Multi-station quick positioning device and method applicable to aviation sheet metal parts

Abstract

The invention discloses a multi-station quick positioning device and method applicable to aviation sheet metal parts. The device comprises a general vacuum platform arranged on a machine tool workbench. An aspirating chamber is arranged on a bottom face part of a body of the general vacuum platform, aspirating holes are formed in the aspirating chamber, sealing grooves are formed in the periphery of the bottom face, and after sealing strips are installed in the sealing grooves, the general vacuum platform is fixedly assembled with a base sealing plate; and the surface of the body of the general vacuum platform is partitioned into boxes by sealing grooves, a steel bush is installed in the center of each box, and sealing strips are installed in the sealing grooves. According to the multi-station quick positioning device and method, the maximum performance of a machine tool is brought into full play on the premise that equipment and a tool run safely, the time for process preparing and part installing and replacing is shortened, a part of aviation parts can be machined in an assembly line manner through the vacuum platform, operation standards are unified, the technical process is unified, machining information is detected digitally, human operation errors are reduced, the quality stability is improved, and meanwhile, modernized auxiliary tools are used for improving the machining efficiency.

Description

technical field [0001] The invention relates to a multi-station rapid positioning device and method suitable for aviation sheet metal parts. Background technique [0002] For the current processing of aerospace structural parts, due to the characteristics of multi-variety, single-piece and small-batch processing, the preparation of parts clamping leads to a high proportion of machine downtime. [0003] Aviation parts are single and complex in structure. The traditional processing method needs to make pin holes for each part on the aluminum backing plate with a thickness greater than 50mm for positioning. After determining the installation position of the parts, punch and tap according to the pin holes to lock the parts (structure It takes 4-8 hours for drilling and tapping of simple parts, 10-16 hours for larger and more complex parts), if the thread is damaged in the middle of tapping, it is necessary to adjust the position of the parts and then re-drill and tap, special pa...

AI Technical Summary

Problems solved by technology

The error of artificially determining the origin of the machining often leads to the error of receiving the knife of the double-sided machined parts, which causes the fitter to manually repair the workload too much

Seriously directly lead to the scrapping of parts

[0006] After confirming the machining origin, due to the complex structure of the aviation parts, there are many types of machining tools and customized tools, and the program tools cannot be unified and regular. Each program requires the operator to manually install the tools, which is convenient for measuring tools before installation. The waiting time for the shutdown is shortened, and parts scrapped due to human measurement errors and wrong use of tools also occur from time to time

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