JPH02212037A - Carry-in, centering and carry-out device for joining material - Google Patents

Abstract

PURPOSE:To eliminate the need for a jig aligned to the shape of a joining material for carry-in and carry-out and to improve the efficiency of a carry-in and carry-out stages, etc., in the carry-in, alignment and carry-out device of a thin plate in the joining device executing the butt welding of mutual thin plates. CONSTITUTION:A welding torch 8 travels in the direction orthogonal with a paper face, so that a thin plate of a joining material is carried in toward the joining line of the center from the right and left, and carried out in the orthogonal direction with the paper face after being subjected to centering and welding. A support base 1 is provided at the lower part of the torch 8 and a clamp 2 is arranged at both sides of the torch 8. These coupled clamps 2 are freely liftable independently respectively and one part of the clamps 2 is freely movable horizontally. The clamps 2 can be located on a joining line at its end face because of its horizontal movement to the joining line side. At the outside of the clamp 2 a press roller 3 and driving roller 4 are provided and when a thin plate is pinched, the thin plate is carried in the joining line direction. The thin plate after joining is carried out by a carry-out roller 5 and belt conveyor 6.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a device for carrying in, centering and unloading a thin plate bonding material. More specifically, the present invention relates to a welding apparatus for butt welding thin plates of various shapes, which carries in the thin plates serving as the bonding material, aligns them, and carries out the joined thin plates.

[Conventional technology]

Conventionally, thin plates with a thickness of about 0.8 to 1.6 inches are
For example, it is used for forming automobile bodies by press working. In such thin plate processing, thin plate joining technologies such as high-frequency pulse TIG welding and laser welding are used to reduce scrap by reusing leftover materials generated in the pressing process and improving yields by dividing and joining used materials. By reducing the amount of leftover material left over, material costs can be reduced.

In the above-mentioned joining device, each mechanism carries the thin plate serving as the joining material under the welding torch, aligns (centers) the ends of the joining material on the joining line along which the welding torch travels, and carries out the joined thin plate. Conventionally, mechanisms as shown in FIGS. 5 to 7 have been employed.

FIG. 5 is a perspective view showing a conventional carrying-in mechanism, FIG. 6 is a perspective view showing a conventional centering mechanism, and FIG. 7 is a perspective view showing a conventional carrying-out mechanism. The bonding material (21) is pushed from the side toward the bonding line Q4 by the carrying cylinder while being guided to maintain a constant direction by a jig made to match the shape of the bonding material (21). Then join line Q
At least two positioning pins that can be raised and lowered protrude from position 4, and the front surface of the bonding material C21 is brought into contact with them. At this position, the bonding material (211) is held by the carrying jig and the carrying cylinder n, and after the positioning bin 4 is retracted, the other bonding material is brought into contact with the bonding material (21), and centering is completed. After the welding torch travels on the joining line to perform the joining, the joining material (21 ) is carried out in the direction of the joining line.

[Problem to be solved by the invention]

However, the conventional loading, centering, and unloading mechanisms require a specialized loading jig for the shape of the bonding material in the loading mechanism, which increases setup time and lowers the efficiency of the loading process. When the bonding surface of the thin plate that is the bonding material is brought into contact with the positioning pin, the bonding surface may be damaged or deformed.
There are problems in that it may cause welding defects during joining, and in the transport mechanism, a dedicated transport jig is required depending on the shape of the jointed material after joining, resulting in a long setup time and low efficiency in the transport process. .

The present invention has been made in view of the problems with the conventional apparatus, and does not require a special jig that matches the shape of the bonding material for loading and unloading, and prevents damage to the bonding surface during centering. It is an object of the present invention to provide a loading, centering, and unloading device that does not cause deformation.

[Means to solve the problem]

The present invention is capable of holding the bonding material by sandwiching it between a support stand disposed facing the welding torch and supporting the bonding material, and a support stand disposed on both sides along the welding line and supporting the bonding material on each side. It can be raised and lowered vertically with respect to the support base, and the end face facing the joint line on at least one of both sides has a contour that matches the joint line, and the position where the end face overlaps the joint line and A clamp that is movable laterally in a direction parallel to the support base so as to be able to take a position away from the joining line, and an upper carry-in roller and a lower carry-in roller on each side, which are arranged outside the clamps on both sides. , the upper input roller and the lower input roller are pressed against each other. a carry-in mechanism for laterally carrying the bonding material held between the clamp and the support base toward the bond line; and an upper carry-out roller disposed outside the clamps on both sides, on each side. and a carry-out mechanism which has a lower carry-out means and carries out the bonded material sandwiched therebetween in a direction parallel to the bond line by pressing the upper carry-out roller and the lower carry-out means against each other. Concerning loading, centering and unloading equipment.

