平面接触面多边形转台接口第1部分:F、H和A型刀柄

[中文适用范围]： 本文件规定了具有平面接触面的多边形圆锥夹头（PTI）的尺寸。这些夹头是工具侧的部分，用于机器工具（例如 turret lathes, turning centres）与刀具载体（在切削过程中不旋转）之间的接口。本文件规定了三种工具侧接口类型，这些类型在面接触部分有所不同。所有类型的夹头本身设计相同。 F 型夹头在面接触部分有两个用于冷却液供应的孔（F = fluid），可用于两个安装位置（偏移 180°）。 H 型夹头在面接触部分有一个主要冷却液孔和一个中间工具位置的辅助冷却液孔（H = half）。对于 H 型 PTI 夹头，无法实现 180° 的偏移安装。 A 型夹头在面接触部分有两个用于主要冷却液供应的孔，以及另外两个用于驱动刀具载体（通过密封空气）的孔（A = air）。180° 的偏移安装是可能的。一个弹簧式直销属于夹头，可防止错误插入。 [外文原描述]： This document specifies the dimensions of polygonal taper shanks with flat contact surface (PTI). These shanks are the tool-side part of the interface to the (in cutting process non-rotating) tool carrier of machine tools (e.g. turret lathes, turning centres). This document specifies three types of tool-side interface types, which differ at the face contact. The tool shanks themselves are designed identically for all types. — Shank type F has two holes for the coolant supply (F = fluid) on the face contact for use in two installation positions (offset by 180°). — Shank type H has a primary coolant hole for the main supply and a secondary coolant hole for an intermediate tool position on the face contact (H = half). For PTI type H holders an installation position offset by 180° is not possible. — Shank type A has two holes on the face contact for the primary coolant supply and additional two holes for supplying the tool holder (driven tool) with sealing air (A = air). An installation position offset by 180° is possible. A spring-type straight pin belongs to the holder and avoids incorrect insertion.