Posts Tagged ‘AME’

Saws built for low vibration work best
by Willy Goellner, CEO, Advanced Machine & Engineering, Rockford, IL

Carbide saws equipped with carbide or coated cermet-tipped blades are designed to cut extremely hard materials.  How effective the blade is depends in large part on how the saw is built.

Fig. 2 Close loop force distribution on pivot saw

Fig. 2 Close loop force distribution on pivot saw

The relatively brittle carbide or cermet tips require very rigid and backlash free machines, operating with low vibration to avoid cracking of the cutting tips and ensure an equal chip load on each tooth of the saw blade.  This is especially important with the spindle drive.  The spindle drive gears must have low backlash and must be supported by preloaded, heavy-duty bearings to minimize vibration.  The same is true with the blade feed mechanism and the head slide or pivot mechanism.

Generally, there are two types of saws, differentiating in the way the blade is fed into the work piece: slide-type or pivot-type saws.  The more common saws are slide-type machines, where the head slide could be arranged in a vertical, horizontal or angular position. The preloaded slide could glide on box ways or preloaded linear ways. Experts still argue whether box ways using low friction lining and hydraulically preloaded way clamps have a better dampening effect than linear ways with hardened balls, rollers and blocks.

Pivot-type saws are simpler, have fewer components and, if properly designed with oversized taper roller bearings, can be made very rigid by preloading the pivot bearings to the limits.  Built for extreme stiffness, a pivot mechanism for the spindle gear box would be nested in a rigid base close to the floor, fed by a heavy duty ball screw attached to an upper sub-assembly, such as the fixture frame, and having the spindle located between the pivot point and the feed mechanism.  Due to the feed force and the center of gravity of the head, the ball screw is always under tension, which eliminates the need for a preloaded ball screw and provides a very positive feed for interrupted cutting, enhanced longevity and efficiency.

This arrangement provides a closed loop force distribution since closed frames are stiffer than open profiles. It also subsequently reduces the remaining deflection of the feed mechanism due to the ratio of ball screw and spindle in relation to the pivot point and contains the cutting forces within the machine structure.

Open loop force distribution on horizontal slide saw

Fig. 1 Open loop force distribution on horizontal slide saw

Compared to a standard slide machine (Fig. 1), a pivot machine would be stiffer and less expensive. Pivot saws are built to saw material up to 24” (600 mm) stock size and have proven themselves in various standard and special saw systems.

Circular carbide tipped blades are limited to a maximum of 80 inch blade diameter and can therefore only cut up to about 30 inch diameter material.  However, the cutting volume per minute is much higher with circular carbide saws, compared to carbide tipped band saws.  In this range up to 30 inch material, carbide saws using circular blades really shine.

For more information, visit www.ame.com or contact:

Tim Waterman
ADVANCED MACHINE & ENGINEERING CO.
2500 Latham St.
Rockford, IL 61103
Phone: 815-316-5277
Fax: 815-962-6483
E-mail: info@ame.com
Connect with AME online: yt wp twit li gplus fb

Advertisements

Advanced Machine & Engineering Co., (AME) Rockford, IL announces a new line of pneumatic rod locks. Advanced Machine & Engineering Co., a leading manufacturer of stand-alone and NFPA cylinder mount pneumatic rod locks since 1994, has now introduced the Amlok RLI, its fourth-generation power-off rod lock. This basic lock unit is in addition to the RLN and RCH, expanding the company’s rod lock product line. The RLI Metric (ISO 6431) series will complement the standard NFPA line. This fourth-generation lock is the culmination of 18 years of manufacturing and marketing of pneumatic and hydraulic rod locks.

The rod lock’s standard features include anodized aluminum construction, a heavy-duty clamp system and power-off clamping. The standard seal material is carboxylated nitrile.

The unit uses dry-filtered air, has a release pressure ranging from a minimum of 4 bar/60 PSI to a maximum of 8 bar/120 PSI. The operating temperature ranges from 10 degrees F to 180 degrees F. Maximum rod tolerance is +0.000 in./-0.002 in.

Rod lock options include stainless or electroless nickel-plated housing, viton seals, wiper scraper and sealed versions. The lock mounts to standard ISO 6431 cylinders or can be stand-alone using MXO, MF1, MF2 and MS1 mounting configurations.

The Amlok RLI is available in various sizes for rod diameters of 16mm, 20mm, 25mm, 32mm and 40mm and cylinder and bore diameters from 40mm to 160mm. Holding forces range from 200 lbs/890N to 2,450 lbs/11kN.

The RLI power-off pneumatic rod locks are particularly-well suited for holding applications in industries such as automotive, mobile, food, machine tool and military test, among others.

