CN112372398B

CN112372398B - Intelligent inner surface grinding device for large-caliber high-strength corrosion-resistant stainless steel seamless steel pipe

Info

Publication number: CN112372398B
Application number: CN202011087469.5A
Authority: CN
Inventors: 季学文; 严冬云
Original assignee: Shanghai Desheng Group Co ltd
Current assignee: Shanghai Desheng Group Co ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-09-21
Anticipated expiration: 2040-10-13
Also published as: CN112372398A

Abstract

The invention discloses an intelligent inner surface polishing device for a large-caliber high-strength corrosion-resistant stainless steel seamless steel pipe, which comprises a portal frame, a first half-thousand impeller and a second half-thousand impeller, wherein the portal frame is fixed at the top of a base, the seamless steel pipe is arranged at the bottom of the portal frame at the top of the base, the first half-thousand impeller is arranged on one side of the seamless steel pipe, and the second half-thousand impeller is symmetrically arranged on the other side of the seamless steel pipe, under the action of a translation mechanism, the effect that the first half-thousand impeller and the second half-thousand impeller are inserted into the seamless steel pipe is realized, under the action of a rotation mechanism and a second motor, the relative rotation of the thousand impeller and the seamless steel pipe is realized, the polishing is more sufficient, and under the action of a locking mechanism, the two thousand impellers can not loosen in the rotation process, compared with the prior art, the inner wall of the seamless steel pipe is effectively polished.

Description

Intelligent inner surface grinding device for large-caliber high-strength corrosion-resistant stainless steel seamless steel pipe

Technical Field

The invention relates to the technical field of seamless steel pipe processing, in particular to an intelligent inner surface grinding device for a large-caliber high-strength corrosion-resistant stainless steel seamless steel pipe.

Background

Seamless steel pipes are steel pipes which are punched by a whole round steel and have no welding seams on the surface, and are called seamless steel pipes. The seamless steel pipe may be hot-rolled, cold-drawn, extruded, pipe-jacked, etc., depending on the production method. The seamless steel pipe is divided into a round shape and a special shape according to the shape of a section, and the special-shaped pipe has various complex shapes such as a square shape, an oval shape, a triangular shape, a hexagonal shape, a melon seed shape, a star shape and a pipe with fins. The maximum diameter is up to 900mm and the minimum diameter is 4 mm. Depending on the application, there are thick-walled seamless steel pipes and thin-walled seamless steel pipes. The seamless steel pipe is mainly used as a petroleum geology drill pipe, a cracking pipe, a boiler pipe and a bearing pipe for petrochemical industry, and a high-precision structural steel pipe for automobiles, tractors and aviation.

When polishing the inner wall of a seamless steel pipe in the prior art, the polishing device is difficult to completely stretch into the seamless steel pipe, so that the inner wall of the seamless steel pipe is not sufficiently polished, and therefore, the intelligent inner surface polishing device for the large-caliber high-strength corrosion-resistant stainless steel seamless steel pipe is provided.

Disclosure of Invention

The invention aims to provide an intelligent inner surface grinding device for a large-caliber high-strength corrosion-resistant stainless steel seamless steel pipe, which is used for sufficiently and efficiently grinding the inner wall of the seamless steel pipe through mutual matching of a plurality of driving mechanisms so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an intelligent inner surface polishing device for a large-caliber high-strength corrosion-resistant stainless steel seamless steel pipe comprises a portal frame, a base, the seamless steel pipe, a first half-thousand impeller and a second half-thousand impeller, a portal frame is fixed at the top of the base, a seamless steel pipe is arranged at the bottom of the portal frame at the top of the base, a first half impeller is arranged at one side of the seamless steel pipe, and the other side of the seamless steel tube is symmetrically provided with a second half-thousand impellers, the first half-thousand impellers and the second half-thousand impellers are in rotating contact with the inner wall of the seamless steel tube, a translation mechanism capable of driving the first half-thousand impellers and the second half-thousand impellers to gather together and separate towards the seamless steel tube is arranged in the base, the portal frame bottom is equipped with and drives seamless steel pipe pivoted slewing mechanism, first half thousand impeller and second half thousand impeller link ends are equipped with the locking mechanical system that the synchronous rotation of lockable realization was polished seamless steel pipe inner wall.

