Automated continuous production line and production method for laminated metal composite materials

Abstract

This application relates to the technical field of manufacturing metal composite materials, and particularly to an automated continuous production line and production method for laminated metal composite materials. The automated continuous production line includes a through-type fine shot blasting device, a through-type milling and drilling device, a through-type surface finishing device, a through-type surface cleaning device, a multi-layer blanking device, a hydraulic pressing and spot welding device, a combined welding workstation, a detection device, a multi-plate trolley type constant temperature heating device, a high vacuum unit device, and a vacuum tube plugging device. It also includes an intelligent overhead crane and multiple RGV transport vehicles. Through the transportation of the intelligent overhead crane or RGV transport vehicles, the serial production of each device is realized. This production line solves the production process technology and equipment defects in this technical field, eliminates production safety hazards, greatly improves production output, reduces production costs, and ensures high-quality production products.

Description

Technical Field

[0001] This application relates to the technical field of metal composite material manufacturing, and particularly to an automated continuous production line and production method for laminated metal composite materials. Background Art

[0002] Before hot rolling and compounding of metal composite plates, strips, and coils, whether it is a single-sided or double-sided single-rolled composite blank or a stacked-rolled composite blank, it is necessary to go through the technological processes of surface scale removal, welding groove milling, interlayer sealing welding and groove welding of the composite blank, and vacuum pumping between the composite layers.

[0003] For the process methods used in existing production lines, the blank forming process is cumbersome, and most of its production equipment operates independently. Especially for the flat laminated blank forming scheme, most of them are complex in structure, have low compatibility of auxiliary machines, and consider fewer operating conditions. Such schemes generally work in an adsorption or hoisting or open-loop state, operating one material at a time. As a result, manual labor and cranes are frequently used in existing production lines, resulting in very low production capacity and high safety hazards. To ensure production safety, product quality, and significantly improve production capacity, a method for automated continuous production of laminated metal composite materials is provided. Summary of the Invention

[0004] One of the problems existing in the background art that the present invention aims to solve.

[0005] To this end, the present invention provides an automated continuous production line and production method for laminated metal composite materials.

[0006] The technical solution adopted by the present invention to solve its technical problems is:

[0007] An automated continuous production line for laminated metal composite materials, the automated continuous production line includes a through-type fine shot blasting device, a through-type milling and drilling device, a through-type surface finishing device, a through-type surface cleaning device, a foil and dressing application device, a laminating and blank forming device, a hydraulic pressing and spot welding device, a combined welding workstation, a detection device, a multi-plate trolley type constant temperature heating device, a high vacuum unit device, and a vacuum tube plugging device. The automated continuous production line further includes an intelligent overhead crane and multiple RGV transfer vehicles. Through the transportation of the intelligent overhead crane or RGV transfer vehicles, the plates are sequentially processed through the through-type fine shot blasting device, the through-type milling and drilling device, the through-type surface finishing device, the through-type surface cleaning device, the foil and dressing application device, the laminating and blank forming device, the hydraulic pressing and spot welding device, the combined welding workstation, the detection device, the constant temperature heating high vacuum unit device, and the vacuum tube plugging device.

[0008] Further, a transmission component is provided in each of the pass-through fine shot blasting equipment, pass-through milling and drilling equipment, pass-through surface grinding equipment, pass-through surface cleaning equipment, foil applying and dressing equipment, multi-layer laminating equipment, hydraulic pressing and spot welding equipment, and combined welding workstation. The transmission component automatically transports the plates through a plurality of rotatably arranged rollers.

[0009] Further, it further includes a controller. The controller adopts a PLC control system and is electrically connected to the pass-through fine shot blasting equipment, pass-through milling and drilling equipment, pass-through surface grinding equipment, pass-through surface cleaning equipment, foil applying and dressing equipment, multi-layer laminating equipment, hydraulic pressing and spot welding equipment, combined welding workstation, detection equipment, multi-plate trolley type constant temperature heating equipment, high vacuum unit equipment, and vacuum tube plugging equipment.

[0010] Further, the multi-layer laminating equipment includes

[0011] a mounting frame, and

[0012] a plate feeding component, which is arranged on the mounting frame at intervals along the plate transmission direction;

[0013] a main flipping device, which is arranged between adjacent plate feeding components and is used to flip the plates on the plate feeding components so that the plates are separated from the plate feeding components;

[0014] an auxiliary flipping device, which is used to receive the plates on the main flipping device.

[0015] An automated continuous production method for laminated metal composites, which is applied to the automated continuous production line for laminated metal composites as described above, includes the following steps

[0016] Perform oxide scale grinding treatment on the surface of the metal plate;

[0017] At the same time, mill the welding grooves on the upper and lower edges of both sides of the metal plate after removing the oxide scale;

[0018] Clean the dust on the surface of the metal plate;

[0019] Stack multiple cleaned and milled plates together, press the multi-layer plates to extract the air between adjacent plates, spot weld adjacent plates together, and then weld adjacent plates.

[0020] Further, during the process of milling the welding grooves, drill a vertical hole in the middle of the end of the base carbon steel plate and a horizontal hole in the middle of the plate thickness, and make the two holes communicate to process a vacuum tube position, so as to weld a vacuum tube between the composite plates.

[0021] Further, a dressing is coated on the surface of the sheet before the sheets are stacked. When the sheets to be stacked are dissimilar sheets, a single or alloy foil with a thickness of 0.02 - 0.05 mm that can hinder the formation of interfacial compounds between the two metals is fully laid between the sheets; when the two sheets to be stacked are the same kind of sheets, an anti-sticking isolation MgO preparation is automatically brushed and quickly dried on the sheets.

