CN114335755B - Square electricity core forming device - Google Patents
Square electricity core forming device Download PDFInfo
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- CN114335755B CN114335755B CN202210255046.2A CN202210255046A CN114335755B CN 114335755 B CN114335755 B CN 114335755B CN 202210255046 A CN202210255046 A CN 202210255046A CN 114335755 B CN114335755 B CN 114335755B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
A square battery cell forming device comprises a bearing base, a stretching assembly and two clamping assemblies, wherein the two clamping assemblies are movably arranged on the bearing base in a mirror image opposite mode along a first direction and are used for clamping the peripheral walls of two sides of a circular battery cell in the radial direction of the circular battery cell; tensile component is configured to can follow the second direction and get in and out between the subassembly from two clamps to order about two clamps and get the subassembly and keep away from along the first direction back of the body, thereby stretch into square electric core with circular electric core. The cooperation of getting subassembly and tensile subassembly is got to the utilization, directly uses circular electric core as the technology processing object, through carrying out tensile processing to circular electric core, warp its conversion into square electric core, can avoid adopting square book needle to convolute the serial drawback that the square electric core of preparation exists to effectively improve the production efficiency of square electric core, and created the condition for improving the coiling efficiency of electric core coiling equipment.
Description
Technical Field
The invention relates to the field of battery production equipment, in particular to a square battery cell forming device.
Background
With the rapid development of new energy technology, the application of lithium batteries is also more and more extensive. In the case of a battery cell of a lithium battery, the battery cell is generally formed by winding and combining positive foil paper, negative foil paper, separator paper and the like in a specific layer sequence; the battery core is divided into a square battery core and a round battery core according to different shapes of batteries.
At present, square coils are mostly adopted in the industry to perform winding molding on square battery cells, in particular to ultra-large capacity lithium battery cells; the linear speed change of the square winding needle is large in the winding process, so that the acceleration change is large, and the driving motor of the winding needle is easily impacted by the excessive acceleration; therefore, the square winding needle cannot realize high-speed winding, and the linear speed of the square winding needle is usually required to be controlled to be about 1.5m/s, which seriously restricts the winding efficiency of the square lithium battery winding equipment or the production efficiency of the square battery cell.
Disclosure of Invention
The invention mainly solves the technical problem of providing a square battery cell forming device which can convert and deform a round battery cell into a square battery cell so as to achieve the purpose of improving the production efficiency.
An embodiment provides a square electric core forming device, includes:
a load-bearing base;
the clamping assemblies are used for clamping the peripheral wall of the circular battery cell from the radial direction of the circular battery cell, and the two clamping assemblies are movably arranged on the bearing base in a mirror image opposite mode along a first direction; and
the stretching assembly is used for driving the two clamping assemblies to be away from each other along the first direction so as to stretch the round battery cell into the square battery cell, and the stretching assembly is configured to be capable of moving along the second direction orthogonal to the first direction so as to enter and exit between the two clamping assemblies.
In one embodiment, the grasping assembly comprises:
the bearing part is movably arranged on the bearing base and is used for abutting against the inner side of the peripheral wall of the round battery cell;
the pre-tightening piece is arranged in parallel with the pressure-bearing piece along a first direction and is used for abutting against the outer side of the peripheral wall of the round battery cell; and
the clamping driving piece is connected between the pressure bearing piece and the pre-tightening piece and used for driving the pressure bearing piece and the pre-tightening piece to approach to each other and move away from each other along a first direction so as to clamp the peripheral wall of the circular battery cell when the pressure bearing piece and the pre-tightening piece approach to each other;
the bearing parts of the two clamping assemblies face each other along a first direction, and the stretching assembly is configured to be capable of entering and exiting from between the bearing parts of the two clamping assemblies.
In one embodiment, the pressure bearing member comprises:
the first supporting seat is movably arranged on the bearing base;
the pressure bearing rod is used for abutting against the inner side of the peripheral wall of the round battery cell and extends along the third direction to be arranged on one side of the first supporting seat in the third direction; wherein the first direction, the second direction and the third direction are mutually orthogonal; and
the drawing component is arranged between the two clamping components, and the following wheel is used for sliding and propping against the surface of the drawing component in the first direction when the drawing component gradually extends between the two clamping components.
