Electric vehicle frame assembly welding tool and welding method

Abstract

The invention relates to the technical field of frame assemblies, in particular to an electric vehicle frame assembly welding tool and a welding method.The electric vehicle frame assembly welding tool comprises a base, a welding table is arranged on the base, a mechanical arm is arranged on one side of the welding table, a protection mechanism is arranged on the base, and a knocking mechanism is further arranged on the base; a fixing hand is arranged at the upper end of the welding table, fixing plates are arranged at the two ends of the fixing hand correspondingly, the protection mechanism comprises two sets of second fixing columns arranged on the base, and first connecting rods penetrate through the interiors of the two sets of second fixing columns. The connecting block moves to drive the shell to move, the shell moves to wrap a frame on the welding table, and the situation that sparks generated in the welding process splash to the periphery and affect the surrounding environment is avoided, and meanwhile the situation that the splashed sparks possibly injure workers or corrode surrounding objects or injure the workers is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle frame assemblies, and particularly to a welding tooling and a welding method for an electric vehicle frame assembly. Background Art

[0002] The vehicle frame assembly generally includes partial assemblies such as a main beam, longitudinal beams, a gantry beam, a middle cross beam, and a tail cross beam, and is assembled into a whole by welding. The vehicle frame assembly is a key load-bearing component in an automobile. Its upper end is connected to the vehicle body shell, and its lower end is connected to the traveling device, and it needs to withstand strong dynamic and static load impacts. Therefore, the requirements for welding are relatively high.

[0003] When the existing vehicle frame assembly welding tooling is in use, a lot of sparks will be generated during welding. Due to the spark splash, when a worker walks past the device, the splashed sparks may cause certain damage to the worker, and when the splashed sparks fall around, they may cause pollution to the environment around the device and affect the environment around the device. Summary of the Invention

[0004] The purpose of the present invention is to provide a welding tooling and a welding method for an electric vehicle frame assembly. By the movement of the second rack to drive the movement of the connecting block, the movement of the connecting block drives the movement of the outer shell, and the movement of the outer shell wraps the vehicle frame on the welding table, avoiding the sparks generated during welding from splashing to the surroundings and affecting the surrounding environment. At the same time, the splashed sparks may cause harm to the worker, or cause corrosion to the surrounding items, resulting in damage to the personnel.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A welding tooling for an electric vehicle frame assembly, including a base, a welding table is arranged on the base, a manipulator is arranged on one side of the welding table, a protection mechanism is arranged on the base, a knocking mechanism is also arranged on the base, a fixing hand is arranged at the upper end of the welding table, and fixing plates are arranged at both ends of the fixing hand;

[0006] The protection mechanism includes two groups of second fixing columns arranged on the base. A first connecting rod penetrates through the two groups of second fixing columns. A first gear is penetrated through the first connecting rod. A first rack is engaged with the bottom of the first gear. One side of the first rack is connected with a sliding block. Expansion rods are respectively arranged on both sides of the sliding block. One end of the expansion rod is connected with a sliding rod. The sliding rod is arranged inside the fixing plate. An outer shell is arranged outside the welding table. A second rack is arranged on one side of the outer shell. The second rack is engaged with the first gear;

[0007] The knocking mechanism includes two sets of third racks arranged on the outer shell. On one side of each of the two sets of third racks, a half gear is engaged. On both sides of the half gear, third fixing columns are arranged. A second connecting rod penetrates through the interior of the third fixing column, and three eccentric wheels are arranged on the second connecting rod.

[0008] Preferably, a first fixing column is arranged on one side of the manipulator on the base. One end of the first fixing column is connected to the fixing hand. A limiting groove is arranged inside the fixing hand, and a limiting plate is arranged on the fixing plate. The size of the limiting groove is adapted to that of the limiting plate.

[0009] Preferably, two limiting columns also penetrate through the fixing plate, and an anti-slip pad is arranged inside the fixing plate.

[0010] Preferably, a first groove is arranged on the welding table, and its size is adapted to that of the sliding block. One side of the first rack penetrates through the first fixing column and is connected to the sliding block.

[0011] Preferably, a protective shell is arranged on the base, and the protective shell wraps the first rack.

[0012] Preferably, a connecting block is arranged at the lower end of the second rack, and the connecting block is connected to the outer shell.

[0013] Preferably, multiple groups of brushes are evenly arranged on the sliding rod.

[0014] Preferably, a second groove is arranged inside the base, and the size of the second groove is adapted to that of the outer shell.

[0015] Preferably, a notch is arranged on the outer shell, and the second rack is arranged in the notch.

[0016] A welding method for an electric vehicle frame, and its usage method includes the following steps:

[0017] Step 1: Before welding, place the frame to be welded on the welding table, fix the frame through the fixing hand and the fixing plates on both sides. At the same time, move the manipulator to the bottom of the frame to be welded, drive the sliding rod to move, and pre-clean the frame to be welded.

[0018] Step 2: When the sliding block moves, it drives the first gear to rotate. The rotation of the first gear drives the second rack to move. The movement of the second rack drives the outer shell to rise and wrap the welding table, preventing sparks from spilling during welding.

[0019] Step 3: After welding, the manipulator returns to its original position, driving the outer shell to descend. The descent of the outer shell drives the third rack to move. The movement of the third rack drives the half gear to rotate. The rotation of the half gear drives the eccentric wheel to rotate, and the rotation of the eccentric wheel knocks the welded frame to eliminate the stress of the frame after welding.

[0020] Step 4: After the outer shell descends to its original position, take out the vehicle frame on the welding table, and at the same time, place the next vehicle frame to be welded.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. In the present invention, the movement of the second rack drives the movement of the connecting block, the movement of the connecting block drives the movement of the outer shell, and the movement of the outer shell wraps the vehicle frame on the welding table, avoiding the sparks generated during welding from splashing around, affecting the surrounding environment. At the same time, the splashing sparks may cause harm to the staff, or cause corrosion to the surrounding items, resulting in damage to personnel.

[0023] 2. In the present invention, the descent of the outer shell drives the descent of the third rack. When the third rack descends, it contacts the semi-gear, the rotation of the semi-gear drives the rotation of the second connecting rod, the rotation of the second connecting rod drives the rotation of the eccentric wheel, and the rotation of the eccentric wheel automatically knocks the vehicle frame completed by welding on the welding table, eliminating the stress of the vehicle frame after welding, improving the welding quality, avoiding damage to the vehicle frame caused by excessive internal stress after welding, and at the same time avoiding manually eliminating stress, which may damage the vehicle frame and affect the subsequent use of the vehicle frame.

[0024] 3. In the present invention, the movement of the manipulator drives the sliding rod to move inside the fixed plate, pre-cleaning the vehicle frame to be welded. At the same time, the sliding rod slides inside the fixed plate without affecting the fixing of the vehicle frame by the fixed plate. Description of the Drawings

[0025] Figure 1 is the overall structural schematic diagram of a welding tool for an electric vehicle frame assembly of the present invention;

[0026] Figure 2 is the first schematic diagram of the protection mechanism of a welding tool for an electric vehicle frame assembly of the present invention;

[0027] Figure 3 is the second schematic diagram of the protection mechanism of a welding tool for an electric vehicle frame assembly of the present invention;

[0028] Figure 4 is the first schematic diagram of the knocking mechanism of a welding tool for an electric vehicle frame assembly of the present invention;

[0029] Figure 5 is the second schematic diagram of the knocking mechanism of a welding tool for an electric vehicle frame assembly of the present invention;

[0030] Figure 6 is the first partial structural schematic diagram of a welding tool for an electric vehicle frame assembly of the present invention;

[0031] Figure 7 is the schematic diagram of the fixed hand structure of a welding tool for an electric vehicle frame assembly of the present invention.

[0032] In the figure: 1. Base; 11. Manipulator; 111. Slide block; 112. Welding table; 12. Fixed hand; 121. First fixed column; 122. Limiting column; 123. Limiting groove; 13. Fixed plate; 131. Limiting plate; 2. Protection mechanism; 21. Second fixed column; 211. First connecting rod; 22. First gear; 221. First rack; 222. Protection shell; 223. Second rack; 224. Connecting block; 23, 24. Outer shell; 25. Telescopic rod; 26. Slide rod; 3. Knocking mechanism; 31. Third fixed column; 32. Third rack; 33. Half gear; 34. Eccentric wheel; 341. Second connecting rod. Detailed implementation mode

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0034] The present invention provides a welding tooling for an electric vehicle frame assembly, including a base 1, a welding table 112 is arranged on the base 1, a manipulator 11 is arranged on one side of the welding table 112, a protection mechanism 2 is arranged on the base 1, a knocking mechanism 3 is also arranged on the base 1, a fixed hand 12 is arranged at the upper end of the welding table 112, and fixed plates 13 are arranged at both ends of the fixed hand 12;

[0035] The protection mechanism 2 includes two groups of second fixed columns 21 arranged on the base 1, a first connecting rod 211 penetrates through the two groups of second fixed columns 21, a first gear 22 penetrates through the first connecting rod 211, a first rack 221 is engaged with the bottom of the first gear 22, a slide block 111 is connected to one side of the first rack 221, telescopic rods 25 are respectively arranged on both sides of the slide block 111, one end of the telescopic rod 25 is connected to a slide rod 26, the slide rod 26 is arranged inside the fixed plate 13, an outer shell 24 is arranged outside the welding table 112, a second rack 223 is arranged on one side of the outer shell 24, and the second rack 223 is engaged with the first gear 22;

[0036] The knocking mechanism 3 includes two groups of third racks 32 arranged on the outer shell 24, half gears 33 are respectively engaged with one side of the two groups of third racks 32, third fixed columns 31 are respectively arranged on both sides of the half gear 33, a second connecting rod 341 penetrates through the third fixed columns 31, and three groups of eccentric wheels 34 are arranged on the second connecting rod 341.

[0037] Before using this device, place the frame to be welded on the welding table 112 before welding. Fix the frame through the fixing hand 12 and the fixing plates 13 on both sides. At the same time, move the manipulator 11 to the bottom of the frame to be welded. The movement of the manipulator 11 drives the sliding rod 26 to move inside the fixing plate 13 to pre-clean the frame to be welded. At the same time, the sliding rod 26 slides inside the fixing plate 13 without affecting the fixing of the frame by the fixing plate 13.

[0038] At the same time, the movement of the manipulator 11 drives the movement of the sliding block 111. The movement of the sliding block 111 drives the movement of the first rack 221. The movement of the first rack 221 drives the rotation of the first gear 22. The rotation of the first gear 22 drives the movement of the second rack 223. The movement of the second rack 223 drives the movement of the connecting block 224. The movement of the connecting block 224 drives the movement of the outer shell 24. The movement of the outer shell 24 wraps the frame on the welding table 112 to prevent the sparks generated during welding from splashing and affecting the surrounding environment. At the same time, the splashing sparks may cause harm to the staff or corrosion to the surrounding items.

[0039] At the same time, the movement of the outer shell 24 drives the movement of the third rack 32. When rising, the third rack 32 does not contact the half gear 33. After the welding of the frame is completed, the outer shell 24 descends to drive the third rack 32 to descend. When the third rack 32 descends, it contacts the half gear 33. The rotation of the half gear 33 drives the rotation of the second connecting rod 341. The rotation of the second connecting rod 341 drives the rotation of the eccentric wheel 34. The rotation of the eccentric wheel 34 knocks on the frame welded on the welding table 112 to eliminate the stress of the frame after welding and improve the welding quality.

