Servo Motors

A Comprehensive Guide to DC Servo Motors What is a DC Servo Motor? A DC servo motor is a type of electrical device designed to precisely control position, velocity, and acceleration. It consists of a direct current (DC) motor coupled with a control circuit and a feedback mechanism such as an encoder. This setup enables the continuous adjustment of the motor's state, making it a cornerstone in applications that demand precision and dynamic performance. How Does a DC Servo Motor Operate? The primary function of a DC servo motor is to convert electrical energy into mechanical energy. Its control circuit interprets input signals (usually indicating the desired velocity or position), adjusting the current or voltage supplied to the motor accordingly. This feedback system constantly monitors the motor's state, relaying data back to the control circuit to align the motor's actual state with the desired parameters, ensuring higher accuracy and fine-tuned control. What are the Different Types of Servo Motors? Servo motors are generally categorized into three types: AC servo motors, DC servo motors, and brushless DC servo motors. The most used servo motor is the brushless DC variant because of its high efficiency and consistent performance coupled with lower maintenance requirements compared to brushed types. How to Control and Run a DC Servo Motor? Controlling a DC servo motor involves using a specialized controller which processes signals from a microcontroller or computer system to manage the motor's speed or position. Pulse Width Modulation (PWM) is a common technique used, where the width of the control pulses is varied to control the motor's speed effectively. Sophisticated algorithms can further refine motor control, ensuring dynamic and responsive operation. How Can the Speed of a DC Servo Motor be Controlled? The speed is managed through the variation of input signals, typically modulating the width of control pulses to influence the motor's operational speed precisely. This approach ensures seamless integration into various applications requiring different speed ranges and control dynamics. Click the link below to read the full article: https://lnkd.in/eG43qD-J #servomotor #servosystem #maxonmotor #dcservomotor

Kollmorgen's Robot-Ready Frameless Servo Motors Kollmorgen has introduced the new TBM2G series of frameless servo motors, introducing features that simplify the design of collaborative, surgical, aerospace and defense and other robots while delivering optimal performance in a lighter, more compact package. These new motors will complement Kollmorgen’s existing TBM and KBM series of frameless motors. Resulting from several years of research, testing and customer feedback, the TBM2G series offers high-performance torque in an extremely compact electromagnetic package. These next-generation motors enable robots with lower joint weight, higher load-carrying capacity, improved energy efficiency, lower thermal rise, and faster, smoother movements. Frameless torque motors typically deliver their best performance at low speeds, but suffer at higher speeds. TBM2G motors remove this limitation through advanced windings and materials that deliver industry-leading power, torque and efficiency consistently across a wide speed range. TBM2G motors also remove the sizing limitation that engineers often face when using off-the-shelf strain wave gearing, also known in the robotics market as harmonic gearing. The new TBM2G series motors are sized for a perfect fit with readily available strain wave systems, eliminating the need for extensive customizations that can increase engineering time and cost while potentially leading to supply and quality issues when robots enter full production. The TBM2G series is available in seven frame sizes with three stack lengths each—a total of 21 standard motors that can be integrated directly into robotic joints and similar embedded equipment. Typical applications are collaborative robots in the 3 to 15 kg range, powered at 48 Vdc and below. These motors are designed to perform at high speeds without exceeding the 80°C limit typically needed to safeguard humans working in proximity to cobots and to prevent degradation of grease and electronic components. And they’re available with thermal sensor options to meet the requirements of drives and control systems used in the cobot market. For more information, visit https://lnkd.in/eBkBwJUp #tbm2g #framelessmotor #cobotservomotor #robotservomotor

Understanding the Linear Shaft Servomotor Nippon Pulse’s Linear Shaft Motor is a brushless, high-precision direct drive linear servo motor with a tubular design. The motor consists of a magnetic shaft and coil assembly (forcer), and is driven and controlled by the flow of current. The Linear Shaft Motor can replace ball-screws, pneumatics, U-shaped motors and other linear motion systems. Design Concepts of the Linear Shaft Motor - Simple: Two parts and a non-critical air gap - Non-Contact: No wearing and maintenance free - High Precision: Ironless design and all the magnetic flux is used Linear Shaft Motor Specification Overview -Variety of shaft diameters, ranging from 4mm to 100mm -Stroke lengths of 20mm to 4.6M -Achievable peak force of 2340N -Maximum continuous force of 585N Advantages of Linear Shaft Motors The Linear Shaft Motor is a simple, high-efficiency, high-precision motor that requires no maintenance over its lifetime. The servo motor consists of only two parts: a magnetic shaft, and a “forcer” of wound coils. The Linear Shaft Motor offers ultra-high precision because it has no iron in the forcer or shaft, giving you the precision and zero cogging expected in a coreless design while providing the stiffness expected in an iron-core motor. Because the forcer coil completely wraps around the shaft’s internal magnets, all the motor’s magnetic flux is efficiently used. This allows for a 0.5mm to 2.5mm nominal annular air gap between the shaft and forcer. This air gap is non-critical, meaning there is no variation in force as the gap changes over the stroke length of the device. Nippon Pulse’s Linear Shaft Motor can be used in a variety of applications, including pick-and-place machines and dispensing machines. Applications that require smooth, precise movements and high accuracy will benefit from the Linear Shaft Motor. If your application has varying force requirements or low-power/high-efficiency requirements, contact an applications engineer to learn how your application can benefit from the Linear Shaft Motor servomotor. Applications of the Linear Shaft Motor (LSM) - High-speed pick-and-place machines - High-accuracy pick-and-place or dispensing applications - Scanners that need smooth and precise movements - Long-life and low-maintenance expectations - Applications that require low power and high efficiency More information on the Linear Shaft Motor Family from Nippon Pulse can be viewed on the NPM Linear Shaft Motor Catalog below. https://lnkd.in/ezXmPCSC #servomotor #linearshaftmotor #linearmotor #dcmotor

