High-accuracy hole forming device for aircraft wall panel and a method of high-accuracy hole forming device

Abstract

The invention provides a high-accuracy hole forming device for an aircraft wall panel and a method of the high-accuracy hole forming device. A main shaft module is used for feeding an electric main shaft along a hole forming axis; a feeding module is used for guaranteeing movement of the main shaft module and a pressure pin normal leveling module in the hole forming axis and providing pressure for a pressure pin to be abutted against the wall panel; the pressure pin normal leveling module is used for guaranteeing the stability of the wall panel in the hole forming process; the feeding module is matched with a grating scale module for work to realize accurate control over the hole forming feeding displacement; a visual alignment module and a control system form a closed loop feedback loop; positional deviation error of a projection point of a hole forming main shaft on the wall panel surface and an actual hole forming point can be measured and fed back in real time; and correction is performed through the closed loop system to guarantee that the positional accuracy of a formed hole is within a tolerance requirement range. According to the high-accuracy hole forming device, the positional accuracy, the surface roughness and the dimensional accuracy of the hole can meet the design requirements well; and meanwhile, slanting holes and oblique holes are not formed in the hole forming process, the temperature of a hole forming region is kept at a normal working temperature and the chip removal is normal.

Description

technical field

[0001] The invention belongs to the field of automatic hole making of aircraft wall panels, in particular to an automatic hole making system suitable for high-precision drilling and countersinking of large aircraft wall panels. Background technique

[0002] Wall panel automatic hole making technology is a technology based on product digitization and automation, and it is also one of the most advanced processing technologies in aviation manufacturing. With the help of high rigidity and pre-structure design and advanced automatic control technology, manufacturing technology can be Control machining errors within a tiny range while enabling precision manufacturing or assembly.

[0003] At present, the automated hole-making system for wall panels has been gradually applied in aircraft, automobile and other manufacturing fields. Patent CN101417348A invented a drilling end effector, the end effector is driven by a motor and driven by a synchronous pulley, which ca...

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