Conveying system for automated production lines and welding-milling production line

Abstract

The utility model relates to workpiece processing technical field, concretely is conveying system and welding milling production line for automation production line, the utility model discloses conveying line and the carrier with pneumatic and electric clamping module, the lateral wall of carrier is fixed with the gas -electrical connector of connecting pneumatic and electric clamping module all pneumatic and electric connection end, the positioning assembly of positioning carrier is all set up to the processing station, the feeding station and the discharging station on conveying line, and the corresponding station is all set up with the gas -electricity supply connector of connecting gas source and power, and this gas -electricity supply connector is driven by power source and can be connected with the gas -electrical connector of the carrier positioned at the corresponding station. The utility model guarantees the simplification of carrier, and can also guarantee the stable operation of carrier on conveying line for a long time.

Description

Technical Field

[0001] This utility model relates to the field of workpiece processing technology, specifically to a conveying system for automated production lines and a welding and milling production line. Background Technology

[0002] In current automated production systems, especially in automated production lines where workpieces need to be clamped and fixed, such as welding, milling, grinding, or assembly lines, the conveyor system generally adopts a method where the workpiece or product is pre-fixed on a carrier, and then the carrier carrying the workpiece is transferred from the loading station to the processing station for operation, and finally delivered to the unloading station for unloading. This type of conveyor system for automated production lines is described in both Chinese Patent Publication No. CN107717204A (titled "Automatic Production Line for Automatic Pairing and Welding of Battery Cell Tabs") and Chinese Patent Publication No. CN103338430A (titled "Automatic Production Line for Loudspeakers").

[0003] Currently, there are two main types of workpiece clamping methods for carriers: purely mechanical clamping and automated clamping via electrical equipment. Purely mechanical clamping typically relies on manual operation during loading and unloading, making it difficult to adapt to highly automated production cycles, and is therefore being phased out. In contrast, automated clamping based on electrical equipment better meets the needs of modern automated production. However, this method faces a significant challenge in practical applications: the frequent movement of the carrier on the conveyor line can easily lead to entanglement between the electrical wiring and the conveyor line, affecting the stable operation of the system. While integrating independent power and air supply into the carrier can avoid wiring issues in actual implementation, this increases the complexity and weight of the carrier system and makes it difficult to support long-term continuous operation, thus requiring a solution. Utility Model Content

[0004] In order to avoid and overcome the technical problems existing in the prior art, this utility model provides a conveying system and a welding and milling production line for automated production lines, which simplifies the carrier while ensuring the stable operation of the carrier on the conveying line for a long time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An automated production line conveying system includes a conveyor line and a carrier equipped with a pneumatic-electric clamping module. The side wall of the carrier is fixed with a pneumatic-electric connector that connects all the pneumatic-electric connection ends of the pneumatic-electric clamping module. The processing station, loading station and unloading station on the conveyor line are all equipped with positioning components of the positioning carrier, and each station is equipped with a pneumatic-electric supply connector that connects to a pneumatic source and a power source. The pneumatic-electric supply connector is driven by a power source and can be connected to the pneumatic-electric connector of the carrier positioned at the corresponding station.

[0006] As a further embodiment of this utility model: the positioning component includes a positioning stop component movable to the conveying path of the conveyor line, which stops the carrier from moving forward at the corresponding workstation; the positioning component also includes a lifting positioning part for lifting and positioning the vertical height of the carrier, and an insertion positioning part that forms a vertical insertion fit with the carrier to position the horizontal direction.

[0007] As a further embodiment of this utility model: each of the bottom ends of the vehicle has at least one positioning insertion hole, and the positioning component includes two lifting plates that can lift the two ends of the vehicle to position its vertical height. The lifting plates constitute the lifting positioning part. The lifting plates are fixed with positioning cone pins that are inserted into the corresponding positioning insertion holes of the vehicle to position its horizontal direction. The positioning cone pins constitute the insertion positioning part.

[0008] As a further improvement of this utility model: at least two sets of guide wheels are installed on both sides of the carrier, and the guide wheels are in rolling cooperation with the inner side wall of the conveying channel on the conveying line.

