CN111618178A

CN111618178A - Full-automatic punching and welding equipment for arc striking plate and bimetal of low-voltage electrical appliance

Info

Publication number: CN111618178A
Application number: CN202010506893.2A
Authority: CN
Inventors: 不公告发明人
Original assignee: Yueqing Yedao Electromechanical Co ltd
Current assignee: Yueqing Yedao Electromechanical Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2020-09-04

Abstract

The invention discloses full-automatic punching and welding equipment for an arc striking plate and bimetal of a low-voltage electrical appliance, wherein a punching and welding mould is arranged on a main rack, and an arc striking plate feeding assembly and a bimetal feeding assembly are arranged on an auxiliary rack; a horizontal welding assembly and a vertical welding assembly which are matched are arranged at the outlet end of the punching and welding die; a bimetallic blanking mechanism and a bimetallic jacking assembly are arranged below the horizontal welding assembly; the structure of the double-gold jacking assembly is that the double-gold jacking assembly comprises an upward pushing cylinder, a cylinder body of the upward pushing cylinder is fixed on a lower plate, a cylinder rod of the upward pushing cylinder is fixedly connected with a supporting plate, a guide plate and guide rods are arranged on the supporting plate side by side at intervals, a first double-gold storage groove is formed in the upper end of the guide plate, and a second double-gold storage groove is formed in the upper end of the guide rod. The equipment can complete one-time assembly, punching welding and automatic sorting of unqualified bimetal of the arc striking plate and the bimetal in the punching welding mould in the same punching welding mould.

Description

Full-automatic punching and welding equipment for arc striking plate and bimetal of low-voltage electrical appliance

Technical Field

The invention belongs to the technical field of mechanical equipment, and relates to full-automatic punching and welding equipment for an arc striking plate and bimetal of a low-voltage apparatus.

Background

The arc striking plate and the double-metal assembly part are core parts of a low-voltage apparatus, the arc striking plate and the double-metal assembly part are basically processed by stamping, assembling and welding separation operations at present, the arc striking plate and the double-metal assembly part are formed by stamping through different stamping dies and then are stacked into a stack by manpower, are manually assembled and placed in a clamp of welding equipment, and are welded and formed by special welding equipment.

The process causes the arc striking plate and the double-metal assembly part to have inconsistent performance of the circuit breaker, and the non-repairable part accounts for 65-85%. In addition, the arc striking plate is bent more, so that smooth automatic feeding without material clamping cannot be realized, and automatic operation is difficult to realize; the arc striking plate and the bimetal are various composite metals, spatter is easy to generate during welding, the welding connection firmness is not qualified due to the spatter, the mould is damaged due to the spatter once the spatter is adhered to the mould, and the qualified product cannot be produced by the mould; stamping efficiency is high, welding efficiency is low, stamping efficiency causes the waste, welding electrode is overheated to cause the electrode life-span short, leads to prior art unable realization punching press and welded obstacle in the mould, extravagant labour promptly, and the product is scrapped highly, and the inefficiency again, and process is loaded down with trivial details, has increased mould, manpower, administrative cost simultaneously, can't satisfy batch production's demand.

Through retrieval, a system for realizing full-automatic continuous stamping and welding in a die at the same station does not exist at present, and the application of automatic stamping and welding equipment in the die for low-voltage electric appliance arc striking plates and bimetallic strips does not exist.

Disclosure of Invention

The invention aims to provide full-automatic punching and welding equipment for an arc striking plate and bimetal of a low-voltage electrical appliance, which solves the problems that in the prior art, in the process of punching and welding the arc striking plate and the bimetal, manual step-by-step operation is adopted, and the arc striking plate and the bimetal cannot realize full-automatic feeding, punching, welding and cutting forming in a die, so that poor welding, low product quality, high production cost and low working efficiency are caused.

The invention adopts the technical scheme that the full-automatic punching and welding equipment for the arc striking plate and the bimetal of the low-voltage electrical appliance comprises a main rack and an auxiliary rack, wherein a punching and welding mould is arranged on the main rack, and an arc striking plate feeding assembly and a bimetal feeding assembly are arranged on the auxiliary rack; a horizontal welding assembly and a vertical welding assembly which are matched are arranged at the outlet end of the punching and welding die; a bimetallic blanking mechanism and a bimetallic jacking assembly are arranged below the horizontal welding assembly;

the structure of the double-gold jacking assembly is that the double-gold jacking assembly comprises an upward pushing cylinder, a cylinder body of the upward pushing cylinder is fixed on a lower plate, a cylinder rod of the upward pushing cylinder is fixedly connected with a supporting plate, a guide plate and guide rods are arranged on the supporting plate side by side at intervals, a first double-gold storage groove is formed in the upper end of the guide plate, and a second double-gold storage groove is formed in the upper end of the guide rod.

The invention relates to a full-automatic punching and welding device for an arc striking plate and bimetal of a low-voltage apparatus, which is characterized by also comprising:

the structure of the punching and welding mould is that the punching and welding mould comprises a lower mould seat and an upper mould seat, wherein the lower mould seat is fixedly connected with a base at the lower part of a main rack through a lower pad foot, and the upper mould seat is fixedly connected with the upper part of the main rack through an upper pad foot; the upper surface of the lower die base is provided with a lower die base plate, the upper surface of the lower die base plate is provided with a lower die plate, the lower die plate is provided with upper stripper plates at intervals upwards, the upper stripper plates are connected with the upper die plate at intervals, the upper die plate is upwards fixed with the upper die base plate and the upper die base into a whole, and a die handle is arranged at the position of the upper die base close to the middle; the lower die base and the upper die base are in sliding sleeve joint; the lower surface of the upper template is provided with two pairs of slingshot adhesives, the upper surface of the upper stripper plate is provided with a pair of pressure strips, the pair of pressure strips is perpendicular to the projection line of the horizontal welding assembly, a section of through groove is arranged between the pair of pressure strips and is called as a pressure groove, and the upper surface of the lower template is provided with a plurality of groups of floating nails corresponding to the pressure strips.

The double-gold blanking mechanism is positioned on a step plate at the output end of the lower die holder and structurally comprises a fixed plate and a fixed die holder, wherein the fixed plate and the side vertical surface of the fixed die holder are correspondingly fixed on the bottom surface and the side surface of the square groove; four sliding columns are fixedly arranged between the fixed plate and the fixed die holder, a sliding plate is sleeved on the four sliding columns together, and the sliding plate slides back and forth along the sliding columns;

four blanking units are arranged between the fixed plate and the fixed die holder along the feeding direction and are respectively called as a first unqualified blanking unit, a first qualified blanking unit, a second unqualified blanking unit and a second qualified blanking unit; the first unqualified blanking unit and the second unqualified blanking unit are in driving connection with a multi-stroke hydraulic cylinder I, the first qualified blanking unit and the second qualified blanking unit are in driving connection with a multi-stroke hydraulic cylinder II, the cylinder body of the hydraulic cylinder II is installed on the fixed plate, and the cylinder body of the hydraulic cylinder I is installed on the cylinder body of the hydraulic cylinder II;

the sliding plate is fixedly connected with four pairs of sliding vertical plates, two third push plates and two fourth push plates are distributed between the four pairs of sliding vertical plates, the inner side of each sliding vertical plate is in sliding connection with a U-shaped groove on the outer side of a sliding sleeve, a return spring is arranged in the U-shaped groove on the outer side of the sliding sleeve, the lower end of each return spring is arranged in a spring hole in the shoulder part of the fixed die holder, a main cutter is clamped in the U-shaped groove on the inner side of each pair of sliding sleeves, and a limiting plate; the tail end of the cutting edge of each main cutter is vertically provided with a transverse cutter, and a rectangular space is reserved between each transverse cutter and the corresponding main cutter.

The punching and trimming device has the advantages that punching, trimming, blanking, primary bending and secondary bending of the arc striking plate are completed in the same punching and welding die, trimming, blanking and feeding of the bimetal are completed, one-time assembly of the arc striking plate and the bimetal in a die, automatic punching and welding of the arc striking plate and the bimetal in the die with one discharge and two discharge and automatic sorting of unqualified bimetal are completed. The equipment cost of the whole device is reduced by 30 percent, the production efficiency is improved by 10 times, the service life of the electrode is prolonged by 50 times, the welding strength reaches 100 percent, and the qualification rate reaches 100 percent.

