An industrial welding equipment for processing of a distribution box shell

Abstract

This invention relates to the field of welding equipment technology and discloses an industrial welding device for processing distribution box housings, including a welding station and an arc welding gun. The arc welding gun is disposed on one side of the welding station and is used to weld the distribution box housing placed on the welding station. A turntable is rotatably mounted on the upper surface of the welding station, and four telescopic plates are slidably mounted in a circular array on the side of the turntable. A rotating arm is rotatably mounted on the telescopic plates. This industrial welding device for processing distribution box housings, by setting up a turntable, telescopic plates, and a synchronous telescopic mechanism, allows the telescopic plates to extend simultaneously to clamp distribution box housings of different sizes from the inside or the side. It eliminates the need to replace or adjust dedicated contour clamping components for each specification of housing, solving the problem of long equipment changeover preparation time and difficulty in adapting to the needs of multi-variety, small-batch production caused by the poor versatility of dedicated clamps in the prior art. It achieves rapid compatibility and reliable fixing of housings of various specifications.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, specifically to an industrial welding device for processing electrical distribution box housings. Background Technology

[0002] Distribution boxes are core devices in power systems for power distribution, line control, and safety protection. Their shells are typically formed by shearing, bending, and welding thin metal sheets. Welding is a crucial process in shell manufacturing, determining structural strength, sealing, and precision. Currently, industrial welding is gradually transitioning from purely manual operations to automated and intelligent equipment. Welding quality and efficiency depend not only on the welding process itself but also on the performance of the clamping fixture. An efficient clamping system must be able to stably and reliably fix the workpiece during welding and easily adjust the workpiece's posture in conjunction with the welding torch's trajectory, thereby ensuring that all weld seams are in the optimal welding position.

[0003] Chinese patent CN119188080B discloses a welding device for distribution boxes, focusing on solving the welding positioning problem at the splicing of the outer corner frames of the side panels of the distribution box. The device has multiple corner frame docking modules on its base. These modules, through contour-designed angular vertical and oblique sealing blocks, engage from the outside to fill the staggered gaps at the corner frame splicing, achieving mechanical reinforcement and fastening of adjacent side panel corner frames. This aims to prevent misalignment of the corner frames due to contact with the welding torch during manual welding. Simultaneously, its internal beam positioning module uses positioning buckles, support plates, and other structures to clamp and position the splicing beams used for installing electrical components inside the box, facilitating welding on the inner wall of the side panels.

[0004] The positioning and clamping functions of the above-mentioned device rely on the contouring module that matches the specific structure of the workpiece. When the external dimensions of the distribution box housing to be welded change, it is often necessary to replace or redesign and adjust these clamping components. This makes it impossible to quickly respond to the production needs of multiple varieties and small batches, resulting in long equipment changeover and preparation times, which restricts production efficiency. The clamping structure of the above-mentioned device is complex, with the corner frame docking module and the inner beam positioning module extending from multiple directions of the workpiece. When placing the workpiece or taking out the finished product, the workpiece needs to carefully avoid or pass through these obstacles, and the operation space for placement and removal is severely limited. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an industrial welding equipment for processing distribution box housings, which features universal clamping, convenient loading and unloading, and automatic rotary welding functions, thus solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: An industrial welding device for processing distribution box housings includes a welding station and an arc welding torch. The arc welding torch is disposed on one side of the welding station and is used to weld the distribution box housing placed on the welding station. A turntable is rotatably mounted on the upper surface of the welding station. Four telescopic plates are slidably mounted in a circular array on the side of the turntable. A rotating arm is rotatably mounted on the telescopic plate, and a pressure roller is mounted on the rotating arm. A friction disc is coaxially disposed above the turntable, and a rotating shaft is coaxially fixedly mounted on the friction disc. An externally threaded pipe is coaxially rotatably mounted on the rotating shaft. The externally threaded pipe can... The turntable is equipped with a synchronous telescopic mechanism and a yielding rotation mechanism. The synchronous telescopic mechanism controls all telescopic plates to extend and retract simultaneously. After two opposite telescopic plates have finished clamping the two sides of the distribution box housing, the other two opposite telescopic plates can continue to extend and retract to complete the clamping. The yielding rotation mechanism controls all rotating arms to rotate synchronously, so that the pressure roller can rotate to below the upper surface of the turntable. The top of the welding station is equipped with a lifting and rotating control mechanism, which controls the rotation of the rotating shaft and the up and down movement of the external threaded tube.

