CN220427347U - Welding tool for electric core pole - Google Patents

Abstract

The application relates to a welding tool for a battery core pole, which comprises a base, a first support frame, a second support frame, a turnover frame, an upper clamping assembly and a lower clamping assembly; the first support frame and the second support frame are fixed on the base and oppositely arranged, two ends of the turnover frame are respectively connected with the first support frame and the second support frame in a rotating mode, the middle area of the turnover frame is hollowed out to form an accommodating space for accommodating the battery cells to be welded, the turnover frame comprises an upper top surface and a lower bottom surface which are opposite, the upper clamping assembly is detachably arranged on the upper top surface of the turnover frame and located above the accommodating space, the lower clamping assembly is fixed on the lower bottom surface of the turnover frame and located below the accommodating space, the lower clamping assembly and the upper clamping assembly jointly clamp the battery cells to be welded, the turnover frame is rotated to drive the upper clamping assembly and the lower clamping assembly to overturn, and therefore the turnover of the battery cells to be welded is achieved, all battery cells can be turned once, operation is simple, turnover time is greatly saved, and production efficiency is improved.

Description

Welding tool for electric core pole

Technical Field

The application relates to the technical field of electric energy, in particular to a welding tool for a battery cell pole.

Background

The power battery is used as a power source and is a core component of the new energy electric automobile. The welding of the battery core electrode post is an indispensable step in the manufacturing process of the power battery, and the performance and the safety of the electric automobile are directly related. At present, in the process of welding the pole, a battery core is usually placed on a welding platform, and then the battery core is pressed by using a pressing tool and then the welding platform is pushed into a welding room to weld the pole. After the positive pole is welded, the welding platform is pushed out, after the pressing tool is taken down, each cell is manually turned over, then the cell is pressed by the pressing tool and then pushed into the welding room to be welded with the negative pole, the whole process is complex in operation, long in time consumption and low in production efficiency.

Disclosure of Invention

Based on this, it is necessary to provide a welding fixture for the battery cell pole to solve the above technical problems, so that all battery cells can be turned over at one time, the operation is simple, the turning time is greatly saved, and the production efficiency is improved.

In a first aspect, the application provides a welding fixture for a battery cell pole, which comprises a base, a first support frame, a second support frame, a turnover frame, an upper clamping assembly and a lower clamping assembly;

the first support frame and the second support frame are fixed on the base and are oppositely arranged, two ends of the turnover frame are respectively connected with the first support frame and the second support frame in a rotating way, the middle area of the turnover frame is hollowed out to form an accommodating space, the turnover frame comprises an upper top surface and a lower bottom surface which are opposite, the upper clamping component is detachably arranged on the upper top surface of the turnover frame and is positioned above the accommodating space, the lower clamping assembly is fixed on the lower bottom surface of the turnover frame and is located below the accommodating space, a plurality of battery cells to be welded are clamped in the accommodating space of the turnover frame together with the upper clamping assembly, the turnover frame is rotated to drive the upper clamping assembly and the lower clamping assembly to turn over, and therefore the turnover of the battery cells to be welded is achieved.

Further, the upper clamping assembly and the lower clamping assembly comprise clamping plates, a plurality of supporting blocks and a plurality of elastic mechanisms;

every supporting shoe is movably installed on the clamping face of splint through at least one elastic mechanism, go up clamping assembly and lower clamping assembly's supporting shoe one-to-one setting, and two supporting shoes that correspond the setting are used for jointly centre gripping one to wait to weld the electric core, be equipped with first through-hole on the supporting shoe, be equipped with on the splint with the second through-hole that first through-hole corresponds for wait to weld the solder joint of electric core and expose via first through-hole and the second through-hole that corresponds.

Further, the elastic mechanism comprises a supporting spring, a connecting column and a hollow sleeve;

the support block is provided with a first connecting hole on one surface facing the clamping plate, a second connecting hole corresponding to the first connecting hole is formed in the clamping surface of the clamping plate, a first clamping table is arranged on the inner wall of the second connecting hole, a second clamping table is arranged on the outer wall of one end of the sleeve, the other end of the sleeve is inserted into the second connecting hole from the clamping surface of the clamping plate, the second clamping table is clamped on the first clamping table, one end of the connecting column is inserted into the sleeve, the other end of the connecting column is inserted into the first connecting hole, the diameter of the supporting spring is larger than that of the first connecting hole, and the supporting spring is sleeved on the connecting column and is positioned between the second clamping table and the supporting block so as to support the supporting block;

the second connecting hole is a non-penetrating hole; or, the second connecting hole is a through hole penetrating through the clamping plate, the clamping plate comprises a back surface opposite to the clamping surface, and the opening of the second connecting hole positioned on the back surface of the clamping plate is provided with a cover plate so as to cover and seal the second connecting hole.

Further, the support block is equipped with hollow reference column on the one side of splint dorsad, be equipped with the boss on the outer wall of reference column, boss and support block fixed connection, the reference column inserts in locating the first through-hole on the support block.

Further, a first locating pin and a second locating pin for locating the battery cell to be welded are further arranged on the clamping surface of the clamping plate of the lower clamping assembly.

Further, a rotating hole is formed in each of the first support frame and the second support frame, a bearing is arranged in each rotating hole, the bearing is connected with a rotating shaft, and one end of each rotating shaft is connected with a fixing seat; two ends of the turnover frame are fixedly connected with the fixing seats on the first support frame and the second support frame respectively;

the other end of the rotating shaft on the first support frame or the second support frame is connected with a hand wheel; the base is provided with a movable wheel.

Further, a protection mechanism is arranged on two opposite sides of the turnover frame, and comprises a protection plate, a mounting seat, a push rod, a push plate, a first reset spring, a sliding block, a bolt and a bolt seat;

the mounting seat is fixed on the turnover frame, a first sliding hole and a second sliding hole which are parallel in the hole depth direction are formed in the mounting seat, the push rod penetrates through the first sliding hole in a sliding mode, one end of the push rod extends towards the accommodating space and is connected with the protection plate, the other end of the push rod is connected with the push plate, the first reset spring is sleeved on the push rod and is located between the mounting seat and the push plate, the first end of the slide block is inserted into the second sliding hole in a sliding mode, and the second end of the slide block is connected with the push plate; the push plate is pushed to drive the push rod and the sliding block to slide along the first sliding hole and the second sliding hole respectively, so that the protection plate is pushed to move towards the accommodating space until the protection plate is pressed on the battery cell to be welded in the accommodating space;

the utility model discloses a welding device for the battery cell, including installation space, bolt seat, slider, first reset spring, second end, guard plate, bolt seat, limit groove, be equipped with on the bolt seat, be equipped with the bolt hole on the bolt seat, be equipped with the spacing groove on the slider, the first end of bolt slides and passes the bolt hole, the second end of bolt is in the guard plate compresses tightly when waiting to weld the battery cell in the accommodation space to insert and locate in the spacing groove, in order to restrict the slip of slider, and when the guard plate compresses tightly wait to weld on the battery cell in the accommodation space first reset spring is in by compressed state.

Further, the protection mechanism further comprises an adjusting bolt, and the second end of the sliding block is connected with the push plate through the adjusting bolt;

the second end of the sliding block is provided with a threaded hole, the push plate is provided with a third sliding hole, one end of the adjusting bolt is provided with a nut, the diameter of the nut is larger than that of the third sliding hole, the other end of the adjusting bolt passes through the third sliding hole in a sliding manner and is in threaded connection with the threaded hole of the sliding block, the adjusting bolt is in threaded connection with a nut, the diameter of the nut is larger than that of the third sliding hole, and the nut is positioned between the sliding block and the push plate;

further, be equipped with bellied stopper on the bolt, the stopper is adjacent the second end of bolt, protection machanism still includes second reset spring, second reset spring cover is established on the bolt and is located between stopper and the bolt seat.

Further, a first connecting piece is arranged between the first supporting frame and the turnover frame, one end of the first connecting piece is in threaded connection with the first supporting frame, and the other end of the first connecting piece is in threaded connection with the turnover frame; the second connecting piece is arranged between the second supporting frame and the overturning frame, one end of the second connecting piece is in threaded connection with the second supporting frame, and the other end of the second connecting piece is in threaded connection with the overturning frame.

The above describes a welding fixture for a battery core pole, comprising a base, a first support frame, a second support frame, a turnover frame, an upper clamping assembly and a lower clamping assembly; the utility model provides a battery cell welding device, including base, flip frame, first support frame and second support frame, flip frame, first support frame and second support frame are fixed on the base and set up relatively, flip frame's both ends rotate with first support frame and second support frame respectively, flip frame's middle zone fretwork is in order to form the accommodation space that is used for holding the battery cell that waits to weld, flip frame includes relative top surface and lower bottom surface, go up clamping assembly demountable installation and be located flip frame's top surface just be located accommodation space top, down clamping assembly fixes the lower bottom surface of flip frame and be located accommodation space below, in order with last clamping assembly presss from both sides a plurality of battery cells that wait to weld in flip frame's accommodation space jointly, through rotating flip frame with drive flip assembly and lower clamping assembly upset, and then realize a plurality of battery cells that wait to weld, consequently, through this application, after accomplishing one kind of post (like positive post) welding, only need rotate flip frame, can once only with all battery cells overturns to weld another post (like the negative post), and need not overturn manual operation to be simple one by one, save production efficiency greatly, save time.

Drawings

Fig. 1 is a schematic structural diagram of a welding tool for a battery cell electrode post provided by the application;

fig. 2 is a schematic structural diagram of another view angle of the welding tool for the electrical core pole shown in fig. 1;

FIG. 3 is a schematic view of the structure of the lower clamping assembly of the present application;

FIG. 4 is a partially exploded view of the lower clamp assembly of the present application;

FIG. 5 is an exploded view of the spring mechanism of the present application;

fig. 6 is an exploded schematic view of a part of the structure of the welding tool for the electrical core pole of the present application;

FIG. 7 is a schematic view of the combination of the protective mechanism and the flip frame of the present application;

fig. 8 is a schematic structural view of the protection mechanism of the present application.

Reference numerals in the embodiments of the present application are described below:

welding fixture: 100; and (2) base: 11; first support frame: 12; and (3) rotating the hole: 121; and (3) bearing: 122, a step of; and (2) rotating shaft: 123, a step of; the fixing base is as follows: 124; and (3) a hand wheel: 125; the second support frame: 13; overturning the frame: 14; accommodation space: 140; upper top surface: 141; the bottom surface: 142; upper clamping assembly: 15; clamping plate: 151; and (3) supporting blocks: 152; an elastic mechanism: 153; the lower clamping assembly: 16; clamping plate: 161; and a second through hole: 1611; a second connection hole: 1612; the first clamping table: 1613; cover plate: 1614; first locating pin: 1615; and a second positioning pin: 1616; and (3) supporting blocks: 162; a first through hole: 1621; a first connecting hole: 1622; an elastic mechanism: 163; supporting springs: 1631; connection column: 1632; a sleeve: 1633; the second clamping table: 1634; positioning column: 164, a step of detecting the position of the base; boss: 165; protection mechanism: 17; a protection plate: 171; buffer layer: 1715; and (2) a mounting seat: 172; first sliding hole: 1721; second sliding hole: 1722; push rod: 173, a part of the base; a push plate: 174; third sliding hole: 1741; a first return spring: 175; and (3) sliding blocks: 176; limit groove: 1761; a bolt: 178; limiting block: 1781; a latch base: 179; adjusting bolt: 1710, a step of; and (3) a nut: 1711; and (3) a nut: 1712; a second return spring 1713; a handle: 1714; a first connector: 181; and a second connecting piece: 182; and (3) moving the wheel: 19; support seat one: 21, a step of; and a second support seat 22.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

In the manufacturing process of the battery, the to-be-welded battery core is pressed by a tool, then the to-be-welded battery core is sent to welding equipment, and the positive electrode post and the negative electrode post are welded at two ends of the battery core of the battery respectively by the welding equipment. The embodiment of the application provides a battery cell pole welding frock for press from both sides tightly wait to weld the battery cell, so that welding equipment carries out pole welding. The welding tool comprises a base, a first supporting frame, a second supporting frame, a turnover frame, an upper clamping assembly and a lower clamping assembly; the device comprises a base, a first support frame, a second support frame, a turnover frame, a lower clamping assembly, a plurality of battery cells to be welded, a rotating frame, a clamping assembly and a clamping assembly, wherein the first support frame and the second support frame are fixed on the base and are oppositely arranged, two ends of the turnover frame are respectively connected with the first support frame and the second support frame in a rotating mode, the middle area of the turnover frame is hollowed out to form an accommodating space for accommodating the battery cells to be welded, the turnover frame comprises an upper top surface and a lower bottom surface which are opposite, the upper clamping assembly is detachably arranged on the upper top surface of the turnover frame and is located above the accommodating space, the lower clamping assembly is fixed on the lower bottom surface of the turnover frame and is located below the accommodating space, the battery cells to be welded are clamped in the accommodating space of the turnover frame together by the upper clamping assembly, and the lower clamping assembly are driven to overturn by rotating the turnover frame, and then overturning of the battery cells to be welded.

Therefore, through the electric core post welding frock of this application, after accomplishing one of them utmost point post (like anodal post) welding, only need rotate the upset frame, can once only overturn all electric cores to weld another kind of utmost point post (like the negative pole post), and need not to manually overturn electric core one by one, easy operation saves the time of upset greatly, improves production efficiency.

The electrical pole welding fixture of the present application will be described in detail below.

Referring to fig. 1 and 2, an embodiment of the present application provides a welding fixture 100 for a battery cell pole, which includes a base 11, a first supporting frame 12, a second supporting frame 13, a turnover frame 14, an upper clamping assembly 15 and a lower clamping assembly 16.

The first support frame 11 and the second support frame 12 are fixed on the base 11 and are oppositely arranged, two ends of the turnover frame 14 are respectively connected with the first support frame 11 and the second support frame 12 in a rotating mode, the middle area of the turnover frame 14 is hollowed out to form an accommodating space 140 for accommodating a plurality of battery cores to be welded, the turnover frame 14 comprises an upper top surface 141 and a lower bottom surface 142 which are opposite, the upper clamping assembly 15 is detachably arranged on the upper top surface 141 of the turnover frame 14, the upper clamping assembly 15 is located above the accommodating space 140, the lower clamping assembly 16 is fixed on the lower bottom surface 142 of the turnover frame 14, the lower clamping assembly 16 is located below the accommodating space, the battery cores to be welded are clamped in the accommodating space 140 of the turnover frame 14 together by the upper clamping assembly 15, the turnover frame 14 is rotated to drive the upper clamping assembly 15 and the lower clamping assembly 16 to turn over, and therefore the turnover of the battery cores to be welded is achieved.

Therefore, through the electric core polar column welding tool 100 of the application, after one polar column (such as the positive polar column) is welded, all electric cores to be welded can be turned over once only by rotating the turning frame 14, so that the other polar column (such as the negative polar column) is welded, the electric cores are not required to be turned over one by one manually, the operation is simple, the turning time is greatly saved, and the production efficiency is improved.

Alternatively, as shown in fig. 1, a first support seat 21 is fixed to both ends of the upper top surface 141 of the turnover frame 14, and a second support seat 22 is fixed to both ends of the lower top surface 142. Both ends of the upper clamping assembly 15 are detachably mounted on the first support seats 21 at both ends of the upper top surface 141, respectively, for example, the upper clamping assembly 15 may be detachably mounted on the first support seats 21 by screwing. The two ends of the lower clamping assembly 16 are respectively fixed on the second support seat 22 at two ends of the lower top surface 142, wherein the fixing manner can be, for example, screwing, welding or riveting.

Further, as shown in fig. 2 and 3, the upper and lower clamping assemblies 15 and 16 each include a clamping plate, a plurality of supporting blocks, and a plurality of elastic mechanisms, and in particular, the upper clamping assembly 15 includes a clamping plate 151, a plurality of supporting blocks 152, and a plurality of elastic mechanisms 153, and the lower clamping assembly 16 includes a clamping plate 161, a plurality of supporting blocks 162, and a plurality of elastic mechanisms 163. The following description of the connection between the clamping plate, the support block and the elastic mechanism is given by way of example of the clamping assembly 16.

Each of the support blocks 162 is movably mounted on the clamping surface of the clamping plate 161 by at least one elastic mechanism 163, wherein in the embodiment of the present application, the support blocks 162 have a substantially square structure, each of the support blocks 162 is mounted on the clamping surface of the clamping plate 161 by two elastic mechanisms 163, and the two elastic mechanisms are respectively located at diagonal positions of the support blocks 162. The supporting block 162 can be moved up and down with respect to the clamping plate 161 by the elastic action of the elastic mechanism 163. The supporting blocks 152 of the upper clamping assembly 15 and the supporting blocks 162 of the lower clamping assembly 16 are arranged in a one-to-one correspondence, and the two supporting blocks arranged correspondingly are used for clamping one cell to be welded together, so that the plurality of cells to be welded can be clamped through the plurality of supporting blocks 152 and the plurality of supporting blocks 162. Through the elastic action of the elastic mechanisms 153 and 163, errors generated in the height direction of the multiple battery cores to be welded in the assembly process can be absorbed, and each battery core to be welded can be pressed by two corresponding supporting blocks.

Each supporting block 162 is provided with a first through hole 1621, and the clamping plate 161 is provided with a plurality of second through holes 1611 corresponding to the first through holes 1621 one by one, so that the welding point of each to-be-welded cell is exposed through the corresponding first through hole 1621 and second through hole 1611. Further, the welding point of the battery cell to be welded is a welding area for welding with the pole, the welding point at one end of the battery cell to be welded is exposed through the corresponding first through hole and second through hole in the upper clamping assembly 15, and the welding point at the other end is exposed through the corresponding first through hole 1621 and second through hole 1611 in the lower clamping assembly 16, so that the welding device can weld the pole on the exposed welding point.

Continuing with the example of the clamping assembly 16, in the present embodiment, as shown in fig. 4 and 5, the spring mechanism 163 includes a support spring 1631, a connecting post 1632, and a hollow sleeve 1633.

The side of the supporting block 162 facing the clamping plate 161 is provided with a first connecting hole 1622, and in one implementation, the first connecting hole 1622 is a through hole penetrating the supporting block 162. The clamping surface of the clamping plate 16 is provided with a second connecting hole 1612 corresponding to the first connecting hole 1622, a first clamping table 1613 is arranged on the inner wall of the second connecting hole 1612, a second clamping table 1634 is arranged on the outer wall of one end of the sleeve 1633, the other end of the sleeve 1633 is inserted into the second connecting hole 1612 from the clamping surface of the clamping plate 161, the second clamping table 1634 is clamped on the first clamping table 1613, one end of the connecting column 1632 is inserted into the sleeve 1633, the other end is inserted into the first connecting hole 1622, the diameter of the supporting spring 1631 is larger than that of the first connecting hole 1622, and the supporting spring 1631 is sleeved on the connecting column 1632 and is positioned between the second clamping table 1634 and the supporting block 162 so as to support the supporting block 162.

In one implementation, the second connection hole 1612 is a non-through hole. Alternatively, in other implementations, the second connecting hole 1612 is a through hole penetrating the clamping plate 161, the clamping plate 161 includes a back surface opposite to the clamping surface, as shown in fig. 2, and an opening of the second connecting hole 1612 located at the back surface of the clamping plate 161 is provided with a cover plate 1614 to cover the second connecting hole 1612.

In order to facilitate further fixing of the to-be-welded battery cell, a hollow positioning column 164 is further arranged on one surface of the supporting block 162, which is opposite to the clamping plate 161, a boss 165 is arranged on the outer wall of the positioning column 164, the boss 165 is fixedly connected with the supporting block 162, and the positioning column 164 is inserted into a first through hole 1621 on the supporting block 162. Wherein the positioning post 164 and boss 165 may be integrally formed. The cell to be welded is clamped between the positioning column in the upper clamping assembly 15 and the positioning column in the lower clamping assembly 16.

It is understood that the specific structure and the positional connection relationship of the clamping plate, the supporting block, the elastic mechanism, the positioning column and the boss in the upper clamping assembly 15 are the same as those of the clamping plate, the supporting block, the elastic mechanism, the positioning column and the boss in the lower clamping assembly 16, and will not be described in detail.

In this embodiment, as shown in fig. 3, the clamping surface of the clamping plate 161 of the lower clamping assembly 16 is further provided with a first positioning pin 1615 and a second positioning pin 1616 for positioning the battery cell to be welded. The first positioning pin 1615 may be, for example, a taper pin, and the second positioning pin 1616 may be, for example, a trimming taper pin. In practical application, a plurality of to-be-welded electric cores can be fixed together through a plastic bracket, so as to form an electric core group, and positioning holes corresponding to the first positioning pins 1615 and the second positioning pins 1616 are formed in the plastic bracket. The battery cell group is placed on the lower clamping plate assembly 16, that is, each battery cell to be welded is placed on each positioning column 164 of the lower clamping plate assembly 16, so that the first positioning pin 1615 and the second positioning pin 1616 are respectively inserted into corresponding positioning holes on the plastic support, and the positioning of the battery cell group is realized.

Referring to fig. 6, the first support frame 12 and the second support frame 13 are respectively provided with a rotation hole, taking the first support frame 12 as an example, the first support frame 12 is provided with a rotation hole 121, a bearing 122 is disposed in the rotation hole 121, the bearing 122 is connected with a rotation shaft 123, and one end of the rotation shaft 123 is connected with a fixing seat 124. Two ends of the turnover frame 14 are fixedly connected with the fixed seats on the first support frame 12 and the second support frame 13 respectively; the other end of the rotating shaft 123 on the first supporting frame 12 is connected with a hand wheel 125.

The hand wheel 125 is rotated to drive the rotating shaft 123 to rotate, so that the rotating shaft 123 drives the fixing seat 124 to rotate, and further drives the turnover frame 14 to rotate. Therefore, when the battery core to be welded needs to be turned over, the hand wheel 125 can be operated to turn over, and the operation is more convenient.

Referring to fig. 7 and 8, in the embodiment of the present application, a protection mechanism 17 is disposed on opposite sides of the flip frame 14, and the protection mechanism 17 includes a protection plate 171, a mounting seat 172, a push rod 173, a push plate 174, a first return spring 175, a slider 176, a latch 178, and a latch seat 179.

The mounting seat 172 is fixed on the turnover frame 14, a first sliding hole 1721 and a second sliding hole 1722 parallel to each other in the hole depth direction are provided on the mounting seat 172, the push rod 173 penetrates through the first sliding hole 1721 in a sliding manner, one end of the push rod 173 extends towards the accommodating space 140 and is connected with the protection plate 171, the other end of the push rod 173 is connected with the push plate 174, the first return spring 175 is sleeved on the push rod 173 and is positioned between the mounting seat 172 and the push plate 174, the first end of the slider 176 is inserted into the second sliding hole 1722 in a sliding manner, and the second end of the slider 176 is connected with the push plate 174; the push plate 174 is pushed to drive the push rod 173 and the slider 176 to slide along the first sliding hole 1721 and the second sliding hole 1722, so as to push the protection plate 171 to move towards the accommodating space 140 until the protection plate 171 is pressed against the to-be-soldered cell in the accommodating space 140.

In order to prevent excessive pressing force from being applied to the battery cells to be soldered, a buffer layer 1715 is further provided on the protection plate 171, and the buffer layer 1715 may be, for example, a sponge.

The latch seat 179 is fixed on the mounting seat 172, a latch hole is formed in the latch seat 179, a limit groove 1761 is formed in the slider 176, a first end of the latch 178 slides through the latch hole, a second end of the latch 178 is inserted into the limit groove 1761 when the protection plate 171 is pressed against the to-be-welded cell in the accommodating space 140, so as to limit the sliding of the slider 176, and the first return spring 175 is in a compressed state when the protection plate 171 is pressed against the to-be-welded cell in the accommodating space 140.

Further, the guard mechanism 17 further includes an adjusting bolt 1710, the second end of the slider 176 is connected to the push plate 174 by the adjusting bolt 1710,

the second end of the slider 176 is provided with a threaded hole, the push plate 174 is provided with a third sliding hole 1741, one end of the adjusting bolt 1710 is provided with a nut 1711, the diameter of the nut 1711 is larger than that of the third sliding hole 1741, the other end of the adjusting bolt 1710 slides through the third sliding hole 1741 and is in threaded connection with the threaded hole of the slider 176, the adjusting bolt 1710 is in threaded connection with a nut 1712, the diameter of the nut 1712 is larger than that of the third sliding hole 1741, and the nut 1712 is located between the slider 176 and the push plate 174. It will be appreciated that the pusher plate 174 is movable along an adjustment bolt located between the nut 1712 and the nut 1711.

Optionally, a protruding stopper 1781 is provided on the latch 178, the stopper 1781 is adjacent to the second end of the latch, and the protection mechanism 17 further includes a second return spring 1713, where the second return spring 1713 is sleeved on the latch 178 and located between the stopper 1781 and the latch seat 179. Wherein a handle 1714 is also coupled to a first end of the latch 178, i.e., the end remote from the slider 176.

The working principle of the guard structure 17 will be further described below.

As shown in fig. 8, the protection structure 17 shown in fig. 8 is in a state when the protection plate 171 is pressed against the cell to be welded, at this time, the first return spring 175 is in a compressed state, and the latch 178 is inserted into the limit groove 1761 of the slider 176, so as to limit the slider 176 to slide, and since the slider 176 is fixedly connected with the push plate 174, the push plate 174 can be limited to move, so that the protection plate 171 can be always pressed against the cell to be welded. In addition, when the latch 178 is inserted into the limit groove 1761, the second return spring 1713 is in an original state, i.e., an uncompressed state.

The battery cells to be welded are clamped through the protective structures 17 on the two sides of the turnover frame 14, so that the battery cells are prevented from falling off from the side edges in the turnover process.

When the battery core is required to be taken out after welding is completed, the plug pins 178 are pulled out of the limit grooves 1761 through the handles 1714, so that the limit on the sliding blocks 176 is released, the push plate 174 moves towards the AB direction under the elastic action of the first reset springs 175, the protection plate 171 is pulled out through the push rod 173 to be separated from the battery core, at the moment, the end parts of the plug pins 178 are abutted against the outer surfaces of the sliding blocks 176, and the second reset springs 1713 are in a compressed state. When the battery core needs to be clamped, the push plate 174 is pushed along the CD direction, so that the push rod 173 and the slider 176 are pushed to slide, the protection plate 171 moves towards the battery core in the accommodating space 140 under the pushing of the push rod 173 until the protection plate 171 presses on the battery core, and at the moment, the end part of the plug pin 178 is aligned with the limit groove on the slider 176, and under the elastic force of the second reset spring 1713, the end part of the plug pin 178 is automatically inserted into the limit groove 1761.

The stroke of the push plate 174 and thus the stroke of the protection plate 171 can be adjusted by adjusting the bolts 1710 and the nuts 1712, so that the protection plate 171 can sufficiently press the battery cells to be welded. More specifically, when the nut 1712 is turned toward the slider 176, the distance between the nut 1712 and the nut 1711 may be increased, thereby increasing the travel of the pusher plate 174, whereas when the nut 1712 is turned toward the pusher plate 174, the distance between the nut 1712 and the nut 1711 may be decreased, thereby decreasing the travel of the pusher plate 174. Wherein the exposed length of the adjusting bolt 1710 can be adjusted by adjusting the bolt 1710 through a knob, thereby adjusting the movable stroke of the nut 1712.

With continued reference to fig. 1, in this embodiment of the present application, a first connecting member 181 is disposed between the first supporting frame 12 and the turnover frame 14, one end of the first connecting member 181 is in threaded connection with the first supporting frame 12, and the other end of the first connecting member 181 is in threaded connection with the turnover frame 14; a second connecting piece 182 is arranged between the second supporting frame 13 and the turnover frame 14, one end of the second connecting piece 182 is in threaded connection with the second supporting frame 13, and the other end of the second connecting piece 182 is in threaded connection with the turnover frame 14. Through the effect of first connecting piece 181 and second connecting piece 182, will overturn frame 14 and first support frame 12, second support frame 13 fixed connection to can prevent to overturn frame 14 and rock at will in the welding process, can stabilize upset frame 14.

In addition, in order to facilitate the movement of the whole welding fixture 100, four moving wheels 19 are also installed at the bottom of the base 11.

When the battery cells to be welded are required to be placed, all the battery cells to be welded can be fixed together by using a plastic bracket, so that a battery cell module is formed, then the upper clamping assembly 15 is disassembled, the battery cell module is placed on the lower clamping assembly 16, and the first positioning pin 1615 and the second positioning pin 1616 are inserted into the positioning holes on the plastic bracket of the battery cell module, so that the battery cell module is positioned, at the moment, each battery cell to be welded in the battery cell module is positioned on the positioning column 164 in the lower clamping assembly 16, then the upper clamping assembly 15 is mounted on the turnover frame 14 by screws, and the upper clamping assembly 15 and the lower clamping assembly 16 jointly clamp the battery cells to be welded. Afterwards, the welding tool 100 may be pushed into a welding room to perform pole welding, such as positive pole welding. After the welding of the positive electrode post is completed, the first connecting piece 181 and the second connecting piece 182 are removed, then the hand wheel 125 is rotated to turn the turnover frame 14 by 180 degrees, so that the battery core to be welded is turned by 180 degrees, then the first connecting piece 181 is mounted on the first supporting frame 12 and the turnover frame 14 through screws, and the second connecting piece 182 is mounted on the second supporting frame 13 and the turnover frame 14 through screws, and then the welding of the negative electrode post is performed. After the welding of the anode and cathode columns is completed, the welding tool 100 is pushed out of the welding room, the upper clamping assembly 15 is disassembled, and the welded battery cell can be taken out.

Therefore, through the welding fixture 100 of the application, the battery cells do not need to be turned one by one, all the battery cells can be turned once, the operation is convenient, the turning time is greatly saved, and the production efficiency is improved.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.

Claims (10)

1. The electric core pole welding tool is characterized by comprising a base, a first supporting frame, a second supporting frame, a turnover frame, an upper clamping assembly and a lower clamping assembly;

the first support frame and the second support frame are fixed on the base and are oppositely arranged, two ends of the turnover frame are respectively connected with the first support frame and the second support frame in a rotating mode, the middle area of the turnover frame is hollowed out to form an accommodating space for accommodating a battery cell to be welded, the turnover frame comprises an upper top surface and a lower bottom surface which are opposite, the upper clamping assembly is detachably arranged on the upper top surface of the turnover frame and is located above the accommodating space, and the lower clamping assembly is fixed on the lower bottom surface of the turnover frame and is located below the accommodating space; the lower clamping assembly and the upper clamping assembly jointly clamp the battery cell to be welded, and the upper clamping assembly and the lower clamping assembly are driven to overturn by rotating the overturning frame.

2. The electrical terminal welding fixture of claim 1, wherein the upper clamping assembly and the lower clamping assembly each comprise a clamping plate, a plurality of support blocks and a plurality of elastic mechanisms;

every supporting shoe is movably installed on the clamping face of splint through at least one elastic mechanism, go up clamping assembly and lower clamping assembly's supporting shoe one-to-one setting, and two supporting shoes that correspond the setting are used for jointly centre gripping one to wait to weld the electric core, be equipped with first through-hole on the supporting shoe, be equipped with on the splint with the second through-hole that first through-hole corresponds for wait to weld the solder joint of electric core and expose via first through-hole and the second through-hole that corresponds.

3. The electrical terminal welding fixture of claim 2, wherein the elastic mechanism comprises a support spring, a connecting post and a hollow sleeve;

the support block is provided with a first connecting hole on one surface facing the clamping plate, a second connecting hole corresponding to the first connecting hole is formed in the clamping surface of the clamping plate, a first clamping table is arranged on the inner wall of the second connecting hole, a second clamping table is arranged on the outer wall of one end of the sleeve, the other end of the sleeve is inserted into the second connecting hole from the clamping surface of the clamping plate, the second clamping table is clamped on the first clamping table, one end of the connecting column is inserted into the sleeve, the other end of the connecting column is inserted into the first connecting hole, the diameter of the supporting spring is larger than that of the first connecting hole, and the supporting spring is sleeved on the connecting column and is positioned between the second clamping table and the supporting block so as to support the supporting block;

the second connecting hole is a non-penetrating hole; or, the second connecting hole is a through hole penetrating through the clamping plate, the clamping plate comprises a back surface opposite to the clamping surface, and the opening of the second connecting hole positioned on the back surface of the clamping plate is provided with a cover plate so as to cover and seal the second connecting hole.

4. The welding fixture for the battery cell pole according to claim 2, wherein a hollow positioning column is further arranged on one surface of the supporting block, which is opposite to the clamping plate, a boss is arranged on the outer wall of the positioning column, the boss is fixedly connected with the supporting block, and the positioning column is inserted into the first through hole on the supporting block.

5. The battery cell pole welding tool according to claim 2, wherein the clamping surface of the clamping plate of the lower clamping assembly is further provided with a first positioning pin and a second positioning pin for positioning the battery cell to be welded.

6. The welding fixture for the battery core pole according to claim 1, wherein a rotating hole is formed in each of the first support frame and the second support frame, a bearing is arranged in each rotating hole, the bearing is connected with a rotating shaft, and one end of each rotating shaft is connected with a fixing seat; two ends of the turnover frame are fixedly connected with the fixing seats on the first support frame and the second support frame respectively;

the other end of the rotating shaft on the first support frame or the second support frame is connected with a hand wheel; the base is provided with a movable wheel.

7. The electrical core pole welding fixture of claim 1, wherein a protection mechanism is arranged on two opposite sides of the turnover frame, and the protection mechanism comprises a protection plate, a mounting seat, a push rod, a push plate, a first return spring, a sliding block, a bolt and a bolt seat;

the mounting seat is fixed on the turnover frame, a first sliding hole and a second sliding hole which are parallel in the hole depth direction are formed in the mounting seat, the push rod penetrates through the first sliding hole in a sliding mode, one end of the push rod extends towards the accommodating space and is connected with the protection plate, the other end of the push rod is connected with the push plate, the first reset spring is sleeved on the push rod and is located between the mounting seat and the push plate, the first end of the slide block is inserted into the second sliding hole in a sliding mode, and the second end of the slide block is connected with the push plate; the push plate is pushed to drive the push rod and the sliding block to slide along the first sliding hole and the second sliding hole respectively, so that the protection plate is pushed to move towards the accommodating space until the protection plate is pressed on the battery cell to be welded in the accommodating space;

the utility model discloses a welding device for the battery cell, including installation space, bolt seat, slider, first reset spring, second end, guard plate, bolt seat, limit groove, be equipped with on the bolt seat, be equipped with the bolt hole on the bolt seat, be equipped with the spacing groove on the slider, the first end of bolt slides and passes the bolt hole, the second end of bolt is in the guard plate compresses tightly when waiting to weld the battery cell in the accommodation space to insert and locate in the spacing groove, in order to restrict the slip of slider, and when the guard plate compresses tightly wait to weld on the battery cell in the accommodation space first reset spring is in by compressed state.

8. The electrical core terminal welding fixture according to claim 7, wherein the protection mechanism further comprises an adjusting bolt, and the second end of the sliding block is connected with the push plate through the adjusting bolt;

the second end of the sliding block is provided with a threaded hole, a third sliding hole is formed in the pushing plate, a nut is arranged at one end of the adjusting bolt, the diameter of the nut is larger than that of the third sliding hole, the other end of the adjusting bolt penetrates through the third sliding hole in a sliding mode and is in threaded connection with the threaded hole of the sliding block, a nut is connected to the adjusting bolt in a threaded mode, the diameter of the nut is larger than that of the third sliding hole, and the nut is located between the sliding block and the pushing plate.

9. The electrical terminal post welding fixture of claim 7, wherein the pin is provided with a raised stop block adjacent to the second end of the pin, and the protection mechanism further comprises a second return spring sleeved on the pin and positioned between the stop block and the pin seat.

10. The welding fixture for the battery cell pole according to claim 1, wherein a first connecting piece is arranged between the first supporting frame and the turnover frame, one end of the first connecting piece is in threaded connection with the first supporting frame, and the other end of the first connecting piece is in threaded connection with the turnover frame; the second connecting piece is arranged between the second supporting frame and the overturning frame, one end of the second connecting piece is in threaded connection with the second supporting frame, and the other end of the second connecting piece is in threaded connection with the overturning frame.