Electron beam welding device for seam welding processing of laser gradienter

Abstract

The invention discloses an electron beam welding device for seam welding processing of a laser level meter, and belongs to the field of welding processing of level meters. The electron beam welding device for seam welding processing of the laser gradienter comprises a workbench, and further comprises lifting equipment fixedly installed on the workbench, a vacuum cover with a downward opening is fixedly installed at the telescopic end of the lifting equipment, and a vacuum pump is fixedly installed on the vacuum cover; the annular groove is formed in the inner wall of the vacuum cover, an electron beam welding gun facing the axis of the vacuum cover is installed in the annular groove, and a surrounding component for driving the electron beam welding gun to revolve around the axis of the vacuum cover is arranged in the annular groove; the two symmetrically arranged bottom covers are transversely mounted at the lower port of the vacuum cover in a sliding manner; welding work of the shell and the end cover can be automatically completed, and due to the fact that the electron beam vacuum welding technology is adopted, the sealing performance between the shell and the end cover is remarkably improved, the service life is remarkably prolonged, and precision is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of level instrument welding processing, in particular to an electron beam welding device used for seam welding processing of a laser level instrument. Background Art

[0002] A laser level is a precision measuring tool that uses a laser beam to determine horizontal or vertical reference lines. It is widely used in construction, decoration, engineering measurement and other fields. It is mainly composed of an outer shell and internal detection devices. Laser levels come in a variety of shapes and designs to suit different usage scenarios and needs, including cylindrical shapes that are easy to hold.

[0003] In the prior art, the outer shell of a cylindrical laser level is mainly composed of a base and an outer shell, and some outer shells are also combined with end covers and cylindrical tubes. Currently, it is mainly assembled through simple welding. However, since the laser level is a high-precision instrument, simple welding will affect its sealing, service life and accuracy. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that the sealing, service life and accuracy of the laser level housing are easily affected after welding, and to propose an electron beam welding device for seam welding of the laser level.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An electron beam welding device for seam welding of a laser level comprises a workbench and also comprises: a lifting device fixedly mounted on the workbench, wherein a vacuum cover with an opening facing downward is fixedly mounted on the telescopic end of the lifting device, and a vacuum pump is fixedly mounted on the vacuum cover; an annular groove is arranged on the inner wall of the vacuum cover, an electron beam welding gun facing the axis of the vacuum cover is installed in the annular groove, and a surrounding component for driving the electron beam welding gun to revolve around the axis of the vacuum cover is arranged in the annular groove; two symmetrically arranged bottom covers are laterally slidably mounted on the lower port of the vacuum cover, wherein the vacuum cover is provided with an opening and closing portion for driving the two bottom covers to move closer to and away from each other.

[0007] In order to facilitate driving the electron beam welding gun to weld around the outer shell, preferably, the surrounding component includes a circular ring rotatably connected to the annular groove port, and a circular gear is fixedly installed on the outer wall of the circular ring, wherein the electron beam welding gun is fixedly installed on the circular ring, and a motor is fixedly installed on the outer wall of the vacuum cover, and a driving gear meshing with the circular gear is fixedly installed on the output shaft of the motor.

[0008] In order to automatically seal the lower port of the vacuum hood, the opening and closing part further includes a mounting frame fixedly connected to the outer wall of the vacuum hood, and a double-headed threaded rod is rotatably mounted on the mounting frame, wherein the outer walls at both ends of the double-headed threaded rod are threadedly connected with sliders, and the two bottom covers are respectively fixedly connected to the two sliders, and a driving part for driving the double-headed threaded rod to rotate is provided on the workbench.

[0009] In order to automatically drive the double-headed threaded rod to rotate, the driving part further includes a passive gear fixedly mounted on one end of the double-headed threaded rod, and a short rack matching the passive gear is fixedly mounted on the workbench. When the vacuum cover is about to approach the upper end surface of the workbench, the passive gear will engage and connect with the short rack.

[0010] In order to make the outer shell automatically lift toward the inner top of the vacuum cover, further, the outer wall of the lower end of the vacuum cover is rotatably connected to two symmetrically arranged cross bars, a funnel-shaped roller is fixedly mounted on the outer wall of the cross bar, and a driven gear is fixedly mounted on one end of the cross bar, wherein a transmission gear meshing with the driven gear is rotatably mounted on the outer wall of the vacuum cover, and a long rack meshing with the transmission gear is fixedly mounted on the workbench, and when the transmission gear is not meshing with the long rack, the driven gear meshes with the short rack.

[0011] In order to achieve efficient heat dissipation of the electron beam welding gun, further, the vacuum cover is provided with an air inlet pipe and an air exhaust pipe connected to the annular groove, the mounting frame is provided with a negative pressure component for sucking air into the exhaust pipe, and a filter element is installed in the air inlet pipe.

[0012] In order to make the exhaust pipe automatically obtain negative pressure, further, the negative pressure component includes a telescopic airbag fixedly installed between the slider and the outer wall of the mounting frame, and the telescopic airbag is fixedly connected to the intake pipe and the exhaust pipe, wherein the intake pipe and the exhaust pipe are both highly installed with a one-way valve, and the end of the intake pipe is fixedly connected to the end of the exhaust pipe.

[0013] In order to prevent the weld on the outer shell from being affected by the outside air, further, the inner wall of the ring is provided with a device groove, a heat-conducting wheel is installed in the device groove, and a deflection part for driving the heat-conducting wheel to deflect is provided in the device groove. When the ring rotates, the heat-conducting wheel deflects toward the axial direction of the vacuum cover.

[0014] In order to make the heat conductive wheel deflect automatically, further, the deflection part includes a short shaft fixedly connected in the device groove, and an inclined horizontal plate is rotatably installed on the short shaft, and a torsion spring is installed between the horizontal plate and the short shaft, wherein the heat conductive wheel is rotatably installed on the horizontal plate, and a counterweight block is also fixedly connected to the horizontal plate, and the counterweight block and the heat conductive wheel are respectively located on both sides of the horizontal plate, and the weight of the counterweight block is greater than that of the heat conductive wheel.

[0015] In order to facilitate the conveying of the shell to the bottom of the vacuum cover, preferably, a conveyor belt is fixedly installed on the workbench, and the conveyor belt is located at the lower end of the vacuum cover toward the upper end of the conveyor belt.

[0016] Compared with the prior art, the present invention provides an electron beam welding device for laser level seam welding, which has the following beneficial effects:

[0017] 1. The electron beam welding device used for seam welding of laser level gauges can drive the ring to rotate through the motor, and the ring can drive the electron beam welding gun to revolve around the outer shell, so as to automatically complete the welding work of the outer shell and the end cover. Due to the use of electron beam vacuum welding technology, the sealing, service life and precision between the outer shell and the end cover are significantly improved.

[0018] 2. The electron beam welding device used for seam welding of laser level gauges makes the transmission gear roll along the long rack, and the roller will automatically lift the outer shell on the workbench and transport it into the vacuum cover. The electron beam welding gun is just facing the gap between the end cover and the outer shell, which can automatically complete the loading of the outer shell and indirectly improve the welding efficiency of the outer shell.

[0019] 3. The electron beam welding device used for seam welding of laser level instruments drives the double-headed threaded rod to rotate through the passive gear, and the sliders at both ends drive the bottom covers on both sides to approach each other, and the two bottom covers will automatically complete the sealing work of the vacuum cover, which greatly improves the degree of automation and indirectly improves the welding efficiency of the outer shell.

[0020] 4. The electron beam welding device used for seam welding of laser level instrument stretches the telescopic airbag through the slider, and the annular groove draws air through the air inlet pipe. When the air passes through the annular groove, it can take away part of the temperature on the ring, and the electron beam welding gun can transfer the generated heat to the ring, thereby indirectly dissipating the heat of the electron beam welding gun to ensure the working stability of the electron beam welding gun.

[0021] 5. The electron beam welding device used for seam welding of laser level instrument drives the heat transfer wheel and the counterweight block to revolve around the axis of the vacuum cover through the circular ring, and the deflected cross plate drives the heat transfer wheel to press against the weld between the outer shell and the end cover. The heat transfer wheel can transfer the heat generated by welding to the circular ring, so as to dissipate the heat of the weld between the outer shell and the end cover in a vacuum environment, prevent the chemical reaction between the outer shell and the end cover when dissipating heat in the air, and ensure the welding quality between the outer shell and the end cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the axonometric structure of the electron beam welding device for seam welding of a laser level instrument proposed by the present invention from a first viewing angle;

[0023] Figure 2A schematic diagram of the axonometric structure of the electron beam welding device for seam welding of a laser level instrument proposed by the present invention from a second viewing angle;

[0024] Figure 3 It is a partial isometric structural schematic diagram of the electron beam welding device for seam welding processing of laser level instrument proposed by the present invention;

[0025] Figure 4 This is a schematic diagram of the axonometric structure of the vacuum cover of the electron beam welding device for seam welding of a laser level instrument proposed in the present invention;

[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the vacuum cover of the electron beam welding device for seam welding of a laser level instrument proposed by the present invention;

[0027] Figure 6 This is a schematic diagram of the annular axonometric structure of the electron beam welding device for seam welding of a laser level instrument proposed by the present invention;

[0028] Figure 7 A schematic diagram of the roller axonometric structure of the electron beam welding device for seam welding of a laser level instrument proposed in the present invention;

[0029] Figure 8 This is a schematic diagram of the axonometric structure of the bottom cover of the electron beam welding device for seam welding of a laser level instrument proposed by the present invention;

[0030] Fig. 9 This is a schematic diagram of the heat transfer wheel structure of the electron beam welding device for seam welding of laser level instrument proposed by the present invention;

[0031] Fig.10 This is a schematic diagram of the axonometric structure of the laser level housing.

[0032] In the figure: 1. workbench; 2. vacuum cover; 3. lifting equipment; 4. electron beam welding gun; 5. annular groove; 6. circular ring; 7. device groove; 8. vacuum pump; 9. motor; 10. driving gear; 11. ring gear; 12. cross bar; 13. roller shaft; 14. driven gear; 15. transmission gear; 16. long rack; 17. bottom cover; 18. mounting frame; 19. double-headed threaded rod; 20. slider; 21. passive gear; 22. short rack; 23. short shaft; 24. heat transfer wheel; 25. groove; 26. cross plate; 27. counterweight; 28. air inlet pipe; 29. ​​exhaust pipe; 30. telescopic air bag; 31. suction pipe; 32. exhaust pipe; 33. outer shell; 34. end cover. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are 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, and therefore cannot be understood as a limitation on the present invention.

[0035] Embodiment 1:

[0036] Reference Figure 1-Figure 10 , an electron beam welding device for seam welding processing of a laser level comprises a workbench 1, on which a conveyor belt is fixedly installed, and the conveyor belt is located at the lower end of a vacuum cover 2 facing the upper end of the conveyor belt, and also comprises: a lifting device 3, which is vertically fixedly installed on the workbench 1, and the lifting device 3 is an electric telescopic rod, wherein a vacuum cover 2 with an opening facing downward is fixedly installed at the telescopic end of the lifting device 3, and a vacuum pump 8 for making the vacuum cover 2 in a vacuum state is fixedly installed on the vacuum cover 2; an annular groove 5 is arranged on the inner wall of the vacuum cover 2, and an electron beam welding gun 4 facing the axis of the vacuum cover 2 is installed in the annular groove 5, and the electron beam welding gun 4 is used to emit an electron beam to complete the welding work of the weld seam, and a surrounding component for driving the electron beam welding gun 4 to revolve around the axis of the vacuum cover 2 is arranged in the annular groove 5; two symmetrically arranged bottom covers 17 are laterally slidably installed at the lower end of the vacuum cover 2, wherein the vacuum cover 2 is provided with an opening and closing part for driving the two bottom covers 17 to approach and move away from each other.

[0037] Specifically, when in use, the outer shell 33 with the end cover 34 spot-welded thereon is conveyed to the lower end of the vacuum cover 2 by the conveyor belt on the workbench 1, and then the vacuum cover 2 is driven to move onto the workbench 1 by the lifting device 3. During the movement, the vacuum cover 2 will gradually be sheathed on the outer shell 33. At this time, the opening and closing part will automatically block the bottom of the vacuum cover 2 and shovel the outer shell 33 into the vacuum cover 2. At this time, the vacuum pump 8 is started to extract the air in the vacuum cover 2, and then the electron beam welding gun 4 is started, and the electron beam welding gun 4 is driven to revolve around the outer shell 33 by the surrounding component, so that the welding work of the outer shell 33 and the end cover 34 can be automatically completed. Due to the use of the electron beam vacuum welding technology, the sealing, service life and precision between the outer shell 33 and the end cover 34 are significantly improved;

[0038] In order to improve welding efficiency, the gap between the inner wall of the vacuum cover 2 and the outer wall of the shell 33 is between 1 cm and 5 cm. The small processing space can improve the working efficiency of the vacuum pump 8.

