Soft package battery series-parallel resistance welding device

Abstract

The invention relates to a soft package battery series-parallel resistance welding device, and belongs to the technical field of soft package battery series-parallel resistance welding, the soft package battery series-parallel resistance welding device comprises a cabinet, a bottom groove block for connection is arranged in the front of the cabinet, and a supporting table for supporting is fixedly mounted at the four corners of the top surface of the bottom groove block through fixed telescopic rods; according to the soft package battery welding device, the traditional mode that a structure is operated for multiple times to fix or disassemble a soft package battery is simplified, the problem that the soft package battery is loosened in the welding process can be solved, the welding efficiency is improved, the welding quality is improved, and the welding quality of the soft package battery is improved. The soft package battery can be rapidly and efficiently fixed, and the problems that due to the fact that the soft package battery is not stably fixed, a pole lug of the soft package battery is likely to displace in the welding process, the contact position of a welding head and the pole lug is likely to deviate, local fusion is incomplete or the contact area is insufficient, and the welding quality is affected can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of series-parallel resistance welding of soft-pack batteries, and in particular to a series-parallel resistance welding device for soft-pack batteries. Background Art

[0002] The series-parallel resistance welding of soft-pack batteries utilizes the resistance heat generated when current passes through the contact points of the tabs on the soft-pack batteries to locally heat the metal tabs aluminum or copper to a plastic or molten state, and at the same time applies pressure to combine them to achieve series-parallel circuit connection. The device that uses the above structure for series-parallel resistance welding of soft-pack batteries is called a series-parallel resistance welding device for soft-pack batteries.

[0003] However, during the use of the soft-pack battery series-parallel resistance welding device, the soft-pack battery may be unstable. The traditional soft-pack battery fixing process is very cumbersome and requires multiple operations to fix or remove the structure. If the soft-pack battery becomes loose during the welding process, the traditional device cannot effectively and quickly fix it during the welding process. An unstable soft-pack battery may cause the soft-pack battery tab to shift during welding, and the contact position between the welding head and the tab may shift, resulting in local non-fusion or insufficient contact area, affecting the quality of welding.

[0004] In order to solve the above problems, a soft-pack battery series-parallel resistance welding device is needed. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a series-parallel resistance welding device for soft-pack batteries, which solves the problem that traditional devices cannot fix soft-pack batteries quickly and efficiently, and can also solve the problem that the device cannot achieve effective and fast fixation during the welding process, avoiding the problem that unstable fixation of soft-pack batteries may cause the soft-pack battery tabs to shift during welding, the contact position between the welding head and the tabs to shift, resulting in local non-fusion or insufficient contact area, and affecting the quality of welding.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a series-parallel resistance welding device for soft-pack batteries, comprising a cabinet, a bottom slot block for connection provided on the front of the cabinet, a support platform fixedly mounted at each of the four corners of the top surface of the bottom slot block via fixed telescopic rods, and an electric telescopic rod for power propulsion fixedly mounted at the center of the top surface of the bottom slot block, a resistance welding head for welding fixedly mounted on the front of the cabinet, and a control panel for controlling startup fixedly mounted on the front of the cabinet on one side of the resistance welding head; A storage cylinder for storing flux is fixedly installed on the back of the resistance welding head through a fixed connecting tube, and a fixed slot plate for fixing the soft-pack battery is fixedly installed on the top surface of the support table through an adjusting component, and a conversion component for conversion is provided inside the fixed slot plate.

[0007] Furthermore, the adjustment assembly includes first trapezoidal connecting blocks fixedly mounted at the four corners of the top surface of the support platform, and a first guide rod for guiding is fixedly mounted on opposite sides of two corresponding first trapezoidal connecting blocks, and a plurality of first sliding hole blocks for sliding are slidably mounted on the rod walls of the two first guide rods, and a connecting cross plate for connection is fixedly mounted on the top surfaces of the plurality of first sliding hole blocks; Second trapezoidal connecting blocks are fixedly installed at the four corners of the top surface of the connecting cross plate, and the opposite sides of the two corresponding second trapezoidal connecting blocks are jointly fixedly installed with a second guide rod for guiding, and the rod walls of the two second guide rods are slidably installed with a number of second sliding hole blocks for sliding, and the top surfaces of the several second sliding hole blocks are fixedly connected to the bottom surface of the fixed slot plate.

