A method of welding and a welding apparatus for an alloy resistor

Abstract

The application discloses a kind of alloy resistance welding method and welding device, including bottom station with PLC controller, the top of the bottom station is fixedly connected with dustproof box, the top of the inner wall of dustproof box is fixedly installed with hydraulic cylinder one, the output end of hydraulic cylinder one is fixedly connected with fixed frame, the inner wall of fixed frame is fixedly installed with driving motor one by support, the output end of driving motor one is fixedly connected with screw rod, the surface of screw rod is connected with nut seat.The application realizes sealing welding by dustproof automatic welding device through the cooperation of the above structure, and can operate multiple different welding heads inside the welding device, provides a dustproof sealing processing welding device, and can be integrated inside the welding device Welding method after grinding and welding, grinding and inserting treatment during electric welding process, indirectly improves the fine welding degree of alloy resistance.

Description

Technical Field

[0001] This invention relates to the field of alloy resistance welding technology, specifically to a welding method and welding apparatus for alloy resistance welding. Background Technology

[0002] Alloy resistors are resistors that use an alloy as the current medium. They generally feature low resistance, high precision, low temperature coefficient, surge current resistance, and high power. These resistors are commonly found in various electronic products, mainly used for current sampling or short-circuit protection. However, to form practically applicable alloy resistors, they need to be welded together. Because existing alloy resistors require a high degree of precision in welding, the welding head and the solder joint need to be at a certain angle during welding. However, manual welding by workers is prone to vibration, which may lead to missed solder joints or uneven solder joints, causing certain adverse effects on practical use. Therefore, improvements are needed. Summary of the Invention

[0003] The purpose of this invention is to provide a welding method and welding apparatus for alloy resistors, which features sealed welding via a dustproof automated welding device, multiple different welding heads that can operate integratedly within the welding device, a dustproof and sealed welding device, and a method for welding after grinding within the welding device. The grinding process during electric welding indirectly improves the precision of alloy resistor welding, bringing certain advantages to practical use and solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a welding method and welding apparatus for alloy resistance thermometers, comprising a base platform with a PLC controller, a dustproof box fixedly connected to the top of the base platform, a hydraulic cylinder 1 fixedly mounted on the top of the inner wall of the dustproof box, a fixed frame fixedly connected to the output end of the hydraulic cylinder 1, a drive motor 1 fixedly mounted on the inner wall of the fixed frame via a bracket, a lead screw fixedly connected to the output end of the drive motor 1, a nut seat connected to the surface of the lead screw, a movable stage fixedly connected to the bottom of the nut seat, a movable groove for the movable stage to move opened at the bottom of the fixed frame, a drive motor 2 fixedly mounted inside the movable stage, a turntable fixedly connected to the output end of the drive motor 2, a drive motor 3 fixedly mounted on the bottom of the turntable near its circumference, an adjustment frame fixedly connected to the output end of the drive motor 3, a drive motor 4 fixedly mounted on the top of the inner wall of the adjustment frame, a threaded rod fixedly connected to the output end of the drive motor 4, a threaded sleeve plate threadedly connected to the surface of the threaded rod, and a threaded sleeve plate connected to the side of the threaded sleeve plate. With the limit assembly connected, a welding machine body is fixedly installed at the bottom of the threaded sleeve plate. An electric cylinder is fixedly installed on the lower surface of the turntable near its center. A grinding wheel is fixedly connected to the output end of the electric cylinder. A fan is fixedly installed on the top of the grinding wheel via a bracket. A filter screen is fixedly connected circumferentially to the grinding wheel, and the filter screen is located directly below the fan. A hydraulic cylinder is fixedly installed on the inner wall of the base. A guide frame with rollers is fixedly connected to the output end of the hydraulic cylinder. The bottom of the inner wall of the base... The base is provided with a guide rail, the inner wall of which is rolledly connected to the bottom of the guide frame. An electric cylinder two is fixedly installed on the top of the guide frame. The output end of the electric cylinder two is fixedly connected to a processing frame. An electric cylinder three is fixedly installed on the side of the inner wall of the processing frame. A rectangular plate is fixedly connected to the output end of the electric cylinder three. A double-rod hydraulic cylinder is fixedly installed on the surface of the rectangular plate. An L-shaped plate is fixedly connected to the output end of the double-rod hydraulic cylinder. An anti-slip clamp is fixedly connected to the surface of the L-shaped plate. An air exchange groove is provided inside the base.

[0005] Preferably, a balance plate is fixedly connected to the side of the fixed frame, and a balance groove is provided on the side of the inner wall of the dustproof box. The inner wall of the balance groove and the surface of the balance plate are slidably connected.

[0006] Preferably, a dustproof stretch cloth is fixedly connected to the surface of the moving platform, the surface of the dustproof stretch cloth is connected to the inner wall of the moving groove, and an elastic band is connected inside the dustproof stretch cloth.

[0007] Preferably, a round rod is fixedly connected to the top of the turntable, and an annular groove is formed at the bottom of the moving platform. The inner wall of the annular groove and the surface of the round rod are slidably connected.

[0008] Preferably, the dustproof box has a hinged sealing door on the front side, the surface of the sealing door is snapped into the interior of the dustproof box, a support plate is fixedly connected to the front side of the sealing door, and an observation window is provided on the front side of the dustproof box near its middle part.

[0009] Preferably, the limiting component includes a limiting plate and a limiting groove. The limiting plate is fixedly connected to the side of the threaded sleeve plate, and the limiting groove is opened on the bottom of the adjusting frame. The inner wall of the limiting groove and the surface of the limiting plate are slidably connected.

[0010] Preferably, a locking plate is fixedly connected to the side of the inner wall of the adjustment frame, and a locking groove is provided on the top of the threaded sleeve plate. The inner wall of the locking groove and the surface of the locking plate are engaged and adapted.

[0011] Preferably, the inner wall of the ventilation trough is fixedly connected with a dust filter screen, and the number of dust filters screens is at least two, and the at least two dust filters screens are distributed in the lower half of the ventilation trough.

[0012] Compared with the prior art, the beneficial effects of the present invention are: it provides a welding device that can be processed in a dustproof and sealed manner, and a method for welding after grinding can be performed in an integrated manner inside the welding device, and the welding electrode material and degree can be different;

[0013] 1. The support plate on the front side of the sealed door will touch the bottom platform, forming a sloping protective plate, and the observation window on the front side of the dust box can be used by staff to observe the welding process.

[0014] 2. The operation of the second hydraulic cylinder will push the guide frame forward. Under the guidance of the guide rail, the processing frame can be smoothly pushed in the dustproof box. The alloy resistor to be welded can be placed in the processing frame. The operation of the double-rod hydraulic cylinder can drive the L-shaped plate to move. The movement of the L-shaped plate can drive the anti-slip clamping plate to move. The two anti-slip clamping plates close to each other will clamp the anti-slip alloy resistor. Subsequently, the operation of the two electric cylinders in the processing frame will push the rectangular plate and the alloy resistor on it to move, and complete the clamping and positioning of the bottom alloy resistor.

[0015] 3. When the drive motor starts, it drives the lead screw to rotate. The rotation of the lead screw drives the nut seat and the moving table to move and adjust in the moving slot to align with the welding machine body and the alloy resistor below. The movement of the hydraulic cylinder will drive the entire fixed frame to make a large correction in height. The operation of the second drive motor will drive the turntable to rotate. The welding machine body to be used is adjusted through the PLC controller. The operation of the fourth drive motor will drive the threaded rod to rotate. Under the action of the limit component, the rotation of the threaded rod will drive the threaded sleeve and the welding machine body to move down. The operation of the third drive motor can drive the adjustment frame and the welding machine body to swing and adjust the tilt angle for subsequent welding of the alloy resistor. Under the locking action of the locking plate and locking slot, the threaded sleeve on the unused welding machine body can be fixed.

[0016] 4. After a single weld is completed, the electric cylinder moves the grinding wheel downwards to grind the weld area, removing any protruding weld marks. A fan blows away debris, and a filter screen prevents debris from splashing. Because the turntable has four welding machine bodies evenly spaced around it, four different welding rods can be used simultaneously. The welding rod installation locations differ among the four welding machine bodies, allowing for fine welding followed by scraping off protrusions, and then rough welding for further repair. Welding can be performed in fine-coarse-fine patterns according to different requirements. Grinding can be interspersed between individual welds to achieve fine welding and grinding of the alloy resistor. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a front view of the present invention;

[0019] Figure 3 This is a front sectional view of the present invention;

[0020] Figure 4 This is a top view of the processing frame of the present invention;

[0021] Figure 5 This is a front cross-sectional view of the adjustment frame of the present invention;

[0022] Figure 6 This is an enlarged view of point A in the present invention;

[0023] Figure 7 This is an enlarged view of section B of the present invention.

[0024] In the diagram: 1. Base platform; 2. Dustproof box; 3. Hydraulic cylinder one; 4. Fixed frame; 5. Drive motor one; 6. Lead screw; 7. Nut seat; 8. Moving platform; 9. Drive motor two; 10. Turntable; 11. Drive motor three; 12. Adjusting frame; 13. Drive motor four; 14. Threaded rod; 15. Threaded sleeve; 16. Welding machine body; 17. Electric cylinder one; 18. Grinding wheel; 19. Fan; 20. Filter screen; 21. Hydraulic cylinder two; 22. Guide frame; 23. Guide rail; 24. Electric cylinder II; 25. Machining frame; 26. Electric cylinder III; 27. Rectangular plate; 28. Double-rod hydraulic cylinder; 29. ​​L-shaped plate; 30. Anti-slip clamp; 31. Ventilation slot; 32. Balance plate; 33. Balance groove; 34. Dustproof stretch cloth; 35. Round rod; 36. Annular groove; 37. Sealing door; 38. Support plate; 39. Observation window; 40. Limiting plate; 41. Limiting groove; 42. Locking plate; 43. Locking groove; 44. Dust filter. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please refer to Example 1 Figures 1-7This invention provides a technical solution: a welding method and welding apparatus for alloy resistance thermometers, comprising a base 1 with a PLC controller, a dustproof box 2 fixedly connected to the top of the base 1, a hydraulic cylinder 3 fixedly installed on the top of the inner wall of the dustproof box 2, a fixed frame 4 fixedly connected to the output end of the hydraulic cylinder 3, a drive motor 5 fixedly installed on the inner wall of the fixed frame 4 via a bracket, a lead screw 6 fixedly connected to the output end of the drive motor 5, a nut seat 7 connected to the surface of the lead screw 6, a movable stage 8 fixedly connected to the bottom of the nut seat 7, and a movable stage 8 provided at the bottom of the fixed frame 4. A movable platform 8 has a movable slot. A second drive motor 9 is fixedly installed inside the movable platform 8. A turntable 10 is fixedly connected to the output end of the second drive motor 9. A third drive motor 11 is fixedly installed on the turntable 10 near its circumferential bottom. An adjusting frame 12 is fixedly connected to the output end of the third drive motor 11. A fourth drive motor 13 is fixedly installed on the top of the inner wall of the adjusting frame 12. A threaded rod 14 is fixedly connected to the output end of the fourth drive motor 13. A threaded sleeve 15 is threadedly connected to the surface of the threaded rod 14. A limit assembly is connected to the side of the threaded sleeve 15. A welding machine body 16 is fixedly installed at the bottom. An electric cylinder 17 is fixedly installed on the lower surface of the turntable 10 near its center. A grinding wheel 18 is fixedly connected to the output end of the electric cylinder 17. A fan 19 is fixedly installed on the top of the grinding wheel 18 via a bracket. A filter screen 20 is fixedly connected circumferentially to the grinding wheel 18, and the filter screen 20 is located directly below the fan 19. A hydraulic cylinder 21 is fixedly installed on the inner wall of the base 1. A guide frame 22 with rollers is fixedly connected to the output end of the hydraulic cylinder 21. A guide rail 23 is provided at the bottom of the inner wall of the base 1. The inner wall of the guide rail 23 is rolledly connected to the bottom of the guide frame 22. An electric cylinder 24 is fixedly installed on the top of the guide frame 22. A processing frame 25 is fixedly connected to the output end of the electric cylinder 24. An electric cylinder 26 is fixedly installed on the side of the inner wall of the processing frame 25. A rectangular plate 27 is fixedly connected to the output end of the electric cylinder 26. A double-rod hydraulic cylinder 28 is fixedly installed on the surface of the rectangular plate 27. An L-shaped plate 29 is fixedly connected to the output end of the double-rod hydraulic cylinder 28. An anti-slip clamp 30 is fixedly connected to the surface of the L-shaped plate 29. An air exchange groove 31 is opened inside the base 1. The limiting assembly includes a limiting plate 40 and a limiting groove 41. The limiting plate 40 is fixedly connected to the side of the threaded sleeve 15, and the limiting groove 41 is opened on the bottom of the adjusting frame 12. The inner wall of the limiting groove 41 is slidably connected to the surface of the limiting plate 40. By setting the limiting plate 40 and the limiting groove 41, the movement trajectory of the threaded sleeve 15 is limited, so that the threaded rod 14 rotates and drives the threaded sleeve 15 to move.

