Automatic welding device for transformer shell

Abstract

The invention discloses an automatic welding device for a transformer shell, and relates to the technical field of automatic welding. Supporting columns are arranged at the corners of the top of the base correspondingly, two supporting flat plates are arranged at the tops of the supporting columns and symmetrically distributed around the axis of the base, transmission assemblies are arranged in the supporting flat plates, electric sliding rails are arranged on the left sides of the tops of the supporting flat plates, and adjustable welding assemblies are arranged in the electric sliding rails. A steel plate is arranged on the top of the outer wall of the transmission assembly, cooling fins are arranged on the top of the steel plate, and a heat preservation cavity assembly is arranged on the top of the supporting flat plate. The steel plate is preheated, so that stress generated during welding of the steel plate and the cooling fins is reduced, and the phenomena that welding quality and welding strength are reduced due to cracks generated by stress accumulation of welding seams, and the risk of loosening and cracking of the steel plate connecting position is increased are avoided; and meanwhile, the outer wall of the hollow rubber wheel can be adaptively attached to the outer walls of steel plates with different sizes and non-smooth and regular outer walls.

Description

Technical Field

[0001] The invention relates to the technical field of automatic welding, in particular to an automatic welding device for a transformer casing. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, secondary coil and iron core. It is the basic equipment for power transmission and distribution. At the same time, EI type transformer generally includes I steel sheets, E steel sheets, wire wraps and base plates. During assembly, it is necessary to manually weld the I steel sheets and E steel sheets together, and then weld the E steel sheets and base plates together.

[0003] Patent announcement number CN116673668A discloses an intelligent welding device and method for transformer casing processing, including a base plate, a conveying device fixedly installed on the top of the base plate, an auxiliary device installed on the outside of the conveying device, and a shock-absorbing mechanism for absorbing welding vibrations installed below the auxiliary device. A clamping plate is used. Before welding, two groups of sliders, adjustment plates, support columns, U-shaped plates, and clamping plates move toward the heat sink. One group of clamping plates clamps the heat sink that has just fallen onto the steel plate, making subsequent welding more stable, which is conducive to ensuring better subsequent welding effects. At the same time, another group of clamping plates clamps the heat sink that has just been welded to reduce the vibration impact of subsequent welding, thereby ensuring the subsequent cooling and curing effect of the heat sink, making its connection with the steel plate more firm.

[0004] However, the device still has some shortcomings: the device can clamp the steel plate to ensure stability during welding, but the steel plate is not preheated before welding and welding starts directly, which easily leads to the superposition of internal stress of the steel plate and external force, causing cracks in the weld, reducing welding quality and welding strength, and increasing the possibility of loosening of the steel plate connection. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an automatic welding device for a transformer casing, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic welding device for transformer casing, comprising a base, support columns are arranged at the corners of the top of the base, two support plates are arranged on the top of the support columns, and the two support plates are symmetrically distributed around the axis of the base, a transmission assembly is arranged inside the support plate, an electric slide rail is arranged on the left side of the top of the support plate, an adjustable welding assembly is arranged inside the electric slide rail, a steel plate is arranged on the top of the outer wall of the transmission assembly, a heat sink is arranged on the top of the steel plate, an insulation chamber assembly is arranged on the top of the support plate, the insulation chamber assembly is located on the right side of the electric slide rail, and four telescopic rods are fixedly installed on the inner wall of the insulation chamber assembly, four The telescopic rods are grouped in two, and the two groups of telescopic rods are symmetrically distributed around the axis of the heat preservation chamber assembly. A heating assembly is fixedly installed on the outer wall of one side of the fixed end of the telescopic rod close to the axis of the heat preservation chamber assembly. A U-shaped plate is fixedly installed on the telescopic end of the telescopic rod close to one end of the transmission assembly. A plurality of vertical rods are fixedly installed inside the U-shaped plate. The plurality of vertical rods are equidistantly distributed inside the U-shaped plate. A hollow rubber wheel is rotatably installed below the outer wall of the vertical rod through a torsion spring. The outer wall of the hollow rubber wheel close to the transmission assembly is located on the movement trajectory of the outer wall of the steel plate. A circular groove is provided on the outer wall of the hollow rubber wheel. A plurality of vibration plates are equidistantly and fixedly installed on the inner wall of the hollow rubber wheel. A resistance block is fixedly installed on the outer wall of the vertical rod. The support column and the support plate are in contact with each other. The driving assembly is limited and supported, and the peripheral drive module of the transmission assembly starts to rotate. When the transmission assembly rotates, it drives the steel plate to be transported from right to left on its top. When the steel plate is transported to the specified welding position, the heat sink is pressed down on the top of the steel plate through the external pressing assembly. At this time, the electric slide rail is started, and the electric slide rail drives the adjustable welding assembly to move toward the center of the transmission assembly and welds the connection between the steel plate and the heat sink. After the welding of a single heat sink is completed, the transmission assembly drives the steel plate to move forward again to weld the second heat sink. The welding work of the transformer casing is completed in this reciprocating manner; before the steel plate enters the insulation chamber assembly, the heating assembly is started to heat the inside of the insulation chamber assembly. When the steel plate enters the insulation chamber assembly When the steel plate is inside, the conveying is suspended for preheating. When the steel plate is preheated, it continues to be conveyed to the left through the transmission component. When the steel plate enters the heat preservation chamber component, the front and back outer walls contact the outer wall of the hollow rubber wheel to form a resistance force. Through the transmission of force, the hollow rubber wheel moves away from the center direction of the transmission component according to the radial direction of the steel plate. The hollow rubber wheel causes the vertical rod and the U-shaped plate to move synchronously. The U-shaped plate contacts the telescopic end of the telescopic rod and shrinks synchronously. At the same time, during the movement of the steel plate, the friction with the outer wall of the hollow rubber wheel causes the hollow rubber wheel to start rotating. The hollow rubber wheel is slightly softened by the conduction of heat from the heating component and can fit more closely with the irregular outer wall of the steel plate. The rotating contacting hollow rubber wheel makes the overall preheating of the steel plate more uniform.When the hollow rubber wheel rotates, it drives the vibration plate to move synchronously. The vertical rod limits the resistance block to keep it still. During the rotation process, the vibration plate contacts the arc surface of the resistance block to generate resistance force and deform and bend. The vibration plate continues to rotate over the resistance block and loses resistance. It automatically resets through its own toughness and swings back and forth to generate vibration. The vibration plate causes the hollow rubber wheel to vibrate synchronously. ;

[0007] According to the above technical solution, several of the vibration plates are tough, the resistance block is located inside the hollow rubber wheel, the vibration plate is located on the arc motion trajectory of the resistance block, and an anti-sway device is provided above the U-shaped plate to ensure good stability during the welding process of the steel plate and the heat sink.

[0008] According to the above technical solution, the anti-sway device includes a transmission belt, a rotating wheel, a screw rod, an L-shaped telescopic pressure plate and an L-shaped telescopic plate. The inner wall of the transmission belt is transmission-installed inside the circular groove of the hollow rubber wheel, the bottom of the rotating wheel is rotationally installed at the bottom of the inner wall of the U-shaped plate, the outer wall of the rotating wheel is transmission-connected to the inner wall of the transmission belt, the bottom of the screw rod is fixedly installed at the top center of the rotating wheel, the top of the screw rod is rotationally installed at the top of the inner wall of the U-shaped plate, the fixed end of the L-shaped telescopic pressure plate is slidingly installed on the inner wall of the U-shaped plate close to the outer wall of the heating component, the bottom of the fixed end of the L-shaped telescopic plate is fixedly installed on the top of the L-shaped telescopic pressure plate, and when the hollow rubber wheel rotates, the transmission belt drives the rotating wheel along The bottom of the inner wall of the U-shaped plate rotates, and the rotating wheel drives the screw rod to rotate. When the screw rod rotates, the spiral groove on its outer wall restricts the built-in block at the fixed end of the L-shaped telescopic pressure plate, and the built-in block of the L-shaped telescopic pressure plate continuously contacts the inner wall of the spiral groove, so that the L-shaped telescopic pressure plate can slide downward along the outer wall of the screw rod. When the L-shaped telescopic pressure plate moves downward, the bottom of its own telescopic end contacts the top edge of the steel plate, and as the fixed end of the L-shaped telescopic pressure plate continues to press downward, the pressing force of the bottom of the telescopic end of the L-shaped telescopic pressure plate on the top of the steel plate increases, and the L-shaped telescopic pressure plate drives the L-shaped telescopic plate to slide downward along the inner wall of the insulation chamber assembly, and when the hollow rubber wheel no longer contacts the steel plate, it is reset by the torsion spring.

[0009] According to the above technical solution, the L-shaped telescopic pressure plate passes through the outer wall of the screw rod, the top edge of the steel plate is located on the bottom movement trajectory of the telescopic end of the L-shaped telescopic pressure plate, and the outer wall of the telescopic end of the L-shaped telescopic plate is slidably installed on the inner wall of the insulation chamber assembly. A water-proof device is provided above the L-shaped telescopic plate to prevent external low-temperature gas from entering the insulation chamber assembly and mixing with heat to form water vapor when the steel plate is transported through the transmission assembly.

[0010] According to the above technical scheme, the anti-sway device also includes an elastic heat-conducting arc sheet and a slotted guide plate. The elastic heat-conducting arc sheet is fixedly installed between the top of the inner wall of the fixed end of the L-shaped telescopic plate and the inner wall of the insulation chamber assembly. The bottom of the slotted guide plate is hinged to the top of the fixed end of the L-shaped telescopic pressure plate, and the top of the slotted guide plate is hinged to the inner wall of the insulation chamber assembly. When the U-shaped plate is subjected to the resistance force from the steel plate and moves toward the inner wall of the insulation chamber assembly, it drives the L-shaped telescopic pressure plate to move synchronously. The L-shaped telescopic pressure plate prompts the L-shaped telescopic plate to drive the elastic heat-conducting arc sheet to move synchronously. After the elastic heat-conducting arc sheet is deformed by the resistance of the inner wall of the insulation chamber assembly, it is reset through its own elasticity. At the same time, when the L-shaped telescopic pressure plate moves, it drives the slotted guide plate to move synchronously. The hinge shaft of the slotted guide plate starts to rotate, prompting the slotted guide plate to swing in an arc shape with the hinge shaft as the axis.

[0011] According to the above technical scheme, the waterproof vapor-proof device includes a top plate, a rotating rod and a plurality of drying plates. The top of the top plate is slidably installed on the top of the inner wall of the heat preservation chamber assembly, the top of the rotating rod is rotatably installed on the bottom of the top plate, and an arc groove is opened above the outer wall of the rotating rod, and a spiral groove is opened below the outer wall of the rotating rod, and the spiral groove of the outer wall of the rotating rod movably penetrates the fixed end of the L-shaped telescopic plate. Several drying plates are equidistantly and fixedly installed on the outer wall of the rotating rod, and the drying plates are equipped with desiccant. Through the restriction of the rotating rod by the top plate and the non-self-locking spiral groove of the outer wall of the rotating rod that continuously contacts the internal block of the L-shaped telescopic plate when it slides downward, the rotating rod is prompted to generate a rotating force through the restriction of the spiral groove and starts to rotate. The rotating rod drives the drying plate to rotate, and when the drying plate rotates, the cold air brought by the unpreheated steel plate entering the heat preservation chamber assembly is subjected to rotational disturbance.

[0012] According to the above technical solution, the water vapor-proof device also includes a hollow plate, a friction column and a reset plate. The outer wall of the hollow plate is slidably installed on the inner wall of the drying plate, and the top of the hollow plate passes through the top of the hollow plate. The friction column is rotatably installed on the outer wall of the hollow plate close to the drying plate, and the outer wall of the friction column is in contact with the inner wall of the drying plate. The reset plate is fixedly installed between the bottom of the hollow plate and the bottom of the inner wall of the drying plate. When the drying plate revolves, it drives the hollow plate, the friction column and the reset plate to move synchronously. At the same time, when the rotating rod rotates, the arc groove on its outer wall restricts the connecting rod, so that the connecting rod can slide up and down inside the arc groove.

[0013] The cam is fixedly mounted on the bottom of the top plate, and the sliding plate is fixedly mounted on the outer wall of the cam plate near the outer wall of the cam plate. The top of the cam is fixedly mounted on the bottom of the top plate, and the inside of the cam plate passes through and is slidably mounted on the outer wall of the cam plate. The connecting rod drives the cam plate to move synchronously, and the cam plate drives the sliding plate to move synchronously along the outer wall of the cam plate. When the cam plate moves downward, it contacts the top of the hollow plate to force the hollow plate to move downward, and the hollow plate drives the friction column to move synchronously along the inner wall of the drying plate to generate friction. The friction column starts to rotate due to the friction force, and when the hollow plate moves downward, it squeezes the reset plate to deform synchronously to generate a rebound force, and then the hollow plate is reset by the elastic force of the reset plate and drives the friction column to reset, and this process repeats.

[0014] The present invention provides an automatic welding device for transformer casing, which has the following beneficial effects:

[0015] (1) The present invention achieves preheating of the steel plate through the cooperation of the insulation chamber component, the telescopic rod, the heating component, the U-shaped plate, the vertical rod, the hollow rubber wheel, the vibration plate and the resistance block, thereby reducing the stress generated when the steel plate and the heat sink are welded, avoiding cracks in the weld due to stress accumulation, reducing the welding quality and welding strength, and increasing the risk of loosening and cracking at the connection of the steel plate. At the same time, the outer wall of the hollow rubber wheel can adaptively fit the outer wall of steel plates with different diameters and non-smooth and regular outer walls, ensuring that the steel plate is transported in a centered straight line during transportation, which is convenient for workers to determine the welding position; at the same time, the hollow rubber wheel is able to fit the non-smooth outer wall of the steel plate more closely when in contact with the outer wall of the steel plate, further improving the linear stability during transportation, and relying on the vibration force to make it easier for the steel plate to enter between the outer walls of the hollow rubber wheels on both sides to prevent obstruction caused by transportation setbacks.

[0016] (2) The present invention sets an anti-sway device, and cooperates with a hollow rubber wheel, a transmission belt, a rotating wheel, a screw rod, an L-shaped telescopic pressure plate, an L-shaped telescopic plate, an elastic heat-conducting arc sheet and a slotted guide plate. The L-shaped telescopic plate is used to balance and limit the top of the L-shaped telescopic pressure plate to prevent the L-shaped telescopic pressure plate from tilting and warping. At the same time, the pressure on the steel plate from the telescopic end of the L-shaped telescopic pressure plate gradually increases during the transportation process, thereby ensuring the stability of the welding between the steel plate and the heat sink, avoiding interference fluctuations generated during the operation of the equipment, causing shaking during the welding process, thereby reducing the welding accuracy; at the same time, the heat emitted by the heating component is channeled, so that the heat is evenly diffused inside the insulation chamber component, thereby shortening the conversion time from cold to hot in the insulation chamber component, and avoiding temperature differences inside the insulation chamber component.

[0017] (3) The present invention adopts the arrangement of a water vapor proof device, and cooperates with an L-shaped telescopic plate, a top plate, a rotating rod, a drying plate, a hollow plate, a friction column, a reset plate, a connecting rod, a circular plate, a sliding plate and a limit rod to mix and disturb the hot and cold gases in the heat preservation chamber assembly, thereby accelerating the uniform mixing of the hot and cold gases. At the same time, the desiccant inside the present invention rotates and absorbs the water vapor generated when the hot and cold gases are mixed, thereby ensuring a dry environment inside the heat preservation chamber assembly and avoiding increasing energy loss. The water vapor intercepted inside the drying plate is subjected to friction drying treatment by the rotating friction of the friction column, thereby further improving the evaporation rate of the water vapor inside the drying plate and balancing the temperature of the welding environment on the original basis, thereby preventing the water vapor from naturally volatilizing for a long time, thereby increasing the humidity in the welding environment and causing a sharp increase in welding smoke, and at the same time avoiding the temperature change from affecting the welding quality of the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the present invention as a whole;

[0019] Figure 2 It is a cross-sectional schematic diagram of the present invention as a whole;

[0020] Figure 3 This is a schematic diagram of the internal structure of the heat preservation chamber assembly of the present invention;

[0021] Figure 4 It is a schematic diagram of the peripheral structure of the telescopic rod of the present invention;

[0022] Figure 5 It is a schematic diagram of the anti-sway device of the present invention;

[0023] Figure 6 This is a schematic diagram of the anti-sway device of the present invention from a front view;

[0024] Figure 7 This is a schematic diagram of the water vapor proof device of the present invention;

[0025] Figure 8 It is a schematic cross-sectional view of the water vapor proof device of the present invention.

[0026] In the figure: 1. base; 2. support column; 21. support plate; 22. transmission assembly; 3. electric slide rail; 31. adjustable welding assembly; 32. steel plate; 33. heat sink; 4. anti-sway device; 41. transmission belt; 42. rotating wheel; 43. screw rod; 44. L-shaped telescopic pressure plate; 45. L-shaped telescopic plate; 46. elastic heat conductive arc plate; 47. slotted guide plate; 5. water vapor proof device; 51. top plate; 52. rotating rod; 53. drying plate; 54. hollow plate; 55. friction column; 56. reset plate; 57. connecting rod; 58. circular plate; 59. sliding plate; 510. limit rod; 6. insulation chamber assembly; 7. telescopic rod; 8. heating assembly; 9. U-shaped plate; 10. vertical rod; 11. hollow rubber wheel; 12. vibration plate; 13. resistance block. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] See also Figure 1 - Figure 8 One embodiment of the present invention is: an automatic welding device for transformer housing, comprising a base 1, support columns 2 are arranged at the corners of the top of the base 1, two support plates 21 are arranged on the top of the support columns 2, the two support plates 21 are symmetrically distributed around the axis of the base 1, a transmission component 22 is arranged inside the support plate 21, an electric slide rail 3 is arranged on the left side of the top of the support plate 21, an adjustable welding component 31 is arranged inside the electric slide rail 3, a steel plate 32 is arranged on the top of the outer wall of the transmission component 22, a heat sink 33 is arranged on the top of the steel plate 32, and the support plate 21 is provided with a plurality of heat sinks. A heat preservation chamber assembly 6 is arranged on the top, and the heat preservation chamber assembly 6 is located on the right side of the electric slide rail 3. Four telescopic rods 7 are fixedly installed on the inner wall of the heat preservation chamber assembly 6. The four telescopic rods 7 are grouped in two, and the two groups of telescopic rods 7 are symmetrically distributed around the axis of the heat preservation chamber assembly 6. A heating assembly 8 is fixedly installed on the outer wall of one side of the fixed end of the telescopic rod 7 close to the axis of the heat preservation chamber assembly 6. A U-shaped plate 9 is fixedly installed on one end of the telescopic end of the telescopic rod 7 close to the transmission assembly 22. A plurality of vertical rods 10 are fixedly installed inside the U-shaped plate 9, and the plurality of vertical rods 10 are evenly distributed inside the U-shaped plate 9. A hollow rubber wheel 11 is installed under the outer wall of the vertical rod 10 through a torsion spring. The outer wall of the hollow rubber wheel 11 close to the transmission component 22 is located on the movement track of the outer wall of the steel plate 32. A circular groove is opened on the outer wall of the hollow rubber wheel 11. A plurality of vibration plates 12 are equidistantly and fixedly installed on the inner wall of the hollow rubber wheel 11. A resistance block 13 is fixedly installed on the outer wall of the vertical rod 10. The above cooperation realizes the preheating of the steel plate 32, thereby reducing the stress generated when the steel plate 32 and the heat sink 33 are welded, avoiding cracks in the weld due to stress accumulation, reducing the welding quality and welding strength, and increasing the steel plate 32. The risk of loosening and cracking at the connection is reduced. At the same time, the outer wall of the hollow rubber wheel 11 can adaptively fit the outer wall of the steel plate 32 with different diameters and non-smooth and regular outer wall, ensuring that the steel plate 32 is centered and transported in a straight line during transportation, which is convenient for the staff to determine the welding position; through the above cooperation, the hollow rubber wheel 11 can fit the non-smooth outer wall of the steel plate 32 more closely when in contact with the outer wall of the steel plate 32, further improving the linear stability during transportation, and relying on vibration force to make it easier for the steel plate 32 to enter between the outer walls of the hollow rubber wheels 11 on both sides to prevent obstruction caused by transportation setbacks.

[0029] The vibration plates 12 are all tough, the abutment block 13 is located inside the hollow rubber wheel 11, the vibration plates 12 are located on the arc motion trajectory of the abutment block 13, and an anti-sway device 4 is provided above the U-shaped plate 9 to ensure good stability during welding of the steel plate 32 and the heat sink 33.

[0030] When in use, the support column 2 and the support plate 21 provide limited support for the transmission component 22, and the peripheral drive module of the transmission component 22 starts to rotate. When the transmission component 22 rotates, it drives the steel plate 32 to be transported from right to left on its top. When the steel plate 32 is transported to the specified welding position, the heat sink 33 is pressed down on the top of the steel plate 32 through the external pressing component. At this time, the electric slide rail 3 is started, and the electric slide rail 3 drives the adjustable welding component 31 to move toward the center direction of the transmission component 22 and welds the connection between the steel plate 32 and the heat sink 33. After the welding of a single heat sink 33 is completed, the transmission component 22 drives the steel plate 32 to move forward again to weld the second heat sink 33, and the welding work of the transformer casing is completed in this reciprocating manner; Before the steel plate 32 enters the heat preservation chamber assembly 6, the heating assembly 8 is started to heat the inside of the heat preservation chamber assembly 6. When the steel plate 32 enters the heat preservation chamber assembly 6, the conveying is suspended for preheating. When the preheating of the steel plate 32 is completed, it continues to be conveyed to the left through the transmission assembly 22. When the steel plate 32 enters the heat preservation chamber assembly 6, the front and back outer walls contact the outer wall of the hollow rubber wheel 11 to form a resistance force. Through the transmission of force, the hollow rubber wheel 11 moves away from the center direction of the transmission assembly 22 according to the radial direction of the steel plate 32. The hollow rubber wheel 11 causes the vertical rod 10 to move synchronously with the U-shaped plate 9. The U-shaped plate 9 resists the telescopic end of the telescopic rod 7 and contracts synchronously. At the same time, during the movement of the steel plate 32, the outer wall of the hollow rubber wheel 11 contacts and rubs to cause the hollow The rubber wheel 11 causes the rotating force to start rotating, and the hollow rubber wheel 11 is slightly softened by the conduction of heat from the heating component 8, so that it can fit more closely to the irregular outer wall of the steel plate 32, and the rotating contact hollow rubber wheel 11 makes the overall preheating of the steel plate 32 more uniform. The above cooperation realizes the preheating of the steel plate 32, thereby reducing the stress generated when the steel plate 32 and the heat sink 33 are welded, avoiding the occurrence of cracks in the weld due to stress accumulation, reducing the welding quality and welding strength, and increasing the risk of loosening and cracking at the connection of the steel plate 32. At the same time, the outer wall of the hollow rubber wheel 11 can adaptively fit the outer wall of the steel plate 32 with different diameters and non-smooth and regular outer wall, ensuring that the steel plate 32 is transported in a centered straight line during transportation, which is convenient for the staff to determine the welding position; When the rubber wheel 11 rotates, it drives the vibration plate 12 to move synchronously. The vertical rod 10 limits the resistance block 13 to keep it still. The vibration plate 12 contacts the arc surface of the resistance block 13 during rotation to generate resistance force and deform and bend. The vibration plate 12 continues to rotate over the resistance block 13 and loses resistance. It will swing back and forth to generate vibration during the process of automatically resetting due to its own toughness. The vibration plate 12 prompts the hollow rubber wheel 11 to vibrate synchronously. Through the above cooperation, the hollow rubber wheel 11 can fit the non-smooth outer wall of the steel plate 32 more closely when in contact with the outer wall of the steel plate 32, thereby further improving the linear stability during transportation. At the same time, relying on the vibration force, it is more convenient for the steel plate 32 to enter between the outer walls of the hollow rubber wheels 11 on both sides to prevent obstructions caused by conveying setbacks.

[0031] See also Figure 1 - Figure 8 , based on the above embodiment, another embodiment of the present invention further includes an anti-swaying device 4;

[0032] The anti-sway device 4 includes a transmission belt 41, a rotating wheel 42, a screw rod 43, an L-shaped telescopic pressure plate 44 and an L-shaped telescopic plate 45. The inner wall of the transmission belt 41 is transmission-mounted inside the circular groove of the hollow rubber wheel 11, the bottom of the rotating wheel 42 is rotationally mounted on the bottom of the inner wall of the U-shaped plate 9, the outer wall of the rotating wheel 42 is transmission-connected to the inner wall of the transmission belt 41, the bottom of the screw rod 43 is fixedly mounted at the top center of the rotating wheel 42, the top of the screw rod 43 is rotationally mounted on the top of the inner wall of the U-shaped plate 9, and the fixed end of the L-shaped telescopic pressure plate 44 is slidingly mounted on the U-shaped plate near the outer wall of the heating component 8. 9 At the inner wall, the bottom of the fixed end of the L-shaped telescopic plate 45 is fixedly installed on the top of the L-shaped telescopic pressure plate 44. Through the above cooperation, the top of the L-shaped telescopic pressure plate 44 is balanced and limited by the L-shaped telescopic plate 45 to prevent the L-shaped telescopic pressure plate 44 from tilting and warping. At the same time, the pressure force on the steel plate 32 from the telescopic end of the L-shaped telescopic pressure plate 44 gradually increases during the transportation process, ensuring the stability of the steel plate 32 and the heat sink 33 during welding, avoiding interference fluctuations generated during the operation of the equipment, causing shaking during the welding process, thereby reducing the welding accuracy.

[0033] The L-shaped telescopic pressure plate 44 penetrates the outer wall of the screw rod 43, and the top edge of the steel plate 32 is located on the bottom movement trajectory of the telescopic end of the L-shaped telescopic pressure plate 44. The outer wall of the telescopic end of the L-shaped telescopic plate 45 is slidably installed on the inner wall of the insulation chamber assembly 6, and a water-proof device 5 is provided above the L-shaped telescopic plate 45 to prevent external low-temperature gas from entering the insulation chamber assembly 6 and mixing with heat to form water vapor when the steel plate 32 is transported through the transmission assembly 22.

[0034] The anti-sway device 4 also includes an elastic heat-conducting arc sheet 46 and a slotted guide plate 47. The elastic heat-conducting arc sheet 46 is fixedly installed between the top of the inner wall of the fixed end of the L-shaped telescopic plate 45 and the inner wall of the insulation chamber assembly 6. The bottom of the slotted guide plate 47 is hinged to the top of the fixed end of the L-shaped telescopic pressure plate 44, and the top of the slotted guide plate 47 is hinged to the inner wall of the insulation chamber assembly 6. Through the above cooperation, the heat emitted by the heating assembly 8 is guided, and the heat is evenly diffused inside the insulation chamber assembly 6, thereby shortening the conversion time from cold to hot of the insulation chamber assembly 6 and avoiding the temperature difference phenomenon inside the insulation chamber assembly 6.

[0035] When in use, the hollow rubber wheel 11 rotates, driving the rotating wheel 42 to rotate along the bottom of the inner wall of the U-shaped plate 9 through the transmission belt 41, and the rotating wheel 42 drives the screw rod 43 to rotate. When the screw rod 43 rotates, the spiral groove on its outer wall restricts the built-in block at the fixed end of the L-shaped telescopic pressing plate 44, and the built-in block of the L-shaped telescopic pressing plate 44 constantly contacts the inner wall of the spiral groove, so that the L-shaped telescopic pressing plate 44 can slide downward along the outer wall of the screw rod 43. When the L-shaped telescopic pressing plate 44 moves downward, the bottom of its own telescopic end contacts the top edge of the steel plate 32 , and as the fixed end of the L-shaped telescopic pressing plate 44 continues to press downward, the pressing force of the bottom of the telescopic end of the L-shaped telescopic pressing plate 44 on the top of the steel plate 32 becomes greater, and the L-shaped telescopic pressing plate 44 drives the L-shaped telescopic plate 45 to slide downward along the inner wall of the heat preservation chamber assembly 6. When the hollow rubber wheel 11 no longer contacts the steel plate 32, it is reset by the torsion spring. Through the above cooperation, the top of the L-shaped telescopic pressing plate 44 is balanced and limited by the L-shaped telescopic plate 45 to prevent the L-shaped telescopic pressing plate 44 from tilting and warping. At the same time, the steel plate 32 is transported during The pressing force from the telescopic end of the L-shaped telescopic pressing plate 44 gradually increases, ensuring the stability of the welding of the steel plate 32 and the heat sink 33, avoiding the interference fluctuations caused by the operation of the equipment, which may cause shaking during the welding process and reduce the welding accuracy; when the U-shaped plate 9 is subjected to the resistance force from the steel plate 32 and moves toward the inner wall of the heat preservation chamber component 6, it drives the L-shaped telescopic pressing plate 44 to move synchronously, and the L-shaped telescopic pressing plate 44 prompts the L-shaped telescopic plate 45 to drive the elastic heat conductive arc sheet 46 to move synchronously, and the elastic heat conductive arc sheet 46 is subjected to the resistance force from the steel plate 32. After the inner wall of the insulation chamber assembly 6 is deformed, it is restored by its own elasticity. At the same time, the L-shaped telescopic pressure plate 44 drives the slotted guide plate 47 to move synchronously, and the hinge axis of the slotted guide plate 47 begins to rotate, causing the slotted guide plate 47 to swing in an arc shape with the hinge axis as the axis. Through the above cooperation, the heat emitted by the heating component 8 is channeled, and the heat is evenly diffused inside the insulation chamber assembly 6, thereby shortening the conversion time of the insulation chamber assembly 6 from cold to hot, and avoiding the temperature difference inside the insulation chamber assembly 6.

[0036] See also Figure 1 - Figure 8 , based on the above embodiment, another embodiment of the present invention further includes a water vapor blocking device 5;

[0037] The anti-vapor device 5 includes a top plate 51, a rotating rod 52 and a plurality of drying plates 53. The top of the top plate 51 is slidably installed on the top of the inner wall of the insulation chamber assembly 6, and the top of the rotating rod 52 is rotatably installed on the bottom of the top plate 51. An arc groove is opened above the outer wall of the rotating rod 52, and a spiral groove is opened below the outer wall of the rotating rod 52. The spiral groove on the outer wall of the rotating rod 52 movably passes through the fixed end of the L-shaped telescopic plate 45. A plurality of drying plates 53 are equidistantly and fixedly installed on the outer wall of the rotating rod 52, and the drying plates 53 are built with desiccant. Through the above cooperation, the cold and hot gases inside the insulation chamber assembly 6 are mixed and disturbed to accelerate the uniform mixing of the cold and hot gases. At the same time, the desiccant inside itself is used to rotate and absorb the water vapor generated when the cold and hot gases are mixed, so as to ensure the dry environment inside the insulation chamber assembly 6 and avoid increasing energy loss.

[0038] The water vapor-proof device 5 also includes a hollow plate 54, a friction column 55 and a reset plate 56. The outer wall of the hollow plate 54 is slidably mounted on the inner wall of the drying plate 53. The top of the hollow plate 54 passes through the top of the hollow plate 54. The friction column 55 is rotatably mounted on the outer wall of the hollow plate 54 near the side of the drying plate 53, and the outer wall of the friction column 55 contacts the inner wall of the drying plate 53. The reset plate 56 is fixedly mounted between the bottom of the hollow plate 54 and the bottom of the inner wall of the drying plate 53. When the drying plate 53 revolves, it drives the hollow plate 54, the friction column 55 and the reset plate 56 to move synchronously. At the same time, when the rotating rod 52 rotates, it limits the connecting rod 57 through the arc groove of its own outer wall, so that the connecting rod 57 can slide up and down inside the arc groove.

[0039] The anti-vapor device 5 also includes a connecting rod 57, an annular plate 58, a sliding plate 59 and a limiting rod 510. The connecting rod 57 is slidably installed at one end near the center of the top plate 51 on the inside of the arc groove of the rotating rod 52, the inner wall of the annular plate 58 is fixedly installed on the end of the connecting rod 57 away from the center of the top plate 51, the sliding plate 59 is fixedly installed on the outer wall of the annular plate 58 on the side near the outer wall of the rotating rod 52, the top of the limiting rod 510 is fixedly installed on the bottom of the top plate 51, and the inside of the annular plate 58 penetrates and is slidably installed on the outer wall of the limiting rod 510. Through the above cooperation, the water vapor intercepted inside the drying plate 53 is frictionally dried by relying on the rotational friction of the friction column 55, and the evaporation rate of the water vapor inside the drying plate 53 is further improved on the original basis. Balance with the temperature of the welding environment, prevent the water vapor from naturally volatilizing for a long time, resulting in an increase in humidity in the welding environment and thus a sharp increase in welding smoke, while avoiding the temperature change affecting the welding quality of the weld.

[0040] When in use, the top plate 51 restricts the rotating rod 52, and the internal block of the L-shaped telescopic plate 45 continuously contacts the non-self-locking spiral groove on the outer wall of the rotating rod 52 when the L-shaped telescopic plate 45 slides downward. The restriction of the spiral groove causes the rotating rod 52 to generate a rotating force and start to rotate, and the rotating rod 52 drives the drying plate 53 to rotate. When the drying plate 53 rotates, the cold air brought by the unpreheated steel plate 32 entering the heat preservation chamber assembly 6 is subjected to rotational disturbance. Through the above cooperation, the hot and cold gases in the heat preservation chamber assembly 6 are mixed and disturbed, and the uniform mixing of the hot and cold gases is accelerated. At the same time, the water vapor generated when the hot and cold gases are mixed is absorbed by the desiccant inside the heat preservation chamber assembly 6 to ensure the dry environment inside the heat preservation chamber assembly 6 and avoid increasing energy loss. When the drying plate 53 revolves, it drives the hollow plate 54, the friction column 55 and the reset plate 56 to move synchronously. At the same time, when the rotating rod 52 rotates, the arc groove on the outer wall of the rotating rod 52 restricts the connecting rod 57, so that the connecting rod 57 can slide up and down inside the arc groove. The connecting rod 57 drives the circular plate 58 to move synchronously, and the circular plate 58 drives the sliding plate 59 to move synchronously along the outer wall of the limit rod 510. When the circular plate 58 moves downward, it contacts the top of the hollow plate 54 to force the hollow plate 54 to move downward. The hollow plate 54 drives the friction column 55 to move synchronously along the inner wall of the drying plate 53 to generate friction. The friction column 55 starts to rotate due to the friction force, and when the hollow plate 54 moves downward, it squeezes the reset sheet 56 to deform synchronously to generate a rebound force. After that, the hollow plate 54 is reset by the elastic force of the reset sheet 56 and drives the friction column 55 to reset, and so on. Through the above cooperation, the water vapor intercepted inside the drying plate 53 is frictionally dried by the rotational friction of the friction column 55. On the original basis, the evaporation rate of the water vapor inside the drying plate 53 is further improved and the temperature balance of the welding environment is balanced, so as to prevent the water vapor from naturally volatilizing for a long time, resulting in an increase in humidity in the welding environment and thus a sharp increase in welding smoke, and at the same time, the temperature change is prevented from affecting the welding quality of the weld.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A transformer housing automatic welding device, comprising a base (1), support columns (2) are arranged at the corners of the top of the base (1), two support plates (21) are arranged on the top of the support columns (2), the two support plates (21) are symmetrically distributed around the axis of the base (1), a transmission assembly (22) is arranged inside the support plate (21), an electric slide rail (3) is arranged on the left side of the top of the support plate (21), an adjustable welding assembly (31) is arranged inside the electric slide rail (3), a steel plate (32) is arranged on the top of the outer wall of the transmission assembly (22), and a heat sink (33) is arranged on the top of the steel plate (32), characterized in that: A heat preservation chamber assembly (6) is arranged on the top of the support plate (21), and the heat preservation chamber assembly (6) is located on the right side of the electric slide rail (3). Four telescopic rods (7) are fixedly installed on the inner wall of the heat preservation chamber assembly (6), and the four telescopic rods (7) are arranged in a group of two, and the two groups of telescopic rods (7) are symmetrically distributed around the axis of the heat preservation chamber assembly (6). A heating assembly (8) is fixedly installed on the outer wall of one side of the fixed end of the telescopic rod (7) close to the axis of the heat preservation chamber assembly (6), and a U-shaped plate (9) is fixedly installed on one end of the telescopic end of the telescopic rod (7) close to the transmission assembly (22). ), a plurality of vertical rods (10) are fixedly installed inside the U-shaped plate (9), and the plurality of vertical rods (10) are equidistantly distributed inside the U-shaped plate (9); a hollow rubber wheel (11) is rotatably installed below the outer wall of the vertical rod (10) through a torsion spring; the outer wall of the hollow rubber wheel (11) close to the transmission component (22) is located on the movement trajectory of the outer wall of the steel plate (32); a circular groove is provided on the outer wall of the hollow rubber wheel (11); a plurality of vibration plates (12) are equidistantly and fixedly installed on the inner wall of the hollow rubber wheel (11); and a resistance block (13) is fixedly installed on the outer wall of the vertical rod (10).

2. The automatic welding device for transformer casing according to claim 1 is characterized in that: The plurality of vibration plates (12) are all tough, the abutment block (13) is located inside the hollow rubber wheel (11), the vibration plate (12) is located on the arc motion trajectory of the abutment block (13), and an anti-sway device (4) is provided above the U-shaped plate (9) to ensure good stability during the welding process of the steel plate (32) and the heat sink (33).

3. The automatic welding device for transformer casing according to claim 2 is characterized in that: The anti-sway device (4) comprises a transmission belt (41), a rotating wheel (42), a screw rod (43), an L-shaped telescopic pressure plate (44) and an L-shaped telescopic plate (45); the inner wall of the transmission belt (41) is transmission-mounted inside the circular groove of the hollow rubber wheel (11); the bottom of the rotating wheel (42) is rotationally mounted on the bottom of the inner wall of the U-shaped plate (9); the outer wall of the rotating wheel (42) is transmission-connected to the inner wall of the transmission belt (41); the bottom of the screw rod (43) is fixedly mounted at the center of the top of the rotating wheel (42); the top of the screw rod (43) is rotationally mounted on the top of the inner wall of the U-shaped plate (9); the fixed end of the L-shaped telescopic pressure plate (44) is slidably mounted on the inner wall of the U-shaped plate (9) near the outer wall of the heating component (8); and the fixed end bottom of the L-shaped telescopic plate (45) is fixedly mounted on the top of the L-shaped telescopic pressure plate (44).

4. The automatic welding device for transformer casing according to claim 3 is characterized in that: The L-shaped telescopic pressure plate (44) penetrates the outer wall of the screw rod (43), the top edge of the steel plate (32) is located on the bottom movement trajectory of the telescopic end of the L-shaped telescopic pressure plate (44), the outer wall of the telescopic end of the L-shaped telescopic plate (45) is slidably installed on the inner wall of the heat preservation chamber assembly (6), and a water vapor prevention device (5) is arranged above the L-shaped telescopic plate (45) to prevent the external low-temperature gas from entering the heat preservation chamber assembly (6) and mixing with the heat to form water vapor when the steel plate (32) is transported through the transmission assembly (22).

5. The automatic welding device for transformer casing according to claim 4 is characterized in that: The anti-sway device (4) also includes an elastic heat-conducting arc sheet (46) and a slotted guide plate (47), wherein the elastic heat-conducting arc sheet (46) is fixedly installed between the top of the inner wall of the fixed end of the L-shaped telescopic plate (45) and the inner wall of the heat-insulating chamber assembly (6), and the bottom of the slotted guide plate (47) is hinged to the top of the fixed end of the L-shaped telescopic pressure plate (44), and the top of the slotted guide plate (47) is hinged to the inner wall of the heat-insulating chamber assembly (6).

6. The automatic welding device for transformer casing according to claim 5, characterized in that: The anti-vapor device (5) comprises a top plate (51), a rotating rod (52) and a plurality of drying plates (53), wherein the top of the top plate (51) is slidably mounted on the top of the inner wall of the heat preservation chamber assembly (6), the top of the rotating rod (52) is rotatably mounted on the bottom of the top plate (51), an arc groove is provided on the top of the outer wall of the rotating rod (52), a spiral groove is provided on the bottom of the outer wall of the rotating rod (52), and the spiral groove on the outer wall of the rotating rod (52) movably passes through the interior of the fixed end of the L-shaped telescopic plate (45), and the plurality of drying plates (53) are equidistantly and fixedly mounted on the outer wall of the rotating rod (52), and a desiccant is built into the drying plates (53).

7. The automatic welding device for transformer casing according to claim 6 is characterized in that: The water vapor-proof device (5) further comprises a hollow plate (54), a friction column (55) and a reset plate (56); the outer wall of the hollow plate (54) is slidably mounted on the inner wall of the drying plate (53); the top of the hollow plate (54) penetrates the top of the hollow plate (54); the friction column (55) is rotatably mounted on the outer wall of the hollow plate (54) on a side close to the drying plate (53); the outer wall of the friction column (55) contacts the inner wall of the drying plate (53); and the reset plate (56) is fixedly mounted between the bottom of the hollow plate (54) and the bottom of the inner wall of the drying plate (53).

8. The automatic welding device for transformer casing according to claim 7, characterized in that: The water vapor-proof device (5) further comprises a connecting rod (57), a circular ring plate (58), a sliding plate (59) and a limiting rod (510); the connecting rod (57) is slidably mounted at one end close to the center of the top plate (51) inside the arc-shaped groove of the rotating rod (52); the inner wall of the circular ring plate (58) is fixedly mounted at one end of the connecting rod (57) away from the center of the top plate (51); the sliding plate (59) is fixedly mounted at the outer wall of the circular ring plate (58) close to the outer wall of the rotating rod (52); the top of the limiting rod (510) is fixedly mounted at the bottom of the top plate (51); the inner part of the circular ring plate (58) passes through and is slidably mounted on the outer wall of the limiting rod (510).

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