CN220753524U - Battery cell winding mechanism and winding machine - Google Patents

Abstract

The utility model discloses a battery core winding mechanism and a winding machine, wherein the battery core winding mechanism comprises a rotatable turret and a plurality of winding needles, a front overturning bearing seat and a rear overturning bearing seat are respectively sleeved on the periphery of the front end and the periphery of the rear end of the turret, a rear flange is arranged at the rear end of the turret, the winding needles are arranged in the turret and uniformly distributed along the axial circumference of the turret, the front ends of the winding needles extend out of the turret through first mounting holes at the front end of the turret, the rear ends of the winding needles are connected with spline shafts, the tail ends of the spline shafts extend out of the turret through second mounting holes at the rear end of the turret and through holes of the rear flange, hollow motors are sleeved on the periphery of the spline shafts, the spline shafts are connected with the hollow motors through spline nuts, and the hollow motors are arranged at the rear ends of the rear flanges; the turret also comprises a turnover clamping assembly for clamping the rotation of the turret. The utility model improves the transmission precision and response speed, simplifies the structure, is convenient to assemble and maintain, and improves the production efficiency.

Description

Battery cell winding mechanism and winding machine

Technical Field

The utility model relates to the technical field of lithium battery manufacturing, in particular to a battery core winding mechanism and a winding machine.

Background

The winding mechanism of the existing lithium battery winding machine generally drives a plurality of winding needles, such as three winding needles, to rotate through a turret so that the winding needles are sequentially positioned at a winding station, a blanking station and a waiting station, and therefore, each winding needle can complete the action of winding and forming the battery core when positioned at the winding station. At present, a driving structure for driving a winding needle to rotate relative to a turret so as to realize winding forming of a battery cell is generally characterized in that a motor is connected with different synchronous pulleys through a plurality of layers of hollow shafts, a spline nut is connected through a synchronous belt, and the winding needle is connected through the spline nut. The structure has the advantages that the transmission precision is low, the response speed is low because the transmission layers are too many, the synchronous belt or the gear is adopted for transmitting power, the maintenance is difficult because the structure is compact, meanwhile, the concentricity and the straightness are required by the multi-layer hollow shaft, the processing and the assembly of parts are difficult to a certain extent, and the use requirement cannot be met. In addition, the structure often cannot clamp the rotation of the turret, so that the locking of the turret cannot be realized, and the stability of the turret is poor.

Accordingly, there is a need for an improved cell winding mechanism and winder.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the battery core winding mechanism and the winding machine, which have the advantages of improving transmission precision, improving response speed, simplifying structure, facilitating part processing and assembly, facilitating maintenance, clamping rotation of a turret, improving stability of the turret and improving production efficiency.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a battery core winding mechanism, which comprises a rotatable turret and a plurality of winding needles, wherein the outer periphery of the front end and the outer periphery of the rear end of the turret are respectively sleeved with a front overturning bearing seat and a rear overturning bearing seat, the turret can rotate relative to the front overturning bearing seat and the rear overturning bearing seat, the rear end of the turret is provided with a rear flange, the rotation of the turret can drive the rear flange to rotate, the winding needles are arranged in the turret and uniformly distributed along the axial center circumference of the turret, the front ends of the winding needles extend out of the turret through a first mounting hole at the front end of the turret, the winding needles can move back and forth relative to the turret, the rear ends of the winding needles are connected with spline shafts, the tail ends of the spline shafts extend out of the turret through a second mounting hole at the rear end of the turret, through holes of the rear flange, the spline shafts are sleeved with hollow motors, the spline shafts are connected with the hollow motors through spline nuts, the hollow motors are arranged at the rear ends of the rear flange, the hollow motors can drive the spline shafts to rotate relative to the spline shafts, and the winding needles can rotate relative to the spline shafts through the hollow nuts, and the spline nuts can rotate relative to the spline shafts; the turret also comprises a turnover clamping assembly used for clamping the rotation of the turret.

As the preferable technical scheme, one end of the spline nut, which is close to the winding needle, extends out of the hollow motor and extends into the turret through the through hole of the rear flange and the second mounting hole, the outer peripheral surfaces of the spline nuts of the winding needles are respectively provided with an induction piece, the induction pieces are positioned in the turret, and the front end of the rear overturning bearing seat is provided with a sensor corresponding to the winding station and used for inducing the induction pieces of the winding needles.

