Rapid adjusting type scribing auxiliary device for machining

The invention provides a rapid adjusting type scribing auxiliary device for machining. The rapid adjusting type scribing auxiliary device comprises a base, driving clamping blocks, auxiliary sliding blocks, rack sets, telescopic driving pieces, a storage table, an angle adjusting table, a connecting rod, a speed changing clamp and a positioning pin. Four square holes in the surface of the base aremovably connected with four speed change mechanisms; the driving clamping blocks are slidably connected to main guide rods at the two sides of the upper surface of the base; the auxiliary sliding blocks are connected to two auxiliary guide rods on the upper surface of the base in a sliding manner; the two rack sets are fixedly connected to the two sides of the driving clamping blocks through welding, and the rack sets are in engaged connection with the speed change mechanisms; and the two telescopic driving pieces are fixedly connected to the tail ends of the two main guide rods of the base.It can be seen that when c