Multi-station annular busbar resistance welding machine

Abstract

The invention provides a multi-station annular busbar resistance welding machine which comprises a welding machine assembly which comprises a supporting frame, a welding machine body is fixedly installed at the top of the supporting frame, a lower connecting base is fixedly installed at the bottom of one side of the welding machine body, and a vertical lower welding column is fixedly installed on the lower connecting base; a first vertical driving rod is fixedly installed at the top of one side of the welding machine body, an upper connecting base is fixedly installed at the bottom of the driving rod, and an upper welding column capable of being attached to the top of the lower welding column is fixedly installed on the upper connecting base. An existing mode that a busbar assembly and a wiring board are held by hands respectively and a connecting board of the busbar assembly is attached to the wiring board is replaced, the positioning precision is improved, the welding precision is improved, and the product quality is improved; the transverse and longitudinal stretching detection effect on the welding position between the wiring board and the connecting board is achieved, so that subsequent welding strength detection between the wiring board and the connecting board is not needed, and the machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding machine, in particular to a multi-station ring busbar resistance welding machine. BACKGROUND

[0002] The ring busbar resistance welding machine is a special device for welding the electrical terminal board to the ring busbar connecting plate. Its working principle is usually to apply pressure to the overlapped terminal board and connecting plate by the upper and lower electrodes (upper and lower welding columns) and pass a large current, and use the joule heat generated by the contact resistance to locally melt the metal, thereby forming a firm welding point. This welding method has high efficiency and small deformation, and is widely used in the field of busbar connection of low-voltage electrical appliances, distribution boxes, new energy automobile battery packs, etc.

[0003] In the prior art, the processing flow of the ring busbar resistance welding machine usually includes three main links: feeding positioning, welding, and discharging. In the positioning stage, the ring busbar is usually fixed on the welding station by manual assistance, so that the connecting plate on the busbar is aligned with the lower welding column of the welding machine; and the terminal board is placed above the connecting plate by hand, and after adjusting the position, it is attached to the connecting plate; the upper and lower welding columns of the welding machine body pass through the current, and the heat generated by the contact surface resistance is used to complete the hot melting welding. Although this method can position and weld the terminal board and the connecting plate, it still has the following defects in actual use:

[0004] 1. The method of manually holding the busbar assembly and the terminal board respectively to attach the connecting plate of the busbar assembly to the terminal board is prone to offset between the connecting plate and the terminal board, resulting in offset between the connecting plate and the terminal board, thereby reducing the welding precision;

[0005] 2. After welding, the welded busbar assembly needs to be transferred to another station to detect the strength of the welding point by using a tensile testing device, thereby reducing the processing effect. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides a multi-station ring busbar resistance welding machine, which solves the problems mentioned in the background art.

[0007] To achieve the above purpose, the present application realizes the following technical solutions:

[0008] The multi-station ring busbar resistance welding machine comprises:

[0009] The welding machine assembly comprises a support frame, a welding machine body fixedly installed on the top of the support frame, a lower connecting seat fixedly installed on the bottom of one side of the welding machine body, a lower welding column in a vertical shape fixedly installed on the lower connecting seat, a driving rod I in a vertical shape fixedly installed on the top of one side of the welding machine body, an upper connecting seat fixedly installed on the bottom of the driving rod, and an upper welding column fixedly installed on the upper connecting seat and capable of being attached to the top of the lower welding column.

[0010] The positioning assembly I comprises a fixed frame fixedly installed on the support frame and located in front of the lower connecting seat, a rotating rod in a vertical shape rotatably installed on the fixed frame, a positioning bottom plate fixedly installed on the top of the rotating rod, an adjusting member for driving the rotating rod to rotate or stop rotating, a positioning member installed on the top of the positioning bottom plate, and a pressing member installed on the top of the positioning bottom plate and inside the positioning member.

[0011] The busbar assembly comprises a ring-shaped busbar, and three connecting plates arranged on the outer wall of the ring-shaped busbar and electrically connected to the ring-shaped busbar.

[0012] The mounting assembly comprises a mounting frame fixedly installed on the lower connecting seat and away from the fixed frame, and a mounting seat installed on the top of the mounting frame.

[0013] The positioning assembly II comprises a limiting member I and a limiting member II installed on the top of the mounting seat, and a wiring plate arranged between the limiting member I and the limiting member II. The longitudinal section of the wiring plate is in an L shape. One end of the wiring plate is in a horizontal shape and capable of being attached to the top of the connecting plate, and the other end of the wiring plate is provided with a positioning hole in a horizontal shape. The limiting member I is provided with a positioning member for positioning the wiring plate.

[0014] In the welding state:

[0015] The ring-shaped busbar is arranged on the top of the positioning bottom plate, the positioning member positions the ring-shaped busbar, and the pressing member presses the top of the ring-shaped busbar and the side close to the plurality of connecting plates, so that one of the connecting plates is located directly above the lower welding column.

[0016] The wiring plate is arranged between the limiting member I and the limiting member II to limit the wiring plate through the limiting member I and the limiting member II. The positioning member penetrates through the positioning hole to position the wiring plate, so that one end of the wiring plate is attached to the connecting plate located directly above the lower welding column.

[0017] When the welding is completed:

[0018] The limiting member II acts to detect the welding strength of the wiring plate and the connecting plate, and unlock the positioning member.

[0019] Further, the fixed frame is slidingly installed on the top of the support frame along the lower connecting seat, and an adjusting rod is threadedly connected to the fixed frame and rotatably installed on the support frame. The adjusting member comprises a worm gear coaxially fixed to the rotating rod, and a worm rod rotatably installed on the fixed frame and engaged with the worm gear.

[0020] The positioning component includes symmetrically slidingly mounted abutment blocks on the top of the positioning base plate, and a horizontally oriented bidirectional threaded rod is rotatably mounted on the positioning base plate, with the bidirectional threaded rod threadedly connected to both abutment blocks.

[0021] Furthermore: the pressing component includes a fixed plate fixedly installed on the top of the positioning base plate and located between the opposite sides of the two abutting blocks; a pressing plate is hinged to the top of the positioning base plate and on the side of the fixed plate near the lower welding column; pressing rods are hinged to both sides of the pressing plate; the free ends of the pressing plate and the two pressing rods can abut against the top of the annular row; a driving rod is threaded through the fixed plate; the bottom of the driving rod is inclined along the direction of the pressing plate; a hinge block is hinged to the top of the pressing plate; and the bottom of the driving rod is rotatably connected to the hinge block.

[0022] Furthermore: the limiting component includes a guide rail, a moving block, and a support plate. The guide rail is located on the top of the mounting base and on the side of the lower welding column away from the fixed frame. The moving block is horizontally slidably mounted on the top of the guide rail along the direction of the lower welding column. The support plate is fixedly mounted on the side of the moving block near the lower welding column. An electric slider connected to the moving block is fixedly mounted on the guide rail. The positioning component is mounted on the side of the moving block near the lower welding column and above the support plate.

[0023] Furthermore: the positioning component includes a horizontally oriented positioning post fixedly installed on one side of the movable block and located above the tray. When the bottom of the wiring plate is in contact with the top of the tray, the positioning post can move through the positioning hole. The outer side wall of the positioning post is symmetrically provided with receiving grooves. Multiple horizontally oriented connecting springs are fixedly installed on the positioning post and located in the two receiving grooves. The ends of the multiple connecting springs are fixedly installed with snap-fit ​​blocks extending to the outside of the positioning post. The cross-section between the snap-fit ​​blocks and the inner side wall of the receiving grooves is in contact. The end of the snap-fit ​​block extending to the outside of the positioning post is inclined into the receiving groove in a direction away from the movable block. When the multiple connecting springs are in their natural state, the end of the snap-fit ​​block away from the movable block is hidden in the receiving groove.

[0024] Furthermore: The limiting component two includes a telescopic rod one, a horizontal plate one, a spring telescopic rod, a horizontal plate two, a pressure sensor one, and a contact plate. A vertically oriented telescopic rod one is symmetrically fixedly installed on the top of the mounting base, on the side of the guide rail near the lower welding column. A horizontal plate one is fixedly installed on the top of the two telescopic rods one. A drive rod two connected to the horizontal plate one is fixedly installed on the top of the mounting base. A vertically oriented spring telescopic rod is symmetrically fixedly installed on the top of the horizontal plate one. A horizontal plate two is fixedly installed on the top of the two spring telescopic rods. A pressure sensor one, in contact with the bottom of the horizontal plate two, is fixedly installed on the top of the horizontal plate one. A contact plate is fixedly installed on the top of the horizontal plate one. A mounting hole is provided on the contact plate on the side of the positioning column away from the moving block. An unlocking component acting on the two locking blocks is installed on the contact plate within the mounting hole, which is used to hide both locking blocks within the receiving groove.

[0025] Furthermore: the unlocking component includes a horizontal sliding rod fixedly installed inside the mounting hole, and unlocking plates that can abut against the locking block are symmetrically slidably installed outside the sliding rod and on both sides of the positioning post. A sliding block is slidably installed on the bottom wall of the mounting hole along the direction of the positioning post. A drive rod three connected to the sliding block is fixedly installed on the bottom wall of the mounting hole. Hinged rods are hinged on both sides of the sliding block. The free ends of the two hinged rods are respectively hinged to the sides of the two unlocking plates that are close to each other.

[0026] Furthermore: the movable block includes a lower connecting block slidably mounted on the top of the guide rail, an upper connecting block slidably mounted on the top of the lower connecting block, the upper connecting block sliding on the lower connecting block in the same direction as the lower connecting block sliding on the guide rail, a groove is provided at the bottom of the upper connecting block, a snap-fit ​​hole is provided at the top of the lower connecting block below the groove, a vertical drive rod four is fixedly mounted on the top plate inside the groove, the piston rod of the drive rod four can be inserted into the snap-fit ​​hole and snap-fit ​​with the lower connecting block, a return spring connected to the upper connecting block is fixedly mounted on the top of the lower connecting block on the side away from the lower welding column of the upper connecting block, a support plate is fixedly mounted on the top position of the side wall of the lower connecting block, and a pressure sensor two that can abut against the positioning column is fixedly mounted on the side of the sliding block near the positioning column;

[0027] The mounting base is horizontally slidably mounted on the top of the mounting frame. The sliding direction of the mounting base on the mounting frame is perpendicular to the sliding direction of the lower connecting block on the guide rail. An electromagnetic slider II connected to the mounting base is fixedly mounted on the mounting frame.

[0028] Furthermore: a fixing block is fixedly installed on the top of the support frame and on one side of the fixing frame, and a grinding component is installed on the top of the fixing block, which is used to grind the two sides of the wiring board and the connecting plate.

[0029] The grinding assembly includes two vertical telescopic rods 2, each fixedly mounted on the top of a fixed block. A horizontal slide rail is fixedly mounted on the top of each telescopic rod 2. A drive rod 5, connected to the bottom of the slide rail, is fixedly mounted on the top of the fixed block. Two mounting plates are slidably mounted horizontally on the top of the slide rail. A horizontal mounting shaft is symmetrically mounted on the two mounting plates. A grinding disc is fixedly mounted on one end of the two mounting shafts that is close to each other. A motor for driving the mounting shafts is fixedly mounted on the mounting plates. A drive rod 6, connected to the two mounting plates, is fixedly mounted on the top of the slide rail on the side of the two mounting plates that is far apart from each other.

[0030] Furthermore: A bracket is fixedly installed on the top of the mounting frame and on one side of the lower connecting block. A spray pipe is fixedly installed on the bracket. A dust cleaning mechanism is installed on the fixed block, which includes a support plate fixedly installed on the top of the fixed block. An expansion hood is fixedly installed on the side of the support plate near the slide rail. A negative pressure chamber is opened on one side of the fixed block. A negative pressure pipe is connected through the expansion hood. The other end of the negative pressure pipe passes through the side wall of the fixed block and communicates with the inside of the negative pressure chamber. A sealing door for sealing the opening end of the negative pressure chamber is hinged on the fixed block. The sealing door is fixed to the fixed block by a buckle. A through hole communicating with the inside of the negative pressure chamber is opened on the sealing door and inside the through hole. A filter plate for sealing the through hole is fixedly installed on the sealing door and outside the through hole. An installation shell is fixedly installed on the sealing door and outside the through hole. An exhaust fan is fixedly installed inside the installation shell. A waste box with an open top is placed inside the negative pressure chamber and below the negative pressure pipe.

[0031] This invention provides a multi-station annular busbar resistance welding machine. Compared with the prior art, it has the following advantages:

[0032] 1. This method replaces the existing manual handling of the busbar assembly and terminal block separately, ensuring a proper fit between the busbar assembly's connecting plate and the terminal block, thereby improving positioning accuracy, welding precision, and product quality.

