CN110722082A

CN110722082A - Split forging die and die changing method

Info

Publication number: CN110722082A
Application number: CN201910905823.1A
Authority: CN
Inventors: 汤大锋; 沈引良; 黄锟; 俞杰; 王文正; 陈培中
Original assignee: Seven Feng Jinggong Science And Technology Co Ltd
Current assignee: Seven Feng Jinggong Science And Technology Co Ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-01-24

Abstract

The invention discloses a split forging die and a die changing method, wherein the split forging die comprises a die base, a fastening piece, a forging die and a base plate, the die base is fixedly connected with a die box through threads, the fastening piece is fixedly connected with the die box through threads, and the forging die is fixed in the die box, so that the forging die with convenient and rapid product changing is formed; when the die is replaced, the fastening piece is firstly loosened, the fastening piece is separated from the forging die, so that the forging die is taken out of the die accommodating cavity, then the backing plate is placed at the top end of the forging die, the forging die is placed in the die accommodating cavity, and finally the forging die is locked from four sides of the die box by the fastening piece. The invention is convenient and fast to change the model and improves the model changing efficiency.

Description

Split forging die and die changing method

Technical Field

The invention relates to a forging die and a die changing method.

Background

Traditional forging and pressing mould is integral, when the product of production different models, need all tear down a whole set of mould, just can change the mould, and is comparatively troublesome loaded down with trivial details, and often dismouting can lead to the impaired increase of corresponding spare part. Particularly for products produced in medium and small batches, the production period of the products with the same model is not long often, and the model is changed frequently, so that a large amount of time is wasted on the die change, the progress of product production is influenced, the cost of the die is high, the die can not adapt to the market well, and the requirement of diversification of customers is met.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a split forging die and a die changing method.

In order to achieve the above object, the present invention adopts a technical solution of a split forging and pressing die, comprising:

a mold base;

the mould box is detachably and fixedly connected with the mould base, and a mould accommodating cavity and a horizontal fixing hole are formed in the mould box;

the fastening piece is installed in the horizontal fixing hole;

the forging die is arranged in the die accommodating cavity, and the fastening piece is in abutting fit with the forging die; and

and the backing plate is arranged in the die box and positioned between the die base and the forging die.

In an embodiment of the present invention, an outer surface of the abutting engagement portion of the forging die and the fastening member is a tapered surface.

In an embodiment of the invention, the horizontal fixing hole is a through hole with threads. The tightening piece is in threaded connection with the mold box.

In an embodiment of the present invention, the fastening member is a set screw, and an end surface of one end of the set screw, which is abutted to the forging die, is an arc-shaped end surface.

In an embodiment of the present invention, the number of the fastening screws is several, and the fastening screws are respectively installed around the mold box.

In an embodiment of the present invention, the mold base is a plate-shaped structure, and the mold box and the mold base are attached together.

In an embodiment of the invention, the mold accommodating cavity is located in the middle of the mold box, the mold accommodating cavity is square, the shape of the backing plate is matched with the mold accommodating cavity, and the hardness of the backing plate is smaller than that of the mold base.

In an embodiment of the present invention, the forging die has a die cavity.

In one embodiment of the invention, two die bases are provided, namely an upper die base and a lower die base, the upper die base is detachably mounted on the upper workbench, and the lower die base is detachably mounted on the lower workbench; the two mold boxes are respectively an upper mold box and a lower mold box, the upper mold box is detachably mounted on the upper workbench, and the lower mold box is detachably mounted on the lower workbench; the upper die box and the lower die box are both provided with die accommodating cavities and horizontal fixing holes; the fastening piece is installed in the horizontal fixing hole; the forging and pressing die is provided with two upper dies and two lower dies, the upper dies are installed in the die containing cavities of the upper die box, the lower dies are installed in the die containing cavities of the lower die box, the upper dies are provided with upper die cavities, the lower dies are provided with lower die cavities, and the upper die cavities are matched with the lower die cavities.

A convenient die change method comprises the steps of loosening the fastening piece, separating the fastening piece from the forging die, taking the forging die out of the die accommodating cavity, placing a backing plate on the top end of the forging die, placing the forging die in the die accommodating cavity, and locking the forging die from four sides of the die box by the fastening piece.

The technical scheme has the following beneficial effects:

through the mould base, the die box, tight setting piece, the cooperation of being connected between forging die and the backing plate, split type forging and pressing mould has been constituteed, only need to fix die box and mould base, it fixes the forging die in the mould holds the chamber through tight setting piece, special design has been carried out to the shape of forging die and tight setting piece, make tight setting piece can firmly fix the forging die in the mould holds the chamber, further through the screw to the mould base fixed to the workstation can, this forging and pressing mould is convenient for change the mould, especially to the product of well small batch production, it is convenient to remodel, the efficiency of remodeling is improved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic partial structure diagram of an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an upper mold according to an embodiment of the present invention.

Description of reference numerals: the die comprises an upper die base 11, a lower die base 12, an upper workbench 101, a lower workbench 102, an upper die box 21, a lower die box 22, screws 10, mounting holes 20, a die accommodating cavity 30, horizontal fixing holes 31, a conical surface 40, an upper die 41, a lower die 42, a set screw 50, a backing plate 6, an upper die cavity 410 and a lower die cavity 420.

Detailed Description

The invention will now be further described with reference to the following examples and figures 1 to 3.

The utility model provides a split type forging and pressing mould, as shown in figure 1, includes mould base, tightly decides piece, forging and pressing mould and backing plate, thread fixed connection between mould base and the die box, tightly decide the piece with die box thread fixed connection, the forging and pressing mould is fixed inside the die box to constitute the product and trade type convenient and fast's forging and pressing mould. In this embodiment, there are two die bases, each of which is a plate-shaped structure and includes an upper die base 11 and a lower die base 12, the upper die base 11 is detachably mounted on an upper table 101 of the forging apparatus through a screw 10, and the lower die base 12 is also detachably mounted on a lower table 102 of the forging apparatus through a screw 10.

The number of the mold boxes is two, namely an upper mold box 21 and a lower mold box 22, the upper mold box 21 is detachably mounted on the upper mold base 11 through screws 10, and the lower mold box 22 is detachably mounted on the lower mold base 12 through screws 10. The upper mold box 21 and the upper mold base 11 are tightly attached together, and the lower mold box 22 and the lower mold base 12 are tightly attached together. The upper mold box 21 and the lower mold box 22 are provided with mounting holes 20, and the screws 10 are vertically screwed on the upper mold base 11 and the lower mold base 12 through the mounting holes 20 respectively.

The upper mold box 21 and the lower mold box 22 are both provided with a mold accommodating cavity 30 and a horizontal fixing hole 31; the upper and

lower cases

21 and 22 have forging dies, i.e., upper and

lower dies

41 and 42, respectively, fixed in the die receiving holes 30, respectively, and the upper and

lower dies

41 and 42 are fixed by fasteners installed in the horizontal fixing holes 31. In this embodiment, the fastening member is a fastening screw 50, and the horizontal fixing hole 31 is a through hole with threads. The number of the set screws 50 is six in this embodiment, and as shown in fig. 2, the set screws are respectively installed at the left and right sides and the front and rear sides of the upper die box 21 and the lower die box 22, and the forging die is limited in the die accommodating cavity 30 from the periphery of the forging die. The outer surface of the abutting and matching part of the forging die and the fastening piece is a conical surface 40, as shown in fig. 3, that is, the outer surfaces of the upper die 41 and the lower die 42 are both provided with the conical surface 40, and the end surface of one end of the fastening screw 50 abutting the forging die is an arc-shaped end surface, in this embodiment, the end spherical surface of the fastening screw is a spherical surface, so that the end spherical surface of the fastening screw can better contact with the conical surface 40, the fastening screw can more firmly abut against the conical surfaces 40 of the upper die 41 and the lower die 42, and the forging die can be firmly fixed in the die accommodating cavity 30 under the action of impact force.

