CN115502592A - Explosion-proof sheet connecting mechanism and method for battery cover plate - Google Patents
Explosion-proof sheet connecting mechanism and method for battery cover plate Download PDFInfo
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- CN115502592A CN115502592A CN202211184346.2A CN202211184346A CN115502592A CN 115502592 A CN115502592 A CN 115502592A CN 202211184346 A CN202211184346 A CN 202211184346A CN 115502592 A CN115502592 A CN 115502592A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000003466 welding Methods 0.000 claims abstract description 375
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- 238000001179 sorption measurement Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract description 12
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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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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Abstract
The application discloses explosion-proof piece welding system and explosion-proof piece welding method. The explosion-proof piece welding system comprises a base, a rotary table, a battery cover plate feeding mechanism, an explosion-proof piece feeding mechanism, a welding mechanism and a discharging mechanism, wherein the rotary table is arranged on the base in an intermittent rotating mode, and a plurality of positioning pieces are arranged on the rotary table. The battery cover plate feeding mechanism is configured to move the battery cover plate to be welded onto the positioning piece on the turntable; the explosion-proof piece feeding mechanism is configured to transfer an explosion-proof piece to be welded to a corresponding position on a positioning piece on which the battery cover plate is placed on the turntable; the welding mechanism is configured to weld the explosion-proof sheet on the positioning piece with the battery cover plate; the discharge mechanism is configured to transport the welded battery cover plate in a predetermined orientation. When the turntable stops for a preset time intermittently, the battery cover plate feeding mechanism, the explosion-proof sheet feeding mechanism, the welding mechanism and the discharging mechanism can simultaneously perform corresponding actions within the preset time. The application provides a technical scheme can improve the welding efficiency of explosion-proof piece.
Description
Technical Field
The application relates to the technical field of battery production, in particular to an explosion-proof sheet connecting mechanism and an explosion-proof sheet connecting method for a battery cover plate.
Background
The explosion-proof piece is a key part for ensuring the safety of the power battery, and whether the explosion-proof piece can timely release pressure when the pressure in the battery is increased and exceeds a safety threshold value is very important, so that the stability of the explosion value of the explosion-proof piece is a key factor for ensuring the safety of the battery. In recent years, in the process of assembling and producing batteries, an explosion-proof sheet needs to be welded on a battery cover to realize the explosion-proof and sealing functions of the batteries, but the welding process of the explosion-proof sheet also excessively depends on manual operation, so that the problems of low production efficiency, poor welding precision and poor welding quality exist.
Disclosure of Invention
The application provides an explosion-proof piece connecting mechanism and a connecting method for a battery cover plate, and welding efficiency, welding precision and quality of an explosion-proof piece are improved.
The application provides an explosion-proof piece coupling mechanism for battery apron includes:
the turntable can rotate intermittently, a plurality of positioning pieces are arranged on the turntable, and the positioning pieces are distributed on the turntable in an annular array;
the welding mechanism is configured to weld the explosion-proof sheet on the positioning piece with the battery cover plate;
the spot welding mechanism and the full-length welding mechanism are arranged at intervals along the rotating direction of the turntable; the positioning disc is positioned on one side of the turntable, which is far away from the base, and comprises a central ring and two positioning arms, the central ring is fixedly connected with the base, and the axis of the central ring is collinear with the axis of the turntable; the two positioning arms are connected with the central ring and are arranged at intervals in the circumferential direction of the central ring; spot welding positioning parts and full-length welding positioning parts are respectively arranged on the two positioning arms;
the spot welding positioning part is configured to enable the spot welding mechanism to approach from the upper part and position the spot welding mechanism so that the spot welding mechanism can be aligned with the explosion-proof sheet on the positioning part and the spot welding area of the battery cover plate; the full-welding positioning part is configured to enable the full-welding mechanism to approach from the upper part and position the full-welding mechanism, so that the full-welding mechanism can be aligned with the explosion-proof sheet on the positioning part and the full-welding area of the battery cover plate;
when the turntable stops for a preset time intermittently, the spot welding mechanism and the full-welding mechanism can simultaneously perform corresponding actions within the preset time.
The invention has the advantages that:
(1) In the process of realizing, the spot welding mechanism and the full-welding mechanism can correspond to one of the positioning pieces on the turntable in the preset time when the turntable stops after rotating by the preset angle, and thus, the spot welding mechanism and the full-welding mechanism can simultaneously perform corresponding actions, so that the mechanisms do not interfere with each other in work and can simultaneously perform in the preset time when the turntable stops, and the production efficiency of the explosion-proof piece is improved. And each mechanism is distributed at the circumferencial direction of carousel annular, and each mechanism integrates the degree higher between each, but setting element cycle work on the carousel, and the spatial layout of each mechanism is more reasonable, has practiced thrift the arrangement space, avoids appearing longer production line and leads to the problem of overall arrangement difficulty.
(2) Divide twice processes to accomplish the welding of explosion-proof piece in proper order through spot welding mechanism and full welding mechanism, utilize spot welding mechanism to carry out spot welding pre-fixing with the explosion-proof piece, let explosion-proof piece pre-welding connect to the pressure release hole of battery apron on, make preliminary multiple spot position welded fastening between explosion-proof piece and the battery apron, avoid the carousel to appear the phenomenon that the explosion-proof piece shifted in the rotation process, then it is fixed to recycle full welding mechanism carries out full welding to battery apron and explosion-proof piece, make the welding quality after explosion-proof piece and the welding of battery apron are accomplished higher.
(3) In-process of above-mentioned realization, through the setting of spot welding location portion and full weld location portion on the positioning disk, the spot welder can be close to or keep away from the carousel when the drive effect of first driving piece is down like this to make the spot welder can be close to spot welding location portion and accomplish the location of spot welder, thereby make the spot welder can be more accurate carry out spot welding with the battery cover plate to the explosion-proof piece on the corresponding setting element on the carousel and fix, thereby welding quality when guaranteeing explosion-proof piece spot welding. The full welding machine is characterized in that the full welding machine is arranged on the base, the base is provided with a second driving piece, the second driving piece is arranged on the base, the battery cover plate is arranged on the second driving piece, and the battery cover plate is arranged on the base.
(4) According to the positioning device, a positioning disc 80 is arranged at a proper position in a welding system, for example, one positioning disc 80 is coaxially arranged between a welding machine and a turntable, the axis of a central ring 81 is arranged to be collinear with the axis of the turntable, and two positioning arms 82 are connected with the central ring 81 and are arranged at intervals in the circumferential direction of the central ring 81; the two positioning arms 82 are respectively provided with a spot welding positioning part 83 and a full-welding positioning part 85 which respectively correspond to the spot welding mechanism and the full-welding mechanism in the vertical direction, and the spot welding mechanism and the full-welding mechanism which move downwards to execute welding action are limited in the horizontal direction by the spot welding positioning part 83 and the full-welding positioning part 85, so that the stability of the horizontal position of the two welding machines in the welding process can be ensured, and the horizontal displacement can be avoided; the structure of the positioning plate 80 has no influence on the welding action rhythm, and all mechanisms still perform actions according to the logic of the preset time before the positioning plate 80 is installed; moreover, if the spot welding mechanism and the full welding mechanism are changed due to fault positions, the positioning plate 80 can also correspond to the holding positions of the mechanisms through rotation, the use is flexible, the structure of the positioning plate is simple, the weight is light, the manufacturing cost cannot be excessively increased, and the assembly is convenient.
Optionally, in a possible implementation manner, the spot welding mechanism includes a first frame, a spot welding machine and a first driving member, the first driving member is mounted on the first frame, and a driving end is connected with the spot welding machine and configured to drive the spot welding machine to move along a first direction to be close to or far away from the positioning member on the turntable;
the full-welding mechanism comprises a second rack, a full-welding machine and a second driving piece, the second driving piece is installed on the second rack, a driving end is connected with the full-welding machine and is configured to drive the full-welding machine to move along the first direction so as to be close to or far away from the positioning piece on the turntable.
In the process of realizing, the spot welding machine can be driven to adjust the position through the first driving piece, and the welding quality of the spot welding machine during spot welding of the explosion-proof piece is easier to ensure. Similarly, the full welding machine can be driven to adjust the position through the second driving piece, and the welding quality of the full welding machine during full welding of the explosion-proof sheet is guaranteed more easily.
Optionally, in a possible implementation manner, a first positioning groove is formed on the spot welding positioning portion, the first positioning groove is configured to position a spot welding head of the spot welding machine, and a plurality of spot welding holes are correspondingly formed on the first positioning groove;
the full welding is equipped with the second constant head tank on the location portion, the second constant head tank is configured as right the full welding head of full welding machine is fixed a position, the hole is welded to the correspondence has been seted up on the second constant head tank.
In the process of realizing, the first positioning groove is utilized to contact and limit the spot welding head of the spot welding machine, so that the accurate positioning of the spot welding machine is realized, the spot welding machine cannot shift in the welding process, the stability of the spot welding machine is ensured, and the spot welding machine can accurately spot weld the explosion-proof sheet on the corresponding positioning piece on the turntable and the battery cover plate to ensure the welding quality of spot welding. The full welding machine is characterized in that the second positioning groove is arranged on the rotating disc, the second positioning groove is arranged on the second positioning groove, the second positioning groove is used for being in contact with a full welding head of the full welding machine, and the second positioning groove is used for limiting the full welding head, so that the full welding machine can be accurately positioned in the full welding process, the stability of the full welding machine is guaranteed, the full welding machine can be used for fully welding an explosion-proof sheet on a corresponding positioning piece on the rotating disc and a battery cover plate, and the full welding quality of the full welding machine is guaranteed.
Optionally, in a possible implementation manner, a first guide inclined surface is arranged on the first positioning groove and used for guiding the spot welding head to be in contact with the first positioning groove;
and a second guide inclined surface is arranged on the second positioning groove and used for guiding the full welding head to be in contact with the inside of the second positioning groove.
In the process of realizing, the spot welding head of the spot welding machine can be guided to be close to the spot welding positioning part by arranging the first guide inclined plane on the first positioning groove, so that the spot welding head can be accurately positioned, and the welding quality in the spot welding process is ensured. Similarly, through the arrangement of the second guide inclined plane on the second positioning groove, the full welding head of the full welding machine can be guided to approach the full welding positioning part, so that the full welding head can be accurately positioned, and the welding quality in the full welding process is ensured.
Optionally, in a possible implementation manner, a plurality of the positioning members are distributed on the turntable at equal intervals, and the number of the positioning members on the turntable is at least five.
