CN113972405B - Battery cell winding device - Google Patents
Battery cell winding device Download PDFInfo
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- CN113972405B CN113972405B CN202111215597.8A CN202111215597A CN113972405B CN 113972405 B CN113972405 B CN 113972405B CN 202111215597 A CN202111215597 A CN 202111215597A CN 113972405 B CN113972405 B CN 113972405B
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- 238000004804 winding Methods 0.000 title claims abstract description 195
- 230000007246 mechanism Effects 0.000 claims abstract description 113
- 230000005540 biological transmission Effects 0.000 claims abstract description 43
- 241001391944 Commicarpus scandens Species 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052744 lithium Inorganic materials 0.000 abstract description 3
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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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
- 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
-
- 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
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention provides an electric core winding device, which relates to the technical field of lithium battery production equipment and comprises a mounting base, a revolution base, a needle winding mechanism, a needle winding shaft assembly, a transmission structure and a needle winding motor, wherein the revolution base is rotationally connected to the mounting base, the needle winding shaft assembly comprises a sleeved outer shaft and a sleeved inner shaft, the sleeved outer shaft is rotationally connected to the revolution base, the sleeved inner shaft is coaxially connected with the needle winding mechanism, the sleeved inner shaft is arranged in the sleeved outer shaft, the sleeved inner shaft is suitable for moving along the axial direction of the sleeved outer shaft to drive the needle winding mechanism to axially move, the needle winding motor is connected with the revolution base, and an output shaft of the needle winding motor is in driving connection with the sleeved outer shaft through the transmission structure. The diameter of the needle winding shaft assembly can be processed to be larger, compared with the slender shaft assembly matched with the traditional through motor, the needle winding shaft assembly is higher in strength and not easy to break, and concentricity of the needle winding mechanism, the sleeve connecting inner shaft and the sleeve connecting outer shaft is also easy to ensure.
Description
Technical Field
The invention relates to the technical field of lithium battery production equipment, in particular to a battery core winding device.
Background
Currently, in the process of manufacturing lithium battery cells, a winding needle mechanism of a winding device is generally required to wind a separator. The existing needle winding mechanism is mostly driven by a through motor directly, and particularly, an outer shaft is sleeved with an inner shaft, the inner shaft is sleeved inside the outer shaft and is fixedly connected with a needle winding mechanism at the front end, the outer shaft and the inner shaft sleeved inside the outer shaft are driven to rotate by the through motor after penetrating through the through motor so as to realize the rotation of the needle winding mechanism, the inner shaft is used for axially moving in the outer shaft so as to realize the needle inserting and pulling action of the needle winding mechanism, and the inner shaft and the outer shaft are generally slender in design in the manufacturing process due to limited space of the through motor, so that the strength is low and the needle winding mechanism is easy to break.
Disclosure of Invention
The present invention aims to solve at least one of the above technical problems.
In order to solve the problems, the invention provides an electric core winding device which comprises a mounting base, a revolution base, a needle winding mechanism, a needle winding shaft assembly, a transmission structure and a needle winding motor, wherein the revolution base is rotationally connected with the mounting base, the needle winding shaft assembly comprises a sleeved outer shaft and a sleeved inner shaft, the sleeved outer shaft is rotationally connected with the revolution base, the sleeved inner shaft is coaxially connected with the needle winding mechanism, the sleeved inner shaft is arranged in the sleeved outer shaft, the sleeved inner shaft is suitable for moving along the axial direction of the sleeved outer shaft to drive the needle winding mechanism to axially move, the needle winding motor is connected with the revolution base, and an output shaft of the needle winding motor is in driving connection with the sleeved outer shaft through the transmission structure to drive the needle winding mechanism to rotate.
