Valve welding tool

Abstract

The invention relates to the technical field of valve welding, and discloses a valve welding tool which comprises a supporting and positioning mechanism, a pressure valve opening and closing structure is arranged in the supporting and positioning mechanism, a valve locking mechanism is installed on the surface of the opening and closing locking structure, and a pressing piece plugging mechanism is arranged on one side of the valve locking mechanism. And a lock valve opening and closing mechanism is arranged on one side of the pressing sheet plugging mechanism. According to the valve welding tool, through the arranged supporting and positioning mechanism, the pressure valve opening and closing structure, the valve locking mechanism, the pressure sheet plugging mechanism and the valve locking opening and closing mechanism, the valve can be fixed during use, meanwhile, an input port and an output port of the valve can be protected, molten metal liquid is prevented from easily falling into the valve during welding, and the welding quality is improved. In the using process, opening and closing of the connecting transverse column can be achieved only by forcibly operating the shifting handle with two hands, so that fool-proof design is formed, a user does not need to take and place a valve when holding a welding gun, and safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of valve welding, and particularly to a valve welding tooling. Background Art

[0002] A valve is a pipeline accessory used to open and close pipelines, control the flow direction, and adjust and control the parameters of the transported medium. According to its functions, it can be divided into shut-off valves, check valves, regulating valves, etc. A valve is a control component in a fluid transportation system and has functions such as cut-off, regulation, diversion, prevention of backflow, pressure stabilization, flow splitting, or overflow pressure relief. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metals, and radioactive media. According to the material, they are also divided into cast iron valves, cast steel valves, stainless steel valves, chrome molybdenum steel valves, chrome molybdenum vanadium steel valves, duplex steel valves, plastic valves, and non-standard customized valves, etc. In some cases, the valve flange ring is connected to the valve body by welding to provide stronger structural integrity and sealing performance, while in other cases, the flange ring may be fixed to other components by bolts, threads, or other connection methods.

[0003] When welding some valve flange rings, a fixing device is usually used to fix the valve body, and then welding is performed on the surfaces of the valve input end and output end. However, most of these fixing devices do not protect the input port and output port of the valve, and the molten metal during welding is very easy to fall into the valve interior, which easily causes damage to the internal switching valve of the valve. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a valve welding tooling, which solves the problems mentioned in the above background.

[0005] The present invention provides the following technical solutions: A valve welding tooling, comprising: a support and positioning mechanism, inside which a valve pressing and opening / closing structure is provided, a valve locking mechanism is installed on the surface of the opening / closing locking structure, a pressing piece plugging mechanism is arranged on one side of the valve locking mechanism, and a valve locking opening / closing mechanism is arranged on one side of the pressing piece plugging mechanism.

[0006] Preferably, the support and positioning mechanism includes a base, a receiving groove, a buffer pad, bolt foot rings, a receiving cylinder, a positioning sliding head, and a compression spring. The receiving grooves are respectively arranged on both sides of the base, the buffer pad is fixedly connected to the upper surface of the base, the bolt foot rings are integrally arranged at the four corners of the base respectively, the receiving cylinder is fixedly inserted into the inner side wall of the receiving groove, the positioning sliding head is slidably connected inside the receiving cylinder, and the compression spring is fixedly connected to one end of the positioning sliding head and is located inside the receiving cylinder.

[0007] Preferably, the supporting and positioning mechanism also includes an inner stop fork plate, a positioning groove, an extended connecting ear, an anti-wear slide cylinder, a guide roller and a mounting column. The inner stop fork plate is fixedly connected to both sides of the base through the mounting column. The positioning groove is opened at the top of the inner stop fork plate. The extended connecting ear is integrally arranged on both sides of the inner stop fork plate. The anti-wear slide cylinder is fixedly connected to the inside of the extended connecting ear. There are two guide rollers, and the two guide rollers are rotatably connected between the two inner stop fork plates.

[0008] Preferably, the pressure valve opening and closing structure includes a bidirectional spiral threaded barrel, a toggle handle, a clamping hole and a threaded column. The number of the bidirectional spiral threaded barrels is two, and the two bidirectional spiral threaded barrels are rotatably connected to the top of the base through bearings. The toggle handle is fixedly sleeved on the surface of the bidirectional spiral threaded barrel, and the clamping hole is opened on both sides of the bottom end of the toggle handle. The threaded column is respectively threadedly connected to the two ends of the two bidirectional spiral threaded barrels, and the surface of the threaded column is slidably connected to the inner wall of the anti-wear sliding barrel.

[0009] Preferably, the pressure valve opening and closing structure also includes a connecting cross column, a connecting shaft cylinder and a constant pressure block. The number of the connecting cross columns is two, and the two connecting cross columns are respectively fixedly connected between every two threaded columns at the same end. The connecting shaft cylinder is fixedly inserted in the middle of the connecting cross column. The constant pressure block is fixedly connected to the inside of the connecting shaft cylinder, and an air duct is opened through the inside of the constant pressure block.

[0010] Preferably, the locking valve mechanism includes a guide filling seat, a guide groove and a connecting pin, the guide filling seat is fixedly sleeved on the surface of the connecting shaft cylinder, the guide groove is opened on one side of the guide filling seat, and the number of the guide grooves is three, and the connecting pin is fixedly inserted into the surface of the guide filling seat.

[0011] Preferably, the valve locking mechanism also includes a valve locking block, a guide inclined hole, an anti-slip strip, an anti-slip pad, an adapter ring and a toggle pin, the valve locking block is slidably connected to the inside of the three guide grooves respectively, the guide inclined hole penetrates and is opened on the surface of the valve locking block, the anti-slip strip is integrally arranged on both sides of the valve locking block, and the surface of the anti-slip strip is slidably connected to the inner wall of the guide groove, the anti-slip pad is fixedly connected to the outer surface of the valve locking block, the adapter ring is rotatably connected to the surface of the connecting shaft cylinder through a bearing, and the surface of the adapter ring is slidably connected to the surface of the valve locking block, the toggle pin is fixedly inserted on one side of the valve locking block, and the surface of the toggle pin is slidably connected to the surface of the guide inclined hole.

[0012] Preferably, the pressing piece blocking mechanism includes a packaging positioning disk, an annular groove, a locking groove and a limiting waist hole. The packaging positioning disk is fixedly connected to one side of the guide filling seat by a connecting pin, and the inner wall of the packaging positioning disk is slidingly connected to the surface of the adapter ring. The annular groove is opened on the surface of the packaging positioning disk, the locking groove is opened on the surface of the packaging positioning disk away from the adapter ring, and the limiting waist hole passes through the surface of the packaging positioning disk.

[0013] Preferably, the sheet pressing and blocking mechanism also includes a rotating ring, an extension block and a sheet pressing roller, the rotating ring is rotatably connected to the inner wall of the ring groove, the extension block is integrally arranged on the surface of the rotating ring, the sheet pressing roller is rotatably connected to the inside of the extension block, and the number of the extension blocks is three.

[0014] Preferably, the locking valve opening and closing mechanism includes a toggle plate, an anti-slip sleeve, a connecting column, a locking mounting hole, a spring piece, a closing piece and a filling rubber block. The toggle plate is rotatably connected to the surface of the connecting shaft cylinder through a bearing, and the toggle plate is fixedly connected to the adapter ring through the connecting column, and the surface of the connecting column is slidably connected to the inner wall of the limiting waist hole, the anti-slip sleeve is fixedly sleeved on the surface of the toggle plate, the locking mounting hole is penetrated and opened on the surface of the toggle plate, the spring piece is integrally arranged on the inner wall of the locking mounting hole, and the surface of the free end of the spring piece is integrally provided with a hemispherical clamping head, and the hemispherical clamping head is clamped with the locking groove, the closing piece is fixedly connected to the inner wall of the locking mounting hole, and the filling rubber block is movably installed between the closing piece and the spring piece.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The valve welding tooling, through the set supporting positioning mechanism, valve pressure opening and closing structure, valve locking mechanism, pressure piece blocking mechanism and valve locking opening and closing mechanism, can ensure the fixation of the valve during use, and can also protect the input port and output port of the valve, preventing molten metal from easily falling into the valve during welding.

[0016] 2. The valve welding tooling, through the arranged base, storage groove, buffer pad, bolt foot ring, storage cylinder, positioning slide, extrusion spring, inner stop fork plate, positioning groove, extended connecting ear, anti-wear slide cylinder, guide roller and installation column, can quickly position the valve when in use, ensure that the inner side of the flange is blocked and limited by the inner stop fork plate during welding, and facilitate the guidance of the guide roller when taking and placing the valve, thereby reducing the bump damage to the valve surface.

