Distribution box welding tool and welding method

Abstract

The embodiment of the application provides a power distribution box welding tool and a welding method, and relates to the field of power distribution boxes. The power distribution box welding tool comprises a fixed box, the top of the fixed box is fixedly connected with a processing table, and the inner cavities of the fixed box are respectively provided with a driving assembly and a limiting assembly which are used in cooperation with the processing table; the periphery of the processing table is provided with a marking assembly; one side of the fixed box is fixedly connected with a protective cover, and the side, away from the fixed box, of the protective cover is respectively provided with a rotating assembly and a positioning assembly. The power distribution box welding tool and the welding method are characterized in that, through cooperation of the driving assembly, the limiting assembly, the marking assembly, the rotating assembly, the positioning assembly and the transfer assembly, two groups of long-side side plates, two groups of wide-side side plates and the bottom plate and the top plate in the up-down position of the power distribution box are quickly positioned, transferred and turned, the power distribution box welding operation is facilitated, manual operation is replaced, time and labor are saved, the welding forming efficiency of the power distribution box is improved, and the safety is high.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of distribution boxes, in particular to a distribution box welding tool and a welding method. BACKGROUND

[0002] The distribution box is a low-voltage distribution device composed of switchgear, measuring instruments, protective appliances and auxiliary equipment assembled in a closed or semi-closed metal cabinet or on a screen according to electrical wiring requirements. During normal operation, the distribution box can be connected or disconnected by means of manual or automatic switches. In case of fault or abnormal operation, the distribution box can cut off the circuit or alarm by means of protective appliances, and display various parameters during operation by means of measuring instruments. Some electrical parameters can be adjusted, and the deviation from the normal working state can be prompted or a signal can be sent.

[0003] The distribution box is often used in each power supply, distribution and substation, and is usually processed by welding. Since the distribution box is composed of two groups of long side plates, two groups of wide side plates, and bottom plates and top plates at the upper and lower positions, during welding of the distribution box by workers, the side plates, bottom plates and top plates are usually pressed and welded. Not only is it time-consuming and labor-intensive, but the sparks during welding also cause harm to workers, and the efficiency is also relatively low. SUMMARY

[0004] The application aims to at least solve one of the technical problems in the prior art that the traditional manual pressing method is used to weld the side plates, bottom plates and top plates of the distribution box, which is time-consuming and labor-intensive, and the efficiency is also relatively low, and the sparks during welding also cause harm to workers. To this end, the application provides a distribution box welding tool and a welding method.

[0005] The distribution box welding tool according to the application comprises a fixed box, a processing table is fixedly connected to the top of the fixed box, and a driving assembly and a limiting assembly are arranged in the inner cavity of the fixed box and used in cooperation with the processing table.

[0006] Marking assemblies are arranged around the processing table.

[0007] A protective cover is fixedly connected to one side of the fixed box, and a rotating assembly and a positioning assembly are arranged on the side away from the fixed box of the protective cover.

[0008] According to some embodiments of the application, the driving assembly comprises a double-head motor, the double-head motor is fixed at the bottom of the inner cavity of the fixed box, one output shaft of the double-head motor is fixedly connected with a first driving bevel gear, a first driven bevel gear is engaged on one side of the first driving bevel gear, the top of the first driven bevel gear is fixedly connected with a second driving bevel gear, second driven bevel gears are arranged around the second driving bevel gear, and a screw rod is arranged on the other side of the four second driven bevel gears.

[0009] According to some embodiments of the present application, the limiting assembly includes sliding rails, four groups of the sliding rails are arranged around the machining table, four groups of the lead screws are embedded in the inner cavity of the second driving bevel gear and are fixedly connected with the second driven bevel gear, the surfaces of the four groups of the lead screws are threadedly connected with threaded sleeves, the top of the threaded sleeve is fixedly connected with a sliding frame which is in sliding connection with the sliding rail, the side of the four groups of the sliding frame away from the threaded sleeve is fixedly connected with a support arm, the other side of the support arm is fixedly connected with a first suction pump, and the air inlet of the four groups of the first suction pump is communicated with a first suction disc.

[0010] According to some embodiments of the present application, the marking assembly includes X-axis electric sliding rails, two groups of the X-axis electric sliding rails are arranged on the two sides of the machining table, the surfaces of the two groups of the X-axis electric sliding rails are slidingly connected with X-axis electric sliding rail sliding seats, the other two sides of the machining table are provided with Z-axis electric sliding rails, the surfaces of the two groups of the Z-axis electric sliding rails are slidingly connected with Z-axis electric sliding rail sliding seats, the top of the two groups of the X-axis electric sliding rail sliding seats and the Z-axis electric sliding rail sliding seats are fixedly connected with infrared signal sensors which are used in cooperation with the first suction disc.

[0011] According to some embodiments of the present application, the rotating assembly includes a second electric push rod, the second electric push rod is embedded in the other output shaft of the double-head motor, the piston rod of the second electric push rod is fixedly connected with a buckle head, the inner cavity of the protective cover close to the fixed box is rotatably connected with a first turntable, the side of the first turntable is provided with a buckle groove which is used in cooperation with the buckle head, the inner cavity of the protective cover away from the fixed box is rotatably connected with a second turntable which is used in cooperation with the first turntable, the periphery of the first turntable and the second turntable is embedded with a sliding sleeve, and the inner wall of the sliding sleeve is slidingly connected with a bent rod.

