CN206253895U - A kind of drill steel support device - Google Patents
A kind of drill steel support device Download PDFInfo
- Publication number
- CN206253895U CN206253895U CN201621360005.6U CN201621360005U CN206253895U CN 206253895 U CN206253895 U CN 206253895U CN 201621360005 U CN201621360005 U CN 201621360005U CN 206253895 U CN206253895 U CN 206253895U
- Authority
- CN
- China
- Prior art keywords
- knife bar
- support component
- support
- mobile
- cutter head
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model belongs to machine-building Deep-Hole Drilling Technology field, and in particular to a kind of drill steel support device.In processing, workpiece 1 does rotation at a high speed, knife bar 4 does low speed rotation, and cutter does feed motion simultaneously, the rotating speed of knife bar 4 is controlled during processing, moving support component 5, support adapter sleeve 6, nut portion 9 due to the guide effect of guide rail 8 can do feed motion with knife bar 4, so that the feed speed of knife bar 4 is the twice of the feed speed for moving support component 5, so mobile support component 5 remains at the axial length middle part of processed deep hole, makes the axis of knife bar 4 keep overlapping with the axis of processed deep hole.Fixed support component 3 is located between cutter head 2 and mobile support component 5, and fixed support component 3 makes the center of cutter head 2 be maintained at deep hole axial location.
Description
Technical field
The utility model belongs to machine-building hole machined technical field, and in particular to a kind of drill steel support device.
Background technology
Deep hole machining major way has：First, cutter rotation, workpiece feeding；Second, workpiece rotation, tool feeding；The
Three, cutter and workpiece all rotate, while cutter opposite piece feeds.Drill bit is broadly divided into by chip removal mode：Bta deep hole drilling
And outside chip removal deep hole drill.Deep hole machining general principle sees Wang Jun《Modern Deep-Hole Drilling Technology》With Wang Shiqing chief editors'《Deep hole
Process technology》.
It is difficult to observe working position and cutter situation during deep hole machining, knife bar length is big, is susceptible to deflection, causes
Workpiece is scrapped, therefore deep hole machining is the difficult point of machining.Prevent and correct drill bit, boring cutter and knife bar deflection, it is ensured that processing
Precision, is the key subjects for needing to solve, and is also remote unsolved worldwide technological puzzle.
Existing deep hole working machine, existing deep hole machining BTA cutters are one of important technical backgrounds of the utility model.
Presently used bta deep hole drilling drilling rod outside is cylinder.Deep hole tools and knife bar application are directed in big country etc.
Multinomial patent, including a kind of drilling rod of rectifying a deviation, self correction deep hole processing system, it is a kind of with raised cutting element, it is a kind of tiltedly
The rearmounted deep hole processing cutter of face structure, self correction deep hole processing cutter system, achieve good effect, but technology without only
Border, can also continue to carry out new research.
The main cause of cutter deflection is caused during deep hole machining at 2 points：First, due to the inequality of machined material
It is even cutter head deflection is caused deep hole machining deflection；Second, because the length of knife bar is more long along with the work of tool feeding axial force
With causing knife bar to bend, deep hole deflection is caused.
The content of the invention
The purpose of this utility model：Easily deviate ideal position this technical barrier for cutter during deep hole machining,
Propose associated solutions, prevent the deflection of cutter, make cutter as far as possible in correct position, improve deep hole machining yield rate and
Machining accuracy.
The utility model has used for reference the design principle of ball-screw.Ball-screw is widely used in the feeding transmission dress of lathe
In putting, a kind of drill steel support device rotarily drives axial movement of the support connection device top nut along guide rail, two using knife bar
Person has similarity, and Rao Zhengang and Wang Yongwei have write works《Ball screw assembly, and self-locking device》, nineteen ninety is in national defence work
Industry publishing house publishes, middle figure classification number：TH132, page totally 252 of the book, the superstar network address of the book is：
http：//www.sslibrary.com/book/cardCnFenlei=TH132＆ssid=10191539＆d=
C98d0739095a1d08f3a1f37a7b939dd3＆dxid=000000244614＆isFro mBW=false＆isjgptjs
=false
The works is in the propositions of page 25：Rotary motion can be changed into linear motion by lead screw transmission, and lead screw transmission can be passed
Pass energy or power, it is also possible to for transmitting the mutual alignment of motion or adjustment part, therefore, in lathe, crane gear, forging and stamping
Lead screw pair is all refer in the transmission mechanism such as machinery, measuring instrument, ship, aircraft and cannon, rocket projector.Ball-screw
Sliding friction is instead of relative to lead screw rolling friction to have the characteristics that：
(1) friction loss is small, transmission efficiency：Its transmission efficiency can reach 90%-96%.
(2) the small, long lifespan of abrasion：The abrasion very little of rolling friction, with good wearability, long working life.
(3) axial rigidity is just high：Drive gap can be completely eliminated, the flexibility without influenceing guide screw movement.
(4) frictional resistance is small, stable movement：Thus sensitivity is high, and motion is relatively steady, without vibration during startup, during low speed without
Creeping phenomenon.
The utility model adopts the following technical scheme that realization：
A kind of drill steel support device, as shown in Figure 1, it is characterised in that including cutter head 2, fixed support component 3, knife bar 4, shifting
Dynamic support component 5, support adapter sleeve 6, nut portion 9, cutter head 2 are located in workpiece 1, and cutter head 2 is fixedly connected with knife bar 4, fixed
There is fixed support in support component 5, there is mobile support in mobile support component, fixed support component 3 is fixedly connected with the bar of knife 4,
Fixed support and mobile support are contacted with inner hole of workpiece wall.There are through hole, oil inlet 10 of the cutting fluid from oil delivering unit 7 inside knife bar 4
It is pressed into, the gap between support adapter sleeve 6 and workpiece 1 flows to cutter head, and cutting fluid flows through the movement of mobile support component 5
Gap between support and the fixed support of fixed support component 3, then carries through hole stream of the chip from knife bar 4 in cutter head position
Go out while playing a part of to lubricate and lowering the temperature.
A kind of described drill steel support device, as shown in Figure 1, it is characterised in that fixed support component 3 is located at cutter head 2 and moves
Between dynamic support component 5.Deep hole machining causes the one of the main reasons of deflection precisely due to the quality of material, density, hardness
Uneven to cause the gib block of cutter head 2 to shift, making the force unbalance of cutting edge causes cutter head 2 to glance off, fixed support
Component 3 can make up the shortcoming that gib block easily causes deflection, and when being glanced off positioned at cutter head 2, fixed support component 3 can be with
Carrying support force makes the center of cutter head 2 be maintained at deep hole axial location.
A kind of described drill steel support device, as shown in Figure 1, it is characterised in that mobile support component 5, support adapter sleeve 6,
Nut portion 9 is enclosed within knife bar 4 can be added relative to knife bar rotation and axial displacement, the half length away from cutter head 2 of knife bar 4
Work has the ball engagement composition ball screw arrangement of screw thread, screw thread and nut portion 9 and centre；Knife bar 4 close to cutter head 2
Half length does not have screw thread, and mobile support component, support adapter sleeve, nut portion and knife bar are in close contact and play a part of sealing
Cutting fluid is set not flowed out between knife bar 4 and support adapter sleeve 6；Mobile support component, support adapter sleeve, nut portion and knife
Bar is fitted close, and increased the intensity of knife bar, increased the bending resistance of knife bar 4.As shown in Fig. 2 being moved when starting processing
Support component and fixed support component contact.As shown in figure 3, moving the middle part that support component reaches knife bar, nut during process finishing
Part is located at the right-hand member of knife bar.
A kind of described drill steel support device, as shown in Figure 1, it is characterised in that oil delivering unit 7 is fixed on frame, guide rail 8 is pacified
Loaded on oil delivering unit 7, guide rail makes to move support component, branch through the pilot hole set in nut portion 9, guide rail through pilot hole
Support adapter sleeve, nut portion can only axially move along guide rail 8.In processing, workpiece 1 does rotation at a high speed, and knife bar 4 does low speed rotation
Turn knife bar simultaneously and do feed motion, the rotating speed of knife bar 4 is controlled during processing, make to move support component, support adapter sleeve, nut portion
Have and knife bar feed speed V1Speed V in opposite direction2, V2Size be V1Half, the superposition of two speed makes the phase of knife bar 4
It is to move the twice relative to ground feed speed of support component, support adapter sleeve, nut portion for ground feed speed,
Cutter head is pointed in direction by knife bar, and so mobile support component 5 remains at the middle part of processed deep hole axial length.Because deep
It is because the effect knife bar 4 of axial feed power is susceptible to bending, in knife bar 4 that hole machined causes the one of the main reasons of deflection
Point midway degree of crook is maximum, and mobile support component 5 is always positioned at being processed deep hole axial length during deep hole machining
Middle part, make the axis of knife bar 4 keep overlapping with the axis of processed deep hole.
