Two-degree-of-freedom piezoelectric driving platform and design method thereof
A technology of piezoelectric drive and design method, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problem of poor positioning accuracy, reduced volume, large stroke and other problems, to achieve the effect of high positioning accuracy, easy control, good anti-overload and anti-shock ability
Pending Publication Date: 2021-11-26
HARBIN INST OF TECH
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Problems solved by technology
[0004] The invention provides a two-degree-of-freedom piezoelectric drive platform and its design method, which solves the disadvantages of traditional electromagnetic motors and hydraulic drives, as well as the current problems of poor positioning accuracy and volume reduction of parallel mechanisms. The mechanism has a small volume , high dynamic, large stroke, high precision
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[0084] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0085] A two-degree-of-freedom piezoelectric drive platform, the two-degree-of-freedom piezoelectric drive platform includes a branch chain l1, a branch chain l2 and a branch chain l3, the A1 of the branch chain l1 is fixedly connected to the fixed platform 1, and the branch chain l1 is fixedly connected to the fixed platform 1. The B1 of the chain l1 is connected to the moving platform 2 through the ball pair S1, the A2 of the branch chain l2 is co...
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The invention discloses a two-degree-of-freedom piezoelectric driving platform and a design method thereof. The two-degree-of-freedom piezoelectric driving platform comprises a branch chain l1, a branch chain l2 and a branch chain l3; the A1 position of the branch chain l1 is fixedly connected with the fixed platform (1), the B1 position of the branch chain l1 is connected with the movable platform (2) through a ball pair S1, the A2 position of the branch chain l2 is connected with the fixed platform (1) through a hooke joint U, the B2 position of the branch chain l2 is connected with the movable platform (2) through a ball pair S2, the position A3 of the branch chain 13 is connected with the fixed platform (1) through a rotating pair R, the position B3 of the branch chain 13 is connected with the movable platform (2) through a ball pair S3, and the middle of the branch chain 13 is connected with a moving pair P in a sleeved mode. The parallel mechanism overcomes the defects of a traditional electromagnetic motor and hydraulic drive, solves the problems that an existing parallel mechanism is poor in positioning precision, difficult in size reduction and the like, and has the advantages of being small in size, high in dynamic degree, large in stroke and high in precision.
Description
technical field [0001] The invention belongs to the field of piezoelectric drive technology; in particular, it relates to a two-degree-of-freedom piezoelectric drive platform and a design method thereof. Background technique [0002] In recent years, with the rapid development of precision ultra-precision machining, precision optics, life science and technology, microelectronic devices, precision measurement, intelligent devices and other fields, driving devices that can achieve large-scale and nano-level positioning accuracy have become constraints in the above technical fields. The bottleneck of further development, and has received extensive attention and research. Although the traditional electromagnetic drive technology is very mature, it has problems such as insufficient positioning accuracy, slow response speed and serious electromagnetic interference, so the new piezoelectric drive technology has been developed rapidly. Piezoelectric drive technology mainly uses the...
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Login to View More IPC IPC(8): H02N2/04H02N2/06
CPCH02N2/043H02N2/06
Inventor 王绍凯孙连伟史维佳赵勃谭久彬
Owner HARBIN INST OF TECH