外文翻譯--工件在夾具中的夾緊-文庫(kù)吧資料
2025-08-15 08:23本頁(yè)面
【正文】 in the role of spring circle card folder under收攏claw to release the work piece. Centering clamping bodies such pact structure, usually ranging from precision centering ~ , pared with the hole for the work piece surface for positioning the base of the semifinishing processes. 4. Clipon springcentering clamping cylinder body This centering clamping sleeve body type monly used in the installation of the work piece. Elastic centering clamping simple structure, small size, easy to operate quickly, so a wide range of applications. Centering accuracy of its stability in between ~ . In addition to the above described centering clamping bodies, are monly used diaphragm chuck body, corrugated centering clamping sets of institutions, as well as fluid bodies, such as plastic clamping。 14 Fourth, institutions centering clamping When the work piece is processed by the central element of surface (axis, the center plane, etc.) for the base process, in order to enable the base to reduce the positioning error of coincidence, to be used centering clamping body. Centering centering clamping body and clamping the two functions, such as horizontal selfcentering threejaw lathe chuck is a classic example of the most monly used. Centering centering clamping the role of institutions according to their principle, there are two types, one is relying on the transmission mechanism so that mobile speed centering clamping device in order to achieve centering clamping, such as spiral, leveraged, institutions such as wedge 。 2e / D When f = hours, e / D 179。. Wedge clamp is simple in structure, than by large, selflocking features such as performance, it is widely available. (B) Helical Clamp Used as intermediate screw transmission ponents are collectively referred to as the clamping screw clamping body organs. Because of its simple structure, reliable clamping, mon good, and as a result of the small helix angle, spiral of selflocking clamping body good, clamping force and the clamping itinerary are larger fixture on manual with the most a clamping body. 1. Simple screw clamp body The simplest spiral as a result of the direct use of clamping bodies pressed work piece screw head, so easy to damage the surface of the work piece under pressure, or driven rotating work piece. So often in the head with swinging Press. Press with the work piece as a result of friction between the Press and the torque is greater than the friction between the screw torque, screw together with the Press will not rotate. Clamping action slow, timeconsuming loading and unloading the work piece is a single spiral Another drawback of the Clamp. To overe this shorting, the rapid clamping bodies can be. 2. Clamp screw plate Institutions in the clamping, the use of spiral plate is very mon, mon structure of the spiral structure of a typical plate size has been standardized, the designer can refer to the relevant national standards and fixture design manual design. (C) Eccentric Clamp With eccentric pieces, directly or indirectly, the work piece clamping body, known as the eccentric clamping body. There are two types of eccentric pieces, that is, and the curve of eccentricity eccentric circle, which, due to a round eccentric structure is simple and easy to manufacture and is widely used. Eccentric clamping processing is easy to operate, rapid clamp, the disadvantage of clamping force and clamping trip are small. Not generally used in cutti
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