As the preferable technical scheme, the periphery cover of spline nut is equipped with the retaining member, the retaining member has the opening, open-ended both sides inner wall is equipped with two mounting hole sites respectively, two mounting hole sites extend to respectively the outer peripheral face of retaining member, install the fastener in two mounting hole sites, the fastener butt arrives spline nut's outer peripheral face, the response piece sets up on the outer peripheral face of retaining member.

As the preferable technical scheme, upset screens subassembly includes upset screens piece, screens cylinder and a plurality of screens axle, upset screens piece rotationally sets up the rear end of back upset bearing frame, the one end of upset screens piece is equipped with the recess, the other end of upset screens piece with the screens cylinder is connected, a plurality of screens axles set up respectively the rear end of rear flange and one-to-one are located one side of the hollow motor of a plurality of winding needles, the rotation of rear flange can drive a plurality of screens axle rotates, the screens cylinder is used for the drive upset screens piece is relative the rotation of back upset bearing frame, so that the recess of upset screens piece cooperatees or separates mutually with one of them screens axle.

As the preferable technical scheme, the front end of capstan head is equipped with preceding flange, the front end of preceding flange is equipped with the back shaft, the end of back shaft rotationally sets up on the top of support piece, the periphery of back shaft is equipped with the tail end support frame in the position cover that is close to the back shaft end, the tail end support frame be equipped with a plurality of book needle one-to-one's supporting position, the front end of book needle is used for cooperating with the supporting position that corresponds.

As the preferable technical scheme, the periphery of back shaft be equipped with a plurality of reel needle one-to-one's cutter backup plate, a plurality of cutter backup plates evenly distributed around the axle center circumference of back shaft, the cutter backup plate is equipped with the logical groove that supplies the cutter of cutter unit to stretch into.

As the preferable technical scheme, the rear end of capstan head and rear flange's rear end are equipped with the through-hole, run through in the through-hole and be provided with the support main shaft, the rear end of support main shaft passes the through-hole of support axle bed and is connected with electric slip ring, be equipped with the support bearing in the through-hole of support axle bed, the support bearing cover is established support main shaft's periphery, be equipped with on the outer peripheral face of support main shaft with the hole site that the cavity motor corresponds, the cavity motor is connected with the connecting wire, the one end of keeping away from of cavity motor passes the hole site, support main shaft's inside and with electric slip ring is connected, electric slip ring sets up support axle bed's rear end.

As the preferable technical scheme, the front end of supporting axle seat is equipped with upset support piece, upset support piece ring is established the periphery of supporting the main shaft, the end of integral key shaft is equipped with the universal ball, the universal ball be used for with upset support piece's front end sliding contact, upset support piece's periphery is equipped with and winds station, unloading station correspond dodges the position.

As the preferable technical scheme, the turret comprises a turret body, and is characterized by further comprising a driving assembly for driving the turret body to rotate, wherein the driving assembly comprises a driving motor, a speed reducer and a pinion, the driving motor is arranged on the speed reducer, the output end of the driving motor is connected with the input end of the speed reducer, the pinion is sleeved on the periphery of the output end of the speed reducer, the rear flange is a large gear, and the large gear is meshed with the pinion.

The second aspect of the utility model provides a winding machine, which comprises the battery core winding mechanism.

The beneficial effects of the utility model are as follows: according to the utility model, the hollow motor, the spline shaft and the spline nut are arranged, and the hollow motor is directly connected with the winding needle through the spline nut and the spline shaft so as to drive the winding needle to rotate relative to the turret; meanwhile, through the overturning clamping component, the rotating of the turret can be clamped, so that the turret is locked, the stability of the turret is improved, the quality of the winding forming battery cell is ensured, and the production efficiency is improved.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic view of a first angle of a winding mechanism for a battery cell according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a second angle of the cell winding mechanism of FIG. 1;

FIG. 3 is a schematic view of a third angle of the cell winding mechanism of FIG. 1;

FIG. 4 is a schematic plan view of the cell winding mechanism of FIG. 1 at a front view angle;

FIG. 5 is a schematic plan view of the cell winding mechanism of FIG. 1 at a rear view angle;

FIG. 6 is a schematic diagram of the winding needle, hollow motor, spline shaft, spline nut, sensor, and sensing piece of the cell winding mechanism of FIG. 1;

fig. 7 is a schematic cross-sectional view of the winding needle, hollow motor, spline shaft, and spline nut of the cell winding mechanism of fig. 1.

