CN210172856U - Metal material processing welding set - Google Patents
Metal material processing welding set Download PDFInfo
- Publication number
- CN210172856U CN210172856U CN201920794214.9U CN201920794214U CN210172856U CN 210172856 U CN210172856 U CN 210172856U CN 201920794214 U CN201920794214 U CN 201920794214U CN 210172856 U CN210172856 U CN 210172856U
- Authority
- CN
- China
- Prior art keywords
- mounting plate
- connecting rod
- lead screw
- nut
- bearing
- 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.)
- Active
Links
Images
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model relates to the technical field of machining, in particular to a metal material processing and welding device which is convenient for rotating a steel pipe to be welded, improves the working efficiency and the practicability; the welding gun comprises a first mounting plate and a welding gun, wherein the first mounting plate and the welding gun are independent parts; still include the second mounting panel, the apparatus further comprises a rotating shaft, second fixed block and first nut, the bottom and the left side on first mounting panel top of second mounting panel are connected, the left end of second mounting panel is provided with first mounting groove, be provided with first bearing in the first mounting groove, the right-hand member of second mounting panel is provided with the second mounting groove, the inside of second mounting groove is provided with the second bearing, the right-hand member of pivot passes first bearing in proper order, second mounting panel and second bearing stretch out to the right-hand member of second mounting panel is external, and the inner circle of first bearing and second bearing all with the circumference wall connection of pivot, the left half region of pivot is provided with first fixed block, first fixed block is located the right side of second mounting panel.
Description
Technical Field
The utility model relates to a machining's technical field especially relates to a metal material processing welding set.
Background
As is well known, a metal material working welding apparatus is an auxiliary apparatus for welding steel pipes, which is widely used in the field of machining; the existing metal material processing and welding device comprises a first mounting plate and a welding gun, wherein the first mounting plate and the welding gun are independent parts; when the existing metal material processing and welding device is used, firstly, a steel pipe to be welded is placed on a first mounting plate, then a welding gun is connected with an external welding control device, and then the steel pipe to be welded is welded through the welding gun; present metal material processing welding set discovers in using, and it is comparatively inconvenient manually to treat welded steel pipe at the top rotation of first mounting panel, influences work efficiency, leads to the practicality relatively poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a convenient rotation treats welding steel pipe, improves work efficiency, improves the metal material processing welding set of practicality.
The utility model discloses a metal material processing welding device, which comprises a first mounting plate and a welding gun, wherein the first mounting plate and the welding gun are independent parts; the bottom end of the second mounting plate is connected with the left side of the top end of the first mounting plate, the left end of the second mounting plate is provided with a first mounting groove, a first bearing is arranged in the first mounting groove, the right end of the second mounting plate is provided with a second mounting groove, a second bearing is arranged in the second mounting groove, the right end of the rotating shaft sequentially penetrates through the first bearing, the second mounting plate and the second bearing and extends out of the right end of the second mounting plate, and the inner circles of the first bearing and the second bearing are connected with the outer wall of the circumference of the rotating shaft, a first fixing block is arranged in the left half area of the rotating shaft, the first fixing block is located on the right side of the second mounting plate, the second fixing block is sleeved on the rotating shaft in a sliding mode, threads are arranged in the right half area of the rotating shaft, a first nut is sleeved on the right half area of the rotating shaft in a threaded mode, and the left end of the first nut is tightly attached to the right end of the second fixing block.
The utility model relates to a metal material processing and welding device, which also comprises a third mounting plate, four groups of pillars, a first connecting rod, a second connecting rod, a fourth mounting plate, four groups of mounting rods, a motor, a speed reducer, a third connecting rod, a fourth connecting rod and a first lead screw, wherein the left front side, the left rear side, the right front side and the right rear side of the bottom end of the third mounting plate are respectively connected with the top ends of the four groups of pillars, the bottom ends of the four groups of pillars are respectively connected with the left front side, the left rear side, the right front side and the right rear side of the top end of the first mounting plate, the top end of the first connecting rod is connected with the middle part of the bottom end of the third mounting plate, the bottom end of the first connecting rod is rotatably connected with the top end of the second connecting rod, the bottom end of the second connecting rod is provided with a fan, the left front side, the left rear side, the right front side and the right rear side of the top end of the fourth mounting, the top of motor is connected with the left side of fourth mounting panel bottom, and the top of speed reducer is connected with the right side of fourth mounting panel bottom, and the right part output of motor is connected with the left part input of speed reducer, and the anterior output of speed reducer is connected with the upside of third connecting rod rear end, and the downside of third connecting rod front end is connected with the left side of fourth connecting rod rear end, and the right-hand member of fourth connecting rod is connected with the middle part of second connecting rod left end.
The utility model discloses a metal material processing welding set, still include first lead screw, the screwed pipe, fifth mounting panel and second lead screw, the bottom of first lead screw is connected with the right side on first mounting panel top, the second region of the inside of screwed pipe be provided with first lead screw assorted screw thread, the top of first lead screw is inserted and the spiral shell adorns to the bottom of screwed pipe inside, the bottom of fifth mounting panel is connected with the top of second lead screw, be provided with on the second lead screw with first lead screw soon to opposite screw thread, the first region of screwed pipe inside be provided with second lead screw assorted screw thread, the bottom of second lead screw is inserted and the spiral shell adorns to the top of screwed pipe inside, the front side and the rear side on fifth mounting panel top all are provided with the gyro wheel, and two sets of gyro wheels all paste tightly with the pivot.
The utility model discloses a metal material processing welding set still includes second nut and third nut, and second nut spiral shell suit cover is established on first lead screw to the top of second nut pastes tightly with the bottom of screwed pipe, and third nut spiral shell suit cover is established on the second lead screw, and the bottom of third nut pastes tightly with the top of screwed pipe.
The utility model discloses a metal material processing welding set, left front side, left rear side, right front side and the right rear side of first mounting panel bottom all are provided with the universal wheel.
The utility model discloses a metal material processing welding set still includes four group's screwed pipes and four threaded rods of group, and the top of four group's screwed pipes is connected with left front side, left rear side, right front side and the right rear side of first mounting panel bottom respectively, and the top of four group's threaded rods is inserted and spiral shell dress to the bottom of four group's screwed pipes inside.
The utility model discloses a metal material processing welding set, the bottom of four group's threaded rods all is provided with the cushion.
The utility model discloses a metal material processing welding set, the left end of pivot is provided with the disc, and the left end of disc is provided with the handle.
Compared with the prior art, the beneficial effects of the utility model are that: at first, the first nut is screwed out from the rotating shaft, the second fixed block is taken down, then, a steel pipe to be welded is sleeved in the rotating shaft, the second fixed block is sleeved in the rotating shaft, the first nut is sleeved in the rotating shaft, the left end of the first nut is tightly attached to the right end of the second fixed block, the first fixed block and the second fixed block are fixed on the rotating shaft, the rotating shaft is rotated, the welded steel pipe is welded through a welding gun, the steel pipe to be welded is convenient to rotate, the working efficiency is improved, and the practicability is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged schematic view of the second mounting plate connected to a shaft;
FIG. 3 is an enlarged view of the connection of the first connecting rod and the second connecting rod;
FIG. 4 is an enlarged schematic view of the fifth mounting plate coupled to rollers or the like;
in the drawings, the reference numbers: 1. a first mounting plate; 2. a welding gun; 3. a second mounting plate; 4. a first bearing; 5. a second bearing; 6. a rotating shaft; 7. a first fixed block; 8. a second fixed block; 9. a first nut; 10. a third mounting plate; 11. a pillar; 12. a first connecting rod; 13. a second connecting rod; 14. a fan; 15. a fourth mounting plate; 16. mounting a rod; 17. a motor; 18. a speed reducer; 19. a third connecting rod; 20. a fourth connecting rod; 21. a first lead screw; 22. a solenoid; 23. a fifth mounting plate; 24. a second lead screw; 25. a roller; 26. a second nut; 27. a third nut; 28. a universal wheel; 29. a threaded pipe; 30. a threaded rod; 31. cushion blocks; 32. a disc; 33. a handle.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 4, the welding device for processing metal materials of the present invention includes a first mounting plate 1 and a welding gun 2, wherein the first mounting plate 1 and the welding gun 2 are independent components; the novel bearing assembly further comprises a second mounting plate 3, a rotating shaft 6, a second fixing block 8 and a first nut 9, wherein the bottom end of the second mounting plate 3 is connected with the left side of the top end of the first mounting plate 1, the left end of the second mounting plate 3 is provided with a first mounting groove, a first bearing 4 is arranged in the first mounting groove, the right end of the second mounting plate 3 is provided with a second mounting groove, a second bearing 5 is arranged in the second mounting groove, the right end of the rotating shaft 6 sequentially penetrates through the first bearing 4, the second mounting plate 3 and the second bearing 5 and extends out of the right end of the second mounting plate 3, the inner rings of the first bearing 4 and the second bearing 5 are connected with the outer circumferential wall of the rotating shaft 6, the first fixing block 7 is arranged in the left half area of the rotating shaft 6, the first fixing block 7 is positioned on the right side of the second mounting plate 3, the second fixing block 8 is slidably sleeved on, the first nut 9 is sleeved on the right half area of the rotating shaft 6 in a threaded manner, and the left end of the first nut 9 is tightly attached to the right end of the second fixing block 8; at first, the first nut is screwed out from the rotating shaft, the second fixed block is taken down, then, a steel pipe to be welded is sleeved in the rotating shaft, the second fixed block is sleeved in the rotating shaft, the first nut is sleeved in the rotating shaft, the left end of the first nut is tightly attached to the right end of the second fixed block, the first fixed block and the second fixed block are fixed on the rotating shaft, the rotating shaft is rotated, the welded steel pipe is welded through a welding gun, the steel pipe to be welded is convenient to rotate, the working efficiency is improved, and the practicability is improved.
The utility model relates to a metal material processing and welding device, which also comprises a third mounting plate 10, four groups of pillars 11, a first connecting rod 12, a second connecting rod 13, a fourth mounting plate 15, four groups of mounting rods 16, a motor 17, a speed reducer 18, a third connecting rod 19, a fourth connecting rod 20 and a first screw 21, wherein the left front side, the left rear side, the right front side and the right rear side of the bottom end of the third mounting plate 10 are respectively connected with the top ends of the four groups of pillars 11, the bottom ends of the four groups of pillars 11 are respectively connected with the left front side, the left rear side, the right front side and the right rear side of the top end of the first mounting plate 1, the top end of the first connecting rod 12 is connected with the middle part of the bottom end of the third mounting plate 10, the bottom end of the first connecting rod 12 is rotatably connected with the top end of the second connecting rod 13, the bottom end of the second connecting rod 13 is provided with a fan 14, the left front side, the left rear side, the top ends of the four groups of mounting rods 16 are all connected with the left side of the bottom end of the third mounting plate 10, the top end of the motor 17 is connected with the left side of the bottom end of the fourth mounting plate 15, the top end of the speed reducer 18 is connected with the right side of the bottom end of the fourth mounting plate 15, the right output end of the motor 17 is connected with the left input end of the speed reducer 18, the front output end of the speed reducer 18 is connected with the upper side of the rear end of the third connecting rod 19, the lower side of the front end of the third connecting rod 19 is connected with the left side of the rear end of the fourth connecting rod 20, and the right end of the fourth connecting; through opening the motor, the motor passes through the speed reducer and drives the third connecting rod rotation, and the third connecting rod rotates and makes the horizontal reciprocating motion of fan through fourth connecting rod and second connecting rod transmission, opens the fan, and the fan is horizontal reciprocal to be cooled down to the steel pipe of welding completion of below, improves the practicality.
