JPH05228550A - Punch press - Google Patents

Abstract

PURPOSE:To discharge chips and dust dropped down onto a lower die holder by providing an air blowout port directed to the upper face of the lower die holder on several suitable parts of an air pipe provided so as to be freely passable horizontally on the upper face of the lower die holder. CONSTITUTION:An air pipe 71 is positioned in the lower direction separated from the lower turret 7. From the awaiting position, a swing cylinder 63 is operated, and a piston rod 65 is protruded. As for the position of the air pipe installed in the piston rod 65, it is positioned in the clearance of the upper and the lower turrets 5, 7 and positioned so as not to be abutted on the upper and the lower turrets 5, 7 at the time of turning. Also, the swing cylinder 63 is turned by 180 deg.. Also, at the time of turning, compressed air is fed into the air pipe 71, and from plural pieces of air blowout ports 75 formed in the air pipe 71, the compressed air is ejected to the upper face of the lower turret 7. In such a manner, even if chips and dust generated at the time of punching collect on the upper face of the lower turret 7, they are blown away by the compressed air.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punch press, and more particularly to a punch press having a mechanism for removing chips, dust and the like that have fallen on the upper surface of a lower die holder.

[0002]

2. Description of the Related Art Conventionally, when exchanging the punch and die provided on the circumference of the lower turret on the turret punch press,
For example, it is known to use a die arm having a tool holding part to replace a punch holder equipped with a punch and a die together with a die holder.

[0003]

By the way, when replacing the punch holder equipped with the punches and dies mounted on the upper and lower turrets of the above-mentioned conventional turret punch press and the die holder, especially when replacing the die holder. However, there was a problem that whiskers-like chips, dust, etc. generated during punching from above fell on the sliding part of the die holder and seized, making it impossible to insert / remove and hindering automatic operation.

In order to improve the above problems, an object of the present invention is to provide a punch press which improves the workability by discharging the chips and dust that have fallen on the lower turret or the lower die holder. is there.

[0005]

In order to achieve the above object, the present invention provides an air pipe that can horizontally pass over the upper surface of a lower mold holder that movably supports a die in a punch press. A punch press was constituted by providing air jet ports directed to the upper surface of the lower mold holder at appropriate positions on the air pipe.

[0006]

By using the punch press of the present invention, whiskers-like chips, dust, etc. collect on the lower die holder during punching, and these chips, dust, etc. slide on the sliding surface when the lower die holder is replaced. Operate an air pipe equipped with an air ejection port that horizontally passes over the upper surface of the lower turret so that it does not fall into and rust.

Thus, since the cutting air, dust, etc. accumulated on the upper surface of the lower mold holder are blown off by the compressed air injected from the air ejection port, workability is improved without being seized when replacing the lower mold holder. Planned.

[0008]

Embodiments of the present invention will be described in detail below with reference to the drawings. Note that the turret punch press, the replacement punch, and the stocker housing a plurality of die holders supporting the dies have a known structure, and thus detailed illustration and description thereof will be omitted.

Referring to FIG. 4, the turret punch press 1 is provided with a gate-shaped frame 3, and the frame 3 is rotatably supported by upper and lower turrets 5, 7. Pans P and dies D are mounted on the circumferences of the upper and lower turrets 5 and 7 at positions corresponding to each other.

The upper and lower turrets 5 and 7 are provided with a machining position 9 and a die exchange position 11 for exchanging the punch P and the die D.
Is provided and the frame 3 above the processing position 9 is provided.
In order to hit the punch P, a striker is provided so as to be movable up and down by a known driving device (not shown).

A center table 13 is fixedly arranged so as to surround the upper and lower turrets 5 and 7, and the front side tables 1 are provided on both sides of the center table 13.
5. The rear side table 17 is arranged so as to be movable in the Y-axis direction (oblique front-back direction in FIG. 4). Front and rear side tables 1 straddling the center table 13
A carriage base 19 extending in the X-axis direction and movable in the Y-axis direction is provided at the left ends of the reference numerals 5 and 17.

This carriage base 19 is provided with a carriage 21 which is movable in the X-axis direction, and this carriage 21 is provided with a plurality of work clamps 23 for clamping a work W. The carriage base 19 and the carriage 21 are moved in the Y-axis direction and the X-axis direction by a ball screw, a servomotor, etc., which are not shown in the drawings and are well known, but a detailed description of the configuration is omitted.

With the above structure, the carriage base 19 is moved in the Y-axis direction together with the front and rear side tables 15 and 17, and the carriage 21 is moved in the X-axis direction, whereby the work W clamped by the work clamp 23 is moved.
Moves in the X-axis and Y-axis directions, and the desired position of the work W is positioned at the processing position 9. When the desired position of the work W is positioned at the processing position 9, the upper and lower turrets 5 and 7 are rotated to index the desired punch P and die D to the processing position 9, and the punch is moved vertically by the striker. Punching is performed at a desired position of the work W by the cooperation of P and the die D.

In the vicinity of the frame 3 of the turret punch press 1, for example, on the left side in FIG. 4, there is arranged a stocker 27 for accommodating a plurality of die holders 25 supporting exchange punches and dies. In this stocker 27, a stocker base 33 is rotatably mounted on a column 31 standing on a pedestal 29, and a plurality of mold holders 25 are stored on the stocker base 33.

