Automatic alignment hot riveting welding machine

Abstract

The invention relates to the field of welding, in particular to an automatic alignment hot riveting welding machine. The technical problems that in the current hot riveting process, a plurality of hot riveting columns need to be clamped into a plurality of open holes of a conducting strip, when the number of the hot riveting columns is large, the conducting strip inclines or is not kept in a horizontal state and is prone to being clamped, the placing efficiency is reduced, and then the hot riveting welding effect and the assembling quality are affected are solved. An automatic alignment hot riveting welding machine comprises a box body. A machine frame is arranged on one side of the box body in a sliding mode, a hot riveting machine head is arranged on the machine frame in a sliding mode, a fixing plate is fixedly installed in the box body, and a driving mechanism is arranged on the box body and the fixing plate. The extrusion slopes on the four fixing frames make contact with the conducting strip to apply pressure, the balls and the sliding blocks are driven to move downwards and compress the supporting springs, the bottom of the conducting strip makes close contact with the containing groove, the conducting strip continues to move downwards after preliminary correction and fixing are completed, a hot riveting column is accurately clamped into a hole, preliminary positioning of the conducting strip is achieved, and stable supporting is provided for subsequent hot riveting; and the hot riveting efficiency and the assembly precision are improved.

Description

Technical Field

[0001] The invention relates to the field of welding, and in particular to an automatic alignment hot riveting welding machine. Background Art

[0002] The conductive sheet is hot-riveted to the battery pack plastic module bracket mainly to ensure electrical connection reliability, structural stability, and precise positioning, while reducing assembly complexity and cost, and improving its durability in high temperature environments, thereby ensuring the performance and service life of the battery pack.

[0003] During the current hot riveting process, since the multiple openings on the conductive sheet need to be precisely inserted into multiple hot rivet studs, and the number of hot rivet studs is large, when the conductive sheet is skewed or fails to remain horizontal, it is easy to get stuck, resulting in a significant reduction in the placement efficiency of the conductive sheet, thereby further reducing the hot riveting welding effect and the overall assembly quality. Summary of the invention

[0004] In order to overcome the shortcomings of the current hot riveting process, multiple openings of the conductive sheet need to be inserted into multiple hot riveting columns. When there are many hot riveting columns, the conductive sheet is skewed or not kept in a horizontal state and is easy to get stuck, resulting in reduced placement efficiency, thereby affecting the hot riveting welding effect and assembly quality. Therefore, it is necessary to provide an automatic alignment hot riveting welding machine that can correct the conductive sheet multiple times and fix the corrected conductive sheet to ensure that the conductive sheet maintains an accurate and horizontal position and moves downward, and is smoothly inserted into the hot riveting columns, thereby improving the efficiency of hot riveting welding of the conductive sheet.

[0005] The technical solution of the present invention is: an automatic alignment hot riveting welding machine, comprising a box body, a frame slidably provided on one side of the box body, a hot riveting head slidably provided on the frame, a fixed plate fixedly installed in the box body, a driving mechanism is provided in the box body and the fixed plate, a conductive sheet is placed on the driving mechanism, the driving mechanism is used to drive the conductive sheet to move, and a fixing mechanism is provided on the box body and the placement frame, the fixing mechanism is used to fix the conductive sheet.

[0006] In one of the embodiments, a slot is opened on the fixing plate, a battery pack plastic module bracket is placed in the slot, six groups of hot rivet columns are arranged on the battery pack plastic module bracket, and the size of the slot is the same as the size of the battery pack plastic module bracket.

[0007] In one of the embodiments, a plurality of openings are formed on the conductive sheet, and the openings on the conductive sheet correspond to the heat rivet columns provided on the battery pack plastic module bracket.

[0008] In one of the embodiments, the driving mechanism includes a guide block, two guide blocks are slidably provided on the fixed plate, a nut is installed between the two guide blocks, a servo motor is installed on one side of the fixed plate, a screw rod is installed on the output shaft of the servo motor, and the other end of the screw rod is rotatably connected to the other side of the fixed plate, a placement rack is slidably provided between the two guide blocks, the placement rack is provided with a long side and a short side, a placement groove is respectively opened on the long side and the short side of the placement rack, and the conductive sheet is placed between the two placement grooves on the placement rack.

