CN102990144B - Numerical control machining production line and method of vertical joint sieve pipe - Google Patents
Numerical control machining production line and method of vertical joint sieve pipe Download PDFInfo
- Publication number
- CN102990144B CN102990144B CN201210552238.6A CN201210552238A CN102990144B CN 102990144 B CN102990144 B CN 102990144B CN 201210552238 A CN201210552238 A CN 201210552238A CN 102990144 B CN102990144 B CN 102990144B
- Authority
- CN
- China
- Prior art keywords
- assembly
- saw
- sleeve pipe
- milling cutter
- tooth milling
- 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
Landscapes
- Milling Processes (AREA)
Abstract
The invention relates to oil-water well joint sieve pipe machining equipment and method and particularly relates to a numerical control machining production line and method of a vertical joint sieve pipe. The numerical control machining production line comprises a plurality of sets of main engine assemblies, sleeve clamping assemblies, sleeve supporting assemblies, a sleeve indexing assembly, an axial movement assembly and a base assembly, wherein a cast sliding guide rail is used as the base assembly; the main engine assemblies, the sleeve clamping assemblies and the sleeve supporting assemblies are respectively connected with the base assembly; the sleeve indexing assembly is connected with the base assembly through the sleeve axial movement assembly; and the main engine assemblies drive a saw-tooth milling cutter to rotate to carrying out joint cutting on a sleeve. The numerical control machining production line and method of the vertical joint sieve pipe have the beneficial effects that the sleeve joint cutting is carried out by the numerical control machining production line and method; the cost is low, the operation is simple, the service life of a metal slitting saw is long, the machining efficiency is high and the surface quality of a cutting joint is high, and the size precision and the position precision are high; the sleeves with various parameters and the cutting joints can be machined; furthermore, a vertical joint can be machined by adopting the saw-tooth milling cutter for cutting the joint; the surface quality of the joint is high and the size precision is high; and the adaptability to the size of the sleeve, and the lengths and the gaps of the cutting joints is strong.
Description
Technical field
The present invention relates to a kind of oil-water well slit screen pipes by using process equipment and method, particularly a kind of vertical lap seam screen casing digital control processing production line and method.
Background technology
Cutting seam sieve tube is the key downhole tool of oilfield exploitation, and its operation principle is that processing can be led to oily slit by sand control on petroleum casing pipe, and the quality of slit has determined the serviceability of screen casing.At present cutting seam sieve tube is processed with several method, a kind of is to adopt inlaying process, on sleeve pipe, require the position of slot to process the opening wider than design size, then inlay the slightly narrow metal derby of ratio open and weld, form weld seam, this kind of method complicated operation, inefficiency, and also precision can not guarantee; Be a laser cutting method, utilize laser beam to make the gasification of sleeve pipe somewhere material, form slot, this kind of method easily forms match end, and the surface of seam exists heat affected layer, and laser process equipment is very expensive; Be a spark machined, this kind of method slot size precision is lower, and efficiency is not high, higher to operation requirements; A kind of is ceramic tip cutting, and this kind of method tool wear is very fast, and the accuracy of manufacture of process equipment is had relatively high expectations.
Summary of the invention
Object of the present invention is exactly in view of the foregoing defects the prior art has, a kind of vertical lap seam screen casing digital control processing production line and method are provided, simple to operate, working (machining) efficiency is high, adopt saw-tooth milling cutter slot, what process is vertical lap seam, and the surface quality of seam is high, dimensional accuracy is high, the strong adaptability to casing size and slot length, spacing.
