Counter-roller active power flexible spinning device for large cylinder

A counter-roller active power flexible spinning device for a large cylinder, comprising:

• a rack unit, comprising a base, inner pillars, outer pillars, and an inner roller disk, wherein the inner pillars and the outer pillars are both connected to the base, a distance between each outer pillar and a center of the base is greater than that between each inner pillar and the center of the base, and the inner roller disk is connected to one end, away from the base, of each inner pillar;
• a spindle unit, comprising a spindle platform, a spindle turntable, a first driver, second drivers, and workpiece fixtures, wherein the spindle platform is slidably connected to the inner pillars, the first driver is fixed onto the base, an output end of the first driver is in transmission connection with the spindle platform, the spindle turntable is rotatably connected to the spindle platform, the second drivers are fixed onto the spindle platform, output ends of the second drivers are in transmission connection with the spindle turntable, the workpiece fixtures are arranged on the spindle turntable, and the workpiece fixtures are able to fix a blank to be formed;
• an outer roller unit, comprising outer rollers, outer roller seats, third drivers, and fourth drivers, wherein the outer rollers are rotatably connected to the outer roller seats, the third drivers are fixed onto the outer roller seats, and output ends of the third drivers are in transmission connection with the outer rollers;
• the outer roller seats are slidingly arranged on the outer pillars;
• a reciprocating sliding direction of each outer roller seat is perpendicular to the rotation axis of the spindle turntable, and an extension line of a sliding route of each outer roller seat has an intersection point with the axis of the spindle turntable;
• the fourth drivers are fixed onto the outer pillars, and output ends of the fourth drivers are in transmission connection with the outer roller seats;
• and
• an inner roller unit, comprising inner rollers, inner roller seats, fifth drivers, and sixth drivers, wherein the inner rollers are rotatably connected to the inner roller seats, the fifth drivers are fixed onto the inner roller seats, output ends of the fifth drivers are in transmission connection with the inner rollers, and the inner rollers are in one-to-one correspondence with the outer rollers;
• the inner roller seats are slidingly arranged on the inner roller disk;
• a reciprocating sliding direction of each inner roller seat is perpendicular to the rotation axis of the spindle turntable, and an extension line of a sliding route of each inner roller seat has an intersection point with the axis of the spindle turntable;
• the sixth drivers are fixed onto the inner roller disk, and output ends of the sixth drivers are in transmission connection with the inner roller seats;
• wherein:
• an outer roller shaft is connected to each outer roller;
• the output end of each third driver is connected to the outer roller shaft by a spline;
• a stop is connected to each fourth driver and is fixed onto the outer pillar;
• an outer roller feeding screw is connected to the output ends of each fourth driver;
• an outer roller feeding nut is connected to the outer roller seat;
• and
• the outer roller feeding screw is in threaded connection with the outer roller feeding nut.

A counter-roller active power flexible spinning device for a large cylinder, comprising:

• a rack unit, comprising a base, inner pillars, outer pillars, and an inner roller disk, wherein the inner pillars and the outer pillars are both connected to the base, a distance between each outer pillar and a center of the base is greater than that between each inner pillar and the center of the base, and the inner roller disk is connected to one end, away from the base, of each inner pillar;
• a spindle unit, comprising a spindle platform, a spindle turntable, a first driver, second drivers, and workpiece fixtures, wherein the spindle platform is slidably connected to the inner pillars, the first driver is fixed onto the base, an output end of the first driver is in transmission connection with the spindle platform, the spindle turntable is rotatably connected to the spindle platform, the second drivers are fixed onto the spindle platform, output ends of the second drivers are in transmission connection with the spindle turntable, the workpiece fixtures are arranged on the spindle turntable, and the workpiece fixtures are able to fix a blank to be formed;
• an outer roller unit, comprising outer rollers, outer roller seats, third drivers, and fourth drivers, wherein the outer rollers are rotatably connected to the outer roller seats, the third drivers are fixed onto the outer roller seats, and output ends of the third drivers are in transmission connection with the outer rollers;
• the outer roller seats are slidingly arranged on the outer pillars;
• a reciprocating sliding direction of each outer roller seat is perpendicular to the rotation axis of the spindle turntable, and an extension line of a sliding route of each outer roller seat has an intersection point with the axis of the spindle turntable;
• the fourth drivers are fixed onto the outer pillars, and output ends of the fourth drivers are in transmission connection with the outer roller seats;
• and
• an inner roller unit, comprising inner rollers, inner roller seats, fifth drivers, and sixth drivers, wherein the inner rollers are rotatably connected to the inner roller seats, the fifth drivers are fixed onto the inner roller seats, output ends of the fifth drivers are in transmission connection with the inner rollers, and the inner rollers are in one-to-one correspondence with the outer rollers;
• the inner roller seats are slidingly arranged on the inner roller disk;
• a reciprocating sliding direction of each inner roller seat is perpendicular to the rotation axis of the spindle turntable, and an extension line of a sliding route of each inner roller seat has an intersection point with the axis of the spindle turntable;
• the sixth drivers are fixed onto the inner roller disk, and output ends of the sixth drivers are in transmission connection with the inner roller seats;
• wherein:
• an inner roller shaft is connected to each inner roller;
• the output end of each fifth driver is connected to the inner roller shaft by a spline;
• an inner roller feeding worm is connected to the output end of each sixth driver;
• one end, away from the sixth driver, of the inner roller feeding worm is rotatably connected to the inner roller disk;
• an inner roller feeding worm gear is further connected to the inner roller disk;
• the inner roller feeding worm gear is rotatably connected to the inner roller disk;
• an inner roller feeding nut is connected to the inner roller feeding worm gear;
• an inner roller feeding screw is connected to each inner roller seat;
• and
• the inner roller feeding screw is in threaded connection with the inner roller feeding nut.