CN113600909A - Hydraulic pipe cutting equipment and hydraulic pipe production process - Google Patents
Hydraulic pipe cutting equipment and hydraulic pipe production process Download PDFInfo
- Publication number
- CN113600909A CN113600909A CN202110844546.5A CN202110844546A CN113600909A CN 113600909 A CN113600909 A CN 113600909A CN 202110844546 A CN202110844546 A CN 202110844546A CN 113600909 A CN113600909 A CN 113600909A
- Authority
- CN
- China
- Prior art keywords
- billet
- hydraulic
- cutting
- pipe
- pierced billet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D21/00—Machines or devices for shearing or cutting tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D33/00—Accessories for shearing machines or shearing devices
- B23D33/02—Arrangements for holding, guiding, and/or feeding work during the operation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The application relates to the technical field of hydraulic pipe production, in particular to hydraulic pipe cutting equipment which comprises a support, a cutting mechanism arranged on the support, a supporting mechanism arranged on the support and used for supporting the inner wall of a cutting part of a seamless steel pipe, and a fixing mechanism arranged on the support and used for fixing the seamless steel pipe; the supporting mechanism is fixedly connected with the adjusting component on the support and is fixedly connected with the supporting component on the adjusting component, the supporting component is arranged inside the seamless steel tube, and the supporting component is abutted to the inner wall of the seamless steel tube. This application has when cutting mechanism cutting hollow billet, and cutting mechanism can exert certain pressure to the hollow billet, and the supporting component butt can offset some pressure that the hollow billet received on the inner wall of hollow billet cutting department to reduce the effect of the deformation of hollow billet cutting department.
Description
Technical Field
The application relates to the technical field of hydraulic pipe production, in particular to hydraulic pipe cutting equipment and a hydraulic pipe production process.
Background
The hydraulic steel pipes are basically divided into fluid pipes and oil steel pipe barrels used in hydraulic systems, and generally seamless steel pipes with good surface finish and high precision are adopted as the hydraulic steel pipes. In the production of seamless steel pipes, the end of the steel pipe blank processed after the steel bar blank is pierced and drawn is usually deformed by drawing, and in the processing, the end of the seamless steel pipe is usually cut off, thereby improving the quality of the seamless steel pipe. During the cutting process, the cutting equipment can apply certain pressure to the seamless steel tube, so that the end part of the capillary tube is deformed to a certain extent.
Disclosure of Invention
In order to reduce the deformation of seamless steel pipe when cutting, the application provides a hydraulic pipe cutting equipment and hydraulic pipe production technology thereof.
The application provides a hydraulic pipe cutting equipment and hydraulic pipe production technology adopts following technical scheme:
a hydraulic pipe cutting device comprises a support, a cutting mechanism arranged on the support, a supporting mechanism arranged on the support and used for supporting the inner wall of a seamless steel pipe cutting position, and a fixing mechanism arranged on the support and used for fixing a seamless steel pipe; the supporting mechanism is fixedly connected with the adjusting component on the support and is fixedly connected with the supporting component on the adjusting component, the supporting component is arranged inside the seamless steel tube, and the supporting component is abutted to the inner wall of the seamless steel tube.
Through adopting above-mentioned technical scheme, the support is put to the capillary that the staff will heat, later use fixed establishment to fix the capillary, later use adjusting part to push away the inner wall of assigned position department with supporting component, later with the supporting component butt on the near inner wall of capillary cutting department, later use cutting mechanism to cut the capillary as required, when cutting mechanism cuts the capillary, cutting mechanism can exert certain pressure to the capillary, the supporting component butt is on the inner wall of capillary cutting department, can offset some pressure that the capillary received, thereby reduce the deformation of capillary cutting department.
Optionally, the adjusting assembly includes a fixed seat fixedly connected to the bracket and a first hydraulic cylinder fixedly connected to the fixed seat; the first hydraulic cylinder is horizontally arranged, and the supporting component is fixedly connected to a piston rod of the first hydraulic cylinder.