[0017] 3. The valve welding tooling, through the bidirectional spiral threaded barrel, toggle handle, clamping hole, threaded column, connecting cross column, connecting shaft barrel and constant pressure block, can force the toggle handle to be operated by both hands to open and close the connecting cross column during use, thus forming a fool-proof design, avoiding the user from taking and placing the valve while holding the welding gun, and improving safety.

[0018] 4. The valve welding tooling, through the set guide filling seat, guide groove, connecting pin, locking valve block, guide inclined hole, anti-slip strip, anti-slip pad, adapter ring and toggle pin, can form support inside the valve at both ends through the locking valve block when in use, so as to avoid the movement of the valve during welding and ensure the stability of the valve during welding.

[0019] 5. The valve welding tooling, through the set packaging positioning plate, ring groove, positioning groove, limiting waist hole, swivel, extension block and pressing roller, can use the packaging positioning plate to block the valve during use to prevent the molten metal from flowing into the valve, and through the pressing roller, squeeze the outer side of the flange to ensure the stability of the flange before welding.

[0020] 6. The valve welding fixture, through the set toggle plate, anti-slip sleeve, connecting column, card installation hole, spring piece, closing piece and filling rubber block, can ensure that the toggle plate is turned on the outside to control the extension and retraction of the lock valve block, ensuring that the valve can be quickly locked and unlocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the valve of the present invention when it is fixed; Figure 3 This is a cross-sectional view of the valve of the present invention when it is fixed; Figure 4 It is a schematic diagram of the explosion structure of the present invention; Figure 5 It is a schematic diagram of the internal explosion structure of the support positioning mechanism and the pressure valve opening and closing structure of the present invention; Figure 6 It is a structural schematic diagram of the position of the dial of the present invention; Figure 7 This is a schematic diagram of the structure of the guide filling seat of the present invention; Figure 8 It is a schematic diagram of the explosion structure at the position of the valve locking mechanism and the pressing piece plugging mechanism of the present invention; Figure 9 It is a side view of the explosion structure at the position of the valve locking mechanism and the pressing piece plugging mechanism of the present invention; Figure 10 This is a schematic diagram of the internal explosion structure of the lock valve opening and closing mechanism of the present invention; Figure 11 It is a schematic diagram of the explosion structure at the position of the adapter ring of the present invention.

[0022] In the figure: 101, base; 102, storage groove; 103, buffer pad; 104, bolt ankle ring; 105, storage cylinder; 106, positioning sliding head; 107, extrusion spring; 108, inner retaining fork plate; 109, positioning groove; 110, extended connecting ear; 111, anti-abrasion sliding cylinder; 112, guide roller; 113, mounting post; 201, bidirectional spiral threaded cylinder; 202, turning handle; 203, clamping hole; 204, threaded post; 205, connecting cross post; 206, connecting shaft cylinder; 207, constant pressure block; 301, guiding filling seat; 302, guiding groove; 303, connecting pin; 304, locking valve block; 305, guiding inclined hole; 306, anti-disengagement strip; 307, anti-slip pad; 308, adapter ring; 309, turning pin; 401, encapsulation positioning disc; 402, annular groove; 403, clamping position groove; 404, limiting waist hole; 405, rotating ring; 406, extended block; 407, pressing roller; 501, turning disc; 502, anti-slip sleeve; 503, connecting post; 504, clamping position mounting hole; 505, elastic piece; 506, sealing piece; 507, filling rubber block. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-11 , a valve welding tooling, comprising: a support positioning mechanism, a valve pressing opening and closing structure is arranged inside the support positioning mechanism, a valve locking mechanism is installed on the surface of the opening and closing locking structure, a pressing piece plugging mechanism is arranged on one side of the valve locking mechanism, and a valve locking opening and closing mechanism is arranged on one side of the pressing piece plugging mechanism. By providing the support positioning mechanism, the valve pressing opening and closing structure, the valve locking mechanism, the pressing piece plugging mechanism and the valve locking opening and closing mechanism, it can ensure the fixation of the valve during use, and at the same time, it can protect the input port and output port of the valve, avoiding the molten metal liquid from easily falling into the valve during welding.

