Bearing inner ring raceway spiral superfinishing machine

Abstract

The invention relates to a bearing inner race rolling path screwed superfinishing machine which comprises a space connection rod oscillation oscillator, a space connection rod screwed oscillator, a bearing inner race rotation driving device and a centering clamp, wherein the bearing inner race driving device and the centering clamp are fixedly connected to a machine base. The space connection rod oscillation oscillator and the space connection rod screwed oscillator are arranged on two sides of the bearing inner race rotation driving device and the centering clamp respectively. The space connection rod oscillation oscillator and the space connection rod screwed oscillator are connected with lengthwise guide rails through supporting frames respectively. The lengthwise guide rails are connected with horizontal guide rails on the machine base. Oilstone oscillation heads of the space connection rod oscillation oscillator and the space connection rod screwed oscillator are located on upper positions and lower positions of the centers of the bearing inner race rotation driving device and the centering clamp respectively. Vertical position adjusting screw rods of the space connection rod oscillation oscillator and the space connection rod screwed oscillator are arranged on the two supporting frames respectively. Front-and-rear position adjusting screw rods of the supporting frames are arranged between the supporting frames and the lengthwise guide rails. Left-right position adjusting screw rods of the supporting frames are arranged between the lengthwise guide rails and the horizontal guide rails.

Description

technical field [0001] The invention relates to a superfinishing processing device for the raceway of a bearing inner ring, in particular to a superfinishing machine which adopts a spiral method for superfinishing processing. Background technique [0002] The method of spiral superfinishing, such as figure 1 As shown, the inner ring of the bearing is fixed on the main shaft of the spiral superfinishing machine, and rotates together with the main shaft. Two pieces of oil stones with different characteristics are used for superfinishing at the groove positions at both ends of the diameter direction of the inner ring of the bearing. Among them, one whetstone performs spiral motion (oscillating angular velocity ω, linear motion velocity ν synthesis), the whetstone pressure Ρ, and the other whetstone performs oscillating motion (oscillating angular velocity ω). [0003] The existing spiral superfinishing device adopts a fixed-ratio transmission mode. The movement mechanisms of t...

AI Technical Summary

Problems solved by technology

However, it is not suitable for ultra-finishing of raceways of inner rings of bearings in small batches and with multiple specifications that require frequent adjustment of the pitch and swing of the spiral motion.

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