CN113305709A

CN113305709A - Valve body integral polishing device and method

Info

Publication number: CN113305709A
Application number: CN202110703811.8A
Authority: CN
Inventors: 刘淑英
Original assignee: Shandong Kouton Environmental Protection Equipment Technology Co ltd
Current assignee: Shandong Kouton Environmental Protection Equipment Technology Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-08-27

Abstract

The invention provides a valve body integral polishing device and a method, wherein the polishing device comprises a workbench and a polishing barrel arranged on the workbench, the polishing barrel is used for placing a valve body, and the valve body integral polishing device also comprises: the upper thimble and the lower thimble are respectively arranged at two ends of the valve body and used for clamping and fixing the valve body, wherein the upper thimble is connected with a rotary driving piece capable of driving the valve body to rotate; the protruding polishing assembly is used for polishing the protruding part of the valve body, comprises a protruding polishing ring arranged on the protruding part of the valve body in a sleeved mode, a telescopic torsion transmission rod connected with the protruding polishing ring, and a gear connected with the telescopic torsion transmission rod, wherein the gear is meshed with a gear ring arranged on the circumferential direction of the inner wall of the polishing barrel, and the valve body circumference polishing assembly is used for polishing the circumference face of the valve body. When the valve body is polished, the circumferential surface of the valve body and the protruding part of the valve body can be polished in all directions at one time, the efficiency is high, and the polishing effect is good.

Description

Valve body integral polishing device and method

Technical Field

The invention mainly relates to the technical field of valves and valve bodies, in particular to a valve body integral polishing device and method.

Background

The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The valve still divide into the cast iron valve according to the material, the cast steel valve, the stainless steel valve, chromium molybdenum vanadium steel valve, diphase steel valve, plastic valves and nonstandard customized valve etc, and no matter which valve is when producing, in order to guarantee its quality, the spare part of valve all need through meticulous polishing, just can normal use, but traditional grinding device is when polishing the valve part, often need staff's manual operation to polish, still need be according to the different angles of different parts, polish in proper order its turn in batches, will polish through many times processing, the operation is complicated, long-time work makes staff easy production error when the operation, influence quality of polishing and efficiency of polishing. Some traditional automatic equipment of polishing because of having the bellying on the valve body, therefore a clamping is difficult to accomplish and is polished comprehensively to the valve body, and it still needs to carry out the operation of polishing of part manual work after taking off the valve body finally. Therefore, it is necessary to provide a grinding device for manufacturing a valve to solve the above problems.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the valve body integral polishing device and the method by combining the prior art and starting from practical application.

In order to achieve the purpose, the technical scheme of the invention is as follows:

according to one aspect of the invention, the whole valve body polishing device comprises a workbench and a polishing barrel arranged on the workbench, wherein the polishing barrel is used for placing a valve body, and the whole valve body polishing device further comprises:

the upper thimble and the lower thimble are respectively arranged at two ends of the valve body and used for clamping and fixing the valve body, wherein the upper thimble is connected with a rotary driving piece capable of driving the valve body to rotate;

the device comprises a valve body protrusion, a protrusion polishing assembly and a gear, wherein the protrusion polishing assembly is used for polishing the protrusion part of the valve body and comprises a protrusion polishing ring sleeved on the protrusion of the valve body, a telescopic torsion transmission rod connected with the protrusion polishing ring and a gear connected with the telescopic torsion transmission rod, and the gear is meshed and matched with a gear ring arranged on the circumferential direction of the inner wall of a polishing barrel;

the valve body circumference polishing assembly is used for polishing the circumference of a valve body and comprises a plurality of polishing blocks and a connecting rod mechanism connected with the polishing blocks, wherein the connecting rod mechanism is connected with a clamping driving piece and can control the polishing blocks to move towards the direction close to or far away from the circumference of the valve body under the action of the clamping driving piece.

Further, the valve body circumference grinding assembly includes:

the polishing blocks of the convex part circumference polishing assembly are arranged on the circumference surface of the valve body at the position corresponding to the bulge of the valve body;

the two-end circumference polishing assembly is characterized in that the polishing blocks of the two-end circumference polishing assembly are arranged on the circumference surface of the valve body at the corresponding positions at the two protruding ends of the valve body.

