Copper bar pressure welding equipment for new energy motor stator coil and process of copper bar pressure welding equipment

Abstract

The invention relates to the technical field of welding, and discloses a copper bar pressure welding device and process for a new energy motor stator coil, and the copper bar pressure welding device comprises a cover body, a double-shaft motor, an adjusting roller, a sliding seat, a pair of overturning plates and a stator body. When welding operation needs to be carried out, a half gear and an adjusting roller are driven by a double-shaft motor to rotate, when the half gear and a full gear are not meshed, a V-shaped groove in the adjusting roller drives a top plate to do left-right reciprocating motion once at the moment, in the moving process of the top plate, the top plate drives a sliding base to move, and the sliding base drives a boss to move; at the moment, the ripping bar moves along the slope and drives the turnover plate to rotate, the turnover plate covers the copper bar, the ripping bar and the turnover plate are driven to approach the center through guiding of the clamping and pressing groove in the slope, and finally the copper bar is clamped and pressed downwards, so that tight connection between the copper bar and the copper bar seat is ensured, and the phenomenon of insufficient soldering possibly occurring in the later period is reduced; and the welding quality is improved.

Description

Technical Field

[0001] The present invention belongs to the field of welding technology, and in particular, relates to a copper bar pressure welding device and a process for a stator coil of a new energy motor. Background Art

[0002] With the rapid development of new energy vehicles and other fields, the demand for new energy motors is growing. As a key component of the motor, the performance of the motor stator coil directly affects the overall performance of the motor.

[0003] There are some problems with the existing stator coil welding process. During welding, the copper bar and the copper bar seat need to be fitted together before the welding operation can be performed. However, during the fitting process, it cannot be guaranteed that the copper bar and the copper bar seat, which are only overlapped by gravity, can be tightly connected together. Therefore, the welding quality may be unstable, and problems such as cold welding and uneven welds may easily occur, which will lead to increased resistance and severe heat generation during the operation of the motor, reduce the efficiency of the motor, and even affect the service life of the motor. After the welding is completed, the welding position needs to be changed. The overall operation is relatively complicated, which is not conducive to improving the welding efficiency.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: A copper bar pressure welding device for a new energy motor stator coil comprises a cover body, a double-shaft motor, an adjusting roller, a sliding seat, a pair of flip plates and a stator body.

[0006] A support platform is rotatably mounted on the surface of the cover; The dual-axis motor is installed inside the cover body, and the output end of one side of the dual-axis motor is connected to a half gear, the side wall of the half gear is meshed with a full gear, the full gear is connected to the support platform, and the diameter of the half gear is smaller than the diameter of the full gear; The adjusting roller is connected to the output shaft on the other side of the dual-axis motor, and a combination groove is provided on the adjusting roller, wherein the combination groove is formed by connecting a V-shaped groove and a reversing groove end to end, and the size of the central angle corresponding to the V-shaped groove is the same as the central angle corresponding to the position where no teeth are provided on the half gear, and a guide slider is slidably provided on the combination groove, and a top plate is installed on the guide slider; A pair of argon arc welding torch bodies are symmetrically mounted on the surface of the slide seat, a synchronous plate is mounted on the side wall of the slide seat, and the synchronous plate is connected to the top plate; A pry bar is installed at the rotation center of each flip plate, and the end of the pry bar is slidably connected to the boss installed on the slide seat, and a pair of parallel horizontal grooves are slidably arranged on the boss, and a slope is arranged on the side wall of the boss, and a pair of clamping and pressing grooves are arranged on the slope, and each clamping and pressing groove is connected with the corresponding horizontal groove. The pair of clamping and pressing grooves are in an inclined state, and the distance between the two clamping and pressing grooves close to one side of the boss is smaller than the distance at the other end, and a fixed and limited clamping shaft is movably arranged on the flip plate; A main shaft is installed on the stator body, and the main shaft is connected to the full gear. A plurality of pairs of copper bars are inserted around the stator body. A copper bar seat is installed on the support platform, and the copper bar seat is in contact with the plurality of pairs of copper bars. A pair of argon arc welding gun bodies and flip plates are located on both sides of the corresponding copper bars.

[0007] As a preferred embodiment of the present invention, a base is installed at the bottom of the cover body, a support pad is installed at the bottom of the base, a guide notch is opened at the top of the cover body, the guide notch is rotatably connected to the support platform, a vertical pole is installed at the bottom of the support platform, and the vertical pole is interconnected with the surface of the full gear.

[0008] As a preferred embodiment of the present invention, a side plate is installed on the inner side of the support platform, a fixed plate is installed on the outer side wall of the support platform, the copper bar seat is placed in a cavity between the side plate and the fixed plate, a locking bolt is rotatably provided on the surface of the side plate, and the end of the locking bolt is in contact with the side wall of the copper bar seat.

[0009] As a preferred embodiment of the present invention, the rotating shaft of the full gear is interconnected with the side wall of the cover body, a sleeve is installed on the top of the full gear, keyway shafts are installed at both ends of the main shaft, and the keyway shafts are movably inserted in the sleeve.

[0010] As a preferred embodiment of the present invention, a synchronous shaft is installed through the inside of the adjusting roller, one end of the synchronous shaft is connected to the output shaft of the dual-axis motor, the other end of the synchronous shaft is clamped with a bearing, and the outer wall of the bearing is clamped with a bearing seat, and the bearing seat is welded to the side wall of the cover body.

[0011] As a preferred embodiment of the present invention, the side wall of the top plate is slidably arranged in a through groove opened on the surface of the cover body, a pair of limit seats are installed in the inner cavity of the cover body, a limit rod is installed through the pair of limit seats, a sliding sleeve is slidably arranged on the surface of the limit rod, a limit spring is sleeved on the limit rod, one end of the limit spring is clamped on the limit seat, and the other end of the limit spring is clamped on the sliding sleeve, and the sliding sleeve is installed on the top plate.

[0012] As a preferred embodiment of the present invention, a fixed seat is installed on the sliding seat, a push rod is installed on the fixed seat, a argon arc welding gun body is installed on the push rod, and an argon gas delivery pipe is connected to the argon arc welding gun body. A guide rail is slidably arranged at the bottom of the sliding seat, and the guide rail is installed on the cover body.

[0013] As a preferred embodiment of the present invention, friction pads are installed on the relative surfaces of a pair of flip plates, and the friction pads are made of rubber. A positioning slider is rotatably installed at the end of the pry bar, and the positioning slider is slidably set on the clamping and pressing groove.

[0014] As a preferred embodiment of the present invention, a positioning bracket is installed on the clamping shaft, an arch bracket is installed on the positioning bracket, the arch bracket is installed on the cover body, a compression spring is sleeved on the clamping shaft, one end of the compression spring is clamped on the positioning bracket, and the other end is clamped on the flip plate, a limiting plate is installed at the end of the clamping shaft, and the diameter of the limiting plate is larger than the diameter of the clamping shaft.

[0015] As a preferred embodiment of the present invention, the pressure welding process of the copper bar pressure welding equipment of the stator coil of the new energy motor comprises the following steps: Step 1: Clean the copper busbar to remove surface oil and impurities in the oxide layer; Step 2: Insert the pre-treated copper bar in the specified position according to the design requirements of the stator body, and place the inserted workpiece inside the cover to ensure that the bottom of the copper bar and the copper bar seat fit each other; Step 3: Start the dual-axis motor, and drive the half gear and the adjusting roller to rotate through the dual-axis motor. When the half gear and the full gear are not meshed, the V-shaped groove on the adjusting roller drives the top plate to move back and forth once. During the movement of the top plate, the top plate drives the slide to move, and the slide drives the boss to move. At this time, the pry bar moves along the slope, and the pry bar drives the flip plate to rotate. The flip plate covers the copper bar and is guided by the clamping and pressing groove on the slope to drive the pry bar and the flip plate to approach the center, and finally clamps the copper bar and presses downward to ensure that the copper bar and the copper bar seat are tightly connected. As the top plate continues to move, the argon arc welding gun body is pushed to the connection between the copper bar and the copper bar seat, and then the welding operation is performed. After welding is completed, the reset effect is completed through the reverse operation of step 3; Step 4: When the half gear and the full gear are meshed, the top plate slides on the commutation slot, so the top plate is stationary at this time, but the half gear will drive the full gear to rotate, and the full gear will drive the stator body to rotate. Replace the copper bar to be welded, and repeat steps 3 and 4 to complete the pressure welding operation of the entire copper bar; Step 5: After the bottom copper bar is welded, change the upper and lower positions of the stator body to weld the top copper bar.

