Large bus static contact welding machine and static contact welding process

Abstract

The invention relates to a large bus static contact welding machine and a welding process of a static contact. The large bus static contact welding machine comprises a switching base, a plurality of clamping mechanisms, a welding mechanism, a cooling mechanism, a feeding station, a welding station and a discharging station. The switching base is rotationally arranged to be used for driving the clamping mechanism to rotate to the feeding station or the welding station or the discharging station, the clamping mechanism is used for feeding and clamping a static contact on the feeding station, and the welding mechanism is used for welding the static contact located on the welding station. And the cooling mechanism is used for blanking and cooling the static contact on the blanking station. The device is high in automation degree, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of welding equipment, and in particular, to a large busbar static contact welding machine and a welding process for static contacts. Background Art

[0002] A static contact refers to the contact of a switch, relay, and contactor that does not move with the actuator, also known as a static contact. The large busbar static contact is a key component of a high-voltage switch. The connection and disconnection of the high-voltage switch rely on it to achieve, and its service life determines the life of the high-voltage switch, and further determines the safe operation of the high-voltage transmission and transformation power grid.

[0003] Refer to Figure 1 , the large busbar static contact 1 includes a copper sheet 11, a silver point 12, and an arcing piece 13, and the three are fixed by welding. The copper sheet 11 includes a copper sheet head 111 and a copper sheet tail 112. The copper sheet head 111 is formed by bending so that the copper sheet head 111 is in an inverted hook shape, and the end of the copper sheet tail 112 is inclined in a direction away from the copper sheet head 111. The silver point 12 and the arcing piece 13 are both welded and fixed on the head of the copper sheet 11. The silver point 12 and the arcing piece 13 are in contact with each other, and the silver point 12 and the arcing piece 13 are distributed along the length direction of the copper sheet 11. The arcing piece 13 is located at the end of the copper sheet head 111.

[0004] After the static contact 1 is welded, it needs to be cooled. However, for the above-mentioned static contact 1, currently, welding is achieved manually with the aid of tools, and then the welded static contact 1 is cooled, resulting in low automation and low production efficiency. Summary of the Invention

[0005] In order to solve the technical problem that the large busbar static contact welding machine in the prior art is inconvenient for maintenance in strong wind weather, the present application provides a large busbar static contact welding machine and a welding process for static contacts.

[0006] The large busbar static contact welding machine and the welding process for static contacts provided by the present application adopt the following technical solutions: A large busbar static contact welding machine includes a switching seat, a clamping mechanism, a welding mechanism, a cooling mechanism, a loading station, a welding station, and an unloading station. A plurality of the clamping mechanisms are provided and arranged on the switching seat. The switching seat is rotatably arranged to drive the clamping mechanism to rotate to the loading station, the welding station, or the unloading station. The clamping mechanism is used for loading and clamping the static contact at the loading station. The welding mechanism is used for welding and processing the static contact at the welding station. The cooling mechanism is used for unloading and cooling the static contact at the unloading station.

[0007] By adopting the above technical solution, by setting a plurality of clamping mechanisms, when one of the clamping mechanisms is at the welding station, the other clamping mechanisms are respectively at the feeding station, the transition station and the discharging station, so that the processes of clamping the copper sheet, the silver point and the arc initiating sheet, welding, and cooling the welded static contact can be carried out simultaneously, and the process switching is carried out by rotating the switching seat, with a high degree of automation and improved production efficiency.

[0008] Optionally, the clamping mechanism includes a fixture, a clamping driving source and a clamping member. The fixture is arranged on the switching seat. A copper sheet placement position for placing the copper sheet is formed on the fixture. The clamping member is slidably arranged on the switching seat along a direction close to or away from the copper sheet placement position. The clamping member is used to press the copper sheet against the side wall of the copper sheet placement position, and the clamping driving source is used to drive the clamping member to slide.

[0009] By adopting the above technical solution, first place the copper sheet on the copper sheet placement position, and then move the clamping member in a direction close to the copper sheet placement position to press the copper sheet against the side wall of the copper sheet placement position, so as to position and fix the copper sheet, and the clamping effect is good.

[0010] Optionally, a top plate is arranged on the fixture. The copper sheet placement position is formed between the top plate and the side wall of the fixture. An arc initiating sheet positioning groove for placing the arc initiating sheet is formed on the top plate. The clamping member presses the arc initiating sheet against the inner wall of the arc initiating sheet positioning groove and the copper sheet.