[0009] In one embodiment, the fixing mechanism includes a sliding frame, a sliding frame is slidably provided at the bottom of the box body, the sliding frame is slidably connected to the placement frame, an electric push rod is respectively installed at the lower part of the two guide blocks, the telescopic rods of the two electric push rods are connected to the placement frame, four pillars are provided on the sliding frame, and a guide roller is rotatably provided on the four pillars of the sliding frame, four fixed frames are slidably provided on the placement frame, the two fixed frames on the long side of the placement frame are symmetrically arranged, and the two fixed frames on the short side of the placement frame are also symmetrically arranged, and two cross springs are connected between each fixed frame and the placement frame.

[0010] In one embodiment, each fixed frame is provided with a lower inclined surface, an upper inclined surface, an extrusion inclined surface and a vertical surface, the vertical surface is located between the lower inclined surface and the upper inclined surface, the lower inclined surface on each fixed frame is in contact with four guide rollers respectively, and the extrusion inclined surface on each fixed frame is located in the placement frame.

[0011] In one embodiment, a positioning rod is installed at the bottom of the sliding frame, and five proximity switches are evenly spaced at the bottom of the box body. The five proximity switches correspond to six groups of thermal rivet columns on the battery pack plastic module bracket placed in the card slot.

[0012] In one of the embodiments, there is also a guiding mechanism installed on the placement rack for guiding the conductive sheet, the guiding mechanism includes a slider, two sliders are slidingly provided on the long side and the short side of the placement rack respectively, a supporting spring is connected between the lower part of each slider and the placement rack, a ball is embedded in the upper part of each slider, and the four balls are in contact with the bottom of the conductive sheet.

[0013] In one of the embodiments, it also includes a correction mechanism installed on the fixed plate and the guide block for correcting the conductive sheet, the correction mechanism includes a horizontal plate, a horizontal plate is installed between the two guide blocks, a vertical shaft is rotatably provided in the middle of the horizontal plate, a gear is installed on the vertical shaft, a correction frame 1 and a correction frame 2 are respectively slidably provided on the two guide blocks, a driving rack is respectively installed on the correction frame 1 and the correction frame 2, a reset spring is connected between the correction frame 1 and the correction frame 2 and the side close to each other of the two guide blocks, and five fixed racks are evenly installed on the top of the fixed plate.

[0014] The beneficial effects of the present invention are as follows: 1. The four extrusion slopes on the four fixing frames contact and apply pressure to the upper part of the conductive sheet, and the four balls and four sliders are driven by the conductive sheet to move downward along a predetermined path. The four supporting springs are gradually compressed to generate a reaction force, and the bottom of the conductive sheet is finally in close contact with the two placement grooves on the placement frame. The four extrusion slopes on the four fixing frames can be used to preliminarily correct and fix the conductive sheet. After the correction and fixation are completed, the conductive sheet continues to move downward, so that several openings on the conductive sheet can be accurately aligned with and stuck into one of the groups of hot rivet columns on the battery pack plastic module bracket, thereby achieving preliminary positioning of the conductive sheet, providing stable and reliable support for subsequent hot riveting operations, significantly improving the hot riveting efficiency and ensuring the accuracy and reliability of the entire assembly process.

[0015] 2. Perform secondary correction on the conductive sheet through correction frame 1 and correction frame 2, and use four ball bearings to guide the conductive sheet to make it move more smoothly; when the gear is disengaged from the fixed rack, under the action of two reset springs, correction frame 1 and correction frame 2 will reset in the direction away from each other, and at the same time, the two driving racks will drive the gear to rotate in the opposite direction to complete the reset, and then perform accurate secondary correction on the conductive sheet through correction frame 1 and correction frame 2, so that the conductive sheet can be fully adjusted before being fixed, ensuring that its placement is more accurate, providing a stable and reliable foundation for subsequent operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a cross-sectional three-dimensional structural schematic diagram of the present invention.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of some parts of the driving mechanism of the present invention.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the driving mechanism and the fixing mechanism of the present invention.