The utility model discloses a metal material processing welding set, still include first lead screw 21, screwed pipe 22, fifth mounting panel 23 and second lead screw 24, the bottom of first lead screw 21 is connected with the right side on 1 top of first mounting panel, the second area of the inside of screwed pipe 22 is provided with the screw thread that matches with first lead screw 21, the top of first lead screw 21 inserts and the spiral dress to the bottom inside of screwed pipe 22, the bottom of fifth mounting panel 23 is connected with the top of second lead screw 24, be provided with on the second lead screw 24 with first lead screw 21 revolve to opposite screw thread, the first area of the inside of screwed pipe 22 is provided with the screw thread that matches with second lead screw 24, the bottom of second lead screw 24 inserts and the spiral dress to the top of screwed pipe 22 inside, the front side and the rear side on fifth mounting panel 23 top all are provided with gyro wheel 25, and two sets of gyro wheel 25 all paste tightly with pivot 6; the two groups of rollers are tightly attached to the rotating shaft by rotating the solenoid, so that the supporting effect of the right end of the rotating shaft is improved, and the practicability is improved.
The utility model discloses a metal material processing welding set still includes second nut 26 and third nut 27, and the spiral shell of second nut 26 overlaps and is established on first lead screw 21 to the top of second nut 26 pastes tightly with the bottom of screwed pipe 22, and the spiral shell of third nut 27 overlaps and is established on second lead screw 24, and the bottom of third nut 27 pastes tightly with the top of screwed pipe 22; through rotating second nut and third nut to paste tightly with the screwed pipe, improve the connection stability of first lead screw, screwed pipe and second lead screw, improve the practicality.
The utility model discloses a metal material processing and welding device, the left front side, the left back side, the right front side and the right back side of the bottom end of a first mounting plate 1 are all provided with universal wheels 28; through the arrangement, the whole body is convenient to move, and the adaptability is improved.
The utility model discloses a metal material processing welding set still includes four group's screwed pipes 29 and four group's threaded rods 30, and the top of four group's screwed pipe 29 is connected with the left front side, left rear side, right front side and the right rear side of first mounting panel 1 bottom respectively, and the top of four group's threaded rods 30 inserts and spiral shell dress to the inside bottom of four group's screwed pipe 29; the four groups of threaded rods are rotated to the universal wheels to be separated from the ground, so that the whole position is conveniently fixed, and the practicability is improved.
In the metal material processing and welding device of the utility model, the bottom ends of four groups of threaded rods 30 are provided with cushion blocks 31; through the arrangement, the friction loss of the ground to the four groups of threaded rods is reduced.
The utility model relates to a metal material processing and welding device, a disc 32 is arranged at the left end of a rotating shaft 6, and a handle 33 is arranged at the left end of the disc 32; through the arrangement, the rotating shaft is convenient to rotate, and convenience is improved.
The utility model discloses a metal material processing welding set, it is at the during operation, at first the second fixed block is taken off with first nut screw-out in the axis of rotation, later will treat welded steel pipe suit in the pivot, with second fixed block suit in the pivot, establish first nut screw suit in the pivot and make the left end of first nut and the right-hand member of second fixed block paste tightly and make first fixed block and second fixed block will treat welded steel pipe and fix in the pivot, rotate the pivot and treat welded steel pipe through welder and weld, the convenient rotation treats welded steel pipe, later open the motor, the motor passes through the speed reducer and drives the rotation of third connecting rod, the third connecting rod rotates and makes fan horizontal reciprocating motion through fourth connecting rod and second connecting rod transmission, open the fan, the fan horizontal reciprocal to the welding completion's of below steel pipe cool down can.
