JPH0446727A - Plate positioning device in plate machining line - Google Patents

Abstract

PURPOSE:To improve positioning accuracy by forming a reference hole in plate and engaging a positioning device with this reference hole to position plate in a plate machining line provided with a punch press machine and a shearing machine. CONSTITUTION:A punch press machine 1 and a shearing machine 2 are provided at one end of the plate machining line. The punch press machine 1 is provided with a machining head 5, and the shearing machine 2 is provided with a positioning device. Consequently, plate W is carried in on a work table 4 of the punch press machine 1 and held by a work holder 6. The work holder 6 and a carriage 7 are moved in the right or left direction or in the forward or backward direction, and workpiece W is moved to the machining position. A square hole for reference is machined by the machining head 5. Next, plate W is taken out of the work table 4, passed over a stock conveyor 3 and carried onto a work table 10 of the shearing machine 2. The positioning device is driven to position plate W.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a plate positioning device, particularly a plate material positioning device, which is provided in a plate processing line having first and second processing machines, and for positioning a plate material to a processing position. The present invention relates to a plate positioning device.

[Conventional technology]

BACKGROUND ART As plate processing machines, plate processing lines including, for example, punch press machines and shearing machines have been conventionally used. In this plate material processing line, a plate material that has been punched with holes using a punch press machine is carried into a shearing machine, and after the plate material is positioned by the shearing machine, the end face of the plate material is sheared.

When positioning a plate in a shearing machine, positioning is performed by bringing the end surface of the plate into contact with a positioning member such as an end locator provided on the shearing machine.

[Problem to be solved by the invention]

The end face of the plate material carried into the shearing machine of the plate material processing line is an unprocessed surface, and may be warped or distorted. In such a case, in the conventional positioning mechanism that positions the plate by bringing the end face of the plate into contact with a positioning member, a positioning error occurs, resulting in a problem of reduced processing accuracy.

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

[Means to solve the problem]

A plate positioning device according to the present invention is a device that is installed in a plate processing line having first and second processing machines and for positioning a plate at a processing position, and includes a processing head and a positioning member. There is.

The processing head is provided in the first processing machine and is used to form holes for positioning reference in the plate material. The positioning member is provided so as to be removable in the second processing machine so as to be able to engage with a reference hole formed in the plate material by the processing head.

[Effect]

In the plate material positioning device according to the present invention, first, a hole for positioning reference is formed in the plate material using a processing head provided in a first processing machine. Then, this plate material is carried into the second processing machine. Next, the positioning member provided on the second processing machine is projected, and the wall surface of the reference hole is brought into contact with the positioning member, and the second Positions the plate material in the processing machine.

Thereby, even if there is an error in the end face of the plate, the plate can be positioned with high accuracy.

〔Example〕

FIG. 1 shows a plate processing line in which an embodiment of the present invention is adopted.

In FIG. 1, a punch press machine 1 is provided at one end of this plate processing line. Further, a shearing machine (a stock conveyor 3 is provided between the right angle sharpless machine 1 and the right angle shear 2) is provided at the other end of the plate material processing line.

The punch press machine 1 mainly includes a processing head 5 for punching holes in a plate material W placed on a work table 4, a work holder 6 for gripping the plate material W, and a work holder 6 arranged on the left and right sides. It has a Naya ridge 7 which is provided so as to be movable in the direction. Further, the carriage 7 is provided so as to be movable in the front-rear direction (vertical direction in the figure). The machining blade 5 is provided on a rotatable turret 8, and this turret 8 is equipped with a plurality of machining tools. This machining tool includes a tool for machining a square hole, which serves as a reference for positioning the plate material in the shearing machine 2, in addition to a tool for machining a round hole.

The right angle shear 2 is a processing machine for simultaneously cutting two perpendicular sides of the plate material W, and the work table 10
It has a gripper (not shown) for moving the plate material W placed thereon and a work holder 11 for gripping the workpiece. Further, the right angle shear 2 is provided with a positioning mechanism 20 as shown in FIGS. 2A and 2B. The positioning mechanisms 20 are provided at three locations at predetermined intervals in the left-right direction of the right-angle shear 2. 2A and 2B show the right end positioning mechanism.

The positioning mechanism 20 has an air cylinder 21 arranged below the work table IO.

This air cylinder 21 is provided on a base 22. At the tip of the cylinder rod 23 of the air cylinder 21,
A rod 24 is connected. The upper part of the rod 24 can be slidably inserted into a square hole 15 for positioning reference processed by the punch press machine 1. Further, the tip of the rod 24 is formed into a tapered shape. On the other hand, a fixing member 25 is provided on the base 22 on the side of the air cylinder 21. A support member 26 is provided above the fixing member 25 . The support member 26 includes ? L2
7 is formed. A metal bushing 28 is mounted within this hole 27. The rod 24 is slidable vertically within the metal bush 28. The work table 10 is formed with a hole 29 through which the rod 24 can be inserted. Further, as shown in FIG. 3, a proximity switch 33 for detecting the work W is provided above the work table 1o and further to the left of the leftmost positioning mechanism. An end locator 30 is provided at the end of the work table 10.

