Wire fixing mechanism for wire transmission system

Abstract

The invention discloses a wire fixing mechanism for a wire transmission system, which comprises an outer wire fixing wheel on which a shaft hole is formed, an inner wire fixing wheel on which a shaft hole is formed and of which the bottom is provided with a smooth shaft section and a wire fixing wheel locking block, wherein a plurality of grooves are formed on the side wall of the smooth shaft section of the inner wire fixing wheel along the axial direction of the side wall; the inner and outer wire fixing wheels are provided with wire grooves; the smooth shaft section of the inner wire fixing wheel is inserted into the shaft hole of the outer wire fixing wheel and is in clearance fit with the shaft hole of the outer wire fixing wheel; the wire fixing wheel locking block is connected withthe lower part of the outer wire fixing wheel through a connecting screw; and the smooth shaft section of the inner wire fixing wheel can be clasped on a rotating shaft arranged in the shaft hole of the inner wire fixing wheel through the wire fixing wheel locking block. Due to the adoption of the mechanism, a closed loop steel wire rope can be reliably tensioned during transmission, the condition that the wire transmission system is always in a tensioning state during operation is ensured, the wire transmission system can be adjusted and calibrated during operation, and transmission accuracyis ensured.

Description

technical field [0001] The invention relates to a wire fixing mechanism, in particular to a wire fixing mechanism for a wire transmission system. Background technique [0002] In recent years, with the great progress of surgical robot and dexterous hand technology, a new transmission technology - wire transmission technology has developed rapidly. Compared with the traditional mechanical transmission system, wire transmission technology has advantages such as: it is suitable for long-distance power transmission, and the power source can be arranged far away from the execution parts to simplify the movement structure; it is easy to change the transmission direction in long-distance transmission; the transmission structure is simple, Compact, very suitable for multi-degree-of-freedom layout in a small space; insensitive to structural machining accuracy errors; no hysteresis under tension; can buffer and absorb shocks, making the movement of the end tool more stable, etc., whic...

AI Technical Summary

Problems solved by technology

However, this fixing and tensioning method requires two wire fixing blocks to hold two wire fixing wheels at the same time to achieve wire fixing, which limits the further structural simplification and scale reduction of the wire fixing mechanism.

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