Battery box accessory welding tool for new energy automobile

Abstract

The invention discloses a battery box accessory welding tool for a new energy automobile, and relates to the technical field of battery box machining, the battery box accessory welding tool comprises a base, a mounting platform is arranged on the base, a supporting plate assembly is arranged on the mounting platform, and a lining welding tool, a support welding tool and a sealing plate welding tool are arranged on the supporting plate assembly; the bush welding tool comprises a plurality of rotary pressing assemblies A, a rotary pressing assembly B and a powerful pressing assembly, and a bush positioning assembly is arranged on the portion, below a front end pressing head of the rotary pressing assembly B, of the supporting plate assembly. The battery box accessory welding device is reasonable in structural design, battery box accessories are stably supported, positioned and clamped through the lining welding tool, the support welding tool and the sealing plate welding tool, the stability and accuracy of welding connection are enhanced, the uniformity and consistency of welding are ensured, the overall quality of welding is improved, and the efficiency of welding machining is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery case processing, and in particular to a welding tool for battery case accessories for new energy vehicles. Background Art

[0002] The battery box is the carrier of the power battery of new energy vehicles, and is mainly used to protect the lithium battery from damage when it is hit or squeezed by the outside world. During the processing of the battery box, small parts such as bushings, brackets, and sealing plates need to be welded on the body. In the prior art, when welding small parts such as bushings, brackets, and sealing plates, the staff usually put the small parts in place and then weld them. This is prone to problems such as inaccurate manual placement and loose support, which leads to welding deviations and poor stability, affecting the welding quality and further affecting the processing efficiency of the battery box. Summary of the invention

[0003] The purpose of the present invention is to solve the above technical problems and provide welding tooling for battery box accessories for new energy vehicles.

[0004] In order to achieve the above technical objectives and meet the above technical requirements, the technical solution adopted by the present invention is: a welding tool for battery box accessories for new energy vehicles, including a base, a mounting platform is provided on the base, a support plate assembly is provided on the mounting platform, a bushing welding tool, a bracket welding tool, and a sealing plate welding tool are provided on the support plate assembly; the bushing welding tool includes a plurality of rotary clamping assemblies A, a rotary clamping assembly B, and a strong clamping assembly, and a bushing positioning assembly is provided on the support plate assembly below the front end pressure head of the rotary clamping assembly B; The sealing plate welding tooling includes a side pressure cylinder, which is connected to the support plate assembly through a side bracket, a push plate is provided at the front end of the piston rod of the side pressure cylinder, and a first connecting block is provided at the front end surface of the push plate, and an angle block is provided at the front end surface of the first connecting block, a T-shaped block is provided at one side of the angle block, and a 7-shaped positioning block is provided above the T-shaped block, the 7-shaped positioning block is against the sealing plate, and the sealing plate is arranged on the side of the battery box mounting seat, and a second stopper and a second induction switch are provided on the 7-shaped positioning block, a shift fork connecting block is provided on one side of the side pressure cylinder, and a shift fork is provided on the shift fork connecting block, and the middle part of the shift fork is connected to the second connecting block through a symmetrical connecting plate, and the second connecting block is arranged on the first connecting block. When the side pressure cylinder is in a leakage state, the sealing plate is pre-tightened by a manual shift fork to prevent the side pressure cylinder from directly moving and damaging the workpiece.

[0005] Preferably: the rotary clamping assembly A comprises a first rotary clamping cylinder and a first supporting block, the first rotary clamping cylinder is provided with a first pressing arm, the front end of the first pressing arm is provided with a first pressing head, the middle part is connected to the first rotary clamping cylinder, and the end is provided with a first limiting block, the first rotary clamping cylinder is provided with a first sensing block, the first sensing block is provided with a slot matching the first pressing arm, the first sensing block is provided with a first sensing switch, and the first limiting block is located above the first sensing switch; the pressure head of the rotary clamping assembly A is a straight arm pressure head, the pressure head of the rotary clamping assembly B is a Z-shaped arm pressure head, and the rest of the structure is the same as that of the rotary clamping assembly A.

