Servo motor connecting mode

Abstract

The invention discloses a servo motor connecting mode, which belongs to the technical field of a large-scale closed type pressing machine and adopts a crankshaft, a hollow shaft servo motor, an expansion connecting sleeve and an upper transverse beam, wherein the hollow shaft servo motor is directly and fixedly connected with the crankshaft through the expansion connecting sleeve, an inner tooth sleeve seat and an outer tooth motor seat are also adopted, the outer tooth motor seat is in inner engagement connection with the inner tooth sleeve seat, and the inner tooth sleeve seat is fixedly arranged on the upper transverse beam. The hollow shaft servo motor can realize the position limitation in the circumferential direction, so the torque is provided for the crankshaft, in addition, the outer tooth top of the outer tooth motor seat is made into an ellipsoid surface, in addition, inner and outer teeth have the proper top gap and the side gap, the axial and radial displacement and the angular displacement of the outer tooth motor seat can be allowed, the servo motor and the outer tooth motor seat of the servo motor realize the flexible connection with the inner tooth sleeve seat, and the micro torsion bending deformation of the crankshaft can be automatically adapted at any time in the punching process, so the reliability and the punching precision of the servo motor are improved, the service life of the servo motor is prolonged, and the production cost is reduced.

Description

technical field [0001] The invention discloses a connection mode of a servo motor and belongs to the technical field of large closed presses. Background technique [0002] At present, the connection methods of existing servo motors, such as figure 1 with figure 2 As shown, the hollow shaft servo motor 3 is fixed on the upper beam 5 through the motor base 1, and the expansion coupling sleeve 4 realizes the solid connection between the crankshaft 2 and the hollow shaft servo motor 3, thereby driving the crankshaft 2 to perform high-speed rotary motion, but for large pressure As far as the servo motor is concerned, during the stamping operation of large tonnage, a small amount of warping and vibration will occur at the end of the crankshaft, which is restricted by the existing structure, thereby reducing the reliability and stamping accuracy of the servo motor. Contents of the invention [0003] Aiming at the problems existing in the above-mentioned prior art, the present ...

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Problems solved by technology

[0002] At present, the connection methods of existing servo motors, such as figure 1 and figure 2 As shown, the hollow shaft servo motor 3 is fixed on the upper beam 5 through the motor base 1, and the expansion coupling sleeve 4 realizes the solid connection between the crankshaft 2 and the hollow shaft servo motor 3, thereby driving the crankshaft 2 to perform high-speed rotary motion, but for large pressure As far as the machine is concerned, during the stamping work of large tonnage, a small amount of warping and vibration will occur at the end of the crankshaft, which is restricted by the existing structure, thereby reducing the reliability and stamping accuracy of the servo motor

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