New energy automobile sheet metal part bending mechanism

Abstract

The invention provides a new energy automobile sheet metal part bending mechanism, which belongs to the technical field of sheet metal processing and comprises an operation table and a locking frame fixedly mounted on the operation table. A bending assembly is installed on the locking frame, and a fixing plate is installed on the operation table through a moving assembly. The device has the advantages that when the sheet metal part is bent, the elastic coating material is sprayed on the bent part of the sheet metal part to counteract the rebound stress of the sheet metal part, and before spraying, the elastic coating material entering the spray head is subjected to bubble removal, so that the elastic coating material is sprayed more uniformly, and meanwhile, in the bubble removal process, the elastic coating material is not prone to falling off. The elastic coating material is heated and stirred, so that the fluidity of the elastic coating material is ensured, the removal of bubbles can be accelerated, and the spraying uniformity can be effectively improved, so that the uniformity of eliminating the bending stress of the sheet metal part is improved, the deformation probability of the sheet metal part is reduced, and the service life of the sheet metal part is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of metal plate processing, and in particular to a sheet metal bending mechanism for new energy vehicles. Background Art

[0002] Automotive sheet metal parts are an important part of the vehicle body structure. Their processing quality directly affects the safety, aesthetics and assembly accuracy of the vehicle. The bending process is a key link in the processing of sheet metal parts. In the actual application of traditional bending mechanisms, sheet metal materials will undergo elastic deformation during the bending process, resulting in the angle after bending being inconsistent with the target angle. This is called the springback problem. The springback problem will reduce the processing accuracy and increase the difficulty and cost of subsequent correction processes. Therefore, this problem needs to be solved.

[0003] Currently, the commonly used methods for solving the springback problem include preheating method, spraying method, increasing bending angle method and multi-stage bending method. These methods for dealing with bending springback problem have corresponding advantages. For example, in the spraying method, during the bending process of sheet metal parts, an elastic coating is sprayed on the bending part of the sheet metal parts. This can not only offset part of the springback stress of the sheet metal parts, but also increase the friction between the sheet metal parts and the bending mechanism during bending, and provide additional restraint force during the bending process, thereby reducing the springback amplitude to a certain extent and playing an auxiliary anti-springback role.

[0004] However, the existing spray bending equipment consists of a bending unit and a spray unit, wherein the spray unit is a commonly used nozzle spray. When in use, the elastic coating material inside the nozzle is transported in from the outside, and the elastic coating material outside will retain bubbles when mixed. Therefore, the elastic coating material entering the nozzle forms bubble gaps inside the nozzle, which will cause the elastic coating material sprayed from the nozzle to be uneven, resulting in uneven stress distribution in the bending part of the sheet metal, affecting the service life of the sheet metal, and even increasing the probability of wave-like deformation. Therefore, the present application provides a new energy vehicle sheet metal bending mechanism to meet the needs. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a bending mechanism for sheet metal parts of new energy vehicles to solve the existing problem of deformation of sheet metal parts caused by uneven offset of spraying stress.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: A sheet metal bending mechanism for new energy vehicles includes an operating table and a locking frame fixedly installed on the operating table; a bending assembly is installed on the locking frame, a fixed plate is installed on the operating table through a moving assembly, a spraying assembly is installed on the fixed plate through a lifting assembly, the spraying assembly includes a spray head, and a feeding assembly is installed between the operating table and the spray head; the spray head includes a storage bin, the storage bin is connected to the feeding assembly, a bubble removal assembly is installed on the storage bin, a suction pump is fixedly installed at the bottom of the storage bin, and a nozzle is fixedly installed at the bottom of the suction pump.

[0007] Optionally, the bending component package is slidably mounted on a support plate on a locking frame, a pressure roller is rotatably mounted on the support plate, a third electric push rod is fixedly mounted under the operating table, and the telescopic end of the third electric push rod is fixedly connected to the support plate.