Drawings

FIG. 1 is a schematic diagram of the overall architecture of the system of the present invention;

FIG. 2 is a schematic view of the station arrangement of the work object (arc striking plate and bimetal) of the present invention;

fig. 3 is a schematic structural view of the die 2 of the present invention;

FIG. 4 is a schematic view of the construction of the erection welded assembly 89 of the present invention;

fig. 5a is a schematic structural view of a bimetallic blanking mechanism 6 in the invention;

FIG. 5b is a view in the direction of e in FIG. 5 a;

FIG. 5c is an exploded view of the direction d of FIG. 5 b;

FIG. 6 is a schematic diagram illustrating the layout of the run-out areas 36 of the inner arc plates of the stamping and welding mold 2 according to the present invention;

FIG. 7 is a perspective view of the upper and lower mold portions of the die 2 of the present invention;

FIG. 8 is a schematic structural view of a die 2 and a configuration apparatus according to the present invention;

fig. 9 is a schematic structural view of the double gold robot 88 of the present invention.

In the figure, 1, a main rack, 2, a punching and welding die, 3, a striking plate feeding assembly, 4, a double-gold feeding assembly, 5, a horizontal welding assembly, 6, a double-gold punching mechanism, 7, a double-gold jacking assembly, 8, an auxiliary rack, 9, a striking plate material strip, 10, a first station, 11, a round punching hole, 12, a third station, 13, a fourth station, 14, a fifth station, 15, a double-gold material strip, 16, a sixth station, 17, double gold, 18, a seventh station, 19, a striking plate, 20, a first auxiliary station, 21, a second station, 22, a die handle, 23, an upper die base, 24, an upper die cushion plate, 25, an upper die plate, 26, a material pressing strip, 27, an upper stripper plate, 28, a lower die base, 29, a lower die cushion plate, 30, a lower die plate, 31, a conveying hole, 32, a welding surface, 33, a double-gold conveying channel, 34, an optical axis, 35, a guide sleeve, 36, a striking plate sample discharging section, 37, a double-gold channel outlet, 38. cutting joints, 39, welding points, 40, an eighth station, 41, a push rod, 42, a bimetal storage groove, 43, a punching needle, 44, a floating nail, 45, a bayonet sliding groove, 46, a spring, 47, a push rod, 48, a punching insert, 49, an upper die insert I, 50, a lower die insert I, 51, a T-shaped cutting edge six, 52, a T-shaped block I, 53. T-shaped cutting edge I, 54, a T-shaped cutting edge II, 55, an upper die insert II, a 56. T-shaped block II, 57, a lower die insert II, 58, an upper die primary bending, 59, a bevel edge I, 60, a straight edge I, 61, a straight edge II, 62, a lower die primary bending, 63, a straight edge II, 64, an upper die secondary bending, 65, a straight edge six, 66.V edge, 67, a straight edge III, 68, a bevel edge III, 69, a lower die secondary bending, 70, a straight edge IV, 71. T-shaped block eight, 8672, an upper die insert III, 73. T-shaped cutting edge III, 74, a bevel edge III, 75, 76. the first arrow head, the second arrow head, the 78 primary bending output groove, the 79 primary bending groove, the 80 secondary bending groove, the 81 secondary bending output groove, the 82 blanking groove, the 83 positioning groove, the 84 finished product collecting groove, the 85 waste collecting groove, the 86 secondary auxiliary station, the 87 arc striking plate manipulator, the 88 dual-gold manipulator, the 89 upright welding component, the 90 punching groove, the 91 lower plate, the 92 supporting plate, the 93 guide bar, the 94 push-up cylinder, the 95 electrode, the 96 sliding frame, the 97 linear sliding pair, the 98 cylinder rod, the 99 vertical plate, the 100 suspension plate, the 101 cylinder I, the 102 cylinder II, the 103F sliding seat, the 104 push plate I, the 105 active joint, the 106 connecting plate, the 107 upright F sliding plate, the 108 baffle plate, the 109 cylinder III, the 110 sliding block, the 111 active connecting seat, the 112 push plate II, the 113 step bolt, 114, U-shaped port, 115, double roller I, 116, double roller II, 117, guide conveying plate, 118, single roller I, 119, single roller II, 120, groove plate, 121, upper cushion plate, 122, upper end plate, 123, double-slide-bar cylinder, 124, double slide bar, 125, lower end plate, 126, correction block, 127, convex tip, 128, front step, 129, convex electrode, 130, back step, 131, freezing liquid groove, 132, rectangular groove, 133, hydraulic cylinder I, 134, fixed plate, 135, sliding plate, 136, sliding column, 137, push plate III, 138, sliding vertical plate, 139, thin push rod, 140, main cutter, 141, pin hole I, 142, pin hole II, 143, sliding sleeve, 144, step push rod, 145, transverse cutter, 146, fixed cutter, 148, push plate IV, 149, first qualified discharge groove, 150, hydraulic cylinder II, 151, first qualified discharge groove, 152, fixed die holder, 153, transverse blade, 154, slingshot, 155, a T-shaped block III, 156, an oblique angle V-shaped groove, 157, a straight edge V, 158, a second qualified discharge groove, 159, a second product discharge groove, 160, a segmentation line, 161, a relief groove, 162, a double-gold-strip channel, 163, a light color curtain, 171, a side elevation, 172, a square groove, 173, a base, 174, a first plug pin, 175, a second plug pin, 176, a spring hole, 177, a first unqualified blanking unit, 178, a first qualified blanking unit, 179, a second unqualified blanking unit, and 180, a second qualified blanking unit.

Detailed Description

The upper, lower, left and right positions in the following description are based on the display on the corresponding drawings, and so on.

Referring to fig. 2, 6, 7 and 8, the process flow of the arc starting plate and the dual-gold stamping assembly is (the process flow is one of the innovative points of the present invention),

the arrow direction of the X axis is a feeding advancing direction (in fig. 8, the arc striking plate material strip 9 is conveyed forward along arrow one 76, the double-metal material strip 15 is conveyed forward along arrow two 77, and the feeding directions of fig. 2 and fig. 8 are substantially the same), the arc striking plate 19 is fed along a plurality of pairs of bayonet chutes 45 in a horizontal posture along with the arc striking plate material strip 9, and the double-metal 17 is fed along the double-metal material strip 15 in a vertical posture along the double-metal conveying channel 33, that is, the arc striking plate material strip 9 and the double-metal material strip 15 are synchronously input into the impulse welding mold 2 at a vertical angle with each other;

in the first path, the following stations are sequentially arranged along the advancing direction of the arc starting plate 19, the first station 10 is used for processing circular punched holes 11 at two edges of an arc starting plate material strip 9, the first station 10 corresponds to a punching groove 90 on the lower template 30 (a punching insert 48 is matched with a pair of punching needles 43 upwards to punch holes, the left edge and the right edge of the arc starting plate material strip 9 are simultaneously punched, and the punched circular punched holes 11 are used as inserting holes for drawing the arc starting plate material strip 9 forwards by an arc starting plate manipulator 87);

the second station 21 is that the edge cutting and arc striking plate manipulator 87 performs jack positioning on the arc striking plate material strip 9, the second station 21 corresponds to a positioning groove 83 on the lower template 30, the burr on the right edge of the arc striking plate material strip 9 shown in figure 2 needs to be cut off, and the burr is removed for subsequent welding, the edge cutting operation is that an upper die insert 49 is matched with a lower die insert 50, and the left edge of the arc striking plate material strip 9 is cut off along the redundant part by utilizing the vertical shearing of a T-shaped knife edge 53 and a T-shaped knife edge six 51 (the burr removing operation also belongs to the operation range of the device of the invention);

the third station 12 performs sample punching, the third station 12 corresponds to a punching groove 82 on the lower template 30, the upper die insert II 55 and the lower die insert II 57 are in face-to-face fit, the T-shaped knife edge II 54 and the T-shaped knife edge VII are utilized to punch the arc striking plate material belt 9 out a y-direction cutting seam 38, a sample plate of the arc striking plate 19 with the required width and length of a welding finished product is obtained, and the sample plate is still connected with the left edge (waste edge) of the arc striking plate material belt 9;

the fourth station 13 performs stamping of primary bending, and the fourth station 13 corresponds to the primary bending groove 79 and the primary bending output groove 78 on the lower template 30;

and a fifth station 14 performs secondary bending stamping, wherein the fifth station 14 corresponds to a secondary bending groove 80 and a secondary bending output groove 81 on the lower template 30.