[0012] According to some embodiments of the present application, the positioning assembly includes a support, the support is fixed at the center of the second turntable away from the first turntable, the side of the support away from the protective cover is embedded with a circuit breaker, the other side of the support away from the protective cover is fixedly connected with a main electromagnet which is used in cooperation with the circuit breaker, and the periphery of the main electromagnet is fixedly connected with auxiliary electromagnets which are used in cooperation with the circuit breaker through support plates.

[0013] According to some embodiments of the present application, the side of the fixed box is fixedly connected with a ground rail frame, the ground rail frame is provided with a transfer assembly, the transfer assembly includes an elongated pneumatic cylinder, the elongated pneumatic cylinder is fixed on the side of the ground rail frame, the piston rod of the elongated pneumatic cylinder is fixedly connected with a pushing rod, the other side of the pushing rod is fixedly connected with a base, the periphery of the bottom of the base is rotatably connected with pulleys which are used in cooperation with the ground rail frame, the top of the base is fixedly connected with a steering seat, the top of the steering seat is provided with an industrial robot arm, the side of the industrial robot arm away from the steering seat is provided with a second suction pump, the air inlet of the second suction pump is communicated with a second suction disc, and the side of the second suction pump is fixedly connected with an industrial camera which is used in cooperation with the second suction disc.

[0014] According to some embodiments of this application, a placement groove for use with a slide rail is provided at the center of the top of the processing table, and scale grooves for use with an infrared signal sensor are provided around the processing table.

[0015] According to some embodiments of this application, the processing table is provided with T-shaped grooves around the perimeter near the scale groove, and the inner cavity of the T-shaped groove is slidably connected to a T-shaped slider that is fixedly engaged with the X-axis electric slide rail slide and the Z-axis electric slide rail slide.

[0016] The welding method for the distribution box, based on the welding fixture described above, includes the following steps:

[0017] Step 1: First, the worker places the four sets of metal side panels of the distribution box onto the four sets of first suction cups. The four sets of metal side panels consist of two sets of long side panels and two sets of wide side panels, placed opposite each other and level. Then, the four sets of first suction pumps are activated, and the four sets of metal side panels are pre-attached and fixed using the first suction cups. Next, the first electric push rods inside the four lead screws are activated. Once the four sets of first electric push rods drive the four sets of second driven bevel gears to move inwards and reach the meshing position of the second driving bevel gears, the second electric push rods are in the [position missing]. After closing the initial state, the dual-head motor is turned on, and the second drive bevel gear on the first driven bevel gear rotates synchronously through the first drive bevel gear. The second drive bevel gear drives the first electric push rods on the four sets of second driven bevel gears to rotate synchronously. The four sets of first electric push rods drive the four lead screws to rotate synchronously. The four lead screws drive the four sets of threaded sleeves to move synchronously inward. The four sets of slides and slide rails provide sliding limit compensation for the four sets of support arms. Then the four sets of threaded sleeves drive the first suction cups on the four sets of first suction pumps to move synchronously inward through the four sets of support arms. Then the four sets of first suction cups drive the four sets of metal side plates after adsorption and positioning to move synchronously inward.

[0018] Step Two: Simultaneously, control the two sets of X-axis and Z-axis electric slide rails to open synchronously. The two sets of X-axis and Z-axis electric slide rails will correspondingly move their respective slide blocks according to the current dimensions of the distribution box's length and width. These slide blocks will also move the four sets of infrared signal sensors along the machining table until they are positioned to match the dimensions of the current distribution box's length and width. Align the sensors with the graduated grooves on the machining table. The signal sensor positions are rechecked. When the four metal side plates on the four first suction cups reach the positions of the four infrared signal sensors one after the other, the first electric push rods in the four lead screws are closed one after another, and the four second driven bevel gears are disengaged from the meshing position of the second drive bevel gears and reset to the initial state. Then the four metal side plates reach the predetermined positions according to the current long and wide side length specifications of the distribution box, and the positioning work of the four metal side plates is completed. The workers then perform welding work on the edges of the four metal side plates after they are in place to complete the welding work of the four-sided frame of the distribution box.

[0019] Step 3: After the welding of the four sets of metal side plates is completed, the long cylinder is activated and the push rod drives the pulley on the base to push forward to the first position point within the ground rail frame. Then, the steering seat provides steering support compensation for the industrial robotic arm. The industrial robotic arm drives the second suction cup on the second suction pump to reach one side of the four sets of metal side plates that have completed the welding work. The industrial camera takes a picture of the reached position for positioning. Then, the second suction pump is activated and the second suction cup is used to adsorb and position one side of the four sets of metal side plates. After the four sets of metal side plates are adsorbed and positioned, the industrial robotic arm drives the four sets of metal side plates that have completed the welding work to turn towards the protective cover. Similarly, the long cylinder continues to drive the four sets of metal side plates that have completed the welding work on the industrial robotic arm to move forward to the second position point. The four sets of metal side plates that have completed the welding work are placed on the main electromagnet and the four sets of auxiliary electromagnets. The circuit breaker is activated to energize the main electromagnet and the four sets of auxiliary electromagnets. After being energized, the main electromagnet and the four sets of auxiliary electromagnets use electromagnetic attraction force to adsorb and position the four sets of metal side plates that have completed the welding work, and wait for the state to change.