[0008] Optionally, the moving component includes a fixed frame fixedly mounted on the operating table, a first motor is fixedly mounted on the fixed frame, and a screw is rotatably mounted on the fixed frame, the driving end of the first motor is connected to the screw via a coupling, a nut is threadedly rotatably mounted on the screw, a moving block is fixedly mounted on the nut, the moving block is slidably connected to the fixed frame, and the moving block is fixedly connected to the fixed plate.

[0009] Optionally, the lifting assembly includes a second electric push rod fixedly mounted on a fixed plate, a sliding plate is slidably mounted on the fixed plate, the telescopic end of the second electric push rod is fixedly connected to the sliding plate, and the sliding plate is fixedly connected to the nozzle.

[0010] Optionally, the spraying assembly further comprises a thermostat fixedly mounted on the sliding plate, and the thermostat is connected to the spray head.

[0011] Optionally, the feeding assembly includes a support frame fixedly mounted on an operating table, a feeding tank fixedly mounted on the support frame, two one-way valves fixedly mounted in the feeding tank, two one-way valves fixedly mounted therein, a feeding pipe fixedly connected to each of the two one-way valves, one of the feeding pipes being connected to an external elastic coating material air source, and the other of the feeding pipes being connected to a storage bin, a piston disk being slidably mounted in the feeding tank, a first electric push rod fixedly mounted on the support frame, and a telescopic end of the first electric push rod being fixedly connected to the piston disk.

[0012] Optionally, the bubble removal assembly includes a shell fixedly mounted on the top of a storage bin, a plurality of cylinder bodies fixedly mounted on the shell, a one-way piston tube slidably mounted in each of the cylinder bodies, a driving mechanism installed between the shell and the plurality of one-way piston tubes, each of the cylinder bodies is fixedly connected to a suction pipe, each of the suction pipes extends into the storage bin, and a suction disk is commonly fixedly mounted on the plurality of suction pipes, a plurality of suction nozzles are fixedly mounted on the suction disk, a convex disk is slidably mounted in the storage bin, and a pressure relief mechanism cooperating with the plurality of suction nozzles is installed on the convex disk.

[0013] Optionally, the driving mechanism includes a second motor fixedly mounted on the shell, a first eccentric disk fixedly mounted on the driving end of the second motor, a connecting rod rotatably mounted on each of the one-way piston tubes, each of the connecting rods is rotatably connected to the first eccentric disk, and a second eccentric disk is rotatably mounted on multiple connecting rods, the central axis of the second eccentric disk and the first eccentric disk are on the same vertical line, and a movable structure matching the cam is mounted on the second eccentric disk.

[0014] Optionally, the movable structure includes a connecting shaft fixedly mounted on the second eccentric disk, the connecting shaft is fixedly mounted with a rotating rod, the rotating rod is fixedly mounted with a resist rod, a ball bearing that cooperates with the cam is rotatably mounted on the bottom of the resist rod, a fixing ring is fixedly mounted on the rotating rod, a plurality of elastic telescopic rods are fixedly mounted on the fixing ring, a rotating ring is fixedly mounted on the telescopic ends of the plurality of elastic telescopic rods, and the rotating ring is rotatably connected to the cam; a rotating shaft is fixedly mounted on the connecting shaft, the rotating shaft passes through the cam and the suction disk, a through hole that cooperates with the rotating shaft is opened in the middle position of the cam, a spiral agitator is fixedly mounted on the rotating shaft, a friction disk is fixedly mounted on the rotating shaft, a friction ring that cooperates with the friction disk is fixedly mounted on the suction disk, and a sealing rubber disk that cooperates with the through hole is fixedly mounted on the rotating shaft.

[0015] Optionally, the pressure relief mechanism includes a plurality of pressure relief holes formed on the convex plate and matched with corresponding air suction nozzles, a plurality of elastic telescopic rods 2 are fixedly installed in each of the pressure relief holes, and a sealing disk matching with the corresponding pressure relief holes is fixedly installed at the telescopic ends of the plurality of matched elastic telescopic rods 2.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, multiple cylinders and one-way piston tubes matched with the cylinders are provided to compress the elastic coating material in the nozzle storage bin, thereby removing bubbles in the elastic coating material and making the elastic coating material sprayed out of the nozzle more uniform.

[0017] By setting up a friction ring, during the process of bubble removal, the heat energy generated by the friction ring can be used to heat the elastic coating material in the storage bin, and the elastic coating material can be stirred during the heating process to accelerate molecular movement, thereby improving the bubble removal efficiency.

[0018] The convex disc is driven to rise and fall by the rotation of the lever, and the use of a sealing plate can keep the storage bin sealed when removing bubbles. After the bubble removal is completed, the pressure in the storage bin is released, making it easier for the elastic coating material in the storage bin to enter the nozzle for spraying, avoiding the unstable storage material caused by excessive pressure in the storage bin, which is beneficial to the uniformity and stability of spraying.

[0019] To summarize, the present invention adopts the method of spraying elastic coating material on the bent part of the sheet metal to offset the rebound stress of the sheet metal when bending the sheet metal. Before spraying, the bubbles of the elastic coating material entering the nozzle are removed to make the spraying of the elastic coating material more uniform. At the same time, in the process of removing bubbles, the elastic coating material is heated and stirred. In addition to ensuring the fluidity of the elastic coating material, the removal of bubbles can also be accelerated, which can effectively improve the uniformity of spraying, thereby improving the uniformity of eliminating the bending stress of the sheet metal, reducing the probability of deformation of the sheet metal, and extending the service life of the sheet metal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0021] Figure 1 This is a schematic diagram of the structure of the sheet metal bending mechanism for new energy vehicles proposed by the present invention; Figure 2 for Figure 1 Detailed diagram of the enlarged structure of part A Figure 3 for Figure 1 Detailed schematic diagram of the structure after being rotated to a certain angle; Figure 4 for Figure 1 A detailed structural diagram after removing the operating table and locking frame; Figure 5 for Figure 1 A schematic detailed diagram of the enlarged structure of the moving component; Figure 6 for Figure 1 A schematic detailed diagram of the enlarged structure of the spraying assembly; Figure 7 for Figure 6 Detailed schematic diagram of the structure after being rotated to a certain angle; Figure 8 for Figure 7 A detailed diagram of the enlarged structure of the middle nozzle; Fig. 9 for Figure 8 Detailed schematic diagram of the structure after being rotated to a certain angle; Fig.10 for Fig. 9 A schematic detailed view of the plan structure along one of the angles; Fig.11 for Fig.10 Detailed schematic diagram of the three-dimensional structure along the BB section; Fig.12 for Fig.11 A detailed diagram of the structure after removing the protective cover, nozzle, storage bin and suction pump; Fig.13 for Fig.12 Detailed schematic diagram of the structure after being rotated to a certain angle; Fig.14 for Fig.13 Detailed schematic diagram of the exploded structure; Fig.15 for Fig.14 A schematic detailed plan view of the internal components of the middle housing machine along one of the angles; Fig.16 for Fig.14 A schematic detailed diagram of the structure of the bubble removal assembly; Fig.17 for Fig.15 Detailed schematic diagram of the structure of the medium pressure release mechanism; Fig.18 for Fig.17 Detailed schematic diagram of the structure after being rotated to a certain angle; Fig.19 for Fig.17 A detailed schematic diagram of the enlarged structure of the middle air intake disc and the convex disc; Fig. 20 for Fig.19 A schematic detailed view of the plan structure along one of the angles; Fig.21 for Fig. 20 Detailed schematic diagram of the three-dimensional structure along the CC section.

[0022] Reference numerals: 1. Operation table; 2. Feeding assembly; 3. Moving assembly; 4. Spraying assembly; 5. Locking frame; 6. First electric push rod; 7. Feeding tank; 8. Feeding pipe; 9. First motor; 10. Screw rod; 11. Spray head; 12. Fixed frame; 13. Moving block; 14. Fixed plate; 15. Second electric push rod; 16. Thermostat; 17. Sliding plate; 18. Protective cover; 19. Nozzle; 20. Storage bin; 21. Shell; 22. Second motor; 23. Cylinder; 24. Air suction Tube; 25, spiral agitator; 26, suction pump; 27, first eccentric disk; 28, second eccentric disk; 29, convex disk; 30, one-way piston tube; 31, connecting rod; 32, suction disk; 33, connecting shaft; 34, suction nozzle; 35, fixed ring; 36, elastic telescopic rod one; 37, rotating ring; 38, friction ring; 39, blocking disk; 40, elastic telescopic rod two; 41, rotating rod; 42, push rod; 43, support plate; 44, pressure roller; 45, third electric push rod.

