CN104588352A - Method for removing foreign matter in small-caliber deep hole of shaft part - Google Patents
Method for removing foreign matter in small-caliber deep hole of shaft part Download PDFInfo
- Publication number
- CN104588352A CN104588352A CN201410727923.7A CN201410727923A CN104588352A CN 104588352 A CN104588352 A CN 104588352A CN 201410727923 A CN201410727923 A CN 201410727923A CN 104588352 A CN104588352 A CN 104588352A
- Authority
- CN
- China
- Prior art keywords
- hole
- product
- inlet opening
- foreign matter
- water
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
Abstract
Disclosed is a method for removing foreign matter in a small-caliber deep hole of a shaft part. A washing tool comprises a washing seat, a washing pipe joint, a locating sleeve, a washing sleeve and a washing pipe. In the washing process, the front end of a central deep hole of a product is inclined downwards, a high-pressure washing machine is started, washing water and the foreign matter flow along a clearance between the washing pipe and the central through hole of the product, part of the washing water including the foreign matter enters drainage holes in the locating sleeve through radial holes of the product and is drained out of the tool through the drainage holes, and meanwhile the radial holes of the product are washed. Part of the washing water including the foreign matter is drained into a water guide groove of the washing seat and drained out of the tool through a hole opening of the central through hole of the product, and washing is finished. Compared with the prior art, the method has the advantages that the tool is simple, mounting and dismounting are convenient, the washing effect is good, efficiency is high, and scrap iron and other foreign matter in the small-caliber blind hole type deep hole of the product can be removed fast and effectively.
Description
Technical field the present invention relates to a kind of machining process, particularly relates to a kind of method removing workpiece blind-hole type deep hole foreign matter.
Background technology is in field of machining, many components of machine all has small-caliber deep hole, especially blind hole is more common, automobile axle is as conventional axial workpiece, and the effect of its deep hole is oil line pipe etc., when utilizing drilling machine to process these deep holes, very easily make to remain the foreign matters such as some iron filings in deep hole, if the foreign matter in deep hole is not cleaned out, there is many hidden danger in the operation of axle and use, and scrapping appears in even relevant with this axle whole system.At present, the method removing axle class deep hole foreign matter mainly utilizes washer directly to rinse, but washer is more applicable for the cleaning of bigbore deep hole, small-caliber deep hole (blind hole) utilizes washer to be difficult to reach the clean effect of removal, especially the foreign matter in the small-caliber deep hole on automobile axle, existing washer cannot realize basic removal.
Summary of the invention the object of the present invention is to provide a kind of frock and the method for removing axial workpiece small-caliber deep hole foreign matter, can remove the inner foreign matter of the small-bore blind-hole type deep hole of axial workpiece effectively and rapidly, simple to operate, easy to process.
A kind of method removing axial workpiece small-bore blind-hole type deep hole foreign matter that the present invention proposes, the axial workpiece product of indication of the present invention is generally automobile axle, two radial symmetric holes that small-caliber deep hole on it mainly comprises axial center deep hole, be connected with center deep hole near medium position and be positioned at the radial pore that postmedian is connected with central through hole, the concrete scheme of this method is as follows:
(1) frock is cleaned: described frock mainly includes rinse seat, cleaning hose joint, positioning sleeve, irrigating sleeve and cleaning hose, described rinse seat is provided with radial slot hole, i.e. inlet opening, this inlet opening can be connected with the water side of high-pressure washer by water pipe; The horizontal screw be communicated with above-mentioned inlet opening is established in the front portion of above-mentioned rinse seat, described cleaning hose joint is connected with rinse seat by this screw, a cleaning hose joint part is connected with screw, in the inlet opening that another part stretches into above-mentioned rinse seat and the inner groove of end insertion rinse seat; Described cleaning hose joint stretches in the part of inlet opening and establishes longitudinal through hole, i.e. water-guiding hole, and cleaning hose joint stretches into cross through hole inlet opening part still established and communicates with water-guiding hole, i.e. pore; The horizontal slotted eye that can stretch