CN112440163B - Large-diameter threaded steel pipe forming processing method - Google Patents
Large-diameter threaded steel pipe forming processing method Download PDFInfo
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- CN112440163B CN112440163B CN202011277275.1A CN202011277275A CN112440163B CN 112440163 B CN112440163 B CN 112440163B CN 202011277275 A CN202011277275 A CN 202011277275A CN 112440163 B CN112440163 B CN 112440163B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/16—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding peculiarly surfaces, e.g. bulged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/363—Single-purpose machines or devices for grinding surfaces of revolution in situ
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Abstract
The invention relates to a large-caliber threaded steel pipe forming and processing method, which mainly comprises the following steps of preparing materials, performing melt forming, performing extrusion forming, performing thread processing, performing fine processing and the like, wherein used steel pipe fine processing equipment comprises a bottom plate, a clamping device, a jacking device and a polishing device; b, when the outer wall of the existing large-caliber spiral steel pipe is polished, the outer wall of the existing large-caliber spiral steel pipe cannot be uniformly polished, and the subsequent use of the large-caliber spiral steel pipe is influenced.
Description
Technical Field
The invention relates to the technical field of steel pipe forming, in particular to a forming and processing method of a large-diameter threaded steel pipe.
Background
The large-caliber threaded steel pipe generally refers to a threaded steel pipe with the diameter larger than 1 meter, the spiral steel pipe is mainly applied to tap water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction, is one of twenty key products developed in China, and needs to be subjected to fine grinding operation on the surface of the large-caliber threaded steel pipe after production in order to not influence subsequent use of the large-caliber threaded steel pipe.
However, the following problems exist in the prior large-caliber threaded steel pipe polishing process, namely a, when the traditional large-caliber threaded steel pipe is polished, the outer wall of the traditional large-caliber threaded steel pipe needs to be stably clamped and then polished by using a polishing device, and as the outer wall cannot be polished once during clamping, the polishing can be completed by polishing for many times, so that the polishing efficiency of the large-caliber threaded steel pipe is reduced; b, when the outer wall of the existing large-caliber threaded steel pipe is polished, the outer wall of the existing large-caliber threaded steel pipe cannot be uniformly polished, and the subsequent use of the large-caliber threaded steel pipe is influenced.
Disclosure of Invention
In order to solve the problems, the invention provides a method for forming and processing a large-caliber threaded steel pipe, which can solve the problems existing in the grinding of the large-caliber threaded steel pipe.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: a large-caliber threaded steel pipe forming and processing method mainly comprises the following steps:
preparing materials, namely preparing raw materials required by forming the threaded steel pipe to obtain raw materials for producing the threaded steel pipe;
step two, performing melt forming, namely performing melt forming operation on the raw material for producing the threaded steel pipe obtained in the step one to obtain a steel ingot;
step three, extrusion molding, namely carrying out extrusion molding operation on the steel ingot obtained in the step two to obtain an extrusion molded steel pipe;
step four, thread machining, namely performing internal thread machining operation on the extruded steel pipe obtained in the step three to obtain a steel pipe with finished thread machining;
and step five, fine treatment, namely placing the steel pipe which is subjected to the thread machining and is obtained in the step four on steel pipe fine treatment equipment for fine treatment to obtain the steel pipe which is subjected to the fine treatment.
The steel pipe fine treatment equipment used in the steps comprises a bottom plate, a clamping device, a jacking device and a polishing device, wherein the jacking device is arranged in the middle of the bottom plate, the clamping device is symmetrically arranged on the bottom plate in the left-right direction, and the polishing device is arranged on the bottom plate.
The clamping device comprises a first motor, a transmission threaded rod, a sliding plate, a second motor, a clamping round rod, a third motor, a power gear, a driven round rod, a driven gear, a sliding round rod, a straight plate, a sliding rod, an arc panel, a rubber plate, a positioning cylinder and a positioning rod, wherein sliding grooves are symmetrically formed in the left end and the right end of the bottom plate, the sliding plate is installed in the sliding grooves in a sliding fit mode, a transmission threaded groove is formed in the lower end of the sliding plate, a groove is formed in the outer wall of the outer end of the sliding groove, the first motor is installed on the inner wall of the groove, the transmission threaded rod is installed at the output end of the first motor and is installed in the transmission threaded groove in a threaded engagement mode, the second motor is installed on the outer side of the upper end of the sliding plate, the clamping round rod penetrates through the sliding plate, a clamping round groove is formed in the clamping round rod, and sliding holes are evenly formed in the middle of the inner wall of the clamping round groove along the circumferential direction, a sliding rod is arranged in the sliding hole in a sliding fit mode, a straight plate is arranged at the inner end of the sliding rod, a square groove is formed in the straight plate, an arc panel is arranged at the outer end of the sliding rod, a rubber plate is arranged on the arc panel, a third motor is arranged on the inner wall of the clamping circular groove, a power gear is arranged at the output end of the third motor, a driven circular rod is arranged on the inner wall of the clamping circular groove along the circumferential direction of the clamping circular groove through a bearing, a driven gear is arranged on the driven circular rod, the driven gear and the power gear are meshed with each other for use, a sliding circular rod is eccentrically arranged on the outer wall of the driven gear and is arranged in the square groove in a sliding fit mode, a positioning cylinder is arranged between adjacent driven circular rods on the inner wall of the clamping circular groove, a positioning rod is arranged at the output end of the positioning cylinder, the positioning rod and the power gear are matched with each other for use, and can stably clamp a large-caliber threaded steel pipe, the grinding device provides convenience for grinding the large-caliber threaded steel pipe.