In one embodiment, the pre-tightening piece comprises a second supporting seat and a pre-tightening rod, and the pre-tightening rod is arranged on one side of the second supporting seat in the third direction in a parallel arrangement mode with the pressure-bearing rod and is used for abutting against the outer side of the peripheral wall of the round battery cell;
the clamping driving piece comprises a driving part and a guide part, the body of the driving part is fixed on one of the first supporting seat and the second supporting seat, the power end of the driving part is fixed on the other of the first supporting seat and the second supporting seat, the guide part extends along the first direction and is fixedly arranged on the first supporting seat, and the second supporting seat is slidably arranged on the guide part.
In one embodiment, the stretching assembly comprises a stretching driving member and a guiding member, wherein the stretching driving member is connected between the bearing base and the guiding member and is used for driving the guiding member to move in and out from between the two clamping assemblies along the second direction; the guide is configured to: when the guide piece gradually moves into the space between the two clamping assemblies, the two clamping assemblies can be driven to back and away.
In one embodiment, the guide comprises:
the stretching driving piece is connected between the bearing base and the positioning seat; and
the two guide seats are adjustably arranged on the positioning seat in a mirror image opposite mode along the first direction, and inclined surface structures are arranged on the two opposite sides of the two guide seats and are used for enabling the clamping assemblies on the corresponding sides to be in sliding butting and holding when the guide seats move into the space between the two clamping assemblies.
In one embodiment, the guide piece further comprises two first adjusting pieces, and the two first adjusting pieces are matched with the two guide bases in a one-to-one correspondence manner; the first adjusting piece is connected between the guide seat and the positioning seat and used for positioning and fixing the guide seat on the positioning seat.
In one embodiment, the clamping device further comprises two limiting assemblies, the two limiting assemblies and the two clamping assemblies are arranged in a one-to-one corresponding matching mode, and the limiting assemblies are used for driving the corresponding clamping assemblies to move towards the other clamping assembly when the stretching assembly moves out of the two clamping assemblies, so that the two clamping assemblies can approach each other in the first direction.
In one embodiment, the stop assembly comprises:
the limiting seat is arranged on the bearing base and is arranged on one side, back to the other clamping component, of the corresponding clamping component along the first direction; and
the elastic piece is arranged between the limiting seat and the clamping assembly corresponding to the limiting seat, and one end of the elastic piece is connected with the limiting seat while the other end of the elastic piece is connected with the clamping assembly.
In one embodiment, the limiting assembly further comprises a second adjusting member, and the second adjusting member is connected between the bearing base and the limiting seat and used for adjustably positioning and fixing the limiting seat on the bearing base.
The square battery cell forming device according to the embodiment comprises a bearing base, a stretching assembly and two clamping assemblies, wherein the two clamping assemblies are movably arranged on the bearing base in a mirror image opposite mode along a first direction and are used for clamping the peripheral walls of two sides of a circular battery cell in the radial direction of the circular battery cell; tensile component is configured to can follow the second direction and get in and out between the subassembly from two clamps to order about two clamps and get the subassembly and keep away from along the first direction back of the body, thereby stretch into square electric core with circular electric core. The cooperation of getting subassembly and tensile subassembly is got to the utilization, directly uses circular electric core as the technology processing object, through carrying out tensile processing to circular electric core, warp its conversion into square electric core, can avoid adopting square book needle to convolute the serial drawback that the square electric core of preparation exists to effectively improve the production efficiency of square electric core, and created the condition for improving the coiling efficiency of electric core coiling equipment.
Drawings
Fig. 1 is a schematic structural assembly diagram (one) of a molding apparatus according to an embodiment.
FIG. 2 is a schematic structural assembly diagram of a molding apparatus according to an embodiment (II).
FIG. 3 is a schematic view (III) of the structural assembly of the molding apparatus according to an embodiment.
FIG. 4 is a schematic plan view showing the relationship between the relevant parts in a ready state of the molding apparatus according to an embodiment.
Fig. 5 is a schematic plan view of the forming device according to an embodiment in a material receiving state.
FIG. 6 is a schematic view showing a planar relationship between the associated parts in a stretched state in the molding apparatus according to the embodiment.
FIG. 7 is a schematic plan view of the forming apparatus of an embodiment showing the relationship between the relevant parts in the unloading state.
In the figure:
10. a gripping assembly; 10a, a guide slide block; 11. a pressure-bearing member; 11a, a first supporting seat; 11b, a pressure-bearing rod; 11c, a follower wheel; 12. pre-tightening piece; 12a, a second support base; 12b, pre-tightening rods; 13. a gripping drive; 13a, a driving part; 13b, a guide part;
20. a stretching assembly; 21. stretching the driving member; 22. a guide member; 22a, a positioning seat; 22b, a guide seat; 22c, a first adjustment member;
30. a limiting component; 31. a limiting seat; 32. an elastic member; 33. a second adjustment member;
40. a load-bearing base; 41. a guide slide rail; A. a circular cell; B. and (5) a square battery cell.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).
The terms "first direction", "second direction" and "third direction" used herein are three mutually orthogonal directions defined based on the structure and action principle of the square cell forming device, and are used for distinguishing the orientation relationship between the described objects; for example, if the square cell forming device is in a general application environment space, the "first direction" may refer to a left-right direction, and the "second direction" may refer to an up-down direction; accordingly, the "third direction" may then refer to the front-to-back direction.
According to the square battery cell forming device, the round battery cell is directly used as a process treatment object, and the round battery cell is subjected to stretching treatment and is converted into the square battery cell, so that the production efficiency of the square battery cell can be improved; during specific implementation, the forming device and the round winding needle can be matched for application to construct winding equipment or a winding production line for forming the square battery cell, so that the defects of the square winding needle are effectively avoided, and the winding efficiency is greatly improved.
Referring to fig. 1 to 7, an embodiment of a square battery cell forming apparatus (hereinafter referred to as forming apparatus) includes a clamping assembly 10, a stretching assembly 20, a limiting assembly 30 and a bearing base 40; the following are described separately.
Referring to fig. 1 to 7, the clamping assembly 10 is substantially a clamp body or a clamp structure, and is mainly used for clamping and fixing a circular battery cell a by clamping a peripheral wall of the circular battery cell a in a diameter direction of the circular battery cell a; the two clamping assemblies 10 are two in total, the two clamping assemblies 10 are oppositely arranged in a mirror image manner along a first direction (i.e. a left-right direction) (it can also be understood that the two clamping assemblies 10 are mutually symmetrical structures or mutually mirror image structures), and the two clamping assemblies 10 are arranged on the bearing base 40 in a manner of being capable of moving close to or away from each other along the first direction on the bearing base 40, so that the two clamping assemblies 10 can respectively clamp and fix the peripheral walls of the left side and the right side of the circular battery core a; in practical implementation, a guiding slide rail 41 may be disposed on the carrying base 40 to extend along the first direction, and correspondingly, a guiding slider 10a is disposed on each of the clamping assemblies 10, and the guiding slider 10a is slidably mounted on the guiding slide rail 41, so that the clamping assemblies 10 can move linearly on the carrying base 40 in a stable and directional manner by virtue of the cooperation between the guiding slide rail 41 and the guiding slider 10 a.
In one embodiment, referring to fig. 1 to 7, the gripping assembly 10 includes a pressure bearing member 11, a preload member 12, and a gripping drive member 13; the pressure-bearing part 11 and the pre-tightening part 12 are arranged in parallel along the first direction, and both have preset lengths in the third direction (namely, the front and back direction), and the preset lengths are preferably equal to or greater than the axial length of the round battery core A; when the round battery core a is loaded on the clamping assembly 10 along the third direction or the axial direction, the pressure-bearing member 11 is located inside the round battery core a, so that the pressure-bearing member 11 is used to support the inner side of the peripheral wall of the round battery core a; the pre-tightening piece 12 is positioned outside the circular battery cell A, so that the pre-tightening piece 12 is used for abutting against the outer side of the peripheral wall of the circular battery cell A; the clamping driving member 13 is disposed between the pressure-bearing member 11 and the pre-tightening member 12, and is mainly used for adjusting a distance between the pressure-bearing member 11 and the pre-tightening member 12, so that the distance between the two members can be adapted to the thickness of the circumferential wall of the circular battery cell a, and the pre-tightening member 12 is driven to move closer to the pressure-bearing member 11 by power output by the clamping driving member 13, thereby clamping and fixing the circumferential wall of the circular battery cell a. It should be noted that, in terms of the structural condition between the two gripping assemblies 10, the bearing members 11 of the two are facing each other along the first direction.
In specific implementation, the clamping driving member 13 may adopt power devices such as an air cylinder, a motor and a screw rod mechanism which can output linear power, the body of the clamping driving member 13 is fixed to the pre-tightening member 12, and the power output end is coupled to the pressure-bearing member 11; the end of the bearing member 11 in the third direction can be slidably mounted on the carrying base 40 by the guiding sliding block 10 a; when the side of the pressure-bearing member 11 opposite to the preload member 12 is blocked (e.g., by the tension assembly 20), the gripping driving member 13 can be controlled to output power to drive the preload member 12 away from the pressure-bearing member 11, so that the distance between the two members can be adapted to (e.g., greater than or equal to) the wall thickness of the round cell a; on the contrary, the pressure-bearing member 11 is driven to approach the pre-tightening member 12, so that the pressure-bearing member 11 receives the force output by the gripping driving member 13 and transmitted by the pre-tightening member 12 and the circular cell a to clamp the peripheral wall of the circular cell a.
Referring to fig. 1 to fig. 3, the stretching assembly 20 is mainly configured to drive the two clamping assemblies 10 to move away from each other along a first direction, so as to stretch the circular battery cell a from two symmetrical sides of the diameter direction of the circular battery cell a in a process that the two clamping assemblies 10 gradually move away from each other, so that the radial cross-sectional shape of the circular battery cell a is gradually transformed into an oval shape, thereby finally forming the square battery cell B. The stretching assembly 20 is mounted on the bearing base 40 and is arranged at a position close to the position between the ends of the two clamping assemblies 10 along the third direction; at least a portion of the stretching assembly 20 is configured to move in a second direction (i.e., up and down) to allow the functional portion to pass in and out between the two grasping assemblies 10, thereby forcing the two grasping assemblies 10 apart as the functional portion of the stretching assembly 20 is gradually moved into between the two grasping assemblies 10. In particular implementations, the functional portion of the stretching assembly 20 may be configured to approximate a wedge configuration, such as a cross-sectional shape in a third direction perpendicular plane that is substantially isosceles trapezoid; in this way, it is ensured that the two gripping assemblies 10 are able to act synchronously under the action of the stretching assembly 20. Of course, the stretching assembly 20 may be configured to move in and out of the space between the two gripping assemblies 10 in the third direction (i.e., along the axial direction of the circular battery cell a) without considering the overall structural size and complexity of the molding apparatus.
In one embodiment, referring to fig. 1-3, the stretching assembly 20 includes a stretching driver 21 and a guide 22; wherein, the stretching driving member 21 can adopt linear power devices such as an air cylinder, a motor and a screw rod mechanism, etc., and the body of the stretching driving member 21 is fixedly arranged on the bearing base 40 and is distributed at a position close to the end of the clamping assembly 10 along the third direction; the power end of the tension driving member 21 is coupled to the guiding member 22, so that the guiding member 22 is driven to move linearly in the second direction by the tension driving member 21; the guide 22, which is a functional part of the stretching assembly 20 for driving the gripping assemblies 10 to move, has an overall profile shape of an approximately isosceles trapezoid wedge structure, and when the guide 22 is gradually moved into between the two gripping assemblies 10 (specifically, the ends of the two pressure-bearing members 11 facing each other) under the action of the stretching driving member 21, the two gripping assemblies 10 are urged to move away from each other, so that the round cell a is finally stretch-formed into the square cell B.
Referring to fig. 1 and fig. 2, the limiting assembly 30 is mainly used for limiting a moving stroke of the clamping assembly 10, specifically, when the circular battery cell a is stretched and the two clamping assemblies 10 are away from each other to a certain distance, the limiting assembly 30 can block the clamping assembly 10 from moving further, so as to prevent the two clamping assemblies 10 from overstretching the circular battery cell a due to an excessively large distance between the two clamping assemblies 10 under the action of the stretching assembly 20, and prevent the circular battery cell a or the molded square battery cell B from being damaged or even broken. The number of the limiting assemblies 30 is two, and the limiting assemblies are matched with the two clamping assemblies 10 in a one-to-one correspondence manner; in other words, in the case of one of the gripping assemblies 10, the corresponding limiting assembly 30 is arranged on the side of the gripping assembly 10 facing away from the other gripping assembly 10.
In one embodiment, referring to fig. 2, the position-limiting assembly 30 includes a position-limiting seat 31 and an elastic member 32; wherein, the limiting seat 31 is installed on the bearing base 40 and is located at one side of the corresponding clamping component 10 back to the other clamping component 10; the elastic member 32 can be a part formed by a spring, an elastic column and the like having a certain elastic deformation, one end of the elastic member 32 is connected with the limiting seat 31, the other end of the elastic member is connected with the corresponding clamping assembly 10 (specifically, the pressure-bearing member 11), and the specific connection mode can be a detachable connection mode such as an abutting connection mode or other non-detachable connection modes. On one hand, the elastic action of the elastic member 32 can prevent the clamping assembly 10 from colliding with the limiting seat 31 due to hard contact when moving towards the limiting seat 31 (i.e. the two clamping assemblies 10 move away from each other), and on the other hand, a certain elastic force can be applied to the clamping assembly 10 towards the stretching assembly 20 to ensure that the clamping assembly 10 (specifically, the pressure-bearing member 11) can be in close contact with the side surface of the guide member 22, thereby enhancing the guiding driving effect of the guide member 22 on the two clamping assemblies 10. In other embodiments, the position limiting component 30 can be omitted according to actual requirements.
Based on the molding apparatus of the foregoing embodiment, the following method may be followed to stretch the circular cells a into the square cells B.
In a preparation state, according to the radial size of the circular battery cell a to be blanked, the tensile driving member 21 drives the guide member 22 to move into between the pressure bearing members 11 of the two clamping assemblies 10 until the distance between the two clamping assemblies 10 reaches a preset distance, where the preset distance can be understood as: when the clamping assembly 10 is placed in the circular battery cell a, the two pressure-bearing pieces 11 are just in contact with the left and right inner walls of the circular battery cell a, respectively. Then, by means of the blocking effect of the guide member 22 on the pressure-bearing member 11, the clamping driving member 13 can output power and drive the preload member 12 to move away from its corresponding pressure-bearing member 11, so as to ensure that the distance between the preload member 12 and the pressure-bearing member 11 is equal to or greater than the radial wall thickness of the circular battery cell a (see fig. 4).
In a material receiving state, after the round battery cell A is wound and formed, the forming device is driven to be integrally pushed to the round battery cell A along the axial direction of the round battery cell A by means of a related power executing mechanism, so that the two clamping assemblies 10 are inserted into the round battery cell A; at this time, the two pressure-bearing parts 11 are all inserted into the circular battery core a and are respectively contacted and abutted with the inner walls of the two radial sides of the circular battery core a, and the two pre-tightening parts 12 are respectively located on the radial outer sides of the circular battery core a. Then, the clamping driving member 13 is actuated to drive the preload members 12 to move toward the corresponding pressure receiving members 11, so as to clamp and fix the left and right peripheral walls of the circular cell a by reducing the distance between the preload members 12 and the pressure receiving members 11 (see fig. 5).
Thirdly, in a stretching state, after the round battery cell A is clamped and fixed, the forming device is driven to integrally move by means of a related power execution structure so as to pull the round battery cell A out of the round winding needle; the stretching driving member 21 continues to drive the guiding member 22 to move in from between the two pressure-bearing members 11, so as to drive the two clamping assemblies 10 to move away from each other integrally, so as to stretch the circular cell a until the circular cell a is stretched to the desired shape of the square cell B (see fig. 6).
In the unloading state, the clamping driving member 13 moves to drive the pre-tightening member 12 to move away from the pressure-bearing member 11 (at this time, the guide member 22 can also be controlled to move out from between the two pre-tightening members 12), so as to loosen or release the formed square battery cell B (see fig. 7), and the square battery cell B is unloaded from the forming device by using the relevant unloading mechanism, and is finally transferred to a working position such as a hot-pressing station for subsequent processing.
It should be noted that the dotted line with an arrow in fig. 4, 5, and 7 represents the moving direction of the preload member 12, the chain line with an arrow in fig. 6 and 7 represents the moving direction of the whole gripping assembly 10, and the chain line in fig. 4 represents the circular battery cell a to be blanked.
In one embodiment, referring to fig. 1 to 3, the bearing member 11 includes a first bearing seat 11a, a bearing rod 11b and a follower wheel 11 c; wherein, the first supporting seat 11a is used as a structural connection carrier between the bearing member 11 and the bearing base 40, and a guiding slide block 10a can be arranged at the end (i.e. bottom end) of the first supporting seat 11a in the second direction, so that the bearing member 11 can be installed on the bearing base 40 in a manner of moving linearly on the bearing base 40 along the first direction; the driving member 13 is disposed between the first supporting seat 11a and the pre-tightening member 12, and the elastic member 32 is connected between the first supporting seat 11a and the stopper seat 31.
The pressure bearing rod 11b extends along the third direction and is arranged on one side of the top end of the first supporting seat 11a and is mainly used for abutting against the inner side of the peripheral wall of the round battery cell A; the pressure-bearing rod 11b can adopt a cylindrical structure with a circular cross section, and can also adopt a cylindrical structure with a rectangular cross section and the like; the follower wheel 11c is rotatably mounted on a side of the first support base 11a facing away from the pressure rod 11 b.
In this way, in the case of the two gripping assemblies 10, by means of the respective following wheels 11c, a structural part cooperating with the guide 22 can be established between the two bearing members 11, the guide 22 being able to move in and out from between the two following wheels 11c under the driving action of the tensile driving member 21, so as to urge the two gripping assemblies 10 towards and away from each other; because the pulley type guiding structure is adopted between the guiding piece 22 and the follow-up wheel 11c, the guiding piece 22 can smoothly move between the two clamping assemblies 10 while ensuring the guiding driving action of the guiding piece 22 on the clamping assemblies 10, and the problems of clamping stagnation and the like are avoided.
In other embodiments, the follower wheel 11c may be omitted, and the guide member 22 may perform a guiding driving function on the clamping assembly 10 by providing a slope structure adapted to the guide member 22 on the surface of the two first supporting seats 11a facing each other, so as to establish a wedge-shaped opening between the two first supporting seats 11a for the guide member 22 to move into, and by using the abutting relationship between the wedge-shaped opening and the corresponding surface of the guide member 22.
In one embodiment, referring to fig. 1-3, preload element 12 includes a second bearing block 12a and a preload rod 12b, and clamp drive 13 includes a drive portion 13a and a guide portion 13 b. The driving portion 13a may adopt a linear power output device such as an air cylinder, a body of the driving portion 13a is fixed to the second supporting seat 12a, and a power output end of the driving portion 13a is coupled to the first supporting seat 11 a. The guide part 13b is of a shaft rod type structure and is arranged on one side of the first support seat 11a, which faces away from the guide piece 22, in an extending manner along the first direction; one end of the guide portion 13b is fixed to the first support base 11a, and the other end thereof is provided to penetrate the second support base 12a, that is, the guide portion 13b is slidably fitted to the second support base 12 a. The pre-tightening rod 12b is arranged in an extending manner along the third direction and fixed on one side of the top end of the second supporting seat 12a, and is mainly used for abutting against the outer side of the peripheral wall of the round battery cell A; the pre-tightening rod 12b and the pressure-bearing rod 11b are arranged in parallel, and the specific structure is similar to that of the pressure-bearing rod 11b, and is not described in detail herein.
Therefore, the guiding part 13B provides guiding support for the pre-tightening piece 12 to approach or move away from the pressure-bearing part 11 in opposite directions, and the power output by the driving part 13a is used for controlling the action of the pre-tightening piece 12 so as to realize clamping and fixing of the peripheral wall of the round battery cell A or loosening and releasing of the side wall of the molded square battery cell B.
In other embodiments, the driving portion 13a may adopt a motor and is connected to the second supporting seat 12a in a screw transmission manner; at this time, the guide portion 13b can be used to guide the movement of the preload member 12, and the second bearing seat 12a can be prevented from rotating along with the power shaft of the motor, so that the preload member 12 can only perform linear translational motion.
In one embodiment, referring to fig. 1 and 2, the guiding element 22 includes a positioning seat 22a and two guiding seats 22 b; wherein, the positioning seat 22a is fixed with the tensile driving member 21 (for example, fixedly connected to the power output end of the tensile driving member 21), the two guiding seats 22b are arranged on the positioning seat 22a in a mirror image opposite manner along the first direction, and the two guiding seats 22b are adjustably mounted on the positioning seat 22 a; the two sides of the two guide seats 22b, which are opposite to each other, are provided with inclined plane structures; on one hand, the guide seats 22b are adjustably mounted on the positioning seat 22a, and the distance between the two guide seats 22b can be adaptively adjusted according to the size (such as the diameter) of the round battery cell a, so that the molding device can adapt to the stretching treatment of round battery cells a with different sizes; on the other hand, the assembly of the two guide bases 22b has a substantially isosceles trapezoid structure due to the inclined surface structure, and the guide driving of the two gripping assemblies 10 is realized when the two guide bases 22b enter and exit from between the two pressure receiving members 11 by virtue of the sliding abutting relationship between the inclined surface structure and the pressure receiving members 11 (specifically, the follower wheels 11 c).
It should be noted that the tensile driving member 21 can be a power device such as an air cylinder, a body of the air cylinder is fixed on the bearing base 40, and a power output end is coupled to the positioning seat 22 a. Of course, the tension driver 21 may be constructed by combining a motor, a screw, a guide rod, and the like.
In one embodiment, referring to fig. 1 and fig. 2, the guiding element 22 further includes two first adjusting elements 22c, and the two first adjusting elements 22c are disposed in a one-to-one corresponding manner with the two guiding bases 22 b; specifically, taking one of the first adjusting members 22c as an example, the first adjusting member 22c is a screw structure, which is rotatably installed on the positioning seat 22a and is screwed with the corresponding guide seat 22b, and the guide seat 22b can be installed on the positioning seat 22a in a translational sliding manner by means of a linear module (i.e., a slide rail + a slider), so that the specific staying position of the guide seat 22b on the positioning seat 22a is adjusted by screwing the first adjusting member 22 c; in the case of the two guide sockets 22b, the adjustment of the distance between the two guide sockets can be achieved by screwing the corresponding first adjusting members 22c, so that the dimension of the guide 22 in the first direction (or the distance between the two clamping assemblies 10) is adapted to the diameter of the circular battery core a.
In specific implementation, a stroke scale can be arranged on the positioning seat 22a, so that the position of the guide seat 22b can be accurately regulated and controlled. In other embodiments, a plurality of hole sites arranged at intervals along the first direction may be disposed on the positioning seat 22a, and the first adjusting member 22c is replaced by a locking member such as a screw and the hole sites, so as to lock the guide seats 22b at different positions of the positioning seat 22a, so that the distance between the two guide seats 22b is equivalent to have different adjustable gears, so as to adaptively adjust the distance between the guide seats 22b according to the size of the circular battery core a.
In one embodiment, referring to fig. 1 and 2, the limiting assembly 30 further includes a second adjusting member 33, which is mainly used for adjusting the specific position of the limiting seat 31 on the bearing base 40, so as to adjust the tightness of the elastic member 32 and the maximum stroke position of the gripping assembly 10; the second adjusting member 33 can be arranged with reference to the first adjusting member 22c, namely: the second adjusting member 33 is rotatably mounted on the carrying base 40 and is in threaded connection with the limiting seat 31, and the limiting seat 31 is mounted on the carrying base 40 in a sliding manner; the position of the stopper 31 can be adjusted and fixed at a desired position by screwing the second adjusting member 33. Of course, a plurality of holes arranged at intervals along the first direction may be provided on the carrying base 40, and the second adjusting member 33 is replaced by a locking member such as a screw and the like in cooperation with the holes, so as to lock and fix the limiting seat 31 at different positions of the carrying base 40.
The present invention has been described in terms of specific examples, which are provided to aid in understanding the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (7)
1. The utility model provides a square electric core forming device which characterized in that includes:
a load-bearing base;
the two clamping components are movably arranged on the bearing base in a mirror image opposite mode along a first direction; the clamping assembly is used for clamping the peripheral wall of the circular battery cell from the radial direction of the circular battery cell and comprises a pressure-bearing part and a pre-tightening part, the pressure-bearing part is used for abutting against the inner side of the peripheral wall of the circular battery cell, and the pre-tightening part is used for abutting against the outer side of the peripheral wall of the circular battery cell; and
the stretching assemblies are used for driving the two clamping assemblies to move away from each other along a first direction in a reverse mode so as to stretch the round battery cell into the square battery cell; the stretching assembly is configured to be movable along a second direction orthogonal to the first direction to move in and out from between the two clamping assemblies; the stretching assembly comprises a stretching driving part, a positioning seat, two guide seats and two first adjusting parts; wherein:
the two guide bases are adjustably arranged on the positioning base in a mirror image opposite mode along the first direction, and inclined plane structures are arranged on the opposite sides of the two guide bases;
the stretching driving part is connected between the bearing base and the positioning seat and used for driving the positioning seat and the two guide seats to move along a second direction so that the two guide seats can come in and go out from the space between the two clamping assemblies; the inclined surface structure is used for the clamping components at the corresponding side to slide and abut when the guide seat moves into the space between the two clamping components;
the two first adjusting parts and the two guide seats are correspondingly matched one by one; the guide seat can be slidably arranged on the positioning seat, the first adjusting piece can be rotatably arranged on the positioning seat, and the first adjusting piece is in threaded connection with the corresponding guide seat; the first adjusting piece is used for positioning and fixing the guide seat on the positioning seat and adjusting the position of the guide seat on the positioning seat.
2. The square cell molding apparatus of claim 1, wherein the gripping assembly comprises:
the bearing part is movably arranged on the bearing base;
the preload pieces are arranged in parallel with the pressure bearing pieces along a first direction; and
the clamping driving piece is connected between the pressure bearing piece and the pre-tightening piece and used for driving the pressure bearing piece and the pre-tightening piece to approach to each other and move away from each other along a first direction so as to clamp the peripheral wall of the circular battery cell when the pressure bearing piece and the pre-tightening piece approach to each other;
the bearing parts of the two clamping assemblies face each other along a first direction, and the stretching assembly is configured to be capable of entering and exiting from between the bearing parts of the two clamping assemblies.
