【正文】 l use is more mon. b) In the assembly operations are widely used in the electronics industry, it can be used to assemble printed circuit boards, in the machinery industry. It can be used to assemble parts and ponents. c) The working conditions may be poor, monotonous, repetitive easy to subfatigue working 濟南大學畢業(yè)設(shè)計外文資料翻譯 4 environment to replace human labor. d) May be in dangerous situations, such as military goods handling, dangerous goods and hazardous material removal and so on. e) Universe and ocean development. f) Military engineering and biomedical research and testing. Help mechanical hand: all know as the balancer, balance suspended, laborsaving spreader, manual Transfer machine is a kind of weightlessness of manual load system, a novel, timesaving technology for material handling operations booster equipment, belonging to kinds of nonstandard design of series products. Customer applications needs, creating customized cases. Manual operation of a simulation of the automatic machinery, it can be a fixed program draws, handling objections or perform household tools to acplish certain specific actions. Application of machine hand can replace the people engaged in monotonous, repetitive or heavy manual labor, the mechanization and automation of production, instead of people in hazardous environments manual operation, improving working conditions and ensure personal safely. The late 20th century,40, the United Stated atomic energy experiment, the first use of radioactive material handling machine hand, human machine hand in a safe room to manipulator and gradually extended to industrial production sector, for the temperatures, polluted areas, and loading and unloading to take place the work piece material, but also as an auxiliary device in automatic machine tools, machine tools, automatic production lines and processing center applications, the pletion of the upper and lower material. Machine hand body mainly by the hand and sport institutions. Agencies with the use of hands and operation of objects of different occasions, often there are clamping, support and adsorption type of care. Movement ans are generally hydraulic pneumatic, electrical device drivers. Manipulator can be achieved indecently retractable, rotation and lifting movements, generally 2 to 3 degrees of freedom. Machine hands are widely used in metallurgical industry, machinery manufacture, light industry and atomic energy sectors. It can replace human labor in order to achieve the production of heavy mechanization and automation that can operate in hazardous environment to protect the personal safety, which is widely used in machinery manufacturing, metallurgy, electronics, light industry and nuclear power sectors. Mechanical hand tools or other equipment monly used for additional devices, such as the automatic machines or automatic production line handling and transmission of the work piece, the replacement of cutting tools in machining centers ,etc. generally do not have a separate control device. Some operating devices require direct manipulation by humans such as the atomic energy sector performs household hazardous material used in the masterslave manipulator is also often referred to as mechanical hand. Manipulator mainly by hand and sport institutions. Task of hand is holding the work piece (or tool) ponents, according to grasping objects by shape, size, weight, material and operational requirements of a variety of structural forms, such as clamp type, type and adsorption of a variety of hand rotation (swing), mobile or pound movements to achieve the required action, to change the location of objects by grasping and posture. Machine hand is the automated production of a kind used in the process of crawling and moving piece features automatic device, which is mechanized and automated production process developed a new type of device. In recently years, as electronic technology, especially puter extensive use of machine hand development and product of hightech fields has bee a rapidly developed a new technology, which further promoted the development of machine hand