CN217641403U - Bending equipment - Google Patents

Abstract

The utility model discloses a bending equipment, include: bear mechanism and the mechanism of bending, bear the mechanism and be formed with the electric core loading end that is used for bearing electric core, the mechanism of bending includes kink and drive division, the kink is located the one end of electric core loading end, the drive division can drive the kink is rotatory to drive electric core utmost point ear or connection piece and buckle, electric core places on electric core loading end, then through drive division drive kink rotatory and drive electric core utmost point ear or connection piece buckle, simplified the structure setting, reduced the hardware cost of equipment, greatly reduced the occupation space of equipment to can realize electric core utmost point ear or connection piece once buckle and put in place, improved production efficiency.

Description

Bending equipment

Technical Field

The utility model relates to a battery processing technology field, in particular to equipment of bending.

Background

In the production of batteries, positive and negative lugs or connecting sheets of a battery core need to be bent, and the bending quality of the lugs of the battery directly influences the quality of products. The traditional bending process adopts a clamp for positioning, and a worker manually bends the tab by using a tab bending rod; anchor clamps body location electricity core and utmost point ear position to restriction utmost point ear size of buckling to this guarantees the yield of rolling over utmost point ear, but rolls over utmost point ear dimensional stability poor like this, and manual operation receives personnel's factor to influence greatly, has characteristics that inefficiency, yields are low, the uniformity is poor, working strength is big.

Except manual bending, the current bending equipment can achieve the expected effect after being bent for multiple times, and the process and the mechanical structure are complex, so that the production efficiency is further low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide an equipment of bending.

According to the utility model discloses a first aspect embodiment provides an equipment of bending, include: bear mechanism and the mechanism of bending, bear the mechanism and be formed with the electric core loading end that is used for bearing electric core, the mechanism of bending includes kink and drive division, the kink is located the one end of electric core loading end, the drive division can drive the kink is rotatory to it buckles to drive electric core utmost point ear or connection piece.

Has the beneficial effects that: this equipment of bending, electric core are placed on electric core loading end, and it is rotatory through drive division drive kink for can drive electric core utmost point ear or connection piece and buckle, simplify the structure setting, reduce the hardware cost of equipment, the occupation space of equipment that has significantly reduced, and can realize utmost point ear once buckling and target in place, improve production efficiency.

According to the utility model discloses the equipment of bending of first aspect embodiment, the kink includes the connecting plate and is located the curb plate of connecting plate both sides, the connecting plate with the curb plate forms concave shape, the drive division can drive the curb plate rotates.

According to the utility model discloses the equipment of bending, the mechanism of bending include the mounting panel, install on the mounting panel the kink with the drive division, the mounting panel is formed with accommodation space supplies the kink is rotatory.

According to the utility model discloses the equipment of bending, the equipment of bending still include sensor and response piece, the sensor sets up on the mounting panel, the response piece sets up on the kink, the sensor with the cooperation of response piece is in order to respond to the position of kink.

According to the utility model discloses the equipment of bending, the connecting plate towards one side of electricity core loading end is provided with location portion, location portion and utmost point post cooperation location.

According to the utility model discloses bending equipment of the first aspect embodiment, location portion includes sliding part and two bearing blocks, the sliding part is followed connecting plate length direction sets up, the bearing block can be followed the sliding part is relative or slides in opposite directions.

According to the utility model discloses the equipment of bending, the equipment of bending still include spacing portion, spacing portion sets up the both sides of electric core loading end, just spacing portion exceeds the setting of electric core loading end.

According to the utility model discloses the equipment of bending, the equipment of bending still include power part, power part can drive spacing portion is followed battery cell loading end width direction removes with the spacing electric core of centre gripping.

According to the utility model discloses the equipment of bending, the equipment of bending still include the sideslip module, the mechanism of bending is installed the execution end of sideslip module, the sideslip module is used for the drive the mechanism horizontal direction of bending is close to or keeps away from bear the weight of the mechanism.

According to the utility model discloses the equipment of bending, the equipment of bending still include the lifting module, the lifting module is used for the drive the vertical direction motion of mechanism of bending.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

fig. 1 is a schematic view of a first viewing angle of a bending apparatus according to an embodiment of the present invention;

fig. 2 is a schematic view of a second viewing angle of the bending apparatus according to the embodiment of the present invention;

fig. 3 is the embodiment of the present invention electric core structure schematic diagram.

The battery comprises a battery cell 10, a battery cell tab 101, a battery cell body 102, a top cover 103 and a pole 104;

the battery pack comprises a bearing mechanism 100, a battery cell bearing surface 110, a rack 120, a bearing table 130, a limiting part 140 and a power part 150;

base plate 121, support column 122, top plate 123, first support plate 124;

a bending mechanism 200, a bending part 210, a driving part 220, an installation plate 230, a positioning part 240, and a second support plate 250;

a connecting plate 211, a side plate 212;

a sliding part 241 and a holding block 242;

a sensor 310, a sensing piece 320;

a traverse module 400;

the lifting module 500.

Detailed Description

This section will describe in detail the embodiments of the present invention, the preferred embodiments of which are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can visually and vividly understand each technical feature and the whole technical solution of the present invention, but it cannot be understood as a limitation to the scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of meanings are one or more, a plurality of meanings are two or more, and the terms greater than, smaller than, exceeding, etc. are understood as excluding the number, and the terms greater than, lower than, within, etc. are understood as including the number. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.

In the processing procedure of lithium ion battery utmost point ear, traditional flatiron adds tin welding mode and has higher requirement to operating personnel's welding technique, is unfavorable for batch processing production to this kind of welding mode also can cause the influence to battery itself, and too high flatiron temperature can reduce the battery performance on the one hand, and the welding slag after the on the other hand welding can bring the potential safety hazard for the follow-up use of battery. With the development of the power battery industry, the conventional manual welding is gradually replaced by laser welding, the basic principle of the laser welding is to apply pressure by a tool fixture to overlap two welded parts, then inject laser into the welded parts, enable the laser to penetrate through the welded parts positioned above and be absorbed by the welded parts positioned below, and enable the contact surfaces of the two welded parts to be melted after the absorbed light energy is converted into heat energy, and gradually form a welding area. When being applied to the welding processing of the battery tab, the mode needs a tool which can tightly press the battery tab on the battery busbar, thus ensuring that the tab can be in close contact with the busbar of the battery when welding. For convenience of operation, the positive and negative electrode tabs of each cell are bent before pressing, and are attached to the busbar in one direction. At present, the positive and negative lugs on each battery are manually pressed down, the workload is large, the bending efficiency is low, and the problem that the individual lugs cannot be pressed flat in place can occur after bending. The manual operation mode has low efficiency, low yield and poor consistency.

Therefore, in view of the defects of the prior art, the present embodiment provides a bending apparatus, so as to bend the cell tab 101 or the connecting sheet of the cell 10 relative to the cell body 102, and the bending quality of the tab can be effectively ensured. The battery core tab 101 is an important component of a lithium ion battery core, the battery core tab 101 is a metal conductor which is led out from a battery core 10 and is used for leading positive and negative electrodes out, namely, a contact point of the battery core during charging and discharging, and in the production process, the battery core tab 101 needs to be bent, namely, the battery core tab 101 is bent, so that the battery core tab 101 is attached to a battery core body 102.

Fig. 3 is a schematic structural diagram of a battery cell, where the battery cell includes a battery cell body 102, a battery cell tab 102 is disposed at one end of the battery cell body 102, the battery cell body 102 is connected to a top cover 103 through the battery cell tab 101, and a terminal post 104 is disposed on the top cover 103.

Referring to fig. 1 and 2, a bending apparatus includes: a carrying mechanism 100 and a bending mechanism 200. The supporting mechanism 100 is formed with a cell supporting surface 110 for supporting the battery cell 10. Bending mechanism 200 includes kink 210 and drive division 220, and kink 210 is located the one end of electric core loading face 110, and drive division 220 can drive kink 210 rotatory to drive electric core utmost point ear 101 and buckle.

Specifically, the bearing mechanism 100 includes a frame 120 and a bearing table 130 disposed on the frame 120, and a top surface of the bearing table 130 forms the cell bearing surface 110. The rack 120 is mainly used for supporting and mounting the bearing table 130, the rack 120 includes a base plate 121 and a supporting column 122 disposed on the base plate 121, a top plate 123 is disposed on the top of the supporting column 122, a plurality of first supporting plates 124 disposed perpendicular to the top plate 123 are disposed on the top plate 123, the first supporting plates 124 are disposed along the width direction of the bearing table 130, the bearing table 130 is supported by the first supporting plates 124, and a spaced space region is formed between the bearing table 130 and the top plate.

The first support plates 124 are spaced apart in the width direction of the carrier table 130, and the first support plates 124 are disposed at both ends of the top plate 123, so that the stability and reliability of the support of the first support plates 124 can be ensured, while the space region formed between the bottom surface of the carrier table 130 and the top surface of the top plate 123 is partitioned and the stopper and the power part are installed together by means of the first support plates 124, saving space and making it possible to be hidden in the space region between the carrier table 130 and the top plate. Of course, the form of the frame 120 is not limited to the above-described structure as long as the manner of supporting the bearing table 130 can be satisfied.

