Tooling on roll forming and slitter arbors has traditionally been held onto the arbor by using a threaded nut on the end of the arbor that receives the tooling. The threaded nut must have mating threads that are machined into the end of each arbor. These threads on the arbor are subject to damage as tooling is loaded onto the arbor, the nut is threaded upon the arbor or removed from the arbor, or just by being exposed in the work place. Damaged threads can require costly maintenance to restore to a working condition. Therefore, there is a need for a more robust system to hold tooling on arbors that does not require threads.
The present invention is an arbor tool locking system. The system uses a flanged nut that rotatably engages a keyed collar on the arbor. The collar forms a part of the arbor and is spaced from that part of the arbor that carries the tooling. The nut is slid over the collar and partially rotated to cause the nut flanges to be positioned between the collar and the tooling upon the arbor with the nut compressed against the tooling.
An object of the invention is to provide a locking mechanism to hold tooling on arbors without the use of screw threads.
Another object of the invention is to provide a locking mechanism for tooling of a roll former and slitter which can be economically maintained and of rapid operation.
Still other objects of the invention will become apparent upon reading the following description.
A preferred embodiment of this invention has been chosen wherein:
The tool locking system of this invention includes a nut 10 and a collar 11 forming a component of arbor 12. Arbor 12 is shown as forming a part of a slitter 5. The nut 10 has equally radially spaced flanges or bosses 14 that protrude toward the inside of the nut as shown in
The outer diameter of collar 11 at the ends 21 of the flanges 16 is less than the major diameter 26 of the arbor to allow tooling 30, in the form of cutters and spacers, to pass over the flanges 16 at the end of the arbor 12. This outer diameter of collar 11 is also less than the inner diameter of nut inner surface 13.
Tooling 30 is stacked on the arbors 12, as shown in
The above described invention is not to be limited to the details given but may be modified within the scope of the following claims.
This is a continuation of U.S. patent application Ser. No. 11/754,100 filed May 25, 2007.
Number | Name | Date | Kind |
---|---|---|---|
3463044 | Rossman et al. | Aug 1969 | A |
5450740 | Lovinggood et al. | Sep 1995 | A |
5720195 | Ruple | Feb 1998 | A |
5887472 | Abbey, III | Mar 1999 | A |
5899252 | Pozzo | May 1999 | A |
6637997 | Ahms et al. | Oct 2003 | B2 |
Number | Date | Country | |
---|---|---|---|
20100175529 A1 | Jul 2010 | US |
Number | Date | Country | |
---|---|---|---|
Parent | 11754100 | May 2007 | US |
Child | 12730964 | US |