CN213857682U - Numerical control rotary table for laser processing - Google Patents
Numerical control rotary table for laser processing Download PDFInfo
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- CN213857682U CN213857682U CN202022961304.8U CN202022961304U CN213857682U CN 213857682 U CN213857682 U CN 213857682U CN 202022961304 U CN202022961304 U CN 202022961304U CN 213857682 U CN213857682 U CN 213857682U
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Abstract
The utility model relates to a numerical control swivel work head for laser beam machining, including workstation base, workstation, axis of rotation, support ring, a plurality of support ball and kingpin, the support ring is installed on the workstation base, is equipped with thrust bearing between support ring and the workstation, stretches out a supporting bench on the axis of rotation outward, is connected with the workstation on the supporting bench, is connected with the worm wheel down, is equipped with the first location step of installation kingpin and the second location step of installation support ball on the supporting bench, and the kingpin setting is in the inboard of support ring, and the support ball setting is in the bottom of support ring. The utility model discloses thrust bearing bears the axial force, and a plurality of support balls of annular overall arrangement mainly also are the axial atress, realize the stable axial support to the workstation, and the bearing can realize the radial restraint to axis of rotation and support ring, workstation base, and simple structure is compact, and processing convenient assembling is with low costs, is convenient for maintain, has improved rotary table's axial and radial bearing capacity.
Description
Technical Field
The utility model relates to a numerical control rotary worktable for laser beam machining belongs to digit control machine tool part technical field.
Background
The numerical control rotary worktable is an indispensable functional part of a numerical control boring and milling machine, a gantry machining center, a numerical control gear milling machine, a gear grinding machine and the like, is a worktable which is arranged on a rotary multi-station machine tool and is used for completing one-step machining of multiple procedures of parts, and can carry out numerical control indexing on a workpiece under the driving of a related system or carry out continuous rotary cutting machining on the workpiece in linkage with the machine tool.
The requirements of the machine tool and the numerical control rotary table on the corner precision, the surface roughness and the like of the existing machined part are high, and the factors of the numerical control rotary table such as the motion precision, the bearing capacity, the capacity of coping with impact force and the like relate to the production and machining capacity and the efficiency of the whole machine tool. The existing numerical control rotary worktable is complex in structure, high in cost and difficult to maintain and adjust, and meanwhile, the worktable is supported only by a bearing, so that the bearing capacity of the bearing in the axial and radial directions is limited, and the application conditions of the movement precision and the bearing capacity of the worktable are not ideal.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to prior art exists, provide a simple structure is compact, and processing convenient assembling is swift, no matter be the axial or radial its bearing capacity big be used for laser beam machining's numerical control swivel work head.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a numerical control rotary worktable for laser processing comprises a worktable base, a worktable arranged on the worktable base, a rotating shaft, a support ring, a plurality of support balls and a plurality of rolling pins, wherein a through hole is formed in the rotating shaft, the rotating shaft rotates under the action of a driving mechanism, the driving mechanism comprises a driving motor, a worm and a worm wheel, the worm wheel is arranged on the rotating shaft, the worm is rotatably arranged on the worktable base, one end of the worm is connected with an output shaft of the driving motor, and the other end of the worm is meshed with the worm wheel;
the supporting table is characterized in that a positioning groove is formed in the base of the working table, the supporting ring is fixedly installed on the positioning groove, a thrust needle bearing is arranged between the supporting ring and the working table, a supporting table extends out of the outer surface of the rotating shaft, the upper portion of the supporting table is connected with the working table, the lower portion of the supporting table is connected with the worm gear, a first positioning step used for installing a plurality of needles and a second positioning step used for installing a plurality of supporting balls are arranged on the supporting table, the needles are arranged on the inner side of the supporting ring, and the supporting balls are arranged at the bottom of the supporting ring.