[0009] As a further embodiment of this utility model: the two lifting plates at the processing station are fixed to each other by a connecting plate, and a sliding support plate driven by a support plate cylinder is slidably fitted on the conveyor line. The sliding support plate is configured as two sets distributed at both ends of the connecting plate. When the connecting plate is in the rising state of the lifting carrier, the two sets of sliding support plates can slide horizontally to insert into the two ends of the connecting plate respectively.

[0010] As a further improvement of this utility model: the conveyor line is a roller conveyor, and the lifting plate is located at the interval between adjacent rollers.

[0011] As a further embodiment of this utility model: the conveyor line includes a double-layer conveyor mechanism, and the conveying directions of the two layers of conveyor units are opposite. The two ends of the double-layer conveyor mechanism conveyor units are respectively provided with a feeding mechanism and a discharging mechanism. Both the feeding mechanism and the discharging mechanism include a conveying part that can reciprocate at the same end of the two layers of conveyor units.

[0012] As a further embodiment of this utility model: the conveying parts of the feeding mechanism and the unloading mechanism are both lifting roller conveyors, and the feeding mechanism and the unloading mechanism also include lifting components that drive the corresponding lifting roller conveyors to rise and fall. The feeding station and the unloading station are respectively located on the lifting roller conveyors of the feeding mechanism and the unloading mechanism.

[0013] As a further embodiment of this utility model: the two conveying units of the double-layer conveying mechanism are a working roller conveyor located on the upper layer and a recycling roller conveyor located on the lower layer, and the processing station is located on the working roller conveyor.

[0014] A welding and milling production line, which is applied to the conveying system of the automated production line, includes a friction stir welding device and a milling device arranged sequentially along the conveying direction of the conveying line.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. All ends of the carrier requiring electrical and pneumatic connections are integrated into a single pneumatic power connector. At key workstations along the conveyor line, a power-driven pneumatic-electric supply connector is installed, capable of connecting to the corresponding pneumatic power connector. The other end of the pneumatic-electric supply connector connects to both the pneumatic and electrical sources, forming a bridge between the pneumatic power connector and these sources. This avoids the complexities of integrating power and pneumatic sources onto the carrier and prevents wiring tangles, ensuring robust hardware support for the efficient and stable operation of the automated production line over extended periods.

[0016] 2. When the carrier is transported to the target station by the conveyor line, the positioning stop assembly at that station stops on the conveyor path, bringing the carrier to a roughly correct position. This achieves coarse positioning of the carrier.

[0017] During the coarse positioning of the carrier, two lifting plates located at the bottom ends of the carrier are driven by lifting cylinders and simultaneously lifted upwards. These lifting plates lift the entire carrier off the upper surface of the conveyor line, achieving precise vertical positioning. Furthermore, each lifting plate is fixed with a positioning cone pin, and corresponding positioning holes are provided at both ends of the carrier's bottom. During the lifting process, the positioning cone pins are precisely inserted into the positioning holes. Utilizing the self-centering characteristic of the conical surface mating, the carrier's position in the X and Y directions in the horizontal plane is perfectly corrected and locked. This precise positioning of the carrier ensures stable connection between the pneumatic and electrical supply connectors and the electrical connection points.

[0018] 3. The guide wheels on the side walls of the carrier reduce the frictional resistance on both sides of the carrier during the conveyor line transport process.

[0019] 4. Two lifting plates at the machining station are rigidly connected to each other via a connecting plate. Once the connecting plate is lifted to its highest point by the lifting cylinder, indicating that the carrier is positioned, two sets of sliding support plates, driven by support plate cylinders, are installed on the conveyor frame. These two sets of sliding support plates slide horizontally from both ends of the connecting plate, inserting themselves below it or forming a groove with it, greatly enhancing the entire positioning system's ability to resist vertical and horizontal cutting forces and ensuring machining accuracy. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall assembly structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the production line structure in this utility model.

[0022] Figure 3 This is a schematic diagram of the feeding mechanism in this utility model.

[0023] Figure 4 This is a schematic diagram of the positioning component in this utility model.

[0024] Figure 5 This is a schematic diagram of the structure of the carrier in this utility model.

[0025] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point A.

[0026] Figure 7 This is a partial structural diagram of the interior of the vehicle in this utility model.

[0027] Figure 8 This is a three-dimensional bottom view of the vehicle in this utility model.

[0028] In the diagram: 20. Feeding mechanism; 30. Double-layer conveyor mechanism; 31. Working roller conveyor; 32. Recycling roller conveyor; 33. Sliding support plate; 331. Support plate cylinder; 40. Friction stir welding device; 50. Milling device; 60. Unloading mechanism; 61. Lifting roller conveyor; 62. Lifting assembly; 70. Carrier; 71. Fixture plate; 711. Guide wheel; 712. Positioning socket; 72. Positive electrode busbar positioning groove; 73. 74. Negative electrode conductive busbar positioning groove; 75. Conductive busbar clamp; 76. Terminal solder positioning groove; 77. Terminal solder clamp; 78. Support cylinder; 79. Supporting sliding pin; 70. Material lifting cylinder; 71. Support block; 72. Pneumatic and electrical connector; 83. Monitoring sensor; 94. Pneumatic and electrical supply connector; 95. Positioning assembly; 96. Lifting plate; 97. Positioning cone pin; 98. Lifting cylinder; 99. Connecting plate; 90. Positioning stop assembly. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] For ease of understanding, the specific structure and working method of this utility model are further described below with reference to the accompanying drawings: This application and the assembly structure formed by this application refer to Figure 1-8As shown, its main structural core is a highly efficient, stable and automated integrated production line for conductive busbar welding and milling, which is composed of a carrier 70, a conveyor line, a friction stir welding device 40 on the conveyor line and a milling device 50.

[0031] Among them, 70 vehicles Figure 5-8 As shown: The carrier 70 uses a jig plate 71 as its main support. The jig plate 71 has conductive busbar positioning grooves machined on its surface for positioning the conductive busbar body. In a preferred embodiment, such as... Figure 5 As shown, the busbar positioning groove includes a positive busbar positioning groove 72 and a negative busbar positioning groove 73 arranged side by side (generally, the groove length of the positive busbar positioning groove 72 is greater than that of the negative busbar positioning groove 73), allowing for the simultaneous processing of two products and improving efficiency. Furthermore, a terminal solder positioning groove 75 is connected to each end of each busbar positioning groove (generally, both ends of the positive busbar positioning groove 72 have terminal solder positioning grooves 75, while the negative busbar positioning groove 73 only has one end). This terminal solder positioning groove 75 serves as a carrier for placing the terminals and solder to be soldered; its cavity is the welding station, and its bottom is the bearing surface for the terminals and solder during welding. In actual implementation, the terminal solder positioning groove 75 has a cross-shaped / T-shaped structure, with the solder and terminals placed crosswise, and the welding between the busbar body and the terminals is achieved through friction stir welding. When using friction stir welding to weld the main body and terminals of a busbar, the solder refers to the lead-in and lead-out plates placed on both sides of the main body and terminals of the busbar, respectively, for the stirring head to insert and remove the blade.

[0032] To achieve automated clamping, such as Figure 5 and Figure 6 As shown, above the slots of the positive electrode busbar positioning slot 72 and the negative electrode busbar positioning slot 73, respectively, are busbar clamps 74 driven by cylinders; correspondingly, as... Figure 7 As shown, above the opening of each terminal solder positioning groove 75, a terminal solder clamp 751 driven by a cylinder is also installed. Naturally, the clamping areas of the busbar clamp 74 and the terminal solder clamp 751 need to avoid the areas for welding and milling. The busbar clamp 74 and the terminal solder clamp 751 driven by the cylinder together constitute a pneumatic-electric clamping module. These clamps preferably adopt a swing-arm structure, where the linear motion of the cylinder piston rod is converted into the swinging motion of the clamping block to achieve clamping and releasing, which has the advantages of compact structure and large clamping force. In actual implementation, other clamping methods can also be used, such as the linear motion clamping method in the prior art.

[0033] The key innovation of this carrier 70 lies in its ability to switch between clamping states, allowing the same carrier 70 to adapt to welding processes with high requirements for support rigidity and milling processes with high requirements for clearance space. Specifically, such as Figure 7 As shown, a support block 771 capable of lifting and lowering is provided directly below the terminal solder positioning groove 75. The support block 771 is driven by a material-supporting cylinder 77 fixedly installed at the bottom of the fixture plate 71, and the support block 771 can be configured into a welding state for welding and a milling state for milling during lifting and lowering.

[0034] Still as Figure 7 As shown, in the welding state, the support block 771 rises, so that its top surface penetrates to be flush with the inner wall of the bottom of the terminal solder positioning groove 75 (i.e., the bottom support surface). At this time, the support block 771 provides a solid bottom support for the terminal solder placed in the groove; furthermore, the side wall of the support block 771 has an extension, which abuts against the bottom of the terminal solder positioning groove 75 in the welding state to assist in supporting the terminal solder positioning groove 75 and also to provide a solid bottom support for the entire terminal welding positioning groove 75. Especially when performing high-pressure welding processes such as friction stir welding, it can effectively prevent workpiece deformation and ensure the consistency of welding depth, thereby ensuring reliable and strong weld joint quality.

[0035] In the milling state, i.e., after welding is completed, the support block 771 descends, causing its upper surface to move a predetermined distance below the bottom of the terminal solder positioning groove 75. This creates a milling clearance zone at the original support surface at the bottom of the groove. When the milling cutter performs milling operations on the welded joint area and mills off the lead-in and lead-out plates, even if there is excessive milling or tool runout, the carrier 70 itself will not be damaged, effectively protecting the carrier 70 and avoiding milling cutter damage or machining defects caused by interference with the fixture.

[0036] To further enhance the support rigidity in the welded state, combined with Figure 6 , Figure 7 As shown, a preferred embodiment is as follows: a support cylinder 76 is also installed on the fixture plate 71, which drives a support pin 761 to slide horizontally. When the support block 771 is in the welding state, the support cylinder 76 actuates, driving the support pin 761 to pass horizontally through the corresponding hole on the support block 771. This is equivalent to adding a lateral locking mechanism to the support block 771, greatly enhancing its ability to resist welding pressure, and forming an extremely stable welding support platform.

[0037] In the embodiment with the support cylinder 76 and the support sliding pin 761, the lifting drive of the support block 771 has the following two embodiments: Example 1 of the lifting drive for support block 771: A material-supporting cylinder 77 is provided to drive the lifting and lowering movement of support block 771. The pneumatic-electric actuator module is composed of support cylinder 76 and material-supporting cylinder 77. In this example, the lifting and lowering of support block 771 is directly driven by dedicated material-supporting cylinder 77, which is fast, precise in position control, and independent of the movement of support sliding pin 761, resulting in high system stability.

[0038] Embodiment 2 of the lifting drive for support block 771: A material-supporting cylinder 77 is still provided, but the lifting cylinder 77 does not need to be connected to an air source; it is only used as a guide for guiding the sliding of support block 771. Alternatively, the material-supporting cylinder 77 can be omitted, and the sliding guidance and positioning of support block 771 can be achieved using guide grooves or guide rods. In this embodiment, the support cylinder 76 constitutes a separate pneumatic-electric actuator module. Another difference is that the upper part of the through section on the support pin 761 that penetrates the support block 771 has a wedge-shaped structure, so that when the support pin 761 penetrates the support block 771, the wedge-shaped cooperation between the two drives the support block 771 to slide upward. The structure is simple and the cost is low. This embodiment eliminates an active drive source and its related control components, simplifies the pneumatic system, and significantly reduces manufacturing costs and equipment complexity.

[0039] In addition, combined Figure 6 , Figure 7 As shown, in order to achieve intelligent monitoring, multiple monitoring sensors 79, such as photoelectric sensors or fiber optic sensors, can be installed on the fixture plate 71 to detect whether there is material correctly placed in the conductive bar positioning groove and the terminal solder positioning groove 75, and to feed the signal back to the control system to prevent the equipment from operating when there is a shortage of material.

[0040] Furthermore, such as Figure 5 , Figure 6 As shown, to facilitate guidance on the conveyor line, at least two sets of guide wheels 711 are installed on both sides of the fixture plate 71. The axes of these guide wheels 711 are arranged vertically and can roll in cooperation with the inner sidewall of the conveyor channel, effectively reducing friction and jamming of the carrier 70 during the conveying process and ensuring its smooth movement.

[0041] Conveyor lines such as Figure 1-4 As shown: To form a complete automated cycle for carrier 70, the conveyor line can employ a double-layer conveyor mechanism 30. For example... Figure 1 and 2As shown, the upper layer is a working roller conveyor 31, used to transport the carrier 70 carrying workpieces (conductive busbars or other workpieces that need to be clamped and fixed) from upstream to downstream. The friction stir welding device 40 and the milling device 50 are arranged sequentially in the conveying direction of the upper working roller conveyor 31 to form two processing stations (i.e., welding station and milling station) on the upper working roller conveyor 31. The lower layer is a recovery roller conveyor 32, which conveys in the opposite direction to the upper layer, used to send the empty carrier 70 after unloading downstream back to the upstream.

[0042] like Figure 1 and Figure 2 As shown, a loading mechanism 20 is provided at the upstream end, and a unloading mechanism 60 is provided at the downstream end. Both the loading mechanism 20 and the unloading mechanism 60 include a lifting roller conveyor 61 constituting a conveying section and a lifting assembly 62 that drives its lifting. Both sets of lifting roller conveyors 61 can reciprocate between the ends of the upper and lower conveyor lines, respectively, realizing the transfer of the carrier 70 between the two layers, forming an efficient closed-loop logistics system. The loading station and the unloading station are located on the lifting roller conveyors 61 of the loading mechanism 20 and the unloading mechanism 60, respectively.

[0043] Based on the above, in order to realize the pneumatic and electric clamping module for clamping the workpiece in the carrier 70 and the pneumatic and electric actuation module for switching the carrier 70 between welding and milling states; and in an embodiment in which a monitoring sensor 79 is installed on the fixture plate 71 to detect the material status in the conductive bar positioning groove and the terminal solder positioning groove 75, the monitoring sensor 79 is powered.

[0044] like Figure 5 and Figure 8 As shown, an integrated pneumatic-electric connector 78 is fixedly installed on one side wall of the carrier 70. This pneumatic-electric connector 78 connects to the pneumatic and electrical connection terminals of all pneumatic and electric modules on the carrier 70 via internal pipes and wiring, serving as the connection gateway for the power and control signals of the carrier 70. At key stations on the conveyor line, including the loading station, one or more processing stations (such as welding and milling stations), and the unloading station, a pneumatic-electric supply connector 80 is installed, driven by a power source (such as a cylinder, electric cylinder, lead screw slider mechanism, or other linear stroke structure) and capable of connecting to the corresponding pneumatic-electric connector 78. The other end of the pneumatic-electric supply connector 80 connects to both a pneumatic and electrical source, forming a bridge between the pneumatic-electric connector 78 and the pneumatic and electrical source.

[0045] In addition, to ensure a stable connection between the pneumatic power supply connector 80 and the pneumatic power connection connector 78, a positioning component 90 of the positioning carrier 70 is also provided at the corresponding work station.

[0046] Positioning component 90 is as follows Figure 3 and Figure 4As shown, the positioning component 90 includes a positioning stop component 94 movable to the conveyor path of the conveyor line, which stops the carrier 70 from moving forward at the corresponding workstation. Specifically, when the carrier 70 is conveyed to the target workstation by the conveyor line, the positioning stop component 94 at that workstation, for example, a cylinder-driven stop, rises vertically or swings upward, stopping the carrier 70 on the conveyor path and causing it to fall into position. Simultaneously, combined with the rolling engagement of the guide wheel 711 on the side wall of the carrier 70 with the inner side wall of the conveyor channel of the conveyor line (in actual implementation, the guide wheel 711 is only used to reduce the friction of the carrier 70 sliding; in actual implementation, the guide wheel 711 can also be set on the side wall of the conveyor channel, or if both are made of a smooth material with low friction, the guide wheel 711 can be omitted), the coarse positioning of the carrier 70 is comprehensively achieved.

[0047] In addition, such as Figure 3 and Figure 4 As shown, the positioning component 90 also includes a structure for achieving fine positioning of the vehicle 70, which mainly includes: a lifting and positioning part for lifting and positioning the vertical height of the vehicle 70 after the vehicle 70 has completed coarse positioning, and a plugging and positioning part that forms a vertical insertion fit with the vehicle 70 to position the horizontal direction.

