2results about How to "Effective transmission torque" patented technology

The automobile assembly type steering knuckle comprises a main knuckle rod and an auxiliary knuckle rod, a plurality of sets of tooth columns which are annularly arranged are arranged on the surface of the auxiliary knuckle rod, a tooth inserting groove is formed between every two adjacent tooth columns, a cavity is formed in the main knuckle rod, an extension pipe is installed on the outer side of the cavity, and the surface of the extension pipe is sleeved with a rotary knob ring in a threaded mode. A plurality of groups of tooth columns are also arranged on the inner wall of the cavity of the main section rod in an annular array; and part of the tooth columns are inserted among the tooth inserting grooves. Fixing seats are mounted at the ends of the main section rod and the auxiliary section rod, and metal reinforcing layers are arranged at the end areas of the fixing seats; a rotating block is arranged in the fixing base, second connecting rods on the two sides of the rotating block are rotationally installed in first clamping holes of the fixing base, and first connecting rods on the surface of the rotating block are inserted into second clamping holes of the installation lugs. A mounting seat with a cutting groove and a mounting hole is mounted on one side of the mounting lug, anti-skid patterns are arranged in the mounting hole, and a locking bolt is arranged outside the mounting seat. An assembled structure is adopted, installation and maintenance are convenient, and the connection stability is improved through cooperation of the tooth columns and the tooth inserting grooves.

The application relates to the technical field of machine tooling equipment, and discloses a positioning block for preventing rotation of a drill bit, the drill bit and a machining method. The positioning block comprises a head-changing drill bit module, and a boss structure is arranged at the top of the head-changing drill bit module; the boss structure is a hexahedral structure comprising a bottom surface, a top surface, two side surfaces and two end surfaces; the bottom surface of the boss structure is arranged at the top of the head-changing drill bit module; the top surface is a planar structure, the two side surfaces are first stress surfaces, and the two end surfaces are second stress surfaces; the first stress surfaces are a pair of planar surfaces which are centrosymmetric to each other, and the second stress surfaces are a pair of involute curved surfaces which are centrosymmetric to each other. The application effectively prevents relative rotation between a cutter body and the head-changing drill bit module during cutting, avoids causing blockage and affecting chip removal, and thus guarantees the stability of machining quality.