Machine tool and tool holder for said machine tool
AssigneeChiron-Werke GmbH & Co. KG
InventorsAnton Schweizer, Dirk Prust
Life of this patent
Estimating the term…
Abstract
A machine tool has a spindle which has a tool receptacle for an interchangeable tool holder. The tool holder is chucked into the tool receptacle during operation of the machine tool. A first passage having an outlet opening is arranged in the interior of the spindle. The outlet opening opens out inside the tool receptacle. The tool holder has a coolant tube which engages in the outlet opening of the first passage. According to the invention, the first passage comprises a continuous inner tube, the first end of which is connected to a connection for a coolant source and the second end of which is designed for connection to the coolant tube.
Claims16
A machine tool, having a spindle with a tool receptacle for receiving a tool holder having a coolant tube for receiving a cooling lubricant, said tool holder being chucked into the receptacle during operation of said machine tool,
- said spindle having an interior, a first passage being arranged in said interior, said first passage having an outlet opening that opens out inside said tool receptacle, said outlet opening receiving said coolant tube of said tool holder when said tool holder is chucked into said tool receptacle,
- said first passage including a continuous inner tube having a first and a second end, said first end being connected to a connection for a coolant source and said second end being arranged for being connected to the coolant tube of the tool holder when the tool holder is chucked into the tool receptacle, wherein an annular seal is provided for connecting said inner tube to said coolant tube when said tool holder is chucked into said tool receptacle, and wherein said coolant tube has a tubular inner insert for fixing said annular seal at said coolant tube.
A tool holder for being clamped into a tool receptacle of a machine tool, said tool holder having an external taper for being chucked into said tool receptacle, and having a coolant tube for receiving a cooling lubricant, said coolant tube being designated at its upper free end for being connected with an inner tube of said machine tool opening out in said tool receptacle, wherein said coolant tube has an inlet opening into which said inner tube of said machine tool engages when said tool holder is chucked into said tool receptacle, wherein said coolant tube has an annular seal in the region of its inlet opening, and wherein said coolant tube has a tubular inner insert fixing said annular seal within said coolant tube.
A machine tool, having a spindle with a tool receptacle for receiving a tool holder having a coolant tube for receiving a cooling lubricant when said tool holder is chucked into the receptacle during operation of said machine tool,
- said spindle having an interior, a first passage being arranged in said interior, said first passage having an outlet opening that opens out inside said tool receptacle, said outlet opening receiving said coolant tube of said tool holder when said tool holder is chucked into said tool receptacle,
- said first passage including a continuous inner tube having a first and a second end, said first end being connected to a connection for a coolant source and said second end being arranged for being connected to the coolant tube of the tool holder when the tool holder is chucked into the tool receptacle, wherein said inner tube has an outside diameter which at least in sections is smaller than a clear inside diameter of said first passage, such that a clear intermediate space is provided around said inner tube, and wherein at least one side passage branches off in the region of said clear intermediate space, said at least one side passage having an outlet opening which opens out at a section arranged at an end face of said spindle.
Dependencies are inferred from the claim text.