Electromagnetic drive robot driver for automobile tests

Abstract

The invention discloses an electromagnetic drive robot driver for automobile tests. The electromagnetic drive robot driver comprises a mechanical arm case, a mechanical arm, a mechanical arm control mechanism, a mechanical leg case, three mechanical legs and three mechanical leg control mechanisms. The top of the mechanical leg case is fixedly connected with the bottom of the mechanical arm case, the mechanical arm is connected with the mechanical arm case through the mechanical arm control mechanism, and the three mechanical legs are connected with the mechanical leg case through the three mechanical leg control mechanisms respectively. In automobile tests with high repeatability and long lasting time and without sufficient safety guarantees, the electromagnetic drive robot driver can completely replace a human driver for the automobile tests; besides, a more accurate and more objective test result can be obtained.

Description

technical field [0001] The invention belongs to the automatic driving technology of automobile test, in particular to an electromagnetically driven driving robot used for automobile test. Background technique [0002] In recent years, with the popularization of automobiles, the issue of automobile safety has become a general consensus in the society. At the same time, with the continuous increase of automobile ownership, harmful substances in automobile exhaust have caused environmental pollution and seriously affected people's quality of life. Therefore, before a car enters the market, it must undergo rigorous safety testing and repeated cycles of emissions testing. Obviously, under such test environment and conditions, it is not suitable for the driver to carry out the test. First, it will cause some damage to the driver's body. Secondly, under repeated test conditions, the driver's operation will produce large errors. Therefore, the application of driving robots in autom...

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Problems solved by technology

[0006] Chinese patent 200420027440.8 discloses a seven-link dual-degree-of-freedom closed-chain shift manipulator. The shift manipulator uses two cylinders as the drive. The advantage is that the structure is simple and the flexibility is good. The disadvantage is that it requires an air source, which increases the system structure and weight. , at the same time, due to the relatively large gas compressibility, the accuracy is low

[0007] Chinese patent 201410797965.8 discloses a gearshift manipulator and its control device for an automobile synchronizer test bench. The gearshift manipulator uses "motor + cylinder" as the drive, and the gear selection action is completed by the servo motor, and the gear shifting action is completed by the cylinder, which is easy to operate. It can simulate the effect of manual shifting, but its disadvantage is that the cylinder is arranged obliquely between the gear selection shaft and the shifting rocker arm, resulting in large system vibration, affecting the shifting effect, and poor stability

[0012] Chinese patent CN 2793786 Y discloses a pneumatic control device for automobile brake and clutch pedals. Its mechanical legs adopt "pneumatic servo + linkage mechanism". During the automatic driving process of real vehicles, it is difficult to obtain air sources

[0013] Chinese patent 200410065844.0 discloses a gas-electric hybrid driving robot for automobile testing. Its mechanical leg adopts "motor + reduction gear", which uses a rotating stepper motor and transmits torque through the reduction gear to drive the throttle mechanical leg of the driving robot. This structure requires relatively high precision for installation, and the structure is complex

[0014] Chinese patent CN 103631144 A discloses an electromagnetically driven car driving robot. The foot plate of the mechanical leg, the calf rod of the mechanical leg and the thigh rod of the mechanical leg are connected by a ball hinge. more power loss

The connection between the thigh rod and the calf rod of the mechanical leg in this patent cannot be fixed well when the length of the mechanical leg is adjusted to suit different models, and it is easy to slip during the movement of the mechanical leg, resulting in a decrease in test accuracy

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