A kind of vertical lap seam screen casing digital control processing production line, its technical scheme is: comprise many cover host component, sleeve pipe clamp assembly, collar supports assembly, sleeve pipe calibration assemblies, move axially assembly and base assembly, described base assembly adopts casting rail plate, host component, sleeve pipe clamp assembly and collar supports assembly are connected with base assembly respectively, and sleeve pipe calibration assembly is connected with base assembly to moving assembly by quill; Host component drives saw-tooth milling cutter rotation to carry out slot to sleeve pipe;
Described sleeve pipe clamp assembly comprises V piece, oil cylinder, lower V piece, upper V piece and lower V piece gripping sleeve, upper and lower V piece adopts oil cylinder by gear & rack structure transmission, can make sleeve pipe clamp after in same centre-height;
Collar supports assembly comprises universal bearing, screw pair, bevel gear, handwheel, the universal bearing that top is provided with two inclinations is used for supporting sleeve, can make sleeve pipe at radial rotating and move axially, the height of universal bearing is regulated by bevel gear driving screw pair, and a side for bevel gear connects handwheel;
Sleeve pipe calibration assembly comprises scroll chuck, servo deceleration machine, servomotor, by servomotor, through the transmission of servo deceleration machine, drives the scroll chuck of fixed sleeving to realize accurate calibration;
Quill comprises ball-screw, servomotor, line slideway to moving assembly, and by servomotor, through ball-screw-transmission, the one group of line slideway of take is track, realizes accurate axial location;
Base assembly comprises tooth bar and casting guide rail, and whole base adopts casting guide rail, and host component is movably connected on base, and puts by gear, tooth bar any adjusted position on base.
Above-mentioned host component comprises saw-tooth milling cutter feeding part, saw-tooth milling cutter running part, saw-tooth milling cutter main shaft portion, head position adjustments part, saw-tooth milling cutter feeding partly adopts two round guide pillar guiding, hydraulic oil cylinder driving, make feeding at a slow speed stable, saw-tooth milling cutter running part passes through belt pulley by asynchronous motor, gear-box slows down, driving saw-tooth milling cutter rotates, belt pulley adopts narrow V belt, belt pulley spacing adopts screw rod to regulate, saw-tooth milling cutter main shaft portion adopts asessory shaft, strengthen the rigidity of saw-tooth milling cutter main shaft, main shaft adopts sliding bearing, make saw-tooth milling cutter working stability, head position adjustments partly adopts a pair of screw thread pair, two heads can symmetry be moved on base plate.
Above-mentioned upper V piece adopts four circular guide pillars to do track.
Above-mentioned host component is by the transmission of big speed ratio reduction of speed, and belt transmission and gear drive are used in conjunction with.
Every two saw-tooth milling cutters are as a feeding group, and whole production line is comprised of 10 feeding groups.
A method for producing for vertical lap seam screen casing digital control processing production line, its technical scheme is:
Sleeve pipe moves axially under the support of collar supports assembly, be put in the chuck of numerical control scale-division assembly, then chuck clamps, and sleeve pipe clamp assembly clamps whole sleeve pipe, saw-tooth milling cutter transmission component drives saw-tooth milling cutter to rotate, saw-tooth milling cutter feeder assembly is set feed speed according to sleeve parameters, drives saw-tooth milling cutter radial feed, during work, according to slot length requirement, set the saw-tooth milling cutter radial feed degree of depth, complete after processing saw-tooth milling cutter auto-returned original position;
After saw-tooth milling cutter reposition, sleeve pipe clamp assembly unclamps sleeve pipe, and sleeve pipe is supported by collar supports assembly, numerical control scale-division assembly rotating casing, realizes calibration, then sleeve pipe clamp assembly gripping sleeve, saw-tooth milling cutter feeder assembly drives saw-tooth milling cutter feeding, processing sleeve pipe;
When slot processes after a whole circle, sleeve pipe clamp assembly unclamps sleeve pipe, and quill moves axially a segment distance to moving assembly drive sleeve, continues next circle slot of processing.
