CN208696377U - A kind of deep hole machining intelligent drilling rod system with Tilting Pad block - Google Patents
A kind of deep hole machining intelligent drilling rod system with Tilting Pad block Download PDFInfo
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- CN208696377U CN208696377U CN201821239170.5U CN201821239170U CN208696377U CN 208696377 U CN208696377 U CN 208696377U CN 201821239170 U CN201821239170 U CN 201821239170U CN 208696377 U CN208696377 U CN 208696377U
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- China
- Prior art keywords
- drilling rod
- tilting pad
- deep hole
- hole
- pad block
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Abstract
The utility model belongs to advanced Deep-Hole Drilling Technology field, in order to improve drilling rod vibration, improve drilling rod running accuracy, reduction temperature rise, the utility model provides a kind of deep hole machining intelligent drilling rod system with Tilting Pad block, including drilling rod, the oil delivering unit being connect with drilling rod and the deep hole tools for being installed on drilling rod end, the continuous Varied clearance flowed for cutting fluid is equipped between the drilling rod and finished work hole hole wall at deep hole tools end, the flowing cutting fluid in continuous Varied clearance forms the dynamic oil film pressure for clamping drilling rod.The drill pipe system can realize the purpose of the working condition of real-time control drilling rod by the tilt angle of control computer regulated tilting pad so as to adjust the working condition of Tilting Pad block drilling rod in real time.
Description
Technical field
The utility model belongs to advanced Deep-Hole Drilling Technology field, and in particular to a kind of deep hole with Tilting Pad block
Process intelligent drilling rod system.
Background technique
Under normal conditions, the motion mode that deep hole processing system has cutter rotary work piece to feed, cutter swivel feeding workpiece
Static and three kinds of modes of cutter static workpiece swivel feeding, the utility model are applied to the processing side of cutter rotary work piece feeding
Formula.
Deep hole machining difficulty is high, and labor content is big, it has also become the key process in machining.With BTA cutter system
For system, BTA tooling system belongs to interior chip removal system, mainly by awarding the structures such as oily device, drill pipe system, tooling system and drilling chip extractor
Composition, when work, cutting fluid reaches tool nose from oil transportation channel outside cutter by awarding oily device and carries out cooling and lubricating, and will cut
Bits through being gone out outward by cutting fluid inside drilling rod, due to cutter inside cavity pressure is very high and meanwhile cutter rotation speed quickly,
It ensure that the discharge of chip and the machining accuracy of workpiece.
The sliding bearing that can radially incline is that the wedge-shaped dynamic pressure oil film formed between relative motion surface is leaned on to carry out radial carrying
's.Forming dynamic pressure oil film must have there are three necessary condition: the gap between 1. liang of workpiece must have wedge gap；2. liang workpiece
Lubricating oil or other liquid must be continuously-filled between surface；3. liang workpiece surface must have relative sliding velocity.Its movement side
To must assure that lubricating oil flows into from big section, come out from small bore.In engineering, for improve axis running accuracy and stability,
Common multi-oil wedge bearing.
During BTA deep hole machining, there is rotor dynamic in the characteristics of high speed precession of drilling rod, existing hydrldynamic pressure lubrication again
Characteristic, so, using the characteristic of multi-oil wedge bearing, the running accuracy and stability of Lai Tigao drilling rod, are practicable.
Meanwhile can inclination angle wedge shape tile fragment pivot angle characteristic, fluid wedge gap can be had an important influence on, so influence can incline wedge shape watt
Block pressure distribution, oil film thickness distribution, reasonably select drilling rod tilting pad tilt angle to improve drilling rod stability and
Running accuracy has an important influence.
