Tool supply mechanism and series welding machine

Abstract

The utility model provides a tool supply mechanism which comprises a conveying assembly, a limiting assembly and an adjusting assembly, the conveying assembly is provided with a conveying face for bearing and conveying tools, and the conveying assembly is configured to sequentially convey the multiple tools to a feeding station in the first direction; the first direction is parallel to the length direction of the conveying surface of the conveying assembly, the feeding station comprises a first position and a second position, the distance between the first position and the battery piece feeding station is a piece distance, and the distance between the second position and the battery piece feeding station is a string distance; and the limiting assembly is located at the feeding station, the limiting assembly comprises a limiting piece located on the conveying face of the conveying assembly, and the limiting assembly is arranged at the driving end of the adjusting assembly. By the adoption of the technical scheme, on the premise that other parts of the series welding machine are not improved, rapid adjustment of the distance between the battery pieces is achieved, and the working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic cell production equipment, and specifically to a tool supply mechanism and a string welding machine. Background Art

[0002] A battery string is formed by stacking solder ribbons and battery cells in a predetermined order and electrically connecting the solder ribbons to the grid lines of the battery cells. Currently, most battery strings are produced automatically using a stringing machine, which includes a solder ribbon supply mechanism, a battery cell supply mechanism, a tool supply mechanism, a transport mechanism, a conveyor line, and a fixing mechanism. The solder ribbon supply mechanism sequentially pulls several solder ribbon groups onto the conveyor line, the battery cell supply mechanism sequentially transports several battery cells to a loading station, the tool supply mechanism sequentially transports several tooling to the loading station, and the transport mechanism transports the battery cells and tooling from the loading station to the conveyor line, so that the front half of each solder ribbon group is located on the upper surface of the previous battery cell and the rear half is located below the rear battery cell. The tooling presses the front half of the solder ribbon group against the upper surface of the previous battery cell, achieving stacking of the solder ribbon groups and battery cells. The conveyor line transports the stacked solder ribbon groups and battery cells to the fixing mechanism, which fixes the stacked solder ribbon groups and battery cells together.

[0003] In order to achieve continuous production of battery strings, after each battery string is stacked, the string welder will stack the first half of the inter-string welding ribbon group on the last battery cell of the previous battery string, and stack the first battery cell of the next battery string on the second half of the inter-string welding ribbon group; the string welder will transport the laid-out multiple groups of continuous battery strings to the welding station to complete heating and welding, and then use the string cutter to cut the inter-string welding ribbon group between two adjacent battery strings to form an independent battery string.

[0004] To facilitate cutting the inter-string welding ribbon group between two adjacent battery strings, the string spacing (i.e., the spacing between the last battery cell of the previous battery string and the first battery cell of the next battery string) must be greater than the spacing between cells within the battery string. Therefore, when the conveying mechanism transports the last tool of the previous battery string and the first battery cell of the next battery string, the spacing between the last tool of the previous battery string and the first battery cell of the next battery string must be greater than the spacing between other tools and battery cells being transported simultaneously. However, the tool supply mechanism in the prior art generally transports the tool by stepping, and the position of the tool supply mechanism at each time it transports the tool to the loading station is fixed. Therefore, the existing string welding machine cannot meet the demand for adjusting the spacing between adjacent battery cells. Summary of the Invention

[0005] In order to solve the above technical problems, this application provides a tool supply mechanism, and its specific technical solution is as follows:

[0006] A tool supply mechanism, comprising a conveying component, a limiting component and an adjusting component, wherein:

[0007] The conveying assembly is provided with a conveying surface configured to carry and convey the tooling, and the conveying assembly is configured to sequentially convey a plurality of toolings to a loading station along a first direction, wherein the first direction is parallel to the length direction of the conveying surface of the conveying assembly, and the loading station includes a first position and a second position, wherein the spacing between the first position and the battery cell loading position is the cell spacing, and the spacing between the second position and the battery cell loading position is the string spacing;

[0008] The limiting assembly is located at the loading station, and the limiting assembly includes a limiting member located on the conveying surface of the conveying assembly, and the limiting member is configured to keep the tooling to be transported at the first position;

[0009] The limiting assembly is arranged at the driving end of the adjusting assembly, and the adjusting assembly is at least configured to drive the limiting member and the tooling restricted by the limiting member to move back and forth along the first direction, so that the driven limiting member and the tooling stay at the first position or the second position of the loading station.

[0010] By adopting the above technical solution, the tooling transported to the limit assembly is blocked by the limit part, so that the tooling stays at the loading station and cannot continue to move with the conveying assembly. If the spacing between the battery cell required to be pressed by the tooling to be transported and the next battery cell is the cell spacing, the component moving tooling and the limit part are adjusted to make the tooling in the first position, and the transport mechanism directly transports the tooling and the battery cell to be transported in the first position to the conveyor line, and makes the tooling just on the battery cell to be pressed, and the spacing between the battery cell transported together with the tooling and the battery cell pressed by the tooling will just The spacing between the cells to be transported and the cells to be compressed is adjusted to the cell spacing; if the spacing between the cell to be compressed by the tooling to be transported and the next cell is the string spacing, the component moving tooling and the limiter are adjusted to make the tooling be in the second position, and the transport mechanism transports the tooling and the cells to be transported in the second position to the conveyor line, and makes the tooling just on the cells to be compressed, and the spacing between the cells transported together with the tooling and the cells compressed by the tooling will be adjusted to the string spacing. Without improving other components of the string welding machine, the cell spacing can be quickly adjusted, thereby improving work efficiency.

[0011] Optionally, the limiting assembly further includes a base plate, and the limiting member includes two blocks, which are flush mounted on the base plate. The two blocks are respectively located on both sides of the conveying assembly, and the blocking parts of the two blocks are located on the conveying surface of the conveying assembly.

[0012] By setting two blocks on both sides of the conveying assembly, the blocking parts of the two blocks can simultaneously block the two ends of the tooling on the conveying assembly, ensuring the stability of the position of the tooling when it is limited, and will not deviate relative to the conveying surface of the conveying assembly, thereby improving the position accuracy of automated conveying.

[0013] Optionally, the limit assembly also includes two first sensors installed on the substrate, and elastic members are respectively provided in the two blocks, which penetrate the blocks along the first direction, and the first end and the second end of the elastic member along its own length direction respectively protrude from the blocks. When the tooling abuts against the blocks, the first end of the elastic member is pressed and the second end of the elastic member enters the sensing area of ​​the first sensor along the first direction.

