Abstract: In order to ensure the safe use of TPX6113/2 horizontal milling and boring machine and improve its ability to process super-long and over-heavy parts, the auxiliary support frame is designed to expand the bearing area of the boring machine work platform, broaden the processing range of the boring machine, and use the principle of elastic support to make the support frame follow The parts move together and provide dynamic elastic balance support to solve the problem of difficult clamping of large parts and provide a new idea for small machine to process large parts.