The second path, which is performed simultaneously with the first path, is inserted into the bimetallic strip 15 by the bimetallic manipulator 88 and pushed to the first auxiliary station 20 along the pre-processed conveying hole 31 (the section of the trough plate 120 shown in fig. 8 is only a part of the bimetallic conveying channel 33, and the outlet end of the bimetallic conveying channel 33 corresponds to the position of the first auxiliary station 20); the bimetal blanking mechanism 6 carries out identification processing according to the detection result, and completely cuts off the bimetal 17 and the bimetal strip 15 to form a single part of the bimetal 17 (the outer edge with the conveying hole 31 is cut off, and is shown in fig. 5);

a sixth station 18, the single piece of bimetal 17 falls into the pair of bimetal storage tanks 42 of the bimetal jacking assembly 7, then the single piece of bimetal 17 is lifted by the pushing-up cylinder 94 on the bimetal jacking assembly 7, the pair of bimetal in the bimetal storage tanks 42 is pushed up to the vertical welding assembly 89 to position and press the front ends of the pair of arc striking plates 19, so that the bimetal 17 is aligned with one bending of the arc striking plates 19, and the two bimetal 17 lifted in place and the front ends of the two arc striking plates 19 are respectively correspondingly and tightly connected, so that the synchronous welding of the two bimetal 17 and the respective arc striking plates 19 is implemented in the subsequent step;

welding points 39 of two arc striking plates 19 and the corresponding bimetal 17 are welded at the same time at the seventh station 18, a vertical welding assembly 89 is matched with a horizontal welding assembly 5 according to the reference of fig. 3, the welding point 39 of the outer surface of each arc striking plate 19 which is bent once is firmly welded with the welding surface 32 of the upper part of the corresponding bimetal 17, and two punching welding semi-finished products are obtained at the same time;

and blanking the punching and welding semi-finished product at an eighth station 40, disconnecting the tail end of the arc striking plate 19 in the punching and welding semi-finished product from the arc striking plate material belt 9 to obtain an independent and complete punching and welding finished product, and feeding the punching and welding finished product into a finished product collecting tank 84 or a waste collecting tank 85 for outputting according to a detection result.

The sixth station 16 and the seventh station 18 are operated simultaneously for two studs 17 and two arc ignition plates 19 (referred to as a one-out-two operation). Although the eighth station 40 is shown in fig. 2 as being positioned before the seventh station 18, it is actually for convenience of drawing an exploded view, and the actual sequence of operations of each is not changed.

Referring to fig. 1 and 3, the overall structure of the invention is that the invention comprises a main rack 1 and an auxiliary rack 8, a punching and welding die 2 is arranged on the main rack 1 (the punching and welding die 2 is a comprehensive functional die integrating punching, folding, cutting, welding and cooling), an arc striking plate feeding component 3 and a dual-gold feeding component 4 are arranged on the auxiliary rack 8, an arc striking plate material strip 9 output by the arc striking plate feeding component 3 is step-input into the punching and welding die 2 in a horizontal state, and a dual-gold material strip 15 output by the dual-gold feeding component 4 is step-input into the punching and welding die 2 in a vertical state; a horizontal welding component 5 and a vertical welding component 89 which are matched are arranged at the outlet end of the punching and welding die 2, the vertical welding component 89 is correspondingly matched with the horizontal welding component 5 in a vertical mode, the arc striking plate 19 and the bimetal 17 are electrified and pressurized for welding, and meanwhile, the welding of two finished products is completed; a bimetallic blanking mechanism 6 and a bimetallic jacking assembly 7 are arranged below the horizontal welding assembly 5, and the bimetallic jacking assembly 7 is fixedly arranged on the bottom surface of the base 173 and upwards extends out of the feeding device through the square groove 172.

Referring to fig. 3 and 6, the main structure of the punching and welding mold 2 includes a lower mold seat 28 and an upper mold seat 23, the lower mold seat 28 is fixedly connected with a base 173 at the lower part of the main rack 1 through a lower pad, and the upper mold seat 23 is fixedly connected with the upper part of the main rack 1 through an upper pad; the upper surface of the lower die base 28 is provided with a lower die base plate 29, the upper surface of the lower die base plate 29 is provided with a lower die plate 30, the lower die plate 30 is upwards provided with an upper stripper plate 27 at intervals, the upper stripper plate 27 is connected with the upper die plate 25 at intervals through screws, the upper die plate 25 is upwards fixed with the upper die base plate 24 and the upper die base 23 into a whole, the upper die base 23 is provided with a die shank 22 close to the middle position (the stamping die is required to be arranged on a press machine, a hole is arranged on a sliding block of the press machine, the hole is the position where the die shank 22 is inserted, a locking mechanism is arranged on the sliding block, the die shank 22 is used for enabling the upper die to have a more accurate position on the press machine, a guide pillar and a guide sleeve are required when the precision requirement is high, the upper die part can be quickly aligned, and the sliding block of the press machine also needs, to effect a reciprocating motion of the punch); the lower die holder 28 and the upper die holder 23 are slidably sleeved (see fig. 6, the sleeving mode adopts a pair of straight guide posts 34+ guide sleeves 35+ return springs + linear sliding bearings to be combined and connected), the lower die holder 28 is fixed, and the upper die holder 23 is driven by an independent motor (or a hydraulic cylinder) to elastically move up and down along the pair of straight guide posts 34 and the guide sleeves 35 in a buffering manner, so that the lower die holder 28 and the upper die holder are mutually opened and closed; a gap of 0.03mm is reserved between the upper stripper plate 27 and the lower template 30, and the gap is used for passing and pressing the arc striking plate material belt 9; two pairs of bow binders 154 are arranged on the lower surface of the upper template 25, a pair of pressing pressure strips 26 are arranged on the upper surface of the upper stripper plate 27, the pair of pressing pressure strips 26 are perpendicular to the projection line of the horizontal welding component 5, a section of through groove is arranged between the pair of pressing pressure strips 26 and is called a pressing groove (the pressing pressure strips 26 are inverted T-shaped and are in floating connection with the upper stripper plate 27, a vertical plate of the pressing pressure strips 26 on the upper surface is shown in figure 3, a bottom plate T-shaped is arranged in an inner U-shaped groove in the upper stripper plate 27 and is not shown in figure 3, the bow binders 154, namely elastic buffering parts, arranged between the upper template 25 and the upper stripper plate 27, the mounting bow binders 154, namely the pressing pressure strips 26 are convenient to float and press the arc guiding plate 9 along the upper stripper plate 27 through the pressing groove), a plurality of groups of floating nails 44 are arranged on the upper surface of the lower template 30 corresponding to the pressing pressure strips 26, the lower parts of the floating nails 44 are sleeved with springs 46, the two edges of the arc striking plate material belt 9 are clamped in the bayonet chutes 45 at the upper parts of the floating nails 44, and all the floating nails 44 and the pressing grooves are matched with each other to guide and support the arc striking plate material belt 9 to move forward, so that the arc striking plate material belt 9 is prevented from being accidentally bonded with the lower template 30 during stamping.

Referring to fig. 4, 3 and 1, the vertical welding assembly 89 comprises an upper backing plate 121, wherein the upper backing plate 121 is fixedly connected with an upper backing plate 24 upwards through a square notch of an upper template 25; an upper end plate 122 is connected to the lower surface of the upper backing plate 121, a cylinder body of a double-sliding-rod cylinder 123 is mounted on the lower surface of the upper end plate 122, a lower end plate 125 is fixed to the end of a double-sliding rod 124 of the double-sliding-rod cylinder 123, and a pair of correction blocks 126 are arranged on the lower surface of the lower end plate 125 at intervals side by side; a rectangular groove 132 is formed in the middle of the front end of each correction block 126, a convex electrode 129 is embedded in the front of the rectangular groove 132, a freezing liquid groove 131 is formed in the rear of the rectangular groove 132, a convex tip 127 is arranged at the lower end of each correction block 126, a front slope and a rear slope of the convex tip 127 are respectively provided with a front step 128 and a rear step 130, and the shape and the size of the convex tip 127, the front step 128 and the rear step 130 are consistent with the shape and the size of the secondary bending of the arc ignition plate 19; the correcting block 126 further corrects the shape of the arc striking plate 19 after the secondary bending, so that the deformation amount of the arc striking plate 19 and the bimetal 17 during welding is controlled to be the minimum degree, and the punching welding finished product of the arc striking plate 19 and the bimetal 17 meets the requirement of tripping performance; the refrigerating fluid in the refrigerating fluid tank 131 can effectively circulate and cool the convex electrode 129 in the welding gap, and the deformation of the convex electrode 129 and the splashing caused by electrode overheating are eliminated to the maximum extent.

Referring to fig. 5a, 5b, 5c, wherein fig. 5b is a view from e in fig. 5a, fig. 5c is a view from d in fig. 5b (isometric view),

the double-gold blanking mechanism 6 is positioned on a step plate at the output end of the lower die holder 28, and the double-gold blanking mechanism 6 comprises a fixed plate 134 and a fixed die holder 152, wherein the fixed plate 134 and the side vertical surface 171 of the fixed die holder 152 are correspondingly fixed on the bottom surface and the side surface of the square groove 172; four sliding columns 136 are fixedly arranged between the fixed plate 134 and the fixed die holder 152, a sliding plate 135 is sleeved on the four sliding columns 136 together, and the sliding plate 135 slides forwards and backwards along the sliding columns 136; four blanking units (the four blanking units are respectively corresponding to an equal section by taking a virtually equal segmentation line 160 as a boundary, and are respectively called A, B, C, D sections in the following description, see fig. 5C) and are respectively called a first unqualified blanking unit 177 (corresponding to the section a), a first qualified blanking unit 178 (corresponding to the section B), a second unqualified blanking unit 179 (corresponding to the section C) and a second qualified blanking unit 180 (corresponding to the section D) are arranged between the fixed plate 134 and the fixed die holder 152 along the feeding direction; the first unqualified blanking unit 177 and the second unqualified blanking unit 179 are in driving connection with the multi-stroke first hydraulic cylinder 133, the first qualified blanking unit 178 and the second qualified blanking unit 180 are in driving connection with the multi-stroke second hydraulic cylinder 150, the cylinder body of the second hydraulic cylinder 150 is installed on the fixing plate 134, and the cylinder body of the first hydraulic cylinder 133 is installed on the cylinder body of the second hydraulic cylinder 150;

the sliding plate 135 is fixedly connected with four pairs of sliding vertical plates 138, two push plate three 137 and two push plate four 148 (the push plate three 137 and the push plate four 148 are arranged at intervals) are distributed between the four pairs of sliding vertical plates 138, the inner side of each sliding vertical plate 138 is slidably connected with a U-shaped groove on the outer side of a sliding sleeve 143, a return spring is arranged in the U-shaped groove on the outer side of each sliding sleeve 143, the lower end of each return spring is arranged in a spring hole 176 on the shoulder of the fixed die holder 152, a main cutter 140 (four main cutters 140 in total) is clamped in the U-shaped groove on the inner side of each pair of sliding sleeves 143, each pair of return springs realizes that the respective sliding sleeve 143 drives the main cutter 140 to elastically recover upwards, and plays a role of preventing the adhesion of the strip materials during stripping, a limiting plate (not shown in the figure) is arranged on the side; a transverse cutter 145 (four transverse cutters 145 in total) is vertically arranged at the blade end of each main cutter 140, and a rectangular space (not shown in the figure, and has the functions of air relief and deburring) is reserved between each transverse cutter 145 and the corresponding main cutter 140;

each sliding sleeve 143 and the sliding vertical plate 138 sleeved with each sliding sleeve form a sliding pair; an opening groove at the inner side of each sliding sleeve 143 and the main cutter 140 sleeved with each sliding sleeve form a sliding pair; the sliding plate 135, all the sliding columns 136 and the sliding vertical plates 138 form a sliding pair;

the first unqualified blanking unit 177 and the second unqualified blanking unit 179 have the same structure, a first pin hole 141 is formed between a pair of first pins 174 of respective third push plates 137, a first hydraulic cylinder 133 piston rod respectively passes through a second hydraulic cylinder 150, a fixed plate 134 and a sliding plate 135, the end of the piston rod is hinged with the first pin hole 141 by a first fixed pin (two third push plates 137 synchronously move), the lower end of each third push plate 137 respectively faces a guide groove 173 of a main cutter 140, and the tail end of the cutting edge of each main cutter 140 is vertically provided with a transverse cutter 145;

the first qualified blanking unit 178 and the second qualified blanking unit 180 are consistent in structure, a second pin hole 142 is formed between a pair of second pins 175 of the respective four pushing plates 148, after a piston rod of the hydraulic cylinder 150 respectively penetrates through the fixed plate 134 and the sliding plate 135, the end of the piston rod of the hydraulic cylinder 150 is hinged with the second pin hole 142 downwards by a second fixing pin (two four pushing plates 148 synchronously act), the lower end of each four pushing plate 148 respectively faces a guide groove 173 of one main cutter 140, and the tail end of the cutting edge of each main cutter 140 is vertically provided with one transverse cutter 145;

a first secondary product discharge groove 151, a first qualified discharge groove 149, a second secondary product discharge groove 159 and a second qualified discharge groove 158 are respectively formed in the fixed die holder 152 corresponding to the four sections, the opening edges of the four discharge grooves are respectively and fixedly provided with a fixed cutter 146, the tail end of the cutting edge of each fixed cutter 146 is transversely provided with a transverse cutting edge 153, each fixed cutter 146 is opposite to one main cutter 140 at intervals, and each transverse cutting edge 153 is opposite to one transverse cutter 145 at intervals; the cross-cutting blade 145 cooperates with the cross-cutting blade 153 to cut off the excess portion of the double gold material strip 15 at the edge of the feed hole 31; the space between the four fixed cutters 146 and the four main cutters 140 is called as a double-gold-strip channel 162;

the discharge end of the shoulder part of each main cutter 140 is provided with an abdicating groove 161, the abdicating groove 161 where the first qualified blanking unit 178 and the second qualified blanking unit 180 are respectively provided with one thin push rod 139 (two thin push rods 139 in total), the tail end of each thin push rod 139 is fixedly connected with the sliding plate 135, the other end of each thin push rod 139 is a step push rod 144, and a step cylinder is arranged at the junction of the step push rod 144 and the thin push rod 139; the stepped cylinder is close to the abdicating groove 161 of the main cutter 140 and is used for pushing the main cutter 140 to move (the function of the stepped push rod 144 is to discharge qualified bimetallic strip to the qualified discharge groove 149 and drive the transverse cutter 145 to cut the scrap edge of the bimetallic strip); the two step push rods 144 are respectively opposite to the inlet of the first qualified discharge chute 149 and the inlet of the second qualified discharge chute 158;

the shoulder feeding side and the shoulder discharging side of each main cutter 140 are respectively provided with a photoelectric detection device for detecting the surface quality of the material of the bimetallic strip 15 in the respective irradiation range, in the embodiment, all the photoelectric detection devices adopt a light color screen 163, each light color screen 163 is in a square ring shape, each light color screen 163 consists of a plurality of light receiving electron tubes and a color light emitting electron tube, the color light electron tubes emit color light towards the bimetallic strip, the qualified bimetallic strip can generate a certain high area reflectivity, the unqualified bimetallic strip can generate a certain low area reflectivity, and whether the bimetallic strip is qualified is judged according to the light color electron tubes;

the main cutters 140 of the first unqualified blanking unit 177 and the main cutters 140 of the first qualified blanking unit 178 are connected into a group, and the pair of main cutters 140 is in clamping connection with the sliding sleeve 143 on the first qualified blanking unit 178; the main cutters 140 of the second unqualified blanking unit 179 and the main cutters 140 of the second qualified blanking unit 180 are connected into a group, and the structure is the same as that of the former group; the second hydraulic cylinder 150 drives a pair of thin push rods 139 to drive the step cylinders to press in a first stroke, and the two thin push rods are connected into a whole to facilitate simultaneous action.

The cutting edge of the main cutter 140 is 1.2-1.3 times of the length of the bimetal, and the cutting edge of the transverse cutter 145 is 1.2-1.5 times of the width of the bimetal; the two qualified discharge chutes are both set to be 1.2-1.5 times of the length and the width of the bimetal, the two defective discharge chutes are both set to be 1 time of the length of the bimetal, and the unqualified blanking is cut off according to the width of 0.2 time of the bimetal, so that the length of a defective material belt of 1/5 is cut off at most every time, and the waste of materials is reduced to the maximum extent.

When the device works, the double-gold material belt 15 enters the double-gold material belt channel 162 in a vertical state according to a fixed length, the pair of light color curtains 163 on the two sides of the shoulder of the main cutter 140 continuously detect the double-gold material belt 15 within the irradiation range, and according to the detection results of the double-gold material belt 15 in the above-mentioned assumed four sections, there are several corresponding control modes as follows:

in the condition 1, if the double-gold material belt 15 in the section a is detected to be unqualified, the detection is divided into two cases, the single-side (feeding side) light color curtain 163 is detected to be unqualified, and the unqualified single piece is directly blanked by the first unqualified blanking unit 177; if the light curtain 163 on both sides (the feeding side and the discharging side) is detected as being unqualified, the unqualified bimetallic strip 15 on the section is directly moved to the section C with a fixed length, and the unqualified single piece is blanked by the second unqualified blanking unit 179.

The process is implemented by a first unqualified blanking unit 177 and a second unqualified blanking unit 179 respectively, a first stroke of a hydraulic cylinder 133 controls a transverse cutter 145 to be matched with a transverse cutter edge 153 to blank the edge scraps, a second stroke of the hydraulic cylinder 133 drives a third push plate 137, a main cutter 140 is matched with a fixed cutter 146 to blank unqualified single pieces, and the unqualified single pieces fall into respective defective product discharge chutes to be discharged (not shown in the figure).

When the light color curtain 163 on the feeding side detects that the bimetallic strip 15 is qualified, the bimetallic strip 15 is continuously pushed and detected for 5 times (1 time of travel in total, just one bimetallic dimension), the four pushing plates 148 of the first qualified blanking unit 178 extend forward, and the main cutter 140 is matched with the fixed cutter 146 to complete the blanking of the qualified bimetallic strip.

