Hand tool
AssigneeGL GmbH Metall- und Werkstattechnik
InventorAdolf Henzler
Life of this patent
Estimating the term…
Abstract
The invention relates to a milling tool (1) for opening laser welded connections between thin metal sheets. The milling tool includes a rotary drive (2), which is used to operate a milling cutter (9). The head of the milling cutter (9) protrudes through an opening (28) in a base plate (4) that forms an even contact surface (25) for defining the penetration depth of the milling cutter head in the material. In addition, the base plate (4) is provided with a lateral contact surface or contact edge (27) that introduces the reaction force, which originates from the cutting force, directly and rapidly into a contact surface of the bodywork section that is to be treated.
Claims32
A hand-operated tool for opening weld seams on thin sheet metal parts comprising:
- a rotary drive having a chuck for holding a milling cutter that is rotatable about a rotational axis by the rotary drive, the milling cutter producing a cutting force;
- and
- a footplate having a footplate contact surface and a guide edge, the footplate contact surface being inclined relative to the rotational axis and the guide edge being offset relative to the rotational axis in the footplate contact surface;
- wherein the guide edge is a curved edge and confines the footplate laterally, the guide edge extending from the footplate contact surface to a side of the footplate adjacent the rotary drive and defining an edge configured for engaging a surface of a metal part in which a weld seam is being opened and thereby introducing a reaction force generated by the cutting force into the metal part surface.
A hand-operated tool for opening weld seams on thin sheet metal parts comprising:
- a rotary drive having a chuck for holding a milling cutter that is rotatable about a rotational axis by the rotary drive, the milling cutter producing a cutting force;
- and
- a footplate having a footplate contact surface and a guide edge, the footplate contact surface being inclined relative to the rotational axis and the guide edge being offset relative to the rotational axis in the footplate contact surface;
- wherein the guide edge is a curved edge, the guide edge projecting from the contact surface in a direction that lies on the a side opposite the rotary drive;
- wherein the guide edge begins close to the milling cutter and the distance between the guide edge and a longitudinal axis of the footplate increases along with the distance from the milling cutter, the guide edge defining an edge configured for engaging a surface of a metal part in which a weld seam is being opened and thereby introducing a reaction force generated by the cutting force into the metal part surface.
Dependencies are inferred from the claim text.