Advanced Machine & Engineering Co., located in Rockford, Ill., is a global manufacturer and distributor of precision machine components, fluid power components, fixturing/workholding, power drawbar and spindle interface components, and saw machines and blades. The company also designs and builds special machines for a variety of industries and provides machine rebuilding, retrofitting and contract manufacturing services. AME has partners and customers around the world and across the U.S.

For more information, visit www.ame.com or contact:

Tim Waterman
ADVANCED MACHINE & ENGINEERING CO.
2500 Latham St.
Rockford, IL 61103
Phone: 815-316-5277
Fax: 815-962-6483
E-mail: info@ame.com
Connect with AME online: yt wp twit li gplus fb

Advanced Machine & Engineering Co., (AME) Rockford, IL announces the Fourth-Generation RLI Series Rod Locks.  The new Pneumatic Series RLI (ISO 6431) Metric Rod Lock has been developed as a solution to control problems inherent to pneumatics – over travel, drifting, bouncing and reverse traveling.  The AMLOK® Power-Off Rod Lock can be mounted to a cylinder, or as a stand alone unit.

The patented AMLOK® Type RLI is constructed of black anodized aluminum housing with a special piston and wedge locking mechanism actuated by multiple springs that mechanically lock the rod quickly and securely. The clamp is unlocked when air actuates the piston, compresses the spring and releases the locking device.

  • No rod displacement on engagement
  • Large clamping surface reduces pressure-per-square-inch on the rod, extending service life
  • Fast response time
  • Low backlash
  • 4 bar (60 psi) release pressure
  • Precision holding 0.002”-0.003”
  • Consistent clamping force in both directions
  • High cycle rates and accuracy
  • Holds load during power/pressure loss
  • Compact unit, easy integration
  • Versatile through hole tie rod mounting to ISO 6431 style pneumatic cylinders
  • Many NFPA style-mounting attachments available for stand alone applications

The optional sealed RLI Series design is suitable for food and wash down applications as well as pneumatic and hydraulic presses, scissor-lift tables, test and positioning equipment, amusement ride equipment, printing and paper handling equipment, theatrical equipment (platforms), assembly equipment, and machine tool applications.

Advanced Machine & Engineering Co., is a manufacturer located in Rockford, Ill., serving the Machine Tool Industry with precision components and accessories, including spindle interface components, workholding devices and, through our sister company, Hennig, machine enclosures, chip removal and filtration systems; the Fluid Power – Safety market with cylinder rod locks and safety catcher devices; and the Production Saw market with our AmSaw carbide saw machines and Speedcut blade products. AME has manufacturing partners and customers around the world and across the U.S.

For more information, visit www.ame.com or contact:

Tim Waterman
ADVANCED MACHINE & ENGINEERING CO.
2500 Latham St.
Rockford, IL 61103
Phone: 815-316-5277
Fax: 815-962-6483
E-mail: info@ame.com
Connect with AME online: yt wp twit li gplus fb

Advanced Machine & Engineering Co. (AME) Rockford, IL announces their return to IMTS 2012.  As in the past, they will have two booths to showcase their products and services.

Visit Booth W-2405 to learn about precision machine components, featuring:

  • Amrok Tombstones
  • Amflex Modular Workholding Systems
  • Triag Clamping Systems
  • Spieth Precision Machine Components
  • Sitema Safety Catchers and Amlok Rod Locks
  • Contract Manufacturing Services
  • Special Machine Tools – Design & Build

Visit Booth E-5714, for additional AME products such as:

  • Ott-Jakob Power Drawbars
  • Stotz Measuring Systems
  • Spindle Interface Products

Our sister company, Hennig, Inc., will have their complete line of products in Booth E-5714 and W-2405.

Advanced Machine & Engineering Co., is a manufacturer located in Rockford, IL, serving the Machine Tool Industry with precision components and accessories, including spindle interface components, workholding devices, and, through our sister company, Hennig, machine enclosures, chip removal and filtration systems.  The Fluid Power – Safety markets are served with cylinder rod locks and safety catcher devises; and the Production Saw market with our Amsaw carbide saw machines and Speedcut blade products.  AME has manufacturing partners and customers around the world and across the U.S.  To learn more, visit www.ame.com.

Hennig, Inc. design and produces custom machine protection and chip/coolant management products for state-of-the-art machine tools.  Hennig products are designed to protect against corrosion, debris and common workplace contaminants.  Manufacturing facilities located in the U.S., Germany, Brazil, India, Japan, France and South Korea.  Repair centers are located in Machesney Park, IL; Chandler, OK; Livonia, MI; Blue Ash, OH; Mexico City, Mexico and Saltillo, Mexico.  To learn more, visit www.hennigworldwide.com.

