Robotic Repeatability Testing at Robots.com

Robot repeata­bil­i­ty test­ing is a crit­i­cal com­po­nent of Robots​.com’ recon­di­tion­ing process. Our Repeata­bil­i­ty Cart accu­rate­ly tests each refur­bished robot and com­piles the data to make sure the robot is func­tion­ing like new.

What is Repeatability:

Repeata­bil­i­ty is the abil­i­ty of a robot to return to the same spot with only the slight­est vari­a­tion. Robot­ic repeata­bil­i­ty varies by robot, but gen­er­al­ly ranges between +/-0.02mm to +/-0.4mm and is very impor­tant to robot per­for­mance. It is achieved when mul­ti­ple robot com­po­nents — con­trols, motors, gears, axes — work togeth­er. When robot repeata­bil­i­ty num­bers are not with­in the cor­rect range, each axis is test­ed so the prob­lem can be pin­point­ed and corrected.

How Does the Repeata­bil­i­ty Cart Work?

Robots​.com tests each refur­bished robot for a min­i­mum of eight hours. The robot is pro­grammed to run cycli­cal­ly — stop­ping at the same spot for the cart’s pneu­mat­ic sen­sor to mea­sure its position.

New Sen­sor Style:

Robots​.com uses a pneu­mat­i­cal­ly pow­ered Gen­er­al Pur­pose Dig­i­tal Con­tact Sen­sor from Keyence. Pre­vi­ous­ly, Robots​.com’ sen­sor required the robot to press it at the end of each cycle. Now the 32mm high-tech sen­sor moves on its own to test the posi­tion of the robot. This leads to less wear and tear on the sen­sor. This sen­sor is also eas­i­er to install and water-resis­tant (IP67 rating).

Stur­dier Cart:

The Robots​.com cart also has lev­el­ing pads. This increas­es the reli­a­bil­i­ty of the data collected.

Faster Pro­cess­ing:

The robot repeata­bil­i­ty cart fea­tures a new com­put­er for stor­ing the repeata­bil­i­ty data. Faster pro­cess­ing speed allows for a faster assessment.

Inter­est­ed in learn­ing more about Robots​.com robot recon­di­tion­ing process? Con­tact our Sales Depart­ment here, or call us at 877−762−6881.