CN115476172A - Single-support five-axis cradle numerical control rotary table - Google Patents
Single-support five-axis cradle numerical control rotary table Download PDFInfo
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- CN115476172A CN115476172A CN202211303844.4A CN202211303844A CN115476172A CN 115476172 A CN115476172 A CN 115476172A CN 202211303844 A CN202211303844 A CN 202211303844A CN 115476172 A CN115476172 A CN 115476172A
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- 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
- B23Q1/72—Auxiliary arrangements; Interconnections between auxiliary tables and movable machine elements
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- 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
- B23Q1/72—Auxiliary arrangements; Interconnections between auxiliary tables and movable machine elements
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Abstract
The invention discloses a single-support five-axis cradle numerical control turntable, which comprises: the turntable inclining piece comprises a turntable mounting seat, a first power piece, a first speed reduction output piece and a first coding piece, wherein the first power piece outputs torque to the first speed reduction output piece connected to the turntable mounting seat, and the first coding piece detects the output rotating speed of the first power piece in real time; the rotary table rotating piece comprises a rotary mounting seat, a second power piece, a second speed reduction output piece and a second coding piece, and the rotary mounting seat is arranged on the first speed reduction output piece and is driven by the first speed reduction output piece; the second power part outputs torque to the second speed reduction output part connected to the second power part on the rotary mounting seat, the second speed reduction output part is used for mounting a workpiece to be machined, and the second encoding part detects the rotating speed output by the second power part in real time on the second power part. The invention has the advantages of reasonable design, innovative structure, compact structure, simple and convenient processing, simple installation, small volume occupation and low disk surface height.
Description
Technical Field
The invention relates to the technical field of machine tool accessories, in particular to a single-support five-axis cradle numerical control rotary table.
Background
The single-support five-axis cradle numerical control turntable is a machine tool accessory, can be installed on a working table top of a common 3-axis CNC machine tool, expands the number of processing axes of the machine tool to 5 axes, and is matched with a numerical control system to process more complex curved surface-shaped parts or process a plurality of surfaces by clamping once to improve the processing precision and efficiency. At present, most five-axis cradle rotary tables on the market are of double-support structures, namely, a driven support assembly is arranged at the other end of a driving inclined shaft, so that two-point support is realized on a rotating shaft structurally, and the five-axis cradle rotary tables have better processing rigidity.
However, the double-support turntable has the following disadvantages: firstly, in the actual production, assembly and application processes of the rotary table, the double-support structure can bring difficulties in the processing and assembly of the rotary table; moreover, as the driven part of the inclined shaft of the double-support rotary table occupies part of the volume and the length, for some small-stroke machine tools, after the five-axis cradle rotary table is installed, the stroke of part of the processing shaft can be greatly influenced, even interference can be generated between the five-axis cradle rotary table and a tool changing mechanism of the machine tool on some small-sized drilling and tapping centers, and the application range of the five-axis cradle rotary table is obviously limited. For a five-axis cradle turntable, the orthogonality of a rotating shaft and a tilting shaft is an important index for evaluating the precision of the turntable, and due to the existence of the double-support structure of the tilting shaft, the requirement on the height difference between the rotating shafts of a driving end and a driven end of the tilting shaft and a mounting bottom surface reference is extremely strict during machining, which brings great challenges to the machining; when the whole machine is assembled, the coaxiality adjustment of the rotation axes of the driving end and the driven end of the inclined shaft also brings great challenges to the whole machine assembly.
In view of the above, in some small five-axis machining fields, under the condition that the rigidity of the rotary table meets the requirements, a single-support five-axis cradle numerical control rotary table is designed, the difficulties brought by the double-support five-axis cradle numerical control rotary table in machining and assembling can be basically avoided, and meanwhile, the volume and the length occupied by the driven end part of the inclined shaft are saved, so that the application range of the cradle five-axis is remarkably expanded.