[0022] Further, when the stacking and blanking equipment stacks the sheets, the first sheet is transported by the sheet feeding assembly, and the sheet is placed on the main flipping device. The main flipping device moves towards the auxiliary flipping device, moving the sheet from the initial position to the first position first. The main flipping device and the auxiliary flipping device simultaneously approach and flip 90 degrees towards each other. At this time, the sheet is clamped between the main flipping device and the auxiliary flipping device. Then, the main flipping device continues to move along the Y direction, moving the sheet towards the auxiliary flipping device so that the sheet abuts against the auxiliary flipping device. Then the main flipping device returns to the initial position and rotates to 0 degrees, and the auxiliary flipping device rotates the sheet to 80 degrees for temporary storage. Similarly, multiple other sheets are input by the sheet feeding assembly and transferred to the auxiliary flipping device for temporary storage through the main flipping device. After moving multiple sheets to be stacked between the main flipping device and the auxiliary flipping device, the auxiliary flipping device rotates towards the main flipping device, rotating multiple sheets towards the main flipping device so that the sheets abut against the main flipping device. The main flipping device brings multiple sheets back to the initial position and rotates to 0 degrees, and at the same time the auxiliary flipping device returns to its position, and the sheet feeding assembly rises to continue transporting the combined sheets forward.

[0023] Further, the welded multi-layer composite sheet is placed in a constant temperature heating high-vacuum unit equipment to evacuate the air and assist in heating it.

[0024] Further, when evacuating the air, the working temperature for heating the sheet ≤ 350 degrees.

[0025] The beneficial effects of the present invention are as follows: This application is an integrated composite steel automatic continuous production line. Through equipment such as overhead cranes and RGV transport vehicles, each equipment is formed in series, and through PLC control, one-key command scheduling of the production line is realized, and the operation sequence of the workpieces on the production line is regulated, avoiding production losses caused by human operation errors and personnel operation errors. In this blanking automatic continuous production line, overhead cranes are only used at the head and tail workstations, namely the base layer, the cladding feeding, and the composite blank discharging. Other workstations do not use them, greatly reducing potential production safety hazards. The processing procedures of each equipment on the production line are automatically controlled, ensuring that the reject rate of composite blanking is zero and significantly reducing costs. Since automatic continuous production is formed, the use of personnel can be greatly reduced, the energy consumption of the equipment is reduced, and the consumption of consumables is controlled in the best state. [[ID=B]] BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the drawings and embodiments.

[0027] Figure 1 It is the production flow chart of the automated continuous production line for the laminated metal composite material in the present invention.

[0028] Figure 2 It is the schematic structural diagram of the pass-through milling and drilling equipment in the present invention.

[0029] Figure 3 It is the schematic structural diagram of the pass-through surface grinding equipment in the present invention.

[0030] Figure 4 It is the schematic structural diagram of the pass-through surface cleaning equipment in the present invention.

[0031] Figure 5 It is the schematic structural diagram of the compound blanking equipment in the present invention.

[0032] Figure 6 It is the schematic structural diagram of the main flipping device and the auxiliary flipping device in the present invention.

[0033] Figure 7 It is the schematic structural diagram of the main flipping device and the auxiliary flipping device at the initial position in the present invention.

[0034] Figure 8 It is the schematic structural diagram when the first support arm and the second support arm are flipped 90 degrees at the first position in the present invention.

[0035] Figure 9 It is the state schematic diagram of the second support arm when the sheet material is temporarily stored on the second support arm in the present invention.

[0036] Figure 10 It is the schematic structural diagram of the combined welding workstation in the present invention.

[0037] In the figure: 1. Combined welding workstation; 11. Welding robot; 12. C-type position-changing device; 2. Pass-through milling and drilling equipment; 21. Milling cutter; 22. Clamping assembly; 3. Pass-through surface grinding equipment; 31. Transmission assembly; 32. Dust suction pipe; 33. Z-axis adjustment part; 34. Grinding wheel; 4. Pass-through surface cleaning equipment; 41. Smoke hood; 42. Abrasive wire brush roller; 43. Air knife; 44. Adjustment assembly; 45. Wiping assembly; 451. Rewinding roller; 452. Unwinding roller; 453. Free roller; 454. Wiping cloth; 46. Self-cleaner; 47. Sponge strip; 5. Multi-layer blanking equipment; 51. Plate feeding assembly; 52. Main flipping device; 521. Sliding assembly; 5211. Base; 5212. Slide rail; 5213. Pushing part; 5214. Slide block; 522. First flipping assembly; 5221. First support arm; 5222. First rotating hydraulic cylinder; 5223. Mounting seat; 5224. Support plate; 523. Micro-moving part; 53. Auxiliary flipping device; 531. Second flipping assembly; 5311. Second support arm; 5312. Second rotating hydraulic cylinder. Detailed implementation mode

[0038] Now, the present invention will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0041] Refer to Figure 1 , an automated continuous production line for laminated metal composite materials, successively including a pass-through fine shot blasting equipment, a pass-through milling and drilling equipment 2, a pass-through surface finishing equipment 3, a pass-through surface cleaning equipment 4, a foil coating and dressing equipment, a multi-layer blanking equipment 5, a hydraulic pressing and spot welding equipment, a combined welding workstation 1, and a post-treatment mechanism. The post-treatment mechanism includes a detection equipment, a constant temperature heating high-vacuum unit equipment, and a vacuum tube plugging equipment. The automated continuous production line also includes a controller, an intelligent overhead crane, and multiple RGV transfer vehicles.

[0042] The present invention is applicable to the large-scale continuous production of laminated dissimilar metal composite blanks. Such as the composite of carbon steel - stainless steel, carbon steel - titanium alloy, carbon steel - nickel alloy, stainless steel - titanium, nickel alloy, and laminated dissimilar rare metal alloys with similar melting points, etc.

[0043] The pass-through fine shot blasting equipment, the pass-through milling and drilling equipment 2, the pass-through surface finishing equipment 3, the pass-through surface cleaning equipment 4, the foil coating and dressing equipment, the multi-layer blanking equipment 5, the hydraulic pressing and spot welding equipment, and the combined welding workstation 1 are all provided with a transmission mechanism. The transmission mechanism automatically transports the plates through a plurality of rollers arranged for rotation. Multiple devices in this production line are electrically connected to the controller. The controller adopts a PLC control system and uses PLC logic programming control. A centralized control system and a monitoring image system for the PLCs of each device of the integrated production line are set up to monitor and control the operating state and operating sequence of the production line equipment, and to collect production process data for facilitating the regulation of the production volume and the quality of the combined blanks.

[0044] Among them, the pass-through fine shot blasting equipment is used for the preliminary polishing of the surface of the metal plate. The pass-through milling and drilling equipment 2 is used for milling the side edges of the upper and lower surfaces of the plate to produce grooves for subsequent welding. The pass-through surface finishing equipment 3 is used for further polishing the surface of the plate. The pass-through surface cleaning equipment 4 is used for cleaning the dust and debris remaining after milling and polishing the surface of the plate. The foil coating and dressing equipment is used for coating the surface of the plate. The multi-layer blanking equipment 5 is used for laminating and combining multiple plates together. The step-by-step composite blank hydraulic pressing and spot welding and the welding workstation are used for welding multiple plates together. The detection equipment, the multi-plate trolley type constant temperature heating equipment, the high-vacuum unit equipment, and the vacuum tube plugging equipment are used for the detection of welding quality and the post-treatment work of the welded plates.

[0045] Specifically, such as Figure 2As shown in the figure, the pass-through milling and drilling equipment 2 includes a transmission mechanism arranged on a frame. Along the transmission mechanism on the frame, multiple groups of milling cutters 21 are arranged. The milling cutters 21 are opposite to the upper and lower edges of the side wall of the plate in the longitudinal direction. A drill bit is also arranged on the frame for drilling installation holes for installing vacuum tubes. A clamping assembly 22 is also arranged on the frame for limiting the plate. The transmission mechanism includes multiple transmission rollers, and the transmission rollers can be controlled by a sprocket electromagnetic clutch.

[0046] As Figure 3 shown in the figure, the pass-through surface grinding equipment 3 includes a frame, a housing, a transmission mechanism, a grinding mechanism, and a dust removal mechanism. The length direction of the frame is arranged along the front-rear direction. The transmission mechanism includes multiple spaced transmission components 31. The grinding mechanism includes a frame and multiple grinding components arranged along the direction of the frame. The grinding components are arranged between adjacent transmission components 31. Each grinding component includes a set of grinding wheels 34 oppositely arranged on the upper and lower sides of the base surface. The grinding wheels 34 of the two sets of grinding wheels 34 in each grinding component are symmetrically arranged on the upper and lower sides of the base surface. Each set of grinding wheels 34 moves vertically along the Z-axis adjusting member 33. The Z-axis adjusting members 33 of the two sets of grinding wheels 34 in each grinding component are located on the upper and lower sides of the base surface. Along the advancing direction of the plate, the mesh number of the grinding wheels 34 in multiple grinding components gradually increases, so that the plate is ground from coarse to fine level by level during the process of passing through the grinding mechanism. Along the axial direction of the grinding wheel 34, the axial length of the grinding wheel 34 is greater than or equal to the width of the plate. The dust removal mechanism includes multiple suction pipes 32. The number of suction pipes 32 is the same as the number of grinding components, and is used to clean the debris and dust formed by grinding.

[0047] As Figure 4 shown in the figure, the pass-through surface cleaning equipment 4 includes a frame, a transmission mechanism, a first cleaning mechanism, and two second cleaning mechanisms. The transmission mechanism is arranged on the frame for transmitting the plate. The first cleaning mechanism includes a smoke hood 41, an abrasive wire brush roller 42, and an air knife 43. The smoke hood 41 is connected to the frame through an adjusting assembly 44. The adjusting assembly 44 is used to control the vertical movement of the smoke hood 41 to adjust the distance between the smoke hood 41 and the plate, and the smoke hood 41 is used for dust suction. The two second cleaning mechanisms are oppositely arranged on the upper and lower sides of the plate. The second cleaning mechanism includes a wiping assembly 45. The wiping assembly 45 includes a unwind roller 452, a winding roller 451, a pressing assembly, and a wiping cloth 454. The pressing assembly is located on the side of the unwind roller 452 and the winding roller 451 close to the plate. The pressing assembly includes multiple free rollers 453, a connecting plate, an elastic member, and a guiding member. The multiple free rollers 453 are arranged at intervals along the length direction of the frame. The multiple free rollers 453 are all connected to the connecting plate and are in contact with the plate for wiping the dust on the surface of the plate. The second cleaning mechanism also includes a self-cleaning device 46 and a sponge strip 47. The sponge strip 47 is arranged between the first cleaning mechanism and the unwind roller 452. The self-cleaning device 46 is arranged on the side of the unwind roller 452 and the winding roller 451 away from the plate.

