Harmonic reducer capable of being directly connected with a mechanical arm

Abstract

The invention relates to a harmonic reducer, and belongs to the field of manufacturing of mechanical arms. The harmonic reducer is provided, an output end is connected with joints at high precision, the joints are assembled conveniently, a rear end cap is arranged at the rear end of the harmonic reducer on a first mechanical arm joint, a plurality of rear end cap connecting screw holes which are distributed in the peripheral direction are formed in the rear end cap, and a step is further arranged at an end of the rear end cap; and a second joint fixing hole which corresponds to a connecting screw hole is formed in a second joint, a second joint fixing screw penetrates through the second joint fixing hole and is fixed in a connecting screw hole, and therefore, the rear end cap is connectedwith the second joint. The original traditional speed reducer flange plate connecting method is abandoned, thus, the harmonic reducer mechanism is compact and simple, form and location tolerance is relieved, an effect of improving the product connecting precision is achieved, and the production cost is reduced on the basis of reduction of accessories.

Description

technical field [0001] The application relates to a harmonic reducer that can be directly connected to a mechanical arm, and belongs to the field of mechanical arm manufacturing. Background technique [0002] The national invention patent (CN204604352) discloses a mechanical arm joint, wherein the shaft of the motor is hollow, the inner end of the output shaft is fixed to the output end of the harmonic reducer, and the outer end of the output shaft passes through the motor shaft At the outer end, a motor grating is fixed at the outer end of the motor shaft, an output shaft grating is fixed at the outer end of the output shaft, an encoder is fixed inside the housing, and the output shaft grating and the motor grating are respectively located on the upper and lower sides of the encoder. The upper and lower sides of the encoder are respectively equipped with photoelectric switches that cooperate with the output shaft grating and the motor grating. This invention has the advanta...

AI Technical Summary

Problems solved by technology

In this assembly process, because the circumferential direction of the screw is released on the outside of the rigid wheel, its rotation angle is very limited, resulting in time-consuming tightening, resulting in low assembly efficiency

In addition, such a connection and assembly process will reduce the precision of the connection between the reducer flange and the connection flange and reduce the strength, resulting in a decrease in the overall quality of the mechanical arm.

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