Disclosure of Invention
In order to overcome the defects, the invention provides a single-support five-axis cradle numerical control turntable, which specifically adopts the following technical scheme:
a single-support five-axis cradle numerical control turntable comprises:
the turntable inclining piece comprises a turntable mounting seat, a first power piece, a first speed reduction output piece and a first coding piece, wherein the first power piece outputs torque to the first speed reduction output piece connected to the turntable mounting seat, and the first coding piece detects the output rotating speed of the first power piece in real time;
the rotary table rotating part is arranged on the rotary table inclined part and comprises a rotary mounting seat, a second power part, a second speed reduction output part and a second coding part, and the rotary mounting seat is arranged on the first speed reduction output part and is driven by the first speed reduction output part; the second power part is arranged on the rotary mounting seat and outputs torque to the second speed reduction output part connected with the second power part, the second speed reduction output part is used for mounting a workpiece to be machined, and the second encoding part is arranged on the second power part and detects the rotating speed output by the second encoding part in real time.
Preferably, the first power part comprises a motor shell, a motor stator and a rotor shaft system, the motor shell is fastened in the first mounting hole of the rotary table mounting seat, and a motor rear end cover is arranged on one port of the motor shell.
Preferably, the rotor shaft system comprises a first bearing, a second bearing and a motor rotor, wherein the first bearing is embedded in one end of the motor shell and is limited in axial displacement by a first bearing pressure plate fastened on the end face; the second bearing is embedded in a second bearing mounting hole of the rear end cover of the motor, one end of the motor rotor is embedded in the first bearing, and the other end of the motor rotor is embedded in the second bearing, so that the circumferential stability and the axial stability of the motor rotor are improved.
Preferably, the first speed reduction output part comprises a first harmonic speed reducer and a first output part, and the first harmonic speed reducer and the first output part are both arranged on the turntable mounting seat; the first harmonic reducer comprises a rigid gear, a flexible gear and a wave generator, wherein one end of the flexible gear is fastened on one end face of the motor shell, the wave generator is embedded in the other end of the flexible gear, the wave generator is fixedly connected with one end of the motor rotor, and the rigid gear is sleeved on the other end of the flexible gear.
Preferably, the first output part comprises a turntable bearing, an output flange, a first transition sleeve and a first protection pipe, the turntable bearing is fastened in the first mounting hole, one end of the output flange is embedded in the turntable bearing, the output flange is fastened on one end face of the rigid wheel, meanwhile, a first oil seal is sleeved on the output flange, and the first oil seal is embedded in the first mounting hole; the first transition sleeve is fastened on the other end face of the rigid wheel, a second oil seal is sleeved on the free end of the first transition sleeve, and meanwhile the second oil seal is embedded in the first mounting hole.
Preferably, one end of the first protection pipe is fixedly connected in the mounting hole of the output flange, and one end of the first protection pipe is in dynamic seal with the wave generator through a third oil seal sleeved on the first protection pipe; the other end of the first protection pipe sequentially penetrates through the motor rotor and the rear end cover of the rotary table mounting seat; and a third bearing is sleeved at the other end of the first protection pipe, the third bearing is embedded in an end surface hole in the rear end cover of the turntable mounting base, and a fourth oil seal is arranged between the first protection pipe and the end surface hole in the rear end cover of the turntable mounting base.
Preferably, the first coding part comprises an encoder, the encoder is installed on the rear end cover of the motor, and the encoder is sleeved on the other end of the motor rotor; the rear end cover of the rotary table mounting seat is provided with a cable rear end cover, and the cable rear end cover is provided with a cable terminal.
Preferably, a second mounting hole is formed in the rotary mounting seat, and the second mounting hole is communicated with one side face of the rotary mounting seat through a threading through hole; one side surface of the rotary mounting seat is fastened on the output flange, the second mounting hole is communicated with the first protection pipe through the threading through hole, and meanwhile, labyrinth seal is formed between the rotary mounting seat and the rotary table mounting seat; a crossed roller bearing is fastened in the second mounting hole; the second power part has the same structure as the first power part, and a motor shell of the second power part is fastened in the second mounting hole.
