摘要:
A milling machine receives a strand or billet from a continuous casting machine. The machine has a frame and rollers that mount it for back and forth movement on rails in the line of the feed of the strand from the casting machine. A pair of pressure rollers, one above the other, feed the strand therebetween, one of the rollers being rotated by a motor. The milling machine has support tables adjustable vertically, over which the strand moves, rotating milling cutters above and below the strand for milling the same and pressure tables opposite the cutters so that the top and bottom of the strand are both milled. The two sets of electrical circuit limit switches along the rails. On the bottom portion frame of the movable milling machine is adjustable mounted a rail which contacts an actuating arm of the switches as it moves there over. These limit switches are in a control circuit to an electric motor that drives one of the feed rollers. The feed rolls draw the strand through the milling machine. If the circumferential speed of the feed rolls is faster than the medium strand speed from the drawing mechanism of the casting machine, the milling machine is moved towards the continuous casting plant. If it is lower, it moves away from it. The speed is graduated from switch to switch of each set.
摘要:
A method of milling a piece of raw steel stock comprising: arranging a minimum of four solid pole extensions on top surface segments of a magnetic chuck such that the solid pole extensions are relatively evenly distributed under a piece of raw steel stock and within 2 inches of a perimeter of the piece of raw steel stock; arranging multiple mobile pole extensions beneath the piece of raw steel stock and on every other top surface segment of the magnetic chuck under the piece of raw steel stock that is not occupied by the solid pole extensions but beneath the piece of raw steel stock, each of the multiple mobile pole extensions having a biased top portion that contacts the piece of raw steel stock; milling the piece of raw steel stock with a face mill that generates steel chip as swarf; and recycling the steel chip.
摘要:
A method of milling a piece of raw steel stock comprising: arranging a minimum of four solid pole extensions on top surface segments of a magnetic chuck such that the solid pole extensions are relatively evenly distributed under a piece of raw steel stock and within 2 inches of a perimeter of the piece of raw steel stock; arranging multiple mobile pole extensions beneath the piece of raw steel stock and on every other top surface segment of the magnetic chuck under the piece of raw steel stock that is not occupied by the solid pole extensions but beneath the piece of raw steel stock, each of the multiple mobile pole extensions having a biased top portion that contacts the piece of raw steel stock; milling the piece of raw steel stock with a face mill that generates steel chip as swarf; and recycling the steel chip.
摘要:
A device and a method are provided for machining running surfaces on head end pieces of revolving flats. The device has a base frame with a longitudinal axis and is provided with clamping devices for fixing the revolving flat at at least two points distributed on the longitudinal axis. The device comprises two chip-removal machining devices which are arranged outboard the clamping devices viewed in the direction of the longitudinal axis. A sliding guide is provided for accommodating the clamping devices in the device.