CN114918456A - Automatic follow-up supporting device for BTA drill rod - Google Patents
Automatic follow-up supporting device for BTA drill rod Download PDFInfo
- Publication number
- CN114918456A CN114918456A CN202210722747.2A CN202210722747A CN114918456A CN 114918456 A CN114918456 A CN 114918456A CN 202210722747 A CN202210722747 A CN 202210722747A CN 114918456 A CN114918456 A CN 114918456A
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- China
- Prior art keywords
- bta
- drill rod
- double
- oil supply
- elastic supporting
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- 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.)
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- 239000000956 alloy Substances 0.000 claims abstract description 63
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 63
- 238000005192 partition Methods 0.000 claims description 38
- 238000005553 drilling Methods 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 17
- 239000000843 powder Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000003754 machining Methods 0.000 abstract description 10
- 238000005520 cutting process Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract 5
- 238000000034 method Methods 0.000 description 6
- 239000002173 cutting fluid Substances 0.000 description 5
- 239000000110 cooling liquid Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention provides an automatic follow-up supporting device for a BTA (BTA) drill rod, which comprises an oil supply device assembly, wherein a workpiece is clamped at the front end of the oil supply device assembly, a drill rod is matched in the oil supply device assembly, the front end of the drill rod is connected with a BTA bit, a front separation disc is fixed in the oil supply device assembly through a front check ring, a rear separation disc is fixed at the rear side of the front separation disc through a rear check ring, and a double-alloy elastic supporting sleeve is arranged between the front separation disc and the rear separation disc; a step ring groove is formed in the middle of the drill rod and matched with the double-alloy elastic supporting sleeve; by arranging the BTA drill rod automatic follow-up supporting device, the drill rod automatic follow-up supporting device ensures that the auxiliary support for the drill rod is automatically formed under the condition of continuous operation of a machine tool, and has obvious effects on ensuring the machining efficiency and the stable cutting state of a cutter.
Description
Technical Field
The invention relates to the technical field of deep hole processing, in particular to an automatic follow-up supporting device for a BTA (drilling machine) drill rod.
Background
The deep hole is generally a hole having a ratio of hole depth to hole diameter of more than 5 to 10 and up to 100 or more. In deep hole processing, a BTA deep hole drilling method is a processing mode with the widest application range and the strongest adaptability, the processing aperture range can reach phi 15-phi 200, and the depth-diameter ratio can reach more than 100, during processing, high-pressure cutting fluid is supplied into a sealing cavity of an oil supplier and reaches a cutting area of a drill bit part, and the cutting fluid carries cuttings from a hole in the drill bit to the interior of a drill rod and is finally discharged from the tail part of the drill rod.
For holes with larger depth-diameter ratio, the deviation of the axis of the processed inner hole is inevitable, and the main reason is that the length-diameter ratio of simple sections of the drill rod at two positions of the drill bit guide part and the tail end supporting part of the oil feeder is too large, so that the drill rod is bent, radial additional force is generated to act on a drill bit guide key, the self-guiding stable state of the drill bit is damaged, the tendency of deviating from the rotation center of a workpiece is generated, the deviation of the axis of the processed inner hole is formed, and the deviation tendency is irreversible.
For drilling holes with the depth-diameter ratio of more than 100:1, in order to control the deflection of the processed inner hole, a corresponding auxiliary support must be added in the middle of the drill rod so as to ensure the stable state of the drill rod in time. As the BTA drilling method is a totally-enclosed machining mode from cooling liquid to a cutter, the conventional existing mode is that a machine tool is stopped firstly, the cooling liquid is closed, an auxiliary support is installed in the middle of a drill rod after the drill rod is withdrawn, and secondary cutting is carried out for machining, so that the machining efficiency is greatly influenced.
Therefore, an automatic follow-up supporting device for the BTA drill rod is needed, and the problem that the machining efficiency is influenced because the deflection of a machining inner hole is prevented by mainly depending on a mode of stopping and installing an auxiliary support midway in the existing BTA drilling method for machining a deep hole is solved; by arranging the BTA drill rod automatic follow-up supporting device, the drill rod automatic follow-up supporting device ensures that the auxiliary support for the drill rod is automatically formed under the condition of continuous operation of a machine tool, and has obvious effects on ensuring the machining efficiency and the stable cutting state of a cutter.
Disclosure of Invention
The invention aims to provide an automatic follow-up supporting device of a BTA drill rod, which aims to solve the problem that the processing efficiency is influenced by the deflection of a processing inner hole in the mode that the deep hole processing by the existing BTA drilling method mainly depends on the midway halt and installation of an auxiliary support.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides an automatic follow-up supporting device for a BTA (drill-aid) drill rod, which comprises an oil supplier assembly, wherein a workpiece is clamped at the front end of the oil supplier assembly, a drill rod is matched in the oil supplier assembly, the front end of the drill rod is connected with a BTA bit, a front partition disc is fixed in the oil supplier assembly through a front check ring, a rear partition disc is fixed at the rear side of the front partition disc through a rear check ring, and a double-alloy elastic supporting sleeve is arranged between the front partition disc and the rear partition disc; and a step ring groove is arranged in the middle of the drill rod and matched with the double-alloy elastic supporting sleeve.
Preferably, the oil supply device assembly comprises an oil supply device main shaft, a conical disc is mounted at the front end of the oil supply device main shaft and used for clamping the workpiece, a drill bit guide sleeve is arranged on the rear side of the conical disc, a rotary sealing ring is arranged between the drill bit guide sleeve and the oil supply device main shaft, an oil supply pipe is communicated with the middle of the oil supply device main shaft, a drill rod guide sleeve is arranged at the tail of the oil supply device main shaft, and a front sealing ring and a rear sealing ring are arranged between the drill rod guide sleeve and the drill rod.
Preferably, the front partition disc and the rear partition disc are both provided with oil passing holes.
Preferably, the bore diameter of the inner bore of the front partition plate is larger than the outer diameter of the BTA bit, and the bore diameter of the inner bore of the rear partition plate is smaller than the outer diameter of the BTA bit.
Preferably, the double-alloy elastic supporting sleeve is provided with a kerf opening, one side of the inner hole of the double-alloy elastic supporting sleeve is provided with an arc-shaped groove, the front end of the inner hole is provided with a conical surface, the outer side of the double-alloy elastic supporting sleeve is provided with a protrusion along the axial direction, a hard alloy powder layer is sintered on the outer surface of the protrusion, and the rear end of the double-alloy elastic supporting sleeve is provided with a convex block.
Preferably, the double-alloy elastic supporting sleeve is made of a 65Mn and hard alloy bimetal material.
Preferably, the thickness of the cemented carbide powder layer is 0.3 mm.
Preferably, the front end of step annular is equipped with the conical surface, and its rear end is equipped with the recess, the recess with the lug cooperatees, is used for making the two alloy elastic support cover is fixed in on the drilling rod, works as two alloy elastic support cover are fixed in when the drilling rod is last, the external diameter of the two with BTA bit's external diameter equals, works as two alloy elastic support cover slidable cover is located when the drilling rod is last, the external diameter of the two is greater than the hole aperture of the hole of aforementioned partition disc.
Compared with the prior art, the invention has the following beneficial technical effects:
compared with the common auxiliary supporting device for the drill rod, the automatic follow-up supporting device for the BTA drill rod can realize automatic follow-up supporting of the drill rod under a continuous processing state without shutdown, and simultaneously realize that the follow-up double-alloy elastic supporting sleeve automatically disengages and stays at a specified position when the drill rod retreats, thereby ensuring the processing efficiency, realizing the stable operation of a deep hole drilling state, and finally effectively controlling the axial deviation of a deep hole drilling processing inner hole; the double-alloy elastic supporting sleeve of the device is made of common materials, has simple manufacturing process and can be used for a long time; the device has compact structure, can be conveniently installed without changing the structure of the oil distributor of the existing deep hole machine tool, has strong practicability and is convenient for popularization and application in a large range.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural view of an automatic BTA drill rod follow-up supporting device provided by the invention;
FIG. 2 is a partial structural schematic view of a double-alloy elastic supporting sleeve in the BTA rod automatic follow-up supporting device provided by the invention;
FIG. 3 is a schematic structural view of a step annular groove part in the automatic BTA rod follow-up supporting device provided by the invention;
in the figure: 1. the oil feeding device comprises an oil feeding device main shaft, 2, a drill bit guide sleeve, 3, a conical disc, 4, a workpiece, 5, a BTA (BTA-tree) drill bit, 6, a rotary sealing ring, 7, a front retainer ring, 8, a front spacer disc, 9, a double-alloy elastic supporting sleeve, 10, a rear retainer ring, 11, a rear spacer disc, 12, a front sealing ring, 13, a rear sealing ring, 14, a drill rod guide sleeve, 15, a step ring groove, 16, a drill rod, 17 and an oil feeding pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention aims to provide an automatic follow-up supporting device of a BTA drill rod, which aims to solve the problems that the processing inner hole deflection is prevented and the processing efficiency is influenced in the way that the existing BTA drilling method for processing deep holes mainly depends on the auxiliary support installed by stopping midway; by arranging the BTA drill rod automatic follow-up supporting device, the drill rod automatic follow-up supporting device ensures that the auxiliary support for the drill rod is automatically formed under the condition of continuous operation of a machine tool, and has obvious effects on ensuring the machining efficiency and the stable cutting state of a cutter.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1:
the embodiment provides an automatic follow-up supporting device for a BTA (drilling Take-in) drill rod 16, which comprises an oil supply device assembly, wherein a workpiece 4 is clamped at the front end of the oil supply device assembly, the drill rod 16 is matched in the oil supply device assembly, a BTA bit 5 is connected at the front end of the drill rod 16, a front partition plate 8 is fixed in the oil supply device assembly through a front check ring 7, a rear partition plate 11 is fixed at the rear side of the front partition plate 8 through a rear check ring 10, and a double-alloy elastic supporting sleeve 9 is arranged between the front partition plate 8 and the rear partition plate 11; the middle part of the drill rod 16 is provided with a step ring groove 15, and the step ring groove 15 is matched with the double-alloy elastic supporting sleeve 9.
Specifically, the oil supply device assembly comprises an oil supply device main shaft 1, a conical disc 3 is installed at the front end of the oil supply device main shaft 1 and used for clamping a workpiece 4, a drill bit guide sleeve 2 is arranged on the rear side of the conical disc 3 and used for guiding a BTA (BTA) drill bit 5, a rotary sealing ring 6 is arranged between the drill bit guide sleeve 2 and the oil supply device main shaft 1 to achieve sealing, an oil supply pipe 17 is communicated with the middle of the oil supply device main shaft 1, cutting fluid is supplied from the oil supply pipe 17, a drill rod 16 guide sleeve 14 is arranged at the tail of the oil supply device main shaft 1 and used for guiding a drill rod 16, and a front sealing ring 12 and a rear sealing ring 13 are arranged between the drill rod 16 guide sleeve 14 and the drill rod 16.
Further, the front partition plate 8 and the rear partition plate 11 are provided with oil passing holes so that the cutting fluid can smoothly pass through and enter the cutting area.
Further, the inner hole diameter of the front partition plate 8 is larger than the outer diameter of the BTA bit 5, and the inner hole diameter of the rear partition plate 11 is smaller than the outer diameter of the BTA bit 5.
Further, as shown in fig. 2, the double-alloy elastic supporting sleeve 9 is made of a 65Mn and hard alloy bimetal material, the double-alloy elastic supporting sleeve 9 is provided with a lancing opening, the lancing opening enables the double-alloy elastic supporting sleeve 9 to be opened, an arc-shaped groove is formed in one side of an inner hole of the double-alloy elastic supporting sleeve to ensure that the double-alloy elastic supporting sleeve can slide on the outer wall of the drill rod 16, a conical surface is formed in the front end of the double-alloy elastic supporting sleeve and can be matched with the conical surface of the stepped ring groove 15 through horizontal motion, so that opening movement is convenient to achieve, protrusions are axially formed in the outer side of the double-alloy elastic supporting sleeve 9, a gap between the protrusions can allow cutting fluid to pass smoothly, a hard alloy powder layer is sintered on the outer surface of the protrusions, the thickness of the hard alloy powder layer is 0.3mm, and a protruding block is arranged at the rear end of the double-alloy elastic supporting sleeve 9.
Furthermore, the front end of the step ring groove 15 is provided with a conical surface which is matched with the conical surface of the double-alloy elastic supporting sleeve 9, the rear end of the step ring groove is provided with a groove which is matched with a projection and is used for fixing the double-alloy elastic supporting sleeve 9 on the drill rod 16, when the double-alloy elastic supporting sleeve 9 is fixed on the drill rod 16, namely the double-alloy elastic supporting sleeve 9 is limited in the step ring groove 15, the outer diameters of the double-alloy elastic supporting sleeve 9 and the BTA drill bit 5 are equal, and the bore diameter of the inner bore of the front partition disc 8 is larger than that of the BTA drill bit 5, so that the double-alloy elastic supporting sleeve 9 can enter the inner bore of the workpiece 4 along with the drill rod 16 to play a supporting role; when the double-alloy elastic supporting sleeve 9 is slidably sleeved on the drill rod 16, the outer diameters of the double-alloy elastic supporting sleeve and the drill rod are larger than the inner hole diameter of the front partition plate 8, so that the double-alloy elastic supporting sleeve 9 cannot enter the inner hole of the workpiece 4, and when the drill rod 16 is withdrawn, the inner hole diameter of the rear partition plate 11 is smaller than the outer diameter of the BTA bit 5, namely smaller than the outer diameter of the double-alloy elastic supporting sleeve 9 in an open state at the moment, and the double-alloy elastic supporting sleeve 9 is limited between the front partition plate 8 and the rear partition plate 11.