[0020] Step 4: Next, control the second electric push rod to open and drive the buckle head to engage in the buckle slot on the first turntable. At this time, the four sets of first electric push rods are in the initial closed state. Then, control the dual-head motor to drive the first turntable to rotate through the second electric push rod. The first turntable drives the bent rod to rotate through the sliding sleeve. The bent rod drives the bracket on the second turntable to rotate. The bracket drives the four sets of metal side plates that have been adsorbed and positioned and have completed welding work through the main electromagnet and four sets of auxiliary electromagnets to rotate as a whole to the first state. When the industrial robotic arm uses the second suction pump and the second suction cup to adsorb and move the pre-placed distribution box base plate to the reserved position of the base of the four sets of metal side plates, the worker then performs welding work between the four sets of metal side plates and the base plate after it has been placed in place, completing the welding work of the base of the distribution box. Then, continue to drive the four sets of metal side plates to rotate to the second state. Similarly, the top plate of the distribution box is adsorbed and moved to the reserved position of the top seat of the four sets of metal side plates and welded on it, thus completing the overall welding work of the distribution box frame.

[0021] Step 5: Then, the workers use an ultrasonic flaw detector to inspect the weld points of the four metal side plates, bottom plate, and top plate of the distribution box. After the inspection is qualified, the metal side plates with reserved door positions are cut and slotted, and the hinges and door with lock are installed on the distribution box in sequence. Finally, the workers open holes, slot and spray paint on other parts of the distribution box to obtain the finished distribution box.

[0022] The beneficial effects of this application are as follows: During the welding of the distribution box, the dual-head motor of the drive assembly first provides a unified drive source. The gear transmission of the first drive bevel gear, the first driven bevel gear, the second drive bevel gear, and the second driven bevel gear engages to drive four sets of lead screws to rotate synchronously. Then, the first electric push rod of the limit assembly adjusts the stroke position of the four sets of second driven bevel gears, and through the four sets of threaded sleeves, it drives the four sets of slides and the four sets of first suction pumps and first suction cups on the support arms to adjust the two sets of long side plates and two sets of wide side plates of the distribution box according to... The specifications of the distribution box are adjusted inwards. The welding fixtures and methods for this distribution box are then implemented. Simultaneously, two sets of X-axis electric slide rails and slide blocks, and two sets of Z-axis electric slide rails and slide blocks from the marking assembly drive four sets of infrared signal sensors to mark the long and wide sides according to the distribution box specifications. This provides displacement marks for the two sets of long and wide side plates on the four first suction cups, ensuring that the two sets of long and wide side plates reach their predetermined positions, facilitating subsequent welding work on the two sets of long and wide side plates. Next, the second electric push rod of the rotating assembly provides stroke adjustment compensation for the latching head and the latching slot on the first turntable, and drives the second turntable to rotate through the sliding sleeve and the bent rod. The second turntable then drives the bracket of the positioning assembly to rotate, and the circuit breaker provides power supply and circuit breaking control to the main electromagnet and four sets of auxiliary electromagnets, realizing the state transition effect of the side panel frame of the distribution box after adsorption and positioning, which is conducive to the welding work of the bottom plate and top plate of the distribution box. During the welding of the side panel frame, bottom plate and top plate of the distribution box, the long cylinder of the transfer assembly provides push. The system delivers a drive source and uses push rods and pulleys to move the industrial robotic arms on the base and steering seat for displacement adjustment. The industrial robotic arms, second suction pump, second suction cup, and industrial camera then perform transfer operations on the side panel frame, bottom plate, and top plate of the distribution box. This facilitates the welding of the two sets of long side panels, two sets of wide side panels, and the bottom and top plates at the upper and lower positions of the distribution box. It saves time and labor, improves the welding efficiency of the distribution box, and replaces manual operation to prevent welding sparks from injuring workers and improve safety.

[0023] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1This is a three-dimensional structural schematic diagram of the welding fixture and welding method for the distribution box according to an embodiment of this application;

[0026] Figure 2 This is a three-dimensional rear view of the welding fixture and welding method for the distribution box according to an embodiment of this application;

[0027] Figure 3 This is a three-dimensional structural diagram of the side plate, bottom plate, and top plate of the distribution box, which is a welding fixture and welding method for the distribution box according to an embodiment of this application.

[0028] Figure 4 This is a three-dimensional structural diagram of the distribution box structure in transit state, showing the welding fixture and welding method for the distribution box according to an embodiment of this application.

[0029] Figure 5 This is a partial side cross-sectional view of the three-dimensional structure of the welding fixture and welding method for the distribution box according to an embodiment of this application;

[0030] Figure 6 This is a front view of the structure of the driving component, limiting component, rotating component, and positioning component according to an embodiment of this application;

[0031] Figure 7 This is a partial side cross-sectional view of the drive component and limit component structure according to an embodiment of this application;

[0032] Figure 8 This is a partial side view of the structure of the driving component, rotating component, and positioning component according to an embodiment of this application;

[0033] Figure 9 This is a top view of the marker component structure according to an embodiment of this application;

[0034] Figure 10 This is a bottom view of the transfer component structure according to an embodiment of this application;

[0035] Figure 11 This is a partial rear sectional view of the fixed box, processing table, and ground rail frame structure according to an embodiment of this application.

[0036] Icons: 1. Fixed box; 2. Machining table; 3. Drive assembly; 31. Dual-head motor; 32. First drive bevel gear; 33. First driven bevel gear; 34. Second drive bevel gear; 35. Second driven bevel gear; 36. Lead screw; 4. Limiting assembly; 41. Slide rail; 42. First electric push rod; 43. Threaded sleeve; 44. Carriage; 45. Support arm; 46. First suction pump; 47. First suction cup; 5. Marking assembly; 51. X-axis electric slide rail; 52. X-axis electric slide rail slide block; 53. Z-axis electric slide rail; 54. Z-axis electric slide rail slide block; 55. Infrared signal sensor; 6. Protective cover; 7. Rotary assembly Components; 71. Second electric push rod; 72. Buckle head; 73. First turntable; 74. Buckle groove; 75. Second turntable; 76. Sliding sleeve; 77. Bent rod; 8. Positioning assembly; 81. Bracket; 82. Circuit breaker; 83. Main electromagnet; 84. Auxiliary electromagnet; 9. Ground rail frame; 10. Transfer assembly; 101. Long cylinder; 102. Push rod; 103. Base; 104. Pulley; 105. Steering seat; 106. Industrial robotic arm; 107. Second suction pump; 108. Second suction cup; 109. Industrial camera; 11. Placement slot; 12. Scale groove; 13. T-shaped slide; 14. T-shaped slider. Detailed Implementation

[0037] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0043] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] The following describes, with reference to the accompanying drawings, the welding fixture and welding method for the distribution box according to embodiments of this application.

[0046] like Figures 1-11 As shown, the welding fixture for the distribution box according to the embodiment of this application includes: a fixed box 1, a processing table 2 fixedly connected to the top of the fixed box 1, and a drive assembly 3 and a limiting assembly 4 that cooperate with the processing table 2 respectively in the inner cavity of the fixed box 1;

[0047] Marking components 5 are installed around the four sides of the processing table 2;

[0048] A protective cover 6 is fixedly connected to one side of the fixed box 1. A rotating component 7 and a positioning component 8 are respectively provided on the side of the protective cover 6 away from the fixed box 1.

[0049] like Figures 7 to 10 As shown, the drive assembly 3 includes a dual-head motor 31, which is fixed to the bottom of the inner cavity of the fixed box 1. One output shaft of the dual-head motor 31 is fixedly connected to a first drive bevel gear 32, and a first driven bevel gear 33 meshes with one side of the first drive bevel gear 32. A second drive bevel gear 34 is fixedly connected to the top of the first driven bevel gear 33, and second driven bevel gears 35 are arranged around the second drive bevel gear 34. A lead screw 36 is arranged on the other side of the four sets of second driven bevel gears 35. During the welding of the distribution box, the dual-head motor 31 of the drive assembly 3 provides a unified drive source. The gear transmission of the first drive bevel gear 32, the first driven bevel gear 33, the second drive bevel gear 34, and the second driven bevel gear 35 drives the four sets of lead screws 36 to rotate synchronously.

[0050] The limiting component 4 includes slide rails 41. Four sets of slide rails 41 are opened around the processing table 2. Four sets of lead screws 36 are embedded in the inner cavity of the second drive bevel gear 34 and are fixedly engaged with the second driven bevel gear 35. The surfaces of the four sets of lead screws 36 are threaded with threaded sleeves 43 and the top of the threaded sleeves 43 is fixedly connected with a slide frame 44 that is slidably engaged with the slide rails 41. The side of the four sets of slide frames 44 away from the threaded sleeves 43 is fixedly connected with a support arm 45 and the other side of the support arm 45 is fixedly connected with a first suction pump 46. The suction ports of the four sets of first suction pumps 46 are connected to a first suction cup 47. The first electric push rod 42 of the limiting component 4 adjusts the stroke position of the four sets of second driven bevel gears 35. The four sets of threaded sleeves 43 drive the four sets of first suction pumps 46 and first suction cups 47 on the four sets of slide frames 44 and support arms 45 to move the two sets of long side plates and two sets of wide side plates of the distribution box inward according to the specifications of the distribution box.

[0051] The marking component 5 includes an X-axis electric slide rail 51, with two sets of X-axis electric slide rails 51 arranged on both sides of the processing table 2. X-axis electric slide rail bases 52 are slidably connected to the surfaces of the two sets of X-axis electric slide rails 51. Z-axis electric slide rails 53 are arranged on the other two sides of the processing table 2, with Z-axis electric slide rail bases 54 slidably connected to the surfaces of the two sets of Z-axis electric slide rail bases 53. Infrared signal transmitters for use with the first suction cup 47 are fixedly connected to the tops of the two sets of X-axis electric slide rail bases 52 and the Z-axis electric slide rail bases 54. Meanwhile, the two sets of X-axis electric slide rails 51 and X-axis electric slide rail slide blocks 52 and the two sets of Z-axis electric slide rails 53 and Z-axis electric slide rail slide blocks 54 driven by the marking assembly 5 drive the four sets of infrared signal sensors 55 to mark the long and wide sides according to the specifications of the power distribution box, providing displacement marks for the two sets of long side plates and two sets of wide side plates on the four sets of first suction cups 47, so that the two sets of long side plates and two sets of wide side plates reach the predetermined position, which is conducive to the subsequent welding work of the two sets of long side plates and two sets of wide side plates;

[0052] The rotating assembly 7 includes a second electric push rod 71, which is embedded in another output shaft of the dual-head motor 31. The piston rod of the second electric push rod 71 is fixedly connected to a buckle head 72. The protective cover 6 is rotatably connected to a first turntable 73 near the inner cavity of the fixed box 1, and a buckle groove 74 that cooperates with the buckle head 72 is opened on one side of the first turntable 73. The protective cover 6 is rotatably connected to a second turntable 75 that cooperates with the first turntable 73 away from the inner cavity of the fixed box 1. Sliding sleeves 76 are embedded around the first turntable 73 and the second turntable 75, and a bent rod 77 is slidably connected to the inner wall of the sliding sleeves 76. The second electric push rod 71 of the rotating assembly 7 provides stroke adjustment compensation for the buckle head 72 and the buckle groove 74 on the first turntable 73, and drives the second turntable 75 to rotate through the sliding sleeves 76 and the bent rod 77.

[0053] The positioning component 8 includes a bracket 81, which is fixed at the center of the second turntable 75 away from the first turntable 73. A circuit breaker 82 is embedded on the side of the bracket 81 away from the protective cover 6. A main electromagnet 83 that works with the circuit breaker 82 is fixedly connected to the other side of the bracket 81 away from the protective cover 6. Auxiliary electromagnets 84 that work with the circuit breaker 82 are fixedly connected to the main electromagnet 83 around its perimeter through support plates. The second turntable 75 then drives the bracket 81 of the positioning component 8 to rotate, and the circuit breaker 82 supplies power and controls the circuit breaking of the main electromagnet 83 and the four sets of auxiliary electromagnets 84. This achieves a state transition effect on the side panel frame of the distribution box after adsorption and positioning, which is beneficial for the welding work of the bottom plate and top plate of the distribution box.

[0054] A ground rail frame 9 is fixedly connected to one side of the fixed box 1. A transfer assembly 10 is installed on the ground rail frame 9. The transfer assembly 10 includes a long cylinder 101, which is fixed to one side of the ground rail frame 9. A push rod 102 is fixedly connected to the piston rod of the long cylinder 101, and a base 103 is fixedly connected to the other side of the push rod 102. Pullers 104 that cooperate with the ground rail frame 9 are rotatably connected to all four sides of the bottom of the base 103. A steering seat 105 is fixedly connected to the top of the base 103, and an industrial robotic arm 106 is installed on the top of the steering seat 105. A second suction pump 107 is installed on the side of the industrial robotic arm 106 away from the steering seat 105, and the suction port of the second suction pump 107 is connected to a second suction cup 108. A second suction cup 108 is fixedly connected to one side of the second suction pump 107. The industrial camera 109 used in conjunction with the plate 108 provides a pushing drive source during the welding of the side panel frame, bottom plate and top plate of the power distribution box. The push drive source is provided by the long cylinder 101 of the transfer assembly 10. The industrial robotic arm 106 on the base 103 and the steering seat 105 is moved and adjusted by the push rod 102 and the pulley 104. The industrial robotic arm 106, the second suction pump 107, the second suction cup 108 and the industrial camera 109 perform the transfer operation of the side panel frame, bottom plate and top plate of the power distribution box. This facilitates the welding of the two sets of long side panels, the two sets of wide side panels and the bottom and top plates of the power distribution box. It saves time and effort, improves the welding efficiency of the power distribution box, and replaces manual operation to prevent the sparks from welding from injuring workers and improve safety.

[0055] The center of the top of the processing table 2 is provided with a placement groove 11 that works with the slide rail 41, which facilitates the alignment of the four metal side plates of the distribution box. The processing table 2 is provided with scale grooves 12 that work with the infrared signal sensor 55, which facilitates the workers to re-inspect the position of the four metal side plates after they are in place, so as to prevent the four metal side plates from being misaligned and improve the welding accuracy of the four metal side plates.

[0056] The machining table 2 is provided with T-shaped slide grooves 13 around the scale groove 12. The inner cavity of the T-shaped slide groove 13 is slidably connected to the T-shaped slider 14, which is fixedly matched with the X-axis electric slide rail 52 and the Z-axis electric slide rail 54. This provides sliding limit compensation for the X-axis electric slide rail 52 and the Z-axis electric slide rail 54, and improves the smoothness of movement of the X-axis electric slide rail 52 and the Z-axis electric slide rail 54.

[0057] The welding method for the distribution box, based on the aforementioned welding fixture, includes the following steps:

[0058] Step 1: First, the worker places the four sets of metal side panels of the distribution box onto the four sets of first suction cups 47. The four sets of metal side panels consist of two sets of long side panels and two sets of wide side panels, placed opposite each other and level. Then, the four sets of first suction pumps 46 are activated, and the four sets of metal side panels are pre-attached and fixed using the first suction cups 47. Next, the first electric push rods 42 inside the four lead screws 36 are activated. Once the four sets of first electric push rods 42 drive the four sets of second driven bevel gears 35 to move inwards and reach the meshing position of the second driving bevel gears 34, the second electric push rods 71 ​​are in the initial closed state. Then, the worker controls... The dual-head motor 31 is turned on and drives the second drive bevel gear 34 on the first driven bevel gear 33 to rotate synchronously through the first drive bevel gear 32. The second drive bevel gear 34 drives the first electric push rod 42 on the four sets of second driven bevel gears 35 to rotate synchronously. The four sets of first electric push rods 42 drive the four lead screws 36 to rotate synchronously. The four lead screws 36 drive the four sets of threaded sleeves 43 to move synchronously inward. The four sets of slides 44 and slide rails 41 provide sliding limit compensation for the four sets of support arms 45. Then the four sets of threaded sleeves 43 drive the first suction cups 47 on the four sets of first suction pumps 46 to move synchronously inward through the four sets of support arms 45. Then the four sets of first suction cups 47 drive the four sets of metal side plates after adsorption and positioning to move synchronously inward.

[0059] Step 2: Simultaneously, control the two sets of X-axis electric slide rails 51 and Z-axis electric slide rails 53 to open synchronously. The two sets of X-axis electric slide rails 51 and Z-axis electric slide rails 53 will correspondingly drive the two sets of X-axis electric slide rail slide blocks 52 and Z-axis electric slide rail slide blocks 54 to move according to the current long and wide side specifications of the distribution box. The two sets of X-axis electric slide rail slide blocks 52 and Z-axis electric slide rail slide blocks 54 will drive the four sets of infrared signal sensors 55 to move along the processing table 2 until the four sets of infrared signal sensors 55 move to the position that conforms to the current long and wide side specifications of the distribution box, and are aligned with the scale grooves 12 on the processing table 2. The positions of the two sets of infrared signal sensors 55 are re-checked. When the four sets of metal side plates on the four sets of first suction cups 47 arrive at the positions of the four sets of infrared signal sensors 55, the first electric push rods 42 in the four screw rods 36 are closed one after another, and the four sets of second driven bevel gears 35 are disengaged from the meshing position of the second drive bevel gears 34 and reset to the initial state. Then the four sets of metal side plates arrive at the predetermined positions according to the current long and wide side length specifications of the distribution box, and the positioning work of the four sets of metal side plates is completed. The workers then perform welding work on the edges of the four sets of metal side plates after they are in place to complete the welding work of the four-sided frame of the distribution box.

[0060] Step 3: After the welding of the four sets of metal side plates is completed, the long cylinder 101 is activated and the push rod 102 drives the pulley 104 on the base 103 to push forward to the first position point within the ground rail frame 9. Then, the steering seat 105 provides steering support compensation for the industrial robotic arm 106. The industrial robotic arm 106 drives the second suction cup 108 on the second suction pump 107 to reach one side of the four sets of metal side plates that have completed the welding work. The industrial camera 109 takes a picture of the reached position for positioning. Then, the second suction pump 107 is activated and the second suction cup 108 is used to adsorb and position one side of the four sets of metal side plates. After the four sets of metal side plates are adsorbed... After the positioning is completed, the industrial robotic arm 106 moves the four sets of metal side plates that have completed the welding work toward the protective cover 6. Similarly, the long cylinder 101 continues to move the four sets of metal side plates that have completed the welding work on the industrial robotic arm 106 forward to the second position point, and places the four sets of metal side plates that have completed the welding work on the main electromagnet 83 and the four sets of auxiliary electromagnets 84. The circuit breaker 82 is then opened to energize the main electromagnet 83 and the four sets of auxiliary electromagnets 84. After being energized, the main electromagnet 83 and the four sets of auxiliary electromagnets 84 use electromagnetic attraction to attract and position the four sets of metal side plates that have completed the welding work, waiting for the state to change.

[0061] Step 4: Next, control the second electric push rod 71 to open and drive the latch head 72 to engage with the latch slot 74 on the first turntable 73. At this time, the four sets of first electric push rods 42 are in the initial closed state. Then, control the dual-head motor 31 to drive the first turntable 73 to rotate through the second electric push rod 71. The first turntable 73 drives the bent rod 77 to rotate through the sliding sleeve 76. The bent rod 77 drives the bracket 81 on the second turntable 75 to rotate. The bracket 81 drives the four sets of metal side plates that have completed the welding work to be attracted, positioned, and welded through the main electromagnet 83 and the four sets of auxiliary electromagnets 84. When the entire assembly rotates to the first state, the industrial robotic arm 106 uses the second suction pump 107 and the second suction cup 108 to adsorb and move the pre-placed bottom plate of the distribution box to the reserved position of the base of the four sets of metal side plates. The worker then performs welding operations between the four sets of metal side plates and the bottom plate after it has been placed, completing the welding work of the base of the distribution box. When the four sets of metal side plates continue to rotate to the second state, the top plate of the distribution box is similarly adsorbed and moved to the reserved position of the top seat of the four sets of metal side plates, and welding operations are performed on it, thus completing the overall welding work of the distribution box frame.

[0062] Step 5: Then, the workers use an ultrasonic flaw detector to inspect the weld points of the four metal side plates, bottom plate, and top plate of the distribution box. After the inspection is qualified, the metal side plates with reserved door positions are cut and slotted, and the hinges and door with lock are installed on the distribution box in sequence. Finally, the workers open holes, slot and spray paint on other parts of the distribution box to obtain the finished distribution box.

[0063] It should be noted that the specific models and specifications of the dual-head motor 31, the first electric push rod 42, the second electric push rod 71, and the long cylinder 101 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0064] The power supply and operating principle of the dual-head motor 31, the first electric push rod 42, the second electric push rod 71 and the long cylinder 101 are clear to those skilled in the art and will not be described in detail here.

[0065] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0066] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A welding fixture for a distribution box, characterized in that, include: A fixed box, the top of which is fixedly connected to a processing table, and the inner cavity of the fixed box is respectively provided with a drive assembly and a limiting assembly that cooperate with the processing table; Marking components are provided around the entire perimeter of the processing table; A protective cover is fixedly connected to one side of the fixed box. A rotating assembly and a positioning assembly are respectively arranged on the side of the protective cover away from the fixed box. The driving assembly includes a dual-head motor, which is fixed to the bottom of the inner cavity of the fixed box. One output shaft of the dual-head motor is fixedly connected to a first driving bevel gear, and a first driven bevel gear meshes with one side of the first driving bevel gear. A second driving bevel gear is fixedly connected to the top of the first driven bevel gear, and second driven bevel gears are arranged around its four sides. Lead screws are arranged on the other side of the four sets of second driven bevel gears. The limiting assembly includes slide rails, which are arranged around the processing table. The lead screws are embedded in the inner cavity of the four sets of second driving bevel gears, and are fixedly matched with the second driven bevel gears. The first electric push rod is assembled. The surfaces of the four sets of lead screws are threadedly connected to threaded sleeves, and the tops of the threaded sleeves are fixedly connected to slide rails that slide against the slide rails. A support arm is fixedly connected to the side of each slide rail away from the threaded sleeve, and a first suction pump is fixedly connected to the other side of the support arm. The suction ports of the four sets of first suction pumps are connected to a first suction cup. The marking assembly includes an X-axis electric slide rail. Two sets of X-axis electric slide rails are arranged on both sides of the processing table. X-axis electric slide rail seats are slidably connected to the surfaces of the two sets of X-axis electric slide rails. Z-axis electric slide rails are arranged on both other sides of the processing table. Z-axis electric slide rail seats are slidably connected to the surfaces of the two sets of Z-axis electric slide rails. The tops of both the X-axis electric slide rail seats and the Z-axis electric slide rail seats are fixedly connected to... The infrared signal sensor used in conjunction with the first suction cup, the rotating assembly includes a second electric push rod, which is embedded in another output shaft of the dual-head motor. The piston rod of the second electric push rod is fixedly connected to a latching head. A first turntable is rotatably connected to the inner cavity of the protective cover near the fixed box, and one side of the first turntable has a latching groove for engaging with the latching head. A second turntable is rotatably connected to the inner cavity of the protective cover away from the fixed box, engaging with the first turntable. Sliding sleeves are embedded around both the first and second turntables, and curved rods are slidably connected to the inner walls of the sliding sleeves. The positioning assembly includes a bracket, which is fixed at the center of the second turntable away from the first turntable. A circuit breaker is embedded on the side of the bracket away from the protective cover. On the other side of the enclosure, a main electromagnet for use with a circuit breaker is fixedly connected. Auxiliary electromagnets for use with the circuit breaker are fixedly connected to the main electromagnet around its perimeter via support plates. A ground rail frame is fixedly connected to one side of the fixed box. A transfer assembly is mounted on the ground rail frame. The transfer assembly includes a long cylinder, which is fixed to one side of the ground rail frame. A push rod is fixedly connected to the piston rod of the long cylinder, and a base is fixedly connected to the other side of the push rod. Pullers for use with the ground rail frame are rotatably connected to the bottom of the base around its perimeter. A steering seat is fixedly connected to the top of the base, and an industrial robotic arm is mounted on the top of the steering seat. A second suction pump is mounted on the side of the industrial robotic arm away from the steering seat, and the suction port of the second suction pump is connected to a second suction cup.An industrial camera for use with a second suction cup is fixedly connected to one side of the second suction pump. A placement groove for use with a slide rail is provided at the center of the top of the processing table. Scale grooves for use with infrared signal sensors are provided around the perimeter of the processing table. T-shaped slide grooves are provided around the perimeter of the processing table near the scale grooves, and T-shaped sliders that are fixedly connected to the X-axis and Z-axis electric slide rails are slidably connected within the inner cavity of the T-shaped slide grooves.

2. A welding method for a distribution box, comprising the welding fixture for a distribution box according to claim 1, characterized in that, Includes the following steps: Step 1: First, the worker places the four sets of metal side panels of the distribution box onto the four sets of first suction cups. The four sets of metal side panels consist of two sets of long side panels and two sets of wide side panels. The four sets of first suction pumps are activated, and the four sets of metal side panels are pre-attached and fixed using the first suction cups. Then, the first electric push rods inside the four lead screws are activated. Once the four sets of first electric push rods drive the four sets of second driven bevel gears to move inwards and reach the meshing position of the second driving bevel gears, the second electric push rods are in the initial closed state. Finally, the dual-head motor is activated. The first drive bevel gear drives the second drive bevel gear on the first driven bevel gear to rotate synchronously. The second drive bevel gear drives the first electric push rod on the four sets of second driven bevel gears to rotate synchronously. The four sets of first electric push rods drive the four lead screws to rotate synchronously. The four lead screws drive the four sets of threaded sleeves to move synchronously inward. The four sets of slides and slide rails provide sliding limit compensation for the four sets of support arms. Then the four sets of threaded sleeves drive the first suction cup on the four sets of first suction pumps to move synchronously inward through the four sets of support arms. Then the four sets of first suction cups drive the four sets of metal side plates after adsorption and positioning to move synchronously inward. Step Two: Simultaneously, control the two sets of X-axis and Z-axis electric slide rails to open synchronously. The two sets of X-axis and Z-axis electric slide rails will correspondingly move their respective slide blocks according to the current dimensions of the distribution box's length and width. These slide blocks will also move the four sets of infrared signal sensors along the machining table until they are positioned to match the dimensions of the current distribution box's length and width. Align the sensors with the graduated grooves on the machining table. The signal sensor positions are rechecked. When the four metal side plates on the four first suction cups reach the positions of the four infrared signal sensors one after the other, the first electric push rods in the four lead screws are closed one after another, and the four second driven bevel gears are disengaged from the meshing position of the second drive bevel gears and reset to the initial state. Then the four metal side plates reach the predetermined positions according to the current long and wide side length specifications of the distribution box, and the positioning work of the four metal side plates is completed. The workers then perform welding work on the edges of the four metal side plates after they are in place to complete the welding work of the four-sided frame of the distribution box. Step 3: After the welding of the four sets of metal side plates is completed, the long cylinder is activated and the push rod drives the pulley on the base to push forward to the first position point within the ground rail frame. Then, the steering seat provides steering support compensation for the industrial robotic arm. The industrial robotic arm drives the second suction cup on the second suction pump to reach one side of the four sets of metal side plates that have completed the welding work. The industrial camera takes a picture of the reached position for positioning. Then, the second suction pump is activated and the second suction cup is used to adsorb and position one side of the four sets of metal side plates. After the four sets of metal side plates are adsorbed and positioned, the industrial robotic arm drives the four sets of metal side plates that have completed the welding work to turn towards the protective cover. Similarly, the long cylinder continues to drive the four sets of metal side plates that have completed the welding work on the industrial robotic arm to move forward to the second position point. The four sets of metal side plates that have completed the welding work are placed on the main electromagnet and the four sets of auxiliary electromagnets. The circuit breaker is activated to energize the main electromagnet and the four sets of auxiliary electromagnets. After being energized, the main electromagnet and the four sets of auxiliary electromagnets use electromagnetic attraction force to adsorb and position the four sets of metal side plates that have completed the welding work, and wait for the state to change. Step 4: Next, control the second electric push rod to open and drive the buckle head to engage in the buckle slot on the first turntable. At this time, the four sets of first electric push rods are in the initial closed state. Then, control the dual-head motor to drive the first turntable to rotate through the second electric push rod. The first turntable drives the bent rod to rotate through the sliding sleeve. The bent rod drives the bracket on the second turntable to rotate. The bracket drives the four sets of metal side plates that have been adsorbed and positioned and have completed welding work through the main electromagnet and four sets of auxiliary electromagnets to rotate as a whole to the first state. When the industrial robotic arm uses the second suction pump and the second suction cup to adsorb and move the pre-placed distribution box base plate to the reserved position of the base of the four sets of metal side plates, the worker then performs welding work between the four sets of metal side plates and the base plate after it has been placed in place, completing the welding work of the base of the distribution box. Then, continue to drive the four sets of metal side plates to rotate to the second state. Similarly, the top plate of the distribution box is adsorbed and moved to the reserved position of the top seat of the four sets of metal side plates and welded on it, thus completing the overall welding work of the distribution box frame. Step 5: Then, the workers use an ultrasonic flaw detector to inspect the weld points of the four metal side plates, bottom plate, and top plate of the distribution box. After the inspection is qualified, the metal side plates with reserved door positions are cut and slotted, and the hinges and door with lock are installed on the distribution box in sequence. Finally, the workers open holes, slot and spray paint on other parts of the distribution box to obtain the finished distribution box.

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