Basic tool holder for attachment in an accommodating recess, particularly a turret head

• US 5,031,492 A
• Filed: 02/26/1990
• Issued: 07/16/1991
• Est. Priority Date: 04/06/1989
• Status: Expired due to Fees

• Current Assignee: Zinner GmbH Prazisionswerkzeug
• Original Assignee: Zinner GmbH Prazisionswerkzeug
• Inventors: Zinner, Karl
• Primary Examiner(s): Schmidt, Frederick R.
• Assistant Examiner(s): Cruz, Lawrence
• Application Number:
  US07/485,200
• Time in Patent Office: 505 Days
• Field of Search: 82/158, 407/107, 407/108, 407/109, 407/34, 407/41
• US Class Current: 82/158
• CPC Class Codes: B23B 2205/02 Fixation using an elastically deformable clamping member
• CPC Class Codes: B23B 29/043 with cutting-off, grooving or profile cutting tools, i.e. blade- or disc-like main cutting parts B23B29/14 takes precedence
• CPC Class Codes: B23B 29/242 Turrets, without description of the angular positioning device turret lathes for turning individually-chucked workpieces B23B3/16; turrets with manually operated angular positioning devices B23B29/282; turrets with power operated angular positioning devices B23B29/323
• CPC Class Codes: Y10T 407/1922 Wedge clamp element
• CPC Class Codes: Y10T 407/2282 including tool holding clamp and clamp actuator
• CPC Class Codes: Y10T 82/2585 Tool rest

Abstract

A basic tool holder for attachment in an accommodating recess of a tool support, particularly a turret head, with a base part, to which can be attached a work-holding device by one or several clamping means, between which the tool is clamped. A component of the clamping force, directed radially towards the tool support, is produced by at least one abutment face between the base part and the work-holding device forming a wedge-shaped incline for the clamping means.

Claims

1. The combination comprising a rotatable turret head and a basic holder which holds a tool holder and which is mounted on a new rotatable turret head, said turret head having a recess for receiving said basic holder, said basic holder comprising a base part and a work holding device along with clamping means mounting said work holding device on said base part, said base part having a flat upper surface and a flat mounting wall perpendicular to said flat upper surface, said flat mounting wall having a lower projection, said tool holder having one flat side disposed against said flat mounting wall of said basic holder and a lower edge disposed against said lower projection, said flat upper surface having a V-shaped groove which divides said flat upper surface into a flat gripper surface and a flat upper surface section which is co-planar with said flat gripper surface, said work holding device having a projection disposed within said V-shaped groove, said V-shaped groove having a first abutment surface engaged by a second abutment surface on said projection such that when said clamping means clamps said work holding device onto said base part, said first and second abutment surfaces are engaged to produce a component clamping force extending in a direction generally perpendicular to said flat mounting wall, said work holding device having an upper projection with an inclined surface which is disposed at an acute angle relative to said one flat side of said tool holder, said tool holder having an upper edge engageable by said inclined surface such that said upper projection with its inclined surface clamps said tool holder against said mounting wall and against said lower projection on said mounting wall when said clamping means clamps said holding device onto said base part, said recess in said turret head having top and bottom walls along with an inner wall, a clamping screw in said top wall, said clamping screw having an actuating head extending into said recess, said basic holder being disposed in said recess such that said flat gripper surface is disposed between said inner wall of said recess and said V-shaped groove, said actuating head of said clamping screw engaging said flat gripper surface to thereby clamp said basic holder in said recess, said actuating head being readily accessible within said recess when said work holding device, said clamping means, and said tool holder have been removed form said base part.

2. The combination according to claim 1, wherein said lower projection has an engageable surface disposed at an acute angle relative to said flat mounting wall, said lower edge of said tool holder abutting said engageable surface.

3. The combination according to claim 1, wherein said flat upper surface section intersects said flat mounting wall along a line of undersection which defines a front edge of said flat upper surface section, said flat upper surface section being a planar surface extending between said front edge and said V-shaped groove, thereby providing a space above said flat upper surface section providing ready access to said actuating head of said clamping screw.

4. The combination according to claim 1, wherein said actuating head is a bolt head.