JP2901174B2 - Press machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a press working machine for press working construction machines and other mechanical parts, and more particularly to a press working machine for positioning a work (a sheet material to be processed) prior to press working and performing press working in that state.

[0002]

2. Description of the Related Art Conventionally, when press-working a work (sheet material to be processed) such as a car body part, the work is supplied by suction to a work supply device onto a positioning mounting surface of a lower press die. .

After that, the upper press die of the press machine is lowered, and press work is performed by engagement of the upper press die and the lower press die.

[0004]

However, simply supplying a work onto the work placement surface of the lower press die by the work supply device causes the work to be placed at a predetermined position on the work placement surface of the lower press die. Precise pressing cannot be performed due to inaccurate positioning.

[0005] In view of the above, press work is performed after an operator positions a work. However, this method requires a long time for positioning, is not efficient and is dangerous.

The present invention has been devised in view of the above circumstances, and even when the supply of the work to the lower press die is rough, the work can be positioned efficiently and accurately without manual operation. An object of the present invention is to provide a press machine capable of performing precision press working.

[0007]

According to a first aspect of the present invention, there is provided a method for supplying a work onto a positioning mounting surface of a press lower die by a work supply device. In a press working machine that performs press working by engaging with an upper press die, a corner positioning fixing member is disposed at some of a plurality of corners of a positioning mounting surface of the lower press die, and at least one corner is formed. A corner positioning movable member is arranged in a portion, and a rough guide that is warped outward is arranged in some of the plurality of sides of the positioning mounting surface, and corresponds to the positioning mounting surface on the lower surface of the press upper die. A horizontal positioning movable member is disposed on at least one side , and the corner positioning movable member is moved up and down by a press upper die.
A drive cam that slides up and down by engagement,
Slide cam split that slides left and right by moving the
Cam with sliding and engaging with the slide cam
With a plunger spring that pushes out the workpiece
It is characterized in that it is composed of a work plunger .

According to a second aspect of the present invention, a work supply
The workpiece is placed on the positioning mounting surface of the lower press die by the feeding device.
The press is supplied by engaging the lower press die and the upper press die.
In a press working machine for forming, a corner positioning fixing member is arranged at some of a plurality of corners of a positioning mounting surface of the lower press die, and at least one corner is formed.
A corner positioning movable member is arranged in a portion , and a rough guide that is warped outward is arranged in some portions of a plurality of side portions of the positioning mounting surface, and at least a portion corresponding to the positioning mounting surface on a lower surface of a press upper die is provided. A horizontal positioning movable member is arranged on one side , and the horizontal positioning movable member is a press upper die.
Fixed to the rear side corresponding to the positioning mounting surface of
Base block and guide fixed to base block
Pin and guide pin via coil spring
Slidable slide with inclined horizontal positioning slope
It is characterized in that it is constituted by a block .

According to the third aspect of the present invention, there is provided the first aspect.
In the press working machine described above, the positioning of the lower press die
Corners at both front corners and one rear corner of the mounting surface
Place the fixing member and place it on the other rear corner.
The corner positioning movable member is arranged, and the positioning mounting surface is
Rough guides warped outward on both sides and rear side of
Corresponding to the positioning mounting surface on the lower surface of the press upper die.
The horizontal positioning movable member is arranged on the rear side of the housing .

[0010] The means described in claim 4 of the present invention is claim 2.
In the press working machine described above, the positioning of the lower press die
Corners at both front corners and one rear corner of the mounting surface
Place the fixing member and place it on the other rear corner.
The corner positioning movable member is arranged, and the positioning mounting surface is
Rough guides warped outward on both sides and rear side of
Corresponding to the positioning mounting surface on the lower surface of the press upper die.
The horizontal positioning movable member is arranged on the rear side of the housing .

[0011]

According to the present invention, when a work is supplied to a press lower die by a work supply device, the work thus introduced is guided by the outwardly warped rough guides arranged at a plurality of positions on the positioning and placing surface, so that the corner is formed. The positioning fixing member and the corner positioning movable member are supplied on the positioning mounting surface on which the positioning fixing member and the corner positioning movable member are arranged.

