CN109014582B - Ultrasonic-assisted laser brazing device for dissimilar metal assembly parts - Google Patents

Abstract

The invention provides an ultrasonic-assisted laser brazing device for dissimilar metal assembly parts, which comprises an A metal upright post feeding assembly, a B metal base feeding assembly, a laser-MIG composite welding assembly, a dissimilar metal assembly part blanking assembly, a cam divider assembly and a rack, wherein the A metal upright post feeding assembly is connected with the B metal base feeding assembly through a laser-MIG composite welding assembly; the cam divider assembly comprises a positioning die assembly, a workbench, a multi-channel pneumatic rotary joint, a cam divider, a synchronous wheel assembly and a speed reduction motor, wherein the multi-channel pneumatic rotary joint is arranged at the central position of the workbench; the cam divider is arranged at the center below the workbench; the speed reduction motor drives the cam divider through the synchronous wheel assembly, and then drives the workbench to rotate. According to the invention, through ingenious and reasonable laser welding structural design, three composite energy fields of a high-frequency induction heat source, laser-MIG composite welding and ultrasonic vibration are integrated in a compact space, the automation degree is high, and the processing efficiency and the welding quality are simultaneously considered.

Description

Ultrasonic-assisted laser brazing device for dissimilar metal assembly parts

The application is a divisional application with the application number of 201710563306.1, the application date of 2017-07-11 and the name of 'a method and a device for ultrasonic-assisted laser brazing of dissimilar metal assemblies'.

Technical Field

The invention belongs to the field of laser welding, and particularly relates to an ultrasonic-assisted laser brazing method and device for dissimilar metal assemblies.

Background

The welding of dissimilar metal materials is an effective way to solve the problem that components meet the requirements of multiple performances at the same time. There are various welding methods such as argon arc welding, resistance welding, friction welding, electron beam welding, laser welding, and the like. Compared with other welding methods, laser welding has the characteristics of concentrated heat source density, large depth-to-width ratio of welding seams, small heat affected zone, good controllability and the like, and compared with electron beam welding, the laser welding has low requirement on laser welding atmosphere and does not need a vacuum environment generally.

However, compared with the conventional welding methods such as arc welding and the like, the laser welding has the defects of narrow welding line and large penetration depth, so that the requirement on welding clamping precision is high. Especially, for the assembly parts, how to obtain better welding quality and welding efficiency through reasonable laser welding structure design and process design aiming at the laser welding characteristics is always a technical problem in the welding field.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an ultrasonic-assisted laser brazing device for dissimilar metal assemblies.

The invention is realized by the following technical scheme:

the invention provides an ultrasonic-assisted laser brazing device for dissimilar metal assembly parts, which comprises an A metal upright post feeding assembly, a B metal base feeding assembly, a laser-MIG composite welding assembly, a dissimilar metal assembly part blanking assembly, a cam divider assembly and a rack, wherein the A metal upright post feeding assembly is connected with the B metal base feeding assembly through a laser-MIG composite welding assembly;

the cam divider assembly comprises a positioning die assembly, a workbench, a multi-channel pneumatic rotary joint, a cam divider, a synchronous wheel assembly and a speed reduction motor, wherein the workbench is circular, and four groups of positioning die assemblies are uniformly arranged on the upper surface of the workbench along the circumferential direction; the multi-channel pneumatic rotary joint is arranged at the center of the workbench; the cam divider is arranged at the center below the workbench; the synchronous wheel assembly comprises a driving synchronous wheel, a driven synchronous wheel and a synchronous belt, wherein the driven synchronous wheel is arranged on a rotating shaft of the cam divider;

the positioning die assembly comprises a limiting fixed stepped shaft, a high-frequency induction heating assembly, a positioning die, an A metal stand column pressing block assembly and an ultrasonic probe device;

the positioning mould is provided with an upright post positioning groove matched with the metal upright post structure A; the three limiting fixed stepped shafts are all arranged on the upper surface of the positioning die, the positions of the three limiting fixed stepped shafts are matched with the positions of the three positioning through holes on the metal base B, and the three limiting fixed stepped shafts are used for being inserted into the three positioning through holes on the metal base B during welding; the ultrasonic probe device is fixedly arranged in the middle of the bottom of the positioning die;

two groups of high-frequency induction heating assemblies are symmetrically arranged on two sides of the upright post positioning groove on the positioning die; the high-frequency induction heating assembly specifically comprises a third compact cylinder, a second L-shaped cylinder mounting plate, a high-frequency induction heating wire mounting plate and a high-frequency induction heating wire, the third compact cylinder is mounted on the upper surface of the positioning die through the second L-shaped cylinder mounting plate, the high-frequency induction heating wire mounting plate and the tail end of a piston rod of the third compact cylinder are mounted in a matched mode through a threaded hole, and the high-frequency induction heating wire is mounted on the high-frequency induction heating wire mounting plate in a positioning mode;

the A metal upright post pressing block assembly is arranged on the side surface of the positioning die and used for pressing the plane end of the A metal upright post; the metal upright post pressing block component A specifically comprises a fourth compact cylinder, a third L-shaped cylinder mounting plate, a spring and a v-21274, wherein the fourth compact cylinder is mounted on the upper surface of a workbench through the third L-shaped cylinder mounting plate, the v-21274is mounted on a piston rod of the fourth compact cylinder through a threaded hole in a matched mode, and the spring is mounted at the tail end of the piston rod of the fourth compact cylinder in a coaxial matched mode; the distance between two arms of the v-shaped pressing block is matched with the thickness of the metal upright post A, when a piston rod of the fourth compact cylinder extends out, the v-shaped pressing block approaches to the metal upright post A until the metal upright post A is inserted into the v-shaped pressing block 21274, the v-shaped pressing block is abutted against a spring, and the pressing of the metal upright post A is realized;

the A metal upright column feeding assembly comprises a vibration disc, a feeding straight plate, a positioning plate, a guide rod, a straight vibration device, a section frame, an A metal upright column moving assembly, an air claw assembly and an X-direction moving assembly, wherein the vibration disc, the feeding straight plate and the A metal upright column moving assembly form an output unit of the A metal upright column; four guide rods are arranged on the bottom surface of the positioning plate, and the positioning plate is supported and arranged above the feeding straight plate; the X-direction moving assembly is arranged on the positioning plate;

the X-direction moving assembly comprises an X-direction cylinder, an X-direction positioning plate, linear bearings, an X-direction optical axis and an X-direction moving plate, wherein the X-direction positioning plate is fixedly arranged on the positioning plate, the X-direction cylinder and a central through hole of the X-direction positioning plate are coaxially matched and arranged, one end of a piston rod of the X-direction cylinder is connected with the X-direction moving plate, the two linear bearings are symmetrically and fixedly arranged on two sides of the X-direction positioning plate, the two X-direction optical axes are respectively coaxially arranged with the two linear bearings, the tail end of the X-direction optical axis is arranged at a threaded hole corresponding to the X-direction moving plate, and the X-direction moving;

the pneumatic claw assembly comprises a T-shaped plate, a first adapter, a second adapter, a first belt rod cylinder, a pneumatic claw and a pneumatic claw finger; the T-shaped plate and the X-direction moving plate are installed in a matched mode through holes, the first transfer piece is L-shaped, one side of the first transfer piece is installed on the T-shaped plate, the first belt rod cylinder is installed on the other side of the first transfer piece, the second transfer piece is also L-shaped, one side of the second transfer piece is installed on the end face of a piston rod of the first belt rod cylinder, the other side of the second transfer piece is provided with a pair of air claws, and air claw fingers are installed on the air;

