CN210704419U

CN210704419U - Rotary positioning device of centerless rotary table

Info

Publication number: CN210704419U
Application number: CN201921438896.6U
Authority: CN
Inventors: 李晓龙
Original assignee: Shenyang Weizhong Revolving Machinery Co ltd
Current assignee: Shenyang Weizhong Revolving Machinery Co ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-06-09
Anticipated expiration: 2029-09-02

Abstract

The utility model relates to a gyration positioner of centerless revolving stage. Including structure frame, rail board, drive assembly, the outer supporting wheel sets up in the guide way of outer rail board, and the structure frame has the drive arrangement subassembly, and structure frame center is equipped with rotary positioning device, and the inner circle stand sets up on the workstation, and a plurality of interior supporting wheels set up in the structure frame below, and interior supporting wheel sets up in the guide way of inner rail board, and the leading wheel level sets up, a plurality of leading wheel circumference evenly distributed, and the leading wheel card is in the inner circle stand outside. The utility model discloses outer supporting wheel and gyration positioner have played support, centering to the structural frame, reduce rotatory frictional resistance, and it is poor to have solved centerless revolving stage centering function, and unable accurate positioning and high-speed rotatory problem have reduced the cost of device.

Description

Rotary positioning device of centerless rotary table

Technical Field

The utility model relates to a revolving stage technical field, specifically speaking relate to a gyration positioner of centerless revolving stage.

Background

The rotary table equipment is divided into a core rotary table and a coreless (hollow) rotary table in the appearance structure. The center rotating platform is a whole circular platform surface, a central shaft is arranged at the center of the platform surface, and the platform surface rotates around the central shaft; the table top of the centerless rotary table is of a hollow structure, namely an annular table top. For the rotating platform with the center, the center is provided with a rotating device which plays a role in supporting and positioning; for the centerless rotary table, if the center revolving device adopts a large-size rotary table bearing to perform centering and supporting functions on the centerless rotary table, the structural cost is too high, so that the centering function of the centerless rotary table is poor, and accurate positioning and high-speed rotation cannot be realized.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned problem, provide a revolving positioning device of centerless revolving stage, it is poor to solve centerless revolving stage centering function, unable accurate positioning and high-speed rotatory problem.

In order to solve the above problem, the utility model discloses a technical scheme as follows:

a rotary positioning device of a centerless rotary table comprises a structural frame, an outer rail plate and a driving assembly, wherein the outer rail plate is arranged on a workbench and is a circular guide rail, a plurality of outer supporting wheels are arranged below the structural frame and are arranged in guide grooves of the outer rail plate, a driving device component is arranged below the structural frame, the driving device component comprises a rotating motor and an inner gear ring, the inner gear ring is arranged on the workbench, a driving gear is arranged on an output shaft of the rotating motor, the driving gear is engaged with the inner gear of the inner gear ring, it is characterized in that the center of the structural frame is provided with a rotary positioning device which comprises an inner rail plate, an inner ring upright post, a guide wheel and an inner support wheel, the inner ring upright post is arranged on the workbench, a plurality of inner support wheels are arranged below the structural frame, the inner support wheels are arranged in a guide groove of the inner rail plate, the leading wheel level sets up, and a plurality of leading wheel circumference evenly distributed, and the leading wheel card is in the inner circle stand outside.

Furthermore, a centering wheel is arranged below the structure frame on the outer side of the outer supporting wheel, the centering wheel is horizontally arranged, the plurality of centering wheels are uniformly distributed on the circumference, and the centering wheel is clamped on the outer side of the inner gear ring.

Furthermore, the wheel carrier of the outer supporting wheel and the wheel carrier of the inner supporting wheel are vertically hinged with the structural frame through a shaft pin.

Compared with the prior art, the utility model has the beneficial characteristics that:

the outer supporting wheel of the utility model is arranged in the guide groove of the outer rail plate, and the rotation of the outer supporting wheel to the structural frame plays a role in guiding and positioning, thereby reducing the function of rotary friction resistance;

the inner support wheel is arranged in the guide groove of the inner rail plate and plays roles in supporting, guiding and centering the center of the structural frame; the guide wheels are uniformly distributed on the circumference, are clamped on the outer side of the inner ring upright post, and play a role in accurate centering on the structure frame, so that the driving gear is always meshed with the inner teeth of the inner gear ring, and the structure frame can be ensured to rotate at a high speed;

the inner ring supporting wheel and the outer ring supporting wheel play a double guiding role in rotating the structure frame;

the utility model discloses outer supporting wheel and gyration positioner have played support, centering to the structural frame, reduce rotatory frictional resistance, and it is poor to have solved centerless revolving stage centering function, unable accurate positioning and high-speed rotatory problem, and rotary bearing has been saved to configuration optimization, has reduced the cost of device.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Description of the drawings:

FIG. 1 is a front view of the centerless rotary table of the present invention;

FIG. 2 is a top view of the centerless rotary table of the present invention;

fig. 3 is a front view of the rotary positioning device of the present invention;

fig. 4 is a top view of the rotary positioning device of the present invention;

reference numerals: the structure frame-1, the outer rail plate-2, the outer supporting wheel-4, the rotating motor-51, the inner gear ring-52, the rotary positioning device-6, the inner rail plate-61, the inner ring upright post-62, the guide wheel-63, the inner supporting wheel-64 and the centering wheel-7.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

Referring to the attached drawings 1-4 of the specification, a rotary positioning device of a centerless rotary table comprises a structural frame 1, an outer rail plate 2 and a driving assembly, wherein the outer rail plate 2 is arranged on a workbench, the outer rail plate 2 is a circular guide rail, a plurality of outer supporting wheels 4 are arranged below the structural frame 1, the outer supporting wheels 4 are arranged in guide grooves of the outer rail plate, the outer supporting wheels 4 support and guide the structural frame 1 and reduce friction resistance in the rotating process, the driving assembly is arranged below the structural frame and comprises a rotary motor 51 and an inner gear ring 52, the inner gear ring 52 is arranged on the workbench, a driving gear is arranged on an output shaft of the rotary motor and is meshed with inner teeth of the inner gear ring, the rotary motor is fixed on the structural frame, the driving gear rotates under the driving of the rotary motor, and the inner gear ring gear is fixed on the workbench and drives the structural frame to rotate in the autorotation process, the structure frame center is equipped with gyration positioner 6, and it includes inner rail board 61, inner circle stand 62, leading wheel 63, interior supporting wheel 64, and inner circle stand 62 sets up on the workstation, and a plurality of interior supporting wheels 64 set up in structure frame 1 below, and interior supporting wheel 64 sets up in the guide way of inner rail board, and leading wheel 63 level sets up, and a plurality of leading wheels 63 circumference evenly distributed, and leading wheel 63 blocks in the inner circle stand 62 outside. The center of the inner support wheel pair structure frame plays a role in supporting, guiding and centering, and the guide wheel pair structure frame plays a role in accurate centering, so that the driving gear is always meshed with the inner teeth of the inner gear ring, and the structure frame can rotate at a high speed.

For the above specific embodiment, further, a centering wheel 7 is arranged below the structure frame outside the outer supporting wheel, the centering wheel is horizontally arranged, the plurality of centering wheels are uniformly distributed on the circumference, and the centering wheel is clamped outside the inner gear ring. The centering wheel plays a precise centering role on the structure frame, so that the driving gear is always meshed with the inner teeth of the inner gear ring, and the structure frame can rotate at a high speed.

For another embodiment, the wheel frame of the supporting wheel is vertically hinged with the structural frame through a shaft pin. The supporting wheel can be along with the change of rail frame radian and self-modulation angle at the pivoted in-process, makes the supporting wheel can be along with the rail frame, rotates by oneself in the guide way of rail frame, reduces the frictional resistance of structural frame rotation process.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred embodiments of the present invention, and the present invention is not limited by the above preferred embodiments, and various changes and modifications can be made without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the present invention as claimed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A rotary positioning device of a centerless rotary table comprises a structural frame, an outer rail plate and a driving assembly, wherein the outer rail plate is arranged on a workbench, the outer rail plate is a circular guide rail, a plurality of outer supporting wheels are arranged below the structural frame, the outer supporting wheels are arranged in guide grooves of the outer rail plate, the driving assembly is arranged below the structural frame and comprises a rotary motor and an inner gear ring, the inner gear ring is arranged on the workbench, a driving gear is arranged on an output shaft of the rotary motor and is meshed with inner teeth of the inner gear ring, the rotary positioning device is characterized in that the center of the structural frame is provided with the rotary positioning device which comprises an inner rail plate, an inner ring upright post, a guide wheel and an inner support wheel, the inner ring upright post is arranged on the workbench, the plurality of inner support wheels are arranged below the structural frame, the inner support wheel is arranged in the guide grooves of the inner rail plate, the guide wheel, the guide wheel is clamped at the outer side of the inner ring upright post.

2. The rotary positioning apparatus of claim 1, wherein a centering wheel is disposed below the frame outside the outer supporting wheel, the centering wheel is disposed horizontally, the plurality of centering wheels are circumferentially and uniformly distributed, and the centering wheel is engaged with the outer side of the inner gear ring.

3. The rotational positioning apparatus of a centerless rotary table as claimed in claim 1, wherein the wheel frame of the outer support wheel and the inner support wheel is vertically hinged with the structural frame by a shaft pin.