Hot dip galvanized steel welding production and processing equipment

Abstract

The present invention belongs to the field of welding technology, and discloses a hot-dip galvanized steel welding manufacturing and processing equipment; including a supporting component; a positioning component; a pulling component; a welding component; a preheating component and a pushing component. The present invention cooperates with the pulling component and the pushing component, and the first hydraulic rod and the second hydraulic rod increase the same stroke, and the pulling component moves to the right by the same distance at the same time. After completion, the first hydraulic rod and the second hydraulic rod shorten the stroke again, and the second movable block moves synchronously, and so on and so forth, and the displacement distance continues to increase. At this time, the molten iron between the positioning component and the two steels and the unsolidified molten iron inside the positioning component will be released from the top of the welded steel under the bidirectional push-pull movement, so as to facilitate the removal of the positioning component and form a relatively smooth weld, solving the problem of mold rupture in the reciprocating unidirectional pushing process of traditional equipment, causing weld nodules to be deformed and difficult to remove, and the mold to be difficult to remove.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, and in particular relates to hot-dip galvanized steel welding manufacturing and processing equipment. Background Art

[0002] Hot-dip galvanized steel is a material formed by combining steel and zinc. The zinc layer can effectively prevent the steel from contacting with oxygen and moisture in the external environment. In the use of hot-dip galvanized steel, welding is often required to connect two pieces of steel together. Aluminothermic welding is widely used because of its simplicity and high efficiency.

[0003] Thermite welding directly utilizes the heat of chemical reaction of metal compounds as a heat source, usually aluminum powder and iron oxide, through superheated (reduced) molten metal, directly or indirectly heating the work, forming a fusion weld joint of a certain shape and size that meets engineering requirements in the welding chamber of a special graphite mold. However, after welding is completed, the cast mold and the weld joint that has not yet cooled and is in a molten state will contact the two pieces of steel to form a weld nodule. The traditional solution is to push the mold back and forth in one direction to loosen it and then remove it. However, during the pushing process, the mold will expand and contract due to the high-temperature molten iron inside the mold, which will greatly affect the strength of the mold, resulting in the rupture of the mold during the reciprocating unidirectional pushing process, causing the weld nodule to be deformed and difficult to remove, and the mold to be difficult to remove. Summary of the invention

[0004] The object of the present invention is to provide a hot-dip galvanized steel welding manufacturing and processing equipment to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hot-dip galvanized steel welding manufacturing and processing equipment, comprising a support assembly, a positioning assembly is movably installed at the middle position of the top of the support assembly, and a linkage preheating welding mechanism includes a pulling assembly, the pulling assembly is movably installed on the right side of the positioning assembly, a welding assembly is fixedly installed on the back of the positioning assembly, and a preheating assembly is fixedly installed on the front side of the positioning assembly;

[0006] A pushing assembly, the pushing assembly includes two groups of connecting rods, the third bends of the two groups of connecting rods are penetrated by a first hydraulic rod, the top outer edges of the two groups of connecting rods are penetrated by a second hydraulic rod, the outer edges of the telescopic ends of the two first hydraulic rods and the second hydraulic rod are fixedly connected to two C-shaped blocks, the telescopic end of the second hydraulic rod is fixedly connected to a first trapezoidal block, and the telescopic ends of the two first hydraulic rods are fixedly connected to a second trapezoidal block.

[0007] Preferably, the supporting assembly includes a base plate, two tracks are fixedly installed on the top of the base plate, the inner left sides of the two tracks are movably connected to the first movable block, the inner walls of the two first movable blocks are fixedly connected to the connecting rod, the inner right sides of the two tracks are movably connected to the second movable block, and the interiors of the first movable block and the second movable block are fixedly installed with electric wheels so that they can move left and right in the track.

[0008] Preferably, the positioning assembly includes two horizontal plates, both of which are movably connected to the top of the bottom plate, and two vertical plates are installed through the inside of the two horizontal plates. The tops of the two vertical plates are fixedly connected with a top plate, and an elliptical groove is provided at the middle position of the top plate. A rectangular hole is provided on the top of the two horizontal plates, and iron ears are hung on the outer sides of the two rectangular holes.

[0009] Preferably, the pulling assembly includes four U-shaped rods, the bottom ends of the four U-shaped rods are fixedly mounted on the top of the second movable block, the four U-shaped rods together form an X-shaped connecting rod, the top of the intersection of the four U-shaped rods is fixedly connected to an electric shaft, the front and rear sides of the electric shaft are fixedly connected to clamps, the inner walls of the two clamps are movably hinged with circular shafts, the inner outer edges of the two circular shafts are fixedly connected with connecting blocks, and the middle parts of the two connecting blocks are movably hinged with a rotating shaft.

[0010] Preferably, the welding assembly includes a first rotating block, which is fixedly installed on the top of the base plate, a column is fixedly connected to the top of the first rotating block, four connecting tubes are fixedly connected to the outer edge of the column, a first rectangular plate is fixedly installed at the tail ends of the four connecting tubes, a crucible is installed through the middle position of the first rectangular plate, four third hydraulic rods are fixedly connected to the bottom of the first rectangular plate, the telescopic ends of the four third hydraulic rods are fixedly connected to the second rectangular plate, a blanking head is inserted in the middle position of the second rectangular plate, the upper middle position of the blanking head is movably installed inside the crucible, and a wave groove is provided on the inner wall of the blanking head.

[0011] Preferably, the preheating assembly includes a second rotating block, which is fixedly mounted on the top of the base plate, a bent rod is fixedly connected to the top of the second rotating block, four liquid inlet pipes are fixedly connected to the other end of the bent rod, the tail ends of the four liquid inlet pipes are fixedly connected to a metal shell, and a ventilation groove is provided on the top of the metal shell.

[0012] Preferably, the first rotating block and the second rotating block are both driven by electric motors, and the output shafts are both upward, and the welding assembly and the preheating assembly are located directly above the positioning assembly after rotation.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. The present invention cooperates with the pulling component and the pushing component. The first hydraulic rod and the second hydraulic rod increase the same stroke, and the pulling component moves to the right by the same distance. After completion, the first hydraulic rod and the second hydraulic rod shorten the stroke again, and the second movable block moves synchronously, and so on. The displacement distance increases continuously. At this time, the molten iron between the positioning component and the two steels and the unsolidified molten iron inside the positioning component will be released from the top of the welded steel under the bidirectional push-pull movement, so as to facilitate the removal of the positioning component and form a relatively smooth weld, which solves the problem of mold rupture in the reciprocating unidirectional pushing process of traditional equipment, causing weld nodule deformation that is inconvenient to remove and the mold being difficult to remove.

[0015] 2. The present invention is equipped with an adjustable welding assembly. When the blanking head is aligned with the elliptical groove, the distance of the blanking head close to the elliptical groove can be adjusted by adjusting the stroke of the four third hydraulic rods. When the stroke of the four third hydraulic rods increases, the blanking head is closer to the elliptical groove, and vice versa. After the adjustment is completed, aluminum powder and iron oxide are poured into the crucible and ignited. The aluminum plays a role of supporting combustion to form aluminum-containing molten iron, which is cast between two steels after passing through the wave trough and the elliptical groove. Since the density of iron is greater than that of aluminum, the molten iron will sink to fill the weld, while the molten aluminum will rise and flow into the iron ear for collection. The adjustable casting head ensures that the molten iron can fully fall into the welding area.

[0016] 3. The present invention is equipped with a preheating assembly. Through the rotation of the second rotating block, the metal shell can be aligned just above the elliptical groove. The liquefied gas is transported and burned in the liquid inlet pipe. Through the guidance of the metal shell, the flame is downward to preheat the areas to be welded of the two steel materials, which can reduce the temperature difference generated during welding. The ventilation grooves on the top of the metal shell are used for tempering and oxygen circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 A schematic diagram of the structure enlargement in the middle;

[0019] Figure 3 For the present invention Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0020] Figure 4 This is a schematic diagram of the support assembly structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the positioning component of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of the driving component of the present invention;

[0023] Figure 7 It is a schematic diagram of the structure of the pulling assembly of the present invention;

[0024] Figure 8 This is a schematic diagram of the structure of the welding assembly of the present invention;

[0025] Fig. 9 It is a schematic diagram of the structure of the preheating component of the present invention.