The polishing device comprises a U-shaped plate, a U-shaped rod, a lower pressing plate, a propping spring rod, a propping plate, a return spring rod, a polishing round roller, a square plate, a fourth motor, a cam, a connecting round rod, a positioning gear, a positioning bidirectional cylinder and a positioning plate, wherein the U-shaped plate is arranged on the bottom plate and positioned outside a chute, penetrating grooves are symmetrically formed in the upper end of the U-shaped plate in the left-right direction, the U-shaped rod is arranged in the penetrating grooves in a sliding fit manner, the return spring rods are uniformly arranged on the outer wall of the lower end of the U-shaped rod, the lower end of each return spring rod is connected to the U-shaped plate, the lower pressing plate is arranged at the lower end of the U-shaped rod, the propping spring rods are uniformly arranged on the lower pressing plate, a cambered groove is formed in the lower end of the cambered groove in the circumferential direction of the cambered groove, the polishing round rod is arranged between the inner walls of the left end and the right end of the propping groove through a bearing, install the round roller of polishing on the round bar of polishing, the square plate is installed to symmetry around the U template upper end, be located and install No. four motors on the square plate outer wall of U template rear end, No. four motor output passes the square plate and installs the cam, install on the cam front end outer wall and connect the round bar, it passes the square plate that is located the U template upper end to connect the round bar front end and installs the positioning gear, the centre gripping groove has been seted up to bilateral symmetry on the square plate outer wall that is located the U template upper end, be located and install the two-way cylinder of location on the square plate outer wall of U template upper end, the locating plate is installed to location two-way cylinder output bilateral symmetry, and the locating plate passes through sliding fit's mode and installs in the centre gripping inslot, can carry out comprehensive polishing operation to heavy-calibre screw steel pipe, the efficiency and the quality that heavy-calibre screw steel pipe polished have been improved.
As a preferred technical scheme of the invention, the jacking device comprises a fifth motor, a power threaded rod, a jacking plate, a jacking block, a sleeve, a loop bar, a buffering spring rod, a clamping plate, a resisting round rod and a resisting round roller, wherein the left end and the right end of the bottom plate are symmetrically provided with clamping grooves, the jacking plate is arranged in the clamping grooves in a sliding fit manner, the lower end of the jacking plate is provided with a power threaded groove, the outer wall of the rear end of the bottom plate is bilaterally symmetrically provided with the fifth motor, the output end of the fifth motor penetrates through the clamping grooves and is provided with the power threaded rod, the power threaded rod is arranged in the power threaded groove in a threaded engagement manner, the sleeve is symmetrically arranged on the bottom plate at the inner side of the clamping grooves, the loop bar is arranged in the sleeve in a sliding fit manner, the buffering spring rod is arranged at the lower end of the loop bar, the lower end of the buffering spring rod is connected to the bottom plate, the clamping plate is arranged at the upper end of the loop bar, the jacking block is symmetrically arranged on the outer wall of the lower end of the clamping plate at the left end of the left end and right, cardboard upper end is provided with the arcuation groove, has evenly seted up the jacking groove along its circumference direction on the arcuation inslot wall, installs through the bearing between the both ends inner wall about the jacking groove and supports tight round bar, supports to install on the tight round bar and support tight round roller, installs on the cardboard and supports tight mechanism, can carry out stable bearing operation to heavy-calibre screw steel pipe, has guaranteed the stability that heavy-calibre screw steel pipe polished.
As a preferred technical scheme of the invention, the tight-supporting mechanism comprises a tight-supporting bidirectional cylinder, an oblique angle plate, flat plates, a positioning round rod, a positioning spring rod, a V-shaped plate, a rotating round rod and a rotating round roller, the outer walls of the front end and the rear end of the clamping plate are symmetrically provided with the flat plates from left to right, the positioning round rod is arranged between the inner walls of the flat plates through a bearing, the V-shaped plate is arranged on the positioning round rod, the upper end of the V-shaped plate is provided with a rotating groove, the rotating round rod is arranged between the inner walls of the left end and the right end of the rotating groove through a bearing, the rotating round rod is provided with the rotating round roller, the positioning spring rod is uniformly arranged on the inner wall of the lower end of the V-shaped plate, the inner end of the positioning spring rod is connected to the outer walls of the front end and the rear end of the clamping plate, the lower end of the V-shaped plate is provided with an oblique groove, the tight-supporting bidirectional cylinder is arranged at the output end of the tight-supporting bidirectional cylinder, the oblique angle plate and the oblique angle plate are matched with the oblique groove, the rotary round roller can stably abut against the outer wall of the large-caliber threaded steel pipe, and the large-caliber threaded steel pipe is comprehensively polished.
As a preferred technical scheme of the invention, the inner end of the positioning plate is provided with an arc-shaped groove, the inner wall of the arc-shaped groove is uniformly provided with tooth grooves along the circumferential direction of the arc-shaped groove, and the tooth grooves and the positioning gear are mutually matched for use, so that the positioning plate can perform stable positioning operation on the positioning gear.
As a preferred technical solution of the present invention, the top end of the jacking plate is inclined, the bottom end of the jacking block is inclined, and the inclined surface of the top end of the jacking plate and the inclined surface of the bottom end of the jacking block are used in cooperation with each other, so that the jacking plate can drive the jacking block to perform stable lifting operation.
As a preferred technical scheme of the invention, the lower end of the bottom plate is uniformly provided with the supporting rods, so that the polishing stability of the large-caliber threaded steel pipe is improved.
The invention has the beneficial effects that:
1. the invention can solve the following problems existing in the prior large-caliber threaded steel pipe polishing, a, when the traditional large-caliber threaded steel pipe is polished, the outer wall of the traditional large-caliber threaded steel pipe needs to be stably clamped, then a polishing device is used for polishing the traditional large-caliber threaded steel pipe, and as the outer wall cannot be polished at one time during clamping, the polishing can be completed only by multiple times of polishing, thereby reducing the polishing efficiency of the large-caliber threaded steel pipe; b, when the outer wall of the existing large-caliber threaded steel pipe is polished, the outer wall of the existing large-caliber threaded steel pipe cannot be uniformly polished, and the subsequent use of the large-caliber threaded steel pipe is influenced.
2. The clamping device provided by the invention drives the power gear to rotate through the third motor, the power gear drives the driven gear to rotate through the mutual matching operation among the clamping round rod, the driven gear, the sliding round rod, the straight plate, the sliding rod, the cambered plate and the rubber plate, so that the rubber plate on the cambered plate can be tightly abutted to the inner wall of the large-caliber threaded steel pipe, the large-caliber threaded steel pipe can be stably clamped, the positioning cylinder drives the positioning rod to move, the positioning rod can stably position the power gear, the clamping stability of the large-caliber threaded steel pipe is improved, the large-caliber threaded steel pipe clamped on the clamping round rod is driven to rotate through the second motor, and the large-caliber threaded steel pipe can be comprehensively polished.
3. The grinding device provided by the invention drives the cam to rotate through the fourth motor, the cam drives the cam to rotate through the mutual matching operation among the U-shaped plate, the U-shaped rod, the lower pressing plate, the abutting spring rod, the abutting plate, the return spring rod, the grinding round roller, the square plate and the connecting round rod, so that the grinding round roller can abut against the large-caliber threaded steel pipe, the grinding round roller can comprehensively grind the large-caliber threaded steel pipe, the positioning bidirectional cylinder drives the positioning plate to stably position the positioning gear, the grinding round roller stably abuts against the outer wall of the large-caliber threaded steel pipe, and the grinding uniformity of the large-caliber threaded steel pipe is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a flow chart of the operation of the present invention;
FIG. 2 is a schematic structural view of a steel pipe fine treatment apparatus of the present invention;
FIG. 3 is a partial cross-sectional view of FIG. 2 of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3 in accordance with the present invention;
FIG. 5 is an enlarged view of the invention taken along line K of FIG. 3;
FIG. 6 is a schematic view of a first perspective of the clamping device of the present invention;
FIG. 7 is a partial schematic view of a second perspective of the clamping device of the present invention;
FIG. 8 is a schematic view of a portion of the jacking apparatus of the present invention;
fig. 9 is a partial structural schematic view of the polishing apparatus of the present invention.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 9, a method for forming and processing a large-caliber threaded steel pipe mainly comprises the following steps:
preparing materials, namely preparing raw materials required by forming the threaded steel pipe to obtain raw materials for producing the threaded steel pipe;
step two, performing melt forming, namely performing melt forming operation on the raw material for producing the threaded steel pipe obtained in the step one to obtain a steel ingot;
step three, extrusion molding, namely carrying out extrusion molding operation on the steel ingot obtained in the step two to obtain an extrusion molded steel pipe;
step four, thread machining, namely performing internal thread machining operation on the extruded steel pipe obtained in the step three to obtain a steel pipe with finished thread machining;
step five, fine treatment, namely placing the steel pipe which is subjected to the thread machining and is obtained in the step four on steel pipe fine treatment equipment for fine treatment to obtain a steel pipe which is subjected to the fine treatment;
the steel pipe fine treatment equipment used in the steps comprises a bottom plate 1, a clamping device 2, a jacking device 3 and a polishing device 4, wherein the jacking device 3 is arranged in the middle of the bottom plate 1, the clamping devices 2 are symmetrically arranged on the bottom plate 1 in the left-right direction, and the polishing device 4 is arranged on the bottom plate 1.
