A multifunctional welding machine

Abstract

The invention discloses a multifunctional welding machine, comprising a base and a multi-angle welding mechanism. Through the arrangement of the heating mechanism, the two ends of a heat dissipation pipe can be heated, and the spacing between a plurality of heating rods can be adjusted according to the size and shape of the heat dissipation pipe, that is, by moving an adjustment plate, the adjustment plate drives a rack to move, the rack is meshed and connected with a gear, and then the adjustment plate drives a heating ring to rotate through the gear and the rack, and along with the rotation of the heating ring, an adjustment rod located in an adjustment inclined groove moves, and then the adjustment rod drives the heating rod to move through a transmission block, and then the spacing between the plurality of heating rods is changed, and the arrangement of the sliding block and the groove, the groove is also inclined, so that the sliding block can rotate along with the heating ring, and at the same time the heating seat can cooperate with a first cylinder, that is, the first cylinder is started, and the first cylinder drives the heating seat to move, and clamps the heat dissipation pipe to a welding area, and then welding can be performed.

Description

Technical Field

[0001] The invention relates to the technical field of welding machines, in particular to a multifunctional welding machine. Background Art

[0002] Radiator is an important and basic component in hot water (or steam) heating system. Hot water cools down in the radiator (or steam condenses in the radiator) to supply heat to the room, achieving the purpose of heating. The key component of the radiator is the heat pipe.

[0003] The heat pipe in the radiator is usually used in conjunction with the header to form the prototype of the radiator. The two headers are placed at both ends of the heat pipe, and one end of the heat pipe is inserted into the welding groove opened on one of the headers and welded by a welding machine. Then, the other end of the heat pipe is inserted into the welding groove opened on the other header, and the connection between the two is welded by a welding machine.

[0004] However, due to the particularity of the material of the heat dissipation pipe itself, it is necessary to preheat the heat dissipation pipe before welding to reduce the cooling speed of the welded joint so that it can be cooled slowly after welding to prevent welding cracks. However, the existing heat dissipation pipe is usually preheated by placing the heat dissipation pipe as a whole in a heating furnace for heating and melting. The heating equipment is greatly limited by the product size and has high energy consumption. Therefore, a multifunctional welding machine is proposed to address the above problems. Summary of the invention

[0005] In order to make up for the shortcomings of the prior art and solve the problem that due to the particularity of the material of the heat dissipation pipe itself, the heat dissipation pipe needs to be preheated before welding to reduce the cooling speed of the welded joint, so that it can be slowly cooled after welding to prevent welding cracks. However, the preheating of the existing heat dissipation pipe is usually to place the heat dissipation pipe as a whole in a heating furnace for heating and melting, and the heating equipment is greatly limited by the product size and has high energy consumption. The present invention proposes a multifunctional welding machine.

[0006] A multifunctional welding machine comprises a base and a multi-angle welding mechanism, wherein a double-headed threaded rod is rotatably installed in the base, a first motor is fixedly installed at one end of the base, an output end of the first motor passes through the base and is fixedly connected to one end of the double-headed threaded rod through a coupling, threaded plates are threadedly installed at both ends of the outer wall of the double-headed threaded rod, a heating seat is arranged on the top of the threaded plate, a clamping groove provided on the top of the base is extended from the top of the threaded plate, a first cylinder is fixedly installed on the top of the threaded plate, and an output end of the first cylinder is fixedly connected to a side surface of the heating seat;

[0007] The heating seat is provided with a heating mechanism, and the heating mechanism comprises a heating ring arranged in the heating seat, a first gear fixedly connected is installed on the outer wall circumference of the heating ring, an adjusting plate slidably connected is installed on the bottom of the heating seat, a first rack fixedly connected is installed on the top of the adjusting plate, and the first rack is meshed with the first gear. The heating ring is provided with an adjusting bevel, and a slidably connected adjusting rod is installed in the adjusting bevel, one end of the adjusting rod extends out of the adjusting bevel and is provided with a fixedly connected transmission block, a side of the transmission block close to the heating ring is provided with a fixedly connected heating rod, a heating coil is wound around the outer wall of the heating rod, and a connected mounting block is installed on the inner side wall of the heating seat, grooves are provided on both sides of the inner wall of the heating seat, a slidably connected sliding block is installed in the groove, and one end of the sliding block extends out of the groove and is fixedly connected to one side of the transmission block.

[0008] Preferably, the multi-angle welding mechanism includes a mounting frame fixedly mounted on the top of the base, guide rails fixedly mounted and connected are installed on both sides of the inner top wall of the mounting frame, an electric slide rail slidably connected is installed between the two guide rails, a slidingly connected moving block is installed on the electric slide rail, a second fixedly connected cylinder is installed at the bottom of the moving block, a lifting plate fixedly connected is installed at the output end of the second cylinder, a second fixedly connected motor is installed on the top of the lifting plate, the output end of the second motor passes through the lifting plate and is installed with a fixedly connected welding block, the welding block is installed with a rotatably connected adjusting block via a rotating shaft, a welding head is provided at the end of the adjusting block away from the welding block, a third motor is provided at the bottom of the lifting plate, and the output end of the third motor is fixedly connected to one end of the rotating shaft.

[0009] Preferably, a limit assembly is arranged in the heating seat, and the limit assembly includes a through slot opened in the adjusting plate, a rotatably connected driving rod is installed on the inner side wall of the through slot, one end of the driving rod passes through the heating seat and is connected with the outside, a second gear is circumferentially installed on the rod wall of the driving rod located in the through slot, a slidably connected limit plate is installed in the through slot, a fixedly connected second rack is installed on the side of the limit plate close to the second gear, the second rack is meshingly connected with the second gear, and one end of the limit plate extends out of a groove and is inserted into a slot opened in the inner side wall of the heating seat.

[0010] Preferably, a slide groove is provided on the top of the threaded plate, a slidably connected driving block is installed in the slide groove, and the top end of the driving block extends out of the slide groove and is fixedly connected to the bottom of the heating seat.

[0011] Preferably, the length of the welding block is smaller than the length of the adjusting block, four groups of second cylinders are provided, and the four groups of second cylinders are distributed in a ring, an annular groove is provided at the bottom of the lifting plate, a connecting block is slidably installed in the annular groove, and the bottom end of the connecting block extends out of the annular groove and is fixedly connected to the top of the third motor.

[0012] Preferably, a third cylinder is fixedly mounted on both sides of the top of the base, and a push plate is detachably mounted on the output end of the third cylinder, and a mounting groove is provided on the push plate.

[0013] Preferably, a lifting groove is provided on the top of the base, a fourth cylinder is fixedly installed on the inner bottom wall of the lifting groove, a support seat is fixedly installed on the output end of the fourth cylinder, and a support groove is provided on the top of the support seat.

[0014] Preferably, a smoking machine is fixedly mounted on the top of the mounting frame.

[0015] The present invention is beneficial in that:

[0016] 1. The present invention can heat both ends of the heat dissipation pipe and adjust the spacing between multiple heating rods according to the size and shape of the heat dissipation pipe through the setting of the heating mechanism. That is, by moving the adjustment plate, the adjustment plate drives the rack to move, the rack is meshed with the gear, and then the adjustment plate drives the heating ring to rotate through the gear and the rack. Along with the rotation of the heating ring, the adjustment rod located in the adjustment inclined groove moves, and then the adjustment rod drives the heating rod to move through the transmission block, and then the spacing between the multiple heating rods is changed. The setting of the sliding block and the groove, the groove is also inclined, which is convenient for the sliding block to rotate along with the heating ring. At the same time, the heating seat can cooperate with the first cylinder, that is, start the first cylinder, the first cylinder drives the heating seat to move, clamps the heat dissipation pipe to the welding area, and then welding can be carried out.

[0017] 2. The present invention facilitates multi-angle welding and improves welding efficiency through the arrangement of a multi-angle welding mechanism. The guide rail can be started as needed, and a driving member is arranged on the guide rail. The two guide rails drive the electric slide rail to move, and the electric slide rail is started. The electric slide rail drives the welding head thereunder to move to the welding position through the moving block, and the lifting plate is driven up and down by the second cylinder under the moving block. The welding block is driven to rotate through the arrangement of the second motor, and the welding block drives the adjusting block to rotate through the rotating shaft, and then drives the welding head to rotate. At the same time, through the arrangement of the third motor, the third motor is started to drive the rotating shaft, which is convenient for adjusting the angle of the cover plate block, and then it is convenient to change the angle of the welding head thereunder, so as to perform multi-angle and multi-position welding.

[0018] 3. The present invention, through the setting of the limit assembly, is convenient for limiting the adjustment plate and also for limiting the adjustment plate when it moves at different distances in coordination with the adjustment plate. That is, when the adjustment plate is to be pushed, the driving rod is rotated at one end located at the outside, and the driving rod drives the second gear to rotate, and then the second gear drives the second rack to move, and then the second gear drives the limit plate through the second rack, so that one end of the limit plate moves out of the slot, and then the movement of the adjustment plate can be adjusted. When the adjustment is completed, the driving rod can be reversed so that the limit plate is inserted into the corresponding slot at this time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 A schematic diagram of a three-dimensional structure of an embodiment of the present invention;

[0021] Figure 2 This is one of the partial cross-sectional structural schematic diagrams of an embodiment of the present invention;

[0022] Figure 3 The second schematic diagram of a partial cross-sectional structure of an embodiment of the present invention;

[0023] Figure 4 The third schematic diagram of a partial cross-sectional structure of an embodiment of the present invention;

[0024] Figure 5 For an embodiment of the present invention Figure 2 Schematic diagram of the structure at D in the figure.

[0025] In the figure: 1. base; 21. mounting frame; 3. double-headed threaded rod; 4. first motor; 5. threaded plate; 6. heating seat; 7. first cylinder; 8. heating mechanism; 81. heating ring; 82. first gear; 83. adjusting plate; 84. first rack; 85. adjusting inclined slot; 86. adjusting rod; 87. transmission block; 89. heating coil; 810. heating rod; 10. slide slot; 12. third cylinder; 13. push plate; 14. lifting slot; 15. fourth cylinder; 16. support seat. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 5 As shown, a multifunctional welding machine comprises a base 1 and a multi-angle welding mechanism, a double-headed threaded rod 3 is rotatably installed in the base 1, a first motor 4 is fixedly installed at one end of the base 1, an output end of the first motor 4 passes through the base 1 and is fixedly connected to one end of the double-headed threaded rod 3 through a coupling, threaded plates 5 are threadedly installed at both ends of the outer wall of the double-headed threaded rod 3, a heating seat 6 is arranged on the top of the threaded plate 5, the top of the threaded plate 5 extends out of the clamping groove opened at the top of the base 1, a first cylinder 7 is fixedly installed on the top of the threaded plate 5, and the output end of the first cylinder 7 is fixedly connected to one side of the heating seat 6;

