CN110247273B

CN110247273B - Aluminum or copper flexible connection processing method and device based on friction stir welding technology

Info

Publication number: CN110247273B
Application number: CN201910564508.7A
Authority: CN
Inventors: 邓永芳; 张为超; 黄婷; 邱哲睿; 曾金成
Original assignee: Jiangxi College of Applied Technology; Jiangxi University of Science and Technology
Current assignee: Jiangxi College of Applied Technology; Jiangxi University of Science and Technology
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-08-04
Anticipated expiration: 2039-06-27
Also published as: WO2020258616A1; CN110247273A

Abstract

A processing method and a device for aluminum or copper flexible connection based on friction stir welding technology are characterized in that the method comprises the following steps: firstly, conveying a plurality of layers of aluminum foils to a conveying part (1) through a conveying belt, and conveying the adjusted plurality of layers of aluminum foils to a stirring friction connecting part (2) through the conveying belt; secondly, performing friction stir connection on two sides of the multilayer aluminum foil through a friction stir machine on the friction stir connection part (2); thirdly, the multi-layer aluminum foil which is well connected by stirring friction is sent to a bending part (3) by a conveyor belt; fourthly, the bent multilayer aluminum foil is conveyed to a punching and cutting part (4) through a conveyor belt, and a punching and cutting machine on the punching and cutting part (4) punches and cuts the part of the multilayer aluminum foil needing to be punched to obtain aluminum flexible connection; and finally, conveying the punched and cut aluminum flexible connection to a packaging area for detection and packaging. The invention has reliable connection, stable performance and high production efficiency.

Description

Aluminum or copper flexible connection processing method and device based on friction stir welding technology

Technical Field

The invention belongs to the field of machining, in particular to a method for preparing an aluminum connecting belt, and particularly relates to a method and a device for machining aluminum or copper flexible connection.

Background

The aluminum or copper flexible connection is widely applied to industries such as metallurgy, chemical engineering, electric power, new energy automobiles and the like. The existing common aluminum or copper flexible connection processing method is to press the aluminum foil lamination parts together, to split and melt the lamination parts through the heavy-current high-temperature heating of a molecular diffusion welding machine, to form the lamination parts by pressure welding, and then to treat the welding surface.

In order to solve the problems of high cost and low strength of the conventional multi-layer aluminum foil connection method, the invention patent ' a connection method for diffusion welding multi-layer aluminum foils ' (patent application number: 201710222208.1) ' improves the strength of the multi-layer aluminum foils and reduces the cost of subsequent treatment by pretreating plates before connection, but the pretreatment at the early stage still needs a long time and the production efficiency is still not high.

In order to reduce the production cost, simplify the processing flow and improve the processing quality of aluminum flexible connection, the invention provides a copper flexible connection preparation method for a new energy automobile battery module (patent application number: 201810105411.5), which is characterized in that a superposed copper foil is connected and formed between two pure nickel sheets through diffusion welding, and then is bent manually or through a die and is subjected to heat treatment. The method improves the processing quality to a certain extent, but needs to additionally add nickel sheets, still adopts molecular diffusion welding, has low automation level and low production efficiency.

In order to solve the problems of low heating speed and unstable temperature during connection, the invention discloses an aluminum flexible connection welding machine and a welding process (patent application number: 201710822797.7), wherein a graphite table (upper and lower) is adopted for placing a connecting piece, so that uniform heating and accurate temperature control can be realized, the processing quality of aluminum flexible connection is improved, but molecular diffusion welding is still used essentially, and the production efficiency is not improved.

By combining the analysis, the existing aluminum flexible connection processing still has the defects of high plate surface requirement, low yield, low automation level and the like and needs to be further improved.

Disclosure of Invention

The invention aims to provide an aluminum or copper flexible connection processing method based on a friction stir welding technology and simultaneously design a corresponding processing device aiming at the problems of high plate surface requirement, low yield and low automation level in the existing aluminum or copper flexible connection processing.

One of the technical schemes of the invention is as follows:

a processing method of aluminum or copper flexible connection based on friction stir welding technology is characterized in that friction stir welding connection is firstly carried out on two ends of the aluminum or copper flexible connection, so that physical connection of layers of aluminum or copper foils is realized at welding seams, then punching operation is carried out on two ends of the aluminum or copper flexible connection after friction stir welding connection, and subsequent packaging operation is carried out if necessary. During the friction stir connection, the operation can be performed singly, namely, a plurality of layers of aluminum or copper foils are stacked to be processed into a final finished product shape, then the friction stir connection and the punching are performed on two ends, a plurality of whole aluminum or copper foils can be subjected to the friction stir connection on two sides firstly, then the shaping is performed, the punching is performed according to the positions of holes, and finally the friction stir connection can be performed once by utilizing the cutting technology according to the width size of the aluminum or copper flexible connection to obtain a plurality of aluminum or copper flexible connections.

The method specifically comprises the following steps:

firstly, a plurality of layers of aluminum or copper foils are conveyed to a conveying part 1 through a conveyor belt, the plurality of layers of aluminum or copper foils are adjusted to be in centering positions by a guide plate and a centering adjusting small wheel on the conveying part 1, and the adjusted plurality of layers of aluminum or copper foils are conveyed to a friction stir connecting part 2 through the conveyor belt;

secondly, carrying out friction stir connection on two sides of the multilayer aluminum or copper foil through a friction stir machine on the friction stir connection part 2;

thirdly, conveying the multilayer aluminum or copper foil connected by friction stir to a bending part 3 by a conveyor belt, and bending the multilayer aluminum or copper foil connected by friction stir into a required shape by a bending module on the bending part 3 to bend an upper die and a lower die;

fourthly, the bent multilayer aluminum or copper foil is conveyed to a punching and cutting part 4 through a conveyor belt, and a punching and cutting machine on the punching and cutting part 4 punches and cuts the part of the multilayer aluminum or copper foil needing to be punched to obtain aluminum or copper flexible connection;

and finally, conveying the punched and cut flexible aluminum or copper connection to a packaging area for detection and packaging.

