New energy automobile protection plate welding device based on pressure clamping mechanism

Abstract

The invention relates to the technical field of guard plate welding, and discloses a new energy automobile guard plate welding device based on a pressure clamping mechanism, which comprises a working platform provided with an avoiding groove and a mounting groove, and a welding piece and a bearing plate provided with a clamping mechanism and a driving group are respectively arranged in the mounting groove and on the working platform; the clamping mechanism comprises a limiting piece and an abutting piece, the limiting piece comprises a limiting block and an abutting block, synchronous approaching of the limiting block and the abutting block is achieved through the driving set, and finally limiting work of the two protection plates is completed in different directions. The new energy automobile protection plate welding device based on the pressure clamping mechanism can effectively solve the problems that in the prior art, when protection plates are repeatedly disassembled and assembled, the continuity of welding work cannot be guaranteed, meanwhile, different protection plates are different in thickness, and when a pressing mechanism is used for fixing, adjustment is improper or pressing force is too large, the welding work cannot be guaranteed. And indentations are easily left on the surface of the protective plate, so that the qualified rate of final products is influenced.

Description

Technical Field

[0001] This invention relates to the field of protective plate welding technology, and more specifically to a new energy vehicle protective plate welding device based on a pressure clamping mechanism. Background Technology

[0002] In the structural design of new energy vehicles, protective plates are components used to protect key parts of the vehicle from damage. Common protective plates include transmission system protective plates and battery bottom protective plates. Among them, the battery bottom protective plate is a key component that protects the battery pack from physical impacts and scratches.

[0003] Because of their often large individual size, in actual production, several smaller protective plates are usually spliced ​​together by welding to form an overall battery bottom protective plate that meets the design requirements. In the existing protective plate splicing and welding process, positioning pins or clamping mechanisms are commonly used to limit the movement between the two protective plates and prevent them from shifting during the welding process.

[0004] However, existing welding methods have some problems in mass production. The existing methods require repeated disassembly and assembly of the protective plate, which cannot ensure the continuity of welding work and is difficult to meet the welding work of mass-produced protective plates. At the same time, there are differences in thickness between different batches of protective plates. When using a clamping mechanism for fixing, if the adjustment is not proper or the clamping force is too large, it is easy to leave indentations on the surface of the protective plate, which will lead to surface damage and affect the qualification rate of the final product. Summary of the Invention

[0005] To address the aforementioned shortcomings of existing technologies, this invention provides a welding device for new energy vehicle skid plates based on a pressure clamping mechanism. This device effectively solves the problems of existing technologies, which require repeated disassembly and assembly of skid plates, making it difficult to ensure the continuity of welding work and meet the needs of mass production of skid plates. Furthermore, different batches of skid plates have thickness differences, and when using a clamping mechanism for fixing, improper adjustment or excessive clamping force can easily leave indentations on the surface of the skid plate, leading to surface damage and affecting the final product's pass rate.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention provides a welding device for protective plates of new energy vehicles based on a pressure clamping mechanism, comprising:

[0008] The work platform has a clearance groove on its upper surface along the front-to-back direction, and an installation groove is provided inside the work platform. Welding parts for completing the welding work at the joint of the two guard plates are respectively provided inside the installation groove and on the work platform.

[0009] A support plate is provided inside the mounting slot. A clamping mechanism is provided on the support plate. A drive group for driving the clamping mechanism is also provided below the clamping mechanism and on the support plate.

[0010] The clamping mechanism includes a limiting member and a clamping member disposed on the support plate, with the clamping member disposed on the left and right sides of the clearance groove;

[0011] The limiting component includes two sets of symmetrically arranged locking blocks on the worktable, each set of locking blocks includes several limiting blocks. The clamping component includes two sets of clamping blocks symmetrically arranged according to the clearance groove, each set of clamping blocks includes several clamping blocks. The driving group enables the synchronous approach of several limiting blocks and several clamping blocks, and finally completes the alignment and limiting work of the two guard plates in different directions.

