JPH02235529A - Variable die device - Google Patents

Abstract

PURPOSE:To form the irregularity of prescribed shape by providing a hollow cylindrical body fitted on the outer periphery of a core body and arranged in projectable to a core body and a means fixing at least the one of the core body and the hollow cylindrical body in a projecting state. CONSTITUTION:A core body 16a formed into the state extending along one direction and hollow cylindrical bodies 16b, 16c, 16d which are fitted on the outer periphery of the core body and are projectable relatively in one direction to the core body 16a are provided. At least one of the abovementioned core body and the hollow cylindrical body is made into projecting state and the projecting state is fixed. Thus the various shapes of die for the material to be worked W can be dealt with one variable die device and the forming cost of die can be reduced and the working time can be shortened. And, in the same way, a material can be punched so as to have opening of prescribed size by projecting one side of a 1st and a 2nd punch members and fixing with the fixing means.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a variable molding device for molding to have a recess of a predetermined shape, and a variable molding device for punching to have an opening of a predetermined size. Regarding.

[Prior Art] Conventionally, for example, when drawing a flat plate as the workpiece e to create a workpiece f having a concave portion as shown in FIG. 5, the workpiece f as shown in FIG. , is configured to use a mold device having a mold processed into the required mold shape. Here, in the figure, the symbol a indicates the upper mold, the symbol b the lower mold, the symbol C the die set, and the symbol d the stripper plate. [Problems to be Solved by the Invention] The conventional mold device configured as described above must be provided with a molding upper mold and a molding lower mold according to the mold shape of the workpiece. It has been pointed out that when there are many types of molds, the processing costs for the molds are high and the processing time is long.

In particular, in an environment where product production periods have become shorter in recent years and new product development periods have to be shortened accordingly, the former can lead to higher product costs, while the latter can lead to slower start-up of new product production. This could lead to a situation where you will not be able to make it in time.

This invention was made in view of the above-mentioned problems, and an object of the invention is to provide a variable type device that is inexpensive and can shorten processing time.

[Means for Solving the Problems] In order to solve the above-mentioned problems and achieve the purpose, a variable mold device according to a first aspect of the present invention is a variable mold device for forming a recessed portion of a predetermined shape. a core body formed to extend along one direction; and a core body fitted around the outer periphery of the core body and disposed so as to be able to protrude along the one direction relative to the core body. The present invention is characterized by comprising at least one hollow cylindrical body, and a fixing means for fixing the protruding state of at least one of the reciprocating and retractable hollow cylindrical bodies in the protruding state.

Further, a variable type device according to a second aspect of the present invention is a variable type device for punching an opening having a predetermined size, and the first punch member is formed to extend in one direction. and at least one hollow cylindrical first member fitted around the outer periphery of the first punch member and disposed so as to be able to protrude along the one direction relative to the first punch member. The present invention is characterized by comprising two punch members, and a fixing means for fixing the protruding state of at least one of the first and second punch members in the protruding state.

[Function] In the variable type device configured as above, at least one of the core body and the hollow cylinder body, depending on the shape of the recess of the predetermined shape to be processed or the size of the opening to be punched Alternatively, the mold shape is defined by causing at least one of the first and second punch members to protrude and fixing the protruding state using a fixing means. In this way, it becomes possible to adapt to various mold shapes using one variable mold device, thereby reducing mold forming costs and shortening the machining time for machining the mold.

[Embodiment] The configuration of an embodiment of the variable mold device according to the present invention will be described in detail below with reference to the accompanying drawings when applied to a mold device.

This forming mold apparatus 10 is an apparatus for drawing a metal plate, and as shown in FIG.
It is equipped with 4. This forming die apparatus 10 is configured to draw a workpiece indicated by the symbol W from a flat metal plate so that a portion thereof has a deep drawing part. Here, in this embodiment, the drawn shape is a large-diameter circular first recess W formed directly on the surface of the metal plate, as shown in the workpiece W shown in the figure. First recess W1
It is set to have a small-diameter circular second recess W2 that is further recessed from the center of the recess W2. That is, the shape of the recess that can be formed in this embodiment is limited to concentric circles.

On the other hand, the upper die 12 includes a piece member l6 that is divided into a plurality of pieces, and this piece member 16 includes a core body 16a that has a cylindrical shape with a bottom and extends in the vertical direction in the figure, and an outer periphery of this core body 16a. It is constructed concentrically from a plurality of (three in this embodiment) hollow cylinders 16b, 16c, and 16d that are sequentially fitted into the cylinder. Here, this core body 16a and a plurality of hollow cylinder bodies 16
b. 16c. 16d are configured such that adjacent ones can slide against each other and protrude downward.

In this embodiment, the corresponding core body 16a and the first hollow body 1 are used to define the second recess W2.
6b is integrally projected downward, and the remaining hollow cylinders 16c and 16d are set so as to directly define the first recess W1. In this state that the core body 16a and the first hollow cylindrical bodies 16b are protruded, the upper die fixed guide 18 allows the core body 16a and the plurality of hollow cylinder bodies 1 to
6b, 16c, and 16d are tightened as a whole to fix the protruding shape shown in the figure.

Similarly to the upper mold 12, the lower mold 14 also includes a piece member 20 that is divided into a plurality of pieces, and this piece member 20 is formed in a cylindrical shape with a closed top surface and extends along the vertical direction. A core body 20a, and a plurality of (four in this embodiment) hollow cylindrical bodies 20b, which are sequentially fitted around the outer periphery of the core body 20a.
20c, 20d, and 20e are arranged concentrically. These core body 20a and a plurality of hollow cylinder bodies 20b. 20
c, 20d, and 20e are configured such that adjacent ones can slide against each other and protrude downward. In this embodiment, the hollow cylindrical body 20e located at the outermost periphery is attached as a base end portion having a wider upper surface than the piece member 16 of the upper mold 12.