[0008] Furthermore, the conversion component includes a conversion ring cavity opened inside the fixed slot plate, and a movable groove for movement is opened on the side of the fixed slot plate surface close to the control screen, storage grooves for storage are opened on the surrounding sides of the inner wall of the fixed slot plate, and a pushing component for pushing is provided between the inner walls of several storage grooves and the inner walls of the conversion ring cavity, and limiting grooves for limiting are opened on the upper and lower sides of the inner wall of the movable slot, and the inner walls of the two limiting grooves are fixedly installed with movable blocks through sliding limiting blocks, and pulling handles for pulling are fixedly installed on the right side of the movable block and the front of the fixed slot plate, and the front and back sides of the movable block are provided with air supply components.

[0009] Furthermore, the pushing assembly includes a piston cylinder fixedly mounted on one side of the inner wall of the storage tank, and the inner wall of the piston cylinder is fixedly mounted with a pushing rod for pushing through a movably connected piston block, and one end of the two corresponding pushing rods is jointly fixedly mounted with an extrusion plate for extrusion and fixing, and a damping spring for pulling is fixedly mounted on a side of the piston block away from the push rod, an exhaust port for exhaust is provided on the side of the inner wall of the conversion ring cavity away from the movable groove, and a pressure relief valve for deflation is fixedly mounted on the inner wall of the exhaust port, and an exhaust valve for exhaust is provided on the inner wall of the conversion ring cavity in front of the exhaust port.

[0010] Furthermore, the air supply assembly includes a push rod fixedly mounted on one side of the surface of the movable block, and a connecting elbow for communication is fixedly mounted on one side of the push rod inside the fixed groove plate, and an air guide pipe for air guidance is fixedly mounted on the side of the connecting elbow surface away from the movable block, a first check valve for non-return is fixedly mounted on the inner wall of the air guide pipe, and a second check valve for non-return is fixedly mounted on the side of the inner wall of the connecting elbow close to the conversion ring cavity, and the side of the inner wall of the connecting elbow close to the movable block is fixedly connected to the end of the push rod via a sliding sealing block; The interior of the two first guide rods and the two second guide rods are each provided with a pushing cavity for pushing, and one side of the inner wall of the pushing cavity is rotatably installed with a screw for thread transmission, and the other end of the two corresponding screws respectively penetrates the corresponding inner wall of the pushing cavity and the trapezoidal connecting block structure and extends to the surface of the trapezoidal connecting block structure, and the end of the screw close to the trapezoidal connecting block structure is fixedly installed with a round block for rotation, and the surface of the screw is located in the pushing cavity and is threadedly connected to a plurality of moving hole blocks for movement, and the opposite sides of the plurality of moving hole blocks are rotatably installed with oblique push plates for oblique pushing through the two fixed first fixed blocks, and the side of the plurality of oblique push plates away from the surface of the screw is rotatably installed with two second fixed blocks for connection, and the surfaces of the corresponding second fixed blocks are jointly fixed with top slides for movement, and the surfaces of the top slides penetrate the inner wall of the pushing cavity.

[0011] Furthermore, the bottom trough block includes a rectangular plate and a rectangular groove opened at the center in front of the top surface of the rectangular plate. The support platform is a plate structure and a rectangular notch is opened in the front of the plate.

[0012] Furthermore, the two first guide rods are located directly below the two second guide rods, and the first guide rods and the second guide rods are vertically staggered with each other.

[0013] Furthermore, the surface of the movable block is tightly fitted with the inner wall of the movable groove, the output end of the electric telescopic rod is fixedly connected to the bottom surface of the support platform, and a foot switch for starting is provided in front of the bottom groove block.

[0014] Furthermore, the surfaces of the plurality of extrusion plates are respectively tightly fitted with the inner walls of the corresponding storage grooves, and one ends of the plurality of damping tension springs are fixedly connected to the inner wall of the conversion ring cavity.

[0015] Furthermore, the two connecting bends are both L-shaped tube structures, and connect the inner wall of the movable groove and the inner wall of the conversion ring cavity. The surfaces of the two air guide tubes pass through the interior of the fixed groove plate and extend to the surface of the fixed groove plate. The check directions of the two first check valves and the two second check valves are set in opposite directions.

[0016] Compared with the prior art, the present invention provides a series-parallel resistance welding device for soft-pack batteries, which has the following beneficial effects: 1. The device simplifies the traditional method of fixing or removing soft-pack batteries with multiple operations. In addition, the device can fix the soft-pack batteries quickly and efficiently when loosening occurs during the welding process. It can avoid the problem that unstable soft-pack batteries may cause the soft-pack battery tabs to shift during welding, the contact position between the welding head and the tabs to shift, resulting in local non-fusion or insufficient contact area, and affecting the quality of welding.

