A production device and production process of a conical head

Abstract

The present invention proposes a production device for conical heads, comprising a base, a welding die base is provided in the middle part of the base, a rotary drive integration is provided at the bottom of the top cross beam of the pillar, a lifting hydraulic cylinder is connected to the rotating end of the bottom of the rotary drive integration, the telescopic rod of the lifting hydraulic cylinder extends vertically downward, and the lower end of the telescopic rod of the lifting hydraulic cylinder is connected to the welding rod frame, the bottom end of the welding rod frame is hinged to one end of the welding guide rod, and a welding assembly is connected to the welding guide rod. The present invention controls the second motor to drive the second gear, so that the second gear is meshed with the rack portion of the welding adjustment rod, and the second slide slides along the welding adjustment rod. The second slide pulls the welding guide rod through the pull rod, and the inclination of the welding guide rod is adjusted to be parallel to the inclination of the inner side of the head splicing steel plate, that is, the weld position of the welding assembly and the head splicing steel plate is adjusted to cooperate, so as to realize the welding adjustment of conical heads with different inclinations.

Description

Technical Field

[0001] The invention relates to the technical field of end cap production and manufacturing, and in particular to a production device and a production process of a conical end cap. Background Art

[0002] With the continuous enlargement of ultra-high pressure equipment, the wall thickness and size of the heads used in ultra-high pressure equipment are also increasing, and the strength level of the raw materials is also greatly improved, so the deformation resistance is greater, so the molding method of large-size ultra-thick plate high-strength heads generally requires welding. For example, the application number is CN202310852212.1, a production process for large container heads, which places six plates circumferentially on the welding equipment for welding. However, in this device, a notch is provided on the top of the welding seat, and the notch matches the welding head, resulting in a relatively single shape and size of the head that can be processed by the welding seat, which is inconvenient for welding conical heads of different inclinations, and the welding process needs to be performed manually, and the welding automation is low. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes a production device and a production process for a conical head to more accurately solve the above problems.

[0004] The present invention is achieved through the following technical solutions:

[0005] The present invention provides a production device for a conical head, comprising a base, a welding die seat is provided in the middle part of the base, the welding die seat is fixed to the base by bolts, the welding die seat is provided with a die groove for circumferential splicing and matching with the head splicing steel plate, the base and each assembly position of the head splicing steel plate are provided with a group of positioning tooling, the base is provided with a pillar in the shape of a "7"-shaped bracket, the bottom of the top cross beam of the pillar is provided with a rotating drive integration, the rotating end of the bottom of the rotating drive integration is connected with a lifting hydraulic cylinder, the telescopic rod of the lifting hydraulic cylinder extends vertically downward, and the lower end of the telescopic rod of the lifting hydraulic cylinder is connected to a welding rod frame, the bottom end of the welding rod frame is hinged to one end of a welding guide rod, the welding guide rod is connected with a welding assembly, the top of the welding rod frame is connected with a horizontally arranged welding adjustment rod, the extension direction of the welding adjustment rod is on the same side as the welding guide rod, the welding adjustment rod is connected with a positioning drive assembly, and the positioning drive assembly is connected with the welding guide rod through a pull rod The middle part is connected, and a limiting baffle in an annular array is provided in the mold groove, and the limiting baffles are respectively arranged at the splicing positions between the head splicing steel plates, and the positioning tooling includes a pair of shaft rod supports fixed on the base, and a first sliding shaft and a first screw rod are connected between the pair of shaft rod supports. A displacement support is provided on the first sliding shaft and the first screw rod, and a connecting seat is provided at the bottom of the displacement support to slide with the first sliding shaft, and the connecting seat is screwed with the first screw rod, and one end of the first screw rod is provided with a first hexagonal column end, and the displacement A vertically arranged second sliding shaft and a second screw rod are provided on the support, the second sliding shaft is fixed on the displacement support, the bottom end of the second screw rod is connected to the adapter seat provided on the displacement support, a lifting support is provided at the bottom of the second screw rod, the lifting support is connected to the second sliding shaft and the second screw rod, the second sliding shaft is slidably connected to the lifting support, the second screw rod is screwed to the lifting support, and a limiting top plate with an "L"-shaped cross section is provided on the inner side of the lifting support, and the limiting top plate is in conflict with the outer side of the top of the head splicing steel plate.

