A conical/cylindrical linear raceway ultra-precision equipment

Abstract

The invention discloses conical / cylindrical linear rollaway nest superfinishing equipment. The conical / cylindrical linear rollaway nest superfinishing equipment comprises an operating table and a material feeding and discharging conveying mechanism arranged on the operating table, wherein a big reciprocating and small vibrating mechanism, a rollaway nest superfinishing swinging head and a flange superfinishing swinging head are further arranged on the operating table; a feeding opening is formed in the middle of the material feeding and discharging conveying mechanism; a main shaft is arranged on the back side of the feeding opening; an inner hole centering component is arranged at the upper end of the main shaft; the big reciprocating and small vibrating mechanism comprises a big reciprocating mechanism and a small vibrating mechanism; the big reciprocating mechanism and the small vibrating mechanism are connected through a first connecting plate; a first skipping component is arranged on the back side of the rollaway nest superfinishing swinging head; a second skipping component is arranged on the back side of the flange superfinishing swinging head; both the rollaway nest superfinishing swinging head and the flange superfinishing swinging head are driven by the big reciprocating and small vibrating mechanism for superfinishing. The conical / cylindrical linear rollaway nest superfinishing equipment performs rollaway nest superfinishing and flange superfinishing at the same time, is simplex in rollaway nest superfinishing vibration and stable and reliable in working conveying, and can meet superfinishing requirements of a high-precision workpiece.

Description

technical field [0001] The invention belongs to the technical field of superprecision bearings, and in particular relates to superprecision equipment for conical / cylindrical linear raceways. Background technique [0002] In the bearing manufacturing process, superfinishing is the last and most important process of bearing processing. The existing conical / cylindrical linear raceway superfinishing equipment has the following problems: (1) The oscillating mechanism used on the superfinishing machine tool is connected with a rotating shaft on the motor shaft through a coupling, and the rotating shaft Two symmetrical balance weights are installed on both sides of the bottom with a crank through the balance wheel. A ram is installed under the rotating shaft with a crank, a slide seat and its driving wheel, and an oilstone clip is installed at the lower end of the ram. This traditional The oscillating mechanism of the ultra-precision equipment adopts the crank-connecting rod mecha...

AI Technical Summary

Problems solved by technology

The existing conical / cylindrical linear raceway superfinishing equipment has the following problems: (1) The oscillating mechanism used on the superfinishing machine tool is connected with a rotating shaft on the motor shaft through a coupling, and the rotating shaft Two symmetrical balance weights are installed on both sides of the bottom with a crank through the balance wheel. A ram is installed under the rotating shaft with a crank, a slide seat and its driving wheel, and an oilstone clip is installed at the lower end of the ram. This traditional The oscillating mechanism of the ultra-precision equipment adopts the crank-connecting rod mechanism, which is prone to problems such as inaccurate eccentricity, dead point position, easy breakage of the connecting rod, and difficulty in keeping the crank on the same level, so it is impossible to super-precision the bearing raceway. The logarithmic curve cannot meet the grinding requirements of high-precision surfaces; (2) The raceway super-precision swing head and rib super-fine swing head used are single-piston-guided or single-piston plus a guide-rod-guided. All of these methods may cause unbalance of the swing head when swinging, resulting in high frequency (250 times / minute) of the ultra-precision machine during ultra-precision. When the machine tool system vibrates greatly, the amount of super-precision is not enough. times / minute), the swing head stops or the swing is not stable, so that the roughness and smoothness of the workpiece after ultra-finishing cannot meet the process requirements, which seriously affects the further improvement of product quality; or the guiding performance is not smooth enough, which is easy to cause death. point, requires greater pressure to push

(3) They are all horizontal super-precision methods (the bearings are perpendicular to the ground). When transporting the workpiece, they rely on the free-fall rolling method of the workpiece, which causes the workpiece groove to rub and make noise. When processing the workpiece, the raceway is super-precision It cannot be processed at the same time as super-finishing on the ribs, and the super-finishing of the raceway is not a single oscillation, which cannot meet the requirements of high-precision workpieces

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