[0017] 2. The device uses the rectangular groove set in the bottom groove block to facilitate the operator's footsteps, increase the comfort of using the structure inside the device, and improve the performance of the device. The vertical operation of the upper and lower offset guide rod structure can ensure the forward, backward, left and right movement of the product during welding, and increase the flexibility of the device structure product.

[0018] 3. The device uses the setting of foot switch to free both hands, so that both hands can better operate the structure to weld products, reducing the difficulty of the product welding process. The setting of damping spring ensures that the extrusion plate of the device is in a state of contraction in the storage tank without being affected by the air pressure thrust.

[0019] 4. The device utilizes the opposite setting of two check valve structures to ensure that the sealing block in the device can ensure the effect of suction and blowing during the movement process, and can better supply air to the conversion ring cavity to ensure the normal use function of the structure in the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall three-dimensional diagram of the present invention; Figure 2 This is an expanded perspective view of the adjustment assembly of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure of the middle part A; Figure 4 This is a cross-sectional perspective view of the fixed slot plate of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of the middle B part; Figure 6 This is a cross-sectional perspective view of the connecting elbow of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram of the middle C part; Figure 8 This is a cross-sectional perspective view of the piston cylinder of the present invention; Figure 9 It is a perspective view of the present invention as a whole; Figure 10 This is a three-dimensional diagram of the first sliding hole block of the present invention; Figure 11 This is a vertical sectional perspective view of the first guide rod of the present invention; Figure 12 For the present invention Figure 11 Schematic diagram of the enlarged structure of part D in the middle.

[0021] In the figure: 1, cabinet; 2, bottom slot block; 201, rectangular plate; 202, rectangular slot; 3, telescopic rod; 4, support table; 5, electric telescopic rod; 6, resistance welding head; 7, control panel; 8, connecting pipe; 9, storage cylinder; 10, adjustment assembly; 1001, first trapezoidal connecting block; 1002, first guide rod; 1003, first sliding hole block; 1004, connecting cross plate; 1005, second trapezoidal connecting block; 1006, second guide rod; 1007, second sliding hole block; 11, fixed slot plate; 12, conversion assembly; 1201, conversion ring cavity; 1202, moving slot; 1203, storage slot; 1204, limit slot; 1205, limit block; 12 06. Movable block; 1207. Pull handle; 13. Foot switch; 14. Push assembly; 1401. Piston cylinder; 1402. Piston block; 1403. Push rod; 1404. Extrusion plate; 1405. Exhaust port; 1406. Pressure relief valve; 1407. Exhaust valve; 15. Air supply assembly; 1501. Push rod; 1502. Connecting elbow; 1503. Air guide pipe; 1504. First check valve; 1505. Second check valve; 1506. Sealing block; 16. Damping tension spring; 17. Push chamber; 18. Screw; 19. Round block; 20. Movable hole block; 21. First fixed block; 22. Inclined push plate; 23. Second fixed block; 24. Push slide plate. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 10, a soft-pack battery series-parallel resistance welding device in this embodiment includes a cabinet 1, a bottom slot block 2 for connection is provided in the front of the cabinet 1, and a foot switch 13 for starting is provided in the front of the bottom slot block 2. The foot switch 13 ensures the convenience of operation of the device, frees both hands, and adapts to the needs of multiple scenarios. The device is started and stopped by the foot switch 13, avoiding the problem of workpiece offset or action interruption caused by single-handed operation of the button, and the foot operation requires active force such as stepping on and lifting. Compared with lightly touching the button with the hand, it can reduce the false triggering caused by arm collision and clothing scratch, thereby increasing the safety of the structure in the device during operation. The bottom slot block 2 includes a rectangular plate 201 and a rectangular slot 202 opened at the center of the front of the top surface of the rectangular plate 201, and the four corners of the top surface of the bottom slot block 2 are fixedly installed with a support platform 4 for support through a fixed telescopic rod 3. The support platform 4 is a plate structure and A rectangular notch is provided in the front of the plate body. The notch structure of the support platform 4 can ensure a better operating effect for the operator and ensure the convenience of use of the structure inside the device. An electric telescopic rod 5 for power promotion is fixedly installed at the center of the top surface of the bottom slot block 2. The output end of the electric telescopic rod 5 is fixedly connected to the bottom surface of the support platform 4. A resistance welding head 6 for welding is fixedly installed in the front of the cabinet 1, and a control panel 7 for controlling startup is fixedly installed on one side of the resistance welding head 6 in the front of the cabinet 1. The control panel 7 is a human-computer interaction interface that realizes status monitoring, parameter setting, and command sending of the equipment or system through a combination of hardware such as display screens, buttons, knobs, and software operating systems and control programs. It is a mature technology now, and the control panel 7 is a mature technology now, and the control panel 7 does not make an innovative contribution to the present device, so the present device does not make too many redundant descriptions of the control panel 7; A storage cylinder 9 for storing flux is fixedly installed on the back of the resistance welding head 6 through a fixed connecting tube 8, and a fixed slot plate 11 for fixing the soft-pack battery is fixedly installed on the top surface of the support platform 4 through an adjusting component 10, and a conversion component 12 for conversion is provided inside the fixed slot plate 11.

