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Load balancing device for robot arm

A technology of load balancing and robotic arms, applied in the direction of manipulators, mechanical equipment, springs, etc., can solve problems such as the inability to meet the operation requirements of high-load robotic arms

Inactive Publication Date: 2020-03-06
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For the high-load robot arm, it needs to load more than 100 kilograms. Therefore, in terms of structural design, the structure of the robot arm is relatively heavy, and the horizontal extension of the robot arm is also long (about 3 meters). The moment caused by the load can be It can reach more than 10000Nm. However, the current motor and reducer used in the load balancing device of the shaft joint can only provide about 5000Nm, so it cannot meet the operation requirements of the high-load robot arm.

Method used

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  • Load balancing device for robot arm
  • Load balancing device for robot arm
  • Load balancing device for robot arm

Examples

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Embodiment Construction

[0053] The following examples are provided for detailed description, and the examples are only used as examples for illustration, and are not intended to limit the scope of protection of the present invention. The same / similar symbols are used to represent the same / similar components in the following description.

[0054] figure 1 and image 3 Schematic diagrams of the robot arm 110 at an initial position and a horizontally extended position are shown respectively. Please refer to figure 1 , the robotic arm 110 has an operating end 111 , a first joint 112 and a second joint 113 . The operating end 111 can be loaded with an object 10 , the first joint 112 is for example an elbow joint, and the second joint 113 is for example a shoulder joint. The resultant force of the structural self-weight of the robot arm 110 and the gravity of the object 10 is represented by a load W, which is located on a gravity axis. When the robot arm 110 is at the initial position of the vertical ...

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Abstract

The invention discloses a load balancing device for a robot arm, including a pneumatic cylinder and a piston rod. The pneumatic cylinder, used to store a gas, includes a first chamber, a second chamber and a communicating passage, wherein the communicating passage connects the first chamber and the second chamber. The piston rod has one end connected to the robot arm and the other end slidably disposed in the pneumatic cylinder. The piston rod adjusts the volume and the pressure of the gas in the first chamber and the second chamber according to a load, wherein the first chamber and the secondchamber are coaxially disposed in the axial direction of the pneumatic cylinder.

Description

technical field [0001] The present invention relates to a load balancing device for a mechanical arm, and in particular to a load balancing device with a passive pneumatic cylinder. Background technique [0002] For the high-load robot arm, it needs to load more than 100 kilograms. Therefore, in terms of structural design, the structure of the robot arm is relatively heavy, and the horizontal extension of the robot arm is also long (about 3 meters). The moment caused by the load can be It can reach more than 10000Nm. However, the current motor and reducer used in the load balancing device of the shaft joint can only provide about 5000Nm, so it cannot meet the operation requirements of the high-load robot arm. Therefore, it is necessary to propose a load balancing device that can meet the operation requirements of a high-load mechanical arm. Contents of the invention [0003] The invention relates to a load balancing device for a mechanical arm, which has a double-cavity s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J19/00
CPCB25J19/0012F16F9/346Y10T74/20305
Inventor 宋家仲陈尚德朱证裕吴孟和陈俊皓
Owner IND TECH RES INST