Electron beam welding machine suitable for large arc welding

Abstract

The invention discloses an electron beam welding machine suitable for large arc welding, and relates to the technical field of electron beam welding machines, the electron beam welding machine comprises a vacuum chamber main body, one side of the vacuum chamber main body is fixedly connected with a console, the two ends of the vacuum chamber main body are fixedly provided with positioning supports, one side of the vacuum chamber main body is fixedly provided with an air inlet, and the other side of the vacuum chamber main body is fixedly provided with an air outlet; and an air outlet is formed in one side of the air inlet. The positioning pipe used for determining the position of the welding part is arranged in the vacuum chamber body, when the welding part is fixed, the worm is rotated to drive the large worm gear so as to change the angle of the limiting rod, but the positioning rod cannot rotate, so that the positioning rod cannot rotate in the rotating process of the large worm gear, and the welding part is fixed. The first limiting rod and the fourth limiting rod which are installed on the positioning pipe can deviate relative to the positioning pipe, so that the area of an area defined by the four limiting rods is adjusted, and then the purpose of adjusting the position of a welding piece is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of electron beam welding machines, in particular to an electron beam welding machine suitable for large arc welding. Background Art

[0002] Electron beam welding machine is a high-tech equipment that uses electron beam as heat source for welding, while large arc welding is a welding process that is usually used to connect large areas of metal structures.

[0003] For example, the "electron beam welding machine suitable for large arc welding" with publication number: CN107538123A includes a bracket, an electron gun, an electron gun vacuum system, a vacuum welding chamber, a left arc vacuum chamber, a right arc vacuum chamber, a welding chamber vacuum system and a CNC control operating cabinet, and also includes an arc motion workbench and a dynamic sealing slide system. The arc motion workbench can move along the arc guide rails between the left arc vacuum chamber, the right arc vacuum chamber and the vacuum welding chamber. Under the control of the CNC control operating cabinet, the dynamic sealing slide system drives the electron gun to move up and down on the workpiece to be welded on the arc motion workbench to perform vertical straight line welds.

[0004] However, in the prior art, the main function of the electron beam welding machine is to perform precise welding, and the main processing objects are small and medium-sized objects. In the process of large arc welding of rod-shaped workpieces, since the rod-shaped workpieces are too long and have a certain volume, their stability cannot be guaranteed during the welding process in the electron beam welding machine. Once shaking occurs, it will directly affect the welding effect and easily cause the problem of misalignment of the welding parts. Summary of the invention

[0005] The purpose of the present invention is to provide an electron beam welding machine suitable for large arc welding, so as to solve the problem proposed in the above background technology that during the welding process in the electron beam welding machine, its stability cannot be guaranteed. Once shaking occurs, it will directly affect the welding effect and easily cause the problem of misalignment of the welding part.

[0006] To achieve the above object, the present invention provides the following technical solution: an electron beam welding machine suitable for large arc welding, comprising a vacuum chamber body, one side of the vacuum chamber body is fixedly connected to a control console, both ends of the vacuum chamber body are fixedly installed with positioning brackets, one side of the vacuum chamber body is fixedly installed with an air inlet, one side of the air inlet is provided with an air outlet, and a positioning component is movably installed inside the vacuum chamber body; The positioning assembly includes a positioning tube, a large worm wheel and a worm, the worm and the large worm wheel are meshingly connected, the large worm wheel is rotatably mounted on the outer wall of the positioning tube, the large worm wheel is located at one end of the positioning tube, one end of the large worm wheel is rotatably connected to a symmetrically distributed first limit rod and a second limit rod, one end of the positioning tube is rotatably connected to a symmetrically distributed third limit rod and a fourth limit rod, the first limit rod and the fourth limit rod are parallel to each other and located on the same vertical plane, the second limit rod and the third limit rod are parallel to each other and located on the same vertical plane, the fourth limit rod is located on one side of the second limit rod, the large worm wheel and the worm are perpendicular to each other, the worm is located at the bottom of the positioning tube, a positioning frame is fixedly mounted on the inner wall of the vacuum chamber body, and the positioning tube is fixedly mounted inside the positioning frame.

[0007] Preferably, the first limiting rod, the second limiting rod, the third limiting rod and the fourth limiting rod are rod bodies with the same length and thickness, and one end of the first limiting rod is slidably connected to a connecting rod.

[0008] Preferably, one end of the connecting rod and the other end of the first limiting rod are both fixedly mounted with positioning heads, and the positioning heads are perpendicular to the first limiting rod and the connecting rod.

