JPH0644670Y2 - Positioning assist device for seat welding part - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet welding position positioning assisting device,
It is an auxiliary device for manually positioning the linear welding scheduled portions of the upper and lower layer sheets on the horizontal surface plate. The heating means for welding may be any of high frequency dielectric, electric resistance (heat transfer), ultrasonic friction and the like.

[0002]

2. Description of the Related Art As shown in Japanese Utility Model Publication No. 62-45870, "Positioning device in high-frequency welding device", for positioning a rather complicated welded portion such as a vehicle seat,
A projector is used. Prior to that, the welding position was indicated by a floodlight in a dotted or linear fashion. The welding work using the above-mentioned floodlighting device is limited, and in general, when joining the upper and lower layer sheets in a straight line, the operator looks at the pressure plate and performs positioning by eye registration.

[0003]

As described above, the operator's skill is required to perform the positioning with the eye register. Even if they are skilled, it is often the case that two workers are divided into both sides of the pressure plate and position the sheet while looking at the pressure plate from the side. This device is also used for straight and simple sheet joining,
The subject was to simplify the positioning work by using an optical auxiliary device, and to make the optical device as inexpensive as the conventional floodlighting device.

[0004]

SUMMARY OF THE INVENTION A positioning assisting device for a sheet welding device according to the present invention is designed to manually work straight line welding portions of upper and lower sheets on a horizontal surface plate under a horizontally elongated flat plate pressing plate. And a pair of illuminators that are included in a vertical plane including the pressure plate, illuminate both ends of the pressure plate from outside and obliquely above, and make a shadow of the pressure plate directly below. It is characterized by

[0005]

The conventional positioning projector is expensive and cumbersome to handle because it squeezes the light into spots or lines and projects it onto the surface plate. Since this invention utilizes the shadow of the pressure plate itself, it can be illuminated from above with a normal illuminator. However, in the welding device, regardless of the heat source, the pressure plate for welding is attached to the lower surface of the press mechanism, so that the pressure plate cannot be irradiated from above. Therefore, this device illuminates both ends of the pressure plate with a pair of illuminators from an obliquely outer side, so that at least the shadows near both ends of the pressure plate are clearly visible. Since the pressure plate has a straight shape, if the shadows at both ends are clear, it does not hinder the positioning even if the shadow at the center is thin.

[0006]

FIG. 1 shows an embodiment of the present invention. 1 is a horizontally elongated flat plate-shaped pressure plate which moves up and down, and a press mechanism 2 for driving the plate is simply drawn. On the horizontal surface plate 3, portions to be welded of the upper and lower sheets S, S ', in this example, sheet edges are overlapped. A pair of illuminators 4, 4'are used as an auxiliary device for positioning work in which the portion to be welded is brought directly under the pressure plate 1.
Equipped with. Included in the vertical plane containing the pressure plate 1, the pressure plate 1
The shadow K of the pressure plate 1 is made right below by the illuminators 4 and 4'which illuminate both ends of the same from outside and obliquely above. Lighting fixtures 4 and 4'are normal light bulbs, and 4 is a fixed socket, 4 '
Is a general socket just hung with a cord. Of course, the former does not need to be shaken, but the latter can be used practically.

The shadow K formed on the surface plate 3 is aligned with the planned welding edge of the sheet S, and the shadow K formed on the edge of the sheet S is overlapped with the planned welding edge of the sheet S'by a chain line. . When a sheet positioning mark is attached on the surface plate 3,
If you put a sheet on it, you can't see it, but the shadow doesn't worry. Since FIG. 1 shows the case where the pressure plate 1 is mounted a little away from the press mechanism 2, it is relatively easy to apply the light fixtures 4 and 4 ′ only by paying attention to aligning them with the vertical plane including the pressure plate 1. A shadow K of the entire length of the pressure plate 1 can be created.
However, when the relatively thin upper edge of the pressure plate 1 is fitted on the lower surface of the cross beam of the press mechanism 1, the cross beam obstructs the illumination, which is a little troublesome. 2 and 3 show an embodiment in such a case.

The illuminators 4 and 4'of FIGS.
The small spherical light bulbs are attached to both ends of the horizontal beam, and are extremely close to the upper end surface of the pressure plate 1. Therefore, the luminaire 4,
The irradiation light of 4'is not disturbed by the press mechanism 2,
The pressure plate 1 can be illuminated and a full length shadow K can be created beneath it. The closer the illuminators 4 and 4 ′ are to the end surface of the pressure plate 1,
The shadow K of the pressure plate 1 approaches the actual length of the pressure plate 1. However, the welding edges of the upper and lower sheets S and S'to be welded are the pressure plate 1
Since the length is usually shorter, the length of the shadow K does not matter so much, and the illuminators 4 and 4 ′ may be separated from both end surfaces of the pressure plate 1 to some extent. Although only a few embodiments have been described above, it goes without saying that the present invention can be variously changed and applied according to the implementation conditions without changing the gist thereof.

[0009]

The present invention remarkably simplifies the conventional positioning of the operator by eye registration when the sheets are welded in a straight line and is simplified by a simple optical assist device. The ancillary equipment is not as expensive as conventional floodlights, only a conventional lamp is added to the conventional fusing equipment. When this invention was adopted for joining truck seats, it was now easier for one worker to perform positioning, which was conventionally done by two workers working together.

[Brief description of drawings]

FIG. 1 is an explanatory view of an embodiment of the present invention.

FIG. 2 is an elevational view of another embodiment.

FIG. 3 is an enlarged side view in which upper and lower layer sheets are added as above.

[Explanation of symbols]

 1 Pressure plate 3 Surface plate 4 Lighting equipment 4'Lighting equipment K Shadow

Claims (1)

[Scope of utility model registration request] 1. An auxiliary device for manually positioning the portions to be linearly welded of upper and lower layer sheets on a horizontal surface plate under a vertically elongated flat plate-shaped pressure plate, the pressure plate being included. A sheet welding part positioning assisting device, comprising a pair of illuminators which are included in a vertical plane and illuminate both ends of the pressure plate from outside and obliquely above and which make a shadow of the pressure plate directly below.