In a second aspect, the present application further provides a method for connecting an explosion-proof sheet to a battery cover plate, including the steps of:
(1) The turntable can drive the positioning piece to rotate by a preset angle and stop for a preset time at the corresponding spot welding mechanism and the full-length welding mechanism;
(2) When the positioning piece with the battery cover plate and the explosion-proof piece rotates to the spot welding mechanism, the spot welding mechanism stops, the spot welding mechanism is close to the spot welding positioning part of one positioning arm on the positioning disc from the upper side, so that the spot welding mechanism is aligned with the spot welding area of the explosion-proof piece on the positioning piece and the battery cover plate, and the spot welding mechanism is operated to carry out spot welding on the explosion-proof piece and the battery cover plate;
(3) When the positioning piece with the battery cover plate and the explosion-proof sheet rotates to the full-welding mechanism, the full-welding mechanism stops, the full-welding mechanism is close to the full-welding positioning part of the other positioning arm on the positioning disc from the upper part, so that the full-welding mechanism is aligned with the full-welding area of the explosion-proof sheet on the positioning piece and the battery cover plate, and the full-welding mechanism is operated to perform full-welding fixing on the explosion-proof sheet and the battery cover plate;
circularly performing the steps to simultaneously perform spot welding and full welding; when the turntable drives the positioning piece to rotate by a preset angle and stops at the spot welding mechanism and the full welding mechanism for a preset time, corresponding actions can be simultaneously carried out.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an explosion-proof sheet welding system in one view angle according to the present embodiment;
FIG. 2 is a schematic structural diagram of the explosion-proof welding system of the present embodiment from another perspective;
FIG. 3 is a schematic structural diagram of a welding mechanism and a turntable in the explosion-proof plate welding system in this embodiment;
FIG. 4 is a schematic structural diagram of another view angle of FIG. 3 in the present embodiment;
FIG. 5 is an enlarged view taken at A in FIG. 3;
fig. 6 is an enlarged view at B in fig. 3.
Icon: 10-a turntable; 20-a base; 30-a battery cover plate feeding mechanism; 40-an explosion-proof sheet feeding mechanism; 50-spot welding mechanism; 51-a first chassis; 52-a first drive member; 53-spot welding machine; 60-full welding mechanism; 61-a second frame; 62-a second drive member; 63-full welding machine; 70-a discharging mechanism; 80-positioning plate; 81-a central ring; 82-a positioning arm; 83-spot welding a positioning part; 830-a first positioning groove; 831-first guide slope; 832-spot welding holes; 84-a first locating hole; 85-full welding positioning part; 850-second positioning groove; 851-first guide slopes; 852-full weld hole; 86-a second positioning hole; 90-a positioning element; 100-explosion-proof plate welding system.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when products of the application are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, which are merely for convenience of description and simplification of the description, and do not indicate or imply that the referenced devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the related art, in order to prevent the explosion problem in the power battery due to high air pressure, an explosion-proof sheet needs to be welded on a cover plate of the power battery, and the explosion-proof sheet has the function that the explosion-proof sheet can be broken to release pressure for the battery when the internal pressure of the power battery is too high due to temperature rise or other factors, so that the battery explosion is prevented. Therefore, the battery cover plate is provided with the pressure relief hole, and the explosion-proof piece is welded on the pressure relief hole of the battery cover plate.
The technical solution in the present application will be described below with reference to the accompanying drawings.
The embodiment provides an explosion-proof piece welding system 100, which can realize the feeding process of a battery cover plate and an explosion-proof piece, and the process of welding the explosion-proof piece on the battery cover plate, and ensure the production efficiency and the welding quality of the explosion-proof piece welding system.
Referring to fig. 1 and fig. 2, the explosion-proof welding system 100 includes a turntable 10, a base 20, a battery cover plate feeding mechanism 30, an explosion-proof plate feeding mechanism 40, a welding mechanism, and a discharging mechanism 70, wherein the turntable 10 is intermittently and rotatably disposed on the base 20, a plurality of positioning members 90 are disposed on the turntable 10, and the positioning members 90 are distributed on the turntable in a circular array. The battery cover plate feeding mechanism 30 is configured to move the battery cover plate to be welded onto the positioning member 90 on the turntable; the explosion-proof sheet feeding mechanism 40 is configured to transfer an explosion-proof sheet to be welded to a corresponding position on a positioning member 90 on which a battery cover plate is placed on a turntable; the welding mechanism is configured to weld the explosion-proof sheet on the positioning member 90 with the battery cover plate; the discharge mechanism 70 is configured to transport the welded battery cover plates on the positioning members 90 on the turntable in a predetermined direction. Wherein, in the rotation direction of the turntable, the battery cover plate feeding mechanism 30, the explosion-proof sheet feeding mechanism 40, the welding mechanism and the discharging mechanism 70 are sequentially arranged at intervals; when the turntable 10 stops intermittently for a predetermined time, the battery cover plate feeding mechanism 30, the explosion-proof sheet feeding mechanism 40, the welding mechanism and the discharging mechanism 70 all can perform corresponding actions simultaneously within the predetermined time.
In the implementation process, the turntable 10 is rotatably mounted on the base 20, the turntable 10 can intermittently rotate, the turntable 10 stops for a preset time after rotating for a preset angle each time, and in the preset time when the turntable 10 stops after rotating for the preset angle each time, the battery cover plate feeding mechanism 30, the explosion-proof sheet feeding mechanism 40, the spot welding mechanism 50, the full welding mechanism 60 and the unloading mechanism 70 can all correspond to one of the positioning pieces 90 on the turntable 10, so that the battery cover plate feeding mechanism 30, the explosion-proof sheet feeding mechanism 40, the welding mechanism and the unloading mechanism 70 can all perform corresponding actions, therefore, the work among all the mechanisms is not interfered with each other, and the work can be performed simultaneously in the preset time when the turntable 10 stops, and the production efficiency of the explosion-proof sheet is improved. And each mechanism is at the circumferencial direction annular distribution of carousel 10, and each mechanism integrates the degree higher, but setting element 90 cycle work on carousel 10, and the spatial layout of each mechanism is more reasonable, has practiced thrift the arrangement space, avoids appearing longer production line and leads to the problem of overall arrangement difficulty.
It is to be understood that the actions performed by the various mechanisms described above refer to: in the preset time when the turntable 10 stops, the battery cover plate feeding mechanism 30 can feed the battery cover plate to the corresponding positioning piece 90 on the turntable, the explosion-proof piece feeding mechanism 40 can feed the explosion-proof piece to the positioning piece 90 with the battery cover plate and place the explosion-proof piece in the pressure relief hole of the battery cover plate, the welding mechanism can weld the explosion-proof piece on the battery cover plate, and the discharging mechanism 70 can also discharge the welded battery cover plate.
It should be noted that the shape of the pressure relief hole may be circular, oval or kidney-shaped, and then the specific shape of the explosion-proof sheet is matched with the shape of the pressure relief hole on the battery cover plate. In addition, the explosion-proof sheet is a metal sheet, and preferably, the explosion-proof sheet may be an aluminum alloy sheet.
The base 20 is provided with a motor (not shown in the figures) and a transmission assembly (not shown in the figures), and the motor is connected with the turntable 10 through the transmission assembly and is used for driving the turntable 10 to rotate relative to the base 20. The motor is fixed on the base 20, and the transmission assembly can be arranged into a gear transmission structure or a belt transmission structure. For example, transmission assembly includes driving gear and driven gear, and driving gear and driven gear meshing, the driving gear cup joint outside the output shaft of motor, driven gear and carousel fixed connection, and the motor passes through the driving gear and rotates to drive the carousel through driven gear and rotate. It should be understood that the motor may be a servo motor, and the motor may be connected to the turntable 10 through a speed reducer so that the turntable 10 can rotate at a slow speed.
In addition, the motor can be electrically controlled through the relay, so that the motor can run intermittently, the turntable 10 is driven to rotate at a preset angle every time, and the angle value of the preset angle can be matched with the included angle formed between the centers of the two adjacent positioning pieces 90 on the turntable 10 and the turntable 10. The time of each stop of the motor is preset time, the preset time can be matched and coordinated according to the time required by the corresponding actions of the battery cover plate feeding mechanism 30, the explosion-proof piece feeding mechanism 40, the welding mechanism and the discharging mechanism 70, the corresponding actions can be completed within the preset time by ensuring that all the mechanisms can complete the corresponding actions, and after the actions of all the mechanisms are completed, the motor is started to drive the turntable to rotate, so that the production line of the explosion-proof piece welding system 100 can be operated in a flow mode, and the production efficiency of the explosion-proof piece welding system is ensured.
Wherein, battery apron feed mechanism 30 and explosion-proof piece feed mechanism 40 can be that conveyer cooperation unipolar robot goes on, and the conveyer belt through the conveyer carries out the material loading transport of target piece, then utilize the centre gripping arm or the sucking disc device of unipolar robot execution end department to transport the target piece on the conveyer belt to the locating piece 90 on the carousel on the assigned position can. Similarly, the unloading mechanism 70 may be a conveyor cooperating with a single-shaft robot, and a clamping arm or a suction cup device at an executing end of the single-shaft robot may be used to transfer the welded target object on the turntable onto the conveyor belt, and convey the target object along a predetermined direction. It should be noted that, single-axis robot technology is mature, and the purchase and the assembly of being convenient for can effectively accurately transfer the target piece to corresponding position. But not limited thereto, the battery cover feeding mechanism 30 and the rupture disk feeding mechanism 40 may be other conveying feeding mechanisms. It is understood that the target member herein is a battery cover plate, an explosion-proof sheet, or a battery cover plate that has been welded.
Optionally, referring to fig. 3 and 4, in one possible implementation, the welding mechanism includes a spot welding mechanism 50 and a full-length welding mechanism 60, the spot welding mechanism 50 is configured to spot-weld the explosion-proof sheet on the positioning member 90 to the battery cover plate; the full-length welding mechanism 60 is configured to perform full-length welding fixation between the spot-welded explosion-proof sheet and the battery cover plate. Wherein, the spot welding mechanism 50 and the full-length welding mechanism 60 are arranged at intervals along the rotating direction of the turntable 10.
The in-process of above-mentioned realization, divide twice process to accomplish the welding of explosion-proof piece in proper order through spot welding mechanism 50 and full welding mechanism 60, utilize spot welding mechanism 50 can carry out spot welding pre-fixing with the explosion-proof piece, let explosion-proof piece pre-welding connect to the pressure release hole of battery apron, make preliminary multiple spot position welded fastening between explosion-proof piece and the battery apron, avoid carousel 10 to appear the phenomenon that the explosion-proof piece shifted in the rotation process, the wholeness of explosion-proof piece and battery end cover has been guaranteed, it is fixed to carry out the full welding to battery apron and explosion-proof piece to follow-up full welding mechanism 60 of recycling, the phenomenon that the welding and shifted can not appear in the explosion-proof piece, make the welding quality after explosion-mentioned battery cover plate welding is accomplished higher.