The utility model has the advantages that: the needle roller of the thrust needle roller bearing is supported at the bottom of the workbench, the axial force of the workbench is mainly borne, and in addition, a plurality of support balls in annular arrangement are mainly subjected to axial stress, so that stable axial support for the workbench can be realized. In a word, the utility model discloses simple structure is compact, and processing convenient assembling is with low costs, and the maintenance of being convenient for has improved rotary worktable's axial and radial bearing capacity, bears the motion precision that has stably guaranteed rotary worktable, is equipped with the through-hole in the axis of rotation, and cable or laser are worn in the middle of the through-hole can be convenient for, can be used to precision finishing such as laser beam machining, optical adjustment and detect.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Furthermore, a positioning adjusting pad is arranged between the workbench and the support table, and the positioning adjusting pad is arranged on the inner side of the thrust needle roller bearing.
The beneficial effect of adopting above-mentioned further scheme is that, can fix a position thrust bearing's inboard on the one hand, on the other hand adjusts the distance between workstation and the axis of rotation, realizes the axial clearance adjustment of workstation.
Further, the support ring with still be equipped with the supporting pad between the constant head tank, the supporting pad sets up the outside of support ball.
The further scheme has the advantages that the outer side of the supporting ball is positioned on one hand, and the axial meshing position of the worm and the worm wheel can be adjusted on the other hand.
Further, a plurality of the needle rollers are mounted on the first positioning step through a needle roller cage.
The beneficial effect of adopting above-mentioned further scheme is that, the kingpin is installed on the holder, then will have the holder of kingpin to install on first location step, and simple to operate has improved the stability of kingpin between support ring and brace table on the one hand, realizes the radial restraint location to the support ring on the other hand.
Further, a plurality of the support balls are mounted on the second positioning step by a ball holder.
The beneficial effect who adopts above-mentioned further scheme is that, a plurality of support balls are installed on the ball holder, then will install the ball holder of support ball and install on the second location step, simple to operate on the one hand, and on the other hand has improved the stability on the support ball second location step, and the support ball bears the axial atress, realizes bearing the axial of workstation.
Furthermore, a rotary oil seal is arranged between the workbench base and the rotating shaft.
Adopt the beneficial effect of above-mentioned further scheme to be, reduce the wearing and tearing between axis of rotation and the workstation base on the one hand, on the other hand avoids spilling over of lubricating grease.
Furthermore, a labyrinth seal is arranged between the workbench and the workbench base.
Adopt above-mentioned further scheme's beneficial effect be, prevent that lubricating grease from being thrown away at the rotation in-process of workstation.
Furthermore, the workbench base is provided with a mounting hole for mounting a fastening bolt, and the support ring is mounted on the workbench base through the fastening bolt.
Adopt the beneficial effect of above-mentioned further scheme to be, realize the fixed mounting of support ring on the workstation base through fastening bolt.
Furthermore, an eccentric sleeve is arranged on the workbench base, the worm is connected with the eccentric sleeve through a bearing and/or a shaft sleeve, and a motor base of the driving motor is arranged on the eccentric sleeve.
The further scheme has the advantages that the installation and the positioning of the motor and the screw rod are realized, the meshing clearance of the worm gear and the worm can be eliminated by adjusting the eccentricity of the eccentric sleeve, the small-clearance precise transmission is realized, and the indexing precision of the worm gear is improved.
Further, an output shaft of the driving motor is connected with the worm through a coupling.
The beneficial effect who adopts above-mentioned further scheme is that, the motor rotates, drives the worm through the shaft coupling and rotates, realizes the power drive to the worm.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic sectional view taken along the line A-A in FIG. 1 (90 degrees clockwise rotation);
in the figure, 1, a workbench base; 2. a work table; 3. a rotating shaft; 301. a support table; 302. a first positioning step; 303. a second positioning step; 4. a worm gear; 5. a worm; 6. a thrust needle bearing; 7. a support ring; 8. a support ball; 9. rolling needles; 10. rotating the oil seal; 11. labyrinth sealing; 12. positioning the adjusting pad; 13. a support pad; 14. mounting holes; 15. a bolt; 16. an eccentric sleeve; 17. a drive motor; 18. a motor base; 19. a coupling is provided.
