Abstract
This article mainly introduces the drill hole jig underwriter development's present situation, the tendency, and unified the jig which involved to introduce the axis class become the group drill hole jig's principle, the influence working accuracy factor and in the reduced error's method, the jig process of manufacture precision, has analyzed the home and the overseas developed country becomes the group technique of manufacture the present situation and the trend of development, introduced simply the drill hole jig's principle of work and the composition, take the underwriter as the core ideas, and so on carried on the classification according to the structure shape and the function to the product components, was similar the shape, the size was close, the processing essential factor and installed the way same components to select, forms becoming which neededThe group working procedure group, according to becomes the group craft overall plan to consider that jig's design proposal carries on the jig structural design, finally to Cheng who designs Zu the jig carries on the position error to analyze. Finally gives jig's engineering drawing and the three dimensional constructional drawing. This design will be engaged in the group jig's design to the jig design and the underwriter exploration for the present to lay the foundation, with experience which may use for reference.
Keywords：Drills a hole the jig Underwriter Axis class components Clamp
