JPH08174096A - Punch press - Google Patents

Abstract

PURPOSE: To provide a punch press whose die holding means of plural numbers of a pair of upper and lower turrets, etc., installed on a holding frame are made possible to change a punch and a die at an arbitrary position of the outside of a body frame. CONSTITUTION: This is a punch press 1 to punch a work W by cooperating a punch P and a die D, and a tie rod 11 extending upper and lower directions is installed between an upper frame 9 and a lower frame 5 of the body frame 3. Against this tie rod 11, plural numbers of holding frames 13A, 13B are installed mutually individually and freely rotatably. On this each holding frame 13A, 13B, a pair of upper and lower die holding means 15U, 15D respectively attaching proper numbers of punches P and dies D are installed rotatably.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punch press provided with a plurality of pairs of upper and lower mold holding means.

[0002]

2. Description of the Related Art Conventionally, as an example of a turret punch press, a tie rod extending vertically is provided rotatably between an upper frame and a lower frame in a main body frame, as disclosed in, for example, JP-A-3-238122. It is known that one turret holding frame is rotatably provided on a tie rod, and a pair of upper and lower turrets having a plurality of punches and dies attached to both ends of the turret holding frame are rotatably provided.

[0003]

By the way, in the above-mentioned conventional turret punch press, the tie rod is provided with a rotatable holding frame, and a pair of upper and lower rotatable frames are provided on both sides of the holding frame. Since the turret is provided, a pair of upper and lower turrets provided on one side of the holding frame are indexed and positioned in the main body frame, and a plurality of punches and dies mounted on the upper and lower turrets are arranged. One set of them is positioned at the processing position and the work is punched.

As described above, while punching the work with the punches and dies mounted on the pair of upper and lower turrets provided on one side of the holding frame, it is provided on the other side of the holding frame. The pair of upper and lower turrets are provided at fixed positions outside the main body frame, and punches and dies are exchanged at these positions.

Therefore, there is a problem that the punch and the die can be exchanged only at a place provided at a fixed position outside the main body frame.

An object of the present invention is to enable a plurality of pairs of upper and lower turrets, which are provided on a holding frame, to hold a die holding means, and to perform punch and die exchange at arbitrary positions outside the body frame. To provide a punch press.

[0007]

In order to achieve the above object, the punch press of the invention according to claim 1 is a punch press for punching a work by cooperation of a punch and a die, and an upper frame in a main frame. A vertically extending tie rod is provided between the lower frame and the lower frame, and a plurality of holding frames are rotatably provided to the tie rod independently of each other, and an appropriate number of punches and dies are attached to the respective holding frames. It is characterized in that a pair of upper and lower mold holding means is rotatably provided.

A punch press according to a second aspect of the present invention is characterized in that the main body frame is a C-shaped frame and the holding frame is a swan neck-shaped frame.

[0009]

With the punch press of the invention according to claim 1 as described above, a plurality of holding frames are provided for the tie rods extending vertically between the upper frame and the lower frame of the main body frame. Are rotatably provided independently of each other, and a pair of upper and lower die holding means, each having a suitable number of punches and dies, are rotatably provided on each holding frame. The pair of upper and lower mold holding means provided is positioned in the main body frame, and punching work is performed on the work by the cooperation of the punch and the die mounted on the upper and lower mold holding means.

While the work is punched as described above, the remaining holding frame is positioned at an arbitrary position outside the main body frame, and the punch and die of the upper and lower die holding means are mounted on the holding die. Exchange will take place. Therefore, the position for exchanging the punch and die can be selected regardless of the shape of the punch press.

Further, when the punch press is not in operation, a plurality of holding frames are positioned at arbitrary positions outside the main body frame, and the punches and dies mounted on the upper and lower mold holding means are exchanged. Can be done at the same time.

In the punch press of the invention according to claim 2, since the main body frame is a C-shaped frame and the holding frame is a swan neck-shaped frame, the rigidity of the main body frame is ensured and the material yield is improved. In addition, it is possible to eliminate misalignment or wear of the punch and die mounted on the lower die holding means due to the influence of heat.

[0013]

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

Referring to FIGS. 1 and 2, the punch press 1 is a body frame 3 made of, for example, a C-shaped frame.
It has. This body frame 3 is a lower frame 5,
The column 7 and the upper frame 9 are integrally formed.

Between the lower frame 5 and the upper frame 9 on the opening side of the C-shaped frame 3, a tie rod 11 is provided extending in the vertical direction, and the tie rod 11 is provided.
The upper and lower ends are fixed to the upper frame 9 and the lower frame 5, respectively.

The tie rod 11 is rotatably supported by a plurality of, for example, two holding frames 13A and 13B, which are swan neck-shaped frames, for example. A pair of upper and lower turrets 15U and 15D are rotatably supported on the holding frames 13A and 13B. On the circumferences of the upper and lower turrets 15U and 15D, a plurality of punches P and dies D are mounted facing each other at appropriate intervals. The holding frames 13A and 13B may support not only a turret but also a press die or a bending die as shown in Japanese Patent Laid-Open No. 4-3742.

Although not shown, the upper frame 9 is provided with a ram 19 which is engaged with a crank shaft 17 by a driving motor via a driving member so as to be vertically movable. A striker 21 for hitting the punch P is provided at the lower end of the ram 19.

A moving table 2 is provided on the lower frame 5.
3 is provided, and at the right end of the moving table 23, the Y-axis direction (horizontal direction in FIG. 1) of the plate material (hereinafter referred to as a work) W, the X-axis direction (direction orthogonal to the paper surface in FIG. 1). ) Is provided for the movement positioning device 25.

A carriage base 27 which constitutes a part of the moving positioning device 25 and extends in the X-axis direction is provided slidably in the Y-axis direction together with the moving table 23. Further, the carriage base 27 is provided with a carriage 31 provided with a plurality of work clamp devices 29 for gripping the work W so as to be movable in the X-axis direction.

With the above configuration, the work clamp device 29
The work W clamped by is the carriage base 27,
It is moved in the X-axis and Y-axis directions by the carriage 31 and positioned at the punching processing position.

On the other hand, the crank shaft 17 is rotated by a drive motor (not shown) via a drive member (not shown), and the striker 2 is rotated by a ram 19 engaged with the crank shaft 17.
Move 1 up and down.

When the ram 19 moves up and down, the punch P of the upper turret 15U and the die D of the lower turret 15D supported by the holding frame 13A or 13B cooperate with each other to punch the work W.

As shown in FIG. 3, a rotary shaft 33 extending in the vertical direction is attached to the center of the tie rod 11, and upper and lower rotary shafts 33 have upper and lower frames 9 and 9, respectively. The bearing 35 is rotatably supported by the bearing 35. A T-axis motor 37 provided on the lower frame 5 is connected to, for example, the lower end of the rotary shaft 33.

The rotating shaft 33 has sprockets 39, 4
1 is mounted, and the sprockets 39 and 41 are provided in the holding frames 13A and 13B, respectively. Moreover, the sprockets 39 and 41 are the clutch device 4
The rotation shaft 33 is engaged and disengaged by the action of 3, 45.

Rotating shafts 47, 49 extending in the vertical direction are rotatably supported in the holding frames 13A, 13B, and the sprocket wheels 51, 5 are rotatably supported on the rotating shaft 47.
3, 55 are mounted, and the rotating shaft 49 is mounted with sprockets 57, 59, 61. A chain 63 is wound around the sprocket 39 and the sprocket 51, and a chain 65 is wound around the sprocket 41 and the sprocket 57.

The upper and lower turrets 15U and 15D provided in the holding frame 13A are rotatably supported by the rotating shafts 67 and 69, and the upper and lower turrets 15U and 15D provided in the holding frame 13B. Is the rotating shaft 7
1, 73 are rotatably supported. Rotating shaft 67,6
Sprockets 75, 77, and 9, 71, 73, respectively
79 and 81 are attached.

The aforementioned sprocket 53 and sprocket 77
A chain 83 is wound around and a chain 85 is wound around the sprockets 55 and 75. Similarly, a chain 87 is wound around the sprocket 59 and the sprocket 79, and a chain 89 is wound around the sprocket 61 and the sprocket 81.

With the above structure, when the T-axis motor 37 is driven, the rotary shaft 33 is rotated. The rotation of the rotary shaft 33 is transmitted to the sprocket 39 when the clutch device 43 is turned on, and the rotary shaft 47 is rotated via the chain 63 and the sprocket 51. By the rotation of the rotary shaft 47, the sprocket 55, chain 85, sprocket 75
Since the rotary shaft 67 is rotated via the
The upper turret 15U in 3A will be rotated.
Further, the rotation of the rotary shaft 47 causes the sprocket 5 to rotate.
3, rotation shaft 69 through chain 83 and sprocket 77
Is rotated, the lower turret 15D in the holding frame 13A is rotated.

Similarly, when the clutch device 45 is turned on, the rotation of the rotary shaft 33 is transmitted to the sprocket 41 and the rotary shaft 4 via the chain 65 and the sprocket 57.
9 is rotated. The rotation of the rotation shaft 49 causes the rotation shaft 71 to rotate via the sprocket 59, the chain 87, and the sprocket 79, so that the upper turret 15U in the holding frame 13B is rotated.

The rotation of the rotation shaft 49 causes the rotation shaft 73 to rotate via the sprocket 61, the chain 89, and the sprocket 81, so that the lower turret 15D in the holding frame 13B is rotated.

Therefore, the holding frames 13A, 13B
Each of the upper and lower turrets 15U and 15D provided therein is rotated when the clutch devices 43 and 45 are individually turned on, so that either one of the holding frames 13A and 13B is indexed and positioned in the main body frame 3. It is possible to rotate the upper and lower turrets 15U and 15D at the time of opening.