The work supplied on the positioning mounting surface is
First, the plurality of work corners are positioned by the corner positioning and fixing member, and then the remaining work corners are positioned by the corner positioning movable member, and the entire corner of the work is positioned.

Subsequently, the work is pressed from above by a horizontal positioning movable member provided on one side of the upper mold of the work, thereby positioning the entire horizontal position of the work.
Specifically, even if the work is roughly supplied to the press lower mold, the rough position is determined first by the outwardly warped rough guide arranged on the side of the positioning mounting surface, and the press is pressed. It is supplied to the positioning mounting surface of the lower die.

Several corner portions of the workpiece are positioned by a plurality of corner positioning fixing members provided at the corners of the positioning mounting surface. Then, the remaining one corner of the work is positioned by the corner positioning movable member arranged at one corner of the positioning mounting surface of the work lower die by the engagement with the press upper die due to the lowering of the press upper die. The entire corner portion of the work is almost positioned.

Subsequently, the horizontal positioning movable member disposed on one side corresponding to the work positioning mounting surface of the upper die is operated, and the horizontal position is positioned so as to push down the raised portion of the work.

Therefore, even if the workpiece is roughly fed into the lower press die, it can be positioned efficiently and accurately without human intervention, and high-precision pressing can be performed. Claims
According to the first and third aspects, the work whose corner is substantially positioned by the rough guide and the corner positioning / fixing member is engaged with the lower press die by the lowering of the upper press die, whereby the drive cam slides down and slides. work up with a plunger spring slide cam having a cam split <br/> ring is horizontal sliding, engages with the slide cam
The runner moves horizontally, and one corner portion of the work is pressed against the inside of the positioning mounting surface, so that the entire corner portion of the work can be substantially positioned.

Further, according to the second and fourth aspects, the work positioned by the rough guide, the corner positioning and fixing member and the corner positioning movable member is engaged with the lower press die by the lowering of the upper press die. The horizontal position of the slide block is brought into contact with the work, and the slide block having the coil spring slides backward to press the raised portion of the work from above, thereby positioning the work horizontally.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the press working machine of the present invention.

Reference numeral 1 denotes a press machine main body, which comprises a press lower die 2, an upper press die 3, and a work supply device 4 for supplying a work A to the lower press die 2. The press lower die 2 is a fixed press die, and is disposed below the press machine body 1. On the other hand, the upper press die 3 is a movable press die that moves up and down by a built-in elevating device (not shown), and is disposed above the press machine body 1.

The work supply device 4 feeds a work (made of a sheet material to be processed, for example, a rectangular steel plate) A into a press lower die 2.
The apparatus includes a drive unit 5 provided in the press machine body 1, a link mechanism unit 6, and a work holding unit 7 for holding a work A.

The work holding section 7 is provided with a plurality of suction caps 8 for holding the work A by suction. A work transfer table 9 on which a plurality of works A transferred from another place are placed is provided below the work supply device 4.

On the press lower die 2, there is a positioning mounting surface 10 on which the work A is positioned and mounted, as shown in FIGS. A plurality of corners of the positioning mounting surface 10, for example, front left and right corners 11a, 11 of the positioning mounting surface 10.
A corner positioning and fixing member 12 made of a right-angled metal fitting is disposed at the bottom corner b and one rear corner 11c, and a lower press die by raising and lowering the upper press die 2 at the other rear corner 11d of the positioning mounting surface 10. A corner positioning movable member 13 that is movable by engagement with the third positioning member 3 is disposed.

The corner positioning movable member 13 is as shown in FIGS. That is, the corner positioning movable member 13 is located at the other rear corner 11 of the positioning placement surface 10.
A mounting groove 14 is formed in the groove d, and upper and lower guide plates 15, 16 and a vertical guide plate 17 are provided in the groove 14. The upper and lower guide plates 15, 16 and the vertical guide plate 17 are formed in the groove 14. A drive cam 18 that slides up and down by engagement with the press lower die 2 by lifting and lowering the press upper die 3 accommodated in a guide plate to be moved, and a slide cam spring that slides left and right by vertical movement of the drive cam 18 19 and slide cam 20 having a work plug having a plunger spring 21 to push the workpiece a engages with the slide cam 20
It is composed of Nja 22.

