Proposals for Assembly, Processing and Inspection Equipment

Unified Control for
Compact and High-Precision Equipment

Discover the benefits of adopting the αSTEP AZ Series for loader/unloaders, transfer processes and machining processes in equipment that handle multiple processes.

System Configuration
System Configuration 1
System Configuration 2
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  • Loader/Unloader

    By using a linear motor with an integrated stepper motor and a rack-and-pinion, high-load and high-precision vertical drive can be performed with ease.

    Easy Construction of a Compact and High-Strength Linear Motion Mechanisms

    The rack-and-pinion system L Series can easily convert the rotation of the motor into linear motion.
    Although the linear motion mechanism part is compact in design, it can transport a large load due to its high strength processing.

    Rack-and-Pinion System

    Operation of a Rack-and-Pinion System

    The gear (deceleration unit) receives the motor of the pinion shaft, and further transmits it from the pinion gear to the rack to convert it into linear motion.

    Quicker Design and Assembly Due to Fewer Required Components

    Because the rack-and-pinion system requires fewer components for its assembly, it reduces the time needed to design (including material selection, mechanism design and management of blueprints) and assembly, contributing to reducing the time it takes to complete the equipment. Both ends of the rack can also be fixed in place to allow the motor to run by itself. These can be installed in locations where the equipment height is restricted.

    Reduction in the number of components and spaces

    [Components Used]

    ① Fixed-side block ② Transportation table ③ Linear guide ④ Support-side block ⑤ Coupling case ⑥ Coupling ⑦ Fixed-side bearing ⑧ Ball screw ⑨ Support-side bearing

    Highly Accurate Positioning

    By utilizing the rack’s moving direction (vertical), a high level of repetitive positioning accuracy can be achieved, which enables highly accurate lifting and lowering of work pieces.

    Repetitive Positioning Accuracy (Reference value)

    This is the actual measurement value with a transportable mass. It will vary depending on the load, driving conditions and mounting direction.

    Product Name Rack Moving Method Repetitive Positioning Accuracy [mm]
    LM2 Parallel ±0.25
    LM2 Perpendicular ±0.07
    Highly Accurate Positioning

    Vertical operation is also simple. A model equipped with an electromagnetic brake is also available as a fall prevention measure.

    Allows Setting in Millimeter Units

    The αSTEP AZ Series has been adopted for the drive motor.
    By using the support software MEXE02, the travel amount can be set easily in millimeter units, allowing for a variety of linear motion applications.

    ▶Click here for free download of support software MEXE02
    Support software MEXE02
    [Minimum Step Angle]
    High-Speed Type: 0.01 mm
    Large Transportable Mass Type: 0.001 mm
    [Operating Speed Range]
    0~500 mm/s (High-speed type)
    0~90 mm/s (60 mm frame size for large transportable mass type)
    0~40 mm/s (80 mm frame size for large transportable mass type)

    What is αSTEP?

    αSTEP is a stepper motor-based motor with a unique control that hybridizes open loop control and closed loop control. αSTEP can automatically switch between open loop control and closed loop control depending on the situation while constantly monitoring the position, etc. In normal operations, it is driven in synchronization with commands using open loop control, and it exhibits high responsiveness. If, for example, it becomes overloaded and the position deviation is ±1.8° or higher, it switches to closed loop control like a servo motor and initiates corrective operation. Therefore, the motor can operate with high reliance.

    Reduces Sensor-Related Equipment Downtime Using Position Data from the ABZO Sensor

    The αSTEP AZ Series is equipped with a multi-rotation absolute encoder (ABZO Sensor) that can manage position data in real time. As it is an absolute system, external sensors such as a home sensor or limit sensor are not required. This reduces not only the material costs and wiring time but also problems related to severed lines and false detections, thereby contributing to overall cost reduction.

    Listed Products

    Rack-and-Pinion System L Series
    ▶Rack-and-Pinion System L Series (equipped with αSTEP AZ Series)

    The rack-and-pinion system is an electric actuator that combines a rack-and-pinion mechanism with a motor.
    The αSTEP AZ Series equipped with a battery-free ABZO Sensor is used in the motor unit, which allows for not only highly accurate positioning but also transportation of high loads of up to 100 kg.

    If you have any questions, please contact the Oriental Motor Customer Service Center.

  • Transfer Process

    By using a non-backlash geared stepper motor, large load inertia can be driven with high accuracy.

    Return-to-Home without External Sensors

    The αSTEP AZ Series is equipped with a battery-free mechanical absolute sensor (ABZO Sensor) at the rear of the motor. This renders time-consuming sensor return-to-home unnecessary. It will also protect against the effects of any external sensor malfunctions.

    High Accuracy/Non-Backlash

    Unlike gearheads that use common spur gears, a harmonic gearhead provides superior positioning accuracy not available in other types as a result of lack of backlash (play in gear meshing). The harmonic gear has many teeth in simultaneous meshing engagement, and it is designed to average out the effects of tooth pitch error and cumulative pitch error on rotation accuracy to ensure high positioning accuracy.

    Harmonic Geared 1
    Harmonic Geared 1 Output Shaft Angle
    Product Name Angular Transmission Accuracy [arcmin]
    AZM46-HS□ 1.5 (0.025˚)
    AZM98-HS□ (0.017˚)

    Driving Large Load Inertia

    Because harmonic gearheads are highly rigid, they are resistant to torsion and are less affected by load torque fluctuations compared to standard motors.
    This means that stable high positioning accuracy can be ensured even with large inertia or significant change in the load size.

    AZ Series AZM66AK-HS50
    Rotor Inertia
    NX Series NX620A
    Rotor Inertia
    405 × 10-7 [kg・m2] 162 × 10-7 [kg・m2]
    ×502×30 times ×502×50 times
    AZ Series AZM66AK-HS50
    Permissible Inertia
    NX Series NX620A + 50× in comparison
    Permissible Inertia
    30375 × 10-4 [kg・m2] 20250 × 10-4 [kg・m2]
    Large turning radius can be secured The turning radius is small

    Integration and Downsizing

    Oriental Motor’s geared motors do not require couplings as the teeth are cut directly on the motor's shaft, and therefore they require less space.

    Direct connection type (PS geared motors)

    Built-in Products

    Equipped with αSTEP AZ Series
    ▶Equipped with αSTEP AZ Series

    A battery-free absolute system is possible with the newly developed ABZO Sensor.
    For the driver, a pulse input type, I/O-controlled built-in positioning type and network compatible driver are available and can be selected based on the intended application.
    Oriental Motor offers a wide range of motors, including harmonic geared types.

    If you have any questions, please contact the Oriental Motor Customer Service Center.

  • Machining Process

    The use of a compact electric cylinder, which integrates a stepper motor and ball screw, allows the equipment to be more compact than a self-made mechanism.

    Ideal for Precise travel amounts and High-Accuracy Positioning

    By integrating the hollow rotor and ball screw nut without using couplings or other connecting parts, the rigidity of the components and the effect of backlash due to combinations are reduced.

    2 types of screws are available: ground ball screws and rolled ball screws.
    [Minimum Step Angle] 0.001 mm
    [Repetitive Positioning Accuracy]
    Ground Ball Screw: ±0.003 mm
    Rolled Ball Screw: ±0.01 mm
    Drive screw

    Compact Body Houses the Entire Linear Motion Mechanism

    Because connecting parts such as linear guides and couplings are no longer necessary, the equipment as a whole can be made smaller. The number of required parts is also significantly smaller compared to self-made mechanisms.

    Number of Components Configuration Image Components
    Self-Made Mechanism 9 Pieces Self-Made Mechanism ① Mounting plate ② Transportation table ③ Linear guide ④ Coupling ⑤ Fixed-side block ⑥ Ball screw ⑦ Fixed-side bearing ⑧ Support-side block ⑨ Support-side bearing
    When using DR Series Table Type 0 Pieces When using DR Series Table Type -

    Versatile Mounting Methods

    With various mounting methods available, allowing for flexible mounting options to suit small spaces.
    Through multiple combinations, an XYZ unit can be configured to create compact equipment.

    Mounting Example (Reference)

    Front Mounting

    Front Mounting

    Side Mounting

    Side Mounting

    Mounting with Flange
    (Excluding rod type)

    Mounting with Flange (Excluding rod type)

    Mounting with foot
    (Excluding DR20 rod type)

    Mounting with foot (Excluding DR20 rod type)

    The figure shows a table type.

    No External Sensors or Space for External Sensors Required

    When the αSTEP AZ Series is used, the compact body allows for smaller and lighter equipment.
    Because position data is managed mechanically by the ABZO Sensor, external sensors such as a home sensor and limit sensor are not required.
    Regular maintenance issues when using external sensors can also be avoided.