The second technical scheme of the invention is as follows:

a processing device for aluminum or copper flexible connection based on friction stir technology is characterized by comprising:

the conveying part 1 comprises a plate placing area, guide plates, linear guide rails, centering adjusting small wheels, a conveying workbench and a conveying belt, the center lines of the plate placing area and the guide plates are the same as the symmetrical center lines of the two linear guide rails, the guide plates are symmetrically distributed on two sides of the plate placing area, the guide plates and the centering adjusting small wheels arranged on the workbench are in contact with the plates, and the guide plates and the centering adjusting small wheels provide reverse acting force for the plates so that the distance between the plates and the centering adjusting small wheels is adjusted; for different processing materials, the conveying part 1 is provided with one or more working tables for length adjustment;

a friction stir connecting portion 2; the friction stir connecting part 2 comprises a linear guide rail, a limiting block, a guide rail sliding block, an upright post, a top beam, a sliding rail, a cross beam, a hydraulic compacting machine, a compacting device, a friction stir connecting machine, a friction stir connecting head, a workbench and a conveyor belt; the stirring head moves to one side firstly, the stirring head moves along the direction of the linear guide rail while stirring and rubbing connection is carried out, the stirring and rubbing connection is carried out while stirring and rubbing connection is carried out, and then the stirring head moves to the other side to carry out stirring and rubbing connection;

a bent portion 3; the bending part 3 comprises a linear guide rail, a limiting block, a guide rail slide block, an upright post, a top beam, a slide rail, a cross beam, a hydraulic clamping machine, a bending workbench, a conveyor belt, a bending module consisting of an upper bending die and a lower bending die and an elevator, wherein during bending, the upper bending die moves downwards from the upper end of the upright post, the lower bending die moves upwards under the workbench, the lower end of the upper bending die contacts with multiple layers of aluminum or copper foil to stop moving, after the lower bending die contacts with multiple layers of aluminum or copper foil, the lower bending die continues to move upwards to extrude the multiple layers of aluminum or copper foil, when the distance between the lower bending die and the upper bending die is the thickness of the multiple layers of aluminum;

a perforating and cutting part 4; the punching and cutting part 4 comprises a linear guide rail, a limiting block, a guide rail sliding block, an upright post, a top beam, a sliding rail, a cross beam, a hydraulic clamping machine, a punching workbench, a conveying belt and a laser punching and cutting machine; when punching, the laser punching cutting machine punches required holes at intervals of 3-200mm according to requirements until the holes on one side are punched, then moves to the other side to punch the required holes at intervals of 3-200mm in the same way, and then performs cutting operation, the laser punching cutting machine advances 5-200mm each time along the direction of the linear guide rail, and cuts the aluminum or copper flexible connection length of 20-200mm along the direction of the top beam.

The width of the guide plate is 2-10mm, the height of the guide plate is 1-40mm, and the guide plate is made of rubber and carbon fiber; the length of the processed plate is 10-2000mm, and the width of the processed plate is 5-500 mm; the centering adjustment small wheel is a horizontal wheel with the diameter of 3-50mm, and the materials are rubber and carbon fiber; the width of the linear guide rail is 20-200mm, and the height of the linear guide rail is 50-250 mm; the width of the workbench is 200-3000mm, and the width is adjusted according to the processing plate.

A plurality of friction stir connecting machines are arranged on the cross beam, and multi-side friction stir connection is carried out simultaneously; or the friction stir connection path is to connect one side back and forth and then connect the other side, and all connection modes are adopted as long as the final realization result is to connect two sides of the multilayer aluminum or copper foil.

The length of a pressure plate of the hydraulic clamping machine is 50-400mm, the width is 30-300mm, and the height is 5-50 mm. The width of the bending workbench is 200-2000mm, the width of the bending module is reserved in the middle of the bending workbench, and the bending part of the bending module corresponds to the bending part of the aluminum or copper flexible connection in size; the bending radius of the bending module is 50-500mm, and the bending angle is 30-180 degrees.

The concave surface of the bending upper die faces downwards, the upper end of the upright post is positioned at the upper end of the upright post when the upright post is not bent, the upper end of the upright post descends at the speed of 0.1-10m/s when the upright post is bent, the convex surface of the bending lower die faces upwards, the upper end of the upright post is positioned below the workbench when the upright post is not bent, and the upper end of the upright post ascends at the speed of 0.1-10m/s when the upright post.

The bending part 3 is provided with a plurality of pairs of bending modules, and a plurality of bending parts can be obtained at one time.

A plurality of laser perforating and cutting machines are arranged on the beam of the perforating and cutting part 4, and perforating and cutting operations on multiple sides are carried out simultaneously; the order of punching and cutting operations may be reversed, or the punching and cutting operations may be performed simultaneously.

When the punching and cutting part 4 punches, 3000r/min of rotating speed is provided for the drill bit, and the drill bit descends and punches at the speed of 0.1-20m/s from the upper part; the punching cutters on two sides punch holes simultaneously or one side punches the holes and the other side punches the holes, and when the aluminum or copper flexible connection is cut, the blade descends from the upper part at the speed of 0.1-20m/s to cut the aluminum or copper flexible connection.

The mounting distance between the drill bits is 3-300mm, and the distance between the two drill bits is adjusted according to the processing requirement; the diameter of the drill bit is 1-200mm, and the drill bit is selected according to different processing requirements; the thickness of the blades is 0.5-3mm, and the installation distance between the two blades is 5-200 mm; the operation sequence of punching and cutting can be reversed, and the punching and cutting can be carried out simultaneously.

The thickness of the processed material is 0.3-100mm, and the processed material can be a multilayer material with equal thickness or a multilayer material with unequal thickness; the processed material not only comprises aluminum, but also comprises copper, steel and other materials; processing the plate with the length of 10-2000mm and the width of 5-500 mm.

The invention has the beneficial effects that:

according to the invention, two sides of a large multi-layer aluminum or copper foil are connected in a stirring friction mode, the large multi-layer aluminum or copper foil is bent through a bending module (an upper bending die and a lower bending die, and the aluminum or copper flexible connection is punched and cut through a punching cutting machine, so that the purpose of obtaining a plurality of aluminum or copper flexible connections through one-time processing is achieved, the processing technology that only one product can be produced in each processing of the conventional aluminum or copper flexible connection is changed, and the process flow diagram is shown in figure 1.

Drawings

FIG. 1 is a flow chart of the aluminum or copper flexible connection processing technology of the invention.

Fig. 2 is a schematic view of an aluminum or copper flexible connection processing apparatus according to the present invention. Fig. 2 a is a schematic view of an aluminum or copper flexible connection processing device adopting laser drilling cutting, and fig. 2b is a schematic view of an aluminum or copper flexible connection processing device adopting mechanical cutting.

Fig. 3 is a schematic view of the structure of the transfer section of the present invention. Fig. 3a is a front view of the transfer section. FIG. 3b is a schematic view of the structure of the guide roller of the conveying part.

FIG. 4 is a schematic view of the friction stir weld connection of the present invention. FIG. 4a is a front view of a friction stir weld connection. FIG. 4b is a schematic view of the running path of the friction stir head.

Fig. 5 is a schematic view of the structure of the bent portion of the present invention.

Fig. 6 is a schematic view of the structure of the punch cutting part of the present invention. FIG. 6a is a schematic diagram of a laser punching and cutting mechanism, FIG. 6b is a schematic diagram of a laser punching and cutting direction, FIG. 6c is a schematic diagram of a laser punching and cutting direction, and FIG. 6d is a schematic diagram of a mechanical punching and cutting device.

