JPS6195727A - System of sheet metal working line - Google Patents

Abstract

PURPOSE:To utilize the space in a factory by carrying in and out a sheet metal stock and a worked sheet metal to and from a sheet metal working line through a caterpillar-type unmanned carriage. CONSTITUTION:A sheet metal W stock carried in a carry-in station 6 by an unmanned carriage 5, is set on the table 1a of a punching press 1 in a working line 4 and is moved to be worked. Next, the sheet metal W is transferred onto the table of a shearing machine 3 to cut it, and then is carried out of the working line 4 to transfer it onto the carriage 5. That is, the connection between respective stations 6, 22 for carrying in and out the sheet metal W and the loading and discharging areas of sheet metal stock and worked sheet metal is performed by the caterpillar-type unmanned carriage 5. The carriage 5 is automatically operated and turned to be positioned, etc. through an dielectric wire laid under the floor, a proximity switch housed in the carriage body and a travel control device, etc. In this way, the space of factory is effectively utilized.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention is applicable to sheet metal a for punch press machines, shearing machines, etc.
Concerning a sheet metal processing line system consisting of Roe machine tools.

2. Description of the Related Art In a sheet metal processing line consisting of the above-mentioned punch press machine, shearing machine, etc., raw sheet metal is carried into the processing line and processed sheet metal is carried out.

This is carried out using a conveyor line or a trolley cart that moves on rails, but if the Toro 13 cart that moves on the conveyor line or rails is used, the conveyor line, cart rails, etc. move within the factory premises. vertical(
The effective utilization rate of the factory premises will be extremely low.

Additionally, since the conveyor lines, trolley rails, etc. mentioned above are semi-permanently installed on the factory floor, 1. For example, sheet metal drilling using only one punch press requires a new shearing machine to be added to the processing line. Even if an attempt was made to increase the functionality of the processing line by expanding it, it would be difficult to remove the conveyor line, trolley rails, etc., so the above modifications,
Problems to be Solved by the Invention There are restrictions such as virtually impossible expansion.This invention attempts to solve the above-mentioned problems and restrictions.

Means to solve problems This invention aims to solve the above problems.

A practical example in which a trackless automatic guided vehicle is used to carry in raw sheet metal and carry out processed sheet metal.The following is an example of a practical example based on drawings.Figure 1 shows a turret punch press machine m and a right-angle shearing machine. A sheet metal processing line (4) in which a shearing machine (3) having a blade (2) and a shearing machine (3) are connected in series.
), and the sheet metal material □□□ transported to the loading station (6) position by the automatic guided vehicle (5), which will be described in detail later, is shown in the above sheet metal processing line (4) diagram. It is transferred onto the mounting table (1a) of the Talevt punch press machine (1) by a vacuum-type loader device (not shown) that moves along the middle X-axis direction, and the mounting table (1
a) The work carriage (force) is moved freely in the X and Y axis directions by the work holder (8) to drill a predetermined hole, and then the shearing machine (3) is moved again by the loader device. It is transferred onto the mounting table (3a), and is freely moved on the mounting table (3a) in the X and Y axis directions by the work carriage (9) and work holder (11) in the same manner as above. Each rectangular sheet metal W after shearing is sheared into a predetermined rectangular shape, and then passed through discharge conveyors (12) and (13) connected to the side of the shearing machine (3) to the outside of the processing line (4). Waiting automated guided vehicle (5
) on the pallet (P).

(14) (15) NC control board for Talezto punch press machine and shearing machine, (16) is for shearing machine (3
) is a device for positioning the sheet metal W on the mounting table (3a), and (17) and (18) are end locators for positioning on the tables of the turret punch press machine (1) and shearing machine (3), respectively. (19) is a column of the support frame of the loader device.The above example is an example of a sheet metal processing line.

The processing line may be additionally equipped with an N-ending device or the like, or may be simply a processing line with a shearing function consisting of a single turret punch press or shearing machine.

In the above example, a pair of support stands (21) installed on the side of the Talevt punch press machine (1) into which the automatic guided vehicle (5) can enter are used as the stage for carrying the raw sheet metal into the processing line. The terminal position of the discharge conveyor (13) is set at the carry-out station (22) from the processing line, and the positions of the carry-in and carry-out stations (6) and (22) are exactly the same as shown in the figure. The loading area for raw sheet metal W and the discharge area for processed sheet metal (a) are connected by the following trackless automatic guided vehicle (5).

In other words, the loading and unloading stations (6) (22)
In this example, unmanned transportation The car (5) detects this guide line (23) and moves along the guide line (23).
23). As shown in Fig. 2.3, this automatic guided vehicle (5) has a pallet mounted on the upper part of the m-body (5a) that is raised and lowered by a cylinder device (not shown).
It has a support frame (24) for lifting and lowering the vehicle body (5a), and it moves forward and backward using a pair of drive wheels (25) provided on the left and right sides on the underside of the vehicle body (5a), and along an arbitrary curve by speed sharing between the left and right wheels (25). It is now possible to drive around curves, but the same
The proximity switch (26) installed on the underside of the body (5a) detects the iron piece (28) attached at a predetermined location on the floor (27) to decelerate, stop, and rotate around the center of the body (5a). It can perform various movements such as turning.

For example, in the processing line system shown in FIG. 1, iron pieces (28) are attached to the floor at point A, where the automated guided vehicle (5) rotates, and at points B and C, where it is stopped and positioned.

As shown in FIGS. 2 and 3, inside the vehicle body of the automatic guided vehicle (5), a drive motor (29) directly connected to the drive wheels (25) and the rotation speed of the drive motor (29) are detected. A computer (32) connected to each rotary encoder (31) that sends and receives signals between the drive control device (32) and the proximity switch (26) and controls good running. 33) is installed. The computer (33) has an antenna (34) consisting of a pickup coil that detects the guide wire (23).
is connected.

(35) is a positioning cone (
36) is an elevating body having a conical concave surface that fits into the
(37) is a cylinder for lifting and lowering the lifting body;
(38) are front and rear bumpers, and (39) are caster-like driven heavy wheels.

The automatic guided vehicle (5) in this example is as shown above.
For example, if the iron piece (28) on the floor (27) is attached to the floor with the arrangement pattern changed according to the movement of the carrier (5) at the stop position, the iron piece (28) can be attached to the floor according to the arrangement pattern. The conveyance vehicle (5) decelerates and stops, and performs a predetermined operation such as a turning operation.

In other words, 1. For example, simply decelerate and stop the transport vehicle (5)\
If the urinary stones are located at the two proximity switches (26) on the inside of the four proximity switches (26), attach iron pieces (28) to the urinary stones (Fig. 3) and remove the transport vehicle (5). If the robot is to be rotated to the right after stopping, iron pieces (28) are pasted on the floor at the two proximity switches (26) on the right side of Figure 3;
The arrangement pattern is changed, such as by attaching iron pieces (28) to the floor at the two proximity switch (26) positions on the left side of the figure.

In addition, as mentioned above, in this practical example, an automatic guided vehicle (5) that runs while detecting a guide wire (23) buried under the floor surface using an electromagnetic induction method is used. An optically guided automated guided vehicle that moves while using an optical sensor to detect the white guidance tape or guidance line that has been pasted or painted.

Alternatively, an automatic guided vehicle guided by various methods may be used.

Next, to explain the operation contents of the above-mentioned actual example system, on the automatic guided vehicle (5), material sheet metal is loaded with a pallet in the material sheet metal loading area (not shown),
It is transported along the guide line (23) to point A near the loading station (6).

At point A, iron pieces (28) are attached to the floor according to the arrangement pattern described above, so the iron decelerates and stops, and at the same time rotates to the left (7), that is, the computer (33) controls the running. The direction of one rotation of the drive wheel (25) is controlled via the rotation device (32), and in the case of the above-mentioned stop and rotation, the drive wheel (25) that is being driven and rotated in the same direction is decelerated to a stop. First, the left and right drive wheels (25) rotate at the same number of rotations in different directions.

As a result of the above operation, the transport vehicle (5) changes its attitude from the one-dot chain line to the two-dot chain line at point A in Figure 1.
Next, the transport vehicle (5) moves forward again and reaches the loading station (
6) enters between the pair of support stands (21), detects the iron piece (28) also affixed at that position, and stops. After stopping, the elevating body (35) is lowered to fit into the cone (36), and after accurately setting the position of the conveyor (5), the support frame (24) is raised and lowered. The sheet metal W is transferred together with the pallet (t) to the carry-in station (6).

Removal of the conveyance vehicle (5) after delivery is performed by the reverse operation to that described above, but since the conveyance vehicle (5) in this example can rotate on its axis as described above, the support stand (21) of the carry-in station (6)
) is provided in a direction perpendicular to the traveling direction as shown in the first figure, there is no need to make the guide wire (23) of the transport vehicle (5) unnecessarily large, and from that point of view, The factory site will be used effectively.

In addition, the automatic guided vehicle (5) on the unloading station (22) side
) will operate as follows: The iron piece (28) and cone (36) are similarly provided on the floor of the unloading station (22) a'f''s, and the automatic guided vehicle (5) is stopped in the same way as above.

The processed sheet metal (A) that has been positioned and stopped at the station (22) and discharged from the conveyor (12) (13) is placed on the pallet (2) on the stopped automatic guided vehicle (5). It falls into the interior and is deposited. When an appropriate number of D-loed sheet metals (a) have been deposited, the automatic guided vehicle (5) ascends the elevating body (35) and releases the positioning state.

It moves along the guide line (23) to the processed sheet metal discharge area.

The start end of the conveyor (13) can be flipped up, and a box (41) for scraping and scraping is placed at the bottom of the conveyor (13). Instead, place an automated guided vehicle (5) at the relevant location.
Further, a stop station similar to the support stand (21) may be provided between the loading area for the raw sheet metal and the carry-in station (6) and between the discharge area and the carry-out station (22) for the processed sheet metal. 1
Temporary storage stations (43), (44), and (45) for pallets (4) consisting of pairs of support stands (42) may be provided.

Of course, workers can pass along the floor along the guide line (23), and if you want to attach optical guide tape instead of the guide line, you can simply re-attach the tape. It is possible to change the travel course of the automatic guided vehicle (5) and change the positions of the sheet metal loading and unloading stations (6) and (22).

Since the sheet metal is brought in and taken out using the effects of the invention, the effective use of the factory premises can be greatly achieved, and furthermore, it is easy to improve the functionality by changing or expanding the processing line.

Further, it is extremely easy to communicate with the sheet metal line and an automated warehouse serving as a loading area for raw sheet metal and a discharge area for processed sheet metal.

[Brief explanation of drawings]

Figure 1 is a diagram of the factory rework and i diagram of the sheet metal processing line. FIG. 2 is a plan view showing an example of an automatic guided vehicle, and FIG. 3 is a schematic front view of the same. (1)...Turret punch press machine (3)...
Shearing machine (4)...Sheet metal processing line (5)...Automated guided vehicle (61...Carry-in station (22)...-Carry-out station (23)...
Guide wire (a)・・・Sheet metal.

Claims (1)

[Claims] A trackless automatic guided vehicle is used to carry raw sheet metal into a sheet metal processing line consisting of sheet metal processing machine tools such as punch press machines and shearing machines, and to carry out processed sheet metal from the sheet metal processing line. sheet metal processing line system.