JPH0710871Y2 - Positioning device for fusion welding - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a positioning device suitable for use in joining frames of various electric equipment casings by fusion welding.

[0002]

2. Description of the Related Art In manufacturing a casing for a relatively large electric device, the casing structural members are integrally joined by various weldings. Melt welding is generally used. Unlike the spot welding or the like, this fusion welding melts the joining portion into a strip shape, and therefore warps or the dimensions of the housing are deformed unless some holding jig is used. Therefore, generally, a structural jig is positioned and welded by fitting a welding jig made of a single metal plate that defines the finished size of the frame into a frame to be melt-welded so as not to fall off. .

[0003]

However, in a welding jig made of a single metal plate, there is a problem that the welding jig is tightened due to shrinkage of the frame body after welding, which makes it difficult to remove the welding jig. Further, if the force is taken out, the welding jig will be distorted, and the dimensional accuracy of the jig cannot be maintained.

Therefore, the present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to make it possible to easily take out from a frame to be welded after welding and to stably maintain dimensional accuracy. Another object of the present invention is to provide a positioning device for fusion welding.

[0005]

In order to achieve the above object, the present invention provides a substrate to be inserted and arranged in a frame to be welded, one end of which is disposed on each of the substrates and one end of which protrudes from a peripheral portion of the substrate. A plurality of positioning plates that come into contact with the inner surface of the frame to be welded, a guide block that holds the positioning plates together with the substrate so that they can move back and forth, and a recessed portion provided in the guide block so as to be vertically movable. And an elevating block having an inclined surface, one end of which penetrates the substrate and contacts the other end of the positioning plate, and a means for elevating the elevating block.

[0006]

In the present invention, the base plate and the guide block movably hold the positioning plate. The positioning plate is pressed and moved by the inclined surface of the elevating block and comes into contact with the inner surface of the frame to be welded, thereby setting the finished size of the frame to be welded.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the embodiments shown in the drawings. FIG. 1 is a plan view showing an embodiment of a positioning apparatus for fusion welding according to the present invention, and FIG. 2 is a II-II of FIG.
It is a line sectional view. In these figures, reference numeral 1 is a frame body (frame to be welded) to be welded from now, and 2 is a positioning device for fusion welding arranged in the frame body 1. In the present embodiment, the frame 1 is composed of four metal members 1A to 1A that form a casing of an electric device or the like.
It is framed in a rectangle by D.

The fusion welding positioning device 2 includes a substrate 3 made of aluminum or the like which is inserted and arranged in the frame 1.
One end of each of the metal members 1A to 1A protrudes from the peripheral portion of the substrate 3 at the peripheral portion of the upper surface of the substrate 3.
A plurality of, for example, four metal positioning plates 4 to 7 that come into contact with the inner surface of D are provided so as to be movable back and forth.
In addition, on the upper surface of the substrate 3, the positioning plates 4 to 7 are provided.
A pair of left and right metal guide blocks 8 and 9 for movably holding the substrate 3 are provided. The center portions of the guide blocks 8 and 9 are fixed to the substrate 3 by a set screw (not shown) or the like, and the peripheral portions of the lower surface (provided that the opposing side surfaces 8a and 9a of the blocks 8 and 9 are adjacent to the plate 4). , 6
U-shaped plate recesses 10 and 11 for accommodating a part of the positioning plates 4 to 7 are formed on the bottom surface (excluding the lower surface). In this case, the inner end portion of the guide plate 7 and the left end portions of the guide plates 4 and 6 are respectively inserted into the plate recess portion 10 of the left guide block 8 in the drawing, and the plate recess portion 11 of the right guide block 9 is inserted. The inner end portion of the guide plate 5 and the right end portions of the guide plates 4 and 6 are inserted in each of them. Further, on the lower surface of the guide blocks 8 and 9, three block recesses 12 to 14 and 15 to 17 which communicate with the plate recesses 10 and 11, respectively, are provided, and these block recesses 12 to 17 are provided. The positioning plate 4 to
7, a part of the insertion-side end portion inserted into the plate recesses 10 and 11 is inserted, and lifting blocks 20 to 25 for moving and adjusting the plates 4 to 7 are respectively housed so as to be vertically movable. Has been done. Block recess 12 ~
Reference numeral 17 denotes a rectangular concave portion, and the elevating blocks 20 to 25 are trapezoidal, and the side surfaces facing and abutting the partial side edges of the positioning plates 4 to 7 form inclined surfaces 26, respectively. The board 3 has a rectangular hole 27 into which the lower end of each of the elevating blocks 20 to 25 is inserted.
To 17 are formed so as to penetrate. A bolt 30 is provided so as to penetrate from the lower side of the substrate 3 to each of the elevating blocks 20 to 25. The bolt 30 projects above the guide blocks 8 and 9 and is screwed with a wing nut 32. A means for raising and lowering the elevating blocks 20 to 25 is formed.