Summary of the invention
The purpose of this utility model is to propose a kind of deep hole machining intelligent drilling rod system with Tilting Pad block, this
Drilling rod can change the distribution of chip hydraulic coupling, and then make drilling rod similar to four paws card by the tilt angle of change tilting pad angle
Disk is the same, is cut hydraulic coupling clamping, achievees the purpose that improve drilling rod vibration, improves drilling rod running accuracy, reduces temperature rise, thus
Preferably improve the straightness of deep hole machining, circularity, the geometric tolerances such as roughness and machining accuracy.
The utility model solves by the following technical programs:
A kind of deep hole machining intelligent drilling rod system with Tilting Pad block, including drilling rod, the oil transportation being connect with drilling rod
Device and the deep hole tools for being installed on drilling rod end are equipped between the drilling rod and finished work hole hole wall at deep hole tools end
For the continuous Varied clearance of cutting fluid flowing, the flowing cutting fluid in continuous Varied clearance forms the dynamic oil film pressure for clamping drilling rod
Power.
The continuous Varied clearance is wedge gap, be by be radially uniformly installed between drilling rod and workpiece hole it is several can
The tile fragment that inclines is formed；Tilting pad is in tile, and by head, rearwardly radially thickness is gradually increased, radial in flabellum, and
Wedge gap is formed between the hole wall of workpieces processing hole, cutting fluid is flowed into from wedge gap big end, gap small end flows out.
The radial angle of the tilting pad is adjustable, corresponded on drilling rod each tilting pad position be laid with it is several
Supported hole is separately installed with the executive module for realizing that tilting pad radial angle is adjusted in each supported hole；The executive module packet
The cored screw sleeve being radially threadedly coupled with the supported hole on drilling rod is included, support joint is installed in cored screw sleeve,
Support joint can be in the inside of the radially movable face contact support tilting pad of cored screw sleeve.
The support joint is connected with the control system for realizing support joint motions, and control system includes piezoelectric ceramics, shape
Shape memory alloys, switch selection circuit component, control computer, marmem control system and piezoelectric ceramics control electricity
Source, piezoelectric ceramics and marmem are installed in cored screw sleeve, and piezoelectric ceramics is set to support joint and shape memory
Between alloy, the output end connection marmem control system of computer and the input of piezoelectric ceramics control power supply are controlled
End, marmem control system connect shape by switch selection circuit component with the output end of piezoelectric ceramics control power supply
Memorial alloy.The relative theory of marmem control system may refer to the article shape note that Huazhong University of Science and Technology guilt holds woods
Recall the research and application of alloy.The connection line of switch selection circuit component is imbedded in drilling rod inner wall, axial from interior along drilling rod
Wall is drawn.
The input terminal of control computer is circumscribed with measure loop, and control loop includes vertical vibrating sensor, horizontal vibration
The circumferential direction opposite peace in 90 ° of sensor, flowmeter and pressure gauge, vertical vibrating sensor and horizontal vibration sensor in drilling rod
Dress；Flowmeter and pressure gauge are connected and installed at the oil inlet of oil delivering unit.
Support joint be it is rod-shaped, the insertion of bar-like support joint is socketed in cored screw sleeve and can opposite cored screw set
The contact support end of cylinder movement, bar-like support joint is ball shape.
The tilting pad is circumferentially laid with four pieces around drilling rod.
That is the drilling rod tilting pad, measure loop, control system, executive module and the BTA drill bit that include angle adjustable
Composition；Wherein Tilting Pad block intelligent drilling rod system is made of Tilting Pad block, support component and the drilling rod of adjustable angle；
In measure loop, high-precision pressure sensor is mounted near the tilting pad of angle adjustable, and output end and control are counted
The connection of calculation machine；Control system includes control computer, piezoelectric ceramics control power supply, marmem control assembly and switch choosing
Select circuit unit；Executive module is made of support joint, piezoelectric ceramics, parallels, marmem and cored screw sleeve.It should
Drilling rod can be by the tilt angle of control computer regulated tilting pad, so as to adjust the work of Tilting Pad block drilling rod in real time
Make state, realizes the purpose of the working condition of real-time control drilling rod.The utility model has the effect that compared with the existing technology
1) the Tilting Pad block jackrod structure used can effectively reduce vibration and temperature, applied to broader work
Make under situation；
2) working condition of the tilting pad intelligent drilling rod of the utility model can stretching by control system executive module
Contracting is to realize the wedge gap between tilting pad and machined hole wall；
3) the utility model is equipped with high-precision vibrating sensor on tilting pad, can carry out to the working condition of drilling rod
Implement monitoring, its working condition is adjusted correspondingly if job requirement is not achieved.
