Embedded nut type brazed water cooling plate and manufacturing method thereof

Abstract

The invention discloses an embedded nut type brazed water cooling plate and a manufacturing method thereof. The embedded nut type brazed water cooling plate comprises an upper cooling plate, a lower cooling plate and a reinforcing plate which are sequentially connected from top to bottom. The upper cold plate and the lower cold plate are fixedly connected through brazing, a cooling liquid flow channel is formed between the upper cold plate and the lower cold plate, and the lower cold plate and the reinforcing plate are detachably connected. A plurality of concave convex hulls are arranged on the lower cold plate and located at the brazing joint, and hexagonal anti-rotation holes are formed in the bottoms of the convex hulls; a nut in anti-rotation fit with the hexagonal anti-rotation hole is inserted into the hexagonal anti-rotation hole, a blind hole is formed in the outer end of the nut, and a flange plate located on the inner side of the convex hull is arranged at the inner end of the nut; a plurality of through holes in one-to-one correspondence with the blind holes are formed in the reinforcing plate, and bolts in threaded connection with the blind holes are inserted into the through holes; and the plurality of through holes are arranged in a matrix. The bottom reinforcing plate in the embedded nut type brazed water-cooling plate is directly fixed through the bolts, the whole structure of the water-cooling plate is not damaged, and airtightness of a whole battery pack is not affected.

Description

Technical Field

[0001] The present invention relates to the field of electric heat management of new energy battery packs, and in particular to an embedded nut-type brazed water-cooling plate and a manufacturing method thereof. Background Art

[0002] With the rapid development of new energy electric vehicles, various new energy vehicles are emerging in an endless stream, and the types of batteries that are regarded as the lifeblood of new energy vehicles are also increasing. As a result, the requirements for liquid cooling plates of key components in batteries are also getting higher and higher. Therefore, brazed water cooling plates are needed. They adopt a double-layer water cooling plate design with a coolant flow channel in the middle for circulating cold liquid.

[0003] When using this type of water-cooling plate, in order to ensure its structural strength, it is usually necessary to add multiple reinforcement plates at its bottom. The conventional way to connect the reinforcement plates is to use rivet nuts for riveting. After brazing is completed, holes need to be opened in the entire water-cooling plate. Due to the aging characteristics of the glue, there is a risk of leakage in the entire battery pack during long-term use. Summary of the Invention

[0004] The purpose of the present invention is to provide an embedded nut type brazed water-cooling plate and a manufacturing method thereof, wherein the bottom reinforcing plate in the embedded nut type brazed water-cooling plate is directly fixed with bolts. This structure does not destroy the overall structure of the water-cooling plate and has no effect on the airtightness of the entire battery pack.

[0005] In order to achieve the above-mentioned objectives, the present invention provides an embedded nut brazed water-cooled plate, comprising an upper cold plate, a lower cold plate and a reinforcing plate connected in sequence from top to bottom; the upper cold plate and the lower cold plate are fixedly connected by brazing, a coolant flow channel is formed between the two, and the lower cold plate and the reinforcing plate are detachably connected; the lower cold plate is provided with a plurality of concave convex bumps at the brazing connection, and the bottom of the convex bumps is provided with a hexagonal anti-rotation hole; a nut is inserted into the hexagonal anti-rotation hole to cooperate with the nut for anti-rotation, the outer end of the nut is provided with a blind hole, and the inner end is provided with a flange plate located on the inner side of the convex bump; the reinforcing plate is provided with a plurality of through holes corresponding to the blind holes one by one, and the through holes are provided with bolts threadedly connected to the blind holes; the plurality of through holes are arranged in a matrix.

[0006] The present invention also provides a method for assembling a brazed water-cooling plate with an embedded nut, the method comprising the following steps:

[0007] S1, making a lower cold plate with a convex bulge, using a stamping device to stamp and form a convex bulge at the position for mounting a nut on the lower cold plate, and opening a hexagonal anti-rotation hole in the middle of the bulge;

[0008] S2, install the nut by inserting it into each hexagonal anti-rotation hole, and make the flange plate fixed to one end of the nut embedded in the convex bulge;

[0009] S3, placing an upper cold plate on the lower cold plate, keeping the multiple flange plates pressed by the upper cold plate, and then brazing the upper cold plate and the lower cold plate;

[0010] S4, turn over the welded water-cooling plate as a whole, and use multiple bolts screwed into corresponding blind holes to install the reinforcement plate to the lower cold plate;

[0011] S4, install the inlet and outlet faucets.

