CN204171396U - Self correction deep hole processing system - Google Patents
Self correction deep hole processing system Download PDFInfo
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- CN204171396U CN204171396U CN201420425232.7U CN201420425232U CN204171396U CN 204171396 U CN204171396 U CN 204171396U CN 201420425232 U CN201420425232 U CN 201420425232U CN 204171396 U CN204171396 U CN 204171396U
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Abstract
The utility model belongs to machine-building hole machined technical field, is specifically related to self correction deep hole processing system.The utility model adopts wedge shape and pyramidal structure, proposes according to Hydro-mechanics theory the technical scheme preventing and correct cutter deflection in deep hole machining process.Self correction deep hole processing system comprises workpiece, oil circuit part, tool parts, oil circuit part comprises oil piping system main body, chip-removal hole, tool parts comprises cutting edge, cutter hub, sphenoid, cone, cylinder, chip-removal hole is through cutter hub, sphenoid, cone, cylinder, and sphenoid has along the equally distributed wedge-shaped slot of its circumferencial direction.Tool parts and workpiece have relative rotary motion, form wedge-shaped oil film between two surfaces, produce dynamic pressure.The beneficial effects of the utility model: the making a concerted effort of multiple oil film wedge make cutter tend towards stability in correct position, improve deep hole machining precision.In addition, the liquid formed between cone and workpiece hole also has correction effect to tool parts because of its conical by its shape.
Description
Technical field
The utility model belongs to machine-building hole machined technical field, is specifically related to self correction deep hole processing system.
Background technology
Wang Jun has published " modern Deep-Hole Drilling Technology " book, and current deep hole machining equipment and this book of technological design Primary Reference, common cylinder hole machined also can use for reference content in book.Deep hole machining comprises drilling deep hole, boring deep hole, fraising and honing deep hole etc.On entity, machining hole is more, sometimes needs the bottom outlet of part to expand.Deep hole machining major way has: the first, and cutter rotates, workpiece feeding; The second, workpiece rotates, tool feeding.Drilling deep hole is most widely used, and drill bit is mainly divided into by chip removal mode: bta deep hole drilling and outside chip removal deep hole drill.
Be difficult in deep hole machining process observe working position and cutter situation, knife bar length is large, and easily deflection occurs, cause workpiece to scrap, therefore deep hole machining is the difficult point of machining.Prevent and correct drill bit, boring cutter and knife bar deflection, guaranteeing machining accuracy, being the key subjects needing to solve, is also unsolved worldwide technological puzzle far away.
Existing deep hole working machine, existing deep hole machining BTA cutter are one of important technical backgrounds of the utility model, cutting fluid enters deep hole lathe oil delivering unit cavity from oil pipe and oil-in, due to the restriction of oil delivering unit right end cap and tool bar sealing part, cutting fluid can only flow to cutting edge portion by the annular gap of workpiece between machining hole and knife bar, then chip is pushed chip-removal hole and final discharge in the other direction.
Bta deep hole drilling drilling rod outside used is at present cylinder.
Wander off to prevent cutter in deep hole machining process, usually cutter is made unsymmetric structure, both sides cutting force is non-vanishing with joint efforts, this makes a concerted effort to point to side, act on cutter, the guide pad of cutter and machining hole side hole wall are fitted tightly all the time, consequently with machining hole side hole wall location, thus avoids the deflection in hole.However, due to reasons such as material are uneven, the vibration in process, in many situations, still there is deflection in the hole processed, and makes product become waste product.In order to the deflection of reduce orifice, technical staff carried out multiple effort, but solved this technical barrier not yet very well.
Summary of the invention
The purpose of this utility model: easily depart from this technical barrier of ideal position for cutter in deep hole machining process, associated solutions is proposed, prevent and correct the deflection of cutter, make cutter be in tram as far as possible, improve hole machined yield rate and machining accuracy.
The utility model adopts following technical scheme to realize:
Self correction deep hole processing system, it is characterized in that comprising workpiece, oil circuit part, tool parts, described oil circuit part comprises oil piping system main body, chip-removal hole, described tool parts comprises cutting edge, cutter hub, sphenoid, chip-removal hole is through cutter hub, sphenoid, sphenoid has along the equally distributed wedge-shaped slot of its circumferencial direction, and the oil film between described wedge-shaped slot and workpiece hole inwall is wedge-type shape, and the structure of different wedge-shaped slot is identical along same circumferencial direction Changing Pattern; Wedge-shaped slot depth capacity is less than the half of the difference of sphenoid maximum outside diameter and chip-removal hole diameter, when workpiece does not have bottom outlet, described sphenoid is positioned at the rear portion of cutting edge, when workpiece has bottom outlet, described sphenoid can be positioned at front portion or the rear portion of cutting edge, or makes that cutting edge is anterior, there is sphenoid at rear portion.
Described wedge-shaped slot is two or more.
Described sphenoid there is logical oil groove.
