CN116748904B - Numerical control multi-surface machining equipment for copper-aluminum composite pole of power battery - Google Patents
Numerical control multi-surface machining equipment for copper-aluminum composite pole of power battery Download PDFInfo
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- CN116748904B CN116748904B CN202311040005.2A CN202311040005A CN116748904B CN 116748904 B CN116748904 B CN 116748904B CN 202311040005 A CN202311040005 A CN 202311040005A CN 116748904 B CN116748904 B CN 116748904B
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- power battery
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- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000002131 composite material Substances 0.000 title claims abstract description 30
- 238000003754 machining Methods 0.000 title claims abstract description 30
- 238000007514 turning Methods 0.000 claims abstract description 77
- 239000010949 copper Substances 0.000 claims abstract description 54
- 229910052802 copper Inorganic materials 0.000 claims abstract description 54
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 53
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 53
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 52
- 230000005540 biological transmission Effects 0.000 claims abstract description 50
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 30
- 230000001360 synchronised effect Effects 0.000 claims abstract description 26
- 230000033001 locomotion Effects 0.000 claims abstract description 14
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 3
- 230000006698 induction Effects 0.000 claims description 15
- 239000004020 conductor Substances 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 9
- 238000003466 welding Methods 0.000 description 28
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 231100000241 scar Toxicity 0.000 description 6
- 239000004411 aluminium Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 208000032544 Cicatrix Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000037387 scars Effects 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/06—Metal-working plant comprising a number of associated machines or apparatus
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses numerical control multi-surface machining equipment for a copper-aluminum composite pole of a power battery, and relates to the technical field of numerical control machining; in order to solve the problem of turning precision; the automatic cutting machine comprises a base, wherein two groups of clamping rotating parts which are used for respectively carrying out friction fixing installation on a copper column and an aluminum column are matched with the top of the base through transmission of a centering type linear bidirectional driving part, and a turning tool assembly is connected to the rear top of the base through transmission of a feeding linear driving part. According to the invention, the ball type contact is arranged and is in transmission fit with the turning tool through the synchronous motion assembly, on one hand, the turning tool can be displaced along with displacement of the ball type contact through transmission of the worm-worm wheel and the small speed reducer, so that the characteristics that the ball type contact is attached to the outer walls of the copper column and the aluminum column are combined, and the turning position of the turning tool can be always ensured to be at the maximum outer diameter when the driving precision of the feeding amount linear driving part is low, and the turning precision is ensured.
Description
Technical Field
The invention relates to the technical field of numerical control machining, in particular to numerical control multi-surface machining equipment for a copper-aluminum composite pole of a power battery.
Background
The power battery copper-aluminum composite pole is formed by connecting a cylindrical aluminum block and a cylindrical copper block through a friction welding process, removing weld scars through numerical control turning after connection, and then grooving, punching and the like.
In the weld scar turning link, the diameter of a welded part to be turned is consistent with the diameter of an original copper-aluminum cylinder, when a traditional numerical control lathe is used for turning, the turning size is controlled through the feeding amount of the turning tool, the feeding amount of the turning tool is controlled through a screw rod-sliding block used for linear driving, the rotation number of turns of a servo motor is controlled through electric control, and the control is realized by combining the screw pitch.
For example, as a result of the search, chinese patent publication No. CN113523311B discloses a martensitic stainless steel turning device and a turning process thereof, comprising a headstock, a three-jaw chuck, a bed, a first ball screw moving pair, a tool rest, a tailstock, a coolant supply system and a controller; and a second ball screw moving pair and an auxiliary power box are arranged on the other side of the lathe bed.
The above patent suffers from the following disadvantages: the turning size is controlled by the transmission of the ball screw and the mode of controlling the rotation number of the servo motor, and the electric control mode is easy to be influenced by transmission gaps, electric control precision, a control algorithm and the like, so that the turning precision is influenced.