Preferably, the translation mechanism comprises a mounting plate, a first motor, a bidirectional threaded rod, a fixed block, a fixed plate, a sliding block, a limiting sleeve and a sliding chute, the mounting plate is fixed on one side of the base, and the top of the mounting plate is fixedly provided with a first motor, the inner part of the base is provided with a chute corresponding to the position of the first motor, and the output end of the first motor penetrates into the chute and is fixed with one end of a bidirectional threaded rod, the other end of the bidirectional threaded rod is rotationally connected with the chute through a rotating shaft, the surface of the bidirectional threaded rod close to the first motor is engaged and connected with a fixed plate, and the surface of the bidirectional threaded rod far away from the first motor is engaged and connected with a fixed block, the bidirectional threaded rod is positioned on the surfaces of the fixed plate and the fixed block and symmetrically sleeved with sliding blocks in a sliding manner, the sliding block top is fixed with the stop collar, and the stop collar is sliding cup joint with first half thousand impeller and second half thousand impeller.

Preferably, one side that seamless steel pipe was kept away from to first half thousand impeller and the half thousand impeller of second is fixed with the buffer layer, fixed block top fixed mounting has the second motor, and the buffer layer fixed connection of second motor output and first half thousand impeller, and the buffer layer of the half thousand impeller of second is connected through the pivot rotation with the fixed plate.

Preferably, the top of the fixing block is located on two sides of the second motor and two sides of the fixing plate and is fixedly provided with a connecting plate, one side, close to the seamless steel pipe, of the connecting plate is fixedly provided with one end of an electric telescopic rod, and the other end of the electric telescopic rod is fixedly connected with a limiting sleeve.

Preferably, fixed block and fixed plate both sides fixed mounting have the pulley, and the slide rail has been seted up to the position that the corresponding pulley of spout both sides inner wall, the pulley is sliding connection with the slide rail.

Preferably, slewing mechanism includes encapsulation case, third motor, actuating lever, driving pulley, mount and driven pulley, the encapsulation case is fixed in the portal frame bottom, and encapsulation case one side inner wall fixed mounting has the third motor, the output of third motor is fixed with the actuating lever, and the one end that the third motor was kept away from to the actuating lever rotates with the encapsulation incasement wall through the pivot to be connected, the actuating lever equidistance is fixed to have cup jointed driving pulley on the surface, the base top is located seamless steel pipe bottom symmetry and is fixed with the mount, and the mount rotates on the surface and has cup jointed driven pulley, driven pulley is sliding contact with seamless steel pipe, driving pulley passes through belt drive with driven pulley and is connected.

Preferably, the locking mechanism comprises a holding tank, an electric push rod, a clamping plate, a rotating rod, a clamping block, a clamping groove and a spring, the holding tank is arranged at the connecting end of the first half thousand impeller and the second half thousand impeller, an electric push rod is rotatably arranged in the holding tank, the output end of the electric push rod is rotatably connected with a clamping plate, the clamping plate is rotatably connected with the containing groove through a rotating shaft, one end of the clamping plate, which is far away from the electric push rod, is rotatably connected with the rear rotating rod, a clamping block is fixed at the top of one end of the rotating rod, which is far away from the clamping plate, a clamping groove is arranged on the surface of the clamping plate, the clamping block of the first half thousand impellers is movably clamped with the clamping groove of the second half thousand impellers, and the clamping groove activity joint of half thousand impeller fixture blocks of second and half thousand impellers, the bull stick of half thousand impellers of first and half thousand impellers of second respectively with the cardboard of half thousand impellers of second and the cardboard extrusion contact of half thousand impellers of first.

Preferably, the holding tank internal fixation has the one end of spring, and the other end and the electric putter fixed connection of spring.

