阅读说明：本技术 一种层叠式旋转局部密封高真空电子束焊接机 (Laminated rotary local sealing high-vacuum electron beam welding machine ) 是由 黄以平 李少林 宋宜梅 于 2019-12-02 设计创作，主要内容包括：本发明公开一种层叠式旋转局部密封高真空电子束焊接机,涉及超长轴零部件的高真空电子束焊接机技术领域,主要结构包括真空焊接室、电子枪机构、焊接室真空系统、层叠式局部高真空旋转密封装置和真空箱；左焊接轴零件从真空焊接室左侧插入,并通过层叠式局部高真空旋转密封装置进行动密封,在保障左焊接轴零件转动的同时,还能保障真空焊接室内的密封要求,避免密封结构对零件表面的损伤并降低对零件表面的加工精度要求；右焊接轴零件从真空焊接室右侧插入,通过真空箱与真空焊接室密封。从而实现在焊接超长轴时无需建造大型的真空焊接室。(The invention discloses a laminated rotary local sealing high-vacuum electron beam welding machine, which relates to the technical field of high-vacuum electron beam welding machines for overlong shaft parts, and mainly structurally comprises a vacuum welding chamber, an electron gun mechanism, a welding chamber vacuum system, a laminated local high-vacuum rotary sealing device and a vacuum box; the left welding shaft part is inserted from the left side of the vacuum welding chamber and is dynamically sealed through the stacked local high-vacuum rotary sealing device, so that the rotation of the left welding shaft part is guaranteed, the sealing requirement in the vacuum welding chamber can be guaranteed, the damage of a sealing structure to the surface of the part is avoided, and the machining precision requirement on the surface of the part is reduced; the right welding shaft part is inserted from the right side of the vacuum welding chamber and is sealed with the vacuum welding chamber through a vacuum box. Therefore, a large-scale vacuum welding chamber is not required to be built when the overlong shaft is welded.)

1. A laminated rotary local sealing high vacuum electron beam welding machine is characterized by comprising a vacuum welding chamber, an electron gun mechanism and a welding chamber vacuum system; the electron gun mechanism is arranged at the top of the vacuum welding chamber, and the welding chamber vacuum system is arranged on one side of the vacuum welding chamber;

a laminated local high-vacuum rotary sealing device is arranged on the side wall of one end of the vacuum welding chamber, and an external rotary three-jaw power head is arranged outside one end of the vacuum welding chamber;

the vacuum welding chamber is characterized in that the other end of the vacuum welding chamber is located, an inner rotating three-jaw power head is arranged in the vacuum welding chamber, an auxiliary support is arranged on the outer wall of the other end of the vacuum welding chamber, and a detachable vacuum box is arranged on the outer wall of the other end of the vacuum welding chamber.

2. The stacked rotary partial seal high vacuum electron beam welding machine of claim 1, wherein a moveable door is provided on the other side of the vacuum welding chamber.

3. The stacked rotary partial seal high vacuum electron beam welding machine according to claim 1, wherein a left base frame is arranged outside one end of the vacuum welding chamber; the external rotation three-jaw power head is arranged on the left base frame in a sliding mode.

4. The stacked rotary partial-seal high-vacuum electron beam welding machine according to claim 1, wherein a V-shaped auxiliary support and a feeding and discharging mechanism are arranged outside one end of the vacuum welding chamber, two rotating wheels are arranged at the top of the V-shaped auxiliary support, rollers are arranged at the bottom of the V-shaped auxiliary support, long-axis parts to be welded are placed on the two rotating wheels, and the feeding and discharging mechanism is used for driving the linear movement of the long-axis parts to be welded.

5. The stacked rotary partial seal high vacuum electron beam welding machine of claim 1, wherein a right base frame is disposed at another end of the vacuum welding chamber, and the vacuum box is slidably disposed on the right base frame.

6. The stacked rotary partial-seal high-vacuum electron beam welding machine according to claim 1, characterized in that the stacked partial-high-vacuum rotary sealing device comprises a plurality of stacked flanges, an end rotary flange and an outer cylinder which are sequentially sleeved on a shaft to be welded along the axial direction of the shaft to be welded; vacuum gaskets are arranged among the plurality of laminated flanges and the end part rotating flange; the outer cylinder is fixedly arranged on the outer side wall of the vacuum welding chamber, an inner cylinder is sleeved on the inner side of the outer cylinder, and a bearing is arranged between the inner cylinder and the outer cylinder; the end part rotating flange is connected with the end part of the inner barrel, which is far away from the vacuum welding chamber, and a sealing structure is arranged between the end part rotating flange and the outer barrel.

7. The stacked rotary partial seal high vacuum electron beam welding machine of claim 6, wherein the stacked flange comprises an upper half flange and a lower half flange cut diametrically in two parts.

8. The stacked rotary partial seal high vacuum electron beam welding machine of claim 6, wherein the vacuum seal has an inner diameter that is smaller than a diameter of a shaft to be welded.

9. The stacked rotary partial seal high vacuum electron beam welding machine of claim 6, wherein an outer ring gland is disposed on the outer cylinder between the bearing and an outer sidewall of the vacuum welding chamber; and an inner ring gland is arranged on the inner cylinder and between the bearing and the outer side wall of the vacuum welding chamber.

10. The stacked rotary partial seal high vacuum electron beam welding machine according to claim 9, wherein two bearings are disposed between the inner cylinder and the outer cylinder, and an inner sleeve is disposed between the two bearings, the inner sleeve separating the two bearings;

the sealing structure comprises two lip-shaped sealing rings which are arranged in parallel, and a sealing spacer is arranged between the two lip-shaped sealing rings;

an oil duct is arranged between the two lip-shaped sealing rings, an oil port communicated with the oil duct is arranged on the end part rotating flange, and an oil plug is arranged on the oil port;

the end part of the end part rotating flange close to the vacuum welding chamber is provided with a sealing ring baffle ring;

an O-shaped sealing ring is arranged between the end part rotating flange and the end part of the inner cylinder;

and an O-shaped sealing ring is arranged between the outer cylinder and the outer side wall of the vacuum welding chamber.

Technical Field

The invention relates to the technical field of high-vacuum electron beam welding machines for overlong shaft parts, in particular to a laminated rotary local sealing high-vacuum electron beam welding machine.

Background

For high vacuum electron beam welding of long shaft or super long shaft parts, an elongated or super long high vacuum electron beam welding device is usually required to be designed for welding. In order to weld the long or ultra-long parts in vacuum, a vacuum welding chamber which is longer than the long or ultra-long parts needs to be manufactured, various tools and fixtures and moving mechanisms need to be arranged in the vacuum chamber, so that the vacuum welding chamber needs to be large, the large vacuum welding chamber needs to be provided with high-power vacuumizing equipment, the whole electron beam welding equipment is expensive in manufacturing cost, and the equipment is high in operating cost. It is almost impossible to manufacture such an ultra-long and large-sized electron beam apparatus when it is sometimes necessary to weld an ultra-long shaft part several tens of meters long.

In addition, the conventional axial local dynamic sealing mode is that a sealing element directly slides and rubs on a shaft of a part to be welded for sealing in the rotating process of the part to be welded, so that the shaft surface of the part to be welded is required to be smooth, the out-of-roundness is also required to be higher, otherwise, the sealing effect is poor, and the requirement of high vacuum sealing is not met.

Disclosure of Invention

In order to solve the technical problems, the invention provides a laminated rotary local sealing high-vacuum electron beam welding machine, which is used for placing a part of a long or ultra-long part to be welded into a vacuum chamber, so that a large-scale vacuum welding chamber is not required to be built.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides a laminated rotary local sealing high-vacuum electron beam welding machine, which comprises a vacuum welding chamber, an electron gun mechanism and a welding chamber vacuum system, wherein the vacuum welding chamber is provided with a vacuum cavity; the electron gun mechanism is arranged at the top of the vacuum welding chamber, and the welding chamber vacuum system is arranged on one side of the vacuum welding chamber;

a laminated local high-vacuum rotary sealing device is arranged on the side wall of one end of the vacuum welding chamber, and an external rotary three-jaw power head is arranged outside one end of the vacuum welding chamber;

the vacuum welding chamber is characterized in that the other end of the vacuum welding chamber is located, an inner rotating three-jaw power head is arranged in the vacuum welding chamber, an auxiliary support is arranged on the outer wall of the other end of the vacuum welding chamber, and a detachable vacuum box is arranged on the outer wall of the other end of the vacuum welding chamber.

Optionally, a movable door is arranged on the other side of the vacuum welding chamber.

Optionally, a left base frame is arranged outside one end of the vacuum welding chamber; the external rotation three-jaw power head is arranged on the left base frame in a sliding mode.

Optionally, a V-shaped auxiliary support and a feeding and discharging mechanism are arranged outside one end of the vacuum welding chamber, two rotating wheels are arranged at the top of the V-shaped auxiliary support, rollers are arranged at the bottom of the V-shaped auxiliary support, the long axis parts to be welded are placed on the two rotating wheels, and the feeding and discharging mechanism is used for driving the linear movement of the long axis parts to be welded.

Optionally, the other end of the vacuum welding chamber is provided with a right basic frame, and the vacuum box is arranged on the right basic frame in a sliding manner.

Optionally, the stacked local high-vacuum rotary sealing device includes a plurality of stacked flanges, an end rotary flange and an outer cylinder, which are sequentially sleeved on the shaft to be welded along the axial direction of the shaft to be welded; vacuum gaskets are arranged among the plurality of laminated flanges and the end part rotating flange; the outer cylinder is fixedly arranged on the outer side wall of the vacuum welding chamber, an inner cylinder is sleeved on the inner side of the outer cylinder, and a bearing is arranged between the inner cylinder and the outer cylinder; the end part rotating flange is connected with the end part of the inner barrel, which is far away from the vacuum welding chamber, and a sealing structure is arranged between the end part rotating flange and the outer barrel.

Optionally, the stacking flange comprises an upper half flange and a lower half flange cut diametrically in two parts.

Optionally, the inner diameter of the vacuum sealing gasket is smaller than the diameter of the shaft to be welded.

Optionally, an outer ring gland is arranged on the outer cylinder and between the bearing and the outer side wall of the vacuum welding chamber; and an inner ring gland is arranged on the inner cylinder and between the bearing and the outer side wall of the vacuum welding chamber.

Optionally, two bearings are arranged between the inner cylinder and the outer cylinder, and an inner sleeve is arranged between the two bearings and used for separating the two bearings;

optionally, the sealing structure includes two lip-shaped sealing rings arranged in parallel, and a sealing spacer is arranged between the two lip-shaped sealing rings;

optionally, an oil duct is arranged between the two lip-shaped sealing rings, an oil port communicated with the oil duct is arranged on the end rotary flange, and an oil plug is arranged on the oil port;

optionally, a sealing ring baffle ring is arranged at the end part of the end part rotating flange close to the vacuum welding chamber;

optionally, an O-ring seal is disposed between the end rotary flange and the end of the inner cylinder;

optionally, an O-ring is disposed between the outer cylinder and the outer sidewall of the vacuum welding chamber.

Compared with the prior art, the invention has the following technical effects:

the main structure of the laminated rotary local sealing high-vacuum electron beam welding machine comprises a vacuum welding chamber, an electron gun mechanism, a welding chamber vacuum system, a laminated local high-vacuum rotary sealing device and a vacuum box; the left welding shaft part is inserted from the left side of the vacuum welding chamber and is dynamically sealed through the stacked local high-vacuum rotary sealing device, so that the rotation of the left welding shaft part is guaranteed, the sealing requirement in the vacuum welding chamber can be guaranteed, the damage of a sealing structure to the surface of the part is avoided, and the machining precision requirement on the surface of the part is reduced; the right welding shaft part is inserted from the right side of the vacuum welding chamber and is sealed with the vacuum welding chamber through a vacuum box. Therefore, a large-scale vacuum welding chamber is not required to be built when the overlong shaft is welded.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of a stacked rotary partial seal high vacuum electron beam welding machine according to the present invention;

FIG. 2 is a schematic top view of the stacked rotary partial seal high vacuum electron beam welding machine of the present invention;

FIG. 3 is a left side view schematic diagram of the stacked rotary partial seal high vacuum electron beam welding machine of the present invention;

FIG. 4 is a schematic structural diagram of a stacked local high vacuum rotary sealing device in the stacked rotary local sealing high vacuum electron beam welding machine according to the present invention;

FIG. 5 is a schematic structural diagram of a lamination flange in a lamination type local high vacuum rotary sealing device in the lamination type rotary local sealing high vacuum electron beam welding machine of the present invention;

FIG. 6 is a schematic side view of a stacked flange in a stacked partial high vacuum rotary sealing device in the stacked rotary partial sealing high vacuum electron beam welding machine according to the present invention;

FIG. 7 is a schematic structural diagram of a feeding and discharging mechanism in the stacked rotary partial seal high vacuum electron beam welding machine according to the present invention;

FIG. 8 is a schematic structural view of a V-shaped auxiliary support in the stacked rotary partial seal high vacuum electron beam welding machine according to the present invention;

FIG. 9 is a schematic side view of an auxiliary support in the stacked rotary partial seal high vacuum electron beam welding machine of the present invention;

FIG. 10 is a schematic structural diagram of an auxiliary support in the stacked rotary partial seal high vacuum electron beam welding machine of the present invention.

Description of reference numerals: 1. v-shaped auxiliary support; 2. a feeding and discharging mechanism; 3. left weld shaft parts; 4. a left base frame; 5. externally rotating the three-jaw power head; 6. a middle base frame; 7. a laminated local high vacuum rotary sealing device; 8. an electron gun; 9. an electron gun vacuum system; 10. right weld shaft parts; 11. an internal rotation three-jaw power head; 12. a vacuum welding chamber; 13. auxiliary supporting; 14. a control cabinet; 15. a right base frame; 16. a vacuum box; 17. a water cooling unit; 18. a water gas system; 19. a welding chamber vacuum system; 20. an operation table; 21. a monitor; 22. a movable door; 23. a linear dynamic seal electric carriage; 24. a high voltage power supply; 25. a rack; 26. a linear guide rail;

71. stacking flanges; 72. a vacuum gasket; 73. an end rotating flange; 74. sealing the spacer; 75. an oil plug; 76. a sealing ring baffle ring; 77. an inner barrel; 78. an outer cylinder; 79. an inner sleeve; 710. an outer ring gland bush; 711. an inner ring gland bush; 712. a first socket head cap screw; 713. a second socket head cap screw; 714. a first O-ring seal; 715. a second O-ring seal; 716. a lip-shaped seal ring; 717. a third socket head cap screw; 718. a deep groove ball bearing; 719. a fourth socket head cap screw; 720. a fifth socket head cap screw; 721. a third O-shaped sealing ring; 722. a high vacuum welding chamber; 723. a shaft to be welded; 71-1, an upper half flange; 71-2, lower half flange;

1-1, a first lifting handle; 1-2, a first synchronous wheel; 1-3, a first synchronous belt; 1-4, a first supporting seat; 1-5, a first guide plate; 1-6, a first guide pillar; 1-7, a first guide sleeve; 1-8, a first lifting screw pair; 1-9, a first V-shaped roller frame; 1-10, a first walking roller frame;

2-1, a dragging mechanism; 2-2, a second lifting handle; 2-3, a second synchronizing wheel; 2-4, a second synchronous belt; 2-5, a coupler; 2-6, a second guide pillar; 2-7, a second guide sleeve; 2-8, a second V-shaped roller frame; 2-9, a second lifting screw pair; 2-10, a second guide plate; 2-11, a second supporting seat;

13-1, a hexagonal universal ball with a bolt; 13-2, a ball frame; 13-3, an outer support seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.