[0048] Specifically, two lifting plates 91 are located below the bottom ends of the carrier 70. Driven by lifting cylinders 93, the lifting plates 91 are synchronously lifted upwards, lifting the entire carrier 70 off the upper surface of the conveyor line, achieving precise vertical positioning. The lifting plates 91 constitute the lifting and positioning section. Furthermore, at least two positioning cone pins 92 are fixed on each lifting plate 91, and corresponding positioning insertion holes 712 are provided at both ends of the bottom of the carrier 70. During the lifting process, the positioning cone pins 92 are precisely inserted into the positioning insertion holes 712. Utilizing the self-centering characteristic of the conical surface fit, the position of the carrier 70 in the X and Y directions in the horizontal plane is perfectly corrected and locked. The positioning cone pins 92 constitute the insertion and positioning section.

[0049] It should be noted that since the aforementioned lifting plate 91 needs to support the carrier 70, a staggered avoidance arrangement must be formed between the lifting plate 91 and the conveyor surface of the conveyor line. Specifically, this avoidance can be achieved by configuring the conveyor line as a roller conveyor, with the lifting plate 91 positioned at the interval between adjacent rollers to avoid them. Alternatively, the conveyor line can be configured as multiple belt conveyors spaced side-by-side, with the lifting plate 91 positioned at the intervals between the belt conveyors. Furthermore, the lifting plate 91 can directly avoid the conveyor path, i.e., the carrier 70 has an extension end located outside the top-view projection of the conveyor path, and the lifting contact portion between the lifting plate 91 and the carrier 70 is also located outside the top-view projection of the conveyor path. Considering that the lifting plate 91 also provides some support during friction stir welding and milling, positioning the lifting plate 91 at the interval between adjacent rollers or at the interval between belt conveyors is preferred.

[0050] Simultaneously or after the carrier 70 is precisely positioned, the pneumatic-electric supply connector 80 at this station moves towards the side wall of the carrier 70 under the drive of a power source (such as a cylinder), and finally achieves a tight plug-in connection with the pneumatic-electric connector 78 on the carrier 70. At this moment, a stable external air and power source is supplied to the carrier 70 through this pair of connectors, enabling all pneumatic and electric components on it to further prepare for executing commands. When the carrier 70 completes the required conveying at the corresponding station, the pneumatic-electric supply connector 80 separates from the pneumatic-electric connector 78. In this structural arrangement, the wiring on the carrier 70 is integrated on the carrier 70, while the pneumatic-electric supply connector 80 connected to the air and power sources is integrated on the conveyor line, avoiding the complex configuration of integrating the power and air sources on the carrier 70. Furthermore, when the pneumatic-electric supply connector 80 is separated from the carrier 70, the wiring connected to the air and power sources will not move with the operation of the carrier 70, thus eliminating any wiring entanglement issues.

[0051] It is worth mentioning that the above-mentioned pneumatic and electrical supply connector 80 and the pneumatic and electrical connector 78 are plugged into each other. How to make all the pneumatic and electric components on the vehicle 70 prepare to execute commands is a conventional control method in the prior art. This application only provides a hardware platform that can realize the above two plugging into each other to supply power and air to the pneumatic and electric components on the vehicle 70, without extending to the specific control algorithm.

[0052] It should be noted that after the pneumatic power supply connector 80 and the pneumatic power connection connector 78 are connected to perform the clamping action, the pneumatic clamping module on the carrier 70 can maintain the clamping action after the subsequent connection between the pneumatic power supply connector 80 and the pneumatic power connection connector 78 is disconnected, so as to ensure the stability of the product during transportation.

[0053] Based on the above, such as Figure 4 As shown, to ensure the extreme stability of the machining station under machining forces such as milling forces, an enhancement scheme is to rigidly connect the two lifting plates 91 at the machining station with a connecting plate 931. After the connecting plate 931 is lifted to its highest point by the lifting cylinder 93, i.e., after the carrier 70 is positioned, two sets of sliding support plates 33, driven by support plate cylinders 331, are installed on the frame of the conveyor line. These two sets of sliding support plates 33 slide horizontally from both ends of the connecting plate 931, inserting themselves below it or forming a groove with it, greatly enhancing the entire positioning system's ability to resist vertical and horizontal cutting forces and ensuring machining accuracy.

