A multi-station welding production equipment and welding process method for network transformer
By designing multi-station welding production equipment and welding process methods in network transformer manufacturing, the problems of insufficient connection strength between the wiring pin and the transformer skeleton, unstable winding coils, and unstable welding joint quality in the welding process are solved, and high-precision and high-reliability network transformer production is achieved.
Patent Information
- Application Number
- CN202510005121.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-04-04
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the existing network transformer manufacturing technology, the connection strength between the wiring pin and the transformer skeleton is insufficient, the winding coil is not firmly fixed inside the skeleton, and the quality of the solder joints in the welding process is unstable, resulting in the product being easily affected by vibration during use and the signal transmission is unstable, making it difficult to meet the demands of modern network equipment for high precision and high reliability.
A multi-station welding production equipment and welding process method of network transformer was designed. By setting a fixing frame and limiting mechanism on the welding platform, the wiring pins were inserted into the T-trough using hydraulic cylinder thrust, and a stable connection was achieved by combining the protruding clamp and the clamping assembly; flexible protective components were added inside the transformer frame, and the winding coils were limited to fix; pads were designed on the top of the wiring pins, and laser welding or spot welding was performed through the welding robot arm to ensure welding quality.
It improves the connection strength and earthquake resistance between the wiring pins and the transformer skeleton, ensures the fixed stability of the winding coil and the stability of signal transmission, improves the firmness and accuracy of the welding points, simplifies the welding process, and improves production efficiency and product reliability.
Smart Images
Figure CN119748010A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of network transformer manufacturing, and in particular to multi-station welding production equipment and a welding process method for a network transformer. Background Art
[0002] As a key electronic component in modern communication equipment, network transformers are widely used in network equipment such as routers, switches, and network cards. Their main functions are to complete signal transmission, impedance matching, and electrical isolation to ensure the stability and security of data transmission. In the current information society, with the popularization of high-speed networks and IoT devices, the demand for network transformers is growing rapidly.
[0003] A multi-station welding production equipment for network transformers realizes efficient production from assembly to welding of network transformers through an automated workflow. The equipment is mainly composed of a workbench, a welding robot arm, and a transport component. Multiple workstations are set on the workbench, and each workstation is responsible for a specific production step, such as the insertion of wiring pins, the fixing and welding of winding coils, etc. The welding robot arm completes the precise welding of wiring pins and winding coils through a high-precision positioning system to ensure the quality of the welds; the transport component efficiently transfers the unprocessed transformer skeleton and the processed finished products to each workstation to achieve continuous production. The coordinated work of the entire set of equipment not only improves production efficiency, but also ensures the assembly accuracy and electrical performance of the network transformer, providing reliable technical support for large-scale industrial production.
[0004] However, in the existing network transformer production technology, the manufacture of network transformers has the following defects and shortcomings: the connection method between the wiring pins and the transformer frame is usually simple plug-in or glue fixation, resulting in insufficient connection strength and easy to loosen or fall off due to vibration; the winding coil lacks an effective limiting structure inside the frame and is not firmly fixed, which can easily cause the coil to shift due to impact during transportation or use, affecting the stability of signal transmission; in addition, the welding process between the wiring pins and the winding coil leads usually relies on manual operation or traditional automated equipment, the quality of the solder joints is unstable, and problems such as cold solder joints or solder joint shedding may occur, which limits production efficiency and product consistency, and is difficult to meet the requirements of modern network equipment for high precision and high reliability. Summary of the invention
[0005] In view of the deficiencies in the prior art, the present invention provides a multi-station welding production equipment and a welding process method for a network transformer, which solves the problems of insufficient connection strength between the wiring pins and the transformer frame, loose fixation of the winding coil inside the frame, and unstable quality of the solder joints in the welding process.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-station welding production equipment and welding process method for a network transformer, comprising a welding platform, a welding robot arm and a transport assembly, wherein the welding robot arm and the transport assembly are respectively located on both sides of the welding platform, the welding robot arm is used to weld the network transformer assembly, and the transport assembly is used to transport the network transformer assembly and press it together, a fixed frame is provided on the top of the welding platform, a transformer skeleton is placed inside the fixed frame, a plurality of limiting mechanisms are arranged inside the transformer skeleton, a bottom plate is provided directly below the transformer skeleton, a plurality of wiring pins are installed inside the bottom plate, and the wiring pins can be plugged into the interior of the transformer skeleton under the action of the transport assembly, a covering assembly is installed on the top of the transformer skeleton, and a plurality of groups of protective components are arranged inside the transformer skeleton.
[0007] Preferably, the transport assembly includes two slide rails and a base 2, the two slide rails are respectively fixed on both sides of the top of the base 2, the top of the slide rails is slidably connected with a slider, and a plurality of hydraulic cylinders are installed inside the welding platform, the hydraulic cylinders are located in the middle of the two slide rails, and the output ends of the hydraulic cylinders abut against the middle of the bottom plate.
[0008] Preferably, recessed portions are provided on both sides of the connection pin, a split portion is provided on the top of the connection pin, and the top of the connection pin is folded to one side to have two flattened portions, and a solder pad is pressed on the top of one of the flattened portions.
[0009] Preferably, the cover assembly includes a cover plate and a buckle, the buckle is engaged with the front protrusion of the transformer frame, and the cover plate is engaged with the top of the transformer frame.
[0010] Preferably, the limiting mechanism comprises a T-slot and a pin slot, both sides of the pin slot are fixedly connected with protruding clamping heads, and a clamping assembly is installed at the position of the connection pin located inside the T-slot.
[0011] Preferably, the protruding clamp is made of rubber material and can be deformed under force, and the two protruding clamps are inserted into the inside of the two recessed parts.
[0012] Preferably, a plurality of limiting mechanisms are provided inside the two side walls of the transformer frame, and the connection pins are inserted into the inside of the T-slot from bottom to top, and the top of the bottom plate is closely attached to the bottom of the transformer frame.
[0013] Preferably, the snap-fit assembly includes a snap-fit block, which is fixedly connected to the outside of the wiring pin, a wiring fixing groove is provided on the side of the snap-fit block away from the T-slot, and a fixing hole is provided inside the snap-fit block, a shell is installed inside the fixing hole, a spring is installed in the middle of the inner side of the shell, and plug connectors are provided at both ends of the spring, and the two plug connectors are plugged into the preset holes inside the T-slot under the elastic force of the spring.
[0014] Preferably, the protective assembly includes a fixed column, a lower protective cover, an upper protective cover and a clamping block. The lower protective cover is sleeved on the outer side of the fixed column. A clamping slot is provided on the outer side of the fixed column. A clamping block is provided on the inner side of the upper protective cover. The clamping block is slidably connected to the inside of the clamping slot. A winding coil is installed between the lower protective cover and the upper protective cover.
[0015] A network transformer welding process method comprises the following steps: First: place the transformer frame in the fixing frame on the top of the welding platform and fix it to ensure its accurate position; Then: the bottom plate and the wiring pins installed on it are moved to the bottom of the transformer frame through the transport assembly, and the wiring pins are inserted into the T-slot of the transformer frame from bottom to top using the thrust of the hydraulic cylinder. The recessed part and the protruding clamp in the limit mechanism are mechanically locked to achieve stable positioning. Then, the welding robot arm accurately aligns the pad on the flattened part of the top of the wiring pin with the lead of the winding coil, and uses laser welding or spot welding technology to complete the welding, and monitors the welding quality in real time; Finally: install the cover assembly, use the cover plate and buckles to encapsulate the frame, and protect the winding coil through the fixing column, lower guard and upper guard of the protective assembly, thus completing the automated assembly and welding process of the entire network transformer.
[0016] The present invention provides a multi-station welding production equipment and welding process method for a network transformer, which has the following beneficial effects: 1. In the present invention, the connection pins are designed to be split and bent, with recessed portions on both sides, and a protruding clamping head is used in the side wall card slot of the transformer frame. When the connection pins are inserted into the card slots, the protruding clamping heads will be inserted into the recessed portions on both sides of the connection pins, and the clamping components connected by the connection pins are acted upon by the springs inside thereof, so that the two plug connectors are inserted into the preset fixing holes in the card slots, thereby realizing a firm connection between the connection pins and the transformer frame, thereby improving the seismic resistance and structural stability of the pins, and simplifying the assembly process.
[0017] 2. In the present invention, a flexible protective component is added inside the transformer frame, the winding coil is installed on the lower shield, and the clamping block on the inner side of the upper shield is slid on the outer side of the fixing column on the inner side of the lower shield. The upper and lower shields serve to limit and fix the winding coil, thereby preventing the coil from shifting due to vibration during transportation or use, thereby improving the impact resistance and signal transmission stability of the network transformer.
[0018] 3. In the present invention, by adding a pad design on the top of the connection pin, and fixing the pad on the top of the split and bent pin by pressing, efficient welding of the winding lead and the pin is achieved, thereby improving the firmness and precision of the welding point, simplifying the welding process, and improving production efficiency and product reliability. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A perspective view of the present invention; Figure 2 is a schematic diagram of a base plate of the present invention; Figure 3 is a schematic diagram of a soldering pad of the present invention; Figure 4 is a schematic diagram of a fixing frame of the present invention; Figure 5 is a schematic diagram of a cover plate of the present invention; Figure 6 is a schematic diagram of a protective assembly of the present invention; Figure 7 is a schematic diagram of a winding coil of the present invention; Figure 8 It is a schematic diagram of the T-slot of the present invention; Fig. 9 is a schematic diagram of a wiring fixing slot of the present invention; Fig.10 is a schematic diagram of a plug connector of the present invention; Fig.11 It is a schematic diagram of a protruding clamp of the present invention.
[0020] Among them, 1. welding platform; 2. welding robot arm; 3. transportation component; 31. base 2; 32. slide rail; 33. slider; 34. hydraulic cylinder; 4. transformer frame; 5. wiring pin; 51. recessed part; 52. split part; 53. flattening part; 54. welding pad; 6. bottom plate; 7. cover component; 71. cover plate; 72. buckle; 8. limit mechanism; 81. T-slot; 82. pin slot; 83. protruding clamp head; 84. snap assembly; 841. wiring fixing slot; 842. fixing hole; 843. plug connector; 844. spring; 845. shell; 846. snap block; 9. protection component; 91. fixing column; 92. lower shield; 93. upper shield; 94. slot; 95. clamp block; 10. winding coil; 11. fixing frame. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0022] Please see attached Figure 1 , Attachment Figure 4 , Attachment Figure 8 , Attachment Fig. 9 , Attachment Fig.10 and attached Fig.11 The embodiment of the present invention provides a multi-station welding production equipment and a welding process method for a network transformer, including a multi-station welding production equipment and a welding process method for a network transformer, including a welding platform 1, a welding robot arm 2 and a transport component 3. The welding platform 1 is the core support structure of the equipment, which is used to carry the transformer skeleton 4 and other components, and provide a stable working foundation for the entire production process. The welding robot arm 2 and the transport component 3 are respectively located on both sides of the welding platform 1, and they cooperate with each other to complete the complete production process of the network transformer from component assembly to final welding. The main function of the welding robot arm 2 is to accurately weld each component, including the welding of the wiring pins 5 and the winding coils 10, as well as other components that require high-precision connection; and the transport component 3 is responsible for the transmission and positioning of the components, and presses the components to ensure that they maintain stability and accuracy during the assembly and welding process.
[0023] A fixing frame 11 is provided on the top of the welding platform 1, and the fixing frame 11 is used to place the transformer skeleton 4. The fixing frame 11 is fixed to the welding platform 1 by bolts and positioning pins. This structure not only provides stable installation of the transformer skeleton 4, but also ensures that the skeleton will not be displaced during the welding process, and provides a precise reference point for subsequent welding and assembly processes. The design of the transformer skeleton 4 internally integrates multiple limiting mechanisms 8, which are used to fix and stabilize the wiring pins 5 and the winding coils 10. The setting of the limiting mechanism 8 ensures that each component can maintain a precise position during welding and assembly, and avoids displacement due to vibration or external force; The limiting mechanism 8 is an important device to ensure the accurate positioning of each component, which is mainly composed of a T-slot 81 and a pin slot 82. The T-slot 81 is used to guide the insertion of the wiring pin 5 so that it can smoothly enter the pin slot 82 along a preset trajectory. Protruding clamps 83 are fixed on both sides of the pin slot 82. These protruding clamps 83 are made of highly elastic rubber material, which can be slightly deformed when the wiring pin 5 is inserted, and reset after the insertion is completed, so as to firmly clamp the wiring pin 5. The recessed portion 51 of the wiring pin 5 is closely matched with the protruding clamp 83 to form a reliable mechanical locking structure, thereby ensuring the stability of the wiring pin 5 and the safety of long-term use.
[0024] In order to further enhance the fixing effect of the connection pin 5, a snap-fit assembly 84 is also introduced into the limiting mechanism 8. The snap-fit assembly 84 is composed of a snap-fit block 846, which is fixedly connected to the outside of the connection pin 5, and a connection fixing groove 841 is provided on the side away from the T-slot 81. The connection fixing groove 841 is used to guide the lead of the winding coil 10 and fix it firmly to facilitate subsequent welding operations. A fixing hole 842 is provided inside the snap-fit block 846, and a shell 845 is installed in the fixing hole 842. A spring 844 is installed in the middle of the shell 845, and plug connectors 843 are installed at both ends of the spring 844. The plug connector 843 can be inserted into the preset hole in the T-slot 81 under the action of the spring 844, thereby further enhancing the positioning and fixing effect of the connection pin 5.
[0025] Please see attached Figure 2 -Attached Figure 3 A bottom plate 6 is installed directly below the transformer frame 4. The bottom plate 6 serves as a mounting base for the wiring pins 5. Its structure and position directly determine whether the wiring pins 5 can be smoothly inserted into the transformer frame 4. A plurality of wiring pins 5 are assembled inside the bottom plate 6. These wiring pins 5 are precisely positioned by the bottom plate 6 and can be accurately inserted into the T-slots 81 inside the transformer frame 4 through the pushing action of the transport assembly 3.
[0026] The design of the connection pin 5 has been strictly optimized to meet the requirements of automated assembly and long-term use. Concave portions 51 are provided on both sides thereof, and these concave portions 51 cooperate with the protruding clamps 83 in the limiting mechanism 8 to achieve mechanical locking, so as to ensure that the connection pin 5 can be firmly fixed after insertion and will not loosen due to external force or vibration. The top of the connection pin 5 is designed as a split portion 52, which can not only enhance the elasticity of the connection pin 5, but also produce appropriate deformation when inserted into the T-slot 81, so as to achieve precise matching with the limiting mechanism 8 inside the transformer skeleton 4. The top of the connection pin 5 is also designed with two flattened portions 53, and a soldering pad 54 is pressed and fixed on the top of one of the flattened portions 53. The soldering pad 54 is used for welding and connecting with the lead wire of the winding coil 10, and its surface is tinned and has excellent anti-oxidation and electrical conductivity. The soldering pad 54 is fixed by a crimping process, and the soldering pad 54 is firmly combined with the flattened portion 53 by special equipment, thereby improving the reliability and durability of the welding point.
[0027] Please see attached Figure 1 , Attachment Figure 2 and attached Figure 4 The transport component 3 is composed of a base 2 31, two slide rails 32 and a plurality of slide blocks 33. The base 2 31 is fixed to the welding platform 1 by bolts to provide stable support for the transport component 3. The slide rails 32 are arranged in parallel on both sides of the top of the base 2 31, and their surfaces are processed with high precision to ensure that the slide blocks 33 slide smoothly on the slide rails 32. The slide blocks 33 are used to carry and move the bottom plate 6. Through the guiding effect of the slide rails 32, the precise transmission of the components can be achieved. A plurality of hydraulic cylinders 34 are also installed in the transport component 3. These hydraulic cylinders 34 are located between the two slide rails 32, and their output ends are connected to the middle of the bottom plate 6. The hydraulic cylinder 34 pushes the wiring pin 5 out of the bottom plate 6 and inserts it into the internal T-slot 81 of the transformer skeleton 4 by providing an upward thrust. The stroke and pressure of the hydraulic cylinder 34 are precisely controlled by the central control system to ensure that the plugging process of the wiring pin 5 is smooth and efficient, and at the same time ensure the positioning accuracy after the pin is plugged in.
[0028] Please see attached Figure 5 -Attached Figure 7 A cover assembly 7 is installed on the top of the transformer frame 4, and the cover assembly 7 is composed of a cover plate 71 and a buckle 72. The cover plate 71 is engaged with the top of the frame, and the buckle 72 is engaged with the protrusion on the front side of the frame. The double fixation ensures that the cover assembly 7 is installed firmly, and at the same time provides effective protection for the internal components to prevent the external environment from affecting the transformer.
[0029] In addition, the equipment is also equipped with a protective component 9 to protect the winding coil 10 and its electrical connection parts. The protective component 9 consists of a fixed column 91, a lower protective cover 92, an upper protective cover 93 and a clamping block 95. The lower protective cover 92 is sleeved on the outer side of the fixed column 91, and a clamping groove 94 is provided on the outer side of the fixed column 91. The inner side of the upper protective cover 93 is provided with a clamping block 95, and the clamping block 95 is slidably connected in the clamping groove 94 of the fixed column 91. The space between the upper and lower protective covers is used to accommodate the winding coil 10. Through this design, the winding coil 10 can be protected from external impact or damage during assembly and transportation, thereby ensuring the stability and reliability of the product.
[0030] The process method for welding using the above device comprises the following steps: First: place the transformer frame 4 in the fixing frame 11 on the top of the welding platform 1 and fix it to ensure its accurate position; Then: the bottom plate 6 and the wiring pins 5 installed thereon are moved to the right below the transformer frame 4 by the transport assembly 3, and the wiring pins 5 are inserted from bottom to top into the T-slot 81 of the transformer frame 4 by the thrust of the hydraulic cylinder 34, and the recessed portion 51 is mechanically locked with the protruding clamp 83 in the limiting mechanism 8 to achieve a stable positioning. Then, the welding robot arm 2 accurately aligns the pad 54 on the top flattened portion 53 of the wiring pin 5 with the lead of the winding coil 10, and completes the welding using laser welding or spot welding technology, and monitors the welding quality in real time; Finally: install the cover assembly 7, use the cover plate 71 and the buckle 72 to encapsulate the frame 4, and at the same time protect the winding coil 10 through the fixing column 91, the lower shield 92 and the upper shield 93 of the protective assembly 9, thereby completing the automated assembly and welding process of the entire network transformer.
[0031] Working principle: The network transformer skeleton 4 is first firmly placed in the fixed frame 11 on the top of the welding platform 1, and the transport component 3 is responsible for transporting the bottom plate 6 and multiple wiring pins 5. The transport component 3 ensures that the bottom plate 6 is stably moved to the specified position through the cooperation of the base 2 31, the slide rail 32 and the slider 33, and inserts the wiring pins 5 from bottom to top into the inside of the transformer skeleton 4 through the output force of the hydraulic cylinder 34, and the bottom plate 6 is clamped at the bottom of the transformer skeleton 4. The recessed part 51 of the wiring pin 5 and the protruding clamp head 83 in the limiting mechanism 8 are mechanically locked. The limiting mechanism 8 is composed of a T-slot 81 and a pin clamping slot 82 to ensure the stability and positioning accuracy of the pin insertion. After the insertion is completed, the pad 54 on the flattened part 53 at the top of the wiring pin 5 is aligned with the lead of the winding coil 10, and the welding robot arm 2 is used for welding. The quality of the welding point is ensured by real-time monitoring to ensure reliability. After welding is completed, the cover assembly 7 seals and protects the top of the transformer frame 4 through the dual structure of the cover plate 71 and the buckle 72. At the same time, the protective assembly 9 cooperates with the fixing column 91, the lower shield 92 and the upper shield 93 to provide comprehensive fixation and protection for the winding coil 10. The whole process completes the efficient and automated production from the plugging and welding of the wiring pins 5 to the final packaging through the multi-station collaboration and precise mechanical design of the equipment, ensuring the stability and quality consistency of the product.
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A multi-station welding production equipment for a network transformer, comprising a welding platform (1), a welding robot arm (2) and a transport component (3), characterized in that: The welding robot arm (2) and the transport component (3) are respectively located on both sides of the welding platform (1); the welding robot arm (2) is used to weld the network transformer components; the transport component (3) is used to transport the components of the network transformer and press them together; a fixing frame (11) is provided on the top of the welding platform (1); a transformer skeleton (4) is placed inside the fixing frame (11); a plurality of limiting mechanisms (8) are arranged inside the transformer skeleton (4); a bottom plate (6) is arranged directly below the transformer skeleton (4); a plurality of wiring pins (5) are installed inside the bottom plate (6); the wiring pins (5) can be plugged into the inside of the transformer skeleton (4) under the action of the transport component (3); a cover component (7) is installed on the top of the transformer skeleton (4); and a plurality of protective components (9) are arranged inside the transformer skeleton (4).
2. The multi-station welding production equipment for network transformers according to claim 1 is characterized in that: The transport assembly (3) comprises two slide rails (32) and a second base (31), the two slide rails (32) being fixed on both sides of the top of the second base (31), respectively, the top of the slide rails (32) being slidably connected to a slider (33), a plurality of hydraulic cylinders (34) being installed inside the welding platform (1), the hydraulic cylinders (34) being located between the two slide rails (32), and the output ends of the hydraulic cylinders (34) being abutted against the middle of the bottom plate (6).
3. The multi-station welding production equipment for network transformers according to claim 1 is characterized in that: Both sides of the connection pin (5) are provided with recessed portions (51), the top of the connection pin (5) is provided with a split portion (52), and the top of the connection pin (5) is folded to one side to form two flattened portions (53), wherein a solder pad (54) is pressed onto the top of one of the flattened portions (53).
4. The multi-station welding production equipment for network transformers according to claim 1 is characterized in that: The cover assembly (7) comprises a cover plate (71) and a buckle (72), wherein the buckle (72) is engaged with a front protrusion of the transformer frame (4), and the cover plate (71) is engaged with a top of the transformer frame (4).
5. The multi-station welding production equipment for network transformers according to claim 3 is characterized in that: The limiting mechanism (8) comprises a T-shaped slot (81) and a pin slot (82), both sides of the pin slot (82) being fixedly connected with protruding clamping heads (83), and a clamping assembly (84) is installed at a portion of the connection pin (5) located inside the T-shaped slot (81).
6. The multi-station welding production equipment for network transformers according to claim 5 is characterized in that: The protruding clamping head (83) is made of rubber material and can be deformed under force, and the two protruding clamping heads (83) are inserted into the inside of the two recessed portions (51).
7. The multi-station welding production equipment for network transformers according to claim 4 is characterized in that: A plurality of limiting mechanisms (8) are provided inside the two side walls of the transformer frame (4), and the connection pins (5) are inserted into the inside of the T-shaped slots (81) from bottom to top, and the top of the bottom plate (6) is tightly attached to the bottom of the transformer frame (4).
8. The multi-station welding production equipment for network transformers according to claim 5 is characterized in that: The snap-fit assembly (84) comprises a snap-fit block (846), the snap-fit assembly (84) being fixedly connected to the outside of the wiring pin (5), a wiring fixing groove (841) being provided on a side of the snap-fit block (846) away from the T-slot (81), and a fixing hole (842) being provided inside the snap-fit block (846), a housing (845) being installed inside the fixing hole (842), a spring (844) being installed in the middle of the inner side of the housing (845), and plug connectors (843) being provided at both ends of the spring (844), and the two plug connectors (843) being plugged into holes preset inside the T-slot (81) by the elastic force of the spring (844).
9. The multi-station welding production equipment for network transformers according to claim 1 is characterized in that: The protection assembly (9) comprises a fixed column (91), a lower protective cover (92), an upper protective cover (93) and a clamping block (95); the lower protective cover (92) is sleeved on the outer side of the fixed column (91); a clamping groove (94) is provided on the outer side of the fixed column (91); a clamping block (95) is provided on the inner side of the upper protective cover (93); the clamping block (95) is slidably connected to the inside of the clamping groove (94); and a winding coil (10) is installed between the lower protective cover (92) and the upper protective cover (93).
10. A network transformer welding process method, based on a network transformer multi-station welding production equipment according to any one of claims 1 to 9, characterized in that: The following steps are involved: First, place the transformer frame (4) in the fixing frame (11) on the top of the welding platform (1) and fix it to ensure that its position is accurate; Then: the bottom plate (6) and the wiring pins (5) installed thereon are moved to the right below the transformer frame (4) by means of the transport assembly (3), and the wiring pins (5) are inserted from bottom to top into the T-slot (81) of the transformer frame (4) by means of the thrust of the hydraulic cylinder (34), and the recessed portion (51) and the protruding clamp (83) in the limiting mechanism (8) are mechanically locked to achieve a stable positioning. Then, the welding robot arm (2) accurately aligns the welding pad (54) on the top flattened portion (53) of the wiring pin (5) with the lead of the winding coil (10), and the welding is completed by using laser welding or spot welding technology, and the welding quality is monitored in real time; Finally, the cover assembly (7) is installed, and the frame (4) is encapsulated by using the cover plate (71) and the buckle (72). At the same time, the winding coil (10) is protected by the fixing column (91), the lower protective cover (92) and the upper protective cover (93) of the protective assembly (9), thereby completing the automated assembly and welding process of the entire network transformer.