JPS6218386A - Method of working and assembling steel plate - Google Patents

Abstract

PURPOSE:To simplify the control of parts and automate the assemblage by cutting off a single steel plate on a cutting conveyer surface plate to provide large and small parts constituting subassemblies of a hull to transfer the large parts to a subassembly conveyer surface plate and connect the small parts to the large parts. CONSTITUTION:When subassembly members are produced by welding small parts C to plate-like large parts B, a single steel plate A supplied by a supply conveyer 10 is cut off to provide small and large parts C and B. Each cutting is carried out on cutting conveyer surface plates 11, 12 so that small cut parts C are transferred to assembling surface plates 14-16 by transfer conveyers 17, 18. The large parts B are transferred to the subassembly surface plates 14-16 as they are to be welded to the small cut parts C. By thus cutting off the same steel plate A to provide the large and small parts B, C used for the same subassembly can be simplified the control of parts and automated the assemblage.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a method for processing and assembling steel plates.

BACKGROUND OF THE INVENTION Conventional techniques and their problems For example, in the process of building a ship, etc., when small parts are welded to a large plate-shaped part to produce a small assembly member, the conventional method is as follows.

First, parts are cut out from a steel plate using an NC cutter or the like on a cutting conveyor surface plate, residual materials are processed, and only the parts are displayed on the cutting conveyor surface plate.

Next, on the sorting stage, these parts are sorted by destination, and the sorted parts are transported to the small assembly stage using a trolley or crane. Then, the large parts and small parts used for one small assembly member are placed on the small assembly surface plate, and the small parts are attached to the large part and welded.

However, conventionally, parts used in different small assembly members are cut out from one steel plate, and large parts and small parts used in one small assembly member are cut out from different steel plates. Therefore, it is necessary to sort and arrange the parts as described above, which requires a relatively large amount of labor. Also, 1
It is extremely difficult to match the timing of machining the large and small parts used in one small assembly, and it is necessary to keep the parts that have been processed first in stock until the necessary parts are available. This impedes improvement in the efficiency of machining processes and small assembly processes, and also makes it difficult to automate small assembly processes.

An object of the present invention is to provide a steel plate processing and assembly method that solves the above-mentioned problems and makes it possible to improve the efficiency of processing steps and small assembly steps and to automate the small assembly steps.

Means for Solving the Problems The method according to the present invention involves cutting the large parts and small parts to be used for one small assembly part on a cutting conveyor when manufacturing a small assembly part by welding a small part to a large plate-shaped part. This method is characterized by cutting a single steel plate on a surface plate, transferring the large parts from the cutting conveyor surface plate to the small assembly conveyor surface plate, and attaching and welding the small parts onto the large parts.

EXAMPLES Hereinafter, the present invention will be described in detail with reference to the drawings. In addition, in the following description, front, rear, left, and right shall refer to the advancing direction of the steel plate.

That is, the right side of FIG. 1 is the front, the left side is the rear, the upper side is the left, and the lower side is the right.

FIG. 1 shows steel plate processing and assembly equipment.

This equipment includes an 0-RA conveyor (10) for carrying in steel plates (abbreviated as the carrying conveyor), a conveyor for cutting small parts, and a surface plate (11).
(abbreviated as small part surface plate), large part cutting conveyor surface plate (12
) (abbreviated as large surface plate), sorting is done using a conveyor fixed 'II (1
3) (abbreviated to surface plate for sorting), roller conveyor for material distribution (
1, 4) (abbreviated as material distribution comparator V), a roller conveyor for installation (15) (abbreviated as installation conveyor), and a roller conveyor for welding (16) (abbreviated as welding conveyor), which are mutually They are arranged in the above order from back to front at predetermined intervals. In addition to these, there is also a belt conveyor (17) for carrying out small parts extending from below to the right between the small part surface plate (11) and the large part surface plate (12) (abbreviated as the small part carrying out conveyor), and a large part surface plate ( A belt conveyor (18) for carrying out leftover materials extends from the bottom to the right between 12) and 1 (13) (abbreviated as the leftover conveyor).
is provided.

