A positioning and welding device for a water pump automatic production line

Abstract

The application discloses a kind of positioning welding equipment of water pump automation production line, including peripheral gear seat, and peripheral gear seat is provided with feeding channel and discharging channel, feeding channel and discharging channel are respectively provided with feeding assembly and discharging assembly above, welding machine is arranged on the outside of feeding channel and discharging channel, welding machine is arranged at equal angle on peripheral gear seat, and the welding head of welding machine is towards the inside of peripheral gear seat, and planetary gear set is engagedly connected in the inside of peripheral gear seat, and the inside of peripheral gear set is engagedly connected with the inside of peripheral gear seat.The application is provided with multiple welding equipment, and utilizes planetary gear set to drive multiple motors to be welded synchronous revolution and rotation, so that motor to be welded corresponds to each welding machine with different welding point position each time and carries out welding, and the mode of multiple welding equipment combination is sequentially welded respectively, so that welding equipment is welded with one point position, and there is a water pump motor offline, to improve water pump motor offline efficiency, and enhance line body flow continuity.

Description

Technical Field

[0001] This invention relates to the field of water pump manufacturing technology, and specifically to a positioning and welding equipment for an automated water pump production line. Background Technology

[0002] A water pump is a machine that transports or pressurizes liquids. It transfers mechanical energy from a prime mover or other external energy to the liquid, increasing its energy. Water pumps are primarily used to transport liquids including water, oil, acids and alkalis, emulsions, suspensions, and liquid metals. The motor, as the core component of a water pump, is responsible for converting electrical energy into mechanical energy to drive the pump. Therefore, the performance of the motor directly affects the efficiency, stability, and lifespan of the water pump. The efficiency of the pump motor determines the pump's energy consumption, reliability determines the failure rate, and the protection level determines the pump's environmental adaptability. In practical use, motor lifespan is a critical weakness in the pump system. Therefore, improving the quality of pump motors and ensuring their durability has become a key development direction for pump manufacturers. The traditional outsourcing model for motors limits the improvement of pump motor quality; therefore, integrating motor production into automated pump production lines has become a trend in large-scale development.

[0003] There are two main types of rotors for water pump motors: squirrel-cage rotors and wound-rotor rotors. Squirrel-cage rotors are suitable for most general applications (such as clean water pumps and centrifugal pumps) due to their simple structure, low cost, and low maintenance. However, wound-rotor motors are required in special applications requiring speed regulation, soft starting, or high starting torque (such as high-power pumps and industrial pumps with frequent start-stop cycles). Wound-rotor motors offer advantages such as good starting performance, flexible speed regulation, strong overload capacity, and high power factor. However, they also have relatively complex structures and higher maintenance costs. Therefore, ensuring their quality during production is crucial.

[0004] In a wound rotor, the coil is wound inside the rotor core slots, with the coil ends leading out. End rings are used to secure the coil ends and connect to external circuitry. For ease of wiring, the three protruding terminals (representing phases A, B, and C) can be directly fixed to the insulating support. See [link to documentation]. Figure 11 The coil ends are wound onto end plates and welded in place. Each coil end corresponds to one end plate, and the end plates are evenly distributed along the rotor circumference and electrically connected to the corresponding terminals. Figure 11(Not shown). To ensure uniform current transmission and reduce the risk of localized overheating, the welds between the coil end and the end piece must be strong and highly consistent. In traditional automated production lines for water pump motors, a single welding machine typically welds multiple weld points sequentially, resulting in a slow welding pace and sluggish production line operation. With the development of automated production lines and the gradual promotion of assembly line operations, multiple welding machines can be linearly deployed on the production line. The water pump motor passes through each welding machine sequentially along the production line, completing the welding of one weld point, thus achieving continuous production. However, the linear layout of welding stations results in a long equipment footprint, and the distance between the end station and the loading point requires additional conveyor mechanisms; more importantly, ensuring the consistency of welding between the coil end and the end piece is difficult. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0006] A positioning welding device for an automated water pump production line includes a welding machine with a welding head, which moves laterally to abut against the welding point of the workpiece to be welded for welding. It also includes a peripheral gear seat, on which a feeding channel, a discharging channel, and multiple welding machines are provided. A feeding assembly and a discharging assembly are respectively provided above the feeding channel and the discharging channel. Multiple welding machines are arranged at equal angles on the peripheral gear seat, with the welding heads of the welding machines facing the inner side of the peripheral gear seat. A planetary gear set is meshed with the inner side of the peripheral gear seat, and the planetary gears of the planetary gear set are meshed with the inner side of the peripheral gear seat.

[0007] When the planetary gear rotates to the position corresponding to the feeding channel, the feeding assembly moves the workpiece to be welded onto the planetary gear;

[0008] The planetary gear set drives the planetary gears to revolve and rotate synchronously in an intermittent manner. The planetary gears rotate around their own axes to change their welding point positions facing the welding machine in turn. The planetary gears also rotate around the sun gear synchronously to rotate their respective welding point positions to correspond with different welding machines for welding.

[0009] When the planetary gear rotates to the position corresponding to the feeding channel, the feeding assembly removes the welded parts that have been welded from the planetary gear.

[0010] As a preferred embodiment of the present invention, the planetary gear set includes a fixedly disposed sun gear and a plurality of planet gears meshing around the sun gear. The planet gears are rotatably connected to a sleeve rod, and the sleeve rod is fixedly connected to a rotating component via a connecting rod. The rotating component is connected to a rotation drive source, and the rotation drive source drives the rotating component to rotate around the axis of the sun gear.

[0011] As a preferred embodiment of the present invention, the welding heads of multiple welding machines are connected in series through a transverse moving structure to perform synchronous transverse welding actions;

[0012] The transverse structure includes a drive motor fixedly mounted on the top of the sun gear. The output shaft of the drive motor is connected to a turntable via a rotary shaft. The turntable has multiple arc grooves arranged in a circular array. An optical axis is set in the arc groove. A push plate is fixedly connected to the optical axis. The push plate is slidably connected in a slide rail. The slide rail is fixedly mounted above the sun gear. The end of the push plate is fixedly connected to the welding head of the welding machine.

[0013] As a preferred embodiment of the present invention, the feeding assembly and the unloading assembly respectively include a feeding slide plate and an unloading slide plate, the feeding slide plate and the unloading slide plate are connected to the arc groove on the turntable through an optical axis, and the far ends of the feeding slide plate and the unloading slide plate are connected to a feeding push rod and an unloading push rod.

[0014] The loading channel is equipped with a carrier for loading the parts to be welded, and the carrier is equipped with loading connecting ears and unloading connecting ears.

[0015] The feeding push rod, through docking with the feeding connecting lug and under the linear drive of the feeding slide retraction, pushes the carrier from the feeding channel onto the planetary gear;

[0016] When the workpiece to be welded on the carrier is completed and rotated to the unloading channel position, the unloading push rod, through docking with the unloading connecting ear and under the linear drive of the extended unloading slide plate, pushes the carrier from the planetary gear onto the unloading channel.

[0017] As a preferred embodiment of the present invention, the two opposite sidewalls of the loading connecting ear and the unloading connecting ear are respectively provided with clearance notches and one-way switches;

[0018] Among them, the one-way switch on the feeding connector is located close to the sun gear, and the one-way switch on the feeding connector can only be opened in the direction away from the sun gear. The clearance notch on the feeding connector is used to disengage from the feeding connector during the linear movement of the feeding slide plate.

[0019] The one-way switch on the feed connecting ear is located away from the sun gear, and the one-way switch on the feed connecting ear can only be opened in the direction closer to the sun gear. The clearance notch on the feed connecting ear is used to disengage from the feed connecting ear during the linear movement of the feed slide retracting.

[0020] As a preferred embodiment of the present invention, a return chain plate is provided in the feeding channel and the unloading channel, and multiple clamping plates are provided on the return chain plate, with a carrier position formed between adjacent clamping plates for placing the carrier.

[0021] As a preferred embodiment of the present invention, limiting grooves are provided on both sides of the bottom surface of the carrier, and an elastic locking pin structure is provided on the planetary gear. The elastic locking pin structure includes a limiting groove formed on the planetary gear, an elastic element is provided in the limiting groove, and a locking pin is provided on the elastic element.

[0022] When the carrier slides onto the planetary gear, the elastic locking pin structure extends elastically and inserts into the limiting groove to limit the axial rotation of the carrier.

[0023] As a preferred embodiment of the present invention, a rotating pressing member is provided in the carrier. The rotating pressing member is used to press the elastic locking pin structure to disconnect the carrier and the planetary gear. The rotating pressing member is rotatably disposed on one side of the limiting groove via a torsion spring shaft. The rotating pressing member can move toward the limiting groove and press the elastic locking pin located in the limiting groove until it is flush with the top surface of the planetary gear.

[0024] The torsion spring shaft is connected to a trigger element, which extends outward and is located inside the feeding connection ear. When the feeding push rod pushes the one-way switch to open toward the sun gear, the feeding push rod simultaneously pushes the trigger element to rotate, and the trigger element can rotate to a position that allows the feeding push rod to pass through the clearance notch.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] This invention arranges multiple welding machines in a circular pattern and uses planetary gear sets to load and rotate the motors to be welded. While reducing the equipment footprint, the motion characteristics of the planetary gear sets drive the workpiece to move and synchronously drive the workpiece to rotate, thereby reducing the number of equipment drive sources required.

[0027] Furthermore, the present invention utilizes a transverse structure to connect multiple welding machines arranged circumferentially, as well as feeding and unloading components, to drive each welding head to spot weld the workpiece in a synchronous manner. This not only improves the consistency of multi-station welding and the overall synchronization of welding actions, but also makes the production cycle of feeding, welding, and unloading on the production line more stable and the production line flow more continuous. Attached Figure Description

[0028] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the planetary gear set in this invention;

[0031] Figure 3 This is a schematic diagram of the transverse sliding structure in this invention;

[0032] Figure 4This is a top view of the present invention, specifically a structural diagram without a feeding slide plate;

[0033] Figure 5 For the present invention Figure 4 The enlarged view at point A is a schematic diagram of the structure of the feeding connection ear;

[0034] Figure 6 For the present invention Figure 1 The enlarged view at point B is a schematic diagram of the structure of the connecting ear for material cutting;

[0035] Figure 7 This is a schematic diagram of the rotating extrusion component in this invention;

[0036] Figure 8 This is a schematic diagram of the limiting groove in the present invention;

[0037] Figure 9 This is a schematic diagram of the overall structure of the present invention, which includes a motor to be welded.

[0038] Figure 10 This is a partial structural schematic diagram of the present invention, specifically a corresponding matching diagram of the welding head and the motor welding point;

[0039] Figure 11 This is a schematic diagram of the structure of the motor to be welded in this invention.

[0040] The labels in the diagram represent the following:

[0041] 1. Welding head; 2. Welding machine; 3. Peripheral gear seat; 4. Feeding channel; 5. Discharging channel; 6. Feeding assembly; 7. Discharging assembly; 8. Planetary gear set; 9. Planetary gears; 10. Sun gear; 11. Sleeve rod; 12. Connecting rod; 13. Rotating component; 14. Rotation drive source; 15. Lateral movement structure; 16. Drive motor; 17. Turntable; 18. Arc groove; 19. Optical axis; 20. Push plate; 21. 21. Slide rail; 22. Loading slide plate; 23. Unloading slide plate; 24. Loading push rod; 25. Unloading push rod; 26. Carrier; 27. Loading connecting ear; 28. Unloading connecting ear; 29. ​​Clearance notch; 30. One-way switch; 31. Return chain plate; 32. Card plate; 33. Limiting groove; 34. Locking pin; 35. Rotating pressing component; 36. Torsion spring shaft; 37. Trigger; 38. End piece; 39. Coil. Detailed Implementation

[0042] 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.

[0043] Example 1

[0044] like Figures 1 to 11 As shown, this invention provides a positioning welding device for an automated water pump production line, including a welding machine 2 with a welding head 1. The welding head 1 is slidably connected to the welding machine 2 and moves laterally to abut against the welding point of the workpiece to be welded for welding. It also includes a peripheral gear seat 3, on which a feeding channel 4, a discharging channel 5, and multiple welding machines 2 are provided. A feeding assembly 6 and a discharging assembly 7 are respectively provided above the feeding channel 4 and the discharging channel 5. The welding machines 2 are located beside the feeding channel 4 and the discharging channel 5, and the multiple welding machines 2 are arranged at equal angles on the peripheral gear seat 3. Figure 1 As shown, the welding machine 2 is arranged circumferentially along the outer contour of the outer gear seat 3. The welding machine 2, together with the loading channel 4 and the unloading channel 5, forms a circular arrangement. The included angles between the welding machine 2, the loading channel 4, and the unloading channel 5 in this circular arrangement are equal to match the circumferentially distributed welding points on the motor to be welded. The welding head 1 of the welding machine 2 is set towards the inner side of the outer gear seat 3 and moves laterally to connect with the welding points of the motor to be welded for welding. A planetary gear set 8 is meshed with the inner side of the outer gear seat 3, and the planet gears 9 of the planetary gear set 8 are meshed with the inner side of the outer gear seat 3.

[0045] like Figure 1 and Figure 2 As shown, the planetary gear set 8 includes a fixedly mounted sun gear 10 and multiple planet gears 9 meshing around the sun gear 10. Each planet gear 9 is coaxially rotatably connected to a sleeve rod 11. The sleeve rod 11 is fixedly connected to a rotating component 13 via a connecting rod 12. The rotating component 13 is connected to a rotation drive source 14, which drives the rotating component 13 to rotate around the axis of the sun gear 10. Specifically, as... Figure 2 As shown, the sun gear 10 can be fixedly mounted on the ground via the main shaft. The fixed sun gear 10 improves the stability of the overall structure during operation, and its top surface provides a mounting surface for components such as the slide rail 21. The rotating component 13 can be... Figure 2 The shown configuration is a toothed rotating sleeve, which is coaxially mounted on the outside of the main rotating shaft. The rotation drive source 14 drives the rotating component 13 to rotate, thereby driving the planetary gear 9 to revolve around the sun gear 10 through the connecting rod 12.

[0046] When the planetary gear 9 rotates to the position corresponding to the feeding channel 4, the feeding assembly 6 moves the workpiece to be welded onto the top surface of the planetary gear 9.

[0047] Planetary gear set 8 drives planetary gear 9 to synchronously revolve and rotate, using intermittent starting. This, in turn, drives the water pump motor on planetary gear 9 to shift and rotate, changing the position of the weld points. For example... Figure 9 and Figure 10As shown, each time the planetary gear set 8 starts, it drives the planetary gear 9 to revolve at a fixed angle. Simultaneously, the planetary gear 9 rotates synchronously at a fixed angle, causing the water pump motor on the planetary gear 9 to move from one point to the next through its revolution (e.g., from the loading channel 4 to the welding machine 2, from the welding machine 2 to the next adjacent welding machine 2, and from the welding machine 2 to the unloading channel 5). At the same time, the water pump motor rotates to align its welding point with the next welding machine 2, thus performing welding. After welding is completed, the planetary gear set 8 starts, and after the planetary gear 9 reaches the next welding machine 2, the planetary gear set 8 stops. This welding action is then repeated cyclically until the planetary gear 9 drives the water pump motor to the unloading channel 5, where the unloading assembly 7 removes the welded water pump motor. In this equipment, the number of welding machines 2 is set to be the same as the number of welding points on the motor to be welded. Each welding machine 2 welds one welding point individually, so that after the planetary gear 9 rotates past all the welding machines 2, the water pump motor welding is completed. Then it continues to rotate to the final position (i.e., the unloading channel 5), where the unloading component 7 removes it, completing one cycle of welding. Then the empty planetary gear 9 rotates to the loading channel 4, where the loading component 6 loads the material, forming a cyclical loading, welding, and unloading process.

[0048] Among them, the planetary gear 9 changes its welding point position facing the welding machine 2 in turn by rotating around its own axis, and the planetary gear 9 rotates its welding point position to correspond to different welding machines 2 in order to perform welding by synchronously revolving around the sun gear 10.

[0049] When the planetary gear 9 rotates to the position corresponding to the unloading channel 5, the unloading assembly 7 removes the welded parts that have been welded from the planetary gear 9.

[0050] like Figure 10 and Figure 11 As shown, the end plates 38 of a wound-rotor water pump motor are often installed in an outward-facing posture to facilitate the winding of the coil 39 into the end plates 38. Therefore, when welding the end plates 38, the welding head 1 of the welding machine 2 often pushes the outward-facing end plates 38 inward laterally to make the end plates 38 and the coil 39 press against each other. This serves two purposes: firstly, to complete the welding, and secondly, to eliminate the gap between the end plates 38 and the coil 39, reduce the weld thickness, and improve the welding quality. In the prior art, when welding multiple water pump motors, multiple drive sources are usually used to control multiple independent welding heads 1 of the welding machine 2 to move laterally to weld the water pump motors sequentially. This embodiment further provides a lateral movement structure 15, such as... Figure 1 , Figure 3 and Figure 9 As shown, the welding heads 1 of multiple welding machines 2 are connected in series through the transverse structure 15, enabling the multiple welding heads 1 to form a synchronous transverse welding action. This results in higher synchronization among the welding machines 2 and a smaller number of drive sources required. Specifically:

[0051] Multiple welding machines 2 have welding heads 1 connected in series via a transverse movement structure 15 to perform synchronous transverse welding actions. For example... Figure 3 As shown, the transverse movement structure 15 includes a drive motor 16 fixedly mounted on the top of the sun gear 10. The drive motor 16 can be fixedly mounted on the main shaft or the disk surface of the sun gear 10. The output axis of the drive motor 16 is connected to a turntable 17 via a rotary shaft. The turntable 17 has multiple arc grooves 18 arranged in a circular array. An optical axis 19 is provided in the arc groove 18. A push plate 20 is fixedly connected to the optical axis 19. The push plate 20 is slidably connected in a slide rail 21. The slide rail 21 is fixedly mounted above the sun gear 10 by a mounting bracket. The end of the push plate 20 is fixedly connected to the welding head 1 of the welding machine 2 to drive the welding head 1 to move laterally linearly to perform welding. The drive motor 16 drives the turntable 17 to rotate, and the push plate 20 slides linearly in the slide rail 21 via the optical axis 19, thereby driving the welding heads 1 of multiple welding machines 2 to move synchronously towards the center for welding, and to move away from the center to leave the welding position.

[0052] Furthermore, such as Figure 3 As shown, the loading assembly 6 and unloading assembly 7 respectively include a loading slide plate 22 and an unloading slide plate 23. The ends of the loading slide plate 22 and the unloading slide plate 23 are slidably connected to the U-shaped ring and supported. The loading slide plate 22 and the unloading slide plate 23 are connected to the arc groove 18 on the turntable 17 through the optical shaft 19. The loading slide plate 22, the unloading slide plate 23 and the push plate 20 have the same structure. All three are slidably arranged in the slide rail 21. When the turntable 17 rotates, the loading slide plate 22 and the unloading slide plate 23 extend and retract synchronously with the push plate 20. The difference is that the far ends of the loading slide plate 22 and the unloading slide plate 23 are connected to the loading push rod 24 and the unloading push rod 25. The push plate 20 performs welding on the welding point by driving the welding head 1 to move laterally, while the loading slide plate 22 and the unloading slide plate 23 simultaneously load and unload the weldment through the loading push rod 24 and the unloading push rod 25 to form a high continuity of the overall equipment.

[0053] Among them, such as Figure 4 and Figure 5 As shown, the feeding channel 4 is provided with a carrier 26 for loading the workpiece to be welded, that is, the workpiece is fixedly mounted on the carrier 26, and the carrier 26 is provided with a feeding connecting ear 27 and a discharging connecting ear 28.

[0054] The feeding push rod 24, through docking with the feeding connecting ear 27 and under the linear drive of the retraction of the feeding slide plate 22, pushes the carrier 26 from the feeding channel 4 onto the planetary gear 9.

[0055] Specifically, one contraction and extension of the push plate 20 constitutes one cycle action. When the push plate 20 contracts, it drives the welding head 1 to abut against the welding point for welding. After welding is completed, the push plate 20 drives the welding head 1 away from the workpiece and extends back to the initial position, completing one welding process.

[0056] like Figure 5 As shown, during the cyclical action of contraction and extension, the feeding push rod 24 initially contracts, docking with the feeding connecting ear 27 to form an integral structure. Then, during contraction (moving towards the sun gear 10), the feeding push rod 24 synchronously drives the carrier 26 to move until it reaches the planetary gear 9, thus loading the weldment. Afterwards, the feeding push rod 24 extends synchronously with the push plate 20 (moving away from the sun gear 10), at which point the feeding push rod 24 disengages from the feeding connecting ear 27, returning to its initial position, while the carrier 26, carrying the weldment, sits on the planetary gear 9. Subsequently, when the carrier 26 has rotated through all the welding machines 2 to complete welding and rotates to the unloading channel 5, the unloading push rod 25, docking with the unloading connecting ear 28 and under the linear drive of the extended unloading slide plate 23, pushes the carrier 26 from the planetary gear 9 onto the unloading channel 5. Specifically, as... Figure 6 As shown, when the feeding push rod 25 retracts synchronously with the push rod, the feeding push rod 25 docks with the feeding connecting ear 28. Then, when the feeding push rod 25 extends outward, it drives the carrier 26 to move down from the planetary gear 9, thus forming the feeding process.

[0057] The following provides one embodiment of the feeding connecting ear 27 and the unloading connecting ear 28. Specifically, as shown... Figure 5 As shown, the feeding connecting ears 27 consist of two square buckles mounted on the carrier 26, each with an internal cavity for the feeding push rod 24 to enter. Two opposing sidewalls of the feeding connecting ears 27 (square buckles) are respectively provided with clearance notches 29 and one-way switches 30. The one-way switch 30 (a switch with a torsion spring that automatically resets) is used when the feeding push rod 24 extends (at which point the feeding push rod 24 finishes one feeding cycle and disengages from the carrier 26 on the planetary gear 9), pushing the one-way switch 30 into the feeding connecting ear 27 from this side. After entering, during the retraction action of the feeding push rod 24, it pushes the opposite side of the one-way switch 30 (at which point the one-way switch 30 cannot be opened), causing the entire carrier 26 to move, thus completing the feeding process. The clearance notches 29 are used to disengage from the square buckles when the feeding push rod 24 extends.

[0058] The one-way switch 30 on the feeding connecting ear 27 is located close to the sun gear 10, and the clearance notch 29 on the feeding connecting ear 27 is located away from the sun gear 10. The one-way switch 30 on the feeding connecting ear 27 can only be opened in the direction away from the sun gear 10. The clearance notch 29 on the feeding connecting ear 27 is used to disengage from the feeding connecting ear 27 during the linear movement of the extending feeding slide plate 22.

[0059] like Figure 5As shown, when the carrier 26 is located on the feeding channel 4, the arrangement direction of the two feeding connecting ears 27 is parallel to the arrangement direction of the bottom ends of the feeding push rod 24. The one-way switch 30 of the feeding connecting ear 27 is set close to the sun gear 10, and the clearance notch 29 on the feeding connecting ear 27 is set away from the sun gear 10. This allows the feeding push rod 24 to disengage from the feeding connection through the clearance notch 29 during its outward extension after feeding one carrier 26. During further extension and retraction, it connects with the feeding connecting ear 27 of the next carrier 26 located on the feeding channel 4 through the one-way switch 30. When the extension and retraction stroke is completed, the feeding push rod 24 connects with the feeding connecting ear 27 of the carrier 26 to be fed, forming a cyclical feeding process, thereby making the feeding process more continuous and automated.

[0060] Similarly, such as Figure 6 As shown, the unloading connecting ears 28 are two square buckles mounted on the carrier 26, which are offset from the loading connecting ears 27, with a certain angle between them. When there are many weld points on the water pump motor, the included angle between the loading connecting ears 27 and the unloading connecting ears 28 is small. In this case, by setting a length difference between the loading connecting ears 27 and the unloading connecting ears 28, or by setting them in layers on the carrier 26, the loading push rod 24 and the unloading push rod 25 can be connected to the push rod in an offset manner, preventing the connecting ears from blocking each other.

[0061] The two opposite sidewalls of the feeding connecting ear 28 are respectively provided with clearance notches 29 and one-way switches 30. For example... Figure 6 As shown, the one-way switch 30 on the unloading connecting ear 28 is positioned away from the sun gear 10, and the one-way switch 30 on the loading connecting ear 27 can only be opened in the direction close to the sun gear 10. The clearance notch 29 on the unloading connecting ear 28 is used to disengage from the unloading connecting ear 28 during the linear motion of the unloading slide plate 23 retracting.

[0062] The one-way switch 30 is used to enter the material feeding connecting ear 28 located on the planetary gear 9 from this side when the material feeding push rod 25 retracts. After entering, the material feeding push rod 25 pushes the opposite side of the one-way switch 30 during its extension, causing the entire carrier 26 to move out of the planetary gear 9. The clearance notch 29 on the material feeding connecting ear 28 is used to disengage the material feeding push rod 25 from the carrier 26 during its retraction after the material feeding push rod 25 has moved the carrier 26 onto the material feeding channel 5.

[0063] Furthermore, such as Figure 4 and Figure 5As shown, a loop chain plate 31 is provided in the feeding channel 4 and the unloading channel 5. Multiple clamping plates 32 are provided on the loop chain plate 31, and adjacent clamping plates 32 form a mounting position for placing the carrier 26. The width of the mounting position can be adjusted by adjusting the spacing of the clamping plates 32. The loop chain plate 31 is rotatably mounted on the feeding channel 4 and the unloading channel 5 via rotating rollers. The loop chain plate 31 can be equipped with a drive unit to drive its rotation to match the feeding and unloading processes. Alternatively, the loop chain plate 31 can be without a drive unit; when the carrier 26 is moved by the feeding push rod 24 and the unloading push rod 25, the carrier 26 pushes the clamping plates 32 to move, thereby rotating the loop chain plate 31 and automatically forming the feeding and unloading processes.

[0064] In this embodiment, the loading push rod 24 and the unloading push rod 25 move synchronously with the push plate 20. During the welding action of the welding head 1, the loading push rod 24 and the unloading push rod 25 complete the loading and unloading actions of the equipment. The overall coordination and synchronization of the equipment are higher, and the kinetic energy is utilized more thoroughly.

[0065] Example 2

[0066] In Embodiment 1, it is understood that there are many ways to connect the carrier 26 and the planetary gear 9. However, considering that the carrier 26 is subjected to inertia and centripetal force during the rotation of the planetary gear set 8, its position may shift on the planetary gear 9, resulting in an error in the matching between the weld point and the welding machine 2. Therefore, this embodiment provides a connection method, such as... Figure 5 and Figure 8 As shown, the carrier 26 on the planetary gear 9 is limited by distributed limit pins to prevent its rotation from causing the weld points to shift. Specifically:

[0067] Limiting grooves 33 are provided on both sides of the bottom surface of the base 26, and an elastic locking pin structure is provided on the planetary gear 9. The elastic locking pin structure includes a limiting groove opened on the planetary gear 9, an elastic element is provided in the limiting groove, and a locking pin 34 is provided on the elastic element, which is similar to the elastic locking bead structure on the umbrella rib.

[0068] When the carrier 26 slides onto the planetary gear 9, the elastic locking pin structure extends elastically and inserts into the limiting groove 33 to limit the axial rotation of the carrier 26.

[0069] The bottom edge of the carrier 26 is rounded. The bottom surface of the carrier 26 first contacts the locking pin 34 and presses it downward. Then, when the limiting groove 33 moves to the position of the locking pin 34, the locking pin 34 extends out and inserts into the limiting groove 33.

[0070] Furthermore, during the material feeding process, when it is necessary to unlock the locking pin 34, the carrier 26 can be directly pushed and pulled by the material feeding push rod 25, so that the edge of the limiting groove 33 squeezes the locking pin 34 to shrink and unlock it.

[0071] However, using this method to unlock the locking pin 34 will result in uneven force distribution on the multiple push plates 20, the feeding push rod 24, and the unloading push rod 25 during the retraction process. This is because when the turntable 17 drives the push plates 20, the feeding slide plate 22, and the unloading slide plate 23 to retract, the push plates 20 exert significant resistance as the welding head 1 presses against the end piece 38, the feeding push rod 24 exerts significant resistance as the carrier 26 compresses the locking pin 34, while the unloading push rod 25 experiences less resistance as it enters the unloading connecting ear 28. This uneven force distribution at the ends can easily lead to problems such as increased operating gaps and structural instability. Therefore, this embodiment provides an alternative method that transforms the resistance experienced by the unloading push rod 25 during extension (causing the carrier 26 to compress the locking pin 34) into the force experienced by the unloading push rod 25 during retraction, thereby achieving equal force distribution on all components. Specifically:

[0072] like Figure 7 and Figure 8 As shown, a rotating pressing member 35 is provided inside the carrier 26. The rotating pressing member 35 is used to press the elastic locking pin structure to disconnect the carrier 26 and the planetary gear 9. The rotating pressing member 35 is rotatably disposed on one side of the limiting groove 33 via the torsion spring shaft 36. The rotating pressing member 35 can move toward the limiting groove 33 and press the elastic locking pin located in the limiting groove 33 until it is flush with the top surface of the planetary gear 9.

[0073] The torsion spring shaft 36 is connected to a trigger 37, which extends outward and is located inside the feeding connecting ear 28. When the feeding push rod 25 pushes the one-way switch 30 to open toward the sun gear 10, the feeding push rod 25 simultaneously pushes the trigger 37 to rotate, and the trigger 37 can rotate to a position that allows the feeding push rod 25 to pass through the clearance notch 29.

[0074] When the feeding push rod 25 breaks through the one-way switch 30 during the retraction motion, the feeding push rod 25 pushes the trigger 37 to move. The trigger 37 rotates through the torsion spring shaft 36 (generating resistance that is transmitted to the feeding push rod 25), which drives the rotating extrusion member 35 to move to the position of the limiting groove 33, so as to extrude the locking pin 34 in the limiting groove 33.

[0075] The rotation angles of the one-way switch 30 and the trigger 37 need to be designed. After the feeding push rod 25 breaks through the one-way switch 30 and enters the feeding connecting ear 28, the one-way switch 30 reverses back to its original position. At this time, the feeding push rod 25 is located between the one-way switch 30 and the trigger 37. The feeding push rod 25 still presses the trigger 37 into the rotating position. Afterwards, the feeding push rod 25 pushes the carrier 26 to move to the feeding channel 5 from the opposite side of the one-way switch 30. When the feeding push rod 25 makes its next retraction movement (i.e., when it moves toward the clearance notch 29), it pushes the trigger 37 to continue rotating until it leaves the movement path of the feeding push rod 25, so as not to interfere with the feeding push rod 25's exit from the clearance notch 29.

[0076] The unloading push rod 25 presses the locking pin 34 through the trigger 37, so that the unloading push rod 25 and the loading push rod 24 simultaneously have the resistance of pressing the locking pin 34 during the retraction process, thereby matching the force of the push plate 20 driving the welding head 1 to press against the end piece 38, forming an equal force, which is beneficial to the protection of the overall structure.

[0077] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A positioning welding device for an automated water pump production line, comprising a welding machine (2) having a welding head (1), the welding head (1) being moved laterally to abut against the welding point of the workpiece to be welded for welding, characterized in that, It also includes an outer gear seat (3), on which a feeding channel (4), a discharging channel (5) and multiple welding machines (2) are provided. A feeding assembly (6) and a discharging assembly (7) are respectively provided above the feeding channel (4) and the discharging channel (5). Multiple welding machines (2) are arranged at equal angles on the outer gear seat (3). The welding head (1) of the welding machine (2) is set towards the inner side of the outer gear seat (3). A planetary gear set (8) is meshed and connected to the inner side of the outer gear seat (3). The planetary gear (9) of the planetary gear set (8) is meshed and connected to the inner side of the outer gear seat (3). When the planetary gear (9) rotates to the position corresponding to the feeding channel (4), the feeding assembly (6) moves the workpiece to be welded onto the planetary gear (9); The planetary gear set (8) drives the planetary gears (9) to revolve and rotate synchronously in an intermittent manner. The planetary gears (9) rotate around their own axes to change their welding point positions facing the welding machine (2) in turn. The planetary gears (9) rotate around the sun gear (10) synchronously to rotate their respective welding point positions to correspond to different welding machines (2) for welding. When the planetary gear (9) rotates to the position corresponding to the feeding channel (5), the feeding assembly (7) removes the welded parts that have been welded from the planetary gear (9); The welding heads (1) of multiple welding machines (2) are connected in series through a transverse structure (15) to perform synchronous transverse welding actions; The transverse structure (15) includes a drive motor (16) fixedly mounted on the top of the sun gear (10). The output shaft of the drive motor (16) is connected to a turntable (17) via a rotary shaft. The turntable (17) has multiple arc slots (18) arranged in a circular array. An optical axis (19) is provided in the arc slot (18). A push plate (20) is fixedly connected to the optical axis (19). The push plate (20) is slidably connected in a slide rail (21). The slide rail (21) is fixedly mounted above the sun gear (10). The end of the push plate (20) is fixedly connected to the welding head (1) of the welding machine (2). The feeding assembly (6) and the unloading assembly (7) include a feeding slide plate (22) and an unloading slide plate (23) respectively. The feeding slide plate (22) and the unloading slide plate (23) are connected to the arc groove (18) on the turntable (17) through the optical axis (19). The far ends of the feeding slide plate (22) and the unloading slide plate (23) are connected to the feeding push rod (24) and the unloading push rod (25). Among them, the loading channel (4) is provided with a carrier (26) for loading the parts to be welded, and the carrier (26) is provided with a loading connecting ear (27) and a unloading connecting ear (28). The feeding push rod (24) pushes the carrier (26) from the feeding channel (4) onto the planetary gear (9) by docking with the feeding connecting ear (27) and under the linear drive of the retraction of the feeding slide plate (22); When the workpiece to be welded on the carrier (26) is completed and rotated to the position of the unloading channel (5), the unloading push rod (25) pushes the carrier (26) from the planetary gear (9) onto the unloading channel (5) by connecting with the unloading connecting ear (28) and under the linear drive of the extension of the unloading slide plate (23).

2. The positioning and welding equipment for an automated water pump production line according to claim 1, characterized in that: The planetary gear set (8) includes a fixed sun gear (10) and multiple planet gears (9) meshing around the sun gear (10). The planet gears (9) are rotatably connected to a sleeve rod (11) on the same axis. The sleeve rod (11) is fixedly connected to a rotating component (13) via a connecting rod (12). The rotating component (13) is connected to a rotation drive source (14). The rotation drive source (14) drives the rotating component (13) to rotate around the axis of the sun gear (10).

3. The positioning and welding equipment for an automated water pump production line according to claim 1, characterized in that: The two opposite side walls of the feeding connecting ear (27) and the unloading connecting ear (28) are respectively provided with a clearance notch (29) and a one-way switch (30); Among them, the one-way switch (30) on the loading connecting ear (27) is located close to the sun gear (10), and the one-way switch (30) on the loading connecting ear (27) can only be opened in the direction away from the sun gear (10). The clearance notch (29) on the loading connecting ear (27) is used to disengage from the loading connecting ear (27) under the linear movement of the loading slide plate (22) extending. The one-way switch (30) on the feed connecting ear (28) is located away from the sun gear (10), and the one-way switch (30) on the feed connecting ear (28) can only be opened in the direction close to the sun gear (10). The clearance notch (29) on the feed connecting ear (28) is used to disengage from the feed connecting ear (28) under the linear motion of the feed slide (23) retracting.

4. The positioning and welding equipment for an automated water pump production line according to claim 3, characterized in that: The loading channel (4) and unloading channel (5) are equipped with a loop chain plate (31), and multiple clamping plates (32) are provided on the loop chain plate (31). The adjacent clamping plates (32) form a carrier position for placing the carrier (26).

5. A positioning welding device for an automated water pump production line according to claim 3, characterized in that: Limiting grooves (33) are provided on both sides of the bottom surface of the carrier (26), and an elastic locking pin structure is provided on the planetary gear (9). The elastic locking pin structure includes a limiting groove opened on the planetary gear (9), an elastic element is provided in the limiting groove, and a locking pin (34) is provided on the elastic element. When the carrier (26) slides onto the planetary gear (9), the elastic locking pin structure extends elastically and inserts into the limiting groove (33) to limit the axial rotation of the carrier (26).

6. A positioning welding device for an automated water pump production line according to claim 5, characterized in that: A rotating extruder (35) is provided inside the carrier (26). The rotating extruder (35) is used to extrude the elastic locking pin (34) structure to disconnect the carrier (26) and the planetary gear (9). The rotating extruder (35) is rotatably set on one side of the limiting groove (33) via the torsion spring shaft (36). The rotating extruder (35) can move toward the limiting groove (33) and extrude the elastic locking pin (34) located in the limiting groove (33) until it is flush with the top surface of the planetary gear (9). The torsion spring shaft (36) is connected to a trigger (37). The trigger (37) extends outward and is located inside the feeding connecting ear (28). When the feeding push rod (25) pushes the one-way switch (30) to open toward the sun gear (10), the feeding push rod (25) simultaneously pushes the trigger (37) to rotate, and the trigger (37) can rotate to a position that allows the feeding push rod (25) to pass through the clearance notch (29).

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