Detailed Description

The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present utility model based on the embodiments of the present utility model. In addition, all the coupling/connection relationships referred to in the patent are not direct connection of the single-finger members, but rather, it means that a better coupling structure can be formed by adding or subtracting coupling aids depending on the specific implementation. The technical features in the utility model can be interactively combined on the premise of no contradiction and conflict.

Referring to fig. 1 to 7, an embodiment of the utility model provides a battery cell winding mechanism, which includes a rotatable turret 10, a plurality of winding pins 20 for winding and forming battery cells, a driving assembly for driving the turret 10 to rotate, and a flip-flop clamping assembly for clamping the rotation of the turret 10.

The front end periphery and the rear end periphery of the turret 10 are respectively sleeved with a front turnover bearing seat 11 and a rear turnover bearing seat 12. The turret 10 can rotate relative to the front and rear roll-over bearing blocks 11, 12. The front turning bearing seat 11 and the rear turning bearing seat 12 are respectively arranged on the frame. The front roll-over bearing seat 11 and the rear roll-over bearing seat 12 are connected through a plurality of mounting rods 13. The mounting bars 13 are evenly distributed in a ring shape around the turret 10. The number of the mounting bars 13 may be set according to the actual situation.

In this embodiment, the turret 10 includes a front turret plate 14, a rear turret plate 15, and a plurality of connectors 16 connected between the front turret plate 14 and the rear turret plate 15. The front turning disc 14 and the rear turning disc 15 are arranged in parallel front and rear. The space between the front and rear turn-over disks 14 and 15 serves as the interior of the turret 10. The periphery cover of preceding upset dish 14 is equipped with preceding upset dish bearing, and the periphery cover of preceding upset dish bearing is equipped with preceding upset bearing frame 11, and the periphery cover of back upset dish 15 is equipped with back upset dish bearing, and the periphery back upset bearing frame 12 of back upset dish bearing, preceding upset dish bearing and back upset dish bearing can provide the support to the rotation of preceding upset dish 14, the rotation of back upset dish 15 respectively. The connector 16 may be a spline. In this embodiment, the number of the connecting members 16 is six, and it is understood that the number of the connecting members 16 can be set according to practical situations.

The front flange 141 is provided at the front end of the front turntable 14, the rear flange 34 is provided at the rear end of the rear turntable 15, and the rear flange 34 is a large gear.

The plurality of winding needles 20 are disposed in the turret 10 and uniformly distributed along the axial center circumference of the turret 10, and the front ends of the winding needles 20 protrude out of the turret 10 through the first mounting holes of the front end of the front turntable 14 and the through holes 142 of the front flange 141. The winding needle 20 moves back and forth relative to the turret 10. The front end of the front flange 141 supports the shaft 143, and the tip end of the support shaft 143 (i.e., the end of the support shaft 143 remote from the front flange 141) is rotatably provided at the tip end of the support 144, so that the rotation of the turret 10 can be supported by the support 144. The support 144 is adapted to be disposed on a frame. The outer periphery of the supporting shaft 143 is sleeved with a tail end supporting frame 145 at a position close to the tail end of the supporting shaft 143, the tail end supporting frame 145 is provided with supporting positions corresponding to the plurality of winding needles 20 one by one, and the front ends of the winding needles 20 are matched with the corresponding supporting positions.

The end of the support shaft 143 is rotatably disposed at the top end of the support 144, specifically: the top end of the supporting member 144 is provided with a hole site, and the end of the supporting shaft 143 is rotatably provided in the hole site through a bearing.

The periphery of the supporting shaft 143 is provided with cutter backup plates 146 corresponding to the plurality of winding needles 20 one by one, and the plurality of cutter backup plates 146 are uniformly distributed around the axial center of the supporting shaft 143. The cutter backup plate 146 is provided with a through groove into which the cutter of the cutter assembly extends. The cutter backup plate 146 is provided, so that the cutters of the cutter assemblies extend into the cutter backup plate, and after the winding of the formed battery cell through the winding needle 20, the cutting of the winding formed battery cell and the strip can be realized through the extending cutters.

