摘要:
An adjustable stop member, comprises three parts which are mounted in longitudinal alignment, with the overall length of the aligned parts being adjustable. The first part is an elongate cylindrical member which has one closed end and a threaded, elongate bore extending inwardly from the other end. The second part is an elongate rod which has external threads for mutual engagement with the internal threads of the first part. The second part further has a flat extending longitudinally along the surface thereof and an index line extending longitudinally along the surface thereof and an index line extending along the length of the flat. The third part is a nut which is threaded on the second part. The nut can be tightened against the first part for firmly securing the parts together in a releasable, fixed position. The nut has equally spaced markings around its circumference which form a scale used with the index line on the second part in setting a desired overall length of the stop member. A mechanical holder system is also provided for holding the stop member in a desired position when used with a machining apparatus such as a drilling machine, a milling machine or a lathe.
摘要:
A device for controlling the travel and travelling speed of one of the moving components of a machine-tool. It envisions a displaceable shuttle driven in synchronization with the rotation of the machine spindle and movable longitudinally relative to the machine, and an element having an operating inclined cam face and being adjustably mounted longitudinally and angularly of the shuttle for movement according to shuttle movement, and a finger operatively connected to the moving component of the machine-tool for the driving thereof and being actuated upon contact with the inclined cam face of the element, with the speed of displacement of the finger determining the travelling speed of the moving component and the stroke of the finger determining the stroke of the moving component and with the start of the travel of the moving component and the speed and stroke thereof being determined by the position of the said element and the slope of its cam face and the height of its cam face respectively.