[0026] In the figure: 1, support assembly; 2, positioning assembly; 3, pushing assembly; 4, pulling assembly; 5, welding assembly; 6, preheating assembly; 11, bottom plate; 12, track; 13, first movable block; 14, second movable block; 21, horizontal plate; 22, vertical plate; 23, top plate; 24, elliptical groove; 25, iron ear; 31, connecting rod; 32, first hydraulic rod; 33, second hydraulic rod; 34, C-block; 35, first trapezoidal block; 36, The second trapezoidal block; 41. U-shaped rod; 42. electric shaft; 43. gripper; 44. round shaft; 45. connecting block; 46. rotating shaft; 51. first rotating block; 52. column; 53. connecting pipe; 54. first rectangular plate; 55. crucible; 56. third hydraulic rod; 57. second rectangular plate; 58. blanking head; 59. wave groove; 61. second rotating block; 62. bending rod; 63. liquid inlet pipe; 64. metal shell; 65. ventilation groove. DETAILED DESCRIPTION

[0027] 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.

[0028] like Figures 1 to 9 As shown, an embodiment of the present invention provides a hot-dip galvanized steel welding manufacturing and processing equipment, including a support component 1, a positioning component 2 is movably installed at the top middle position of the support component 1, and also includes a linkage preheating welding mechanism, which includes a pulling component 4, the pulling component 4 is movably installed on the right side of the positioning component 2, a welding component 5 is fixedly installed on the back of the positioning component 2, and a preheating component 6 is fixedly installed on the front side of the positioning component 2;

[0029] The pushing assembly 3 includes two groups of connecting rods 31, the third bends of the two groups of connecting rods 31 are penetrated with a first hydraulic rod 32, the top outer edges of the two groups of connecting rods 31 are penetrated with a second hydraulic rod 33, the outer edges of the telescopic ends of the two first hydraulic rods 32 and the second hydraulic rods 33 are fixedly connected with two C-shaped blocks 34, the telescopic ends of the second hydraulic rods 33 are fixedly connected with a first trapezoidal block 35, and the telescopic ends of the two first hydraulic rods 32 are fixedly connected with a second trapezoidal block 36;

[0030] The first movable block 13 is used to move the pushing component 3 in the track 12 close to the left side of the positioning component 2 until the first trapezoidal block 35 and the two second trapezoidal blocks 36 abut against the outer edge of the positioning component 2 and then stop. At this time, the first hydraulic rod 32 and the second hydraulic rod 33 increase the same stroke, and the second movable block 14 also drives the pulling component 4 to move to the right by the same distance as the first hydraulic rod 32 and the second hydraulic rod 33. After completion, the first hydraulic rod 32 and the second hydraulic rod 33 shorten the stroke again, and the second movable block 14 moves synchronously, and so on and so forth, and the displacement distance continues to increase. At this time, the molten iron between the positioning component 2 and the two steels and the unsolidified molten iron inside the positioning component 2 will be released from the connection with the top of the welded steel under the bidirectional push-pull movement, so as to facilitate the removal of the positioning component 2 and form a relatively smooth weld, which solves the problem of mold rupture in the reciprocating unidirectional pushing process of the traditional equipment, causing the weld nodule deformation to be inconvenient to remove and the mold to be difficult to remove;

[0031] Among them, the support component 1 includes a bottom plate 11, two rails 12 are fixedly installed on the top of the bottom plate 11, the left sides of the insides of the two rails 12 are movably connected to the first movable block 13, the inner walls of the two first movable blocks 13 are fixedly connected to the connecting rod 31, and the right sides of the insides of the two rails 12 are movably connected to the second movable block 14, and the insides of the first movable block 13 and the second movable block 14 are fixedly installed with electric wheels so that they can move left and right in the rails 12; the positioning component 2 includes two horizontal plates 21, the two horizontal plates 21 are movably abutted against the top of the bottom plate 11, and two vertical plates 22 are installed through the insides of the two horizontal plates 21, and the tops of the two vertical plates 22 are fixedly connected with a top plate 23, and an elliptical groove 24 is provided in the middle of the top plate 23, and a rectangular hole is provided on the tops of the two horizontal plates 21, and iron ears 25 are hung on the outer sides of the two rectangular holes;

