CN111730424A - High-temperature alloy pipe surface rapid polishing device - Google Patents
High-temperature alloy pipe surface rapid polishing device Download PDFInfo
- Publication number
- CN111730424A CN111730424A CN202010658306.1A CN202010658306A CN111730424A CN 111730424 A CN111730424 A CN 111730424A CN 202010658306 A CN202010658306 A CN 202010658306A CN 111730424 A CN111730424 A CN 111730424A
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- Prior art keywords
- fixed plate
- rotating cylinder
- base
- temperature alloy
- plate
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Classifications
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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
- B24B5/04—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 cylindrical surfaces externally
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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
- B24B47/00—Drives or gearings; Equipment therefor
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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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
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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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention belongs to the technical field of metal processing equipment, and relates to a high-temperature alloy pipe surface quick polishing device which comprises a base, wherein a fixed plate a is arranged at one end of the top surface of the base, and a movable plate capable of horizontally moving relative to the fixed plate a is arranged at the other side of the base; the fixed plate a and the moving plate are respectively provided with a rotating cylinder in a rotating manner, the axial outer end of each rotating cylinder is provided with a motor b, the output shaft of each motor b is connected with a screw rod a arranged in the rotating cylinder, the axial inner end of each rotating cylinder is provided with the fixed plate b, and one side, close to the fixed plate b, of each screw rod a is connected with a tensioning assembly; and a driving device is arranged on the fixed plate a to drive the rotating cylinder on the fixed plate a to rotate. The polishing device can be suitable for steel pipes with different lengths and different inner diameters, and is wide in application range.
Description
Technical Field
The invention belongs to the technical field of metal processing equipment, and relates to a high-temperature alloy pipe surface rapid polishing device.
Background
The high-temperature alloy is a metal material which takes iron, nickel and cobalt as the base and can work for a long time at the high temperature of more than 600 ℃ under the action of certain stress, has excellent high-temperature strength, good oxidation resistance and hot corrosion resistance, good comprehensive performances such as fatigue property, fracture toughness and the like, is also called as super alloy and is mainly applied to the fields of aerospace and energy.
At present, when the surface of the high-temperature alloy pipe is polished, the two ends of the high-temperature alloy pipe are clamped by a clamp generally, then the high-temperature alloy pipe is rotated highly, and then the outer side wall of the high-temperature alloy pipe is polished by a polishing piece.
Therefore, we propose a high-temperature alloy pipe surface rapid polishing device.
Disclosure of Invention
Aiming at the problems, the invention provides the high-temperature alloy pipe surface rapid polishing device which can be suitable for steel pipes with different lengths and different inner diameters and has a wide application range.
According to the technical scheme of the invention: the utility model provides a quick grinding device in high temperature alloy tubular product surface which characterized in that: the device comprises a base, wherein a fixed plate a is arranged at one end of the top surface of the base, and a movable plate capable of horizontally moving relative to the fixed plate a is arranged at the other side of the base;
the fixed plate a and the moving plate are respectively provided with a rotating cylinder in a rotating manner, the axial outer end of each rotating cylinder is provided with a motor b, the output shaft of each motor b is connected with a screw rod a arranged in the rotating cylinder, the axial inner end of each rotating cylinder is provided with the fixed plate b, and one side, close to the fixed plate b, of each screw rod a is connected with a tensioning assembly;
a driving device is arranged on the fixed plate a to drive the rotating cylinder on the fixed plate a to rotate;
the inner side surface of the fixed plate a is also provided with an electric hydraulic telescopic column, the front end of the telescopic column of the electric hydraulic telescopic column is connected with a moving block a, the moving block a is supported on the surface of the base through a roller, and the upper part of the moving block a is connected with an arc polishing plate through a support rod;
the moving plate reciprocates along the surface of the base through the moving plate driving assembly.
As a further improvement of the invention, the tightening assembly comprises a moving block b, the moving block b is in threaded connection with the lead screw a, the radial outer end of the moving block b is connected with a connecting rod b, the outer end of the connecting rod b extends to the outer end of the rotating cylinder and is connected with a lantern ring sleeved on the rotating cylinder, a plurality of connecting rods a are uniformly and rotatably connected to the lantern ring in a circumferential manner, the other end of each connecting rod a is rotatably connected with a T-shaped block, and the connecting rods b can reciprocate in a groove body axially formed along the surface of the rotating cylinder;
the T-shaped blocks are connected in a sliding fit mode in the radial grooves in the fixing plates b, supporting rods are fixed on the outer radial end faces of the T-shaped blocks, and the outer radial ends of the supporting rods are connected with the arc-shaped plates.
As a further improvement of the invention, the moving plate driving assembly comprises a sliding block fixed at the lower end of the moving plate and a screw rod b rotatably arranged in a sliding groove on the surface of the base, the sliding block is in threaded fit connection with the screw rod b, and the screw rod b is driven by a motor c arranged on the end surface of the base.
As a further improvement of the invention, a water leakage pipe is arranged on the base corresponding to the bottom of the sliding chute and extends to the bottom of the sliding chute.
As a further improvement of the invention, the driving device comprises a motor a arranged on the fixed plate a, a gear a is arranged on an output shaft of the motor a, the gear a is meshed with a gear b arranged on an adjacent rotating cylinder, and the gear b rotates to drive the rotating cylinder to rotate.
As a further improvement of the invention, the connecting pipe is arranged on the moving block a, the spray head is arranged at the upper end of the connecting pipe, and the spray opening of the spray head faces the arc polishing piece.
As a further improvement of the invention, the bottom surface of the base is provided with a support leg.
The invention has the technical effects that: the high-temperature alloy pipe surface quick polishing device is reasonable and ingenious in structure, when the high-temperature alloy pipe surface quick polishing device is used, a high-temperature alloy pipe can be fixed from the inside of the pipe, the pipe does not need to be fixed from the outer side walls of the two ends of the high-temperature alloy pipe, the arc-shaped polishing piece can polish the outer side wall of the high-temperature alloy pipe without dead angles, the polishing effect of the high-temperature alloy pipe is favorably improved, in addition, the high-temperature alloy pipe surface quick polishing device can fully automatically control polishing, the polishing efficiency is high, and meanwhile.
Drawings
Fig. 1 is a schematic structural diagram of a high-temperature alloy pipe surface rapid polishing device provided by the invention.
Fig. 2 is a schematic structural diagram at a in fig. 1.
Fig. 3 is a schematic view of a connection structure of a support rod and an arc-shaped plate in the high-temperature alloy pipe surface rapid polishing device provided by the invention.
Description of reference numerals: 1. a base; 2. a fixed plate a; 3. a motor a; 4. a gear a; 5. a gear b; 6. a motor b; 7. a rotating cylinder; 8. a screw rod a; 9. a fixing plate b; 10. an arc-shaped plate; 11. a connecting rod a; 12. arc polishing and grinding; 13. an electro-hydraulic telescopic column; 14. a water pump; 15. moving block a; 16. a roller; 17. a support bar; 18. a connecting pipe; 19. a spray head; 20. a screw rod b; 21. a slider; 22. a controller; 23. a motor c; 24. a support leg; 25. a water leakage pipe; 26. a rotating member; 27. moving the plate; 28. a strut; 29. a T-shaped block; 30. a rotating shaft; 31. a collar; 32. a moving block b; 33. a connecting rod b; 34. and a limiting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in fig. 1 to 3, the invention relates to a high-temperature alloy pipe surface rapid polishing device, which comprises a base 1, wherein one end of the top surface of the base 1 is provided with a fixed plate a2, and the other side of the base 1 is provided with a movable plate 27 capable of horizontally moving relative to the fixed plate a 2. By adjusting the distance between the moving plate 27 and the fixed plate a2, the product of the invention can be suitable for high-temperature alloy pipes with different lengths, so as to realize the polishing operation of the corresponding high-temperature alloy pipes.
The fixed plate a2 and the moving plate 27 are respectively rotatably provided with a rotating cylinder 7, it can be understood that a rotating element 26 is respectively arranged between the two rotating cylinders 7 and the fixed plate a2 and the moving plate 27, the rotating element 26 can be selected from bearings, and the bearings are mounted at corresponding mounting positions on the moving plate 27 and the fixed plate a 2.
A motor b6 is mounted at the axial outer end of each rotating cylinder 7, the output shaft of the motor b6 is connected with a screw rod a8 arranged in the rotating cylinder 7, a fixing plate b9 is arranged at the axial inner end of the rotating cylinder 7, and a tightening component is connected to one side, close to the fixing plate b9, of the screw rod a 8; during specific production, a groove corresponding to the rotating member 26 is formed in the fixed plate b9 to reduce friction between the screw rod a8 and the fixed plate b 9.
A driving device is arranged on the fixed plate a2 to drive the rotary drum 7 on the fixed plate a2 to rotate; the inner side surface of the fixed plate a2 is also provided with an electric hydraulic telescopic column 13, the front end of the telescopic column of the electric hydraulic telescopic column 13 is connected with a moving block a15, a moving block a15 is supported on the surface of the base 1 through a roller 16, the friction force between the moving block a15 and the top of the base 1 can be effectively reduced through the roller 16, and the upper part of the moving block a15 is connected with the arc polishing disc 12 through a support rod 17; the moving plate 27 is reciprocated along the surface of the base 1 by a moving plate driving unit. It can be understood that, in order to adapt to the steel pipes to be polished with different diameter specifications, the length of the support rod 17 can be adjusted so as to be effectively suitable for polishing of the steel pipes with different diameters, and in the specific setting, the support rod 17 can be installed on the piston rod of the hydraulic cylinder, and the hydraulic cylinder is installed on the movable block a 15.
The tightening assembly comprises a moving block b32, the moving block b32 is in threaded connection with a lead screw a8, the radial outer end of the moving block b32 is connected with a connecting rod b33, the outer end of the connecting rod b33 extends to the outer end of the rotating cylinder 7 and is connected with a lantern ring 31 sleeved on the rotating cylinder 7, a plurality of connecting rods a11 are uniformly and rotatably connected to the lantern ring 31 in a circumferential manner, the other end of each connecting rod a11 is rotatably connected with a T-shaped block 29, and the connecting rod b33 can reciprocate in a groove body axially formed in the surface of the rotating cylinder 7; the tightening component is used for tightening the high-temperature alloy pipe to be polished so as to realize subsequent surface polishing operation. In the specific design, the T-shaped block 29 and the collar 31 are both provided with a groove, and both ends of the connecting rod a11 are respectively connected with the inner side wall of the groove through the rotating shaft 30.
The T-shaped block 29 is connected with a radial groove on the fixing plate b9 in a sliding fit mode, the radial outer end face of the T-shaped block 29 is fixed with the supporting rod 28, and the radial outer end of the supporting rod 28 is connected with the arc-shaped plate 10. During specific production, the fixing plate b9 is provided with four T-shaped blocks 29, and the four T-shaped blocks 29 are uniformly distributed in a circumferential shape.
The moving plate driving assembly comprises a slide block 21 fixed at the lower end of the moving plate 27 and a screw rod b20 rotatably arranged in a sliding groove on the surface of the base 1, the slide block 21 is in threaded fit connection with the screw rod b20, and the screw rod b20 is driven by a motor c23 arranged on the end surface of the base 1; a water leakage pipe 25 is arranged on the base 1 corresponding to the bottom of the sliding chute, and the water leakage pipe 25 extends to the bottom of the sliding chute. The motor c23 is electrically connected to a controller 22 mounted on the moving plate 27, and the controller 22 controls the operation of the motor c 23.
The driving device comprises a motor a3 arranged on a fixed plate a2, a gear a4 is arranged on an output shaft of the motor a3, the gear a4 is meshed with a gear b5 arranged on an adjacent rotating drum 7, and a gear b5 rotates to drive the rotating drum 7 to rotate.
A connecting pipe 18 is arranged on the moving block a15, a spray head 19 is arranged at the upper end of the connecting pipe 18, and the spray opening of the spray head 19 faces the arc-shaped polishing sheet 12. When the water pump is specifically arranged, the water pump 14 is installed at one end of the base 1 along the length direction, and the output end of the water pump 14 is connected with the inlet end of the connecting pipe 18. The spray head 19 performs a spraying operation on the polished position during operation to reduce dust pollution.
The bottom surface of the base 1 is provided with a support leg 24 to realize reliable and stable supporting operation of the invention. In order to avoid the high-temperature alloy pipe from generating transverse motion during the polishing operation, a limiting plate 34 is fixedly sleeved on the outer side wall of each rotating cylinder 7 so as to position the end face of the high-temperature alloy pipe and avoid the pipe from generating transverse motion.