The installation mode, the connection mode or the setting mode of the metal material processing and welding device of the utility model are common mechanical modes, and the metal material processing and welding device can be implemented as long as the beneficial effects can be achieved; the utility model discloses a metal material processing welding set's fan and motor are purchase on the market, and this technical staff only need according to its subsidiary service instruction install and operate can in the industry.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A metal material processing and welding device comprises a first mounting plate (1) and a welding gun (2), wherein the first mounting plate (1) and the welding gun (2) are independent parts; the bearing is characterized by further comprising a second mounting plate (3), a rotating shaft (6), a second fixing block (8) and a first nut (9), wherein the bottom end of the second mounting plate (3) is connected with the left side of the top end of the first mounting plate (1), the left end of the second mounting plate (3) is provided with a first mounting groove, a first bearing (4) is arranged in the first mounting groove, the right end of the second mounting plate (3) is provided with a second mounting groove, a second bearing (5) is arranged in the second mounting groove, the right end of the rotating shaft (6) sequentially penetrates through the first bearing (4), the second mounting plate (3) and the second bearing (5) and extends out of the right end of the second mounting plate (3), inner rings of the first bearing (4) and the second bearing (5) are connected with the outer circumferential wall of the rotating shaft (6), the left half area of the rotating shaft (6) is provided with the first fixing block (7), and the first fixing block (7) is positioned on the right side of the, second fixed block (8) slidable suit is on pivot (6), and the right half region of pivot (6) is provided with the screw thread, and first nut (9) spiral shell suit is established in the right half region of pivot (6) to the left end of first nut (9) pastes tightly with the right-hand member of second fixed block (8).
2. The metal material processing and welding device as recited in claim 1, further comprising a third mounting plate (10), four groups of pillars (11), a first connecting rod (12), a second connecting rod (13), a fourth mounting plate (15), four groups of mounting rods (16), a motor (17), a speed reducer (18), a third connecting rod (19), a fourth connecting rod (20) and a first lead screw (21), wherein the left front side, the left rear side, the right front side and the right rear side of the bottom end of the third mounting plate (10) are respectively connected with the top ends of the four groups of pillars (11), the bottom ends of the four groups of pillars (11) are respectively connected with the left front side, the left rear side, the right front side and the right rear side of the top end of the first mounting plate (1), the top end of the first connecting rod (12) is connected with the middle portion of the bottom end of the third mounting plate (10), the bottom end of the first connecting rod (12) is rotatably connected with the top end of the second connecting rod (13), the bottom end of the second connecting rod (13) is provided with a fan (14), the left front side and the left rear side of the top end of the fourth mounting plate (15), the right front side and the right rear side are connected with the bottom of four groups of installation rods (16) respectively, the top of four groups of installation rods (16) is all connected with the left side of third installation board (10) bottom, the top of motor (17) is connected with the left side of fourth installation board (15) bottom, the top of speed reducer (18) is connected with the right side of fourth installation board (15) bottom, the right output of motor (17) is connected with the left input of speed reducer (18), the front output of speed reducer (18) is connected with the upside of third connecting rod (19) rear end, the downside of third connecting rod (19) front end is connected with the left side of fourth connecting rod (20) rear end, the right-hand member of fourth connecting rod (20) is connected with the middle part of second connecting rod (13) left end.
3. The metal material processing and welding device as recited in claim 2, further comprising a first lead screw (21), a threaded pipe (22), a fifth mounting plate (23) and a second lead screw (24), wherein the bottom end of the first lead screw (21) is connected with the right side of the top end of the first mounting plate (1), the lower half area of the inside of the threaded pipe (22) is provided with a thread matching the first lead screw (21), the top end of the first lead screw (21) is inserted and screwed into the inside of the bottom end of the threaded pipe (22), the bottom end of the fifth mounting plate (23) is connected with the top end of the second lead screw (24), the second lead screw (24) is provided with a thread opposite to the direction of rotation of the first lead screw (21), the upper half area of the inside of the threaded pipe (22) is provided with a thread matching the second lead screw (24), the bottom end of the second lead screw (24) is inserted and screwed into the inside of the top end of the threaded pipe (22), the front side and the rear side on the top end of the fifth mounting plate (23) are provided with rollers (25), and the two groups of rollers (25) are attached to the rotating shaft (6).
4. A metal material processing and welding device as recited in claim 3, further comprising a second nut (26) and a third nut (27), wherein the second nut (26) is screwed and sleeved on the first lead screw (21), the top end of the second nut (26) is tightly attached to the bottom end of the screw tube (22), the third nut (27) is screwed and sleeved on the second lead screw (24), and the bottom end of the third nut (27) is tightly attached to the top end of the screw tube (22).
5. A welding device for processing metal materials, as recited in claim 4, characterized in that the left front side, the left rear side, the right front side and the right rear side of the bottom end of the first mounting plate (1) are provided with universal wheels (28).
6. A welding apparatus for processing metallic materials, as recited in claim 5, further comprising four sets of screw pipes (29) and four sets of screw rods (30), the top ends of the four sets of screw pipes (29) being connected to the left front side, the left rear side, the right front side and the right rear side of the bottom end of the first mounting plate (1), respectively, and the top ends of the four sets of screw rods (30) being inserted and screwed into the insides of the bottom ends of the four sets of screw pipes (29).
7. A welding device for processing metal materials, as recited in claim 6, wherein the bottom ends of the four sets of threaded rods (30) are provided with spacers (31).
8. A welding device for processing metal materials, as recited in claim 7, characterized in that the left end of the rotary shaft (6) is provided with a disk (32), and the left end of the disk (32) is provided with a handle (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920794214.9U CN210172856U (en) | 2019-05-29 | 2019-05-29 | Metal material processing welding set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920794214.9U CN210172856U (en) | 2019-05-29 | 2019-05-29 | Metal material processing welding set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210172856U true CN210172856U (en) | 2020-03-24 |
Family
ID=69835327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920794214.9U Active CN210172856U (en) | 2019-05-29 | 2019-05-29 | Metal material processing welding set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210172856U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110303262A (en) * | 2019-06-27 | 2019-10-08 | 江苏盐西高新水务建设管理有限公司 | A kind of extraordinary drainpipe welder of water utilities construction |
-
2019
- 2019-05-29 CN CN201920794214.9U patent/CN210172856U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110303262A (en) * | 2019-06-27 | 2019-10-08 | 江苏盐西高新水务建设管理有限公司 | A kind of extraordinary drainpipe welder of water utilities construction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206936852U (en) | A kind of frock clamp | |
| CN204800393U (en) | Steel pipe welded seam grinding device with dust absorption function | |
| CN102320027B (en) | Automatic polishing machine for inner circle of long pipe | |
| CN206691915U (en) | A kind of control workpiece turning platform manually | |
| CN104097017B (en) | A kind of bend pipe built-up welder | |
| CN107214574A (en) | A kind of pipe part arc surface automatic grinding device | |
| CN204700679U (en) | A kind of steel pipe welding seam grinding device of conveniently moving | |
| CN210172856U (en) | Metal material processing welding set | |
| CN107097033A (en) | A kind of 90 ° of elbow internal wall built-up welding displacement devices | |
| CN208467645U (en) | A kind of rectangle frame welder | |
| CN108746787A (en) | A kind of pipeline groove processing device | |
| CN207223604U (en) | A kind of weld grinding device of cylindrical tube | |
| CN207189399U (en) | A kind of rust removalling equipment | |
| CN205733926U (en) | Multistation milling rolling clamp | |
| CN208681177U (en) | Large caliber bend bend pipe straight tube outer wall automatically grinding unit | |
| CN207564292U (en) | A kind of bore metal pipe timber-used burnishing device | |
| CN210587896U (en) | Welding device for machining steel pipe rod connecting piece | |
| CN203992961U (en) | A kind of bend pipe built-up welder | |
| CN206912595U (en) | A kind of 90 ° of elbow internal wall built-up welding displacement devices | |
| CN204700680U (en) | A kind of steel pipe welding seam grinding device with shockproof function | |
| CN210209755U (en) | Deburring device for pipeline welding equipment | |
| CN112676400A (en) | Bending device convenient to control return bend processing angle | |
| CN109175643A (en) | A kind of workpiece feeder of seam welder | |
| CN105382653B (en) | A kind of circumferential weld polishing machine of bending tube | |
| CN206263752U (en) | A kind of sanding apparatus for large-size pipe internal diameter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |