Tool for the rotary and cutting machining of workpieces
A tool for the rotary and cutting machining of workpieces includes a plurality of blades arranged on the tool body and arranged in blade arrangements, and a securing element that secures the blade arrangements to the tool body so that the blades cannot detach from the tool body during operation. The tool body is produced from plastic. The blades are incorporated into the tool body and the securing element provides a securing strip that is incorporated into the tool body and partially encloses the blade arrangements.
1 . A tool for the rotary and cutting machining of workpieces, comprising:
a plastic tool body;
a plurality of blades partially each at least partially inserted into a respective slot in the plastic tool body and arranged in blade arrangements; each of the plurality of blades positively-locked within the respective slot of the plastic tool body; and
a securing element circumferentially extending around the tool body and defining a plurality of openings through which the plurality of blades extend, the securing element securing the plurality of blades to the tool body to prevent the plurality of blades from detaching from lateral movement relative to the tool body during operation, the securing element comprising a securing strip extending around an outer surface of the tool body and at least partially surrounding each of the plurality of blades.
2 . The tool of claim 1 , wherein the securing strip surrounds the tool body in a circumferential direction.
3 . The tool of claim 2 , wherein the securing strip comprises a fiber composite material with a fiber content of at least 10% and the fiber comprises at least one of glass, aramid or carbon fibers.
4 . The tool of claim 3 , wherein fibers in the securing element comprise at least one continuous fiber.
5 . The tool of claim 4 , wherein the securing element is formed by wrapping the tool body with the at least one continuous fiber.
6 . The tool of claim 5 , wherein a winding direction of the at least one continuous fiber is parallel to a broadside of the plurality of blades.
7 . The tool of claim 3 , wherein the fiber composite material comprises unidirectional fibers and is arranged such that the unidirectional fibers are oriented in a circumferential direction of the tool.
8 . The tool of claim 2 , wherein the securing strip comprises a fiber composite material comprising an organic sheet.
9 . The tool of claim 1 , wherein the plurality of blades each have a slot through which the securing element is guided.
10 . The tool of claim 1 , wherein the blades are attached to the tool body by injection molding of the tool body.
11 . The tool of claim 1 , wherein the tool body comprises an inner ring and an outer ring, the inner ring and the outer ring connected to each other by a plurality of ribs.
12 . The tool of claim 11 , wherein the inner ring forms a hub.
13 . The tool of claim 11 , wherein the inner ring, the outer ring and the plurality of ribs in the tool body all have substantially a same wall thickness.
14 . The tool of claim 11 , wherein the plurality of ribs in the tool body are each oriented radially.
15 . The tool of claim 1 , wherein the securing element is firmly bonded to the tool body.
16 . The tool of claim 1 , wherein the securing element comprises a metal grid.
17 . The tool of claim 1 , wherein the plurality of blades in the tool body are not replaceable.
18 . The tool of claim 1 , further comprising a bolt inserted through a hole in the plurality of blades of the blade arrangement, the bolt positively locked to the securing element.