JPH0382162U - - Google Patents

Description

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

第１図は本考案の一実施例を示す側断面図、第
２図は側面図、第３図は平断面図である。第４図
Ａ，Ｂはねじの進行長さと締付トルクとの関係を
示す各々の説明図である。 また、図面中１は固定ケース、２は可動ケース
、５はモータ、７はトルククラツチ、８は第１は
すば歯車、１２は第２はすば歯車、１３は駆動軸
、１５はマグネスケールである。 FIG. 1 is a side sectional view showing an embodiment of the present invention, FIG. 2 is a side view, and FIG. 3 is a plan sectional view. FIGS. 4A and 4B are explanatory diagrams showing the relationship between the advancing length of the screw and the tightening torque. In addition, in the drawing, 1 is a fixed case, 2 is a movable case, 5 is a motor, 7 is a torque clutch, 8 is a first helical gear, 12 is a second helical gear, 13 is a drive shaft, and 15 is Magnescale. It is.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] モータを支持するとともに該モータによりトル
クリミツタを介して回転される第１歯車を収装し
た固定ケースと、前記第１歯車と噛合する第２歯
車を収装するとともに該第２歯車に互いの軸心を
一致させて一体的に連結された駆動軸の先端側を
貫通しかつ前記駆動軸の軸心方向へ移動可能に前
記固定ケースに支持された可動ケースと、該可動
ケースを前記駆動軸の先端側へ常時付勢するばね
部材と、前記駆動軸の伸縮長さを連続して計測す
る計測手段とを備えることを特徴とするねじ締付
装置。 A fixed case that supports a motor and houses a first gear that is rotated by the motor via a torque limiter, and a second gear that meshes with the first gear, and that the second gear has mutual axes. a movable case that passes through the distal end side of a drive shaft integrally connected with the movable case and is supported by the fixed case so as to be movable in the axial direction of the drive shaft; A screw tightening device comprising: a spring member that constantly biases the drive shaft; and a measuring means that continuously measures the length of expansion and contraction of the drive shaft.