Therefore, the invention provides numerical control multi-surface machining equipment for the copper-aluminum composite pole of the power battery.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides numerical control multi-surface machining equipment for a copper-aluminum composite pole of a power battery.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the numerical control multi-surface machining equipment for the copper-aluminum composite pole of the power battery comprises a base, wherein the top of the base is matched with two groups of clamping rotating parts which are used for respectively carrying out friction fixed installation on the copper pole and the aluminum pole through a centering type linear bidirectional driving part in a transmission manner, the top of the rear side of the base is connected with a turning tool assembly through a feeding type linear driving part in a transmission manner,
the turning tool assembly comprises a fixed disc, ball type contact terminals arranged at two ends of one side of the fixed disc and a turning tool arranged in the middle of one side of the fixed disc, and the ball type contact terminals are in transmission fit with the turning tool through a synchronous motion assembly;
the synchronous motion assembly comprises a U-shaped frame and a sliding column which are connected to the inner wall of a fixed disc in a sliding way, two ball contacts are respectively fixed at two end parts of the U-shaped frame, a turning tool is fixed at the end part of the sliding column, the U-shaped frame is meshed with a first gear through teeth arranged at the bottom of the turning tool, the inner wall of the first gear is connected with a worm in a rotating way and connected to the inner part of the fixed disc through a key, one side of the worm is meshed with a worm wheel, the worm wheel is connected with a main shaft through a small speed reducer, the end part of the main shaft is connected with a second gear through a key, and the sliding column is meshed with the side wall of the second gear through teeth arranged on the side wall of the sliding column;
the transmission ratio of the worm and the worm wheel is equal to that of the main shaft and the worm wheel.
Preferably: the clamping rotating part comprises a clamping head used for clamping and a supporting seat rotationally connected to the outer side of the clamping head, the supporting seat is slidably connected to the top of the base through a linear sliding rail, a second motor is fixedly arranged on the side wall of the supporting seat, and an output shaft of the second motor is matched with the outer wall of the clamping head through a synchronous belt in a transmission mode.
Further: the centering type linear bidirectional driving part comprises a bidirectional screw rod and a first motor, the first motor is fixedly arranged on the side wall of the base, the bidirectional screw rod is rotationally connected to the inner side wall of the base, the bidirectional screw rod is connected to the inner wall of the supporting seat through a pressure induction type joint in a transmission mode, and an output shaft of the first motor is connected to the end portion of the bidirectional screw rod through a coupling.
Based on the scheme: the clamping head comprises a clamping seat and a plurality of clamping arms rotatably connected to the end face of the clamping seat, the inner wall of the clamping seat is slidably connected with a sliding head, the sliding head is movably connected to the clamping arms respectively through a plurality of connecting rods, and one spring is fixedly arranged on the opposite side of the sliding head and the limiting sliding block.
Among the foregoing, the preferred one is: permanent magnet is fixed on the end face of the slider, and an electromagnet is fixedly arranged on the inner side wall of the clamping seat, which is opposite to the permanent magnet.
As a further scheme of the invention: the magnetic poles of the electromagnet and the opposite side of the permanent magnet are opposite.
Simultaneously, the pressure sensing type connector comprises a transmission block and a pressure sensing chip, wherein the transmission block is in sliding connection with the inner wall of the supporting seat, the pressure sensing chip is fixedly arranged on the outer side end face of the transmission block, the sensing end of the pressure sensing chip is in contact fit with the inner wall of the supporting seat, and the transmission block is connected with the outer wall of the bidirectional screw rod through threads.
As a preferred embodiment of the present invention: the numerical control multi-surface machining equipment for the copper-aluminum composite pole of the power battery further comprises a synchronous induction assembly arranged on the linear slide rail, wherein the synchronous induction assembly comprises a limit slide block which is connected to the outer wall of the linear slide rail in a sliding mode and a locking stud which is connected to the limit slide block through threads.
Meanwhile, the inner wall of the limit sliding block is fixedly embedded with a U-shaped conductor, and the inner wall of the supporting seat is fixedly embedded with an elastic electrode A and an elastic electrode B which are matched with the U-shaped conductor.
As a more preferable scheme of the invention: the elastic electrode A and the elastic electrode B are connected in series in a power supply circuit of the electromagnet through an electric slip ring.
The beneficial effects of the invention are as follows:
1. according to the invention, the ball type contact is in transmission fit with the turning tool through the synchronous motion assembly, on one hand, the turning tool can be displaced along with displacement of the ball type contact through transmission of the worm-worm wheel and the small speed reducer, so that the turning position of the turning tool can be always ensured to be at the maximum outer diameter when the driving precision of the feeding amount linear driving part is low by combining the characteristics that the ball type contact is attached to the outer walls of the copper column and the aluminum column, and the turning precision is ensured, and on the other hand, the position of the turning tool can be ensured to be changed through limit of the ball type contact by combining the reverse locking characteristic of the worm and the worm wheel, and turning reaction force movement of the turning tool can be prevented, so that the turning precision is further increased.
