Ultra-precision grinding head for ultra-precision grinding machine

Abstract

The invention relates to the field of precision roller grinding machining equipment, in particular to an ultra-precision grinding head for an ultra-precision grinding machine. The ultra-precision grinding head comprises a constant pressure feeding mechanism, a clamping mechanism and a guide seat, wherein the constant pressure feeding mechanism comprises a cylinder body and a piston rod; the clamping mechanism comprises a lower splint connected to a piston rod and an upper splint connected to the lower splint, and one sides, away from the constant pressure feeding mechanism, of the upper splintand the lower splint form a clamping part for fixing oil stones together; and the guide seat comprises two plane guide sliding rails fixed on the cylinder body and distributed on both sides of the clamping mechanism, the upper edges of the plane guide sliding rails are provided with smooth surfaces allowing the oil stones to slide, and spring sheets are further arranged on the plane guide slidingrails for pressing the oil stones tightly on the upper edges of the planar guide sliding rails. By means of the ultra-precision grinding head for the ultra-precision grinding machine, the length andthickness of the oil stones are not required strictly, so that the applicability is improved; and existing oil stones on the market can meet the requirements, so that the ultra-precision grinding headis convenient for customers to use, and the production cost is not increased.

Description

technical field [0001] The invention relates to the field of precision roller grinding processing equipment, in particular to a superfinishing head for a superfinishing machine. Background technique [0002] In the grinding process of precision bearing rollers, the rectangular oil stone is usually clamped on the lapping superfinishing machine, and then the continuous rollers to be processed are controlled to rotate at high speed and move along the length of the oil stone to complete the roller finishing. . The clamping mechanism of the whetstone in the prior art generally includes a splint, two or more nuts fixed on the lapping machine above the splint, and screws fitted in the nuts respectively. After placing the oil stone on the splint, tighten the side of the oil stone against the splint by screwing the screw closer to the splint so that the small end of the screw pushes one side of the oil stone tightly against the splint. This kind of clamping mechanism has the follow...

AI Technical Summary

Problems solved by technology

This kind of clamping mechanism has the following problems in the use process: 1. The clamping mechanism must ensure the clamping strength for the oil stone, and the contact point between the screw and the oil stone must be properly close to the middle of the oil stone, so that the utilization rate in the width direction of the oil stone is low. Low, serious waste; 2. The clamping method through screw point contact is easy to cause the instability of the oilstone in the roller grinding process due to the different tightening degrees of two or more screws, resulting in a low product yield; 3 1. The clamping method of screw point contact is easy to cause the whetstone to break due to the over-tightening of the screw, which increases the production cost; 4. To replace the whetstone, you need to loosen all the screws first, and then re-tighten all the screws after replacing the whetstone. It needs to be kept uniform, resulting in a long and difficult time for oil stone replacement and clamping, which is not conducive to the improvement of enterprise production efficiency

As a result, the whetstone clamping and feeding device can only use whetstones of special thickness and length to adapt to the spacing and opening size of the two chutes. There are strict requirements on the specifications of the whetstones, which narrows its scope of application.

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