The invention has the beneficial effects as follows: adopt the present invention to carry out sleeve pipe slot, its cost is low, simple to operate, and the metal saw life-span is long, and working (machining) efficiency is high, and the surface quality of slot is high, and dimensional accuracy and positional precision are high, can process sleeve pipe and the slot of various parameters; In addition, adopt saw-tooth milling cutter slot, what process is vertical lap seam, and the surface quality of seam is high, and dimensional accuracy is high, the strong adaptability to casing size and slot length, spacing.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2.1 is structural representations of host component of the present invention;
Accompanying drawing 2.2 is side views of host component of the present invention;
Accompanying drawing 3.1 is structural representations of sleeve pipe clamp assembly of the present invention;
Accompanying drawing 3.2 is side views of sleeve pipe clamp assembly of the present invention;
Accompanying drawing 4 is structural representations of collar supports assembly of the present invention;
Accompanying drawing 5.1 is structural representations of sleeve pipe calibration assembly of the present invention and sleeve pipe moving assembly;
Accompanying drawing 5.2 is side views of sleeve pipe calibration assembly of the present invention and sleeve pipe moving assembly;
Accompanying drawing 6 is structural representations of base assembly of the present invention;
In upper figure: host component 1, sleeve pipe 2, sleeve pipe clamp assembly 3, collar supports assembly 4, sleeve pipe calibration assembly 5, quill are to moving assembly 6, base assembly 7; Asynchronous motor 8, screw rod 9, guide pillar 10, gear 11, base plate 12, gear-box 13, belt pulley 14, oil cylinder 15, screw thread pair 16, asessory shaft 17, sliding bearing 18, saw-tooth milling cutter 19; Upper V piece 20, tooth bar 21, gear 22, tooth bar 23, oil cylinder 24, lower V piece 25, guide pillar 26; Universal bearing 27, screw pair 28, bevel gear 29, handwheel 30; Scroll chuck 31, servo deceleration machine 32, servomotor 33, ball-screw 34, servomotor 35, line slideway 36; Tooth bar 37, casting guide rail 38.
The specific embodiment
1-6 by reference to the accompanying drawings, the invention will be further described:
The vertical lap seam screen casing digital control processing production line that the present invention mentions, comprise many cover host component 1, sleeve pipe clamp assembly 3, collar supports assembly 4, sleeve pipe calibration assemblies 5, move axially assembly 6 and base assembly 7, described base assembly 7 adopts casting rail plate, host component 1, sleeve pipe clamp assembly 3 and collar supports assembly 4 are connected with base assembly 7 respectively, and sleeve pipe calibration assembly 5 is connected with base assembly 7 to moving assembly 6 by quill; Host component 1 drives saw-tooth milling cutter rotation to carry out slot to sleeve pipe;
Host component comprises saw-tooth milling cutter feeding part, saw-tooth milling cutter running part, saw-tooth milling cutter main shaft portion, head position adjustments part, saw-tooth milling cutter feeding partly adopts two round guide pillar 10 guiding, oil cylinder 15 drives, make feeding at a slow speed stable, saw-tooth milling cutter running part passes through belt pulley 14 by asynchronous motor 8, gear-box 13 slows down, drive saw-tooth milling cutter 19 to rotate, belt pulley adopts narrow V belt, belt pulley spacing adopts screw rod 9 to regulate, saw-tooth milling cutter main shaft portion adopts asessory shaft 17, strengthen the rigidity of saw-tooth milling cutter main shaft, main shaft adopts sliding bearing 18, make saw-tooth milling cutter 19 working stabilities, head position adjustments partly adopts a pair of screw thread pair 16, two heads can symmetry be moved on base plate 12.
Wherein, sleeve pipe clamp assembly 3 comprises V piece 20, oil cylinder 24, lower V piece 25, upper V piece 20 and lower V piece 25 gripping sleeves, upper and lower V piece adopts oil cylinder 24 by gear & rack structure transmission, can make sleeve pipe clamp after in same centre-height;
Collar supports assembly 4 comprises universal bearing 27, screw pair 28, bevel gear 29, handwheel 30, the universal bearing 27 that top is provided with two inclinations is used for supporting sleeve, can make sleeve pipe at radial rotating and move axially, the height of universal bearing 27 is regulated by bevel gear 29 drive screws secondary 28, and a side for bevel gear 29 connects handwheel 30;
Sleeve pipe calibration assembly 5 comprises scroll chuck 31, servo deceleration machine 32, servomotor 33, by servomotor 33, through 32 transmissions of servo deceleration machine, drives the scroll chuck 31 of fixed sleeving to realize accurate calibration;
Quill comprises ball-screw 34, servomotor 35, line slideway 36 to moving assembly 6, and by servomotor 35, through ball-screw 34 transmissions, the one group of line slideway 36 of take is track, realizes accurate axial location;
Base assembly 7 comprises tooth bar 37 and casting guide rail 38, and whole base adopts casting guide rail 38, and host component is movably connected on base, and puts by gear 11, tooth bar 37 any adjusted position on base.