[0011] By adopting the above technical solution, inserting the copper sheet into the copper sheet placement position can achieve the preliminary positioning of the copper sheet, which is convenient for operation, and the top plate can support the arc initiating sheet. The arc initiating sheet positioning groove on the top plate positions the arc initiating sheet, and has a good positioning effect.

[0012] Optionally, the arc initiating sheet positioning groove penetrates through two adjacent sides of the top plate away from the rotation axis of the switching seat.

[0013] By adopting the above technical solution, the arc initiating sheet positioning groove has three openings, which is convenient for the operator to place the arc initiating sheet in the arc initiating sheet positioning groove.

[0014] Optionally, a reset assembly is arranged on the switching seat. The reset assembly includes a fixing plate, a guide rod and a reset elastic member. The fixing plate is arranged on the switching seat. The guide rod is arranged on the clamping member and is slidably arranged on the fixing plate. The reset elastic member is sleeved on the guide rod and is located between the fixing plate and the clamping member. The clamping driving source is used to drive the clamping member away from the copper sheet placement position, and the reset elastic member is used to drive the clamping member close to the copper sheet placement position, so that the clamping member presses against the copper sheet, the silver point and the arc initiating sheet.

[0015] By adopting the above technical solution, the clamping member is first driven away from the copper sheet placement position by the clamping driving source, and then the copper sheet is placed on the copper sheet placement position, the clamping driving source is returned to its position, and the reset component drives the clamping member close to the copper sheet placement position; by setting the reset component, a better clamping effect can be achieved, and the clamping driving source does not need to work all the time, saving energy. The guide rod guides the movement of the clamping member, making the movement of the clamping member more stable, and the reset elastic member is sleeved on the guide rod, which guides the expansion and contraction of the reset elastic member and saves space.

[0016] Optionally, the clamping member includes a copper sheet clamping portion and a resistance portion, the copper sheet clamping portion resists and slides on the reset elastic member, an avoidance cavity connected to the copper sheet placement position is formed between the top plate and the clamp, the copper sheet clamping portion passes through the avoidance cavity and enters the copper sheet placement position to press against the tail of the copper sheet, and the resistance portion presses against the silver point and the arc-starting sheet on the head of the copper sheet.

[0017] By adopting the above technical solution, the top plate is located between the copper sheet clamping part and the abutment part. The copper sheet clamping part abuts against the tail of the copper sheet. The abutment part presses the silver dot and the arc-starting sheet against the head of the copper sheet, which can better clamp the static contact as a whole and keep the clamping stable, preventing the static contact from rotating under the squeezing of the abutment part.

[0018] Optionally, the resistance part includes a fixed sleeve and a resistance rod, the fixed sleeve is connected to the copper sheet clamping part, the resistance rod is slidably arranged on the fixed sleeve, and the reset assembly also includes a damping elastic part arranged on the resistance rod, the damping elastic part resists against the fixed sleeve to press the resistance rod against the silver point and the arc-starting sheet on the copper sheet head.

[0019] By adopting the above technical solution, the resistance rod slides when pressing the silver point and the arc-starting piece, and the damping elastic part is deformed, and the silver point and the arc-starting piece are gradually pressed with force instead of instantaneously impacting the silver point and the arc-starting piece, thereby avoiding damage to the silver point and the arc-starting piece as much as possible, and the pressing effect is better. The damping elastic part plays a role of pre-tightening and resetting.

[0020] Optionally, the copper sheet placement position includes a copper sheet slot and a copper sheet fault-tolerant groove, the copper sheet slot is used for inserting the copper sheet, the copper sheet clamping portion and the resistance rod press the copper sheet against the inner wall of the copper sheet slot, the copper sheet fault-tolerant groove is formed between the copper sheet slot and the side wall of the top plate, and the copper sheet fault-tolerant groove is used for making way for workers to insert the copper sheet into the copper sheet slot.

[0021] By adopting the above technical solution, the size of the copper sheet placement position is larger than the size of the copper sheet tail, which makes it convenient to insert the copper sheet tail into the copper sheet placement position. The copper sheet clamping part and the abutment rod can press the copper sheet tightly until the copper sheet tail fits against the side wall of the copper sheet slot, which has a better positioning effect on the copper sheet.

[0022] Optionally, it further includes a positioning structure, which includes a positioning driving source and a copper sheet positioning seat. A copper sheet positioning groove is formed on the copper sheet positioning seat. The positioning driving source is used to drive the copper sheet positioning seat close to the copper sheet, and make the copper sheet inserted into the copper sheet positioning groove. A guiding inclined surface is formed on the inner wall of the copper sheet positioning groove. The guiding inclined surface is used to contact the copper sheet and guide the copper sheet to fit on the bottom wall of the copper sheet positioning groove. The relatively arranged guiding inclined surfaces clamp the copper sheet on the bottom wall of the copper sheet positioning groove.

