When it comes to the construction of aircraft, the tried and tested method when it comes to securing the jigs and fixtures are clamping pins. Clamping pins have become the norm in aircraft construction due to the fact that clamping pins allow for large parts to be loaded and unloaded fairly quickly and easily so one would understand why it would be the most viable option. However, clamping pins are not perfect as they come with certain design flaws. Because of this, there has been an initiative to find ways to make improvements to it through Aerospace Fabrication.
As expected, in the aerospace industry, one of the most important things is accuracy. Other critically important things in the industry are proper time management and being able to deal with the constraints and constantly find new solutions. Jig plates that are removable are common in aircraft construction due to the fact that their usage makes it easy to replicate the process when moving between different aircraft structures. In addition, when a part is loaded onto the jig bed itself securing and clamping it into position is fairly easy and quick.
The design of the clamping pin isn’t something that is new to the aerospace industry. Usually a small leaf spring is utilized so that the pin can be held in place. The clamping pin will be held in place as the clamp is taken out from the jig bed resulting in the tightening of the spring. However, its design in Aerospace Fabrication still comes with flaws. The leaf spring usually comes loose as the pin is taken from the jig plate and in cases where the facility is quite busy, finding a lost pin can be very difficult requiring the need for a new one.
However, with discussions among aerospace fabrication companies, a design has been made to address the problems with the system and improve it overall. One of the improvements made to the leaf spring is the “self-retaining” property which allows it to be used again and again and this comes without the risk of it being accidentally dislodged and become lost resulting in the reduction of waste in the assembly and further improving the efficiency and productivity of the overall fabrication system.
One of the points that have also been improved in its design is the flexibility. This was accomplished by making the collar on the pin mobile along its delivery. Because of this the user can easily make alterations to the length of the shaft so that one can make it fit depending on the depth of the plate being used. Once the user has found the right length to use he can then weld the collar into position or he can cross drill and pin the shaft.
Thanks to this improved design in Aerospace Fabrication, people have noticed the improvements with the system and how great for use clamping pins are in securing things when constructing aircrafts. With that improvement came improved flexibility as well as the lengthening of its lifespan.