CN212461785U

CN212461785U - Electricity core extrusion device

Info

Publication number: CN212461785U
Application number: CN202020457519.3U
Authority: CN
Inventors: 李文; 蒋烜; 康颖
Original assignee: Wuxi Autowell Technology Co Ltd
Current assignee: Wuxi Autowell Technology Co Ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2021-02-02
Anticipated expiration: 2030-04-01

Abstract

The utility model provides an electricity core extrusion device, it includes that workstation, electricity core bear the weight of the mechanism, push down the mechanism and go up the pressure mechanism, wherein: the battery cell bearing mechanism is arranged on the workbench and used for bearing a battery cell, and an upward pressing channel penetrating through the battery cell bearing mechanism is formed on the battery cell bearing mechanism; the pressing mechanism is arranged above the battery cell bearing mechanism, and the pressing mechanism is configured to press the battery cell loaded on the battery cell bearing mechanism downwards; the upper pressing mechanism is arranged below the battery cell bearing mechanism and is configured to upwards extrude the battery cell borne on the battery cell bearing mechanism through the upper pressing channel. Through the cooperation of pushing down mechanism and last pressure mechanism, the utility model discloses an extrusion when electric core extrusion device can realize both sides about electric core to make electric core upper and lower surface atress balanced, reduced the pressure loss rate of electric core.

Description

Electricity core extrusion device

Technical Field

The utility model belongs to the technical field of lithium cell module production and specifically relates to an electricity core extrusion device.

Background

With the rapid development of automobile energy and electric automobile industries, lithium batteries are applied to new energy automobiles more and more widely. Under the general condition, adopt a plurality of electric cores to pile up and organize, encapsulate electric core module and can form a battery package afterwards. Generally, after the stacking of the cells is completed, the cells need to be compressed by using a cell compression device. Conventional cell compression devices typically compress the cells by compressing the stacked cells by pressing them one-sided downward. In the extrusion process, the battery core is easily damaged due to uneven stress, so that the yield of the battery pack is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the above-mentioned technical defect that current electric core extrusion device exists, provide an electric core extrusion device, it can realize extrudeing in the time of both sides about the electric core to make electric core upper and lower surface atress balanced, reduced the loss rate of electric core. The technical scheme of the utility model as follows:

the utility model provides a battery core extrusion device, includes that workstation, electric core bear the weight of the mechanism, push down the mechanism and go up the pressure mechanism, wherein:

the battery cell bearing mechanism is arranged on the workbench and used for bearing a battery cell, and an upward pressing channel penetrating through the battery cell bearing mechanism is formed on the battery cell bearing mechanism;

the pressing mechanism is arranged above the battery cell bearing mechanism and is configured to downwards extrude the battery cell loaded on the battery cell bearing mechanism;

the upper pressing mechanism is arranged below the battery cell bearing mechanism and is configured to upwards extrude the battery cell borne on the battery cell bearing mechanism through the upper pressing channel.

Through the cooperation of pushing down mechanism and last pressure mechanism, the utility model discloses an extrusion when electric core extrusion device can realize both sides about electric core to make electric core upper and lower surface atress balanced, reduced the pressure loss rate of electric core.

In some embodiments, the pressing mechanism comprises a column, a lifting beam driving mechanism, a lower pressing portion, and a pressure sensor, wherein: the upright posts are arranged on the workbench in pairs; two ends of the lifting beam are respectively connected to an upright column in a sliding manner; the lower extrusion part is connected to the lifting cross beam and is positioned below the lifting cross beam, and a lower extrusion end face for extruding the battery cell is formed on the lower extrusion part; the driving end of the lifting beam driving mechanism is connected with the lifting beam to drive the lifting beam to move up and down along the upright post, so that the lower extrusion part is driven to move synchronously; the pressure sensor is arranged between the driving end of the lifting beam driving mechanism and the lifting beam, the pressure sensor is connected with a control system of the lifting beam driving mechanism, and the pressure sensor is used for acquiring pressure information and transmitting the pressure information to the control system of the lifting beam driving mechanism.

The utility model provides a simple structure's mechanism that pushes down, it drives down through the lifting beam and pushes down extrusion portion to the realization is to the extrusion downwards of electricity core. Through set up pressure sensor between lifting beam actuating mechanism's drive end and lifting beam, then can realize the pressure monitoring and the regulation to pushing down the mechanism to guarantee that pushing down the mechanism's overdraft keeps in reasonable scope.

In some embodiments, the lower press section comprises a base plate, a support plate guide rod, and a support plate drive mechanism, wherein: the bottom plate is connected to the lifting cross beam through a connecting rod, and the lower surface of the bottom plate is connected with a plurality of first lower pressing plates; the supporting plate guide rod is connected between the lifting cross beam and the bottom plate, the supporting plate is connected to the supporting plate guide rod in a sliding mode, and the lower surface of the supporting plate is connected with a plurality of second lower pressing plates; the driving end of the supporting plate driving mechanism is connected with the supporting plate to drive the supporting plate to move up and down, and the supporting plate driving mechanism drives the supporting plate to move down until the lower end face of the second lower pressing plate is flush with the lower end face of the first lower pressing plate to form the lower pressing end face.

Through the cooperation of first holding down plate and second holding down plate, the portion of extruding down compresses tightly electric core through first holding down plate earlier, then continues extrusion electric core downwards through the second holding down plate to the pushing down effect of mechanism to electric core has been promoted.

In some embodiments, the hold-down mechanism further comprises a support plate limiting mechanism connected to the lifting beam and located on both sides of the support plate, the support plate limiting mechanism comprising a first roller bearing and a first roller bearing driving mechanism, wherein: the first roller bearing is attached to the lifting cross beam, and the driving end of the first roller bearing driving mechanism is connected with the first roller bearing so as to drive the first roller bearing to move towards or away from the supporting plate; when the support plate driving mechanism drives the support plate to move downwards to a preset position, the first roller bearing driving mechanism drives the first roller bearing to move towards the support plate, so that the first roller bearing is supported between the lifting cross beam and the support plate.

Through setting up backup pad stop gear, the extrusion in-process is guaranteed that the second pushes down the clamp plate and lasts, supports steadily and leans on the up end of electric core to the realization is to lasting, stable extrusion of the up end of electric core, has further promoted the effect of pushing down of mechanism to electric core.