[0023] By adopting the above technical solution, the inner wall of the copper sheet positioning groove is inclined, which can play a guiding role in the positioning of the copper sheet, so that the copper sheet gradually moves to fit with the bottom wall of the copper sheet positioning groove under the extrusion of the clamping member, and the guiding inclined surface clamps the copper sheet to realize automatic positioning correction and the fixation of the copper sheet.

[0024] A welding process for a static contact includes: placing the tail of the copper sheet in the copper sheet placement position, placing the silver point on the head of the copper sheet, inserting the arc striking piece into the arc striking piece positioning groove, lowering the driving shaft of the clamping driving source, and the reset elastic member driving the clamping member to tightly press against the copper sheet, silver point and arc striking piece. The positioning driving source drives the copper sheet positioning seat close to the copper sheet, and the head of the copper sheet passing through the copper sheet placement position is inserted into the copper sheet positioning groove; or the positioning driving source drives the copper sheet positioning seat close to the clamping member, places the tail of the copper sheet in the copper sheet placement position, inserts the head of the copper sheet passing through the copper sheet placement position into the copper sheet positioning groove, places the silver point on the head of the copper sheet, inserts the arc striking piece into the arc striking piece positioning groove, lowers the driving shaft of the clamping driving source, and the reset elastic member drives the clamping member to tightly press against the copper sheet, silver point and arc striking piece, so that the copper sheet fits with the side wall of the copper sheet positioning groove.

[0025] By adopting the above technical solution, it can achieve a good positioning effect on the static contact, realize automatic positioning correction, and can achieve a good clamping and fixing effect on the static contact, laying a good foundation for the subsequent welding process and improving the finished product rate.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. Welding and cooling the static contact through automated equipment, with high automation and improved production efficiency; 2. By setting the damping elastic member, damage to the silver point and the arc striking piece is avoided as much as possible, and the pressing effect is good. The damping elastic member plays a role of pre-tightening and resetting; 3. Through the cooperation of the positioning structure and the clamping mechanism, automatic positioning correction is realized and the fixation of the copper sheet is achieved. Description of the Drawings

[0027] Figure 1It is a structural schematic diagram of the static contact in this application.

[0028] Figure 2 It is a schematic diagram of the structure of this application.

[0029] Figure 3 It is a structural schematic diagram of the clamping mechanism in this application.

[0030] Figure 4 It is a schematic diagram of the structure of the clamp and the top plate in this application.

[0031] Figure 5 yes Figure 4 Side view of the clamp and top plate in this application.

[0032] Figure 6 It is a structural schematic diagram of the conflicting part in this application.

[0033] Figure 7 is along Figure 6 Sectional view of AA.

[0034] Figure 8 It is a structural schematic diagram of the welding mechanism and the clamping mechanism in this application.

[0035] Figure 9 It is a structural schematic diagram of the blanking assembly and the clamping mechanism in this application.

[0036] Figure 10 It is a schematic diagram of the structure of the cooling mechanism in the present application without the blanking component.

[0037] Figure 11 It is a schematic diagram of the structure of the cooling component in this application.

[0038] Description of the reference numerals: 1. Static contact; 11. Copper sheet; 111. Head of the copper sheet; 112. Tail of the copper sheet; 12. Silver point; 13. Arc ignition sheet; 2. Switching seat; 21. Mounting seat; 3. Clamping mechanism; 31. Fixture; 311. Placement position for the copper sheet; 312. Copper sheet slot; 313. Tolerance slot for the copper sheet; 32. Clamping driving source; 33. Clamping member; 331. Copper sheet clamping portion; 332. Contact portion; 333. Fixed sleeve; 334. Contact rod; 335. Slide hole; 34. Top plate; 341. Arc ignition sheet positioning groove; 35. Reset assembly; 351. Fixed plate; 352. Guide rod; 353. Reset elastic member; 354. Damping elastic member; 36. Avoidance cavity; 37. Connecting plate; 371. Connecting seat; 38. Transmission rod; 39. Active rod; 4. Welding mechanism; 41. Induction heater; 42. Brazing head; 5. Cooling mechanism; 51. Unloading assembly; 511. Claw; 512. Claw driving source; 513. Claw groove; 514. Translation driving source; 515. Moving guide rail; 52. Receiving seat; 521. Sliding groove; 522. Pushing guide structure; 53. Pushing driving source; 531. Connecting member; 532. Pushing block; 54. Cooling channel; 541. Partition member; 542. Cooling channel; 55. Cooling assembly; 551. Fan; 552. Water cooling circulation assembly; 553. Fan mounting plate; 56. Moving mechanism; 561. Moving guide structure; 562. Moving driving source; 6. Loading station; 7. Welding station; 8. Unloading station; 9. Positioning structure; 91. Positioning driving source; 92. Copper sheet positioning seat; 921. Copper sheet positioning groove; 922. Guiding inclined surface; 100. Frame. Detailed implementation manners

[0039] The following further elaborates on this application in conjunction with the attached Figure 1 - 11 drawings.

[0040] An embodiment of this application discloses a welding machine for static contacts of large busbars. Referring to Figure 2 the drawings, it includes a frame 100, a switching seat 2, a clamping mechanism 3, a welding mechanism 4, a cooling mechanism 5, a loading station 6, a welding station 7, and an unloading station 8. There are four clamping mechanisms 3 which are arranged on the switching seat 2, and the four clamping mechanisms 3 are evenly distributed around the rotation axis of the switching seat 2. The switching seat 2 is rotatably installed on the frame 100 to drive the clamping mechanism 3 to rotate among the loading station 6, the welding station 7, or the unloading station 8. The clamping mechanism 3, the welding mechanism 4, and the cooling mechanism 5 are all fixedly installed on the frame 100. The clamping mechanism 3 clamps the static contact 1 loaded at the loading station 6, the welding mechanism 4 performs welding on the static contact 1 at the welding station 7, and the cooling mechanism 5 cools the static contact 1 at the unloading station 8.

[0041] Referring to Figure 2 and Figure 3, the clamping mechanism 3 includes a fixture 31, a clamping drive source 32 and a clamping member 33. A plurality of mounting seats 21 corresponding to the clamping mechanism 3 are fixedly installed on the switching base 2, and the fixture 31 is fixedly installed on the mounting seat 21.

[0042] Referring to Figure 4 and Figure 5 , a top plate 34 is fixedly installed on the fixture 31. A copper sheet placement position 311 for accommodating the tail 112 of the copper sheet is formed between the top plate 34 and the upper end surface of the fixture 31. The copper sheet placement position 311 includes a copper sheet slot 312 and a copper sheet tolerance slot 313. The copper sheet slot 312 is adapted to the thickness dimension of the copper sheet 11 for the tail 112 of the copper sheet to be inserted. The copper sheet tolerance slot 313 is formed between the copper sheet slot 312 and the bottom wall of the top plate 34. The copper sheet tolerance slot 313 is used to provide a space for the worker to insert the copper sheet 11 into the copper sheet slot 312, that is, the vertical distance between the upper end surface and the lower end surface of the copper sheet placement position 311 is slightly larger than the thickness dimension of the tail 112 of the copper sheet.

[0043] Referring to Figure 3 and Figure 4 , an arc striking piece positioning groove 341 is formed on the top wall of the top plate 34. The arc striking piece positioning groove 341 extends horizontally in one direction and penetrates the top plate 34, that is, the arc striking piece positioning groove 341 has three openings, one upward opening and two side openings. The arc striking piece positioning groove 341 is used for placing the arc striking piece 13, and the side wall of the arc striking piece positioning groove 341 is in contact with the arc striking piece 13 to position the arc striking piece 13.

[0044] Referring to Figure 3 , the clamping member 33 is installed on the mounting seat 21 in a lifting and sliding manner, and the clamping member 33 is located above the fixture 31. The clamping drive source 32 drives the clamping member 33 to slide in a direction away from the copper sheet placement position 311. A reset assembly 35 is installed on the mounting seat 21. The reset assembly 35 is used to drive the clamping member 33 to lift and slide in a direction close to the copper sheet placement position 311. The reset assembly 35 includes a fixing plate 351, a guide rod 352 and a reset elastic member 353. The fixing plate 351 is fixedly installed on the mounting seat 21. A guide hole for the guide rod 352 to pass through is formed on the fixing plate 351. The guide rod 352 is slidably installed in the guide hole of the fixing plate 351. The reset elastic member 353 is sleeved on the guide rod 352 and is pressed between the lower end surface of the fixing plate 351 and the lower end of the guide rod 352. A connecting plate 37 is fixedly installed on the lower end of the guide rod 352. The clamping member 33 is fixedly installed on the connecting plate 37 and moves along with the guide rod 352. The reset elastic member 353 drives the clamping member 33 to approach the copper sheet placement position 311 so that the clamping member 33 presses against the copper sheet 11, the silver point 12 and the arc striking piece 13.