Hygienic Servo motors reduce risk of food recall, increase reliability in wash-down environments, & reduce cleaning time Kollmorgen stainless steel AKMH Motors are designed specifically to address the Food Safety Modernization Act (FSMA); reduce the risk of costly food recalls and provide years of reliable service and minimize machine cleaning time in food, beverage, packaging, medical, pharmaceutical, and converting applications. The AKMH is designed to meet the toughest hygienic requirements at a time of evoving food safety regulation. As cleaning procedures change AKMH will still an excellent solution. The AKMH servo motor is constructed to provide long-life and trouble free operation, even with daily exposure to chemical cleaning agents and high-pressure wash-downs.The use of highly corrosion resistant 316L stainless steel along with purposely designed thermoplastic elastomer cable jacket allow both motor and cable to withstand high pressure spray or low pressure hose down without restrictions. An innovative vented cable design prevents ingress of water or cleaning agents into the motor during heating and cooling cycles and extend the life of the motor even in the toughest environments. The AKMH requires no additional protection and can be sanitized without covering or removal from the machine. The AKMH conforms to EHEDG, NSF, BISSC, and 3-A design guidelines. AKMH motors can be combined with award winning AKD drives to provide complete and optimized systems. AKD drives provide industry leading performance and a single cable design that reduces the number of cables in the wash-down area by 50%. In addition the AKD-N decentralized drive option can further reduce cabling and cabinet size by allowing the drives to be located outside the cabinet in areas adjacent to the wash-down zone. These drive options combined with 19 different motor sizes will provide an optimized solution to almost any motion application. Key benefits of AKMH clean design: - Reduces risk of food recall - Increases reliability in wash-down applications - Reduces cleaning time Information on the AKMH motors can be found at the link below. https://lnkd.in/ewSaT69w #washdownmotor #stainlesssteelmotor #servomotor #hygienicservomotor #akmhmotor

Sterilizable Motors for Medical Technology For the use in high speed medical applications of up to 90’000 rpm, maxon UK & Ireland motor extends the product range by two sterilizable 50 Watt brushless servo motors; the “EC Size 5” and “EC 13”. Stand-alone, or as a motor/gear combination the motors stand out by high power, extremely low-noise and low-vibration operation, marginal heat generation and minimal size – welcome characteristics particularly in medical handheld power tools. Both motors were born from their 30 Watt relatives but offer an additional 50% of torque with only 11 mm of extra length. EC 13 and EC Size 5 are of identical design and possess equal “personal qualities”. They deliver torques of up to 8 mNm with an efficiency of 90%. As far as their “outward appearance” is concerned, they perfectly match their respective field of application: Motor and gearhead of the Size 5 variant possess a ½ inch outside diameter and a shaft of Ø0.125 inch. The 13 mm variant comes with an outer diameter of 13 mm, an Ø3 mm shaft and a flange with 3 face side threads. Both motors are characterized by their similarities: A special compact design particularly adapted for medical use, a very high nominal speed, quiet running, minimized heat generation and sterilizability in the autoclave. The motors are available with Hall sensors or sensorless and with three different windings. The gearheads come in reductions of 5:1 to 125:1, with or without output end shaft seal. For information please visit us at: https://lnkd.in/e-MzeSti #maxonmotor #sterilizable #servomotor #brushlessservomotor

