CN210790420U

CN210790420U - Swinging grinding mechanism for processing oil cavity of static and dynamic pressure bearing

Info

Publication number: CN210790420U
Application number: CN201921787050.3U
Authority: CN
Inventors: 罗新权; 董秀娟; 程辉; 张小菊
Original assignee: SHAANXI QINCHUAN GRINDING MACHINE CO LTD
Current assignee: SHAANXI QINCHUAN GRINDING MACHINE CO LTD
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-06-19
Anticipated expiration: 2029-10-23

Abstract

The utility model provides a swing grinding mechanism for processing of static and dynamic pressure bearing oil pocket has the base, the base is on the U type structure of oblique bottom surface and the base is removable is fixed in lathe table surface, is located the left pendulous device of base and lathe main shaft flexonics, the pendulous device lower extreme is connected with the input of installing the power transmission on the base, power transmission's output and the work piece fixed connection that is located the base right side to realize the swing of work piece after being driven the pendulous device swing by the lathe main shaft. The utility model discloses can realize installing the swing of the work piece on power transmission, solve current lathe headstock and drive the work piece rotatory and can't be to the problem of work piece oil pocket abrasive machining, accomplish the abrasive machining to the work piece oil pocket, simplify the process steps of work piece oil pocket processing, reduced the processing degree of difficulty, satisfy the work piece at the requirement of oil pocket angle within range wobbling, swing angle can adjust according to the contained angle of work piece oil pocket, work piece oil pocket process range is big.

Description

Swinging grinding mechanism for processing oil cavity of static and dynamic pressure bearing

Technical Field

The utility model belongs to the technical field of part abrasive machining, concretely relates to swing grinding mechanism for processing of static and dynamic pressure bearing oil pocket.

Background

As shown in figure 1, the bearing oil cavities 1 are distributed on the wall surface of the inner hole of the bearing, so that the precision requirement is high, the roughness is fine, and the technical requirement index is difficult to achieve by a non-grinding processing mode. When the oil cavity of the common cylindrical grinder is ground by using the internal grinding tool of the cylindrical grinder, the oil cavity is an independent arc surface, and the machine tool headstock drives the workpiece to rotate, so that the workpiece cannot be machined.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem: the swinging grinding mechanism for processing the oil cavity of the static and dynamic pressure bearing is characterized in that a swinging device and a power transmission device connected with the swinging device are arranged on a base fixed on a working table of a machine tool, and the swinging of a workpiece arranged on the power transmission device is realized after the swinging device is driven by a machine tool spindle to swing, so that the problem that the workpiece oil cavity of the workpiece cannot be ground and processed due to the fact that the conventional machine tool headstock drives the workpiece to rotate is solved, the grinding processing of the oil cavity of the workpiece is completed, the processing steps of the oil cavity of the workpiece are simplified, the processing difficulty is reduced, the requirement that the workpiece swings within the angle range of the oil cavity is met, the swinging angle can be adjusted according to the included angle of the oil cavity of.

The utility model adopts the technical proposal that: a swing grinding mechanism for processing of static and dynamic pressure bearing oil pocket has the base, on the base was the U type structure of oblique bottom surface and the base is removable to be fixed in lathe table surface, was located the left pendulous device of base and lathe main shaft flexonics, the pendulous device lower extreme is connected with the input of installing the power transmission on the base, power transmission's output and the work piece fixed connection that is located the base right side to realize the swing of work piece after being driven the pendulous device swing by the lathe main shaft.

The swing device comprises a swing rod and a drive plate, the drive plate is flexibly connected with a machine tool spindle and is fixed to the drive plate with one end of a drive shaft eccentrically arranged at the rotation center of the drive plate, a guide groove is formed in the swing rod, the other end of the drive shaft is inserted into the guide groove, the lower end of the swing rod is fixedly connected with the input end of the power transmission device, and the machine tool spindle drives the drive plate to rotate and then drives the swing rod to swing back and forth by taking the connection position of the swing rod and the power transmission device as the center through the.

Furthermore, a plurality of light holes with different eccentric amounts from the rotation center of the drive plate are formed in the drive plate, and the drive shaft is in interference fit in the light holes which are adaptive to the included angle of the oil cavity of the workpiece.

