CN218081421U

CN218081421U - Rotary workbench

Info

Publication number: CN218081421U
Application number: CN202221909863.7U
Authority: CN
Inventors: 林梓杰
Original assignee: Nanjing Dongzhan Precision Machinery Co ltd
Current assignee: Nanjing Dongzhan Precision Machinery Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-12-20
Anticipated expiration: 2032-07-21

Abstract

The utility model discloses a rotary worktable, which comprises a base, a bearing sleeve, a bearing, a rotating shaft, a middle shaft fixing ring and a worktable group; a yielding hole is formed at the bottom of the base; the bearing sleeve is arranged on the base through the abdicating hole, and the bearing sleeve is provided with a first limiting bulge; the bearing comprises an outer ring, an inner ring and rolling bodies arranged in the outer ring and the inner ring, the upper end of the outer ring is abutted against the first limiting bulge, and the outer side of the outer ring is abutted against the bearing sleeve; the rotating shaft is rotatably arranged in the base, and the outer side wall of the rotating shaft is abutted against the inner side of the inner ring; the middle shaft fixing ring is detachably arranged at the end part of the rotating shaft, and a second limiting bulge is arranged on the middle shaft fixing ring and abuts against the lower end of the inner ring; the workbench set is arranged on the rotating shaft and rotates along with the rotating shaft. The utility model discloses a set up the bearing to can install the bearing fast, thereby reduce the pivot beat.

Description

Rotary workbench

Technical Field

The utility model relates to a machining center lathe technical field, in particular to swivel work head.

Background

In the field of conventional machining, a rotary table is usually mounted on a horizontal machining center machine, and four-axis linkage machining is performed on parts in a fourth axis manner. The rotary workbench can reduce the clamping frequency in the part machining process, so that the precision is poor and the efficiency is poor, a plurality of machining center machines can be operated by one person, and the management cost is reduced.

The rotating shaft of the traditional rotating workbench has a deflection phenomenon with a larger amplitude in the rotating process, thereby influencing the use. In view of the above, the present inventors have made extensive studies on the above-mentioned drawbacks of the prior art, and have made this invention.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the above-mentioned technology to a certain extent. Therefore, the utility model aims to provide a rotary worktable, it is through setting up the bearing to can install the bearing fast, the installation effectiveness is high, can reduce the pivot beat.

In order to achieve the above object, an embodiment of the present invention provides a rotary worktable, which includes a base, a bearing housing, a bearing, a rotating shaft, a middle shaft fixing ring and a worktable set;

a yielding hole is formed at the bottom of the base; the bearing sleeve is arranged on the base through the abdicating hole, and the bearing sleeve is provided with a first limiting bulge; the bearing comprises an outer ring, an inner ring and rolling bodies arranged in the outer ring and the inner ring, the upper end of the outer ring is abutted against the first limiting bulge, and the outer side of the outer ring is abutted against the bearing sleeve; the rotating shaft is rotatably arranged in the base, and the outer side wall of the rotating shaft is abutted against the inner side of the inner ring; the middle shaft fixing ring is detachably arranged at the end part of the rotating shaft, and a second limiting bulge is arranged on the middle shaft fixing ring and abuts against the lower end of the inner ring; the workbench set is arranged on the rotating shaft and rotates along with the rotating shaft.

Further, the base is provided with a first mounting surface, a first mounting hole is formed in the first mounting surface, a second mounting surface is arranged on the bearing sleeve, a second mounting hole matched with the first mounting hole is formed in the second mounting surface, and the bearing sleeve is mounted on the base through a correction jig so that the axial center line of the bearing sleeve coincides with the axial center line of the base.

Furthermore, the bottom of the rotating shaft is provided with an external thread, and the middle shaft fixing ring is provided with an internal thread matched with the external thread.