Further, the link mechanism of the both ends circumference subassembly of polishing includes:

a movable plate connected with the clamping driving member;

the tensioning rod is matched with the movable plate and used for moving along with the movable plate when the movable plate acts;

one end of the clamping connecting rod is hinged with the tensioning rod, and the other end of the clamping connecting rod is hinged with the hinge seat;

one end of the guide rod is connected with the hinge seat, the other end of the guide rod penetrates through the side wall of the polishing barrel to be connected with the polishing block, a first spring is sleeved on the guide rod, and the first spring applies force to the guide rod towards the direction of the valve body;

when the guide rod moves towards the direction far away from the valve body under the action of the tensioning rod, the connected grinding block is separated from the circumferential surface of the valve body, and when the guide rod moves towards the direction close to the valve body under the action of the first spring, the connected grinding block is attached to the circumferential surface of the valve body.

Further, the link mechanism of the lobe periphery grinding assembly includes:

a movable plate connected with the clamping driving member;

one side of the guide rail fixing seat is connected with the hinge seat, the other side of the guide rail fixing seat is provided with the linear guide rail, and the other side of the guide rail fixing seat is also provided with a tension spring which applies force to the guide rail fixing seat towards the direction of the valve body;

one end of the guide rod is connected to the linear guide rail, and the other end of the guide rod penetrates through the side wall of the polishing barrel to be connected with the polishing block;

when the guide rod moves away from the valve body along with the guide rail fixing seat under the action of the tension rod, the connected polishing block is separated from the circumferential surface of the valve body, and when the guide rod moves close to the valve body along with the guide rail fixing seat under the action of the tension spring, the connected polishing block is attached to the circumferential surface of the valve body;

the guide rod moves along the linear guide rail under the action of the protruding polishing group, so that the polishing block connected with the guide rod can generate displacement along the axial direction of the valve body to avoid interference with the protruding polishing assembly.

Furthermore, two sliding blocks are arranged on a linear guide rail of the circumferential polishing assembly of the boss, a guide rod is correspondingly arranged on each sliding block, and an auxiliary tension spring is arranged between the two sliding blocks;

set up on the telescopic torsion transmission pole of protruding subassembly of polishing and keep away the barrier runner, protruding subassembly of polishing moves when the subassembly position of polishing to bellying circumference, keep away the barrier runner and promote two guide bar relative motion, the guide bar drives the polishing piece that corresponds and avoids protruding subassembly of polishing along valve body axial displacement, when protruding subassembly of polishing passes through the subassembly position of polishing of bellying circumference, under the effect of supplementary extension spring, the polishing piece resets along with the guide bar.

Furthermore, the two-end circumference grinding assemblies are arranged in one group and comprise two grinding blocks, and the two grinding blocks are respectively and correspondingly arranged at the two ends of the bulge of the valve body;

the valve body is characterized in that the two groups of boss circumference polishing assemblies are arranged, the two groups of boss circumference polishing assemblies are respectively located on two sides of each end circumference polishing assembly, each group of boss circumference polishing assemblies comprises two polishing blocks, and the two polishing blocks are correspondingly arranged at the protruding positions of the valve body.

Further, the telescopic torque transfer rod comprises:

one end of the rotating connecting rod is fixedly connected with the protruding polishing ring;

and one end of the rotating square rod is slidably arranged in the rotating connecting rod and is provided with a second spring, and the other end of the rotating square rod is fixedly connected with the gear.

Further, the rotary driving part is connected to the clamping driving part through an auxiliary plate;

a protective cover plate is arranged on the rotary driving piece;

when the clamping driving piece moves to enable the polishing block to move towards the direction close to the valve body, the protective cover plate moves along with the polishing block to seal the top of the polishing barrel, and when the clamping driving piece moves to enable the polishing block to move towards the direction far away from the valve body, the protective cover plate moves along with the polishing block to open the top of the polishing barrel.

Further, the clamping driving part is an air cylinder, and the rotating driving part is a motor.

According to another aspect of the invention, a valve body integral polishing method is provided, and the valve body integral polishing device comprises the following steps:

s1, placing the valve body on the lower thimble, taking out the protrusion polishing component, sleeving the protrusion polishing ring on the protrusion of the valve body, and meshing the gear with the gear ring to complete the installation of the protrusion polishing component;

s2, controlling the cylinder to fall back downwards, controlling the movable plate to fall along with the cylinder, enabling the tension rod to move downwards, enabling the guide rods of the circumferential polishing assemblies at two ends to move towards the valve body under the action of a first spring to drive the connected polishing blocks to be in contact with the valve body, enabling the guide rods of the circumferential polishing assemblies at the protruding parts to move towards the valve body under the action of a tension spring to drive the connected polishing blocks to be in contact with the valve body, enabling the motor to move downwards under the action of the cylinder to finally enable the upper ejector pins to be in contact with the valve body, and enabling the protective cover plate to be sealed with the polishing barrel;

s3, starting a motor, rotating the valve body under the action of the upper thimble and the lower thimble, polishing the circumferential surface of the valve body by a polishing block when the valve body rotates, driving a protrusion polishing ring to rotate by a protrusion of the valve body, driving a gear to travel along a gear ring by the protrusion polishing ring, driving the protrusion polishing ring to rotate around the axis of the gear by the rotation of the gear, and polishing the protrusion of the valve body;

s4, when the protruding polishing assembly moves to the position of the protruding portion circumference polishing assembly, the protruding polishing assembly contacts a guide rod of the protruding polishing assembly under the action of the obstacle avoidance rotating wheel, the guide rod moves along a linear guide rail, the polishing block is further driven to move along the axis of the valve body to avoid a protruding polishing ring, and after the obstacle avoidance rotating wheel passes through the protruding polishing assembly, the polishing block resets under the action of an auxiliary tension spring;

s5, after polishing is completed, the air cylinder is controlled to ascend, the rotating motor and the upper ejector pin are driven to ascend, the top of the polishing barrel is opened by the protective cover plate along with the action of the rotating motor, meanwhile, each polishing block is separated from the valve body, and the valve body is taken out after the protruding polishing assembly is taken out.

The invention has the beneficial effects that:

1. according to the valve integral polishing device and method provided by the invention, the valve protrusion position can be polished through the protrusion polishing assembly, and the rest of the circumferential surface of the valve body can be polished through the valve body circumferential polishing assembly, so that the valve body can be completely polished through one-time clamping, the polishing efficiency can be obviously improved, and the labor intensity of manpower is reduced.

2. According to the valve integral polishing device and method provided by the invention, the action of the protrusion polishing assembly is linked with the rotation of the valve body, and the protrusion polishing ring can rotate by matching of the gear and the gear ring when the valve body rotates, so that the polishing of the protrusion part is completed, and the integral structure is simple and compact in design and easy to realize.

3. According to the valve integral polishing device and method provided by the invention, the valve body circumference polishing assembly is divided into the bulge circumference polishing assembly and the two ends circumference polishing assembly, the valve body can be surrounded from top to bottom in an all-around manner, and the circumference polishing assembly and the two ends circumference polishing assembly are controlled by the same cylinder, so that the linkage is good, the structural design is compact, and the cost is low; in addition, in order to avoid interference when the protrusion polishing assembly passes through the protrusion circumference polishing assembly, the polishing blocks of the protrusion circumference polishing assembly are designed into a structure capable of automatically avoiding obstacles, so that the omnibearing polishing of the circumferential surface of the valve body is ensured on one hand, and the safe and stable operation of the device is ensured on the other hand.

4. According to the integral valve polishing device and method provided by the invention, the protective cover plate is designed into a structure linked with the air cylinder, the polishing barrel can be automatically sealed in the polishing process, the polished dust can be absorbed by arranging the corresponding air exhaust device, the environment-friendly requirement can be met, the polishing environment is improved, and the protective cover plate is automatically opened after polishing, so that the valve body can be conveniently taken and placed.

Drawings

FIG. 1 is a first schematic structural diagram of the present invention.

FIG. 2 is a second schematic structural diagram of the present invention.

FIG. 3 is a schematic diagram of the movable plate structure of the present invention.

Fig. 4 is a schematic view of the structure of the auxiliary baffle of the present invention.

FIG. 5 is a schematic cross-sectional view of the sanding block of the present invention.

Reference numerals shown in the drawings:

1. a work table; 2. a cylinder; 3. a hinge mount; 4. clamping the connecting rod; 5. an auxiliary baffle; 6. a movable plate; 7. a tension rod; 8. a guide bar; 9. a first spring; 10. a spring baffle; 11. grinding blocks; 12. a motor; 13. an upper thimble; 14. a protective cover plate; 15. polishing the barrel; 16. a valve body; 17. a raised grinding ring; 18. rotating the connecting rod; 19. an obstacle avoidance rotating wheel; 20. rotating the square rod; 21. a gear; 22. a toothed ring; 23. a second spring; 24. a lower thimble; 25. a guide rail fixing seat; 26. a tension spring; 27. a linear guide rail; 28. an auxiliary tension spring.

Detailed Description

The invention is further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.

Fig. 1 to 5 are schematic structural diagrams of a valve body integral grinding device provided in this embodiment. Wherein, fig. 1 is a front view structure diagram cut back and forth, and fig. 2 is a side view structure diagram cut left and right.

The polishing device provided by the embodiment mainly comprises a workbench 1 and a polishing barrel 15 fixed on the workbench 1, wherein a valve body 16 is installed in the polishing barrel 15, and the axial direction is supported by an upper thimble 13 and a lower thimble 24. Wherein, the last thimble 13 is installed in the axis of rotation of motor 12, can rotate along with motor 12, and then drives the valve body 16 and rotate, and motor 12 is connected to the jar pole of cylinder 2 through an accessory plate, can be along with cylinder 2 action elevating movement, and cylinder 2 is fixed and is located the bucket 15 outside of polishing on workstation 1. The lower needle 24 is mounted to the bottom of the grinding barrel 15 by a bearing. Preferably, motor 12 still is provided with protective cover 14, and protective cover 14 moves along with motor 12, and when its whereabouts, can seal polishing bucket 15, through air exhaust device will polish the interior dust that produces of bucket 15 take out can, polish the completion back, protective cover 14 can rise along with motor 12 and open polishing bucket 15 top, the dismouting of completion valve body 16 that this moment can be convenient.

Since the valve body 16 is required to be equipped with a valve, the valve body 16 generally has a projection on one side in addition to the circumferential surface. This grinding device mainly realizes the omnidirectional through protruding subassembly and the 16 circumference subassemblies of polishing of valve body and polishes. Specifically, protruding subassembly of polishing sets up inside polishing bucket 15, and the mainly used 16 protruding positions of valve body of polishing locates protruding ring 17 of polishing in the valve body 16 arch, the gear 21 of being connected with the telescopic torsion transmission pole and the telescopic torsion transmission pole that protruding ring 17 is connected including the cover, and the inner wall circumference suitable position of polishing bucket 15 sets up round ring gear 22, this gear 21 and the cooperation of ring gear 22 meshing. Preferably, the telescopic torque transmission rod can be contracted on one hand to facilitate the disassembly and assembly of the protrusion grinding assembly, and on the other hand can transmit torque. It is mainly composed of a rotating link 18, a rotating square bar 19 and a second spring 23 shown in fig. 1 and 2. The rotary connecting rod 18 is fixedly connected with the convex grinding ring 17, and the rotary square rod 19 is in sliding fit with the rotary connecting rod 18 to achieve shrinkage and achieve torque transmission through a square structure of the rotary square rod. The principle of the valve body 16 protrusion polishing by the protrusion polishing component is as follows: when the valve body 16 rotates, the protrusion of the valve body 16 can drive the protrusion grinding ring 17 to move, and then the protrusion grinding ring 17 drives the gear 21 to move around the circumference of the valve body 16 along the toothed ring 22 through the telescopic torque transmission rod, and meanwhile, the rotation of the gear 21 can be transmitted to the protrusion grinding ring 17 through the telescopic torque transmission rod, so that the protrusion grinding ring 17 can be driven to move around the axis of the gear 21, and then the protrusion of the valve body 16 coated with the protrusion grinding ring can be ground.

The valve body circumference grinding assembly of the embodiment mainly realizes grinding of the circumference of the valve body 16 through a plurality of grinding blocks 11. The plurality of grinding blocks 11 can synchronously realize the clamping or loosening movement of the valve body 16, and the cross section of each grinding block 11 is an arc surface so as to be conveniently matched with the circumferential surface of the valve body 16. The clamping and releasing actions of the plurality of sanding blocks 11 are realized by a link mechanism, and the power of the link mechanism is provided by the air cylinder 2.

Preferably, the valve body circumference grinding assembly of the present embodiment includes: the bulge circumference grinding component and the two-end circumference grinding components. Wherein as shown in fig. 1, two end circumference grinding assemblies are provided in one group, that is, the part shown in fig. 1, which mainly includes two grinding blocks 11, the two grinding blocks 11 are respectively arranged on one side of the valve body 16, and are arranged symmetrically up and down with the convex part as the center in the axial direction of the valve body 16, and the two grinding blocks 11 shown in fig. 1 can realize the grinding of other circumferential surfaces of the valve body 16 in the circumferential direction except the circumferential surface corresponding to the convex part. The bulge circumference grinding assemblies are symmetrically arranged into two groups as shown in figure 2, so that the two groups of bulge circumference grinding assemblies and a group of two-end circumference grinding assemblies are mutually arranged at 90 degrees, and the clamping fixation of the three surfaces of the valve body 16 is realized together. As shown in fig. 2, each group of the circumferential polishing assemblies for the protruding portions comprises two polishing blocks 11, and the two polishing blocks 11 are arranged in parallel corresponding to the protruding portions of the valve body 16, so that the corresponding circumferential surfaces of the protruding portions can be polished. Therefore, the valve body 16 can be completely polished by matching the polishing blocks 11 of the circumferential polishing assemblies at the protruding parts, the polishing blocks 11 of the circumferential polishing assemblies at the two ends and the protruding polishing rings 17.

In this embodiment, the link mechanism of the two-end circumference grinding assembly is the same as the link mechanism of the boss circumference grinding assembly in main principle, but has some differences. Specifically, the link mechanism of the two-end circumference grinding assembly is shown in fig. 1 and comprises a movable plate 6, the movable plate 6 is fixedly connected to a cylinder rod of the cylinder 2 and can move up and down along with the expansion and contraction of the cylinder rod, a through hole is formed in the movable plate 6, a tension rod 7 is arranged in the through hole, preferably, a limiting head is arranged at the top of the tension rod 7, and the tension rod 7 is in sliding fit with the movable plate 6; an auxiliary baffle 5 is arranged on one side of the cylinder 2 and used for supporting the tension rod 7 at the bottom and limiting the tension rod 7. 4 one ends of the clamping connecting rods are hinged with the tensioning rod 7, the other ends of the clamping connecting rods are hinged with the hinge seat 3, the number of the guide rods 8 is four, every two of the guide rods support a polishing block 11, the guide rods 8 are connected with the hinge seat 3 through an auxiliary plate, the other ends of the guide rods 8 penetrate through the side wall of the polishing barrel 16 to be connected with the polishing block 11, the guide rods 8 are sleeved with first springs 9, and the first springs 9 are located between spring baffles 10 arranged on the inner wall of the polishing barrel 16 and the guide rods 8. The working principle of the two-end circumference polishing assembly is as follows: when the cylinder 2 retracts downwards, the movable plate 6 falls back along with the cylinder, at the same time, the tensioning rod 7 falls under the action of gravity until the tensioning rod contacts with the auxiliary baffle 5, and meanwhile, under the pushing action of the first spring 9, the guide rod 8 moves towards the direction close to the valve body 16, so that the grinding block 11 is attached to the circumferential surface of the valve body 16, and thus, when the valve body 16 rotates, the circumferential surface can be ground. When the cylinder 2 ascends, the movable plate 6 is driven to ascend, the movable plate 6 drives the tension rod 7 to ascend, under the connecting rod structure consisting of the tension rod 7, the clamping connecting rod 4, the hinge seat 3 and the guide rod 8, the guide rod 8 is driven by the ascending of the tension rod 7 to move towards the direction away from the valve body 16, the first spring 9 is compressed, the grinding block 11 is driven to be away from the valve body 16 at the same time, and the attachment with the valve body 16 is removed.

The two convex part circumference grinding assemblies provided by the embodiment and the two end circumference grinding assemblies adopt the same movable plate 6 and the auxiliary baffle 5. Fig. 3 and 4 show the structure of the movable plate 6 and the auxiliary baffle 5. The link structure of the lobe periphery grinding assembly is also realized by the tension rod 7, the clamping link 4, the hinge mount 3 and the guide rod 8. However, the sanding blocks 11 of the sanding block are arranged in correspondence of the projections due to the projections. Therefore, when the valve body 16 rotates, the position of the sanding block 11 interferes with the raised sanding ring 17, so that the raised sanding ring 17 cannot pass through the corresponding position of the sanding block 11 smoothly. Therefore, this embodiment has set up corresponding obstacle-avoiding structure on bellying circumference subassembly of polishing. Specifically, two guide rods 8 are arranged on a linear guide rail 27, an auxiliary tension spring 28 is arranged between two sliding blocks on the linear guide rail 27, the linear guide rail 27 is installed on a guide rail fixing seat 25, the guide rail fixing seat 25 is connected with a hinge seat 3, and a second spring 25 is arranged between the guide rail fixing seat 25 and the outer wall of the polishing barrel 16 so as to provide clamping power for the polishing block 11. And the side wall of the grinding barrel 16 is provided with an opening which can be used for realizing certain movement of the guide rod 8 in the axial direction of the valve body 16. Install one on protruding grinding assembly's rotation connecting rod 18 and keep away barrier runner 19, when protruding grinding assembly moved the position of bellying circumference grinding assembly, promote two guide bars 8 through keeping away barrier runner 19 and outwards move along the 16 axis directions of valve body, make two corresponding sanding blocks 11 equally move separately, provide the space that passes through for protruding grinding assembly, when keeping away barrier runner 19 and passing through the back, under supplementary extension spring 28 effect, sanding block 11 can reset. Therefore, the protruding part circumference grinding assembly provided by the embodiment can not only realize grinding of the corresponding peripheral surface of the protruding part of the valve body 16, but also automatically adjust and avoid obstacles.

According to another aspect of the invention, the embodiment of the invention also provides a grinding method of the grinding device. Specifically, the method comprises the following steps:

(1): before use, the gas circuit, the circuit and the like are checked to ensure the completeness;

placing the valve body 16 on the lower thimble 24;

simultaneously, taking out the protrusion polishing assembly, grasping the obstacle avoidance rotating wheel 19 and the gear 21, enabling the rotating square rod 20 to move towards the inside of the rotating connecting rod 18 to compress the second spring 23, sleeving the protrusion polishing ring 17 on the protrusion of the valve body 16, grasping the gear 21 to slowly loosen and engage with the gear ring 22, and enabling the installation of the protrusion polishing assembly to be completed; at the moment, the convex part on one side of the gear 21 is contacted with the grinding barrel 15, so that the increase of the friction resistance caused by the contact of the gear 21 and the grinding barrel 15 is prevented;

(2): after being placed, the cylinder 2 is made to fall back downwards to the state shown in the figures 1 and 2;

in the falling-back process, the movable plate 6 falls down along with the cylinder shaft, at the moment, the tensioning rod 7 moves downwards under the action of gravity and finally contacts with the auxiliary baffle 5, so that the clamping connecting rod 4 also moves downwards, and the hinge seat 3 is loosened and moves under the action of the auxiliary connecting rod of the guide rod 8; meanwhile, under the action of the first spring 9, the guide rod 8 moves towards the valve body 16, so that the grinding block 11 is driven to be in contact with the valve body 16;

meanwhile, the grinding blocks 11 of the two symmetrical sets of lug boss circumference grinding assemblies have the same motion mode, the power is realized by a tension spring 26,

three-point positioning is realized through three groups (6) of grinding blocks 11 to clamp the valve body 16; meanwhile, the motor 12 moves downwards under the action of the cylinder 2 and finally makes the upper thimble 13 contact with the valve body 16; meanwhile, the protective cover plate 14 and the polishing barrel 15 form sealing;

(3): starting the motor 12, and realizing the rotation of the valve body 16 under the action of the upper thimble 13 and the lower thimble 24;

at the moment, the grinding blocks 11 are in contact with the valve body 16, the grinding blocks 11 are distributed in three circumferential directions to form an arc surface which is in contact with the valve body 16 from top to bottom, and grinding is realized when the valve body 16 rotates;

meanwhile, the bulge of the valve body 16 drives the bulge grinding ring 17 to rotate, and the gear 21 is driven to rotate through the rotating connecting rod 18 and the rotating square rod 20; because the gear 21 is meshed with the gear ring 22, when the gear 21 rotates around the axis of the valve body 16, the gear 21 rotates around the axis of the gear 21, and the bulge of the valve body 16 is polished by the bulge polishing ring 17;

(4): when the raised sanding ring 17 moves to the raised portion circumference sanding assembly, i.e., the sanding assembly of FIG. 2;

the two groups of guide rods 8 are contacted under the action of the obstacle avoidance rotating wheel 19, and the guide rods 8 move in the two directions up and down under the action of the obstacle avoidance rotating wheel 19 and move along the linear guide rail 27; so that the grinding blocks 11 are separated from the raised grinding ring 17; after the obstacle avoidance rotating wheel 19 passes through, the guide rod 8 drives the grinding block 11 to reset under the action of the auxiliary tension spring 28;

(5): after polishing is finished, the cylinder 2 is operated to ascend to drive the motor 12 and the upper thimble 13 to ascend; at this time, the tensioning rod 7 has a certain free distance with the movable plate 6, so that the valve body 16 cannot fall down when the upper thimble 13 leaves;

when the movable plate 6 moves to the position limited by the tension rod 7, the movable plate 6 drives the tension rod 7 to ascend, the clamping connecting rod 4 is driven to move by the shaft pin, and the guide rod 8 is driven to move towards the periphery of the polishing barrel 15 by the hinge seat 3, so that the polishing block 11 is separated from the valve body 16; simultaneously compressing the first spring 9 and the tension spring 26;

at the moment, the protective cover plate 14 rises to the top end along with the motor 12 under the action of the cylinder 2; an operator grasps the obstacle avoidance rotating wheel 19 to enable the protrusion grinding ring 17 to drive the rotating connecting rod 18 to move towards the direction of the gear 21 to compress the second spring 23 so as to enable the second spring to be separated from the protrusion of the valve body 16, and then the device is taken out, and the ground valve body 16 is taken out;

in the whole polishing process, an air exhaust device is arranged in the polishing barrel 15 and used for sucking polished dust;

(6): and (5) polishing a new valve body 16, and repeating the steps (1) - (5).

In the embodiment, the gear ring is meshed to polish the convex part, the polishing device is tightly contacted with the valve body under the action of the tension rod guide rod, and the polishing block is prevented from polishing the convex part under the action of the obstacle avoidance rotating wheel; the grinding machine realizes one-time clamping and integral grinding, reduces potential safety hazards, lightens labor intensity, and improves grinding quality and grinding efficiency.

Claims

1. The utility model provides a whole grinding device of valve body, includes the workstation, sets up the bucket of polishing on the workstation, be used for placing the valve body in the bucket of polishing, its characterized in that still includes:

2. The valve body integral sharpening apparatus of claim 1, said valve body circumference sharpening assembly comprising:

3. The valve body integral sharpening apparatus of claim 2, wherein said linkage of said two end circumference sharpening assembly comprises:

a movable plate connected with the clamping driving member;

4. The valve body integrated grinding apparatus of claim 2, wherein the linkage of the boss circumference grinding assembly comprises:

a movable plate connected with the clamping driving member;

5. The valve body integral grinding device as claimed in claim 4, wherein two slide blocks are arranged on the linear guide rail of the boss circumference grinding assembly, a guide rod is correspondingly arranged on each slide block, and an auxiliary tension spring is arranged between the two slide blocks;

6. The integral valve body grinding device according to any one of claims 2 to 5, wherein the two-end circumference grinding assemblies are arranged in a group and comprise two grinding blocks, and the two grinding blocks are respectively correspondingly arranged at two ends of the bulge of the valve body;

7. The valve body sanding device in its entirety of claim 1, wherein the telescoping torque transfer rod comprises:

8. A valve body integral grinding apparatus as claimed in claim 1, wherein said rotary drive member is connected to the clamp drive member through an auxiliary plate;

a protective cover plate is arranged on the rotary driving piece;

9. A valve body integrated grinding apparatus as claimed in claim 1, wherein said clamping drive member is an air cylinder and said rotary drive member is a motor.

10. A valve body integral grinding method using the valve body integral grinding device according to any one of claims 1 to 9, characterized by comprising the steps of: