Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23B—TURNING; BORING
  • B23B51/00—Tools for drilling machines
  • B23B51/04—Drills for trepanning
  • B23B51/0486—Drills for trepanning with lubricating or cooling equipment
  • B23B51/0493—Drills for trepanning with lubricating or cooling equipment with exchangeable cutting inserts, e.g. able to be clamped
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
  • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
  • B23Q11/10—Arrangements for cooling or lubricating tools or work

Definitions

• the invention relates to a method and a tool body for the internal supply of cooling, lubricating or cutting fluids (hereinafter referred to as fluid) to the cutting edges or guide strips of a rotating machining tool, of the type explained in the preamble of patent claim 1.
• fluid cooling, lubricating or cutting fluids
• rotating machining tools are known, the tool body of which has a centrally arranged liquid space from which radial channels lead to outlet openings in the immediate vicinity of the cutting edges.
• the liquid chamber is acted upon by a hollow tool spindle and a corresponding feed channel in the tool body, as well as a corresponding rotary distributor with sensitive sealing elements and shut-off valves in the event of a tool change.
• the object of the invention is to improve a method and a tool body for supplying the liquid internally to the cutting edges of a rotating machining tool of the type explained in the preamble of claim 1 in such a way that the loading of the liquid space is easier and more reliable and without the expense of special sealing arrangements, Rotations ⁇ distributors and shut-off valves is achieved.
• this object is achieved by providing the method steps and features indicated in the characterizing part of claim 1 in a method and a tool body according to the preamble of claim 1.
• the tool body has an inner liquid space of greater volume, which has a funnel-shaped inlet ⁇ ff- - 3 -
• a reliable distribution can also be provided for a plurality of radial channels in the case of a liquid jet introduced with the corresponding pressure.
• the device generating the liquid jet is permanently installed, follows the movement of the tool spindle in a controlled manner, or is designed telescopically, a safe liquid supply can be provided without excessive spray losses, which also reduces the environmental impact of liquid vapors becomes.
• the liquid jet is only switched on by a corresponding valve arrangement when the tool body is actually in its machining position.
• the shape of the inner liquid space can be provided with corresponding guide surfaces for the impinging liquid jet in order to specifically influence its distribution.
• the figure a schematic device arrangement for performing the method according to the invention with the tool body according to the invention.
• a tool spindle 1 of a machine tool is provided with a schematically indicated tool holder 2, in which a tool body 3 is received in a known manner.
• the tool body 3 is provided with an inner liquid space 4, from which radial channels 5, 6 and 7, for example to tool guide strips 8 and radial channels 9 and 10 to outlet openings in the immediate vicinity of the cutting edges or cutting elements 11 and 12 for machining a workpiece 13 lead.
• the tool body 3 is provided with an axial inlet opening 14 for a liquid jet 15, which is directed onto the tool body 3 from the side opposite the tool spindle 1.
• the liquid jet 15 is generated by a jet pipe 16, which is supplied with liquid under pressure in a conventional manner via a liquid device 17.
• the inner liquid space 4 in the tool body 3 is preferably closed off by a lower cover plate 18 with a funnel-shaped opening 19, so that the liquid jet 15 enables a corresponding build-up of pressure in the liquid space 4, which ensures a uniform supply of the various radial channels 5, 6, 7 and 9, 10.
• the liquid jet 15 generated by the liquid device 17 via the jet pipe 16 can be provided by a stationary device or else the jet pipe 16 enables a telescopic shortening or the liquid device 17 takes part in a correspondingly controlled movement, indicated by the double arrow 21.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Auxiliary Devices For Machine Tools (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6349832

Family Applications (1)

Country Status (3)

Cited By (4)

Families Citing this family (1)

Citations (6)

Family Cites Families (1)

• 1988
  • 1988-03-16 DE DE3808707A patent/DE3808707C1/de not_active Expired
• 1989
  • 1989-03-15 WO PCT/EP1989/000275 patent/WO1989008534A1/de not_active Ceased
  • 1989-03-15 DE DE89903129T patent/DE58906594D1/de not_active Expired - Fee Related
  • 1989-03-15 EP EP89903129A patent/EP0404793B1/de not_active Expired - Lifetime

Patent Citations (6)

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