BS ISO 26623-1:2014 pdf download.Polygonal taper interface with flange contact surface Part 1 : Dimensions and designation of shanks
This part of ISO 26623 specifies dimensions for polygonal taper interfaces with flange contact surface — polygon-shanks for automatic and manual tool exchange to be applied on machine tools (e, g. turning machines, drilling machines, milling machines. and turn/milling centres, as well as grinding machines). A range of shank sizes Is specified.
These shanks incorporate a grooved flange to enable automatic tool exchange. The clamping can be realized by a circular groove using clamping segments or internal screw threads using centre-holts
The torque Is transmitted by form lock (polygon).
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 965-2, ISO general purpose metric screw threads — Tolerances — Part 2: Umits of sizes for general purpose external and internal screw threads — Medium quality
ISO 2768-1, General tolerances — Part 1: Tolerances for linear and angular dimensIons without individual tolerance indications
ISO 276B-2, General tolerances — Parr 2: Geometrical tolerances for features without indiuidual tolerance indications
3 Dimensions
3.1 General
Tolerances for linear dimensions for features without individual tolerance indications shall be of tolerance class Urn” in accordance with ISO 2768-1 and geometrical tolerances for features without individual tolerance indications shall be of tolerance class K’ In accordance with ISO 2768-2.
Tolerances for threads where tolerance is not stated shall be in accordance with ISO 965-2.
3.2 Polygon-shanks
The dimensions of polygon-shanks shall he as specified in Figure 1 and Eigurel and in Table 1.
NOTE Additional dimensions as in use for stationary tools are given in AnnexA. Additional recommendations for use and application. (i.e. balancing with a particular design for size 100). are given in AnnexB.
5 Designation
A polygon-shank in accordance with this part of ISO 26623 shall be designated by the following:
a) “POLYGON-SHANK”;
b) reference to this part of ISO 26623 (i.e. ISO 26623-1);
c) designation symbols PSC;
d) nominal size, in millimetres.BS ISO 26623-1 pdf download.ISO 26623-1-2014 pdf download
