Basic principles of fixture design
1, fixture design according to the needs of mass size. For example: box small batch scribing and drilling, free clamping; batch with jig tooling and processing; mass design plane, a permanent fixture; especially for big batch design assembly line plane, consider the unity of the locating datum, clamping consistency: annual production of large batch design of automatic production line, in addition to consider the unity of the locating datum, clamping the consistency of outside. Also consider, with the design of the fixture, the design of the workpiece conveying chain, the design of the manipulator, the design of automatic measurement, and the design of auto repair.
2, design to meet the needs of machine tools. For example, milling machine to know what is the milling machine, what is the inverse milling and their stress situation.
3, to meet the needs of six degrees of freedom.
4, reduce the need for the workpiece variant.
5, adapt to the needs of the workpiece shape change.
6, to consider in the processing of cutting force to offset each other, to reduce the weight and clamping force.
7, the design of the work device to human.
8, work design to consider the processing habits of workers.
9, the design of parts and components to the best possible unity, easy for the manufacture and maintenance of tooling.
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