2. According to the invention, the copper column and the aluminum column can be clamped and driven to rotate by the two groups of clamping rotating parts, so that rotary welding is realized, on the other hand, friction welding and turning processes are combined and synchronously carried out by matching with turning tool components, the processing steps are simplified, and the efficiency is improved.
3. According to the invention, by arranging the electromagnet and the permanent magnet and combining the transmission block and the pressure sensing chip, after friction welding and turning weld scar are finished, the electromagnet and the permanent magnet can be utilized to provide clamping force, so that tensile force test is carried out on the strength after welding according to the reading of the pressure sensing chip and the displacement condition of other parts when the supporting seat moves, the whole manufacturing process is further integrated, the process steps are simplified, and the efficiency is improved.
4. According to the invention, in a normal state, the sliding heads are moved outwards by the elasticity of the springs, so that the plurality of clamping arms are opened through the connecting rods, the copper columns and the aluminum columns are respectively arranged at the end parts of the two sliding heads during clamping, when the two clamping seats are mutually close until the copper columns are contacted with the aluminum columns, the sliding heads continue to relatively displace, and at the moment, the sliding heads slide towards the inner sides of the clamping seats, so that the clamping arms are pulled to rotate inwards through the connecting rods, and the side walls of the copper columns and the aluminum columns are clamped, so that the clamping center is determined.
5. According to the invention, by arranging the synchronous induction component, the synchronous tightness of the whole working procedure is ensured, and the automatic control effect is realized by combining the characteristics of the support seat and the position characteristic of the limit sliding block and the characteristics of the displacement of the support seat during tensile force test and matching whether the elastic electrode A, the elastic electrode B and the U-shaped conductor are contacted or not.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a numerical control multi-surface machining device for a copper-aluminum composite pole of a power battery;
fig. 2 is a schematic diagram of a turning tool assembly of a numerical control multi-surface machining device for a copper-aluminum composite pole of a power battery;
FIG. 3 is a schematic diagram of a synchronous motion assembly of a numerical control multi-surface machining device for a copper-aluminum composite pole of a power battery;
fig. 4 is a schematic diagram of a centering type linear bidirectional driving part of a numerical control multi-surface machining device for a copper-aluminum composite pole of a power battery;
fig. 5 is a schematic diagram of a cross-sectional structure of a clamping head of a numerical control multi-surface machining device for a copper-aluminum composite pole of a power battery;
FIG. 6 is a schematic diagram of a cross-sectional structure of a pressure-sensitive joint of a numerical control multi-surface machining device for a copper-aluminum composite pole of a power battery;
FIG. 7 is a schematic diagram of a cross-sectional structure of a synchronous induction assembly of a numerical control multi-surface machining device for a copper-aluminum composite pole of a power battery;
fig. 8 is a schematic circuit structure diagram of a numerical control multi-surface machining device for a copper-aluminum composite pole of a power battery.
In the figure: the device comprises a 1-base, a 2-clamping rotating part, a 3-centering type linear bidirectional driving part, a 4-copper column, a 5-feeding type linear driving part, a 6-turning tool assembly, a 7-aluminum column, an 8-synchronous induction assembly, a 9-fixed disc, a 10-ball type contact, an 11-turning tool, a 12-synchronous motion assembly, a 13-U-shaped frame, a 14-gear I, a 15-worm, a 16-small speed reducer, a 17-spindle, a 18-worm wheel, a 19-gear II, a 20-sliding column, a 21-linear sliding rail, a 22-supporting seat, a 23-pressure induction joint, a 24-bidirectional screw rod, a 25-motor I, a 26-synchronous belt, a 27-motor II, a 28-clamping head, a 29-clamping seat, a 30-electromagnet, a 31-permanent magnet, a 32-connecting rod, a 33-clamping arm, a 34-sliding head, a 35-spring, a 36-driving block, a 37-pressure sensing chip, a 38-locking stud, a 39-limiting slider, a 40-U-shaped conductor and a 41-elastic electrode A and a 42-elastic electrode B.
Detailed Description
The technical scheme of the patent is further described in detail below with reference to the specific embodiments.
Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present patent and are not to be construed as limiting the present patent.