the A metal upright post material moving assembly comprises a first compact cylinder, a first cylinder fixing plate, a material moving block, a material moving chute plate, a material baffle plate, a material moving spring and a limiting screw; the first compact cylinder is coaxially matched and mounted with a through hole of a first cylinder fixing plate, one side of the material moving block is a plane, the other side of the material moving block is conformal to the side profile of the metal upright post A and is mounted at the tail end of a piston rod of the first compact cylinder through a threaded hole, the material baffle plate, the material moving spring and the limiting screw form a buffering and pressing device, one side of the material moving spring is fixed on the material baffle plate, and the other side of the material moving spring is coaxially matched and mounted with the limiting screw; when the metal upright post A is output into the material moving chute plate through the feeding straight plate, the material moving block moves the metal upright post A to one side close to the limiting screw under the driving of the first compact cylinder to prepare for the grabbing of the air claw fingers;

the B metal base feeding assembly comprises three groups of material storage assemblies, three groups of limiting plates, a rotary workbench, an electric control rotary table support, a lifting module assembly, a B metal base material moving assembly and a pre-pressing assembly, wherein the three groups of material storage assemblies and the three groups of limiting plates are uniformly arranged in the circumferential direction of the rotary workbench;

the storage assembly comprises three limiting rods, guide pillars, elbow clamps, lifting plates, a storage bottom plate and handles, the limiting rods are mounted on the storage bottom plate in a matched mode through threaded holes, a metal base B penetrates through the limiting rods through three positioning through holes in the surface of the metal base B and is stacked in a group of a plurality of limiting rods, the lifting plates are arranged below the metal base B, four top corners of each lifting plate are inwards concave rounded corners and are coaxially matched with the four guide pillars respectively, the two groups of elbow clamps are symmetrically arranged on two sides of the storage bottom plate and are centered and used for pressing and fixing the storage bottom plate, and the two groups of handles are symmetrically arranged at the front position and the rear position;

the lifting module assembly comprises a driven synchronous wheel rotating shaft assembly, a supporting plate, a driven synchronous wheel, a synchronous belt, a limit switch, a lifting slide block assembly, a reinforcing rib, a servo motor, a driving synchronous wheel and a guide rail; the supporting plate and the reinforcing ribs form an integral mounting structure of the lifting module assembly, the reinforcing ribs are a pair and are symmetrically arranged at the bottom of the rear part of the supporting plate, the servo motor is also arranged at the bottom of the rear part of the supporting plate and is positioned between the pair of reinforcing ribs, a rotating shaft of the servo motor is coaxially matched with the driving synchronous wheel, the synchronous belt and the driven synchronous wheel form a belt transmission structure, the driven synchronous wheel is arranged above the supporting plate and is coaxially matched with a driven synchronous wheel rotating shaft assembly, and the limit switches are a pair and are arranged on the same side surface of the supporting plate and used for limiting the upper limit position and the lower;

the lifting slide block assembly comprises a convex adapter, a guide rail slide block, a synchronous belt tooth-shaped clamping plate, a blocking piece, a right-angle plate and a top block; the lifting slide block assembly is arranged on the guide rail through a guide rail slide block, the front end and the side surface of the guide rail slide block are respectively and fixedly provided with a convex adapter and a synchronous belt tooth-shaped clamping plate through thread matching, and the synchronous belt penetrates through the synchronous belt tooth-shaped clamping plate and is compressed and fixed through tooth-shaped matching and a nut; one surface of the right-angle plate is fixedly arranged on the convex adapter, the other surface of the right-angle plate is provided with a top block, and the baffle plate is arranged on the side surface of the right-angle plate in an N shape;

the metal base material moving assembly B comprises a first electric module, a third adapter, a material loading vacuum sucker assembly, a first T-shaped profile frame and a first corner seat, the first electric module is installed on the first T-shaped profile frame, the material loading vacuum sucker assembly is installed on a first electric module lead screw nut seat through the third adapter, and the material loading vacuum sucker assembly realizes linear reciprocating motion under the driving of the first electric module;

the feeding vacuum sucker assembly comprises a fourth adaptor, a second cylinder with a rod, vacuum suckers and positioning disks, wherein the fourth adaptor is L-shaped, one surface of the fourth adaptor is installed on the third adaptor, the other surface of the fourth adaptor is provided with the second cylinder with the rod, the positioning disks are arranged below the end surface of a piston rod of the second cylinder with the rod and are matched through holes to realize installation and positioning, and the number of the vacuum suckers is three, and the three vacuum suckers are coaxially matched with three positioning holes of the positioning disks;

the pre-pressing assembly comprises an L-shaped section bar frame, a second angle seat, a first stroke cylinder, an L-shaped mounting plate, a columnar clamping piece, a positioning clamping block, a sliding rail assembly, a second cylinder fixing plate, a riveting cylinder and a pressing block; the second corner seat is arranged at the right angle of the L-shaped section frame, the L-shaped mounting plate is mounted at one end of the L-shaped section frame through a positioning hole, the first stroke air cylinder is coaxially matched and mounted with a through hole formed in the L-shaped section frame, a piston rod of the first stroke air cylinder is matched and mounted with the columnar clamping piece in a threaded manner, a positioning clamping block is T-shaped, one end of the positioning clamping block is provided with a circular groove and is coaxially clearance-matched and mounted with the columnar clamping piece, the sliding rail assemblies are a pair of sliding rail assemblies and are symmetrically mounted at two sides of a U-shaped through groove of the L-shaped mounting plate, the upper surface of a fixing plate of the second air cylinder is connected with a sliding block of the sliding rail assembly, the lower surface of the fixing plate of the second air cylinder is provided with a riveting air cylinder, a pressing block is U-;

the laser-MIG composite welding assembly comprises a six-axis robot, a wire feeder support, a wire feeder, a composite welding head support, a laser welding head and an MIG welding head, wherein the wire feeder is mounted on the six-axis robot through the wire feeder support;

the blanking assembly of the dissimilar metal assembly part comprises a second electric module, a blanking vacuum sucker assembly, a third corner seat, a second T-shaped section bar frame, a conveying belt and a blanking sliding groove, wherein the second electric module is fixed on the second T-shaped section bar frame, the blanking vacuum sucker assembly is installed on a lead screw nut seat of the second electric module, the conveying belt is located behind the second electric module, and the tail end of the conveying belt is provided with the blanking sliding groove.

The invention has the following beneficial effects:

1. according to the structural characteristics of a dissimilar metal assembly part and the requirements of an assembly process, firstly, a metal upright A is conveyed into a positioning die assembly through a vibration disc and an air claw assembly, then, a metal base B and the metal upright A are assembled in an interference fit mode through high-frequency induction heating and riveting, the working principle of the assembly method is that the metal upright A is heated to a temperature higher than the recrystallization temperature in an induction mode, after the metal upright A is softened, the interference fit is realized through a pressure assembly mode, conditions are provided for high-precision laser welding, and the welding effect of large-penetration and narrow welding seams can be realized. The welding structure directly utilizes the matching characteristic of mechanical parts, so that the clamping precision (namely the matching precision) of the part to be welded meets the mechanical tolerance matching standard, namely, a determined characterization method and a detection standard are provided, and the dimensional precision of the laser welding seam is greatly improved.

