公开(公告)号：US4632614A

公开(公告)日：1986-12-30

申请号：US527257

申请日：1983-07-29

Applicant: Gerhard Rall ,  Gunther Hertel ,  Karl G. Hertel ,  Hermann Kastner

Inventor： Gerhard Rall ,  Gunther Hertel ,  Karl G. Hertel ,  Hermann Kastner

IPC: B23B29/32 ,  B23B29/04 ,  B23B29/24 ,  B23Q17/24 ,  G01B11/16 ,  B23B29/12 ,  B23C5/26

CPC classification number: G01B11/16 ,  B23B29/046 ,  B23B29/244 ,  B23Q17/24 ,  B23B2260/084 ,  Y10T279/17598 ,  Y10T409/309464 ,  Y10T82/2591

Abstract: A composite tool unit comprising a tool shank, a tool head a chuck, a drawbar which is slidable in the longitudinal direction of the tool shank and a pulling shank which projects from the tool head. The drawbar and pulling shank are engaged around by the chuck, which is disposed in the tool shank axially to slide between an opening position and a closure position. The tool shank comprises an inner conical face which tapers in the direction of the drawbar and co-operates with outer conical segments disposed on the clamping jaws. The zones of the drawbar 8 and pulling shank 8 of the tool head engaged around by the chuck have respective projections. The flank of the radial projection of the drawbar which is remote from the tool head registers in each position of the clamping jaws with radially inwardly extending projections thereof to transmit an axial pull to the clamping jaws, whereas the projection of the pulling shank in relation to the clamping jaw projections registers only in the closure position of the chuck. The tool head is pulled via the drawbar, the chuck and the pulling shank into a positive connection (Hirth-type serrations) with the tool shank.

Abstract translation: 一种复合工具单元，包括工具柄，工具头，卡盘，可沿工具柄的纵向方向滑动的牵引杆和从工具头突出的拉杆。 牵引杆和牵引杆通过卡盘啮合，卡盘轴向设置在工具柄中，以在打开位置和关闭位置之间滑动。 工具柄包括沿着拉杆的方向逐渐变细的内圆锥面，并与设置在夹爪上的外圆锥段相配合。 由卡盘卡合的工具头的牵引杆8和牵引杆8的区域具有相应的突起。 牵引杆的远离工具头的径向突出部分的侧面在夹爪的每个位置处都有径向向内延伸的突起，以将轴向拉力传递到夹爪，而拉柄相对于 夹紧爪突起只能卡在卡盘的关闭位置。 工具头通过牵引杆，卡盘和牵引杆被拉到与工具柄的正连接（Hirth型锯齿）。