[0028] The heating seat 6 is provided with a heating mechanism 8, which includes a heating ring 81 provided in the heating seat 6, a first gear 82 fixedly connected is installed on the outer wall circumference of the heating ring 81, an adjusting plate 83 slidably connected is installed at the bottom of the heating seat 6, a first rack 84 fixedly connected is installed on the top of the adjusting plate 83, and the first rack 84 is meshed with the first gear 82. An adjusting bevel 85 is provided on the heating ring 81, and a slidably connected adjusting rod 86 is installed in the adjusting bevel 85. One end of the adjusting rod 86 extends out of the adjusting bevel 85 and is provided with a fixedly connected transmission block 87. A fixedly connected heating rod is installed on a side of the transmission block 87 close to the heating ring 81, and a heating coil 89 is wound around the outer wall of the heating rod. A connected mounting block 810 is installed on the inner side wall of the heating seat 6. Grooves are provided on both sides of the inner wall of the heating seat 6, and a slidably connected sliding block is installed in the groove. One end of the sliding block extends out of the groove and is fixedly connected to a side of the transmission block 87.Due to the particularity of the material of the heat dissipation tube itself, it is necessary to preheat the heat dissipation tube before welding to reduce the cooling speed of the welded joint, so that it can be slowly cooled after welding to prevent welding cracks. However, the preheating of the existing heat dissipation tube is usually to place the heat dissipation tube as a whole in a heating furnace for heating and melting. The heating equipment is greatly restricted by the product size and has high energy consumption. Therefore, the present welding machine is adopted. Specifically, the first motor 4 is started before welding, and the first motor 4 drives the double-headed threaded rod 3 to rotate. The double-headed threaded rod 3 drives the two threaded plates 5 thereon to move away from each other, and then drives the heating seat 6 thereon to move. Then, the heating tube can be placed between the two heating seats 6, and then the first motor 4 is reversed to drive the two heating seats 6 to move closer to each other, so that the two ends of the heat dissipation tube are inserted into the heating holes opened on the two heating seats 6. Then, the electromagnetic heating controller connected to the heating coil 89 can be started to heat. At the same time, through the setting of the heating mechanism 8, while the two ends of the heat dissipation tube can be heated, the spacing between the multiple heating rods can also be adjusted according to the size and shape of the heat dissipation tube, that is, by moving the adjustment plate 83, the adjustment plate 83 drives the rack to move, and the rack meshes with the gear The adjusting plate 83 drives the heating ring 81 to rotate through the gear and the rack. With the rotation of the heating ring 81, the adjusting rod 86 in the adjusting inclined groove 85 moves. Then the adjusting rod 86 drives the heating rod to move through the transmission block 87, and then the spacing between the multiple heating rods is changed. The setting of the sliding block and the groove, the groove is also inclined, so that the sliding block can rotate with the heating ring 81. At the same time, the heating seat 6 can cooperate with the first cylinder 7, that is, start the first cylinder 7, and the first cylinder 7 drives the heating seat 6 to move, clamping the heat dissipation pipe to move to The welding area can be welded. During the heating and welding process, there is no need to place the heat dissipation pipe as a whole in a heating furnace for heating and melting, and the number of devices for clamping, moving and heating the heat dissipation pipe is reduced, thereby improving the welding efficiency. This solves the problem that the heat dissipation pipe needs to be preheated before welding due to the particularity of the heat dissipation pipe's own material, so as to reduce the cooling speed of the welded joint, so that it can be cooled slowly after welding to prevent welding cracks. However, the existing heat dissipation pipe preheating usually places the heat dissipation pipe as a whole in a heating furnace for heating and melting, and the heating equipment is greatly limited by the product size and has high energy consumption. ;

[0029] As an embodiment of the present invention, the multi-angle welding mechanism includes a mounting frame 21 fixedly mounted on the top of the base 1, and guide rails fixedly mounted and connected are installed on both sides of the inner top wall of the mounting frame 21, and a slidably connected electric slide rail is installed between the two guide rails, and a slidably connected moving block is installed on the electric slide rail, and a fixedly connected second cylinder is installed at the bottom of the moving block, and a fixedly connected lifting plate is installed at the output end of the second cylinder, and a fixedly connected second motor is installed on the top of the lifting plate, and the output end of the second motor passes through the lifting plate and is installed with a fixedly connected welding block, and the welding block is installed with a rotatably connected adjusting block through a rotating shaft, and a welding head is provided at the end of the adjusting block away from the welding block, and a third Motor, the output end of the third motor is fixedly connected to one end of the rotating shaft; through the setting of the multi-angle welding mechanism, it is convenient to carry out multi-angle welding, and the welding efficiency is improved. The guide rail can be started according to the needs. A driving member is arranged on the guide rail. The two guide rails drive the electric slide rail to move, and the electric slide rail is started. The electric slide rail drives the welding head thereunder to move to the welding position through the moving block, and the lifting plate is driven up and down by the second cylinder under the moving block. Through the setting of the second motor, the welding block is driven to rotate, and the welding block drives the adjusting block to rotate through the rotating shaft, and then drives the welding head to rotate. At the same time, through the setting of the third motor, the third motor starts to drive the rotating shaft, and then it is convenient to adjust the angle of the cover plate block, and then it is convenient to change the angle of the welding head thereunder, and perform multi-angle and multi-position welding.