[0048] As Figure 5 shown, the cascade blanking device 5 includes a mounting frame, a plate feeding assembly 51, a main flipping device 52 and an auxiliary flipping device 53. Among them, a plurality of plate feeding assemblies 51 are arranged along the X-axis direction, and the plurality of plate feeding assemblies 51 are arranged at intervals. The plate feeding assembly 51 is used to convey the plate along the X-axis direction. It should be noted that the plate feeding assembly 51 is slidably connected to the mounting frame along the Z-axis direction through a lifting device. Each plate feeding assembly 51 includes a frame, a plurality of transmission rollers arranged at intervals along the X-axis direction, and a driving source. The transmission rollers are rotatably connected to the frame. The ends of the plurality of transmission rollers are coaxially connected with gears, and the plurality of gears are synchronously driven in the same direction through a chain. The driving source is connected to the frame to drive the transmission rollers to rotate.

[0049] A plurality of main flipping devices 52 are provided. The main flipping devices 52 are arranged between adjacent plate feeding assemblies 51. The main flipping device 52 includes a sliding assembly 521, a first flipping assembly 522 and a micro-moving member 523. The first flipping assembly 522 is slidably connected to the mounting frame along the Y-axis direction through the sliding assembly 521. The sliding assembly 521 includes a base 5211, a slide rail 5212 and a pushing member 5213. The base 5211 is fixedly installed on the mounting frame and is located between adjacent plate feeding assemblies 51. The slide rail 5212 is fixedly installed on the base 5211, and the length direction of the slide rail 5212 is arranged along the Y-axis direction. A plurality of slide rails 5212 can be arranged along the X-axis direction. The first flipping group is connected to the sliding assembly 521 through a mounting seat 5223. A slider 5214 adapted to the slide rail 5212 is provided at the bottom of the mounting seat 5223. The mounting seat 5223 is slidably engaged with the slide rail 5212 through the slider 5214. The pushing member 5213 is installed on the base 5211, and the output end of the pushing member 5213 is connected to the mounting seat 5223. The pushing member 5213 can adopt a hydraulic cylinder.

[0050] Specifically, referring to Figure 6, the first flipping assembly 522 includes a first support arm 5221 and a first rotating hydraulic cylinder 5222. The first support arm 5221 is arranged in an L shape and includes a long plate and a short plate. The short plate is connected to one end of the long plate. The bent portion of the first support arm 5221 is hinged to the mounting seat 5223. The opening of the first support arm 5221 faces upward. One end of the first rotating hydraulic cylinder 5222 is hinged to the mounting seat 5223 at the end far from the hinge point between the mounting seat 5223 and the first support arm 5221, and the other end is hinged to the bottom of the long plate. A support plate 5224 is connected to the mounting seat 5223. The support plate 5224 is located on the side of the hinge point between the first rotating hydraulic cylinder 5222 and the mounting seat 5223 far from the hinge point between the mounting seat 5223 and the first support arm 5221. When the long plate of the first support arm 5221 is in a horizontal state, the long plate abuts against the support plate 5224. At this time, the short plate is located at the positive Y-axis end of the long plate. The micro-moving part 523 is an inductive oil cylinder. The micro-moving part 523 is installed on the side of the short plate far from the long plate, and the output end of the micro-moving part 523 penetrates through the short plate.

[0051] The auxiliary flipping device 53 includes a second flipping assembly 531. The second flipping assembly 531 includes a mounting seat 5223, a support plate 5224, a second support arm 5311 and a second rotating hydraulic cylinder 5312. The structure of the second flipping assembly 531 is the same as that of the first flipping assembly 522. The second flipping assembly 531 is located on the positive Y-axis side of the sheet feeding assembly 51, and the second flipping assembly 531 and the first flipping assembly 522 are arranged symmetrically with respect to the X-axis.

[0052] The auxiliary flipping device 53 and the main flipping device 52 together form a flipping mechanism. In each flipping mechanism, one or two auxiliary flipping devices 53 can be provided. The auxiliary flipping device 53 is provided on the positive X-axis side or the negative X-axis side of the main flipping device 52 or on both the positive and negative X-axis sides of the main flipping device 52.

[0053] The hydraulic pressing spot welding equipment includes a transmission mechanism, a hydraulic device arranged above the transmission mechanism through a frame body, and welding devices arranged on both sides of the transmission mechanism. The welding device can be a welding robot 11. The welding device is used for spot welding the edges of the sheet. The output end of the hydraulic device faces downward and acts on the top surface of the sheet group.

[0054] Refer to Figure 10 , the multi-station combined welding workstation 1 is composed of a welding robot 11, an external axis, and a track combination C-shaped positioner 12 and other units. Each intelligent welding unit consists of two sets of overhead rail cantilever single-gun double-arc double-wire MAG welding robots 11; and one set of track combination C-shaped positioner 12. The C-shaped positioner 12 is a rotatable C-shaped frame, and a transmission mechanism for fixing and transmitting sheets is arranged inside the C-shaped frame.

[0055] It should be noted that each individual device of this automated production line adopts PLC logic programming control. A centralized control system and a monitoring video system for the PLCs of each device on the integrated production line are set up to monitor and control the operating status and sequence of the production line devices, and to collect production process data for facilitating the regulation of production volume and the quality of combined blanks.

[0056] This automated production line may also include a central control system. The central control system can use an industrial computer as the upper computer to integrate the PLCs of each device on the production line for data collection and monitoring control. When producing different combined blanks, the operating sequences of the devices on the production line are different, and corresponding sequence control programs need to be written into the central control system to schedule the operation of the production line devices.

[0057] A production method for an automated continuous production line based on laminated metal composite materials includes the following steps:

[0058] S1, Loading

[0059] The base layer raw materials are placed on the RGV transporter through a gantry crane, and the base layer raw materials are fixed for stable transportation. After the RGV travels to the pass-through fine shot blasting equipment and outputs the base layer raw materials, it returns to its original position; after the intelligent gantry crane positions the cladding layer raw materials on the RGV transporter, the RGV travels to the drive roller table and outputs the cladding layer raw materials and then returns to its original position. The traveling speed of the RGV transporter ≤ 15 m / min; the driving speed of the RGV plate ≤ 20 m / min.

[0060] S2, Polishing

[0061] The RGV transporter transports the raw materials to the pass-through fine shot blasting equipment. The pass-through fine shot blasting equipment removes the scale on the upper and lower bonding surfaces or a single bonding surface of the base layer carbon steel slab, controls the shot diameter and hardness to remove the scale, so as to achieve a bonding surface cleanliness of Sa2.5; the bonding surface roughness is between Ra12.5 and Ra6.3. The operating processing speed of the equipment is 0.5 - 2 m / min, the speed of the plate entering and leaving the drive roller table ≤ 20 m / min, and the working driving speed of the plate is synchronized with the pass-through fine shot blasting equipment.

[0062] It should be noted that for the oxide film of stainless steel and non-ferrous metal laminates, it can directly enter the second stage for fine grinding by the pass-through surface grinding equipment without passing through the pass-through fine shot blasting equipment, so that the bonding surface roughness reaches between Ra6.3 and Ra3.2.

[0063] S3, Milling and Drilling

[0064] The base carbon steel plate is fed into the through-type milling and drilling equipment 2 by the RGV transporter, and the front end of the plate is advanced to the drilling position by the plate transmission mechanism. First, drilling is carried out at the vacuum pipe position, the middle position of the end of the base carbon steel plate is drilled vertically, and the middle position of the plate thickness is drilled horizontally, and the two holes are made to penetrate; after drilling is completed, the plate is pushed forward to mill the welding grooves on the upper and lower sides or the single-sided edges on both sides, and the groove milling is completed in one pass through the type. When the transmission mechanism pushes the plate forward, the sprocket electromagnetic clutch of the auxiliary main power transmission roller of the equipment is in the disconnected state; when the propulsion device stops running, the sprocket electromagnetic clutch of the auxiliary main power transmission roller closes to assist in driving the plate. During groove milling, the feeding speed of the transmission mechanism is 200 - 300 mm / min, and the transmission speed of the plate in and out is ≤ 20 m / min.

[0065] S4, Scale treatment

[0066] The RGV transporter receives the base plates after groove milling and drilling at the previous level and transports them to the next-level through-type surface finishing equipment 3 for finishing; it receives the clad materials transported by the roller table at the previous level and transports them to the next-level surface finishing equipment for scale treatment. The running speed of the RGV is ≤ 15 m / min; the plate transmission speed of the RGV is ≤ 20 m / min.

[0067] The through-type surface finishing equipment 3 performs finishing and leveling treatment on the upper and lower bonding surfaces or a single bonding surface of the base plates after shot blasting; it performs oxide layer treatment on the single bonding surface of the clad materials. The surface roughness of the treated bonding surface is between Ra6.3 and Ra3.2. The running speed of the plate during treatment is 0.5 - 2 m / min. After one-pass treatment through the type, it automatically enters the next-level surface cleaning equipment.

[0068] S5, Surface cleaning

[0069] The through-type surface cleaning equipment 4 performs cleaning treatment on the residual dust on the upper and lower bonding surfaces or a single bonding surface of the plates after finishing treatment. The plates are automatically fed in, and the first stage of the equipment performs strong blowing and dust suction; the second stage uses two sets of coiling wiping cloths 454 for wiping to make the surfaces to be bonded clean to the best state. The running speed of the plate during treatment is 0.5 - 2 m / min.

[0070] S6, Surface dressing

[0071] The foil dressing equipment has the function of automatically laying a foil-shaped alloy transition layer and coating a dry isolation agent. The equipment is divided into two sections: the first section of the equipment sets the intermediate transition layer when compounding active metals and automatically lays and fixes it; the second section is for the two same-material laminated materials in the middle of the clad rolling assembly.

[0072] Among them, when the two plates to be laminated are dissimilar plates, the first section of the equipment is fully covered with a single or alloy foil with a thickness of 0.02 - 0.05 mm that can prevent the formation of interfacial compounds between the two metals, and is fixed by multi-point automatic spot welding.

[0073] When the two plates to be laminated are the same kind of plates, the second section of the equipment automatically applies and quickly dries the anti-sticking isolation MgO preparation to the plates.

[0074] For single-sided and double-sided assembled laminated dissimilar metal materials in the single rolling composite process, the equipment can shut down and let the materials pass directly through.

[0075] S7, Laminating and assembling

[0076] The foil-applied plates enter the laminating and assembling equipment 5 for lamination. Taking the four-layer single-sided rolling lamination as an example: The previous equipment sequentially inputs the plates that need to be coated with the intermediate foil layer and the intermediate anti-sticking isolation layer into this equipment, and automatically adjusts them to the proper positions according to the set process sequence and plate size.

[0077] The first upper base plate is transported by the transport component 31. The plate on the transport component 31 is lowered and positioned by the lifting device, and the plate is placed on the first support arm 5221. The first support arm 5221 moves towards the second flipping component 531, and moves the plate from the initial position (as Figure 7 shown) to the first position first. The first support arm 5221 and the second support arm 5311 simultaneously move closer to each other and flip 90 degrees (as Figure 8 shown). At this time, the plate is located between the two support arm groups. Then, the first support arm 5221 continues to move along the Y direction, moves the plate towards the second support arm 5311, so that the plate abuts against the second support arm 5311. Then the first support arm 5221 returns to the initial position and rotates to 0 degrees, and the second support arm 5311 drives the plate to rotate to 80 degrees to temporarily store the plate (as Figure 9 shown). Similarly, the second upper laminated plate and the third lower laminated plate are input by the transport component 31 and transferred to the second flipping component 531 by the first flipping component 522 for temporary storage.

[0078] The fourth lower base plate is transported by the transmission assembly 31. The plate on the transmission assembly 31 is lowered and positioned via the lifting device, placing the plate on the first support arm 5221. The first support arm 5221 moves toward the second flip assembly 531, moving the plate from its initial position to the first position. The first support arm 5221 and the second support arm 5311 simultaneously approach each other and flip 90 degrees. At this point, the plate is located between the two support arm groups, and the micro-movement 523 lifts the second upper composite plate and the third lower composite plate to the set position. The second support arm 5311 can rotate toward the first flip assembly 522, rotating the multiple plates toward the first support arm 5221 so that the plates rest against the first support arm 5221. The first support arm 5221 brings the multiple plates back to their initial position and rotates to 0 degrees, while the second support arm 5311 returns to its original position. At this point, the transmission assembly 31 rises and continues to transport the assembled plates forward.

[0079] The composite assembly equipment 5 can perform single-rolling two-layer single-sided composite assembly and three-layer double-sided composite assembly; it can also perform composite rolling of four layers of single-sided composite assembly and seven layers of two single-sided + one double-sided composite assembly. For the middle layer of the composite composite assembly, different active metals are foiled and the same material is coated with a release agent.

[0080] The production of different combined billets requires different operating sequences for each piece of equipment on the production line. This requires programming the corresponding sequence control program into the central control system to schedule the production line equipment. It should be noted that variations in the width of the combined billets produced are recorded into the central control system, which then coordinates and adjusts the width anti-skewing limiters on each piece of equipment on the production line to ensure consistent workpiece positioning.

[0081] The operation sequence of different combined billets is as follows:

[0082] Single-sided composite assembly: composite board → base board.

[0083] Double-sided composite assembly: upper composite plate → base plate → lower composite plate.

[0084] Single-sided composite rolling assembly: upper base plate → upper cladding plate → lower cladding plate → lower base plate.

[0085] Single-sided and double-sided composite rolling assembly: upper base plate → upper cladding plate → middle upper cladding plate → middle base plate → middle lower cladding plate → lower cladding plate → lower base plate.

[0086] S8, compacting and spot welding, spot welding the stacked plates and the vacuum tube to fix their relative positions.

[0087] The laminated and assembled sheets at the previous level are fed into the hydraulic pressing and spot welding equipment as set. The hydraulic device presses down to clamp the sheets, and at the same time, the welding robots 11 on both sides perform multi-point spot welding and fixation by searching for positions at the semi-V-shaped openings of the laminated blanks. At the same time, automatic seal welding is carried out on the evacuated tubes inserted into the base layer. During the spot welding process, equipment such as the hydraulic device can be used to press the edges of the sheets tightly, thereby fixing the sheets and adapting to various combinations of sheets with different sizes.

[0088] S9, Welding combination

[0089] The spot-welded composite blank sheets are automatically fed into the RGV transporter and transported to each multi-station combined welding workstation 1 respectively. The traveling speed of the RGV ≤ 15 m / min; the sheet transmission speed of the RGV ≤ 20 m / min.

[0090] Working process of the multi-station combined welding workstation 1: After the laminated and assembled sheets fixed by spot welding are automatically fed into the track combined C-shaped equipment for positioning, the welding robots 11 perform multi-pass welding on the welding positions at both ends in the long direction of the sheet plane simultaneously. After the welding is completed, the robots return to their positions. The track combined C-shaped positioning and changing equipment 12 rotates 90 degrees for positioning, and the welding robots 11 follow to weld the long semi-V-shaped openings of the sheets. After the welding is completed, the robots return to their positions; the track combined C-shaped positioning and changing equipment 12 rotates the sheets to 180 degrees for positioning, and the robots weld the welding positions on the short sides of the sheets. After the welding is completed, the sheets are sent out to the RGV transporter for standby. The track combined C-shaped positioning and changing equipment 12 returns to the 0-degree position, and the RGV transporter feeds the sheets into the track combined C-shaped positioning and changing equipment 12 again, and then changes the position by 90 degrees to weld the other semi-V-shaped opening on the other side. After the welding is completed, the track combined C-shaped positioning and changing equipment 12 returns to the 0-degree position and sends out the sheets. The whole process is intelligently controlled, and each equipment is coordinated and linked. The traveling speed of the track combined C-shaped positioning and changing equipment 12 ≤ 15 m / min; the working transmission speed ≤ 20 m / min.

[0091] S10, Nondestructive testing

[0092] The RGV transporter receives the sheets welded by each intelligent welding unit and transports them to the testing equipment. The traveling speed of the RGV ≤ 15 m / min; the sheet transmission speed of the RGV ≤ 20 m / min.

[0093] The weld beads of the welded composite blanks are subjected to ultrasonic nondestructive testing. At the same time, helium detection is carried out on the vacuum leakage at the interlayer welding and the connection leakage of the evacuated tubes of the composite blanks, and the interlayer vacuum degree is monitored by a differential pressure vacuum gauge.

[0094] S11, Vacuum pumping treatment

[0095] The RGV transporter transports the tested composite blanks to the high-vacuum unit equipment. The equipment consists of a high-vacuum unit, multiple vacuum differential pressure detectors, and a multi-channel automatic distributor. The high-vacuum unit consists of a two-stage rotary vane vacuum pump and a molecular pump.

[0096] Vacuum pumping is carried out using a vacuum tube, and auxiliary heating is performed when multiple composite blanks are vacuum pumped using a multi-plate trolley type constant temperature heating device. The device can heat multiple composite blanks in a single loading, and the working temperature is ≤ 350 °C. The running speed of the plate trolley is 8 m / min.

[0097] After the vacuum pumping is completed, the vacuum tube of the composite blank after vacuum pumping is sealed and welded by a vacuum tube plugging device, and bent to a specific position to weld the protective cover. The vacuum tube plugging device consists of a high-frequency heater for stainless steel tubes, an automatic tube closing pliers, and a MAG welding robot 11.

[0098] In summary, this application is an integrated composite steel automatic continuous production line. Through equipment such as overhead cranes and RGV transport vehicles, each equipment is formed in series, and through PLC control, one-key command scheduling of the production line is achieved, and the running order of the workpieces on the production line is regulated, avoiding production losses caused by human operation errors and personnel operation errors. In this automatic continuous production line for assembling blanks, overhead cranes are only used at the head and tail workstations, namely, for feeding the base layer, the cladding layer, and discharging the composite blank, and are not used at other workstations, greatly reducing the potential production safety hazards. The processing procedures of each equipment on the production line are automatically controlled to ensure that the rejection rate of the composite assembled blank is zero. The cost is greatly reduced. Since automatic continuous production is formed, the use of personnel can be greatly reduced, the energy consumption of the equipment is reduced, and the consumption of consumables is controlled in the best state.

[0099] This automatic production line solves the production process technology and equipment defects in this technical field, eliminates potential production safety hazards, greatly improves the production output, reduces the production cost, and ensures high-quality production products. In terms of output, taking the carbon steel-stainless steel single-sided composite assembled blank as an example: when there are 2 through-type milling and drilling devices 2, 4 working units in the combined welding workstation 1, and 2 constant temperature heating devices (each single device can carry workpieces ≥ 150T), and the single blank weight is 30T, 400,000 tons of single-sided composite blanks can be produced annually.

[0100] Inspired by the above ideal embodiments based on the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An automated continuous production line for a laminated metal composite material, characterized in that, The automated continuous production line includes through-type fine shot blasting equipment, through-type milling and drilling equipment, through-type surface fine grinding equipment, through-type surface cleaning equipment, foil coating equipment, overlapping blank assembly equipment, hydraulic pressure spot welding equipment, combined welding workstation, testing equipment, multi-plate trolley constant temperature heating equipment, high vacuum unit equipment, and vacuum tube plugging equipment. The automated continuous production line also includes an intelligent overhead crane and multiple RGV conveyor vehicles. Through the transportation of the intelligent overhead crane or RGV conveyor vehicle, the plates are sequentially processed through the through-type fine shot blasting equipment, through-type milling and drilling equipment, through-type surface fine grinding equipment, through-type surface cleaning equipment, foil coating equipment, overlapping blank assembly equipment, hydraulic pressure spot welding equipment, combined welding workstation, testing equipment, constant temperature heating high vacuum unit equipment, and vacuum tube plugging equipment. The stacking assembly equipment includes: Mounting bracket, and The plate feeding components are arranged on the mounting frame at intervals along the plate transmission direction; A main turning device is provided between adjacent plate feeding assemblies and is used to turn over the plates on the plate feeding assemblies so that the plates are separated from the plate feeding assemblies; Auxiliary turning device, which is used to receive the plate from the main turning device; The main flipping device includes a sliding assembly, a first flipping assembly and a micro-moving part. The first flipping assembly is connected to the mounting frame by sliding along the Y-axis direction through the sliding assembly. The sliding assembly includes a base, a slide rail and a pushing member. The base is fixedly mounted on the mounting frame and is located between adjacent feeding plate assemblies. The slide rail is fixedly mounted on the base. The length direction of the slide rail is arranged along the Y-axis direction. Multiple slide rails can be arranged along the X-axis direction. The first flipping group is connected to the sliding assembly through the mounting seat. A slider adapted to the slide rail is provided at the bottom of the mounting seat. The mounting seat slides with the slide rail through the slider. The pushing member is mounted on the base, and the output end of the pushing member is connected to the mounting seat. The first flip assembly includes a first support arm and a first rotating hydraulic cylinder, the first support arm is arranged in an L shape, the first support arm includes a long plate and a short plate, the short plate is connected to one end of the long plate, the bending part of the first support arm is hinged to the mounting seat, the opening of the first support arm is arranged upward, one end of the first rotating hydraulic cylinder is hinged to the mounting seat away from one end of the hinged part of the mounting seat and the first support arm, and the other end is hinged to the bottom of the long plate, the mounting seat is connected to a support plate, the support plate is located on a side of the hinged part of the first rotating hydraulic cylinder and the mounting seat away from the hinged part of the mounting seat and the first support arm, when the long plate of the first support arm is in a horizontal state, the long plate abuts against the support plate, and at this time the short plate is located at one end of the positive direction of the Y-axis of the long plate; The micro-moving element is an induction oil cylinder, which is installed on the side of the short plate away from the long plate, and the output end of the micro-moving element passes through the short plate; The auxiliary flipping device includes a second flipping assembly, which includes a mounting base, a support plate, a second support arm, and a second rotary hydraulic cylinder. The structure of the second flipping assembly is the same as that of the first flipping assembly. The second flipping assembly is located on the positive Y-axis side of the plate feeding assembly, and the second flipping assembly and the first flipping assembly are arranged in a mirror-symmetrical manner along the X-axis direction. The auxiliary turning device and the main turning device together form a turning mechanism. In each turning mechanism, one or two auxiliary turning devices can be provided. The auxiliary turning device is arranged on one side of the positive X-axis direction or the negative X-axis direction of the main turning device, or on both the positive and negative sides of the X-axis of the main turning device.

2. The automated continuous production line for the laminated metal composite material according to claim 1, wherein Transfer components are provided in the pass-through shot blasting equipment, pass-through milling and drilling equipment, pass-through surface grinding equipment, pass-through surface cleaning equipment, foil application equipment, multi-layer blanking equipment, hydraulic pressing and spot welding equipment, and combined welding workstation. The transfer components automatically transport the plates through a plurality of rotatably arranged rollers.

3. The automated continuous production line for the laminated metal composite material according to claim 1, characterized in that, It also includes a controller. The controller adopts a PLC control system. The controller is electrically connected to the pass-through shot blasting equipment, pass-through milling and drilling equipment, pass-through surface grinding equipment, pass-through surface cleaning equipment, foil application equipment, multi-layer blanking equipment, hydraulic pressing and spot welding equipment, combined welding workstation, detection equipment, multi-plate trolley type constant temperature heating equipment, high vacuum unit equipment, and vacuum tube plugging equipment.

4. An automated continuous production method for a laminated metal composite material, applied to the automated continuous production line for the laminated metal composite material as described in claim 3, characterized in that, It includes the following steps Perform scale grinding treatment on the surface of the metal plate. At the same time, mill the welding grooves on the upper and lower edges on both sides of the metal plate after removing the scale. Clean the dust on the surface of the metal plate. Stack multiple cleaned and milled plates together, press the multi-layer plates to extract the air between adjacent plates, spot weld adjacent plates together, and then weld adjacent plates.

5. The automated continuous production method of the laminated metal composite material according to claim 4, characterized in that, During the process of milling the welding groove, drill a vertical hole in the middle of the end of the base carbon steel plate and a horizontal hole in the middle of the plate thickness, and make the two holes communicate to process the vacuum tube position, so as to weld and extract the vacuum tube between the composite plates.

6. The automated continuous production method of the laminated metal composite material according to claim 4, characterized in that, Apply a dressing on the surface of the plate before stacking the plates. When the plates to be stacked are dissimilar plates, a single or alloy foil with a thickness of 0.02 - 0.05 mm that can prevent the formation of intermetallic compounds at the interface of the two metals is fully laid between the plates; when the two plates to be stacked are the same type of plate, an anti-sticking isolation MgO preparation is automatically applied and quickly dried on the plates.

7. The automated continuous production method of the laminated metal composite material according to claim 4, characterized in that When the multi-layer blanking equipment stacks the plates, the first plate is transported by the plate feeding component, and the plate is placed on the main turning device. The main turning device moves towards the auxiliary turning device, and the plate is first moved from the initial position to the first position. The main turning device and the auxiliary turning device simultaneously approach and turn 90 degrees towards each other. At this time, the plate is clamped between the main turning device and the auxiliary turning device. Then, the main turning device continues to move along the Y direction, moving the plate towards the auxiliary turning device so that the plate abuts against the auxiliary turning device. Then the main turning device returns to the initial position and rotates to 0 degrees, and the auxiliary turning device drives the plate to rotate to 80 degrees to temporarily store the plate. Similarly, multiple other plates are input by the plate feeding component and transferred to the auxiliary turning device through the main turning device for temporary storage. After moving multiple plates to be stacked between the main turning device and the auxiliary turning device, the auxiliary turning device rotates towards the main turning device, rotates multiple plates towards the main turning device so that the plates abut against the main turning device. The main turning device brings multiple plates back to the initial position and rotates to 0 degrees, and at the same time the auxiliary turning device returns to its position, and the plate feeding component rises to continue transporting the combined plates forward.

8. The automated continuous production method of the laminated metal composite material according to claim 4, characterized in that, Put the welded multi-layer composite plate into a constant-temperature heating high-vacuum unit equipment to evacuate the air and conduct auxiliary heating on it.

9. The automated continuous production method of the laminated metal composite material according to claim 8, characterized in that, When evacuating the air, the working temperature for heating the plate ≤ 350 °C.

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