Through adopting above-mentioned technical scheme, the staff can adjust supporting component's position through first pneumatic cylinder to make supporting component be located near the capillary cutting department, improve supporting component's supporting effect.
Optionally, the support assembly includes a mounting seat fixedly connected to the first hydraulic cylinder piston rod, a second hydraulic cylinder fixedly connected to the mounting seat, and an abutting plate fixedly connected to the second hydraulic cylinder piston rod; the second pneumatic cylinder is provided with a plurality ofly, the butt joint board butt is on seamless steel pipe's inner wall, the butt joint board is the arc, the butt joint board is along the global equipartition of seamless steel pipe's inner wall.
Through adopting above-mentioned technical scheme, after the staff used first pneumatic cylinder to adjust supporting component's position, the staff provided the support for the hollow billet through second pneumatic cylinder with the butt of butt plate on near the inner wall of hollow billet cutting department through second pneumatic cylinder and butt plate to reduce the deformation of hollow billet because of the cutting production, make the cutting off department of hollow billet more accurate.
Optionally, the mounting base is a circular disc, the axis of the mounting base coincides with the axis of the first hydraulic cylinder, and the second hydraulic cylinders are uniformly distributed on the side face of the mounting base.
Through adopting above-mentioned technical scheme, set the base that the disc can the second pneumatic cylinder into the mount pad and be located same periphery, make each butt plate comparatively close apart from the distance of capillary inner wall to make the extension length of each second pneumatic cylinder piston rod similar, make things convenient for the staff to control the butt plate.
Optionally, a first heat insulation layer is fixedly connected to the side face, away from the second hydraulic cylinder, of the abutting plate.
Through adopting above-mentioned technical scheme, when the cutting hollow billet, because the temperature of hollow billet is higher, the first insulating layer of butt on the hollow billet inner wall can reduce the heat of hollow billet and transmit to the butt plate, reduces the butt plate and warp under high temperature and the risk that second pneumatic cylinder is damaged by high temperature, protects supporting component, extension supporting component's life.
Optionally, the fixing mechanism comprises clamping assemblies on the two groups of fixed connecting supports, the clamping assemblies are symmetrically arranged relative to the adjusting assembly, and one end, close to the pierced billet, of each clamping assembly abuts against the outer side face of the pierced billet.
Through adopting above-mentioned technical scheme, use fixed establishment to fix the pierced billet, reduce pierced billet and take place to roll or slide at the in-process of cutting, machining precision when improving pierced billet cutting.
Optionally, the centre gripping subassembly includes cylinder and the splint of fixed connection on the cylinder piston rod of fixed connection on the support, the cylinder sets up with first pneumatic cylinder is perpendicular, splint are the arc, the inner circle butt of splint is on the side of pierced billet.
Through adopting above-mentioned technical scheme, the staff uses the cylinder with splint tight butt on the lateral surface of pierced billet when using fixed pierced billet.
Optionally, the cross section of the clamping plate is in a semicircular shape, and a second heat insulation layer is fixedly connected to the inner ring of the clamping plate.
Through adopting above-mentioned technical scheme, the cross sectional shape can increase splint and the area of contact of pierced billet lateral surface for the annular splint of semicircle, under the cooperation of two sets of centre gripping subassemblies, makes pierced billet can be more stable, and the heat that the second insulating layer can reduce pierced billet passes through splint and transmits to the cylinder, protection cylinder.
A production process of a hydraulic pipe comprises the following steps:
a. heating the bar stock; heating a bar to be processed to a specified temperature to soften the bar;
b. perforating the bar stock; placing the heated bar stock into a perforating machine, perforating the bar stock, and processing the bar stock into a capillary;
c. processing the wall thickness of the tubular billet; placing the hollow billet into an extension machine, pressurizing and stretching the hollow billet, and processing the hollow billet into the wall thickness of a pierced billet;
d. processing the pipe diameter of the tubular billet; placing the tubular billet with the determined wall thickness into a sizing mill, and processing the pipe diameter of the tubular billet to the specified pipe diameter to form a pierced billet;
e. cutting the pierced billet into a finished pipe; on placing the support with the pierced billet, the pierced billet that uses fixed establishment will is fixed, stretches adjusting part to the inside of pierced billet, fixes supporting mechanism on the inner wall of pierced billet cutting department, uses cutting mechanism to cut into finished product pipe with the pierced billet.
Optionally, before processing, the step c and the step d need to heat the capillary to make the temperature of the capillary reach the yield temperature; in step c, the rod core inside the capillary is not pulled out, and the rod core inside the capillary is pulled out before step d.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the working personnel place the heated capillary on the support, then use the fixed establishment to fix the capillary, then use the regulating assembly to push the supporting component to the inner wall of the assigned position department, then butt the supporting component on the inner wall near the capillary cutting department, then use the cutting mechanism to cut the capillary as required, when the cutting mechanism cuts the capillary, the cutting mechanism will exert certain pressure to the capillary, the supporting component butt on the inner wall of the capillary cutting department, will offset some pressure that the capillary received, thus reduce the deformation of the capillary cutting department;
2. the base that sets the disk to the mount pad can the second pneumatic cylinder is located same periphery, makes each butt joint board comparatively close apart from the distance of capillary inner wall to make the extension length of each second pneumatic cylinder piston rod similar, make things convenient for the staff to control the butt joint board.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a support mechanism in an embodiment of the present application.
Fig. 3 is a schematic structural view of a fixing mechanism in the embodiment of the present application.
Description of reference numerals: 1. a support; 2. a cutting mechanism; 3. a support mechanism; 31. an adjustment assembly; 311. a fixed seat; 312. a first hydraulic cylinder; 32. a support assembly; 321. a mounting seat; 322. a second hydraulic cylinder; 323. a butt joint plate; 324. a first insulating layer; 4. a fixing mechanism; 41. a clamping assembly; 411. a cylinder; 412. a splint; 413. a second insulating layer.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses hydraulic pipe cutting equipment.
The hydraulic pipes are mostly seamless steel pipes with good surface pipe smoothness and high processing precision, steel rods or steel ingots are usually adopted to punch and process the seamless steel pipes into rough pipes in production, then the rough pipes are manufactured after the procedures of stretching, sizing and the like, and then the rough pipes are cut into finished products. After processing steel pole or steel ingot into the pierced billet, the tip of pierced billet is because after tensile deformation, the quality of tip is lower, can cut off the tip of pierced billet usually, later cuts into the finished product with the pierced billet again. In the cutting process of the pierced billet, the temperature of the pierced billet is high, the hardness and the elasticity are low, the pierced billet is easy to deform under stress, and the end face precision of a finished product is low.
Referring to fig. 1, a hydraulic pipe cutting apparatus includes a support 1, a fixing mechanism 4 installed on the support 1 for fixing a pierced billet, a supporting mechanism 3 installed on the support 1 for supporting an inner wall of the pierced billet, and a cutting mechanism 2 installed on the support 1 for cutting the pierced billet. After the steel bar passes through the processes of heating, perforating, wall thickness stretching, pipe diameter determining and the like, the steel bar becomes a pierced billet. The pierced billet is sent to the support 1, is fixed by the fixing mechanism 4, then uses the inner wall support of the pierced billet with the supporting mechanism 3, then uses cutting mechanism 2 to tailor the pierced billet.
Referring to fig. 2, the support mechanism 3 includes a fixed seat 311 welded to the bracket 1, a first hydraulic cylinder 312 mounted on the fixed seat 311 using bolts, and a support assembly 32 threadedly mounted on a piston rod of the first hydraulic cylinder 312. The first hydraulic cylinder 312 is arranged parallel to the axis of the pierced billet, and the support assembly 32 comprises a mounting seat 321 which is installed on the piston rod of the first hydraulic rod in a threaded manner, a second hydraulic cylinder 322 which is installed on the side surface of the mounting seat 321 by using a bolt, an abutting plate 323 which is connected to the piston rod of the second hydraulic cylinder 322 in a threaded manner, and a first heat insulation layer 324 which is adhered to the abutting plate 323.