[0009] Preferably, a docking rod is fixedly mounted on one end of the positioning head, the positioning head at one end of the connecting rod is rotationally connected to the positioning tube, and the positioning head at one end of the first limiting rod is rotationally connected to the large worm gear.

[0010] Preferably, a cavity is provided inside the connecting rod, one end of the first limiting rod is located inside the cavity, and the shape of the cavity matches the shape of the first limiting rod.

[0011] Preferably, one end of the worm is fixedly connected to a transmission rod, and an arc groove is provided at the junction of the transmission rod and the worm, and the curvature of the arc groove is adapted to the curvature of the large worm wheel.

[0012] Preferably, one end of the transmission rod is fixedly connected to an extension rod, and the other end of the extension rod is fixedly connected to a docking protrusion, and a hexagonal hole is provided inside the docking protrusion.

[0013] Preferably, a hollow tube is fixedly installed at the bottom of the vacuum chamber body, one end of the hollow tube is threadedly connected with a blocking block, and the worm is located inside the hollow tube.

[0014] Preferably, a closing cover is movably connected to one end of the vacuum chamber body, a first ring is fixedly installed at the edge of the closing cover, a second ring is fixedly installed at the edge of the vacuum chamber body, and one side of the second ring overlaps with one side of the first ring.

[0015] Preferably, a positioning plate is provided at the intersection of the first circular ring and the second circular ring, both ends of the positioning plate are rotatably connected to a horizontal plate, the other end of the horizontal plate is fixedly connected to a vertical plate, the two vertical plates are respectively attached to one side of the first circular ring and one side of the second circular ring, and a screw is threadedly connected between the two vertical plates.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a positioning tube for determining the position of the welded part is arranged inside the main body of the vacuum chamber, and the electron beam welding device is mainly installed on the inner wall of the positioning tube. When welding, the position of the welded part is determined by the first limiting rod, the second limiting rod, the third limiting rod and the fourth limiting rod. The limiting rods are parallel to each other and are arranged on two different vertical planes. When fixing the welded part, the large worm gear is driven by rotating the worm to change the angle of the limiting rod. However, since the positioning rod does not rotate, during the rotation of the large worm gear, the first limiting rod and the fourth limiting rod installed thereon will be offset relative to the positioning tube, so as to adjust the area of ​​the area surrounded by the four limiting rods, thereby achieving the purpose of adjusting the position of the welded part.

[0017] 2. In the present invention, the positions and moving routes of the four limit rods are determined by setting connecting rods, so as to ensure that they can adapt to the changes in the position of the positioning head. During the rotation of the large worm gear, the changes in the position of the positioning head will drive the limit rods. When the positioning head on the large worm gear is away from the positioning head on the positioning tube, the limit rod will be pulled out from the connecting rod, and when the positioning head on the large worm gear is close to the positioning head on the positioning tube, the limit rod will extend into the cavity of the connecting rod, thereby adjusting the position of the welded part.

[0018] 3. In the present invention, the worm is arranged at the bottom of the vacuum chamber body, and the existence of the arc groove can also avoid affecting the normal rotation of the large worm wheel, and the worm wheel and the worm have a self-locking function, thereby ensuring that the large worm wheel will not rotate by itself, and the stability of the four limit rods can be guaranteed. At the same time, a hollow tube is separately arranged at the bottom of the vacuum chamber body to accommodate the worm, and a blocking block is arranged at the end of the hollow tube to ensure that it will not affect the sealing of the vacuum chamber body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a three-dimensional structure of one side of an electron beam welding machine suitable for large arc welding according to the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the structure of part A in the middle; Figure 3 It is a schematic diagram of the three-dimensional structure of the other side of an electron beam welding machine suitable for large arc welding according to the present invention; Figure 4 It is a schematic diagram of the planar structure of a positioning assembly of an electron beam welding machine suitable for large arc welding according to the present invention; Figure 5 It is a schematic diagram of the internal planar structure of a vacuum chamber main body of an electron beam welding machine suitable for large arc welding according to the present invention; Figure 6 It is a schematic diagram of the connection and structure of a large worm gear and worm of an electron beam welding machine suitable for large arc welding of the present invention; Figure 7 The present invention is a schematic diagram of the structure of a first limit rod and a connecting rod of an electron beam welding machine suitable for large arc welding.

[0020] In the figure: 1. Vacuum chamber body; 2. Positioning bracket; 3. First ring; 4. Second ring; 5. Positioning assembly; 6. Control console; 7. Positioning plate; 8. Horizontal plate; 9. Vertical plate; 10. Screw; 11. Air inlet; 12. Air outlet; 13. Hollow tube; 14. Blocking block; 51. Closing cover; 52. Positioning tube; 53. Large worm gear; 54. First limiting rod; 55. Third limiting rod; 56. Second limiting rod; 57. Fourth limiting rod; 58. Transmission rod; 59. Arc groove; 510. Worm; 511. Extension rod; 512. Docking protrusion; 513. Positioning frame; 514. Connecting rod; 515. Positioning head; 516. Docking rod; 517. Cavity. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown: an electron beam welding machine suitable for large arc welding, comprising a vacuum chamber body 1, a control console 6 is fixedly connected to one side of the vacuum chamber body 1, positioning brackets 2 are fixedly installed at both ends of the vacuum chamber body 1, an air inlet 11 is fixedly installed on one side of the vacuum chamber body 1, an air outlet 12 is arranged on one side of the air inlet 11, and a positioning component 5 is movably installed inside the vacuum chamber body 1; The positioning assembly 5 includes a positioning tube 52, a large worm wheel 53 and a worm 510. The worm 510 is meshed with the large worm wheel 53. The large worm wheel 53 is rotatably mounted on the outer wall of the positioning tube 52. The large worm wheel 53 is located at one end of the positioning tube 52. One end of the large worm wheel 53 is rotatably connected to a symmetrically distributed first limiting rod 54 and a second limiting rod 56. One end of the positioning tube 52 is rotatably connected to a symmetrically distributed third limiting rod 55 and a fourth limiting rod 57. The first limiting rod 54 and the fourth limiting rod 57 are parallel to each other and are located on the same vertical plane. The second limiting rod 56 and the third limiting rod 55 are parallel to each other and are located on the same vertical plane. The fourth limiting rod 57 is located on one side of the second limiting rod 56, the large worm wheel 53 and the worm 510 are perpendicular to each other, the worm 510 is located at the bottom of the positioning tube 52, a positioning frame 513 is fixedly installed on the inner wall of the vacuum chamber body 1, and the positioning tube 52 is fixedly installed inside the positioning frame 513. The first limiting rod 54, the second limiting rod 56, the third limiting rod 55 and the fourth limiting rod 57 are rod bodies of the same length and thickness, one end of the first limiting rod 54 is slidably connected to the connecting rod 514, one end of the connecting rod 514 and the other end of the first limiting rod 54 are fixedly installed with a positioning head 515, and the positioning head 515 and the first limiting rod 54 and the connecting rod 514 are perpendicular to each other. A docking rod 516 is fixedly installed at one end of the positioning head 515, the positioning head 515 at one end of the connecting rod 514 is rotatably connected to the positioning tube 52, the positioning head 515 at one end of the first limiting rod 54 is rotatably connected to the large worm gear 53, a cavity 517 is opened inside the connecting rod 514, one end of the first limiting rod 54 is located inside the cavity 517, and the shape of the cavity 517 is adapted to the shape of the first limiting rod 54.

[0023] In this embodiment, the vacuum chamber body 1 is used to accommodate welding parts and welding components required by welding equipment. The electron beam welding accessories are installed on the inner wall of the positioning tube 52. The vacuum chamber body 1 is controlled by the control console 6. The air inlet 11 and the air outlet 12 on one side are used to control the vacuum state. The vacuum chamber body 1 can be evacuated to a vacuum state by closing the air inlet 11 and exhausting air from the air outlet 12. The first limiting rod 54, the second limiting rod 56, the third limiting rod 55 and the fourth limiting rod 57 are rods of the same length and thickness. The first limiting rod 54 is taken as an example for explanation. When in use, the rod-shaped weldment is placed in the positioning tube 52, and the specific position is limited by the first limiting rod 54, the second limiting rod 56, the third limiting rod 55 and the fourth limiting rod 57. The first limiting rod 54, the second limiting rod 56, the third limiting rod 55 and the fourth limiting rod 57 enclose a rectangular space, and the weldment is in the rectangular space. After the welded parts are placed, the worm 510 is rotated to drive the large worm gear 53. During the rotation of the large worm gear 53, the positioning head 515 installed thereon is driven. When the positioning head 515 on the large worm gear 53 is away from the positioning head 515 on the positioning tube 52, the first limiting rod 54 will be pulled out from the connecting rod 514. When the positioning head 515 on the large worm gear 53 is close to the positioning head 515 on the positioning tube 52, the first limiting rod 54 will extend into the cavity 517 of the connecting rod 514, so as to adjust the area of ​​the rectangular space. The positioning head 515 is connected to the large worm gear 53 and the positioning tube 52 through the docking rod 516.