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

when the device is used, after the seamless steel pipe is fixed, a first motor is started, the first motor drives a bidirectional threaded rod to rotate, so that a fixing plate and a fixing block are driven to move together, a first half-thousand impeller and a second half-thousand impeller are inserted into the inner wall of the seamless steel pipe, the first half-thousand impeller and the second half-thousand impeller are butted, rotating rods at two sides push a clamping plate at the other side to rotate, a clamping block of the rotating rod is clamped and fixed with a clamping groove of the clamping plate, when the clamping is required to be relieved, an electric push rod is started, the electric push rod pushes the clamping plate to rotate, so that the clamping block is separated from the clamping with the clamping groove of the clamping plate, after the first half-thousand impeller and the second half-thousand impeller are stably connected, the second motor is started, the combined thousand impeller is driven to rotate to polish the seamless steel pipe, a third motor is started, the third motor drives a driving rod and a driving belt wheel to rotate, under the rotating action of a belt, make driven pulleys and belt drive seamless steel pipe and rotate, the cooperation second motor carries out the inner wall and polishes, this kind of intelligent inner face grinding device of the corrosion-resistant stainless steel seamless steel pipe of heavy-calibre high strength, under translation mechanism's effect, the effect that first half thousand impeller and second half thousand impeller insert seamless steel pipe inside has been realized, under the effect of slewing mechanism and second motor, the relative rotation of thousand impeller and seamless steel pipe has been realized, it is more abundant to make polish, under locking mechanical system's effect, guaranteed that can not take place to become flexible at two thousand impellers of rotation in-process, compared with the prior art, effectually polish to seamless steel pipe inner wall.

Drawings

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

FIG. 2 is a schematic view of the connection between the fixing block and the sliding groove according to the present invention;

FIG. 3 is a schematic view of the locking mechanism of the present invention;

FIG. 4 is a schematic view of the connection of the rotating mechanism of the present invention with a seamless steel pipe;

FIG. 5 is a schematic view of the locking mechanism of the present invention in a locked state.

In the figure: 1. a gantry; 2. a base; 3. seamless steel pipes; 4. a first half thousand impellers; 5. a second half thousand impellers; 6. a translation mechanism; 61. mounting a plate; 62. a first motor; 63. a bidirectional threaded rod; 64. a fixed block; 641. a pulley; 65. a fixing plate; 66. a slider; 67. a limiting sleeve; 68. a chute; 681. a slide rail; 7. a second motor; 71. a buffer layer; 8. a rotating mechanism; 81. packaging the box; 82. a third motor; 83. a drive rod; 84. a driving pulley; 85. a fixed mount; 86. a driven pulley; 9. a locking mechanism; 91. accommodating grooves; 92. an electric push rod; 93. clamping a plate; 94. a rotating rod; 95. a clamping block; 96. a card slot; 97. a spring; 10. a connecting plate; 101. an electric telescopic rod.

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 and 2, the inner surface polishing device for the large-caliber high-strength corrosion-resistant thin-wall stainless steel seamless steel tube 3 in the drawings comprises a portal frame 1, a base 2, a seamless steel tube 3, a first half-vane wheel 4 and a second half-vane wheel 5, wherein the portal frame 1 is fixed at the top of the base 2, the seamless steel tube 3 is arranged at the bottom of the portal frame 1 at the top of the base 2, the first half-vane wheel 4 is arranged at one side of the seamless steel tube 3, the second half-vane wheel 5 is symmetrically arranged at the other side of the seamless steel tube 3, the first half-vane wheel 4 and the second half-vane wheel 5 are in rotating contact with the inner wall of the seamless steel tube 3, and the vane wheels, the thousand-wheel and the chuck-type vane wheel belong to one kind of coated abrasive tools, and each product is formed by bonding hundreds of gauze pieces, so that the name is obtained. The gauze is prepared by taking alumina as an abrasive and a base material as a cloth base through a production line, and then is prepared by laminating and adhering a gauze layer and full resin. The upper and lower open grooves of the chuck fix the sand blade between the upper and lower chucks, the two ends of the inner side edge of the sand blade are respectively provided with an L-shaped buckle groove and a fastening ring, the fastening ring is fixedly connected with the buckle groove, the fastening ring is solidified and bonded with the buckle groove through glue solution to form a flap wheel, and the flap wheel is divided into a straight groove and a U-shaped notch.