Example 1:
the utility model provides a power battery copper aluminium composite pole numerical control multiaspect processing equipment, shown in fig. 1-8, includes base 1, the top of base 1 is through the cooperation of centering straight line bi-directional drive portion 3 transmission has two sets of centre gripping rotating part 2 that carry out friction welding respectively copper post 4 and aluminium post 7, just the rear side top of base 1 is connected with lathe tool subassembly 6 through the transmission of feed linear drive portion 5, in this embodiment, does not do not limit to lathe tool subassembly 6's specific type, can be traditional lead screw-slider combination, can also be mechanical combination such as pneumatic, hydraulic pressure, electric telescopic handle, and it only need can realize driving lathe tool subassembly 6 rectilinear motion, and can approximate control to displacement.
The turning tool assembly 6 comprises a fixed disc 9, ball type contact points 10 arranged at two ends of one side of the fixed disc 9 and a turning tool 11 arranged in the middle of one side of the fixed disc 9, wherein the ball type contact points 10 and the turning tool 11 are in transmission fit through a synchronous motion assembly 12.
The synchronous motion assembly 12 comprises a U-shaped frame 13 and a sliding column 20 which are connected to the inner wall of the fixed disc 9 in a sliding mode, two ball contacts 10 are respectively fixed to two end portions of the U-shaped frame 13, the turning tool 11 is fixed to the end portion of the sliding column 20, the U-shaped frame 13 is meshed with a first gear 14 through teeth arranged at the bottom of the U-shaped frame, the inner wall of the first gear 14 is connected with a worm 15 which is connected to the inner portion of the fixed disc 9 in a rotating mode through a key, one side of the worm 15 is meshed with a worm wheel 18, the worm wheel 18 is connected with a main shaft 17 through a small speed reducer 16, the end portion of the main shaft 17 is connected with a second gear 19 through a key, and the sliding column 20 is meshed with the side wall of the second gear 19 through teeth arranged on the side wall of the sliding column.
The gear ratio of the worm 15 to the worm wheel 18 is equal to the gear ratio of the spindle 17 to the worm wheel 18.
In this embodiment, the specific type of the small-sized reducer 16 is not limited, and it may be any reducer in the prior art, in order to fit the characteristic of large transmission ratio between the worm 15 and the worm wheel 18, the small-sized reducer 16 is a planetary gear reducer, the planetary gear reducer is fixed in the fixed disc 9, the input shaft of the planetary gear carrier is fixedly connected with the worm wheel 18, and the output shaft is fixedly connected with the main shaft 17.
When the device is used, the copper column 4 and the aluminum column 7 are respectively arranged on two groups of clamping rotating parts 2 by using manual or mechanical hands, then the clamping rotating parts 2 drive the copper column 4 and the aluminum column 7 to be attached and rotate in opposite directions, friction welding is carried out, the feeding amount linear driving part 5 drives the feeding amount linear driving part 6 to be close to the copper column 4 and the aluminum column 7 while welding until the ball contact 10 contacts the outer walls of the copper column 4 and the aluminum column 7, at the moment, the turning tool 11 is also positioned at the maximum outer diameter of the copper column 4 and the aluminum column 7, along with the friction welding of the copper column 4 and the aluminum column 7, the seam is curled outwards, the turning tool 11 can be turned when the seam is not cooled, namely, after the ball contact 10 contacts the copper column 4 and the aluminum column 7 with the turning tool 11, the feeding amount of the turning tool assembly 6 is continuously increased, at the moment, the ball contact 10 is limited by the side walls of the copper column 4 and the aluminum column 7, the U-shaped frame 13 is contracted inwards towards the fixed disc 9, the gear I14 drives the worm 15 to rotate, the worm wheel 18 is driven to rotate, the small speed reducer 16 drives the main shaft 17 to rotate, the sliding column 20 is driven to contract through the gear II 19, and the transmission ratio of the worm 15 to the worm wheel 18 is equal to that of the main shaft 17 to the worm wheel 18, so that the sliding column 20 and the U-shaped frame 13 move at the same speed, namely the turning tool 11 is always positioned at the outer diameters of the copper column 4 and the aluminum column 7, and due to the fact that the turning tool 11 is subjected to turning reaction force during turning, the position of the turning tool 11 can be changed through limiting of the ball contact 10 and the turning reaction force movement of the turning tool 11 can be prevented due to the fact that the reverse locking characteristics of the worm 15 and the worm wheel 18 are combined.
This device, at first, through setting up two sets of centre gripping rotating part 2, it can be to copper post 4 and aluminium post 7 centre gripping and drive rotation to realize spin welding, on the other hand cooperates turning to the turning of turning tool subassembly 6 to the weld, can make friction welding and turning technology combine, go on in step, simplify the processing step, raise the efficiency, in addition, this kind of setting can make the weld of turning tool subassembly 6 turning be the high temperature weld, its hardness angle, thereby load to the cutter is lower.
In addition, this device is through setting up ball contact 10, it passes through synchronous motion subassembly 12 and lathe tool 11 transmission cooperation, on the one hand through worm 15-worm wheel 18 and the transmission of small-size reduction gear 16, can make lathe tool 11 can be along with the displacement of ball contact 10 and displacement, thereby combine the characteristics of ball contact 10 laminating copper post 4, aluminium post 7 outer wall, can make promptly when the driving precision of feed linear drive portion 5 also can guarantee the turning position of lathe tool 11 and be in the biggest external diameter department all the time, guarantee the precision of turning, on the other hand, combine worm 15 and worm wheel 18's reverse locking characteristics, can guarantee to change the position of lathe tool 11 through the spacing of ball contact 10, can prevent again that lathe tool 11 from receiving turning reaction force and remove, further increased the turning precision.
To solve clamping and rotation problems; as shown in fig. 4, the clamping rotary part 2 includes a clamping head 28 for clamping and a supporting seat 22 rotatably connected to the outer side of the clamping head 28, the supporting seat 22 is slidably connected to the top of the base 1 through a linear sliding rail 21, a second motor 27 is fixed to a side wall of the supporting seat 22 through a bolt, and an output shaft of the second motor 27 is in transmission fit with an outer wall of the clamping head 28 through a synchronous belt 26.
The centering type linear bidirectional driving part 3 comprises a bidirectional screw rod 24 and a first motor 25, the first motor 25 is fixed on the side wall of the base 1 through bolts, the bidirectional screw rod 24 is rotatably connected to the inner side wall of the base 1, the bidirectional screw rod 24 is in transmission connection with the inner wall of the supporting seat 22 through a pressure induction type joint 23, and an output shaft of the first motor 25 is connected to the end part of the bidirectional screw rod 24 through a coupling.
The clamping head 28 can clamp the copper column 4 and the aluminum column 7, and when the first motor 25 is started, the first motor can drive the bidirectional screw rod 24 to rotate, so that the pressure induction type connector 23 drives the two groups of supporting seats 22 to be close to each other, until the copper column 4 contacts with the aluminum column 7, the second motor 27 is started to rotate reversely, and the second motor 27 drives the clamping head 28 to rotate through the synchronous belt 26, so that the copper column 4 and the aluminum column 7 rotate reversely, and friction welding is realized.
In order to solve the clamping problem; as shown in fig. 5, the clamping head 28 includes a clamping seat 29 and a plurality of clamping arms 33 rotatably connected to an end surface of the clamping seat 29, a slider 34 is slidably connected to an inner wall of the clamping seat 29, the slider 34 is movably connected to the plurality of clamping arms 33 through a plurality of connecting rods 32, and the same spring 35 is welded to an opposite side of the slider 34 from the limit slider 39.
In a normal state, the slider 34 is moved outwards by the elastic force of the spring 35, so that the plurality of clamp arms 33 are opened by the connecting rod 32, during clamping, the copper column 4 and the aluminum column 7 are respectively arranged at the end parts of the two sliders 34, when the two clamp seats 29 are mutually close until the copper column 4 and the aluminum column 7 are contacted, the two clamp seats 29 continue to relatively displace, at the moment, the sliders 34 slide towards the inner sides of the clamp seats 29, and the clamp arms 33 are pulled to rotate inwards by the connecting rod 32, so that the side walls of the copper column 4 and the aluminum column 7 are clamped.
In order to solve the tensile test problem; as shown in fig. 5 and 6, a permanent magnet 31 is fixed to the end surface of the slider 34, an electromagnet 30 is fixed to the inner side wall of the holder 29 facing the permanent magnet 31 by a bolt, and the magnetic poles of the electromagnet 30 are opposite to those of the opposite side of the permanent magnet 31.
The pressure sensing joint 23 comprises a transmission block 36 and a pressure sensing chip 37, the transmission block 36 is slidably connected to the inner wall of the support seat 22, the pressure sensing chip 37 is fixed to the outer side end face of the transmission block 36 through bolts, the sensing end of the pressure sensing chip 37 is in contact fit with the inner wall of the support seat 22, and the transmission block 36 is connected to the outer wall of the bidirectional screw rod 24 through threads.
After the welding and turning are finished, the assembly of the copper column 4 and the aluminum column 7 is cooled, then the electromagnet 30 is electrified, the sliding head 34 is adsorbed by suction generated between the electromagnet and the permanent magnet 31, the clamping arm 33 is pulled by the connecting rod 32 to clamp the assembly of the copper column 4 and the aluminum column 7, the maximum clamping force F1 of the clamping arm 33 on the assembly of the copper column 4 and the aluminum column 7 can be controlled by controlling the electrified current intensity of the electromagnet 30, then the motor one 25 is reversely started, so that the clamping seats 29 are separated from each other, and the transmission block 36 is in sliding connection with the supporting seat 22, and the bidirectional screw 24 and the supporting seat 22 are indirectly transmitted through the transmission block 36, so that the moving driving force of the bidirectional screw 24 on the supporting seat 22 is equal to the reading F2 of the pressure sensing chip 37, the F1 is set to be the required welding bonding force according to the required welding bonding force, when the supporting seat 22 is moved, the copper column 4 and the aluminum column 7 are cracked, if the supporting seat 22 moves, the welding of the assembly of the copper column 4 and the aluminum column 7 is failed, and the sliding body 33 is qualified when the supporting seat 22 moves.
The device combines the transmission block 36 and the pressure sensing chip 37 through arranging the electromagnet 30 and the permanent magnet 31, so that after friction welding and turning weld scar are finished, the electromagnet 30 and the permanent magnet 31 can be utilized to provide clamping force, and tension test is carried out on the strength after welding according to the reading of the pressure sensing chip 37 and the displacement condition of other parts when the supporting seat 22 moves, the whole manufacturing process is further integrated, the process steps are simplified, and the efficiency is improved.
When the device is used, firstly, a manual or mechanical arm is used for placing the copper column 4 and the aluminum column 7 at a processing station, then, a first motor 25 is started, the first motor drives the two supporting seats 22 to be close to each other by driving the bidirectional screw 24 to rotate until the sliding head 34 is attached to the side surfaces of the copper column 4 and the aluminum column 7, the first motor is continuously close to each other until the clamping arm 33 clamps the side surfaces of the copper column 4 and the aluminum column 7, then, a second motor 27 is started to reversely rotate, the second motor 27 drives the clamping head 28 to rotate by the synchronous belt 26, so that the copper column 4 and the aluminum column 7 reversely rotate, friction welding is realized, and meanwhile, the feeding amount linear driving part 5 drives the feeding amount linear driving part 6 to be close to the copper column 4 and the aluminum column 7 until the ball contact 10 is contacted with the outer walls of the copper column 4 and the aluminum column 7, at the moment, the turning tool 11 is also positioned at the maximum outer diameter of the copper column 4 and the aluminum column 7 along with friction welding of the copper column 4 and the aluminum column 7, the weld scar at the joint is curled outwards, the turning tool 11 can turn when the weld scar is not cooled, and the turning tool assembly 6 continues to increase the feeding amount after the ball contact 10 contacts the copper column 4 and the aluminum column 7 with the turning tool 11, at this time, the ball contact 10 is limited by the side walls of the copper column 4 and the aluminum column 7, so that the U-shaped frame 13 contracts inwards towards the fixed disc 9, the first gear 14 drives the worm 15 to rotate, the worm wheel 18 is driven to rotate, the main shaft 17 is driven to rotate by the small speed reducer 16, the second gear 19 drives the slide column 20 to contract, and the transmission ratio of the worm 15 and the worm wheel 18 is equal to the transmission ratio of the main shaft 17 and the worm wheel 18, so that the moving speed of the slide column 20 and the U-shaped frame 13 is the same, namely the turning tool 11 is always positioned at the outer diameters of the copper column 4 and the aluminum column 7, after the welding turning is finished, the workpiece is cooled, then the electromagnet 30 is electrified, the sliding head 34 is adsorbed by the attraction force generated between the electromagnet 30 and the permanent magnet 31, the clamping arm 33 is pulled by the connecting rod 32 to clamp the assembly of the copper column 4 and the aluminum column 7, the maximum clamping force F1 of the assembly of the copper column 4 and the aluminum column 7 can be controlled by controlling the electrified current intensity of the electromagnet 30 through the clamping arm 33, then the motor one 25 is reversely started, so that the clamping seat 29 is mutually deviated, and the transmission block 36 is in sliding connection with the support seat 22, and the bidirectional screw 24 and the support seat 22 are indirectly transmitted through the transmission block 36, so that the moving driving force of the bidirectional screw 24 to the support seat 22 is equal to the reading F2 of the pressure sensing chip 37, the size of F1 is set to be the required welding binding force according to the required welding binding force of the copper column 4 and the aluminum column 7, as the bidirectional screw 24 applies driving to the support seat 22, if the support seat 22 moves, the copper column 4 and the aluminum column 7 are broken, the welding is unqualified, the clamping arm 33 and the assembly of the copper column 4 and the aluminum column 7 slide mutually, and the transmission block 36 are in sliding connection, and the welding of the electromagnet 4 and the tensile force of the copper column 7 are tested.
Example 2:
numerical control multi-surface machining equipment for copper-aluminum composite poles of power batteries is shown in figures 1, 7 and 8, and aims to solve the problem of automatic control; the present example was modified on the basis of example 1 as follows: the numerical control multi-surface machining equipment for the copper-aluminum composite pole of the power battery further comprises a synchronous induction assembly 8 arranged on the linear slide rail 21, wherein the synchronous induction assembly 8 comprises a limit slide block 39 which is connected to the outer wall of the linear slide rail 21 in a sliding mode and a locking stud 38 which is connected to the limit slide block 39 through threads.
The inner wall of the limit slider 39 is fixedly embedded with a U-shaped conductor 40, the inner wall of the support seat 22 is fixedly embedded with an elastic electrode A41 and an elastic electrode B42 which are matched with the U-shaped conductor 40, and the elastic electrode A41 and the elastic electrode B42 are connected in series in a power supply circuit of the electromagnet 30 through an electric slip ring.
When the electric welding device is used, the position of the electric welding device can be changed through sliding of the limit sliding block 39, the limit sliding block 39 and the linear sliding rail 21 are locked through the locking stud 38, so that when the supporting seat 22 moves to a friction welding station, the elastic electrode B42 and the elastic electrode A41 are communicated through the U-shaped conductor 40, the electromagnet 30 is automatically electrified, and when tension is detected, no matter the clamping arm 33 slides relative to the copper column 4, the aluminum column 7 or the copper column 4 and the aluminum column 7 is broken, the supporting seat 22 moves, and therefore the elastic electrode A41 and the elastic electrode B42 are not contacted with the U-shaped conductor 40, a power supply circuit of the electromagnet 30 is disconnected, and clamping is automatically canceled.
The device utilizes the position characteristics of the supporting seat 22 and the limit sliding block 39 by arranging the synchronous induction component 8, combines the characteristics of the displacement of the supporting seat 22 during tensile force test, and is matched with whether the elastic electrode A41, the elastic electrode B42 and the U-shaped conductor 40 are in contact or not to realize the electrifying control of the electromagnet 30, thereby ensuring the synchronous compactness of the whole process and realizing the automatic control effect.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The numerical control multi-surface machining equipment for the power battery copper-aluminum composite pole comprises a base (1), wherein the top of the base (1) is matched with two groups of clamping rotating parts (2) which are used for respectively carrying out friction fixing installation on a copper pole (4) and an aluminum pole (7) through a centering type linear bidirectional driving part (3), the rear top of the base (1) is connected with a turning tool assembly (6) through a feeding type linear driving part (5) in a transmission mode,
the turning tool assembly (6) comprises a fixed disc (9), ball type contacts (10) arranged at two ends of one side of the fixed disc (9) and a turning tool (11) arranged in the middle of one side of the fixed disc (9), and the ball type contacts (10) are in transmission fit with the turning tool (11) through a synchronous motion assembly (12);
the synchronous motion assembly (12) comprises a U-shaped frame (13) and a sliding column (20) which are connected to the inner wall of the fixed disc (9) in a sliding mode, two ball contacts (10) are respectively fixed to two end parts of the U-shaped frame (13), the turning tool (11) is fixed to the end part of the sliding column (20), the U-shaped frame (13) is meshed with a first gear (14) through teeth arranged at the bottom of the turning tool, the inner wall of the first gear (14) is connected with a worm (15) connected to the inner part of the fixed disc (9) in a rotating mode through keys, one side of the worm (15) is meshed with a worm wheel (18), the worm wheel (18) is connected with a main shaft (17) through a small speed reducer (16), the end part of the main shaft (17) is connected with a second gear (19) through keys, and the sliding column (20) is meshed with the side wall of the second gear (19) through teeth arranged on the side wall of the sliding column.
The transmission ratio of the worm (15) to the worm wheel (18) is equal to the transmission ratio of the main shaft (17) to the worm wheel (18).
2. The numerical control multi-surface machining device for the power battery copper-aluminum composite pole is characterized in that the clamping rotating part (2) comprises a clamping head (28) used for clamping and a supporting seat (22) rotatably connected to the outer side of the clamping head (28), the supporting seat (22) is slidably connected to the top of the base (1) through a linear sliding rail (21), a second motor (27) is fixedly arranged on the side wall of the supporting seat (22), and an output shaft of the second motor (27) is in transmission fit with the outer wall of the clamping head (28) through a synchronous belt (26).
3. The numerical control multi-surface machining device for the power battery copper-aluminum composite pole is characterized in that the centering type linear bidirectional driving part (3) comprises a bidirectional screw rod (24) and a first motor (25), the first motor (25) is fixedly arranged on the side wall of the base (1), the bidirectional screw rod (24) is rotationally connected to the inner side wall of the base (1), the bidirectional screw rod (24) is in transmission connection with the inner wall of the supporting seat (22) through a pressure induction type joint (23), and an output shaft of the first motor (25) is connected to the end part of the bidirectional screw rod (24) through a coupling.
4. The numerical control multi-face machining device for the power battery copper-aluminum composite pole is characterized in that the clamping head (28) comprises a clamping seat (29) and a plurality of clamping arms (33) rotatably connected to the end face of the clamping seat (29), a sliding head (34) is slidably connected to the inner wall of the clamping seat (29), the sliding head (34) is movably connected to the plurality of clamping arms (33) through a plurality of connecting rods (32) respectively, and one spring (35) is fixedly installed on the opposite side of the sliding head (34) and the limiting sliding block (39).
5. The numerical control multi-face machining device for the copper-aluminum composite pole of the power battery according to claim 4, wherein the permanent magnet (31) is fixed on the end face of the sliding head (34), and the electromagnet (30) is fixedly arranged on the inner side wall of the clamping seat (29) opposite to the permanent magnet (31).
6. The numerical control multi-face machining equipment for the power battery copper-aluminum composite pole is characterized in that the electromagnet (30) and the permanent magnet (31) are opposite in magnetic pole on the opposite side.
7. The numerical control multi-face machining device for the power battery copper-aluminum composite pole is characterized in that the pressure sensing connector (23) comprises a transmission block (36) and a pressure sensing chip (37), the transmission block (36) is slidably connected to the inner wall of the supporting seat (22), the pressure sensing chip (37) is fixedly installed on the outer side end face of the transmission block (36), the sensing end of the pressure sensing chip (37) is in contact fit with the inner wall of the supporting seat (22), and the transmission block (36) is connected to the outer wall of the bidirectional screw rod (24) through threads.
8. The numerical control multi-face machining equipment for the power battery copper-aluminum composite pole is characterized by further comprising a synchronous induction component (8) arranged on the linear sliding rail (21), wherein the synchronous induction component (8) comprises a limit sliding block (39) which is connected to the outer wall of the linear sliding rail (21) in a sliding mode and a locking stud (38) which is connected to the limit sliding block (39) in a threaded mode.
9. The numerical control multi-surface machining device for the power battery copper-aluminum composite pole is characterized in that a U-shaped conductor (40) is fixedly embedded in the inner wall of the limit sliding block (39), and an elastic electrode A (41) and an elastic electrode B (42) matched with the U-shaped conductor (40) are fixedly embedded in the inner wall of the supporting seat (22).
10. The numerical control multi-face machining equipment for the power battery copper-aluminum composite pole is characterized in that the elastic electrode A (41) and the elastic electrode B (42) are connected in series in a power supply circuit of the electromagnet (30) through an electric slip ring.
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| CN202311040005.2A CN116748904B (en) | 2023-08-17 | 2023-08-17 | Numerical control multi-surface machining equipment for copper-aluminum composite pole of power battery |
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