CN215950264U

CN215950264U - High-precision numerical control rotary table

Info

Publication number: CN215950264U
Application number: CN202122676443.0U
Authority: CN
Inventors: 颜建军
Original assignee: Wenling Huachi Machinery Co ltd
Current assignee: Wenling Huachi Machinery Co ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-03-04
Anticipated expiration: 2031-11-03

Abstract

The utility model provides a high-precision numerical control turntable, and belongs to the technical field of mechanical equipment. It has solved the unable problem of guaranteeing and assembling inconvenience of operation precision. This high accuracy numerical control revolving stage, including box, motor, camshaft and output shaft, the inner and motor looks swing joint of this camshaft, and the outer end of camshaft passes through bearing assembly looks swing joint with the box, the cover is equipped with the output shaft sleeve on the output shaft, output shaft sleeve circumference evenly distributed have the kingpin, the camshaft has integrated into one piece and with the cam of kingpin looks meshing, the one end of camshaft passes through coupling assembling looks swing joint with the box, coupling assembling comprises mount pad and rotating unit, the mounting hole has been seted up on the periphery wall of box, be provided with extension portion on the interior terminal surface of mount pad, the camshaft is located and sets up the mounting groove that supplies extension portion to stretch into the installation on the periphery wall of outer end, rotating unit sets up in the mounting groove. The utility model has the advantages of high operation precision and convenient assembly.

Description

High-precision numerical control rotary table

Technical Field

The utility model belongs to the technical field of mechanical equipment, and relates to a high-precision numerical control turntable.

Background

In the technical field of machine manufacturing, the rotary table is widely applied to high-precision occasions such as numerical control indexing devices, manipulator joints, military radars, automatic production lines and the like. At present, most of numerical control rotary tables adopt a servo motor to drive a worm and gear transmission mechanism to achieve higher indexing and positioning accuracy. Because the worm gear mechanism has the problem of wearing and tearing after long-time the use to produce the clearance, the graduation precision can't obtain guaranteeing. And the worm and gear type rotary table is difficult to manufacture, so that the processing cost is high, and in the actual use process, the assembly of the worm and gear avoids the use of a bearing and a mounting seat, so that the space occupancy rate inside the shell is improved, and the assembly is relatively inconvenient.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a numerical control turntable for solving the problems.

The purpose of the utility model can be realized by the following technical scheme: a high-precision numerical control rotary table comprises a box body, a motor, a cam shaft and an output shaft, wherein the motor, the cam shaft and the output shaft are arranged in the box body, the inner end of the cam shaft is movably connected with the motor, the outer end of the cam shaft is movably connected with the box body through a bearing assembly, the output shaft is driven to operate through the matching of the motor and the cam shaft, the output shaft is sleeved with an output shaft sleeve, roller pins are uniformly distributed on the output shaft sleeve in the circumferential direction, the cam shaft is provided with a cam which is integrally formed and meshed with the roller pins, one end of the cam shaft is movably connected with the box body through a connecting assembly, the connecting assembly consists of a mounting seat and a rotating unit, mounting holes for mounting the mounting seat and enabling the inside and the outside of the box body to be communicated are formed in the peripheral wall of the box body, and an extension part which extends towards the cam shaft and penetrates into the cam shaft is arranged on the inner end surface of the mounting seat, the camshaft is located and offers the mounting groove that supplies extension portion to stretch into the installation on the periphery wall of outer end, rotary unit set up in the mounting groove, and be located between camshaft and the extension portion.

In the high-precision numerical control turntable, the mounting seat is fixedly connected with the box body through a plurality of studs or screws.

In foretell high accuracy numerical control revolving stage, the rotating unit constitute by a plurality of ball, extension portion and camshaft on all seted up semi-circular slide, two semi-circular slide forms the slide that supplies the ball installation through the assembly, the camshaft lie in the periphery wall of mounting groove department and set up the pilot hole that makes mounting groove and periphery wall be linked together and supply the ball installation, the camshaft lie in the opening part of pilot hole and be provided with rather than linking firmly and connect, and be used for sealed pilot hole to prevent the sealed lid that the ball breaks away from.