The mounting seat 321 is a circular disc, the axis of the mounting seat 321 coincides with the axis of the first hydraulic cylinder 312, the first hydraulic rod is horizontally arranged, the second hydraulic cylinders 322 are uniformly distributed along the circumferential surface of the mounting seat 321, and the axis of the second hydraulic cylinders 322 is perpendicular to the axis of the first hydraulic cylinder 312. The abutting plate 323 and the first heat insulation layer 324 are arc-shaped plates with openings facing the mounting seat 321, and the first heat insulation layer 324 is made of rock wool plates. Under the action of the second hydraulic cylinder 322, the first heat insulation layer 324 abuts against the inner wall of the pierced billet.
Referring to fig. 3, the fixing mechanisms 4 are provided in two sets, the mounting plate for mounting the fixing mechanisms 4 is welded on the support 1, each set of fixing mechanisms 4 includes two sets of clamping assemblies 41 symmetrically arranged about the pierced billet, the clamping assemblies 41 are arranged perpendicular to the first hydraulic cylinder 312, and the two sets of clamping assemblies 41 are mutually matched to clamp and fix the pierced billet. The clamp assembly 41 includes a cylinder 411 mounted on a mounting plate using bolts, a clamp plate 412 screw-mounted on a piston rod of the cylinder 411, and a second insulation layer 413 adhered to the clamp plate 412. The cylinder 411 is horizontally and vertically arranged on the first hydraulic cylinder 312, the clamping plate 412 and the second heat insulation layer 413 are arc-shaped plates with openings arranged towards the pierced billet, the cross sections of the clamping plate 412 and the second heat insulation layer 413 are semicircular, and the second heat insulation layer 413 is made of the same material as the first heat insulation layer 324 and abuts against the outer side surface of the pierced billet.
Referring to fig. 1, the cutting mechanism 2 includes a robot arm mounted on a support 1 and a cutter mounted on the robot arm. After the pierced billet is conveyed to the support 1, the piston rod of the air cylinder 411 is extended out to push the clamping plate 412 and the second heat insulation layer 413, so that the second heat insulation layer 413 abuts against the outer side surface of the pierced billet, the two groups of fixing mechanisms 4 are matched to clamp and fix the pierced billet, then the piston of the first hydraulic cylinder 312 moves to send the support component 32 to a specified position, the piston rod of the second hydraulic cylinder 322 is extended out, and the first heat insulation layer 324 abuts against the inner wall of the pierced billet.
Because the temperature of pierced billet this moment is higher, butt plate 323 and splint 412 direct contact pierced billet, heat on the pierced billet can be transmitted to second pneumatic cylinder 322 through butt plate 323 on, on the cylinder 411 was transmitted through splint 412, make second pneumatic cylinder 322 and cylinder 411 damaged very easily, under the effect of first insulating layer and second insulating layer 413, heat on the pierced billet is difficult to be transmitted to on second pneumatic cylinder 322 and the cylinder 411 to protection second pneumatic cylinder 322 and cylinder 411.
After supporting mechanism 3 and fixed establishment 4 all take one's place, cutting mechanism 2 work, the cutting knife begins to rotate, and the arm promotes the cutting knife and removes, when the cutting knife cuts the pierced billet. The cutting knife can apply certain pressure to the pierced billet, and the fixing mechanism 4 can fix the pierced billet and reduce the rotation or sliding of the pierced billet under the action of the pressure; the supporting mechanism 3 positioned inside the pierced billet can reduce the effect of pressure on the pierced billet and reduce the deformation of the cutting end face in the cutting process.
The implementation principle of the hydraulic pipe cutting equipment in the embodiment of the application is as follows: after the pierced billet is sent to the bracket 1, the fixing mechanism 4 clamps and fixes the pierced billet, so that the pierced billet is not easy to rotate or slide; the supporting mechanism 3 is abutted to the inner wall of the pierced billet, so that the inner wall of the pierced billet is supported, the pierced billet is not easy to deform, and the stability of the pierced billet during cutting is improved.
The embodiment of the application also discloses a production process of the hydraulic pipe.