In some embodiments, the pressing mechanism further includes a grating ruler disposed on the pillar, the grating ruler is connected to the control system of the lifting beam driving mechanism, and the grating ruler is configured to acquire position information of the lifting beam in the vertical direction and send the acquired position information to the control system of the lifting beam driving mechanism.

Through the cooperation of grating chi and pressure sensor, control system can judge and bear whether satisfy the production requirement in the electric core module after the pile on electric core bearing mechanism.

In some embodiments, the pressing mechanism comprises a lifting guide mechanism, a lifting plate driving mechanism and an upper pressing part, wherein: the lifting plate is connected to the lifting guide mechanism in a sliding manner; the upper extrusion part is connected to the lifting plate and positioned above the lifting plate, and an upper extrusion end face for extruding the battery cell is formed on the upper extrusion part; the driving end of the lifting plate driving mechanism is connected with the lifting plate so as to drive the lifting plate to move up and down along the lifting guide mechanism; when the lifting plate driving mechanism drives the lifting plate to move upwards, the upper extrusion part penetrates through the upper pressure channel and extrudes the battery cell loaded on the battery cell loading mechanism upwards.

The utility model provides a simple structure's last pressure mechanism, it drives extrusion portion and pushes up through the lifter plate to the realization is to the upwards extrusion of electricity core.

In some embodiments, the upper pressing portion comprises a lifting plate, a lifting plate driving mechanism, a connecting guide block, and an upper pressing plate, wherein: the connecting guide block is connected to the lifting plate; the jacking plate is connected to the connecting guide block in a sliding manner, and the upper surface of the jacking plate is connected with a plurality of upper pressing plates; the driving end of the jacking plate driving mechanism is connected with the jacking plate so as to drive the jacking plate to move up and down.

Through the cooperation of connecting guide block and top board, the extrusion in-process, connect the guide block earlier upwards to compress tightly and support and live electric core and bear the mechanism, and the top board is then upwards stretched out, and electric core bears the up end of mechanism and the up end of top board and upwards extrudees electric core jointly, has promoted the last effect of pressing of top mechanism to electric core.

In some embodiments, the pressing mechanism further comprises a lifting plate limiting mechanism connected to the lifting plate and located on two sides of the lifting plate, the lifting plate limiting mechanism comprises a second roller bearing and a second roller bearing driving mechanism, wherein: the second roller bearing is abutted against the lifting plate, and the driving end of the second roller bearing driving mechanism is connected with the second roller bearing so as to drive the second roller bearing to move towards or away from the lifting plate; when the jacking plate driving mechanism drives the jacking plate to move upwards to the preset position, the second roller bearing driving mechanism drives the second roller bearing to move towards the jacking plate, so that the second roller bearing is supported between the lifting plate and the jacking plate.

Through setting up jacking board stop gear, the extrusion in-process is guaranteed that the top board lasts, supports steadily and leans on the lower terminal surface of electric core, has further promoted the top effect of pushing up the mechanism to electric core.

In some embodiments, the pressing mechanism further comprises a lifter plate limiting mechanism connected to the workbench and located at the side of the lifter plate, the lifter plate limiting mechanism comprises a wedge-shaped block and a wedge-shaped block driving mechanism, wherein: the wedge-shaped block is connected to the workbench in a sliding mode, and the driving end of the wedge-shaped block driving mechanism is connected with the wedge-shaped block to drive the wedge-shaped block to move towards or away from the lifting plate; when the lifting plate driving mechanism drives the lifting plate to move upwards to the preset position, the wedge block driving mechanism drives the wedge block to move towards the lifting plate, so that the wedge block is supported between the lifting plate and the workbench.

Through setting up lifter plate stop gear, the extrusion in-process is connected the guide block and can be realized bearing mechanism's continuation, stable support to electric core to make electric core bear the up end of mechanism last, support steadily and lean on the lower terminal surface of electric core, further promoted the last effect of pressing of mechanism to electric core.

In some embodiments, the cell carrying mechanism includes a turntable and a carrying member, and the cell extruding device further includes a cell stacking mechanism, wherein: the turntable comprises a turntable bearing plate and a rotary driving mechanism for driving the turntable bearing plate to rotate, and a turntable through groove penetrating through the turntable bearing plate is formed in the turntable bearing plate; the bearing piece is arranged on the turntable bearing plate and positioned above the turntable through grooves, a battery cell bearing surface for bearing a battery cell is formed at the upper end of the bearing piece, a plurality of bearing piece through grooves penetrating through the bearing piece are formed on the bearing piece, and the bearing piece through grooves and the turntable through grooves are vertically communicated to form an upward pressing channel; the carousel loading board is rotatory in order to drive and hold carrier rotation under rotary drive mechanism's drive, hold and be equipped with electric core on the rotatory route of carrier at least and pile up station and electric core extrusion station, electric core pile up the mechanism and is configured to pile up electric core to rotatory electric core and pile up the station, push down the mechanism and be configured to push down and hold in rotatory electric core that holds on the carrier of electric core extrusion station, push up the mechanism and be configured to push up and hold in rotatory electric core that holds on the carrier of electric core extrusion station.

Bear the carrier and pile up the station at electric core and rotate between the electric core extrusion station through carousel drive, the utility model discloses can realize that the automation of electric core piles up before extrudeing electric core to production efficiency has been promoted.

In some embodiments, the cell pressing device further includes a jacking mechanism and a laser displacement sensor, wherein: the jacking mechanism is arranged at the battery cell stacking station and positioned below the rotary table, and is configured to jack up upwards through the rotary table through groove and rotate to the bearing piece of the battery cell stacking station so as to drive the battery cell borne on the bearing piece to jack up upwards; the laser displacement sensor is arranged at the cell stacking station and located above the bearing part, the laser displacement sensor is connected with a control system of the jacking mechanism, the laser displacement sensor is configured to acquire height information of a cell borne on the bearing part rotating to the cell stacking station, the acquired height information is transmitted to the control system of the jacking mechanism, and the control system of the jacking mechanism controls the jacking mechanism to jack up the bearing part upwards based on the acquired height information.

Through setting up climbing mechanism, electric core piles up the in-process, can adjust in real time and bear the weight of the ascending height of up end in the vertical direction of the electric core that holds on the carrier. Through setting up laser displacement sensor, then can acquire the up end that bears the weight of the electric core on bearing the weight of piece height in vertical direction to realize climbing mechanism to the up end of bearing the weight of the electric core on bearing the weight of piece height adjustment in vertical direction.