[0054] The complete automated workflow of the above production line is as follows: In the feeding state, the lifting roller conveyor 61 of the feeding mechanism 20 descends to the lower recycling roller conveyor 32 of the double-layer conveying mechanism 30 to receive the empty carrier 70 conveyed by the recycling roller conveyor 32; thereafter, the positioning component 90 of the feeding station is activated to accurately position and lift the carrier 70. At this time, the positive electrode conductive busbar and the negative electrode conductive busbar can be placed into the positive electrode conductive busbar positioning slot 72 and the negative electrode conductive busbar positioning slot 73 respectively by the operator or robot, and the terminals and solder can be placed into the corresponding terminal solder positioning slot 75 (before the actual placement, the lifting roller conveyor 61 can be driven by the lifting component 62 of the feeding mechanism 20 to be adjusted to a position that is convenient for manual or robotic loading).

[0055] Subsequently, the pneumatic power supply connector 80 connects to the pneumatic power supply connector 78 of the carrier 70, and the control system issues a command, causing the conductive bar clamp 74 and the terminal solder clamp 751 on the carrier 70 to activate and reliably clamp all workpieces.

[0056] After clamping is completed, the pneumatic connector is disconnected, and the lifting of the carrier 70 by the positioning component 90 is released, causing the carrier 70 to fall back to the lifting roller conveyor 61. At this time, the lifting component 62 of the feeding mechanism 20 drives the outlet of the lifting roller conveyor 61 to connect with the inlet of the working roller conveyor 31, so that the carrier 70 is conveyed downstream on the working roller conveyor 31.

[0057] When the carrier 70 is transported to the welding station of the friction stir welding device 40, the positioning component 90 (including the sliding support plate 33 inserting into the support connecting plate 931) and the pneumatic and electrical supply connector 80 at the welding station are activated, completing the precise positioning and power connection of the carrier 70. The pneumatic and electrical actuator of the carrier 70 operates: the material-supporting cylinder 77 drives the support block 771 to rise to the welding state; subsequently, the support cylinder 76 optionally drives the support sliding pin 761 to lock the support block 771, making the stable welding platform ready. Afterwards, the welding head of the friction stir welding device 40 presses down to weld the joint between the conductive busbar and the terminal, and the stable support ensures the welding quality.

[0058] After welding is completed, the pneumatic-electric supply connector 80 is disconnected, and the carrier 70 continues to be transported to the milling station of the milling device 50. Similarly, the positioning component 90 and the pneumatic-electric supply connector 80 of the milling station are activated, completing precise positioning and energy connection again. At this time, the pneumatic-electric actuator module of the carrier 70 switches the support block 771 to milling mode, thus creating a safe milling clearance zone below the welded joint. Then, the milling cutter of the milling device 50 is activated to mill the welded joint to achieve the specified dimensions and surface finish. The existence of the clearance zone effectively protects the cutting tools and fixtures.

[0059] Once milling is complete, the pneumatic / electrical supply connector 80 is disconnected, and the positioning is released. The carrier 70, having completed all machining, is conveyed to the lifting roller conveyor 61 of the unloading mechanism 60. At the unloading station, the positioning assembly 90 and the pneumatic / electrical supply connector 80 are also activated. Subsequently, the busbar clamp 74 and the terminal solder clamp 751 are released, and the operator or robot removes the two finished busbars.

[0060] The empty carrier 70 is then transferred by the unloading mechanism 60 to the lower-level recycling roller conveyor 32, and begins to be transported back to the loading mechanism 20 to form the next production cycle. In actual production, this application places multiple carriers 70 carrying products between the loading mechanism 20 and the unloading mechanism 60 to improve the production cycle.

[0061] In summary, this application constructs a highly automated, tightly integrated, and stable production line. It solves industry pain points such as the separation of conductive busbar welding and milling processes and the inconvenience of energy supply to the carrier 70, achieving a continuous and efficient production mode with significant advantages in improving product quality, production efficiency, and reducing operating costs.

[0062] Of course, those skilled in the art will recognize that this invention is not limited to the details of the exemplary embodiments described above, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0063] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0064] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A conveying system for an automated production line, comprising a conveyor line and a carrier (70) equipped with a pneumatic-electric clamping module, characterized in that, The side wall of the carrier (70) is fixed with a pneumatic and electrical connector (78) that connects all the pneumatic and electrical connection ends of the pneumatic and electrical clamping module. The processing station, loading station and unloading station on the conveyor line are all equipped with positioning components (90) of the positioning carrier (70), and the corresponding station is equipped with a pneumatic and electrical supply connector (80) that connects the air source and the power source. The pneumatic and electrical supply connector (80) is driven by the power source and can be connected to the pneumatic and electrical connector (78) of the carrier (70) positioned at the corresponding station.

2. The conveying system for an automated production line according to claim 1, characterized in that, The positioning component (90) includes a positioning stop component (94) movable to the conveying path of the conveyor line, which stops the carrier (70) from moving forward at the corresponding work station; the positioning component (90) also includes a lifting positioning part for lifting and positioning the vertical height of the carrier (70), and a plug-in positioning part that forms a vertical insertion fit with the carrier (70) to position the horizontal direction.

3. The conveying system for an automated production line according to claim 2, characterized in that, The bottom of the vehicle (70) has at least one positioning hole (712) at each end. The positioning component (90) includes two lifting plates (91) that can lift the two ends of the vehicle (70) to position its vertical height. The lifting plates (91) constitute the lifting positioning part. The lifting plates (91) are fixed with positioning cone pins (92) that are inserted into the corresponding positioning holes (712) of the vehicle (70) to position its horizontal direction. The positioning cone pins (92) constitute the insertion positioning part.

4. The conveying system for an automated production line according to claim 1, characterized in that, At least two sets of guide wheels (711) are installed on both sides of the carrier (70), and the guide wheels (711) roll in cooperation with the inner side wall of the conveying channel on the conveying line.

5. The conveying system for an automated production line according to claim 3, characterized in that, The two lifting plates (91) at the processing station are fixed to each other by a connecting plate (931). The conveyor line is slidably fitted with a sliding support plate (33) driven by a support plate cylinder (331) to slide horizontally. The sliding support plate (33) is set as two sets distributed at both ends of the connecting plate (931). When the connecting plate (931) is in the rising state of the lifting carrier (70), the two sets of sliding support plates (33) can slide horizontally to insert into the two ends of the connecting plate (931) respectively.

6. The conveying system for an automated production line according to claim 3, characterized in that, The conveyor line is a roller conveyor, and the lifting plate (91) is located at the interval between adjacent rollers.

7. The conveying system for an automated production line according to any one of claims 1-6, characterized in that, The conveying line includes a double-layer conveying mechanism (30), and the conveying directions of the two layers of conveying units are opposite. The two ends of the double-layer conveying mechanism (30) are respectively provided with a feeding mechanism (20) and a discharging mechanism (60). Both the feeding mechanism (20) and the discharging mechanism (60) include a conveying part that can reciprocate at the same end of the two layers of conveying units.

8. The conveying system for an automated production line according to claim 7, characterized in that, The conveying parts of the feeding mechanism (20) and the unloading mechanism (60) are both lifting roller conveyors (61). The feeding mechanism (20) and the unloading mechanism (60) also include lifting components (62) that drive the corresponding lifting roller conveyors (61) to rise and fall. The feeding station and the unloading station are located on the lifting roller conveyors (61) of the feeding mechanism (20) and the unloading mechanism (60), respectively.

9. The conveying system for an automated production line according to claim 7, characterized in that, The two conveying units of the double-layer conveying mechanism (30) are a working roller conveyor (31) located on the upper layer and a recycling roller conveyor (32) located on the lower layer, and the processing station is located on the working roller conveyor (31).

10. A welding and milling production line, wherein the welding and milling production line uses the conveying system for automated production lines as described in any one of claims 1-9, characterized in that, It includes a friction stir welding device (40) and a milling device (50) arranged sequentially along the conveying direction of the conveyor line.

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