阅读说明：本技术 双面焊接式电子束焊装置及加工设备 (Double-side welding type electron beam welding device and processing equipment ) 是由 蔡树立 于 2021-04-12 设计创作，主要内容包括：本发明涉及焊接加工技术领域,尤其是指一种双面焊接式电子束焊装置及加工设备,电子束焊装置包括焊接平台、上焊接机构及下焊接机构,焊接平台用于承载工件；上焊接机构位于焊接平台的上方且用于发射电子束对工件的上方进行焊接；下焊接机构位于焊接平台的下方且用于发射电子束对工件的下方进行焊接。采用上焊接机构对工件的正面进行焊接,以及采用下焊接机构对工件的背面进行焊接,这样使正面背面两次焊接后的焊接热影响区,近似方形,抗拉拔能力大大增强,极大提高焊接质量,提升了产品的成品率,且相对于现有技术减少了翻转被焊接工件和二次焊接时对焊接机构抽真空的步骤,减少了加工所需时间,降低耗能,大大提高了加工效率。(The invention relates to the technical field of welding processing, in particular to a double-side welding type electron beam welding device and processing equipment, wherein the electron beam welding device comprises a welding platform, an upper welding mechanism and a lower welding mechanism, and the welding platform is used for bearing a workpiece; the upper welding mechanism is positioned above the welding platform and used for emitting an electron beam to weld the upper part of the workpiece; the lower welding mechanism is positioned below the welding platform and used for emitting an electron beam to weld the lower part of the workpiece. The front of the workpiece is welded by the upper welding mechanism, the back of the workpiece is welded by the lower welding mechanism, so that the welding heat affected zone of the front and the back after twice welding is approximately square, the anti-drawing capacity is greatly enhanced, the welding quality is greatly improved, the yield of products is improved, the step of vacuumizing the welding mechanism when the workpiece is welded and secondarily welded in an overturning mode is reduced compared with the prior art, the time required by machining is shortened, the energy consumption is reduced, and the machining efficiency is greatly improved.)

1. Two-sided welding formula electron beam welding device, its characterized in that: the method comprises the following steps:

a welding platform (100) for carrying a workpiece (800);

the upper welding mechanism (200) is positioned above the welding platform (100) and is used for emitting an electron beam (900) to weld the upper part of the workpiece (800);

and a lower welding mechanism (300) which is positioned below the welding platform (100) and is used for emitting an electron beam (900) to weld the lower part of the workpiece (800).

2. The double-sided welding type electron beam welding apparatus according to claim 1, wherein: the number of the upper welding mechanisms (200) is at least one; the number of the lower welding mechanisms (300) is at least one, and a gap is arranged between the horizontal direction of the upper welding mechanism (200) and the horizontal direction of the lower welding mechanism (300).

3. The double-side welding type electron beam welding apparatus according to claim 1 or 2, wherein: an included angle is formed between the machine body of the lower welding mechanism (300) and the plumb line or the vertical direction, and the included angle is an acute angle.

4. The double-side welding type electron beam welding apparatus according to claim 1 or 2, wherein: the welding platform is characterized by further comprising a shell (400), wherein the shell (400) is provided with an accommodating cavity (410) for accommodating the welding platform (100), a feeding hole (420) for allowing the workpiece (800) to enter the accommodating cavity (410), and a discharging hole (430) for allowing the workpiece (800) to move out of the accommodating cavity (410); the upper welding mechanism (200) is arranged above the shell (400), and the lower welding mechanism (300) is arranged below the shell (400).

5. The double-sided welding type electron beam welding apparatus according to claim 4, wherein: the welding platform (100) is provided with a limiting assembly (110) which is located in the accommodating cavity (410) and used for limiting the positions above and below the workpiece (800), the limiting assembly (110) comprises a first limiting part (111) and a second limiting part (112) which are vertically arranged, and a mounting seat (113) used for fixedly mounting the first limiting part (111) and the second limiting part (112), and a workpiece (800) channel (114) through which the workpiece (800) passes is arranged between the first limiting part (111) and the second limiting part (112).

6. The double-sided welding type electron beam welding apparatus according to claim 5, wherein: the limiting assembly (110) is arranged above the welding platform (100), and the welding platform (100) is provided with a first beam flow channel (120) for allowing an electron beam (900) emitted by the lower welding mechanism (300) to pass through.

7. The double-sided welding type electron beam welding apparatus according to claim 4, wherein: a lower beam leakage prevention plate (130) which is used for preventing the upper welding mechanism (200) from beam leakage and is arranged in the accommodating cavity (410) is arranged below the welding platform (100), and a second beam channel (140) for allowing an electron beam (900) of the lower welding mechanism (300) to pass is formed in the lower beam leakage prevention plate (130); and/or the presence of a gas in the gas,

an upper beam leakage prevention plate (150) which is used for preventing the lower welding mechanism (300) from beam leakage and is arranged in the accommodating cavity (410) is arranged above the welding platform (100), and a third beam flow channel (160) which is used for allowing an electron beam (900) of the upper welding mechanism (200) to pass through is formed in the upper beam leakage prevention plate (150).

8. The double-sided welding type electron beam welding apparatus according to claim 7, wherein: the lower beam leakage prevention plate (130) is provided with a first cooling assembly (170); and/or the upper beam leakage prevention plate (150) is provided with a second cooling assembly (180).

9. The double-sided welding type electron beam welding apparatus according to claim 4, wherein: the upper welding mechanism (200) is provided with a first sliding mechanism which comprises a first sliding assembly (500) used for enabling the upper welding mechanism (200) to be in sliding connection with the shell (400) and a first power source (510) used for driving the first sliding assembly (500) to slide back and forth in the horizontal direction; and/or the presence of a gas in the gas,

the lower welding mechanism (300) is provided with a second sliding mechanism which comprises a second sliding assembly (600) used for enabling the lower welding mechanism (300) to be in sliding connection with the shell (400) and a second power source (610) used for driving the second sliding assembly (600) to slide back and forth in the horizontal direction.

10. The processing equipment is characterized in that: comprising the double-side welding type electron beam welding apparatus according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of welding processing, in particular to a double-side welding type electron beam welding device and processing equipment.

Background

The electron beam welding has the advantages of no need of welding rods, difficult oxidation, good process repeatability and small thermal deformation, and is widely applied to various industries such as aerospace, atomic energy, national defense, military industry, automobiles, electrical and electronic instruments and the like. The basic principle of electron beam welding is that the cathode in the electron gun emits electrons due to direct or indirect heating, the electrons are accelerated by a high-voltage electrostatic field and focused by an electromagnetic field to form an electron beam with extremely high energy density, the electron beam is used for bombarding a workpiece, and huge kinetic energy is converted into heat energy to melt the workpiece at the welding position to form a molten pool, so that the workpiece is welded.

When a plurality of metal workpieces are welded together by the existing vacuum electron beam welding device, a welding mechanism is generally arranged above or below a welding platform, and an electron beam is emitted by the welding mechanism to weld the metal workpieces of all layers together. In order to ensure the welding quality, after the front side of the metal workpiece is welded, the metal workpiece needs to be turned over to weld the back side of the metal workpiece, and thus, the metal workpiece passes through a welding heat affected zone welded twice on the front side and the back side, and is approximately square, the drawing resistance is greatly enhanced, the welding quality is greatly improved, and the yield of products is improved.

Disclosure of Invention

The invention aims to solve the technical problem of providing a double-side welding type electron beam welding device and processing equipment, wherein an upper welding mechanism and a lower welding mechanism are adopted to weld the front side and the back side of a workpiece respectively, so that the welding quality of the workpiece is greatly improved, the steps of turning the welded workpiece and vacuumizing the welding mechanism during secondary welding are also reduced compared with the prior art, and the processing efficiency is greatly improved.

In order to solve the technical problems, the invention adopts the following technical scheme: two-sided welding formula electron beam welding device includes:

the welding platform is used for bearing a workpiece;

the upper welding mechanism is positioned above the welding platform and used for emitting electron beams to weld the upper part of the workpiece;

and the lower welding mechanism is positioned below the welding platform and is used for emitting an electron beam to weld the lower part of the workpiece.

Preferably, the number of the upper welding mechanisms is at least one; the number of the lower welding mechanisms is at least one, and a gap is arranged between the horizontal direction of the upper welding mechanism and the horizontal direction of the lower welding mechanism.

Preferably, an included angle is formed between the machine body of the lower welding mechanism and the plumb line or the vertical direction, and the included angle is an acute angle.

Preferably, the welding device further comprises a shell, wherein the shell is provided with an accommodating cavity for accommodating the welding platform, a feeding hole for allowing a workpiece to enter the accommodating cavity and a discharging hole for allowing the workpiece to move out of the accommodating cavity; the upper welding mechanism is arranged above the shell, and the lower welding mechanism is arranged below the shell.

Preferably, the welding platform is provided with a limiting assembly which is located in the accommodating cavity and used for limiting the positions above and below the workpiece, the limiting assembly comprises a first limiting part and a second limiting part which are vertically arranged, and a mounting base used for fixedly mounting the first limiting part and the second limiting part, and a workpiece channel used for allowing the workpiece to pass through is arranged between the first limiting part and the second limiting part.

Preferably, the limiting assembly is arranged above the welding platform, and the welding platform is provided with a first beam flow channel for passing an electron beam emitted by the lower welding mechanism.

Preferably, a lower beam leakage prevention plate which is used for preventing beam leakage of the upper welding mechanism and is arranged in the accommodating cavity is arranged below the welding platform, and a second beam current channel for allowing an electron beam of the lower welding mechanism to pass is formed in the lower beam leakage prevention plate; and/or the presence of a gas in the gas,

the upper part of the welding platform is provided with an upper beam-leakage-proof plate which is used for preventing the lower welding mechanism from beam leakage and is arranged in the accommodating cavity, and the upper beam-leakage-proof plate is provided with a third beam-flow passage through which an electron beam of the upper welding mechanism passes.

Preferably, the lower beam leakage prevention plate is provided with a first cooling assembly; and/or the upper beam leakage prevention plate is provided with a second cooling assembly.

Preferably, the upper welding mechanism is provided with a first sliding mechanism, and the first sliding mechanism comprises a first sliding assembly used for enabling the upper welding mechanism to be in sliding connection with the shell and a first power source used for driving the first sliding assembly to slide back and forth in the horizontal direction; and/or the presence of a gas in the gas,

the lower welding mechanism is provided with a second sliding mechanism which comprises a second sliding assembly used for enabling the lower welding mechanism to be in sliding connection with the shell and a second power source used for driving the second sliding assembly to slide back and forth in the horizontal direction.

Meanwhile, the invention also provides processing equipment which comprises the double-side welding type electron beam welding device.

The invention has the beneficial effects that: the invention provides a double-side welding type electron beam welding device, which adopts an upper welding mechanism to weld the front side of a workpiece and adopts a lower welding mechanism to weld the back side of the workpiece, so that a welding heat affected zone formed by welding the front side and the back side twice is approximate to a square shape, the drawing resistance is greatly enhanced, the welding quality is greatly improved, the yield of products is improved, compared with the prior art, the steps of turning over the welded workpiece and vacuumizing the welding mechanism during secondary welding are reduced, the processing time is shortened, the energy consumption is reduced, and the processing efficiency is greatly improved.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention.

Fig. 2 is a schematic longitudinal sectional structure diagram according to a first embodiment of the present invention.

Fig. 3 is a partially enlarged structural view of a portion B in fig. 2.

Fig. 4 is a partially enlarged structural view of a portion C in fig. 2.

Fig. 5 is a schematic perspective view of a hidden housing according to an embodiment of the invention.

Fig. 6 is a partially enlarged structural view of a portion D in fig. 5.

Fig. 7 is a schematic perspective view of a housing according to an embodiment of the invention.

Fig. 8 is a schematic perspective view of a first sliding mechanism according to a first embodiment of the present invention.

Fig. 9 is a schematic view of a longitudinal cross-sectional structure (water cooling method) according to a second embodiment of the present invention.

Fig. 10 is a schematic longitudinal sectional structure view (air cooling mode) according to a second embodiment of the present invention.

Description of reference numerals:

100-a welding platform, 110-a limiting component, 111-a first limiting component, 112-a second limiting component, 113-a mounting seat, 114-a workpiece channel, 120-a first beam current channel, 130-a lower beam current prevention plate, 140-a second beam current channel, 150-an upper beam current prevention plate, 160-a third beam current channel, 170-a first cooling component and 180-a second cooling component;

200-an upper welding mechanism;

300-lower welding mechanism;

400-shell, 410-containing cavity, 420-feed inlet, 430-discharge outlet, 440-upper shell, 450-middle shell, 460-lower shell and 470-chute;

500-a first sliding component, 510-a first power source, 520-a sliding platform, 530-a fixed platform, 540-a sliding rail, 550-a sliding block, 560-a driving shaft sleeve and 570-a connecting seat;

600-a second slide assembly, 610-a second power source;

700-a workpiece;

800-electron beam.

Detailed Description

The present invention will be further described with reference to the following examples for facilitating understanding of those skilled in the art, and the description of the embodiments is not intended to limit the present invention.

Fig. 1 to 8 show a first embodiment of a double-side welding type electron beam welding apparatus according to the present invention, which includes a welding stage 100, an upper welding mechanism 200, and a lower welding mechanism 300; the welding platform 100 is used for bearing a workpiece 800; the upper welding mechanism 200 is positioned above the welding platform 100 and is used for emitting an electron beam 900 to weld the workpiece 800; lower welding mechanism 300 is located below the welding platform 100 and is used to emit an electron beam 900 to weld under the workpiece 800.

Specifically, the upper welding mechanism 200 and the lower welding mechanism 300 are electron guns, which are available from commercial sources and are well known to those skilled in the art, and therefore will not be further described herein.

In practical application, the workpiece 800 is placed on the welding platform 100 through a conveying device, a manipulator or a manual work, the upper welding mechanism 200 is adopted to weld the front side of the workpiece 800, and the lower welding mechanism 300 is adopted to weld the back side of the workpiece 800, so that a welding heat affected zone formed by welding the front side and the back side twice is approximately square, the anti-drawing capacity is greatly enhanced, the welding quality is greatly improved, the yield of products is improved, the step of vacuumizing the welding mechanism when the workpiece 800 is turned over and welded twice is reduced compared with the prior art, the time required by machining is shortened, the energy consumption is reduced, and the machining efficiency is greatly improved.

In this embodiment, the number of the upper welding mechanisms 200 is at least one; the number of the lower welding mechanisms 300 is at least one.

Specifically, when the number of the upper welding mechanisms 200 is one, the upper welding mechanisms 200 and the lower welding mechanisms 300 are used in cooperation to achieve the effect of improving the welding quality and the yield of the workpiece 800 as described above, and when the number of the upper welding mechanisms 200 is at least two, the at least two upper welding mechanisms 200 are horizontally arranged above the welding platform 100, in practical applications, if a long metal workpiece 800 needs to be welded, the at least two upper welding mechanisms 200 can simultaneously weld at least two positions on the front surface of the metal workpiece 800 (the number of the at least two positions corresponds to the number of the upper welding mechanisms 200), so that the welding efficiency of the metal workpiece 800 is further improved.

Specifically, when the number of the lower welding mechanisms 300 is one, the upper welding mechanism 200 and the lower welding mechanism 300 are used in cooperation to achieve the effect of improving the welding quality and the yield of the workpiece 800 as described above, and when the number of the lower welding mechanisms 300 is at least two, the at least two lower welding mechanisms 300 are horizontally arranged below the welding platform 100, in practical applications, if a long metal workpiece 800 needs to be welded, the at least two lower welding mechanisms 300 can simultaneously weld at least two positions (the number of the at least two positions corresponds to the number of the lower welding mechanisms 300) on the back surface of the metal workpiece 800, so as to further improve the welding efficiency of the metal workpiece 800.