The spot welder 53 and the full welder 63 may be a laser spot welder or an ultrasonic welder.
Alternatively, in one possible implementation, with continued reference to fig. 3 and 4, the spot welding mechanism 50 includes a first frame 51, a spot welder 53, and a first driver 52, the first driver 52 is mounted on the first frame 51, and a driving end of the first driver 52 is connected to the spot welder 53 and configured to drive the spot welder 53 to move in a first direction to approach or separate from the positioning member 90 on the turntable 10. The full-welding mechanism 60 comprises a second frame 61, a full-welding machine 63 and a second driving member 62, wherein the second driving member 62 is mounted on the second frame 61, and a driving end of the second driving member 62 is connected with the full-welding machine 63 and is configured to drive the full-welding machine 63 to move along a first direction so as to be close to or far away from the positioning member 90 on the turntable 10.
In the process of the realization, the spot welding machine 53 can be driven by the first driving piece 52 to adjust the position, so that the spot welding machine 53 can be more easily ensured to be accurately aligned to the explosion-proof sheet during spot welding, and the welding quality is ensured. Equally, can drive full welding machine 63 through second driving piece 62 and can adjust the position, change and guarantee full welding machine 63 and to the explosion-proof piece when full welding can accurate alignment, guarantee its welding quality.
Wherein, the first direction may be a direction perpendicular to the plane of the turntable 10. The first frame 51 and the second frame 61 may have a frame structure or a base structure, and in this embodiment, the first frame 51 and the second frame 61 have a frame structure. The first and second drives 52, 62 may be provided as pneumatic cylinders, hydraulic cylinders, electric push rods, or lead screw nut arrangements, among others. It should be noted that the first and second drivers 52, 62 may be configured identically, e.g., both being pneumatic cylinders.
Optionally, in a possible implementation manner, referring to fig. 5 and 6, the welding mechanism further includes a positioning plate 80, the positioning plate 80 is located on a side of the turntable 10 away from the base 20, and the positioning plate 80 includes a spot welding positioning portion 83 and a full welding positioning portion 85. The spot welding positioning part 83 is configured to allow the spot welding machine 53 to approach and position the spot welding machine 53 so that the spot welding machine 53 can be aligned with the spot welding area of the battery cover plate and the explosion-proof sheet on the positioning part 90; the full-welding positioning part 85 is configured to allow the full-welding machine 63 to approach and position the full-welding machine 63, so that the full-welding machine 63 can align with the explosion-proof sheet on the positioning part 90 and the full-welding area of the battery cover plate.
In-process of above-mentioned realization, through the setting of spot welding location portion 83 and full weld location portion 85 on positioning disk 80, spot welder 53 is when the drive action of first driving piece 52 is down like this, can be close to or keep away from carousel 10, thereby make spot welder 53 can be close to spot welding location portion 83 and accomplish spot welder 53's location, thereby make spot welder 53 can carry out spot welding with the battery cover board with explosion-proof piece on the corresponding setting element 90 on the carousel more accurate and fix, thereby welding quality when guaranteeing explosion-proof piece spot welding. Similarly, the full-welding machine 63 can be close to or far away from the turntable under the driving action of the second driving member 62, so that the full-welding with the explosion-proof sheet on the corresponding positioning member 90 on the turntable 10 can be more accurately performed with the battery cover plate, and the welding quality of the explosion-proof sheet during full-welding is ensured.
The positioning plate 80 comprises a central ring 81 and two positioning arms 82, the central ring 81 is fixedly connected with the base 20, and the axis of the central ring 81 is collinear with the axis of the turntable; both positioning arms 82 are connected to the center ring 81 and are arranged at intervals in the circumferential direction of the center ring 81. Spot welding position determining portions 83 and full-length welding position determining portions 85 are provided on the two positioning arms 82, respectively. Therefore, the positioning plate 80 is simple in structure, less in material consumption and low in cost. Positioning disk 80 is frame-type structure, light in weight, and the receiver of being convenient for is carried, also is convenient for assemble.
Optionally, in a possible implementation manner, referring to fig. 5 and fig. 6, a first positioning groove 830 is disposed on the spot welding positioning portion 83, the first positioning groove 830 is configured to position a spot welding head of the spot welding machine 53, and a plurality of spot welding holes 832 are correspondingly disposed on the first positioning groove 830. The full welding positioning portion 85 is provided with a second positioning groove 850, the second positioning groove 850 is configured to position the full welding head of the full welding machine 63, and the second positioning groove 850 is correspondingly provided with full welding holes 852.
In-process that above-mentioned realization, utilize first constant head tank 830 to come to contact with the spot welding head of spot welder 53 and spacing to it, just realize the accurate positioning to spot welder 53 for spot welder 53 can not appear the condition of aversion in welding process, has guaranteed spot welder 53's stability, thereby makes the accurate spot welding of explosion-proof piece and battery apron on spot welder 53 can the corresponding setting element 90 on the antipad, guarantees the welding quality of its spot welding. Similarly, the second positioning groove 850 is used for contacting and limiting the full welding head of the full welding machine 63, so that the full welding machine 63 can be accurately positioned, the full welding machine 63 cannot shift in the welding process, the stability of the full welding machine 63 is ensured, the full welding machine 63 can accurately fully weld the explosion-proof sheet on the corresponding positioning part 90 on the turntable and the battery cover plate, and the full welding quality of the full welding machine is ensured.
The number of the first positioning grooves 830 in each spot welding positioning portion 83 and the number of the second positioning grooves 850 in each full-welding positioning portion 85 may be one or more. The number of the first and second positioning grooves 830 and 850 may be determined according to the number of the battery end caps on each positioning member 90. In the present embodiment, the number of the first positioning grooves 830 in the spot welding positioning portion 83 and the second positioning grooves 850 in the full welding positioning portion 85 is two.
In addition, spot welding holes 832 on spot welding positioning part 83 are distributed along the circumferential direction and are matched with the shape of the explosion-proof sheet, and spot welding holes 832 are arranged along the circumferential direction of the outer contour of the explosion-proof sheet. The number of the spot welding holes 832 may be plural, and in the present embodiment, the number of the spot welding holes 832 is six. The shape of the full-welding hole 852 of the full-welding positioning part 85 is adapted to the full-welding area.
Optionally, in a possible implementation manner, referring to fig. 5 and 6, a first guiding inclined plane 831 is disposed on the first positioning groove 830 for guiding the spot welding head to contact with the first positioning groove 830; a second guiding ramp is provided in the second detent 850 for guiding the full horn into contact with the interior of the second detent 850.
In the above implementation process, the spot welding head of the spot welding machine 53 can be guided to approach the spot welding positioning portion 83 by the arrangement of the first guide inclined plane 831 on the first positioning groove 830, so that the spot welding head can be accurately positioned, and the welding quality in the spot welding process is ensured. Similarly, by providing the second guide slope on the second positioning groove 850, the full-welding head of the full-welding machine 63 can be guided to approach the full-welding positioning portion 85, so that the full-welding head can be accurately positioned, and the welding quality in the full-welding process can be ensured.
In particular, in order to ensure that the position of the rotary disc is relatively fixed in the welding process, the battery cover and the explosion-proof sheet are not easy to displace due to the shaking of the rotary disc. In view of this, the spot welder 53 may further include an auxiliary positioning device for positioning the turntable. The auxiliary positioning device comprises a first positioning plug-in (not shown in the figure) and a second positioning plug-in (not shown in the figure), the first positioning plug-in is arranged on the spot welding machine 53, and a first positioning hole 84 for the first positioning plug-in is arranged at the spot welding positioning part 83 on the positioning plate 80. The second positioning insert is disposed on the full-welding machine 63, a second positioning hole 86 for the second positioning insert is disposed at the full-welding positioning portion 85 on the positioning plate 80, and a third positioning hole (not shown) for communicating with the first positioning hole 84 or the second positioning hole 86 is disposed at one side of each positioning member 90 on the turntable. Specifically, the first positioning insert and the second positioning insert may be column mechanisms, such as a first positioning column and a second positioning column.
In the above implementation process, when the positioning element 90 rotates to correspond to the spot welding mechanism 50, the first positioning hole 84 is communicated with the third positioning hole, and the first positioning plug-in can be driven by the first driving element 52 to be inserted into the first positioning hole 84 and the third positioning hole, so as to limit the rotation of the positioning element 90 on the turntable. When the positioning member 90 rotates to correspond to the full-welding mechanism 60, the second positioning hole 86 is communicated with the third positioning hole, and the second positioning insert can be driven by the second driving member 62 to be inserted into the third positioning hole and the first positioning hole 84, so as to limit the rotation of the positioning member 90 on the turntable.
Through auxiliary positioning device's setting, can play restriction carousel 10 and the relative pivoted effect of positioning disk 80 for carousel 10 keeps relatively fixed with base 20, and in welding process, difficult because rocking of carousel 10 leads to welding quality to descend, has reduced the accident rate. Meanwhile, the first positioning hole 84 is communicated with the third positioning hole, or the second positioning hole 86 is communicated with the third positioning hole, so that whether the turntable 10 rotates in place or not can be verified, and the welding precision of the spot welding machine 53 and the full welding machine 63 can be guaranteed.
It should be noted that, when the first positioning insert can be inserted into the first positioning hole 84 and the third positioning hole under the driving of the first driving member 52, at this time, the spot welding head of the spot welding machine 53 also contacts and positions the first positioning groove 830 of the spot welding positioning portion 83, and similarly, the full welding head of the full welding machine 63 also contacts and positions the second positioning groove 850 of the full welding positioning portion 85.
In addition, the positioning piece 90 can be provided with a limiting groove, the limiting groove is used for positioning the battery cover plate when the battery cover plate is arranged on the positioning piece 90, the precision of the battery cover plate when the battery cover plate is arranged is guaranteed, and the limiting groove can avoid the phenomenon that the battery cover plate is displaced under the rotating action of the turntable. In this embodiment, the number of the limiting grooves on each positioning member 90 can be two, and the number of the limiting grooves is adapted to the number of the first positioning grooves 830 on the spot welding positioning portion 83 on the positioning plate 80, and the number of the second positioning grooves 850 on the full welding positioning portion 85. Like this, can place two battery apron side by side on every setting element 90, same, explosion-proof piece feed mechanism 40 also can go up two explosion-proof pieces of material, and in the scheduled time that the carousel stopped, every batch of welding mechanism can weld two explosion-proof pieces and two battery apron, has improved production efficiency.
