KR102538966B1 - press forming apparatus having burr cutting unit - Google Patents

Abstract

The present invention relates to a press forming apparatus which performs shear processing on both ends of a material panel while performing press processing on the material panel, the press forming apparatus comprising a lower base, a lower die, a burr cutting unit an upper die, and a punch unit, wherein the burr cutting unit is pressed by the upper die in the process of performing the press processing and moves to the inner side of the upper die, and when the pressing force of the upper die is released after the shear processing is completed, moves to the outer side of the upper die and removes burrs formed by the shear processing on the lower surfaces of both ends of the material panel. According to the present invention as described above, since a separate device for removing burrs is not required, costs can be greatly reduced and product productivity can be greatly improved.

Description

Press forming apparatus having a burr cutting unit {press forming apparatus having burr cutting unit}

The present invention relates to a press forming apparatus, and more particularly, by improving the structure of the apparatus to remove burrs formed on the lower surfaces of both ends of a material panel in the process of performing shear processing on both ends of a material panel with one forming apparatus. It relates to a press forming apparatus provided with a burr cutting unit so as to be able to do so.

In general, in a shearing process including trimming and piercing of a material panel to be press-formed, burrs are generated on the lower side of the sheared surface of the material panel.

The above-mentioned burr is not only a factor of return, but also a factor that causes poor painting during the painting process, so it must be essentially removed in the process of finishing the material panel.

Meanwhile, conventionally, a method in which a worker manually removes such a burr using an abrasive stone or brush paper has been used.

However, the above manual method has a problem in that the productivity of the product is lowered and the manufacturing cost is increased as a work process and manpower are additionally required to remove the burr.

In addition, in the above manual method, the quality of the product manufactured according to the deburring operator is not uniform, and the product is scratched during the deburring process or the operator is injured by sharp burrs.

In order to solve the above problem, Korean Patent Registration No. 10-0302154 discloses a metal press cutting that pressurizes and removes the burr formed on the lower side of the shear processing surface of the material panel through a separate press mold for burr removal. A water deburring device is proposed.

Korean Patent Registration No. 10-0302154 described above can solve various problems caused by the conventional manual method by automatically removing burrs formed on a material panel using a separate press mold.

However, Korean Patent Registration No. 10-0302154 requires a separate press mold to remove the burr, which increases the manufacturing cost of the product, and requires a separate work process to remove the burr after shearing the material panel. The problem of reduced productivity is still unresolved.

Korean Patent Registration No. 10-0302154 (Method and device for removing burrs from metal press cuts, 2001.11.22)

The present invention has been made to solve the above problems, and an object of the present invention is to improve the structure of the device and perform the shearing process of both ends of the material panel with one molding device, in the process of performing shearing of both ends of the material panel. It is to provide a press forming apparatus provided with a burr cutting unit so that the burr formed in can be removed together.

According to the present invention for achieving the above object, in the press molding apparatus for performing the shear processing of both ends of the material panel formed while performing press processing to press the material panel and mold it into a desired shape, a lower base and a cushion Installed to be able to move up and down on the upper part of the lower base through pins, and installed to be able to move up and down on at least both sides of the lower die among the upper part of the lower die and the lower die having a lower molding surface corresponding to the lower surface of the material panel on the upper surface; At the same time, it is installed to be movable in and out of the lower die, and a burr cutting part in which a cutter protrudes from the outer surface of the upper end and an upper molded part that is installed to be able to move up and down on the upper part of the lower die and corresponds to the upper surface of the material panel on the lower surface A surface is formed, and an upper die that presses the material panel together with the lower die to form a product panel having a desired shape, and the material panel is installed to be liftable on at least both sides of the upper die and press-worked. Including a punch unit for performing shearing of both ends of, wherein the burr cutting unit is pressed by the upper die in the process of performing the press processing and moves inward of the upper die, and after the shearing is completed, When the pressing force of the upper die is released, the upper die is moved outwardly and the burrs formed on the lower surfaces of both ends of the material panel are removed by shearing. do.

Here, the burr cutting unit is installed on at least both sides of the lower die, and is disposed on a fixed body having an upper inclined surface inclined upward in an outward direction of the lower die at an upper end and an upper portion of the fixed body, the upper inclined surface and the upper inclined surface at the lower end. A corresponding lower inclined surface is formed and is installed to be movable in and out of the fixed body, and is interposed between a movable body having a protruding cutter on the outer surface of the upper end and the lower die and the movable body, and the lower die is attached to the movable body. It is characterized in that it includes an elastic member for applying an elastic force in an outward direction.

According to the present invention as described above, since the burrs formed on the lower portions of both ends of the material panel can be removed together in the process of performing the shearing of both ends of the material panel with one molding device, a separate device for removing the burrs is required. Since it is not required, the cost can be greatly reduced.

In addition, since the present invention removes the burrs formed at the lower ends of both ends of the material panel together during the shearing process during the shearing process, the productivity of the product is greatly improved since a separate process for removing the burrs is not required.

1 schematically shows a press molding apparatus according to an embodiment of the present invention;
2 is an enlarged view of area A of FIG. 1;
Figures 3a to 3d are views for explaining the operation of the press forming apparatus according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings. It should be noted that like elements in the drawings are indicated by like reference numerals wherever possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the invention will be omitted.

1 schematically illustrates a press forming apparatus according to an embodiment of the present invention, and FIG. 2 is an enlarged view of area A of FIG. 1 .

Referring to FIGS. 1 and 2, the press forming apparatus 1 according to an embodiment of the present invention presses the material panel P to form the material panel P into a desired shape while performing a press process. As to perform the shear processing of both ends of the, it includes a lower base 10, a lower die 20, a burr cutting unit 30, an upper die 40, a punch unit 50.

The lower base 10 is installed in an installation target area to provide an installation area for the lower die 20, the burr cutting unit 30, the upper die 40, and the punch unit 50.

The lower die 20 is movably installed on the upper part of the lower base 10 through the cushion pin C, and a convex surface corresponding to the lower surface of the product panel is formed on the upper surface.

The burr cutting unit 30 is installed to be able to move up and down on at least both sides of the lower die 20 of the upper part of the lower base 10 and at the same time is installed to be movable in and out of the lower die 20, and the cutter is installed on the outer surface of the upper end. Is formed by protruding, as shown in Figure 2, it consists of a fixed body 31, a moving body 32 and an elastic member (33).

The fixing body 31 is installed on at least both sides of the lower die 20, and an upper inclined surface 31a is formed at an upper end portion of the lower die 20 in an upwardly inclined outward direction.

The movable body 32 is disposed on the upper part of the fixed body 31, a lower inclined surface 32a corresponding to the upper inclined surface 31a is formed at the lower end, and a cutter 32b protrudes from the outer surface of the upper end. The movable body 32 is installed to be movable in and outward of the lower die 20 while the lower inclined surface 32a slides along the upper inclined surface 31a.

Both ends of the elastic member 33 are fixedly coupled to one side of the outer surface of the lower die 20 and one side of the inner surface of the moving body 32 corresponding thereto, and apply elastic force to the moving body 32 in the outward direction of the lower die 20. plays an accrediting role.

Through the above structure, when the burr cutting part 30 is pressed by the upper die 40 in the process of press processing by the upper die 40 described later, it moves inward of the upper die 40 to form a punch to be described later. Interference with the unit 50 is prevented.

After the burr cutting unit 30 is sheared by the punch unit 50, which will be described later, the punch unit 50 and the upper die 40 move upward so that the pressurization by the upper die 40 is released. When the moving body 32 is moved outwardly of the upper die 40 by the elastic force of the elastic member 33, the cutter 32b is formed on the lower surface of both ends of the material panel P by shearing. burr) is removed.

The upper die 40 is movably installed on the upper part of the lower die 20, a concave surface corresponding to the upper surface of the product panel is formed on the lower surface, and the material panel P seated on the lower die 20 is lowered. It serves to press together with the die 20 to press and form a product panel of a desired shape.

The punch unit 50 is disposed on the upper part of the upper die 40, and the upper body 51 movably installed in the upper die 40 through the cushion pin C, and the upper body 51 from both sides. It is formed to extend downward and includes a punch 52 disposed in close contact with both sides of the upper die 40.

After the punch unit 50 is press-worked, the punch 52 descends downward from the upper die 40 to shear both ends of the material panel P extending to both sides of the upper die 40. plays a role in

3A to 3D are diagrams for explaining the operation of a press forming apparatus according to an embodiment of the present invention.

Looking at the operation of the press forming apparatus 1 according to an embodiment of the present invention with reference to FIGS. 3A and 3D, as shown in FIG. 3A, the upper die 40 and the punch unit 50 are lower die 20 ), the material panel P is seated on the convex surface of the lower die 20 in a state of being disposed on the upper part.

At this time, the movable body 32 of the burr cutting unit 30 receives elastic force in the outward direction of the lower die 20 through the elastic member 33, and the cutter 32b protruding from the outer surface of the upper end is formed on the upper die 40. ) is placed on the outer side of the outer surface of the

Next, as shown in FIG. 3B, when the upper die 40 and the punch unit 50 are lowered, the upper die 40 presses the lower die 20 toward the lower base 10 while lowering the lower die 20 and the lower die 20. Pressing is performed by pressing the material panel P together, and the lower end of the punch 51 of the punch unit 50 is supported on the upper surface of the material panel P extending to both sides of the upper die 40.

