JP3162770B2 - Punch press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical punch press capable of, for example, vertically holding a sheet material and performing punch press work from a horizontal direction.

[0002]

2. Description of the Related Art In a conventional punch press, a plate material is provided in a horizontal direction, and punching is performed by cooperation of a punch and a die from a vertical direction. For example, a turret punch will be described. On a horizontal support table provided on a frame, a clamp device for gripping a plate material is provided movably in the front-rear direction and the left-right direction. An upper turret with a punch mold,
A lower turret provided with a plurality of die dies is provided so as to face vertically. At a position vertically above the turret, a striker for pressing a punch die positioned at a predetermined position is provided so as to be vertically movable by the action of, for example, a hydraulic cylinder device.

After the plate material is placed on the support table, it is gripped by the clamp device and positioned with the movement of the clamp device. The upper turret and the lower turret are rotated by a predetermined angle in synchronization with each other, and The punching die and the die are positioned vertically below the striker, and the hydraulic cylinder device is operated to lower the striker to perform desired punching.

[0004]

However, in the above-described conventional punch press, an area at least about four times the plate material is required to move the clamp device holding the plate material horizontally, back and forth, and left and right on the support table. Therefore, there is a problem that the support table of the punch press is enlarged, and the space in the factory cannot be used effectively. In addition, the plate material is damaged by sliding between the plate material and the support table. There was also the problem of sticking and making noise.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and the invention according to claim 1 is capable of moving a work clamped by a plurality of clamping devices in the X-axis direction. And a punch head that supports a punch for performing punch press working on the work and a die head that supports a die are provided to face each other, and the punch head and the die head are arranged in a Y-axis direction orthogonal to the X-axis direction. In the punch press movably provided to the workpiece, the plurality of clamping devices are arranged to face each other so as to clamp the opposite side of the work, and one of the clamping devices is positioned to correspond to the size of the work. It is provided to be adjustable.

According to a second aspect of the present invention, in the punch press according to the first aspect, first and second slide members having a plurality of clamping devices capable of clamping opposing sides of the work are provided facing each other. In this configuration, the first and second slide members are provided so as to be relatively movable toward and away from each other and are integrally connected so as to be integrally movable in the X-axis direction.

According to a third aspect of the present invention, in the punch press according to the first or second aspect, the work is vertically supported and moved in a horizontal direction, and the punch head and the die head are vertically moved. It is a configuration to be moved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS.

In FIG. 1 and FIG. 2, the punch press 1 has a portal frame 5 erected substantially at the center of a base 3 installed on the floor. A horizontal frame 7 parallel to the upper surface of the base 3 is provided on the upper part of the gate-shaped frame 5, and connects the standing frames 5L and 5R, which are erected in the state where the gate-shaped frame 5 is opposed to each other. Each of the upright frames 5L and 5R has a flat cross section formed in a concave shape, and has insertion holes 13L and 1 through which die heads 9 and punch heads 11 to be described later protrude in mutually opposing inner surfaces.
3R is provided. The insertion ports 13L and 13R are rectangular shaped elongated in the up-down direction, and the length thereof is longer than the length of the long workpiece W in the width direction.

The die head 9 is an arm-shaped member provided with a die D at the tip. The die head 9 has an engaging portion for engaging with the ball screw 15L at the rear and an adjusting portion 17L for adjusting the position of the die D in the middle. ing. The ball screw 15L is provided in a vertical direction between the horizontal frame 7 and the base 3, and is connected to a driving motor 19L provided on the horizontal frame 7. The driving of the driving motor 19L causes the die head 9 to move in the Y direction. It is freely movable in the axial direction (vertical direction).

The punch head 11 has the same structure as the die head 9, and has an arm-shaped member provided with a punch P at the tip, an engaging portion engaging with the ball screw 15R, and a punch P.
Is provided with an adjustment unit 17R for adjusting the position. And
The ball screw 15R is connected to a driving motor 19R like the corresponding ball screw 15L, and the punch head 11 is also movable in the Y-axis direction (vertical direction) by driving the driving motor 19R.