Alternatively, in one possible implementation, a plurality of positioning members 90 are equally spaced on the turntable 10, and the number of positioning members 90 on the turntable 10 is at least five. In the present embodiment, eight positioning members 90 are provided on the turntable 10.
The embodiment also provides an explosion-proof sheet welding method, which comprises the following steps: the turntable drives the positioning piece 90 to rotate by a preset angle and stops for a preset time at each mechanism, and when the turntable 10 rotates until the battery cover plate feeding mechanism 30 stops, the battery cover plate feeding mechanism 30 places a battery cover plate to be welded on the positioning piece 90 on the turntable; when the positioning piece 90 with the battery cover plate to be welded rotates until the explosion-proof piece feeding mechanism 40 stops, the explosion-proof piece feeding mechanism 40 places the explosion-proof piece to be welded on the positioning piece 90 with the battery cover plate; when the positioning piece 90 with the battery cover plate and the explosion-proof sheet rotates to the stop of the welding mechanism, the welding mechanism welds the explosion-proof sheet on the positioning piece 90 on the battery cover plate; when the positioning piece 90 of the welded battery cover plate rotates to the unloading mechanism 70 to stop, the unloading mechanism 70 takes down the welded battery cover plate on the positioning piece 90; circularly carrying out the steps to simultaneously carry out feeding, welding and discharging; when the turntable drives the positioning member 90 to rotate by a predetermined angle and stop at each mechanism for a predetermined time, the battery cover plate feeding mechanism 30, the explosion-proof sheet feeding mechanism 40, the welding mechanism and the discharging mechanism 70 can perform corresponding actions at the same time.
In the process of the implementation, in the preset time when the turntable 10 stops after rotating for each preset angle, the battery cover plate feeding mechanism 30, the explosion-proof sheet feeding mechanism 40, the spot welding mechanism 50, the full welding mechanism 60 and the discharging mechanism 70 can all correspond to one of the positioning pieces 90 on the turntable, and thus, the battery cover plate feeding mechanism 30, the explosion-proof sheet feeding mechanism 40, the welding mechanism and the discharging mechanism 70 can all perform corresponding actions, so that the work among the mechanisms is not interfered with each other, and the work can be performed simultaneously in the preset time when the turntable 10 stops, thereby improving the production efficiency of the explosion-proof sheet. And each mechanism is at the circumferencial direction annular distribution of carousel, and each mechanism integrates the degree higher between each, but setting element 90 cycle work on the carousel, and the spatial layout of each mechanism is more reasonable, has practiced thrift the arrangement space, avoids appearing longer production line and leads to the problem of overall arrangement difficulty.
Optionally, in a possible implementation manner, when the explosion-proof sheet feeding mechanism 40 places the explosion-proof sheet to be welded on the battery cover plate on the positioning member 90 on the turntable, the explosion-proof sheet is placed on the pressure release hole of the battery cover plate on the positioning member 90, and a vacuum adsorption device is used to generate negative pressure to vacuum-adsorb and attach the explosion-proof sheet to the edge of the pressure release hole of the battery cover plate.
The in-process of above-mentioned realization produces the negative pressure through adopting the vacuum adsorption device, pastes explosion-proof piece and battery cover plate's pressure release hole edge vacuum adsorption tightly for the carousel can not lead to the fact the influence to the relative position between explosion-proof piece and the battery end cover on the setting element 90 at the pivoted in-process, has guaranteed the accuracy nature of explosion-proof piece and battery end cover position.
Optionally, in a possible implementation manner, when the welding mechanism welds the explosion-proof sheet to the battery cover plate, the spot welding is performed on the explosion-proof sheet and the battery cover plate, and then the explosion-proof sheet after the spot welding is fully welded and fixed to the battery cover plate.
The in-process of above-mentioned realization, divide twice process through spot welding mechanism 50 and full welding mechanism 60 and accomplish the welding of explosion-proof piece in proper order, utilize spot welding mechanism 50 can carry out spot welding pre-fixing with the explosion-proof piece, let explosion-proof piece pre-welding to the pressure release hole of battery apron on, make preliminary multiple spot position welded fastening between explosion-proof piece and the battery apron, avoid the carousel to appear the phenomenon that the explosion-proof piece shifted in the rotation process, then it is fixed to utilize full welding mechanism 60 to carry out full welding to battery apron and explosion-proof piece again, make the welding quality after explosion-proof piece and the welding of battery apron are accomplished higher.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (7)
1. An explosion-proof piece coupling mechanism for a battery cover plate, comprising:
the turntable can rotate intermittently, a plurality of positioning pieces are arranged on the turntable, and the positioning pieces are distributed on the turntable in an annular array;
the welding mechanism is configured to weld the explosion-proof sheet on the positioning piece with the battery cover plate and comprises a spot welding mechanism, a full-welding mechanism and a positioning disc;
the spot welding mechanism and the full-length welding mechanism are arranged at intervals along the rotating direction of the turntable; the positioning disc is positioned on one side of the turntable, which is far away from the base, and comprises a central ring and two positioning arms, the central ring is fixedly connected with the base, and the axis of the central ring is collinear with the axis of the turntable; the two positioning arms are connected with the central ring and are arranged at intervals in the circumferential direction of the central ring; the two positioning arms are respectively provided with a spot welding positioning part and a full welding positioning part;
the spot welding positioning part is configured to enable the spot welding mechanism to approach from the upper part and position the spot welding mechanism so that the spot welding mechanism can be aligned with the explosion-proof sheet on the positioning part and the spot welding area of the battery cover plate; the full-welding positioning part is configured to enable the full-welding mechanism to approach from the upper part and position the full-welding mechanism, so that the full-welding mechanism can be aligned with the explosion-proof sheet on the positioning part and the full-welding area of the battery cover plate;
when the turntable stops intermittently for a preset time, the spot welding mechanism and the full-welding mechanism can simultaneously perform corresponding actions within the preset time.
