CN101698268A - Friction type intersecting line cutting machine - Google Patents
Friction type intersecting line cutting machine Download PDFInfo
- Publication number
- CN101698268A CN101698268A CN200910154699A CN200910154699A CN101698268A CN 101698268 A CN101698268 A CN 101698268A CN 200910154699 A CN200910154699 A CN 200910154699A CN 200910154699 A CN200910154699 A CN 200910154699A CN 101698268 A CN101698268 A CN 101698268A
- Authority
- CN
- China
- Prior art keywords
- cutting torch
- connecting plate
- row
- servomotor
- workbench
- 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.)
- Granted
Links
Images
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a friction type intersecting line cutting machine, which comprises a working platform of which the side is provided with a guide rail; a cutting torch trolley is arranged on the guide rail, and is provided with a lifting rack capable of sliding up and down; the cutting machine also comprises a cutting torch support positioned in front of the lifting rack; the inside of the cutting torch support is provided with a radial deflection mechanism; a head part of a first connecting plate is positioned under a tail part of the first connecting plate, and the head part and the tail part of the first connecting plate are connected through a first bevel board; the working platform is provided with two rows of inserted seams; and two rows of friction plates are arranged under the working platform. When a material is fed, a pipe is only needed to be lifted to the working platform, and the shaft axis of the pipe is automatically aligned through the two groups of friction plates, so that the feeding and discharging of the pipe are convenient, and auxiliary time for lifting and adjusting the pipe and the like is greatly shortened.
Description
(1) technical field
The present invention relates to a kind of intersection-line cutting machine.
(2) background technology
In recent years, flourish along with industries such as China's steel structure net rack, offshore oil engineering, wind-power electricity generation, shipbuilding, pressure vessels, utilization scope, the consumption of all kinds of tubing are also increasing, the diameter and the length of pipe cutting processing constantly increase, maximum processing caliber has reached Φ 1500mm, and length is to 12m.The intersection mouth of pipe is also developed to becoming the groove direction by original single groove.Intersection-line cutting machine is applicable on the various tubing cutting cylinder quadrature, eccentric friendships of oblique, multiple pipe friendship etc., the intersection that can also match with it pipe end cutting.It is the special cutting device of pipe processing industry indispensability.
At present, the numerical control intersection-line cutting machine of domestic production mainly adopts the chuck mode structure.The chuck mode intersection-line cutting machine is in when work, need processed of tubing workpiece be clamped in the chuck.Chuck mode numerical control intersection-line cutting machine not only exists the clamping workpiece inconvenience, main is the depth of parallelism difficulty of adjusting the pipe shaft center line, pipe lifting, adjustment etc. almost are equal to the process time of pipe non-cutting time, make the production efficiency of pipe processing reduce.When the long large-diameter pipe of cutting, also be easy to generate axial line rotation distortion, cause the part relative position after the cutting to produce deviation easily, brought certain difficulty for road, back manufacturing procedure.
(3) summary of the invention
In order to overcome existing chuck mode intersection-line cutting machine above shortcomings, the axial line that the invention provides a kind of loading and unloading convenience, centering workpiece pipe is easy to friction type intersecting line cutting machine.
