Indexable cutting insert and indexable cutting insert holder
A cutting blade and indexing technology, which is applied in the direction of cutting blades, forming knives, turning equipment, etc., can solve the problem that the cutting edge cannot be defined sufficiently and accurately, and achieve the effect of precise positioning and fixing
Active Publication Date: 2013-12-18
WALTER AG
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AI Technical Summary
Problems solved by technology
In conventional indexable cutting inserts, it necessarily has the consequence that the locating and support surfaces over which the indexable cutting insert is fixed to the indexable cutting cartridge holder are positioned such that at the corresponding working cutting edge above, relatively unfavorable leverage conditions act on the blade, which lead to the blade being pried out of its pocket or can at least cause a small change in the position of the blade, so that the position of the cutting edge is also not defined with sufficient precision
Method used
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Embodiment Construction
[0036] The indexable cutting insert has four cutting edges 4a, 4b, 4c and 4d, in figure 1 The four cutting edges extend perpendicular to the plane of the paper. These four cutting edges define the corners of an imaginary quadrilateral, in particular a rectangle, drawn by dashed lines and comprising long sides 13 and short sides 14 . The actual peripheral surfaces 16a, 16b, 16c and 16d always extending between the cutting edges 4a, 4b, 4c and 4d follow paths deviating from the straight sides 13 and 14 in the form of portions angled relative to each other, so The peripheral surface protrudes partially convexly beyond the side 14 on the short side 14, but is again concave in the center and has positioning notches 5a, 5b there. Peripheral surfaces 16a and 16c extending along the long side 13 are also recessed relative to the long side 13 so as to form substantially triangular cutting tips 1a, 1b, 1c and 1d in plan view from The main part 1 of the body protrudes toward the corner...
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The present invention relates to an indexable cutting insert (10) for grooving or parting, consisting of a plate-like main body having two parallel main surfaces (2a, b) and a peripheral surface (16 a-d) that connects the two main surfaces and consists of a plurality of sections that are angled with respect to one another, wherein four cutting edges (4 a-d) that extend transversely to the main surfaces are provided on the peripheral surface (16 a-d) at the transition to sections, that are angled with respect to one another, of the peripheral surface, and wherein the position of the cutting edges defines a quadrilateral in the plan view of the main surfaces. In order to provide an indexable cutting insert and an associated indexable cutting insert holder, in which fixing with more favourable leverages is possible and which furthermore allow permanently more precise positioning of the cutting edges, it is proposed according to the invention that the quadrilateral has in each case two short and two long sides (13, 14) and that the cutting edges (4 a-d) are oriented in each case in opposite directions in the peripheral direction at adjacent corners and are oriented in each case in the same direction at diagonally opposite corners of the quadrilateral.
Description
technical field [0001] The invention relates to an indexable cutting insert for grooving or parting off, comprising a plate-shaped body with two parallel main surfaces and a peripheral surface connecting the two main surfaces and comprising portions angled relative to each other, wherein four cutting edges extending transversely to said main surfaces are arranged on the peripheral surface at the transitions of the portions of the peripheral surface angled relative to each other , and wherein, in plan view of the main surface, the position of the cutting edge defines a quadrilateral. [0002] The invention also relates to an indexable cutting insert holder for an indexable cutting insert of the type described above, the indexable cutting insert holder having an insert sleeve and a side surface, and having a recess adjoining said side surface, the recess There are faces extending generally perpendicular to the side surfaces and angled relative to each other. Background techni...
Claims
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IPC IPC(8): B23B27/04B23B27/08
CPCB23B27/04B23B27/08B23B2200/048B23B2200/3627B23B2200/369B23B2205/12B23B2260/104Y10T407/2274Y10T407/23B23B27/16B23B29/04B23B27/164
Inventor 鲁迪·策布克里斯蒂安·班德拉
Owner WALTER AG