Automatic edge milling and flanging machine for metal composite plate

Abstract

The utility model discloses an automatic edge milling and flanging machine for a metal composite plate, which is characterized in that a conveying device for conveying the metal composite plate is arranged on a machine base, a pressing device is further arranged on the machine base and above the conveying device, the pressing device comprises a guide stand column, and a pressing seat is vertically arranged on the guide stand column in a lifting manner; a plurality of pressing roller sets are rotationally installed on the pressing base, a conveying channel is formed between the pressing roller sets and the conveying face of the conveying device, and a pressing base lifting adjusting mechanism for adjusting the height of the pressing base is arranged on the machine base. An edge milling device for milling the edge of the metal composite plate, a lower flanging device for flanging a side plate part of the edge of the metal composite plate upwards to form a vertical side plate part, an inner flanging device for flanging the vertical side plate part inwards and an outer flanging device for flanging the vertical side plate part outwards are sequentially arranged on the machine base in the conveying direction of the metal composite plate; according to the automatic edge milling and flanging mechanism, edge milling, vertical flanging and inward or outward flanging can be achieved in the conveying process of the metal composite plate, and therefore the automatic edge milling and flanging mechanism is suitable for different production processes.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal composite board production technical field especially relates to a kind of automatic edge milling flanging machine of metal composite board. BACKGROUND

[0002] Metal composite board is by multilayer material composite, upper and lower layer is high-purity aluminum alloy plate, middle is low-density polyethylene core plate, metal composite board weather resistance is good, strength is high, easy to maintain and plasticity is good, impact resistance, can reduce building load, and shock resistance is good;And metal composite board cannot produce larger area, thus need metal composite board to be assembled and welded, to improve the firmness of welding, it is necessary to mill edge to the edge of metal composite board to increase the welding area, and also need to be flanged to make two metal composite boards to cooperate, make assembly welding more firm.

[0003] Patent No. 201110257292.3 discloses a special milling power head for metal composite board edge trimming, comprising a connecting bracket, a rack, a speed regulating gearbox, a motor, a main shaft guide device, a compression spring, a limiting guide device and a round nose milling cutter disc set; the connecting bracket is connected to the rack by bolts, the main shaft guide device is welded to the rack, the motor is fixed to the speed regulating gearbox by bolts, and then the motor and the speed regulating gearbox are integrally installed on the main shaft guide device, the compression spring is sleeved on the lower part of the main shaft, and the round nose milling cutter disc set is installed on the lower end of the main shaft. When trimming the edge of the metal composite board, the round nose milling cutter disc set can only mill a thin layer, and the limiting guide device and the guide disc limit the sinking depth of the round nose milling cutter disc set, so that stable milling cannot be achieved. When the milling width exceeds the round nose milling cutter disc set, the milling efficiency will be poor.

[0004] And after milling, the plate is often transported to a specified flanging station for flanging, and the flanging station can only perform flanging on one side. When flanging in other directions is needed, the flanging station needs to be moved to another flanging station, increasing the complexity of processing and affecting production efficiency. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem of providing an automatic edge milling flanging machine for metal composite boards, which can mill, vertically flange and inwardly or outwardly flange the metal composite boards during conveying, thus being suitable for different production processes.

[0006] The utility model discloses a technical scheme for solving the above technical problems: an automatic edge milling and turning machine for metal composite plate, comprising a base, a conveying device for conveying the metal composite plate is arranged on the base, a pressing device for pressing the metal composite plate is further installed on the base above the conveying device, the pressing device comprises a guide column fixed on the base, a pressing seat is vertically and liftly installed on the guide column, a plurality of pressing roller groups are rotatably installed on the pressing seat, a conveying channel for the metal composite plate to pass through is formed between the pressing roller groups and the conveying surface of the conveying device, a pressing seat lifting adjusting mechanism for adjusting the height of the pressing seat is arranged on the base, a milling device for milling the edge of the metal composite plate, a lower turning device for turning the edge plate part of the metal composite plate upward to form a vertical edge plate part, an inner turning device for turning the vertical edge plate part inward, and an outer turning device for turning the vertical edge plate part outward are sequentially arranged on the base along the conveying direction of the metal composite plate;

[0007] The milling device comprises a first milling mechanism installed on the base and located on one side of the metal composite plate, the first milling mechanism comprises a first milling base installed on the base, a first milling lifting seat is vertically and liftly installed on the first milling base, a first milling height adjusting mechanism for adjusting the height of the first milling lifting seat is arranged on the first milling base, a first milling cutter driven to rotate by a first milling power head is fixedly installed on the first milling lifting seat, the first milling cutter rotates around a vertical rotation center line, and the first milling cutter contacts the upper part of the edge of the metal composite plate;

[0008] The lower turning device comprises a lower turning frame fixed on the base and located outside the composite plate, a plurality of lower mounting plates are arranged on the lower turning frame, a lower turning roller seat is fixedly installed on each lower mounting plate, a lower turning roller is rotatably installed on each lower turning roller seat, the center axis of the upstream lower turning roller at the most upstream is horizontally arranged, the center axis of the downstream lower turning roller at the most downstream is vertically arranged, and the center axis of the intermediate lower turning roller between the upstream lower turning roller and the downstream lower turning roller gradually increases according to the intersection angle between the conveying direction of the composite plate and the horizontal plane;

[0009] The inner turning device comprises an inner turning support laterally and slidably installed on the base and located outside the composite plate, an inner turning lateral adjusting mechanism for laterally adjusting the inner turning support is arranged on the base, and an inner turning roller group for conveniently pressing the vertical edge plate part of the composite plate inward is arranged on the inner turning support;

[0010] The outer flanging device comprises a lower outer flanging support transversely slidingly mounted on the machine base outside the composite plate, the machine base is provided with an outer flanging transverse adjusting mechanism for transversely adjusting the lower outer flanging support, at least two lower positioning rollers are rotatably mounted on the lower outer flanging support, the central axes of the lower positioning rollers are vertically arranged, an upper outer flanging support is mounted on the pressing seat by an upper outer flanging vertical adjusting mechanism, at least one horizontally arranged outer flanging extruding roller and at least one horizontally arranged outer flanging edge pressing roller are rotatably mounted on the upper outer flanging support, the outer flanging extruding roller is provided with a tapered extruding part at the outer side end thereof for extruding the vertical edge plate part from inside to outside, the outer flanging edge pressing roller is located downstream of the outer flanging extruding roller, and the outer flanging edge pressing roller extrudes the vertically turned outer edge plate part horizontally from top to bottom.

[0011] As a preferred scheme, the first edge milling base is transversely and horizontally slidingly mounted on the machine base, a first edge milling distance adjusting mechanism is arranged between the machine base and the first edge milling base, the first edge milling distance adjusting mechanism drives the first edge milling base to approach or move away from the edge of the metal composite plate, the first edge milling height adjusting mechanism comprises a first edge milling screw nut mechanism, the screw rod of the first edge milling screw nut mechanism is rotatably mounted on the first edge milling base and is provided with a first adjusting hand wheel, and the nut of the first edge milling screw nut mechanism is fixedly connected with the first edge milling lifting seat.

[0012] As a preferred scheme, the edge milling device further comprises a second edge milling mechanism, the second edge milling mechanism is arranged downstream of the first edge milling mechanism, the second edge milling mechanism comprises a second edge milling base transversely and horizontally slidingly mounted on the machine base, a second edge milling lifting seat is vertically and liftingly mounted on the second edge milling base, a second edge milling height adjusting mechanism for adjusting the height of the second edge milling lifting seat is arranged on the second edge milling base, a second edge milling cutter driven to rotate by a second edge milling power head is fixedly mounted on the second edge milling lifting seat, the second edge milling cutter rotates around a horizontal rotation center line, the second edge milling cutter performs secondary edge milling on the upper part of the edge of the metal composite plate, a second edge milling distance adjusting mechanism is arranged between the machine base and the second edge milling base, and the second edge milling distance adjusting mechanism drives the second edge milling base to approach or move away from the edge of the metal composite plate.

[0013] As a preferred scheme, the lower flanging frame comprises a lower horizontal fixing plate, an upper vertical fixing plate and a plurality of the lower mounting plates, the lower horizontal fixing plate is fixed on the base, the upper vertical fixing plate is fixed on the pressing seat through fixing bolts, the upper vertical fixing plate is provided with a plurality of vertically extending lower vertical strip-shaped holes, the fixing bolts are constrained in the lower vertical strip-shaped holes, the lower end of the lower mounting plate is fixedly connected with the lower horizontal fixing plate, the upper end of the lower mounting plate is fixedly connected with the upper vertical fixing plate, the lower mounting plate is an arc-shaped mounting plate, the lower flanging roller seat is provided with a sleeve hole sleeving the arc-shaped mounting plate, and the lower flanging roller seat is provided with a locking structure locking the lower flanging roller seat.

[0014] As a preferred scheme, the number of the intermediate lower flanging rollers is three, and the included angles between the central axes of the three intermediate lower flanging rollers and the horizontal plane are 22.5°, 45° and 67.5° respectively.

[0015] As a preferred scheme, the structure of the inner flanging support is the same as that of the lower flanging frame, the inner flanging roller group comprises an uppermost upstream inner flanging roller, a lowermost downstream inner flanging roller and at least two intermediate inner flanging rollers, the central axis of the upstream inner flanging roller is vertically arranged, the central axis of the downstream inner flanging roller is horizontally arranged, and the central axes of the intermediate inner flanging rollers gradually decrease according to the intersection angle between the conveying direction of the metal composite plate and the horizontal plane.

[0016] As a preferred scheme, each lower positioning roller is rotatably installed on a corresponding positioning roller seat, and each positioning roller seat is installed on the lower outer flanging support through a positioning lifting adjusting mechanism.

[0017] As a preferred scheme, the outer flanging extruding roller is installed on the upper outer flanging support through a horizontal adjusting structure.

[0018] As a preferred scheme, the horizontal adjusting structure comprises a central screw fixed on the upper outer flanging support and horizontally arranged, an adjusting sleeve screw-threaded on the central screw, the outer flanging extruding roller being rotatably installed on the adjusting sleeve, a screwing part being arranged at the outer side end of the adjusting sleeve and exposed from the outer flanging extruding roller, and a compression spring being arranged between the adjusting sleeve and the upper outer flanging support.

[0019] As a preferred scheme, the outer flanging edge-pressing roller is also installed on the upper outer flanging support through a horizontal adjusting structure.

[0020] The utility model discloses an effect is: because the automatic milling edge flanging machine of metal composite board, including frame, the conveying device of conveying metal composite board is set up on the frame, the compacting device for compacting the metal composite board is also installed on the frame above conveying device, the compacting device includes the guide column fixed on the frame, the compacting seat is vertically lifted and is installed on the guide column, a plurality of compacting roller groups are rotatably installed on the compacting seat, the compacting roller group and the conveying face between conveying device form the conveying channel that is convenient for metal composite board to pass, the compacting seat lifting adjusting mechanism of adjusting the compacting seat height is set up on the frame, the milling edge device that carries out milling edge to metal composite board edge, the lower flanging device that forms the vertical edge board part to the metal composite board edge board part to the upper flanging of the metal composite board, the inner flanging device and the outer flanging device to the vertical edge board part to the inward flanging are also set up in proper order on the frame along the conveying direction of metal composite board.

[0021] The milling edge device includes the first milling edge mechanism installed on the frame and located on one side of the metal composite board, the first milling edge mechanism includes the first milling edge base installed on the frame, the first milling edge lifting seat is vertically lifted and is installed on the first milling edge base, the first milling edge height adjusting mechanism of adjusting the height of the first milling edge lifting seat is set up on the first milling edge base, the first milling edge cutter rotatably installed on the first milling edge lifting seat is driven to rotate by the first milling edge power head, the first milling edge cutter rotates around the vertical rotation center line, and the first milling edge cutter is in contact with the upper part of the edge of the metal composite board.

[0022] The lower flanging device includes the lower flanging frame fixed on the frame and located on the outer side of the composite board, a plurality of lower mounting plates are arranged on the lower flanging frame, a lower flanging roller seat is fixedly installed on each lower mounting plate, a lower flanging roller is rotatably installed on each lower flanging roller seat, the center axis of the upstream lower flanging roller at the most upstream is horizontally arranged, the center axis of the downstream lower flanging roller at the most downstream is vertically arranged, and the center axis of the intermediate lower flanging roller between the upstream lower flanging roller and the downstream lower flanging roller gradually increases according to the intersection angle between the conveying direction of the composite board and the horizontal plane.

[0023] The inner flanging device includes the inner flanging support laterally slidingly installed on the frame and located on the outer side of the composite board, the inner flanging transverse adjusting mechanism of laterally adjusting the inner flanging support is arranged on the frame, and the inner flanging roller group that extrudes the vertical edge board part of the composite board to the inward direction is arranged on the inner flanging support.