Compared with the prior art, the battery core winding device provided by the invention has the following beneficial effects:
the plurality of winding needle mechanisms can be arranged in the revolution base in an annular distribution mode around the axis of the revolution base, for example, three winding needle mechanisms are arranged, the three winding needle mechanisms form a multi-stage winding head, and the winding, rubberizing and discharging needle pulling circulation actions of the battery cells can be respectively carried out. The needle winding mechanism is connected with the sleeve inner shaft in the needle winding shaft assembly which is rotationally connected with the revolution base, so that the needle winding mechanism can synchronously rotate along with the revolution base, each needle winding mechanism corresponds to one needle winding shaft assembly, and the sleeve inner shaft is suitable for axially moving along the sleeve outer shaft so as to ensure the needle inserting and pulling action of the needle winding mechanism. When the needle winding mechanism winds the diaphragm, the needle winding motor is driven by the transmission structure to sleeve the outer shaft to rotate, the sleeve outer shaft is also driven by the sleeve outer shaft to sleeve the inner shaft to rotate, the needle winding mechanism is driven to rotate, the mounting base provides support for the rotation of the revolution base, the revolution base rotates relative to the mounting base to drive the needle winding mechanism to realize revolution, and the revolution of the needle winding mechanism is matched with the rotation of the needle winding mechanism to realize winding work of the needle winding mechanism. Compared with the traditional through motor direct drive needle winding mechanism, the needle winding motor can adopt the common servo motor, is low in price and high in applicability, is easy to purchase, and the needle winding shaft assembly does not need to pass through the needle winding motor, but is transmitted to the needle winding shaft assembly by the driving force of the needle winding motor through the transmission structure, the diameter of the needle winding shaft assembly cannot be limited by the traditional through motor, the diameter of the needle winding shaft assembly can be designed to be larger, the length of the needle winding shaft assembly is designed to be shorter, the strength of the needle winding shaft assembly is higher, the needle winding shaft assembly is not easy to break, and the concentricity of the needle winding mechanism, the sleeve inner shaft and the sleeve outer shaft is also easy to ensure.
Further, the inner socket shaft is keyed to the outer socket shaft.
Further, the transmission structure is a transmission belt transmission structure or a gear transmission structure.
Further, the revolution base comprises a revolution mandrel, a motor mounting plate and a connecting piece, the revolution mandrel is rotationally connected in the mounting base, the motor mounting plate is connected with the revolution mandrel through the connecting piece, the needle winding motor is mounted on the motor mounting plate, a driving needle synchronous wheel is mounted on an output shaft of the needle winding motor, the sleeved outer shaft comprises a spline synchronous wheel, and the spline synchronous wheel is in transmission connection with the driving needle synchronous wheel through a transmission belt.
Further, the battery cell winding device further comprises a revolution motor and a frame, wherein the revolution motor is arranged on the frame, and the revolution motor is in transmission connection with the revolution mandrel through a gear transmission structure.
Further, one end of the revolution mandrel, which is close to the revolution motor, is provided with a revolution gear seat, a revolution driven gear is arranged on the revolution gear seat, a revolution driving gear is arranged on an output shaft of the revolution motor, and the revolution driving gear is meshed with the revolution driven gear.
Further, the mounting base and the revolution mandrel are of cylindrical structures, bearings are arranged between the mounting base and two ends of the revolution mandrel, an inlet and outlet hole for the needle winding mechanism to come in and go out is formed in one end of the revolution mandrel, and a mounting hole for mounting the needle winding shaft assembly is formed in the other end of the revolution mandrel.
Further, the battery core winding device further comprises a pin inserting and pulling mechanism, wherein the pin inserting and pulling mechanism is arranged on the mounting base and used for driving the pin winding mechanism to axially move so as to insert or pull pins.
Further, the mounting base and the revolution base are provided with through grooves on the periphery, the inserting and pulling needle mechanism comprises an axial moving structure and a radial telescopic structure, the axial moving structure is suitable for driving the radial telescopic structure to axially move, and one end of the radial telescopic structure is suitable for extending into the through grooves to be connected with the needle winding mechanism so as to be synchronously driven to move by the axial moving structure.