[0039] Embodiment 2:

[0040] Reference Figure 1-Figure 6 , which is basically the same as the first embodiment, and furthermore, specifically discloses a specific implementation scheme of the surrounding component.

[0041] The above-mentioned surrounding component includes a circular ring 6 rotatably connected to the end of the annular groove 5, and a circular gear 11 is fixedly installed on the outer wall of the circular ring 6, wherein the electron beam welding gun 4 is fixedly installed on the circular ring 6, and a motor 9 is fixedly installed on the outer wall of the vacuum cover 2, and a driving gear 10 meshingly connected to the circular gear 11 is fixedly installed on the output shaft of the motor 9.

[0042] Specifically, when the electron beam welding gun 4 is required to revolve along the outer wall of the outer shell 33, the motor 9 and the electron beam welding gun 4 are started, and the motor 9 drives the ring gear 11 to rotate through the driving gear 10, and the ring gear 11 drives the circular ring 6 to rotate. The circular ring 6 can drive the electron beam welding gun 4 to revolve around the outer shell 33, and the welding work of the outer shell 33 and the end cover 34 can be automatically completed.

[0043] Embodiment three:

[0044] Reference Figure 1-Figure 4 as well as Figure 8 , which is basically the same as the second embodiment, and furthermore, specifically discloses a specific implementation scheme of the opening and closing part.

[0045] The above-mentioned opening and closing part includes a mounting frame 18 fixedly connected to the outer wall of the vacuum cover 2, and a double-headed threaded rod 19 is rotatably mounted on the mounting frame 18, and the threads at both ends of the double-headed threaded rod 19 have opposite rotation directions, wherein the outer walls at both ends of the double-headed threaded rod 19 are threadedly connected with sliders 20, and the two bottom covers 17 are respectively fixedly connected to the two sliders 20. A driving part for driving the double-headed threaded rod 19 to rotate is provided on the workbench 1, and the driving part includes a passive gear 21 fixedly mounted on one end of the double-headed threaded rod 19, and a short rack 22 cooperating with the passive gear 21 is fixedly mounted on the workbench 1. When the vacuum cover 2 is about to approach the upper end surface of the workbench 1, the passive gear 21 will mesh with the short rack 22.

[0046] Specifically, when the vacuum hood 2 moves downward and is about to approach the upper end surface of the workbench 1, the passive gear 21 will engage with the short rack 22, and the short rack 22 will drive the double-headed threaded rod 19 to rotate through the passive gear 21, and the double-headed threaded rod 19 will drive the sliders 20 at both ends to approach each other, and the sliders 20 at both ends will drive the bottom covers 17 on both sides to approach each other, and the two bottom covers 17 will automatically complete the sealing work of the vacuum hood 2, thereby greatly improving the degree of automation and indirectly improving the welding efficiency of the outer shell 33.

[0047] Embodiment 4:

[0048] Reference Figure 1-Figure 5as well as Figure 7 , which is basically the same as the third embodiment, and further, a specific implementation scheme of transporting the shell 33 to the top of the vacuum cover 2 is specifically added.

[0049] The outer wall of the lower end of the above-mentioned vacuum cover 2 is rotatably connected to two symmetrically arranged cross bars 12, and there is damping between the cross bars 12 and the vacuum cover 2, and the damping resistance is greater than the total weight of the shell 33 and the end cover 34. A funnel-shaped roller 13 is fixedly installed on the outer wall of the cross bar 12, and the funnel-shaped roller 13 can be attached to the outer wall of the shell 33. A driven gear 14 is fixedly installed at one end of the cross bar 12, wherein a transmission gear 15 meshing with the driven gear 14 is rotatably installed on the outer wall of the vacuum cover 2, and a long rack 16 meshing with the transmission gear 15 is fixedly installed on the workbench 1, and when the transmission gear 15 is not meshed with the long rack 16, the driven gear 21 meshes with the short rack 22

[0050] Specifically, during the downward movement of the vacuum hood 2, the vacuum hood 2 will gradually be sleeved on the outer shell 33, and will first make the two rollers 13 sleeved on the outer walls of the outer shell 33 on both sides, and make the transmission gear 15 roll along the long rack 16, and the transmission gear 15 will drive the cross bar 12 to rotate through the driven gear 14 meshing with it, and the cross bar 12 will drive the rollers 13 to rotate, and the rollers 13 will automatically lift the outer shell 33 on the workbench 1 and transport it into the vacuum hood 2, and the electron beam welding gun 4 will just face the gap between the end cover 34 and the outer shell 33, so that the loading work of the outer shell 33 can be automatically completed, thereby indirectly improving the welding efficiency of the outer shell 33.