[0032] The hot-dip galvanized steel can be placed on the top of the bottom plate 11, and the positioning assembly 2 can be installed at the place where the two steels are to be welded. The two horizontal plates 21 and the two vertical plates 22 will form a well-shaped structure to position the two steels again;

[0033] The pulling assembly 4 includes four U-shaped rods 41, the bottom ends of the four U-shaped rods 41 are fixedly mounted on the top of the second movable block 14, and the four U-shaped rods 41 together form an X-shaped connecting rod. The top of the intersection of the four U-shaped rods 41 is fixedly connected to an electric shaft 42, and the front and rear sides of the electric shaft 42 are fixedly connected to clamps 43. The inner walls of the two clamps 43 are movably hinged with round shafts 44, and the inner outer edges of the two round shafts 44 are fixedly connected to connecting blocks 45. The middle parts of the two connecting blocks 45 are movably hinged with a rotating shaft 46.

[0034] The two second movable blocks 14 move toward the positioning assembly 2 in the track 12, so that the two clamping hands 43 can be close to the outer edge of the positioning assembly 2. At this time, the electric shaft 42 is started again to rotate the two clamping hands 43 inward to clamp the positioning assembly 2. During the movement of the two clamping hands 43, the round shaft 44, the connecting block 45 and the rotating shaft 46 also move synchronously to form an auxiliary connection structure;

[0035] The welding assembly 5 includes a first rotating block 51, which is fixedly mounted on the top of the bottom plate 11. A column 52 is fixedly connected to the top of the first rotating block 51. Four connecting pipes 53 are fixedly connected to the outer edge of the column 52. A first rectangular plate 54 is fixedly mounted on the tail ends of the four connecting pipes 53. A crucible 55 is installed through the middle of the first rectangular plate 54. Four third hydraulic rods 56 are fixedly connected to the bottom of the first rectangular plate 54. The telescopic ends of the four third hydraulic rods 56 are fixedly connected to the second rectangular plate 57. A blanking head 58 is inserted in the middle of the second rectangular plate 57. The upper middle part of the blanking head 58 is movably mounted inside the crucible 55. A wave groove 59 is provided on the inner wall of the blanking head 58.

[0036] After preheating, the metal shell 64 is rotated away by the second rotating block 61, and then the first rotating block 51 is rotated again so that the blanking head 58 can be aligned with the elliptical groove 24. By adjusting the stroke of the four third hydraulic rods 56, the distance between the blanking head 58 and the elliptical groove 24 can be adjusted. When the stroke of the four third hydraulic rods 56 increases, the blanking head 58 is closer to the elliptical groove 24, and vice versa. After the adjustment is completed, aluminum powder and iron oxide are poured into the crucible 55 and ignited. Aluminum plays a role in combustion, forming aluminum-containing molten iron, which passes through the wave groove 59 and the elliptical groove 24 and is cast between the two steels. Since the density of iron is greater than that of aluminum, the molten iron will sink to fill the weld, while the molten aluminum will rise and flow into the iron ear 25 for collection;

[0037] The preheating assembly 6 includes a second rotating block 61, which is fixedly mounted on the top of the bottom plate 11. A bent rod 62 is fixedly connected to the top of the second rotating block 61. Four liquid inlet pipes 63 are fixedly connected to the other end of the bent rod 62. The tail ends of the four liquid inlet pipes 63 are fixedly connected to a metal shell 64. A ventilation slot 65 is provided on the top of the metal shell 64. Both the first rotating block 51 and the second rotating block 61 are driven by electric motors, and the output shafts are both upward. After rotation, the welding assembly 5 and the preheating assembly 6 can be located just above the positioning assembly 2.

[0038] By rotating the second rotating block 61, the metal shell 64 can be aligned just above the elliptical groove 24, and the liquefied gas is transported and burned in the liquid inlet pipe 63. Through the guidance of the metal shell 64, the flame is directed downward to preheat the areas to be welded of the two steel materials, thereby reducing the temperature difference generated during welding. The ventilation groove 65 on the top of the metal shell 64 is used for tempering and oxygen ventilation.

[0039] Working principle:

[0040] When using the device, first place two sections of hot-dip galvanized steel to be welded on the top of the bottom plate 11, and align the two steels as much as possible, leaving a certain gap. At this time, install the positioning component 2 at the welding position of the two steels, and the two horizontal plates 21 and the two vertical plates 22 form a well-shaped structure. Position the two steels again, and the preparation work is completed;

[0041] Before welding, the two steel materials need to be preheated. The second rotating block 61 rotates so that the metal shell 64 can be aligned with the top of the elliptical groove 24. The liquid inlet pipe 63 delivers liquefied gas and burns. The flame is guided downward by the metal shell 64 to preheat the welding area of ​​the two steel materials to reduce the temperature difference during welding. The ventilation slot 65 on the top of the metal shell 64 is used for tempering and oxygen ventilation.

[0042] After preheating, the metal shell 64 is rotated away by the second rotating block 61, and then the first rotating block 51 is rotated again so that the blanking head 58 can be aligned with the elliptical groove 24. By adjusting the stroke of the four third hydraulic rods 56, the distance between the blanking head 58 and the elliptical groove 24 can be adjusted. When the stroke of the four third hydraulic rods 56 increases, the blanking head 58 is closer to the elliptical groove 24, and vice versa. After the adjustment is completed, aluminum powder and iron oxide are poured into the crucible 55 and ignited. Aluminum plays a role in combustion to form aluminum-containing molten iron, which passes through the wave groove 59 and the elliptical groove 24 and is cast between the two steels. Since the density of iron is greater than that of aluminum, the molten iron will sink to fill the weld, while the molten aluminum will rise and flow into the iron ear 25 for collection. After the casting is completed, the welding assembly 5 rotates away from the top of the elliptical groove 24;

[0043] At this time, the pulling component 4 is started again, and the two second movable blocks 14 move toward the positioning component 2 in the track 12, so that the two clamping hands 43 can be close to the outer edge of the positioning component 2. At this time, the electric shaft 42 is started again to rotate the two clamping hands 43 inward to clamp the positioning component 2. During the movement of the two clamping hands 43, the round shaft 44, the connecting block 45 and the rotating shaft 46 also move synchronously to form an auxiliary connection structure;

[0044] After the pulling component 4 has clamped the positioning component 2, the pushing component 3 is started again, and the pushing component 3 is moved in the track 12 close to the left side of the positioning component 2 through the first movable block 13, until the first trapezoidal block 35 and the two second trapezoidal blocks 36 abut against the outer edge of the positioning component 2 and then stop. At this time, the first hydraulic rod 32 and the second hydraulic rod 33 increase the same stroke, and the second movable block 14 also drives the pulling component 4 to move to the right by the same distance as the first hydraulic rod 32 and the second hydraulic rod 33. After completion, the first hydraulic rod 32 and the second hydraulic rod 33 shorten the stroke again, and the second movable block 14 moves synchronously, and so on and so forth, and the displacement distance continues to increase. At this time, the molten iron between the positioning component 2 and the two steels and the inside of the positioning component 2 that has not yet solidified will be released from the top of the welded steel under the bidirectional push-pull movement, thereby facilitating the removal of the positioning component 2 and forming a relatively smooth weld, which is convenient for the next processing step, and the workflow ends here.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot dip galvanized steel welding manufacturing and processing equipment, comprising a support assembly (1), characterized in that: A positioning assembly (2) is movably mounted at the middle position of the top of the support assembly (1), and further comprises: A linkage preheating welding mechanism, comprising a pulling component (4), the pulling component (4) being movably mounted on the right side of the positioning component (2), a welding component (5) being fixedly mounted on the back of the positioning component (2), and a preheating component (6) being fixedly mounted on the front side of the positioning component (2); A pushing assembly (3), the pushing assembly (3) comprising two groups of connecting rods (31), the third bends of the two groups of connecting rods (31) being penetrated by a first hydraulic rod (32), the top outer edges of the two groups of connecting rods (31) being penetrated by a second hydraulic rod (33), the outer edges of the telescopic ends of the two first hydraulic rods (32) and the second hydraulic rod (33) being fixedly connected to two C-shaped blocks (34), the telescopic ends of the second hydraulic rod (33) being fixedly connected to a first trapezoidal block (35), and the telescopic ends of the two first hydraulic rods (32) being fixedly connected to a second trapezoidal block (36).

2. The hot-dip galvanized steel welding and processing equipment according to claim 1 is characterized in that: The support assembly (1) comprises a bottom plate (11), two rails (12) are fixedly mounted on the top of the bottom plate (11), the left sides of the insides of the two rails (12) are movably connected to first movable blocks (13), the inner walls of the two first movable blocks (13) are fixedly connected to a connecting rod (31), the right sides of the insides of the two rails (12) are movably connected to second movable blocks (14), and the insides of the first movable blocks (13) and the second movable blocks (14) are fixedly mounted with electric wheels so that they can move left and right in the rails (12).

3. The hot-dip galvanized steel welding and processing equipment according to claim 2 is characterized in that: The positioning assembly (2) comprises two transverse plates (21), the two transverse plates (21) are movably connected to the top of the bottom plate (11), two longitudinal plates (22) are installed through the inside of the two transverse plates (21), the top of the two longitudinal plates (22) are fixedly connected with a top plate (23), an elliptical groove (24) is provided in the middle of the top plate (23), a rectangular hole is provided on the top of the two transverse plates (21), and iron ears (25) are hung on the outer sides of the two rectangular holes.

4. The hot-dip galvanized steel welding and processing equipment according to claim 3 is characterized in that: The pulling assembly (4) comprises four U-shaped rods (41), the bottom ends of the four U-shaped rods (41) are fixedly mounted on the top of the second movable block (14), the four U-shaped rods (41) together form an X-shaped connecting rod, the top of the intersection of the four U-shaped rods (41) is fixedly connected to an electric shaft (42), the front and rear sides of the electric shaft (42) are fixedly connected to clamping hands (43), the inner walls of the two clamping hands (43) are movably hinged with round shafts (44), the inner outer edges of the two round shafts (44) are fixedly connected to connecting blocks (45), and the middle parts of the two connecting blocks (45) are movably hinged with a rotating shaft (46).

5. The hot-dip galvanized steel welding manufacturing and processing equipment according to claim 4 is characterized in that: The welding assembly (5) comprises a first rotating block (51), the first rotating block (51) is fixedly mounted on the top of the bottom plate (11), the top of the first rotating block (51) is fixedly connected to a column (52), the outer edge of the column (52) is fixedly connected to four connecting pipes (53), the tail ends of the four connecting pipes (53) are fixedly mounted to a first rectangular plate (54), a crucible (55) is installed through the middle of the first rectangular plate (54), four third hydraulic rods (56) are fixedly connected to the bottom of the first rectangular plate (54), the telescopic ends of the four third hydraulic rods (56) are fixedly connected to a second rectangular plate (57), a blanking head (58) is inserted in the middle of the second rectangular plate (57), the upper middle portion of the blanking head (58) is movably mounted inside the crucible (55), and a wave groove (59) is provided on the inner wall of the blanking head (58).

6. The hot-dip galvanized steel welding and processing equipment according to claim 1 is characterized in that: The preheating assembly (6) comprises a second rotating block (61), the second rotating block (61) is fixedly mounted on the top of the bottom plate (11), a bent rod (62) is fixedly connected to the top of the second rotating block (61), the other end of the bent rod (62) is fixedly connected to four liquid inlet pipes (63), the tail ends of the four liquid inlet pipes (63) are fixedly connected to a metal shell (64), and a ventilation slot (65) is provided on the top of the metal shell (64).

7. The hot-dip galvanized steel welding manufacturing and processing equipment according to claim 5 is characterized by: The first rotating block (51) and the second rotating block (61) are both driven by electric motors, and the output shafts are both upwards. After rotation, the welding assembly (5) and the preheating assembly (6) are located directly above the positioning assembly (2).

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