A turret-type busbar welding system

Abstract

The present application relates to battery processing technical field, provide a kind of turret type current collecting plate welding system, including current collecting plate feeding mechanism, battery feeding mechanism, current collecting plate welding and pressing mechanism and welding mechanism;Current collecting plate welding and pressing mechanism includes turret and multiple sets of welding and pressing assembly, the welding and pressing assembly includes welding pressure head, multiple sets of welding and pressing assembly are respectively arranged along the circumference of turret;Current collecting plate feeding mechanism, battery feeding mechanism and welding mechanism are arranged around turret;Current collecting plate feeding mechanism is used to carry out current collecting plate feeding to welding and pressing assembly;Battery feeding mechanism is used to carry out battery feeding to welding and pressing assembly;Welding mechanism is used to carry out laser welding to current collecting plate under the condition that welding and pressing assembly clamps current collecting plate between welding pressure head and the end of battery.This current collecting plate welding system of the present application has low equipment investment cost, small occupied space, and improves the welding efficiency of current collecting plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery processing, and in particular to a turret type current collector plate welding system. BACKGROUND

[0002] The cell is the most important component of the battery, and after the cell is sequentially processed through mechanical / ultrasonic kneading, gluing, shell entering, current collector plate welding and other processes, the battery can be assembled. Therefore, the performance of the cell directly affects the performance of the battery, and the cell preparation process before battery assembly is very important.

[0003] In actual application, it is found that when welding the current collector plate on the end of the cell, the existing current collector plate welding system is arranged with multiple current collector plate welding and pressing mechanisms along the conveying direction of the cell step feeding line, and a welding mechanism is arranged on one side of each current collector plate welding and pressing mechanism. This arrangement method has high cost, occupies a large space, has slow production rhythm, and has low welding efficiency of the current collector plate, which is not conducive to improving the efficiency of the entire battery processing production line. SUMMARY

[0004] The present application provides a turret type current collector plate welding system to solve the problems of high cost, large occupied space and low welding efficiency of the existing current collector plate welding system.

[0005] The present application provides a turret type current collector plate welding system, comprising: a current collector plate feeding mechanism, a cell feeding mechanism, a current collector plate welding and pressing mechanism and a welding mechanism;

[0006] The current collector plate welding and pressing mechanism comprises a turret and multiple welding and pressing assemblies, the welding and pressing assembly comprises a welding pressing head, and multiple welding and pressing assemblies are arranged along the circumference of the turret; the current collector plate feeding mechanism, the cell feeding mechanism and the welding mechanism are arranged around the turret;

[0007] The current collector plate feeding mechanism is used for feeding the current collector plate to the welding and pressing assembly; the cell feeding mechanism is used for feeding the cell to the welding and pressing assembly; and the welding mechanism is used for welding the current collector plate when the welding and pressing assembly clamps the current collector plate between the welding pressing head and the end of the cell.

[0008] The turret type current collector plate welding system provided by the present application, the current collector plate welding and pressing mechanism further comprises a cam member; along the height direction of the turret, the cam member is arranged on the upper side of the welding and pressing assembly; and the cam member is arranged along the circumference of the turret.

[0009] The welding pressing assembly comprises an adapter frame, a supporting piece, a welding pressing head and a first linkage; the adapter frame is connected with the turret, the supporting piece is connected with the adapter frame, the cell loading mechanism is used to deliver the cell carrier containing cells to the supporting piece, the welding pressing head is arranged on the upper side of the supporting piece, the first linkage is movably arranged on the adapter frame along the height direction, the upper end of the first linkage is slidably connected with the cam member, and the lower end of the first linkage is connected with the welding pressing head.

[0010] Wherein, in the case of rotating the turret, the cam member is used to drive the first linkage to drive the welding pressing head to perform the lifting movement, so as to control the pressing state of the welding pressing head to the cells on the cell carrier.

[0011] The turret type current collecting disc welding system provided by the application is characterized in that the cam member is provided with a guide groove, and the upper end of the first linkage is movably arranged in the extension direction of the guide groove.

[0012] The guide groove comprises a first guide segment, a second guide segment and a third guide segment, and the first guide segment, the second guide segment and the third guide segment are sequentially connected; the first guide segment, the second guide segment and the third guide segment are respectively arranged opposite to the current collecting disc loading mechanism, the cell loading mechanism and the welding mechanism.

[0013] The first guide segment is used to guide the welding pressing head to move downward, so as to load the current collecting disc on the lower side of the welding pressing head; the second guide segment is used to guide the welding pressing head to move upward, so as to deliver the cell carrier to the supporting piece by the cell loading mechanism; and the third guide segment is used to guide the welding pressing head to move downward, so as to clamp and fix the current collecting disc.

[0014] The turret type current collecting disc welding system provided by the application is characterized in that the current collecting disc welding pressing mechanism further comprises a first jacking control piece; the first jacking control piece is arranged along the circumferential direction of the turret; along the height direction of the turret, the first jacking control piece is arranged on the lower side of the welding pressing assembly.

[0015] The welding pressing assembly further comprises a second linkage, the supporting piece is provided with a through hole, the second linkage is movably arranged on the adapter frame along the height direction, the upper end of the second linkage extends to the through hole, and the lower end of the second linkage is slidably connected with the first jacking control piece.

[0016] In the case that the turret drives the welding pressing assembly to rotate to the position corresponding to the welding mechanism, the first jacking control piece drives the second linkage to move upward, so that the upper end of the second linkage abuts against the bottom end of the cell.

[0017] The turret-type current collector plate welding system further comprises a second jacking control member; the second jacking control member is arranged along the circumference of the turret; and the second jacking control member is arranged on the lower side of the welding and pressing assembly along the height direction of the turret.

[0018] The welding and pressing assembly further comprises a third connecting member and a clamping mechanism; the third connecting member is movably arranged on the adapter along the height direction; and the clamping mechanism is arranged on the adapter; the upper end of the third connecting member is power-coupled with the clamping mechanism; and the lower end of the third connecting member is slidingly matched with the second jacking control member.

[0019] When the turret drives the welding and pressing assembly to rotate to the position corresponding to the welding mechanism, the second jacking control member guides the third connecting member to move downward, and the second jacking control member drives the clamping mechanism to be in a clamping state.

[0020] When the turret drives the welding and pressing assembly to move away from the position corresponding to the welding mechanism, the second jacking control member guides the third connecting member to move upward, and the second jacking control member drives the clamping mechanism to be in an open state.

[0021] The turret-type current collector plate welding system further comprises a clamping mechanism; the clamping mechanism comprises a horizontal guide rail, a first clamping jaw and a second clamping jaw; the horizontal guide rail is arranged on the adapter; the first clamping jaw and the second clamping jaw are movably arranged on the horizontal guide rail; and a clamping space is formed between the first clamping jaw and the second clamping jaw.

[0022] The upper end of the third connecting member is rotatably provided with a first connecting rod and a second connecting rod; the first connecting rod is rotatably connected with the first clamping jaw; and the second connecting rod is rotatably connected with the second clamping jaw.

[0023] The welding pressure head comprises a pressure head body; the pressure head body has an attaching surface for attaching to a current collector plate and a welding surface corresponding to the attaching surface; and a tool hole penetrating the attaching surface is formed on the welding surface;

[0024] The attaching surface of the pressure head body is provided with a negative pressure suction port; the negative pressure suction port is in communication with a negative pressure gas adapter through a first gas channel arranged in the pressure head body;

[0025] The pressure head body is provided with a protective gas outlet; the protective gas outlet is arranged along the extension direction of the tool hole; and the protective gas outlet is in communication with a protective gas adapter through a second gas channel arranged in the pressure head body.

[0026] The application provides a turret-type current collecting plate welding system.

[0027] The first conveying line is connected with the first transfer disc, the first transfer disc and the second transfer disc are arranged on one side of the turret, and the second conveying line is connected with the second transfer disc.

[0028] The first conveying line is used for conveying a current collecting plate carrier supporting a current collecting plate to the first transfer disc, the first transfer disc is used for driving the current collecting plate carrier to move to the welding and pressing assembly, so that the welding pressing head takes the current collecting plate from the current collecting plate carrier, the second transfer disc is used for supporting the current collecting plate carrier on the welding and pressing assembly and moving the current collecting plate carrier to the second conveying line, and the second conveying line is used for conveying the current collecting plate carrier.

[0029] The application provides a turret-type current collecting plate welding system.

[0030] The third conveying line is connected with the third transfer disc, and the third transfer disc is arranged on one side of the turret.

[0031] The third conveying line is used for conveying a battery carrier containing a battery to the third transfer disc, and the third transfer disc is used for driving the battery carrier to move to the welding and pressing assembly.

[0032] The application provides a turret-type current collecting plate welding system.

[0033] The rejection mechanism comprises a visual sorting assembly, a substandard product rejection conveying line and a qualified product conveying line, the visual sorting assembly is arranged on one side of the turret and is used for visually detecting a semi-finished battery after current collecting plate welding, in the case that the semi-finished battery is a substandard product, the visual sorting assembly conveys the substandard product to the substandard product rejection conveying line, and in the case that the semi-finished battery is a qualified product, the visual sorting assembly conveys the qualified product to the qualified product conveying line.

[0034] This invention provides a turret-type manifold welding system. By setting up a manifold feeding mechanism, a cell feeding mechanism, a manifold welding clamping mechanism, and a welding mechanism, it not only integrates multiple sets of circumferentially arranged welding clamping components on the turret, but also allows the manifold feeding mechanism to feed different welding clamping components and the cell feeding mechanism to feed different welding clamping components as the turret rotates. When each welding clamping component moves to the position of the corresponding welding mechanism, the manifold can be clamped between the welding head and the end of the cell by the welding clamping component, and the laser welding of the manifold can be completed by the welding mechanism.

[0035] As can be seen, the present invention realizes the integrated design of multiple sets of welding and clamping components relative to the turret. The equipment investment cost is low and the space occupied is small. As the turret rotates, multiple sets of welding and clamping components can be sequentially fed into the current collector, fed into the battery cell, and welded along the circumference of the turret, thereby improving the welding efficiency of the current collector. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the turret-type manifold welding system provided by the present invention;

[0038] Figure 2 This is a schematic diagram of the arrangement of the welding mechanism provided by the present invention relative to the welding clamping mechanism of the manifold;

[0039] Figure 3 This is a schematic diagram of the welding and clamping assembly provided by the present invention relative to the turret at the feeding station of the collector plate;

[0040] Figure 4 This is a schematic diagram of the welding and clamping assembly provided by the present invention relative to the turret at the feed station and the welding station of the feed plate;

[0041] Figure 5 This is one of the structural schematic diagrams of the welding clamping assembly provided by the present invention;

[0042] Figure 6 This is the second structural schematic diagram of the welding clamping assembly provided by the present invention;

[0043] Figure 7 This is a schematic diagram of the welding pressure head provided by the present invention;

[0044] Figure 8 is a structural schematic view of arrangement of the current collector plate feeding mechanism and the welding mechanism relative to the current collector plate welding and pressing mechanism provided by the application;

[0045] Figure 9 is a structural schematic view of arrangement of the battery cell feeding mechanism relative to the current collector plate welding and pressing mechanism provided by the application.

[0046] Reference signs:

[0047] 1, current collector plate welding and pressing mechanism; 11, turret; 111, main shaft; 112, gear driving disc; 12, cam member; 121, guide groove; 1211, first guide section; 1212, second guide section; 1213, third guide section; 13, welding and pressing assembly; 131, adapter frame; 132, supporting member; 133, welding pressing head; 1331, pressing head body; 1332, tool hole; 1333, negative pressure gas adapter; 1334, protective gas adapter; 134, first linkage member; 135, second linkage member; 136, third linkage member; 137, clamping mechanism; 1371, horizontal guide rail; 1372, first clamping jaw; 1373, second clamping jaw; 138, floating connection assembly; 1381, vertical guide rail; 1382, sliding block; 139, first connecting rod; 1310, second connecting rod; 1311, clamping member; 14, first lifting control member; 15, second lifting control member; 16, limiting member;

[0048] 2, current collector plate feeding mechanism; 21, first conveying line; 22, first adapter disc; 23, second adapter disc; 24, second conveying line;

[0049] 3, battery cell feeding mechanism; 31, third conveying line; 32, third adapter disc;

[0050] 4, welding mechanism; 41, mounting frame; 42, laser welding device;

[0051] 5, rejection mechanism; 51, visual sorting assembly; 52, defective product rejection conveying line; 53, good product conveying line;

[0052] 6, battery cell carrier. DETAILED DESCRIPTION

[0053] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0054] The application will be described in detail below with specific examples and application scenarios. Figures 1-9 The turret-type current collecting disc welding system provided by the embodiment of the application is described in detail below with specific examples and application scenarios.

[0055] As shown in Figure 1 , the embodiment of the application provides a turret-type current collecting disc welding system, which comprises a current collecting disc feeding mechanism 2, a cell feeding mechanism 3, a current collecting disc welding and pressing mechanism 1 and a welding mechanism 4.

[0056] The current collecting disc welding and pressing mechanism 1 comprises a turret and a plurality of sets of welding and pressing assemblies 13, the welding and pressing assembly 13 comprises a welding pressing head 133, and the plurality of sets of welding and pressing assemblies 13 are arranged along the circumference of the turret 11 respectively; the current collecting disc feeding mechanism 2, the cell feeding mechanism 3 and the welding mechanism 4 are arranged around the turret 11.

[0057] The current collecting disc feeding mechanism 2 is used for feeding the current collecting disc to the welding and pressing assembly 13. The cell feeding mechanism 3 is used for feeding the cell to the welding and pressing assembly 13. The welding mechanism 4 is used for welding the current collecting disc in the case that the welding and pressing assembly 13 clamps the current collecting disc between the welding pressing head 133 and the end of the cell.

[0058] It can be understood that the current collecting disc feeding station, the cell feeding station and the current collecting disc welding station are sequentially arranged along the circumference of the turret 11, and the current collecting disc feeding mechanism 2, the cell feeding mechanism 3 and the welding mechanism 4 are respectively arranged in one-to-one correspondence with the current collecting disc feeding station, the cell feeding station and the current collecting disc welding station.

[0059] The welding device comprises a mounting frame 41 and a laser welding device 42, and the laser welding device 42 is distributed on the upper side of the current collecting disc welding station. Based on the laser welding device 42, the current collecting disc can be welded to the end of the cell by means of laser penetration welding. Specifically, the laser welding device 42 can be a galvanometer type or a laser type.

[0060] Specifically, by arranging the current collecting disc feeding mechanism 2, the cell feeding mechanism 3, the current collecting disc welding and pressing mechanism 1 and the welding mechanism 4, not only a plurality of sets of welding and pressing assemblies 13 arranged along the circumference are integrated on the turret 11, but also each welding and pressing assembly 13 can be rotated with the turret 11. Therefore, the current collecting disc feeding mechanism 2 can be used to feed the current collecting disc to different welding and pressing assemblies 13 at the current collecting disc feeding station, the cell feeding mechanism 3 can be used to feed the cell to different welding and pressing assemblies 13 at the cell feeding station, and when each welding and pressing assembly moves to the current collecting disc welding station, the current collecting disc can be clamped between the welding pressing head 133 and the end of the cell by the welding and pressing assembly 13, and the welding mechanism 4 can be used to complete the laser welding of the current collecting disc.

[0061] Therefore, the application realizes the integrated design of the plurality of welding and pressing assemblies 13 relative to the turret 11, has low equipment investment cost and occupies small space, and the plurality of welding and pressing assemblies 13 can be sequentially fed with the current collector plate, fed with the battery cell and welded with the current collector plate along the circumferential direction of the turret 11 with the rotation of the turret 11, thereby improving the welding efficiency of the current collector plate.

[0062] In some embodiments, as shown in Figures 2-4 The current collector plate welding and pressing mechanism 1 of the present embodiment is provided with a cam member 12. Along the height direction of the turret 11, the cam member 12 is arranged on the upper side of the welding and pressing assembly 13, and the cam member 12 is arranged along the circumferential direction of the turret 11.

[0063] As shown in Figure 5 and Figure 6 The welding and pressing assembly 13 includes a connecting frame 131, a supporting member 132, a welding and pressing head 133 and a first connecting member 134. The connecting frame 131 is connected with the turret 11, the supporting member 132 is connected with the connecting frame 131, the battery cell feeding mechanism is used for feeding the battery cell carrier 6 containing the battery cell to the supporting member 132, the welding and pressing head 133 is arranged on the upper side of the supporting member 132, the first connecting member 134 is movably arranged on the connecting frame 131 along the height direction, the upper end of the first connecting member 134 is slidably connected with the cam member 12, and the lower end of the first connecting member 134 is connected with the welding and pressing head 133.

[0064] In the case of the rotation of the turret 11, the cam member 12 is used for driving the first connecting member 134 to drive the welding and pressing head 133 to perform the lifting movement, thereby controlling the pressing state of the welding and pressing head 133 to the battery cell on the battery cell carrier 6.

[0065] It can be understood that the turret 11 includes a main shaft 111 and a gear driving disc 112. The main shaft 111 is vertically arranged, the lower end of the main shaft 111 is coaxially connected with the gear driving disc 112, and the gear driving disc 112 is connected with the rotary driving mechanism.

[0066] At the same time, the cam member 12 is located on the upper end of the main shaft 111, and the cam member 12 is fixedly arranged. In the process of the rotation of the main shaft 111, the cam member 12 does not rotate with the main shaft 111. The plurality of welding and pressing assemblies 13 are arranged around the main shaft 111 and are circumferentially distributed relative to the main shaft 111. Each set of welding and pressing assembly 13 can rotate with the main shaft 111.

[0067] Therefore, when the rotary driving mechanism drives the gear driving disc 112 to rotate, the gear driving disc 112 drives the main shaft 111 to rotate around the central axis, so that the main shaft 111 drives the plurality of welding and pressing assemblies 13 to rotate relative to the cam member 12.

[0068] Further, the cam member 12 is provided with a guide structure, which extends along the circumference of the turret 11. In this way, the extension path of the guide structure can be set according to the control requirements of the welding pressure head 133 on the welding pressure assembly 13, so that the guide structure on the cam member 12 can drive the first connecting member 134 to drive the welding pressure head 133 to perform the lifting movement during the rotation of the welding pressure assembly 13 along with the turret 11, thereby controlling the pressing state of the welding pressure head 133 on the battery cell on the battery cell carrier 6.

[0069] When the turret 11 drives the welding pressure assembly 13 to rotate to the current collector welding station, the cam member 12 drives the first connecting member 134 to drive the welding pressure head 133 to descend, so as to clamp the current collector between the welding pressure head 133 and the upper end of the battery cell, so that the welding mechanism can perform laser welding on the current collector under the guidance of the welding pressure head 133, so as to weld the current collector to the upper end of the battery cell.

[0070] As can be seen from the above, the embodiments of the present application configure the turret 11, the cam member 12 and the plurality of welding pressure assemblies 13, which not only can arrange the plurality of welding pressure assemblies 13 based on the turret 11, but also can control the welding pressure head 133 of each welding pressure assembly 13 to perform the lifting movement relative to the battery cell carrier 6 under the guidance of the cam member 12 during the rotation of the turret 11 driving the plurality of welding pressure assemblies 13, so as to clamp the current collector between the welding pressure head 133 and the upper end of the battery cell.

[0071] Therefore, the present application realizes the integrated design of the plurality of welding pressure assemblies 13 relative to the turret 11, occupies a small space, and each welding pressure assembly 13 can clamp the current collector between the welding pressure head 133 and the battery cell under the guidance of the cam member 12, and can sequentially complete the clamping operation on the current collector corresponding to each current collector during the rotation of the turret 11, which is beneficial to ensuring the welding efficiency of the current collector.

[0072] In some embodiments, as shown in Figure 3 and Figure 4 The cam member 12 of the present application is provided with a guide groove 121, and the upper end of the first connecting member 134 is movably arranged in the guide groove 121 along the extension direction of the guide groove 121.

[0073] The guide groove 121 includes a first guide segment 1211, a second guide segment 1212 and a third guide segment 1213, which are sequentially connected; and the first guide segment 1211, the second guide segment 1212 and the third guide segment 1213 are respectively arranged opposite to the current collector loading station, the battery cell loading station and the current collector welding station.

[0074] When the turret 11 drives the welding and pressing assembly 13 to move to the current collector disc feeding station, the first guide section 1211 guides the welding ram 133 to move downward, so that the current collector disc feeding is performed on the lower side of the welding ram 133.

[0075] When the turret 11 drives the welding and pressing assembly 13 to move to the battery cell feeding station, the second guide section 1212 guides the welding ram 133 to move upward, so that the battery cell feeding mechanism can deliver the battery cell carrier 6 and the battery cell carried thereby to the support 132, preventing the upper end of the battery cell from interfering with the welding ram 133.

[0076] When the turret 11 drives the welding and pressing assembly 13 to move to the current collector disc welding station, the third guide section 1213 guides the welding ram 133 to move downward, so that the current collector disc can be clamped between the welding ram 133 and the upper end of the battery cell, and at this time, the welding mechanism can perform laser welding on the current collector disc under the guidance of the welding ram 133, so as to weld the current collector disc to the upper end of the battery cell.

[0077] In some embodiments, in order to ensure that the upper end of the first connecting member 134 and the cam member 12 are better in sliding fit, the upper end of the first connecting member 134 is rotatably provided with a first guide wheel, the first guide wheel is rollably arranged in the guide groove 121 and can move along the extension direction of the guide groove 121.

[0078] In some embodiments, the guide groove 121 can further be provided with a fourth guide section connected to one end of the third guide section 1213 away from the second guide section 1212.

[0079] In this way, after the welding of the current collector disc is completed, the turret 11 drives the welding and pressing assembly 13 to move to the visual inspection station, the fourth guide section guides the welding ram 133 to move upward, so that the welding ram 133 and the current collector disc are separated, at this time, the welding quality of the current collector disc can be detected by using a camera module, and the battery cell can be unloaded.

[0080] In some embodiments, as shown in Figures 3-6 The current collector disc welding and pressing mechanism 1 of the embodiment further comprises a first jacking control member 14; the first jacking control member 14 is arranged along the circumference of the turret 11; along the height direction of the turret 11, the first jacking control member 14 is arranged on the lower side of the welding and pressing assembly 13. The first jacking control member 14 is fixedly arranged, and the first jacking control member 14 does not rotate with the main shaft 111 of the turret 11.

[0081] The welding and pressing assembly 13 further comprises a second connecting member 135, the support 132 is provided with a through hole, the second connecting member 135 is movably arranged in the adapter frame 131 along the height direction, the upper end of the second connecting member 135 extends to the through hole, and the lower end of the second connecting member 135 is in sliding fit with the first jacking control member 14.

[0082] When the turret 11 drives the welding and pressing assembly 13 to rotate to the current collector welding station, the first lifting control member 14 drives the second linkage member 135 to move upward, and the upper end of the second linkage member 135 can pass through the through hole on the support member 132 and abut against the bottom end of the battery cell, so as to further ensure that the current collector is reliably clamped between the welding pressing head 133 and the upper end of the battery cell, so as to perform the welding of the current collector and ensure the welding quality of the current collector.

[0083] Correspondingly, after the welding of the current collector on the upper end of the battery cell is completed, when the turret 11 drives the welding and pressing assembly 13 to move away from the current collector welding station, the first lifting control member 14 drives the second linkage member 135 to move downward, and the upper end of the second linkage member 135 is separated from the bottom end of the battery cell, so that the welding quality of the current collector can be visually detected when the turret 11 drives the welding and pressing assembly 13 to move to the visual detection station.

[0084] In actual application, according to different lengths of the battery cell, different lengths of the second linkage member 135 can be correspondingly configured. In this way, without replacing the cam member 12, when the turret 11 drives the welding and pressing assembly 13 to move away from the current collector welding station, the second linkage member 135 can ensure that the current collector is clamped between the welding pressing head 133 and the upper end of the battery cell with different lengths, so as to perform the welding of the current collector.

[0085] In some embodiments, in order to ensure that the lower end of the second linkage member 135 and the first lifting control member 14 are better in sliding fit, the lower end of the second linkage member 135 is rotatably provided with a second guide wheel, the second guide wheel and the first lifting control member 14 are in rolling fit, and the second guide wheel can move along the extension direction of the first lifting control member 14.

[0086] In this way, the embodiment can adaptively configure the shape of the first lifting control member 14 according to the control requirements of the second linkage member 135, so as to control the lifting of the second linkage member 135 through the first lifting control member 14.

[0087] In some embodiments, as shown in Figures 3-6 The current collector welding and pressing mechanism 1 of the embodiment further includes a second lifting control member 15; the second lifting control member 15 is arranged along the circumference of the turret 11; along the height direction of the turret 11, the second lifting control member 15 is arranged on the lower side of the welding and pressing assembly 13. The second lifting control member 15 is fixedly arranged and does not rotate with the main shaft 111 of the turret 11.

[0088] The welding and pressing assembly 13 further comprises a third linkage 136 movably arranged on the adapter frame 131 in the height direction and a clamping mechanism 137 arranged on the adapter frame 131; the upper end of the third linkage 136 is power-coupled with the clamping mechanism 137, and the lower end of the third linkage 136 is slidingly matched with the second lifting control member 15.

[0089] When the turret 11 drives the welding and pressing assembly 13 to rotate to the current collector welding station, the second lifting control member 15 guides the third linkage 136 to move downward, and the second lifting control member 15 drives the clamping mechanism 137 to be in the clamping state. In this case, the clamping mechanism 137 is clamped on the side wall of the battery cell, so as to position the battery cell, thereby ensuring that the current collector can be reliably clamped between the welding pressing head 133 and the upper end of the battery cell, and further facilitating the guarantee of the welding quality of the current collector.

[0090] Correspondingly, when the turret 11 drives the welding and pressing assembly 13 to move away from the current collector welding station, the second lifting control member 15 guides the third linkage 136 to move upward, and the second lifting control member 15 drives the clamping mechanism 137 to be in the open state. In this case, the clamping mechanism 137 is separated from the side wall of the battery cell, so as to perform visual inspection and discharging processing on the semi-finished battery with the current collector welded.

[0091] In some embodiments, in order to ensure that the lower end of the third linkage 136 and the second lifting control member 15 are well slidingly matched, the lower end of the third linkage 136 is rotatably provided with a third guide wheel, the third guide wheel is rollingly matched with the second lifting control member 15, and the third guide wheel is movable along the extension direction of the second lifting control member 15.

[0092] In this way, the embodiment can adaptively configure the shape of the second lifting control member 15 according to the control requirement of the clamping mechanism 137, so as to control the third linkage 136 through the second lifting control member 15, and thereby control the clamping mechanism 137 to switch between the clamping state and the open state based on the linkage action of the third linkage 136.

[0093] In some embodiments, as shown in Figure 5 and Figure 6 The clamping mechanism 137 of the embodiment comprises a horizontal guide rail 1371, a first clamping jaw 1372 and a second clamping jaw 1373; the horizontal guide rail 1371 is arranged on the adapter frame 131, the first clamping jaw 1372 and the second clamping jaw 1373 are movably arranged on the horizontal guide rail 1371, and the clamping space is formed between the first clamping jaw 1372 and the second clamping jaw 1373.

[0094] The upper end of the third connecting member 136 is rotatably arranged on the first connecting rod 139 and the second connecting rod 1310, the first connecting rod 139 and the first clamping jaw 1372 are rotatably connected, and the second connecting rod 1310 and the second clamping jaw 1373 are rotatably connected.

[0095] Specifically, the first clamping jaw 1372 and the second clamping jaw 1373 are arranged in left and right opposition on the horizontal guide rail 1371; the left region of the upper end of the third connecting member 136 is rotatably connected with the first end of the first connecting rod 139, the second end of the first connecting rod 139 is rotatably connected with the first clamping jaw 1372; and the right region of the upper end of the third connecting member 136 is rotatably connected with the first end of the second connecting rod 1310, and the second end of the second connecting rod 1310 is rotatably connected with the second clamping jaw 1373.

[0096] In actual application, when the turret 11 drives the welding and pressing assembly 13 to move to the current collector welding station, the second lifting control member 15 guides the third connecting member 136 to move downward, and the third connecting member 136 drives the first clamping jaw 1372 and the second clamping jaw 1373 to move towards each other through the first connecting rod 139 and the second connecting rod 1310, so that the clamping mechanism 137 is in a clamping state, so that the clamping mechanism 137 clamps the battery cell.

[0097] When the turret 11 drives the welding and pressing assembly 13 to move away from the current collector welding station, the second lifting control member 15 guides the third connecting member 136 to move upward, and the third connecting member 136 drives the first clamping jaw 1372 and the second clamping jaw 1373 to move away from each other through the first connecting rod 139 and the second connecting rod 1310, so that the clamping mechanism 137 is in an open state, so that the clamping mechanism 137 releases the clamping of the battery cell.

[0098] In some embodiments, as shown in Figure 5 and Figure 6 the welding and pressing assembly 13 of the present embodiment further comprises a floating connection assembly 138.

[0099] The floating connection assembly 138 comprises a vertical guide rail 1381 and a sliding block 1382, the vertical guide rail 1381 is arranged on the adapter frame 131 along the height direction, and the sliding block 1382 is movably arranged on the vertical guide rail 1381, and the sliding block 1382 is connected with the horizontal guide rail 1371 corresponding to the clamping mechanism 137.

[0100] Specifically, by arranging the floating connection assembly 138, the present embodiment can ensure that the height of the clamping mechanism 137 relative to the supporting member 132 can be adjusted to a certain extent, and the clamping mechanism 137 can clamp and fix the battery cell when the length of the battery cell changes.

[0101] In some embodiments, as shown in Figure 5 and Figure 6As shown, the welding and pressing assembly 13 of the embodiment further comprises a clamping member 1311. The clamping member 1311 is arranged on the supporting member 132 and clamped to the peripheral wall of the battery cell carrier 6 to drive the battery cell carrier 6 to rotate together.

[0102] Specifically, the clamping member 1311 has an arc-shaped clamping surface which is in abutment with the peripheral wall of the battery cell carrier 6. In this way, the battery cell carrier 6 can be positioned by the clamping member 1311, so as to prevent the battery cell carrier 6 from being displaced on the supporting member 132 as the welding and pressing assembly 13 rotates.

[0103] In some embodiments, as shown in Figure 5 and Figure 6 In order to further limit the position of the battery cell carrier 6 on the supporting member 132 and prevent the battery cell carrier 6 from being displaced on the supporting member 132, the current collecting plate welding and pressing mechanism 1 of the embodiment further comprises a limiting member 16.

[0104] The limiting member 16 extends along the periphery of the turret 11 and is arranged outside the plurality of welding and pressing assemblies 13. The limiting member 16 is used to limit the battery cell carrier 6 on the supporting member 132.

[0105] Based on the above-mentioned embodiments, as shown in Figure 7 The welding head 133 of the embodiment comprises a head body 1331. The head body 1331 has an attaching surface for attaching to the current collecting plate and a welding surface corresponding to the attaching surface. A tool hole 1332 is formed in the welding surface and penetrates the attaching surface. The welding mechanism can perform laser welding on the current collecting plate along the welding path provided by the tool hole 1332.

[0106] Further, the attaching surface of the head body 1331 is provided with a negative pressure suction port which is in communication with a negative pressure gas adapter 1333 through a first gas channel arranged in the head body 1331.

[0107] Due to the connection of the negative pressure gas adapter 1333 and the negative pressure device, the current collecting plate conveyed by the current collecting plate feeding mechanism will be attracted to the attaching surface of the head body 1331 under the negative pressure of the negative pressure suction port, so that the current collecting plate can move together with the welding and pressing assembly 13.

[0108] In some embodiments, as shown in Figure 7 The head body 1331 of the embodiment is provided with a protective gas outlet which extends along the extension direction of the tool hole 1332. The protective gas outlet is in communication with a protective gas adapter 1334 through a second gas channel arranged in the head body 1331.

[0109] The negative pressure suction port, the protective gas outlet, the first gas channel and the second gas channel are in communication withFigure 7 The details are not shown in the figure.

[0110] Thus, the welding pressure head 133 of the embodiment not only provides path guidance for the welding of the current collector plate, but also blows protective gas to the welding position on the current collector plate through the protective gas outlet during the welding of the current collector plate, so as to ensure the welding quality of the current collector plate.

[0111] It should be pointed out here that the protective gas can be a single gas, a binary mixed gas or a ternary mixed gas. During the welding of the current collector plate, the protective gas is mainly used to reduce the heating width on the current collector plate and avoid material oxidation.

[0112] The single gas can be argon or carbon dioxide, the binary mixed gas can be argon and oxygen, argon and carbon dioxide, argon and helium, and argon and hydrogen. The ternary mixed gas can be a mixed gas composed of helium, argon and carbon dioxide.

[0113] In actual application, the binary mixed gas and the ternary mixed gas can be configured with different components and proportions according to different welding materials.

[0114] Based on the scheme of the above embodiment, as shown in Figure 8 In order to facilitate the feeding of the current collector plate, the current collector plate feeding mechanism 2 of the embodiment comprises a first conveying line 21, a first transfer disc 22, a second transfer disc 23 and a second conveying line 24.

[0115] The first conveying line 21 is connected with the first transfer disc 22, the first transfer disc 22 and the second transfer disc 23 are arranged on one side of the turret and correspond to the position of the current collector plate feeding station, and the second conveying line 24 is connected with the second transfer disc 23.

[0116] In actual application, a plurality of current collector plate carriers can be placed on the first conveying line 21 along the conveying direction thereof, each current collector plate carrier supports a current collector plate, and the first conveying line 21 conveys the current collector plate carrier supporting the current collector plate to the first transfer disc 22.

[0117] Then, the first transfer disc 22 drives the current collector plate carrier to move to the supporting piece 132 of the welding pressure assembly. In this process, since the welding pressure head 133 descends to the adhering surface on the pressure head body 1331 and the current collector plate is adhered, under the negative pressure effect at the negative pressure suction port, the current collector plate is adsorbed on the adhering surface of the welding pressure head 133, so that the welding pressure head 133 completes the feeding of the current collector plate; then, the current collector plate is adhered to the adhering surface of the welding pressure head 133 under the negative pressure effect at the negative pressure suction port, and the welding pressure head 133 drives the current collector plate to move together toward the current collector plate welding station.

[0118] Then, since the second adapter disc 23 is located on the moving path of the current collector disc carrier on the supporting member 132, as the welding and pressing assembly 13 moves circumferentially, the current collector disc carrier supported on the supporting member 132 moves to the second adapter disc 23, so that the second adapter disc 23 moves the current collector disc carrier that has finished taking the current collector to the second conveying line 24.

[0119] Finally, the second conveying line 24 conveys the current collector disc carriers.

[0120] In some embodiments, as shown in FIG. 5, the battery cell feeding mechanism 3 of the present embodiment includes a third conveying line 31 and a third adapter disc 32. Figure 9

[0121] The third conveying line 31 and the third adapter disc 32 are connected, the third adapter disc 32 is arranged on one side of the turret and corresponds to the position of the battery cell feeding station.

[0122] Specifically, the third adapter disc 32 can be provided with two, the third conveying line 31 conveys the battery cell carrier 6 containing the battery cell to the first third adapter disc 32, and then the first third adapter disc 32 moves the battery cell carrier 6 to the second third adapter disc 32, and then under the guidance of the limiting member 16, the second third adapter disc 32 conveys the battery cell carrier 6 to the supporting member 132 of the welding and pressing assembly, and the battery cell carrier 6 supported by the supporting member 132 of the welding and pressing assembly moves towards the current collector welding station, so as to clamp the current collector between the welding and pressing head 133 of the welding and pressing assembly and the upper end of the battery cell in the current collector welding station, thereby facilitating the welding of the current collector by the welding mechanism 4.

[0123] In some embodiments, as shown in FIG. 5, the battery cell feeding mechanism 3 of the present embodiment includes a third conveying line 31 and a third adapter disc 32. Figure 1 The visual sorting assembly 51 is arranged on one side of the turret and corresponds to the position of the discharging station to visually detect the semi-finished battery that has finished welding of the current collector; in the case that the semi-finished battery is an unqualified product, the visual sorting assembly 51 conveys the unqualified product to the defective product removing conveying line 52; in the case that the semi-finished battery is a qualified product, the visual sorting assembly 51 conveys the qualified product to the good product conveying line 53.

[0124] Specifically, the visual sorting assembly 51 can be provided with a first moving disc, a sorting disc, a second moving disc, a third moving disc and a visual detection assembly.

[0125]

[0126] ​​The first transfer disc is arranged at the unloading station of the turret, the visual detection assembly is arranged at the upper side of the first transfer disc, the first transfer disc is connected with the sorting disc, the sorting disc is connected with the second transfer disc and the third transfer disc respectively, the second transfer disc is connected with one end of the defective product removing conveying line 52, and the third transfer disc is connected with one end of the qualified product conveying line 53. The visual detection assembly comprises an industrial camera.

[0127] In actual application, the first transfer disc receives the semi-finished battery on which the current collecting plate is welded by the welding and pressing assembly. During the process that the semi-finished battery is conveyed by the first transfer disc towards the sorting disc, the visual detection assembly collects the current collecting plate welding image, and judges the welding quality of the current collecting plate at the upper end of the battery according to the current collecting plate welding image.

[0128] Therefore, when the visual detection assembly determines that the semi-finished battery is unqualified product, the sorting disc conveys the unqualified product to the second transfer disc, and then the second transfer disc conveys the unqualified product to the defective product removing conveying line 52, so that the defective product removing conveying line 52 can concentrate and store the unqualified product.

[0129] When the visual detection assembly determines that the semi-finished battery is qualified product, the sorting disc conveys the qualified product to the third transfer disc, and then the third transfer disc conveys the qualified product to the qualified product conveying line 53, so that the qualified product conveying line 53 can concentrate and store the qualified product.

[0130] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A turret busbar welding system characterized by, The utility model relates to a kind of battery cell welding device, including: Current collector disc feeding mechanism, cell feeding mechanism, current collector disc welding and pressing mechanism and welding mechanism; The current collector disc welding and pressing mechanism includes turret and multiple sets of welding and pressing components, the welding and pressing component includes welding pressure head, and multiple sets of the welding and pressing component are respectively arranged along the circumference of the turret;The current collector disc feeding mechanism, the cell feeding mechanism and the welding mechanism are arranged around the turret; The current collector disc feeding mechanism is used for current collector disc feeding to the welding and pressing component;The cell feeding mechanism is used for cell feeding to the welding and pressing component;The welding mechanism is used for welding to the current collector disc in the case that the welding and pressing component clamps current collector disc between the welding pressure head and the end of cell; The current collector disc welding and pressing mechanism further includes cam member;Along the height direction of the turret, the cam member is located on the upper side of the welding and pressing component;The cam member is arranged along the circumference of the turret; The welding and pressing component includes adapter, support, welding pressure head and first linkage;The adapter is connected with the turret, the support is connected with the adapter, and the cell feeding mechanism is used to deliver cell carrier containing cell to the support;The welding pressure head is located on the upper side of the support, and the first linkage is movably arranged on the adapter along the height direction;The upper end of the first linkage is slidingly connected with the cam member, and the lower end of the first linkage is connected with the welding pressure head;Wherein, in the case that the turret rotates, the cam member drives the first linkage to drive the welding pressure head to move up and down, so as to control the pressing state of the welding pressure head to the cell on the cell carrier; The current collector disc welding and pressing mechanism further includes second lifting control member;The second lifting control member is arranged along the circumference of the turret;Along the height direction of the turret, the second lifting control member is located on the lower side of the welding and pressing component; The welding and pressing component further includes third linkage and clamping mechanism, the third linkage is movably arranged on the adapter along the height direction, and the clamping mechanism is arranged on the adapter;The upper end of the third linkage is dynamically coupled with the clamping mechanism, and the lower end of the third linkage is slidingly connected with the second lifting control member; In the case that the turret drives the welding and pressing component to rotate to the position corresponding to the welding mechanism, the second lifting control member guides the third linkage to go down, and the second lifting control member drives the clamping mechanism to be in clamping state; In the case that the turret drives the welding and pressing component to leave the position corresponding to the welding mechanism, the second lifting control member guides the third linkage to go up, and the second lifting control member drives the clamping mechanism to be in open state. The current collector plate welding and pressing mechanism further comprises a first jacking control member; the first jacking control member is arranged along the circumference of the turret; along the height direction of the turret, the first jacking control member is arranged on the lower side of the welding and pressing assembly; the welding and pressing assembly further comprises a second connecting member, the supporting member is provided with a through hole, and the second connecting member is movably arranged on the adapter along the height direction, the upper end of the second connecting member extends to the through hole, and the lower end of the second connecting member is in sliding fit with the first jacking control member; in the case that the turret drives the welding and pressing assembly to rotate to the position corresponding to the welding mechanism, the first jacking control member drives the second connecting member to move upward, so that the upper end of the second connecting member abuts against the bottom end of the battery cell; The clamping mechanism comprises a horizontal guide rail, a first clamping jaw and a second clamping jaw; the horizontal guide rail is arranged on the adapter, and the first clamping jaw and the second clamping jaw are movably arranged on the horizontal guide rail; a clamping space is formed between the first clamping jaw and the second clamping jaw; the upper end of the third connecting member is rotatably provided with a first connecting rod and a second connecting rod, the first connecting rod is rotatably connected with the first clamping jaw, and the second connecting rod is rotatably connected with the second clamping jaw.

2. The turret busbar welding system of claim 1, wherein, The cam member is provided with a guide groove, and the upper end of the first connecting member is movably arranged in the guide groove along the extension direction of the guide groove; The guide groove comprises a first guide segment, a second guide segment and a third guide segment, and the first guide segment, the second guide segment and the third guide segment are sequentially connected; the first guide segment, the second guide segment and the third guide segment are respectively arranged opposite to the current collector plate feeding mechanism, the battery cell feeding mechanism and the welding mechanism one by one; The first guide segment is used for guiding the welding pressure head to move downward, so as to feed the current collector plate on the lower side of the welding pressure head; the second guide segment is used for guiding the welding pressure head to move upward, so that the battery cell feeding mechanism conveys the battery cell carrier to the supporting member; and the third guide segment is used for guiding the welding pressure head to move downward, so as to clamp and fix the current collector plate.

3. The turret busbar welding system of claim 1 or 2, wherein, The welding pressure head comprises a pressure head body; The pressure head body has an attaching surface for attaching to the current collector plate and a welding surface corresponding to the attaching surface, and a tool hole penetrating towards the attaching surface is formed in the welding surface; The attaching surface of the pressure head body is provided with a negative pressure suction port, and the negative pressure suction port is in communication with a negative pressure gas adapter through a first gas channel arranged in the pressure head body; The pressure head body is provided with a protective gas outlet, and the protective gas outlet is arranged along the extension direction of the tool hole; the protective gas outlet is in communication with a protective gas adapter through a second gas channel arranged in the pressure head body.

4. The turret busbar welding system of claim 1 or 2, wherein The current collector plate feeding mechanism comprises a first conveying line, a first adapter disc, a second adapter disc and a second conveying line; The first conveying line and the first adapter disc are connected, the first adapter disc and the second adapter disc are arranged on one side of the turret in a spaced manner, and the second conveying line and the second adapter disc are connected. The first conveying line is used for conveying the current collector carrier supporting the current collector to the first transfer disc; The first transfer disc is used for driving the current collector carrier to move to the welding and pressing assembly, so that the welding pressure head takes the current collector; The second transfer disc is used for supporting the current collector carrier on the welding and pressing assembly and transferring the current collector carrier to the second conveying line; and the second conveying line is used for conveying the current collector carrier.

5. The turret busbar welding system of claim 1 or 2, wherein, The cell feeding mechanism comprises a third conveying line and a third transfer disc; The third conveying line and the third transfer disc are connected, and the third transfer disc is arranged on one side of the turret; The third conveying line is used for conveying the cell carrier containing the cell to the third transfer disc, and the third transfer disc is used for driving the cell carrier to be transferred to the welding and pressing assembly.

6. The turret busbar welding system of claim 1 or 2, wherein, The turret type current collector welding system further comprises a rejection mechanism; The rejection mechanism comprises a visual sorting assembly, a defective product rejection conveying line and a qualified product conveying line; the visual sorting assembly is arranged on one side of the turret to visually detect the semi-finished battery after the current collector is welded; in the case that the semi-finished battery is an unqualified product, the visual sorting assembly conveys the unqualified product to the defective product rejection conveying line; in the case that the semi-finished battery is a qualified product, the visual sorting assembly conveys the qualified product to the qualified product conveying line.

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