3. The square cell forming apparatus of claim 2, wherein the pressure bearing member comprises:
the first supporting seat is movably arranged on the bearing base;
the pressure bearing rod is used for abutting against the inner side of the peripheral wall of the round battery cell and extends along the third direction to be arranged on one side of the first supporting seat in the third direction; wherein the first direction, the second direction and the third direction are mutually orthogonal; and
and the following wheel is rotatably arranged on the other side of the first supporting seat in the third direction, the stretching assembly is configured to move in and out from the following wheel of the two clamping assemblies, and the following wheel is used for sliding against the surface of the stretching assembly in the first direction when the stretching assembly gradually extends into the space between the two clamping assemblies.
4. The square battery cell forming device of claim 3, wherein the pre-tightening member comprises a second support seat and a pre-tightening rod, and the pre-tightening rod is arranged on one side of the second support seat in the third direction in a parallel arrangement manner with the pressure-bearing rod and is used for abutting against the outer side of the peripheral wall of the round battery cell;
the clamping driving piece comprises a driving part and a guide part, the body of the driving part is fixed on one of the first supporting seat and the second supporting seat, the power end of the driving part is fixed on the other of the first supporting seat and the second supporting seat, the guide part extends along the first direction and is fixedly arranged on the first supporting seat, and the second supporting seat is slidably arranged on the guide part.
5. The square battery cell forming device of claim 1, further comprising two limiting assemblies, wherein the two limiting assemblies and the two clamping assemblies are arranged in a one-to-one correspondence manner, and the limiting assemblies are used for driving the corresponding clamping assemblies to move towards the other clamping assembly when the stretching assembly moves out of the two clamping assemblies, so that the two clamping assemblies can move towards each other along the first direction.
6. The square cell molding apparatus of claim 5, wherein the limiting assembly comprises:
the limiting seat is arranged on the bearing base and is arranged on one side, back to the other clamping component, of the corresponding clamping component along the first direction; and
the elastic piece is arranged between the limiting seat and the clamping assembly corresponding to the limiting seat, one end of the elastic piece is connected with the limiting seat, and the other end of the elastic piece is connected with the clamping assembly.
7. The square cell forming device of claim 6, wherein the limiting assembly further comprises a second adjusting member, and the second adjusting member is connected between the bearing base and the limiting seat and used for adjustably positioning and fixing the limiting seat on the bearing base.
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| CN202210255046.2A CN114335755B (en) | 2022-03-15 | 2022-03-15 | Square electricity core forming device |
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| CN202210255046.2A CN114335755B (en) | 2022-03-15 | 2022-03-15 | Square electricity core forming device |
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| CN114335755B true CN114335755B (en) | 2022-07-01 |
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| CN210120205U (en) * | 2019-07-06 | 2020-02-28 | 东莞市雅康精密机械有限公司 | Electricity core unloader |
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| FR2849283B1 (en) * | 2002-12-23 | 2005-10-28 | Batscap Sa | ARCHITECTURE OF WINDING DEVICE OF ELECTRIC ENERGY STORAGE ASSEMBLY |
| CN212033168U (en) * | 2020-05-14 | 2020-11-27 | 广东嘉尚新能源科技有限公司 | Composite set is used in lithium cell processing |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210120205U (en) * | 2019-07-06 | 2020-02-28 | 东莞市雅康精密机械有限公司 | Electricity core unloader |
| CN112830298A (en) * | 2019-11-22 | 2021-05-25 | 无锡先导智能装备股份有限公司 | Battery cell blanking device and method |
| CN211849645U (en) * | 2020-01-16 | 2020-11-03 | 佛山市强稳新能源有限公司 | Tubular pile resistance to plucking experimental auxiliary device |
| CN212087528U (en) * | 2020-03-04 | 2020-12-08 | 王海霞 | Insulation can is used in livestock breeding |
| CN214952784U (en) * | 2021-07-19 | 2021-11-30 | 烟台联创海越检测有限公司 | Grain hardness detection device |
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Address after: No.2, East 2nd Road, jinxiahe, Chang'an Town, Dongguan City, Guangdong Province, 523000 Patentee after: Guangdong Zeyuan Intelligent Equipment Co.,Ltd. Address before: No.2, East 2nd Road, jinxiahe, Chang'an Town, Dongguan City, Guangdong Province, 523000 Patentee before: DONGGUAN ZEYUAN MACHINE CO.,LTD. |