A welding fixture for reinforcing ribs of new energy battery boxes and its welding process

Abstract

The present invention relates to the technical field of reinforcing ribs for a new energy battery case, and in particular to a reinforcing rib welding tool for a new energy battery case and a welding process thereof, comprising a supporting platform, a supporting assembly being arranged on the supporting platform, reinforcing ribs being arranged on the supporting assembly, and the supporting assembly being used to bear the reinforcing ribs; a clamping assembly being arranged around the reinforcing ribs, and the clamping assembly being used to clamp the reinforcing ribs to prevent the reinforcing ribs from moving and deforming during welding; a plurality of through holes being evenly arranged on the reinforcing ribs, and a positioning assembly being arranged through the through holes, and the positioning assembly being used to accurately position the reinforcing ribs during welding; and the reinforcing ribs are conducive to overall support of the slender beam frame structure of the reinforcing ribs, in particular, stable support is provided around the joints and corners, thereby reducing welding errors and improving welding accuracy and welding efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of reinforcing ribs for a new energy battery case, and in particular to a reinforcing rib welding tool for a new energy battery case and a welding process thereof. Background Art

[0002] The reinforcement ribs of the new energy battery box are the core parts connecting the frame and the power battery. They need to carry a power battery load of about 360kg to ensure that the core power components of the car are not damaged when the car is subjected to various complex stresses such as impact and torsion during driving. Therefore, the reinforcement ribs play an important role in bearing and connection, which directly determines the rigidity and impact resistance of the entire car body and the safety of the battery. The reinforcement welding tooling and welding process of the new energy battery box are important links to ensure the structural strength and rigidity of the battery box. The design of the reinforcement welding tooling needs to ensure that the reinforcement ribs are accurately aligned and fixed to ensure the welding quality. The tooling usually uses precise positioning devices and clamping mechanisms to achieve this purpose.

[0003] The existing battery box reinforcement ribs are in the form of a beam frame structure, which is assembled and welded from multiple frames. When welding the reinforcement ribs, their cross-section, rib direction and arrangement are considered to ensure the rigidity of the battery box while minimizing the space occupancy and weight inside the battery box. Due to the slender beam frame structure of the reinforcement ribs, the assembly and welding relationship is complex. During the actual process verification, the welding process usually results in poor welding accuracy due to inaccurate positioning, which affects the structural stability of the battery box. In addition, during the welding process, especially during the welding of slender parts at the joints and around the corners, welding errors are easily caused due to loose support, which reduces the welding quality.

[0004] Therefore, the present application provides a welding rib welding tool and a welding process thereof for a new energy battery case to solve the problems raised in the above-mentioned background technology. Summary of the invention

[0005] The purpose of the present invention is to provide a welding tool and welding process for welding ribs of new energy battery boxes, so as to solve the problems of welding errors caused by loose support and inaccurate positioning during welding when the reinforcing ribs of existing battery boxes are welded at the joints and around the corners of slender parts.

[0006] In order to solve the above technical problems, the present invention provides a reinforcing rib welding tool for a new energy battery box, comprising a support platform, a support assembly is arranged on the support platform, a reinforcing rib is arranged on the support assembly, and the support assembly is used to carry the reinforcing rib;

[0007] A clamping assembly is arranged around the reinforcing rib, and the clamping assembly is used to clamp the reinforcing rib to prevent the reinforcing rib from moving and welding deformation;

[0008] A plurality of through holes are evenly arranged on the reinforcing ribs, and positioning components are arranged through the through holes. The positioning components are used for accurate positioning of the reinforcing ribs during welding.

[0009] A further improvement of the technical solution of the present invention is that the reinforcing ribs are in the form of a beam frame structure, including a main frame, a plurality of cross beams are respectively arranged on both sides of the main frame, side frames are commonly arranged at the ends of the cross beams on each side, a front frame and a rear frame are respectively arranged at the ends of the two side frames, a mounting plate is horizontally extended from the bottom of the reinforcing ribs, all the horizontally extended mounting plates are in the same horizontal plane, a mounting plate is vertically extended from the top of the rear frame, the main frame and the cross beams are relatively vertically arranged, the main frame and the side frames are relatively parallel arranged, the cross beams, the front frame and the rear frame are relatively parallel arranged, and the reinforcing ribs and the support platform are relatively parallel arranged.

[0010] A further improvement of the technical solution of the present invention is that the support assembly also includes multiple groups of support blocks vertically arranged on the support platform, a support plate is commonly arranged on the top of each group of support blocks, the multiple support plates are all arranged horizontally and are adapted to the crossbeam and the front side frame, and multiple rear side frame support blocks are arranged on the support platform to adapt to the rear side frame, a rear side frame pad is arranged on the top of each rear side frame support block, the rear side frame support blocks and the rear side frame pads form a stepped distribution, and are respectively adapted to support the mounting plate at the bottom of the rear side frame and the bending part of the rear side frame.

[0011] A further improvement of the technical solution of the present invention is that the support assembly also includes a plurality of side frame support blocks arranged between the side frames and the support platform, a side frame pad is arranged on the top of each side frame support block, and the side frame support blocks and the side frame pads form a stepped distribution, which are respectively adapted to support the mounting plate at the bottom of the side frame and the bent portion of the side frame.

[0012] A further improvement of the technical solution of the present invention is that the support assembly also includes a main frame support block arranged between the main frame and the support platform, and the main frame support block is located on one side of the rear side frame support block.

[0013] A further improvement of the technical solution of the present invention is that the support assembly also includes a corner support block arranged at the bottom of the four corner connections of the reinforcing ribs, the bottom of the corner support block is connected to the cylinder through a piston rod, the piston rod passes through the support platform, and the cylinder is located below the support platform.

[0014] A further improvement of the technical solution of the present invention is that the clamping assembly also includes a plurality of first clamping members arranged around the main frame, the cross beam, the side frame and the front frame, a plurality of second clamping members are arranged on the outer side of the rear frame, and a third clamping member is respectively arranged at the connection between the side frame and the rear frame. The first clamping member, the second clamping member and the third clamping member all include a fixed rod arranged on the support platform, the fixed rod is axially connected to the bottom of the Y-shaped block, the inner axis of the Y-shaped block is connected to the middle part of the clamping rod, the tail end of the clamping rod is axially connected to the U-shaped block, the bottom of the U-shaped block is connected to the cylinder through a piston rod, the front end of the clamping rod of the first clamping member is a plate-like structure, the front end of the clamping rod of the second clamping member is a bent structure, and the front end of the clamping rod of the third clamping member is a T-shaped structure.

[0015] A further improvement of the technical solution of the present invention is that the positioning assembly also includes a first positioning pin that continuously penetrates the support plate and the reinforcing rib, and the bottom of the first positioning pin is connected to the cylinder through a piston rod.

[0016] A further improvement of the technical solution of the present invention is that the positioning assembly also includes a side frame positioning pin that continuously penetrates the side frame support block, the side frame pad and the reinforcing rib, and a main frame positioning pin that continuously penetrates the main frame support block and the reinforcing rib.

[0017] A welding process for a reinforcement welding tool for a new energy battery box, comprising the following steps:

[0018] S1: All the first pressing members, the second pressing members and the third pressing members retract the piston rod through the cylinder, thereby driving and lifting the pressing rod;

[0019] S2: All the first positioning pins, side frame positioning pins and main frame positioning pins extend the piston rods through the cylinders to reach the length that penetrates the through holes on the reinforcing ribs;

[0020] S3: Install the side frame, the side frame positioning pin passes through the through hole on the corresponding side frame, the installation piece at the bottom of the side frame abuts against the side frame support block, and the bent portion of the side frame abuts against the side frame cushion block;

[0021] S4: Install the front frame, the first positioning pin passes through the corresponding through hole on the front frame, and the installation piece at the bottom of the front frame abuts against the top surface of the corresponding support plate;

[0022] S5: Install the rear frame, the installation piece at the bottom of the rear frame abuts against the rear frame support block, and the bent portion of the rear frame abuts against the rear frame cushion block;

[0023] S6: Install the crossbeam, the first positioning pin passes through the through hole on the corresponding crossbeam, and the installation piece at the bottom of the crossbeam abuts against the top surface of the corresponding support plate;

[0024] S7: The corner support blocks are lifted by the cylinders and respectively pressed against the bottom of the four corner connections of the reinforcement ribs;

[0025] S8: Start the third pressing member, the second pressing member and the cylinder of the third pressing member in sequence, all the third pressing members simultaneously press the bottom mounting plates of the side frame and the rear frame, all the second pressing members respectively press the top surface of the rear frame, and all the first pressing members respectively press the top surfaces of the main frame, the crossbeam, the side frame and the front frame;

[0026] S9: Weld the connections between the main frame, side frame, front frame, rear frame and crossbeam, and complete the welding of the reinforcement ribs.