[0014] By adopting the above technical solution, when the conveying component conveys the tooling to the loading station along the first direction, the tooling will first abut against and push the first end of the elastic member, and the elastic member will move along the first direction after being compressed. When the tooling moves to the position against the block, the second end of the elastic member enters the sensing area of ​​the first sensor, and the first sensor sends a signal to the control module. The control module will know that the tooling has moved to the limit member. At this time, the control module can control the adjustment component to drive the tooling to move to the first position or the second position, and use the first sensor to realize the control module to automatically and accurately arrange the work of each component.

[0015] Optionally, the limiting assembly further includes two guide rods mounted on the base plate, the two guide rods extending along the first direction, the first ends of the two guide rods respectively abutting against one of the blocks, the spacing between the two guide rods being greater than the dimension of the tooling perpendicular to the first direction, and the second ends of the two guide rods being provided with a slope surface gradually tilted outward from the conveying surface of the conveying assembly.

[0016] By using two guide rods to further limit the position of the tooling when it abuts against the stop block, the movement of the tooling in a direction perpendicular to the first direction is reduced, making it easier for the transport mechanism to automatically pick up the tooling.

[0017] Optionally, the limiting assembly also includes a second driving member and a pressure block, the pressure block is located on the outside of the first guide rod, and the second driving member is configured to drive the pressure block to slide horizontally in a direction perpendicular to the first direction, so that the pressure block cooperates with the second guide rod to clamp the tooling on the stop block or release the tooling.

[0018] By adopting the above technical solution, when the conveying component transports the tooling to be transported to the loading station, after the tooling to be transported rests on the stop block, the control module receives the signal sent by the first sensor and controls the second driving component to push the pressing block out and press it on the tooling at the loading station, further limiting the position of the tooling in a direction perpendicular to the first direction, making it convenient for the conveying mechanism to automatically and accurately pick up the tooling.

[0019] Optionally, a second sensor is provided on the second guide rod, and the second sensor is placed in a direction perpendicular to the first direction. After the tooling is pushed by the pressing block and abuts against the second guide rod, the tooling enters the sensing area of ​​the second sensor.

[0020] By adopting the above technical solution, after the tooling enters the sensing area of ​​the second sensor, the second sensor will send a signal to the control module, and the control module will know that the tooling has been at the loading station and is clamped by the pressing block. At this time, the control module can control the adjustment component to drive the tooling to move to the first position or the second position, and use the second sensor to realize the control module to automatically and accurately arrange the work of each component.

[0021] Optionally, two magnets are provided on the abutting surface of the second guide rod, and one end of the tooling close to the abutting surface of the second guide rod is made of ferromagnetic material.

[0022] By adopting the above technical solution, when the second driving member drives the pressure block to press the tooling onto the second guide rod, the two magnets will pull the tooling through magnetic force, so that the end face of the tooling fits tightly onto the second guide rod, thereby preventing the tooling from being offset and clamped between the second guide rod and the pressure block, resulting in inaccurate subsequent tooling position and the inability of the transport mechanism to accurately pick up the tooling.

[0023] Optionally, the limiting assembly further includes at least two aligning wheels mounted on the limiting member, and the at least two aligning wheels are located below the conveying surface of the conveying assembly. The adjustment assembly is also configured to drive the limiting member to move back and forth along the first direction so that the at least two aligning wheels on the limiting member are driven to push the battery cells at the upper material level of the battery cells.

[0024] The adjustment component first drives the limiter and the regularizing wheel to push the battery cell at the upper position of the battery cell to fix the position of the battery cell, and then moves the tooling to the first position or the second position to make the spacing between the tooling and the battery cell accurate, ensuring that the battery strings formed by subsequent string assembly are neat.

[0025] Optionally, the limiting assembly further comprises two auxiliary pads, the two auxiliary pads being located oppositely on either side of the conveying surface of the conveying assembly, the two auxiliary pads extending along the first direction, and the heights of the supporting surfaces of the two auxiliary pads gradually increasing along the first direction from below the conveying surface of the conveying assembly to above the conveying surface of the conveying assembly;

[0026] As the conveying assembly drives the tooling to move along the first direction to the position limiting assembly, the two auxiliary pad rods lift the tooling and separate it from the conveying surface of the conveying assembly.

[0027] By adopting the above technical solution, the tooling will be lifted up by the auxiliary pad when being transported by the conveying assembly to the limiting assembly. Then, when the adjustment assembly drives the tooling and the limiting assembly to move to the first position or the second position, the tooling will not wear the conveying assembly.

[0028] Optionally, the limiting component also includes an anti-hanging part, which is located above the conveying surface of the conveying component. The distance between the anti-hanging part and the conveying surface of the conveying component is greater than the thickness of the tooling. The distance between the anti-hanging part and the limiting part in the first direction is greater than the size of the tooling along the first direction.

[0029] The conveying component transports multiple tooling to the loading station in sequence. When the first tooling is in the first position, if the conveying component continues to transport the tooling, the second tooling will easily stick to the first tooling. By setting the anti-hanging parts above the conveying surface of the conveying component, when the subsequent handling mechanism lifts the first tooling, the second tooling next to the first tooling will be limited by the anti-hanging parts, preventing the second tooling from rising with the first tooling.

[0030] Optionally, the adjustment assembly is located below the conveying surface of the conveying assembly, and the adjustment assembly includes a base, a first driving member and a sliding seat, the first driving member is installed on the base, the sliding seat is slidably installed on the base along a first direction, the sliding seat is fixedly connected to the driving end of the first driving member, the limiting assembly is installed on the sliding seat, and the first driving member is configured to drive the sliding seat to slide back and forth along the first direction.

[0031] By adopting the above technical solution, the adjustment component is installed below the conveying surface of the conveying component, which will not affect the normal operation of the conveying component.

[0032] In order to solve the above technical problems, the present application also provides a string welding machine, and its specific technical solution is as follows:

[0033] A stringer, comprising a ribbon supply mechanism, a cell supply mechanism, a tool supply mechanism, a transport mechanism, and a conveyor line, wherein:

[0034] The welding ribbon supply mechanism is configured to pull a plurality of welding ribbon groups onto the conveyor line in sequence;

[0035] The cell supply mechanism is configured to sequentially convey a plurality of cell sheets to the cell loading position, and the tool supply mechanism is configured to sequentially convey and adjust a plurality of tools to the first position or the second position;

[0036] The transport mechanism is configured to transport the battery cells located at the battery cell loading position and the tooling located at the loading station to the conveyor line, so that each battery cell is pressed against the rear half of the solder ribbon group, and the tooling presses the front half of the solder ribbon group against the upper surface of the previous battery cell.