[0040] In an optional embodiment, a first fixing column 121 is provided on one side of the manipulator 11 on the base 1. One end of the first fixing column 121 is connected to the fixing hand 12. A limiting groove 123 is provided inside the fixing hand 12. A limiting plate 131 is provided on the fixing plate 13. The size of the limiting groove 123 is adapted to the limiting plate 131.

[0041] It should be noted that through the limiting groove 123 inside the fixing hand 12, the fixing plate 13 can move inward without separating from the fixing hand 12, so as to fix the frame on the welding table 112, which is convenient for subsequent welding of the frame.

[0042] In an optional embodiment, two groups of limiting columns 122 are also provided through the fixing plate 13. An anti-slip pad is provided inside the fixing plate 13.

[0043] It should be noted that the movement of the two groups of fixing plates 13 is restricted by the two groups of limiting columns 122 to assist in welding the frame inside the welding table 112. At the same time, the anti-slip pad provided on the fixing plate 13 is used to assist in fixing the frame to prevent the frame from sliding during fixing and affecting the subsequent welding effect.

[0044] In an alternative embodiment, a first groove is provided on the welding table 112, with a size adapted to the slider 111. One side of the first rack 221 penetrates through the first fixing column 121 and is connected to the slider 111.

[0045] It should be noted that the slider 111 slides on the welding table 112, thereby driving the manipulator 11 to move, facilitating welding of various positions of the vehicle frame.

[0046] In an alternative embodiment, a protective shell 222 is provided on the base 1, and the protective shell 222 wraps the first rack 221.

[0047] It should be noted that the first rack 221 is arranged inside the protective shell 222. The movement of 111 drives the first rack 221 to slide inside the protective shell 222, preventing the first rack 221 from being exposed and damaged during long-term operation.

[0048] In an alternative embodiment, a connecting block 224 is provided at the lower end of the second rack 223, and the connecting block 224 is connected to the outer shell 24.

[0049] It should be noted that the rotation of the first gear 22 drives the movement of the second rack 223. The movement of the second rack 223 drives the movement of the connecting block 224. The movement of the connecting block 224 drives the movement of the outer shell 24, raising the outer shell 24 to prevent sparks from splashing during welding.

[0050] In an alternative embodiment, multiple groups of brushes are evenly arranged on the sliding rod 26.

[0051] It should be noted that when the manipulator 11 moves, it drives the telescopic rod 25 to move. The movement of the telescopic rod 25 drives the sliding rod 26 to slide inside the fixing plate 13, avoiding affecting the fixing of the vehicle frame by the fixing plate 13, and at the same time facilitating the cleaning of the vehicle frame, preventing excessive impurities from remaining on the vehicle frame and affecting the welding quality.

[0052] In an alternative embodiment, a second groove is provided inside the base 1, and the size of the second groove is adapted to the outer shell 24.

[0053] It should be noted that when the device is not in use, the outer shell 24 retracts inside the base 1, avoiding affecting the picking and placing of the vehicle frame.

[0054] In an alternative embodiment, a notch is provided on the outer shell 24, and the second rack 223 is arranged in the notch.

[0055] It should be noted that when the second rack 223 moves, it drives the outer shell 24 to rise, preventing the outer shell 24 from colliding with the device when rising and causing the device to be unusable.

[0056] A method for welding an electric vehicle frame, and its usage method includes the following steps:

[0057] Step 1: Before welding, place the frame to be welded on the welding table 112, fix the frame through the fixing hand 12 and the fixing plates 13 on both sides. At the same time, move the manipulator 11 to the bottom of the frame to be welded, drive the sliding rod 26 to move, and pre-clean the frame to be welded.

[0058] Step 2: When the sliding block 111 moves, it drives the first gear 22 to rotate. The rotation of the first gear 22 drives the second rack 223 to move. The movement of the second rack 223 drives the housing 24 to rise and wrap the welding table 112 to prevent sparks from spilling during welding.

[0059] Step 3: After welding, the manipulator 11 returns to its original position, drives the housing 24 to descend. The descent of the housing 24 drives the third rack 32 to move. The movement of the third rack 32 drives the half gear 33 to rotate. The rotation of the half gear 33 drives the eccentric wheel 34 to rotate, and the eccentric wheel 34 rotates to strike the welded frame to eliminate the stress of the frame after welding.

[0060] Step 4: After the housing 24 descends to its original position, take out the frame on the welding table 112 and put in the next frame to be welded at the same time.

[0061] Working principle: Before using this device, place the frame to be welded on the welding table 112, fix the frame through the fixing hand 12 and the fixing plates 13 on both sides. At the same time, move the manipulator 11 to the bottom of the frame to be welded. The movement of the manipulator 11 drives the sliding rod 26 to move inside the fixing plate 13. At the same time, the sliding rod 26 slides inside the fixing plate 13 without affecting the fixing of the frame by the fixing plate 13.

[0062] At the same time, the movement of the manipulator 11 drives the sliding block 111 to move. The movement of the sliding block 111 drives the first rack 221 to move. The movement of the first rack 221 drives the first gear 22 to rotate. The rotation of the first gear 22 drives the second rack 223 to move. The movement of the second rack 223 drives the connecting block 224 to move. The movement of the connecting block 224 drives the housing 24 to move, and the housing 24 moves to wrap the frame on the welding table 112.

[0063] At the same time, the movement of the housing 24 drives the third rack 32 to move. When rising, the third rack 32 does not contact the half gear 33. After the welding of the frame is completed, the housing 24 descends to drive the third rack 32 to descend. When the third rack 32 descends, it contacts the half gear 33. The rotation of the half gear 33 drives the second connecting rod 341 to rotate. The rotation of the second connecting rod 341 drives the eccentric wheel 34 to rotate, and the eccentric wheel 34 rotates to strike the welded frame on the welding table 112.

[0064] By fixing the limiting groove 123 inside the fixing hand 12, the fixing plate 13 is moved inward without detaching from the fixing hand 12, and the vehicle frame on the welding table 112 is fixed. The movement of the two groups of fixing plates 13 is restricted by the two groups of limiting columns 122 to assist in welding the vehicle frame inside the welding table 112. At the same time, the anti-slip pads provided on the fixing plate 13 are used to assist in fixing the vehicle frame. The sliding block 111 slides on the welding table 112, thereby driving the manipulator 11 to move, facilitating welding of various positions of the vehicle frame. The first rack 221 is arranged inside the protective shell 222. The movement of 111 drives the first rack 221 to slide inside the protective shell 222, preventing the first rack 221 from being exposed and damaged during long-term operation. The rotation of the first gear 22 drives the movement of the second rack 223. The movement of the second rack 223 drives the movement of the connecting block 224. The movement of the connecting block 224 drives the movement of the outer shell 24, raising the outer shell 24. When the device is not in use, the outer shell 24 shrinks inside the base 1 to avoid affecting the picking and placing of the vehicle frame. When the second rack 223 moves, it drives the outer shell 24 to rise, preventing the outer shell 24 from colliding with the device when it rises.

[0065] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding tool for an electric vehicle frame assembly, comprising a base (1), characterized in that: A welding platform (112) is provided on the base (1), a manipulator (11) is provided on one side of the welding platform (112), a protection mechanism (2) is provided on the base (1), a knocking mechanism (3) is also provided on the base (1), a fixed hand (12) is provided at the upper end of the welding platform (112), and fixed plates (13) are provided at both ends of the fixed hand (12); The protection mechanism (2) comprises two groups of second fixed columns (21) arranged on the base (1), the two groups of second fixed columns (21) are penetrated by a first connecting rod (211), the first connecting rod (211) is penetrated by a first gear (22), the bottom of the first gear (22) is meshed with a first rack (221), one side of the first rack (221) is connected to a sliding block (111), telescopic rods (25) are respectively arranged on both sides of the sliding block (111), one end of the telescopic rod (25) is connected to a sliding rod (26), the sliding rod (26) is arranged inside the fixed plate (13), a shell (24) is arranged on the outside of the welding platform (112), a second rack (223) is arranged on one side of the shell (24), and the second rack (223) is meshed with the first gear (22); The knocking mechanism (3) comprises two groups of third racks (32) arranged on the housing (24), one side of the two groups of third racks (32) is respectively meshed with a half gear (33), both sides of the half gear (33) are respectively provided with a third fixing column (31), a second connecting rod (341) is provided through the inside of the third fixing column (31), and three groups of eccentric wheels (34) are provided on the second connecting rod (341).

2. The electric vehicle frame assembly welding tool according to claim 1, characterized in that: A first fixing column (121) is arranged on one side of the robot (11) on the base (1), one end of the first fixing column (121) is connected to the fixing hand (12), a limiting groove (123) is arranged inside the fixing hand (12), a limiting plate (131) is arranged on the fixing plate (13), and the size of the limiting groove (123) is adapted to the limiting plate (131).

3. The electric vehicle frame assembly welding tool according to claim 1, characterized in that: Two groups of limiting columns (122) are also provided through the fixing plate (13), and an anti-slip pad is provided on the inner side of the fixing plate (13).

4. The electric vehicle frame assembly welding tool according to claim 1, characterized in that: The welding platform (112) is provided with a first groove, the size of which matches that of the sliding block (111); one side of the first rack (221) passes through the first fixing column (121) and is connected to the sliding block (111).

5. The electric vehicle frame assembly welding tool according to claim 1, characterized in that: A protective shell (222) is provided on the base (1), and the protective shell (222) wraps the first rack (221).

6. The electric vehicle frame assembly welding tool according to claim 5, characterized in that: A connecting block (224) is provided at the lower end of the second rack (223), and the connecting block (224) is connected to the housing (24).

7. The electric vehicle frame assembly welding tool according to claim 1, characterized in that: A plurality of groups of brushes are evenly arranged on the sliding rod (26).

8. The electric vehicle frame assembly welding tool according to claim 1, characterized in that: A second groove is provided inside the base (1), and the size of the second groove is adapted to the outer shell (24).

9. The electric vehicle frame assembly welding tool according to claim 1, characterized in that: The housing (24) is provided with a notch, and the second rack (223) is arranged in the notch.

10. A welding method for an electric vehicle frame assembly welding tool, applied to an electric vehicle frame assembly welding tool as claimed in any one of claims 1 to 9, characterized in that: The method of use includes the following steps: Step 1: Before welding, the frame to be welded is placed on the welding table (112), and the frame is fixed by the fixing hand (12) and the fixing plates (13) on both sides. At the same time, the manipulator (11) is moved to the bottom of the frame to be welded, driving the sliding rod (26) to move, and pre-cleaning the frame to be welded. Step 2: When the sliding block (111) moves, it drives the first gear (22) to rotate. The rotation of the first gear (22) drives the second rack (223) to move. The movement of the second rack (223) drives the housing (24) to rise, wrapping the welding table (112) to prevent sparks from falling during welding. Step 3: After welding, the manipulator (11) returns to its original position, driving the housing (24) to descend, the housing (24) descending drives the third rack (32) to move, the third rack (32) moves to drive the half gear (33) to rotate, the half gear (33) rotates to drive the eccentric wheel (34), the eccentric wheel (34) rotates to knock the welded frame, and eliminates the stress of the frame after welding. Step 4: After the housing (24) is lowered to its original position, the frame on the welding table (112) is taken out and the next frame to be welded is put in at the same time.

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