CN116690241A - High-precision turning and milling composite rotary table - Google Patents
High-precision turning and milling composite rotary table Download PDFInfo
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- CN116690241A CN116690241A CN202310980314.1A CN202310980314A CN116690241A CN 116690241 A CN116690241 A CN 116690241A CN 202310980314 A CN202310980314 A CN 202310980314A CN 116690241 A CN116690241 A CN 116690241A
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- oil
- cavity
- bearing
- supporting sleeve
- turntable
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- 239000002131 composite material Substances 0.000 title claims abstract description 38
- 238000003801 milling Methods 0.000 title claims abstract description 34
- 238000007514 turning Methods 0.000 title claims abstract description 32
- 238000001816 cooling Methods 0.000 claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000004891 communication Methods 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims description 38
- 238000002347 injection Methods 0.000 claims description 20
- 239000007924 injection Substances 0.000 claims description 20
- 238000003825 pressing Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000002788 crimping Methods 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 2
- 230000008859 change Effects 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 85
- 238000003754 machining Methods 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002173 cutting fluid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
Abstract
The invention provides a high-precision turning and milling composite turntable, which relates to the technical field of machine tool turntables, and comprises: the sliding seat is internally provided with a cavity and is used for being arranged on the bed body of the machine tool; the support sleeve is connected inside the cavity; the inner rotor of the bearing assembly is connected to the outer side of the supporting sleeve; the stator of the torque motor is connected to the inner side of the supporting sleeve, the rotor of the torque motor is connected with the outer rotor of the bearing assembly, and a cooling groove is formed between the stator of the torque motor and the inner side of the supporting sleeve; the workbench is rotationally connected to the top of the cavity and is connected with the outer rotating body of the bearing assembly; the water cooling loop system is communicated with the cooling groove; an oil cooling circuit system in communication with the interior of the bearing assembly. The heat generated by the torque motor and the bearing assembly is effectively taken away, the temperature of the turntable is controlled, the influence of temperature change on the precision of the turntable is solved, and the high precision and the precision stability of the turntable are ensured.
Description
Technical Field
The invention belongs to the technical field of machine tool turntables, and particularly relates to a high-precision turning and milling composite turntable.
Background
Many new technologies, materials and structures are adopted in the design of parts in the key field of modern manufacturing industry to meet the severe performance requirements. The parts are of an integral structure, the parts are complex in structure, the requirements on machining precision and workpiece surface quality are high, and the machining equipment has the characteristics of high precision, high stability, high efficiency, composite machining and the like.
The five-axis linkage turning and milling composite machining center integrates the functions of a vertical lathe and a machining center, can perform various machining such as drilling, tapping, multi-face milling, turning and the like, has obvious advantages in realizing complete machining of rotary parts with complex shapes, becomes key equipment for machining key complex parts, and is a core functional component of the equipment.
The turning and milling composite turntable directly driven by the torque motor has the characteristics of avoiding the influence of a transmission chain on the precision of the turntable and having high dynamic performance due to the reduction of mechanical transmission links, has wide application on a small turntable, but has few applications on a large turntable, mainly uses a mechanical structure, has a complex structure of the turntable, has obvious thermal influence and is difficult to ensure the precision.
Disclosure of Invention
The invention aims to provide a high-precision turning and milling composite turntable aiming at the defects of the prior art, so as to solve the problems that the turning and milling composite turntable directly driven by a torque motor provided in the background art has the characteristics of wide application on a small turntable, few applications on a large turntable, mainly mechanical structure, complex structure of the turntable, obvious heat influence and difficult guarantee of precision due to the fact that the influence of a transmission chain on the precision of the turntable is reduced.
In order to achieve the above object, the present invention provides a high-precision turning and milling composite turntable, comprising:
the sliding seat is internally provided with a cavity and is used for being arranged on a lathe bed of a machine tool;
the support sleeve is connected to the inside of the cavity;
the inner rotor of the bearing assembly is connected to the outer side of the supporting sleeve;
the stator of the torque motor is connected to the inner side of the supporting sleeve, the rotor of the torque motor is connected with the outer rotor of the bearing assembly, and a cooling groove is formed between the stator of the torque motor and the inner side of the supporting sleeve;
the workbench is rotationally connected to the top of the cavity and is connected with the outer rotating body of the bearing assembly;
the water cooling loop system is communicated with the cooling groove;
an oil cooling circuit system in communication with an interior of the bearing assembly.
Preferably, the cooling groove is spirally arranged from top to bottom, and the water cooling loop system comprises:
a water cooling machine;
a water inlet channel is arranged in the support sleeve, one end of the water inlet channel is communicated with the bottom of the spiral cooling groove, the other end of the water inlet channel is connected with one end of a water inlet pipe, and the other end of the water inlet pipe penetrates through the side wall of the cavity and is connected with the output end of the water cooler;
the inside of supporting sleeve is equipped with the water outlet channel, the one end of water outlet channel with spiral cooling tank top intercommunication, the other end of water outlet channel is connected with the one end of outlet pipe, the other end of outlet pipe wears to establish the lateral wall of cavity, and with the input of water-cooling machine is connected.
Preferably, the inner bottom of the cavity is provided with a mounting groove, the outer side of the supporting sleeve is provided with an annular outer protruding portion, the bottom of the supporting sleeve is inserted into the mounting groove, the annular bottom of the outer protruding portion is connected to the bottom of the cavity, and the bearing assembly is arranged at the top of the annular outer protruding portion.
Preferably, an annular mounting surface is provided on the outer side of the support sleeve and above the annular outer flange, and the bearing assembly includes:
the bottom of the inner ring of the bearing is connected to the annular mounting surface;
the inner ring pressing plate is connected to the top of the supporting sleeve and is pressed and connected to the top of the inner ring of the bearing;
the outer ring pressing plate is in press connection with the bottom of the outer ring of the bearing;
the bearing sleeve, the bottom of bearing sleeve with outer lane clamp plate is connected, the inboard of bearing sleeve is equipped with annular interior convex part, annular interior convex part crimping is in the outer lane top of bearing, the top of bearing sleeve with the workstation is connected.
Preferably, the oil cooling circuit system comprises:
an oil cooler;
the two oil inlet pipes are respectively arranged at two sides of the supporting sleeve, one end of each oil inlet pipe is plugged, the other end of each oil inlet pipe penetrates through the side wall of the cavity and is connected with the output end of the oil cooler, a plurality of oil inlet holes are formed in the side wall of each oil inlet pipe, a plurality of oil inlet channels are respectively formed in two sides of the inside of the supporting sleeve, one end of each oil inlet channel is communicated with the inner side of the bearing so as to be used for lubricating and cooling the bearing, and the other end of each oil inlet channel is respectively connected with one oil inlet hole of each oil inlet pipe;
an oil outlet gap is formed between the outer ring pressing plate and the annular outer protruding part, an oil collecting groove is formed between the inner side of the cavity and the outer side of the supporting sleeve, the oil outlet gap is communicated with the oil collecting groove, at least four oil outlet holes are formed in the bottom of the oil collecting groove, extend to the bottom of the cavity, penetrate through the outside of the cavity and are connected with one ends of at least four oil outlet pipes respectively, and the other ends of the four oil outlet pipes are connected with the input end of the oil cooler;
the liquid level sensor is arranged in the oil collecting groove.
Preferably, the high-precision turning and milling composite turntable further comprises a connecting disc, wherein the connecting disc is connected to the top of the rotor of the torque motor, and the periphery of the connecting disc is connected with the outer rotor of the bearing assembly.
Preferably, the high-precision turning and milling composite turntable further comprises:
the first support is arranged in the supporting sleeve, and the bottom end of the first support is connected to the bottom of the sliding seat;
the angle encoder is connected to the top of the first support, the rotating disc of the angle encoder is connected with the connecting disc, and the center of the rotating disc and the center of the connecting disc are located on the same axis.
Preferably, the bottom of connection pad is equipped with the joint groove, high accuracy turning and milling compound revolving stage still includes:
the second support is arranged in the supporting sleeve, and the bottom end of the second support is connected to the bottom of the sliding seat;
the pneumatic clamp is connected to the top of the second support, is arranged in the clamping groove and can tighten or loosen the inner side of the clamping groove.
Preferably, a glue injection gap is radially arranged between the outer side of the support sleeve and the inner side of the mounting groove, a plurality of glue injection openings are circumferentially distributed on the outer side of the sliding seat, the glue injection openings are communicated with the glue injection gap, a plurality of vent holes are circumferentially distributed between the outer annular part and the bottom of the cavity, and the vent holes are communicated with the glue injection gap.
Preferably, the top of the cavity is provided with at least one annular raised line, the bottom of the workbench is provided with at least one annular chute, and at least one annular raised line is arranged in at least one annular chute.
The invention provides a high-precision turning and milling composite turntable, which has the beneficial effects that: the stator of the torque motor of the turntable is connected to the inner side of the supporting sleeve, the rotor of the torque motor is connected with the outer rotating body of the bearing assembly, the workbench is rotationally connected to the top of the cavity, and the workbench is connected with the outer rotating body of the bearing assembly; the turntable also adopts a double-cooling circulation system with the water cooling loop system supplying cooling water and the oil cooling loop system supplying cooling oil, so that heat generated by the torque motor and the bearing assembly is effectively taken away, the temperature of the turntable is controlled, the influence of temperature change on the precision of the turntable is solved, and the high precision and precision stability of the turntable are ensured.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular descriptions of exemplary embodiments of the invention as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the invention.
Fig. 1 shows a schematic front view and cross-sectional structure of a high precision turn-milling composite turret according to one embodiment of the invention.
Fig. 2 shows a schematic view of a water inlet channel structure of a water cooling circuit system of a high precision turning and milling composite turntable according to an embodiment of the present invention.
Fig. 3 shows a schematic view of the water outlet channel structure of a water cooling circuit system of a high precision turning and milling composite turntable according to an embodiment of the present invention.
Fig. 4 shows a schematic view of an oil feed channel structure of an oil cooling circuit system of a high precision turn-milling composite turntable according to an embodiment of the present invention.
Fig. 5 shows a schematic top and cross-sectional structural view of a high precision turn-down composite turret according to one embodiment of the invention.
Fig. 6 shows a schematic diagram of a glue gap structure of a high precision turn-milling composite turret according to one embodiment of the invention.
Reference numerals illustrate:
1. a slide; 2. a support sleeve; 3. an outer ring pressing plate; 4. a bearing; 5. a bearing sleeve; 6. an inner ring pressing plate; 7. a work table; 8. a connecting disc; 9. a torque motor; 10. a rotating disc; 11. an angle encoder; 12. a first support; 13. a pneumatic clamp; 14. a second support; 15. a stator; 16. a rotor; 17. a cooling tank; 18. a water inlet channel; 19. a water inlet pipe; 20. a water outlet channel; 21. a water outlet pipe; 22. a mounting groove; 23. an outer protruding portion; 24. an inner convex part; 25. an oil inlet pipe; 26. an oil inlet passage; 27. an oil outlet gap; 28. an oil sump; 29. an oil outlet hole; 30. an oil outlet pipe; 31. a clamping groove; 32. a glue injection gap; 33. a glue injection port; 34. an exhaust hole; 35. a convex strip; 36. a chute; 37. a liquid level sensor.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be 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 scope of the invention to those skilled in the art.
