Novel roller ultra-fine machining equipment for tapered roller bearing

Abstract

The invention discloses novel roller ultra-fine machining equipment for a tapered roller bearing. Th equipment comprises a machine frame, a roller conveying device, a coarse grinding device, a semi-fine grinding device and a fine super-fine grinding device, wherein the roller conveying device is fixedly arranged on the machine frame, and the coarse grinding device, the semi-fine grinding device and the fine super-fine grinding device are sequentially and independently arranged above the machine frame; each of the three grinding devices comprises a linear motor, a vibrating plate, a lifting aircylinder, an oilstone and an ultrasonic auxiliary grinding device, wherein the linear motors are fixedly arranged on the machine frame in the horizontal direction, the vibrating plates are fixedly arranged on the linear motors and can reciprocate in the horizontal direction, the lifting air cylinders with piston rods arranged facing downward are fixedly arranged on the vibrating plates, executionelements of the ultrasonic auxiliary grinding devices are fixed to the tail ends of the piston rods of the lifting air cylinders, and the oilstones are fixed to the tail ends of the execution elements. According to the novel roller ultra-fine machining equipment for the tapered roller bearing, the linear motors and the lifting air cylinders of the three grinding devices are independently driven and controlled by multi-channel flexible controllers; the amplitudes of the vibrating plates of the the three grinding devices are gradually decreased, and the vibrating frequencies are sequentially increased; the output pressures of the lifting air cylinders are sequentially decreased, and the number of the oilstones are sequentially increased; and after the three grinding devices complete machining of rollers, the high-quality of roller finished products can be ensured.

Description

technical field [0001] The invention belongs to the field of bearing roller processing, in particular to a new roller superfinishing equipment for tapered roller bearings. Background technique [0002] With the development of ultra-precision machining technology, bearings are widely used in various fields. Bearing rollers are one of the most important parts in bearings. The accuracy of bearing rollers is a key factor affecting the quality of roller bearings. The influence of bearing and service life accounts for almost 60%, and the surface roughness, stress distribution and surface topography consistency of bearing rollers are one of the main reasons affecting bearing accuracy. [0003] According to the principle of super-finishing machining, the super-finishing process is a process of converting from cutting action to finishing action, so it is necessary to remove the machining allowance of the workpiece as soon as possible in the initial stage, which requires a strong cutt...

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Problems solved by technology

[0008] CN201520331808.8 discloses a bearing roller processing device, including a frame, a motor, a pulley, an outer spindle, a hydraulic clamping mechanism, a numerically controlled tool holder, a cutting tool holder and a receiving trough; the outer spindle is installed on the frame , one end of the outer spindle is connected to the hydraulic clamping mechanism, and the other end of the outer spindle is installed with a chuck; however, the machining accuracy of the bearing roller processing device designed by this patent cannot meet the requirements, and the roller grinding efficiency is low , and improper pressure control is easy to damage the surface of the roller

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