Variable-structure rope traction parallel robot for automobile collision test

Abstract

The invention provides a variable-structure rope traction parallel robot for an automobile collision test. The robot comprises a machine frame, a tail end actuator and two traction rope driving branches which are oppositely arranged in pair, each group of traction rope driving branches comprises a universal hinge point, a guide rail assembly, a tail end actuator driving assembly, a universal hingepoint driving assembly, a tail end actuator traction rope and universal hinge point traction ropes, the universal hinge point are arranged on the guide rail assembly in a sliding mode, the two ends of the universal hinge point are connected with the universal hinge point driving assembly through the universal hinge point traction ropes, one end of the tail end actuator traction rope is connectedwith the tail end actuator, the other end of the tail end actuator traction rope is connected with the tail end actuator driving assembly through a universal hinge point, and the tail end actuator isconnected with a test vehicle through a connecting device. The variable-structure rope traction parallel robot has the advantages of being high in response speed, diversified in test project and largein working space, and the defects that a conventional track type test traction system is single in function, small in motion space of a test object, difficult to adjust speed and slow in response speed are overcome.

Description

technical field [0001] The invention belongs to the technical field of automobile collision tests, in particular to a variable-structure rope traction parallel robot used for automobile collision tests. Background technique [0002] At present, domestic and foreign automobile crash test systems are roughly divided into three categories: (1) "one"-shaped crash test system with open-loop transmission of steel wire ropes. Due to the one-way traction, only forward collisions can be performed, and vehicle-to-vehicle collisions, rollovers, rear collisions, etc. cannot be performed. (2) The "one" type collision test system with steel wire rope closed-loop transmission cannot perform vehicle-to-vehicle collisions. Before each test, the trolley needs to be adjusted to the initial position, which is very inconvenient to use. (3) The "T" structure real vehicle crash test system, due to the high requirements on the collision point, requires two sets of traction systems with very high s...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a variety of test items, a large working space and a fast response speed, which can overcome the shortcomings of the traditional automobile collision method

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