In addition, a plurality of sides of the positioning / mounting surface 10 of the press lower mold 2, for example, near both corners of the left and right sides 23 a and 23 b and the rear side 23 c of the positioning / mounting surface 10, are shown in FIG. As shown in FIG. 3, a plurality of outwardly warped rough guides 24 for positioning and guiding the work A are arranged.

Further, a horizontal positioning movable member 26 is disposed on a side portion of the lower surface 3a of the press upper die 3 corresponding to the positioning mounting surface 10, for example, a rear side portion 25 corresponding to the positioning mounting surface 10. Have been.

As shown in FIG. 6, the horizontal positioning movable member 26 includes a base block 27 fixed to the rear side portion 25 corresponding to the positioning mounting surface 10, a guide pin 28 fixed to the base block 27, and a guide. It comprises a slide block 31 having a horizontal positioning inclined surface 30 provided on a pin 28 via a coil spring 29 and capable of sliding backward.

When press-working the work A, first, as shown in FIG. 1, the work supply device 4 is operated, and the work A on the work transfer table 9 is sucked by the suction cap 8 of the work holding section 7. Adsorb.

Next, the work A sucked by the suction cap 8
Is brought above the press lower mold 2 of the press machine body 1 and supplied onto the positioning mounting surface 10 of the press lower mold 2. The work A supplied and guided by the rough guides 24 provided on the left and right side portions 23a and 23b and the rear side portion 23c of the positioning mounting surface 10 of the press lower die 2 is guided and guided on the positioning mounting surface 10. .

The left and right corners 1 on the front of the positioning mounting surface 10
1a, 11b and one rear corner 11c are provided with corner positioning and fixing members 12, which are used for the three corner portions of the work A guided on the positioning mounting surface 10 by these corner positioning and fixing members 12. Specify the position.

Next, the upper press die 3 on the lower press die 2
Is moved down, and the work A guided on the positioning mounting surface 10 by the corner positioning movable member 13 movable by the vertical engagement of the press upper die 2 provided at the other rear corner 11d of the corner positioning fixing member 12. Defines the position of the remaining corners of.

That is, before engagement with the press upper die 3, as shown in FIG.
Although not positioned, when the upper press die 3 descends and engages with the lower press die 2, the drive cam 18 moves in the guide groove 32 by the lower surface 3 a of the upper press die 3 as shown in FIG. The slide cam 20 is horizontally moved along the lower guide plate 16 by sliding downward and pressing the inclined surface 20a of the slide cam 20 by the inclined surface 18a of the drive cam 18 by the guide between the slide guide 20 and the vertical guide plate 17.

The horizontal movement of the slide cam 20 causes the work plunger 22 engaged with the slide cam 20 to move forward to push and define the remaining corners of the work A.
Positioning of the entire corner portion of the work A is performed.

The positioning mounting surface 10 of the upper press die 3
The horizontal positioning movable member 26 provided on the rear side portion 25 corresponding to the above is pressed from above the work A to define horizontal positioning.

That is, as the press upper die 3 descends, the end surface of the work A comes into contact with the horizontal positioning inclined surface 30 of the slide block 31 with the horizontal positioning movable member 26, and the slide block 31 retreats as the press upper die 3 descends. While the work A is being pressed, the raised portion of the work A is pressed from above, and the work A is moved slightly horizontally to perform horizontal positioning of the work A. Then, the positioned work A is cut by engaging the lower cutting edge 2a of the lower press die 2 with the upper cutting edge 3a of the upper press die 3.

In the above embodiment, the rectangular work A
Although the embodiment for press working is described above, the present invention can be applied to a press working machine for press-working a work having a trapezoidal shape, a pentagonal shape or other shapes.

In this case, it is desirable to appropriately select the arrangement and the number of the corner positioning fixed member, the corner positioning movable member, the rough guide and the horizontal positioning movable member according to the shape of the work.

The structures of the corner positioning / fixing member, the corner positioning movable member, the rough guide and the horizontal positioning movable member are not limited to those shown in the drawings.