In addition, upper V piece 20 adopts four circular guide pillars 26 to do track, and host component 1 is by the transmission of big speed ratio reduction of speed, and belt transmission and gear drive are used in conjunction with.Every two saw-tooth milling cutters 19 are as a feeding group, and whole production line is comprised of 10 feeding groups.
A method for producing for vertical lap seam screen casing digital control processing production line, specific as follows:
Sleeve pipe 2 moves axially under the support of collar supports assembly 4, be put in the chuck of numerical control scale-division assembly 5, then chuck clamps, and sleeve pipe clamp assembly 3 clamps whole sleeve pipe, saw-tooth milling cutter transmission component 1 drives saw-tooth milling cutter to rotate, saw-tooth milling cutter feeder assembly 7, according to sleeve pipe 2 setting parameter feed speeds, drives saw-tooth milling cutter radial feed, during work, according to slot length requirement, set the saw-tooth milling cutter radial feed degree of depth, complete after processing saw-tooth milling cutter auto-returned original position; After saw-tooth milling cutter reposition, sleeve pipe clamp assembly 3 unclamps sleeve pipe 2, and sleeve pipe 2 is supported by collar supports assembly 4, numerical control scale-division assembly 5 rotating casings 2, realize calibration, then sleeve pipe clamp assembly 3 gripping sleeves 2, saw-tooth milling cutter feeder assembly 7 drives saw-tooth milling cutter feeding, processing sleeve pipe; When slot processes after a whole circle, sleeve pipe clamp assembly 3 unclamps sleeve pipe 2, and quill moves axially a segment distance to moving assembly 6 drive sleeve 2, continues next circle slot of processing.
This process is according to machined parameters such as the length of slot, spacing, and preprogramming in digital control system, as long as each recalls program with sleeve pipe, inputs a processing start signal, can the disposable processing that completes whole sleeve pipe.
Claims (5)
1. a vertical lap seam screen casing digital control processing production line, it is characterized in that: comprise many cover host component (1), sleeve pipe clamp assembly (3), collar supports assembly (4), sleeve pipe calibration assemblies (5), move axially assembly (6) and base assembly (7), described base assembly (7) adopts casting rail plate, host component (1), sleeve pipe clamp assembly (3) and collar supports assembly (4) are connected with base assembly (7) respectively, and sleeve pipe calibration assembly (5) is connected with base assembly (7) to moving assembly (6) by quill; Host component (1) drives saw-tooth milling cutter rotation to carry out slot to sleeve pipe;
Described sleeve pipe clamp assembly (3) comprises V piece (20), oil cylinder (24), lower V piece (25), upper V piece (20) and lower V piece (25) gripping sleeve, upper and lower V piece adopts oil cylinder (24) by gear & rack structure transmission, can make sleeve pipe clamp after in same centre-height;
Collar supports assembly (4) comprises universal bearing (27), screw pair (28), bevel gear (29), handwheel (30), the universal bearing (27) that top is provided with two inclinations is used for supporting sleeve, can make sleeve pipe at radial rotating and move axially, the height of universal bearing (27) is regulated by bevel gear (29) drive screw secondary (28), and a side for bevel gear (29) connects handwheel (30);
Sleeve pipe calibration assembly (5) comprises scroll chuck (31), servo deceleration machine (32), servomotor (33), by servomotor (33), through servo deceleration machine (32) transmission, drives the scroll chuck (31) of fixed sleeving to realize accurate calibration;
Quill comprises ball-screw (34), servomotor (35), line slideway (36) to moving assembly (6), and by servomotor (35), through ball-screw (34) transmission, the one group of line slideway (36) of take is track, realizes accurate axial location;
Base assembly (7) comprises tooth bar (37) and casting guide rail (38), and whole base adopts casting guide rail (38), and host component is movably connected on base, and puts by gear (11), tooth bar (37) any adjusted position on base;
Described host component comprises saw-tooth milling cutter feeding part, saw-tooth milling cutter running part, saw-tooth milling cutter main shaft portion, head position adjustments part, saw-tooth milling cutter feeding partly adopts two round guide pillars (10) guiding, oil cylinder (15) drives, make feeding at a slow speed stable, saw-tooth milling cutter running part passes through belt pulley (14) by asynchronous motor (8), gear-box (13) slows down, drive saw-tooth milling cutter (19) to rotate, belt pulley adopts narrow V belt, belt pulley spacing adopts screw rod to regulate (9), saw-tooth milling cutter main shaft portion adopts asessory shaft (17), strengthen the rigidity of saw-tooth milling cutter main shaft, main shaft adopts sliding bearing (18), make saw-tooth milling cutter (19) working stability, head position adjustments partly adopts a pair of screw thread pair (16), two heads can be moved in the upper symmetry of base plate (12).
2. vertical lap seam screen casing digital control processing production line according to claim 1, is characterized in that: described upper V piece (20) adopts four circular guide pillars (26) to do track.
3. vertical lap seam screen casing digital control processing production line according to claim 1, is characterized in that: described host component (1) is by the transmission of big speed ratio reduction of speed, and belt transmission and gear drive are used in conjunction with.
4. vertical lap seam screen casing digital control processing production line according to claim 1, is characterized in that: every two saw-tooth milling cutters (19) are as a feeding group, and whole production line is comprised of 10 feeding groups.
5. a method for producing that adopts the vertical lap seam screen casing digital control processing production line described in any one in claim 1-4, is characterized in that:
Sleeve pipe (2) moves axially under the support of collar supports assembly (4), be put in the chuck of numerical control scale-division assembly (5), then chuck clamps, sleeve pipe clamp assembly (3) clamps whole sleeve pipe, saw-tooth milling cutter transmission component (1) drives saw-tooth milling cutter to rotate, saw-tooth milling cutter feeder assembly (7) is according to sleeve pipe (2) setting parameter feed speed, drive saw-tooth milling cutter radial feed, during work, according to slot length requirement, set the saw-tooth milling cutter radial feed degree of depth, complete after processing saw-tooth milling cutter auto-returned original position;
After saw-tooth milling cutter reposition, sleeve pipe clamp assembly (3) unclamps sleeve pipe (2), sleeve pipe (2) is supported by collar supports assembly (4), numerical control scale-division assembly (5) rotating casing (2), realize calibration, then sleeve pipe clamp assembly (3) gripping sleeve (2), saw-tooth milling cutter feeder assembly (7) drives saw-tooth milling cutter feeding, processing sleeve pipe;
When slot processes after a whole circle, sleeve pipe clamp assembly (3) unclamps sleeve pipe (2), and quill moves axially a segment distance to moving assembly (6) drive sleeve (2), continues next circle slot of processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210552238.6A CN102990144B (en) | 2012-12-19 | 2012-12-19 | Numerical control machining production line and method of vertical joint sieve pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210552238.6A CN102990144B (en) | 2012-12-19 | 2012-12-19 | Numerical control machining production line and method of vertical joint sieve pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102990144A CN102990144A (en) | 2013-03-27 |
| CN102990144B true CN102990144B (en) | 2014-10-22 |
Family
ID=47919550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210552238.6A Active CN102990144B (en) | 2012-12-19 | 2012-12-19 | Numerical control machining production line and method of vertical joint sieve pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102990144B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108176875A (en) * | 2018-01-10 | 2018-06-19 | 刘风岐 | For the numerical control pneumatic multiple drill press of geothermal well filter pipe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1115272A (en) * | 1994-07-22 | 1996-01-24 | 李庆辉 | Petroleum casing large angle ladder-shape seam processing method and its apparatus |
| CN201799670U (en) * | 2010-09-15 | 2011-04-20 | 济南志力数控机械有限公司 | Horizontal multi-shaft numerical control milling machine |
| CN201960176U (en) * | 2011-01-24 | 2011-09-07 | 杨锐 | Multi-cutter processing machine for stepped slotted screen pipe |
| CN201960177U (en) * | 2011-01-24 | 2011-09-07 | 杨锐 | Numerical control multi-knife milling machine for slotted sieve tube |
| CN102248237A (en) * | 2011-06-07 | 2011-11-23 | 中国石油大学(华东) | Plasma machining production line of dual-trapezoid slotted sieve tube |
| CN202367521U (en) * | 2011-12-13 | 2012-08-08 | 天津中杰科技发展有限公司 | Automatic pipe jacking device of petroleum sieve pipe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7146835B2 (en) * | 2003-04-17 | 2006-12-12 | International Roller Technology, Inc. | Method and apparatus to reduce slot width in tubular members |
-
2012
- 2012-12-19 CN CN201210552238.6A patent/CN102990144B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1115272A (en) * | 1994-07-22 | 1996-01-24 | 李庆辉 | Petroleum casing large angle ladder-shape seam processing method and its apparatus |
| CN201799670U (en) * | 2010-09-15 | 2011-04-20 | 济南志力数控机械有限公司 | Horizontal multi-shaft numerical control milling machine |
| CN201960176U (en) * | 2011-01-24 | 2011-09-07 | 杨锐 | Multi-cutter processing machine for stepped slotted screen pipe |
| CN201960177U (en) * | 2011-01-24 | 2011-09-07 | 杨锐 | Numerical control multi-knife milling machine for slotted sieve tube |
| CN102248237A (en) * | 2011-06-07 | 2011-11-23 | 中国石油大学(华东) | Plasma machining production line of dual-trapezoid slotted sieve tube |
| CN202367521U (en) * | 2011-12-13 | 2012-08-08 | 天津中杰科技发展有限公司 | Automatic pipe jacking device of petroleum sieve pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102990144A (en) | 2013-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103962602A (en) | Numerical-control multi-spindle gantry drilling and milling machine tool | |
| CN105269133A (en) | Multifunctional cutting machine and cutting method thereof | |
| CN103273142A (en) | Composite efficient double-end-face chamfering machine of internal and external teeth of polar coordinates | |
| CN205324986U (en) | Automatic rotatory pipe cutting machine of following | |
| CN102248237A (en) | Plasma machining production line of dual-trapezoid slotted sieve tube | |
| CN104084604A (en) | Inner wall machining machine tool and machining method | |
| CN103962635A (en) | High-speed precise metal cut-off circular sawing machine and application method thereof | |
| CN103878415A (en) | High-speed precise double servo feed drilling power head | |
| CN102990144B (en) | Numerical control machining production line and method of vertical joint sieve pipe | |
| RU98350U1 (en) | MULTI-PURPOSE MACHINE WITH NUMERIC SOFTWARE CONTROL AND AUTOMATIC TOOL CHANGE | |
| CN211219921U (en) | Combined positioning fixture | |
| CN203843235U (en) | Dual-servo feed high-speed precise drilling power head | |
| CN102825283A (en) | Porous part boring method and equipment thereof | |
| CN203356766U (en) | Gear-broach machine tool for spiral bevel gear | |
| CN201079838Y (en) | Electric tube chamfering machine | |
| CN109352027A (en) | A kind of long cone hole machine device of the duplex of magnetic tape trailer seat supports and processing method | |
| CN211219841U (en) | Full-automatic turntable | |
| CN205852258U (en) | A kind of valve plate integrally forming machine | |
| CN203031003U (en) | Numerical control machining production line of vertical joint sieve tube | |
| CN203944850U (en) | Inwall machining tool | |
| CN105642979B (en) | A kind of frock for end face single-spindle milling maching processing internal conical surface | |
| CN104275508B (en) | Numerically-controlled drill mechanism for drilling angled oil holes in large-sized engine crankshafts | |
| CN204603363U (en) | A kind of vertical miniature numerical control drilling machine | |
| CN204122814U (en) | Two milling head machinery processing apparatus | |
| CN103658981B (en) | Transverse feed mechanism of square tube laser cutting machine |
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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221202 Address after: 257000 403, Block F, Bainian Building, No. 9 Zibo Road, Dongying District, Dongying City, Shandong Province Patentee after: DONGYING MINGDE PETROLEUM TECHNOLOGY Co.,Ltd. Patentee after: Qingdao Deming Petroleum Machinery Co.,Ltd. Address before: 257000 No. 123, Huanghe Road, Dongying District, Dongying City, Shandong Province Patentee before: DONGYING MINGDE PETROLEUM TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |