A sealing device for multi-layer microwave components

Abstract

The present invention relates to the field of welding sealing equipment, and discloses a welding sealing device for multi-layer microwave components, including: a welding sealing frame; a positioning bracket arranged on the welding sealing frame, used for placing and positioning a base; a positioning frame arranged on the welding sealing frame, used for placing a cover plate; a first positioning part arranged on the left and right sides of the positioning frame, and a second positioning part arranged on the front and back sides of the positioning frame; in the process of the connection frame moving down, firstly, the first suction cup adsorbs the center position of the cover plate, and the avoidance component makes the first positioning part and the second positioning part leave the cover plate, thereby canceling the mechanical clamping and positioning of the cover plate, and then, the cover plate is adsorbed and fixed by the second suction cup of the adsorption component, thereby avoiding the stress concentration problem that may be introduced by mechanical clamping. After the stress is released, the cover plate is more stably aligned with the base, which significantly reduces the risk of deformation that may occur during the welding process, thereby solving the technical problem of stress concentration at the weld, and improving the uniformity of the weld and the long-term reliability of the package.

Description

Technical Field

[0001] The invention relates to the technical field of sealing and soldering equipment, and in particular to a sealing and soldering device for a multi-layer microwave component. Background Art

[0002] In modern microwave communications and electronic devices, the packaging technology of microwave components is crucial. These components usually include sensitive electronic components, such as RF modules, filters and amplifiers, which are extremely sensitive to environmental humidity, temperature changes and electromagnetic interference. Sealing is a commonly used packaging method that protects the internal electronic components from the external environment by sealing the base and the cover together. Especially in the packaging of multi-layer microwave components, the quality of the welded joints is directly related to the performance and service life of the product. In the sealing application, the base and the cover are two key components of the packaging structure, especially when it comes to electronic components, microwave components and other high-precision equipment. The base is the bottom part of the packaging structure, which carries electronic components, microwave components or other electrical components. The base usually has strong structural support capabilities and can also provide good thermal management functions. The cover is a component used to close the top of the base to form a sealed cavity to protect the internal electronic components from the external environment. The combination of the cover and the base is achieved through a sealing process to ensure airtightness and electromagnetic shielding.

[0003] In the existing welding process, the cover plate and the base are positioned by a clamp. However, the clamp may introduce stress when clamping the cover plate, causing the cover plate to deform slightly and accumulate elastic force. If welding is performed directly, this inherent elastic force will continue to act on the weld, which may cause stress concentration at the weld, thereby affecting the long-term sealing of the welding. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a sealing device for a multi-layer microwave assembly, aiming to alleviate the above problems at least to a certain extent.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A sealing device for a multi-layer microwave assembly, comprising:

[0007] Sealing welding frame;

[0008] A positioning bracket provided on the sealing and welding frame, used for placing and positioning the base;

[0009] A positioning frame provided on the sealing and welding frame, used for placing a cover plate;

[0010] First positioning parts are arranged on the left and right sides of the positioning frame, and second positioning parts are arranged on the front and back sides of the positioning frame for preliminarily positioning the cover plate to correspond to the position of the base;

[0011] A connecting frame body is arranged on the top of the positioning frame body, and a box body is arranged on the connecting frame body;

[0012] A first suction cup is arranged at the bottom of the box body, and a plurality of second suction cups are also arranged at the bottom of the box body, wherein the height of the first suction cup is lower than that of the second suction cup;

[0013] A laser welding head provided between the box body and the connecting frame, wherein the laser welding head can slide along the side wall of the box body;

[0014] A moving component provided between the sealing frame and the connecting frame, used to move the connecting frame up and down, and when the connecting frame moves downward to a preset position, it can drive the positioning frame to move downward;

[0015] An adsorption component provided between the connecting frame and the first and second suction cups, used to allow the first suction cup to adsorb the cover plate when the connecting frame moves downward to a first preset position, and to allow the second suction cup to adsorb the cover plate when the connecting frame moves to a second preset position;

[0016] The avoidance component disposed between the connecting frame and the positioning frame is used to move the positions of the first positioning portion and the second positioning portion when the connecting frame moves downward to a second preset position.

[0017] Preferably, the first positioning portion includes:

[0018] A first opening is provided on the left and right sides of the positioning frame, a first connecting tube is slidably connected in the first opening, and a first connecting rod is slidably connected in the first connecting tube;

[0019] The second positioning portion includes:

[0020] A second opening is provided at both the front and rear sides of the positioning frame, a second connecting tube is slidably connected in the second opening, and a second connecting rod is slidably connected in the second connecting tube;

[0021] Among them, a first spring is connected between the first connecting tube and the positioning frame, and between the second connecting tube and the positioning frame, a second spring is connected between the first connecting rod and the first connecting tube, and between the second connecting rod and the second connecting tube, and one end of the first connecting rod and the second connecting rod is provided with a positioning block, and the top of the positioning block is provided with a wedge-shaped opening.

[0022] Preferably, the avoidance component includes a first shaft rotatably connected to the corner of the positioning frame, both ends of the first shaft are connected to the second shaft through universal joints, the second shaft is connected to a gear, and the first connecting tube and the second connecting tube are connected to a rack meshing with the gear.

[0023] Preferably, two sides of the connecting frame are respectively connected with connecting vertical bars, the bottom of the connecting vertical bars is rotatably connected with a connecting rod, and the bottom of the connecting rod is rotatably connected to the first connecting tube.

[0024] Preferably, a first rod is connected to the welding frame, connecting grooves are respectively provided on both sides of the first rod, a second rod connected to the positioning frame is slidably connected in the connecting groove, grooves are respectively provided on both sides of the second rod, a push rod is slidably connected in the groove, a third spring is connected between the push rod and the groove, a plurality of top grooves adapted to the push rod are provided on the side wall of the connecting groove, one end of the push rod is semi-spherical, and the top groove is a semi-spherical groove adapted to the semi-spherical end of the push rod.

[0025] Preferably, a damping groove is provided on one side of the positioning block.

[0026] Preferably, the adsorption component includes a first straw connected to the bottom of the box body, the first suction cup is slidably connected to the bottom of the first straw, a first cavity is opened in the first straw, a first connecting shaft is slidably connected in the first cavity, a first piston adapted to the first cavity is connected to the bottom of the first connecting shaft, and a first screw rod threadedly connected to the first connecting shaft is rotatably connected to the first straw.

[0027] Preferably, a plurality of second straws are connected to the bottom of the box body, the second suction cup is slidably connected to the bottom of the second straw, a second cavity is defined in the second straw, a second connecting shaft is slidably connected in the second cavity, a second piston matching the second cavity is connected to the bottom of the second connecting shaft, and a connecting strip is connected between the second connecting shaft and the first connecting shaft.

[0028] Preferably, a top touch rod is slidably connected to the connecting frame, a fourth spring is connected between the top touch rod and the connecting frame, a traction rope is connected to the top of the top touch rod, one end of the traction rope extends into the box body and is wound around the first screw rod, and a fifth spring is connected between the first screw rod and the box body.

[0029] Preferably, the moving component includes two second screw rods rotatably connected to the sealing and welding frame, the top of the connecting frame is connected to a top frame, the connecting frame is connected to the bottom of the top frame, the top frame is connected to a connecting plate threadedly connected to the second screw rod, a first chain transmission mechanism is connected between the two second screw rods, the sealing and welding frame is connected to a first motor, a second chain transmission mechanism is connected between the driving shaft of the first motor and one of the second screw rods, a laser welding device is provided in the top frame, a cable is connected between the laser welding device and the laser welding head, a slide rail is connected between the box body and the connecting frame, a third screw rod is rotatably connected to the slide rail, the laser welding head is slidably connected to the slide rail and threadedly connected to the third screw rod, a second motor is connected to the connecting frame, and the driving shaft of the second motor is connected to the third screw rod.

[0030] In summary, the present invention mainly has the following beneficial effects:

[0031] 1. Improve packaging accuracy and quality:

[0032] The reasonable layout of the positioning bracket, the positioning frame and the connecting frame ensures the accurate alignment of the cover and the base during the welding process. The first positioning part and the second positioning part provide preliminary support and positioning for the cover before welding, thus avoiding the misalignment problem between the cover and the base before welding and improving the accuracy and quality of the package.

[0033] 2. Reduce stress concentration and deformation risks:

[0034] During the downward movement of the connection frame, the first suction cup first adsorbs the center of the cover plate, and the avoidance component causes the first and second positioning parts to leave the cover plate, eliminating the mechanical clamping and positioning of the cover plate. Subsequently, the cover plate is adsorbed and fixed by the second suction cup of the adsorption component, avoiding the stress concentration problem that may be introduced by mechanical clamping. After the stress is released, the cover plate is more stably aligned with the base, significantly reducing the risk of deformation that may occur during welding, thereby solving the technical problem of stress concentration at the weld, and improving the uniformity of the weld and the long-term reliability of the package.

[0035] 3. Improve welding efficiency and safety:

[0036] The laser welding head performs welding when the cover and the base are precisely aligned, which significantly improves the quality of the weld. The automated design of the welding process improves the efficiency and safety of the welding operation and ensures the packaging quality of high-precision microwave components.

[0037] 4. Simplify the reset process and ensure package stability:

[0038] After welding is completed, the connecting frame and the positioning frame are gradually lifted upwards, and the suction cup gradually releases the cover. The entire resetting process is smooth and orderly, ensuring the stability and consistency of the package.

[0039] 5. Facilitate the removal of the base and optimize the operation process:

[0040] During the upward reset process, the connection frame resets before the positioning frame, and the suction cup is separated under the influence of the gravity of the cover plate and the base. Then the avoidance component resets the first positioning part and the second positioning part, and the base is mechanically clamped to make the base suspended in the air, making it convenient for operators to take out the base after the segment welding is completed and prepare for the subsequent connection welding work. This design optimizes the operation process and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 It is a schematic diagram of the sealing welding frame structure of the present invention after being hidden;

[0043] Figure 3 It is a schematic diagram of the positioning frame, the connecting frame and the top frame structure of the present invention;

[0044] Figure 4 It is a schematic diagram of the box structure of the present invention;

[0045] Figure 5 It is a schematic diagram of the slide rail structure of the present invention;

[0046] Figure 6 is a schematic diagram of the first straw structure of the present invention;

[0047] Figure 7 is a schematic diagram of the second straw structure of the present invention;

[0048] Figure 8 It is a schematic diagram of the structure of the avoidance component of the present invention;

[0049] Fig. 9 is a schematic structural diagram of the first positioning portion of the present invention;

[0050] Fig.10 is a schematic diagram of the structure of the first rod and the second rod of the present invention;

[0051] Fig.11 It is a schematic diagram of the second rod structure of the present invention.

[0052] Reference numerals:

[0053] 100, welding frame; 101, positioning bracket; 102, positioning frame; 103, first positioning part; 104, second positioning part; 105, connecting frame; 106, box body; 107, first suction cup; 108, second suction cup; 109, laser welding head;

[0054] 200, first opening; 201, first connecting tube; 202, first connecting rod; 203, second opening; 204, second connecting tube; 205, second connecting rod; 206, first spring; 207, second spring; 208, positioning block; 209, wedge-shaped opening;

[0055] 300, first shaft; 301, second shaft; 302, gear; 303, rack; 304, connecting vertical bar; 305, connecting rod; 306, first rod; 307, connecting groove; 308, second rod; 309, groove; 310, top rod; 311, third spring; 312, top groove; 313, damping groove;

[0056] 400, first straw; 401, first cavity; 402, first connecting shaft; 403, first piston; 404, first screw rod; 405, second straw; 406, second cavity; 407, second connecting shaft; 408, second piston; 409, connecting strip; 410, top contact rod; 411, fourth spring; 412, traction rope; 413, fifth spring;

[0057] 500, second screw rod; 501, top frame; 502, connecting plate; 503, first chain transmission mechanism; 504, first motor; 505, second chain transmission mechanism; 506, laser welding device; 507, slide rail; 508, third screw rod; 509, second motor. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0059] refer to Figure 1-Figure 11 , a sealing device for a multi-layer microwave assembly, comprising:

[0060] Sealing welding frame 100;

[0061] A positioning bracket 101 provided on the sealing frame 100 is used to place and position the base;

[0062] A positioning frame 102 disposed on the sealing frame 100 is used to place the cover plate;

[0063] The first positioning parts 103 are arranged on the left and right sides of the positioning frame 102, and the second positioning parts 104 are arranged on the front and back sides of the positioning frame 102, which are used to preliminarily position the cover plate to correspond to the position of the base;

[0064] A connecting frame 105 is disposed on the top of the positioning frame 102, and a box body 106 is disposed on the connecting frame 105;

[0065] A first suction cup 107 is disposed at the bottom of the box body 106. A plurality of second suction cups 108 are also disposed at the bottom of the box body 106. The height of the first suction cup 107 is lower than that of the second suction cup 108.

[0066] A laser welding head 109 is provided between the box body 106 and the connecting frame 105, and the laser welding head 109 can slide along the side wall of the box body 106;

[0067] The moving component disposed between the sealing frame 100 and the connecting frame 105 is used to move the connecting frame 105 up and down. When the connecting frame 105 moves downward to a preset position, it can drive the positioning frame 102 to move downward;

[0068] The adsorption component provided between the connecting frame 105 and the first suction cup 107 and the second suction cup 108 is used to allow the first suction cup 107 to adsorb the cover plate when the connecting frame 105 moves downward to the first preset position, and to allow the second suction cup 108 to adsorb the cover plate when the connecting frame 105 moves to the second preset position;

[0069] The avoidance component provided between the connecting frame 105 and the positioning frame 102 is used to move the positions of the first positioning portion 103 and the second positioning portion 104 when the connecting frame 105 moves downward to the second preset position;

[0070] By setting the positioning bracket 101, when in use, the operator can place the base loaded with the microwave component on the positioning bracket 101, and the positioning bracket 101 limits and supports the base, and the cover plate used for packaging can be placed in the positioning frame 102. There is a certain distance between the positioning frame 102 and the positioning bracket 101, which can facilitate the operator to put the base, and there is a certain distance between the positioning frame 102 and the connecting frame 105, which can facilitate the operator to put the cover plate. The first positioning part 103 set on one side wall of the positioning frame 102 and the second positioning part 104 set on the other side wall can support and position the position of the cover plate so that the cover plate can correspond to the position of the base. After the initial positioning of the cover plate is completed, the operator can start The movable component can move the position of the connecting frame 105 downward. When the connecting frame 105 moves downward to the first preset position, the adsorption component can allow the first suction cup 107 to adsorb and fix the center position of the upper surface of the cover plate. When the connecting frame 105 moves downward to the second preset position, the avoidance component can move the position of the first positioning portion 103 and the second positioning portion 104. The first positioning portion 103 and the second positioning portion 104 leave the cover plate, canceling the clamping and positioning of the cover plate. Under the premise that the first suction cup 107 adsorbs the center position of the cover plate surface to the cover plate, the first positioning portion 103 and the second positioning portion 104 leave the cover plate, allowing the cover plate to relax and release stress. After the cover plate is not mechanically clamped and the stress is released, multiple second suction cups 108 will start working synchronously, and respectively adsorb and fix other areas of the cover plate to further enhance the stability of the cover plate. The final positioning and fixing of the cover plate is completely achieved by the adsorption component, avoiding the stress concentration problem that may be caused by the mechanical clamping of the cover plate by the positioning component, significantly reducing the deformation and internal stress that may be introduced during the welding process, thereby solving the technical problem of stress concentration at the weld. In addition, when the connecting frame 105 moves downward to the second preset position, it can drive the positioning frame 102 to move downward, and the cover plate adsorbed on the bottom of the box body 106 moves synchronously. In this process, the cover plate gradually aligns with the base more accurately after releasing the stress. When the first positioning portion 103 and the second positioning portion 104 completely leave the positioning frame 106 under the action of the avoidance component, the positioning frame 102 can move downward to the second preset position. After the inner wall of 02 is aligned, a sufficient avoidance channel is formed in the positioning frame 102, and the cover plate can be smoothly embedded in the upper position of the base. After the cover plate accurately falls into the predetermined position of the base, the positioning frame 102 and the connecting frame 105 stop moving downward. At this time, the laser welding head 109 located between the connecting frame 105 and the box body 106 can be moved. The laser path of the laser welding head 109 can correspond to the starting end of the weld. After turning on the laser welding head 109, the cover plate and the base can be section welded. The cover plate has been completely fixed by the adsorption component, and due to the previous stress release, the position of the cover plate on the base is more stable, which greatly reduces the risk of deformation that may occur during welding. Since the cover plate and the base have been combined in a state of precise alignment and no stress concentration,The quality of the weld is significantly improved. The weld is uniform and has no obvious stress concentration point, thus ensuring the airtightness and long-term reliability of the package, ensuring the high precision and high quality of the package, and improving the efficiency and safety of the welding operation. This design solves the problem of stress introduced by the traditional fixture during the sealing process, and provides a better technical solution for the packaging of high-precision microwave components. After the segment welding is completed, the connecting frame 105 and the positioning frame 102 can be reset upward, and the entire sealing device enters the reset stage. First, the moving part starts to work, and the connecting frame 105 and the positioning frame 102 are gradually lifted upward. As the connecting frame 105 moves upward, the first suction cup 107 and the plurality of second suction cups 108 previously adsorbed on the cover plate gradually release the adsorption force on the cover plate. Since the cover plate has been firmly fixed on the base by welding, the loosening of the suction cup will not cause any displacement or stress problems. The connecting frame 105 continues to rise until it returns to the initial position, and the positioning frame 102 is also reset synchronously. After the reset is completed, the device is in a standby state, ready for the next sealing operation. The entire resetting process is smooth and orderly, thus maintaining the stability and consistency of the packaging quality. In addition, during the upward resetting process, the connecting frame 105 will reset and move upward before the positioning frame 102. At this time, the first suction cup 107 and the second suction cup 108 are separated from the cover plate by the gravity of the cover plate and the base. The set avoidance component will gradually reset the first positioning part 103 and the second positioning part 104. The first positioning part 103 and the second positioning part 104 will contact the base and mechanically clamp the base to allow the base and the positioning frame 102 to move upward and leave the positioning bracket 101, leaving the base suspended, so that the subsequent staff can take out the base after the segment welding is completed, and enter the next step of connection welding.

[0071] As a further solution of the present invention, the first positioning portion 103 includes:

[0072] A first opening 200 is provided on the left and right sides of the positioning frame 102 , a first connecting tube 201 is slidably connected in the first opening 200 , and a first connecting rod 202 is slidably connected in the first connecting tube 201 ;

[0073] The second positioning portion 104 includes:

[0074] A second opening 203 is provided at the front and rear sides of the positioning frame 102, a second connecting tube 204 is slidably connected in the second opening 203, and a second connecting rod 205 is slidably connected in the second connecting tube 204;

[0075] Among them, a first spring 206 is connected between the first connecting tube 201 and the positioning frame 102, and between the second connecting tube 204 and the positioning frame 102. A second spring 207 is connected between the first connecting rod 202 and the first connecting tube 201, and between the second connecting rod 205 and the second connecting tube 204. A positioning block 208 is provided at one end of the first connecting rod 202 and the second connecting rod 205, and a wedge-shaped opening 209 is provided at the top of the positioning block 208.

[0076] By setting the first connecting tube 201 and the second connecting tube 204, the first connecting tube 201 and the second connecting tube 204 are limited in position by the first spring 206, the potential energy of the first spring 206 is greater than the second spring 207, in the initial state, the positioning block 208 is in the positioning frame 102, and the wedge-shaped openings 209 on the multiple positioning blocks 208 form a rectangular cavity with an area smaller than the cover plate. When used, the cover plate can be placed in the positioning frame 102, corresponding to the position of the wedge-shaped opening 209, in the cover After the plate is in the wedge-shaped opening 209, the position of the cover plate can be pressed downward to allow the cover plate to press the wedge-shaped opening 209, and the positioning block 208 can be moved through the wedge-shaped opening 209, so that the first connecting rod 202 and the second connecting rod 205 slide and stretch the second spring 207. After the cover plate contacts the bottom of the wedge-shaped opening 209, the potential energy of the second spring 207 can be used to mechanically clamp the cover plate to achieve the purpose of preliminary positioning of the cover plate, ensuring that the cover plate is stable in the positioning frame 102 and is initially aligned with the base. In this process, the wedge-shaped opening 209 of the positioning block 208 provides stable support, making it difficult for the cover plate to be displaced, thereby effectively preventing errors during preliminary positioning.

[0077] As a further solution of the present invention, the avoidance component includes a first shaft 300 rotatably connected to the corner of the positioning frame 102, the two ends of the first shaft 300 are respectively connected to the second shaft 301 through a universal joint, the second shaft 301 is connected to a gear 302, and the first connecting tube 201 and the second connecting tube 204 are connected to a rack 303 meshing with the gear 302;

[0078] By setting the rack 303, when the connecting frame 105 is moved downward, the position of the first connecting tube 201 can be moved to allow the first connecting tube 201 to move. When the first connecting tube 201 moves, the second connecting tube 204 can be moved through the rack 303, the gear 302, the universal joint of the second shaft 301 and the first shaft 300. Since the second spring 207 is in a potential energy state at this time, the first connecting tube 201 and the second connecting tube 204 will gradually release the potential energy of the second spring 207 during the initial movement, so that the positioning block 208 will not generate a squeezing force on the cover plate, but still maintain the support of the cover plate. At this time, The first suction cup 107 is adsorbed on the cover plate through the adsorption component. When the second spring 207 is no longer acting on the cover plate, the cover plate releases stress, thereby avoiding the stress concentration problem caused by mechanical clamping. At this time, the connecting frame 105 continues to move downward, driving the rack 303 to further push the first connecting tube 201 and the second connecting tube 204 to move until the positioning block 208 completely leaves the edge of the cover plate. At this time, the adsorption component set can allow the second suction cup 108 to be adsorbed on the cover plate. The withdrawal of the positioning block 208 provides a completely free space for the cover plate, so that it can be accurately aligned with the base and in close contact.

[0079] As a further solution of the present invention, two sides of the connecting frame 105 are respectively connected with connecting vertical bars 304, the bottom of the connecting vertical bars 304 is rotatably connected with a connecting rod 305, and the bottom of the connecting rod 305 is rotatably connected to the first connecting tube 201;

[0080] By providing the connecting vertical bar 304, when the connecting frame 105 moves downward, the connecting vertical bar 304 can press the position of the connecting rod 305, so that the connecting rod 305 can rotate, and the bottom of the connecting rod 305 can push the first connecting tube 201, so that the first connecting tube 201 can be moved. After the first connecting tube 201 moves, the first spring 206 provided is stretched to generate potential energy, which is convenient for the subsequent resetting of the first connecting tube 201, so that the first connecting tube 201 moves through the rack 303, the gear 302, the second shaft 301, the universal joint and the first shaft 300 to allow the second connecting tube 204 to move at the same time, so that only the left and right sides of the positioning frame 102 have the connecting vertical bar 304 and the connecting rod 305 structure, and a space sufficient for the cover plate to enter and exit is formed on the front and rear sides of the positioning frame 102, and the positioning blocks 208 on the four sides of the positioning frame 102 are used to perform center positioning on the cover plate, so as to ensure that it is convenient for operators to put the cover plate.

[0081] As a further solution of the present invention, a first rod 306 is connected to the sealing welding frame 100, and connecting grooves 307 are respectively provided on both sides of the first rod 306, and a second rod 308 connected to the positioning frame 102 is slidably connected in the connecting groove 307, and grooves 309 are respectively provided on both sides of the second rod 308, and a push rod 310 is slidably connected in the groove 309, and a third spring 311 is connected between the push rod 310 and the groove 309, and a plurality of top grooves 312 adapted to the push rod 310 are provided on the side wall of the connecting groove 307, and one end of the push rod 310 is semi-spherical, and the top groove 312 is a semi-spherical groove adapted to the semi-spherical end of the push rod 310;

[0082] By setting the third spring 311, the third spring 311 can use itself to make the top rod 310 and the top groove 312 clamped, and use the friction between the top groove 312 and the top rod 310 to limit the position of the second rod 308 and the positioning frame 102. When the connecting frame 105 moves downward to move the first connecting tube 201 through the connecting vertical bar 304 and the connecting rod 305, the top rod 310 is still sleeved with the clamping groove by the force of the third spring 311, and the position of the positioning frame 102 is also limited, ensuring that the positioning frame 102 will not accidentally slide during this process, thereby maintaining the stability of the overall system. When the positioning frame 102 moves downward to allow the first connecting tube 201 to move to the extreme position and the positioning block 208 leaves the inner wall of the positioning frame 102, the friction between the top rod 310 and the top groove 312 reaches the limit, and the friction between the top rod 310 and the top groove 312 will be completely eliminated. At this time, the top rod 310 will automatically disengage from the top groove 312, and the positioning frame 102 can continue to move downward. When the cover plate reaches the predetermined welding position, the top rod 310 corresponds to a corresponding card slot and is sleeved. At this time, the moving connecting frame 105 can be stopped, thereby avoiding inaccurate positioning or errors that may occur during the critical operation stage.

[0083] As a further solution of the present invention, a damping groove 313 is provided on one side of the positioning block 208;

[0084] By setting the damping groove 313, after the laser welding head 109 completes the welding of the cover plate and the base, the position of the connecting frame 105 can be reset upwards, the connecting frame 105 moves upwards, the first suction cup 107 and the second suction cup 108 are separated from the cover plate, and the first rod 306 is limited by the friction between the top rod 310 and the slot to limit the position of the positioning frame 102, that is, the connecting frame 105 will move upwards before the positioning frame 102, when the connecting frame 105 is reset upwards, the first spring 206 between the first connecting tube 201, the second connecting tube 204 and the positioning frame 102 gradually releases the potential energy, so that the first connecting tube 201, the second connecting tube 204, the first connecting rod 202, the second connecting rod 205 and the positioning block 208 can move upwards. The base is reset and moved. When the positioning block 208 is reset, it can contact the base. After the first connecting tube 201 and the second connecting tube 204 are completely reset, the second spring 207, the first connecting rod 202, the second connecting rod 205 and the positioning block 208 can be used to clamp the base, and the friction between the base and the base is increased by setting the damping groove 313, so that the base and the cover plate welded on the base are clamped together, and move with the movement of the connecting frame 105, so that the base leaves the positioning bracket 101 and is suspended in the air. The friction provided by the damping groove 313 can ensure that the base and the cover plate remain stable during the movement, and avoid displacement or falling off of the base or the cover plate due to gravity or other external forces, so that the operator can remove the base conveniently.

[0085] As a further solution of the present invention, the adsorption component includes a first suction pipe 400 connected to the bottom of the box body 106, the first suction cup 107 is slidably connected to the bottom of the first suction pipe 400, a first cavity 401 is opened in the first suction pipe 400, a first connecting shaft 402 is slidably connected in the first cavity 401, a first piston 403 adapted to the first cavity 401 is connected to the bottom of the first connecting shaft 402, and a first screw rod 404 threadedly connected to the first connecting shaft 402 is rotatably connected to the first suction pipe 400;

[0086] By providing the first suction cup 107, the first suction cup 107 can be slidably arranged on the first suction tube 400, and when the connecting frame 105 moves downward to allow the first connecting tube 201 and the second connecting tube 204 to be displaced, when the second spring 207 releases the potential energy, during this process, the box body 106 and the first suction tube 400 on the box body 106 move downward following the connecting frame 105, and the first suction cup 107 can contact the cover plate, and the rotation of the first screw rod 404 can allow the first connecting shaft 402 and the piston to move upward through the force of the thread, and when the piston moves into the first cavity 401, negative pressure can be generated at the bottom of the first suction tube 400 and the first suction cup 107, and the negative pressure can allow the first suction cup 107 to be adsorbed on the cover plate, so as to achieve the purpose of the second step positioning of the cover plate.

[0087] As a further solution of the present invention, a plurality of second straws 405 are further connected to the bottom of the box body 106, the second suction cup 108 is slidably connected to the bottom of the second straw 405, a second cavity 406 is defined in the second straw 405, a second connecting shaft 407 is slidably connected in the second cavity 406, a second piston 408 adapted to the second cavity 406 is connected to the bottom of the second connecting shaft 407, and a connecting strip 409 is connected between the second connecting shaft 407 and the first connecting shaft 402;

[0088] By setting the second connecting strip 409, when the first screw 404 rotates to allow the first connecting shaft 402 and the first piston 403 to move upward to absorb the cover plate, the connecting frame 105 is still moving downward, so that the first suction cup 107 can be slidably arranged on the first suction pipe 400, and a certain avoidance space can be formed. When the connecting frame 105 moves downward to allow the positioning block 208 to completely leave the cover plate, the second suction cup 108 can contact the cover plate, and when the first connecting shaft 402 moves, the second connecting shaft 407 can also be moved upward through the connecting strip 409, so that the second suction pipe 405 can be reset, and the cover plate can be adsorbed and fixed by the second suction cup 108. At this time, the cover plate is in a state of stress release when it is adsorbed and fixed by the second suction cup 108, which means that the cover plate has reached a stable state before welding. The adsorption and fixation of the second suction cup 108 not only ensures the accurate positioning of the cover plate, but also further enhances the stability of the cover plate during the entire welding process. Since the cover plate is no longer affected by mechanical clamping at this time, no new stress concentration points will be generated during the adsorption process, thereby effectively avoiding welding defects caused by stress.