into product is established at the rear portion of described rinse seat, i.e. guiding gutter, and the front end of this guiding gutter is connected with above-mentioned inlet opening by a transition through hole, and the positioning sleeve be fixedly connected with rinse seat is established in rear end; Described rinse seat is still provided with the passage that can realize guiding gutter internal water and discharge; The axis hole that can match with product axle body is established in the inside of described positioning sleeve, it is still established the radial direction through hole that two corresponding with two radial symmetric holes of product respectively, i.e. osculum, these two osculums communicate with axis hole respectively, and axis hole is communicated with position with osculum establishes lead-over groove, so that better overcurrent; Described positioning sleeve has radial screw, by screw, whole frock is fixed on the flushing support of high-pressure washer.After described positioning sleeve and product are installed, the two ends of product are stretched out by the axis hole two ends of positioning sleeve respectively, and the front end of product is stretched in the guiding gutter of above-mentioned rinse seat.The axis hole that can match with the axle body of product is established in the inside of described irrigating sleeve, it still establishes the through hole corresponding with the radial pore of product, i.e. inlet opening, this one end, inlet opening communicates with the axis hole of irrigating sleeve, and the other end can be communicated with the water side of high-pressure washer by water pipe; The front and rear of described inlet opening establishes the closed hole coaxial with axis hole respectively, in closed hole can mounting O-shaped rings to ensure the sealing at forward and backward two ends, inlet opening.The center deep hole of product is stretched in cleaning hose one end that described external diameter is less than product center deep hole, and this end is at the bottom of the hole of center deep hole, and then the other end stretches in the cross through hole of cleaning hose joint through the guiding gutter of above-mentioned rinse seat, transition through hole successively.
(2) product rinses: be first fixed on the flushing support of high-pressure washer with bolt by positioning sleeve, ensure that the deep hole front end, center of product is downward-sloping, then by water pipe, the inlet opening in rinse seat is communicated with the water side of high-pressure washer, by water pipe, the inlet opening on irrigating sleeve is communicated with the water side of high-pressure washer again, start high-pressure washer, flushing water enters the water-guiding hole of cleaning hose joint by the inlet opening of rinse seat, enter cross through hole again, then enter in cleaning hose, flushing water is injected at the bottom of the hole of product center through hole through cleaning hose; In addition, flushing water enters the radial pore of product by the inlet opening of irrigating sleeve, and the foreign matter in micropore and flushing water are rushed in the center deep hole of product; Flushing water and foreign matter flow along the gap between cleaning hose and product center through hole, the flushing water of part containing foreign matter enters the osculum on positioning sleeve by the radial symmetric hole of product, be expelled to frock outside by osculum, realize rinsing to the radial symmetric hole of product simultaneously; The flushing water of part containing foreign matter is expelled to after in rinse seat guiding gutter by the aperture of product center through hole and is expelled to frock outside, rinses complete.
Compared with prior art, tool has the following advantages in the present invention:
1, frock is simple, and developing result is good, and efficiency is high, can get rid of the foreign matters such as the interior iron filings of product small-caliber deep hole fast and effectively;
2, simple to operate, equipment cost is low, is arranged on washer and can uses;
3, do not need high pressure, utilize current principle to realize developing result;
4, ensure the quality of product, enhance productivity, cut down finished cost.
Description of drawings 1 is that product (automobile axle) master of embodiment looks generalized section.
Fig. 2 is that the rinse seat master of embodiment looks generalized section.
Fig. 3 is the A direction view of Fig. 2.
Fig. 4 is that the cleaning hose joint master of embodiment looks generalized section.
Fig. 5 is the A direction view of Fig. 4.
Fig. 6 is that the positioning sleeve master of embodiment looks generalized section.
Fig. 7 is the A direction view of Fig. 6.
Fig. 8 is that the irrigating sleeve master of embodiment looks generalized section.
Fig. 9 is the A direction view of Fig. 8.
The flushing frock working state schematic representation of Figure 10 embodiment.