A production process of a hydraulic pipe comprises the following steps:
a. heating the bar stock; heating a bar to be processed to a specified temperature to soften the bar;
b. perforating the bar stock; placing the heated bar stock into a perforating machine, perforating the bar stock, and processing the bar stock into a capillary;
c. processing the wall thickness of the tubular billet; placing the hollow billet into an extension machine, pressurizing and stretching the hollow billet, and processing the hollow billet into the wall thickness of a pierced billet;
d. processing the pipe diameter of the tubular billet; placing the tubular billet with the determined wall thickness into a sizing mill, and processing the pipe diameter of the tubular billet to the specified pipe diameter to form a pierced billet;
e. cutting the pierced billet into a finished pipe; on placing support 1 with the pierced billet, use the pierced billet that fixed establishment 4 will to fix, stretch adjusting part 31 to the inside of pierced billet, fix supporting mechanism 3 on the inner wall of pierced billet cutting department, use cutting mechanism 2 to cut into finished product pipe with the pierced billet.
Before the wall thickness and the pipe diameter of the capillary are processed, the temperature of the capillary is reduced, so that the brittleness of the capillary is increased, the ductility of the capillary is reduced, a worker heats the capillary to the yield temperature again, the brittleness of the capillary is reduced, the ductility of the capillary is improved, and the processing is convenient; in step c, the rod core inside the capillary is not pulled out, and the rod core inside the capillary is pulled out before step d.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A hydraulic pipe cutting device is characterized in that: comprises a bracket (1), a cutting mechanism (2) arranged on the bracket (1), a supporting mechanism (3) arranged on the bracket (1) and used for supporting the inner wall of the cutting position of the seamless steel pipe, and a fixing mechanism (4) arranged on the bracket (1) and used for fixing the seamless steel pipe; the support mechanism (3) fixed connection is in adjusting part (31) on support (1) and fixed connection is in supporting component (32) on adjusting part (31), supporting component (32) set up the inside at the seamless steel pipe, supporting component (32) butt is on the inner wall of seamless steel pipe.
2. A hydraulic pipe cutting apparatus according to claim 1, wherein: the adjusting assembly (31) comprises a fixed seat (311) fixedly connected to the support (1) and a first hydraulic cylinder (312) fixedly connected to the fixed seat (311); the first hydraulic cylinder (312) is horizontally arranged, and the support component (32) is fixedly connected to a piston rod of the first hydraulic cylinder (312).
3. A hydraulic pipe cutting apparatus according to claim 2, wherein: the supporting component (32) comprises an installation seat (321) fixedly connected to a piston rod of the first hydraulic cylinder (312), a second hydraulic cylinder (322) fixedly connected to the installation seat (321), and an abutting plate (323) fixedly connected to a piston rod of the second hydraulic cylinder (322); the second hydraulic cylinders (322) are provided with a plurality of abutting plates (323) which abut against the inner wall of the seamless steel pipe, the abutting plates (323) are arc-shaped plates, and the abutting plates (323) are uniformly distributed along the circumferential surface of the inner wall of the seamless steel pipe.
4. A hydraulic pipe cutting apparatus according to claim 3, wherein: the mounting seat (321) is a disc, the axis of the mounting seat (321) coincides with the axis of the first hydraulic cylinder (312), and the second hydraulic cylinders (322) are uniformly distributed on the side face of the mounting seat (321).
5. A hydraulic pipe cutting apparatus according to claim 3, wherein: and a first heat insulation layer (324) is fixedly connected to the side surface, away from the second hydraulic cylinder (322), of the abutting plate (323).
6. A hydraulic pipe cutting apparatus according to claim 1, wherein: the fixing mechanism (4) comprises clamping components (41) on two groups of fixed connecting supports (1), the clamping components (41) are symmetrically arranged relative to the adjusting component (31), and one end of each clamping component (41) close to the pierced billet is abutted to the outer side face of the pierced billet.
7. A hydraulic pipe cutting apparatus according to claim 6, wherein: centre gripping subassembly (41) are including cylinder (411) and splint (412) of fixed connection on cylinder (411) piston rod of fixed connection on support (1), cylinder (411) set up with first pneumatic cylinder (311) are perpendicular, splint (412) are the arc, the inner circle butt of splint (412) is on the side of pierced billet.
