Joining tool for joining a deformable element to a workpiece
AssigneeDubuis et Cie S.A.S.
InventorGuillaume Gendre
Life of this patent
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Abstract
A power tool for joining a deformable element having a threaded shaft to a workpiece. The joining tool comprising a threaded dowel adapted to receive the threaded shaft and rotatably within the housing. A nose is arranged around the threaded dowel, and the dowel is slidably movable relative to the nose. A motor drives a drive train to rotate the threaded dowel. A hydraulic system drives another drive train to move the threaded shaft and compress the deformable element. The joining tool includes a sliding unit. The nose is attachable to the sliding unit, and in an attached position the nose is slidably connected to the housing so that the hydraulic system may move the nose axially to compress the deformable element.
Claims15
A joining tool for joining to a workpiece a deformable element having a threaded shaft and a predetermined portion for deformation, the joining tool comprising:
- a housing;
- an electrical motor including a motor shaft connected to a rod;
- a threaded dowel adapted to receive the threaded shaft of the deformable element, the threaded dowel rotatable relative to the housing around a longitudinal axis, and the threaded dowel is connected to the rod;
- a nose arranged around the threaded dowel, and the threaded dowel is slidably movable relative to the nose;
- a first drive train drivable by the motor to cause rotation of the threaded dowel in a screwing direction or an unscrewing direction;
- a second drive train comprising a hydraulic system and operable for deforming the deformable element;
- and
- a sliding unit, and the nose is removably attachable to the sliding unit, and, in an attached position, the nose is slidably connected to the housing, and the hydraulic system is operable to impress an axial translation on the nose for deforming the deformable element.
A method for joining a deformable element to a workpiece with a joining tool, the method comprising the steps of:
- providing the deformable element including a threaded shaft and a predetermined portion for deformation;
- providing the joining tool comprising:
- a housing;
- an electrical motor including a motor shaft connected to a rod;
- a threaded dowel adapted to receive the threaded shaft and rotatably relative to the housing around a longitudinal axis, and the threaded dowel is connected to the rod;
- a nose arranged around the threaded dowel, and the threaded dowel is slidably movable relative to the nose;
- a first mechanical drive train drivable by the motor to cause rotation of the threaded dowel in a screwing direction or an unscrewing direction;
- a second drive train operable by a hydraulic system for deforming the deformable element;
- a sliding unit, and the nose is removably attachable to the sliding unit, and, in an attached position, the nose is slidably connected to the housing such that the hydraulic system may impress an axial translation on the nose for deforming the deformable element;
- and
- selecting a threaded dowel and a nose compatible with the deformable element to be set;
- screwing the threaded dowel to the rod;
- plugging the nose into the sliding unit;
- aligning the threaded shaft of the deformable element with the longitudinal axis of the threaded dowel;
- pushing the threaded shaft of the deformable element against the threaded dowel in order to automatically start the screwing of the deformable element into the threaded dowel;
- providing the workpiece with a hole and arranging the deformable element within the hole in the workpiece;
- setting the deformable element within the hole in the workpiece by pressing a trigger arranged on the housing of the tool to activate the hydraulic system to impress an axial translation on the sliding unit and on the nose for deforming the deformable element, and;
- detecting the end of the setting step;
- and
- unscrewing the threaded shaft of the deformable element.
Dependencies are inferred from the claim text.