In some embodiments, the cell pressing device further includes a cell pressing mechanism disposed on the turntable bearing plate and located at a side edge of the bearing member, and when the turntable bearing plate drives the bearing member to rotate, the cell pressing mechanism is configured to press the cell borne on the bearing member onto the bearing member; electric core extrusion device still includes technology board storage mechanism and technology board feed mechanism, wherein: the process board storage mechanism is used for storing process boards, and the process board feeding mechanism is configured to pick up the process boards from the process board storage mechanism and place the picked-up process boards on the battery cell bearing surface of the bearing piece rotating to the battery cell stacking station or stack the process boards on the upper end surface of the stacked battery cells.

Through setting up electric core hold-down mechanism, compress tightly piling up good electric core, prevent to pile up good electric core landing from the carousel loading board at rotatory in-process. Through setting up technology board storage mechanism and technology board feed mechanism, then realized the automatic feeding of the nearby storage of technology board and technology board, further promoted production efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention at a viewing angle;

fig. 2 is a schematic structural view of the present invention at another viewing angle;

fig. 3 is a schematic structural view of a pressing mechanism in the present invention;

fig. 4 is a schematic structural view of the pressing mechanism of the present invention after the lifting beam driving structure and the upright post are omitted;

fig. 5 is a schematic structural view of the pressing mechanism of the present invention;

fig. 6 is a schematic view of a matching structure of a part of components of the pressing mechanism and the workbench according to the present invention;

fig. 7 is a schematic structural view of the turntable of the present invention;

fig. 8 is a schematic structural diagram of a carrier according to the present invention;

fig. 9 is a schematic structural diagram of a jacking mechanism in the present invention;

fig. 10 is a schematic structural diagram of a cell pressing mechanism in the present invention;

fig. 11 is the structural schematic diagram of the art plate storing mechanism of the present invention.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Conventional cell compression devices typically compress the cells by compressing the stacked cells by pressing them one-sided downward. In the extrusion process, the battery core is easily damaged due to uneven stress, so that the yield of the battery pack is reduced.

The utility model provides an electricity core extrusion device, it can realize extrudeing in the time of both sides about the electricity core for surface atress is balanced about the electricity core, thereby has reduced the pressure loss rate of electricity core remarkably.

As shown in fig. 1 to 2, the cell pressing device of the present invention at least includes a workbench 100, a cell bearing mechanism, a pressing mechanism 200, and a pressing mechanism 300. Wherein:

the battery cell bearing mechanism is arranged on the workbench 100, the battery cell bearing mechanism is used for bearing a battery cell, and an upward pressure channel is formed in the battery cell bearing mechanism.

The pressing mechanism 200 is disposed above the cell carrying mechanism, and the pressing mechanism 200 is configured to press the cell carried on the cell carrying mechanism downward.

The pressing mechanism 300 is disposed below the cell carrying mechanism, and the pressing mechanism 300 is configured to press the cell carried on the cell carrying mechanism upward through the pressing channel.

Through the cooperation of pushing down mechanism 200 and last pressure mechanism 300, the utility model discloses an extrusion in the time of both sides about electric core can be realized to electric core extrusion device to make electric core upper and lower surface atress balanced, reduced the pressure loss rate of electric core. The upper pressing mechanism 300 is matched with the lower pressing mechanism 200 through an upper pressing channel on the battery cell bearing mechanism to extrude the battery cell, so that the battery cell bearing mechanism is not stressed when the battery cell is extruded by the upper pressing mechanism 300 and the lower pressing mechanism 200.

As shown in fig. 3, in some embodiments, the pressing mechanism 200 includes two columns 201, a lifting beam 202, a lifting beam driving mechanism 203, and a lower pressing portion, which are disposed in pairs. Wherein: two ends of the lifting beam 202 are respectively connected to one upright column 201 in a sliding manner, the lower extrusion part is connected to the lifting beam 202 and located below the lifting beam 202, and a lower extrusion end face for extruding the battery cell is formed on the lower extrusion part. The driving end of the lifting beam driving mechanism 203 is connected with the lifting beam 202 to drive the lifting beam 202 to move up and down along the upright 201, so as to drive the lower extrusion part to move synchronously.

When needing to extrude the electric core that bears on electric core bearing mechanism, lifting beam actuating mechanism 203 drive lifting beam 202 downstream and drive extrusion portion synchronous downstream down, and extrusion portion supports and leans on to the up end of electric core and extrudees electric core down. After the cell is extruded, the lifting beam driving mechanism 203 drives the lifting beam 202 to drive the lower extrusion part to move upwards for resetting, and the lower extrusion part leaves the cell.

As shown in fig. 3, optionally, the pressing mechanism 200 further includes a pressure sensor 213 disposed between the driving end of the lifting beam driving mechanism 203 and the lifting beam 202, the pressure sensor 213 is connected to the control system of the lifting beam driving mechanism 203, the pressure sensor 213 is configured to acquire pressure information and transmit the pressure information to the control system of the lifting beam driving mechanism 203, and the lifting beam driving mechanism 203 drives the lifting beam 202 to move based on the pressure information to realize pressure adjustment.

Through setting up pressure sensor 213, can realize the control to pushing down the overdraft of mechanism 200, electric core extrusion in-process, when pressure is less than and predetermines the target pressure, lift crossbeam actuating mechanism 203 drive lift crossbeam 202 further moves down in order to increase pressure, guarantees the extrusion effect of extrusion portion to electric core down. When the pressure exceeds the preset target pressure, the lifting beam driving mechanism 203 controls the lifting beam 202 to stop moving downwards or upwards, so that the cell is prevented from being damaged by the pressure of the lower extrusion part.

In a specific embodiment, the battery cell module is formed by stacking a predetermined number of battery cells, so that if the stacking number of the battery cells is correct, the height of the upper end face of the stacked battery cells in the vertical direction is determined, and correspondingly, in the extrusion process, the target position of the lifting beam 202 in the vertical direction is determined.

