Cutting tool and system for attaching a cutting member to a cutter
AssigneeIscar, Ltd.
InventorGil Hecht
Life of this patent
Estimating the term…
Abstract
A system for attaching a cutting member to a cutter body includes a pin, a clamping bolt and an adjustment bolt. The pin has a longitudinal axis and at least a first attachment bore and a second attachment bore. The clamping bolt has a clamping section which is formed to releasably secure the cutting member to the cutter body and has a first attachment section which is formed to be releasably secured in the first attachment bore of the pin. The system may have an adjustment bolt that has an adjustment section which is formed to adjust the position of the cutting member relative to the cutter body and has a second attachment section which is formed to be releasably secured in the second attachment bore of the pin.
Claims35
A cutting tool comprising:
- a cutter body having a longitudinal axis and comprising:
- a front face and a peripheral surface extending rearwardly from the front face;
- at least one pin bore formed at the front face of the cutter body;
- and
- at least one cutter pocket provided on the peripheral surface of the cutter body, the cutter pocket having a pocket clamping opening which communicates with the at least one pin bore;
- a cutting member located in the at least one cutter pocket, the cutting member comprising a clamping hole;
- a pin located in the at least one pin bore, the pin comprising a first attachment bore and a second attachment bore;
- a clamping bolt having a first attachment section which engages the first attachment bore of the pin, the clamping bolt releasably securing the cutting member to the cutter body;
- and
- an adjustment bolt having a second attachment section which engages the second attachment bore of the pin, the adjustment bolt abutting the cutting member.
A system for attaching a member to a body, the system comprising:
- a pin having a longitudinal axis and a generally cylindrical outer shape, the pin comprising at least a first attachment bore and a second attachment bore;
- a clamping bolt having a clamping section which is formed to releasably secure the member to the body and having a first attachment section which is formed to be releasably secured in the first attachment bore of the pin;
- and
- an adjustment bolt having an adjustment section which is formed to adjust the position of the member relative to the body and having a second attachment section which is formed to be releasably secured in the second attachment bore of the pin.
A system for attaching a member made of a first material of a first hardness to a body made of a second material of a second hardness less than the first hardness, the system comprising:
- a pin having a longitudinal axis and a generally cylindrical outer shape, the pin comprising at least a first attachment bore and being made of a third material of a third hardness greater than the second hardness of the second material of the body;
- and
- at least a clamping bolt having a clamping section which is formed to firmly attach the member to the body and having a first attachment section which is formed to be firmly attached in the first attachment bore of the pin.
A cutting member having opposite ends and comprising:
- a cutting section at one end, said cutting section including pocket configured to retain a cutting insert or a cutting plate;
- a concave adjustment section at an opposite, second end;
- a clamping hole between the first and second ends, the clamping hole configured to receive a clamping bolt for securing the cutting member to a cutter body;
- and
- at least one concave slanted portion spaced apart from the clamping hole provided in said concave adjustment section, the concave slanted portion configured to engage an adjustment bolt for axial adjustment of the cutting member.
A method for assembling a cutting tool comprising the steps of:
- (a)—inserting a pin, having a pin clamping bore and a pin adjustment bore, into a pin bore extending axially rearwardly from a cutter front face of a cutter body;
- (b)—inserting a cutting member axially rearwardly from the cutter front face into a cutter pocket of the cutter body, the cutter pocket being located in a peripheral surface of the cutter body, such that radial abutment surfaces of the cutting member and member tangential abutment surfaces of the cutting member slide, respectively, against a pocket base and pocket tangential abutment surfaces;
- (c)—inserting a clamping bolt through a cutting member clamping hole, through a pocket clamping opening provided in the cutter pocket, and threadingly engaging the clamping bolt into the pin clamping bore without final tightening of the clamping bolt;
- (d)—inserting an adjustment bolt under a concave slanted portion of the cutting member, through the pocket clamping opening, and threadingly partially engaging it into the pin adjustment bore;
- (e)—continuing tightening the adjustment bolt such that a head thereof is supported against a cylindrical section of the pocket clamping opening, and, simultaneously, a slanted head portion of the adjustment bolt's head presses generally axially forwardly against the concave slanted portion of the cutting member;
- (f)—continuing tightening the adjustment bolt so that the cutting member moves axially forwardly with respect to the cutter body until the cutting member reaches its required axial position with respect to other cutting members in the cutting body, such that cutting edges of all cutting members are at the same level;
- (g)—final tightening the clamping bolt to tightly retain the cutting member within the pocket;
- (h)—final tightening the adjustment bolt.
Dependencies are inferred from the claim text.