[0023] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0024] The following is a detailed description of the new energy automobile sheet metal bending mechanism provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods for some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0025] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0026] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0027] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0028] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0029] Embodiment 1: Referring to FIG. Figure 8 A sheet metal bending mechanism for a new energy vehicle comprises an operating table 1, and also comprises a locking frame 5 fixedly mounted on the operating table 1; a bending assembly is mounted on the locking frame 5, and a fixed plate 14 is mounted on the operating table 1 through a moving assembly 3; the bending assembly includes a support plate 43 slidably mounted on the locking frame 5, and a pressing roller 44 is rotatably mounted on the support plate 43, and a third electric push rod 45 is fixedly mounted below the operating table 1, and the telescopic end of the third electric push rod 45 is fixedly connected to the support plate 43; the sheet metal is inserted into the locking frame 5 from the side so that one end of the sheet metal extends into Inside the locking frame 5, the sheet metal is then locked (the locking here is the existing common bolt locking, which is not elaborated here), and then the third electric push rod 45 is started, and the telescopic end of the third electric push rod 45 moves upward to drive the support plate 43 to move upward, thereby driving the pressure roller 44 to move upward, so that the pressure roller 44 and the sheet metal are abutted against each other, and as the pressure roller 44 continues to move upward, the sheet metal will be bent, thereby completing the sheet metal bending operation (the pressure roller 44 is used, and the pressure roller 44 is rotatably connected to the support plate 43. The pressure roller 43 can rotate during the pressing process. The purpose of this design is to reduce friction).

[0030] The moving assembly 3 includes a fixed frame 12 fixedly mounted on the operating table 1, a first motor 9 is fixedly mounted on the fixed frame 12, and a screw rod 10 is rotatably mounted on the fixed frame 12, a driving end of the first motor 9 is connected to the screw rod 10 via a coupling, a nut is threadedly rotatably mounted on the screw rod 10, a moving block 13 is fixedly mounted on the nut, the moving block 13 is slidably connected to the fixed frame 12, and the moving block 13 is fixedly connected to the fixed plate 14.

[0031] The driving end of the first motor 9 rotates, driving the screw rod 10 to rotate through the coupling, and driving the moving block 13 to move on the fixed frame 12 under the action of the nut. The reciprocating movement of the moving block 13 is achieved by the forward and reverse rotation of the driving end of the first motor 9. The moving block 13 is moved by the cooperation of the screw rod 10 and the nut, which has higher stability, and the cooperation movement gap between the screw rod 10 and the nut is smaller, and the position adjustment is more precise.

[0032] The coupling is an existing structure, which can effectively compensate for the deviation between the driving end of the first motor 9 and the screw 10, and also has a certain effect of reducing vibration and impact.

[0033] The spray assembly 4 is mounted on the fixed plate 14 via a lifting assembly. The spray assembly 4 further includes a thermostat 16 fixedly mounted on the sliding plate 17 . The thermostat 16 is connected to the spray head 11 .

[0034] The function of the thermostat 16 is to ensure that the temperature on the nozzle 11 is maintained within the optimal range, to ensure the fluidity of the elastic coating material in the nozzle 11, so that the elastic coating material can be sprayed more evenly. At the same time, the thermostat 16 can also be used to heat the nozzle 11 to prevent the elastic coating material from solidifying in the nozzle 11 and reduce the probability of clogging of the nozzle 11 (the elastic coating material is an existing material and no specific example is given here).