35 to 42 are inserted from below the substrate 3 into the through holes 43 and 44 formed in the substrate 3 and the positioning plates 4 to 7, and the concave portions 10 and 1 of the guide blocks 8 and 9 are inserted.
1 is a positioning pin screwed into the bottom surface of the frame 1
The frame size (finished size) of the metal members 1A to 1D constituting the above is the lifting block 2 of the positioning pins 35 to 42.
Insertion holes 4 of positioning plates 4 to 7 on the side surface on the side of 0 to 25
It is specified that the outer edges of the positioning plates 4 to 7 have a required size in a state where they are in contact with each other. For this reason,
By elevating the elevating blocks 20 to 25 and pushing the position determining plates 4 to 7 by their inclined surfaces 26 to move them forward to press the insertion holes 44 of the position determining plates 4 to 7 against the positioning pins 35 to 42, the required dimensions can be obtained. Easy to get. In addition, 45 to 48 are clamps for fixing the metal members 1A to 1D to the substrate 3.

In such a structure, the metal members 1A ...
When 1D is combined in a frame shape to form the frame body 1 and the joint portion thereof is melt-welded, the positioning device 2 is inserted and arranged in the frame body 1 and the elevating means 33 causes the elevating blocks 20 to 25.
Is moved up and down, and the sloping surface 26 moves the positioning plates 4 to 7
Is pushed forward to insert the insertion hole 44 into the positioning pins 35 to 42.
Press. Then, the outer edges of the positioning plates 4 to 7 come into contact with the inner side surfaces of the metal members 1A to 1D, and the frame 1
Set the finished dimensions of. After that, the clamp 45 ~
The metal members 1A to 1D are fixed to the substrate 3 by means of 48, the joint portions of the metal members 1A to 1D are welded, and after the welding is completed, the lifting means 33 is loosened to lower the lifting blocks 20 to 25, and the positioning plates 4 to 7 are positioned. The welding work is completed by making the movable part retractable and removing the positioning device 2 from the frame 1.

[0011]

As described above, according to the positioning apparatus for fusion welding according to the present invention, even if the positioning plate is tightened due to shrinkage during welding, the positioning block is lowered by lowering the lifting block. Since it can be separated from the frame, the positioning device can be easily and easily removed from the frame to be welded, and since it is not necessary to forcibly remove it, the positioning plate will not be distorted and dimensional accuracy will be stable. It can be maintained and the durability of the device can be improved.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a positioning device for fusion welding according to the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Positioning device for fusion welding 3 Substrate 4-7 Metal member 8, 9 Guide block 10, 11 Plate recess 12-17 Block recess 20-25 Lifting block 26 Inclined surface 33 Lifting means

Claims (1)

[Scope of utility model registration request] 1. A substrate to be inserted and arranged in a frame to be welded, and a plurality of positions which are respectively disposed on the substrate and one end of which protrudes from a peripheral portion of the substrate and abuts on an inner surface of the frame to be welded. A take-out plate, a guide block that holds the position-taking plate together with the substrate so as to move back and forth, and an up-and-down housed in a recess provided in the guide block so that one end thereof penetrates the substrate and A positioning device for fusion welding, comprising: an elevating block having an inclined surface that abuts on the other end of the plate; and means for elevating the elevating block.