一种蜗杆驱动机械手爪

Worm-driven mechanical gripper

Abstract

The invention discloses a worm-driven mechanical gripper. A driving module can drive a worm to rotate, a worm gear can be made to rotate in the worm rotating process, and then the degree of an angle formed by taking a first rotation shaft as a vertex point and taking a second rotation shaft and a fourth rotation shaft as end points is changed; a clamping surface can be displaced in the horizontal direction according to the parallelogram principle, and then clamping is achieved. According to the worm-driven mechanical gripper, driving components adopt simple connecting rod structures, therefore, the reliability is very high, and the life is very long; in addition, transmission of the worm gear and the worm is very precise, and therefore the worm-driven mechanical gripper can achieve precise gripping; meanwhile, transmission of the worm gear and the worm can achieve the effects of reducing the speed and increasing the torque and the clamping force. Therefore, the problem that the size and the mass are large due to the fact that a speed reducing mechanism needs to be additionally arranged on a mechanical gripper in the prior art is avoided. The worm-driven mechanical gripper is applied to the field of mechanical grippers.
本发明公开了一种蜗杆驱动机械手爪,驱动模块可驱动蜗杆进行转动,在蜗杆转动的过程中会让蜗轮转动,从而改变以第一转轴为顶点、第二转轴和第四转轴为端点所形成的角的角度,根据平行四边形的原理,夹紧面会发生水平方向上的位移,从而实现夹紧。由于本发明的驱动构件均采用简单的连杆结构,所以其可靠性、寿命非常的高,而蜗轮蜗杆的传动非常的精密,使得本发明可以实现精确的夹取,同时蜗轮蜗杆的传动能起到减速、增大扭矩、夹紧力的作用。这就避免了现有技术的机械手爪要额外设置减速机构导致体积大、质量大的问题。本发明用于机械手爪。

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