Therefore, if the number of stacked cells is correct, the cell is pressed down by the pressing mechanism with a target pressure corresponding to the target position when the lifting beam 202 moves down to the target position. Based on this, optionally, the pressing mechanism 200 further includes a grating ruler 214 disposed on the upright 201, the grating ruler 214 is connected to the control system of the lifting beam driving mechanism 203, and the grating ruler 214 is configured to acquire position information of the lifting beam 202 in the vertical direction and send the acquired position information to the control system of the lifting beam driving mechanism 203.

The control system determines whether an error is stacked in the battery cell loaded on the battery cell loading mechanism based on the current actual pressure information acquired by the pressure sensor 213 and the current actual position information of the lifting beam 202 acquired by the grating scale 214.

For example, in some embodiments, after controlling the lifting beam 202 to move down to the target position, the control system first compares the actual position of the lifting beam 202 acquired by the optical grating 214 with the target position, and if the actual position of the lifting beam 202 is the same as the target position, then compares the current pressure acquired by the pressure sensor 213 with the target pressure: if the current pressure is equal to the target pressure, it indicates that the thickness of the stacked cell is reasonable, that is: the stacking number of the battery cells is correct; if the current pressure is greater than the target pressure, the thickness of the stacked battery cell is indicated to be too thick, namely: the number of the battery cells is more than the preset number; if the current pressure is less than the target pressure, it indicates that the thickness of the stacked cells is too thin, that is: the number of cells is less than a predetermined number.

For another example, in some other embodiments, after controlling the lifting beam 202 to move down to the target position during the pressing process, the control system first compares the current pressure obtained by the pressure sensor 213 with the target pressure, and if the current pressure is equal to the target pressure, compares the actual position of the lifting beam 202 obtained by the optical grating 214 with the target position: if the actual position is the same as the target position, the thickness of the stacked battery cell is reasonable, that is: the battery cell is stacked without errors; if the actual position is higher than the target position, the thickness of the stacked battery cell is indicated to be too thick, namely: the number of the battery cells is more than the preset number; if the actual position is lower than the target position, it indicates that the thickness of the stacked cells is too thin, that is: the number of cells is less than a predetermined number.

Optionally, when the number of the battery cells is more than or less than the predetermined number, the control system is configured to send out an alarm signal.

As shown in fig. 4, the lower pressing portion may alternatively include a base plate 204, a support plate 205, a support plate guide rod 206, and a support plate driving mechanism 207. Wherein: the base plate 204 is connected to the lifting beam 202 via a connecting rod 208, and a plurality of first lower pressing plates 209 are connected to the lower surface of the base plate 204. The supporting plate guide rod 206 is connected between the lifting beam 202 and the bottom plate 204, the supporting plate 205 is slidably connected to the supporting plate guide rod 206, and the lower surface of the supporting plate 205 is connected with a plurality of second lower pressing plates 210 penetrating through the bottom plate 204. The driving end of the support plate driving mechanism 207 is connected to the support plate 205 to drive the support plate 205 up and down.

When the support plate driving mechanism 207 drives the support plate 205 to move downward to a predetermined position, the lower end surface of the second lower platen 210 is flush with the lower end surface of the first lower platen 209 to form a lower pressing end surface of the lower pressing portion.

In some embodiments, the pressing process of the lower pressing part on the battery core is as follows:

in the initial state, the lower end surface of the second lower platen 210 is higher than the lower end surface of the first lower platen 209, that is: the second lower platen 210 is retracted upward into the gap between the first lower platens 209. In the process of extruding the battery core, under the driving of the lifting beam 202, the first lower pressing plate 209 firstly contacts the upper end surface of the battery core and extrudes the battery core downwards, so that the battery core is pressed tightly, and the battery core is prevented from being deviated and inclined. Then, the support plate driving mechanism 207 drives the support plate 205 to move downward, and the second lower pressing plate 210 abuts against the upper end face of the cell and continuously presses the cell downward together with the first lower pressing plate 209.

After the extrusion of the battery core is completed, the supporting plate driving mechanism 207 drives the supporting plate 205 to move upwards, the second lower pressing plate 210 leaves the upper end face of the battery core and retracts to the position between the first lower pressing plates 209, a gap is reserved between the first lower pressing plates 209 at the moment, the battery core after the extrusion is conveniently taken out by the manipulator, and after the battery core is taken out, the lifting beam 202 moves upwards to drive the whole lower extrusion part to move upwards for resetting.

As shown in fig. 4, the pressing mechanism 200 may further include a supporting plate limiting mechanism connected to the lifting beam 202 and located on both sides of the supporting plate 205, and the supporting plate limiting mechanism includes a first roller bearing 211 and a first roller bearing driving mechanism 212. The first roller bearing 211 abuts against the lower surface of the lifting beam 202, and the driving end of the first roller bearing driving mechanism 212 is connected to the first roller bearing 211 to drive the first roller bearing 211 to move toward or away from the supporting plate 205. When the supporting plate driving mechanism 207 drives the supporting plate 205 to move downwards to a predetermined position, the first roller bearing driving mechanism 212 drives the first roller bearing 211 to move towards the supporting plate 205, so that the first roller bearing 211 is supported between the lifting beam 202 and the supporting plate 205, and the friction force between the supporting plate limiting mechanism and the lower surface of the lifting beam 202 is reduced by adopting the first roller bearing 211, thereby facilitating the movement of the supporting plate limiting mechanism along the lifting beam 202.

During the process of pressing the battery cell, the supporting plate driving mechanism 207 drives the supporting plate 205 to move downwards, when the second lower pressing plate 210 abuts against the upper end face of the battery cell, the first roller bearing driving mechanism 212 drives the first roller bearing 211 to move towards the supporting plate 205, and the first roller bearing 211 enters the space between the lifting beam 202 and the supporting plate 205 and is supported between the lifting beam 202 and the supporting plate 205. So, in the extrusion process, second holding down plate 210 can last, support steadily and lean on the up end of electric core to the realization is to the last, stable extrusion of the up end of electric core, further promotes the extrusion effect.

As shown in fig. 5 to 6, in some embodiments, the pressing mechanism 300 includes a lifting guide mechanism 301, a lifting plate 302, a lifting plate driving mechanism 303, and an upper pressing portion. Wherein:

the lifting plate 302 is slidably connected to the lifting guide mechanism 301, the upper extrusion part is connected to the lifting plate 302 and located above the lifting plate 302, and an upper pressing end face for extruding the battery core is formed on the upper extrusion part.