4) intelligent drilling rod have negative-feedback, can according to the change of operating condition change tile fragment inclination angle, and then adjust tile fragment with
Gap between machined hole wall improves the running accuracy and stability of drilling rod to reduce vibration and temperature rise.
Detailed description of the invention
Fig. 1 is tilting pad structural schematic diagram；
Fig. 2 is each part connection schematic diagram；
Fig. 3 is deep hole machining intelligent drilling rod system schematic；
In figure: tilting pad 1, drilling rod 2, workpiece hole 3, support joint 4, piezoelectric ceramics 5, parallels 6, marmem 7,
Cored screw sleeve 8, switch selection circuit component 9, vertical vibrating sensor 10, horizontal vibration sensor 11, control computer
12, marmem control system 13, piezoelectric ceramics control power supply 14, deep hole tools 15, sealing ring 16, bearing 17, oil transportation
Device 18, flowmeter 19, pressure gauge 20.
Specific embodiment
In conjunction with attached drawing, specific embodiment of the present utility model is described further:
Deep hole machining intelligent drilling rod system with Tilting Pad block as shown in Figure 3, the diameter including angle adjustable
To tilting pad, executive module, detection system, control system and BTA deep hole tools；The Tilting Pad of the angle adjustable
Block 1, totally 4 groups, every group of tile fragment realizes that inclination is adjusted by uniformly distributed three executive modules thereon.It is bored in process
Bar 2 is evenly arranged with the adjustable tilting pad 1 of four groups of radial angles inside workpiece hole 3 between drilling rod 2 and workpiece hole 3；It bores
The inside of each radially adjustable tilting pad 1 is corresponded on bar 2, uniformly there are three supported hole, corresponding peace in each supported hole
Equipped with executive module.The executive module is from top to bottom successively equipped with support joint 4, piezoelectric ceramics 5, parallels 6, shape memory
Alloy 7 and cored screw sleeve 8.The executive module is by the radially adjustable tilting pad 1 of support 4 face of joint
Portion.The switch selection circuit component 9, connection line are imbedded in 2 inner wall of drilling rod, draw along drilling rod 2 is axial from inner wall.
The output end of the marmem control system 13 connects marmem 7 by switch selection circuit component 9；It is described
The output end that piezoelectric ceramics controls power supply 14 connects piezoelectric ceramics 5 by switch selection circuit component 9.Cored screw sleeve 8
Periphery is threadedly coupled with the supported hole；The input pressure of the pressure gauge 19 and throttling 20 co- controlling oil delivering units 18 of meter.
The measure loop includes vertical vibrating sensor and horizontal vibration sensor, and is mounted on drilling rod radial direction in 90 degree
And axial direction is in together in same circumferential plane.The control system includes computer 12, memorial alloy control system 13, pressure
Electroceramics controls power supply 14 and switch selection circuit component 9.The cutter is BTA cutter etc..Vertical vibrating sensor 10 and water
The input terminal of the output end connection control computer 12 of flat vibrating sensor 11；Control the output end connection shape note of computer 12
Recall the input terminal of alloy control system 13 and piezoelectric ceramics control power supply 14, marmem control system 13 and piezoelectric ceramics
The output end for controlling power supply 14 connects executive module by switch selection circuit component 9.
1 structure of tilting pad is in tile, and from head, rearwardly circumferentially width is gradually increased, radial in flabellum, with
Finished work forms wedge gap between hole, there is 4 chip architectures, is connected by revolute pair with support joint 4, every tilting bush
Block is uniformly distributed 3 tapped through holes in circumferencial direction, is respectively arranged with executive module in each threaded hole；The drilling rod passes through flow controller
20, with flowmeter 19, controls tilting pad and process the cutting fluid for having continuous abundance between aperture, the variation according to outer load is automatic
Adjust the pressure in each oil pocket.Relative motion in a clockwise direction between drilling rod 2 and machined hole wall guarantees cutting fluid from gap
Big end flows into the outflow of gap small end.Multiple dynamic pressure oil films are formed between tilting pad and machined hole wall.
Wedge by adjusting the tilt angle between tilting pad 1 and drilling rod 2 in real time, between adjustment cutting fluid inlet and outlet
Shape gap, and then the oil film pressure of cutting fluid is adjusted, by the adjustment of 4 oil film pressures, similar lathe real-time, tunable section
Chuck controls brill vibration of bar, improves the running accuracy and stability of drilling rod.
If external environment changes, the moving situation of drilling rod can be acquired by horizontal and vertical sensor, control
Computer 12 can analyze the vibration signal of the drilling rod collected, but when state is unsatisfactory for job requirement, and control calculates
Chance issues instructions to executive module, by the tilt angle of the radially adjustable tile fragment of flexible change of executive module, to change
Become the state of drilling rod.
Referring to Fig. 1, the inside of each radially adjustable tilting pad 1 is corresponded on drilling rod 2, is designed with 3 supported holes, 3
A supported hole is arranged with the axisymmetrical of the adjustable tilting pad 1 of corresponding angle；The corresponding independent execution of each supported hole
Component, control computer 12 can control the good switch selection circuit pair of power supply 14 by memorial alloy control system 13 and piezoelectric ceramics
Executive module is implemented to control respectively.
The course of work of the utility model:
When external condition changes, vertical vibrating sensor 10 and horizontal vibration sensor 11 can acquire drilling rod 2
Vibration signal simultaneously passes to control calculating with regard to 12, controls computer 12 according to obtained vibration signal, analyzes current drilling rod
Operating status will get finger to marmem control system 13 and piezoelectric ceramics control power supply 14 if not reaching requirement
It enables, marmem 7 and piezoelectric ceramics 5 in support unit is controlled by switch selection circuit component 9, dilatation occurs, into
And control the stroke in joint 4.The tilt angle for changing diameter angle tilting pad, improves the operating status of drilling rod, until satisfaction
Until.
Claims (7)
1. a kind of deep hole machining intelligent drilling rod system with Tilting Pad block is connect including drilling rod (2), with drilling rod (2)
Oil delivering unit (18) and the deep hole tools (15) for being installed on drilling rod (2) end, it is characterised in that: close to deep hole tools (15) end
The continuous Varied clearance flowed for cutting fluid, the flowing in continuous Varied clearance are equipped between drilling rod (2) and finished work hole hole wall
Cutting fluid forms the dynamic oil film pressure for clamping drilling rod (2).
2. the deep hole machining intelligent drilling rod system according to claim 1 with Tilting Pad block, it is characterised in that: institute
Stating continuous Varied clearance is wedge gap, is several tilting bush by being radially uniformly installed between drilling rod (2) and workpiece hole (3)
Block (1) formation；Tilting pad (1) is in tile, and from head, rearwardly radially thickness is gradually increased, radial in flabellum, with
Wedge gap is formed between the hole wall of finished work hole, cutting fluid is flowed into from wedge gap big end, gap small end flows out.
3. the deep hole machining intelligent drilling rod system according to claim 2 with Tilting Pad block, it is characterised in that: institute
The radial angle for stating tilting pad (1) is adjustable, corresponded on drilling rod (2) each tilting pad (1) position be laid with it is several
Supported hole is separately installed with the executive module for realizing that tilting pad (1) radial angle is adjusted in each supported hole；The executive module
Including the cored screw sleeve (8) being radially threadedly coupled with the supported hole on drilling rod, branch is installed in cored screw sleeve (8)
It supports joint (4), support joint (4) can be in the interior of radially movable face contact support tilting pad (1) of cored screw sleeve (8)
Side.
4. the deep hole machining intelligent drilling rod system according to claim 3 with Tilting Pad block, it is characterised in that: institute
It states support joint (4) and is connected with the control system for realizing support joint (4) movement, control system includes piezoelectric ceramics (5), shape
Memorial alloy (7), switch selection circuit component (9), control computer (12), marmem control system (13) and piezoelectricity
Ceramics control power supply (14), piezoelectric ceramics (5) and marmem (7) are installed in cored screw sleeve (8), piezoelectric ceramics
(5) it is set between support joint (4) and marmem (7), the output end connection shape memory of control computer (12) closes
The input terminal of golden control system (13) and piezoelectric ceramics control power supply (14), marmem control system (13) and piezoelectricity pottery
The output end that porcelain controls power supply (14) passes through switch selection circuit component (9) connection marmem (7).
5. the deep hole machining intelligent drilling rod system according to claim 4 with Tilting Pad block, it is characterised in that: control
The input terminal of computer (12) processed is circumscribed with measure loop, and control loop includes vertical vibrating sensor (10), horizontal vibration biography
Sensor (11), flowmeter (19) and pressure gauge (20), vertical vibrating sensor (10) and horizontal vibration sensor (11) are in drilling rod
(2) the opposite installation in 90 ° of circumferential direction；Flowmeter (19) and pressure gauge (20) are connected and installed at the oil inlet of oil delivering unit (18).
6. the deep hole machining intelligent drilling rod system according to claim 5 with Tilting Pad block, it is characterised in that: branch
Support joint (4) be it is rod-shaped, bar-like support joint (4) insertion is socketed in cored screw sleeve (8) and can opposite cored screw set
The contact support end of cylinder (8) movement, bar-like support joint (4) is ball shape.
7. the deep hole machining intelligent drilling rod system according to claim 6 with Tilting Pad block, it is characterised in that: institute
It states tilting pad (1) and is circumferentially laid with four pieces around drilling rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821239170.5U CN208696377U (en) | 2018-08-02 | 2018-08-02 | A kind of deep hole machining intelligent drilling rod system with Tilting Pad block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821239170.5U CN208696377U (en) | 2018-08-02 | 2018-08-02 | A kind of deep hole machining intelligent drilling rod system with Tilting Pad block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208696377U true CN208696377U (en) | 2019-04-05 |
Family
ID=65941389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821239170.5U Withdrawn - After Issue CN208696377U (en) | 2018-08-02 | 2018-08-02 | A kind of deep hole machining intelligent drilling rod system with Tilting Pad block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208696377U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788238A (en) * | 2018-08-02 | 2018-11-13 | 中北大学 | A kind of deep hole machining intelligent drilling rod system with Tilting Pad block |
| CN116237818A (en) * | 2022-12-29 | 2023-06-09 | 广东中海万泰技术有限公司 | Offset measuring method for deep hole machining |
-
2018
- 2018-08-02 CN CN201821239170.5U patent/CN208696377U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788238A (en) * | 2018-08-02 | 2018-11-13 | 中北大学 | A kind of deep hole machining intelligent drilling rod system with Tilting Pad block |
| CN108788238B (en) * | 2018-08-02 | 2023-09-15 | 中北大学 | Deep hole processing intelligent drill rod system with radial tilting pad |
| CN116237818A (en) * | 2022-12-29 | 2023-06-09 | 广东中海万泰技术有限公司 | Offset measuring method for deep hole machining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190405 Effective date of abandoning: 20230915 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190405 Effective date of abandoning: 20230915 |