The clamping device 2 comprises a first motor 2a, a transmission threaded rod 2b, a sliding plate 2c, a second motor 2d, a clamping round rod 2e, a third motor 2f, a power gear 2g, a driven round rod 2h, a driven gear 2i, a sliding round rod 2j, a straight plate 2k, a sliding rod 2l, an arc panel 2m, a rubber plate 2n, a positioning cylinder 2o and a positioning rod 2p, wherein the left end and the right end of the bottom plate 1 are symmetrically provided with sliding grooves, the sliding plate 2c is arranged in the sliding grooves in a sliding fit manner, the lower end of the sliding plate 2c is provided with a transmission threaded groove, the outer wall of the outer end of each sliding groove is provided with a groove, the inner wall of each groove is provided with the first motor 2a, the output end of the first motor 2a is provided with a transmission threaded rod, the transmission threaded rod is arranged in the transmission threaded groove in a thread meshing manner, the outer side of the upper end of the sliding plate 2c is provided with the second motor 2d, the output end of a second motor 2d penetrates through a sliding plate 2c to be provided with a clamping round rod 2e, a clamping round groove is formed in the clamping round rod 2e, the middle of the inner wall of the clamping round groove is uniformly provided with sliding holes along the circumferential direction, a sliding rod 2l is arranged in each sliding hole in a sliding fit mode, a straight plate 2k is arranged at the inner end of each sliding rod 2l, a square groove is formed in each straight plate 2k, the outer end of each sliding rod 2l is provided with an arc panel 2m, a rubber plate 2n is arranged on each arc panel 2m, a third motor 2f is arranged on the inner wall of each clamping round groove, the output end of the third motor 2f is provided with a power gear 2g, a driven round rod 2h is arranged on the inner wall of the clamping round groove along the circumferential direction through a bearing, a driven gear 2i is arranged on the driven round rod 2h, the driven gear 2i and the power gear 2g are meshed with each other for use, a sliding round rod 2j is eccentrically arranged on the outer wall of the driven gear 2i, and slip round bar 2j installs in the square groove through sliding fit's mode, is located to install location cylinder 2o between the adjacent driven round bar 2h on the centre gripping circular slot inner wall, and location cylinder 2o output is installed locating lever 2p, and mutually supports the use between locating lever 2p and the power gear 2 g.
The lower end of the bottom plate 1 is uniformly provided with supporting rods 11.
When the device works, a tool is manually used to convey a large-caliber threaded steel pipe needing fine treatment to a proper position, a first motor 2a drives a transmission threaded rod 2b to rotate, the transmission threaded rod 2b drives a sliding plate 2c to move in a threaded engagement mode, the sliding plate 2c drives an arc panel 2m to extend into the large-caliber threaded steel pipe, a third motor 2f drives a power gear 2g to rotate, the power gear 2g drives a driven gear 2i to rotate in a gear engagement mode, the driven gear 2i drives a sliding round rod 2j to rotate, the sliding round rod 2j slides in a square groove, so that the sliding round rod 2j drives a straight plate 2k to move, the straight plate 2k drives a sliding rod 2l to move, the sliding rod 2l drives a rubber plate 2n on the arc panel 2m to abut against the inner wall of the large-caliber threaded steel pipe, and a positioning cylinder 2o drives a positioning rod 2p to move, so that the positioning rod 2p performs positioning operation on the power gear 2g, and the rubber plate 2n on the cambered plate 2m performs clamping operation on the large-diameter threaded steel pipe.
The jacking device 3 comprises a fifth motor 3a, a power threaded rod 3b, a jacking plate 3c, a jacking block 3d, a sleeve 3e, a loop bar 3f, a buffering spring rod 3g, a clamping plate 3h, a tight round rod 3i and a tight round roller 3j, wherein clamping grooves are symmetrically formed in the left end and the right end of the bottom plate 1, the jacking plate 3c is installed in the clamping grooves in a sliding fit mode, a power threaded groove is formed in the lower end of the jacking plate 3c, the fifth motor 3a is symmetrically installed on the left end and the right end of the outer wall of the rear end of the bottom plate 1, the power threaded rod 3b is installed at the output end of the fifth motor 3a through the clamping grooves, the power threaded rod 3b is installed in the power threaded groove in a threaded engagement mode, the sleeve 3e is symmetrically installed on the left side and the inner side of the clamping grooves of the bottom plate 1, the loop bar 3f is installed in the sleeve 3e in a sliding fit mode, the buffering spring rod 3g is installed at the lower end of the loop bar 3f, the lower end of a buffer spring rod 3g is connected to the bottom plate 1, the upper end of the loop bar 3f is provided with a clamping plate 3h, jacking blocks 3d are symmetrically arranged on the outer wall of the lower end of the clamping plate 3h in a left-right mode, the upper end of the clamping plate 3h is provided with an arc-shaped groove, the inner wall of the arc-shaped groove is uniformly provided with jacking grooves along the circumferential direction of the inner wall of the arc-shaped groove, a tight round rod 3i is installed between the inner walls of the left end and the right end of the jacking grooves through a bearing, a tight round roller 3j is installed on the tight round rod 3i, and a tight mechanism 32 is installed on the clamping plate 3 h.
The upper end of the jacking plate 3c is in an inclined plane shape, the lower end of the jacking block 3d is in an inclined plane shape, and the inclined plane shape at the upper end of the jacking plate 3c and the inclined plane at the lower end of the jacking block 3d are matched with each other for use.
When the large-caliber threaded steel pipe clamping device works, after the clamping operation of the large-caliber threaded steel pipe is completed by the rubber plate 2n on the cambered plate 2m, the fifth motor 3a drives the power threaded rod 3b to rotate, the power threaded rod 3b drives the jacking plate 3c to move in a threaded engagement mode, the jacking plate 3c drives the jacking block 3d to move towards the upper end, meanwhile, through the mutual matching operation between the sleeve 3e and the sleeve rod 3f, the jacking block 3d drives the clamping plate 3h to move towards the upper end, so that the tight round roller 3j on the clamping plate 3h is tightly supported on the outer wall of the large-caliber threaded steel pipe, meanwhile, the sleeve rod 3f drives the buffer spring rod 3g to move, and the buffer spring rod 3g is in a stretching state.
The tight-supporting mechanism 32 comprises a tight-supporting bidirectional cylinder 321, an oblique angle plate 322, a flat plate 323, a positioning round rod 324, a positioning spring rod 325, a V-shaped plate 326, a rotating round rod 327 and a rotating round roller 328, the flat plate 323 is symmetrically arranged on the outer walls of the front end and the rear end of the clamping plate 3h, the positioning round rod 324 is arranged between the inner walls of the flat plates 323 through a bearing, the V-shaped plate 326 is arranged on the positioning round rod 324, the upper end of the V-shaped plate 326 is provided with a rotating groove, the rotating round rod 327 is arranged between the inner walls of the left end and the right end of the rotating groove through a bearing, the rotating round roller 328 is arranged on the rotating round rod 327, the positioning spring rod 325 is uniformly arranged on the inner wall of the lower end of the V-shaped plate 326, the inner end of the positioning spring rod 325 is connected on the outer walls of the front end and the rear end of the clamping plate 3h, the lower end of the V-shaped plate 326 is provided with an oblique groove, the tight-supporting bidirectional cylinder 321 is arranged in the middle of the lower end of the clamping plate 3h, the oblique angle plate 322 is symmetrically arranged on the front end and rear end of the tight-supporting bidirectional cylinder 321, and the bevel plate 322 and the bevel groove are matched with each other.
During specific work, after the tight round roller 3j on the clamping plate 3h is tightly abutted to the outer wall of the large-caliber threaded steel pipe, the tight bidirectional cylinder 321 drives the oblique angle plate 322 to move, and the oblique angle plate 322 drives the V-shaped plate 326 to rotate, so that the rotary round roller 328 on the V-shaped plate 326 is tightly abutted to the outer wall of the large-caliber threaded steel pipe.