[0020] Figure 5 It is a schematic diagram of the disassembled three-dimensional structure of some parts of the driving mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of the disassembled three-dimensional structure of some parts of the fixing mechanism of the present invention.

[0022] Figure 7 It is a cross-sectional three-dimensional structural schematic diagram of the driving mechanism and the fixing mechanism of the present invention.

[0023] Figure 8 It is a three-dimensional structural schematic diagram of the placement rack and the guide mechanism of the present invention.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the placement frame, the fixing frame, the transverse spring and the guide roller of the present invention.

[0025] Fig.10 It is a schematic diagram of the three-dimensional structure of the frame and the sliding frame of the present invention.

[0026] Fig.11 It is a schematic diagram of the disassembled three-dimensional structure of the slider, ball bearing and support spring of the present invention.

[0027] Fig.12 It is a three-dimensional structural schematic diagram of the box body, the sliding frame, the positioning rod and the proximity switch of the present invention.

[0028] Fig.13 It is a schematic diagram of the three-dimensional structure of the correction mechanism of the present invention.

[0029] Fig.14 It is a cross-sectional three-dimensional structural schematic diagram of the fixing mechanism and the correction mechanism of the present invention.

[0030] Fig.15 It is a three-dimensional structural schematic diagram of the fixing mechanism and the correcting mechanism of the present invention.

[0031] Fig.16 It is a schematic diagram of the three-dimensional structure of the correction mechanism of the present invention.

[0032] Fig.17 It is a schematic diagram of the disassembled structure of some parts of the correction mechanism of the present invention.

[0033] In the accompanying drawings: 1_box body, 2_frame, 21_hot riveting head, 3_fixed plate, 4_card slot, 5_battery pack plastic module bracket, 51_conductive sheet, 61_guide block, 62_nut, 63_servo motor, 64_screw, 65_placing rack, 71_sliding rack, 72_electric push rod, 73_guide roller, 74_fixed rack, 75_transverse spring, 81_positioning rod, 82_proximity switch, 91_slider, 92_ball, 93_support spring, 101_transverse plate, 102_vertical axis, 103_gear, 1041_correction frame one, 1042_correction frame two, 105_driving rack, 106_reset spring, 107_fixed rack. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0035] Embodiment 1: An automatic positioning hot riveting welding machine, such as Figure 1-Figure 11As shown, it includes a box body 1, a frame 2 is slidably provided on one side of the box body 1, a hot riveting head 21 is slidably provided on the frame 2 through an electric slider, a fixing plate 3 is fixedly installed in the box body 1 by bolts, a driving mechanism is provided on the box body 1 and the fixing plate 3, a conductive sheet 51 is placed on the driving mechanism, and the driving mechanism is used to drive the conductive sheet 51 to move, and a fixing mechanism is provided on the box body 1 and the placement frame 65, and the fixing mechanism is used to fix the conductive sheet 51.

[0036] The fixing plate 3 is provided with a slot 4 in which a battery pack plastic module bracket 5 is placed. The battery pack plastic module bracket 5 is provided with six groups of heat rivet columns. The size of the slot 4 is the same as that of the battery pack plastic module bracket 5 .

[0037] The conductive sheet 51 is provided with a plurality of openings, and the openings on the conductive sheet 51 correspond to the heat riveting columns provided on the battery pack plastic module bracket 5 .

[0038] The driving mechanism includes a guide block 61, two guide blocks 61 are slidably provided on the fixed plate 3, a nut 62 is installed between the two guide blocks 61, a servo motor 63 is installed on one side of the fixed plate 3, a screw rod 64 is installed on the output shaft of the servo motor 63, and the other end of the screw rod 64 is rotatably connected to the other side of the fixed plate 3, and a placement rack 65 is slidably provided between the two guide blocks 61, and the placement rack 65 is provided with a long side and a short side, and a placement groove for placing the conductive sheet 51 is respectively opened on the long side and the short side of the placement rack 65, and the conductive sheet 51 is placed between the two placement grooves on the placement rack 65.

[0039] The fixing mechanism includes a sliding frame 71. A sliding frame 71 is slidingly provided at the bottom of the box body 1. The sliding frame 71 is slidably connected to the placement frame 65. An electric push rod 72 is respectively installed at the lower part of the two guide blocks 61 through bolts. The telescopic rods of the two electric push rods 72 are connected to the placement frame 65. Four pillars are provided on the sliding frame 71. A guide roller 73 is rotatably provided on the four pillars of the sliding frame 71. Four fixing frames 74 for preliminary correction and fixation of the conductive sheet 51 are slidingly provided on the placement frame 65. The two fixing frames 74 on the long side of the placement frame 65 are symmetrically arranged, and the two fixing frames 74 on the short side of the placement frame 65 are also symmetrically arranged. Two transverse springs 75 are connected between each fixing frame 74 and the placement frame 65.

[0040] Each fixed frame 74 is provided with a lower inclined surface, an upper inclined surface, an extrusion inclined surface and a vertical surface, the vertical surface is located between the lower inclined surface and the upper inclined surface, the lower inclined surface on each fixed frame 74 is in contact with four guide rollers 73 respectively, and the extrusion inclined surface on each fixed frame 74 is located in the placement frame 65.

[0041] A positioning rod 81 is installed at the bottom of the sliding frame 71, and five proximity switches 82 are evenly installed at intervals at the bottom of the box body 1. The five proximity switches 82 correspond to the six groups of thermal riveting columns on the battery pack plastic module bracket 5 placed in the card slot 4.

[0042] It also includes a guiding mechanism installed on the placement frame 65 for guiding the conductive sheet 51, the guiding mechanism includes a slider 91, two sliders 91 are slidingly provided on the long side and the short side of the placement frame 65, a supporting spring 93 is connected between the lower part of each slider 91 and the placement frame 65, and a ball 92 is embedded in the upper part of each slider 91, and the four balls 92 are in contact with the bottom of the conductive sheet 51.