Detailed description of the invention the present embodiment is a kind of small-caliber deep hole foreign matter method removing automobile axle, this automobile with axle as shown in Figure 1, small-caliber deep hole on it has axial center deep hole 1, i.e. Φ 5 hole, near two radial symmetric holes 2 that medium position is connected with center deep hole, i.e. Φ 7 hole, and be positioned at the radial pore 3 that postmedian is connected with central through hole, i.e. Φ 0.8 hole, below rinse frock and method mainly for the cleaning of the inner foreign matter in these 3 kinds of holes and removal, concrete scheme is as follows:
(1) frock is cleaned: mainly comprise rinse seat, cleaning hose joint, positioning sleeve, irrigating sleeve and cleaning hose.
As shown in Figure 2 and Figure 3, described rinse seat 4 is axis is horizontally disposed cylindrical metal seat, which is provided with the radial slotted eye through its axis, i.e. inlet opening 411; Horizontal screw 412 that is coaxial with it and that be communicated with above-mentioned inlet opening is established in the front portion of described rinse seat, and cleaning hose joint is connected with rinse seat by this screw; The rear portion of described rinse seat has and coaxially with it arranges the circular slotted eye that can stretch into product, i.e. guiding gutter 413, the front end of this guiding gutter is connected with above-mentioned inlet opening by a rounded transitional through hole 414 coaxial with it, rear end is established and the circular slotted eye 415 that can match with positioning sleeve outer peripheral face, i.e. locating slot, positioning sleeve is arranged in this locating slot; The inner mold groove 420 that transition pipe joint outer face can be made to insert is established between described inlet opening and transition through hole; 2 screws 416 are inwardly offered, to be connected with positioning sleeve by the front end face of guiding gutter; The outer peripheral face that described rinse seat is positioned at bottom is processed as plane 417, and the vertical interval between this plane 417 and rinse seat axis is less than the radius of above-mentioned guiding gutter, to form the passage that guiding gutter internal water can be made to discharge.
As Fig. 4, shown in Fig. 5, described cleaning hose joint 5 is made up of the cylindrical metal block that two are connected as a single entity, these two coaxial metal derby diameters are not etc., major diameter metal block outer peripheral face is processed with the external screw thread 511 corresponding with screw in rinse seat, after it is connected with screw, minor diameter metal derby stretches in the inlet opening of above-mentioned rinse seat, and minor diameter metal derby is established the manhole with its axis perpendicular, i.e. water-guiding hole 512, the manhole communicated with it is established between this water-guiding hole and the outer face of minor diameter metal derby, i.e. pore 513, this pore and little metal derby are coaxially arranged, the upper and lower orifice position described rinse seat being positioned at water-guiding hole establishes the arc-shaped slot 514 be inwardly recessed, so that flushing water enters in water-guiding hole.
As shown in Figure 6, Figure 7, described positioning sleeve 6 is axis is horizontally disposed cylindrical metal seat, its diameter is identical with the locating slot diameter in above-mentioned rinse seat, the axis hole 611 that can match with product axle body is established in this positioning sleeve inside, it is still established two respectively with its axes normal and the manhole corresponding with two symmetrical radial holes of product, i.e. osculum 612, these two osculums communicate with axis hole respectively, and axis hole is communicated with position with osculum establishes lead-over groove 613, so that better overcurrent; Described positioning sleeve has two radial screws 614, by screw, whole frock is fixed on the flushing support of high-pressure washer; Two screws 615 corresponding with the guiding gutter interior threaded bore of rinse seat are inwardly established, to realize the connection of positioning sleeve and rinse seat by positioning sleeve front end face; The outer peripheral face that described positioning sleeve is positioned at bottom is processed as plane 616, and positioning sleeve is steadily arranged on high-pressure washer;
As shown in Figure 8 and Figure 9, described irrigating sleeve 7 is axis is horizontally disposed cylindrical metal seat, the axis hole 711 that can match with the axle body of product is established in its inside, it still establishes manhole with its axes normal and corresponding with the radial pore of product, i.e. inlet opening 712, this inlet opening 712 communicates with above-mentioned axis hole 711, and the front and rear of described inlet opening establishes the closed hole 713 coaxial with axis hole respectively, in closed hole can mounting O-shaped rings to ensure the sealing at forward and backward two ends, inlet opening.
(2) product rinses:
As shown in Figure 10, the anterior outer peripheral face of positioning sleeve 6 matches with the locating slot 415 of rinse seat 4, and they are bolted on together, cleaning hose joint 5 is connected with rinse seat 4 by screw, its minor diameter metal derby stretches in the inlet opening 411 of rinse seat 4, and this inlet opening 411 is connected with the water side of high-pressure washer by water pipe 8; After positioning sleeve 6 and product 10 are installed, the two ends of product 10 are stretched out by axis hole 611 two ends of positioning sleeve 6 respectively, the front end of product 10 is stretched in the guiding gutter 413 of above-mentioned rinse seat 4, two osculums 612 of positioning sleeve 6 are connected with two Φ 7 holes 2 of product 10 are corresponding respectively, cleaning hose 9 is flat tubes that external diameter is less than product 10 Φ 5 hole 1, its one end is stretched in Φ 5 hole 1 of product 10, and this end is at the bottom of the hole in Φ 5 hole 1, then the other end stretches in the pore 513 of cleaning hose joint 5 through the guiding gutter 413 of above-mentioned rinse seat 4, transition through hole 414 successively; Irrigating sleeve 7 is arranged on the position, Φ 0.8 hole 3 of product 10, after installation, the inlet opening 712 of irrigating sleeve 7 is corresponding with Φ 0.8 hole 3 to be connected, and mounting O-shaped rings 15 in two closed holes of irrigating sleeve 7, the inlet opening 712 of irrigating sleeve 7 is communicated with the water side of high-pressure washer by water pipe 11.Positioning sleeve 6 is fixed on the flushing support of high-pressure washer, ensure that the deep hole front end, center of product 10 is downward-sloping, start high-pressure washer, flushing water enters the water-guiding hole 512 of cleaning hose joint 5 by the inlet opening 411 of rinse seat 4, enter pore 513 again, then enter in cleaning hose 9, flushing water is injected at the bottom of the hole in product 10 Φ 5 hole 1 through cleaning hose; In addition, flushing water enters foreign matter in the hole 3, Φ 0.8 hole 3, Φ 0.8 of product 10 by the inlet opening 712 of irrigating sleeve 7 and flushing water is rushed in Φ 5 hole 1 of product 10; Flushing water and foreign matter flow along the gap between cleaning hose 9 and product 10 Φ 5 hole 1, the flushing water of part containing foreign matter enters the osculum 612 on positioning sleeve 6 by Φ 7 hole 2 of product 10, be expelled to frock outside by osculum 612, realize rinsing to Φ 7 hole 2 of product 10 simultaneously; The flushing water of part containing foreign matter is expelled in rinse seat 4 guiding gutter 413 by the aperture in product 10 Φ 5 hole 1, and discharges frock outside, rinses complete.
Claims (4)
1. remove a method for axial workpiece small-caliber deep hole foreign matter, it is characterized in that:
(1) clean frock: described frock mainly includes rinse seat, cleaning hose joint, positioning sleeve, irrigating sleeve and cleaning hose, described rinse seat is provided with radial inlet opening, and this inlet opening can be connected with the water side of high-pressure washer by water pipe; The horizontal screw be communicated with above-mentioned inlet opening is established in the front portion of above-mentioned rinse seat, described cleaning hose joint is connected with rinse seat by this screw, a cleaning hose joint part is connected with screw, in the inlet opening that another part stretches into above-mentioned rinse seat and the inner groove of end insertion rinse seat; Described cleaning hose joint stretches in the part of inlet opening and establishes longitudinal water-guiding hole, and cleaning hose joint stretches into horizontal pore inlet opening part still established and communicates with water-guiding hole; The horizontal guiding gutter that can stretch into product is established at the rear portion of described rinse seat, and the front end of this guiding gutter is connected with above-mentioned inlet opening by a transition through hole, and the positioning sleeve be fixedly connected with rinse seat is established in rear end; Described rinse seat is still provided with the passage that can realize guiding gutter internal water and discharge; The axis hole that can match with product axle body is established in the inside of described positioning sleeve, it is still established the radial osculum that two corresponding with two radial symmetric holes of product respectively, and these two osculums communicate with axis hole respectively; Described positioning sleeve has radial screw, by screw, whole frock is fixed on the flushing support of high-pressure washer; After described positioning sleeve and product are installed, the two ends of product are stretched out by the axis hole two ends of positioning sleeve respectively, and the front end of product is stretched in the guiding gutter of above-mentioned rinse seat; The axis hole that can match with the axle body of product is established in the inside of described irrigating sleeve, it still establishes the inlet opening corresponding with the radial pore of product, this one end, inlet opening communicates with the axis hole of irrigating sleeve, and the other end can be communicated with the water side of high-pressure washer by water pipe; The front and rear of described inlet opening establishes the closed hole coaxial with axis hole respectively, in closed hole can mounting O-shaped rings to ensure the sealing at forward and backward two ends, inlet opening; The center deep hole of product is stretched in cleaning hose one end that described external diameter is less than product center deep hole, and this end is at the bottom of the hole of center deep hole, and then the other end stretches in the cross through hole of cleaning hose joint through the guiding gutter of above-mentioned rinse seat, transition through hole successively;
(2) product rinses: be first fixed on the flushing support of high-pressure washer with bolt by positioning sleeve, ensure that the deep hole front end, center of product is downward-sloping, then by water pipe, the inlet opening in rinse seat is communicated with the water side of high-pressure washer, by water pipe, the inlet opening on irrigating sleeve is communicated with the water side of high-pressure washer again, start high-pressure washer, flushing water enters the water-guiding hole of cleaning hose joint by the inlet opening of rinse seat, enter cross through hole again, then enter in cleaning hose, flushing water is injected at the bottom of the hole of product center through hole through cleaning hose; In addition, flushing water enters the radial pore of product by the inlet opening of irrigating sleeve, and the foreign matter in micropore and flushing water are rushed in the center deep hole of product; Flushing water and foreign matter flow along the gap between cleaning hose and product center through hole, the flushing water of part containing foreign matter enters the osculum on positioning sleeve by the radial symmetric hole of product, be expelled to frock outside by osculum, realize rinsing to the radial symmetric hole of product simultaneously; The flushing water of part containing foreign matter is expelled to after in rinse seat guiding gutter by the aperture of product center through hole and is expelled to frock outside, rinses complete.
2. the method for removal axial workpiece small-caliber deep hole foreign matter according to claim 1, is characterized in that: the axis hole of described positioning sleeve is communicated with osculum that position establishes can the lead-over groove of better overcurrent.
3. the method for removal axial workpiece small-caliber deep hole foreign matter according to claim 1, it is characterized in that: the circular locating slot that can match with positioning sleeve outer peripheral face that to be connected as a single entity with it is established in the guiding gutter rear end of described rinse seat, and positioning sleeve realizes closing guiding gutter rear end after being arranged on this locating slot.
4. the method for removal axial workpiece small-caliber deep hole foreign matter according to claim 1, is characterized in that: the upper and lower orifice position described rinse seat being positioned at water-guiding hole establishes the arc-shaped slot be inwardly recessed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410727923.7A CN104588352B (en) | 2014-12-03 | 2014-12-03 | A kind of method removing axial workpiece small-caliber deep hole foreign body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410727923.7A CN104588352B (en) | 2014-12-03 | 2014-12-03 | A kind of method removing axial workpiece small-caliber deep hole foreign body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104588352A true CN104588352A (en) | 2015-05-06 |
| CN104588352B CN104588352B (en) | 2016-08-24 |
Family