[0035] The spraying assembly 4 includes a spray head 11; the lifting assembly includes a second electric push rod 15 fixedly mounted on a fixed plate 14, a sliding plate 17 is slidably mounted on the fixed plate 14, the telescopic end of the second electric push rod 15 is fixedly connected to the sliding plate 17, and the sliding plate 17 is fixedly connected to the spray head 11.

[0036] The extension and retraction of the telescopic end of the second electric push rod 15 will drive the sliding plate 17 to move back and forth on the fixed plate 14, thereby driving the nozzle 11 to move up and down. The second electric push rod 15 is used here to realize the lifting and lowering operation of the nozzle 11. It has the advantage of fast response speed and can quickly change the spraying distance of the nozzle 11, thereby adjusting the spraying impact force.

[0037] A feeding assembly 2 is installed between the operating table 1 and the nozzle 11, and the feeding assembly 2 includes a support frame fixedly installed on the operating table 1, a feeding tank 7 is fixedly installed on the support frame, two one-way valves are fixedly installed in the feeding tank 7, and a feeding pipe 8 is fixedly connected to the two one-way valves, one of the feeding pipes 8 is connected to the external elastic coating material air source, and the other feeding pipe 8 is connected to the storage bin 20, a piston disk is slidably installed in the feeding tank 7, and a first electric push rod 6 is fixedly installed on the support frame, and the telescopic end of the first electric push rod 6 is fixedly connected to the piston disk.

[0038] The driving end of the first electric push rod 6 drives the piston disk to move in the feeding tank 7. The movement of the piston disk will change the pressure in the feeding tank 7, and the external elastic coating material will be sucked into the feeding tank 7 through one of the feeding pipes 8. Then, the elastic coating material in the feeding tank 7 will be injected into the storage bin 20 on the nozzle 11 through the other feeding pipe 8. Due to the limitation of the one-way valve, the feeding component 2 can only operate in one direction, and the flow direction of the elastic coating material is fixed.

[0039] Embodiment 2: This embodiment is different from the embodiment 1 in that: Figures 1 to 3 , Figure 5 , Figures 9 to 21 The nozzle 11 includes a storage bin 20, which is connected to the feeding assembly 2. A bubble removal assembly is installed on the storage bin 20. A suction pump 26 is fixedly installed at the bottom of the storage bin 20, and a nozzle 19 is fixedly installed at the bottom of the suction pump 26.

[0040] After being processed by the bubble removal component, the elastic coating material in the storage bin 20 will be sucked into the nozzle 19 by the suction pump 26, and then sprayed onto the circuit board through the nozzle 19. The elastic coating material sprayed out by the nozzle 19 is in an atomized state, which has a better adhesion effect and the spraying is more uniform (a protective cover 18 is fixedly installed on the outside of the suction pump 26 to protect the suction pump 26).

[0041] The bubble removal component includes a shell 21 fixedly installed on the top of the storage bin 20, and a plurality of cylinders 23 are fixedly installed on the shell 21. A one-way piston tube 30 is slidably installed in each cylinder 23. A driving mechanism is installed between the shell 21 and the plurality of one-way piston tubes 30. Each cylinder 23 is fixedly connected to a suction pipe 24, and each suction pipe 24 extends into the storage bin 20. A suction disk 32 is fixedly installed on the plurality of suction pipes 24, and a plurality of suction nozzles 34 are fixedly connected to the suction disk 32.

[0042] The one-way piston tube 30 is composed of a one-way tube and a piston. The one-way tube is connected to the piston. As the piston moves, the gas in the cylinder 23 will be discharged through the one-way tube, and then the gas in the storage bin 20 will be sucked into the cylinder 23 through the suction pipe 24 and the suction disk 32, thus forming a cycle. The suction pipe 24 also adopts a one-way tube.

[0043] The driving mechanism includes a second motor 22 fixedly mounted on the housing 21, a first eccentric disk 27 fixedly mounted on the driving end of the second motor 22, a connecting rod 31 rotatably mounted on each one-way piston tube 30, and each connecting rod 31 is rotatably connected to the first eccentric disk 27.

[0044] The driving end of the second motor 22 rotates to drive the first eccentric disk 27 to rotate, thereby driving the multiple connecting rods 31 to rotate. The rotation of the multiple connecting rods 31 drives the corresponding one-way piston tubes 30 to reciprocate in the cylinder body 23, thereby realizing the suction and discharge operation of the gas.

[0045] A second eccentric disk 28 is installed on multiple connecting rods 31 for common rotation. The central axis of the second eccentric disk 28 and the first eccentric disk 27 are on the same vertical line. A movable structure matching with the cam 29 is installed on the second eccentric disk 28 (the first eccentric disk 27 and the second eccentric disk 28 are composed of a disk body and a rotating shaft, but the rotating shaft and the corresponding disk body are eccentrically designed. For the sake of ease of description, they are collectively referred to as eccentric disks), and a cam 29 is slidably installed in the storage bin 20.

[0046] The movable structure includes a connecting shaft 33 fixedly mounted on the second eccentric disk 28, a rotating rod 41 fixedly mounted on the connecting shaft 33, a support rod 42 fixedly mounted on the rotating rod 41, a ball matched with the cam 29 rotatably mounted at the bottom of the support rod 42, a fixing ring 35 fixedly mounted on the rotating rod 41, a plurality of elastic telescopic rods 36 fixedly mounted on the fixing ring 35, a rotating ring 37 fixedly mounted on the telescopic ends of the plurality of elastic telescopic rods 36, and the rotating ring 37 is rotatably connected to the cam 29.

[0047] As the connecting rod 31 rotates, the second eccentric disk 28 will be driven to rotate, thereby driving the connecting shaft 33 to rotate. The rotation of the connecting shaft 33 drives the rotating rod 41 to rotate, thereby driving the push rod 42 to make a circular motion. The ball on the push rod 42 abuts against the cam 29 (the cam 29 is concave and convex), which will drive the cam 29 to move. When the push rod 42 abuts against the convex position on the cam 29, the cam 29 moves down. When the push rod 42 abuts against the concave position on the cam 29, the cam 29 moves up under the action of the elastic telescopic rod 36.

[0048] A sealing rubber disc that matches the through hole is fixedly installed on the rotating shaft. Since the connecting shaft 33 rotates and the convex disc 29 does not rotate, the rotating ring 37 and the convex disc 29 are rotationally connected. At the same time, a through hole that matches the connecting shaft 33 is opened on the convex disc 29. Air can enter the through hole, and the sealing rubber disc is used to block the through hole at this time (when the convex disc 29 moves up and resets, the sealing rubber disc just blocks the through hole).

[0049] A rotating shaft is fixedly mounted on the connecting shaft 33, and the rotating shaft passes through the convex plate 29 and the suction plate 32. A through hole matching the rotating shaft is opened in the middle of the convex plate 29. A spiral agitator 25 is fixedly mounted on the rotating shaft, a friction plate is fixedly mounted on the rotating shaft, and a friction ring 38 matching the friction plate is fixedly mounted on the suction plate 32.

[0050] The rotation of the connecting shaft 33 will drive the spiral agitator 25 to rotate in the storage bin 20, stirring the elastic coating material in the storage bin 20. At the same time, the rotation of the connecting shaft 33 will drive the friction disk to rotate, causing sliding friction between the friction disk and the friction ring 38, thereby generating friction internal energy, and then transferring the friction internal energy (heat energy) to the spiral agitator 25, so as to heat the elastic coating material in the storage bin 20, accelerate the molecular movement, and thus improve the bubble removal efficiency.

[0051] A pressure relief mechanism that cooperates with multiple suction nozzles 34 is installed on the convex disc 29. The pressure relief mechanism includes multiple pressure relief holes that cooperate with the corresponding suction nozzles 34 and are opened on the convex disc 29. Multiple elastic telescopic rods 40 are fixedly installed in each pressure relief hole. The telescopic ends of the multiple cooperating elastic telescopic rods 40 are jointly fixedly installed with a sealing disc 39 that cooperates with the corresponding pressure relief holes.

[0052] As the gas in the storage bin 20 is sucked, the pressure in the storage bin 20 will decrease. At this time, as the connecting shaft 33 rotates, the convex disc 29 will be driven to move downward (the abutting rod 42 abuts against the convex part of the convex disc 29). At this time, the downward movement of the convex disc 29 will cause the suction nozzle 34 to pass through the pressure release hole and abut against the blocking disc 39, so that the blocking disc 39 is separated from the convex disc 29. At this time, the pressure in the storage bin 20 will be replenished (the convex spacing on the convex disc 29 can be changed to change the pressure release time. The smaller the spacing, the shorter the time interval between suction and pressure release, and the amount of gas extracted Less, vice versa). After the pressure relief is completed, the suction nozzle 34 is separated from the blocking disk 39, and under the action of the elastic telescopic rod 240, the blocking disk 39 is against the convex disk 29 to block the pressure relief hole, and a limit block matching with the convex disk 29 is fixedly mounted on the connecting shaft 33, and the convex disk 29 is limited by the limit block, so that the elastic telescopic rod 36 is always in a stretched state (when the convex disk 29 is in the initial position, the total elastic force of the elastic telescopic rod 36 is greater than the negative pressure generated during vacuuming, so that the convex disk 29 can be kept stable during vacuuming).

[0053] The working principle of the technical solution provided by the present invention is as follows: Insert the sheet metal into the locking frame 5 from the side so that one end of the sheet metal extends into the locking frame 5, and then lock the sheet metal (the locking here is the existing common bolt locking, which is not elaborated here), and then start the third electric push rod 45, and the telescopic end of the third electric push rod 45 moves upward to drive the support plate 43 to move upward, thereby driving the pressure roller 44 to move upward, so that the pressure roller 44 and the sheet metal are abutted against each other, and as the pressure roller 44 continues to move upward, the sheet metal will be bent, and the nozzle 11 will be started during the bending process to spray the elastic coating material on the bent part, and then the position of the nozzle 11 is adjusted by the moving component 3 and the lifting component to align the nozzle 11 with the position where the bending part of the sheet metal is sprayed.

[0054] Then, the elastic coating material is transported to the nozzle 11 through the feeding component 2, and the elastic coating material enters the storage bin 20 in the nozzle 11. At this time, the elastic coating material in the storage bin 20 is treated with bubble removal by the bubble removal component. During the treatment process, the elastic coating material can be heated and stirred to accelerate the removal of bubbles.

[0055] After the bubbles are removed, the pressure in the storage bin 20 is released to reduce the pressure in the storage bin 20 to normal atmospheric pressure, and then the storage bin 20 is sucked out by the suction pump 26, and then sprayed on the bending part of the sheet metal by the nozzle 19.

[0056] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0057] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A sheet metal bending mechanism for new energy vehicles, characterized in that: It includes an operating table and a locking frame fixedly mounted on the operating table; The locking frame is provided with a bending assembly, the operating table is provided with a fixing plate via a moving assembly, the fixing plate is provided with a spraying assembly via a lifting assembly, the spraying assembly includes a spray head, and a feeding assembly is provided between the operating table and the spray head; The nozzle comprises a material storage bin, which is connected to a feeding assembly, a bubble removal assembly is installed on the material storage bin, a suction pump is fixedly installed at the bottom of the material storage bin, and a nozzle is fixedly installed at the bottom of the suction pump.

2. The sheet metal bending mechanism for new energy vehicles according to claim 1, characterized in that: The bending component package is slidably mounted on a support plate on a locking frame, a pressure roller is rotatably mounted on the support plate, a third electric push rod is fixedly mounted below the operating table, and a telescopic end of the third electric push rod is fixedly connected to the support plate.

3. The sheet metal bending mechanism for new energy vehicles according to claim 1, characterized in that: The moving assembly includes a fixed frame fixedly mounted on the operating table, a first motor is fixedly mounted on the fixed frame, and a lead screw is rotatably mounted on the fixed frame, a driving end of the first motor is connected to the lead screw via a coupling, a nut is threadedly rotatably mounted on the lead screw, a moving block is fixedly mounted on the nut, the moving block is slidably connected to the fixed frame, and the moving block is fixedly connected to the fixed plate.

4. The sheet metal bending mechanism for new energy vehicles according to claim 1, characterized in that: The lifting assembly includes a second electric push rod fixedly mounted on a fixed plate, a sliding plate slidably mounted on the fixed plate, a telescopic end of the second electric push rod fixedly connected to the sliding plate, and the sliding plate fixedly connected to the nozzle.

5. The sheet metal bending mechanism for new energy vehicles according to claim 4, characterized in that: The spraying assembly also includes a thermostat fixedly mounted on the sliding plate, and the thermostat is connected to the spray head.

6. The sheet metal bending mechanism for new energy vehicles according to claim 1, characterized in that: The feeding assembly includes a support frame fixedly mounted on the operating table, a feeding tank fixedly mounted on the support frame, two one-way valves fixedly mounted in the feeding tank, two one-way valves fixedly mounted with a feeding pipe fixedly connected to each of the two one-way valves, one of the feeding pipes being connected to an external elastic coating material air source, and the other feeding pipe being connected to a storage bin, a piston disk being slidably mounted in the feeding tank, a first electric push rod fixedly mounted on the support frame, and a telescopic end of the first electric push rod being fixedly connected to the piston disk.

7. The sheet metal bending mechanism for new energy vehicles according to claim 1, characterized in that: The bubble removal assembly includes a shell fixedly mounted on the top of a storage bin, a plurality of cylinder bodies fixedly mounted on the shell, a one-way piston tube slidably mounted in each of the cylinder bodies, a driving mechanism mounted between the shell and the plurality of one-way piston tubes, a suction pipe fixedly connected to each of the cylinder bodies, each of the suction pipes extends into the storage bin, and a suction disk is fixedly mounted on the plurality of suction pipes, a plurality of suction nozzles are fixedly mounted on the suction disk, a convex disk is slidably mounted in the storage bin, and a pressure relief mechanism cooperating with the plurality of suction nozzles is mounted on the convex disk.

8. The sheet metal bending mechanism for new energy vehicles according to claim 7, characterized in that: The driving mechanism includes a second motor fixedly mounted on the shell, a first eccentric disk fixedly mounted on the driving end of the second motor, a connecting rod rotatably mounted on each of the one-way piston tubes, each of the connecting rods is rotatably connected to the first eccentric disk, and a second eccentric disk is rotatably mounted on multiple connecting rods, the central axis of the second eccentric disk and the first eccentric disk are on the same vertical line, and a moving structure matching the cam is mounted on the second eccentric disk.

9. The sheet metal bending mechanism for new energy vehicles according to claim 8, characterized in that: The movable structure comprises a connecting shaft fixedly mounted on the second eccentric disk, a rotating rod fixedly mounted on the connecting shaft, a resisting rod fixedly mounted on the rotating rod, a ball matched with the convex disk rotatably mounted on the bottom of the resisting rod, a fixing ring fixedly mounted on the rotating rod, a plurality of elastic telescopic rods 1 fixedly mounted on the fixing ring, a rotating ring fixedly mounted on the telescopic ends of the plurality of elastic telescopic rods 1, and the rotating ring is rotatably connected to the convex disk; A rotating shaft is fixedly mounted on the connecting shaft, and the rotating shaft passes through the convex plate and the suction plate. A through hole matching the rotating shaft is opened in the middle of the convex plate. A spiral agitator is fixedly mounted on the rotating shaft, a friction plate is fixedly mounted on the rotating shaft, a friction ring matching the friction plate is fixedly mounted on the suction plate, and a sealing rubber plate matching the through hole is fixedly mounted on the rotating shaft.

10. The sheet metal bending mechanism for new energy vehicles according to claim 7, characterized in that: The pressure relief mechanism includes a plurality of pressure relief holes on the convex plate and matched with corresponding air suction nozzles, a plurality of elastic telescopic rods 2 are fixedly installed in each of the pressure relief holes, and a sealing plate matching with the corresponding pressure relief holes is fixedly installed at the telescopic ends of the plurality of matched elastic telescopic rods 2.

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