Mechanical arm for automobile skylight

Abstract

The invention discloses a mechanical arm for an automobile skylight. The mechanical arm comprises a swing arm and a sliding block, an arc guide rail which is protruded out of the side surface of the swing arm is arranged at the lower edge of the swing arm, the arc guide rail is provided with an upwarping section, a closed section and a sinking section, the sliding bock comprises a bottom plate, two side plates and two hanging plates, the side plates are fixed on the bottom plate, the hanging plates are fixed at upper ends of the side plates, rollers are arranged on the side plates, and the arc guide rail is located between the rollers and the hanging plates. Compared with mechanical arms in prior art, the swing arm and the sliding block of the mechanical arm are directly connected with the hanging plates through the arc guide rail, and the rollers are arranged at the lower end of the arc guide rail, so that the structure of the mechanical arm is simplified, and the mechanical arm moves reliably; the movement of the sliding block is directly transmitted to the swing arm so that the positioning is accurate; and the rollers are capable of reducing friction forces and supporting the swing arm, so that the stressed structure of the swing arm is enhanced.

Description

technical field [0001] The invention relates to a mechanical arm that slides on a sunroof guide rail of an automobile to open or close a sunroof glass, and belongs to the technical field of automobile parts manufacturing. Background technique [0002] The application number is 200810044067.X, and the name is a device for skylights. It discloses a mechanical arm, which is composed of a swing arm and a slider. A chute is arranged on both sides of the swing arm, and a sliding pin is arranged in the chute. The pin is arranged on a connecting plate, and the slider and the connecting plate are rotationally connected through another sliding pin. For the mechanical arm of this structure, firstly, the guide sliding between the swing arm and the slider adopts the cooperation of the chute and the sliding pin, and secondly, the sliding pin is connected with the slider through the connecting plate, so there is still a gap between the slider and the swing arm. There are complex connectio...

AI Technical Summary

Problems solved by technology

For the mechanical arm of this structure, firstly, the guide sliding between the swing arm and the slider adopts the cooperation of the chute and the sliding pin, and secondly, the sliding pin is connected with the slider through the connecting plate, so there is still a gap between the slider and the swing arm. There are complex connection relationships, more degrees of freedom, and lower reliability

When the sunroof is driven, the response is lagging and the positioning is not accurate

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