ID=53114603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410727923.7A Active CN104588352B (en) | 2014-12-03 | 2014-12-03 | A kind of method removing axial workpiece small-caliber deep hole foreign body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104588352B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105537199A (en) * | 2015-12-24 | 2016-05-04 | 大连德迈仕精密科技股份有限公司 | Removing device for foreign matter in center hole of shaft parts and rust-preventative oil on column faces |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101524689A (en) * | 2009-04-03 | 2009-09-09 | 大连现代辅机开发制造有限公司 | Method and special device for cleaning and blowing stuffy hole of crankshaft oil duct |
| JP2011132875A (en) * | 2009-12-24 | 2011-07-07 | Honda Motor Co Ltd | Oil hole washing device of crankshaft |
| CN102784776A (en) * | 2012-09-05 | 2012-11-21 | 零八一电子集团四川天源机械有限公司 | Device for cleaning engine camshaft oil duct hole |
| CN102873633A (en) * | 2012-09-14 | 2013-01-16 | 大连德迈仕精密轴有限公司 | Method for extruding and polishing inner hole of shaft workpiece |
| CN104132136A (en) * | 2014-07-18 | 2014-11-05 | 天润曲轴股份有限公司 | Crankshaft oil hole cleaning and sealing device |
-
2014
- 2014-12-03 CN CN201410727923.7A patent/CN104588352B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101524689A (en) * | 2009-04-03 | 2009-09-09 | 大连现代辅机开发制造有限公司 | Method and special device for cleaning and blowing stuffy hole of crankshaft oil duct |
| JP2011132875A (en) * | 2009-12-24 | 2011-07-07 | Honda Motor Co Ltd | Oil hole washing device of crankshaft |
| CN102784776A (en) * | 2012-09-05 | 2012-11-21 | 零八一电子集团四川天源机械有限公司 | Device for cleaning engine camshaft oil duct hole |
| CN102873633A (en) * | 2012-09-14 | 2013-01-16 | 大连德迈仕精密轴有限公司 | Method for extruding and polishing inner hole of shaft workpiece |
| CN104132136A (en) * | 2014-07-18 | 2014-11-05 | 天润曲轴股份有限公司 | Crankshaft oil hole cleaning and sealing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105537199A (en) * | 2015-12-24 | 2016-05-04 | 大连德迈仕精密科技股份有限公司 | Removing device for foreign matter in center hole of shaft parts and rust-preventative oil on column faces |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104588352B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205571451U (en) | Cylinder jacket turning anchor clamps | |
| CN201603726U (en) | Contractible scraper for cleaning oil pipe | |
| CN103990627A (en) | High pressure rust cleaning device and method of hydraulic pipe fittings | |
| CN103977620B (en) | Adjustable slit blowdown backwash filter | |
| CN205701735U (en) | A kind of oil pipe snaking capsule-type scraper | |
| CN104588352A (en) | Method for removing foreign matter in small-caliber deep hole of shaft part | |
| CN210160818U (en) | Numerical control lathe cutting cleaning device | |
| CN109013608A (en) | A kind of arch oil storage tank deposit remove device | |
| CN104841676A (en) | Steam turbine lubricating oil switching washing system and method | |
| CN203390729U (en) | Collet fixing device | |
| CN107971306B (en) | Cleaning machine for cleaning small-caliber bent pipe fittings | |
| CN204546679U (en) | Water under high pressure deburring cleaning machine | |
| CN204842989U (en) | Automatic unloading mechanism of numerical control lathe main shaft | |
| CN205341425U (en) | Cleaning machine | |
| CN214919296U (en) | Oil cooling forming machine for cold-drawn steel pipe | |
| CN210024016U (en) | Easily-detachable two-body wire cutting nozzle | |
| CN204152854U (en) | A kind of convenient centrifugal pump rinsed | |
| CN107282554B (en) | Online secondary cleaning device for aluminum pipe | |
| CN203600051U (en) | Special full-automatic spindle for elastic chuck inner diameter grinding machine | |
| CN209886412U (en) | Copper pipe drawing and cleaning device | |
| CN217001742U (en) | Sedimentation cup for well repair | |
| CN202411051U (en) | Pipeline cleaner | |
| CN204893568U (en) | Automatic machining center's frock clamp clearance structure | |
| CN101890416A (en) | Cleaner for inner wall of steel pipe | |
| CN206428038U (en) | Vertical resin capturing device |
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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hing Fat road Lushun Development Zone in Dalian City, Liaoning Province, No. 88 116052 Patentee after: DALIAN DEMAISHI PRECISION TECHNOLOGY CO., LTD. Address before: Hing Fat road Lushun Development Zone in Dalian City, Liaoning Province, No. 88 116052 Patentee before: Dalian Liande Maishi Precision Shaft Co., Ltd. |