Saw blade segment welding apparatus
AssigneeDengensha Manufacturing Company Limited
InventorsTsunehisa Fushimi, Tomoo Tashiro, Shigeru Suzuki, Tatsuo Kakizaki
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Abstract
A welding apparatus for welding hard segments to the circumference of a base of a saw blade. The blade base is clamped between two electrodes of a first electrode unit which can rotate. The segment is clamped by conductive fingers of a second electrode unit which is movable toward the first electrode unit. A power clamp presses together the conductive fingers together. The second electrode unit can rock to uniformly press the segment against the circumference of the blade base.
Claims11
A saw blade welding apparatus, comprising:
- a first electrode unit including two first electrodes movable toward each other and rotatable about a common axis for positioning and holding between said two first electrodes a blade base of a saw blade, said common axis extending in a direction perpendicular to planes of contact between said two first electrodes and said blade base;
- a rotary feed mechanism for rotating said two first electrodes and said blade base to a plurality of predetermined positions while said two first electrodes hold said blade base;
- a second electrode unit including a power chuck for holding a segment on an outer periphery of said blade base, said second electrode unit being movable toward said first electrode unit transversely to said common axis;
- and
- a power source connectable between said first and second electrode units for welding said held segment to said held blade base.
A method of welding a cutting edge to a circumference of a base of a saw blade for use as a cutting tool which comprises:
- positioning and holding a blade base of a saw blade between two first electrodes which are movable towards each other and rotatable about a common axis, said common axis extending in a direction perpendicular to planes of contact between said two first electrodes and said blade base;
- rotating said two first electrodes and said blade base with a rotary feed mechanism while said two first electrodes hold said blade base so as to position said blade base in a predetermined position;
- moving said second electrode unit toward said first electrode unit in a direction transverse to said common axis;
- holding a blade segment on an outer periphery of said blade base using said second electrode unit;
- welding said held segment to said held blade base by operating a power source connected between said first and second electrode units.
Dependencies are inferred from the claim text.