JPH023306U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は工具着脱装置内蔵主軸機構の切断図、
第２図は第１図のＡ―Ａ線視切断図である。 ３……主軸、４……引張り棒、１１……スリー
ブ、１３……第２ばね、１６……第１ばね、１７
……中間軸、１８……駆動軸、２１……第２ピス
トン、２３……第１ピストン。 Figure 1 is a cutaway view of the spindle mechanism with built-in tool attachment/detachment device.
FIG. 2 is a cutaway view taken along the line AA in FIG. 1. 3...Main shaft, 4...Tension rod, 11...Sleeve, 13...Second spring, 16...First spring, 17
... intermediate shaft, 18 ... drive shaft, 21 ... second piston, 23 ... first piston.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 主軸先端に挿入された工具５を主軸３に装着す
るばね１６部材の装着を解除する第１ピストン２
３部材と、工具のゆるみを自動的に防止する機構
を有し工具をクランプする方向にのみ引張り棒４
と係止する関係に構成されたスリーブ１１部材と
、前記引張り棒と関係なく該スリーブ部材を移動
させ前記工具を強力にクランプするばね１３を圧
縮して工具着脱準備をする第２ピストン２１部材
とを備える主軸構造において、主軸と主軸用駆動
軸との間に軸方向移動且つ回転可能に一線上に中
間軸を設け、前記第１ピストン部材及び前記第２
ピストン部材を該中間軸の外側に同心且つ直列に
配設し、前記ばね部材及び前記スリーブ部材を前
記中間軸の内側に配設してユニツト化したことを
特徴とする工具着脱装置内蔵形主軸構造。 The first piston 2 releases the spring 16 member that attaches the tool 5 inserted into the tip of the spindle to the spindle 3
3 members and a tension rod 4 that has a mechanism that automatically prevents the tool from loosening and is only in the direction of clamping the tool.
a second piston 21 member that moves the sleeve member independently of the pull rod and compresses a spring 13 that strongly clamps the tool to prepare for attachment and detachment of the tool; In the main shaft structure, an intermediate shaft is provided in line between the main shaft and the main shaft drive shaft so as to be movable and rotatable in the axial direction, and the first piston member and the second
A main shaft structure with a built-in tool attachment/detachment device, characterized in that a piston member is arranged concentrically and in series on the outside of the intermediate shaft, and the spring member and the sleeve member are arranged inside the intermediate shaft to form a unit. .