In this embodiment, there are three winding pins 20, and as shown in fig. 4, among the three winding pins 20, the winding pin 20 located above the axis of the turret 10 is located at the winding station, the winding pin 20 located at the left of the axis of the turret 10 is located at the waiting station, and the winding pin 20 located at the right of the axis of the turret 10 is located at the discharging station. The number of the first mounting holes, the through holes 142 of the front flange 141, and the cutter back plates 146 corresponds to the number of the winding pins 20, and is three. It will be appreciated that the number of winding pins 20 may be set according to the actual situation.

The rear end of the winding needle 20 is connected with a spline shaft 41, and the tail end of the spline shaft 41 (the tail end, namely, the end of the spline shaft 41 far away from the winding needle 20) extends out of the turret 10 through a second mounting hole of the rear turning disc and a through hole of the rear flange 34. The spline shaft 41 is provided with a hollow motor 43 around the outer periphery thereof, the spline shaft 41 is connected to the hollow motor 43 through a spline nut 42 around the outer periphery thereof, and the hollow motor 43 is provided 43 at the rear end of the rear flange 34. The rotation of the turret 10 can drive the hollow motor 43 to rotate, so that the winding needle 20 can be driven to rotate through the spline nut 42 and the spline shaft 41, and the winding needle 20 is sequentially positioned at the winding station, the blanking station and the waiting station. The hollow motor 43 is used for driving the spline nut 42 to rotate, and the rotation of the spline nut 42 can drive the spline shaft 41 to rotate, so that the winding needle 20 can be driven to rotate relative to the turret 10, and the winding needle 20 can be used for winding and forming the battery cell. The spline shaft 41 can move back and forth relative to the spline nut 42, thereby driving the winding pin 20 to move back and forth relative to the turret 10. The spline shaft 41 is used for being matched with the winding needle moving driving assembly, and after the spline shaft 41 is matched with the winding needle moving driving assembly, the spline shaft 41 can be driven to move back and forth relative to the spline nut 42 through the winding needle moving driving assembly, so that the winding needle 20 can be driven to move back and forth relative to the turret 10. With this structure, in practical use, the winding needle 20 located on the left side of the axis of the turret 10 is taken as an example, and the winding needle 20 is located at the waiting station in the initial position. The winding needle 20 is first rotated by the turret 10 to position the winding needle 20 at the winding station. The winding needle 20 is then driven by a winding needle moving driving assembly corresponding to the winding needle 20 to move forward to a predetermined position relative to the turret 10, so that the front end of the winding needle 20 is matched with a corresponding supporting position, and thus the winding needle 20 can be supported by the tail end supporting frame 145 in the process of winding the formed battery cell. The winding needle 20 is then driven to rotate relative to the turret 10 by a hollow motor 43 corresponding to the winding needle 20, so that a winding-forming cell can be realized by the winding needle 20. After the completion, drive the needle 20 through the capstan head 10 and rotate in order to make the needle 20 be located the unloading station, so can carry out the unloading to the electric core that the needle 20 coiling was formed, then drive the needle 20 through the capstan head 10 and rotate in order to make the needle 20 get back to waiting for the station, so accomplish a cycle. The three winding needles 20 can be sequentially positioned at a winding station, a blanking station and a waiting station under the drive of the turret 10, and each winding needle 20 can finish the action of winding and forming the battery cell when positioned at the winding station.

According to the utility model, through the hollow motor 43, the spline shaft 41 and the spline nut 42, the hollow motor 43 is directly connected with the winding needle 20 through the spline nut 42 and the spline shaft 41, so that the winding needle 20 is driven to rotate relative to the turret 10, compared with the prior art, the transmission precision is improved, the response speed is improved, the structure is simplified, the parts are convenient to process and assemble, the maintenance is convenient, and the use requirement is greatly met.

The second mounting hole is provided with a first bearing 423, and the first bearing 423 is sleeved on the outer periphery of the spline nut 42. The provision of the first bearing 423 may provide rotational support for the spline nut 42. The number of the first bearings 423 may be set according to actual circumstances.

