Non-metal graphite and metal copper welding device and method

Abstract

The invention discloses a welding device and method for non-metal graphite and metal copper, and relates to the technical field of dissimilar material welding, the welding device comprises a fixing plate, a welding mechanism is arranged at the top of the fixing plate and used for welding the non-metal graphite and the metal copper, and the non-metal graphite and the metal copper are welded through a welding arm; the welding mechanism comprises a supporting frame which is fixed to the outer wall of the fixing plate. When different positions need to be welded, a first motor is started to drive a first transmission shaft to rotate, when the first transmission shaft rotates, a first gear fixed to the bottom of the first transmission shaft also rotates, at the moment, the first gear rotates along a tooth groove in an outer ring gear, and a movable plate limits the position of the first motor; the sliding block and the welding arm located at the bottom of the sliding block can move at the same time through the rotating shaft located at the bottom of the device, so that the welding position is moved, and the device has the advantages that the welding position can be rapidly moved, different positions can be welded, and the convenience of the device is improved.

Description

Technical Field

[0001] This invention belongs to the field of dissimilar material welding technology, and in particular relates to a welding apparatus and method for non-metallic graphite and metallic copper. Background Technology

[0002] Graphite-copper welding refers to a joining technology that uses specific processes to form a metallurgical bond or a mechanical-metallurgical composite bond between non-metallic graphite (carbon element, layered structure) and metallic copper (transition metal, face-centered cubic structure). The core objective is to achieve functional complementarity between the two materials (such as the synergy between graphite's high temperature resistance / lubricity and copper's high electrical conductivity / thermal conductivity).

[0003] Chinese patent CN114571130B discloses a method for preparing welding material for welding copper to non-metallic substrates. The method includes heating and melting metallic copper under negative pressure to form a copper molten liquid, then raising the temperature to the melting point of metallic titanium, adding metallic titanium to the copper molten liquid, maintaining the temperature under negative pressure to melt the titanium, then cooling the temperature to a level not lower than the melting point of germanium and adding germanium, then maintaining the temperature under negative pressure to melt the germanium; then adding silver and maintaining the temperature under negative pressure until the silver melts, then cooling the temperature to a level lower than the graphitization temperature of diamond and adding diamond, then maintaining the temperature under negative pressure to mix, and finally cooling to room temperature to obtain the welding material. The welding material obtained by this invention can be made into welding sheets, welding rods, etc., and used for welding non-metallic ceramics such as oxygen-free copper and silicon nitride ceramics, and for welding oxygen-free copper to non-metallic ceramics with diamond inlaid on the surface to prepare ceramic copper-clad laminates. The weld layer has strong bonding strength and can improve the heat transfer performance of ceramic copper-clad laminates, etc.

[0004] As shown above, the welding materials of this scheme can be made into welding sheets, welding rods, etc., for welding non-metallic ceramics such as oxygen-free copper and silicon nitride ceramics, and for welding oxygen-free copper and non-metallic ceramics with diamond inlaid on the surface to prepare ceramic copper-clad laminates. The bonding force of the weld layer is strong, and it can improve the heat transfer performance of ceramic copper-clad laminates, etc. However, there are still the following shortcomings: when welding non-metallic graphite and metallic copper, this scheme may cause the welding surface to be too small, resulting in weak weld points and breakage after welding. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides a welding apparatus and method for non-metallic graphite and metallic copper, which solves the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a welding device for non-metallic graphite and metallic copper, comprising a fixed plate, a welding mechanism on the top of the fixed plate for welding non-metallic graphite and metallic copper, the welding mechanism comprising a support frame fixed to the outer wall of the fixed plate, a limit ring fixedly connected to the inner wall of the support frame, a movable plate slidably connected to the inner wall of the limit ring, a first motor fixedly connected to the top of the movable plate, a transmission shaft fixedly connected to the bottom output end of the first motor, a gear fixedly connected to the bottom of the transmission shaft, a rotating shaft fixedly connected to the bottom of the gear, a slider rotatably connected to the bottom of the rotating shaft, a welding arm fixedly connected to the bottom of the slider, an outer gear fixedly connected to the inner wall of the limit ring, the outer surface of the outer gear meshing with the outer surface of the gear, and the outer surface of the slider slidably connected to the inner wall of the limit ring.