Further, a gap is provided between the horizontal direction of the upper welding mechanism 200 and the horizontal direction of the lower welding mechanism 300, that is, after the upper welding mechanism 200 completes the front welding of the position a on the metal workpiece 800 (where the position a is any position on the metal workpiece 800), the metal workpiece 800 needs to be conveyed for a certain distance, and then the lower welding mechanism 300 welds the back of the position a on the metal workpiece 800, so as to ensure the welding quality of the front and the back of the position a on the metal workpiece 800, and of course, after the back of the position a on the metal workpiece 800 is welded by the lower welding mechanism 300, the front of the position a on the metal workpiece 800A is welded by the upper welding mechanism 200, and the above effects can be achieved as well.

In this embodiment, an included angle is formed between the body of the lower welding mechanism 300 and the vertical line or the vertical direction, so that the downward movement path of the emission opening of the electronic beam emitted by the lower welding mechanism and the impurities (such as welding slag, welding spatters and other small particles) on the workpiece under the action of gravity is staggered, the impurities are greatly reduced from entering the lower welding mechanism 300, and the use stability of the lower welding mechanism 300 is further ensured.

Furthermore, the included angle is an acute angle, and the included angle is 2 to 30 degrees, so that the installation stability of the lower welding mechanism 300 is ensured, the phenomena that the distance of an electron beam line emitted by the lower welding mechanism 300 is long and the installation space of internal parts of an electron beam welding device is limited due to the fact that the included angle is too large are avoided, and the phenomenon that the lower welding mechanism 300 is affected due to the fact that impurities easily enter the lower welding mechanism 300 due to the fact that the included angle is too small is avoided; and preferably, the included angle is 3 degrees, so that the installation stability of the lower welding mechanism 300 is ensured, and the effect of reducing the entry of impurities into the lower welding mechanism 300 can be achieved.

Further, when the number of the lower welding mechanisms 300 is at least two, the two lower welding mechanisms 300 are arranged in one group, one lower welding mechanism 300 in each group inclines to the left, and the other lower welding mechanism 300 inclines to the right, so that when the machining direction of the workpiece 800 and the inclination direction of the lower welding mechanisms 300 are located on the same vertical plane, the consistency of the weld metal hot melting areas on the two sides of the workpiece 800 can be ensured, and the quality of a weld is ensured.

In this embodiment, the welding device further includes a housing 400, the housing 400 is provided with a receiving cavity 410 for receiving the welding platform 100, a feeding hole 420 for allowing the workpiece 800 to enter the receiving cavity 410, and a discharging hole 430 for allowing the workpiece 800 to move out of the receiving cavity 410; the upper welding mechanism 200 is disposed above the housing 400, and the lower welding mechanism 300 is disposed below the housing 400.

Specifically, the housing 400 includes an upper shell 440, a middle shell 450 and a lower shell 460 enclosing to form the accommodating cavity 410, wherein the upper end and the lower end of the middle shell 450 are detachably connected with the upper shell 440 and the lower shell 460 respectively, and the feed inlet 420 and the discharge outlet 430 are respectively opened at two sides of the middle shell 450, so as to facilitate assembly, replacement, maintenance and repair of internal parts of the electron beam welding device.

In this embodiment, the welding platform 100 is provided with a limiting assembly 110 located in the accommodating cavity 410 and used for limiting the positions above and below the workpiece 800, the limiting assembly 110 includes a first limiting member 111 and a second limiting member 112 arranged up and down, and a mounting base 113 used for fixedly mounting the first limiting member 111 and the second limiting member 112, and a workpiece 800 passage 114 through which the workpiece 800 passes is provided between the first limiting member 111 and the second limiting member 112.

Specifically, the first limiting member 111 is a circular roller structure or a square structure, and the second limiting member 112 is a circular roller structure or a square structure; when the first limiting part 111 and the second limiting part 112 are both of a circular roller structure, the first limiting part 111 and the second limiting part 112 of the circular roller structure rotate along with the workpiece 800 in a conveying state, so that the friction force is small, and the conveying smoothness of the workpiece 800 is high; when the first limiting part 111 is a round roller structure, the second limiting part 112 is a square structure, or the first limiting part 111 is a square structure, and the second limiting part 112 is a round roller structure, only one round roller is conveyed along with the workpiece 800 at the moment, the friction force is large, and the conveying smoothness of the workpiece 800 is good; when the first limiting part 111 and the second limiting part 112 are both of a square structure, the friction force of the workpiece 800 during conveying is relatively the largest in the two manners, but the first limiting part 111 and the second limiting part 112 of the square structure have the strongest limiting performance on the workpiece 800, so that the conveying accuracy of the workpiece 800 is ensured, and the welding quality of the workpiece 800 is further ensured.

Specifically, the number of the limiting assemblies 110 is at least two, and the at least two sets of limiting assemblies 110 are arranged on the welding platform 100 in an array manner to limit the workpiece 800 at multiple positions, so as to ensure the conveying precision and the welding quality of the workpiece 800.

In this embodiment, the limiting assembly 110 is disposed above the welding platform 100, and the welding platform 100 is provided with a first beam path 120 for passing an electron beam 900 emitted by the lower welding mechanism 300. The first beam path 120 is passed through by the electron beam 900 emitted from the lower welding mechanism 300, thereby achieving welding of the back surface of the workpiece 800.

In this embodiment, a lower beam leakage prevention plate 130 for preventing beam leakage of the upper welding mechanism 200 and disposed in the accommodating cavity 410 is disposed below the welding platform 100, and the lower beam leakage prevention plate 130 is provided with a second beam channel 140 for passing an electron beam 900 of the lower welding mechanism 300; and/or, an upper beam leakage prevention plate 150 for preventing the lower welding mechanism 300 from beam leakage and arranged in the accommodating cavity 410 is arranged above the welding platform 100, and the upper beam leakage prevention plate 150 is provided with a third beam flow channel 160 for allowing the electron beam 900 of the upper welding mechanism 200 to pass through.

Specifically, the upper and lower sides of welding platform 100 are respectively provided with upper leakage-proof beam plate 150 and lower leakage-proof beam plate 130, and upper leakage-proof beam plate 150 and lower leakage-proof beam plate 130 are leakage-proof beam copper plates, so that the leakage beam of welding mechanism 200 is shielded by upper leakage-proof beam plate 150, and the leakage beam of welding mechanism 300 is shielded by lower leakage-proof beam plate 130, so as to block electron beam 900 beam evaporation and splashing, so as to prevent evaporation and splashing metal particles from entering upper welding mechanism 200 and lower welding mechanism 300, and ensure the stability of upper welding mechanism 200 and lower welding mechanism 300.

In this embodiment, the upper welding mechanism 200 is provided with a first sliding mechanism, which includes a first sliding assembly 500 for slidably connecting the upper welding mechanism 200 with the housing 400, and a first power source 510 for driving the first sliding assembly 500 to slide back and forth in the horizontal direction; and/or, the lower welding mechanism 300 is provided with a second sliding mechanism, and the second sliding mechanism comprises a second sliding assembly 600 for enabling the lower welding mechanism 300 to be in sliding connection with the shell 400, and a second power source 610 for driving the second sliding assembly 600 to slide back and forth in the horizontal direction.

Specifically, the first slide mechanism and the second slide mechanism have the same structure, and therefore the first slide mechanism is taken as an example in the following explanation: the first sliding assembly 500 includes a sliding platform 520 and a fixed platform 530 which are arranged at intervals, a sliding rail 540 which is arranged on the bottom surface of the sliding platform 520, and a sliding block 550 which is arranged on the top surface of the fixed platform 530 and is slidably connected with the sliding rail 540, the upper welding mechanism 200 is arranged on the sliding platform 520, the first power source 510 is a driving motor, the output end of the driving motor is in transmission connection with a driving shaft sleeve 560, one side of the driving shaft sleeve 560 is provided with a connecting seat 570 which is fixedly connected with the sliding platform 520, and in practical application, the driving motor is started, and the sliding platform 520 can move back and forth in the horizontal direction through the transmission of the driving shaft sleeve 560 and the matching use of the sliding rail 540 and the sliding block 550; further, go up welding mechanism 200 and make its width horizontal direction round trip movement along work piece 800 through first slide mechanism, on the one hand the edge of accessible first slide mechanism to work piece 800 width welds to guarantee work piece 800's welding quality, on the other hand, make welding mechanism 200 can adjust according to work piece 800's specification and/or the specification of welding layer like this, in order to satisfy different processing demands.

The second sliding mechanism has the same structure as the first sliding mechanism, and can also achieve the effect of the first sliding mechanism, so further description is not given.

Specifically, the first sliding mechanism is disposed above the upper shell 440, and the second sliding mechanism is disposed in the accommodating cavity 410 of the lower shell 460; in practical applications, in order to ensure the vacuum tightness of the lower welding mechanism 300, a sealing ring (not shown) is generally disposed at the connection between the lower welding mechanism 300 and the first sliding mechanism, and if the second sliding mechanism is disposed below the lower shell 460, that is, the second sliding mechanism is exposed outside the lower shell 460, the problem that the sliding smoothness of the second sliding mechanism is poor due to the gravity of the lower welding mechanism 300 is easily caused, and therefore the second sliding mechanism is disposed in the accommodating cavity 410 of the lower shell 460, so as to solve the above problem and ensure the sliding smoothness of the second sliding mechanism.

Further, the lower shell 460 is provided with a sliding groove 470, the sliding groove 470 is used for reserving an installation space for the lower welding mechanism 300 to extend out, and meanwhile, a space is reserved for the lower welding mechanism 300 to slide, and a horizontal sliding direction of the second sliding mechanism is consistent with that of the first sliding mechanism, which is not described herein again.

The invention also provides processing equipment comprising the double-side welding type electron beam welding device. The electron beam welding device can be applied to processing equipment in various industries such as aerospace, atomic energy, national defense, military industry, automobiles, electrical and electronic instruments and the like so as to improve the processing quality and the processing efficiency of the workpiece 800.

Fig. 9 to 10 show a second embodiment of the double-side welding type electron beam welding apparatus according to the present invention, which is different from the above embodiments in that: the lower beam leakage prevention plate 130 is provided with a first cooling assembly 170; and/or, the upper bunch prevention plate 150 is provided with a second cooling assembly 180.

Specifically, the lower anti-bundle-leakage plate 130 is provided with a first cooling assembly 170, and the upper anti-bundle-leakage plate 150 is provided with a second cooling assembly 180; the first cooling assembly 170 may perform heat dissipation and cooling on the lower anti-leakage beam plate 130 in an air cooling or water cooling manner, when the first cooling assembly 170 performs air cooling, air flowing in the accommodating cavity 410 may be accelerated by a fan, so as to achieve rapid cooling in the accommodating cavity 410, at this time, an air inlet (not shown) and an air outlet (not shown) are formed in the casing 400, and the fan may be connected to a condenser (not shown), specifically referring to an air-conditioning fan structure, so as to further improve the cooling efficiency of the accommodating cavity 410; when the first cooling assembly 170 is water-cooled, a water-cooling pipeline is laid on the surface of the lower anti-leakage beam plate 130, and the lower anti-leakage beam plate 130 is cooled by a heat exchange mode by using the principle of heat transfer, so that the temperature of the accommodating cavity 410 and the processing environment of the workpiece 800 are ensured; therefore, the first cooling assembly 170 can dissipate heat and cool the lower beam leakage prevention plate 130 in an air cooling or water cooling mode, and aging loss of parts of the welding chamber caused by high-temperature radiation is reduced.

The second cooling assembly 180 has the same structure as the first cooling assembly 170, and can also achieve the effect of the first cooling assembly 170, and therefore, further description is omitted here.

Further, the first cooling module 170 and the second cooling module 180 may be both water-cooled or air-cooled, or one of the first cooling module 170 and the second cooling module 180 may be water-cooled and the other may be air-cooled, and the combination may be combined according to the production requirement.

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a number" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

The above-mentioned embodiments only express a plurality of embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.