Method of producing profiled workpieces
AssigneeMaschinenfabrik Lorenz AG
InventorHelmut Kramer
Life of this patent
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Abstract
Profiled workpieces are produced in a machine tool having a toolholder for at least one tool and work carrier for the workpieces, there being means for relative reciprocation of said toolholder and carrier. In the course of the reciprocatory movement the tool produces a profile on the workpiece in the direction of movement of the toolholder. The length of the profile in the stroke direction is greater than the length of the stroke movement. To produce the desired tool length, this is divided, in the direction of the relative movement between tool and workpiece, into at least two portions which are produced separately from one another.
Claims21
A method of producing a profiled workpiece on a machine tool having respective means for holding at least one planing or broaching forming tool that forms a workpiece during a reciprocating stroke and for holding a workpiece;
- said method comprising the steps of performing reciprocating stroke movements between the respective holding means, whereby said at least one tool forms a profile on the workpiece along a length of the workpiece in the direction of said movement;
- selecting said reciprocating stroke movements to be equal and shorter than said length of the workpiece;
- dividing said length of the workpiece into at least two portions;
- and forming said profile separately in each of said at least two portions with said selected stroke movement.
A method of producing a profiled workpiece on a machine tool having respective means for holding at least one planing or broaching forming tool that forms a workpiece during a reciprocating stroke and for holding a workpiece;
- said method comprising the steps of performing a reciprocating stroke movement between the respective holding means, whereby said at least one tool forms a profile on the workpiece along a length of the workpiece in the direction of said movement;
- selecting said reciprocating stroke movement to be shorter than said length of the workpiece;
- dividing said length of the workpiece into at least two portions;
- and forming said profile separately in each of said at least two portions with said selected stroke movement wherein respective profiled portions are produced by at least two said forming tools offset in relation to one another in the direction of stroke movement.
A method of producing a profiled workpiece on a machine tool having respective means for holding at least one planing or broaching forming tool that forms a workpiece during a reciprocating stroke and for holding a workpiece;
- said method comprising the steps of performing a reciprocating stroke movement between the respective holding means, whereby said at least one tool forms a profile on the workpiece along a length of the workpiece in the direction of said movement;
- selecting said reciprocating stroke movement to be shorter than said length of the workpiece;
- dividing said length of the workpiece into at least two portions;
- and forming said profile separately in each of said at least two portions with said selected stroke movement, and each said tool passes through respective entry and exit zones on the workpiece in forming a profiled portion and the entry and exit zones of adjacent portions are overlapped.
A method of producing a profiled workpiece on a machine tool having respective means for holding at least one planing or broaching forming tool that forms a workpiece during a reciprocating stroke and for holding a workpiece;
- said method comprising the steps of performing a reciprocating stroke movement between the respective holding means, whereby said at least one tool forms a profile on the workpiece along a length of the workpiece in the direction of said movement;
- selecting said reciprocating stroke movement to be shorter than said length of the workpiece;
- dividing said length of the workpiece into at least two portions;
- and forming said profile separately in each of said at least two portions with said selected stroke movement, such that the workpiece has a central axis of rotation and is rotationally symmetrical about said axis, and wherein the profile is produced portion by portion in the circumferential direction of said workpiece, the workpiece being rotated about its axis of rotation, and said at least one tool is a gear-shaping cutter which operates by the generating method, said tool having an axis of rotation about which it is rotated to and fro interdependently with said stroke movement of the tool.
A method of producing a profiled workpiece on a machine tool having respective means for holding at least one planing or broaching forming tool that forms a workpiece during a reciprocating stroke and for holding a workpiece;
- said method comprising the steps of performing a reciprocating stroke movement between the respective holding means, whereby said at least one tool forms a profile on the workpiece along a length of the workpiece in the direction of said movement;
- selecting said reciprocating stroke movement to be shorter than said length of the workpiece;
- dividing said length of the workpiece into at least two portions;
- and forming said profile separately in each of said at least two portions with said selected stroke movement, such that the workpiece has a central axis of rotation and is rotationally symmetrical about said axis, and wherein the profile is produced portion by portion in the circumferential direction of said workpiece, the workpiece being rotated about its axis of rotation, and said axis of rotation of the workpiece is adjustable relative to the stroke direction of the tool at different angular settings between the forming of respective profiled portions.
A method of producing a profiled workpiece on a machine tool having respective means for holding at least one planing or broaching forming tool that forms a workpiece during a reciprocating stroke and for holding a workpiece;
- said method comprising the steps of performing a reciprocating stroke movement between the respective holding means, whereby said at least one tool forms a profile on the workpiece along a length of the workpiece in the direction of said movement;
- selecting said reciprocating stroke movement to be shorter than said length of the workpiece;
- dividing said length of the workpiece into at least two portions;
- and forming said profile separately in each of said at least two portions with said selected stroke movement, wherein the profile depth is varied in a selectable manner along the length of the workpiece.
Dependencies are inferred from the claim text.