As shown in fig. 1, the present invention provides a high-precision turning and milling composite turntable, which comprises:
the sliding seat 1 is arranged in the machine tool, and the sliding seat 1 is used for being arranged on the bed of the machine tool;
the support sleeve 2 is connected inside the cavity;
the inner rotor of the bearing assembly is connected to the outer side of the supporting sleeve 2;
the torque motor 9, the stator 15 of the torque motor 9 is connected to the inner side of the supporting sleeve 2, the rotor 16 of the torque motor 9 is connected with the outer rotor of the bearing assembly, and a cooling groove 17 is arranged between the stator 15 of the torque motor 9 and the inner side of the supporting sleeve 2;
the workbench 7 is rotationally connected to the top of the cavity, and the workbench 7 is connected with an outer rotating body of the bearing assembly;
the water cooling loop system is communicated with the cooling groove 17;
an oil cooling circuit system in communication with the interior of the bearing assembly.
In particular, in order to solve the problems that a turning and milling composite turntable directly driven by a torque motor reduces mechanical transmission links, avoids the influence of a transmission chain on the precision of the turntable, has the characteristics of high dynamic performance, has wide application on a small turntable, but has few applications on a large turntable, mainly uses a mechanical structure, has a complex structure, is obviously affected by heat and is difficult to ensure the precision, the invention provides a high-precision turning and milling composite turntable, a sliding seat 1 of the turntable is the basis of the whole turntable and is arranged on a lathe bed of a machine tool, a stator 15 of a torque motor 9 of the turntable is connected at the inner side of a supporting sleeve 2, a rotor 16 of the torque motor 9 is connected with an outer rotating body of a bearing assembly, a workbench 7 is rotatably connected at the top of a cavity, and the workbench 7 is connected with the outer rotating body of the bearing assembly, when the rotor 16 of the torque motor 9 rotates, the workbench 7 can be driven to rotate so as to realize the processing of parts on the workbench 7, and has the characteristics of simple structure, compact design and convenient manufacture, and high rigidity, high precision and high dynamic response, and the composite processing requirements of rotating parts with complex structures are met; the turntable also adopts a double-cooling circulation system with a water cooling loop system for supplying cooling water and an oil cooling loop system for supplying cooling oil, so that heat generated by the torque motor 9 and the bearing assembly is effectively taken away, the temperature of the turntable is controlled, the influence of temperature change on the precision of the turntable is solved, and the high precision and precision stability of the turntable are ensured.
Preferably, the high-precision turning and milling composite turntable further comprises a connecting disc 8, wherein the connecting disc 8 is connected to the top of a rotor 16 of the torque motor 9, and the periphery of the connecting disc 8 is connected with an outer rotor of the bearing assembly.
As shown in fig. 2, 3 and 5, the cooling tank 17 is preferably spirally arranged from top to bottom, and the water cooling circuit system:
a water cooling machine;
a water inlet channel 18 is arranged in the support sleeve 2, one end of the water inlet channel 18 is communicated with the bottom of the spiral cooling groove 17, the other end of the water inlet channel 18 is connected with one end of a water inlet pipe 19, and the other end of the water inlet pipe 19 penetrates through the side wall of the cavity and is connected with the output end of the water cooler;
the inside of the support sleeve 2 is provided with a water outlet channel 20, one end of the water outlet channel 20 is communicated with the top of the spiral cooling groove 17, the other end of the water outlet channel 20 is connected with one end of a water outlet pipe 21, and the other end of the water outlet pipe 21 penetrates through the side wall of the cavity and is connected with the input end of the water cooler.
Specifically, the cooling water of the water cooling loop system comes from the water cooler, enters the cooling groove 17 between the stator 15 of the torque motor 9 and the inner side of the main support sleeve 2 through the water inlet channel 18, cools the torque motor 9, and flows back to the external water cooler through the water outlet channel 20 to form a cooling loop. The heat generated by the torque motor 9 is effectively taken away, the temperature of the turntable is controlled, the influence of temperature change on the precision of the turntable is solved, and the high precision and the precision stability of the turntable are ensured.
Preferably, the inside bottom of cavity is equipped with mounting groove 22, and the outside of supporting sleeve 2 is equipped with annular outer convex part 23, and the bottom of supporting sleeve 2 is pegged graft in mounting groove 22, and the bottom of annular outer convex part 23 is connected in the bottom of cavity, and the bearing assembly sets up at annular outer convex part 23 top.
Specifically, the mounting groove 22 and the annular outer flange 23 serve to secure the support sleeve 2 in the carriage 1.
Preferably, the support sleeve 2 is provided with an annular mounting surface on the outside thereof and above the annular outer flange 23, and the bearing assembly comprises:
the bottom of the inner ring of the bearing 4 is connected to the annular mounting surface;
the inner ring pressing plate 6 is connected to the top of the supporting sleeve 2 and is pressed and connected to the top of the inner ring of the bearing 4;
the outer ring pressing plate 3 is pressed and connected to the bottom of the outer ring of the bearing 4 by the outer ring pressing plate 3;
the bearing housing 5, the bottom of bearing housing 5 is connected with outer lane clamp plate 3, and the inboard of bearing housing 5 is equipped with annular interior convex part 24, and annular interior convex part 24 crimping is at the outer lane top of bearing 4, and the top of bearing housing 5 is connected with workstation 7.
Specifically, the connecting disc 8 is used for being connected with the bearing sleeve 5, and the rotor 16 of the torque motor 9 rotates to drive the connecting disc 8 and the bearing sleeve 5 to rotate, so that the workbench 7 is driven to rotate;
the supporting sleeve 2, the bearing 4, the inner ring pressing plate 6, the outer ring pressing plate 3, the bearing sleeve 5, the torque motor 9 and the connecting disc 8 form a rotary table driving module, and the rotary table driving module is connected with the sliding seat 1 through the supporting sleeve 2 and can be integrally disassembled and assembled, so that the assembly and the debugging and the later maintenance are convenient.
As shown in fig. 4 and 5, the oil cooling circuit system preferably includes:
an oil cooler;
the two oil inlet pipes 25 are respectively arranged at two sides of the supporting sleeve 2, one end of each oil inlet pipe 25 is plugged, the other end of each oil inlet pipe 25 penetrates through the side wall of the cavity and is connected with the output end of the oil cooler, a plurality of oil inlet holes are formed in the side wall of each oil inlet pipe 25, a plurality of oil inlet channels 26 are respectively formed in two sides of the inside of the supporting sleeve 2, one end of each oil inlet channel 26 on each side is communicated with the inner side of the bearing so as to be used for lubricating and cooling the bearing 4, and the other end of each oil inlet channel 26 on each side is respectively connected with the plurality of oil inlet holes of one oil inlet pipe 25;
an oil outlet gap 27 is formed between the outer ring pressing plate 3 and the annular outer part 23, an oil collecting groove 28 is formed between the inner side of the cavity and the outer side of the supporting sleeve 2, the oil outlet gap 27 is communicated with the oil collecting groove 28, at least four oil outlet holes 29 are formed in the bottom of the oil collecting groove 28, the at least four oil outlet holes 29 extend to the bottom of the cavity, penetrate through the outside of the cavity and are connected with one ends of at least four oil outlet pipes 30 respectively, and the other ends of the four oil outlet pipes 30 are connected with the input end of the oil cooler;
a liquid level sensor 37, the liquid level sensor 37 being disposed within the sump 28.
Specifically, the cooling oil of the oil cooling loop system comes from an external oil cooler, enters the bearing 4 through the oil inlet pipe 25 and the oil inlet channel 26, cools the bearing 4 and plays a role in lubrication, and flows back to the external oil cooler through the oil outlet gap 27, the oil collecting groove 28, the oil outlet hole 29 and the oil outlet pipe 30 to form an oil cooling loop. The heat generated by the torque motor 9 and the bearing 4 is effectively taken away, the temperature of the turntable is controlled, the influence of temperature change on the precision of the turntable is solved, and the high precision and the precision stability of the turntable are ensured;
the level sensor 37 is used to detect the level of cooling oil in the sump 28, preventing circuit blockage and overflow of cooling oil.
Preferably, the high precision turning and milling composite turntable further comprises:
the first support 12 is arranged in the support sleeve 2, and the bottom end of the first support 12 is connected to the bottom of the sliding seat 1;
the angle encoder 11, the angle encoder 11 is connected at the top of first support 12, and the rotary disk 10 of angle encoder 11 is connected with connection pad 8, and the center of rotary disk 10 and the center of connection pad 8 are located same axis.
Specifically, the angle encoder 11 and the first support 12 form a position feedback system of the turntable, one end of the encoder 11 is fixed on the slide seat 1 through the first support 12 and is static, and the other end of the encoder 11 is connected to the connecting disc 8 through the rotating disc 10 and rotates together with the workbench 7, so that high-precision feedback of the rotating angle of the workbench 7 is realized.
Preferably, the bottom of connection pad 8 is equipped with joint groove 31, and high accuracy turning and milling compound revolving stage still includes:
the second support 14 is arranged in the support sleeve 2, and the bottom end of the second support 14 is connected to the bottom of the sliding seat 1;
the pneumatic clamp 13, the pneumatic clamp 13 is connected at the top of the second support 14, the pneumatic clamp 13 is arranged in the clamping groove 31, and the pneumatic clamp 13 can tighten or loosen the inner side of the clamping groove 31.
Specifically, the pneumatic clamp 13 and the second support 14 form a locking system of the turntable, when the pneumatic clamp 13 is in a locking state, the pneumatic clamp 13 is outwards supported to lock the connecting disc 8, so that the workbench 7 is fixed, and when the pneumatic clamp 13 is in a loosening state, the pneumatic clamp 13 is separated from the connecting disc 8, and the workbench 7 is driven to rotate by the torque motor 9.
As shown in fig. 6, preferably, a glue injection gap 32 is radially arranged between the outer side of the support sleeve 2 and the inner side of the mounting groove 22, a plurality of glue injection openings 33 are circumferentially distributed on the outer side of the sliding seat 1, the glue injection openings 33 are communicated with the glue injection gap 32, a plurality of vent holes 34 are circumferentially distributed between the annular outer flange 23 and the bottom of the cavity, and the vent holes 34 are communicated with the glue injection gap 32.
The positioning glue is filled in the glue injection gap 32 which is arranged in the radial direction, so that high-rigidity connection between the support sleeve 2 and the mounting groove 22 is realized, and meanwhile, the assembly difficulty of the high-precision turning and milling composite turntable is greatly reduced; a plurality of vent holes 34 are reserved, positioning glue is injected from a glue injection port 33 through a special glue injection tool, so that the reserved glue injection gap 32 can be filled with the positioning glue, the contact area is increased, and the supporting rigidity of the sliding seat 1 to the supporting sleeve 2 is ensured;
when injecting glue, injecting glue from one glue injecting port 33, blocking other glue injecting ports 33, when the positioning glue is discharged from a certain vent hole 34, blocking the vent hole until all the positioning glue is discharged from all vent holes 34, and in the glue injecting process, if the glue injecting pressure of the current glue injecting port 33 is found to be greatly increased, blocking the glue injecting port 33, replacing the glue injecting port 33 to other glue injecting ports 33, and continuing to inject glue until all the positioning glue is discharged from all vent holes 34.
Preferably, the top of the cavity is provided with at least one annular ridge 35, the bottom of the table 7 is provided with at least one annular chute 36, and the at least one annular ridge 35 is arranged in the at least one annular chute 36.
Specifically, a tiny gap is formed between the raised line 35 and the chute 36, and at least one annular raised line 35 and at least one annular chute 36 form a labyrinth seal structure for playing a role in labyrinth seal on the cavity, preventing cutting fluid or scrap iron in the processing area from entering the turntable, and affecting lubricating oil or internal structure.
In summary, when the high-precision turning and milling composite turntable is implemented, the rotor 16 of the torque motor 9 of the turntable rotates to drive the connecting disc 8 and the bearing sleeve 5 to rotate so as to drive the workbench 7 to rotate, so that parts on the workbench 7 are machined, the supporting sleeve 2, the bearing 4, the inner ring pressing plate 6, the shaft outer ring pressing plate 3, the bearing sleeve 5, the torque motor 9 and the connecting disc 10 form a turntable driving module, the turntable driving module is connected with the sliding seat 1 through the supporting sleeve 2, and the turntable driving module can be integrally disassembled and assembled, is convenient for assembly and debugging and later maintenance, has the characteristics of simple structure, compact design and convenient manufacturing, and has high rigidity, high precision and high dynamic response, and meets the composite machining requirement of rotating parts with complex structures.
The cooling water of the water cooling loop system of the turntable comes from the water cooler, enters into the cooling groove 17 between the stator 15 of the torque motor 9 and the inner side of the main support sleeve 2 through the water inlet channel 18, cools the torque motor 9, and flows back to the external water cooler through the water outlet channel 20 to form a cooling loop. The heat generated by the torque motor is effectively taken away, the temperature of the turntable is controlled, the influence of temperature change on the precision of the turntable is solved, and the high precision and the precision stability of the turntable are ensured.
The cooling oil of the oil cooling loop system of the turntable comes from an external oil cooler, enters the bearing 4 through the oil inlet pipe 25 and the oil inlet channel 26, cools the bearing 4 and plays a role in lubrication, and the cooling oil flows back to the external oil cooler through the oil outlet gap 27, the oil collecting groove 28, the oil outlet hole 29 and the oil outlet pipe 30 to form an oil cooling loop. The heat generated by the torque motor and the bearing assembly is effectively taken away, the temperature of the turntable is controlled, the influence of temperature change on the precision of the turntable is solved, and the high precision and the precision stability of the turntable are ensured.
The turntable adopts a modularized design, and the driving, locking and position feedback of the turntable are mutually independent and are not influenced.
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (10)
1. The utility model provides a compound revolving stage of high accuracy turning, its characterized in that, this revolving stage includes:
the sliding seat is internally provided with a cavity and is used for being arranged on a lathe bed of a machine tool;
the support sleeve is connected to the inside of the cavity;
the inner rotor of the bearing assembly is connected to the outer side of the supporting sleeve;
the stator of the torque motor is connected to the inner side of the supporting sleeve, the rotor of the torque motor is connected with the outer rotor of the bearing assembly, and a cooling groove is formed between the stator of the torque motor and the inner side of the supporting sleeve;
the workbench is rotationally connected to the top of the cavity and is connected with the outer rotating body of the bearing assembly;
the water cooling loop system is communicated with the cooling groove;
an oil cooling circuit system in communication with an interior of the bearing assembly.
2. The high-precision turning and milling composite turntable according to claim 1, wherein the cooling grooves are spirally arranged from top to bottom, and the water cooling loop system comprises:
a water cooling machine;
a water inlet channel is arranged in the support sleeve, one end of the water inlet channel is communicated with the bottom of the spiral cooling groove, the other end of the water inlet channel is connected with one end of a water inlet pipe, and the other end of the water inlet pipe penetrates through the side wall of the cavity and is connected with the output end of the water cooler;
the inside of supporting sleeve is equipped with the water outlet channel, the one end of water outlet channel with spiral cooling tank top intercommunication, the other end of water outlet channel is connected with the one end of outlet pipe, the other end of outlet pipe wears to establish the lateral wall of cavity, and with the input of water-cooling machine is connected.
3. The high-precision turning and milling composite rotary table according to claim 1, wherein an installation groove is formed in the bottom of the inner side of the cavity, an annular outer protruding portion is arranged on the outer side of the supporting sleeve, the bottom of the supporting sleeve is inserted into the installation groove, the bottom of the annular outer protruding portion is connected to the bottom of the cavity, and the bearing assembly is arranged on the top of the annular outer protruding portion.
4. A high precision turning and milling composite turntable as claimed in claim 3, wherein the outer side of the support sleeve is provided with an annular mounting surface and is positioned above the annular outer flange, and the bearing assembly comprises:
the bottom of the inner ring of the bearing is connected to the annular mounting surface;
the inner ring pressing plate is connected to the top of the supporting sleeve and is pressed and connected to the top of the inner ring of the bearing;
the outer ring pressing plate is in press connection with the bottom of the outer ring of the bearing;
the bearing sleeve, the bottom of bearing sleeve with outer lane clamp plate is connected, the inboard of bearing sleeve is equipped with annular interior convex part, annular interior convex part crimping is in the outer lane top of bearing, the top of bearing sleeve with the workstation is connected.
5. A high precision turn-down composite turret according to claim 3, wherein the oil cooling circuit system comprises:
an oil cooler;
the two oil inlet pipes are respectively arranged at two sides of the supporting sleeve, one end of each oil inlet pipe is plugged, the other end of each oil inlet pipe penetrates through the side wall of the cavity and is connected with the output end of the oil cooler, a plurality of oil inlet holes are formed in the side wall of each oil inlet pipe, a plurality of oil inlet channels are respectively formed in two sides of the inside of the supporting sleeve, one end of each oil inlet channel is communicated with the inner side of the bearing so as to be used for lubricating and cooling the bearing, and the other end of each oil inlet channel is respectively connected with one oil inlet hole of each oil inlet pipe;
an oil outlet gap is formed between the outer ring pressing plate and the annular outer protruding part, an oil collecting groove is formed between the inner side of the cavity and the outer side of the supporting sleeve, the oil outlet gap is communicated with the oil collecting groove, at least four oil outlet holes are formed in the bottom of the oil collecting groove, extend to the bottom of the cavity, penetrate through the outside of the cavity and are connected with one ends of at least four oil outlet pipes respectively, and the other ends of the four oil outlet pipes are connected with the input end of the oil cooler;
the liquid level sensor is arranged in the oil collecting groove.
6. The high precision turn-down composite turret of claim 1 further comprising a land connected to a rotor top of the torque motor, a periphery of the land being connected to an outer rotor of the bearing assembly.
7. The high precision turn-down composite turret of claim 6, further comprising:
the first support is arranged in the supporting sleeve, and the bottom end of the first support is connected to the bottom of the sliding seat;
the angle encoder is connected to the top of the first support, the rotating disc of the angle encoder is connected with the connecting disc, and the center of the rotating disc and the center of the connecting disc are located on the same axis.
8. The high-precision turning and milling composite turntable as claimed in claim 6, wherein the bottom of the connecting disc is provided with a clamping groove, and the high-precision turning and milling composite turntable further comprises:
the second support is arranged in the supporting sleeve, and the bottom end of the second support is connected to the bottom of the sliding seat;
the pneumatic clamp is connected to the top of the second support, is arranged in the clamping groove and can tighten or loosen the inner side of the clamping groove.
9. The high-precision turning and milling composite rotary table according to claim 3, wherein a glue injection gap is radially arranged between the outer side of the supporting sleeve and the inner side of the mounting groove, a plurality of glue injection openings are circumferentially distributed on the outer side of the sliding seat and are communicated with the glue injection gap, a plurality of vent holes are circumferentially distributed between the annular outer protruding portion and the bottom of the cavity, and the vent holes are communicated with the glue injection gap.
10. The high-precision turning and milling composite turntable according to claim 1, wherein at least one annular protruding strip is arranged at the top of the cavity, at least one annular chute is arranged at the bottom of the workbench, and at least one annular protruding strip is arranged in the at least one annular chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310980314.1A CN116690241A (en) | 2023-08-07 | 2023-08-07 | High-precision turning and milling composite rotary table |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310980314.1A CN116690241A (en) | 2023-08-07 | 2023-08-07 | High-precision turning and milling composite rotary table |
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| CN116690241A true CN116690241A (en) | 2023-09-05 |
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| CN202310980314.1A Pending CN116690241A (en) | 2023-08-07 | 2023-08-07 | High-precision turning and milling composite rotary table |
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Cited By (1)
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|---|---|---|---|---|
| CN117583949A (en) * | 2024-01-19 | 2024-02-23 | 山东豪迈数控机床有限公司 | Revolving stage and lathe |
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