JPH10305328A - Turret punch press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an occurrence of damage to the dies or the machines, and of an inferior goods production and the like in advance, even when a setting mistake of the die takes place due to manual setting by automatical checking of the machine inside before the process starts. SOLUTION: The turret punch press comprises a lower turret 11, a diameter of which is greater than that of an upper turret 25 at least to an extent that a die set on the lower turret 11 is exposed visible from the upper turret 25 at an opposite side of the processing position R, a die recognition photo-taking device installed at a position above the die D exposed on the lower turret 11, the permeating holes 77 formed on the lower turret 11 at positions directly under and corresponding to the punch P installed at an opposite position to the processing point of the turret 25, and the punch recognition photo-taking device installed under the permeating hole 77, a number of which is equivalent to that of punches, circumferentially apart from the rotation center of the lower turret 11 with approximately the same diameter as that for the holes 77.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turret punch press provided with a die recognition device.

[0002]

2. Description of the Related Art For example, when a workpiece is punched by an NC-controlled turret punch press, a die (punch, die) used for the processing is changed according to an instruction written by a programmer or the like. It is generally performed by a worker while checking the size, direction, and the like.

[0003]

However, as described above, since the work of exchanging the dies is performed manually, a setting mistake is inevitably generated. That is, errors such as a station error, a shape error, a size error, a direction error, a clearance error, and a cross occur.

[0004] The occurrence of such a setting error causes mold damage, mechanical damage, product failure, and the like. Further, when such a case occurs, useless man-hours are generated.

An object of the present invention is to automatically check the inside of a machine before machining even if a mold is mistakenly set by hand to prevent the occurrence of mold breakage, machine breakage, product failure, etc. The present invention provides a turret punch press which prevents the above problem.

[0006]

According to a first aspect of the present invention, there is provided a turret punch press according to the present invention.
A turret punch press for indexing a punch mounted on an upper turret and a die mounted on a lower turret in a corresponding processing position, and performing punching processing on a work in cooperation with the punch and the die, wherein the processing position The lower turret has a larger diameter than the upper turret so that at least the die mounted on the lower turret is exposed from the upper turret on the opposite side, and the die is positioned above the exposed die mounted on the lower turret. An imaging means for recognition is provided, and a transmission hole is formed at a position of a lower turret corresponding to a position directly below a punch mounted on a position opposite to a processing position on the upper turret, and an image for punch recognition is formed at a position below the transmission hole. Means are provided, and the transmission holes are formed from the rotation center of the lower turret with a diameter substantially equal to that of the transmission holes and in the circumferential direction by the number of punches mounted. It is an feature.

[0007] Therefore, the recognition of the die is performed by recognizing the exposed die which is located at the position opposite to the processing position of the lower turret having a larger diameter than the upper turret, at the upper position. The imaging is performed by the imaging unit for use. In addition, the punch is recognized at a lower position through a transmission hole formed in a lower turret indexed corresponding to a position immediately below the punch of the upper turret indexed to a position opposite to the processing position. The image is picked up by an image pickup means for punch recognition provided.

Therefore, even if a mistake in setting the die of the punch and the die by hand occurs, before the machining, the inside of the machine is automatically performed based on the image picked up by the image pickup means for punch and die recognition. Is checked in advance to prevent the occurrence of mold damage, mechanical damage, product failure, and the like.

According to a second aspect of the present invention, there is provided a turret punch press according to the first aspect,
The upper turret and the lower turret are synchronized and driven to rotate.

Therefore, by synchronizing and rotating the upper turret and the turret, the punch and the die are recognized by the punch and die recognition imaging means by simultaneously imaging the punch and the die. Thus, the recognition of the punch and the die is performed more quickly.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIGS. 3 and 4 show a turret punch press 1 according to the present invention. The turret punch press 1 has a portal frame 9 including a lower frame 3, an upper frame 5 and a column 7, and has a gap G at a central portion of the portal frame 9.

Above the lower frame 3 in the gap G, a large-diameter lower turret 11 on which a plurality of dies D are exchangeably mounted is provided so as to be rotatable around a rotary shaft 13. The rotating shaft 13 is rotatably supported by a rotating bearing 15 such as a bearing, and a sprocket 17 provided at a halfway height position of the rotating shaft 13.
Are connected to a sprocket 21 via a rotation transmission member such as a chain 19. FIG.
, A rotating shaft 23 extending vertically is mounted.

On the other hand, the upper frame 5 in the gap G
On the lower side, a small-diameter upper turret 25 on which a plurality of punches P are exchangeably mounted is rotatably indexed around a rotation axis 27. The die D indexed by 11 is opposed. The rotating shaft 27 is provided at a position different from the position of the rotating shaft 13 of the lower turret 11.
9 rotatably supported. The sprocket 31 provided at an intermediate height position of the rotating shaft 27 is connected to the sprocket 35 via a rotation transmitting member such as a chain 33. The sprocket 35 has the rotating shaft 23
Is installed.

A gear 37 is fitted on the rotating shaft 23, and another gear 39 is meshed with the gear 37. A drive shaft 41 is mounted on the gear 39, and the drive shaft 41 is connected to, for example, a drive motor 43 mounted on the lower frame 3.

With the above configuration, when the drive motor 43 is driven, the rotating shaft 23 is rotated via the drive shaft 41 and the gears 39 and 37. By the rotation of the rotating shaft 23, the sprocket 21, the chain 19, the sprocket 17
The lower turret 11 is rotated by rotating the rotating shaft 13 via the. Also, by the rotation of the rotating shaft 23,
The rotation of the rotating shaft 27 via the sprocket 35, the chain 33, and the sprocket 31 causes the upper turret 2 to rotate.
5 is rotated. Therefore, the lower turret 11 and the upper turret 25 are synchronously rotated by the driving of the drive motor 43. In addition, at the processing position R, the indexed punch P and the die D face each other.

The upper turret 2 in the upper frame 5
Above the processing position R, a crankshaft 45 rotatably driven by a motor (not shown) is rotatably supported, and a connecting rod 47 is attached to the crankshaft 45.
A striker 49 is provided to be vertically movable via the.

Accordingly, when the crankshaft 45 is rotationally driven by a motor (not shown), the striker 49 moves up and down via the connecting rod 47, and hits the punch P indexed to the processing position R. Punching is performed on the work W in cooperation with the die D which is indexed. Note that a fluid pressure cylinder may be used as a drive source for moving the striker 49 up and down without using the motor, the crankshaft 45, and the like.

The lower frame 1 in the gap G
1, a fixed center table 51 is provided on the left side of the center table 51.
Left and right movable tables 53L and 53R are provided on the middle upper and lower sides (movable in the Y axis direction (left and right directions in FIGS. 3 and 4)) along guide rails (not shown).

At the left end (left side in FIG. 3) of the left and right movable tables 53L and 53R, there is provided a carriage base 55 which is connected across the center table 51 and is attached to the left column 7. The rotation and positioning of the Y-axis ball screw 59 connected to the Y-axis motor 57 in the Y-axis direction. The carriage base 55 is provided with a carriage 61 which is movable in the X-axis direction (vertical direction in FIG. 4), and a plurality of work clamps 63 are provided on the carriage 61 so as to be adjustable in interval. The X-axis carriage 61 is moved in the X-axis direction by an X-axis ball screw 67 connected to an X-axis motor 65.
Positioned. Note that an NC device 69 as a control device is provided near the turret punch press 1.

FIG. 1 shows a mold recognition apparatus 7 according to the present invention.
1 is shown. Referring to FIGS. 1, 3, and 4, in the mold checking device 71, a portion above the large-diameter lower turret 11 that protrudes from the small-diameter upper turret 25 (for example, a ceiling of the upper frame 5). In addition, a die recognition camera 73 as a die recognition imaging unit is provided facing downward. Thus, the die D stored in the lower turret 11 can be imaged without being disturbed by the upper turret 25.

On the other hand, a punch recognizing camera 75 as a punch recognizing image pickup means for confirming the punch P mounted on the upper turret 25 is provided at a position below the lower turret 11 in an upward direction. This punch recognition camera 7
Reference numeral 5 is provided immediately below the punch P to be recognized, and recognizes the punch P through a transmission hole 77 provided in the lower turret 11.

Referring to FIG. 2 as well, the transmission hole 77 is provided with a die D which is exposed from just below the upper turret 25 to the outside.
And the same number as the radius of the lower turret 11 from the rotation shaft 13 and the number of the punches P in the circumferential direction.

With the above configuration, when the punch P and the die D are recognized, the upper turret 25 and the lower turret 11 are rotated synchronously by driving the drive motor 43. The transmission hole 77 is indexed and fixed so as to be located directly above the punch recognition camera 75. The punch P is imaged by the punch recognition camera 75, and the desired die D is positioned immediately below the die recognition camera 73. The die D is captured by the die recognition camera 73.

From the above results, the die D mounted on the lower turret 11 is imaged by the die recognizing camera 73, and the punch recognizing camera 75 is connected to the upper turret through the transmission hole 77 provided in the lower turret 11. Since the image of the punch P mounted on the mold 25 is captured, the management of the mold can be easily performed, and the mistake of the mold can be checked in advance. Along with this, it is possible to prevent the occurrence of mold damage, mechanical damage, product failure, and the like.

Moreover, the upper turret 25 and the lower turret 11
Are rotated in synchronization with each other, so that the punch P and the die D
Recognition for punch 75, die recognition camera 7
3 can be performed at the same time, the recognition can be further accelerated, and the setup time for die search and polishing can be shortened.

The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes.

[0028]

As can be understood from the embodiments of the invention as described above, according to the first aspect of the present invention, the recognition of the die is performed on the side opposite to the processing position of the lower turret having a larger diameter than the upper turret. This can be performed by taking an image of the exposed die that has been indexed at the position with the die recognition imaging means provided at the upper position. In addition, the punch is recognized at a lower position through a transmission hole formed in a lower turret indexed corresponding to a position immediately below the punch of the upper turret indexed to a position opposite to the processing position. This can be performed by taking an image with the provided punch recognition imaging means.

Therefore, even if a mistake in setting the die of the punch and the die occurs by hand, automatically before the machining, based on the image picked up by the punch and die recognizing imaging means, inside the machine. Can be prevented in advance to prevent mold damage, mechanical damage, product failure, and the like.

According to the second aspect of the present invention, the upper turret and the turret are synchronized and driven to rotate,
Recognition of the punch and the die is performed by simultaneously capturing the image of the punch and the die by the image capturing means for punch and die recognition. Thus, the punch and the die can be recognized more quickly. Thus, it is possible to shorten the setup time for searching for a mold, polishing, and the like.

[Brief description of the drawings]

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

FIG. 2 is a plan view showing an upper turret and a lower turret used in FIG.

FIG. 3 is a front view showing a turret punch press provided with the mold recognition device according to the present invention.

FIG. 4 is a plan view showing a turret punch press provided with the mold recognition device according to the present invention.

[Explanation of symbols]

 1 Turret Punch Press 11 Lower Turret 25 Upper Turret 73 Die Recognition Camera (Die Recognition Imaging Means) 75 Punch Recognition Camera (Punch Recognition Imaging Means) 77 Transmission Hole P Punch D Die R Processing Position

Claims (2)

[Claims] 1. A punch mounted on an upper turret and a die mounted on a lower turret are indexed to a processing position in correspondence with each other.
A turret punch press for performing a punching process on a work by cooperation of the punch and the die, wherein a lower turret is mounted so that at least a die mounted on the lower turret is exposed from the upper turret on the opposite side of the processing position. Is larger in diameter than the upper turret, and is provided with a die-recognition imaging means at a position above the exposed die mounted on the lower turret, and a position immediately below a punch mounted at a position opposite to a processing position on the upper turret. A transmission hole is formed at the position of the lower turret corresponding to, and an imaging means for punch recognition is provided at a position below this transmission hole, and the transmission hole is formed from the rotation center of the lower turret in a circumferential direction with substantially the same diameter as the transmission hole. A turret punch press formed by the number of punches mounted. 2. The apparatus according to claim 1, wherein the upper turret and the lower turret are rotated and driven in synchronization with each other.
The turret punch press described.