CN219504148U - Numerical control rotary table and numerical control machine tool - Google Patents
Numerical control rotary table and numerical control machine tool Download PDFInfo
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- CN219504148U CN219504148U CN202320499708.0U CN202320499708U CN219504148U CN 219504148 U CN219504148 U CN 219504148U CN 202320499708 U CN202320499708 U CN 202320499708U CN 219504148 U CN219504148 U CN 219504148U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model provides a numerical control rotary table and a numerical control machine tool, wherein the numerical control rotary table comprises: the workbench comprises a table surface part, wherein the table surface part comprises a first side and a second side which are oppositely arranged; the bearing is arranged on the second side of the table surface part, the bearing comprises a first side facing the table surface part and a second side facing away from the table surface part, and an inner ring of the bearing is fixed on the workbench; the torque motor is arranged on the second side of the bearing and comprises a torque motor stator and a torque motor rotor, the torque motor stator is positioned on the outer side of the torque motor rotor and is fixed on the outer ring of the bearing, and the torque motor rotor is attached to one side of the bearing and is directly fixed on the inner ring of the bearing. The numerical control turntable has a simple structure and a simple production and preparation process.
Description
Technical Field
The utility model relates to the technical field of numerical control machine tools, in particular to a numerical control rotary table and a numerical control machine tool.
Background
The numerical control machine tool is short for numerical control machine tool, and is an automatic machine tool with a program control system. The numerical control turntable is a rotary workbench arranged on the numerical control machine tool. In order to improve the production efficiency of the numerical control machine tool and expand the process range, besides providing linear feeding motion along three directions of the coordinate axis X, Y, Z, feeding motion and indexing motion in the circumferential direction are also required to be provided through a numerical control turntable. In particular, for a multi-station numerical control machine tool with automatic tool changing, a numerical control turntable becomes an indispensable component, which brings convenience to part processing.
The existing numerical control turntable generally comprises a workbench and a torque motor, and a rotor of the torque motor drives the workbench to rotate when the torque motor is started. However, the existing numerical control turntable has a complex structure, the production and preparation process is complex, and the rotating speed of the numerical control turntable is limited to be lower, so that a faster processing mode cannot be provided. In addition, it is difficult for the existing numerical control turntable to accurately fix the position of the workpiece to be machined in the fixture, resulting in inconvenience in machining the workpiece.
It should be noted that the information disclosed in the foregoing background section is only for enhancement of understanding of the background of the utility model and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model aims to provide a numerical control turntable and a numerical control machine tool, which have simple structure and simple production and preparation process.
The embodiment of the utility model provides a numerical control turntable, which comprises the following components:
the workbench comprises a table surface part, wherein the table surface part comprises a first side and a second side which are oppositely arranged;
the bearing is arranged on the second side of the table surface part, the bearing comprises a first side facing the table surface part and a second side facing away from the table surface part, and an inner ring of the bearing is fixed on the workbench;
the torque motor is arranged on the second side of the bearing and comprises a torque motor stator and a torque motor rotor, the torque motor stator is positioned on the outer side of the torque motor rotor and is fixed on the outer ring of the bearing, and the torque motor rotor is attached to one side of the bearing and is directly fixed on the inner ring of the bearing.
In some embodiments, the torque motor rotor comprises a fixed section and a connecting section, wherein the fixed section is arranged on one side of the connecting section facing the bearing, and the width of the fixed section is larger than that of the connecting section on the section of the numerical control turntable.
In some embodiments, the workbench further comprises a mounting part arranged on the second side of the table surface part, the inner ring of the bearing is sleeved on the outer side of the mounting part, and the inner side of the inner ring of the bearing and/or the side of the bearing facing the table surface part is/are fixed on the workbench.
In some embodiments, the numerically controlled rotary table further comprises a first flange plate, the first flange plate is arranged on the outer side of the bearing and located on one side, facing the bearing, of the torque motor stator, and the torque motor stator is fixed on the outer ring of the bearing through the first flange plate.
In some embodiments, the torque motor further comprises a second flange plate and a flange shaft, wherein the second flange plate is positioned on one side of the torque motor, which is away from the bearing, and is fixed on the torque motor stator, and the flange shaft is arranged in the center of the torque motor in a penetrating manner and is fixed on the workbench.
In some embodiments, the flange shaft is fixed to the workbench through the centering flange, a mounting hole is formed in the center of the first side of the workbench part, and the centering piece is fixed in the mounting hole.
In some embodiments, the outside of flange axle still is equipped with band-type brake mechanism, band-type brake mechanism includes fixed sleeve, piston ring and brake block, fixed sleeve install in the outside of flange axle, the piston ring be located torque motor rotor's inboard with between the fixed sleeve, the brake block is fixed in torque motor rotor, the piston ring can be towards being close to and deviate from the direction motion of brake block.
In some embodiments, the numerical control turntable further comprises a pendulum body and a cover body, the pendulum body is sleeved on the outer side of the torque motor, the pendulum body is respectively fixed on the first flange plate and the second flange plate, the cover body is located on one side, away from the table surface portion, of the pendulum body, and the cover body is fixed on the pendulum body.
In some embodiments, the numerically controlled turntable further comprises an encoder and a support, the encoder is disposed outside the flange shaft, and the encoder is fixed to the second flange plate through the support.
The utility model also provides a numerical control machine tool, which comprises the numerical control turntable.
The numerical control turntable and the numerical control machine tool provided by the utility model have the following advantages:
the utility model provides a structure of a numerical control turntable with simple structure and compact arrangement, a workbench is driven to rotate by a bearing when a torque motor works, a torque motor stator is fixed on an outer ring of the bearing, a torque motor rotor is attached to and directly fixed on an inner ring of the bearing, the number of structural members matched with the torque motor and the workbench is reduced, the internal space of the whole numerical control turntable is effectively saved, and the cost is lower.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings.
FIG. 1 is a cross-sectional view of a numerically controlled turret according to one embodiment of the utility model;
FIG. 2 is a perspective view of a numerically controlled turret according to one embodiment of the utility model;
FIG. 3 is a schematic view of a rotor and bearing assembly according to an embodiment of the present utility model.
Reference numerals:
1. centering piece 11 flange shaft
2. Turntable bearing of workbench 12
21. Table 13 moment motor stator
22. Mounting portion 14 moment motor rotor
3. Sealing ring 141 fixing segment
4. First flange 142 connecting section
5. Pendulum 15 brake pad
6. Piston ring 16 compression ring
7. Second flange of fixing sleeve 17
8. Cover 18 encoder
9. Water-cooling sleeve of support 19 moment motor
10. Centering flange
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus a repetitive description thereof will be omitted. "or", "or" in the specification may each mean "and" or ". Although the terms "upper", "lower", "between", etc. may be used in this specification to describe various exemplary features and elements of the utility model, these terms are used herein for convenience only, e.g., in terms of the orientation of the examples depicted in the drawings. Nothing in this specification should be construed as requiring a particular three-dimensional orientation of the structure in order to fall within the scope of the utility model. Although the terms "first" or "second" etc. may be used herein to describe certain features, these features should be interpreted in a descriptive sense only and not for purposes of limitation as to the number and importance of the particular features. In this specification, "connected" may mean directly connected or indirectly connected, and "fixed" may mean directly fixed or indirectly fixed, unless otherwise specified.
The utility model provides a numerical control turntable for a numerical control machine tool and the numerical control machine tool comprising the numerical control turntable. The numerical control turntable comprises: the workbench comprises a table surface part, wherein the table surface part comprises a first side and a second side which are oppositely arranged; the bearing is arranged on the second side of the table surface part, the bearing comprises a first side facing the table surface part and a second side facing away from the table surface part, and an inner ring of the bearing is fixed on the workbench; the torque motor is arranged on the second side of the bearing and comprises a torque motor stator and a torque motor rotor, the torque motor stator is positioned on the outer side of the torque motor rotor and is fixed on the outer ring of the bearing, and the torque motor rotor is attached to one side of the bearing and is directly fixed on the inner ring of the bearing. The utility model provides a structure of a numerical control turntable with simple structure and compact arrangement, a workbench is driven to rotate by a bearing when a torque motor works, a torque motor stator is fixed on an outer ring of the bearing, a torque motor rotor is attached to and directly fixed on an inner ring of the bearing, the number of structural members matched with the torque motor and the workbench is reduced, the internal space of the whole numerical control turntable is effectively saved, and the cost is lower.
The structure of the numerical control turntable according to an embodiment of the present utility model will be specifically described with reference to fig. 1 to 3. It is to be understood that the drawings and the following description are only exemplary and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 3, in this embodiment, the numerically controlled turntable comprises a table 2, a bearing 12, a first flange 4 and a torque motor. The table 2 includes a table portion 21 and a mounting portion 22, where the table portion 21 and the mounting portion 22 are integrally formed, or may be formed separately and then fixedly connected. The table portion 21 is a truncated cone portion having a larger outer diameter and located above, and the mounting portion 22 is a truncated cone portion having a smaller outer diameter and connected to the lower side of the table portion 21. The table portion 21 includes a first side and a second side that are disposed opposite to each other, and in the view of fig. 1, the first side and the second side of the table portion 21 are an upper side and a lower side of the table portion 21. The upper surface of the table portion 21 is for carrying a workpiece. The bearing 12 is disposed on the underside of the table portion 21, the bearing 12 includes a first side facing the table portion 21 and a second side facing away from the table portion 21, and in the view of fig. 1, the first side and the second side of the bearing 12 refer to the upper side and the lower side of the bearing 12, respectively. The bearing 12 is sleeved outside the mounting portion 22, and an inner ring of the bearing 12 is fixed to the table 2. The inner ring of the bearing 12 is fixed to the outer side of the mounting portion 22 and/or the upper side of the inner ring of the bearing 12 is fixed to the lower side of the table portion 21. The inner ring of the bearing 12 and the workbench 2 can be fixedly connected by welding, bolts, connecting pins and the like.
As shown in fig. 1, the torque motor is provided at the lower side of the bearing 12, and includes a torque motor stator 13 (coil) and a torque motor rotor 14 (magnet), and the torque motor stator 13 is located at the outer side of the torque motor rotor 14. The first flange 4 is disposed outside the bearing 12 and above the torque motor stator 13. The upper side of the torque motor stator 13 is fixed to the torque motor stator 13 by the first flange 4. A sealing ring 3 is provided between the upper side of the first flange 4 and the lower side of the table portion 21. The seal ring 3 is, for example, a rubber seal ring. A coaxial clearance fit is formed between the table portion 21 and the seal ring 3, and the seal ring 3 is used for realizing space seal. The torque motor rotor 14 is attached to the bearing 12 on the side facing the bearing 12 and is directly fixed to the inner ring of the bearing 12. In this embodiment, as shown in FIG. 3, the torque motor rotor 14 is of an inverted "L" configuration. The torque motor rotor 14 includes a fixed section 141 and a connecting section 142, the fixed section 141 is disposed on a side of the connecting section 142 facing the bearing 12, and the width of the fixed section 141 is larger than the width of the connecting section 142 on a section of the nc turntable (a section perpendicular to the upper surface of the table 2). The size and shape of the fixing section 141 is preferably adapted to the inner ring size of the bearing 12 to improve the stability of the connection of the torque motor rotor 14 to the inner ring of the bearing 12. The torque motor rotor 14 and the inner ring of the bearing 12 may be directly fixed by welding, bolts, connecting pins, or the like.
In the embodiment, the numerical control turntable is simple in structure and compact in arrangement, the workbench 2 is driven to rotate through the bearing 12 during operation of the torque motor, the torque motor stator 13 is fixed on the outer ring of the bearing 12 through the first flange 4, the torque motor rotor 14 is attached to and directly fixed on the inner ring of the bearing 12, the number of structural components of the torque motor and the workbench 2 is reduced, the inner space of the whole numerical control turntable is effectively saved, and the cost is lower. And in this embodiment, a smaller size bearing 12 can be used to achieve transmission of rotational drive force, which is less costly. Since the limit rotational speed of the bearing 12 is inversely proportional to the diameter and width of the bearing 12, the use of a smaller gauge bearing 12 effectively increases the rotational speed and life of the bearing 12.
As shown in fig. 1 and 2, in this embodiment, the numerically controlled turntable further includes a torque motor water cooling sleeve 19 sleeved on the outer side of the torque motor for cooling the torque motor in operation, so as to avoid the working temperature of the torque motor from being too high. The numerical control turntable further comprises a second flange plate 17, a flange shaft 11, a centering flange 10 and a support 9, wherein the second flange plate 17 is positioned at the lower side of the torque motor, and the second flange plate 17 is fixed on the torque motor stator 13. The upper side and the lower side of the torque motor water-cooling sleeve 19 are respectively fixed on the first flange plate 4 and the second flange plate 17 through bolts. The flange shaft 11 is arranged in the center of the torque motor in a penetrating manner, the upper end of the flange shaft 11 is fixed on the lower side of the mounting part 22 of the workbench 2 through the centering flange 10, the lower end of the flange shaft 11 is fixed on the second flange plate 17 through the support 9, and bolts, connecting pins or welding and other modes can be used for fixing the upper end of the flange shaft 11 with the centering flange 10, the lower end of the flange shaft 11 with the support 9, and the support 9 with the second flange plate 17.
As shown in fig. 1 and 2, a mounting hole is formed in the center of the first side of the table surface portion 21, and the centering member 1 is fixed in the mounting hole and fixedly connected to the table 2 by a bolt. In this embodiment, the centering member 1 is a centering sleeve. The upper surface of the centering piece 1 is flush with the upper surface of the workbench 2, and the centering piece 1 and the workbench 2 are used for bearing workpieces together. When assembling the centering member 1 to the table 2, the center of the centering member 1 is adjusted so that the center of the centering member 1 is aligned with the centers of the centering flange 10 and the flange shaft 11, so that the centering member 1 is disposed coaxially with the flange shaft 11. When the workpiece is processed, the center of the workpiece is aligned with the center of the centering piece 1, so that the center of the workpiece is aligned with the axis of the flange shaft 11, the position of the workpiece in the clamp is accurately fixed, the processing precision is improved, the centering time is saved, the precision processing difficulty of the workpiece is reduced, the workpiece is processed more conveniently, and the product qualification rate is improved. And in the later stage, if the machining precision is effectively reduced, the fixed centering piece 1 can be repositioned, so that the later maintenance is convenient.
In this embodiment, a band-type brake mechanism is further disposed on the outer side of the flange shaft 11, and is used for providing a braking function for the numerical control turntable. As shown in fig. 1 and 2, the band-type brake mechanism comprises a fixed sleeve 7, a piston ring 6, a brake pad 15 and a compression ring 16, wherein the fixed sleeve 7 is installed on the outer side of the flange shaft 11, and the piston ring 6 is located between the inner side of the torque motor rotor 14 and the fixed sleeve 7. The fixed sleeve 7 is concentrically matched with the piston ring 6, and the lower part of the fixed sleeve 7 is fixed on the second flange plate 17 through bolts. The brake pad 15 is located at the lower side of the torque motor rotor 14 and is fixed to the torque motor rotor 14, the compression ring 16 is located at the lower side of the brake pad 15, and the brake pad 15, the torque motor rotor 14 and the compression ring 16 are fixedly connected through bolts. The piston ring 6 is movable in a direction approaching and departing from the brake pad 15. When braking is needed, the cavity between the fixed sleeve 7 and the piston ring 6 is filled with liquid, and the brake pad 15 is pressed down, so that the brake pad 15, the pressure spring and the torque motor rotor 14 are relatively static, and the band-type brake function of the workbench 2 is realized.
In this embodiment, the numerical control revolving stage still includes pendulum body 5, lid 8 and encoder 18, the pendulum body 5 cover is located the outside of torque motor water-cooling sleeve 19, the upper and lower both sides of pendulum body 5 are fixed in respectively through the bolt fastening first ring flange 4 with second ring flange 17, lid 8 is located the below of pendulum body 5, just lid 8 is fixed in through the bolt fastening pendulum body 5, lid 8 with pendulum body 5 replaces current pendulum body 5 jointly, and is easier for processing and assembly to reduce maintenance cost. The encoder 18 is arranged outside the flange shaft 11, and the encoder 18 is fixed to the second flange 17 through the support 9. The encoder 18 is used for detecting the working accuracy of the numerical control turntable. The encoder 18 is fixedly connected with the support 9 by bolts.
In the above embodiments, the connection manner of the centering piece 1 and the table 2, the connection manner of the torque motor water-cooling sleeve 19 and the first flange 4 and the second flange 17, the connection manner of the fixing sleeve 7 and the second flange 17, the connection manner of the brake pad 15 and the torque motor rotor 14 and the compression ring 16, the connection manner of the pendulum body 5 and the first flange 4 and the second flange 17, the connection manner of the pendulum body 5 and the cover body 8, the connection manner of the encoder 18 and the support 9, and the like are described by using bolts as examples, and in different embodiments, one or more of the connection manners may be replaced by using a connection pin or other connection pieces, or a direct welding connection, and the like, which are all within the scope of the present utility model. By adopting the structural design of the numerical control turntable, the numerical control turntable is simple in structure and convenient to use, the machining precision of a workpiece can be ensured, and the preparation cost and the maintenance cost of the numerical control turntable can be saved.
The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.
Claims (10)
1. A numerically controlled rotary table, comprising:
the workbench comprises a table surface part, wherein the table surface part comprises a first side and a second side which are oppositely arranged;
the bearing is arranged on the second side of the table surface part, the bearing comprises a first side facing the table surface part and a second side facing away from the table surface part, and an inner ring of the bearing is fixed on the workbench;
the torque motor is arranged on the second side of the bearing and comprises a torque motor stator and a torque motor rotor, the torque motor stator is positioned on the outer side of the torque motor rotor and is fixed on the outer ring of the bearing, and the torque motor rotor is attached to one side of the bearing and is directly fixed on the inner ring of the bearing.
2. The digitally controlled turntable of claim 1 wherein the torque motor rotor includes a fixed section and a connecting section, the fixed section being disposed on a side of the connecting section facing the bearing, and wherein the width of the fixed section is greater than the width of the connecting section in a cross section of the digitally controlled turntable.
3. The numerical control turntable according to claim 1, wherein the table further comprises a mounting portion provided on the second side of the table surface portion, the inner ring of the bearing is sleeved on the outer side of the mounting portion, and the inner side of the inner ring of the bearing and/or the side of the bearing facing the table surface portion is fixed to the table.
4. The digitally controlled turntable of claim 1 further including a first flange plate disposed on an outer side of the bearing and on a side of the torque motor stator facing the bearing, the torque motor stator being secured to an outer race of the bearing by the first flange plate.
5. The numerically controlled rotary table of claim 4, further comprising a second flange plate and a flange shaft, wherein the second flange plate is positioned on a side of the torque motor facing away from the bearing, and the second flange plate is fixed to the torque motor stator, and the flange shaft is inserted through a center of the torque motor and fixed to the table.
6. The numerically controlled turret of claim 5, further comprising a centering flange through which the flange shaft is secured to the table, a mounting hole being provided in a center of the first side of the table portion, and a centering member secured in the mounting hole.
7. The numerical control turntable according to claim 5, wherein a band-type brake mechanism is further arranged on the outer side of the flange shaft, the band-type brake mechanism comprises a fixed sleeve, a piston ring and a brake pad, the fixed sleeve is mounted on the outer side of the flange shaft, the piston ring is located between the inner side of the torque motor rotor and the fixed sleeve, the brake pad is fixed on the torque motor rotor, and the piston ring can move in a direction approaching to and departing from the brake pad.
8. The numerical control turntable according to claim 5, further comprising a pendulum body and a cover body, wherein the pendulum body is sleeved on the outer side of the torque motor, the pendulum body is respectively fixed on the first flange plate and the second flange plate, the cover body is located on one side of the pendulum body away from the table surface portion, and the cover body is fixed on the pendulum body.
9. The digitally controlled turret of claim 5 further including an encoder and a support, the encoder being located outside of the flange shaft and the encoder being secured to the second flange plate by the support.
10. A numerically controlled machine tool comprising the numerically controlled turret according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320499708.0U CN219504148U (en) | 2023-03-15 | 2023-03-15 | Numerical control rotary table and numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320499708.0U CN219504148U (en) | 2023-03-15 | 2023-03-15 | Numerical control rotary table and numerical control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219504148U true CN219504148U (en) | 2023-08-11 |
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ID=87549074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320499708.0U Active CN219504148U (en) | 2023-03-15 | 2023-03-15 | Numerical control rotary table and numerical control machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219504148U (en) |
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2023
- 2023-03-15 CN CN202320499708.0U patent/CN219504148U/en active Active
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