An energy storage battery tray welding device

Abstract

The energy storage battery tray welding device disclosed in the application comprises a supporting mechanism, a clamping mechanism, a welding mechanism and a control mechanism. The clamping mechanism comprises a clamping assembly and a plurality of adjusting assemblies. The clamping assembly is movably connected with the supporting mechanism. The clamping assembly comprises an outer pressing piece and an inner pressing piece. The inner pressing piece comprises a pressing plate structure and a clamping structure. The pressing plate structure is hingedly connected with one clamping structure for clamping the battery tray at each of the two ends of the pressing plate structure in a spaced manner. The pressing plate structure is connected with the outer pressing piece. The two clamping structures are arranged in a spaced manner and are rotationally connected with the pressing plate structure. The adjusting assembly comprises an electromagnet and a driving piece. The abutting end of the driving piece is located in the gap. The side corresponding to the outer pressing piece of the clamping structure is connected with a magnet. Compared with the prior art, the battery tray can be smoothly separated from the clamping block after being heated and expanded.

Description

Technical Field

[0001] This application relates to the field of welding equipment technology, and in particular to a welding device for energy storage battery trays. Background Technology

[0002] The energy storage battery tray is one of the core structural components of an energy storage system, used to support and secure the battery modules. The tray is typically made of aluminum alloy, and the various components are joined and sealed using a welding process. During welding, specialized fixtures are required to position and hold the tray to ensure weld accuracy and quality. Therefore, the clamping effect of the welding fixtures in the energy storage battery tray welding device directly affects the welding efficiency of the energy storage battery tray.

[0003] Existing energy storage battery tray welding equipment typically includes pads and cylinders on the base plate, which are connected to the energy storage battery tray to limit its position in the horizontal plane. A flip-type clamping mechanism presses the energy storage battery tray from above. This clamping mechanism is generally driven by a cylinder-driven linkage that flips the pressure arm, causing the clamping block at the end of the pressure arm to fit against the tray surface, thereby fixing the tray in the welding station and limiting its position in the vertical direction.

[0004] However, existing energy storage battery tray welding devices maintain a rigid contact between the clamping block and the energy storage battery tray. During welding, the energy storage battery tray may thermally expand due to high temperatures. Since the energy storage battery tray lacks flexible compensation capabilities, even slight thermal expansion can cause an interference fit between the expanded tray and the clamping block. After welding is completed, the energy storage battery tray is difficult to separate smoothly from the clamping block, and forced demolding can easily cause surface damage or deformation. Solving these technical problems is a challenge that those skilled in the art need to address. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a welding device for energy storage battery trays.

[0006] The energy storage battery tray welding device provided in this application includes a support mechanism, a clamping mechanism, a welding mechanism, and a control mechanism. The support mechanism supports the battery tray. The clamping mechanism includes a clamping assembly and multiple adjusting assemblies. The clamping assembly is movably connected to the support mechanism. The clamping assembly includes an outer pressure member and an inner pressure member. The inner pressure member includes a pressure plate structure and a snap-fit ​​structure. A snap-fit ​​structure for clamping the battery tray is hinged to each end of the pressure plate structure. The pressure plate structure is connected to the outer pressure member, and a gap is provided between the snap-fit ​​structure and the outer pressure member. The adjusting assemblies include an electromagnet and a driving member. The abutting end of the driving member is located in the gap. The electromagnet is connected to the driving member. A magnet is connected to the side of the snap-fit ​​structure corresponding to the outer pressure member. The driving member is used to push at least two snap-fit ​​structures closer together via the abutting end to clamp the battery tray. The driving member is also used to drive the abutting end to move the magnetically connected electromagnet and magnet, thereby moving at least two snap-fit ​​structures away from each other to release the battery tray.

[0007] Understandably, during the clamping of the battery tray, the two locking structures abut against the battery tray and move away from each other. Each locking structure abuts against its corresponding abutment end, and the driving component forms physical support points for the locking structures, improving the stability of the clamping and fixing. During the release of the battery tray, the control mechanism controls the abutment ends to move away from the locking structures, thus providing a clearance zone. The flexible disassembly mechanism allows the thermally expanded battery tray a certain amount of deformation space, avoiding rigid interference between the thermally expanded battery tray and the internal pressure components, and preventing deformation and scratches caused by forcibly pulling out the battery tray.

[0008] In one embodiment, the outer pressure member has a first receiving cavity, and the inner pressure member is disposed in the first receiving cavity. The outer pressure member has multiple welding positions, all of which communicate with the first receiving cavity and are used for a welding mechanism to pass through.

[0009] Understandably, the external pressure component has multiple welding positions connecting to the first receiving cavity, creating a barrier-free welding operation channel. This welding channel allows the welding mechanism to smoothly penetrate and reach the welding area of ​​the battery tray while the clamping component is kept pressed down. This avoids spatial interference between the clamping components and the welding tools, ensuring the continuity of multi-point welding operations under the positioned and secured state.

[0010] In one embodiment, the clamping assembly includes a plurality of inner pressure members located on the same plane, the plurality of inner pressure members being spaced apart and connected to an outer pressure member.

[0011] Understandably, the multiple internal pressure components are coplanar and spaced apart, forming a multi-point distributed clamping structure for the battery tray. This balances the clamping forces on different areas of the battery tray, preventing warping and deformation of the large-sized battery tray under local pressure, and ensuring the stability of the battery tray welding process.

[0012] In one embodiment, the external pressure member includes a pressure plate portion and at least two connecting portions. The at least two connecting portions are spaced apart and are both connected to the pressure plate portion. The pressure plate portion and the two connecting portions form a first receiving cavity. The size of the connecting portions gradually increases from the end connected to the pressure plate portion toward the end away from the pressure plate portion.

[0013] Understandably, the first receiving cavity is enclosed by the pressure plate and the two gradually enlarging connecting parts, which strengthens the structural rigidity of the edge area of ​​the outer pressure component. The gradually enlarging connecting parts not only provide a stable lateral protection boundary for the inner pressure component, but also optimize the stress distribution to resist thermal expansion stress within a limited space, thereby improving the dimensional stability of the outer pressure component in high-temperature environments.

[0014] In one embodiment, the size of the snap-fit ​​structure gradually decreases from the end connected to the pressure plate structure toward the end away from the pressure plate structure.

[0015] Understandably, the tapered design of the snap-fit ​​mechanism provides superior maneuverability and flexibility at its end. When clamping and releasing the battery tray, the smaller end facilitates subtle opening and closing movements, reducing sluggishness in the action. Simultaneously, the tapered shape reduces the weight of the snap-fit ​​mechanism, minimizing the impact of inertia on the clamping action.

[0016] In one embodiment, the dimension of the connecting portion along the extending direction is larger than the dimension of the snap-fit ​​structure along the extending direction; the snap-fit ​​structure extends into a first receiving cavity along the direction of the connecting portion away from the pressure plate portion.

[0017] Understandably, the dimension of the connecting part along its extension direction is larger than that of the snap-fit ​​structure along its extension direction. This ensures that the core's clamping force-bearing area is covered within the protective range of the connecting part, preventing external impacts from damaging the core's clamping force-bearing area. The staggered arrangement of the snap-fit ​​structure and the connecting part provides both external protection and internal locking. The snap-fit ​​structure extends into a first receiving cavity, ensuring that the snap-fit ​​end can be connected unimpeded to the designated locking position on the battery tray.

[0018] In one embodiment, the connecting portion has a receiving groove, the driving component is disposed in the receiving groove, the abutting end is located outside the receiving groove and disposed in the gap, the abutting end includes a driving structure and a connecting structure, the connecting structure is rotatably connected to the driving structure, and the connecting structure is constructed to a shape adapted to the snap-fit ​​structure.

[0019] Understandably, the inclusion of a receiving groove in the connecting part to house the driving component makes efficient use of the physical space of the external pressure component, resulting in a more compact arrangement of the clamping mechanism. The shape matching between the connecting structure and the snap-fit ​​structure ensures a close fit during the transmission of support force, reduces wear at local stress points, and ensures smooth movement of the abutment end within the gap.

[0020] In one embodiment, the energy storage battery tray welding device includes multiple clamping mechanisms, which are arranged at equal intervals. The clamping mechanism also includes a flipping component, which is connected to the clamping component and the adjusting component. The flipping component is also connected to the support mechanism and the clamping component. The clamping component is flipped relative to the support mechanism by the flipping component.

[0021] Understandably, the equidistant distribution of multiple clamping mechanisms provides the energy storage battery tray welding device with the ability to clamp evenly over a large area, and the introduction of the flipping component gives the clamping component more freedom of movement compared to the support mechanism. Through the flipping action, a spacious operating channel can be created for loading and unloading, shortening the time spent picking up and placing battery trays.

[0022] In one embodiment, the flipping assembly includes a flipping member, a connecting member, and a sensor. The flipping member is connected to a support mechanism, the connecting member is connected to both the flipping member and the clamping assembly, the sensor is communicatively connected to a control mechanism, and the flipping member is controllably connected to the control mechanism.

[0023] Understandably, the flipping component and connecting components form a robust power transmission framework. Sensors provide real-time monitoring and feedback of the flipping angle and attitude, transmitting the data to the control mechanism. Based on this, the control mechanism precisely regulates the operation of the flipping component, preventing collisions caused by over-flipping or incomplete clamping, thus achieving high-precision automated scheduling of the clamping action.

[0024] In one embodiment, the flipping assembly further includes an adjusting member, which is electrically connected to the control mechanism, drivenly connected to the external pressure member, and slidably connected to the connecting member.

[0025] Understandably, the adjusting mechanism provides additional drive displacement for the external pressure component, allowing it to continue fine-tuning its translation after the initial flip and press-down. This gives the clamping mechanism secondary alignment capability in the horizontal plane, compensating for positional deviations during the initial flip and placement, and improving the accuracy of the engagement between the internal pressure component and the battery tray. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the pusher cylinder, which is the main feature of the energy storage battery tray welding device provided in this application embodiment.

[0027] Figure 2 This is a schematic diagram of the main support component of the energy storage battery tray welding device provided in the embodiments of this application.

[0028] Figure 3 yes Figure 1 A magnified view of part A in the middle.

[0029] Figure 4 This is a front view of the clamping mechanism provided in the embodiments of this application.

[0030] Figure 5 This is a top view of the clamping mechanism provided in the embodiments of this application.

[0031] Figure 6 This is a schematic diagram showing the main abutting end of the clamping mechanism provided in the embodiments of this application.

[0032] Figure 7 This is a schematic diagram of the clamping mechanism provided in the embodiments of this application, mainly showing the external pressure component.

[0033] Explanation of reference numerals in the attached figures: 1. Support mechanism; 11. Support component; 12. Pad block; 13. Pushing cylinder; 2. Clamping mechanism; 21. Clamping assembly; 211. External pressure component; 2111. First receiving cavity; 2112. Welding position; 2113. Pressure plate part; 2114. Connecting part; 21141. Receiving groove; 212. Internal pressure component; 2121. Pressure plate structure; 2122. Snap-fit ​​structure; 21221. Magnet; 213. Gap; 22. Adjustment assembly; 221. Electromagnet; 222. Driving component; 2221. Abutting end; 22211. Driving structure; 22212. Connecting structure; 23. Tilting assembly; 231. Tilting component; 232. Connecting component; 233. Sensor; 234. Adjustment component; 3. Welding mechanism; 4. Control mechanism. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1 To be continued Figure 7 This application will be described in further detail below.

[0035] In one embodiment, the energy storage battery tray welding device includes a support mechanism 1, a clamping mechanism 2, a welding mechanism 3, and a control mechanism 4. The support mechanism 1 supports the battery tray. The clamping mechanism 2 includes a clamping assembly 21 and multiple adjusting assemblies 22. The clamping assembly 21 is movably connected to the support mechanism 1. The clamping assembly 21 includes an outer pressure member 211 and an inner pressure member 212. The inner pressure member 212 includes a pressure plate structure 2121 and a snap-fit ​​structure 2122. A snap-fit ​​structure 2122 for clamping the battery tray is hinged to each of the two spaced ends of the pressure plate structure 2121. The pressure plate structure 2121 is connected to the outer pressure member 211, and the snap-fit ​​structure 2122 is connected to the outer pressure member 211. A gap 213 is provided; each adjustment component 22 is connected to the position corresponding to an external pressure member 211 and a snap-fit ​​structure 2122, and at least one snap-fit ​​structure 2122 is provided corresponding to one adjustment component 22; the adjustment component 22 includes an electromagnet 221 and a drive member 222, the abutting end 2221 of the drive member 222 is located in the gap 213, the electromagnet 221 is connected to the drive member 222, and a magnet 21221 is connected to the side of the snap-fit ​​structure 2122 corresponding to the external pressure member 211. The drive member 222 is used to push at least two snap-fit ​​structures 2122 closer together to clamp the battery tray via the abutting end 2221, and the drive member 222 is also used to drive the abutting end 2221 to move the magnetically connected electromagnet 221 and magnet 21221 to move, so as to drive at least two snap-fit ​​structures 2122 away from each other to release the battery tray.

[0036] In this embodiment, refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7The support mechanism 1 is located at the bottom of the energy storage battery tray welding device and is used to support the flat battery tray. The clamping mechanism 2 is movably mounted above the support mechanism 1. Inside the clamping assembly 21, the pressure plate structure 2121 is rectangular and larger than the size of the snap-fit ​​structure 2122. The two snap-fit ​​structures 2122 are symmetrically hinged to the two ends of the pressure plate structure 2121 via pivots. The driving component 222 can be a small cylinder, with the abutting end 2221 being the piston rod of the cylinder. The abutting end 2221 extends into the gap 213 and is correspondingly positioned with the snap-fit ​​structure 2122. The magnet 21221 is embedded in the side of the snap-fit ​​structure 2122 facing the outer pressure member 211, and the electromagnet 221 is fixed on the corresponding inner side of the outer pressure member 211. The welding mechanism 3 is connected to the top of the support mechanism 1, and the control mechanism 4 is electrically connected to the clamping mechanism 2 and the welding mechanism 3, respectively. The control mechanism 4 is also electrically connected to the electromagnet 221. The magnet 21221 can be a circular plate-shaped magnet. When the clamping component 21 clamps the battery tray, the electromagnet 221 is not energized. When the clamping component 21 releases the battery tray, the electromagnet 221 is energized and generates magnetism, attracting the magnet 21221 and causing the two snap-fit ​​structures 2122 to move away from each other.

[0037] In this application, when clamping the battery tray, two snap-fit ​​structures 2122 abut against the battery tray and move away from each other. Each snap-fit ​​structure 2122 abuts against its corresponding abutment end 2221. The driving member 222 forms a physical support point for the snap-fit ​​structure 2122, improving the stability of the clamping and fixing. The control mechanism 4 controls the abutment end 2221 to move away from the snap-fit ​​structure 2122, thereby providing a clearance area. The flexible disassembly mechanism allows the thermally expanded battery tray to have a certain amount of deformation space, avoiding rigid interference between the thermally expanded battery tray and the internal pressure member 212, and preventing deformation and scratches caused by forcibly pulling out the battery tray.

[0038] In this embodiment, the support mechanism 1 includes a support member 11, multiple pads 12, and multiple pushing cylinders 13. The support member 11 is plate-shaped and arranged horizontally, and the pads 12 can also be plate-shaped. Each pad 12 is correspondingly arranged with one pushing cylinder 13. The pad 12 and its corresponding pushing cylinder 13 cooperate to restrict the movement of the battery tray in the horizontal plane, and the pad 12, its corresponding pushing cylinder 13, and a clamping mechanism 2 cooperate to restrict the movement of the battery tray in the vertical direction.

[0039] In one embodiment, the energy storage battery tray welding device includes a plurality of clamping mechanisms 2, which are arranged at equal intervals. The clamping mechanism 2 also includes a flipping component 23, which is connected to the clamping component 21 and the adjusting component 22. The flipping component 23 is connected to the support mechanism 1 and the clamping component 21. The clamping component 21 is flipped relative to the support mechanism 1 by the flipping component 23.