Furthermore, the power transmission device comprises a swing shaft, a sector gear, a rotating shaft and connecting discs, wherein through holes corresponding to the positions of the upper end and the lower end of the two side plates of the base are respectively provided with a through hole, a bush is arranged in the through hole in an interference fit manner, the swing shaft is in clearance fit with the bushes at the lower ends of the two side plates of the base, the left end of the swing shaft is fixedly connected with the lower end of the swing device positioned on the left side of the base, the axial position of the swing shaft is positioned through a positioning shaft shoulder on the left side of the swing shaft and a check ring arranged at the right end of the swing shaft and positioned at the right side of the base, the rotating shaft is in clearance fit with the bushes at the upper ends of the two side plates of the base, the positioning shaft shoulder at the left end of the rotating shaft is positioned outside the left side plate of the, the swinging device drives the swinging shaft to swing and then realize the swinging of the workpiece arranged on the rotating shaft.

Furthermore, the sector gear and the gear are respectively and fixedly connected with the swinging shaft and the rotating shaft through keys, and the swinging shafts on two sides of the sector gear are provided with check rings.

Furthermore, all system on the base both sides board upper end inside wall has with the concentric location boss that sets up of through-hole that corresponds position department and gear position between two location bosses, install in the pivot and be used for the retaining ring of counter shaft axial positioning and retaining ring and be located the base right side.

The utility model has the advantages compared with the prior art:

1. according to the technical scheme, the swinging device and the power transmission device connected with the swinging device are arranged on the base fixed on the working table surface of the machine tool, and the swinging of the workpiece arranged on the power transmission device is realized after the swinging device is driven by the main shaft of the machine tool to swing, so that the problem that the oil cavity of the workpiece cannot be ground due to the fact that the workpiece is driven by the conventional headstock of the machine tool to rotate is solved, and the oil cavity of the workpiece is ground;

2. the technical scheme adopts a structure that a drive plate connected with a machine tool spindle and a drive shaft eccentrically arranged on the drive plate stir an oscillating bar to oscillate, so that the rotary motion of the machine tool spindle is converted into the oscillating motion of a rotating shaft by taking the axis as the center, and the structure is simple, novel in design and easy to realize;

3. according to the technical scheme, a plurality of unthreaded holes different from the eccentric amount of the rotation center of the drive plate are formed in the drive plate, the drive shaft is in interference fit in the unthreaded holes adaptive to the included angle of the oil cavity of the workpiece, and the workpiece swinging at different oil cavity angles is realized by changing the position of the drive shaft on the drive plate;

4. according to the technical scheme, the processing steps of the oil cavity of the workpiece are simplified, the processing difficulty is reduced, the requirement that the workpiece swings within the angle range of the oil cavity is met, the swing angle can be adjusted according to the included angle of the oil cavity of the workpiece, and the processing range of the oil cavity of the workpiece is large.

Drawings

FIG. 1 is a schematic view of a bearing structure in a hybrid spindle system;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural view of the present invention;

fig. 4 is a sectional view taken along line B-B in fig. 3.

Detailed Description

An embodiment of the present invention will be described in conjunction with fig. 1-4, so that the technical solution will be described clearly and completely, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, not the whole embodiment.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

