The clamping die and cutter head of the automatic double-head chamfering machine are exquisitely designed to ensure that the center line of the processed object and the cutter head is accurate and unchanged. It can evenly complete the processing of the outer corners, inner corners and end faces of seamless steel pipes at one time to ensure processing The size is accurate, and the material is automatically fed through the vibrating plate, which greatly improves the production efficiency and saves manpower.

　　At present, with the rapid development of domestic iron and steel enterprises, domestic automatic chamfering machines have developed rapidly. In the process of producing large round steel bar products, automatic chamfering machines are affected by processes such as cut-to-length segmental sawing and cooling bed collection. The end of the bar is prone to flash, burr and swelling, which seriously restricts the improvement of the surface quality of the product. Moreover, with the development of the market economy, bar deep processing units and users have put forward higher and stricter requirements on the surface quality and packaging quality of bar products.

　　For this reason, many companies have adopted a variety of measures in the finishing process of bars, such as: manual hand-held grinder grinding method, fixed grinder grinding method, machining lathe cutting method, etc., but the effects are not ideal, and the main existence The problems are:

　　(1) The operating rate is low, and it cannot be effectively matched with the production rhythm, which is easy to cause a backlog of bars and poor logistics.

　　(2) The finishing quality cannot be guaranteed, especially the manual and grinding wheel grinding methods, it is difficult to completely remove the swelling at the end of the bar.

　　(3) The finishing process is labor intensive and the working environment is harsh.

　　(4) When the fixed grinding wheel grinding method and the machining lathe cutting method are used, the unevenness of the bar during the production process will cause the difficulty of the entire rotary feed during the finishing of the bar, and the cycle of the end of the bar Oscillation will cause greater impact on the grinding wheel and cutting blades, which may easily cause the grinding wheel and blades to crack, which poses a greater safety hazard.