{"id":18512,"date":"2015-06-23T08:34:10","date_gmt":"2015-06-23T06:34:10","guid":{"rendered":"http:\/\/www.expo21xx.com\/news\/?p=18512"},"modified":"2015-06-23T11:11:53","modified_gmt":"2015-06-23T09:11:53","slug":"ur5-robot-glidewell-laboratories","status":"publish","type":"post","link":"https:\/\/www.expo21xx.com\/news\/ur5-robot-glidewell-laboratories\/","title":{"rendered":"UR5 robot helps Glidewell Laboratories optimize its production cycles"},"content":{"rendered":"
\"Glidewell

Glidewell Laboratories has now integrated seven UR5 robot arms. They each tend four CNC milling machines.
Photo by Universal Robots ApS<\/i><\/p><\/div>\n

Having a UR5 robot tend four CNC machines milling dental crowns optimizes a substantial part of the production cycle at Glidewell Laboratories in Newport Beach, California.<\/p>\n

It usually takes five days from when a dentist sends an impression of a patient\u2019s teeth to the lab, until the finished crown returns. A process, that Glidewell Dental Laboratories wanted to optimize. David Leeson, engineering manager at Glidewell, had his eyes on Universal Robots\u2019 collaborative robot arms as he researched potential automation solutions:<\/p>\n

\u201cI had followed the collaborative robot development for a while, and hearing that the UR robots were used at BMW was a vote of confidence in this new type of robot. I finally got to play around with a UR5 at Automate 2013 and realized it was a real industrial piece of machinery and not just a toy,\u201d says Leeson, who bought the first UR5 robot in 2012 and is now waiting for the seventh to be delivered.<\/p>\n

The UR5 robot picks a crown to be milled from dispensers with blanks in 16 different shades. The UR5 places the blank in the milling lathe, picks it back out and places it on a conveyor after the 10 minute milling cycle. A vision camera monitoring the dispensers with shades communicates with the robot. If a dispenser is empty or jammed, the vision guidance enables the robot to work on a crown in a different shade, ensuring continued production while an operator can be alerted to fix the dispenser issue.<\/p>\n

The benefits of single part flow<\/strong><\/p>\n

Since the milling cycle is 10 minutes, it was not feasible for Glidewell to have an operator stationed at the machine to manually load and unload each blank. Instead, the lab inserted the crowns in batches of 15 each which only needed to be done every two hours.<\/p>\n

\u201cBut now with the UR robot, we can insert each blank immediately into the mill when we receive the CAD scan without waiting for 15 cases to arrive, having the operator nest them into the 15 piece block,\u201d explained Leeson.<\/p>\n

Achieving a dynamic, single part flow with the UR5 robot has cut the production cycle time from 28 to 17 hours.<\/p>\n

\u201cThat is less time that our customers are waiting and it has efficiency benefits throughout our process,\u201d says the engineering manager.<\/p>\n

The optimized production cycle also means that Glidewell can save two operators per shift in the milling room.<\/p>\n

\u201cWe run a 24\/7 operation and the robot has freed our employees up to focus and improve on handling the complex tasks which also improves our overall product quality,\u201d says Leeson.<\/p>\n

No human-robot separation<\/strong><\/p>\n

Being \u201ccollaborative\u201d means that the UR robot can work without any safety fencing directly next to employees due to the built-in force-sensing technology enabling the robot to stop operating if it comes into contact with an employee.<\/p>\n

\u201cIn our history of automation, we used conventional industrial robots. We had to build a large enclosure and separate the people from the robot, which is expensive, takes up space, and is less flexible. It is also a safety concern if somebody defeats the interlocks on a robot enclosure. We don\u2019t have to worry about that with the force sensing in the Universal Robot,\u201d says Glidewell\u2019s engineering manager, who thinks the collaborative robots heightened the awareness of the benefits of gradual transition from manual to automated processes.<\/p>\n

\u201cWorking with a collaborative robot still requires some degree of human interaction and our employees like that. They see the robot as less threatening.\u201d<\/p>\n

Interfacing with external machinery<\/strong><\/p>\n

Automation engineer Daniel Phee had not worked with collaborative robots before and was surprised at how easy it was to program the robot:<\/p>\n

\u201cThe interface on the touch screen makes it very easy to program the robot. I used a combination of the teach method and my own script. I really liked how reliable the UR robot is, you don\u2019t have to worry about maintenance and we have had no big operation issues come up.\u201d<\/p>\n

The teach method allows the user to simply grab the robot arm and move it through the way points in the desired task. It took Glidewell about 5-6 months to fully integrate the first application, but this was mostly down to building custom milling machines and working with heavy IT infrastructure.<\/p>\n

\u201cBut after this it was easy. With the next robots, it only took us 2-3 days to install the complete system,\u201d says Daniel Phee.<\/p>\n

David Leeson was struck by the fact that interfacing with external equipment was a native capability of the UR robots.<\/p>\n

\u201cWe wanted to use TCP\/IP to easily work with inexpensive, non-industrial hardware instead of having to buy Modbus or something costly like that. As a result, we\u2019ve got simple integration with a machine vision that we did all the coding in-house for while avoiding having to buy a proprietary expensive system.\u201d<\/p>\n

Enabling sustained growth<\/strong><\/p>\n

Glidewell Laboratories has grown every year since its inception. David Leeson sees robotic automation as key to sustaining this trend:<\/p>\n

\u201cWe will likely get 3-4 more UR robots in the near future. The only limiting factor right now is that we need more blocks for the individual crowns. As soon as we have those, we\u2019ll get more robots to handle the one crown one batch process. We\u2019re also looking into automating other steps in our production where we see the UR robots playing a key role.\u201d<\/p>\n

Repeat customers make up an increasing share of the business now, said Phil Hollingsworth, Senior Application Engineer with Sparkem Technology – distributor of Universal Robots in Southern California:<\/p>\n

\u201cOnce manufacturers experience the benefits of the UR robots, they realize what other tasks in their production they could possibly automate. The majority of our customers are within machine tending, but we are also starting to see a new, very diverse application field spanning everything from testing LED lightbulbs to loading and unloading trays of biochemical vials.\u201d<\/p>\n

For more information, please visit http:\/\/www.universal-robots.com<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Having a UR5 robot tend four CNC machines milling dental crowns optimizes a substantial part of the production cycle at Glidewell Laboratories in Newport Beach, California. It usually takes five days from […]<\/p>\n","protected":false},"author":9,"featured_media":18514,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[202,446,582,12,618],"class_list":["post-18512","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-automation-robotics","tag-cnc","tag-factory-automation","tag-human-robot-cooperation","tag-industrial-robots","tag-milling"],"yoast_head":"\nUR5 robot helps Glidewell Laboratories optimize its production cycles - EXPO21XX.com NEWS<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.expo21xx.com\/news\/ur5-robot-glidewell-laboratories\/\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Kamil\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.expo21xx.com\/news\/ur5-robot-glidewell-laboratories\/\",\"url\":\"https:\/\/www.expo21xx.com\/news\/ur5-robot-glidewell-laboratories\/\",\"name\":\"UR5 robot helps Glidewell Laboratories optimize its production cycles - 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