Described a kind of drill steel support device, it is characterised in that fixed support and mobile support top end are fitted with ball,
Ball is embedded in the inside of support component, and ball can be rotated freely.Ball is contacted and with processed inner walls of deep holes to roll
Friction, oil film can be produced in process because having between cutting fluid ball and processed inner walls of deep holes, form elastic fluid
Dynamic lubrication, reduces frictional resistance, may also operate as radiating, reduces contact stress, absorb vibrations, prevent the effect such as corrosion,
Referring specifically to Qiu Xuanhuai chief editors'《Machine Design》Fourth edition, Higher Education Publishing House, page 396.As shown in figure 4, fixed support
It it is three or more than three with the number of mobile support.
In sum, the utility model has following novelty：
1. a kind of drill steel support device, including cutter head (2), fixed support component (3), knife bar (4), mobile support component
(5), support adapter sleeve (6), nut portion (9), it is characterised in that knife bar is located in workpiece (1), and cutter head is fixedly connected with knife bar,
Fixed support component (3) has a fixed support above, and mobile support component (5) has a mobile support above, fixed support component (3) and
Knife bar is fixedly connected, and fixed support and mobile support are contacted with inner hole of workpiece hole wall, there is through hole inside knife bar；Cutting fluid is from oil transportation
The oil inlet (10) of device (7) is pressed into, and the gap between support adapter sleeve and workpiece flows to cutter head, and cutting fluid flows through movement
The gap at support component (5) place and the gap at fixed support component (3) place, then carry chip from the logical of knife bar in cutter head position
Flow out in hole；Mobile support component (5), support adapter sleeve (6), nut portion (9) are enclosed within knife bar (4), and knife bar (4) front end does not have
There is screw thread screw thread, knife bar rear end, and mobile support component, support adapter sleeve, nut portion can be relative to knife bar rotation and axial directions
Displacement, nut portion (9) can be relatively moved with guide rail (8)；In processing, workpiece (1) does rotation at a high speed, and knife bar (4) does low speed
Feed motion is done in rotation simultaneously, and mobile support component, support adapter sleeve, nut portion do feed motion with knife bar；Guide rail
(8) it is installed on oil delivering unit (7), through the pilot hole of setting in nut portion (9), the feed speed of knife bar is mobile branch to guide rail
The twice of support component (5) feed speed, mobile support component (5) is always positioned at being processed deep hole axial direction during deep hole machining
The middle part of length.
2. a kind of drill steel support device, fixes support component (3) between cutter head (2) and mobile support component (5), Gu
The number of fixed support and mobile support can be three or more than three, and rolling is set in fixed support component and mobile support component
Kinetoplast, rolling element is ball or cylinder.
The beneficial effects of the utility model：
Firstth, workpiece 1 does rotation at a high speed in processing, and knife bar 4 does low speed rotation, and knife bar does feed motion simultaneously, during processing
The rotating speed of knife bar 4 is controlled, because guide effect movement support component 5, support adapter sleeve 6, the meeting of nut portion 9 of guide rail 8 are with knife
Bar 4 does feed motion together so that the feed speed of knife bar 4 is the twice of the feed speed for moving support component 5, so mobile
Support component 5 remains at the middle part of processed deep hole axial length.Because deep hole machining cause deflection main cause it
One is, the movement maximum in the point midway degree of crook of knife bar 4 because the effect knife bar 4 of axial feed power is susceptible to bending
Support component 5 is always positioned at being processed in the middle part of deep hole axial length during deep hole machining, makes the axis of knife bar 4 and is processed
The axis of deep hole keeps overlapping.
Secondth, fixed support component 3 is located between cutter head 2 and mobile support component 5, and deep hole machining causes the master of deflection
It is, because the quality of material, density, the uneven of hardness cause the gib block of cutter head 2 to shift, to make cutting edge to want one of reason
Force unbalance cause cutter head 2 to glance off, fixed support component 3 can make up the shortcoming that gib block easily causes deflection,
When the gib block on cutter head 2 is glanced off, fixed support component 3 can make the center of cutter head 2 be maintained at deep hole axis
Position.
