This is how to choose the ideal motor for your gripper application – including expert knowledge and innovative solutions.
What advantages do torque-controlled motors offer in robot grippers?
Torque-controlled motors allow for a precise adjustment of gripping force. This minimizes damage to sensitive components, reduces scrap and increases flexibility,, as different objects can be handled with the same gripper. ATEK Drive Solutions assists you in selecting the optimal solution.
Which motor types are suitable for torque-controlled grippers and what does ATEK offer?
High-performance servo motors are suitable for torque-controlled grippers, often in combination with precision gearboxes, as well as specialized, oft in Kombination mit Präzisionsgetrieben, sowie spezialisierte Torque Motors for high holding forces. ATEK Drive Solutions is a systems provider and combines servo motors, gear boxes, and brakes into customized drive solutions for your gripping application.
How does ATEK Drive Solutions support the integration of torque-controlled motors?
ATEK offers comprehensive technical consulting and develops customized special solutions.. Through our modular system concept and a large inventory, we can ensure fast delivery times even for complex drive systems for robot grippers.
Why is sensor technology so important for torque-controlled robot grippers?
Integrated torque sensors, such as those from Sensodrive, measure the actual applied force in real time. This allows for a highly precise control of torque, which is essential for handling sensitive objects and for safe human-robot collaboration (HRC). Sensodrive sensors provide hysteresis freedom and EMC compliance..
Are there special solutions for use in collaborative robots (cobots)?
Yes, drives with integrated safety functions and certified torque measurement are crucial for cobots. SensoJoints from Sensodrive are designed as plug & play drive units that meet safety standards such as ISO/TS 15066 and offer functions like Safe Torque Off (STO) und Safely Limited Torque (SLT). bieten.
What criteria do I use to select the appropriate torque-controlled motor?
Important criteria are the required torque range (e.g., 2.5 Nm to 1000 Nm with Sensodrive sensors), the resolution of the sensor (often 16 Bit), the communication interface (e.g., BiSS C, EtherCAT®), the size and weight as well as the safety requirements of your application. ATEK is happy to advise you on this.
What are SensoJoints and when are they a good choice for robot grippers?
SensoJoints are sensitive, torque-controlled complete drives, which integrate torque sensors, motors, gear boxes (often HarmonicDrive®), and control electronics. They are a good choice when short development times and easy integration (plug & play) und pre-certified safety for HRC applications are required.
Can ATEK also develop completely custom drive solutions for special robot grippers?
Yes, a core competency of ATEK Drive Solutions is the development of customized special solutions, even in small series. We combine our experience in gearbox manufacturing and brakes with our expertise in servo motors to create optimal drive systems for your unique gripper requirements. The use of
Der Einsatz von torque-controlled motors in robot grippers allows for a precise force control, which can significantly reduce product scrap – in some applications by several percentage points – and increase the – und die flexibility in production..
ATEK Drive Solutions offers comprehensive, often a systems provider customized drive solutions kundenspezifische Antriebslösungen (servo motors, gear boxes, brakes) for robot grippers, which ensure quick delivery times through a modular system concept and a high variety of options. Advanced sensors and integrated safety features, such as those found in solutions from partners like Sensodrive (e.g., SensoJoints with
Fortschrittliche Sensorik und integrierte Sicherheitsfunktionen, wie sie in Lösungen von Partnern wie Sensodrive (z.B. SensoJoints mit SIL3/PLe certification), are crucial for modern HRC applications and enable a more efficient and safer human-robot collaboration..Discover the world of torque-controlled motors for robot grippers: from basics to selection criteria to the latest technological developments. Optimize your production processes with ATEK Drive Solutions!
Robot grippers that operate precisely and reliably are the be-all and end-all of efficient production processes. Torque-controlled motors play a crucial role in this. Are you looking for the perfect solution for your application? Contact our experts now!
Do you need assistance in selecting the right torque-controlled motor for your robot gripper?
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Understand: Master the role of torque-controlled motors in robot grippers.
Torque-controlled motors allow robot grippers a precise adjustment of gripping force, reduce scrap with sensitive objects, and enhance product quality. Important for this are intelligent control and thoughtful system integration. The dynamic force adjustment allows for flexible handling of various objects (from glass vials to metal parts) with just one gripper, showcasing the versatility of drives for robot grippers. See servo motors., Robotics industry solutions..
The principle of precise force.
The exact dosing of force is the main advantage that a torque-controlled motor offers for robot grippers. In the packaging industry, for example, various products can be handled with a single gripping system, significantly reducing setup times. Gear boxes with servo motors support this capability.
Why torque control?
The continuous adjustment of gripping force by a torque-controlled motor protects the products to be handled, optimizes processes (for example in electronics assembly), prevents defects, and thus lowers operating costs.Analyze: Utilize core principles of torque control for optimal gripper performance.
Effective torque control is more important for robot grippers and their optimal performance than mere maximum force. A und deren optimale Performance wichtiger als die reine Maximalkraft. Ein torque-controlled motor offers for robot grippers. is key here, as sensors and algorithms adjust the motor torque to the respective load and position in milliseconds – a crucial factor, especially with soft or fragile objects. This dynamic adjustment ensures versatility and safety in operation. See high-torque servo gear motors..
Torque as a key parameter.
The precise torque value delivered by a torque-controlled drive provides the exact required force (less for light, more for heavy parts) and thus avoids material damage to the grasped objects.
Functioning of torque control.
Sensors detect the applied loads; based on this, algorithms control the motor current to achieve the target torque. This ensures a constant and adequate gripping force in and their optimal performance than mere maximum force. A. For precise positioning tasks, see also: servo motors with low cogging torque..
Distinction from standard motors.
Unlike standard motors, which are often primarily optimized for speed or position, torque-controlled motors focus on precise force control. This makes them ideal for sensitive tasks, such as closing containers with defined torque.Select: Identify suitable motor technologies and designs for specific gripping tasks.
Choosing the right motor technology is crucial when seeking an optimal torque-controlled motor offers for robot grippers. solution. Special windings, such as those used in the Faulhaber BXT series (up to 134 mNm torque at only 22mm diameter and 14mm length), and advanced sensors (like those from Sensodrive) significantly enhance the overall performance of the gripping system. Sensodrive sensors offer outstanding precision and robustness. Play-free planetary gearboxes additionally support the required precision.
- The choice of motor technology is a critical factor for the performance of the robot gripper and the efficiency of the entire application.
- Special windings, such as those in the Faulhaber BXT series, enable high torques while maintaining minimal length, ideal for use in tight space requirements of robot gripping systems..
- Advanced sensors, such as those from Sensodrive, are characterized by hysteresis freedom, EMC compliance, and fast data transmission (e.g., via BiSS C) for real-time control.
- Stepper motors with gear boxes provide a cost-effective solution for and their optimal performance than mere maximum force. A handling lighter loads (typically under 20 kg); however, they require proper control.
- Torque motors are specialists for applications that require high holding forces at standstill without the risk of overheating, adapting their speed to the respective load. Such a motor for robot grippers is often the first choice for holding applications.
- Play-free planetary gearboxes play an important role in supporting the necessary precision in demanding gripping tasks, especially when it comes to a torque-controlled drive. Faulhaber BXT series: Compact powerhouses.
Faulhaber BXT Serie: Kompakte Kraftpakete
Thanks to innovative winding technology, these motors deliver high torques at minimal length (a 22mm motor is only 14mm long), ideal for tight spaces in robot grippers. Available variants are BXT H (cased) and BXT R (uncased).
Sensodrive: Pioneer in torque sensor technology.
Sensors from Sensodrive offer hysteresis-free operation, EMC compliance, and rapid data transmission (e.g., BiSS C), enabling precise real-time control. ATEK is happy to advise you on suitable brushless servo motors for your torque-controlled motor for robotic grippers.
Stepper motors: Precise control for light loads
For and their optimal performance than mere maximum force. A, handling loads under 20 kg, stepper motors with gear boxes are a cost-effective option. Proper control (e.g., using L298 driver) is necessary.
Torque motors: Specialists for high holding force
These motors deliver high torque at standstill without overheating. Their speed adapts flexibly to the load. SESAME offers models with integrated voltage regulators that are well-suited for gripping applications in robotics are suitable.Applications: Harnessing potentials of torque-controlled grippers in industry and collaboration
Torque-controlled motors are central to safe interaction with cobots and precise handling of delicate components, for example, in electronics manufacturing. When such drives are used in robotic grippers , TÜV-certified sensor concepts (like those from Sensodrive for ISO/TS 15066) play a crucial role in human-robot collaboration (HRC) and even allow tactile quality control (e.g., in connectors). High-precision bevel gear boxes can further optimize the performance of such systems.
- Medical technology: Vibration damping, gentle sample handling with force-controlled robotic grippers.
- Industrial robots: HRC, complex assembly tasks with force-controlled gripping systems.
- General industry: Exoskeletons, winding machines with precise force control.
- Packaging industry: Safe and gentle gripping of a wide range of products.
Assembly and handling of sensitive components
A sensitive force dosing in the millinewton range, as enabled by a torque-controlled motor for robotic grippers , is essential here, especially when handling electronic chips or glass vials. Compact inline servo gear motor systems are excellently suited for pick-and-place applications.
Collaborative robotics (cobots)
In collaborative robotics, torque-controlled motors help reduce collision forces and thus minimize the risk of injury to humans. The TÜV-certified sensor concept from Sensodrive supports the ISO/TS 15066 standard and is an important building block for safe and their optimal performance than mere maximum force. A in HRC applications.Integrate: Consider key selection criteria for successful system integration
The selection criteria for a torque-controlled motor for robotic grippers include the required torque range, sensor resolution, communication interfaces (such as BiSS C, EtherCAT®), as well as size and weight of the components. Seamless integration of motor and sensor is key to optimal performance of the gripping system. Moreover, safety aspects (such as SIL3/PLe, STO, SLS for SensoJoints) are particularly important for cobot applications and can significantly reduce certification efforts. Servo-ready gear motor systems often provide complete solutions here.
- Define the required torque range for your and their optimal performance than mere maximum force. A precisely to avoid over- or under-sizing the drive with torque control (Sensodrive offers solutions from 2.5 to 1000 Nm, for example).
- Pay attention to a high sensor resolution (e.g., 16 bit), as this is crucial for the accuracy of the force control in the and their optimal performance than mere maximum force. A .
- Select suitable communication interfaces (such as BiSS C, EtherCAT®), which support both system dynamics and easy integration of the motor for the robotic gripper .
- Consider the size and weight of the components to minimize the inertia of the robot gripper and enable dynamic movements (e.g., the compact Faulhaber BXT motors).
- Ensure seamless integration of torque-controlled motor and sensor, as this is a fundamental key to the overall performance of the system and the robot gripper .
- Integrate necessary safety aspects (SIL3/PLe, STO, SLS, as with the SensoJoints from Sensodrive), especially in cobot applications, to reduce the certification effort for the entire and their optimal performance than mere maximum force. A .
- Check the use of servo-ready gear motor systems, which can simplify the integration of a torque-controlled motor for robotic grippers. Torque range and resolution
Drehmomentbereich und Auflösung
An appropriate torque range (e.g., Sensodrive offers 2.5-1000 Nm) and a high resolution (typically 16 bit) are critical for the precision that a torque-controlled motor in a robotic gripper must deliver and avoid costly over-sizing.
Interfaces and communication
Modern communication interfaces such as BiSS C or EtherCAT® significantly influence the system dynamics and the simplicity of integrating the drive for the robotic gripper. Sensodrive was, for example, a first supplier of the BiSS C interface in the field of torque sensing.
Size and weight
Compact and lightweight components, such as the Faulhaber BXT motors, minimize the inertia of the robot gripper and thus enable high-dynamic movements.Anticipate: Recognize future developments and trends in torque control for robotics
Future trends in torque-controlled motors for robotic grippers include advancing miniaturization, even higher energy efficiency, more precise algorithms, and the increased integration of artificial intelligence (AI) for adaptive control and predictive maintenance strategies. Plug & play solutions, such as the pre-certified SensoJoints from Sensodrive (whose full certification is expected for Q1/2025), will further simplify the integration of drive solutions for robotic grippers and thus reduce development times and costs.
Increasing precision and efficiency
Optimized materials, innovative winding technologies (like those in the Faulhaber BXT series with up to 88% efficiency), and advanced control electronics continuously enhance the precision and efficiency of torque-controlled drives for gripping applications in robotics.
Enhanced safety functions
Integrated and certified safety functions (beyond SIL3/PLe) will enable an even safer human-robot collaboration (HRC) with robot grippers possible. The SensoJoints from Sensodrive aim for full certification to facilitate use in safety-critical applications.
ATEK Drive Solutions offers comprehensive expertise and a wide range of products to help you achieve your automation goals. Contact us for comprehensive advice on selecting the optimal motor for your robotic gripper and your specific application.
