A corner cutting device for battery pack frame profile production

Abstract

The application discloses a kind of battery pack frame section production cutting angle device, it is related to cutting blade field, it solves the problem that existing battery pack frame section production cutting angle device needs to cut angle, multiple clamping transport is easy to produce positioning error when using, operation process is complicated, including machine body, lifting platform, cutting angle mechanism and clamping mechanism, cutting angle mechanism includes cutting knife and driving part, clamping mechanism includes clamping plate, the application is rotated and moved by driving part synchronous control two cutting knives in mutually parallel state, to realize the synchronous cutting angle operation of two sections, two sections are clamped and fixed in mutually perpendicular state by two groups of clamping plates, and after cutting angle mechanism cutting is completed, by clamping mechanism synchronous control two sides clamping plate drives section to fold, so that the cutting tip of section is mutually resisted, without secondary clamping, improve subsequent welding efficiency, facilitate to realize cutting angle, joint continuous operation, improve splicing precision and production efficiency.

Description

Technical Field

[0001] This invention relates to the field of cutting blade technology, specifically to a corner-cutting device for producing battery pack frame profiles. Background Technology

[0002] New energy battery pack frames are mostly formed by welding together rectangular hollow aluminum alloy profiles. The ends of the four corner profiles of the frame need to be chamfered before being assembled and welded to ensure the frame forming accuracy, structural strength and sealing performance. This is a core pre-processing step in battery box production. At present, the industry's traditional chamfering equipment and processing technology generally adopt a processing mode of independent feeding of single profiles, single clamping and single chamfering. That is, the chamfering operation is completed on the end of each aluminum square tube profile one by one. After all the profiles have been chamfered, they are unloaded and transferred to a dedicated frame assembly and welding fixture for secondary clamping, alignment and welding operations.

[0003] Existing processing methods can only achieve independent cutting of a single profile in actual mass production, and cannot simultaneously cut corners on two sets of profiles. This results in fragmented processing steps, lengthy work cycles, and low efficiency in large-scale production. Secondly, traditional processes involve cumbersome procedures of multiple disassembly and assembly, multiple positioning, and cross-station transfers. After the profile corners are cut, they must be unclamped, removed, transferred to the welding station, and re-clamped and aligned. Multiple clamping operations easily lead to cumulative positioning errors, resulting in uneven profile joint gaps and large corner misalignments. This easily causes subsequent welding defects such as porosity, incomplete welds, and insufficient weld strength, making it difficult to meet the high-precision, high-sealing production standards of new energy battery pack frames. Furthermore, the exposed precision beveled edges after profile corner cutting are easily bumped, scratched, and slightly deformed during manual transfer and secondary clamping, further affecting assembly accuracy. The equipment integration is low, and the process connections are relatively poor. Summary of the Invention

[0004] The purpose of this invention is to provide a corner-cutting device for battery pack frame profile production that facilitates continuous corner-cutting and seam-fitting operations, improves splicing accuracy and production efficiency, and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a corner-cutting device for producing battery pack frame profiles, comprising a body, a corner-cutting mechanism, and a clamping mechanism. A lifting platform is fixedly connected to the upper side of the inner wall of the body. The corner-cutting mechanism includes two cutting blades installed inside the body, which are arranged parallel to each other. A drive component is provided on the lifting platform to synchronously control the rotation and movement of the two cutting blades. The corner-cutting mechanism can synchronously control the rotation and movement of the two parallel cutting blades through the drive component, thereby realizing synchronous corner-cutting operations on two profiles. The clamping mechanism includes two clamping plates installed on the body, with the side walls of the two clamping plates arranged perpendicular to each other. The clamping mechanism can clamp and fix the two profiles in a perpendicular state through the two sets of clamping plates. After the corner-cutting mechanism completes the cutting, it synchronously controls the clamping plates on both sides to drive the profiles to close, so that the cutting tips of the profiles abut against each other, eliminating the need for secondary clamping, improving subsequent welding efficiency, facilitating continuous corner-cutting and seam-aligning operations, and improving splicing accuracy and production efficiency.