[0016] Compared with the prior art, the present invention has the following beneficial effects: When welding operation is required, the half gear and the adjusting roller are driven to rotate by the double-axis motor. When the half gear and the full gear are not meshed, the V-shaped groove on the adjusting roller drives the top plate to move back and forth once. During the movement of the top plate, the top plate drives the slide to move, and the slide drives the boss to move. At this time, the pry bar moves along the slope, and the pry bar drives the flip plate to rotate. The flip plate covers the copper bar and is guided by the clamping and pressing groove on the slope to drive the pry bar and the flip plate to approach the center. Finally, the copper bar is clamped and pressed downward to ensure that the copper bar and the copper bar seat are tightly connected, reducing the phenomenon of false soldering that may occur in the later stage, and improving The welding quality is improved, and as the top plate continues to move, the argon arc welding gun body is pushed to the connection between the copper bar and the copper bar seat, and then the welding operation is carried out. After welding is completed, the above steps are reversed to complete the reset effect. After resetting, the half gear will mesh with the full gear. At this time, the top plate slides on the reversing groove, so the top plate is stationary at this time, but the half gear will drive the full gear to rotate, and the full gear will drive the stator body to rotate, and the copper bar to be welded can be replaced. Then, the above structure can achieve the purpose of automatically changing the welding position, automatically clamping and squeezing, and automatically deepening the welding gun. The operation is simpler and helps to improve the welding efficiency.

[0017] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the attached picture: Figure 1 A schematic diagram of the three-dimensional structure of a copper bar welding device for a new energy motor stator coil; Figure 2 This is a cross-sectional view of the cover of a copper bar pressure welding device for a new energy motor stator coil; Figure 3 A schematic diagram of the partial structure of a copper bar welding device for the stator coil of a new energy motor Figure 1 ; Figure 4 A schematic diagram of the partial structure of a copper bar welding device for the stator coil of a new energy motor Figure 2 ; Figure 5 A schematic diagram of the partial structure of a copper bar welding device for the stator coil of a new energy motor Figure 3 ; Figure 6 A cross-sectional view of an arched support of a copper bar pressure welding device for a new energy motor stator coil; Figure 7 A copper bar pressure welding device for a new energy motor stator coil Figure 6 Enlarged view of point A in the middle; Figure 8A schematic diagram of the partial structure of a copper bar welding device for the stator coil of a new energy motor Figure 4 ; Fig. 9 A copper bar pressure welding device for a new energy motor stator coil Figure 8 Enlarged view of point B in the middle.

[0019] In the figure: 1. housing; 11. base; 111. support pad; 112. guide notch; 12. support platform; 121. side plate; 122. locking bolt; 123. fixing plate; 2. Double-axis motor; 21. Half gear; 211. Full gear; 212. Card sleeve; 213. Vertical pole; 3. Adjusting roller; 31. Synchronous shaft; 311. Bearing seat; 32. Combination groove; 321. V-shaped groove; 322. Reversing groove; 33. Guide slider; 331. Top plate; 332. Sliding sleeve; 333. Limit rod; 334. Limit seat; 335. Limit spring; 336. Through groove; 4. Sliding seat; 41. Fixed seat; 411. Mandrel; 412. Argon arc welding torch body; 413. Argon gas delivery pipe; 42. Synchronous plate; 421. Guide rail; 5. Flip plate; 51. Friction pad; 52. Pry bar; 521. Positioning slide block; 523. Clamping and pressing groove; 524. Horizontal groove; 525. Boss; 526. Slope; 53. Clamping shaft; 531. Limiting plate; 532. Compression spring; 533. Positioning bracket; 534. Arch bracket; 6. stator body; 61. copper bar; 611. copper bar seat; 62. main shaft; 621. keyway shaft. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0021] Embodiment 1: like Figures 1 to 9 As shown, a copper bar pressing welding device for a new energy motor stator coil includes a cover body 1, a dual-axis motor 2, an adjustment roller 3, a slide seat 4, a pair of flip plates 5 and a stator body 6.

[0022] A support platform 12 is rotatably mounted on the surface of the cover body 1; The dual-axis motor 2 is installed inside the cover 1, and the output end of one side of the dual-axis motor 2 is connected to a half gear 21, and the side wall of the half gear 21 is meshed with a full gear 211, and the full gear 211 is connected to the support platform 12, and the diameter of the half gear 21 is smaller than the diameter of the full gear 211; The adjusting roller 3 is connected to the output shaft on the other side of the dual-axis motor 2. A combination groove 32 is provided on the adjusting roller 3. The combination groove 32 is formed by connecting a V-shaped groove 321 and a reversing groove 322 end to end. The size of the central angle corresponding to the V-shaped groove 321 is the same as the central angle corresponding to the position where no teeth are provided on the half gear 21. A guide slider 33 is slidably provided on the combination groove 32, and a top plate 331 is installed on the guide slider 33. A pair of argon arc welding torch bodies 412 are symmetrically mounted on the surface of the slide 4, a synchronous plate 42 is mounted on the side wall of the slide 4, and the synchronous plate 42 is connected to the top plate 331; A pry bar 52 is installed at the rotation center of each flip plate 5, and the end of the pry bar 52 is slidably connected to a boss 525 installed on the slide seat 4. A pair of parallel horizontal grooves 524 are slidably arranged on the boss 525, and a slope 526 is arranged on the side wall of the boss 525. A pair of clamping and pressing grooves 523 are arranged on the slope 526, and each clamping and pressing groove 523 is connected to the corresponding horizontal groove 524. The pair of clamping and pressing grooves 523 are in an inclined state, and the two clamping and pressing grooves 52 The distance between the one side close to the boss 525 is smaller than the distance at the other end, and a fixed and limited clamping shaft 53 is movably provided on the flip plate 5; a main shaft 62 is installed on the stator body 6, and the main shaft 62 is connected to the full gear 211, and a plurality of pairs of copper bars 61 are inserted around the stator body 6, and a copper bar seat 611 is installed on the support platform 12, and the copper bar seat 611 is in contact with the plurality of pairs of copper bars 61, and a pair of argon arc welding gun bodies 412 and the flip plate 5 are located on both sides of the corresponding copper bars 61.

[0023] The half gear 21 and the adjusting roller 3 are driven to rotate by the dual-axis motor 2. When the half gear 21 and the full gear 211 are not meshed, the V-shaped groove 321 on the adjusting roller 3 drives the top plate 331 to move back and forth once. During the movement of the top plate 331, the top plate 331 drives the slide 4 to move, and the slide 4 drives the boss 525 to move. At this time, the pry bar 52 moves along the slope 526, and the pry bar 52 drives the flip plate 5 to rotate. The flip plate 5 covers the copper bar 61 and is guided by the clamping and pressing groove 523 on the slope 526, driving the pry bar 52 and the flip plate 5 to approach the center, and finally clamps the copper bar 61 and presses it downward to ensure that the copper bar 61 and the copper bar seat 611 are tightly connected, thereby reducing the phenomenon of cold soldering that may occur in the later stage. The welding quality is improved, and as the top plate 331 continues to move, the argon arc welding torch body 412 is pushed to the connection between the copper bar 61 and the copper bar seat 611, and then the welding operation is performed. After the welding is completed, the above steps are reversed to complete the reset effect. After the reset, the half gear 21 and the full gear 211 are meshed. At this time, the top plate 331 slides on the reversing groove 322, so the top plate 331 is stationary at this time, but the half gear 21 will drive the full gear 211 to rotate, and the full gear 211 drives the stator body 6 to rotate, and the copper bar 61 to be welded is replaced. Then, the above structure can achieve the purpose of automatically changing the welding position, automatically clamping and squeezing, and automatically deepening the welding gun, and the operation is simpler, which helps to improve the welding efficiency.

[0024] like Figures 1 to 9 As shown, in a specific embodiment, a base 11 is installed at the bottom of the cover body 1, and a support pad 111 is installed at the bottom of the base 11. The base 11 can ensure the stability of the cover body 1. A guide notch 112 is opened at the top of the cover body 1. The guide notch 112 is rotatably connected to the support platform 12. The guide notch 112 limits the support platform 12. A vertical rod 213 is installed at the bottom of the support platform 12. The vertical rod 213 is interconnected with the surface of the full gear 211. The full gear 211 can drive the support platform 12 to rotate through the vertical rod 213.

[0025] like Figures 1 to 9 As shown, further, a side plate 121 is installed on the inner side of the support platform 12, and a fixing plate 123 is installed on the outer wall of the support platform 12. The copper bar seat 611 is placed in a chamber between the side plate 121 and the fixing plate 123. A locking bolt 122 is rotatably provided on the surface of the side plate 121, and the end of the locking bolt 122 contacts the side wall of the copper bar seat 611. By rotating the locking bolt 122, the locking bolt 122 can be squeezed and contacted with the copper bar seat 611, thereby fixing the copper bar seat 611.

[0026] Embodiment 2: The difference between the above embodiment and this embodiment is that: Figures 1 to 9As shown, the rotating shaft of the full gear 211 is connected to the side wall of the cover body 1, a sleeve 212 is installed on the top of the full gear 211, and keyway shafts 621 are installed at both ends of the main shaft 62. The keyway shaft 621 is movably inserted into the sleeve 212. Through the clamping connection between the sleeve 212 and the keyway shaft 621, it can be ensured that the full gear 211 can drive the main shaft 62 to rotate.

[0027] like Figures 1 to 9 As shown, in a specific embodiment, a synchronous shaft 31 is installed inside the adjusting roller 3, one end of the synchronous shaft 31 is connected to the output shaft of the dual-axis motor 2, the other end of the synchronous shaft 31 is clamped with a bearing, and the outer wall of the bearing is clamped with a bearing seat 311, and the bearing seat 311 is welded to the side wall of the cover body 1. After the dual-axis motor 2 is started, one end of the dual-axis motor 2 can drive the half gear 21 to rotate, and the other end of the dual-axis motor 2 drives the synchronous shaft 31 to rotate. At this time, the synchronous shaft 31 rotates inside the bearing seat 311, and the bearing seat 311 is used to reduce the friction force. After the synchronous shaft 31 rotates, the synchronous shaft 31 can drive the adjusting roller 3 to rotate.