The technical scheme that the present invention solves its technical problem is: friction type intersecting line cutting machine, comprise workbench, the side of described workbench is provided with a row guide rail, described guide rail is provided with the cutting torch dolly, described cutting torch dolly is provided with the crane that can slide up and down, also comprise the cutting torch frame that is positioned at described crane the place ahead, be provided with radial beat mechanism in the described cutting torch frame; Described radial beat mechanism comprises first servomotor, first rotating shaft, and described first rotating shaft laterally is located on the described cutting torch frame, and described first rotating shaft is connected by first transmission mechanism with the output shaft of described first servomotor; Be connected with vertical first connecting rod in described first rotating shaft, there is the cutting torch clamper in the outside of described cutting torch frame, described cutting torch clamper is provided with vertical cutting torch, also comprise first connecting plate, the head of described first connecting plate and described cutting torch clamper are hinged, and the afterbody of described first connecting plate and described first connecting rod are hinged;
Be provided with axial-shift mechanism in the described crane, thereby described axial-shift mechanism comprises second servomotor, pass through the beat axle that described crane and cutting torch frame are together in series both, described beat axle and described cutting torch frame are affixed, and described beat axle is connected by second transmission mechanism with the output shaft of described second servomotor;
The central axis of described beat axle and the central axis of described cutting torch are intersected in a bit;
The head of described first connecting plate is positioned at the below of the afterbody of described first connecting plate, connects by first swash plate between the head of described first connecting plate and the afterbody;
Described workbench is provided with all vertical and symmetrical with the described cutting torch interpolation slit of two row; There are two row and the corresponding frictional disk of described two row interpolation slits the below of described workbench, each frictional disk of two row frictional disks has identical size, the described frictional disk of two row is connected in series its center by a power transmission shaft respectively, and described power transmission shaft is connected with the 3rd transmission mechanism that drives its rotation;
Thereby described interpolation slit projection is stretched on described workbench in the top of described frictional disk, and the distance of the upper lobes of two row frictional disks on described workbench equates; Projection forms frame rail between two row frictional disks on the described workbench;
The axis parallel of the guide rail of the side of described workbench and described two row frictional disks, described cutting torch is aimed at the center of described frame rail.
Further, described radial beat mechanism also comprises second rotating shaft, and described second rotating shaft laterally is located on the described cutting torch frame; Be connected with vertical second connecting rod in described second rotating shaft, also comprise second connecting plate that is positioned at described first connecting plate top, the head of described second connecting plate and described cutting torch clamper are hinged, and the afterbody of described second connecting plate and described second connecting rod are hinged; The head of described second connecting plate is positioned at the below of the afterbody of described second connecting plate, connects by second swash plate between the head of described second connecting plate and the afterbody.
Further, the specific constructive form of described first transmission mechanism is: the output shaft of described first servomotor is provided with first driving pulley, described first rotating shaft is provided with first driven pulley, is with connection synchronously by first between described first driving pulley and first driven pulley; The specific constructive form of described second transmission mechanism is: the output shaft of described second servomotor is connected by tape handler with described beat axle.
Further, the specific constructive form of described the 3rd transmission mechanism is: described power transmission shaft is provided with driven sprocket, also comprise the 3rd servomotor, the output shaft of described the 3rd servomotor is provided with drive sprocket, and described drive sprocket is connected by chain with described driven sprocket.
The present invention also has following additional technical feature: the distance between the adjacent front and back frictional disk of every row frictional disk equates.
Described power transmission shaft is positioned at the below of described workbench.
The present invention only need be placed on pipe piece rack during the workpiece material loading on the frame rail between the two row frictional disks and gets final product in use.The 3rd transmission mechanism drives power transmission shaft and rotates, and frictional disk drives workpiece and rotates under the effect of frictional force.The mode that cutting torch cuts is identical with existing intersection-line cutting machine, when cutting, the cut point of cutting torch remains at the upper surface of pipe fitting, its ray is by the center of circle of pipe fitting, cutting torch is at the axial direction of pipe fitting and beat in the radial direction, axial and radial beat is combined into corresponding angle, and its spot on the normal direction of intersection movement locus, makes cutting torch can realize becoming continuously the groove cutting in 360 ° of scopes all the time like this.The axial-shift of cutting torch, the spot of radial beat must overlap (being that the central axis of beat axle and the central axis of described cutting torch are intersected in a bit) with cut point.
The present invention in use, workpiece is to rely on the frictional disk group to support rotation, along with reducing of processing caliber, the distance between workpiece surface and the frictional disk external diameter is also being dwindled.The connecting plate that being used to of traditional radial beat mechanism connects cutting torch clamper and connecting rod is straight plate (head and the afterbody that are connecting plate are positioned at same horizontal plane), adopt this structure, connecting plate will produce collision with frictional disk in certain caliber scope, has restricted the cutting processing scope of pipe like this.Therefore the present invention adopts such structure: the head of first connecting plate is positioned at the below of the afterbody of first connecting plate, connects by first swash plate between the head of first connecting plate and the afterbody; The head of second connecting plate is positioned at the below of the afterbody of second connecting plate, connects by second swash plate between the head of second connecting plate and the afterbody, as much as possible the enlarged pipe range of work.
