Tunnel type continuous vacuum electron beam welding machine

Abstract

The utility model provides a tunnel type continuous vacuum electron beam welding machine, which relates to the technical field of welding and comprises a main vacuum chamber and an auxiliary vacuum chamber, an electron gun is arranged on the top surface of the main vacuum chamber, an electromagnetic beam splitter is arranged in the electron gun, an incomplete gear is rotatably connected to the inner side surface of the main vacuum chamber, and a pre-extraction opening is formed in the top surface of the auxiliary vacuum chamber. The main vacuum chamber, the auxiliary vacuum chamber and the electromagnetic beam splitter are adopted, the vacuum degree is always kept when the main vacuum chamber works, periodic air exhaust and inflation are not needed, a workpiece bin is pre-vacuumized step by step through a pre-extraction opening, the welding vacuum degree is achieved when a part reaches a welding station of the main vacuum chamber, the vacuumizing time is greatly shortened, the part is directly conveyed in a vacuum state, and the welding efficiency is improved. The vacuum damage to the main vacuum chamber during part loading and unloading is avoided, the auxiliary working time occupied by loading, unloading and vacuumizing is shortened, the production efficiency is remarkably improved, meanwhile, the special electromagnetic beam splitter can divide the electron beam into two or more beams, the welding process is integrally optimized, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding technical field especially relates to tunnel type continuous vacuum electron beam welder. BACKGROUND

[0002] At present, the vacuum electron beam welder mostly adopts a vacuum chamber, a set of workbench and the vacuum layout mode of driving system, and its shortage lies in that the vacuum chamber must be pumped from normal pressure state to vacuum state in each work beat, so the auxiliary work time occupied by vacuum pumping is longer, and the vacuum chamber must be inflated in each work beat to carry out the operation of loading and unloading workpieces, so a large part of auxiliary work time is occupied, compared with very short welding time, the time of loading and unloading workpieces and the vacuum pumping time account for a considerable proportion of the whole welding cycle. SUMMARY

[0003] The utility model discloses a tunnel type continuous vacuum electron beam welder which solves the problems in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tunnel type continuous vacuum electron beam welder, comprising a main vacuum chamber and a secondary vacuum chamber, the top surface of the main vacuum chamber is provided with an electron gun, the inside of the electron gun is provided with an electromagnetic beam splitter, the inside side surface of the main vacuum chamber is rotatably connected with an incomplete gear, the top surface of the secondary vacuum chamber is provided with a pre-pumping port, the inside of the secondary vacuum chamber is provided with a workpiece bin, the surface of the workpiece bin is rotatably connected with a workpiece driving gear, and the surface of the workpiece bin is provided with a rotary support structure.

[0005] Preferably, the secondary vacuum chamber is in the shape of an elongated pipeline and is in communication with the main vacuum chamber.

[0006] Preferably, one side of the secondary vacuum chamber is provided with an inlet, and the other side of the secondary vacuum chamber is provided with an outlet.

[0007] Preferably, one end of the workpiece bin is provided with a first sealing ring, and the other end of the workpiece bin is provided with a second sealing ring.

[0008] Preferably, the shape and position of the incomplete gear are adapted to the workpiece driving gear, and the incomplete gear is engaged with the workpiece driving gear.

[0009] Preferably, the surface of the rotary support structure is provided with a part, and the part is rotatably connected with the workpiece bin through the workpiece driving gear and the rotary support structure.

[0010] Preferably, the pre-pumping port is linearly arranged in two, and the shape of the workpiece bin is adapted to the shape of the secondary vacuum chamber.

[0011] Beneficial effects

[0012] The utility model discloses, adopt main vacuum chamber, vice vacuum chamber and electromagnetic beam splitter, main vacuum chamber always keeps the vacuum degree when working, need not periodic air pumping, in the vice vacuum chamber, the first sealing ring and the second sealing ring of the front and rear setting of workpiece bin divide into several independent closed space, through the pre -pumping port, workpiece bin is pre -vacuum gradually, when the part reaches the main vacuum chamber welding station, has reached the welding vacuum degree, greatly shorten the vacuum time, and the part is directly transported under the vacuum state, avoided the damage of main vacuum chamber vacuum when loading and unloading the part, reduced the auxiliary working time of loading and unloading and pumping, improved production efficiency significantly, simultaneously, the special electromagnetic beam splitter can divide electron beam into two or more, can weld multiple weld joints or multiple electron beams simultaneously weld a weld joint, further improve the welding efficiency, optimize the welding process as a whole, reduce the production cost, strengthen the applicability and competitiveness of equipment in the large -scale industrialization production of small -size parts. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is the structure diagram of the utility model;

[0014] Fig. 2 It is the structure diagram of the workpiece bin of the utility model;

[0015] Fig. 3 It is the drive schematic diagram of the incomplete gear and workpiece drive gear of the utility model.

[0016] LEGEND:

[0017] 1, main vacuum chamber;2, vice vacuum chamber;3, electron gun;4, electromagnetic beam splitter;5, incomplete gear;6, workpiece drive gear;7, pre -pumping port;8, workpiece bin;9, rotary support structure;10, part;11, first sealing ring;12, second sealing ring;13, entrance;14, export. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the following further describes the utility model in combination with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without creative labor all belong to the protection scope of the utility model.

[0019] The specific embodiments of the utility model are described below in combination with the drawings.

[0020] REFERENCE Figs. 1-3The tunnel type continuous vacuum electron beam welding machine comprises a main vacuum chamber 1 and a secondary vacuum chamber 2. The main vacuum chamber 1 is always kept in a certain vacuum degree range during operation to provide stable vacuum conditions for welding, which reduces the risk of vacuum degree fluctuation caused by frequent operation and is beneficial to ensure the consistency of welding quality. The main vacuum chamber 1 provides installation and working space for components such as electron gun 3 and incomplete gear 5, so that the welding process can be smoothly carried out. The secondary vacuum chamber 2 is in the shape of an elongated pipeline and is connected with the main vacuum chamber 1. The secondary vacuum chamber 2 serves as a transition passage for the workpiece warehouse 8 to enter the main vacuum chamber 1 from the outside. The high smoothness of the inner wall of the secondary vacuum chamber 2 helps to reduce the frictional resistance when the workpiece warehouse 8 moves and is also beneficial to maintain a certain vacuum degree. During the workpiece conveying process, the secondary vacuum chamber 2 plays a role in isolating the outside atmosphere from the main vacuum chamber 1, preventing a large amount of outside air from flowing into the main vacuum chamber 1 during workpiece loading and unloading and conveying, and protecting the vacuum environment of the main vacuum chamber 1. An inlet 13 is arranged on one side of the secondary vacuum chamber 2, and an outlet 14 is arranged on the other side of the secondary vacuum chamber 2. The inlet 13 is the entry point of the workpiece warehouse 8 into the secondary vacuum chamber 2 from the outside, and the outlet 14 is the exit point of the welded workpiece from the secondary vacuum chamber 2 to the outside. Their design facilitates the entry and exit operation of the workpiece warehouse 8. At the same time, the workpiece warehouse 8 is sequentially sent into the secondary vacuum chamber 2 and the main vacuum chamber 1 through the external feeding mechanism at the inlet 13.

