Electron beam welding equipment and process

Abstract

The present invention provides an electron beam welding device and process. The present invention relates to the field of welding technology and is used for welding strip metal. The device comprises a welding chamber, wherein an electron beam welding body and a clamping and conveying device for limiting and conveying the strip metal are provided inside the welding chamber. The clamping and conveying device comprises a first conveying device located on a first side of the strip metal and a second conveying device located on a second side of the strip metal. The first conveying device and the second conveying device are both belt conveying devices. The first conveying device comprises two sets of first conveying belt pulleys arranged in parallel. The surfaces of the first conveying belt pulleys are provided with first conveying belts. The surfaces of the first conveying belts are provided with limiting components for accommodating filling medium. In the clamping and conveying process of the present invention, surface contact is achieved through the belt conveying device, thereby increasing the area of ​​the clamping and limiting. Synchronous movement during the clamping and limiting and welding processes improves the stability of the overall clamping.

Description

Technical Field

[0001] The present application relates to the field of welding, and in particular to an electron beam welding device and process. Background Art

[0002] Electron beam welding does not require the use of welding rods. It uses a high-speed electron beam to locally heat and melt the material to achieve welding. It can continuously and efficiently weld different types of materials.

[0003] By utilizing the characteristics of electron beam welding, welding can be completed during the continuous movement of strip metal materials, thereby improving the efficiency and quality of strip metal welding. In order to ensure that the strip metal can move in a directional manner within the welding chamber, multiple sets of support conveyor rollers need to be set on its moving path. The support conveyor rollers can clamp the strip metal while controlling the directional movement of the strip metal to complete continuous welding.

[0004] However, when conveying by conveyor rollers, the contact area between the conveyor rollers and the strip is limited and is a line contact. In theory, the contact area can be increased and the stability of the clamping conveying can be improved by reducing the size of the conveyor rollers and increasing the number of conveyor rollers. However, this is difficult to achieve in actual welding operations, and the surface contacted by the conveyor rollers and the strip metal is always in a state of relative motion. The stability of the clamping conveying needs to be improved, especially when there is deviation in the surface size of some strip metals. The stability during welding is poor, which affects the quality of the final welded product. Summary of the Invention

[0005] In view of the above problems, embodiments of the present application are proposed to provide an electron beam welding device and process.

[0006] In response to the above problems, the present invention provides an electron beam welding device and process. During the clamping and conveying process, the present invention achieves surface contact through a belt conveyor device, which increases the area of ​​clamping and limiting. The synchronous movement during clamping and limiting and welding improves the overall clamping stability.

[0007] In order to solve the above problems, the technical solution adopted by the present invention is:

[0008] An electron beam welding device is used for welding strip metal, including a welding chamber, wherein an electron beam welding body and a clamping and conveying device for limiting the conveying of the strip metal are arranged inside the welding chamber, the clamping and conveying device includes a first conveying device located on the first side of the strip metal and a second conveying device located on the second side of the strip metal, the first conveying device and the second conveying device are both belt conveying devices, the first conveying device includes two groups of first conveying belt pulley groups arranged in parallel, the surface of the first conveying belt pulley group is provided with a first conveying belt, the surface of the first conveying belt is provided with a limiting component for accommodating a filling medium, the limiting component is provided with multiple limit assemblies along the length direction of the first conveying belt, and multiple limit assemblies are located on the moving path of the strip metal, the limiting component has elasticity and is pressed to fit with the surface of the strip metal for longitudinal limitation.

[0009] Preferably, the filling medium is electrorheological fluid, the limiting assembly includes a strip-shaped limiting capsule, a flexible first conductive strip and a second conductive strip are provided on the outside of the limiting capsule, and a conductive device cooperating with the first conductive strip and the second conductive strip is also provided in the welding chamber.

[0010] Preferably, the conductive device includes a conductive end and a conductive mounting seat, the conductive end is fixedly connected to the conductive mounting seat, and the conductive end is located on the moving path of the first conductive strip and the second conductive strip.

[0011] Preferably, the first conveying device further comprises a plurality of first supporting rollers, which are arranged at intervals and located inside the first conveying belt to press the first conveying belt tightly.

[0012] Preferably, the distance between two adjacent first support rollers is X, the limiting bag extends along the length direction of the first conveyor belt, and the length of the first conveyor belt is greater than 2X.