[0027] By adopting the above technical solution, the present invention has the following beneficial effects:

[0028] 1. The present invention provides a rib welding tool for a new energy battery box, wherein the support assembly of the welding tool supports and limits the main frame, side frames, cross beam, front frame and rear frame of the rib respectively, and the stable support is conducive to maintaining the precise alignment of the workpieces, thereby ensuring the uniformity and consistency of welding and improving the overall quality of welding. Specifically, a plurality of support plates support the front frame, cross beam and main frame, the rear frame support block and the rear frame pad form a stepped distribution, which are respectively adapted to support the mounting plate at the bottom of the rear frame and the bent portion of the rear frame, the side frame support block and the side frame pad form a stepped distribution, which are respectively adapted to support the mounting plate at the bottom of the side frame and the bent portion of the side frame, the main frame support block supports the connection between the main frame and the rear frame, and the corner support blocks respectively support the four corner connections of the rib; the support assembly is conducive to the overall support of the slender beam frame structure of the rib, especially the stable support around the connection and corners, the support is firm, and the welding error is reduced.

[0029] 2. The present invention provides a reinforcement welding tool for a new energy battery box. The clamping assembly of the welding tool clamps the main frame, side frame, cross beam, front frame and rear frame of the reinforcement respectively. The clamping assembly cooperates with the supporting assembly to effectively limit the reinforcement to prevent movement or vibration during welding. Specifically, multiple first clamping members clamp the top surfaces of the main frame, cross beam, side frame and front frame respectively, multiple second clamping members clamp the top surface of the rear frame, and the third clamping member clamps the bottom mounting plates of the side frame and the rear frame at the same time, so that the bottom mounting plates of the side frame and the rear frame are in the same horizontal plane, thereby enhancing the stability and accuracy of the welding corner connection; compression welding is beneficial to reducing adjustments and repositioning during welding and improving welding efficiency.

[0030] 3. The present invention provides a reinforcement welding tool for a new energy battery box. The clamping rod of the welding tool realizes the clamping and loosening of the reinforcement through the transmission of the Y-block and the U-block. The inner axis of the Y-block is connected to the middle part of the clamping rod, and the tail end of the clamping rod is connected to the U-block. The Y-block can rotate toward one side of the U-block, which is beneficial for making the clamping rod more inclined to the vertical direction when loosening the reinforcement, thereby preventing the clamping rod from affecting the installation and disassembly of the reinforcement on the welding tool.

[0031] 4. The present invention provides a reinforcement welding tool for a new energy battery box. The positioning components of the welding tool respectively position the main frame, side frame, crossbeam and front frame of the reinforcement, and accurately position the position of the reinforcement on the welding tool. Specifically, a plurality of through holes are evenly arranged on the reinforcement, and the side frame positioning pins continuously penetrate the through holes on the support plate and the reinforcement to achieve the positioning of the front frame and the crossbeam. The second positioning pin continuously penetrates the through holes of the side frame support block, the side frame pad and the reinforcement to achieve the positioning of the side frame. The main frame positioning pins continuously penetrate the through holes of the main frame support block and the reinforcement to achieve the positioning of the main frame. The positioning component can quickly and accurately position the various components of the reinforcement, and the positioning is accurate, which saves a lot of manpower and time costs, thereby improving the welding efficiency and welding accuracy.

[0032] 5. The present invention provides a rib welding tool for a new energy battery box. The support assembly, clamping assembly and positioning assembly of the welding tool can effectively and rigidly fix the ribs. The heat generated during welding will cause the ribs to expand and contract. Rigid fixation is beneficial to limiting their free deformation during welding. A plurality of through holes are evenly arranged on the ribs. The plurality of through holes are beneficial to reducing internal stress concentration during welding deformation, thereby further limiting the welding deformation of the ribs.

[0033] 6. The present invention provides a rib welding process for a new energy battery box. The welding process is based on welding tooling, and the side frames, front frames, rear frames and cross beams are installed in sequence. First, they are positioned, then supported, and finally pressed. The upper and lower surfaces of the ribs are gradually limited and fixed, which optimizes the load-bearing installation process before welding, reduces the time of auxiliary processes, and improves welding efficiency. The cross beams are symmetrically distributed on both sides of the main frame to balance the heat distribution during welding and reduce local overheating and deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a schematic diagram of the overall structure of a reinforcement welding tool for a new energy battery box;

[0036] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0037] Figure 3 It is a schematic diagram of the structure of the reinforcing rib of the present invention;

[0038] Figure 4 It is a structural schematic diagram of a reinforcement welding tool for a new energy battery box without load-bearing reinforcement ribs;

[0039] Figure 5 for Figure 4 A magnified schematic diagram of part B;

[0040] Figure 6 for Figure 4 A magnified schematic diagram of part C;

[0041] Figure 7 It is a structural schematic diagram of the support platform and the support assembly of the present invention;

[0042] Figure 8 It is a structural schematic diagram of the side frame support block of the present invention;

[0043] Fig. 9 It is a structural schematic diagram of the main frame support block of the present invention;

[0044] Fig.10 It is a schematic diagram of the structure of the corner support block of the present invention;

[0045] Fig.11 It is a structural schematic diagram of the first pressing member of the present invention;

[0046] Fig.12 is a schematic structural diagram of the second pressing member of the present invention;

[0047] Fig.13 is a schematic structural diagram of a third pressing member of the present invention;

[0048] Fig.14 It is a schematic structural diagram of the first positioning pin of the present invention.

[0049] : 1. reinforcing ribs; 11. main frame; 12. crossbeam; 13. side frame; 14. front frame; 15. rear frame; 16. mounting plate; 17. through hole; 2. support platform; 3. support assembly; 31. support block; 32. support plate; 33. rear frame support block; 34. rear frame pad; 35. side frame support block; 36. side frame pad; 37. main frame support block; 38. corner support block; 4. clamping assembly; 41. first clamping member; 42. second clamping member; 43. third clamping member; 44. fixing rod; 45. Y-block; 46. clamping rod; 47. U-block; 5. positioning assembly; 51. first positioning pin; 52. side frame positioning pin; 53. main frame positioning pin; 6. piston rod; 7. cylinder. DETAILED DESCRIPTION

[0050] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] The present invention is further explained below in conjunction with specific implementation modes.

[0054] like Figure 1-Figure 14As shown, the present embodiment provides a welding tool for a reinforcement 1 of a new energy battery box, comprising a support platform 2, the support platform 2 is a flat structure, a support assembly 3 is arranged on the support platform 2, a reinforcement 1 is arranged on the support assembly 3, and the support assembly 3 is used to bear the reinforcement 1; a clamping assembly 4 is arranged around the reinforcement 1, and the clamping assembly 4 is used to clamp the reinforcement 1 to prevent the reinforcement 1 from moving and welding deformation; a plurality of through holes 17 are evenly arranged on the reinforcement 1, and a positioning assembly 5 is arranged through the through hole 17, and the positioning assembly 5 is used to accurately position the reinforcement 1 during welding.

[0055] like Figure 1 , Figure 3 As shown, in this embodiment, the reinforcing rib 1 is in a beam frame structure, including a main frame 11, a plurality of beams 12 are respectively arranged on both sides of the main frame 11, and a side frame 13 is commonly arranged at the end of the beam 12 on each side, and a front frame 14 and a rear frame 15 are respectively arranged at the ends of the two side frames 13, and a mounting piece 16 is horizontally extended from the bottom of the reinforcing rib 1. The horizontally extended mounting piece 16 is used to fix the reinforcing rib 1 on the bottom surface of the battery box after welding is completed, so that all the horizontally extended mounting pieces 16 are in the same horizontal plane, and a mounting piece 16 is vertically extended from the top of the rear frame 15. The vertically extended mounting piece 16 is used to be installed on the side wall of the battery box, the main frame 11 and the beam 12 are relatively vertically arranged, the main frame 11 and the side frame 13 are relatively parallel, the beam 12, the front frame 14 and the rear frame 15 are relatively parallel, and the reinforcing rib 1 and the supporting platform 2 are relatively parallel.

[0056] like Figure 1-Figure 10As shown, in this embodiment, the support assembly 3 supports and limits the main frame 11, the side frame 13, the cross beam 12, the front frame 14 and the rear frame 15 of the reinforcing rib 1 respectively, and the stable support is conducive to maintaining the precise alignment of the workpieces, thereby ensuring the uniformity and consistency of welding and improving the overall quality of welding; the support assembly 3 also includes a plurality of groups of support blocks 31 vertically arranged on the support platform 2, and a support plate 32 is commonly arranged on the top of each group of support blocks 31, and protrusions are arranged at both ends of each support block 31, which are respectively engaged in the support platform 2 and the support plate 32, and a plurality of support blocks 31 are connected to each other. The support plates 32 are all arranged horizontally and adapted to the cross beam 12 and the front side frame 14. Multiple support plates 32 support the front side frame 14, the cross beam 12 and the main frame 11. The main frame 11 is arranged vertically relative to the support plates 32 and is located in the middle position of the support plates 32. Multiple rear side frame support blocks 33 are arranged on the support platform 2 to adapt to the rear side frame 15. A rear side frame pad 34 is arranged on the top of each rear side frame support block 33. The rear side frame support blocks 33 and the rear side frame pad 34 form a stepped distribution, which are respectively adapted to support the mounting plate 16 at the bottom of the rear side frame 15 and the bent portion of the rear side frame 15. The support assembly 3 further includes a plurality of side frame support blocks 35 disposed between the side frame 13 and the support platform 2. A side frame cushion block 36 is disposed on the top of each side frame support block 35. The side frame support blocks 35 and the side frame cushion blocks 36 are arranged in a stepped manner, respectively adapted to support the mounting plate 16 at the bottom of the side frame 13 and the bent portion of the side frame 13. The support assembly 3 further includes a main frame support block 37 disposed between the main frame 11 and the support platform 2. The main frame support block 37 is located on one side of the rear side frame support block 33. The support assembly 3 further includes a corner support block 38 disposed at the bottom of the four corner connections of the reinforcing rib 1, which is used to support the four corner connections of the reinforcing rib 1 respectively. The bottom of the corner support block 38 is connected to the cylinder 7 through the piston rod 6. The piston rod 6 penetrates the support platform 2. The cylinder 7 is located below the support platform 2. The support assembly 3 is conducive to the overall support of the slender beam frame structure of the reinforcing rib 1, especially the stable support around the connection and the corner, and the reduction of welding errors.

[0057] like Figure 1-Figure 6 , Figure 11-13As shown, in this embodiment, the clamping assembly 4 also includes a plurality of first clamping members 41 arranged around the main frame 11, the cross beam 12, the side frame 13 and the front frame 14, a plurality of second clamping members 42 are arranged on the outer side of the rear frame 15, and a third clamping member 43 is respectively arranged at the connection between the side frame 13 and the rear frame 15. The first clamping member 41, the second clamping member 42 and the third clamping member 43 all include a fixing rod 44 arranged on the support platform 2, and the fixing rod 44 is axially connected to the Y-shaped block 45. The bottom of the Y-shaped block 45 is axially connected to the middle of the clamping rod 46, and the tail end of the clamping rod 46 is axially connected to the U-shaped block 47. The bottom of the U-shaped block 47 is connected to the cylinder 7 through the piston rod 6. The clamping rod 46 is transmitted by the Y-shaped block 45 and the U-shaped block 47 to realize the clamping and loosening of the reinforcing rib 1. The Y-shaped block 45 can rotate to one side of the U-shaped block 47, which is conducive to making the clamping rod 46 more inclined to the vertical direction when loosening the reinforcing rib 1. The range of movement of the clamping rod 46 is larger, preventing the clamping rod 4 6 affects the installation and disassembly of the reinforcing rib 1 on the welding tooling; the front end of the clamping rod 46 of the first clamping member 41 is a plate-shaped structure, and the multiple first clamping members 41 respectively clamp the top surfaces of the main frame 11, the cross beam 12, the side frame 13 and the front frame 14; the front end of the clamping rod 46 of the second clamping member 42 is a bent structure, and since the top of the rear frame 15 is vertically extended to provide the mounting piece 16, the front end of the clamping rod 46 of the second clamping member 42 is a bent structure that can avoid the vertical The third clamping member 43 has a T-shaped front end and the bottom mounting plates 16 of the side frame 13 and the rear frame 15 are simultaneously clamped, so that the bottom mounting plates 16 of the side frame 13 and the rear frame 15 are in the same horizontal plane, thereby enhancing the stability and accuracy of the welding corner connection. The compression welding is beneficial to reduce adjustments and repositioning during the welding process and improve the welding efficiency.

[0058] like Figure 1-Figure 9 , Fig.14As shown, in this embodiment, the positioning assembly 5 also includes a first positioning pin 51 that continuously passes through the support plate 32 and the reinforcing rib 1, and the bottom of the first positioning pin 51 is connected to the cylinder 7 through the piston rod 6. The positioning assembly 5 also includes a side frame positioning pin 52 that continuously passes through the side frame support block 35, the side frame pad 36 and the reinforcing rib 1, and a main frame positioning pin 53 that continuously passes through the main frame support block 37 and the reinforcing rib 1. The side frame support block 35 and the main frame support block 37 are both door-shaped structures. The positioning assembly 5 positions the main frame 11, the side frame 13, the crossbeam 12 and the front frame 14 of the reinforcing rib 1 respectively, and accurately locates the position of the reinforcing rib 1 on the welding tooling. Specifically, a plurality of through holes 17 are evenly provided on the reinforcing rib 1, and the side frame positioning pin 52 The through holes 17 on the support plate 32 and the reinforcement rib 1 are continuously penetrated to realize the positioning of the front frame 14 and the cross beam 12. The second positioning pin continuously penetrates the side frame support block 35, the side frame pad block 36 and the through hole 17 of the reinforcement rib 1 to realize the positioning of the side frame 13. The main frame positioning pin 53 continuously penetrates the main frame support block 37 and the through hole 17 of the reinforcement rib 1 to realize the positioning of the main frame 11. The positioning assembly 5 can quickly and accurately position the various components of the reinforcement rib 1, saving a lot of manpower and time costs, thereby improving welding efficiency and welding accuracy.

[0059] like Figure 1 , Figure 3 , Figure 4 As shown, in this embodiment, the support assembly 3, the clamping assembly 4 and the positioning assembly 5 can effectively and rigidly fix the reinforcing rib 1. The heat generated during the welding process will cause the reinforcing rib 1 to expand and contract. The rigid fixation is beneficial to limiting its free deformation during welding. A plurality of through holes 17 are evenly arranged on the reinforcing rib 1. The plurality of through holes 17 are beneficial to reducing the internal stress concentration during welding deformation, thereby further limiting the welding deformation of the reinforcing rib 1.

[0060] A welding process for a reinforcement welding tool for a new energy battery box, comprising the following steps:

[0061] S1: All the first pressing members 41, the second pressing members 42 and the third pressing members 43 contract the piston rod 6 through the cylinder 7, thereby driving the lifting pressing rod 46;

[0062] S2: All the first positioning pins 51, the side frame positioning pins 52 and the main frame positioning pins 53 extend the piston rod 6 through the cylinder 7, so as to reach the length that penetrates the through hole 17 on the reinforcing rib 1;

[0063] S3: Install the side frame 13, the side frame positioning pin 52 passes through the corresponding through hole 17 on the side frame 13, the mounting piece 16 at the bottom of the side frame 13 abuts against the side frame support block 35, and the bent portion of the side frame 13 abuts against the side frame cushion block 36;

[0064] S4: Install the front frame 14, the first positioning pin 51 passes through the corresponding through hole 17 on the front frame 14, and the mounting piece 16 at the bottom of the front frame 14 abuts against the top surface of the corresponding support plate 32;

[0065] S5: Install the rear frame 15, the installation piece 16 at the bottom of the rear frame 15 abuts against the rear frame support block 33, and the bent portion of the rear frame 15 abuts against the rear frame cushion block 34;

[0066] S6: Install the crossbeam 12, the first positioning pin 51 passes through the corresponding through hole 17 on the crossbeam 12, and the mounting piece 16 at the bottom of the crossbeam 12 abuts against the top surface of the corresponding support plate 32;

[0067] S7: The corner support blocks 38 are lifted by the cylinder 7 and respectively abut against the bottom of the four corner connections of the reinforcing rib 1;

[0068] S8: The third pressing member 43, the second pressing member 42 and the cylinder 7 of the third pressing member 43 are activated in sequence, all the third pressing members 43 simultaneously press the bottom mounting plates 16 of the side frame 13 and the rear frame 15, all the second pressing members 42 respectively press the top surface of the rear frame 15, and all the first pressing members 41 respectively press the top surfaces of the main frame 11, the cross beam 12, the side frame 13 and the front frame 14;

[0069] S9: Weld the interconnections between the main frame 11, the side frame 13, the front frame 14, the rear frame 15 and the crossbeam 12 to complete the welding of the reinforcing rib 1.

[0070] The welding process is based on welding tooling, and the side frames 13, front frame 14, rear frame 15 and cross beam 12 are installed in sequence. First, they are positioned, then supported, and finally pressed. The upper and lower surfaces of the reinforcing rib 1 are gradually limited and fixed, which optimizes the load-bearing installation process before welding, reduces the time of auxiliary processes, and improves welding efficiency. The cross beams 12 are symmetrically distributed on both sides of the main frame 11 to balance the heat distribution during welding and reduce local overheating and deformation.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A reinforcing rib welding tool for a new energy battery box, characterized in that: The invention comprises a support platform (2), a support assembly (3) is arranged on the support platform (2), a reinforcing rib (1) is arranged on the support assembly (3), the support assembly (3) is used to bear the reinforcing rib (1), the reinforcing rib (1) is in a beam frame structure, comprises a main frame (11), a plurality of cross beams (12) are arranged on both sides of the main frame (11), a side frame (13) is arranged at the end of each side cross beam (12), and a front frame (14) and a rear frame (15) are arranged at the ends of the two side frames (13). , a mounting piece (16) is horizontally extended from the bottom of the reinforcing rib (1), all the horizontally extended mounting pieces (16) are in the same horizontal plane, a mounting piece (16) is vertically extended from the top of the rear frame (15), the main frame (11) and the crossbeam (12) are relatively vertically arranged, the main frame (11) and the side frame (13) are relatively parallelly arranged, the crossbeam (12), the front frame (14) and the rear frame (15) are relatively parallelly arranged, and the reinforcing rib (1) and the supporting platform (2) are relatively parallelly arranged; The support assembly (3) further comprises a plurality of groups of support blocks (31) vertically arranged on the support platform (2), a support plate (32) being arranged on the top of each group of support blocks (31), the plurality of support plates (32) being arranged horizontally and adapted to the crossbeam (12) and the front side frame (14), a plurality of rear side frame support blocks (33) being arranged on the support platform (2) and adapted to the rear side frame (15), a rear side frame cushion block (34) being arranged on the top of each rear side frame support block (33), the rear side frame support blocks (33) and the rear side frame cushion blocks (34) being arranged in a stepped manner and adapted to the mounting plate (16) at the bottom of the rear side frame (15) and the bent portion of the rear side frame (15) respectively; The support assembly (3) further comprises a plurality of side frame support blocks (35) arranged between the side frame (13) and the support platform (2), a side frame cushion block (36) being arranged on the top of each side frame support block (35), the side frame support blocks (35) and the side frame cushion blocks (36) forming a stepped distribution, respectively adapted to support the mounting plate (16) at the bottom of the side frame (13) and the bent portion of the side frame (13); A clamping assembly (4) is arranged around the reinforcing rib (1), and the clamping assembly (4) is used to clamp the reinforcing rib (1) to prevent the reinforcing rib (1) from moving and deforming due to welding; A plurality of through holes (17) are evenly arranged on the reinforcing rib (1), and a positioning component (5) is arranged through the through holes (17). The positioning component (5) is used to accurately position the reinforcing rib (1) during welding.

2. A reinforcing rib welding tool for a new energy battery box according to claim 1, characterized in that: The support assembly (3) further comprises a main frame support block (37) arranged between the main frame (11) and the support platform (2), wherein the main frame support block (37) is located on one side of the rear side frame support block (33).

3. A reinforcing rib welding tool for a new energy battery box according to claim 2, characterized in that: The support assembly (3) further comprises a corner support block (38) arranged at the bottom of the four corner connections of the reinforcing rib (1); the bottom of the corner support block (38) is connected to the cylinder (7) via a piston rod (6); the piston rod (6) passes through the support platform (2); and the cylinder (7) is located below the support platform (2).

4. A reinforcing rib welding tool for a new energy battery box according to claim 3, characterized in that: The clamping assembly (4) further comprises a plurality of first clamping members (41) arranged around the main frame (11), the cross beam (12), the side frame (13) and the front frame (14); a plurality of second clamping members (42) are arranged on the outer side of the rear frame (15); and third clamping members (43) are respectively arranged at the connection between the side frame (13) and the rear frame (15); the first clamping members (41), the second clamping members (42) and the third clamping members (43) all comprise a fixing rod (44) arranged on the support platform (2). ), the fixing rod (44) is axially connected to the bottom of the Y-shaped block (45), the inner axis of the Y-shaped block (45) is connected to the middle of the clamping rod (46), the tail end of the clamping rod (46) is axially connected to the U-shaped block (47), the bottom of the U-shaped block (47) is connected to the cylinder (7) through the piston rod (6), the front end of the clamping rod (46) of the first clamping member (41) is a plate-shaped structure, the front end of the clamping rod (46) of the second clamping member (42) is a bent structure, and the front end of the clamping rod (46) of the third clamping member (43) is a T-shaped structure.

5. A reinforcing rib welding tool for a new energy battery box according to claim 4, characterized in that: The positioning assembly (5) further comprises a first positioning pin (51) which continuously penetrates the support plate (32) and the reinforcing rib (1), and the bottom of the first positioning pin (51) is connected to the cylinder (7) via a piston rod (6).

6. A reinforcing rib welding tool for a new energy battery box according to claim 5, characterized in that: The positioning assembly (5) further comprises a side frame positioning pin (52) which continuously penetrates the side frame support block (35), the side frame cushion block (36) and the reinforcing rib (1), and a main frame positioning pin (53) which continuously penetrates the main frame support block (37) and the reinforcing rib (1).

7. A welding process for a reinforcing rib welding tool for a new energy battery box according to claim 6, characterized in that: The steps include: S1: All the first pressing members (41), the second pressing members (42) and the third pressing members (43) retract the piston rod (6) through the cylinder (7), thereby driving the lifting pressing rod (46); S2: All the first positioning pins (51), the side frame positioning pins (52) and the main frame positioning pins (53) extend the piston rod (6) through the cylinder (7) to reach a length that penetrates the upper through hole (17) of the reinforcing rib (1); S3: installing the side frame (13), the side frame positioning pin (52) passes through the through hole (17) on the corresponding side frame (13), the mounting piece (16) at the bottom of the side frame (13) abuts against the side frame support block (35), and the bent portion of the side frame (13) abuts against the side frame cushion block (36); S4: installing the front side frame (14), wherein the first positioning pin (51) passes through the through hole (17) on the corresponding front side frame (14), and the mounting piece (16) at the bottom of the front side frame (14) abuts against the top surface of the corresponding support plate (32); S5: installing the rear side frame (15), wherein the mounting piece (16) at the bottom of the rear side frame (15) abuts against the rear side frame support block (33), and the bent portion of the rear side frame (15) abuts against the rear side frame cushion block (34); S6: Install the crossbeam (12), wherein the first positioning pin (51) passes through the through hole (17) on the corresponding crossbeam (12), and the mounting piece (16) at the bottom of the crossbeam (12) abuts against the top surface of the corresponding support plate (32); S7: The corner support blocks (38) are lifted by the cylinder (7) and respectively abut against the bottom of the four corner connections of the reinforcing ribs (1); S8: sequentially start the third pressing member (43), the second pressing member (42) and the cylinder (7) of the third pressing member (43), all the third pressing members (43) simultaneously press the bottom mounting plates (16) of the side frames (13) and the rear frame (15), all the second pressing members (42) respectively press the top surface of the rear frame (15), and all the first pressing members (41) respectively press the top surfaces of the main frame (11), the crossbeam (12), the side frames (13) and the front frame (14); S9: Welding the interconnections between the main frame (11), the side frame (13), the front frame (14), the rear frame (15) and the crossbeam (12) to complete the welding of the reinforcing ribs (1).

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