Bus bar pressing mechanism and bus bar cutting device

Abstract

The utility model discloses a bus bar pressing mechanism and a bus bar cutting device.The bus bar pressing mechanism comprises a base, a driving part, a pressing part and a pressure-bearing part, the pressure-bearing part is configured to bear a bus bar to be pressed, the driving end of the driving part is connected with the pressing part, the driving part is used for driving the first end of the pressing part to be close to or away from the pressure-bearing part, and the first end of the pressing part is connected with the pressure-bearing part; the first end of the pressing piece is provided with a pressing part, and the hardness of the pressing part is smaller than that of the bus bar. The driving part drives the first end of the pressing part to move close to the bearing surface of the pressure-bearing part, so that the bus bar is pressed and fixed on the bearing surface of the pressure-bearing part through the pressing part, and the bus bar pressing mechanism realizes that the bus bar is pressed and fixed on the bearing surface of the bearing part through the matching of the driving part, the pressing part and the pressure-bearing part. And meanwhile, the first end of the pressing piece is provided with the pressing part, and the hardness of the pressing part is set to be smaller than that of the bus bar, so that indentations are prevented from being formed on the bus bar during pressing, and the processing quality of the bus bar is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of photovoltaic module production, and particularly relates to a busbar pressing mechanism and a busbar cutting device. BACKGROUND

[0002] The busbars are connected between adjacent cell strings in a photovoltaic module, which requires a specific busbar cutting device to cut the busbars, and then subsequent processes are performed. The existing busbar cutting device is usually provided with a traction mechanism, a pressing mechanism and a cutting mechanism. In the specific implementation process: the traction mechanism pulls the busbar out of the roll-shaped material roll, and the pressing mechanism presses the pulled busbar, and then the cutting mechanism cuts the busbar of a predetermined length, and the traction mechanism delivers the cut busbar of the predetermined length to the feeding station, so that the subsequent handling mechanism takes away the busbar.

[0003] However, the existing pressing mechanism forms a pressure mark on the upper surface of the busbar, which affects the subsequent processing of the busbar and the appearance of the photovoltaic module. CONTENT OF THE UTILITY MODEL

[0004] The application aims to provide a busbar pressing mechanism to solve the problem that the existing pressing mechanism forms a pressure mark on the busbar when pressing the busbar, and another purpose of the application is to provide a busbar cutting device comprising the busbar pressing mechanism.

[0005] To achieve this purpose, the application adopts the following technical solutions:

[0006] In a first aspect, the application provides a busbar pressing mechanism comprising a base, a driving member, a pressing member and a pressure receiving member, wherein:

[0007] The pressure receiving member is configured to carry the busbar to be pressed;

[0008] The fixed end of the driving member is mounted on the base, and the driving end of the driving member is connected to the pressing member. The driving member is configured to drive the first end of the pressing member to approach or move away from the carrying surface of the pressure receiving member. The first end of the pressing member is provided with a pressing portion, and the hardness of the pressing portion is less than the hardness of the busbar.

[0009] The driving member drives the first end of the pressing member to move close to the carrying surface of the pressure receiving member, so as to press and fix the busbar on the carrying surface of the pressure receiving member by the pressing portion.

[0010] The busbar pressing mechanism provided by the application realizes the pressing and fixing of the busbar on the carrying surface of the carrying member through the cooperation of the driving member, the pressing member and the pressure receiving member. At the same time, the first end of the pressing member is provided with a pressing portion, and the hardness of the pressing portion is set to be less than the hardness of the busbar, thereby avoiding the formation of a pressure mark on the busbar during pressing, and improving the processing quality of the busbar.

[0011] Optionally, the pressing part is a pressing head detachably mounted at the first end of the pressing member.

[0012] By setting the pressing part as a pressing head detachably mounted at the first end of the pressing member, the replaceability of the pressing part is realized, and only the pressing head needs to be replaced after long-term use, thereby reducing the maintenance and use costs.

[0013] Optionally, the first end of the pressing member extends downwardly with two parallel and spaced limiting blocks, the first end of the pressing head is provided with an upwardly extending positioning block, the positioning block of the pressing head is fitted and inserted into the gap between the two limiting blocks, the positioning block of the pressing head is fixedly mounted on the two limiting blocks by screws, the bottom ends of the two limiting blocks abut against the upper surface of the pressing head, and the second end of the pressing head has a pressing surface parallel to the bearing surface of the bearing member when pressing the bus bar.

[0014] By fitting and mounting the positioning block of the pressing head in the gap between the two limiting blocks and abutting the bottom ends of the two limiting blocks against the upper surface of the pressing head through screws, the pressing head is prevented from shaking relative to the pressing member during pressing, thereby providing a stable and firm mounting mode of the pressing head and improving the uniformity of the force received by the bus bar during pressing, and further reducing the probability of indentation on the bus bar during pressing.

[0015] Optionally, the pressing part is a patch fixedly attached to the first end of the pressing member.

[0016] By setting the pressing part as a patch fixedly attached to the first end of the pressing member, a pressing part with simple structure and low cost is provided.

[0017] Optionally, the pressing member is detachably mounted on the base and located directly above the bearing member, the driving end of the driving member is connected to the second end of the pressing member, and the driving member is configured to drive the pressing member to ascend and descend to drive the pressing part to approach or move away from the bearing surface of the bearing member.

[0018] By setting the pressing member to be detachably mounted on the base and located directly above the bearing member, the driving member directly drives the pressing member to ascend and descend, thereby driving the pressing part to approach or move away from the bearing surface of the bearing member, and a driving mode of the pressing member with simple structure, low cost and high efficiency is provided.

[0019] Optionally, the middle part of the pressing member is rotatably hinged to the base through a rotating shaft, the second end of the pressing member is provided with a waist-shaped hole extending along the length direction of the pressing member, the driving end of the driving member is provided with a roller shaft, the roller shaft is arranged in the waist-shaped hole and can move along the length direction of the waist-shaped hole, and the driving member is configured to drive the second end of the pressing member to rotate, thereby driving the first end of the pressing member to rotate to drive the pressing part to approach or move away from the bearing surface of the bearing member.

[0020] By hinging the pressing piece on the base, the driving end of the driving piece is arranged in the waist-shaped hole of the second end of the pressing piece through the roller shaft, the second end of the pressing piece is driven to rotate, and then the second end of the pressing piece is driven to rotate, so that the pressing part is driven to approach or move away from the bearing surface of the bearing part, thereby providing a stable and reliable driving mode of the pressing piece with good adaptability and flexibility.

[0021] Optionally, the busbar pressing mechanism further comprises a detection assembly, the detection assembly is arranged at the front or rear of the bearing part, and the detection assembly is configured to detect the welding scar on the busbar.

[0022] The detection assembly comprises a detection piece, a floating roller and a supporting roller, the floating roller is arranged above the supporting roller and can float up and down, a gap for the busbar to pass through is formed between the floating roller and the supporting roller, the floating roller is pressed against the top surface of the busbar, the supporting roller abuts against the bottom surface of the busbar, the floating roller is provided with a moving piece extending upward, and the detection piece is configured to detect the height of the moving piece to obtain the height floating information of the floating roller.

[0023] By arranging the detection assembly, automatic detection of the welding scar on the busbar is realized, and then the busbar with the welding scar part is automatically cut off by the cutting mechanism; by cooperation of the detection piece, the floating roller, the supporting roller and the moving piece, the height floating information of the floating roller can be obtained, and then whether there is a welding scar on the busbar is determined according to the height floating information of the floating roller, thereby providing a detection assembly with a clever design and high detection accuracy.

[0024] Optionally, the hardness of the pressing part is not less than HV75 and not greater than HV125.

[0025] By setting the hardness of the pressing part to be not less than HV75 and not greater than HV125, reliable pressing of the pressing part on the busbar is ensured on the premise of avoiding leaving marks on the surface of the busbar.

[0026] Optionally, the roughness of the bottom surface of the pressing part is not less than 0.4 microns and not greater than 1.6 microns.

[0027] By setting the roughness of the bottom surface of the pressing part to be not less than 0.4 microns and not greater than 1.6 microns, appropriate friction can be provided on the premise of avoiding leaving marks on the surface of the busbar, and reliable pressing of the pressing part on the busbar is further ensured.

[0028] In a second aspect, the application provides a busbar cutting device, which comprises a traction mechanism, a cutting mechanism and the above-mentioned busbar pressing mechanism, wherein:

[0029] The traction mechanism is arranged at the rear of the cutting mechanism, and the traction mechanism is configured to pull the busbar to be cut out of the roll by a predetermined length.

[0030] The cutting mechanism is configured to cut the pulled-out busbar of the predetermined length;

[0031] The busbar pressing mechanism is arranged in front of the cutting mechanism, and the busbar pressing mechanism is configured to press and fix the busbar after the busbar is pulled out of the predetermined length and before the busbar is cut;

[0032] The traction mechanism is further configured to deliver the cut busbar of the predetermined length to the next process.

[0033] The busbar cutting device provided in the application realizes automatic cutting of the busbar and delivery of the cut busbar to the next process through cooperation of the traction mechanism, the cutting mechanism and the busbar pressing mechanism, thereby improving production efficiency; and the busbar pressing mechanism can press and fix the busbar on the bearing surface of the bearing member while avoiding formation of a press mark on the busbar during pressing, thereby improving processing quality of the busbar. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a schematic diagram of a three-dimensional structure of the busbar pressing mechanism provided in Embodiment One of the application;

[0035] Figure 2 is a schematic diagram of an installation structure of the pressing member of the busbar pressing mechanism provided in Embodiment One of the application;

[0036] Figure 3 is a schematic diagram of a three-dimensional structure of the busbar pressing mechanism provided in Embodiment Two of the application;

[0037] Figure 4 is a schematic diagram of a three-dimensional structure of the pressing member of the busbar pressing mechanism provided in Embodiment Two of the application;

[0038] Figure 5 is a schematic diagram of a three-dimensional structure of the busbar cutting device provided in the application;

[0039] Figures 1 to 5 The following reference signs are included in the drawings:

[0040] The busbar pressing mechanism 10, the base 11, the driving member 12, the roller shaft 120, the pressing member 13, the waist-shaped hole 130, the pressing part 14, the pressing head 140, the positioning block 141, the limiting block 15, the rotating shaft 16, the pressure-bearing member 17, the detection assembly 18, the detection member 180, the floating roller 181, the supporting roller 182, the moving member 183, the guide roller 19, the pressing roller 190;

[0041] The busbar 20;

[0042] The traction mechanism 30;

[0043] The cutting mechanism 40;

[0044] The guide assembly 50, the linear guide rail 51, and the sliding block 52. DETAILED DESCRIPTION

[0045] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0046] The adjacent cell strings in the photovoltaic module are connected in series by the bus bar, which requires the use of a specific bus bar cutting device to cut the bus bar. After cutting, subsequent processes are carried out. The existing bus bar cutting device is usually provided with a traction mechanism, a pressing mechanism and a cutting mechanism. In the specific implementation process: the traction mechanism pulls the bus bar out of the roll-shaped material roll, and the pressing mechanism presses the pulled bus bar, and the cutting mechanism cuts the bus bar of a predetermined length, and the traction mechanism delivers the cut bus bar of a predetermined length to the feeding station for the carrying mechanism of the subsequent process to take away the bus bar.

