CN114290003A - Method for processing high-hardness stainless steel pipe - Google Patents
Method for processing high-hardness stainless steel pipe Download PDFInfo
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- CN114290003A CN114290003A CN202111679724.XA CN202111679724A CN114290003A CN 114290003 A CN114290003 A CN 114290003A CN 202111679724 A CN202111679724 A CN 202111679724A CN 114290003 A CN114290003 A CN 114290003A
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Abstract
The application relates to the technical field of steel pipe processing, in particular to a processing method of a high-hardness stainless steel pipe, which comprises the steps of preparing a blank, and conveying the steel pipe to a workbench by a feeding device; cold rolling, wherein a cold rolling device is used for cold rolling the steel pipe; deoiling, namely performing deoiling treatment on the surface of the steel pipe by using a deoiling device; cutting the end, wherein the end of the steel pipe is cut off by a cutting device; cold drawing, wherein the cold drawing device performs cold drawing treatment on the steel pipe; pickling, namely removing oxide scales and rusty materials on the surface of the steel pipe by using a pickling device; sizing and straightening, wherein the diameter and the verticality of the steel pipe are adjusted by a straightening device; polishing, the grinding device polishes the outer wall and the inner wall of the steel pipe, the problem that the inner wall of the steel pipe is inconvenient to polish in the traditional steel pipe machining method is solved, and the effect of conveniently polishing the inner wall of the steel pipe can be achieved.
Description
Technical Field
The application relates to the technical field of steel pipe processing, in particular to a processing method of a high-hardness stainless steel pipe.
Background
The stainless steel pipe is a round, square or rectangular steel material with a hollow cross section and no seam at the periphery. Stainless steel pipes can be classified into seamless steel pipes and welded pipes according to production methods. The seamless steel pipe is made up by making steel ingot or solid pipe blank into tubular billet through perforation, then hot rolling, cold rolling or cold drawing.
At present, the production mode of the traditional seamless steel pipe is generally manufactured by a cold drawing or cold rolling process, and the inner wall of the steel pipe is rough and does not meet the process requirements due to burrs on the inner wall of the cold-rolled steel pipe, and the inner wall of the steel pipe is often inconvenient to polish and polish.
Disclosure of Invention
In order to conveniently polish the inner wall of the steel pipe, the application provides a machining method of a high-hardness stainless steel pipe.
The application provides a processing method of a high-hardness stainless steel pipe, which adopts the following technical scheme:
a processing method of a high-hardness stainless steel pipe comprises the following steps:
preparing a blank, conveying a steel pipe by a feeding device, and conveying the steel pipe to a workbench;
cold rolling, wherein the feeding device conveys the steel pipe to a cold rolling device to perform cold rolling on the steel pipe;
deoiling, namely conveying the cold-rolled steel pipe to a deoiling device by using a feeding device, and deoiling the surface of the steel pipe;
cutting the head, conveying the steel pipe to a cutting device by a feeding device, and cutting off the end part of the cold-rolled steel pipe;
cold drawing, wherein the feeding device conveys the cut steel pipe to a cold drawing device, and the cold drawing device performs cold drawing treatment on the steel pipe;
acid washing, wherein a pickling device cleans the steel pipe after cold drawing to remove oxide skin and rust on the surface of the steel pipe;
sizing and straightening, wherein the diameter and the verticality of the cold-drawn steel pipe are adjusted by a straightening device;
and (5) polishing, wherein the outer wall and the inner wall of the straightened steel pipe are polished by a polishing device.
By adopting the technical scheme, the blank preparation step is to convey the steel pipe through the feeding device, so that the unprocessed steel pipe is conveniently conveyed to a working area, the cold rolling step is to carry out cold rolling treatment on the steel pipe through the cold rolling step, reducing the diameter and reducing the wall of the steel pipe to facilitate the preliminary forming of the steel pipe, in the deoiling step, deoiling the cold-rolled steel pipe by a deoiling device, and cutting the head, cutting off the end of the cold-rolled steel pipe by a cutting device, cold-drawing the steel pipe by a cold-drawing device in the cold-drawing step, expanding the steel pipe, pickling, removing impurities such as oxide skin on the surface of the steel pipe after cold drawing by an acid cleaning device, and in the step of sizing and straightening, the steel pipe after pickling is straightened by the straightening device, and in the polishing step, the inner wall and the outer wall of the steel pipe are polished by the polishing device, so that the smoothness of the surface of the steel pipe is improved conveniently.