[0024] The outer flanging device comprises a lower outer flanging support transversely slidingly mounted on the machine base outside the composite plate, the machine base is provided with an outer flanging transverse adjusting mechanism for transversely adjusting the lower outer flanging support, at least two lower positioning rollers are rotatably mounted on the lower outer flanging support, the central axes of the lower positioning rollers are vertically arranged, an upper outer flanging support is mounted on the pressing seat by an upper outer flanging vertical adjusting mechanism, at least one horizontally arranged outer flanging extruding roller and at least one horizontally arranged outer flanging edge roller are rotatably mounted on the upper outer flanging support, at least two lower positioning rollers are respectively matched with the outer flanging extruding roller and the outer flanging edge roller, the outer side end of the outer flanging extruding roller is provided with a tapered extruding part for extruding the vertical edge plate part from inside to outside, the outer flanging edge roller is located downstream of the outer flanging extruding roller, and the outer flanging edge roller extrudes the vertically flanged vertical edge plate part from top to bottom to make it horizontal; first, the metal composite plate is conveyed to the first edge milling mechanism by the conveying device, and the metal composite plate is pressed by the pressing device, then the first edge milling height adjusting mechanism adjusts the height of the first edge milling lifting seat, so that the first edge milling cutter contacts the upper part of the edge of the metal composite plate, then the first edge milling cutter is driven by the first edge milling power head to mill the upper part of the edge of the metal composite plate, then the milled metal composite plate is continuously conveyed to the lower flanging frame, the edge of the metal composite plate is preliminarily lifted by the upstream lower flanging roller, then the edge of the metal composite plate is gradually lifted to vertical by sequentially passing through the intermediate flanging, at this time, the edge of the metal composite plate is matched with the downstream lower flanging roller for conveying, then the inner flanging or outer flanging is completed after the lower flanging, when the inner flanging, the metal composite plate is conveyed to the inner flanging support, the inner flanging transverse adjusting mechanism adjusts the transverse movement of the inner flanging support, the inner flanging roller group approaches the metal composite plate, and the metal composite plate is extruded to the inner side by the inner flanging roller group conveyed by the conveying device, so that the vertical edge plate part of the metal composite plate is inwardly flanged; when the outer flanging, the metal composite plate is conveyed to the lower outer flanging support, the lower outer flanging support approaches the metal composite plate by the outer flanging transverse adjusting mechanism, so that the lower positioning roller abuts against the vertical edge plate part of the metal composite plate, then the upper outer flanging vertical adjusting mechanism drives the upper outer flanging support to descend, so that the outer flanging extruding roller and the outer flanging edge roller approach the metal composite plate while being matched with the lower positioning roller, the tapered extruding part of the outer flanging extruding roller extrudes the vertical edge plate part from inside to outside, while the lower positioning roller abuts against part of the vertical edge plate part, with the continuous conveying of the metal composite plate, the vertical edge plate part of the metal composite plate continuously inclines outward, and then the vertical edge plate part is rolled to be horizontal by the outer flanging edge roller, and the outward flanging is completed; the automatic edge milling and flanging mechanism can realize edge milling, vertical flanging, inward or outward flanging during the conveying of the metal composite plate, so as to be suitable for different production processes.

[0025] The first edge milling base is horizontally slidably arranged on the base, and a first edge milling distance adjusting mechanism is arranged between the base and the first edge milling base to drive the first edge milling base to move close to or away from the edge of the metal composite plate.

[0026] The edge milling device further comprises a second edge milling mechanism arranged downstream of the first edge milling mechanism, the second edge milling mechanism comprising a second edge milling base horizontally slidably arranged on the base, a second edge milling lifting seat vertically arranged on the second edge milling base, a second edge milling height adjusting mechanism arranged on the second edge milling base to adjust the height of the second edge milling lifting seat, a second edge milling cutter fixedly arranged on the second edge milling lifting seat and driven to rotate by a second edge milling power head, the second edge milling cutter rotating around a horizontal rotation center line, the second edge milling cutter being used to secondarily mill the upper part of the edge of the metal composite plate, a second edge milling distance adjusting mechanism arranged between the base and the second edge milling base to drive the second edge milling base to move close to or away from the edge of the metal composite plate.

[0027] And since the lower flanging frame comprises a lower horizontal fixed plate, an upper vertical fixed plate and a plurality of the lower mounting plates, the lower horizontal fixed plate is fixed on the base, the upper vertical fixed plate is fixed on the pressing seat through fixing bolts, the upper vertical fixed plate is provided with a plurality of vertically extending lower vertical strip-shaped holes, the fixing bolts are constrained in the lower vertical strip-shaped holes, the lower end of the lower mounting plate is fixedly connected with the lower horizontal fixed plate, the upper end of the lower mounting plate is fixedly connected with the upper vertical fixed plate, the lower mounting plate is an arc-shaped mounting plate, the lower flanging roller seat is provided with a sleeve hole sleeving the arc-shaped mounting plate, and the lower flanging roller seat is provided with a locking structure for locking the lower flanging roller seat; the lower horizontal fixed plate and the upper vertical fixed plate can ensure accurate and firm installation of the lower mounting plate, and the upper vertical fixed plate can be adjusted in position on the pressing seat along the lower vertical strip-shaped hole, so that the upper vertical fixed plate cannot follow the lifting after the lifting adjustment of the pressing seat, and the accurate installation is ensured; the lower flanging roller seat can slide along the arc-shaped mounting plate through the sleeve hole, and the position can be effectively fixed through the locking structure, so that the adjustment is simple and convenient.

[0028] And since the number of the intermediate lower flanging rollers is three, the included angles between the central axes of the three intermediate lower flanging rollers and the horizontal plane are 22.5°, 45° and 67.5° respectively; the transition is ensured to be smooth during flanging.

[0029] And since the structure of the inward flanging support is the same as that of the lower flanging frame, the inward flanging roller group comprises an uppermost upstream inward flanging roller, a lowermost downstream inward flanging roller and at least two intermediate inward flanging rollers, the central axis of the upstream inward flanging roller is vertically arranged, the central axis of the downstream inward flanging roller is horizontally arranged, and the central axes of the intermediate inward flanging rollers gradually decrease according to the intersection angle between the conveying direction of the metal composite plate and the horizontal plane; the vertical edge plate part of the metal composite plate can be effectively supported by the upstream inward flanging roller, the vertical edge plate part can be effectively tilted by the intermediate inward flanging roller, so that the tilting angle is continuously increased, and the inward flanging is finally completed by the downstream inward flanging roller, so that the accurate and stable inward flanging is ensured.

[0030] And since each lower positioning roller is rotationally installed on a corresponding positioning roller seat, each positioning roller seat is installed on the lower outward flanging support through a positioning lifting adjusting mechanism; since the outward flanging extruding roller needs to be higher than the upper surface of the metal composite plate when extruding the metal composite plate to ensure that the flanging fold is not lower than the upper surface of the metal composite plate, the lower positioning roller can be lowered until the vertical edge plate part is flush with the upper surface of the metal composite plate as the flanging angle increases, and the lower positioning roller can be controlled to be at the height of the vertical edge plate part of the metal composite plate through the positioning lifting adjusting mechanism, so that the lower positioning roller can cooperate with the corresponding outward flanging extruding roller and outward flanging edge pressing roller.

[0031] And since the outer flanging extrusion roller is installed on the upper outer flanging support through horizontal adjusting structure, the outer flanging extrusion roller can be effectively horizontally moved through the horizontal adjusting structure, so that the tapered extrusion part extrudes the vertical edge plate part of the metal composite plate outward, and the vertical edge plate part is gradually extruded outward until the horizontal edge, thereby improving the flanging effect.