[0037] By adopting the above technical solution, the tooling supply mechanism adjusts the tooling to be transported to the first position or the second position according to the battery string position corresponding to the tooling to be transported, and the transport mechanism transports the tooling and battery cells at the loading station to the conveyor line, and adjusts the placement position of the tooling on the conveyor line according to whether the spacing between the battery cell to be placed and the last battery cell on the conveyor line is a string spacing or a cell spacing, thereby realizing the string welding machine to adjust the spacing between adjacent battery cells.

[0038] Optionally, the conveying assembly includes a first driving module and two parallel first conveyor belts, the first driving module is configured to drive the two first conveyor belts to move synchronously, and the upper surfaces of the two first conveyor belts form a conveying surface configured to carry and convey the tooling;

[0039] The battery cell supply mechanism includes a second drive module and a second conveyor belt, one end of the second conveyor belt extends into the gap between the two first conveyor belts, and the second drive module is configured to drive the second conveyor belt to move along the first direction to transport the battery cells to the battery cell loading position.

[0040] By adopting the above technical solution, the gap between two adjacent battery cells on the conveyor line is very small, so the distance between the battery cells to be transported and the tooling at the loading station also needs to be very small. The second conveyor belt of the battery cell supply mechanism and the two first conveyor belts of the tooling supply mechanism are arranged in an staggered manner, so that the conveying path of the battery cells is connected to the conveying path of the tooling, so that the battery cells to be transported and the tooling at the loading station can maintain a very small distance.

[0041] Optionally, the string welding machine also includes a battery cell detection mechanism, which includes a detector and a light source. The light source is located below the second conveyor belt at the battery cell upper material level. The light emitted by the light source passes through the second conveyor belt and illuminates the battery cell at the battery cell upper material level. The detector is located above the battery cell upper material level. The detector is configured to photograph the battery cell at the battery cell upper material level illuminated by the light source and the tooling at the first position or the second position.

[0042] By adopting the above technical solution, after the cell supply mechanism transports the cell to the cell loading position, the light source will illuminate the cell at the cell loading position, the detector will capture the illuminated cell, and the processor will compare the image of the illuminated cell with the image of the good cell to determine whether the illuminated cell is qualified. If it is unqualified, it can be removed in time to avoid unqualified battery strings produced subsequently. By reading the image of the illuminated cell with the processor, it can also be determined whether the spacing between the cell and the adjacent tooling is within the predetermined range of the cell spacing or string spacing. If the spacing value does not meet the predetermined value, the position of the limit component can be adjusted by driving the adjustment component through the control module to adjust the position of the limit component so that the spacing between the tooling and the cell is within the predetermined range of the cell spacing or string spacing.

[0043] Optionally, the cell detection mechanism is further configured to detect whether the cell at the upper material position of the cell is broken, and the stringer further includes a first material box and a second material box, wherein:

[0044] The first material box is arranged at any empty position within the moving range of the conveying mechanism, and the conveying mechanism is further configured to convey the broken battery cells located at the upper material level of the battery cells into the first material box;

[0045] The second material box is arranged on the adjustment component, and the second material box is located in the gap between the two first conveyor belts and is lower than the conveying surface of the second conveyor belt. The battery cell supply mechanism is also configured to transport the battery cell fragments remaining on the second conveyor belt into the second material box.

[0046] The battery cells may also be broken during the transportation process, forming large pieces of broken battery cells and several small fragments. At this time, the large pieces of broken battery cells can be sent to the first material box through the conveying mechanism, and the several small fragments will eventually fall into the second material box on the adjustment component as the second conveyor belt moves. There is no need to manually handle the broken battery cells, which improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 Schematic diagram of the structure of the tooling involved in the tooling supply mechanism in this embodiment;

[0048] Figure 2 This is an overall view of the tool supply mechanism in this embodiment;

[0049] Figure 3 (a) is a schematic diagram of the position of the tooling limited by the limiting assembly in this embodiment when it is in the first position;

[0050] Figure 3 (b) is a schematic diagram of the position of the tooling limited by the limiting assembly in this embodiment when it is in the second position;

[0051] Figure 4 Schematic diagram of the specific structure of the limit assembly in this embodiment;

[0052] Figure 5 Schematic diagram of the coordination of the limiting assembly and the adjusting assembly in this embodiment;

[0053] Figure 6 Schematic diagram of the whole string welding machine in this embodiment;

[0054] Figure 7 Schematic diagram of the positional relationship between the cell supply mechanism and the tooling supply mechanism in this embodiment;

[0055] Figure 8 This is a detailed structural view of the transport mechanism in this embodiment.

[0056] Description of reference numerals:

[0057] 1. Tool supply organization;

[0058] 11. Conveying assembly; 111. First driving module; 112. First conveyor belt;

[0059] 12. Limiting assembly; 121. Base plate; 122. Stopper; 123. First sensor; 124. Elastic member; 125. Guide rod; 126. Second driving member; 127. Press block; 128. Second sensor; 1281. Magnet; 129. Auxiliary pad; 120. Anti-hanging member; 71. Regularizing wheel;

[0060] 13. Adjustment assembly; 131. Base; 132. First driving member; 133. Sliding seat;

[0061] 2. Cell supply mechanism; 21. Second drive module; 22. Second conveyor belt;

[0062] 3. Handling mechanism; 31. Six-axis robot; 32. Cell handling assembly; 33. Tooling handling assembly;

[0063] 41. Light source; 42. Second material box;

[0064] 5. Tooling; 51. Tooling body; 52. Support block; 53. Press needle; 54. Elastic connector;

[0065] 6. Battery cells;

[0066] A, first position; B, second position; X, first direction. DETAILED DESCRIPTION

[0067] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0068] The tooling 5 referred to by the tooling supply mechanism 1 in the embodiment of the present application is as follows: Figure 1 As shown, the tooling 5 includes a tooling body 51, two support blocks 52, a number of pressure pins 53 and an elastic connector 54. The tooling body 51 is a rectangular parallelepiped as a whole and is hollowed out into a "well" shape. The number of pressure pins 53 are elastically mounted on the tooling body 51 through the elastic connector 54. The number of pressure pins 53 are arranged in a matrix on the tooling body 51. Each column of pressure pins 53 along the width direction of the tooling body 51 is used to elastically press the front half of a welding strip onto the upper surface of the battery cell 6. The two support blocks 52 are respectively located at both ends of the length direction of the tooling body 51. The support blocks 52 are used to suspend the tooling body 51 above the battery cell 6 and the welding strip to prevent the weight of the tooling 5 from being evenly pressed on the battery cell 6, so that the battery cell 6 is crushed.

[0069] The tooling 5 is also a conventional technical means in this field. Its appearance may vary, but its main function is to press the battery cell 6 and the welding ribbon together, so that the subsequent fixing mechanism can stably fix the battery cell 6 and the welding ribbon together.

[0070] like Figure 2 As shown, the tool supply mechanism 1 in the embodiment of the present application includes a conveying component 11, a limiting component 12 and an adjustment component 13, wherein:

[0071] The conveying assembly 11 is provided with a conveying surface configured to carry and convey the tooling 5. The conveying assembly 11 is configured to convey a plurality of toolings 5 ​​to the loading station in sequence along the first direction X. The loading station includes a first position A and a second position B. The distance between the first position A and the battery cell loading position is the cell spacing, and the distance between the second position B and the battery cell loading position is the string spacing. The first position A and the second position B are specifically referred to Figure 3 (a) and Figure 3 (b), by Figure 3 (a) and Figure 3 (b) It can be clearly seen from the comparison that the distance between the tooling 5 at the first position A and the battery cell 6 at the battery cell loading position is smaller than the distance between the tooling 5 at the second position B and the battery cell 6 at the battery cell loading position.

[0072] The limiting assembly 12 is located at the loading station. The limiting assembly 12 includes a limiting member located on the conveying surface of the conveying assembly 11. The limiting member is configured to allow the tooling 5 to be transported to stay at the loading station.

[0073] The adjustment component 13 is configured to drive the limit member and the tooling 5 limited by the limit member to move back and forth along the first direction relative to the conveying surface of the conveying component 11, so that the limit member and the tooling 5 limited by the limit member stay at the second position B of the loading station, and the first direction X is parallel to the length direction of the conveying surface of the conveying component 11.

[0074] The tooling 5 transported to the loading station is blocked by the limiter, causing the tooling 5 to stay at the loading station and unable to continue to move with the conveying component 11. If the spacing between the battery cell 6 to be pressed by the tooling 5 to be transported and the next battery cell 6 is the cell spacing, the adjustment component 13 moves the tooling 5 and the limiter so that the tooling is in the first position A. The transport mechanism 3 directly transports the tooling 5 and the battery cell 6 to be transported in the first position to the conveyor line, and makes the tooling 5 just located on the battery cell 6 to be pressed. The spacing between the battery cell transported together with the tooling and the battery cell pressed by the tooling will be adjusted to just the cell spacing. If the spacing between the battery cell 6 to be pressed by the tooling 5 to be transported and the next battery cell 6 is the string spacing, the adjustment component 13 moves the tooling 5 and the limiter so that the tooling 5 is in the second position B, and the transport mechanism 3 transports the tooling 5 and the battery cell 6 to be transported in the second position B to the conveyor line, and makes the tooling 5 just located on the battery cell 6 to be pressed. The spacing between the battery cell 6 transported together with the tooling 5 and the battery cell 6 pressed by the tooling 5 will be adjusted to the string spacing. Without improving other components of the stringing machine, the spacing between the battery cells 6 is quickly adjusted, thereby improving work efficiency.

[0075] like Figure 4 As shown, the limiting assembly 12 further includes a base plate 121, and the limiting member includes two blocks 122, which are flushly mounted on the base plate 121. The two blocks 122 are respectively positioned on opposite sides of the conveying assembly 11, and the blocking portions of the two blocks are positioned on the conveying surface of the conveying assembly 11. By providing the two blocks 122 on both sides of the conveying assembly 11, the blocking portions of the two blocks 122 can simultaneously block both ends of the tooling 5 on the conveying assembly 11, ensuring that the position of the tooling 5 is stable when limited, and will not deviate relative to the conveying surface of the conveying assembly 11, thereby improving the position accuracy of the automated conveying.

[0076] like Figure 4 As shown, the limit assembly 12 also includes two first sensors 123 installed on the substrate 121, and the two blocks 122 are respectively provided with elastic members 124 that penetrate the block 122 along the first direction X. The first end and the second end of the elastic member 124 along its own length direction respectively protrude from the block 122. When the tooling 5 abuts against the block 122, the first end of the elastic member 124 is compressed and the second end of the elastic member 124 enters the sensing area of ​​the first sensor 123 along the first direction X.

[0077] During the process of the conveying component 11 conveying the tooling 5 to the first position A along the first direction X, the tooling 5 will first abut against and push the first end of the elastic member 124. After being compressed, the elastic member 124 moves along the first direction X. When the tooling 5 moves to the position abutting against the stop block 122, the second end of the elastic member 124 enters the sensing area of ​​the first sensor 123. The first sensor 123 sends a signal to the control module, and the control module knows that the tooling 5 has moved to the first position A. At this time, the control module can control the conveying mechanism 3 to pick up the tooling 5 or the adjustment component 13 to drive the tooling 5 to move to the second position B. With the help of the first sensor 123, the control module can automatically and accurately arrange the work of each component.

[0078] It should be noted that the first sensor 123 in this embodiment can be an infrared sensor, a pressure sensor, or the like that can sense the position of the tooling 5, and the control module is also a PLC commonly used in this technical field. This application has clearly described the functions of the first sensor 123 and the control module, and those skilled in the art can easily implement the above functions, which will not be elaborated here.

[0079] like Figure 4 As shown, the limiting assembly 12 further includes two guide rods 125 mounted on the base plate 121. The two guide rods 125 extend along the first direction X. The first ends of the two guide rods 125 respectively abut a stopper 122. The spacing between the two guide rods 125 is greater than the dimension of the tooling 5 perpendicular to the first direction X. The second ends of the two guide rods 125 are provided with a sloped surface that gradually tilts outward from the conveying surface of the conveying assembly 11. By using the two guide rods 125, the position of the tooling 5 when it abuts the stopper 122 is further limited, the movement of the tooling 5 perpendicular to the first direction X is reduced, and the transport mechanism 3 facilitates automated pickup of the tooling 5.

[0080] like Figure 2 and Figure 4 As shown, the limiting assembly 12 further includes a second driving member 126 and a pressing block 127. The pressing block 127 is located outside the first guide rod 125. The second driving member 126 is configured to drive the pressing block 127 to slide horizontally in a direction perpendicular to the first direction X, so that the pressing block 127 cooperates with the second guide rod 125 to clamp the tooling 5 against the stop block 122 or release the tooling 5. When the conveying assembly 11 conveys the tooling 5 to be transported to the limiting assembly 12 and the tooling 5 to be transported abuts against the stop block 122, the control module receives a signal from the first sensor 123 and controls the second driving member 126 to push the pressing block 127 out and press the tooling 5, further limiting the position of the tooling 5 perpendicular to the first direction X, facilitating the automated and accurate picking up of the tooling 5 by the conveying mechanism 3.

