Fanuc 7 Axis Robot

[Lola Maroun]

Anarticulated robot arm design uses a series of axes, ranging from3-axis models to 7-axis models. A 6-axis robot is one of the mostadaptable articulated robot configurations. With 6 axes, it can moveforward and back, up and down. It can also yaw, pitch and roll,resulting in a complex set of movements that can simulate themotions ofa human arm. This articulated robot advantage allows it to do thingssuch as grab small items from a shelf and put them on a conveyor.Thesame complexity also makes articulated robots an excellent choiceforrobotic packaging solutions, palletizing and custom applicationssuch asdeburring robots.

Deltarobots are umbrella-shaped robots designed to mimic themovementof the hand. This robot is ultra fast, however, so they can operatewithmuch more accuracy and speed than people. Also known asparallel-linkrobots or spider robots, delta robots are often an excellentalternativeto expensive all-in-one automation systems.

In delta robots, the motors are fixed within the frame, ensuring thatmass and resistance stay above the workspace and away from theultra-light arms and end-of-arm tooling. Delta robots are usually alight payload robot with tooling that might include a gripperfinger,vacuum cup, a gripper arm or another custom application.

Because of their unusual construction, delta robots can move theirarmswith exceptional dexterity within their workspace in the x and yaxes,but usually with limited movement along the z axis. Their workenvelopeis generally more controlled and limited than an articulated robotworkenvelope. Delta robots will require 4 or more axes to complete atask assimple as moving an item from a bin to a box, or as complicated asgrasping pill bottles or moving flat items into a standing positionorother types of part reorientation.

Delta robots are also suitable for use in plants with strict healthandsafety regulations. They can be configured to comply with foodmanufacturers standards for equipment washdown. Motors can beisolatedin enclosures to ensure that food or pharmaceutical product isprotectedfrom potential contaminants such as lubricants, fragments of metalorplastic, or dust.

Delta robots are practical choices to perform repetitive tasksquicklyand consistently. This solution is especially useful when replacinghuman activity that causes mental fatigue or repetitive motioninjuries,such as carpal tunnel syndrome, back pain or tendinitis.

By reducing the strain on employees, this robotic series improvesworksite safety and frees people up to focus on moretechnically-oriented tasks. FANUC has more cobot models than anycobotmanufacturer in the industry, including six models ranging from 4 to35kilograms in payload for nearly any manufacturing application.

In almost every industry, finished products must be packed intopalletconfigurations for shipping. Although each sector has differentsizes offinished products with separate weight requirements and variousshippingconfigurations, there is a palletizing robot option for almost everyjob.

Palletizing robots are job-specific equipment that serve as a parttransfer robot. These heavy-duty robots are installed in ways thatallowthem to interact with the last stages of the assembly line to grip,lift, move and arrange payloads to preset configurations.

Material handling robot applications for high payload palletizingrobotscan include payloads up to 2,300 kilograms. FANUC was one of thefirstrobot suppliers to develop a series specifically designed forpalletizing and still leads the way in the industry.

FANUC offers a selection of models that can be customized to meet thewelding demands of your organization. An arc welding robot comeswith avariety of tools that increases versatility and makes the weldingprocesses safer. FANUC also offers a series of arc welding cobotsableto work in the same space with your welding operators.

Top mount robots are designed to be light enough to mount safely overtheworkspace as part of a robotic assembly system, making them a typeofmobile robot. Top mounts or a gantry robot can allow it to moveabovethe manufacturing or production process.

Paintrobots bring more consistency and speed to your paintingapplications and improve safety in hazardous painting workenvironments.These coating robots have a smooth aluminum surfacethatresists contamination and is easy to clean. The aluminum surfacealsokeeps paint robots lightweight so that they can run on less power. Ahollow wrist feature allows for tubes to run through the robot,eliminating the need to run outside hoses.

Although SCARA robots are often small assembly robots and may beconsidered a light payload robot, depending on the model, they canalsohandle a payload up to 6 kilograms. Because they feature apedestal-mount design, they fit into smaller footprints and operatewithin an efficient SCARA robot work envelope. This offers excitingpossibilities for a variety of robotic packaging solutions.