The polishing device 4 comprises a U-shaped plate 4a, a U-shaped rod 4b, a lower pressing plate 4c, a resisting spring rod 4d, a resisting plate 4e, a return spring rod 4f, a polishing round rod 4g, a polishing round roller 4h, a square plate 4i, a fourth motor 4j, a cam 4k, a connecting round rod 4l, a positioning gear 4m, a positioning bidirectional cylinder 4n and a positioning plate 4o, wherein the U-shaped plate 4a is arranged on the outer side of the sliding groove on the bottom plate 1, a through groove is symmetrically formed in the left and right upper end of the U-shaped plate 4a, the U-shaped rod 4b is arranged in the through groove in a sliding fit mode, the return spring rods 4f are uniformly arranged on the outer wall of the lower end of the U-shaped rod 4b, the lower end of the return spring rod 4f is connected to the U-shaped plate 4a, the lower pressing plate 4c is arranged at the lower end of the U-shaped rod 4b, the resisting spring rods 4d are uniformly arranged on the lower pressing plate 4c, the resisting plate 4e, the lower end of a butting plate 4e is provided with a cambered groove, the inner wall of the cambered groove is provided with a butting groove along the circumferential direction, a polishing round rod 4g is arranged between the inner walls of the left end and the right end of the butting groove through a bearing, a polishing round roller 4h is arranged on the polishing round rod 4g, square plates 4i are symmetrically arranged at the front and the back of the upper end of a U-shaped plate 4a, a fourth motor 4j is arranged on the outer wall of the square plate 4i positioned at the rear end of the U-shaped plate 4a, the output end of the fourth motor 4j penetrates through the square plate 4i to be provided with a cam 4k, the outer wall of the front end of the cam 4k is provided with a connecting round rod 4l, the front end of the connecting round rod 4l penetrates through the square plate 4i positioned at the upper front end of the U-shaped plate 4a to be provided with a positioning gear 4m, the outer wall of the square plate 4i positioned at the upper front end of the U-shaped plate 4a is symmetrically provided with a clamping groove, the positioning bidirectional cylinder 4n is arranged on the outer wall of the square plate 4i positioned at the upper front end of the U-shaped plate 4a, the positioning plates 4o are symmetrically arranged at the left and right ends of the output end of the positioning bidirectional cylinder 4n, and the positioning plates 4o are arranged in the clamping grooves in a sliding fit mode.
The inner of locating plate 4o be provided with the arc wall, evenly be provided with the tooth's socket along its circumference direction on the arc wall inner wall, and use mutually supporting between tooth's socket and the positioning gear 4 m.
When the large-caliber threaded steel pipe positioning device works specifically, after the rotary round roller 328 on the V-shaped plate 326 is abutted against the outer wall of the large-caliber threaded steel pipe, the fourth motor 4j drives the cam 4k to rotate, the cam 4k drives the connecting round rod 4l to rotate while rotating, the connecting round rod 4l drives the positioning gear 4m to rotate to a proper position, meanwhile, the cam 4k drives the U-shaped rod 4b to move towards the lower end, the U-shaped rod 4b drives the lower pressing plate 4c to move towards the lower end, the lower pressing plate 4c drives the abutting plate 4e to move towards the lower end, the abutting plate 4e drives the polishing round roller 4h to abut against the outer wall of the large-caliber threaded steel pipe, meanwhile, the U-shaped rod 4b drives the return spring rod 4f to move, the return spring rod 4f is in a compressed state, and the positioning bidirectional cylinder 4n drives the positioning plate 4o to move, so that the positioning gear 4m is positioned by the positioning plate 4 o.
No. two motor 2d drive centre gripping pole 2e and rotate, and centre gripping pole 2e drives the heavy-calibre threaded steel pipe rotation of centre gripping on the cambered plate 2m for support tight round roller 3j, polish round roller 4h and rotatory round roller 328 and all polish the fine processing to heavy-calibre threaded steel pipe outer wall.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A large-diameter threaded steel pipe forming processing method is characterized in that: the method mainly comprises the following steps:
preparing materials, namely preparing raw materials required by forming the threaded steel pipe to obtain raw materials for producing the threaded steel pipe;
step two, performing melt forming, namely performing melt forming operation on the raw material for producing the threaded steel pipe obtained in the step one to obtain a steel ingot;
step three, extrusion molding, namely carrying out extrusion molding operation on the steel ingot obtained in the step two to obtain an extrusion molded steel pipe;
step four, thread machining, namely performing internal thread machining operation on the extruded steel pipe obtained in the step three to obtain a steel pipe with finished thread machining;
step five, fine treatment, namely placing the steel pipe which is subjected to the thread machining and is obtained in the step four on steel pipe fine treatment equipment for fine treatment to obtain a steel pipe which is subjected to the fine treatment;
