Quick connecting mechanism used for robot modular joint

Abstract

The invention relates to a quick connecting mechanism used for a robot modular joint. The mechanism comprises a shell. The shell is matched with a flange. An internal conical surface is arranged on the shell in the circumferential direction. An external conical surface matched with the internal conical surface is arranged on the flange in the circumferential direction, and the taper of the external conical surface is the same as that of the internal conical surface. A plurality of fitting screws are arranged between the shell and the flange, are perpendicular to the generatrix direction of theinternal conical surface and provide pretightening force so that the internal conical surface and the external conical surface can be in tight fit. By adopting the matched conical surfaces and the screws for fastening, the problems of positioning and direct shear on the screws, arising from adopting of radial screws for connecting can be avoided, the problems of difficult mounting and low efficiency caused by connecting by means of axial screws can be solved, and the problem of a complex machining process caused by end tooth connecting can be avoided.

Description

technical field [0001] The invention relates to a connection mechanism for a robot joint, in particular to a quick connection mechanism for a robot modular joint. Background technique [0002] For robot modular joints, usually used in collaborative robots, the connection mechanism mainly includes axial screw connection, radial screw connection and end tooth connection. Due to the limited installation space, the axial connection usually uses hexagonal screws, and the open-ended wrench is used for fastening, which makes the disassembly and assembly of the joint very difficult, and the installation consistency and reliability are poor; the radial screw connection is more convenient to install, but directly The torque is transmitted by the shear force of the connecting screw, and it cannot transmit a large torque, so it is generally used in occasions with a small torque; the end tooth connection is more convenient to install, and the large torque is transmitted by the end teeth,...

AI Technical Summary

Problems solved by technology

Due to the limited installation space, the axial connection usually uses hexagonal screws, and the open-ended wrench is used for fastening, which makes the disassembly and assembly of the joint very difficult, and the installation consistency and reliability are poor; the radial screw connection is more convenient to install, but directly The torque is transmitted by the shear force of the connecting screw, which cannot transmit a large torque, so it is generally used in occasions with a small torque; the end tooth connection is more convenient to install, and the large torque is transmitted by the end teeth, but the compression of the end teeth Additional fastening parts need to be added, the machining accuracy of the end teeth is high, the process is more complicated, and it cannot withstand high bending moments

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