2. The invention provides a laser-MIG composite welding method under the ultrasonic auxiliary action according to the welding process requirement of dissimilar metal assembly parts, the action of an ultrasonic vibration composite energy field enables brazing filler metal to quickly and uniformly penetrate and wet the welding part interface of the dissimilar metal assembly parts to obtain sufficient metallurgical reaction, and a fine grain strengthening effect is obtained in a cooling and solidification stage after a laser beam is removed, so that the structure of a dissimilar metal welding joint can be crystallized and refined, the penetration is larger, the forming is better, and the mechanical property of welding is obviously improved. The method has universality, can be widely applied to high-strength welding of dissimilar metal workpieces, and particularly to welding of dissimilar metals with poor compatibility of a conventional welding process.

3. The ultrasonic-assisted laser brazing device for the dissimilar metal assembly parts integrates three composite energy fields of a high-frequency induction heat source, laser-MIG composite welding and ultrasonic vibration in a compact space through ingenious and reasonable laser welding structural design and process method design structural design, optimizes the welding positions before, during and after welding through process program design, has high automation degree, and realizes both processing efficiency and welding quality.

Drawings

FIG. 1 is a block diagram of a dissimilar metal fitting according to the present invention;

FIG. 2 is a general structure diagram of an ultrasonic-assisted laser brazing device for dissimilar metal assemblies according to the present invention;

FIG. 3 is a block diagram of the cam divider assembly;

FIG. 4 is a block diagram of a positioning die assembly;

FIG. 5 is a block diagram of the bottom of the positioning die assembly;

FIG. 6 is a structural view of a high-frequency induction heating unit;

FIG. 7 is a block diagram of the A metal stud hold down block assembly;

FIG. 8 is a structural view of a metal stud A feeding assembly;

FIG. 9 is a block diagram of the X-direction moving assembly;

FIG. 10 is a block diagram of the gas claw assembly;

FIG. 11 is a structural view of a metal column A material moving assembly;

FIG. 12 is a view of the structure of a feeding assembly of the metal base B;

FIG. 13 is a block diagram of a magazine assembly;

FIG. 14 is a block diagram of a lift module assembly;

FIG. 15 is a block diagram of the lift block assembly;

FIG. 16 is a structural view of a metal base transfer assembly B;

FIG. 17 is a block diagram of a loading vacuum chuck assembly;

FIG. 18 is a view showing the construction of the pre-press assembly;

FIG. 19 is a block diagram of a laser-MIG hybrid welding assembly;

FIG. 20 is a block diagram of a dissimilar metal fitting blanking assembly;

the designations in the drawings have the following meanings:

a metal column feeding assembly 1, B metal base feeding assembly 2, laser-MIG composite welding assembly 3, dissimilar metal assembly blanking assembly 4, cam divider assembly 5, frame 6, dissimilar metal assembly 7, vibration disc 101, feeding straight plate 102, positioning plate 103, guide rod 104, straight vibration device 105, profile frame 106, A metal column material moving assembly 107, air claw assembly 108, X-direction moving assembly 109, X-direction air cylinder 1091, X-direction positioning plate 1092, linear bearing 1093, X-direction optical axis 1094, X-direction moving plate 1095, air claw assembly 108, T-shaped plate 1081, first adapter 1082, second adapter 3, first belt rod air cylinder 1084, air claw 1085, air claw finger 1086, first compact air cylinder 1071, first air cylinder fixing plate 1072, material moving block 1083, material moving chute plate 1074, material blocking plate 1075, material moving spring 1076, limiting screw 1077, material storage assembly 201, The device comprises a limit plate 202, a rotary workbench 203, an electric control rotary platform 204, an electric control rotary platform bracket 205, a lifting module assembly 206, a B metal base material transferring assembly 207, a prepressing assembly 208, a limit rod 2011, a guide pillar 2012, an elbow clamp 2013, a lifting plate 2014, a storage bottom plate 2015, a handle 2016, a driven synchronous wheel rotation shaft assembly 2061, a support plate 2062, a driven synchronous wheel 2063, a synchronous belt 2064, a limit switch 2065, a lifting slide block assembly 2066, a reinforcing rib 2067, a servo motor 2068, a driving synchronous wheel 2069, a guide rail 20610, a convex adapter 20661, a guide rail slide block 20662, a synchronous belt tooth-shaped splint 20663, a baffle 20664, a right-angle plate 20665, a top block 20666, a first electric module 2071, a third adapter 2072, a loading vacuum chuck assembly 2073, a first T-shaped section frame 2074, a first angle seat 2075, a fourth adapter 20731, a second section bar cylinder 33, a positioning disc 20734, an L-shaped frame disc 2081, a second angle seat, A first stroke cylinder 2083, an L-shaped mounting plate 2084, a column-shaped clamping part 2085, a positioning clamping block 2086, a sliding rail component 2087, a riveting cylinder 2089, a pressing block 20810, a six-axis robot 301, a wire feeder bracket 302, a wire feeder 303, a composite welding head bracket 304, a laser welding head 305, a MIG welding head 306, a second electric module 401, a blanking vacuum chuck component 402, a third triangular seat 403, a second T-shaped profile frame 404, a conveying belt 405, a blanking chute 406, a positioning die component 501, a workbench 502, a multi-channel pneumatic rotary joint 503, a cam divider 504, a synchronizing wheel 505, a speed reducing motor 506, a limit fixing stepped shaft 5011, a high-frequency induction heating component 5012, a positioning die 5013, an A metal upright column pressing block component 5014, an ultrasonic probe device 5015, a second compact cylinder 50141, a first L-shaped cylinder mounting plate 50142, a spring 50143, a pincushion 50144, a third compact cylinder 50121, a third compact, A second L-shaped cylinder mounting plate 50122, a high-frequency induction heating wire mounting plate 50123, a high-frequency induction heating wire 50124, an A metal upright column 701 and a B metal base 702.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the dissimilar metal assembling member 7 according to the present invention is composed of an a metal column 701 and a B metal base 702, the a metal column 701 and the B metal base 702, and the dissimilar metal assembling member 7 formed by assembling and welding the two are all axisymmetric structures, the a metal column 701 is a prism structure, the cross section is a polygon, the material is an a metal, and for example, the material may be a red copper column. The material of the metal base B is metal B, which is different from the metal upright column 701 a, for example, it may be a brass base. The surface of the metal base 702B is provided with profiling holes for assembling with the metal upright column 701A, and three positioning through holes are also formed. One end of the metal upright column 701A is inserted into the profiling hole of the metal base 702B and is welded with the metal base 702B, so that reliable connection is realized.

The invention provides an ultrasonic-assisted laser brazing method for dissimilar metal assemblies, which specifically comprises the following steps:

(1) according to the structural characteristics of the dissimilar metal assembly parts to be welded, namely, a positioning mould assembly with an upright positioning groove matched with the structure of the metal upright 701A is adopted to clamp the metal upright 701A of one of the parts to be welded; the metal upright column A701 is of a prism structure, the cross section of the metal upright column A is a polygon, and the metal upright column A is made of metal A;

(2) the metal upright column 701A is limited and kept fixed through a pressing component, meanwhile, a high-frequency induction component is made to approach the metal upright column 701A, and the upper end part of the metal upright column 701A is heated to a softening state;

(3) moving a metal base B702 serving as another piece to be welded to a position right above the metal upright A701 through a sucker assembly; the metal base 702B is made of metal B, profiling holes for assembling with the metal upright column 701A are formed in the surface of the metal base, and three positioning through holes are formed in the surface of the metal base; vertically dropping by taking the positioning through hole of the metal base 702B as a reference, and pressing the metal base 702B into the metal upright column 701A, so that the upper end part of the metal upright column 701A softened by induction heating in the step (2) is inserted into the profiling hole of the metal base 702B, and simultaneously ensuring that the end surface of the metal base 702B is flush with the end surface of the metal upright column 701A, thereby realizing interference fit pressure assembly of the metal base 702B and the metal upright column A, namely obtaining a dissimilar metal laser welding pre-assembly part;

preferably, after the interference fit pressure assembly of the metal upright column A701 and the metal base B702 is completed, the welding position of the dissimilar metal laser welding pre-assembly part is reheated through the high-frequency induction heating assembly, so that the preheating effect of the welding position is realized, and the weldability of the welding position is improved;

(4) starting an ultrasonic vibration source connected with the positioning die assembly; starting laser, and enabling the laser-MIG composite welding head to perform fusion brazing along the connecting surface contour lines of the A metal upright column 701 and the B metal base 702 under the driving of a six-axis robot; under the auxiliary action of the ultrasonic vibration composite energy field, the brazing filler metal quickly and uniformly permeates and wets the welding part interface of the dissimilar metal assembly part to obtain a sufficient metallurgical reaction, and a fine grain strengthening effect is obtained in a cooling and solidifying stage after the laser beam is removed to form the dissimilar metal laser welding assembly part;

(5) adsorb the dissimilar metal laser welding assembly part through vacuum chuck, move the dissimilar metal laser welding assembly part to the conveyer belt on, later fall into in the material box along the spout.

The invention also provides an ultrasonic-assisted laser brazing device for dissimilar metal assembly parts, wherein the main body of the ultrasonic-assisted laser brazing device is driven by a four-degree cam divider, four assembly processing stations are sequentially arranged on the periphery of a workbench of the cam divider, and the same positioning die is arranged on each assembly processing station; the four assembly processing stations are respectively a metal upright column feeding station A, a metal base feeding station B, a laser-MIG composite welding station and a dissimilar metal assembly part blanking station.

As shown in fig. 2-20, the ultrasonic-assisted laser brazing device for dissimilar metal assembling parts comprises an a metal column feeding assembly 1, a B metal base feeding assembly 2, a laser-MIG composite welding assembly 3, a dissimilar metal assembling part blanking assembly 4, a cam divider assembly 5 and a frame 6.

The cam divider assembly 5 comprises a positioning die assembly 501, a workbench 502, a multi-channel pneumatic rotary joint 503, a cam divider 504, a synchronizing wheel assembly 505 and a speed reducing motor 506, wherein the workbench 502 is circular, and four groups of positioning die assemblies 501 are uniformly arranged on the upper surface of the workbench along the circumferential direction; the multi-channel pneumatic rotary joint 503 is arranged at the central position of the workbench 502; the cam divider 504 is centrally disposed below the table 502; the synchronizing wheel assembly 505 comprises a driving synchronizing wheel, a driven synchronizing wheel and a synchronizing belt, wherein the driven synchronizing wheel is mounted on a rotating shaft of the cam divider 504, the driving synchronizing wheel is mounted on a rotating shaft of a speed reducing motor 506, and the speed reducing motor 506 drives the cam divider 504 through the synchronizing wheel assembly 505 to further drive the workbench 502 to rotate.

The positioning die assembly 501 comprises a limiting fixed stepped shaft 5011, a high-frequency induction heating assembly 5012, a positioning die 5013, an A metal upright post pressing block assembly 5014 and an ultrasonic probe device 5015.

The positioning die 5013 is provided with an upright positioning groove structurally matched with the metal upright 701A; the three limiting fixed stepped shafts 5011 are provided, each shaft is sleeved with a buffer spring, and the three limiting fixed stepped shafts 5011 are arranged on the upper surface of a positioning die 5013, are matched with the positions of the three positioning through holes in the metal base B702 in position and are used for being inserted into the three positioning through holes in the metal base B702 during welding. The ultrasonic probe device 5015 is fixedly installed at the middle position of the bottom of the positioning die 5013.

The high-frequency induction heating assemblies 5012 are provided with two groups, and are symmetrically arranged on two sides of an upright post positioning groove on the positioning die 5013. The high-frequency induction heating assembly 5012 specifically comprises a third compact cylinder 50121, a second L-shaped cylinder mounting plate 50122, a high-frequency induction heating wire mounting plate 50123 and a high-frequency induction heating wire 50124, wherein the third compact cylinder 50121 is mounted on the upper surface of the positioning die 5013 through the second L-shaped cylinder mounting plate 50122, the high-frequency induction heating wire mounting plate 50123 is mounted with the tail end of a piston rod of the third compact cylinder 50121 through the matching of threaded holes, and the high-frequency induction heating wire 50124 is mounted on the high-frequency induction heating wire mounting plate 50123 in a positioning manner.

The A metal column compression block assembly 5014 is arranged on the side face of the positioning die 5013 and used for compressing the plane end of the A metal column 701. The A metal upright post pressing block assembly 5014 specifically comprises a fourth compact cylinder 50141, a third L-shaped cylinder mounting plate 50142, springs 50143 and a v-21274and a shape pressing block 50144, wherein the fourth compact cylinder 50141 is mounted on the upper surface of the workbench 502 through the third L-shaped cylinder mounting plate 50142, the v-21274is mounted on the piston rod of the fourth compact cylinder 50141 through a threaded hole in a matched mode, and the springs 50143 and the tail end of the piston rod of the fourth compact cylinder 50141 are mounted in a coaxial matched mode. The distance between two arms of the v-21274-shaped pressing block 50144 is matched with the thickness of the A metal upright column 701, when the piston rod of the fourth compact cylinder 50141 extends, the v-21274; the v-shaped pressing block 50144 approaches to the A metal upright column 701 until the A metal upright column 701 is inserted into the v-21274; and the v-shaped pressing block 50144 is abutted against the spring 50143, so that the pressing of the A metal upright column 701 is realized.

The A metal upright feeding component 1 comprises a vibrating disk 101, a feeding straight plate 102, a positioning plate 103, a guide rod 104, a straight vibrator 105, a section frame 106, an A metal upright moving component 107, an air claw component 108 and an X-direction moving component 109, wherein the vibrating disk 101, the feeding straight plate 102 and the A metal upright moving component 107 form an output unit of the A metal upright, the vibrating disk 101 is connected to one side of the feeding straight plate 102, the A metal upright moving component 107 is connected to the other side of the feeding straight plate, the straight vibrator 105 is arranged at the bottom of the feeding straight plate, and the A metal upright moving component 107 and the straight vibrator 105 are both installed on the section frame 106. Four guide rods 104 are arranged on the bottom surface of the positioning plate 103, and the positioning plate 103 is supported and arranged above the feeding straight plate 102; the X-direction moving assembly 109 is mounted on the positioning plate 103.

