fastening & assembly solutions and technology - Approved Business
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fastening & assembly solutions and technology - Approved Business

fastening & assembly solutions and technology - Approved Business fastening & assembly solutions and technology - Approved Business

approvedbusiness.co.uk
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13.12.2012 Views

Stud Welding: light in weight, not on power – Nelweld N1500i The Nelweld N1500i The new, dependable and light weight Nelweld N1500i stud welder is not light on power. This little giant packs 50% more power than its nearest rival and weighs in at only 32Kgs. Packed with advanced innovation it’s the stud welder the world has been waiting for. Nelson Stud Welding UK 47/49 Edison Road, Rabans Lane Industrial Estate, Aylesbury, Buckinghamshire. HP19 8TE. UK Tel: +44(0)1296 433500 Fax: +44(0)1296 487930 Email: enquiries@nelson-europe.co.uk Or visit our web site: www.nelson-europe.co.uk EN ISO 9001 VDA 6.1 zertifi ziert

Improved accuracy for servo press range Press or interference fit of parts is a quick and simple method of joining parts. A part is pushed into a recess, which is slightly undersized causing interference. The fit is made possible by the material elasticity, which gives rise to a compressive force between the part and the recess. The join is maintained by the friction, which is usually a function of this compressive force. Kistler has recently expanded its range of NCF servo press systems with the introduction of the NCFT-B for low force interference fit processes, for forces below 1 kN. The company’s servo press actuators range includes a piezoelectric force sensor and a rotary encoder to measure and control position. The actuator is linked to a servo controller and a program/monitor unit. The NCFT has been used where the limited position and speed control offered by pneumatic systems, is inadequate. Most applications have been on plastic parts with a high quality requirement, such as drug delivery devices. NCFT-B is a development of an earlier design that improves the accuracy of low force measurements. A force sensor mounted on the end of the shaft eliminates any force measurement uncertainty due to friction in the bearings. The piezoelectric force sensor offers two selectable calibrated force ranges, allowing the same NCFT-B to switch between operations with differing force requirements. It is possible to specify a series of positions and speeds accurately and clearly define the fit process. A position repeatability of better than 0.005 mm and a speed greater than 300 mm/s is possible. A fit program, consisting of a series positions and speeds, can be entered into the control electronics. For some operations force feedback can be used. Alternative control programs can easily be selected by a master PLC for different parts and materials. Bellows grippers provide for fragile assemblies Pneumatics leader Festo has launched a range of bellows grippers that provide an automation solution to the problem of transporting or holding fragile workpieces. The DHEB series grippers employ flexible bellows which expand in diameter when actuated by an integral pneumatically-driven piston, to securely grip the interior surface of a workpiece. The grippers are single-acting devices, which simplifies their control significantly. When their air supply port is pressurised, an internal piston optionally draws a wedge up or down within a rubber bellow, causing it to deform outwards to meet and conform with the interior contour of the workpiece, such as the neck of a bottle. This provides a secure but gentle air-tight grip, which is maintained until the air supply port is exhausted, whereupon the force of the bellows returning to their original shape pushes the piston back into its initial position. There are two versions, offering a choice of bellows activation directions to suit different handling machine actions; one uses an upward piston stroke to deform and expand the bellows, the other uses a downward stroke. Furthermore, the grippers are not limited to gripping the inside of workpieces - multiple units can be configured for grasping external surfaces, such as the edges of a printed circuit board. The tools are available with 11 choices of contiguous bellow sizes, ranging from 8 to 63 mm. FESTO 01252 775000 FAST OCTOBER 2011 FASTPRODUCTS: Assembly systems The degree of control offered by electrical systems greatly exceeds that offered by pneumatic systems. The monitor unit applies a series of tests to the force/displacement curve to provide a quality assessment of all parts. The monitor unit can retain or export manufacturing statistics, as required. Maintaining and running a pneumatic or hydraulic circuit usually has a greater energy demand and therefore higher operating costs than equivalent electrical systems. An electrical system has the benefit of only using energy when required, which greatly helps to improve its energy efficiency. The NCFT offers a compact and low weight design. The 1kN servo press actuator module is just 551 mm long, with a mass of 5.8 kg. This makes the NCFT suitable for Specialist applicator manufacturer PC Cox has launched two pneumatic sealant and adhesive applicators, which have already generated significant interest with orders placed in Russia and Japan. Jetflow3 is a multipurpose applicator that outputs both bead and spray and can replicate the highly accurate spray patterns crucial in sectors such as automotive repairers and refinishers. The applicator is simple to change from bead to spray and is ideal for use with all conventional and sprayable low to high viscosity sealants. The company believes that Its easy and accurate regulation of incoming air flow means there is no other applicator available currently that provides this level of flexibility and controlled delivery. It is also the only pneumatic applicator that can convert between cartridge and sachet; the Jetflow3 does it all, spray, lay beads and accept cartridges, sachets or pouches, it is claimed difficult locations and manipulation by robots. For manufacturing process where a small number of fit operations are required and there is no pre-existing hydraulic or pneumatic circuit, an electrical system is a simple and low cost addition to a manufacturing facility. KISTLER INSTRUMENTS 01256 741550 Pneumatic applicators are well received The latest in the Airflow series, the Airflow3, is a single component pneumatic bead applicator ergonomically designed for industrial applications and has already been short-listed for a design award. PC Cox tells us that it is a more efficient, modern and aesthetically pleasing applicator that is straightforward to use in the application of low to high viscosity sealants. A built in silencer delivers a quieter operation and integrated air connectors offer greater protection, as there are no exposed parts. An integrated air pressure regulator allows for precise and smooth flow control. The Airflow3 takes pouches, sachets or cartridges. There is also a combi version accepting sachets and cartridges. Both new products have been ergonomically designed to be light and comfortable to handle, allowing longer usage time to aid manufacturing productivity. PC COX 01635 264500 67

Stud Welding: light in<br />

weight, not on power –<br />

Nelweld N1500i<br />

The Nelweld N1500i<br />

The new, dependable <strong>and</strong> light weight Nelweld N1500i stud welder<br />

is not light on power. This little giant packs 50% more power than<br />

its nearest rival <strong>and</strong> weighs in at only 32Kgs. Packed with advanced<br />

innovation it’s the stud welder the world has been waiting for.<br />

Nelson Stud Welding UK<br />

47/49 Edison Road, Rabans Lane Industrial Estate,<br />

Aylesbury, Buckinghamshire. HP19 8TE. UK<br />

Tel: +44(0)1296 433500 Fax: +44(0)1296 487930<br />

Email: enquiries@nelson-europe.co.uk<br />

Or visit our web site: www.nelson-europe.co.uk<br />

EN ISO 9001<br />

VDA 6.1 zertifi ziert

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