In the state 2, if the double-gold material belt 15 in the section a is qualified through detection, the two conditions are divided into two conditions, the single-side light color curtain 163 is qualified through photoelectric color tracking detection, and a qualified single piece is driven and blanked through the first qualified blanking unit 178; the two-sided light curtain 163 detects and is qualified, then two gold manipulator 88 automatic adjustment two gold material areas 15 are the transport stroke of once carrying two specification widths, just are the size of two gold, and its detailed action process is:

firstly, the double-gold manipulator 88 pushes the double-gold material belt 15 to move to a section D in a fixed length manner, a second qualified blanking unit 180 drives a qualified single piece to be blanked, a first hydraulic cylinder 133 does not work (the first hydraulic cylinder 133 drives unqualified products to be blanked, so qualified products are blanked, the second hydraulic cylinder 150 does not work), a first stroke drives a pair of thin push rods 139 to drive step cylinders to be jacked, a first unqualified blanking unit 177 and a main cutter 140 on the first qualified blanking unit 178 are pushed (a larger step cylinder is arranged between the pair of thin push rods 139 and the step push rods 144, the main cutters 140 in the two components can be just pushed downwards to be stamped at the same time), and a transverse cutter 145 and a transverse cutter 153 are matched with each other to cut off the waste edges (cut burrs); the unqualified bimetallic and scrap edges (cut burrs) of the first unqualified blanking unit 177 are discharged from the first product discharge groove 151; the second unqualified blanking unit 179 blanks unqualified waste edges and discharges the waste edges from the second product discharge groove 159;

then, the qualified bimetallic strip 15 with the waste edges removed is moved to a section B or a section D in a fixed length mode, the first qualified blanking unit 178 and the second qualified blanking unit 180 act, the second stroke of the hydraulic cylinder II 150 controls the two push plates IV 148 to jump into the guide grooves 173 of the main cutters 140 which are opposite to each other for stamping, and each main cutter 140 is matched with the corresponding fixed cutter 146 for blanking to obtain qualified bimetallic single pieces; finally, the second stroke of the second hydraulic cylinder 150 continues to drive the pair of the thin push rods 139 and the step push rod 144, and then the qualified bimetallic strip is pushed to enter the corresponding qualified discharge chute for discharging.

If the front and rear sections are qualified, the step push rod 144 pushes the sheared bimetallic strip into the first qualified discharge chute 149, and the bimetallic strip is accessed from the bimetallic strip storage tank 42 in the bimetallic jacking assembly 7, as shown in fig. 8; meanwhile, the step push rod 144 pushes the sheared bimetallic strip into the second qualified discharge chute 158, and then the bimetallic strip is accessed from the other bimetallic strip storage tank 42 in the bimetallic jacking assembly 7; see fig. 8. (the unqualified product blanking and the qualified blanking are both in the same station, and the selection is determined according to the detection result of the light color curtain 163. the method directly punches and sorts the defective product strips, and then the qualified bimetal is left for subsequent punching and welding, so that the qualified rate of finished products is obviously reduced, which is an innovation point of the method and is not available in the prior art). Therefore, according to the qualified situation of the bimetallic strip 15, at most two qualified bimetallic strips can be obtained by one-time blanking, i.e. one-time blanking.

And 3, if the section A is qualified and the section B is unqualified, blanking at the same time.

In the condition 4, if the A, B sections are detected to be qualified, the A, B section material belt is moved to the C, D section, the transverse cutting knife 145 and the transverse cutting blade 153 are matched to detect the blanking edge waste in the A, C section, and two qualified single pieces are blanked in the B, D section respectively; B. directly discharging materials after the D section is blanked, discharging qualified duplex metal material belts 15 of the C section, moving qualified duplex metal material belts 15 of the A section to the C section, discharging qualified duplex metal material belts of the C section, and discharging qualified material belts of the C section in the D section; and directly blanking the section B, and waiting for circular discharging according to the previous procedure when the section B is qualified.

The first unqualified blanking unit 177 discharges unqualified bimetallic strips and redundant parts (burrs) blanked in the section A from the first product discharge groove 151 (the waste materials of the first unit are discharged from the first unqualified blanking unit); the second defective blanking unit 179 and the first defective blanking unit 178, i.e., the defective double metal and the excess portion (burr) of the B and C sections, are discharged from the second secondary product discharge chute 159 (from which the scrap of the second unit is discharged).

In case 5, if A, B, C, D all four gold tapes 15 are qualified, when there is no material in sections C and D, section A, B is moved directly to section C, D in two steps; the material belt is always ensured in the section A, B, C, D, two qualified single pieces are directly punched in the section B, D, the section C is only left to be matched with the cross cutter 145 and the cross cutter edge 153 to detect the punched edge waste materials to be qualified products, and the circular discharge is waited according to the previous procedure.

In short, no matter whether the detection result of the light and color curtain 163 is qualified or unqualified, the main cutter 140 of the first unqualified punching unit 177, the main cutter 140 of the first qualified punching unit 178, the main cutter 140 of the second unqualified punching unit 179, and the cross cutter 145 of the main cutter 140 of the second qualified punching unit 180 (four units all cut waste edges in this way), the piston rod of the hydraulic cylinder two 150 drives the pair of thin push rods 139, the pair of thin push rods 139 with the step cylinder pushes the main cutter 140 to drive the cross cutter 145, and presses the redundant part (burr cutting) of the edge of the bimetallic strip 15, and cuts the redundant part (burr cutting) of the edge of the fixed cutter 146 in cooperation with the cross cutter 153 of the fixed cutter 146, and cuts off the redundant part (burr cutting, there are only two thin push rods 139 in total, and one thin push rod 139 controls the two units to do.

Referring to fig. 6, 7 and 8, the run-on plate layout area 36 inside the press-welding mold 2 is divided into an upper mold part and a lower mold part, and is specifically arranged,

the upper die part is sequentially provided with a pair of punching needles 43, a trimming and blanking upper die insert I49, a trimming and blanking upper die insert II 55, an upper die primary bending 58, an upper die secondary bending 64 and a trimming and blanking upper die insert III 72 at intervals from the input end to the output end (from left to right in fig. 7); when in work, the upper die part downwards passes through the through space between the pair of pressing and pressing strips 26 and the guide groove in the upper stripper plate 27,

the upper die insert I49 is formed by assembling a T-shaped knife edge I53 and a T-shaped block I52, the T-shaped block I52 is upwards fixedly connected with the upper die plate 25, and the T-shaped knife edge I53 is downwards arranged; the upper die insert II 55 is formed by assembling a T-shaped knife edge II 54 and a T-shaped block II 56, the T-shaped block II 56 is fixedly connected with the upper die plate 25 upwards, and the T-shaped knife edge II 54 is arranged downwards; a T-shaped block III 155 of the upper die primary bending 58 is upwards fixedly connected with the upper die plate 25, and the lower edge of the T-shaped block III is provided with a first inclined edge 59, a first straight edge 60 and a second straight edge 61; a T-shaped block IV of the upper die secondary bending 64 is fixedly connected with the upper die plate 25 upwards, and a straight edge III 67, a V-shaped edge 66 and a straight edge VI 65 are arranged on the lower edge of the T-shaped block IV; the upper die insert III 72 is formed by assembling a T-shaped knife edge V73 and a T-shaped block V74, the T-shaped block V74 is fixedly connected with the upper die plate 25, and the T-shaped knife edge V73 is arranged downwards;

the lower die parts are all fixedly arranged on the upper surface of the lower die base plate 29 (when in operation, the lower die parts upwards penetrate through all through grooves of the lower die plate 30), a pair of punching inserts 48, a first trimming and blanking lower die insert 50, a second trimming and blanking lower die insert 57, a first lower die bending 62, a second lower die bending 69, a third trimming and blanking lower die insert 75 and a plurality of pairs of floating nails 44 (6 pairs of floating nails 44 are shown in figure 7, and the actual number is set according to the requirement) are sequentially arranged at intervals from the input end to the output end (from left to right in figure 7),

each pair of floating nails 44 is upward opposite to a pair of square chutes of the upper die cushion plate 24; a bayonet sliding groove 45 is arranged at the upper part of each floating nail 44, a spring 46 is arranged below each floating nail 44, each spring 46 is sleeved on one push rod 47, and the bayonet sliding grooves 45 of the floating nails 44 float along the push rods 47 under the action of the springs 46 (two edges of the run-on plate material belt 9 slide forwards in a straight line under the supporting and limiting action of the bayonet sliding grooves 45 at two sides, so the bayonet sliding grooves 45 play the roles of floating support and sliding rail together); the pair of punching inserts 48 is upward opposite to a pair of punching needles 43 on the upper template 25 and is used for punching the arc striking plate material belt 9; the first lower die insert 50 is upwards opposite to the first upper die insert 49, the first lower die insert 50 is formed by assembling a T-shaped notch six 51 and a T-shaped block six, the T-shaped block six is fixedly connected with the lower die base plate 29, and the T-shaped notch six 51 is upwards aligned with the edge or edge of the T-shaped notch one 53 to form a shearing pair; the lower die insert II 57 faces the upper die insert II 55 upwards, the lower die insert II 57 is formed by assembling a T-shaped knife edge seven and a T-shaped block seven, and the T-shaped knife edge seven faces upwards and faces a knife edge or a knife edge of the T-shaped knife edge II 54; the lower die primary bend 62 is opposite to the upper die primary bend 58, a U-shaped block of the lower die primary bend 62 is fixedly connected with the lower die base plate 29, the upper edge of the U-shaped block is provided with a second oblique edge 63 and a fifth straight edge 157, and a first oblique edge 59, a first straight edge 60 and a second straight edge 61 on a third T-shaped block 155 of the upper die primary bend 58 are opposite to a v-shaped groove formed by the fifth straight edge 157 and the second oblique edge 63 on the lower die primary bend 62; the lower die secondary bend 69 is opposite to the upper die secondary bend 64, a T-shaped block eight 71 of the lower die secondary bend 69 is fixedly connected with the lower die base plate 29, an oblique V-shaped groove 156 is formed in the T-shaped block eight 71, a straight edge four 70 and an oblique edge three 68 are respectively arranged at the upper part of the oblique V-shaped groove 156, a straight edge three 67, a V edge 66 and a straight edge six 65 on the T-shaped block four of the upper die secondary bend 64 are opposite to an oblique edge three 68, a V-shaped groove 156 and a straight edge four 70 on the T-shaped block eight 71 on the lower die secondary bend 69; the third lower die insert 75 is opposite to the third upper die insert 72, the third lower die insert 75 is formed by assembling a T-shaped knife edge nine and a T-shaped block nine, the T-shaped block nine is fixedly connected with the lower die cushion plate 29, and a T-shaped knife edge five 73 of the third upper die insert 72 is opposite to a knife edge or a knife edge of the third lower die insert 75;

in addition, two pairs of bows 154, which are fixedly connected to the upper die plate 25, extend into the space between the upper and lower die portions.

Referring to fig. 6 and 8, the arc striking plate feeding assembly 3 is structurally characterized by comprising an arc striking plate coil feeding assembly, a plurality of groups of bayonet chutes 45 and an arc striking plate manipulator 87; the structure of the double-gold feeding component 4 is that the double-gold coil feeding component comprises a double-gold coil discharging component, a double-gold conveying channel 33 and a double-gold manipulator 88,

the structure of the dual-gold feeding assembly 4 is explained as an example,

the structure of the double-gold coil discharging assembly is that the double-gold coil discharging assembly comprises a coil mounting disc, a brake frame and a driving stepping motor which are arranged on a rotating shaft frame, wherein a coil of a double-gold material belt 15 is mounted on the coil mounting disc, and the double-gold material belt 15 is led out from the coil and enters a vertically arranged double-gold conveying channel 33;

the structure of the double-gold conveying channel 33 is that the double-gold conveying channel comprises a guide conveying plate 117 and a groove plate 120 which are fixed into a whole, a U-shaped opening 114 of the groove plate 120 is opened towards the outside, a plurality of groups of single rollers and double rollers are arranged in the upper plate of the U-shaped opening 114 at intervals, and the groove plate 120 and all roller shafts are fixed on the guide conveying plate 117; wherein, the clearance between the plurality of single rollers two 119 and the bottom plate of the U-shaped opening 114 is minimum, and the single rollers one 118, the double rollers one 115 and the double rollers two 116 are arranged at the position which is only close to the bottom plate of the U-shaped opening 114; the installation clearance from the bottom plate of the U-shaped opening 114 is sequentially a double-roller I115, a double-roller II 116, a single-roller I118 and a first single-roller II 119 close to the single-roller I118 from large to small, and the clearances from other single-roller II 119 to the bottom plate of the U-shaped opening 114 are 1.2-1.5 times of the thickness value (unit mm) of a single-layer coil stock.

The double-gold manipulator 88 is arranged at the input end of the double-gold conveying channel 33, a square groove (not shown in fig. 8) is formed in the upper plate of the U-shaped opening 114 of the groove plate 120 opposite to the installation position of the double-gold manipulator 88, and a pair of step pins 113 of the double-gold manipulator 88 are horizontally inserted into the conveying holes 31 of the double-gold strip 15 to convey the double-gold strip 15 in a stepping mode. The bimetallic jacking assembly 7 is arranged at the output end of the bimetallic conveying channel 33.

Referring to fig. 9, the double-gold manipulator 88 has a structure that the double-gold manipulator comprises a horizontally pushed cylinder II 102, the cylinder II 102 is in transmission connection with a push plate I104 through an active joint 105, the push plate I104 is slidably sleeved in a clamping groove of an F-shaped sliding seat 103 to realize front and back movement, the other end of the push plate I104 is fixed with a connecting plate 106 into a whole, and the connecting plate 106 is fixed with a vertical F-shaped sliding plate 107 into a whole; two sides of the sliding groove on the front surface of the vertical F-shaped sliding plate 107 are provided with baffle plates 108, a sliding block 110 is arranged in the sliding groove on the front surface of the vertical F-shaped sliding plate 107, the front surface of the sliding block 110 is fixed with a second push plate 112, and the lower end of the second push plate 112 is provided with a pair of step bolts 113; the upper end of the sliding block 110 is in transmission connection with a cylinder III 109 which is vertically pushed through a movable connecting seat 111, and the cylinder III 109 is fixed on the upper part of the vertical F-shaped sliding plate 107.

The arc striking plate manipulator 87 and the double-gold manipulator 88 are arranged side by side, the arc striking plate manipulator 87 and the double-gold manipulator 88 are similar in structure, and the only difference is that a connecting plate 106 of the double-gold manipulator 88 is connected and fixed with the side surface of the vertical F-shaped sliding plate 107 into a whole, and the connecting plate 106 of the arc striking plate manipulator 87 is connected and fixed with the back surface of the vertical F-shaped sliding plate 107 into a whole; the double-gold manipulator 88 adopts a two-axis cylinder conveying mode to convey the double-gold material belt 15, and the arc striking plate manipulator 87 adopts a two-axis cylinder conveying mode to convey the arc striking plate material belt 9.

It can be seen that the structure of the run-on plate feeding assembly 3 is similar to that of the double-metal feeding assembly 4, and the difference between the run-on plate feeding assembly 3 and the double-metal feeding assembly 4 is that a pair of step bolts 113 in the run-on plate manipulator 87 of the run-on plate feeding assembly 3 are arranged side by side and inserted into the circular punched holes 11 at two sides of the run-on plate material belt 9 to be conveyed forwards; a pair of step bolts 113 in the double-gold manipulator 88 of the double-gold feeding assembly 4 are arranged in front and back and inserted into the single-side conveying holes 31 of the double-gold material belt 15 to convey forwards (the double-gold material belt 15 utilizes the bottom plate of the U-shaped opening 114 of the groove plate 120 and the gaps between the double-roller I115, the double-roller II 116, the single-roller I118 and the multiple groups of single-roller II 119, the cylinder III 109 on the double-gold manipulator 88 drives the pair of step bolts 113 to horizontally extend out and to be inserted into the conveying holes 31 of the double-gold material belt 15 through the square groove of the U-shaped opening 114 of the groove plate 120, and then the cylinder II 102 drives the pair of step bolts 113 to drive the double-gold material belt 15 to realize the forward conveying in fixed.

Referring to fig. 3, 6 and 8, the horizontal welding assembly 5 has a structure including a suspension plate 100, the suspension plate 100 is fixed to a lower edge (right end in fig. 8) of one end of the upper mold plate 25, a vertical plate 99 is fixed to a lower edge of an outer end of the suspension plate 100, and a first cylinder 101 is fixed to an outer side of the vertical plate 99; a linear sliding pair 97 is fixed on the inner side of the vertical plate 99, a sliding frame 96 is sleeved on the linear sliding pair 97, the sliding frame 96 is in transmission connection with a cylinder rod 98 of a first cylinder 101, the linear sliding pair 97 and the sliding frame 96 jointly form a sliding pair, and a pair of electrodes 95 is arranged on the lower portion of the outer side of the sliding frame 96, so that the first cylinder 101 drives the electrodes 95 to extend forwards.

During welding, the convex tip 127 of the vertical welding assembly 89 presses the secondary bending part downwards into the secondary bending output groove 81 of the lower template 30, the convex electrodes 129 on the pair of correction blocks 126 in the vertical welding assembly 89 press the welding point 39 of the arc striking plate 19, the first air cylinder 101 in the horizontal welding assembly 5 drives the pair of electrodes 95 to press the welding surface 32 of the bimetal 17, and after the pressing is firm, the electric welding is carried out.