In a specific possible embodiment, the grinding device in the grinding step comprises an external grinding mechanism, the external grinding mechanism comprises an external grinding motor and a grinding wheel, the external grinding motor is erected on the workbench, the grinding wheel is fixedly installed on a driving shaft of the external grinding motor, and the grinding wheel grinds the steel pipe along the length direction of the steel pipe.
Through adopting above-mentioned technical scheme, set up outer grinding mechanism, conveniently grind the polishing to the steel pipe outer wall through outer grinding mechanism, set up outer grinding motor, conveniently drive outer grinding mechanism work, set up the emery wheel, conveniently outer grinding mechanism polishes to the steel pipe outer wall through the emery wheel, with emery wheel fixed mounting in the drive shaft of outer grinding motor, conveniently outer grinding motor drive emery wheel rotates to polish the steel pipe.
In a specific possible embodiment, the grinding device further comprises an internal grinding mechanism, the internal grinding mechanism comprises an internal grinding assembly, the internal grinding assembly comprises a grinding roller, and the grinding roller slides on the inner wall of the steel pipe.
Through adopting above-mentioned technical scheme, grind the mechanism in setting up, conveniently grind the steel pipe inner wall through interior grinding mechanism, improve the smoothness of steel pipe inner wall, grind the subassembly in setting up, for interior grinding mechanism provides the execution unit to polish to the inner wall of steel pipe, set up and grind the roller, conveniently slide at the steel pipe inner wall through driving grinding roller, thereby polish to the inner wall of steel pipe.
In a specific implementation scheme, the internal grinding assembly further comprises a plurality of abrasive belts, the grinding roller is provided with a mounting groove, the side wall of the grinding roller is provided with a plurality of sliding holes, the sliding holes are distributed on the surface of the grinding roller in the circumferential direction, one end of each abrasive belt extends into the mounting groove from the corresponding sliding hole, the other end of each abrasive belt extends into the mounting groove from the end part of the grinding roller and is fixedly connected with one end, located at the corresponding sliding hole, of each abrasive belt, and the surface of each abrasive belt is abutted against the inner wall of the steel pipe.
Through adopting the above-mentioned technical scheme, set up the abrasive band, conveniently polish to steel pipe inner wall through the abrasive band, set up a plurality of abrasive bands, the abrasive band that makes things convenient for on grinding the roller is polished to steel pipe inner wall different positions, improve the smoothness of steel pipe inner wall, set up the slide opening, make things convenient for the abrasive band location to install on grinding the roller, set up a plurality of slide openings, a plurality of abrasive bands of easy to assemble, arrange the slide opening along grinding roller circumferencial direction, the abrasive band of convenient to install on grinding the roller is polished to different positions on the steel pipe inner wall circumference simultaneously, set up the mounting groove, the installation of the abrasive band of being convenient for, stretch into the mounting groove with the one end of abrasive band from the slide opening, the other end stretches into the mounting groove from the tip of grinding the roller, and be located the one end fixed connection of slide opening with the abrasive band, the slide of being convenient for drives the surface slip of abrasive band at grinding the roller, thereby the effect of polishing is improved.
In a specific embodiment, the internal grinding assembly further comprises a sliding plate fixedly connected with the abrasive belt in the mounting groove, and the sliding plate drives the abrasive belt to slide in the mounting groove.
Through adopting above-mentioned technical scheme, set up the slide, conveniently drive the abrasive band through the slide and slide on grinding the roller to improve the efficiency of polishing, with slide and abrasive band fixed connection, be convenient for improve the slide and drive the gliding stability of abrasive band.
In a specific possible embodiment, the internal grinding mechanism further comprises a driving assembly, the driving assembly comprises an air cylinder, the air cylinder is arranged in the installation groove of the grinding roller along the axial direction of the grinding roller, and a piston rod of the air cylinder is fixedly connected with the end face, facing the air cylinder, of the sliding plate.
Through adopting above-mentioned technical scheme, set up drive assembly, the actuating element work in the subassembly is ground in the convenient drive through drive assembly, set up the cylinder, the convenience slides in grinding the roller through cylinder drive slide, thereby it is reciprocal slip to drive the abrasive band along grinding the roller surface, set up the cylinder along the axis direction of grinding the roller, make things convenient for the cylinder to drive the slide and slide along the axis direction of grinding the roller and slide, thereby improve the gliding stability of slide, with piston rod and slide fixed connection, make things convenient for the cylinder to drive the slide and slide.
