Sectional type robot shaft structure

Abstract

The invention discloses a sectional type robot shaft structure, which comprises a sixth solid shaft piece, wherein the sixth solid shaft piece comprises a first spline shaft section and a second spline shaft section connected with the first spline shaft section through an inner spline shaft; a fifth hollow shaft piece which comprises a first J5 shaft section, a J5 transition shaft fixedly connected with the first J5 shaft section, and a J5 extension rod fixedly connected with the J5 transition shaft; a fourth hollow shaft piece which comprises a first J4 shaft section and a J4 shaft extension bar which is fixedly connected with the first J4 shaft section through a third screw; and a small arm casting which comprises a first small arm rod and a small arm extension rod fixedly connected with the first small arm rod. According to the invention, vibration and noise of the robot caused by poor processing are avoided, models with different arm spans and different effective loads of the robot are easily obtained, the design time is greatly saved, and modular design of the robot is realized.

Description

technical field [0001] The invention relates to the technical field of industrial robots, in particular to a segmented robot shaft structure. Background technique [0002] In the prior art, when designing a robot with a long arm span, due to the long slender solid shaft and the slender hollow shaft (generally longer than 800 mm, some even reaching more than 2000 mm), and the shaft diameter is small or the wall is thinner ), so turning and grinding are more difficult, and it is difficult to guarantee the shape and position tolerance of the slender shaft even after it is processed, and the transportation problem between processes is also more difficult. If you are not careful, the slender shaft may be bent and assembled. The robot will also produce jitter, noise and other defects. [0003] The slender shaft is generally processed with bar. Regardless of the material of the bar, it is difficult to process if it is too long. It is difficult to easily vibrate the knife during pr...

AI Technical Summary

Problems solved by technology

The design is longer, which is also difficult to process, and it is easy to vibrate the tool, disturb the deformation during processing, and it is difficult to solve the problem fundamentally when using the tool rest, which makes it difficult to guarantee the shape and position tolerance of the shaft, transportation between processes, storage, and final assembly. tougher

Heat treatment such as quenching and tempering during processing between processes is also relatively easy to cause defects such as deformation

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