JPH0753779Y2 - Turret punch press with die index mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a turret punch press, and in particular, a punching die having directivity is set in a predetermined rotational orientation with respect to a turret disk. The present invention relates to a turret punch press having a die index mechanism for

(Prior Art) A turret punch press provided with a die index mechanism for setting a directional punched die in a predetermined rotational orientation relative to a turret disk has been proposed. Sho-58-44924, Japanese Patent Fair 1-38570
It is shown in each publication of the issue.

The die index mechanism of the turret punch press as described above includes a rotary drive shaft rotatably attached to the turret disk, and a drive gear rotationally driven by the rotary drive shaft, for example, a worm attached to the rotary drive shaft. ,
An index mold holder rotatably supported on one side of the worm from the turret disk about its own central axis, and an index mold holder attached to the index mold holder and meshed with the worm to form the index mold holder. A driven gear such as a worm wheel that is rotationally driven,
A first rotary connection member provided on the main body side of the turret punch press and drivingly connected to the rotary drive shaft to apply a rotational force to the rotary drive shaft when the turret disk is in a predetermined rotation phase, and a servo for rotationally driving the first rotary connection member. And a rotation connecting member on the main body side is drivingly connected to the rotary drive shaft on the turret disk when the turret disk is in the first rotation phase, and the rotational force of the servo motor is rotationally connected. It is transmitted to the rotary drive shaft through the member, and the index mold holder rotates around its own central axis by the rotation of the worm of the rotary drive shaft, and the mounting direction posture of the mold mounted on this index mold holder with respect to the turret disk is adjusted. It is supposed to do.

(Problems to be solved by the invention) As the number of index die holders installed on one turret disc increases, the versatility of the turret punch press improves, but a dedicated rotary drive means for each index die holder. Is provided, the mechanism becomes complicated, and in practice, this is often impossible in terms of space.

On the other hand, it is conceivable that index mold holders are arranged on both sides of one worm of the rotary drive shaft on the turret disk, and the index mold holders on both sides of this are driven to rotate by one worm. In this case, the number of rotary drive shafts does not increase, which is practical, but the index mold holders on both sides of the worm do not rotate in opposite directions when the rotary drive shaft rotates in one direction. Therefore, it becomes necessary to control the rotation direction in addition to the rotation amount of the rotation drive shaft for each index mold holder used, which complicates the machining program in numerical control etc. Cause

In view of the above-mentioned problems, the present invention requires control of the rotational direction of both index gear holders provided on both sides of a drive gear such as a worm provided on one rotary drive shaft. It is an object of the present invention to provide a turret punch press with a die indexing mechanism that can bring it to a predetermined rotational position only by controlling the amount of rotation without doing so.

[Means for Solving the Problems] (Means for Solving the Problems) According to the present invention, a rotary drive shaft rotatably attached to a turret disk and a drive rotationally driven by the rotary drive shaft are provided. A gear, an index die holder rotatably supported by the turret disk around its own central axis at both sides of the drive gear, and both sides of the drive gear attached to each of the index die holders. Driven gears that are individually meshed with each other to individually rotate and drive the index die holders, and the rotation drive shaft when the turret disk provided in the main body side of the turret punch press is in the first rotation phase. The first rotation connecting member that is drivingly connected to apply a rotation force to the rotation drive shaft and the turret disk rotate a predetermined angle from the first rotation phase. The first rotation connecting member includes a second rotation connecting member that is drivingly connected to the rotation driving shaft and applies a rotational force to the rotation driving shaft when in the displaced second rotation phase. The second rotary connection member includes a rotation drive device that includes a rotation direction reversing gear pair in the middle of the second rotation connection member and that applies a rotation force in a second rotation direction opposite to the first rotation direction. It is achieved by a turret punch press with a die indexing mechanism.

(Operation) According to the configuration as described above, when one of the index die holders is rotationally driven, a rotational force is applied to the rotary drive shaft from the first rotary connecting member while the turret disk is in the first rotational phase. On the other hand, when the other index die holder is rotationally driven, when the turret disk is in the second rotational phase, a rotational force is applied to the rotational drive shaft by the second rotary connecting member, so that the rotary drive such as a servomotor is driven. The index mold holders on both sides of one driving gear rotate in the same direction without reversing the rotation direction of the source.

(Embodiment) An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 6 shows a general structure of a turret punch press suitable for incorporating the die index mechanism according to the present invention. The turret punch press has a body frame 1 having a gate shape or the like, and an upper turret disc 3 and a lower turret disc 5 are rotatably attached to the body frame 1. The upper turret disk 3 has a punch 7,
Dies 9 are attached to the lower turret disks 5,
The punch 7 and the die 9 are selectively brought directly below the striker 11 by the rotation of the upper turret disc 3 and the lower turret disc 5, whereby the striker 11
The punch press work is performed in cooperation with each other at a position directly below.

A work table 13 and a carriage base 15 that are movable in the left-right direction in the figure on the main body frame 1, a carriage 17 that is movably mounted on the carriage base 15 in a direction orthogonal to the paper surface, and a work clamp that is mounted on the carriage 17. Means 19 are provided to move the plate-like work W in a plane.

Each of the upper turret disc 3 and the lower turret disc 5 is provided with a die index mechanism as shown in FIGS. 1 to 5.

Next, the mold index mechanism according to the present invention will be described with reference to FIGS. 1 to 5. Upper turret disc 3
The first index mold holder 21 and the second index mold holder 21 at four positions on both sides of one axis extending across the center of the upper turret disk 3 about the center of rotation of the upper turret disk 3 respectively. Index mold holder 23
The third index die holder 25 and the fourth index die holder 27 are rotatably supported by the upper turret disk 5 around their own central axes. first~
The fourth index die holders 21 to 27 hold punches 29, respectively.

A rotation drive shaft 33 is attached to the upper turret disk 5 by a bearing bracket 31 so as to be rotatable about its own center axis, that is, the axis. Rotary drive shaft
The first worm 35 and the second worm are located near both ends of 33, respectively.
37 and 37 are provided integrally with each other.

The first index mold holder 21 and the third index mold holder 25 are arranged on both sides of one worm 35, while the second index mold 23 and the fourth index mold 27 are different from each other. It is located on both sides of the worm 37. Worm wheels 39, 41, 43, 45 are integrally attached to the outer periphery of each of the first to fourth index die holders 21 to 27, and the worm 39 and the third index of the first index die holder 21 are attached. Mold holder 21 worm
43 and 43 are individually meshed on both sides of one worm 35, and the worm wheel 41 of the second index mold holder 23 and the worm wheel 45 of the fourth index mold holder 27 are connected to the other worm 37. They are individually meshed on both sides.

The rotary drive shaft 33 is aligned with the outer peripheral edge of the upper turret disk 5 at both ends, and a first engaging portion 47 and a second engaging portion 49 to which a rotational force is applied are provided at both end portions thereof. ing.

In the main body frame 1, when the upper turret disc 3 is in the rotation phase (first rotation phase) as shown in FIG.
(See the drawing), the first rotation connecting member 51 selectively drivingly connected to either the first engagement portion 47 or the second engagement portion 49 of the rotation drive shaft 33 in a rotational force transmission relationship, and the upper turret. When the disk 3 is in the second rotational phase as shown in FIG. 3, which is rotationally displaced from the first rotational phase by a predetermined angle,
Alternatively, when in a rotational phase 180 ° rotationally displaced (see FIG. 4), it is selectively driven in a rotational force transmission relationship with either the first engaging portion 47 or the second engaging portion 49 of the rotary drive shaft 33. The second rotation connecting member 53 to be connected is provided. The first rotary connecting member 51 and the second rotary connecting member 53 are individually rotatably supported by the drive shafts 55 and 57 at different positions around the upper turret disc 3 by the drive shafts 55 and 57. .

The main body frame 1 is provided with one servo motor 59 for collectively driving all index die holders, and the output gear 63 provided on the output shaft 61 of the servo motor 59 has a fifth As well shown in the figure, the index die holder provided on the lower turret 7, which is not shown in the figure, simultaneously with the gear 65 for giving a rotational force to the index die holder on the upper turret 3 side. A gear 67 for giving a rotational force to the other side is simultaneously meshed on the opposite sides.

A belt wheel 71 and a gear 73 are provided on a gear shaft 69 of the gear 65, and the gear 73 meshes with a gear 75 attached to the drive shaft 55. An endless belt 79 is stretched between the belt wheel 71 and a belt wheel 77 attached to another gear shaft 76, and the rotation of the gear shaft 69 is transmitted to the other gear shaft 76 in the same rotation direction. It is supposed to do. A bevel gear 81 is attached to the gear shaft 76, and the level gear 81 meshes with the bevel gear 85 of the intermediate gear shaft 83. A gear 87 is attached to the intermediate gear shaft 83, and the gear 87 meshes with a gear 89 attached to the drive shaft 57.

Therefore, rotation of the servomotor 59 in one direction causes the drive shaft 5 to rotate.
5, in other words, given to the first rotary connection member 51 as a rotational force in the first rotational direction, the other drive shaft 5
7, in other words, it is applied to the second rotary connection member 53 as a rotational force in the second rotational direction opposite to the first rotational direction.

In the above structure, the first index mold holder
When using 21, the upper turret disk 3 is brought to the first rotational phase position as shown in FIG. 1, and the rotary drive shaft 33 is drive-connected to the first rotary connecting member 51 by the first engaging portion 47. Then, the rotational force in the first direction is applied to the rotary drive shaft 33 from the first rotary connection member 51. At this time, the rotation drive shaft 33 rotates in the first rotation direction, so that the first index mold holder 21 rotates about its own central axis, for example, in the clockwise direction.
As a result, the index of the first index die holder 21 is indexed, and it becomes ready for processing.

When the second index die holder 23 is used, the upper turret disk 3 is rotationally displaced by 180 ° from that when the first index die holder 21 is used to bring it to the rotational phase position as shown in FIG. Shaft 33 is the first engaging part
Instead of 47, the second engaging portion 49 is drivingly connected to the first rotary connecting member 51 in a rotational force transmitting relationship. At this time, a rotational force in the first rotational direction is applied to the rotary drive shaft 33 from the first rotary connection member 51, whereby the second index mold holder 23 is in the same direction as the case of the first index mold holder 21,
That is, it comes to rotate in the clockwise direction, and the angle is indexed.

When the third index mold holder 25 is used, the upper turret disk 5 is rotated by a predetermined angle from the time of using the first index mold holder 21 as shown in FIG. 1, that is, the first rotation phase position. The displacement is moved to the second rotational phase position as shown in FIG. 3, and the first engaging portion 47 of the rotary drive shaft 33 is replaced with the first rotational connecting member 51 and rotated with the second rotational connecting member 53. Drive connection is made in a force transmitting relationship, and a rotational force is applied to the rotary drive shaft 33 from this. Rotating connection member 53
If the rotation direction of the servo motor 59 is unchanged, the rotation drive shaft 33 is rotating in the second rotation direction opposite to the rotation direction of the first rotation connecting member 51. It is driven to rotate in the second rotation direction opposite to the direction. As a result, the third index mold holder 25 rotates in a direction opposite to the rotation direction of the first index mold holder 21 at this time, that is, in the clockwise direction, and the angle is indexed.

When the fourth index mold 27 is used, as shown in FIG. 3, the upper turret disc 3 in the second rotation phase is rotationally displaced by 180 ° from this, and as shown in FIG. The rotary drive shaft 33 is drivingly connected to the second rotary connecting member 53 in a rotational force transmitting relationship with the second engaging portion 49. As a result, the rotary drive shaft 33 is rotationally driven in the second rotational direction,
This rotation causes the fourth index mold holder 27 to rotate in a direction opposite to the rotation direction of the second index mold holder 25 at this time, that is, in the clockwise direction.

From the above description, which index mold holder 21,
Even when indexing 23, 25, and 27, the index mold holders 21, 23, 25, and 27 can be rotated around their own center axes on the turret disk without changing the rotation direction of the servo motor 59. It will rotate in the same direction.

When the upper turret disc 3 is rotated and a mold station other than the index mold holder is used, the first rotary connecting member 51 and the second rotary connecting member 52 are both engaged by the first and second engagement of the rotary drive shaft 33. Separated from parts 47 and 49. This separation structure is engaged and disengaged by the rotation of the turret disc,
Alternatively, each of the first rotary connecting member 51 and the second rotary connecting member 53 may be individually moved in the axial direction by a fluid pressure cylinder device (not shown).
If a detailed explanation of these matters is required, refer to JP-A-58-44924 or JP-B-1-38570.

In the above description, the upper turret disc 3 has been described, but these structures are also configured similarly to the lower turret disc 5, and this works in the same way as that of the upper turret disc 3. Omit it.

In the above, the present invention has been described in detail with reference to specific embodiments, but the present invention is not limited to this.
It will be apparent to those skilled in the art that various embodiments are possible within the scope of the invention.

[Effects of the Invention] As is apparent from the above description of the embodiments, in the turret punch press with a die index mechanism according to the present invention, the turret disk is the first when the one index die holder is rotationally driven. A rotational force is applied to the rotary drive shaft from the first rotary connecting member in the rotational phase, and when the other index mold holder is rotationally driven, the second force is applied when the turret disk is in the second rotational phase. The index connecting die holders on both sides of one drive gear rotate in the same direction without the rotation direction of a rotary drive source such as a servomotor being reversed by the rotational force being applied to the drive shaft by the rotary connection member. As a result, the rotation position control of all index die holders can be performed by the rotation amount control without the need to control the rotation direction. Only then will it be easier to do.

[Brief description of drawings]

FIG. 1 is a plan view showing an upper turret portion of a turret punch press with a die indexing mechanism according to the present invention, and FIGS. 2 to 4 show different working positions of the upper turret shown in FIG. 1, respectively. FIG. 5 is a plan view, FIG. 5 is a view taken in the direction of arrow V in FIG. 1, and FIG. 6 is an overall view showing a general structure of a turret punch press suitable for incorporating a die index mechanism according to the present invention. 1 …… Main body frame 3 …… Upper turret disc 5 …… Lower turret disc 21,23,25,27 …… Index mold holder 33 …… Rotation drive shaft 35,37 …… Worm 39,41,43,45… … Worm wheel 51 …… First rotation connecting member 53 …… Second rotation connecting member 59 …… Servo motor

Claims (1)

[Scope of utility model registration request] 1. A rotary drive shaft rotatably mounted on a turret disc, a drive gear rotatably driven by the rotary drive shaft, and a turret disc around its own central axis at both sides of the drive gear. And an index die holder rotatably supported on each of the index die holders, and a follower that is attached to each of the index die holders and individually meshes with each other on both sides of the drive gear to individually rotate and drive the index die holders. A turret and a gear and a first rotary connecting member which is provided on the main body side of the turret punch press and is drivingly connected to the rotary drive shaft to apply a rotational force to the rotary drive shaft when the turret disk is in the first rotational phase. When the disk is in the second rotational phase which is rotationally displaced by a predetermined angle from the first rotational phase, the disk is drivingly connected to the rotary drive shaft, and A second rotation connecting member for applying a rotation force to the rolling drive shaft, for applying a rotation force in the first rotation direction to the first rotation connection member, and for reversing the rotation direction in the middle to the second rotation connection member. A turret punch press with a die index mechanism, comprising: a rotation drive device that includes a pair of gears and applies a rotational force in a second rotation direction opposite to the first rotation direction.