US 7,396,196 B2Granted

Cutting machining tool

AssigneeHartmetall-Werkzeug Fabrik Paul Horn GmbH.

InventorMatthias Oettle

Life of this patent

Estimating the term…

Loading patent…

Abstract

A cutting machining tool, especially of a boring bar type, has a holding device (10), one end of which is provided with a fixing shaft while its other end is provided with a seat (12) for a removable cutting member (16). The cutting member encompasses a support part (18) which engages at least partly into the seat (12) in the fixed state and a machining part (20). The support part (18) can be fixed in a clamping manner in the seat (12) by a fastening part (22). The seat (12) is provided with a rest area (28). The cutting member can be securely fixed in the seat across a larger fixing range by a support part due to the fact that the seat (12) includes a delivery area (30) in addition to the rest area (28). The two areas (28, 30) are movable towards or away from each other so as to fasten or remove the cutting member (16) by the fastening part (22). Secure fixing and support is achieved by three planar areas that are located on the outer circumference of the support part.

Claims18

Dependent claims

A tool for cutting machinery, comprising:

a replaceable cutting element having a supporting component with first converging contact surfaces and with a second contact surface on said supporting component, and having a machining component;
a holder having a first end with a fastening shank and a second end with a seat receiving said supporting component;
a fastening component for fastening said supporting component in said seat, said fastening component including a support area and an adjustment area relatively movable toward and away from one another for fastening or replacing said cutting element;
slots in said seat extending in a direction of said fastening shank to form said support area and said adjustment area and to allow elastic relative movement therebetween, one side of said slots communicating with an exterior;
support surfaces on said support area converging toward one another and engageable with said first contact surfaces, said support surfaces and said first contact surfaces being correspondingly convergent;
an adjustment surface on said adjustment area extending transversely to said support surfaces and engageable with said second contact surface;
and
a fastening sleeve having internal threading screwed on external threading on said holder and having a clamping surface narrowing and converging toward said machining component, said external threading communicating with said slot, said clamping surface interacting with a corresponding narrowing circumferential surface of said seat through which said slots extend to move said support area and said adjustment area toward one another to clamp said supporting component therebetween.

5 more elements

A tool for cutting machinery, comprising:

a replaceable cutting element having a supporting component with first converging contact surfaces and with a second contact surface on said supporting component, and having a machining component;
a holder having a first end with a fastening shank and a second end with a seat receiving said supporting component;
a fastening component for fastening said supporting component in said seat, said fastening component including a support area and an adjustment area relatively movable toward and away from one another for fastening or replacing said cutting element;
slots in said seat extending in a direction of said fastening shank to form said support area and said adjustment area and to allow elastic relative movement therebetween, one side of said slots communicating with an exterior;
support surfaces on said support area converging toward one another and engageable with said first contact surfaces, said support surfaces and said first contact surfaces being correspondingly convergent;
an adjustment surface on said adjustment area extending transversely to said support surfaces and engageable with said second contact surface;
and
a fastening sleeve having internal threading screwed on external threading on said holder, said external threading communicating with said slot, said fastening sleeve including a central area resting on said external threading via said internal threading and on a front external circumferential surface of said seat and a front area of said holder at free ends of said fastening sleeve.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/516,413Filed 16 Jun 2003
Priority: DE 102 39 42228 Aug 2002
Published: US 2005/0220552 A16 Oct 2005
Granted: 8 Jul 2008
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

B23B 31/2012
Characterized by features relating primarily to remote control of the gripping means: threaded cam actuator
B23B 29/02
Holders for non-rotary cutting tools ; Boring bars or boring heads; Accessories for tool holders: boring bars
Y10T 407/2288
Resiliently biased clamp jaw: integral with holder
Y10T 408/95
Tool-support: with tool-retaining means