Success Story

Robot posi­tion­ing at the high­est level

For Control 2022 in Stuttgart, the International Trade Fair for Quality Assurance, we, Quality Automation GmbH, together with the company KORDT GmbH & Co. KG, have developed an automated and robot-controlled thread inspection.

Auto­mat­ic thread inspection

The com­pa­ny KORDT GmbH & Co. KG offers with its mod­ule TRAN­SI­CORD an auto­mat­ic thread test­ing unit, which per­forms a thread test by means of torque mea­sure­ment and mon­i­tor­ing. Among oth­er things, the thread depth and con­ti­nu­ity are checked. The con­trol of this unit was imple­ment­ed with Bosch-Rexroth com­po­nents by Qual­i­ty Automa­tion GmbH. For this pur­pose, a thread­ed pin attached to the lin­ear axis is moved in the direc­tion of the thread at a thread­ing speed, screwed in and then, at a high­er inspec­tion speed, the inspec­tion pro­gram is run. The oper­a­tor then receives the result of the test. The thread test­ing unit can be used for dif­fer­ent thread sizes.

The robot­ic automation

With its TRAN­SI­CORD mod­ule, the com­pa­ny KORDT GmbH & Co. KG intro­duced the world’s first ful­ly auto­mat­ic thread test­ing unit as ear­ly as 1966. With the cur­rent gen­er­a­tion of thread test­ing units, the thread test­ing of large com­po­nents, which was pre­vi­ous­ly car­ried out man­u­al­ly, is now also auto­mat­ed. To make this process more effec­tive and faster, Qual­i­ty Automa­tion GmbH has devel­oped a robot pro­gram that now per­forms thread inspec­tion auto­mat­i­cal­ly. Using a 6‑axis robot of the type RV-13FRLM from Mit­subishi Elec­tric, we posi­tion the inspec­tion unit over the thread with an accu­ra­cy of ten microm­e­ters. This also main­tains an exact angle, which is nec­es­sary to ensure error-free test­ing. The com­pa­ny KORDT GmbH & Co. KG has cre­at­ed a great video of the thread inspec­tion process per­formed by the robot. Get your own impres­sion of the process and: Have fun watching! 

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Contact Person
Dennis Clemens
Software Engineer
Specializations:Robotics, Motion Technology

Preyerstraße 24-26
52249 Eschweiler

With sys­tem com­po­nents from

Mitsubishi Electric Logo

Mit­subishi Elec­tric Europe B.V.

Branch office Germany
Mit­subishi-Elec­tric-Platz 1
40882 Ratingen
Nor­drhein-West­falen, Deutschland


Rexroth – A Bosch Company

Bosch Rexroth AG
Ver­trieb Europa Mitte
Bors­ingstraße 15
40880 Ratingen
Nor­drhein-West­falen, Deutschland