An electron beam processing stage suitable for curved surfaces

Abstract

The present invention relates to an electron beam processing platform suitable for curved surfaces, belonging to the field of electron beam processing technology. The platform comprises: a first motion mechanism, a second motion mechanism, a plurality of support columns, a printing screen mechanism, a locking mechanism, a platform cover, a striker, a hydraulic mechanism, a printing plate and a base, wherein the first motion mechanism is arranged on the base, the second motion mechanism is arranged on the first motion mechanism, the plurality of support columns are symmetrically arranged on the second motion mechanism, the printing screen mechanism is arranged on the top of the support columns, the platform cover is detachably arranged on the top of the printing screen mechanism, the locking mechanism is arranged inside the printing screen mechanism, the striker is installed on the base and is arranged between the first motion mechanism and the second motion mechanism, the hydraulic mechanism is arranged on the second motion mechanism, the position of the hydraulic mechanism on the second motion mechanism is below the bottom center of the printing screen mechanism, and the printing plate is slidably arranged on the second motion mechanism. The present invention is conducive to solving the problem that the size of the electron beam spot changes due to different curvatures of the workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of electron beam processing, and in particular to an electron beam processing platform suitable for curved surfaces. Background Art

[0002] Electron beam processing technologies can be categorized into electron beam welding, electron beam surface modification, and electron beam evaporation. Electron beam surface modification relies on an ultra-high-speed electron beam to bombard the surface of a metal material, achieving a continuous "solid-liquid-solid" transition on the metal sample surface in a short period of time, thereby improving surface finish or overall mechanical properties.

[0003] Usually, the surface area of ​​the workpiece being processed is much larger than the diameter of the electron beam spot, and it is necessary to move the axial stage on which the sample is placed to achieve continuous surface modification of the workpiece surface. In order to obtain a high-quality modified surface, the energy density of the electron beam spot acting on the workpiece surface must be kept constant. However, the distance between the electron gun cathode (electron beam emitting end) and the stage is constant. When processing complex surfaces, as the stage moves, the size of the electron beam spot will change in real time due to the different curvatures of the workpiece surface. Changes in the beam spot area will change the energy density of the electron beam, making the modification effect of the complex curved surface of the workpiece unstable. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an electron beam processing platform suitable for curved surfaces, so as to solve the problem that the size of the electron beam spot changes due to different curvatures of the workpiece.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A technical solution for an electron beam processing platform suitable for curved surfaces, comprising: a first motion mechanism, a second motion mechanism, a plurality of support columns, a printing screen mechanism, a locking mechanism, a platform cover, a striker, a hydraulic mechanism, a printing plate and a base, wherein the first motion mechanism is arranged on the base, the second motion mechanism is arranged on the first motion mechanism, a plurality of the support columns are symmetrically arranged on the second motion mechanism, the printing screen mechanism is arranged on the top of the support columns, the platform cover is detachably arranged on the top of the printing screen mechanism, the locking mechanism is arranged inside the printing screen mechanism, the striker is installed on the base and is arranged between the first motion mechanism and the second motion mechanism, the hydraulic mechanism is arranged on the second motion mechanism, and the position of the hydraulic mechanism on the second motion mechanism is below the center of the bottom end of the printing screen mechanism, and the printing plate is slidably arranged on the second motion mechanism.

[0006] The beneficial effects of the present invention are as follows: by placing the workpiece to be processed on the printing plate, and placing the printing plate under the printing screen mechanism, the printing screen mechanism and the locking mechanism are used to facilitate the replication and maintenance of the concave-convex shape of the top surface of the workpiece to be processed; then the workpiece to be processed is mounted on the carrier cover, and the movement of the first motion mechanism and the second motion mechanism facilitates the movement of the printing screen mechanism; the striker facilitates the up and down movement of the printing screen mechanism in a path that is compatible with the replicated concave-convex shape, thereby enabling the workpiece to be processed to move up and down along a path that is compatible with the replicated concave-convex shape. Finally, by ensuring that the beam spot area of ​​the electron beam does not change when it falls on the concave-convex surface of the workpiece, the energy density of the electron beam on the concave-convex surface of the workpiece does not change, thereby making the modification effect of the complex curved surface of the workpiece more stable.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the first motion mechanism includes: two first slide rails, a first slider, a second slider, a first motor, a first screw rod, a first connecting block, two first anti-collision blocks and two first support blocks. The two first slide rails are symmetrically installed on the base, the first slider is a block structure slidably installed on one first slide rail, and the second slider is an L-shaped block structure slidably installed on the other first slide rail. The first connecting block is a block structure threadedly sleeved on the first screw rod, the top surface of the first connecting block is connected to the bottom surface of the horizontal section of the second slider, the two first anti-collision blocks are adapted and installed on the two first support blocks in a one-to-one manner, the first support block is installed on the base, the two ends of the first screw rod are in one-to-one contact with and penetrate the two first anti-collision blocks, and the output shaft of the first motor is connected to one end of the first screw rod passing through the first anti-collision block through a coupling.

[0009] The beneficial effect of adopting the above further scheme is that the first motion mechanism is conducive to driving the printing screen mechanism that has replicated and maintained the concave and convex shape of the top surface of the workpiece to move in one direction, and cooperates with the impact rod to realize the up and down movement of the workpiece in this direction along a path that is compatible with the replicated concave and convex shape.

[0010] Furthermore, the second motion mechanism includes: two second slide rails, two third sliders, a second motor, a second screw rod, a second connecting block, two second anti-collision blocks and two second support blocks, the two second slide rails are respectively parallel and fixedly mounted on the top of the first slider and the second slider, the two third sliders are plate-shaped structures slidably arranged on the two second slide rails in a one-to-one manner, the support column is a rod-shaped structure fixedly mounted on the bottom end of the third slider, the second connecting block is a block structure threadedly sleeved on the second screw rod, the top surface of the second connecting block is connected to the bottom surface of one of the third sliders, the two second anti-collision blocks are adapted and mounted on the two second support blocks in a one-to-one manner, the two second support blocks are mounted on the top of the first slider and the second slider in a one-to-one manner, the two ends of the second screw rod are abutted and penetrated by the two second anti-collision blocks in a one-to-one manner, and the output shaft of the second motor is connected to one end of the second screw rod passing through the second anti-collision block through a coupling.

[0011] The beneficial effect of adopting the above-mentioned further scheme is that the second motion mechanism is conducive to driving the printing screen mechanism that has replicated and maintained the concave and convex shape of the top surface of the workpiece to move in another direction perpendicular to the movement direction of the first motion mechanism, and cooperates with the impact rod to realize the up and down movement of the workpiece in this direction along a path that is adapted to the replicated concave and convex shape.

[0012] Furthermore, the printing plate is slidably mounted on the third sliding block.

[0013] The beneficial effect of adopting the above further solution is that the printing template cooperates with the printing screen mechanism to facilitate the reproduction of the concave and convex shape of the top surface of the workpiece to be processed.

[0014] Furthermore, the striker is a rod-shaped structure with a spherical top end, and the striker is arranged between the two first slide rails and the two second slide rails.

[0015] The beneficial effect of adopting the above further solution is that the striker helps to move the printing screen mechanism up and down along a path that is compatible with the replicated concave-convex shape, thereby causing the workpiece to be processed to move up and down along a path that is compatible with the replicated concave-convex shape.

[0016] Furthermore, the hydraulic mechanism is installed on the third sliding block.

[0017] The beneficial effect of adopting the above further solution is that the hydraulic mechanism is conducive to steadily lifting the printing screen mechanism when the workpiece to be processed and the printing plate enter the bottom of the printing screen mechanism, avoiding the workpiece to be processed from touching the printing screen needle, thereby affecting the final printing effect.

[0018] Furthermore, the printing screen mechanism includes: an outer shell, a printing screen needle mounting block, two support plates, a plurality of printing screen needles and two connecting plates, the outer shell is an arched shell structure, the printing screen needle mounting block is an arched block structure that can be installed in the outer shell so as to be displaced forward and backward, the printing screen needle passes through the printing screen needle mounting block and the outer shell up and down, the two legs of the arched structure of the printing screen needle mounting block are installed one-to-one on the two support plates, the two support plates are installed one-to-one on the two connecting plates, the two legs of the arched shell structure of the outer shell are installed one-to-one on the two connecting plates, the locking mechanism passes through the printing screen needle mounting block and is installed on the support plate, the top of the support column abuts against the bottom surface of the connecting plate, and the top surface of the impact rod is located below the bottom surface of the connecting plate.

[0019] The beneficial effect of adopting the above-mentioned further scheme is that the printing screen mechanism is conducive to replicating the shape of the concave and convex curved surface of the top surface of the workpiece to be processed through the printing screen needle when the workpiece to be processed is placed under the printing screen mechanism, wherein the printing screen needle mounting block can be installed in the outer shell so as to be displaced forward and backward, which is conducive to locking the printing screen needle with the replicated shape under the action of the cross-cutting force; the top surface of the impact rod is located below the bottom surface of the connecting plate, which is conducive to preventing the impact rod from colliding with the connecting plate.