[0081] like Figure 2 and Figure 4As shown, a second sensor 128 is provided on the second guide rod 125. The second sensor 128 is placed in a direction perpendicular to the first direction X. After the tooling 5 is pushed by the pressing block 127 and rests against the second guide rod 125, the tooling 5 enters the sensing area of ​​the second sensor 128. Once the tooling 5 enters the sensing area of ​​the second sensor 128, the second sensor 128 sends a signal to the control module, which then knows that the tooling 5 has been clamped by the pressing block 127. At this point, the control module can control the adjustment assembly 13 to drive the tooling 5 to move to the first position A or the second position B. With the help of the second sensor 128, the control module can automatically and accurately arrange the work of each component.

[0082] It should be noted that the second sensor 128 can also be an infrared sensor or a pressure sensor, etc., to sense the position of the tooling 5 .

[0083] like Figure 4 As shown, two magnets 1281 are provided on the abutment surface of the second guide rod 125, and the end of the tooling 5 closest to the abutment surface of the second guide rod 125 is made of ferromagnetic material. As the second driving member 126 drives the pressing block 127 to press the tooling 5 against the second guide rod 125, the two magnets 1281 magnetically pull the tooling 5, causing the end face of the tooling 5 to fit tightly against the second guide rod 125. This prevents the tooling 5 from being offset and stuck between the second guide rod 125 and the pressing block 127, which could cause the tooling 5 to be subsequently mispositioned and unable to be accurately picked up by the transport mechanism 3.

[0084] like Figure 4 As shown, the limiting assembly 12 also includes at least two regularizing wheels 71 mounted on the limiting member, and the at least two regularizing wheels 71 are located below the conveying surface of the conveying assembly 11. The adjustment assembly 13 is further configured to drive the limiting member to move back and forth along the first direction so that the at least two regularizing wheels 71 on the driven limiting member push against the battery cells at the upper material position of the battery cells. The adjustment assembly 13 first drives the limiting member and the regularizing wheels 71 to push against the battery cells at the upper material position of the battery cells to fix the position of the battery cells, and then moves the tooling to the first position A or the second position B to ensure that the spacing between the tooling and the battery cells is accurate, ensuring that the battery strings formed by the subsequent string assembly are neat.

[0085] like Figure 4 and Figure 5As shown, the limiting assembly 12 further includes two auxiliary pads 129, which are relatively located on either side of the conveying surface of the conveying assembly 11. The two auxiliary pads 129 extend along a first direction X, and the height of the supporting surfaces of the two auxiliary pads 129 gradually increases along the first direction X from below the conveying surface of the conveying assembly 11 to above the conveying surface of the conveying assembly 11. As the conveying assembly 11 drives the tooling 5 to move along the first direction X to the limiting assembly 12, the two auxiliary pads 129 lift the tooling 5 and separate it from the conveying surface of the conveying assembly 11. During the process of the tooling 5 being transported by the conveying assembly 11 to the limiting assembly 12, it will be lifted by the auxiliary pads 129. Subsequently, the adjustment assembly 13 drives the tooling 5 and the limiting assembly 12 to move to the first position A or the second position B. The tooling 5 will not wear out the conveying components of the conveying assembly 11 used to transport the tooling 5. The conveying components can be belts or conveyor belts, etc., to prevent the conveying components of the conveying assembly 11 from malfunctioning after long-term operation.

[0086] It should be noted that if Figure 3 As shown, in this embodiment, the two guide rods 125 and the two auxiliary pads 129 are aligned in the vertical direction. Therefore, when the conveying assembly 11 conveys the tooling 5 along the first direction X to the guide rods 125, as the tooling 5 continues to move along the first direction X following the conveying assembly 11, the support blocks 52 at both ends of the length direction of the tooling 5 are first guided and regularized by the guide rods 125, and then the two support blocks 52 of the tooling 5 are gradually raised by the auxiliary pads 129.

[0087] like Figure 4 and Figure 5 As shown, the limiting assembly 12 further includes an anti-hanging member 120, which is located above the conveying surface of the conveying assembly 11. The distance between the anti-hanging member 120 and the conveying surface of the conveying assembly 11 is greater than the thickness of the tooling 5, and the distance between the anti-hanging member 120 and the limiting member in the first direction X is greater than the size of the tooling 5 along the first direction X. The conveying assembly 11 sequentially conveys multiple toolings 5 ​​to the loading station. When the first tooling 5 is at the limiting assembly, if the conveying assembly 11 continues to convey the tooling 5, the second tooling 5 is likely to be attached to the first tooling 5. Due to the anti-hanging member 120 provided above the conveying surface of the conveying assembly 11, when the subsequent transport mechanism 3 lifts the first tooling 5, the second tooling 5 attached to the first tooling 5 is limited by the anti-hanging member 120, preventing the second tooling 5 from rising along with the first tooling 5.

[0088] like Figure 4 and Figure 5As shown, the adjustment assembly 13 is located below the conveying surface of the conveying assembly 11. The adjustment assembly 13 includes a base 131, a first driving member 132, and a sliding seat 133. The first driving member 132 is mounted on the base 131, and the sliding seat 133 is slidably mounted on the base 131 along the first direction X. The sliding seat 133 is fixedly connected to the driving end of the first driving member 132. The limit assembly 12 is mounted on the sliding seat 133, and the first driving member 132 is configured to drive the sliding seat 133 to slide back and forth along the first direction X. The adjustment assembly 13 is installed below the conveying surface of the conveying assembly 11 and will not affect the normal operation of the conveying assembly 11.

[0089] Based on the above, the specific working process of the tool supply mechanism 1 in this embodiment is as follows:

[0090] The conveying component 11 conveys the tooling 5 along the first direction X to the limiting component 12 at the feeding station. When the tooling 5 passes through the two guide rods 125 and the auxiliary pad rod 129, the tooling 5 is confined between the two guide rods 125. At the same time, the tooling 5 is gradually lifted up by the two auxiliary pad rods 129 until it leaves the conveying surface of the conveying component 11. At this time, the tooling 5 will just rest against the two blocks 122, and the first sensor 123 is triggered. The control module drives the second driving member 126 to drive the pressure block 127 to press against the tooling 5, so that the tooling 5 is clamped by the pressure block 127 and the second guide rod 125. The tooling 5 triggers the second sensor 128, indicating that the tooling 5 has been fixed on the limiting component 12 and will not continue to move with the conveying component 11.

[0091] The adjusting assembly 13 first moves the tooling 5 and the limiting member close to and pushes the battery cell at the upper material position of the battery cell, and uses the regularizing wheel 71 to regularize the position of the lower battery cell.

[0092] According to the current battery string assembly process, if the spacing between the battery cell 6 to be pressed by the tooling 5 to be transported and the next battery cell 6 is the cell spacing, the adjustment component 13 moves the tooling 5 and the limiter so that the tooling is in the first position A. The transport mechanism 3 directly transports the tooling 5 and the battery cell 6 to be transported in the first position to the conveyor line, and makes the tooling 5 just located on the battery cell 6 to be pressed. The spacing between the battery cell transported together with the tooling and the battery cell pressed by the tooling will be adjusted to the cell spacing.

[0093] If the spacing between the battery cell 6 to be pressed by the tooling 5 to be transported and the next battery cell 6 is the string spacing, the adjustment component 13 moves the tooling 5 and the limiter to move the tooling 5 to the second position B, and the second drive member 126 resets the pressing block 127 to release the restriction on the tooling 5. The transport mechanism 3 transports the tooling 5 and the battery cell 6 to be transported in the second position B to the conveyor line, and makes the tooling 5 just located on the battery cell 6 to be pressed. The spacing between the battery cell 6 transported together with the tooling 5 and the battery cell 6 pressed by the tooling 5 will be just adjusted to the string spacing.

[0094] It should be noted that due to the presence of the regularizing wheel 71, the limit assembly 12 also needs to regularize the battery cells, so there are multiple options for the initial position of the limit assembly 12 at the loading station. The initial position of the limit assembly 12 can be a third position different from the first position A and the second position B. Each time the tool 5 is fixed by the limit assembly 12, the tool 5 is in the third position. When the adjustment assembly 13 drives the regularizing wheel 71 of the limit assembly 12 to push the battery cells once, the adjustment assembly 13 moves the limit assembly 12 and the tool 5 to the first position A or the second position B according to the situation. After the tool 5 is removed, the adjustment assembly 13 moves the limit assembly 12 back to the third position. The initial position of the limit assembly 12 can also be the first position A or the second position B. Each time the tool 5 on the limit assembly 12 is removed, the limit assembly 12 will return to the initial position. In addition, each time the tooling 5 is removed from the limiting assembly 12 , the limiting assembly 12 may stay at the first position A or the second position B and directly receive the next tooling 5 , thereby reducing the operating frequency of the limiting assembly 12 and the adjusting assembly 13 .

[0095] like Figure 6 As shown, the present application also provides a stringer, which includes a tool supply mechanism 1, a solder ribbon supply mechanism, a battery cell supply mechanism 2, a transport mechanism 3 and a conveyor line, wherein:

[0096] The welding ribbon supply mechanism is configured to pull a plurality of welding ribbon groups onto the conveyor line in sequence;

[0097] The cell supply mechanism 2 is configured to sequentially convey a plurality of cell sheets 6 to the cell loading position, and the tooling supply mechanism 1 is configured to sequentially convey and adjust a plurality of tooling 5 to the first position A or the second position B;

[0098] The transport mechanism 3 is configured to transport the battery cells 6 located at the battery cell loading position and the tooling 5 located at the loading station to the conveyor line, so that each battery cell 6 is pressed against the rear half of the solder ribbon group, and the tooling 5 presses the front half of the solder ribbon group against the upper surface of the previous battery cell 6.

[0099] The tooling supply mechanism 1 adjusts the tooling 5 to be transported to the first position A or the second position B according to the battery string position corresponding to the tooling 5 to be transported. The transport mechanism 3 transports the tooling 5 at the loading station and the battery cell 6 at the battery cell loading position to the conveyor line, and adjusts the placement position of the tooling 5 on the conveyor line according to whether the spacing between the battery cell 6 to be placed and the last battery cell 6 on the conveyor line is a string spacing or a cell spacing, so as to realize the string welding machine to adjust the spacing between adjacent battery cells 6.

[0100] like Figure 2 As shown, the conveyor assembly 11 includes a first drive module 111 and two parallel first conveyor belts 112. The first drive module 111 is configured to drive the two first conveyor belts 112 to move synchronously. The upper surfaces of the two first conveyor belts 112 form a conveying surface that supports and conveys the tooling 5. The two first conveyor belts 112 are narrow belts, each supported by a rotatable roller. The first drive module 111 drives the rollers to rotate, thereby driving the two first conveyor belts 112 to rotate synchronously, thereby conveying the tooling 5.

[0101] like Figure 7 As shown, the cell supply mechanism 2 includes a second drive module 21 and a second conveyor belt 22. The second conveyor belt 22 is a single wide belt, one end of which extends into the gap between the two first conveyor belts 112. The second drive module 21 is configured to drive the second conveyor belt 22 to move in a first direction to transport the cell 6 to the cell loading position. The cell supply mechanism 2 also utilizes the operating principle of conventional conveyor belts in the art, which is a conventional technical means in the art and will not be described in detail here.

[0102] The gap between two adjacent battery cells 6 in the battery string on the conveyor line is very small, so the distance between the battery cells 6 to be transported and the tooling 5 at the loading station also needs to be very small. The second conveyor belt 22 of the battery cell supply mechanism 2 and the two first conveyor belts 112 of the tooling supply mechanism 1 are arranged in an staggered manner, so that the conveying path of the battery cells 6 is connected to the conveying path of the tooling 5, so that the battery cells 6 to be transported and the tooling 5 at the loading station can maintain a very small distance.

[0103] It should be noted that the conveying surface of the first conveyor belt 112 and the conveying surface of the second conveyor belt 22 are not in the same plane. The conveying surface of the second conveyor belt 22 is lower than the conveying surface of the first conveyor belt 112 to facilitate the aforementioned aligning wheel 71 to push the battery cell 6.

[0104] like Figure 8As shown, the conveying mechanism 3 includes a six-axis robot 31, a battery cell conveying assembly 32 and a tooling conveying assembly 33. The battery cell conveying assembly 32 and the tooling conveying assembly 33 are both installed at the mobile end of the six-axis robot 31. The battery cell conveying assembly 32 sucks the battery cell 6 through a number of suction cups, and the tooling conveying assembly 33 sucks the metal support block 52 of the tooling 5 through an electromagnet assembly. The six-axis robot 31 is configured to move the battery cell conveying assembly 32 and the tooling conveying assembly 33 back and forth between the loading station and the conveyor line to convey the battery cell 6 and the tooling 5 to the conveyor line.

[0105] like Figure 6 and Figure 7 As shown, the string welding machine also includes a cell detection mechanism, which includes a detector and a light source 41. The light source 41 is located below the second conveyor belt 22 at the cell upper material position. The light emitted by the light source 41 passes through the second conveyor belt 22 and illuminates the cell 6 at the cell upper material position. The detector is located above the cell upper material position. The detector is configured to photograph the cell 6 at the cell upper material position and the tooling 5 at the first position A or the second position B that are illuminated by the light source 41.