Detailed Description
The principles and features of the present invention are described below in conjunction with examples, which are set forth only to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 and 2, a numerical control rotary table for laser processing includes a table base 1, a table 2 disposed on the table base, a rotating shaft 3, a support ring 7, a plurality of support balls 8 and a plurality of roller pins 9, wherein a through hole is formed in the rotating shaft, the rotating shaft rotates under the action of a driving mechanism, the driving mechanism includes a driving motor, a worm 5 and a worm wheel 4, the worm wheel is mounted on the rotating shaft, the worm is rotatably mounted on the table base, one end of the worm is connected with an output shaft of the driving motor, and the other end of the worm is meshed with the worm wheel;
the supporting device comprises a workbench, a supporting ring, a thrust needle bearing 6, a supporting table 301, a worm wheel, a first positioning step 302 and a second positioning step 303, wherein the workbench base is provided with a positioning groove, the supporting ring is fixedly arranged on the positioning groove, the thrust needle bearing 6 is arranged between the supporting ring and the workbench, the outer surface of the rotating shaft extends out of the supporting table, the upper part of the supporting table is connected with the workbench, the lower part of the supporting table is connected with the worm wheel, the supporting table is provided with the first positioning step 302 for installing a plurality of needles and the second positioning step 303 for installing a plurality of supporting balls, the needles are arranged on the inner side of the supporting ring, and the supporting balls are arranged at the bottom of the supporting ring.
A plurality of support balls and kingpins form a dense ball shafting structure, and the kingpins and the support balls are in interference fit with the shaft, so that small radial and axial gaps can be realized after assembly, radial runout is reduced, transmission and indexing precision are improved, the motion precision of the rotary worktable is ensured, and the service life of the rotary worktable is prolonged.
The support ball can be a steel ball.
A positioning adjusting pad 12 is arranged between the workbench and the support table, and the positioning adjusting pad is arranged on the inner side of the thrust needle roller bearing. On one hand, the inner side of the thrust needle bearing can be positioned, on the other hand, the distance between the workbench and the rotating shaft is adjusted, and the axial clearance adjustment of the workbench is realized.
The support ring with still be equipped with supporting pad 13 between the constant head tank, the supporting pad sets up the outside of support ball. On the one hand, the outer side of the supporting ball is positioned, and on the other hand, the axial meshing position of the worm and the worm wheel can be adjusted.
The plurality of needle rollers are mounted on the first positioning step through a needle roller retainer. The rolling needles are arranged on the retainer, and then the retainer with the rolling needles is arranged on the first positioning step, so that on one hand, the installation is convenient, on the other hand, the stability of the rolling needles between the support ring and the support table is improved, and the radial constraint positioning of the support ring is realized.
The plurality of support balls are mounted on the second positioning step by a ball retainer. A plurality of support balls are installed on the ball retainer, then the ball retainer provided with the support balls is installed on the second positioning step, on one hand, the installation is convenient, on the other hand, the stability of the second positioning step of the support balls is improved, the support balls bear axial stress, and the axial bearing of the workbench is realized.
And a rotary oil seal 10 is arranged between the workbench base and the rotating shaft. On one hand, the abrasion between the rotating shaft and the base of the workbench is reduced, and on the other hand, the overflow of lubricating grease is avoided.
A labyrinth seal 11 is arranged between the workbench and the workbench base. Preventing the lubricating grease from being thrown out in the rotating process of the workbench.
The workbench and the worm wheel are respectively connected with the supporting platform through bolts 15.
The worktable base is provided with a mounting hole 14 for mounting a fastening bolt 15, and the support ring is mounted on the worktable base through the fastening bolt. And the support ring is fixedly arranged on the base of the workbench through a fastening bolt.
The base of the workbench is provided with an eccentric sleeve 16, the worm is connected with the eccentric sleeve through a bearing and/or a shaft sleeve, and a motor base 18 of the driving motor 17 is arranged on the eccentric sleeve. The installation and the location of the motor and the screw rod are realized, the meshing clearance of the worm gear and the worm can be eliminated by adjusting the eccentricity of the eccentric sleeve, the small-clearance precise transmission is realized, and the indexing precision of the worm gear is improved.