[0006] Preferably, the clamping mechanism further includes a first guide frame and a second guide frame fixedly installed inside the machine body. The machine body has a collection groove, and the first guide frame and the second guide frame are both fixedly installed in the collection groove. A guide plate is slidably connected inside the first guide frame. The end of the guide plate away from the first guide frame is slidably connected to the inner wall of the second guide frame in a horizontal direction. The guide plate is provided with a limiting member that can limit and adjust the position of the profile end, so that the two profiles can be clamped and fixed in a mutually perpendicular state by the two sets of clamping plates. After the corner cutting mechanism is completed, the clamping plates on both sides are synchronously controlled to drive the profile to close, so that the cutting tips of the profiles abut against each other, without the need for secondary clamping.

[0007] Preferably, the limiting component includes a mounting base fixedly installed on the guide plate, a limiting block inserted into the mounting base in the vertical direction, a sliding block slidably connected to the guide plate, two connecting rods rotatably connected to the bottom of the clamping plates on both sides respectively on the sliding block, a moving component for synchronously driving the clamping plates on both sides to move, and an adjusting component for driving the guide plate and the limiting block to move and adjust, so as to facilitate limiting and adjusting the position of the profile end.

[0008] Preferably, the adjusting component includes a tension spring fixedly installed at one end of the guide plate, the end of the tension spring away from the guide plate being fixedly connected to the inner wall of the first guide frame, a sliding groove being provided in the sliding block, a locking block being slidably connected in the sliding groove along the vertical direction, an elastic element fixedly connected to the upper side of the locking block and fixedly connected to the sliding groove, a pull rod being fixedly connected to the upper side of the locking block, the pull rod passing through the sliding block and being slidably connected to the inner wall of the sliding block along the vertical direction, and multiple sets of oblique toothed grooves evenly provided on the guide plate that can engage with the locking block in one direction, facilitating the movement and adjustment of the guide plate and the limiting block.

[0009] Preferably, the driving component includes a device frame installed below the lifting platform. A prism rod is provided below the device frame. The cutting blade has an insertion hole. The prism rod can pass through the insertion hole and is slidably connected to the inner wall of the insertion hole in the horizontal direction. Two sets of sliding frames are slidably connected in the horizontal direction inside the device frame. A rotating ring is rotatably connected to the sliding frame. The cutting blade is coaxially fixed to the rotating ring by bolts. The device frame is provided with a control component that can control the sliding frame to move and adjust and enable the cutting blade to rotate synchronously, so as to facilitate the synchronous control of the rotation and movement of the two cutting blades.

[0010] Preferably, the control component includes a rotating rod rotatably connected to the inner wall of the device frame. The rotating rod has two sets of threaded grooves with opposite thread directions. The rotating rod passes through the sliding frames on both sides, and the threaded grooves on both sides are threadedly connected to the inner walls of the two sets of sliding frames respectively. A mounting frame is fixedly connected to the device frame by bolts. One end of the prism rod is rotatably connected to the inner wall of the mounting frame. The end of the prism rod away from the mounting frame has an insertion groove. A first motor is fixedly connected inside the device frame. The output end of the first motor has a prism shaft. The prism shaft can be inserted into the inner wall of the insertion groove in a horizontal direction, which facilitates the control of the sliding frame to move and adjust and enables the cutting blade to rotate synchronously.

[0011] Preferably, the moving component includes a drive block fixedly installed at the bottom of the clamping plate and slidably connected to the surface of the machine body in a horizontal direction. A first bevel gear is rotatably connected inside the machine body. A second motor capable of driving the first bevel gear to rotate is fixedly connected inside the machine body. A threaded rod is rotatably connected inside the machine body. The threaded rod passes through the drive block and is threadedly connected to the inner wall of the drive block. One end of the threaded rod is coaxially fixedly connected to a second bevel gear that meshes with the first bevel gear. The clamping plate is provided with a fixed clamp capable of controlling the clamping state, which facilitates the synchronous movement of the clamping plates on both sides.