[0006] Preferably: the bushing positioning assembly includes a receiving block and a slide rail A arranged on the support plate assembly, the slider of the slide rail A is connected with a receiving angle block through the receiving plate A, one side of the receiving angle block is longitudinally connected with a second support through a second angle block, a positioning cylinder is arranged at the lower end of the second support, and a receiving plate B is arranged at the upper end, a positioning pin is connected to the piston rod of the positioning cylinder, and the positioning pin passes through the receiving plate B to position the bushing.

[0007] Preferably: the strong pressing assembly includes a second pressing cylinder, a second support block, and a support frame, the support frame is respectively provided with connecting ear plates on the side and the top, the support frame is connected to the second pressing cylinder through the side connecting ear plates, the second pressing cylinder is provided with a second pressing arm on the piston rod, the second pressing arm is provided with a pressure head assembly at the front end, and a support block and a limit support block are provided on the top of the support frame.

[0008] Preferably: the pressure head assembly includes a second pressure head, a stepped inner hole is provided at the front end of the second pressure head, the second pressure head is connected to a pin shaft through a sleeve, the upper end of the pin shaft is a threaded section, and a fixed block is connected through a thread, a limiting portion is provided in the middle portion of the pin shaft, and a spring is provided at the lower end of the pin shaft, one end of the spring is against the limiting portion, and the other end is against the pressure block at the bottom end of the pin shaft.

[0009] Preferably: one end of the 7-shaped positioning block is provided with an L-shaped extension portion to wrap a corner of the mounting seat to limit the front side of the sealing plate, the second stop block is arranged in an inverted T shape, and the upper end of the inverted T shape is provided with an L-shaped retaining edge to limit the upper side of the sealing plate, and the lower side of the sealing plate is limited by the Z-shaped support block.

[0010] Preferably: the bracket welding tooling includes a bracket side pressure mechanism and a bracket tightening mechanism, the bracket side pressure mechanism includes a second side pressure cylinder, the second side pressure cylinder is connected to the support plate assembly through a support, the piston rod of the second side pressure cylinder is connected to the transition plate through a joint, the transition plate is connected to the support plate assembly through a slide rail slider, a plurality of pressing assemblies are arranged on the transition plate, the front end of the pressing assembly is abutted against the inner side surface of the bracket, the bracket is arranged on the outer side surface of the battery box, a handle is arranged at one end of the transition plate, the middle part of the handle is hinged to the fixed seat, the fixed seat is arranged on the support plate assembly, and a second limit block is arranged on the support plate assembly at the rear end of the transition plate.

[0011] Preferably: the pressing assembly includes a third corner block, a third connecting block is provided on one side of the third corner block, a U-shaped fixing block is provided on one side of the third connecting block, an opening is provided at the end of the U-shaped fixing block, the pressing block passes through the opening of the U-shaped fixing block and abuts against the bracket, a second spring is sleeved on the pressing block, one end of the second spring abuts against the inner end surface of the pressing block, and the other end abuts against the inner end surface of the U-shaped fixing block.

[0012] Preferably: the bracket tightening mechanism includes an L-shaped connecting block, the L-shaped connecting block is connected to the support plate assembly, the tightening cylinder is arranged on one side of the L-shaped connecting block, a fourth connecting block is arranged on the piston rod of the tightening cylinder, an angle seat is arranged on the fourth connecting block, an L seat is arranged on one side of the angle seat, a support block is arranged on the outer side of the L seat, the bottom edge of the bracket is arranged on the support block and limited by the raised portion of the support block, and a first stop block is arranged on one side of the support block to limit the side edge of the bracket.

[0013] Compared with the traditional structure, the beneficial effects of the present invention are as follows: the structural design is reasonable, and the battery box accessories (bushing, L-shaped bracket, sealing plate) are stably supported, positioned and clamped through the bushing welding tooling, bracket welding tooling and sealing plate welding tooling, which enhances the stability and accuracy of the welding connection, ensures the uniformity and consistency of welding, improves the overall quality of welding, and improves the efficiency of welding processing; a combination of spring compression and manual pre-compression is adopted, and in the case of leakage in the cylinder, it is first manually pushed into place for pre-compression and then PLC controls the cylinder to tighten, so as to prevent the cylinder from directly moving and damaging the workpiece, thereby reducing costs; the workpiece is positioned by the bushing positioning assembly, the positioning is precise, and the welding error is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of workpiece assembly of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention; Figure 3 A top view of the present invention; Figure 4 for Figure 1 Enlarged view of point A in the middle; Figure 5 for Figure 1 Enlarged view of point B in the middle; Figure 6 for Figure 1 Enlarged view of point C in the middle; Figure 7 This is a structural schematic diagram of the rotary pressing assembly A of the present invention; Figure 8 This is a schematic diagram of the structure of the strong pressing assembly of the present invention; Fig. 9 It is a schematic diagram of the structure of the pressure head assembly of the present invention; Fig.10 It is a schematic diagram of the structure of the bushing positioning assembly of the present invention; Fig.11 This is one of the structural schematic diagrams of the side pressure mechanism of the bracket of the present invention; Fig.12 This is the second structural schematic diagram of the side pressure mechanism of the bracket of the present invention; Fig.13 It is a schematic diagram of the structure of the support tightening mechanism of the present invention; Fig.14 This is a schematic diagram of the structure of the sealing plate welding tooling of the present invention; In the figure: 1. Base, 2. Mounting platform, 3. Strong clamping assembly, 31. Second clamping cylinder, 32. Support frame, 33. Second support block, 34. Second pressure arm, 35. Pressing head assembly, 351. Second pressing head, 352. Pin, 353. Fixed block, 354. Limiting part, 355. Spring, 356. Pressing block, 36. Limiting support block, 37. Support block, 4. Support plate assembly, 5. Rotary clamping assembly A, 51. First rotary clamping cylinder, 52. First support Support block, 53. First pressure head, 54. First pressure arm, 55. First limit block, 56. First induction block, 57. First induction switch, 6. Sealing plate welding tooling, 61. Side pressure cylinder, 62. Fork connecting block, 63. Second induction switch, 64. Push plate, 65. First connecting block, 66. Angle block, 67. T-shaped block, 68. 7-shaped positioning block, 681. Extension, 69. Second stopper, 691. Side rib, 610. Fork, 611. Connecting plate, 612 .Second connecting block, 613. Side bracket, 614. Z-shaped supporting block, 7. Bracket side pressure mechanism, 71. Support, 72. Second side pressure cylinder, 73. Slide rail slider, 74. Fixed seat, 75. Handle, 76. Transition plate, 77. Pressing assembly, 771. Third corner block, 772. Third connecting block, 773. U-shaped fixing block, 774. Pressing block, 78. Second limiting block, 8. Bracket tightening mechanism, 81. Tightening cylinder, 82. L-shaped connecting block, 83. Four connecting blocks, 84. Angle seat, 85. L seat, 86. Support block, 87. First stopper, 9. Bushing positioning assembly, 91. Adapter block, 92. Slide rail A, 93. Adapter plate A, 94. Adapter angle block, 95. Second angle block, 96. Adapter plate B, 97. Locating pin, 98. Second support, 99. Positioning cylinder, 10. Rotating clamping assembly B, 11. Battery box, 111. Mounting seat, 12. Bushing, 13. Bracket, 14. Closing plate, 15. Workpiece stopper. DETAILED DESCRIPTION

[0015] The present invention will be further described below.

[0016] Refer to the attached Figure 1-3 , a welding tool for battery box accessories for new energy vehicles, comprising a base 1, a mounting platform 2 is arranged on the base 1, a support plate assembly 4 is arranged on the mounting platform 2, a bushing welding tool, a bracket welding tool, and a sealing plate welding tool 6 are arranged on the support plate assembly 4; the bushing welding tool comprises a plurality of rotary clamping assemblies A5, a rotary clamping assembly B10, and a strong clamping assembly 3, and a bushing positioning assembly 9 is arranged on the support plate assembly 4 below the front end pressure head of the rotary clamping assembly B10; like Figure 6 , Figure 7As shown, the rotary clamping assembly A5 includes a first rotary clamping cylinder 51 and a first supporting block 52. The first rotary clamping cylinder 51 is provided with a first pressing arm 54. The front end of the first pressing arm 54 is provided with a first pressing head 53, the middle part of the first pressing arm 54 is connected to the first rotary clamping cylinder 51, and the end is provided with a first limiting block 55. The first rotary clamping cylinder 51 is provided with a first sensing block 56. The first sensing block 56 is provided with a slot matching the first pressing arm 54. The first sensing block 56 is provided with a first sensing switch 57, and the first limiting block 55 is located above the first sensing switch 57. The pressure head of the rotary clamping assembly A5 is a straight arm pressure head, and the pressure head of the rotary clamping assembly B10 is a Z-arm pressure head. The remaining structure is the same as that of the rotary clamping assembly A5. like Fig.10 As shown, the bushing positioning assembly 9 includes a receiving block 91 and a slide rail A92 arranged on a support plate assembly. The slider of the slide rail A92 is connected with a receiving angle block 94 via a receiving plate A93. One side of the receiving angle block 94 is longitudinally connected with a second support 98 via a second angle block 95. A positioning cylinder 99 is arranged at the lower end of the second support 98, and a receiving plate B96 is arranged at the upper end. A positioning pin 97 is connected to the piston rod of the positioning cylinder 99, and the positioning pin 97 passes through the receiving plate B96 to position the bushing 12.

[0017] like Figure 8 , Fig. 9 As shown, the strong pressing assembly 3 includes a second pressing cylinder 31, a second support block 33, and a support frame 32. The side and top of the support frame 32 are respectively provided with connecting ear plates. The support frame 32 is connected to the second pressing cylinder 31 through the side connecting ear plates. A second pressing arm 34 is provided on the piston rod of the second pressing cylinder 31. A pressing head assembly 35 is provided at the front end of the second pressing arm 34. A support block 37 and a limit support block 36 are provided above the support frame 32. The pressing head assembly 3 The second pressing head 351 comprises a second pressing head 351, a stepped inner hole is provided at the front end of the second pressing head 351, the second pressing head 351 is connected to a pin shaft 352 through a shaft sleeve, the upper end of the pin shaft 352 is a threaded section, and a fixing block 353 is connected through a thread, a limiting portion 354 is provided in the middle of the pin shaft 352, a spring 355 is sleeved at the lower end of the pin shaft 352, one end of the spring 355 abuts against the limiting portion 354, and the other end abuts against a pressing block 356 at the bottom end of the pin shaft 352.

[0018] like Figure 4 , Fig.11 , Fig.12As shown, the bracket welding tooling includes a bracket side pressing mechanism 7 and a bracket tightening mechanism 8, the bracket side pressing mechanism 7 includes a second side pressing cylinder 72, the second side pressing cylinder 72 is connected to the support plate assembly 4 through a support 71, the piston rod of the second side pressing cylinder 72 is connected to the transition plate 76 through a joint, the transition plate 76 is connected to the support plate assembly 4 through a slide rail slider 73, a plurality of pressing assemblies 77 are arranged on the transition plate 76, the front end of the pressing assembly 77 is against the inner side surface of the bracket 13, the bracket 13 is arranged on the outer side surface of the battery box 11, a handle 75 is arranged at one end of the transition plate 76, the middle part of the handle 75 is hinged to the fixing seat 74, the fixing seat 74 is arranged on the support plate assembly 4, and a second limit block 78 is arranged on the support plate assembly 4 at the rear end of the transition plate 76; The pressing assembly 77 includes a third corner block 771, a third connecting block 772 is provided on one side of the third corner block 771, a U-shaped fixing block 773 is provided on one side of the third connecting block 772, an opening is provided at the end of the U-shaped fixing block 773, a pressing block 774 passes through the opening of the U-shaped fixing block 773 and abuts against the bracket 13, a second spring is sleeved on the pressing block 774, one end of the second spring abuts against the inner end surface of the pressing block 774, and the other end abuts against the inner end surface of the U-shaped fixing block 773.

[0019] like Fig.13 As shown, the bracket tightening mechanism 8 includes an L-shaped connecting block 82, which is connected to the support plate assembly. The tightening cylinder 81 is arranged on one side of the L-shaped connecting block 82, and a fourth connecting block 83 is arranged on the piston rod of the tightening cylinder 81. An angle seat 84 is arranged on the fourth connecting block 83, and an L seat 85 is arranged on one side of the angle seat 84. A support block 86 is arranged on the outer side of the L seat 85. The bottom edge of the bracket 13 is arranged on the support block 86 and is limited by the raised portion of the support block 86. A first stopper 87 is arranged on one side of the support block 86 to limit the side edge of the bracket 13.

[0020] like Figure 5 , Fig.14As shown, the sealing plate welding tool 6 includes a side pressure cylinder 61, and the side pressure cylinder 61 is connected to the support plate assembly 4 through a side bracket 613. A push plate 64 is provided at the front end of the piston rod of the side pressure cylinder 61. A first connecting block 65 is provided at the front end surface of the push plate 64. A corner block 66 is provided at the front end surface of the first connecting block 65. A T-shaped block 67 is provided on one side of the corner block 66. A 7-shaped positioning block 68 is provided above the T-shaped block 67. The 7-shaped positioning block 68 is against the sealing plate 14, and the sealing plate 14 is arranged on the battery box 11. On the side of the mounting seat 111, the 7-shaped positioning block 68 is provided with a second stopper 69 and a second induction switch 63. A fork connecting block 62 is provided on one side of the side pressure cylinder 61. A fork 610 is provided on the fork connecting block 62. The middle part of the fork 610 is connected to the second connecting block 612 through a symmetrical connecting plate 611. The second connecting block 612 is provided on the first connecting block 65. When the side pressure cylinder 61 is in the leakage state, the sealing plate 14 is pre-tightened by the manual fork to prevent the side pressure cylinder 61 from directly moving and damaging the workpiece. One end of the 7-shaped positioning block 68 is provided with an L-shaped extension 681 to wrap a corner of the mounting seat 111 to limit the front side of the sealing plate 14. The second stopper 69 is set to an inverted T shape, and an L-shaped retaining edge 691 is provided at the upper end of the inverted T shape to limit the upper side of the sealing plate 14. The lower side of the sealing plate 14 is limited by the Z-shaped support block 614. Figure 6 shown.

[0021] In specific implementation, the present application mainly realizes the welding, clamping and positioning of the battery box accessories (including the bushing 12, the bracket 13, and the sealing plate 14), including the bushing welding tool, the bracket welding tool, and the sealing plate welding tool 6. The battery box 11 is placed on the installation platform 2, and is limited by the L-shaped workpiece stopper 15 distributed around the support plate assembly 4. A mounting seat 111 is provided on the outside of the battery box 11, and a plurality of mounting holes are provided on the mounting seat 111. The bushing 12 is placed in the mounting hole, and the bushing 12 is pressed by the rotary clamping assembly A5, the rotary clamping assembly B10, and the pressure head of the strong clamping assembly 3. A first support block 52 is provided below the bushing 12, and the bushing is clamped by the clamping assembly and the support block. Clamping; the pressing head of the rotary clamping assembly A5 is a straight arm pressing head, and the pressing head of the rotary clamping assembly B10 is a Z-arm pressing head. A bushing positioning assembly 9 is also provided under the rotary clamping assembly B10 located at a corner of the workpiece to position the bushing 12; the bushing 12 at the front and rear symmetrical position on the right side of the workpiece is clamped by the strong clamping assembly 3 and the second support block 33, and a spring 355 is provided at the front end of the pressing head assembly 35. Through the joint action of the second clamping cylinder 31 and the spring 355, the clamping force is stable and reliable.

[0022] The bracket 13 is welded on the outer side of the battery box 11. The bracket welding tool adopts the bracket side pressing mechanism 7 and the bracket pressing mechanism 8 to press and position. The pressing cylinder 81 is actuated to drive the L seat 85 on it to contact the lower surface of the battery box 11. The bottom edge of the bracket 13 is set on the support block 86. One side is limited by the protrusion of the support block 86, and the other side is limited by the first stopper 87. Figure 4 As shown. In order to prevent the bracket 13 from being deformed by the second side pressure cylinder 72 being directly used, in the case of leakage in the second side pressure cylinder 72, the handle 75 is manually pulled first, and the handle 75 drives the transition plate 76 and one or two sets of pressing components 77 thereon to move, and the pressing block 774 is pushed to one side of the bracket 13 for pre-tightening, and then the PLC controls the second side pressure cylinder 72 to press the bracket 13. A second spring is sleeved on the pressing block 774, and under the action of the spring elastic force, the bracket 13 can be better pressed without displacement and without damaging the workpiece.

[0023] The sealing plate 14 needs to be welded on the side of the mounting base 111 of the battery box 11. The sealing plate 14 is first manually put into place, and the lower side is limited by the Z-shaped support block 614. In order to prevent the sealing plate 14 from being deformed by directly using the side pressure cylinder 61, in the case of leakage in the side pressure cylinder 61, the fork 610 is first manually pulled, and the fork 610 drives the second connecting block 612, the first connecting block 65 and the 7-shaped positioning block 68 thereon to move, so that the 7-shaped positioning block 68 is close to the sealing plate 14 for pre-tightening, and then the PLC controls the side pressure cylinder 61 to press the sealing plate 14.

[0024] The bushing welding tool, bracket welding tool and sealing plate welding tool are used to stably support, position and clamp the battery box accessories (bushing, bracket and sealing plate), which enhances the stability and accuracy of the welding connection, ensures the uniformity and consistency of the welding, improves the overall quality of the welding and improves the efficiency of the welding process.

[0025] The above embodiments of the present invention are merely examples to clearly illustrate the present invention, but are not intended to limit the protection scope of the present invention. All equivalent technical solutions also belong to the scope of the present invention. The patent protection scope of the present invention should be defined by the claims.

Claims

1. A welding tool for battery box accessories for new energy vehicles, comprising a base (1), characterized in that: The base (1) is provided with a mounting platform (2), the mounting platform (2) is provided with a support plate assembly (4), the support plate assembly (4) is provided with a bushing welding tool, a bracket welding tool, and a sealing plate welding tool (6); the bushing welding tool comprises a plurality of rotary clamping assemblies A (5), a rotary clamping assembly B (10), and a strong clamping assembly (3), and a bushing positioning assembly (9) is provided on the support plate assembly (4) below the front end pressure head of the rotary clamping assembly B (10); The sealing plate welding tool (6) comprises a side pressure cylinder (61), the side pressure cylinder (61) being connected to the support plate assembly (4) via a side bracket (613), a push plate (64) being provided at the front end of the piston rod of the side pressure cylinder (61), a first connecting block (65) being provided at the front end surface of the push plate (64), a corner block (66) being provided at the front end surface of the first connecting block (65), a T-shaped block (67) being provided at one side of the corner block (66), a 7-shaped positioning block (68) being provided above the T-shaped block (67), the 7-shaped positioning block (68) being abutted against the sealing plate (14), and the sealing plate (14) being provided on the battery box body (11 ) on the side of the mounting seat (111), the 7-shaped positioning block (68) is provided with a second stopper (69) and a second induction switch (63), a fork connecting block (62) is provided on one side of the side pressure cylinder (61), a fork (610) is provided on the fork connecting block (62), the middle part of the fork (610) is connected to the second connecting block (612) through a symmetrical connecting plate (611), the second connecting block (612) is provided on the first connecting block (65), and when the side pressure cylinder (61) is in a leakage state, the sealing plate (14) is pre-tightened by a manual fork to prevent the side pressure cylinder (61) from directly moving and damaging the workpiece.

2. The welding tool for battery box accessories for new energy vehicles according to claim 1 is characterized in that: The rotary pressing assembly A (5) comprises a first rotary pressing cylinder (51) and a first supporting block (52); a first pressing arm (54) is provided on the first rotary pressing cylinder (51); a first pressing head (53) is provided at the front end of the first pressing arm (54); the middle part of the first pressing arm (54) is connected to the first rotary pressing cylinder (51); a first limiting block (55) is provided at the end; a first sensing block (56) is provided on the first rotary pressing cylinder (51); a slot matching the first pressing arm (54) is provided on the first sensing block (56); a first sensing switch (57) is provided in the first sensing block (56); and the first limiting block (55) is located above the first sensing switch (57).

3. The welding tool for battery box accessories for new energy vehicles according to claim 1 is characterized in that: The bushing positioning assembly (9) comprises a receiving block (91) and a slide rail A (92) arranged on the support plate assembly (4); a receiving angle block (94) is connected to the slider of the slide rail A (92) via a receiving plate A (93); one side of the receiving angle block (94) is longitudinally connected to a second support (98) via a second angle block (95); a positioning cylinder (99) is arranged at the lower end of the second support (98) and a receiving plate B (96) is arranged at the upper end; a positioning pin (97) is connected to the piston rod of the positioning cylinder (99); the positioning pin (97) passes through the receiving plate B (96) to position the bushing (12).

4. The welding tool for battery box accessories for new energy vehicles according to claim 1 is characterized in that: The strong pressing assembly (3) comprises a second pressing cylinder (31), a second support block (33), and a support frame (32). The support frame (32) is provided with connecting ear plates on the side and the top respectively. The support frame (32) is connected to the second pressing cylinder (31) via the side connecting ear plates. A second pressing arm (34) is provided on the piston rod of the second pressing cylinder (31). A pressure head assembly (35) is provided at the front end of the second pressing arm (34). A support block (37) and a limit support block (36) are provided on the top of the support frame (32).

5. The welding tool for battery box accessories for new energy vehicles according to claim 4 is characterized in that: The pressure head assembly (35) comprises a second pressure head (351), the front end of the second pressure head (351) is provided with a stepped inner hole, the second pressure head (351) is connected to a pin shaft (352) via a shaft sleeve, the upper end of the pin shaft (352) is a threaded section, and is threadedly connected to a fixing block (353), a limiting portion (354) is provided in the middle of the pin shaft (352), and a spring (355) is sleeved on the lower end of the pin shaft (352), one end of the spring (355) is against the limiting portion (354), and the other end is against the pressure block (356) at the bottom end of the pin shaft (352).

6. The welding tool for battery box accessories for new energy vehicles according to claim 1 is characterized in that: One end of the 7-shaped positioning block (68) is provided with an L-shaped extension portion (681) to wrap around a corner of the mounting seat (111) to limit the front side of the sealing plate (14); the second stop block (69) is provided in an inverted T shape; an L-shaped retaining edge (691) is provided at the upper end of the inverted T shape to limit the upper side of the sealing plate (14); and the lower side of the sealing plate (14) is limited by a Z-shaped support block (614).

7. The welding tool for battery box accessories for new energy vehicles according to claim 1 is characterized in that: The bracket welding tool comprises a bracket side pressure mechanism (7) and a bracket pressing mechanism (8). The bracket side pressure mechanism (7) comprises a second side pressure cylinder (72). The second side pressure cylinder (72) is connected to the support plate assembly (4) through a support (71). The piston rod of the second side pressure cylinder (72) is connected to the transition plate (76) through a joint. The transition plate (76) is connected to the support plate assembly (4) through a slide rail slider (73). A plurality of pressing assemblies (77) are arranged on the transition plate (76). The front end of the pressing assemblies (77) abuts against the inner side surface of the bracket (13). The bracket (13) is arranged on the outer side surface of the battery box (11). A handle (75) is arranged at one end of the transition plate (76). The middle part of the handle (75) is hinged to a fixing seat (74). The fixing seat (74) is arranged on the support plate assembly (4). A second limit block (78) is arranged on the support plate assembly (4) at the rear end of the transition plate (76).

8. The welding tool for battery box accessories for new energy vehicles according to claim 7 is characterized in that: The pressing assembly (77) comprises a third corner block (771), a third connecting block (772) being provided on one side of the third corner block (771), a U-shaped fixing block (773) being provided on one side of the third connecting block (772), an opening being provided at the end of the U-shaped fixing block (773), a pressing block (774) passing through the opening of the U-shaped fixing block (773) and abutting against the bracket (13), a second spring being sleeved on the pressing block (774), one end of the second spring abutting against the inner end surface of the pressing block (774), and the other end abutting against the inner end surface of the U-shaped fixing block (773).

9. The welding tool for battery box accessories for new energy vehicles according to claim 7 is characterized in that: The support clamping mechanism (8) comprises an L-shaped connecting block (82), the L-shaped connecting block (82) being connected to the support plate assembly (4), a clamping cylinder (81) being arranged on one side of the L-shaped connecting block (82), a fourth connecting block (83) being arranged on the piston rod of the clamping cylinder (81), an angle seat (84) being arranged on the fourth connecting block (83), an L seat (85) being arranged on one side of the angle seat (84), a support block (86) being arranged on the outer side of the L seat (85), a bottom edge of the support (13) being arranged on the support block (86) and being limited by a raised portion of the support block (86), and a first stopper (87) being arranged on one side of the support block (86) for limiting the side edge of the support (13).

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