[0012] Preferably, a nut assembly device is used in step 2; the nut assembly device includes a workbench and a nut arranging and conveying mechanism installed on the workbench and a movable portal frame; the nut arranging and conveying mechanism is used to convey the nuts to the bottom of the movable portal frame and arrange them in a straight line, and a plurality of grabbing mechanisms corresponding to the nuts are provided at the bottom of the movable portal frame; a water-cooled plate placement seat is provided on the workbench.

[0013] Preferably, the nut assembly device includes a three-section guide plate which is sequentially connected to an upper horizontal plate, a middle slope plate and a lower pickup plate; a plurality of guide grooves are arranged on the three-section guide plate, the upper end of the guide groove extends to the inlet end of the upper horizontal plate, and the lower end extends to the lower pickup plate; a stop plate is provided at the outlet end of the lower pickup plate, and a positioning arc corresponding to each guide groove is provided on the side of the stop plate facing the middle slope plate; a first electromagnet is provided on the inner wall of the positioning arc, and a nut feeding unit is provided at the upper port of the guide groove.

[0014] Preferably, the nut feeding unit includes feeding belts arranged on both sides of the guide groove, a gap for inserting nuts is provided between two adjacent feeding belts, and the flange plates are placed on the feeding belts on both sides.

[0015] Preferably, a column corresponding to the upper end position of each guide groove is fixedly connected to the workbench; a U-shaped frame is installed on the column, and a pair of feeding belts are provided in each U-shaped frame, and a belt shaft is installed on both sides of the U-shaped frame; a horizontal first driving motor is also installed on the workbench, and the driving shaft of the first driving motor and the belt shaft are driven by a driving belt; a support frame is also provided on the end of the workbench, and a driven shaft is installed at the end of the support frame, and the other end of the feeding belt is rotatably sleeved on the driven shaft.

[0016] Preferably, the upper end of the U-shaped frame protrudes from the upper surface of the upper horizontal plate, and a portion of the U-shaped frame is inserted into and fits with the upper horizontal plate.

[0017] Preferably, shaft seats are provided on both sides of the middle ramp plate, wherein a first cylinder is installed on one of the shaft seats, and the cylinder shaft of the first cylinder is inserted through the other shaft seat; a plurality of blocking plates perpendicular to the surface of the middle ramp plate are arranged and installed on the side of the cylinder shaft, and the blocking plates are arranged to be able to move to the guide groove or to the external position of the guide groove under the extension and contraction of the cylinder shaft; the side thickness of the blocking plate facing the corresponding guide groove is lower than the thickness of the blocking plate body, and the side of the blocking plate facing the lower picking plate is an inclined wedge surface.

[0018] Preferably, guide slide blocks are provided at both ends of the movable portal frame, and guide rail grooves slidingly matched with the guide slide blocks are provided on the workbench. The bottoms of both ends of the movable portal frame pass through the guide rail grooves and are connected through transverse plates, screw holes are provided on the transverse plates, and screw rods screwed to the screw holes are provided on the bottom surface of the workbench, and a second drive motor is installed on the end of the screw rod.

[0019] Preferably, a vertically movable movable plate is provided inside the movable door frame, the grabbing mechanism is provided at the bottom of the movable plate, the grabbing mechanism includes a plurality of convex columns with grooves at the bottom, and a second electromagnet is provided in the bottom groove body of the convex column; a second cylinder connected to the movable plate is provided at the top of the movable door frame, convex sliding blocks are provided at both ends of the movable plate, and sliding holes that slide with the convex sliding blocks are provided on both sides of the movable door frame.

[0020] According to the above technical solution, the bottom reinforcement plate of the embedded nut brazed water-cooling plate of the present invention is directly fixed with bolts. This structure does not damage the overall structure of the water-cooling plate and has no impact on the airtightness of the entire battery pack. Because the reinforcement plate is fixed with bolts, it can be repeatedly disassembled, installed, and repaired.

