Braking device of robot arm

A technology of robot arm and braking device, which is applied in the field of braking device, can solve problems such as the inability to stabilize the robot arm to stop at a predetermined position, personnel safety, damage to the robot arm and foreign objects, etc.
CN110815288AActive Publication Date: 2020-02-21TECHMAN ROBOT INC
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
TECHMAN ROBOT INC
Publication Date
2020-02-21

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Abstract

The invention discloses a braking device of a robot arm. During braking, a combination plate is released to resist the elastic force of a return spring and slide along a guide pin, the combination plate carries a combination block to be close to a ratchet wheel, the combination block makes contact a lower-layer tooth train firstly, the rotating speed of the ratchet wheel is reduced, the combination block is clamped into a large-interval double-layer tooth train, the rotating speed of the ratchet wheel is continuously reduced to a low speed, and then a densely-spaced peripheral tooth train of the ratchet wheel is meshed with a gear tooth train of the combination plate, so that the robot arm is stopped.
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Description

technical field

[0001] The invention relates to a robot arm, in particular to a braking device for preventing the robot arm from moving when the motor of the robot arm stops rotating. Background technique

[0002] Factory automation uses robotic arms to automatically grab workpieces and move back and forth for assembly and manufacturing to improve production efficiency. The robot arm that moves back and forth, in addition to the driving module to provide power, also needs to rely on a stable and effective brake device to stop the robot arm at a predetermined position for operation.

[0003] The prior art U.S. Patent No. US8410732 uses a motor to rotate the rotating shaft of the robotic arm, and a brake device is installed to fix the friction ring on the rotating shaft, and the friction ring is covered with a ratchet. In addition, a solenoid valve clutch ratchet is provided to block the rotation of the ratchet and brake the motor to rotate, thereby stopping the movement of t...

Claims

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