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ceramic based motor structures at approximately 4 second intervals. The SMA is equipped with three fixed and two free-standing adhesive stations with integrated device controllers for dispensing single part and two part adhesives. An integrated delay system allows the operators to load motor assemblies with uncured adhesive and retrieve "cured" motor assemblies only inches apart. The SMA will process up to 110mm motor structures in standard configuration with options for 210mm motors available on request. Based on operator speed and adhesive selection, fully processed motor structures, including structures with shorting rings, copper caps and bucking magnets, can be processed in as short as 4 seconds. At the end of the SMA process, the completed motors are available for matching with soft part kits at the final assembly stage.
The key to high performance, reliable and repeatable compression drivers and horns lies within the control of the adhesives at the critical joint- coil to diaphragm. Not only shot weight, but bead placement and balance. The ultra performance Sigma 160 HMI adhesive dispense platform delivers unbeatable performance in all of those categories and more.
Adhesive shot weight controls- Phase Automation's proprietary Active Air Control circuitry delivers unprecedented repeatability of shot weights over thousands of cycles- even with micro dispense amounts common to compression driver and tweeter assemblies. When properly setup in the recommended configuration, the Sigma 160 HIM will easily deliver 2.0 + Cpk numbers on a daily basis with 2.5+ being common with experienced users. While this does statistically minimize the chance of an under or over weight adhesive shot, the Active Air Control system takes things to the next level. The Sigma 160 HMI has built in interlock feature that will sound an alarm or override machine operation of any of the critical control parameters are out of range. When properly set up, the Sigma 160 HMI will not allow your operators to dispense an under weight or overweight shot of adhesive.
The Sigma 160 HMI addresses yet another critical problem within the compression driver and tweeter manufacturing process- Adhesive bead placement accuracy is critical to both applications, particularly so with compression drivers. The Sigma 160 equipment is built on a rock solid chassis including a 20mm thick 6061 aluminum base, 14mm aluminum backbones and a 12mm back panel. The base, backbones and back panels are tied together to form a monocoque frame to support the actuator carriages responsible for dispense valve positioning. The carriages ride on precision 20mm shafting and premium quality slide bearing assemblies. Where most companies use a single shaft and bearing, The Sigma 160 platform employs dual shafts and 4 slide bearings for increased precision and rock solid stability. Carriage placement is manual with .1mm resolution and available with servo drive for fully automated operation.
Rounding out the capabilities of the Sigma 160 is the precision turntable set. Custom turned from 316 stainless steel, the turntable rides between premium taper bearings in a ultra high rigidity mounting cup integrated into the base of the machine. The turntable is precision ground to 50.0mm for stability and ease of use. Custom turntable sizes are available on request. All Sigma 160 HMI turntables have integrated vacuum in the center. The vacuum signal is fully adjustable from a strength and timing standpoint through the touch screen and via an adjustment needle. Final assembly - The final assembly begins when the motor subassembly and the soft part subassembly are brought together. Supplied with the STS is a compliment of segmented pallet conveyor with integrated workstations. The segmented conveyor provides significant improvements over the standard belt type assembly conveyors found on other assembly lines. Dual motion path, part return and fixture recycling are easy and come at no additional cost. Not only does this save you cost on handling, it reduces the amount of assembly jigs, fixtures and components you need for a successful production run.
Finally, our customers have indicated again and again that the improved situational awareness that they have from the use of the segmented conveyor systems is a big factor in their overall efficiency gains. On line adhesive processing is performed via a pair of Pro 160 series adhesive machines. The Pro 160's are fast, efficient work-horse type machines for moderate precision adhesive beads for non-critical assembly work. These are freestanding machines in that they can be easily moved and attached to the assembly line wherever your process demands. Perhaps one of the biggest advantages of the Phase Automation STS is the rapid curing of work in progress. Typically, tweeters need to be allowed to spend 18 to 24 hours in an off-line storage position for adhesive curing. With the STS, the curing is completed in under an hour. This is accomplished with our Vertical Basket Array oven ("VBA"). The VBA is a batch process curing system. Based on a cartridge tray system, the VBA will process typical 25mm tweeters at a rate of approximately 800 per hour. Enhanced curing or capacity is available on request. Rounding out the system is a TC-1 test cabinet which is complimented with a return and packaging line. The Phase Automation STS has delivered multi-millions of premium quality tweeters and compression drivers to our customers. Contact Phase Automation to find out how your company can employ one to increase your company profitability.
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