A method for repairing a cover plate of a laser seal housing

Abstract

The application provides a laser sealing cover plate repair method of a shell, comprising the following steps: obtaining parameter information of the cover plate, determining a tool path and stress release groove information on the cover plate according to the parameter information; opening an anti-extrusion groove on the top surface of the cover plate and placing a buffer in the anti-extrusion groove, the anti-extrusion groove is close to the middle part of the cover plate relative to the tool path; opening a stress release groove on the cover plate and processing an opening groove on the top surface of the cover plate along the tool path; removing the cover plate through the opening groove; placing the shell under a microscope to remove burrs and performing spot coating protection film treatment on the area to be sealed, and laser sealing with a new cover plate, the technical scheme of the application has at least the following beneficial effects: opening the stress release groove and the anti-extrusion groove before opening the cover plate can effectively avoid the damage of the cover plate and the shell, avoid the cover plate or other objects from falling into the shell, thereby effectively protecting the components and improving the success rate of repair.

Description

Technical Field

[0001] This application relates to the field of laser sealing technology for electronic products, specifically to a method for repairing the cover plate of a laser-sealed housing. Background Technology

[0002] Currently, components containing bare chips are becoming increasingly common. To ensure the reliability of internal chips and components during long-term service, higher requirements are placed on the hermeticity of the casing. Laser welding utilizes the principle of laser energy radiation, transferring energy through the laser to the overlap between the cover plate and the casing, forming a molten pool at the overlap, which then cools to form a weld. Because the welding trajectory is guided by a programmable laser welding machine, laser sealing can achieve casings of various complex shapes. Furthermore, due to its energy transmission characteristics, it can be used for welding various metal materials, including Kovar alloys, aluminum-silicon alloys, and aluminum alloys. Its molten sealing properties enable high-hermeticity packaging, meeting the operating environments of various high-hermeticity products, making it one of the main packaging methods.

[0003] After packaging, most devices undergo a series of experiments. During these experiments, damage to internal electronic components or other factors may occur, requiring component replacement.

[0004] For example, patent application CN118218753A describes a laser sealing repair method. Although the prior art mentions a step-by-step cutting and opening process, the purely mechanical disassembly and repair method lacks a pre-treatment step during opening. This direct opening can easily lead to errors, damage to components and the casing, and ultimately result in the resealing process failing to meet airtightness requirements. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a method for repairing the cover plate of a laser-sealed shell, which solves the problem that direct opening of the cover in the prior art is prone to errors, damages components and the shell, and ultimately makes it difficult to meet the airtightness requirements when resealing.

[0006] To achieve the above and other related objectives, the present invention provides a method for repairing the cover plate of a laser-sealed housing, comprising:

[0007] Obtain the parameter information of the cover plate, and determine the tool path and stress relief groove information on the cover plate based on the parameter information;

[0008] An anti-squeezing groove is made on the top surface of the cover plate, and a buffer is placed in the anti-squeezing groove. The anti-squeezing groove is close to the middle of the cover plate relative to the cutting path.

[0009] A stress relief groove is made in the cover plate, and a cover opening groove is machined on the top surface of the cover plate along the tool path;

[0010] The cover plate is removed through the opening slot;

[0011] The shell was placed under a microscope to remove burrs, and a protective adhesive film was applied to the area to be sealed. The shell was then laser-sealed again with a new cover plate.

[0012] Optionally, the side wall of the opening groove near the middle of the cover plate has an inclined force-bearing surface, with the direction from the bottom of the opening groove toward the opening of the opening groove being a first direction, and the inclined force-bearing surface being inclined toward the edge of the cover plate in the first direction.

[0013] Optionally, processing the opening groove includes:

[0014] In the first step, the first process groove is machined along the tool path.

[0015] In the second process, a second process groove is formed by processing the first process groove to fuse with the first process groove. The depth of the second process groove is greater than that of the first process groove, and the inclined force-bearing surface is formed on the side of the second process groove near the middle of the cover plate.