[0028] like Figures 1 to 9 As shown, further, the side wall of the top plate 331 is slidably arranged in the through groove 336 opened on the surface of the cover body 1, and a pair of limiting seats 334 are installed in the inner cavity of the cover body 1, and a limiting rod 333 is installed through the inside of the pair of limiting seats 334, and a sliding sleeve 332 is slidably arranged on the surface of the limiting rod 333, and a limiting spring 335 is sleeved on the limiting rod 333, one end of the limiting spring 335 is clamped on the limiting seat 334, and the other end of the limiting spring 335 is clamped on the sliding sleeve 332, and the sliding sleeve 332 is installed on the top plate 331. The sliding sleeve 332 inside the top plate 331 can slide on the limiting rod 333, at this time, the distance between the limiting rod 333 and the limiting seat 334 changes, and then the limiting spring 335 can be compressed, and the limiting spring 335 is convenient for the later reset operation.

[0029] Embodiment 3: The difference between the above embodiment and this embodiment is that: Figures 1 to 9 As shown, a fixed seat 41 is installed on the slide 4, a push rod 411 is installed on the fixed seat 41, a argon arc welding gun body 412 is installed on the push rod 411, and an argon gas delivery pipe 413 is connected to the argon arc welding gun body 412, and a guide rail 421 is slidably provided at the bottom of the slide 4, and the guide rail 421 is installed on the cover body 1. The slide 4 slides along the guide rail 421, and the fixed seat 41 on the slide 4 extends the argon arc welding gun body 412 into a specified position through the push rod 411, and the argon arc welding gun body 412 can be started to complete the welding operation.

[0030] like Figures 1 to 9As shown, in a specific embodiment, a pair of flip plates 5 are mounted with friction pads 51 on opposite surfaces, and the friction pads 51 are made of rubber. A positioning slider 521 is rotatably mounted on the end of the pry bar 52, and the positioning slider 521 is slidably arranged on the clamping and pressing groove 523. A positioning bracket 533 is mounted on the clamping shaft 53, and an arch bracket 534 is mounted on the positioning bracket 533. The arch bracket 534 is mounted on the cover body 1. A compression spring 532 is sleeved on the clamping shaft 53, and one end of the compression spring 532 is clamped on the positioning bracket 533, and the other end is clamped on the flip plate 5. A limiting plate 531 is mounted on the end of the clamping shaft 53, and the diameter of the limiting plate 531 is larger than the diameter of the clamping shaft 53. When the slide 4 slides, the position of the boss 525 on the slide 4 changes, and the pry bar 52 can slide on the slope 526 on the surface of the boss 525. The pry bar 52 rotates as a whole through the guidance of the slope 526, and the pry bar 52 drives the flip plate 5 to rotate around the clamping shaft 53, and finally the friction pad 51 at the end of the flip plate 5 can be moved to the corresponding copper bar 61. When the pry bar 52 slides on the slope 526, the positioning slider 521 installed on the pry bar 52 slides synchronously at this time, and the positioning slider 521 moves along the clamping and pressing groove 523, thereby driving the two pry bars 52 to approach the center, and then the end of the pry bar 52 slides inside the clamping shaft 53 at this time, squeezing the internal compression spring 532, and the compression spring 532 facilitates the later reset, and the limit plate 531 at the end of the clamping shaft 53 mainly serves the purpose of preventing falling off. When the pry bars 52 are close to each other, the pry bars 52 can drive the flip plate 5 and the friction pad 51 to slide toward the center. Through the movement trajectory of the flip plate 5 in two directions, the flip plate 5 can clamp the corresponding copper busbar 61, and squeeze downward after clamping, so that the copper busbar 61 and the copper busbar seat 611 can be kept in a tight state.

[0031] The present invention also discloses a pressure welding process of a copper bar pressure welding device for a stator coil of a new energy motor, the steps of which are as follows: Step 1: Clean the copper busbar 61 to remove surface oil stains and impurities in the oxide layer; Step 2: Insert the pre-treated copper bar 61 at the specified position according to the design requirements of the stator body 6, and place the inserted workpiece inside the cover 1 to ensure that the bottom of the copper bar 61 and the copper bar seat 611 fit each other; Step 3: Start the double-axis motor 2, and drive the half gear 21 and the adjusting roller 3 to rotate through the double-axis motor 2. When the half gear 21 and the full gear 211 are not meshed, the V-shaped groove 321 on the adjusting roller 3 drives the top plate 331 to move back and forth once. During the movement of the top plate 331, the top plate 331 drives the slide 4 to move, and the slide 4 drives the boss 525 to move. At this time, the pry bar 52 moves along the slope 526, and the pry bar 52 drives the flip plate 5 to rotate, and the flip plate 5 Covering the copper bar 61, and guided by the clamping and pressing groove 523 on the slope 526, the pry bar 52 and the flip plate 5 are driven to approach the center, and finally the copper bar 61 is clamped and pressed downward to ensure that the copper bar 61 and the copper bar seat 611 are tightly connected. As the top plate 331 continues to move, the argon arc welding torch body 412 is pushed to the connection between the copper bar 61 and the copper bar seat 611, and then the welding operation is performed. After the welding is completed, the resetting effect is completed through the reverse operation of step three; Step 4: When the half gear 21 and the full gear 211 are meshed, the top plate 331 slides on the reversing groove 322, so the top plate 331 is stationary at this time, but the half gear 21 drives the full gear 211 to rotate, and the full gear 211 drives the stator body 6 to rotate, and the copper bar 61 to be welded is replaced, and the operations of steps 3 and 4 are repeated to complete the pressure welding operation of the entire copper bar 61; Step 5: After the bottom copper bar 61 is welded, the stator body 6 is changed up and down to weld the top copper bar 61 .

[0032] The implementation principle of the copper bar pressure welding device and process of the stator coil of a new energy motor in this embodiment is as follows: First, the operator cleans the copper busbar 61 to remove surface oil and oxide layer impurities, then plugs the pretreated copper busbar 61 into the specified position according to the design requirements of the stator body 6, and places the plugged workpiece inside the cover 1 to ensure that the bottom of the copper busbar 61 and the copper busbar seat 611 fit each other.

[0033] Then the operator needs to start the dual-axis motor 2. At this time, one end of the dual-axis motor 2 can drive the half gear 21 to rotate, and the other end of the dual-axis motor 2 drives the synchronous shaft 31 to rotate. At this time, the synchronous shaft 31 rotates inside the bearing seat 311, and the bearing seat 311 is used to reduce the friction. After the synchronous shaft 31 rotates, the synchronous shaft 31 can drive the adjusting roller 3 to rotate.

[0034] When the half gear 21 rotates and the full gear 211 is not engaged, the V-groove 321 on the adjusting roller 3 is slidably connected to the guide slider 33, and the top plate 331 on the guide slider 33 slides inside the through groove 336 to limit the position. Therefore, at this stage, through the guiding effect of the V-groove 321, the top plate 331 can slide back and forth once.

[0035] The sliding sleeve 332 inside the top plate 331 can slide on the limiting rod 333. At this time, the distance between the limiting rod 333 and the limiting seat 334 changes, and the limiting spring 335 can be compressed, which facilitates the subsequent resetting operation through the limiting spring 335.

[0036] When the top plate 331 moves, the top plate 331 can drive the slide seat 4 to slide back and forth as a whole.

[0037] When the slide 4 slides, the position of the boss 525 on the slide 4 changes. At this time, the pry bar 52 can slide on the slope 526 on the surface of the boss 525. Guided by the slope 526, the pry bar 52 rotates as a whole. The pry bar 52 drives the flip plate 5 to rotate around the clamping shaft 53, and finally the friction pad 51 at the end of the flip plate 5 can be moved to the two sides of the corresponding copper busbar 61.

[0038] When the pry bar 52 slides on the slope 526, the positioning slider 521 installed on the pry bar 52 slides synchronously at this time, and the positioning slider 521 moves along the clamping and pressing groove 523, thereby driving the two pry bars 52 to approach the center, and then the end of the pry bar 52 slides inside the clamping shaft 53 at this time, squeezing the internal compression spring 532, and the compression spring 532 facilitates the later reset, and the limit plate 531 at the end of the clamping shaft 53 mainly serves the purpose of preventing falling off. When the pry bars 52 are close to each other, the pry bar 52 can drive the flip plate 5 and the friction pad 51 to slide toward the center. Through the movement track of the flip plate 5 in two directions, the flip plate 5 can clamp the corresponding copper bar 61, and squeeze downward after clamping, so that the copper bar 61 and the copper bar seat 611 can be kept in a tight state.

[0039] Finally, the pry bar 52 slides to the upper surface of the boss 525, and the pry bar 52 stops moving, but the slide 4 is still sliding. The slide 4 slides along the guide rail 421, and the fixed seat 41 on the slide 4 extends the argon arc welding gun body 412 into the specified position through the push rod 411. Starting the argon arc welding gun body 412 can complete the welding operation.