[0051] Embodiment five:

[0052] Reference Figure 1-Figure 6 as well as Figure 8-Figure 9 , which is basically the same as the fourth embodiment, and further, a specific implementation scheme for dissipating heat for the electron beam welding gun 4 is specifically added.

[0053] The vacuum cover 2 is provided with an air inlet pipe 28 and an air exhaust pipe 29 connected to the annular groove 5, and the mounting frame 18 is provided with a negative pressure component for sucking air from the exhaust pipe 29. A filter element is installed in the air inlet pipe 28, and the negative pressure component includes a telescopic air bag 30 fixedly installed between the slider 20 and the outer wall of the mounting frame 18, and an air intake pipe 31 and an air exhaust pipe 32 are fixedly connected to the telescopic air bag 30, wherein both the air intake pipe 31 and the air exhaust pipe 32 are highly installed with a one-way valve, and the end of the air intake pipe 31 is fixedly connected to the end of the exhaust pipe 29.

[0054] Specifically, when the two sliders 20 move away from each other, the slider 20 will squeeze the telescopic airbag 30, and the telescopic airbag 30 will discharge the internal air through the exhaust pipe 32. When the two sliders 20 approach each other, the slider 20 will stretch the telescopic airbag 30, and the telescopic airbag 30 will draw air into the exhaust pipe 29 through the suction pipe 31, and the exhaust pipe 29 will draw air into the annular groove 5. The annular groove 5 will draw air through the air inlet pipe 28. When the air passes through the annular groove 5, it can take away part of the temperature on the ring 6, and the electron beam welding gun 4 can transfer the generated heat to the ring 6, thereby indirectly dissipating the heat of the electron beam welding gun 4 to ensure the working stability of the electron beam welding gun 4.

[0055] The inner wall of the above-mentioned ring 6 is provided with a device groove 7, and a heat-conducting wheel 24 is installed in the device groove 7. The heat-conducting wheel 24 is made of copper with good thermal conductivity. A deflection part for driving the heat-conducting wheel 24 to deflect is provided in the device groove 7. When the ring 6 rotates, the heat-conducting wheel 24 deflects toward the axial direction of the vacuum cover 2. The deflection part includes a short shaft 23 fixedly connected to the device groove 7, and an inclined horizontal plate 26 is rotatably installed on the short shaft 23. A torsion spring is installed between the horizontal plate 26 and the short shaft 23, wherein the heat-conducting wheel 24 is rotatably installed on the horizontal plate 26, and a counterweight block 27 is also fixedly connected to the horizontal plate 26. The counterweight block 27 and the heat-conducting wheel 24 are respectively located on both sides of the horizontal plate 26, and the weight of the counterweight block 27 is greater than that of the heat-conducting wheel 24.

[0056] When the circular ring 6 rotates, the circular ring 6 will drive the heat conducting wheel 24 and the counterweight block 27 to revolve around the axis of the vacuum cover 2. Since the weight of the counterweight block 27 is greater than that of the heat conducting wheel 24, the counterweight block 27 will drive the cross plate 26 to swing under the action of centrifugal force, and the inclined cross plate 26 will rotate on the short shaft 23 until it is perpendicular to the axis of the vacuum cover 2. The deflected cross plate 26 will drive the heat conducting wheel 24 to press against the weld between the shell 33 and the end cover 34. The heat conducting wheel 24 can transfer the heat generated by welding to the circular ring 6, so that the weld between the shell 33 and the end cover 34 can be dissipated in a vacuum environment, preventing the shell 33 and the end cover 34 from chemical reaction when dissipating heat in the air, thereby ensuring the welding quality between the shell 33 and the end cover 34. When the circular ring 6 stops rotating, the heat conducting wheel 24 and the counterweight block 27 are no longer subjected to centrifugal force. At this time, the torsion spring will drive the cross plate 26 to reverse and reset, and the heat conducting wheel 24 is no longer close to the outer wall of the shell 33.

[0057] The heat transfer wheel 24 is provided with an annular groove 25. When the heat transfer wheel 24 is attached to the housing 33 and the end cover 34, the groove 25 can prevent the heat transfer wheel 24 from directly pressing the weld, thereby protecting the weld.

[0058] The electron beam welding device for seam welding of laser level instrument is used. When in use, the outer shell 33 with the end cover 34 spot-welded is conveyed to the lower end of the vacuum cover 2 by the conveyor belt on the workbench 1, and then the vacuum cover 2 is driven to move onto the workbench 1 by the lifting device 3. During the movement, the vacuum cover 2 will gradually be sleeved on the outer shell 33, and the two rollers 13 will first be sleeved on the outer walls of the outer shell 33 on both sides, and the transmission gear 15 will roll along the long rack 16. The transmission gear 15 will drive the cross bar 12 to rotate through the driven gear 14 meshing with it, and the cross bar 12 will drive the roller 13 to rotate. The roller 13 will automatically lift the outer shell 33 on the workbench 1 and convey it into the vacuum cover 2. The electron beam welding gun 4 is just facing the gap between the end cover 34 and the outer shell 33, so that the loading work of the outer shell 33 can be automatically completed, and the welding efficiency of the outer shell 33 can be indirectly improved.

[0059] When the transmission gear 15 passes over the long rack 16, the passive gear 21 will mesh with the short rack 22, and the short rack 22 will drive the double-headed threaded rod 19 to rotate through the passive gear 21, and the double-headed threaded rod 19 will drive the sliders 20 at both ends to approach each other, and the sliders 20 at both ends will drive the bottom covers 17 on both sides to approach each other, and the two bottom covers 17 will automatically complete the sealing work of the vacuum cover 2, so the degree of automation is greatly improved, which indirectly improves the welding efficiency of the outer shell 33.

[0060] After the bottom cover 17 is sealed, the vacuum pump 8 is started to extract the air in the vacuum cover 2, and then the motor 9 and the electron beam welding gun 4 are started. The motor 9 will drive the ring gear 11 to rotate through the driving gear 10, and the ring gear 11 will drive the circular ring 6 to rotate. The circular ring 6 can drive the electron beam welding gun 4 to revolve around the outer shell 33, and the welding work of the outer shell 33 and the end cover 34 can be automatically completed. Due to the use of electron beam vacuum welding technology, the sealing, service life and precision between the outer shell 33 and the end cover 34 are significantly improved.

[0061] After welding is completed, the air in the vacuum cover 2 is reset to normal air pressure, and the vacuum cover 2 is driven upward and reset by the lifting device 3, so that the welded shell 33 can be automatically placed on the conveyor belt of the workbench 1. During this period, the double-headed threaded rod 19 will reverse, thereby driving the two sliders 20 and the bottom cover 17 to move away from each other. When the two sliders 20 move away from each other, the slider 20 will squeeze the telescopic airbag 30, and the telescopic airbag 30 will discharge the internal air through the exhaust pipe 32. When the two sliders 20 approach each other, the slider 20 will stretch the telescopic airbag 30, and the telescopic airbag 30 will inhale air from the exhaust pipe 29 through the suction pipe 31, and the exhaust pipe 29 will inhale air from the annular groove 5. The annular groove 5 will inhale air through the air inlet pipe 28. When the air passes through the annular groove 5, it can take away part of the temperature on the ring 6, and the electron beam welding gun 4 can transfer the generated heat to the ring 6, so that the electron beam welding gun 4 can be indirectly dissipated. Heat, so as to ensure the working stability of the electron beam welding gun 4.

[0062] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electron beam welding device for laser level seam welding, comprising a workbench (1), characterized in that: Also includes: A lifting device (3) is fixedly mounted on the workbench (1). Wherein, a vacuum cover (2) with an opening facing downward is fixedly mounted on the telescopic end of the lifting device (3), and a vacuum pump (8) is fixedly mounted on the vacuum cover (2); An annular groove (5) is arranged on the inner wall of the vacuum cover (2), an electron beam welding gun (4) is installed in the annular groove (5) and faces the axis of the vacuum cover (2), and a surrounding component is arranged in the annular groove (5) to drive the electron beam welding gun (4) to revolve around the axis of the vacuum cover (2); Two symmetrically arranged bottom covers (17) are laterally slidably mounted on the lower ports of the vacuum cover (2). Wherein, the vacuum cover (2) is provided with an opening and closing portion for driving the two bottom covers (17) to move closer to and away from each other.

2. The electron beam welding device for laser level seam welding according to claim 1, characterized in that: The surrounding component comprises a circular ring (6) rotatably connected to the end of the circular groove (5), and a ring gear (11) is fixedly mounted on the outer wall of the circular ring (6). The electron beam welding gun (4) is fixedly mounted on the circular ring (6), a motor (9) is fixedly mounted on the outer wall of the vacuum cover (2), and a driving gear (10) meshingly connected with a ring gear (11) is fixedly mounted on the output shaft of the motor (9).

3. The electron beam welding device for laser level seam welding according to claim 2, characterized in that: The opening and closing portion comprises a mounting frame (18) fixedly connected to the outer wall of the vacuum cover (2), and a double-headed threaded rod (19) is rotatably mounted on the mounting frame (18). The outer walls at both ends of the double-headed threaded rod (19) are threadedly connected to sliders (20), the two bottom covers (17) are respectively fixedly connected to the two sliders (20), and the workbench (1) is provided with a driving part for driving the double-headed threaded rod (19) to rotate.

4. The electron beam welding device for laser level seam welding according to claim 3, characterized in that: The driving part comprises a passive gear (21) fixedly mounted on one end of a double-headed threaded rod (19); a short rack (22) matched with the passive gear (21) is fixedly mounted on the workbench (1); when the vacuum cover (2) is about to approach the upper end surface of the workbench (1), the passive gear (21) will mesh with the short rack (22).

5. The electron beam welding device for laser level seam welding according to claim 4, characterized in that: The outer wall of the lower end of the vacuum cover (2) is rotatably connected to two symmetrically arranged cross bars (12), a funnel-shaped roller shaft (13) is fixedly mounted on the outer wall of the cross bar (12), and a driven gear (14) is fixedly mounted on one end of the cross bar (12). A transmission gear (15) meshingly connected to a driven gear (14) is rotatably mounted on the outer wall of the vacuum cover (2); a long rack (16) meshingly connected to the transmission gear (15) is fixedly mounted on the workbench (1); when the transmission gear (15) is not meshing with the long rack (16), the driven gear (21) meshes with the short rack (22).

6. The electron beam welding device for laser level seam welding according to claim 3, characterized in that: The vacuum cover (2) is provided with an air inlet pipe (28) and an air exhaust pipe (29) which are in communication with the annular groove (5); the mounting frame (18) is provided with a negative pressure component for sucking air from the air exhaust pipe (29); and a filter element is installed in the air inlet pipe (28).

7. The electron beam welding device for laser level seam welding according to claim 6, characterized in that: The negative pressure component comprises a telescopic airbag (30) fixedly mounted between the slider (20) and the outer wall of the mounting frame (18), and an air intake pipe (31) and an air discharge pipe (32) are fixedly connected to the telescopic airbag (30). Wherein, one-way valves are installed at high altitudes inside the air intake pipe (31) and the air exhaust pipe (32), and the end of the air intake pipe (31) is fixedly connected to the end of the air exhaust pipe (29).

8. The electron beam welding device for laser level seam welding according to claim 7, characterized in that: The inner wall of the circular ring (6) is provided with a mounting groove (7), a heat conducting wheel (24) is installed in the mounting groove (7), and a deflection portion for driving the heat conducting wheel (24) to deflect is provided in the mounting groove (7); when the circular ring (6) rotates, the heat conducting wheel (24) deflects towards the axial direction of the vacuum cover (2).

9. The electron beam welding device for laser level seam welding according to claim 8, characterized in that: The deflection part comprises a short shaft (23) fixedly connected in the device slot (7), a transverse plate (26) arranged obliquely is rotatably mounted on the short shaft (23), and a torsion spring is installed between the transverse plate (26) and the short shaft (23). The heat conducting wheel (24) is rotatably mounted on a transverse plate (26), a counterweight block (27) is also fixedly connected to the transverse plate (26), the counterweight block (27) and the heat conducting wheel (24) are respectively located on two sides of the transverse plate (26), and the weight of the counterweight block (27) is greater than that of the heat conducting wheel (24).

10. The electron beam welding device for laser level seam welding according to claim 1, characterized in that: A conveyor belt is fixedly mounted on the workbench (1), and the conveyor belt is located at the lower end of the vacuum cover (2) facing the upper end of the conveyor belt.

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