CN111152042A - Numerical control rotary table with torque motor driven by planetary reducer - Google Patents
Numerical control rotary table with torque motor driven by planetary reducer Download PDFInfo
- Publication number
- CN111152042A CN111152042A CN201811325571.7A CN201811325571A CN111152042A CN 111152042 A CN111152042 A CN 111152042A CN 201811325571 A CN201811325571 A CN 201811325571A CN 111152042 A CN111152042 A CN 111152042A
- Authority
- CN
- China
- Prior art keywords
- torque motor
- planetary reducer
- planetary
- shaft
- hollow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
- B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
- B23Q1/52—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism a single rotating pair
- B23Q1/522—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism a single rotating pair which is perpendicular to the working surface
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses a numerical control rotary table with a torque motor driven by a planetary reducer. The working table plate is supported on the sliding seat by a rotary bearing, the hollow main shaft is fixed on the working table plate, the torque motor is positioned in the inner cavity of the sliding seat, the lower end of a motor stator is fixed on a stator flange through a screw, the stator flange is fixed on the sliding seat, and the upper end of a rotor of the torque motor is fixed on a rotor flange through a screw; the planetary reducer is positioned in the inner cavity of the sliding seat, the power input end of the planetary reducer is fixed on the rotor flange, the power output end of the planetary reducer is fixed on the hollow main shaft, and the torque motor drives the planetary reducer through the rotor flange and then drives the working table plate through the hollow main shaft. The invention adopts the torque motor to drive the numerical control rotary table through the planetary reducer, and the motor is arranged in the inner cavity of the sliding seat, thereby not only increasing the transmission torque, but also reducing the appearance size of the product, and realizing the perfect combination of large torque and compact structure.
Description
Technical Field
The invention relates to the technical field of numerical control machines, in particular to a numerical control rotary table driven by a torque motor through a planetary reducer.
Background
With the development of numerical control machine tools, four-axis and five-axis linkage numerical control machine tools are more and more, and numerical control rotary tables are more and more important. The existing numerical control turntable is driven by a servo motor, a worm gear and a worm with a large reduction ratio or directly driven by a torque motor. The former has low rotating speed and low acceleration of a common workbench; the latter has large dimension and high power consumption.
Disclosure of Invention
The invention provides a numerical control turntable with a torque motor driven by a planetary reducer, which adopts the following technical scheme:
a numerical control rotary table with a torque motor driven by a planetary reducer comprises a working table plate, a sliding seat, a hollow main shaft, a stator flange, a rotor flange, the torque motor and the planetary reducer. The working table plate is supported on the sliding seat by a rotary bearing, the hollow main shaft is fixedly connected with the working table plate, the torque motor is positioned in an inner cavity of the sliding seat, the lower end of a stator of the torque motor is fixedly connected with a stator flange through a screw, the stator flange is fixedly connected with the sliding seat, and the upper end of a rotor of the torque motor is fixedly connected with a rotor flange through a screw; the planetary reducer is positioned in the inner cavity of the sliding seat, the power input end of the planetary reducer is fixedly connected with the rotor flange, the power output end of the planetary reducer is fixedly connected with the hollow main shaft, the torque motor drives the planetary reducer through the rotor flange, and the planetary reducer drives the working table plate through the hollow main shaft.
Furthermore, the planetary reducer comprises an inner gear, a bearing hollow shaft, a planet wheel support, a sun wheel and four planet wheels; the bearing hollow shaft is fixedly connected with the planet wheel support through screws, the planet wheel support is fixedly connected with the hollow main shaft through screws, the four planet wheels are uniformly distributed on the planet wheel support, the sun wheel is supported on the periphery of the bearing hollow shaft through a large deep groove ball bearing, the lower end of the sun wheel is fixedly connected with the rotor flange through screws, the rotor flange is supported on the periphery of the bearing hollow shaft through the large deep groove ball bearing, the inner gear is fixed on the upper end face of a stator of the torque motor through screws, and the gear teeth of the planet wheels are meshed with the sun wheel and the inner.
Further, the number of teeth of the internal gear is larger than that of the sun gear.
Furthermore, the planet wheel comprises a planet shaft, a round nut with a locking groove, a planet gear and a small deep groove ball bearing, the upper end of the planet shaft is connected with the planet wheel support through the round nut with the locking groove, the lower end of the planet shaft is connected with the planet gear through the small deep groove ball bearing, and the planet gear is meshed with the sun wheel and the inner gear simultaneously.
Further, a clamper is arranged on the periphery of the hollow main shaft.
Furthermore, the device also comprises an encoder and an encoder long shaft which are positioned inside the bearing hollow shaft, and the encoder long shaft is fixedly connected with the workbench plate.
The invention adopts the torque motor to drive the numerical control rotary table through the planetary reducer, increases the transmission torque, arranges the stator flange and the rotor flange in the inner cavity of the sliding seat, selects the small-sized torque motor and installs the torque motor between the stator flange and the rotor flange, and realizes the perfect combination of large torque and compact structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are 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.
FIG. 1 is a schematic cut-away general structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic sectioned construction of the planetary reducer of the present invention;
fig. 4 is a schematic sectional view of a planetary reducer of the present invention.
The components in the drawings are labeled as follows: 1-workbench plate, 2-slide base, 3-hollow main shaft, 4-stator flange, 5-rotor flange, 6-torque motor, 7-planetary reducer, 61-stator, 62-rotor, 71-internal gear, 72-bearing hollow shaft, 73-planet wheel bracket, 74-sun wheel, 75-planet wheel, 76-large deep groove ball bearing, 81-encoder, 82-encoder long shaft, 751-planet shaft, 752-circular nut with locking groove, 753-planet gear, 754-small deep groove ball bearing.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, a numerical control turntable with a torque motor driven by a planetary reducer comprises a working table plate 1, a sliding seat 2, a hollow spindle 3, a stator flange 4, a rotor flange 5, a torque motor 6 and a planetary reducer 7. The working table plate 1 is supported on the sliding seat 2 by a rotary bearing, the hollow main shaft 3 is fixedly connected with the working table plate 1, the torque motor 6 is positioned in the inner cavity of the sliding seat 2, the lower end of a stator 61 of the torque motor 6 is fixedly connected with a stator flange 4 by a screw, the stator flange 4 is fixedly connected with the sliding seat 2, and the upper end of a rotor 62 of the torque motor 6 is fixedly connected with a rotor flange 5 by a screw; the planetary reducer 7 is positioned in the inner cavity of the sliding seat 2, the power input end of the planetary reducer 7 is fixedly connected with the rotor flange 5, the power output end of the planetary reducer 7 is fixedly connected with the hollow spindle 3, the torque motor 6 drives the planetary reducer 7 through the rotor flange 5, and the planetary reducer 7 drives the working bedplate 1 through the hollow spindle 3.
The invention adopts the torque motor to drive the numerical control rotary table through the planetary reducer, increases the transmission torque, arranges the stator flange and the rotor flange in the inner cavity of the sliding seat, selects the small-sized torque motor and installs the torque motor between the stator flange and the rotor flange, and realizes the perfect combination of large torque and compact structure.
Further, as shown in fig. 3 and 4, the planetary reducer 7 includes an inner gear 71, a hollow bearing shaft 72, a planet carrier 73, a sun gear 74, and four planet gears 75; the bearing hollow shaft 72 is fixedly connected with the planet wheel support 73 through screws, the planet wheel support 73 is fixedly connected with the hollow main shaft 3 through screws, four planet wheels 75 are uniformly distributed on the planet wheel support 73, the sun wheel 74 is supported on the periphery of the bearing hollow shaft 72 through a large deep groove ball bearing (not shown), the lower end of the sun wheel 74 is fixedly connected with the rotor flange 5 through screws, the rotor flange 5 is supported on the periphery of the bearing hollow shaft 72 through a large deep groove ball bearing 76, the inner gear 71 is fixed on the upper end face of the stator of the torque motor 6 through screws, and the planet wheels 75 are meshed with the sun wheel 74 and the inner gear 71 at the same time.
When the torque motor rotor rotates relative to the stator, the motor rotor drives the sun wheel to synchronously rotate along with the rotor through the rotor flange, the sun wheel serves as an input end of the planetary reducer to drive the planetary wheel, the inner gear of the planetary wheel operates as an orbit to drive the planetary wheel support to revolve, the planetary wheel support serves as an output end of the planetary reducer to drive the hollow main shaft, and finally the working platen is driven to operate as required.
The four planet wheels are uniformly distributed on the planet wheel bracket and are symmetrically distributed, so that the transmission torque is increased, the size of the whole structure is reduced, and the stable and reliable motion is ensured.
Further, the number of teeth of the internal gear 71 is larger than that of the sun gear 74.
The transmission ratio from the sun wheel to the planet wheel support is changed, and the purposes of reducing speed and increasing the working torque of the working table plate are achieved.
Further, the planet gear 75 comprises a planet shaft 751, a round nut 752 with a locking groove, a planet gear 753 and a small deep groove ball bearing 754, wherein the upper end of the planet shaft 751 is connected with the planet gear bracket 73 through the round nut 752 with the locking groove, the lower end of the planet shaft 751 is connected with the planet gear 753 through the small deep groove ball bearing 754, and the planet gear 753 is meshed with the sun gear 74 and the inner gear 71 simultaneously.
Further, as shown in fig. 1 and 2, a clamper is provided on the outer periphery of the hollow main shaft 3.
When the work table is required to be fixed and does not rotate, the clamp tightly holds the hollow main shaft to fix the work table.
Further, an encoder 81 and an encoder long shaft 82 are included inside the hollow bearing shaft 72, and the encoder long shaft 82 is fixedly coupled with the work table plate 1.
The encoder and the encoder long shaft detect the rotation information of the workbench and then feed back the rotation information to the controller to realize the closed-loop control of the rotary motion of the workbench plate.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A numerical control turntable with a torque motor driven by a planetary reducer is characterized by comprising a working table plate (1), a sliding seat (2), a hollow main shaft (3), a stator flange (4), a rotor flange (5), a torque motor (6) and a planetary reducer (7);
the working table plate (1) is supported on the sliding base (2) through a rotary bearing, the hollow spindle (3) is fixedly connected with the working table plate (1), the torque motor (6) is located in an inner cavity of the sliding base (2), the lower end of a stator (61) of the torque motor (6) is fixedly connected with a stator flange (4) through a screw, the stator flange (4) is fixedly connected with the sliding base (2), and the upper end of a rotor (62) of the torque motor (6) is fixedly connected with the rotor flange (5) through a screw;
the planetary reducer (7) is located in an inner cavity of the sliding seat (2), a power input end of the planetary reducer (7) is fixedly connected with the rotor flange (5), a power output end of the planetary reducer (7) is fixedly connected with the hollow spindle (3), the torque motor (6) drives the planetary reducer (7) through the rotor flange (5), and the planetary reducer (7) drives the working table plate (1) through the hollow spindle (3).
2. A numerically controlled turret driven by a torque motor through a planetary reducer according to claim 1, characterized in that said planetary reducer (7) comprises an internal gear (71), a hollow bearing shaft (72), a planet-wheel carrier (73), a sun wheel (74) and four planet wheels (75); bearing hollow shaft (72) and planet wheel support (73) are through screw fixed coupling, planet wheel support (73) and hollow main shaft (3) are through screw fixed coupling, four planet wheel (75) evenly distributed in planet wheel support (73), sun gear (74) are supported through big deep groove ball bearing the periphery of bearing hollow shaft (72), the lower extreme of sun gear (74) through the screw with rotor flange (5) fixed coupling, rotor flange (5) support in through big deep groove ball bearing (76) the periphery of bearing hollow shaft (72), internal gear (71) through the fix with screw the stator up end of torque motor (6), planet wheel (75) simultaneously with sun gear (74), internal gear (71) meshing.
3. A numerically controlled turntable with a torque motor driven by a planetary reducer as in claim 2, wherein the number of teeth of said internal gear (71) is greater than the number of teeth of said sun gear (74).
4. A numerically controlled turret driven by a torque motor through a planetary reducer according to claim 2, characterized in that said planetary wheels (75) comprise a planetary shaft (751), a round nut with locking grooves (752), a planetary gear (753) and a small deep groove ball bearing (754), the upper end of said planetary shaft (751) is coupled with said planetary carrier (73) through said round nut with locking grooves (752), the lower end of said planetary shaft (751) is coupled with said planetary gear (753) through said small deep groove ball bearing (754), said planetary gear (753) meshes with said sun gear (74) and said inner gear (71) at the same time.
5. A numerically controlled turret driven by a torque motor via a planetary reducer, according to claim 1, characterized in that said hollow spindle (3) is provided with a gripper (9) on its periphery.
6. A numerically controlled turntable driven by a torque motor through a planetary reducer as claimed in claim 2, further comprising an encoder (81) and an encoder long shaft (82) located inside said hollow bearing shaft (72), said encoder long shaft (82) being fixedly coupled to said table plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811325571.7A CN111152042A (en) | 2018-11-08 | 2018-11-08 | Numerical control rotary table with torque motor driven by planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811325571.7A CN111152042A (en) | 2018-11-08 | 2018-11-08 | Numerical control rotary table with torque motor driven by planetary reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111152042A true CN111152042A (en) | 2020-05-15 |
Family
ID=70555547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811325571.7A Pending CN111152042A (en) | 2018-11-08 | 2018-11-08 | Numerical control rotary table with torque motor driven by planetary reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111152042A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228724A (en) * | 2020-09-21 | 2021-01-15 | 中船重工中南装备有限责任公司 | Precise pitching device with quick response |
| CN114055193A (en) * | 2021-11-17 | 2022-02-18 | 山东省机械设计研究院 | Double-drive speed regulation rotary table of numerical control machine tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6487106A (en) * | 1987-07-09 | 1989-03-31 | Index Verwaltung | Tool turret |
| CN101480778A (en) * | 2009-01-24 | 2009-07-15 | 苏州江南电梯(集团)有限公司 | Direct driving type accurate turn plate |
| CN204449914U (en) * | 2015-01-29 | 2015-07-08 | 齐重数控装备股份有限公司 | A kind of large main arbor direct-drive type rotary table structure |
| CN104889424A (en) * | 2015-05-29 | 2015-09-09 | 上海大学 | Electric spindle with torque amplification function |
| CN107639427A (en) * | 2017-09-26 | 2018-01-30 | 广州市昊志机电股份有限公司 | Mechanical processing machine turntable |
-
2018
- 2018-11-08 CN CN201811325571.7A patent/CN111152042A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6487106A (en) * | 1987-07-09 | 1989-03-31 | Index Verwaltung | Tool turret |
| CN101480778A (en) * | 2009-01-24 | 2009-07-15 | 苏州江南电梯(集团)有限公司 | Direct driving type accurate turn plate |
| CN204449914U (en) * | 2015-01-29 | 2015-07-08 | 齐重数控装备股份有限公司 | A kind of large main arbor direct-drive type rotary table structure |
| CN104889424A (en) * | 2015-05-29 | 2015-09-09 | 上海大学 | Electric spindle with torque amplification function |
| CN107639427A (en) * | 2017-09-26 | 2018-01-30 | 广州市昊志机电股份有限公司 | Mechanical processing machine turntable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228724A (en) * | 2020-09-21 | 2021-01-15 | 中船重工中南装备有限责任公司 | Precise pitching device with quick response |
| CN114055193A (en) * | 2021-11-17 | 2022-02-18 | 山东省机械设计研究院 | Double-drive speed regulation rotary table of numerical control machine tool |
| CN114055193B (en) * | 2021-11-17 | 2023-02-28 | 山东省机械设计研究院 | Double-drive speed regulation rotary table of numerical control machine tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106862945B (en) | Cradle type double-rotating workbench | |
| CN201792207U (en) | Rotating table | |
| CN111152042A (en) | Numerical control rotary table with torque motor driven by planetary reducer | |
| CN105822724A (en) | Servo planet gear speed reducer | |
| CN108356622A (en) | A kind of reducing inner hole grinding device being installed on milling machine spindle and processing method | |
| CN203227898U (en) | Numerical-control gear hobbing machine | |
| CN201279698Y (en) | Numerical control flat capstan | |
| CN105522171A (en) | Portable type numerical-control process continuous processing device | |
| CN108747438A (en) | Linear drives rotary table | |
| CN201693191U (en) | Five-axis linkage high-speed spindle head | |
| CN201613475U (en) | Machine tool feeding transmission device | |
| CN213135832U (en) | Single-arm cam roller double-shaft swing head | |
| CN106217253B (en) | A kind of outer rotor grinding machine head stock frame | |
| CN100460153C (en) | Profiling grinding-machine integrated planetary gear speed-reducing mechanism | |
| CN211220151U (en) | Planetary double-plane grinding machine | |
| CN2041228U (en) | Electric chuck | |
| CN203261185U (en) | Harmonic-wave deceleration apparatus for built-in outwards rotating motor | |
| CN207910623U (en) | A kind of direct driving motor for numerically-controlled machine tool | |
| CN220029357U (en) | Concealed direct-drive speed-reducing five-shaft cradle turntable mechanism | |
| CN105345563A (en) | Electric control mechanism for automatic indexing of automatic clamp of spindle | |
| CN214393707U (en) | Multifunctional numerical control special grinding machine | |
| CN201031930Y (en) | Profile grinder integrated planetary gear reducing gear | |
| CN205799058U (en) | Main shaft of numerical control machine tool swing mechanism | |
| CN219725412U (en) | Electric spindle mechanical speed reducing mechanism | |
| CN218598740U (en) | Motor speed reducing mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |