JP2001096320A - Punch press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the core slippage of a die and improve work efficiency of work pieces by holding down backlash of gears in the die turning mechanism and keeping clearance between an upper die and a lower die constantly. SOLUTION: In the press, there is equipped with a punch P fixed at a die holder 4, a die D and a ram cylinder 3 installed above the punch P, into which a turntable 12 is installed to turn around the die and a X-axis table 5 and a Y-axis table 7 installed to move on the turntable 12 towards X-axis and Y-axis directions, respectively. By moving a work piece W, being placed on either the X-axis table or the Y-axis table, towards directions of X-axis or Y-axis and by turning the work piece W around the die D, it enables to fix the work position properly, press the punch P using the ram cylinder 3, and punch press the work piece W in cooperation with the die D.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention eliminates backlash such as gears constituting a punch press, particularly a mold rotating mechanism, and maintains a constant clearance between an upper mold and a lower mold.
The present invention relates to a punch press that eliminates misalignment of a mold and improves work efficiency of a work.

[0002]

2. Description of the Related Art Conventionally, a punch press, which is an example of a plate processing machine, has, for example, the structure shown in FIG.

[0003] In FIG. 6, a punch press has a main body frame 51, a die holder 50 is provided on the main body frame 51, and a punch P is provided on an upper arm of the die holder 50.
However, dies D are respectively attached to the lower arms.

A ram cylinder 52 is provided on the body frame 51 directly above the punch P.

With this configuration, the work W carried onto the table 53 is repositioned by the clamp 54 to be positioned at the processing position, the ram cylinder 52 is actuated, the punch P is pressed, and the work D cooperates with the die D. W is subjected to a predetermined punching process.

In this case, by rotating the punch P and the die D with respect to the mold holder 50, the punch P and the die D having the same size and shape can be changed in direction to perform the punching process on the work W. it can.

[0007]

[Problems to be solved by the invention]

However, in the punch press shown in FIG. 6, when precision is particularly required, a workpiece W having a plate thickness of 0.1 mm is machined with high accuracy of machining accuracy between holes ± 0.03 mm. It has become.

[0009] However, the punch press (Fig. 6) may cause backlash in gears constituting the die rotation mechanism of the punch P and the die D due to aging when used for a long time. The clearance between P and die D may not be able to maintain a constant value.

Therefore, as described above, when the punch P and the die D are rotated with respect to the die holder 50 to perform the punching of the work W, the core of the die is displaced, and the height as described above is increased. Precision machining is not possible.

As a result, the processing efficiency of the work W is reduced.

An object of the present invention is to eliminate play of gears and the like constituting a mold rotating mechanism and to make the clearance between an upper mold and a lower mold constant, thereby eliminating misalignment of the mold.
An object of the present invention is to improve the processing efficiency of a work.

[0013]

According to the present invention, as shown in FIGS. 1 to 5, a punch P, a die D and a punch P mounted on a mold holder 4 are provided.
And a turntable 12 rotatable about a die D. On the turntable 12, an X-axis table 5 and a Y-axis table 7 are provided.
Are mounted to be movable in the X-axis direction and the Y-axis direction, respectively.
The work W placed on the X-axis table 5 or the Y-axis table 7 is moved to the X-axis direction and the Y-axis direction, and is rotated around the die D to be positioned at the processing position. A punch press characterized by performing a predetermined punching process in cooperation with a pressing die D is provided.

Therefore, according to the configuration of the present invention, for example, when punching a workpiece W, the punch P and the die D are fixed (FIGS. 3A to 3D), and W
By moving only the tool, it can be positioned at the processing position, so that there is no play such as gears constituting the mold rotating mechanism, and the clearance between the punch P as the upper mold and the die D as the lower mold is made constant. As a result, the misalignment of the mold is eliminated, and the processing efficiency of the work W can be improved.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings according to embodiments. FIG. 1 is an overall view showing an embodiment of the present invention.

The punch press shown in FIG. 1 has a main body frame 1, and a C-shaped die holder 4 is provided on the main body frame 1, and as shown in FIG. A punch P is attached via a punch guide 16 and a die D is attached via a support 15 to the lower arm.

A ram cylinder 3 for pressing the punch P is provided directly above the punch P in the main body frame 1.
Is provided.

A circular turntable 12 is rotatably mounted on the support 15 of the die D, and a rack 13 is provided on the outer peripheral surface of the turntable 12.

The rack 13 meshes with a pinion 14, and the pinion 14 is driven to rotate by a motor M1.

With this configuration, by rotating the turntable 12 about the die D (FIG. 3D),
The processing area a on the work W placed on the X-axis table 5, which will be described later, matches the direction of the punch P and the die D, and the work W can be positioned at the processing position.

A Y-axis LM guide 8 extending in the Y-axis direction is laid on the turntable 12, and the Y-axis LM guide 8 has a frame-shaped (FIG. 2) Y-axis table 7 via a nut 8A. Are slidingly coupled.

On the frame-shaped Y-axis table 7,
An X-axis LM guide 6 extending in the X-axis direction is laid, and a frame-shaped (FIG. 2) X-axis table 5 is slidably connected to the X-axis LM guide 6 via a nut 6A.

A clamp 9 is attached to the X-axis table 5 via an upper / lower cylinder 10 (FIG. 1) so as to be openable and closable.

The Y-axis table 7 has a ball screw 11
Are screwed together, and the ball screw 11 is rotationally driven by a Y-axis motor My, and the Y-axis motor My is fixed on a turntable 12 via a bracket 17.

A ball screw (not shown) is screwed into the X-axis table 5, and the ball screw is connected to the X-axis motor Mx.
(Not shown), and the X-axis motor Mx is fixed to the Y-axis table 7.

With this configuration, by moving the X-axis table 5 and moving the work W thereon in the X-axis direction (FIG. 3B), the processing area a on the work W D, and the Y-axis table 7 is further moved to position the processing area a directly below the punch P directly above the die D (FIG. 3C).

Finally, as described above (FIG. 3)
(D)) By rotating the turntable 12 around the die D so that the processing area a on the work W coincides with the direction of the punch P and the die D, the work W can be positioned at the processing position.

In this state, by operating the ram cylinder 3 (FIG. 1) and pressing the punch P, the work area a
Is subjected to a predetermined punching process in cooperation with the die D.

Therefore, since the punch P and the die D are fixed and the workpiece W can be positioned at the processing position by moving only the work W, there is no backlash such as a gear constituting the mold rotating mechanism, and the upper mold can be used. The clearance between a certain punch P and a die D as a lower mold can be made constant.

For this reason, there is no misalignment of the mold, and it is possible to improve the processing efficiency of the work W.

FIG. 4 is a view showing another embodiment of the present invention. Unlike FIGS. 1 to 3, a punch P and a die D are provided in a C-shaped mold holder 4 in a plurality of rows and a plurality of columns. They are arranged in a go board.

That is, dies D are arranged on the lower arm of the mold holder 4 in a plurality of rows and columns in a grid pattern (FIG. 5). (Fig. 4)
Only the same plural rows and plural columns are arranged in a grid pattern.

Then, the punches P arranged in a grid pattern
A ram cylinder 3 is provided above.

The ram cylinder 3 includes a Y-axis slider 26
The Y-axis slider 26 is adapted to move in the Y-axis direction within an X-axis slider 24 described later.

The X-axis slider 24 is slidably connected to the upper frame 2 via a roller 25, and the vertical member 22 is attached to the X-axis slider 24.

A rack 21 is engraved on the vertical member 22, and the rack 21 is engaged with a pinion 20, and the pinion 20 is driven to rotate by a motor M 2 fixed to the upper frame 2.

Further, a Y-axis direction shift cylinder 23 is fixed to the vertical member 22, and the Y-axis direction shift cylinder 2
3 is connected to the ram cylinder 3.

With this configuration, when the motor M2 is operated, the X-axis slider 24 moves on the upper frame 2 along the ram cylinder 3 in the X-axis direction via the pinion 20, the rack 21, and the vertical member 22.

When the Y-axis direction shift cylinder 23 is operated, the ram cylinder 3 moves on the X-axis slider 24 via the Y-axis slider 26 in the Y-axis direction.

As a result, the ram cylinder 3 moves in the X-axis direction and the Y-axis direction, thereby selecting a desired one of the punches P arranged on the upper arm of the mold holder 4 and pressing the same. The work W can be subjected to, for example, a punching process in cooperation with.

In FIG. 4, the turntable 12 and X
The axis table 5 and the Y-axis table 7 are the same as those in FIG.

The operation of the present invention having the above configuration will be described below.

(1) Operation in FIG. 1 (FIG. 2)

When the work W is carried into the punch press (FIG. 1), the work W is placed on the X-axis table 5 by operating the vertical cylinder 10 and closing the clamp 9.

In this case, the work W and the mold are, for example, as shown in FIG.
(A), the processing area a on the work W and the punch P / die D do not coincide with each other in distance and direction.

In this state, an X-axis motor Mx (not shown)
Is operated to rotate a ball screw (not shown) screwed to the X-axis table 5 so that the X-axis table 5 is moved on the Y-axis table 7 by the X-axis LM guide 6 as shown in FIG. Along the X axis.

Thus, the processing area a on the work W is
It was positioned immediately near the punch P and the die D.

Next, by operating the Y-axis motor My (FIG. 1) and rotating the ball screw 11 screwed to the Y-axis table 7, the Y-axis table 7 is moved to the X-axis as shown in FIG. It is moved on the axis table 5 along the Y-axis LM guide 8 in the Y-axis direction.

Thus, the processing area a on the work W is
It was positioned just below the punch P just above the die D.

Finally, by operating the motor M1 (FIG. 1) to rotate the pinion 14, the turntable 12 is rotated about the die D via the rack 13 as shown in FIG. Let it.

Thus, the processing area a on the work W is
Since the direction of the punch P coincides with the direction of the die D, when the ram cylinder 3 is actuated, the punch P is pressed, and a predetermined punching process is performed on the processing area a in cooperation with the die D.

As described above, according to the present invention, when the work W is punched as described above, the punch P
And the die D are fixed (FIGS. 3 (A) to 3).
(D)), it is possible to position the workpiece W by moving only the workpiece W.

Therefore, play of gears and the like constituting the mold rotating mechanism is eliminated, and the clearance between the punch P as the upper mold and the die D as the lower mold can be made constant.
For this reason, there is no misalignment of the mold, and it is possible to improve the processing efficiency of the work W.

(2) Operation in FIG. 4 (FIG. 5)

When the work W is carried into the punch press (FIG. 4), the work W is placed on the X-axis table 5 by operating the upper and lower cylinders 10 and closing the clamp 9 as in the case of FIG. Place.

In this case, the work W and the mold are, for example, as shown in FIG.
It is assumed that the processing area a on the workpiece W and the punch P / die D do not coincide with each other in distance and direction.

In this state, the X-axis motor Mx (not shown)
Is operated to rotate a ball screw (not shown) screwed to the X-axis table 5, thereby moving the X-axis table 5 in the X-axis direction along the X-axis LM guide 6 on the Y-axis table 7 ( FIG. 3 (B)).

Thus, the processing area a on the work W is
The punch P and the die D, which are arranged on the mold holder 4 (FIG. 4) in a plurality of rows and a plurality of columns in a grid pattern, were positioned immediately adjacent to a desired one.

Next, the Y-axis motor My (FIG. 4) is operated to rotate the ball screw 11 screwed to the Y-axis table 7 so that the Y-axis table 7
Move in the Y-axis direction along the axis LM guide 8 (FIG. 3)
(Equivalent to (C)).

Thus, the processing area a on the work W is
It was positioned just above the desired die D and immediately below the desired punch P.

Next, by operating the motor M1 (FIG. 4) to rotate the pinion 14, the turntable 12 is rotated about the die D via the rack 13 (corresponding to FIG. 3D).

Thus, the processing area a on the work W is
The directions coincided with the directions of the punch P and the die D.

Then, the motor M2 and the shift cylinder 23 (FIG. 4) in the Y-axis direction are operated, and the ram cylinder 3 is moved in the X-axis direction and the Y-axis direction. Position it upward.

If the desired punch P is pressed by operating the ram cylinder 3 in this state, for example, a punching process can be performed on the processing area a of the work W in cooperation with a desired die D. .

Therefore, as in the case of FIG. 1, according to the present invention, for example, when the work W is punched as described above, the mold holder 4 (FIG. 4) The punch P and the die D arranged in a shape are fixed (corresponding to FIGS. 5, 3B to 3D), and the work W
By moving only the tool, it can be positioned at the processing position, so that there is no play such as gears constituting the mold rotating mechanism, and the clearance between the punch P as the upper mold and the die D as the lower mold is made constant. As a result, the misalignment of the mold is eliminated, and the processing efficiency of the work W can be improved.

[0066]

As described above, according to the present invention, there are provided a punch mounted on a mold holder, a die, and a ram cylinder installed above the punch, so that the turntable can be rotated around the die. An X-axis table and a Y-axis table are mounted on the turntable so as to be movable in the X-axis direction and the Y-axis direction, respectively, and a work placed on the X-axis table or the Y-axis table is moved in the X-axis direction and the Y-axis direction. By moving and rotating around the die, it was positioned at the processing position, the punch was pressed by a ram cylinder, and a predetermined punching process was performed in cooperation with the die.

Therefore, according to the configuration of the present invention, for example, when punching a work, the punch and the die can be fixed and the work can be positioned at the processing position by moving only the work. The play of gears and the like constituting the mechanism is eliminated, and the clearance between the punch as the upper mold and the die as the lower mold can be kept constant. This has the effect of improving efficiency.

[0068]

[Brief description of the drawings]

FIG. 1 is an overall view showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view of FIG.

FIG. 3 is an operation explanatory view of FIG. 1;

FIG. 4 is a diagram showing another embodiment of the present invention.

FIG. 5 is a plan view of FIG. 4;

FIG. 6 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body frame 2 Upper frame 3 Ram cylinder 4 Die holder 5 X-axis table 6 X-axis LM guide 7 Y-axis table 8 Y-axis LM guide 9 Clamp 10 Vertical cylinder 11 Ball screw 12 Turntable 13, 21 Rack 14, 20 Pinion 15 Support 16 Punch guide 17 Bracket 22 Vertical member 23 Y-axis direction shift cylinder 24 X-axis slider 25 Roller 26 Y-axis slider D Die My Y-axis motor M1, M2 Motor P Punch W Work

Claims (7)

[Claims] A ram cylinder installed above the punch and die and the punch attached to the mold holder;
The X-axis table and the Y-axis table can be rotated on the turntable so that the turntable can be rotated around the die.
The workpiece mounted on the X-axis table or Y-axis table is movably mounted in the axis direction and the Y-axis direction, and is moved in the X-axis direction and the Y-axis direction while rotating around the die. A punch press, characterized in that a punch is pressed by a ram cylinder after positioning, and a predetermined punching process is performed in cooperation with a die. 2. The punch press according to claim 1, wherein a rack is provided on an outer peripheral surface of the turntable, and the rack meshes with a pinion driven to rotate by a motor. 3. The X-axis table and the Y-axis table are both formed in a frame shape, the Y-axis table is a Y-axis LM guide on a turntable, and the X-axis table is a X-axis LM guide on a Y-axis table. 2. The punch press according to claim 1, wherein each of the workpieces is slidably connected, and the workpiece is placed on an X-axis table via a clamp. 4. A ball screw is screwed to each of the X-axis table and the Y-axis table, and the ball screw of the X-axis table is rotationally driven by an X-axis motor attached to the Y-axis table. The screw is rotated by a Y-axis motor attached to a turntable.
The punch press described. 5. The punch press according to claim 1, wherein a plurality of rows and a plurality of columns of punches and dies are arranged in a grid pattern on the mold holder. 6. The ram cylinder is mounted on an X-axis slider via a Y-axis slider, and the ram cylinder moves in the X-axis direction and the Y-axis direction to select a desired one of the punches. The punch press according to claim 5, wherein the pressing is performed. 7. A ram cylinder is coupled to a Y-axis shift cylinder, and an X-axis slider is slidably coupled to an upper frame via a roller and coupled to a motor via a rack and pinion mechanism. Item 6. A punch press according to item 6.