C Effect] In the apparatus of the present invention, the loading and unloading of the bonding material is
Since this is done using rollers or belt conveyors that sandwich the bonding material from above and below, there is no need for a special jig depending on the shape of the bonding material.

In addition, since centering of the bonding material is performed by bringing the bonding material into contact with the end surface of a clamp whose contour matches the bonding line, excessive force may be applied locally to the bonding surface of the bonding material, causing scratches and damage. No deformation occurs.

〔Example〕

Next, the apparatus of the present invention will be explained based on the drawings.

FIG. 1 is a front view showing an example of the loading, centering and unloading device of the present invention.

In FIG. 1, (8) is a welding torch, which travels in a direction perpendicular to the plane of the paper. Therefore, the joining line passes under the welding torch (8) and is perpendicular to the plane of the paper. The thin plates, which are the joining materials, are carried in from the left and right toward the center joining line in Figure 1, and after being centered and welded,
It is carried out in the direction along the joining line, that is, in the direction perpendicular to the plane of the paper.

A support stand (1) is provided below the welding torch (8), and clamps (2) are placed on both left and right sides of the welding torch (8) across the joining line. The pair of clamps (2) can be raised and lowered independently by a clamp lifting mechanism (not shown), and at least one of the clamps can be moved laterally by a clamp lateral movement mechanism (not shown). The laterally movable clamp has an end face facing the joining line having a contour that coincides with the joining line,
By moving laterally toward the joining line, the end surface can be located on the joining line.

A plurality of press rollers (3) as upper carry-in rollers and a plurality of drive rollers (4) as lower carry-in rollers are provided on the outside of the clamp (2).

The pressing roller (3) can be raised and lowered by a carry-in roller lifting mechanism (not shown), and when the thin plate is pressed between it and the drive roller (4), the thin plate is carried in the direction toward the joining line.

A plurality of upper carry-out rollers (5) having rotational axes in a direction perpendicular to the rotational axis of the pressing rollers (3) are provided between the plurality of pressing rollers (3), and the plurality of driving rollers (4) ) A belt conveyor (6) serving as a lower conveying means is arranged in a direction parallel to the joining line. The upper carry-out roller (5) can be raised and lowered by a carry-out roller lifting mechanism (not shown), and is connected to the belt conveyor (5).
6) has at least one end raised and lowered by a conveyor raising and lowering mechanism (not shown). These unloading rollers (5
) and a belt conveyor (6) pinch the joined thin plates between them and convey them out in a direction parallel to the joining line.

There are no particular limitations on the type or structure of the clamp elevating mechanism, clamp lateral movement mechanism, carry-in roller elevating mechanism, ejecting roller elevating mechanism, and conveyor elevating mechanism.
Various mechanisms such as solenoids, cylinders using pneumatic or hydraulic pressure, and diaphragms can be used.

Next, each operation of carrying in, centering, and carrying out in the apparatus of the present invention will be explained.

FIG. 2 is an explanatory diagram showing a loading operation in the apparatus of the present invention. On the left and right sides of the figure, press rollers (3
) and the drive roller (4), respectively.
A bonding material (7a) and a second bonding material (7b) are inserted. Then, when the press roller (3) is lowered, the first bonding material (7a) and the second bonding material (7b) are
It is carried toward the welding torch (8). Note that the pair of clamps (2) are brought into contact with the support base (1) with a slight distance from each other.

Since the first bonding material (7a) and the second bonding material (7b) are carried in by being sandwiched between the rollers from above and below, the device of the present invention has versatility with respect to material shapes,
There is no need for a special jig that matches the shape.

Figures 3a to 3c are explanatory diagrams each showing a centering operation in the device of the present invention.

First, as shown in FIG. 3a, the end surface of one horizontally movable clamp (2b) facing the joining line is moved laterally to the joining line and brought into contact with the support base (1). The other clamp (2a) is in a raised position. In this state, the first bonding material (7a) on the side where the clamp (2a) is rising
is further carried toward the center, and its joining surface is brought into contact with the end surface of the clamp (2b) located on the joining line. The holding roller (3) and the drive roller (4) continue the loading operation, and the roller and the bonding material slip, and during this time, the first bonding material (7a) is moved until its bonding surface contacts the entire end surface of the clamp (2b). Change direction if necessary.