the steel pipe fine processing equipment used in the steps comprises a bottom plate (1), a clamping device (2), a jacking device (3) and a polishing device (4), wherein the jacking device (3) is installed in the middle of the bottom plate (1), the clamping devices (2) are symmetrically installed on the bottom plate (1) from left to right, and the polishing device (4) is installed on the bottom plate (1);
the clamping device (2) comprises a first motor (2a), a transmission threaded rod (2b), a sliding plate (2c), a second motor (2d), a clamping round rod (2e), a third motor (2f), a power gear (2g), a driven round rod (2h), a driven gear (2i), a sliding round rod (2j), a straight plate (2k), a sliding rod (2l), an arc panel (2m), a rubber plate (2n), a positioning cylinder (2o) and a positioning rod (2p), sliding grooves are symmetrically formed in the left end and the right end of the bottom plate (1), the sliding plate (2c) is installed in the sliding grooves in a sliding fit mode, a transmission threaded groove is formed in the lower end of the sliding plate (2c), a groove is formed in the outer wall of the outer end of the sliding groove, the first motor (2a) is installed on the inner wall of the groove, and a transmission threaded rod is installed at the output end of the first motor (2a), and the transmission threaded rod is arranged in the transmission threaded groove in a threaded engagement mode, the outer side of the upper end of the sliding plate (2c) is provided with a second motor (2d), the output end of the second motor (2d) penetrates through the sliding plate (2c) to be provided with a clamping round rod (2e), the clamping round rod (2e) is provided with a clamping round groove, the middle part of the inner wall of the clamping round groove is uniformly provided with a sliding hole along the circumferential direction, the sliding hole is internally provided with a sliding rod (2l) in a sliding fit mode, the inner end of the sliding rod (2l) is provided with a straight plate (2k), the straight plate (2k) is provided with a square groove, the outer end of the sliding rod (2l) is provided with an arc panel (2m), the arc panel (2m) is provided with a rubber plate (2n), the inner wall of the clamping round groove is provided with a third motor (2f), the output end of the third motor (2f) is provided with a power gear (2g), the inner wall of the clamping round groove is provided with a driven round rod (2h) along the circumferential direction through a bearing, a driven gear (2i) is mounted on the driven round rod (2h), the driven gear (2i) and the power gear (2g) are meshed with each other for use, a sliding round rod (2j) is eccentrically mounted on the outer wall of the driven gear (2i), the sliding round rod (2j) is mounted in a square groove in a sliding fit mode, a positioning cylinder (2o) is mounted between adjacent driven round rods (2h) on the inner wall of the clamping round groove, a positioning rod (2p) is mounted at the output end of the positioning cylinder (2o), and the positioning rod (2p) and the power gear (2g) are matched with each other for use;
the polishing device (4) comprises a U-shaped plate (4a), a U-shaped rod (4b), a lower pressing plate (4c), a tightening spring rod (4d), a tightening plate (4e), a return spring rod (4f), a polishing round rod (4g), a polishing round roller (4h), a square plate (4i), a fourth motor (4j), a cam (4k), a connecting round rod (4l), a positioning gear (4m), a positioning bidirectional cylinder (4n) and a positioning plate (4o), the U-shaped plate (4a) is arranged on the outer side of a sliding groove on the bottom plate (1), penetrating grooves are symmetrically formed in the left and right of the upper end of the U-shaped plate (4a), the U-shaped rod (4b) is arranged in the penetrating grooves in a sliding fit mode, the return spring rods (4f) are uniformly arranged on the outer wall of the lower end of the U-shaped rod (4b), and the lower ends of the return spring rods (4f) are connected to the U-shaped plate (4a), lower pressing plate (4c) is installed to U form pole (4b) lower extreme, evenly install on lower pressing plate (4c) and support tight spring lever (4d), support tight spring lever (4d) lower extreme and install and support tight board (4e), it is provided with the cambered surface groove to support tight board (4e) lower extreme, it supports tight groove to have seted up along its circumference direction on the cambered surface inslot wall, support and install between the tight groove left and right sides both ends inner wall through the bearing and polish round bar (4g), it installs round roller (4h) to polish to install on round bar (4g), square plate (4i) are installed to U template (4a) upper end longitudinal symmetry, install No. four motor (4j) on square plate (4i) outer wall that is located U template (4a) rear end, No. four motor (4j) output passes square plate (4i) and installs cam (4k), install on cam (4k) front end outer wall and connect round bar (4l), it passes square plate (4i) installation of front end installation that U template (4a) was located U template (4a) upper end to connect round bar (4l), it installs There are positioning gear (4m), the centre gripping groove has been seted up to bilateral symmetry on square slab (4i) outer wall that is located U template (4a) upper front end, installs location two-way cylinder (4n) on square slab (4i) outer wall that is located U template (4a) upper front end, location two-way cylinder (4n) output bilateral symmetry installs locating plate (4o), and locating plate (4o) install in the centre gripping inslot through sliding fit's mode.
