Bus bar cutting mechanism and bus bar preparation device

Abstract

The invention provides a bus bar cutting mechanism and a bus bar manufacturing device.The bus bar cutting mechanism comprises a female die mounting plate, a male die mounting plate, a lifting driving mechanism and at least two of a right-angle cutting assembly, a round corner cutting assembly and a punching assembly, and the right-angle cutting assembly comprises a right-angle female die and a right-angle male die; the fillet cutting assembly comprises a fillet female die and a fillet male die. The punching assembly comprises a punching female die and a punching male die. The right-angle male die, the fillet male die and the punching male die are installed on a male die installation plate through respective die closing control mechanisms, and the male die installation plate is installed at the driving end of the lifting driving mechanism. The right-angle female die, the fillet female die and the punching female die are arranged on the female die mounting plate at intervals on the advancing path of the bus bar to be cut. According to the bus bar cutting mechanism, any single operation or any combined operation of right-angle cutting, round-corner cutting and punching of the bus bar can be completed, so that the cutting efficiency is improved, and the cutting cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic module preparation, and specifically to a busbar cutting mechanism and a busbar preparation device. Background Art

[0002] During the production of photovoltaic modules, one of the processes is to weld busbars to the ends of the arranged battery strings. Before welding the busbars, the rolled busbars need to be cut into busbar segments of a certain length. For busbars with different positions on the battery string and different process requirements, there will be different requirements for the cutting shape of the busbar ends. Some busbars require both ends to be cut into right angles, some busbars require both ends to be cut into rounded corners, and some busbars require one end to be cut into a right angle and the other end to be rounded. In addition, some busbars require punching at the ends.

[0003] The existing busbar cutting mechanism has a single function and cannot meet the different cutting requirements of the busbar. Therefore, the existing busbar cutting method is to sequentially set up multiple cutting mechanisms with different cutting functions to complete the corresponding cutting operations in sequence. The existing busbar cutting method has low cutting efficiency and high cutting cost. Summary of the invention

[0004] In view of the above technical problems existing in the existing busbar cutting mechanism, the present application provides a busbar cutting mechanism, and its detailed technical solution is as follows:

[0005] A busbar cutting mechanism comprises a die mounting plate, a punch mounting plate, a lifting drive mechanism, and at least two of a right-angle cutting assembly, a rounded-angle cutting assembly, and a punching assembly, wherein:

[0006] The male die mounting plate and the female die mounting plate are arranged up and down, and a conveying space for the busbar to be cut to pass through is formed between the male die mounting plate and the female die mounting plate; the lifting drive mechanism is drivingly connected to the male die mounting plate or the female die mounting plate, and is used to drive one of the male die mounting plate and the female die mounting plate to lift toward or away from the other;

[0007] The right-angle cutting component includes a right-angle die and a right-angle punch, the rounded-angle cutting component includes a rounded-angle die and a rounded-angle punch, and the punching component includes a punching die and a punch;

[0008] The right-angle die, the rounded-corner die and the punching die are arranged on the die mounting plate at intervals on the travel path of the busbar to be cut;

[0009] The right-angle punch is installed on the punch mounting plate through the first mold clamping control mechanism and is vertically opposite to the right-angle die. The first mold clamping control mechanism is used to control whether the right-angle punch is clamped with the right-angle die when the punch mounting plate and the die mounting plate are close to each other; when the right-angle punch is clamped with the right-angle die, a busbar with a right-angle end is cut out; when the right-angle punch is not clamped with the right-angle die, the right-angle cutting assembly does not perform a cutting action;

[0010] The rounded corner punch is installed on the punch mounting plate through the second mold clamping control mechanism and is directly opposite to the rounded corner die. The second mold clamping control mechanism is used to control whether the rounded corner punch is clamped with the rounded corner die when the punch mounting plate and the die mounting plate are close to each other; when the rounded corner punch is clamped with the rounded corner die, a bus bar with a rounded corner end is cut out, and when the rounded corner punch is not clamped with the rounded corner die, the rounded corner cutting assembly does not perform a cutting action;

[0011] The punching punch is installed on the punch mounting plate through the third mold clamping control mechanism and is directly opposite to the punching die up and down. The third mold clamping control mechanism is used to control whether the punching punch is clamped with the punching die when the punch mounting plate and the die mounting plate are close to each other. When the punching punch is clamped with the punching die, the busbar is punched. When the punching punch is not clamped with the punching die, the punching assembly does not perform the punching action.

[0012] According to the cutting requirements of the busbar, the busbar cutting mechanism provided by the present application can complete any single operation and any combination of right-angle cutting, rounded corner cutting and punching of the busbar. Compared with the existing cutting method of completing the corresponding cutting operations in sequence through multiple cutting mechanisms, the busbar cutting mechanism of the present application improves the cutting efficiency and reduces the cutting cost.

[0013] In some embodiments, the first mold closing control mechanism includes a first elastic connecting portion and a first locking portion, and the right-angle punch is connected to the punch mounting plate movably up and down via the first elastic connecting portion; the first locking portion is arranged on the punch mounting plate, and the first locking portion is used to lock the right-angle punch on the punch mounting plate to prevent the right-angle punch from moving upward, so that the right-angle punch can be closed with the right-angle die; the first locking portion is also used to release the lock of the right-angle punch, so that the right-angle punch can move upward when contacting the busbar to be cut, and not be closed with the right-angle die; the second mold closing control mechanism includes a second elastic connecting portion and a second locking portion, and the rounded corner punch is connected to the punch mounting plate movably up and down via the second elastic connecting portion; the second locking portion is arranged on the punch mounting plate, and the second locking portion is used to lock the rounded corner punch The third locking portion is fixed on the punch mounting plate to prevent the rounded corner punch from moving upward so that the rounded corner punch can be molded with the rounded corner die; the second locking portion is also used to release the lock of the rounded corner punch so that the rounded corner punch can move upward when contacting the busbar to be cut without being molded with the rounded corner die; the third mold-closing control mechanism includes a third elastic connecting portion and a third locking portion, and the punching punch is connected to the punch mounting plate movably up and down via the third elastic connecting portion; the third locking portion is arranged on the punch mounting plate, and the third locking portion is used to lock the punching punch on the punch mounting plate to prevent the punching punch from moving upward so that the punching punch can be molded with the punching die; the third locking portion is also used to release the lock of the punching punch so that the punching punch can move upward when contacting the busbar to be cut without being molded with the punching die.

[0014] The right-angle punch is connected to the punch mounting plate via the first elastic connection part so as to be movable up and down. When the first locking part locks the right-angle punch on the punch mounting plate, the right-angle punch cannot move upward any more. Therefore, when the punch mounting plate and the die mounting plate are close to each other, the right-angle punch can further descend after contacting the busbar to be cut until it is molded with the right-angle die, thereby completing the right-angle cutting of the busbar. When the first locking part releases the lock on the right-angle punch, the right-angle punch can compress the first elastic connection part and then move upward after receiving the upward force. Therefore, when the punch mounting plate and the die mounting plate are close to each other, the right-angle punch contacts the busbar to be cut and is forced to move upward, thereby failing to mold with the right-angle die. Similarly, the rounded corner punch is connected to the punch mounting plate via the second elastic connection part so as to be movable up and down. When the second locking part locks the rounded corner punch on the punch mounting plate, the rounded corner punch cannot move upward any more. Therefore, when the punch mounting plate and the die mounting plate are close to each other, the rounded corner punch can further descend after contacting the busbar to be cut until it is molded with the rounded corner die, thereby completing the rounded corner cutting of the busbar. When the second locking part releases the lock on the rounded corner punch, the rounded corner punch can compress the second elastic connection part and then move upward after receiving the upward force. Therefore, when the punch mounting plate and the die mounting plate are close to each other, the rounded corner punch contacts the busbar to be cut and is forced to move upward, thereby failing to mold with the rounded corner die. Similarly, the punching punch is connected to the punch mounting plate via the third elastic connection part so as to be movable up and down. When the third locking part locks the punching punch on the punch mounting plate, the punching punch cannot move upward any more. Therefore, when the punch mounting plate and the die mounting plate are close to each other, the punching punch can further descend after contacting the busbar to be cut until it is engaged with the punching die, thereby completing the punching of the busbar. When the third locking part releases the lock on the punching punch, the punching punch can compress the third elastic connection part and then move upward after receiving an upward force. Therefore, when the punch mounting plate and the die mounting plate are close to each other, the punching punch contacts the busbar to be cut and is forced to move upward, thereby failing to engage with the punching die.

[0015] In some embodiments, a straight first static cutting edge is provided on the first side wall of the right-angle die, and a straight second static cutting edge is provided on the second side wall of the right-angle die; a straight first dynamic cutting edge and a straight second dynamic cutting edge are respectively provided on opposite sides of the lower end of the right-angle punch; when the right-angle punch and the right-angle die are closed, the first static cutting edge and the first dynamic cutting edge cooperate to cut the bus bar from the first position, and the second static cutting edge and the second dynamic cutting edge cooperate to cut the bus bar from the second position.

[0016] By setting the right-angle punch and the right-angle die, when the right-angle punch and the right-angle die are combined, the busbar with the right-angle end can be automatically cut out, and two busbars with the right-angle end can be obtained at the same time through one cutting, thereby improving the cutting efficiency.

[0017] In some embodiments, a third static cutting blade with an arc shape protruding into the rounded corner die is provided on the first side wall of the rounded corner die, and a fourth static cutting blade with an arc shape protruding into the rounded corner die is provided on the second side wall of the rounded corner die; the opposite side walls of the lower end of the rounded corner punch are respectively provided with a third dynamic cutting blade with an arc shape protruding into the rounded corner die, and the third dynamic cutting blade matches the third static cutting blade, and the fourth dynamic cutting blade matches the fourth static cutting blade; when the lower end of the rounded corner punch is molded with the rounded corner die, the third static cutting blade and the third dynamic cutting blade cooperate to cut the bus bar from the third position, and the fourth static cutting blade and the fourth dynamic cutting blade cooperate to cut the bus bar from the fourth position.