[0032] And since the horizontal adjusting structure comprises a center screw fixed on the upper outer flanging support and horizontally arranged, an adjusting sleeve is threadedly installed on the center screw, the outer flanging extrusion roller is rotatably installed on the adjusting sleeve, a screwing part is arranged at the outer side end of the adjusting sleeve and exposed from the outer flanging extrusion roller, and a compression spring is arranged between the adjusting sleeve and the upper outer flanging support; the extending distance of the outer flanging extrusion roller can be changed by rotating the adjusting sleeve, so that the extrusion inclination range of the vertical edge plate part of the metal composite plate is increased or decreased, and the compression spring can ensure that the adjusting sleeve and the center screw are effectively locked after rotation, thereby improving the effect of the outer flanging of the metal composite plate.

[0033] And since the outer flanging extrusion roller is installed on the upper outer flanging support through horizontal adjusting structure, the outer flanging extrusion roller can be effectively horizontally moved through the horizontal adjusting structure, so that the tapered extrusion part extrudes the vertical edge plate part of the metal composite plate outward, and the vertical edge plate part is gradually extruded outward until the horizontal edge, thereby improving the flanging effect. BRIEF DESCRIPTION OF DRAWINGS

[0034] The utility model will be further explained in connection with the drawings and embodiments.

[0035] Figure 1 It is the front view of the utility model embodiment;

[0036] Figure 2 It is the left view of the first edge milling mechanism of the utility model embodiment;

[0037] Figure 3 It is the left view of the second edge milling mechanism of the utility model embodiment;

[0038] Figure 4 It is the left view of the lower flanging device of the utility model embodiment;

[0039] Figure 5 It is the structure schematic view of the lower flanging device of the utility model embodiment;

[0040] Figure 6 It is the side view of the outer flanging device of the utility model embodiment;

[0041] Figure 7 It is the side view of the inner flanging device of the utility model embodiment

[0042] Figure 8 It is the structure schematic view of the outer flanging device of the utility model embodiment

[0043] Figure 9 is a sectional view of the edge turning and extruding roller of the embodiment of the utility model

[0044] Figure 10 is an enlarged view of the first and second edge milling mechanisms of the embodiment of the utility model;

[0045] In the drawings: 1, base; 2, first edge milling base; 3, first edge milling lifting seat; 4, first edge milling cutter; 5, guide column; 6, pressing seat; 7, pressing roller group; 8, upstream screw lifting machine; 9, downstream screw lifting machine; 10, synchronous connecting rod; 11, operating hand wheel; 12, first edge milling screw nut mechanism; 13, first adjusting hand wheel; 14, first edge milling motor; 15, first spacing adjusting screw nut mechanism; 16, second edge milling base; 17, second edge milling lifting seat; 18, second edge milling cutter; 19, second edge milling screw nut mechanism; 20, second adjusting hand wheel; 21, second edge milling motor; 22, second spacing adjusting screw nut mechanism; 23, conveying belt; 24, belt conveying wheel; 25, metal composite plate; 26, first spacing adjusting hand wheel; 27, second spacing adjusting hand wheel.

[0046] 28, lower mounting plate; 29, lower edge turning roller seat; 30, upstream lower edge turning roller; 31, downstream lower edge turning roller; 32, middle lower edge turning roller; 33, lower horizontal fixing plate; 34, upper vertical fixing plate; 35, lower vertical strip-shaped hole; 36, fixing bolt; 37, sleeve hole; 38, fixing nut; 39, jacking bolt;

[0047] 40, inner edge turning support; 41, vertical edge plate part; 42, lower outer edge turning support; 43, lower positioning roller; 44, upper outer edge turning support; 45, outer edge turning extruding roller; 46, outer edge turning edge pressing roller; 47, conical extruding part; 48, upstream inner edge turning roller; 49, downstream inner edge turning roller; 50, middle inner edge turning roller; 51, inner edge turning transverse adjusting mechanism; 52, lower inner horizontal fixing plate; 53, upper inner vertical fixing plate; 54, inner mounting plate; 55, vertical adjusting strip-shaped hole; 56, outer edge turning transverse adjusting mechanism; 57, positioning roller seat; 58, positioning screw lifting machine; 59, manual turntable; 60, upper vertical strip-shaped hole; 61, central screw; 62, adjusting sleeve; 63, screwing part; 64, compression spring; 65, rotating bearing. DETAILED DESCRIPTION

[0048] The utility model will be described in further detail below through specific embodiments.

[0049] As Figures 1 to 10As shown, an automatic milling edge flanging machine for metal composite plate comprises a base 1, a conveying device for conveying the metal composite plate 25 is arranged on the base 1, a pressing device for pressing the metal composite plate 25 is further installed on the base 1 above the conveying device, the pressing device comprises a guide column 5 fixed on the base 1, a pressing seat 6 is vertically and liftly installed on the guide column 5, a plurality of pressing roller groups 7 are rotatably installed on the pressing seat 6, a conveying channel for the metal composite plate 25 to pass through is formed between the conveying surface of the conveying device and the pressing roller groups 7, a pressing seat 6 lifting adjusting mechanism for adjusting the height of the pressing seat 6 is arranged on the base 1, a milling edge device for milling the edge of the metal composite plate 25, a lower flanging device for upwardly flanging the edge plate part of the metal composite plate 25 to form a vertical edge plate part 41, an inner flanging device for inwardly flanging the vertical edge plate part 41, and an outer flanging device for outwardly flanging are sequentially arranged on the base 1 along the conveying direction of the metal composite plate 25;

[0050] The milling edge device comprises a first milling edge mechanism installed on the base 1 and located on one side of the metal composite plate 25, the first milling edge mechanism comprises a first milling edge base 2 installed on the base 1, a first milling edge lifting seat 3 is vertically and liftly installed on the first milling edge base 2, a first milling edge height adjusting mechanism for adjusting the height of the first milling edge lifting seat 3 is arranged on the first milling edge base 2, a first milling edge cutter 4 driven to rotate by a first milling edge power head is fixedly installed on the first milling edge lifting seat 3, the first milling edge cutter 4 rotates around a vertical rotation center line, and the first milling edge cutter 4 contacts the upper part of the edge of the metal composite plate 25;

[0051] The lower flanging device comprises a lower flanging frame fixed on the base 1 and located outside the composite plate, a plurality of lower mounting plates 28 are arranged on the lower flanging frame, a lower flanging roller seat 29 is fixedly installed on each lower mounting plate 28, a lower flanging roller is rotatably installed on each lower flanging roller seat 29, the central axis of the upstream lower flanging roller 30 at the most upstream is horizontally arranged, the central axis of the downstream lower flanging roller 31 at the most downstream is vertically arranged, and the central axis of the intermediate lower flanging roller 32 between the upstream lower flanging roller 30 and the downstream lower flanging roller 31 gradually increases according to the intersection angle with the horizontal plane in the conveying direction of the composite plate;

[0052] The inner flanging device comprises an inner flanging support 40 which is transversely and slidingly installed on the base 1 and located outside the composite plate, an inner flanging transverse adjusting mechanism 51 for transversely adjusting the inner flanging support 40 is arranged on the base 1, and an inner flanging roller group for extruding the vertical edge plate part 41 of the composite plate inwardly is arranged on the inner flanging support 40;

[0053] The outward flanging device includes a lower outward flanging bracket 42 that is laterally slidably mounted on the machine base 1 and located on the outside of the composite board. The machine base 1 has an outward flanging lateral adjustment mechanism 56 for laterally adjusting the lower outward flanging bracket 42. At least two lower positioning rollers 43 are rotatably mounted on the lower outward flanging bracket 42, and the central axis of the lower positioning rollers 43 is vertically arranged. An upper outward flanging bracket 44 is mounted on the pressing seat 6 through an upper outward flanging vertical adjustment mechanism. At least two lower positioning rollers 43 are rotatably mounted on the upper outward flanging bracket 44. There is at least one horizontally arranged outward flanging extrusion roller 45 and at least one horizontally arranged outward flanging pressing roller 46. At least two lower positioning rollers 43 respectively cooperate with the outward flanging extrusion roller 45 and the outward flanging pressing roller 46. The outer end of the outward flanging extrusion roller 45 is provided with a conical extrusion part 47 that extrudes the vertical side plate part 41 from the inside out. The outward flanging pressing roller is located downstream of the outward flanging extrusion roller 45. The outward flanging pressing roller extrudes the outwardly flanging vertical side plate part 41 from top to bottom to make it horizontal.

[0054] In this embodiment, the pressing device includes a guide column 5 fixed on the base 1. A pressing seat 6 is vertically and vertically mounted on the guide column 5. A plurality of pressing roller groups 7 are rotatably mounted on the pressing seat 6. A conveying channel is formed between the pressing roller groups 7 and the conveying surface of the conveying device to facilitate the passage of the metal composite plate 25. The base 1 is provided with a pressing seat 6 lifting adjustment mechanism to adjust the height of the pressing seat 6. The guide column 5 can ensure that the pressing seat 6 can be accurately and stably lifted and lowered. The pressing roller groups 7 can press the metal composite plate 25 as a whole and convey it effectively as the pressing seat 6 descends. The pressing roller groups 7 can follow the metal composite plate 25 to assist in the conveying and ensure the pressing force.

[0055] like Figure 1 As shown, the lifting and adjusting mechanism of the pressing seat 6 includes an upstream screw jack 8 and a downstream screw jack 9. The lifting seats of the upstream screw jack 8 and the downstream screw jack 9 are respectively fixedly connected to the pressing seat 6. A synchronous connecting rod 10 connects the upstream screw jack 8 and the downstream screw jack 9. The upstream screw jack 8 or the downstream screw jack 9 is equipped with an operating handwheel 11 or a drive power device. The drive power device can be a drive motor. By installing the operating handwheel 11 or the drive motor on the upstream screw jack 8, the worm gear of the upstream screw jack 8 can be driven to rotate, which in turn drives the worm wheel to rotate, thereby allowing the lifting seat to rise and fall along the screw. The synchronous connecting rod 10 can also synchronously drive the worm gear of the downstream screw jack 9, thereby allowing the lifting seats of the upstream screw jack 8 and the downstream screw jack 9 to rise and fall synchronously, so that the pressing roller group 7 can accurately press the metal composite plate 25. The upstream screw jack 8 and the downstream screw jack 9 are existing structures on the market, so they will not be described in detail in this article.

[0056] like Figure 2As shown, the first edge milling base 2 is transversely horizontally slidingly installed on the machine base 1, and a first edge milling distance adjusting mechanism is arranged between the machine base 1 and the first edge milling base 2, which drives the first edge milling base 2 to approach or move away from the edge of the metal composite plate 25; the first edge milling distance adjusting mechanism is a first distance adjusting screw nut mechanism 15, the first edge milling base 2 of the first distance adjusting screw nut mechanism 15 supports the first lifting seat, and the screw rod of the first distance adjusting screw nut mechanism 15 is perpendicular to the conveying direction of the metal composite plate 25, so that the rotation of the screw rod driven by the first distance adjusting hand wheel 26 drives the nut to rotate, so that the first edge milling base 2 of the first distance adjusting screw nut mechanism 15 can move transversely, and the milling width of the first edge milling cutter 4 to the edge of the metal composite plate 25 can be controlled, thereby improving the milling flexibility.

[0057] Further, the first edge milling height adjusting mechanism includes a first edge milling screw nut mechanism 12, the screw rod of the first edge milling screw nut mechanism 12 is rotatably installed on the first edge milling base 2 and is provided with a first adjusting hand wheel 13, and the nut of the first edge milling screw nut mechanism 12 is fixedly connected with the first edge milling lifting seat 3; the first edge milling lifting seat 3 is a sliding block and sliding rail structure, so that it can be accurately lifted and slid, and the rotation of the screw rod driven by the first adjusting hand wheel 13 can drive the nut to move up and down, thereby driving the first edge milling lifting seat 3 to effectively lift and control the milling height of the first edge milling cutter 4; the first edge milling power head is a first edge milling motor 14, which is fixedly installed on the first lifting seat, and the first edge milling motor 14 and the first edge milling cutter 4 are provided with a transmission structure, which facilitates the rotation of the first edge milling cutter 4 around the vertical rotation center line, is simple in structure, accurate and convenient to adjust.

[0058] As Figure 3As shown, the edge milling device further comprises a second edge milling mechanism arranged downstream of the first edge milling mechanism, the second edge milling mechanism comprising a second edge milling base 16 horizontally slidingly arranged on the base 1, a second edge milling lifting seat 17 vertically liftingly arranged on the second edge milling base 16, a second edge milling height adjusting mechanism arranged on the second edge milling base 16 for adjusting the height of the second edge milling lifting seat 17, and a second edge milling cutter 18 fixedly arranged on the second edge milling lifting seat 17 and rotatingly driven by a second edge milling power head, the second edge milling cutter 18 rotating around a horizontal rotation center line and performing secondary edge milling on the upper part of the edge of the metal composite plate 25. The second edge milling mechanism has the same structure as the first edge milling mechanism, the second edge milling height adjusting mechanism is a second edge milling screw nut mechanism 19, the screw rod of the second edge milling screw nut mechanism 19 is rotatably arranged on the second edge milling base 16 and is provided with a second adjusting hand wheel 20, and the nut of the second edge milling screw nut mechanism 19 is fixedly connected with the second edge milling lifting seat 17. The second edge milling lifting seat 17 has a sliding block and sliding rail structure, so that it can accurately liftingly slide, and the second adjusting hand wheel 20 is rotated to drive the screw rod to rotate, so that the nut is driven to liftingly move and effectively drive the second edge milling lifting seat 17 to liftingly move, thereby controlling the milling height of the second edge milling cutter 18. The second edge milling power head is a second edge milling motor 21 fixedly arranged on the second lifting seat, and the second edge milling motor 21 and the second edge milling cutter 18 are provided with a transmission structure, so that the second edge milling cutter 18 can rotate around the horizontal center line, and the structure is simple, accurate and convenient to adjust.