The carry-in comparator It (10) is provided with a seam stopper (19) consisting of a roller. As shown in detail in Fig. 2, the small object surface plate (11) and the large object surface plate (12) are composed of slat conveyors, and these slats (2G)
Steel plate support plates (22) and (23) for horizontally supporting the steel plate (A) are attached to (21) with bolts (paths shown) so that they can be replaced. In addition, an NC cutting machine (
24) and (25) are provided, respectively. As shown in detail in FIG. 3, the sorting surface plate (13) consists of a pan conveyor, and large parts (B) are supported horizontally on the upper surface of a pan (26).

Moreover, a series of small assembly conveyor surface plates are constituted by the material distribution conveyor (14), the mounting conveyor (15), and the welding conveyor (16).

In the above equipment, cutting and assembly of the steel plate (A) are performed as follows.

First, a steel plate (A) is supplied to the carry-in conveyor (10) and set in parallel by the seam stopper (19), and this steel plate (A) is transferred from the carry-in conveyor (10) to the small object surface plate (11) and placed at a predetermined position. and cut the small part (C) using the NC cutting machine (24). Next, this steel plate (A) is transferred from the small object surface plate (11) to the large object surface plate (12) and positioned at a predetermined position. The steel plate (A) passes from the small object surface plate (11) over the guide roller (27) and guide plate (28) to the large object room! 1 (12), and at this time, only the small parts (C) cut out first fall from the straws of the small part compartment II (11) and the large part compartment II (12) onto the small part carry-out conveyor (17). This conveyor (17) transports it to the right. Next, the large surface plate (12) is cut by the NC cutting machine (25).
The large part (B) is cut from the steel plate (A) positioned above, and the remaining part is roughly cut to an appropriate size. Next, this large part (B) is transferred from the large part surface plate (12) to a sorting surface plate (13) and positioned at a predetermined position.

At this time, only the large parts (B) passed from the large part surface plate (12) over the guide rollers (29) and the guide plate (30), were transferred to the surface plate (13) for sorting, and were cut from the remaining parts. All remaining materials (D) are handled on a large surface plate (12) and sorted on a surface plate (
13) onto the remaining material carry-out conveyor (18),
This conveyor (18) transports it to the right. The remaining material (D) on the remaining material carrying-out conveyor (18) is put into a packet or the like by a magnetic hoist (not shown) or the like. Next, for sorting, the large parts (8) positioned on the surface plate (13) are manually cut, such as bevel processing and taper processing. Next, this big part (B)
For sorting, the materials are transferred from the surface plate (13) to the distribution conveyor (14) and positioned at a predetermined position. On the other hand, a conveyor for discharging small items (
The small parts (C) carried out by step 17) are received in packets (not shown) and moved near the material distribution conveyor (14) by an appropriate means such as a trolley or crane.
. Then, the small parts (C) are arranged on the large parts (B) positioned on the material arrangement conveyor (14). next,
The large part (B) is transferred from the distribution conveyor (14) to the attachment conveyor (15) and positioned at a predetermined position, and the small part (C) is temporarily attached to the large part (B).

Next, this is transferred from the mounting conveyor (15) to the welding conveyor (
16), position it in the specified position, and remove the large part (B).
The small parts (C) are welded to the small parts (C) to complete the small assembly.

In addition, as described above, while one steel plate (A) and the large part cut out from it (B) are being processed while being sent forward, the next steel plate and the large part cut out from it are being processed while being sent forward in the same way, Continuously processes and assembles steel plates.

The assembly work of the small assembly members can also be carried out by an automatic assembly device as shown in FIG. 4, for example.

This automatic assembly device has a small assembly conveyor surface plate (31), which is placed in front of the surface plate (13) for sorting and sends large parts (B) forward, and a conveyor surface plate (31) that is placed front and rear on the right side of the contact area between the conveyor all (31). A movably arranged small parts supply table (32), a pallet (33) with an approximately inverted U-shape in cross section and a pallet (33) which is movable back and forth on the right side of this table (32), and a pallet (33) on the right side of the pallet (33). Arranged small parts supply stand! (34), a small parts supply device (35) arranged above the pallet (33) and the small parts supply stand (32), and a small parts supply stand (32).
2) and a small parts material distribution tacking device (36) placed above the conveyor surface plate (31), and a conveyor surface plate (31).
Welding equipment located above the front of! i (37).

The small parts supply table (32) and the pallet (33) are placed on a rail (not shown) and move back and forth along the rail. A pair of vertical support rods (38) are provided at a plurality of locations on the front and rear of the upper surface of the small parts supply table (32), one on each side. A pair of left and right positioning brackets (39) are fixed to the upper surface of the pallet (33).

The small parts upright device (34) consists of a fixed base (4G) placed on the right side of the pallet (33) and a second part attached to the base (40) so that one end can rotate around the front-rear horizontal axis. 1
An arm (41), a second arm (42) attached to the other end of the first arm (41) so that one end can rotate around a longitudinal horizontal axis; A third arm (43) is attached to the other end so that one end rotates around the longitudinal horizontal axis, and when the third arm (43) becomes vertical, it rotates around the horizontal horizontal axis. The fourth arm (43) has one end attached to the other end of the third arm (43) so as to be movable.
It consists of an arm (44) and an electromagnetic suction cup (45) fixed to the other end of the fourth arm (44).

Small parts supply bag! (35) is a small parts supply stand (32)
A pair of left and right columns (46) placed on the left side of the pallet and the right side of the pallet (33), a guide rod (47) horizontally stretched between these columns (46), and a guide rod (47) that can be moved left and right. A moving body (48) attached to the moving body (48), a pair of left and right vertical bar-shaped elevating bodies (
49) and a small parts gripper (50) attached to the lower end of each elevating body (49).

The small parts distribution temporary attachment device (3G) is a conveyor surface plate (31
) and two pillars (51) arranged on the right side of the small parts supply table (32), a rectangular frame (52) with four corners supported at the upper ends of these pillars (51), A longitudinal moving body (54) attached to the guide portions (53) on both the left and right sides of the frame (52) so as to be movable back and forth, a guide rod (55) horizontally passed between the left and right moving bodies (54), and a guide A left and right moving body (56) is attached to a bar (55) so as to be movable left and right, a pair of left and right vertical bar-shaped lifting bodies (57) are attached to the left and right moving body (56) so that they can be raised and lowered, each of the lifting bodies (
Small parts gripper (58) attached to the lower end of
) and a tacking machine (59). Tack II (59)
is equipped with a pair of front and rear angle-adjustable torches (60).

The welding device (37) has two pillars (61) placed on both the left and right sides of the conveyor surface plate (31), and a left pillar (61).
) and a pair of left and right horizontal connecting rods (62) connecting the upper ends of the right column (61), and a plurality of front and rear guides horizontally passed between the left and right connecting rods (62). A rod (63), a movable body (64) attached to each guide rod (63) so as to be movable left and right, a vertical rod-shaped elevating body (65) attached to each movable body (64) so as to be movable up and down, and each elevating body. (65) Welded ti1 (
6B). The welding machine (66) includes a pair of front and rear angle-adjustable torches (67).

The large part (B) and small part (C) cut from one steel plate (A) as described above are welded together in the automatic assembly apparatus described above as follows.

First, as described above, the small parts (C
) are stacked on a pallet (33), and as shown in Figure 6, an automatic guided vehicle (69
) is used to lift the pallet (33), transport it to the automatic assembly device, and set it on a predetermined rail. Then, as described below, the small parts (C
) one by one on the front and rear support rods (
38). In other words, first of all, get up! f
The suction cup (45) of (34)
) and lift it up (see Figure 5(a)), rotate the fourth arm (44) to stand up the small part (C) (see Figure 5(b)), and supply IA Ii (35). (7) 'J
'J Collar (50) t' Grasp the top of the small part (C) (see figure (C)) and move the suction @ If (45) away from the small part (C) (see figure (d))), The component (C) is moved directly above the supply table (32), and its left and right end portions are respectively fitted between a pair of front and rear support rods (38) to hold it in an upright state. On the other hand, the sorting is fixed at 1! (1=3) The large part (B) that has undergone the predetermined processing above is transferred to the small assembly conveyor surface plate (31) and positioned at a predetermined position at the rear thereof. Then, as shown below, the temporary attachment bag M (3
6), the small parts (C) on the supply stand (32) are placed one by one on the large parts (B) and temporarily attached. That is,
First, the material distribution tacking device! (3B) left and right grippers (58
), grasp the upper part of the small part (C) on the supply stand (32), lift it upwards from the support rod (38), position it at a predetermined position on the large part (B), and then use the tacking machine (5
9), temporarily attach the portions of the small component (C) near both left and right ends to the large component <8). When the temporary attachment of all the small parts (C) is completed, the large parts (C) are moved by the conveyor surface plate (31)
Move B) forward and position it at a predetermined position. The welding device (37) then converts the small part (C) into the large part (
Weld to B) to complete the small assembly material.

In the above embodiment, a small object surface plate (11) and a large object surface plate (1
2) Small parts (C) and remaining materials (D) falling from the front end of
) are received by conveyors (17) and (18) and carried out, but these may also be received directly in packets or the like. Further, in the above embodiment, there is one line for processing and assembling steel plates, but it is also possible to have two or more lines. In addition, if there is a large difference in processing between cutting small parts and cutting large parts, it is recommended to install multiple NC cutting machines on the side with a large amount of processing to equalize the processing time. It is preferable to do so.

Effects of the Invention According to the present invention, since the large parts and small parts used for one small assembly member are cut from one steel plate, there is no need to match the processing timing of the large parts and small parts.
It is possible to save labor in sorting parts and distributing materials, and to reduce inventory. Therefore, it is possible to unify the processing area, reduce the area, and improve the efficiency of the processing process and small assembly process. Further, since large parts cut on the cutting conveyor surface plate can be transferred as they are to the small assembly conveyor surface plate, it is possible to automate the small assembly process.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a schematic perspective view of steel plate processing and assembly equipment, and FIG. 2 is an enlarged view of the connecting portion between the small parts cutting conveyor surface plate and the large parts cutting conveyor surface plate. Figure 3 is an enlarged side view showing the connecting part of the conveyor surface plate for cutting large parts and the conveyor surface plate for sorting;
FIG. 4 is a perspective view of the automatic assembly device, FIG. 5 is a side view sequentially showing the operation of the small parts raising device of the automatic assembly device, and FIG. 6 is a front view showing a pallet and its automatic guided vehicle. (11)...small parts cutting conveyor surface plate, (12)...
... Large parts cutting conveyor surface plate, (14) ... Roller conveyor for material distribution, (15) ... Roller conveyor for installation, (16) ... Roller conveyor for welding, (31) ...
・Small assembly conveyor surface plate, (A>...steel plate, (B)...
・Large parts, (C)...Small parts. 4 people other than above

Claims (1)

[Claims] When manufacturing a small assembly member by welding a small part to a large plate-shaped part, the large part and the small part used for one small assembly member are cut into one steel plate on a cutting conveyor surface plate. A method for processing and assembling steel plates, which comprises cutting the large parts from a cutting conveyor surface plate to a small assembly conveyor surface plate, and attaching and welding the small parts onto the large parts.