Referring to fig. 8, the double-gold jacking assembly 7 includes a multi-stroke pushing-up cylinder 94, a cylinder body of the pushing-up cylinder 94 is fixed on a lower plate 91, a cylinder rod of the pushing-up cylinder 94 is upward fixedly connected with a supporting plate 92, the supporting plate 92 is provided with a guide plate 41 and a guide rod 93 at intervals side by side, the upper end of the guide plate 41 is provided with a first double-gold storage tank 42, the upper end of the guide rod 93 is provided with a second double-gold storage tank 42, the two double-gold storage tanks 42 simultaneously lift double gold and position the double gold, and simultaneously, one-to-one corresponding welding of the double gold and two arc striking plates is realized. (two finished products are stamped and welded at one time by adopting double electrodes, the problems of welding and stamping efficiency, welding cooling, service life and the like are solved, and the invention is the core innovation point).

If the structural arrangement of each mechanism is not described in detail, the mechanism is implemented by matching related equipment in the prior art. The mechanisms and the action parts thereof are in signal connection with the master controller, work coordinately and consistently, and complete automatic in-mold punching and welding assembly of the arc striking plate and the bimetal.

The working process of the system is implemented according to the following steps:

step 1, feeding an arc ignition plate 19 along bayonet chutes 45 of two rows of floating nails 44 in a horizontal posture along with an arc ignition plate material belt 9, feeding a bimetal 17 along a bimetal conveying channel 33 in a vertical posture along with a bimetal material belt 15, namely synchronously inputting the arc ignition plate material belt 9 and the bimetal material belt 15 into a stamping and welding mould 2 in a posture of 90 degrees, wherein the arrow direction of an X axis is a feeding advancing direction,

the arc starting plate material belt 9 enters a first station 10 to carry out circular punching 11 operation, and the first station 10 corresponds to a punching groove 90 on the lower template 30; the punching insert 48 is upwards matched with a pair of punching needles 43 on the upper template 25 to obtain two round punched holes 11, the two round punched holes 11 are used as traction holes for the arc striking plate manipulator 87 to convey the arc striking plate material belt 9,

meanwhile, the double gold robot 88 inserts into the feeding hole 31 of the double gold strip 15 to vertically feed the double gold strip 15 to the first auxiliary station 20 along the double gold feeding path 33.

And 2, the arc striking plate manipulator 87 step-conveys the arc striking plate material belt 9 to a positioning groove 83 corresponding to the second station 21 according to fixed-length step pitch, stops, starts jack positioning and edge cutting, removes oxidized burrs of the arc striking plate material belt 9, and cuts the burrs through a pair of cutting knives (the operation positions are the positioning grooves 83) of the lower die insert I50 and the upper die insert I49.

Step 3, the arc striking plate manipulator 87 further conveys the arc striking plate material belt 9 forwards step by step according to a fixed-length step pitch, and the arc striking plate material belt is conveyed to the blanking groove 82 of the third station 12 to stop; the third station 12 is an edge punching step, and punches the y-direction cutting seam 38 of the striking arc plate material belt 9 to obtain a template with the width and the length required by a single striking arc plate, the third station 12 corresponds to the blanking groove 82 on the lower template 30, the upper die insert two 55 and the lower die insert two 57 are arranged up and down, and the cutting seam operation is completed by using a pair of cutting knives (the operation position is the blanking groove 82).

Step 4, the arc striking plate manipulator 87 step-conveys the arc striking plate material belt 9 according to fixed-length step pitch, and conveys the arc striking plate material belt to the fourth station 13 to stop; the fourth station 13 corresponds to the primary bending groove 79 and the primary bending output groove 78; the upper die primary bend 58 and the lower die primary bend 62 are arranged up and down, and are punched and bent by the bevel edge two 63 and the bevel edge one 59 (the operation position is a primary bending groove 79), so that the punching operation of primary bending is completed.

Step 5, the arc striking plate manipulator 87 step-conveys the arc striking plate material belt 9 according to fixed length step pitch, and the bent arc striking plate material belt 9 reaches the secondary bending groove 80 of the fifth station 14 (the operation track of the primary bending semi-finished product is the secondary bending groove 80) to stop; the fifth station 14 is used for punching and secondary bending, and the fifth station 14 corresponds to the secondary bending groove 80 and the secondary bending output groove 81; the upper die secondary bending 64 and the lower die secondary bending 69 are arranged up and down, and the V-shaped edge 66 and the bevel V-shaped groove 156 are used for punching and bending (the secondary bending groove 80 at the operation position);

the arc striking plate manipulator 87 then conveys the arc striking plate material belt 9 step by step according to a fixed length step pitch, and the arc striking plate material belt 9 which is bent for the second time is conveyed to the sixth station 18 by a fixed step pitch forwards along the V-shaped track of the secondary bending output groove 81 to stop;

simultaneously with the operation of the arc striking plate material belt 9 in the steps 1 to 5, a pair of step bolts 113 on the double-gold manipulator 88 are inserted into the conveying holes 31 of the double-gold material belt 15, and the double-gold material belt 15 moves forwards to the first auxiliary station 20 along the U-shaped opening 114, the single roller two 119, the double roller one 115 and the double roller two 116 in the double-gold feeding assembly 4; the bimetal blanking mechanism 6 carries out identification processing according to the detection result, and completely cuts off the bimetal 17 and the bimetal strip 15 to form a single part of the bimetal 17 (the outer edge with the conveying hole 31 is cut off, and is shown in fig. 5);

the single piece of bimetal 17 falls into the pair of bimetal storage tanks 42 of the bimetal jacking assembly 7, the pair of bimetal in the pair of bimetal storage tanks 42 is lifted by the upward pushing air cylinder 94 on the bimetal jacking assembly 7, the pair of bimetal in the pair of bimetal storage tanks 42 is lifted to the sixth station 18, the vertical welding assembly 89 is lifted to position and press the front ends of the pair of arc striking plates 19, so that the pair of bimetal 17 and the arc striking plates 19 are bent and aligned at one time, the two bimetal 17 lifted in place and the front ends of the two arc striking plates 19 are respectively correspondingly and tightly, and the corresponding welding of the two bimetal 17 and the respective arc striking plates 19 can be conveniently and synchronously completed subsequently.

Step 6, performing one-time bending of the two arc striking plates 19 and welding of the double metals at a seventh station 18, and performing electrified pressurization welding forming on the arc striking plates and the double metals by matching the vertical welding assembly 89 and the horizontal welding assembly 5; before each welding, the head and the rod of the electrode 95 at the front end of the horizontal welding component 5 are both contracted in the box body circulating conductive liquid arranged at the right end of the lower template 30 for cooling (the innovation point of the invention), the cooling conductive liquid is adhered to the head of the electrode 95, so that the welding spatter of the bimetal can be effectively eliminated, the electrode 95 is cooled in time after each welding, the electrode 95 is kept at normal temperature before being welded again, and the service life of the electrode is greatly prolonged; after the convex electrode 129 of the vertical welding assembly 89 is welded, refrigerating fluid is introduced into the electrode seat for cooling, so that the service life of the electrode is prolonged;

after the welding is finished, the arc starting plate and the punching welding semi-finished product of the dual-metal are conveyed to the eighth station 40 by the arc starting plate material belt 9 along the secondary bending output groove 81 in a forward fixed-step distance and stopped.

Step 7, blanking the tail end of the arc striking plate in the punching and welding semi-finished product at an eighth station 40, arranging an upper die insert III 72 and a lower die insert III 75 up and down, and finishing blanking through opposite cutting knives; separating the punching and welding semi-finished product from the waste strip to obtain a complete punching and welding finished product, inputting the punching and welding finished product into a finished product storage tank through a finished product collecting tank 84 by a discharging component, and enabling the waste strip to enter a waste material tank through a waste product collecting tank 85;

and (3) finishing the processing and manufacturing of one-time two-piece (one piece and two pieces) punching and welding finished products, circulating the steps, and repeating the steps 1 to 7 to realize the flow operation of the automatic punching and welding molding of the arc striking plate and the bimetal in the die of the low-voltage electric appliance.

Claims

1. The utility model provides a full-automatic punching welding equipment of low-voltage apparatus run-on plate and two gold which characterized in that: a stamping and welding die (2) is arranged on the main rack (1), and an arc striking plate feeding assembly (3) and a bimetal feeding assembly (4) are arranged on the auxiliary rack (8); a horizontal welding component (5) and a vertical welding component (89) which are matched with each other are arranged at the outlet end of the punching and welding mould (2); a bimetallic blanking mechanism (6) and a bimetallic jacking assembly (7) are arranged below the horizontal welding assembly (5);

the structure of the double-gold jacking assembly (7) is that the double-gold jacking assembly comprises an upward pushing cylinder (94), a cylinder body of the upward pushing cylinder (94) is fixed on a lower plate (91), a cylinder rod of the upward pushing cylinder (94) is fixedly connected with a supporting plate (92), a guide plate (41) and a guide rod (93) are arranged on the supporting plate (92) side by side at intervals, a first double-gold storage groove (42) is formed in the upper end of the guide plate (41), and a second double-gold storage groove (42) is formed in the upper end of the guide rod (93).

2. The full-automatic punching and welding equipment for the arc striking plate and the bimetal of the low-voltage apparatus according to claim 1, characterized in that: the structure of the punching and welding die (2) is that the punching and welding die comprises a lower die seat (28) and an upper die seat (23), wherein the lower die seat (28) is fixedly connected with a base (173) at the lower part of the main rack (1) through a lower pad foot, and the upper die seat (23) is fixedly connected with the upper part of the main rack (1) through an upper pad foot; the upper surface of the lower die base (28) is provided with a lower die base plate (29), the upper surface of the lower die base plate (29) is provided with a lower die plate (30), the lower die plate (30) is provided with upper stripper plates (27) at intervals upwards, the upper stripper plates (27) are connected with an upper die plate (25) at intervals, the upper die plate (25) is fixed with an upper die base plate (24) and an upper die base (23) into a whole upwards, and a die handle (22) is arranged at the position, close to the middle, of the upper die base (23); the lower die holder (28) is in sliding sleeve joint with the upper die holder (23); two pairs of catapult glue (154) are arranged on the lower surface of the upper template (25), a pair of pressing pressure strips (26) are arranged on the upper surface of the upper stripper plate (27), the pair of pressing pressure strips (26) are perpendicular to the projection line of the horizontal welding component (5), and a section of through groove is formed between the pair of pressing pressure strips (26) and is called as a pressing groove.

3. The full-automatic punching and welding equipment for the arc striking plate and the bimetal of the low-voltage apparatus according to claim 2, characterized in that: the double-gold blanking mechanism (6) is positioned on a step plate at the output end of the lower die holder (28), and the double-gold blanking mechanism (6) comprises a fixed plate (134) and a fixed die holder (152), wherein the fixed plate (134) and the side vertical surface (171) of the fixed die holder (152) are correspondingly fixed on the bottom surface and the side surface of the square groove (172); four sliding columns (136) are fixedly arranged between the fixed plate (134) and the fixed die holder (152), a sliding plate (135) is sleeved on the four sliding columns (136) together, and the sliding plate (135) slides forwards and backwards along the sliding columns (136);

four blanking units are arranged between the fixed plate (134) and the fixed die holder (152) along the feeding direction and are respectively called as a first unqualified blanking unit (177), a first qualified blanking unit (178), a second unqualified blanking unit (179) and a second qualified blanking unit (180); the first unqualified blanking unit (177) and the second unqualified blanking unit (179) are in driving connection with the multi-stroke hydraulic cylinder I (133), the first qualified blanking unit (178) and the second qualified blanking unit (180) are in driving connection with the multi-stroke hydraulic cylinder II (150), the cylinder body of the hydraulic cylinder II (150) is installed on the fixing plate (134), and the cylinder body of the hydraulic cylinder I (133) is installed on the cylinder body of the hydraulic cylinder II (150);

the sliding plate (135) is fixedly connected with four pairs of sliding vertical plates (138), two third push plates (137) and two fourth push plates (148) are distributed between the four pairs of sliding vertical plates (138), the inner side of each sliding vertical plate (138) is in sliding connection with a U-shaped groove on the outer side of a sliding sleeve (143), a return spring is arranged in the U-shaped groove on the outer side of each sliding sleeve (143), the lower end of each return spring is arranged in a spring hole (176) in the shoulder of the fixed die holder (152), a main cutter (140) is clamped in the U-shaped groove on the inner side of each pair of sliding sleeves (143), and a limiting plate is arranged on the side surface of each; the tail end of the cutting edge of each main cutter (140) is vertically provided with a transverse cutter (145), and a rectangular space is reserved between each transverse cutter (145) and the corresponding main cutter (140).

4. The full-automatic punching and welding equipment for the arc striking plate and the bimetal of the low-voltage apparatus according to claim 3, characterized in that: the structure of the first unqualified blanking unit (177) is consistent with that of the second unqualified blanking unit (179), a first pin hole (141) is formed between a pair of first pins (174) of a third push plate (137) of each first hydraulic cylinder (133), the end of the piston rod downwards is hinged with the first pin hole (141) through a first fixed pin after the piston rod of the first hydraulic cylinder (133) respectively penetrates through a second hydraulic cylinder (150), a fixed plate (134) and a sliding plate (135), the lower end of each third push plate (137) is respectively opposite to a guide groove (173) of a main cutter (140), and the tail end of the cutting edge of each main cutter (140) is vertically provided with a transverse cutter (145);

the shoulder feeding side and the shoulder discharging side of each main cutter (140) are respectively provided with a photoelectric detection device.

5. The full-automatic punching and welding equipment for the arc striking plate and the bimetal of the low-voltage apparatus according to claim 3, characterized in that: the first qualified blanking unit (178) and the second qualified blanking unit (180) are consistent in structure, a second pin hole (142) is formed between a pair of second pins (175) of the respective four push plates (148), after a piston rod of the hydraulic cylinder (150) respectively penetrates through the fixed plate (134) and the sliding plate (135), the end of the piston rod of the hydraulic cylinder (150) is downwards hinged with the second pin hole (142) through the second fixing pin, the lower end of each four push plate (148) respectively faces a guide groove (173) of one main cutter (140), and the tail end of the cutting edge of each main cutter (140) is vertically provided with one transverse cutter (145).

6. The full-automatic punching and welding equipment for the arc striking plate and the bimetal of the low-voltage apparatus according to claim 3, characterized in that: a first secondary product discharge chute (151), a first qualified discharge chute (149), a second secondary product discharge chute (159) and a second qualified discharge chute (158) are respectively arranged in the fixed die holder (152) corresponding to the four sections, the opening edges of the four discharge chutes are respectively and fixedly provided with a fixed cutter (146), the tail end of the cutting edge of each fixed cutter (146) is transversely provided with a transverse cutting edge (153), each fixed cutter (146) is opposite to one main cutter (140) at intervals, and each transverse cutting edge (153) is opposite to one transverse cutter (145) at intervals; the space between the four fixed cutters (146) and the four main cutters (140) is called as a double-gold-strip channel (162).

7. The full-automatic punching and welding equipment for the arc striking plate and the bimetal of the low-voltage apparatus according to claim 3, characterized in that: the discharge end of the shoulder part of each main cutter (140) is provided with a yielding groove (161), the yielding grooves (161) where the first qualified blanking unit (178) and the second qualified blanking unit (180) are located are respectively provided with a thin push rod (139), the tail end of each thin push rod (139) is fixedly connected with a sliding plate (135), the other end of each thin push rod (139) is a step push rod (144), and a step cylinder is arranged at the junction of the step push rod (144) and the thin push rod (139); the stepped cylinder is adjacent to the abdicating groove (161) of the main cutter (140); the two step push rods (144) are respectively opposite to the inlet of the first qualified discharge chute (149) and the inlet of the second qualified discharge chute (158).

8. The full-automatic punching and welding equipment for the arc striking plate and the bimetal of the low-voltage apparatus according to claim 3, characterized in that: the main cutters (140) of the first unqualified blanking unit (177) and the main cutters (140) of the first qualified blanking unit (178) are connected into a group, and the pair of main cutters (140) is in clamping connection with the upper sliding sleeve (143) of the first qualified blanking unit (178); the main cutters (140) of the second unqualified blanking unit (179) and the main cutters (140) of the second qualified blanking unit (180) are connected into a group, and the structure of the group is the same as that of the previous group; the first stroke of the hydraulic cylinder II (150) drives a pair of thin push rods (139) to drive the step cylinders to be pressed, and the two hydraulic cylinders are connected into a whole and act simultaneously.

9. The full-automatic punching and welding equipment for the arc striking plate and the bimetal of the low-voltage apparatus according to claim 1, characterized in that: the run-on plate layout area inside the punching and welding mould (2) is divided into an upper mould part and a lower mould part, the specific arrangement mode is,

the upper die part is sequentially provided with a pair of punching needles (43), a first trimming and blanking upper die insert (49), a second trimming and blanking upper die insert (55), a first upper die bending (58), a second upper die bending (64) and a third trimming and blanking upper die insert (72) at intervals from the input end to the output end;

the lower die part is fixedly arranged on the upper surface of a lower die base plate (29), and a pair of punching inserts (48), a first trimming and blanking lower die insert (50), a second trimming and blanking lower die insert (57), a first lower die bending (62), a second lower die bending (69), a third trimming and blanking lower die insert (75) and a plurality of pairs of floating nails (44) are sequentially arranged from the input end to the output end at intervals;

in addition, two pairs of slingshot glue (154), fixedly attached to the upper platen (25), extend into the space between the upper and lower mold portions.