CN113427358A

CN113427358A - Machining device and technology for pneumatic butterfly valve production

Info

Publication number: CN113427358A
Application number: CN202110751315.XA
Authority: CN
Inventors: 金建淼; 周梅丽; 李智勇
Original assignee: Shanghai Samusen Valve Co ltd
Current assignee: Shanghai Samusen Valve Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2021-09-24

Abstract

The invention belongs to the field of pneumatic butterfly valves, in particular to a processing device and a processing technology for producing a pneumatic butterfly valve, aiming at the problems that after the valve body needs to be clamped by the existing device, the valve body needs to be polished, the device is replaced, the valve body is clamped and polished again until the outer wall, the inner wall and the flange hole are polished completely, a large amount of clamping equipment needs to be used, and a large amount of time is consumed for replacing the device, the invention proposes the following scheme, which comprises a cylinder, a valve body and a supporting plate, wherein the cylinder is positioned at one side of the supporting plate, the valve body is sleeved on the cylinder, the top and the bottom of the cylinder are both connected with a sliding plate in a sliding way, one side of the sliding plate, which is far away from the supporting plate, is provided with an outer clamping component for clamping the outer part of the valve body, the inner wall and the flange hole, in the invention, the device does not need to be replaced, one device can realize the function of polishing the outer wall, the inner wall and the flange hole of the valve body, the valve body is clamped for multiple times without replacing the equipment for multiple times, so that the working efficiency can be improved.

Description

Machining device and technology for pneumatic butterfly valve production

Technical Field

The invention relates to the technical field of pneumatic butterfly valves, in particular to a processing device and a processing technology for pneumatic butterfly valves.

Background

The pneumatic butterfly valve consists of a pneumatic actuator and a butterfly valve. The pneumatic butterfly valve is opened and closed by a circular butterfly plate rotating along with a valve rod to realize the pneumatic valve which starts to act, is mainly used as a cut-off valve, can also be designed to have the function of adjusting or adjusting a section valve, and is increasingly used on low-pressure large-caliber and medium-caliber pipelines. Classifying a pneumatic butterfly valve: stainless steel pneumatic butterfly valves, hard seal pneumatic butterfly valves, soft seal pneumatic butterfly valves, carbon steel pneumatic butterfly valves. The pneumatic butterfly valve has the main advantages of simple structure, small volume, light weight and low manufacturing cost, is particularly remarkable, is arranged in a high-altitude blind way, is controlled by a two-position five-way electromagnetic valve to be convenient to operate, and can also adjust flow media.

Pneumatic butterfly valve need polish the outer wall of valve body when production, the inner wall, the flange hole, make it accord with the standard, current device is when polishing, need press from both sides tight valve body after, polish it, the back of polishing, change the device, it presss from both sides tightly to the valve body to change the angle, polish again, until the outer wall, inner wall and flange hole are all polished and are accomplished, need use a large amount of clamping equipment, and will spend a large amount of time to change the device, it is time and energy consuming, so we propose a processingequipment and technology for pneumatic butterfly valve production, a problem for solving the aforesaid and mentioning.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a processing device and a processing technology for pneumatic butterfly valve production.

In order to achieve the purpose, the invention adopts the following technical scheme:

a processing device for production of a pneumatic butterfly valve comprises a cylinder, a valve body and a supporting plate, wherein the cylinder is positioned on one side of the supporting plate, the valve body is sleeved on the cylinder, sliding plates are connected to the top and the bottom of the cylinder in a sliding manner, an outer clamping assembly for clamping the outside of the valve body is arranged on one side, away from the supporting plate, of each sliding plate, a second electric push rod is fixedly connected to one side of the supporting plate, a piston rod of each second electric push rod penetrates through the supporting plate and is fixedly connected with one end of the cylinder, the inner wall of the cylinder is rotatably connected with a lead screw, a lead screw motor is fixedly connected to one side of the cylinder, an output shaft of the lead screw motor extends into the cylinder and is fixedly connected with one end of the lead screw, a thread block is sleeved on the lead screw and is slidably connected with the inner wall of the cylinder, and two control rods which are symmetrically arranged are fixedly connected to the inside of the thread block, the inner wall sliding connection of drum has first slip ring and second slip ring, the both ends of control lever slide respectively and run through the inside of first slip ring and second slip ring, be provided with on the second slip ring with control outer clamping component's control assembly, be provided with the interior clamping component who is used for pressing from both sides tight valve body inner wall on the first slip ring, a plurality of flange holes have been seted up to the inside of valve body, the valve rod hole has been seted up to the roof of valve body, the valve rod groove has been seted up to the bottom inner wall of valve body.

