JPS61181628U

JPS61181628U -

Info

Publication number: JPS61181628U
Application number: JP6672885U
Authority: JP
Priority date: 1985-05-04
Filing date: 1985-05-04
Publication date: 1986-11-12
Also published as: JPH0214889Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例であるツールホルダ
の頭部を一部切り欠いて示す正面図である。第２
図はそのツールホルダの一部切欠正面図である。
第３図は第２図における基部の要部を示す要部正
面断面図である。第４図および第５図はそれぞれ
第１図および第２図の軸部に形成されたテーパ穴
および溝の形状を示す要部断面図および要部側面
図である。第６図は、従来の結合装置の一例を示
す要部正面断面図である。１０：基部、１２：頭部、２０：工具挿入孔、
３４：ストツパ部材、３６：アーム、３８：長穴
、４０：雄ねじ、４２：アジヤストナツト、４６
：軸部、４７：筒状部、４８：嵌合孔、５２：座
面、５４：取付面、５６：第一部分、５８：第二
部分、６０：大径孔部、６２：小径孔部、６４：
雌ねじ孔、６６：テーパピン、６８：テーパ端部
、７０：テーパ穴、７２：溝。 FIG. 1 is a partially cutaway front view of the head of a tool holder according to an embodiment of the present invention. Second
The figure is a partially cutaway front view of the tool holder.
FIG. 3 is a front sectional view of the main part of the base in FIG. 2. 4 and 5 are a sectional view and a side view of a main part showing the shapes of the tapered hole and groove formed in the shaft part of FIGS. 1 and 2, respectively. FIG. 6 is a front sectional view of a main part showing an example of a conventional coupling device. 10: base, 12: head, 20: tool insertion hole,
34: Stopper member, 36: Arm, 38: Long hole, 40: Male thread, 42: Adjustment nut, 46
: Shaft part, 47: Cylindrical part, 48: Fitting hole, 52: Seat surface, 54: Mounting surface, 56: First part, 58: Second part, 60: Large diameter hole part, 62: Small diameter hole part, 64:
Female screw hole, 66: Tapered pin, 68: Tapered end, 70: Tapered hole, 72: Groove.

Claims

[Scope of Claim for Utility Model Registration] A shaft portion provided on one of a cutting tool or an intermediate member integrated with the cutting tool and a tool holding member is inserted into a fitting hole of a cylindrical portion provided on the other. At the same time as being fitted from the shaft end, a taper pin having a tapered end is screwed into the cylindrical portion from the outside in the radial direction so as to protrude into the fitting hole, and the tapered end is formed in the shaft. By being engaged with a portion of the inner circumferential surface of the radially tapered hole on the side closer to the shaft end, a seat surface formed adjacent to the shaft portion and substantially perpendicular to the shaft portion is engaged with the inner circumferential surface of the radially tapered hole. In a coupling device for a cutting tool and a tool holding member that are brought into close contact with a mounting surface formed on a shaped part, a first part is disposed on the side of the shaft part close to the seating surface, and a part slightly smaller than the first part is disposed on the side close to the shaft end. a second portion with a small diameter is formed in the second portion, and corresponding portions of the fitting hole are formed into a large diameter hole portion and a small diameter hole portion that exactly fit with the first portion and the second portion, and providing a groove extending in the circumferential direction of the shaft portion and then extending in the axial direction thereof to reach the shaft end;
A coupling device for a cutting tool and a tool holding member, characterized in that the groove is used as a passage for a tapered end portion when fitting the shaft portion into the fitting hole.