Thus, the above-described drive motors 19L and 19L
Since the die head 9 and the punch head 11 are driven synchronously, the die head 9 and the punch head 11 are always kept at the same height, and are simultaneously moved in the same direction by the same distance. And
The punch P and the die D are driven by hydraulic operation or the like in the same manner as the normal punches P and D, and perform punching processing on the work W in cooperation with each other, and their axes are always in a straight line in the horizontal direction. Adjustment units 17R, 17
L is finely adjusted.

The gate frame 5 is provided with a carriage base 21 extending from the base 3 to the horizontal frame 7. The length of the carriage base 21 in the X-axis direction is about twice as long as the long workpiece W, and the upper portion is connected to the uppermost portion of the portal frame 3. The carriage base 21 has a frame-like frame configuration, and a mounting surface of a work W, which will be described later, forms a substantially rectangular opening 23.

The punch head 11 is located above and below the opening 23.
The guide rails 25 </ b> U and 25 </ b> D are provided to protrude to the side, and are provided in the X-axis direction orthogonal to the portal frame 5. A first slide member 27 and a second slide member 29 are attached to the guide rails 25U and 25D so as to be movable in the left-right direction (X-axis direction).

The first and second slide members 27 and 29 are inverted L-shaped members, and some of the members in the longitudinal direction are formed with a stepped portion. It is mounted facing. In the case of the embodiment, since the work W is carried in from the left side in FIG.
A plurality of positioning set pins 31 are provided on the step portion of the first slide member 27 on the left side. The positioning set pin 31 is provided so as to be able to protrude and retract with respect to the pass line of the work W, similarly to the positioning pin in a normal punch press.

The first and second slide members 27, 2
9 is moved in the X-axis direction by a slide driving motor 33 provided at the upper right of the carriage base 21.
A first ball screw 37 is provided on a rotating shaft of the slide driving motor 33 via a first belt wheel 35, and the first ball screw 37 is mounted on the carriage base 21.
Of the guide rail 25
The other end is rotatably attached to the carriage base 21 while maintaining a state parallel to U. This first ball screw 37
A first engagement member 39 provided on an upper portion of the second slide member 29 is screwed into the first ball screw 3.
The rotation of 7 moves the second slide member 29.

A first belt wheel 35 provided on a slide drive motor 33 for moving the second slide member 29 rotates a second belt wheel 43 provided below via a belt 41. . The second belt wheel 43 is provided with a second ball screw 45. The second ball screw 45 is provided in parallel with the first ball screw 37, and its length and mounting direction are also the first ball screw 45. 37 are set in the same manner. Then, the second ball screw 45
Is screwed to a second engagement member 47 provided below the second slide member 29 to move the second slide member 29 in the X-axis direction.

On the upper part of the first engaging member 39 provided on the upper part of the second slide member 29, a first collet 49 is mounted at a position one step higher. The first clamp rod 51 is stretched in parallel with the first ball screw. This first clamp rod 5
Reference numeral 1 extends leftward in FIG. 1 and is engaged with a second collet 53 provided on an upper portion of the first slide member 27. Therefore, the first collet 49 chucks the first clamp rod 51, and the second collet 53 and the first clamp rod 51 are chucked to operate the slide driving motor 33, thereby obtaining the second clamp rod 51. Slide member 29 and first slide member 2
7 are simultaneously moved in the X-axis direction integrally while maintaining the distance between the chucked positions.

A first gear box 55 is provided on the lower end surface of the first slide member 27, and a set of bevel gears 57 is mounted in the first gear box 55. A second clamp rod 59 is provided on the drive side of the bevel gear 57, a sub-slide drive motor 61 is mounted on one end of the second clamp rod 59, and the second slide member is provided on the other end. It extends to the right from 29. Then, the second slide member 2
9, a second gear box 63 provided on the lower end face is inserted. A pair of bevel gears 65 are also mounted in the second gear box 63, and the gears through which the second clamp rods 59 are slidably inserted have spline grooves formed with each other. The clamp rod 59 is not fixed to the bevel gear 65 in the second gear box 63,
It acts only to transmit the rotation of the shaft.