As shown in FIGS. 1 to 3, in the invention, when a high-temperature alloy pipe needs to be polished, one end of the high-temperature alloy pipe abuts against a limit plate 34 arranged on a fixed plate a2, and a fixed plate b9 arranged on a fixed plate a2 is ensured to be positioned inside the high-temperature alloy pipe, then a motor c23 is controlled to regulate a moving plate 27 to move towards the direction of the fixed plate a2 until the limit plate 34 arranged on the moving plate 27 abuts against the other end of the high-temperature alloy pipe, another fixed plate b9 is positioned inside the high-temperature alloy pipe, then a motor b6 is regulated to clamp the inside of the high-temperature alloy pipe, then a cambered polishing disc 12 is regulated to contact with the outer side wall of the high-temperature alloy pipe, finally the motor a3 is started to rotate fast to drive the high-temperature alloy pipe to rotate fast on the top of a base 1, and during polishing, the electric hydraulic telescopic column 13 regulates, and the spray head 19 sprays water to the grinding part, so that dust pollution is avoided. The device can be fixed high temperature alloy tubular product from the inside of high temperature alloy tubular product, need not fix high temperature alloy tubular product from the both ends lateral wall of high temperature alloy tubular product, and arc polishing piece 12 can carry out polishing at no dead angle to the lateral wall of high temperature alloy tubular product, is favorable to improving the effect of polishing to high temperature alloy tubular product, and in addition, this quick grinding device in high temperature alloy tubular product surface can realize full automatic control and polish, and it is efficient to polish, convenient to use simultaneously.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a quick grinding device in high temperature alloy tubular product surface which characterized in that: the device comprises a base (1), wherein a fixed plate a (2) is arranged at one end of the top surface of the base (1), and a movable plate (27) capable of horizontally moving relative to the fixed plate a (2) is arranged at the other side of the base (1);
the fixed plate a (2) and the movable plate (27) are respectively provided with a rotating cylinder (7) in a rotating mode, the axial outer end of each rotating cylinder (7) is provided with a motor b (6), the output shaft of each motor b (6) is connected with a screw rod a (8) arranged in each rotating cylinder (7), the axial inner end of each rotating cylinder (7) is provided with a fixed plate b (9), and one side, close to the fixed plate b (9), of each screw rod a (8) is connected with a tightening assembly;
a driving device is arranged on the fixed plate a (2) to drive the rotating cylinder (7) on the fixed plate a (2) to rotate;
the inner side surface of the fixed plate a (2) is also provided with an electric hydraulic telescopic column (13), the front end of the telescopic column of the electric hydraulic telescopic column (13) is connected with a moving block a (15), the moving block a (15) is supported on the surface of the base (1) through a roller (16), and the upper part of the moving block a (15) is connected with an arc polishing plate (12) through a support rod (17);
the moving plate (27) reciprocates along the surface of the base (1) through a moving plate driving assembly.
2. The rapid grinding device for the surface of the high-temperature alloy pipe as claimed in claim 1, wherein: the tightening assembly comprises a moving block b (32), the moving block b (32) is in threaded connection with the lead screw a (8), the radial outer end of the moving block b (32) is connected with a connecting rod b (33), the outer end of the connecting rod b (33) extends to the outer end of the rotating cylinder (7) and is connected with a lantern ring (31) sleeved on the rotating cylinder (7), a plurality of connecting rods a (11) are uniformly and rotatably connected to the lantern ring (31) in a circumferential manner, the other end of each connecting rod a (11) is rotatably connected with a T-shaped block (29), and the connecting rod b (33) can reciprocate in a groove body formed in the surface of the rotating cylinder (7) along the axial direction;
t type piece (29) sliding fit connects in the radial groove on fixed plate b (9), the radial outer terminal surface fixed branch (28) of T type piece (29), and arc (10) are connected to the radial outer end of branch (28).
3. The rapid grinding device for the surface of the high-temperature alloy pipe as claimed in claim 1, wherein: the moving plate driving assembly comprises a sliding block (21) fixed at the lower end of the moving plate (27) and a screw rod b (20) rotatably arranged in a sliding groove in the surface of the base (1), the sliding block (21) is in threaded fit connection with the screw rod b (20), and the screw rod b (20) is driven by a motor c (23) installed on the end face of the base (1).
4. The rapid grinding device for the surface of the high-temperature alloy pipe as claimed in claim 3, wherein: a water leakage pipe (25) is arranged on the base (1) corresponding to the bottom of the sliding chute, and the water leakage pipe (25) extends to the bottom of the sliding chute.
5. The rapid grinding device for the surface of the high-temperature alloy pipe as claimed in claim 1, wherein: the driving device comprises a motor a (3) arranged on the fixing plate a (2), a gear a (4) is arranged on an output shaft of the motor a (3), the gear a (4) is meshed with a gear b (5) arranged on an adjacent rotating cylinder (7), and the gear b (5) rotates to drive the rotating cylinder (7) to rotate.
6. The rapid grinding device for the surface of the high-temperature alloy pipe as claimed in claim 1, wherein: the moving block a (15) is provided with a connecting pipe (18), the upper end of the connecting pipe (18) is provided with a spray head (19), and a spray opening of the spray head (19) faces the arc-shaped polishing sheet (12).
7. The rapid grinding device for the surface of the high-temperature alloy pipe as claimed in claim 1, wherein: the bottom surface of the base (1) is provided with a supporting leg (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010658306.1A CN111730424A (en) | 2020-07-09 | 2020-07-09 | High-temperature alloy pipe surface rapid polishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010658306.1A CN111730424A (en) | 2020-07-09 | 2020-07-09 | High-temperature alloy pipe surface rapid polishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111730424A true CN111730424A (en) | 2020-10-02 |
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ID=72655919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010658306.1A Pending CN111730424A (en) | 2020-07-09 | 2020-07-09 | High-temperature alloy pipe surface rapid polishing device |
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| CN (1) | CN111730424A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621544A (en) * | 2020-12-10 | 2021-04-09 | 江西瑞斯科救援科技有限公司 | Clamping equipment for processing fire hose coupling buckle |
| CN112643498A (en) * | 2020-12-22 | 2021-04-13 | 安徽智恒装配式消防科技有限公司 | Grinding device for pipe machining |
| CN112676936A (en) * | 2020-12-31 | 2021-04-20 | 刘华 | Pipeline head end polishing equipment for petroleum pipeline installation and use method |
| CN113020155A (en) * | 2021-03-05 | 2021-06-25 | 张生进 | Tubular product inner wall cleaning device based on rotatory principle of striking off |
| CN113070753A (en) * | 2021-03-01 | 2021-07-06 | 蔡涛 | Auto-parts grinding device |
| CN113478362A (en) * | 2021-09-07 | 2021-10-08 | 江苏隆凯森机械科技有限公司 | Cast iron flange pipe joint manufacturing automatic processing machinery |
| CN115404425A (en) * | 2022-07-08 | 2022-11-29 | 李宁 | Device for improving coating quality of hot-dip galvanized steel pipe |
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| CN206702781U (en) * | 2017-05-12 | 2017-12-05 | 洪满丽 | A kind of plastic tube mouth of pipe sanding apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621544A (en) * | 2020-12-10 | 2021-04-09 | 江西瑞斯科救援科技有限公司 | Clamping equipment for processing fire hose coupling buckle |
| CN112643498A (en) * | 2020-12-22 | 2021-04-13 | 安徽智恒装配式消防科技有限公司 | Grinding device for pipe machining |
| CN112643498B (en) * | 2020-12-22 | 2022-04-08 | 安徽智恒装配式消防科技有限公司 | Grinding device for pipe machining |
| CN112676936A (en) * | 2020-12-31 | 2021-04-20 | 刘华 | Pipeline head end polishing equipment for petroleum pipeline installation and use method |
| CN113070753A (en) * | 2021-03-01 | 2021-07-06 | 蔡涛 | Auto-parts grinding device |
| CN113020155A (en) * | 2021-03-05 | 2021-06-25 | 张生进 | Tubular product inner wall cleaning device based on rotatory principle of striking off |
| CN113478362A (en) * | 2021-09-07 | 2021-10-08 | 江苏隆凯森机械科技有限公司 | Cast iron flange pipe joint manufacturing automatic processing machinery |
| CN113478362B (en) * | 2021-09-07 | 2021-12-10 | 江苏隆凯森机械科技有限公司 | Cast iron flange pipe joint manufacturing automatic processing machinery |
| CN115404425A (en) * | 2022-07-08 | 2022-11-29 | 李宁 | Device for improving coating quality of hot-dip galvanized steel pipe |
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Application publication date: 20201002 |