Pin structure

• Main Author: ROLANDI ANDREA
• Format: Patent
• Language: Chinese; English
• Published: 28.10.2022
• Subjects: COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; TRANSPORTING

A pin structure for locking a workpiece adapted to be machined on a machine tool, the pin structure being of the type adapted to be fixed to the workpiece and inserted into a support extending about an axis and provided with an axial cavity adapted to receive the pin structure, the support being provided with retaining means adapted to hold the pin structure in the axial cavity. And a retaining means for axially retaining the pin structure by engaging a circumferential groove of the pin structure, the pin structure comprising: a centering ring received in the axial cavity and adapted to be interposed between the workpiece and a body of the pin structure provided with the circumferential groove, the centering ring can slide relative to the main body on a plane vertical to the axis of the pin structure; a locking ring fitted with play on the centering ring and having a frustoconical surface adapted to engage a corresponding frustoconical inlet of the axial cavity when the retaining means are engaged in the circ