Automatic continuous production line and production method for layered metal composite material

Abstract

The invention relates to the technical field of metal composite material manufacturing, in particular to an automatic continuous production line and a production method for a layered metal composite material. The production line comprises pass-type fine shot blasting equipment, pass-type milling and drilling equipment, pass-type surface fine grinding equipment, pass-type surface cleaning equipment, cascade assembly equipment, hydraulic compression spot welding equipment, a combined welding workstation, detection equipment, multi-plate trolley type constant-temperature heating equipment, high-vacuum unit equipment and vacuum tube plugging equipment. The system further comprises an intelligent crane and a plurality of RGV conveying vehicles, and series production of all the devices is achieved through conveying of the intelligent crane or the RGV conveying vehicles. The production line overcomes the defects of the production technology and equipment in the technical field, eliminates potential safety hazards of production, greatly improves the production yield, reduces the production cost, and ensures high quality of produced products.

Description

Technical Field

[0001] The present application relates to the technical field of metal composite material manufacturing, and in particular to an automated continuous production line and a production method for layered metal composite materials. Background Art

[0002] Before hot rolling and cladding, metal composite plates, strips and coils, whether single-sided or double-sided single-rolled composite billets or stacked rolled composite billets, need to go through the process of surface oxide scale removal, welding groove milling, sealing welding and groove welding between composite assembly layers, and vacuuming between composite layers.

[0003] The process methods used in the existing production lines are complicated, and the production equipment is mostly operated as a single unit. In particular, the flat-plate stacking assembly schemes are mostly complex in structure, with low compatibility of auxiliary machines, and a small number of operating conditions. Such schemes generally work in adsorption, hoisting or open-loop states, and operate one material at a time at the same time. As a result, the existing production lines frequently use manual labor and cranes, resulting in low production capacity and high safety hazards. In order to ensure production safety and product quality and significantly improve production capacity, a method for automated continuous production of layered metal composite materials is provided. Summary of the invention

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

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

[0006] The technical solution adopted by the present invention to solve its technical problem is: An automated continuous production line for layered metal composite materials, comprising 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 and dressing equipment, overlapping blank assembly equipment, hydraulic pressing and spot welding equipment, combined welding workstation, testing equipment, multi-plate trolley-type constant temperature heating equipment, high vacuum unit equipment, and vacuum tube plugging equipment. The automated continuous production line also comprises an intelligent crane and multiple RGV conveyor vehicles. Through the transportation of the intelligent crane or the 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 and dressing equipment, overlapping blank assembly equipment, hydraulic pressing and spot welding equipment, combined welding workstation, testing equipment, constant temperature heating high vacuum unit equipment, and vacuum tube plugging equipment.

[0007] 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 coating equipment, multi-layer blanking equipment, hydraulic pressing and spot welding equipment, and combined welding workstation. The transmission component automatically transports the sheet metal through a plurality of rotatably arranged rollers.

[0008] Further, it further includes a controller. The controller adopts a PLC control system. The controller 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 coating equipment, multi-layer blanking equipment, hydraulic pressing and spot welding equipment, combined welding workstation, detection equipment, multi-sheet trolley type constant temperature heating equipment, high vacuum unit equipment, and vacuum tube plugging equipment.

[0009] Further, the multi-layer blanking equipment includes a mounting frame, and a sheet feeding component, which is arranged on the mounting frame at intervals along the sheet metal transmission direction; a main flipping device, which is arranged between adjacent sheet feeding components and is used to flip the sheet metal on the sheet feeding component so that the sheet metal is separated from the sheet feeding component; an auxiliary flipping device, which is used to receive the sheet metal on the main flipping device.

[0010] 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 Polish the surface of the metal sheet to remove the scale. At the same time, mill the welding grooves on the upper and lower edges of both sides of the metal sheet after removing the scale. Clean the dust on the surface of the metal sheet. Stack multiple cleaned and milled sheets together, press the multi-layer sheets to extract the air between adjacent sheets, spot weld adjacent sheets together, and then weld adjacent sheets.

[0011] 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 the vacuum tube position, so as to weld and extract the vacuum tube between the composite sheets.

