CN215316619U - Automatic positioning welding device for battery pack - Google Patents

Abstract

The utility model discloses an automatic positioning welding device for a battery pack, which comprises a welding gun mechanism, a limiting seat, a positioning seat positioned below the welding gun mechanism, an upper limiting plate and two lower limiting plates, wherein the upper limiting plate and the two lower limiting plates are respectively provided with a welding hole; the limiting seat is provided with a group of through grooves for placing at least two pole groups; the bottom end of the upper limiting plate is provided with a first groove for placing a positive current collecting piece, the upper end of the lower limiting plate is provided with a second groove for placing a negative current collecting piece or a side plate, and the first groove and the second groove are both provided with magnets; a group of welding positioning plates, a first lifting cylinder and a telescopic driving piece are arranged on two sides of the positioning seat, and a top rod of the first lifting cylinder is connected with a lower pressing block; a pressing plate for pressing the pole group is arranged in the through groove, through holes are formed in two sides of the limiting seat, and a driving end of the telescopic driving piece is connected with a push rod which penetrates through the through holes and pushes the pressing plate to move; the utility model has high welding efficiency, high positioning accuracy and good compression effect.

Description

Automatic positioning welding device for battery pack

Technical Field

The utility model relates to the technical field of batteries, in particular to an automatic positioning and welding device for a battery pack.

Background

The battery pack is a main source of new energy automobile power, wherein the square battery pack is widely used; a welding process is usually adopted in the production process of the square battery pack, wherein a positive current collector, a negative current collector and a side plate are required to be positioned and welded at two extreme ends of a stacked pole group before the pole group formed by stacking a plurality of pole pieces is packaged in a battery shell; at present, most of the prior art adopts the technical scheme that the two sides of a single pole group placed in a lamination tool are clamped and positioned manually, then positive and negative current collecting plates are positioned and fixed and welded at the two pole ends of the laminated single pole group manually, and finally a side plate is positioned, fixed and welded at the negative pole end of the single pole group manually to complete welding; however, the manual positioning of the electrode group, the current collecting piece and the side plate is often used to position and weld only a single electrode group at a time by virtue of the experience of the staff, so that the problems of low positioning accuracy, low welding efficiency and unrealistic pressing exist, and the phenomena of poor welding, short circuit, fire and the like of the subsequent current collecting piece and the side plate are easily caused.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide an automatic positioning welding device for a battery pack, which is used for automatically and accurately positioning and welding a plurality of groups of current collecting plates, pole groups and side plates together and has the advantages of high welding efficiency, high positioning accuracy and good pressing effect.

In order to achieve the purpose, the utility model provides the following technical scheme:

an automatic positioning welding device for a battery pack comprises a welding gun mechanism, a limiting seat, a positioning seat positioned below the welding gun mechanism, an upper limiting plate and two lower limiting plates, wherein the upper limiting plate and the lower limiting plates are provided with welding holes; the limiting seat is provided with a group of through grooves for placing at least two pole groups; the bottom end of the upper limiting plate is provided with a first groove for placing a positive current collecting piece, the upper end of the lower limiting plate is provided with a second groove for placing a negative current collecting piece or a side plate, and the first groove and the second groove are both provided with magnets; a group of welding positioning plates are arranged on two sides of the positioning seat; a first lifting cylinder and a telescopic driving piece are arranged on two sides of the positioning seat, and a top rod of the first lifting cylinder is connected with a lower pressing block; the through groove is internally provided with a pressing plate used for pressing the pole group, through holes are formed in two sides of the limiting seat, and the driving end of the telescopic driving piece is connected with a push rod which penetrates through the through holes and pushes the pressing plate to move.

Further setting: the fixing piece is detachably pressed on the four sides of the pole group, a plurality of supporting limit blocks used for supporting the fixing piece are detachably connected to the lower end of the through groove, and the fixing piece is provided with limit grooves for the supporting limit blocks to be spliced.