The cell loading surface 110 of the cell loading platform 130 is configured to be supported by the lower side of the cell body 102, and of course, as is easily understood, the cell loading surface 110 includes a first loading surface and a second loading surface, the first loading surface and the second loading surface are arranged in a step surface manner, the first loading surface is higher than the second loading surface, the first loading surface and the second loading surface are both distributed along the length direction of the cell loading platform 130, the cell body is placed on the first loading surface, and the second loading surface is butted with the opening of the clamping portion 230.

It is easy to understand that the bending apparatus further includes a limiting portion 140, the limiting portion 140 is disposed on two sides of the cell bearing surface 110, and the limiting portion 140 is disposed higher than the cell bearing surface 110. Referring to the figure, spacing 140 sets up the both sides at first face of placing, spacing 140 sets up along the length direction parallel extension of first face of placing, spacing 140 can be connected through modes such as dismantling with the both sides of plummer 130, two spacing 140 and the common combination of electric core loading end 110 form a fixed spill region of centre gripping, after electric core body places on electric core loading end 110, can restrict it through spacing 140 and remove about, thereby can avoid removing when kink 210 buckles the operation, avoid the defective character to warp, can make electric core utmost point ear 101 fashioned uniformity better, the yields is higher.

Of course, it is easily understood that the number of the limiting parts 140 and the length of the limiting parts 140 are not limited herein, and the requirement can be met as long as the requirement for limiting, clamping and fixing the cell body can be met, and a flexible layer can be disposed on the inner side of the limiting parts 140 as required.

In some embodiments, the bending apparatus further includes a power unit 150, and the power unit 150 can drive the limiting unit 140 to move along the width direction of the cell carrying surface 110 to clamp and limit the cell. Power portion 150 can adopt the sharp subassembly that sets up along the 110 width direction of electric core loading end, for example, the screw, linear guide, linear electric motor and cylinder isotructure, can drive spacing portion 140 through power portion 150 and remove, thereby make spacing portion 140 be close to or keep away from the side of plummer 130 along the linear direction, adjust the degree that compresses tightly of spacing portion 140 to electric core, can adapt to the electric core of different specifications, the holistic commonality of equipment of bending has been promoted, and can adjust the pressure of spacing portion 140 to electric core body, avoid excessive pressure.

Referring to fig. 2, the limiting part 140 includes a first limiting part and a second limiting part, the first limiting part and the second limiting part are disposed on two opposite sides of the battery cell carrying surface 110, and the power part 150 is a cylinder. The cylinder is installed through aforementioned first backup pad 124, and the cylinder sets up along the length direction of first backup pad 124, and the cylinder is installed through first backup pad 124 and roof 123, and the first spacing portion of both ends installation of cylinder and second are spacing respectively. First spacing portion is close to the outside setting in the picture, first spacing portion includes first sliding plate and first limiting plate, first sliding plate is the T type form, the vertical part of first sliding plate is provided with the mounting groove, first sliding plate is connected with the output of cylinder, thereby control the removal about driving first sliding plate through the cylinder, the horizontal part of first sliding plate is provided with the spout, first limiting plate is installed in the spout, and can slide along the spout, be provided with the recess in the middle of the structure of first limiting plate, first limiting plate can be along spout adjusting position. Of course, the second limiting portion includes a second sliding plate and a second limiting plate, the second sliding plate is similar to the first sliding plate in shape, and the second limiting plate is a long plate. The structures of the first limiting plate and the second limiting plate can be arranged according to actual needs, and are not limited here. The first sliding plate and the second sliding plate are driven to move through the air cylinder, so that the first limiting plate and the second limiting plate are driven to be opened and clamped, and automatic clamping is achieved.

In this embodiment, when bending of electric core utmost point ear 101, at first place electric core on electric core loading face 110, drive division 220 drive kink 210 is rotatory to drive electric core utmost point ear 101 and bend, accomplish electric core utmost point ear 101's arrangement action, can accomplish electric core utmost point ear 101's arrangement action high-efficiently through this equipment of bending, the uniformity is good, and the yields is high.

In some embodiments, the bending portion 210 includes a connecting plate 211 and side plates 212 located at two sides of the connecting plate 211, the side plates 212 are perpendicular to the connecting plate 211, the side plates 212 are located at the same side of the connecting plate 211, the connecting plate 211 and the side plates 212 are combined to form a concave shape, and the driving portion 220 can drive the side plates 212 to rotate. Curb plate 212 is located the both sides of electric core loading end 110, and two relative curb plates 212 that set up are connected to connecting plate 211, and drive division 220 can drive one of them curb plate 212 rotatory, makes two curb plates 212 follow synchronous rotations through connecting plate 211 to realize the rotation of the whole of kink 210, finally drive electric core utmost point ear and buckle. Of course, the connection plate 211 and the side plate 212 may be formed of an integrally formed concave plate structure, or the connection plate 211 and the side plate 212 may be formed by being detachably combined.

