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Multiple disc brakes for industrial robots and industrial robots comprising multiple disc brakes

A multi-disc brake and industrial robot technology, applied in the direction of brake type, axial brake, brake actuator, etc., can solve the problem of large brakes and achieve the effect of increasing the braking torque

Active Publication Date: 2019-09-13
ABB (SCHWEIZ) AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Electromagnetically actuated disc brakes have traditionally been common in robotic arms, although these are often too large and heavy for small robotic systems

Method used

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  • Multiple disc brakes for industrial robots and industrial robots comprising multiple disc brakes
  • Multiple disc brakes for industrial robots and industrial robots comprising multiple disc brakes
  • Multiple disc brakes for industrial robots and industrial robots comprising multiple disc brakes

Examples

Experimental program
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Effect test

Embodiment Construction

[0030] exist figure 1 In , an industrial robot 1 with multiple degrees of freedom (DOF) is shown. The robot 1 has six axes 3 and each joint of the axes is driven by an actuator 2 . In the case of direct drive, the linkage is directly driven by the actuator 2 . Three commonly used actuators for robots are hydraulic, pneumatic or electromagnetic. However, the most common type is the electromagnetic actuator, where there are various types of motors such as stepper motors, permanent magnet direct current (DC) motors, and brushless motors. The transmission transmits mechanical power from the actuator to the joint.

[0031] In the robot 1 the first axis 3A is located at the robot base and allows the robot 1 to rotate from side to side. The first actuator 2A drives the first axis 3A. The second axis 3B allows the lower arm of the robot 1 to extend forward and backward. The second actuator 2B drives the second axis 3B. The third axis 3C extends the vertical range of the robot. ...

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PUM

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Abstract

A multiple disc brake (10) for an industrial robot (1 ), wherein the multiple disc brake (10) includes a hub (4). The multiple disc brake (10) includes at least one friction disc (5) arranged to the hub (4) such that it rotates with the motion of the hub (4), and a braking disc (6) arranged freely rotatable to the hub (4). The braking disc (6) has at least one brake protrusion (6A, 6B) protruding in a radial direction of the braking disc (6), and an actuating arrangement (9) including an actuator (13) and a stop member (14, 16). The actuating arrangement (9) is arranged to move the stop member (14, 16) such that the stop member (14, 16) and the at least one brake protrusion (6A, 6B) becomes engaged, whereby any rotational motion of the braking disc (6) is halted and a braking force is created by friction acting between the at least one friction disc (5) and the braking disc (6).

Description

technical field [0001] The present disclosure relates to the field of industrial robots and to a multi-disc brake for an actuator of an industrial robot. Background technique [0002] Intrinsic safety is an important design requirement for industrial robots. The momentum generated by the moment and weight of an industrial robot can be hazardous to people around it, and it is important to isolate people from the robot's work area and ensure that movement can be easily stopped in the event of power failure and emergency stop. [0003] Industrial robots are known as autonomously controlled reprogrammable multipurpose manipulators with multiple degrees of freedom and the ability to perform work tasks independently. It may have several axes, each powered by an actuator such as an electric motor. The movement of each motor is stopped by actuating a brake that resists the movement of the motor. Electromagnetically actuated disc brakes have traditionally been common in robotic ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D55/36B25J9/00B25J13/00B25J17/00F16D63/00F16D65/18B25J19/00
Inventor A·阿玛德T·诺科维克A·特兰加德
Owner ABB (SCHWEIZ) AG