Berlin, Ct – Royal Machine & Tool has introduced a newly designed QVC (quad vertical chuck fixture) for Horizontal Machining Centers featuring a patent pending clamping screw cartridge which provides greater gripping forces and ease of maintenance.

In announcing the newly designed QVC, Guy Byrne, General Manager, stated, “Older designed QVC’s required the replacement of the Master Jaw and the Adjusting Screw when thread damage occurred. With the new design, simply unfastening the old damaged cartridge and fastening in a new cartridge allows repair in the field and quickly returns the chuck to service. Thus, eliminating the possible downtime and costly expense of rebuilding. ”

QVC 500 Quad Vertical Chucking Fixture with American Standard Tongue and Groove Master Jaws and Cartridge Assembly.

Current chuck design problems virtually eliminated.

“Unlike prior chuck designs, where the thread is cut in the Master Jaw, the new design eliminates the thread in the jaw using the threaded cartridge inserted in a pocket of the Master Jaw. The problem of past chuck designs, which had the upper jaw threaded, is virtually eliminated, “ Byrne continued, ”by providing a cartridge assembly for clamping
a work piece securely and safely in a machine tool.”

“A replaceable insert, with any desirable machine-in thread, is mounted to the Upper Master Jaw. Thus, replaceable inserts may be used to accommodate adjusting screws having various complementary thread designs, including a full diameter Acme thread, in place of the square thread previously required for similar chuck designs. The Acme thread is much more economical to produce…is a stronger form of thread…and is easier to repair or replace.”

“While the Acme thread has a sloped thread side, it distributes pressure on the full diameter of the adjusting screw and is not forced into the lower operating jaw …as it would have were there only 50% contact with the upper master jaw in the
old design.”

Various alternative design options.

Design options to meet specific design requirements of the cartridge assembly include:

1. The threaded insert can be made with different style master jaws.
2. The clamping screw can be made of different materials and pitch.
3. The threaded replaceable insert may be mounted in the upper or lower jaw.

Pending Clamping Screw Cartridge provides greater gripping force and ease of maintenance is shown in underside view of jaw assembly.

The new QVC is designed with American Standard Tongue and Groove Master Jaws and is available in 400MM and 500MM sizes. Mounting features can be supplied to the customer’s specific requirements. and the new design permits the use of “off-the-shelf” standard blank jaws or, better yet, customer’s existing top tooling. “

Royal QVC’s hold up to 8 parts and permit virtual continuous spindle use, decreased tool changes…and practically eliminate downtime for parts changeovers.

Bernie McAloon, Sales Manager, stated, “Our new QVC provides the ideal workholding solution for today’s high volume industries to meet their ever-increasing demands to manufacture high volume, uniquely shaped, varying sized quality products …on time and still be competitively priced.”

Information on special and custom requirements is available upon request.

Founded in 1956, Royal Machine & Tool Corporation is ISO9001:2000 & AS9100 Rev. “B” Certified and serves the world’s leading industries from its Berlin, CT corporate offices and manufacturing facility representing over 40,000 square feet including state-of-the-art CNC machine tools. All services and products are performed/produced in the USA and include the designing and building of custom and standard workholding devices from simple manual fixtures to sophisticated hydraulic fixtures with multiple faces. Custom and standard chucks of all types for rotating and non-rotating applications are also designed and built by Royal Machine &Tool…as well as a complete range of Contract Machining options / services from single prototype machining to high volume production requirements.