适用夹持搬运的窗机包装结构研究应用

目的窗式空调器产品包装选择环保型的包装材料,采用优化内包装结构方案使设计出的整套产品包装尺寸符合装柜量最大化要求,并通过夹持力测试,以适用于机械手搬运、装卸作业。方法新设计的窗式空调不仅在材料及结构上满足常规的运输环境,通过常规的脚踩、跌落、堆码、运输等产品包装测试,还要验证它的可靠性,并能满足机械手的搬运方式,通过夹持测试。结果此种环保包装的结构设计不仅节省能源、资源,且包装材料用量少、可循环回收利用,并能通过包装各种测试,特别是夹持测试能够适用于机械自动化搬运周转窗式的空调产品。结论产品包装结构不能只重视包装设计,更不能缺少包装设计,采用绿色包装材料、新结构、新工艺的结合达到保护产品的目的。

薄壁圆管合金试件弹塑性应变测试方法比较

为高效、准确地测量薄壁圆筒试件应变,研究多轴应力应变路径,比较应变片测试和夹持式应变计测试两种应变测试方法。设计制作薄壁圆筒试件,推导将测试结果转换为拉伸应变和剪切应变的计算公式,在MTS试验台上进行测试,对拉伸、扭转、拉扭3种工况的应变测试结果进行比较。研究结果表明:两种方法都能正确测试应变,二者成线性相关关系,误差在5%以内;夹持式应变测试方法具有可重复使用、效率高的特点,用于测试材料的弹塑性应变具有明显的优势。

Experimental Results Regarding an Anthropomorphic Original Gripper with Two-Finger Tests during Grasping Objects with Varied Shapes

The paper presents theoretical and experimental results on an original anthropomorphic gripping concept. Compared to the existing anthropomorphic grippers, this gripper is very simple, yet it has the advantage of high performance in terms of gripping possibilities and a very low manufacturing cost. Source of inspiration was the human hand, which is able to catch objects by only using two fingers. The analyzed anthropomorphic gripper has two fingers, with two phalanxes each, and is based on a new mechanism with articulated bars. The kinematic analysis performed on the gripping mechanism reveals the optimal displacement in the translational coupling, which was experimentally validated. The gripping possibilities were increased by attaching clamping jaws to each phalanx. The clamping jaws have been attached by means of spherical couplings, thus offering the possibility to catch objects with any type of surface. By carrying out gripping tests with different objects, we underline the importance of a safe use of the two-fingered anthropomorphic grippers in different applications. Due to the innovative mechanical structure, the gripper can insure the minimal gripping conditions, whilst the complexity of the objects that can be gripped make it suitable for the use in robots.