A collet 67 is provided adjacent to the second gear box 63, and the second clamp rod 59 and the second slide member 29 are tightened and loosened by the collet 67, so that the second slide Movement of member 29 first
To the slide member 27. More specifically, the first collet 49 and the second collet 53 are in a chucking state, and the collet 67 is chucked to operate the slide driving motor 33. The second slide member 29 is simultaneously moved in the X-axis direction integrally with the second slide member 29. On the other hand, when the second collet 53 and the collet 67 are reset and the slide driving motor 33 is operated, only the second slide member 29 moves in the X-axis direction and the first slide member 27 is moved. Can be changed corresponding to the work W. This operation can be changed at any time according to the size of the work W.

The first and second slide members 27 and 2
Sub-sliding members 69 formed of small L-shaped members are provided at the lower part of each of the sub-sliders 9 so as to be movable one by one. The sub-slide member 69 is engaged with the vertical ball screws 71 provided on the bevel gears 57 and 65, respectively, and receives the rotation of the second clamp rod 59 by the drive of the sub-slide drive motor 61. Then, the ball screw 71 is rotated, and the sub-slide member 69 is moved in the Y-axis direction.

The above-described first and second slide members 27
And 29 each have a pair of clamping devices 7
3 and the sub-slide member 69 are each provided with one clamp device 73, and the workpiece W is divided into three parts by one side, and the work W is divided into a first slide member 27 and a second slide member. Each of the opposed sides of the work W is gripped by a plurality of clamp devices 73 and is moved by the slide drive motor 33 on the front side of the carriage base 21 in the X-axis direction.

Each of the clamping devices 73 is the same, and is configured as shown in FIG. Each of the slide members 27 and 29 and the sub-slide member 69 are provided with a protruding clamp plate 75, and a clamp body 77 is attached to the clamp plate 75. The clamp body 77 is provided with a cylinder body 81 via a guide shaft 79.
A piston 83 is inserted through a spring 85 therein. A work gripper 89 is attached to the tip of the piston rod 87 of the piston 83.

The work gripping portion 89 has a clamper guide 91 at an upper portion, and the clamp guide 91 is screwed to the cylinder body 81 by bolts. The piston rod 87 is located below the clamper guide 91.
A wedge-shaped member 93 fixed to the wedge-shaped member 93 is movably provided. A clamper 99 having a contact 97 is provided on an inclined surface 95 of the wedge-shaped member 93. A push spring 101 is interposed between the clamper 99 and the wedge-shaped member 93 so as to press the contact 97 against the inclined surface 95. The clamper 99 is supported by a support shaft 103, and the tip of the clamper 99 is open in the state shown in FIG.

A nail plate 105 is attached to the lower side of the clamper 99 as a gripping cooperating member. The nail plate 105 is in contact with the tip of the cylinder body 81. This nail plate 105 has a long hole 10
A pin 109 protruding from the wedge-shaped member 93 is engaged in the elongated hole 107. The tip of the clamper 99 and the nail plate 105
Between them, a cylindrical side gauge 111 is provided, and the end face of the work W is in contact with the side gauge 111 to form a positioning member in the vertical direction (Y-axis direction).

The handle-like projection provided on the upper part of the clamp body 77 is a clamp lever 113 for detachably attaching the clamp device 73 to the clamp plate 75.

With the above configuration, the lower clamping device 73
When the work W is gripped by pressing the work W against the side gauge 111 and a pressurized gas or a pressurized liquid is supplied into the cylinder body 81, the piston 83 moves leftward in FIG. Advance. This piston 83
The wedge-shaped member 93 is pushed by the piston rod 87 due to the forward movement, and the contact 97 is pushed up by the inclined surface 95 of the wedge-shaped member 93. With this acting force, the clamper 99 rotates counterclockwise about the support shaft 103, and the nail plate 105
The work W is grasped in cooperation with.

When the piston 83 is further pressed after the gripping, the wedge-shaped member 93 moves forward while maintaining the gripping state, and the pin 109 of the wedge-shaped member 93 comes into contact with the end of the elongated hole 107 of the nail plate 105, and the nail is fixed. The plate 105 and the clamper 99 project forward, advance from B to A in FIG. 3 to hold the work W, and are punched by the punch P and the die D.

At the time of this punching, the clamping device 7
3 enters the operating area of the punch head 11 and is detected by a separately provided detector (a limit switch or a monitoring sensor or the like) in the same manner as in a normal punch press. The clamp device 73 is returned to the position shown in FIG. 3 by the spring 85 by the clamp positioner mechanism for switching the pressure input. At this time, the clamper 99 is also opened and evacuated,
Upon receiving the signal from the detector again, a pressure input is applied to the cylinder body to return to the gripping state.

The work transfer device 115 shown in FIG. 1 is provided on the left side of the punch press 1 of the present embodiment having the above-described configuration. The work transfer device 115 includes upper and lower frames 117U and 117D that can store the width direction of the work W,
A pair of elastic rollers 119R, 119L provided at substantially both ends of the upper and lower frames 117U, 117D.
And guide members 121U and 121D provided on the upper and lower frames 117U and 117D.

The details of the work transfer device 115 are shown in FIG. The upper frame 117U is a rectangular frame, and the lower frame 117D is similarly formed. The upper and lower frames 117U and 117D are supported by columns 123, and the interval therebetween is set to be larger than the width direction of the long workpiece W.

On both sides of the upper and lower frames 117U and 117D in the longitudinal direction, elastic rollers 119R and 119L made of an elastic material such as hiker rubber are provided with their outer peripheral surfaces in contact with each other. The rotation shafts are pressed inward each other in the upper and lower frames 117U and 117D. Guide members 121U and 121D are provided vertically on a line connecting the contact lines on the left and right sides of the elastic rollers 119R and 119L.

Each of the guide members 121U and 121D is formed of a gutter-shaped member having a U-shaped cross section. A plurality of cylindrical rollers are arranged in parallel on a side having two adjacent sides. It is formed to facilitate the transfer of W.
Of the guide members 121U and 121D, the lower guide member 121D is provided on the lower frame 117D, the top surface of the roller is provided slightly higher than the upper surface of the lower frame 117D, and both ends of the lower guide member 121D are provided. Extends to the vicinity of the elastic rollers 119R and 119L. A plurality of cylinders 125 are provided on the back side of the lower frame 117D provided with the lower guide member 121D, and the piston rod member of the cylinder 125 is formed so that the lower guide member 121D can move up and down.

A support member 127 is provided on the left and right sides of the lower guide member 121D up to the back side surface of the upper frame 117U so as to hold the lower guide member 121D up and down. The upper guide member 121U is provided between the support members 127, and is fixed to the back side surface of the upper frame 117U. Therefore, the lower guide member 12
1D changes the position of the work W in accordance with the size (height in the width direction) of the work W and moves the work W to the upper and lower guide members 121.
It can be transported upright by U, 121D.

In the figure, reference numeral 129 denotes a work transfer device 115
Of the punch press 1 so as to match the operating position of the punch press 1.

The punch press 1 having the above configuration is similar to that shown in FIG.
When the work W is sent from the left side of the work, the work carry-in device 115 sandwiches the work W between the elastic rollers 119L and advances the work W toward the elastic rollers 119R between the upper and lower guide members 121U and 121D.

At this time, the first slide member 27 of the punch press 1 has been moved to the left end of the guide rail 25, so that the work W which has been fed is transferred to the first slide member 27.
The clamper 73 is in an open state. Next, the work W is moved to the second slide member 2.
9 is placed on the side gauge 111 of the clamp device 73 of the second slide member 29,
Is closed, and the upper side and the lower side as opposing sides of the work W are gripped. Next, the second slide member 29 side moves rightward, and then moves leftward to press the end portion of the work W against the positioning set pin 31 of the first slide member 27 to determine the origin position. Then, the clamp device 73 of the first slide member 27 is closed, and the opposite side of the workpiece W is gripped by all the clamp devices 73.

In the following, a desired punching process is performed by placing the punching position of the work W on the processing line of the punch head 11 and the die head 9 of the portal frame 5. And
To set the next processing position, the second slide member 29 and the first slide member 27 are simultaneously moved to perform punching.

Work W after all punching processes
Moves the first slide member 27 side to the left end of the guide rail 25 with the second slide member 29, releases the clamp device 73 on the first slide member 27 side, and allows the second slide member 29 to move the workpiece. W is the work loading device 1
Send to 15. In this case, by rotating the elastic roller 119 of the work loading device 115 in the reverse direction, the work W
Is carried out of the machine.

At the time of the punching, the clamping device 7
3 enters the approaching area of the punch head 11, the pressure of the cylinder body 81 of the clamp device 73 is released by the signal of the detector, and the clamper 99 and the nail plate 105 release the grip, Since it is retracted to the cylinder body 81 side, it does not hinder the punching process. Further, for the works W having different sizes, the position of the lower guide member 121D of the work loading device 115 and the position of the sub-slight member 69 provided on the first and second slide members 27 and 29 are set. Thereby, punching can be performed in the same manner as described above.

In the above-described embodiment, the work W is clamped on the basis of the upper edge, but the first and second slide members 27 are clamped.
And 29 are turned upside down, and the vertical movement side of the guide member 121 of the work loading device 115 is turned upside down, punching can be performed with the work W as the lower edge reference.

It should be noted that the present invention is not limited to the above-described embodiment, but by making appropriate changes,
Other embodiments can be implemented.

[0043]

As will be understood from the above description of the embodiments, the present invention has a structure in which the workpiece moves in the X-axis direction and the punch head and the die head move in the Y-axis direction. The occupied space can be reduced, and the space can be saved.

Since the work is clamped on the opposite side by a plurality of clamp devices and supported, no vibration occurs at the edge when the work is moved, so that noise can be suppressed. In addition, the generation of scratches due to sliding or the like can be suppressed.

Further, in the present invention, the first and second slide members provided with a plurality of clamping devices capable of clamping opposing sides of the work are opposed to each other, and are relatively freely approachable / separable and integrally connected. Because it is provided as possible, it is easy to clamp the opposite side of the work according to the size of the work, and the movement in the X-axis direction with the work held by a plurality of clamping devices is simple. It can be done with.

Further, in the present invention, the work is supported vertically and moved in the horizontal direction, and the punch head and the die head are moved in the vertical direction. Can be done.

[Brief description of the drawings]

FIG. 1 is a front view of a vertical punch press according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a cross-sectional view of a clamp device used in the punch press of FIG.

FIG. 4 is a perspective view of a work loading device of the punch press of FIG. 1;

[Explanation of symbols]

 Reference Signs List 1 punch press 5 portal frame 9 die head 11 punch head 21 carriage base 27 first slide member 29 second slide member 69 sub-slide member 73 clamp device

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-37500 (JP, A) JP-A-61-60225 (JP, A) JP-A-56-89336 (JP, A) JP-A-4-37 319025 (JP, A) JP-A-60-79909 (JP, A) JP-A-60-79908 (JP, A) JP-A-60-178001 (JP, A) JP-A-2-59825 (JP, U) Japanese Utility Model Publication No. 50-5100 (JP, Y1) Special Table Hei 5-507238 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B21D 28/24 B21D 28/02-28/04 B21D 28/34-28/36 B30B 7/00

Claims (3)

(57) [Claims] 1. A punch head which is provided with a work (W) clamped by a plurality of clamping devices (73) so as to be movable in the X-axis direction and supports a punch (P) for performing punch press working on the work (W). (11) and a die head (9) supporting the die (D) are provided facing each other,
In a punch press in which the punch head (11) and the die head (9) are provided so as to be movable in a Y-axis direction orthogonal to the X-axis direction, the plurality of clamping devices (73) are provided with the work (W). A punch press characterized in that it is disposed so as to clamp the opposite side of (1) and that one of the clamping devices is adjustable so as to correspond to the size of the work (W). 2. The punch press according to claim 1, wherein the first and second slide members (27, 29) each having a plurality of clamp devices (73) capable of clamping opposing sides of the work (W). The first and second slide members (27, 29) are provided so as to be integrally movable in the X-axis direction. A featured punch press. 3. The punch press according to claim 1, wherein the work (W) is vertically supported and moved in a horizontal direction, and the punch head (11) and the die head (9) are A punch press characterized by being moved vertically.