[0045] Referring to Figure 2 and Figure 3, a transmission rod 38 is fixedly mounted on the connecting plate 37, and the transmission rod 38 extends along the movement direction of the clamping member 33. The clamping driving source 32 is fixedly mounted on the frame 100, and the clamping driving source 32 is a cylinder. An active rod 39 corresponding to the transmission rod 38 is fixed on the driving rod of the clamping driving source 32. The clamping driving source 32 drives the active rod 39 to approach the transmission rod 38, and contacts the transmission rod 38 to drive the transmission rod 38 to move, so that the clamping member 33 is away from the fixture 31, and the copper sheet placement position 311 is vacated. In other embodiments, the clamping driving source 32 can be an electric push rod, a hydraulic cylinder, etc., and any method that can drive the clamping member 33 to move is acceptable.

[0046] Reference Figure 3 and Figure 5 The clamping member 33 includes a copper sheet clamping portion 331 and an abutting portion 332. The copper sheet clamping portion 331 is fixedly mounted on the transmission rod 38, and is plate-shaped. The width of the copper sheet clamping portion 331 matches the width of the copper sheet tail portion 112. An avoidance cavity 36 connected to the copper sheet placement position 311 is formed between the top plate 34 and the clamp 31. The copper sheet clamping portion 331 passes through the avoidance cavity 36 and enters the copper sheet placement position 311, and is pressed against the copper sheet tail portion 112, so that the copper sheet tail portion 112 fits the bottom wall of the copper sheet placement position 311.

[0047] Reference Figure 3 and Figure 6 and Figure 7 The abutment portion 332 includes a fixed sleeve 333 and an abutment rod 334, and the reset assembly 35 also includes a damping elastic member 354. A connecting seat 371 is fixedly mounted on the connecting plate 37, and the fixed sleeve 333 is fixedly mounted on the connecting seat 371. A sliding hole 335 is provided on both the fixed sleeve 333 and the connecting seat 371, and the abutment rod 334 is slidably mounted in the sliding hole 335. The damping elastic member 354 is pressed between the sliding hole 335 on the fixed sleeve 333 and the abutment rod 334. The damping elastic member 354 drives the abutment rod 334 to approach the copper sheet placement position 311, so as to press the copper sheet 11 against the bottom wall of the copper sheet placement position 311, and press the silver dot 12 and the arc-starting sheet 13 against the copper sheet head 111. The abutting portion 332 and the copper sheet clamping portion 331 are disposed on both sides of the top plate 34 to balance each other so that the clamping member 33 can stably clamp the copper sheet 11 , the silver dot 12 and the arc-starting sheet 13 .

[0048] Reference Figure 2 and Figure 3, a positioning structure 9 is also installed on the loading station 6. The positioning structure 9 includes a positioning driving source 91 and a copper sheet positioning seat 92. The copper sheet positioning seat 92 moves along the moving direction of the clamping member 33. A copper sheet positioning groove 921 is formed on the copper sheet positioning seat 92, and the copper sheet positioning groove 921 penetrates through the side wall of the copper sheet positioning seat 92 close to the rotation axis of the switching seat 2. A guiding inclined surface 922 is formed on the inner wall of the copper sheet positioning groove 921, so that the opening size of the copper sheet positioning groove 921 gradually decreases along the direction close to the frame 100. The guiding inclined surface 922 is used to cooperate with the abutting portion 332 to guide the copper sheet 11 to gradually move until it fits on the bottom wall of the copper sheet positioning groove 921. At this time, the bottom of the guiding inclined surface 922 clamps the copper sheet 11 on the bottom wall of the copper sheet positioning groove 921. The copper sheet positioning seat 92 cooperates with the fixture 31, and the bottom wall of the copper sheet positioning groove 921 and the fixture 31 clamp and fix the copper sheet 11, so that the entire bottom wall of the copper sheet 11 is supported.

[0049] Refer to Figure 2 and Figure 3 , the positioning driving source 91 is fixedly installed on the frame 100. The positioning driving source 91 is used to drive the copper sheet positioning seat 92 close to the copper sheet 11. The copper sheet positioning seat 92 and the fixture 31 are respectively located on the upper and lower sides of the copper sheet 11, and the copper sheet 11 is inserted into the copper sheet positioning groove 921. In this embodiment, the positioning driving source 91 is a cylinder, and the driving rod of the positioning driving source 91 is fixedly connected to the copper sheet positioning seat 92. In other embodiments, the positioning driving source 91 can adopt a hydraulic cylinder, an electric push rod, etc. Any method that can drive the copper sheet positioning seat 92 to move is acceptable.