3rd, the half length processing away from cutter head 2 of knife bar 4 has screw thread, the rolling of screw thread and nut portion 9 and centre
Pearl coordinates composition ball screw arrangement；The half length close to cutter head 2 of knife bar 4 does not have screw thread, and knife bar is connected with support and is locked
Close fit but can with relative motion, play a part of sealing so that cutting fluid will not from knife bar 4 and support adapter sleeve 6 between flow
Go out；Knife bar 4 is fitted close with support adapter sleeve 6, increased the intensity of knife bar, increased the bending resistance of knife bar 4.
Brief description of the drawings
Fig. 1 is a kind of drill steel support device general assembly drawing, and Fig. 2 starts Working position figure, Fig. 3 for a kind of drill steel support device
It is a kind of drill steel support device process finishing location drawing, Fig. 4 is mobile support component sectional view,.In figure：1- workpiece, 2- cutter heads,
3- fixation support components, 4- knife bars, 5- movement support components, 6- support adapter sleeves, 7- oil delivering units, 8- guide rails, 9- nut portions,
10- oil inlets.
Specific embodiment
The utility model implementation method is described further below in conjunction with accompanying drawing, specific embodiment is not new to this practicality
Type does any limitation.
Implementation method one：When using the utility model, fixed support component 3 and the mobile top of support component 5 are all installed
There is ball.
Implementation method two：When using the utility model, fixed support component 3 and the mobile top of support component 5 are all installed
There is cylinder.
Implementation method three：When using the utility model, the number that fixed support component 3 is supported with mobile support component 5
It can be three or more than three.
Claims (2)
1. a kind of drill steel support device, including cutter head (2), fixed support component (3), knife bar (4), mobile support component (5), branch
Support adapter sleeve (6), nut portion (9), it is characterised in that knife bar is located in workpiece (1), and cutter head is fixedly connected with knife bar, fixed branch
Support component (3) has fixed support above, and mobile support component (5) has mobile support above, and fixed support component (3) and knife bar are solid
Fixed connection, fixed support and mobile support are contacted with inner hole of workpiece hole wall, there is through hole inside knife bar；Cutting fluid is from oil delivering unit (7)
Oil inlet (10) be pressed into, along support adapter sleeve and workpiece between gap flow to cutter head, cutting fluid flows through mobile support
The gap at component (5) place and the gap at fixed support component (3) place, then carry through hole stream of the chip from knife bar in cutter head position
Go out；Mobile support component (5), support adapter sleeve (6), nut portion (9) are enclosed within knife bar (4), and knife bar (4) front end does not have spiral shell
There is screw thread line, knife bar rear end, and knife bar can rotate and axial position relative to mobile support component, support adapter sleeve, nut portion
Move, nut portion (9) can be relatively moved with guide rail (8)；In processing, workpiece (1) does rotation at a high speed, and knife bar (4) does low speed rotation
Turn to do feed motion simultaneously, mobile support component, support adapter sleeve, nut portion do feed motion with knife bar；Guide rail (8)
It is installed on oil delivering unit (7), through the pilot hole of setting in nut portion (9), the feed speed of knife bar is to move support to guide rail
The twice of component (5) feed speed, mobile support component (5) is always positioned at being processed deep hole axially length during deep hole machining
The middle part of degree.
2. a kind of drill steel support device according to claim 1, fixes support component (3) positioned at cutter head (2) and mobile branch
Between support component (5), the number of fixed support and mobile support can be three or more than three, fixed support component and movement
Rolling element is set in support component, and rolling element is ball or cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621360005.6U CN206253895U (en) | 2016-12-05 | 2016-12-05 | A kind of drill steel support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621360005.6U CN206253895U (en) | 2016-12-05 | 2016-12-05 | A kind of drill steel support device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206253895U true CN206253895U (en) | 2017-06-16 |
Family
ID=59028273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621360005.6U Withdrawn - After Issue CN206253895U (en) | 2016-12-05 | 2016-12-05 | A kind of drill steel support device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206253895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106514316A (en) * | 2016-12-05 | 2017-03-22 | 中北大学 | Drill rod supporting device |
-
2016
- 2016-12-05 CN CN201621360005.6U patent/CN206253895U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106514316A (en) * | 2016-12-05 | 2017-03-22 | 中北大学 | Drill rod supporting device |
| CN106514316B (en) * | 2016-12-05 | 2018-08-17 | 中北大学 | A kind of drill steel support device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170616 Effective date of abandoning: 20180817 |