At this time, as shown in enlarged view B, the moving body 32 of the burr cutting unit 30 is pressed by the upper die 40 so that the lower inclined surface 32a is the upper inclined surface 31a of the fixed body 31. While sliding along the lower die 20, the cutter 32b protruding on the outer surface of the upper end interferes with the inner surface of the punch 52 of the punch unit 50 as it moves inward along with the lower die 20 and at the same time moves in the inner direction of the lower die 20. It is disposed on the inner side of the outer surface of the upper die 40, which is not.

Next, as shown in FIG. 3C, when the punch unit 50 is lowered downward from the upper die 40, the lower end of the punch 52 forms a material panel P extending to both sides of the upper die 40. of shearing is performed.

At this time, in the process of performing the shearing process by the punch unit 50, as shown in the enlarged view C, burrs (b) are formed at the bottom of both ends of the material panel P, and the burr cutting unit 30 As shown in the enlarged view C, the moving body 32 of the lower die 20 moves a little more inwardly at the same time as it descends.

Finally, as shown in FIG. 3D, when the upper die 40 and the punch unit 50 rise above the lower die 20, the pressing force of the upper die 40 is released, and the lower die 20 cushions The movable body 32 of the burr cutting part 30, which returns to its original position by the cushion pressure of the pin C and the pressing force of the upper die 40 is released, moves along the lower inclined surface 32a by the elastic force of the elastic member 33. While sliding along the upper inclined surface 31a of the fixed body 31, the upper end rises while maintaining close contact with the material panel P, and at the same time, as it moves outwardly of the lower die 20, it protrudes from the outer surface. As shown in enlarged view D, the formed cutter 32b cuts and removes burrs b formed on the lower surfaces of both ends of the material panel P.

As described above, the press forming apparatus according to an embodiment of the present invention can remove the burrs formed at the lower ends of both ends of the material panel together in the process of performing shearing of both ends of the material panel with one forming apparatus. Since a separate device for removing the burr is not required, the cost accordingly can be greatly reduced.

In addition, since the present invention removes the burrs formed at the lower ends of both ends of the material panel together during the shearing process during the shearing process, the productivity of the product is greatly improved since a separate process for removing the burrs is not required.

Although the present invention has been described with respect to the above preferred embodiments, it is possible to make various modifications and variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will cover such modifications and variations as fall within the subject matter of this invention.

1: press molding device 10: lower base
20: lower die 30: burr cutting unit
31: fixed body 31a: upper slope
32: moving body 32a: lower slope
32b: cutter 33: elastic member
40: upper die 50: punch unit
51: upper body 52: punch
C: Cushion pin P: Material panel
b: burr

Claims (2)

In the press molding apparatus for performing shear processing of both ends of the material panel while performing press processing to press the material panel and mold it into a product panel of a desired shape,
a lower base;
a lower die which is movably installed on the upper part of the lower base through a cushion pin and has a lower molding surface corresponding to the lower surface of the product panel on the upper surface thereof;
a burr cutting part installed on at least both sides of the lower die among the upper portion of the lower base to be able to move up and down and to be movable in and out of the lower die, and having a cutter protruding from an outer surface of the upper end;
It is installed to be able to move up and down on the upper part of the lower die, an upper molding surface corresponding to the upper surface of the product panel is formed on the lower surface, and press working to press the material panel together with the lower die to form a product panel of a desired shape an upper die to perform;
A punch unit installed to be liftable on at least both sides of the upper die and performing shear processing on both ends of the press-processed material panel,
The burr cutting part is pressed by the upper die during the press working process and moves inward of the upper die, and when the pressing force of the upper die is released after the shearing process is completed, the outer side of the upper die Press molding apparatus capable of automatically removing burrs, characterized in that the cutter removes the burrs formed on the lower surfaces of both ends of the material panel by shearing while moving in the direction.
According to claim 1,
The burr cutting part
a fixing body installed on at least both sides of the lower die and having an upper inclined surface inclined upward in an outward direction of the lower die at an upper end thereof;
a movable body disposed on an upper portion of the fixed body, a lower inclined surface corresponding to the upper inclined surface is formed at a lower end thereof to be movable in an inward and outward direction of the fixed body, and a cutter protrudes from an outer surface of the upper end;
and an elastic member interposed between the lower die and the movable body and applying an elastic force to the movable body in an outward direction of the lower die.

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