Furthermore, the upper end of the rotating shaft comprises a first connecting surface and a second connecting surface; the workbench set comprises a workbench disc and a workbench center, the workbench disc is arranged on the first connecting surface, and the workbench center is arranged on the second connecting surface.

Further, still include positioning mechanism, positioning mechanism sets up down the fluted disc including setting up in the pivot outside, the outer fluted disc of going up of fixed connection on the base, fixed connection is gone up the fluted disc in the workstation dish and is ordered about the hydraulic oil that the fluted disc was close to outer fluted disc and the inner fluted disc of going up down, sets up down the tooth on the lower fluted disc, set up on the outer fluted disc can with the first tooth of going up of tooth meshing down, set up on the inner fluted disc can with the second of tooth meshing down go up the tooth.

The worm is connected with the driving motor and driven by the driving motor to rotate, the worm wheel is connected with the worm and driven by the rotating worm to rotate, the worm wheel is connected with the worm wheel fixing block, and the worm wheel fixing block is connected with the rotating shaft, so that the rotating worm wheel drives the worm wheel fixing block to rotate, and the worm wheel fixing block rotates to drive the rotating shaft to rotate.

After the structure of the oil adding device is adopted, the utility model relates to a rotary worktable, it has following beneficial effect at least:

when the bearing is used, the outer side of the outer ring of the bearing is abutted to the bearing sleeve, the inner ring of the bearing is abutted to the outer side wall of the rotating shaft and rotates along with the rotating shaft, and the bearing plays a role in supporting and limiting, so that the deflection amplitude generated by the rotating shaft is reduced when the rotating shaft rotates, and the rotating shaft rotates more smoothly. When the bearing is installed, the bearing is sleeved into the outer wall of the rotating shaft, then the middle shaft fixing ring is installed, the second limiting bulge on the middle shaft fixing ring is abutted against the lower end of the inner ring, the first limiting bulge is abutted against the upper end of the outer ring, the installation of the bearing is completed, the quick installation of the bearing is realized, and the installation efficiency is high.

And the bearing sleeve is arranged on the base through the correction jig, so that the axial central line of the bearing sleeve is coincided with the axial central line of the base, the installation of the rotating shaft is facilitated, the axial central line of the rotating shaft is coincided with the axial central line of the base, and the deflection amplitude generated by the rotating shaft is further reduced when the rotating shaft rotates.

Compared with the prior art, the utility model discloses a set up base, bearing housing, bearing, pivot, the solid fixed ring of axis and workstation group, can install the bearing fast, installed the bearing after, the bearing plays support and limiting displacement, when the pivot rotates, reduces pivot beat range, and is more smooth and easy when the pivot rotates.

Drawings

Fig. 1 is a schematic structural view of a rotary table according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a rotary table base according to an embodiment of the present invention;

fig. 3 is an exploded view of a rotary table according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a rotary table according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram illustrating the use of the calibration jig to determine the center of a circle of the base according to the embodiment of the present invention.

