This deep-hole drilling unit can bore a hole up to 12-mm in diameter and 1,200-mm deep in a piston rod to allow mounting a linear-displacement transducer inside a cylinder.
The practice has become fairly routine for many machine shops, but if you make your own cylinders, it’s another step in the product process that involves placing an order, tracking shipping and receiving, and following up if something goes wrong. If you make quite a few of your own cylinders, another alternative could be to acquire your own deep-hole drilling machine.
Traditional deep-hole drilling machines can be expensive and difficult to operate, but Somex, a member of the Suhner Group, now offers customized deep-hole drilling machines capable of boring up to 12 mm diameters and as deep as 1,200 mm. These modules can be integrated directly into transfer machines, special-purpose machines, or conventional machines, such as turning machines. Somex routinely conducts tests with actual tools and materials to verify a machine’s design and performance. Tests are done at the factory using specific production tools under real production conditions.
Traditional deep hole drilling typically requires either a pilot-drill 1½ times the diameter or a drill guide bushing, which is then followed by the deep-hole drilling process. The Somex design, however, combines the guide bushing with a chip basket, allowing both items to travel in unison. The movement of the guide bushing is air-driven, which helps provide closer contact to the part while preventing coolant from escaping. Longer deep-hole drilling applications may require incorporating a support bushing to stabilize the deep-hole drilling tool.
For more information, visit Suhner Industrial Products, Rome, Ga.