A swing grinding mechanism for processing a static and dynamic pressure bearing oil cavity is provided with a base 1, wherein the base 1 is of a U-shaped structure with an inclined bottom surface, the base 1 is detachably fixed on a working table surface of a machine tool, a positioning table is arranged at the right end of the bottom surface of the base 1 and is abutted against one side wall of the working table of the machine tool, the other side of the bottom surface of the base 1 is fixedly connected with the left side of the base 1 through a positioning block, the positioning block is abutted against the other side wall of the working table of the machine tool, so that the base 1 can be detachably and fixedly connected on the working table of the machine tool, a swing device positioned on the left side of the base 1 is flexibly connected with a main shaft of the machine tool, the lower end of the swing device is connected with the input end of a power transmission device arranged on the base; specifically, pendulous device includes pendulum rod 2 and driver plate 3, driver plate 3 and machine tool spindle flexonics and with driver plate 3 the 4 one end of the eccentric dial shaft that set up in center of rotation are fixed in driver plate 3, wherein, driver plate 3 and machine tool spindle can adopt loose joint to be connected, adopt the purpose of flexible connection mode to be: the main shaft box driving plate 3 of the machine tool only transmits power, the concentricity can be adjusted, if rigid connection is adopted, the concentricity is difficult to adjust, the concentricity is poor, and motion interference can be directly caused; the swing rod 2 is provided with a guide groove 5, the other end of the shifting shaft 4 is inserted into the guide groove 5, the lower end of the swing rod 2 is fixedly connected with the left end of a swing shaft 6 in the power transmission device through a radial pin, and the machine tool spindle drives the driving plate 3 to rotate and then shifts the swing rod 2 through the shifting shaft 4 to swing in a reciprocating mode by taking the connection position of the swing rod 2 and the power transmission device as the center; specifically, a plurality of unthreaded holes different from the eccentric amount of the rotation center of the drive plate 3 are formed in the drive plate 3, and the drive shaft 4 is in interference fit in the unthreaded holes adaptive to the included angle of the workpiece oil cavity and used for adjusting the swing angle according to the angle of the workpiece oil cavity; specifically, the power transmission device comprises a swing shaft 6, a sector gear 7, a gear 8, a rotating shaft 11 and a connecting disc 9, wherein through holes corresponding to the positions are formed in the upper end and the lower end of two side plates of a base 1, bushings 10 are in interference fit in the through holes, the swing shaft 6 is in clearance fit with the bushings 10 at the lower ends of the two side plates of the base 1, the left end of the swing shaft 6 is fixedly connected with the lower end of a swing rod 2 positioned on the left side of the base 1, the axial position of the swing shaft 6 is positioned through a positioning shaft shoulder on the left side of the swing shaft 6 and a check ring 12 which is arranged at the right end of the swing shaft 6 and positioned on the right side of the base 1, the check ring 12 is arranged at the position, the axial movement of the swing shaft 6 can be effectively avoided, the meshing precision and the transmission effect of the sector gear 7 and the gear 8 are ensured, a connecting plate 9 positioned on the right side of the base 1 is fixedly connected with the right end of a rotating shaft 11, the sector gear 7 and the gear 8 are both positioned in the base 1, the sector gear 7 is fixedly arranged on the oscillating shaft 6, the gear 8 meshed with the sector gear 7 is fixed on the rotating shaft 11, and the oscillating device drives the oscillating shaft 6 to oscillate so as to realize the oscillation of a workpiece arranged on the rotating shaft 11; specifically, the sector gear 7 and the gear 8 are fixedly connected with the swinging shaft 6 and the rotating shaft 11 through keys respectively, and the swinging shafts 6 on the two sides of the sector gear 7 are provided with check rings 12 to prevent the sector gear 7 from swinging left and right; specifically, all system has on the base 1 both sides board upper end inside wall and is located between two location bosss 13 with location boss 13 and gear 8 that the through-hole that corresponds position department set up with one heart, install retaining ring 12 and retaining ring 12 that are used for 11 axial positioning to the pivot on 11 and be located the base 1 right side, avoid pivot 11 and install the gear axial displacement in pivot 11.

When the oil cavity grinding machine works, the end face of a workpiece is fixedly connected with the right end face of the connecting disc 9 through a screw, the main shaft of the machine tool transmits rotary motion to the drive plate 3, the drive shaft 4 slides in the guide groove 5 of the swing rod 2, the swing rod 2 can swing within a certain angle around the axis of the swing shaft 6, the swing rod 2 drives the swing shaft 6 to swing, the motion is transmitted to the rotating shaft 11 through the sector gear 7 and the gear 8 meshed with the sector gear, and therefore the swing motion of the workpiece on the connecting disc 9 and the connecting disc 9 fixed at the right end of the rotating shaft 11 is achieved, the oil cavity of the workpiece can be ground, after grinding of one oil cavity is completed, the workpiece is rotated by a corresponding angle and then is fixedly connected with the connecting disc 9, grinding of a second oil cavity can be achieved, when the included angle of the oil cavity is changed, the swing angle can be.

