JP2546216Y2 - 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 punch press in which a moving direction of a workpiece and a moving direction of a punch holder and a die holder are perpendicular to each other.

[0002]

2. Description of the Related Art In a conventional punch press, a processing position is fixed, a carriage base provided on a work table is moved in one axis direction, and a carriage provided with a work clamp provided on the carriage base is transferred to a carriage. The work clamped by the work clamp is moved in a direction perpendicular to the ledge base, and the work clamped by the work clamp is moved in the biaxial directions to be positioned at the processing position and perform punching. In order to cope with complicated punching, a plurality of types of punches and dies are housed in an upper turret and a lower turret, respectively, and the upper and lower turrets are configured to be able to rotate to a processing position to cope with them.

In a ram moving type punch press, a work is moved in one axis direction, a punch and a die are moved in another axis direction, and a ram is moved along the punch. Was configured to.

[0004]

However, in the former punch press described above, in order to perform punching at any position of the work, a work table having at least about four times the size of the work must be provided. Not
There is a problem that the size of the punch press is deviated from the miniaturization, and the installation area is not reduced. In addition, in the latter ram-movable punch press, which is the latter of the punch press, the work can be moved in one axial direction. For this reason, the size of the work table may be about twice as large as the work, but a plurality of types of punches and dies were prepared and could not be used interchangeably. Therefore, there is a problem that complicated punching cannot be performed.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, the present invention provides a work clamp capable of holding a plate-shaped work so as to be movable in the X-axis direction, and processes the work. The punch and the die holder supporting the punch and the die for the
In a punch press provided movably in the axial direction,
A punch holder driving device for moving the punch holder in the Y-axis direction is provided on a frame extending in the Y-axis direction, and the die holder is moved in the Y-axis direction separately from the punch holder. A die holder driving device is provided on the frame, a ram cylinder provided with a striker capable of pressing the punch is provided on the frame so as to be movable in the Y-axis direction, and the punch holder and the ram cylinder are integrally formed. A ram cylinder connecting device that can be connected and the connection can be released is provided.

[0006]

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

As shown in FIG. 5, the punch press 1 is provided with a work table 3 extending in the left-right direction (X-axis direction) of the figure and a Y-axis perpendicular to the substantially center of the work table 3.
And a frame 5 provided in the axial direction.

The work table 3 is a table on which a work W to be processed is placed. The work table 3 has a length approximately twice as long as the length of the work W in the longitudinal direction. A work moving device 7 for moving and positioning is provided. The work moving device 7 is provided on a lower side of a substantially center of the work table 3 along the X-axis direction, a ball screw 9 for operating the ball screw 9, and moves in the X-axis direction by engaging with the ball screw 9. And a work clamp 15 provided in the carriage 13.

The frame 5 is a portal frame which is installed in a direction perpendicular to the work table 3 and comprises an upper frame 17 provided above the frame 5 and a lower frame 19 provided below. The two upper and lower frames 17 and 19 are vertically divided into two with the work table 3 as a boundary. The upper frame 17 is provided with a punch holder driving device 23 for moving the punch holder 21, and the lower frame 19 is provided with a die holder driving device 27 for moving the die holder 25.

Each of these driving devices includes a ball screw 29 for moving the punch holder and the same motor 31, and a ball screw 33 for moving the die holder and the same motor 35. The punch holder 21 is moved along the upper The die holder 25 is configured to be movable in the Y-axis direction along the lower frame 19 in synchronization with each other (the punch holder 21 side is shown in FIG. 5, but the die holder 25 is the punch holder 21). , So only the sign is entered).

At one end (lower side in FIG. 5) of the frame 5, a mold magazine 37 for separately storing the punch holder 21 and the die holder 25 is provided. A punch holder 21 having one or a plurality of punches and dies, and a die holder 25 are housed in 37. The punch holder 21 and the die holder 25 in the mold magazine 37 are exchanged by a known work changer 39 interposed between the mold magazine 37 and the frame 5.

As shown in FIG. 1, the upper frame 17 includes left and right side plates 41R and 41L which are installed in a direction perpendicular to the X-axis direction of the work table 3, and
Inwardly protruding plates 43R, 43 provided below R, 41L.
L and two inwardly projecting plates 43R, 43L.
Are arranged in parallel with each other with a predetermined gap. Ram moving support members 45R and 45L are provided on the upper surfaces of the distal ends of the inwardly protruding plates 43R and 43L. The ram moving support members 45R and 45L are guide rail-like members provided in parallel with each other in the Y-axis direction (front and back sides of the paper), and the width of the work table 3 along the upper frame 17 in the Y-axis direction. It is formed.