For more information, contact:

Tim Waterman
ADVANCED MACHINE & ENGINEERING CO.
2500 Latham St.
Rockford, IL 61103
Phone: 815-316-5277
Fax: 815-962-6483
E-mail: info@ame.com
Connect with AME online: yt wp twit li gplus fb

Aquatic Development Group uses specially modified Amlok® product from Advanced Machine & Engineering to protect movable pool floor stability at Ithaca College

AFW™ pool raising and lowering system, designed by Aquatic Development Group, operates on a series of hydraulic rams connected by a rebar structure, to evenly and smoothly raise and lower the pool floor. Especially useful when floor is occupied by aquatic therapy patients or water aerobic participants.

Aquatic Development Group (ADG) of Cohoes, New York is a professional design, manufacturing and construction firm serving the waterpark, resort, hotel aquarium, aquatic therapy and commercial/institutional swimming pool markets.  The company’s recreational aquatic creations range from Disney to the Wisconsin Dells, plus a diverse group of institutional and physical therapy applications are included in the company’s successes.   Among ADG’s many unique designs is the AFW™ movable pool floor system that allows depth adjustment from deck level down to deeper water for various uses, including physically-challenged patient aquatic therapy.  The system is also used routinely in pools adapted for competitive swimming, diving, water polo and other activities, where the depth adjustment is beneficial and allows more multi-purpose use of a facility.

…and then lowered smoothly into position for therapy with minimal patient upset.

Used for aquatic therapy, the pool floor can be position at deck level…

At the touch of a button on the master control module, the pool floor is raised and lowered by a system of synchronized multiple hydraulic cylinders that work to maintain consistent floor level throughout the process.  ADG determined it was necessary to include a mechanical locking system that would secure the cylinder rods in position, at all points of travel, especially when the floor was occupied by physical therapy patients, water aerobics participants etc.  The floor also featured a passive mechanical pulley system to maintain the floor position in the event of a catastrophic hydraulic failure.

On a recent project using this system at Ithaca College (Ithaca, New York), as ADG  Engineering Manager Rob Schiavi details, “We had a four-cylinder ram system with a rebar structure that was designed so that any two diagonally opposed cylinders could malfunction without compromising the stability or safety of the floor and its occupants.”  He also notes that the company had developed a special 304L stainless steel and non-skid, chemically-impervious PVC floor grating that was considerably lighter weight but somewhat less stable than conventional concrete pool flooring.

Illustration of pool bottom showing AFW™ design of stainless steel and non-skid PVC flooring.

The hydraulic circuits operate on a shuttle valve system with passive engage ram failure.  Eliminating the mechanical pulley system on the design results in a smoother transitioning of the pool floor level, particularly important when people are present, Schiavi notes.

In designing the hydraulic ram system and in search of an appropriate cylinder locking protection system, ADG turned to its local subcontractor, who recommended the Amlok® system of hydraulic cylinder rod locks from Advanced Machine & Engineering (Rockford, Illinois), a longtime supplier of hydraulic and pneumatic rod locks to industrial and commercial applications worldwide.  AME Business Development Manager Ken Davis explains, “We saw this project as an ideal application for our hydraulic rod locks, with one particular challenge, namely, the ingestion of chlorinated pool water.”  To overcome this challenge, a modification was made to the seal design and materials on the four stainless steel rod locks to be installed on the ram system built by ADG’s subcontractor (click here for ram system specs).  Each lock has the capacity to provide a locking force to 50,000 lbs. at 1500 psi release pressure (click here for locking force specs).

RCH Series Amlok® hydraulic rod locks hold cylinders in place and automatically seize cylinders in position, in the event of a catastrophic power loss.

During normal operation, the hydraulic rod locks used on this application (RCH Series) allow free movement of the cylinder through the lock housing, as the supplied hydraulic pressure maintains an open position on the lock.  When the desired pool floor level is achieved, the hydraulic pressure is removed and the cylinder is mechanically locked into position.  However, in the event of a catastrophic power loss or other hydraulic system failure, when the pressure is removed, the lock immediately clamps to retain the cylinder securely in its present position until power is restored and the lock release is again activated.

AME worked closely with its local distributor, Airline Hydraulics Corp. (Bensalem, Pennsylvania) to supply this system to ADG.

For more information on this story, please contact:

Rob Schiavi, Engineering Manager
Aquatic Development Group
13 Green Mountain Drive
Cohoes, NY 12047
Phone:  518-783-0038
Web:  www.aquaticgroup.com

Or

Ken Davis, Business Development Manager
ADVANCED MACHINE & ENGINEERING CO.
2500 Latham St.
Rockford, IL 61103
Phone: 815-316-5277
Fax: 815-962-6483W
E-mail: info@ame.com
Web: www.ame.com
Connect with AME online: yt wp twit li gplus fb