2. The large-caliber threaded steel pipe forming processing method according to claim 1, characterized in that: the jacking device (3) comprises a fifth motor (3a), a power threaded rod (3b), a jacking plate (3c), a jacking block (3d), a sleeve (3e), a loop bar (3f), a buffer spring rod (3g), a clamping plate (3h), a tight round bar (3i) and a tight round roller (3j), wherein clamping grooves are symmetrically formed in the left end and the right end of the bottom plate (1), the jacking plate (3c) is installed in the clamping grooves in a sliding fit mode, a power threaded groove is formed in the lower end of the jacking plate (3c), the fifth motor (3a) is symmetrically installed on the outer wall of the rear end of the bottom plate (1) in the left-right mode, the output end of the fifth motor (3a) penetrates through the clamping grooves to be provided with the power threaded rod (3b), the power threaded rod (3b) is installed in the power threaded groove in a threaded engagement mode, the bottom plate (1) is symmetrically installed with the sleeve (3e) on the left side and the inner side of the clamping grooves in the left side, loop bar (3f) are installed in sleeve (3e) through sliding fit, buffering spring rod (3g) are installed to loop bar (3f) lower extreme, buffering spring rod (3g) lower extreme is connected on bottom plate (1), cardboard (3h) are installed to loop bar (3f) upper end, bilateral symmetry installs jacking piece (3d) on cardboard (3h) lower extreme outer wall, cardboard (3h) upper end is provided with the arcuation groove, the jacking groove has evenly been seted up along its circumference direction on the arcuation inslot wall, install through the bearing between the both ends inner wall about the jacking groove and support tight round bar (3i), support and install on tight round bar (3i) and support tight round roller (3j), install on cardboard (3h) and support tight mechanism (32).
3. The large-caliber threaded steel pipe forming processing method according to claim 2, characterized in that: the tight mechanism (32) comprises a tight bidirectional cylinder (321), an oblique angle plate (322), a flat plate (323), a positioning round rod (324), a positioning spring rod (325), a V-shaped plate (326), a rotating round rod (327) and a rotating round roller (328), the outer walls of the front end and the rear end of the clamping plate (3h) are symmetrically provided with the flat plate (323), the positioning round rod (324) is arranged between the inner walls of the flat plate (323) through a bearing, the V-shaped plate (326) is arranged on the positioning round rod (324), the upper end of the V-shaped plate (326) is provided with a rotating groove, the rotating round rod (327) is arranged between the inner walls of the left end and the right end of the rotating groove through a bearing, the rotating round roller (328) is arranged on the rotating round rod (327), the positioning spring rod (325) is evenly arranged on the inner wall of the lower end of the V-shaped plate (326), the inner end of the positioning spring rod (325) is connected to the outer walls of the front end and the rear end of the clamping plate (3h), the inclined plane groove has been seted up to V template (326) lower extreme, cardboard (3h) lower extreme mid-mounting have support tight two-way cylinder (321), support tight two-way cylinder (321) output front and back symmetry and install oblique scute (322), and use mutually supporting between oblique scute (322) and the inclined plane groove.
4. The large-caliber threaded steel pipe forming processing method according to claim 1, characterized in that: the inner of the positioning plate (4o) is provided with an arc-shaped groove, the inner wall of the arc-shaped groove is uniformly provided with tooth grooves along the circumferential direction of the arc-shaped groove, and the tooth grooves and the positioning gears (4m) are mutually matched for use.
5. The large-caliber threaded steel pipe forming processing method according to claim 2, characterized in that: the upper end of the jacking plate (3c) is in an inclined plane shape, the lower end of the jacking block (3d) is in an inclined plane shape, and the inclined plane shape of the upper end of the jacking plate (3c) and the inclined plane shape of the lower end of the jacking block (3d) are matched with each other for use.
6. The large-caliber threaded steel pipe forming processing method according to claim 1, characterized in that: the lower end of the bottom plate (1) is uniformly provided with a support rod (11).
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| CN113070748A (en) * | 2021-03-31 | 2021-07-06 | 闵晨 | Surface treatment system for manufacturing environment-friendly glass fiber reinforced plastic septic tank |
| CN113211233A (en) * | 2021-05-27 | 2021-08-06 | 李宜宜 | Oil pump rotor manufacturing, forming and processing system |
| CN113370060B (en) * | 2021-08-13 | 2021-10-12 | 新沂市振港金属制品有限公司 | Stainless steel product production surface polishing processing machinery |
| CN117400000B (en) * | 2023-12-12 | 2024-02-20 | 吉林金钢钢铁股份有限公司 | Cold shearing equipment and process for deformed steel bar processing |
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Effective date of registration: 20211026 Address after: 239500 No. 2, Weiyi Road, economic development zone, Shizi Town, Quanjiao County, Chuzhou City, Anhui Province Applicant after: Anhui Yongliu Pipeline Co.,Ltd. Address before: 312000 Ganlin town old street, Shengzhou City, Shaoxing City, Zhejiang Province Applicant before: Yu Liangbing |
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