JPS61187641U

JPS61187641U -

Info

Publication number: JPS61187641U
Application number: JP7082385U
Authority: JP
Priority date: 1985-05-14
Filing date: 1985-05-14
Publication date: 1986-11-22
Also published as: JPH0417312Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例であるカム式自動工
具交換装置の要部を示す平面断面図であり、第２
図は同装置の正面断面図である。第３図は同装置
によつて工具の交換が行われる主軸および工具中
継装置にそれぞれ取り付けられた回転切削工具と
待機位置にある工具保持アームとの関係を示す略
図である。第４図および第５図は第３図に示した
工具保持アームを示す平面図および正面図（一部
断面）である。第６図は同装置におけるカムの展
開図である。第７図は同装置におけるウオームホ
イールおよびそれに形成されたカム溝の正面図で
ある。第８図は上記カムおよびカム溝により回転
軸に与えられる運動を示すタイムチヤートである
。１２：回転軸、１４，１６：回転切削工具、３
２：ボールスプライン、３６：工具保持アーム、
５０：ローラ、５１：ローラギヤ、５２：カム、
５８：環状溝、６０：レバー、６２，６６：ロー
ラ、６８：ウオームホイール、７０：カム溝、７
４：ウオーム、７６：電動モータ（回転駆動装置
）。 FIG. 1 is a plan sectional view showing the main parts of a cam-type automatic tool changer that is an embodiment of the present invention.
The figure is a front sectional view of the device. FIG. 3 is a schematic diagram showing the relationship between the rotary cutting tool attached to the spindle and the tool relay device, respectively, on which tools are exchanged by the device, and the tool holding arm in the standby position. 4 and 5 are a plan view and a front view (partially in section) showing the tool holding arm shown in FIG. 3. FIG. FIG. 6 is a developed view of the cam in the same device. FIG. 7 is a front view of the worm wheel and the cam groove formed in the same device. FIG. 8 is a time chart showing the motion given to the rotating shaft by the cam and cam groove. 12: Rotating axis, 14, 16: Rotating cutting tool, 3
2: Ball spline, 36: Tool holding arm,
50: Roller, 51: Roller gear, 52: Cam,
58: Annular groove, 60: Lever, 62, 66: Roller, 68: Worm wheel, 70: Cam groove, 7
4: Worm, 76: Electric motor (rotary drive device).

Claims

[Claims for Utility Model Registration] The axis of the main spindle passes through the midpoint of a line segment connecting the axis of the main spindle of the machine tool and the axis of a rotary cutting tool held in a position parallel to the main spindle by a tool holding device. A rotary cutting tool that is attached to the main shaft, the rotary shaft being rotatable around an axis parallel to the center, and a pair of arms extending from the rotary shaft in the radial direction of the rotary shaft in opposite directions. and a tool holding arm that engages with the rotary cutting tools held by the tool holding device from a direction substantially perpendicular to their axes to hold the rotary cutting tools, and the rotation of the pair of tool holding arms By a combination of forward and reverse movement in the shaft axis direction and forward and reverse rotation around the rotary shaft axis, the rotary cutting tool is removed from the main spindle and returned to the tool holding device, and at the same time, the rotary cutting tool is removed from the tool holding device. In an automatic tool changer that takes out another rotary cutting tool and attaches it to the main shaft, a roller gear is attached to the rotary shaft so as not to be relatively rotatable, and a rotary drive device is connected to a cam that meshes with the roller gear, and the cam has a shape When the cam rotates once, the pair of tool holding arms rotate from the standby position by a certain angle in the positive direction and engage with the rotary cutting tools held by the main shaft and the tool holding device, respectively. After the rotary cutting tools are removed from the spindle and the tool holding device, they are further rotated 180 degrees in the forward direction, and after the rotating cutting tools are inserted into the spindle and the tool holding device, they are rotated in the opposite direction by the predetermined angle and the A cam-type automatic tool changer characterized by having a shape that provides a movement to return to a standby position.