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STIWA makes use of FAULHABER micromotors in compact automation system


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STIWA's compact automation system the LTM-CI, which is optimized for small part assembly.

The compact LTM-CI from STIWA is optimized for small half meeting. | Supply: FAULHABER

STIWA is an skilled developer of compact mechatronic methods that may carry out a sequence of consecutive product steps autonomously. The Austrian machine producer stated its LTM-CI is optimized for small components meeting. 

Compact automation will be important for finish customers that wish to automate however don’t have the area for a big system. As well as, these compact methods can excel at dealing with small parts. STIWA designed its system for merchandise with a spatial diagonal of as much as 30 mm (1.1 in.). 

“A buyer within the west of Austria produces dampers for a widely known furnishings retailer that wants tens of millions of those components yearly,” stated Roland Schiermayr, head of the Automation Analysis and Improvement Division at STIWA.

“The corporate wished to purchase a brand new manufacturing machine,” he stated. “The prevailing machine was 10 m [32.8 ft.] lengthy – for the manufacturing of small parts measuring just some centimeters in size, this was merely an excessive amount of for the manufacturing web site in a slim Alpine valley. This was the impetus for us to totally make the most of all miniaturization prospects.”

For its compact automation methods, the firm makes use of linear and rotating micromotors from FAULHABER to carry out key duties.


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Contained in the LTM-CI

Computerized actions inside the LTM-CI occur so shortly that the human eye can barely sustain with the person automation steps. First, the system feeds particular person components from storage containers and separates them utilizing a shaker. It then accurately positions these components on a conveyor belt so it’s prepared for the subsequent manufacturing step. 

Subsequent, the system transports the parts to the respective stations. There, delicate grippers decide them up and be a part of them collectively, or course of them otherwise. STIWA compares the actions of the system to a dance, combining the graceful transport of conveyor belts with the fast actions of grippers. 

This complete system, relying on the configuration and tools wanted, is simply 3 to 4 m (9.8 to 13.1 ft.) lengthy. STIWA made the bases of the system from a rigidly linked transport system, and the opposite system parts rely on the wants and specs of the client. 

“We will combine as much as 22 operate modules, every measuring 90 mm [3.5 in.] in width, for various work steps,” stated Christian Mersnik, who was concerned in growth from Day 1. “These features embrace, for instance, decide and place, laser welding with as much as 5 levels of freedom, screw insertion, press-in operations, labeling, in addition to testing and measuring processes.”

STIWA compact automation will get buyer curiosity

STIWA stated that its compact automation system has been effectively acquired by clients. Its clients respect the uniform, clean actions of the system. In addition they say that these actions don’t include impacts or vibrations, which ensures a steady course of. 

FAULHABER's BX4 brushless motor series.

The BX4 brushless motor sequence. | Supply: FAULHABER

The corporate stated the LTM-CI can scale back cycle occasions to nearly simply half a second, which brings a big leap in productiveness. STIWA famous that the drives used within the FAULHABER actuators make a serious contribution to the graceful motion of the machine and its excessive pace. 

The LTM-CI makes use of the LM 1247 linear actuator motor from FAULHABER. This actuator performs its process at as much as 20 factors within the system, together with stopper models and grippers. STIWA claimed that one explicit power of the FAULHABER linear motors is its excessive pace. At simply 12.5 mm (0.4 in.) vast and 19.1 mm (0.7 in.) excessive, the drive can produce a steady pressure of three.6 Newtons. 

The system additionally makes use of FAULHABER’s brushless BX4 2250 sequence of motors. Within the portal dealing with of the compact automation, this motor drives the swivel models that transfer the instruments or parts to a selected place. 

“At this level within the system, we require an especially excessive degree of precision and repeatability,” Mersnik stated. “That is why it was an necessary argument for us that FAULHABER was in a position to ship this motor with an identical multiturn absolute encoder. The alerts from this encoder are crucial to realize the excessive manufacturing high quality and for high quality assurance.”

STIWA ensures its compact automation clients fault-free operation of a minimum of 60 million strokes. This quantity needs to be achieved by all of the shifting components inside the system, which is another excuse why the corporate picked FAULHABER as its accomplice. 

“We topic our personal components in addition to moreover bought parts to endurance assessments,” Schiermayr stated. “In these assessments, we try to destroy the components via put on and unfavorable situations. Solely these components that survive the endurance assessments are put in within the machines.”

“The motors from FAULHABER have proven that they will meet such excessive necessities,” he added. “They assist us to realize our personal peak values with minimal area necessities and the shortest cycle occasions.”

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