[0038]

As described above, according to the present invention,
Even if the supply of the work to the press lower mold is rough, the work can be positioned efficiently and accurately without manual operation, and high-precision pressing can be performed.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view of an embodiment of the press machine of the present invention.

FIG. 2 is a plan view of a lower press die of the press machine of the present invention.

FIG. 3 is a partial cross-sectional view showing an engaged state between a lower press die and an upper press die of the press machine of the present invention.

FIG. 4 is an enlarged plan view of a corner positioning movable member of a main part of the press machine of the present invention.

5 is an enlarged sectional view of a corner positioning movable member of a main part of the press working machine of the present invention, taken along line XX in FIG. 4;

FIG. 6 is an enlarged cross-sectional view of a main part horizontal positioning movable member in an engaged state of a lower press die and an upper press die of the press working machine of the present invention.

FIG. 7 is a cross-sectional view of a state before a corner of a work is positioned by a corner positioning movable member.

FIG. 8 is a cross-sectional view showing a state where a corner of a work is positioned by a corner positioning movable member.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 Press machine main body 2 Press lower die 3 Press upper die 4 Work supply device 5 Drive unit 6 Link mechanism unit 7 Work holding unit 10 Positioning placement surface 11a, 11b, 11c, 11d Corner 12 Corner positioning fixing member 13 Corner positioning Movable member 18 Drive cam 19 Slide cam spring 20 Slide cam 21 Plunger spring 22 Work plunger 23a, 23b, 23c, 25 Side 24 Rough guide 26 Horizontal positioning movable member 27 Base block 28 Guide pin 29 Coil spring 30 Horizontal positioning inclined surface 31 Slide block A Work

Claims (4)

(57) [Claims] 1. A press machine for supplying a work to a positioning mounting surface of a lower press die by a work supply device and performing press working by engagement of the lower press die and the upper press die. Along with arranging corner positioning and fixing members in some parts of the plurality of corners of the mounting surface,
A corner positioning movable member is arranged in at least one corner portion, and an outwardly warped rough guide is arranged in some of a plurality of side portions of the positioning mounting surface, and the positioning of the lower surface of the press upper die is performed. A horizontal positioning movable member is arranged on at least one side corresponding to the mounting surface, and the corner position
The movable member is slid up and down by the vertical engagement of the press upper die.
The drive cam that moves and the drive cam
Slide cam with a slide cam spring that slides left and right
The workpiece is pushed out by engaging with the
Work plunger with plunger spring
Press machine, characterized in that the form was. 2. The position of a press lower die by a work supply device.
Work is supplied to the fixed mounting surface, and the lower press die and the upper press
Press machine that presses by engaging with a mold
Te, many more corners of positioning the mounting surface of the upper Symbol press lower die
While placing the corner positioning fixing member in such a part ,
A corner positioning movable member is arranged in at least one corner portion, and some of the plurality of sides of the positioning mounting surface are arranged.
A horizontal guide is disposed on at least one side corresponding to the positioning mounting surface on the lower surface of the press upper die, and the horizontal positioning is performed.
The movable member corresponds to the positioning mounting surface of the upper press die.
A base block fixed to the rear side
Guide pin fixed to the
Has a horizontal positioning inclined surface provided via a pulling
A press machine comprising a slide block capable of sliding backward . 3. The front of a positioning mounting surface of the lower press die.
Corner positioning fixing members at both corners and one rear corner
And position the corner at the other rear corner
Arranging a movable member, both sides of the positioning mounting surface and
Place a rough guide that is warped outward on the rear side, and press
Water is applied to the rear side of the lower surface of the mold corresponding to the positioning placement surface.
The press working machine according to claim 1, wherein a flat positioning movable member is arranged . 4. A front of a positioning mounting surface of the lower press die.
Corner positioning fixing members at both corners and one rear corner
And position the corner at the other rear corner
Arranging a movable member, both sides of the positioning mounting surface and
Place a rough guide that is warped outward on the rear side, and press
Water is applied to the rear side of the lower surface of the mold corresponding to the positioning placement surface.
The press working machine according to claim 2, wherein a flat positioning movable member is arranged .