[0012] Furthermore, sliding grooves and guide grooves are respectively provided on the worktable corresponding to the positions of several abutment blocks and limit blocks. The interior of the clearance groove is symmetrically provided with sealing plates by tension springs. The side wall of the two sealing plates that are close to each other is provided with mating grooves. The interior of the two clearance grooves and the side of the two sealing plates that are far apart are provided with several top blocks that slide through the worktable by return springs. In the initial state, the two sealing plates are in a close contact state.

[0013] Furthermore, the limiting component also includes guide frames corresponding to the positions of several limiting blocks. Several guide frames are slidably mounted on the support plate and have through grooves on their side walls. The top of the guide frame is rotatably connected to the limiting block through a linkage block that passes through the guide groove.

[0014] Furthermore, an adjustment block is provided inside the through groove of several guide frames on the support plate and located on the same side of the left and right sides. In the initial state, the adjustment block is located on the side away from the linkage block.

[0015] Furthermore, the drive assembly includes a gear that is connected to the output shaft of the external drive motor. The outer circumference of the gear is meshed with two L-shaped racks that are symmetrical in the left and right direction and rotatably connected to the guide frame at the corresponding position. The lower end of the gear is also provided with a linkage for driving the two sides of the abutment blocks to move closer synchronously.

[0016] Furthermore, the linkage includes an adjustment disc disposed on the lower end face of the gear and having two arc-shaped grooves on the end face. The interior of each of the two arc-shaped grooves is provided with a support frame via a cylindrical rod, and the top of the support frame is connected to a corresponding abutment block.

[0017] Furthermore, a threaded rod is fixedly installed with the center of the gear facing upwards. The outer circumference of the threaded rod is threadedly connected to a mounting seat with rectangular grooves symmetrically opened in the left-right direction. The interior of each rectangular groove is rotatably connected to a hinge plate whose other end is hinged to the lower end face of the corresponding sealing plate. The hinge plate is slidably installed inside the rectangular groove in the up-down direction.

[0018] Furthermore, the welding component located on the workbench includes a support, on which a welding head for welding the joint above the two guard plates is connected via an electric slider. The welding head is also connected to a pressure block for flattening the guard plates.

[0019] Furthermore, the welded component located inside the mounting groove includes two symmetrical bearings arranged in a front-to-back direction and connected to the bracket on the outer wall of the worktable. Two slide rods are connected to the side of the two bearings that are close to each other. An electric slider with a welding head at the upper end is slidably arranged on the outer wall of the two slide rods. Matching blocks are arranged on the two side walls of the electric slider corresponding to the position of the mating groove.

[0020] The technical solution provided by this invention has the following advantages compared with the prior art:

[0021] 1. The working platform of the present invention is provided with several limiting blocks and abutting blocks in different directions. After the two guard plates are moved to the working platform, the external drive motor is controlled to drive the gear to rotate through its output shaft. When the gear rotates, the several limiting blocks and abutting blocks move closer to each other in sync, thereby realizing the alignment of the two guard plates and improving the continuity of welding work when the guard plates are in place. At the same time, the limiting method from different directions also avoids the problem of leaving indentations on the surface of the guard plates.

[0022] 2. After clamping and limiting the two guard plates, control the upper welding head to move downwards and flatten the guard plates using pressure blocks. A triangular truss is installed on the side of the lower electric slider near the sealing plate. The mating groove on the sealing plate is divided into a guide section that contacts the triangular truss and a mating section that accommodates the mating block. As the triangular truss moves, it pushes the sealing plates to the left and right sides through its interaction with the guide section. As the lower electric slider continues to move, the mating block enters the mating section. Several top plates are slidably installed inside both clearance grooves. The lower ends of these top plates have inclined sections that mate with the chamfered edges of the corresponding sealing plates. Initially, the upper surfaces of these top plates are at the same height as the upper surface of the work platform. As the two sealing plates move away from each other, the chamfered edges push the corresponding top plates to move, supporting the lower surfaces of the guard plates and ensuring the relative positions of the two guard plates and the work platform. This prevents the guard plates from falling due to gravity after being limited. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the working platform and clamping mechanism according to an embodiment of the present invention;

[0026] Figure 3 This is a three-dimensional structural diagram of the support plate and drive assembly according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the three-dimensional separation of the support plate, drive assembly, and working platform according to an embodiment of the present invention;

[0028] Figure 5 This is an embodiment of the present invention. Figure 1 A magnified structural diagram of part A in the middle;

[0029] Figure 6 This is an embodiment of the present invention. Figure 4 A magnified structural diagram of section B in the middle;

[0030] Figure 7 This is a schematic diagram of the planar structure of the sealing plate and the top block according to an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the three-dimensional separation of the welding head and the worktable surface in an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the three-dimensional separation of the clamping section and the supporting section of the clamping block according to an embodiment of the present invention;

[0033] Figure 10 This is a three-dimensional structural diagram of the support and pressure block according to an embodiment of the present invention.

[0034] The markings in the diagram represent: 100, guard plate;

[0035] 1. Working platform; 11. Clearance groove; 12. Mounting groove; 13. Welded parts; 131. Bracket; 132. Welding head; 1321. Pressure block; 133. Bearing seat; 134. Slide rod; 135. Electric slider; 136. Mating block; 14. Support plate; 141. Adjusting block; 15. Drive group; 151. Gear; 152. L-shaped rack; 153. Linkage component; 1531. Adjusting plate; 1532. Arc groove; 1533. Support frame; 154. Threaded rod; 155. Mounting seat; 156. Hinge plate; 16. Sliding groove; 17. Guide groove; 18. Sealing plate; 181. Mating groove; 19. Top block; 2. Clamping mechanism; 21. Limiting block; 212. Guide frame; 2121. Through groove; 213. Linkage block; 22. Clamping block. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] The present invention will be further described below with reference to embodiments.

[0038] Example:

[0039] Please see Figure 1 - Figure 10 This invention provides a technical solution: a welding device for protective plates of new energy vehicles based on a pressure clamping mechanism, comprising:

[0040] The work platform 1 has a clearance groove 11 on its upper surface along the front-back direction, and an installation groove 12 is provided inside the work platform 1. Welding parts 13 for completing the welding work at the joint of the two guard plates 100 are respectively provided inside the installation groove 12 and on the work platform 1.

[0041] A support plate 14 is provided inside the mounting slot 12. A clamping mechanism 2 is provided on the support plate 14. A drive group 15 for driving the clamping mechanism 2 is also provided below the clamping mechanism 2 and on the support plate 14.

[0042] The clamping mechanism 2 includes a limiting member and a clamping member disposed on the support plate 14, with the clamping member disposed on the left and right sides of the clearance groove 11;

[0043] The limiting component includes two sets of symmetrically arranged and slidably disposed on the worktable, each set of symmetrically arranged in the left-right direction, each set of symmetrically arranged in the clearance groove 11, each set of symmetrically arranged in the clearance groove 11, each set of symmetrically arranged in the clearance groove 11, each set of symmetrically arranged in the clearance groove 11, each set of symmetrically arranged in the clearance groove 11, each set of symmetrically arranged in the clearance groove 11, each set of symmetrically arranged in the clearance groove 11, each set of symmetrically arranged in the clearance groove 11, and the synchronous approach of the set of symmetrically arranged in the clearance groove 11 is achieved by the drive group 15, and finally the alignment and limiting work of the two guard plates 100 in different directions is completed.

[0044] Sliding grooves 16 and guide grooves 17 are respectively provided on the worktable corresponding to the positions of several abutment blocks 22 and limit blocks 21. The interior of the clearance groove 11 is symmetrically provided with sealing plates 18 by tension springs. The side wall of the two sealing plates 18 that are close to each other is provided with mating grooves 181. The interior of the two clearance grooves 11 and the side of the two sealing plates 18 that are far apart are provided with several top blocks 19 that slide through the worktable surface by return springs. In the initial state, the two sealing plates 18 are in a close contact state.

[0045] The limiting component also includes guide frames 212 that are set at the positions of several limiting blocks 21. Several guide frames 212 are slidably set on the support plate 14 and have through grooves 2121 on their side walls. The top of the guide frame 212 is rotatably connected to the limiting block 21 through a linkage block 213 that passes through the guide groove 17.

[0046] An adjusting block 141 is provided inside the through groove 2121 of several guide frames 212 on the support plate 14 and located on the same side of the left and right. In the initial state, the adjusting block 141 is located on the side away from the linkage block 213.

[0047] The drive assembly 15 includes a gear 151 that is connected to the output shaft of the external drive motor. The outer circumference of the gear 151 is meshed with two L-shaped racks 152 that are symmetrical in the left and right direction and rotatably connected to the guide frame 212 at the corresponding position. The lower end of the gear 151 is also provided with a linkage 153 for driving the two sides of the abutment blocks 22 to move closer synchronously.

[0048] The linkage 153 includes an adjustment plate 1531 disposed on the lower end face of the gear 151 and having two arc-shaped grooves 1532 on the end face. The interior of each of the two arc-shaped grooves 1532 is provided with a support frame 1533 through a cylindrical rod. The top of the support frame 1533 is connected to the corresponding abutment block 22.

[0049] A threaded rod 154 is fixedly installed with the center of the gear 151 facing upward. The outer circumference of the threaded rod 154 is threadedly connected to a mounting base 155 with rectangular grooves symmetrically opened in the left and right directions on the outer wall. The two rectangular grooves are rotatably connected to a hinge plate 156, the other end of which is hinged to the lower end face of the sealing plate 18 at the corresponding position. The hinge plate 156 is slidably installed inside the rectangular groove in the up and down direction.

[0050] The welding component 13 located on the workbench includes a support 131. A welding head 132 for welding the joint above the two guard plates 100 is connected to the support 131 via an electric slider 135. A pressure block 1321 for flattening the guard plates 100 is also connected to the welding head 132.

[0051] The welding component 13 located inside the mounting groove 12 includes two symmetrical bearings 133 arranged in the front-to-back direction and connected to the bracket 131 on the outer wall of the workbench. Two slide rods 134 are connected to the side of the two bearings 133 that are close to each other. Electric sliders 135 with welding heads 132 at the upper end are slidably arranged on the outer wall of the two slide rods 134. Matching blocks 136 are arranged on the two side walls of the electric sliders 135 corresponding to the positions of the matching groove 181.

[0052] In specific work,

[0053] Since the individual size of the entire vehicle upper guard plate 100 is often large, in actual production, several smaller guard plates 100 are usually spliced ​​together by welding to finally form an integral battery bottom guard plate 100 that meets the design requirements. In the existing guard plate 100 splicing and welding process, positioning pins or clamping mechanisms are generally used to limit the movement between two guard plates 100 to prevent displacement during the welding process.

[0054] However, existing welding methods have some problems in mass production. Using existing methods requires repeated disassembly and reassembly of the protective plate 100, which cannot ensure the continuity of welding work and is difficult to meet the needs of mass production of the protective plate 100. Furthermore, different batches of protective plates 100 have thickness differences. When using a clamping mechanism for fixing, improper adjustment or excessive clamping force can easily leave indentations on the surface of the protective plate 100, leading to surface damage and affecting the final product's pass rate. Based on this, the new energy vehicle protective plate welding device based on a pressure clamping mechanism is equipped with a working platform 1. Several limiting blocks 21 and abutment blocks 22 are respectively arranged on the working platform 1 along different directions. Through the control of the drive group 15, the limiting blocks 21 and abutment blocks 22 are brought closer together synchronously, thereby achieving the alignment of the two protective plates 100 and improving the continuity of the welding work. At the same time, the limiting method from different directions also avoids leaving indentations on the surface of the protective plate 100.

[0055] Specifically, when welding the guard plate 100 is required, firstly, several guard plates 100 are placed on the work platform 1 (initially, to avoid obstruction of the guard plate 100 during entry, several limiting blocks 21 and clamping blocks 22 on the work platform 1 are kept away from each other). After two guard plates 100 are moved to the work platform 1, the external drive motor drives the gear 151 to rotate through its output shaft. When the gear 151 rotates, it preferentially meshes with the L-shaped racks 152 on both sides and moves closer to each other. During the process of the two racks moving closer to each other, they respectively drive the guide frame 21 connected to them. 2. Sliding on the support plate 14 (each L-shaped rack 152 is rotatably connected to two guide frames 212, which are set in an inclined direction. The adjusting block 141 is fixedly set on the support plate 14 and located inside the through groove 2121 of the guide frame 212 on the same side. When the L-shaped rack 152 moves, since the length of the adjusting block 141 remains unchanged, the two guide frames 212 on the same side will move closer to each other synchronously under the action of the through groove 2121 and the adjusting block 141 until the limiting block 21 is in close contact with the outer wall of the guard plate 100, thereby completing the limiting and clamping work of the two guard plates 100 in the left and right directions).

[0056] It should be noted that the adjustment block 141 enables the two guide frames 212 to approach each other, thereby satisfying the limiting and clamping work of guard plates 100 of different sizes, and thus improving the versatility of welding work. (The limiting block 21 is set inside the guide groove 17, and the direction of the guide groove 17 is the same as the inclination direction of the guide frame 212. Since the linkage block 213 is rotatably connected to the limiting block 21, the limiting block 21 will not rotate during the synchronous approach of the two guide frames 212 due to the restriction of the guide groove 17, that is, it will always be in contact with the guard plate 100.) The side walls of plate 100 are parallel to ensure the stability of the clamping and limiting operation of the limiting block 21 on the guard plate 100. At the same time, the limiting block 21 has a receiving groove on the side near the guard plate 100. The opening of the receiving groove is set in an inclined shape, and several rotating rollers are rotatably installed at the inclined opening. The purpose is to adjust the position of the guard plate 100 when entering the receiving groove by adjusting the position of the guard plate 100 through the inclined opening. The setting of the rotating rollers reduces the friction between the guard plate 100 and the limiting block 21 during the movement of the guard plate 100, thereby improving the smoothness of the guard plate 100 when entering the receiving groove.

[0057] As several limiting blocks 21 approach synchronously, gear 151 synchronously drives the adjusting plate 1531 located on its lower end face to rotate. Since the support frame 1533 is slidably set inside the arc groove 1532 through the cylindrical rod, and the upper and lower ends of the cylindrical rod slide through the support plate 14 respectively, when the adjusting plate 1531 rotates, guided by the arc groove 1532, the cylindrical rod and the support frame 1533 move along the support plate 14, and finally make the abutting blocks 22 on both sides approach synchronously along the sliding groove 16, thereby completing the abutting and limiting work of the two guard plates 100 in the front and rear directions.

[0058] The clamping block 22 is set in an inverted U-shape and is divided into a clamping section and a support section. The clamping section is slidably set inside the support section by a compression spring. The support section is connected to the support frame 1533. The purpose of the clamping section being slidably set inside the support section is that when welding a smaller volume guard plate 100, the L-shaped racks 152 on both sides will inevitably move closer to each other under the drive of the gear 151. Since the position of the welded part 13 is fixed and the position of the weld is unchanged, the clamping blocks 22 on the front and rear sides do not need to change their clamping position. Therefore, when the left and right limit blocks 21 continue to move closer, the compression of the compression spring and the movement of the clamping section and the support section away from each other can adapt to the clamping and limiting work of guard plates 100 of different sizes, further improving the versatility of the welding work of the guard plate 100.

[0059] It should be noted that the lower ends of the clamping block 22 and the limiting block 21 are located inside the corresponding sliding groove 16 and guide groove 17. During the clamping and limiting operation of the two guard plates 100, the two guard plates 100 are gradually moved away from the upper surface of the worktable. This not only provides a favorable position for welding the joint between the upper and lower ends of the two guard plates 100, but also provides good heat dissipation conditions for subsequent welding work by moving the guard plates 100 away from the worktable. This avoids the problem of local heat rise of the guard plates 100 due to poor heat dissipation when the guard plates 100 are in close contact with the worktable, and ultimately ensures the welding quality of the two guard plates 100.

[0060] During the rotation of gear 151, it also drives the threaded rod 154 located at its center to rotate synchronously. When the threaded rod 154 rotates, the mounting base 155 connected to it by threads moves upward. Since the two ends of the hinge plate 156 are rotatably connected to the mounting base 155 and the sealing plate 18 respectively, and since the sealing plate 18 is slidably set inside the clearance groove 11 by a tension spring (the two sealing plates 18 have chamfers on the side walls away from each other. Initially, the two sealing plates 18 are in a tight state with the tension springs on both sides in a stretched state), when the mounting base 155 moves upward, the tension springs gradually reset and cause the sealing plates 18 on both sides to slide along their respective clearance grooves 11. Finally, after the two sealing plates 18 move away from each other, they provide space for the subsequent welding work of the welding head 132 below.

[0061] When using the limiting block 21 and the clamping block 22 to achieve multi-directional synchronous clamping and limiting, the middle of the two guard plates 100 is prone to arching or sagging. This uneven deformation caused by arching or sagging will result in the joint not being able to maintain flatness. After welding, the uneven joint will lead to uneven distribution of the weld pool, and the weld will have defects such as incomplete fusion, slag inclusion, or porosity. Therefore, it is impossible to ensure that the guard plate 100 reaches the stability and expected standard after welding. Based on this, the pressure block 1321 set on the upper welding head 132 can press down on the two guard plates 100 before welding. Through the cooperation of the pressure block 1321 and the top block 19, the two guard plates 100 are always horizontal with the working plane during the welding process, thereby ensuring the welding quality at the joint.

[0062] Specifically, after the clamping and limiting work of the two guard plates 100 is completed, the upper welding head 132 is controlled to move downward and the guard plate 100 is flattened by the pressure block 1321. Then, the upper and lower welding heads 132 are simultaneously controlled to move to the welding position and weld the joint of the two guard plates 100. When the lower electric slider 135 moves, it will gradually push the sealing plate 18 further to the left and right (the lower electric slider 135 is provided with a triangular platform on the side close to the sealing plate 18, and the mating groove 181 on the sealing plate 18 is divided into a guide section that contacts the triangular platform and a mating section that accommodates the mating block 136. When the triangular platform moves, it will push the sealing plate 18 to the left and right respectively through the cooperation with the guide section, and as the lower electric slider 135 continues to move, the mating block 136 enters the mating section).

[0063] As the sealing plates 18 move away from each other, the top plates also support the lower surfaces of the two guard plates 100. (Specifically, several top plates are slidably installed inside the two clearance grooves 11. The lower ends of the top plates are provided with inclined sections that cooperate with the chamfers of the corresponding sealing plates 18. Initially, the upper surfaces of the top blocks 19 are at the same height as the upper surface of the work platform 1. As the two sealing plates 18 move away from each other, the chamfers push the corresponding top blocks 19 to move and support the lower surfaces of the guard plates 100, ensuring the relative position of the two guard plates 100 and the work platform 1, and preventing the two guard plates 100 from falling due to gravity after being limited.)

[0064] After completing the welding work at the joints on both sides of the upper part of the two guard plates 100, the clamping mechanism 2 and the welded part 13 are reset. Finally, while transferring the welded guard plate 100 to the next processing area, the next set of guard plates 100 to be welded is transported to the work platform 1. Repeat the above work steps to complete the welding work of the next set of guard plates 100.

[0065] It is worth emphasizing that this new energy vehicle skid plate welding device based on a pressure clamping mechanism has the following main advantages:

[0066] Advantage 1: Several limiting blocks 21 and abutting blocks 22 are respectively set on the working platform 1 in different directions. After the two guard plates 100 are moved to the working platform 1, the control peripheral drive motor drives the gear 151 to rotate through its output shaft. When the gear 151 rotates, the several limiting blocks 21 and abutting blocks 22 move closer to each other in sync, thereby realizing the alignment of the two guard plates 100 and improving the continuity of welding work when the guard plates 100 are welded. At the same time, the limiting method from different directions also avoids the problem of leaving indentations on the surface of the guard plates 100.

[0067] Secondly, the adjustable block 141 allows the two guide frames 212 to approach each other, thus satisfying the limiting and clamping work of different sized guard plates 100, thereby improving the versatility of welding work. (The limiting block 21 is set inside the guide groove 17, and the direction of the guide groove 17 is the same as the inclination direction of the guide frame 212. Since the linkage block 213 is rotatably connected to the limiting block 21, the limiting block 21 will not rotate during the synchronous approach of the two guide frames 212 due to the restriction of the guide groove 17, that is, it will always be in contact with the guard plate.) The side walls of the guard plate 100 are parallel to ensure the stability of the clamping and limiting operation of the limiting block 21 on the guard plate 100. At the same time, the limiting block 21 has a receiving groove on the side near the guard plate 100. The opening of the receiving groove is set in an inclined shape, and several rotating rollers are rotatably installed at the inclined opening. The purpose is to adjust the position of the guard plate 100 when entering the receiving groove by adjusting the position of the guard plate 100 through the inclined opening. The setting of the rotating rollers reduces the friction between the guard plate 100 and the limiting block 21 during the movement of the guard plate 100, thereby improving the smoothness of the guard plate 100 when entering the receiving groove.

[0068] Thirdly, the clamping block 22 is designed in an inverted U-shape and is divided into a clamping section and a supporting section. The clamping section is slidably disposed inside the supporting section by a compression spring, and the supporting section is connected to the support frame 1533. The purpose of the clamping section being slidably disposed inside the supporting section is that when welding a smaller volume guard plate 100, the L-shaped racks 152 on both sides will inevitably move closer to each other under the drive of the gear 151. Since the position of the welded part 13 is fixed and the position of the weld is unchanged, the clamping blocks 22 on the front and rear sides do not need to change their clamping position. Therefore, when the left and right limit blocks 21 continue to move closer, the compression of the compression spring and the moving away of the clamping section and the supporting section can adapt to the clamping and limiting work of guard plates 100 of different sizes, further improving the versatility of the welding work of the guard plate 100.

[0069] Fourthly, the lower ends of the clamping block 22 and the limiting block 21 are located inside the corresponding sliding groove 16 and guide groove 17. During the clamping and limiting operation of the two guard plates 100, the two guard plates 100 are gradually moved away from the upper surface of the worktable. This not only provides a favorable position for welding the joint between the upper and lower ends of the two guard plates 100, but also provides good heat dissipation conditions for subsequent welding work by moving the guard plates 100 away from the worktable. This avoids the problem of local heat rise of the guard plates 100 due to poor heat dissipation during subsequent welding, which would otherwise be caused by the guard plates 100 being in close contact with the worktable. Ultimately, this ensures the welding quality of the two guard plates 100.

[0070] Fifthly, after the clamping and limiting work of the two guard plates 100 is completed, the upper welding head 132 is controlled to move downward, and the guard plate 100 is flattened by the pressure block 1321. A triangular truss is provided on the side of the lower electric slider 135 near the sealing plate 18, and the mating groove 181 on the sealing plate 18 is divided into a guide section that contacts the triangular truss and a mating section that accommodates the mating block 136. When the triangular truss moves, it will push the sealing plate 18 to the left and right sides respectively through its cooperation with the guide section, and as the lower electric slider 135 continues to move, the mating block 136 enters... Inside the mating section, several top plates are slidably installed inside the two clearance grooves 11. The lower ends of the top plates are provided with inclined sections that mate with the chamfered corners of the corresponding sealing plates 18. Initially, the upper surfaces of the top blocks 19 are at the same height as the upper surface of the working platform 1. As the sealing plates 18 move away from each other, the chamfered corners push the corresponding top blocks 19 to move, thus supporting the lower surface of the guard plate 100. This ensures the relative position of the two guard plates 100 and the working platform 1, preventing the two guard plates 100 from falling due to gravity after being limited.

[0071] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A welding device for protective plates of new energy vehicles based on a pressure clamping mechanism, characterized in that, include: The work platform (1) has a clearance groove (11) on its upper surface along the front-back direction, and an installation groove (12) is provided inside the work platform (1). The installation groove (12) and the work platform (1) are respectively provided with welding parts (13) for completing the welding work at the joint of the two guard plates (100). A support plate (14) is provided inside the mounting slot (12), and a clamping mechanism (2) is provided on the support plate (14). A drive group (15) for driving the clamping mechanism (2) is also provided below the clamping mechanism (2) and on the support plate (14). The clamping mechanism (2) includes a limiting member and a clamping member disposed on the support plate (14), and the clamping member is disposed on the left and right sides of the clearance groove (11); The limiting component includes two sets of symmetrically arranged and slidably disposed on the worktable, each set of symmetrically arranged in the left-right direction, each set of symmetrically arranged in the worktable ...

2. The welding device for new energy vehicle protective plates based on a pressure clamping mechanism according to claim 1, characterized in that: The workbench surface is provided with sliding grooves (16) and guide grooves (17) respectively corresponding to the positions of several abutment blocks (22) and limit blocks (21). The interior of the clearance groove (11) is provided with sealing plates (18) in a left-right symmetrical manner by means of tension springs. The side wall of the two sealing plates (18) that are close to each other is provided with mating grooves (181). The interior of the two clearance grooves (11) and the side of the two sealing plates (18) that are far apart are provided with several top blocks (19) that slide through the workbench surface by means of reset springs. In the initial state, the two sealing plates (18) are in a close contact state.

3. The welding device for new energy vehicle protective plates based on a pressure clamping mechanism according to claim 2, characterized in that: The limiting component also includes guide frames (212) corresponding to the positions of several limiting blocks (21). Several guide frames (212) are slidably arranged on the support plate (14) and have through grooves (2121) on their side walls. The top of the guide frame (212) is rotatably connected to the limiting block (21) through a linkage block (213) that passes through the guide groove (17).

4. The welding device for new energy vehicle protective plates based on a pressure clamping mechanism according to claim 3, characterized in that: An adjusting block (141) is provided inside the through groove (2121) of several guide frames (212) on the support plate (14) and located on the same side of the left and right. In the initial state, the adjusting block (141) is located on the side away from the linkage block (213).

5. A welding device for new energy vehicle protective plates based on a pressure clamping mechanism according to claim 3, characterized in that: The drive assembly (15) includes a gear (151) that is connected to the output shaft of the external drive motor. The outer circumference of the gear (151) is meshed with two L-shaped racks (152) that are symmetrical in the left and right direction and rotatably connected to the guide frame (212) at the corresponding position. The lower end of the gear (151) is also provided with a linkage (153) for driving the two sides of the abutment blocks (22) to move closer synchronously.

6. The welding device for new energy vehicle protective plates based on a pressure clamping mechanism according to claim 5, characterized in that: The linkage component (153) includes an adjustment plate (1531) disposed on the lower end face of the gear (151) and having two arc-shaped grooves (1532) on the end face. The interior of each of the two arc-shaped grooves (1532) is provided with a support frame (1533) through a cylindrical rod. The top of the support frame (1533) is connected to the corresponding abutment block (22).

7. A welding device for new energy vehicle protective plates based on a pressure clamping mechanism according to claim 6, characterized in that: The gear (151) has a threaded rod (154) fixedly installed with its center facing upward. The outer circumference of the threaded rod (154) is threadedly connected to a mounting seat (155) with rectangular grooves symmetrically opened in the left and right directions on its outer wall. The two rectangular grooves are rotatably connected to a hinge plate (156) whose other end is hinged to the lower end face of the sealing plate (18) at the corresponding position. The hinge plate (156) is slidably installed inside the rectangular groove in the up and down direction.

8. A welding device for new energy vehicle protective plates based on a pressure clamping mechanism according to claim 1, characterized in that: The welding component (13) located on the workbench includes a support (131), on which a welding head (132) for welding work at the joint above the two guard plates (100) is connected via an electric slider (135), and a pressure block (1321) for flattening the guard plate (100) is also connected to the welding head (132).

9. A welding device for new energy vehicle protective plates based on a pressure clamping mechanism according to claim 1, characterized in that: The welded component (13) located inside the mounting groove (12) includes two symmetrical bearings (133) arranged in the front-to-back direction and connected to the bracket (131) on the outer wall of the worktable. Two slide rods (134) are connected to the side of the two bearings (133) that are close to each other. The outer walls of the two slide rods (134) are slidably provided with electric sliders (135) with welding heads (132) at the upper end. The two side walls of the electric sliders (135) are provided with mating blocks (136) corresponding to the position of the mating groove (181).

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