8. A hydraulic pipe cutting apparatus according to claim 7, wherein: the cross section of the clamping plate (412) is in the shape of a semicircular ring, and a second heat insulation layer (413) is fixedly connected to the inner ring of the clamping plate (412).
9. A hydraulic pipe production process using a hydraulic pipe cutting apparatus according to claim 1, characterized in that: the method comprises the following steps:
heating the bar stock; heating a bar to be processed to a specified temperature to soften the bar;
perforating the bar stock; placing the heated bar stock into a perforating machine, perforating the bar stock, and processing the bar stock into a capillary;
processing the wall thickness of the tubular billet; placing the hollow billet into an extension machine, pressurizing and stretching the hollow billet, and processing the hollow billet into the wall thickness of a pierced billet;
processing the pipe diameter of the tubular billet; placing the tubular billet with the determined wall thickness into a sizing mill, and processing the pipe diameter of the tubular billet to the specified pipe diameter to form a pierced billet;
cutting the pierced billet into a finished pipe; on placing support (1) with the pierced billet, use the pierced billet that fixed establishment (4) will fixed, stretch adjusting part (31) to the inside of pierced billet, fix supporting mechanism (32) on the inner wall of pierced billet cutting department, use cutting mechanism to cut into finished product pipe with the pierced billet.
10. A hydraulic pipe production process according to claim 9, characterized in that: c, heating the tubular billet before processing in the step d to enable the temperature of the tubular billet to reach the yield temperature; in step c, the rod core inside the capillary is not pulled out, and the rod core inside the capillary is pulled out before step d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110844546.5A CN113600909A (en) | 2021-07-26 | 2021-07-26 | Hydraulic pipe cutting equipment and hydraulic pipe production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110844546.5A CN113600909A (en) | 2021-07-26 | 2021-07-26 | Hydraulic pipe cutting equipment and hydraulic pipe production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113600909A true CN113600909A (en) | 2021-11-05 |
Family
ID=78305391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110844546.5A Pending CN113600909A (en) | 2021-07-26 | 2021-07-26 | Hydraulic pipe cutting equipment and hydraulic pipe production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113600909A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7422445B1 (en) | 2023-09-26 | 2024-01-26 | 株式会社サンエイト | jig |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581014A (en) * | 2012-02-07 | 2012-07-18 | 王国亮 | Process for producing thin-wall seamless steel tubes |
| CN103272845A (en) * | 2013-05-02 | 2013-09-04 | 长葛市一鸣机械有限公司 | Hot rolling process of small-bore ultra-thin-wall seamless steel tube |
| CN104438333A (en) * | 2014-12-10 | 2015-03-25 | 西北工业大学 | Tri-roller reciprocating type skew rolling technique of seamless pipes |
| CN209532256U (en) * | 2019-02-27 | 2019-10-25 | 中国石油工程建设有限公司 | A kind of petroleum conveyance conduit cutter device |
| CN111590107A (en) * | 2020-06-01 | 2020-08-28 | 曹玉英 | Workpiece clamping device of pipe clamp arc-shaped wall surface punching mechanism |
| CN212265949U (en) * | 2020-05-22 | 2021-01-01 | 常州市欣盛化工机械有限公司 | Hydraulic pipeline cutting equipment |
| CN212599102U (en) * | 2020-06-01 | 2021-02-26 | 苏州宏泉高压电容器有限公司 | Workpiece clamping device of pipe clamp arc-shaped wall surface punching mechanism |
| CN112935385A (en) * | 2021-03-16 | 2021-06-11 | 义乌市隐向贸易有限公司 | Pipe cutting machine capable of preventing pipe from being extruded during cutting |
| CN113102545A (en) * | 2021-02-09 | 2021-07-13 | 朱少强 | Production process of inner diameter protection type hot-rolled seamless steel tube |
| CN213730485U (en) * | 2020-12-01 | 2021-07-20 | 佛山市创瀛智能自动化设备有限责任公司 | Pipe fitting clamping device |
-
2021
- 2021-07-26 CN CN202110844546.5A patent/CN113600909A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581014A (en) * | 2012-02-07 | 2012-07-18 | 王国亮 | Process for producing thin-wall seamless steel tubes |
| CN103272845A (en) * | 2013-05-02 | 2013-09-04 | 长葛市一鸣机械有限公司 | Hot rolling process of small-bore ultra-thin-wall seamless steel tube |
| CN104438333A (en) * | 2014-12-10 | 2015-03-25 | 西北工业大学 | Tri-roller reciprocating type skew rolling technique of seamless pipes |
| CN209532256U (en) * | 2019-02-27 | 2019-10-25 | 中国石油工程建设有限公司 | A kind of petroleum conveyance conduit cutter device |
| CN212265949U (en) * | 2020-05-22 | 2021-01-01 | 常州市欣盛化工机械有限公司 | Hydraulic pipeline cutting equipment |
| CN111590107A (en) * | 2020-06-01 | 2020-08-28 | 曹玉英 | Workpiece clamping device of pipe clamp arc-shaped wall surface punching mechanism |
| CN212599102U (en) * | 2020-06-01 | 2021-02-26 | 苏州宏泉高压电容器有限公司 | Workpiece clamping device of pipe clamp arc-shaped wall surface punching mechanism |
| CN213730485U (en) * | 2020-12-01 | 2021-07-20 | 佛山市创瀛智能自动化设备有限责任公司 | Pipe fitting clamping device |
| CN113102545A (en) * | 2021-02-09 | 2021-07-13 | 朱少强 | Production process of inner diameter protection type hot-rolled seamless steel tube |
| CN112935385A (en) * | 2021-03-16 | 2021-06-11 | 义乌市隐向贸易有限公司 | Pipe cutting machine capable of preventing pipe from being extruded during cutting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7422445B1 (en) | 2023-09-26 | 2024-01-26 | 株式会社サンエイト | jig |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2009254199B2 (en) | Method for producing a large steel tube | |
| CN102784821B (en) | Coreless pipe-bending machine | |
| CN108673051B (en) | Numerical control rolling machine tool for rolling outer circle of torsion shaft | |
| CN113600909A (en) | Hydraulic pipe cutting equipment and hydraulic pipe production process | |
| CA2975784A1 (en) | Apparatus and method for mobile friction stir welding of two tubular structures | |
| US6757976B2 (en) | Method for manufacturing alloy wheel for automobile | |
| CN103586382A (en) | Method and device for manufacturing double axle tube blanks at one time in a local electric upsetting mode | |
| JP2021530363A (en) | Medium and small diameter thick metal pipes and their manufacturing methods | |
| CN213172048U (en) | Glass tube cutting device | |
| CN102151726A (en) | Hot bending forming process and equipment for bent pipe of steel pipe | |
| CN101576197B (en) | Semicircular plate used for oil drilling platform leg and manufacture process thereof | |
| AU2009308522B2 (en) | Arm material and a method for its manufacture | |
| CN102689123A (en) | Rolling head and method for realizing re-nanocrystallization welding by adopting same | |
| CN104708459A (en) | Device and method for machining connecting rod on fly-cutter machine tool | |
| CN109940337A (en) | The restorative procedure of rods of anchor chain ring bending machine center mould location hole | |
| CN209736894U (en) | Control rod sleeve welding device | |
| CN111097815A (en) | Seamless steel pipe straightening equipment | |
| CN107052659A (en) | Oil cylinder weld jig | |
| CN105855801B (en) | Support ring automatic assembly line | |
| CN204148316U (en) | Small-bend radius electric pipe bender | |
| CN108188481A (en) | A kind of high pressure resistant seamless effective internal reaming method | |
| CN218424816U (en) | Cold-drawn seamless steel tube production equipment | |
| CN113770190A (en) | Method for measuring and adjusting concentricity of extruding machine | |
| CN212525521U (en) | Seamless steel pipe straightening equipment | |
| CN211680899U (en) | Laser cladding rolling composite processing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211105 |