Energy storage battery module electrode welding bidirectional sliding double copper nozzle pneumatic clamping mechanism

Abstract

This invention discloses a bidirectional sliding double-copper-nozzle pneumatic pressing mechanism for welding electrode sheets in energy storage battery modules, relating to the field of battery module electrode sheet welding technology. It includes a pneumatic drive component, on which a pressing plate mounting component is mounted. Two elastic pressing components are mounted at the bottom of the pressing plate mounting component. The two elastic pressing components are used to flexibly press the electrode sheet. Two battery positioning components are mounted on the pneumatic drive component. The two battery positioning components are symmetrically installed. Electrode sheet gas supply components are respectively mounted on the two battery positioning components. The electrode sheet gas supply components allow for real-time supply of protective gas to the area below the welding point of the battery terminal, in conjunction with side exhaust channels and inclined exhaust channels, targeting the area where the electrode sheet meets the protruding post of the battery terminal. This solves the problem that current electrode sheet pressing mechanisms are not convenient for providing stable air pressure protection to the upper and lower sides of the electrode sheet, nor for automatically monitoring the electrode sheet position.

Description

Technical Field

[0001] This invention relates to the field of battery module electrode welding technology, specifically a bidirectional sliding double copper nozzle pneumatic clamping mechanism for welding electrode sheets of energy storage battery modules. Background Technology

[0002] In actual energy storage battery manufacturing, battery terminals require welding of electrode plates to facilitate subsequent conductive connections. The battery terminals feature a raised welding protrusion, which, in conjunction with a laser welding machine, allows for rapid fusion welding of the electrode plate and the bottom welding protrusion. The welding quality of the electrode plate directly affects the subsequent conductivity. Current electrode plate clamping mechanisms typically use direct pressing for electrode plate positioning, which is not conducive to elastically adapting and clamping the electrode plate, easily causing damage. Furthermore, traditional electrode plate clamping mechanisms usually only provide gas protection for the upper surface of the electrode plate. However, because the welding protrusion at the battery terminals is a raised structure, the lower surface of the electrode plate is prone to oxidation during welding, making it difficult to provide stable gas pressure protection for both sides of the electrode plate. It also hinders automatic monitoring of the electrode plate position. Moreover, traditional methods relying on controlling the laser welding time cannot accurately determine the electrode plate's welding status, and are susceptible to defects such as incomplete welds due to laser misalignment.

[0003] To address this, we propose a bidirectional sliding double copper nozzle pneumatic clamping mechanism for welding electrode sheets in energy storage battery modules. Summary of the Invention

[0004] The purpose of this invention is to provide a bidirectional sliding double copper nozzle pneumatic clamping mechanism for welding electrode sheets in energy storage battery modules, so as to solve the problems mentioned in the background art that the current electrode clamping mechanism is not convenient for providing stable air pressure protection for the upper and lower sides of the electrode sheet, nor is it convenient for automatically monitoring the position of the electrode sheet.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a bidirectional sliding double-copper-nozzle pneumatic pressing mechanism for welding electrode sheets of energy storage battery modules, comprising a pneumatic drive component, on which a pressing plate mounting component is mounted, and two elastic pressing components are mounted at the bottom of the pressing plate mounting component; the two elastic pressing components are used to flexibly press the electrode sheets; two battery positioning components are mounted on the pneumatic drive component; the two battery positioning components are symmetrically installed; electrode sheet gas supply components are respectively mounted on the two battery positioning components; the electrode sheet gas supply components are used to reduce oxidation of the molten pool at the bottom of the electrode sheet; electrode sheet detection components are respectively mounted on the two electrode sheet gas supply components; the electrode sheet detection components are used to ensure the welding accuracy of the electrode sheets; the pneumatic drive component includes: a mounting frame, a drive mounting plate, and a guide shaft, the drive mounting plate is fixedly mounted on the mounting frame by bolts; the bottom of the mounting frame has two rows of through holes; two guide shafts are fixedly mounted on the drive mounting plate; the mounting frame has an L-shaped structure.

[0006] Preferably, the pneumatic drive component further includes: a drive cylinder, which is fixedly mounted on the back of the drive mounting plate; the drive cylinder is used to drive the tablet mounting component to move downward.

[0007] Preferably, the pneumatic drive component further includes: a control relay, a battery, and an indicator light; two control relays are fixedly mounted on the back of the drive mounting plate; two batteries are fixedly mounted on the back of the drive mounting plate; the two control relays are electrically connected to the control switch of the laser welding machine; the control relays are normally open relays; and two indicator lights are fixedly mounted on the mounting bracket.

[0008] Preferably, the tablet mounting component includes: a pressing slide plate, a cylinder block, a movable mounting shell, protruding strips, and electrical terminals. The pressing slide plate is slidably mounted on two guide shafts. A cylinder block is fixedly mounted on the back of the pressing slide plate, and the cylinder block slidably fits against a drive mounting plate. The cylinder block passes through the drive mounting plate. The output shaft of the drive cylinder is fixedly mounted on the cylinder block. Two movable mounting shells are fixedly mounted on the pressing slide plate, and the bottom of the movable mounting shells is provided with through holes. Four protruding strips are fixedly mounted inside the through holes at the bottom of the movable mounting shells. Electrical terminals are fixedly mounted on the sides of the two movable mounting shells respectively.

[0009] Preferably, the elastic pressing component includes: a pressing copper nozzle, a vent hole, a tension spring, and an upper air supply pipe. The pressing copper nozzle has four sliding grooves. The pressing copper nozzle is slidably fitted into a through hole at the bottom of the movable mounting housing. The pressing copper nozzle has a through hole in the middle. The protruding strip is slidably installed in the corresponding sliding groove on the outer side of the pressing copper nozzle. The pressing copper nozzle has a vent hole, which is inclined. The upper air supply pipe is fixedly installed on the pressing copper nozzle. The upper air supply pipe is connected to the vent hole. The upper air supply pipe is connected to a protective gas source. A tension spring is fitted on the pressing copper nozzle. One end of the tension spring is fixedly connected to the pressing copper nozzle, and the other end is fixedly connected to the inner side of the movable mounting housing. The bottom end of the pressing copper nozzle is used to elastically press the electrode sheet.

[0010] Preferably, the battery positioning component includes: a channel steel bracket, a drive cylinder, a clamping block, and a sliding sleeve. The channel steel bracket is fixedly installed at the bottom of the mounting frame. The drive cylinder is fixedly installed on the channel steel bracket, and the output shaft of the drive cylinder passes through the channel steel bracket. The clamping block is fixedly installed on the output shaft of the drive cylinder, and the clamping block slides against the channel steel bracket. The two inner sides of the end of the clamping block are inclined structures. The clamping block is used to clamp the battery. The sliding sleeve is fixedly installed on the channel steel bracket.

[0011] Preferably, the electrode gas replenishment component includes: a gas replenishment sliding shell, a slot, a side exhaust groove, and an inclined exhaust groove. The gas replenishment sliding shell is slidably sleeved on the sliding shell. The front end of the gas replenishment sliding shell is provided with a slot for inserting a battery terminal. The top of the gas replenishment sliding shell is flush with the top of the battery terminal. The gas replenishment sliding shell has a side exhaust groove. The gas replenishment sliding shell has two inclined exhaust grooves, which are inclined. The gas replenishment sliding shell is located below the electrode.

[0012] Preferably, the electrode gas supply component further includes: a gas supply electric cylinder and a gas supply pipe. The gas supply electric cylinder is fixedly installed at the tail end of the gas supply sliding shell, and the output shaft of the gas supply electric cylinder passes through the gas supply sliding shell. The output shaft of the gas supply electric cylinder is fixedly installed on the channel steel bracket. The gas supply pipe is fixedly installed on the gas supply sliding shell. The gas supply pipe is connected to an external protective gas source.

[0013] Preferably, the electrode detection component includes: a detection contact strip and a contact plate, with the detection contact strip fixedly installed on both sides of the gas replenishment sliding shell; the detection contact strip is an L-shaped elastic steel sheet; the top edges of the two detection contact strips are respectively higher than the top of the gas replenishment sliding shell; and a contact plate is fixedly installed on the front detection contact strip.

[0014] Preferably, the electrode detection component further includes: a series bar, which is fixedly embedded on the gas replenishment sliding shell; the series bar is fixedly connected to two detection contact bars; the indicator light, contact plate, contact terminal, control relay and battery are connected in series by wires.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention employs an elastic pressing component that works in conjunction with the driving mechanism of the pressing plate mounting component to achieve elastic pressing of the electrode sheet, avoiding damage to the electrode sheet by compression. At the same time, by using the elastic pressing method of the pressing copper nozzle, the electrode sheet can be stably attached to the protrusion of the battery terminal as the laser hot melt welding proceeds. As the protrusion is hot melted and the height of the electrode sheet decreases, the weld point can still be kept stable. The structure is simple to control, and with the help of the vent hole, protective gas can be supplied in real time, which can ensure the anti-oxidation performance of the upper surface of the electrode sheet.

[0017] By employing an electrode gas supply component, the electrode can be inserted below the welding point of the battery terminal. Combined with side and inclined exhaust channels, protective gas can be supplied in real time to the area where the electrode and the protrusion of the battery terminal meet, which can further improve the oxidation resistance of the welding point and improve the welding point formation quality. At the same time, this structure does not affect the normal downward movement of the electrode during laser welding as it melts and welds, achieving non-destructive gas protection and avoiding the problem that traditional gas protection structures cannot guarantee the welding point quality at the molten connection point below the electrode that is blocked.

[0018] The electrode detection device can automatically monitor the electrode's positioning. Due to the high melting temperature of the electrode, the detection electrode strip allows the electrode to descend to a height close to the battery terminal as it is melted by the laser during welding. When the welding joint meets the requirements, the laser welding machine automatically stops welding, avoiding burn-through problems caused by laser aging and power drift. This structure, by detecting the electrode's positioning, can easily and intuitively reflect the welding quality of the electrode joint to the staff. If the protrusion of the battery terminal attached to the electrode fails to melt effectively, the staff can also be notified and make timely adjustments, reducing subsequent desoldering and defect rates. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the bidirectional sliding double copper nozzle pneumatic pressing mechanism for welding the electrode sheets of the energy storage battery module of the present invention.

[0020] Figure 2 This is a schematic diagram of the pneumatic drive component structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the installation position of the indicator light according to the present invention;

[0022] Figure 4 This is a schematic diagram of the tablet mounting component structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the elastic pressing component structure of the present invention;

[0024] Figure 6 This is a cross-sectional view of the air guide hole structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the battery positioning component structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the electrode gas supply component structure of the present invention;

[0027] Figure 9 For the present invention Figure 7 Enlarged view of the structure of region E in the middle;

[0028] Figure 10 For the present invention Figure 8 Enlarged view of the structure of the F region.

[0029] In the diagram: 1. Pneumatic drive component; 101. Mounting bracket; 102. Drive mounting plate; 1021. Guide shaft; 103. Drive cylinder; 104. Control relay; 105. Battery; 106. Indicator light; 2. Pressing plate mounting component; 201. Pressing slide plate; 2011. Cylinder block; 202. Movable mounting shell; 2021. Raised strip; 203. Electrical terminal; 3. Elastic pressing component; 301. Pressing copper nozzle; 3011. Air guide hole; 30 2. Tension spring; 303. Upper air supply pipe; 4. Battery positioning component; 401. Channel steel bracket; 402. Drive cylinder; 403. Clamping block; 404. Sliding sleeve; 5. Electrode air supply component; 501. Air supply sliding shell; 5011. Slot; 5012. Side exhaust groove; 5013. Inclined exhaust groove; 502. Air supply cylinder; 503. Air supply pipe; 6. Electrode detection component; 601. Detection connector strip; 6011. Connector piece; 602. Series strip. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figures 1 to 10 As shown:

[0032] This invention provides a technical solution: a bidirectional sliding double-copper-nozzle pneumatic pressing mechanism for welding electrode sheets of energy storage battery modules, comprising a pneumatic drive component 1, a pressing plate mounting component 2 mounted on the pneumatic drive component 1, and two elastic pressing components 3 mounted at the bottom of the pressing plate mounting component 2; the two elastic pressing components 3 are used to flexibly press the electrode sheets; two battery positioning components 4 are mounted on the pneumatic drive component 1; the two battery positioning components 4 are symmetrically installed; electrode sheet gas supply components 5 are respectively mounted on the two battery positioning components 4; the electrode sheet gas supply components 5 are used to reduce oxidation of the molten pool at the bottom of the electrode sheet; electrode sheet detection components 6 are respectively mounted on the two electrode sheet gas supply components 5; the electrode sheet detection components 6 are used to ensure the welding accuracy of the electrode sheets; the pneumatic drive component 1 includes: a mounting frame 101, a drive mounting plate 102, and a guide shaft 1021, the drive mounting plate 102 is fixedly mounted on the mounting frame 101 by bolts; the mounting frame 101 has two rows of through holes at the bottom; two guide shafts 1021 are fixedly mounted on the drive mounting plate 102; the mounting frame 101 has an L-shaped structure.

[0033] The pneumatic drive component 1 further includes a drive cylinder 103, which is fixedly mounted on the back of the drive mounting plate 102. The drive cylinder 103 is used to drive the tablet mounting component 2 to move downward. The tablet mounting component 2 includes a pressing slide plate 201, a cylinder block 2011, a movable mounting shell 202, a protruding strip 2021, and an electrical terminal 203. The pressing slide plate 201 is slidably mounted on two guide shafts 1021. The cylinder block 2011 is fixedly mounted on the back of the pressing slide plate 201, and the cylinder block 2011 slides against the drive mounting plate 102. The cylinder block 2011 passes through the drive mounting plate 102. The output shaft of the drive cylinder 103 is fixedly mounted on the cylinder block 2011; two movable mounting shells 202 are fixedly mounted on the pressing slide plate 201, and the bottom of the movable mounting shell 202 is provided with a through hole; four protruding strips 2021 are fixedly mounted inside the through hole at the bottom of the movable mounting shell 202; electrical terminals 203 are fixedly mounted on the sides of the two movable mounting shells 202 respectively; the elastic pressing component 3 includes: a pressing copper nozzle 301, an air guide hole 3011, a tension spring 302 and an upper air supply pipe 303, and the pressing copper nozzle 301 is provided with four sliding grooves; the pressing copper nozzle 301 is slidably sleeved on the bottom of the movable mounting shell 202. Inside the through hole; a through hole is provided in the middle of the lower pressure copper nozzle 301; a raised strip 2021 is slidably installed in the corresponding groove on the outside of the lower pressure copper nozzle 301; a vent hole 3011 is opened on the lower pressure copper nozzle 301, and the vent hole 3011 is inclined; an upper air supply pipe 303 is fixedly installed on the lower pressure copper nozzle 301; the upper air supply pipe 303 is connected to the vent hole 3011; a protective gas source is connected to the upper air supply pipe 303; a tension spring 302 is sleeved on the lower pressure copper nozzle 301; one end of the tension spring 302 is fixedly connected to the lower pressure copper nozzle 301, and the other end of the tension spring 302 is fixedly connected to the inside of the movable mounting shell 202; the lower pressure copper nozzle 301... 01 The bottom end is used for elastic pressing of the electrode sheet; the elastic pressing component 3 can work with the driving of the pressing component 2 to achieve elastic pressing of the electrode sheet, avoiding squeezing and damage to the electrode sheet. At the same time, by using the elastic pressing copper nozzle 301, the electrode sheet can be stably attached to the protrusion of the battery terminal as the laser hot melt welding is carried out. As the protrusion is hot melted, the weld point can still be kept stable when the electrode sheet height drops. The structure is simple to control. At the same time, with the vent hole 3011, protective gas can be supplied in real time, which can ensure the anti-oxidation performance of the electrode sheet surface. This structure can weld the electrode sheets of both terminals of the battery at the same time, which is more efficient.

[0034] The battery positioning component 4 includes: a channel steel bracket 401, a drive cylinder 402, a clamping block 403, and a sliding sleeve 404. The channel steel bracket 401 is fixedly installed at the bottom of the mounting frame 101. The drive cylinder 402 is fixedly installed on the channel steel bracket 401, and the output shaft of the drive cylinder 402 passes through the channel steel bracket 401. The clamping block 403 is fixedly installed on the output shaft of the drive cylinder 402, and the clamping block 403 slides against the channel steel bracket 401. The two inner sides of the end of the clamping block 403 are inclined structures. The clamping block 403 is used to clamp the battery. The sliding sleeve 404 is fixedly installed on the channel steel bracket 401; the electrode gas supply component 5 includes: a gas supply sliding shell 501, a slot 5011, a side exhaust groove 5012, and an inclined exhaust groove 5013. The gas supply sliding shell 501 is slidably sleeved on the sliding sleeve 404; the front end of the gas supply sliding shell 501 is provided with a slot 5011, and the slot 5011 is used to insert the battery terminal; the top of the gas supply sliding shell 501 is flush with the top of the battery terminal; a side exhaust groove 5012 is provided on the gas supply sliding shell 501; two inclined exhaust grooves are provided on the gas supply sliding shell 501. The electrode includes an air vent 5013, with two inclined exhaust vents 5013 arranged at an angle; a gas replenishment sliding shell 501 is located below the electrode; the electrode gas replenishment component 5 also includes a gas replenishment electric cylinder 502 and a gas replenishment pipe 503. The gas replenishment electric cylinder 502 is fixedly installed at the tail of the gas replenishment sliding shell 501, and the output shaft of the gas replenishment electric cylinder 502 passes through the gas replenishment sliding shell 501. The output shaft of the gas replenishment electric cylinder 502 is fixedly installed on the channel steel bracket 401; the gas replenishment pipe 503 is fixedly installed on the gas replenishment sliding shell 501; the gas replenishment pipe 503 is externally connected to a protective gas source; the electrode gas replenishment component 5 is used. It can be inserted below the welding point of the battery terminal. With the side exhaust groove 5012 and the inclined exhaust groove 5013, protective gas can be supplied in real time to the area where the protrusion of the electrode and the battery terminal meet. This can further improve the anti-oxidation effect of the welding point and improve the welding point forming quality. The structure is simple to control. This structure does not affect the normal downward movement of the electrode during laser welding as it melts and welds, achieving non-destructive gas protection. It avoids the problem that traditional gas protection structures cannot guarantee the welding point quality at the molten connection point below the electrode that is blocked. The docking method of this structure is simple and fast.