In addition, these piece members 20 are in a partially protruded state as shown in the figure, by the lower mold fixing guide 22,
These bridge members 20 are tightened as a whole and are set to be fixed in the illustrated protruding shape.

Note that these bridge members 16 and 20 are connected to the corresponding fixed guide 1.
Although not shown, the bridge member 1 can be tightened by 8.22 and its protruding shape can be fixed.
A slit of a predetermined length is formed along the axial direction so that the slit 6 opens at the upper end, and the bridge member 20 opens at the lower end. Since the upper mold 12 and the lower mold 14 are configured in this way, in this embodiment, the concentric two-stage recess W
Although it is set to draw a concave shape having r and Wx, it is now possible to change and set the concentric concave shape to any desired shape, and this pair of upper die 12 and lower die 14 can be used to draw a variety of shapes. It becomes possible to correspond to the shape.

As a result, in this embodiment, molding costs are reduced, molding time is shortened, and a situation in which molding cannot be completed in time for product manufacture is reliably avoided.゛・The upper mold 12 and lower mold 14 configured in this manner are attached to a press die set 24 shown in FIG. 2 to be specifically used for a molding operation.

That is, this breath die set 24 includes a die set 26 and a stripper plate 28.

That is, when drawing with this press die set 24, the flat metal plate W is inserted into the upper die 12 and the lower die 14.
and is fixed onto the upper surface of the lower mold 14 via a fixing means (not shown). Then, by applying a downward load to the upper die l2 by a drive source (not shown),
The upper die l2 is processed, and the metal plate W as the workpiece is drawn. Note that FIG. 2 shows the state at the time when the drawing process is completed.

It goes without saying that this invention is not limited to the configuration of the embodiments described above, and can be modified in various ways without departing from the gist of the invention.

For example, in the above-mentioned embodiment, the molding device 10 is described as being used as a molding device for drawing, but the present invention is not limited to such application, and can be applied to a punching molding device. The same applies to In this case, each piece member 16.20 is a punch member 16', 20 having a similar shape and whose end peripheral edge functions as a cutting edge.
As shown in FIG. 3, for example, when punching a metal plate W as a workpiece with a circular opening W3, the upper mold 12 has a punch member 16' corresponding to this punching shape. The lower side 14 is partially protruded downward.
In this case, a punch member 20' corresponding to the protruding punch member 16' is set to protrude downward.
In this way, this die device can also be used as a punching die that can accommodate a variety of sizes. Further, in the above-mentioned embodiment, the core body 16a constituting each piece 16.20. 20a and a plurality of hollow cylinders 16b
．． 16c. 16d; 20b, 20c, 20d, and 20e were each described as forming concentric circles, but
The present invention is not limited to such a configuration; for example, as shown in another embodiment in FIG. You may also do so.

[Effects of the Invention] As detailed above, the variable molding device according to the first aspect of the present invention is a variable molding device for molding to have a recessed portion of a predetermined shape, which at least one hollow cylindrical body fitted around the outer periphery of the core body and arranged to protrude along the one direction relative to the core body; It is characterized by comprising a fixing means for fixing the protruding state of at least one of the reciprocating and the hollow space body in the protruding state.

Further, a variable type device according to a second aspect of the present invention is a variable type device for punching an opening having a predetermined size, and the first punch member is formed to extend in one direction. and at least one hollow cylindrical first member fitted around the outer periphery of the first punch member and disposed so as to be able to protrude along the one direction relative to the first punch member. The present invention is characterized by comprising two punch members, and a fixing means for fixing the protruding state of at least one of the first and second punch members in the protruding state.

Therefore, according to the present invention, a variable type device is provided which is inexpensive and can shorten processing time.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing the configuration of an embodiment of the variable type device according to the present invention; FIG. 2 is a front view schematically showing the configuration of a press die set to which the variable type device shown in FIG. 1 is attached. Cross-sectional view: Fig. 3 is an exploded perspective view showing the state in which the variable type device shown in Fig. 1 is used as a punching die; Fig. 4 schematically shows the configuration of another embodiment of the variable type device according to the present invention. Perspective view; Figure 5 is a perspective view showing the drawing shape of a conventional workpiece;
FIG. 6 is a front sectional view schematically showing the configuration of a conventional workpiece squeezing device. In the figure, 10... mold device, 12... upper mold, 14...
...Lower mold, 16... Upper mold piece member, 18... Fixed guide for upper mold, 20... Lower mold piece member, 22... Fixed guide for lower mold, 24... Brace Die set, 26...
・Die set, 28...Stritva plate, 30a
; 30b... It is a columnar body. Patent applicant Canon Inc. Figure 2 Figure 4

Claims (2)

[Claims] (1) A variable type device for forming a concave portion of a predetermined shape, which includes a core body formed to extend in one direction, and a core body that is fitted around the outer periphery of the core body and At least one disposed so as to be able to protrude along the one direction relative to the core body.
A variable device comprising: a hollow cylindrical body of a book; and a fixing means for fixing the protruding state of at least one of the core body and the hollow cylindrical body in a protruding state. (2) A variable-type device for punching an opening having a predetermined size, which includes a first punch member formed to extend in one direction, and an outer circumference of the first punch member. at least one hollow cylindrical second punch member fitted therein and disposed so as to protrude along the one direction relative to the first punch member; and the first and second punch members. 1. A variable device comprising: a fixing means for fixing at least one of the two punch members in the protruding state in a protruding state.