[0043] When the conductive sheet 51 needs to be hot-riveted on the battery pack plastic module bracket 5, the operator first places the battery pack plastic module bracket 5 in the card slot 4, and then the operator places the conductive sheet 51 between the two placement slots on the placement rack 65. Then the operator starts the output shaft of the servo motor 63 to rotate, and the output shaft of the servo motor 63 drives the screw rod 64 to rotate, and the screw rod 64 drives the two guide blocks 61 and the placement rack 65 to move away from the servo motor 63. The placement rack 65 drives the conductive sheet 51, the sliding rack 71, the frame 2, the hot riveting head 21, the electric push rod 72, and the guide roller 73. , the fixing frame 74, the transverse spring 75, the positioning rod 81, the slider 91, the ball 92 and the support spring 93 move in a direction away from the servo motor 63. When the positioning rod 81 moves to the top of one of the proximity switches 82, the output shaft of the servo motor 63 stops rotating, and the conductive sheet 51 just moves to the top of one of the groups of hot riveting columns set on the battery pack plastic module bracket 5. The operator controls the telescopic rods of the two electric push rods 72 to extend, and the telescopic rods of the two electric push rods 72 drive the placement frame 65, the conductive sheet 51, the fixing frame 74, the transverse spring 75, the positioning rod 81, the slider 91, the ball 92 and the support spring 93 to move in a direction away from the servo motor 63. When the positioning rod 81 moves to the top of one of the proximity switches 82, the output shaft of the servo motor 63 stops rotating, and the conductive sheet 51 just moves to the top of one of the groups of hot riveting columns set on the battery pack plastic module bracket 5. When the support spring 93 moves downward and the four fixing frames 74 move downward, the four lower inclined surfaces on the four fixing frames 74 contact the four guide rollers 73, and the two fixing frames 74 on the long sides of the placement frame 65 move toward each other, and the two fixing frames 74 on the short sides of the placement frame 65 also move toward each other, and the cross spring 75 is compressed accordingly, and the four extrusion inclined surfaces on the four fixing frames 74 contact and press the upper part of the conductive sheet 51, and the four balls 92 and the four sliders 91 are driven downward through the conductive sheet 51, and the four support springs 93 are compressed accordingly, and the conductive sheet 51 The bottom of the sheet 51 is in close contact with the two placement grooves on the placement frame 65. When the four vertical surfaces on the four fixing frames 74 move to the four guide rollers 73, the four extrusion slopes on the four fixing frames 74 can be used to perform preliminary correction and fixation on the conductive sheet 51. After the conductive sheet 51 fixed by the extrusion slopes on the fixing frames 74 continues to move downward, several openings on the conductive sheet 51 will be inserted into one of the groups of hot riveting columns on the battery pack plastic module bracket 5. Then the operator starts the hot riveting machine, and the conductive sheet 51 can be hot-riveted to the battery pack plastic module bracket 5 by the hot riveting machine.After the hot riveting of the conductive sheet 51 is completed, the operator controls the telescopic rods of the two electric push rods 72 to continue to extend, and the telescopic rods of the two electric push rods 72 drive the placement frame 65, the conductive sheet 51, the fixing frame 74, the transverse spring 75, the slider 91, the ball 92 and the support spring 93 to continue to move downward. When the four fixing frames 74 continue to move downward, the four upper inclined surfaces on the four fixing frames 74 contact the four guide rollers 73. Under the action of the transverse spring 75, the two fixing frames 74 on the long side of the placement frame 65 move away from each other, and the two fixing frames 74 on the short side of the placement frame 65 also move away from each other. The four extrusion inclined surfaces on the four fixing frames 74 no longer press the conductive sheet 51. At the same time, the placement The two placement slots on the rack 65 will separate from the conductive sheet 51, and then the operator starts the output shaft of the servo motor 63 to rotate again, and the output shaft of the servo motor 63 drives the lead screw 64 to rotate again, and the lead screw 64 drives the two guide blocks 61 and the placement rack 65 to move away from the servo motor 63 again, and the placement rack 65 drives the conductive sheet 51, the sliding rack 71, the frame 2, the hot riveting head 21, the electric push rod 72, the guide roller 73, the fixed rack 74, the cross spring 75, the positioning rod 81, the slider 91, the ball 92 and the support spring 93 to move away from the servo motor 63. When the placement rack 65 moves out from under the conductive sheet 51 that has been hot-riveted, the operator then controls the telescopic rods of the two electric push rods 72 The telescopic rods of the two electric push rods 72 drive the placement frame 65, the conductive sheet 51, the fixing frame 74, the transverse spring 75, the slider 91, the ball 92 and the support spring 93 to move upward and reset. When the four fixing frames 74 move upward, the upper inclined surface, the vertical surface and the lower inclined surface on the fixing frame 74 pass through the guide roller 73 in sequence. When the lower inclined surface moves to the guide roller 73, under the action of the transverse spring 75, the two fixing frames 74 on the long side of the placement frame 65 move away from each other and reset. The two fixing frames 74 on the short side of the placement frame 65 also move away from each other and reset. Then the operator puts a new conductive sheet 51 between the two placement slots on the placement frame 65. Then, the operator starts the servo The output shaft of the motor 63 rotates again, and the output shaft of the servo motor 63 drives the screw rod 64 to rotate again, and the screw rod 64 drives the two guide blocks 61 and the placement rack 65 to move away from the servo motor 63 again, and the placement rack 65 drives the conductive sheet 51, the sliding rack 71, the frame 2, the hot riveting machine head 21, the electric push rod 72, the guide roller 73, the fixed rack 74, the transverse spring 75, the positioning rod 81, the slider 91, the ball 92 and the support spring 93 to move away from the servo motor 63. When the positioning rod 81 moves to the top of another proximity switch 82, the output shaft of the servo motor 63 stops rotating, and the new conductive sheet 51 just moves to the top of another group of hot riveting columns set on the battery pack plastic module bracket 5;In this way, the six groups of hot riveting columns on the battery pack plastic module bracket 5 can be hot riveted to the conductive sheet 51 one by one. After the hot riveting of the conductive sheet 51 is completed, the operator starts the output shaft of the servo motor 63 to rotate in the opposite direction. The output shaft of the servo motor 63 drives the screw rod 64 to rotate in the opposite direction. The screw rod 64 drives the two guide blocks 61 and the placement rack 65 to move in the direction close to the servo motor 63 and reset and stop. The placement rack 65 drives the conductive sheet 51, the sliding rack 71, the frame 2, the hot riveting head 21, the electric push rod 72, the guide roller 73, the fixed rack 74, the transverse spring 75, the positioning rod 81, the slider 91, the ball 92 and the support spring 93 to move in the direction close to the servo motor 63 and reset and stop. The positioning rod 81 passes over the top of the five proximity switches 82 in sequence. ;

[0044] Embodiment 2: Based on embodiment 1, Figure 9-Figure 17 As shown, it also includes a correction mechanism installed on the fixed plate 3 and the guide block 61 for correcting the conductive sheet 51, the correction mechanism includes a horizontal plate 101, a horizontal plate 101 is installed between the two guide blocks 61, a vertical shaft 102 is rotatably provided in the middle of the horizontal plate 101 through a bearing, a gear 103 is installed on the vertical shaft 102, and a correction frame 1 1041 and a correction frame 2 1042 are respectively slidably provided on the two guide blocks 61, the correction frame 1 1041 and the correction frame 2 1042 will slide horizontally along the two guide blocks 61, and a driving rack 105 is respectively installed on the correction frame 1 1041 and the correction frame 2 1042, and a reset spring 106 is connected between the correction frame 1 1041 and the correction frame 2 1042 and the sides of the two guide blocks 61 that are close to each other, and five fixed racks 107 are evenly spaced and installed on the top of the fixed plate 3.

[0045] After the conductive sheet 51 is placed in the two placement grooves on the placement frame 65, the conductive sheet 51 is located between the correction frame 1 1041 and the correction frame 2 1042, and the guide block 61 drives the placement frame 65, the conductive sheet 51, the horizontal plate 101, the vertical shaft 102, the gear 103, the correction frame 1 1041, the correction frame 2 1042, the drive rack 105 and the reset spring 106 to move. When the gear 103 is engaged with one of the fixed racks 107, the gear 103 will rotate, and the rotation of the gear 103 drives the two drive racks 105 to move in a direction close to each other. The two drive racks 105 drive the correction frame 1 1041 and the correction frame 2 1042 to move in a direction close to each other, and the two reset springs 106 are stretched accordingly. Correction frame 1 1041 and correction frame 2 1042 can perform secondary correction on the conductive sheet 51, and four balls 92 guide the conductive sheet 51 so that the conductive sheet 51 can move more smoothly. When the gear 103 is disengaged from the fixed rack 107, under the action of two reset springs 106, correction frame 1 1041 and correction frame 2 1042 will move away from each other, and the two driving racks 105 will drive the gear 103 to rotate in the opposite direction and reset, and then correction frame 1 1041 and correction frame 2 1042 will perform accurate secondary correction on the conductive sheet 51, so that the conductive sheet 51 can be fully adjusted before being fixed, thereby ensuring that its placement is more accurate, laying a good foundation for subsequent operations.

[0046] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. An automatic positioning hot riveting welding machine, characterized in that: The invention comprises a box body (1), a frame (2) is slidably provided on one side of the box body (1), a hot riveting machine head (21) is slidably provided on the frame (2), a fixing plate (3) is fixedly installed in the box body (1), a driving mechanism is provided on the box body (1) and the fixing plate (3), a conductive sheet (51) is placed on the driving mechanism, and the driving mechanism is used to drive the conductive sheet (51) to move, and a fixing mechanism is provided on the box body (1) and the placement frame (65), and the fixing mechanism is used to fix the conductive sheet (51).

2. The automatic alignment hot riveting welding machine according to claim 1, characterized in that: A slot (4) is formed on the fixing plate (3), a battery pack plastic module bracket (5) is placed in the slot (4), six groups of heat rivet columns are arranged on the battery pack plastic module bracket (5), and the size of the slot (4) is the same as the size of the battery pack plastic module bracket (5).

3. The automatic alignment hot riveting welding machine according to claim 2, characterized in that: The conductive sheet (51) is provided with a plurality of openings, and the openings on the conductive sheet (51) correspond to the heat riveting columns provided on the battery pack plastic module bracket (5).

4. The automatic alignment hot riveting welding machine according to claim 2, characterized in that: The driving mechanism comprises a guide block (61), two guide blocks (61) are slidably provided on the fixed plate (3), a nut (62) is installed between the two guide blocks (61), a servo motor (63) is installed on one side of the fixed plate (3), a screw rod (64) is installed on the output shaft of the servo motor (63), the other end of the screw rod (64) is rotatably connected to the other side of the fixed plate (3), a placement rack (65) is slidably provided between the two guide blocks (61), a long side and a short side are provided on the placement rack (65), a placement slot is respectively opened on the long side and the short side of the placement rack (65), and the conductive sheet (51) is placed between the two placement slots on the placement rack (65).

5. The automatic alignment hot riveting welding machine according to claim 4, characterized in that: The fixing mechanism comprises a sliding frame (71), a sliding frame (71) is slidingly provided at the bottom of the box body (1), the sliding frame (71) is slidably connected to the placement frame (65), an electric push rod (72) is respectively installed at the lower part of the two guide blocks (61), the telescopic rods of the two electric push rods (72) are connected to the placement frame (65), four pillars are arranged on the sliding frame (71), a guide roller (73) is rotatably provided on the four pillars of the sliding frame (71), four fixed frames (74) are slidingly provided on the placement frame (65), two fixed frames (74) on the long side of the placement frame (65) are symmetrically arranged, and two fixed frames (74) on the short side of the placement frame (65) are also symmetrically arranged, and two transverse springs (75) are connected between each fixed frame (74) and the placement frame (65).

6. The automatic alignment hot riveting welding machine according to claim 5, characterized in that: Each fixed frame (74) is provided with a lower inclined surface, an upper inclined surface, an extrusion inclined surface and a vertical surface, the vertical surface is located between the lower inclined surface and the upper inclined surface, the lower inclined surface on each fixed frame (74) is in contact with four guide rollers (73) respectively, and the extrusion inclined surface on each fixed frame (74) is located in the placement frame (65).

7. The automatic alignment hot riveting welding machine according to claim 5, characterized in that: A positioning rod (81) is installed at the bottom of the sliding frame (71), and five proximity switches (82) are evenly spaced and installed at the bottom of the box body (1). The five proximity switches (82) correspond to six groups of heat riveting columns on the battery pack plastic module bracket (5) placed in the card slot (4).

8. The automatic alignment hot riveting welding machine according to claim 7, characterized in that: It also includes a guiding mechanism installed on the placement frame (65) for guiding the conductive sheet (51), the guiding mechanism including a slider (91), two sliders (91) are slidably arranged on the long side and the short side of the placement frame (65), a supporting spring (93) is connected between the lower part of each slider (91) and the placement frame (65), and a ball (92) is embedded in the upper part of each slider (91), and the four ball bearings (92) are in contact with the bottom of the conductive sheet (51).

9. The automatic alignment hot riveting welding machine according to claim 8, characterized in that: The invention also comprises a correction mechanism installed on the fixed plate (3) and the guide block (61) for correcting the conductive sheet (51), the correction mechanism comprising a horizontal plate (101), a horizontal plate (101) installed between the two guide blocks (61), a vertical shaft (102) rotatably provided in the middle of the horizontal plate (101), a gear (103) installed on the vertical shaft (102), a correction frame 1 (1041) and a correction frame 2 (1042) respectively slidably provided on the two guide blocks (61), a driving rack (105) is respectively installed on the correction frame 1 (1041) and the correction frame 2 (1042), a reset spring (106) is respectively connected between the correction frame 1 (1041) and the correction frame 2 (1042) and the sides of the two guide blocks (61) close to each other, and five fixed racks (107) are evenly spaced and installed on the top of the fixed plate (3).

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