[0035] In Example 2, based on Example 1, the pneumatic drive component 1 further includes: a control relay 104, a battery 105, and an indicator light 106. Two control relays 104 are fixedly mounted on the back of the drive mounting plate 102; two batteries 105 are fixedly mounted on the back of the drive mounting plate 102; the two control relays 104 are electrically connected to the control switch of the laser welding machine; the control relays 104 are normally open relays; two indicator lights 106 are fixedly mounted on the mounting bracket 101; the electrode detection component 6 includes: a detection contact strip. 601, a contact piece 6011, and detection contact strips 601 are fixedly installed on both sides of the gas-replenishing sliding shell 501, with insulation between the detection contact strips 601 and the gas-replenishing sliding shell 501; the detection contact strips 601 are L-shaped elastic steel sheets; the top edges of the two detection contact strips 601 are respectively higher than the top of the gas-replenishing sliding shell 501; a contact piece 6011 is fixedly installed on the front detection contact strip 601; the electrode detection component 6 also includes: a series bar 602, a series bar 602 is fixedly embedded on the gas-replenishing sliding shell 501; the series bar 6011... 2. Fixedly connected to two detection contact strips 601; the indicator light 106, contact piece 6011, contact terminal 203, control relay 104, and battery 105 are connected in series by wires; the electrode detection component 6 can automatically monitor the electrode's position; due to the high melting temperature of the electrode, the detection contact strip 601 can be used to realize that during the electrode welding process, as the protrusion of the battery terminal below the electrode is melted by the laser, the electrode descends to a height close to the battery terminal. When the welding joint fusion requirement is met, the laser welding machine is automatically controlled to stop welding, which can avoid the problem of weld point burn-through caused by factors such as laser aging and power drift; this structure can easily and intuitively reflect the welding joint fusion quality of the electrode to the staff by detecting the electrode's position. If the protrusion of the battery terminal is not fully melted or the electrode is not effectively fused, the staff can quickly identify the fault through the indicator light 106 and make timely adjustments, reducing desoldering defects and lowering the product defect rate. The structure is simple and intuitive, which can improve the overall welding quality of the battery electrode, and the detection method is direct and reliable.

[0036] The working principle of this embodiment is as follows: Bolts are passed through the through holes in the mounting bracket 101 to secure it to the laser welding platform. Two laser welding heads can be bolted onto the mounting bracket 101, ensuring the laser point passes through the downward pressure copper nozzle 301. The battery is then placed between the two clamping blocks 403. Utilizing the bending characteristic of the battery casing's outer ring, the clamping blocks 403 are extended by the drive cylinder 402 to hold the battery. The inclined surfaces on the two inner sides of the clamping blocks 403 facilitate positioning of the battery edges. Subsequently, the air-filling cylinder 502 is controlled to move the air-filling sliding shell 501, causing the slot 5011 to insert into the battery terminal. The electrode plate is then placed above the battery terminal, as shown in the attached diagram. Figure 1As shown, after the two electrodes are installed, the drive cylinder 103 can be controlled to move the pressing slide 201 downwards. At this time, the two pressing copper nozzles 301 will be driven to press and adhere to the electrodes. As the drive cylinder 103 moves the pressing slide 201 further downwards, the pressing copper nozzles 301 are stopped by the electrodes, and the tension spring 302 will be stretched. The pressing copper nozzles 301 maintain elasticity and press against the electrodes. At this time, the bottom of the electrodes is stopped by the welded protrusion in the middle of the battery terminal. Under the pressure of the pressing copper nozzles 301, the upper surface of the electrodes adheres to the pressing copper nozzles 301. There is a gap between the bottom of the electrode and the detection contact strip 601. The gap height is the height of the protrusion in the middle of the battery terminal. At this time, the upper gas supply pipe 303 keeps supplying gas in real time. The exhaust can be guided through the air guide hole 3011 to achieve real-time supply of protective gas to the upper surface of the electrode solder joint. At the same time, the protective gas source connected to the gas supply pipe 503 will also supply gas in real time and discharge it through the side exhaust groove 5012 and the inclined exhaust groove 5013. Protective gas is supplied to the bottom of the electrode and the protrusion of the battery terminal in real time to prevent oxidation and achieve anti-oxidation protection on both sides of the electrode.

[0037] During the electrode welding process, as the laser welding temperature rises between the electrode and the battery terminal protrusion, the protrusion of the battery terminal gradually melts, causing the electrode height to drop. After the electrode drops, it will contact the end of the detection contact strip 601. At this time, the detection contact strip 601 and the electrode are in contact and conductive. The pressure copper nozzle 301 remains in contact with the electrode, and there is conductivity between the pressure copper nozzle 301 and the movable mounting housing 202. This achieves conductivity between the contact piece 6011 and the contact terminal 203. At this time, the indicator light 106 lights up to indicate this, and the corresponding control relay 104 is also energized. At this time, the control relay 104 can control the laser. Power off the welding machine to avoid continuing welding heating after the electrode has been welded in place. If, during actual welding, the laser head of the laser welding machine is affected by dust or other factors, the temperature of the laser heating area may not meet the standard, resulting in ineffective fusion of the electrode and the protrusion of the battery terminal, insufficient melting of the protrusion of the battery terminal, and insufficient downward movement of the electrode. In this case, the electrode cannot adhere to the detection contact strip 601, the circuit cannot be conducted, and the indicator light 106 will not illuminate effectively after welding. In such cases, staff need to promptly inspect and thoroughly investigate the problem to improve welding quality.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bidirectional sliding double copper nozzle pneumatic clamping mechanism for welding electrode sheets of energy storage battery modules, comprising a pneumatic drive component (1), wherein a pressing plate mounting component (2) is mounted on the pneumatic drive component (1), characterized in that: The bottom of the pressing assembly (2) has two elastic pressing members (3); the two elastic pressing members (3) are used to flexibly press the electrode sheet; Two battery positioning components (4) are installed on the pneumatic drive component (1); the two battery positioning components (4) are installed symmetrically; an electrode gas supply component (5) is installed on each of the two battery positioning components (4); the electrode gas supply component (5) is used to reduce the oxidation of the bottom molten pool of the electrode. Each of the two electrode gas supply components (5) is equipped with an electrode detection component (6); the electrode detection component (6) is used to ensure the welding accuracy of the electrode. The pneumatic drive component (1) includes: a mounting bracket (101), on which a drive mounting plate (102) is fixedly mounted by bolts; the bottom of the mounting bracket (101) is provided with two rows of through holes; two guide shafts (1021) are fixedly mounted on the drive mounting plate (102); the mounting bracket (101) has an L-shaped structure; The battery positioning component (4) includes: a channel steel bracket (401) and a sliding sleeve (404). The electrode gas replenishing component (5) includes: a gas replenishing sliding shell (501), which is slidably sleeved on a sliding shell (404); the front end of the gas replenishing sliding shell (501) is provided with a slot (5011), and the slot (5011) is used to insert a battery terminal; the top of the gas replenishing sliding shell (501) is flush with the top of the battery terminal; a side exhaust groove (5012) is provided on the gas replenishing sliding shell (501); two inclined exhaust grooves (5013) are provided on the gas replenishing sliding shell (501), and the two inclined exhaust grooves (5013) are inclined; the gas replenishing sliding shell (501) is located below the electrode.

2. The bidirectional sliding double copper nozzle pneumatic clamping mechanism for welding electrode sheets of energy storage battery modules according to claim 1, characterized in that: The pneumatic drive component (1) further includes a drive cylinder (103), which is fixedly installed on the back of the drive mounting plate (102); the drive cylinder (103) is used to drive the tablet mounting component (2) to move downward.

3. The bidirectional sliding double copper nozzle pneumatic clamping mechanism for welding electrode sheets of energy storage battery modules according to claim 2, characterized in that: The pneumatic drive component (1) further includes: a control relay (104), two control relays (104) are fixedly mounted on the back of the drive mounting plate (102); two batteries (105) are fixedly mounted on the back of the drive mounting plate (102); the two control relays (104) are electrically connected to the control switch of the laser welding machine; the control relays (104) are normally open relays; two indicator lights (106) are fixedly mounted on the mounting bracket (101).

4. The bidirectional sliding double copper nozzle pneumatic clamping mechanism for welding electrode sheets of energy storage battery modules according to claim 3, characterized in that: The tablet mounting component (2) includes: a pressing slide plate (201), which is slidably mounted on two guide shafts (1021); a cylinder block (2011) is fixedly mounted on the back of the pressing slide plate (201), and the cylinder block (2011) is slidably attached to the drive mounting plate (102); the cylinder block (2011) passes through the drive mounting plate (102); the output shaft of the drive cylinder (103) is fixedly mounted on the cylinder block (2011); two movable mounting shells (202) are fixedly mounted on the pressing slide plate (201), and the bottom of the movable mounting shells (202) is provided with through holes; four protruding strips (2021) are fixedly mounted inside the through holes at the bottom of the movable mounting shells (202); and electrical terminals (203) are fixedly mounted on the sides of the two movable mounting shells (202).

5. The bidirectional sliding double copper nozzle pneumatic clamping mechanism for welding electrode sheets of energy storage battery modules according to claim 4, characterized in that: The elastic pressing component (3) includes: a pressing copper nozzle (301), which has four sliding grooves; the pressing copper nozzle (301) is slidably fitted into a through hole at the bottom of the movable mounting shell (202); the pressing copper nozzle (301) has a through hole in the middle; the protruding strip (2021) is slidably installed in the corresponding sliding groove on the outside of the pressing copper nozzle (301); the pressing copper nozzle (301) has an air guide hole (3011), and the air guide hole (3011) is inclined; An upper air supply pipe (303) is fixedly installed on the lower pressure copper nozzle (301); the upper air supply pipe (303) is connected to the air guide hole (3011); the upper air supply pipe (303) is connected to a protective gas source; a tension spring (302) is sleeved on the lower pressure copper nozzle (301); one end of the tension spring (302) is fixedly connected to the lower pressure copper nozzle (301), and the other end of the tension spring (302) is fixedly connected to the inside of the movable mounting shell (202); the bottom end of the lower pressure copper nozzle (301) is used to elastically press the electrode plate.

6. The bidirectional sliding double copper nozzle pneumatic clamping mechanism for welding electrode sheets of energy storage battery modules according to claim 4, characterized in that: The channel steel bracket (401) is fixedly installed at the bottom of the mounting frame (101); a drive cylinder (402) is fixedly installed on the channel steel bracket (401), and the output shaft of the drive cylinder (402) passes through the channel steel bracket (401); a clamping block (403) is fixedly installed on the output shaft of the drive cylinder (402), and the clamping block (403) slides against the channel steel bracket (401); the two inner sides of the end of the clamping block (403) are inclined structures; the clamping block (403) is used to clamp the battery; the sliding sleeve (404) is fixedly installed on the channel steel bracket (401).

7. The bidirectional sliding double copper nozzle pneumatic clamping mechanism for welding electrode sheets of energy storage battery modules according to claim 6, characterized in that: The electrode gas supply component (5) further includes: a gas supply pipe (503), a gas supply electric cylinder (502) is fixedly installed at the tail of the gas supply sliding shell (501), and the output shaft of the gas supply electric cylinder (502) passes through the gas supply sliding shell (501). The output shaft of the gas supply electric cylinder (502) is fixedly installed on the channel steel bracket (401); the gas supply pipe (503) is fixedly installed on the gas supply sliding shell (501); and the gas supply pipe (503) is connected to an external protective gas source.

8. The bidirectional sliding double copper nozzle pneumatic clamping mechanism for welding electrode sheets of energy storage battery modules according to claim 6, characterized in that: The electrode detection component (6) includes: a detection contact strip (601), and detection contact strips (601) are fixedly installed on both sides of the gas replenishment sliding shell (501); the top edges of the two detection contact strips (601) are higher than the top of the gas replenishment sliding shell (501); a contact piece (6011) is fixedly installed on the front detection contact strip (601).

9. The bidirectional sliding double copper nozzle pneumatic clamping mechanism for welding electrode sheets of energy storage battery modules according to claim 8, characterized in that: The electrode detection component (6) further includes: a series bar (602), which is fixedly embedded on the gas filling sliding shell (501); the series bar (602) is fixedly connected to two detection contact bars (601); the indicator light (106), contact plate (6011), contact terminal (203), control relay (104) and battery (105) are connected in series by wires.

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