The turret 10 is provided with a mounting block 17, the mounting block 17 is provided with a first through hole, and the mounting block 17 is sleeved on the periphery of one end, close to the winding needle 20, of the spline shaft 41 through the first through hole. A second bearing 171 is arranged in the first through hole, and the second bearing 171 is sleeved on the outer periphery of one end of the spline shaft 41, which is close to the winding needle 20. The provision of the second bearing 171 may provide support for the rotation of the spline shaft 41. The number of the second bearings 171 may be set according to the actual situation. The installation piece 17 is equipped with two second through-holes, and first through-hole is located between two second through-holes, and the installation piece 17 overlaps the periphery of establishing at two connecting pieces 16 through two second through-holes to inside at the capstan head 10, can realize the connection between spline shaft 41 and the capstan head 10 through the installation piece 17, thereby can provide the support to the needle 20, can avoid the needle 20 to appear the condition of deformation at the in-process of coiling shaping electric core.

One end of the spline nut 42, which is adjacent to the winding pin 20, protrudes outside the hollow motor 43 and into the turret 10 through the through hole of the rear flange 34, the second mounting hole. The spline nuts 42 of the plurality of winding pins 20 are respectively provided with a sensing piece 52 on the outer circumferential surface, and the sensing pieces 52 are positioned in the turret 10. The front end of the rear overturning bearing seat 12 is provided with a sensor 51 corresponding to the winding station, and the sensor 51 is used for sensing a sensing piece 52 of the winding needle 20 so as to judge whether the winding needle 20 is positioned at a zero position before winding the formed battery cell, so that monitoring and checking on whether the winding needle 20 is positioned at the zero position can be realized. The zero position refers to a position where the rotation angle of the winding needle 20 is 0 degrees, i.e., an initial position of the winding needle 20. In practical application, when the winding needle 20 is located at the winding station and the sensor 51 senses the sensing piece 52 of the winding needle 20, the winding needle 20 is indicated to be located at the zero position, and the winding needle 20 can be driven to move forward to a preset position relative to the turret 10 by the winding needle moving driving assembly. When the sensor 51 does not detect the sensing piece 52 of the winding needle 20, it indicates that the winding needle 20 is not located at the zero position, at this time, the hollow motor 43 corresponding to the winding needle 20 drives the winding needle 20 to rotate relative to the turret 10 until the sensor 51 can sense the sensing piece 52 of the winding needle 20, and then the winding needle 20 is driven to move forward relative to the turret 10 to a preset position by the winding needle moving driving assembly. According to the utility model, by the aid of the sensor 51 and the sensing piece 52, at a winding station, the sensing piece 52 of the winding needle 20 is sensed by the sensor 51, and before the winding needle 20 winds the formed battery core, monitoring and checking on whether the winding needle 20 is positioned at a zero position can be realized, so that the rotation angle of the winding needle 20 before the winding formed battery core is ensured to be 0 degree each time, the number of turns of the winding needle 20 wound and formed battery core each time is ensured to be consistent, and the production efficiency is improved.

In this embodiment, the sensor 51 is a slot type photoelectric sensor switch, and the slot type photoelectric sensor switch is disposed at the front end of the rear tilting bearing housing 12 through the sensor bracket 512. The sensing piece 52 is a T-shaped sheet metal part. In practice, the sensing signal is triggered when the end of the sensing piece 52 (i.e., the end remote from the spline nut 42) is inserted into the sensing slot of the sensor 51, and thus the sensing piece 52 is sensed.

In this embodiment, the spline nut 42 is provided with a lock 422 around its outer periphery. The lock 422 has an opening 4221, two mounting holes 4222 are respectively provided on both side inner walls of the opening 4221, the two mounting holes 4222 are respectively extended to the outer peripheral surface of the lock 422, fasteners such as bolts or the like are mounted in the two mounting holes 4222, and the fasteners are abutted to the outer peripheral surface of the spline nut 42. The sensing piece 52 is provided on the outer circumferential surface of the locker 422. By providing the sensing piece 52 on the outer peripheral surface of the locker 422, it is ensured that the sensing piece 52 can be rotated synchronously with the spline nut 42, and the occurrence of the unsynchronized condition can be avoided.

The outer circumferential surface of the locker 422 is provided with a mounting position near the front end thereof, and the sensing piece 52 is disposed in the mounting position.

