Multi-channel abrasive flow machining tool for deburring cross holes of three-way parts

The invention discloses a multi-channel abrasive flow machining tool for deburring cross holes of three-way parts. The multi-channel abrasive flow machining tool comprises an upper supporting ring seat, an upper die, a lower die and a lower supporting ring seat which are sequentially stacked and assembled; the upper die is provided with a limiting hole for mounting a guide sleeve; one end of the guide sleeve is communicated with a pipe nozzle of a three-way part; the three-way part is fixed by the guide sleeve and a hole blocking plate mounted above the upper die; a flow channel hole is formed in a position, corresponding to the limiting hole of the upper die, of the lower die; and the flow channel hole is communicated with the other end of the guide sleeve. According to the multi-channel abrasive flow machining tool for deburring the cross holes of the three-way parts, a flow-blocking reversing ejector pin is designed at a crossed hole of a typical three-way part, so that the rapid impact of pressure concent