The invention provides an automatic BTA (BTA) drill rod follow-up supporting device, which comprises the following steps of:
step 1: in the arrangement of the parts of the structural schematic diagram of fig. 1, the workpiece 4 is in a primary rotary motion, the drill rod 16 is not rotated and is in a forward feed motion.
Step 2: the stepped ring groove 15 of the drill rod 16 passes through the rear sealing ring 13 and the front sealing ring 12 in sequence, and the sealing state is stably kept.
And step 3: the step ring groove 15 of the drill rod 16 moves to the double-alloy elastic supporting sleeve 9, the double-alloy elastic supporting sleeve 9 retracts to be matched with the step ring groove 15, the outer circle retracts to pass through the inner hole of the front partition plate 8, the double-alloy elastic supporting sleeve 9 enters the drill bit guide sleeve 2 to form mutual rotation action of the double-alloy elastic supporting sleeve 9 and the drill rod 16, and the protruding block is matched with the groove to realize rotation stopping of the double-alloy elastic supporting sleeve 9 and the drill rod 16.
And 4, step 4: the double-alloy elastic supporting sleeve 9 enters the inner hole of the workpiece to form a stable follow-up support.
And 5: after drilling, the drill rod 16 retracts backwards, and the double-alloy elastic supporting sleeve 9 is finally blocked by the inner hole of the rear partition plate 11, slides out of the step annular groove 15, is matched on the outer circular surface of the drill rod 16 and stays between the front partition plate 8 and the rear partition plate 11.
Step 6: the BTA bit 5 is retracted into the bore of the bit guide sleeve 2 and a machining cycle is complete.
The principle and the implementation mode of the invention are explained by applying a specific embodiment, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.
Claims (8)
1. The utility model provides an automatic follow-up supporting arrangement of BTA drilling rod, is including awarding the oily ware subassembly, the front end clamping of awarding the oily ware subassembly has the work piece, it has the drilling rod to award the cooperation in the oily ware subassembly, the front end of drilling rod is connected with the BTA drill bit, its characterized in that: a front partition disc is fixed in the oil supply assembly through a front check ring, a rear partition disc is fixed on the rear side of the front partition disc through a rear check ring, and a double-alloy elastic supporting sleeve is arranged between the front partition disc and the rear partition disc; and a step ring groove is arranged in the middle of the drill rod and matched with the double-alloy elastic supporting sleeve.
2. The BTA stem automatic follower support device of claim 1, wherein: the oil supply device assembly comprises an oil supply device main shaft, a conical disc is mounted at the front end of the oil supply device main shaft and used for clamping the workpiece, a drill bit guide sleeve is arranged on the rear side of the conical disc, a rotary sealing ring is arranged between the drill bit guide sleeve and the oil supply device main shaft, an oil supply pipe is communicated with the middle of the oil supply device main shaft, a drill rod guide sleeve is arranged at the tail of the oil supply device main shaft, and a front sealing ring and a rear sealing ring are arranged between the drill rod guide sleeve and the drill rod.
3. The BTA stem automatic follower support device of claim 1, wherein: the front partition plate and the rear partition plate are both provided with oil passing holes.
4. The BTA stem automatic follower support device of claim 1, wherein: the aperture of the inner hole of the front partition plate is larger than the outer diameter of the BTA bit, and the aperture of the inner hole of the rear partition plate is smaller than the outer diameter of the BTA bit.
5. The BTA stem automatic follower support device of claim 4, wherein: the double-alloy elastic supporting sleeve is provided with a kerf opening, an arc-shaped groove is formed in one side of an inner hole of the double-alloy elastic supporting sleeve, a conical surface is arranged at the front end of the double-alloy elastic supporting sleeve, a protrusion is axially arranged on the outer side of the double-alloy elastic supporting sleeve, a hard alloy powder layer is sintered on the outer surface of the protrusion, and a protruding block is arranged at the rear end of the double-alloy elastic supporting sleeve.
6. The BTA stem automatic follower support device of claim 5, wherein: the double-alloy elastic supporting sleeve is made of a 65Mn and hard alloy bimetal material.
7. The BTA stem automatic follower support device of claim 5, wherein: the thickness of the hard alloy powder layer is 0.3 mm.
8. The BTA stem automatic follower support device of claim 5, wherein: the front end of step annular is equipped with the conical surface, and its rear end is equipped with the recess, the recess with the lug cooperatees, is used for making two alloy elastic support cover are fixed in on the drilling rod, work as two alloy elastic support cover are fixed in when on the drilling rod, the external diameter of the two with BTA bit's external diameter equals, work as two alloy elastic support cover slidable sleeve is located when on the drilling rod, the external diameter of the two is greater than the hole aperture of preceding partition dish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210722747.2A CN114918456A (en) | 2022-06-20 | 2022-06-20 | Automatic follow-up supporting device for BTA drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210722747.2A CN114918456A (en) | 2022-06-20 | 2022-06-20 | Automatic follow-up supporting device for BTA drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114918456A true CN114918456A (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210722747.2A Pending CN114918456A (en) | 2022-06-20 | 2022-06-20 | Automatic follow-up supporting device for BTA drill rod |
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| CN (1) | CN114918456A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62264813A (en) * | 1986-05-09 | 1987-11-17 | Honda Motor Co Ltd | Deep hole drilling machine |
| JP2000033506A (en) * | 1998-07-17 | 2000-02-02 | Daido Steel Co Ltd | Support for deep hole machining shaft |
| CN201539218U (en) * | 2009-12-02 | 2010-08-04 | 中国地质大学（武汉） | Strengthening single acting device for horizontal core drill tool |
| CN203380698U (en) * | 2013-07-09 | 2014-01-08 | 西安理工大学 | Oil supply of cutter rotary type deep hole drill |
| CN103624500A (en) * | 2013-12-13 | 2014-03-12 | 哈尔滨电气动力装备有限公司 | Deep hole machining process for rotor shaft of motor |
| CN203565918U (en) * | 2013-11-22 | 2014-04-30 | 中原特钢股份有限公司 | Device for improving drill rod stability |
| CN206316404U (en) * | 2016-11-12 | 2017-07-11 | 山西江淮重工有限责任公司 | A kind of ultra-deep blind hole processing tool |
| CN108971565A (en) * | 2018-08-24 | 2018-12-11 | 中船动力有限公司 | Long drill pipe resilient supporting unit |
| CN112247207A (en) * | 2020-10-19 | 2021-01-22 | 李海潮 | Deep hole drilling machine oil supply device assembly |
| CN215239684U (en) * | 2021-07-22 | 2021-12-21 | 德州普利森机床有限公司 | Deep hole machine tool oil supply device structure |
-
2022
- 2022-06-20 CN CN202210722747.2A patent/CN114918456A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62264813A (en) * | 1986-05-09 | 1987-11-17 | Honda Motor Co Ltd | Deep hole drilling machine |
| JP2000033506A (en) * | 1998-07-17 | 2000-02-02 | Daido Steel Co Ltd | Support for deep hole machining shaft |
| CN201539218U (en) * | 2009-12-02 | 2010-08-04 | 中国地质大学（武汉） | Strengthening single acting device for horizontal core drill tool |
| CN203380698U (en) * | 2013-07-09 | 2014-01-08 | 西安理工大学 | Oil supply of cutter rotary type deep hole drill |
| CN203565918U (en) * | 2013-11-22 | 2014-04-30 | 中原特钢股份有限公司 | Device for improving drill rod stability |
| CN103624500A (en) * | 2013-12-13 | 2014-03-12 | 哈尔滨电气动力装备有限公司 | Deep hole machining process for rotor shaft of motor |
| CN206316404U (en) * | 2016-11-12 | 2017-07-11 | 山西江淮重工有限责任公司 | A kind of ultra-deep blind hole processing tool |
| CN108971565A (en) * | 2018-08-24 | 2018-12-11 | 中船动力有限公司 | Long drill pipe resilient supporting unit |
| CN112247207A (en) * | 2020-10-19 | 2021-01-22 | 李海潮 | Deep hole drilling machine oil supply device assembly |
| CN215239684U (en) * | 2021-07-22 | 2021-12-21 | 德州普利森机床有限公司 | Deep hole machine tool oil supply device structure |
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