Fig. 7 is a schematic view of the final structure of the soft connecting belt of the present invention. FIG. 7 a is a schematic top view of an aluminum or copper flexible connection. Fig. 7b is a schematic structural diagram of an aluminum or copper flexible connection in front view. Fig. 7c is a schematic perspective view of an aluminum or copper flexible connection.

In the figure: 6, multilayer aluminum foils; 7, a plate placing area; 8, a guide plate; 9 linear guide rails; 10 centering and adjusting the small wheel; 11 a working table; 12 a conveyor belt; 13 a limiting block; 14 guide rail slide blocks; 15 upright posts; 16 a top beam; 17 a slide rail; 18 a cross member; 19 hydraulic clamping machine; 20, bending the upper die; bending the lower die 21; 22 an elevator; 23, a compactor; 24 stirring friction connecting machine; 25 stirring friction connecting heads; 26, punching and cutting; 27 laser drilling and cutting machine; 28 drill bit; 29 blades; 30 laser heads.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

The first embodiment.

As shown in fig. 1.

A processing method of aluminum or copper flexible connection based on friction stir technology comprises the following steps:

firstly, the multi-layer aluminum or copper foil is sent to a conveying part 1 (figure 3) through a conveyor belt, the multi-layer aluminum or copper foil is adjusted to a centering position by a guide plate and a centering adjusting small wheel on the conveying part 1, and the adjusted multi-layer aluminum or copper foil is sent to a friction stir welding connecting part 2 (figure 4) through the conveyor belt;

thirdly, the multilayer aluminum or copper foil connected by friction stir is conveyed to a bending part 3 (figure 5) by a conveyor belt, and a bending module on the bending part 3 bends an upper die and a lower die to bend the multilayer aluminum or copper foil connected by friction stir into a required shape;

fourthly, the bent multi-layer aluminum or copper foil is conveyed to a punching and cutting part 4 (figure 6) through a conveyor belt, and a punching cutter on the punching and cutting part 4 punches and cuts the part of the multi-layer aluminum or copper foil needing to be punched to obtain the aluminum flexible connection shown in figure 7;

and finally, conveying the punched and cut aluminum flexible connection to a packaging area for detection and packaging.

Example two.

As shown in fig. 2-7.

In the present embodiment, the aluminum flexible connection is taken as an example for description, and the processing devices for copper flexible connection have the same or similar structure, and only the aluminum foil is changed into the copper foil or the thin copper plate, and the parameters of friction stir are properly adjusted by referring to the relevant manual.

A processing device for aluminum flexible connection based on friction stir technology comprises a conveying part 1, a friction stir connecting part 2, a bending part 3 and a punching and cutting part 4, wherein the punching and cutting part 4 can be realized in two modes.

Wherein: the transfer section 1, as shown in fig. 3, includes a sheet material placing section 7, a guide plate 8, a linear guide 9, a centering adjustment small wheel 10 (fig. 3 b), a table 11, and a conveyor belt 12. The length and width of the plate placing area 7 are slightly larger than those of the multi-layer aluminum foil 6, and the center lines of the workbench 11 and the plate placing area 7 are the same as the symmetrical center lines of the two linear guide rails 9. The guide plates 8 are symmetrically distributed on two sides of the plate placing area 7, the central lines of the two guide plates 8 when placed are the same as the symmetrical central lines of the two guide rails, the distances between the two guide plates 8 when installed are different, the distance between the two guide plates at one end close to the workbench is the same as the width of the multilayer aluminum foil 6, and the distance between the two guide plates at the other end is slightly larger than the width of the multilayer aluminum foil 6. The workbench 11 is arranged between the two linear guide rails 9, and the length of the workbench 11 is greater than that of the multilayer aluminum foil 6. Two conveyor belts 12 are symmetrically arranged at two sides of the workbench 11. The small centering adjustment wheels 10 are symmetrically distributed on two sides of the workbench 11, and one small centering wheel 10 is arranged at intervals. The multilayer aluminum foils 6 on the plate placing area 7 are conveyed to the workbench 11 through the conveyor belt 12, the multilayer aluminum foils 6 are likely to shift during placement, when the multilayer aluminum foils 6 shift, the distance between the multilayer aluminum foils 6 and the guide plate 8 is not 0, the distance between the multilayer aluminum foils 6 and the centering adjusting small wheel 10 is not 0, when the multilayer aluminum foils 6 pass through the guide plate 8 and the centering adjusting small wheel 10, the guide plate 8 and the centering adjusting small wheel 10 provide reverse acting force for the multilayer aluminum foils 6 to enable the multilayer aluminum foils 6 to be adjusted to the centering position, and at the moment, the distance between the multilayer aluminum foils 6 and the centering adjusting small wheel 10 is 0; if the multi-layer aluminum foil 6 is placed without a placement deviation, the multi-layer aluminum foil 6 passes through the guide plate 8 and the centering adjustment small wheel 10 without contact. The conveyor belt 12 continues to move, and the centered multilayer aluminum foil 6 is conveyed to the friction stir welding portion 2.