Hello,

I want to know what should be axes limits to be sure, that robot won't get in any inappropriate position.

Last time I was jogging and suddenly the robot stopped without any information about approaching the limit and weird error appeared at TP - SRVO-046 OVC alarm (Group: 1 Axis: 5). After few hours I managed to fix it, but it was more luck than skills, and I don't want it to repeat. Now the limits on each axis are lower -360 deg and upper 360 deg.

Can someone help me with this issue?

Oh you're right guys I know that the limits should be different, but I am not the person who setted it up. I think that it was the factory settings.

We have 6 axes robot Fanuc LR Mate 200iC - I found in datasheet information about motion ranges, but I want to be sure - if there is information that J1 motion range (degrees) is 340 I should set on TP lower limit -170 and the upper limit 170, am I right?

On every Fanuc robot I have ever worked on it won't allow you to enter a number that is beyond the max motion range of the robot, and if you try it will have a pop-up window that will tell you the maximum limit. Maybe this is not the case on older robots.

great, thanks!

One more question:

What happen if I will change J1 limits on really small values for example on -40 lower and 40 degrees upper, and after that I will reach this limit? Does any info appears, or I will just get the SRVO-046 OVC alarm??

Hitting a software axis limit will not in and of itself give the OVC alarm. OVC is an overcurrent alarm that means the robot encountered major resistance to motion and tried to overcome it, pumping higher current than is allowed. OVC you must cycle power to recover, as it can be an indication of something unsafe.

If you were to take a robot, rotate J1 90 degrees, then master it to zero at that position, i believe all of the kinematics would behave normally, but the robot would allow you to place soft axis limits that it thinks are safe but are actually beyond the hard stops, due to the incorrect mastering. Mastering should be treated as safety related, because if it is done poorly enough it can be.

I setted up new limits, and it looks like it doesn't work. I wanna try to see what happen if I would cross the limit so I gave J6 limits -30 to 30, but when I start to jog nothing happened - I moved this joint over 180 degrees without any fault information. What am I doing wrong?

Here's the issue: The setup is a new R-1000 / R-30iB with an extended axis installed. I would like to run the robot but don't have anything ready to hook the extended axis motor to. So, I get a SRVO-068 (G:1, A:7) error after turning on the controller.

I had a broken encoder cable on axis 5-6 and ther robot was standing in i really bad position for the rest of the production. I was told by FANUC that there was no possibility to move the robot without a new cable... But it also worked for axis 5-6. As you said Racermike axis five did fall, but that is no problem with my tool.

If you have DCS in your robot, you will also have to deactivate all cartesian positions checks to be able to apply new DCS changes occurring when you change in axis order. Also remember that the axis limits are not active when you loose mastering.

Working in conjunction with the axis 5, this axis rotates the upper arm in a circular motion moving parts between horizontal to vertical orientations. This axis can be known by different names depending on the manufacturer. For example: Motoman R and Fanuc J4.

This axis allows the wrist of the robot arm to tilt up and down. The pitch, or bend, motion of this axis is up and down, much like opening and closing a box lid. This axis can be known by different names depending on the manufacturer. For example: Motoman B and Fanuc J5.

This is the wrist of the robot arm. It is responsible for a twisting motion, allowing it to rotate and is usually capable of more than a 360 degree rotation in either a clockwise or counterclockwise direction. This axis can be known by different names depending on the manufacturer. For example: Motoman T and Fanuc J6.

The overall flexibility, strength and reach make the six-axis robot ideal for manufacturing. Six axis robots can bring a higher level of precision to their applications by having increased motion control capabilities.

Designed to be able to work in tandem with humans, these cobots are able to be programmed easily and in most cases able to be reprogrammed to do a different task without having to change your entire production layout. This allows you to be able to automate small batch runs and frequent line change-overs.

The way these six axis robots are able to contort their bodies to get to hard to reach places make them ideal for a variety of tasks within manufacturing. Everything from painting and welding to more complex assembly line tasks that include tough to reach angles.

T.I.E. Industrial is your go to when it comes to refurbished six axis robots. To find out more of what we have in stock or request a quote fill out our form on this page. You can also browse our robot parts on our website and request a quote for a replacement or repair for your part.

3a8082e126