[0047] However, the existing pressing mechanism will form a pressure mark on the upper surface of the bus bar, affecting the subsequent processing of the bus bar and the appearance of the photovoltaic module.

[0048] Therefore, in a first aspect, the present application provides a bus bar pressing mechanism 10 for pressing the bus bar 20. Please refer to Figure 1 and Figure 2 The bus bar pressing mechanism 10 provided by the present application comprises a base 11, a driving member 12, a pressing member 13 and a pressure receiving member 17. The pressure receiving member 17 is configured to carry the bus bar 20 to be pressed. The fixed end of the driving member 12 is installed on the base 11. The driving end of the driving member 12 is connected to the pressing member 13. The driving member 12 is configured to drive the first end of the pressing member 13 to move close to or away from the carrying surface of the pressure receiving member 17. The first end of the pressing member 13 is provided with a pressing portion 14. The hardness of the pressing portion 14 is less than the hardness of the bus bar 20. The driving member 12 drives the first end of the pressing member 13 to move close to the carrying surface of the pressure receiving member 17, so as to press and fix the bus bar 20 on the carrying surface of the pressure receiving member 17 through the pressing portion 14.

[0049] As can be seen, the bus bar pressing mechanism 10 provided by the present application realizes the pressing and fixing of the bus bar 20 on the carrying surface of the pressure receiving member 17 through the cooperation of the driving member 12, the pressing member 13 and the pressure receiving member 17. At the same time, the first end of the pressing member 13 is provided with the pressing portion 14, and the hardness of the pressing portion 14 is set to be less than the hardness of the bus bar 20, thereby avoiding the formation of a pressure mark on the bus bar 20 during pressing, and improving the processing quality of the bus bar 20.

[0050] As an implementation manner, the pressing portion 14 is a pressing head 140 which is detachably installed on the first end of the pressing member 13.

[0051] It can be seen that by setting the pressing part 14 to be detachably mounted on the pressing head 140 of the first end of the pressing member 13, the replaceability of the pressing part 14 is realized, and only the pressing head 140 needs to be replaced after long-term use, thereby reducing the maintenance and use costs.

[0052] As an embodiment, the first end of the pressing member 13 extends downwardly with two parallel and spaced limiting blocks 15, the first end of the pressing head 140 is provided with an upwardly extending positioning block 141, the positioning block 141 of the pressing head 140 is inserted into the gap between the two limiting blocks 15, the positioning block 141 of the pressing head 140 is fixedly mounted on the two limiting blocks 15 by screws, the bottom ends of the two limiting blocks 15 abut against the upper surface of the pressing head 140, and the second end of the pressing head 140 has a pressing surface which is parallel to the bearing surface of the bearing member 17 when pressing the bus bar 20.

[0053] It can be seen that by screwing the positioning block of the pressing head 140 into the gap between the two limiting blocks 15 and abutting the bottom ends of the two limiting blocks 15 against the upper surface of the pressing head 140, the pressing head 140 is prevented from shaking relative to the pressing member 13 during pressing, thereby providing a stable and firm mounting mode of the pressing head 140, and improving the uniformity of the force received by the bus bar 20 during pressing, thereby further reducing the probability of indentation on the bus bar 20 during pressing.

[0054] As an embodiment, the pressing part 14 is a patch fixedly attached to the first end of the pressing member 13.

[0055] It can be seen that by setting the pressing part 14 to be a patch fixedly attached to the first end of the pressing member 13, a simple and low-cost pressing part 14 is provided.

[0056] The pressing member 13 of the bus bar pressing mechanism 10 provided by the embodiments of the present application adopts two different mounting modes, and the two different mounting modes are described in detail as follows:

[0057] Embodiment one:

[0058] Please refer to Figure 2 As an embodiment, the pressing member 13 is mounted on the base 11 in a lifting manner and located directly above the bearing member 17, the driving end of the driving member 12 is connected to the second end of the pressing member 13, and the driving member 12 is configured to drive the pressing member 13 to lift or lower, so as to drive the pressing part 14 to approach or move away from the bearing surface of the bearing member 17.

[0059] Specifically, a guide assembly 50 is provided between the base 11 and the clamping member 13. The guide assembly 50 includes a linear guide rail 51 and a slider 52. The linear guide rail 51 is laid vertically on the base 11, and the slider 52 is slidably mounted on the linear guide rail 51. The slider 52 is fixedly connected to the clamping member 13. Through the cooperation of the linear guide rail 51 and the slider 52, the stability of the lifting and lowering of the clamping member 13 is improved.

[0060] As can be seen, by setting the clamping member 13 to be installed on the base 11 in a height-adjustable manner and located directly above the pressure bearing member 17, the driving member 12 directly drives the clamping member 13 to rise and fall, thereby causing the clamping part 14 to move closer to or away from the bearing surface of the pressure bearing member 17, a driving method for the clamping member 13 with simple structure, low cost and high efficiency is provided.

[0061] Example 2:

[0062] Please see Figure 3 and Figure 4 As shown, in another embodiment, the middle part of the clamping member 13 is rotatably hinged to the base 11 via a pivot 16. The second end of the clamping member 13 has a waist-shaped hole 130 extending along the length direction of the clamping member 13. The driving end of the driving member 12 is provided with a roller 120, which passes through the waist-shaped hole 130 and can move along the length direction of the waist-shaped hole 130. The driving member 12 is configured to drive the second end of the clamping member 13 to rotate, thereby driving the first end of the clamping member 13 to rotate, so as to drive the clamping part 14 to approach or move away from the bearing surface of the pressure member 17.

[0063] As can be seen, by hinged clamping member 13 to base 11, and the driving end of driving member 12 is set in the waist-shaped hole 130 of the second end of clamping member 13 through roller shaft 120, the second end of clamping member 13 is driven to rotate, thereby driving the second end of clamping member 13 to rotate, so as to drive clamping part 14 to approach or move away from the bearing surface of bearing member 17, a stable, reliable, adaptable and flexible driving method for clamping member 13 is provided.

[0064] Please see Figure 1As shown, as an embodiment, the busbar pressing mechanism 10 further comprises a detection assembly 18 arranged in front of or behind the pressure bearing member 17, the detection assembly 18 is configured to detect the welding scar on the busbar 20, the detection assembly 18 comprises a detection member 180, a floating roller 181 and a supporting roller 182, the floating roller 181 is arranged above the supporting roller 182 and can float up and down, the floating roller 181 and the supporting roller 182 have a gap for the busbar 20 to pass through, the floating roller 181 is pressed against the top surface of the busbar 20, the supporting roller 182 abuts against the bottom surface of the busbar 20, the floating roller 181 is provided with a moving member 183 extending upward, and the detection member 180 is configured to detect the height of the moving member 183 to obtain the height floating information of the floating roller 181.

[0065] As can be seen, by arranging the detection assembly 18, automatic detection of the welding scar on the busbar 20 is realized, and the busbar 20 with the welding scar part is automatically cut off by the cutting mechanism; through the cooperation of the detection member 180, the floating roller 181, the supporting roller 182 and the moving member 183, the height floating information of the floating roller 181 can be obtained, and whether there is a welding scar on the busbar 20 can be determined according to the height floating information of the floating roller 181, thereby providing a detection assembly 18 which is designed ingeniously and has high detection accuracy.

[0066] Please refer to Figure 1 and Figure 2 As an embodiment, the busbar pressing mechanism 10 further comprises at least one set of guide rollers 19 arranged in front of the bearing member 17, each set of guide rollers 19 comprises two guide rollers 19 arranged at intervals, and a guide channel for guiding the busbar 20 is formed between the two guide rollers 19.

[0067] As can be seen, at least one set of guide rollers 19 is arranged in front of the bearing member 17 to guide the busbar 20 in front of the bearing member 17, so that the position of the busbar 20 is prevented from deviating.

[0068] As an embodiment, the front of the guide roller 19 is provided with a pressing roller 190, the pressing roller 190 is rollably mounted on the base 11, and the pressing roller 190 abuts against the upper surface of the busbar 20 to limit the busbar 20 above the busbar 20, thereby preventing the busbar 20 from jumping.

[0069] As an embodiment, the hardness of the pressing portion 14 is not less than HV75 and not greater than HV125.

[0070] Specifically, the material of the pressing portion 14 is preferably pom of non-metallic material.

[0071] It can be seen that by setting the hardness of the pressing portion 14 to be not less than HV75 and not greater than HV125, the pressing portion 14 can reliably press the bus bar 20 without causing indentation on the surface of the bus bar 20.

[0072] As an implementation, the roughness of the bottom surface of the pressing portion 14 is not less than 0.4 microns and not greater than 1.6 microns.

[0073] It can be seen that by setting the roughness of the bottom surface of the pressing portion 14 to be not less than 0.4 microns and not greater than 1.6 microns, appropriate friction can be provided without causing indentation on the surface of the bus bar 20, further ensuring reliable pressing of the bus bar 20 by the pressing portion 14.

[0074] The bus bar pressing mechanism 10 proposed in the embodiments has the following advantages:

[0075] 1) The bus bar 20 is pressed and fixed on the bearing surface of the bearing member 17, avoiding indentation on the bus bar 20 during pressing, and improving the processing quality of the bus bar 20;

[0076] 2) The pressing portion 14 is replaceable, and only the pressing head 140 needs to be replaced after long-term use, reducing maintenance and use costs;

[0077] 3) The pressing head 140 is stably installed and has good reliability, avoiding shaking of the pressing head 140 relative to the pressing member 13 during pressing, improving the uniformity of the force on the bus bar 20 during pressing, and further reducing the probability of indentation on the bus bar 20 during pressing;

[0078] 4) The height floating information of the floating roller 181 is used to determine whether there is a welding scar on the bus bar 20, providing a detection assembly 18 with ingenious design and high detection accuracy.

[0079] In a second aspect, the application also proposes a bus bar cutting device, please refer to Figure 5 The bus bar cutting device proposed in the embodiments includes a traction mechanism 30, a cutting mechanism 40, and the above-mentioned bus bar pressing mechanism 10. The traction mechanism 30 is arranged behind the cutting mechanism 40, and is configured to pull out a predetermined length of the bus bar 20 from a roll. The cutting mechanism 40 is configured to cut the predetermined length of the bus bar 20. The bus bar pressing mechanism 10 is arranged in front of the cutting mechanism 40, and is configured to press and fix the bus bar 20 after the bus bar 20 is pulled out to a predetermined length and before the bus bar 20 is cut. The traction mechanism 30 is also configured to deliver the predetermined length of the bus bar 20 after cutting to the next process.

[0080] It can be seen that the bus bar cutting device realizes automatic cutting of the bus bar 20 and conveying the cut bus bar 20 to the next process through the cooperation of the traction mechanism 30, the cutting mechanism 40 and the bus bar pressing mechanism 10, and the production efficiency is improved; and the bus bar pressing mechanism 10 can avoid forming a pressure mark on the bus bar 20 when pressing, while realizing the pressing and fixing of the bus bar 20 on the bearing surface of the bearing member 17, and the processing quality of the bus bar 20 is improved.

[0081] The above examples only illustrate the basic principles and characteristics of the present application, and the present application is not limited to the above examples. Various changes and modifications can be made to the present application without departing from the spirit and scope of the present application, and these changes and modifications all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A busbar hold-down mechanism, characterized by, The busbar pressing mechanism comprises a base, a driving member, a pressing member and a pressure-bearing member, wherein: The pressure-bearing member is configured to carry the busbar to be pressed; The fixed end of the driving member is mounted on the base, and the driving end of the driving member is connected to the first end of the pressing member, and the driving member is configured to drive the first end of the pressing member to move close to or away from the load-carrying surface of the pressure-bearing member, and the first end of the pressing member is provided with a pressing portion, and the hardness of the pressing portion is less than the hardness of the busbar; The driving member drives the first end of the pressing member to move close to the load-carrying surface of the pressure-bearing member, so as to press and fix the busbar on the load-carrying surface of the pressure-bearing member through the pressing portion.

2. The busbar hold-down mechanism of claim 1, wherein The pressing portion is a pressing head which is detachably mounted on the first end of the pressing member.

3. The busbar hold-down mechanism of claim 2, wherein, The first end of the pressing member extends downwardly with two parallel and spaced limiting blocks, the first end of the pressing head is provided with a positioning block extending upwardly, the positioning block of the pressing head is inserted into the gap between the two limiting blocks, and the positioning block of the pressing head is fixedly mounted on the two limiting blocks by screws, the bottom ends of the two limiting blocks abut against the upper surface of the pressing head, the second end of the pressing head has a pressing surface which is parallel to the load-carrying surface of the pressure-bearing member when the busbar is pressed.

4. The busbar hold-down mechanism of claim 1, wherein The pressing portion is a patch which is fixedly attached to the first end of the pressing member.

5. The busbar hold-down mechanism of claim 1, wherein The pressing member is mounted on the base in a liftable manner and located directly above the pressure-bearing member, the driving end of the driving member is connected to the second end of the pressing member, and the driving member is configured to drive the pressing member to lift or lower, so as to drive the pressing portion to move close to or away from the load-carrying surface of the pressure-bearing member.

6. The busbar hold-down mechanism of claim 1, wherein The middle part of the pressing member is rotatably hinged to the base through a rotating shaft, the second end of the pressing member is provided with a waist-shaped hole extending along the length direction of the pressing member, the driving end of the driving member is provided with a roller shaft, the roller shaft is arranged in the waist-shaped hole and can move along the length direction of the waist-shaped hole, and the driving member is configured to drive the second end of the pressing member to rotate, so as to drive the first end of the pressing member to rotate, so as to drive the pressing portion to move close to or away from the load-carrying surface of the pressure-bearing member.

7. The busbar hold-down mechanism of claim 1, wherein The busbar pressing mechanism further comprises a detection assembly, the detection assembly is arranged in front of or behind the pressure-bearing member, and the detection assembly is configured to detect the welding scar on the busbar; The detection assembly comprises a detection member, a floating roller and a supporting roller, the floating roller is arranged above the supporting roller in a floating manner, the floating roller and the supporting roller have a gap for the busbar to pass through, the floating roller is pressed against the top surface of the busbar, and the supporting roller abuts against the bottom surface of the busbar, the floating roller is provided with a moving member extending upwardly, and the detection member is configured to detect the height of the moving member to obtain the height floating information of the floating roller.

8. The busbar hold-down mechanism of claim 1, wherein The hardness of the pressing portion is not less than HV75 and not more than HV125.

9. The busbar hold-down mechanism of claim 1, wherein, The roughness of the bottom surface of the pressing portion is not less than 0.4 microns and not more than 1.6 microns.

10. A busbar cutting device, characterized by The busbar cutting device comprises a traction mechanism, a cutting mechanism and the busbar pressing mechanism according to any one of claims 1 to 9. The traction mechanism is arranged behind the cutting mechanism, and is configured to pull out the busbar from the roll by a predetermined length; The cutting mechanism is configured to cut the busbar pulled out by the predetermined length; The busbar pressing mechanism is arranged in front of the cutting mechanism, and is configured to press and fix the busbar after the busbar is pulled out by the predetermined length and before the busbar is cut; The traction mechanism is further configured to deliver the busbar cut by the predetermined length to the next process.

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