A ram cylinder mounting base 49 is movably provided on the ram movement supporting members 45R and 45L via mounting sliding members 47R and 47L. The ram cylinder mounting pedestal 49 is a pedestal for supporting the ram cylinder 51. The upper portion is made of a cylindrical body, and a piston rod is provided in the ram cylinder 51 so as to be vertically movable. A lower portion of the ram cylinder 51 is provided with a disk portion 53 formed in a flange shape.
Are provided with a plurality of reinforcing ribs 55 on the lower surface side. Of the plurality of ribs 55 provided, a rib 55 provided in the X-axis direction from the center has a shot pin 57 described later.
A pin hole 59 that engages with the tip of is formed.

A striker 63 is provided at the lower end of the piston rod of the ram cylinder 51 via a striker shift device 61 so as to be shifted in the X-axis direction. The striker shift device 61 includes a base disk 65 substantially equal to the diameter of the piston rod, and a shift cylinder 67 for shifting the base disk 65 in the X-axis direction. Regardless of the shift, the base disk 65 receives the pressing force of the ram cylinder and can transmit the pressure to the striker 63 provided on the base disk 65.

The upper frame 17 having such a configuration
A guide side plate 69 is fixed to one of the side plates 41R, and a punch holder moving support member 71 for moving the punch holder 21 is provided below the guide side plate 69 in at least two upper and lower stages in the Y-axis direction. It is. The punch holder moving support member 71 includes a punch holder mounting sliding member 73.
, A punch holder supporting member 75 is movably provided.

The punch holder supporting member 75 has a storage portion 77 at the front end for storing the punch holder 21. An arm portion 79 extends on one side of the storage portion 77, and stands upright at the rear end. A substantially L-shaped member having a portion 81, a punch holder rotating motor 85 serving as a driving source of a punch holder rotating device 83, a shot pin driving cylinder 89 serving as a ram cylinder connecting device 87 on an arm portion 79. Is provided. A ball screw nut 91 for screwing the punch holder moving ball screw 29 for moving the punch holder supporting member 75 in the Y-axis direction is provided in the arm portion 79.

In such a configuration, when the punch holder moving ball screw 29 is rotated, the punch holder supporting member 75 screwed with the ball screw 29 is moved in the Y-axis direction along the punch holder moving supporting member 71. . At this time, if the shot pin 57 of the shot pin driving cylinder 89 constituting the ram cylinder coupling device 87 is engaged with the pin hole 59 provided in the ram cylinder mounting base 49, the movement of the punch holder support member 75 Ram cylinder 5 according to
Reference numeral 1 moves in the upper frame 17 in the Y-axis direction.

The punch holder rotating device 83 is driven by a punch holder rotating motor 85 so that a worm gear 93 provided at the tip of a rotating shaft meshes with a worm wheel 95 provided on the punch holder 21. Is a device for rotating the inside of the storage portion 77 of the punch holder support member 75.

The punch holder 21 has a flange 97 at its upper part.
And a punch 101 provided in the holder 99 so as to be vertically movable. The worm wheel 95 is provided on a side surface of the flange portion 97, and is rotated via a bush 103 in the storage portion 77 by driving of a punch holder rotating motor 85 of the punch holder rotating device 83. .

The punch 101 has a housing 105 on the outer periphery thereof. An upper mold 101 is formed at the tip of the housing 105, and a main body having a shaft portion 106 and a pressure receiving portion (head) 104 at the rear portion. And a coil spring 107 provided between the back side of the pressure receiving portion 104 and the upper end surface of the housing 105. When a pressing force is applied on the pressure receiving portion 104, the punch body descends downward, and the housing 10.
The upper die (punch) 101 protrudes from the lower end surface of the workpiece 5, and punches the work W.

A key groove 109 is formed in a part of the outer peripheral surface of the housing 105 of the punch 101, and is supported by the holder 99 via the key groove 109 so as to be vertically movable and non-rotatably. I have. A metal fitting 111 having a funnel cross section is provided below the projecting step on the upper part of the housing 105 of the punch 101, and a shock absorber 113 is provided at an upper end of the metal fitting 111. The shock absorber 113 includes a guide shaft 115 and a coil spring 117 so as to reduce the impact of the striker 63 of the ram cylinder 51.

FIG. 2 shows a work table 3 of the punch press 1.
2 shows a frame structure provided under the. A lower frame 19 is provided below the worktable 3 at a position facing the upper frame 17 (see FIG. 1). The lower frame 19 is composed of two parallel side plates 11 arranged on the left and right.
9R, 119L and inwardly protruding plates 121R, 121
L and two inwardly projecting plates 121R and 121R.
1L, an opening 123 is provided. Reinforcing ribs 125R and 125L are arranged at predetermined intervals on the lower right and left sides of the opening 123 in front and back directions (Y-axis direction) in the figure. is there. Upper side plates 127R and 127L provided in parallel with each other are provided upright on the left and right sides of the opening 123 in the Y-axis direction.

A guide side plate 129 is provided on one side (the right side in FIG. 2) of the lower frame 19, and on the side surface located above the guide side plate 129, they are juxtaposed in the Y-axis direction. Die holder moving support member 131
Has been fixed. This die holder moving support member 131
The die holder sliding support member 133 is attached to the, and the die holder moving support member 133 is provided with a movable member 135 which is screwed to the die holder moving ball screw 33 in the Y-axis direction.

The movable member 135 is provided with a projecting plate 137 projecting laterally at the center thereof, and a support shaft 139 is provided on the upper surface of the projecting plate 137.
To the die holder supporting member 14 via a coil spring 141.
3 are attached. This die holder supporting member 143
A die holder accommodating portion 145 for accommodating the die holder 25 is provided at a tip end of the die holder 25. The die holder 25 is rotatably accommodated in the die holder accommodating portion 145.

The die holder 25 is provided in the die holder housing 1.
The cylindrical member 147 is rotatably housed in the cylindrical member 45, and a flange member 149 is installed in the cylindrical member 147. A worm wheel 151 is provided on an end face of the flange member 149. A die 153 serving as a lower mold is attached to the center of the upper surface of the flange member 149, and a die holder cover 155 covering the flange member 149 is attached from the periphery of the die 153. The notch 1 through which the worm gear 159 of the die holder rotating motor 157 provided on the die holder support member 143 is inserted into the die holder cover 155.
61 are formed.

The thus configured die holder 25 is
The worm wheel 151 is moved via the die holder rotating motor 157 of the die holder rotating device 163 and the worm wheel 151 via the worm gear 159 by being moved in the Y-axis direction along the die holder moving support member 131 by the die holder moving ball screw 33 of the die holder driving device 27. And rotated. Therefore, by synchronizing the movement of the punch holder supporting member 75 (see FIG. 1) and the die holder supporting member 143 with the punch holder moving motor 31 and the die holder moving motor 35, the punch holder 21 and the die holder 25 are simultaneously formed. They can be moved by the same distance in the same direction. Further, the ram cylinder 51 can be moved on the punch holder 21 together by the ram cylinder moving device 87 that engages the shot pin 57 of the punch holder support member 75 with the ram cylinder mounting base 49.
The punching of the work W can be performed at any position in the Y-axis direction.

The punch 101 accommodated in the punch holder 21 is generally used from 1/2 ″ to 41/2 ″.
One or 4 to 5 pieces are accommodated as a set as a maximum size of 4 1/2 "out of the five types described above. The one shown in FIG. 3 has five 1/2" sizes and the one shown in FIG. Is 4 1/4 "
It accommodates four pieces of a size, which enables various types of punching. It goes without saying that the die 153 serving as the lower mold is similarly assembled.

Each of these punches has a housing 10
5, a punch 101 having a pressure receiving portion 104 is housed therein, and if the outer diameter of the housing 105 is unified, replacement with a holder is also possible.

The operation when the punch holder 21 shown in FIG. 3 is mounted on the punch press 1 shown in FIG. 1 will be described below.

The pressure receiving portion 104 is connected to the X
When the punch is set in the axial direction, the center punch position and the shot pin 57 on the punch holder support member 75 are aligned on a straight line, and the ram cylinder mounting base 49 is moved by the shot pin 57. It will be on any of the parts 104. Therefore, the work W is positioned in the X-axis direction and a predetermined punching process is performed.
Is shifted, the striker 63 is shifted to the next pressure receiving portion 104 and punching is performed.

In order to perform punching arranged in the Y-axis direction in the punch holder 25, the punch holder 25 is rotated 90 ° by the punch holder rotating motor 85 of the punch holder rotating device 83, so that the Y-axis Since the pressure receiving portion 104 placed in the direction is rotated in the X-axis direction, punching can be performed by the striker shift device 61 in the following. At this time, the die holder 25 may be simultaneously rotated.

FIG. 6 shows another embodiment of the present invention. The punch press 171 of this embodiment is the same as the punch press 1 of the above embodiment.
Instead of the mold magazine 37, the punch holder 21 and the die holder 25 are mounted on an endless chain 173 in two stages, upper and lower, and one stage of the chain 173 is circulated along the frame 5. Therefore, in this embodiment, the upper frame 1 shown in FIG. 1 is used without using the ball screw for moving the punch holder and the ball screw for moving the die holder.
The supporter of the punch holder 21 may slide on the punch holder moving support member 71 of the guide side plate 69 of FIG. One shot pin 57 is always provided on the punch holder 21 side, and the ram cylinder mounting base 49 is engaged with the shot pin 57.

