JP3132416U - An electrode shaping machine that shapes rotating electrodes. - Google Patents

Abstract

In seam welding, if the outer peripheral surface of a rotating electrode is ground, i.e., scraped, with a cutting tool, the rotating electrode is shaved and wear becomes severe. As the diameter of the rotating electrode changes, the welding spade changes, that is, slows, and the welding quality deteriorates. An object of the present invention is to provide an electrode shaping machine that corrects and shapes the shape of a rotating electrode without polishing the rotating electrode.
An electrode shaping machine having a shaping roller is provided at a predetermined location of a seam welding machine so that the shaping roller is attached to a predetermined end of the outer periphery of the rotating electrode.
[Selection] Figure 2

Description

  The present invention relates to an electrode shaping machine for shaping a rotating electrode in a seam welding machine.

  In conventional seam welding, a workpiece is inserted between a pair of upper and lower rotating electrodes, and welding is performed by passing a welding current while rotating both rotating electrodes. As the number of welds of the welded object increases, the outer peripheral surfaces of both rotating electrodes are worn and unevenness (meklet) occurs, the welding current becomes unstable, and adversely affects the welding result of the object to be welded. For this reason, it is necessary to periodically grind the outer peripheral surfaces of both rotating electrodes. For this purpose, a cutting tool for polishing the outer peripheral surface of the rotating electrode is used (for example, see Patent Document 1).

JP-A-11-309585 ([0002] to [0006])

  When the outer peripheral surface of the rotating electrode is polished, i.e., shaved, with a cutting tool as in the prior art, the rotating electrode is shaved and wear is increased. As the diameter of the rotating electrode changes, the welding spade changes, that is, slows, and the welding quality deteriorates.

  Therefore, an object of the present invention is to provide an electrode shaping machine that corrects and shapes the shape of the rotating electrode without polishing the rotating electrode.

  In order to achieve the above object, the electrode shaping machine of the present invention is a seam welding machine, wherein the electrode shaping machine having the shaping roller is a seam welding machine so that the shaping roller is attached to a predetermined end of the outer periphery of the rotating electrode. Are provided at predetermined locations.

  The electrode shaping machine includes a plate attached to a housing of a seam welding machine, a guide rail provided on the upper part of the plate, a running part provided on the upper part of the guide rail, a roller holding part and a covered part. It is preferable that the roller holding portion is provided with a stop roller and a shaping roller. The connecting portion connects the pressure portion and an air cylinder provided on a predetermined side of the pressure-receiving portion.

  The shaping roller is preferably a taper roller.

  According to the present invention, since the rotating electrode can be corrected and shaped without shaving the rotating electrode, the welding speed hardly changes and good welding can be performed.

The best mode of the present invention will be described with reference to the drawings.
FIG. 1 is a view showing a state where an electrode shaping machine is mounted on the housings 16 and 16 ′ of the seam welding machine 8.

  Rotating electrodes 1 and 1 ′ are provided on the housings 16 and 16 ′ of the seam welder 8. The electrode shaper 3 is attached to the lower part of the upper housing 16, and the electrode shaper 3 'is also attached to the upper part of the lower housing 16'.

  FIG. 2 is a view showing a state where the shaping roller 2 is mounted so as to sandwich the rotating electrode 1. The shaping roller 2 is mounted so as to sandwich the outer peripheral end portion of the rotating electrode 1. The electrode shaping machine 3 having the shaping roller 2 is provided with a guide rail 5 provided on the upper part of the plate 4 for mounting on the housing 16. A traveling portion 8 provided on the upper portion of the guide rail 5, a coupling portion 10 that couples the roller holding portion 7 and the pressure-receiving portion 9, and a side portion of the pressure-receiving portion 9 (the opposite side of the rotating electrode 1). And an air cylinder 6 provided in the housing.

  FIG. 3 is a diagram showing the internal structure of the electrode shaping machine 3 of FIG. 2 and the movement of the roller holding portion 7. As shown in FIG. 3, the plate 4 and the guide rail 5 are coupled by screws 12 or the like. The holding part 7 and the coupling part 10, and the pressed part 9 and the coupling part 10 are also coupled by a screw 13 or the like.

  The roller holding unit 7 includes a shaping roller 2 mounted on the outer peripheral end of the rotating electrode 1 and a stop roller 11 in contact with the rotating electrode. As shown in FIG. 3, the stop roller 11 is located at a position 14 away from the rotating electrode 1 when the rotating electrode 1 is not driven (rotated), and is attached to the outer peripheral end of the rotating electrode 1 when the rotating electrode 1 is driven. It is in the proper position 15. That is, when the rotating electrode 1 is driven, the air cylinder 6 is activated, pressure is applied to the pressure-receiving portion 9, and the traveling portion 8 moves toward the rotating electrode 1, whereby the coupling portion 10 and the roller holding portion 7 are also moved. Moving toward the rotating electrode, the shaping roller 2 is mounted on the rotating electrode 1. In this case, the position of the shaping roller 2 can be placed (attached) at an appropriate position 15 by the stop roller 11 coming into contact with the rotating electrode 1 so that the shaping roller 2 does not go to the position 17 in the center direction of the rotating electrode 1. I can do it.

  The structure of the electrode shaping machine 3 ′ mounted on the upper part of the lower housing 16 ′ and the relationship with the rotating electrode 1 ′ are the same as the structure of the electrode shaping machine 3 and the relationship with the rotating electrode 1.

FIG. 4 is a diagram showing a state of correction and shaping by the shaping roller 2 when unevenness (meklet) occurs on the rotating electrode 1.
As the number of times the workpiece is welded increases, the rotating electrode is creased. This meshing is corrected and shaped by the shaping roller 2. However, since the shaping roller 2 is tapered, it is easy to process (correct, shape) using a change in speed.

It is a figure which shows the state with which the electrode shaping machine was mounted | worn with the housing of the seam welding machine. It is a figure which shows the state with which the shaping roller is mounted | worn so that a rotation electrode may be pinched | interposed. It is a figure which shows the internal structure of the electrode shaping machine of FIG. 2, and a movement of a roller holding | maintenance part. It is a figure which shows the state of correction | amendment by the shaping roller, and shaping when a turning electrode arises in a rotating electrode.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,1 'Rotating electrode 2 Shaping roller 3, 3' Electrode shaping machine 4 Plate 5 Guide rail 6 Air cylinder 7 Roller holding | maintenance part 8 Traveling part 9 Pressurized part 10 Coupling part 11 Stop roller 12, 13 Screw 14 Position 15 away Proper position 16, 16 'housing 17 Center position

Claims (3)

In seam welders,
An electrode for shaping a rotating electrode, wherein an electrode shaping machine having the shaping roller is provided at a predetermined location of a seam welder so that the shaping roller is mounted on a predetermined end of the outer periphery of the rotating electrode. Shaping machine.   The electrode shaping machine includes a plate attached to a housing of a seam welding machine, a guide rail provided on an upper portion of the plate, a traveling portion provided on the upper portion of the guide rail, a roller holding portion, and a pressure-receiving portion. The roller holding portion is provided with a stop roller and a shaping roller, and includes a coupling portion for coupling the portion and an air cylinder provided on a predetermined side of the pressure-receiving portion. An electrode shaping machine for shaping the rotating electrode according to 1.   3. The electrode shaping machine for shaping a rotating electrode according to claim 1, wherein the shaping roller is a tapered roller.

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