High-efficiency compact mainboard test fixture

The embodiment of the invention provides a high-efficiency compact mainboard test fixture. The test fixture comprises an upper frame assembly and a lower frame assembly, the upper frame assembly and the lower frame assembly are connected through a gas spring assembly. An in-out assembly and a test module are arranged between the upper frame assembly and the lower frame assembly. The in-out assembly comprises a sliding rail module and a lower frame assembly, one end of the sliding rail module is fixedly connected with the lower frame assembly, the other end of the sliding rail module is fixedlyconnected with the lower frame assembly, and the lower frame assembly is slidably connected with the lower frame assembly through the sliding rail module. The size of the whole machine is greatly reduced through a frame structure composed of the upper frame assembly and the lower frame assembly. The feeding and discharging assembly achieves robot or manual feeding and discharging, so that full automation of mainboard tes