US 12,350,823 B2
Transmission device with multiple degrees of freedom and robot
Chi-Tao Kuan, Santa Clara, CA (US); Hao Jiang, Santa Clara, CA (US); and Shuhan Li, Santa Clara, CA (US)
Assigned to SHANGHAI FLEXIV ROBOTICS TECHNOLOGY CO., LTD., Shanghai (CN); and FLEXIV LTD., Grand Cayman (KY)
Appl. No. 18/257,374
Filed by SHANGHAI FLEXIV ROBOTICS TECHNOLOGY CO., LTD., Shanghai (CN); and FLEXIV LTD., Grand Cayman (KY)
PCT Filed Sep. 1, 2022, PCT No. PCT/CN2022/116489
§ 371(c)(1), (2) Date Jun. 14, 2023,
PCT Pub. No. WO2024/045127, PCT Pub. Date Mar. 7, 2024.
Prior Publication US 2024/0391089 A1, Nov. 28, 2024
Int. Cl. B25J 3/02 (2006.01); B25J 9/00 (2006.01); B25J 9/10 (2006.01)
CPC B25J 3/02 (2013.01) [B25J 9/0048 (2013.01); B25J 9/102 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A transmission device with multiple degrees of freedom, the transmission device comprising:
a first platform, a second platform, a fixing platform provided between the first platform and the second platform, a plurality of first branch chains, a plurality of second branch chains, and a plurality of transmission assemblies;
wherein the plurality of first branch chains are arranged in parallel between the first platform and the fixing platform; the plurality of first branch chains, the first platform, and the fixing platform constitute a first multiple degrees of freedom parallel mechanism;
wherein the plurality of second branch chains are arranged in parallel between the second platform and the fixing platform; the plurality of second branch chains, the second platform, and the fixing platform constitute a second multiple degrees of freedom parallel mechanism, wherein a structure of the second branch chains is similar to a structure of the first branch chains, and a size of the second branch chains is enlarged or reduced in proportion to a size of the first branch chains;
wherein the plurality of transmission assemblies are coupled between the plurality of first branch chains and the plurality of second branch chains and configured to couple an output end of the first multiple degrees of freedom parallel mechanism to an input end of the second multiple degrees of freedom parallel mechanism.