Description of the reference symbols

The positioning device comprises a base 1, a yielding hole 11, a first mounting surface 12, a first mounting hole 13, a bearing sleeve 2, a first limiting protrusion 21, a second mounting surface 22, a second mounting hole 23, a bearing 3, an outer ring 31, an inner ring 32, a rolling body 33, a rotating shaft 4, an external thread 41, a first connecting surface 42, a second connecting surface 43, a middle shaft fixing ring 5, a second limiting protrusion 51, an internal thread 52, a workbench group 6, a workbench disc 61, a workbench center 62, a correction jig 7, a placing plate 71, a yielding mounting hole 711, an expansion bracket 72, a mounting plate 73, a dial indicator 74, a mounting rod 75, an adjusting rod 76, a positioning mechanism 8, a lower fluted disc 81, an outer upper fluted disc 82, an inner upper fluted disc 83, a driving mechanism 9, a scroll rod 91, a turbine 92 and a turbine fixing block 93.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 5, an embodiment of the present invention provides a rotary worktable, which includes a base 1, a bearing housing 2, a bearing 3, a rotating shaft 4, a middle shaft fixing ring 5, and a worktable group 6; a yielding hole 11 is formed at the bottom of the base 1; the bearing sleeve 2 is arranged on the base 1 through the abdicating hole 11, and the bearing sleeve 2 is provided with a first limiting bulge 21; the bearing 3 comprises an outer ring 31, an inner ring 32 and rolling bodies 33 arranged in the outer ring 31 and the inner ring 32, the upper end of the outer ring 31 is propped against the first limiting bulge 21, and the outer side of the outer ring 31 is propped against the bearing sleeve 2; the rotating shaft 4 is rotatably arranged in the base 1, and the outer side wall of the rotating shaft 4 is abutted against the inner side of the inner ring 32; the middle shaft fixing ring 5 is detachably arranged at the end part of the rotating shaft 4, a second limiting bulge 51 is arranged on the middle shaft fixing ring 5, and the second limiting bulge 51 is abutted against the lower end of the inner ring 32; the working table group 6 is arranged on the rotating shaft 4 and rotates along with the rotating shaft 4.

Thus, the utility model relates to a rotary worktable, when using, the outer lane 31 outside of bearing 3 supports and leans on bearing housing 2, and the inner circle 32 of bearing 3 supports and leans on the lateral wall that leans on pivot 4 and rotates along with pivot 4, and bearing 3 plays and supports and limiting displacement for when pivot 4 rotates, reduce pivot 4 and produce the beat range, it is more smooth and easy when pivot 4 rotates. When the bearing 3 is installed, the bearing sleeve 2 is inserted into the outer wall of the rotating shaft 4, then the middle shaft fixing ring 5 is installed, the second limiting bulge 51 on the middle shaft fixing ring 5 is abutted against the lower end of the inner ring 32, the first limiting bulge 21 is abutted against the upper end of the outer ring 31, the installation of the bearing 3 is completed, the quick installation of the bearing 3 is realized, and the installation efficiency is high.

Optionally, the base 1 is provided with a first mounting surface 12, the first mounting surface 12 is provided with a first mounting hole 13, the bearing sleeve 2 is provided with a second mounting surface 22, the second mounting surface 22 is provided with a second mounting hole 23 matched with the first mounting hole 13, and the bearing sleeve 2 is mounted on the base 1 through the correcting jig 7 so that the axial center line of the bearing sleeve 2 coincides with the axial center line of the base 1.

Wherein, this correction tool 7 can be including supplying place board 71 that base 1 placed, the expansion bracket 72 of adjustable length, mounting panel 73 and amesdial 74, place and set up the mounting hole 711 of stepping down on the board 71, expansion bracket 72 one end sets up on placing board 71, mounting panel 73 one end is connected with the expansion bracket 72 other end, rotatable setting installation pole 75 on the mounting panel 73, the axial centerline of installation pole 75 is perpendicular to places board 71, the rotatable setting of amesdial 74 is at the tip of installation pole 75 in order to adjust the angle of amesdial 74 and installation pole 75. In order to adjust the angle of the dial indicator 74, the dial indicator 74 is connected with the mounting rod 75 through the adjusting rod 76, one end of the adjusting rod 76 is rotatably connected with the mounting rod 75, and the other end of the adjusting rod 76 is rotatably connected with the dial indicator 74, so that the end part of the dial indicator 74 can abut against different positions to be corrected. The dial indicator 74 is a length measuring instrument that converts a general linear displacement (linear motion) into a rotational motion of a pointer by a gear or a lever and then performs reading on a dial, and the dial indicator 74 is prior art and will not be described herein.

During the installation, place base 1 in earlier on placing board 71, adjust the angle of expansion bracket 72 length and amesdial 74 for the tip of amesdial 74 and base 1's inside wall contact, rotatory installation pole 75 makes amesdial 74 rotate around base 1's inside wall, adjusts base 1 position, and when amesdial 74 rotated around base 1's inside wall, the pointer indicated to a certain position and was motionless. The inner side wall of the base 1 comprises a bearing sleeve 2 mounting surface, when the position of the base 1 is adjusted, the dial indicator 74 rotates around the bearing sleeve mounting surface of the base 1, and after the pointer points to a certain position and does not move, the position of the circle center of the base 1 is confirmed.

When installation bearing housing 2, arrange bearing housing 2 in base 1 bottom from abdicating mounting hole 711, make first installation face 12 support and lean on second installation face 22, adjust the angle of expansion bracket 72 length and amesdial 74, make the tip of amesdial 74 and the inside wall contact of bearing housing 2, rotatory installation pole 75, make amesdial 74 rotate round the inside wall of bearing housing 2, adjust the 2 positions of bearing housing, when the inside wall of until amesdial 74 round bearing housing 2 rotates, the pointer indicates to a certain position and motionless, so that the centre of a circle of bearing housing 2, the centre of a circle of base 1 is located same straight line. When adjusting bearing housing 2, can pass first mounting hole 13 and second mounting hole 23 with bearing housing 2 through the screw earlier, make bearing housing 2 half fixed in base 1 bottom, bearing housing 2 can slightly remove this moment, after confirming position bearing housing 2 position through amesdial 74, the centre of a circle of bearing housing 2 this moment, the centre of a circle of base 1 is located collinear, and the axial centerline of bearing housing 2 and the axial centerline of base 1 are located collinear, then lock the screw, thereby accomplish the installation of bearing housing 2.

The bearing sleeve 2 is installed on the base 1 through the correction jig 7, and the axial center line of the bearing sleeve 2 can be coincided with the axial center line of the base 1, so that the rotating shaft 4 can be installed conveniently, the axial center line of the rotating shaft 4 can be coincided with the axial center line of the base 1 conveniently, and the deflection amplitude generated by the rotating shaft 4 can be further reduced when the rotating shaft 4 rotates.

In this example, the bottom of the rotating shaft 4 is provided with an external thread 41, and the middle shaft fixing ring 5 is provided with an internal thread 52 matched with the external thread 41. When the installation is carried out, only the middle shaft fixing ring 5 is screwed at the bottom of the rotating shaft 4, so that the bearing 3 moves upwards, the lower end of the inner ring 32 of the bearing 3 is driven to abut against the second limiting bulge 51 on the middle shaft fixing ring 5, and the upper end of the outer ring 31 of the bearing 3 abuts against the first limiting bulge 21, so that the bearing 3 is quickly installed.

In some examples, the upper end of the shaft 4 includes a first connection face 42 and a second connection face 43; the table set 6 comprises a table plate 61 and a table center 62, the table plate 61 being mounted on the first connection face 42 and the table center 62 being mounted on the second connection face 43.

The worktable disk 61 is installed on the first connecting surface 42 and rotates along with the rotation of the rotating shaft 4, the worktable center 62 is installed on the second connecting surface 43 and rotates along with the rotation of the rotating shaft 4, and the worktable center 62 and the worktable disk 61 can be installed on the rotating shaft 4 through the correcting jig 7, so that the deflection amplitude generated by the rotation of the worktable center 62 and the worktable disk 61 is reduced.

Further, still include positioning mechanism 8, positioning mechanism 8 sets up fluted disc 81 down including setting up in the 4 outsides of pivot, fixed connection goes up fluted disc 82 outward on base 1, fixed connection goes up fluted disc 83 and drives about the hydraulic oil that fluted disc 81 is close to outer upper fluted disc 82 and interior upper fluted disc 83 down in the interior of workstation dish 61, set up down the tooth on the lower fluted disc 81, go up the fluted disc 82 outward and go up the tooth with the first tooth that goes up of tooth meshing down, go up the fluted disc 83 and go up the tooth with the second of tooth meshing down.

When needing positioning table group 6, pour into hydraulic oil, make lower fluted disc 81 be close to outer upper fluted disc 82 and interior upper fluted disc 83, make outer upper fluted disc 82 and the meshing of lower fluted disc 81, interior upper fluted disc 83 meshes with lower fluted disc 81, because outer upper fluted disc 82 is fixed motionless on base 1, interior upper fluted disc 83 and workstation dish 61 fixed connection, thereby realize workstation dish 61 location, locking table group 6 makes it can not wave in the processing, realize accurate processing.

In some examples, the driving mechanism 9 for driving the rotating shaft 4 to rotate is further included, the driving mechanism 9 includes a driving motor, a worm 91, a worm gear 92, and a worm gear fixing block 93, the worm 91 is connected to the driving motor and driven to rotate by the driving motor, the worm gear 92 is connected to the worm 91 and driven to rotate by the rotating worm 91, the worm gear 92 is connected to the worm gear fixing block 93, and the worm gear fixing block 93 is connected to the rotating shaft 4, so that the rotating worm gear 92 drives the worm gear fixing block 93 to rotate, and the worm gear fixing block 93 rotates to drive the rotating shaft 4 to rotate.

The driving motor drives the worm 91 to rotate, the worm 91 rotates to drive the worm wheel 92 to rotate, the worm wheel 92 rotates to drive the rotating shaft 4 to rotate, and the rotating shaft 4 rotates to drive the workbench set 6 to rotate.

Compared with the prior art, the utility model discloses a set up base 1, bearing housing 2, bearing 3, pivot 4, the solid fixed ring of axis 5 and workstation group 6, can install bearing 3 fast, installed bearing 3 back, bearing 3 plays and supports and limiting displacement, and when pivot 4 rotated, reduced 4 beat ranges of pivot, it was more smooth and easy when pivot 4 rotated.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.

Claims

1. A rotary table, characterized in that: comprises a base, a bearing sleeve, a bearing, a rotating shaft, a middle shaft fixing ring and a workbench group;

2. The rotary table of claim 1, wherein: the base sets up first installation face, sets up first mounting hole on the first installation face, sets up the second installation face on the bearing housing, sets up on the second installation face with first mounting hole complex second mounting hole, the bearing housing is installed on the base so that the axial centerline of bearing housing and the axial centerline coincidence of base through proofreading and correct the tool.

3. The rotary table of claim 1, wherein: the bottom of the rotating shaft is provided with an external thread, and the middle shaft fixing ring is provided with an internal thread matched with the external thread.

4. The rotary table of claim 1, wherein: the upper end of the rotating shaft comprises a first connecting surface and a second connecting surface; the workbench set comprises a workbench disc and a workbench center, the workbench disc is arranged on the first connecting surface, and the workbench center is arranged on the second connecting surface.

5. The rotary table of claim 1, wherein: still include positioning mechanism, positioning mechanism sets up down the fluted disc including setting up in the pivot outside, the outer fluted disc of going up of fixed connection on the base, fixed connection is gone up the fluted disc in the workstation dish and orders about the hydraulic oil that the fluted disc is close to outer fluted disc and the inner fluted disc of going up down, sets up down the tooth on the lower fluted disc, set up on the outer fluted disc can with the first tooth of going up of lower tooth meshing, set up on the inner fluted disc can with the second of lower tooth meshing go up the tooth.

6. The rotary table of claim 1, wherein: the worm is connected with the driving motor and driven by the driving motor to rotate, the worm wheel is connected with the worm and driven by the rotating worm to rotate, the worm wheel is connected with the worm wheel fixing block, the worm wheel fixing block is connected with the rotating shaft, and therefore the rotating worm wheel drives the worm wheel fixing block to rotate, and the worm wheel fixing block rotates to drive the rotating shaft to rotate.