[0016] The second process groove has a transverse direction that is perpendicular to both the tool path and the first direction. The bottom of the second process groove has a lowest point in the middle of the transverse direction, and the bottom of the second process groove gradually rises from the lowest point to both sides of the second process groove.

[0017] The third step involves processing material from the lowest point outwards along the transverse direction of the cover plate until the sidewall of the second process groove near the housing is removed.

[0018] Optionally, the second process tank has a first inclined bottom surface and a second inclined bottom surface. The first inclined surface is inclined from the lowest point toward the edge of the cover plate, and the second inclined bottom surface is inclined toward the middle of the cover plate. In the third process, material is removed from the cover plate from the connection between the first inclined bottom surface and the second inclined bottom surface until the first inclined bottom surface is processed into a horizontal surface.

[0019] Optionally, an inclined welding surface is provided on the inner side of the housing where the cover plate connects, and the welding surface is gradually inclined outward from the bottom to the top of the housing.

[0020] Optionally, before machining the opening groove on the top surface of the cover plate along the tool path, the process further includes:

[0021] The tool is run along the top of the cover plate without cutting, and the deviation between the tool path and the weld is checked to see if it meets the first preset deviation threshold. If the deviation between the tool path and the weld exceeds the first preset deviation threshold, the processing is stopped, the parameter information of the cover plate is reacquired, and the tool path is re-determined. If the deviation between the tool path and the weld meets the first preset deviation threshold, the detection groove is processed along the tool path.

[0022] Optionally, the deviation between the machining detection groove formed by shallow cutting and the weld is detected to meet a second preset deviation threshold. If the deviation between the machining detection groove and the weld meets the second preset deviation threshold, a cover opening groove is machined on the top surface of the cover plate along the tool path. If the deviation between the machining detection groove and the gap exceeds the second preset deviation threshold, the machining is stopped, the parameter information of the cover plate is reacquired, and the tool path is re-determined.

[0023] Optionally, a cover-opening component is used to remove the cover plate through the cover-opening groove. The cover-opening component includes a handle and a lifting part. The handle and the lifting part are fixedly connected along the length of the cover-opening component. The end of the lifting part away from the handle is provided with a cover-opening rake tooth for abutting against the inclined force-bearing surface. When the cover-opening component is inserted into the cover-opening groove, the cover-opening rake tooth is bent and protruded towards the center of the cover plate.

[0024] Optionally, the pull-out part is provided with a connection hole, and a grounding wire for dissipating static electricity is inserted into the connection hole.

[0025] Optionally, the pull-out part is provided with a mounting hole, and the pull-out part is detachably connected to the gasket through the mounting hole. The gasket gradually becomes thinner from the handle part to the pull-out part.

[0026] As described above, the beneficial effects of the technical solution in this invention include at least the following: by opening an anti-squeezing groove in the inner circle of the tool path, the cutting force and extrusion force are blocked, effectively protecting the surrounding weak areas; and by setting a buffer in the anti-squeezing groove, the adverse effects caused by milling force and vibration are suppressed.

[0027] By setting stress relief grooves at the corners to significantly reduce stress peaks, and by using concave arc speed reduction to suppress excessive surges in milling force at the rounded corners, the problem of a sharp decline in milling reliability at the rounded corners can be avoided.

[0028] Creating stress relief grooves and anti-squeezing grooves before opening the cover can effectively prevent damage to the cover and housing, and prevent the cover or other items from falling into the housing, thereby effectively protecting the components and improving the success rate of repairs. Attached Figure Description

[0029] Figure 1The diagram shows a flowchart of a cover plate repair method as an exemplary embodiment of the present invention.

[0030] Figure 2 The diagram shows a process flow diagram of processing the opening groove as an exemplary embodiment of the present invention;

[0031] Figure 3 The diagram shows a structural schematic of the housing and cover plate as an exemplary embodiment of the present invention.