[0027] Example 2: Please refer to Figures 1-7The difference between this embodiment and Embodiment 1 is that: a balance plate 32 is fixedly connected to the side of the fixed frame 4, and a balance groove 33 is provided on the side of the inner wall of the dustproof box 2. The inner wall of the balance groove 33 is slidably connected to the surface of the balance plate 32. Under the action of the balance plate 32 and the balance groove 33, the stable movement and balance of the fixed frame 4 are ensured. A dustproof stretch cloth 34 is fixedly connected to the surface of the moving platform 8. The surface of the dustproof stretch cloth 34 is connected to the inner wall of the moving groove, and an elastic band is connected inside the dustproof stretch cloth 34. The dustproof stretch cloth 34 in the moving groove can activate the dustproof and dust-blocking effect, reducing the situation where debris gets stuck inside the nut seat 7. A round rod 35 is fixedly connected to the top of the turntable 10, and an annular groove 36 is provided at the bottom of the moving platform 8. The inner wall of the annular groove 36 is slidably connected to the surface of the round rod 35. Under the action of the round rod 35 and the annular groove 36, the stable rotation of the turntable 10 is ensured, and the tilting situation is prevented.

[0028] Example 3: Please refer to Figures 1-7 The difference between this embodiment and Embodiment 1 is that: a hinged sealing door 37 is provided on the front side of the dustproof box 2. The surface of the sealing door 37 is engaged with the interior of the dustproof box 2. A support plate 38 is fixedly connected to the front side of the sealing door 37. The support plate 38 on the front side of the sealing door 37 touches the base 1, forming a sloping protective plate. An observation window 39 is provided on the front side of the dustproof box 2 near its center, which facilitates the observation of the welding process by the workers. A locking plate 42 is fixedly connected to the side of the inner wall of the adjusting frame 12. A locking groove 43 is provided on the top of the threaded sleeve 15. The inner wall of the locking groove 43 is engaged and adapted to the surface of the locking plate 42. Under the locking action of the locking plate 42 and the locking groove 43, the threaded sleeve 15 on the unused welding machine body 16 can be fixed.

[0029] Example 4: Please refer to Figures 1-7 The difference between this embodiment and embodiment 1 is that: a dust filter 44 is fixedly connected to the inner wall of the ventilation groove 31, and the number of the dust filter 44 is at least two, and the at least two dust filter 44 are distributed in the lower half of the ventilation groove 31. The dust filter 44 in the ventilation groove 31 can perform dust filtration during the ventilation and heat dissipation process.

[0030] Working Principle: In this alloy resistor welding method and device, the operator can open the sealing door 37. The support plate 38 on the front side of the sealing door 37 will touch the base platform 1, forming a sloping protective plate. After the sealing door 37 is opened, the processing frame 25 in the dustproof box 2 will be exposed. The operation of the hydraulic cylinder 21 will push the guide frame 22 forward. Guided by the guide rail 23, the processing frame 25 can be smoothly pushed to the doorway of the sealing door 37. Then, the operator can place the alloy resistor to be welded into the processing frame 25. The operation of the double-rod hydraulic cylinder 28 can drive the L-shaped plate 29 to move. The movement of the L-shaped plate 29 can drive the anti-slip clamping plate 30 to move. The two adjacent anti-slip clamping plates 30 will clamp the anti-slip alloy resistor. Subsequently... The operation of two electric cylinders 26 in the processing frame 25 pushes the rectangular plate 27 and the alloy resistor on it to move, completing the clamping and positioning of the bottom alloy resistor. Then, the hydraulic cylinder 21 starts to reset the processing frame 25, closing the sealing door 37 to put the dustproof box 2 in a relatively dustproof and sealed state. Then, the drive motor 5 starts to drive the lead screw 6 to rotate. The rotation of the lead screw 6 drives the nut seat 7 to move. The movement of the nut seat 7 drives the moving table 8 to move and adjust in the moving groove to align with the welding machine body 16 and the alloy resistor below. The dustproof stretch cloth 34 in the moving groove can activate the dustproof and dust-blocking effect, reducing the subsequent jamming of debris inside the nut seat 7. The movement of the hydraulic cylinder 3 will drive the entire fixed frame 4 to perform a significant correction. The balance plate 32 and balance groove 33 ensure the smooth movement and balance of the fixed frame 4. The operation of drive motor 2 9 drives the turntable 10 to rotate. The round rod 35 and annular groove 36 ensure the smooth rotation of the turntable 10 and prevent skewing. The welding machine body 16 is adjusted by the PLC controller. The operation of drive motor 4 13 drives the threaded rod 14 to rotate. The movement trajectory of the threaded sleeve 15 is limited by the setting of limit plate 40 and limit groove 41, so that the rotation of threaded rod 14 drives the threaded sleeve 15 to move. The threaded sleeve 15 drives the welding machine body 16 below to move down. The operation of drive motor 3 11 can drive the adjustment frame 12 and the welding machine body. The tilt angle of the 16-type welding machine body is adjusted by swinging to perform subsequent alloy resistor welding. Under the locking action of the locking plate 42 and locking groove 43, the threaded sleeve 15 on the unused welding machine body 16 can be fixed. After a single welding is completed, the electric cylinder 17 operates to drive the grinding wheel 18 downward to grind the welded area, grinding off the protruding welded areas. The fan 19 blows air to remove debris, and the filter screen 20 blocks debris from splashing. Because the corresponding welding machine bodies 16 are evenly arranged circumferentially below the turntable 10, four welding machine bodies 16 with different welding rods can be set up at the same time. The welding rod installation positions of the four welding machine bodies 16 are different. After fine welding, the protruding areas can be scraped off, and then rough welding can be performed for repair.Welding can be performed in various ways, such as fine-coarse-fine, according to different welding requirements. Grinding and intermittent finishing can be performed between individual welds. Hydraulic cylinder 21 operates to adjust the alloy welding below, while electric cylinder 17 operates to adjust the position of the welding machine body 16 left and right, thereby coordinating the welding process.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding apparatus for alloy resistance thermometers, comprising a base (1) with a PLC controller, wherein a dustproof box (2) is fixedly connected to the top of the base (1), characterized in that: A hydraulic cylinder (3) is fixedly installed on the top of the inner wall of the dustproof box (2). A fixed frame (4) is fixedly connected to the output end of the hydraulic cylinder (3). A drive motor (5) is fixedly installed on the inner wall of the fixed frame (4) through a bracket. A lead screw (6) is fixedly connected to the output end of the drive motor (5). A nut seat (7) is connected to the surface of the lead screw (6). A moving platform (8) is fixedly connected to the bottom of the nut seat (7). A moving groove for the moving platform (8) to move is opened at the bottom of the fixed frame (4). A drive motor (9) is fixedly installed inside the moving platform (8). A turntable (10) is fixedly connected to the output end of the drive motor (9). The bottom of the turntable (10) near its circumference is fixedly installed. A drive motor three (11) is fixedly installed. An adjustment frame (12) is fixedly connected to the output end of the drive motor three (11). A drive motor four (13) is fixedly installed on the top of the inner wall of the adjustment frame (12). A threaded rod (14) is fixedly connected to the output end of the drive motor four (13). A threaded sleeve plate (15) is threadedly connected to the surface of the threaded rod (14). A limit component is connected to the side of the threaded sleeve plate (15). A welding machine body (16) is fixedly installed at the bottom of the threaded sleeve plate (15). An electric cylinder one (17) is fixedly installed on the lower surface of the turntable (10) near its middle part. A grinding wheel (18) is fixedly connected to the output end of the electric cylinder one (17). A fan (19) is fixedly mounted on the top of the grinding wheel (18) by a bracket. A filter screen (20) is fixedly connected to the circumference of the grinding wheel (18). The filter screen (20) is located directly below the fan (19). A hydraulic cylinder (21) is fixedly mounted on the inner wall of the base (1). A guide frame (22) with rollers is fixedly connected to the output end of the hydraulic cylinder (21). A guide rail (23) is provided at the bottom of the inner wall of the base (1). The inner wall of the guide rail (23) and the bottom of the guide frame (22) are rolled together. An electric cylinder (24) is fixedly mounted on the top of the guide frame (22). A processing frame (25) is fixedly connected to the output end of the electric cylinder (24). The side of the inner wall of the processing frame (25) is fixedly mounted on the side. An electric cylinder three (26) is installed, and a rectangular plate (27) is fixedly connected to the output end of the electric cylinder three (26). A double-rod hydraulic cylinder (28) is fixedly installed on the surface of the rectangular plate (27). An L-shaped plate (29) is fixedly connected to the output end of the double-rod hydraulic cylinder (28). An anti-slip clamp (30) is fixedly connected to the surface of the L-shaped plate (29). An air exchange groove (31) is opened inside the base (1). A balance plate (32) is fixedly connected to the side of the fixed frame (4). A balance groove (33) is opened on the side of the inner wall of the dustproof box (2). The inner wall of the balance groove (33) and the surface of the balance plate (32) are slidably connected. A dustproof stretch cloth (34) is fixedly connected to the surface of the moving platform (8).The surface of the dustproof stretch fabric (34) is connected to the inner wall of the moving groove, and the interior of the dustproof stretch fabric (34) is connected with an elastic rubber band. The top of the turntable (10) is fixedly connected with a round rod (35). The bottom of the moving table (8) is provided with an annular groove (36). The inner wall of the annular groove (36) is slidably connected to the surface of the round rod (35). The front side of the dustproof box (2) is provided with a hinged sealing door (37). The surface of the sealing door (37) is snapped into the interior of the dustproof box (2). The front side of the sealing door (37) is fixedly connected with a support plate (38). The front side of the dustproof box (2) near its middle is provided with an observation window (39). The limiting component includes a limiting plate (40) and a limiting groove. (41) The limiting plate (40) is fixedly connected to the side of the threaded sleeve plate (15). The limiting groove (41) is opened on the bottom of the adjusting frame (12). The inner wall of the limiting groove (41) and the surface of the limiting plate (40) are slidably connected. A locking plate (42) is fixedly connected to the side of the inner wall of the adjusting frame (12). A locking groove (43) is opened on the top of the threaded sleeve plate (15). The inner wall of the locking groove (43) and the surface of the locking plate (42) are engaged and adapted. A dust filter (44) is fixedly connected to the inner wall of the ventilation groove (31). There are at least two dust filters (44), and the at least two dust filters (44) are distributed in the lower half of the ventilation groove (31).

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