Functional sequence of the piercing nuts
All tool components are retrieved from a standard modular system. In this way, project-related punching heads and dies can be matched within very short time. There are different systems for feeding the nuts. The best possible solution can be configured for every part or every customer.
The simple but intelligent design of all system components ensures reliable function at all stages of the process. This system is used in innumerable volume production applications in the automotive, household appliances and electrical industries. In some applications, the automatic punches install up to 600 nuts a minute or up to 30 nuts in one stroke in large parts processed on press lines.
Critical to the success of a project is the early and close cooperation among all involved parties. The advantages of the PIAS® system should be considered already at the design and development stages of a project.
- The punch nut is held in the ram. The diverter is locked. The head moves down on the plate part.
- The tip contacts the metal sheet. The ram moves down to the die.
- The nut punches the hole. The waste from punching is removed through the die.
- The punch moves up to base position, the metal sheet is removed from the press.
- The diverter opens, the nut is pushed up into the clamps of the ram. The next cycle can start.
This function sequence describes a Picasso I punch head with locking feature. Available on a regular basis are also the variants Picasso II without locking feature for use with C frames, Picasso Auto for application with RXM piercing nuts, as well as Socrates for application with PN nuts.
In addition, Arnold & Shinjo is supplying a large number of punch head variants, for instance double or block punch heads.
Should your component part be of a particular geometry which cannot be implemented with standard tooling, special punch heads can be designed and supplied as required.