[0021] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following detailed description, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is the structural diagram of the embedded nut brazing water cooling plate assembly;

[0024] Figure 2 This is a partial cross-sectional diagram of the embedded nut brazed water cooling plate at the nut;

[0025] Figure 3 This is a partial view of the lower cold plate after the nuts are assembled;

[0026] Figure 4 It is a partial cross-sectional diagram of the brazing connection between the lower cold plate and the upper cold plate;

[0027] Figure 5 This is a schematic diagram of the structure in which a hexagonal anti-rotation hole is provided on the lower cold plate;

[0028] Figure 6 It is a schematic diagram of the overall structure of the nut connecting the flange plate;

[0029] Figure 7 This is the bottom view of the finished product of the embedded nut brazed water cooling plate;

[0030] Figure 8 It is a schematic diagram of the overall structure of the nut assembly device;

[0031] Figure 9 yes Figure 8 Schematic diagram of the local enlarged structure of area A in the middle;

[0032] Figure 10 yes Figure 8 Schematic diagram of the local enlarged structure of area B in the middle;

[0033] Figure 11 yes Figure 8 Schematic diagram of the local enlarged structure of the middle C area;

[0034] Figure 12 1. is a schematic diagram of the overall structure of the nut assembly device from a bottom side perspective;

[0035] Figure 13 yes Figure 12 Schematic diagram of the local enlarged structure of the D area in the middle;

[0036] Figure 14 It is a side structural diagram of the nut assembly device;

[0037] Figure 15 Schematic diagram of the installation structure of the stop plate;

[0038] Figure 16 It is a partial enlarged structural diagram of the stop plate.

[0039] Description of Reference Numerals

[0040] 1-Upper cold plate; 2-Lower cold plate; 3-Bump; 4-Nut; 5-Bolt; 6-Flange plate; 7-Reinforcement plate; 8-Blind hole; 9-Hexagonal anti-rotation hole; 10-Working table; 11-Middle ramp plate; 12-Guide groove; 13-Stop plate; 14-Moving portal frame; 15-Second cylinder; 16-Moveable plate; 17-Slide hole; 18-Water-cooled plate placement seat; 19-Grabbing mechanism; 20-Guide rail groove; 21-Column; 22-First drive motor; 23-support frame; 24-driven shaft; 25-shaft seat; 26-first cylinder; 27-cylinder shaft; 28-blocking plate; 29-lower picking plate; 30-flange plate and nut to be grabbed; 31-U-shaped frame; 32-belt shaft; 33-driving belt; 34-screw; 35-transverse plate; 36-second driving motor; 37-oblique wedge surface; 38-upper horizontal plate; 39-fixed frame; 40-feeding belt; 41-cooling liquid flow channel; 42-through hole. DETAILED DESCRIPTION

[0041] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0042] In the present invention, unless otherwise stated, directional words contained in terms such as "up, down, left, right, front, back, inside, outside" merely represent the orientation of the term in normal usage, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term.

[0043] See also Figure 1-16 The embedded nut brazed water-cooled plate shown includes an upper cold plate 1, a lower cold plate 2 and a reinforcing plate 7 connected in sequence from top to bottom; the upper cold plate 1 and the lower cold plate 2 are fixedly connected by brazing, and a coolant flow channel 41 is formed between the two, and the lower cold plate 2 and the reinforcing plate 7 are detachably connected; a plurality of concave convex bumps 3 are provided on the lower cold plate 2 at the brazing connection, and a hexagonal anti-rotation hole 9 is provided at the bottom of the convex bump 3; a nut 4 is inserted into the hexagonal anti-rotation hole 9 to cooperate with it for anti-rotation, and a blind hole 8 is provided at the outer end of the nut 4, and a flange plate 6 is provided on the inner end of the convex bump 3; a plurality of through holes 42 corresponding to the blind holes 8 are provided on the reinforcing plate 7, and bolts 5 screwed to the blind holes 8 are inserted into the through holes 42; the plurality of through holes 42 are arranged in a matrix.

