A small arm of an industrial robot and the industrial robot
A technology of industrial robots and arm barrels, applied in the direction of claw arms, manipulators, manufacturing tools, etc., can solve the problems of long transmission shaft structure, poor stability of transmission shaft structure, disturbance, etc.
Active Publication Date: 2021-03-12
合肥欣奕华智能机器股份有限公司
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Problems solved by technology
[0003] For the transmission structure inside the forearm of the six-axis industrial robot, usually two transmission shafts arranged coaxially transmit power from the elbow to the wrist. The elbow of the industrial robot is equipped with a motor corresponding to the two transmission shafts. The transmission shaft is driven to rotate through the internal reduction gear, and the transmission shaft drives the wrist to rotate or nod. However, due to the long structure of the transmission shaft and no support in the small arm tube, the structural stability of the transmission shaft is poor. It is not easy to ensure the transmission accuracy, and it is easy to cause large disturbances during high-speed rotation
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[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0034] An embodiment of the present invention provides a small arm of an industrial robot. The small arm of the industrial robot includes a small arm barrel and two transmission shafts arranged in the small arm barrel. The two transmission shafts are respectively the first transmission shaft and the the second propeller shaft on the first propeller shaft; wherein,
[0035] The first transmission shaft and the second transmission shaft an...
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The present invention relates to the field of industrial robots, in particular to a small arm of an industrial robot and an industrial robot. The small arm of the industrial robot includes a small arm barrel and two transmission shafts arranged in the small arm barrel. The two transmission shafts are respectively the first A transmission shaft and a second transmission shaft sleeved on the first transmission shaft; wherein, the first transmission shaft and the second transmission shaft and between the second transmission shaft and the small arm tube are respectively rotatably connected by at least one bearing, each The pair of bearings are respectively arranged at both ends of the corresponding transmission shaft; fastening structures are respectively provided between the first transmission shaft and the second transmission shaft and between the second transmission shaft and the small arm barrel, and the fastening structures are used for corresponding Preload at least one bearing of the industrial robot; the first transmission shaft is respectively connected with the elbow and wrist of the industrial robot, and is used to drive the wrist to perform rotary motion; the second transmission shaft is respectively connected with the elbow and wrist of the industrial robot, and used To drive the wrist to do a nodding motion.
Description
technical field [0001] The invention relates to the field of industrial robots, in particular to a small arm of an industrial robot and the industrial robot. Background technique [0002] An industrial robot is a multi-joint manipulator or a multi-degree-of-freedom mechanical system for the industrial field. It can repeatedly perform work through learning and inheritance. It is a machine that realizes various functions by its own power and control capabilities. Among them, the six-axis Industrial robots can move freely in three-dimensional space, and can accurately and quickly perform a large number of repetitive tasks such as handling, welding, and spraying. [0003] For the transmission structure inside the forearm of the six-axis industrial robot, usually two transmission shafts arranged coaxially transmit power from the elbow to the wrist. The elbow of the industrial robot is equipped with a motor corresponding to the two transmission shafts. The transmission shaft is d...
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IPC IPC(8): B25J18/00
Inventor 石斌陆伟梁镐俊黄湖林
Owner 合肥欣奕华智能机器股份有限公司