CN211990785U

CN211990785U - Mould demoulding structure with horizontal hole cavity forging

Info

Publication number: CN211990785U
Application number: CN202020628687.4U
Authority: CN
Inventors: 徐文翠; 吴艳丽; 赵文成; 代锦阳
Original assignee: Zhongye Heavy Industry Tangshan Co ltd
Current assignee: Zhongye Heavy Industry Tangshan Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-11-24
Anticipated expiration: 2030-04-23

Abstract

The utility model relates to a forge mould, especially a mould demoulding structure with horizontal hole chamber forging. The forging die comprises a lower female die, an upper female die and an upper male die, wherein a left horizontal male die and a right horizontal male die which are the same in structure are symmetrically arranged between the lower female die and the upper female die, opposite ends of the left horizontal male die and the right horizontal male die are respectively of a stepped shaft structure, shaft head parts of the left horizontal male die and the right horizontal male die are used for punching horizontal holes of a forging, shaft shoulders of the left horizontal male die and the right horizontal male die are respectively provided with an annular groove structure, and the ring width of the groove structure extends from outside to inside to the outer circumference of the shaft head part. The utility model discloses a groove structure of horizontal terrace die shaft shoulder provides and goes up the required drawing of patterns power of in-process on terrace die and the last die after forging, has avoided only providing this drawing of patterns power by the axle head portion of horizontal terrace die, and the horizontal terrace die axle head portion bending deformation that causes and produce defects such as crackle or even fracture in the axle shoulder junction, and then has improved the life of horizontal terrace die, has reduced cost of maintenance.

Description

Mould demoulding structure with horizontal hole cavity forging

Technical Field

The utility model relates to a forge mould, especially a mould demoulding structure with horizontal hole chamber forging.

Background

When the die is opened after forging, the forging is often adhered to the cavity of the upper female die due to the appearance structure characteristics of the forging or the longitudinal flash generated in the forming process, and a demolding device with a complex structure is required to be added or a demolding gasket is stuffed into the vertical cavity to be demolded in a mode that the upper male die repeatedly descends, so that the production process cannot be continuous and automatic, the production beat is prolonged, the production efficiency is reduced, and the forging cost is increased.

When the die with the horizontal hole cavity forging piece is demolded, an upper die is usually adopted for demolding firstly, and a horizontal male die is demolded afterwards, so that the limiting effect is achieved, the horizontal male die is bent and broken frequently in the forging process, the maintenance cost is increased, the forging continuity is influenced, and the production efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving above-mentioned technical problem and provide a mould demoulding structure with horizontal hole chamber forging, prevent that horizontal terrace die from damaging.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a mould demoulding structure with horizontal hole chamber forging, includes lower die, goes up the die, vertical last terrace die of arranging in last die, the symmetry is equipped with the same left horizontal terrace die of structure and right horizontal terrace die between lower die and the last die, the opposite ends of left horizontal terrace die and right horizontal terrace die are stepped shaft structure respectively, the horizontal hole that the axle head portion of left horizontal terrace die and right horizontal terrace die was used for punching out the forging, the shaft shoulder of left horizontal terrace die and right horizontal terrace die is equipped with annular groove structure respectively, the width outside-in of ring of groove structure extends to the outer circumference of axle head portion.

Adopt above-mentioned technical scheme the utility model discloses compare with prior art, beneficial effect is:

the groove structure of the shaft shoulder of the horizontal male die provides the demolding force required in the ascending process of the upper male die and the upper female die after forging, so that the defects that the shaft head part of the horizontal male die is bent and deformed, cracks are generated at the shaft shoulder joint part and the shaft shoulder is even broken and the like due to the fact that the shaft head part of the horizontal male die provides the demolding force are overcome, the service life of the horizontal male die is prolonged, and the maintenance cost is reduced.

Further, the utility model discloses an optimization scheme is:

the outer groove wall of the groove structure is conical.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a forging of an embodiment of the present invention;

fig. 3 is a schematic view of placing a blank according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of the upper female die closing in place according to the embodiment of the present invention;

FIG. 5 is a schematic diagram of the vertical perforation in place according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of horizontal perforation according to an embodiment of the present invention;

fig. 7 is a schematic drawing of the upper concave die demoulding in the embodiment of the utility model;

FIG. 8 is a schematic drawing of horizontal punch demolding in accordance with an embodiment of the present invention;

fig. 9 is a schematic view of an ejected forging of an embodiment of the present invention;

FIG. 10 is a schematic structural view of a horizontal male mold according to an embodiment of the present invention;

in the figure: a lower concave die 1; a left horizontal male die 2; 2-1 of a shaft head part; 2-2 parts of shaft shoulder; 2-3 of a groove structure; a blank 3; an upper concave die 4; an upper male die 5; a right horizontal male die 6; a lower top block 7; and 8, forging pieces.

