improved.

Drawings

Fig. 1 is a schematic structural view of the upper die mechanism and the lower die mechanism separated according to the embodiment of the present invention.

Fig. 2 is a schematic structural view of the upper die mechanism and the lower die mechanism separated from each other and loaded with a workpiece according to the embodiment of the present invention.

Fig. 3 is a schematic structural view of the upper mold mechanism and the lower mold mechanism when closing the mold according to the embodiment of the present invention.

Fig. 4 is a schematic view of a convex mold structure in the embodiment of the present invention.

Figure 5 is a schematic view of a prior art male mold structure.

Fig. 6 is a schematic view of a small workpiece with a flanging structure.

Detailed Description

As shown in FIGS. 1 to 3: the utility model discloses a mould structure of small-size work piece upset thick, including upper die mechanism and lower die mechanism, upper die mechanism has holding plate 2, unloading backing plate 3, stripper 4 and die 1. The lower die mechanism is provided with a lower holding plate 6, a stripper plate 5 and a male die matched with the female die 1. As shown in fig. 4: the male die comprises a male die insert 8 and a male die core rod 7 fixed in a longitudinal inner hole of the male die insert 8. The utility model discloses a mould structure of small-size work piece upset, because the terrace die includes terrace die insert 8 and fixes terrace die core bar 7 in the vertical hole of terrace die insert 8, the terrace die comprises two parts fixed connection each other promptly, can not produce stress concentration on the terrace die during punching press upset forging operation, simple structure, the terrace die is not fragile, has obviously improved the life of terrace die and die set to work efficiency has been improved. As shown in fig. 2, 3 and 6: the small workpiece 9 has a round corner 10 at the flanging position, and the upsetting treatment can be carried out on the flanging position through the die, so that the flanging part and the round corner thereof meet the design requirements.

Claims

1. The utility model provides a mould structure of small-size work piece upset, includes upper die mechanism and lower die mechanism, and upper die mechanism has holding plate (2), the backing plate (3) of unloading, stripper (4) and die (1), and lower die mechanism has holding plate (6) down, takes off flitch (5) and the terrace die that matches with die (1), its characterized in that: the male die comprises a male die insert (8) and a male die core rod (7) fixed in a longitudinal inner hole of the male die insert (8).