[0044] Through the implementation of the above technical solution, the bottom reinforcement plate 7 of the embedded nut brazed water-cooling plate is directly fixed with bolts 5. This structure does not damage the overall structure of the water-cooling plate and has no impact on the airtightness of the entire battery pack. Because the reinforcement plate 7 is fixed with bolts 5, it can be repeatedly disassembled, installed, and repaired.

[0045] Specifically, the present invention also provides a method for assembling a brazed water-cooled plate with an embedded nut, the method comprising the following steps:

[0046] S1, making a lower cold plate 2 with a convex bulge 3, using a stamping device to stamp and form the convex bulge 3 at the position for mounting the nut 4 on the lower cold plate 2, and opening a hexagonal anti-rotation hole 9 in the middle of the convex bulge 3;

[0047] S2, install the nut 4, insert the nut 4 into each hexagonal anti-rotation hole 9, and make the flange plate 6 fixed to one end of the nut 4 embedded in the convex bulge 3;

[0048] S3, placing an upper cold plate 1 on the lower cold plate 2, keeping the multiple flange plates 6 pressed by the upper cold plate 1, and then brazing the upper cold plate 1 and the lower cold plate 2;

[0049] S4, turn over the welded water-cooling plate as a whole, and use multiple bolts 5 screwed into the corresponding blind holes 8 to install the reinforcement plate 7 to the lower cold plate 2 for fixation;

[0050] S4, install the inlet and outlet faucets.

[0051] By implementing the above steps, the finished water cooling plate comes with a nut 4, which is anti-rotationally engaged with the hexagonal anti-rotation hole 9, making it easy to install on the locking bolt 5. The stamping depth of the convex bump 3 can be between 1-2 mm, customized according to the thickness of the water cooling plate.

[0052] In this embodiment, in order to increase the assembly speed of the nuts 4 and improve the production efficiency of the water-cooled plate, a nut 4 assembly device is used in step 2; the nut 4 assembly device includes a workbench 10 and a nut 4 arranging and conveying mechanism and a movable portal frame 14 installed on the workbench 10; the nut 4 arranging and conveying mechanism is used to convey the nuts 4 to the bottom of the movable portal frame 14 and arrange them in a straight line, and a plurality of grabbing mechanisms 19 corresponding to the nuts 4 are provided at the bottom of the movable portal frame 14; a water-cooled plate placement seat 18 is provided on the workbench 10. The specific operation method is: the nuts 4 are transported in a row to the grabbing position of the grabbing mechanism 19 through the nut 4 arrangement and transportation mechanism, the lower cold plate 2 that needs to be assembled with nuts 4 is fixed on the placement seat, and the mobile door frame 14 carries the grabbing mechanism 19 to the grabbing position, and at the same time grabs multiple flange plates 6 in a row, and then carries the nuts 4 to the multiple hexagonal anti-rotation holes 9 arranged in rows on the lower cold plate 2, and the nuts 4 are inserted into the corresponding hexagonal anti-rotation holes 9 by moving the grabbing mechanism 19 downward. The same operation is used to fill all the hexagonal anti-rotation holes 9 with nuts 4.

[0053] In this embodiment, the nut 4 assembly device includes a three-section guide plate connected sequentially to an upper horizontal plate 38, a middle ramp plate 11, and a lower pickup plate 29. The three-section guide plate is provided with a plurality of guide slots 12 arranged in an array, the upper ends of the guide slots 12 extending to the inlet end of the upper horizontal plate 38 and the lower ends extending to the lower pickup plate 29. A stop plate 13 is provided at the outlet end of the lower pickup plate 29, and a positioning arc corresponding to each guide slot 12 is provided on the side of the stop plate 13 facing the middle ramp plate 11. A first electromagnet is provided on the inner wall of the positioning arc, and a nut feeding unit is provided at the upper end of the guide slot 12. The three-section guide plate is fixed to the workbench 10 via a fixing bracket 39 provided at the bottom.

[0054] Through the setting of the three-stage guide plate, the nut 4 is first sent to the inlet end of the guide groove 12 by the nut feeding unit. Then, under the push of the nut 4, the nut 4 is gradually pushed onto the middle ramp plate 11, and then slides down to the lower pick-up plate 29, and is stopped by the stop plate 13. In order to ensure the position of the nut 4, the first electromagnet is energized at this time, and the nut 4 is adsorbed within the positioning arc for easy grasping. The nut feeding unit can choose to deliver and stop delivery according to the assembly speed, and the middle ramp plate 11 is used to increase the distance between two adjacent nuts 4 to prevent them from being too close together, resulting in grasping errors. For example, when the previous nut 4 slides down, the nut feeding unit stops delivering. At this time, the next nut 4 is stranded on the upper horizontal plate 38.

[0055] In this embodiment, the nut feeding unit includes feeding belts 40 arranged on both sides of the guide groove 12, and a gap for inserting the nut 4 is provided between two adjacent feeding belts 40, and the flange plate 6 is placed on the feeding belts 40 on both sides.

[0056] Among them, all the feeding belts 40 rotate synchronously with the same linear speed. The gap between the same pair of feeding belts 40 is equivalent to the distance between the two parallel surfaces opposite to the nut 4, so that the nut 4 can always maintain a non-rotating state, which is convenient for later position alignment when installed in the hexagonal anti-rotation hole 9.

[0057] In this embodiment, a column 21 is fixedly connected to the workbench 10, corresponding to the upper end position of each guide groove 12; a U-shaped frame 31 is mounted on the column 21, and a pair of feed belts 40 are disposed in each U-shaped frame 31, with a belt shaft 32 mounted on each side of the U-shaped frame 31; a horizontally mounted first drive motor 22 is also mounted on the workbench 10, and a drive belt 33 is used to transmit power between the drive shaft of the first drive motor 22 and the belt shaft 32; a support frame 23 is also provided at the end of the workbench 10, and a driven shaft 24 is mounted at the end of the support frame 23, and the other end of the feed belt 40 is rotatably sleeved on the driven shaft 24. The rotation of the first drive motor 22 drives the multiple belt shafts 32 to rotate, thereby driving the feed belt 40 to rotate synchronously.

[0058] In this embodiment, the upper end of the U-shaped frame 31 protrudes from the upper surface of the upper horizontal plate 38, and a portion thereof is inserted through the upper horizontal plate 38. This arrangement allows the flange plate 6 to play a certain guiding role when the feed belt 40 transitions to the starting position of the guide groove 12.

[0059] In this embodiment, shaft seats 25 are provided on both sides of the middle ramp plate 11, and a first cylinder 26 is installed on one of the shaft seats 25, and the cylinder shaft 27 of the first cylinder 26 is inserted through the other shaft seat 25; a plurality of stop plates 13 perpendicular to the surface of the middle ramp plate 11 are arranged and installed on the side of the cylinder shaft 27, and the stop plates 13 are configured to be able to move to the guide groove 12 or to the external position of the guide groove 12 under the extension and contraction of the cylinder shaft 27; the side thickness of the stop plate 13 facing the corresponding guide groove 12 is lower than the thickness of the stop plate 13 body, and the side of the stop plate 13 facing the lower picking plate 29 is an inclined wedge surface 37.

[0060] The above-mentioned structure can reduce the number of downtimes of the nut feeding unit and increase the downtime interval. Specifically, the nuts 4 are first continuously fed, and when the nuts 4 reach the blocking plate 28, they are blocked. At least a portion of the subsequent nuts 4 are on the middle ramp plate 11. When a row of nuts 4 needs to be fed, the blocking plate 28 is pushed sideways by the first cylinder 26. After the blocking plate 28 moves sideways, the frontmost nut 4 slides down under the action of gravity, and then the blocking plate 28 returns to its original position, preventing the next nut 4 from sliding down. In order to increase the initial speed of the previous nut 4 sliding down, the side of the blocking plate 28 facing the lower pickup plate 29 is provided with an inclined wedge surface 37. When the blocking plate 28 returns to its original position, the inclined wedge surface 37 applies a thrust to the flange plate 6 on the previous nut 4, reducing the influence of friction on the sliding.

[0061] In this embodiment, guide slides are provided at both ends of the movable portal frame 14, and guide rail grooves 20 are provided on the workbench 10 to slidably engage with the guide slides. The bottoms of both ends of the movable portal frame 14 extend through the guide rail grooves 20 and are connected by a transverse plate 35. The transverse plate 35 is provided with screw holes, and a screw rod 34 is provided on the bottom surface of the workbench 10 to be screwed into the screw holes. A second drive motor 36 is mounted on the end of the screw rod. The rotation of the second drive motor 36, in conjunction with the guide rail grooves 20, drives the movable portal frame 14 to move along the length of the workbench 10 to different nut 4 assembly positions or removal positions.

[0062] In this embodiment, the movable gantry 14 is internally provided with a vertically movable plate 16. The bottom of the movable plate 16 is provided with the gripping mechanism 19, which comprises a plurality of bosses with grooves at their bottoms. A second electromagnet is disposed within the bottom grooves of the bosses. A second cylinder 15, connected to the movable plate 16, is disposed at the top of the movable gantry 14. Both ends of the movable plate 16 are provided with sliders, and both sides of the movable gantry 14 are provided with sliding holes 17 that slidably engage the sliders. To grasp the nut 4, the second electromagnet is activated, and the second cylinder 15 pushes the boss downward, allowing the flange plate 6 to enter the groove and be attracted there. The first electromagnet is then deactivated, and the second cylinder 15 pushes the boss upward. Finally, the movable gantry 14 moves, carrying the nut 4 to the assembly position, where the second cylinder 15 pushes the boss downward for assembly.

[0063] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the scope of protection of the present invention.

[0064] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0065] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A brazed water-cooled plate with embedded nuts, characterized in that: The embedded nut-type brazed water-cooling plate comprises an upper cooling plate (1), a lower cooling plate (2) and a reinforcing plate (7) which are sequentially connected from top to bottom; The upper cold plate (1) and the lower cold plate (2) are fixedly connected by brazing, a coolant flow channel (41) is formed between the two, and the lower cold plate (2) and the reinforcing plate (7) are detachably connected; The lower cold plate (2) is provided with a plurality of concave convex bumps (3) at the brazing connection, and the bottom of the convex bumps (3) is provided with a hexagonal anti-rotation hole (9); A nut (4) is inserted into the hexagonal anti-rotation hole (9) to prevent rotation therewith, a blind hole (8) is provided at the outer end of the nut (4), and a flange plate (6) is provided at the inner end thereof and is located inside the convex bulge (3); The reinforcing plate (7) is provided with a plurality of through holes (42) corresponding one to one with the blind holes (8), and bolts (5) threadedly connected to the blind holes (8) are inserted into the through holes (42); The plurality of through holes (42) are arranged in a matrix.

2. A method for assembling the embedded nut brazing water-cooling plate according to claim 1, characterized in that: The production method comprises the following steps: S1, making a lower cold plate (2) with a convex bulge (3), punching and forming the convex bulge (3) at a position for installing a nut (4) on the lower cold plate (2) by a punching device, and opening a hexagonal anti-rotation hole (9) in the middle of the convex bulge (3); S2, install the nut (4), insert the nut (4) into each hexagonal anti-rotation hole (9) accordingly, and make the flange plate (6) fixed to one end of the nut (4) embedded in the convex bulge (3); S3, an upper cold plate (1) is placed on the lower cold plate (2), the plurality of flange plates (6) are kept pressed by the upper cold plate (1), and then the upper cold plate (1) and the lower cold plate (2) are brazed; S4, turning over the welded water-cooling plate as a whole, and using a plurality of bolts (5) screwed into corresponding blind holes (8) to install the reinforcing plate (7) to the lower cooling plate (2) for fixation; S4, install the inlet and outlet faucets.

3. A manufacturing method according to claim 2, characterized in that: In step 2, a nut (4) assembly device is used; The nut (4) assembly device comprises a tooling platform (10), a nut (4) arrangement and conveying mechanism installed on the tooling platform (10), and a movable door frame (14); The nut (4) arrangement and conveying mechanism is used to convey the nuts (4) to the bottom of the movable portal frame (14) and arrange them in a straight line. The bottom of the movable portal frame (14) is provided with a plurality of grabbing mechanisms (19) corresponding to the nuts (4); A water-cooling plate placement seat (18) is provided on the tooling table (10).

4. A manufacturing method according to claim 3, characterized in that: The nut (4) assembly device comprises a three-section guide plate connected in sequence to an upper horizontal plate (38), a middle slope plate (11) and a lower pick-up plate (29); A plurality of guide grooves (12) are arranged on the three-section guide plate, the upper end of the guide groove (12) extends to the inlet end of the upper horizontal plate (38), and the lower end extends to the lower pickup plate (29); A stop plate (13) is provided at the outlet end of the lower pickup plate (29), and a positioning arc corresponding to each guide groove (12) is provided on the side of the stop plate (13) facing the middle ramp plate (11); A first electromagnet is provided on the inner wall of the positioning arc, and a nut feeding unit is provided at the upper end of the guide groove (12).

5. A manufacturing method according to claim 4, characterized in that: The nut feeding unit includes feeding belts (40) arranged on both sides of the guide groove (12), a gap capable of inserting the nut (4) is provided between two adjacent feeding belts (40), and the flange plate (6) is placed on the feeding belts (40) on both sides.

6. A manufacturing method according to claim 5, characterized in that: A column (21) corresponding to the upper end position of each guide groove (12) is fixedly connected to the tooling table (10); A U-shaped frame (31) is installed on the column (21), a pair of feeding belts (40) are provided in each of the U-shaped frames (31), and a belt shaft (32) is installed on both sides of the U-shaped frame (31); A first drive motor (22) is also installed on the tooling table (10), and a drive belt (33) is used to transmit power between the drive shaft of the first drive motor (22) and the belt shaft (32); A support frame (23) is also provided at the end of the tooling table (10), a driven shaft (24) is installed at the end of the support frame (23), and the other end of the feeding belt (40) is rotatably sleeved on the driven shaft (24).

7. A manufacturing method according to claim 6, characterized in that: The upper end of the U-shaped frame (31) protrudes from the upper surface of the upper horizontal plate (38), and a portion of the U-shaped frame (31) is inserted and matched with the upper horizontal plate (38).

8. A manufacturing method according to claim 4, characterized in that: Axle seats (25) are provided on both sides of the middle ramp plate (11), a first cylinder (26) is installed on one of the axle seats (25), and a cylinder shaft (27) of the first cylinder (26) is inserted through the other axle seat (25); A plurality of baffles (28) perpendicular to the surface of the middle ramp plate (11) are arranged and installed on the side of the cylinder shaft (27), and the baffles (28) are configured to be able to move to the guide groove (12) or to a position outside the guide groove (12) under the extension and contraction of the cylinder shaft (27); The thickness of the side of the blocking plate (28) facing the corresponding guide groove (12) is lower than the thickness of the blocking plate (28) body, and the side of the blocking plate (28) facing the lower pickup plate (29) is an inclined wedge surface (37).

9. A manufacturing method according to claim 3, characterized in that: Guide slide blocks are provided at both ends of the movable door frame (14), and guide rail grooves (20) that are slidably matched with the guide slide blocks are provided on the tooling platform (10). The bottoms of both ends of the movable door frame (14) pass through the guide rail grooves (20) and are connected through a transverse plate (35). The transverse plate (35) is provided with screw holes. A screw rod (34) that is screwed to the screw holes is provided on the bottom surface of the tooling platform (10), and a second drive motor (36) is installed at the end of the screw rod.

10. A manufacturing method according to claim 3, characterized in that: A vertically movable plate (16) is provided inside the movable door frame (14), and the bottom of the movable plate (16) is provided with the grabbing mechanism (19), the grabbing mechanism (19) comprises a plurality of bosses with grooves at the bottom, and a second electromagnet is provided in the bottom groove of the bosses; A second cylinder (15) connected to the movable plate (16) is provided on the top of the movable door frame (14), convex sliders are provided at both ends of the movable plate (16), and sliding holes (17) slidably matched with the convex sliders are provided on both sides of the movable door frame (14).

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