Further setting: the upper limiting plate comprises a positioning part and a plurality of mounting block parts, the welding holes are formed in the positioning part and the mounting block parts, the welding holes of the positioning part are communicated with the welding holes of the mounting block parts, the positioning part is provided with a plurality of sliding grooves for sliding one end of the mounting block parts, a group of limiting holes are formed in two sides of the mounting block parts and two sides of the positioning part, and limiting rods for preventing the mounting block parts from shaking are detachably connected in the limiting holes; the upper limiting plate and the lower limiting plate are identical in structure, the first groove is formed in the other end of the mounting block portion of the upper limiting plate, and the second groove is formed in the other end of the mounting block portion of the lower limiting plate.

Further setting: the groove depth of spout is greater than the thickness of installation piece portion, a set of regulation hole has been seted up to installation piece portion, the regulation hole is located between the spacing hole, can dismantle in the regulation hole and be connected with and be used for adjusting installation piece portion pressure's spring top pearl, the bulb butt of spring top pearl in the one end of installation piece portion.

Further setting: the turnover mechanism is used for turning the upper limiting plate, the limiting seat and the lower limiting plate for 180 degrees together; the turnover mechanism comprises a rotary cylinder and a clamping plate arranged in a U shape, the rotary end of the rotary cylinder is connected with the closed end of the clamping plate, and the rotary cylinder is connected with a translation cylinder which drives the rotary cylinder to reciprocate towards the positioning seat; one open end of the splint is a movable end, a second lifting cylinder for driving the open end of the splint to lift is connected to the inner side of the closed end of the splint, and the positioning seat is provided with a yielding groove for the other open end of the splint to pass through.

Further setting: the two open ends of the clamping plate are sleeved with anti-skidding sleeves, and the other open end of the clamping plate is connected with a positioning block for preventing the limiting seat from deviating close to one side of the turnover mechanism.

In summary, the utility model realizes the effect of detachably limiting the plurality of positive and negative current collecting pieces on the upper and lower limiting plates respectively through the first groove, the second groove and the magnet; the upper end and the lower end of the limiting seat are respectively connected with the upper limiting plate and the lower limiting plate through the limiting seat and the through groove by the positioning pins, so that the effect of preliminarily positioning the two pole ends of the pole group and the positive current collecting piece and the negative current collecting piece is realized; the positioning seat and the welding positioning plate play a role in ensuring high precision and high efficiency of subsequent welding; the telescopic driving piece, the push rod, the through hole and the pressing plate are used for realizing the effects of compressing a plurality of pole groups and secondarily positioning two poles of the pole groups and the positive and negative current collecting pieces, so that the influence on the positioning accuracy of the two poles of the pole groups and the current collecting pieces due to the inclination of the pole groups or the large gap between the pole groups is avoided, and the effects of further ensuring the subsequent welding accuracy and the welding efficiency are achieved; the effects of compressing the upper and lower limiting plates and ensuring the subsequent welding precision and welding efficiency are realized through the first lifting cylinder and the lower pressing block; the function of accurately welding the plurality of current collecting pieces and the side plates at the two pole ends of the plurality of pole groups respectively is realized through the welding gun mechanism and the welding holes; the whole welding efficiency is high, the positioning accuracy is high, and the pressing effect is good.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a partial exploded view of an embodiment of the present invention;

FIG. 3 is a partial cross-sectional view of an upper retention plate in an embodiment of the utility model:

FIG. 4 is a schematic structural diagram of a lower limiting plate in an embodiment of the present invention;

FIG. 5 is a schematic diagram of a portion of an embodiment of the present invention;

fig. 6 is a schematic structural diagram of the positioning seat and the turnover mechanism in the embodiment of the utility model.

In the figure: 1. a welding gun mechanism; 2. a limiting seat; 3. positioning seats; 4. an upper limiting plate; 5. a lower limiting plate; 6. a through groove; 7. a first groove; 8. a second groove; 9. a magnet; 10. welding a positioning plate; 11. a first lifting cylinder; 12. a telescopic driving member; 13. pressing the block; 14. pressing a plate; 15. a through hole; 16. a push rod; 17. a fixing member; 18. a support limit block; 19. a limiting groove; 20. a positioning part; 21. a mounting block portion; 22. a chute; 23. a limiting hole; 24. a limiting rod; 25. an adjustment hole; 26. a spring top bead; 27. welding the hole; 28. a rotating cylinder; 29. a splint; 30. a translation cylinder; 31. a second lifting cylinder; 32. a yielding groove; 33. an anti-slip sleeve; 34. and (5) positioning the blocks.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments. It should be noted that the terms "upper" and "lower" used in the following description refer to directions in fig. 1, and the terms "bottom" and "top" refer to directions toward the geometric center of a particular component.

The most key concept of the utility model is as follows: the effect of detachably limiting the plurality of positive and negative current collecting pieces on the upper limiting plate 4 and the lower limiting plate 5 is realized through the first groove 7, the second groove 8 and the magnet 9; after the upper end and the lower end of the limiting seat 2 are respectively connected with the upper limiting plate 4 and the lower limiting plate 5 through the positioning pins, a plurality of pole groups are placed in the through grooves 6, and the effect of preliminarily positioning the two poles of the pole groups and the positive and negative current collecting plates is realized; the limiting seat 2, the upper limiting plate 4 and the lower limiting plate 5 are limited below the welding gun mechanism 1 through the positioning seat 3 and the welding positioning plate 10, so that the effects of ensuring high precision and high efficiency of subsequent welding are achieved; the plurality of pole groups in the through groove 6 are compressed through the telescopic driving piece 12, the push rod 16, the through hole 15 and the pressing plate 14, so that the secondary positioning effect of two pole ends of the pole groups and the positive and negative current collecting plates is realized, and the subsequent high welding precision and welding efficiency are further ensured; the upper limiting plate 5 and the lower limiting plate 5 are compressed and the subsequent welding precision and the subsequent welding efficiency are ensured through the first lifting cylinder 11 and the lower pressing block 13; the welding gun mechanism 1 and the welding holes 27 are used for accurately welding a plurality of current collecting plates and side plates at two polar ends of a plurality of polar groups at the same time;

the utility model automatically and accurately positions, compresses and welds the plurality of current collecting pieces, the pole group and the side plate together, and has the advantages of high welding efficiency, high positioning accuracy and good compressing effect.

Referring to fig. 1 to 6, an automatic positioning and welding device for a battery pack includes a welding gun mechanism 1, a limiting seat 2, a positioning seat 3 located below the welding gun mechanism 1, an upper limiting plate 4 and two lower limiting plates 5 both provided with welding holes 27, wherein the upper and lower ends of the limiting seat 2 are respectively connected with the upper limiting plate 4 and the lower limiting plates 5 through positioning pins; the limiting seat 2 is provided with a group of through grooves 6 for placing at least two pole groups; the bottom end of the upper limiting plate 4 is provided with a first groove 7 for placing a positive current collecting piece, the upper end of the lower limiting plate 5 is provided with a second groove 8 for placing a negative current collecting piece or a side plate, and the first groove 7 and the second groove 8 are both provided with magnets 9; a group of welding positioning plates 10 are arranged on two sides of the positioning seat 3; a first lifting cylinder 11 and a telescopic driving piece 12 are arranged on two sides of the positioning seat 3, and a top rod of the first lifting cylinder 11 is connected with a lower pressing block 13; a pressing plate 14 used for pressing the pole group is arranged in the through groove 6, through holes 15 are formed in two sides of the limiting seat 2, and a driving end of the telescopic driving piece 12 is connected with a push rod 16 which penetrates through the through holes 15 and pushes the pressing plate 14 to move.

As can be seen from the above description, when the current collecting pieces and the side plates need to be welded to the two pole ends of the stacked pole groups, firstly, the negative current collecting pieces are adsorbed into the second grooves 8 through the second grooves 8 and the magnets 9 arranged in the second grooves 8, so that the negative current collecting pieces can be detachably limited on the lower limiting plate 5; the bottom end of the limiting seat 2 is connected with a lower limiting plate 5 through a positioning pin, and a plurality of stacked pole groups are placed in a through groove 6 formed in the limiting seat 2, so that the effect of preliminary positioning of the negative end of the pole group and a negative current collecting plate is realized; secondly, the positive current collecting sheet is absorbed into the first groove 7 through the first groove 7 and the magnet 9 arranged in the first groove 7, so that the positive current collecting sheet can be detachably fixed on the upper limiting plate 4; the upper limiting plate 4 and the limiting seat 2 are connected together through the positioning pin, so that the effect of preliminarily positioning the positive end of the pole group and the positive current collecting piece is realized; then, the limiting seat 2, the upper limiting plate 4 and the lower limiting plate 5 which are installed together are placed between the welding positioning plates 10 through the positioning seat 3 and the welding positioning plates 10, so that the influence on the subsequent welding precision and the welding efficiency caused by the deviation in the process of automatically or manually placing the installed limiting seat 2, the upper limiting plate 4 and the lower limiting plate 5 on the positioning seat 3 is prevented, and the effects of ensuring the subsequent welding high precision and the welding high efficiency are achieved;

then, the telescopic driving part 12 is started through the telescopic driving part 12, the push rod 16, the through hole 15 and the pressing plate 14, the push rod 16 is driven to penetrate through the through hole 15, the push rod 16 pushes the pressing plate 14 to tightly press a plurality of pole groups located in the through groove 6, the secondary positioning effect of the two poles of the pole groups and the positive and negative current collecting plates is realized, the positioning accuracy of the two poles of the pole groups and the current collecting plates is prevented from being influenced due to the inclination of the pole groups or the large gap between the pole groups, the subsequent welding efficiency and the welding accuracy are further influenced, and the subsequent welding accuracy and the welding efficiency are further ensured;

then, the first lifting cylinder 11 is started through the first lifting cylinder 11 and the lower pressing block 13, the first lifting cylinder 11 drives the lower pressing block 13 to descend towards the upper limiting plate 4 until the lower pressing block 13 presses the upper limiting plate 4 to the upper end of the limiting seat 2, the upper limiting plate 4 is pressed, and the effects of high subsequent welding precision and welding efficiency are guaranteed; the welding gun mechanism 1 realizes the function of accurately welding a plurality of positive current collecting sheets at the positive ends of a plurality of electrode groups respectively through welding holes 27 formed in the upper limiting plate 4; then, the limiting seat 2, the upper limiting plate 4 and the lower limiting plate 5 are turned over by 180 degrees, the pressing and welding steps of the lower pressing block 13 are repeated, and the plurality of negative current collecting plates are accurately welded at the negative ends of the plurality of pole groups; and finally, taking down the lower limiting plate 5 welded with the negative current collecting piece, replacing the lower limiting plate 5 provided with the side plate to the limiting seat 2, and repeating the pressing and welding steps of the lower pressing block 13 again, thereby realizing the effect of automatically and accurately welding a plurality of groups of current collecting pieces, pole groups and side plates together.

Further: the device is characterized by further comprising fixing pieces 17 used for fixing four sides of the stacked single pole group, wherein the fixing pieces 17 can be detachably pressed on the four sides of the pole group, the lower end of the through groove 6 is detachably connected with a plurality of supporting limit blocks 18 used for supporting the fixing pieces 17, and the fixing pieces 17 are provided with limit grooves 19 for the supporting limit blocks 18 to be spliced.

As can be seen from the above description, before the pole groups are placed in the through grooves 6, the four sides of the stacked single pole group are compressed by the fixing members 17, so that the situation that the stacked pole groups are scattered due to shaking in the subsequent carrying process to influence the subsequent welding positioning accuracy is avoided, and the effects of performing primary positioning compression on the pole groups and ensuring the subsequent welding positioning accuracy are achieved; when the utmost point group after will compressing tightly through the preliminary location of mounting 17 is placed logical inslot 6, through supporting stopper 18 and seting up in the spacing groove 19 of mounting 17, will support stopper 18 and peg graft at spacing inslot 19, play the effect of supporting utmost point group and mounting 17, simultaneously, carry out preliminary location in leading to inslot 6 to utmost point group, further guarantee the effect that utmost point group welding position accuracy is high.

Further: the upper limiting plate 4 comprises a positioning part 20 and a plurality of mounting block parts 21, welding holes 27 are formed in the positioning part 20 and the mounting block parts 21, the welding holes 27 of the positioning part 20 are communicated with the welding holes 27 of the mounting block parts 21, the positioning part 20 is provided with a plurality of sliding grooves 22 for sliding one ends of the mounting block parts 21, a group of limiting holes 23 are formed in both sides of the mounting block parts 21 and the positioning part 20, and limiting rods 24 for preventing the mounting block parts 21 from shaking are detachably connected in the limiting holes 23; the upper limiting plate 4 and the lower limiting plate 5 have the same structure, the first groove 7 is arranged at the other end of the mounting block part 21 of the upper limiting plate 4, and the second groove 8 is arranged at the other end of the mounting block part 21 of the lower limiting plate 5.

As can be seen from the above description, the mounting block portion 21 is primarily detachably positioned and connected to the positioning portion 20 by arranging one end of the mounting block portion 21 to be slidably connected to the sliding slot 22 formed in the positioning portion 20; through the limiting holes 23 and the limiting rods 24, the limiting rods 24 sequentially penetrate through and are detachably connected with the limiting holes 23 formed in the two sides of the positioning portion 20 and the mounting block portion 21, the mounting block portion 21 is prevented from shaking to influence the positioning accuracy of the current collecting piece or the side plate in the process of moving the upper limiting plate 4 and the lower limiting plate 5, and the effects of further detachably positioning and connecting the mounting block portion 21 to the positioning portion 20 and further ensuring the subsequent welding positioning accuracy are achieved; when the upper limiting plate 4 or the lower limiting plate 5 needs to be disassembled after welding is completed, firstly, the limiting rod 24 is disassembled and separated from the limiting hole 23, then the positioning part 20 slides out from one end of the mounting block part 21 through the sliding groove 22, finally, the current collecting piece connected with one end of the pole group at the other end of the mounting block part 21 is pressed through the communicated welding hole 27, the mounting block part 21 is separated from the current collecting piece, and the effect of disassembling the upper limiting plate 4 or the lower limiting plate 5 is achieved.

Further: the groove depth of spout 22 is greater than the thickness of installation piece portion 21, and a set of regulation hole 25 has been seted up to installation piece portion 21, and regulation hole 25 is located between the spacing hole 23, can dismantle in the regulation hole 25 to be connected with the spring top pearl 26 that is used for adjusting installation piece portion 21 pressure, and the bulb butt of spring top pearl 26 is in the one end of installation piece portion 21.

From the above description, because of the different thickness between the two poles of the earth end of different utmost point group, when briquetting 13 compressed tightly upper limit board 4 or lower limit board 5 under first lift cylinder 11 drives, through dismantling the spring top pearl 26 of connecting in regulation hole 25, spring top pearl 26's bulb butt in the one end of installation piece portion 21, because the groove depth of spout 22 is greater than the thickness of installation piece portion 21, be used for adjusting the pressure of installation piece portion 21 to the two extreme utmost points of different thickness group, and then realize improving the dynamics that compresses tightly of installation piece portion 21 to utmost point group, further guarantee the effect of follow-up welding precision and welding efficiency.

Further: the device also comprises a turnover mechanism 27 which is used for turning the upper limiting plate 4, the limiting seat 2 and the lower limiting plate 5 for 180 degrees together; the turnover mechanism 27 comprises a rotary cylinder 28 and a clamping plate 29 arranged in a U shape, the rotary end of the rotary cylinder 28 is connected with the closed end of the clamping plate 29, and the rotary cylinder 28 is connected with a translation cylinder 30 for driving the rotary cylinder to reciprocate towards the direction of the positioning seat 3; one open end of the clamping plate 29 is a movable end, a second lifting cylinder 31 for driving one open end of the clamping plate 29 to lift is connected to the inner side of the closed end of the clamping plate 29, and the positioning seat 3 is provided with a yielding groove 32 for the other open end of the clamping plate 29 to pass through.

As can be seen from the above description, when the upper limiting plate 4, the limiting seat 2 and the lower limiting plate 5 which are placed on the positioning seat 3 need to be clamped, the second lifting cylinder 31 is started, and the ejector rod of the second lifting cylinder 31 contracts to drive one open end of the clamping plate 29 to abut against the upper end face of the upper limiting plate 4, so that the upper limiting plate 4, the limiting seat 2 and the lower limiting plate 5 are automatically clamped; when the upper limiting plate 4, the limiting seat 2 and the lower limiting plate 5 need to be turned over after the welding of the positive current collecting sheet is completed, the translation cylinder 30 is started, an ejector rod of the translation cylinder 30 contracts to drive the rotary cylinder 28 and the clamping plate 29 to move to a preset value in the direction away from the positioning seat 3, then the rotary cylinder 28 is started to drive the clamping plate 29 to turn over 180 degrees, so that the upper limiting plate 4, the limiting seat 2 and the lower limiting plate 5 clamped by the clamping plate 29 are driven to turn over 180 degrees, and the lower limiting plate 5 is located below the lower pressing block 13; and finally, the first lifting cylinder 11 drives the lower pressing block 13 to press the lower limiting plate 5 and weld the lower limiting plate through the welding gun mechanism 1.

Further: the two open ends of the clamping plate 29 are sleeved with anti-skid sleeves 33, and the other open end of the clamping plate 29 is connected with a positioning block 34 for preventing the limiting seat 2 from deviating close to one side of the turnover mechanism 27.

As can be seen from the above description, the anti-slip sleeves 33 sleeved at the two open ends of the clamping plate 29 increase the friction force between the clamping plate 29 and the upper limiting plate 4 and the lower limiting plate 5, so as to prevent the upper limiting plate 4, the limiting seat 2 and the lower limiting plate 5 from falling off during the turnover process of the turnover mechanism 27, and thus, the clamping force of the clamping plate 29 on the upper limiting plate 4 and the lower limiting plate 5 is enhanced; the positioning block 34 connected to the other opening end of the clamping plate 29 is used for preventing the upper limiting plate 4, the limiting seat 2 and the lower limiting plate 5 from deviating to influence the subsequent welding positioning accuracy and welding efficiency.

Referring to fig. 1 to 6, an embodiment of the present invention is:

the utility model provides an automatic positioning welding device is used to battery package, as shown in figure 1, includes welder mechanism 1, spacing seat 2, positioning seat 3, all sets up last limiting plate 4 and two lower limiting plates 5 of welding hole 27, and positioning seat 3 is located welder mechanism 1 below, and the upper and lower both ends of spacing seat 2 pass through the locating pin and are connected with last limiting plate 4, lower limiting plate 5 respectively.

As shown in fig. 1 and 2, the device further comprises a fixing member 17 for fixing four sides of the stacked single pole group, wherein the fixing member 17 is detachably pressed on the four sides of the pole group; the limiting seat 2 is provided with a group of through grooves 6 for placing at least two electrode groups, the lower end of each through groove 6 is detachably connected with a plurality of supporting limiting blocks 18 for supporting the fixing piece 17, and the fixing piece 17 is provided with limiting grooves 19 for the supporting limiting blocks 18 to be inserted; a pressing plate 14 for pressing the pole group is arranged in the through groove 6, and through holes 15 are formed in two sides of the limiting seat 2.

As shown in fig. 2 and 3, the bottom end of the upper limiting plate 4 is provided with a first groove 7 for placing a positive current collecting piece, the upper end of the lower limiting plate 5 is provided with a second groove 8 for placing a negative current collecting piece or a side plate, and the first groove 7 and the second groove 8 are both provided with magnets 9; the upper limiting plate 4 comprises a positioning part 20 and a plurality of mounting block parts 21, welding holes 27 are formed in the positioning part 20 and the mounting block parts 21, the welding holes 27 of the positioning part 20 are communicated with the welding holes 27 of the mounting block parts 21, and the positioning part 20 is provided with a plurality of sliding grooves 22 for one ends of the mounting block parts 21 to slide; the groove depth of the sliding groove 22 is greater than the thickness of the mounting block part 21, the mounting block part 21 is provided with a group of adjusting holes 25, the adjusting holes 25 are positioned between the limiting holes 23, spring ejecting balls 26 used for adjusting the pressure of the mounting block part 21 are detachably connected in the adjusting holes 25, and the ball heads of the spring ejecting balls 26 abut against one end of the mounting block part 21;

as shown in fig. 3 and 4, a set of limiting holes 23 are formed on both sides of the mounting block portion 21 and the positioning portion 20, and a limiting rod 24 for preventing the mounting block portion 21 from shaking is detachably connected in the limiting holes 23; the upper limiting plate 4 and the lower limiting plate 5 have the same structure, the first groove 7 is arranged at the other end of the mounting block part 21 of the upper limiting plate 4, and the second groove 8 is arranged at the other end of the mounting block part 21 of the lower limiting plate 5.

As shown in fig. 1 and 2, a set of welding positioning plates 10 is disposed on two sides of the positioning seat 3; a first lifting cylinder 11 and a telescopic driving piece 12 are arranged on two sides of the positioning seat 3, and a top rod of the first lifting cylinder 11 is connected with a lower pressing block 13; the driving end of the telescopic driving member 12 is connected with a push rod 16 which passes through the through hole 15 and pushes the pressing plate 14 to move.

As shown in fig. 5 and 6, the device further comprises a turnover mechanism 27 for turning the upper limiting plate 4, the limiting seat 2 and the lower limiting plate 5 together for 180 degrees; the turnover mechanism 27 comprises a rotary cylinder 28 and a clamping plate 29 arranged in a U shape, the rotary end of the rotary cylinder 28 is connected with the closed end of the clamping plate 29, and the rotary cylinder 28 is connected with a translation cylinder 30 for driving the rotary cylinder to reciprocate towards the direction of the positioning seat 3; one open end of the clamping plate 29 is a movable end, the inner side of the closed end of the clamping plate 29 is connected with a second lifting cylinder 31 for driving one open end of the clamping plate 29 to lift, and the positioning seat 3 is provided with a yielding groove 32 for the other open end of the clamping plate 29 to pass through; the two open ends of the clamping plate 29 are sleeved with anti-skid sleeves 33, and the other open end of the clamping plate 29 is connected with a positioning block 34 for preventing the limiting seat 2 from deviating close to one side of the turnover mechanism 27.

In conclusion, compared with the prior art, the utility model has the advantages of high welding efficiency, high positioning accuracy and good compression effect, and realizes the effect of detachably limiting a plurality of positive and negative current collecting plates on the upper and lower limiting plates 5 through the first groove 7, the second groove 8 and the magnet 9; the upper end and the lower end of the limiting seat 2 are respectively connected with the upper limiting plate 4 and the lower limiting plate 5 through the limiting seat 2 and the through groove 6 by positioning pins, so that the effect of preliminarily positioning the two pole ends of the pole group and the positive and negative current collecting plates is realized; the positioning seat 3 and the welding positioning plate 10 play a role in ensuring high precision and high efficiency of subsequent welding; the telescopic driving piece 12, the push rod 16, the through hole 15 and the pressing plate 14 are used for realizing the effects of pressing a plurality of pole groups and secondarily positioning the two poles of the pole groups and the positive and negative current collecting pieces, so that the positioning accuracy of the two poles of the pole groups and the current collecting pieces is prevented from being influenced due to the inclination of the pole groups or the existence of large gaps among the pole groups, and the effects of further ensuring the subsequent welding accuracy and the welding efficiency are achieved; the upper limiting plate 5 and the lower limiting plate 5 are compressed and the subsequent welding precision and the subsequent welding efficiency are ensured through the first lifting cylinder 11 and the lower pressing block 13; the welding gun mechanism 1 and the welding holes 27 are used for accurately welding a plurality of current collecting plates and side plates at two pole ends of a plurality of pole groups respectively.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims (6)

1. The utility model provides a battery is automatic positioning welding device for package which characterized in that: the welding gun mechanism comprises a welding gun mechanism, a limiting seat, a positioning seat positioned below the welding gun mechanism, an upper limiting plate and two lower limiting plates, wherein the upper limiting plate and the lower limiting plate are both provided with welding holes; the limiting seat is provided with a group of through grooves for placing at least two pole groups; the bottom end of the upper limiting plate is provided with a first groove for placing a positive current collecting piece, the upper end of the lower limiting plate is provided with a second groove for placing a negative current collecting piece or a side plate, and the first groove and the second groove are both provided with magnets; a group of welding positioning plates are arranged on two sides of the positioning seat; a first lifting cylinder and a telescopic driving piece are arranged on two sides of the positioning seat, and a top rod of the first lifting cylinder is connected with a lower pressing block; the through groove is internally provided with a pressing plate used for pressing the pole group, through holes are formed in two sides of the limiting seat, and the driving end of the telescopic driving piece is connected with a push rod which penetrates through the through holes and pushes the pressing plate to move.

2. The automatic tack welding apparatus for a battery pack according to claim 1, wherein: the fixing piece is detachably pressed on the four sides of the pole group, a plurality of supporting limit blocks used for supporting the fixing piece are detachably connected to the lower end of the through groove, and the fixing piece is provided with limit grooves for the supporting limit blocks to be spliced.

3. The automatic tack welding apparatus for a battery pack according to claim 1, wherein: the upper limiting plate comprises a positioning part and a plurality of mounting block parts, the welding holes are formed in the positioning part and the mounting block parts, the welding holes of the positioning part are communicated with the welding holes of the mounting block parts, the positioning part is provided with a plurality of sliding grooves for sliding one end of the mounting block parts, a group of limiting holes are formed in two sides of the mounting block parts and two sides of the positioning part, and limiting rods for preventing the mounting block parts from shaking are detachably connected in the limiting holes; the upper limiting plate and the lower limiting plate are identical in structure, the first groove is formed in the other end of the mounting block portion of the upper limiting plate, and the second groove is formed in the other end of the mounting block portion of the lower limiting plate.

4. The automatic tack welding apparatus for a battery pack according to claim 3, wherein: the groove depth of spout is greater than the thickness of installation piece portion, a set of regulation hole has been seted up to installation piece portion, the regulation hole is located between the spacing hole, can dismantle in the regulation hole and be connected with and be used for adjusting installation piece portion pressure's spring top pearl, the bulb butt of spring top pearl in the one end of installation piece portion.

5. The automatic tack welding apparatus for a battery pack according to claim 1, wherein: the turnover mechanism is used for turning the upper limiting plate, the limiting seat and the lower limiting plate for 180 degrees together; the turnover mechanism comprises a rotary cylinder and a clamping plate arranged in a U shape, the rotary end of the rotary cylinder is connected with the closed end of the clamping plate, and the rotary cylinder is connected with a translation cylinder which drives the rotary cylinder to reciprocate towards the positioning seat; one open end of the splint is a movable end, a second lifting cylinder for driving the open end of the splint to lift is connected to the inner side of the closed end of the splint, and the positioning seat is provided with a yielding groove for the other open end of the splint to pass through.

6. The automatic positioning welding device for the battery pack according to claim 5, wherein: the two open ends of the clamping plate are sleeved with anti-skidding sleeves, and the other open end of the clamping plate is connected with a positioning block for preventing the limiting seat from deviating close to one side of the turnover mechanism.

Images