[0013] Preferably, the second conveying device and the electron beam welding body are symmetrically arranged in two groups, and the two groups of the second conveying devices have opposite conveying directions for conveying two groups of strip metals in opposite directions.

[0014] Preferably, the second conveying device is provided with a cooling device on the side away from the first conveying device, the cooling device includes a third conveying belt wheel group and a cooling belt sleeved on the surface of the third conveying belt wheel group, the second conveying device includes a second conveying belt wheel group and a second conveying belt sleeved on the surface of the second conveying belt wheel group, and the linear speed of the cooling belt is the same as the linear speed of the second conveying belt.

[0015] Preferably, the cooling belt is closed on both sides to form a cooling chamber, the first end of the cooling chamber is connected to a first pipe for cooling gas to enter, and the second end is connected to a second pipe for cooling gas to discharge, and a cleaning device is provided on the moving path of the strip metal, and the end of the second pipe is located outside the cleaning device.

[0016] Preferably, a limiting device is further provided inside the welding chamber, and the limiting device comprises two limiting rollers arranged at intervals, and the limiting rollers are located on both sides of the strip metal for lateral limiting.

[0017] An electron beam welding process, using the above-mentioned electron beam welding equipment, includes the following steps: S1, controlling the direction of the strip metal to pass through the welding chamber, and starting the electron beam welding body during the direction movement of the strip metal to complete continuous welding; S2, during the continuous welding process, controlling the synchronous direction movement of the first conveying device and the second conveying device, completing the longitudinal limitation of the strip metal from both sides to ensure the stability of the strip metal during the welding process.

[0018] The beneficial effects of the present invention are:

[0019] Compared with the prior art, the above-mentioned belt conveyor device can realize clamping and limiting of the strip metal, and in the process of clamping and limiting, the strip metal located in the middle is driven to move synchronously. The strip metal and the first conveyor belt will not move relative to each other during the clamping and conveying process, thereby ensuring the stability of the overall clamping; and after the pressure of the limiting component increases, the filling medium inside it can flow toward the outside or the thinner area, further enhancing the stability of the fit between the first conveyor belt and the strip metal, ensuring the stability of the strip metal during the electron beam welding process, and improving the quality of the final product; in the process of clamping and conveying of the present invention, surface contact is achieved through the belt conveyor device, thereby increasing the area of ​​clamping and limiting, and the synchronous movement during clamping and limiting and welding improves the stability of the overall clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 For the present invention Figure 1 Schematic diagram of the side structure.

[0023] Figure 3 For the present invention Figure 2 AA section structural diagram.

[0024] Figure 4 For the present invention Figure 2 BB-direction cross-sectional structural diagram.

[0025] Figure 5 For the present invention Figure 2 Enlarged structural diagram at C.

[0026] Figure 6 For the present invention Figure 3 The enlarged structural diagram at D is shown.

[0027] Figure 7 For the present invention Figure 4 Enlarged structural diagram at E.

[0028] In the figure: 100, support bracket; 200, welding chamber; 210, electron beam welding body; 300, strip metal; 310, first welding part; 320, second welding part; 400, first conveyor device; 410, first drive shaft; 420, first conveyor pulley set; 430, first conveyor belt; 440, first support roller; 441, first support shaft; 442, first roller body; 450, limit assembly; 451, limit capsule; 452, first conductive strip; 453, second Conductive bar; 500, second conveying device; 510, second drive shaft; 520, second conveyor pulley set; 530, second conveyor belt; 540, second support roller; 541, second support shaft; 542, second roller body; 600, cooling device; 610, third drive shaft; 620, third conveyor pulley set; 630, cooling belt; 700, limiting device; 710, limiting roller; 800, cleaning device; 900, conductive device; 910, conductive end; 920, conductive mounting seat. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the specific embodiments of this application and the corresponding drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] In order to solve the problems in the background technology, refer to the attached Figure 1 -Attached Figure 7An electron beam welding device is used to weld strip metal 300, including a welding chamber 200, inside which is arranged an electron beam welding body 210 and a clamping and conveying device for limiting the conveying of the strip metal 300. During the clamping and conveying process of the strip metal 300, the electron beam welding body 210 emits an electron beam flow toward the position where the strip metal 300 needs to be welded to locally heat and melt the material to achieve welding.

[0031] Specifically, the clamping and conveying device includes a first conveying device 400 located on the first side of the strip metal 300 and a second conveying device 500 located on the second side of the strip metal 300. The first conveying device 400 and the second conveying device 500 are both belt conveying devices. The first conveying device 400 and the second conveying device 500 can clamp and limit the strip metal 300 located in the middle from both sides to ensure the stability of the strip metal 300 in the clamped state. The strip metal 300 here includes a first welding part 310 and a second welding part 320. The first welding part 310 and the second welding part 320 can be clamped and conveyed by the strip metal 300 and the first conveying device 400, and are clamped and conveyed to the relative position of the electron beam welding body 210 to complete the welding to form a whole.

[0032] The first conveying device 400 here includes two groups of first conveyor pulley groups 420 arranged in parallel, and the first conveyor belt 430 is sleeved on the surface of the first conveyor pulley group 420. There is a predetermined distance between the two first conveyor belts 430, which can allow the electron beam to pass through and act on the connection position of the first welding part 310 and the second welding part 320 to achieve heating and melting welding; the first conveyor pulley group 420 here is connected to the first driving shaft 410, and the first driving shaft 410 can drive the first conveyor pulley group 420 to drive the first conveyor belt 430 to move in a directional manner; through the above-mentioned belt conveying device, the strip metal 300 can be clamped and limited, and the strip metal 300 located in the middle can be driven to move synchronously during the clamping and limiting process. The strip metal 300 and the first conveyor belt 430 will not move relative to each other during the clamping and conveying process, thereby ensuring the stability of the overall clamping.

[0033] A limiting component 450 for accommodating a filling medium is provided on the surface of the first conveyor belt 430. Multiple limiting components 450 are provided along the length direction of the first conveyor belt 430, and multiple limiting components 450 are located on the moving path of the strip metal 300. The limiting component 450 has elasticity and fits with the surface of the strip metal 300 for longitudinal limitation after being compressed. The limiting component 450 can fit with the upper surface or the lower surface of the strip metal 300. The limiting component 450 has elasticity and can deform after being compressed, which can enhance the tightness of the fit between the first conveyor belt 430 and the strip metal 300 and enhance stability. In particular, when there is a partial dimensional deviation on the surface of the strip metal 300, the filling medium inside the limiting component 450 can flow toward the outside or the thinner area after the pressure on the limiting component 450 increases, further enhancing the stability of the fit between the first conveyor belt 430 and the strip metal 300, ensuring the stability of the strip metal 300 during the electron beam welding process, and improving the quality of the final product.

[0034] The filling medium here can be adaptively selected according to the thickness of the strip metal 300 , and can be selected as gas or liquid, as long as it has good fluidity and good clamping stability.

[0035] The preferred filling medium is electrorheological fluid, and the limiting component 450 includes a strip-shaped limiting capsule 451, and a flexible first conductive strip 452 and a second conductive strip 453 are arranged on the outside of the limiting capsule 451. A conductive device 900 that cooperates with the first conductive strip 452 and the second conductive strip 453 is also provided in the welding chamber 200.

[0036] The electrorheological fluid in the limiting capsule 451 can be controlled by the conductive device 900 to be conductive and converted into a solid state. The solid electrorheological fluid can enhance the clamping and limiting effect and enhance the stability of the clamping and conveying of the strip metal 300 in the middle.

[0037] The conductive device 900 here is located at the position of the linear conveying of the first conveyor belt 430, and the electron beam welding body 210 is also located at the position of the linear conveying of the first conveyor belt 430. After the limiting capsule 451 on the surface of the first conveyor belt 430 is completely located at the position of the linear conveying, the electrorheological fluid in the limiting capsule 451 is controlled to be in a conductive state. When the front end of the first conveyor belt 430 is about to leave the linear conveying area, the electrorheological fluid in the limiting capsule 451 is controlled to be in a power-off state. At this time, the limiting capsule 451 becomes flexible as a whole and will not affect the normal deflection conveying of the first conveyor belt 430.

[0038] During the initial contact between the limiting capsule 451 and the strip metal 300, part of the limiting capsule 451 is located in the curved conveying area of ​​the first conveyor belt 430. At this time, the electrorheological fluid inside the limiting capsule 451 is in a non-conductive liquid state. During this process, the liquid electrorheological fluid can flow toward the place with lower pressure after being pressurized, that is, the thinner position or the outside of the surface of the strip metal 300. The limiting capsule 451 fits completely and tightly with the surface of the strip metal 300, which can achieve pre-positioning and fitting, and can prepare for future solid-state limiting.

