How to use the fixture reasonably to tap the potential of the equipment
Experience shows that in order to improve the efficiency of CNC machine tool processing, only “choose the right” CNC machine tool fixture is not enough, but also must be “good” CNC machine tool fixture on the effort.
The following three commonly used methods: the
Multi-station method
Multi-station method of the basic principle: through a clamping multiple workpieces, to shorten the unit clamping time, to extend the effective cutting time of the tool. Multi-station fixture that has more than one positioning clamping position fixture.
With the development of CNC machine tools and the need to improve the productivity of users, the application of multi-station fixtures is now more and more. In the hydraulic/pneumatic fixture, combination fixture, electro-permanent magnetic fixture and precision combination of the structure design of the flat vise multi-station design is more and more common.
Group use method
The same several fixtures can be used on the same working table to achieve the purpose of “multi-station” clamping. This method involves the fixture should generally be “standardized design, high-precision manufacturing”, otherwise it is difficult to achieve the requirements of CNC machine tool processes.
Group use method can make full use of CNC machine tool stroke, facilitate the machine tool drive parts of balanced wear; at the same time, the relevant fixture can be used independently to achieve multi-piece clamping, and can be used jointly to achieve large workpiece clamping.
Local quick-change method
Local quick change method is through the CNC machine tool fixture of the local (positioning elements, clamping elements, tooling components and guide elements) for rapid replacement, to quickly change the fixture function or use of the purpose. For example: quick-change combination of flat jaws, can be quickly replaced jaws to achieve a change in clamping function, such as from clamping square material to clamping bar material; can also be quickly replaced clamping elements to achieve a change in clamping mode, such as from manual clamping to hydraulic clamping. The local quick change method significantly reduces the time for changing and adjusting the fixture, and has more obvious advantages in small batch production.