The driving end of the lifting plate driving mechanism 303 is connected to the lifting plate 302 to drive the lifting plate 302 to move up and down along the lifting guide mechanism 301.

When the lifting plate driving mechanism 303 drives the lifting plate 302 to move upward to a predetermined position, the upper extrusion portion penetrates through an upper pressure channel on the cell bearing mechanism and extrudes the cell borne on the cell bearing mechanism upward.

When needs extrude the electric core of bearing on electric core bearing mechanism, lifter plate actuating mechanism 303 drive lifter plate 302 rebound and drive the synchronous rebound of extrusion portion, and at this in-process, the extrusion portion passes the electric core and bears the weight of the passageway of last pressure on the mechanism and support and lean on to the lower terminal surface of electric core to implement the extrusion to electric core. After the cell extrusion is completed, the lifting plate driving mechanism 303 drives the lifting plate 302 to drive the upper extrusion part to move downwards for resetting, and the upper extrusion part leaves the cell.

As shown in fig. 5, optionally, the lifting guide mechanism 301 includes a support 3011, lifting guide rails 3012 extending in the vertical direction are disposed on both sides of the support 3011, and a lifting slider 3013 capable of sliding up and down along the lifting guide rails 3012 is mounted on the lifting guide rails 3012. The lifting plate 302 is slidably connected to the support 3031 via two lifting sliders 3013. The lifting plate 302 is driven by the lifting plate drive mechanism 303 to move up and down along the lifting rail 3012. Through setting up two sets of lift guide rails 3012, lifting slide block 3013, can promote lifting guide mechanism 301 to the direction effect of lifter plate 302, realize the steady lift of lifter plate 302 on vertical direction.

Of course, the lifting guide mechanism 301 may also adopt other known structures, such as a guide rod arranged along the vertical direction, and the lifting plate 302 is slidably connected to the guide rod, and the lifting plate 302 moves up and down along the guide rod under the driving of the lifting plate driving mechanism 303.

As shown in fig. 5, the upper pressing portion optionally includes a lifting plate 304, a lifting plate driving mechanism 305, a connecting guide block 306, and an upper platen 307. Wherein: the connecting guide block 306 is connected to the elevating plate 302. The lifting plate 304 is slidably connected to the connecting guide block 306, and a plurality of upper press plates 307 are connected to the upper surface of the lifting plate 304. The drive end of the lift plate drive mechanism 305 is coupled to the lift plate 304 to drive the lift plate 304 up and down. When the lift plate driving mechanism 305 drives the lift plate 304 to move to a predetermined position, the upper end of the upper platen 307 protrudes upward out of the connection guide 306.

In some embodiments, the pressing process of the upper pressing part on the battery cell is as follows:

in an initial state, the upper end of the upper pressure plate 307 is located below the electric core bearing mechanism, and a certain distance exists between the upper end and the lower side of the electric core to be extruded. In the process of extruding the battery core, the lifting plate 302 is driven by the lifting plate driving mechanism 303 to ascend, the connection guide block 306 firstly contacts the battery core bearing mechanism and upwards jacks the battery core bearing mechanism, and the upper end surface of the battery core bearing mechanism upwards extrudes the battery core under the compression of the connection guide block 306. Then, the lifting plate driving mechanism 305 drives the lifting plate 304 to move upward, and the upper pressing plate 307 passes through the lower pressing channel to abut against the lower end surface of the cell under the driving of the lifting plate 304, and continuously presses the cell upward. At this time, the upper end surface of the cell carrying mechanism and the upper end surface of the upper pressing plate 307 together form an upper pressing end surface of the upper pressing portion.

After the electric core extrusion is completed, the jacking plate driving mechanism 305 drives the jacking plate 304 to move downwards, the upper pressing plate 307 leaves the lower end face of the electric core and retracts between the guide blocks 306, the space occupied by the upper pressing plate 307 during the electric core extrusion is vacated at the moment, the electric core after the extrusion is taken out by a manipulator, after the electric core is taken out by a standby manipulator, the lifting plate 302 descends under the driving of the lifting plate driving mechanism 303 to drive the whole upper extrusion part to move downwards for resetting.

In some embodiments, the battery cell carrying mechanism is provided with a positioning pin hole, and the upper end of the connecting guide block 306 is provided with a positioning pin 3061 matching with the pin hole. In the process that the connecting guide block 306 moves upwards, the positioning pin 3061 on the connecting guide block is pushed into the positioning pin hole on the battery core bearing mechanism.

Optionally, the pressing mechanism 300 further includes a lifting plate limiting mechanism connected to the lifting plate 302 and located at two sides of the lifting plate 304, and the lifting plate limiting mechanism includes a second roller bearing 308 and a second roller bearing driving mechanism 309. Wherein: a second roller bearing 308 abuts the upper surface of the lift plate 302 and a drive end of a second roller bearing drive mechanism 309 is coupled to the second roller bearing 308 to drive the second roller bearing 308 toward or away from the lift plate 304. When the lifting plate driving mechanism 305 drives the lifting plate 304 to move to a predetermined position, the second roller bearing driving mechanism 309 drives the second roller bearing 308 to move towards the lifting plate 304, so that the second roller bearing 308 is supported between the lifting plate 302 and the lifting plate 304, and similarly, the friction between the lifting plate limiting mechanism and the lifting plate 302 is reduced by rolling the second sub-bearing 308, which facilitates the lifting plate limiting mechanism to move along the lifting plate 302. In the process of pressing the battery core, the lifting plate driving mechanism 305 drives the lifting plate 304 to move upward, when the upper pressing plate 307 abuts against the lower end face of the battery core under the driving of the lifting plate 304, the second roller bearing driving mechanism 309 drives the second roller bearing 308 to move toward the lifting plate 304, and the second roller bearing 308 enters the space between the lifting plate 302 and the lifting plate 304 and is supported between the lifting plate 302 and the lifting plate 304. Thus, in the extrusion process, the upper pressure plate 307 can be ensured to continuously and stably abut against the lower end face of the battery cell, so that continuous and stable extrusion on the upper end face of the battery cell is realized.