[0089] As a further solution of the present invention, a top-touch rod 410 is slidably connected to the connecting frame 105, a fourth spring 411 is connected between the top-touch rod 410 and the connecting frame 105, a traction rope 412 is connected to the top of the top-touch rod 410, one end of the traction rope 412 extends into the box body 106 and is wound around the first screw rod 404, and a fifth spring 413 is connected between the first screw rod 404 and the box body 106;

[0090] By setting the top-touch rod 410, when the connecting frame 105 moves downward toward the positioning frame 102, the top-touch rod 410 can contact the positioning frame 102, and the top-touch rod 410 can slide relative to the connecting frame 105. When the top-touch rod 410 slides relative to the connecting frame 105 and pulls the traction rope 412, the traction rope 412 drives the part wound on the first screw rod 404 to rotate. At this time, the first screw rod 404 will rotate accordingly, thereby driving the first connecting shaft 402 and the first piston 403 connected thereto to move upward, so that the first suction cup 107 gradually approaches the center position of the cover plate. As the connecting frame 105 continues to move downward, the top-touch rod 410 continues to slide, further pulling the traction rope 412, prompting the first screw rod 404 to continue to rotate, ensuring that the first suction cup 107 is firmly adsorbed to the center of the cover plate in the final position.

[0091] As a further solution of the present invention, the moving part includes two second screw rods 500 rotatably connected to the sealing frame 100, the top of the connecting frame 105 is connected to a top frame 501, the connecting frame 105 is connected to the bottom of the top frame 501, the top frame 501 is connected to a connecting plate 502 threadedly connected to the second screw rods 500, a first chain transmission mechanism 503 is connected between the two second screw rods 500, a first motor 504 is connected to the sealing frame 100, and a drive shaft of the first motor 504 is connected to one of the second screw rods 500. A second chain transmission mechanism 505 is connected, a laser welding device 506 is arranged in the top frame 501, a cable is connected between the laser welding device 506 and the laser welding head 109, a slide rail 507 is connected between the box body 106 and the connecting frame 105, a third screw rod 508 is rotatably connected to the slide rail 507, the laser welding head 109 is slidably connected to the slide rail 507, and is threadedly connected to the third screw rod 508, a second motor 509 is connected to the connecting frame 105, and a driving shaft of the second motor 509 is connected to the third screw rod 508;

[0092] By setting the above-mentioned moving parts, when the first motor 504 is started, the driving shaft drives one of the second screw rods 500 to rotate through the second chain transmission mechanism 505, and synchronously drives the other second screw rod 500 to rotate through the first chain transmission mechanism 503. Since the connecting plate 502 is threadedly connected to the second screw rod 500, the connecting frame 105 will move along the axial direction of the screw rod under the rotation of the second screw rod 500, so as to realize the up and down movement of the connecting frame 105. The setting of the top frame 501 not only provides stable support, but also ensures that the connecting frame 105 maintains balance during movement to avoid tilting. The laser welding device 506 is fixed inside the top frame 501 and is connected to the laser welding head 109 through a cable so as to accurately control the output of the laser during the welding process. When the connection frame 105 moves to a predetermined working position, the laser welding device 506 performs a welding operation on the cover plate and the base through the laser welding head 109. During the welding operation, the second motor 509 is started to drive its drive shaft to rotate, and then the laser welding head 109 is accurately moved on the slide rail 507 through the third screw rod 508. The threaded connection between the third screw rod 508 and the laser welding head 109 ensures that the laser welding head 109 can slide smoothly along the slide rail 507, accurately align with the welding position, and realize high-precision welding path control.

[0093] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing device for a multi-layer microwave assembly, characterized in that: include: Sealing welding frame (100); A positioning bracket (101) provided on the sealing welding frame (100) and used for placing and positioning the base; A positioning frame (102) provided on the sealing welding frame (100) and used for placing a cover plate; First positioning parts (103) are arranged on the left and right sides of the positioning frame (102), and second positioning parts (104) are arranged on the front and back sides of the positioning frame (102), for preliminarily positioning the cover plate to correspond to the position of the base; A connecting frame (105) is arranged on the top of the positioning frame (102), and a box body (106) is arranged on the connecting frame (105); A first suction cup (107) is arranged at the bottom of the box body (106); a plurality of second suction cups (108) are also arranged at the bottom of the box body (106); the height of the first suction cup (107) is lower than that of the second suction cup (108); a laser welding head (109) provided between the box body (106) and the connecting frame body (105), wherein the laser welding head (109) is capable of sliding along the side wall of the box body (106); A moving component provided between the sealing frame (100) and the connecting frame (105), used for moving the connecting frame (105) up and down, and capable of driving the positioning frame (102) to move downward when the connecting frame (105) moves downward to a preset position; an adsorption component provided between the connecting frame (105) and the first suction cup (107) and the second suction cup (108), and used to allow the first suction cup (107) to adsorb the cover plate when the connecting frame (105) moves downward to a first preset position, and to allow the second suction cup (108) to adsorb the cover plate when the connecting frame (105) moves to a second preset position; an avoidance component provided between the connecting frame (105) and the positioning frame (102), used for moving the positions of the first positioning portion (103) and the second positioning portion (104) when the connecting frame (105) moves downward to a second preset position; The first positioning portion (103) comprises: A first opening (200) is provided on the left and right sides of the positioning frame (102), a first connecting tube (201) is slidably connected in the first opening (200), and a first connecting rod (202) is slidably connected in the first connecting tube (201); The second positioning portion (104) comprises: A second opening (203) is provided on both the front and rear sides of the positioning frame (102), a second connecting tube (204) is slidably connected in the second opening (203), and a second connecting rod (205) is slidably connected in the second connecting tube (204); A first spring (206) is connected between the first connecting tube (201) and the positioning frame (102), and between the second connecting tube (204) and the positioning frame (102); a second spring (207) is connected between the first connecting rod (202) and the first connecting tube (201), and between the second connecting rod (205) and the second connecting tube (204); one end of each of the first connecting rod (202) and the second connecting rod (205) is provided with a positioning block (208), and a wedge-shaped opening (209) is provided at the top of each of the positioning blocks (208); The avoidance component comprises a first shaft (300) rotatably connected to a corner of the positioning frame (102), the two ends of the first shaft (300) being respectively connected to a second shaft (301) via a universal joint, the second shaft (301) being connected to a gear (302), and the first connecting tube (201) and the second connecting tube (204) being connected to a rack (303) meshing with the gear (302); Both sides of the connection frame (105) are respectively connected to connection vertical bars (304), the bottom of the connection vertical bars (304) is rotatably connected to a connecting rod (305), and the bottom of the connecting rod (305) is rotatably connected to the first connection tube (201); The sealing welding frame (100) is connected to a first rod (306), and connecting grooves (307) are respectively provided on both sides of the first rod (306). A second rod (308) connected to the positioning frame (102) is slidably connected in the connecting groove (307), and grooves (309) are respectively provided on both sides of the second rod (308). A push rod (310) is slidably connected in the groove (309), and a third spring (311) is connected between the push rod (310) and the groove (309). A plurality of top grooves (312) adapted to the push rod (310) are provided on the side wall of the connecting groove (307), and one end of the push rod (310) is semi-spherical, and the top groove (312) is a semi-spherical groove adapted to the semi-spherical end of the push rod (310).

2. A sealing device for a multi-layer microwave component according to claim 1, characterized in that: A damping groove (313) is provided on one side of the positioning block (208).

3. A sealing device for a multi-layer microwave component according to claim 1, characterized in that: The adsorption component comprises a first suction tube (400) connected to the bottom of the box body (106); the first suction cup (107) is slidably connected to the bottom of the first suction tube (400); a first cavity (401) is defined in the first suction tube (400); a first connecting shaft (402) is slidably connected in the first cavity (401); a first piston (403) adapted to the first cavity (401) is connected to the bottom of the first connecting shaft (402); and a first screw rod (404) threadedly connected to the first connecting shaft (402) is rotatably connected to the first suction tube (400).

4. A sealing device for a multi-layer microwave assembly according to claim 3, characterized in that: The bottom of the box body (106) is also connected to a plurality of second straws (405); the second suction cup (108) is slidably connected to the bottom of the second straw (405); a second cavity (406) is defined in the second straw (405); a second connecting shaft (407) is slidably connected in the second cavity (406); a second piston (408) adapted to the second cavity (406) is connected to the bottom of the second connecting shaft (407); and a connecting strip (409) is connected between the second connecting shaft (407) and the first connecting shaft (402).

5. The sealing device for a multi-layer microwave assembly according to claim 3, characterized in that: A top-touch rod (410) is slidably connected to the connecting frame (105), a fourth spring (411) is connected between the top-touch rod (410) and the connecting frame (105), a traction rope (412) is connected to the top of the top-touch rod (410), one end of the traction rope (412) extends into the box body (106) and is wound around the first screw rod (404), and a fifth spring (413) is connected between the first screw rod (404) and the box body (106).

6. A sealing device for a multi-layer microwave assembly according to claim 5, characterized in that: The moving component comprises two second screw rods (500) rotatably connected to the welding frame (100); the top of the connecting frame (105) is connected to a top frame (501); the connecting frame (105) is connected to the bottom of the top frame (501); the top frame (501) is connected to a connecting plate (502) threadedly connected to the second screw rods (500); a first chain transmission mechanism (503) is connected between the two second screw rods (500); the welding frame (100) is connected to a first motor (504); a second chain transmission mechanism (503) is connected between the driving shaft of the first motor (504) and one of the second screw rods (500); The invention relates to a mechanism (505), wherein a laser welding device (506) is provided in the top frame (501), a cable is connected between the laser welding device (506) and the laser welding head (109), a slide rail (507) is connected between the box body (106) and the connecting frame body (105), a third screw rod (508) is rotatably connected to the slide rail (507), the laser welding head (109) is slidably connected to the slide rail (507) and is threadedly connected to the third screw rod (508), a second motor (509) is connected to the connecting frame body (105), and a drive shaft of the second motor (509) is connected to the third screw rod (508).

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