The X-direction moving assembly 109 comprises an X-direction cylinder 1091, an X-direction positioning plate 1092, linear bearings 1093, an X-direction optical axis 1094 and an X-direction moving plate 1095, wherein the X-direction positioning plate 1092 is fixedly mounted on the positioning plate 103, the X-direction cylinder 1091 and a central through hole of the X-direction positioning plate 1092 are coaxially matched and mounted, one end of a piston rod of the X-direction cylinder 1091 is connected with the X-direction moving plate 1095, the two linear bearings 1093 are symmetrically and fixedly mounted on two sides of the X-direction positioning plate 1092, the two X-direction optical axes 1094 are respectively coaxially mounted with the two linear bearings 1093, the tail end of the X-direction optical axis 1094 is mounted at a threaded hole corresponding to the X-direction moving plate 1095, and the X-direction moving plate 1095 is driven.

The pneumatic claw assembly 108 comprises a T-shaped plate 1081, a first adaptor 1082, a second adaptor 1083, a first belt rod cylinder 1084, a pneumatic claw 1085 and a pneumatic claw finger 1086; the T-shaped plate 1081 and the X-direction moving plate 1095 are installed through hole matching, the first adaptor 1082 is L-shaped, one side of the first adaptor 1082 is installed on the T-shaped plate 1081, the first band rod air cylinder 1084 is installed on the other side of the first adaptor 1083, the second adaptor 1083 is also L-shaped, one side of the second adaptor is installed on the end face of the piston rod of the first band rod air cylinder 1084, the other side of the second adaptor 1083 is provided with the air claw 1085, and the air claw fingers 1086 are a pair and are symmetrically installed on the.

The A metal upright post material moving assembly 107 comprises a first compact cylinder 1071, a first cylinder fixing plate 1072, a material moving block 1073, a material moving chute plate 1074, a material baffle 1075, a material moving spring 1076 and a limit screw 1077; wherein, the through-hole coaxial fit installation of first compact cylinder 1071 and first cylinder fixed plate 1072 moves material piece 1073 one side and is the plane, and the opposite side is conformal with A metal column 701 side profile to install at first compact cylinder 1071's piston rod end through the screw hole, striker plate 1075, move material spring 1076 and stop screw 1077 and constitute buffering closing device, move material spring 1076 one side and fix on striker plate 1075, opposite side and stop screw 1077 coaxial fit installation. When the a metal column 701 is output into the material moving chute plate 1074 through the straight feeding plate 102, the material moving block 1073 moves the a metal column 701 to the side close to the limit screw 1077 under the driving of the first compact cylinder 1071, so as to prepare for the grabbing of the air claw finger 1086.

The B metal base feeding component 2 comprises a material storage component 201, a limiting plate 202, a rotary workbench 203, an electric control rotary platform 204, an electric control rotary platform support 205, a lifting module component 206, a B metal base material moving component 207 and a pre-pressing component 208, wherein the material storage component 201 and the limiting plate 202 are divided into three groups, the three groups are uniformly arranged on the circumferential direction of the rotary workbench 203, the electric control rotary platform 204 is arranged on the electric control rotary platform support 205 and is arranged below the rotary workbench 203, the three groups are arranged through hole matching, and the lifting module component 206 and the B metal base material moving component 207 are respectively arranged on the periphery of the rotary workbench 203.

The storage component 201 comprises a limiting rod 2011, guide pillars 2012, elbow clamps 2013, a lifting plate 2014, a storage bottom plate 2015 and handles 2016, the limiting rod 2011 is three altogether, install on the storage bottom plate 2015 through the screw hole cooperation, B metal base 702 passes the limiting rod 2011 through its surperficial three positioning hole and stacks up for a set of a plurality of, B metal base 702 below is equipped with lifting plate 2014, four apex angles of lifting plate 2014 are indent fillets to respectively with the coaxial cooperation of four guide pillars 2012, two sets of elbow clamps 2013 symmetry set up in storage bottom plate 2015 both sides and between two parties, be used for compressing tightly fixed storage bottom plate 2015, two sets of handles 2016 symmetry set up in storage bottom plate 2015 fore-and-aft position.

The lifting module assembly 206 comprises a driven synchronous wheel rotating shaft assembly 2061, a support plate 2062, a driven synchronous wheel 2063, a synchronous belt 2064, a limit switch 2065, a lifting slide block assembly 2066, a reinforcing rib 2067, a servo motor 2068, a driving synchronous wheel 2069 and a guide rail 20610. The supporting plate 2062 and the reinforcing ribs 2067 form an integral mounting structure of the lifting module assembly 206, wherein the reinforcing ribs 2067 are a pair and are symmetrically arranged at the bottom behind the supporting plate 2062, the servo motor 2068 is also arranged at the bottom behind the supporting plate 2062 and is positioned between the pair of reinforcing ribs 2067, a rotating shaft of the servo motor 2068 is coaxially matched and mounted with the driving synchronizing wheel 2069, the synchronizing belt 2064 and the driven synchronizing wheel 2063 form a belt transmission structure, the driven synchronizing wheel 2063 is arranged above the supporting plate 2062 and coaxially matched and mounted with the driven synchronizing wheel rotating shaft assembly 2061, and the limit switches 2065 are a pair and are arranged on the same side face of the supporting plate 2062 and used for limiting the upper limit position and the lower limit position of the movement of.

The lifting slide block assembly 2066 comprises a male adaptor 20661, a guide rail slide block 20662, a synchronous toothed clamping plate 20663, a blocking plate 20664, a right-angle plate 20665 and a top block 20666. The lifting slide block assembly 2066 is mounted on the guide rail 20610 through a guide rail slide block 20662, the front end and the side surface of the guide rail slide block 20662 are respectively and fixedly provided with a convex adaptor 20661 and a synchronous belt tooth-shaped clamping plate 20663 through thread matching, and the synchronous belt 2064 penetrates through the synchronous belt tooth-shaped clamping plate 20663 and is pressed and fixed through tooth matching and a nut. One side of the right-angle plate 20665 is fixedly arranged on the male adaptor 20661, the other side is provided with a top block 20666, and the baffle plate 20664 is arranged on the side surface of the right-angle plate 20665 in an N shape.

The B metal base moves material subassembly 207 includes first electronic module 2071, third adaptor 2072, material loading vacuum chuck subassembly 2073, first T shape section bar frame 2074 and first angle seat 2075, first electronic module 2071 is installed on first T shape section bar frame 2074, material loading vacuum chuck subassembly 2073 is installed on first electronic module 2071 lead screw nut seat through third adaptor 2072, material loading vacuum chuck subassembly 2073 realizes straight reciprocating motion under first electronic module 2071's drive.

The material loading vacuum chuck assembly 2073 includes fourth adaptor 20731, second band pole cylinder 20732, vacuum chuck 20733 and location disc 20734, fourth adaptor 20731 is the L shape, one side is installed on third adaptor 2072, second band pole cylinder 20732 is installed to the another side, location disc 20734 sets up below the piston rod end face of second band pole cylinder 20732 and realizes the installation location through the hole cooperation, vacuum chuck 20733 is totally three, install with the coaxial cooperation of three locating hole of location disc 20734 respectively.

The pre-pressing assembly 208 comprises an L-shaped section bar frame 2081, a second angle seat 2082, a first stroke cylinder 2083, an L-shaped mounting plate 2084, a columnar clamping piece 2085, a positioning clamping block 2086, a sliding rail assembly 2087, a second cylinder fixing plate 2088, a riveting cylinder 2089 and a pressing block 20810; the second angle seat 2082 is arranged at the right angle of the L-shaped section bar bracket 2081, the L-shaped mounting plate 2084 is arranged at one end of the L-shaped section bar bracket 2081 through a positioning hole, the first stroke cylinder 2083 is coaxially matched and arranged with a through hole formed by the L-shaped section bar bracket 2081, the piston rod of the first stroke cylinder 2083 is matched and arranged with the columnar clamping piece 2085 in a threaded manner, the positioning clamping block 2086 is in a T shape, one end of the slide rail component is provided with a circular groove and is coaxially arranged with the columnar clamping piece 2085 in a clearance fit way, the slide rail components 2087 are a pair, symmetrically arranged at two sides of the U-shaped through groove of the L-shaped mounting plate 2084, the upper surface of the second cylinder fixing plate 2088 is connected with the slide block of the slide rail assembly 2087, the lower surface is provided with a riveting cylinder 2089, the pressing block 20810 is U-shaped, one end of the riveting cylinder is in threaded fit with a piston rod of the riveting cylinder 2089, two round bosses are arranged below the other end of the riveting cylinder, the riveting cylinder 2089 and the pressing block 20810 are moved above the dissimilar assembly parts under the driving of the first stroke cylinder 2083;

the laser-MIG composite welding assembly 3 comprises a six-axis robot 301, a wire feeder support 302, a wire feeder 303, a composite welding head support 304, a laser welding head 305 and a MIG welding head 306, wherein the wire feeder 303 is mounted on the six-axis robot 301 through the wire feeder support 302, the composite welding head support 304 is L-shaped, one end of the composite welding head support is mounted on a sixth joint of the six-axis robot 301 in a matched mode through a hole, the MIG welding head 306 is mounted on the outer side of the other end of the composite welding head support, and the laser welding head 305 is mounted on the inner side of.

The blanking assembly 4 for the dissimilar metal assembly part comprises a second electric module 401, a blanking vacuum chuck assembly 402, a third triangular seat 403, a second T-shaped section frame 404, a conveyor belt 405 and a blanking chute 406, wherein the second electric module 401 is fixed on the second T-shaped section frame 404, the blanking vacuum chuck assembly 402 is installed on a screw nut seat of the second electric module 401, the conveyor belt 405 is located behind the second electric module 401, and the blanking chute 406 is arranged at the tail end of the conveyor belt.

The working process of the ultrasonic-assisted laser brazing device for the dissimilar metal assembly is as follows:

firstly, at the a metal column feeding station, the a metal column 701 is conveyed to the a metal column transferring assembly 107 through the vibrating disc 101, the straight vibrator 105, the straight feeding plate 102 and other devices, when the a metal column 701 is output into the transferring chute plate 1074, the a metal column 701 is moved to the side close to the limit screw 1077 under the driving of the first compact cylinder 1071, the air claw finger 1086 falls and clamps the a metal column 107 and moves above the positioning die 5013 under the action of the X-direction moving assembly 109, the air claw finger 1086 falls and stably places the a metal column 701 in the positioning die 5013, and then the a metal column is limited in the positioning die 5013 by the a metal column pressing block device 5014 and is kept fixed.

Then the cam divider assembly 5 works to enable the second positioning die 5013 to enter a metal upright A feeding station; at this time, the first positioning die 5013 enters the B metal base feeding station, the electrically controlled rotary table 204 rotates the storage component 201 to above the lifting module component 206, the jacking block 20666 contacts the lifting plate 2014 and lifts it upwards along the guide post 2012 under the driving of the servo motor 2068, the suction cup component 2073 is driven by the first electric module 2071 to move downwards to be right above the storage component 201, the vacuum suction cup moves downwards and adsorbs the B metal base 702 under the action of the second rod-carrying cylinder 20732, then the second rod-carrying cylinder 20732 is reset, the B metal base 702 is separated from the storage component 201 and reaches right above the a metal upright 701 under the driving of the first electric module 2071, the high-frequency induction heating component 5012 approaches the a metal upright 701 to inductively heat it to a softened state, then the B metal base 702 vertically falls down along the limit fixing stepped shaft 5011 with the positioning hole as a reference under the action of the suction cup component 2073, the chuck assembly 2073 resets and repeats the above actions. Driven by a first stroke cylinder 2083, a riveting cylinder 2089 is moved above a metal base 702B, and two round bosses arranged in front and at the back of a pressing block 20810 under the action of the riveting cylinder 2089 contact the surface of the metal base 702B and press the metal base into a metal upright column 701A, so that interference fit pressure assembly is realized.

Then the cam divider assembly 5 works to enable the third positioning die 5013 to enter a metal upright post feeding station A; the second positioning die 5013 enters a metal base B feeding station; at the moment, the first positioning die enters a laser-MIG composite welding station, the high-frequency induction heating assembly 5012 heats the pressure-assembled workpiece again, an ultrasonic probe 5015 below the positioning die 5013 is started according to preset frequency, an inert gas nozzle 308 blows air, and a laser-MIG composite welding head is driven by the six-axis robot 301 to perform fusion brazing along the contour line of the joint surface of the special-shaped holes of the A metal upright column 701 and the B metal base 702 and close to one side of the A metal upright column 701; under the auxiliary action of the ultrasonic vibration composite energy field, the brazing filler metal quickly and uniformly permeates and wets the welding part interface of the dissimilar metal assembly part to obtain a sufficient metallurgical reaction, and a fine grain strengthening effect is obtained at the cooling and solidification stage after the laser beam is removed, so that the dissimilar metal laser welding assembly part is formed.

After welding, the cam divider assembly 5 works to enable the fourth positioning die 5013 to enter a metal stand column A feeding station; the third positioning die enters a feeding station of a metal base B to perform interference fit pressure assembly on the workpiece; the second positioning die 5013 enters a laser-MIG composite welding station for welding; at this time, the first positioning die 5013 enters a blanking station of the dissimilar metal assembly, the blanking vacuum chuck component 402 moves downwards to adsorb the dissimilar metal assembly 7, then the metal upright post pressing block device 5014 and the high-frequency induction heating component 5012 reset, and under the action of the second electric module 401, the dissimilar metal assembly 7 leaves the positioning die 5013 and is moved to the conveyor belt 405, and falls into the material box along the chute 406 at the tail end of the conveyor belt.

Finally, the cam divider 5 continues to work, so that the four positioning dies 5013 sequentially enter corresponding stations and continuously circulate.

It will be obvious to those skilled in the art that the present invention may be varied in many ways, and that such variations are not to be regarded as a departure from the scope of the invention. All such modifications as would be obvious to one skilled in the art are intended to be included within the scope of this claim.

Claims (1)

1. The ultrasonic-assisted laser brazing device for the dissimilar metal assembly parts is characterized by comprising a metal upright column feeding assembly (1), a metal base feeding assembly (2), a laser-MIG (metal inert gas) composite welding assembly (3), a dissimilar metal assembly part blanking assembly (4), a cam divider assembly (5) and a rack (6);

the cam divider assembly (5) comprises a positioning die assembly (501), a workbench (502), a multi-channel pneumatic rotary joint (503), a cam divider (504), a synchronous wheel assembly (505) and a speed reducing motor (506), wherein the workbench (502) is circular, and four groups of positioning die assemblies (501) are uniformly arranged on the upper surface of the workbench along the circumferential direction; the multi-channel pneumatic rotary joint (503) is arranged at the central position of the workbench (502); the cam divider (504) is arranged at the lower center of the workbench (502); the synchronous wheel component (505) comprises a driving synchronous wheel, a driven synchronous wheel and a synchronous belt, wherein the driven synchronous wheel is arranged on a rotating shaft of the cam divider (504), the driving synchronous wheel is arranged on a rotating shaft of the speed reducing motor (506), and the speed reducing motor (506) drives the cam divider (504) through the synchronous wheel component (505) so as to drive the workbench (502) to rotate;

the positioning die assembly (501) comprises a limiting fixed stepped shaft (5011), a high-frequency induction heating assembly (5012), a positioning die (5013), an A metal upright post pressing block assembly (5014) and an ultrasonic probe device (5015);

the positioning die (5013) is provided with an upright positioning groove which is structurally matched with the metal upright (701) A; the number of the limiting fixed stepped shafts (5011) is three, each limiting fixed stepped shaft (5011) is sleeved with a buffer spring, and the three limiting fixed stepped shafts (5011) are arranged on the upper surface of a positioning die (5013) and are matched with the positions of three positioning through holes in the metal base B (702) in position and used for being inserted into the three positioning through holes in the metal base B (702) during welding; the ultrasonic probe device (5015) is fixedly arranged at the middle position of the bottom of the positioning die (5013);

the two groups of high-frequency induction heating assemblies (5012) are symmetrically arranged on two sides of an upright post positioning groove on the positioning die (5013); the high-frequency induction heating assembly (5012) specifically comprises a third compact cylinder (50121), a second L-shaped cylinder mounting plate (50122), a high-frequency induction heating wire mounting plate (50123) and a high-frequency induction heating wire (50124), wherein the third compact cylinder (50121) is mounted on the upper surface of the positioning die (5013) through the second L-shaped cylinder mounting plate (50122), the high-frequency induction heating wire mounting plate (50123) and the tail end of a piston rod of the third compact cylinder (50121) are mounted in a matched mode through threaded holes, and the high-frequency induction heating wire (50124) is mounted on the high-frequency induction heating wire mounting plate (50123) in a positioning mode;

the A metal upright post pressing block component (5014) is arranged on the side face of the positioning die (5013) and is used for pressing the plane end of the A metal upright post (701); the A metal upright post pressing block assembly (5014) specifically comprises a fourth compact cylinder (50141), a third L-shaped cylinder mounting plate (50142), a spring (50143) and a v-21274, and a shape pressing block (50144), wherein the fourth compact cylinder (50141) is mounted on the upper surface of a workbench (502) through the third L-shaped cylinder mounting plate (50142), 21274, a piston rod of the shape pressing block (50144) and the piston rod of the fourth compact cylinder (50141) are mounted in a matched mode through threaded holes, and the spring (50143) and the tail end of the piston rod of the fourth compact cylinder (50141) are mounted in a coaxial matched mode; the distance between two arms of the v-shaped pressing block (50144) is matched with the thickness of the A metal upright post (701), when a piston rod of the fourth compact cylinder (50141) extends, the v-shaped pressing block (50144) approaches to the A metal upright post (701) until the A metal upright post (701) is inserted into the v-shaped pressing block (21274), the inside of the v-shaped pressing block (50144) is abutted to the spring (50143), and the pressing of the A metal upright post (701) is realized;

the A metal upright feeding assembly (1) comprises a vibrating disc (101), a feeding straight plate (102), a positioning plate (103), a guide rod (104), a straight vibrator (105), a section frame (106), an A metal upright material moving assembly (107), an air claw assembly (108) and an X-direction moving assembly (109), wherein the vibrating disc (101), the feeding straight plate (102) and the A metal upright material moving assembly (107) form an output unit of the A metal upright, one side of the feeding straight plate (102) is connected with the vibrating disc (101), the other side of the feeding straight plate is connected with the A metal upright material moving assembly (107), the bottom of the feeding straight plate is provided with the straight vibrator (105), and the A metal upright material moving assembly (107) and the straight vibrator (105) are both installed on the section frame (106); four guide rods (104) are arranged on the bottom surface of the positioning plate (103), and the positioning plate (103) is supported and arranged above the feeding straight plate (102); the X-direction moving assembly (109) is arranged on the positioning plate (103);

the X-direction moving assembly (109) comprises an X-direction cylinder (1091), an X-direction positioning plate (1092), linear bearings (1093), an X-direction optical axis (1094) and an X-direction moving plate (1095), wherein the X-direction positioning plate (1092) is fixedly arranged on the positioning plate (103), the X-direction cylinder (1091) and a central through hole of the X-direction positioning plate (1092) are coaxially matched and arranged, one end of a piston rod of the X-direction cylinder (1091) is connected with the X-direction moving plate (1095), the two linear bearings (1093) are symmetrically and fixedly arranged on two sides of the X-direction positioning plate (1092), the two X-direction optical axes (1094) are respectively and coaxially arranged with the two linear bearings (1093), the tail end of the X-direction optical axis (1094) is arranged at a threaded hole corresponding to the X-direction moving plate (1095), and the X-direction moving plate (1095) is driven by the X;

the pneumatic claw assembly (108) comprises a T-shaped plate (1081), a first adapter piece (1082), a second adapter piece (1083), a first belt rod cylinder (1084), a pneumatic claw (1085) and a pneumatic claw finger (1086); the T-shaped plate (1081) and the X-direction moving plate (1095) are installed in a matched mode through holes, the first adaptor (1082) is L-shaped, one side of the first adaptor is installed on the T-shaped plate (1081), the other side of the first adaptor is provided with a first band rod cylinder (1084), the second adaptor (1083) is also L-shaped, one side of the second adaptor is installed on the end face of a piston rod of the first band rod cylinder (1084), the other side of the second adaptor is provided with a pneumatic claw (1085), a pair of pneumatic claw fingers (1086) are arranged, and the pneumatic claws (1085) are symmetrically installed on the pneumatic claw;

the A metal upright post material moving assembly (107) comprises a first compact cylinder (1071), a first cylinder fixing plate (1072), a material moving block (1073), a material moving chute plate (1074), a material baffle plate (1075), a material moving spring (1076) and a limit screw (1077); the device comprises a first compact cylinder (1071), a first cylinder fixing plate (1072), a material moving block (1073), a material baffle plate (1075), a material moving spring (1076) and a limit screw (1077), wherein the first compact cylinder (1071) and a through hole of the first cylinder fixing plate (1072) are coaxially matched and installed, one side of the material moving block (1073) is a plane, the other side of the material moving block is conformal to the side profile of an A metal upright column (701), and the material moving block is installed at the tail end of a piston rod of the first compact cylinder (1071) through a threaded hole; when the A metal upright column (701) is output into the material moving chute plate (1074) through the feeding straight plate (102), the material moving block (1073) moves the A metal upright column (701) to one side close to a limit screw (1077) under the driving of the first compact cylinder (1071) to prepare for the grabbing of a gas claw finger (1086);