[0040] In this embodiment, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The energy storage battery tray welding device includes eight clamping mechanisms 2, which are distributed on both sides of the support member 11. The four clamping mechanisms 2 on the same side are arranged at equal intervals along the length of the support member 11. A flipping assembly 23 is connected to the side of the support member 11, and a clamping assembly 21 is connected to the side of the flipping assembly 23 away from the support member 11.

[0041] Multiple clamping mechanisms 2, evenly distributed, provide the energy storage battery tray welding device with a large-area, uniform clamping capability. The introduction of the flipping component 23 gives the clamping component 21 greater freedom of movement compared to the support mechanism 1. Through the flipping action, a spacious operating channel is created for loading and unloading, shortening the time required to pick up and place the battery tray.

[0042] In one embodiment, the flipping assembly 23 includes a flipping member 231, a connecting member 232, and a sensor 233. The flipping member 231 is connected to the support mechanism 1, the connecting member 232 is connected to the flipping member 231 and the clamping assembly 21 respectively, the sensor 233 is communicatively connected to the control mechanism 4, and the flipping member 231 is controllably connected to the control mechanism 4.

[0043] In this embodiment, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 The flipper 231 is connected to the support 11, and the output end of the flipper 231 is connected to the connector 232. The flipper 231 can be a flipping cylinder, and the connector 232 can be a folding rod. One end of the connector 232 is connected to the external pressure member 211, and the other end of the connector 232 is connected to the flipper 231. The sensor 233 can be a photoelectric sensor. The sensor 233 is installed in the side sensing area of ​​the swing trajectory of the connector 232 to detect the real-time position of the connector 232. The control mechanism 4 is connected to the flipper 231 through an air circuit, and the control mechanism 4 is connected to the sensor 233 through a cable.

[0044] The flipping component 231 and the connecting component 232 form a stable power transmission framework. The sensor 233 provides real-time monitoring and feedback of the flipping angle and attitude, and transmits the data to the control mechanism 4. The control mechanism 4 precisely regulates the operation of the flipping component 231 to prevent the risk of collision caused by over-flipping or incomplete clamping, thus achieving high-precision automated scheduling of the clamping action.

[0045] In one embodiment, the flipping assembly 23 further includes an adjusting member 234, which is electrically connected to the control mechanism 4, drivenly connected to the external pressure member 211, and slidably connected to the connecting member 232.

[0046] In this embodiment, refer to Figures 1 to 7 The body of the adjusting component 234 is fixed to the outer frame surface of the connecting component 232. The slider structure at the top of the outer pressure component 211 is embedded in the guide rail at the bottom of the connecting component 232, forming a horizontal movement guide. The adjusting component 234 can be an electric push rod. The push-pull end of the adjusting component 234 is connected to the outer pressure component 211 to output lateral pushing force. The control mechanism 4 controls the operation of the adjusting component 234 through a signal line. The adjusting component 234 gives the clamping mechanism 2 the ability to perform secondary alignment in the horizontal plane, compensates for the positional deviation during the initial flipping and placement, and improves the accuracy of the inner pressure component 212 when engaging with the battery tray.

[0047] In one embodiment, the outer pressure member 211 has a first receiving cavity 2111, and the inner pressure member 212 is disposed in the first receiving cavity 2111. The outer pressure member 211 has a plurality of welding positions 2112, all of which are connected to the first receiving cavity 2111 and are used for the welding mechanism 3 to pass through.

[0048] In this embodiment, refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The first receiving cavity 2111 is connected to the outside. An external pressure member 211 has two welding positions 2112, which penetrate through the external pressure member 211. The actuating end of the welding mechanism 3 can extend from the outside of the external pressure member 211 along the two welding positions 2112 into the internal space and onto the surface of the battery tray directly below.

[0049] When the external pressure member 211 is moved to a horizontally positioned state, the welding mechanism 3 can pass through the welding positions 2112 to weld the battery tray. The external pressure member 211 has multiple welding positions 2112 communicating with the first receiving cavity 2111, creating a barrier-free welding operation channel. This welding channel allows the welding mechanism 3 to smoothly penetrate and reach the welding area of ​​the battery tray while the clamping assembly 21 is kept pressed. This avoids spatial interference between the clamping components and the welding tool, ensuring the continuity of multi-point welding operations in the positioned and secured state.

[0050] In one embodiment, the clamping assembly 21 includes a plurality of inner pressure members 212, which are located on the same plane and are spaced apart and connected to the outer pressure member 211.

[0051] In this embodiment, refer to Figure 4 , Figure 6 and Figure 7 Four inner pressure members 212 are arranged side by side in the first receiving cavity 2111. The pressure plate structures 2121 of the four inner pressure members 212 are all located on the same horizontal plane, and each inner pressure member 212 is individually fixed and suspended on the inner top surface of the outer pressure member 211. The four inner pressure members 212 are coplanar and spaced apart, forming a multi-point distributed pressing structure for the battery tray. This balances the clamping force on different areas of the battery tray, prevents warping deformation of the large-sized battery tray under local pressure, and ensures the stability of the battery tray welding process.

[0052] In one embodiment, the external pressure member 211 includes a pressure plate portion 2113 and at least two connecting portions 2114. The at least two connecting portions 2114 are spaced apart and are both connected to the pressure plate portion 2113. The pressure plate portion 2113 and the two connecting portions 2114 form a first receiving cavity 2111. The size of the connecting portion 2114 gradually increases from the end connected to the pressure plate portion 2113 toward the end away from the pressure plate portion 2113.

[0053] In this embodiment, refer to Figures 4 to 7 The pressure plate portion 2113 has a rectangular plate-like structure, and its dimensions are larger than those of the connecting portions 2114. The two connecting portions 2114, acting as extended side baffles, are vertically formed at both ends of the pressure plate portion 2113. The pressure plate portion 2113, together with the two connecting portions 2114, defines a first receiving cavity 2111. The dimensions of the connecting portions 2114, from their point of contact with the pressure plate portion 2113 to their bottom edge, exhibit a continuously increasing sloping profile.

[0054] The first receiving cavity 2111 is formed by the pressure plate portion 2113 and the two gradually enlarging connecting portions 2114, which strengthens the structural rigidity of the edge region of the outer pressure member 211. The gradually enlarging connecting portions 2114 not only provide a stable lateral protection boundary for the inner pressure member 212, but also optimize the stress distribution to resist thermal expansion stress within a limited space, thereby improving the dimensional stability of the outer pressure member 211 in high-temperature environments.

[0055] In one embodiment, the size of the snap-fit ​​structure 2122 gradually decreases from the end connected to the pressure plate structure 2121 toward the end away from the pressure plate structure 2121.

[0056] In this embodiment, refer to Figure 3 , Figure 4 , Figure 6 and Figure 7The size of the snap-fit ​​structure 2122 is smaller than the size of the connecting part 2114, and the snap-fit ​​structure 2122 and the pressure plate structure 2121 establish a hinged fit. The size of the snap-fit ​​structure 2122 at the position corresponding to the pressure plate structure 2121 is the largest, and the size of the snap-fit ​​structure 2122 on the side of the outer pressure member 211 away from the connecting member 232 is the smallest.

[0057] The snap-fit ​​structure 2122 features a tapered design, which provides superior obstacle avoidance and maneuverability at its end. When clamping and releasing the battery tray, the smaller end facilitates minute opening and closing movements, reducing sluggishness in the action response. Simultaneously, the tapered shape reduces the weight of the snap-fit ​​structure 2122, minimizing the impact of inertia on the clamping action.

[0058] In one embodiment, the dimension of the connecting portion 2114 along the extending direction is larger than the dimension of the snap-fit ​​structure 2122 along the extending direction; the snap-fit ​​structure 2122 extends from the connecting portion 2114 away from the pressure plate portion 2113 to form a first receiving cavity 2111.

[0059] In this embodiment, refer to Figure 5 , Figure 6 and Figure 7 The mounting pivot node of the snap-fit ​​structure 2122 is located at a lower position, and the end of the snap-fit ​​structure 2122 extending out of the first receiving cavity 2111 has a smaller size.

[0060] The dimension of the connecting portion 2114 along its extension direction is larger than that of the snap-fit ​​structure 2122 along its extension direction, so that the clamping force area of ​​the core is covered within the protection range of the connecting portion 2114, preventing external impacts from damaging the clamping force area of ​​the core. The staggered arrangement of the snap-fit ​​structure 2122 and the connecting portion 2114 takes into account both external protection and internal snap-fit. The snap-fit ​​structure 2122 extends into a first receiving cavity 2111, ensuring that the snap-fit ​​end can be connected to the designated locking position of the battery tray without obstruction.

[0061] In one embodiment, the connecting portion 2114 has a receiving groove 21141, the driving member 222 is partially disposed in the receiving groove 21141, and the abutting end 2221 is located outside the receiving groove 21141 and disposed in the gap 213. The abutting end 2221 includes a driving structure 22211 and a connecting structure 22212. The connecting structure 22212 is rotatably connected to the driving structure 22211, and the connecting structure 22212 is configured to fit the shape of the snap-fit ​​structure 2122.

[0062] In this embodiment, refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7A receiving groove 21141 is formed on the side wall of the connecting portion 2114 and extends through the connecting portion 2114. The power body of the driving member 222 is embedded in the receiving groove 21141. The forward-protruding abutting end 2221 of the driving member 222 extends out of the receiving groove 21141 and is located in the gap 213, stopping at the gap 213 on the back of the snap-fit ​​structure 2122. The driving structure 22211 and the front connecting structure 22212 are rotated and engaged by a ball joint, and the abutting arc surface of the connecting structure 22212 fits against the force-bearing back contour of the snap-fit ​​structure 2122.

[0063] A receiving groove 21141 is provided in the connecting part 2114 to accommodate the driving component 222, which makes reasonable use of the physical space of the external pressure component 211 and makes the arrangement of the clamping mechanism 2 more compact. The shape matching between the connecting structure 22212 and the snap-fit ​​structure 2122 ensures the fit during the transmission of support force, reduces wear at local stress points, and ensures smooth movement of the abutment end 2221 in the gap 213.

[0064] The implementation principle of this embodiment is as follows: Before starting the automatic welding process, the control mechanism 4 instructs the flipping component 23 to operate, causing the clamping component 21 to flip downwards to cover and align with the battery tray with the assistance of the support mechanism 1. Driven by the adjusting component 234, the external pressure component 211 slides to perform a second precise positioning. After alignment, the electromagnet 221 is de-energized, and the driving component 222 extends to push the abutment end 2221 into the gap 213. When the two snap-fit ​​structures 2122 slide against the battery tray, they will move away from each other. The snap-fit ​​structure 2122 abuts against the abutment end 2221 to clamp the battery tray. The welding torch of the welding mechanism 3 penetrates the welding position 2112 of the external pressure component 211 to perform welding operations on the tray. After welding is completed, the control mechanism 4 instructs the abutment end 2221 to move away from the locking structure 2122 and simultaneously energizes the electromagnet 221. The electromagnet 221 uses magnetic attraction to pull the magnet 21221 on the surface of the locking structure 2122, causing the locking structure 2122 to separate from the thermally expanded battery tray, achieving non-destructive demolding. Compared with the prior art, this application has the effect that the battery tray can be smoothly separated from the clamping block after thermal expansion.

[0065] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A welding device for energy storage battery trays, characterized in that, include: Support mechanism (1) is used to support the battery tray; The clamping mechanism (2) includes a clamping assembly (21) and multiple adjusting assemblies (22). The clamping assembly (21) is movably connected to the support mechanism (1). The clamping assembly (21) includes an outer pressure member (211) and an inner pressure member (212). The inner pressure member (212) includes a pressure plate structure (2121) and a snap-fit ​​structure (2122). Each end of the pressure plate structure (2121) is hinged with a snap-fit ​​structure (2122) for clamping a battery tray. The pressure plate structure (2121) is connected to the outer pressure member (211). A gap (213) is provided between the snap-fit ​​structure (2122) and the outer pressure member (211). The adjusting assembly (22) includes an electromagnet (221) and a driving member. (222), the abutting end (2221) of the driving member (222) is located in the gap (213), the electromagnet (221) is connected to the driving member (222), and the snap-fit ​​structure (2122) is connected to a magnet (21221) on the side corresponding to the external pressure member (211); the driving member (222) is used to push at least two snap-fit ​​structures (2122) closer to each other via the abutting end (2221) to clamp the battery tray, and the driving member (222) is also used to drive the abutting end (2221) to drive the electromagnet (221) and the magnet (21221) connected by magnetic attraction to move, so as to drive at least two snap-fit ​​structures (2122) to move away from each other to release the battery tray; Welding mechanism (3) is used for welding battery trays; The control mechanism (4) is electrically connected to the electromagnet (221), and the control mechanism (4) is driven to be connected to the drive unit (222).

2. The energy storage battery tray welding device according to claim 1, characterized in that, The outer pressure member (211) has a first receiving cavity (2111), and the inner pressure member (212) is disposed in the first receiving cavity (2111); the outer pressure member (211) has a plurality of welding positions (2112), and the plurality of welding positions (2112) are all connected to the first receiving cavity (2111), and the plurality of welding positions (2112) are used for the welding mechanism (3) to pass through.

3. The energy storage battery tray welding device according to claim 2, characterized in that, The clamping assembly (21) includes a plurality of inner pressure members (212), which are located on the same plane and are spaced apart and connected to the outer pressure member (211).

4. The energy storage battery tray welding device according to claim 1, characterized in that, The external pressure member (211) includes a pressure plate portion (2113) and at least two connecting portions (2114). The at least two connecting portions (2114) are spaced apart and are all connected to the pressure plate portion (2113). The pressure plate portion (2113) and the two connecting portions (2114) surround the first receiving cavity (2111). The size of the connecting portion (2114) gradually increases from the end connected to the pressure plate portion (2113) toward the end away from the pressure plate portion (2113).

5. The energy storage battery tray welding device according to claim 4, characterized in that, The dimensions of the snap-fit ​​structure (2122) gradually decrease from the end connected to the pressure plate structure (2121) toward the end away from the pressure plate structure (2121).

6. The energy storage battery tray welding device according to claim 5, characterized in that, The dimension of the connecting portion (2114) along the extension direction is larger than the dimension of the snap-fit ​​structure (2122) along the extension direction; the snap-fit ​​structure (2122) extends out of the first receiving cavity (2111) along the direction away from the pressure plate portion (2113) of the connecting portion (2114).

7. The energy storage battery tray welding device according to claim 6, characterized in that, The connecting part (2114) has a receiving groove (21141), the driving member (222) is partially disposed in the receiving groove (21141), the abutting end (2221) is located outside the receiving groove (21141) and disposed in the gap (213), the abutting end (2221) includes a driving structure (22211) and a connecting structure (22212), the connecting structure (22212) is rotatably connected to the driving structure (22211), and the connecting structure (22212) is constructed to fit the shape of the snap-fit ​​structure (2122).

8. The energy storage battery tray welding device according to claim 1, characterized in that, The energy storage battery tray welding device includes a plurality of clamping mechanisms (2), which are arranged at equal intervals. The clamping mechanism (2) also includes a flipping component (23), which is connected to the clamping component (21) and the adjusting component (22). The flipping component (23) is connected to the support mechanism (1) and the clamping component (21). The clamping component (21) is flipped relative to the support mechanism (1) by the flipping component (23).

9. The energy storage battery tray welding device according to claim 8, characterized in that, The flipping assembly (23) includes a flipping component (231), a connecting component (232), and a sensor (233). The flipping component (231) is connected to the support mechanism (1). The connecting component (232) is connected to the flipping component (231) and the clamping assembly (21) respectively. The sensor (233) is communicatively connected to the control mechanism (4). The flipping component (231) is controllably connected to the control mechanism (4).

10. The energy storage battery tray welding device according to claim 9, characterized in that, The flipping assembly (23) further includes an adjusting member (234), which is electrically connected to the control mechanism (4), and is drivenly connected to the external pressure member (211). The external pressure member (211) is slidably connected to the connecting member (232).

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