JPH091276A - Variable size form jig - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a form jig capable of forming a forged product having convex portions of various sizes. A mold jig for forming a forged product having a convex portion by arbitrarily changing the dimension of the convex portion.
Is a base plate 2, a pair of fixed bases 3 and 4 fixed in parallel on the base plate at a predetermined interval, and a pair of first bases movably arranged between the bases. 1 adjustment stand 5, 6
With Locking convex portions are provided on the lower surfaces of the first adjusting bases 5 and 6, and a plurality of locking concave portions that lock with the locking convex portions are provided on the upper surface of the substrate 2 in the moving direction of the first adjusting base.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold jig for forming a forged product having a convex portion by arbitrarily changing the dimension of the convex portion.

[0002]

2. Description of the Related Art Conventionally, when a forged product 51 having a convex portion 50 on its surface is formed as shown in FIG. 4, a form jig 55 having a concave portion 53 for forming the convex portion on its upper surface is used. Was there. That is, a forged product having a convex portion 50 with this form jig 55.
To form 51, the recess 53 is filled with the product material, the product material that does not fit into the recess 53 is tapped to be stretched to the same thickness, and gas cutting is performed along the broken line 57.

[0003]

By the way, in the above-mentioned form jig 55, since the size of the concave portion 53 is fixed, it can be used only for the same product, and a forged product having a convex portion of various sizes. There was a problem that it could not be applied to the molding of.

Therefore, the present invention provides a form jig which can solve the above-mentioned conventional problems and can also be applied to the molding of forged products having convex portions of various sizes. With the goal.

[0005]

In order to achieve the above object, a form jig according to the invention of claim 1 is a substrate and a pair of fixing bases fixed in parallel on the substrate at a predetermined interval. And a pair of first adjustment bases arranged between the fixed bases so as to be movable in a direction orthogonal to the fixed bases. Locking portions are provided on the lower surface of the first adjusting base, and a plurality of locking portions that lock with the locking portions are provided on the upper surface of the substrate in the moving direction of the first adjusting base. According to a second aspect of the present invention, in the first aspect of the present invention, the second adjustment base is provided between the first adjustment bases so as to be in contact with and fitted to the fixed base.

[0006]

In order to form a forged product having a convex portion, a pair of first adjusting bases are moved in opposite directions according to the size of the convex portion, and the engaging portion on the lower surface is engaged with the upper surface of the substrate. Lock it in the stop. As a result, a concave portion corresponding to the above size is formed in the space between the first adjusting base and the fixed base, and the convex portion can be molded by the concave portion.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing a variable size form jig according to an embodiment of the present invention, FIG. 2 is a plan view of a substrate and a fixing base, FIG. 3 shows a first adjusting base, and FIG. The front view, (B) is a side view,
(C) is a bottom view. Reference numeral 1 denotes a metal-made variable-dimension form jig which is formed in a square shape as a whole. This form jig 1 is a substrate 2
A pair of fixed bases 3 and 4 fixed in parallel at a predetermined interval on the substrate, and arranged between the fixed bases so as to be movable in a direction orthogonal to the fixed bases as indicated by arrows in FIG. It also has a pair of first adjusting tables 5 and 6. The fixing bases 3 and 4 fixed to the substrate 2 may be integrally formed on the substrate 2 in advance, or may be separately formed and then fixed. Both the fixing bases 3 and 4 and the first adjusting bases 5 and 6 have a rectangular block shape, and when the first adjusting bases 5 and 6 are fitted between the fixing bases 3 and 4 as shown in FIG. , 6 are in sliding contact with the inner surfaces of the fixed bases 3, 4 which face each other, and the lower surfaces of the bases 1 and 6.
Of the fixed bases 3 and 4 so that the upper surfaces thereof are substantially flush with the upper surfaces of the fixed bases 3 and 4.

As shown in FIG. 2, a plurality of locking recesses 7 and 8 are provided on the upper surface of the substrate 2 in the moving direction of the first adjusting bases 5 and 6, respectively, at different intervals and from the fixing bases 3 and 4. A plurality of them are provided at equal intervals in the direction. On the lower surface of the first adjusting bases 5 and 6, as shown in FIG. 3, one of the first adjusting bases 6 is provided with a locking projection 11 which is fitted into the locking recess 8 and locked. The lower surface of the first adjusting table 5 is also provided with a similar locking protrusion that fits into the locking recess 7 and locks. The first adjustment bases 5 and 6 are positioned and arranged by fitting and locking these locking projections in arbitrary locking recesses provided on the substrate 2 so that the intervals in the opposite directions can be adjusted. A concave portion 13 for forming a convex portion having an arbitrary size can be formed between the fixed bases 3 and 4.

The opposite side surfaces of the first adjusting tables 5 and 6 are shown in FIG.
As shown in (B) one of the first adjustment bases 6, it is formed on an inclined surface 14 inclined at a predetermined angle θ with respect to the perpendicular. This angle θ is 5 ° in this embodiment.

Since the forged product having the convex portions is formed, the first adjusting bases 5 and 6 fitted between the fixing bases 3 and 4 are opposed to each other according to the size of the convex portions. And the locking projections 11 and the locking projections (not shown) on the lower surface are locked to the locking recesses 7 and 8 of the substrate 2 for positioning.
As a result, a recess 13 corresponding to the dimension is formed in the space between the first adjusting table 5, 6 and the fixing table 3, 4, and the forging material is put into the recess and tapped to stretch as in the conventional case. This makes it possible to form a forged product having a convex portion. In FIG. 2, X is the maximum width of the concave portion 13, and Y is the concave portion.
Indicates a minimum width of 13. When it is desired to adjust the width between the fixed bases 3 and 4 when forming the concave portion 13, a second adjustment base 15 as shown in FIG. 1 is brought into contact with the fixed base 3 between the first adjustment bases 5 and 6. It may be used by fitting. As a result, the size of the concave portion 13 can be adjusted not only in the direction in which the first adjustment bases 5 and 6 are present but also in the direction in which the fixed bases 3 and 4 are present, and it is possible to form convex portions of various sizes. be able to. Although one second adjusting base 15 is used in this embodiment, a plurality of second adjusting bases 15 may be used. Moreover, in this case, the first adjustment table 5 of the recess 13 is
The size of the recess 13 can be more precisely formed by preparing an arbitrary number of second adjusting bases having a length matching the adjustment dimension between the six and second adjusting bases having different thicknesses.

It is needless to say that the form jig 1 of this embodiment is merely a preferable example, and that it is possible to appropriately modify the design change in detail. Further, the locking projections 11 provided on the first adjustment bases 5 and 6 and the locking recesses 7 and 8 provided on the substrate 2 have an opposite relationship, that is, the locking recesses 7 and 8 are provided on the first adjustment bases 5 and 6. Alternatively, the locking protrusion 11 may be provided on the substrate 2.

[0012]

Since the invention of claim 1 is constructed as described above, it can be applied to the molding of forged products having convex portions of various sizes, which cannot be done conventionally. Moreover, it is easy to manufacture and easy to handle. The invention of claim 2 has an excellent effect that the size of the concave portion can be adjusted also in the direction in which the fixing base is present, and the convex portion having various sizes can be formed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a variable dimension form jig according to an embodiment of the present invention.

FIG. 2 is a plan view of a substrate and a fixing base.

3A and 3B show a first adjusting table, FIG. 3A is a front view thereof, FIG. 3B is a side view, and FIG.

FIG. 4 is a perspective view showing a conventional mold jig and the like.

[Explanation of symbols]

 1 Dimension variable form jig 2 Board 3, 4 Fixing stand 5, 6 First adjusting stand 7, 8 Locking recess 11 Locking projection 13 Recess 15 Second adjusting stand

Claims (2)

[Claims] 1. A mold jig for forming a forged product having a convex portion by arbitrarily changing the dimension of the convex portion, the jig being fixed to the substrate in parallel at a predetermined interval on the substrate. A pair of fixed bases and a pair of first adjustment bases movably arranged between the fixed bases in a direction orthogonal to the fixed bases are provided, and a locking portion is provided on a lower surface of the first adjustment bases. A variable dimension form jig, wherein a plurality of locking portions that lock with the locking portions are provided on the upper surface of the substrate in the moving direction of the first adjusting table. 2. The variable size mold jig according to claim 1, wherein the second adjusting table is provided between both the first adjusting tables so as to be fitted in contact with the fixed table.