JP2539507Y2 - Turret punch press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention] (Industrial application field) The present invention relates to a turret punch press that can move and position a plate at a processing position without relatively damaging the plate.

(Prior Art) A conventional turret punch press will be described. A pair of movable tables having substantially the same height as the fixed table are disposed on the left and right sides of the fixed table, and the movable table is movable in the front-rear direction. is there. A carriage base constituting a part of a positioning device for positioning a plate material is integrally attached to the movable table, and a clamp device for gripping the plate material is attached to this carriage base.

Further, a lower turret provided with a plurality of dies detachably via a die holder is disposed on the rear side of the fixed table, and the height position of the lower turret is substantially the same as the height position of the fixed table. When the movable table moves backward, the diameter of the lower turret is smaller than the left and right widths of the fixed table so that the movable table and the lower turret do not interfere with each other. In other words, the left and right widths of the fixed table are at least larger than the diameter of the lower turret, and the fixed table has to be necessarily enlarged.

According to the above configuration, after the plate is gripped by the clamp device, the carriage base and the movable table are moved in the front-rear direction, and the carriage is moved in the left-right direction, so that the plate is moved to a predetermined position (processing position) on the lower turret. Can be moved and positioned.

(Problems to be Solved by the Invention) However, in the conventional turret punch press as described above, since the lower turret is provided at substantially the same height as the fixed table, when the plate is moved and positioned, the plate is not moved. It moves back and forth and left and right on the die attached to the lower turret. Therefore, there was a problem that the plate material was damaged. Further, when the lower turret is rotated in a state where the plate material is located on the lower turret, the same problem occurs.

In addition, since the fixed table is large, a problem that the plate material is damaged when moving on the fixed table back and forth and in the left-right direction has become remarkable.

Therefore, an object of the present invention is to provide a turret punch press capable of performing appropriate punching without relatively damaging a plate material in order to solve the above problems.

[Structure of the Invention] (Means for Solving the Problems) The present invention has been made in view of the conventional problems as described above, and the invention according to claim 1 has an upper turret supporting a plurality of punches, The lower turret is provided with a lower turret supporting a plurality of dies corresponding to the punches so as to be horizontally rotatable vertically facing each other and horizontally supporting a plate material processed by the punch and the dies. A carriage provided with a clamping device for gripping the plate material is provided on a carriage base movable in the front-rear direction integrally with the left and right movable tables disposed on the left and right sides of the fixed table. In a turret punch press movably provided, the upper surface of the lower turret is provided lower than the upper surfaces of the fixed table and the movable table. A die holder provided on the lower turret is provided to support the die so as to be vertically movable, and the die positioned at the processing position by the rotation of the lower turret is positioned at the same height as the fixed table and the movable table during the processing of the plate material. And a holder elevating device for positioning the holder.

The invention according to claim 2 is the invention according to claim 1, wherein the upper surface of the lower turret is provided lower than the lower surface of the movable table, and the left and right width of the fixed table is the largest die holder provided in the lower turret. It is provided larger than the left and right width.

(Operation) In the above configuration, the plate member is supported by the fixed table and the movable table. Then, the plate is moved to the predetermined position at a position vertically above the lower turret by moving the plate in the front, rear, left and right directions. At this time, the movable table moves in the front-rear direction integrally with the plate material. Further, since the lower turret is provided at a height lower than the height of the movable table and the fixed table, the plate material does not move by rubbing the die on the lower turret. In particular, the lower turret
When the height position of the upper surface is provided lower than the height position of the lower surface of the movable table, the movable table does not interfere with the lower turret even if the movable table moves in the front-back direction. Things.

In addition, the lower turret is rotated to position a predetermined die at the processing position. At this time, the lower turret does not interfere with the plate material.

Then, the predetermined die holder is raised by appropriately operating the holder lifting device to position the predetermined die at the same height position as the fixed table. At this time, even when the vicinity of the rear end of the movable table is located vertically above the lower turret, the left and right widths of the fixed table are provided at least larger than the maximum left and right widths of the die holder located at the processing position. Thus, the movable table and the predetermined die holder do not interfere with each other.

Thus, the preparation for performing the punching is completed.

(Embodiment) The embodiment according to the present invention will be described with reference to the drawings.

Referring to FIG. 1 and FIG. 4, the turret punch press 1 has support columns 5 and 7 integrally standing up and down (up and down in FIG. 1, left and right in FIG. 4) of the lower frame 3, and The upper frame 9 is provided on the columns 5, 7 to form a frame.

On the upper surface of the lower frame 3, there is provided a fixed table 11 for movably supporting the plate material W.
A pair of movable tables 13 at the same height position as the fixed table 11 are disposed on both sides of the left and right sides (the left and right sides in FIG. 1 and the front and back sides in FIG. 4) of FIG. The movable table 13 is movable in the front-rear direction via the rail 15, and the width of the fixed table 11 on the left and right is smaller than the width of the movable table 13 on the left and right.
It is smaller than 13.

The fixed table 11 is provided with a plurality of free bearings 17 for rotatably supporting the plate material W.
13 is provided with a number of rollers 19 for supporting the work W movably in the left-right direction. The roller 19 is made of, for example, resin or the like, and since the plate 19 is supported by the roller 19 in a line contact state, the plate W is relatively unlikely to be damaged. Further, the free bearing 17 is not necessarily provided.

A movement positioning device 21 is provided for performing movement positioning of the plate material W on which punching is performed. More specifically,
A carriage base 23 of the moving positioning device 21 is integrally attached to the movable table 13, and a second carriage 27 having a clamp device 25 for gripping the plate material W is movable on the carriage base 23 in the left-right direction. It is provided in.

A disk-shaped upper turret 29 is rotatably provided on the upper frame 9 via a rotation shaft 31.
A lower turret 33 vertically facing the upper turret 29 is rotatably provided via a rotating shaft 35. The upper and lower turrets 29 and 33 are synchronously rotated by a predetermined angle in the same direction by appropriately operating a rotating device (not shown) such as a servomotor.

The lower turret 33 is provided so that the upper surface is lower than the lower surfaces of the fixed table 11 and the movable table 13.

The upper turret 29 is provided with a punch holder (not shown) for holding a plurality of punches 37, and the lower turret 33 is provided with a die holder 41 for holding a plurality of dies 39 in a detachable and vertically movable manner. is there. The processing portions of the vertically opposed punch 37 and die 39 have the same shape. In order to perform punching by the pair of vertically opposed punches 37 and die 39, a ram 43 is moved up and down on the upper frame 9. It is provided freely.

When the predetermined die 39 is positioned at the processing position (vertical lower position of the ram 43) by the rotation of the lower turret 33, the predetermined frame 39 is raised to the same height position as the fixed table 11, A holder elevating device 45 as shown in FIGS. 2 and 3 is provided at an appropriate position.

More specifically, a lower wedge member 47 is fixedly provided at an appropriate position of the lower frame 3, and an upper wedge member 49 for contacting the lower surface of the die holder 41 and pushing up the die holder 41 is provided.
The lower wedge member 47 is provided movably in the left-right direction. In order to move the upper wedge member 49 in the left-right direction, a hydraulic cylinder 51 is provided at an appropriate position on the lower frame 3 so as to be swingable in the vertical direction. The piston rod 53 is connected to the upper wedge member 49.

Even when the vicinity of the rear end of the movable table 13 is positioned vertically above the lower turret 33, the fixed table 11
Are larger than the maximum left and right widths of the die holder 41 located at the processing position, so that when the die holder 41 is raised, the die holder 41 and the movable table 13 do not interfere with each other.

The operation of the present embodiment will be described based on the above configuration.

The plate material W is supported by the fixed table 11 and the movable table 13. Then, the front end of the plate material W is gripped by the clamp device 25.

Next, by moving the movable table 13 and the carriage base 23 in the front-rear direction and the carriage 27 in the left-right direction, the plate material W is moved and positioned at a predetermined position vertically above the lower turret 33. At this time, the lower turret 33 is moved to the movable table 13, the fixed table 11
, The plate material W does not move in contact with the die 39 on the lower turret 33. Further, since the upper surface of the lower turret 33 is provided lower than the height position of the lower surface of the movable table 13, the movable table 13 and the lower turret 33 do not interfere with each other.

Further, the upper turret 29 and the lower turret 33 are rotated synchronously to position the predetermined punch, 27 and die 39 at the processing position. Also at this time, the lower turret 33 does not interfere with the plate material W.

Then, the upper wedge member 49 is moved leftward through the fluid pressure cylinder 51 to be raised, whereby the upper wedge member 49 is moved upward.
As a result, the predetermined die holder 41 is raised and the predetermined die 39 is located at the same height position as the fixed table 11 and the movable table 13.

Finally, by lowering the ram 43, a predetermined punch 37 is pressed, and a desired punching process is performed by the predetermined punch 37 and the die 39.

According to the present embodiment, the lower turret 33 is
When performing punching, the predetermined die 39 is raised via the holder lifting / lowering device 45 to raise the predetermined die 39 to the same height as the fixed table 11 and the movable table 13. The plate material W does not move in contact with the die 39 on the lower turret 33 when moving and positioning the plate material W because the plate material W is moved even when the lower turret 33 is rotated. It does not interfere with.

Therefore, the plate material W does not have a flaw caused by moving and contacting the die 39 on the lower turret 33 or rotating the lower turret 33 as in the related art, and performs an appropriate punching process on the plate material W. Is what you can do.

Further, by providing the lower turret 33 such that the upper surface is lower than the lower surface of the movable table 13, even if the movable table 13 moves in the front-back direction, the movable table 13 and the lower turret 33 may interfere with each other. Therefore, the left and right widths of the fixed table 11 can be made as small as possible, and can approach the maximum left and right widths of the die holder 41 located at the processing position. Therefore, the size of the fixed table 11 can be reduced as much as possible.
The plate material W has relatively few scratches due to the movement of the plate material W on the upper surface 11, so that the plate material W can be appropriately punched.

Note that the present invention is not limited to the description of the above-described embodiment, and can be implemented in various other modes by making appropriate changes.

[Effects of the Invention] As can be understood from the description of the embodiment as described above, the invention according to claim 1 basically comprises an upper turret (29) supporting a plurality of punches (37) and each of the punches (37). Lower turret (33) supporting multiple dies (39) corresponding to
The lower turret (11) is provided with a fixed table (11) which is rotatably mounted horizontally so as to face vertically and supports a plate (W) processed by the punch (37) and the die (39) so as to be movable horizontally. 33), and is provided in front of the fixed table (11).
A clamp device (2) for gripping the plate (W) is provided on a carriage base (23) movable in the front-rear direction integrally with 3).
In a turret punch press in which a carriage (27) having 5) is provided so as to be movable in the left-right direction, the upper surface of the lower turret (33) is higher than the upper surfaces of the fixed table (11) and the movable table (13). A die holder (41) provided on the lower turret (33) is provided so as to be vertically movable to support the die (39), and the die (3) positioned at the processing position by the rotation of the lower turret (33).
9) to the fixed table (1) when processing the plate (W).
A holder lifting / lowering device (45) for positioning at the same height position as 1) and the movable table (13) is provided.

According to a second aspect of the present invention, in the first aspect, the upper surface of the lower turret (33) is fixed to the movable table (13).
And the left and right width of the fixed table (11) is larger than the left and right width of the largest die holder (41) provided in the lower turret (33).

As is apparent from the above configuration, in the invention according to claim 1, the upper surface of the lower turret 33 is provided lower than the upper surfaces of the fixed table 11 and the movable table 13, and the die 39 is attached to the fixed table 11 and the movable table 13. Die holder that supports the die 39 so that it is positioned at the same height as
41 is provided so as to be movable up and down, and a holder elevating device for elevating and lowering the die holder 41 at the time of processing the plate material W is provided.

Therefore, when the plate material W moves in the front, rear, left and right directions above the lower turret 33, the plate material W does not come into contact with the die 39 supported by the lower turret 33.
And the plate material W is not scratched by the rubbing.

When the plate material W is processed, the die holder 41 is raised by the operation of the holder elevating device 45, and the die 39 is positioned at the same height position as the fixed table 11 and the movable table 13. The same processing can be performed as usual without curving.

In the invention according to claim 2, since the movable table 13 is provided with the upper surface of the lower turret 33 lower than the lower surface, the movable table 13 can be located above the lower turret 33. Since the left-right width is larger than the left-right width of the largest die holder 41, the left-right width of the fixed table 11 can be made as small as possible, and the number of free bearings 17 on the fixed table 11 is reduced. It is possible to suppress the occurrence of scratches and the like due to relative sliding between the free bearing 17 and the plate material W.

[Brief description of the drawings]

The drawings show an embodiment according to the present invention, and FIG. 1 is a schematic view taken along line II in FIG. FIG. 2 is a diagram showing a main part of the present embodiment. FIG. 3 is a diagram for explaining the operation of the holder elevating device. FIG. 4 is a side view of the turret punch press. DESCRIPTION OF SYMBOLS 1 ... Turret punch press 11 ... Fixed table, 13 ... Movable table 33 ... Lower turret, 39 ... Die 41 ... Die holder, 45 ... Holder elevating device

Claims (2)

(57) [Scope of request for utility model registration] An upper turret (29) supporting a plurality of punches (37) and a lower turret (33) supporting a plurality of dies (39) corresponding to the punches (37) are vertically opposed. The punch (37) and the die (3
The fixed table (11) that supports the plate (W) processed by 9) so as to be able to move horizontally is used as the lower turret (33).
The plate member (W) is provided on a carriage base (23) which is provided in front of the fixed table (11) and is movable in the front-rear direction integrally with the left and right movable tables (13) disposed on the left and right sides of the fixed table (11). In a turret punch press in which a carriage (27) having a clamp device (25) for gripping is provided so as to be movable in the left-right direction, the upper surface of the lower turret (33) is brought into contact with the fixed table (11) and the movable table (13). )
And a die holder (41) provided on the lower turret (33) so as to support the die (39) so as to be vertically movable. The die holder (33) is positioned at a processing position by rotation of the lower turret (33). The die (39) with the plate (W)
A turret punch press provided with a holder elevating device (45) for positioning at the same height position as the fixed table (11) and the movable table (13) during the processing of the turret. 2. The invention according to claim 1, wherein the upper surface of the lower turret (33) is provided lower than the lower surface of the movable table (13), and the left and right width of the fixed table (11) is adjusted to the lower turret (33). A turret punch press characterized by being provided larger than the left and right widths of the largest die holder (41) provided for the turret punch press.