The graduation project is to enable us to study the integrated use of mechanical

manufacturing processes in the basic theory, combined with the production of practical

knowledge learned in practice, independent analysis and resolution of process issues,

has designed a medium-complexity parts of the process specification capabilities fixture

design and application of basic

principles and put laws and the development fixture design, the ability to complete the

fixture structural design, but also are familiar with and use of relevant manuals, charts

and other technical information and preparation of technical documents and practice for

basic skills.

This design is a moderately complex part of the special fixture design. The main

processing components and pore surface is flat. In general, to ensure the machining

accuracy than the flat hole machining accuracy to ensure easy. Therefore, this design

follows the principles of the hole after the first plane. And a clear hole and plane

processing is divided into roughing and finishing stages to ensure the hole machining

accuracy. The benchmark chosen to leverage cylindrical surface as a rough benchmark,

in order to hole and its lower surface as a precision reference. Processing bottom out

first, and then as a locating datum, in order to bottom as a fine reference processing

hole. The whole process selected portfolio of machine tools. Exclusive use areas in the

jig fixture. Taking into account the structural dimensions of simple parts, clamping means

to use more manual clamping, clamping a simple, mechanical design simple, and can

meet the design requirements.

Key words ：

technology, fixtures , design

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