2. The explosion-proof sheet connecting mechanism for a battery cover plate according to claim 1,
the spot welding mechanism comprises a first rack, a spot welder and a first driving piece, wherein the first driving piece is installed on the first rack, a driving end is connected with the spot welder, and the first driving piece is configured to drive the spot welder to move along a first direction so as to be close to or far away from the positioning piece on the turntable;
the full-welding mechanism comprises a second rack, a full-welding machine and a second driving piece, the second driving piece is installed on the second rack, a driving end is connected with the full-welding machine and is configured to drive the full-welding machine to move along the first direction so as to be close to or far away from the positioning piece on the turntable.
3. The explosion-proof sheet connection mechanism for a battery cover plate according to claim 2,
the spot welding positioning part is provided with a first positioning groove, the first positioning groove is configured to position a spot welding head of the spot welding machine, and a plurality of spot welding holes are correspondingly formed in the first positioning groove;
the full-welding positioning part is provided with a second positioning groove, the second positioning groove is configured to position a full-welding head of the full-welding machine, and a full-welding hole is correspondingly formed in the second positioning groove.
4. The explosion-proof sheet connecting mechanism for a battery cover plate according to claim 3,
the first positioning groove is provided with a first guide inclined plane for guiding the spot welding head to be in contact with the first positioning groove;
and a second guide inclined plane is arranged on the second positioning groove and used for guiding the full welding head to be in contact with the second positioning groove.
5. The explosion-proof sheet connection mechanism for a battery cover plate according to claim 1,
the positioning pieces are distributed on the rotary disc at equal intervals, and the number of the positioning pieces on the rotary disc is set to be at least five.
6. A method for connecting an explosion-proof sheet for a battery cover plate is characterized by comprising the following steps of:
(1) The turntable drives the positioning piece to rotate by a preset angle and stops for a preset time at the corresponding spot welding mechanism and the full-length welding mechanism;
(2) When the positioning piece with the battery cover plate and the explosion-proof sheet rotates to the spot welding mechanism, the spot welding mechanism stops, the spot welding mechanism is close to a spot welding positioning part of one positioning arm on the positioning disc from the upper part, so that the spot welding mechanism is aligned with the spot welding area of the explosion-proof sheet on the positioning piece and the battery cover plate, and the spot welding mechanism is operated to perform spot welding on the explosion-proof sheet and the battery cover plate;
(3) When the positioning piece with the battery cover plate and the explosion-proof piece rotates to the full-welding mechanism, the full-welding mechanism stops, the full-welding mechanism is close to the full-welding positioning part of the other positioning arm on the positioning disc from the upper part, so that the full-welding mechanism is aligned with the full-welding area of the explosion-proof piece on the positioning piece and the full-welding area of the battery cover plate, and the full-welding mechanism is operated to perform full-welding fixing on the explosion-proof piece and the battery cover plate;
circularly performing the steps to simultaneously perform spot welding and full welding; when the turntable drives the positioning piece to rotate by a preset angle and stops at the spot welding mechanism and the full welding mechanism for a preset time, all the mechanisms can simultaneously perform corresponding actions.
7. The explosion-proof sheet connection method for a battery cap plate according to claim 6,
the explosion-proof piece is arranged in a pressure relief hole of a battery cover plate on the positioning piece, and a vacuum adsorption device is adopted to generate negative pressure so as to closely adhere the explosion-proof piece to the edge of the pressure relief hole of the battery cover plate in a vacuum adsorption mode.
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| CN202211184346.2A CN115502592B (en) | 2021-09-09 | 2021-09-09 | Explosion-proof piece connecting mechanism and connecting method for battery cover plate |
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| CN202211184346.2A CN115502592B (en) | 2021-09-09 | 2021-09-09 | Explosion-proof piece connecting mechanism and connecting method for battery cover plate |
| CN202111053936.7A CN113714696B (en) | 2021-09-09 | 2021-09-09 | Explosion-proof sheet welding system and explosion-proof sheet welding method |
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| CN114221013B (en) * | 2021-12-10 | 2024-05-03 | 苏州明益信智能设备有限公司 | Explosion-proof piece assembling and welding equipment for power battery cover plate |
| CN117340475B (en) * | 2023-12-06 | 2024-03-15 | 苏州华工自动化技术有限公司 | Explosion-proof piece welding machine and working method thereof |
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| Publication number | Publication date |
|---|---|
| CN113714696B (en) | 2022-10-04 |
| CN115502592B (en) | 2024-04-26 |
| CN113714696A (en) | 2021-11-30 |
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