Further, the battery cell winding device further comprises a sliding plate and a guide rail, the guide rail is connected with the revolution base, two ends of the length direction of the sliding plate are respectively connected with one guide rail in a sliding mode, the needle winding mechanism is rotationally connected with the sliding plate, the sliding plate is provided with a slot along the length direction of the sliding plate, the length direction of the sliding plate is perpendicular to the needle winding mechanism, the axial moving structure is a screw transmission structure, the screw transmission structure comprises a screw base, a screw motor, a screw and a screw sleeve, the radial telescopic structure comprises a telescopic cylinder and an insert, the screw base is arranged on the installation base, the screw is rotationally connected with the screw base, the screw sleeve is in threaded connection with the screw, the screw motor is in driving connection with the screw, the fixed end of the telescopic cylinder is arranged on the screw sleeve, one end of the insert is connected with the movable end of the telescopic cylinder, and the other end of the insert is suitable for being inserted into the slot of the sliding plate.
Drawings
FIG. 1 is a schematic block diagram of a view of a cell winding device according to an embodiment of the present invention;
FIG. 2 is a schematic view of another view of a cell winding device according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a cell winding device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of connection between a pin inserting and pulling mechanism and a pin winding mechanism according to an embodiment of the present invention.
Reference numerals illustrate:
1-mounting base, 2-revolution base, 21-revolution mandrel, 22-motor mounting plate, 23-revolution gear seat, 24-revolution driven gear, 25-guide rail, 26-bearing, 27-connector, 3-needle winding mechanism, 31-sliding plate, 311-slot, 4-needle winding shaft component, 41-socket inner shaft, 42-socket outer shaft, 421-spline synchronous wheel, 5-needle winding motor, 51-driving needle synchronous wheel, 52-driving belt, 6-inserting and extracting needle mechanism, 61-lead screw transmission structure, 611-lead screw base, 612-lead screw motor, 613-lead screw, 614-thread sleeve, 62-radial telescopic structure, 621-telescopic cylinder, 622-plug-in unit, 7-revolution motor, 71-revolution driving gear and 8-through slot.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "front", "rear", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Moreover, in the drawings, the X-axis indicates the longitudinal direction, i.e., the front-rear position, and the positive direction of the X-axis (i.e., the arrow of the X-axis points) indicates the front, and the negative direction of the X-axis (i.e., the direction opposite to the positive direction of the X-axis) indicates the rear.
It should also be noted that the foregoing X-axis is provided merely for the purpose of describing the present invention and for simplicity of description, and is not intended to indicate or imply that the devices or elements referred to must be in a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Referring to fig. 1 and 2, an electrical core winding device according to an embodiment of the present invention includes a mounting base 1, a revolution base 2, a needle winding mechanism 3, a needle winding shaft assembly 4, a transmission structure and a needle winding motor 5, wherein the revolution base 2 is rotatably connected to the mounting base 1, the needle winding shaft assembly 4 includes a sleeve outer shaft 42 and a sleeve inner shaft 41, the sleeve outer shaft 42 is rotatably connected to the revolution base 2, the sleeve inner shaft 41 is coaxially connected to the needle winding mechanism 3, the sleeve inner shaft 41 is disposed in the sleeve outer shaft 42, the sleeve inner shaft 41 is adapted to move along an axial direction of the sleeve outer shaft 42 to drive the needle winding mechanism 3 to move axially, the needle winding motor 5 is connected to the revolution base 2, and an output shaft of the needle winding motor 5 is in driving connection with the sleeve outer shaft 42 through the transmission structure.
In this embodiment, the plurality of winding needle mechanisms 3 may be installed in the revolution base 2 in an annular distribution around the axis of the revolution base 2, for example, three winding needle mechanisms 3 may be provided, and the three winding needle mechanisms 3 may form a multi-stage winding head, so as to perform the cycle actions of winding the battery cell, rubberizing the battery cell, and discharging and withdrawing the battery cell. The needle winding mechanism 3 is connected with the sleeve inner shaft 41 in the needle winding shaft assembly 4 which is rotationally connected with the revolution base 2, so that the needle winding mechanism 3 can synchronously rotate along with the revolution base 2, each needle winding mechanism 3 corresponds to one needle winding shaft assembly 4, and the sleeve inner shaft 41 is suitable for axially moving along the sleeve outer shaft 42 so as to ensure the needle inserting and extracting actions of the needle winding mechanism 3. When the needle winding mechanism 3 winds the diaphragm, the needle winding motor 5 drives the sleeve outer shaft 42 to rotate through the transmission structure, the sleeve outer shaft 42 also drives the sleeve inner shaft 41 to rotate, the needle winding mechanism 3 is further driven to rotate, the mounting base provides support for the rotation of the revolution base, the revolution base rotates relative to the mounting base to drive the needle winding mechanism to realize revolution, and the revolution of the needle winding mechanism is matched with the rotation of the needle winding mechanism to realize winding work of the needle winding mechanism 3. Compared with the traditional through motor direct drive needle winding mechanism, the needle winding motor 5 can adopt a common servo motor, is low in price and high in applicability, is easy to purchase, the needle winding shaft assembly 4 does not need to pass through the needle winding motor 3, the driving force of the needle winding motor 5 is transmitted to the needle winding shaft assembly 4 through the transmission structure, the diameter of the needle winding shaft assembly 4 cannot be limited by the traditional through motor, the diameter of the needle winding shaft assembly 4 can be designed to be larger, the length of the needle winding shaft assembly is designed to be shorter, the strength of the needle winding shaft assembly 4 is higher, the needle winding shaft assembly is not easy to break, and the concentricity of the needle winding mechanism 3, the sleeved inner shaft 41 and the sleeved outer shaft 42 is also easy to ensure.
Optionally, the inner socket shaft 41 and the outer socket shaft 42 are keyed.
Here, by the keyed connection, e.g. splined connection, of the socket outer shaft 42 with the socket inner shaft 41, it is ensured that the socket inner shaft 41 does not rotate relative to the socket outer shaft 53, but only moves in the axial direction of the socket outer shaft 42. Therefore, when the needle winding motor 5 works, the outer sleeved shaft 42 is driven to rotate relative to the revolution base 2 through the transmission structure, the inner sleeved shaft 41 is driven to rotate, and finally the needle winding mechanism 3 at the front end of the inner sleeved shaft 41 is driven to rotate, so that winding is realized. By means of the spline connection mode, the integration level of the winding needle shaft assembly 4 can be improved, and the installation is convenient.
It is understood that the axial direction of the socket inner shaft 41, the axial direction of the socket outer shaft 42, and the axial direction of the revolution base 2 are parallel.
Optionally, the transmission structure is a belt transmission structure or a gear transmission structure.
Referring to fig. 2 and 3, alternatively, the revolution base 2 includes a revolution mandrel 21 and a motor mounting plate 22, the revolution mandrel 21 is rotatably connected in the mounting base 1, the motor mounting plate 22 is connected with the revolution mandrel 21 through a connecting piece 27, the needle winding motor 5 is mounted on the motor mounting plate 22, a driving needle synchronizing wheel 51 is mounted on an output shaft of the needle winding motor 5, the sleeve joint outer shaft 42 includes a spline synchronizing wheel 421, and the spline synchronizing wheel 421 is in transmission connection with the driving needle synchronizing wheel 51 through a transmission belt 52.
Here, transmission structure is drive belt transmission structure, and transmission structure sets up between revolution dabber and motor mounting panel, can improve the whole integrated level of coiling mechanism, in addition, transmission structure sets up in exposing outside, conveniently changes or maintains.