[0059] In the embodiment, a second edge milling spacing adjusting mechanism is arranged between the base 1 and the second edge milling base 16, the second edge milling spacing adjusting mechanism drives the second edge milling base 16 to move close to or away from the edge of the metal composite plate 25. The second edge milling spacing adjusting mechanism is a second spacing adjusting screw nut mechanism 22, the second edge milling base 16 of the second spacing adjusting screw nut mechanism 22 supports the second lifting seat, and the screw rod of the second spacing adjusting screw nut mechanism 22 is perpendicular to the conveying direction of the metal composite plate 25, so that the second spacing adjusting hand wheel 27 drives the screw rod of the second spacing adjusting screw nut mechanism 22 to rotate to drive the nut to rotate, so that the second edge milling base 16 of the second spacing adjusting screw nut mechanism 22 can move transversely, and the milling width of the second edge milling cutter 18 on the edge of the metal composite plate 25 can be controlled, thereby improving the milling flexibility.

[0060] Two first edge milling mechanisms and a second edge milling mechanism are arranged on the base 1, so that the first edge milling mechanisms and the second edge milling mechanism can be used alternately, thereby improving the use efficiency.

[0061] As Figure 4 and Figure 5As shown, the lower flanging frame comprises a lower horizontal fixed plate 33, an upper vertical fixed plate 34 and a plurality of the lower mounting plates 28, the lower horizontal fixed plate 33 is fixed on the base 1, the upper vertical fixed plate 34 is fixed on the pressing seat 6 through fixing bolts 36, the upper vertical fixed plate 34 is provided with a plurality of vertically extending lower vertical strip-shaped holes 35, the fixing bolts 36 are constrained in the lower vertical strip-shaped holes 35, the lower end of the lower mounting plate 28 is fixedly connected with the lower horizontal fixed plate 33, and the upper end of the lower mounting plate 28 is fixedly connected with the upper vertical fixed plate 34; through the lower horizontal fixed plate 33 and the upper vertical fixed plate 34, the installation of the lower mounting plate 28 can be ensured to be accurate and firm, and the upper vertical fixed plate 34 is adjusted in position on the pressing seat 6 along the sliding of the lower vertical strip-shaped holes 35, so that after the lifting adjustment of the pressing seat 6, the upper vertical fixed plate 34 will not be lifted, and the installation can be ensured to be accurate.

[0062] Further, the lower mounting plate 28 is an arc-shaped mounting plate, the lower flanging roller seat 29 is provided with a sleeve hole 37 sleeved on the arc-shaped mounting plate, and the lower flanging roller seat 29 is provided with a locking structure for locking the lower flanging roller seat 29; through the sleeve hole 37, the lower flanging roller seat 29 can slide along the arc-shaped mounting plate in an arc shape, so that the angle of the lower flanging roller is changed, and the position can be effectively fixed through the locking structure, and the adjustment is simple and convenient.

[0063] In the embodiment, the number of the intermediate lower flanging rollers 32 is three, and the included angles between the central axes of the three intermediate lower flanging rollers 32 and the horizontal plane are respectively 22.5°, 45° and 67.5°; cooperating with the upstream lower flanging roller 30 and the downstream lower flanging roller 31, the metal composite plate 25 is stably and sequentially transitionally flanged after being conveyed by the conveying device, so that the flanging can be stable and accurate, and the flanging accuracy is improved.

[0064] As shown in the drawings, Figure 1 and Figure 7As shown, the structure of the inward flanging support 40 is same as that of the downward flanging support, the inward flanging roller group comprises the uppermost upstream inward flanging roller 48, the lowermost downstream inward flanging roller 49 and at least two intermediate inward flanging rollers 50 in the middle, the central axis of the upstream inward flanging roller 48 is vertically arranged, the central axis of the downstream inward flanging roller 49 is horizontally arranged, and the central axis of the intermediate inward flanging roller 50 gradually decreases the intersection angle with the horizontal plane in the conveying direction of the metal clad plate 25; The inward flanging support 40 is provided with a plurality of spaced inward mounting plates 54, since the vertical edge plate part 41 of the metal clad plate 25 needs to be inwardly flanged, the upstream inward flanging roller 48 changes the angle towards the inside when changing the angle towards the downstream inward flanging roller 49, the vertical edge plate part 41 of the metal clad plate 25 can be effectively supported by the upstream inward flanging roller 48, then the vertical edge plate part 41 can be effectively tilted by the intermediate inward flanging roller 50, so as to continuously increase the tilt angle, and finally the inward flanging is completed by the downstream inward flanging roller 49, so as to ensure the accurate and stable inward flanging.

[0065] Further, the inward mounting plate 54 is an arc-shaped mounting plate, the inward flanging roller seat is provided with a sleeve hole 37 sleeved on the arc-shaped mounting plate, and the inward flanging roller seat is provided with a locking structure for locking the inward flanging roller seat; The inward flanging roller seat can slide along the arc-shaped mounting plate through the sleeve hole 37, and the position can be effectively fixed through the locking structure, so that the adjustment is simple and convenient; The locking structure comprises a fixing nut 38 welded on the outer side of the inward flanging roller seat, a jacking bolt 39 threadedly connected on the fixing nut 38, and the jacking bolt 39 jacks up the outer side end face of the inward mounting plate 54; The outer side end face of the inward mounting plate 54 can be jacked up by rotating the jacking bolt 39, so as to effectively fix the inward flanging roller, and the structure is simple.

[0066] In the embodiment, the inner flanging transverse adjusting mechanism 51 is a screw-nut mechanism; a lower inner horizontal fixed plate 52 is fixedly installed on the screw-nut mechanism and synchronously slides; an upper inner vertical fixed plate 53 is slidingly installed on the pressing seat 6; a plurality of inner installation plates 54 are fixedly installed between the lower inner horizontal fixed plate 52 and the upper inner vertical fixed plate 53; the upper inner vertical fixed plate 53 is fixed on the pressing seat 6 through the fixing bolts 36; a plurality of vertically extending vertical adjusting strip-shaped holes 55 are arranged on the upper inner vertical fixed plate 53; the fixing bolts 36 are constrained in the vertical adjusting strip-shaped holes 55; the position of the upper inner vertical fixed plate 53 on the pressing seat 6 is adjusted along the vertical adjusting strip-shaped holes 55, so that the upper inner vertical fixed plate 53 cannot follow the lifting after the lifting adjustment of the pressing seat 6, and the installation accuracy is ensured; meanwhile, when the screw-nut mechanism is adjusted to move transversely, the installation plate moves transversely, and only the fixing bolts 36 are loosened, so that the upper inner vertical fixed plate 53 can move away from the metal composite plate 25 without being fixed on the pressing seat 6, and the driving of the inner flanging roller group to approach or move away from the metal composite plate 25 is simple, fast and convenient; the screw-nut mechanism is a structure existing on the market, and thus is not described in detail herein.