[0039] The first conductive strip 452 and the second conductive strip 453 are respectively connected to two electrodes of the power supply, and can respectively press against the conductive protrusions on the surface of the conductive device 900 during the relative process to achieve circuit conduction.

[0040] Specifically, the conductive device 900 includes a conductive end 910 and a conductive mounting seat 920. The conductive end 910 is fixedly connected to the conductive mounting seat 920, and the conductive end 910 is located on the moving path of the first conductive strip 452 and the second conductive strip 453. The above-mentioned conductive protrusion is located on the surface of the conductive end 910, and the conductive protrusion is electrically connected to the power supply. The conductive mounting seat 920 can fix the conductive end 910 to the inner wall of the welding chamber 200 to ensure the stability of the conductive end 910 during the conduction process. At the same time, for strip metals 300 of different thicknesses, the height position of the conductive end 910 can also be adjusted through the conductive mounting seat 920 to ensure the stability of conduction in different scenarios.

[0041] For the first conveyor belt 430 with a larger size span, in order to enhance the stability of its middle position, the first conveying device 400 here also includes a plurality of first support rollers 440. The plurality of first support rollers 440 are arranged at intervals and are located on the inner side of the first conveyor belt 430 to press the first conveyor belt 430 tightly. The first support rollers 440 can support and limit the first conveyor belt 430 from the inside, thereby ensuring the stability of the first conveyor belt 430 during the conveying process, and ultimately improving the stability of the strip metal 300 during the welding process and improving the quality of the welded product.

[0042] It should be noted that the first support roller 440 here includes a first support shaft 441 and a first roller body 442. The first support shaft 441 is a rotating shaft that does not pass through the welding chamber 200 on one side, and can form a longer channel between the two first conveyor belts 430 for the electron beam to pass through; the first conveyor belt pulley group 420 here is driven by the first drive shaft 410, and the first drive shaft 410 is a rotating shaft that passes through the inside of the welding chamber 200. The first conveyor belt pulley groups 420 on both sides can be driven to rotate through a first drive shaft 410 to ensure stability on both sides.

[0043] further; the spacing between two adjacent first support rollers 440 is X, the limiting capsule 451 extends along the length direction of the first conveyor belt 430 and the length of the first conveyor belt 430 is greater than 2X.

[0044] Through the above-mentioned structural design, after the limiting capsule 451 becomes solid, the limiting capsule 451 will always span the two first support rollers 440 in the solid state, further improving the stability of the conveying of the limiting capsule 451 in the solid state; the distance X between the above-mentioned two first support rollers 440 is adjusted according to actual conditions, and the number of arrangements is reduced while ensuring the stable conveying support of the first conveyor belt 430, thereby reducing the difficulty of installation in the welding room 200.

[0045] Furthermore, the second conveying device 500 and the electron beam welding body 210 are arranged symmetrically in two groups up and down, and the two groups of second conveying devices 500 have opposite conveying directions and are used to convey two groups of strip metals 300 in opposite directions. Through the above-mentioned structural design, one group of first conveying devices 400 can be paired with two groups of second conveying devices 500, and synchronous welding of two strip metals 300 can be achieved, thereby improving the utilization efficiency of the first conveying device 400 and the overall welding efficiency.

[0046] The two metal strips 300 are respectively located on both sides of the first conveying device 400 and will not affect each other during the welding process.

[0047] For some metals with larger thickness or special metal materials, the temperature required for heating and melting increases, and the energy of the electron beam flow increases simultaneously. During the welding process, the heat on the surface of the strip metal 300 continues to accumulate between the first conveyor device 400 and the second conveyor device 500, causing the heat between the first conveyor device 400 and the second conveyor device 500 to continue to rise, affecting the overall clamping effect and the normal operation of some internal structures.

[0048] In order to solve the above problems, a cooling device 600 is provided on the side of the second conveying device 500 away from the first conveying device 400. The cooling device 600 can dissipate and remove the heat between the first conveying device 400 and the second conveying device 500, thereby achieving continuous cooling and realizing internal stable dynamic balance.

[0049] Specifically; the cooling device 600 includes a third conveyor pulley group 620 and a cooling belt 630 sleeved on the surface of the third conveyor pulley group 620, and the second conveyor device 500 includes a second conveyor pulley group 520 and a second conveyor belt 530 sleeved on the surface of the second conveyor pulley group 520, and the linear speed of the cooling belt 630 is the same as the linear speed of the second conveyor belt 530.