Referring to fig. 1 and 3, a translation mechanism 6 capable of driving the first half-thousand impeller 4 and the second half-thousand impeller 5 to move toward and away from the seamless steel pipe 3 is arranged inside the base 2, a rotating mechanism 8 capable of driving the seamless steel pipe 3 to rotate is arranged at the bottom of the portal frame 1, a locking mechanism 9 capable of locking and synchronously rotating to polish the inner wall of the seamless steel pipe 3 is arranged at the connecting end of the first half-thousand impeller 4 and the second half-thousand impeller 5, under the action of the translation mechanism 6, the effect that the first half-thousand impeller 4 and the second half-thousand impeller 5 are inserted into the seamless steel pipe 3 is achieved, under the action of the rotating mechanism 8 and the second motor 7, the relative rotation between the thousand impellers and the seamless steel pipe 3 is achieved, the polishing is more sufficient, and under the action of the locking mechanism 9, the two thousand impellers are ensured not to be loosened in the rotating process.

Referring to fig. 1, the translation mechanism 6 includes an installation plate 61, a first motor 62, a bidirectional threaded rod 63, a fixed block 64, a fixed plate 65, a sliding block 66, a limiting sleeve 67 and a sliding slot 68, the installation plate 61 is fixed on one side of the base 2, the first motor 62 is fixedly installed on the top of the installation plate 61, the sliding slot 68 is formed in the position corresponding to the first motor 62 inside the base 2, the output end of the first motor 62 penetrates through the sliding slot 68 and is fixed with one end of the bidirectional threaded rod 63, the other end of the bidirectional threaded rod 63 is rotatably connected with the sliding slot 68 through a rotating shaft, the fixed plate 65 is engaged and connected on the surface of the bidirectional threaded rod 63 close to the first motor 62, the fixed block 64 is engaged and connected on the surface of the bidirectional threaded rod 63 far from the first motor 62, the sliding blocks 66 are symmetrically slidably sleeved on the surfaces of the fixed plate 65 and the fixed block 64 of the bidirectional threaded rod 63, the sliding block 66 top is fixed with stop collar 67, and stop collar 67 and first half thousand impellers 4 and second half thousand impellers 5 are the slip cup joint, and when the fixed back of accomplishing of seamless steel pipe 3, open first motor 62, first motor 62 drives the rotation of two-way threaded rod 63 to drive moving together of gathering together of fixed plate 65 and fixed block 64, make first half thousand impellers 4 and second half thousand impellers 5 insert 3 inner walls of seamless steel pipe.

Referring to fig. 1, a buffer layer 71 is fixed on one side of the first half-thousand impeller 4 and the second half-thousand impeller 5 away from the seamless steel tube 3, a second motor 7 is fixedly mounted on the top of the fixing block 64, an output end of the second motor 7 is fixedly connected with the buffer layer 71 of the first half-thousand impeller 4, the buffer layer 71 of the second half-thousand impeller 5 is rotatably connected with the fixing plate 65 through a rotating shaft, and after the first half-thousand impeller 4 and the second half-thousand impeller 5 are stably connected, the second motor 7 is started to drive the combined thousand impeller to rotate to polish the seamless steel tube 3.

Referring to fig. 1, the top of the fixing block 64 is fixed with connecting plates 10 at two sides of the second motor 7 and two sides of the fixing plate 65, one side of each connecting plate 10 close to the seamless steel tube 3 is fixed with one end of an electric telescopic rod 101, the other end of the electric telescopic rod 101 is fixedly connected with a limiting sleeve 67, the limiting sleeve 67 plays a role in stabilizing the two half-thousand impellers in the moving process, and when the two half-thousand impellers are inserted into the seamless steel tube 3, the electric telescopic rod 101 is opened to enable the limiting sleeve 67 to move to the buffer layer 71, and the sliding block 66 slides on the bidirectional threaded rod 63.

Referring to fig. 2, pulleys 641 are fixedly mounted on two sides of the fixing block 64 and the fixing plate 65, and sliding rails 681 are disposed on positions of inner walls of two sides of the sliding groove 68 corresponding to the pulleys 641, wherein the pulleys 641 are slidably connected with the sliding rails 681, so as to increase fluency of the fixing block 64 and the fixing plate 65 during the translation process.

Referring to fig. 1 and 4, the rotating mechanism 8 includes a packaging box 81, a third motor 82, a driving rod 83, a driving pulley 84, a fixing frame 85 and a driven pulley 86, the packaging box 81 is fixed at the bottom of the portal frame 1, the third motor 82 is fixedly installed on the inner wall of one side of the packaging box 81, the driving rod 83 is fixed at the output end of the third motor 82, one end of the driving rod 83, far from the third motor 82, is rotatably connected with the inner wall of the packaging box 81 through a rotating shaft, the driving pulley 84 is fixedly sleeved on the surface of the driving rod 83 at equal intervals, the fixing frame 85 is symmetrically fixed at the bottom of the seamless steel tube 3 at the top of the base 2, the driven pulley 86 is rotatably sleeved on the surface of the fixing frame 85, the driven pulley 86 is in sliding contact with the seamless steel tube 3, the driving pulley 84 is connected with the driven pulley 86 through a belt, the third motor 82 is turned on, the driving rod 83 and the driving pulley 84 are driven by the third motor 82, under the rotation effect of belt, make driven pulley 86 and belt drive seamless steel pipe 3 and rotate, cooperate the second motor 7 to carry out the inner wall and polish.

Referring to fig. 3 and 5, the locking mechanism 9 includes a receiving groove 91, an electric push rod 92, a clamping plate 93, a rotating rod 94, a clamping block 95, a clamping groove 96 and a spring 97, the receiving groove 91 is formed at a connecting end of the first half-thousand impeller 4 and the second half-thousand impeller 5, the electric push rod 92 is rotatably installed inside the receiving groove 91, the output end of the electric push rod 92 is rotatably connected with the clamping plate 93, the clamping plate 93 is rotatably connected with the receiving groove 91 through a rotating shaft, one end of the clamping plate 93, far away from the electric push rod 92, is rotatably connected with the rear rotating rod 94, the clamping block 95 is fixed at the top of one end of the rotating rod 94, far away from the clamping plate 93, the clamping groove 96 is formed in the surface of the clamping plate 93, the clamping block 95 of the first half-thousand impeller 4 is movably clamped with the clamping groove 96 of the second half-thousand impeller 5, the clamping block 95 of the second half-thousand impeller 5 is movably clamped with the clamping groove 96 of the second half-thousand impeller 5, and the rotating rod 94 of the first half-thousand impeller 4 and the rotating rod 94 of the second half-thousand impeller 5 are respectively movably clamped with the second half-thousand impeller 5 5 cardboard 93 and first half thousand impeller 4's cardboard 93 extrusion contact, with first half thousand impeller 4 and the butt joint of second half thousand impeller 5, the cardboard 93 that bull stick 94 on both sides promoted the another side rotates and makes the fixture block 95 of bull stick 94 and the draw-in groove 96 of cardboard 93 realize the joint fixed simultaneously, when the joint is relieved to needs, open electric putter 92, make electric putter 92 promote the rotation of cardboard 93 to make fixture block 95 break away from the joint with cardboard 93 draw-in groove 96.

Referring to fig. 3, one end of a spring 97 is fixed inside the accommodating groove 91, and the other end of the spring 97 is fixedly connected to the electric push rod 92, so as to return to a certain pulling action after the electric push rod 92 rotates.

In the scheme, when the device is used, after the seamless steel tube 3 is fixed, the first motor 62 is started, the first motor 62 drives the bidirectional threaded rod 63 to rotate, so as to drive the fixing plate 65 and the fixing block 64 to move together, so that the first half-thousand impeller 4 and the second half-thousand impeller 5 are inserted into the inner wall of the seamless steel tube 3, the first half-thousand impeller 4 is butted with the second half-thousand impeller 5, the rotating rods 94 on two sides push the clamping plate 93 on the other side to rotate, and simultaneously, the clamping blocks 95 of the rotating rods 94 are clamped and fixed with the clamping grooves 96 of the clamping plate 93, when the clamping needs to be relieved, the electric push rod 92 is started, so that the electric push rod 92 pushes the clamping plate 93 to rotate, so that the clamping blocks 95 are separated from the clamping with the clamping grooves 96 of the clamping plate 93, after the first half-thousand impeller 4 and the second half-thousand impeller 5 are stably connected, the second motor 7 is started, the integral rotating wheel is driven to polish the seamless steel tube 3, the third motor 82 is started, the third motor 82 drives the driving rod 83 and the driving belt wheel 84 to rotate, under the rotating action of the belt, the driven belt wheel 86 and the belt drive the seamless steel tube 3 to rotate, the inner wall of the seamless steel tube is polished by matching with the second motor 7, the inner surface polishing device for the large-caliber high-strength corrosion-resistant thin-wall stainless steel seamless steel tube 3 realizes the effect that the first half-thousand impeller 4 and the second half-thousand impeller 5 are inserted into the seamless steel tube 3 under the effect of the translation mechanism 6, under the effect of the rotation mechanism 8 and the second motor 7, the relative rotation of the thousand impellers and the seamless steel tube 3 is realized, the polishing is more sufficient, under the effect of the locking mechanism 9, the two thousand impellers can not loosen in the rotation process, and compared with the prior art, the inner wall of the seamless steel tube 3 is effectively polished.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Intelligent inner face grinding device of corrosion-resistant stainless steel seamless steel pipe of heavy-calibre high strength, including portal frame (1), base (2), seamless steel pipe (3), first half thousand impeller (4) and half thousand impeller (5) of second, base (2) top is fixed with portal frame (1), base (2) top is located portal frame (1) bottom and is equipped with seamless steel pipe (3), seamless steel pipe (3) one side is equipped with first half thousand impeller (4), and seamless steel pipe (3) opposite side symmetry is equipped with half thousand impeller (5) of second, first half thousand impeller (4) and half thousand impeller (5) of second all rotate the contact with seamless steel pipe (3) inner wall, its characterized in that: a translation mechanism (6) capable of driving the first half-thousand impeller (4) and the second half-thousand impeller (5) to move towards and away from the seamless steel tube (3) is arranged in the base (2), a rotating mechanism (8) capable of driving the seamless steel tube (3) to rotate is arranged at the bottom of the portal frame (1), and a locking mechanism (9) capable of locking to realize synchronous rotation and grinding of the inner wall of the seamless steel tube (3) is arranged at the connecting end of the first half-thousand impeller (4) and the second half-thousand impeller (5);

the locking mechanism (9) comprises a containing groove (91), an electric push rod (92), a clamping plate (93), a rotating rod (94), a clamping block (95), a clamping groove (96) and a spring (97), wherein the containing groove (91) is formed in the connecting end of the first half-thousand impeller (4) and the second half-thousand impeller (5), the electric push rod (92) is rotatably installed in the containing groove (91), the clamping plate (93) is rotatably connected to the output end of the electric push rod (92), the clamping plate (93) is rotatably connected with the containing groove (91) through a rotating shaft, the rotating rod (94) is rotatably connected to one end, far away from the electric push rod (92), of the rotating rod (94), the clamping block (95) is fixed to the top of one end, far away from the clamping plate (93), of the clamping plate (93) is provided with the clamping groove (96) on the surface, the clamping block (95) of the first half-thousand impeller (4) is movably clamped with the clamping groove (96) of the second half-thousand impeller (5), and the clamping block (95) of the second half thousand impellers (5) is movably clamped with the clamping groove (96) of the second half thousand impellers (5), and the rotating rod (94) of the first half thousand impellers (4) and the rotating rod (94) of the second half thousand impellers (5) are respectively in extrusion contact with the clamping plate (93) of the second half thousand impellers (5) and the clamping plate (93) of the first half thousand impellers (4).

2. The intelligent inner surface grinding device for the large-caliber high-strength corrosion-resistant stainless steel seamless steel pipe according to claim 1, characterized in that: the translation mechanism (6) comprises a mounting plate (61), a first motor (62), a two-way threaded rod (63), a fixing block (64), a fixing plate (65), a sliding block (66), a limiting sleeve (67) and a sliding groove (68), wherein the mounting plate (61) is fixed on one side of the base (2), the first motor (62) is fixedly mounted at the top of the mounting plate (61), the sliding groove (68) is formed in the position, corresponding to the first motor (62), inside the base (2), of the base, the output end of the first motor (62) penetrates into the sliding groove (68) and is fixed with one end of the two-way threaded rod (63), the other end of the two-way threaded rod (63) is rotatably connected with the sliding groove (68) through a rotating shaft, the surface, close to the first motor (62), of the two-way threaded rod (63) is meshed with the fixing plate (65), and the surface, far away from the, two-way threaded rod (63) are located the surperficial symmetrical slip of fixed plate (65) and fixed block (64) and have cup jointed sliding block (66), sliding block (66) top is fixed with stop collar (67), and stop collar (67) and first half thousand impeller (4) and second half thousand impeller (5) are slip cup joint.

3. The intelligent inner surface grinding device for the large-caliber high-strength corrosion-resistant stainless steel seamless steel pipe according to claim 2, characterized in that: one side that seamless steel pipe (3) was kept away from in first half thousand impeller (4) and second half thousand impeller (5) is fixed with buffer layer (71), fixed block (64) top fixed mounting has second motor (7), and buffer layer (71) fixed connection of second motor (7) output and first half thousand impeller (4), and buffer layer (71) and fixed plate (65) of second half thousand impeller (5) rotate through the pivot and are connected.

4. The intelligent inner surface grinding device for the large-caliber high-strength corrosion-resistant stainless steel seamless steel pipe according to claim 3, characterized in that: fixed block (64) top is located second motor (7) both sides and fixed plate (65) both sides and all is fixed with connecting plate (10), and one side that connecting plate (10) are close to seamless steel pipe (3) all is fixed with the one end of electric telescopic handle (101), the other end of electric telescopic handle (101) through with stop collar (67) fixed connection.

5. The intelligent inner surface grinding device for the large-caliber high-strength corrosion-resistant stainless steel seamless steel pipe according to claim 2, characterized in that: fixed block (64) and fixed plate (65) both sides fixed mounting have pulley (841), and slide rail (681) have been seted up to the position that spout (68) both sides inner wall corresponds pulley (841), pulley (841) are sliding connection with slide rail (681).

6. The intelligent inner surface grinding device for the large-caliber high-strength corrosion-resistant stainless steel seamless steel pipe according to claim 1, characterized in that: the rotating mechanism (8) comprises a packaging box (81), a third motor (82), a driving rod (83), a driving belt wheel (84), a fixing frame (85) and a driven belt wheel (86), the packaging box (81) is fixed at the bottom of the portal frame (1), the third motor (82) is fixedly installed on the inner wall of one side of the packaging box (81), the driving rod (83) is fixed at the output end of the third motor (82), one end, far away from the third motor (82), of the driving rod (83) is rotatably connected with the inner wall of the packaging box (81) through a rotating shaft, the driving rod (83) is fixedly sleeved with the driving belt wheel (84) on the surface at equal intervals, the fixing frame (85) is symmetrically fixed at the bottom of the seamless steel pipe (3) at the top of the base (2), the driven belt wheel (86) is rotatably sleeved on the surface of the fixing frame (85), and the driven belt wheel (86) is in sliding contact with the seamless steel pipe (3), the driving belt wheel (84) is in transmission connection with the driven belt wheel (86) through a belt.

7. The intelligent inner surface grinding device for the large-caliber high-strength corrosion-resistant stainless steel seamless steel pipe according to claim 1, characterized in that: the holding groove (91) is internally fixed with one end of a spring (97), and the other end of the spring (97) is fixedly connected with the electric push rod (92).