[0067] Further, the number of the intermediate inner flanging rollers 50 is three, and the intersection angles between the central axes and the horizontal plane are 67.5°, 45° and 22.5° respectively; in cooperation with the upstream inner flanging roller 48 and the downstream inner flanging roller 49, the metal composite plate 25 is stably and sequentially transitionally flanged after being conveyed by the conveying device, so that the flanging is stable and accurate, and the flanging accuracy is improved.

[0068] In the embodiment, the outer flanging transverse adjusting mechanism 56 has the same structure as the inner flanging transverse adjusting mechanism 51; thus, the outer flanging transverse adjusting mechanism 56 is also a screw-nut mechanism, and the lower positioning roller 43 is installed on the outer flanging transverse adjusting mechanism 56, so as to approach or move away from the vertical edge plate part 41 of the metal composite plate 25, so that the metal composite plate 25 is flanged inwardly or outwardly by adjusting the transverse distance, and the adjustment is convenient and fast, and the use is facilitated.

[0069] As Figure 6 and Figure 8As shown, each of the lower positioning rollers 43 is rotatably mounted on a corresponding positioning roller seat 57, and each positioning roller seat 57 is mounted on the lower flanging support through a positioning lifting adjusting mechanism; since the flanging extrusion roller 45 needs to be higher than the upper surface of the metal composite plate 25 when extruding the metal composite plate 25, the lower positioning roller 43 needs to be higher than the upper surface of the metal composite plate 25 to ensure that the flanging does not lower than the upper surface of the metal composite plate 25, and as the angle of the flanging becomes larger, the lower positioning roller 43 can be lowered until it supports the vertical plate part 41 and the upper surface of the metal composite plate 25 is flush, and the positioning lifting adjusting mechanism can control the lower positioning roller 43 to be at the height of the vertical plate part 41 of the metal composite plate 25, so as to cooperate with the corresponding flanging extrusion roller 45 and flanging edge roller 46; the positioning lifting adjusting mechanism is a positioning lead screw lifter 58, and the positioning lead screw lifter 58 is provided with a manual turntable 59 to drive the lower positioning roller 43 to the appropriate height.

[0070] Further, the upper flanging vertical adjusting mechanism includes an upper vertical strip-shaped hole 60 arranged on the pressing seat 6, and the upper flanging support is fixed on the pressing seat 6 by a bolt constrained in the upper vertical strip-shaped hole 60; the upper flanging support 44 is adjusted in height along the upper vertical strip-shaped hole 60, so as to change the height of the flanging extrusion roller 45 and the flanging edge roller 46, adapt to the thickness of different metal composite plates 25, and avoid the outward flanging, which is simple in structure and convenient to use.

[0071] As shown in Figure 8 and Figure 9 , the flanging extrusion roller 45 is mounted on the upper flanging support 44 through a horizontal adjusting structure, and the horizontal adjusting structure can effectively horizontally move the flanging extrusion roller 45, so as to make the tapered extrusion part 47 extrude the vertical plate part 41 of the metal composite plate 25 outward, and make the vertical plate part 41 gradually outward flange until it is horizontal, thereby improving the flanging effect.

[0072] In the embodiment, the horizontal adjusting structure includes a central screw 61 fixed on the upper flanging support 44 and arranged horizontally, a adjusting screw sleeve 62 is threadedly mounted on the central screw 61, the flanging extrusion roller 45 is rotatably mounted on the adjusting screw sleeve 62, a rotating part 63 is arranged at the outer side end of the adjusting screw sleeve 62 and exposed from the flanging extrusion roller 45, and a compression spring 64 is arranged between the adjusting screw sleeve 62 and the upper flanging support 44; a rotating bearing 65 is arranged between the adjusting screw sleeve 62 and the flanging extrusion roller 45 to ensure stable rotation, and the adjusting screw sleeve 62 can change the extension distance of the flanging extrusion roller 45 by rotating, thereby increasing or reducing the extrusion inclination range of the vertical plate part 41 of the metal composite plate 25, and the compression spring 64 can effectively lock the adjusting screw sleeve 62 and the central screw 61 after rotation, thereby improving the effect of the outward flanging of the metal composite plate 25.

[0073] Further, the outer flanging edge pressing roller is also installed on the upper outer flanging edge support 44 through horizontal adjusting structure; therefore the inner structure of the outer flanging edge pressing roller 46 is same with the structure of the outer flanging edge extruding roller 45, the adjusting screw sleeve 62 is also rotatably installed in the outer flanging edge pressing roller 46, and the adjusting screw sleeve 62 is also rotatably installed on another central screw rod 61, the outer flanging edge pressing roller 46 and the adjusting screw sleeve 62 are also rotatably connected through the rotating bearing 65, so that the outer flanging edge pressing roller 46 rotates stably, and can also move along the central screw rod 61.

[0074] The conveying device is a belt conveying device, and a belt conveying wheel 24 for driving the conveying of the belt 23 is fixedly installed on the base 1, and the belt conveying wheel 24 is provided with a conveying motor, so as to effectively cooperate with the pressing roller set 7 to effectively convey.

[0075] The working principle of the utility model is: firstly, the metal composite plate 25 is placed on the conveying belt 23, then the hand wheel 11 is operated to drive the worm of the upstream screw rod elevator 8 to rotate, so that the lifting seat of the upstream screw rod elevator 8 and the downstream screw rod elevator 9 is lifted, the pressing roller set 7 on the pressing seat 6 is driven to press the metal composite plate 25, and the metal composite plate 25 is conveyed to the first edge milling cutter 4, then the first spacing adjusting screw rod nut mechanism 15 and the first edge milling screw rod nut mechanism 12 are used to adjust the positions of the first edge milling base 2 and the first edge milling lifting seat 3, so that the first edge milling cutter 4 is close to the edge of the metal composite plate 25, and the first step of milling is carried out, then the metal composite plate 25 is conveyed to the second edge milling cutter 18, the second spacing adjusting screw rod nut mechanism 22 and the second edge milling screw rod nut mechanism 19 are used to adjust the positions of the second edge milling base 16 and the second edge milling lifting seat 17, so that the second edge milling cutter 18 is close to the edge of the metal composite plate 25, and the second step of milling is carried out, then the metal composite plate 25 is conveyed to the upstream downward flanging roller 30, the upstream downward flanging roller 30, the intermediate downward flanging roller 32 and the downstream downward flanging roller 31 are adjusted to corresponding angles, the metal composite plate 25 is conveyed to complete automatic downward flanging, then inward flanging or outward flanging is carried out, then the metal composite plate 25 is conveyed to the inward flanging support 40, the upstream inward flanging roller 48, the intermediate inward flanging roller 50 and the downstream inward flanging roller 49 are adjusted to corresponding angles in sequence, along with the conveying of the metal composite plate 25, the inward flanging is completed, or when the metal composite plate 25 is directly conveyed to the lower outward flanging support 42, the outward flanging transverse adjusting mechanism 56 drives the lower positioning roller 43 to abut against the vertical edge plate part 41 of the metal composite plate 25, the positioning screw rod elevator 58 drives the lower positioning roller 43 to lift to a proper height, the upper flanging support adjusts the height of the upper flanging extruding roller and the upper flanging pressing roller close to the metal composite plate 25 through the upper vertical strip-shaped hole 60, and the conical extruding part 47 of the upper flanging extruding roller is extruded to the vertical edge plate part 41 of the metal composite plate 25 by rotating the adjusting screw sleeve 62, the upper flanging pressing roller is continuously inclined until the upper flanging pressing roller is pressed flat, and the outward flanging is completed.