[0021] The top surface of the main vacuum chamber 1 is provided with an electron gun 3, the inside of the electron gun 3 is provided with an electromagnetic beam splitter 4, the electron gun 3 is a welding energy source, generates a high-speed electron beam through internal electron emission device to provide the required energy for welding, the internal electromagnetic beam splitter 4 can divide the electron beam into two or more beams, according to the welding requirements, one can weld multiple weld joints or let multiple electron beams weld a weld joint at the same time, improve the welding efficiency, by changing the beam splitting parameters, it can adapt to the welding requirements of parts 10 of different shapes and structures, and enhance the versatility of the equipment, the inside of the main vacuum chamber 1 is rotatably connected with an incomplete gear 5, the shape and position of the incomplete gear 5 are matched with the workpiece driving gear 6, and the incomplete gear 5 is engaged with the workpiece driving gear 6, the incomplete gear 5 is rotated by external motor equipment, the incomplete gear 5 is incomplete, the toothed part is engaged with the workpiece driving gear 6 on the workpiece bin 8, and the incomplete gear 5 provides rotating power for the parts 10 during welding, by accurately controlling the rotating speed and angle of the incomplete gear 5, the uniform rotation of the parts 10 during welding can be realized, when the incomplete gear 5 continues to rotate, the tooth part rotates out and disengages, when the toothless part of the incomplete gear 5 faces the workpiece bin 8, the rotation stops, the next workpiece bin 8 is pushed into the welding position, and the welded parts 10 are pushed into the outlet 14 of the secondary vacuum chamber 2, so that the next welding cycle starts, the top surface of the secondary vacuum chamber 2 is provided with a pre-evacuation port 7, the pre-evacuation port 7 is linearly arranged in an array, the inside of the workpiece bin 8 is evacuated by the external connected evacuation equipment when the workpiece bin 8 passes through, the linear array of the two pre-evacuation ports 7 on the top surface is provided, the inside of the workpiece bin 8 is gradually pre-evacuated, so that the parts 10 reach the appropriate vacuum degree before entering the main vacuum chamber 1, avoiding time-consuming vacuum operation in the main vacuum chamber 1, and improving the production efficiency.

[0022] The inside of the sub-vacuum chamber 2 is provided with a workpiece bin 8, the shape of the workpiece bin 8 is matched with the shape of the sub-vacuum chamber 2, one end of the workpiece bin 8 is provided with a first sealing ring 11, the other end of the workpiece bin 8 is provided with a second sealing ring 12, the workpiece bin 8 provides installation and fixing positions for the parts 10, the shape is matched with the sub-vacuum chamber 2, and the workpiece bin 8 can move smoothly in the sub-vacuum chamber 2, when the workpiece bin 8 is located in the sub-vacuum chamber 2, the first sealing ring 11 and the second sealing ring 12 are located at both ends of the workpiece bin 8 respectively, and are tightly attached to the inner wall of the sub-vacuum chamber 2, so as to divide the inside of the sub-vacuum chamber 2 into multiple relatively independent sealed spaces, prevent air from entering or leaking from the gap between the workpiece bin 8 and the sub-vacuum chamber 2, they ensure the vacuum degree of different areas in the sub-vacuum chamber 2, ensure the smooth progress of the pre-evacuation process, make the workpiece reach the appropriate vacuum degree before entering the main vacuum chamber 1, and also prevent external air from entering to affect the vacuum environment of the main vacuum chamber 1, the surface of the workpiece bin 8 is rotationally connected with a workpiece driving gear 6, the workpiece driving gear 6 is engaged with the incomplete gear 5, the power of the incomplete gear 5 is transmitted to the parts 10, so that the parts 10 can rotate during welding, the surface of the workpiece bin 8 is provided with a rotating support structure 9, the rotating support structure 9 provides stable rotating support points for the parts 10, reduces the shaking and deviation of the parts 10 during rotation, the surface of the rotating support structure 9 is provided with the parts 10, and the parts 10 are rotationally connected with the workpiece bin 8 through the workpiece driving gear 6 and the rotating support structure 9, in the design of the workpiece bin 8, the workpiece driving gear 6 and the rotating support structure 9 work together to enable the parts 10 to be stably installed on the workpiece bin 8 and realize rotating movement.

[0023] Firstly, the external feeding mechanism sends the workpiece bin 8 carrying the parts 10 into the sub-vacuum chamber 2 from the inlet 13 in sequence, the workpiece bin 8 moves in the sub-vacuum chamber 2, the shape is matched with the sub-vacuum chamber 2, and the first sealing ring 11 and the second sealing ring 12 at both ends ensure the sealing of the sub-vacuum chamber 2, the pre-evacuation port 7 performs step-by-step pre-evacuation on the internal space of the passing workpiece bin 8 through the external air extraction equipment, when the workpiece bin 8 reaches the welding position of the main vacuum chamber 1, the parts 10 have reached the appropriate vacuum degree, at this time, the high-speed electron beam generated by the electron emission device in the electron gun 3 on the top surface of the main vacuum chamber 1, the electromagnetic beam splitter 4 can split according to the needs, the toothed part of the incomplete gear 5 rotationally connected with the outside of the main vacuum chamber 1 is engaged with the workpiece driving gear 6 on the workpiece bin 8, the workpiece driving gear 6 transmits power to the parts 10, and the rotating support structure 9 provides stable support for the parts 10, so that the parts 10 rotate at a constant speed during welding, the electron beam welds the parts 10, after welding, the incomplete gear 5 continues to rotate until the toothed part is disengaged, the next workpiece bin 8 is pushed into the welding position, the welded parts 10 are pushed into the outlet 14 of the sub-vacuum chamber 2 and discharged to the outside, and the cycle is repeated to realize the tunnel type continuous vacuum electron beam welding operation.

[0024] In summary:

[0025] Adopt main vacuum chamber 1, auxiliary vacuum chamber 2 and electromagnetic beam splitter 4, main vacuum chamber 1 always keeps vacuum degree when working, need not periodic pumping, in auxiliary vacuum chamber 2, parts 10 are separated into several independent closed space by first sealing ring 11 and second sealing ring 12 arranged in front and back of workpiece bin 8, workpiece bin 8 is pre-evacuated by pre-evacuation port 7, so that parts 10 reach welding vacuum degree when reaching welding station of main vacuum chamber 1, greatly shorten the vacuum time, parts 10 are directly transported in vacuum state, avoid the damage to main vacuum chamber 1 vacuum when loading and unloading parts 10, reduce the auxiliary working time occupied by loading and unloading and vacuumizing, significantly improve the production efficiency, at the same time, special electromagnetic beam splitter 4 can divide electron beam into two or more, weld multiple weld joint or multiple electron beam simultaneously weld one weld joint, further improve the welding efficiency, optimize the welding process, reduce the production cost, enhance the applicability and competitiveness of the equipment in the large-scale industrialized production of small parts 10.

[0026] The basic principle, main characteristics and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. Tunnel-type continuous vacuum electron beam welding machine comprising a main vacuum chamber (1) and a secondary vacuum chamber (2), characterized in that: The top surface of the main vacuum chamber (1) is provided with an electron gun (3), the inside of the electron gun (3) is provided with an electromagnetic beam splitter (4), the inside side surface of the main vacuum chamber (1) is rotatably connected with an incomplete gear (5), the top surface of the auxiliary vacuum chamber (2) is provided with a pre-exhaust air port (7), the inside of the auxiliary vacuum chamber (2) is provided with a workpiece bin (8), the surface of the workpiece bin (8) is rotatably connected with a workpiece driving gear (6), and the surface of the workpiece bin (8) is provided with a rotary support structure (9).

2. The tunnel-type continuous vacuum electron beam welder according to claim 1, characterized in that: The auxiliary vacuum chamber (2) is in the shape of an elongated pipeline, and the auxiliary vacuum chamber (2) is communicated with the main vacuum chamber (1).

3. The tunnel-type continuous vacuum electron beam welder according to claim 1, characterized in that: An inlet (13) is formed in one side of the auxiliary vacuum chamber (2), and an outlet (14) is formed in the other side of the auxiliary vacuum chamber (2).

4. The tunnel-type continuous vacuum electron beam welder according to claim 1, characterized in that: One end of the workpiece bin (8) is provided with a first sealing ring (11), and the other end of the workpiece bin (8) is provided with a second sealing ring (12).

5. The tunnel-type continuous vacuum electron beam welder of claim 1, wherein: The shape and position of the incomplete gear (5) are matched with the workpiece driving gear (6), and the incomplete gear (5) is engaged with the workpiece driving gear (6).

6. The tunnel-type continuous vacuum electron beam welder of claim 1, wherein: The surface of the rotary support structure (9) is provided with a part (10), and the part (10) is rotatably connected with the workpiece bin (8) through the workpiece driving gear (6) and the rotary support structure (9).

7. The tunnel-type continuous vacuum electron beam welder of claim 1, wherein: The pre-exhaust air port (7) is linearly arranged in two, and the shape of the workpiece bin (8) is matched with the shape of the auxiliary vacuum chamber (2).

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