The output shaft of the drive motor is connected to the worm via a coupling 19. The motor rotates, and the worm is driven to rotate through the coupling, so that the power drive of the worm is realized.
The thrust needle bearing supports the bottom at the workstation, it mainly bears the axial force of workstation, and a plurality of support balls of annular overall arrangement mainly are the axial atress too, can realize the stable axial support to the workstation, a plurality of kingpins vertical layout is between axis of rotation and support ring, it mainly bears the radial force, can realize axis of rotation and support ring, the radial restraint of workstation base, the weight of numerical control rotary table can greatly reduced to the design of axial and radial supporting component, especially adapted miniaturized numerical control rotary table.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A numerical control rotary worktable for laser processing is characterized by comprising a worktable base, a worktable arranged on the worktable base, a rotating shaft, a support ring, a plurality of support balls and a plurality of roller pins, wherein a through hole is formed in the rotating shaft, the rotating shaft rotates under the action of a driving mechanism, the driving mechanism comprises a driving motor, a worm and a worm wheel, the worm wheel is arranged on the rotating shaft, the worm is rotatably arranged on the worktable base, one end of the worm is connected with an output shaft of the driving motor, and the other end of the worm is meshed with the worm wheel;
the supporting table is characterized in that a positioning groove is formed in the base of the working table, the supporting ring is fixedly installed on the positioning groove, a thrust needle bearing is arranged between the supporting ring and the working table, a supporting table extends out of the outer surface of the rotating shaft, the upper portion of the supporting table is connected with the working table, the lower portion of the supporting table is connected with the worm gear, a first positioning step used for installing a plurality of needles and a second positioning step used for installing a plurality of supporting balls are arranged on the supporting table, the needles are arranged on the inner side of the supporting ring, and the supporting balls are arranged at the bottom of the supporting ring.
2. The digitally controlled rotary table of claim 1, wherein a positioning adjustment pad is provided between said table and said support table, said positioning adjustment pad being disposed inboard of said thrust needle bearings.
3. The numerically controlled rotary table according to claim 2, wherein a support pad is further provided between the support ring and the positioning groove, the support pad being disposed outside the support ball.
4. A numerically controlled rotary table according to any of claims 1 to 3, wherein a plurality of said needles are mounted on said first locating step by means of a needle cage.
5. The digitally controlled rotary table of any one of claims 1 to 3, wherein a plurality of said support balls are mounted on said second positioning step by ball retainers.
6. The numerically controlled rotary table for laser processing according to claim 1, wherein a rotary oil seal is provided between the table base and the rotary shaft.
7. The digitally controlled rotary table of claim 1, wherein a labyrinth seal is provided between the table and the table base.
8. The numerically controlled rotary table according to claim 1, wherein the table base is provided with mounting holes for mounting fastening bolts, and the support ring is mounted on the table base by the fastening bolts.
9. The numerical control rotary table according to claim 1, 2 or 3, wherein an eccentric sleeve is provided on the table base, the worm is connected with the eccentric sleeve through a bearing and/or a shaft sleeve, and a motor base of the driving motor is mounted on the eccentric sleeve.
10. A digitally controlled rotary table according to claim 1 wherein the output shaft of said drive motor is coupled to said worm by a coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022961304.8U CN213857682U (en) | 2020-12-10 | 2020-12-10 | Numerical control rotary table for laser processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022961304.8U CN213857682U (en) | 2020-12-10 | 2020-12-10 | Numerical control rotary table for laser processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213857682U true CN213857682U (en) | 2021-08-03 |
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ID=77066690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022961304.8U Active CN213857682U (en) | 2020-12-10 | 2020-12-10 | Numerical control rotary table for laser processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213857682U (en) |
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2020
- 2020-12-10 CN CN202022961304.8U patent/CN213857682U/en active Active
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