[0024] Embodiment 2: According to Figure 4 , Figure 5 and Figure 6 As shown, one end of the worm 510 is fixedly connected to a transmission rod 58, and an arc groove 59 is provided at the intersection of the transmission rod 58 and the worm 510. The curvature of the arc groove 59 is adapted to the curvature of the large worm wheel 53. One end of the transmission rod 58 is fixedly connected to an extension rod 511, and the other end of the extension rod 511 is fixedly connected to a docking protrusion 512, and a hexagonal hole is provided inside the docking protrusion 512. A hollow tube 13 is fixedly installed at the bottom of the vacuum chamber body 1, and a blocking block 14 is threadedly connected to one end of the hollow tube 13. The worm 510 is located inside the hollow tube 13.

[0025] In this embodiment, the transmission rod 58 is used to connect the extension rod 511 and the worm 510, so as to reduce the difficulty of rotating the worm 510. When the worm 510 needs to be rotated, the hexagonal rod is inserted into the hexagonal hole of the docking protrusion 512. During the rotation of the worm 510, the worm 510 will drive the large worm wheel 53. The existence of the arc groove 59 can ensure that the worm 510 will not affect the rotation of the large worm wheel 53. The worm 510 , the transmission rod 58 and the extension rod 511 are all arranged inside the hollow tube 13 to ensure the overall structural stability, and the blocking block 14 connected to the end of the hollow tube 13 can maintain the airtightness inside the vacuum chamber body 1 .

[0026] Embodiment 3: According to Figure 2 , Figure 3 and Figure 5 As shown, one end of the vacuum chamber body 1 is movably connected with a closing cover 51, a first circular ring 3 is fixedly installed at the edge of the closing cover 51, a second circular ring 4 is fixedly installed at the edge of the vacuum chamber body 1, one side of the second circular ring 4 and one side of the first circular ring 3 are overlapped with each other, a positioning plate 7 is provided at the intersection of the first circular ring 3 and the second circular ring 4, both ends of the positioning plate 7 are rotatably connected with a horizontal plate 8, the other end of the horizontal plate 8 is fixedly connected with a vertical plate 9, the two vertical plates 9 are respectively attached to one side of the first circular ring 3 and one side of the second circular ring 4, and a screw 10 is threadedly connected between the two vertical plates 9.

[0027] In this embodiment, the closing cover 51 can be removed from the vacuum chamber body 1 to place and remove the rod-shaped welding member. After the closing cover 51 is installed on the vacuum chamber body 1, the vertical plate 9 is attached to the first circular ring 3 and the second circular ring 4, and then the screw 10 is installed to connect the first circular ring 3 and the second circular ring 4, thereby completing the installation of the closing cover 51. During subsequent disassembly, the horizontal plate 8 can rotate around the positioning plate 7 to change the angle of the vertical plate 9, thereby releasing the first ring 3 and the second ring 4.

[0028] The use method and working principle of the device: when in use, first remove the closing cover 51 from the vacuum chamber body 1, then put the rod-shaped welding piece into the positioning tube 52 to contact the first limiting rod 54, the second limiting rod 56, the third limiting rod 55 and the fourth limiting rod 57. The first limiting rod 54, the second limiting rod 56, the third limiting rod 55 and the fourth limiting rod 57 enclose a rectangular space, and the welding piece is in the rectangular space; After the weldment is placed, the hexagonal rod is inserted into the hexagonal hole of the docking protrusion 512, and the large worm gear 53 is driven by rotating the worm 510. The large worm gear 53 will drive the positioning head 515 installed thereon during the rotation. When the positioning head 515 on the large worm gear 53 is away from the positioning head 515 on the positioning tube 52, the first limiting rod 54 will be pulled out from the connecting rod 514, and when the positioning head 515 on the large worm gear 53 is close to the positioning head 515 on the positioning tube 52, the first limiting rod 54 will extend into the cavity 517 of the connecting rod 514, and the purpose of adjusting the position of the weldment is achieved by adjusting the area of ​​the rectangular space; After determining the position of the welding part, pull out the hexagonal rod and install the blocking block 14 at the end of the hollow tube 13, close the air inlet 11 and evacuate the air from the air outlet 12 to evacuate the vacuum chamber body 1 to prepare for welding. The electron beam welding accessories are installed on the inner wall of the positioning tube 52 and controlled by the console 6.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electron beam welding machine suitable for large arc welding, comprising a vacuum chamber body (1), one side of the vacuum chamber body (1) being fixedly connected to a control console (6), both ends of the vacuum chamber body (1) being fixedly mounted with positioning brackets (2), one side of the vacuum chamber body (1) being fixedly mounted with an air inlet (11), and one side of the air inlet (11) being provided with an air outlet (12), characterized in that: A positioning assembly (5) is movably installed inside the vacuum chamber body (1); The positioning assembly (5) comprises a positioning tube (52), a large worm wheel (53) and a worm (510); the worm (510) is meshingly connected to the large worm wheel (53); the large worm wheel (53) is rotatably mounted on the outer wall of the positioning tube (52); the large worm wheel (53) is located at one end of the positioning tube (52); one end of the large worm wheel (53) is rotatably connected to a symmetrically distributed first limit rod (54) and a second limit rod (56); one end of the positioning tube (52) is rotatably connected to a symmetrically distributed third limit rod (55) and a fourth limit rod (57); The first limiting rod (54) and the fourth limiting rod (57) are parallel to each other and are located on the same vertical plane. The second limiting rod (56) and the third limiting rod (55) are parallel to each other and are located on the same vertical plane. The fourth limiting rod (57) is located on one side of the second limiting rod (56). The large worm wheel (53) and the worm (510) are perpendicular to each other. The worm (510) is located at the bottom of the positioning tube (52). A positioning frame (513) is fixedly mounted on the inner wall of the vacuum chamber body (1). The positioning tube (52) is fixedly mounted inside the positioning frame (513).

2. The electron beam welding machine suitable for large arc welding according to claim 1, characterized in that: The first limiting rod (54), the second limiting rod (56), the third limiting rod (55) and the fourth limiting rod (57) are rod bodies of the same length and thickness, and one end of the first limiting rod (54) is slidably connected to a connecting rod (514).

3. The electron beam welding machine suitable for large arc welding according to claim 2, characterized in that: One end of the connecting rod (514) and the other end of the first limiting rod (54) are both fixedly mounted with a positioning head (515), and the positioning head (515) and the first limiting rod (54) and the connecting rod (514) are all perpendicular to each other.

4. The electron beam welding machine suitable for large arc welding according to claim 3, characterized in that: A docking rod (516) is fixedly mounted on one end of the positioning head (515); the positioning head (515) at one end of the connecting rod (514) is rotatably connected to the positioning tube (52); and the positioning head (515) at one end of the first limiting rod (54) is rotatably connected to the large worm gear (53).

5. The electron beam welding machine suitable for large arc welding according to claim 4, characterized in that: A cavity (517) is provided inside the connecting rod (514), one end of the first limiting rod (54) is located inside the cavity (517), and the shape of the cavity (517) matches the shape of the first limiting rod (54).

6. The electron beam welding machine suitable for large arc welding according to claim 1, characterized in that: One end of the worm (510) is fixedly connected to a transmission rod (58), and an arc-shaped groove (59) is provided at the intersection of the transmission rod (58) and the worm (510), and the arc of the arc-shaped groove (59) is adapted to the arc of the large worm wheel (53).

7. The electron beam welding machine suitable for large arc welding according to claim 6, characterized in that: One end of the transmission rod (58) is fixedly connected to an extension rod (511), and the other end of the extension rod (511) is fixedly connected to a docking protrusion (512), wherein a hexagonal hole is provided inside the docking protrusion (512).

8. The electron beam welding machine suitable for large arc welding according to claim 1, characterized in that: A hollow tube (13) is fixedly mounted on the bottom of the vacuum chamber body (1), one end of the hollow tube (13) is threadedly connected to a blocking block (14), and the worm (510) is located inside the hollow tube (13).

9. The electron beam welding machine suitable for large arc welding according to claim 1, characterized in that: One end of the vacuum chamber body (1) is movably connected to a closed cover (51), a first circular ring (3) is fixedly mounted on the edge of the closed cover (51), and a second circular ring (4) is fixedly mounted on the edge of the vacuum chamber body (1), one side of the second circular ring (4) overlaps one side of the first circular ring (3).

10. The electron beam welding machine suitable for large arc welding according to claim 9, characterized in that: A positioning plate (7) is provided at the intersection of the first circular ring (3) and the second circular ring (4); both ends of the positioning plate (7) are rotatably connected to a horizontal plate (8); the other end of the horizontal plate (8) is fixedly connected to a vertical plate (9); the two vertical plates (9) are respectively attached to one side of the first circular ring (3) and one side of the second circular ring (4); a screw rod (10) is threadedly connected between the two vertical plates (9).

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