[0050] Refer to Figure 8 , the welding mechanism 4 performs induction welding on the static contact 1. The welding mechanism 4 includes an induction heater 41 and a brazing head 42. The side wall of the brazing head 42 clamps and abuts against both sides of the static contact 1 in the width direction. The induction heater 41 provides a high-frequency electric field and heats the brazing head 42 through electromagnetic induction.

[0051] Refer to Figure 9 and Figure 10 , the cooling mechanism 5 includes a blanking component 51, a receiving seat 52, a pushing driving source 53, a cooling channel 54 and a cooling component 55. The blanking component 51 transfers the welded static contact 1 to the receiving seat 52. The blanking component 51 includes a jaw 511 and a jaw driving source 512. The jaw 511 moves in the up and down direction. A clamping groove 513 is formed on the jaw 511, and the clamping groove 513 is used to clamp and abut against the static contact 1. The jaw driving source 512 is used to drive the jaw 511 to move. In this embodiment, the jaw driving source 512 is a cylinder, and the driving rod of the jaw driving source 512 is fixedly connected to the jaw 511. In other embodiments, the jaw driving source 512 can adopt a hydraulic cylinder, an electric push rod, etc. Any method that can drive the jaw 511 to move is acceptable.

[0052] Reference Figure 9 And Figure 10 The blanking assembly 51 further includes a translation drive source 514 and a moving guide rail 515, and the moving guide rail 515 extends in the horizontal direction. The translation drive source 514 is fixedly installed on the moving guide rail 515, and the jaw drive source 512 is slidably installed on the moving guide rail 515. The translation drive source 514 drives the jaw drive source 512 to move along the moving guide rail 515 so as to move the jaws 511 to the receiving seat 52.

[0053] Reference Figure 10 In this embodiment, the pushing drive source 53 is a cylinder, and a connecting member 531 is fixedly connected to the movable rod of the pushing drive source 53. A sliding groove 521 is formed in the receiving seat 52, and the connecting member 531 slides along the sliding groove 521. A pushing block 532 is fixedly connected to the connecting member 531, and the pushing block 532 is used to abut against the static contact 1 and push the static contact 1 towards the cooling channel 54. In other embodiments, the pushing drive source 53 can also be a hydraulic cylinder, an electric push rod, etc., and any method capable of pushing the static contact 1 to move is acceptable. A pushing guiding structure 522 is fixedly installed on the receiving seat 52, and the pushing guiding structure 522 guides the movement of the static contact 1. The pushing guiding structure 522 extends along the driving direction of the pushing drive source 53. In this embodiment, the pushing guiding structure 522 is two guiding plates fixedly installed on the receiving seat 52. In other embodiments, the pushing guiding structure 522 can be a guiding groove formed in the receiving seat 52.

[0054] Reference Figure 10 A plurality of partition members 541 are fixedly installed on the cooling channel 54. The partition members 541 are square steel pipes, and the partition members 541 extend along the length direction of the cooling channel 54. Cooling channels 542 are formed between adjacent partition members 541, and the size of the cooling channels 542 is adapted to the size of the static contact 1.

[0055] Reference Figure 2 And Figure 10 The cooling mechanism 5 further includes a moving mechanism 56, and the moving mechanism 56 is used to drive the receiving seat 52 to move to correspond to different cooling channels 542. The moving mechanism 56 includes a moving guiding structure 561 and a moving drive source 562. The moving guiding structure 561 extends in the horizontal direction, and the moving drive source 562 drives the receiving seat 52 and the pushing drive source 53 to move along the moving guiding structure 561. In this embodiment, the moving drive source 562 is a stroke cylinder, and the moving guiding structure 561 is a sliding groove formed in the cylinder seat. In other embodiments, the moving guiding structure 561 can be a guide rail or a guiding plate installed on the frame 100, etc. In other embodiments, the moving drive source 562 can adopt a hydraulic cylinder, an electric push rod, etc., and any method capable of driving the receiving seat 52 and the pushing drive source 53 to move is acceptable.

[0056] Reference Figure 11 Figure 11 , the cooling assembly 55 includes a plurality of fans 551 and a water-cooling circulation assembly 552. A fan mounting plate 553 is fixedly installed on the cooling channel 54, and the plurality of fans 551 are fixedly installed on the fan mounting plate 553 along the length direction of the cooling channel 54.

[0057] The implementation principle of a large busbar static contact welding machine according to an embodiment of the present application is as follows: at the loading station 6, the operator places the tail 112 of the copper sheet in the copper sheet placement position 311, places the silver point 12 on the head 111 of the copper sheet, inserts the arc starting piece 13 into the arc starting piece positioning groove 341, the clamping drive source 32 drives the clamping member 33 to press against the copper sheet 11, the silver point 12 and the arc starting piece 13, and the positioning drive source 91 drives the copper sheet positioning seat 92 to approach the copper sheet 11, and the head 111 of the copper sheet passing through the copper sheet placement position 311 is inserted into the copper sheet positioning groove 921; or the positioning drive source 91 drives the copper sheet positioning seat 92 to approach the clamping member 33, places the tail 112 of the copper sheet in the copper sheet placement position 311, inserts the head 111 of the copper sheet passing through the copper sheet placement position 311 into the copper sheet positioning groove 921, places the silver point 12 on the head 111 of the copper sheet, inserts the arc starting piece 13 into the arc starting piece positioning groove 341, the drive shaft of the clamping drive source 32 descends, and the reset elastic member 353 drives the clamping member 33 to press against the copper sheet 11, the silver point 12 and the arc starting piece 13, so that the copper sheet 11 fits against the side wall of the copper sheet positioning groove 921, completing the clamping of the static contact 1. The switching seat 2 rotates, so that the clamping mechanism 3 rotates to the transition station, and the switching seat 2 rotates again, so that the clamping mechanism 3 rotates to the welding station 7, and the welding mechanism 4 performs induction welding on the static contact 1. After welding is completed, the switching seat 2 rotates, so that the clamping mechanism 3 rotates to the unloading station 8, the jaw drive source 512 drives the jaws 511 to move downward, so that the jaws 511 clamp the static contact 1. After clamping, the translation drive source 514 drives the jaws 511 to move, and transfers the static contact 1 on the jaws 511 to the receiving seat 52. The pushing drive source 53 pushes the static contact 1 onto one of the cooling channels 542 of the cooling channel 54, and the fans 551 and the water-cooling circulation assembly 552 cool the static contact 1. The pushing drive source 53 continuously pushes the static contact 1 onto this cooling channel 542, and the static contact 1 delivered later pushes the static contact 1 that has been delivered earlier to move. This cycle repeats until this cooling channel 542 is filled with static contacts 1. The moving drive source 562 drives the receiving seat 52 to move, so that the receiving seat 52 corresponds to the other cooling channels 542. This cycle repeats until all the cooling channels 542 are filled with static contacts 1.

[0058] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A static contact welding machine for large busbars, characterized in that: It includes a switching base (2), a clamping mechanism (3), a welding mechanism (4), a cooling mechanism (5), a loading station (6), a welding station (7) and an unloading station (8). A plurality of the clamping mechanisms (3) are provided and arranged on the switching base (2). The switching base (2) is rotatably arranged to drive the clamping mechanism (3) to rotate to the loading station (6), the welding station (7) or the unloading station (8). The clamping mechanism (3) is used for loading and clamping the static contact (1) at the loading station (6). The welding mechanism (4) is used for welding and processing the static contact (1) at the welding station (7). The cooling mechanism (5) is used for unloading and cooling the static contact (1) at the unloading station (8).

2. The static contact welding machine for large busbars according to claim 1, characterized in that: The clamping mechanism (3) includes a fixture (31), a clamping driving source (32) and a clamping member (33). The fixture (31) is arranged on the switching base (2). A copper sheet placement position (311) for placing the copper sheet (11) is formed on the fixture (31). The clamping member (33) is slidably arranged on the switching base (2) along the direction close to or away from the copper sheet placement position (311). The clamping member (33) is used for pressing the copper sheet (11) against the side wall of the copper sheet placement position (311). The clamping driving source (32) is used for driving the clamping member (33) to slide.

3. The static contact welding machine for large busbars according to claim 2, characterized in that: A top plate (34) is provided on the fixture (31). The copper sheet placement position (311) is formed between the top plate (34) and the side wall of the fixture (31). An arc striking piece positioning groove (341) for placing the arc striking piece (13) is formed on the top plate (34). The clamping member (33) presses the arc striking piece (13) against the inner wall of the arc striking piece positioning groove (341) and the copper sheet (11).

4. The static contact welding machine for large busbars according to claim 3, characterized in that: The arc striking piece positioning groove (341) penetrates through two adjacent sides of the top plate (34) away from the rotation axis of the switching base (2).