[0076] The above-described embodiments are only preferred embodiments of the present application, and are not intended to limit the scope of the present application. Various modifications and improvements can be made to the technical solutions of the present application without departing from the design spirit of the present application, and all such modifications and improvements shall fall within the protection scope of the present application as defined by the claims.

Claims

1. A kind of automatic edge milling and flanging machine of metal composite plate, including frame, the conveying device for conveying metal composite plate is provided on the frame, the frame is also installed with the compacting device for compacting the metal composite plate above conveying device, the compacting device includes guide column fixed on the frame, compacting seat is vertically lifted and installed on the guide column, several compacting roller groups are rotatably installed on the compacting seat, the compacting roller group and the conveying surface of the conveying device form the conveying channel that the metal composite plate is conveniently passed between, the compacting seat lifting adjusting mechanism for adjusting the height of the compacting seat is provided on the frame, it is characterized by: The machine base is further provided with a milling device for milling the edges of the metal composite plate, a lower flanging device for forming vertical edge plate portions by upward flanging the edge plate portions of the metal composite plate, an inner flanging device for inward flanging the vertical edge plate portions, and an outer flanging device for outward flanging in sequence along the conveying direction of the metal composite plate. The milling device comprises a first milling mechanism mounted on the machine base and located at one side of the metal composite plate, and the first milling mechanism comprises a first milling base mounted on the machine base, a first milling lifting seat vertically mounted on the first milling base, a first milling height adjusting mechanism provided on the first milling base for adjusting the height of the first milling lifting seat, a first milling cutter fixedly mounted on the first milling lifting seat and driven to rotate by a first milling power head, and the first milling cutter rotates about a vertical rotation center line and contacts the upper portion of the edge of the metal composite plate. The lower flanging device comprises a lower flanging frame fixed on the machine base and located outside the composite plate, a plurality of lower mounting plates are provided on the lower flanging frame, a lower flanging roller seat is fixedly mounted on each lower mounting plate, a lower flanging roller is rotatably mounted on each lower flanging roller seat, the center axis of the uppermost upstream lower flanging roller is horizontally arranged, the center axis of the downstream lower flanging roller is vertically arranged, and the center axis of the intermediate lower flanging roller between the upstream lower flanging roller and the downstream lower flanging roller gradually increases with the intersection angle with the horizontal plane according to the conveying direction of the composite plate. The inner flanging device comprises an inner flanging support laterally slidingly mounted on the machine base and located outside the composite plate, an inner flanging lateral adjusting mechanism is provided on the machine base for laterally adjusting the inner flanging support, and an inner flanging roller group is provided on the inner flanging support for extruding the vertical edge plate portion of the composite plate inward. The outer flanging device comprises a lower outer flanging support laterally slidingly mounted on the machine base and located outside the composite plate, an outer flanging lateral adjusting mechanism is provided on the machine base for laterally adjusting the lower outer flanging support, at least two lower positioning rollers are rotatably mounted on the lower outer flanging support, the center axis of the lower positioning roller is vertically arranged, an upper outer flanging support is mounted on the pressing seat by an upper outer flanging vertical adjusting mechanism, at least one horizontally arranged outer flanging extruding roller and at least one horizontally arranged outer flanging pressing roller are rotatably mounted on the upper outer flanging support, at least two lower positioning rollers cooperate with the outer flanging extruding roller and the outer flanging pressing roller respectively, a tapered extruding portion is provided on the outer side end of the outer flanging extruding roller for extruding the vertical edge plate portion from inside to outside, the outer flanging pressing roller is located downstream of the outer flanging extruding roller, and the outer flanging pressing roller extrudes the outwardly flanged vertical edge plate portion horizontally from top to bottom.

2. The automatic edge milling and flanging machine for metal composite panels as claimed in claim 1, characterized in that: The first edge milling base is horizontally slidably mounted on the machine base, and a first edge milling distance adjusting mechanism is arranged between the machine base and the first edge milling base to drive the first edge milling base to move close to or away from the edge of the metal composite plate.

3. The automatic edge milling and flanging machine for metal composite panels as claimed in claim 2, characterized in that: The edge milling device further comprises a second edge milling mechanism arranged downstream of the first edge milling mechanism.

4. The automatic edge milling and flanging machine for metal composite panels as claimed in claim 1, characterized in that: The lower flanging frame comprises a lower horizontal fixed plate, an upper vertical fixed plate and a plurality of lower mounting plates.

5. The automatic edge milling and flanging machine for metal composite panels as claimed in claim 1, characterized in that: The three intermediate lower flanging rollers have center axes with angles of 22.5°, 45° and 67.5° with the horizontal plane, respectively.

6. The automatic edge milling and flanging machine for metal composite panels as claimed in claim 4, characterized in that: The inner flanging support has the same structure as the lower flanging frame.

7. An automatic edge milling and flanging machine for metal composite panels as claimed in claim 6, characterized in that: Each lower positioning roller is rotatably mounted on a corresponding positioning roller seat, and each positioning roller seat is mounted on the lower outer flanging support through a positioning lifting adjusting mechanism.

8. The automatic edge milling and flanging machine for metal composite panels as claimed in claim 1, characterized in that: The outer flanging extruding roller is mounted on the upper outer flanging support through a horizontal adjusting structure.

9. An automatic edge milling and flanging machine for metal composite panels as claimed in claim 8, characterized in that: The horizontal adjusting structure comprises a center screw fixed to the upper flanging support and arranged horizontally, an adjusting screw sleeve is screwed on the center screw, the flanging extruding roller is rotatably installed on the adjusting screw sleeve, a screwing part is arranged at the outer end of the adjusting screw sleeve and exposed from the flanging extruding roller, and a compression spring is arranged between the adjusting screw sleeve and the upper flanging support.

10. The automatic edge milling and flanging machine for metal composite panels according to claim 9, characterized in that: The flanging pressing roller is also installed on the upper flanging support through the horizontal adjusting structure.

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