[0033] 2. Enables transverse and longitudinal tensile testing of the weld joints between the terminal block and the connecting plate, eliminating the need for subsequent weld strength testing between the terminal block and the connecting plate, thereby improving processing efficiency;

[0034] 3. Through the design of the grinding component, the online grinding structure is directly integrated into the equipment. When welding between the next connecting plate and the terminal board, the busbar can be rotated to the grinding station after welding to perform grinding, realizing simultaneous welding and grinding. This eliminates the need for secondary clamping and transfer, greatly improving efficiency. Furthermore, through the cooperation of drive rod five and drive rod six, the two grinding discs can be precisely positioned on both sides of the weld, improving applicability and ensuring grinding effect. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0036] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown;

[0037] Figure 2 A schematic diagram of the installation structure of the positioning component two of the present invention is shown;

[0038] Figure 3 A schematic diagram of the installation structure of the second limiting component of the present invention is shown;

[0039] Figure 4 A schematic diagram of the installation structure of the unlocking component of the present invention is shown;

[0040] Figure 5 A schematic diagram of the installation structure of the limiting component one of the present invention is shown;

[0041] Figure 6 A schematic diagram of the positioning element of the present invention is shown;

[0042] Figure 7 A schematic diagram of the installation structure of the polishing assembly of the present invention is shown;

[0043] Figure 8 A schematic diagram of the installation structure of the filter plate of the present invention is shown;

[0044] Figure 9 A schematic diagram of the bus assembly of the present invention is shown;

[0045] Figure 10 A schematic diagram of the installation structure of the positioning base plate of the present invention is shown;

[0046] Figure 11 A schematic diagram of the mounting structure of the positioning component of the present invention is shown;

[0047] Figure 12 The present invention is shown Figure 11 Enlarged view of point A in the middle;

[0048] The diagram shows: 1. Welding machine assembly; 11. Support frame; 111. Adjusting rod; 12. Welding machine body; 13. Lower connecting seat; 14. Lower welding column; 15. Upper connecting seat; 16. Upper welding column; 2. Positioning assembly one; 21. Fixing frame; 22. Rotating rod; 23. Positioning base plate; 24. Adjusting component; 25. Positioning component; 251. Contact block; 252. Bidirectional threaded rod; 26. Holding component; 261. Fixing plate; 26 2. Pressure plate; 263. Pressure rod; 264. Drive rod; 265. Hinge block; 3. Busbar assembly; 31. Annular busbar; 32. Connecting plate; 4. Mounting assembly; 41. Mounting bracket; 411. Bracket; 412. Spray pipe; 42. Mounting seat; 5. Positioning assembly two; 51. Limiting component one; 511. Guide rail; 512. Moving block; 5121. Lower connecting block; 5122. Upper connecting block; 5123. 5124. Snap-fit ​​hole; 5124. Drive rod four; 513. Support plate; 52. Limiting component two; 521. Telescopic rod one; 522. Horizontal plate one; 523. Spring telescopic rod; 524. Horizontal plate two; 525. Pressure sensor one; 526. Abutment plate; 527. Unlocking component; 5271. Sliding rod; 5272. Unlocking plate; 5273. Sliding block; 5274. Hinge rod; 5275. Pressure sensor two; 53. Positioning Components; 531, Positioning post; 532, Connecting spring; 533, Clip-on block; 6, Wiring board; 61, Positioning hole; 7, Fixing block; 71, Negative pressure chamber; 72, Sealing door; 73, Filter plate; 74, Exhaust fan; 75, Waste box; 8, Grinding assembly; 81, Telescopic rod II; 82, Slide rail; 83, Mounting plate; 84, Grinding disc; 9, Smoke and dust cleaning mechanism; 91, Support plate; 92, Expansion cover; 93, Negative pressure pipe. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, 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.

[0050] Example

[0051] To address the technical problems in the background section, the following multi-station annular busbar resistance welding machine is provided:

[0052] Combination Figures 1-12 As shown, the multi-station annular busbar resistance welding machine provided by the present invention includes:

[0053] Welding machine assembly 1 includes a support frame 11, a welding machine body 12 fixedly mounted on the top of the support frame 11, a lower connecting seat 13 fixedly mounted on the bottom side of the welding machine body 12, a vertical lower welding column 14 fixedly mounted on the lower connecting seat 13, a vertical drive rod 1 fixedly mounted on the top side of the welding machine body 12, an upper connecting seat 15 fixedly mounted on the bottom of the drive rod, and an upper welding column 16 fixedly mounted on the upper connecting seat 15 that can fit against the top of the lower welding column 14.

[0054] Positioning component 2 includes a fixed frame 21 fixedly mounted on the support frame 11 and located in front of the lower connecting seat 13. A vertical rotating rod 22 is rotatably mounted on the fixed frame 21. A positioning base plate 23 is fixedly mounted on the top of the rotating rod 22. An adjusting component 24 for driving the rotating rod 22 to rotate or stop rotating is mounted on the fixed frame 21. A positioning component 25 is mounted on the top of the positioning base plate 23. A pressing component 26 is mounted on the top of the positioning base plate 23 and inside the positioning component 25.

[0055] Busbar assembly 3 includes an annular busbar 31, and the outer wall of the annular busbar 31 is provided with three connecting plates 32, each of which is electrically connected to the annular busbar 31.

[0056] Mounting assembly 4 includes a mounting bracket 41 fixedly mounted on the side of the lower connecting base 13 away from the fixing frame 21, and a mounting base 42 mounted on the top of the mounting bracket 41;

[0057] Positioning component 2 5 includes a limiting component 1 51 and a limiting component 2 52 installed on the top of the mounting base 42. A wiring plate 6 is provided between the limiting component 1 51 and the limiting component 2 52. The longitudinal section of the wiring plate 6 is L-shaped. One end of the wiring plate 6 is horizontal and can fit against the top of the connecting plate 32. The other end is provided with a horizontal positioning hole 61. The limiting component 1 51 is provided with a positioning element 53 for positioning the wiring plate 6.

[0058] Under welding conditions:

[0059] An annular row 31 is placed on top of the positioning base plate 23. The positioning component 25 positions the annular row 31. The pressing component 26 presses the top of the annular row 31 and the side near the multiple connecting plates 32, so that one of the connecting plates 32 is located directly above the lower welding column 14.

[0060] The terminal block 6 is placed between the first limiting member 51 and the second limiting member 52 to limit the terminal block 6 through the first limiting member 51 and the second limiting member 52. The positioning member 53 passes through the positioning hole 61 to position the terminal block 6 so that one end of the terminal block 6 is in contact with the connecting plate 32 located directly above the lower welding column 14.

[0061] When welding is complete:

[0062] The second limiting component 52 performs a motion to test the welding strength between the wiring plate 6 and the connecting plate 32, and unlocks the positioning component 53.

[0063] This method replaces the existing manual handling of the busbar assembly and terminal block separately, allowing the connection plate of the busbar assembly to be attached to the terminal block, thus improving positioning accuracy, welding precision, and product quality. It also enables lateral and longitudinal tensile testing of the weld between the terminal block and the connection plate, eliminating the need for subsequent welding strength testing between the terminal block and the connection plate, thereby improving processing efficiency.

[0064] Combination Figures 1-12 As shown, the fixed frame 21 is slidably mounted on the top of the support frame 11 along the lower connecting seat 13. An adjusting rod 111 threadedly connected to the fixed frame 21 is rotatably mounted on the support frame 11. The adjusting component 24 includes a worm gear coaxially fixed to the rotating rod 22. A worm gear meshing with the worm gear is rotatably mounted on the fixed frame 21. In use, the fixed frame 21 is slid on the support frame 11 by adjusting the rod 111 to realize the positioning position of the entire moving busbar assembly 3, thereby finely adjusting the relative position of the connecting plate 32 and the welding column to adapt to products of different specifications. The rotating rod 22 is driven to rotate by the worm gear and worm gear structure, which can accurately control the rotation angle of the busbar assembly 3, send different connecting plates 32 to the welding position in sequence, and can be reliably locked at any position to ensure the stability during welding.

[0065] The positioning component 25 includes abutment blocks 251 symmetrically slidably mounted on the top of the positioning base plate 23. A horizontal bidirectional threaded rod 252 is rotatably mounted on the positioning base plate 23. The bidirectional threaded rod 252 is threadedly connected to both abutment blocks 251. The bidirectional threaded rod 252 drives the two abutment blocks 251 to move in opposite directions, which can radially tighten and position them from inside the busbar assembly 3. It is suitable for ring structures, and the positioning is reliable and adaptable to different inner diameters.

[0066] Combination Figures 1-12 As shown, the pressing component 26 includes a fixed plate 261 fixedly installed on the top of the positioning base plate 23 and located between the opposite sides of the two abutment blocks 251. A pressing plate 262 is hinged to the top of the positioning base plate 23 and on the side of the fixed plate 261 near the lower welding column 14. Pressing rods 263 are hinged to both sides of the pressing plate 262. The free ends of the pressing plate 262 and the two pressing rods 263 can abut against the top of the annular row 31. A driving rod 264 is threaded through the fixed plate 261. The bottom of the driving rod 264 is inclined along the direction of the pressing plate 262. A hinge block 265 is hinged to the top of the pressing plate 262. The bottom of the driving rod 264 is rotatably connected to the hinge block 265. A three-point pressing system is formed by the pressing plate 262 and the two pressing rods 263, which press against the areas near the three connecting plates 32 respectively, improving the positioning stability.

[0067] CombinationFigures 1-12 As shown, the limiting component 51 includes a guide rail 511, a moving block 512, and a support plate 513. The guide rail 511 is located on the top of the mounting base 42 and on the side of the lower welding column 14 away from the fixing frame 21. The moving block 512 is horizontally slidably mounted on the top of the guide rail 511 along the direction of the lower welding column 14. The support plate 513 is fixedly mounted on the side of the moving block 512 near the lower welding column 14. An electric slider connected to the moving block 512 is fixedly mounted on the guide rail 511. The positioning component 53 is mounted on the side of the moving block 512 near the lower welding column 14 and is located above the support plate 513.

[0068] Combination Figures 1-12 As shown, the positioning component 53 includes a horizontally oriented positioning post 531 fixedly installed on one side of the movable block 512 and located above the support plate 513. When the bottom of the wiring plate 6 is in contact with the top of the support plate 513, the positioning post 531 can movably pass through the positioning hole 61. The outer side wall of the positioning post 531 is symmetrically provided with receiving grooves. Multiple horizontally oriented connecting springs 532 are fixedly installed on the positioning post 531 and located in two receiving grooves. The ends of the multiple connecting springs 532 are fixedly installed with snap-fit ​​blocks 533 extending to the outside of the positioning post 531. The snap-fit ​​blocks 533 are in contact with the cross section of the inner side wall of the receiving groove. One end of the snap-fit ​​block 533 extending to the outside of the positioning post 531 is away from the movable block 512. When the direction is inclined towards the receiving groove, and multiple connecting springs 532 are in their natural state, the end of the locking block 533 away from the moving block 512 is hidden in the receiving groove. Specifically, when multiple connecting springs 532 are in their natural state, two locking blocks 533 are attached to the side of the terminal block 6 away from the moving block 512. Through the design of the positioning post 531 and the two locking blocks 533, when the terminal block 6 is installed, the inclined locking block 533 is pressed back into the receiving groove. After passing through the positioning hole 61, it pops out and automatically locks under the action of the connecting spring 532, realizing quick installation. After the locking block 533 pops out, it locks the side wall of the terminal block 6 to prevent it from loosening or falling off during welding pressure or transportation.

[0069] Combination Figures 1-12As shown, the limiting component 52 includes a telescopic rod 521, a horizontal plate 522, a spring telescopic rod 523, a horizontal plate 524, a pressure sensor 525, and a contact plate 526. A vertically oriented telescopic rod 521 is symmetrically fixedly installed on the top of the mounting base 42, on the side of the guide rail 511 near the lower weld column 14. A horizontal plate 522 is fixedly installed on the top of the two telescopic rods 521. A drive rod 2 connected to the horizontal plate 522 is fixedly installed on the top of the mounting base 42. A vertically oriented spring telescopic rod 523 is symmetrically fixedly installed on the top of the horizontal plate 522. A horizontal plate 524 is fixedly installed on the top of the two spring telescopic rods 523. Specifically, the spring telescopic rod 523 includes a sleeve fixedly connected to the horizontal plate 522. The top of the sleeve has a vertically movable connection that is fixedly connected to the horizontal plate 524. A spring is installed inside the sleeve and between the sleeve and the connecting rod. A pressure sensor 525 is fixedly installed on the top of the first horizontal plate 522 and contacts the bottom of the second horizontal plate 524. An abutment plate 526 is fixedly installed on the top of the first horizontal plate 522. An installation hole is opened on the abutment plate 526 on the side of the positioning post 531 away from the moving block 512. An unlocking element 527 is installed on the abutment plate 526 and in the installation hole, which acts on the two locking blocks 533. It is used to hide the two locking blocks 533 in the receiving groove. In use, the second driving rod lifts the first horizontal plate 522 and the abutment plate 526, applying an upward force to the wiring plate 6. The spring telescopic rod 523 and the pressure sensor 525 are used to monitor the magnitude of this force to realize longitudinal strength detection. The installation hole on the abutment plate 526 provides installation space for the unlocking element 527.

[0070] Combination Figures 1-12 As shown, the unlocking component 527 includes a horizontally oriented sliding rod 5271 fixedly installed inside the mounting hole. Unlocking plates 5272, which can abut against the locking block 533, are symmetrically slidably installed on the outside of the sliding rod 5271 and on both sides of the positioning post 531. A sliding block 5273 is slidably installed on the bottom wall of the mounting hole along the direction of the positioning post 531. A drive rod 3 connected to the sliding block 5273 is fixedly installed on the bottom wall of the mounting hole. Hinged rods 5274 are hinged to both sides of the sliding block 5273. The free ends of the two hinged rods 5274 are respectively hinged to the sides of the two unlocking plates 5272 that are close to each other.

[0071] Combination Figures 1-12As shown, the movable block 512 includes a lower connecting block 5121 slidably mounted on the top of the guide rail 511, and an upper connecting block 5122 slidably mounted on the top of the lower connecting block 5121. The sliding direction of the upper connecting block 5122 on the lower connecting block 5121 is the same as the sliding direction of the lower connecting block 5121 on the guide rail 511. A groove is provided at the bottom of the upper connecting block 5122, and a snap-fit ​​hole 5123 is provided at the top of the lower connecting block 5121 below the groove. A vertically shaped drive rod 5124 is fixedly mounted on the top plate inside the groove. The piston rod of the drive rod 5124 can be inserted into the snap-fit ​​hole 5123 and is connected to the lower connecting block. A reset spring connected to the upper connecting block 5122 is fixedly installed on the top of the lower connecting block 5121, on the side of the upper connecting block 5122 away from the lower welding column 14. A support plate 513 is fixedly installed on the top of the side wall of the lower connecting block 5121. A pressure sensor 5275, which can abut against the positioning column 531, is fixedly installed on the side of the sliding block 5273 near the positioning column 531. Pressure sensors 525 and 5275 are communicatively connected to a PLC control system. The PLC control system has preset pressure thresholds for pressure sensors 525 and 5275.

[0072] The upper connecting block 5122 and the lower connecting block 5121 are connected by a return spring and a separable drive rod 5124 to form an elastic floating connection. During strength detection, the pressure sensor 5275 can accurately measure the lateral resistance force to achieve the effect of lateral strength detection. Thus, the pressure sensor 525 and the pressure sensor 5275 provide mechanical signals in the longitudinal and lateral dimensions respectively, making the strength detection more comprehensive and accurate.

[0073] The mounting base 42 is horizontally slidably mounted on the top of the mounting frame 41. The sliding direction of the mounting base 42 on the mounting frame 41 is perpendicular to the sliding direction of the lower connecting block 5121 on the guide rail 511. An electromagnetic slider II connected to the mounting base 42 is fixedly mounted on the mounting frame 41.

[0074] Combination Figures 1-12 As shown, a fixing block 7 is fixedly installed on the top of the support frame 11 and on one side of the fixing frame 21. A grinding component 8 is installed on the top of the fixing block 7, which is used to grind the two sides of the wiring board 6 and the connecting plate 32.

[0075] The grinding assembly 8 includes two vertical telescopic rods 81 fixedly mounted on the top of the fixed block 7. A horizontal slide rail 82 is fixedly mounted on the top of the two telescopic rods 81. A drive rod 85 connected to the bottom of the slide rail 82 is fixedly mounted on the top of the fixed block 7. Two mounting plates 83 are slidably mounted horizontally on the top of the slide rail 82. Horizontal mounting shafts are symmetrically rotatably mounted on the two mounting plates 83. Grinding discs 84 are fixedly mounted on the ends of the two mounting shafts that are close to each other. A motor for driving the mounting shafts is fixedly mounted on the mounting plates 83. The top of the slide rail 82 and located at the two... On the opposite sides of each mounting plate 83, drive rods 6 are fixedly installed and connected to the two mounting plates 83. Through the design of the grinding assembly 8, the online grinding structure is directly integrated into the equipment. When welding between the next connecting plate 32 and the terminal block 6, the busbar can be rotated to the grinding station after welding to perform grinding, realizing simultaneous welding and grinding. This eliminates the need for secondary clamping and transfer, greatly improving efficiency. Furthermore, through the cooperation of drive rods 5 and 6, the two grinding discs 84 can be precisely positioned on both sides of the weld, improving applicability and ensuring grinding effect.

[0076] Combination Figures 1-12 As shown, a bracket 411 is fixedly installed on the top of the mounting frame 41 and on one side of the lower connecting block 5121. A spray pipe 412 is fixedly installed on the bracket 411. Specifically, the outlet end of the spray pipe 412 is inclined between the lower welding column 14 and the upper welding column 16. The spray pipe 412 is connected to an external water source pump. A dust cleaning mechanism 9 is installed on the fixed block 7, which includes a support plate 91 fixedly installed on the top of the fixed block 7. An expansion hood 92 is fixedly installed on the side of the support plate 91 near the slide rail 82. A negative pressure chamber 71 is opened on one side of the fixed block 7. A negative pressure pipe 93 is connected through the expansion hood 92. The other end of the negative pressure pipe 93 passes through the side wall of the fixing block 7 and is connected to the inside of the negative pressure cavity 71. A sealing door 72 for sealing the opening end of the negative pressure cavity 71 is hinged on the fixing block 7. The sealing door 72 is fixed to the fixing block 7 by a buckle. A through hole connected to the inside of the negative pressure cavity 71 is opened on the sealing door 72. A filter plate 73 for sealing the through hole is fixedly installed on the sealing door 72 and located inside the through hole. An installation shell is fixedly installed on the sealing door 72 and located outside the through hole. An exhaust fan 74 is fixedly installed inside the installation shell. A waste box 75 with an open top is placed inside the negative pressure cavity 71 and below the negative pressure pipe 93.

[0077] Working principle and usage process of this invention:

[0078] In use, the connecting plate 32 of the busbar assembly 3 is welded to the terminal block 6:

[0079] When feeding the busbar assembly 3, the rotating drive rod 264 is used to make it spirally move on the fixed plate 261, causing the pressure plate 262 to rotate around its own hinge point on the positioning base plate 23. This causes the free end of the pressure plate 262 to move upward in an arc shape. Then, the two pressure rods 263 rotate around their own hinge points on both sides of the pressure plate 262 and fit against the side wall of the pressure plate 262. The annular busbar 31 is placed on top of the positioning base plate 23, so that the annular busbar 31 is sleeved on the outside of the two abutting blocks 251. The annular busbar 31 is rotated so that the connecting plate 32, which is located in the middle position outside the annular busbar 31, is located below the pressure plate 262. The bidirectional threaded rod 252 is rotated so that the two abutting blocks 251 slide in opposite directions and move away from each other, so that both abutting blocks 251 abut against the inner bottom wall of the annular busbar 31, and engage with the annular busbar 31. Pre-positioning, then reverse rotation of the drive rod 264 causes the pressure plate 262 to rotate around its own hinge point on the positioning base plate 23, so that the pressure plate 262 presses the top of the annular row 31. During this period, the two pressure rods 263 are rotated respectively, so that the free ends of the two pressure rods 263 are respectively located above the two connecting plates 32 that are far apart from each other. Thus, the pressure plate 262 and the two pressure rods 263 can press and fix the top of the annular row 31 near the three connecting plates 32. Rotate the adjusting rod 111 to move the fixing frame 21 on the support frame 11, so that the bottom of one of the connecting plates 32 is in contact with the top of the lower welding column 14. Then rotate the worm gear to drive the rotating rod 22 to rotate through the worm wheel, so that the connecting plate 32 located near the grinding component 8 is in contact with the top of the lower welding column 14.

[0080] When feeding the terminal block 6, the control drive rod 5124 inserts its piston rod into the snap-fit ​​hole 5123, positioning the upper connecting block 5122 and the lower connecting block 5121. The electric slider 1 moves the lower connecting block 5121 away from the contact plate 526 on the guide rail 511. Then, the positioning hole 61 on the terminal block 6 fits onto the outer side of the positioning post 531. The bottom of one vertical end of the terminal block 6 is in contact with the top of the support plate 513, and the bottom of one horizontal end is in contact with the top of the contact plate 526. The terminal block 6 is pushed closer to the upper connecting block 5122. During this process, when the terminal block 6 contacts the two snap-fit ​​blocks 533, the two snap-fit ​​blocks are pushed... The connecting blocks 533 move into the two receiving slots respectively, and the connecting springs 532 in the receiving slots deform. When the terminal block 6 contacts the upper connecting block 5122, the connecting springs 532 in the receiving slots return to their natural state and push the two locking blocks 533 to reset. The two locking blocks 533 are attached to the side of the terminal block 6 away from the upper connecting block 5122, positioning the terminal block 6. At this time, the lower connecting block 5121 is moved towards the contact plate 526 on the guide rail 511 by the electric slider, so that one end of the terminal block 6 in the horizontal direction is moved above the lower welding column 14, and the bottom of the terminal block 6 is attached to the top of the connecting plate 32, thus completing the feeding of the terminal block 6.

[0081] When welding between the terminal block 6 and the connecting plate 32 located between the lower welding column 14 and the upper welding column 16, the main body 12 of the welding machine is controlled to work, and the upper connecting seat 15 is moved down by the drive rod, which drives the upper welding column 16 to move down and form contact with the top of the terminal block 6. Current is passed between the two electrodes of the lower welding column 14 and the upper welding column 16. The resistance heat generated by the current flowing through the contact surface and adjacent area of ​​the terminal block 6 and the connecting plate 32 can perform hot melt welding on the terminal block 6 and the connecting plate 32. This replaces the existing method of manually holding the busbar assembly 3 and the terminal block 6 separately to make the connecting plate 32 of the busbar assembly 3 fit with the terminal block 6, which improves the positioning accuracy, welding accuracy and product quality. During this process, water is supplied to the spray pipe 412 by an external water supply pump. The water is discharged from the outlet of the spray pipe 412 and sprayed onto the terminal block 6 and the connecting plate 32, thereby cooling the lower welding column 14 and the upper welding column 16.

[0082] After the welding between the lower welding column 14 and the upper welding column 16 is completed, when welding the next set of wiring plates 6 and connecting plates 32, the second control rod moves the horizontal plate 522 upward, causing the two telescopic rods 521 to move upward, driving the contact plate 526 upward to contact the bottom of one horizontal end of the wiring plate 6. The fourth control rod 5124 moves its piston rod to the outside of the snap-fit ​​hole 5123, and the third control rod moves the sliding block 5273 towards the positioning post 531, causing the pressure sensor 5275 to contact the end of the positioning post 531. During this process, when the horizontal plate 522 moves upward, under the reverse force, the two spring telescopic rods 523 are deformed, and the pressure sensor 525 and the horizontal plate 524... When pressure sensor 5275 and positioning post 531 come into contact, the detection signal changes. When the detection signal of pressure sensor 525 reaches the preset threshold of pressure sensor 525 in the PLC control system, the control drive rod 2 works to drive the horizontal plate 522 to reset. Similarly, when the detection signal of pressure sensor 5275 reaches the preset threshold of pressure sensor 5275 in the PLC control system, the control drive rod 3 causes the sliding block 5273 to move away from positioning post 531 to reset. This achieves the effect of transverse and longitudinal tensile testing of the weld between terminal block 6 and connecting plate 32, thus eliminating the need for subsequent welding strength testing between terminal block 6 and connecting plate 32, thereby improving processing efficiency.

[0083] After inspecting the weld between the terminal block 6 and the connecting plate 32, control drive rod one to move the upper connecting seat 15 upward, causing the upper welding post 16 to reset. Control drive rod three to move the sliding block 5273 away from the positioning post 531. The two hinge rods 5274 rotate around their own hinge points on both sides of the sliding block 5273. The other ends of the two hinge rods 5274 rotate between the two unlocking plates 5272. The two unlocking plates 5272 slide in the opposite direction along the sliding rod 5271 and move closer to each other. The two unlocking plates 5272 abut against the two locking blocks 533. The two locking blocks 533 are hidden in the receiving groove, unlocking the positioning part 53. Control drive rod four 5124 to insert its piston rod into the locking hole 5123 to position the upper connecting block 5122 and the lower connecting block 5121. Then control electric slider one to move the lower connecting block 5121 on the guide rail 5. 11 moves away from the contact plate 526, causing the positioning post 531 to move to the outside of the positioning hole 61. At this time, the operator rotates the worm gear, causing the rotating rod 22 to rotate on the fixed frame 21, so that the adjacent connecting plate 32 rotates to the top of the lower welding post 14. During this time, the electromagnetic slider 2 is controlled to move the mounting seat 42 to the outside of the lower welding post 14 on the mounting frame 41. At this time, the operator can hold the terminal block 6 and make the positioning hole 61 on the terminal block 6 fit on the outside of the end of the positioning post 531. Push the terminal block 6 towards the upward connecting block 5122 to load the terminal block 6. This makes it easier for the operator to load the terminal block 6. After loading, the electromagnetic slider 2 is controlled to move the mounting seat 42 towards the lower welding post 14 on the mounting frame 41, so that the bottom of the terminal block 6 fits with the top of the connecting plate 32, thereby welding the terminal block 6 and the connecting plate 32.

[0084] During this process, the welded terminal block 6 and connecting plate 32 are moved above the slide rail 82. When welding the terminal block 6 and connecting plate 32 above the lower welding column 14, the control drive rod five moves the slide rail 82 upward along the two telescopic rods 81, causing the two grinding discs 84 to move to the positions on both sides of the weld between the terminal block 6 and connecting plate 32. At this time, the control motors are turned on, and the two motors drive the two mounting shafts to rotate, causing the two grinding discs 84 to rotate around the two mounting shafts. Then, through the cooperation of the two drive rods six, the two mounting plates 83 are brought closer to each other, causing the two grinding discs 84 to contact the weld between the terminal block 6 and connecting plate 32, thus grinding the weld between the terminal block 6 and connecting plate 32. This eliminates the need for subsequent grinding and finishing of the weld between the terminal block 6 and connecting plate 32, thereby improving the processing efficiency of the bus assembly 3. The exhaust fan 74 is turned on, drawing air out of the negative pressure chamber 71 through the through hole. External air flows into the negative pressure pipe 93 through the expansion cover 92. During air circulation, the dust generated by the grinding disc 84 grinding the weld between the terminal block 6 and the connecting plate 32 is carried into the negative pressure chamber 71 by the airflow, achieving the effect of cleaning the dust generated by grinding the weld between the terminal block 6 and the connecting plate 32. As the air flows out through the through hole, the dust in the dust comes into contact with the filter plate 73, which filters the dust, leaving it in the negative pressure chamber 71, thus improving the ambient air quality. The dust remaining in the negative pressure chamber 71 falls into the waste box 75 under its own gravity, and is collected by the waste box 75. The fasteners that fix the sealing door 72 and the fixing block 7 are removed, and the sealing door 72 is opened to remove the waste box 75, thus treating the dust collected in the waste box 75. The operation is simple.

[0085] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0086] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-station annular busbar resistance welding machine, characterized in that: include: A welding machine assembly includes a support frame, a welding machine body fixedly mounted on the top of the support frame, a lower connecting seat fixedly mounted on the bottom side of the welding machine body, a vertical lower welding column fixedly mounted on the lower connecting seat, a vertical drive rod fixedly mounted on the top side of the welding machine body, an upper connecting seat fixedly mounted on the bottom of the drive rod, and an upper welding column fixedly mounted on the upper connecting seat that can fit against the top of the lower welding column. Positioning component one includes a fixed frame that is fixedly installed on the support frame and located in front of the lower connecting seat. A vertical rotating rod is rotatably installed on the fixed frame. A positioning base plate is fixedly installed on the top of the rotating rod. An adjusting component for driving the rotating rod to rotate or stop rotating is installed on the fixed frame. A positioning component is installed on the top of the positioning base plate. A pressing component is installed on the top of the positioning base plate and inside the positioning component. The busbar assembly includes an annular busbar, and the outer wall of the annular busbar is provided with three connecting plates, each electrically connected to the annular busbar. The mounting assembly includes a mounting bracket fixedly mounted on the side of the lower connector away from the mounting frame, with a mounting base mounted on top of the mounting bracket; Positioning component 2 includes a limiting component 1 and a limiting component 2 installed on the top of the mounting base. A wiring plate is provided between the limiting component 1 and the limiting component 2. The longitudinal section of the wiring plate is L-shaped. One end of the wiring plate is horizontal and can fit against the top of the connecting plate. The other end has a horizontal positioning hole. The limiting component 1 is provided with a positioning element for positioning the wiring plate. Under welding conditions: The annular row is placed on top of the positioning base plate. The positioning component positions the annular row, and the pressing component presses the top of the annular row and the side close to multiple connecting plates, so that one of the connecting plates is located directly above the lower welding column. The terminal block is placed between the first limiting component and the second limiting component to limit the terminal block through the first limiting component and the second limiting component. The positioning component passes through the positioning hole to position the terminal block so that one end of the terminal block is in contact with the connecting plate located directly above the lower welding column. When welding is completed: the second action of the limiting component checks the welding strength between the wiring board and the connecting plate, and unlocks the positioning component.

2. The multi-station annular busbar resistance welding machine according to claim 1, characterized in that: The fixed frame is slidably mounted on the top of the support frame along the lower connecting seat. An adjusting rod that is threadedly connected to the fixed frame is rotatably mounted on the support frame. The adjusting component includes a worm gear that is coaxially fixed to the rotating rod. A worm gear that meshes with the worm gear is rotatably mounted on the fixed frame. The positioning component includes symmetrically slidingly mounted abutment blocks on the top of the positioning base plate, and a horizontally oriented bidirectional threaded rod is rotatably mounted on the positioning base plate, with the bidirectional threaded rod threadedly connected to both abutment blocks.

3. The multi-station annular busbar resistance welding machine according to claim 2, characterized in that: The holding component includes a fixed plate fixedly installed on the top of the positioning base plate and located between the opposite sides of the two abutting blocks. A holding plate is hinged to the top of the positioning base plate and on the side of the fixed plate near the lower welding column. A holding rod is hinged to both sides of the holding plate. The free ends of the holding plate and the two holding rods can abut against the top of the annular row. A driving rod is threaded through the fixed plate. The bottom of the driving rod is inclined along the direction of the holding plate. A hinge block is hinged to the top of the holding plate. The bottom of the driving rod is rotatably connected to the hinge block.

4. The multi-station annular busbar resistance welding machine according to claim 1, characterized in that: The limiting component includes a guide rail, a moving block, and a support plate. The guide rail is located on the top of the mounting base and on the side of the lower welding column away from the fixed frame. The moving block is horizontally slidably mounted on the top of the guide rail along the direction of the lower welding column. The support plate is fixedly mounted on the side of the moving block near the lower welding column. An electric slider connected to the moving block is fixedly mounted on the guide rail. The positioning component is mounted on the side of the moving block near the lower welding column and above the support plate.

5. The multi-station annular busbar resistance welding machine according to claim 4, characterized in that: The positioning component includes a horizontally oriented positioning post fixedly installed on one side of the movable block and located above the tray. When the bottom of the wiring plate is in contact with the top of the tray, the positioning post can move through the positioning hole. The outer side wall of the positioning post is symmetrically provided with receiving grooves. Multiple horizontally oriented connecting springs are fixedly installed on the positioning post and located in the two receiving grooves. The ends of the multiple connecting springs are fixedly installed with snap-fit ​​blocks extending to the outside of the positioning post. The cross-section between the snap-fit ​​blocks and the inner side wall of the receiving groove is in contact. The end of the snap-fit ​​block extending to the outside of the positioning post is inclined into the receiving groove in a direction away from the movable block. When the multiple connecting springs are in their natural state, the end of the snap-fit ​​block away from the movable block is hidden in the receiving groove.

6. The multi-station annular busbar resistance welding machine according to claim 5, characterized in that: The limiting component two includes a telescopic rod one, a horizontal plate one, a spring telescopic rod, a horizontal plate two, a pressure sensor one, and a contact plate. A vertically oriented telescopic rod one is symmetrically fixedly installed on the top of the mounting base, on the side of the guide rail near the lower weld column. A horizontal plate one is fixedly installed on the top of the two telescopic rods one. A drive rod two connected to the horizontal plate one is fixedly installed on the top of the mounting base. A vertically oriented spring telescopic rod is symmetrically fixedly installed on the top of the horizontal plate one. A horizontal plate two is fixedly installed on the top of the two spring telescopic rods. A pressure sensor one, in contact with the bottom of the horizontal plate two, is fixedly installed on the top of the horizontal plate one. A contact plate is fixedly installed on the top of the horizontal plate one. A mounting hole is provided on the contact plate on the side of the positioning column away from the moving block. An unlocking component acting on the two locking blocks is installed on the contact plate within the mounting hole, which is used to hide both locking blocks within the receiving groove.

7. The multi-station annular busbar resistance welding machine according to claim 6, characterized in that: The unlocking component includes a horizontal sliding rod fixedly installed inside the mounting hole. Unlocking plates that can abut against the locking block are symmetrically slidably installed outside the sliding rod on both sides of the positioning post. A sliding block is slidably installed on the bottom wall of the mounting hole along the direction of the positioning post. A drive rod three connected to the sliding block is fixedly installed on the bottom wall of the mounting hole. Hinged rods are hinged on both sides of the sliding block. The free ends of the two hinged rods are respectively hinged to the sides of the two unlocking plates that are close to each other.

8. The multi-station annular busbar resistance welding machine according to claim 7, characterized in that: The movable block includes a lower connecting block slidably mounted on the top of the guide rail, an upper connecting block slidably mounted on the top of the lower connecting block, the upper connecting block sliding on the lower connecting block in the same direction as the lower connecting block sliding on the guide rail, a groove is provided at the bottom of the upper connecting block, a snap-fit ​​hole is provided at the top of the lower connecting block below the groove, a vertical drive rod four is fixedly mounted on the top plate inside the groove, the piston rod of the drive rod four can be inserted into the snap-fit ​​hole and snap-fit ​​with the lower connecting block, a return spring connected to the upper connecting block is fixedly mounted on the top of the lower connecting block on the side of the upper connecting block away from the lower welding column, a support plate is fixedly mounted on the top position of the side wall of the lower connecting block, and a pressure sensor two that can abut against the positioning column is fixedly mounted on the side of the sliding block near the positioning column; The mounting base is horizontally slidably mounted on the top of the mounting frame. The sliding direction of the mounting base on the mounting frame is perpendicular to the sliding direction of the lower connecting block on the guide rail. An electromagnetic slider II connected to the mounting base is fixedly mounted on the mounting frame.

9. The multi-station annular busbar resistance welding machine according to claim 1, characterized in that: A fixing block is fixedly installed on the top of the support frame and on one side of the fixing frame. A grinding component is installed on the top of the fixing block, which is used to grind the two sides of the wiring board and the connecting plate. The grinding assembly includes two vertical telescopic rods 2, each fixedly mounted on the top of a fixed block. A horizontal slide rail is fixedly mounted on the top of each telescopic rod 2. A drive rod 5, connected to the bottom of the slide rail, is fixedly mounted on the top of the fixed block. Two mounting plates are slidably mounted horizontally on the top of the slide rail. A horizontal mounting shaft is symmetrically mounted on the two mounting plates. A grinding disc is fixedly mounted on one end of the two mounting shafts that is close to each other. A motor for driving the mounting shafts is fixedly mounted on the mounting plates. A drive rod 6, connected to the two mounting plates, is fixedly mounted on the top of the slide rail on the side of the two mounting plates that is far apart from each other.

10. The multi-station annular busbar resistance welding machine according to claim 9, characterized in that: A bracket is fixedly installed on the top of the mounting frame and on one side of the lower connecting block. A spray pipe is fixedly installed on the bracket. A dust cleaning mechanism is installed on the fixed block, which includes a support plate fixedly installed on the top of the fixed block. An expansion hood is fixedly installed on the side of the support plate near the slide rail. A negative pressure chamber is opened on one side of the fixed block. A negative pressure pipe is connected through the expansion hood. The other end of the negative pressure pipe passes through the side wall of the fixed block and is connected to the inside of the negative pressure chamber. A sealing door for sealing the opening end of the negative pressure chamber is hinged on the fixed block. The sealing door is fixed to the fixed block by a buckle. A through hole connected to the inside of the negative pressure chamber is opened on the sealing door and inside the through hole. A filter plate for sealing the through hole is fixedly installed on the sealing door and outside the through hole. An installation shell is fixedly installed on the sealing door and outside the through hole. An exhaust fan is fixedly installed inside the installation shell. A waste box with an open top is placed inside the negative pressure chamber and below the negative pressure pipe.

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