On the other hand, the punching can be performed by moving the die holder 25 on the upper side plate 127 of the lower frame 19 with a supporter engaged with the die holder moving support member 131 shown in FIG.

As described above, the punch presses 1 and 171 of this embodiment are provided with the punch holder 21 provided with the plural kinds of punches 101 and the die holder 25 provided with the plural kinds of dies 133, By moving the pedestal 49 together with the pan holder 21 and shifting the striker 63 of the ram cylinder 51 in the X-axis direction, there is a feature that complicated punching can be easily performed.

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

[0036]

As will be understood from the above description of the embodiment, in short, the present invention provides a work clamp (15) capable of holding a plate-like work (W) so as to be movable in the X-axis direction. The punch (101) for processing the work (W), the punch holder (21) supporting the die (153), and the die holder (25) are moved in the Y-axis direction orthogonal to the X-axis direction. In a punch press that can be provided, a frame (5) extending in the Y-axis direction is provided with a punch holder driving device (23) for moving the punch holder (21) in the Y-axis direction. A die holder driving device (27) for moving the die holder (25) in the Y-axis direction separately from the punch holder (21) is provided on the frame (5). Y to the frame (5) and the ram cylinder (51) having a Da圧 possible striker (63)
A ram cylinder coupling device (8) that is supported so as to be movable in the axial direction and that can integrally connect the punch holder (21) and the ram cylinder (51) and can release the connection.
7) is provided.

As is clear from the above configuration, the present invention provides:
A punch holder 21, a die holder 25, and a ram cylinder 51 are movably supported in the Y-axis direction on a frame 5 provided in a direction orthogonal to the X-axis direction, which is the moving direction of the work W.

Therefore, according to the present invention, it is possible to shift the position of the punch holder 21 and the ram cylinder 51 in the Y-axis direction. Can be easily dismounted and replaced with the punch holder 21 without disturbing the punch.

Further, the punch holder 21 and the die holder 25
Can be displaced in the Y-axis direction, and when the die is to be attached to or detached from the die holder 25, the punch holder 21 does not become an obstacle, and the die holder can be easily attached or detached. Can be done.

Further, in the present invention, a ram cylinder connecting device 87 is provided which can integrally connect the punch holder 21 and the ram cylinder 51 and can release the connection. Since the ram cylinder 51 and the ram cylinder 51 can be connected, and in this case, the ram cylinder 51 can be moved integrally, the driving device for moving the ram cylinder 51 in the Y-axis direction includes a punch for moving the punch holder 21 in the Y-axis direction. Holder drive 2
3 can also be used, so that the configuration becomes simpler.

By releasing the connection by the ram cylinder connecting device 87, only the punch holder 21 can be moved in the Y-axis direction, and the ram cylinder 51 and the punch holder 21 can be displaced in the Y-axis direction. It is.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a punch press according to an embodiment of the present invention.

FIG. 2 is a sectional view showing a structure of a die holder arranged below the punching press of FIG.

FIG. 3 is a sectional view of another embodiment of the punch holder of FIG. 1;

FIG. 4 is an outside schematic view of another embodiment of the punch holder of FIG. 3;

FIG. 5 is a plan view showing the outline of the punch press shown in FIG. 1;

FIG. 6 is a plan view schematically showing a punch press according to another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1,171 Punch press 3 Work table 5 Frame 7 Work moving device 13 Carriage 15 Work clamp 21 Punch holder 23 Punch holder driving device 25 Die holder 27 Die holder driving device 61 Striker shift device 63 Striker 83 Punch holder rotating device 87 Ram cylinder moving device 101 Punch 53 Die 163 Die holder rotating device

Claims (1)

(57) [Scope of request for utility model registration] A work clamp (15) capable of gripping a plate-like work (W) movably in the X-axis direction, and a punch (101) for processing the work (W);
The punch holder (21) and the die holder (25) supporting the die (153) are connected to the Y-axis orthogonal to the X-axis direction.
In a punch press provided movably in the axial direction,
A punch holder driving device (23) for moving the punch holder (21) in the Y-axis direction is provided on a frame (5) extending in the Y-axis direction. Separately the die holder (25)
A die holder driving device (27) for moving the punch (1) in the Y-axis direction is provided on the frame (5).
A ram cylinder (51) provided with a striker (63) capable of pressing the ram cylinder (01) is provided on the frame (5) so as to be movable in the Y-axis direction, and the punch holder (21) and the ram cylinder (51) are provided. And a ram cylinder connecting device (87) capable of integrally connecting and disconnecting the ram cylinder.