[0050] The second conveyor belt 530 and the cooling belt 630 here are both made of materials with high thermal conductivity, and flexible metal materials or metal materials arranged at fixed intervals can be fixed on their surfaces; during the process of the second conveyor belt 530 and the strip metal 300 being in contact, the two move synchronously, and the welding heat can be continuously absorbed by the second conveyor belt 530 to prevent the heat from being transferred toward the side of the first conveyor device 400.

[0051] At the same time, during the process of the second conveyor belt 530 being in contact with the cooling belt 630, the heat on the surface of the second conveyor belt 530 is transferred toward the side of the cooling belt 630 during the contact process, and the temperature of the surface of the second conveyor belt 530 continues to decrease, preparing for subsequent continuous cooling; finally, the heat between the first conveyor device 400 and the second conveyor device 500 is transferred to the side of the cooling device 600, and is continuously dissipated at the outer position.

[0052] It should also be noted that the above-mentioned cooling device 600 is also selected as a belt conveyor structure. The second conveyor belt 530 and the cooling belt 630 will not move relative to each other during the bonding process, will not generate frictional heat, and will also reduce related wear and tear, thereby ensuring the normal operation of the entire mechanism.

[0053] Cooling chambers are formed in the enclosed interiors on both sides of the cooling belt 630. The first end of the cooling chamber is connected to a first pipe for the cooling gas to enter, and the second end is connected to a second pipe for the cooling gas to discharge. During the directional flow of the cooling gas in the cooling chamber in the cooling belt 630, the heat can be quickly dissipated and taken away, thereby accelerating the cooling process of the cooling belt 630; a cleaning device 800 is provided on the moving path of the strip metal 300, and the end of the second pipe is located on the outside of the cleaning device 800. The cleaning device 800 can clean the welding protrusions on the surface of the strip metal 300 to avoid subsequent winding and collision through the sealing structure.

[0054] The cleaning device 800 may adopt an existing friction structure or a reciprocating collision structure, which will not be described in detail here.

[0055] For some electron beam welding processes, the interior of the welding chamber 200 is in a relatively sealed vacuum environment, and the cleaning device 800 can clean the strip metal 300, which can prevent the raised defects on the surface of the strip metal 300 from affecting the sealing structure on both sides, ensuring the stability of the overall welding, and also ensuring the final quality of the welded product; using the heated cooling gas to act on the surface of the strip metal 300 can, on the one hand, clean the debris detached from the cleaning and prevent it from entering the subsequent sealing structure. At the same time, the temperature difference between the cooling gas and the surface of the strip metal 300 is reduced after heating, avoiding internal defects caused by the excessively fast cooling rate of the strip metal 300.

[0056] A limiting device 700 is also provided inside the welding chamber 200. The limiting device 700 includes two spaced-apart limiting rollers 710. The limiting rollers 710 are located on both sides of the strip metal 300 for lateral limiting. By performing lateral limiting on the strip metal 300, the distance between the first welding part 310 and the second welding part 320 can be adjusted. By performing lateral limiting before longitudinal limiting, the distance between the first welding part 310 and the second welding part 320 can be ensured to be stable and accurate, and the first welding part 310 and the second welding part 320 that are far away from each other can be brought closer to each other, thereby ensuring the accuracy of the lateral position between the first welding part 310 and the second welding part 320.

[0057] An electron beam welding process, using the above-mentioned electron beam welding equipment, comprises the following steps:

[0058] S1. Control the direction of the strip metal 300 to pass through the welding chamber 200. During the directional movement of the strip metal 300, the electron beam welding body 210 is started to complete continuous welding. The electron beam welding body 210 can emit an electron beam toward the position of the strip metal 300 that needs to be welded, increase the heat at the welding position, control the metal melting, and achieve continuous welding.

