Success Story – Oberflächenanalyse mit einer Keyence Zeilenkamera

Success Story

Sur­face analy­sis with a Keyence line camera

A combination with Bosch-Servo IndraDrive and a Keyence XG line camera. The line pictures are triggered by a servo motor.
Left: start­ing image, right: zoom image.

Sur­face analysis

Many qual­i­ty cri­te­ria are checked by opti­cal con­trol of employ­ees. These checks are very exhaust­ing for the staff and unfor­tu­nate­ly they are fault-prone. A pos­si­bil­i­ty to reduce faults is the con­trol by means of an indus­tri­al image pro­cess­ing. In the starter pro­duc­tion of the com­pa­ny Robert Bosch GmbH near Hildesheim the arma­tures are checked regard­ing a plu­ral­i­ty of opti­cal fea­tures dur­ing the end con­trol. In case of cylin­dri­cal objects like an arma­ture a line cam­era gen­er­at­ing a rec­tan­gu­lar image of a bend­ed sur­face is most suit­able for that. The XG-series of the com­pa­ny Keyence offers a very pow­er­ful con­sol­i­dat­ed sys­tem for that. In an easy way it becomes pos­si­ble to incor­po­rate a line cam­era into an indus­tri­al surrounding.

Struc­tured oper­a­tor guidance

The com­pa­ny Qual­i­ty Automa­tion GmbH uses the var­i­ous scopes for design of the XG series of Keyence to cre­ate a struc­tured oper­a­tor guid­ance. This was linked to an intel­li­gent pro­grammed algo­rithm for fault find­ing, also real­ized by the com­pa­ny Qual­i­ty Automa­tion GmbH. The var­i­ous required qual­i­ty fea­tures are detect­ed and super­vised safe­ly in this way. All para­me­ters being impor­tant for the appli­ca­tion can be adjust­ed by the staff direct­ly at the equip­ment, an exten­sive knowl­edge regard­ing image pro­cess­ing is not nec­es­sary for the staff. The para­me­ters are explained in a detailed doc­u­men­ta­tion. Owing to the exten­sive Vision tools of the Keyence XG-series the pro­gram­ming of dif­fi­cult fail­ure fea­tures is simplified.

Image record­ing con­trol via ser­vo motor

A fea­ture of this appli­ca­tion is the image trig­ger­ing via ser­vo motor. The Keyence XG-series offers the pos­si­bil­i­ty to trig­ger the line cam­era via an encoder sig­nal. The IndraDrive of Bosch Rexroth has an out­put device to pass the inter­nal encoder sig­nal. By that an image record­ing can even be cre­at­ed when accel­er­at­ing or in case of dif­fer­ent drives.

Com­plex image pro­cess­ing, easy solution

A line cam­era appli­ca­tion was up to now always a very com­plex task and makes an effec­tive real­iza­tion almost impos­si­ble. By using the XG-series of Keyence the com­plex­i­ty of the project real­iza­tion will be reduced to the essen­tial fea­tures. The pro­vid­ed hard­ware is attuned at best on each oth­er and only a pro­gram tech­ni­cal imple­men­ta­tion becomes necessary.

Contact Person
QA Mitarbeiter Christoph Lutterbach
Christof Lutterbach
Software Development
Specializations: Control Engineering, Machine Vision
Customer profile

Robert Bosch GmbH

Robert-Bosch-Straße 200
31139 Hildesheim
Lower Saxony Germany

In the Lower Saxon Hildesheim Bosch started already in 1940 with the manufacturing of starters, generators, magnetos and momentum starters for the automobile technique. Besides the plant of the Business Branch starters and generators the Bosch Business Branch Car Multimedia is located in the district Hildesheimer Wald as well as different central- and investigation departments of Bosch.