[0012] Further, apply a dressing on the surface of the sheet before stacking the sheets. When the sheets to be stacked are dissimilar sheets, lay a single or alloy foil with a thickness of 0.02 - 0.05 mm that can prevent the formation of intermetallic compounds between the two metals; when the two sheets to be stacked are the same kind of sheets, automatically apply and quickly dry the anti-sticking isolation MgO preparation on the sheets.

[0013] Further, when the laminated blanking equipment laminates the plates, the first plate is transported by the plate feeding assembly. The plate is placed on the main flipping device, and the main flipping device moves towards the auxiliary flipping device, moving the plate from the initial position to the first position first. The main flipping device and the auxiliary flipping device approach and flip 90 degrees simultaneously. At this time, the plate 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 plate towards the auxiliary flipping device so that the plate 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 plate to 80 degrees to temporarily store the plate. Similarly, multiple other plates are input by the plate feeding assembly and transferred to the auxiliary flipping device through the main flipping device for temporary storage. After moving multiple plates to be laminated between the main flipping device and the auxiliary flipping device, the auxiliary flipping device rotates towards the main flipping device, rotating multiple plates towards the main flipping device so that the plates abut against the main flipping device. The main flipping device brings multiple plates 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 plate feeding assembly rises to continue transporting the combined plates forward.

[0014] Further, the welded multi-layer composite plate is placed in a constant temperature heating high-vacuum unit equipment for vacuum pumping and auxiliary heating.

[0015] Further, when vacuum pumping, the working temperature for heating the plate ≤ 350 degrees.

[0016] The beneficial effects of the present invention are as follows: This application is an integrated composite steel automated 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 automated continuous production line, overhead cranes are only used at the head and tail workstations, namely, the base layer, the multi-layer feeding, and the composite blank discharging. Other workstations do not use overhead cranes, greatly reducing potential production safety hazards. The processing procedures of each equipment on the production line are automatically controlled, ensuring that the rejection rate of composite blanking is zero and significantly reducing costs. Since automated continuous production is formed, a large number of personnel can be reduced, the equipment energy consumption is reduced, and the consumption of consumables is controlled in the best state. Description of the Drawings

[0017] The present invention will be further described below in conjunction with the drawings and embodiments.

[0018] Figure 1 It is the production flow chart of the automated continuous production line of the laminated metal composite material in the present invention.

[0019] Figure 2 It is the structural schematic diagram of the passing type milling and drilling equipment in the present invention.

[0020] Figure 3 It is a schematic structural diagram of the through-type surface grinding equipment in the present invention.

[0021] Figure 4 It is a schematic structural diagram of the through-type surface cleaning equipment in the present invention.

[0022] Figure 5 It is a schematic structural diagram of the cascade blanking equipment in the present invention.

[0023] Figure 6 It is a schematic structural diagram of the main turning device and the auxiliary turning device in the present invention.

[0024] Figure 7 It is a schematic structural diagram of the main turning device and the auxiliary turning device in the initial position of the present invention.

[0025] Figure 8 It is a schematic structural diagram of the present invention when in the first position, with the first support arm and the second support arm turned 90 degrees.

[0026] Figure 9 It is a schematic diagram of the state of the second support arm when the sheet material is temporarily stored on the second support arm in the present invention.

[0027] Figure 10 It is a schematic structural diagram of the combined welding workstation in the present invention.

[0028] In the figure: 1. Combined welding workstation; 11. Welding robot; 12. C-shaped position-changing equipment; 2. Through-type milling and drilling equipment; 21. Milling cutter; 22. Clamping assembly; 3. Through-type surface grinding equipment; 31. Transmission assembly; 32. Dust suction pipe; 33. Z-axis adjustment part; 34. Grinding wheel; 4. Through-type 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-cleaning device; 47. Sponge strip; 5. Cascade blanking equipment; 51. Sheet feeding assembly; 52. Main turning device; 521. Sliding assembly; 5211. Base; 5212. Slide rail; 5213. Pushing part; 5214. Slide block; 522. First turning assembly; 5221. First support arm; 5222. First rotating hydraulic cylinder; 5223. Mounting seat; 5224. Support plate; 523. Micro-moving part; 53. Auxiliary turning device; 531. Second turning assembly; 5311. Second support arm; 5312. Second rotating hydraulic cylinder. Detailed implementation manners

[0029] The present invention will now be described in further 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.

[0030] 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. Therefore, it should not be construed 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.

[0031] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may 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.

[0032] Refer to Figure 1 , an automated continuous production line for laminated metal composite materials, successively including a through-type fine shot blasting device, a through-type milling and drilling device 2, a through-type surface grinding device 3, a through-type surface cleaning device 4, a foil application and dressing device, a multi-layer blanking device 5, a hydraulic pressing and spot welding device, a combined welding workstation 1, and a post-treatment mechanism. The post-treatment mechanism includes a detection device, a constant temperature heating high-vacuum unit device, and a vacuum tube plugging device. The automated continuous production line also includes a controller, an intelligent overhead crane, and multiple RGV transport vehicles.

[0033] 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.

[0034] The pass-through fine shot blasting equipment, pass-through milling and drilling equipment 2, pass-through surface grinding equipment 3, pass-through surface cleaning equipment 4, foil coating equipment, laminating and blanking equipment 5, hydraulic pressing and spot welding equipment, and combined welding workstation 1 are all equipped with a transmission mechanism. The transmission mechanism automatically transports the plates through a plurality of rotatably arranged rollers. A plurality of devices in this production line are all electrically connected to a controller. The controller adopts a PLC control system and uses PLC logic programming for control. A centralized control system and a monitoring image system for the PLCs of each device in 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 laminated blanks.

[0035] Among them, the pass-through fine shot blasting equipment is used for the preliminary polishing of the surface of metal plates. The pass-through milling and drilling equipment 2 is used for milling the side edges of the upper and lower surfaces of the plates to produce grooves for subsequent welding. The pass-through surface grinding equipment 3 is used for further polishing the surface of the plates. The pass-through surface cleaning equipment 4 is used to clean the dust and debris remaining after milling and polishing the surface of the plates. The foil coating equipment is used for coating on the surface of the plates. The laminating and blanking equipment 5 is used for laminating and combining multiple plates together. The step-type composite blank hydraulic pressing, spot welding and welding workstation is used for welding multiple plates together. The inspection equipment, multi-plate trolley type constant temperature heating equipment, high vacuum unit equipment, and vacuum tube plugging equipment are used for the inspection of welding quality and the post-welding treatment of the plates.

[0036] Specifically, as Figure 2 shown, the pass-through milling and drilling equipment 2 includes a transmission mechanism arranged on the frame. Along the transmission mechanism on the frame, there are multiple groups of milling cutters 21. 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 an installation hole for installing a vacuum tube. A clamping assembly 22 is also arranged on the frame for limiting the plate. The transmission mechanism includes a plurality of driving rollers, and the driving rollers can be controlled by a sprocket electromagnetic clutch.

[0037] As Figure 3As 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 a plurality of spaced - apart transmission components 31. The grinding mechanism includes a frame and a plurality of 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 disposed oppositely 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 through a 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 sheet, the mesh number of the grinding wheels 34 in the plurality of grinding components gradually increases, so that the sheet 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 sheet. The dust removal mechanism includes a plurality of dust suction pipes 32. The number of dust suction pipes 32 is the same as the number of grinding components and is used to clean the debris and dust formed by grinding.

[0038] As Figure 4 shown, 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 sheet. 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 component 44. The adjusting component 44 is used to control the vertical movement of the smoke hood 41 to adjust the distance between the smoke hood 41 and the sheet. 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 sheet. The second cleaning mechanism includes a wiping component 45. The wiping component 45 includes a unwind roller 452, a winding roller 451, a pressing component, and a wiping cloth 454. The pressing component is located on the side of the unwind roller 452 and the winding roller 451 close to the sheet. The pressing component includes a plurality of free rollers 453, a connecting plate, an elastic member, and a guiding member. The plurality of free rollers 453 are spaced along the length direction of the frame. The plurality of free rollers 453 are all connected to the connecting plate and are in contact with the sheet for wiping the dust on the surface of the sheet. The second cleaning mechanism also includes a self - cleaner 46 and a sponge strip 47. The sponge strip 47 is arranged between the first cleaning mechanism and the unwind roller 452. The self - cleaner 46 is arranged on the side of the unwind roller 452 and the winding roller 451 away from the sheet.

[0039] As Figure 5As 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 spaced apart. 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.

[0040] 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 be a hydraulic cylinder.

[0041] 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. The first support arm 5221 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 hinged portion 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 hinged portion between the first rotating hydraulic cylinder 5222 and the mounting seat 5223 far from the hinged portion 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 away from the long plate, and the output end of the micro-moving part 523 penetrates through the short plate.

[0042] 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. The second flipping assembly 531 and the first flipping assembly 522 are arranged symmetrically with respect to the X-axis.

[0043] 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.

[0044] 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.

[0045] Refer to Figure 10 , the multi-station combined welding workstation 1 is composed of multiple units such as a welding robot 11 and an external axis and a track combination C-type positioner 12. 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-type positioner 12. The C-type positioner 12 is a rotatable C-shaped frame, and a transmission mechanism for fixing and transmitting sheets is arranged inside the C-shaped frame.

[0046] 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 collect production process data for facilitating the regulation of production volume and the quality of combined blanks.

[0047] This automated production line may also include a central control system. The central control system can use an industrial control 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 each device on the production line are different, and corresponding sequence control programs need to be written in the central control system to schedule the operation of the production line devices.

[0048] A production method for an automated continuous production line based on laminated metal composite materials includes the following steps: S1, Loading Place the base raw material on the RGV transporter through a gantry crane, fix the base raw material for stable transportation, and after the RGV travels to the pass-through fine shot blasting equipment and outputs the base raw material, it returns to its original position; after the intelligent gantry crane positions the cladding raw material on the RGV transporter, the RGV travels to the drive roller table and outputs the cladding raw material 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.

[0049] S2, Polishing The RGV transporter transports the raw material 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 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 exiting 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.

[0050] 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 a 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.

[0051] S3, Milling and Drilling The base carbon steel plate is conveyed into the passing-through 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 vertically drilled, and the middle position of the plate thickness is horizontally drilled, 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 equipment. 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 off state; when the propulsion device stops running, the sprocket electromagnetic clutch of the auxiliary main power transmission roller is closed to assist in driving the plate. During groove milling, the feed speed of the transmission mechanism is 200 - 300 mm / min, and the transmission speed of the plate in and out is ≤ 20 m / min.

[0052] S4, Scale treatment The RGV transporter receives the base plate after groove milling and drilling at the previous level and transports it to the next-level passing-through surface grinding equipment 3 for grinding treatment; it receives the clad material transported by the previous-level conveyor roller and transports it to the next-level surface grinding equipment for scale treatment. The RGV traveling speed is ≤ 15 m / min; the RGV plate transmission speed is ≤ 20 m / min.

[0053] The passing-through surface grinding equipment 3 performs grinding and leveling treatment on the upper and lower bonding surfaces or a single bonding surface of the base plate after shot peening; performs oxide layer treatment on the single bonding surface of the clad material. The surface roughness of the treated bonding surface is between Ra6.3 and Ra3.2. The plate running and processing speed is 0.5 - 2 m / min. After one-pass treatment through the equipment, it automatically enters the next-level surface cleaning equipment.

[0054] S5, Surface cleaning The passing-through 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 plate after grinding treatment. The plate is 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 surface to be bonded clean to the best state. The plate running and processing speed is 0.5 - 2 m / min.

[0055] S6, Surface dressing The foil dressing equipment has the functions 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.

[0056] Among them, when the two plates to be clad are dissimilar plates, the first section of the equipment uses 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 for full paving, and is fixed by multi-point automatic spot welding.

[0057] When the two plates to be laminated are of the same type, the second stage of the equipment automatically coats and quickly dries the MgO preparation for anti-sticking isolation of the plates.

[0058] For single- and double-sided assembled laminated dissimilar metal materials in the single rolling composite process, the equipment can shut down to allow the materials to pass directly through.

[0059] S7, Laminated assembly The plates after foil application enter the laminated assembly 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 in place according to the set process sequence and plate size.

[0060] 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 approach and flip 90 degrees towards each other simultaneously (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 rotates the plate to 80 degrees to temporarily store the plate (as Figure 9 shown). Similarly, the second upper cladding plate and the third lower cladding 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.

[0061] The fourth lower 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 to the first position first. The first support arm 5221 and the second support arm 5311 approach and flip 90 degrees towards each other simultaneously. At this time, the plate is located between the two support arm groups. The micro-moving part 523 jacks up the second upper cladding plate and the third lower cladding plate to the set position. The second support arm 5311 can rotate towards the first flipping component 522, rotate multiple plates towards the first support arm 5221, so that the plates abut against the first support arm 5221. The first support arm 5221 brings the multiple plates back to the initial position and rotates to 0 degrees, and at the same time the second support arm 5311 returns to its original position. At this time, the transport component 31 rises to continue transporting the assembled plates forward.

[0062] The multi-layer blanking equipment 5 can perform single-rolling two-layer single-sided multi-layer blanking and three-layer double-sided multi-layer blanking; it can also perform stacked-rolling single-sided four-layer multi-layer blanking and two single-sided + one double-sided seven-layer multi-layer blanking. For the intermediate layer of the stacked-rolling composite blank, dissimilar active metal foil is applied or the same material is coated with a release agent.

[0063] To produce different combined blanks, the operating sequences of the equipment 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 equipment. It should be noted that when the width dimension of the combined blank changes, it is written into the central control system, and the central control system schedules and uniformly adjusts the width deviation prevention limit devices of each equipment on the production line to make the positions of the workpieces uniform in the production line.

[0064] The multi-layer running sequences of different combined blanks are as follows: Single-sided composite blank: The composite layer board → the base layer board.

[0065] Double-sided composite blank: The upper composite layer board → the base layer board → the lower composite layer board.

[0066] Single-sided composite stacked-rolling blank: The upper base layer board → the upper composite layer board → the lower composite layer board → the lower base layer board.

[0067] Single-double-sided composite stacked-rolling blank: The upper base layer board → the upper composite layer board → the middle upper composite layer board → the middle base layer board → the middle lower composite layer board → the lower composite layer board → the lower base layer board.

[0068] S8, press and spot weld, spot weld the stacked plates and the evacuated tube to fix their relative positions.

[0069] The plates after the previous multi-layer blanking are fed into the hydraulic press and spot welding equipment according to the setting. The hydraulic device presses down to clamp the plates, and at the same time, the welding robots 11 on both sides search for the positions of the semi-V-shaped openings of the multi-layer blank and perform multi-point spot welding to fix them. At the same time, the evacuated tube inserted into the base layer is automatically sealed and welded. During the spot welding process, equipment such as the hydraulic device can be used to press the edges of the plates tightly to fix the plates and adapt to various combinations of plates with different sizes.

[0070] S9, welding combination The composite blank plates fixed by spot welding are automatically fed into the RGV transport vehicle and transported to each multi-station combined welding workstation 1 respectively. The running speed of the RGV ≤ 15 m / min; the plate transmission speed of the RGV ≤ 20 m / min.

[0071] The working process of the multi-station combined welding workstation 1: After the laminated blank plates fixed by spot welding are automatically fed into the track combination C-type equipment for positioning, the welding robot 11 simultaneously performs multiple passes of welding on the welding positions at both ends of the long side of the plate plane. After the welding is completed, the robot returns to its original position. The track combination C-type positioning and changing equipment 12 rotates 90 degrees for positioning, and the welding robot 11 follows to weld the long-side semi-V groove of the plate. After the welding is completed, the robot returns to its original position. The track combination C-type positioning and changing equipment 12 rotates the plate to 180 degrees for positioning, and the robot welds the short-side welding positions of the plate. After the welding is completed, the plate is sent out to the RGV transport vehicle for standby. The track combination C-type positioning and changing equipment 12 returns to the 0-degree position, and the RGV transport vehicle feeds the plate into the track combination C-type positioning and changing equipment 12 again, and then changes the position by 90 degrees to weld the other side semi-V groove. After the welding is completed, the track combination C-type positioning and changing equipment 12 returns to the 0-degree position and sends out the plate. The whole process is intelligently controlled, and each device is coordinated and linked. For the track combination C-type positioning and changing equipment 12, the traveling speed ≤ 15 m / min; for the workpiece transfer transmission speed ≤ 20 m / min.

[0072] S10, Non-destructive testing The RGV transport vehicle receives the plates completed by welding in each intelligent welding unit and transports them to the testing equipment. The RGV traveling speed ≤ 15 m / min; the RGV plate transmission speed ≤ 20 m / min.

[0073] The welded joints of the composite blanks after welding are subjected to ultrasonic non-destructive testing. At the same time, helium detection is carried out on the vacuum leakage between the layers of the composite blanks and the leakage of the vacuum tube connection, and the interlayer vacuum degree is monitored by a differential pressure type vacuum gauge.

[0074] S11, Vacuum pumping treatment The RGV transport vehicle 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.

[0075] Vacuum pumping treatment is carried out using a vacuum tube, and a multi-plate trolley type constant temperature heating equipment is used for auxiliary heating when evacuating multiple composite blanks. The equipment can heat and load multiple composite blanks at a time, and the working temperature ≤ 350 degrees. The running speed of the plate trolley is 8 m / min.

[0076] After the vacuum pumping is completed, the vacuum tube of the composite blank after vacuum pumping is sealed and welded through a vacuum tube plugging device, and the protective cover is welded at a specific position after bending. The vacuum tube plugging device consists of a stainless steel tube high-frequency heater, an automatic tube closing pliers, and a MAG welding robot 11.

[0077] In summary, this application is an integrated composite steel automatic continuous production line. Through equipment such as overhead cranes and RGV conveyors, 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 automatic continuous production line for assembling billets, only overhead cranes are used at the head and tail workstations, namely for feeding the base layer, the cladding layer, and discharging the composite billets, and no overhead cranes are used at other workstations, greatly reducing 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 billets is zero, 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 optimal state.

[0078] This automatic production line solves the production process technology and equipment defects in this technical field, eliminates potential production safety hazards, greatly increases production output, reduces production costs, and ensures high-quality production products. In terms of output, taking the carbon steel-stainless steel single-sided composite billet as an example: when there are 2 through-type milling and drilling equipment 2, 4 working units in the combined welding workstation 1, and 2 constant temperature heating equipment (each unit can carry workpieces ≥ 150T), and the single billet weighs 30T, 400,000 tons of single-sided composite billets can be produced annually.

[0079] Inspired by the ideal embodiments of the present invention described above, 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 layered metal composite materials, characterized in that: The automated continuous production line comprises a through-type fine shot blasting device, a through-type milling and drilling device (2), a through-type surface fine grinding device (3), a through-type surface cleaning device (4), a foil coating and dressing device, a stacking blank assembly device (5), a hydraulic pressing and spot welding device, a combined welding workstation (1), 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 also comprises an intelligent crane and a plurality of RGV conveyor vehicles. Through the transportation of the intelligent crane or the RGV conveyor vehicle, the plates are sequentially processed through the through-type fine shot blasting device, the through-type milling and drilling device (2), the through-type surface fine grinding device (3), the through-type surface cleaning device (4), the foil coating and dressing device, the stacking blank assembly device (5), the hydraulic pressing and spot welding device, the combined welding workstation (1), the detection device, the constant temperature heating high vacuum unit device, and the vacuum tube plugging device.

2. The automated continuous production line of layered metal composite materials according to claim 1, characterized in that: The through-type fine shot blasting equipment, through-type milling and drilling equipment (2), through-type surface fine grinding equipment (3), through-type surface cleaning equipment (4), foil coating equipment, stacking assembly equipment (5), hydraulic pressing spot welding equipment, and combined welding workstation (1) are all provided with a transmission component, and the transmission component automatically transports the plate by means of a plurality of rotating rollers.

3. The automated continuous production line of layered metal composite materials according to claim 1, characterized in that: The device also includes a controller, which adopts a PLC control system. The controller is electrically connected to a through-type fine shot blasting device, a through-type milling and drilling device (2), a through-type surface fine grinding device (3), a through-type surface cleaning device (4), a foil coating device, a stacking assembly device (5), a hydraulic pressing spot welding device, a combined welding workstation (1), a detection device, a multi-plate trolley-type constant temperature heating device, a high vacuum unit device, and a vacuum tube plugging device.

4. The automated continuous production line of layered metal composite materials according to claim 1, characterized in that: The stacking assembly equipment (5) comprises: Mounting bracket, and A plate delivery assembly (51), wherein the plate delivery assembly (51) is arranged on the mounting frame at intervals along the plate transmission direction; A main turning device (52), the main turning device (52) being arranged between adjacent plate-feeding assemblies (51) and used for turning over the plate on the plate-feeding assemblies (51) so that the plate is separated from the plate-feeding assemblies (51); An auxiliary turning device (53), wherein the auxiliary turning device (53) is used to receive the plate on the main turning device (52).

5. An automated continuous production method for layered metal composite materials, applied to the automated continuous production line for layered metal composite materials as claimed in claim 4, characterized in that: The following steps are included: Grinding the surface of the metal sheet for oxide scale; At the same time, the upper and lower edges of both sides of the metal plate after the oxide scale is removed are milled for welding grooves; Clean the dust on the surface of metal sheets; Stack multiple cleaned and milled plates together, press the multiple layers of plates to extract the air between adjacent plates, spot weld the adjacent plates together, and then weld the adjacent plates.

6. The method for automated continuous production of layered metal composite materials according to claim 5, characterized in that: In the process of milling the welding groove, a vertical hole is drilled in the middle of the end of the base carbon steel plate and a horizontal hole is drilled in the middle of the plate thickness, and the two holes are connected to machine the vacuum tube position so that the vacuum tube can be welded between the composite plates.

7. The method for automated continuous production of layered metal composite materials according to claim 5, characterized in that: Before stacking the plates, a dressing is applied on the surface of the plates. When the plates to be stacked are of different types, a single or alloy foil with a thickness of 0.02~0.05mm is fully spread between the plates to prevent the formation of interface compounds between the two metals. When the two plates to be stacked are of the same type, the plates are automatically coated with an anti-sticking isolation MgO preparation and quickly dried.

8. The method for automated continuous production of layered metal composite materials according to claim 5, characterized in that: When the stacking blank assembly equipment (5) stacks the plates, the first plate is transported by the plate feeding assembly (51) and the plate is placed on the main turning device (52). The main turning device (52) moves toward the auxiliary turning device (53) and moves the plate from the initial position to the first position. The main turning device (52) and the auxiliary turning device (53) simultaneously approach each other and turn 90 degrees. At this time, the plate is clamped between the main turning device (52) and the auxiliary turning device (53). Then, the main turning device (52) continues to move along the Y direction and moves the plate toward the auxiliary turning device (53) so that the plate abuts against the auxiliary turning device (53). Then, the main turning device (52) returns to the initial position and rotates back to 0 degrees. The auxiliary turning device (53) rotates the plates to 80 degrees for temporary storage. Similarly, other multiple plates are input from the plate feeding assembly (51) and transferred to the auxiliary turning device (53) through the main turning device (52) for temporary storage. After the multiple plates to be stacked are moved between the main turning device (52) and the auxiliary turning device (53), the auxiliary turning device (53) rotates toward the main turning device (52) to rotate the multiple plates toward the main turning device (52) so that the plates are against the main turning device (52). The main turning device (52) brings the multiple plates back to the initial position and rotates to 0 degrees. At the same time, the auxiliary turning device (53) returns to its original position, and the plate feeding assembly (51) rises to continue to transport the assembled plates forward.

9. The method for automated continuous production of layered metal composite materials according to claim 5, characterized in that: The welded multi-layer composite sheet is placed in a constant temperature heating high vacuum unit for vacuuming and auxiliary heating.

10. The method for automated continuous production of layered metal composite materials according to claim 9, characterized in that: When vacuuming, the working temperature of heating the plate is ≤350 degrees.

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