JP2776389B2 - Method and apparatus for changing processing range of sheet material processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to a method for changing a processing range of a sheet material processing machine and an apparatus therefor, for example, a turret punch press, a laser processing machine, and the like. Thus, the present invention can be applied to a plate material processing machine for processing a large-sized plate material beyond a predetermined processing range, that is, beyond the stroke of the carriage.

(Prior art) In a plate processing machine such as a turret punch press, when a plate is processed beyond a predetermined processing range, the plate is clamped by a clamp mounted on a carriage and moved to a predetermined range. While processing, after this processing is completed,
After releasing the plate from the clamp and moving the carriage to the required dimension, change the position of the same plate and re-clamp,
Unprocessed parts are being processed.

(Problems to be Solved by the Invention) In the method of releasing the plate material from the clamp on the work table, moving the carriage, and then re-clamping, there are the following problems. difficult.

(1) If there is a camber on the end surface of the plate material, it is difficult to clamp the plate when re-clamping.

(2) When the plate is re-clamped, if there is a drop of the plate between the support balls on the work table, it may not be possible to hold the plate.

(3) When the width of the plate is small, the first step is performed, so that when the plate is released from the clamp, camber is often formed, and it is difficult to ensure accuracy.

For this reason, an object of the present invention is to perform a position change movement of a processing range and accurately perform processing without releasing the plate material from a clamp even when processing a plate material beyond a predetermined processing range. An object of the present invention is to provide a method for changing a processing range of a sheet material processing machine and an apparatus therefor.

[Constitution of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention has a carriage base and a carriage that are controlled and moved along the upper surface of a work table that movably supports a plate material. The carriage is provided with a clamp for clamping the plate, and the plate is machined while moving the plate clamped by the clamp. A moving range of a plate material processing machine for changing a processing range of the plate material with respect to a processing position in a state where the plate material is clamped by the clamp by moving and fixing a relative connection position between the plate material processing machine and the clamp member.

Further, the carriage comprises a carriage base which moves with respect to the work table, and a carriage which has a clamp for holding the plate material and moves with respect to the carriage base. The plate material held by the clamp is controlled to move on the work table. In a sheet material processing machine that performs processing, a carriage moving device that moves a carriage with respect to the carriage base between the carriage base and the carriage, and a connecting position changing device that changes a connecting position of the carriage with respect to the carriage moving device. Was provided to constitute a processing range changing device of the plate processing machine.

(Operation) The plate material positioned at a predetermined position on the work table is clamped by a clamp mounted on the carriage, and the primary processing is performed on the work table by control movement within a predetermined range by numerical control. After receiving, it returns to a predetermined position such as the origin position.

Next, the connecting position changing device mounted on the carriage base is released to allow movement between the carriage base and the carriage, and further, the connecting position changing device is moved to a predetermined position by the operation of the carriage moving device. After that, the carriage is connected again.

Next, the plate material can be processed in the unprocessed range by the movement of the connection position changing device while being held by the clamp, so that the secondary processing of the unprocessed portion is performed by the primary process. After being performed in the same manner as the processing, it is released from the clamp and carried out of the machine.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 8 shows a turret punch press 1 for performing a punching process on a sheet material W while performing all controls by a numerical control device (not shown). Various types of punches and dies (not shown) are mounted. On the upper surface of the work table 5 supporting the plate material W, a large number of support balls 7 for smoothly supporting the plate material W are arranged.

The carriage moving device 9 will be described as shown in detail in FIG. On the front and rear side walls of the work table 5, two guide rails 13 extending parallel to the frame 11 of the turret punch press 1 in the left-right direction (hereinafter referred to as the Y-axis direction) are mounted. On the rail 13, the Y of the work table 5 is connected via a movable table.
Both ends of the carriage base 15 extending in a direction perpendicular to the axial direction (hereinafter, referred to as an X-axis direction) are movably supported. The carriage base 15 includes:
A carriage 17 slidable in a horizontal state is provided along an X-axis direction which is a longitudinal direction of the carriage base 15,
The carriage 17 is provided with two clamps 19 for holding and positioning the plate material W.

Therefore, after clamping the plate material W by the clamp 19,
By moving the carriage base 15 along the guide rails 13 and moving the carriage 17 horizontally in the X-axis direction perpendicular to the Y-axis direction of the carriage base 15, the plate material W In the upper surface, it is moved and positioned in the X-axis direction and the Y-axis direction,
The punching process is performed by cooperation of a punch and a die mounted on the turret device 3. In order to position the plate material W on the work table 5 in the X-axis direction, a positioning pin 21 is mounted on a lower surface of a central portion of the work table 5 so as to be able to move in and out by a cylinder (see FIG. 4).

Also, a carriage is provided on the upper surface of the carriage base 15.
A drive motor M for moving the X-axis 17 in the X-axis direction and a feed screw 23 are mounted. The feed screw 23 is provided with a movable bracket 25 via a bracket guide 27 mounted on the carriage base 15. It is mounted so as to be movable in the X-axis direction. Also, this bracket 25
A connecting pin cylinder 31 is mounted on the upper side of the connecting pin cylinder via a cylinder plate 29, and a connecting pin 33 is attached to a distal end portion of the connecting pin cylinder 31 by a solenoid valve 35 so as to be able to move in and out.

Next, the connection position changing device 37 will be described in detail with reference to FIG.

This connection position changing device 37 is a form constituting a part of the carriage moving device 9 and is provided between the carriage base 15 and the carriage 17 to change the position of the movement of the carriage 17 in the X-axis direction with respect to the carriage base 15. It is configured to change the selection. That is, the carriage 17 is slidably mounted in a horizontal state on the front surface of the carriage base 15 via a wedge-shaped guide 39 along the X-axis direction, and faces the connection pin 33 at the upper end of the carriage 17. On the side, Y
A pin hole 41 for engaging the connecting pin 33 is provided at an appropriate interval in the axial direction, and a bush 43 is inserted into the pin hole 41.

The work table 5 and the carriage 17 are provided at the lower end of the carriage 17 to prevent the carriage 17 from moving while the carriage 17 is not connected to the carriage base 15 by the connection pins 33.
Fixing pin 45 for fixing with the fixed pin cylinder
A necessary number of 47s are mounted along the X-axis direction so as to be protruded and retracted by a solenoid valve 49. Further, a pin hole 51 is provided on the upper surface of the work table 5 at a position opposed to the fixing pin 45.
Are perforated.

As described above, the carriage base 15 and the carriage 17
The connection, release, and movement of the connection pin 33 and the pin hole 41 are performed under a certain related control, and the first and second workings are performed without releasing the plate material W from the clamp 19. A solenoid valve 53 is mounted on the upper surface of the carriage base 15 together with the solenoid valves 35 and 49 for opening and closing the clamp 19.

Although the shot pin method using the connection pins 33 has been shown for connecting the carriage base 15 and the carriage 17, the connection method may be a clamp method in which the carriage is held and held by a clamp (not shown).

Also, the method of fixing the carriage 17 and the worktable 5 is as follows.
In addition to the fixing pin method of fixing with the fixing pin 45, the second
As shown in the figure, a required number of abutments 59 are mounted on the lower end of the carriage 17 via a cylinder 61 in the Y-axis direction, and the lower end of the carriage base 15 facing the abutment 59 is provided in the X-axis direction. A friction lock device 55 for fixing the carriage 17 to the carriage base 15 by extending and contracting the cylinder 61 by disposing a lengthened receiving member 57, or as shown in FIG.
The carriage 17 may be fixed by pressing the work table 5 against the work table 5 by the reponitioning device 63.

Next, the operation of the above example will be described with reference to FIGS. FIG. 4 shows that the plate material W carried into the work table 5 by the transfer device (not shown) is positioned at a predetermined origin on the work table 5 by the clamp 19 and the positioning pin 21. The plate material W positioned at the origin is clamped at two positions in the X-axis direction by the clamp 19 by the input of the solenoid valve 53. This plate material W is a carriage base
The movement of the carriage 15 in the Y-axis direction and the movement of the carriage 17 with respect to the carriage base 15 in the X-axis direction cause the punch center P, which is the center of punching by the punch and the die, to move along the upper surface of the work table 5. Be moved. The movement of the plate material W is controlled by a numerical controller to perform punching at a predetermined position of the plate material W.

Now, FIG. 4, in FIG. 5, when the maximum movement range of the X-axis direction of the work W for receiving the first primary processing while being initially movement control is supplied on the work table 5 and L _1, the plate member The length of W in the X-axis direction is the X of the carriage 17.
If wider longer than the axial movement area yields a L ₂ as the remaining raw portion of the moiety L ₁ Chi received the first processing. This unprocessed portion, the L ₂ plate material W portion, is
At the clamping position 19, the workpiece cannot be directly processed because it is outside the area of the punch center P.

Thus, Figure 6, as in the FIG. 7, when performing processing of the raw part L ₂ of the plate material W, the operation of the coupling position changing device 37 changes the connecting position relative to the bracket 25 of the carriage 17. That is, in FIG. 1, the fixing pin 45 is
The carriage 17 is engaged to fix the carriage 17 at a specified position such as the origin position. In the fixed state of the carriage 17,
The connecting pin 33 is moved by the solenoid valve 35 to the carriage 17.
Pin hole 41 near the punch center P side in the X-axis direction
Modify presumed dead, switch to, to perform the secondary processing control range of L ₂ of the plate material W. Hereinafter, the respective steps for receiving the secondary processing will be sequentially described.

(1) Fixation of the carriage 17 by the fixing pin 45: In FIG. 1, in order to fix the carriage 17 and the worktable 5 after the completion of the primary processing, the fixing pin cylinder 47 is operated by the input of the solenoid valve 49 to fix the fixing pin 45. Is engaged with the pin hole 51 of the work table 5.

(2) Disconnection of the connecting pin 33: In FIG. 2, in order to release the connection between the carriage 17 and the carriage base 15, the connecting pin cylinder 31 is turned on by the input of the solenoid valve 35, as shown in FIG. Is removed from the pin hole 41.

(3) Movement of the connection position of the connection pin 33 (FIG. 6): When the feed screw 23 is rotated by the drive motor M mounted on the carriage base 15, the bracket 25 and the connection pin 33 are moved to the fourth position. as shown from the state of FIG state of FIG. 6, moving L ₂ minutes to the position of the pin hole 41 by a predetermined opposing.

(4) Engagement connection of the connection pin 33: The connection pin 33 is protruded by the extension of the connection pin cylinder 31, and the opposing pin hole is formed.
The carriage 17 and the carriage base 15 are engaged with each other again, and are connected to each other.

(5) Unlocking of the fixing pin 45: When the fixing pin 45 comes off from the pin hole 51 due to the contraction of the fixing pin cylinder 47, the carriage 17 is unlocked from the work table 5.

(6) Secondary processing of plate material W: In FIG. 6 and FIG.
The plate material W is subjected to the secondary processing of the unprocessed portion of the primary processing (the hatched portion in FIGS. 6 and 7) in the same manner as the primary processing.

(7) Unloading of the plate material W: After all the processing is completed, the plate material W is released from the clamp 19 and is unloaded outside by the unloading device (not shown).

(8) Fixing the carriage 17 with the fixing pins 45: The carriage 17 is fixed to the work table 5 in the same manner as (1).

(9) Disconnecting the connection pin 33: Remove the connection pin 33 from the pin hole 41 in the same manner as in (2).

(10) Movement of connection position of connection pin 33 (FIG. 4): (3)
Similarly, the connection position of the bracket 25 to the carriage 17 is moved to the initial position.

(11) Engagement connection of connection pin 33: Carriage 17 and carriage base 15 are connected again in the same manner as (4).

(12) Release of fixing of the fixing pin 45: Release the fixing of the carriage 17 and the work table 5 in the same manner as (5).

When the next plate material W is loaded in this way, the clamp
Predetermined processing is performed in the same manner as described above while clamping at 19.
Thus, a large plate material W size, when said beyond a predetermined machining area L ₁ of the turret punch press 1 subjected to processing of L _2, by switching the sheet material W in a state which does not release from the clamp 19, the primary And the secondary processing do not reduce the accuracy.

The present invention is not limited to the above-described embodiment, but can be implemented in other ways by making appropriate changes. Although the present embodiment has been described by taking a turret punch press as an example, it is also applicable to a plate material processing machine such as a shearing machine or a laser processing machine.

[Effects of the Invention] As described above, when a plate material having a size exceeding a predetermined processing range of a plate material processing machine is processed as described above, the connecting position is maintained without releasing the plate material from the clamp. By changing the movement control range of the carriage with the change device, the primary processing of the first movement control range and the secondary processing of the remaining movement control range can be processed with high precision, so it is possible to process plate materials larger than machine specifications The cost can be reduced.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 shows a main part of the present invention, and FIG. 8 is an enlarged front sectional view of a part indicated by an arrow I in FIG. 8, and FIGS. FIG. 4 to FIG. 7 are process diagrams of a first working and a second working for processing a work, and FIG.
Fig. 5 is a plan view showing a processing range of the primary processing of the plate material, Figs. 6 and 7 are plan views showing a processing range of the secondary processing, and Fig. 8 embodies the present invention. 1 is an overall front view of a turret punch press according to one embodiment. 5 Work table 9 Carriage moving device 15 Carriage base 17, Carriage 19 Clamp 23 Feed screw 25 Bracket 31 Connecting pin cylinder 33 Connecting pin 37 Connection position changing device, 41: Pin hole W: Plate, M: Motor P: Punch center

Claims (2)

(57) [Claims] An apparatus has a carriage base and a carriage which are controlled and moved along an upper surface of a work table for movably supporting a plate material. The carriage is provided with a clamp for clamping the plate material, and the plate material is clamped by the clamp. In a sheet material processing machine that performs sheet material processing while moving a plate, a relative connection position between a carriage having the clamp and a carriage base that guides the movement of the carriage is moved and fixed, thereby clamping the sheet material with the clamp. And changing the processing range with respect to the processing position of the plate in a state where the processing is performed. 2. A carriage base which moves with respect to a work table, and a carriage which has a clamp for holding a plate member and moves with respect to the carriage base,
In a plate material processing machine for processing a plate material held by the clamp while moving the plate material on the work table, a carriage moving device for moving a carriage relative to the carriage base between the carriage base and the carriage; A processing range changing device for a plate material processing machine, comprising: a connecting position changing device for changing a connecting position of a carriage to a moving device.