Meanwhile, the winding needle motor 5 is arranged on the motor mounting plate 22, and the output shaft of the winding needle motor 5 faces the revolution mandrel 21, so that the whole length of the winding needle shaft assembly 4 can be shortened. The connecting piece 27 can be a plurality of connecting rods which are distributed between the motor mounting plate 22 and the rear end of the revolution mandrel 21 in a ring shape, so that the structural strength between the motor mounting plate 22 and the revolution mandrel is enhanced.
Optionally, the winding needle motor 5 is wired through an electrically conductive slip ring.
Here, since the winding needle motor 5 rotates along with the revolution mandrel 21 around the axis of the revolution mandrel 21, wiring can be performed through the conductive slip ring for convenience of energization.
Referring to fig. 2 and 3, the cell winding device optionally further comprises a revolution motor 7 and a frame (not shown in the drawings), wherein the revolution motor 7 is mounted on the frame, and the revolution motor 7 is in transmission connection with the revolution mandrel 21 through a gear transmission structure.
Here, the revolution mandrel 21 is driven to rotate by the revolution motor 7, so that the adjustment of the station of the needle winding mechanism 3 is realized, and the construction requirement is met. Through gear drive, transmission precision is high, and rotation angle control precision is high, avoids appearing processing error.
Referring to fig. 2 and 3, alternatively, a revolving gear seat 23 is disposed at an end of the revolving spindle 21 near the revolving motor 7, a revolving driven gear 24 is mounted on the revolving gear seat 23, a revolving driving gear 71 is mounted on an output shaft of the revolving motor 7, and the revolving driving gear 71 is meshed with the revolving driven gear 24.
Alternatively, a plurality of revolution motors 7 are provided, the plurality of revolution motors 7 are annularly distributed around the revolution driven gear 24, an output shaft of each revolution motor 7 is provided with a revolution driving gear 71, and each revolution driving gear 71 is meshed with the revolution driven gear 24.
In this way, the revolution driven gear 24 can be driven to rotate by the revolution motors 7 together, so as to drive the revolution mandrel 21 to rotate, the load of each revolution motor 7 can be reduced, the requirement for high power of the revolution motor 7 is reduced, and meanwhile, the service lives of the revolution driving gear 71 and the revolution motor 7 are prolonged.
Here, since the revolution driven gear 24 is driven to rotate in common using the plurality of revolution driving gears 71, the driving force is sufficient, and thus the revolution driving gears 71 can be provided to be small in diameter, reducing the occupied space.
Referring to fig. 3, alternatively, the mounting base 1 and the revolution mandrel 21 are in a cylindrical structure, a bearing 26 is disposed between two ends of the mounting base 1 and the revolution mandrel 21, one end of the revolution mandrel 21 is provided with an access hole for the needle winding mechanism 3 to go in and out, and the other end is provided with a mounting hole for mounting the needle winding shaft assembly 4.
Here, the mounting base 1 and the revolution mandrel 21 are both cylindrical structures, and both ends of the revolution mandrel 21 are rotatably connected with the mounting base 1 through bearings 26, so that the structural strength of the revolution mandrel 21 is ensured, and the rotation is more stable. When the needle winding mechanism 3 is not used, the needle winding mechanism 3 can be axially retracted into the revolution mandrel of the cylindrical structure, and a certain protection effect can be achieved.
Referring to fig. 1, optionally, the electrical core winding device further includes a pin inserting and pulling mechanism 6, where the pin inserting and pulling mechanism 6 is disposed on the mounting base 1 and is used to drive the winding pin mechanism 3 to axially move to insert or pull a pin, and specifically, the pin inserting and pulling mechanism 6 is used to drive the winding pin mechanism 3 to extend out of the access hole to insert a pin or drive the winding pin mechanism 3 to retract into the access hole to pull a pin.
Here, a plurality of the insertion and extraction mechanisms 6 may be provided, and when the winding mechanism 3 rotates at different positions along with the revolution mandrel 21, the axial movement may be driven by the insertion and extraction mechanisms 6 at the corresponding positions.
Referring to fig. 1, optionally, the mounting base 1 and the revolution base 2 (specifically, the revolution mandrel 21) are provided with through grooves 8 on the peripheral sides, the insertion and extraction needle mechanism 6 includes an axial moving structure and a radial telescopic structure 62, the axial moving structure is adapted to drive the radial telescopic structure 62 to axially move, and one end of the radial telescopic structure 62 is adapted to extend into the through grooves 8 and be connected with the needle winding mechanism 3 so as to be synchronously driven to move by the axial moving structure.
Here, the axial moving structure is mounted on the mounting base 1, and the longitudinal direction of the axial moving structure coincides with the axial direction of the mounting base 1, and the longitudinal direction (telescoping direction) of the radial telescoping structure 62 coincides with the radial direction of the mounting base 1. Therefore, after the revolution base 2 is stopped at the needle inserting and extracting position relative to the installation base 1 during needle inserting and extracting, the axial moving structure moves the radial telescopic structure 62 along the axial direction of the revolution base 2 until the radial telescopic structure 62 is aligned with the corresponding position of the needle winding mechanism 3 in the axial direction, then the radial telescopic structure 62 stretches through the through groove 8 and is connected with the needle winding mechanism 3, then the radial telescopic structure 62 and the needle winding mechanism 3 are driven to synchronously move axially through the axial moving structure so as to realize needle inserting and extracting, and the traditional needle inserting and extracting mechanism is simplified through the cooperation of one axial moving structure and one radial telescopic structure 62, so that the integral integration level of the winding device can be improved, the occupation of space is reduced, meanwhile, the axial moving structure can be arranged outside the installation base 1, the gap between the installation base 1 and the revolution base 2 is reduced, and the integration level of the installation base 1 and the revolution base 2 is higher. In addition, as described above, since the common servo motor and the transmission structure are adopted to drive the needle winding mechanism 3 to rotate in this embodiment, the diameter of the needle winding shaft assembly 4 is not limited by the conventional through motor, the diameter of the needle winding shaft assembly 4 can be designed to be larger, the length of the needle winding shaft assembly 4 is designed to be shorter, the strength of the needle winding shaft assembly 4 is higher, the needle winding mechanism is not easy to break, and the concentricity of the needle winding mechanism 3, the sleeve inner shaft 41 and the sleeve outer shaft 42 is easy to ensure, so that after the radial telescopic structure 62 is extended and connected with the needle winding mechanism 3, the axial movement of the needle winding mechanism 3 and the sleeve inner shaft 41 is more stable under the driving of the axial movement structure, and the radial fluctuation can not occur.
Referring to fig. 1 and 4, optionally, the electric core winding device further includes a sliding plate 31 and a guide rail 25, the winding needle mechanism 3 is rotatably connected to the sliding plate 31, the guide rail 25 is connected to the revolution base (specifically, the revolution mandrel 21), two ends of the sliding plate 31 in the length direction are slidably connected to one of the guide rails 25, the sliding plate 31 is provided with a slot 311 along the length direction, the length direction of the sliding plate 31 is perpendicular to the winding needle mechanism 3, the axial moving structure is a screw driving structure 61, the screw driving structure 61 includes a screw base 611, a screw motor 612, a screw 613, a screw sleeve 614, the radial telescopic structure 62 includes a telescopic cylinder 621 and an insert 622, the screw base 611 is disposed on the mounting base 1, the screw 613 is rotatably connected to the screw base 611, the screw sleeve 614 is slidably connected to the insert cylinder 611, the screw motor 612 is connected to the screw base 613, the fixed end of the screw motor 621 is disposed on the screw base 613, and the other end of the screw sleeve 614 is adapted to be inserted into the slot 622.
