Titanium-steel composite plate preparation device and method

Abstract

The application relates to the field of metal composite rolling technology and discloses a titanium-steel composite plate preparation device and method, which comprises first conveying roller tracks, an automatic welding system, second conveying roller tracks and a rolling mill arranged in sequence from left to right; the first conveying roller tracks are provided with an automatic polishing system, the first conveying roller tracks are used for conveying titanium plates and steel plates into the automatic polishing system, and the automatic polishing system is used for polishing the titanium plates and the steel plates; a clamping and overturning mechanism is arranged on one side of the automatic welding system and the automatic polishing system, the clamping and overturning mechanism is used for transferring the polished titanium plates and the steel plates into the automatic welding system for welding; a heating furnace is used for heating the welded plates, and the rolling mill is used for rolling the heated plates. The application solves the technical problems of unstable surface treatment quality, low assembly precision, low production efficiency and insufficient automation degree in the preparation of titanium-steel composite plates, and realizes full-process automatic control of the preparation of titanium-steel composite plates.

Description

Technical Field

[0001] This invention relates to the field of metal composite material rolling technology, and in particular to an apparatus and method for preparing titanium-steel composite plates. Background Technology

[0002] Titanium and titanium alloys possess outstanding advantages such as low density, high hardness, high specific strength, excellent mechanical properties at both room and high temperatures, strong resistance to chemical corrosion, and good biocompatibility. However, when used as structural components, their forming costs are extremely high, severely limiting their large-scale application in engineering structures. To balance the advantages of titanium with cost control, the preparation of composite materials by combining titanium with other metals has become an important development direction for the efficient utilization of titanium.

[0003] 304 stainless steel, as a high-strength and low-cost structural material, has good corrosion resistance, low-temperature performance, processing performance and welding performance. However, in harsh environments such as oceans and oil wells with high temperature, high humidity and chloride ion content, the surface passivation film is easily destroyed by high temperature and salt spray, which leads to pitting corrosion and crevice corrosion, resulting in a significant reduction in service life.

[0004] Based on the performance characteristics of the two materials mentioned above, titanium-steel composite plates can achieve complementary performance advantages. They leverage the excellent corrosion resistance and mechanical properties of titanium while reducing material costs through the use of stainless steel, demonstrating the potential to replace titanium alone and showing broad application prospects. The rolling process of titanium-steel composite plates, as a key manufacturing step, has become a research hotspot in both military and civilian fields.

[0005] The following key technical defects still exist in the existing titanium-steel composite plate manufacturing process, which seriously restrict its high-quality and large-scale production:

[0006] 1. Technical defects in the surface treatment process: The surface treatment of titanium plates and steel plates mostly adopts manual grinding methods (such as angle grinders and sandpaper), which has the following problems:

[0007] 1) The grinding force and uniformity are difficult to control precisely, resulting in poor consistency of the surface treatment effect of the board;

[0008] 2) Oxide layers or impurities are easily left on the surface, which directly affects the bonding strength of the composite interface of the titanium-steel composite plate;

[0009] 3) Manual polishing is inefficient and generates dust pollution, posing safety hazards to personnel.

[0010] 4) There is a lack of automated grinding and cleaning integrated devices designed for the surface characteristics of titanium steel composite plates. Insufficient attention is paid to the need for automated surface treatment. Limited by the equipment integration design capabilities, it is impossible to achieve automated connection between the grinding and cleaning process and subsequent processes.

[0011] 2. Technical defects in the billet assembly and welding process: Traditional billet assembly processes rely on manual alignment of titanium and steel plates and initial fixation using simple positioning blocks, which presents the following problems:

[0012] 1) The low accuracy of manual positioning and the large alignment error between the titanium plate and the steel plate can easily lead to the failure of subsequent welding and sealing, which in turn causes local non-composite defects at the interface of the rolled composite plate.

[0013] 2) Manual assembly is time-consuming and cannot meet the efficiency requirements of large-scale automated production;

[0014] 3) There is a lack of automated billet assembly devices with clamping, flipping and precise alignment functions. A billet assembly positioning and welding coordination mechanism based on automated control has not been established, and it is impossible to achieve fully automated operation in the billet assembly process.

[0015] Therefore, there is an urgent need for a device and method for preparing titanium-steel composite plates to solve the above problems. Summary of the Invention

[0016] The purpose of this invention is to provide an apparatus and method for preparing titanium-steel composite plates to solve the problems existing in the prior art.

[0017] To achieve the above objectives, the present invention provides the following solution: The present invention provides a titanium-steel composite plate preparation apparatus, comprising:

[0018] The components arranged from left to right are: the first conveyor roller conveyor, the automatic welding system, the second conveyor roller conveyor, and the rolling mill.

[0019] An automatic grinding system is provided on the first conveyor roller conveyor. The first conveyor roller conveyor is used to convey titanium plates and steel plates into the automatic grinding system. The automatic grinding system performs separate grinding on the titanium plates and steel plates.

[0020] A clamping and flipping mechanism is located on one side of the automatic welding system and the automatic grinding system. The clamping and flipping mechanism is used to transfer the ground titanium plate and steel plate into the automatic welding system for welding.

[0021] A heating furnace is located on one side of the second conveyor roller table. The heating furnace is used to heat the welded sheet metal, and the rolling mill is used to roll the heated sheet metal.

[0022] According to the present invention, a titanium-steel composite plate preparation device is provided, wherein the automatic grinding system includes a housing, two cavities are provided inside the housing, a support truss is provided inside the cavity, a grinding machine is provided on the support truss, and two lifting components are provided inside the housing, each corresponding to one of the two cavities. The titanium plate and the steel plate are respectively stopped in the two cavities by the two lifting components and are ground by the grinding machine.

[0023] According to the present invention, a titanium-steel composite plate preparation device is provided, wherein the lifting component includes a hydraulic cylinder, which is fixedly connected to the bottom end inside the housing, and a lifting platform is fixedly connected to the telescopic end of the hydraulic cylinder, and limit blocks are provided on both sides of the top end of the lifting platform.

[0024] According to the present invention, a titanium-steel composite plate preparation apparatus is provided, wherein a grinding belt is installed at the output end of the grinding machine used for grinding the titanium plate, and an angle grinding disc is installed at the output end of the grinding machine used for grinding the steel plate.

[0025] According to the present invention, a titanium-steel composite plate preparation device is provided on the housing, wherein a plurality of air nozzles are provided on the housing, the air nozzles are connected to an external blower through an air blowing pipe, and a powder collection box is provided at the bottom of the housing.

[0026] According to the present invention, a titanium-steel composite plate preparation device is provided, wherein the clamping and flipping mechanism includes a slide rail, a movable stage is provided on the slide rail, and a clamping arm is mounted on the movable stage via a rotating component.

[0027] According to the present invention, a titanium-steel composite plate preparation device is provided, wherein the automatic welding system includes a welding table connected to an external gas cylinder. The top of the welding table is provided with a multi-axis welding torch, a gantry frame, a limiting strip, and a feeding mechanism. The gantry frame is provided with a suction device, a cutting blade, and a hot melt chuck. The cutting blade is used to cut the gas pipe on the suction device, and the hot melt chuck is used to hot melt the cut gas pipe. The multi-axis welding torch is connected to an external electrically controlled welding machine box, and the multi-axis welding torch is provided with a temperature sensor and a flaw detection sensor.

[0028] According to the present invention, a titanium-steel composite plate preparation device includes a feeding mechanism comprising a gear set disposed on the welding table, a slide connected to the gear set by threads, four rails fixedly connected inside the welding table, and a plurality of frame rails disposed between the four rails, the frame rails extending out of the top of the welding table through the slide rails and covering the plate.

[0029] According to the present invention, a titanium-steel composite plate preparation device further includes a support platform, on which a conveyor chain is provided. The two ends of the conveyor chain are respectively connected to the heating furnace and the second conveyor roller, and a positioning sensor is installed on the second conveyor roller.

[0030] A method for preparing a titanium-steel composite plate includes the following steps:

[0031] The titanium plate and the steel plate are transported to the automatic grinding system for separate grinding.

[0032] The polished titanium plate and steel plate are transferred to the automatic welding system for welding via the clamping and flipping mechanism.

[0033] The welded plates are then conveyed to the heating furnace for heating.

[0034] The heated sheet material is fed to a rolling mill for rolling to obtain titanium-steel composite plate.

[0035] Compared with the prior art, the present invention has the following advantages and technical effects:

[0036] This invention provides an apparatus and method for preparing titanium-steel composite plates. In use, titanium and steel plates are transported to an automatic grinding system for separate grinding. A clamping and flipping mechanism then transfers the ground titanium and steel plates to an automatic welding system for welding. The welded plates are then transported to a heating furnace for heating, and finally to a rolling mill for rolling to obtain the titanium-steel composite plate. This invention, by setting up an automatic grinding system with independent cavities, can simultaneously perform separate, automated grinding of titanium and steel plates. This not only ensures high efficiency but also avoids cross-contamination, guaranteeing the cleanliness and activation of the surfaces to be composited. The clamping and flipping mechanism facilitates transfer between workstations, avoiding contact and contamination of the already ground and cleaned surfaces by manual handling, thus ensuring a high-strength composite interface. The automatic welding system achieves precision and automation in the welding process. This application solves the technical problems existing in the preparation process of titanium-steel composite plates, such as unstable surface treatment quality, low blank assembly accuracy, low production efficiency, and insufficient automation. It realizes full-process automated control of the preparation process of titanium-steel composite plates, promotes the large-scale and high-quality production of titanium-steel composite plates, and enhances their application competitiveness in the engineering field. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a side view of the overall structure of the present invention;

[0039] Figure 2 This is a top view of the overall structure of the present invention;

[0040] Figure 3 This is a schematic diagram of the internal structure of the automatic polishing system of the present invention;

[0041] Figure 4 This is a schematic diagram of the lifting platform structure of the present invention;

[0042] Figure 5 This is a schematic diagram of the clamping and flipping mechanism of the present invention;

[0043] Figure 6 This is a schematic diagram of the automatic welding system of the present invention;

[0044] Figure 7 This is a schematic diagram of the gantry structure of the present invention;

[0045] Figure 8 This is a schematic diagram of the feeding mechanism of the present invention;

[0046] Figure 9 This is a schematic diagram of the sensor structure on the multi-axis welding torch of the present invention;

[0047] Figure 10 This is a welding process diagram for the present invention;

[0048] Among them, 1. First conveyor roller; 2. Titanium plate; 3. Steel plate; 4. Automatic grinding system; 401. Grinding belt; 402. Support truss; 403. Grinding machine; 404. Air nozzle; 405. Angle grinding disc; 406. Powder collection box; 407. Blower; 408. Air blowing pipe; 409. Hydraulic cylinder; 410. Limit block; 411. Lifting platform; 5. Display; 6. Clamping and flipping mechanism; 601. Moving table; 602. Rotating component; 603. Clamping arm; 604. Slide rail; 7. Automatic welding system; 70 1. Multi-axis welding torch; 7011. Temperature sensor; 7012. Flaw detection sensor; 702. Gantry frame; 703. Limiting strip; 704. Suction device; 705. Cutting disc; 706. Hot melt chuck; 707. Feeding mechanism; 7071. Gear set; 7072. Slide table; 7073. Track; 7074. Frame; 8. Heating furnace; 9. Rolling mill; 10. Gas cylinder; 11. Electrically controlled welding machine box; 12. Conveyor chain; 13. Support platform; 14. Electrical control cabinet; 15. Positioning sensor; 16. Second conveyor roller. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] Reference Figures 1-10 This invention provides an apparatus for preparing titanium-steel composite plates, comprising:

[0052] The components arranged from left to right are: the first conveyor roller conveyor 1, the automatic welding system 7, the second conveyor roller conveyor 16, and the rolling mill 9.

[0053] An automatic grinding system 4 is provided on the first conveyor roller 1. The first conveyor roller 1 is used to convey titanium plate 2 and steel plate 3 into the automatic grinding system 4. The automatic grinding system 4 performs separate grinding on titanium plate 2 and steel plate 3.

[0054] The clamping and flipping mechanism 6 is located on one side of the automatic welding system 7 and the automatic grinding system 4. The clamping and flipping mechanism 6 is used to transfer the ground titanium plate 2 and steel plate 3 into the automatic welding system 7 for welding.

[0055] The heating furnace 8 is located on one side of the second conveyor roller table 16. The heating furnace 8 is used to heat the welded plates, and the rolling mill 9 is used to roll the heated plates.

[0056] In one embodiment of the present invention, during use, titanium plate 2 and steel plate 3 are conveyed to automatic grinding system 4 for separate grinding, and the ground titanium plate 2 and steel plate 3 are transferred to automatic welding system 7 for welding by clamping and flipping mechanism 6. The welded plate is conveyed to heating furnace 8 for heating, and the heated plate is conveyed to rolling mill 9 for rolling to obtain titanium-steel composite plate.

[0057] It also includes a display 5 and an electrical control cabinet 14. The display 5 monitors the temperature of the welding area and the flaw detection status in real time.

[0058] Further optimization of the scheme: the automatic grinding system 4 includes a housing, with two cavities inside the housing. A support truss 402 is installed inside the cavity, and a grinding machine 403 is installed on the support truss 402. Two lifting components are installed inside the housing, and the two lifting components correspond to the two cavities respectively. The titanium plate 2 and the steel plate 3 are stopped in the two cavities by the two lifting components and are ground by the grinding machine 403.

[0059] In one embodiment of the present invention, the two cavities are isolated by a clamping plate, and the two plates are ground separately to avoid cross-contamination. The support truss 402 realizes the position adjustment of the grinding machine 403, and the grinding machine 403 is used to grind the plates.

[0060] The design is further optimized so that the lifting component includes a hydraulic cylinder 409, which is fixedly connected to the bottom of the housing. The telescopic end of the hydraulic cylinder 409 is fixedly connected to a lifting platform 411, and limit blocks 410 are provided on both sides of the top of the lifting platform 411.

[0061] In one embodiment of the present invention, a hydraulic cylinder 409 drives a lifting platform 411 to rise, lifting the plate, and a limit block 410 constrains the displacement of the plate in the width direction to prevent deviation and ensure accurate grinding.

[0062] The scheme is further optimized by installing a grinding belt 401 at the output end of the grinding machine 403 used for grinding titanium plate 2, and an angle grinding disc 405 at the output end of the grinding machine 403 used for grinding steel plate 3.

[0063] In one embodiment of the present invention, for titanium materials, abrasive belt 401 is used for gentle and precise grinding; for steel materials, angle grinding disc 405 is used for efficient and powerful grinding.

[0064] The design is further optimized by installing several air nozzles 404 on the housing. The air nozzles 404 are connected to an external blower 407 through an air blowing pipe 408. A powder collection box 406 is installed at the bottom of the housing.

[0065] In one embodiment of the present invention, dust is cleaned by a set air nozzle 404, and the cleaned dust is collected in a dust collection box 406.

[0066] The scheme is further optimized. The clamping and flipping mechanism 6 includes a slide rail 604, a movable stage 601 is provided on the slide rail 604, and a clamping arm 603 is installed on the movable stage 601 via a rotating component 602.

[0067] In one embodiment of the present invention, the moving stage 601 moves on the slide rail 604, clamps the plate for transfer by the clamping arm 603, and at the same time realizes the flipping of the plate by the rotating component 602.

[0068] Further optimizing the scheme, the automatic welding system 7 includes a welding table connected to an external gas cylinder 10. The top of the welding table is equipped with a multi-axis welding torch 701, a gantry frame 702, a limiting strip 703, and a feeding mechanism 707. The gantry frame 702 is equipped with a suction device 704, a cutting blade 705, and a hot melt chuck 706. The cutting blade 705 is used to cut the gas pipe on the suction device 704, and the hot melt chuck 706 is used to hot melt the cut gas pipe. The multi-axis welding torch 701 is connected to an external electric control welding machine box 11, and the multi-axis welding torch 701 is equipped with a temperature sensor 7011 and a flaw detection sensor 7012.

[0069] In one embodiment of the present invention, the multi-axis welding torch 701 achieves multi-angle, full-coverage welding, ensuring uniform and firm welds. The temperature sensor 7011 and the flaw detection sensor 7012 monitor the welding quality in real time, adjust parameters in a timely manner, and reduce the defect rate. In use, the steel plate 3 is first positioned, and the steel plate 3 is moved to the designated position by the clamping arm 603. Then, the titanium plate 2 is flipped and positioned, and the titanium plate 2 is rotated 180° so that the polished surface is facing down and placed on top of the steel plate 3 to complete the assembly. After the two plates are assembled, the limiting strip 703 clamps the plates, the welding sealing cover falls down, and the protective gas is introduced into the sealing cover through the gas cylinder 10 to create an inert welding environment. The feeding mechanism 707 feeds the materials around the assembled plates to form a welding frame. The multi-axis welding torch 701 is started according to the preset program to perform the welding operation.

[0070] Gas handling: During the welding process, the suction device 704 first removes the residual gas between the two plates, then the cutting blade 705 cuts off the gas pipe, and the hot melt clamp 706 clamps the gas pipe port to achieve internal sealing of the plate.

[0071] The design is further optimized. The feeding mechanism 707 includes a gear set 7071 set on the welding table. A slide table 7072 is threadedly connected to the gear set 7071. Four rails 7073 are fixedly connected inside the welding table. Several frame frames 7074 are set between the four rails 7073. The frame frames 7074 extend out of the top of the welding table through the slide table 7072 and cover the sheet metal.

[0072] In one embodiment of the present invention, the rotation of the gear set 7071 drives the threaded slide 7072 to rise, and when the slide 7072 rises, it drives the frame 7074 stored below to rise and surround the assembled plate.

[0073] Further optimization of the scheme also includes a support platform 13, on which a conveyor chain 12 is provided. The two ends of the conveyor chain 12 are respectively connected to the heating furnace 8 and the second conveyor roller 16. A positioning sensor 15 is installed on the second conveyor roller 16.

[0074] In one embodiment of the present invention, the welded plate is first transported to the heating furnace 8 for heating by the conveyor chain 12 set on the support platform 13. After heating, it is then transported to the second conveyor roller 16 and finally to the rolling mill 9 for rolling. The conveyor chain 12 realizes the smooth and efficient transmission of the welded plate to the heating furnace, avoiding plate deformation or displacement. The positioning sensor 15 ensures that the plate is accurately positioned before heating, improves heating uniformity and subsequent rolling quality, and reduces the risk of production interruption.

[0075] A method for preparing a titanium-steel composite plate includes the following steps:

[0076] Titanium plate 2 and steel plate 3 are conveyed into automatic grinding system 4 for separate grinding;

[0077] The polished titanium plate 2 and steel plate 3 are transferred to the automatic welding system 7 for welding by the clamping and flipping mechanism 6.

[0078] The welded plates are then conveyed to heating furnace 8 for heating.

[0079] The heated sheet material is fed to rolling mill 9 for rolling to obtain titanium-steel composite plate.

[0080] In one embodiment of the present invention, during use, the operator places the titanium plate 2 and the steel plate 3 at the starting end of the first conveyor roller 1. The first conveyor roller 1 is activated, feeding the two plates into and guiding them into two independent sealed cavities to achieve physical isolation. The hydraulic cylinders 409 at the bottom of each cavity are activated, lifting the lifting platform 411. The grinding machine 403 starts grinding the plates according to a preset program. After the grinding process is completed, the two ground plates are precisely placed in the designated position on the welding table by the clamping and flipping mechanism 6 to complete the assembly. The plates are then welded by the multi-axis welding gun 701. The welded composite plate blank is sent out by the second conveyor roller 16. When the plate blank reaches a specific position, the positioning sensor 15 sends a signal, and the plate blank is smoothly fed into the heating furnace 8 by the conveyor chain 12 for uniform and thorough heating to reach the optimal plastic deformation temperature. The heated plate blank is then sent to the rolling mill 9 to be rolled into the required titanium-steel composite plate.

[0081] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0082] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A device for preparing titanium-steel composite plates, characterized in that, include: The first conveyor roller (1), the automatic welding system (7), the second conveyor roller (16), and the rolling mill (9) are arranged sequentially from left to right. An automatic grinding system (4) is provided on the first conveying roller (1). The first conveying roller (1) is used to convey titanium plate (2) and steel plate (3) into the automatic grinding system (4). The automatic grinding system (4) performs separate grinding on the titanium plate (2) and the steel plate (3). The clamping and flipping mechanism (6) is located on one side of the automatic welding system (7) and the automatic grinding system (4). The clamping and flipping mechanism (6) is used to transfer the polished titanium plate (2) and the steel plate (3) into the automatic welding system (7) for welding. A heating furnace (8) is located on one side of the second conveyor roller table (16). The heating furnace (8) is used to heat the welded plate, and the rolling mill (9) is used to roll the heated plate. The automatic grinding system (4) includes a housing, which contains two cavities. A support truss (402) is installed in each cavity, and a grinding machine (403) is installed on the support truss (402). Two lifting components are installed in the housing, each corresponding to one of the two cavities. The titanium plate (2) and the steel plate (3) are respectively stopped in the two cavities by the two lifting components and are ground by the grinding machine (403). A grinding belt (401) is installed at the output end of the grinding machine (403) used to grind the titanium plate (2), and an angle grinding disc (405) is installed at the output end of the grinding machine (403) used to grind the steel plate (3). The lifting component includes a hydraulic cylinder (409), which is fixedly connected to the bottom of the housing. A lifting platform (411) is fixedly connected to the telescopic end of the hydraulic cylinder (409). Both sides of the top of the lifting platform (411) are provided with... Limiting block (410); The clamping and flipping mechanism (6) includes a slide rail (604), a moving stage (601) is provided on the slide rail (604), and a clamping arm (603) is installed on the moving stage (601) via a rotating component (602); The automatic welding system (7) includes a welding table, which is connected to an external gas cylinder (10). The top of the welding table is provided with a multi-axis welding torch (701), a gantry frame (702), a limiting strip (703), and a feeding mechanism (707). The feeding mechanism (707) includes a gear set (7071) provided on the welding table. A slide table (7072) is threadedly connected to the gear set (7071). Four tracks (7073) are fixedly connected inside the welding table. Several frames (7074) are provided between the four tracks (7073). The frames (7074) extend out of the top of the welding table through the slide table (7072) and cover the plate.

2. The titanium-steel composite plate preparation device according to claim 1, characterized in that: The housing is provided with a plurality of air nozzles (404), which are connected to an external blower (407) through an air blowing pipe (408). A powder collection box (406) is provided at the bottom of the housing.

3. The titanium-steel composite plate preparation device according to claim 1, characterized in that: The gantry (702) is equipped with an air suction device (704), a cutting blade (705), and a hot melt chuck (706). The cutting blade (705) is used to cut the air pipe on the air suction device (704), and the hot melt chuck (706) is used to hot melt the cut air pipe. The multi-axis welding torch (701) is connected to an external electric control welding machine box (11). The multi-axis welding torch (701) is equipped with a temperature sensor (7011) and a flaw detection sensor (7012).

4. The titanium-steel composite plate preparation device according to claim 1, characterized in that: It also includes a support platform (13), on which a conveyor chain (12) is provided. The two ends of the conveyor chain (12) are respectively connected to the heating furnace (8) and the second conveyor roller (16), and a positioning sensor (15) is installed on the second conveyor roller (16).

5. A method for preparing a titanium-steel composite plate, applicable to the titanium-steel composite plate preparation apparatus described in claim 1, characterized in that, Includes the following steps: The titanium plate (2) and the steel plate (3) are placed at the starting end of the first conveyor roller (1). The first conveyor roller (1) is started, and the two plates are sent into the automatic grinding system (4) and guided into two independent sealed cavities respectively. The hydraulic cylinder (409) at the bottom of each cavity is started, and the lifting platform (411) is lifted. The grinding machine (403) starts grinding the plates according to the preset program. The polished titanium plate (2) and steel plate (3) are transferred to the designated position of the welding table by the clamping and flipping mechanism (6) to complete the assembly, and the plates are welded by the multi-axis welding gun (701). The welded composite slab is conveyed by the second conveyor roller (16) to the heating furnace (8) for heating; The heated plate is fed to the rolling mill (9) for rolling to obtain titanium-steel composite plate.

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