[0020] Furthermore, a locking hole and a plurality of printing screen needle holes are provided on the printing screen needle mounting block, the locking hole is a through hole provided at the front and rear ends of the arched structure support foot of the printing screen needle mounting block, and the printing screen needle hole is a through hole provided on the printing screen needle mounting block. The plurality of printing screen needles correspond to each other one by one and can be installed in the plurality of printing screen needle holes so as to be movable up and down.

[0021] The beneficial effects of adopting the above further solution are: the locking hole is conducive to installing a locking mechanism for locking and replicating the concave and convex curved surface shape of the top surface of the workpiece to be processed; the printing screen needle hole is conducive to providing a channel for the up and down displacement of the printing screen needle.

[0022] Furthermore, the locking mechanism includes: a locking rocker, a third screw rod, two third anti-collision blocks and three third support blocks, the two ends of the third screw rod are in one-to-one contact with and penetrated by the two third anti-collision blocks, the two third anti-collision blocks and the locking rocker are adapted to be installed on the three third support blocks in a one-to-one manner, the third support block is installed on the support plate, the output shaft of the locking rocker is connected to the third screw rod through a coupling and penetrates one end of the third anti-collision block, and the third screw rod is threadedly connected to the inner wall of the locking hole.

[0023] The beneficial effect of adopting the above further solution is that the locking mechanism is conducive to moving the printing screen needle mounting block through the third screw, thereby causing relative displacement between the printing screen needle mounting block and the housing, and locking the printing screen needle that has replicated the concave and convex surface shape of the workpiece to be processed.

[0024] Furthermore, the carrier cover includes: a carrier cover body, a first positioning block and a second positioning block. The carrier cover body is a shell structure with a horizontal top surface and adapted to the size of the outer shell. The carrier cover body opening is installed downward on the top surface of the outer shell. The first positioning block and the second positioning block are block structures arranged perpendicular to each other on the top surface of the carrier cover body.

[0025] The beneficial effect of adopting the above further solution is that the carrier cover is conducive to placing the workpiece to be processed in the position formed by the first positioning block and the second positioning block in the same orientation as when the mold is printed after the workpiece to be processed is completed and the printing screen needle is locked, thereby realizing subsequent electron beam processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The overall structure of the embodiment of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 2 The overall structure of the embodiment of the present invention is shown in FIG. Figure 2 ;

[0028] Figure 3 A schematic diagram of the connection between the second motor, the second screw rod, the second connecting block, the second anti-collision block and the second supporting block provided in an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the structure of a printing screen mechanism provided in an embodiment of the present invention;

[0030] Figure 5 A schematic diagram of the structure of a printing screen needle mounting block provided in an embodiment of the present invention;

[0031] Figure 6 A schematic diagram of the locking mechanism structure provided by an embodiment of the present invention;

[0032] Figure 7 A schematic diagram of the carrier cover structure provided in an embodiment of the present invention.

[0033] in, Figure 2 The double-headed arrows in the figure indicate the installation positions of the components.

[0034] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0035] 1. First motion mechanism; 2. Second motion mechanism; 3. Support column; 4. Screen mechanism; 5. Locking mechanism; 6. Platform cover; 7. Strike rod; 8. Hydraulic mechanism; 9. Print plate; 10. Base; 11. First slide rail; 12. First slider; 13. Second slider; 14. First motor; 15. First screw rod; 16. First connecting block; 17. First anti-collision block; 18. First support block; 21. Second slide rail; 22. Third slider; 23. Second motor; 24. Second screw rod; 25. Second connecting block; 26. Second anti-collision block; 27. Second supporting block; 41. Housing; 42. Screen needle mounting block; 43. Support plate; 44. Screen needle; 45. Connecting plate; 51. Locking rocker; 52. Third screw rod; 53. Third anti-collision block; 54. Third supporting block; 61. Carrier cover body; 62. First positioning block; 63. Second positioning block; 421. Locking hole; 422. Screen needle hole. DETAILED DESCRIPTION

[0036] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0037] like Figure 1 and Figure 2 As shown, an electron beam processing platform suitable for curved surfaces includes: a first motion mechanism 1, a second motion mechanism 2, multiple support columns 3, a printing screen mechanism 4, a locking mechanism 5, a platform cover 6, a striker 7, a hydraulic mechanism 8, a printing plate 9 and a base 10, wherein the first motion mechanism 1 is arranged on the base 10, the second motion mechanism 2 is arranged on the first motion mechanism 1, multiple support columns 3 are symmetrically arranged on the second motion mechanism 2, the printing screen mechanism 4 is arranged at the top of the support columns 3, the platform cover 6 is detachably arranged at the top of the printing screen mechanism 4, the locking mechanism 5 is arranged inside the printing screen mechanism 4, the striker 7 is installed on the base 10 and is arranged between the first motion mechanism 1 and the second motion mechanism 2, the hydraulic mechanism 8 is arranged on the second motion mechanism 2, and the position of the hydraulic mechanism 8 on the second motion mechanism 2 is below the bottom center of the printing screen mechanism 4, and the printing plate 9 is slidably arranged on the second motion mechanism 2.

[0038] Among them, it needs to be understood that: in the embodiment of the present invention, the distance between the electron beam emitting end and the carrier is constant, the top surface of the workpiece to be processed is the surface processed by the electron beam, the top surface is a surface with concave and convex curves, and the bottom surface of the workpiece to be processed is a plane, which is installed on the top surface of the carrier cover 6.

[0039] The beneficial effects of the present invention are as follows: by placing the workpiece to be processed on the printing plate, and placing the printing plate under the printing screen mechanism, the printing screen mechanism and the locking mechanism are used to facilitate the replication and maintenance of the concave-convex shape of the top surface of the workpiece to be processed; then the workpiece to be processed is mounted on the carrier cover, and the movement of the first motion mechanism and the second motion mechanism facilitates the movement of the printing screen mechanism; the striker facilitates the up and down movement of the printing screen mechanism in a path that is compatible with the replicated concave-convex shape, thereby enabling the workpiece to be processed to move up and down along a path that is compatible with the replicated concave-convex shape. Finally, by ensuring that the beam spot area of ​​the electron beam does not change when it falls on the concave-convex surface of the workpiece, the energy density of the electron beam on the concave-convex surface of the workpiece does not change, thereby making the modification effect of the complex curved surface of the workpiece more stable.

[0040] Preferably, Figure 1 and Figure 2 As shown, the first motion mechanism 1 includes: two first slide rails 11, a first slider 12, a second slider 13, a first motor 14, a first screw rod 15, a first connecting block 16, two first anti-collision blocks 17 and two first support blocks 18. The two first slide rails 11 are symmetrically mounted on the base 10. The first slider 12 is a block structure slidably mounted on one first slide rail 11, and the second slider 13 is an L-shaped block structure slidably mounted on the other first slide rail 11. The first connecting block 16 is a block structure threadedly sleeved on the first screw rod 15. The top surface of the first connecting block 16 is connected to the bottom surface of the horizontal section of the second slider 13. The two first anti-collision blocks 17 are adapted to be mounted on the two first support blocks 18 in a one-to-one manner. The first support block 18 is mounted on the base 10. The two ends of the first screw rod 15 are abutted and penetrated by the two first anti-collision blocks 17 in a one-to-one manner. The output shaft of the first motor 14 is connected to one end of the first screw rod 15 passing through the first anti-collision block 17 through a coupling.

[0041] Among them, it is necessary to understand that: Figure 2 As shown, in a preferred embodiment of the present invention, since the second slider 13 is an L-shaped block structure, the horizontal section of the second slider 13 is the portion connected to the first connecting block 16. The L-shaped block structure is beneficial for reducing production costs by reducing the volume of the second slider. However, in other preferred embodiments, the shape of the second slider 13 can be similar to the block structure of the first slider 12, as long as the bottom surface of the second slider 13 can be fixedly connected to the top surface of the first connecting block 16.

[0042] It should also be understood that: in a preferred embodiment of the present invention, since the second slide rail 21 is fixedly mounted on the top of the first slider 12 and the second slider 13, the first slider 12 and the second slider 13 will move synchronously under the power transmission of the first motor 14 and the first connecting block 16.

[0043] The beneficial effect of adopting the above preferred scheme is that the first motion mechanism is conducive to driving the printing screen mechanism that has replicated and maintained the concave and convex shape of the top surface of the workpiece to move in one direction, and cooperates with the impact rod to realize the up and down movement of the workpiece in this direction along a path that is compatible with the replicated concave and convex shape.

[0044] Preferably, Figures 1 to 3 As shown, the second motion mechanism 2 includes: two second slide rails 21, two third sliders 22, a second motor 23, a second screw rod 24, a second connecting block 25, two second anti-collision blocks 26 and two second support blocks 27. The two second slide rails 21 are respectively parallel and fixedly mounted on the top of the first slider 12 and the second slider 13. The two third sliders 22 are plate-like structures that are slidably arranged on the two second slide rails 21 in a one-to-one correspondence. The support column 3 is a rod-like structure that is fixedly mounted on the third slider 22 at its bottom end. The second connecting block 25 is a screw rod. The block structure is sleeved on the second screw rod 24, the top surface of the second connecting block 25 is connected to the bottom surface of one of the third sliders 22, the two second anti-collision blocks 26 are adapted and installed on the two second support blocks 27 in a one-to-one manner, and the two second support blocks 27 are installed on the top of the first slider 12 and the second slider 13 in a one-to-one manner. The two ends of the second screw rod 24 are abutted and penetrated by the two second anti-collision blocks 26 in a one-to-one manner, and the output shaft of the second motor 23 is connected to one end of the second screw rod 24 passing through the second anti-collision block 26 through a coupling.

[0045] It should be understood that the second slide rail 21 is also vertically connected to the first slider 12 and the second slider 13. In the preferred embodiment of the present invention, since the bottom end of the support column 3 is fixedly mounted on the third slider 22 and the top end is connected to the bottom surface of the connecting plate 45, the two third sliders 22 will move synchronously under the power transmission of the second motor 23 and the second connecting block 25.

[0046] The beneficial effect of adopting the above-mentioned preferred scheme is that the second motion mechanism is conducive to driving the printing screen mechanism that has replicated and maintained the concave and convex shape of the top surface of the workpiece to move in another direction perpendicular to the movement direction of the first motion mechanism, and cooperates with the impact rod to realize the up and down movement of the workpiece in this direction along a path that is adapted to the replicated concave and convex shape.

[0047] Preferably, Figure 1 and Figure 2 As shown, the printing plate 9 is slidably mounted on the third sliding block 22 .

[0048] It should be understood that in other preferred embodiments of the present invention, the platen 9 may be detachably mounted on the third slider 22. The position of the workpiece to be processed on the platen 9 must be directly below the position where the workpiece to be processed is placed on the stage cover 6, and the orientation of the workpiece to be processed on the platen 9 must also be exactly the same as that on the stage cover 6.

[0049] The beneficial effect of adopting the above preferred solution is that the printing template cooperates with the printing screen mechanism to facilitate the reproduction of the concave and convex shape of the top surface of the workpiece to be processed.

[0050] Preferably, Figure 1 and Figure 2 As shown, the striker 7 is a rod-shaped structure with a spherical top end, and the striker 7 is arranged between the two first slide rails 11 and the two second slide rails 21.

[0051] The beneficial effect of adopting the above preferred solution is that the striker helps to move the printing screen mechanism up and down along a path that is compatible with the replicated concave-convex shape, thereby causing the workpiece to be processed to move up and down along a path that is compatible with the replicated concave-convex shape.

[0052] Preferably, Figure 1 and Figure 2 As shown, the hydraulic mechanism 8 is mounted on the third slide 22 .

[0053] It should be understood that the hydraulic mechanism 8 can be fixedly installed or detachably installed on the third sliding block 22 .

[0054] The beneficial effect of adopting the above preferred solution is that the hydraulic mechanism is conducive to steadily lifting the printing screen mechanism when the workpiece to be processed and the printing plate enter the bottom of the printing screen mechanism, avoiding the workpiece to be processed from touching the printing screen needle, thereby affecting the final printing effect.

[0055] Preferably, Figure 4As shown, the printing screen mechanism 4 includes: a shell 41, a printing screen needle mounting block 42, two support plates 43, a plurality of printing screen needles 44 and two connecting plates 45, the shell 41 is an arched shell structure, the printing screen needle mounting block 42 is an arched block structure that can be installed in the shell 41 so as to be displaced forward and backward, the printing screen needle 44 passes through the printing screen needle mounting block 42 and the shell 41 up and down, the two legs of the arched structure of the printing screen needle mounting block 42 are installed on the two support plates 43 in a one-to-one manner, the two support plates 43 are installed on the two connecting plates 45 in a one-to-one manner, the two legs of the arched shell structure of the shell 41 are installed on the two connecting plates 45 in a one-to-one manner, the locking mechanism 5 passes through the printing screen needle mounting block 42 and is installed on the support plate 43, the top of the support column 3 abuts against the bottom surface of the connecting plate 45, and the top surface of the striker 7 is located below the bottom surface of the connecting plate 45.

[0056] It should be understood that, in order to improve the modification effect of the present invention, the screen printing needles 44 should be as thin as possible while meeting the process and strength requirements.

[0057] The beneficial effects of adopting the above-mentioned preferred scheme are: the printing screen mechanism is conducive to replicating the shape of the concave and convex curved surface of the top surface of the workpiece to be processed through the printing screen needle when the workpiece to be processed is placed under the printing screen mechanism, wherein the printing screen needle mounting block can be installed in the shell so as to be displaced forward and backward, which is conducive to locking the printing screen needle with the replicated shape under the action of the cross-cutting force; the top surface of the impact rod is located below the bottom surface of the connecting plate, which is conducive to preventing the impact rod from colliding with the connecting plate.

[0058] Preferably, Figure 5 As shown, the screen needle mounting block 42 is provided with a locking hole 421 and a plurality of screen needle holes 422. The locking hole 421 is a through hole provided at the front and rear ends of the arched structure support foot of the screen needle mounting block 42. The screen needle holes 422 are through holes provided on the screen needle mounting block 42. The plurality of screen needles 44 correspond to each other one by one and can be installed in the plurality of screen needle holes 422 so as to be movable up and down.

[0059] It should be understood that, in order to improve the modification effect of the present invention, the pinholes 422 of the printing screen should be as dense as possible while still meeting the process requirements.

[0060] The beneficial effects of adopting the above preferred solution are: the locking hole is conducive to installing a locking mechanism for locking and replicating the concave and convex curved surface shape of the top surface of the workpiece to be processed; the printing screen needle hole is conducive to providing a channel for the up and down displacement of the printing screen needle.

[0061] Preferably, Figure 6As shown, the locking mechanism 5 includes: a locking rocker 51, a third screw rod 52, two third anti-collision blocks 53 and three third support blocks 54, the two ends of the third screw rod 52 are in one-to-one contact with and penetrated by the two third anti-collision blocks 53, the two third anti-collision blocks 53 and the locking rocker 51 are adapted and installed on the three third support blocks 54 in a one-to-one manner, and the third support block 54 is installed on the support plate 43, the output shaft of the locking rocker 51 is connected to the third screw rod 52 through a coupling and penetrates one end of the third anti-collision block 53, and the third screw rod 52 is threadedly connected to the inner wall of the locking hole 421.

[0062] The beneficial effect of adopting the above preferred solution is that the locking mechanism is conducive to moving the printing screen needle mounting block through the third screw, thereby causing relative displacement between the printing screen needle mounting block and the housing, and locking the printing screen needle that has replicated the concave and convex surface shape of the workpiece to be processed.

[0063] Preferably, Figure 7 As shown, the carrier cover 6 includes: a carrier cover body 61, a first positioning block 62 and a second positioning block 63. The carrier cover body 61 is a shell structure with a horizontal top surface and a size that is adapted to the outer shell 41. The carrier cover body 61 is installed with its opening downward on the top surface of the outer shell 41. The first positioning block 62 and the second positioning block 63 are block structures arranged perpendicular to each other on the top surface of the carrier cover body 61.

[0064] The beneficial effect of adopting the above preferred scheme is that the carrier cover is conducive to placing the workpiece to be processed in the position formed by the first positioning block and the second positioning block in the same orientation as when the mold is printed after the workpiece to be processed is completed and the printing screen needle is locked, thereby realizing subsequent electron beam processing.

[0065] The working process of the present invention is described below by an embodiment:

[0066] like Figures 1 to 7 As shown, first, the printing screen mechanism 4 and the carrier cover 6 need to be lifted upward smoothly by the hydraulic mechanism 8, and the horizontal bottom surface of the workpiece to be processed is placed on the printing plate 9, so that the printing plate 9 enters the bottom of the printing screen mechanism 4 along the third slider 22. The specific entry position is directly below the workpiece to be processed positioned by the first positioning block 62 and the second positioning block 63.

[0067] Then the printing screen mechanism 4 and the carrier cover 6 are smoothly lowered downward by the hydraulic mechanism 8. During the process of the printing screen needle 44 falling back, since the printing screen needle 44 will touch the concave and convex surface of the top surface of the workpiece to be processed, the printing screen needle 44 will form a concave and convex shape that matches the concave and convex surface of the top surface of the workpiece to be processed. At this time, the mold is completed.