The technical scheme is that a swinging device and a power transmission device connected with the swinging device are arranged on a base 1 fixed on a working table of a machine tool, the swinging of a workpiece arranged on the power transmission device is realized after the swinging of the swinging device is driven by a machine tool spindle, the problem that the workpiece cannot be ground and processed on an oil cavity of the workpiece because the traditional machine tool headstock drives the workpiece to rotate is solved, the workpiece swings in a required angle range to finish grinding and processing the oil cavity of the workpiece, a drive plate 3 connected with the machine tool spindle and a drive shaft 4 eccentrically arranged on the drive plate 3 are adopted to stir a swing rod 2 to swing, the rotary motion of the machine tool spindle is converted into the swing motion of a rotating shaft 11 by taking an axis as a center, the structure is simple, the design is novel and easy to realize, a plurality of unthreaded holes with different eccentric amounts from the rotating center of the drive plate 3 are formed on the drive plate 3, and the drive, the workpiece swinging at different oil cavity angles is realized by changing the position of the dial shaft 4 on the dial plate 3, the processing steps of the workpiece oil cavity are simplified, the processing difficulty is reduced, the requirement of swinging the workpiece within the oil cavity angle range is met, the swinging angle can be adjusted according to the included angle of the workpiece oil cavity, and the processing range of the workpiece oil cavity is large.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that all equivalent changes made by the contents of the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A swing grinding mechanism for processing of static and dynamic pressure bearing oil pocket has base (1), its characterized in that: the base (1) is of a U-shaped structure with an inclined bottom surface, the base (1) is detachably fixed on a working table of a machine tool, a swinging device located on the left side of the base (1) is flexibly connected with a machine tool spindle, the lower end of the swinging device is connected with an input end of a power transmission device installed on the base (1), an output end of the power transmission device is fixedly connected with a workpiece located on the right side of the base (1), and the swinging of the workpiece is achieved after the swinging device is driven by the machine tool spindle to swing.

2. The oscillating grinding mechanism for oil pocket working of static and dynamic pressure bearing according to claim 1, wherein: the swing device comprises a swing rod (2) and a drive plate (3), the drive plate (3) is flexibly connected with a machine tool spindle and fixed to the drive plate (3) through one end of a drive shaft (4) eccentrically arranged at the rotation center of the drive plate (3), a guide groove (5) is formed in the swing rod (2), the other end of the drive shaft (4) is inserted into the guide groove (5), the lower end of the swing rod (2) is fixedly connected with the input end of the power transmission device, and the machine tool spindle drives the drive plate (3) to rotate, and then the swing rod (2) is stirred through the drive shaft (4) to swing in a reciprocating mode with the connection position of the swing rod (2) and the power transmission device.

3. The oscillating grinding mechanism for oil pocket working of static and dynamic pressure bearing according to claim 2, wherein: the drive plate (3) is provided with a plurality of unthreaded holes with different eccentric amounts from the rotation center of the drive plate (3), and the drive shaft (4) is in interference fit in the unthreaded holes which are adaptive to the included angle of the oil cavity of the workpiece.

4. The oscillating grinding mechanism for oil pocket working of static and dynamic pressure bearing according to claim 1, wherein: the power transmission device comprises a swing shaft (6), a sector gear (7), a gear (8), a rotating shaft (11) and a connecting disc (9), wherein through holes corresponding to positions are formed in the upper end and the lower end of the two side plates of the base (1), bushings (10) are in interference fit in the through holes, the swing shaft (6) is in clearance fit with the bushings (10) at the lower ends of the two side plates of the base (1), the left end of the swing shaft (6) is fixedly connected with the lower end of the swing device positioned on the left side of the base (1), the axial position of the swing shaft (6) is positioned through a positioning shaft shoulder on the left side of the swing shaft (6) and a check ring (12) arranged at the right end of the swing shaft (6) and positioned on the right side of the base (1), the rotating shaft (11) is in clearance fit with the bushings (10) on the two side plates of the base (1), and the, connection pad (9) and pivot (11) right-hand member fixed connection that are located base (1) right side, sector gear (7) and gear (8) all are located base (1), sector gear (7) fixed mounting is on oscillating axle (6), and is fixed in pivot (11) with gear (8) of sector gear (7) meshing on, the pendulous device drives oscillating axle (6) and realizes the swing of installing the work piece on pivot (11) after the swing.

5. The oscillating grinding mechanism for oil pocket working of static and dynamic pressure bearing according to claim 4, wherein: the fan-shaped gear (7) and the gear (8) are fixedly connected with the swinging shaft (6) and the rotating shaft (11) through keys respectively, and the swinging shafts (6) on two sides of the fan-shaped gear (7) are provided with retaining rings (12).

6. The oscillating grinding mechanism for oil chamber working of static and dynamic pressure bearings according to claim 4 or 5, characterized in that: all system on base (1) both sides board upper end inside wall have with the through-hole of corresponding position department set up with concentric location boss (13) and gear (8) are located between two location boss (13), install retaining ring (12) and retaining ring (12) that are used for counter spindle (11) axial positioning on pivot (11) and be located base (1) right side.