[0040] When the V-shaped groove 321 and the top plate 331 slide, the top plate 331 reciprocates left and right, so when moving in the reverse direction, the above structure returns to the initial state and will not interfere with the rotational movement of the stator body 6.

[0041] When the half gear 21 rotates to a certain extent, the half gear 21 will mesh with the full gear 211, and the top plate 331 will slide with the reversing groove 322, so the top plate 331 is stationary.

[0042] The half gear 21 will drive the full gear 211 to rotate, and the full gear 211 will rotate a small angle, wherein the rotation angle can ensure that the next copper bar can be moved to the welding position. The above structure can achieve the purpose of automatically changing the welding position, automatically clamping and squeezing, and automatically deepening the welding gun, which is simpler to operate and helps to improve welding efficiency.

Claims

1. A copper bar welding device for stator coils of new energy motors, characterized in that: include: A cover body (1), wherein a support platform (12) is rotatably mounted on the surface of the cover body (1); A dual-axis motor (2), the dual-axis motor (2) being mounted inside the cover body (1), and an output end on one side of the dual-axis motor (2) being connected to a half gear (21), a full gear (211) being meshedly provided on a side wall of the half gear (21), the full gear (211) being interconnected with a support platform (12), and a diameter of the half gear (21) being smaller than a diameter of the full gear (211); an adjusting roller (3), the adjusting roller (3) being connected to the output shaft on the other side of the dual-axis motor (2), the adjusting roller (3) being provided with a combination groove (32), the combination groove (32) being formed by connecting a V-shaped groove (321) and a reversing groove (322) end to end, the center angle corresponding to the V-shaped groove (321) being the same as the center angle corresponding to a position on the half gear (21) where no teeth are provided, a guide slider (33) being slidably provided on the combination groove (32), and a top plate (331) being mounted on the guide slider (33); A slide seat (4), a pair of argon arc welding gun bodies (412) being symmetrically mounted on the surface of the slide seat (4), a synchronizing plate (42) being mounted on the side wall of the slide seat (4), and the synchronizing plate (42) and the top plate (331) being connected to each other; A pair of flip plates (5), each of which has a pry bar (52) mounted at its rotation center, the end of the pry bar (52) being slidably connected to a boss (525) mounted on the slide seat (4), a pair of mutually parallel horizontal grooves (524) being slidably arranged on the boss (525), a slope (526) being arranged on the side wall of the boss (525), a pair of clamping and pressing grooves (523) being arranged on the slope (526), ​​each clamping and pressing groove (523) being communicated with the corresponding horizontal groove (524), the pair of clamping and pressing grooves (523) being in an inclined state, and the distance between the two clamping and pressing grooves (523) on one side close to the boss (525) being smaller than the distance between the other ends, and a fixed and limited clamping shaft (53) being movably arranged on the flip plate (5); A stator body (6), a main shaft (62) is mounted on the stator body (6), the main shaft (62) and the full gear (211) are connected to each other, a plurality of pairs of copper bars (61) are plugged around the stator body (6), a copper bar seat (611) is mounted on the support platform (12), the copper bar seat (611) is in contact with the plurality of pairs of copper bars (61), and a pair of argon arc welding gun bodies (412) and flip plates (5) are located on both sides of the corresponding copper bars (61).

2. The copper bar welding equipment for the stator coil of a new energy motor according to claim 1 is characterized in that: A base (11) is installed at the bottom of the cover body (1), a support pad (111) is installed at the bottom of the base (11), a guide notch (112) is opened at the top of the cover body (1), the guide notch (112) is rotatably connected to the support platform (12), a vertical rod (213) is installed at the bottom of the support platform (12), and the vertical rod (213) is connected to the surface of the full gear (211) with each other.

3. The copper bar welding equipment for the stator coil of a new energy motor according to claim 1 is characterized in that: A side plate (121) is installed on the inner side of the support platform (12), and a fixing plate (123) is installed on the outer side wall of the support platform (12). The copper bar seat (611) is placed in a chamber between the side plate (121) and the fixing plate (123). A locking bolt (122) is rotatably provided on the surface of the side plate (121), and the end of the locking bolt (122) contacts the side wall of the copper bar seat (611).

4. The copper bar welding equipment for the stator coil of a new energy motor according to claim 1 is characterized in that: The rotating shaft of the full gear (211) is connected to the side wall of the cover body (1), a clamping sleeve (212) is installed on the top of the full gear (211), keyway shafts (621) are installed at both ends of the main shaft (62), and the keyway shafts (621) are movably inserted into the inside of the clamping sleeve (212).

5. The copper bar welding equipment for the stator coil of a new energy motor according to claim 1 is characterized in that: A synchronous shaft (31) is installed through the interior of the adjusting roller (3); one end of the synchronous shaft (31) is connected to the output shaft of the dual-shaft motor (2); a bearing is clamped on the other end of the synchronous shaft (31); a bearing seat (311) is clamped on the outer wall of the bearing; and the bearing seat (311) is welded to the side wall of the cover body (1).

6. The copper bar welding equipment for the stator coil of a new energy motor according to claim 1 is characterized in that: The side wall of the top plate (331) is slidably arranged in a through groove (336) provided on the surface of the cover body (1); a pair of limit seats (334) are installed in the inner cavity of the cover body (1); a limit rod (333) is installed through the inside of the pair of limit seats (334); a sliding sleeve (332) is slidably arranged on the surface of the limit rod (333); a limit spring (335) is sleeved on the limit rod (333); one end of the limit spring (335) is clamped on the limit seat (334); the other end of the limit spring (335) is clamped on the sliding sleeve (332); and the sliding sleeve (332) is installed on the top plate (331).

7. The copper bar welding equipment for the stator coil of a new energy motor according to claim 1 is characterized in that: A fixed seat (41) is mounted on the slide seat (4), a push rod (411) is mounted on the fixed seat (41), an argon arc welding gun body (412) is mounted on the push rod (411), and an argon gas delivery pipe (413) is connected to the argon arc welding gun body (412), and a guide rail (421) is slidably provided at the bottom of the slide seat (4), and the guide rail (421) is mounted on the cover body (1).

8. The copper bar welding equipment for the stator coil of a new energy motor according to claim 1 is characterized in that: A pair of friction pads (51) are mounted on opposite surfaces of the flip plates (5), and the friction pads (51) are made of rubber. A positioning slider (521) is rotatably mounted on the end of the pry bar (52), and the positioning slider (521) is slidably disposed on the clamping and pressing groove (523).

9. The copper bar welding equipment for the stator coil of a new energy motor according to claim 1 is characterized in that: A positioning bracket (533) is mounted on the clamping shaft (53), an arch bracket (534) is mounted on the positioning bracket (533), and the arch bracket (534) is mounted on the cover body (1). A compression spring (532) is sleeved on the clamping shaft (53), one end of the compression spring (532) is clamped on the positioning bracket (533), and the other end is clamped on the flip plate (5). A limiting plate (531) is mounted on the end of the clamping shaft (53), and the diameter of the limiting plate (531) is greater than the diameter of the clamping shaft (53).

10. A copper bar pressure welding process for a new energy motor stator coil, characterized in that: The copper bar welding device for the stator coil of a new energy motor as described in any one of claims 1 to 9, the welding process of the copper bar welding device for the stator coil of a new energy motor comprises the following steps: Step 1: Clean the copper busbar (61) to remove surface oil stains and impurities in the oxide layer; Step 2: plugging the pre-treated copper bar (61) into a designated position according to the design requirements of the stator body (6), and placing the plugged workpiece inside the cover (1), ensuring that the bottom of the copper bar (61) and the copper bar seat (611) fit each other; Step 3: Start the double-axis motor (2), and drive the half gear (21) and the adjusting roller (3) to rotate through the double-axis motor (2). When the half gear (21) and the full gear (211) are not meshed, the V-shaped groove (321) on the adjusting roller (3) drives the top plate (331) to move back and forth once. During the movement of the top plate (331), the top plate (331) drives the slide seat (4) to move, and the slide seat (4) drives the boss (525) to move. At this time, the pry bar (52) moves along the slope (526), ​​and the pry bar (52) drives the flip plate (5) to rotate. , the flip plate (5) covers the copper bar (61), and is guided by the clamping and pressing groove (523) on the slope (526), ​​driving the pry bar (52) and the flip plate (5) to approach the center, and finally clamps the copper bar (61) and presses downward to ensure that the copper bar (61) and the copper bar seat (611) are tightly connected. As the top plate (331) continues to move, the argon arc welding gun body (412) is pushed to the connection between the copper bar (61) and the copper bar seat (611), and then the welding operation is carried out. After the welding is completed, the resetting effect is completed by the reverse operation of step three; Step 4: When the half gear (21) and the full gear (211) are meshed, the top plate (331) slides on the reversing groove (322), so the top plate (331) is stationary at this time, but the half gear (21) drives the full gear (211) to rotate, and the full gear (211) drives the stator body (6) to rotate, and the copper bar (61) to be welded is replaced, and the operations of steps 3 and 4 are repeated to complete the pressure welding operation of the entire copper bar (61); Step 5: After the bottom copper bar (61) is welded, the stator body (6) is changed up and down to perform welding on the top copper bar (61).

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