The die accommodating cavity 30 is located between the upper die box 21 and the lower die box 22 and is a directional open slot, the shape of the backing plate 6 is matched with that of the die accommodating cavity 30, and the backing plate 6 is installed in the die accommodating cavity 30. The pad 6 is provided between the upper die 41 and the upper die base 11, and the pad 6 is also provided between the lower die 42 and the lower die base 12. The hardness of the backing plate 6 is smaller than that of the upper die base 11 and the lower die base 12, so that the upper die base 11 and the lower die base 12 can be effectively protected, and the deformation of the upper die base 11 and the lower die base 12 under the action of impact force is reduced. The upper die 41 is provided with an upper die cavity 410, the lower die 42 is provided with a lower die cavity 420, the upper die cavity 410 is matched with the lower die cavity 420, and the upper die 41 and the lower die 42 are forged to extrude a product during forging.

When replacing a mold, for example, replacing the upper mold 41, the set screw 50 is loosened to separate the spherical end portion of the set screw 50 from the upper mold 41, so that the upper mold 41 is taken out of the mold accommodating chamber 30, then the pad 6 is placed on the top end of the upper mold 41 of another product type, and then they are placed together in the mold accommodating chamber 30, and finally the set screw 50 is tightened in the horizontal fixing hole 31 of the upper mold box 21 to lock the upper mold 41 from four sides of the upper mold box 21. The operation mode for replacing the lower die 42 is the same as the above-described step for replacing the upper die 41.

The hot forging die is developed to meet the requirements of medium and small batch production in actual production, the die is very convenient to change the die, the die changing efficiency is high, only the set screw needs to be loosened, the upper die and the lower die are taken down and respectively replaced by another pair of upper and lower dies, and the die changing can be completed through simple die matching. The invention can ensure the service life of the die and the processing quality of products, solves the problem of troublesome shape change in production, meets the requirement of product diversity of customers, does not need to replace the whole die when replacing the product die, saves the die changing time and reduces the die cost.

The above-described embodiments are intended to illustrate rather than to limit the invention, and any changes and alterations made without inventive step within the spirit and scope of the claims are intended to fall within the scope of the invention.

Claims

1. The utility model provides a split type forging mould which characterized in that includes:

a mold base;

the fastening piece is installed in the horizontal fixing hole;

2. The split forging die of claim 1, wherein the outer surface of the forging die where the forging die abuts against the tightening member is a tapered surface.

3. The split forging die of claim 1, wherein the horizontal fixing hole is a threaded through hole.

4. The split forging die of claim 1, wherein the tightening piece is a set screw, and an end surface of an end of the set screw abutting against the forging die is an arc-shaped end surface.

5. The split forging and pressing die of claim 4, wherein the fastening screws are arranged on the periphery of the die box respectively.

6. The split forging die of claim 1, wherein the die base is a plate-like structure, and the die case is attached to the die base.

7. The split forging and pressing die of claim 1, wherein the die accommodating cavity is located in the middle of the die box, the die accommodating cavity is square, the backing plate is matched with the die accommodating cavity in shape, and the hardness of the backing plate is smaller than that of the die base.

8. The split forging and pressing die of any one of claims 1 to 7, wherein the forging die is provided with a die cavity.

9. The split forging die of claim 8, wherein the number of the die bases is two, namely an upper die base and a lower die base, the upper die base is detachably mounted on the upper workbench, and the lower die base is detachably mounted on the lower workbench; the two mold boxes are respectively an upper mold box and a lower mold box, the upper mold box is detachably mounted on the upper mold base, and the lower mold box is detachably mounted on the lower mold base; the upper die box and the lower die box are both provided with die accommodating cavities and horizontal fixing holes; the fastening piece is installed in the horizontal fixing hole; the forging and pressing die is provided with two upper dies and two lower dies, the upper dies are installed in the die containing cavities of the upper die box, the lower dies are installed in the die containing cavities of the lower die box, the upper dies are provided with upper die cavities, the lower dies are provided with lower die cavities, and the upper die cavities are matched with the lower die cavities.

10. A convenient die change method is characterized in that the fastening piece is firstly loosened, the fastening piece is separated from the forging die, the forging die is taken out of the die accommodating cavity, then a backing plate is placed at the top end of the forging die, the forging die is placed in the die accommodating cavity, and finally the forging die is locked from four sides of the die box by the fastening piece.