Beneficial effect of the present invention is: only need during material loading directly pipe to be hung on the workbench, utilize the axial line of two groups of frictional disk automatic capturing pipes, make that the loading and unloading of pipe are very convenient, significantly reduced non-cutting times such as pipe lifting, adjustment; Do not influence simultaneously the range of work of pipe.
(4) description of drawings
Fig. 1 is the front view at workbench of the present invention place.
Fig. 2 is a side view of the present invention.
Fig. 3 is the structural representation of radial beat mechanism and axial-shift mechanism.
Fig. 4 is that the A-A of Fig. 3 is to cutaway view.
Fig. 5 is that the B-B of Fig. 3 is to cutaway view.
(5) specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, friction type intersecting line cutting machine comprises workbench 1, and the side of described workbench 1 is provided with a row guide rail, described guide rail is provided with cutting torch dolly 2, and described cutting torch dolly 2 is provided with the crane 3 that can slide up and down.Also comprise the cutting torch frame 4 that is positioned at described crane 3 the place aheads, be provided with radial beat mechanism in the described cutting torch frame 4.Described radial beat mechanism comprises first servomotor 5, first rotating shaft 6, and described first rotating shaft 6 laterally is located on the described cutting torch frame 2, and described first rotating shaft 6 is connected by first transmission mechanism with the output shaft of described first servomotor 5.In the present embodiment, the specific constructive form of this first transmission mechanism is: the output shaft of described first servomotor 5 is provided with first driving pulley, described first rotating shaft 6 is provided with first driven pulley, is with 7 to connect synchronously by first between described first driving pulley and first driven pulley.
Be connected with vertical first connecting rod 8 in described first rotating shaft 6, there is cutting torch clamper 9 in the outside of described cutting torch frame 2, described cutting torch clamper 9 is provided with vertical cutting torch 10, also comprise first connecting plate 11, the head of described first connecting plate 11 and described cutting torch clamper 9 are hinged, and the afterbody of described first connecting plate 11 and described first connecting rod 8 are hinged.The head of described first connecting plate 11 is positioned at the below of the afterbody of described first connecting plate 11, connects by first swash plate between the head of described first connecting plate 11 and the afterbody.
In order to guarantee the radial deflection pulling force to cutting torch clamper 9, the radial beat mechanism described in the present embodiment also comprises second rotating shaft 12, and described second rotating shaft 12 laterally is located on the described cutting torch frame 4; Be connected with vertical second connecting rod 13 in described second rotating shaft 12, also comprise second connecting plate 14 that is positioned at described first connecting plate 11 tops, the head of described second connecting plate 14 and described cutting torch clamper 9 are hinged, and the afterbody of described second connecting plate 14 and described second connecting rod 13 are hinged; The head of described second connecting plate 14 is positioned at the below of the afterbody of described second connecting plate 14, connects by second swash plate between the head of described second connecting plate 14 and the afterbody.
Be provided with axial-shift mechanism in the described crane 3, thereby described axial-shift mechanism comprises second servomotor 15, pass through the beat axle 16 that described crane 3 and cutting torch frame 4 are together in series both, described beat axle 16 and described cutting torch frame 4 are affixed, and described beat axle 16 is connected by second transmission mechanism with the output shaft of described second servomotor 15.In the present embodiment, the output shaft of described second servomotor 15 and described beat axle 16 are connected by tape handler: the output shaft of second servomotor 15 is provided with second driving pulley, second servomotor 15 connects the support body that is positioned at its below by link, be equipped with transition axis 17 on this support body, one end of transition axis 17 is provided with second driven pulley, the other end of transition axis 17 is provided with the 3rd driven pulley, beat axle 16 is provided with the 4th driven pulley, be with 17 to connect synchronously by second between second driving pulley and second driven pulley, be with 18 to connect synchronously by the 3rd between the 3rd driven pulley and the 4th driven pulley.
The central axis of the central axis of described beat axle 16 and described cutting torch 10 is intersected in a bit.
Described workbench 1 is provided with all vertical and symmetrical with the described cutting torch interpolation slit of two row, and promptly each bar interpolation slit of two row interpolation slits is corresponding one by one in a lateral direction.
There are two row and the corresponding frictional disk 19 of described two row interpolation slits the below of described workbench, each frictional disk of two row frictional disks 19 has identical size, distance between the adjacent front and back frictional disk of every row frictional disk equates, the described frictional disk of two row is connected in series its center by a power transmission shaft respectively, and described power transmission shaft is positioned at the below of described workbench.Described power transmission shaft is connected with the 3rd transmission mechanism that drives its rotation.In the present embodiment, the specific constructive form of the 3rd transmission mechanism is: described power transmission shaft is provided with driven sprocket, also comprise the 3rd servomotor, the output shaft of described the 3rd servomotor is provided with drive sprocket, and described drive sprocket is connected by chain with described driven sprocket.
Thereby described interpolation slit projection is stretched on described workbench 1 in the top of described frictional disk 19, and the distance of the upper lobes of two row frictional disks on described workbench equates; Projection forms frame rail between two row frictional disks on the described workbench;
The axis parallel of the guide rail of the side of described workbench and described two row frictional disks, described cutting torch 10 is aimed at the center of described frame rail.
The present invention only need be placed on pipe piece rack during the workpiece material loading on the frame rail between the two row frictional disks 19 and gets final product in use.The 3rd transmission mechanism drives power transmission shaft and rotates, and frictional disk 19 drives workpiece and rotates under the effect of frictional force.The mode that cutting torch 10 cuts is identical with existing intersection-line cutting machine: when cutting, the cut point of cutting torch 10 remains at the upper surface of pipe fitting, its ray is by the center of circle of pipe fitting, cutting torch 10 is at the axial direction of pipe fitting and beat in the radial direction: the output shaft of second servomotor 15 drives beat axle 16 by tape handler and rotates, beat axle 16 drives cutting torch frame 4 and rotates, thereby realizes the beat of cutting torch 10 on the axial direction of pipe fitting; The output shaft of first servomotor 5 also is to drive first rotating shaft 6 by tape handler to rotate, first rotating shaft 6 is rotated and is driven first connecting rod 8, first connecting plate 11 spurs the in the radial direction beat of cutting torches at pipe fitting, and second connecting rod 13, second connecting plate 14 also spur the in the radial direction beat of cutting torch at pipe fitting simultaneously.Axial and radial beat is combined into corresponding angle, and its spot on the normal direction of intersection movement locus, makes cutting torch 10 can realize becoming continuously the groove cutting in 360 ° of scopes all the time like this.The axial-shift of cutting torch 10, the spot of radial beat must overlap (being that the central axis of beat axle and the central axis of described cutting torch are intersected in a bit) with cut point.
The present invention in use, workpiece is to rely on frictional disk to support rotation for 19 groups, along with reducing of processing caliber, the distance between workpiece surface and frictional disk 19 external diameters is also being dwindled.The connecting plate that being used to of traditional radial beat mechanism connects cutting torch clamper and connecting rod is straight plate (head and the afterbody that are connecting plate are positioned at same horizontal plane), adopt this structure, connecting plate will produce collision with frictional disk in certain caliber scope, has restricted the cutting processing scope of pipe like this.Therefore the present invention adopts such structure: the head of first connecting plate 11 is positioned at the below of the afterbody of first connecting plate 11, connects by first swash plate between the head of first connecting plate 11 and the afterbody; The head of second connecting plate 14 is positioned at the below of the afterbody of second connecting plate 14, connects by second swash plate between the head of second connecting plate 14 and the afterbody, as much as possible the enlarged pipe range of work.
Claims (6)
1. friction type intersecting line cutting machine, comprise workbench, the side of described workbench is provided with a row guide rail, described guide rail is provided with the cutting torch dolly, described cutting torch dolly is provided with the crane that can slide up and down, also comprise the cutting torch frame that is positioned at described crane the place ahead, be provided with radial beat mechanism in the described cutting torch frame; Described radial beat mechanism comprises first servomotor, first rotating shaft, and described first rotating shaft laterally is located on the described cutting torch frame, and described first rotating shaft is connected by first transmission mechanism with the output shaft of described first servomotor; Be connected with vertical first connecting rod in described first rotating shaft, there is the cutting torch clamper in the outside of described cutting torch frame, described cutting torch clamper is provided with vertical cutting torch, also comprise first connecting plate, the head of described first connecting plate and described cutting torch clamper are hinged, and the afterbody of described first connecting plate and described first connecting rod are hinged;
Be provided with axial-shift mechanism in the described crane, thereby described axial-shift mechanism comprises second servomotor, pass through the beat axle that described crane and cutting torch frame are together in series both, described beat axle and described cutting torch frame are affixed, and described beat axle is connected by second transmission mechanism with the output shaft of described second servomotor;
The central axis of described beat axle and the central axis of described cutting torch are intersected in a bit;
It is characterized in that: the head of described first connecting plate is positioned at the below of the afterbody of described first connecting plate, connects by first swash plate between the head of described first connecting plate and the afterbody;
Described workbench is provided with all vertical and symmetrical with the described cutting torch interpolation slit of two row;
There are two row and the corresponding frictional disk of described two row interpolation slits the below of described workbench, each frictional disk of two row frictional disks has identical size, the described frictional disk of two row is connected in series its center by a power transmission shaft respectively, and described power transmission shaft is connected with the 3rd transmission mechanism that drives its rotation;
Thereby described interpolation slit projection is stretched on described workbench in the top of described frictional disk, and the distance of the upper lobes of two row frictional disks on described workbench equates; Projection forms frame rail between two row frictional disks on the described workbench;
The axis parallel of the guide rail of the side of described workbench and described two row frictional disks, described cutting torch is aimed at the center of described frame rail.
2. friction type intersecting line cutting machine as claimed in claim 1 is characterized in that: described radial beat mechanism also comprises second rotating shaft, and described second rotating shaft laterally is located on the described cutting torch frame; Be connected with vertical second connecting rod in described second rotating shaft, also comprise second connecting plate that is positioned at described first connecting plate top, the head of described second connecting plate and described cutting torch clamper are hinged, and the afterbody of described second connecting plate and described second connecting rod are hinged;
The head of described second connecting plate is positioned at the below of the afterbody of described second connecting plate, connects by second swash plate between the head of described second connecting plate and the afterbody.
3. friction type intersecting line cutting machine as claimed in claim 1 or 2, it is characterized in that: the output shaft of described first servomotor is provided with first driving pulley, described first rotating shaft is provided with first driven pulley, is with connection synchronously by first between described first driving pulley and first driven pulley;
The output shaft of described second servomotor is connected by tape handler with described beat axle.
4. friction type intersecting line cutting machine as claimed in claim 3, it is characterized in that: described power transmission shaft is provided with driven sprocket, also comprise the 3rd servomotor, the output shaft of described the 3rd servomotor is provided with drive sprocket, and described drive sprocket is connected by chain with described driven sprocket.
5. friction type intersecting line cutting machine as claimed in claim 3 is characterized in that: the distance between the adjacent front and back frictional disk of every row frictional disk equates.
6. friction type intersecting line cutting machine as claimed in claim 5 is characterized in that: described power transmission shaft is positioned at the below of described workbench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101546996A CN101698268B (en) | 2009-11-23 | 2009-11-23 | Friction type intersecting line cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101546996A CN101698268B (en) | 2009-11-23 | 2009-11-23 | Friction type intersecting line cutting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101698268A true CN101698268A (en) | 2010-04-28 |
| CN101698268B CN101698268B (en) | 2012-05-16 |
Family
ID=42146732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101546996A Expired - Fee Related CN101698268B (en) | 2009-11-23 | 2009-11-23 | Friction type intersecting line cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101698268B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528250A (en) * | 2011-11-04 | 2012-07-04 | 发思特软件（上海）有限公司 | Automatic changing three-dimensional groove cutting system |
| CN102642073A (en) * | 2012-04-11 | 2012-08-22 | 武汉法利普纳泽切割系统有限公司 | Bevel cutting device of plasma cutting machine |
| WO2015032258A1 (en) * | 2013-09-06 | 2015-03-12 | Luo Zhizhong | Multi-line segment intersecting line cutting device for circular tube end |
| CN105773006A (en) * | 2016-05-03 | 2016-07-20 | 德州耐垦工业自动化设备有限公司 | Deflection structure of intersecting line numerical control cutter |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2610073B2 (en) * | 1991-12-24 | 1997-05-14 | 山陽特殊製鋼株式会社 | Gas cutting method and apparatus for round steel |
| CN2584337Y (en) * | 2002-12-10 | 2003-11-05 | 王洪 | Cutting blowpipe angle oscillation device |
| JP2006336574A (en) * | 2005-06-03 | 2006-12-14 | Anest Iwata Corp | Method and device for raising pressure of inert gas and feeding inert gas |
| KR20070105781A (en) * | 2006-04-27 | 2007-10-31 | 박창언 | Plasma cutter |
| KR100988159B1 (en) * | 2008-04-11 | 2010-10-18 | 세영 E.N.G. 주식회사 | Apparatus of cutting pipe using plasma |
| CN201291337Y (en) * | 2008-10-10 | 2009-08-19 | 上海宝业机电科技有限公司 | Digital control cutting device for cutting steel tube intersecting-line |
| CN201543988U (en) * | 2009-11-23 | 2010-08-11 | 宁波金凤焊割机械制造有限公司 | Friction-type intersecting line cutting machine |
-
2009
- 2009-11-23 CN CN2009101546996A patent/CN101698268B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528250A (en) * | 2011-11-04 | 2012-07-04 | 发思特软件（上海）有限公司 | Automatic changing three-dimensional groove cutting system |
| CN102642073A (en) * | 2012-04-11 | 2012-08-22 | 武汉法利普纳泽切割系统有限公司 | Bevel cutting device of plasma cutting machine |
| WO2015032258A1 (en) * | 2013-09-06 | 2015-03-12 | Luo Zhizhong | Multi-line segment intersecting line cutting device for circular tube end |
| CN105773006A (en) * | 2016-05-03 | 2016-07-20 | 德州耐垦工业自动化设备有限公司 | Deflection structure of intersecting line numerical control cutter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101698268B (en) | 2012-05-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213729421U (en) | Pneumatic limiting chuck | |
| CN202271179U (en) | Pillar type rotary operating platform | |
| CN207464750U (en) | A kind of clamping device for steel tube processing | |
| CN201239800Y (en) | Dividing spindle servo gear for processing heavy type shaft parts | |
| CN101698268B (en) | Friction type intersecting line cutting machine | |
| CN107414379A (en) | Welding device | |
| CN202290906U (en) | Bending machine for mine U-shaped clip | |
| CN108543976A (en) | A kind of drilling machine convenient for mounting surface punching on triple valve | |
| CN207402006U (en) | A kind of necking machine for copper pipe | |
| CN206200182U (en) | A kind of multi-shaft interlocked automatic drilling bicycle rim drilling machine | |
| CN203900801U (en) | Welding positioner | |
| CN201744877U (en) | Automatic positioning frame | |
| CN203945057U (en) | Rotation type positioner | |
| CN205271088U (en) | Welding bench | |
| CN109176099B (en) | Floating clamping driving device for four-axis machining center shaft type workpiece | |
| CN207806839U (en) | A kind of intersection-line cutting machine of achievable chuck automatic displacement | |
| CN201543988U (en) | Friction-type intersecting line cutting machine | |
| CN101549409A (en) | Taper hole boring machine | |
| CN201792159U (en) | Pressure type transmission pipe fitting welding turntable | |
| CN101913527A (en) | Electric extension tongs | |
| CN204019298U (en) | Valve-face special purpose grinder | |
| CN201543989U (en) | Friction type intersecting line cutting machine | |
| CN101890509B (en) | Lathe for machining spider universal joint | |
| CN204975626U (en) | Convex groove preparation device | |
| CN204621818U (en) | A kind of axial workpiece clamping tooling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120516 Termination date: 20211123 |