JPS61148543U

JPS61148543U -

Info

Publication number: JPS61148543U
Application number: JP3247185U
Authority: JP
Priority date: 1985-03-06
Filing date: 1985-03-06
Publication date: 1986-09-12
Also published as: JPH0217789Y2

Description

[Brief explanation of the drawing]

図面第１図〜第９図は本考案の実施例を示し、
第１図はホルダーの斜視図、第２図は工作機械の
回転主軸の一部切欠斜視図、第３図はマガジンの
正面図、第４図はマガジンの一部切欠側面図、第
５図はホルダーのリングの後面図、第６図は第４
図におけるＡ―Ａ断面図、第７図は第４図におけ
るＢ―Ｂ断面図、第８図および第９図は回転主軸
の係合凹所とホルダーのノブとの関係を説明する
説明図、第１０図は従来のホルダーの断面図、第
１１図は第１０図における矢示方向図である。３……ホルダー、４……鍔、５……ばね、６…
…リング、７……突子、８……摺接凹所、９……
係合凹所、１０……ノブ、１３……対向平面部、
１６……突条、１７……固定枠、１８……作動枠
、１９……支持ピン、２０……横孔、２１……シ
リンダー、２４……固定枠のホルダー入込部、２
５……作動枠のホルダー入込部、２６……溝、２
７……段部、Ｍ……回転主軸。 Drawings 1 to 9 show embodiments of the present invention,
Fig. 1 is a perspective view of the holder, Fig. 2 is a partially cutaway perspective view of the rotating spindle of the machine tool, Fig. 3 is a front view of the magazine, Fig. 4 is a partially cutaway side view of the magazine, and Fig. 5 is a partially cutaway perspective view of the rotating spindle of the machine tool. Rear view of the ring of the holder, Figure 6 is the 4th
7 is a sectional view taken along line BB in FIG. 4, FIGS. 8 and 9 are explanatory diagrams illustrating the relationship between the engagement recess of the rotating main shaft and the knob of the holder, FIG. 10 is a sectional view of a conventional holder, and FIG. 11 is a view in the direction of the arrow in FIG. 3... Holder, 4... Tsuba, 5... Spring, 6...
...Ring, 7...Protrusion, 8...Sliding recess, 9...
Engagement recess, 10...knob, 13...opposing plane part,
16... Projection, 17... Fixed frame, 18... Operating frame, 19... Support pin, 20... Horizontal hole, 21... Cylinder, 24... Holder insertion part of fixed frame, 2
5...Holder insertion part of the operating frame, 26...Groove, 2
7...Stepped portion, M...Rotating main shaft.

Claims

[Scope of utility model registration request]

Insert the holder holding the cutting tool into the rotating spindle of the machine tool until the holder's collar contacts the front end surface of the rotating spindle and turn it 90 degrees.The holder will be prevented from coming out within the rotating spindle and will be pressed against the front surface of the flange by a spring. protrusions protruding in the axial direction at two locations on the diameter of the ring to be attached, and the protrusions fit into sliding fitting recesses provided on the collar at two locations on the diameter so as to be freely slidable in the axial direction, The protrusion end that appears on the rear surface of the tsuba is attached to the front end surface of the rotating main shaft with a diameter of 2
The collar of the holder and the ring are configured to be engaged with engagement recesses provided at certain locations to prevent rotation of the holder, and the ring has a rectangular shape, and the opposing surface of the ring that does not have a protrusion is the collar. A fixed frame of a magazine, which has a protrusion formed by cutting off one step near it, and consists of a plate-shaped fixed frame perpendicular to the rotational main axis, and a plate-shaped operating frame that faces the fixed frame so as to be movable back and forth. and an entry section for inserting the holder into the operating frame with the opposing surface horizontally provided, and grooves into which the collar of the holder is slidably fitted on horizontal upper and lower surfaces of the entry section of the fixed frame. A stepped portion is provided on both horizontal upper and lower surfaces of the insertion portion of the operating frame, and the step portion contacts the rear surface of the protrusion of the ring, and the holder whose collar is supported by the fixed frame is operated by the operating frame. A cutting tool changing device characterized in that a ring is moved in the axial direction to cause protrusions to appear and disappear.