Classifications

• • 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
  • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
  • B23Q1/25—Movable or adjustable work or tool supports
  • B23Q1/64—Movable or adjustable work or tool supports characterised by the purpose of the movement
  • B23Q1/68—Movable or adjustable work or tool supports characterised by the purpose of the movement for withdrawing tool or work during reverse movement
• • 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
  • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
  • B23Q1/25—Movable or adjustable work or tool supports
  • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
  • B23Q1/262—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members with means to adjust the distance between the relatively slidable members
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T408/00—Cutting by use of rotating axially moving tool
  • Y10T408/47—Cutting by use of rotating axially moving tool with work-infeed means
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T408/00—Cutting by use of rotating axially moving tool
  • Y10T408/96—Miscellaneous
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T409/00—Gear cutting, milling, or planing
  • Y10T409/30—Milling
  • Y10T409/304536—Milling including means to infeed work to cutter
  • Y10T409/305544—Milling including means to infeed work to cutter with work holder
  • Y10T409/305656—Milling including means to infeed work to cutter with work holder including means to support work for rotation during operation
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T409/00—Gear cutting, milling, or planing
  • Y10T409/30—Milling
  • Y10T409/309352—Cutter spindle or spindle support

Definitions

• the invention due to the collaboration of M. MARTY GABRIEL, relates to the problem of tool removal on machine tools where it is desired, at the end of machining, to avoid scratching the surface machined during the race relative tool-piece clearance.
• the present invention relates to an advantageous solution taking advantage of a common arrangement of machine, to do this.
• the tool removal device in a machine comprising a movable assembly for supporting the tool or the part having a backlash guide by lateral stress, is characterized in that it includes means for laterally moving said movable assembly away from its play take-up position to separate the tool from the workpiece after machining.
• Such a solution is particularly advantageous on machines with tool-holder spindle (s) for internal machining, such as boring machines, in which the spindle is manually indexable or can be subjected to an angular stop indexing device in end of machining, since it is sufficient, then, to provide an indexing tool d t (s) in a plane approximately parallel to that of compensating said clearance and in the same direction as the latter prior to the implementation of means above, 'used to separate the tool from the workpiece.
• the means intended to separate the tool or tools from the workpiece can simply be constituted by pneumatic pushers opposite to the previous ones and actuable in their place.
• the machine tool shown comprises a base 1 provided with horizontal slides 2 on which is mounted, displaceable, a table 3 which is driven by means of a screw-nut mechanism 4, the driving screw of which pivots in the base, while the nut is secured to the table.
• a flank falling from the table 3 is, moreover, guided laterally on the flank 5 of one of the runners 2 against which the table flank is kept pressed under a certain force, by a play take-up device, here constituted by at least two pneumatic pushers 6 disposed spacedly on the base 1, facing a lateral slide 7 attached to the table 3 and with which they co-operate frictionally.
• Each pusher 6, like that shown in section in the drawing, comprises a connection end piece 6a to a compressed air pipe not shown, formed in the adjacent part of the base and, around this end piece, a lip seal 6b on which can slide a pusher head 6c tightly.
• the machine tool considered is, here, a boring machine of which only the rotating tool-holder spindle is shown at 8 with its boring tool at 9.
• the motorized spindle-holder may include an angular indexing device of the spindle which can be of any known type, is fixed on the table 3 while the workpiece 10 is fixed for machining on a plate 11 secured to the base 1, this machining consisting, here, in an operation d bore of a hole 12 formed on the part 10.
• each pneumatic pusher 6 is, in its position for taking up play between the table flank and the flank 5, separated from the base 1 by a slight clearance 13 which may be of the order of one to a few tenths of a millimeter.
• pneumatic pushers 14 which can be supplied with compressed air by a pipe, not shown, formed in the adjacent part of the base 1, these pushers cooperating with a lateral slide 15 attached to the table.
• machining end T to obtain a withdrawal of the tool 9 with respect to the part 10 prior to extraction of the tool spindle 8 out of the bored hole 12, it is sufficient to index the tool 9 in the angular position shown in the drawing, close to the horizontal, and oriented in the direction of the lateral action to take up the play, then to supply compressed air to the pneumatic pushers 14 while those to take up the play 6 are exhausted, so that the table 3, spindle holder and tool holder spindle 8, 9,: is then offset from the play 13 opposite to the position of the tool 9, and that this the latter is thus offset from the reamed hole 12 from which it can be removed with the spindle without risk of scratching the bore.
• the present invention is applicable with any other lateral clearance take-up guide device of a mobile tool or workpiece support assembly in a machine tool, whatever its structure, mechanical to spring or pressurized fluid.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Machine Tool Units (AREA)
• Automatic Tool Replacement In Machine Tools (AREA)
• Auxiliary Devices For Machine Tools (AREA)
• Drilling And Boring (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=9192608

Family Applications (1)

Country Status (7)

Cited By (1)

Families Citing this family (4)

Citations (7)

Family Cites Families (5)

• 1977
  • 1977-06-27 FR FR7719614A patent/FR2395811A1/fr active Granted
• 1978
  • 1978-05-01 JP JP5076978A patent/JPS5411580A/ja active Pending
  • 1978-05-03 ES ES469389A patent/ES469389A1/es not_active Expired
  • 1978-06-01 DE DE7878400002T patent/DE2860250D1/de not_active Expired
  • 1978-06-01 EP EP78400002A patent/EP0000294B1/de not_active Expired
  • 1978-06-15 IT IT68396/78A patent/IT1108557B/it active
• 1983
  • 1983-03-14 US US06/474,732 patent/US4737054A/en not_active Expired - Fee Related

Patent Citations (7)

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