[0030] As an embodiment of the present invention, a limit assembly is arranged in the heating seat 6, and the limit assembly includes a through slot opened in the adjusting plate 83, and a rotatably connected driving rod is installed on the inner side wall of the through slot, and one end of the driving rod passes through the heating seat 6 and is connected to the outside, and a second gear connected to the driving rod is installed on the circumference of the rod wall located in the through slot, and a slidably connected limit plate is installed in the through slot, and a fixedly connected second rack is installed on the side of the limit plate close to the second gear, and the second rack is meshed with the second gear, and one end of the limit plate extends out of the groove and is inserted into The limit assembly is set up to facilitate limiting the adjustment plate 83, and also facilitate limiting the adjustment plate 83 when it moves at different distances. That is, when the adjustment plate 83 is to be pushed, the driving rod is rotated at one end located on the outside, and the driving rod drives the second gear to rotate, and then the second gear drives the second rack to move, and then the second gear drives the limit plate through the second rack, so that one end of the limit plate moves out of the slot, and then the movement of the adjustment plate 83 can be adjusted. When the adjustment is completed, the driving rod can be reversed so that the limit plate is inserted into the corresponding slot at this time.

[0031] As an embodiment of the present invention, a slide groove 10 is provided at the top of the threaded plate 5, and a slidably connected driving block is installed in the slide groove 10. The top end of the driving block extends out of the slide groove 10 and is fixedly connected to the bottom of the heating seat 6. By using the slide groove 10 and the slider in combination, the stability of the movement of the heating seat 6 is ensured.

[0032] As an embodiment of the present invention, the length of the welding block is smaller than the length of the adjusting block, four groups of second cylinders are provided, and the four groups of second cylinders are distributed in a ring, an annular groove is provided at the bottom of the lifting plate, a connecting block is slidably installed in the annular groove, and the bottom end of the connecting block extends out of the annular groove and is fixedly connected to the top of the third motor; through the setting of the annular groove and the connecting block, the stability of the third motor during rotation is easily ensured.

[0033] As an embodiment of the present invention, a third cylinder 12 is fixedly installed on both sides of the top of the base 1, and a push plate 13 is detachably installed on the output end of the third cylinder 12, and a mounting groove is provided on the push plate 13; the third cylinder 12 is used in conjunction with the push plate 13 thereon, so as to facilitate the movement of the components welded to the heat pipe to dock the heated heat pipe.

[0034] As an embodiment of the present invention, a lifting groove 14 is provided on the top of the base 1, a fourth cylinder 15 is fixedly installed on the inner bottom wall of the lifting groove 14, a support seat 16 is fixedly installed on the output end of the fourth cylinder 15, and a support groove is provided on the top of the support seat 16; by cooperating with the third cylinder 12 and the support seat 16, it is convenient to support the heated heat pipe, and to start the partially welded heat pipe, reverse it or continue welding.

[0035] As an embodiment of the present invention, a fume extractor is fixedly installed on the top of the mounting frame 21; the fume extractor is arranged to absorb the fumes during welding and avoid the fumes affecting the workers.

[0036] Working principle: before welding, start the first motor 4, the first motor 4 drives the double-headed threaded rod 3 to rotate, the double-headed threaded rod 3 drives the two threaded plates 5 thereon to move away from each other, and then drives the heating seat 6 thereon to move, and then the heating tube can be placed between the two heating seats 6, and then the first motor 4 is reversed to drive the two heating seats 6 to move closer to each other, so that the two ends of the heat dissipation tube are inserted into the heating holes opened on the two heating seats 6, and then the electromagnetic heating controller connected to the heating coil 89 can be started to heat, and at the same time, through the setting of the heating mechanism 8, while the two ends of the heat dissipation tube can be heated, the multiple heating rods can also be adjusted according to the size and shape of the heat dissipation tube. The spacing between the plurality of heating rods is changed, that is, by moving the adjustment plate 83, the adjustment plate 83 drives the rack to move, the rack is meshed with the gear, and then the adjustment plate 83 drives the heating ring 81 to rotate through the gear and the rack, and along with the rotation of the heating ring 81, the adjustment rod 86 located in the adjustment inclined groove 85 moves, and then the adjustment rod 86 drives the heating rod to move through the transmission block 87, and then the spacing between the plurality of heating rods is changed, and the setting of the sliding block and the groove, the groove is also inclined, so that the sliding block can rotate along with the heating ring 81, and at the same time the heating seat 6 can cooperate with the first cylinder 7, that is, start the first cylinder 7, the first cylinder 7 drives the heating seat 6 to move, clamping the heat dissipation pipe to the welding area, and then During the welding process, there is no need to place the heat dissipation pipe as a whole in the heating furnace for heating and melting. The multi-angle welding mechanism is set to facilitate multi-angle welding and improve the welding efficiency. The guide rail can be started as needed. A driving member is set on the guide rail. The two guide rails drive the electric slide rail to move, and the electric slide rail is started. The electric slide rail drives the welding head thereunder to move to the welding position through the moving block, and the lifting plate is driven up and down by the second cylinder under the moving block. The second motor is set to drive the welding block to rotate, and the welding block drives the adjusting block to rotate through the rotating shaft, and then drives the welding head to rotate. At the same time, the third motor is set to start and drive the rotating shaft Drive, and then it is convenient to adjust the angle of the cover plate block, and then it is convenient to change the angle of the welding head thereunder, and perform welding at multiple angles and positions. Through the setting of the limit assembly, it is convenient to limit the adjusting plate 83, and it is also convenient to cooperate with the adjusting plate 83 to limit it when it moves different distances. That is, when the adjusting plate 83 is to be pushed, the driving rod is rotated at one end of the outside, and the driving rod drives the second gear to rotate, and then the second gear drives the second rack to move, and then the second gear drives the limiting plate through the second rack, so that one end of the limiting plate moves out of the slot, and then the movement of the adjusting plate 83 can be adjusted. When the adjustment is completed, the driving rod can be reversed so that the limiting plate is inserted into the corresponding slot at this time.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A multifunctional welding machine, characterized in that: It comprises a base (1) and a multi-angle welding mechanism, wherein a double-headed threaded rod (3) is rotatably mounted in the base (1), a first motor (4) is fixedly mounted on one end of the base (1), an output end of the first motor (4) passes through the base (1) and is fixedly connected to one end of the double-headed threaded rod (3) through a coupling, threaded plates (5) are threadedly mounted on both ends of the outer wall of the double-headed threaded rod (3), a heating seat (6) is arranged on the top of the threaded plate (5), the top of the threaded plate (5) extends out of a clamping groove provided on the top of the base (1), a first cylinder (7) is fixedly mounted on the top of the threaded plate (5), and the output end of the first cylinder (7) is fixedly connected to a side surface of the heating seat (6); A heating mechanism (8) is arranged in the heating seat (6), and the heating mechanism (8) comprises a heating ring (81) arranged in the heating seat (6), and a first gear (82) is fixedly mounted on the outer wall circumference of the heating ring (81), and a slidingly connected adjustment plate (83) is installed at the bottom of the heating seat (6), and a first rack (84) is fixedly mounted on the top of the adjustment plate (83), and the first rack (84) is meshingly connected with the first gear (82), and an adjustment inclined groove (85) is provided on the heating ring (81), and the adjustment inclined groove (85) is provided on the outer wall circumference of the heating ring (81). 5) is installed with a slidably connected adjustment rod (86), one end of the adjustment rod (86) extends out of an adjustment inclined groove (85) and is installed with a fixedly connected transmission block (87), a side of the transmission block (87) close to the heating ring (81) is installed with a fixedly connected heating rod (810), the outer wall of the heating rod (810) is wound with a heating coil (89), grooves are opened on both sides of the inner wall of the heating seat (6), a slidably connected sliding block is installed in the groove, one end of the sliding block extends out of the groove and is fixedly connected to one side of the transmission block (87).

2. A multifunctional welding machine according to claim 1, characterized in that: The multi-angle welding mechanism comprises a mounting frame (21) fixedly mounted on the top of the base (1), guide rails fixedly mounted and connected are mounted on both sides of the inner top wall of the mounting frame (21), an electric slide rail slidably connected is mounted between the two guide rails, a sliding block slidably connected is mounted on the electric slide rail, a second cylinder fixedly mounted on the bottom of the moving block, a lifting plate fixedly mounted on the output end of the second cylinder, a second motor fixedly mounted on the top of the lifting plate, the output end of the second motor passes through the lifting plate and is fixedly mounted on a welding block, the welding block is rotatably mounted on an adjusting block via a rotating shaft, a welding head is arranged at one end of the adjusting block away from the welding block, a third motor is arranged at the bottom of the lifting plate, and the output end of the third motor is fixedly connected to one end of the rotating shaft.

3. A multifunctional welding machine according to claim 1, characterized in that: A limit assembly is arranged in the heating seat (6), and the limit assembly includes a through slot provided in the adjustment plate (83), a rotatably connected driving rod is installed on the inner side wall of the through slot, one end of the driving rod passes through the heating seat (6) and is connected to the outside, a second gear is circumferentially installed on the rod wall of the driving rod located in the through slot, a slidably connected limit plate is installed in the through slot, a fixedly connected second rack is installed on a side of the limit plate close to the second gear, the second rack is meshed with the second gear, and one end of the limit plate extends out of a groove and is inserted into a slot provided in the inner side wall of the heating seat (6).

4. A multifunctional welding machine according to claim 1, characterized in that: A slide groove (10) is provided at the top of the threaded plate (5), a slidably connected driving block is installed in the slide groove (10), and the top end of the driving block extends out of the slide groove (10) and is fixedly connected to the bottom of the heating seat (6).

5. A multifunctional welding machine according to claim 2, characterized in that: The length of the welding block is smaller than that of the adjusting block. Four groups of second cylinders are provided, and the four groups of second cylinders are distributed in a ring. An annular groove is provided at the bottom of the lifting plate, and a connecting block is slidably installed in the annular groove. The bottom end of the connecting block extends out of the annular groove and is fixedly connected to the top of the third motor.

6. A multifunctional welding machine according to claim 1, characterized in that: A third cylinder (12) is fixedly mounted on both sides of the top of the base (1), and a push plate (13) is detachably mounted on the output end of the third cylinder (12), wherein a mounting groove is provided on the push plate (13).

7. A multifunctional welding machine according to claim 1, characterized in that: A lifting groove (14) is provided on the top of the base (1), a fourth cylinder (15) is fixedly mounted on the inner bottom wall of the lifting groove (14), a support seat (16) is fixedly mounted on the output end of the fourth cylinder (15), and a support groove is provided on the top of the support seat (16).

8. A multifunctional welding machine according to claim 2, characterized in that: A smoking machine is fixedly mounted on the top of the mounting frame (21).

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