Gears 91, 93 are integrated with the holding frames 13A, 13B, and the gears 91, 93 are rotatably provided on the tie rod 11 via bearings 95, 97. The lower frame 3 and the upper frame 9 of the main body frame 3 have drive motors 9 respectively.
9, 101 are provided, and the drive motors 99, 1
The output shafts 103 and 105 of No. 01 are equipped with gears 107 and 109. Moreover, the gears 107 and 109 are meshed with the gears 91 and 93.

With the above configuration, the drive motors 99 and 101
Drive the output shaft 103, 105, gear 10
Since the gears 91, 93 are rotated via 7, 109,
The holding frames 13A and 13B are rotated independently of each other with respect to the tie rod 11.

For example, as shown in FIG. 2, when the holding frames 13A and 13B are rotated 90 degrees clockwise in FIG. 2 as indicated by arrows, the upper and lower turrets 15U of the holding frame 13A are rotated. , 15D are positioned in the body frame 3 and the body frame 3
Upper and lower turrets 15U, inside the holding frame 13B,
15D is positioned outside the main body frame 3.

Therefore, in FIG. 2, the main body frame 3
When the holding frames 13A and 13B are positioned on the outside of the main frame 3, the upper and lower turrets 15 in the body frame 3 are positioned.
While punching the work W with U and 15D, many punches P, which are positioned on the outer side of the main body frame 3 and are mounted on the lower turrets 15U and 15D,
The die D can be replaced. As a result, highly productive machining can be performed even when machining is required with a large number of types of punches P and dies D having a complicated shape.

As shown in FIG. 4, for example, the upper and lower turrets 15U and 15D in the holding frame 13B are positioned in the main body frame 3 and punching is performed by the cooperation of the punch P and the die D. Holding frame 1 while
3A is rotated to position the upper and lower turrets 15U and 15D in the holding frame 13A outside the main body frame 3 at arbitrary positions outside the main body frame 3 as shown in positions of solid lines, dotted lines or two dotted lines, for example. Therefore, it is possible to select the exchange position of the punch P and the die D regardless of the shape of the punch press 1.

Further, as shown in FIG. 5, the holding frames 13A and 13B are rotated to move the holding frame 13
Upper and lower turrets 15 provided in A and 13B
Since the U and 15D can be positioned at arbitrary positions outside the main body frame 3, the upper and lower turrets 1 can be positioned when the punch press 1 is not in operation.
Many punches P and dies D mounted on 5U and 15D
Can be exchanged at the same time.

By making the main body frame 3 into a C-shaped frame and the holding frames 13A and 13B into a swan neck shape, the rigidity of the main body frame 3 can be ensured, the yield of the material can be improved, and the influence of heat etc. As a result, misalignment or wear of the punch P and die D mounted on the upper and lower turrets 15U and 15D can be eliminated.

The present invention is not limited to the above-mentioned embodiments, but can be implemented in other modes by making appropriate changes.

[0040]

As can be understood from the above description of the embodiments, according to the invention of claim 1, a tie rod is provided extending vertically between the upper frame and the lower frame of the main body frame. On the other hand, a plurality of holding frames are rotatably provided independently of each other, and a pair of upper and lower die holding means, each having a plurality of punches and dies attached thereto, are rotatably provided. , For example a pair of tops on one holding frame,
The lower mold holding means is positioned in the body frame,
While the work is being punched by the cooperation of the punch and the die attached to the upper and lower mold holding means, the remaining holding frame is positioned at an arbitrary position outside the main body frame, The punch and die mounted on the lower die holding means can be replaced. Therefore, the position for exchanging the punch and die can be selected regardless of the shape of the punch press.

When the punch press is not in operation, a plurality of holding frames are positioned at arbitrary positions outside the main body frame and the punches and dies mounted on the upper and lower mold holding means are replaced at the same time. It can be carried out.

According to the second aspect of the present invention, since the main body frame is the C-shaped frame and the holding frame is the swan neck-shaped frame, the rigidity of the main body frame is ensured and the material yield is improved. It is possible to eliminate the core misalignment or wear of the punch and die mounted on the lower die holding means due to the influence of heat and the like.

[Brief description of drawings]

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

FIG. 2 is a plan view of FIG.

FIG. 3 is an enlarged view of an arrow III portion in FIG.

FIG. 4 is an explanatory diagram illustrating an operation of the present invention.

FIG. 5 is an explanatory diagram explaining the operation of the present invention.

[Explanation of symbols]

1 Turret punch press 3 Body frame (C-shaped frame) 5 Lower frame 9 Upper frame 11 Tie rod 13A, 13B Turret holding frame (Swan neck shape frame) 15U Upper turret 15D Lower turret P Punch D Die W work

Claims (2)

[Claims] 1. A punch press for punching a work by cooperation between a punch and a die, wherein a tie rod extending vertically is provided between an upper frame and a lower frame of a main body frame, and the tie rod is provided with respect to the tie rod. A plurality of holding frames are rotatably provided independently of each other, and a pair of upper and lower mold holding means, each having a suitable number of punches and dies, are rotatably provided on each holding frame. Punch press. 2. The punch press according to claim 1, wherein the main body frame is a C-shaped frame, and the holding frame is a swan neck-shaped frame.