The rolling frame of the rolling processing equipment is mounted on the base, the hydraulic cylinder is mounted on the frame frame, and the roller shaft sliding seat is connected with the piston rod of the hydraulic cylinder, and can be accompanied by the hydraulic cylinder under the action of hydraulic oil. The piston moves left and right. The center frame is installed in the middle of the two roller shaft slides on the workbench to support the mandrel for mounting the workpiece. The roller shaft and the reducer shaft are connected by a universal telescopic drive shaft. The roller shaft slide can be moved while the roller shaft rotates, and the guide rail is arranged between the roller shaft slide and the worktable to ensure the accurate movement of the roller shaft slide; the hydraulic pump station uses a small flow of liquid to the large diameter hydraulic cylinder. Medium supply, so that the piston rod of the hydraulic cylinder produces a slow moving speed to achieve radial slow feed during rolling. The roller is mounted on the roller shaft of the roller shaft seat, and the roller shaft rotates and the roller shaft slide moves. To achieve the required rotation and movement movements.
Working principle When the gear is rolled, the tooth blank is mounted on the mandrel with the top hole, and then the mandrel is mounted on the center frame, the machine tool is started, the electromagnetic clutch is turned on, and the motor drives the roller to rotate through the reduction box, the roller At the same time as the hydraulic pump station starts to work, the Boshan water pump manufacturer presses the electromagnetic reversing valve button to switch on the oil circuit. The left and right hydraulic cylinders simultaneously push the roller shaft slide to move the roller to the tooth blank, due to the tooth blank. The upper radial pressure is large, causing indentation on the surface of the tooth blank, and at the same time, due to the rotation of the roller, a non-sliding rolling is formed between the tooth blank and the roller, and the tooth blank is pressed out of the tooth shape and meshed with the roller without gap. When the roller shaft slide moves to a certain position and contacts the limit block, the roller shaft slide cannot continue to move, and the hydraulic pressure in the hydraulic circuit is increased due to the displacement of the piston being restricted. When the hydraulic pressure reaches a certain value, the system The pressure relay acts, the electromagnetic clutch is disconnected, the roller stops rotating, the electromagnetic reversing valve in the oil circuit is reversed, the piston rod changes the direction of motion, and the roller shaft slide drives the roller to retreat when the roller
Application and effect replacement roller This method can be used for machining of cylindrical spur gears, cylindrical helical gears, spline shafts, helical spline shafts, etc. with medium and small modulus. A factory uses this technology to process the modulus m=2, the number of teeth z=20, the planetary gear in the gear of 20CrMo, the machining time of each piece is less than 20s, the precision of the gear can be up to 7th, the tooth surface roughness It is lower than Ra0.8Lm and can be used after nitriding.
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