Detailed Description

The present invention will be further described in detail with reference to the accompanying drawings and examples.

Referring to fig. 1, 2 and 3, the embodiment is a die demolding structure for a forging piece with a horizontal hole cavity, a lower female die 1 of the die is fixedly connected with a workbench backing plate through a T-shaped bolt, the lower female die 1 and the workbench backing plate are positioned through a square key, a vertical lower ejector block 7 is arranged in the lower female die 1, and the lower ejector block 7 is in clearance fit and is placed on the upper surface of the workbench backing plate. The upper female die 4 is matched with the lower female die 1, the upper female die 4 is connected with the ridge beam base plate through a T-shaped bolt, an upper male die 5 is vertically installed in the upper female die 4, and the upper male die 5 is used for punching a vertical hole of the forge piece 3.

A left horizontal male die 2 and a right horizontal male die 6 which have the same structure are symmetrically arranged between the lower female die 1 and the upper female die 4,

the opposite ends of the left horizontal male die 2 and the right horizontal male die 6 are respectively of a stepped shaft structure (shown in figure 10), the shaft head parts 2-1 of the left horizontal male die 2 and the right horizontal male die 6 are used for punching out horizontal holes of a forge piece, the shaft shoulders 2-2 of the left horizontal male die 2 and the right horizontal male die 6 are respectively provided with an inwards concave annular groove structure 2-3, the ring width of the groove structure 2-3 extends from outside to inside to the outer circumference of the shaft head part 2-1, and the diameter of the inner circle at the bottom of the groove structure 2-3 is equal to that of the shaft head part 2-1. The outer groove wall of the groove structure 2-3 is conical, and the section of the outer groove wall is an inclined plane. The shaft shoulders 2-2 of the left horizontal male die 2 and the right horizontal male die 6 adopt a groove structure 2-3 with inward-concave inclined surfaces, the outer end surface of a horizontal hole of a forge piece is embedded into the groove structure 2-3 during forging, the groove structure 2-3 provides demolding force required in the ascending process of the upper male die 5 and the upper female die 4 after forging, and the defects that the shaft head part 2-1 of the horizontal male die is bent and deformed and the shaft head part 2-1 generates cracks or even breaks at the joint of the shaft shoulders 2-2 and the like due to the fact that only the shaft head part 2-1 of the horizontal male die provides the demolding force are avoided, and further the service lives of the left horizontal male die 2 and the right horizontal male die 6 are prolonged.

The working process of the embodiment is as follows: a feeding mechanical arm clamps a blank 3 to be transferred and positioned to a specified position (shown in figure 3) of a cavity of a lower female die 1, the upper female die 4 moves downwards to a die assembly position along with a press frame beam and keeps certain die assembly pressure to complete die assembly (shown in figure 4), an upper male die 5 moves downwards to a program set position along with a vertical cylinder, punching of the upper male die 5 is finished (shown in figure 5), a left horizontal male die 2 and a right horizontal male die 6 move horizontally and oppositely along with a horizontal cylinder, pressure control is adopted according to program setting, and when the pressure reaches a set value, horizontal punching is finished (shown in figure 6). After forging is finished, the horizontal hydraulic cylinder connected with the left horizontal male die 2 and the right horizontal male die 6 unloads loads and keeps at a final punching position, and the forge piece 8 is ensured not to be adhered to the upper female die 4 in the subsequent die opening process; the upper male die 5 and the upper female die 4 successively move upwards along with the vertical cylinder and the press ridge beam, after being separated from the forge piece 8 (as shown in figure 7), the left horizontal male die 2 and the right horizontal male die 6 reversely move to the die opening position to be separated from the forge piece 8 (as shown in figure 8) under the action of the horizontal cylinder, and finally the lower ejector block 7 and the forge piece 8 are ejected upwards by the ejection cylinder to complete the demoulding of the forge piece 8 (as shown in figure 9). The utility model discloses showing and shortening the production beat, improving production efficiency, practicing thrift and forging the cost, simple structure easily operates and realizes, the cost of using manpower sparingly.

The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents made by using the contents of the specification and drawings are included in the scope of the present invention.

Claims

1. The utility model provides a mould demoulding structure with horizontal hole chamber forging, includes lower die, goes up the die, and the vertical upper male die of arranging in the die is equipped with the same left horizontal terrace die and the right horizontal terrace die of structure, its characterized in that between lower die and the last die to the symmetry: the opposite ends of the left horizontal male die and the right horizontal male die are respectively of a stepped shaft structure, the shaft head parts of the left horizontal male die and the right horizontal male die are used for punching out a horizontal hole of a forge piece, shaft shoulders of the left horizontal male die and the right horizontal male die are respectively provided with an annular groove structure, and the ring width of each groove structure extends to the outer circumference of the shaft head part from outside to inside.

2. The mold release structure for forgings with horizontal bore cavities of claim 1, wherein: the outer groove wall of the groove structure is conical.