Described logical oil groove depth capacity is less than the half of the difference of sphenoid maximum outside diameter and chip-removal hole diameter.
Described tool parts comprises cylinder, and chip-removal hole is through cylinder, and described cylinder can directly be connected with sphenoid, or is connected with sphenoid by cone.
Described sphenoid is between end cap and workpiece.
Described cone is between end cap and workpiece.
Described wedge-shaped slot has cutting fluid when machining hole.
Described cutting edge and cutter hub can be symmetrical structure or unsymmetric structure.
Sphenoid and workpiece machining hole or workpiece bottom outlet match, and form revolute.When machining hole matches for sphenoid and workpiece, sphenoid maximum gauge is less than workpiece machining hole diameter, and when sphenoid matches with workpiece bottom outlet, sphenoid maximum gauge is less than workpiece bottom diameter.
In Machine Design subject, bearing comprises rolling bearing and sliding bearing, sliding bearing comprises hydrodynamic bearing and hydrostatic bearing, part hydrodynamic bearing adopts wedge structure, such as M1050 centerless grinder main shaft support is on hydrodynamic bearing, this hydrodynamic bearing be " three slices watts;; formula structure, forms three wedge-shaped oil films between axle and bearing, and three wedge-shaped oil films support the main shaft of centerless grinders; wedge-shaped oil film has Self-centering Action; therefore make main shaft be in correct position, main shaft has very high precision, for grinding high-precision product provides safeguard.
The principle of wedge-shaped oil film is applied to deep hole machining by the utility model.In wedge-shaped oil film, the pressure of liquid is higher than the pressure of non-wedge part, in the utility model, wedge-shaped oil film supports deep hole processing cutter part, make deep hole tools be in correct position, the certralizing ability by oil film prevents and corrects the deflection that in deep hole machining process, cutter may occur.This point and existing machinery equipment different, for M1050 centerless grinder, in the device wedge-shaped oil film support to as if axle instead of cutter.It is emphasized that M1050 centerless grinder kind equipment in addition, its wedge structure relies on irrotational bearing to obtain, and wedge structure can be obtained by the tool parts rotated in the utility model.From another one angle, wedge structure for supporting the hydrodynamic bearing of axial workpiece is generally arranged in the larger-size part of revolute, this point can edit " Machine Design " the 8th edition see good expensive, the Ji Minggang of Pu, 301-302 page, this book is published by Higher Education Publishing House, and wedge structure is arranged on the less part of revolute size in the utility model.
Wedge structure oil film supports grinding machine spindle, and its bearing capacity and precision are existing in Machine Tool design works to be introduced in detail, and feasibility of the present utility model can refer to related content.
The utility model tool parts can have cone, also can not have cone.When there being cone, being conical by its shape by the liquid formed between cone and workpiece hole, also having correction effect to tool parts.Shen Xingquan edits " hydraulic drive and control " chapter 3 Section four " pressure flow characteristics auto in aperture and gap " and describes the flow and hydraulic lock phenomenon that flow through circular cone annular gap, lateral hydraulic force along cone makes eccentric throw reduce, back taper makes eccentric throw strengthen, the utility model make use of the principle along cone, the circular cone of tool parts is along cone, can prevent and correct the deflection of cutter.
The beneficial effects of the utility model: tool parts and workpiece have relative rotary motion, form wedge-shaped oil film between two surfaces, produce certain dynamic pressure, the making a concerted effort of multiple oil film wedge make cutter tend towards stability in correct position, improve the precision of deep hole machining.In addition, the liquid formed between cone and workpiece hole also has correction effect to tool parts because of its conical by its shape.
Accompanying drawing explanation
The self correction deep hole processing system schematic diagram of Fig. 1 band cone.
Fig. 2 sphenoid A-A cross-sectional view.
The self correction deep hole processing system schematic diagram of Fig. 3 not with cone.
In figure: 1-workpiece, 2-cutting edge, 3-cutter hub, 4-sphenoid, 5-cone, 6-drill bushing, 7-revolving meber, 8-cylinder, 9-end cap, 10-oil piping system base, 11-oil piping system main body, 12-chip-removal hole, 13-leads to oil groove, 14-wedge-shaped slot, 15-oil-in, 16-oil pipe.
Detailed description of the invention
Be described further the utility model embodiment below in conjunction with accompanying drawing, detailed description of the invention does not do any restriction to the utility model.
Self correction deep hole processing system, comprise workpiece 1, oil circuit part, tool parts, described oil circuit part comprises oil piping system main body 11, chip-removal hole 12, described tool parts comprises cutting edge 2, cutter hub 3, sphenoid 4, chip-removal hole 12 is through cutter hub 3, sphenoid 4, sphenoid 4 has along the equally distributed wedge-shaped slot 14 of its circumferencial direction, and the oil film between described wedge-shaped slot 14 and workpiece hole inwall is wedge-type shape, and the structure of different wedge-shaped slot is identical along same circumferencial direction Changing Pattern; Wedge-shaped slot 14 depth capacity is less than the half of the difference of sphenoid 4 maximum outside diameter and chip-removal hole 12 diameter, when workpiece does not have bottom outlet, described sphenoid 4 is positioned at the rear portion of cutting edge 2, when workpiece has bottom outlet, described sphenoid 4 can be positioned at front portion or the rear portion of cutting edge 2, or makes that cutting edge 2 is anterior, there is sphenoid 4 at rear portion.