Maxon Motors for Mars Rovers – Maxon Motors for Space Exploration Research on Mars has advanced tremendously in the last 20+ years. Precision drives by maxon motors have made an important contribution in these advancements. In four missions by the US space authority NASA, products of the Swiss company have reached the surface of Mars. Mars Exploration Mars rovers explore the barren landscape of the planet, investigate rock samples, and take breathtaking photos. The rovers of note include Sojourner, Spirit and Opportunity, Curiosity, and Phoenix. The First Successful Mars Rover: Sojourner Sojourner was the first rover to land on Mars on July 4, 1997. It was small, weighing only 1.5 kg and equipped with six wheels. Sojourner roamed Mars for almost three months, sending back imagery and data. The vehicle was driven by electrical maxon DC motors with ironless windings installed in the wheels. These motors were used for steering as well as operation of scientific equipment. The Twin Mars Rovers: Spirit and Opportunity Spirit and Opportunity were twin rovers sent to Mars that were much larger than their predecessors, weighing around 185 kg each. Equipped with more advanced technology, they were able to take photos, brush and scrape rocks, with the sole mission to find evidence that there used to be water, and potentially life, on Mars. The expected service life for these two rovers was 3 months each. Spirit surpassed these expectations, roaming Mars and sending signals for 6 years before sending its last transmission. Opportunity was still operational at its 10-year anniversary, traveling more than 40 km. The maxon motors aboard Opportunity were also performing reliably at the 10-year mark. Each rover was equipped with 35 of these precision drives that drive the wheels, steering mechanisms, the RAT (rock abrasion tool), robotic arm, and the cameras. 8 additional maxon motors were used in the lander. In 2014, Opportunity successfully completed its mission, finding traces of water in rock formations in the Endeavor crater. Mars Rover: Phoenix The Phoenix rover landed on Mars in 2008 with the mission of scraping away soil at the surface. In doing so, Phoenix revealed bright water ice below. Maxon had supplied 9 RE series precision drives for Phoenix. These drives were designed with special ball bearings to deploy the solar panels on Phoenix. Mars Rover: Curiosity Curiosity was the biggest Mars rover at its time, weighing nearly 900 kb and being the size of a compact car. Curiosity landed on Mars in 2012 equipped with a robotic arm that can drill and deliver samples to an onboard laboratory. During its mission, Curiosity discovered elements such as hydrogen, carbon, and oxygen, the so-called building blocks of life. This discovery further emphasized the possibility of life having once existed on Mars. Link the link below for the complete article: https://lnkd.in/eKawEZGf

Comparing Eight Different Types of Servo Motors to Stepper Motors While servo motors are often chosen as a high-performance alternative to stepper motors, their variety and specialized applications are less commonly understood. This article aims to explain the differences between the types of servo motors, enhancing your understanding of when and why to use each type. Click the link below for the complete article. https://lnkd.in/e6u8pPdj #steppermotor #servomotor

Mechatronic Design in Advanced Robotics: Spotlight on maxon EC90fl Motors and AMC DZEANTU Servo Drives Robotics design has come a long way in the last decade, and at the heart of some of the most advanced robotic systems lies the intricately designed mechatronic subsystem. This subsystem played a pivotal role in defining robot interactions and capabilities for a 6-degree-of-freedom parallel robot designed at the Laboratoire Robotique at the Université Laval, Quebec, QC Canada. A standout feature of this design is its mechanical back-drivability. Achieving this involves careful tuning between a low reduction ratio and the effective load inertia based on a design choice that obviates the need for external force/torque sensors. The maxon EC90fl flat servo motors form a crucial part of this mechatronic subsystem. Recognized for their performance and durability, these motors empower the robot to tackle a spectrum of dynamic tasks with finesse. For the complete article, click the link below. https://lnkd.in/dmKMZ8Ce #maxon #servomotor #servodrive

Optimizing Servo Motor Selection for Consistent Load Holding In various contexts, the term 'stall' can carry diverse meanings. It's crucial to ensure its accurate application when sizing AC servo motors designed for continuous load holding. This white paper addresses these technical nuances and offers practical motor selection guidance to guarantee safe and dependable operation. Click the link below to access and download the white paper. https://lnkd.in/eJC3WY4D #servomotor #servomotors #loadholding #feedbacksystem

Linear Shaft Motor 50% More Efficient than Coreless Linear Servos Nippon Pulse’s Linear Shaft Motor is the first linear servomotor designed and constructed with the ultra high-precision market in mind, but also provides energy efficiency that is up to 50 percent better than competing coreless linear motors, a claim independently verified (see below). The simple design of the Linear Shaft Motor (it consists of only a forcer {coils} and shaft {magnet}), is one of the primary factors in its energy efficiency. Because the coils are completely wrapped around the magnets, 100 percent of created magnet flux cuts the coils at 90 degrees, which, as highlighted by Fleming’s left hand rule, is the optimal crossing vector in linear motion. The Linear Shaft Motor also reduces the amount of generated heat, and heat’s impact on the work point, which further increases energy efficiency. The decreased impact of heat also is a factor in the Linear Shaft Motor’s ability to achieve sub-micron resolution. Other factors improving the energy efficiency of the Linear Shaft Motor include the absense of cogging and Eddy currents, stiffness up to 100 percent better than competing coreless motors, and the lack of inherent air flow restrictions. An independent study conducted by the University of Virginia in October of 2010 confirms the Linear Shaft Motor is at least 50 percent more efficient than comparable u-shaped motors. https://lnkd.in/eSFEj67U #shaftmotor #servomotor # #motioncontrol #linearmotor #automation