RM-EGB compact electric finger leads the disruptive revolution of "Electric replace Pneumatic", electric gripper's performance with pneumatic gripper's price. / Robustmotion

Date：

2023-08-11 21:18:00

For a long time, the precision of force control in pneumatic actuators has always been a bottleneck in the advancement of manufacturing processes. RM-EGB compact electric finger, with its higher precision in force control and stability, along with its highly competitive price, has brought tremendously good news to the automation industry.

——A comment from a senior engineer at a leading medical company.

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先来一波技术展示

BREAK-THROUGH

Revolution of "Electric replace Pneumatic" needs the impetus of disruptive technology

With the continuous development of intelligent manufacturing in China, pneumatic actuators are gradually unable to meet the growing demands of the process. At the same time, the advantages of electric actuators have become widely recognized. However, there are many obstacles to transition from the pneumatic to the electric. For many production enterprises that have been using pneumatic actuators for a long time, many automation devices on the existing production line have been running very stably. Therefore, it is a huge project for engineers to switch to the electric. The cost of "Electric replace Pneumatic" is quite high, not only because the price of electric actuators is generally higher than that of pneumatic actuators, but also because when replacing the original pneumatic actuators, customers often need to redesign related mechanisms and fixtures due to differences in size and hole positions. In addition, there are costs for debugging and learning.

"The RM-EGB is not just a product that has been made smaller or less expensive by reducing features, it represents a significant breakthrough in electric gripper technology. Technical engineers can see at a glance how extraordinary it is."

Disruption one

Patented control technology achieves cheaper substitution and transcendence

The design concept of RM-EGB is "Cheaper substitution and Transcendence". We aim to help customers who have been using the pneumatic actuators to transition smoothly to the "electric era" without any additional cost and enjoy the intelligence and convenience of electric actuators.

The RM-EGB is almost identical to pneumatic grippers of the same specifications regarding mounting hole positions and size. Based on this, the RM-EGB can achieve the same or even higher positioning accuracy and speed, with adjustable gripping force and position, covering a broader range of gripping force. It means 1 electric gripper can replace 2 to 3 pneumatic grippers with different cylinder diameters.

The size of the motor directly affects the product's performance. In general, the smaller the volume of a product, the smaller the volume of its internal motor tends to be, which in turn can lead to a corresponding decrease in performance, primarily reflected in terms of strength and speed.

Therefore, products of the same volume generally do not exceed a force output of 15 Newtons.

However, through a highly integrated design of the motor and drive, along with the ultimate optimization of algorithm performance, we have significantly enhanced and even extended the performance of the motor. Therefore, with the same product volume size, RM-EGB has achieved a higher degree of integration, and the performance is superior to similar products. The gripping force of RM-EGB is 2-3 times that of similar products, and it is also capable of maintaining continuous precision and stability in output force.

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Disruption two

No need for parameter adjustment by Modbus, directly compatible with I/O

Traditional electric grippers require connection to an upper computer by Modbus RTU or other bus systems, changing parameters to configure the direction of movement to adapt to the workpieces or switch between gripping and extending scenarios.

The RM-EGB series truly does not require any configuration. Through simple I/O control, it is fully compatible with both gripping/extending application scenarios, and provides complete gripped/drop detection function status outputs for both scenarios.

We can use three sets of input/output signals to combine four levels of gripping force, two levels of expansion force, and three absolute positioning points, meeting the customers' extreme demands for flexible production lines without pausing to connect to the upper computer to change parameters. In addition, simple gripping and extending control can be achieved with just a single input signal. It means the EGB can replace the original pneumatic control scheme directly without the need for any program modifications.

Disruption three

Redefining "Price and Performance"

"Low pricing does not indicate inferiority or cheapness. In fact, it is the high-end and innovative motion control technology that has enabled the creation of products that are both cost-effective and of superior quality."

More importantly, RM-EGB also has many intelligent features, including adaptive gripping, active signal feedback of the drop detection during gripping/extending.

10/20/30/40N, up to four preset output force options

You can choose the appropriate output force level according to different types and specifications of workpieces, greatly reducing the complexity of debugging.
Excellent motion control technology also ensures the accuracy and stability of different outputs.

0/2/4/6mm four positioning stroke options

Whether it is gripping small screws, small screw caps, or workpieces in slightly larger size, it can adapt to the grip without manual adjustment of the position.
Customized clamps can be used to grip workpieces of various specifications stably and reliably.
Multiple positioning stroke options are available, offering better flexibility and enabling easy execution of complex movements such as obstacle avoidance, gripping/extending, and more.

Plug and play, no complex circuit wiring required as the pneumatic

RM-EGB is equipped with installation holes in four sides, which can directly replace common pneumatic cylinder products on the market, saving on air compressors, filters, solenoid valves, throttle valves, pneumatic fingers, and other equipment.
It uses the same wiring method as the pneumatic cylinder, can plug and play to replace the pneumatic grippers directly and improve production efficiency.
(RM-EGB is used in the medical industry)

（RM-EGB 用于医疗行业）

Process Drop/Empty Grip Recognition

RM-EGB model is equipped with a feature that can detect the workpiece is not gripped properly or has fallen. When such a situation occurs, the RM-EGB can immediately provide feedback to the upper computer via I/O signals. This capability allows for a more timely response to production conditions, ensuring the quality of the manufacturing process.

Compatible with extending the workpieces, no reduction in features for drop/extending

RM-EGB can grip workpieces not only by outside gripping but also by extending. This means that it can adapt to more working scenarios and requirements.
When extending the workpieces by inside gripping, it also has the function of process drop/empty gripping recognition, ensuring the stable implementation of the workpieces extending process as well as the monitoring.

Only one I/O line is needed to meet gripping/extending function

A single I/O signal is all that's needed to switch between the gripping and extending functions, without the need for additional signal lines or controllers. This product simplifies the device's construction, layout, and debugging process, contributing to space and cost savings.
This is the convenience brought to customers by Robustmotion's motion control technology, which possesses fully independent intellectual property rights.

RM-EGB

Comparison with pneumatic gripper in the same specification

说明项	变	说明项	不变
出力	更大	尺寸、体积	一致
速度	更快	安装孔径	一致
性能	更丰富	行程	一致
夹持力	多档可选，免调试	位置精度	一致

It can be said that the RM-EGB compact electric finger is a disruptive and cost-effective electric actuator that can perfectly replace traditional pneumatic gripper, providing a more efficient solution for intelligent manufacturing. The product has been widely applied and recognized in various industries and fields, such as the battery industry, medical industry, food industry, consumer goods industry, etc. Robustmotion will continue to adhere to the corporate philosophy of "innovation, excellence, cooperation, and win-win", providing customers with more and better products and services.