[0007] Preferably, a cutting mechanism is provided at the bottom of the limiting ring for cutting the welding surfaces of non-metallic graphite and metallic copper. The cutting mechanism includes a hydraulic device fixed to the bottom of the limiting ring. A connecting plate is fixedly connected to the output end of the hydraulic device. A cutting blade motor is fixedly connected to the outer wall of the connecting plate. A cutting blade is fixedly connected to the bottom output end of the cutting blade motor through a coupling. The outer surface of the cutting blade is rotatably connected to the inner wall of the connecting plate. A fan is fixedly connected to the top of the fixed plate for blowing away cutting debris.

[0008] Preferably, the bottom of the fixed plate is provided with a positioning mechanism for positioning and fixing the material. The positioning mechanism includes a second motor, which is fixed to the outer wall of the base. The bottom output end of the second motor is fixedly connected to a second transmission shaft through a coupling. A bidirectional lead screw is fixedly connected to the outer wall of the second transmission shaft.

[0009] Preferably, the outer surface of the bidirectional lead screw is threaded with a threaded block, the top of the threaded block is fixedly connected with a clamping plate, the inner wall of the fixed plate is fixedly connected with a guide rod, the outer surface of the guide rod is slidably connected to the inner wall of the threaded block, and the bottom of the fixed plate is fixedly connected with a third motor.

[0010] Preferably, the bottom output end of the third motor is fixedly connected to a transmission shaft three via a coupling, a bevel gear one is fixedly connected to the outer wall of the transmission shaft three, a bevel gear two is meshed with the outer surface of the bevel gear one, a gear two is fixedly connected to the top of the bevel gear two, the top of the gear two is rotatably connected to the bottom of the fixed plate, and a gear three is rotatably connected to the bottom of the fixed plate.

[0011] Preferably, the outer surface of the third gear is meshed with the outer surface of the second gear, a rack is meshed with the outer surface of the third gear, a fixing block is fixedly connected to the top of the rack, an auxiliary block is fixedly connected to the top of the fixing block, and a damper is fixedly connected to the outer wall of the auxiliary block.

[0012] Preferably, there are several dampers, and a positioning plate is fixedly connected to the end of each damper away from the auxiliary block. A damping spring is fixedly connected to the outer wall of the positioning plate, and the end of the damping spring away from the positioning plate is fixedly connected to the outer wall of the auxiliary block.

[0013] This invention also discloses a welding method for a welding apparatus for non-metallic graphite and metallic copper, specifically including the following steps: S1. The welding arm welds non-metallic graphite and metallic copper. When welding is required at different locations, the first motor is started to drive the transmission shaft fixed at its output end to rotate. S2. When the drive shaft rotates, the gear fixed at its bottom will also rotate. At this time, the gear will rotate along the tooth groove on the outer ring gear, and the moving plate sliding on the inner wall of the limit ring will restrict the position of the first motor. S3. When the gear moves, the rotating shaft at its bottom will cause the slider and the welding arm at the bottom of the slider to move simultaneously, thereby moving the welding position.

[0014] The present invention has the following beneficial effects: 1. The welding device and method for non-metallic graphite and metallic copper, wherein the welding arm welds non-metallic graphite and metallic copper. When welding is required at different positions, the first motor is started to drive the first transmission shaft to rotate. When the first transmission shaft rotates, the first gear fixed at its bottom also rotates. At this time, the first gear rotates along the tooth groove on the outer ring gear, and the moving plate restricts the position of the first motor. When the first gear moves, the rotating shaft at its bottom allows the slider and the welding arm at the bottom of the slider to move simultaneously, thereby moving the welding position. The advantage is that the welding position can be moved quickly, and welding can be performed at different positions, thereby improving the convenience of the device.

[0015] 2. The welding device and method for non-metallic graphite and metallic copper involves starting a cutting blade motor to rotate the cutting blade, and then using a hydraulic device to move the cutting blade downwards to cut the welding surfaces of the non-metallic graphite and metallic copper, creating a beveled surface. At this point, a blower is activated to blow away the cutting debris, preventing mixed debris from affecting the welding effect. The advantage of this method is that it cuts the non-metallic graphite and metallic copper surfaces, resulting in a larger welding surface and thus a more stable weld.

[0016] 3. The welding device and method for non-metallic graphite and metallic copper involves starting a second motor to drive a second transmission shaft to rotate. When the second transmission shaft rotates, a bidirectional lead screw also rotates. When the bidirectional lead screw rotates, the threaded block moves, and the clamping plate also moves to fix the non-metallic graphite and metallic copper. When positioning is required, a third motor is started to drive a third transmission shaft to rotate. When the third transmission shaft rotates, a first bevel gear rotates, and when the first bevel gear rotates, a second bevel gear rotates. This rotation of the first gear rotates, which in turn drives the third gear to rotate. When the third gear rotates, the two racks rotate, which in turn drives the fixing block to rotate. When the fixing block rotates, the auxiliary block rotates. The advantage of this method is that it clamps and positions the non-metallic graphite and metallic copper, ensuring positioning accuracy and preventing deviations during welding that could lead to poor welding results.

[0017] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the fan structure of the present invention; Figure 3 This is a schematic diagram of the cutting blade structure of the present invention; Figure 4 This is a schematic diagram of the outer ring gear structure of the present invention; Figure 5 This is a schematic diagram of the bidirectional lead screw structure of the present invention; Figure 6 This is a schematic diagram of the rack structure of the present invention; Figure 7 This is a schematic diagram of the positioning plate structure of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: 1. Fixed plate; 2. Support frame; 3. Limiting ring; 4. Hydraulic device; 5. Connecting plate; 6. Cutting blade; 7. Cutting blade motor; 8. Drive shaft one; 9. Outer ring gear; 10. First motor; 11. Moving plate; 12. Gear one; 13. Slider; 14. Welding arm; 15. Fan; 16. Base; 17. Second motor; 18. Drive shaft two; 19. Two-way lead screw; 20. Threaded block; 21. Clamping plate; 22. Guide rod; 23. Third motor; 24. Drive shaft three; 25. Bevel gear one; 26. Bevel gear two; 27. Gear two; 28. Gear three; 29. ​​Rack; 30. Fixed block; 31. Auxiliary block; 32. Damper; 33. Positioning plate; 34. Damping spring; 35. Rotating shaft. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] This invention provides three technical solutions: Figures 1-4 The first embodiment is shown: a welding device for non-metallic graphite and metallic copper, including a fixed plate 1, a welding mechanism on the top of the fixed plate 1 for welding non-metallic graphite and metallic copper, the welding mechanism including a support frame 2 fixed to the outer wall of the fixed plate 1, a limit ring 3 fixedly connected to the inner wall of the support frame 2, a movable plate 11 slidably connected to the inner wall of the limit ring 3, a first motor 10 fixedly connected to the top of the movable plate 11, a transmission shaft 8 fixedly connected to the bottom output end of the first motor 10, a gear 12 fixedly connected to the bottom of the transmission shaft 8, a rotating shaft 35 fixedly connected to the bottom of the gear 12, and a slider 13 rotatably connected to the bottom of the rotating shaft 35; by starting the first motor 10, the transmission shaft 8 fixed at its output end is driven to rotate, and when the transmission shaft 8 rotates, the gear 12 fixed at its bottom also rotates.

