A steel belt drive swing head structure

Abstract

The invention discloses a steel belt transmission swing head structure, which adopts the combination of the A pendulum structure and the B pendulum structure, adopts the direct drive of the torque motor as the driving mode, adopts the combination of the pulley and the guide belt as the transmission mode, and adopts the arc guide rail and the rotating shaft Supporting and guiding the weight of the swing head is greatly reduced, and the speed and acceleration of the swing head are increased, which in turn can achieve more efficient cutting than the traditional mechanical AB swing head. By adjusting the tension of the two guide belts, the guide can be With two-way tensile pretension, the swing movement of the guide belt around the swing center O is completed, the swing head swings clockwise or counterclockwise, and the two guide belts are in a tight state, restraining the fan-shaped plates connected by the steel belt, eliminating The reverse clearance of the entire swing head; the two drive wheels of the entire swing head structure are directly driven by torque motors, and the rotor of the motor is rigidly coupled with the drive wheels, forming a transmission mechanism with no backlash, which simplifies the structure of the swing head and greatly reduces The weight of the swinging head.

Description

technical field [0001] The invention belongs to the field of high-precision, high-speed, high-efficiency five-axis linkage processing, and specifically relates to a steel belt transmission swing head structure. Background technique [0002] The five-axis linkage machining center can be used to process thin-walled complex parts such as titanium alloy and aluminum alloy. It is widely used in the field of aerospace parts manufacturing. As an important functional component of the five-axis linkage machining center, the AB pendulum is the focus of research and development. and difficult. [0003] In order to meet the requirements of cutting difficult-to-machine materials such as titanium alloys, higher torque is generally required. The traditional AB swing head uses an ordinary servo motor to drive the rack and pinion, and then drives through the worm gear to achieve torque amplification. However, the increase of the transmission link increases the overall weight of the AB swin...

AI Technical Summary

Problems solved by technology

However, the increase of the transmission link increases the overall weight of the AB swing head, which leads to the inability of the rotation speed of the AB swing head to reach a higher value, resulting in the problem of low processing efficiency.

At the same time, due to the large volume and inertia of the traditional swing head, the mechanical wear increases and the machining accuracy decreases.

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