    With or without a home sensor

    Listed Products

    Compact Electric Cylinder DR Series
    ▶Compact Electric Cylinder DR Series (Equipped with αSTEP AZ Series)

    The compact body with integrated αSTEP and ball screw can contribute to reducing equipment size and space.
    Our leading-edge lightweight equipment provides improved design flexibility.
    Because the drive motor uses the αSTEP AZ Series and uses a battery-free absolute encoder (ABZO Sensor), it does not require any external sensors, such as a home sensor or a limit sensor.

    If you have any questions, please contact the Oriental Motor Customer Service Center.

  • Unified Control for A Wide Variety of Operations

    The αSTEP AZ Series offers a wide product line, such as motors, products equipped with electromagnetic brakes, geared types, and many more.
    Electric actuators that combine a motor and a mechanism components are also available.
    By using common shared motor and cables, the wiring and control are unified, thereby contributing to reduced equipment assembly time.

    For details on related products, please click on the links below.
    EZS Series

    Electric Linear Slides

    ▶EZS Series
    Electric Cylinders EAC Series

    Electric Cylinders

    ▶EAC Series
    DR Series

    Compact Electric Cylinders

    ▶DRS2 Series
    Hollow Rotary Actuators DGII Series

    Hollow Rotary Actuators

    ▶DGII Series
    L Series

    Rack-and-Pinion System

    ▶L Series
    Electric Gripper EH Series

    Electric Gripper

    ▶EH Series
    Benefits of Unification
    • Unified Wiring

      Because the I/O pin layout is the same, electrical design and wiring work can be performed efficiently.
    • Unified Control

      Since the control method is the same, different operations can be performed using the same method. For network control, the remote I/O and command codes are the same, which saves time and work creating a program.
    • Unified Maintenance Components

      Because they share the same motor, driver and cables, it is possible to reduce the maintenance components kept in stock. It will also save on management costs (inventory costs and storage space).

    Multi-Axis Driver

    The αSTEP AZ Series multi-axis drivers are available in 2-axis, 3-axis and 4-axis types.
    Because motor control of multiple units can be performed with a single driver, wiring to the host PLC can be simplified.

    4-Axis Type Multi-Axis Driver
    Comparison of the number of cables 1

    Main Power Supply Cable ×4
    Communication Cable ×4
    Cable for Motor ×8
    Total: 16 cables

    Comparison of the number of cables 2

    Main Power Supply Cable ×1
    Control Power Supply Cable ×1
    Communication Cable ×1
    Cable for Motor ×4
    Total: 7 cables

    No External Sensors Required

    Because the AZ Series can manage the position data in real time using its built-in mechanical absolute encoder (ABZO Sensor), the external sensors that are required for return-to-home can be eliminated. None of the 5 axes used in CG equipment require an external sensor. Not only does this reduce component costs and time spent wiring, it can also prevent sensor-related problems, such as false detection due to a severed line, which contributes to an overall reduction in costs.

    Reduced Return-To-Home Time

    The AZ Series is equipped with a battery-free absolute encoder (ABZO Sensor).
    It retains position data even if the power is interrupted by a power outage or an emergency stop during positioning operation. It can perform high-speed return-to-home without the use of an external sensor.

    ▶Click here for an informational video about battery-free absolute positioning Battery-free

    Built-in Products

    αSTEP AZ Series
    ▶αSTEP AZ Series

    It is even more reliable than closed loop control, and the higher efficiency significantly reduces the heat generated by the motor. It can perform high-frequency, short-distance positioning operations without having to worry about drive duty.

    αSTEP AZ Series Multi-Axis Driver
    ▶αSTEP AZ Series Multi-Axis Driver

    Products that are compatible with EtherCAT drive profile, MECHATROLINK-III and SSCNET III/H are available. This driver can be connected to an AZ Series DC input type motor, as well as to an electric actuator.

    If you have any questions, please contact the Oriental Motor Customer Service Center.

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* EtherCAT® is a patented technology licensed from Beckhoff Automation GmbH (Germany), and it is a registered trademark.

* EtherNet/IP™ is a trademark of ODVA.

* PROFINET is a trademark or registered trademark of PROFIBUS Nutzerorganisation e.V. (PNO).

* MECHATROLINK is a registered trademark of MECHATROLINK Members Association.

* SSCNETIII/H is a registered trademark of Mitsubishi Electric Corporation.

* Modbus (RTU) is a registered trademark of Schneider Automation Inc.