The invention relates to a quadrilateral stepped-tooth spline guide-rail mechanism which comprises an external spline guide rail and an internal spline guide rail, wherein the external spline guide rail and the internal spline guide rail are in clearance fit; the spline external tooth form surface of the external spline guide rail is in a planar structure; the spline external tooth form surface and the spline tooth top surface form an external stepped tooth structure and are distributed on the periphery of a cylinder to form the external spline guide rail; the spline internal tooth form surface of the internal spline guide rail is in a planar structure; the spline internal tooth form surface and the spline internal tooth bottom surface form an internal stepped tooth groove structure; and the internal stepped tooth groove structure and a plurality of independent surfaces are combined to form an external spline guide rail inner cavity, thereby forming the internal spline guide rail. Due to the adoption of the quadrilateral stepped tooth spline guide rail mechanism, the structure of the spline guide rail mechanism of a high speed gear shaper is simplified. A universal cutter can be used for realizing the machining of the spline guide rail mechanism of the high speed gear shaper. The invention has the characteristics of simple structure, simple manufacturing process, simple detection process, low cost, high operational precision and high safety and reliability.

Quadrilateral stepped-tooth spline guide-rail mechanism

A cast inner wear layer device for a static pressure guide sleeve comprises a central shaft, wherein a spline guide rail is arranged outside the central shaft; a static pressure spline guide sleeve is arranged on the outer side of the spline guide rail; a wear layer cavity is formed between the static pressure spline guide sleeve and the spline guide rail; a fastening screw is arranged on the outer side of the static pressure spline guide sleeve; a lower positioning disk and an upper positioning disk are arranged at two ends of the static pressure spline guide sleeve respectively; a connecting plate is arranged at the outer end of the lower positioning disk; a gate plate is arranged at the outer end of the upper positioning disk; four communicating holes are formed between the wear layer cavity and the outside through stainless steel tubes; gate plate connectors are arranged at two hole ends; and riser tube connectors are arranged at another two hole ends. According to the cast inner wear layer device disclosed by the invention, the spline guide rail and the spline guide sleeve are used as one part of a tooling, and thus the cast inner wear layer device is simple in structure and convenient to operate; and the machined spline guide rail pair has the advantages of flexibility in motion, long service life, easiness in guarantee of precision, and capability of meeting the service requirement of a certain type of gear shaping machine.

Cast inner wear layer device for static pressure guide sleeve

The utility model relates to a numerical control turning center with hydrostatic guide rails and a hydrostatic main shaft system. An upper guide rail and a lower guide rail in parallel arrangement are arranged on an inclined machine body, slide blocks are respectively matched on each guide rail, a static pressure cavity is arranged between each guide rail and each slide block matched with the guide rail, the periphery of the static pressure cavity is provided with a sealing element, the static pressure cavity is communicated with an oil inlet pipe joint and an oil outlet pipe joint, the oil inlet pipe joint and the oil outlet pipe joint are connected onto the slide blocks through screw threads and are connected with an oil supply device through pipelines, a main shaft box support frame is fixedly arranged on the inclined machine body, a hydrostatic main shaft system mechanism is fixedly connected onto the main shaft box support frame, and the inclined machine body is made of artificial granite materials. In the work, oil films are formed between the slide blocks and the guide rails, the rigidity of the oil films is high, the bearing capability is high, a vibration absorption function is realized, coupling surfaces of the guide rails do not have friction or abrasion, the rigidity of the guide rail structure is enhanced, whole components are few, the vibration in the operation is reduced, and the precision is high.

Numerical control turning center with hydrostatic guide rails and hydrostatic main shaft system

The invention discloses a precise numerical control turning center with a hydrostatic pressure spindle system mechanism. The precise numerical control turning center comprises a slant machine bed; a spindle box support is fixed on the slant machine bed; the hydrostatic pressure spindle system mechanism is fixed above the spindle box support; and an oil inlet, an oil outlet and cooling liquid port on the hydrostatic pressure spindle system mechanism are connected with an oil feeding device and a cooling device of the turning center through a pipe joint. The spindle mechanism is the whole hydrostatic pressure spindle system mechanism and the lower part of the hydrostatic pressure spindle system mechanism is connected with the slant machine bed through the spindle box support, so that the installation accuracy of a machine tool and the machining accuracy of workpieces are greatly improved, the whole parts are few and the precise numerical control turning center is convenient to install.

Precise numerical control turning center with hydrostatic pressure spindle system mechanism

The invention discloses double hydrostatic guide ways and a mechanical universal angle helical gear shaping machine The double hydrostatic guide ways comprise an internal helical guide way, a middle guide way and an external spline guide way An external helical guide way matched with the internal helical guide way is arranged on the outer ring of the middle guide way A first hydrostatic oil cavity is formed between the external helical guide way and the internal helical guide way An internal spline guide way matched with the external spline guide way is arranged on the inner ring of the middle guide way, and a second hydrostatic oil cavity is formed between the external spline guide way and the internal spline guide way The middle guide way is provided with an oil guide cavity communicating with the first hydrostatic oil cavity and the second hydrostatic oil cavity simultaneously, and the oil guide cavity is connected to a hydraulic system The double hydrostatic guide ways of the structure are better in work stability, higher in machining precision, longer in service life, good in structural rigidity and convenient to install; the same hydraulic system is used for providing hydraulic oil for the external hydrostatic helical guide way and the internal hydrostatic spline guide way, so that the system is more concise, control is more accurate, and the structure stability is better

Double hydrostatic guide ways and mechanical universal angle helical gear shaping machine

The invention discloses a static pressure spindle device, and relates to the field of high speed gear shaping machine manufacturing. A male spline guide rail is separated from a spindle, and static pressure oil ways are arranged in a female spline guide rail and a static pressure bearing, so that the spindle meets the requirement of high speed processing, is suitable for the reciprocating frequency of high speed gear shaping of the gear shaping machine, and has enough rigidity and motion accuracy, and the integral structure has stable motion, high precision, long service life and strong processing capacity. The static pressure oil ways can reduce friction between the spindle and a static pressure bearing, and between the male spline guide rail and the female spline guide rail. A design of separated male spline guide rail and the spindle can facilitate replacing the male spline guide rail and the female spline guide rail, and the whole spindle is not needed to be replaced due to the wear of the male spline guide rail, so the service life of the spindle is prolonged, and the production cost is reduced.

Static pressure spindle device

The utility model provides a static pressure main shaft apparatus, and relates to a manufacturing field for a high speed gear shaper An external spline guide rail and the main shaft are separated and a static pressure oil path is arranged in the internal spline guide rail and the static pressure bearing, thus the main shift is adaptive to the high speed processing, meets the reciprocating motion frequency of the high speed gear shaping on the gear shaper and has enough rigidity and motion precision; the entire structure has stable motion, high precision, long service and strong processing capability; the static pressure oil path can reduce frictions between the main shaft and the static pressure bearing and between the external spline guide rail and the internal spline guide rail; the separation design of the external spline guide rail and the main shaft is convenient for replacing the external spline guide rail and the internal spline guide rail without replacing the whole main shaft owing to wearing on the external spline guide rail, thus prolonging the service life of the main shaft and decreasing the production cost

Wen Meng

Papers

Static pressure spindle device

Static pressure main shaft apparatus