Slanted-slot type precise piezoelectric stick-slip linear motor and driving method thereof
A linear motor and chute technology, applied in the field of micro-nano precision drive and positioning, can solve the problems of zigzag-like uneven motion output, difficulty in comprehensive control of friction force, limited output mechanical performance, etc., to improve mechanical output characteristics, The effect of reducing the displacement back-off rate and improving the output efficiency
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[0024] Embodiment 1: Combining Figure 1~Figure 9 This embodiment will be described. This embodiment provides a specific embodiment of a chute type precision piezoelectric stick-slip linear motor. The inclined slot type precision piezoelectric stick-slip linear motor is composed of a base 1 , a pre-pressure adjusting mechanism 2 , an inclined slot type stator 3 and a mover 4 .
[0025] The base 1 includes a base mounting hole 1-1, a pre-pressure adjusting mechanism mounting hole 1-2, a guide rail fixed mounting contact plane 1-3 and a guide rail screw mounting hole 1-4, and the base 1 can be made of an aluminum alloy material. The base mounting hole 1-1 is a countersunk hole, which can fix the base 1 and other peripheral devices. The pre-pressure adjustment mechanism mounting hole 1-2 is used for the fixation of the pre-pressure adjustment mechanism 2. The guide rail is fixed and installed in contact with The planes 1-3 and the threaded mounting holes 1-4 of the guide rail a...
Example Embodiment
[0029] Specific implementation mode 2: Combining Figure 10 The figure explains this embodiment. This embodiment provides a specific embodiment of a method for driving a precision piezoelectric stick-slip linear motor with an oblique slot. The drive method of the inclined slot type precision piezoelectric stick-slip linear motor is as follows.
[0030] The composite excitation electrical signal used in the driving method is compounded and superimposed on the sawtooth driving wave in the stage of rapid stator deformation by the friction regulating wave, the driving wave is a sawtooth wave, and the friction regulating wave is a sine wave. Specifically, the driving method can reduce the frictional resistance between the stator and the mover in the rapid deformation stage, suppress the generation of retraction motion, and optimize the output performance. The period of the sawtooth driving wave is T 1 , the excitation voltage amplitude is V 1 , the symmetry is D, and the period...
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