摘 要
可归入“投石器”的武器技术有许多种,其中包括投石器、弩炮以及抛石机。在古代，投石器本身也是一种武器，其工作原理是利用杠杆的工作原理，当人们把石头放在投石器的装石头的位置的时候，电机带动曲柄摇杆机构运动，从而将石头投到预定的位置，过程中采用传感器感应投射点。   
本次设计在题目是投射式自动投石器的设计，通过设计它的主体部分，以及动力源和执行机构，来对该自动投石器进行结构设计和完善，此种类型的投射器将会大大地提高以往投石器的能力，给后续的投石器项目的研发和设计起到一定的参考作用。
关键词：投石器 杠杆 制造 参考

Abstract
    May be included in the "sling" weapon technology has many kinds, including catapults, trebuchets and ballista. In ancient times, the sling itself is a weapon, its working principle is using leverage work principle, when people put the stone in the cast stone stone with the position, the motor drives the crank and rocker mechanism movement, which will be a stone cast into a predetermined position, in the process of the sensor projection point.
    This design topic is projection type automatic catapult design, and by it the main part of the design, as well as the power source and the actuator to the automatic sling structure design and improve, this type of projector will greatly improve previous sling capacity, to the follow-up investment play a certain reference role in the research and design of the stone project.
Key words: cast stone lever manufacturing reference
目 录