JPH0475727A - Positioning device for plate material working machine - Google Patents

Abstract

PURPOSE:To perform high accuracy positioning and to improve working accuracy by producing a positioning member freely movably forwards and backwards at a position opposite to the arranged end of an end locator of a work table. CONSTITUTION:A carried-in plate material is moved by a loader on a work table 6, one end is abutted on a locator 12 and a long side (m) is abutted on each work holder 11. the long side (m) is abutted on a positioning member 13, too. Since the long side is abutted on the positioning member 13 in this way, lengthwise deflection at a part far from an end locator 12 of the plate material is restrained. Accordingly, positioning can be performed with high accuracy and punching is improved in accuracy. A completion of positioning, the work holder 11 is closed and the plate material W is clamped, then, the end locator 12 is sunk and the positioning member 13 is ristricted.Under this state, the plate material W is moved by the work holder 11 to be punched.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a positioning device for a plate processing machine such as a turret punch press or a laser processing machine.

[Prior Art] Conventionally, in a turret punch press, a workpiece pull 52 is provided on a bed 511 so as to be movable back and forth (in the Y-axis direction) as shown in FIG. A holder 53 is installed on a carry run 54 at the Aif edge of the work table 52 so as to be movable laterally (in the X-axis direction).

By moving the work table 52 and the knife holder 53, a desired location on the plate Wa is moved to the punch position P a l.

(q
M determination is performed using an engine locator 55. which is removably provided at the end of the work table 52. '=, multiple work holders 5
This is done by bringing the two orthogonal sides of the plate 111a into contact with each other.

[Problem to be solved by the invention I2] The lengths of the plurality of work holders 53 and 75 are designed to be shorter than the width of the work table 52, and during positioning, the work holders 53 are 7th
JK = Yu 55 side and have them wait.

Therefore, in the case of a long plate wb as shown by the chain line in FIG. It becomes free and easy to swing back and forth. Therefore, there is a problem that accurate positioning cannot be performed.

An object of the present invention is to provide a positioning device for a plate processing machine that can improve the positioning accuracy of a long plate.

[Means to solve the problem]

The positioning device for a plate processing machine according to the present invention includes a positioning member that is movably provided at a position opposite to the end portion of the work table where the end locator is disposed.

A plate processing machine has a plurality of work holders arranged side by side to grip one side of a plate on a work table, and these work holders are movable in the direction in which they are lined up. The end locator brings a side adjacent to the one side of the plate material into contact with the end locator, and is provided at the end of the work table so as to be freely retractable. The positioning member abuts the one side of the plate material.

[For production]

The long plate material carried onto the work table has its end brought into contact with the end locator, and its one longitudinal side brought into contact with a plurality of work holders and a positioning member. Thereby, positioning is performed in two orthogonal axes directions. In this case, since the one side of the plate material comes into contact with the positioning member, deflection of the portion of the plate material away from the end locator is suppressed, and accurate positioning can be performed.

When positioning is completed, the work holder is closed, the plate material is gripped, and the end locator and positioning member are retracted.

〔Example〕

An embodiment of the present invention will be described based on FIGS. 1 to 8.

In FIG. 1, a plate processing machine 1 consists of a turret punch press, and a frame 2 is provided with a turret 3 and a press drive mechanism (not shown) for driving a ram at a punch position P. The work table 6 is a pair of left and right split tables 6a.
, 6b, and is fixed to the reciprocating table 8 together with the carriage 7, and is installed on the rail 5 of the head 4 so as to be movable back and forth (in the Y-axis direction). Between the two side tables 6a and 6b,
A fixed table 9 is fixedly installed on the bed 4 at the same level as the work table 6. The carriage 7 is installed with a cross slide 10 movable in the lateral direction (X-axis direction), and a plurality of work holders 11 are mounted on the cross slide l.
It is installed side by side with O. The work table 6 and the cross slide IO are each driven by a feed screw and a servo motor (not shown). By the forward and backward movement of the work table 6 and the lateral movement of the cross slide lO, any part of the plate material W held by the work holder 11 is sent to the punching position rIIP.

An end locator 2 for positioning the end of the plate material W is provided at the left end of the work table 6 in the figure so that it can move up and down. A roller-shaped positioning member 13 is provided. The positioning member 13 is a work holder II for the plate material W.
The end locator 2 is brought into contact with the side m gripped by the end locator 2, and is driven forward and backward (in the direction indicated by the arrow) by the retraction drive mechanism 14 in conjunction with the end locator 2.

FIG. 6 is a partially enlarged view of work holder II.

The work holder 11 has a fixed arm 15 and a movable arm 6.
The movable arm 16 is driven to open and close by a cylinder device (not shown) or the like. The fixed arm I5 is provided with a tip receiving piece 18 that holds the plate material W between it and the movable arm I6, and a positioning surface I9 that brings the end surface of the plate material W into contact.

FIG. 5 shows the drive mechanism of the end locator 12.

The end locator I2 is fitted into the guide cylinder 20 so as to be able to move up and down, and moves up and down by driving the air cylinder 21 so that its upper end protrudes and retracts from the upper surface of the work table 6. The end locator I2 is provided with an electric contact piece 22 at a position where the plate material W contacts, and an energization detector 24 that detects the contact of the plate material W by energization.
are connected by lead wires 23.

2 to 4 show the mechanism 14 for moving the positioning member 13 in and out. The positioning member 13 consists of a roller attached to one end of the lever 26, and the lever 2G is attached to the fulcrum shaft 2 in the middle.
15 for horizontal rotation, and the other end is connected to an air ring 27. The fulcrum shaft 25 is the adjustable plate 12
81 are installed, air 2 and ring 27 are installed in the bin 2 at the rear.
Adjustable plate by 9! 8. The adjustable plate 28 is rotatably installed on the fixed plate 30.
．． −+, and the pair of elongated holes 31 at are engaged with the guide pins 31 of the fixing plate 30. Therefore, the adjustable plate 28 is
The adjustment screw 32 provided on the fixed plate 30 allows adjustment in the front-rear direction (Y
1. The fixed plate 30 is fixed to a frame member 8a that constitutes a reciprocating table 8 integrated with the work table 6. 1. The work table 6 allows the positioning member 13 to be freely adjusted ir to fit
i-fitting notch 33 (-1 After the loose fitting notch 33, the height retaining plate 34 is attached adjacent to the plastic 6, 1. Height retaining plate 34
The work table 6 supports the plate W at a height that corresponds to the positioning member I3.
Lance Far Ball 3! i (Fig. 4) is provided with a number of protrusions on the entire surface, and the plate material W is supported by a float F from the upper surface of the work table 6, so that the plate material W is bent and the positioning member 13 is The height holding plate 34 prevents the plate material W from entering downward. 3. FIG. 7 shows the entrance of FIG. Interlock Jl: Show the pneumatic circuit 4-
The air pressure tank 37 of the 0-Ane trogator section piping 36 passes through the electromagnetic switching valve 38 and branches at the other end (7, Unit 5, air cylinder 21 on the troketer side (Fig. 5), Jl:, positioning member side The air cylinder 27 (Fig. 2) is connected to the Subi 1-controller 39 and 40 through the 1.
The entronograph 7 moves in and out in conjunction with the 12-point positioning member 13. Fig. 8 shows the relationship between the plate material 0-g and the plate 11 processing machine.

The plate material loader is a loader 42 that runs along the construction rails 416, -, and is provided with a suction pad 44 via an elevating structure 43 and an elevating frame 45, which sucks the plate material W and places it on the work table 6. -1 Carry out loading and unloading.

The work holder 11 (Fig. 1) i,=
In order to determine the position 1r of the plate material W, a mechanism (not shown) is provided for moving part or all of the suction pad 44 back and forth and left and right.

0 for explaining the positioning operation with the above configuration, FIG. 6,
=, J, N[・Protrude the locator 12 upward,
3 shows the state in which the positioning member 13 is advanced to a position R (indicated by a solid line in FIG. 2) in line with each work holder 11, and the plate material W is carried onto the cotton table 6 by the loader 4 shown in FIG. (The loaded plate material W is moved on the workpiece 6 by the loader 42, and one end is attached to the end [7 case 912
When the long side m is brought into contact with each work holder 11, the long side m is brought into contact with each work holder 11. As a result, the positioning of the plate material W in the X and Y directions is performed.

If the plate material W is long as shown in the figure, the long side m is also brought into contact with the positioning member 13.

By touching the positioning member 13 in this way,
The back and forth deflection of the portion of the plate W away from the end locator 12 is suppressed. Therefore, highly accurate positioning can be performed and the accuracy of punch processing is improved.

When the positioning is completed, the work holder 11 is closed and the plate material W is gripped (after gripping, the entrance opening case 12 is retracted and the positioning member 13 is retracted to the position indicated by the chain line in FIG. 2. In this state, the work holder 11 moves the plate material W and punches it.The gripping position of the plate material W by the work holder 11 is offset -), but the work holder 1
After closing 1, it is firmly gripped, so there is no problem.

In addition, in the embodiment described above, the end locator 12 and the positioning member 13 are interlocked with each other using air pressure. However, it is better to have seven guns each operating independently. The positioning member 13 is not limited to the +2 configuration, but may be one that moves downwards.

In addition, in the above embodiment, the work table 6 is moved back and forth, but when applied to a laser processing machine etc., the work table 6 may be fixed in position and the 2.1 nose head may be moved back and forth. It's okay.

Further, in the above embodiment, the positioning is performed using the loader 42, but the positioning may be performed manually1. Since the positioning member is movable in the opposite direction from the end of the locator, it is possible to suppress the vibration of the end of the long plate away from the locator, allowing for highly accurate positioning and machining. This has the effect of improving accuracy.

[Brief explanation of the drawing]

FIG. 1 is a plan view of one embodiment of the present invention, FIG. 2 is an enlarged cutaway plan view of the positioning member and egress/retraction drive mechanism, and FIG.
4 is an enlarged sectional front view of the same, FIG. 5 is a sectional front view of the end locator, FIG. 6 is a partially enlarged sectional view of the work holder, and FIG. 7 is an enlarged sectional view of the work holder. 8 is a pneumatic circuit diagram of the drive system for the end locator and positioning member, FIG. 8 is a schematic front view showing the relationship between the plate processing machine and the plate loader, and FIG. 9 is a plan view of the conventional example. 1... Plate processing machine, 6... Work table, 10.
...Cross slide, 11...Work holder, 12...
・End locator, 13...positioning member, I4...
- Exit/retract drive mechanism, 21...Air cylinder, 26...-Lever 27...Air cylinder, 33...Free fit notch, 42
...Roda, m...Side, W...Plate -Z:: Figure 1 Figure 4 Figure 5

Claims (1)

[Claims] A plurality of work holders that grip one side of the plate material on the work table are arranged so as to be movable in the direction in which they are lined up, and an end locator that brings a side adjacent to the one side of the plate material into contact is moved in and out of the end of the work table. In the positioning device for a plate processing machine that is freely provided, a positioning member that makes contact with the one side of the plate is movably provided at a position on the opposite side of the end locator of the work table. A positioning device for a plate processing machine featuring: