CN116372201B - Motorized spindle structure of numerical control machining center - Google Patents
Motorized spindle structure of numerical control machining center Download PDFInfo
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- CN116372201B CN116372201B CN202310537007.6A CN202310537007A CN116372201B CN 116372201 B CN116372201 B CN 116372201B CN 202310537007 A CN202310537007 A CN 202310537007A CN 116372201 B CN116372201 B CN 116372201B
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- 230000005540 biological transmission Effects 0.000 claims description 94
- 230000000670 limiting effect Effects 0.000 claims description 56
- 230000007246 mechanism Effects 0.000 claims description 14
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 13
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 13
- 241001330002 Bambuseae Species 0.000 claims description 13
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 13
- 239000011425 bamboo Substances 0.000 claims description 13
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 230000006978 adaptation Effects 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims 4
- 238000000429 assembly Methods 0.000 claims 4
- 230000005611 electricity Effects 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
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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
Abstract
The invention discloses an electric spindle structure of a numerical control machining center, which relates to the technical field of numerical control machining mechanical arms and solves the problem of low maintenance efficiency of an electric spindle of a mechanical arm.
Description
Technical Field
The invention relates to the technical field of numerical control machining mechanical arms, in particular to an electric spindle structure of a numerical control machining center.
Background
Robotic arms generally refer to a type of robotic arm that is programmable and has similar functions as a human arm; the arm may be a complete mechanical device or may be part of a more complex robot that is articulated to perform rotational or translational movements, the linkage of the robot through the joints ultimately forming a kinematic chain. Most numerical control machining centers use mechanical arms to perform full-automatic machining of products.
At present, when the mechanical arm is used, an electric spindle is usually installed at the head of the mechanical arm, and machining tools such as clamping, a drill bit, a cutter and the like are connected by using the electric spindle, so that the mechanical arm can work in different working modes. The electric spindle at the head of the mechanical arm mainly comprises a shell-free motor, a spindle, a bearing, a spindle unit shell, a driving module, a cooling device and the like, wherein the spindle bearing is sealed in the spindle unit shell through end covers at two ends, the end covers are generally connected with the spindle unit shell through a plurality of bolts, when the spindle bearing reaches a certain service life, a plurality of bolt groups are required to be rotated by a worker to detach the end covers, namely the worker needs to detach the end covers one by using a detaching tool, a great deal of manpower is required to be consumed, the labor intensity of the worker is increased, in addition, each bolt group needs to be screwed into the spindle unit shell again during assembly, and due to manual operation, the fact that the connecting holes between the end covers and the spindle unit shell are likely to be easily caused to be unable to guarantee alignment during assembly and detachment is improved, so that assembly errors between the end covers and the spindle unit shell are improved, and working time for maintaining the electric spindle bearing is further increased. Therefore, we propose an electric spindle structure of a numerical control machining center.
Disclosure of Invention
The invention aims to provide an electric spindle structure of a numerical control machining center for improving the maintenance efficiency of a spindle bearing, so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an electric spindle structure of numerical control machining center, includes arm, main shaft unit casing and two end covers, two the end cover is established the both ends of main shaft unit casing, the outside of main shaft unit casing is fixed with the connecting seat, the both ends of main shaft unit casing all are fixed with annular mounting panel, install the multiunit on the annular mounting panel be used for right the end cover with the spacing subassembly that annular mounting panel is connected, a plurality of spacing holes have been seted up to one side of end cover, the stopper of looks adaptation is inserted in the spacing hole and is equipped with, the stopper is kept away from the one end of spacing hole is fixed with the connecting plate, the connecting plate with spacing subassembly's output fixed connection, the annular mounting panel is kept away from one side of end cover is installed and is used for controlling multiunit spacing subassembly carries out simultaneous movement's drive assembly, the top both sides of arm are equipped with be used for with the connecting seat with the fixed subassembly that the arm carries out fixing.
Preferably, the limiting assembly comprises a first stud, a first threaded cylinder and a first gear, one end of the first stud is fixedly connected with the connecting plate, a through hole is formed in the annular mounting plate, the outer side of the first threaded cylinder is rotationally connected in the through hole through a bearing, the first stud is in threaded connection with the first threaded cylinder, the first gear is fixedly sleeved on the outer side of the first threaded cylinder, the first stud, the first threaded cylinder and the first gear are all provided with a plurality of gears, the transmission assembly is simultaneously connected with a plurality of first gears in a transmission mode, a plurality of first studs are away from one end of the connecting plate, a first limiting plate is fixed to one end of the connecting plate, and the annular mounting plate and the end cover are conveniently and rapidly assembled or disassembled through the limiting assembly.
Preferably, the transmission assembly comprises a slewing bearing, an annular gear, a second gear, a first transmission shaft and a driving piece, wherein the slewing bearing is fixed on the annular mounting plate, the annular gear is rotationally connected to the outer side of the slewing bearing, a plurality of first gears are respectively meshed with the annular gear in an annular array manner, the second gears are meshed with the annular gear, two ends of the first transmission shaft are respectively fixed with a second gear, the outer side of the first transmission shaft is rotationally connected with a first limiting seat, the first limiting seat is fixedly connected with the top of the connecting seat, the driving piece is fixedly installed on the outer wall of the main shaft unit shell, the output end of the driving piece is in transmission connection with the first transmission shaft, a second limiting seat is also fixed at the symmetrical position of the top of the connecting seat and the first limiting seat, a second transmission shaft is rotationally connected in the second limiting seat through a bearing, and the left side and the right side of the first transmission shaft are respectively provided with a synchronous mechanism used for being produced by the fixing assembly, and a plurality of first threaded cylinders are conveniently controlled to rotate through the transmission assembly.
Preferably, the driving piece comprises a driving motor, a U-shaped frame, a third gear and a fourth gear, wherein the driving motor is fixed on the outer wall of the main shaft unit shell through the U-shaped frame, the third gear is fixedly sleeved at the output end of the driving motor, and the fourth gear is fixedly sleeved at the outer side of the first transmission shaft and is meshed with the third gear to be connected, so that the driving piece is convenient to provide power for the transmission assembly.
Preferably, the fixed subassembly includes fixing base, second double-screw bolt, second screw thread section of thick bamboo and column latch segment, the fixing base is fixed the top of arm, the top of fixing base seted up with the recess of connecting seat bottom looks adaptation, the connecting seat is movably established in the recess, the left and right sides of connecting seat all symmetry is equipped with two locking grooves, the left and right sides of fixing base and with the coaxial position department of locking groove has seted up with the through-hole that is linked together of recess, the second screw thread passes through the bearing rotation and connects in the through-hole, the second double-screw bolt is located one end in the through-hole is fixed with column latch segment, column latch segment with locking groove looks adaptation, the second double-screw bolt is located the one end of outside and is fixed with the second limiting plate, second screw thread section of thick bamboo with second double-screw bolt threaded connection, the output of synchro mechanism with second screw thread section of thick bamboo transmission is connected, can further lock fixing connecting seat and arm through the fixed subassembly.
Preferably, the synchronous mechanism comprises a first belt wheel, a first belt, a second belt wheel, a third belt wheel, a second belt, a fourth belt wheel and a third transmission shaft, wherein the first belt wheel is fixedly sleeved on the outer side of the first transmission shaft and the outer side of the second transmission shaft, the second belt wheel is connected with the second belt wheel through the first belt transmission, the second belt wheel and the third belt wheel are fixedly sleeved on the outer side of the third transmission shaft, the outer side of the third transmission shaft is rotatably connected with a U-shaped seat through a bearing, one end of the U-shaped seat is fixedly connected with the outer wall of the connecting seat, the third belt wheel is fixedly connected with the fourth belt wheel through the second belt, the fourth belt wheel is fixedly sleeved on the outer side of the second threaded cylinder, a linkage piece is further arranged between the first transmission shaft and the second transmission shaft, a limiting assembly and a fixing assembly are formed through the synchronous mechanism, and the whole electric main shaft can be detached from the mechanical arm when the end cover is detached.
Preferably, the linkage piece comprises a fifth belt wheel, a third belt and a sixth belt wheel, wherein the fifth belt wheel is fixedly sleeved on the outer side of the first transmission shaft, the sixth belt wheel is fixedly sleeved on the outer side of the second transmission shaft, the fifth belt wheel is connected with the sixth belt wheel through the third belt transmission, and the linkage piece is convenient for transmitting power transmitted to the first transmission shaft to the second transmission shaft.
Preferably, the stopper is kept away from the one end of connecting plate is fixed with first magnetic path, spacing downthehole be fixed with the second magnetic path that first magnetic path cooperatees and use for the stopper can not appear rocking in spacing downthehole through the mutual attraction of two magnetic paths, improves the spacing effect to the end cover.
Compared with the prior art, the invention has the beneficial effects that:
when the internal bearing of the existing electric spindle structure is maintained, the transmission assembly is used for simultaneously dismantling the limit assembly between the spindle unit shell and the end covers, and the electric spindle structure is characterized in that the end covers at the two ends of the spindle unit shell can be dismantled simultaneously, so that convenience is brought to the dismantling process of the end covers, workers do not need to dismantle the electric spindle structure one by using a dismantling tool, the labor intensity of the workers is reduced, meanwhile, the limit assembly and the fixing assembly form linkage through the synchronous mechanism, the electric spindle can be integrally dismantled from the mechanical arm together when the end covers are dismantled, the installation and dismantling time of the electric spindle structure is further shortened, and the fact that the connection holes between the end covers and the spindle unit shell cannot be guaranteed to be aligned when the electric spindle structure is assembled and dismantled due to manual operation is avoided, so that the assembly error between the end covers and the spindle unit shell is reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a partial structure of the present invention;
FIG. 3 is a schematic view of a spacing assembly according to the present invention;
FIG. 4 is a schematic diagram of a transmission assembly according to the present invention;
FIG. 5 is a schematic view of a fixing assembly according to the present invention;
FIG. 6 is a schematic view of a part of the structure of the fixing assembly of the present invention;
FIG. 7 is a schematic diagram of a synchronous mechanism according to the present invention;
FIG. 8 is a schematic view of a stopper according to the present invention;
FIG. 9 is a side view of an end cap of the present invention;
fig. 10 is an enlarged view of area a in fig. 4.
In the figure: 1-a mechanical arm; 2-spindle unit housing; 3-end caps; 4-connecting seats; a 5-ring mounting plate; 6-limiting components; 7-limiting holes; 8-limiting blocks; 9-connecting plates; 10-a transmission assembly; 11-a fixed assembly; 12-a first stud; 13-a first thread cylinder; 14-a first gear; 15-a first limiting plate; 16-slewing bearing; 17-an inner gear ring; 18-a second gear; 19-a first drive shaft; 20-driving member; 21-a first limit seat; 22-a second limit seat; 23-a second drive shaft; 24-a synchronizing mechanism; 25-driving a motor; 26-U-shaped frames; 27-a third gear; 28-fourth gear; 29-a fixed seat; 30-a second stud; 31-a second thread cylinder; 32-a columnar locking block; 33-locking grooves; 34-a second limiting plate; 35-a first pulley; 36-a first belt; 37-a second pulley; 38-a third pulley; 39-a second belt; 40-fourth pulley; 41-a third drive shaft; 42-U-shaped seat; 43-linkage; 44-a fifth pulley; 45-a third belt; 46-sixth pulleys; 47-a first magnetic block; 48-second magnetic block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1: as shown in fig. 1-3, an electric spindle structure of a numerical control machining center in the drawing comprises a mechanical arm 1, a spindle unit shell 2 and two end covers 3, wherein the two end covers 3 are arranged at two ends of the spindle unit shell 2, a connecting seat 4 is fixed at the outer side of the spindle unit shell 2, annular mounting plates 5 are fixed at two ends of the spindle unit shell 2, a plurality of groups of limiting components 6 for connecting the end covers 3 and the annular mounting plates 5 are arranged on the annular mounting plates 5, a plurality of limiting holes 7 are arranged at one side of the end cover 3, limiting blocks 8 matched with the limiting holes 7 are inserted in the limiting holes 7, a connecting plate 9 is fixed at one end of the limiting block 8 far away from the limiting holes 7, the connecting plate 9 is fixedly connected with the output end of the limiting components 6, a transmission component 10 for controlling the plurality of groups of limiting components 6 to move simultaneously is arranged at one side of the annular mounting plates 5 far away from the end cover 3, the two sides of the top of the mechanical arm 1 are provided with the fixing components 11 for fixing the connecting seat 4 and the mechanical arm 1, when the internal bearing of the existing electric spindle structure is maintained, the limiting components 6 between the spindle unit shell 2 and the end covers 3 can be removed simultaneously by using the transmission component 10, which is significant in that the end covers 3 at the two ends of the spindle unit shell 2 can be removed simultaneously, the removal process of the end covers 3 is facilitated, thereby the removal process of the end covers 3 is carried out without the help of workers by bare hands by using the removal tool, the labor intensity of the workers is reduced, meanwhile, the limiting components 6 and the fixing components 11 form linkage by the synchronous mechanism 24, the electric spindle can be removed from the mechanical arm 1 integrally when the end covers 3 are removed, the mounting and removing time of the electric spindle structure is further shortened, the problem that the alignment of the connecting holes between the end cover 3 and the spindle unit housing 2 cannot be ensured during assembly and disassembly due to manual operation is avoided, and thus the assembly error between the end cover 3 and the spindle unit housing 2 is reduced.
Wherein, as shown in fig. 3 and fig. 4, in order to be convenient for assemble or dismantle annular mounting panel 5 and end cover 3 fast, spacing subassembly 6 includes first double-screw bolt 12, first screw thread section of thick bamboo 13 and first gear 14, the one end and the connecting plate 9 fixed connection of first double-screw bolt 12, the through-hole has been seted up on the annular mounting panel 5, the outside of first screw thread section of thick bamboo 13 passes through the bearing and rotates to be connected in the through-hole, first double-screw bolt 12 and first screw thread section of thick bamboo 13 threaded connection, the outside at first screw thread section of thick bamboo 13 is fixed to cup joint to first gear 14, first double-screw bolt 12, first screw thread section of thick bamboo 13 and first gear 14 all are equipped with a plurality of, drive assembly 10 is connected with a plurality of first gears 14 transmission simultaneously, a plurality of first double-screw bolts 12 keep away from the one end of connecting plate 9 and be fixed with first limiting plate 15.
Meanwhile, as shown in fig. 2 and 4, in order to facilitate the control of the rotation of the plurality of first thread cylinders 13, the transmission assembly 10 comprises a slewing bearing 16, an annular gear 17, a second gear 18, a first transmission shaft 19 and a driving piece 20, the slewing bearing 16 is fixed on the annular mounting plate 5, the annular gear 17 is rotationally connected to the outer side of the slewing bearing 16, the plurality of first gears 14 are respectively meshed with the annular gear 17 in an annular array, the second gear 18 is meshed with the annular gear 17, both ends of the first transmission shaft 19 are fixedly provided with the second gears 18, the outer side of the first transmission shaft 19 is rotationally connected with a first limiting seat 21, the first limiting seat 21 is fixedly connected with the top of the connecting seat 4, the driving piece 20 is fixedly installed on the outer wall of the main shaft unit casing 2 and is in transmission connection with the first transmission shaft 19, a second limiting seat 22 is also fixed at the symmetrical position of the top of the connecting seat 4 and the first limiting seat 21, a second transmission shaft 23 is rotationally connected in the second limiting seat 22 through a bearing, and the left and right sides of the first transmission shaft 19 and the second transmission shaft 23 are respectively provided with a synchronous mechanism 24 for generating linkage with the fixing assembly 11.
In addition, as shown in fig. 10, in order to facilitate the power supply of the transmission assembly 10, the driving member 20 includes a driving motor 25, a U-shaped frame 26, a third gear 27 and a fourth gear 28, wherein the driving motor 25 is fixed on the outer wall of the spindle unit housing 2 through the U-shaped frame 26, the third gear 27 is fixedly sleeved on the output end of the driving motor 25, and the fourth gear 28 is fixedly sleeved on the outer side of the first transmission shaft 19 and is in meshed connection with the third gear 27.
Specific embodiments: when maintaining the inside bearing of the electric spindle structure of the existing mechanical arm 1, the driving motor 25 is started to work, the driving motor 25 drives the third gear 27 to rotate, the third gear 27 drives the fourth gear 28 to rotate, the fourth gear 28 drives the first transmission shaft 19 to rotate, the first transmission shaft 19 drives the second gears 18 at two ends to simultaneously rotate, simultaneously drives the two inner gear rings 17 to rotate, the inner gear rings 17 rotate and then drive the plurality of first gears 14 to simultaneously rotate, the plurality of first gears 14 drive the plurality of first thread cylinders 13 to rotate, the first thread cylinders 13 rotate and drive the first studs 12 to move, the first studs 12 move and move out of the limiting blocks 8 fixed by the connecting plates 9 from the limiting holes 7, at the moment, the limiting blocks 8 on the end covers 3 at two sides can simultaneously move, so that the fixing effect on the end covers 3 at two ends of the spindle unit housing 2 is simultaneously relieved, the end covers 3 at two ends can be simultaneously disassembled, convenience is brought to the disassembly process of the end covers 3, workers do not need to use disassembly tools by bare hands to disassemble, and labor intensity of the workers is reduced.
Example 2: as shown in fig. 5-6, this embodiment further illustrates example 1, the fixing component 11 in the illustration includes a fixing seat 29, a second stud 30, a second threaded cylinder 31 and a columnar locking block 32, the fixing seat 29 is fixed at the top of the mechanical arm 1, a groove adapted to the bottom of the connection seat 4 is formed at the top of the fixing seat 29, the connection seat 4 is movably disposed in the groove, two locking grooves 33 are symmetrically disposed on the left and right sides of the connection seat 4, through holes communicated with the grooves are formed on the left and right sides of the fixing seat 29 and at positions coaxial with the locking grooves 33, the second threaded cylinder 31 is rotatably connected in the through holes through bearings, one end of the second stud 30 located in the through holes is fixed with a columnar locking block 32, the columnar locking block 32 is adapted to the locking groove 33, one end of the second stud 30 located outside is fixed with a second limiting plate 34, the second threaded cylinder 31 is in threaded connection with the second stud 30, the output end of the synchronization mechanism 24 is in transmission connection with the second threaded cylinder 31, and the connection seat 4 and the mechanical arm 1 can be further locked by the fixing component 11.
As shown in fig. 2 and 7, in order to enable the limiting assembly 6 and the fixing assembly 11 to form linkage, the synchronizing mechanism 24 includes a first belt pulley 35, a first belt 36, a second belt pulley 37, a third belt pulley 38, a second belt 39, a fourth belt pulley 40 and a third transmission shaft 41, two symmetrically distributed first belt pulleys 35 are fixedly sleeved on the outer sides of the first transmission shaft 19 and the second transmission shaft 23, the first belt pulley 35 is connected with the second belt pulley 37 through the first belt 36 in a transmission manner, the second belt pulley 37 and the third belt pulley 38 are fixedly sleeved on the outer side of the third transmission shaft 41, a U-shaped seat 42 is rotatably connected on the outer side of the third transmission shaft 41 through a bearing, one end of the U-shaped seat 42 is fixedly connected with the outer wall of the connecting seat 4, the third belt pulley 38 is in transmission connection with the fourth belt pulley 40 through the second belt 39, a linkage piece 43 is fixedly sleeved on the outer side of the second screw cylinder 31 between the first transmission shaft 19 and the second transmission shaft 23, and the electric spindle can be integrally detached from the mechanical arm 1 through the synchronizing mechanism 24.
In addition, as shown in fig. 7, in order to facilitate the transmission of the power transmitted to the first transmission shaft 19 to the second transmission shaft 23, the linkage 43 includes a fifth pulley 44, a third belt 45 and a sixth pulley 46, the fifth pulley 44 is fixedly sleeved on the outer side of the first transmission shaft 19, the sixth pulley 46 is fixedly sleeved on the outer side of the second transmission shaft 23, and the fifth pulley 44 and the sixth pulley 46 are in transmission connection through the third belt 45.
Specific embodiments: when the connecting seat 4 is disassembled, the driving motor 25 is started to work, the driving motor 25 drives the third gear 27 to rotate, the third gear 27 drives the fourth gear 28 to rotate, the fourth gear 28 drives the first transmission shaft 19 to rotate, the first transmission shaft 19 drives the second transmission shaft 23 to rotate through the transmission action among the fifth belt pulley 44, the third belt 45 and the sixth belt pulley 46, the first transmission shaft 19 and the second transmission shaft 23 rotate together to drive the four first belt pulleys 35 to rotate, the four first belt pulleys 35 drive the two third transmission shafts 41 and the four second threaded cylinders 31 to rotate through the transmission action among the first belt pulley 36, the second belt pulley 37, the third belt pulley 38, the second belt 39 and the fourth belt pulley 40, and the four second threaded cylinders 31 drive the four second studs 30 to move together, so that the four columnar locking blocks 32 between the connecting seat 4 and the fixing seat 29 are driven to be simultaneously pulled out from the locking grooves 33, and the effect of releasing the limiting effect on the fixing seat 29 is achieved.
It should be noted that: in order to ensure that the structural movement is more reasonable, the spiral directions of the first studs 12 distributed on the left side and the spiral directions of the first studs 12 distributed on the right side are opposite, and in addition, the spiral directions of the second studs 30 distributed on the left side and the spiral directions of the second studs 30 distributed on the right side are opposite.
Example 3: as shown in fig. 8 and 9, this embodiment further describes example 1, one end of the limiting block 8 far away from the connecting plate 9 in the illustration is fixed with a first magnetic block 47, the inside of the limiting hole 7 is fixed with a second magnetic block 48 matched with the first magnetic block 47, and the limiting effect on the end cover 3 is improved because the two magnetic blocks attract each other so that the limiting block 8 does not shake in the limiting hole 7.
In this embodiment, after the stopper 8 enters the limiting hole 7, the stopper 8 is attracted by the first magnetic block 47 and the second magnetic block 48, so that the stopper 8 is more firmly fixed in the limiting hole 7, and in addition, when the end cover 3 is moved out, the first stud 12 moves together with the end cover 3, so that after moving to a proper distance, a user can conveniently take down the end cover 3 by bare hands, and the problem that the end cover 3 is difficult to take down due to the existence of the connecting plate 9 is avoided.
In this scheme, the preferred Y80M1-2 model of driving motor 25, the power supply interface of motor passes through the switch and connects power supply system, and motor operation circuit is conventional motor positive reverse rotation control procedure, and the circuit operation is current conventional circuit, and circuit and the control that involve in this scheme are prior art, do not carry out too much in this text.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an electricity main shaft structure of numerical control machining center, includes arm (1), main shaft unit casing (2) and two end covers (3), two end covers (3) are established the both ends of main shaft unit casing (2), the outside of main shaft unit casing (2) is fixed with connecting seat (4), its characterized in that: annular mounting plates (5) are fixed at two ends of the main shaft unit shell (2), a plurality of groups of limiting assemblies (6) used for controlling the end covers (3) and the annular mounting plates (5) to be connected are mounted on the annular mounting plates (5), a plurality of limiting holes (7) are formed in one side of each end cover (3), limiting blocks (8) matched with the limiting holes (7) are inserted in the limiting holes, a connecting plate (9) is fixed at one end, far away from each limiting hole (7), of each limiting block (8), the connecting plate (9) is fixedly connected with the output end of each limiting assembly (6), a plurality of groups of transmission assemblies (10) used for controlling the corresponding limiting assemblies (6) to move simultaneously are mounted on one side, far away from each end cover (3), of each mechanical arm (1), and fixing assemblies (11) used for fixing the connecting seat (4) and the mechanical arm (1) are arranged on two sides of the top of each mechanical arm (1).
The limiting assembly (6) comprises a first stud (12), a first threaded cylinder (13) and a first gear (14), one end of the first stud (12) is fixedly connected with the connecting plate (9), a through hole is formed in the annular mounting plate (5), the outer side of the first threaded cylinder (13) is rotationally connected in the through hole through a bearing, the first stud (12) is in threaded connection with the first threaded cylinder (13), the first gear (14) is fixedly sleeved on the outer side of the first threaded cylinder (13), a plurality of first studs (12), the first threaded cylinders (13) and the first gears (14) are arranged, the transmission assembly (10) is simultaneously in transmission connection with a plurality of first gears (14), and one end of the first stud (12) far away from the connecting plate (9) is fixedly provided with a first limiting plate (15);
the transmission assembly (10) comprises a slewing bearing (16), an annular gear (17), a second gear (18), a first transmission shaft (19) and a driving piece (20), wherein the slewing bearing (16) is fixed on the annular mounting plate (5), the annular gear (17) is rotationally connected to the outer side of the slewing bearing (16), a plurality of first gears (14) are respectively meshed with the annular gear (17) in an annular array, the second gear (18) is meshed with the annular gear (17), the two ends of the first transmission shaft (19) are respectively fixed with a second gear (18), the outer side of the first transmission shaft (19) is rotationally connected with a first limit seat (21), the first limit seat (21) is fixedly connected with the top of the connecting seat (4), the driving piece (20) is fixedly mounted on the outer wall of the main shaft unit shell (2) and the output end of the driving piece is in transmission connection with the first transmission shaft (19), the top of the connecting seat (4) is symmetrically connected with the first limit seat (21) at a second limit seat (22) through a second limit seat (22), the left side and the right side of the first transmission shaft (19) and the second transmission shaft (23) are respectively provided with a synchronous mechanism (24) which is used for generating linkage with the fixed assembly (11).
2. The motorized spindle structure of a numerically controlled machining center as set forth in claim 1, wherein: the driving piece (20) comprises a driving motor (25), a U-shaped frame (26), a third gear (27) and a fourth gear (28), wherein the driving motor (25) is fixed on the outer wall of the main shaft unit shell (2) through the U-shaped frame (26), the third gear (27) is fixedly sleeved at the output end of the driving motor (25), and the fourth gear (28) is fixedly sleeved at the outer side of the first transmission shaft (19) and is meshed and connected with the third gear (27).
3. The motorized spindle structure of a numerically controlled machining center as set forth in claim 1, wherein: the utility model provides a synchronous output screw bolt of fixed subassembly (11), fixed subassembly (11) include fixing base (29), second double-screw bolt (30), second screw thread section of thick bamboo (31) and column latch segment (32), fixing base (29) are fixed the top of arm (1), the top of fixing base (29) seted up with the recess of connecting seat (4) bottom looks adaptation, connecting seat (4) movably establish in the recess, the left and right sides of connecting seat (4) all symmetry is equipped with two locking grooves (33), the left and right sides of fixing base (29) and with the coaxial position department of locking groove (33) seted up with the through-hole that is linked together of recess, second screw thread section of thick bamboo (31) are connected in the through-hole through the bearing rotation, second double-screw bolt (30) are located one end in the through-hole is fixed with column latch segment (32), column latch segment (32) with locking groove (33) looks adaptation, one end that second double-screw bolt (30) are located outside is fixed with second limiting plate (34), second screw thread section of thick bamboo (31) and second screw thread section of thick bamboo (30) are connected with screw thread section of thick bamboo (31).
4. An electric spindle structure of a numerically controlled machining center according to claim 3, wherein: the synchronous mechanism (24) comprises a first belt wheel (35), a first belt (36), a second belt wheel (37), a third belt wheel (38), a second belt (39), a fourth belt wheel (40) and a third transmission shaft (41), wherein the first belt wheel (35) which is symmetrically distributed is fixedly sleeved on the outer side of the first transmission shaft (19) and the outer side of the second transmission shaft (23), the second belt wheel (37) is connected with the first belt wheel (35) through the first belt wheel (36) in a transmission manner, the second belt wheel (37) and the third belt wheel (38) are fixedly sleeved on the outer side of the third transmission shaft (41), a U-shaped seat (42) is rotatably connected on the outer side of the third transmission shaft (41) through a bearing, one end of the U-shaped seat (42) is fixedly connected with the outer wall of the connecting seat (4), the third belt wheel (38) is fixedly sleeved on the outer side of the second transmission shaft (31) through the second belt wheel (39) and the fourth belt wheel (40), and the fourth belt wheel (40) is fixedly sleeved on the outer side of the second transmission shaft (31), and the first transmission shaft (23) is further provided with a linkage piece (43).
5. The motorized spindle structure of a numerically controlled machining center as set forth in claim 4, wherein: the linkage piece (43) comprises a fifth belt wheel (44), a third belt (45) and a sixth belt wheel (46), wherein the fifth belt wheel (44) is fixedly sleeved on the outer side of the first transmission shaft (19), the sixth belt wheel (46) is fixedly sleeved on the outer side of the second transmission shaft (23), and the fifth belt wheel (44) and the sixth belt wheel (46) are in transmission connection through the third belt (45).
6. The motorized spindle structure of a numerically controlled machining center as set forth in claim 1, wherein: one end of the limiting block (8) far away from the connecting plate (9) is fixedly provided with a first magnetic block (47), and a second magnetic block (48) matched with the first magnetic block (47) for use is fixed in the limiting hole (7).
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| CN202310537007.6A CN116372201B (en) | 2023-05-13 | 2023-05-13 | Motorized spindle structure of numerical control machining center |
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| CN202310537007.6A CN116372201B (en) | 2023-05-13 | 2023-05-13 | Motorized spindle structure of numerical control machining center |
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| CN116372201B true CN116372201B (en) | 2023-11-03 |
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| CN117161421B (en) * | 2023-08-04 | 2024-03-08 | 常州顺唯尔材料科技有限公司 | Electric spindle for plate edge milling |
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| CN116372201A (en) | 2023-07-04 |
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