GB604431A - Universal cutting machine - Google Patents

Abstract

604,431. Severing by grinding; sawing. PRUITT, H. E. Nov. 14, 1944, No. 22483. [Classes 60 and 145 (ii)] A machine for cutting bars of steel or other material into lengths comprises a support, work clamping means carried by the support, rotary cutting means movable towards and away from the clamping means for cutting work held therein, means correlated with the cutting means for moving the clamping means to clamping position simultaneously with movement of the cutting means towards the work and means operated in accordance with the movement of the cutting means for locking the work against endwise movement prior to the effectiveness of the said clamping means. A gang of abrasive discs 43 or circular saws or other circular cutting members is mounted on a shaft 24 carried by a plate 17 movable vertically downwards on the pedestal 12 of the machine, to effect the severing, by a piston and cylinder 109. The shaft 24 is driven through belt and pulley by an electric motor pivotally mounted on the pedestal and biassed by a spring to tension the belt. The work B is pushed against an adjustable end stop 73, the part outside the machine being supported by a tubular member 65; fixed jaws 64 and sliding jaws 60 are provided for clamping the work on each side of the severing means, the workengaging parts being cut away at 62 to allow the severed sections of work to fall clear when the clamps are opened. The work also passes through the tubular part 103 of a slide 104 which is moved laterally to lock the work against lengthwise movement. The jaws 60 and slide 104 are connected to a bar 78 by bolts 83 serving to effect the opening movement and springs 84 which effect the closing movement; the bar 78 is pivotally mounted, on trunnions 79, and carries a roller 95 engaging a cam slot in a plate 85 adjustably secured to the plate 17 carrying the severing means, so that the bar 75 is rocked by the vertical movement of the plate 17. Liquid is sprayed on to the sides of the severing discs by a pipe 100 and pipes 99 having lateral holes 101.