CN112693873A

CN112693873A - Processing and assembling device for large-caliber ultralow-temperature high-pressure metal sealing butterfly check valve

Info

Publication number: CN112693873A
Application number: CN202011603099.6A
Authority: CN
Inventors: 王建友; 葛红森; 薛明伟
Original assignee: Yancheng Ruide Petrochemical Machinery Co ltd
Current assignee: Yancheng Ruide Petrochemical Machinery Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-04-23

Abstract

The invention discloses a large-caliber ultralow-temperature high-pressure metal sealing butterfly check valve machining and assembling device which comprises a base, a first auxiliary fixing assembly, an infrared receiver, a U-shaped plate, a detection mechanism, a drawing box and a control box, wherein a first supporting plate is fixed on the upper side of the base, a connecting supporting plate is fixed on the upper side of the base, a first manipulator, a second manipulator, a third manipulator and a fourth manipulator are fixed on the lower side of the connecting supporting plate, a positioning shaft clamping framework is positioned on the upper side of a third electric telescopic rod, and a hinge clamping mechanism is fixed on the lower side of the third manipulator. The processing and assembling device for the large-caliber ultralow-temperature high-pressure metal sealing butterfly check valve has the advantages that the butterfly check valve shell can be limited and automatically fed, the butterfly check valve can be automatically assembled, the butterfly check valve shell can be accurately positioned and fixed, the butterfly check valve can be directly moved out of an assembling table after being assembled, and manual carrying is not needed.

Description

Processing and assembling device for large-caliber ultralow-temperature high-pressure metal sealing butterfly check valve

Technical Field

The invention relates to the technical field of check valves, in particular to a machining and assembling device for a large-caliber ultralow-temperature high-pressure metal sealing butterfly check valve.

Background

The butterfly check valve is a valve that automatically opens and closes a valve flap depending on the flow of a medium itself to prevent the backflow of the medium, and is also called a check valve, a reverse flow valve, and a back pressure valve. The check valve is an automatic valve and mainly used for preventing medium from flowing backwards, preventing the pump and a driving motor from reversing and discharging container medium. Check valves may also be used to provide make-up lines to auxiliary systems where the pressure may rise above the system pressure. The check valves may be mainly classified into swing check valves (rotating according to the center of gravity), lift check valves (moving along the axis), and butterfly check valves.

Most of the existing butterfly check valves are manually carried to an assembly table, the materials cannot be automatically loaded, manual assembly is needed, the assembly time is long due to manual assembly, the labor cost is high, the labor cost is increased, the materials cannot be directly unloaded after the assembly is completed, manual operation is needed, the butterfly check valves are inconvenient to use, and the practicability is low.

Disclosure of Invention

The invention aims to provide a machining and assembling device for a large-diameter ultralow-temperature high-pressure metal sealing butterfly check valve, and aims to solve the problems that most of the existing machining and assembling devices for butterfly check valves proposed in the background art are manually carried to an assembling table, cannot automatically carry out feeding, and need manual assembling, and when the butterfly check valves are manually assembled, the assembling time is long, the labor cost is high, the production cost is increased, and meanwhile, the butterfly check valves cannot be directly unloaded after being assembled, the butterfly check valves need manual operation, are inconvenient to use and are not high in practicability.

In order to achieve the purpose, the invention provides the following technical scheme: a processing and assembling device for a large-caliber ultralow-temperature high-pressure metal sealing butterfly check valve comprises a base, a first auxiliary fixing component, an infrared receiver, a U-shaped plate, a detection mechanism, a drawing box and a control box,

the automatic positioning device comprises a base, wherein a first supporting plate is fixed on the upper side of the base, a first conveying belt is fixed on the first supporting plate, a butterfly check valve shell is placed on the upper side of the first conveying belt, a connecting supporting plate is fixed on the upper side of the base, a limiting pushing assembly is fixed on the connecting supporting plate, a first manipulator, a second manipulator, a third manipulator and a fourth manipulator are fixed on the lower side of the connecting supporting plate, a rotating mechanism is fixed on the lower side of the first manipulator, a positioning shaft clamping framework and a third electric telescopic rod are fixed on the rotating mechanism, the positioning shaft clamping framework is located on the upper side of the third electric telescopic rod, a nut clamping mechanism is fixed at one end of the third electric telescopic rod, a spring part clamping mechanism is fixed on the lower side of the second manipulator, a hinge clamping mechanism is fixed on the lower side of the third manipulator, and a bolt rotating mechanism, the connecting support plate is positioned on the left side of the first feeding mechanism, the first feeding mechanism is positioned on the rear side of the second conveyor belt, and the connecting support plate is positioned on the rear side of the second feeding mechanism;

the first auxiliary fixing component is used for auxiliary fixing of the upper side of the shell of the butterfly check valve, the first auxiliary fixing component is fixed to the lower side of the connecting support plate, and an infrared emitter is embedded in the connecting support plate;

the infrared receiver is embedded on the rotating assembly, and a second auxiliary fixing assembly is fixed on the rotating assembly;

the U-shaped plate, U-shaped plate upside is fixed with the fifth manipulator, and the fifth manipulator downside is fixed with the centre gripping subassembly, and the U-shaped plate is located the detection mechanism front side simultaneously.

Preferably, spacing propelling movement subassembly includes spacing groove, first electric telescopic handle, first pneumatic cylinder, storage box, second electric telescopic handle and push pedal, the spacing inslot is fixed with first electric telescopic handle, and first electric telescopic handle upside is fixed with the antiskid ribbed tile, first pneumatic cylinder downside is fixed with the storage box through the piston rod, and is fixed with second electric telescopic handle on the storage box inner wall, and second electric telescopic handle one end is fixed with the push pedal simultaneously.

Preferably, first supplementary fixed subassembly includes second pneumatic cylinder, annular slider, annular spout and arc fixed plate, the second pneumatic cylinder downside is fixed with annular slider through the piston rod, and annular slider rotates and is connected with annular spout, and annular spout downside is fixed with arc fixed plate simultaneously.

Preferably, the supplementary fixed subassembly of second includes first fixed plate, fourth electric telescopic handle, limiting plate, slider and first slide, be fixed with fourth electric telescopic handle on the first fixed plate, and fourth electric telescopic handle one end is fixed with the limiting plate, and the limiting plate downside is fixed with the slider simultaneously, slider downside sliding connection has first slide.

Preferably, rotating assembly includes driving motor, bracing piece, second slide and second backup pad, the driving motor output rotates and is connected with the second backup pad, and the second slide has been seted up to second backup pad downside, and second slide sliding connection has the bracing piece simultaneously.

Preferably, the clamping assembly comprises a third supporting plate, a second fixing plate, a fifth electric telescopic rod and an L-shaped supporting plate, the second fixing plate is fixed to the lower side of the third supporting plate, the fifth electric telescopic rod is fixed to the second fixing plate, and the L-shaped supporting plate is fixed to one end of the fifth electric telescopic rod.

Preferably, a discharge hole is formed in the left side of the detection mechanism in a penetrating mode, and a third conveying belt penetrates through the detection mechanism and the U-shaped plate.

Preferably, the pull box is connected to the base in a sliding mode, and a display screen is fixed to the left end of the rear side of the base.

Preferably, the control box is fixed on the front side of the base.

Compared with the prior art, the invention has the beneficial effects that: the processing and assembling device for the large-caliber ultralow-temperature high-pressure metal sealing butterfly check valve,

(1) the butterfly check valve shell can be limited and automatically fed, the butterfly check valve can be automatically assembled, the butterfly check valve shell can be accurately positioned and fixed, the butterfly check valve can be directly moved out of an assembling table after being assembled, and the butterfly check valve has the advantages that manual carrying is not needed, the limiting plates are driven to move under the auxiliary action of the fourth electric telescopic rod, the three groups of limiting plates move relatively, the front side, the back side and the right side of the butterfly check valve shell are clamped and fixed, and the butterfly check valve shell is assisted and fixed through the arc-shaped fixing plate under the auxiliary action of the second hydraulic cylinder, so that the butterfly check valve shell can be prevented from moving, and the assembling quality of the butterfly check valve is finally influenced;

(2) the anti-skid device drives the anti-skid plate on the upper side of the first electric telescopic rod under the auxiliary action of the first electric telescopic rod; upward movement just so can carry on spacingly to butterfly check valve shell, drives the push pedal under second electric telescopic handle's additional function and removes right, and the push pedal promotes butterfly check valve shell and removes right to the supplementary fixed subassembly of second between, does not need artificial transport, is convenient for carry on the material loading.

(3) According to the butterfly check valve, the positioning shaft clamped on the positioning shaft clamping framework is driven to penetrate through the shell of the butterfly check valve under the auxiliary action of the first manipulator, the nut clamped on the nut clamping mechanism is used for fixing the positioning shaft in a threaded manner, the hinge can be placed on the valve clack by the hinge clamping mechanism on the lower side of the third manipulator, and finally the hinge is fixed through the bolt under the auxiliary action of the bolt rotating mechanism on the lower side of the fourth manipulator, so that the whole device does not need manual operation, automation is realized, the manual labor cost is reduced, and the production cost is reduced;

(4) according to the butterfly check valve assembling device, the L-shaped supporting plate is driven to move relatively under the auxiliary action of the fifth electric telescopic rod, so that the L-shaped supporting plate is operated to clamp the assembled butterfly check valve shell, the butterfly check valve shell is moved to the third conveying belt under the auxiliary action of the fifth manipulator without manual carrying, and the assembled butterfly check valve enters the detection mechanism, so that the detection mechanism can monitor the butterfly check valve shell, and the assembling quality of the butterfly check valve is ensured.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic diagram of the right-view structure of the present invention;

FIG. 4 is a rear view of the present invention;

fig. 5 is a schematic view of a distribution structure of the rotating mechanism on the first manipulator according to the present invention;

FIG. 6 is a schematic view of a clamping assembly according to the present invention.

In the figure: 1. a base, 2, a first supporting plate, 3, a first conveyor belt, 4, a butterfly check valve casing, 5, a limit pushing component, 501, a limit groove, 502, a first electric telescopic rod, 503, a first hydraulic cylinder, 504, a storage box, 505, a second electric telescopic rod, 506, a push plate, 6, a connecting supporting plate, 7, a first manipulator, 8, a rotating mechanism, 9, a positioning shaft clamping framework, 10, a third electric telescopic rod, 11, a nut clamping mechanism, 12, a second manipulator, 13, a spring part clamping mechanism, 14, a first auxiliary fixing component, 1401, a second hydraulic cylinder, 1402, a ring-shaped sliding block, 1403, a ring-shaped sliding groove, 1404, an arc-shaped fixing plate, 15, a second auxiliary fixing component, 1501, a first fixing plate, 1502, a fourth electric telescopic rod, 1503, a limit plate, 1504, a sliding block, a telescopic rod, a first sliding way, 16, an infrared emitter, 17, and an infrared receiver, 18. rotating assembly, 1801, driving motor, 1802, the bracing piece, 1803, the second slide, 1804, the second backup pad, 19, the third manipulator, 20, hinge fixture, 21, the fourth manipulator, 22, bolt rotary mechanism, 23, first feed mechanism, 24, second feed mechanism, 25, the second conveyer belt, 26, the U-shaped board, 27, the fifth manipulator, 28, centre gripping subassembly, 2801, the third backup pad, 2802, the second fixed plate, 2803, the fifth electric telescopic link, 2804, L shape backup pad, 29, detection mechanism, 30, discharge gate, 31, the third conveyer belt, 32, display screen, 33, the pull box, 34, control box.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a large-caliber ultralow-temperature high-pressure metal sealing butterfly check valve machining and assembling device is disclosed, as shown in figures 1 and 3, a first support plate 2 is fixed on the upper side of a base 1, a first conveyor belt 3 is fixed on the first support plate 2, a butterfly check valve shell 4 is placed on the upper side of the first conveyor belt 3, a connecting support plate 6 is fixed on the upper side of the base 1, a limiting and pushing assembly 5 is fixed on the connecting support plate 6, the limiting and pushing assembly 5 comprises a limiting groove 501, a first electric telescopic rod 502, a first hydraulic cylinder 503, a storage box 504, a second electric telescopic rod 505 and a push plate 506, the first electric telescopic rod 502 is fixed in the limiting groove 501, the anti-skid plate is fixed on the upper side of the first electric telescopic rod 502, a storage box 504 is fixed on the lower side of the first hydraulic cylinder 503 through a piston rod, the second electric telescopic rod 505 is fixed on the inner wall of the storage box 504, and the, the drawing box 33 is connected to the base 1 in a sliding manner, a display screen 32 is fixed at the left end of the rear side of the base 1, a control box 34 is fixed at the front side of the base 1, an antiskid plate at the upper side of the first electric telescopic rod 502 is driven to move upwards under the auxiliary action of the first electric telescopic rod 502 in the limiting groove 501, so that the shell 4 of the butterfly check valve can be limited, the shell 4 of the butterfly check valve is prevented from sliding and entering the inside of an operation table to influence the assembling quality of other shells 4 of the butterfly check valve, the shell 4 of the butterfly check valve is driven to move to the left side of the rotating assembly 18 under the auxiliary action of the first conveyor belt 3, manual carrying is not needed, time and labor are saved, the storage box 504 is driven to move downwards under the auxiliary action of the first hydraulic cylinder 503, the storage box 504 moves downwards to drive the push plate 506 to move downwards, and the, thus, the butterfly check valve shell 4 can be moved between the second auxiliary fixing components 15 for later assembly, the drawing box 33 can be arranged for storing parts for later use, the assembly and detection mechanism 29 can be observed under the assistance of the display screen 32 for on-site observation by operators, the first manipulator 7, the second manipulator 12, the third manipulator 19 and the fourth manipulator 21 are fixed on the lower side of the connecting support plate 6, the rotating mechanism 8 is fixed on the lower side of the first manipulator 7, the positioning shaft clamping framework 9 and the third electric telescopic rod 10 are fixed on the rotating mechanism 8, the positioning shaft clamping framework 9 is positioned on the upper side of the third electric telescopic rod 10, the nut clamping mechanism 11 is fixed on one end of the third electric telescopic rod 10, the spring part clamping mechanism 13 is fixed on the lower side of the second manipulator 12, and the hinge clamping mechanism 20 is fixed on the lower side of the third manipulator 19, a bolt rotating mechanism 22 is fixed on the lower side of the fourth manipulator 21, the connecting support plate 6 is positioned on the left side of the first feeding mechanism 23, the first feeding mechanism 23 is positioned on the rear side of the second conveyor belt 25, and the connecting support plate 6 is positioned on the rear side of the second feeding mechanism 24;

as shown in fig. 1, 3 and 6, the first auxiliary fixing component 14 is used for auxiliary fixing of the upper side of the butterfly check valve housing 4, and the first auxiliary fixing component 14 is fixed at the lower side of the connecting support plate 6, and the connecting support plate 6 is embedded with the infrared emitter 16, the first auxiliary fixing component 14 includes a second hydraulic cylinder 1401, a ring-shaped slider 1402, a ring-shaped chute 1403 and an arc-shaped fixing plate 1404, the lower side of the second hydraulic cylinder 1401 is fixed with the ring-shaped slider 1402 through a piston rod, and the ring-shaped slider 1402 is rotatably connected with the ring-shaped chute 1403, and the lower side of the ring-shaped chute 1403 is fixed with the arc-shaped fixing plate 1404, the second auxiliary fixing component 15 includes a first fixing plate 1501, a fourth electric telescopic rod 1502, a limit plate 1503, a slider 1504 and a first slideway 1505, the fourth electric telescopic rod 1502 is fixed on the first fixing plate 1501, and the limit plate 1504 is fixed at one end of, slider 1504 downside sliding connection has first slide 1505, the auxiliary action of fourth electric telescopic handle 1502 drives the limiting plate 1503 to remove on first fixed plate 1501, three groups of limiting plates 1503 just can assist fixedly to butterfly check valve shell 4 like this, drive downside arc fixed plate 1404 downstream under the auxiliary action of second pneumatic cylinder 1401, last arc fixed plate 1404 is fixed to butterfly check valve shell 4 upside, butterfly check valve shell 4 just can avoid rocking when the equipment like this, influence the equipment quality at last, it rotates to drive upside butterfly check valve shell 4 under the auxiliary action of rotating assembly 18, arc fixed plate 1404 is rotatable under the auxiliary action of annular slider 1402 and annular chute 1403 like this, supplementary fixed quality can be ensured in the operation like this.

As shown in fig. 1, 2, 4, 5 and 6, the infrared receiver 17 is embedded on the rotating assembly 18, and a second auxiliary fixing assembly 15 is fixed on the rotating assembly 18, the rotating assembly 18 includes a driving motor 1801, a support rod 1802, a second slideway 1803 and a second support plate 1804, the output end of the driving motor 1801 is rotatably connected with a second support plate 1804, and the lower side of the second support plate 1804 is provided with the second slideway 1803, and the second slideway 1803 is slidably connected with the support rod 1802, and the second support plate 1804 is driven to rotate under the assistance of the driving motor 1801, the second support plate 1804 rotates to rotate the butterfly check valve housing 4 on the second support plate 1804, the support rod 1802 can play a role of auxiliary support, the upper side of the U-shaped plate 26 is fixed with a fifth manipulator 27, and the lower side of the fifth manipulator 27 is fixed with a clamping assembly 28, and the U-shaped plate 26 is located at the front side of the detecting mechanism 29, the clamping assembly 28 comprises a third support plate 2801, a second fixing plate 2802, a fifth electric telescopic rod 2803 and an L-shaped support plate 2804, the second fixing plate 2802 is fixed on the lower side of the third support plate 2801, the fifth electric telescopic rod 2803 is fixed on the second fixing plate 2802, an L-shaped support plate 2804 is fixed on one end of the fifth electric telescopic rod 2803, a discharge hole 30 is arranged on the left side of the detection mechanism 29, a third conveyor belt 31 is arranged in the detection mechanism 29 and the U-shaped plate 26, the clamping assembly 28 is driven to move to the assembled butterfly check valve housing 4 under the auxiliary action of a fifth mechanical arm 27, the L-shaped support plate 2804 is driven to move relatively under the auxiliary action of the fifth electric telescopic rod 2803, finally, the butterfly check valve housing 4 is clamped by the L-shaped support plate 2804, the butterfly check valve housing 4 is prevented from falling off by the L-shaped support plate 2804, the assembled butterfly check valve housing 4 is moved to the third conveyor belt 31 under the auxiliary action of the fifth mechanical arm 27, the butterfly check valve is moved into the detection mechanism 29 under the assistance of the third conveyor belt 31, is detected under the assistance of the detection mechanism 29, and is discharged through the discharge port 30 when the assembled butterfly check valve is unqualified, so that the butterfly check valve is convenient for a worker to handle.

The working principle is as follows: when the large-caliber ultralow-temperature high-pressure metal sealing butterfly check valve machining and assembling device is used, an external power supply is switched on, the model of an infrared emitter 15 is IR333-A, the model of an infrared receiver 16 is LF0038Q, a butterfly check valve shell 4 is moved to a required position on the right side under the auxiliary action of a first conveyor belt 3 on the upper side of a first support plate 2 on a base 1, an upper antiskid plate is driven to move upwards under the auxiliary action of a first electric telescopic rod 502 in a limiting groove 501, finally, the butterfly check valve shell 4 is limited, a storage box 504 is driven to move downwards to a required position under the auxiliary action of a first hydraulic cylinder 503 on a connecting support plate 6, a push plate 506 is driven to move rightwards under the auxiliary action of a second electric telescopic rod 505 in the storage box 504, so that the butterfly check valve shell 4 can be pushed to move rightwards and finally, the butterfly check valve shell moves between second auxiliary fixing, the infrared emitter 16 and the infrared receiver 17 are accurately positioned under the auxiliary action of the infrared emitter 16 and the infrared receiver 17, the slider 1504 at the lower side of the limit plate 1503 of the fourth electric telescopic rod 1502 on the first fixing plate 1501 slides in the first slideway 1505, the limit plate 1503 relatively carries out the final fixing on the butterfly check valve shell 4, the circular slider 1402 and the arc-shaped fixing plate 1404 at the lower side of the circular chute 1403 are driven to move downwards under the auxiliary action of the second hydraulic cylinder 1401, so that the arc-shaped fixing plate 1404 fixes the upper side of the butterfly check valve shell 4, the positioning shaft clamping framework 9 and the nut clamping mechanism 11 on the third electric telescopic rod 10 clamp and fix the nut and the positioning shaft on the second feeding mechanism 24 under the auxiliary action of the spring piece clamping mechanism 13, the spring piece is clamped under the auxiliary action of the first manipulator 7 and the rotating mechanism 8, and the positioning shaft penetrates through the butterfly check valve shell 4, In the valve flap piece and the spring piece on the spring piece clamping mechanism 13 at the lower side of the second mechanical arm 12, finally, a nut on the nut clamping mechanism 11 penetrates through two ends of the positioning shaft, the nut is rotated and fixed under the auxiliary action of the rotating mechanism 8, the second supporting plate 1804 is driven to rotate under the auxiliary action of the driving motor 1801, the supporting rod 1802 slides in the second slide rail 1803, the second supporting plate 1804 rotates to rotate the butterfly check valve shell 4 on the second supporting plate 1804 to the left side of the first feeding mechanism 23 at the right side, the hinge on the second conveying belt 25 is clamped under the action of the hinge clamping mechanism 20, the bolt on the first feeding mechanism 23 is clamped under the auxiliary action of the bolt rotating mechanism 22, finally, the hinge on the hinge clamping mechanism 20 at the lower side of the third mechanical arm 19 moves to the outer wall of the valve flap, and the bolt fixes the hinge and the valve flap under the auxiliary action of the bolt rotating mechanism 22 under the auxiliary action of the fourth mechanical arm 21, the assembly of the whole butterfly check valve is completed, the clamping assembly 28 is driven to move to the required position of the butterfly check valve shell 4 under the auxiliary action of the fifth mechanical arm 27 on the U-shaped plate 26, under the auxiliary action of a fifth electric telescopic rod 2803 on a second fixing plate 2802 below the third support plate 2801, the L-shaped support plate 2804 is driven to move relatively, and finally the butterfly check valve shell 4 is clamped by the L-shaped support plate 2804 and finally moved to the third conveyor belt 31, the assembled butterfly check valve is moved into the detection mechanism 29 with the aid of the third conveyor belt 31, after the detection mechanism 29 detects, unqualified butterfly check valve moves out through the discharge hole 30, the setting of display screen 32 can be observed when assembling and detecting, the operation is simple and convenient, the setting of pull box 33 can place spare parts, the practicality is increased, and what has not been described in detail in this specification belongs to the prior art known by the professional in the field.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for simplicity of description only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operative in a particular orientation, and are not to be considered limiting of the claimed invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a heavy-calibre ultra-low temperature high pressure metal seal butterfly check valve processing assembly device, includes base (1), first supplementary fixed subassembly (14), infrared receiver (17), U-shaped board (26), detection mechanism (29), pull box (33) and control box (34), its characterized in that:

the automatic feeding device comprises a base (1), wherein a first supporting plate (2) is fixed on the upper side of the base (1), a first conveying belt (3) is fixed on the first supporting plate (2), a butterfly check valve shell (4) is placed on the upper side of the first conveying belt (3), a connecting supporting plate (6) is fixed on the upper side of the base (1), a limiting pushing assembly (5) is fixed on the connecting supporting plate (6), a first manipulator (7), a second manipulator (12), a third manipulator (19) and a fourth manipulator (21) are fixed on the lower side of the connecting supporting plate (6), a rotating mechanism (8) is fixed on the lower side of the first manipulator (7), a positioning shaft clamping framework (9) and a third electric telescopic rod (10) are fixed on the rotating mechanism (8), the positioning shaft clamping framework (9) is located on the upper side of the third electric telescopic rod (10), and a nut clamping mechanism (11) is fixed on one end of the third electric telescopic rod (10), meanwhile, a spring piece clamping mechanism (13) is fixed on the lower side of the second manipulator (12), a hinge clamping mechanism (20) is fixed on the lower side of the third manipulator (19), a bolt rotating mechanism (22) is fixed on the lower side of the fourth manipulator (21), the connecting support plate (6) is located on the left side of the first feeding mechanism (23), the first feeding mechanism (23) is located on the rear side of the second conveying belt (25), and meanwhile, the connecting support plate (6) is located on the rear side of the second feeding mechanism (24);

the first auxiliary fixing component (14) is used for auxiliary fixing of the upper side of the butterfly check valve shell (4), the first auxiliary fixing component (14) is fixed to the lower side of the connecting support plate (6), and an infrared emitter (16) is embedded in the connecting support plate (6);

the infrared receiver (17), the said infrared receiver (17) inlays on the rotating assembly (18), and fixed with the second auxiliary fixed assembly (15) on the rotating assembly (18);

the device comprises a U-shaped plate (26), wherein a fifth manipulator (27) is fixed on the upper side of the U-shaped plate (26), a clamping assembly (28) is fixed on the lower side of the fifth manipulator (27), and the U-shaped plate (26) is located on the front side of a detection mechanism (29).

2. The processing and assembling device for the large-caliber ultralow-temperature high-pressure metal sealing butterfly check valve as claimed in claim 1, wherein: spacing propelling movement subassembly (5) are including spacing groove (501), first electric telescopic handle (502), first pneumatic cylinder (503), storage box (504), second electric telescopic handle (505) and push pedal (506), spacing groove (501) internal fixation has first electric telescopic handle (502), and first electric telescopic handle (502) upside is fixed with the antiskid ribbed tile, first pneumatic cylinder (503) downside is fixed with storage box (504) through the piston rod, and is fixed with second electric telescopic handle (505) on storage box (504) inner wall, and second electric telescopic handle (505) one end is fixed with push pedal (506) simultaneously.

3. The processing and assembling device for the large-caliber ultralow-temperature high-pressure metal sealing butterfly check valve as claimed in claim 1, wherein: the first auxiliary fixing component (14) comprises a second hydraulic cylinder (1401), an annular sliding block (1402), an annular sliding groove (1403) and an arc-shaped fixing plate (1404), wherein the lower side of the second hydraulic cylinder (1401) is fixed with the annular sliding block (1402) through a piston rod, the annular sliding block (1402) is rotatably connected with the annular sliding groove (1403), and meanwhile the lower side of the annular sliding groove (1403) is fixed with the arc-shaped fixing plate (1404).

4. The processing and assembling device for the large-caliber ultralow-temperature high-pressure metal sealing butterfly check valve as claimed in claim 1, wherein: the second auxiliary fixing assembly (15) comprises a first fixing plate (1501), a fourth electric telescopic rod (1502), a limiting plate (1503), a sliding block (1504) and a first slide way (1505), the fourth electric telescopic rod (1502) is fixed on the first fixing plate (1501), one end of the fourth electric telescopic rod (1502) is fixed with the limiting plate (1503), the sliding block (1504) is fixed on the lower side of the limiting plate (1503), and the first slide way (1505) is connected to the lower side of the sliding block (1504) in a sliding mode.

5. The processing and assembling device for the large-caliber ultralow-temperature high-pressure metal sealing butterfly check valve as claimed in claim 1, wherein: rotating assembly (18) include driving motor (1801), bracing piece (1802), second slide (1803) and second backup pad (1804), driving motor (1801) output rotates and is connected with second backup pad (1804), and second backup pad (1804) downside has seted up second slide (1803), and second slide (1803) sliding connection has bracing piece (1802) simultaneously.

6. The processing and assembling device for the large-caliber ultralow-temperature high-pressure metal sealing butterfly check valve as claimed in claim 1, wherein: the clamping assembly (28) comprises a third supporting plate (2801), a second fixing plate (2802), a fifth electric telescopic rod (2803) and an L-shaped supporting plate (2804), the second fixing plate (2802) is fixed to the lower side of the third supporting plate (2801), the fifth electric telescopic rod (2803) is fixed to the second fixing plate (2802), and meanwhile the L-shaped supporting plate (2804) is fixed to one end of the fifth electric telescopic rod (2803).

7. The processing and assembling device for the large-caliber ultralow-temperature high-pressure metal sealing butterfly check valve as claimed in claim 1, wherein: a discharge hole (30) penetrates through the left side of the detection mechanism (29), and a third conveyor belt (31) penetrates through the detection mechanism (29) and the U-shaped plate (26).

8. The processing and assembling device for the large-caliber ultralow-temperature high-pressure metal sealing butterfly check valve as claimed in claim 1, wherein: the drawing box (33) is connected to the base (1) in a sliding mode, and a display screen (32) is fixed to the left end of the rear side of the base (1).

9. The processing and assembling device for the large-caliber ultralow-temperature high-pressure metal sealing butterfly check valve as claimed in claim 1, wherein: the control box (34) is fixed on the front side of the base (1).