Improvements in instruments for the adjustment and measuring of angles in machine-tools
Реферат: 630,332. Protractors. JAHRL, E. V. T. March 14, 1947, No. 7228. Convention date, March 26, 1945. [Class 97 (iii)] [Also in Group XXII] The block 10 of sine-bar 1 is provided with a slot 17, the slot being V-shaped in its upper portion to engage tangentially two displaceable cylindrical studs 18, 19 which are provided at their outer ends with centre apertures 20, 21 to receive the centres of a lathe. The studs 18, 19 may be secured in any desired axial position by means of screws 24, 25, threaded into the studs and extending through longitudinal slits 26, 27 in the block 10. The screws 24, 25 are provided with heads 22, 23 which engage wedge-shaped washers 28, 29 bearing on slightly inclined surfaces 30, 31. The sine-bar 1 provided with two cylindrical rollers 3, 4 one of which is journalled at both ends in elongated slots 9 in bearing rails 11 and the bar is secured to the block 10 by a spring 15 attached at one end to a pin 14 in a bore 13 of the block and at the other to the sine-bar by a pin. 16. In use the block 10 is secured between the centres of the lathe and gauges appropriate to the angle required between the centre-line and the work-piece are inserted between the measuring plane 10a and the roller 4. A level 32 is provided which may be applied to either side of the block 10. In a modification only one stud need be used and this stud is provided with an outer portion suitable for insertion into the spindle. of the machine tool. For measurement of small angles gauges may be inserted between the measuring plane and both rollers, the apertures 9 for the journals of roller 3 being slotted for this purpose.
Workpiece measurement method in machine tool and machine tool
Номер патента: US20240342806A1. Автор: Hideki Nagasue. Владелец: DMG Mori Co Ltd. Дата публикации: 2024-10-17.