5. The static contact welding machine for large busbars according to claim 3, characterized in that: A reset assembly (35) is provided on the switching base (2). The reset assembly (35) includes a fixing plate (351), a guiding rod (352) and a reset elastic member (353). The fixing plate (351) is arranged on the switching base (2). The guiding rod (352) is arranged on the clamping member (33) and slidably arranged on the fixing plate (351). The reset elastic member (353) is sleeved on the guiding rod (352) and located between the fixing plate (351) and the clamping member (33). The clamping driving source (32) is used for driving the clamping member (33) away from the copper sheet placement position (311). The reset elastic member (353) is used for driving the clamping member (33) close to the copper sheet placement position (311) so that the clamping member (33) presses tightly against the copper sheet (11), the silver point (12) and the arc striking piece (13).

6. The static contact welding machine for large busbars according to claim 5, characterized in that: The clamping member (33) comprises a copper sheet clamping portion (331) and a resisting portion (332); the copper sheet clamping portion (331) resists and slides on the resetting elastic member (353); an avoidance cavity (36) communicating with the copper sheet placement position (311) is formed between the top plate (34) and the clamp (31); the copper sheet clamping portion (331) passes through the avoidance cavity (36) and enters the copper sheet placement position (311) to press against the copper sheet tail (112); and the resisting portion (332) presses against the silver point (12) and the arc-starting sheet (13) on the copper sheet head (111).

7. The static contact welding machine for large busbars according to claim 6, characterized in that: The abutment portion (332) comprises a fixing sleeve (333) and an abutment rod (334), wherein the fixing sleeve (333) is connected to the copper sheet clamping portion (331), and the abutment rod (334) is slidably disposed on the fixing sleeve (333). The reset assembly (35) further comprises a damping elastic member (354) disposed on the abutment rod (334), wherein the damping elastic member (354) abuts against the fixing sleeve (333) so as to press the abutment rod (334) against the silver dot (12) and the arc-starting sheet (13) on the copper sheet head (111).

8. The static contact welding machine for large busbars according to claim 7, characterized in that: The copper sheet placement position (311) comprises a copper sheet insertion slot (312) and a copper sheet fault tolerance slot (313); the copper sheet insertion slot (312) is used for inserting the copper sheet (11); the copper sheet clamping portion (331) and the abutment rod (334) press the copper sheet (11) against the inner wall of the copper sheet insertion slot (312); the copper sheet fault tolerance slot (313) is formed between the copper sheet insertion slot (312) and the side wall of the top plate (34); the copper sheet fault tolerance slot (313) is used for making way for a worker when inserting the copper sheet (11) into the copper sheet insertion slot (312).

9. The static contact welding machine for large busbars according to claim 5, characterized in that: The invention also comprises a positioning structure (9), the positioning structure (9) comprising a positioning drive source (91) and a copper sheet positioning seat (92), the copper sheet positioning seat (92) being provided with a copper sheet positioning groove (921), the positioning drive source (91) being used to drive the copper sheet positioning seat (92) to approach the copper sheet (11) and to insert the copper sheet (11) into the copper sheet positioning groove (921), a guiding inclined surface (922) being formed on the inner wall of the copper sheet positioning groove (921), the guiding inclined surface (922) being used to contact the copper sheet (11) and guide the copper sheet (11) to fit on the bottom wall of the copper sheet positioning groove (921), and the guiding inclined surfaces (922) arranged opposite to each other clamp the copper sheet (11) on the bottom wall of the copper sheet positioning groove (921).

10. A welding process for a static contact, using the large busbar static contact welding machine described in claim 9, characterized in that, include: Place the tail (112) of the copper sheet in the copper sheet placement position (311), place the silver point (12) on the head (111) of the copper sheet, insert the arc starting piece (13) into the arc starting piece positioning groove (341), lower the drive shaft of the clamping drive source (32), and the reset elastic member (353) drives the clamping member (33) to tightly press against the copper sheet (11), the silver point (12) and the arc starting piece (13). The positioning drive source (91) drives the copper sheet positioning seat (92) to approach the copper sheet (11), and the head (111) of the copper sheet passing through the copper sheet placement position (311) is inserted into the copper sheet positioning groove (921); or The positioning drive source (91) drives the copper sheet positioning seat (92) to approach the clamping member (33). Place the tail (112) of the copper sheet in the copper sheet placement position (311), insert the head (111) of the copper sheet passing through the copper sheet placement position (311) into the copper sheet positioning groove (921), place the silver point (12) on the head (111) of the copper sheet, insert the arc starting piece (13) into the arc starting piece positioning groove (341), lower the drive shaft of the clamping drive source (32), and the reset elastic member (353) drives the clamping member (33) to tightly press against the copper sheet (11), the silver point (12) and the arc starting piece (13), so that the copper sheet (11) is in contact with the side wall of the copper sheet positioning groove (921).

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