Preferably, outer clamping components include two second diaphragms of sliding connection in sliding plate one side, two the equal fixedly connected with fixed block in one side that the second diaphragm was kept away from each other, two the equal sliding connection in one end that the fixed block was kept away from each other has first diaphragm, two first electric putter that one side fixedly connected with symmetry set up of backup pad, first electric putter's output shaft runs through backup pad and sliding plate and fixedly connected with rectangle box, the one end of first diaphragm extend to the inside of rectangle box and with rectangle box sliding connection, two the equal fixedly connected with first montant in one side that first diaphragm is close to each other, two the outer cardboard of the equal fixedly connected with in one side that first montant is close to each other.

Preferably, interior clamping component is including rotating two first connecting plates of connection in first slip ring one side, two the one end that first connecting plate kept away from each other all rotates and is connected with the second montant, two the cardboard in drum and fixedly connected with is all slided to the one end that the second montant kept away from each other.

Preferably, the control assembly includes two second connecting rods of rotation connection in second slip ring one side, the mounting hole has all been seted up to the top and the bottom of drum, two the one end that the second connecting rod was kept away from each other all extends to in the mounting hole and the swivelling joint has the elevator, elevator and mounting hole sliding connection, two the one end that the elevator was kept away from each other all extends to the outside of mounting hole and with second diaphragm sliding connection.

Preferably, the two ends of the control rod are fixedly connected with a second limiting block and a first limiting block respectively.

Preferably, springs are fixedly connected between one side of the first transverse plates close to each other and the inner wall of one side of the rectangular boxes close to each other.

Preferably, the control rod is fixedly sleeved with a second pushing block and a first pushing block, the second pushing block is located between the first sliding ring and the threaded block, and the first pushing block is located between the threaded block and the second sliding ring.

A processing technology for producing a pneumatic butterfly valve comprises the following steps:

s1, sleeving the valve body on the cylinder, starting the lead screw motor to enable an output shaft of the lead screw motor to rotate in a positive rotation mode, enabling the output shaft of the lead screw motor to drive the lead screw to rotate, enabling the lead screw to drive the thread block to move transversely in a direction close to the first sliding ring, enabling the thread block to push the second pushing block to move transversely, enabling the second pushing block to move transversely and push the first sliding ring to move transversely, enabling the first sliding ring to drive the first connecting plate to rotate, enabling the first connecting plate to drive the two second vertical rods to be away from each other, enabling the second vertical rods to drive the two inner clamping plates to be away from each other, enabling the inner clamping plates to abut against the inner wall of the valve body, and fixing the valve body;

s2, a lead screw motor is turned off, a second electric push rod is started, a piston rod of the second electric push rod pushes a cylinder to move transversely, the cylinder drives a valve body to move transversely, the lifting block slides at the bottom of a second transverse plate, the second electric push rod is turned off when the valve body moves to one side of the bottom of an outer clamping plate, the outer wall, two sides and a flange hole of the valve body can be polished at the moment, and the second electric push rod is started again after polishing is completed to move the cylinder and the valve body to the original position;