In a specific possible implementation scheme, the driving assembly further comprises a third motor, a rotating shaft is fixedly connected to a driving shaft of the third motor, one end, away from the third motor, of the rotating shaft is fixedly connected with the grinding roller, a plurality of ball grooves are formed in one end, away from the abrasive belt, of the grinding roller, the ball grooves are arranged along the circumferential direction of the grinding roller, and balls are arranged in the ball grooves.
Through adopting above-mentioned technical scheme, set up motor three, grind the subassembly rotation in the convenient three drive of motor to grind the effect of polishing of subassembly in improving, set up the pivot, make things convenient for motor three to drive through the pivot and grind the roller and rotate, with the fixed connection of pivot with grinding roller, conveniently improve motor three's transmission efficiency, set up the ball groove, be convenient for install the ball, set up the ball, conveniently reduce and grind the roller at the gliding frictional force of steel pipe inner wall.
In a specific practical implementation scheme, the driving assembly further comprises a mounting plate and a push rod, the mounting plate is mounted at one end of the workbench, the push rod is slidably mounted on the mounting plate, and one end of the push rod is fixedly connected with the base of the motor III.
Through adopting above-mentioned technical scheme, set up the mounting panel, spare part among the easy to assemble drive assembly sets up the push rod, and the mill subassembly removes along the steel pipe inner wall in conveniently driving through the push rod to polish the steel pipe inner wall, with push rod slidable mounting on the mounting panel, the convenience provides the support through the slip of mounting panel to the push rod.
In a specific practical implementation scheme, the driving assembly comprises a gear and a second motor, the gear is rotatably installed on the installation plate, the second motor is arranged on the installation plate and close to the gear, a driving gear is installed on a driving shaft of the second motor, a rack is arranged on the push rod, and the rack on the push rod is meshed with the gear.
Through adopting above-mentioned technical scheme, set up the gear, the convenience drives the push rod through the gear and removes to grind the subassembly and remove in promoting, set up motor two, the convenience rotates through two drive gear of motor, thereby drives the push rod and removes, sets up the rack, and the convenience drives the push rod through rack and pinion meshing's mode and removes, with the one end fixed connection of push rod and grinding roller, is convenient for improve the stability that the push rod drove the removal of interior mill subassembly.
In a specific practical implementation scheme, the driving assembly comprises a first motor and a screw rod, the screw rod is rotatably installed on the workbench and close to the installation plate, a sliding rod is arranged on the workbench and close to the screw rod, one end of the installation plate is in threaded fit with the screw rod, the other end of the installation plate is sleeved on the sliding rod, the first motor is erected on the bottom surface of the workbench, and a driving shaft of the first motor is fixedly connected with one end of the screw rod.
Through adopting the above technical scheme, set up motor one, conveniently drive assembly work through motor one, set up the lead screw, the height of mounting panel is adjusted through lead screw two to the convenience, thereby adjust the height of interior grinding assembly, thereby adapt to not unidimensional steel pipe, set up the slide bar, make things convenient for the slide bar to lead to the slip of mounting panel, with mounting panel screw-thread fit on the lead screw, make things convenient for the lead screw to drive the mounting panel and remove, thereby highly adjusting the mounting panel, with the drive shaft of motor one and the one end fixed connection of lead screw, conveniently improve the driven efficiency of motor one.
In summary, the present application includes at least one of the following benefits:
this application is through setting up interior grinding machine and being constructed, conveniently polishes the inner wall of steel pipe.
This application is through setting up drive assembly, when mill the subassembly and remove in the steel pipe inner wall in convenient drive, mill the subassembly rotation in the drive, grind the efficiency that the subassembly was polished in improving.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present application.
Fig. 2 is a cross-sectional view of an embodiment of the present application.
FIG. 3 is a cross-sectional view of an abrasive roll in an internal grinding assembly.
FIG. 4 is an exploded view of the grinding roller in the internal grinding assembly.
Fig. 5 is an enlarged view at a in fig. 2.
Description of reference numerals:
1. a work table; 2. a polishing device; 3. An internal grinding mechanism; 31. an internal grinding assembly; 311. a grinding roller; 3111. a ball groove; 3112. a slide hole; 312. a ball bearing; 313. an abrasive belt; 314. a slide plate; 32. a drive assembly; 321. a cylinder; 322. a screw rod; 323. Mounting a plate; 3231. a sliding sleeve; 3232. a fixing plate; 324. a push rod; 3241. a rack; 325. a gear; 326. a third motor; 327. a rotating shaft; 328. a second motor; 329. a first motor; 4. an external grinding mechanism; 41. a grinding wheel; 42. an external grinding motor; 5. and (5) steel pipes.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The embodiment of the application discloses a method for processing a high-hardness stainless steel pipe, and with reference to fig. 1, a blank is prepared, a feeding device conveys the steel pipe, and the steel pipe is conveyed to a workbench 1;
cold rolling, wherein the feeding device conveys the steel pipe to a cold rolling device, cold rolling is carried out on the steel pipe, and the diameter and the wall of the steel pipe are reduced;
deoiling, namely conveying the cold-rolled steel pipe to a deoiling device by using a feeding device, and deoiling the surface of the steel pipe;
cutting the head, conveying the steel pipe to a cutting device by a feeding device, and cutting off the end part of the cold-rolled steel pipe;
cold drawing, wherein the feeding device conveys the steel pipe subjected to end cutting to a cold drawing device, and the cold drawing device performs cold drawing treatment on the steel pipe and performs pipe expansion treatment on the steel pipe;
acid washing, wherein a pickling device cleans the steel pipe after cold drawing to remove oxide skin and rust on the surface of the steel pipe;
sizing and straightening, wherein the diameter and the verticality of the cold-drawn steel pipe are adjusted by a straightening device;
and (5) polishing, wherein the polishing device 2 is used for polishing the outer wall and the inner wall of the straightened steel pipe.
Referring to fig. 1, the polishing device 2 includes an outer polishing mechanism 4 and an inner polishing mechanism 3, the inner polishing mechanism 3 is mounted at one end of the worktable 1, and the outer polishing mechanism 4 is mounted at one end of the worktable 1. Referring to fig. 2, the external grinding mechanism 4 includes a grinding wheel 41, the grinding wheel 41 is rotatably mounted on the table 1, an axis of the grinding wheel 41 is perpendicular to an axis of the steel pipe, an external grinding motor 42 is mounted at one end of the grinding wheel 41, a driving shaft of the external grinding motor 42 is fixedly connected to a rotating shaft of the grinding wheel 41, a circumferential surface of the grinding wheel 41 abuts against an outer wall of the steel pipe, and the grinding wheel 41 is driven by the external grinding motor 42 to grind and polish the outer wall of the steel pipe in motion.
Referring to fig. 2, the internal grinding mechanism 3 includes an internal grinding assembly 31 and a driving assembly 32, the internal grinding assembly 31 is connected to the driving assembly 32 through a rotating shaft 327, and the driving assembly 32 drives the internal grinding assembly 31 to slide in the inner wall of the steel pipe and grind the inner wall of the steel pipe.
Referring to fig. 3 and 4, the internal grinding assembly 31 further includes a grinding roller 311, a sliding plate 314 and an abrasive belt 313, a mounting groove is formed in the grinding roller 311, the sliding plate 314 slides in the mounting groove, an outer wall of the sliding plate 314 abuts against an inner wall of the grinding roller 311, a plurality of sliding holes 3112 are formed in the circumferential direction of the grinding roller 311, one end of the abrasive belt 313 penetrates through the sliding holes 3112 and extends into the mounting groove, the other end of the abrasive belt 313 extends into the mounting groove from an end of the grinding roller 311 and is fixedly connected with one end of the abrasive belt 313 close to the sliding holes 3112, the sliding plate 314 is fixedly connected with the abrasive belt 313, and the abrasive belt 313 is driven by the sliding plate 314 to slide on the grinding roller 311 in a reciprocating manner.
Referring to fig. 3 and 4, the driving assembly 32 includes an air cylinder 321, a cylinder body of the air cylinder 321 is fixedly installed at the bottom of the installation groove of the grinding roller 311, a piston rod of the air cylinder 321 is fixedly connected to an end surface of the sliding plate 314 facing the air cylinder 321, and the air cylinder 321 drives the sliding plate 314 to slide back and forth in the grinding roller 311, so as to drive the abrasive belt 313 to slide on the grinding roller 311. The surface of the circumferential direction of the grinding roller 311 is provided with a plurality of ball grooves 3111 near the cylinder 321, the balls 312 are embedded in the ball grooves 3111, the balls 312 are abutted against the inner wall of the steel pipe, one end of the grinding roller 311 near the cylinder 321 is fixedly connected with a rotating shaft 327, and the rotating shaft 327 drives the grinding roller 311 to slide and rotate on the inner wall of the steel pipe.
Referring to fig. 5, the driving assembly 32 further includes a mounting plate 323 and a screw rod 322 vertically and rotatably mounted on the working platform 1, a sliding rod is mounted on the working platform 1 near the screw rod 322, one end of the mounting plate 323 is in threaded fit with the screw rod 322, and the other end is sleeved on the sliding rod.
Referring to fig. 5, the driving assembly 32 further includes a gear 325 and a push rod 324, one side of the mounting plate 323 is fixedly connected with an L-shaped fixing plate 3232, a sliding sleeve 3231 is fixedly mounted on the fixing plate 3232, one end of the sliding sleeve 3231 sequentially passes through the fixing plate 3232 and the mounting plate 323, the gear 325 is rotatably mounted in the sliding sleeve 3231, the push rod 324 is slidably mounted in the sliding sleeve 3231, a rack 3241 is embedded on one surface of the push rod 324 facing the gear 325, the gear 325 is engaged with the rack 3241, a second motor 328 is mounted on the fixing plate 3232 near the gear 325, the gear 325 is sleeved on a driving shaft of the second motor 328, and the gear 325 is rotated by the second motor 328 to drive the push rod 324 to move.
Referring to fig. 5, the driving assembly 32 further includes a third motor 326, a base of the third motor 326 is fixedly connected to one end of the push rod 324 far away from the mounting plate 323, a driving shaft of the third motor 326 is fixedly connected to the rotating shaft 327, and the rotating shaft 327 is driven to rotate by the third motor 326.
The working principle of the embodiment of the application is as follows: the outer wall of the steel pipe is polished by the outer grinding mechanism 4 in the grinding device 2, the inner wall of the steel pipe is polished by the inner grinding mechanism 3, the driving component 32 in the inner grinding mechanism 3 drives the grinding roller 311 in the inner grinding component 31 to slide on the inner wall of the steel pipe through the push rod 324, so that the abrasive belt 313 on the grinding roller 311 polishes the inner wall of the steel pipe, meanwhile, the rotating shaft 327 is driven to rotate through the motor three 326, the grinding roller 311 is driven to slide along the circumferential direction of the inner wall of the steel pipe, the abrasive belt 313 is uniformly polished on the inner wall of the steel pipe, the sliding plate 314 is driven to slide in the mounting groove of the grinding roller 311 through the air cylinder 321 in the grinding roller 311, the abrasive belt 313 is driven to slide on the surface of the grinding roller 311 in a reciprocating mode, and polishing of the abrasive belt 313 is achieved.
The above is a preferred embodiment of the present application, and the scope of protection of the present application is not limited by the above, so: all equivalent changes in the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A processing method of a high-hardness stainless steel pipe is characterized by comprising the following steps: the method comprises the following steps:
preparing a blank, conveying a steel pipe by a feeding device, and conveying the steel pipe to a workbench (1);
cold rolling, wherein the feeding device conveys the steel pipe to a cold rolling device to perform cold rolling on the steel pipe;
deoiling, namely conveying the cold-rolled steel pipe to a deoiling device by using a feeding device, and deoiling the surface of the steel pipe;
cutting the head, conveying the steel pipe to a cutting device by a feeding device, and cutting off the end part of the cold-rolled steel pipe;
cold drawing, wherein the feeding device conveys the cut steel pipe to a cold drawing device, and the cold drawing device performs cold drawing treatment on the steel pipe;
acid washing, wherein a pickling device cleans the steel pipe after cold drawing to remove oxide skin and rust on the surface of the steel pipe;
sizing and straightening, wherein the diameter and the verticality of the cold-drawn steel pipe are adjusted by a straightening device;
and (5) polishing, wherein the outer wall and the inner wall of the straightened steel pipe are polished by a polishing device (2).
2. The method for processing a high-hardness stainless steel pipe according to claim 1, wherein: grinding device (2) in the step of polishing is including grinding mechanism (4) outward, grind mechanism (4) outward including grinding motor (42) and emery wheel (41), grind motor (42) outward and erect on workstation (1), emery wheel (41) fixed mounting is in grinding motor's (42) drive shaft outward, emery wheel (41) are polished the steel pipe along steel pipe length direction.
3. The method for processing a high-hardness stainless steel pipe according to claim 1, wherein: grinding device (2) still include interior mill mechanism (3), interior mill mechanism (3) are including interior mill subassembly (31), interior mill subassembly (31) are including grinding roller (311), grinding roller (311) slide at the steel pipe inner wall.
4. The method for processing a high-hardness stainless steel pipe according to claim 3, wherein: the internal grinding component (31) further comprises a plurality of abrasive belts (313), a mounting groove is formed in the grinding roller (311), a plurality of sliding holes (3112) are formed in the side wall of the grinding roller (311), the sliding holes (3112) are distributed on the surface of the grinding roller (311) in the circumferential direction, one end of each abrasive belt (313) extends into the mounting groove from the corresponding sliding hole (3112), the other end of each abrasive belt extends into the mounting groove from the end portion of the grinding roller (311) and is fixedly connected with one end, located at the corresponding sliding hole (3112), of each abrasive belt (313), and the surface of each abrasive belt (313) is abutted against the inner wall of the steel pipe.
5. The method for processing a high-hardness stainless steel pipe according to claim 4, wherein: the internal grinding assembly (31) further comprises a sliding plate (314), the sliding plate (314) is fixedly connected with a grinding belt (313) located in the mounting groove, and the sliding plate (314) drives the grinding belt (313) to slide in the mounting groove.
6. The method for processing a high-hardness stainless steel pipe according to claim 5, wherein: interior mill mechanism (3) still includes drive assembly (32), drive assembly (32) include cylinder (321), cylinder (321) set up in the mounting groove of grinding roller (311) along the axis direction of grinding roller (311), the piston rod of cylinder (321) and slide (314) are towards the terminal surface fixed connection of cylinder (321).
7. The method for processing a high-hardness stainless steel pipe according to claim 6, wherein: the driving assembly (32) further comprises a motor III (326), a rotating shaft (327) is fixedly connected to a driving shaft of the motor III (326), one end, far away from the motor III (326), of the rotating shaft (327) is fixedly connected with the grinding roller (311), a plurality of ball grooves (3111) are formed in one end, far away from the abrasive belt (313), of the grinding roller (311), the ball grooves (3111) are arranged along the circumferential direction of the grinding roller (311), and balls (312) are arranged in the ball grooves (3111).
8. The method for processing a high-hardness stainless steel pipe according to claim 7, wherein: drive assembly (32) still include mounting panel (323) and push rod (324), the one end at workstation (1) is installed in mounting panel (323), push rod (324) slidable mounting is on mounting panel (323), the frame fixed connection of the one end and motor three (326) of push rod (324).
9. The method for processing a high-hardness stainless steel pipe according to claim 8, wherein: drive assembly (32) include gear (325) and motor two (328), gear (325) rotate to be installed on mounting panel (323), it is equipped with motor two (328) to be close to gear (325) department on mounting panel (323), install drive gear (325) on the drive shaft of motor two (328), be equipped with rack (3241) on push rod (324), rack (3241) on push rod (324) and gear (325) meshing.
10. The method for processing a high-hardness stainless steel pipe according to claim 8, wherein: the driving assembly (32) comprises a first motor (329) and a screw rod (322), the screw rod (322) is rotatably installed on the workbench (1) and is close to the installation plate (323), a sliding rod is arranged on the workbench (1) and is close to the screw rod (322), one end of the installation plate (323) is in threaded fit with the screw rod (322), the other end of the installation plate is sleeved on the sliding rod, the first motor (329) is erected on the bottom surface of the workbench (1), and a driving shaft of the first motor (329) is fixedly connected with one end of the screw rod (322).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111679724.XA CN114290003B (en) | 2021-12-31 | 2021-12-31 | Method for processing high-hardness stainless steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111679724.XA CN114290003B (en) | 2021-12-31 | 2021-12-31 | Method for processing high-hardness stainless steel pipe |
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| CN114290003A true CN114290003A (en) | 2022-04-08 |
| CN114290003B CN114290003B (en) | 2023-03-03 |
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| CN202111679724.XA Active CN114290003B (en) | 2021-12-31 | 2021-12-31 | Method for processing high-hardness stainless steel pipe |
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- 2021-12-31 CN CN202111679724.XA patent/CN114290003B/en active Active
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| CN114290003B (en) | 2023-03-03 |
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