The friction stir welding part 2 (as shown in fig. 4 a) comprises a linear guide rail 9, a limiting block 13, a guide rail slide block 14, an upright post 15, a top beam 16, a slide rail 17, a cross beam 18, a hydraulic clamping mechanism 19, a pressing device 23, a friction stir welding machine 24, a friction stir welding connector 25, a workbench 11 and a conveyor belt 12. The guide rail sliding block 14 is arranged on the linear guide rail, so that the stirring friction connecting part moves in the direction of the linear guide rail 9, and the limiting blocks 13 are arranged on two sides of the linear guide rail 9 to prevent the guide rail sliding block 14 from sliding out of the stirring friction connecting area. The center line of the workbench 11 is superposed with the center lines of the two linear guide rails 9. The length of the working platform 11 is larger than that of the multi-layer aluminum foil 6. Two conveyor belts 12 are installed at both sides of the table 11. In operation, the conveyor belt 12 conveys the plurality of layers of aluminum foil 6 to a designated position on the table 11. Hydraulic clamping mechanisms 19 (corresponding to hydraulic clamps) are symmetrically installed at both sides of the table 11, one hydraulic clamping mechanism 19 is disposed at intervals, and clamping plates of the hydraulic clamping mechanisms 19 clamp the multiple layers of aluminum foil 6 when the multiple layers of aluminum foil 6 are transferred to the friction stir welding portion 2. Two upright posts 15 are arranged on the guide rail sliding block 14, the two upright posts 15 are connected through a top beam 16, a cross beam 18 moves back and forth on the top beam 16 through a slide rail 17, the slide rail 17 is also arranged on the cross beam 18, and a friction stir connecting machine 24 moves up and down through the slide rail 17 on the cross beam 18. Two rows of compactors 23 are symmetrically mounted on the top beam below the friction stir welding machine 24. Before the friction stir welding, the friction stir welding head 25 is located in the middle of the top beam 16, and the two lateral grippers 23 are located above the table 11. When friction stir welding is performed, the pressing devices 23 on both sides move downwards to press the multilayer aluminum foil 6, the position of the friction stir connecting head 25 is ensured to be on the symmetry center line of the pressing devices 23 and the hydraulic clamping mechanism 19, the friction stir connecting machine 24 on the cross beam 18 is moved to a required position, the position of the friction stir connecting machine 24 on the top beam 16 is fixed, the friction stir connecting machine 24 applies a proper rotating speed to the friction stir connecting head 25, the friction stir connecting head 25 moves downwards until the friction stir connecting head 25 is pressed into the multilayer aluminum foil 6 at a certain distance (the position of the hydraulic clamping mechanism 19 should be avoided, the avoided part can be reserved or cut off at the cutting part, the embodiment is reserved), the friction stir connecting head 25 is kept at the pressed part for several seconds, the guide rail sliding block 14 is moved to drive the friction stir connecting head 25 to move in the direction of the linear guide rail 9, and at this, and (3) until the friction stir connection at one side is finished, moving the friction stir connector 25 upwards to leave the multilayer aluminum foil 6, reducing the rotating speed to 0, moving the friction stir connector 25 to the other side of the multilayer aluminum foil 6, and performing friction stir connection in the same way. When the two-side connection is completed, the friction stir connecting head 25 moves to the middle of the top beam 16, the pressing device 23 moves upwards and returns to the position before the friction stir connection, the clamping plates of the hydraulic clamping mechanism 19 are loosened, and the friction stir connection is completed. The conveyor belt 12 continues to move, and the multilayer aluminum foil 6 which is well stirred and frictionally connected is conveyed to the bending part 3.

The bending part 3 (fig. 5) is composed of a linear guide rail 9, a limiting block 13, a guide rail slide block 14, an upright post 15, a top beam 16, a slide rail 17, a cross beam 18, a hydraulic clamping mechanism 19, a workbench 11, a conveyor belt 12, an upper bending die 20, a lower bending die 21 and a lifter 22. The center line of the workbench 11 is superposed with the center lines of the two linear guide rails 9. For bending the multi-layer aluminum foil 6, a bending width is reserved in the middle of the workbench 11 so that the bending lower die 21 moves upwards, and the length of the workbench 11 is larger than that of the aluminum foil soft belt 6. Two conveyor belts 12 are installed at both sides of the table 11. In operation, the conveyor belt 12 conveys the soft aluminum foil strip 6 connected with the friction stir welding connection part 2 to the bending part 3. The hydraulic clamping mechanisms 19 are symmetrically arranged on two sides of the workbench 11, one hydraulic clamping mechanism 19 is distributed at intervals, and when the conveyer belt conveys the multilayer aluminum foils 6 to the appointed position of the workbench 11, clamping plates of the hydraulic clamping mechanisms 19 clamp the multilayer aluminum foils 6. The linear guide 9 has stop blocks 13 on both sides for spacing from the previous operating position. Two upright posts 15 are arranged on the linear guide rail 9, the two upright posts 15 are connected through a top beam 16, an upper bending die 20 moves up and down on the upright posts 15 through a slide rail 17, and a lower bending die 21 moves up and down through a lifter 22 (similar to a jack). When not bent, the upper bending die 20 is fixed to the upper end of the column 15 by a slide rail, and the lower bending die 21 is moved up and down below the table 11 by a lifter. When the bending upper die 20 and the bending lower die 21 move simultaneously during bending, the bending upper die 20 moves downwards, the bending lower die 21 moves upwards, when the bending upper die 20 and the bending lower die 21 are in contact with the multilayer aluminum foil 6, the bending upper die 20 stops moving, the bending lower die 21 continues to extrude upwards, when the distance between the bending lower die 21 and the bending upper die 20 is the thickness of the multilayer aluminum foil, the bending lower die 21 stops moving at the moment, the multilayer aluminum foil 6 is bent into a required shape, the bending upper die 20 moves upwards and returns to the position when the bending is not performed, the bending lower die 21 moves downwards and returns to the position when the bending is performed, a clamping plate of the hydraulic clamping mechanism 19 is loosened, and the bending is completed. The conveyor belt 12 continues to move, and the bent multi-layer aluminum foil 6 is conveyed to the punching and cutting part 4.

The perforating and cutting part 4 can have two structural forms, and the perforating and cutting part 4 in one form is shown in fig. 6 and comprises a linear guide rail 9, a limiting block 13, a guide rail slide block 14, an upright post 15, a top beam 16, a slide rail 17, a cross beam 18, a hydraulic clamping mechanism 19, a workbench 11, a conveyor belt 12 and a laser perforating and cutting machine 27. The central line of the workbench 11 is superposed with the central lines of the two linear guide rails 9, the two conveyor belts are arranged at two sides of the workbench, and the length of the workbench is greater than that of the aluminum foil belt shown in fig. 7. In operation, the conveyor belt 12 conveys the bent multi-layer aluminum foil 6 to the punching and cutting part 4. The hydraulic clamping mechanisms 19 are symmetrically distributed on both sides of the workbench 11, and one hydraulic clamping mechanism 19 is distributed at intervals. When the bent multilayer aluminum foil 6 reaches a designated working position, the clamping plates of the hydraulic clamping mechanism 19 clamp the multilayer aluminum foil 6. The guide rail sliding block 14 is installed on the linear guide rail 9, the upright column drives the laser drilling cutting machine 27 to move in the direction of the linear guide rail 9, and the limiting blocks 13 are arranged on two sides of the linear guide rail 9 to prevent the sliding block of the linear guide rail 9 from moving out of a drilling and cutting area. Two upright posts 15 are arranged on the guide rail sliding block 14, the two upright posts 15 are connected through a top beam 16, the laser drilling cutter 27 moves back and forth on the top beam 16 through a sliding rail 17, and before drilling, the laser drilling cutter 27 is positioned in the middle of the top beam 16. When punching is carried out, the laser punching cutter 27 is moved to one side to be punched according to the processing requirement, the position of the laser punching cutter 27 on the top beam 16 is fixed, the guide rail slide block 14 is moved, the laser punching cutter 27 is driven to move in the direction of the linear guide rail 9, and holes are punched at intervals according to the requirement. And (3) moving the laser drilling cutter 27 to the other side needing drilling until the drilling is finished on one side, fixing the position of the laser drilling cutter 27 on the top beam 16, moving the guide rail slide block 14 to drive the laser drilling cutter 27 to move in the direction of the linear guide rail 9, drilling holes at intervals according to requirements, finishing drilling after the holes on the two sides are drilled, and continuing to perform cutting treatment. The laser perforating cutter 27 moves to the side to be cut according to the processing requirement, the position of the laser perforating cutter 27 on the top beam 16 is fixed, the guide rail slide block 14 is moved to drive the laser perforating cutter 27 to move in the direction of the linear guide rail 9, move a distance as required, the position of the guide rail sliding block 14 is fixed, the laser perforating cutter 27 cuts the other side from one side on the top beam 16 through the sliding rail 17, at this time, the laser perforating cutter 27 is fixed again, the guide rail sliding block 14 is moved, the laser perforating cutter 27 is driven to move a distance as required in the direction of the linear guide rail 9, the position of the guide rail sliding block 14 is fixed, the laser perforating cutter 27 cuts the other side from one side on the top beam 16 through the sliding rail 17, the cutting operation is repeated until the cutting in the length direction of the aluminum flexible connection is finished, and the laser perforating cutter 27 automatically moves to the middle of the top beam 16. The clamping plate of the hydraulic clamping mechanism 19 is loosened, and the cutting is finished. The conveyor belt 12 continues to move to convey the finished product of the aluminum flexible connection to the packaging area, and the flexible connection is detected and packaged in the packaging area, so that the whole production process of the aluminum flexible connection can be completed.

Another configuration of the hole-punching and cutting part 4 is shown in fig. 6d, and comprises a linear guide 9, a stopper 13, a guide slider 14, a column 15, a top beam 16, a slide rail 17, a cross beam 18, a hydraulic clamping mechanism 19, a table 11, a conveyor belt 12, a punch cutter 26, a drill 28, and a blade 29. The central line of the workbench 11 is superposed with the central lines of the two linear guide rails 9, the two conveyor belts are arranged on two sides of the workbench, and the length of the workbench 11 is larger than that of the multilayer aluminum foil 6. In operation, the conveyer belt 12 conveys the multilayer aluminum foil 6 which is well stirred and friction connected to the appointed position of the workbench 11. The hydraulic clamping mechanisms 19 are symmetrically distributed on both sides of the workbench 11, and one hydraulic clamping mechanism 19 is distributed at intervals. When the bent multilayer aluminum foil 6 reaches a designated working position, the clamping plates of the hydraulic clamping mechanism 19 clamp the multilayer aluminum foil 6. The linear guide 9 has a stopper 13 on both sides, and the linear guide 9 has a stopper 13 on both sides for separating from the previous working position. Two upright posts 15 are arranged on the linear guide rail 9, the two upright posts 15 are connected through a top beam 16, and a punching cutter 26 moves on a cross beam 18 through a slide rail 17. Before the punching operation, the punch cutter 26 is positioned above the beam 18, and when the punch is to be punched, the punch cutter 26 applies an appropriate rotational speed to the drill 28 and moves downward until a desired hole is punched, and the punch cutter 26 moves upward, and the rotational speed is reduced to 0, and returns to the position before the punching operation, thereby completing the punching operation. The cutting process continues with the hole cutter 26 above the header 18 before the cut is made, and as the cut is made, the hole cutter 26 moves downward and cuts the aluminum hosel. After cutting, the punch cutter 26 moves upward and returns to the position before cutting, and the clamping plate of the hydraulic clamping mechanism 19 is loosened, so that cutting is completed. The conveyor belt 12 continues to move to convey the finished product of the aluminum flexible connection to the packaging area, and the flexible connection is detected and packaged in the packaging area, so that the whole production process of the aluminum flexible connection can be completed.

The multi-layered aluminum foil 6 of this example was a multi-layered aluminum foil 1400mm long by 400m wide, 0.1mm thick each, for a total of 30 layers. As shown in fig. 7, the technique requires punching holes at both ends of the aluminum strip, and requires a welding seam parallel to the top edge (both ends) at each punched end to connect the aluminum foils into an electric conductor.

The plate placing area 7 is used for placing a plurality of layers of aluminum foils, and is 1600mm long, 800mm wide and 10mm thick.

The guide plates 8 are symmetrically arranged on the plate placing area, the width of one end of the distance between the two guide plates is slightly larger than that of the multilayer aluminum foil 6, and the width of the other end of the distance between the two guide plates is equal to that of the multilayer aluminum foil 6. The centering adjustment wheel is matched with a centering adjustment small wheel for centering and placing offset multilayer aluminum foils, wherein the height of the aluminum foils is 10mm, and the width of the aluminum foils is 20 mm.

The linear guide rails 9 are symmetrically arranged, the total length is 6300mm, the width is 50mm, and the height is 102mm, so that support is provided for the guide rail sliding blocks. The guide rail sliding block can move in the direction of the linear guide rail.

The small centering adjustment wheel 10 is used for aligning and placing offset multilayer aluminum foils, is symmetrically distributed on two sides of the workbench, and has the diameter of 6mm and the thickness of 2 mm.

The working table 11 is placed between two linear guide rails, and is 1600mm long, 500mm wide and 1000mm high. Providing support for the multi-layer aluminum foil, the conveyor belt and the hydraulic clamp.

The conveyor belt 12 has a width of 100mm and a speed in the range of 0-1.24m/s and is used for conveying a plurality of layers of aluminum foil. And is connected with the hydraulic clamping machine through a sensor.

The limiting blocks 13 are symmetrically distributed on two sides of the linear guide rail and used for separating each working part, wherein the length of each limiting block is 20mm, the width of each limiting block is 30mm, and the height of each limiting block is 45 mm.

The guide rail sliding blocks 14 are symmetrically distributed above the linear guide rail and drive the upright post to move in the direction of the linear guide rail, wherein the length of the guide rail sliding blocks is 40mm, the width of the guide rail sliding blocks is 50mm, and the height of the guide rail sliding blocks is 30 mm.

The upright post 15 is used for supporting the top beam, guide rail sliding blocks are arranged below two sides of the upright post and can drive the top beam to move upwards along the direction of the linear guide rail, sliding rails are symmetrically arranged on two sides of the upright post, and the bending module (bending upper die and bending lower die) and the punching cutting machine move in the direction of the upright post, wherein the length of the upright post is 60mm, the width of the upright post is 30mm, and the height of the upright post is 1000 mm.

The top beam 16 is arranged on two upright posts, and the sliding rails arranged above the top beam are convenient for the cross beam, the friction stir welding machine and the laser drilling cutting machine to move in the direction of the top beam, wherein the length of the top beam is 585mm, the width of the top beam is 55mm, and the height of the top beam is 50 mm.

The slide rails 17 are arranged on the cross beam, the top beam and the upright column to realize that the friction stir welding machine and the laser drilling cutting machine move in the direction of the cross beam or the top beam, and realize that the bending modules (the bending upper die and the bending lower die) and the drilling cutting machine move on the upright column,

the cross beam 18 is mounted to the top beam by slide rails for vertical movement of the friction stir welding machine.

The hydraulic clamping mechanisms 19 are symmetrically distributed at intervals of 120mm at two sides of the linear guide rail, wherein the hydraulic part is arranged below the workbench, a clamping plate of the clamping machine is arranged above the workbench when the clamping machine is not in operation, and the clamping plate clamps the multilayer aluminum foil under the control of a hydraulic system when the clamping machine is in operation, so that the clamping machine is used for fixing the multilayer aluminum foil and is beneficial to friction stir connection, bending, punching and cutting processing.

The bending upper die 20 is designed according to the bending requirement, the bending radius is 170mm, the bending angle is 80 degrees, the concave surface faces downwards, the upper end of the top beam is arranged at the upper end of the top beam when the top beam is not bent, and the speed is reduced at 1m/s when the top beam is bent.

The lower bending die 21 is designed according to the bending requirement, the bending radius is 170mm, the bending angle is 80 degrees, the convex surface is upward, the lower bending die is arranged below the workbench when not bent, and the lower bending die ascends at the speed of 1m/s under the action of the lifter when bending.

The lifters 22 are symmetrically distributed below the bending lower die, one lifter is installed every 300mm along the direction of the linear guide rail, before bending, the lifter is located at an initial position, the lifter is lifted upwards during bending, and after bending is finished, the lifter automatically descends to restore to the initial position.

The pressing device 23 is fixed on the top beam, and automatically drops to press the multiple layers of aluminum foils during friction stir connection, so that friction stir connection is facilitated.

The friction stir connecting machine 24 is used for friction stir connection of the multilayer aluminum foil, is provided with a friction stir connecting head, and provides pressure and rotating speed for the friction stir connecting head during connection.

Friction stir connector 25 is used for friction stir to connect multilayer aluminium foil, and the material adopts h13 steel, and the overall length is 75mm, and the pin stirrer is the round platform form, and the top diameter is 2.8mm, and the top diameter is 3.8mm, and the pin stirrer height is 3 mm.

The drilling and cutting machine 26 is provided with a drill bit and a blade, and the drill bit and the blade can move up and down in the direction of the top beam through a slide rail to drill and cut the aluminum flexible connection.

The laser perforating and cutting machine 27 is mounted on the top beam through a slide rail, and is moved to perforate and cut the multilayer aluminum foil which is well connected by friction stir.

The drill 28, 6mm in diameter and 25mm in length, is mounted on a punch for punching the aluminum connection.

The blade 29 is mounted on a perforating and cutting machine, the mounting distance between the two blades is 40mm, and the effect is to cut the aluminum flexible joint into required sizes.

The laser head 30 is installed on the laser punching cutting machine and used for punching and cutting the aluminum flexible connection.

Example 1.

As shown in fig. 1, the processing flow chart mainly includes the processes of conveying multiple layers of aluminum foils, adjusting the positions of the multiple layers of aluminum foils, connecting the multiple layers of aluminum foils in a friction stir manner, bending the multiple layers of aluminum foils, punching the aluminum flexible connections, cutting the aluminum flexible connections, and the like. Fig. 2 is a schematic view of an aluminum flexible connection processing device. The machining process is described in detail below with reference to the accompanying drawings:

the transfer section 1 shown in fig. 3 first places the multi-layered aluminum foils 6 to be soft-joined in flat superposed pairs on a conveyor belt 12. The conveyor belt 12 moves forward at a speed of 1m/s and conveys the multilayer aluminum foil 6 to the work table 11. The centering adjustment small wheels 10 are symmetrically arranged on two sides of the workbench 11 every 100mm, the multilayer aluminum foils 6 are likely to shift when placed, when the multilayer aluminum foils 6 shift, when the multilayer aluminum foils 6 pass through the guide plate 8 and the centering adjustment small wheels 10, the guide plate 8 and the centering adjustment small wheels 10 provide reverse acting force for the multilayer aluminum foils 6 to adjust the multilayer aluminum foils 6 to a centering position, and at the moment, the distance between the multilayer aluminum foils 6 and the centering adjustment small wheels 10 is 0; if the multiple aluminum foils 6 are placed without a placement deviation, the multiple aluminum foils 6 pass through the centering adjustment small wheel 10 without contact. The conveyor belt 12 continues to run, and the centered multilayer aluminum foil 6 is conveyed to the friction stir welding portion 2.

The centered multi-layer aluminum foil 6 is conveyed to the position of the friction stir welding joint part 2 as shown in fig. 4 by the conveyor belt 12, a signal that the conveyor belt 12 is stopped is transmitted to the hydraulic clamping mechanism 19 by a sensor, and the clamping plates of the two-side hydraulic clamping mechanism 19 move downwards to clamp the multi-layer aluminum foil 6. Before friction stir connection, a friction stir connecting machine 24 is positioned in the middle of a top beam, two rows of pressing devices 23 are arranged above a workbench 11, during friction stir connection, the pressing devices 23 move downwards to press multiple layers of aluminum foils 6 to ensure that a friction stir connection seam is on a symmetrical central line of the pressing devices 23 and a hydraulic pressing machine 19, a cross beam 18 moves to one side of a required position of the top beam 16, the position of a slide rail 17 of the friction stir connecting machine 24 on the top beam 16 is fixed, the friction stir connecting machine 24 on the cross beam 18 is moved to a safe height, a rotating speed of 90r/min is added to the friction stir connecting head, the friction stir connecting head moves downwards until all stirring needles are pressed into the multiple layers of aluminum foils 6, the friction stir connecting head 25 is kept at the pressed position for 3s, a guide rail sliding block 14 is moved to drive the friction stir connecting machine 24 to perform friction stir connection in the guide rail direction at 100mm/min, the friction stir connecting head 25 moves upward away from the multilayer aluminum foil 6, the rotation speed is reduced to 0, and the friction stir connecting head 25 moves to the other side of the multilayer aluminum foil 6 to perform friction stir connection in the same manner. When the connection of the two sides is finished, the friction stir connecting head 25 moves to the middle of the top beam 16, the two rows of pressing devices 23 move upwards and return to the position before the friction stir connection, the clamping plates of the hydraulic clamping mechanism 19 move upwards to release the multiple layers of aluminum foils 6, and the friction stir connection is finished. The conveyor belt 12 continues to move, and the multilayer aluminum foil 6 which is well stirred and frictionally connected is conveyed to the bending part 3.

The multilayer aluminum foil 6 which is well stirred and friction connected is transmitted to a bending part 3 shown in figure 5 by a conveyor belt 12, a signal that the conveyor belt 12 stops is transmitted to a hydraulic clamping mechanism 19 by a sensor, a clamping plate of the hydraulic clamping mechanism 19 moves downwards to clamp the multilayer aluminum foil 6, a bending upper die 20 is arranged above the upright post 15 when the multilayer aluminum foil is not bent, and a bending lower die 21 is arranged below the workbench 11. During bending, the upper bending die 20 slowly descends from the upright post 15 at a speed of 1m/s, the lower bending die 21 ascends from the lower side of the workbench 11 at a speed of 1m/s, when the bottom of the upper bending die 20 contacts with the upper surface of the multilayer aluminum foil 6, the upper bending die 20 stops moving, when the top of the lower bending die 21 contacts with the lower surface of the multilayer aluminum foil 6, the lower bending die 21 continues to move upwards until the distance between the lower bending die 21 and the upper bending die 20 is 3mm, the lower bending die stops moving, and the multilayer aluminum foil 6 is bent and formed. After bending forming, the bending upper die moves upwards at the speed of 1m/s, the bending lower die moves downwards at the speed of 1m/s until the two bending modules move to the initial positions, and a clamping plate of the hydraulic clamping mechanism 19 moves upwards to loosen the multilayer aluminum foil 6. The conveyor belt 12 continues to run, and conveys the bent multi-layer aluminum foil 6 to the punching and cutting part 4.

The folded multi-layer aluminum foil 6 is conveyed by a conveyor belt 12 to the perforation cutting part 4 shown in fig. 6 a. The signal that the conveyor belt 12 is stopped is transmitted to the hydraulic clamping mechanism 19 through the sensor, and the clamping plate of the hydraulic clamping mechanism 19 moves downward to clamp the multiple layers of aluminum foil 6. A laser hole cutter 27 is positioned in the middle of header 16 prior to the perforation. When punching, the laser punching cutting machine 27 on the top beam 16 is moved to one side of a required position, the position of the laser punching cutting machine 27 on the top beam 16 is fixed, the guide rail sliding block 14 is moved, the laser punching cutting machine 27 is driven to move in the direction of the linear guide rail 9, a through hole with the diameter of 6mm is punched at the position 10mm away from the edge of the multilayer aluminum foil 6, a through hole with the diameter of 6mm is punched at the position 20mm of the guide rail as the center of a circle, a through hole with the diameter of 6mm is punched, the guide rail is moved forward by 20mm again, a through hole with the diameter of 6mm is punched at the position as. The laser drilling cutter 27 is moved to the other side of the cap 16 where it is desired to perform drilling in the same manner, and the drilling of the other side is completed and the drilling of both sides is completed. The cutting operation is continued. And moving the laser drilling cutter 27 on the top beam 16 to one side of the required position, fixing the position of the laser drilling cutter 27 on the top beam 16, and moving the guide rail slide block 14 to drive the laser drilling cutter 27 to move in the direction of the linear guide rail 9. Stopping moving at a position 40mm away from the edge of the multi-layer aluminum foil 6, cutting along the direction of the top beam 16 until the other side is cut, stopping cutting, moving the guide rail slide block 14, driving the laser drilling and cutting machine 27 to move 40mm along the direction of the linear guide rail 9, stopping moving, cutting along the direction of the top beam 16 until the other side is cut, stopping cutting, and repeating the cutting steps until the aluminum flexible connection is cut. The laser drill cutter 27 is moved to a position before machining, and the cutting operation is completed. The clamping plate of the hydraulic clamping mechanism 19 moves upwards to loosen the multiple layers of aluminum foil 6, and the cutting is finished. The conveyor belt 12 continues to move to convey the finished product of the aluminum flexible connection to the packaging area, and the flexible connection is detected and packaged in the packaging area to complete the whole production process of the flexible connection.

Example 2.

The multilayer aluminum foil 6 which is well stirred and friction connected is transmitted to a bending part 3 as shown in figure 5 by a conveyor belt 12, a signal that the conveyor belt 12 stops is transmitted to a hydraulic clamping mechanism 19 by a sensor, a clamping plate of the hydraulic clamping mechanism 19 moves downwards to clamp the multilayer aluminum foil 6, an upper bending die 20 is arranged at the upper end of the upright post 15 when the multilayer aluminum foil is not bent, and a lower bending die 21 is arranged below the workbench 11. During bending, the upper bending die 20 slowly descends from the upright post 15 at a speed of 1m/s, the lower bending die 21 ascends from the lower side of the workbench 11 at a speed of 1m/s, when the bottom of the upper bending die 20 contacts with the upper surface of the multilayer aluminum foil 6, the upper bending die 20 stops moving, when the top of the lower bending die 21 contacts with the lower surface of the multilayer aluminum foil 6, the lower bending die 21 continues to move upwards until the distance between the lower bending die 21 and the upper bending die 20 is 3mm, the lower bending die stops moving, and the multilayer aluminum foil 6 is bent and formed. After bending forming, the bending upper die moves upwards at the speed of 1m/s, the bending lower die moves downwards at the speed of 1m/s until the two bending modules move to the initial positions, and a clamping plate of the hydraulic clamping mechanism 19 moves upwards to loosen the multilayer aluminum foil 6. The conveyor belt 12 continues to run, and conveys the bent multi-layer aluminum foil 6 to the punching and cutting part 4.

The bent multi-layer aluminum foil 6 is conveyed to the punching and cutting part 4 shown in fig. 6d by the conveyor belt 12, a signal that the conveyor belt 12 is stopped is sent to the hydraulic clamping mechanism 19 through a sensor, and the clamping plate of the hydraulic clamping mechanism 19 moves downwards to clamp the multi-layer aluminum foil 6. Before the punching is performed, the punch cutter 26 is provided at the upper end of the column 15, and when the punching is performed, the punch cutter 26 moves downward at a speed of 1m/s by applying 3000r/min to the drill 28 to punch a through hole in the multilayer aluminum foil, the punch cutter 26 moves upward, the rotation speed is reduced to 0, and the punch cutter 26 returns to a position before the punching is completed. The cutting operation is continued. When cutting, the punch cutter 26 is lowered from above at a speed of 5m/s, the blade 29 of the punch cutter 26 cuts the aluminum flexible joint to a desired size, the cutting is completed, the punch cutter 26 is moved up, and the punch cutter 26 is returned to a position before punching. The conveyor belt 12 continues to move, the finished product of the aluminum flexible connection is conveyed to a packaging area, and the aluminum flexible connection is detected and packaged in the packaging area, so that the whole production process of the aluminum flexible connection is completed.

Example 3.

The aluminum foil in examples 1 and 2 was changed to copper foil, and the parameters of friction stir were appropriately adjusted to obtain the copper flexible connecting tape of this example.

The present invention is not concerned with parts which are the same as or can be implemented using prior art techniques.

Claims

1. A processing method of aluminum or copper flexible connection based on friction stir welding technology is characterized in that friction stir welding connection is firstly carried out on two ends of the aluminum or copper flexible connection, so that physical connection of layers of aluminum or copper foils is realized at welding seams, and then punching operation is carried out on two ends of the aluminum or copper flexible connection after friction stir welding connection, and the steps are as follows:

firstly, a plurality of layers of aluminum or copper foils are conveyed to a conveying part (1) through a conveyor belt, the plurality of layers of aluminum or copper foils are adjusted to be in a centering position by a guide plate and a centering adjusting small wheel on the conveying part (1), and the adjusted plurality of layers of aluminum or copper foils are conveyed to a friction stir welding part (2) through the conveyor belt;

secondly, carrying out friction stir connection on two sides of the multilayer aluminum or copper foil through a friction stir machine on the friction stir connection part (2);

thirdly, conveying the multilayer aluminum or copper foil connected by friction stir to a bending part (3) by a conveyor belt, and bending the multilayer aluminum or copper foil connected by friction stir into a required shape by a bending module on the bending part (3);

fourthly, the bent multilayer aluminum or copper foil is conveyed to a punching and cutting part (4) through a conveyor belt, and a punching and cutting machine on the punching and cutting part (4) punches and cuts the part of the multilayer aluminum or copper foil needing to be punched to obtain aluminum or copper flexible connection;

2. A processing apparatus according to the processing method of claim 1, comprising:

the conveying part (1) comprises a plate placing area, guide plates, linear guide rails, centering adjusting small wheels, a conveying workbench and a conveying belt, the center lines of the plate placing area and the guide plates are the same as the symmetrical center lines of the two linear guide rails, the guide plates are symmetrically distributed on two sides of the plate placing area, the guide plates and the centering adjusting small wheels arranged on the workbench are in contact with the plates, and the guide plates and the centering adjusting small wheels provide reverse acting force for the plates so that the distance between the plates and the centering adjusting small wheels is adjusted; for different processing materials, the conveying part (1) is provided with one or more working tables for length adjustment;

a friction stir welding joint (2); the friction stir connecting part (2) comprises a linear guide rail, a limiting block, a guide rail slide block, an upright post, a top beam, a slide rail, a cross beam, a hydraulic compactor, a friction stir connecting machine, a friction stir connecting head, a workbench and a conveyor belt; the stirring head moves to one side firstly, the stirring head moves along the direction of the linear guide rail while stirring and rubbing connection is carried out, the stirring and rubbing connection is carried out while stirring and rubbing connection is carried out, and then the stirring head moves to the other side to carry out stirring and rubbing connection;

a bent portion (3); the bending part (3) comprises a linear guide rail, a limiting block, a guide rail sliding block, an upright post, a top beam, a sliding rail, a cross beam, a hydraulic clamping machine, a bending workbench, a conveyor belt, a bending module and an elevator, wherein the bending module consists of an upper bending die and a lower bending die;

a punch cutting portion (4); the punching and cutting part (4) comprises a linear guide rail, a limiting block, a guide rail sliding block, an upright post, a top beam, a sliding rail, a cross beam, a hydraulic clamping machine, a punching workbench, a conveying belt and a laser punching and cutting machine; when punching, the laser punching cutting machine punches required holes at intervals of 3-200mm according to requirements until the holes on one side are punched, then moves to the other side to punch the required holes at intervals of 3-200mm in the same way, and then performs cutting operation, the laser punching cutting machine advances 5-200mm each time along the direction of the linear guide rail, and cuts the aluminum or copper flexible connection length of 20-200mm along the direction of the top beam.

3. The processing device as claimed in claim 2, wherein the guide plate has a width of 2-10mm and a height of 1-40mm, and is made of rubber or carbon fiber; the length of the processed plate is 10-2000mm, and the width of the processed plate is 5-500 mm; the centering adjustment small wheel is a horizontal wheel with the diameter of 3-50mm, and the materials are rubber and carbon fiber; the width of the linear guide rail is 20-200mm, and the height of the linear guide rail is 50-250 mm; the width of the workbench is 200-3000mm, and the width is adjusted according to the processing plate; a plurality of friction stir connecting machines are arranged on the cross beam, and multi-side friction stir connection is carried out simultaneously; or the friction stir connection path is to connect one side back and forth and then connect the other side, and all connection modes are adopted as long as the final realization result is to connect two sides of the multilayer aluminum or copper foil.

4. The processing device as claimed in claim 2, wherein the press plate of the hydraulic clamping machine has a length of 50-400mm, a width of 30-300mm and a height of 5-50 mm; the width of the bending workbench is 200-2000mm, the width of the bending module is reserved in the middle of the bending workbench, and the bending part of the bending module corresponds to the bending part of the aluminum or copper flexible connection in size; the bending radius of the bending module is 50-500mm, and the bending angle is 30-180 degrees.

5. The processing device as claimed in claim 2, wherein the upper bending die has a concave surface facing downward, and is disposed at the upper end of the column when not bent, and is lowered at a speed of 0.1-10m/s when bent, and the lower bending die has a convex surface facing upward, and is disposed below the table when not bent, and is raised at a speed of 0.1-10m/s when bent by the elevator.

6. The processing device according to claim 2, wherein a plurality of pairs of bending modules are mounted on the bending portion (3) so that a plurality of bending portions can be obtained at one time.

7. The processing apparatus according to claim 2, wherein the beam of the punch cutting section (4) is provided with a plurality of laser punch cutters for simultaneously performing the punching and cutting operations on a plurality of sides, or the punching and cutting operations are performed in reverse order, or the laser punch cutters are performed while punching.

8. The processing apparatus according to claim 2, wherein the hole-piercing cutter portion (4) is adapted to provide a rotation speed of 3000r/min to the drill, and the drill is lowered from above at a speed of 0.1 to 20m/s to pierce the hole; the punching cutters on two sides punch holes simultaneously or one side punches the holes and the other side punches the holes, and when the aluminum or copper flexible connection is cut, the blade descends from the upper part at the speed of 0.1-20m/s to cut the aluminum or copper flexible connection.

9. The processing device as claimed in claim 8, wherein the mounting distance between the drills is 3-300mm, and the distance between the two drills is adjusted according to the processing requirements; the diameter of the drill bit is 1-200mm, and the drill bit is selected according to different processing requirements; the thickness of the blades is 0.5-3mm, and the installation distance between the two blades is 5-200 mm; the order of operations of punching and cutting can be reversed, or the cutting can be performed while punching.