JPH027756B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electron beam welding device, and in particular to a large-sized electron beam welding device that transfers a workpiece to be welded onto a welding jig table using equipment other than human power. It is related to.

Conventionally, there has been a device of this type as shown in FIG. In the figure, the bottom is attached to the base 1,
The welding room 2 consists of side walls and a ceiling, and a door 4 is provided on one or both of the side walls and can be opened and closed with a hinge or slide, and has a vertical mating surface 3.
A vacuum seal 5 was built into the mating surface 3 of either the welding chamber 2 or the door 4, so that the interior of the welding chamber 2 could be maintained in a vacuum. Inside the welding chamber 2, there are a first welding jig table 7 on which the workpiece 6 is attached, a second welding jig table 8 for rotating or vertically displacing the first welding jig table 7, Furthermore, a third welding jig table 9 for displacing these in the horizontal direction is housed, and using the functions of these welding jig tables 7, 8, and 9, the welding jig tables 7, 8, and 9 can be installed on the ceiling or outside of the side wall of the welding room 2. The welding part of the workpiece 6 is aligned with the position of the electron beam irradiated from the electron gun 10, and welding is performed.

In the above configuration, the work of attaching and detaching the workpiece 6 to the first welding jig table 7 is performed on the other second and third welding jig tables 8 and 9.
to move the workpiece 6 to a position close to the door 4 and stop it. After opening the door 4, move the workpiece 6 to the transfer device installed outside the welding room 2. Therefore, a method has been adopted in which the workpiece 6 to be welded is moved in the horizontal direction shown by arrow A, and further moved in the vertical direction shown by arrow B if necessary.

FIG. 2 shows another conventional example, in which inside the welding chamber 2,
A movable cart 12 is equipped with a workpiece to be welded 6 and all of the first, second, and third welding jig tables 7, 8, and 9, and is movable on a rail 11 disposed on the floor of the welding room 2. It has a stored configuration.

In such a configuration, the work of transferring and removing the workpiece 6 to the first welding jig table 7 is carried out by opening the door 4 and moving the workpiece 6 to the first welding jig table 7 using a pedestal placed at a position facing the opening of the welding chamber 2. The rail 14 provided on the welding chamber 13 and the rail 11 are connected by the connecting rail 15, and then the movable trolley 12 is pulled out in the direction of arrow C, and the workpiece 6 to be welded is transferred outside the welding room 2. Ta.

However, in the conventional large-scale electron beam welding equipment shown in FIGS. 1 and 2, the mating surface 3 between the welding chamber 2 and the door 4 is vertical, so that It is not possible to transfer the workpiece 6 to a certain first welding jig table 7 from above. In addition, the method shown in FIG. 1 requires a device to horizontally move the workpiece 6 and is difficult to perform the work, while the method shown in FIG. 13, rails 11, 14, connecting rails 15, etc., and also: a) the internal volume of the welding chamber 2 becomes large;

b. A floor base outside welding room 2 is required.

c. Control and work time are required to move the mobile cart 12 in and out of the welding room 2.

There were other drawbacks.

This invention was made in order to solve the above-mentioned drawbacks, and has a rectangular parallelepiped welding chamber with a front lower side and a
The main body and the lid are divided into two by an inclined plane that is located in the middle of the upper surface and includes a straight line parallel to the lower side, and the lid is divided into two parts by a pair of guide members provided vertically in parallel along the inclined plane. To provide an electron beam welding device in which a workpiece to be welded can be taken in and out of a welding chamber by only an easy-to-operate and inexpensive lifting device by supporting it so that it can be moved laterally and opening and closing a main body opening.

The present invention will be described below with reference to an embodiment shown in FIGS. 3 and 4. In the figure, a rectangular parallelepiped welding chamber 22 mounted on a base 1 is connected to a main body 22a and a lid by an inclined plane c including a lower side a of the front surface and a straight line b parallel to the lower side a at the middle part of the upper surface. It is divided into two parts 22b and 22b. The mating surfaces 23a and 23b of the main body 22a and the lid part 22b are flanged, and the vacuum seal 5 is incorporated in the mating surface 23a.

A pair of parallel guide members 24a and 24b provided outside the welding chamber 22 along the above-mentioned inclined plane support the lid part 22b so as to be able to move laterally.
The opening of the main body 22a is opened and closed by the lateral movement of the main body 22a.

Other than that, the same symbols as in Fig. 1 are the same parts.
The explanation will be omitted.

With the above configuration, the work of attaching and detaching the workpiece 6 to the first welding jig table 7 is performed by moving the lid body 22b in the direction of arrow D as shown in FIG. Open the main body 2 of the welding chamber 22 using the second and third welding jig tables 8 and 9.
The workpiece 6 to be welded can be taken in and out of the welding chamber 22 as shown by arrow E by moving the first welding jig table 7 in the opening 2a and using a lifting device (not shown). .

During welding, the lid portion 22b is moved laterally to the main body 22.
a and mating surfaces 23a and 23b, and welding is performed while keeping the welding chamber 22 in a vacuum state.

As a result of the above, compared to conventional equipment, a) equipment such as a horizontal pick-up device or a moving trolley is not required for the work of transferring objects to be welded.

b Since the workpiece can be attached and removed only from above, the work is easy and can be done in a short time.

c. There is no need for a floor base outside the welding room for transferring objects to be welded.

etc., the effect is great.

[Brief explanation of drawings]

1 and 2 are side sectional views of a conventional device, FIG. 3 is a side sectional view of an embodiment of the present invention, and FIG. 4 is a perspective view. DESCRIPTION OF SYMBOLS 1... Base, 5... Vacuum seal, 6... Work to be welded, 7, 8, 9... First, second, and third welding jig tables, 10... Electron gun, 22... Welding room ,
22a...Main body, 22b...Lid, 24a, 24
b... Guide member, c... Inclined plane. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of Claims] 1. An electron beam welding device that is equipped with a rectangular parallelepiped welding chamber that houses a welding jig table and has an opening through which objects to be welded can be put in and taken out, and performs welding while the welding chamber is in a vacuum state. The welding chamber is divided into a main body and a lid part by an inclined plane including a lower side of the front surface and a straight line parallel to the lower side at the middle part of the upper surface, and the opening is formed therein; An electron beam welding device comprising: a pair of guide members that are provided vertically in parallel along the inclined plane, and that support the lid portion so as to be laterally movable to open and close the opening portion.