[0007] Preferably, the synchronous telescopic mechanism includes a main gear, a transmission disk, a gear ring, and a flat gear. The main gear is coaxially and rotatably mounted inside the turntable. The transmission disk is rotatably mounted inside the turntable. The gear ring is rotatably mounted on the outer side of the transmission disk and meshes with the main gear. The flat gear is coaxially and fixedly mounted on the transmission disk. One end of the telescopic plate has a notch, and one side wall of the notch has a flat tooth groove that meshes with the flat gear. The transmission disk and the gear ring are connected by a slipperable transmission structure.

[0008] Preferably, the outer sidewall of the transmission disc is provided with a spring groove in a ring array, and a spring and a ball are disposed inside the spring groove. The spring is disposed between the bottom of the spring groove and the ball. The inner sidewall of the toothed ring is provided with a spherical groove in a ring array, and the spherical groove is adapted to the ball.

[0009] Preferably, a clamping control motor is fixedly installed inside the welding station. The output shaft of the clamping control motor extends through the lower surface of the turntable into the interior of the turntable, and the output shaft of the clamping control motor is fixedly connected to the main gear. The two opposite telescopic plates are of the same height, and the two adjacent telescopic plates are of different heights. Two main gears are provided inside the turntable, and the main gears are meshed with two opposite gear rings.

[0010] Preferably, the yielding rotation mechanism includes a sleeve, a slide rod, a transmission gear, an intermediate gear, a rotating ring, and a driven gear. The sleeve is rotatably mounted on the lower surface of the turntable. One end of the slide rod is axially slidably mounted inside the sleeve, and the other end of the slide rod is rotatably connected to the lower surface of the telescopic plate. The transmission gear is fixedly mounted on the outer wall of the sleeve, and the intermediate gear is fixedly mounted on the outer wall of the slide rod. The rotating ring is coaxially rotatably mounted on the lower surface of the turntable, and an outer ring tooth groove is fixedly provided on the outer side of the rotating ring. The outer ring tooth groove meshes with the transmission gear. The driven gear meshes with the intermediate gear, and a horizontal shaft is coaxially fixed on the driven gear. One end of the horizontal shaft is rotatably connected to the corresponding telescopic plate, and the horizontal shaft is fixedly mounted to the lower end of the rotating arm.

[0011] Preferably, a clearance drive motor is fixedly installed on the lower surface of the turntable, a clearance drive gear is fixedly installed at the output end of the clearance drive motor, and an inner ring tooth groove is fixedly provided on the inner sidewall of the turntable, the inner ring tooth groove meshing with the clearance drive gear.

[0012] Preferably, a mounting frame is fixedly installed on the welding platform, and the external threaded pipe is slidably installed on the mounting frame. The lifting and rotating control mechanism includes a nut, a fixed frame, a guide block, a rotating cylinder, a transmission rod, and a second toothed ring. The nut is rotatably installed on the mounting frame and is threadedly connected to the external threaded pipe. The fixed frame is fixedly installed on the upper end of the mounting frame. The guide block is fixedly installed on the upper end of the external threaded pipe and is vertically slidably connected to the inner side wall of the fixed frame. The rotating cylinder is rotatably connected to the top of the fixed frame. The upper end of the transmission rod is slidably installed inside the rotating cylinder, and the lower end of the transmission rod is fixedly connected to the rotating shaft. The second toothed ring is rotatably installed on the outer side wall of the nut, and the second toothed ring is connected to the nut through a slipperable transmission structure.

[0013] Preferably, the outer sidewall of the nut is provided with a spring groove in a ring array, and a spring and a ball are disposed inside the spring groove. The spring is disposed between the bottom of the spring groove and the ball. The inner sidewall of the toothed ring is provided with a spherical groove, which is adapted to the ball.

[0014] Preferably, the lifting and rotating control mechanism further includes a lifting and rotating drive motor, an upper drive shaft, and a lower drive shaft. The upper and lower drive shafts are rotatably mounted on one side wall of the fixed frame and are connected by a synchronous belt pulley. The upper drive shaft is driven by a bevel gear, the output shaft of the lifting and rotating drive motor is driven by a gear, and the lower drive shaft is driven by a bevel gear. When the friction disc descends to abut against the upper surface of the distribution box housing to be welded, the friction disc can continue to rotate and drive the distribution box housing and the turntable to rotate.

[0015] Compared with the prior art, the present invention provides an industrial welding equipment for processing distribution box housings, which has the following beneficial effects: This industrial welding equipment for processing distribution box housings, by setting up a turntable, a telescopic plate and a synchronous telescopic mechanism, allows the telescopic plate to extend simultaneously to clamp distribution box housings of different sizes from the inside or the side. It eliminates the need to replace or adjust special conformal fixture components for each specification of housing, solving the problem of long equipment changeover preparation time and difficulty in adapting to the needs of multi-variety small-batch production caused by the poor versatility of special fixtures in the prior art. It achieves rapid compatibility and reliable fixing of housings of various specifications.

[0016] This industrial welding equipment for processing distribution box housings incorporates a synchronous telescopic mechanism consisting of a transmission disc, a gear ring, a spur gear, and a slip-out transmission structure. A clamping control motor drives the main gear. When the motor drives, power is transmitted to the gear ring via the main gear, which in turn rotates the transmission disc and its spur gear through the slip-out structure. The spur gear meshes with the flat tooth grooves on the telescopic plate to drive its movement. This design allows a single drive source to control the telescopic movement of all telescopic plates, achieving centralized drive and synchronous control of the clamping action. Furthermore, the staggered arrangement of the telescopic plates and two independent main gear transmission groups ensures that after two opposing telescopic plates complete clamping, the other pair can temporarily slip through the slip-out structure when encountering resistance. After minor adjustments to the workpiece position, clamping can continue, thus achieving adaptive clamping for irregular or slightly deviated housings, enhancing clamping reliability and fault tolerance.

[0017] This industrial welding equipment for processing distribution box housings incorporates a clearance rotation mechanism comprising a sleeve, slide bar, transmission gear, intermediate gear, rotating ring, and driven gear. A clearance drive motor drives the rotating ring to rotate. When the motor drives the clearance drive gear, it rotates the rotating ring with inner and outer ring tooth grooves. The rotating ring drives the transmission gear through the outer ring tooth groove, causing the sleeve to rotate. The sleeve transmits motion to the driven gear through the internal slide bar and intermediate gear, ultimately driving the horizontal shaft with fixed rotating arms to rotate. This linkage structure allows all rotating arms to rotate synchronously and precisely. In the non-working state, the pressure roller can be rotated below the upper surface of the turntable, providing unobstructed operating space for placing and removing the housing. In the clamping working state, it can be rotated back to press the housing from above. This design solves the problem of complex clamping structures hindering loading and unloading, enabling smooth connection between the welding and logistics processes, and improving the continuity and efficiency of the overall operation. Attached Figure Description

[0018] Figure 1 This is one of the three-dimensional structural schematic diagrams of the industrial welding equipment for processing the distribution box housing according to the present invention; Figure 2This is the second three-dimensional structural schematic diagram of the industrial welding equipment for processing the distribution box housing of the present invention; Figure 3 This is the third three-dimensional structural schematic diagram of the industrial welding equipment for processing the distribution box housing of the present invention; Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the local structure at point A; Figure 5 This is a partial exploded view of the synchronous telescopic mechanism in this invention; Figure 6 This is the fourth three-dimensional structural schematic diagram of the industrial welding equipment for processing the distribution box housing of the present invention; Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the local structure at point B; Figure 8 This is the fifth three-dimensional structural schematic diagram of the industrial welding equipment for processing the distribution box housing of the present invention; Figure 9 For the present invention Figure 8 Enlarged schematic diagram of the local structure at point C; Figure 10 This is a partial structural exploded view of the lifting and rotating control mechanism in this invention.

[0019] In the picture: 1. Welding station; 11. Mounting bracket; 2. Turntable; 21. Telescopic plate; 211. Notch; 212. Flat tooth groove; 22. Rotary arm; 3. Pressure roller; 4. Friction disc; 41. Rotating shaft; 42. External threaded pipe; 5. Synchronous telescopic mechanism; 51. Main gear; 52. Transmission disc one; 521. Spring groove one; 522. Spring one; 523. Ball bearing one; 53. Gear ring one; 531. Spherical groove one; 54. Flat gear; 56. Clamping control motor; 6. Yielding rotation mechanism; 61. Sleeve; 62. Slide rod; 63. Transmission gear; 64. Intermediate gear; 65. Rotary ring; 651. Outer ring tooth groove; 652. Inner ring tooth groove; 66. Driven gear; 661. Horizontal shaft; 67. Yielding drive motor; 68. Yielding drive gear; 7. Lifting and rotating control mechanism; 71. Nut; 711. Spring groove two; 712. Spring two; 713. Ball two; 72. Fixing frame; 73. Guide block; 74. Rotary cylinder; 75. Transmission rod; 76. Gear ring two; 761. Spherical groove two; 77. Lifting and rotating drive motor; 78. Upper transmission shaft; 79. Lower transmission shaft; 8. Arc welding torch. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0021] Please see Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 10 This invention provides an industrial welding device for processing distribution box housings, including a welding station 1 and an arc welding gun 8. The arc welding gun 8 is disposed on one side of the welding station 1 and is used to weld the distribution box housing placed on the welding station 1. A turntable 2 is rotatably mounted on the upper surface of the welding station 1. Four telescopic plates 21 are slidably mounted in a circular array on the side of the turntable 2. A rotating arm 22 is rotatably mounted on the telescopic plate 21, and a pressure roller 3 is mounted on the rotating arm 22. A friction disc 4 is coaxially disposed above the turntable 2. A rotating shaft 41 is coaxially fixedly mounted on the friction disc 4. An externally threaded pipe 42 is coaxially rotatably mounted on the rotating shaft 41. 2. It can be raised and lowered and moved; the turntable 2 is equipped with a synchronous telescopic mechanism 5 and a yielding rotation mechanism 6. The synchronous telescopic mechanism 5 is used to control all the telescopic plates 21 to extend and retract simultaneously. After two opposite telescopic plates 21 have finished clamping the two sides of the distribution box housing, the other two opposite telescopic plates 21 can continue to extend and retract to complete the clamping. The yielding rotation mechanism 6 is used to control all the rotating arms 22 to rotate synchronously, so that the pressure roller 3 can rotate to the lower part of the upper surface of the turntable 2. The top of the welding station 1 is equipped with a lifting and rotating control mechanism 7. The lifting and rotating control mechanism 7 is used to control the rotation of the rotating shaft 41 and the up and down movement of the external threaded tube 42.

[0022] As can be seen from the above, this embodiment discloses an industrial welding equipment for processing distribution box housings, providing a workstation integrating universal clamping, posture adjustment, and welding assistance. The turntable 2 serves as a platform for carrying and rotating the workpiece, and four radially extendable telescopic plates 21 constitute the basic clamping unit. The rotating arm 22 and pressure roller 3 are used to press the workpiece from above. The synchronous telescopic mechanism 5 achieves unified control of the telescopic movement of all the telescopic plates 21. The clearance rotation mechanism 6 controls the rotation of the rotating arm 22 to make room during loading and unloading. Simultaneously, if the rotating arm 22 obstructs welding, it can be rotated to avoid obstruction. The friction disc 4 located above the turntable 2 and its lifting and rotating control mechanism 7 jointly achieve upward clamping and driving of the workpiece. The rotating function of the entire equipment aims to solve the problems of poor versatility, limited loading and unloading space, and inconvenience in adjusting the welding posture of workpieces caused by special fixtures in the prior art. In this application, when placing the distribution box housing to be welded, the two side plates, bottom plate, top plate and back plate of the distribution box housing are first assembled and spliced ​​together. Since the ends of the plates of the distribution box housing can be spliced, the spliced ​​distribution box housing can maintain a certain degree of stability even when welding is not performed. Based on this, when welding the distribution box housing in this application, the end of the spliced ​​distribution box housing without the box door is placed downwards, so that one end of the side plate, bottom plate, top plate and back plate is in contact with the upper surface of the turntable 2. At the same time, the distribution box housing is kept in the middle position of the upper surface of the turntable 2 as much as possible.

[0023] When using this device, firstly, the yielding rotation mechanism 6 drives all rotating arms 22 to rotate outward, so that the pressure roller 3 is below the upper surface of the turntable 2, thereby leaving unobstructed space for the placement of the distribution box housing. After placing the housing to be welded on the turntable 2, the synchronous telescopic mechanism 5 is activated, driving the four telescopic plates 21 to extend simultaneously from the side of the turntable 2, so that their ends contact the inner wall or side wall of the housing, achieving initial centering and radial support for the housing. After the telescopic plates 21 contact the housing, the yielding rotation mechanism 6 drives the rotating arms 22 to rotate inward. The rotation resets the pressure roller 3, pressing it against the upper edge or top plate of the housing from above, creating vertical constraints to prevent the housing from tilting during welding. After clamping, the lifting and rotating control mechanism 7 is operated to drive the external threaded tube 42 to descend, causing the friction disc 4 to move downwards until it is pressed against the upper surface of the housing. At the same time, the rotating shaft 41 is controlled to rotate, causing the friction disc 4 to rotate. Through friction, the housing and the rotating disc 2 are driven to rotate slowly together. The operator or the automatic welding gun can then continuously weld the circumferential weld of the housing on one side of the welding station 1 without repeatedly adjusting the workpiece position. Example 2

[0024] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 8 and Figure 9As shown, the difference between this embodiment and the above embodiment is that the synchronous telescopic mechanism 5 includes a main gear 51, a transmission disk 52, a gear ring 53, and a flat gear 54. The main gear 51 is coaxially rotatably mounted inside the turntable 2. The transmission disk 52 is rotatably mounted inside the turntable 2. The gear ring 53 is rotatably mounted on the outer side of the transmission disk 52 and meshes with the main gear 51. The flat gear 54 is coaxially fixedly mounted on the transmission disk 52. One end of the telescopic plate 21 has a notch 211. A flat tooth groove 212 is provided on one side wall of the notch 211. The flat tooth groove 212 meshes with the flat gear 54. The transmission disk 52 and the gear ring 53 are connected by a slipperable transmission structure.

[0025] As can be seen from the above, the main gear 51 transmits power to the gear ring 53 that meshes with it. The gear ring 53 and the transmission disk 52 are connected by a slipperable transmission structure. Under normal circumstances, the torque can be transmitted to the transmission disk 52. The transmission disk 52 drives the spur gear 54 on it to rotate. The spur gear 54 meshes with the spur tooth groove 212 opened in the notch 211 of the telescopic plate 21, thereby converting the rotational motion into the linear telescopic motion of the telescopic plate 21. This design enables a single drive source to synchronously drive multiple telescopic plates 21 through the gear transmission chain, realizing centralized control and synchronous execution of the clamping action.

[0026] The outer side wall of the transmission disc 52 is provided with spring grooves 521 in a ring array. Springs 522 and balls 523 are arranged inside the spring grooves 521. Springs 522 are arranged between the bottom of the spring grooves 521 and the balls 523. The inner side wall of the toothed ring 53 is provided with spherical grooves 531 in a ring array. The spherical grooves 531 are adapted to the balls 523.

[0027] As can be seen from the above, the slip-away transmission structure between the transmission disc 52 and the gear ring 53 is specifically composed of a spring 522 and a ball 523 opened in the spring groove 521 on the outer side wall of the transmission disc 52, and a spherical groove 531 opened in the inner side wall of the gear ring 53. When the ball 523 is inserted into the spherical groove 531 under the thrust of the spring 522, the two form a transmission connection and the torque can be transmitted. When the load on the side of the transmission disc 52 is too large, for example, when the corresponding telescopic plate 21 has clamped the workpiece and cannot continue to move, the ball 523 can overcome the elastic force of the spring 522 and disengage from the spherical groove 531, causing the gear ring 53 to slip relative to the transmission disc 52. This structure provides overload protection for the clamping process and allows each set of telescopic plates 21 to move independently when encountering different resistances.

[0028] A clamping control motor 56 is fixedly installed inside the welding station 1. The output shaft of the clamping control motor 56 extends through the lower surface of the turntable 2 into the interior of the turntable 2, and the output shaft of the clamping control motor 56 is fixedly connected to the main gear 51. The two opposite telescopic plates 21 are at the same height, and the two adjacent telescopic plates 21 are at different heights. Two main gears 51 are provided inside the turntable 2, and the main gears 51 are meshed with two opposite gear rings 53.

[0029] As can be seen from the above, by setting two main gears 51 and setting two opposing telescopic plates 21 to the same height, and two adjacent telescopic plates 21 to different heights, a staggered arrangement can be achieved. The two main gears 51 drive two sets of opposing telescopic plates 21 respectively. When the clamping control motor 56 is driven, the two main gears 51 rotate synchronously and drive their respective transmission chains. This layout allows one set of opposing telescopic plates 21 to contact and clamp first when clamping irregular or slightly dimensionally deviated shells. At this time, the corresponding transmission chain may slip due to increased resistance, while the other set of opposing telescopic plates 21 can continue to extend until clamping is completed, thereby achieving adaptive clamping and improving the tolerance to workpiece size fluctuations. Example 3

[0030] like Figure 2 , Figure 8 and Figure 9 As shown, the difference between this embodiment and the above embodiment is that the yielding rotation mechanism 6 includes a sleeve 61, a slide rod 62, a transmission gear 63, an intermediate gear 64, a rotating ring 65, and a driven gear 66. The sleeve 61 is rotatably mounted on the lower surface of the turntable 2. One end of the slide rod 62 is axially slidably mounted inside the sleeve 61, and the other end of the slide rod 62 is rotatably connected to the lower surface of the telescopic plate 21. The transmission gear 63 is fixedly mounted on the outer wall of the sleeve 61, the intermediate gear 64 is fixedly mounted on the outer wall of the slide rod 62, and the rotating ring 65 is coaxially rotatably mounted on the lower surface of the turntable 2. An outer ring tooth groove 651 is fixedly provided on the outer side of the rotating ring 65. The outer ring tooth groove 651 is meshed with the transmission gear 63, and the driven gear 66 is meshed with the intermediate gear 64. A horizontal shaft 661 is coaxially fixed on the driven gear 66. One end of the horizontal shaft 661 is rotatably connected to the corresponding telescopic plate 21, and the horizontal shaft 661 is fixedly mounted to the lower end of the rotating arm 22.

[0031] As can be seen from the above, when the rotating ring 65 rotates, the outer ring tooth groove 651 fixed on the outer side of the rotating ring 65 meshes with the transmission gear 63, driving the transmission gear 63 and its coaxial sleeve 61 to rotate. The rotation of the sleeve 61 is transmitted through the internally slidingly connected slide rod 62. The intermediate gear 64 fixed on the slide rod 62 rotates accordingly. The intermediate gear 64 meshes with the driven gear 66, driving the driven gear 66 and its coaxial horizontal shaft 661 to rotate. Finally, the horizontal shaft 661 drives the rotating arm 22 fixed on it to complete the rotation action. The entire transmission chain converts a single rotation input into a synchronous angle output of multiple rotating arms 22.

[0032] A clearance drive motor 67 is fixedly installed on the lower surface of the turntable 2. A clearance drive gear 68 is fixedly installed at the output end of the clearance drive motor 67. An inner ring tooth groove 652 is fixedly provided on the inner side wall of the rotating ring 65. The inner ring tooth groove 652 meshes with the clearance drive gear 68.

[0033] As can be seen from the above, by setting the yielding drive motor 67, the yielding drive gear 68 and the rotating ring 65 with the inner ring tooth groove 652, a compact and reliable drive source is provided for the entire yielding rotation mechanism 6. The yielding drive motor 67 is fixedly installed below the turntable 2, and the yielding drive gear 68 at its output end and the inner ring tooth groove 652 on the inner side of the rotating ring 65 form an internal meshing gear pair. Example 4

[0034] like Figure 6 , Figure 7 and Figure 10 As shown, the difference between this embodiment and the above embodiment is that a mounting frame 11 is fixedly installed on the welding station 1, and the external threaded pipe 42 is slidably installed on the mounting frame 11. The lifting and rotating control mechanism 7 includes a nut 71, a fixed frame 72, a guide block 73, a rotating drum 74, a transmission rod 75, and a toothed ring 76. The nut 71 is rotatably installed on the mounting frame 11 and is threadedly connected to the external threaded pipe 42. The fixed frame 72 is fixedly installed on the upper end of the mounting frame 11. The guide block 73 is fixedly installed on the upper end of the external threaded pipe 42 and is vertically slidably connected to the inner side wall of the fixed frame 72. The rotating drum 74 is rotatably connected to the top of the fixed frame 72. The upper end of the transmission rod 75 is slidably installed inside the rotating drum 74, and the lower end of the transmission rod 75 is fixedly connected to the rotating shaft 41. The toothed ring 76 is rotatably installed on the outer side wall of the nut 71, and the toothed ring 76 is connected to the nut 71 through a detachable transmission structure.

[0035] As can be seen from the above, the nut 71 is rotatably mounted on the mounting bracket 11 and forms a threaded connection with the external threaded tube 42 coaxially sleeved outside the rotating shaft 41. The guide block 73 is fixed to the external threaded tube 42 and constrained by the fixed bracket 72, and can only slide up and down. Therefore, when the nut 71 rotates, it can drive the external threaded tube 42 together with the rotating shaft 41 and the friction disk 4 to rise and fall as a whole. Its rotation function is realized by the transmission rod 75. The lower end of the transmission rod 75 is fixed to the rotating shaft 41, and the upper end is slidably inserted into the rotating drum 74. When the rotating drum 74 rotates, the torque is transmitted to the rotating shaft 41 through the transmission rod 75, driving the friction disk 4 to rotate.

[0036] The outer side wall of the nut 71 is provided with spring grooves 711 arranged in a ring. Spring 712 and ball 713 are arranged inside the spring grooves 711. Spring 712 is located between the bottom of the spring groove 711 and ball 713. The inner side wall of the toothed ring 76 is provided with spherical grooves 761, which are adapted to ball 713.

[0037] As can be seen from the above, the nut 71 and the toothed ring 76 are connected by a slipperable transmission structure. This structure is similar in principle to the slipperable structure in Embodiment 2. It consists of a spring groove 711, a spring 712, a ball 713, and a spherical groove 761. Its function is that after the friction disc 4 descends and presses the upper surface of the workpiece, if the nut 71 continues to rotate, the external threaded tube 42 cannot continue to descend because the workpiece has already been pressed against it. At this time, the transmission connection between the nut 71 and the toothed ring 76 will slip, thereby cutting off the downward feed power and playing an overload protection role. At the same time, the slipperable structure ensures that after the friction disc 4 presses the workpiece, the drive system can still continue to drive the friction disc 4 to rotate through the rotating drum 74 and the transmission rod 75 without interfering with the lifting drive.

[0038] The lifting and rotating control mechanism 7 also includes a lifting and rotating drive motor 77, an upper drive shaft 78, and a lower drive shaft 79. The upper drive shaft 78 and the lower drive shaft 79 are rotatably mounted on one side wall of the fixed frame 72, and the upper drive shaft 78 and the lower drive shaft 79 are connected by a synchronous belt pulley. The upper drive shaft 78 is connected to the rotating drum 74 by bevel gear meshing. The output shaft of the lifting and rotating drive motor 77 is connected to the lower drive shaft 79 by gear meshing. The lower drive shaft 79 is connected to the gear ring 2 76 by bevel gear meshing. When the friction disc 4 descends to abut against the upper surface of the distribution box housing to be welded, the friction disc 4 can continue to rotate and drive the distribution box housing and the turntable 2 to rotate.

[0039] As can be seen from the above, the lifting and rotating actions of the friction disc 4 are coordinated and controlled by a lifting and rotating drive motor 77, an upper drive shaft 78, a lower drive shaft 79, and transmission components such as a synchronous pulley and a bevel gear. The lifting and rotating drive motor 77 drives the lower drive shaft 79 to rotate. On the one hand, the bevel gear drives the gear ring 76 to rotate, which in turn drives the nut 71 to rotate through the slipperable structure, thus controlling the lifting and lowering of the friction disc 4. On the other hand, the synchronous pulley transmits power to the upper drive shaft 78. The upper drive shaft 78 then drives the rotating drum 74 to rotate through the bevel gear, which in turn drives the friction disc 4 to rotate through the transmission rod 75. This allows a single motor to control the friction disc 4 to first descend and press the workpiece, and then drive the workpiece to rotate while maintaining the pressing force.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An industrial welding device for processing distribution box housings, comprising a welding station (1) and an arc welding gun (8), wherein the arc welding gun (8) is disposed on one side of the welding station (1) for welding the distribution box housing placed on the welding station (1), characterized in that: A turntable (2) is rotatably mounted on the upper surface of the welding station (1). Four telescopic plates (21) are slidably mounted in a circular array on the side of the turntable (2). A rotating arm (22) is rotatably mounted on the telescopic plate (21). A pressure roller (3) is mounted on the rotating arm (22). A friction disc (4) is coaxially arranged above the turntable (2). A rotating shaft (41) is coaxially fixedly mounted on the friction disc (4). An external threaded pipe (42) is coaxially rotatably mounted on the rotating shaft (41). The external threaded pipe (42) can be raised and lowered. A synchronous telescopic mechanism (5) and a clearance rotation mechanism are provided on the turntable (2). (6) The synchronous telescopic mechanism (5) is used to control all the telescopic plates (21) to telescopically extend and retract simultaneously. After two opposite telescopic plates (21) have finished clamping the two sides of the distribution box housing, the other two opposite telescopic plates (21) can continue to extend and retract to complete the clamping. The yielding rotation mechanism (6) is used to control all the rotating arms (22) to rotate synchronously, so that the pressure roller (3) can rotate to the lower surface of the turntable (2). The top of the welding station (1) is provided with a lifting and rotating control mechanism (7). The lifting and rotating control mechanism (7) is used to control the rotation of the rotating shaft (41) and the up and down movement of the external threaded tube (42).

2. The industrial welding equipment for processing distribution box housings according to claim 1, characterized in that: The synchronous telescopic mechanism (5) includes a main gear (51), a transmission disk (52), a gear ring (53), and a flat gear (54). The main gear (51) is coaxially rotatably mounted inside the turntable (2). The transmission disk (52) is rotatably mounted inside the turntable (2). The gear ring (53) is rotatably mounted on the outer side of the transmission disk (52) and meshes with the main gear (51). The flat gear (54) is coaxially fixedly mounted on the transmission disk (52). One end of the telescopic plate (21) is provided with a notch (211). A flat tooth groove (212) is provided on one side wall of the notch (211). The flat tooth groove (212) meshes with the flat gear (54). The transmission disk (52) and the gear ring (53) are connected by a slip-out transmission structure.

3. The industrial welding equipment for processing distribution box housings according to claim 2, characterized in that: The outer sidewall of the transmission disc (52) is provided with spring grooves (521) in an annular array. Springs (522) and balls (523) are provided inside the spring grooves (521). Springs (522) are located between the bottom of the spring grooves (521) and balls (523). The inner sidewall of the toothed ring (53) is provided with spherical grooves (531) in an annular array. Spherical grooves (531) are adapted to balls (523).

4. The industrial welding equipment for processing distribution box housings according to claim 2, characterized in that: The welding station (1) is fixedly installed with a clamping control motor (56). The output shaft of the clamping control motor (56) extends through the lower surface of the turntable (2) into the interior of the turntable (2), and the output shaft of the clamping control motor (56) is fixedly connected to the main gear (51). The two opposite telescopic plates (21) are at the same height, and the two adjacent telescopic plates (21) are at different heights. The turntable (2) is provided with two main gears (51), and the main gears (51) mesh with two opposite gear rings (53).

5. The industrial welding equipment for processing distribution box housings according to claim 1, characterized in that: The yielding rotation mechanism (6) includes a sleeve (61), a slide rod (62), a transmission gear (63), an intermediate gear (64), a rotating ring (65), and a driven gear (66). The sleeve (61) is rotatably mounted on the lower surface of the turntable (2). One end of the slide rod (62) is axially slidably mounted inside the sleeve (61), and the other end of the slide rod (62) is rotatably connected to the lower surface of the telescopic plate (21). The transmission gear (63) is fixedly mounted on the outer wall of the sleeve (61), and the intermediate gear (64) is fixedly mounted on the slide rod. (62) The outer wall of the rotating ring (65) is coaxially rotatably mounted on the lower surface of the turntable (2), and the outer side of the rotating ring (65) is fixedly provided with an outer ring tooth groove (651). The outer ring tooth groove (651) is meshed with the transmission gear (63). The driven gear (66) is meshed with the intermediate gear (64), and a horizontal shaft (661) is coaxially fixed on the driven gear (66). One end of the horizontal shaft (661) is rotatably connected to the corresponding telescopic plate (21), and the horizontal shaft (661) is fixedly mounted to the lower end of the rotating arm (22).

6. The industrial welding equipment for processing distribution box housings according to claim 5, characterized in that: A clearance drive motor (67) is fixedly installed on the lower surface of the turntable (2), and a clearance drive gear (68) is fixedly installed at the output end of the clearance drive motor (67). An inner ring tooth groove (652) is fixedly provided on the inner side wall of the rotating ring (65), and the inner ring tooth groove (652) meshes with the clearance drive gear (68).

7. The industrial welding equipment for processing distribution box housings according to claim 1, characterized in that: A mounting bracket (11) is fixedly installed on the welding station (1). The external threaded pipe (42) is slidably installed on the mounting bracket (11). The lifting and rotating control mechanism (7) includes a nut (71), a fixing bracket (72), a guide block (73), a rotating drum (74), a transmission rod (75), and a gear ring (76). The nut (71) is rotatably installed on the mounting bracket (11), and the nut (71) is threadedly connected to the external threaded pipe (42). The fixing bracket (72) is fixedly installed on the upper end of the mounting bracket (11). The block (73) is fixedly installed on the upper end of the external threaded pipe (42), and the guide block (73) is vertically slidably connected to the inner side wall of the fixed frame (72). The rotating drum (74) is rotatably connected to the top of the fixed frame (72). The upper end of the transmission rod (75) is slidably installed inside the rotating drum (74), and the lower end of the transmission rod (75) is fixedly connected to the rotating shaft (41). The toothed ring II (76) is rotatably installed on the outer side wall of the nut (71), and the toothed ring II (76) and the nut (71) are connected by a slipperable transmission structure.

8. The industrial welding equipment for processing distribution box housings according to claim 7, characterized in that: The outer wall of the nut (71) is provided with a spring groove (711) in a ring array. The spring groove (711) is provided with a spring (712) and a ball (713). The spring (712) is located between the bottom of the spring groove (711) and the ball (713). The inner wall of the toothed ring (76) is provided with a spherical groove (761) which is adapted to the ball (713).

9. The industrial welding equipment for processing distribution box housings according to claim 7, characterized in that: The lifting and rotating control mechanism (7) also includes a lifting and rotating drive motor (77), an upper drive shaft (78), and a lower drive shaft (79). The upper drive shaft (78) and the lower drive shaft (79) are rotatably mounted on one side wall of the fixed frame (72), and the upper drive shaft (78) and the lower drive shaft (79) are connected by a synchronous belt pulley. The upper drive shaft (78) is connected to the rotating drum (74) by bevel gear meshing. The output shaft of the lifting and rotating drive motor (77) is connected to the lower drive shaft (79) by gear meshing. The lower drive shaft (79) is connected to the gear ring (76) by bevel gear meshing. When the friction disc (4) descends to abut against the upper surface of the distribution box housing to be welded, the friction disc (4) can continue to rotate and drive the distribution box housing and the turntable (2) to rotate.

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