In the high-precision numerical control turntable, the end face of the sealing cover, which is positioned at the center, is provided with the oil injection flow channel, and the end face of the sealing cover, which is abutted against the ball, is a cambered surface matched with the end face.

In the high-precision numerical control turntable, the upper end face of the box body, which is positioned at the mounting groove, is provided with the communicating hole which enables the inside and the outside of the box body to be communicated and facilitates the detachment of the camshaft and the mounting seat, and the opening of the box body, which is positioned at the communicating hole, is provided with the sealing plug for sealing the communicating hole.

Compared with the prior art, the high-precision numerical control turntable has the following advantages:

1. the output shaft sleeve is uniformly distributed with roller pins in the circumferential direction, the cam shaft is provided with a cam which is integrally formed and meshed with the roller pins, one end of the cam shaft is movably connected with the box body through a connecting assembly, and the arrangement of the structure ensures the operation precision;

2. be provided with the extension portion that the axial camshaft extends and extends to wear into in the camshaft on the interior terminal surface of mount pad, the camshaft is located to set up on the periphery wall of outer end and supplies extension portion to stretch into the mounting groove of installation, and rotary unit sets up in the mounting groove, and is located between camshaft and the extension portion, and the setting of above-mentioned structure has reduced the occupation space that the assembly needs, and is convenient for its assembly.

Drawings

Fig. 1 is a schematic perspective view of a disassembled part of a box body in the high-precision numerical control turntable.

Fig. 2 is a schematic sectional view of the camshaft in the high-precision numerical control turntable.

In the figure, 1, a box body; 2. a motor; 3. a camshaft; 4. an output shaft; 5. an output shaft sleeve; 6. rolling needles; 7. a mounting seat; 8. mounting holes; 9. an extension part; 10. mounting grooves; 11. a ball bearing; 12. a semicircular slideway; 13. an assembly hole; 14. a sealing cover; 15. an oil injection flow channel; 16. a communicating hole; 17. and (6) sealing the plug.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the high-precision numerical control rotary table comprises a case 1, and a motor 2, a camshaft 3 and an output shaft 4 which are arranged in the case 1, wherein the inner end of the camshaft 3 is movably connected with the motor 2, the outer end of the camshaft 3 is movably connected with the case 1 through a bearing assembly, the output shaft 4 is driven to operate through the matching of the motor 2 and the camshaft 3, an output shaft sleeve 5 is sleeved on the output shaft 4, roller pins 6 are uniformly distributed on the output shaft sleeve 5 in the circumferential direction, the camshaft 3 is provided with a cam which is integrally formed and is engaged with the roller pins 6, one end of the camshaft 3 is movably connected with the case 1 through a connecting assembly, the connecting assembly is composed of a mounting seat 7 and a rotating unit, a mounting hole 8 for mounting the mounting seat 7 and communicating the inside and the outside of the case 1 is formed on the outer circumferential wall of the case 1, an extension part 9 which extends axially towards the camshaft 3 and extends into the camshaft 3 is arranged on the inner end surface of the mounting seat 7, camshaft 3 is located and has offered the mounting groove 10 that supplies extension portion 9 to stretch into the installation on the periphery wall of outer end, and the rotating unit sets up in mounting groove 10, and is located between camshaft 3 and the extension portion 9, and the rotating unit comprises a plurality of ball 11, has all seted up semi-circular slide 12 on extension portion 9 and the camshaft 3, two semi-circular slide 12 forms the slide that supplies ball 11 to install through the assembly, camshaft 3 be located the periphery wall of mounting groove 10 department and set up the pilot hole 13 that makes mounting groove 10 be linked together and supply ball 11 to install with the periphery wall, the opening part that camshaft 3 is located pilot hole 13 is provided with and links firmly rather than mutually, and is used for sealed pilot hole 13 to prevent the sealed lid 14 that ball 11 breaks away from.

In a further elaboration, in order to limit the mounting seat 7, the mounting seat 7 is fixedly connected with the box body 1 through a plurality of studs or screws.

To put it more concretely, in order to facilitate the lubrication of the balls 11, an oil injection flow channel 15 is provided on the end surface of the sealing cover 14 located at the center, the end surface of the sealing cover 14 abutting against the balls 11 is a cambered surface matched with the end surface, a communication hole 16 which enables the inside and the outside of the box body 1 to be communicated and facilitates the detachment of the camshaft 3 and the mounting seat 7 is provided on the upper end surface of the box body 1 located at the mounting groove 10, a sealing plug 17 which seals the communication hole 16 is provided at the opening of the box body 1 located at the communication hole 16, the diameter of the sealing plug 17 is larger than that of the sealing cover 14, when the box body needs to be detached, impurities around the sealing plug 17 are cleaned, screwed out, the sealing cover 14 is detached, and the balls 11 are adsorbed out through a magnetic device or a magnetic member.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A high-precision numerical control rotary table comprises a box body (1), a motor (2), a cam shaft (3) and an output shaft (4), wherein the motor (2), the cam shaft (3) and the output shaft (4) are arranged in the box body (1), the inner end of the cam shaft (3) is movably connected with the motor (2), the outer end of the cam shaft (3) is movably connected with the box body (1) through a bearing assembly, the output shaft (4) is driven to operate through the matching of the motor (2) and the cam shaft (3), the high-precision numerical control rotary table is characterized in that an output shaft sleeve (5) is sleeved on the output shaft (4), roller pins (6) are uniformly distributed on the output shaft sleeve (5) in the circumferential direction, the cam shaft (3) is provided with a cam which is integrally formed and meshed with the roller pins (6), one end of the cam shaft (3) is movably connected with the box body (1) through a connecting assembly, and the connecting assembly consists of a mounting seat (7) and a rotating unit, the outer peripheral wall of box (1) on offer and supply installation seat (7) installation and make the inside and outside mounting hole (8) that are linked together of box (1), the interior terminal surface of installation seat (7) on be provided with axial camshaft (3) and extend and wear extension portion (9) in camshaft (3), camshaft (3) are located and offer on the outer peripheral wall of outer end and supply extension portion (9) to stretch into mounting groove (10) of installation, the rotary unit set up in mounting groove (10), and be located between camshaft (3) and extension portion (9).

2. A high precision numerical control turntable according to claim 1, characterized in that said mounting seat (7) is fixedly connected with said box body (1) by means of a plurality of studs or screws.

3. The high-precision numerical control rotary table according to claim 1, wherein the rotary unit comprises a plurality of balls (11), the extension portion (9) and the camshaft (3) are provided with semicircular slideways (12), the two semicircular slideways (12) are assembled to form a slideway for installing the balls (11), an assembling hole (13) for communicating the installation groove (10) with the peripheral wall and installing the balls (11) is formed in the peripheral wall of the installation groove (10) of the camshaft (3), the opening of the camshaft (3) in the assembling hole (13) is provided with a sealing cover (14) which is fixedly connected with the assembling hole (13) and used for sealing the assembling hole (13) and preventing the balls (11) from being separated.

4. A high-precision numerical control turntable according to claim 3, wherein the end surface of the sealing cover (14) at the center is provided with an oil filling flow channel (15), and the end surface of the sealing cover (14) abutting against the ball (11) is a cambered surface matched with the end surface.

5. The high-precision numerical control turntable according to claim 1, wherein a communication hole (16) which enables the inside and the outside of the case body (1) to be communicated and facilitates the detachment of the camshaft (3) and the mounting seat (7) is formed in the upper end surface of the case body (1) at the mounting groove (10), and a sealing plug (17) which seals the communication hole (16) is arranged at the opening of the communication hole (16) of the case body (1).