JPS6239862Y2 - - Google Patents

Description

[Detailed description of the invention] This invention consists of an upper plate and a lower plate that are assembled movably in the vertical direction, and between the upper die of the press mold attached to the upper plate and the lower die attached to the lower plate. A die set is used to perform processing such as forming or perforating a workpiece corresponding to the upper and lower dies by strongly pressing the upper plate and lower plate between press machines with the workpiece sandwiched between the die sets. This design aims to quickly attach the upper and lower molds to the upper and lower plates, and to provide compatibility.

As shown in FIG. 1, the conventionally used die set has a guide hole 3 through which an upper plate 1 and a bush 2 attached thereto are passed, and a guide rod 5, which is set on a lower plate 4.
5 is inserted, and a spring 6 is fitted to the guide rod 5.The upper die 7 of the press mold is attached to the upper plate 1, and the lower plate 4 is inserted.
The lower die 8 is placed under the plunger of a press machine, and the upper plate 1 is strongly pressed through the receiving plate 20 attached to it, and the upper die 7 is lowered together with the upper plate 1, thereby creating a space between the upper and lower dies. It is used, for example, to drill holes in the inserted workpiece 9.

However, in the conventional die set, the mounting surface between the upper plate 1 and the upper mold 7 and the mounting surface between the lower plate 4 and the lower mold 8 were both flat, so the upper mold 7 and the lower mold 8
To attach the to each plate 1 and 4, after adjusting the position of each mold in each direction of 360 degrees on each mounting plane, fix each plate and each mold with bolts and drive a dowel pin. , to prevent the mold from moving during use. Therefore, attaching the molds to the upper and lower plates is difficult and requires skill, takes a lot of time, and the combination of die set and press mold is fixed, resulting in no compatibility. That is, if, for example, three sets of the same upper and lower molds are required due to the relationship between the durability of the upper and lower molds and the amount of work, it is not possible to replace and install the upper and lower molds on one die set. Three die sets were required because the two die sets were fixed.

The die set of this invention solves the above-mentioned inconveniences of conventional die sets, facilitates mold installation, and provides compatibility. A bolt that forms concave grooves (or convex grooves) in directions that intersect with each other, engages the convex grooves (or concave grooves) formed on each corresponding mold so that they can move in only one direction, and fixes each mold. A hole is formed to insert the.

Next, the die set of this invention will be explained with reference to the embodiments shown in FIG. 2 and below.

Insert the guide rod 5 set on the lower plate 4 into the guide hole 3 of the upper plate 1 and the bushing 2, and insert the upper and lower plates 1,
It is similar to the conventional die set that a spring 6 for returning the die set 4 is fitted.

A groove 10 parallel to the direction perpendicular to the plane of the paper in FIG. As shown in Figure 3 (view from arrow A in Figure 2 of the upper plate), the pitch is fixed at a constant pitch (the pitch does not have to be constant, but it is usually kept constant for convenience of construction and work), and the upper mold described later is A slightly larger diameter than the mounting screw 15,
That is, a plurality of slightly loose screw insertion holes 11 are bored.

On the surface of the lower plate 4 that faces the upper plate 1 and on which the lower die 8 is attached, a groove 12 parallel to the groove 10 is formed in a direction perpendicular to the groove 10, and the outer side of the groove is shown in FIG. As seen in the lower plate (FIG. 2B arrow view), a plurality of screw insertion holes 13 having a slightly larger diameter than the lower mold mounting screws 15 described later are bored at a constant pitch.

In this embodiment, there are three grooves 10 on the upper plate and three grooves 12 on the lower plate, but these numbers can be increased or decreased or distributed evenly depending on the design conditions. In addition, the screw insertion holes can also be provided inside each of the grooves as shown in FIG. 3, or outside the grooves as shown in FIG. The cross-sectional shapes of the grooves and protrusions are not limited to the rectangular shape shown in the drawings, but may be triangular or trapezoidal as long as they guide each mold so that it can move in only one direction with respect to the upper or lower plate.

Note that the hole 21 (FIG. 3) provided in the upper plate 1 is a hole for attaching the bush 2, and the hole 22 is provided in the upper plate 1.
This is a hole through which a restriction bolt (not shown) is inserted to prevent the lower plate 4 from being pushed by the spring 6 and separated. The head of the restriction bolt is caught in the counterbore portion 22a to prevent the upper plate 1 from coming off the restriction bolt. The lower part of the limit bolt is inserted into the screw hole 23 (fourth
(Fig.) and is connected to the lower plate 4. 24
(FIG. 3) is a screw hole into which a bolt is screwed for attachment to the receiving plate 20 which receives the downward pressure of the plunger and transmits it to the upper plate 1.

FIG. 5 shows an example in which a die set of another embodiment is used to punch a hole in a workpiece 9, and is configured so that two workpieces can be punched simultaneously.

In the apparatus shown in FIG. 5, the surface of the upper mold 7 that comes into contact with the upper plate 1 has a protrusion 14 that fits into the groove 10 of the upper plate.
is formed, and a screw hole into which a screw 15 is screwed is provided at the same pitch as the screw insertion hole 11.
The protrusions 14 of the upper mold 7 constructed in this manner are fitted into the grooves 10 of the upper plate 1, and the screws 15 are inserted through the slightly loose screw insertion holes 11 and screwed into the upper mold 7. 7 is attached to the upper plate 1.

Similarly, a protruding line 16 that fits into the groove 12 is formed on the surface of the lower mold 8 facing the lower plate 4, and this protruding line 1
6 is fitted into the groove 12 provided in the lower plate 4, and the screw 15 is inserted through the screw insertion hole 13, which is a little loose, and the mounting position is adjusted within the range of loose fitting between the two and fixed. In this way, the upper die 7 and the lower die 8 are attached to the upper plate 1 and the lower plate 4, respectively, and this die set is fixed between the plungers of the press machine, and the workpiece 9 is put between the two dies and the plunger When the upper plate 1 is strongly pressed down, a hole 17 is formed in the workpiece 9 by being sandwiched between the upper die 7 and the lower die 8 that descend together with the upper plate 1. When the reduction by the plunger is completed, the upper plate 1 and the upper die 7 are returned to their positions due to the spring 6. Reference numeral 18 designates a stopper attached to the lower plate 4 for positioning the workpiece 9 in the lateral direction as shown in FIG. .

In the die set of this invention constructed and operated as described above, when attaching the upper die 7 to the upper plate 1, it is only necessary to consider the position of the upper die 7 in one direction along the groove 10; The attachment of the mold 8 to the lower plate 4 only needs to be considered in one direction along the groove 12 of the lower plate. And these double concave grooves 10, 12
Since these are perpendicular to each other, the relative positions of the upper and lower molds can be accurately determined and attached to the upper and lower plates 1 and 4 by adjusting only one direction of these two molds. The die set configured as described above has screw insertion holes 11 drilled in the upper plate 1 and lower plate 4 used to attach the upper mold 7 and lower mold 8, and screws provided in the upper mold 7 and lower mold 8. The holes are formed so that the upper and lower molds can be attached to the upper plate 1 and the lower plate 4 at almost appropriate positions, so after temporarily tightening the screws 15, the positions of the upper and lower molds can be slightly adjusted, that is, finely adjusted. This will allow for accurate mold installation.

In the die set of the present invention, the screw insertion hole 1
1 is made slightly looser than the screw 15, the positions of the upper and lower molds 7 and 8 can be finely adjusted within the range in which the screw 15 can move laterally within the screw insertion hole 11. During this fine adjustment, it is only necessary to slightly move the upper and lower dies in different linear directions along the grooves 10 and 12 of the upper and lower plates, and there is no need to consider adjustment in the rotational direction, making the adjustment work extremely easy. It can be done easily and efficiently.

After this fine adjustment is completed, by tightening the screw 15, the upper and lower dies 7 and 8 are joined to the upper and lower plates 1 and 4 with sufficient strength to withstand the subsequent press operation. As is clear from the above action, the groove 10,
The intersection angle of 12 does not have to be a right angle.

As mentioned above, the die set of this invention has the upper plate 1
The mounting positions of the upper mold 7, the lower plate 4, and the lower mold 8 can be adjusted by moving only in one direction along the grooves 10 and 12 (or a protruding strip in place of these), which is easier than before. The upper and lower molds are respectively
Compared to a device that can move in all directions of 360 degrees, it is much easier to adjust the mounting position, and it has the following effects.

(1) The upper plate 1 and the upper die 7, and the lower plate 4 and the lower die 8 are attached by engaging linear grooves or protrusions in different directions on the upper and lower sides, so each die only needs to be slightly moved in one direction. The installation position can be adjusted using the , so even non-experts can easily work on it.

(2) The above work can be done easily and in a short time.

(3) Since the upper and lower plates and the upper and lower molds fit together through concave grooves and convex stripes, the connection strength is high, and only a few screws (15
The connection is made sufficiently strong by the fastening.

(4) There is no need to fixedly connect one die set to one set of upper and lower molds, for example, three sets of upper and lower molds can be combined into one die set.
It can be installed and used by replacing it with different die sets in sequence. The cost of die set production is therefore reduced.

(5) Since the cost of the press mold including the die set is reduced, the amount of work is reduced, so press processing can be used even in cases where the cost of the mold would have been too high and press processing could not be used in the past. Profitable.

(6) Since the die set can have a standard structure, there is no need to design each press die as required in the past.

(7) A single die set can be used for multiple purposes by replacing and attaching various press dies.

[Brief explanation of the drawing]

Figure 1 is a side view showing a conventional die set, Figure 2 is a side view showing a conventional die set.
The following figures show the die set of the present invention, Fig. 2 is a side view of one embodiment, Fig. 3 is a bottom view of the upper plate seen in the direction of arrow A in Fig. 2, and Fig. 4 is B in Fig. 2. FIG. 5 is a top view of the lower plate viewed in the direction of the arrow, and a side view showing a state in which a workpiece is drilled according to another embodiment. 1: Upper plate, 2: Button, 3: Guide hole, 4: Lower plate, 5: Guide rod, 6: Spring, 7: Upper die, 8: Lower die, 9: Workpiece, 10: Groove, 11 : Screw insertion hole, 12: Concave groove, 13: Screw insertion hole, 14: Convex line, 15: Screw, 16: Convex line, 17: Hole, 18,
19: stopper, 20: receiving plate, 21, 22: hole,
22a: counterbore, 23, 24: screw holes.

Claims (1)

[Scope of utility model registration request] Forming concave grooves 10, 12 or protrusions in mutually intersecting directions on the lower surface of the upper plate 1 and the upper surface of the lower plate 4,
Projections 14, 16 or grooves that fit into the grooves 10, 12 or projections are formed on the surfaces of the upper mold 7, lower mold 8 that contact the upper plate 1 or the lower plate 4, and the upper mold 7, These are screwed onto the lower mold 8 to form the upper plate 1 and the lower plate 4, respectively.
A die set in which screw insertion holes 11 and 13 having a slightly larger diameter than the screw 15 are provided in the upper plate 1 and the lower plate 4, into which the screw 15 to be fixed is inserted.