As shown in fig. 6, optionally, the pressing mechanism 300 further includes a lifting plate limiting mechanism connected to the workbench 100 and located at a side of the lifting plate 302, the lifting plate limiting mechanism includes a wedge block 310 and a wedge block driving mechanism 311, wherein: wedge block 310 is slidably coupled to table 100 and a drive end of wedge block drive mechanism 311 is coupled to wedge block 310 to drive wedge block 310 toward or away from lifter plate 302. When lifter plate drive mechanism 303 drives lifter plate 302 to move upward to a predetermined position, wedge block drive mechanism 311 drives wedge block 310 to move toward lifter plate 302 such that wedge block 310 is supported between lifter plate 302 and table 100.

In the process of pressing the battery cell, the lifting plate 302 is driven by the lifting plate driving mechanism 303 to ascend, when the connection guide block 306 contacts the battery cell carrying mechanism, the wedge block driving mechanism 311 drives the wedge block 310 to move towards the lifting plate 302, and the wedge block 310 enters the space between the lifting plate 302 and the workbench 100 and is supported between the lifting plate 302 and the workbench 100. So, in the extrusion process, connect guide block 306 and can realize lasting, the stable extrusion of mechanism is born to electric core, and correspondingly, electric core bears the up end of mechanism and can realize lasting, the stable extrusion to electric core.

As shown in fig. 1, fig. 7 to fig. 8, optionally, the cell carrying mechanism includes a turntable 400 and a carrier 500, where:

the turntable 400 includes a turntable bearing plate 401 and a rotation driving mechanism 402 for driving the turntable bearing plate 401 to rotate, and a turntable through slot 403 penetrating through the turntable bearing plate 401 is disposed on the turntable bearing plate 401. Preferably, two ends of the turntable bearing plate 401 are respectively provided with a turntable through slot 403.

The carrier 500 is carried on the turntable bearing plate 401 and located above the turntable through slot 403, and preferably, two carriers 500 are provided, and the two carriers 500 are respectively located on the two turntable through slots 403 at two ends of the turntable bearing plate 401. The upper end of the bearing part 500 forms a battery cell bearing surface for bearing a battery cell, a plurality of bearing part through grooves 501 penetrating through the bearing part 500 are formed on the bearing part 500, and the bearing part through grooves 501 and the turntable through grooves 403 positioned below the bearing part are vertically communicated to form an upward pressing channel.

The turntable bearing plate 401 is driven by the rotation driving mechanism 402 to rotate so as to drive the bearing piece 500 to rotate, and a cell stacking station and a cell extrusion station are at least arranged on a rotation path of the bearing piece 500.

When the carrier 500 rotates to the cell stacking station, a plurality of cells are stacked on the carrier 500 that rotates to the cell stacking station.

When bearing piece 500 carries the battery cell that piles up and rotates to battery cell extrusion station, push down the up end of mechanism 200 extrusion battery cell downwards, push up mechanism 300 upwards extrudees the lower terminal surface of battery cell in step.

As described above, in some embodiments, the pressing mechanism 300 includes the lifting guide mechanism 301, the lifting plate 302, the lifting plate driving mechanism 303, and the upper pressing portion. An upper pressing portion lifting plate 304, a lifting plate driving mechanism 305, a connecting guide block 306, and an upper platen 307. In these embodiments, the process of pressing the cell by the upper pressing part is as follows:

the lifting plate 302 is driven by the lifting plate driving mechanism 303 to ascend, the connecting guide block 306 penetrates through the turntable through groove 403 on the turntable bearing plate 401 and presses the bearing piece 500 upwards, and the battery cell bearing surface of the bearing piece 500 presses the battery cell upwards under the pressing of the connecting guide block 306. Next, the lifting plate driving mechanism 305 drives the lifting plate 304 to move upward, and the upper pressing plate 307, driven by the lifting plate 304, passes through the through groove 501 of the carrier 500 and abuts against the lower end face of the cell, and then continuously presses the cell upward.

It can be seen that in these embodiments, the cell carrying surface of the carrier 500 and the upper end surface of the upper pressing plate 307 together form an upper pressing end surface of the upper pressing portion.

Due to the arrangement of the through groove 403 of the rotary table, when the cells are extruded by the pressing mechanism 300 and the pressing mechanism 200, the rotary table 400 is not stressed, and normal stacking of the cells at the cell stacking station on the rotary table 400 is not affected by the stress of the rotary table 400.

In order to realize piling up of the automation of electric core, it is optional, the utility model discloses still be provided with electric core stacking mechanism and be used for storing the electric core storage mechanism of electric core, electric core stacking mechanism piles up electric core and pile up electric core that will pick up one by one from electric core storage mechanism and pile up rotatory to electric core in proper order and pile up carrying on 500 of station to electric core.

Optionally, the utility model discloses still be provided with electric core stacking mechanism complex climbing mechanism 600. Pile up the in-process, the piece 500 is born in the jacking of climbing mechanism 600, piles up the in-process at electric core, can adjust in real time and bear the weight of the up end of the electric core that bears on piece 500 height in the vertical direction.

As shown in fig. 9, in some embodiments, the jacking mechanism 600 includes a jacking plate 601 and a jacking drive mechanism 602. The jacking plate 601 is connected to the driving end of the jacking driving mechanism 602. When the jacking driving mechanism 602 drives the jacking plate 601 to move upwards, the jacking plate 601 passes through the turntable through slot 403 on the turntable bearing plate 401 to contact the carrier 500 and jack the carrier 500 upwards, and the carrier 500 is lifted off the turntable bearing plate 401 by the jacking of the jacking plate 601 and moves upwards.

Optionally, a positioning pin 603 matched with the positioning pin hole at the bottom of the carrier 500 may be disposed on the upper end surface of the lifting plate 601, and in the lifting process, the positioning pin 603 on the lifting plate 601 is pushed into the positioning pin hole at the bottom of the carrier 500.

As shown in fig. 1, optionally, the present invention further includes a laser displacement sensor 700 disposed at the electric core stacking station and located above the carrier 500, wherein the laser displacement sensor 700 is connected to the control system of the jacking mechanism 600. The laser displacement sensor 700 is configured to acquire height information of a cell carried on the carrier 500 rotated to the cell stacking station, and transmit the acquired height information to the control system of the jacking mechanism 600. The control system of the jacking mechanism 600 controls the jacking mechanism to jack up based on the obtained height information, thereby ensuring that the upper end surface of the battery cell on the jacking bearing part 500 reaches a predetermined target position close to the battery cell to be stacked.

After the stacking of the battery cells is completed, the turntable bearing plate 401 drives the bearing piece 500 bearing the stacked battery cells to rotate to the battery cell extrusion station. Push down mechanism 200 and push up the extrusion of mechanism 300 cooperation completion to piling up good electric core down, wherein: the pressing mechanism 200 presses the upper end surface of the battery cell downward. The upper pressing mechanism 300 presses the lower end surface of the cell upward together with the cell carrying surface of the carrier 500.

Optionally, the utility model discloses still be provided with electric core unloading mechanism, electric core unloading mechanism will accomplish extruded electric core and take off and circulate to next procedure from carrier 500.

When both ends of the carousel loading plate 401 are provided with the carrier 500, when one carrier 500 rotates to the cell stacking station, the other carrier 500 rotates to the cell extrusion station. So, electric core piles up, electric core extrusion can accomplish in step, is showing to have promoted work efficiency.

Considering that when the turntable bearing plate 401 drives the bearing member 500 to rotate, the stacked battery cells borne on the bearing member 500 are easy to slide down. The utility model discloses still including setting up on carousel loading board 401 and being located the electric core hold-down mechanism 800 that holds carrier 500 side.

When the turntable bearing plate 401 drives the bearing part 500 bearing the battery cell to rotate, the battery cell pressing mechanism 800 is configured to press the battery cell bearing on the bearing part 500 onto the bearing part 500.

As shown in fig. 10, optionally, the cell pressing mechanism 800 includes a lifting bottom plate 801, a lifting bottom plate jacking mechanism 802, a pressing plate 803, and a pressing plate translation driving mechanism 804. Wherein: the lifting bottom plate jacking mechanism 802 is connected to the turntable bearing plate 401, the lifting bottom plate 801 is connected to the driving end of the lifting bottom plate jacking mechanism 802, and the lifting bottom plate jacking mechanism 802 drives the lifting bottom plate 801 to move up and down. The platen 803 is slidably coupled to the elevator base 801, and a drive end of the platen translation drive mechanism 804 is coupled to the platen 803 to drive the platen 803 toward or away from the carrier 500.

Before stacking the electric cores, the lifting bottom plate jacking mechanism 802 drives the lifting bottom plate 801 to move upwards to a high position, the pressing plate translation driving mechanism 804 drives the pressing plate 803 to move away from the bearing part 500, and the pressing plate 803 retracts to the surface of the lifting bottom plate 801. After the stacking of the electric cores is completed, the pressing plate translation driving mechanism 804 drives the pressing plate 803 to move towards the bearing part 500, so that the pressing plate 803 extends out of the lifting bottom plate 801, and the lifting bottom plate jacking mechanism 802 drives the lifting bottom plate 801 to move downwards until the pressing plate 803 is pressed on the upper end face of the stacked electric cores.

In some embodiments, a process plate is pre-positioned on the cell carrying surface of the carrier 500 before stacking the cells. After the electric core stacking is finished, another process plate is stacked on the upper end face of the stacked electric core. Therefore, as shown in fig. 2, optionally, the present invention further includes a process board loading mechanism and a process board storing mechanism 900 disposed on the working platform 100. The process board storage mechanism 900 is configured to store process boards, and the process board feeding mechanism is configured to place the process boards on the cell carrying surface of the carrier 500 or on the upper end surface of the stacked cells.

Optionally, as shown in fig. 11, the process board storage mechanism 900 includes a support frame 901, a carrying board 902 and a regulating board 903, wherein: the bearing plate 902 is connected on the support frame 901, and the regulating plate 903 is arranged on the bearing plate 902. The process plates are stacked on the bearing plate 902, and the structured plates 903 are driven by the structured air cylinder 904 to move so as to realize the arrangement of the process plates.

The invention has been described above with a certain degree of particularity and detail. It will be understood by those of ordinary skill in the art that the description of the embodiments is merely exemplary and that all changes that may be made without departing from the true spirit and scope of the present invention are intended to be within the scope of the present invention. The scope of the invention is defined by the appended claims rather than by the foregoing description of the embodiments.

Claims

1. The utility model provides a battery core extrusion device which characterized in that: electric core extrusion device includes that workstation, electric core bear the weight of the mechanism, push down the mechanism and go up the pressure mechanism, wherein:

the pressing mechanism is arranged above the battery cell bearing mechanism and is configured to press the battery cell loaded on the battery cell bearing mechanism downwards;

the upper pressing mechanism is arranged below the battery cell bearing mechanism and is configured to extrude the battery cell borne on the battery cell bearing mechanism upwards through the upper pressing channel.

2. The cell extrusion apparatus of claim 1, wherein the pressing mechanism includes a column, a lifting beam driving mechanism, a pressing portion, and a pressure sensor, wherein:

the upright posts are arranged on the workbench in pairs;

two ends of the lifting cross beam are respectively connected to one upright column in a sliding manner;

the lower extrusion part is connected to the lifting cross beam and positioned below the lifting cross beam, and a lower extrusion end face for extruding the battery cell is formed on the lower extrusion part;

the driving end of the lifting beam driving mechanism is connected with the lifting beam to drive the lifting beam to move up and down along the upright column so as to drive the lower extrusion part to move synchronously;

the pressure sensor is arranged between the driving end of the lifting beam driving mechanism and the lifting beam, the pressure sensor is connected with a control system of the lifting beam driving mechanism, and the pressure sensor is used for acquiring pressure information and transmitting the pressure information to the control system of the lifting beam driving mechanism.

3. The cell pressing apparatus of claim 2, wherein the lower pressing portion includes a bottom plate, a support plate guide rod, and a support plate driving mechanism, wherein:

the bottom plate is connected to the lifting cross beam through a connecting rod, and the lower surface of the bottom plate is connected with a plurality of first lower pressing plates;

the supporting plate guide rod is connected between the lifting cross beam and the bottom plate, the supporting plate is connected to the supporting plate guide rod in a sliding mode, and the lower surface of the supporting plate is connected with a plurality of second lower pressing plates;

the driving end of the supporting plate driving mechanism is connected with the supporting plate to drive the supporting plate to move up and down, and the supporting plate driving mechanism drives the supporting plate to move down until the lower end face of the second lower pressing plate is flush with the lower end face of the first lower pressing plate to form the lower pressing end face.

4. The cell extrusion apparatus of claim 3, wherein the pressing mechanism further comprises a support plate limiting mechanism connected to the lifting beam and located on two sides of the support plate, the support plate limiting mechanism comprising a first roller bearing and a first roller bearing driving mechanism, wherein:

the first roller bearing is attached to the lifting cross beam, and the driving end of the first roller bearing driving mechanism is connected with the first roller bearing so as to drive the first roller bearing to move towards or away from the supporting plate;

when the support plate driving mechanism drives the support plate to move downwards to a preset position, the first roller bearing driving mechanism drives the first roller bearing to move towards the support plate, so that the first roller bearing is supported between the lifting cross beam and the support plate.

5. The electric core extrusion device of claim 2, wherein the pressing mechanism further comprises a grating ruler disposed on the column, the grating ruler is connected to the control system of the lifting beam driving mechanism, and the grating ruler is configured to acquire position information of the lifting beam in the vertical direction and send the acquired position information to the control system of the lifting beam driving mechanism.

6. The cell pressing device according to claim 1, wherein the pressing mechanism includes a lifting guide mechanism, a lifting plate driving mechanism, and an upper pressing portion, wherein:

the lifting plate is connected to the lifting guide mechanism in a sliding manner;

the upper extrusion part is connected to the lifting plate and positioned above the lifting plate, and an upper pressing end face for extruding the battery cell is formed on the upper extrusion part;

the driving end of the lifting plate driving mechanism is connected with the lifting plate so as to drive the lifting plate to move up and down along the lifting guide mechanism;

when the lifting plate driving mechanism drives the lifting plate to move upwards, the upper extrusion part penetrates through the upper pressure channel and extrudes the battery cell loaded on the battery cell loading mechanism upwards.

7. The cell extrusion apparatus of claim 6, wherein the upper extrusion portion comprises a lifting plate, a lifting plate driving mechanism, a connection guide block, and an upper press plate, wherein:

the connecting guide block is connected to the lifting plate;

the jacking plate is connected to the connecting guide block in a sliding manner, and the upper surface of the jacking plate is connected with a plurality of upper pressing plates;

and the driving end of the jacking plate driving mechanism is connected with the jacking plate so as to drive the jacking plate to move up and down.

8. The cell extrusion apparatus of claim 7, wherein the pressing mechanism further comprises a lifting plate limiting mechanism connected to the lifting plate and located on two sides of the lifting plate, the lifting plate limiting mechanism comprising a second roller bearing and a second roller bearing driving mechanism, wherein:

the second roller bearing abuts against the lifting plate, and the driving end of the second roller bearing driving mechanism is connected with the second roller bearing so as to drive the second roller bearing to move towards or away from the lifting plate;

when the jacking plate driving mechanism drives the jacking plate to move upwards to a preset position, the second roller bearing driving mechanism drives the second roller bearing to move towards the jacking plate, so that the second roller bearing is supported between the lifting plate and the jacking plate.

9. The cell extrusion device of claim 6, wherein the pressing mechanism further comprises a lifting plate limiting mechanism connected to the workbench and located at a side of the lifting plate, the lifting plate limiting mechanism comprising a wedge block and a wedge block driving mechanism, wherein:

the wedge-shaped block is connected to the workbench in a sliding mode, and the driving end of the wedge-shaped block driving mechanism is connected with the wedge-shaped block so as to drive the wedge-shaped block to move towards or away from the lifting plate;

when the lifting plate is driven by the lifting plate driving mechanism to move upwards to a preset position, the wedge block driving mechanism drives the wedge block to move towards the lifting plate, so that the wedge block is supported between the lifting plate and the workbench.

10. The cell extrusion device of claim 1, wherein the cell carrying mechanism comprises a turntable and a carrier, and the cell extrusion device further comprises a cell stacking mechanism, wherein:

the turntable comprises a turntable bearing plate and a rotary driving mechanism for driving the turntable bearing plate to rotate, and a turntable through groove penetrating through the turntable bearing plate is formed in the turntable bearing plate;

the bearing piece is arranged on the turntable bearing plate and positioned above the turntable through groove, a battery cell bearing surface for bearing a battery cell is formed at the upper end of the bearing piece, a plurality of bearing piece through grooves penetrating through the bearing piece are formed in the bearing piece, and the bearing piece through grooves and the turntable through groove are vertically communicated to form the upward pressing channel;

the carousel loading board is rotatory in order to drive under the drive of rotary driving mechanism it is rotatory to hold carrier, it piles up station and electric core extrusion station to be equipped with electric core at least on the rotatory route that holds carrier, electric core pile up the mechanism and is configured as with electric core pile up to rotatory extremely electric core piles up the station, push down the mechanism and is configured as downwards the extrusion bear in rotatory to electric core extrusion station hold the epaxial electric core of carrier, push up the mechanism and is configured as upwards the extrusion bear in rotatory to electric core extrusion station hold the electric core on the carrier.

11. The cell extrusion apparatus of claim 10, further comprising a jacking mechanism and a laser displacement sensor, wherein:

the jacking mechanism is arranged at the cell stacking station and positioned below the rotary table, and is configured to jack up the cell to the bearing piece of the cell stacking station through the rotary table through groove so as to drive the cell borne on the bearing piece to jack up;

the laser displacement sensor is arranged at the cell stacking station and located above the bearing piece, the laser displacement sensor is connected with the control system of the jacking mechanism, the laser displacement sensor is configured to acquire height information of a cell on the bearing piece, which is borne on the cell stacking station in a rotating mode, and transmit the acquired height information to the control system of the jacking mechanism, and the control system of the jacking mechanism controls the jacking mechanism to jack up the bearing piece upwards based on the acquired height information.

12. The cell pressing apparatus of claim 10, further comprising a cell pressing mechanism disposed on the turntable bearing plate and located at a side of the bearing member, wherein when the turntable bearing plate drives the bearing member to rotate, the cell pressing mechanism is configured to press a cell carried on the bearing member against the bearing member;

electric core extrusion device still includes technology board storage mechanism and technology board feed mechanism, wherein: the process board storage mechanism is used for storing process boards, and the process board feeding mechanism is configured to pick up process boards from the process board storage mechanism and place the picked up process boards on a battery cell carrying surface of the bearing piece rotating to the battery cell stacking station or stacked on the upper end surface of the stacked battery cells.