[0024] Among them, the adjustment component 10 includes a first trapezoidal connecting block 1001 fixedly installed at the four corners of the top surface of the support platform 4, and the opposite sides of the two corresponding first trapezoidal connecting blocks 1001 are jointly fixedly installed with a first guide rod 1002 for guiding. The two first guide rods 1002 are arranged directly below the two second guide rods 1006, and the first guide rods 1002 and the second guide rods 1006 are arranged perpendicularly and staggered with each other. The guide rod structure arranged up and down can ensure the effect of the front, back, left and right movement of the fixed slot plate 11, which is convenient for the processing of the soft-pack battery in the fixed slot plate 11, and the rod walls of the two first guide rods 1002 are slidably installed with a plurality of first sliding hole blocks 1003 for sliding, and the top surfaces of the plurality of first sliding hole blocks 1003 are jointly fixedly installed with a connecting cross plate 1004 for connection; Second trapezoidal connecting blocks 1005 are fixedly mounted at the four corners of the top surface of the connecting cross plate 1004, and a second guide rod 1006 for guiding is fixedly mounted on the opposite sides of two corresponding second trapezoidal connecting blocks 1005. A plurality of second sliding hole blocks 1007 for sliding are slidably mounted on the rod walls of the two second guide rods 1006, and the top surfaces of the plurality of second sliding hole blocks 1007 are fixedly connected to the bottom surface of the fixed slot plate 11; The two first guide rods 1002 and the two second guide rods 1006 are each provided with a pushing cavity 17 for pushing, and one side of the inner wall of the pushing cavity 17 is rotatably installed with a screw 18 for thread transmission, and the other ends of the two corresponding screws 18 respectively penetrate the inner wall of the corresponding pushing cavity 17 and the trapezoidal connecting block structure and extend to the surface of the trapezoidal connecting block structure. The penetration effect of the screw 18 can ensure that the screw 18 is in the trapezoid shape. A round block 19 for rotation is fixedly installed at one end of the screw 18 close to the trapezoidal connecting block structure. The surface of the round block 19 in the device is frosted, thereby increasing the size of the round block 19. To improve the comfort of use and avoid the problem of the round block 19 slipping, the surface of the screw 18 is located in the internal thread connection of the pushing chamber 17, and several moving hole blocks 20 for movement are connected, and the opposite sides of several moving hole blocks 20 are rotatably installed with oblique push plates 22 for oblique pushing through two fixed first fixed blocks 21, and several oblique push plates 22 are rotatably installed on the side away from the surface of the screw 18. Two second fixed blocks 23 for connection are rotatably installed, and the surfaces of several corresponding second fixed blocks 23 are jointly fixedly installed with top slides 24 for movement, and the surface of the top slide 24 is set through the inner wall of the pushing chamber 17.