s3, the screw motor is started again, so that the output shaft of the screw motor is reversed, the output shaft of the screw motor drives the screw rod to rotate, the screw rod drives the thread block to transversely move towards the direction close to the second sliding ring, the thread block drives the first pushing block to transversely move, the first pushing block pushes the second sliding ring to transversely move and drives the second limiting block to transversely move through the control rod, the second limiting block drives the first sliding ring to transversely move towards the direction close to the second sliding ring, the first sliding ring drives the first connecting plate to rotate, the first connecting plate drives the two second vertical rods to mutually approach, the second vertical rods drive the two inner clamping plates to mutually approach, and then the braking of the inner clamping plates to the valve body is relieved;

s4, the second sliding ring drives the second connecting rod to rotate, the second connecting rod drives the two lifting blocks to approach each other, the lifting blocks drive the two second transverse plates to approach each other, the second transverse plates drive the two fixing blocks to approach each other, the fixing blocks drive the two first transverse plates to approach each other, the first transverse plates extrude the spring and drive the two first vertical rods to approach each other, the first vertical rods drive the two outer clamping plates to approach each other and clamp the outer wall of the valve body, the lead screw motor is turned off, the first electric push rod is started, the piston rod of the first electric push rod drives the rectangular box to move transversely, the rectangular box drives the first transverse plates to move transversely, the first transverse plates slide on the fixing blocks at the moment, the first transverse plates drive the first vertical rods to move transversely, the first vertical rods drive the outer clamping plates to move transversely, the outer clamping plates drive the valve body to move transversely until the valve body moves to one side of the cylinder, and the first electric push rod is turned off at the moment, the inner wall of the valve body can begin to be polished.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the valve body is sleeved on the cylinder, the lead screw motor is started to enable the output shaft of the lead screw motor to rotate in a forward rotation mode, the output shaft of the lead screw motor drives the lead screw to rotate, the lead screw drives the thread block to move transversely in a direction close to the first sliding ring, the thread block pushes the second pushing block to move transversely, the second pushing block moves transversely and pushes the first sliding ring to move transversely, the first sliding ring drives the first connecting plate to rotate, the first connecting plate drives the two second vertical rods to be away from each other, the second vertical rods drive the two inner clamping plates to be away from each other, and then the inner clamping plates abut against the inner wall of the valve body to fix the valve body.

2. According to the invention, the screw motor is turned off, the second electric push rod is started, the piston rod of the second electric push rod pushes the cylinder to move transversely, the cylinder drives the valve body to move transversely, the lifting block slides at the bottom of the second transverse plate, the second electric push rod is turned off when the valve body moves to one side of the bottom of the outer clamping plate, the outer wall, two sides and the flange hole of the valve body can be polished at the moment, and after polishing is finished, the second electric push rod is started again to move the cylinder and the valve body to the original position.

3. According to the invention, the screw motor is started again to enable the output shaft of the screw motor to rotate reversely, the output shaft of the screw motor drives the screw rod to rotate, the screw rod drives the threaded block to move transversely in the direction close to the second sliding ring, the threaded block drives the first pushing block to move transversely, the first pushing block pushes the second sliding ring to move transversely and drives the second limiting block to move transversely through the control rod, the second limiting block drives the first sliding ring to move transversely in the direction close to the second sliding ring, the first sliding ring drives the first connecting plate to rotate, the first connecting plate drives the two second vertical rods to approach each other, the second vertical rods drive the two inner clamping plates to approach each other, and then the braking of the inner clamping plates to the valve body is relieved.

4. In the invention, a second sliding ring drives a second connecting rod to rotate, the second connecting rod drives two lifting blocks to approach each other, the lifting blocks drive two second transverse plates to approach each other, the second transverse plates drive two fixed blocks to approach each other, the fixed blocks drive two first transverse plates to approach each other, the first transverse plates extrude a spring and drive two first vertical rods to approach each other, the first vertical rods drive two outer clamping plates to approach each other and clamp the outer wall of a valve body, a lead screw motor is turned off, a first electric push rod is started, a piston rod of the first electric push rod drives a rectangular box to transversely move, the rectangular box drives the first transverse plates to transversely move, the first transverse plates slide on the fixed blocks, the first transverse plates drive the first vertical rods to transversely move, the first vertical rods drive the outer clamping plates to transversely move, the outer clamping plates drive the valve body to transversely move until the valve body moves to one side of a cylinder, the inner wall of the valve body can begin to be polished.