Through holes are formed in the rear end of the rear turnover disc 15 and the rear end of the rear flange 34, a supporting main shaft 44 is arranged in the through holes in a penetrating mode, and the supporting main shaft 44 can be driven to rotate by rotation of the turret 10. The rear end of the support spindle 44 passes through a through hole of the support shaft seat 47 and is connected with an electric slip ring 45. A support bearing is arranged in the through hole of the support shaft seat 47, and the support bearing is sleeved on the periphery of the support main shaft 47. Support for the rotation of the turret 10 is provided by support shaft seats 47. The outer circumferential surface of the support main 44 is provided with a hole site 441 corresponding to the hollow motor 43. The hollow motor 43 is connected with a connecting wire, and one end of the connecting wire, which is far away from the hollow motor 43, passes through the hole site 441, the inside of the support main shaft 44, and is connected with the electric slip ring 45. The connection line is, for example, a power line. The electrical slip ring 45 is provided to avoid the winding of the connection wire during the rotation of the hollow motor 43 with the turret 10. The hollow motor 43 is provided with an encoder, and an encoder wire connected with the encoder can also be connected with the electric slip ring 45 through a hole site and the inside of the supporting main shaft 44. The electrical slip ring 45 is disposed 47 at the rear end of the support shaft seat 47, and mounting support for the electrical slip ring 45 is provided by the support shaft seat 47. The support shaft seat 47 is disposed on the machine 48. The machine table 48 is configured to be disposed on a rack.

The front end of the supporting shaft seat 47 is provided with a turnover supporting member 49 through a mounting rod, and the turnover supporting member 49 is annularly arranged on the periphery of the supporting main shaft 44. The end of the spline shaft 41 is provided with a universal ball 21, and the universal ball 21 is adapted to be in sliding contact with the front end of the turning support 49. During the rotation of the winding needle 20 by the turret 10, the universal ball 21 is in sliding contact with the front end of the flip support 49, thus ensuring the stable rotation of the winding needle 20.

The outer periphery of the turning support 49 is provided with a avoiding position 491 corresponding to the winding station and the blanking station. In practical application, when the winding needle 20 is located at the winding station or the blanking station, the universal ball 21 of the winding needle 20 corresponds to the avoiding position 491, and the universal ball 21 can be avoided through the avoiding position 491, so that the tail end of the spline shaft 41 of the winding needle 20 is conveniently matched with the winding needle moving driving assembly, and the winding needle moving driving assembly is convenient for driving the winding needle 20 to move back and forth relative to the turret 10.

The drive assembly includes a drive motor 31, a speed reducer 32, and a pinion 33. The driving motor 31 is disposed on a speed reducer 32, and the speed reducer 32 is disposed on the frame through a speed reducer base. An output end of the drive motor 31 is connected to an input end of the speed reducer 32. Pinion 33 is fitted around the outer periphery of the output end of speed reducer 32. Since the rear flange 34 is a large gear, the small gear 33 is meshed with the large gear. The driving motor 31 is used for driving the pinion 33 to rotate through the speed reducer 32, so that the rear flange 34 can be driven to rotate, the rear flange 34 can be driven to rotate by rotating the rear turnover disc 15, so that the front turnover disc 14 can be driven to rotate through the plurality of connecting pieces 16, and the turret 10 can be driven to rotate through the driving motor 31, the speed reducer 32 and the pinion 33.

As shown in fig. 3 and 5, the flip-flop detent assembly includes a flip-flop detent member 61 having an L-shape, a detent cylinder 62, and a plurality of detent shafts 63.

The flip-flop stopper 61 is rotatably provided at the rear end of the rear flip-flop bearing housing 12. Specifically, the rear end of back upset bearing frame 12 is equipped with the installation axle, and upset screens piece 61 is equipped with the screens through-hole, and upset screens piece 61 is established in the one end periphery of keeping away from back upset bearing frame 12 of installation axle through the screens through-hole cover, is equipped with the bearing in the screens through-hole, and the one end periphery of keeping away from back upset bearing frame 12 at the installation axle is established to the bearing housing. The flip-flop catch 61 can rotate about the axis of the mounting shaft.

One end of the turnover clamping piece 61 is provided with a groove 611, and the other end of the turnover clamping piece 61 is connected with the tail end of the output shaft of the clamping cylinder 62. The clamping cylinder 62 is arranged on the frame. The detent cylinder 62 is used for driving the flip-flop detent 61 to rotate. The plurality of detent shafts 63 are respectively provided at the rear end of the rear flange 34 and are located at one side of the hollow motor 43 of the plurality of winding pins 20, such as one side of the hollow motor 43 in the clockwise direction. Rotation of the rear flange 34 rotates the plurality of detent shafts 63. The latch cylinder 63 is used for driving the flip latch 61 to rotate relative to the rear flip bearing seat 12 so that the groove 611 of the flip latch 61 is matched with or separated from one of the latch shafts 63. The detent shaft 63 is a cam follower. In this embodiment, when the winding needle 20 is located at the blanking station, the overturning and clamping piece 61 is located below the winding needle 20, and the clamping shaft 63 located at one side of the hollow motor 43 of the winding needle 20 corresponds to the overturning and clamping piece 61, and the overturning and clamping piece 61 is driven to rotate relative to the rear overturning bearing seat 12 by the clamping cylinder 62, so that the groove 611 of the overturning and clamping piece 61 is matched with the corresponding clamping shaft 63, and the rotation of the turret 10 can be clamped. In practical application, for example, taking the winding needle 20 located at the left of the axis of the turret 10 as an example, in the initial position, the winding needle 20 is located at the waiting station, when the winding needle 20 is located at the discharging station under the driving of the turret 10, the clamping shaft 63 located at one side of the hollow motor 43 of the winding needle 20 corresponds to the turning clamping element 61, and the turning clamping element 61 is driven to rotate relative to the rear turning bearing seat 12 by the clamping cylinder 62, so that the groove 611 of the turning clamping element 61 is matched with the corresponding clamping shaft 63, and thus, the rotation of the turret 10 can be clamped, so as to realize locking of the turret 10. After the blanking of the winding needle 20 is completed, the overturning clamping piece 61 is driven to rotate in a clockwise direction by the clamping cylinder 62, so that the groove 611 of the overturning clamping piece 61 is separated from the corresponding clamping shaft 63, and the unlocking of the turret 10 can be realized.

According to the utility model, through the turnover clamping assembly, the rotation of the turret 10 can be clamped, so that the turret 10 is locked, the stability of the turret 10 is improved, the quality of the winding formed battery core is ensured, and the production efficiency is improved.

The number of the winding pins 20 in this embodiment is three, and thus the number of the detent shafts 63 is also three.

The utility model also provides a winding machine comprising the battery core winding mechanism.

While the preferred embodiment of the present utility model has been described in detail, the present utility model is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model, and these equivalent modifications or substitutions are included in the scope of the present utility model as defined in the appended claims.

Claims (10)

1. The utility model provides a battery cell winding mechanism, includes rotatable capstan head and a plurality of book needle, the front end periphery of capstan head, rear end periphery cover respectively have preceding upset bearing frame, back upset bearing frame, the capstan head can rotate relative preceding upset bearing frame, back upset bearing frame, the rear end of capstan head is equipped with the rear flange, the rotation of capstan head can drive the rear flange rotates, a plurality of book needles set up in the capstan head and along the axle center circumference evenly distributed of capstan head, the front end of book needle stretches out outside the capstan head through the first mounting hole of capstan head front end, book needle can be relative the capstan head back-and-forth movement, its characterized in that,

the rear end of the winding needle is connected with a spline shaft, the tail end of the spline shaft extends out of the turret through a second mounting hole at the rear end of the turret and a through hole of the rear flange, a hollow motor is sleeved on the periphery of the spline shaft, the spline shaft is connected with the hollow motor through a spline nut, the hollow motor is arranged at the rear end of the rear flange, the rotation of the turret can drive the hollow motor to rotate, so that the winding needle can be driven to rotate through the spline nut and the spline shaft, the winding needle can be sequentially positioned at a winding station, a blanking station and a waiting station, the hollow motor is used for driving the spline shaft to rotate through the spline nut, so that the winding needle can be driven to rotate relative to the turret, and the spline shaft can be driven to move back and forth relative to the turret, so that the winding needle can be driven to move back and forth relative to the turret;

the turret also comprises a turnover clamping assembly used for clamping the rotation of the turret.

2. The battery cell winding mechanism according to claim 1, wherein one end of the spline nut, which is close to the winding needle, extends out of the hollow motor and extends into the turret through the through hole of the rear flange and the second mounting hole, sensing pieces are respectively arranged on the outer peripheral surfaces of the spline nuts of the winding needles, the sensing pieces are positioned in the turret, and a sensor corresponding to a winding station is arranged at the front end of the rear overturning bearing seat and used for sensing the sensing pieces of the winding needles.

3. The cell winding mechanism according to claim 2, wherein a locking member is sleeved on the periphery of the spline nut, the locking member has an opening, two mounting hole sites are respectively arranged on inner walls of two sides of the opening, the two mounting hole sites respectively extend to the outer peripheral surface of the locking member, a fastener is mounted in the two mounting hole sites, the fastener is abutted to the outer peripheral surface of the spline nut, and the sensing piece is arranged on the outer peripheral surface of the locking member.

4. The battery cell winding mechanism according to claim 1, wherein the turnover clamping assembly comprises a turnover clamping piece, a clamping cylinder and a plurality of clamping shafts, the turnover clamping piece is rotatably arranged at the rear end of the rear turnover bearing seat, one end of the turnover clamping piece is provided with a groove, the other end of the turnover clamping piece is connected with the clamping cylinder, the clamping shafts are respectively arranged at the rear end of the rear flange and are located at one side of the hollow motor of the plurality of winding needles in a one-to-one correspondence manner, the rotation of the rear flange can drive the clamping shafts to rotate, and the clamping cylinder is used for driving the turnover clamping piece to rotate relative to the rear turnover bearing seat so that the groove of the turnover clamping piece is matched with or separated from one of the clamping shafts.

5. The battery cell winding mechanism according to claim 1, wherein a front flange is arranged at the front end of the turret, a supporting shaft is arranged at the front end of the front flange, the tail end of the supporting shaft is rotatably arranged at the top end of the supporting piece, a tail end supporting frame is sleeved on the periphery of the supporting shaft at a position close to the tail end of the supporting shaft, supporting positions corresponding to the winding needles one by one are arranged on the tail end supporting frame, and the front ends of the winding needles are used for being matched with the corresponding supporting positions.

6. The battery cell winding mechanism according to claim 5, wherein the outer periphery of the supporting shaft is provided with cutter backup plates corresponding to the plurality of winding needles one by one, the plurality of cutter backup plates are uniformly distributed around the axial center of the supporting shaft, and the cutter backup plates are provided with through grooves for extending cutters of the cutter assembly.

7. The battery cell winding mechanism according to claim 1, wherein through holes are formed in the rear end of the turret and the rear end of the rear flange, a support main shaft penetrates through the through holes of the support main shaft, an electric slip ring is connected to the rear end of the support main shaft, a support bearing is arranged in the through holes of the support main shaft, the support bearing is sleeved on the periphery of the support main shaft, a hole position corresponding to the hollow motor is formed in the peripheral surface of the support main shaft, the hollow motor is connected with a connecting wire, one end, far away from the hollow motor, of the connecting wire penetrates through the hole position, the inside of the support main shaft and is connected with the electric slip ring, and the electric slip ring is arranged at the rear end of the support main shaft.

8. The battery cell winding mechanism according to claim 7, wherein the front end of the supporting shaft seat is provided with a turnover supporting piece, the turnover supporting piece is annularly arranged on the periphery of the supporting main shaft, the tail end of the spline shaft is provided with a universal ball, the universal ball is used for being in sliding contact with the front end of the turnover supporting piece, and the periphery of the turnover supporting piece is provided with a avoiding position corresponding to a winding station and a blanking station.

9. The cell winding mechanism according to claim 1, further comprising a driving assembly for driving the turret to rotate, wherein the driving assembly comprises a driving motor, a speed reducer and a pinion, the driving motor is arranged on the speed reducer, an output end of the driving motor is connected with an input end of the speed reducer, the pinion is sleeved on the periphery of the output end of the speed reducer, and the rear flange is a large gear meshed with the pinion.

10. A winding machine comprising a cell winding mechanism according to any one of claims 1 to 9.