[0025] Among them, the conversion component 12 includes a conversion ring cavity 1201 opened inside the fixed groove plate 11, connecting the inner wall of the movable groove 1202 and the inner wall of the conversion ring cavity 1201. The conversion ring cavity 1201 of the present device is set to achieve the characteristic of uniform extrusion. The conversion ring cavity 1201 evenly distributes the air pressure to multiple piston cylinders 1401, pushing multiple groups of extrusion plates 1404 to move synchronously, ensuring balanced force on the device, reducing force deviation on the surface of the soft-pack battery, and thereby reducing the risk of failure caused by local stress. In addition, the device can increase the number of piston cylinders 1401 to adapt to batteries of different sizes, thereby increasing the versatility of the device, and a movable groove 1202 for movement is opened on the side of the surface of the fixed groove plate 11 close to the control screen 7, and storage grooves for storage are opened on the surrounding sides of the inner wall of the fixed groove plate 11. 1203, and a pushing assembly 14 for pushing is provided between the inner walls of the several storage grooves 1203 and the inner wall of the conversion ring cavity 1201, and the upper and lower sides of the inner wall of the movable groove 1202 are provided with limit grooves 1204 for limiting, and the inner walls of the two limit grooves 1204 are fixedly installed with a movable block 1206 through a sliding limit block 1205, and the surface of the movable block 1206 is tightly fitted with the inner wall of the movable groove 1202, and a pulling handle 1207 for pulling is fixedly installed on the right side of the movable block 1206 and the front of the fixed groove plate 11, and the device only needs to pull the handle 1207 to complete the fixing or release, which is more efficient than traditional bolts or buckles, thereby increasing the convenience of using the structure inside the device, and the front and back sides of the movable block 1206 are provided with an air supply assembly 15.

[0026] Among them, the pushing component 14 includes a piston cylinder 1401 fixedly installed on one side of the inner wall of the storage groove 1203, and the inner wall of the piston cylinder 1401 is fixedly installed with a pushing rod 1403 for pushing through a movably connected piston block 1402, and one end of the two corresponding pushing rods 1403 is jointly fixedly installed with an extrusion plate 1404 for extrusion and fixation, and the surfaces of several extrusion plates 1404 are tightly fitted with the inner walls of the corresponding storage grooves 1203, and the side of the piston block 1402 away from the pushing rod 1403 is fixedly installed with a damping spring 16 for pulling, and one end of several damping springs 16 is fixedly connected to the inner wall of the conversion ring cavity 1201, and an exhaust port 1405 for exhaust is provided on the side of the inner wall of the conversion ring cavity 1201 away from the movable groove 1202, and a pressure relief valve 1406 for deflation is fixedly installed on the inner wall of the exhaust port 1405. The arrangement of the pressure relief valve 1406 in the device can avoid the problem of battery damage. The problem occurs. When the air pressure exceeds the threshold set by the pressure relief valve 1406, the air is automatically exhausted to prevent the extrusion plate 1404 from being over-pressurized. The pressure relief protection of the pressure relief valve 1406 can avoid the problem of battery bulging or internal short circuit caused by over-tight installation of traditional rigid clamps. The device adopts the pressure relief adaptive effect of the pressure relief valve 1406 to ensure that the device can adapt to batteries of different thicknesses without manual adjustment, thereby increasing the overall performance of the device. The inner wall of the conversion ring cavity 1201 is located in front of the exhaust port 1405 and is provided with an exhaust valve 1407 for exhaust. The device adopts pneumatic buffering, and an adjustable air pressure buffering system is formed by the piston cylinder 1401 and the pressure relief valve 1406 to ensure that the pressure applied by the extrusion plate 1404 is uniform and will not damage the battery due to overload. It is better than traditional rigid clamps. Traditional screws or spring clamps are prone to battery deformation or internal diaphragm damage due to improper operation, while this structure avoids the risk of overpressure through air pressure adaptive adjustment.

[0027] Among them, the air supply component 15 includes a top rod 1501 fixedly installed on one side of the surface of the movable block 1206, and a connecting elbow 1502 for communication is fixedly installed on one side of the top rod 1501 inside the fixed slot plate 11. The two connecting elbows 1502 are both L-shaped pipe structures, and an air guide pipe 1503 for air guidance is fixedly installed on the side of the surface of the connecting elbow 1502 away from the movable block 1206. The inner wall of the air guide pipe 1503 is fixedly installed with a first check valve 1504 for non-return. The surfaces of the two air guide pipes 1503 all penetrate the interior of the fixed slot plate 11 and extend to the surface of the fixed slot plate 11. The check valves of the two first check valves 1504 and the two second check valves 1505 are fixedly installed. The directions are set in opposite directions, and a second check valve 1505 for check is fixedly installed on the side of the inner wall of the connecting elbow 1502 close to the conversion ring cavity 1201, and the side of the inner wall of the connecting elbow 1502 close to the movable block 1206 is fixedly connected to the end of the push rod 1501 through a sliding sealing block 1506. The structure of the first check valve 1504 and the second check valve 1505 can ensure one-way airflow, ensuring that the gas can only enter the conversion ring cavity 1201 in one direction, avoiding pressure leakage due to vibration or temperature changes, and maintaining long-term stable clamping force, which is better than the traditional spring fixing method. The spring may fatigue and relax due to long-term use, but the pneumatic system of this device does not have this problem, thereby increasing the applicability of the device.

[0028] The working principle of the above embodiment is: Before using the device, place the soft-pack battery into the fixed slot plate 11, and pull the corresponding pulling handle 1207 to drive the movable block 1206 to move. During the movement of the movable block 1206, the sealing block 1506 on the push rod 1501 will be driven to move in the connecting elbow 1502. During the movement of the sealing block 1506, the gas in the connecting elbow 1502 will be pushed into the conversion ring cavity 1201. During the movement of the sealing block 1506, when the sealing block 1506 moves close to the movable block 1206, the connecting elbow 1502 will inhale air into the connecting elbow 1502 through the air guide pipe 1503. The first check valve 1504 in the air guide pipe 1503 has a check effect of only taking in air but not letting out air. When the sealing block 1506 moves away from the movable block 1206, the connecting elbow 1502 will push the internal gas to the conversion ring cavity 120 1, the second check valve 1505 in the connecting elbow 1502 has a check effect of only outgoing air but not incoming air. The two check valve body structures in this application are set. The first check valve 1504 on the air guide pipe 1503 ensures that the gas only enters the connecting elbow 1502 during inhalation, and the second check valve 1505 at the outlet position of the connecting elbow 1502 ensures that the gas only flows to the conversion ring cavity 1201 during exhaust. In addition, the movable block 1206 in this application can transport gas back and forth, and the efficiency is improved to a certain extent compared with the single-stroke structure. The pressure provided is more stable, and the continuous air supply in the device makes the air pressure fluctuation in the conversion ring cavity 1201 small, and the extrusion plate 1404 moves more smoothly, which can better ensure the fixing quality of the soft-pack battery. In this way, the process of the sealing block 1506 driven by the ejector rod 1501 to move can continuously transport gas to the conversion ring cavity 1201; The gas in the conversion ring cavity 1201 will be converted into the driving force of the piston block 1402 through the piston cylinder 1401, so that the piston block 1402 will push the extrusion plate 1404 to squeeze and move the soft-pack battery in the fixed groove plate 11 through the push rod 1403, thereby ensuring the fixing effect of the soft-pack battery, and the pressure relief valve 1406 can ensure that the soft-pack battery will not be damaged by excessive pressure during the fixing process. The setting of the pressure relief valve 1406 in the device can avoid the problem of battery damage. When the air pressure exceeds the threshold set by the pressure relief valve 1406, it will automatically exhaust to prevent the extrusion plate 1404 from being over-pressurized. With the pressure relief protection of the pressure relief valve 1406, the problem of battery bulging or internal short circuit caused by over-tight installation of traditional rigid clamps is avoided. The pressure relief adaptive effect of the pressure relief valve 1406 adopted in this device can ensure that the device can adapt to batteries of different thicknesses without manual adjustment, thereby increasing the overall performance of the device. The device drives the movable block 1206 by pulling the handle 1207, converting mechanical energy into air pressure energy through the push rod 1501, the sealing block 1506 and the connecting elbow 1502, pushing the extrusion plate 1404 to fix the battery. The device has the effect of operating without power supply, which can avoid the risk of electrical failure. In addition, compared with electric or hydraulic fixing devices, this application reduces components such as pumps, valves, and circuits, reducing costs and maintenance difficulties. When the soft-pack battery processing is completed, the gas in the conversion ring cavity 1201 is completely released through the exhaust valve 1407, and then under the tension of the damping tension spring 16, the extrusion plate 1404 can be retracted into the storage groove 1203, so that the limiting fixing effect of the soft-pack battery can be released. Because the fixing structure of the present application is the fixing effect driven by the movement of the movable block 1206, the fixing effect can be guaranteed during the processing process, and the air pressure provided by the activity can be used to quickly and efficiently tighten the device, ensuring the use effect of the device; During the use of the device, the electric telescopic rod 5 can drive the soft-pack battery in the fixed slot plate 11 on the adjustment component 10 on the support table 4 to move up and down, and then can cooperate with the resistance welding head 6 to weld it, thereby achieving the effect of soft-pack battery welding. The resistance welding head 6 and the control screen 7 in this application are both existing mature technologies. This application highlights the innovative structure and does not elaborate too much on the existing mature technologies. The adjustment component 10 is mainly a guide sliding of the guide rod structure, which can ensure the effect of the soft-pack battery in the fixed slot plate 11 moving forward, backward, left and right, and the structure in the guide rod can avoid gaps in the use of the adjustment component 10. The problem of overall shaking and instability is that the sliding connection effect between the sliding hole block structure and the guide rod structure may wear out after long-term use, resulting in the generation of gaps, which will affect the stability of the adjustment component 10 during use, and may further affect the processing quality of the soft-pack battery. To solve the above problem, it is only necessary to rotate the round block 19 to drive the screw 18 to rotate, so that the threaded movable hole block 20 will move through the top slide 24 of the inclined push plate 22. When the top slide 24 is pushed open, the problem of the gap between the sliding hole block structure and the guide rod structure can be avoided, thereby ensuring the use effect of the structure in the device.

[0029] The installation method, connection method or setting method disclosed in this embodiment are all common mechanical connection methods, and can be implemented as long as they can achieve their beneficial effects. In addition, the electrical components appearing in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Technicians in this field can control the electrical components through simple programming, and the existing disclosed power connection technology is also common knowledge in this field, so the specific structural composition and working principle will not be described in detail in this embodiment.

Claims

1. A soft-pack battery series-parallel resistance welding device, comprising a cabinet (1), characterized in that: The cabinet (1) is provided with a bottom slot block (2) for connection in front, and a support platform (4) for support is fixedly installed at the four corners of the top surface of the bottom slot block (2) through fixed telescopic rods (3), and an electric telescopic rod (5) for power propulsion is fixedly installed at the center of the top surface of the bottom slot block (2), a resistance welding head (6) for welding is fixedly installed in front of the cabinet (1), and a control panel (7) for controlling startup is fixedly installed on the front of the cabinet (1) on one side of the resistance welding head (6); A storage cylinder (9) for storing soldering flux is fixedly mounted on the rear of the resistance welding head (6) via a fixed connecting pipe (8), and a fixed slot plate (11) for fixing a soft-pack battery is fixedly mounted on the top surface of the support platform (4) via an adjusting assembly (10), and a conversion assembly (12) for conversion is provided inside the fixed slot plate (11).

2. The soft pack battery series-parallel resistance welding device according to claim 1, characterized in that: The adjustment assembly (10) comprises a first trapezoidal connecting block (1001) fixedly mounted at the four corners of the top surface of the support platform (4), and a first guide rod (1002) for guiding is fixedly mounted on the opposite sides of two corresponding first trapezoidal connecting blocks (1001), and a plurality of first sliding hole blocks (1003) for sliding are slidably mounted on the rod walls of the two first guide rods (1002), and a connecting transverse plate (1004) for connection is fixedly mounted on the top surfaces of the plurality of first sliding hole blocks (1003); The four corners of the top surface of the connecting transverse plate (1004) are fixedly mounted with second trapezoidal connecting blocks (1005), and the opposite sides of the two corresponding second trapezoidal connecting blocks (1005) are fixedly mounted with a second guide rod (1006) for guiding, and the rod walls of the two second guide rods (1006) are slidably mounted with a plurality of second sliding hole blocks (1007) for sliding, and the top surfaces of the plurality of second sliding hole blocks (1007) are fixedly connected to the bottom surface of the fixed slot plate (11); The two first guide rods (1002) and the two second guide rods (1006) are each provided with a pushing cavity (17) for pushing, and a screw rod (18) for thread transmission is rotatably installed on one side of the inner wall of each of the pushing cavities (17), and the other ends of the two corresponding screw rods (18) respectively penetrate the inner wall of the corresponding pushing cavity (17) and the trapezoidal connecting block structure and extend to the surface of the trapezoidal connecting block structure, and a round block (19) for rotation is fixedly installed on one end of the screw rod (18) close to the trapezoidal connecting block structure, and the surface of the screw rod (18) is located in the pushing cavity. The internal thread of (17) is connected with a plurality of movable hole blocks (20) for movement, and the opposite sides of the plurality of movable hole blocks (20) are rotatably mounted with inclined push plates (22) for oblique pushing through two fixed first fixed blocks (21), and the sides of the plurality of inclined push plates (22) away from the surface of the screw rod (18) are rotatably mounted with two second fixed blocks (23) for connection, and the surfaces of the plurality of corresponding second fixed blocks (23) are fixedly mounted with top slide plates (24) for movement, and the surface of the top slide plate (24) passes through the inner wall of the pushing cavity (17).

3. The series-parallel resistance welding device for soft-pack batteries according to claim 2, characterized in that: The conversion assembly (12) includes a conversion ring cavity (1201) opened inside the fixed groove plate (11), and a moving groove (1202) for movement is opened on the side of the fixed groove plate (11) close to the control screen (7), and storage grooves (1203) for storage are opened on the peripheral side of the inner wall of the fixed groove plate (11), and a pushing assembly (14) for pushing is provided between the inner walls of the plurality of storage grooves (1203) and the inner wall of the conversion ring cavity (1201). Limiting grooves (1204) for limiting are provided on both the upper and lower sides of the inner wall of the movable groove (1202), and the inner walls of the two limiting grooves (1204) are fixedly installed with a movable block (1206) through a sliding limiting block (1205), and a pulling handle (1207) for pulling is fixedly installed on the right side of the movable block (1206) and the front side of the fixed groove plate (11), and the front and rear sides of the movable block (1206) are provided with an air supply component (15).

4. The device for series-parallel resistance welding of soft-pack batteries according to claim 3, characterized in that: The pushing assembly (14) includes a piston cylinder (1401) fixedly mounted on one side of the inner wall of the storage groove (1203), and the inner wall of the piston cylinder (1401) is fixedly mounted with a pushing rod (1403) for pushing through a movably connected piston block (1402), and one end of the two corresponding pushing rods (1403) is jointly fixedly mounted with an extrusion plate (1404) for extrusion and fixing, and a damping spring (16) for pulling is fixedly mounted on a side of the piston block (1402) away from the pushing rod (1403), an exhaust port (1405) for exhaust is opened on the side of the inner wall of the conversion ring cavity (1201) away from the movable groove (1202), and a pressure relief valve (1406) for deflating is fixedly mounted on the inner wall of the exhaust port (1405), and an exhaust valve (1407) for exhaust is provided on the inner wall of the conversion ring cavity (1201) located in front of the exhaust port (1405).

5. The series-parallel resistance welding device for soft-pack batteries according to claim 3, characterized in that: The air supply assembly (15) includes a push rod (1501) fixedly mounted on one side of the surface of the movable block (1206), and a connecting elbow (1502) for communication is fixedly mounted on one side of the push rod (1501) inside the fixed groove plate (11), and an air guide pipe (1503) for air guidance is fixedly mounted on the side of the surface of the connecting elbow (1502) away from the movable block (1206), a first check valve (1504) for non-return is fixedly mounted on the inner wall of the air guide pipe (1503), and a second check valve (1505) for non-return is fixedly mounted on the side of the inner wall of the connecting elbow (1502) close to the conversion ring cavity (1201), and the side of the inner wall of the connecting elbow (1502) close to the movable block (1206) is fixedly connected to the end of the push rod (1501) via a sliding sealing block (1506).

6. The soft pack battery series-parallel resistance welding device according to claim 1, characterized in that: The bottom groove block (2) comprises a rectangular plate (201) and a rectangular groove (202) provided at the center in front of the top surface of the rectangular plate (201); the support platform (4) is a plate structure and has a rectangular notch provided in the front of the plate.

7. The device for series-parallel resistance welding of soft-pack batteries according to claim 3, characterized in that: The two first guide rods (1002) are arranged directly below the two second guide rods (1006), and the first guide rods (1002) and the second guide rods (1006) are arranged perpendicularly and staggered with each other.

8. The device for series-parallel resistance welding of soft-pack batteries according to claim 3, characterized in that: The surface of the movable block (1206) is tightly fitted to the inner wall of the movable groove (1202), the output end of the electric telescopic rod (5) is fixedly connected to the bottom surface of the support platform (4), and a foot switch (13) for starting is provided in front of the bottom groove block (2).

9. The device for series-parallel resistance welding of soft-pack batteries according to claim 4, characterized in that: The surfaces of the plurality of extrusion plates (1404) are respectively tightly fitted with the inner walls of the corresponding storage grooves (1203), and one end of the plurality of damping tension springs (16) is fixedly connected to the inner wall of the conversion ring cavity (1201).

10. The soft pack battery series-parallel resistance welding device according to claim 5, characterized in that: The two connecting bends (1502) are both L-shaped tube structures and connect the inner wall of the movable groove (1202) and the inner wall of the conversion ring cavity (1201). The surfaces of the two air guide tubes (1503) pass through the interior of the fixed groove plate (11) and extend to the surface of the fixed groove plate (11). The check directions of the two first check valves (1504) and the two second check valves (1505) are opposite.

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