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Mechanical arm failure protecting device

A fail-safe, robotic arm technology, used in manipulators, manufacturing tools, etc., can solve problems such as simple procedures, price, loss of control of robotic arms, accidents, etc., to improve essential reliability, achieve reliable protection, and improve reliability.

Inactive Publication Date: 2010-02-24
湖北三江航天红林探控有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the mechanical arm driven by the motor, when the driver fails or the output is interrupted due to other reasons, the inertia may cause the mechanical arm to lose control and drop rapidly, resulting in accidents
The current technology has little research on the power-off or overload protection of the manipulator, and most of the solutions are too simple or expensive to be practical.

Method used

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  • Mechanical arm failure protecting device

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Embodiment Construction

[0013] Such as figure 1 As shown, the first relay K1, the second relay K2, and the brake B1 form the main control circuit, and the first relay K1 and the second relay K2 are respectively solid state relays. The diode V1, the resistor R1, the MOS transistor V2, and the failure control logic are connected to form a failure mode control circuit. The first relay K1 is connected to the operation control signal of the manipulator, and the brake B1 is connected to the motor shaft of the joint of the manipulator. The collector of MOS transistor V2 is connected to high level, the emitter is connected to ground, and the base is connected to the failure control logic. The failure control logic receives the failure signals of the mechanical arm, including tracking failure, overvoltage, and overcurrent signals, and sends them after logic processing. to the base of the MOS transistor V2, and the second relay is connected to the collector of the MOS transistor.

[0014] The brake B1 is a p...

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Abstract

The invention relates to a mechanical arm failure protecting device which solves the problems that the prior mechanical arm power failure or overloading protection way is simple and has low reliability. The mechanical arm failure protecting device of the invention comprises a main control circuit and a failure mode control circuit, wherein the main control circuit is formed by connecting a first relay, a second relay and a band-type brake in series; the first relay is connected with an operation control signal of a mechanical arm; the second relay is connected with a failure mode control circuit; and the band-type brake is connected with a joint motor shaft of the mechanical arm. The invention has simple structure, small volume, high action reliability for different power failure types anduniversality, is easy to realize in electricity and structure, thoroughly solves the problem of power failure protection of a rotor and can be universally used for various mechanical arms of the rotors.

Description

technical field [0001] The invention belongs to a failure protection device for a multi-joint mechanical arm of a robot, in particular to an electromechanical composite failure protection device. Background technique [0002] Robotics is a comprehensive technology that has developed rapidly in the past ten years. It integrates the latest research results of various technologies such as mechanical engineering, automatic control, and artificial intelligence, and embodies the latest achievements in opto-mechanical integration. important issues of the war. [0003] As the most mature industrial robot technology in robot technology, it has a history of more than 40 years and has been widely used in the manufacturing industry. It is often used in welding, painting, loading and unloading and handling projects, which greatly improves labor efficiency and ensures product quality. . [0004] The robotic arm of a robot is an important actuator of an industrial robot and a component ...

Claims

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Application Information

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IPC IPC(8): B25J19/06
Inventor 易建天左久林尹强孙魁元邓丽君李建华
Owner 湖北三江航天红林探控有限公司
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