[0018] By setting the rounded corner punch and the rounded corner die, when the rounded corner punch and the rounded corner die are combined, the busbar with rounded ends can be automatically cut out, and two busbars with rounded ends can be obtained at the same time through one cutting, thereby improving the cutting efficiency.

[0019] In some embodiments, there are two punching assemblies, namely a first punching assembly and a second punching assembly. The punching die of the first punching assembly and the punching die of the second punching assembly are spaced apart on the travel path of the busbar to be cut, and are respectively arranged on both sides of the right-angle die or the rounded-angle die.

[0020] By arranging two sets of punching assemblies, punching holes are formed at the ends of the two busbars obtained by each cutting.

[0021] In some embodiments, the busbar cutting mechanism includes a lifting guide rod, wherein: the lifting guide rod is arranged in a vertical direction, one end of the lifting guide rod is fixedly connected to one of the die mounting plate and the punch mounting plate, and the other end of the lifting guide rod is slidably connected to the other of the die mounting plate and the punch mounting plate.

[0022] By setting a lifting guide rod, the lifting and guiding of the die mounting plate or the punch mounting plate is achieved, thereby ensuring that the right-angle punch and the right-angle die, the rounded corner punch and the rounded corner die, and the punching punch and the punching die can all be accurately matched.

[0023] In some embodiments, the first elastic connection portion includes a first guide rod and a first spring, wherein one end of the first guide rod is fixedly connected to one of the punch mounting plate and the right-angle punch, and the other end of the first guide rod is slidably connected to the other of the punch mounting plate and the right-angle punch; the first spring is sleeved on the first guide rod, the upper end of the first spring abuts on the punch mounting plate, and the lower end of the first spring abuts on the right-angle punch; the second elastic connection portion includes a second guide rod and a second spring, wherein one end of the second guide rod is fixedly connected to one of the punch mounting plate and the rounded punch, and the other end of the second guide rod is slidably connected to the other of the punch mounting plate and the right-angle punch; The third spring is sleeved on the second guide rod, the upper end of the second spring abuts on the punch mounting plate, and the lower end of the second spring abuts on the rounded corner punch; the third elastic connecting part includes a third guide rod and a third spring, wherein one end of the third guide rod is fixedly connected to one of the punch mounting plate and the punching punch, and the other end of the third guide rod is slidably connected to the other of the punch mounting plate and the punching punch; the third spring is sleeved on the third guide rod, the upper end of the third spring abuts on the punch mounting plate, and the lower end of the third spring abuts on the punching punch.

[0024] By setting the first elastic connection part, the right-angled punch can move upward relative to the punch mounting plate to compress the first spring when subjected to the reverse force of the busbar when the right-angled punch is not locked on the punch mounting plate by the first locking part, and can also move downward relative to the punch mounting plate to return to its original position during the first spring reset process, and the first guide rod guides the movement of the right-angled punch. Similarly, by setting the second elastic connection part, the rounded corner punch can move upward relative to the punch mounting plate to compress the second spring when subjected to the reverse force of the busbar when the right-angled punch is not locked on the punch mounting plate by the second locking part, and can also move downward relative to the punch mounting plate to return to its original position during the second spring reset process, and the second guide rod guides the movement of the rounded corner punch. Similarly, by setting the third elastic connecting part, the punching punch can, when not locked on the punch mounting plate by the third locking part, move upward relative to the punch mounting plate to compress the third spring when subjected to the reverse force of the bus bar, and can also move downward relative to the punch mounting plate to return to its original position during the resetting process of the third spring, and the third guide rod realizes the movement guidance of the punching punch.

[0025] In some embodiments, the first locking portion includes a first linear drive portion and a first pressure block, wherein the first linear drive portion is mounted on the punch mounting plate, the first pressure block is connected to the driving end of the first linear drive portion, and the first linear drive portion is used to drive the first pressure block to move toward or away from the right-angle punch, so that the first pressure block presses against or disengages from the upper end surface of the right-angle punch; the second locking portion includes a second linear drive portion and a second pressure block, wherein the second linear drive portion is mounted on the punch mounting plate, the second pressure block is connected to the driving end of the second linear drive portion, and the second linear drive portion is used to drive the second pressure block to move toward or away from the rounded corner punch, so that the second pressure block presses against or disengages from the upper end surface of the rounded corner punch; the third locking portion includes a third linear drive portion and a third pressure block, wherein the third linear drive portion is mounted on the punch mounting plate, the third pressure block is connected to the driving end of the third linear drive portion, and the third linear drive portion is used to drive the third pressure block to move toward or away from the punching punch, so that the third pressure block presses against or disengages from the upper end surface of the punching punch.

[0026] A locking part with a simple structure and fast control speed is provided, which drives a pressing block to move and switch between a release position and a locking position through a linear driving part, thereby locking a corresponding right-angle punch, a rounded corner punch or a punching punch.

[0027] In some embodiments, the busbar cutting mechanism also includes a pressing block and an elastic buffer assembly, wherein: the pressing block is connected to the punch mounting plate via the elastic buffer assembly and is located below the punch mounting plate; when the lifting drive mechanism drives the punch mounting plate and the die mounting plate to approach each other, the pressing block elastically presses the busbar against the die mounting plate.

[0028] When the lifting drive mechanism drives the punch mounting plate and the die mounting plate to move closer, the pressing block first elastically presses the busbar against the upper end surface of the die mounting plate, and then the right-angle punch, rounded-angle punch or punching punch is combined with the corresponding right-angle die, rounded-angle die or punching die to cut or punch the busbar. In this way, the cut end of the busbar can be effectively prevented from warping up during cutting.

[0029] In some embodiments, the elastic buffer assembly includes a fourth guide rod and a fourth spring, wherein: the lower end of the fourth guide rod is fixedly connected to the pressure block, and the upper end of the fourth guide rod is slidably connected to the punch mounting plate; the fourth spring is sleeved on the fourth guide rod, wherein the lower end of the fourth spring abuts against the pressure block, and the upper end of the fourth spring abuts against the punch mounting plate.

[0030] A realization structure of an elastic buffer assembly is provided. After the pressing block presses the bus bar, as the male die mounting plate and the female die mounting plate continue to approach each other, the pressing block can move upward to compress the fourth spring, thereby realizing elastic compression of the bus bar.

[0031] In some embodiments, a first blanking hole connected to the right-angle die, a second blanking hole connected to the rounded corner die, and a third blanking hole connected to the punching die are also provided in the die mounting plate; a hopper for receiving waste falling from the first blanking hole, the second blanking hole and the third blanking hole is also provided on the die mounting plate.

[0032] By setting a first blanking hole below the right-angle die, the waste material cut off by the right-angle punch and the right-angle die falls into the first blanking hole, thereby preventing the right-angle die from being occupied by waste material and affecting the next cutting. Similarly, by setting a second blanking hole below the rounded corner die, the waste material cut off by the rounded corner punch and the rounded corner die falls into the second blanking hole, thereby preventing the rounded corner die from being occupied by waste material and affecting the next cutting. Similarly, by setting a third blanking hole below the punching die, the waste material cut off by the punching punch and the punching die falls into the third blanking hole, thereby preventing the punching die from being occupied by waste material and affecting the next cutting. By setting a hopper, the waste material falling from the first blanking hole, the second blanking hole and the third blanking hole can be collected.

[0033] In some embodiments, the busbar cutting mechanism also includes a busbar guide assembly, which is arranged on one side of the die mounting plate or symmetrically arranged on both sides of the die mounting plate. The busbar guide assembly includes a first guide wheel and a second guide wheel arranged side by side, and a guide gap is formed between the first guide wheel and the second guide wheel for the busbar to be cut to pass through.

[0034] By arranging the busbar guide assembly, the busbar can be guided to ensure that the busbar can pass over the right-angle die, the rounded-angle die and the punching die.

[0035] The present application also provides a busbar preparation device, which includes a feeding mechanism, a pressing mechanism, a traction mechanism and the busbar cutting mechanism described in any one of the above items, wherein: the feeding mechanism is used to feed out the busbar; the traction mechanism is used to pull the busbar fed out by the feeding mechanism, so that the busbar passes through the pressing mechanism and the busbar cutting mechanism in sequence; the pressing mechanism is used to press the busbar, and the busbar cutting mechanism is used to cut the pressed busbar to obtain a busbar segment with a predetermined length, and the cut busbar segment has at least one of a right-angle end and a rounded end.

[0036] Through the cooperation of the unloading mechanism, the pressing mechanism, the busbar cutting mechanism and the pulling mechanism, the busbar preparation device realizes the automatic preparation of the busbar segment having at least a right-angle end or a rounded end. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a schematic structural diagram of a busbar cutting mechanism in an embodiment of the present application at a first viewing angle;

[0038] Figure 2 is a schematic structural diagram of the busbar cutting mechanism in the embodiment of the present application at a second viewing angle;

[0039] Figure 3 for Figure 2 BB cross-sectional view;

[0040] Figure 4 Schematic diagram of the installation relationship between the male die mounting plate and the female die mounting plate in the embodiment of the present application (the lifting guide rod on one side is omitted);

[0041] Figure 5 for Figure 4 GG cross-sectional view;

[0042] Figure 6 for Figure 4 FF cross-sectional view;

[0043] Figure 7 for Figure 4 II sectional view;

[0044] Figure 8 for Figure 4 JJ sectional view;

[0045] Fig. 9 for Figure 4 A top view of

[0046] Fig.10 for Fig. 9 The schematic diagram after omitting the top plate of the punch mounting plate;

[0047] Fig.11 for Fig.10 KK cross-sectional view;

[0048] Fig.12 A top view of the press block in the embodiment of the present application;

[0049] Fig.13 A top view of a die mounting plate in an embodiment of the present application;

[0050] Fig.14 Schematic diagram of the structure of the rounded corner punch in the embodiment of the present application;

[0051] Fig.15 It is a schematic diagram of the structure of the right-angle punch in the embodiment of the present application;

[0052] Fig.16 Schematic diagram of the structure of the punching punch in the embodiment of the present application;

[0053] Fig.17 A schematic diagram of the structure of a battery string group consisting of 6 groups of 12 half-cell battery strings;

[0054] Fig.18 Schematic diagram of the bus bar cutting process of the bus bar cutting mechanism in the embodiment of the present application;

[0055] Fig.19 A schematic diagram of a bus bar cutting process performed by a bus bar cutting mechanism in another embodiment of the present application;

[0056] Figures 1 to 19 Included:

[0057] Die mounting plate 1;

[0058] Convex mold mounting plate 2: mounting chamber 21 and top plate 22;

[0059] Lifting drive mechanism 3;

[0060] Right angle cutting component 4:

[0061] Right-angled die 41: first static cutting edge 411, second static cutting edge 412;

[0062] Right-angle punch 42: first movable cutting edge 421, second movable cutting edge 422;

[0063] Rounded corner cutting component 5

[0064] Corner fillet die 51: third static cutting edge 511, fourth static cutting edge 512;

[0065] Corner fillet punch 52: a third movable cutting blade 521 and a fourth movable cutting blade 522;

[0066] Punching component 6:

[0067] Punching die 61;

[0068] Punching punch 62;

[0069] Busbar guide assembly 7: first guide wheel 71, second guide wheel 72;

[0070] The first mold clamping control mechanism 8:

[0071] The first elastic connection part 81: a first guide rod 811 and a first spring 812;

[0072] The first locking part 82 includes a first linear driving part 821 and a first pressing block 822 ;

[0073] Second mold clamping control mechanism 9:

[0074] The second elastic connection part 91: a second guide rod 911 and a second spring 912;

[0075] The second locking part 92: a second linear driving part 921 and a first pressing block 922;

[0076] The third mold clamping control mechanism 10:

[0077] The third elastic connection part 101: a third guide rod 1011 and a third spring 1012;

[0078] The third locking part 102: a third linear driving part 1021 and a third pressing block 1022;

[0079] Bus bar 100;

[0080] Lifting guide rod 110;

[0081] Pressing block 120: right angle through hole 1201, rounded through hole 1202, circular through hole 1203;

[0082] Elastic buffer assembly 130;

[0083] A hopper 140;

[0084] Mounting bracket 150. DETAILED DESCRIPTION

[0085] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0086] The existing busbar cutting mechanism has a single function and cannot meet the different cutting requirements of the busbar. Therefore, the existing busbar cutting method is to sequentially set up multiple cutting mechanisms with different cutting functions to complete the corresponding cutting operations in sequence. The existing busbar cutting method has low cutting efficiency and high cutting cost.

[0087] In response to the above-mentioned technical problems existing in the existing busbar cutting mechanism, the present application provides a busbar cutting mechanism, which can complete any single operation and any combination operation of right-angle cutting, rounded corner cutting and punching of the busbar, thereby improving the cutting efficiency and reducing the cutting cost.

[0088] like Figures 1 to 16 As shown, the busbar cutting mechanism in the embodiment of the present application includes a die mounting plate 1, a punch mounting plate 2, a lifting drive mechanism 3, a right-angle cutting component 4, a rounded corner cutting component 5 and a punching component 6, wherein:

[0089] The male die mounting plate 2 and the female die mounting plate 1 are arranged vertically, and a conveying space for the busbar 100 to be cut is formed between the male die mounting plate 2 and the female die mounting plate 1. The lifting drive mechanism 3 is connected to the male die mounting plate 2 or the female die mounting plate 1 to drive one of the male die mounting plate 2 and the female die mounting plate 1 to move up and down toward or away from the other. Figure 1In the embodiment, the lifting drive mechanism 3 is drivingly connected to the punch mounting plate 2 , and is used to drive the punch mounting plate 2 to lift or lower toward or away from the die mounting plate 1 .

[0090] The right-angle cutting assembly 4 includes a right-angle die 41 and a right-angle punch 42 , the rounded-corner cutting assembly 5 includes a rounded-corner die 51 and a rounded-corner punch 52 , and the punching assembly 6 includes a punching die 61 and a punch 62 .

[0091] The right-angled die 41, the rounded die 51 and the punching die 61 are arranged on the travel path (eg Figure 1 and Fig.13 They are arranged on the die mounting plate 1 at intervals in the X-axis direction).

[0092] The right-angle punch 42 is mounted on the punch mounting plate 2 through the first mold clamping control mechanism 8 and is vertically opposite to the right-angle die 41. The first mold clamping control mechanism 8 is used to control whether the right-angle punch 42 is clamped with the right-angle die 41 when the punch mounting plate 2 and the die mounting plate 1 are close to each other. When the right-angle punch 42 is clamped with the right-angle die 41, a busbar with a right-angle end is cut out. When the right-angle punch 42 is not clamped with the right-angle die 41, the right-angle cutting assembly 4 does not perform the cutting action.

[0093] The rounded corner convex mold 52 is mounted on the convex mold mounting plate 2 through the second mold clamping control mechanism 9 and is vertically opposite to the rounded corner concave mold 51. The second mold clamping control mechanism 9 is used to control whether the rounded corner convex mold 52 is clamped with the rounded corner concave mold 51 when the convex mold mounting plate 2 and the concave mold mounting plate 1 are close to each other. When the rounded corner convex mold 52 is clamped with the rounded corner concave mold 51, a busbar with a rounded corner end is cut out. When the rounded corner convex mold 52 is not clamped with the rounded corner concave mold 51, the rounded corner cutting assembly 5 does not perform the cutting action.

[0094] The punching punch 62 is mounted on the punch mounting plate 2 through the third mold clamping control mechanism 10 and is vertically aligned with the punching die 61. The third mold clamping control mechanism 10 is used to control whether the punching punch 62 is clamped with the punching die 61 when the punch mounting plate 2 and the die mounting plate 1 are close to each other. When the punching punch 62 is clamped with the punching die 61, the busbar is punched. When the punching punch 62 is not clamped with the punching die 61, the punching assembly 6 does not perform the punching action.

[0095] Since the busbar cutting mechanism in the embodiment of the present application is provided with a right-angle cutting component 4, a rounded corner cutting component 5 and a punching component 6, and the right-angle punch 42 of the right-angle cutting component 4, the rounded corner punch 52 of the rounded corner cutting component 5 and the punching punch 62 of the punching component 6 are respectively installed on the punch mounting plate 2 via the first mold control mechanism 8, the second mold control mechanism 9 and the third mold control mechanism 10, therefore, the busbar cutting mechanism in the embodiment of the present application can complete any single operation and any combination of cutting operations of right-angle cutting, rounded corner cutting and punching of the busbar according to specific cutting requirements.

[0096] For example, when only the busbar needs to be cut at a right angle, when the punch mounting plate 2 and the die mounting plate 1 are close to each other, the following control is implemented: the right-angle punch 42 is controlled to be clamped with the right-angle die 41 by the first clamping control mechanism 8, the rounded corner punch 52 is controlled not to be clamped with the rounded corner die 51 by the second clamping control mechanism 9, and the punching punch 62 is controlled not to be clamped with the punching die 61 by the third clamping control mechanism 10.

[0097] For another example, when only the rounded corners of the busbar need to be cut, when the punch mounting plate 2 and the die mounting plate 1 are close to each other, the following control is implemented: the right-angle punch 42 is controlled by the first mold clamping control mechanism 8 to not be clamped with the right-angle die 41, the rounded corner punch 52 is controlled by the second mold clamping control mechanism 9 to be clamped with the rounded corner die 51, and the punching punch 62 is controlled by the third mold clamping control mechanism 10 to not be clamped with the punching die 61.

[0098] Of course, the busbar cutting mechanism of the embodiment of the present application can also perform two operations at the same time. For example, when it is necessary to perform rounded cutting of the busbar and to form a punching hole at the end of the cut busbar, when the punch mounting plate 2 and the die mounting plate 1 are close to each other, the following control is implemented: the right-angle punch 42 is controlled by the first mold clamping control mechanism 8 not to be clamped with the right-angle die 41, the rounded corner punch 52 is controlled by the second mold clamping control mechanism 9 to be clamped with the rounded corner die 51, and the punching punch 62 is controlled by the third mold clamping control mechanism 10 to be clamped with the punching die 61.

[0099] In other embodiments, the busbar cutting mechanism of the present application may also be provided with only any two of the right-angle cutting component 4, the rounded corner cutting component 5 and the punching component 6. For example, in one embodiment, the busbar cutting mechanism is provided with only the right-angle cutting component 4 and the rounded corner cutting component 5, and correspondingly, the busbar cutting mechanism in this embodiment can cut out busbars with right-angle ends or rounded ends. For another example, in another embodiment, the busbar cutting mechanism is provided with only the rounded corner cutting component 5 and the punching component 6, and correspondingly, the busbar cutting mechanism in this embodiment can cut out busbars with rounded ends or with punching holes and rounded ends. For another example, in yet another embodiment, the busbar cutting mechanism is provided with only the right-angle cutting component 4 and the punching component 6, and correspondingly, the busbar cutting mechanism in this embodiment can cut out busbars with right-angle ends or with punching holes and right-angle ends.

[0100] It can be seen that the busbar cutting mechanism provided by the present application can complete any single operation and any combination of right-angle cutting, rounded corner cutting and punching of the busbar. Compared with the existing cutting method of completing the corresponding cutting operations in sequence through multiple cutting mechanisms, the busbar cutting mechanism of the present application improves the cutting efficiency and reduces the cutting cost.

[0101] Optionally, the right-angle die 41, the rounded corner die 51 and the punching die 61 in the embodiment of the present application can be cavities directly formed on the die mounting plate 1. Of course, the right-angle die 41, the rounded corner die 51 and the punching die 61 can also be a die block with a cavity of a corresponding shape installed on the die mounting plate 1.

[0102] In order to facilitate the installation of the die mounting plate 1, the punch mounting plate 2, the lifting drive mechanism 3, the right-angle cutting component 4, the rounded corner cutting component 5 and the punching component 6, as shown in FIG. Figure 1 As shown, the busbar cutting mechanism in the embodiment of the present application further includes a mounting bracket 150, wherein the lifting drive mechanism 3 is mounted on the top of the mounting bracket 150, the male die mounting plate 2 is connected to the driving end of the lifting drive mechanism 3, the female die mounting plate 1 is fixedly mounted on the mounting bracket 150, and the lifting drive mechanism 3 drives the male die mounting plate 2 to descend to approach the female die mounting plate 1. Of course, in other embodiments, the lifting drive mechanism 3 can also be mounted on the bottom of the mounting bracket 150, the female die mounting plate 1 is connected to the driving end of the lifting drive mechanism 3, the male die mounting plate 2 is fixedly mounted on the mounting bracket 150, and the lifting drive mechanism 3 drives the female die mounting plate 1 to ascend to approach the male die mounting plate 2.

[0103] like Figure 4 , Figure 6 and Fig.11As shown, optionally, the first mold clamping control mechanism 8 includes a first elastic connection portion 81 and a first locking portion 82, and the right-angle punch 42 is connected to the punch mounting plate 2 so as to be movable up and down via the first elastic connection portion 81. The first locking portion 82 is disposed on the punch mounting plate 2, and the first locking portion 82 is used to lock the right-angle punch 42 on the punch mounting plate 2 to prevent the right-angle punch 42 from moving upward, so that the right-angle punch 42 can be clamped with the right-angle die 41. The first locking portion 82 is also used to release the lock on the right-angle punch 42, so that the right-angle punch 42 can move upward when contacting the busbar to be cut, and not be clamped with the right-angle die 41.

[0104] Since the right-angle punch 42 is connected to the punch mounting plate 2 so as to be movably moved up and down via the first elastic connecting portion 81, when the first locking portion 82 locks the right-angle punch 42 on the punch mounting plate 2, the position of the right-angle punch 42 is restricted, so that the right-angle punch 42 can no longer move upward when it is subsequently subjected to the reverse force (upward force) of the busbar. Therefore, when the punch mounting plate 2 and the die mounting plate 1 approach each other, the right-angle punch 42 can further descend after contacting the busbar to be cut until it is engaged with the right-angle die 41, thereby completing the right-angle cutting of the busbar. When the first locking portion 82 releases the lock on the right-angle punch 42, due to the existence of the first elastic connecting portion 81, the right-angle punch 42 can move upward to squeeze the first elastic connecting portion 81 after being subjected to the reverse force of the bus bar, so that the first elastic connecting portion 81 is elastically deformed under pressure. Therefore, when the punch mounting plate 2 and the die mounting plate 1 approach each other, the right-angle punch 42 can move upward after contacting the bus bar to be cut, and thus cannot be molded with the right-angle die 41; when the punch mounting plate 2 and the die mounting plate 1 move away from each other, the first elastic connecting portion 81 rebounds, thereby driving the right-angle punch 42 to move downward back to the initial position, waiting for the next action.

[0105] like Figure 6 As shown, optionally, the first elastic connection part 81 includes a first guide rod 811 and a first spring 812, wherein one end of the first guide rod 811 is fixedly connected to one of the punch mounting plate 2 and the right-angle punch 42, and the other end of the first guide rod 811 is slidably connected to the other of the punch mounting plate 2 and the right-angle punch 42. The first spring 812 is sleeved on the first guide rod 811, the upper end of the first spring 812 abuts on the punch mounting plate 2, and the lower end of the first spring 812 abuts on the right-angle punch 42.

[0106] When the first locking portion 82 locks the right-angle punch 42 on the punch mounting plate 2, the right-angle punch 42 cannot move upward to compress the first spring 812. At this time, when the punch mounting plate 2 and the die mounting plate 1 are close to each other, the right-angle punch 42 can further descend after contacting the busbar to be cut until it is molded with the right-angle die 41, thereby completing the right-angle cutting of the busbar.

[0107] When the first locking portion 82 does not lock the right-angle punch 42 on the punch mounting plate 2, the right-angle punch 42 is no longer restricted in its vertical movement. At this time, when the punch mounting plate 2 and the die mounting plate 1 approach each other, the right-angle punch 42 contacts the bus bar to be cut and is subjected to the reverse force of the bus bar, so that it can move upward and compress the first spring 812, thereby making it impossible to close the mold with the right-angle die 41; when the punch mounting plate 2 and the die mounting plate 1 move away from each other, the first spring 812 rebounds and drives the right-angle punch 42 to move downward back to its initial position, waiting for the next action.

[0108] like Figure 4 , Figure 6 and Fig.11 As shown, the first locking portion 82 includes a first linear drive portion 821 and a first pressing block 822, wherein the first linear drive portion 821 is mounted on the punch mounting plate 2, the first pressing block 822 is connected to the driving end of the first linear drive portion 821, and the first linear drive portion 821 is used to drive the first pressing block 822 to move toward or away from the right-angle punch 42, so that the first pressing block 822 presses against or separates from the upper end surface of the right-angle punch 42. When the first pressing block 822 presses against the upper end surface of the right-angle punch 42, the upward movement of the right-angle punch 42 is restricted, and the right-angle punch 42 is locked on the punch mounting plate 2. When the first pressing block 822 separates from the upper end surface of the right-angle punch 42, the restriction on the upward movement of the right-angle punch 42 is released, so that the right-angle punch 42 can move upward when subjected to an upward force.

[0109] Optionally, the first linear drive unit 821 drives the first pressing block 822 to move in the horizontal direction to drive the first pressing block 822 to press against or separate from the upper end surface of the right-angle punch 42. The first linear drive unit 821 can be, for example, a linear drive such as a cylinder or a linear drive motor.

[0110] like Figure 4 , Figure 5 , Fig.10 and Fig.11 As shown, optionally, the second mold clamping control mechanism 9 includes a second elastic connection portion 91 and a second locking portion 92, and the rounded corner punch 52 is connected to the punch mounting plate 2 so as to be movable up and down via the second elastic connection portion 91. The second locking portion 92 is disposed on the punch mounting plate 2, and the second locking portion 92 is used to lock the rounded corner punch 52 on the punch mounting plate 2 to prevent the rounded corner punch 52 from moving upward, so that the rounded corner punch 52 can be clamped with the rounded corner die 51. The second locking portion 92 is also used to release the lock on the rounded corner punch 52, so that the rounded corner punch 52 can move upward when contacting the busbar to be cut, and not be clamped with the rounded corner die 51.

[0111] Since the rounded corner punch 52 is connected to the punch mounting plate 2 so as to be movably moved up and down via the second elastic connecting portion 91, when the second locking portion 92 locks the rounded corner punch 52 on the punch mounting plate 2, the position of the rounded corner punch 52 is restricted, so that the rounded corner punch 52 can no longer move upward when it is subsequently subjected to the reverse force (upward force) of the busbar. Therefore, when the punch mounting plate 2 and the die mounting plate 1 approach each other, the rounded corner punch 52 can further descend after contacting the busbar to be cut until it is engaged with the rounded corner die 51, thereby completing the rounded corner cutting of the busbar. When the second locking portion 92 releases the lock on the rounded corner punch 52, due to the existence of the second elastic connecting portion 91, the rounded corner punch 52 can move upward to squeeze the second elastic connecting portion 91 after being subjected to the reaction force of the bus bar, so that the second elastic connecting portion 91 is elastically deformed under pressure. Therefore, when the punch mounting plate 2 and the die mounting plate 1 approach each other, the rounded corner punch 52 can move upward after contacting the bus bar to be cut, and thus cannot be molded with the rounded corner die 51; when the punch mounting plate 2 and the die mounting plate 1 move away from each other, the second elastic connecting portion 91 rebounds, thereby driving the rounded corner punch 52 to move downward back to the initial position, waiting for the next action.

[0112] like Figure 5 As shown, optionally, the second elastic connection part 91 includes a second guide rod 911 and a second spring 912, wherein one end of the second guide rod 911 is fixedly connected to one of the punch mounting plate 2 and the rounded corner punch 52, and the other end of the second guide rod 911 is slidably connected to the other of the punch mounting plate 2 and the rounded corner punch 52. The second spring 912 is sleeved on the second guide rod 911, the upper end of the second spring 912 abuts on the punch mounting plate 2, and the lower end of the second spring 912 abuts on the rounded corner punch 52.

[0113] When the second locking portion 92 locks the rounded corner punch 52 on the punch mounting plate 2, the rounded corner punch 52 cannot move upward to compress the second spring 912. At this time, when the punch mounting plate 2 and the die mounting plate 1 are close to each other, the rounded corner punch 52 can further descend after contacting the busbar to be cut until it is molded with the rounded corner die 51, thereby completing the rounded corner cutting of the busbar.

[0114] When the second locking portion 92 does not lock the rounded corner punch 52 on the punch mounting plate 2, the rounded corner punch 52 is no longer restricted in movement in the vertical direction. At this time, when the punch mounting plate 2 and the die mounting plate 1 approach each other, the rounded corner punch 52 contacts the bus bar to be cut and is subjected to the reverse force of the bus bar, so that it can move upward and compress the second spring 912, thereby making it impossible to close the mold with the rounded corner die 51; when the punch mounting plate 2 and the die mounting plate 1 move away from each other, the second spring 912 rebounds and drives the rounded corner punch 52 to move downward back to the initial position, waiting for the next action.

[0115] like Figure 4 , Figure 5 and Fig.11 As shown, optionally, the second locking portion 92 includes a second linear drive portion 921 and a second pressing block 922, wherein the second linear drive portion 921 is mounted on the punch mounting plate 2, the second pressing block 922 is connected to the driving end of the second linear drive portion 921, and the second linear drive portion 921 is used to drive the second pressing block 922 to move toward or away from the rounded corner punch 52, so that the second pressing block 922 presses against or disengages from the upper end surface of the rounded corner punch 52. When the second pressing block 922 presses against the upper end surface of the rounded corner punch 52, the upward movement of the rounded corner punch 52 is restricted, and the rounded corner punch 52 is locked on the punch mounting plate 2. When the second pressing block 922 disengages from the upper end surface of the rounded corner punch 52, the restriction on the upward movement of the rounded corner punch 52 is released, so that the rounded corner punch 52 can move upward when subjected to an upward force.

[0116] Optionally, the second linear drive unit 921 drives the second pressing block 922 to move in the horizontal direction to drive the second pressing block 922 to press against or disengage from the upper end surface of the rounded corner punch 52. The second linear drive unit 921 can be, for example, a linear drive such as a cylinder or a linear drive motor.

[0117] like Figure 4 , Figure 7 , Figure 8 and Fig.11 As shown, optionally, the third mold clamping control mechanism 10 includes a third elastic connection portion 101 and a third locking portion 102, and the punching punch 62 is connected to the punch mounting plate 2 so as to be movable up and down via the third elastic connection portion 101. The third locking portion 102 is disposed on the punch mounting plate 2, and the third locking portion 102 is used to lock the punching punch 62 on the punch mounting plate 2 to prevent the punching punch 62 from moving upward, so that the punching punch 62 can be clamped with the punching die 61. The third locking portion 102 is also used to release the lock on the punching punch 62, so that the punching punch 62 can move upward when contacting the busbar to be cut, and not be clamped with the punching die 61.

[0118] Since the punching punch 62 is connected to the punch mounting plate 2 so as to be movably moved up and down via the third elastic connecting portion 101, when the third locking portion 102 locks the punching punch 62 on the punch mounting plate 2, the position of the punching punch 62 is restricted, so that the punching punch 62 can no longer move upward when it is subsequently subjected to the reverse force (upward force) of the busbar. Therefore, when the punch mounting plate 2 and the die mounting plate 1 approach each other, the punching punch 62 can further descend after contacting the busbar to be cut until it is engaged with the punching die 61, thereby completing the punching of the busbar. When the third locking portion 102 releases the lock on the punching punch 62, due to the existence of the third elastic connecting portion 101, the punching punch 62 can move upward to squeeze the third elastic connecting portion 101 after being subjected to the reverse force of the bus bar, so that the third elastic connecting portion 101 is elastically deformed under pressure. Therefore, when the punch mounting plate 2 and the die mounting plate 1 approach each other, the punching punch 62 can move upward after contacting the bus bar to be cut, and thus cannot be molded with the punching die 61; when the punch mounting plate 2 and the die mounting plate 1 move away from each other, the third elastic connecting portion 101 rebounds, thereby driving the punching punch 62 to move downward back to the initial position, waiting for the next action.

[0119] like Fig.10 As shown, optionally, the third elastic connection part 101 includes a third guide rod 1011 and a third spring 1012, wherein one end of the third guide rod 1011 is fixedly connected to one of the punch mounting plate 2 and the punching punch 62, and the other end of the third guide rod 1011 is slidably connected to the other of the punch mounting plate 2 and the punching punch 62. The third spring 1012 is sleeved on the third guide rod 1011, the upper end of the third spring 1012 abuts against the punch mounting plate 2, and the lower end of the third spring 1012 abuts against the punching punch 62.

[0120] When the third locking portion 102 locks the punching punch 62 on the punch mounting plate 2, the punching punch 62 cannot move upward to compress the third spring 1012. At this time, when the punch mounting plate 2 and the die mounting plate 1 are close to each other, the punching punch 62 can further descend after contacting the busbar to be cut until it is molded with the punching die 61, thereby completing the punching operation of the busbar.

[0121] When the third locking portion 102 does not lock the punching punch 62 on the punch mounting plate 2, the punching punch 62 is no longer restricted in movement in the vertical direction. At this time, when the punch mounting plate 2 and the die mounting plate 1 approach each other, the punching punch 62 contacts the bus bar to be cut and is subjected to the reverse force of the bus bar, so that it can move upward and compress the third spring 1012, thereby making it impossible to close the mold with the punching die 61; when the punch mounting plate 2 and the die mounting plate 1 move away from each other, the third spring 1012 rebounds and drives the punching punch 62 to move downward back to the initial position, waiting for the next action.

[0122] Optionally, the third locking portion 102 includes a third linear drive portion 1021 and a third pressing block 1022, wherein the third linear drive portion 1021 is mounted on the punch mounting plate 2, the third pressing block 1022 is connected to the driving end of the third linear drive portion 1021, and the third linear drive portion 1021 is used to drive the third pressing block 1022 to move toward or away from the punching punch 62, so that the third pressing block 1022 presses against or separates from the upper end surface of the punching punch 62. When the third pressing block 1022 presses against the upper end surface of the punching punch 62, the upward movement of the punching punch 62 is restricted, and the punching punch 62 is locked on the punch mounting plate 2. When the third pressing block 1022 separates from the upper end surface of the punching punch 62, the restriction on the upward movement of the punching punch 62 is released, so that the punching punch 62 can move upward when subjected to an upward force.

[0123] Optionally, the third linear drive unit 1021 drives the third pressing block 1022 to move in the horizontal direction to drive the third pressing block 1022 to press against or separate from the upper end surface of the punching punch 62. The third linear drive unit 1021 can be, for example, a linear drive such as a cylinder or a linear drive motor.

[0124] In order to facilitate the installation of the right-angle punch 42, the rounded corner punch 52 and the punching punch 62, the punch mounting plate 2 in the embodiment of the present application may include a mounting chamber 21 and a top plate 22 (such as Figures 4 to 11 As shown in the figure, the top plate 22 is covered and installed on the top of the installation chamber 21, the right-angle punch 42, the rounded corner punch 52 and the punching punch 62 are all located in the installation chamber 21 and their lower ends respectively pass through the bottom of the installation chamber 21, the right-angle punch 42 and the top plate 22 are connected by a first elastic connecting portion 81, the rounded corner punch 52 and the top plate 22 are connected by a second elastic connecting portion 91, and the punching punch 62 and the top plate 22 are connected by a third elastic connecting portion 101.

[0125] like Fig.13 As shown, optionally, a straight first static cutting edge 411 is provided on the first side wall of the right-angled die 41, and a straight second static cutting edge 412 is provided on the second side wall of the right-angled die 41. Fig.15 As shown, the opposite sides of the lower end of the right-angle punch 42 are respectively provided with a straight first dynamic cutting edge 421 and a second dynamic cutting edge 422. When the right-angle punch 42 is molded with the right-angle die 41, the first static cutting edge 411 and the first dynamic cutting edge 421 cooperate to cut the bus bar from the first position, and the second static cutting edge 412 and the second dynamic cutting edge 422 cooperate to cut the bus bar from the second position.

[0126] By setting the right-angle punch 42 and the right-angle die 41, when the right-angle punch 42 and the right-angle die 41 are combined, the busbars with right-angle ends can be automatically cut out, and two busbars with right-angle ends can be obtained at the same time through one cutting, thereby improving the cutting efficiency.

[0127] like Fig.13 As shown, optionally, a third static cutting edge 511 protruding into the rounded corner die is provided on the first side wall of the rounded corner die 51, and a fourth static cutting edge 512 protruding into the rounded corner die is provided on the second side wall of the rounded corner die 51. Fig.14 As shown, correspondingly, the opposite side walls of the lower end of the rounded corner punch 52 are respectively provided with a third movable cutting edge 521 and a fourth movable cutting edge 522 in an inwardly concave arc shape, the third movable cutting edge 521 matches the third static cutting edge 511, and the fourth movable cutting edge 522 matches the fourth static cutting edge 512. When the lower end of the rounded corner punch 52 is molded with the rounded corner die 51, the third static cutting edge 511 and the third movable cutting edge 521 cooperate to cut the bus bar from the third position, and the fourth static cutting edge 512 and the fourth movable cutting edge 522 cooperate to cut the bus bar from the fourth position.

[0128] By setting the rounded corner punch 52 and the rounded corner die 51, when the rounded corner punch 52 and the rounded corner die 51 are combined, the busbars with rounded ends can be automatically cut out, and two busbars with rounded ends can be obtained at the same time through one cutting, thereby improving the cutting efficiency.

[0129] Optionally, the busbar cutting mechanism in the embodiment of the present application includes two punching components 6, namely a first punching component and a second punching component. Fig.13 As shown, the punching die 61 of the first punching assembly and the punching die 61 of the second punching assembly are arranged at intervals on the travel path of the busbar to be cut (such as the X-axis direction in the figure), and are respectively arranged on both sides of the rounded corner die 51, so that when the first punching assembly, the second punching assembly and the rounded corner cutting assembly 5 are controlled to perform the cutting action at the same time, two busbars with rounded ends and punched holes can be obtained at the same time through one cutting. Of course, in other embodiments, the punching die 61 of the first punching assembly and the punching die 61 of the second punching assembly can also be respectively arranged on both sides of the right-angle die 41, so that when the first punching assembly, the second punching assembly and the right-angle cutting assembly 4 are controlled to perform the cutting action at the same time, two busbars with right-angle ends and punched holes can be obtained at the same time through one cutting.

[0130] Since the punching assembly 6 is provided in two groups, correspondingly, Figure 2 and Figure 4As shown, the busbar cutting mechanism in the embodiment of the present application is also correspondingly provided with two groups of third mold control mechanisms 10, wherein one group of third mold control mechanisms 10 is used to lock and unlock the punching punch 62 in the first punching assembly 6, and the other group of third mold control mechanisms 10 is used to lock and unlock the punching punch 62 in the second punching assembly 6.

[0131] The busbar cutting mechanism in the embodiment of the present application is particularly suitable for preparing the middle busbar of a battery string assembly with three outlets. Fig.17 As shown in FIG. 1 , a three-line battery string assembly consisting of 12 half-cell battery strings 200 is used as an example. The middle busbars of the battery string assembly include an L-shaped busbar 100A, a U-shaped busbar 100B, a U-shaped busbar 100C, and an L-shaped busbar 100D in sequence.

[0132] like Fig.18 As shown, in some application examples, both ends of L-shaped busbar 100A and L-shaped busbar 100D are right-angled, and one end has a punching hole. Both ends of U-shaped busbar 100B and U-shaped busbar 100C are right-angled, and both ends have a punching hole.

[0133] The busbar cutting mechanism in the embodiment of the present application can realize continuous cutting and forming of the above-mentioned four middle busbars. In this embodiment, the punching die 61 of the first punching assembly and the punching die 61 of the second punching assembly are respectively arranged on both sides of the right-angle die 41.

[0134] The specific process of cutting is as follows:

[0135] First cut:

[0136] The first locking portion 82 is controlled to lock the right-angle punch 42 on the punch mounting plate 2 , the second locking portion 92 is controlled to unlock the rounded corner punch 52 , and the two third locking portions 102 are controlled to unlock the punching punch 62 .

[0137] Control the busbar to be cut along a predetermined path (such as Fig.18 The busbar to be cut is moved in the X-axis direction (in the X-axis direction), and when the end of the busbar to be cut passes through the conveying space between the male die mounting plate 2 and the female die mounting plate 1, the busbar to be cut is controlled to stop moving.

[0138] The punch mounting plate 2 and the die mounting plate 1 are controlled to approach each other by the lifting drive mechanism 3, so that the right-angle punch 42 and the right-angle die 41 are molded together, thereby cutting the end of the busbar to be cut into a right angle.

[0139] After the cutting is completed, the male die mounting plate 2 and the female die mounting plate 1 are controlled by the lifting drive mechanism 3 to move away from each other and reset.

[0140] Second cut:

[0141] The first locking part 82 is controlled to keep locking the right-angle punch 42 on the punch mounting plate 2, the second locking part 92 is controlled to keep unlocking the rounded corner punch 52, and the two third locking parts 102 are controlled to respectively lock the corresponding punching punches 62 on the punch mounting plate 2.

[0142] The busbar to be cut is controlled to continue to move along a predetermined travel path. When the busbar to be cut of a predetermined length passes through the conveying space between the male die mounting plate 2 and the female die mounting plate 1, the busbar to be cut is controlled to stop moving.

[0143] The punch mounting plate 2 and the die mounting plate 1 are controlled to approach each other through the lifting drive mechanism 3, so that the right-angle punch 42 and the right-angle die 41 are molded together, and synchronously, the two punching punches 62 are molded together with the corresponding two punching dies 61, so as to obtain an L-shaped busbar 100A with right angles at both ends and a punched hole at one end. In addition, the new end of the busbar to be cut is also cut into a right angle with a punched hole.

[0144] After the cutting is completed, the male die mounting plate 2 and the female die mounting plate 1 are controlled by the lifting drive mechanism 3 to move away from each other and reset.

[0145] Third cut:

[0146] The first locking portion 82 is controlled to keep the right-angle punch 42 locked on the punch mounting plate 2 , the second locking portion 92 is controlled to keep the rounded corner punch 52 unlocked, and the two third locking portions 102 are controlled to keep the corresponding punching punches 62 locked on the punch mounting plate 2 .

[0147] The busbar to be cut is controlled to continue to move along a predetermined travel path. When the busbar to be cut of a predetermined length passes through the conveying space between the male die mounting plate 2 and the female die mounting plate 1, the busbar to be cut is controlled to stop moving.

[0148] The punch mounting plate 2 and the die mounting plate 1 are controlled to approach each other through the lifting drive mechanism 3, so that the right-angle punch 42 and the right-angle die 41 are molded together, and synchronously, the two punching punches 62 are molded together with the corresponding two punching dies 61, so as to obtain a U-shaped busbar 100B with right angles at both ends and punched holes at both ends. In addition, the new end of the busbar to be cut is also cut into a right angle with punched holes.

[0149] After the cutting is completed, the male die mounting plate 2 and the female die mounting plate 1 are controlled by the lifting drive mechanism 3 to move away from each other and reset.

[0150] Fourth cut:

[0151] The first locking portion 82 is controlled to keep the right-angle punch 42 locked on the punch mounting plate 2 , the second locking portion 92 is controlled to keep the rounded corner punch 52 unlocked, and the two third locking portions 102 are controlled to keep the corresponding punching punches 62 locked on the punch mounting plate 2 .

[0152] The busbar to be cut is controlled to continue to move along a predetermined travel path. When the busbar to be cut of a predetermined length passes through the conveying space between the male die mounting plate 2 and the female die mounting plate 1, the busbar to be cut is controlled to stop moving.

[0153] The punch mounting plate 2 and the die mounting plate 1 are controlled to approach each other through the lifting drive mechanism 3, so that the right-angle punch 42 and the right-angle die 41 are molded together, and synchronously, the two punching punches 62 are molded together with the corresponding two punching dies 61, so as to obtain a U-shaped busbar 100C with right angles at both ends and punched holes. In addition, the new end of the busbar to be cut is also cut into a right angle with punched holes.

[0154] After the cutting is completed, the male die mounting plate 2 and the female die mounting plate 1 are controlled by the lifting drive mechanism 3 to move away from each other and reset.

[0155] Fifth cut:

[0156] The first locking portion 82 is controlled to keep the right-angle punch 42 locked on the punch mounting plate 2, the second locking portion 92 is controlled to keep the rounded corner punch 52 unlocked, and the two third locking portions 102 are controlled to respectively unlock the corresponding punching punches 62.

[0157] The movement of the busbar to be cut is controlled so that the busbar to be cut of a predetermined length passes through the conveying space between the male die mounting plate 2 and the female die mounting plate 1, and the pulling of the busbar to be cut is stopped.

[0158] The punch mounting plate 2 and the die mounting plate 1 are controlled to approach each other by the lifting drive mechanism 3, so that the right-angle punch 42 and the right-angle die 41 are molded together, thereby obtaining an L-shaped busbar 100D with right angles at both ends and a punched hole at one end.

[0159] like Fig.19 As shown, in some application examples, one end of the L-shaped busbar 100A and the L-shaped busbar 100D is a right angle, and the other end is rounded, and the rounded end has a punching hole. Both ends of the U-shaped busbar 100B and the U-shaped busbar 100C are rounded, and both ends have punching holes.

[0160] The busbar cutting mechanism in the embodiment of the present application can realize continuous cutting and forming of the above-mentioned four middle busbars. In this embodiment, the punching die 61 of the first punching assembly and the punching die 61 of the second punching assembly are respectively arranged on both sides of the rounded corner die 51.

[0161] The specific process is as follows:

[0162] First cut:

[0163] The first locking portion 82 is controlled to lock the right-angle punch 42 on the punch mounting plate 2 , the second locking portion 92 is controlled to unlock the rounded corner punch 52 , and the two third locking portions 102 are controlled to respectively unlock the punching punches 62 .

[0164] Control the busbar to be cut along a predetermined path (such as Fig.19 The busbar to be cut is moved in the X-axis direction) and when the end of the busbar to be cut passes through the conveying space between the male die mounting plate 2 and the female die mounting plate 1, the busbar to be cut is controlled to stop moving.

[0165] The punch mounting plate 2 and the die mounting plate 1 are controlled to approach each other by the lifting drive mechanism 3, so that the right-angle punch 42 and the right-angle die 41 are molded together, thereby cutting the end of the busbar to be cut into a right angle.

[0166] After the cutting is completed, the male die mounting plate 2 and the female die mounting plate 1 are controlled by the lifting drive mechanism 3 to move away from each other and reset.

[0167] Second cut:

[0168] The first locking portion 82 is controlled to unlock the right-angle punch 42 , the second locking portion 92 is controlled to lock the rounded corner punch 52 on the punch mounting plate 2 , and the two third locking portions 102 are controlled to lock the corresponding punching punches 62 on the punch mounting plate 2 .

[0169] The busbar to be cut is controlled to move along a predetermined travel path. When the busbar to be cut of a predetermined length passes through the conveying space between the male die mounting plate 2 and the female die mounting plate 1, the busbar to be cut is controlled to stop moving.

[0170] The punch mounting plate 2 and the die mounting plate 1 are controlled by the lifting drive mechanism 3 to approach each other, so that the rounded corner punch 52 is molded with the rounded corner die 51, and synchronously, the two punching punches 62 are molded with the corresponding two punching dies 61, so as to obtain an L-shaped busbar 100A with a right angle at one end and a rounded corner at the other end and a punched hole at the rounded end. In addition, the new end of the busbar to be cut is also cut into a rounded shape with a punched hole.

[0171] After the cutting is completed, the male die mounting plate 2 and the female die mounting plate 1 are controlled by the lifting drive mechanism 3 to move away from each other and reset.

[0172] Third cut:

[0173] The first locking part 82 is controlled to keep unlocking the right-angle punch 42 , the second locking part 92 is controlled to keep locking the rounded corner punch 52 on the punch mounting plate 2 , and the two third locking parts 102 are controlled to keep locking the corresponding punching punches 62 on the punch mounting plate 2 .

[0174] The busbar to be cut is controlled to move along a predetermined travel path. When the busbar to be cut of a predetermined length passes through the conveying space between the male die mounting plate 2 and the female die mounting plate 1, the busbar to be cut is controlled to stop moving.

[0175] The punch mounting plate 2 and the die mounting plate 1 are controlled to approach each other through the lifting drive mechanism 3, so that the rounded corner punch 52 is molded with the rounded corner die 51, and synchronously, the two punching punches 62 are molded with the corresponding two punching dies 61, so as to obtain a U-shaped busbar 100B with rounded corners at both ends and punched holes at both ends. In addition, the new end of the busbar to be cut is also cut into a rounded shape with punched holes.

[0176] After the cutting is completed, the male die mounting plate 2 and the female die mounting plate 1 are controlled by the lifting drive mechanism 3 to move away from each other and reset.

[0177] Fourth cut:

[0178] The first locking part 82 is controlled to keep unlocking the right-angle punch 42 , the second locking part 92 is controlled to keep locking the rounded corner punch 52 on the punch mounting plate 2 , and the two third locking parts 102 are controlled to keep locking the corresponding punching punches 62 on the punch mounting plate 2 .

[0179] The busbar to be cut is controlled to move along a predetermined travel path. When the busbar to be cut of a predetermined length passes through the conveying space between the male die mounting plate 2 and the female die mounting plate 1, the busbar to be cut is controlled to stop moving.

[0180] The punch mounting plate 2 and the die mounting plate 1 are controlled to approach each other through the lifting drive mechanism 3, so that the rounded corner punch 52 is molded with the rounded corner die 51, and synchronously, the two punching punches 62 are molded with the corresponding two punching dies 61, so as to obtain a U-shaped busbar 100C with rounded corners at both ends and punched holes at both ends. In addition, the new end of the busbar to be cut is also cut into a rounded shape with punched holes.

[0181] After the cutting is completed, the male die mounting plate 2 and the female die mounting plate 1 are controlled by the lifting drive mechanism 3 to move away from each other and reset.

[0182] Fifth cut:

[0183] The first locking portion 82 is controlled to lock the right-angle punch 42 on the punch mounting plate 2 , the second locking portion 92 is controlled to unlock the rounded corner punch 52 , and the two third locking portions 102 are controlled to respectively unlock the corresponding punching punches 62 .

[0184] The busbar to be cut is controlled to move along a predetermined travel path. When the busbar to be cut of a predetermined length passes through the conveying space between the male die mounting plate 2 and the female die mounting plate 1, the busbar to be cut is controlled to stop moving.

[0185] The punch mounting plate 2 and the die mounting plate 1 are controlled to approach each other by the lifting drive mechanism 3, so that the right-angle punch 42 and the right-angle die 41 are molded together, thereby obtaining an L-shaped busbar 100D with one end being a right angle and the other end being a rounded corner with a punched hole.

[0186] Of course, the busbar cutting mechanism in the embodiment of the present application can also be used to cut and prepare the straight busbars at both ends of the battery string assembly.

[0187] like Figure 3 As shown, optionally, the busbar cutting mechanism in the embodiment of the present application includes a lifting guide rod 110, wherein: the lifting guide rod 110 is arranged in the vertical direction, one end of the lifting guide rod 110 is fixedly connected to one of the die mounting plate 1 and the punch mounting plate 2, and the other end of the lifting guide rod 110 is slidably connected to the other of the die mounting plate 1 and the punch mounting plate 2.

[0188] By setting the lifting guide rod 110, the lifting and guiding of the die mounting plate 1 or the punch mounting plate 2 is achieved, thereby ensuring that the right-angle punch 42 and the right-angle die 41, the rounded corner punch 52 and the rounded corner die 51, and the punching punch 62 and the punching die 61 can all be accurately molded.

[0189] like Figure 1 , Figure 3 , Figures 4 to 8 As shown, optionally, the busbar cutting mechanism in the embodiment of the present application further includes a press block 120 and an elastic buffer assembly 130, wherein: the press block 120 is connected to the male die mounting plate 2 via the elastic buffer assembly 130 and is located below the male die mounting plate 2. When the lifting drive mechanism 3 drives the male die mounting plate 2 to approach the female die mounting plate 1, the press block 120 elastically presses the busbar against the female die mounting plate 1.

[0190] When the lifting drive mechanism 3 drives the punch mounting plate 2 and the die mounting plate 1 to move closer, the pressing block 120 first elastically presses the busbar against the upper end surface of the die mounting plate 1, and then the right-angle punch 42, the rounded corner punch 52 or the punching punch 62 is combined with the corresponding right-angle die 41, the rounded corner die 51 or the punching die 61 to cut or punch the busbar. In this way, the cut end of the busbar can be effectively prevented from warping up during cutting.

[0191] Optionally, the elastic buffer assembly 130 includes a fourth guide rod and a fourth spring, wherein: the lower end of the fourth guide rod is fixedly connected to the pressing block 120, and the upper end of the fourth guide rod is slidably connected to the punch mounting plate 2. The fourth spring is sleeved on the fourth guide rod, wherein the lower end of the fourth spring abuts against the pressing block 120, and the upper end of the fourth spring abuts against the punch mounting plate 2.

[0192] By configuring the elastic buffer assembly 130 to include a fourth guide rod and a fourth spring, after the pressing block 120 presses the busbar, as the punch mounting plate 2 and the die mounting plate 1 continue to approach each other, the pressing block 120 can move upward to compress the fourth spring, thereby achieving elastic compression of the busbar.

[0193] Of course, in order to achieve the avoidance of the right-angle punch 42, the rounded corner punch 52 and the punching punch 62, as shown in FIG. Fig.12 As shown, the pressing block 120 is also provided with a right-angle through hole 1201 for the right-angle punch 42 to pass through, a rounded through hole 1202 for the rounded punch 52 to pass through, and a circular through hole 1203 for the punching punch 62 to pass through.

[0194] Optionally, the die mounting plate 1 is further provided with a first blanking hole connected to the right-angle die 41, a second blanking hole connected to the rounded die 51, and a third blanking hole connected to the punching die 61. Figure 1 As shown, the die mounting plate 1 is also provided with a hopper 140 for receiving waste materials dropped from the first drop hole, the second drop hole and the third drop hole.

[0195] By setting a first blanking hole below the right-angle die 41, the waste material cut off by the right-angle punch 42 and the right-angle die 41 falls into the first blanking hole, thereby preventing the right-angle die 41 from being occupied by waste material and affecting the next cutting. Similarly, by setting a second blanking hole below the rounded corner die 51, the waste material cut off by the rounded corner punch 52 and the rounded corner die 51 falls into the second blanking hole, thereby preventing the rounded corner die 51 from being occupied by waste material and affecting the next cutting. Similarly, by setting a third blanking hole below the punching die 61, the waste material cut off by the punching punch 62 and the punching die 61 falls into the third blanking hole, thereby preventing the punching die 61 from being occupied by waste material and affecting the next cutting.

[0196] By providing the hopper 140 , the waste materials dropped from the first drop hole, the second drop hole and the third drop hole can be collected.

[0197] like Figure 1 and Fig.13As shown, optionally, the busbar cutting mechanism in the embodiment of the present application further includes a busbar guide assembly 7, which is arranged on one side of the die mounting plate 1 or symmetrically arranged on both sides of the die mounting plate 1. The busbar guide assembly includes a first guide wheel 71 and a second guide wheel 72 arranged side by side, and a guide gap is formed between the first guide wheel 71 and the second guide wheel 72 for the busbar to be cut to pass through.

[0198] Optionally, in order to adapt to guiding busbars of different widths, the installation distance between the first guide wheel 71 and the second guide wheel 72 is adjustable.

[0199] By providing the busbar guide assembly 7, the busbar can be guided to ensure that the busbar can pass over the right-angle die 41, the rounded corner die 51 and the punching die 61 according to a predetermined travel path.

[0200] An embodiment of the present application also provides a busbar preparation device, which includes a feeding mechanism, a clamping mechanism, a traction mechanism and the busbar cutting mechanism described in any one of the above items, wherein: the feeding mechanism is used to feed out the busbar; the traction mechanism is used to pull the busbar fed out by the feeding mechanism so that the busbar passes through the clamping mechanism and the busbar cutting mechanism in sequence; the clamping mechanism is used to clamp the busbar, and the busbar cutting mechanism is used to cut the clamped busbar to obtain a busbar segment with a predetermined length, and the cut busbar segment has at least one of a right-angle end and a rounded end.

[0201] Through the cooperation of the unloading mechanism, the pressing mechanism, the busbar cutting mechanism and the pulling mechanism, the busbar preparation device realizes the automatic preparation of the busbar segment having at least a right-angle end and a rounded end.

[0202] The present application is described in sufficient detail above with certain particularity. It should be understood by those skilled in the art that the description in the embodiments is merely exemplary, and all changes made without departing from the true spirit and scope of the present application should fall within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, rather than by the above description in the embodiments.

Claims

1. A busbar cutting mechanism, characterized in that: The busbar cutting mechanism comprises a die mounting plate, a punch mounting plate, a lifting drive mechanism, and at least two of a right-angle cutting assembly, a rounded-angle cutting assembly, and a punching assembly, wherein: The male die mounting plate and the female die mounting plate are arranged up and down, and a conveying space for the busbar to be cut to pass through is formed between the male die mounting plate and the female die mounting plate; the lifting drive mechanism is drivingly connected to the male die mounting plate or the female die mounting plate, and is used to drive one of the male die mounting plate and the female die mounting plate to lift or lower toward or away from the other; The right-angle cutting assembly includes a right-angle die and a right-angle punch, the rounded-corner cutting assembly includes a rounded-corner die and a rounded-corner punch, and the punching assembly includes a punching die and a punch; The right-angle die, the rounded-corner die and the punching die are arranged on the die mounting plate at intervals on the travel path of the busbar to be cut; The right-angle punch is installed on the punch mounting plate through a first mold clamping control mechanism and is vertically opposite to the right-angle die. The first mold clamping control mechanism is used to control whether the right-angle punch is clamped with the right-angle die when the punch mounting plate and the die mounting plate are close to each other; when the right-angle punch is clamped with the right-angle die, a busbar with a right-angle end is cut out; when the right-angle punch is not clamped with the right-angle die, the right-angle cutting assembly does not perform a cutting action; The rounded corner punch is installed on the punch mounting plate through a second mold clamping control mechanism and is vertically opposite to the rounded corner die. The second mold clamping control mechanism is used to control whether the rounded corner punch is clamped with the rounded corner die when the punch mounting plate and the die mounting plate are close to each other; when the rounded corner punch is clamped with the rounded corner die, a busbar with a rounded corner end is cut out, and when the rounded corner punch is not clamped with the rounded corner die, the rounded corner cutting assembly does not perform a cutting action; The punching punch is mounted on the punch mounting plate through a third mold clamping control mechanism and is vertically opposite to the punching die. The third mold clamping control mechanism is used to control whether the punching punch is clamped with the punching die when the punch mounting plate and the die mounting plate are close to each other. When the punching punch is clamped with the punching die, the busbar is punched. When the punching punch is not clamped with the punching die, the punching assembly does not perform the punching action.

2. The busbar cutting mechanism according to claim 1, wherein: The first mold clamping control mechanism includes a first elastic connection part and a first locking part, and the right-angle punch is connected to the punch mounting plate movably up and down via the first elastic connection part; the first locking part is arranged on the punch mounting plate, and the first locking part is used to lock the right-angle punch on the punch mounting plate to prevent the right-angle punch from moving upward, so that the right-angle punch can be clamped with the right-angle die; The first locking portion is also used to unlock the right-angle punch, so that the right-angle punch can move upward when contacting the busbar to be cut, and does not engage with the right-angle die; The second mold clamping control mechanism includes a second elastic connection part and a second locking part, the rounded corner punch is connected to the punch mounting plate movably up and down via the second elastic connection part; the second locking part is arranged on the punch mounting plate, and the second locking part is used to lock the rounded corner punch on the punch mounting plate to prevent the rounded corner punch from moving upward, so that the rounded corner punch can be clamped with the rounded corner concave mold; The second locking portion is also used to unlock the rounded corner punch, so that the rounded corner punch can move upward when contacting the busbar to be cut, and does not engage with the rounded corner die; The third mold clamping control mechanism includes a third elastic connection part and a third locking part, and the punching punch is connected to the punch mounting plate movably up and down via the third elastic connection part; the third locking part is arranged on the punch mounting plate, and the third locking part is used to lock the punching punch on the punch mounting plate to prevent the punching punch from moving upward, so that the punching punch can be clamped with the punching die; The third locking portion is further used to release the lock on the punching punch, so that the punching punch can move upward when contacting the busbar to be cut, without being engaged with the punching die.

3. The busbar cutting mechanism according to claim 1, wherein: A straight first static cutting edge is provided on the first side wall of the right-angled die, and a straight second static cutting edge is provided on the second side wall of the right-angled die; a straight first dynamic cutting edge and a straight second dynamic cutting edge are provided on opposite sides of the lower end of the right-angled punch, respectively; When the right-angle punch and the right-angle die are clamped, the first static cutting blade and the first dynamic cutting blade cooperate to cut the bus bar from a first position, and the second static cutting blade and the second dynamic cutting blade cooperate to cut the bus bar from a second position.

4. The busbar cutting mechanism according to claim 1, wherein: A third static cutting blade protruding from the first side wall of the rounded corner die is provided, and a fourth static cutting blade protruding from the second side wall of the rounded corner die is provided; a third dynamic cutting blade and a fourth dynamic cutting blade concave from the second side wall of the rounded corner die are provided respectively, and the third dynamic cutting blade matches the third static cutting blade, and the fourth dynamic cutting blade matches the fourth static cutting blade; When the lower end of the rounded corner punch is molded with the rounded corner die, the third static cutting blade and the third dynamic cutting blade cooperate to cut the bus bar from the third position, and the fourth static cutting blade and the fourth dynamic cutting blade cooperate to cut the bus bar from the fourth position.

5. The busbar cutting mechanism according to claim 1, wherein: There are two punching assemblies, namely a first punching assembly and a second punching assembly. The punching die of the first punching assembly and the punching die of the second punching assembly are arranged at intervals on the travel path of the busbar to be cut, and are respectively arranged on both sides of the right-angle die or the rounded-angle die.

6. The busbar cutting mechanism according to claim 1, wherein: The busbar cutting mechanism comprises a lifting guide rod, wherein: The lifting guide rod is arranged in the vertical direction, one end of the lifting guide rod is fixedly connected to one of the die mounting plate and the punch mounting plate, and the other end of the lifting guide rod is slidably connected to the other of the die mounting plate and the punch mounting plate.

7. The busbar cutting mechanism according to claim 2, wherein: The first elastic connection portion includes a first guide rod and a first spring, wherein one end of the first guide rod is fixedly connected to one of the punch mounting plate and the right-angle punch, and the other end of the first guide rod is slidably connected to the other of the punch mounting plate and the right-angle punch; the first spring is sleeved on the first guide rod, the upper end of the first spring abuts against the punch mounting plate, and the lower end of the first spring abuts against the right-angle punch; The second elastic connection portion includes a second guide rod and a second spring, wherein one end of the second guide rod is fixedly connected to one of the punch mounting plate and the rounded corner punch, and the other end of the second guide rod is slidably connected to the other of the punch mounting plate and the rounded corner punch; the second spring is sleeved on the second guide rod, the upper end of the second spring abuts against the punch mounting plate, and the lower end of the second spring abuts against the rounded corner punch; The third elastic connecting part includes a third guide rod and a third spring, wherein one end of the third guide rod is fixedly connected to one of the punch mounting plate and the punching punch, and the other end of the third guide rod is slidably connected to the other of the punch mounting plate and the punching punch; the third spring is sleeved on the third guide rod, the upper end of the third spring abuts against the punch mounting plate, and the lower end of the third spring abuts against the punching punch.

8. The busbar cutting mechanism according to claim 2, wherein: The first locking portion includes a first linear driving portion and a first pressing block, wherein the first linear driving portion is mounted on the punch mounting plate, the first pressing block is connected to the driving end of the first linear driving portion, and the first linear driving portion is used to drive the first pressing block to move toward or away from the right-angle punch, so that the first pressing block presses against or separates from the upper end surface of the right-angle punch; The second locking portion includes a second linear driving portion and a second pressing block, wherein the second linear driving portion is mounted on the punch mounting plate, the second pressing block is connected to the driving end of the second linear driving portion, and the second linear driving portion is used to drive the second pressing block to move toward or away from the rounded corner punch, so that the second pressing block presses against or separates from the upper end surface of the rounded corner punch; The third locking part includes a third linear drive part and a third pressure block, wherein the third linear drive part is mounted on the punch mounting plate, and the third pressure block is connected to the driving end of the third linear drive part, and the third linear drive part is used to drive the third pressure block to move toward or away from the punching punch, so that the third pressure block presses against or disengages from the upper end surface of the punching punch.

9. The busbar cutting mechanism according to claim 1, wherein: The busbar cutting mechanism further comprises a material pressing block and an elastic buffer component, wherein: The pressing block is connected to the punch mounting plate via the elastic buffer assembly and is located below the punch mounting plate; When the lifting drive mechanism drives the male die mounting plate and the female die mounting plate to approach each other, the pressing block elastically presses the busbar onto the female die mounting plate.

10. The busbar cutting mechanism according to claim 9, wherein: The elastic buffer assembly includes a fourth guide rod and a fourth spring, wherein: The lower end of the fourth guide rod is fixedly connected to the press block, and the upper end of the fourth guide rod is slidably connected to the male die mounting plate; The fourth spring is sleeved on the fourth guide rod, wherein the lower end of the fourth spring abuts against the pressing block, and the upper end of the fourth spring abuts against the punch mounting plate.

11. The busbar cutting mechanism according to claim 1, wherein: The die mounting plate is also provided with a first blanking hole connected to the right-angle die, a second blanking hole connected to the rounded corner die, and a third blanking hole connected to the punching die; The die mounting plate is also provided with a hopper for receiving waste materials dropped from the first drop hole, the second drop hole and the third drop hole.

12. The busbar cutting mechanism according to claim 1, wherein: The busbar cutting mechanism also includes a busbar guide assembly, which is arranged on one side of the die mounting plate or symmetrically arranged on both sides of the die mounting plate. The busbar guide assembly includes a first guide wheel and a second guide wheel arranged side by side, and a guide gap is formed between the first guide wheel and the second guide wheel for the busbar to be cut to pass through.

13. A busbar preparation device, characterized in that: The busbar preparation device comprises a feeding mechanism, a pressing mechanism, a traction mechanism and a busbar cutting mechanism according to any one of claims 1 to 12, wherein: The discharge mechanism is used to discharge the busbar; The traction mechanism is used to pull the busbar released by the discharge mechanism, so that the busbar passes through the pressing mechanism and the busbar cutting mechanism in sequence; The pressing mechanism is used to press the busbar, and the busbar cutting mechanism is used to cut the pressed busbar to obtain a busbar segment with a predetermined length, and the cut busbar segment has at least one of a right-angle end and a rounded end.

Images