Preferably, the second speed reduction output part comprises a second harmonic speed reducer and a second output part, the second harmonic speed reducer has the same structure as the first harmonic speed reducer, a flexible gear of the second harmonic speed reducer is connected with a motor rotor of the second power part in the same way as the flexible gear is connected with the motor rotor, and an open end of the flexible gear of the second harmonic speed reducer is fastened between a motor casing of the second power part and an outer ring of the crossed roller bearing; and a rigid wheel of the second harmonic reducer is fastened on an inner ring of the crossed roller bearing.
Preferably, the second output part comprises a deep groove ball bearing, an output shaft, a second protection pipe and a chuck, the deep groove ball bearing is embedded in a bearing chamber in the second mounting hole, one end of the output shaft is embedded in the deep groove ball bearing, and one end of the output shaft is fastened on a rigid wheel of the second harmonic reducer; one end of the second protection pipe is fixedly connected to the output shaft, and the chuck is fastened to the other end of the output shaft.
The invention at least comprises the following beneficial effects:
1) The single-support five-axis cradle numerical control turntable is reasonable in design, innovative in structure, compact in structure, simple and convenient to machine, simple to install, small in occupied volume and low in disc surface height;
2) The main bearing of the turntable tilting member in the single-support five-shaft cradle numerical control turntable adopts a high-precision high-bearing turntable bearing, so that the tilting moment of a rotating shaft can be borne on one hand, and a rigid wheel of a harmonic reducer can not bear the tilting moment when outputting, and only rotation output is provided; the diameter of the output end face of the harmonic reducer is enlarged by the high-precision high-bearing turntable bearing, so that the output rigidity of the whole machine is obviously improved;
3) Cables required in the single-support five-axis cradle numerical control rotary table are completely hidden in the machine shell, multiple layers of O-shaped rings and oil seals are adopted between the machine shells for static and dynamic sealing, and the machine shell is subjected to light weight treatment while a wiring space is reserved, so that the whole machine can reduce the weight of the machine as much as possible while realizing simplification of wiring, and high speed, high rigidity and high energy utilization efficiency during processing output are realized;
4) On the basis of realizing two-shaft linkage, the single-support five-shaft cradle numerical control rotary table has no other internal cooling pipelines, and compared with the traditional complex internal cooling pipeline in a direct-drive mode, the single-support five-shaft cradle numerical control rotary table is simple in layout and convenient to install and debug; the whole machine adopts a compact design, so that the volume of the whole machine is obviously reduced, the height of a processing disc surface is lower, the positive and negative 360-degree rotation of an inclined shaft can be realized, a threading through hole and a second protection pipe are reserved on a rotary part of the rotary table, devices such as a rotary joint and the like can be conveniently and automatically installed in the later period, and the rotary table can be matched with large and small stroke machine tools in the market;
5) The single-support five-shaft cradle numerical control turntable is simple to assemble and debug, does not need to adjust the coaxiality and the height difference of the driven end and the driving end of the inclined shaft, accelerates the assembly efficiency, can be installed on a client machine tool only by adjusting the axis of the C shaft, and is convenient and rapid in installation process.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a front view of a single-support five-axis cradle numerically controlled turntable according to the present invention;
FIG. 2 is a top view of a single-support five-axis cradle numerical control turntable according to the present invention;
FIG. 3 is a schematic view of the left side of the numerical control turntable of the single-support five-axis cradle according to the invention;
FIG. 4 is a schematic view of the right side three-dimensional structure of the single-support five-axis cradle numerical control turntable of the invention;
FIG. 5 isbase:Sub>A sectional front view taken along the direction A-A in FIG. 2 of the numerically controlled turntable of the single-support five-axis cradle according to the present invention;
FIG. 6 isbase:Sub>A schematic view ofbase:Sub>A sectional three-dimensional structure in the direction of A-A in FIG. 2 of the single-support five-axis cradle numerical control turntable of the present invention.
