Telescopic arm

Abstract

The invention relates to a main structure part on a manipulator. The telescopic arm comprises an outer arm and an inner arm, wherein an upper sliding block and a lower sliding block are arranged between the outer arm and the inner arm; the upper sliding block comprises an mounting seat, a columnar sliding block, a screw and a locknut; the bottom of the mounting seat is arranged on the outer surface of the inner arm; the columnar sliding block is sleeved with the mounting seat; the mounting seat is further fixed onto the inner surface of the outer arm through the screw. By virtue of the improvement on the design of the sliding blocks, the telescopic arm conquers inconvenience in operation of the original structure when being added with an adjustable pad, improves defect of difficulty in adjusting clearance, simplifies the clearance adjusting procedure, easily controls the clearance fit precision, saves assembly time, and improves the fixture efficiency.

Description

technical field [0001] The present invention relates to a main structural component on the manipulator. Background technique [0002] The telescopic arm is the main structural component of the multifunctional manipulator, and the extension and retraction of the telescopic arm are realized through the expansion and contraction of the hydraulic cylinder. In order to ensure the stability of the relative movement of the inner and outer arms, a high clearance fit accuracy must be ensured between the upper slider and the inner arm, and the clearance is generally required to be 0.5-1 mm. For the telescopic arm, the upper and lower sliders bear the positive pressure (larger force) generated by the bending moment, and the left and right sliders only play a guiding role. [0003] The commonly used built-in flat slider is to install the slider on the inner surface of the outer arm, and the thin nuts are respectively injected into the lower slider and the upper slider (the material of ...

AI Technical Summary

Problems solved by technology

When using the built-in flat slider structure, the gap adjustment accuracy is not easy to control, and the error is relatively large

In addition, since the slider and the inner arm often have line contact during the stretching process of the telescopic arm, the slider is easy to wear

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