Described wedge-shaped slot 14 is two or more.
Described sphenoid 4 there is logical oil groove 13.
Described logical oil groove 13 depth capacity is less than the half of the difference of sphenoid 4 maximum outside diameter and chip-removal hole 12 diameter.
Described tool parts comprises cylinder 8, and chip-removal hole 12 is through cylinder 8, and described cylinder 8 can directly be connected with sphenoid 4, or is connected with sphenoid 4 by cone 5.
Described sphenoid 4 is between end cap 9 and workpiece 1.
Described cone 5 is between end cap 9 and workpiece 1.
Described wedge-shaped slot 14 has cutting fluid when machining hole.
Described cutting edge 2 and cutter hub 3 can be symmetrical structure or unsymmetric structure.
Claims (9)
1. self correction deep hole processing system, is characterized in that comprising workpiece (1), oil circuit part, tool parts,
Described oil circuit part comprises oil piping system main body (11), chip-removal hole (12),
Described tool parts comprises cutting edge (2), cutter hub (3), sphenoid (4), chip-removal hole (12) is through cutter hub (3), sphenoid (4), sphenoid (4) has along the equally distributed wedge-shaped slot of its circumferencial direction (14), oil film between described wedge-shaped slot (14) and workpiece hole inwall is wedge-type shape, and the structure of different wedge-shaped slot is identical along same circumferencial direction Changing Pattern; Wedge-shaped slot (14) depth capacity is less than the half of the difference of sphenoid (4) maximum outside diameter and chip-removal hole (12) diameter, when workpiece does not have bottom outlet, described sphenoid (4) is positioned at the rear portion of cutting edge (2), when workpiece has bottom outlet, described sphenoid (4) can be positioned at front portion or the rear portion of cutting edge (2), or makes that cutting edge (2) is anterior, there is sphenoid (4) at rear portion.
2. self correction deep hole processing system according to claim 1, is characterized in that described wedge-shaped slot (14) is two or more.
3. self correction deep hole processing system according to claim 1, is characterized in that described sphenoid (4) has logical oil groove (13).
4. self correction deep hole processing system according to claim 3, is characterized in that described logical oil groove (13) depth capacity is less than the half of the difference of sphenoid (4) maximum outside diameter and chip-removal hole (12) diameter.
5. self correction deep hole processing system according to claim 1, it is characterized in that described tool parts comprises cylinder (8), chip-removal hole (12) is through cylinder (8), described cylinder (8) can directly be connected with sphenoid (4), or is connected with sphenoid (4) by cone (5).
6. self correction deep hole processing system according to claim 1, is characterized in that described sphenoid (4) is positioned between end cap (9) and workpiece (1).
7. self correction deep hole processing system according to claim 5, is characterized in that described cone (5) is positioned between end cap (9) and workpiece (1).
8. self correction deep hole processing system according to claim 1, is characterized in that described wedge-shaped slot (14) has cutting fluid when machining hole.
9. self correction deep hole processing system according to claim 1, is characterized in that described cutting edge (2) and cutter hub (3) can be symmetrical structure or unsymmetric structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420425232.7U CN204171396U (en) | 2014-07-24 | 2014-07-24 | Self correction deep hole processing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420425232.7U CN204171396U (en) | 2014-07-24 | 2014-07-24 | Self correction deep hole processing system |
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| CN204171396U true CN204171396U (en) | 2015-02-25 |
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| CN201420425232.7U Active CN204171396U (en) | 2014-07-24 | 2014-07-24 | Self correction deep hole processing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104162696A (en) * | 2014-07-24 | 2014-11-26 | 中北大学 | Self-correcting deep hole machining system |
| CN114054797A (en) * | 2021-12-13 | 2022-02-18 | 重庆臻宝实业有限公司 | Drilling device for micro-holes |
-
2014
- 2014-07-24 CN CN201420425232.7U patent/CN204171396U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104162696A (en) * | 2014-07-24 | 2014-11-26 | 中北大学 | Self-correcting deep hole machining system |
| CN104162696B (en) * | 2014-07-24 | 2017-02-08 | 中北大学 | Self-correcting deep hole machining system |
| CN114054797A (en) * | 2021-12-13 | 2022-02-18 | 重庆臻宝实业有限公司 | Drilling device for micro-holes |
| CN114054797B (en) * | 2021-12-13 | 2022-12-13 | 重庆臻宝实业有限公司 | Drilling device for micro-holes |
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