[0025] Among them; the supporting positioning mechanism includes a base 101, a storage groove 102, a buffer pad 103, a bolt foot ring 104, a storage tube 105, a positioning slide 106 and an extrusion spring 107. The storage grooves 102 are respectively arranged on both sides of the base 101, the buffer pad 103 is fixedly connected to the upper surface of the base 101, the bolt foot rings 104 are respectively integrally arranged at the four corners of the base 101, the storage tube 105 is fixedly inserted into the inner wall of the storage groove 102, the positioning slide 106 is slidably connected to the inside of the storage tube 105, the extrusion spring 107 is fixedly connected to one end of the positioning slide 106, and the extrusion spring 107 is located inside the storage tube 105.

[0026] Among them; the supporting positioning mechanism also includes an inner fork plate 108, a positioning groove 109, an extended connecting ear 110, an anti-wear slide 111, a guide roller 112 and a mounting column 113. The inner fork plate 108 is fixedly connected to both sides of the base 101 through the mounting column 113. The positioning groove 109 is opened on the top of the inner fork plate 108. The extended connecting ear 110 is integrally arranged on both sides of the inner fork plate 108. The anti-wear slide 111 is fixedly connected to the inside of the extended connecting ear 110. There are two guide rollers 112, and the two guide rollers 112 are rotatably connected to the two guide rollers 112. Between the inner baffle fork plate 108, the base 101, storage groove 102, buffer pad 103, bolt foot ring 104, storage tube 105, positioning slide 106, extrusion spring 107, inner baffle fork plate 108, positioning groove 109, extended connecting ear 110, anti-wear slide tube 111, guide roller 112 and installation column 113 are arranged, so that the valve can be quickly positioned when in use, ensuring that the inner side of the flange is blocked and limited by the inner baffle fork plate 108 during welding, and facilitating the guidance of the guide roller 112 when taking and placing the valve, thereby reducing bumps and damage to the valve surface.

[0027] Among them; the pressure valve opening and closing structure includes a bidirectional spiral threaded barrel 201, a toggle handle 202, a clamping hole 203 and a threaded column 204. There are two bidirectional spiral threaded barrels 201, and the two bidirectional spiral threaded barrels 201 are rotatably connected to the top of the base 101 through bearings. The toggle handle 202 is fixedly sleeved on the surface of the bidirectional spiral threaded barrel 201. The clamping hole 203 is opened on both sides of the bottom end of the toggle handle 202. The threaded column 204 is respectively threadedly connected to the two ends of the two bidirectional spiral threaded barrels 201, and the surface of the threaded column 204 is slidably connected to the inner wall of the anti-wear sliding barrel 111.

[0028] Among them; the pressure valve opening and closing structure also includes a connecting cross column 205, a connecting shaft cylinder 206 and a constant pressure block 207. The number of the connecting cross columns 205 is two, and the two connecting cross columns 205 are respectively fixedly connected between every two threaded columns 204 at the same end, the connecting shaft cylinder 206 is fixedly inserted in the middle of the connecting cross column 205, the constant pressure block 207 is fixedly connected to the inside of the connecting shaft cylinder 206, and an air duct is opened through the inside of the constant pressure block 207. Through the bidirectional spiral threaded cylinder 201, the toggle handle 202, the clamping hole 203, the threaded column 204, the connecting cross column 205, the connecting shaft cylinder 206 and the constant pressure block 207, the connecting cross column 205 can be opened and closed by forcing the toggle handle 202 to be operated by both hands during use, thereby forming a fool-proof design, avoiding the user from taking and placing the valve when holding the welding gun, and improving safety.

[0029] Among them; the locking valve mechanism includes a guide filling seat 301, a guide groove 302 and a connecting pin 303, the guide filling seat 301 is fixedly sleeved on the surface of the connecting shaft cylinder 206, the guide groove 302 is opened on one side of the guide filling seat 301, and the number of the guide grooves 302 is three, and the connecting pin 303 is fixedly inserted into the surface of the guide filling seat 301.

[0030] Among them; the valve locking mechanism also includes a valve locking block 304, a guide inclined hole 305, an anti-slip strip 306, an anti-slip pad 307, an adapter ring 308 and a toggle pin 309, the valve locking block 304 is slidably connected to the inside of the three guide grooves 302, the guide inclined hole 305 runs through the surface of the valve locking block 304, the anti-slip strip 306 is integrally arranged on both sides of the valve locking block 304, and the surface of the anti-slip strip 306 is slidably connected to the inner wall of the guide groove 302, the anti-slip pad 307 is fixedly connected to the outer surface of the valve locking block 304, and the adapter ring 308 is rotatably connected to the surface of the connecting shaft cylinder 206 through a bearing The surface of the adapter ring 308 is slidably connected to the surface of the lock valve block 304, the toggle pin 309 is fixedly inserted on one side of the lock valve block 304, and the surface of the toggle pin 309 is slidably connected to the surface of the guide inclined hole 305. Through the set guide filling seat 301, guide groove 302, connecting pin 303, lock valve block 304, guide inclined hole 305, anti-slip strip 306, anti-slip pad 307, adapter ring 308, toggle pin 309, a support can be formed inside the two ends of the valve through the lock valve block 304 when in use, so as to avoid the movement of the valve during welding and ensure the stability of the valve during welding.

[0031] Among them; the pressing piece blocking mechanism includes a packaging positioning disk 401, an annular groove 402, a locking groove 403 and a limiting waist hole 404. The packaging positioning disk 401 is fixedly connected to one side of the guide filling seat 301 through a connecting pin 303, and the inner wall of the packaging positioning disk 401 is slidingly connected to the surface of the adapter ring 308. The annular groove 402 is opened on the surface of the packaging positioning disk 401, the locking groove 403 is opened on the surface of the packaging positioning disk 401 away from the adapter ring 308, and the limiting waist hole 404 runs through the surface of the packaging positioning disk 401.

[0032] Among them, the pressing and blocking mechanism also includes a swivel ring 405, an extension block 406 and a pressing roller 407. The swivel ring 405 is rotatably connected to the inner wall of the annular groove 402, the extension block 406 is integrally arranged on the surface of the swivel ring 405, and the pressing roller 407 is rotatably connected to the inside of the extension block 406, and the number of the extension blocks 406 is three. Through the set packaging positioning plate 401, annular groove 402, positioning groove 403, limiting waist hole 404, swivel ring 405, extension block 406 and pressing roller 407, the packaging positioning plate 401 can be used to block the valve during use to prevent molten metal from flowing into the valve, and the pressing roller 407 can be used to squeeze the outer side of the flange to ensure the stability of the flange before welding.

[0033] The valve lock opening and closing mechanism includes a toggle plate 501, an anti-slip sleeve 502, a connecting column 503, a positioning installation hole 504, a spring piece 505, a sealing piece 506 and a filling rubber block 507. The toggle plate 501 is rotatably connected to the surface of the connecting shaft cylinder 206 through a bearing, and the toggle plate 501 is fixedly connected to the adapter ring 308 through the connecting column 503, and the surface of the connecting column 503 is slidably connected to the inner wall of the limiting waist hole 404, the anti-slip sleeve 502 is fixedly sleeved on the surface of the toggle plate 501, the positioning installation hole 504 is opened through the surface of the toggle plate 501, and the spring piece 505 is integrally arranged on the surface of the toggle plate 501. The inner wall of the positioning hole 504 and the surface of the free end of the spring piece 505 are integrally provided with a hemispherical clamping head, and the hemispherical clamping head is clamped with the positioning groove 403, the closing piece 506 is fixedly connected to the inner wall of the positioning hole 504, and the filling rubber block 507 is movably installed between the closing piece 506 and the spring piece 505. Through the set toggle plate 501, anti-slip sleeve 502, connecting column 503, positioning hole 504, spring piece 505, closing piece 506 and filling rubber block 507, it is possible to ensure that the toggle plate 501 is toggled on the outside to control the extension and retraction of the lock valve block 304, so as to ensure that the valve can be quickly locked and unlocked.

[0034] Working principle: During use, hold the two toggle handles 202 with both hands respectively, and then simultaneously toggle them upward. When toggling, the toggle handle 202 drives the bidirectional spiral threaded cylinder 201 to rotate. When the bidirectional spiral threaded cylinder 201 rotates, it drives the threaded posts 204 to rotate, causing the four threaded posts 204 to move outward, thereby driving the two connecting crossbars 205 to move outward, expanding the space above the base 101; Then place the valve on the surface of the buffer pad 103, and make the input end and output end of the valve respectively rest on the two positioning grooves 109. Then slip the flange over the input end and output end of the valve. At this time, one side of the flange is exactly limited by the inner retaining fork plate 108. Then hold the two toggle handles 202 with both hands respectively, and then simultaneously toggle them downward. When toggling, the toggle handle 202 drives the bidirectional spiral threaded cylinder 201 to rotate in the reverse direction. When the bidirectional spiral threaded cylinder 201 rotates, it drives the threaded posts 204 to rotate, causing the four threaded posts 204 to move inward, thereby driving the two connecting crossbars 205 to move inward, causing the two guide filling seats 301 to be inserted into the input end and output end of the valve respectively, and causing the pressing roller 407 to squeeze the outside of the flange, fixing the flange. At the same time, the connecting crossbar 205 is received into the receiving groove 102 and is positioned and clamped by the positioning slider 106; Then toggle the anti-slip sleeve 502 to make the toggle disc 501 rotate. When the toggle disc 501 rotates, it drives the adapter ring 308 to rotate through the connecting column 503. When the adapter ring 308 rotates, it squeezes the guide inclined hole 305 through the toggle pin 309, causing the valve locking block 304 to slide outward, so that the valve locking block 304 presses and centers the inner wall of the valve. After the toggle disc 501 rotates to the specified position, the hemispherical chuck on the surface of the elastic piece 505 is clamped into the corresponding clamping groove 403, preventing the toggle disc 501 from being easily disturbed, thereby realizing the positioning of the valve; During welding, weld along the gap between the valve and the flange on the outside. When welding reaches the side of the pressing roller 407, rotate the toggle ring 405 to expose the weld seam, and then continue welding. During the whole welding process, the input end and output end of the valve are blocked and sealed by the encapsulation positioning disc 401.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve welding tooling, characterized in that, include: A support and positioning mechanism, wherein a pressure valve opening and closing structure is arranged inside the support and positioning mechanism, a locking valve mechanism is installed on the surface of the opening and closing locking structure, a pressing plate plugging mechanism is arranged on one side of the locking valve mechanism, and a locking valve opening and closing mechanism is arranged on one side of the pressing plate plugging mechanism.

2. The valve welding tooling according to claim 1, wherein, The supporting and positioning mechanism comprises a base (101), a storage groove (102), a buffer pad (103), a bolt foot ring (104), a storage tube (105), a positioning slider (106) and a compression spring (107); the storage groove (102) is respectively arranged on both sides of the base (101); the buffer pad (103) is fixedly connected to the upper surface of the base (101); the bolt foot ring (104) is respectively arranged in an integrated manner at the four corners of the base (101); the storage tube (105) is fixedly plugged into the inner side wall of the storage groove (102); the positioning slider (106) is slidably connected to the inside of the storage tube (105); the compression spring (107) is fixedly connected to one end of the positioning slider (106), and the compression spring (107) is located inside the storage tube (105).

3. The valve welding tooling according to claim 2, characterized in that, The supporting and positioning mechanism further comprises an inner block fork plate (108), a positioning groove (109), an extended connecting ear (110), an anti-wear slide cylinder (111), a guide roller (112) and a mounting column (113); the inner block fork plate (108) is respectively fixedly connected to two sides of the base (101) via the mounting column (113); the positioning groove (109) is provided at the top of the inner block fork plate (108); the extended connecting ear (110) is integrally arranged on two sides of the inner block fork plate (108); the anti-wear slide cylinder (111) is fixedly connected inside the extended connecting ear (110); and there are two guide rollers (112), and the two guide rollers (112) are both rotatably connected between the two inner block fork plates (108).

4. A valve welding tooling according to claim 2, characterized in that, The pressure valve opening and closing structure comprises a bidirectional spiral threaded barrel (201), a toggle handle (202), a clamping hole (203) and a threaded column (204). The number of the bidirectional spiral threaded barrels (201) is two, and the two bidirectional spiral threaded barrels (201) are rotatably connected to the top of the base (101) via a bearing. The toggle handle (202) is fixedly sleeved on the surface of the bidirectional spiral threaded barrel (201), and the clamping hole (203) is provided on both sides of the bottom end of the toggle handle (202). The threaded column (204) is respectively threadedly connected to the two ends of the two bidirectional spiral threaded barrels (201), and the surface of the threaded column (204) is slidably connected to the inner wall of the anti-wear sliding barrel (111).

5. The valve welding tooling according to claim 4, characterized in that, The pressure valve opening and closing structure also includes a connecting cross column (205), a connecting shaft cylinder (206) and a constant pressure block (207), wherein the number of the connecting cross columns (205) is two, and the two connecting cross columns (205) are respectively fixedly connected between each two threaded columns (204) at the same end, the connecting shaft cylinder (206) is fixedly inserted in the middle of the connecting cross column (205), and the constant pressure block (207) is fixedly connected to the inside of the connecting shaft cylinder (206), and an air passage is opened through the inside of the constant pressure block (207).

6. The valve welding tooling according to claim 5, characterized in that, The valve locking mechanism comprises a guide filling seat (301), a guide groove (302) and a connecting pin (303); the guide filling seat (301) is fixedly sleeved on the surface of the connecting shaft cylinder (206); the guide groove (302) is provided on one side of the guide filling seat (301), and the number of the guide grooves (302) is three; and the connecting pin (303) is fixedly plugged into the surface of the guide filling seat (301).

7. A valve welding tooling according to claim 6, characterized in that, The valve locking mechanism further comprises a valve locking block (304), a guide inclined hole (305), an anti-slip strip (306), an anti-slip pad (307), an adapter ring (308) and a toggle pin (309); the valve locking block (304) is slidably connected to the inside of the three guide grooves (302), respectively; the guide inclined hole (305) penetrates and is provided on the surface of the valve locking block (304); the anti-slip strip (306) is integrally arranged on both sides of the valve locking block (304), and the surface of the anti-slip strip (306) The anti-skid pad (307) is slidably connected to the inner wall of the guide groove (302), the anti-skid pad (307) is fixedly connected to the outer surface of the valve lock block (304), the adapter ring (308) is rotatably connected to the surface of the connecting shaft cylinder (206) through a bearing, and the surface of the adapter ring (308) is slidably connected to the surface of the valve lock block (304), and the toggle pin (309) is fixedly plugged into one side of the valve lock block (304), and the surface of the toggle pin (309) is slidably connected to the surface of the guide inclined hole (305).

8. A valve welding tooling according to claim 7, characterized in that, The tablet-pressing and plugging mechanism comprises a packaging positioning disk (401), an annular groove (402), a positioning groove (403) and a limiting waist hole (404); the packaging positioning disk (401) is fixedly connected to one side of the guide filling seat (301) via a connecting pin (303); the inner wall of the packaging positioning disk (401) is slidably connected to the surface of the adapter ring (308); the annular groove (402) is provided on the surface of the packaging positioning disk (401); the positioning groove (403) is provided on the surface of the packaging positioning disk (401) away from the adapter ring (308); and the limiting waist hole (404) penetrates and is provided on the surface of the packaging positioning disk (401).

9. A valve welding tooling according to claim 8, characterized in that The tablet pressing and blocking mechanism further comprises a rotating ring (405), an extension block (406) and a tablet pressing roller (407); the rotating ring (405) is rotatably connected to the inner wall of the annular groove (402); the extension block (406) is integrally arranged on the surface of the rotating ring (405); the tablet pressing roller (407) is rotatably connected to the inside of the extension block (406); and the number of the extension blocks (406) is three.

10. A valve welding tooling according to claim 9, characterized in that, The lock valve opening and closing mechanism comprises a toggle plate (501), an anti-slip sleeve (502), a connecting column (503), a locking mounting hole (504), a spring sheet (505), a sealing sheet (506) and a filling rubber block (507); the toggle plate (501) is rotatably connected to the surface of the connecting shaft cylinder (206) via a bearing, and the toggle plate (501) is fixedly connected to the adapter ring (308) via the connecting column (503), and the surface of the connecting column (503) is slidably connected to the inner wall of the limiting waist hole (404); the anti-slip sleeve (502) The spring sheet (505) is integrally provided on the inner wall of the locking mounting hole (504), and a hemispherical clamping head is integrally provided on the surface of the free end of the spring sheet (505), and the hemispherical clamping head is clamped with the locking groove (403). The closing sheet (506) is fixedly connected to the inner wall of the locking mounting hole (504), and the filling rubber block (507) is movably installed between the closing sheet (506) and the spring sheet (505).

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