[0068] Secondly, by rotating the locking rocker 51, the screen needle mounting block 42 moves in the front-to-back direction and is displaced relative to the housing 41. Since the screen needle 44 passes through the housing 41 and the screen needle mounting block 42 from top to bottom, a shear force acting on the screen needle 44 is generated between the housing 41 and the screen needle mounting block 42 when they are displaced relative to each other, and the screen needle 44 is locked under the action of the shear force.

[0069] Then, the screen printing mechanism 4 and the stage cover 6 are lifted upwards smoothly by the hydraulic mechanism 8 again, and the printing plate 9 with the workpiece to be processed is taken out along the third slide 22. The hydraulic mechanism 8 is stopped, and the screen printing mechanism 4 is allowed to fall back smoothly onto the support column 3.

[0070] Finally, the workpiece to be processed is placed in the area defined by the first positioning block 62 and the second positioning block 63 in the same orientation as when it is placed on the printing plate 9, and the first motor 14 and the second motor 23 are started, so that the first motion mechanism 1 and the second motion mechanism 2 move the workpiece to be processed on the carrier cover 6 according to the set path. At this time, the workpiece to be processed will move up and down in a path that matches the printing mold, so the area of ​​the electron beam spot falling on the top surface of the workpiece to be processed will not change, that is, the energy density of the electron beam will not change, and the concave and convex curved surface of the top surface of the workpiece to be processed can be stably and continuously surface modified.

[0071] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0072] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0073] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0074] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0075] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0076] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An electron beam processing stage suitable for curved surfaces, characterized in that: include: A first motion mechanism (1), a second motion mechanism (2), a plurality of support columns (3), a printing screen mechanism (4), a locking mechanism (5), a platform cover (6), a striker (7), a hydraulic mechanism (8), a printing plate (9) and a base (10), wherein the first motion mechanism (1) is arranged on the base (10), the second motion mechanism (2) is arranged on the first motion mechanism (1), the plurality of support columns (3) are symmetrically arranged on the second motion mechanism (2), the printing screen mechanism (4) is arranged on the top of the support column (3), the platform cover ( 6) is detachably arranged at the top of the printing screen mechanism (4), the locking mechanism (5) is arranged inside the printing screen mechanism (4), the striker (7) is installed on the base (10) and is arranged between the first motion mechanism (1) and the second motion mechanism (2), the hydraulic mechanism (8) is arranged on the second motion mechanism (2), the position of the hydraulic mechanism (8) on the second motion mechanism (2) is located below the bottom center of the printing screen mechanism (4), and the printing template (9) is slidably arranged on the second motion mechanism (2) The printing screen mechanism (4) comprises: a shell (41), a printing screen needle mounting block (42), two support plates (43), a plurality of printing screen needles (44) and two connecting plates (45); the shell (41) is an arched shell structure; the printing screen needle mounting block (42) is an arched block structure that can be mounted in the shell (41) so as to be displaceable forward and backward; the printing screen needles (44) pass through the printing screen needle mounting block (42) and the shell (41) from top to bottom; and the two legs of the arched structure of the printing screen needle mounting block (42) correspond to each other. Mounted on the two support plates (43), the two support plates (43) are mounted on the two connecting plates (45) in a one-to-one correspondence, the two legs of the arched shell structure of the housing (41) are mounted on the two connecting plates (45) in a one-to-one correspondence, the locking mechanism (5) passes through the printing screen needle mounting block (42) and is mounted on the support plate (43), the top of the support column (3) abuts against the bottom surface of the connecting plate (45), and the top surface of the striker (7) is located below the bottom surface of the connecting plate (45); By placing the workpiece to be processed on the printing plate, and placing the printing plate under the printing screen mechanism, the printing screen mechanism and the locking mechanism are used to replicate and maintain the concave and convex shape of the top surface of the workpiece to be processed; then the workpiece to be processed is installed on the carrier cover, and the printing screen mechanism is driven to move by the movement of the first motion mechanism and the second motion mechanism; the impact rod moves the printing screen mechanism up and down in a path that matches the replicated concave and convex shape, so that the workpiece to be processed moves up and down along the path that matches the replicated concave and convex shape.

2. The electron beam processing stage suitable for curved surfaces according to claim 1, characterized in that: The first motion mechanism (1) comprises: two first slide rails (11), a first slider (12), a second slider (13), a first motor (14), a first screw rod (15), a first connecting block (16), two first anti-collision blocks (17) and two first supporting blocks (18), wherein the two first slide rails (11) are symmetrically mounted on the base (10), the first slider (12) is a block structure slidably mounted on one first slide rail (11), the second slider (13) is an L-shaped block structure slidably mounted on the other first slide rail (11), and the first connecting block (16) is a plurality of first support blocks (18). It is a block structure threadedly sleeved on the first screw rod (15), the top surface of the first connecting block (16) is connected to the bottom surface of the horizontal section of the second slider (13), the two first anti-collision blocks (17) are adapted and installed on the two first support blocks (18) in a one-to-one correspondence, the first support blocks (18) are installed on the base (10), the two ends of the first screw rod (15) are abutted and connected through the two first anti-collision blocks (17) in a one-to-one correspondence, and the output shaft of the first motor (14) is connected to one end of the first screw rod (15) passing through the first anti-collision block (17) through a coupling.

3. The electron beam processing stage suitable for curved surfaces according to claim 2, characterized in that: The second motion mechanism (2) comprises: two second slide rails (21), two third sliders (22), a second motor (23), a second screw rod (24), a second connecting block (25), two second anti-collision blocks (26) and two second support blocks (27). The two second slide rails (21) are respectively and parallelly fixedly mounted on the top of the first slider (12) and the second slider (13). The two third sliders (22) are plate-like structures that are slidably arranged on the two second slide rails (21) in a one-to-one correspondence. The support column (3) is a rod-like structure that is fixedly mounted on the third slider (22) at its bottom end. The second connecting block (25) is A block structure is threadedly sleeved on the second screw rod (24), the top surface of the second connecting block (25) is connected to the bottom surface of one of the third sliders (22), the two second anti-collision blocks (26) are adapted and installed on the two second support blocks (27) in a one-to-one correspondence, the two second support blocks (27) are installed in a one-to-one correspondence on the top of the first slider (12) and the second slider (13), the two ends of the second screw rod (24) are abutted and connected through the two second anti-collision blocks (26) in a one-to-one correspondence, and the output shaft of the second motor (23) is connected to one end of the second screw rod (24) passing through the second anti-collision block (26) through a coupling.

4. The electron beam processing stage suitable for curved surfaces according to claim 3, characterized in that: The printing plate (9) is slidably mounted on the third sliding block (22).

5. The electron beam processing stage suitable for curved surfaces according to claim 3, characterized in that: The striker (7) is a rod-shaped structure with a spherical top end, and the striker (7) is arranged between the two first slide rails (11) and the two second slide rails (21).

6. The electron beam processing stage suitable for curved surfaces according to claim 3, characterized in that: The hydraulic mechanism (8) is mounted on the third slider (22).

7. The electron beam processing stage suitable for curved surfaces according to claim 1, characterized in that: The screen needle mounting block (42) is provided with a locking hole (421) and a plurality of screen needle holes (422), wherein the locking hole (421) is a through hole provided at the front and rear ends of the arched structure support leg of the screen needle mounting block (42), and the screen needle hole (422) is a through hole provided on the screen needle mounting block (42), and the plurality of screen needles (44) correspond to each other one by one and are installed in the plurality of screen needle holes (422) so as to be movable up and down.

8. The electron beam processing stage suitable for curved surfaces according to claim 7, characterized in that: The locking mechanism (5) comprises: a locking rocker (51), a third screw rod (52), two third anti-collision blocks (53) and three third support blocks (54), the two ends of the third screw rod (52) are in contact with and connected through the two third anti-collision blocks (53) in a one-to-one correspondence, the two third anti-collision blocks (53) and the locking rocker (51) are adapted and installed on the three third support blocks (54) in a one-to-one correspondence, the third support blocks (54) are installed on the support plate (43), the output shaft of the locking rocker (51) is connected to one end of the third screw rod (52) through the third anti-collision block (53) through a coupling, and the third screw rod (52) is threadedly connected to the inner wall of the locking hole (421).

9. The electron beam processing stage suitable for curved surfaces according to claim 1, characterized in that: The carrier cover (6) includes: a carrier cover body (61), a first positioning block (62) and a second positioning block (63). The carrier cover body (61) is a shell structure with a horizontal top surface and a size that matches the shell (41). The carrier cover body (61) is installed on the top surface of the shell (41) with its opening facing downward. The first positioning block (62) and the second positioning block (63) are block structures that are arranged perpendicular to each other on the top surface of the carrier cover body (61).

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