Next, as shown in Figure 3b, the clamp (2a) that had been raised lowers and the first
The bonding material (7a) is clamped. At this time, the press roller (3) carrying the first bonding material (7a) is raised. Further, the laterally movable clamp (2b) whose end face has been advanced to the joining line rises, moves laterally, and retreats. Therefore, the clamp (2b) on the right side of the figure and the support stand (
1), a gap is created in which the second bonding material (7b) can be introduced, and the press roller (3) on the right side in the figure descends, and the second bonding material (7b) is moved in.
The bonding material (7b) is carried toward the bonding line.

Next, the second bonding material (7b) is attached to the first bonding material located on the bonding line.
It is brought into contact with the bonding surface of the bonding material (7a).

The presser roller (3) and the drive roller (4) on the right side of the figure continue the carrying operation, and the rollers and the bonding material slip, and during this time, the second bonding material (7b) has a bonding surface that is similar to the first bonding material (7b).
Change the direction if necessary until the entire joint surface in a) is touched. Thereafter, as shown in Figure 3c, the clamp (2b) on the right side of the figure is lowered, the second joining material (7b) is clamped between it and the support base (1), and it is joined with the welding torch (8). will be carried out.

Since centering is thus performed by applying the bonding surface of the first bonding material (7a) to the entire end surface of the clamp (2b), excessive force is not locally applied to the bonding surface.
This prevents scratches and deformation of the joint surfaces that may cause welding defects.

FIG. 4 is a side view showing the unloading mechanism in the apparatus of the present invention, and is an explanatory view showing the unloading operation.

As shown in Fig. 4, the delivery roller (5) descends as shown by the arrow in the figure, and one end (left end in the figure) of the belt conveyor (6) rises as indicated by the arrow in the figure. By doing so, the bonding material (7) after bonding is sandwiched and carried out.

Therefore, the bonding material (a jig that matches the shape of the sword) is not required, and the material can be efficiently transported.

Note that a control system may be provided that automatically performs a series of loading, centering, and unloading operations, and in that case, the efficiency of these operations can be further improved.

〔Effect of the invention〕

As described above, in the apparatus of the present invention, there is no need for a special jig that matches the shape of the bonding material for loading and unloading, so the efficiency of the loading and unloading processes is improved.

Further, since positioning for joining is performed by surface-to-surface contact, no damage or deformation occurs on the joining surfaces, and welding defects during joining are reduced.

Fig. 1 is a front view showing an example of the device of the present invention, Fig. 2 is an explanatory diagram showing the loading operation in the device of the present invention, and Fig. 3a to 3
0 is an explanatory diagram showing the centering operation in the device of the present invention, FIG. 4 is an explanatory diagram showing the unloading operation in the device of the present invention, and FIG. 5 is a perspective view showing the conventional loading mechanism.
FIG. 6 is a perspective view of a conventional centering mechanism, and FIG. 7 is a perspective view of a conventional unloading mechanism.

(Main symbols on drawings) (1) Two support stands (2): Clamp (3): Holding roller (4): Drive roller (5): Unloading roller (6): Belt conveyor (7): Bonding material

[Brief explanation of the drawing]

1st Cause support stand 6-+ Retcon Gya Figure 2 Fifth mouth

Claims (1)

[Scope of Claims] 1. A support stand disposed opposite the welding torch and supporting the bonding material; and a support stand disposed on both sides along the welding line, with the bonding material sandwiched between the support stands on each side. It can be raised and lowered in the vertical direction with respect to the support base so that it can be held with a clamp that is movable laterally in a direction parallel to the support base so as to be able to take a position overlapping the joint line and a position away from the joining line; a carry-in mechanism having rollers and carrying the bonding material sandwiched between the clamp and the support table from the side toward the bonding line by pressing an upper carry-in roller and a lower carry-in roller against each other; , which is disposed outside the clamps on both sides, and has an upper carry-out roller and a lower carry-out means on each side, and the upper carry-out roller and the lower carry-out means are pressed against each other, so that the bonded material after bonding is held between them. A device for carrying in, centering, and carrying out thin plate bonding material, consisting of a carry-out mechanism that carries out in a direction parallel to the bonding line.