According to the invention, the functions of polishing the outer wall, the inner wall and the flange hole of the valve body can be realized by one device without replacing the device, the valve body is clamped for multiple times without replacing equipment for multiple times, so that the working efficiency can be improved, the fund required for purchasing the equipment is reduced, the production cost is reduced, the structure is simple, and the use is convenient.

Drawings

FIG. 1 is a schematic front view of a processing device for producing a pneumatic butterfly valve according to the present invention;

FIG. 2 is a front sectional view of the cylinder of the present invention;

FIG. 3 is a schematic front view of the valve body according to the present invention;

FIG. 4 is a three-dimensional view of a valve body according to the present invention;

FIG. 5 is a schematic sectional view of the rectangular box of the present invention;

FIG. 6 is a front view of the valve body of the present invention clamped by the outer clamping assembly;

fig. 7 is a front view of the valve body of the present invention clamped by the inner clamping assembly.

In the figure: 1. a cylinder; 2. a valve body; 3. an outer clamping plate; 4. a first vertical bar; 5. a first transverse plate; 6. a lifting block; 7. a fixed block; 8. a second transverse plate; 9. a rectangular box; 10. a sliding plate; 11. a support plate; 12. a first electric push rod; 13. a second electric push rod; 14. a lead screw motor; 15. a second vertical bar; 16. an inner clamping plate; 17. a first connecting plate; 18. a first slip ring; 19. a thread block; 20. a second connecting rod; 21. a second slip ring; 22. a control lever; 23. a screw rod; 24. a first stopper; 25. mounting holes; 26. a first pushing block; 27. a second pushing block; 28. a second limiting block; 29. a flange hole; 30. a valve stem bore; 31. a valve stem groove; 32. a spring.

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.

Example one

Referring to fig. 1-7, a processing device for pneumatic butterfly valve production, comprising a cylinder 1, a valve body 2 and a supporting plate 11, wherein the cylinder 1 is located at one side of the supporting plate 11, the valve body 2 is sleeved on the cylinder 1, the top and the bottom of the cylinder 1 are both slidably connected with a sliding plate 10, one side of the sliding plate 10 away from the supporting plate 11 is provided with an external clamping component for clamping the outside of the valve body 2, one side of the supporting plate 11 is fixedly connected with a second electric push rod 13, a piston rod of the second electric push rod 13 penetrates through the supporting plate 11 and is fixedly connected with one end of the cylinder 1, the inner wall of the cylinder 1 is rotatably connected with a lead screw 23, one side of the cylinder 1 is fixedly connected with a lead screw motor 14, an output shaft of the lead screw motor 14 extends into the cylinder 1 and is fixedly connected with one end of the lead screw 23, a thread block 19 is sleeved on the lead screw 23, the thread block 19 is slidably connected with the inner wall of the cylinder 1, two control levers 22 that fixedly connected with symmetry set up are run through to the inside of screw thread piece 19, the inner wall sliding connection of drum 1 has first slip ring 18 and second slip ring 21, the inside that runs through first slip ring 18 and second slip ring 21 is slided respectively at the both ends of control lever 22, be provided with on the second slip ring 21 with control outer clamping component's control assembly, be provided with the interior clamping component who is used for pressing from both sides tight 2 inner walls of valve body on the first slip ring 18, a plurality of flange holes 29 have been seted up to the inside of valve body 2, valve rod hole 30 has been seted up to the roof of valve body 2, valve rod groove 31 has been seted up to the bottom inner wall of valve body 2.

Example two

Referring to fig. 1-7, the invention provides a technical scheme, a processing device for producing a pneumatic butterfly valve, comprising a cylinder 1, a valve body 2 and a support plate 11, wherein the cylinder 1 is positioned at one side of the support plate 11, the valve body 2 is sleeved on the cylinder 1, the top and the bottom of the cylinder 1 are both connected with a sliding plate 10 in a sliding manner, one side of the sliding plate 10 far away from the support plate 11 is provided with an outer clamping component for clamping the outside of the valve body 2, the outer clamping component comprises two second transverse plates 8 connected to one side of the sliding plate 10 in a sliding manner, the sides of the two second transverse plates 8 far away from each other are both fixedly connected with fixed blocks 7, the ends of the two fixed blocks 7 far away from each other are both connected with a first transverse plate 5 in a sliding manner, one side of the support plate 11 is fixedly connected with two first electric push rods 12 which are symmetrically, used for controlling the lateral movement of the first transverse plate 5, further driving the valve body 2 to move laterally, when the valve body 2 moves to one side of the cylinder 1, the valve body 2 can be polished more conveniently, one end of the first transverse plate 5 extends to the inside of the rectangular box 9 and is connected with the rectangular box 9 in a sliding way, one side of the two first transverse plates 5 close to each other is fixedly connected with a first vertical rod 4, one side of the two first transverse plates 5 close to each other and the inner wall of one side of the two rectangular boxes 9 close to each other are fixedly connected with a spring 32, one side of the two first vertical rods 4 close to each other is fixedly connected with an outer clamping plate 3 for clamping the valve body 2 from the outside to polish the inside of the valve body 2, one side of the supporting plate 11 is fixedly connected with a second electric push rod 13, the piston rod of the second electric push rod 13 penetrates through the supporting plate 11 and is fixedly connected with one end of the cylinder 1, the inner wall of the cylinder 1 is rotatably connected with a lead screw 23, a lead screw motor 14 is fixedly connected to one side of the cylinder 1, an output shaft of the lead screw motor 14 extends into the cylinder 1 and is fixedly connected with one end of a lead screw 23, a thread block 19 is sleeved on the lead screw 23, the thread block 19 is slidably connected with the inner wall of the cylinder 1, two control rods 22 which are symmetrically arranged are fixedly connected in the thread block 19 in a penetrating manner, two ends of each control rod 22 are respectively and fixedly connected with a second limit block 28 and a first limit block 24, a second push block 27 and a first push block 26 are fixedly sleeved on each control rod 22, the second push block 27 is positioned between the first sliding ring 18 and the thread block 19, the first push block 26 is positioned between the thread block 19 and the second sliding ring 21, the inner wall of the cylinder 1 is slidably connected with the first sliding ring 18 and the second sliding ring 21, two ends of each control rod 22 are respectively and slidably penetrated through the interiors of the first sliding ring 18 and the second sliding ring 21, and a control assembly for controlling an external clamping assembly is arranged on the second sliding ring 21, the control component comprises two second connecting rods 20 which are rotatably connected to one side of a second sliding ring 21, mounting holes 25 are formed in the top and the bottom of the cylinder 1, the ends, far away from each other, of the two second connecting rods 20 extend into the mounting holes 25 and are rotatably connected with lifting blocks 6, the lifting blocks 6 are slidably connected with the mounting holes 25, the ends, far away from each other, of the two lifting blocks 6 extend to the outside of the mounting holes 25 and are slidably connected with a second transverse plate 8 for controlling the clamping of the outer clamping component without manual intervention, so that the workload of workers is reduced, an inner clamping component for clamping the inner wall of the valve body 2 is arranged on the first sliding ring 18, the inner clamping component comprises two first connecting plates 17 rotatably connected to one side of the first sliding ring 18, the ends, far away from each other, of the two first connecting plates 17 are rotatably connected with second vertical rods 15, the ends, far away from each second vertical rods 15 slidably penetrate through the cylinder 1 and are fixedly connected with inner clamping plates 16, and then make interior cardboard 16 support the inner wall of valve body 2, it is fixed with valve body 2, be used for from inside clamping valve body 2, and then the outer wall of the valve body of polishing that can be better, do not block, also need not change the device, it is tight again, a large amount of time has been practiced thrift, the work efficiency is improved, a plurality of flange holes 29 have been seted up to the inside of valve body 2, valve rod hole 30 has been seted up to the roof of valve body 2, valve rod groove 31 has been seted up to the bottom inner wall of valve body 2, do not need to change the device, a device alright realize polishing the valve body outer wall, the function in inner wall and flange hole, do not need to change equipment many times, press from both sides the valve body many times, and.

s1, sleeving the valve body 2 on the cylinder 1, starting the screw rod motor 14 to enable the output shaft of the screw rod motor 14 to rotate forward, enabling the output shaft of the screw rod motor 14 to drive the screw rod 23 to rotate, enabling the screw rod 23 to drive the thread block 19 to move transversely in a direction close to the first sliding ring 18, enabling the thread block 19 to push the second pushing block 27 to move transversely, enabling the second pushing block 27 to move transversely and push the first sliding ring 18 to move transversely, enabling the first sliding ring 18 to drive the first connecting plate 17 to rotate, enabling the first connecting plate 17 to drive the two second vertical rods 15 to be away from each other, enabling the two inner clamping plates 16 to be away from each other, enabling the inner clamping plates 16 to abut against the inner wall of the valve body 2, and fixing the valve body 2;

s2, the screw motor 14 is turned off, the second electric push rod 13 is started, the piston rod of the second electric push rod 13 pushes the cylinder 1 to move transversely, the cylinder 1 drives the valve body 2 to move transversely, the lifting block 6 slides at the bottom of the second transverse plate 8, when the valve body 2 moves to one side of the bottom of the outer clamping plate 3, the second electric push rod 13 is turned off, the outer wall, two sides and the flange hole 29 of the valve body 2 can be polished at the moment, and after polishing is completed, the second electric push rod 13 is started again to move the cylinder 1 and the valve body 2 to the original position;

s3, the lead screw motor 14 is started again, the output shaft of the lead screw motor 14 is enabled to rotate reversely, the output shaft of the lead screw motor 14 drives the lead screw 23 to rotate, the lead screw 23 drives the thread block 19 to move transversely in the direction close to the second sliding ring 21, the thread block 19 drives the first pushing block 26 to move transversely, the first pushing block 26 pushes the second sliding ring 21 to move transversely and drives the second limiting block 28 to move transversely through the control rod 22, the second limiting block 28 drives the first sliding ring 18 to move transversely in the direction close to the second sliding ring 21, the first sliding ring 18 drives the first connecting plate 17 to rotate, the first connecting plate 17 drives the two second vertical rods 15 to move close to each other, the second vertical rods 15 drive the two inner clamping plates 16 to move close to each other, and then the inner clamping plates 16 are relieved from braking the valve body 2;

s4, the second sliding ring 21 drives the second connecting rod 20 to rotate, the second connecting rod 20 drives two lifting blocks 6 to approach each other, the lifting blocks 6 drive two second transverse plates 8 to approach each other, the second transverse plates 8 drive two fixing blocks 7 to approach each other, the fixing blocks 7 drive two first transverse plates 5 to approach each other, the first transverse plates 5 extrude the springs 32 and drive two first vertical rods 4 to approach each other, the first vertical rods 4 drive two outer clamping plates 3 to approach each other and clamp the outer wall of the valve body 2, the lead screw motor 14 is turned off, the first electric push rod 12 is turned on, the piston rod of the first electric push rod 12 drives the rectangular box 9 to move transversely, the rectangular box 9 drives the first transverse plates 5 to move transversely, at the moment, the first transverse plates 5 slide on the fixing blocks 7, the first transverse plates 5 drive the first vertical rods 4 to move transversely, the first vertical rods 4 drive the outer clamping plates 3 to move transversely, the outer clamping plates 3, until the valve body 2 moves to one side of the cylinder 1, the first electric push rod 12 is closed, and the inner wall of the valve body 2 can be ground.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a processingequipment for pneumatic butterfly valve production, includes drum (1), valve body (2) and backup pad (11), its characterized in that, drum (1) is located one side of backup pad (11), valve body (2) cover is established on drum (1), the equal sliding connection in top and the bottom of drum (1) has sliding plate (10), one side that backup pad (11) were kept away from in sliding plate (10) is provided with and is used for pressing from both sides the outside outer clamping component of tight valve body (2), one side fixedly connected with second electric putter (13) of backup pad (11), the piston rod of second electric putter (13) run through backup pad (11) and with the one end fixed connection of drum (1), the inner wall of drum (1) rotates and is connected with lead screw (23), one side fixedly connected with lead screw motor (14) of drum (1), the output shaft of lead screw motor (14) extend to the inside of drum (1) and with the one end fixed connection of lead screw (23) Fixedly connected, a thread block (19) is sleeved on the screw rod (23) in a threaded manner, the thread block (19) is connected with the inner wall of the cylinder (1) in a sliding manner, two control rods (22) which are symmetrically arranged are fixedly connected in the thread block (19) in a penetrating way, the inner wall of the cylinder (1) is connected with a first sliding ring (18) and a second sliding ring (21) in a sliding way, two ends of the control rod (22) respectively penetrate through the inner parts of the first sliding ring (18) and the second sliding ring (21) in a sliding way, the second sliding ring (21) is provided with a control component for controlling the outer clamping component, the first sliding ring (18) is provided with an inner clamping component for clamping the inner wall of the valve body (2), a plurality of flange holes (29) are formed in the valve body (2), a valve rod hole (30) is formed in a top plate of the valve body (2), and a valve rod groove (31) is formed in the inner wall of the bottom of the valve body (2).

2. The processing device for producing the pneumatic butterfly valve according to claim 1, wherein the outer clamping assembly comprises two second transverse plates (8) slidably connected to one side of a sliding plate (10), fixed blocks (7) are fixedly connected to the sides of the two second transverse plates (8) far away from each other, first transverse plates (5) are slidably connected to the ends of the two fixed blocks (7) far away from each other, two first electric push rods (12) symmetrically arranged are fixedly connected to one side of the supporting plate (11), an output shaft of each first electric push rod (12) penetrates through the supporting plate (11) and the sliding plate (10) and is fixedly connected with a rectangular box (9), one end of each first transverse plate (5) extends into the rectangular box (9) and is slidably connected with the rectangular box (9), and first vertical rods (4) are fixedly connected to the sides of the two first transverse plates (5) close to each other, two one side that first montant (4) are close to each other all fixedly connected with outer cardboard (3).

3. The processing device for the production of the pneumatic butterfly valve according to claim 1, characterized in that the inner clamping assembly comprises two first connecting plates (17) rotatably connected to one side of a first sliding ring (18), wherein the ends of the two first connecting plates (17) remote from each other are rotatably connected with second vertical rods (15), and the ends of the two second vertical rods (15) remote from each other are slidably connected with an inner clamping plate (16) through the cylinder (1).

4. The processing device for producing the pneumatic butterfly valve according to claim 1, wherein the control assembly comprises two second connecting rods (20) rotatably connected to one side of a second sliding ring (21), the top and the bottom of the cylinder (1) are both provided with mounting holes (25), one ends of the two second connecting rods (20) far away from each other extend into the mounting holes (25) and are rotatably connected with lifting blocks (6), the lifting blocks (6) are slidably connected with the mounting holes (25), and one ends of the two lifting blocks (6) far away from each other extend to the outside of the mounting holes (25) and are slidably connected with a second transverse plate (8).

5. The processing device for the production of the pneumatic butterfly valve according to claim 1, characterized in that a second stopper (28) and a first stopper (24) are fixedly connected to two ends of the control rod (22), respectively.

6. The processing device for the production of the pneumatic butterfly valve according to claim 2, characterized in that a spring (32) is fixedly connected between the side where the two first transverse plates (5) are close to each other and the inner wall of the side where the two rectangular boxes (9) are close to each other.

7. The machining device for the production of pneumatic butterfly valves according to claim 1, characterized in that said control rod (22) is fixed with a second pusher block (27) and a first pusher block (26), said second pusher block (27) being located between the first sliding ring (18) and the threaded block (19), said first pusher block (26) being located between the threaded block (19) and the second sliding ring (21).

8. A process for manufacturing a pneumatic butterfly valve according to any one of claims 1 to 7, comprising the following steps:

s1, sleeving the valve body (2) on the cylinder (1), starting the screw rod motor (14), enabling an output shaft of the screw rod motor (14) to rotate forwardly, enabling the output shaft of the screw rod motor (14) to drive the screw rod (23) to rotate, enabling the screw rod (23) to drive the thread block (19) to move transversely in a direction close to the first sliding ring (18), enabling the thread block (19) to push the second pushing block (27) to move transversely, enabling the second pushing block (27) to move transversely and push the first sliding ring (18) to move transversely, enabling the first sliding ring (18) to drive the first connecting plate (17) to rotate, enabling the first connecting plate (17) to drive the two second vertical rods (15) to move away from each other, enabling the second vertical rods (15) to drive the two inner clamping plates (16) to move away from each other, enabling the inner clamping plates (16) to abut against the inner wall of the valve body (2), and fixing the valve body (2);

s2, a lead screw motor (14) is turned off, a second electric push rod (13) is started, a piston rod of the second electric push rod (13) pushes a cylinder (1) to move transversely, the cylinder (1) drives a valve body (2) to move transversely, at the moment, a lifting block (6) slides at the bottom of a second transverse plate (8), when the valve body (2) moves to one side of the bottom of an outer clamping plate (3), the second electric push rod (13) is turned off, at the moment, the outer wall, two sides and a flange hole (29) of the valve body (2) can be polished, after polishing is completed, the second electric push rod (13) is started again, and the cylinder (1) and the valve body (2) are moved to the original position;

at the step of S3, the method comprises the steps of, the screw motor (14) is started again, the output shaft of the screw motor (14) is enabled to rotate reversely, the output shaft of the screw motor (14) drives the screw rod (23) to rotate, the screw rod (23) drives the thread block (19) to move transversely in the direction close to the second sliding ring (21), the thread block (19) drives the first pushing block (26) to move transversely, the first pushing block (26) pushes the second sliding ring (21) to move transversely and drives the second limiting block (28) to move transversely through the control rod (22), the second limiting block (28) drives the first sliding ring (18) to move transversely in the direction close to the second sliding ring (21), the first sliding ring (18) drives the first connecting plate (17) to rotate, the first connecting plate (17) drives the two second vertical rods (15) to be close to each other, the second vertical rods (15) drive the two inner clamping plates (16) to be close to each other, and further the braking of the valve body (2) by the inner clamping plates (16) is relieved;

s4, a second sliding ring (21) drives a second connecting rod (20) to rotate, the second connecting rod (20) drives two lifting blocks (6) to approach each other, the lifting blocks (6) drive two second transverse plates (8) to approach each other, the second transverse plates (8) drive two fixed blocks (7) to approach each other, the fixed blocks (7) drive two first transverse plates (5) to approach each other, the first transverse plates (5) extrude springs (32) and drive two first vertical rods (4) to approach each other, the first vertical rods (4) drive two outer clamping plates (3) to approach each other and clamp the outer wall of a valve body (2), a lead screw motor (14) is closed, a first electric push rod (12) is started, a piston rod of the first electric push rod (12) drives a rectangular box (9) to move transversely, the rectangular box (9) drives the first transverse plates (5) to move transversely, and the first transverse plates (5) slide on the fixed blocks (7), first diaphragm (5) drive first montant (4) lateral shifting, and first montant (4) drive outer cardboard (3) lateral shifting, and outer cardboard (3) drive valve body (2) lateral shifting until valve body (2) remove to one side of drum (1), closes first electric putter (12) this moment, can begin to polish the inner wall of valve body (2).