the B metal base feeding assembly (2) comprises a material storage assembly (201), a limiting plate (202), a rotary workbench (203), an electric control rotary table (204), an electric control rotary table support (205), a lifting module assembly (206), a B metal base material moving assembly (207) and a pre-pressing assembly (208), wherein the material storage assembly (201) and the limiting plate (202) are divided into three groups which are uniformly arranged in the circumferential direction of the rotary workbench (203), the electric control rotary table (204) is arranged on the electric control rotary table support (205) and below the rotary workbench (203), the material storage assembly and the limiting plate are installed in a matched mode through holes, and the lifting module assembly (206) and the B metal base material moving assembly (207) are respectively arranged on the periphery of the rotary workbench (203);

the storage component (201) comprises three limiting rods (2011), guide pillars (2012), elbow clamps (2013), a lifting plate (2014), a storage bottom plate (2015) and handles (2016), wherein the three limiting rods (2011) are installed on the storage bottom plate (2015) in a matched mode through threaded holes, a metal base B (702) penetrates through the three positioning through holes in the surface of the metal base (2011) and is stacked by taking a plurality of limiting rods as a group, the lifting plate (2014) is arranged below the metal base B (702), four vertex angles of the lifting plate (2014) are concave fillets and are coaxially matched with the four guide pillars (2012) respectively, the two groups of elbow clamps (2013) are symmetrically arranged on two sides of the storage bottom plate (2015) in the middle and used for pressing and fixing the storage bottom plate (2015), and the two groups of handles (2016) are symmetrically arranged at the front and back positions of the storage bottom plate (2015);

the lifting module assembly (206) comprises a driven synchronous wheel rotating shaft assembly (2061), a supporting plate (2062), a driven synchronous wheel (2063), a synchronous belt (2064), a limit switch (2065), a lifting slide block assembly (2066), reinforcing ribs (2067), a servo motor (2068), a driving synchronous wheel (2069) and a guide rail (20610); the supporting plate (2062) and the reinforcing ribs (2067) form an integral mounting structure of the lifting module assembly (206), wherein the reinforcing ribs (2067) are in a pair and are symmetrically arranged at the bottom behind the supporting plate (2062), the servo motor (2068) is also arranged at the bottom behind the supporting plate (2062) and is positioned between the pair of reinforcing ribs (2067), a rotating shaft of the servo motor (2068) is coaxially matched with the driving synchronizing wheel (2069), the synchronous belt (2064) and the driven synchronizing wheel (2063) form a belt transmission structure, the driven synchronizing wheel (2063) is arranged above the supporting plate (2062) and is coaxially matched with the driven synchronizing wheel rotating shaft assembly (2061), and the limit switches (2065) are in a pair and are arranged on the same side face of the supporting plate (2062) and used for limiting the upper limit position and the lower limit position of the movement of the lifting plate (2014);

the lifting slide block assembly (2066) comprises a convex adaptor (20661), a guide rail slide block (20662), a synchronous toothed clamping plate (20663), a blocking plate (20664), a right-angle plate (20665) and a top block (20666); the lifting slide block assembly (2066) is arranged on the guide rail (20610) through a guide rail slide block (20662), the front end and the side surface of the guide rail slide block (20662) are respectively and fixedly provided with a convex adaptor (20661) and a synchronous belt tooth-shaped clamping plate (20663) through thread matching, and the synchronous belt (2064) penetrates through the synchronous belt tooth-shaped clamping plate (20663) and is compressed and fixed through tooth matching and a nut; one surface of the right-angle plate (20665) is fixedly arranged on the convex adapter (20661), the other surface of the right-angle plate is provided with a top block (20666), and the baffle plate (20664) is arranged on the side surface of the right-angle plate (20665) in an N shape;

the metal base material moving assembly (207) comprises a first electric module (2071), a third adapter (2072), a material loading vacuum sucker assembly (2073), a first T-shaped section frame (2074) and a first angle seat (2075), the first electric module (2071) is installed on the first T-shaped section frame (2074), the material loading vacuum sucker assembly (2073) is installed on a screw nut seat of the first electric module (2071) through the third adapter (2072), and the material loading vacuum sucker assembly (2073) realizes linear reciprocating motion under the driving of the first electric module (2071);

the feeding vacuum chuck assembly (2073) comprises a fourth adaptor (20731), a second rod-carrying cylinder (20732), vacuum chucks (20733) and positioning disks (20734), the fourth adaptor (20731) is L-shaped, one surface of the fourth adaptor is mounted on the third adaptor (2072), the other surface of the fourth adaptor is provided with the second rod-carrying cylinder (20732), the positioning disks (20734) are arranged below the end surface of a piston rod of the second rod-carrying cylinder (20732) and are matched through holes to realize mounting and positioning, the number of the vacuum chucks (20733) is three, and the three vacuum chucks are coaxially matched with three positioning holes of the positioning disks (20734) respectively;

the pre-pressing assembly (208) comprises an L-shaped section bar frame (2081), a second angle seat (2082), a first stroke cylinder (2083), an L-shaped mounting plate (2084), a columnar clamping piece (2085), a positioning clamping block (2086), a sliding rail assembly (2087), a second cylinder fixing plate (2088), a riveting cylinder (2089) and a pressing block (20810); the second angle seat (2082) is arranged at the right angle of the L-shaped section bar frame (2081), the L-shaped mounting plate (2084) is arranged at one end of the L-shaped section bar frame (2081) through a positioning hole, the first stroke cylinder (2083) is coaxially matched and arranged with a through hole formed in the L-shaped section bar frame (2081), a piston rod of the first stroke cylinder (2083) is in threaded fit with the columnar clamping piece (2085), the positioning clamping piece (2086) is T-shaped, one end of the positioning clamping piece is provided with a circular groove and is coaxially clearance fit with the columnar clamping piece (2085), the sliding rail components (2087) are in a pair and are symmetrically arranged at two sides of the U-shaped through groove of the L-shaped mounting plate (2084), the upper surface of the second cylinder fixing plate (2088) is connected with a sliding block of the sliding rail component (2087), the lower surface is provided with the riveting cylinder (2089), the pressing block (20810) is U-shaped, one end of the pressing block (208, the riveting cylinder (2089) and the pressing block (20810) are moved to the upper part of the dissimilar assembly part under the driving of the first stroke cylinder (2083);

the laser-MIG composite welding assembly (3) comprises a six-axis robot (301), a wire feeder support (302), a wire feeder (303), a composite welding head support (304), a laser welding head (305) and a MIG welding head (306), wherein the wire feeder (303) is installed on the six-axis robot (301) through the wire feeder support (302), the composite welding head support (304) is L-shaped, one end of the composite welding head support is installed on a sixth joint of the six-axis robot (301) in a matched mode through a hole, the MIG welding head (306) is installed on the outer side of the other end of the composite welding head support, and the laser welding head (305) is installed on the inner;

the blanking assembly (4) for the dissimilar metal assembly part comprises a second electric module (401), a blanking vacuum chuck assembly (402), a third triangular seat (403), a second T-shaped section frame (404), a conveyor belt (405) and a blanking chute (406), wherein the second electric module (401) is fixed on the second T-shaped section frame (404), the blanking vacuum chuck assembly (402) is installed on a lead screw nut seat of the second electric module (401), the conveyor belt (405) is located behind the second electric module (401), and the tail end of the conveyor belt is provided with the blanking chute (406).

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