[0006] Furthermore, the first sliding shaft and the first screw rod are arranged horizontally, and the guides of the first sliding shaft and the first screw rod point to the center position of the tailor-made welding die base.

[0007] Furthermore, the welding assembly includes a first slide seat that is slidably connected to the welding guide rod, a first gear is connected inside the first slide seat, the upper edge of the welding guide rod is a rack portion, and the first gear is meshed with the rack portion of the welding guide rod, a welding gun is provided on the outer side of the first slide seat, and the extension direction of the welding end of the welding gun is perpendicular to the length direction of the welding guide rod, a first motor is provided on the side of the first slide seat away from the welding gun, and the output end of the first motor is connected to one end of the rotating shaft of the first gear.

[0008] Furthermore, the welding guide rod is a hollow rod body, and an air intake grille is provided on the side wall of the welding guide rod, and an exhaust interface is provided at the top of the welding guide rod, and the exhaust interface is connected to an external vacuum pump through an air guide pipe.

[0009] Furthermore, the positioning drive assembly includes a second slide seat that is slidably connected to the welding positioning rod, a second gear is connected to the top of the second slide seat, the upper edge of the welding positioning rod is a rack portion and the second gear is meshed with the rack portion of the welding positioning rod, a second motor is provided on one side of the second slide seat, and the output shaft end of the second motor is connected to one end of the rotating shaft of the second gear.

[0010] A production process for the production device of the conical head comprises the following steps:

[0011] S1: Pre-welding tooling: According to the inclination of the conical head, a welding die base with a die groove matching the inclination of the head is selected and fixed on the base, and then the bottom ends of several pieces of head splicing steel plates are placed in the die groove opened on the welding die base. Several pieces of head splicing steel plates are spliced ​​together to form a conical head body, and the lateral position of the head splicing steel plates is limited by the limit baffle in the die groove;

[0012] By adjusting the positioning tooling, the top of each head spliced ​​steel plate is limited and fixed, and by rotating the first hexagonal column end, the first screw rod is engaged and transmitted with the connecting seat provided at the bottom of the shift support, so that the shift support moves along the guide of the first sliding shaft, and by rotating the second hexagonal column end, the second screw rod is engaged and transmitted with the lifting support, so that the lifting support is lifted and lowered along the guide of the second sliding shaft, thereby adjusting the position of the limit top plate until the limit top plate contacts and limits the top edge position of the head spliced ​​steel plate, thereby completing the limit fixation of the head.

[0013] S2: Adjustment of the welding assembly before welding: by controlling the telescopic rod of the lifting hydraulic cylinder to descend, the bottom end of the welding guide rod is lowered to the inside of the head, and by controlling the second motor to drive the second gear, the second gear is meshed with the rack portion of the welding adjustment rod, and the second slide slides along the welding adjustment rod. The second slide pulls the welding guide rod through the pull rod, and the inclination of the welding guide rod is adjusted to be parallel to the inclination of the inner side of the head splicing steel plate. At this time, the welding end of the welding gun in the welding assembly conflicts with the splicing weld of the head splicing steel plate.

[0014] S3: Automatic welding: The first motor is controlled to drive the first gear so that the first gear meshes with the rack portion of the welding guide rod, thereby driving the first slide to move from bottom to top along the guide of the welding guide rod, that is, the welding gun is welded from bottom to top along the joint weld of the head joint steel plates. After welding one weld, the welding assembly is controlled to rotate to the next weld by the rotation drive integration, and the above welding process is repeated, thereby automatically completing the welding of the welds between the joint steel plates of each head;

[0015] S4: Waste gas treatment during welding: During the welding process of the welding torch, the exhaust interface on the top of the welding guide rod is connected to an external vacuum pump through a conduit. Under the operation of the vacuum pump, the waste gas generated during the welding process of the welding torch is sucked into the inner cavity of the welding guide rod along the suction grid, and finally discharged and treated uniformly by the vacuum pump.

[0016] Beneficial effects of the present invention:

[0017] 1. The present invention provides a replaceable welding die base for adapting to conical heads of different inclinations, and by adjusting the positioning tooling, the top of each head splicing steel plate is limited and fixed, which is convenient for limiting the conical heads of different diameters, simple to operate, and highly applicable;

[0018] 2. The present invention controls the second motor to drive the second gear, so that the second gear meshes with the rack portion of the welding adjustment rod, and the second slide slides along the welding adjustment rod. The second slide pulls the welding guide rod through the pull rod, and adjusts the inclination of the welding guide rod to be parallel to the inclination of the inner side of the head splicing steel plate, that is, adjusts the weld position of the welding assembly and the head splicing steel plate to achieve welding adjustment of conical heads with different inclinations;

[0019] 3. The present invention controls the first motor to drive the first gear, so that the first gear meshes with the rack portion of the welding guide rod, thereby driving the first slide to move from bottom to top along the guide of the welding guide rod, that is, the welding gun welds from bottom to top along the splicing welds of the head splicing steel plates. After welding one weld, the welding assembly is controlled to rotate to the next weld by the rotation drive integration, and the above welding process is repeated, thereby automatically completing the welding of the welds between the head splicing steel plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall first three-dimensional structure of the present invention;

[0021] Figure 2 is a schematic diagram of the overall second three-dimensional structure of the present invention;

[0022] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0023] Figure 4 for Figure 2 The enlarged view of point B in the middle;

[0024] Figure 5 It is a front view of the structure of the present invention;

[0025] Figure 6 It is a three-dimensional structural schematic diagram of the positioning tool in the present invention;

[0026] Figure 7 It is a top view of the structure of the present invention.

[0027] In the figure: 1, base; pillar 101,; 2, tailor-welded die base; 201, die groove; 202, limit baffle; 3, positioning tool; 301, shaft support; 302, first sliding shaft; 303, first screw rod; 3031, first hexagonal column end; 304, shift support; 3041, connecting seat; 305, second sliding shaft; 306, second screw rod; 3061, second hexagonal column end; 307, lifting support; 3071, limit top plate; 308, rotating Connector; 4. Rotary drive integration; 5. Lifting hydraulic cylinder; 6. Welding rod rack; 7. Welding guide rod; 701. Welding adjustment rod; 702. Intake grille; 703. Exhaust interface; 8. Welding assembly; 801. First slide; 802. First gear; 803. Welding gun; 804. First motor; 9. Adjustment drive assembly; 901. Pull rod; 902. Second slide; 903. Second gear; 904. Second motor; 10. Head splicing steel plate. DETAILED DESCRIPTION

[0028] 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. Example

[0029] A production device for a conical head includes a base 1, a welding die seat 2 is provided in the middle of the base 1, the welding die seat 2 is fixed to the base 1 by bolts, and a die groove 201 is provided on the welding die seat 2 for circumferentially splicing and matching with the head splicing steel plate 10. Figure 1 , Figure 2 and Figure 7 As shown, a ring-shaped array of limit baffles 202 are provided in the die groove 201. The limit baffles 202 are respectively arranged at the splicing positions between the head splicing steel plates 10 to limit the lateral position of each head splicing steel plate 10, thereby determining the position of the welding seam.

[0030] Combination Figure 5 , Figure 6 and Figure 7As shown, a set of positioning fixtures 3 are provided on the base 1 and corresponding to the assembly position of each head splicing steel plate 10. The positioning fixture 3 includes a pair of shaft rod supports 301 fixed on the base 1, a first sliding shaft 302 and a first screw rod 303 are connected between the pair of shaft rod supports 301, a displacement support 304 is provided on the first sliding shaft 302 and the first screw rod 303, and a connecting seat 3041 is provided at the bottom of the displacement support 304 to slide with the first sliding shaft 302, and the connecting seat 3041 The first hexagonal column end 3031 is screwed to the first screw rod 303, one end of the first screw rod 303 is provided with a first hexagonal column end 3031, the first sliding shaft 302 and the first screw rod 303 are arranged horizontally, and the first sliding shaft 302 and the first screw rod 303 are guided to the center position of the tailor-made welding die base 2, and the first hexagonal column end 3031 is rotated to make the first screw rod 303 mesh with the connecting seat 3041 provided at the bottom of the displacement support 304, so that the displacement support 304 moves along the first sliding shaft 30 2, a second sliding shaft 305 and a second screw rod 306 are vertically arranged on the displacement support 304, the second sliding shaft 305 is fixed on the displacement support 304, the bottom end of the second screw rod 306 is transferred to the transfer seat 308 arranged on the displacement support 304, a lifting support 307 is arranged at the bottom of the second screw rod 306, the second sliding shaft 305 and the second screw rod 306 are connected with the lifting support 307, the second sliding shaft 305 is slidably connected with the lifting support 307, and the second The second screw rod 306 is screwed with the lifting support 307. The inner side of the lifting support 307 is provided with a limit top plate 3071 with an "L"-shaped cross section, and the limit top plate 3071 is in conflict with the outer side of the top of the head splicing steel plate 10. By rotating the second hexagonal column end 3061, the second screw rod 306 and the lifting support 307 are meshed and transmitted, so that the lifting support 307 is lifted and lowered along the guide of the second sliding shaft 305, thereby adjusting the position of the limit top plate 3071.

[0031] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: the present invention is provided with a replaceable welding die base 2 for adapting to conical heads of different inclinations, and by adjusting the positioning tooling 3, the top of each head spliced ​​steel plate 10 is limited and fixed, which is convenient for limiting the conical heads of different diameters, simple operation and high applicability. Example

[0032] Combination Figure 2 , Figure 4 and Figure 5As shown, a support 101 in the shape of a "7"-shaped bracket is provided on the base 1, a rotary drive integration 4 is provided at the bottom of the top crossbeam of the support 101, a lifting hydraulic cylinder 5 is connected to the rotating end at the bottom of the rotary drive integration 4, the telescopic rod of the lifting hydraulic cylinder 5 extends vertically downward, and the lower end of the telescopic rod of the lifting hydraulic cylinder 5 is connected to a welding rod frame 6, the bottom end of the welding rod frame 6 is hinged to one end of a welding guide rod 7, a welding assembly 8 is connected to the welding guide rod 7, and a horizontally arranged welding adjustment rod 701 is connected to the top of the welding rod frame 6, and the extension direction of the welding adjustment rod 701 is parallel to the welding guide rod 7. On the same side, a positioning drive assembly 9 is connected to the welding positioning rod 701, and the positioning drive assembly 9 is connected to the middle part of the welding guide rod 7 through a pull rod 901. The positioning drive assembly 9 includes a second slide 902 that is slidably connected to the welding positioning rod 701, and a second gear 903 is connected to the top of the second slide 902. The upper edge of the welding positioning rod 701 is a rack portion and the second gear 903 is meshed with the rack portion of the welding positioning rod 701. A second motor 904 is provided on one side of the second slide 902, and the output shaft end of the second motor 904 is connected to one end of the rotating shaft of the second gear 903.

[0033] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: the present invention controls the second motor 904 to drive the second gear 903, so that the second gear 903 is engaged with the rack portion of the welding adjustment rod 701, and the second slide 902 slides along the welding adjustment rod 701. The second slide 902 pulls the welding guide rod 7 through the pull rod 901, and adjusts the inclination of the welding guide rod 7 to be parallel to the inner inclination of the head splicing steel plate 10, that is, adjusts the weld position of the welding assembly 8 and the head splicing steel plate 10 to achieve welding adjustment of conical heads with different inclinations. Example

[0034] Combination Figure 2 , Figure 3 and Figure 5 As shown, the welding assembly 8 includes a first slide 801 that is slidably connected to the welding guide rod 7, a first gear 802 is connected inside the first slide 801, the upper edge of the welding guide rod 7 is a rack portion, and the first gear 802 is meshed with the rack portion of the welding guide rod 7, a welding gun 803 is provided on the outer side of the first slide 801, and the extension direction of the welding end of the welding gun 803 is perpendicular to the length direction of the welding guide rod 7, a first motor 804 is provided on the side of the first slide 801 away from the welding gun 803, and the output end of the first motor 804 is connected to one end of the rotating shaft of the first gear 802, the first gear 802 is driven by controlling the first motor 804 to mesh with the rack portion of the welding guide rod 7, thereby driving the first slide 801 to move from bottom to top along the guide of the welding guide rod 7, that is, the welding gun 803 welds from bottom to top along the splicing weld of the head splicing steel plate 10.

[0035] It is worth mentioning that the welding guide rod 7 is a hollow rod body, and an air intake grille 702 is provided on the side wall of the welding guide rod 7. An exhaust interface 703 is provided at the top of the welding guide rod 7. The exhaust interface 703 is connected to an external vacuum pump through an air guide pipe. When the vacuum pump is working, the exhaust gas generated during the welding process of the welding gun 803 is sucked into the inner cavity of the welding guide rod 7 along the air intake grille 702, and finally discharged and processed by the vacuum pump.

[0036] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: the present invention controls the first motor 804 to drive the first gear 802, so that the first gear 802 is engaged with the rack portion of the welding guide rod 7, thereby driving the first slide 801 to move from bottom to top along the guide of the welding guide rod 7, that is, the welding gun 803 welds from bottom to top along the splicing welds of the head splicing steel plates 10. After welding one weld, the welding assembly 8 is controlled to rotate to the next weld by the rotation drive integration 4, and the above welding process is repeated, thereby automatically completing the welding of the welds between each head splicing steel plate 10.

[0037] A production process for a production device for a conical head, comprising the following steps:

[0038] S1: Pre-welding tooling: According to the inclination of the conical head, a welding die base 2 with a die groove 201 matching the inclination of the head is selected and fixed on the base 1, and then the bottom ends of several head splicing steel plates 10 are placed in the die groove 201 opened on the welding die base 2, and several head splicing steel plates 10 are spliced ​​to form a conical head body, and the lateral position of the head splicing steel plates 10 is limited by the limit baffle 202 in the die groove 201;

[0039] By adjusting the positioning fixture 3, the top of each head splicing steel plate 10 is limited and fixed, and by rotating the first hexagonal column end 3031, the first screw rod 303 is meshed and transmitted with the connecting seat 3041 provided at the bottom of the displacement support 304, so that the displacement support 304 moves along the guide of the first sliding shaft 302, and by rotating the second hexagonal column end 3061, the second screw rod 306 is meshed and transmitted with the lifting support 307, so that the lifting support 307 is lifted and lowered along the guide of the second sliding shaft 305, so as to adjust the position of the limit top plate 3071, until the limit top plate 3071 contacts and limits the top edge position of the head splicing steel plate 10, thereby completing the limit fixation of the head;

[0040] S2: Adjustment of the welding assembly before welding: by controlling the telescopic rod of the lifting hydraulic cylinder 5 to descend, the bottom end of the welding guide rod 7 is lowered to the inside of the head, and by controlling the second motor 904 to drive the second gear 903, the second gear 903 is meshed with the rack portion of the welding adjustment rod 701, and the second slide 902 slides along the welding adjustment rod 701. The second slide 902 pulls the welding guide rod 7 through the pull rod 901, and the inclination of the welding guide rod 7 is adjusted to be parallel to the inner side inclination of the head splicing steel plate 10. At this time, the welding end of the welding gun 803 in the welding assembly 8 conflicts with the splicing weld of the head splicing steel plate 10;

[0041] S3: Automatic welding: The first motor 804 is controlled to drive the first gear 802 so that the first gear 802 is meshed with the rack portion of the welding guide rod 7, thereby driving the first slide 801 to move from bottom to top along the guide of the welding guide rod 7, that is, the welding gun 803 is welded from bottom to top along the joint weld of the head joint steel plate 10. After welding one weld, the welding assembly 8 is controlled to rotate to the next weld by the rotation drive integration 4, and the above welding process is repeated, thereby automatically completing the welding of the welds between the head joint steel plates 10;

[0042] S4: Waste gas treatment during welding: During the welding process of the welding gun 803, the exhaust interface 703 on the top of the welding guide rod 7 is connected to an external vacuum pump through a conduit. Under the operation of the vacuum pump, the waste gas generated during the welding process of the welding gun 803 is sucked into the inner cavity of the welding guide rod 7 along the suction grille 702, and finally discharged and treated by the vacuum pump.

[0043] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. A production device for a conical head, comprising a base (1), characterized in that: A tailored welding die seat (2) is provided in the middle of the upper part of the base (1), and the tailored welding die seat (2) is fixed to the base (1) by bolts. A die groove (201) for circumferentially splicing and matching with the head splicing steel plate (10) is opened on the tailored welding die seat (2), and a group of positioning tools (3) are provided on the base (1) and at the assembly position corresponding to each head splicing steel plate (10). A "7"-shaped support pillar (101) is provided on the base (1), and a rotary drive assembly (4) is provided at the bottom of the top crossbeam of the pillar (101). A lifting hydraulic cylinder (5) is connected to the rotating end of the bottom of the rotary drive assembly (4), and the telescopic rod of the lifting hydraulic cylinder (5) extends vertically downward, and the lifting hydraulic cylinder (5) is provided with a plurality of positioning tools (3). ) is connected to a welding rod frame (6) at its lower end, the bottom end of the welding rod frame (6) is hinged to one end of a welding guide rod (7), the welding guide rod (7) is connected to a welding assembly (8), the top of the welding rod frame (6) is connected to a horizontally arranged welding position adjustment rod (701), the extension direction of the welding position adjustment rod (701) is on the same side as the welding guide rod (7), the welding position adjustment rod (701) is connected to a position adjustment drive assembly (9), the position adjustment drive assembly (9) is connected to the middle part of the welding guide rod (7) through a pull rod (901), and a ring-shaped array of limit baffles (202) are provided in the mold groove (201), and the limit baffles (202) are respectively arranged between the head splicing steel plates (10) The positioning tool (3) comprises a pair of shaft supports (301) fixed on the base (1), a first sliding shaft (302) and a first screw rod (303) are connected between the pair of shaft supports (301), a displacement support (304) is provided on the first sliding shaft (302) and the first screw rod (303), a connecting seat (3041) is provided at the bottom of the displacement support (304) and is slidably connected to the first sliding shaft (302), and the connecting seat (3041) is screwed to the first screw rod (303), a first hexagonal column end (3031) is provided at one end of the first screw rod (303), and a second sliding shaft (305) and a second screw rod (306) arranged vertically are provided on the displacement support (304). The second sliding shaft (305) is fixed on the displacement support (304), the bottom end of the second screw rod (306) is connected to the transfer seat (308) provided on the displacement support (304), the bottom of the second screw rod (306) is provided with a second hexagonal column end (3061), the second sliding shaft (305) and the second screw rod (306) are connected to the lifting support (307), the second sliding shaft (305) and the lifting support (307) are slidably connected, the second screw rod (306) and the lifting support (307) are screwed, and the inner side of the lifting support (307) is provided with a limit top plate (3071) with an "L"-shaped cross section, and the limit top plate (3071) is in conflict with the outer side of the top of the head splicing steel plate (10).

2. The production device of a conical head according to claim 1, characterized in that: The first sliding shaft (302) and the first screw rod (303) are arranged horizontally, and the guides of the first sliding shaft (302) and the first screw rod (303) point to the center position of the tailor-made welding die base (2).

3. The production device of a conical head according to claim 1 is characterized in that: The welding assembly (8) comprises a first slide (801) slidably connected to the welding guide rod (7), a first gear (802) being connected inside the first slide (801), an upper edge of the welding guide rod (7) being a rack portion, and the first gear (802) being meshed with the rack portion of the welding guide rod (7), a welding gun (803) being arranged on the outer side of the first slide (801), a welding end of the welding gun (803) extending in a direction perpendicular to the length direction of the welding guide rod (7), a first motor (804) being arranged on a side of the first slide (801) away from the welding gun (803), and an output end of the first motor (804) being connected to one end of a rotating shaft of the first gear (802).

4. The production device of a conical head according to claim 3 is characterized in that: The welding guide rod (7) is a hollow rod body, and an air suction grille (702) is provided on the side wall of the welding guide rod (7). An exhaust port (703) is provided at the top end of the welding guide rod (7), and the exhaust port (703) is externally connected to an exhaust pump through an air guide pipe.

5. The production device of a conical head according to claim 4, characterized in that: The positioning drive assembly (9) comprises a second slide seat (902) slidably connected to the welding positioning rod (701); a second gear (903) is connected to the top of the second slide seat (902); an upper edge of the welding positioning rod (701) is a rack portion and the second gear (903) is meshed with the rack portion of the welding positioning rod (701); a second motor (904) is provided on one side of the second slide seat (902), and an output shaft end of the second motor (904) is connected to one end of a rotating shaft of the second gear (903).

6. A production process for the production device of the conical head according to claim 5, characterized in that: The following steps are involved: S1: Pre-welding tooling: According to the inclination of the conical head, a welding die base (2) with a die groove (201) matching the inclination of the head is selected and fixed on the base (1); then, the bottom ends of a plurality of head splicing steel plates (10) are placed in the die groove (201) opened on the welding die base (2); the plurality of head splicing steel plates (10) are spliced ​​together to form a conical head body; and the lateral position of the head splicing steel plates (10) is limited by a limit baffle (202) in the die groove (201); By adjusting the positioning tool (3), the top of each head splicing steel plate (10) is limited and fixed, and by rotating the first hexagonal column end (3031), the first screw rod (303) is meshed with the connecting seat (3041) provided at the bottom of the displacement support (304) to move along the guide of the first sliding shaft (302). By rotating the second hexagonal column end (3061), the second screw rod (306) is meshed with the lifting support (307) to lift and lower along the guide of the second sliding shaft (305), thereby adjusting the position of the limit top plate (3071) until the limit top plate (3071) contacts and limits the top edge position of the head splicing steel plate (10), thereby completing the limit fixation of the head; S2: Adjustment of the welding assembly before welding: by controlling the telescopic rod of the lifting hydraulic cylinder (5) to descend, the bottom end of the welding guide rod (7) is lowered to the inside of the head, and by controlling the second motor (904) to drive the second gear (903), the second gear (903) is meshed with the rack portion of the welding adjustment rod (701), and the second slide (902) slides along the welding adjustment rod (701). The second slide (902) pulls the welding guide rod (7) through the pull rod (901), and the inclination of the welding guide rod (7) is adjusted to be parallel to the inner side inclination of the head splicing steel plate (10). At this time, the welding end of the welding gun (803) in the welding assembly (8) is in conflict with the splicing weld of the head splicing steel plate (10); S3: Automatic welding: The first motor (804) is controlled to drive the first gear (802), so that the first gear (802) meshes with the rack portion of the welding guide rod (7), thereby driving the first slide (801) to move from bottom to top along the guide of the welding guide rod (7), that is, the welding gun (803) welds along the joint welds of the head joint steel plates (10) from bottom to top. After welding one weld, the welding assembly (8) is controlled by the rotation drive assembly (4) to rotate to the next weld, and the above welding process is repeated, thereby automatically completing the welding of the welds between the various head joint steel plates (10); S4: Treatment of waste gas during welding: During the welding process of the welding gun (803), the exhaust interface (703) at the top of the welding guide rod (7) is connected to an external vacuum pump through a conduit. Under the operation of the vacuum pump, the waste gas generated during the welding process of the welding gun (803) is sucked into the inner cavity of the welding guide rod (7) along the suction grille (702), and finally discharged and treated by the vacuum pump.

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