Between the stocker 27 and the mold changing position 11 of the turret punch press 1, there is provided an automatic mold changing device 35 which can reciprocate in the Y-axis direction. The traveling device 37, which is a part of the automatic mold changing device 35, is provided with an upper frame 39U and a lower frame 39D extending in the Y-axis direction on the upper and lower parts of the frame 39 equipped with the stocker 27.

On the upper and lower frames 39U and 39D,
A traveling block (not shown) is provided so as to be movable in the Y-axis direction, and a column 41 penetrating a rotary drive shaft (not shown) is fixed to the traveling block.

A punch exchanging hand 43 and a die exchanging hand 45 are mounted on the column 41 so as to be rotatable and vertically movable, and the column 41 is pinioned to both upper and lower ends of a rotary drive shaft which penetrates the inside. (Not shown) is meshed with upper and lower racks 47U and 47D that are horizontally provided in the upper and lower frames 39U and 39D in the Y-axis direction.

With the above structure, when the pinion is rotated by an electric motor or the like (not shown), the pinion is moved to the rack 47.
Since it meshes with U and 47D, it moves in the Y-axis direction. At this time, since the pinions are provided at the upper and lower ends of the rotary drive shaft, the rotary drive shaft can move in the Y-axis direction in synchronization with each other in a vertical state. That is, the column 41 having the rotation drive shaft built therein is smoothly moved in the Y-axis direction.

A disc 49 is provided at the upper and lower ends of the column 41, and a traveling cable 51, a swiveling cable 53, and a vertical movement cable 55 are attached to the disc 49, and the punch exchanging hand 43 and Die exchange hand 45
The wiring and piping members are connected to the electrical equipment or fluid-operated equipment provided in the.

Next, the air blow for cleaning the upper surface of the lower die holder 57 of the turret punch press 1 which is the main part of this embodiment will be described in detail.

Referring to FIGS. 1, 2 and 3, above,
In the frame 3 of the turret punch press 1 having the lower turrets 5 and 7, a bracket 59 is provided so as to project on a side plate that constitutes the lower frame 3 of the lower turret 7.
A cylinder support member 61 is integrally fixed to the side surface of the bracket 59, and a swing cylinder 63 is vertically provided on the cylinder support member 61. The swing cylinder 63 has a function of moving forward and backward and a turning function, and the configuration thereof is already known, so the description thereof will be omitted.

Piston rod 6 of swing cylinder 63
A block 67 is attached to the tip of the block 5.
The air pipe 71 is inserted into the hole 69 provided in the No. 7 and is fixed by the screw 73. In this air pipe 71,
A large number of air ejection ports 75 are formed at positions where air can be ejected toward the upper surface of the lower turret 7.

With the above-described structure, as its function, the standby position of the air pipe 71 is the T position shown by the two-dot chain line in FIG. 1, and the T position shown by the solid line in FIG.
In position. That is, the air pipe 71 is positioned downward from the lower turret 7.

From this standby position, the swing cylinder 63 is operated and the piston rod 65 is projected. The protrusion limit of the piston rod 65, that is, the position of the air pipe 71 attached to the piston rod 65 is located in the gap between the upper and lower turrets 5 and 7 and does not contact the upper and lower turrets 5 and 7 during turning. It is in. Then, the swing cylinder 63 is turned 180 °. During the turning, compressed air is sent into the air pipe 71 from a compressed air source (not shown), and the compressed air is jetted onto the upper surface of the lower turret 7 from a plurality of air jets 75 formed in the air pipe 71.

Therefore, even if the whisker-like chips and dust generated during the punching process are collected on the upper surface of the lower turret 7 having the lower die holder 57, they are blown off by the compressed air and discharged. When exchanging the lower die holder 57, chips, dust, etc. do not enter the sliding surface, eliminating galling and improving workability.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. Lower mold holder 57
Although the example of blowing away the chips and dust accumulated in the above has been described, it is also possible to blow off the chips and dust accumulated in the lower turret 7.

[0027]

As can be understood from the above description of the embodiments, according to the present invention, the air pipe swiveling between the upper and lower turrets is constructed as described in the claims. Is provided, and whisker-like chips and dust generated during punching process accumulate on the upper surface of the lower mold holder.
Compressed air is jetted and blown off from the chips and dust from the air jet port provided in the air pipe.

Thus, when exchanging the lower die holder, it is possible to prevent galling due to cutting chips and dust and improve workability.

[Brief description of drawings]

FIG. 1 is a front view of an air pipe device showing a main part of the present invention and cleaning an upper surface of a lower turret.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view seen from the right side in FIG.

FIG. 4 is a perspective view in which an automatic mold exchanging device is reciprocally provided between a turret punch press and a stocker according to an embodiment of the present invention.

[Explanation of symbols]

 1 Turret Punch Press 7 Lower Turret 57 Lower Mold Holder 71 Air Pipe 75 Air Jet

Claims (1)

[Claims] 1. An air pipe that can horizontally pass over the upper surface of a lower die holder that supports a die in a punch press so that the die can be detachably attached and replaced.
A punch press comprising an air ejection port directed to the upper surface of the lower die holder.