A rail 31 is disposed in the front-back direction between the punch press machine 1 and the right angle shear 2. The stock conveyor 3 is formed in a gate shape and is arranged so as to straddle the rail 31.

Further, a carriage 32 is movably provided on the rail 31 so that the carriage 32 can pass below the stock conveyor 3. In addition, stock conveyor 3
The upper part is configured to be openable and closable, so that the plate material W placed on the stock conveyor 3 can be dropped onto the cart 32 below. When the plate material W is processed only by the punching machine 1, the plate material W that has been punched and processed is carried onto the stock conveyor 3 from the punch press machine 1. Then, through the opening formed on the stock conveyor 3, the lower carriage 32
is thrown upwards.

Next, the operation will be explained.

First, a plate material W is carried onto the work table 4 of the punch press III by a loader (not shown).

Next, the plate material W is held by the work holder 6, and the work holder 6 and the carriage 7 are moved in the left-right direction and the front-back direction, respectively, to move the work W to the processing position. Then, the machining head 5 performs predetermined machining such as drilling a hole in the workpiece W. Also, in the final process of machining, the plate material W
A square hole is machined on the front end portion (on the side of the gripping part of the work holder 6) using a square hole machining tool.During this square hole machining, the workpiece W is rotated in the horizontal direction of the workpiece W depending on the size. Multiple locations shall be opened.

Next, the processed plate material W is taken out from the work table 4 by an unloader (not shown).

Then, the unloader is moved in the left-right direction to cause the plate material W to pass over the stock conveyor 3 and to be carried onto the work table 10 of the right angle shear 2. Then, rough positioning is performed by bringing the plate material into contact with the end surfaces of the end locator 30 and the work holder 11 using a gripper.

Next, the positioning mechanism 20 is driven to position the plate material W. In this case, for example, if the size of the plate material W is as shown in FIG.
At the front end, square holes 15 and 17 for positioning references are formed by the punch press machine 1. Then, the proximity switch 33 detects the plate material W1. Based on the detection signal of the proximity switch 33, the two positioning devices 20 corresponding to the square holes 15, 17 are driven. Then, the cylinder 21 operates and the cylinder rod 23 protrudes. As a result, the rod 24 connected to the cylinder rod 23 projects upward, passes through the hole 29 of the work table 10 and each square hole 15, 11 of the work W, and projects above the work W.

In this state, the plate material W is moved by the gripper, and as shown in FIG. 2A, the wall surface of the square hole 15. ), and positioning in the X direction (horizontal direction) is performed by bringing the left end surface of the plate material Wl into contact with the end locator 30.

In this case, the reference hole 15.17 of the work W through which the rod 24 is inserted is a square hole, so unlike a conventional round hole, the rod 24 can be smoothly engaged with the reference hole 15.17. Performed with high precision. In this way, the work W
The positioning accuracy of item 1 can be improved, thereby improving the quality of the product.

Note that when the size of the plate material W is W8, the plate material is not detected by the proximity switch 33. As a result, each positioning device 20 corresponding to the square holes 15 and 16 is driven during positioning. It turns out. Even in this case,
The rod 24 is fitted into each of the reference holes 15, 16 smoothly and with high precision, and the positioning precision can be improved as well.

After the positioning is completed, the plate material W on the work table 10 is gripped by the work holder 11 and moved to a processing position, where a predetermined shearing process is performed.

〔Effect of the invention〕

In the plate material positioning device according to the present invention, a reference hole is formed in the plate material by the processing head, and a retractable positioning member that can engage with this reference hole is provided, so that the positioning accuracy of the plate material can be improved, and the product can improve the quality of

[Brief explanation of drawings]

Fig. 1 is a schematic plan view of a plate processing line employing a plate positioning device according to an embodiment of the present invention, Fig. 2A is a partial plan view of the plate positioning mechanism, and Fig. 2B is a partially cutaway side view thereof. , FIG. 3 is a diagram for explaining the positioning operation of the plate material. 1... Punch press machine, 2... Right angle shear, 5... Processing head, 15, 16.17... Square hole,
20...Positioning mechanism, 24...Rondo.

Claims (1)

[Claims] (1) A plate positioning device provided in a plate processing line having first and second processing machines for positioning the plate at a processing position, the device being provided in the first processing machine and used as a plate positioning reference. A plate material comprising: a processing head for forming a hole; and a positioning member retractably provided on the second processing machine so as to be able to engage with a reference hole formed in the plate material by the processing head. Plate positioning device on the processing line.