The rolling needle mechanism 3 is rotatably connected to the sliding plate 31, which means that the rolling needle mechanism 3 can rotate relative to the sliding plate, so that the rolling needle mechanism 3 is prevented from being blocked by the sliding plate 31 when rotating, but the sliding plate 31 can drive the rolling needle mechanism 3 to axially move along the movement of the guide rail 25, and thus, the contact pin or the needle drawing of the rolling needle mechanism 3 can be realized by moving the sliding plate 31. Of course, when the revolution mandrel 21 revolves, the guide rail 21, the slide plate 31 and the needle winding mechanism 3 are driven to rotate together.
Here, when the pin is inserted or pulled out, the screw motor 612 works to drive the screw 613 to rotate, the thread sleeve 614 on the screw 613 is driven by the screw base 611 to perform translational motion, and when the insert 622 is axially aligned with the slot 311 on the sliding plate 31 in the revolution mandrel 21, the screw motor 612 stops working, and at this time, the telescopic cylinder 621 is controlled to extend, so as to drive the insert 622 to be inserted into the slot 311 through the through slot 8, and then the screw motor 612 is continuously started to drive the needle winding mechanism 3 to move the pin forward or withdraw the pin.
Here, the length direction of the insertion slot 311 on the sliding plate 31 is perpendicular to the axial direction of the winding needle mechanism 3, so that it is ensured that the insertion piece 622 can still be inserted into the insertion slot 311 through the through slot 8 when the winding needle mechanism 3 rotates within a certain angle range along with the revolution mandrel 21.
Preferably, the sliding plate 31 is in a ring structure and is marked as a sliding ring, the sliding ring is concentric with the revolution mandrel 21 and is in sliding connection with the guide rail 25, the sliding ring is connected with the winding needle mechanism 3 through the mounting seat, the winding needle mechanism 3 is rotationally connected with the mounting seat, a circular slot is formed in the circumferential direction of the sliding ring and is marked as a circular slot, so that after the winding needle mechanism 3 stops along with the revolution mandrel 21 rotating at any angle, as long as the through slot 8 on the revolution mandrel 21 and the through slot 8 on the mounting base 1 have an overlapping part, the plug 622 can penetrate through the through slot 8 and be inserted into the circular slot, and the number of the through slots 8 and the length in the circumferential direction can be set according to practical conditions, so that the structural strength of the revolution mandrel and the mounting base can be ensured to the greatest extent.
The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" and "a second" may explicitly or implicitly include at least one such feature.
Although the present disclosure is disclosed above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the disclosure.
Claims (6)
1. The battery cell winding device is characterized by comprising a mounting base (1), a revolution base (2), a needle winding mechanism (3), a needle winding shaft assembly (4), a transmission structure and a needle winding motor (5), wherein the revolution base (2) is rotationally connected to the mounting base (1), the needle winding shaft assembly (4) comprises a sleeved outer shaft (42) and a sleeved inner shaft (41), the sleeved outer shaft (42) is rotationally connected to the revolution base (2), the sleeved inner shaft (41) is coaxially connected with the needle winding mechanism (3), the sleeved inner shaft (41) is arranged in the sleeved outer shaft (42), the sleeved inner shaft (41) is suitable for moving along the axial direction of the sleeved outer shaft (42) to drive the needle winding mechanism (3) to axially move, the needle winding motor (5) is connected with the revolution base (2), and an output shaft of the needle winding motor (5) is in driving connection with the outer shaft (42) through the transmission structure to drive the needle winding mechanism (3) to rotate;
the revolution base (2) comprises a revolution mandrel (21), a motor mounting plate (22) and a connecting piece (27), wherein the revolution mandrel (21) is rotationally connected in the mounting base (1), the motor mounting plate (22) is connected with the revolution mandrel (21) through the connecting piece (27), and the needle winding motor (5) is mounted on the motor mounting plate (22); the mounting base (1) and the revolution mandrel (21) are of cylindrical structures, a bearing (26) is arranged between the mounting base (1) and two ends of the revolution mandrel (21), one end of the revolution mandrel (21) is provided with an inlet and outlet hole for the needle winding mechanism (3) to enter and exit, and the other end of the revolution mandrel is provided with a mounting hole for mounting the needle winding shaft assembly (4);
the battery core winding device further comprises a pin inserting and pulling mechanism (6), wherein the pin inserting and pulling mechanism is arranged on the mounting base (1) and is used for driving the pin winding mechanism (3) to axially move so as to insert or pull pins; the mounting base (1) and the revolution base (2) are provided with through grooves (8) on the periphery, the inserting and pulling needle mechanism (6) comprises an axial moving structure and a radial telescopic structure (62), the axial moving structure is suitable for driving the radial telescopic structure (62) to move along the axial direction of the revolution base (2), and one end of the radial telescopic structure (62) is suitable for extending into the through grooves (8) to be connected with the needle winding mechanism (3) so as to be synchronously driven to move by the axial moving structure; the battery cell winding device further comprises a sliding plate (31) and a guide rail (25), wherein the guide rail (25) is connected with the revolution base (2), two ends of the sliding plate (31) in the length direction are respectively connected with one guide rail (25) in a sliding mode, the needle winding mechanism (3) is rotationally connected with the sliding plate (31), a slot (311) is formed in the sliding plate (31) along the length direction, the sliding plate (31) is perpendicular to the needle winding mechanism (3), the sliding plate (31) is a sliding ring in a ring-shaped structure, the sliding ring is concentric with the revolution mandrel (21), the sliding ring is connected with the guide rail (25) in a sliding mode, the sliding ring is connected with the needle winding mechanism (3) through a mounting seat, the needle winding mechanism (3) is rotationally connected with the mounting seat, and the slot (311) in a round shape is formed in the circumferential direction of the sliding ring; the axial moving structure is a screw transmission structure (61), the screw transmission structure (61) comprises a screw base (611), a screw motor (612), a screw (613) and a screw sleeve (614), the radial telescopic structure (62) comprises a telescopic cylinder (621) and an insert (622), the screw base (611) is arranged on the mounting base (1), the screw (613) is rotationally connected to the screw base (611), the screw sleeve (614) is in threaded connection with the screw (613), the screw sleeve (614) is in sliding connection with the screw base (611), the screw motor (612) is in driving connection with the screw (613), the fixed end of the telescopic cylinder (621) is arranged on the screw sleeve (614), one end of the insert (622) is connected with the movable end of the telescopic cylinder (621), and the other end of the insert (622) is suitable for being inserted into the slot (311) of the sliding plate (31).
2. Cell winding device according to claim 1, characterized in that the socket inner shaft (41) and the socket outer shaft (42) are keyed.
3. The cell winding device of claim 1, wherein the drive structure is a belt drive structure or a gear drive structure.
4. A cell winding device according to claim 3, characterized in that the output shaft of the winding needle motor (5) is provided with a driving needle synchronizing wheel (51), the sleeved outer shaft (42) comprises a spline synchronizing wheel (421), and the spline synchronizing wheel (421) is in transmission connection with the driving needle synchronizing wheel (51) through a transmission belt (52).
5. The cell winding device according to claim 4, further comprising a revolution motor (7) and a frame, wherein the revolution motor (7) is mounted on the frame, and the revolution motor (7) is in transmission connection with the revolution mandrel (21) through a gear transmission structure.
6. The cell winding device according to claim 5, wherein a revolution gear seat (23) is provided at one end of the revolution mandrel (21) close to the revolution motor (7), a revolution driven gear (24) is mounted on the revolution gear seat (23), a revolution driving gear (71) is mounted on an output shaft of the revolution motor (7), and the revolution driving gear (71) is meshed with the revolution driven gear (24).
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| CN202111215597.8A CN113972405B (en) | 2021-10-19 | 2021-10-19 | Battery cell winding device |
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| CN202111215597.8A CN113972405B (en) | 2021-10-19 | 2021-10-19 | Battery cell winding device |
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