[0106] After the battery cell supply mechanism 2 transports the battery cell 6 to the battery cell loading position, the light source 41 will illuminate the battery cell 6 at the battery cell loading position, and the detector will photograph the illuminated battery cell 6. With the help of the processor, the image of the illuminated battery cell 6 is compared with the image of the good battery cell 6 to determine whether the illuminated battery cell 6 is qualified. If it is unqualified, it can be removed in time to avoid unqualified battery strings produced subsequently.

[0107] In addition, by using the processor to read the image of the illuminated battery cell 6 and the tooling 5, it is also possible to determine whether the spacing between the battery cell 6 and the adjacent tooling 5 is within the predetermined range of the cell spacing or string spacing. If the spacing value does not meet the predetermined value, the position of the limit component 12 can be adjusted by driving the adjustment component 13 through the control module to make the spacing between the tooling 5 and the battery cell 6 within the predetermined range of the cell spacing or string spacing.

[0108] like Figure 6 and Figure 7 As shown, the cell detection mechanism is further configured to detect whether the cell 6 at the upper material position of the cell is broken. The stringer further includes a first material box (not shown in the figure) and a second material box 42, wherein:

[0109] The first material box is set at any empty position within the moving range of the conveying mechanism 3, and the conveying mechanism 3 is further configured to convey the broken battery cells 6 located at the upper material position of the battery cells into the first material box;

[0110] The second material box 42 is set on the adjustment component 13. The second material box 42 is located in the gap between the two first conveyor belts 11 and is lower than the conveying surface of the second conveyor belt 22. The battery cell supply mechanism 2 is also configured to transport the battery cell fragments remaining on the second conveyor belt 22 into the second material box 42.

[0111] The battery cells 6 may also be broken during the transportation process, forming large pieces of damaged battery cells and several small fragments. At this time, the large pieces of damaged battery cells can be delivered to the first material box through the conveying mechanism 3, and the several small fragments will eventually fall into the second material box 42 on the adjustment component 13 as the second conveyor belt 22 moves. There is no need to manually handle the broken battery cells, which improves work efficiency.

[0112] It should be noted that the material box 42 is made into a shell and installed on the sliding seat 133, shielding the driving end of the first driving member 132 and the base plate 121, which can also play a dust-proof role and reasonably utilize space.

[0113] Based on the above description, the specific working process of the string welding machine provided in this embodiment is as follows:

[0114] The cell supply mechanism 2 transports the cell 6 to the cell loading position;

[0115] The conveying component 11 conveys the tooling 5 along the first direction X to the limiting component 12 of the feeding station. When the tooling 5 passes through the two guide rods 125 and the auxiliary pad rod 129, the tooling 5 is confined between the two guide rods 125. At the same time, the tooling 5 is gradually lifted up by the two auxiliary pad rods 129 until it leaves the conveying surface of the conveying component 11. At this time, the tooling 5 will just rest against the two blocks 122, and the first sensor 123 is triggered. The control module drives the second driving member 126 to drive the pressure block 127 to press against the tooling 5, so that the tooling 5 is clamped by the pressure block 127 and the second guide rod 125. The tooling 5 triggers the second sensor 128, indicating that the tooling 5 has been fixed on the limiting component 12 and will not continue to move with the conveying component 11.

[0116] The adjusting assembly 13 first moves the tooling 5 and the limiting member close to and pushes the battery cell 6 at the upper position of the battery cell, and uses the regularizing wheel 71 to regularize the position of the lower battery cell 6.

[0117] According to the current battery string assembly process, if the spacing between the battery cell 6 to be pressed by the tool 5 to be transported and the next battery cell 6 is the cell spacing, the adjustment component 13 moves the tool 5 and the limiter so that the tool is in the first position A; if the spacing between the battery cell 6 to be pressed by the tool 5 to be transported and the next battery cell 6 is the string spacing, the adjustment component 13 moves the tool 5 and the limiter so that the tool 5 is moved to the second position B.

[0118] The second driving member 126 resets the pressing block 127 and releases the restriction on the tooling 5. If the battery cell 6 is qualified, the transport mechanism 3 directly transports the tooling 5 and the battery cell 6 to be transported in the first position to the conveyor line, and makes the tooling 5 just located on the battery cell 6 to be pressed. The spacing between the battery cell transported together with the tooling and the battery cell pressed by the tooling will be adjusted to the cell spacing.

[0119] The light source 41 illuminates the battery cell 6 at the upper material position of the battery cell and the part of the tooling 5 clamped by the limiting assembly 12 close to the battery cell 6. The detector photographs the illuminated battery cell 6 and the tooling 5, and uses the processor to compare the image of the illuminated battery cell 6 with the image of the good battery cell 6 to determine whether the illuminated battery cell 6 is qualified.

[0120] If the battery cell 6 is qualified, the processor will then determine whether the spacing between the tooling 5 and the battery cell 6 is within the predetermined range of the cell spacing or string spacing. If the spacing value does not meet the predetermined value, the position of the limit component 12 can be adjusted by the control module driving the adjustment component 13 to make the spacing between the tooling 5 and the battery cell 6 within the predetermined range of the cell spacing or string spacing.

[0121] Subsequently, the second driving member 126 resets the pressing block 127, releasing the restriction on the tooling 5, and the conveying mechanism 3 conveys the tooling 5 and the battery cells 6 to be transported in the first position A or the second position B to the conveyor line, and places the tooling 5 exactly on the battery cells 6 to be pressed. The spacing between the battery cells 6 transported together with the tooling 5 and the battery cells 6 pressed by the tooling 5 will be adjusted to the cell spacing or string spacing.

[0122] If the inspected cell 6 fails, the cell transport assembly 32 of the transport mechanism 3 picks up the failed cell 6 and places it into the corresponding magazine. The cell supply mechanism 2 then delivers the next cell 6 to the upper cell position. The aligning wheels 71 of the position limiting assembly 12 push against the cell 6 once, and the cell inspection mechanism then inspects the cell 6 again.

[0123] The above description of the present application is sufficiently detailed and has certain particularities. Those skilled in the art should understand that the descriptions in the embodiments are merely exemplary, and that 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, not by the above description in the embodiments. Furthermore, the embodiments mentioned in the present application are not limited to being implemented individually, and some embodiments can also be implemented in combination.

Claims

1. A tool supply mechanism, characterized in that: The tool supply mechanism includes a conveying component, a limiting component and an adjustment component, wherein: The conveying assembly is provided with a conveying surface configured to carry and convey tooling, and the conveying assembly is configured to sequentially convey a plurality of tooling to a loading station along a first direction, wherein the first direction is parallel to the length direction of the conveying surface of the conveying assembly, and the loading station includes a first position and a second position, wherein the spacing between the first position and the battery cell loading position is the cell spacing, and the spacing between the second position and the battery cell loading position is the string spacing; The limiting assembly is located at the loading station, and the limiting assembly includes a limiting member located on the conveying surface of the conveying assembly, and the limiting member is configured to make the tooling conveyed by the conveying assembly stay at the loading station; The limiting assembly is arranged at the driving end of the adjusting assembly, and the adjusting assembly is at least configured to drive the limiting member and the tooling restricted by the limiting member to move back and forth along the first direction, so that the driven limiting member and the tooling stay at the first position or the second position of the loading station.

2. The tool supply mechanism according to claim 1, characterized in that: The limiting assembly also includes a base plate, and the limiting member includes two blocks, which are flush mounted on the base plate. The two blocks are respectively located on two sides of the conveying assembly, and the blocking parts of the two blocks are located on the conveying surface of the conveying assembly.

3. The tool supply mechanism according to claim 2, characterized in that: The limit assembly also includes two first sensors installed on the substrate, and elastic members are respectively provided in the two blocks and penetrate the blocks along the first direction. The first end and the second end of the elastic member along its own length direction respectively protrude from the blocks. When the tooling abuts against the blocks, the first end of the elastic member is compressed and the second end of the elastic member enters the sensing area of ​​the first sensor along the first direction.

4. The tool supply mechanism according to claim 2, characterized in that: The limiting assembly also includes two guide rods installed on the base plate, the two guide rods extend along the first direction, the first ends of the two guide rods respectively abut against one of the stop blocks, the spacing between the two guide rods is greater than the dimension of the tooling perpendicular to the first direction, and the second ends of the two guide rods are provided with a slope surface that gradually tilts outward from the conveying surface of the conveying assembly.

5. The tool supply mechanism according to claim 4, characterized in that: The limiting assembly also includes a second driving member and a pressure block, wherein the pressure block is located on the outside of the first guide rod, and the second driving member is configured to drive the pressure block to slide horizontally in a direction perpendicular to the first direction, so that the pressure block cooperates with the second guide rod to clamp the tooling against the stop block or release the tooling.

6. The tool supply mechanism according to claim 5, characterized in that: A second sensor is provided on the second guide rod and is placed in a direction perpendicular to the first direction. After the tooling is pushed by the pressing block and abuts against the second guide rod, the tooling enters the sensing area of ​​the second sensor.

7. The tool supply mechanism according to claim 5, characterized in that: Two magnets are arranged on the abutting surface of the second guide rod, and one end of the tooling close to the abutting surface of the second guide rod is made of ferromagnetic material.

8. The tool supply mechanism according to claim 1, characterized in that: The limiting assembly also includes at least two aligning wheels installed on the limiting member, and the at least two aligning wheels are located below the conveying surface of the conveying assembly. The adjustment assembly is also configured to drive the limiting member to move back and forth along the first direction so that the at least two aligning wheels on the limiting member are driven to push the battery cells at the upper material level of the battery cells.

9. The tool supply mechanism according to claim 1, characterized in that: The limiting assembly further comprises two auxiliary pads, the two auxiliary pads being located oppositely on either side of the conveying surface of the conveying assembly, the two auxiliary pads extending along the first direction, and the heights of the supporting surfaces of the two auxiliary pads gradually increasing along the first direction from below the conveying surface of the conveying assembly to above the conveying surface of the conveying assembly; As the conveying assembly drives the tooling to move along the first direction to the position limiting assembly, the two auxiliary pad rods lift the tooling and separate it from the conveying surface of the conveying assembly.

10. The tool supply mechanism according to claim 1, characterized in that: The limiting component also includes an anti-hanging part, which is located above the conveying surface of the conveying component. The distance between the anti-hanging part and the conveying surface of the conveying component is greater than the thickness of the tooling. The distance between the anti-hanging part and the limiting part in the first direction is greater than the size of the tooling along the first direction.

11. The tool supply mechanism according to claim 1, characterized in that: The adjustment assembly is located below the conveying surface of the conveying assembly, and the adjustment assembly includes a base, a first driving member and a sliding seat. The first driving member is installed on the base, and the sliding seat is slidably installed on the base along a first direction. The sliding seat is fixedly connected to the driving end of the first driving member. The limiting assembly is installed on the sliding seat, and the first driving member is configured to drive the sliding seat to slide back and forth along the first direction.

12. A string welding machine, characterized in that: The stringer includes a welding ribbon supply mechanism, a battery cell supply mechanism, a tool supply mechanism according to any one of claims 1 to 11, a transport mechanism, and a conveyor line, wherein: The welding ribbon supply mechanism is configured to pull a plurality of welding ribbon groups onto the conveyor line in sequence; The cell supply mechanism is configured to sequentially convey a plurality of cell sheets to the cell loading position, and the tool supply mechanism is configured to sequentially convey and adjust a plurality of tools to the first position or the second position; The transport mechanism is configured to transport the battery cells located at the battery cell loading position and the tooling located at the loading station to the conveyor line, so that each battery cell is pressed against the rear half of the solder ribbon group, and the tooling presses the front half of the solder ribbon group against the upper surface of the previous battery cell.

13. The stringer according to claim 12, characterized in that: The conveying assembly includes a first driving module and two parallel first conveyor belts, wherein the first driving module is configured to drive the two first conveyor belts to move synchronously, and the upper surfaces of the two first conveyor belts form a conveying surface configured to carry and convey the tooling; The battery cell supply mechanism includes a second drive module and a second conveyor belt, one end of the second conveyor belt extends into the gap between the two first conveyor belts, and the second drive module is configured to drive the second conveyor belt to move along the first direction to transport the battery cells to the battery cell loading position.

14. The stringer according to claim 13, characterized in that The stringer also includes a cell detection mechanism, which includes a detector and a light source. The light source is located below the second conveyor belt at the cell upper material level. The light emitted by the light source passes through the second conveyor belt and illuminates the cell at the cell upper material level. The detector is located above the cell upper material level. The detector is configured to photograph the cell at the cell upper material level illuminated by the light source and the tooling at the first position or the second position.

15. The stringer according to claim 14, characterized in that The cell detection mechanism is further configured to detect whether the cell at the upper material position of the cell is broken. The stringer further includes a first material box and a second material box, wherein: The first material box is arranged at any empty position within the moving range of the conveying mechanism, and the conveying mechanism is further configured to convey the broken battery cells located at the upper material level of the battery cells into the first material box; The second material box is arranged on the adjustment component, and the second material box is located in the gap between the two first conveyor belts and is lower than the conveying surface of the second conveyor belt. The battery cell supply mechanism is also configured to transport the battery cell fragments remaining on the second conveyor belt into the second material box.

Images