Tools, machines, and methods for machining planar workpieces

Patent metadata

Field	Value
Publication number	US-11376647-B2
Application number	US-201916363516-A
Country	US
Kind code	B2
Filing date	Mar 25, 2019
Priority date	Sep 26, 2016
Publication date	Jul 5, 2022
Grant date	Jul 5, 2022

Abstract

Tools for machining planar workpieces are provided that include an upper tool, an upper main body, and at least one tool body on the upper main body having a cutting edge. The tools further include a lower tool having a lower main body with a rest surface for the workpiece and a positioning axis oriented perpendicular to the rest surface, at least one counter tool body on the lower main body that has a counter cutting edge that is a closed contour. The cutting edge of the at least one tool body has a cutting contour that corresponds to the closed contour of the at least one counter tool body, and at least one group of at least two counter tool bodies on the lower tool can be associated with the closed contour of the least one tool body.

First claim

What is claimed is:

1. A tool for machining planar workpieces, comprising:
an upper tool having a clamping shaft and an upper main body that lie on a common upper positioning axis;
at least one tool body arranged on the upper main body opposite the clamping shaft, wherein the tool body has a cutting edge;
a lower tool having a lower main body with a rest surface for the workpiece and a lower positioning axis oriented perpendicular to the rest surface; and
at least one group of at least two counter tool bodies arranged on the lower main body and each comprising respective counter cutting edges,
wherein the at least two counter tool bodies of the at least one group lie outside of an imaginary circle in the rest surface of the lower tool, wherein the circle is concentric to the lower positioning axis at a distance from the lower positioning axis that is smaller than a distance from the lower positioning axis to the at least two counter tool bodies of the at least one group,
wherein the cutting edge of the at least one tool body has a cutting contour that corresponds to counter cutting contours of the counter cutting edges of the group of at least two counter tool bodies,
wherein the at least one group of at least two counter tool bodies on the lower tool can be associated with the cutting contour of the at least one tool body via a traversing movement perpendicular or inclined to the upper positioning axis of the upper tool or the lower positioning axis of the lower tool, or both, or by a combination of the traversing movement perpendicular or inclined to the upper or lower positioning axis and by a rotary movement about the upper positioning axis of the upper tool or the lower positioning axis of the lower tool, or both, and
wherein, in the at least one group, the counter cutting contour of a first counter tool body corresponds to the cutting contour of the at least one tool body with a first cutting gap width and the counter cutting contour of a second or further counter tool body corresponds to the cutting contour of the at least one tool body with a second or further cutting gap width.

2. The tool of claim 1 , wherein the at least one group of counter tool bodies is insertable in the lower main body each individually on a main body insert or together on a main body insert.

3. The tool of claim 2 , wherein the main body insert is rotatable with respect to the main body of the lower tool.

4. The tool of claim 1 , wherein the upper tool comprises a multi-tool and has at least two tool bodies each having a cutting edge and a cutting contour, and wherein the lower tool has at least two groups of counter tool bodies.

5. A tool for machining planar workpieces, comprising:
an upper tool having a clamping shaft and an upper main body that lie on a common upper positioning axis;
at least one tool body arranged on the upper main body opposite the clamping shaft, wherein the tool body has a cutting edge;
a lower tool having a lower main body with a rest surface for the workpiece and a lower positioning axis oriented perpendicular to the rest surface; and
at least one group of at least two counter tool bodies arranged on the lower main body and each comprising respective counter cutting edges,
wherein the cutting edge of the at least one tool body has a cutting contour that corresponds to counter cutting contours of the counter cutting edges of the group of at least two counter tool bodies,
wherein the at least one group of at least two counter tool bodies on the lower tool can be associated with the cutting contour of the at least one tool body via a traversing movement perpendicular or inclined to the upper positioning axis of the upper tool or the lower positioning axis of the lower tool, or both, or by a combination of the traversing movement perpendicular or inclined to the upper or lower positioning axis and by a rotary movement about the upper positioning axis of the upper tool or the lower positioning axis of the lower tool, or both,
wherein, in the at least one group, the counter cutting contour of a first counter tool body corresponds to the cutting contour of the at least one tool body with a first cutting gap width and the counter cutting contour of a second or further counter tool body corresponds to the cutting contour of the at least one tool body with a second or further cutting gap width, and
wherein the first and at least one further group of counter tool bodies do not lie on an imaginary circle in the rest surface of the lower tool, wherein the circle is concentric to the lower positioning axis at a distance from the lower positioning axis that is smaller or larger than a distance from the lower positioning axis to the first and the at least one further group of counter tool bodies.

6. A processing machine for machining planar workpieces, comprising:
an upper tool having a clamping shaft and an upper main body and that is moveable along an upper stroke axis by a stroke drive device in a direction towards or away from a workpiece to be processed by the upper tool, and that is positionable along an upper horizontal positioning axis running perpendicular to the upper stroke axis;
an upper drive assembly configured to displace the upper tool along the upper positioning axis;
a lower tool having a lower main body with a rest surface for the workpiece and that is moveable along a lower stroke axis by a stroke drive device in the direction of the upper tool, and that is positionable along a lower horizontal positioning axis oriented perpendicular to the upper stroke axis of the upper tool and oriented perpendicular to the rest surface;
a lower drive assembly configured to displace the lower tool along the lower positioning axis;
a controller configured to control the upper and lower drive assemblies and to control a traversing movement of the upper tool along the upper horizontal positioning axis and a traversing movement of the lower tool along the lower horizontal positioning axis independently of each other;
at least one tool body arranged on the upper main body opposite the clamping shaft, wherein the tool body has a cutting edge; and
at least one group of at least two counter tool bodies arranged on the lower main body and each comprising respective counter cutting edges,
wherein the at least two counter tool bodies of the at least one group lie outside of an imaginary circle in the rest surface of the lower tool, wherein the circle is concentric to the lower positioning axis at a distance from the lower positioning axis that is smaller than a distance from the lower positioning axis to the at least two counter tool bodies of the at least one group,
wherein the cutting edge of the at least one tool body has a cutting contour that corresponds to counter cutting contours of the counter cutting edges of the group of at least two counter tool bodies,
wherein the at least one group of at least two counter tool bodies on the lower tool can be associated with the cutting contour of the at least one tool body via a traversing movement perpendicular or inclined to a vertical positioning axis of the upper tool or lower tool or both, or by a combination of the traversing movement perpendicular or inclined to the vertical positioning axis and by a rotary movement about the upper vertical positioning axis of the upper tool or lower vertical positioning axis of the lower tool, or both, and
in the at least one group, the counter cutting contour of a first counter tool body corresponds to the cutting contour of the at least one tool body with a first cutting gap width and the counter cutting contour of a second or further counter tool body corresponds to the cutting contour of the at least one tool body with a second or further cutting gap width.

7. The machine tool of

Assignees

• Trumpf Werkzeugmaschinen Gmbh Co Kg

Inventors

• Klinkhammer Marc
• Traenklein Dennis
• Wilhelm Markus
• Hank Rainer
• Schindewolf Leonard
• Ockenfuss Simon
• Kappes Jens
• Tatarczyk Alexander
• Neupert Joerg
• Bitto Dominik
• Maatz Markus
• Jakisch Christian

Classifications

• Y10T83/8732

  Turret of tools · CPC title

• B21D28/125 Primary

  with multi-tools · CPC title

• B21D28/34

  Perforating tools; Die holders · CPC title

• Y10T83/8733

  Tool movable to cooperate selectively with one of a plurality of mating tools · CPC title

• B26F2001/4427

  combining cutting and forming operations · CPC title