[0059] S2. During continuous welding, the first conveying device 400 and the second conveying device 500 are controlled to move synchronously and directional, and the longitudinal limitation of the strip metal 300 is completed from both sides to ensure the stability of the strip metal 300 during welding. The first conveying device 400 and the second conveying device 500 can clamp and limit the strip metal 300 located in the middle from both sides to ensure the stability of the strip metal 300 in the clamped state. The strip metal 300 and the first conveyor belt 430 and the second conveyor belt 530 will not move relative to each other during the clamping and conveying process, and there is surface contact during the clamping and conveying process, which increases the area of ​​the clamping limitation and ensures the stability of the overall clamping.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An electron beam welding device for welding strip metal (300), comprising a welding chamber (200), wherein an electron beam welding body (210) and a clamping and conveying device for limiting and conveying the strip metal (300) are arranged inside the welding chamber (200), characterized in that: The clamping conveying device comprises a first conveying device (400) located on a first side of the strip metal (300) and a second conveying device (500) located on a second side of the strip metal (300), the first conveying device (400) and the second conveying device (500) are both belt conveying devices, the first conveying device (400) comprises two sets of first conveying belt pulleys (420) arranged in parallel, and the surface of the first conveying belt pulleys (420) is provided with a first conveying belt (430); The surface of the first conveyor belt (430) is provided with a limiting component (450) for accommodating a filling medium, and a plurality of the limiting components (450) are provided along the length direction of the first conveyor belt (430), and the plurality of limiting components (450) are located on the moving path of the strip metal (300), and the limiting components (450) are elastic and pressed to fit with the surface of the strip metal (300) for longitudinal limiting; The limiting assembly (450) comprises a strip-shaped limiting capsule (451), a first flexible conductive strip (452) and a second flexible conductive strip (453) being provided on the outside of the limiting capsule (451), and a conductive device (900) cooperating with the first conductive strip (452) and the second conductive strip (453) being provided in the welding chamber (200).

2. The electron beam welding equipment according to claim 1, characterized in that The conductive device (900) comprises a conductive end (910) and a conductive mounting seat (920), wherein the conductive end (910) is fixedly connected to the conductive mounting seat (920), and the conductive end (910) is located on a moving path of the first conductive strip (452) and the second conductive strip (453).

3. The electron beam welding equipment according to claim 1, characterized in that The first conveying device (400) further comprises a plurality of first support rollers (440), wherein the plurality of first support rollers (440) are arranged at intervals and are located inside the first conveying belt (430) to press the first conveying belt (430) tightly.

4. The electron beam welding equipment according to claim 3, characterized in that The distance between two adjacent first support rollers (440) is X, the limiting bag (451) extends along the length direction of the first conveyor belt (430), and the length of the first conveyor belt (430) is greater than 2X.

5. The electron beam welding equipment according to any one of claims 1 to 4, characterized in that: The second conveying device (500) and the electron beam welding body (210) are symmetrically arranged in two groups, and the two groups of the second conveying devices (500) have opposite conveying directions for conveying two groups of strip metals (300) in opposite directions.

6. The electron beam welding equipment according to claim 1, characterized in that The second conveying device (500) is provided with a cooling device (600) on a side away from the first conveying device (400), the cooling device (600) comprising a third conveying belt wheel group (620) and a cooling belt (630) sleeved on the surface of the third conveying belt wheel group (620), the second conveying device (500) comprising a second conveying belt wheel group (520) and a second conveying belt (530) sleeved on the surface of the second conveying belt wheel group (520), the linear speed of the cooling belt (630) being the same as the linear speed of the second conveying belt (530).

7. The electron beam welding equipment according to claim 6, characterized in that The cooling belt (630) is closed on both sides to form a cooling chamber. The first end of the cooling chamber is connected to a first pipe for cooling gas to enter, and the second end is connected to a second pipe for cooling gas to discharge. A cleaning device (800) is provided on the moving path of the strip metal (300), and the end of the second pipe is located outside the cleaning device (800).

8. The electron beam welding equipment according to claim 1, characterized in that A limiting device (700) is further provided inside the welding chamber (200), wherein the limiting device (700) comprises two limiting rollers (710) arranged at intervals, and the limiting rollers (710) are located on both sides of the strip metal (300) for lateral limiting.

9. An electron beam welding process, characterized in that Using the electron beam welding equipment according to any one of claims 1 to 8 comprises the following steps: S1, controlling the strip metal (300) to pass through the welding chamber (200) in a directional manner, and starting the electron beam welding body (210) to complete continuous welding during the directional movement of the strip metal (300); S2. During the continuous welding process, the first conveying device (400) and the second conveying device (500) are controlled to move synchronously and directionally, and the longitudinal position of the strip metal (300) is limited from both sides to ensure the stability of the strip metal (300) during the welding process.

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