[0023] A welding arm 14 is fixedly connected to the bottom of the slider 13. Non-metallic graphite and metallic copper are welded through the welding arm 14. An outer ring gear 9 is fixedly connected to the inner wall of the limiting ring 3. The outer surface of the outer ring gear 9 meshes with the outer surface of gear 12. The outer surface of the slider 13 is slidably connected to the inner wall of the limiting ring 3. Figures 1-3The second embodiment is shown. The main difference from the first embodiment is that a cutting mechanism is provided at the bottom of the limiting ring 3 for cutting the welding surfaces of non-metallic graphite and metallic copper. The cutting mechanism includes a hydraulic device 4, which is fixed to the bottom of the limiting ring 3. A connecting plate 5 is fixedly connected to the output end of the hydraulic device 4. A cutting blade motor 7 is fixedly connected to the outer wall of the connecting plate 5. A cutting blade 6 is fixedly connected to the bottom output end of the cutting blade motor 7 through a coupling. The outer surface of the cutting blade 6 is rotatably connected to the inner wall of the connecting plate 5. A fan 15 is fixedly connected to the top of the fixed plate 1 for blowing away cutting debris. The cutting blade motor 7 is started to drive the cutting blade 6 to rotate. The hydraulic device 4 is started to drive the cutting blade 6 to move downward, thereby cutting the welding surface of non-metallic graphite and metallic copper, so that the welding surface forms an inclined surface. At this time, the fan 15 is started to blow away the cutting debris.

[0024] Figures 5-7 The second embodiment is shown. The main difference from the first embodiment is that the bottom of the fixing plate 1 is provided with a positioning mechanism for positioning and fixing the material. The positioning mechanism includes a second motor 17, which is fixed to the outer wall of the base 16. The bottom output end of the second motor 17 is fixedly connected to a second transmission shaft 18 through a coupling. A bidirectional lead screw 19 is fixedly connected to the outer wall of the second transmission shaft 18. The positioning mechanism is used to position the non-metallic graphite and metallic copper, thereby facilitating subsequent welding.

[0025] A threaded block 20 is threadedly connected to the outer surface of the bidirectional lead screw 19. A clamping plate 21 is fixedly connected to the top of the threaded block 20. A guide rod 22 is fixedly connected to the inner wall of the fixed plate 1. The outer surface of the guide rod 22 is slidably connected to the inner wall of the threaded block 20. A third motor 23 is fixedly connected to the bottom of the fixed plate 1. The second motor 17 is started to drive the transmission shaft 18 fixed at its output end to rotate. When the transmission shaft 18 rotates, the bidirectional lead screw 19 fixed on its outer wall will also rotate.

[0026] The bottom output end of the third motor 23 is fixedly connected to a transmission shaft 24 via a coupling. A bevel gear 25 is fixedly connected to the outer wall of the transmission shaft 24. A bevel gear 26 is meshed with the outer surface of the bevel gear 25. A gear 27 is fixedly connected to the top of the bevel gear 26. The top of the gear 27 is rotatably connected to the bottom of the fixed plate 1. A gear 28 is rotatably connected to the bottom of the fixed plate 1. When the transmission shaft 24 rotates, the bevel gear 25 fixed to its outer wall will also rotate. When the bevel gear 25 rotates, the bevel gear 26 meshing with its outer surface will also rotate. At this time, the gear 27 fixed to the top of the bevel gear 26 will also rotate.

[0027] The outer surface of gear 3 28 meshes with the outer surface of gear 2 27. A rack 29 is meshed with the outer surface of gear 3 28. A fixing block 30 is fixedly connected to the top of rack 29. An auxiliary block 31 is fixedly connected to the top of fixing block 30. A damper 32 is fixedly connected to the outer wall of auxiliary block 31. The positioning plate 33 moves by moving auxiliary block 31.

[0028] There are several dampers 32. The end of the damper 32 away from the auxiliary block 31 is fixedly connected to a positioning plate 33. The outer wall of the positioning plate 33 is fixedly connected to a damping spring 34. The end of the damping spring 34 away from the positioning plate 33 is fixedly connected to the outer wall of the auxiliary block 31. When the positioning plate 33 comes into contact with the material, it will be buffered and damped by the damper 32 and the damping spring 34.

[0029] This invention also discloses a welding method for a welding apparatus for non-metallic graphite and metallic copper, specifically including the following steps: By starting the second motor 17, the transmission shaft 18 fixed at its output end is rotated. When the transmission shaft 18 rotates, the bidirectional lead screw 19 fixed on its outer wall also rotates. When the bidirectional lead screw 19 rotates, the threaded block 20 threaded to its outer surface moves along the thread groove on the outer surface of the bidirectional lead screw 19 and slides on the outer surface of the guide rod 22. At this time, the clamping plate 21 fixed at the top of the threaded block 20 also moves to fix the non-metallic graphite and metallic copper. When positioning is required, the third motor 23 is started to drive the transmission shaft 24 fixed at its output end to rotate. 4. When rotating, the bevel gear 25 fixed on its outer wall will also rotate. When the bevel gear 25 rotates, the bevel gear 26 meshing on its outer surface will also rotate. At this time, the gear 27 fixed on the top of the bevel gear 26 will also rotate, thereby driving the gear 38 meshing on its outer surface to rotate. When the gear 38 rotates, the two racks 29 meshing on its outer surface will rotate, thereby driving the fixed block 30 fixed on its top to rotate. When the fixed block 30 rotates, the auxiliary block 31 fixed on its top will rotate. When the positioning plate 33 contacts the material, it will be buffered and damped by the damper 32 and the damping spring 34. At this time, the cutting blade motor 7 is started to drive the cutting blade 6 to rotate. The hydraulic device 4 is started to drive the cutting blade 6 to move downward, thereby cutting the welding surface of non-metallic graphite and metallic copper to form a bevel. At this time, the fan 15 is started to blow away the cutting debris to prevent the mixed debris from affecting the welding effect. When welding is required, non-metallic graphite and metallic copper are welded using welding arm 14. When welding is required at different locations, the first motor 10 is started to drive the transmission shaft 8 fixed at its output end to rotate. When the transmission shaft 8 rotates, the gear 12 fixed at its bottom also rotates. At this time, the gear 12 rotates along the tooth groove on the outer ring gear 9. The moving plate 11, which slides on the inner wall of the limit ring 3, restricts the position of the first motor 10. When the gear 12 moves, the rotating shaft 35 at its bottom allows the slider 13 and the welding arm 14 at the bottom of the slider 13 to move simultaneously, thereby moving the welding position.

[0030] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical component are not specifically limited; conventional equipment can be used.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding apparatus for non-metallic graphite and metallic copper, comprising a fixing plate (1), wherein a welding mechanism is provided on the top of the fixing plate (1) for welding non-metallic graphite and metallic copper, characterized in that: The welding mechanism includes a support frame (2) fixed to the outer wall of the fixed plate (1). A limit ring (3) is fixedly connected to the inner wall of the support frame (2). A moving plate (11) is slidably connected to the inner wall of the limit ring (3). A first motor (10) is fixedly connected to the top of the moving plate (11). A transmission shaft (8) is fixedly connected to the bottom output end of the first motor (10). A gear (12) is fixedly connected to the bottom of the transmission shaft (8). A rotating shaft (35) is fixedly connected to the bottom of the gear (12). A slider (13) is rotatably connected to the bottom of the rotating shaft (35). A welding arm (14) is fixedly connected to the bottom of the slider (13). An outer ring gear (9) is fixedly connected to the inner wall of the limit ring (3). The outer surface of the outer ring gear (9) meshes with the outer surface of the gear (12). The outer surface of the slider (13) is slidably connected to the inner wall of the limit ring (3).

2. The welding apparatus for non-metallic graphite and metallic copper according to claim 1, characterized in that, The bottom of the limiting ring (3) is provided with a cutting mechanism for cutting the welding surfaces of non-metallic graphite and metallic copper. The cutting mechanism includes a hydraulic device (4) fixed to the bottom of the limiting ring (3). The output end of the hydraulic device (4) is fixedly connected to a connecting plate (5). The outer wall of the connecting plate (5) is fixedly connected to a cutting blade motor (7). The bottom output end of the cutting blade motor (7) is fixedly connected to a cutting blade (6) through a coupling. The outer surface of the cutting blade (6) is rotatably connected to the inner wall of the connecting plate (5). The top of the fixing plate (1) is fixedly connected to a fan (15) for blowing away cutting debris.

3. The welding apparatus for non-metallic graphite and metallic copper according to claim 1, characterized in that, The bottom of the fixed plate (1) is provided with a positioning mechanism for positioning and fixing the material. The positioning mechanism includes a second motor (17) fixed to the outer wall of the base (16). The bottom output end of the second motor (17) is fixedly connected to a second transmission shaft (18) through a coupling. The outer wall of the second transmission shaft (18) is fixedly connected to a two-way lead screw (19).

4. The welding apparatus for non-metallic graphite and metallic copper according to claim 3, characterized in that, The outer surface of the bidirectional lead screw (19) is threaded with a threaded block (20), the top of the threaded block (20) is fixedly connected with a clamping plate (21), the inner wall of the fixing plate (1) is fixedly connected with a guide rod (22), the outer surface of the guide rod (22) is slidably connected with the inner wall of the threaded block (20), and the bottom of the fixing plate (1) is fixedly connected with a third motor (23).

5. The welding apparatus for non-metallic graphite and metallic copper according to claim 4, characterized in that, The bottom output end of the third motor (23) is fixedly connected to the transmission shaft three (24) via a coupling. The outer wall of the transmission shaft three (24) is fixedly connected to the bevel gear one (25). The outer surface of the bevel gear one (25) is meshed with the bevel gear two (26). The top of the bevel gear two (26) is fixedly connected to the gear two (27). The top of the gear two (27) is rotatably connected to the bottom of the fixing plate (1). The bottom of the fixing plate (1) is rotatably connected to the gear three (28).

6. The welding apparatus for non-metallic graphite and metallic copper according to claim 5, characterized in that, The outer surface of gear three (28) meshes with the outer surface of gear two (27). A rack (29) meshes with the outer surface of gear three (28). A fixing block (30) is fixedly connected to the top of the rack (29). An auxiliary block (31) is fixedly connected to the top of the fixing block (30). A damper (32) is fixedly connected to the outer wall of the auxiliary block (31).

7. The welding apparatus for non-metallic graphite and metallic copper according to claim 6, characterized in that, The number of dampers (32) is several. A positioning plate (33) is fixedly connected to one end of the damper (32) away from the auxiliary block (31). A damping spring (34) is fixedly connected to the outer wall of the positioning plate (33). The end of the damping spring (34) away from the positioning plate (33) is fixedly connected to the outer wall of the auxiliary block (31).

8. A welding method based on the welding apparatus for non-metallic graphite and metallic copper according to any one of claims 1-7, characterized in that, Specifically, the following steps are included: S1, Welding arm (14) welds non-metallic graphite and metallic copper. When welding is required at different locations, the first motor (10) is started to drive the transmission shaft (8) fixed at its output end to rotate. S3. When the drive shaft (8) rotates, the gear (12) fixed at its bottom will also rotate. At this time, the gear (12) will rotate along the tooth groove on the outer ring gear (9), and the moving plate (11) sliding on the inner wall of the limiting ring (3) will restrict the position of the first motor (10). S3. When gear 1 (12) moves, the rotating shaft (35) at its bottom will allow the slider (13) and the welding arm (14) at the bottom of the slider (13) to move simultaneously, thereby moving the welding position.

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