Wherein: 1-a turntable mounting base, 2-a motor case, 3-a motor stator, 4-a motor rear end cap, 5-a first bearing, 6-a second bearing, 7-a motor rotor, 9-a rigid gear, 10-a flexible gear, 11-a wave generator, 12-a turntable bearing, 13-an output flange, 14-a first transition sleeve, 15-a first protective tube, 20-an encoder, 21-a cable rear end cap, 22-a first cable terminal, 23-a second cable terminal, 24-a rotation mounting base, 25-a second power part, 26-a second harmonic reducer, 28-a threading through hole, 29-a crisscross roller bearing, 30-a deep groove ball bearing, 31-an output shaft, 32-a second protective tube, 33-a chuck, 34-a circular plate, and 35-a rear end cap of the turntable mounting base.
Detailed Description
Technical solutions of the present invention will be described in detail below by way of embodiments with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: the three cases of A alone, B alone and A and B together exist, and the term "/and" in this document describes another associated object relationship, which means that two relationships may exist, for example, A/and B, which may mean: a alone, and both a and B alone, and further, the character "/" in this document generally means that the former and latter associated objects are in an "or" relationship.
According to the figures 1-6, the single-support five-axis cradle numerical control turntable comprises a turntable tilting member and a turntable rotating member, wherein the turntable rotating member is arranged on the turntable tilting member. The turntable inclining member comprises a turntable mounting seat 1, a first power member, a first speed reduction output member and a first coding member, the first power member and the first speed reduction output member are arranged on the turntable mounting seat 1, and the first coding member is arranged on the first power member. The rotary table mounting seat 1 is mounted on a machine tool of a customer according to requirements. The turntable mounting base 1 is provided with a first mounting hole, and the first mounting hole is used for mounting the first power part and the first speed reduction output part.
The first power part comprises a motor shell 2, a motor stator 3 and a rotor shaft system, the motor shell 2 is arranged on the rotary table mounting seat 1, and the motor stator 3 and the rotor shaft system are arranged on the motor shell 2. The motor shell 2 is fastened in the first mounting hole through a first screw, and a motor rear end cover 4 is arranged on one port of the motor shell 2 to improve the sealing property in the motor shell 2. The motor stator 3 is arranged in the inner cavity of the motor shell 2. The rotor shafting includes first bearing 5, second bearing 6 and electric motor rotor 7, first bearing 5 with second bearing 6 all sets up on motor housing 2, electric motor rotor 7 sets up first bearing 5 with on the second bearing 6. The first bearing 5 is embedded in a first bearing mounting hole at one end of the motor shell 2, a first bearing plate is fastened on the free end face of the first bearing mounting hole through a second screw, and the first bearing plate is pressed on the outer ring free end face of the first bearing 5 so as to improve the axial stability of the first bearing 5. And the second bearing 6 is embedded in a second bearing mounting hole on the free end surface of the rear end cover 4 of the motor. One end of the motor rotor 7 is embedded in the first bearing 5, a first clamp spring is sleeved on one end of the motor rotor 7, and the first clamp spring abuts against the free end of the inner ring of the first bearing 5 so as to further improve the axial stability of the first bearing 5. The other end of the motor rotor 7 is embedded in the second bearing, so that the circumferential stability and the axial stability of the motor rotor 7 are improved.
The first speed reduction output part comprises a first harmonic speed reducer and a first output part, and the first harmonic speed reducer and the first output part are both arranged on the rotary table mounting seat 1. First harmonic speed reducer ware includes rigid gear 9, flexbile gear 10 and wave generator 11, rigid gear 9 sets up on the revolving stage mount pad 1, flexbile gear 10 sets up on the motor casing 2, wave generator 11 sets up on the rotor shaft system. One end of the flexible gear 10 is fastened on one end face of the motor shell 2 through a third screw, the wave generator 11 is embedded in the other end of the flexible gear 10, and the wave generator 11 is fastened on one end face of the motor rotor 7 through a fourth screw so as to be driven by the motor rotor 7. The rigid wheel 9 is sleeved on the other end of the flexible wheel 10, and the flexible wheel 10 is meshed with the rigid wheel 9 through internal and external teeth. And when the wave generator 11 rotates along with the motor rotor 7, the flexible gear 10 drives the rigid gear 9 to rotate at a reduced speed. Alternatively, the first harmonic reducer is a third harmonic reducer.
First output spare includes that revolving stage bearing 12, output flange 13, first transition cover 14 and first protective tube 15, revolving stage bearing 12 sets up on the revolving stage mount pad 1, output flange 13 sets up on the revolving stage bearing 12, first transition cover 14 sets up on the first harmonic speed reducer ware, first protective tube 15 sets up on the first transition cover 14. The rotary table bearing 12 is fastened in the first mounting hole through a fifth screw, one end of the output flange 13 is embedded in the rotary table bearing 12, the output flange 13 is fastened on one end face of the rigid wheel 9 through a sixth screw, meanwhile, a first oil seal is sleeved on the output flange 13, and the first oil seal is embedded in the first mounting hole at the same time, so that the output flange 13 and the rotary table mounting seat 1 are in dynamic sealing. The first transition sleeve 14 is also fastened to the other end face of the rigid wheel 9 by the sixth screw, so that the rigid wheel 9, the first transition sleeve 14 and the output flange 13 are connected in series. Further, a first O-ring is arranged between the output flange 13 and the rigid wheel 9 to improve static sealing between the output flange 13 and the rigid wheel 9. A second O-ring is arranged between the first transition sleeve 14 and the rigid wheel 9 to improve static sealing between the first transition sleeve 14 and the rigid wheel 9. The free end of the first transition sleeve 14 is sleeved with a second oil seal, and meanwhile, the second oil seal is embedded in the first mounting hole, so that the dynamic sealing performance between the first transition sleeve 14 and the rotary table mounting base 1 is improved.
One end of the first protection pipe 15 is fixedly connected in the mounting hole of the output flange 13, and one end of the first protection pipe 15 is in dynamic seal with the wave generator 11 through a sleeved third oil seal. The other end of the first protection pipe 15 successively penetrates through the motor rotor 7 and the rear end cover 35 of the rotary table mounting seat. The cover is equipped with the third bearing on 15 other ends of first protective tube, the third bearing inlays the dress simultaneously in the terminal surface hole on the rear end cap 35 of revolving stage mount pad, and install the second jump ring in the terminal surface hole on the rear end cap 35 of revolving stage mount pad, the second jump ring presses on the free end of third bearing outer lane, in order to improve third bearing axial stability. Meanwhile, a fourth oil seal is arranged between the first protection tube 15 and an end face hole in the rear end cover 35 of the rotary table mounting seat, so that the dynamic seal between the first protection tube 15 and the rear end cover 35 of the rotary table mounting seat is improved.
The first coding part comprises a coder 20, the coder 20 is installed on the motor rear end cover 4, and the coder 20 is sleeved on the other end of the motor rotor 7, so that the coder 20 can detect the rotating speed of the motor rotor 7 in real time.
The rear end cover 35 of the rotary table mounting seat is provided with a cable rear end cover 21, the cable rear end cover 21 is provided with a first cable terminal 22 and a second cable terminal 23, a third O-shaped ring is arranged between the cable rear end cover 21 and the rotary table mounting seat 1, and therefore the sealing performance between the cable rear end cover 21 and the rotary table mounting seat 1 is improved.
The rotary table rotating part comprises a rotating installation seat 24, a second power part 25, a second speed reduction output part and a second coding part, the rotating installation seat 24 is arranged on the rotary table installation seat 1, the second power part 25 and the second speed reduction output part are arranged on the rotating installation seat 24, and the second coding part is arranged on the second power part 25.
The rotary mounting seat 24 is provided with a second mounting hole, and the second mounting hole is communicated with one side surface of the rotary mounting seat 24 through a threading through hole 28. One side surface of the rotary mounting seat 24 is fastened on the output flange 13 through a seventh screw, so that the rotary mounting seat 24 is driven to rotate through the output flange 13, the second mounting hole is communicated with the first protection pipe 15 through the threading through hole 28, and meanwhile, the rotary mounting seat 24 and the turntable mounting seat 1 are sealed in a labyrinth manner. So that the cable wires led out from the first cable terminal 22 and the second cable terminal 23 pass through the first protection tube 15 and the threading through hole 28 and then are connected to the second power member 25 and the second coding member in the second mounting hole.
A cross roller bearing 29 is fastened in the second mounting hole, and further, an outer ring of the cross roller bearing 29 is fastened in the second mounting hole by an eighth screw. The second power part 25 has the same structure as the first power part, and the motor casing of the second power part 25 is also fastened in the second mounting hole by the eighth screw.
The second reduction output member includes a second harmonic speed reducer 26 and a second output member, the second harmonic speed reducer 26 is disposed on the cross roller bearing 29, and the second output member is disposed on the second mounting hole. The second harmonic reducer 26 has the same structure as the first harmonic reducer, the flexible gear of the second harmonic reducer 26 is connected to the motor rotor of the second power member 25 in the same manner as the flexible gear is connected to the motor rotor, and the open end of the flexible gear of the second harmonic reducer 26 is also fastened between the motor housing of the second power member 25 and the outer ring of the cross roller bearing 29 by the eighth screw. The ring gear of the second harmonic reducer 26 is fastened to the inner race of the cross roller bearing 29 by a ninth screw.
The second output spare includes deep groove ball bearing 30, output shaft 31, second protection tube 32 and chuck 33, deep groove ball bearing 30 sets up in the second mounting hole, output shaft 31 sets up on the deep groove ball bearing 30, chuck 33 sets up on the output shaft 31. The deep groove ball bearing 30 is embedded in the bearing chamber in the second mounting hole, and the free end surface of the outer ring of the deep groove ball bearing 30 is abutted by a second bearing plate fastened in the second mounting hole, so that the axial stability of the deep groove ball bearing 30 is improved. One end of the output shaft 31 is fitted into the deep groove ball bearing 30, and one end of the output shaft 31 is fastened to the rigid gear of the second harmonic reducer 26 by a tenth screw. The torque reduced by the second harmonic reducer 26 is output via the output shaft 31.
One end of the second protection pipe 32 is fixedly connected to the output shaft 31, and a fourth O-ring is arranged between the second protection pipe 32 and the output shaft 31, so that the second protection pipe 32 and the output shaft 31 are statically sealed. The chuck 33 is fastened to the other end of the output shaft 31 by an eleventh screw. Further, an annular plate 34 is fastened to the end face of the second mounting hole through a twelfth screw, and a fifth O-ring is arranged between the annular plate 34 and the rotary mounting seat 24, so that the annular plate 34 and the rotary mounting seat 24 are statically sealed. A fifth oil seal is arranged between the inner ring of the annular plate 34 and the output shaft 31, so that the output shaft 31 and the annular plate 34 are in dynamic seal.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. A single-support five-axis cradle numerical control rotary table is characterized by comprising:
the turntable inclining piece comprises a turntable mounting seat, a first power piece, a first speed reduction output piece and a first coding piece, wherein the first power piece outputs torque to the first speed reduction output piece connected to the turntable mounting seat, and the first coding piece detects the output rotating speed of the first power piece in real time;
the rotary table rotating part is arranged on the rotary table inclined part and comprises a rotary mounting seat, a second power part, a second speed reduction output part and a second coding part, and the rotary mounting seat is arranged on the first speed reduction output part and is driven by the first speed reduction output part; the second power part outputs torque to the second speed reduction output part connected to the second power part on the rotary mounting seat, the second speed reduction output part is used for mounting a workpiece to be machined, and the second coding part detects the output rotating speed of the second coding part on the second power part in real time.
2. The single-support five-shaft cradle numerical control turntable according to claim 1, wherein the first power part comprises a motor shell, a motor stator and a rotor shaft system, the motor shell is fastened in a first mounting hole of the turntable mounting seat, and a motor rear end cover is arranged on one port of the motor shell.
3. The single-support five-shaft cradle numerical control turntable according to claim 2, wherein the rotor shaft system comprises a first bearing, a second bearing and a motor rotor, the first bearing is embedded in one end of the motor shell, and the axial displacement is limited by a first bearing pressing plate fastened on the end surface; the second bearing is embedded in a second bearing mounting hole of the rear end cover of the motor, one end of the motor rotor is embedded in the first bearing, and the other end of the motor rotor is embedded in the second bearing, so that the circumferential stability and the axial stability of the motor rotor are improved.
4. The single-support five-axis cradle numerically controlled turntable of claim 3, wherein the first reduction output comprises a first harmonic reducer and a first output, both disposed on the turntable mount; the first harmonic reducer comprises a rigid gear, a flexible gear and a wave generator, wherein one end of the flexible gear is fastened on one end face of the motor shell, the wave generator is embedded in the other end of the flexible gear, the wave generator is fixedly connected with one end of the motor rotor, and the rigid gear is sleeved on the other end of the flexible gear.
5. The single-support five-shaft cradle numerical control rotary table according to claim 4, wherein the first output part comprises a rotary table bearing, an output flange, a first transition sleeve and a first protection pipe, the rotary table bearing is fastened in the first mounting hole, one end of the output flange is embedded in the rotary table bearing, the output flange is fastened on one end face of the rigid wheel, and meanwhile, a first oil seal is sleeved on the output flange and is embedded in the first mounting hole; the first transition sleeve is fastened on the other end face of the rigid wheel, a second oil seal is sleeved on the free end of the first transition sleeve, and meanwhile the second oil seal is embedded in the first mounting hole.
6. The single-support five-axis cradle numerical control rotary table according to claim 5, wherein one end of the first protection pipe is fixedly connected in the mounting hole of the output flange, and is in dynamic sealing with the wave generator through a third oil seal sleeved on the first protection pipe; the other end of the first protection pipe sequentially penetrates through the motor rotor and the rear end cover of the rotary table mounting seat; the other end of the first protection pipe is sleeved with a third bearing, the third bearing is embedded in an end face hole in the rear end cover of the rotary table mounting seat, and a fourth oil seal is arranged between the first protection pipe and the end face hole in the rear end cover of the rotary table mounting seat.
7. The single-support five-shaft cradle numerical control turntable according to claim 6, wherein the first coding piece comprises an encoder, the encoder is mounted on the rear end cover of the motor, and the encoder is sleeved on the other end of the rotor of the motor; the rear end cover of the rotary table mounting seat is provided with a cable rear end cover, and the cable rear end cover is provided with a cable terminal.
8. The single-support five-axis cradle numerical control turntable according to claim 7, wherein a second mounting hole is formed in the rotary mounting seat, and the second mounting hole is communicated with one side surface of the rotary mounting seat through a threading through hole; one side surface of the rotary mounting seat is fastened on the output flange, the second mounting hole is communicated with the first protection pipe through the threading through hole, and meanwhile, labyrinth seal is formed between the rotary mounting seat and the rotary table mounting seat; a crossed roller bearing is fastened in the second mounting hole; the second power part has the same structure as the first power part, and a motor shell of the second power part is fastened in the second mounting hole.
9. The single-support five-shaft cradle numerical control rotary table according to claim 8, wherein the second speed reduction output part comprises a second harmonic speed reducer and a second output part, the second harmonic speed reducer is structurally identical to the first harmonic speed reducer, a flexible gear of the second harmonic speed reducer is connected with a motor rotor of the second power part in a manner that the flexible gear is connected with the motor rotor, and an open end of the flexible gear of the second harmonic speed reducer is fastened between a motor shell of the second power part and an outer ring of the crossed roller bearing; and a rigid wheel of the second harmonic reducer is fastened on an inner ring of the crossed roller bearing.
10. The single-support five-shaft cradle numerical control rotary table according to claim 9, wherein the second output member comprises a deep groove ball bearing, an output shaft, a second protection pipe and a chuck, the deep groove ball bearing is embedded in a bearing chamber in the second mounting hole, one end of the output shaft is embedded in the deep groove ball bearing, and one end of the output shaft is fastened to a rigid wheel of the second harmonic reducer; one end of the second protection pipe is fixedly connected to the output shaft, and the chuck is fastened to the other end of the output shaft.
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| CN202211303844.4A CN115476172A (en) | 2022-10-24 | 2022-10-24 | Single-support five-axis cradle numerical control rotary table |
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