[0012] Preferably, a lifting frame is fixedly connected to the bottom lifting end of the lifting platform, and a drive screw is rotatably connected inside the lifting frame. The drive screw passes through the device frame and is threadedly connected to the inner wall of the device frame. The device frame and the inner wall of the lifting frame are slidably connected in the horizontal direction. The extension direction of the drive screw is consistent with the extension direction of the guide plate and is perpendicular to the extension direction of the prism axis. The lifting frame and the device frame are respectively provided with driving devices that can drive the drive screw and the rotating rod to rotate, which facilitates the movement and lifting of the device frame.

[0013] Preferably, two baffles are fixedly connected to the sliding block, and the bottom surface of the baffles slides in contact with the upper surface of the guide plate to prevent impurities from entering the inclined tooth groove.

[0014] Preferably, a welding robotic arm is fixedly connected inside the machine body, which facilitates direct welding of the profile after the corners are cut, reducing assembly errors caused by secondary clamping.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention provides a corner-cutting device for battery pack frame profile production, which solves the problems of existing corner-cutting devices that require multiple corner cuttings and clamping and transfer, which can easily lead to positioning errors and cumbersome operation procedures. By synchronously controlling two parallel cutting blades to rotate and move through a drive component, the device can achieve synchronous corner cutting of two profiles. Two sets of clamping plates hold and fix the two profiles in a mutually perpendicular state. After the corner cutting is completed, the clamping mechanism synchronously controls the clamping plates on both sides to drive the profiles to close, so that the cutting tips of the profiles abut against each other, eliminating the need for secondary clamping, improving subsequent welding efficiency, facilitating continuous corner cutting and seam alignment, and improving splicing accuracy and production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the clamping operation state of the present invention; Figure 3 for Figure 2 Enlarged view of region A in the middle; Figure 4 This is a partial structural diagram of the clamping mechanism of the present invention; Figure 5 This is a partial structural exploded view of the clamping mechanism of the present invention; Figure 6 for Figure 5 Enlarged view of region B in the middle; Figure 7 This is a partial structural cross-sectional view of the clamping mechanism of the present invention; Figure 8 for Figure 7 Enlarged view of region C; Figure 9 This is a partial structural cross-sectional view of the corner-cutting mechanism of the present invention; Figure 10 for Figure 9 Enlarged view of region D in the middle.

[0017] In the diagram: 1. Machine body; 2. Lifting platform; 3. Cutting blade; 4. Clamping plate; 5. First guide frame; 6. Second guide frame; 7. Collection trough; 8. Guide plate; 9. Mounting base; 10. Limiting block; 11. Sliding block; 12. Connecting rod; 13. Tension spring; 14. Sliding groove; 15. Snap-fit ​​block; 16. Elastic element; 17. Pull rod; 18. Inclined tooth groove; 19. Device frame; 20. Prismatic rod; 21. Insertion hole 22. Sliding frame; 23. Rotating ring; 24. Rotating rod; 25. Threaded groove; 26. Mounting bracket; 27. Insertion slot; 28. First motor; 29. ​​Prismatic shaft; 30. Drive block; 31. First bevel gear; 32. Second motor; 33. Threaded rod; 34. Second bevel gear; 35. Fixing clamp; 36. Lifting frame; 37. Drive screw; 38. Baffle; 39. Welding robotic arm; 40. Profile. Detailed Implementation

[0018] 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.

[0019] Example 1: Please refer to Figures 1-6 and Figures 9-10The diagram illustrates a corner-cutting device for producing battery pack frame profiles. It includes a body 1, a corner-cutting mechanism, and a clamping mechanism. A lifting platform 2 is fixedly connected to the upper side of the inner wall of the body 1. The corner-cutting mechanism includes two cutting blades 3 installed inside the body 1, arranged parallel to each other. The lifting platform 2 is equipped with a drive unit capable of synchronously controlling the rotation and movement of the two cutting blades 3. The corner-cutting mechanism can synchronously control the rotation and movement of the two parallel cutting blades 3 through the drive unit, thereby achieving synchronous corner-cutting operations on two profiles 40. The holding mechanism includes two clamping plates 4 mounted on the machine body 1. Each clamping plate 4 has a fixing clamp 35 that controls the clamping state. The side walls of the two clamping plates 4 are perpendicular to each other. The clamping mechanism can clamp and fix two profiles 40 in a perpendicular state using the two sets of clamping plates 4. After the corner-cutting mechanism completes the cutting, it simultaneously controls the clamping plates 4 on both sides to drive the profiles 40 to close, causing the cutting tips of the profiles 40 to abut against each other, eliminating the need for secondary clamping and improving subsequent welding efficiency. The driving component includes a device frame 19 mounted below the lifting platform 2. A prism rod 20 is provided below the device frame 19. The cutting blade 3 has an insertion hole 21. The prism rod 20 can pass through the insertion hole 21 and slide horizontally connected to the inner wall of the insertion hole 21. Two sets of sliding frames 22 are slidably connected horizontally inside the device frame 19. A rotating ring 23 is rotatably connected to the sliding frame 22. The cutting blade 3 is coaxially fixed to the rotating ring 23 by bolts. The device frame 19 is provided with a control component that can control the movement and adjustment of the sliding frame 22 and enable the cutting blade 3 to rotate synchronously. The control component includes components connected to the device frame 19. A rotating rod 24 is rotatably connected to the inner wall of the device frame 19. The rotating rod 24 has two sets of threaded grooves 25 with opposite thread directions. The rotating rod 24 passes through the two sliding frames 22 on both sides. The threaded grooves 25 on both sides are threadedly connected to the inner walls of the two sets of sliding frames 22 respectively. A mounting bracket 26 is fixedly connected to the device frame 19 by bolts. One end of the prism rod 20 is rotatably connected to the inner wall of the mounting bracket 26. The end of the prism rod 20 away from the mounting bracket 26 has a insertion groove 27. A first motor 28 is fixedly connected inside the device frame 19. The preferred model of the first motor 28 is SEIMEC. The HPE series saw blade motor (three-phase asynchronous motor) has a prism shaft 29 at the output end of the first motor 28. The prism shaft 29 can be inserted into the inner wall of the insertion slot 27 in a horizontal direction. The bottom lifting end of the lifting platform 2 is fixedly connected to a lifting frame 36. A drive screw 37 is rotatably connected inside the lifting frame 36. The drive screw 37 passes through the device frame 19 and is threadedly connected to the inner wall of the device frame 19. The device frame 19 and the inner wall of the lifting frame 36 are slidably connected in a horizontal direction. A welding robotic arm 39 is fixedly connected inside the machine body 1. Remove the mounting bracket 26, pull out the prism rod 20 horizontally, select a cutting blade 3 of appropriate size and fix it to the rotating ring 23 with bolts, and then pass the prism rod 20 through the insertion hole 21 so that the insertion slot 27 and the prism shaft 29 are inserted.The mounting bracket 26 is brought into contact with one end of the prism rod 20, and the mounting bracket 26 is fixed to the device frame 19 with bolts, thus completing the replacement and installation of the cutting blade 3.

[0020] Example 2: Please refer to Figures 2-8This embodiment further illustrates Embodiment 1. The clamping mechanism shown in the figure also includes a first guide frame 5 and a second guide frame 6 fixedly installed inside the machine body 1. A collection groove 7 is provided on the machine body 1. The first guide frame 5 and the second guide frame 6 are both fixedly installed in the collection groove 7. A guide plate 8 is slidably connected inside the first guide frame 5. The end of the guide plate 8 away from the first guide frame 5 is slidably connected to the inner wall of the second guide frame 6 in the horizontal direction. The guide plate 8 is provided with a limiting member that can limit and adjust the position of the end of the profile 40. The limiting member includes a mounting base 9 fixedly installed on the guide plate 8. A limiting block 10 is inserted into the mounting base 9 in the vertical direction. A sliding block 11 is slidably connected on the guide plate 8. Two connecting rods 12 are rotatably connected to the bottom of the clamping plates 4 on both sides. The machine body 1 is provided with a moving part for synchronously driving the clamping plates 4 on both sides to move. The sliding block 11 is provided with an adjusting part for driving the guide plate 8 and the limiting block 10 to move and adjust. The adjusting part includes a tension spring 13 fixedly installed at one end of the guide plate 8. The end of the tension spring 13 away from the guide plate 8 is fixedly connected to the inner wall of the first guide frame 5. A sliding groove 14 is opened in the sliding block 11. A locking block 15 is slidably connected in the vertical direction in the sliding groove 14. An elastic element 16 fixedly connected to the upper side of the locking block 15 is fixedly connected to the sliding groove 14. A pull rod 17 is fixedly connected to the upper side of the locking block 15 and passes through the sliding block. 11 and slides vertically connected to the inner wall of the sliding block 11. The guide plate 8 is evenly provided with multiple sets of oblique tooth grooves 18 that can unidirectionally engage with the locking block 15. Two baffles 38 are fixedly connected to the sliding block 11. The bottom surface of the baffles 38 slides in contact with the upper surface of the guide plate 8. The extension direction of the drive screw 37 is consistent with the extension direction of the guide plate 8 and is perpendicular to the extension direction of the prism axis 29. The lifting frame 36 and the device frame 19 are respectively provided with drive devices that can drive the drive screw 37 and the rotating rod 24 to rotate. The clamping plate 4 will pull the connecting rod 12, so that the connecting rod 12 drives the sliding block 11 to slide towards the first guide frame 5. The locking block 15 at the bottom of the sliding block 11 will Multiple sets of oblique toothed grooves 18 slide and engage. When the clamping plate 4 stops, the engaging block 15 is pushed into the oblique toothed groove 18 at the current position by the elastic element 16. During this process, the guide plate 8 will not slide in the first guide frame 5. The guide plate 8 is in a position close to the first guide frame 5 under the pull of the tension spring 13. When it is necessary to weld the two sets of profiles 40 together, the tips of the profiles 40 with the chamfered corners on both sides are pushed to close. At this time, the engaging block 15 will directly push the guide plate 8 to slide towards the second guide frame 6. The tension spring 13 is stretched. At the same time, the guide plate 8 drives the mounting base 9 and the limiting block 10 to slide towards the second guide frame 6 until the chamfered corners of the profiles 40 on both sides are completely closed.

[0021] Example 3: Please refer to Figures 4-8This embodiment further illustrates Embodiment 1. The moving component shown in the figure includes a drive block 30 fixedly installed at the bottom of the clamping plate 4 and slidably connected to the surface of the machine body 1 in a horizontal direction. A first bevel gear 31 is rotatably connected inside the machine body 1. A second motor 32 capable of driving the first bevel gear 31 to rotate is fixedly connected inside the machine body 1. The second motor 32 is preferably an AC servo motor. A threaded rod 33 is rotatably connected inside the machine body 1. The threaded rod 33 passes through the drive block 30 and is threadedly connected to the inner wall of the drive block 30. One end of the threaded rod 33 is coaxially fixedly connected to a second bevel gear 34 that meshes with the first bevel gear 31. First, the second motor 32 is controlled to drive the first bevel gear 31 to rotate in the opposite direction. Then, the second bevel gear 34 drives the threaded rod 33 to rotate in the opposite direction, so that the drive block 30 and the clamping plate 4 slide a preset distance away from the limiting block 10 to increase the distance between the profile 40 to be processed and the limiting block 10. At this time, the cut profile 40 can fall directly into the collection groove 7 for collection.

[0022] Working principle: Place the two battery pack frame profiles 40 to be cut and welded onto the two clamping plates 4 respectively. Select a suitable size limiting block 10 and place it on the mounting base 9 so that the tops of the two sets of clamping plates 4 can just abut against the two mutually perpendicular edges of the limiting block 10 (as shown in the attached figure). Figure 2 (As shown) Ensure that the end corners of the two sets of profiles 40 are in contact with each other. Clamp and fix the profiles 40 with the fixing clip 35. Remove the mounting bracket 26, pull out the prism rod 20 horizontally, select a cutting blade 3 of appropriate size and fix it to the rotating ring 23 with bolts. Then pass the prism rod 20 through the insertion hole 21 so that the insertion groove 27 is inserted into the prism shaft 29. Make the mounting bracket 26 abut against one end of the prism rod 20 and fix the mounting bracket 26 to the device frame 19 with bolts. The replacement and installation of the cutting blade 3 can be completed. With the above quick-change structure, different specifications of cutting blades 3 can be quickly replaced without disassembling the entire set of drive components to meet the corner cutting requirements of different sizes of profiles 40.

[0023] Rotating the rotating rod 24 causes the threaded groove 25 to drive the sliding frames 22 on both sides to slide and open together with the cutting blade 3 in opposite directions, thus adjusting the distance between the two cutting blades 3. This allows the cutting blade 3 to cut the tip of the profile 40 while moving along the drive screw 37. The first motor 28 drives the prism shaft 29 to rotate, which in turn drives the prism rod 20 to make the cutting blade 3 rotate at high speed. The height of the lifting frame 36 is controlled by the lifting platform 2, allowing the cutting blade 3 to move at a suitable height. The drive screw 37 drives the device frame 19 to slide along the inner wall of the lifting frame 36. The device frame 19 drives the sliding frame 22 and the cutting blade 3 to move synchronously, thus completing the cutting of two profiles by passing through two sets of cutting blades 3 along a set route. During the corner cutting operation of profile 40, the distance and height of the two cutting blades 3 are adjustable. The cutting blades 3 are set parallel to each other, so that the cutting angles of the two profiles 40 are relatively consistent, improving the flatness and efficiency of subsequent assembly. The device can select the appropriate limiting block 10 and cutting blade 3 according to the size of profile 40, and flexibly adjust the clamping and fixing position, making it more flexible and efficient to use. At the same time, a collection groove 7 is set at the bottom of the movement path of the cutting blade 3. A dust collection device can be set in the collection groove 7 to directly suck up and store the dust generated during the cutting process. Large pieces of profile 40 cut off will also fall directly into the collection groove 7 for storage. The bottom of the cutting blade 3 can be slightly lower than the bottom surface of the profile 40 to ensure cutting efficiency, and the movement of the cutting blade 3 will not be obstructed during the cutting process.

[0024] After cutting, the cutting blade 3 is controlled to move in the opposite direction and reset to the side away from the second motor 32. In order to improve the falling efficiency of the cut profile 40 and prevent the cut profile 40 from getting stuck between the limiting block 10 and the profile 40 to be processed, the second motor 32 can be controlled to drive the first bevel gear 31 to rotate in the opposite direction. The second bevel gear 34 then drives the threaded rod 33 to rotate in the opposite direction, so that the driving block 30 and the clamping plate 4 slide a preset distance away from the limiting block 10, thereby increasing the distance between the profile 40 to be processed and the limiting block 10. At this point, the cut profile 40 can fall directly into the collection groove 7 for collection. During this process, the clamping plate 4 will pull the connecting rod 12, causing the connecting rod 12 to drive the sliding block 11 to slide towards the first guide frame 5. The locking block 15 at the bottom of the sliding block 11 will slide and lock in multiple sets of oblique tooth grooves 18. When the clamping plate 4 stops, the locking block 15 will be pushed into the oblique tooth groove 18 at the current position by the elastic element 16. During this process, the guide plate 8 will not slide in the first guide frame 5. Under the pull of the tension spring 13, the guide plate 8 is positioned close to the first guide frame 5. When it is necessary to weld the two sets of profiles 40 together, the second motor 32 is controlled to drive the first bevel gear 31 to rotate in the forward direction. This, in turn, drives the threaded rod 33 to rotate in the forward direction via the second bevel gear 34. The threaded rod 33 drives the driving blocks 30 on both sides and the clamping plate 4 to slide synchronously toward the limiting block 10, pushing the tips of the profiles 40 with their chamfered edges to close. At this time, the snap-fit ​​block 15 will directly push the guide plate 8 toward the second guide frame 6. When the spring 13 is stretched, the guide plate 8 drives the mounting base 9 and the limiting block 10 to slide synchronously towards the second guide frame 6 until the cut corners of the profiles 40 on both sides are completely closed. The reciprocating sliding process of the clamping plate 4 can help the cut profiles 40 fall into the collection groove 7, and can also increase the distance between the tip of the profile 40 to be processed and the limiting block 10, so as to avoid the distance between the limiting block 10 and the tip of the profile 40 being too close during the closing process, which would affect the subsequent welding of the edge position.

[0025] During the welding process, the welding robot arm 39 welds the chamfered edge. The chamfered edge is less obstructed, and the welding operation can be completed by the slender welding gun. At the same time, the chamfered butt joint position is fixed, which facilitates the programmed control of the welding gun movement and welding operation. If the bottom position is difficult to weld, the top and side can be welded first to initially position the profile 40. Then, the fixing state of the two side clamps 35 is released, the profile 40 is flipped so that the bottom is facing up and then fixed to the clamping plate 4. The all-round welding operation of the chamfered position of the profile 40 can be continued. After the welding is completed, the profile 40 is removed, the second motor 32 drives the clamping plate 4 to slide back to reset, and the pull rod 17 is pulled up, so that the locking block 15 releases the one-way locking of the oblique tooth groove 18. Under the pull of the tension spring 13, the guide plate 8 slides to the end that is closest to the first guide frame 5 to complete the reset operation. The pull rod 17 is released to complete the reset operation.

[0026] It is worth noting that, in order to avoid dust interference with the sliding of the guide plate 8, this solution sets the guide plate 8 in a suspended state. The two ends of the guide plate 8 slide within the first guide frame 5 and the second guide frame 6 respectively. At the same time, an elastic cloth can be set between the sliding block 11 and the guide plate 8 to cover the area of ​​the rotating part of the connecting rod 12 and the sliding block 11, while exposing the upper end of the pull rod 17. This can prevent dust from falling into the connection gap and affecting the operation of the equipment. By setting a baffle 38 on the sliding block 11, the opening of the oblique tooth groove 18 can be blocked to prevent dust from falling into the oblique tooth groove 18 during the sliding of the sliding block 11. The elastic element 16 can be replaced by any existing elastic structure such as a spring.

[0027] 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.

[0028] 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 corner-cutting device for producing battery pack frame profiles, characterized in that, include: The machine body (1) has a lifting platform (2) fixedly connected to the upper side of the inner wall of the machine body (1). Also includes: The corner cutting mechanism includes two cutting blades (3) installed inside the machine body (1). The two cutting blades (3) are arranged parallel to each other. The lifting platform (2) is provided with a drive unit that can synchronously control the rotation and movement of the two cutting blades (3). The corner cutting mechanism can synchronously control the rotation and movement of the two parallel cutting blades (3) through the drive unit, thereby realizing the synchronous corner cutting operation of the two profiles. The clamping mechanism includes two clamping plates (4) mounted on the body (1). The side walls of the two clamping plates (4) are perpendicular to each other. The clamping mechanism can clamp and fix the two profiles in a perpendicular state through the two sets of clamping plates (4). After the corner cutting mechanism is completed, the clamping plates (4) on both sides are controlled to drive the profiles to close, so that the cutting tips of the profiles abut against each other. No secondary clamping is required, which improves the efficiency of subsequent welding.

2. The corner-cutting device for producing battery pack frame profiles according to claim 1, characterized in that: The clamping mechanism further includes a first guide frame (5) and a second guide frame (6) fixedly installed inside the body (1). A collection groove (7) is provided on the body (1). The first guide frame (5) and the second guide frame (6) are both fixedly installed in the collection groove (7). A guide plate (8) is slidably connected inside the first guide frame (5). The end of the guide plate (8) away from the first guide frame (5) is slidably connected to the inner wall of the second guide frame (6) in the horizontal direction. The guide plate (8) is provided with a limiting member that can limit and adjust the position of the profile end.

3. The corner-cutting device for producing battery pack frame profiles according to claim 2, characterized in that: The limiting component includes a mounting base (9) fixedly installed on the guide plate (8), a limiting block (10) inserted vertically on the mounting base (9), a sliding block (11) slidably connected on the guide plate (8), and two connecting rods (12) rotatably connected to the bottom of the clamping plates (4) on both sides respectively on the sliding block (11). The machine body (1) is provided with a moving component for synchronously driving the clamping plates (4) on both sides to move, and the sliding block (11) is provided with an adjusting component for driving the guide plate (8) and the limiting block (10) to move and adjust.

4. The corner-cutting device for producing battery pack frame profiles according to claim 3, characterized in that: The adjusting component includes a tension spring (13) fixedly installed at one end of the guide plate (8). The end of the tension spring (13) away from the guide plate (8) is fixedly connected to the inner wall of the first guide frame (5). A sliding groove (14) is provided in the sliding block (11). A snap-fit ​​block (15) is slidably connected in the vertical direction in the sliding groove (14). An elastic element (16) fixedly connected to the sliding groove (14) is fixedly connected to the upper side of the snap-fit ​​block (15). A pull rod (17) is fixedly connected to the upper side of the snap-fit ​​block (15). The pull rod (17) passes through the sliding block (11) and is slidably connected to the inner wall of the sliding block (11) in the vertical direction. Multiple sets of oblique toothed grooves (18) that can be unidirectionally snapped with the snap-fit ​​block (15) are evenly provided on the guide plate (8).

5. A corner-cutting device for producing battery pack frame profiles according to claim 4, characterized in that: The driving component includes a device frame (19) installed below the lifting platform (2). A prism rod (20) is provided below the device frame (19). A plug hole (21) is provided on the cutting blade (3). The prism rod (20) can pass through the plug hole (21) and slide horizontally connected to the inner wall of the plug hole (21). Two sets of sliding frames (22) are slidably connected in the horizontal direction inside the device frame (19). A rotating ring (23) is rotatably connected on the sliding frame (22). The cutting blade (3) is coaxially fixedly connected to the rotating ring (23) by bolts. A control component is provided on the device frame (19) that can control the sliding frame (22) to move and adjust and enable the cutting blade (3) to rotate synchronously.

6. A corner-cutting device for producing battery pack frame profiles according to claim 5, characterized in that: The control component includes a rotating rod (24) rotatably connected to the inner wall of the device frame (19). The rotating rod (24) has two sets of threaded grooves (25) with opposite thread directions. The rotating rod (24) passes through the sliding frames (22) on both sides. The threaded grooves (25) on both sides are threadedly connected to the inner walls of the two sets of sliding frames (22). The device frame (19) is fixedly connected to a mounting frame (26) by bolts. One end of the prism rod (20) is rotatably connected to the inner wall of the mounting frame (26). The end of the prism rod (20) away from the mounting frame (26) has a plug-in groove (27). A first motor (28) is fixedly connected inside the device frame (19). The output end of the first motor (28) is provided with a prism shaft (29). The prism shaft (29) can be plugged into the plug-in groove (27) in the horizontal direction.

7. A corner-cutting device for producing battery pack frame profiles according to claim 4, characterized in that: The moving part includes a drive block (30) fixedly installed at the bottom of the clamping plate (4) and slidably connected to the surface of the machine body (1) in the horizontal direction. A first bevel gear (31) is rotatably connected inside the machine body (1). A second motor (32) capable of driving the first bevel gear (31) to rotate is fixedly connected inside the machine body (1). A threaded rod (33) is rotatably connected inside the machine body (1). The threaded rod (33) passes through the drive block (30) and is threadedly connected to the inner wall of the drive block (30). One end of the threaded rod (33) is coaxially fixedly connected to a second bevel gear (34) that meshes with the first bevel gear (31). A fixed clamp (35) capable of controlling the clamping state is provided on the clamping plate (4).

8. A corner-cutting device for producing battery pack frame profiles according to claim 6, characterized in that: The bottom lifting end of the lifting platform (2) is fixedly connected to a lifting frame (36). A drive screw (37) is rotatably connected inside the lifting frame (36). The drive screw (37) passes through the device frame (19) and is threadedly connected to the inner wall of the device frame (19). The device frame (19) and the inner wall of the lifting frame (36) are slidably connected in the horizontal direction. The extension direction of the drive screw (37) is consistent with the extension direction of the guide plate (8) and is perpendicular to the extension direction of the prism axis (29). The lifting frame (36) and the device frame (19) are respectively provided with drive devices that can drive the drive screw (37) and the rotating rod (24) to rotate.

9. A corner-cutting device for producing battery pack frame profiles according to claim 3, characterized in that: Two baffles (38) are fixedly connected to the sliding block (11), and the bottom surface of the baffles (38) slides in contact with the upper surface of the guide plate (8).

10. A corner-cutting device for producing battery pack frame profiles according to claim 1, characterized in that: A welding robotic arm (39) is fixedly connected inside the body (1).

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