Referring to fig. 2, the bending mechanism 200 includes a second support plate 250 and a mounting plate 230, the mounting plate 230 is vertically disposed on the second support plate 250, the mounting plate 230 is mounted with a bending portion 210 and a driving portion 220, and the mounting plate 230 is formed with an accommodating space for the bending portion 210 to rotate. The mounting plate 230 is relatively vertically arranged on the second support plate 250 to form an accommodating space, the bending part 210 is located in the accommodating space of the mounting plate 230, and two ends of the bending part are rotatably connected with the mounting plate 230, the bending part 210 is a concave plate structure formed by integral forming, the opening direction of the concave plate structure is arranged towards the battery cell bearing surface 110, the side plates 212 of the concave plate structure are respectively rotatably connected with the mounting plate 230, the driving part 220 is arranged on the outer side of the mounting plate 230, and the output end of the driving part 260 is rotatably connected with the side plates 212.

Referring to fig. 1 and fig. 2, specifically, on one hand, the second support plate 250 is used to support the whole bending mechanism 200, and meanwhile, the second support plate can also be used as a slider to drive the bending mechanism 200 to approach or be away from the battery cell carrying surface 110, a concave opening is provided at one end of the second support plate 250, mounting ports are provided at two sides of the concave opening, and the mounting plate 230 is mounted through the mounting ports. The mounting plate 230 includes a first mounting plate located on the outer side in the drawing, and a second mounting plate rotatably mounted with the side plate 212 via a rotating shaft. The second mounting plate is located near the inner side in the figure, the area of the second mounting plate is larger than that of the first mounting plate, the driving portion 220 is mounted on the outer side of the second mounting plate, the other side plate 212 is connected with the second mounting plate through a rotating shaft, and the rotating shaft and an output shaft of the driving portion 220 can be connected through structures such as a coupler or a gear reduction box to transmit power, so that the driving portion 220 drives the bending portion 210 to rotate. The driving unit 220 may be configured by a rotary motor or a rotary cylinder.

The conventional tab bending mechanism is a manual mechanism, does not have an automatic positioning mechanism, and can only bend the tab which is positioned manually under the manual operation of an operator, so that the control of the tab bending step height and the bending angle mainly depends on the eye force and experience of the operator, the tab is easy to damage or even break due to improper operation during bending, and the yield of finished batteries is reduced.

In some embodiments, a positioning portion 240 is disposed on one side of the connecting plate 212 facing the battery cell bearing surface 110, the positioning portion 240 is matched with the terminal 104 for positioning, the battery cell can be accurately positioned by the positioning portion 240, and then the battery cell tab can be accurately and automatically bent, so that the influence of human factors on the bending quality is avoided, and the damage and fracture of the battery cell tab are effectively prevented. Specifically, the positioning portion 240 includes a sliding portion 241 and two supporting blocks 242, the sliding portion 241 is disposed along the length direction of the connecting plate 212, and the supporting blocks 242 can slide relatively or oppositely along the sliding portion 241. Initially, the top cover 103 is placed on the supporting blocks 242, the supporting blocks 242 support the top cover 103, and the two supporting blocks 242 are matched with the pole 104 on the battery cell to be positioned, so that the bending quality is guaranteed.

Specifically, the sliding part 241 is a cylinder, the output direction of the cylinder is parallel to the width direction of the battery cell bearing surface 110, the bearing blocks 242 include sliding blocks and clamping blocks perpendicular to the sliding blocks, the sliding blocks can slide through the cylinder driving, and the two bearing blocks 242 can be close to or away from each other through the cylinder driving, so that the two clamping blocks can be close to or away from each other, and the pole on the battery cell is matched to complete the positioning action, thereby ensuring the bending quality. Of course, the sliding portion 241 may be replaced by a guide rail, a lead screw, or the like.

In some of these embodiments, bending device further includes a sensor 310 and a sensing tab 320, sensor 310 and sensing tab 320 cooperating to sense the position of bend 210. Specifically, the sensor 310 is a groove sensor, the sensor 310 is disposed on the inner side of the second mounting plate, and the sensor 310 and the sensing tab 320 cooperate to sense whether the bent portion 210 is in the initial position.

In some of these embodiments, the bending apparatus further comprises a traverse module 400, the bending mechanism 200 being mounted at an actuation end of the traverse module 400, the traverse module 400 being configured to drive the bending mechanism 200 horizontally toward or away from the carriage mechanism 100. Sideslip module 400 is single-axis manipulator, and the second backup pad 250 of mechanism 200 of bending is installed at single-axis manipulator's output, makes second backup pad 250 can be close to or keep away from electric core loading face 110 through single-axis manipulator drive. After the rotatory back of buckling of electric core utmost point ear, sideslip module 400 promotes kink 210 and gos forward and predetermine the stroke, guarantees to bend and targets in place.

Easily understand the ground, equipment of bending still includes lift module 500, lift module 500 is used for driving the vertical direction motion of mechanism 200 of bending, and sideslip module 400 can be installed in lift module 500's lift portion, drives sideslip module 400 through lift module 500 and goes up and down to drive mechanism 200 of bending and go up and down, through sideslip module 400 and lift module 500 respectively in level and vertical direction drive kink 210 removal, thereby avoid a position unloading on the electric core, prevent that electric core and kink 210 from colliding. Wherein, sideslip module 400 and lift module 500 all can adopt mechanisms such as unipolar manipulator or linear guide or linear cylinder.

Referring to fig. 1 and 2, the equipment of bending, including bearing mechanism 100, the mechanism 200 of bending, first unipolar manipulator and second unipolar manipulator drive the mechanism 200 of bending respectively in level and vertical direction and remove, keep away the last unloading of a position electric core, prevent that electric core and the mechanism 200 of bending from colliding, the mechanism 200 of bending includes the motor, the kink, the cylinder, the bearing piece, motor drive kink is rotatory, and then it is rotatory to drive cylinder and bearing piece, two bearing pieces are installed at the cylinder execution end, the cylinder drives two bearing pieces and removes and accomplish the location action with the utmost point post cooperation on the electric core, guarantee the quality of bending, after the kink drives electric core utmost point ear rotation bending, first unipolar machinery hand is pushed the kink and is advanced and is predetermine the stroke, guarantee to buckle and target in place. This equipment of bending realizes that utmost point ear once bends through above design and targets in place, has simplified the structure setting, has reduced the hardware cost of equipment, and the occupation space of equipment that has significantly reduced has improved production efficiency.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. A bending apparatus, comprising:

the bearing mechanism is provided with a battery cell bearing surface for bearing a battery cell; and

the bending mechanism comprises a bending part and a driving part, the bending part is located at one end of the battery cell bearing surface, and the driving part can drive the bending part to rotate so as to drive the battery cell lug or the connecting sheet to be bent.

2. The bending apparatus according to claim 1, wherein: the kink includes the connecting plate and is located the curb plate of connecting plate both sides, the curb plate with the connecting plate forms concave shape, drive division can drive the curb plate rotates.

3. The bending apparatus according to claim 1, wherein: the bending mechanism comprises an installation plate, the bending part and the driving part are installed on the installation plate, and an accommodating space is formed in the installation plate for the bending part to rotate.

4. The bending apparatus according to claim 3, wherein: the bending equipment further comprises a sensor and an induction sheet, the sensor is arranged on the mounting plate, the induction sheet is arranged on the bending part, and the induction sheet is matched with the sensor to induce the position of the bending part.

5. The bending apparatus according to claim 2, wherein: one side of the connecting plate, which faces the battery cell bearing surface, is provided with a positioning part, and the positioning part is matched and positioned with the pole.

6. The bending apparatus according to claim 5, wherein: the positioning part comprises a sliding part and two bearing blocks, the sliding part is arranged along the length direction of the connecting plate, and the bearing blocks can slide relatively or oppositely along the sliding part.

7. The bending apparatus according to any one of claims 1 to 6, wherein: the bending equipment further comprises limiting parts, the limiting parts are arranged on two sides of the battery cell bearing surface, and the limiting parts are higher than the battery cell bearing surface.

8. The bending apparatus according to claim 7, wherein: the bending equipment further comprises a power part, and the power part can drive the limiting part to move in the width direction of the battery cell carrying surface so as to clamp the limiting battery cell.

9. The bending apparatus according to claim 1, wherein: the bending equipment further comprises a transverse moving module, the bending mechanism is installed at an execution end of the transverse moving module, and the transverse moving module is used for driving the bending mechanism to be close to or far away from the bearing mechanism in the horizontal direction.

10. Bending apparatus according to claim 1 or 9, wherein: the bending equipment further comprises a lifting module, and the lifting module is used for driving the bending mechanism to move in the vertical direction.

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