[0032] Figure 4 This is shown as an exemplary embodiment of the present invention. Figure 3 -A enlarged diagram;

[0033] Figure 5 The diagram shows a cross-sectional view of the housing and cover plate as an exemplary embodiment of the present invention;

[0034] Figure 6 This is shown as an exemplary embodiment of the present invention. Figure 5 - Enlarged schematic diagram of the first machining process groove state at point B;

[0035] Figure 7 This is shown as an exemplary embodiment of the present invention. Figure 5 - Enlarged schematic diagram of the second process groove state at point B;

[0036] Figure 8 This is shown as an exemplary embodiment of the present invention. Figure 5 - Enlarged view of the completed state of the opening groove at point B;

[0037] Figure 9 This is shown as an exemplary embodiment of the present invention. Figure 5 - Enlarged schematic diagram of the machining and welding surface at point B;

[0038] Figure 10 This is a schematic diagram showing the opening member extending into the opening groove, which is an exemplary embodiment of the present invention.

[0039] Figure 11 The diagram shows a structural schematic of a cover opening component as an exemplary embodiment of the present invention.

[0040] Figure 12 The image shown is a rear view of the cover opening component, which is an exemplary embodiment of the present invention.

[0041] Part Number Explanation

[0042] 1. Cover plate; 101. Welding surface; 2. Anti-squeezing groove; 3. Buffer; 4. Stress relief groove; 5. Shell; 6. Opening groove; 601. Stress-bearing surface; 602. First process groove; 603. Second process groove; 7. Opening component; 71. Hand-held part; 72. Lifting part; 73. Opening rake teeth; 74. Connecting hole; 75. Mounting hole; 76. Gasket; 77. Unloading hole; 78. Fixing hole. Detailed Implementation

[0043] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0044] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0045] Numerous details are explored in the following description to provide a more thorough explanation of embodiments of the present disclosure. However, it will be apparent to those skilled in the art that embodiments of the present disclosure may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present disclosure.

[0046] Please see Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 10 This invention provides a method for repairing the cover plate of a laser-sealed housing, comprising:

[0047] Step 110: Obtain parameter information of cover plate 1 on the housing, and determine the tool path and stress relief groove 4 information on cover plate 1 based on the parameter information;

[0048] Step 120: An anti-squeezing groove 2 is made on the top surface of the cover plate 1, and a buffer 3 is placed in the anti-squeezing groove 2. The anti-squeezing groove 2 is close to the middle of the cover plate 1 relative to the cutting path.

[0049] Step 130: A stress relief groove 4 is formed on the cover plate 1, and a cover groove 6 is machined on the top surface of the cover plate 1 along the cutting path.

[0050] Step 140: Remove the cover plate 1 through the opening slot 6;

[0051] Step 150: Place the shell 5 under a microscope to remove burrs;

[0052] Step 160: Apply protective adhesive film to the area to be sealed.

[0053] Step 170: Laser seal again with the new cover plate 1.

[0054] In one embodiment of this application, the specific method for repairing the cover plate 1 includes the following: the programmer imports the three-dimensional model corresponding to the laser-sealed shell into the programming software, aligns the three-dimensional model and considers the operability and accuracy of clamping and edge finding to establish a program coordinate system, uses the sealing trajectory as the cutting path to compile a machining program, prohibits the spraying of coolant throughout the program, processes the compiled program into code and transmits it to the machine tool's program memory, and informs the operator of the coordinate system and the program number corresponding to the code, obtains the parameter information of the cover plate 1, the parameter information includes the information of the four corners and the five points in the middle of the shell 5, the Z-direction (height direction) error of the five points is controlled within 0.03mm, if the 0.03mm error cannot be met, a thin sheet is used to raise it (or other auxiliary support with a water surface is used for adjustment), and the X-direction, Y-direction and Z-direction coordinates of the five points are respectively input into the machine tool to establish a coordinate system, thereby determining the tool path and stress relief groove 4 information;

[0055] Offset towards the center of the cover plate 1 along the weld seam between the shell 5 and the cover plate 1, and mill a rectangular trench with an end mill. Then, use a T-type ball end mill to expand the lower half of the rectangular section into an arc section to form an anti-squeeze groove 2. This prevents the cover plate 1 from being squeezed by the shell 5 during the opening process. The cutting milling force, vibration force, and lifting force (the lifting force caused by the tool on the diagonal direction of the cover plate during milling) have an adverse effect on the weak part of the cover plate. A buffer 3 is inserted into the anti-squeeze groove 2. In this embodiment, the buffer 3 is made of rubber, and when the anti-squeeze groove 2 is opened, compressed air is automatically sprayed to blow away the chips and remove the heat.

[0056] Stress relief groove 4 is opened at the corner of cover plate 1. Its structure is as follows: the outer contour is a small circle and the depth increases along the curvature. By pre-milling stress grooves, the stress of the rounded corner is released in advance, and the stress peak of each rounded corner position where the stress was originally concentrated will be greatly reduced.

[0057] The cover slot 6 is made along the tool path. During milling, a roughing method with high speed, fast feed and medium depth of cut is used, and a semi-finishing allowance is reserved on the side of the housing 5. The cutting is carried out to about two-thirds of the thickness of the cover plate 1. Compressed air is automatically sprayed to blow away the chips and remove the heat. Then, the end mill is used to carry out a semi-finishing method with high speed, medium feed and small depth of cut. Compressed air is not sprayed during the cutting process. The cutting is carried out to about 95% of the thickness of the cover plate 1, and the cover plate 1 is pulled out through the cover slot 6.

[0058] Finally, the shell 5 is placed under a microscope to remove burrs. The opened shell 5 is placed on an anti-static workbench and burrs are removed under a microscope. After completion, glue is applied to the upper surface and side areas of the shell 5 to be sealed. This can prevent oxidation of the sealing surface and avoid bumps and contamination during subsequent circuit repair. The protective film can be cured at room temperature and is easy to remove cleanly. The shell 5 that has been opened and processed is wrapped in capacitor paper and placed in an anti-static packaging bag. The packaging bag is made of multi-layer composite materials and has the dual function of not generating static electricity itself and shielding external static electricity. After delivery to the user, repair and debugging are carried out. This process may take several days to complete. After the repair and debugging are qualified, the laser sealing process is started. At this time, the protective film is removed and the new cover plate 1 is laser sealed again.

[0059] The opening groove 6 has an inclined force-bearing surface 601 on the side wall near the middle of the cover plate 1. The direction from the bottom of the opening groove 6 toward the opening of the opening groove 6 is the first direction (from bottom to top). The inclined force-bearing surface 601 is inclined toward the edge of the cover plate 1 in the first direction.

[0060] In one embodiment of this application, specifically, multiple fixing holes are provided on the outer shell, and the shell is fixed by screws passing through the fixing holes before opening the cover.

[0061] In one embodiment of this application, specifically, during the process of opening the cover groove 6, an inclined force-bearing surface 601 is provided on the side wall near the middle of the cover plate 1. The force-bearing surface 601 gradually tilts from bottom to top toward the housing 5, so that when the cover groove 6 is opened, the cover opening member 7 abuts against the force-bearing surface 601, thus preventing the cover opening member 7 from sliding between the cover opening member 7 and the cover plate 1 when the cover is opened by force after it is inserted into the cover groove 6 of the cover plate 1, which would cause damage to the housing 5 or the cover plate 1.

[0062] Please see Figure 2 The processing of the opening groove 6 includes:

[0063] Step 210, please refer to Figure 5 and Figure 6 In the first step, the first process groove 602 is machined along the tool path.

[0064] Step 220, please refer toFigure 7 In the second step, a second process groove 603 is formed by machining the first process groove 602, which is fused with the first process groove 602. The depth of the second process groove 603 is greater than that of the first process groove 602.

[0065] Step 230, please refer to Figure 7 The inclined force-bearing surface 601 is formed on the side of the second process groove 603 near the middle of the cover plate 1 (or the inclined force-bearing surface 601 is opened first, and then the second process groove 603 is opened; in this embodiment, no limitation is made).

[0066] The second process groove 603 has a transverse direction that is perpendicular to the tool path and the first direction respectively. The bottom of the second process groove 603 has a lowest point in the middle of the transverse direction, and the bottom of the second process groove 603 gradually rises from the lowest point to both sides of the second process groove 603.

[0067] Step 240, please refer to Figure 8 The third process involves removing material from the lowest point outward along the transverse direction of the cover plate 1 until the side wall of the second process groove 603 near the housing 5 is removed.

[0068] In one embodiment of this application, the processing of the cover groove 6 specifically includes three steps. The first step is to cut and process the first process groove 602 along the weld (tool path) until the first process groove 602 is processed to two-thirds of the thickness of the cover plate 1. The second step is to process the second process groove 603 on the basis of the first process groove 602. The second process groove 603 is processed on the bottom surface of the first process groove 602. In this embodiment, the second process groove 603 is a V-shaped groove with an obtuse angle in its cross-section. The tool does not touch the housing 5 throughout the process, and the depth of the lowest point of the second process groove 603 is 95% of the thickness of the cover plate 1. The third step is to process the material laterally along the bottom of the second process groove 603 toward the housing 5 until the sidewalls of the second process groove 603 and the first process groove 602 near the housing 5 are removed.

[0069] The second process groove 603 has a first inclined bottom surface and a second inclined bottom surface. The first inclined surface is inclined from the lowest point toward the edge of the cover plate 1, and the second inclined bottom surface is inclined toward the middle of the cover plate 1. In the third process, material is removed from the cover body from the connection between the first inclined bottom surface and the second inclined bottom surface until the first inclined bottom surface is processed into a horizontal surface, while the second inclined bottom surface remains an inclined surface, providing sufficient support surface for the cover opening component 7.

[0070] In one embodiment of this application, specifically, before machining the cover groove 6 along the tool path on the top surface of the cover plate 1, the process further includes:

[0071] The tool is run along the top of the cover plate 1 without cutting, and the deviation between the tool path and the weld is checked to see if it meets the first preset deviation threshold. If the deviation between the tool path and the weld exceeds the first preset deviation threshold, the processing is stopped, the parameter information of the cover plate 1 is reacquired, and the tool path is redefined until the deviation is less than the first preset deviation threshold. If the deviation between the tool path and the weld meets the first preset deviation threshold, the detection groove is processed along the tool path. The error prevention method of no-load cutting and trial cutting can effectively avoid various problems caused by programmers and operators' lack of consideration and communication under time pressure.

[0072] The deviation between the machining detection groove formed by shallow cutting and the weld is detected to meet the second preset deviation threshold. If the deviation between the machining detection groove and the weld meets the second preset deviation threshold, the cover opening groove 6 is machined on the top surface of the cover plate 1 along the tool path. If the deviation between the machining detection groove and the gap exceeds the second preset deviation threshold, the machining is stopped, the parameter information of the cover plate 1 is re-acquired, and the tool path is re-determined until the deviation between the tool path and the weld is less than the second preset deviation threshold.

[0073] Please see Figure 9 In one embodiment of this application, specifically, an inclined welding surface 101 is provided on the inner side of the shell 5 where the cover plate 1 is connected. The welding surface 101 is gradually inclined outward from the shell 5 in the direction from bottom to top. During welding, since the welding surface 101 is gradually inclined outward from the shell 5 in the direction from bottom to top, the liquid in the molten pool moves automatically towards the small gap due to capillary action, preferentially filling the small gap at the bottom, and then gradually advancing towards the large gap at the top. The upward movement of the solder also drives the bubbles to move upward. The structure of the curved cross section that is narrow at the bottom and wide at the top makes the curvature of the small end of the bubble large, and the additional pressure is also greater, which is conducive to obtaining a greater initial acceleration. According to the principle of the brachistochrone curve, for the same length of motion path, the curve with a faster initial velocity will take less time, which is conducive to the bubble being discharged in a shorter time. At the same time, the upper opening is slightly enlarged to delay the solidification of the molten pool surface, giving more time for the bubble to be discharged.

[0074] In one embodiment of this application, specifically, when opening the cover groove 6, when cutting the edge of the cover plate 1, the cutting speed is a first speed along the direction of the currently cutting edge. When cutting to the corner, the cutting speed is reduced until the turn is completed, which can make the machine tool lead screw reversal smoother and ensure the reliability of internal fillet milling.

[0075] Please see Figure 11 and Figure 12In one embodiment of this application, specifically, the cover plate 1 is removed by using the cover opening component 7 through the cover opening groove 6. The cover opening component 7 is a long strip structure, which includes a handle part 71 and a lifting part 72. During use, the handle part 71 is located above the lifting part 72. The handle part 71 and the lifting part 72 are fixedly connected along the length direction of the cover opening component 7. The end of the lifting part 72 away from the handle part 71 is provided with a cover opening rake tooth 73 for abutting against the inclined force-bearing surface 601. When the cover opening component 7 extends into the cover opening groove 6, the cover opening rake tooth 73 is bent and protruded towards the middle of the cover plate 1, so that the cover opening rake tooth 73 can be engaged into the cover opening groove 6 of the cover plate 1, so that it has sufficient opening force.

[0076] In one embodiment of this application, specifically, three opening rake teeth 73 are provided. The opening rake teeth 73 are arranged sequentially along the width direction of the lifting part 72, and the curvature of the middle opening rake tooth 73 toward the middle of the cover plate 1 is greater than the inclination of the opening rake teeth 73 at both ends, so that the middle rake tooth can bite into the reverse slope of the cover plate first, and the two side rake teeth bite into it later. This can avoid the lifting device from flipping over due to uneven manual force during the opening process.

[0077] In one embodiment of this application, specifically, the width of the upper and lower ends of the handheld portion 71 is greater than the width of the middle portion, and the width of the upper and lower ends of the handheld portion 71 gradually decreases towards the middle portion, making it easy to hold.

[0078] In one embodiment of this application, the pull-out part 72 is provided with a connection hole 74, and a grounding wire for dissipating static electricity is passed through the connection hole 74, which can effectively protect static electricity sensitive devices.

[0079] In one embodiment of this application, specifically, the pull-out part 72 is provided with a mounting hole 75, and the pull-out part 72 is detachably connected to the gasket 76 through the mounting hole 75. The gasket 76 gradually thins from the hand-held part 71 to the pull-out part 72. The gasket 76 is made of soft metal material, which can effectively protect the sealing edge of the shell 5 from being crushed, and has a wedge-tightening effect during the opening process.

[0080] In one embodiment of this application, specifically, the pad 76 is provided with a corrugated anti-slip texture on the surface near the housing 5, so that the back side will not slip during the opening process and can provide sufficient load-bearing capacity.

[0081] In one embodiment of this application, the gasket 76 is wedge-shaped, and in use, the thickness of the gasket 76 gradually decreases from top to bottom.

[0082] In one embodiment of this application, specifically, an unloading hole 77 is provided in the lifting part 72, which absorbs the lifting force and generates a certain elastic deformation during the lifting and opening process, thereby preventing the rake teeth from being impacted.

[0083] In one embodiment of this application, specifically, the handheld part 71 is provided with a fixing hole 78 for placing the cover opening part 7.

[0084] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A method for repairing a cover plate of a laser-sealed housing, characterized in that, include: Obtain the parameter information of the cover plate, and determine the tool path and stress relief groove information on the cover plate based on the parameter information; An anti-squeezing groove is made on the top surface of the cover plate, and a buffer is placed in the anti-squeezing groove. The anti-squeezing groove is close to the middle of the cover plate relative to the cutting path. A stress relief groove is made in the cover plate, and a cover opening groove is machined on the top surface of the cover plate along the tool path; The cover plate is removed through the opening slot; The shell was placed under a microscope to remove burrs, and a protective film was applied to the area to be sealed. The area was then laser-sealed again with a new cover plate. The anti-crushing groove on the top surface of the cover plate includes: A rectangular trench is opened inside the weld between the shell and the cover plate; The bottom of the trench is milled to enlarge the lower half of the trench's cross-section into a circular arc section, thereby cutting off the influence of milling force, vibration force, and lifting force on the weak points of the cover plate.

2. The method for repairing a cover plate of a laser-sealed housing according to claim 1, characterized in that: The side wall of the opening groove near the middle of the cover plate has an inclined force-bearing surface. The direction from the bottom of the opening groove toward the opening of the opening groove is the first direction, and the inclined force-bearing surface is inclined toward the edge of the cover plate in the first direction.

3. The method for repairing the cover plate of a laser-sealed housing according to claim 2, characterized in that: Processing the opening groove includes: In the first step, the first process groove is machined along the tool path. In the second process, a second process groove is formed by processing the first process groove to fuse with the first process groove. The depth of the second process groove is greater than that of the first process groove, and the inclined force-bearing surface is formed on the side of the second process groove near the middle of the cover plate. The second process groove has a transverse direction that is perpendicular to both the tool path and the first direction. The bottom of the second process groove has a lowest point in the middle of the transverse direction, and the bottom of the second process groove gradually rises from the lowest point to both sides of the second process groove. The third step involves processing material from the lowest point outwards along the transverse direction of the cover plate until the sidewall of the second process groove near the housing is removed.

4. The method for repairing a cover plate of a laser-sealed housing according to claim 3, characterized in that: The second process tank has a first inclined bottom surface and a second inclined bottom surface. The first inclined surface is inclined from the lowest point toward the edge of the cover plate, and the second inclined bottom surface is inclined toward the middle of the cover plate. In the third process, material is removed from the cover plate from the connection between the first inclined bottom surface and the second inclined bottom surface until the first inclined bottom surface is processed into a horizontal surface.

5. A method for repairing a cover plate of a laser-sealed housing according to any one of claims 1-4, characterized in that: An inclined welding surface is provided on the inner side where the housing connects to the cover plate, and the welding surface is gradually inclined outward from the bottom to the top of the housing.

6. A method for repairing the cover plate of a laser-sealed housing according to any one of claims 1-4, characterized in that, Before machining the cover groove on the top surface of the cover plate along the tool path, the process also includes: The tool is run along the top of the cover plate without cutting, and the deviation between the tool path and the weld is checked to see if it meets the first preset deviation threshold. If the deviation between the tool path and the weld exceeds the first preset deviation threshold, the processing is stopped, the parameter information of the cover plate is reacquired, and the tool path is re-determined. If the deviation between the tool path and the weld meets the first preset deviation threshold, the detection groove is processed along the tool path.

7. The method for repairing a cover plate of a laser-sealed housing according to claim 6, characterized in that: The deviation between the machining detection groove formed by shallow cutting and the weld is detected to meet the second preset deviation threshold. If the deviation between the machining detection groove and the weld meets the second preset deviation threshold, the cover opening groove is machined on the top surface of the cover plate along the tool path. If the deviation between the machining detection groove and the weld exceeds the second preset deviation threshold, the machining is stopped, the parameter information of the cover plate is reacquired, and the tool path is re-determined.

8. A method for repairing the cover plate of a laser-sealed housing according to any one of claims 1-4, characterized in that: The cover plate is removed by using a cover opening component through the cover opening groove. The cover opening component includes a handle and a lifting part. The handle and the lifting part are fixedly connected along the length of the cover opening component. The end of the lifting part away from the handle is provided with a cover opening rake tooth for abutting against the inclined force surface. When the cover opening component is inserted into the cover opening groove, the cover opening rake tooth is bent and protruded towards the center of the cover plate.

9. The method for repairing a cover plate of a laser-sealed housing according to claim 8, characterized in that: The pull-out part is provided with a connection hole, and a grounding wire for dissipating static electricity is inserted through the connection hole.

10. The method for repairing a cover plate of a laser-sealed housing according to claim 8, characterized in that: The pull-out part is provided with a mounting hole, and the pull-out part is detachably connected to the gasket through the mounting hole. The gasket gradually becomes thinner from the handle part to the pull-out part.

Images