The Design And Study Of Electroplating CBN Worm Type Honer

According to the development of modern industrial technology, mechanical transmission need satisfy the requirement of high speed, high efficiency and low noise. The quality and precision of gear machined have been the key influencing mechanical transmissional performance. Therefore , modern mechanical development need the hard face gears with high bearing capacity, teeth surface hardness, resisting corrosive pitting, high precision, low teeth surface roughness, the design and manufacture process of worm type honer will be studied in this paper . The process of worm type honer has apparent effect to improve gear precision after heat treating, adapt to batch production of mid-module gear, especially to the motor industry. Itis a new process with developmental prospect.Process of the Worm type honing as a method machining hard teeth profile gear, whose features , applications and feasibility of machining have been represented in many articles, but theoretical research is lack. Based on the theory of the space-crossed-axis gearing, the theoretical study on the gear honing method is carried out, and the equation of the spiral gear tooth flank is derived.Through ActiveX technology provided by AutoCAD, using VBA to complete compute aided design , including computing Worm type honer parameter and compiling drawing program so as to accomplish parameterized design, reduce workload designing Worm type honer and improve design efficiency.The main process problems in electroplating CBN Worm type honer are the binding force between CBN composite deposit and matrix and the uniform of the CBN abrasives. This paper expatiates the electroplating parameters influencing the bindingforce, such as the current density, temperature, PH value, stirring role, the area ratio of cathode to anode and current of commutation. Using suspending method to putting abrasives may better the uniform of abrasives and adding thermal diffusion in vacuum at high temperature after electroplating, the binding force between cladding material and matrix is improved evidently.