CN204818204U - Cutting element with it is protruding - Google Patents
Cutting element with it is protruding Download PDFInfo
- Publication number
- CN204818204U CN204818204U CN201520116320.3U CN201520116320U CN204818204U CN 204818204 U CN204818204 U CN 204818204U CN 201520116320 U CN201520116320 U CN 201520116320U CN 204818204 U CN204818204 U CN 204818204U
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- bossing
- cutting element
- adapter sleeve
- shaft portion
- cutting tip
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Abstract
The utility model belongs to the technical field of machinery trade BTA, in particular to cutting element with it is protruding solves current BTA in -process because of the problem that cutting element is thin long, the little emergence of rigidity is skew. It includes cutting tip, cutter arbor part, bulge, adapter sleeve. The bulge profile is circle or oval, and has processed between the hole and to form by the clearance that diminishes greatly then change from small to big again, and bulge can be located on the adapter sleeve or cutting tip or cutter arbor part. The beneficial effect of the utility model: with the help of the fluidic dynamics, make BTA cutting element keep in the exact position, guarantee deep hole processingquality, improve deep hole straightness accuracy and the relative design standard's of deep hole the depth of parallelism, perpendicularity, the axiality.
Description
Technical field
The utility model belongs to machinery industry Deep-Hole Drilling Technology field, is specifically related to a kind of cutting element with projection.
Background technology
Deep hole machining comprises boring, reaming, bore hole etc., is the machining operation that difficulty is larger, and in process, cutting element and the inconvenience of cutting position are observed.Because the degree of depth in hole is large, comparatively speaking, cutting element system seems thin and grows, and rigidity is little, easily sends out into deflection, causes the quality problems of workpiece.Making cutting element stablize for this reason, preventing it from departing from tram for ensureing that deep hole machining quality is extremely important.
In deep hole machining process, usually in circular knife bar (drilling rod) and the annular gap between machining hole, input the fluid with certain pressure, fluid flows into cutting region after flowing through annular gap, then flows out from the hole at drilling rod center, and liquid takes away iron filings and heat while flowing out.
Shaft portion under normal circumstances in cutting element is cylindrical.
Summary of the invention
The purpose of this utility model: prevent deep-hole boring instrument from wandering off, makes it be stable at correct position, improves yield rate and machining accuracy.
The utility model adopts following technical scheme to realize:
With a cutting element for projection, comprise cutting tip, shaft portion, it is characterized in that, compared with common hole machined cutting element, add bossing, the profile of bossing can be circle or oval.
Under normal circumstances, in process, cutting tip, shaft portion, bossing are positioned at the deep hole hole processed.Fluid flows through the outside of this cutting element, flows to and cuts position, and position is cut in cooling, and flows out with the hole of iron filings along cutting element inside.In process, theoretically, the center line of cutting element overlaps with the center line of institute machining hole.Shaft portion in prior art in cutting element is cylindrical, and the rear portion of cutting tip is also cylindrical, and gap that is cylindrical and that formed between machining hole is annular gap, and theoretically, gap length is equal everywhere.The utility model is with bossing, and bossing can be positioned on shaft portion, or the rear portion of cutting tip, and bossing and the gap formed between machining hole are not annular gaps, from large to small, then change from small to big again in its gap.In deep hole machining process, between cutting element and workpiece, there is relative motion, be full of liquid between the two.Therefore liquid is also driven, and moves in gap.To form dynamic pressure oil film or dynamic pressure oil reservoir when liquid flows through gap from big to small, the fluid pressure of the corresponding part in gap of convergence will increase, and produce an active force to cutting element.Bossing and processed between endoporus and form two or more gaps of restraining, each convergence gap all will produce an active force to cutting element, when the quantity and position distribution that restrain gap are suitable, fluid pressure acting in conjunction in each convergence gap, in cutting element, clamps a cylindrical component just as the scroll chuck of lathe or chuck.After scroll chuck or chuck clamp cylindrical component, namely part is in stable state, even if the power of being interfered, is usually also not easy to depart from correct position.In like manner, the cutting element with bulge-structure is also not easy to depart from correct position.
Bossing described in the utility model can be positioned at the rear portion of cutting tip, also can be positioned at the front portion of shaft portion, and machine-building unit can also manufacture an adapter sleeve, and with bossing on it, adapter sleeve connects cutting tip and shaft portion.In the process in hole, when cutting element opposite piece rotates, liquid stream crosses bossing and the convergence gap of workpiece between machining hole, produces active force, plays a role, make cutting tip and shaft portion be not easy deflection.
Often have several knife bars in deep hole machining process, shaft portion is interconnected, thus can deep hole processing, and knife bar rigidity is little in this case, is easily out of shape, and affects the crudy in hole.In order to prevent shaft portion to be out of shape, the adapter sleeve in the utility model can be installed between two shaft portion, namely by adapter sleeve, two shaft portion be coupled together.Adapter sleeve has bossing, and the active force of bossing and the liquid between machining hole makes bossing self-centering, is stable at accurate location, thus, can reduce the flexural deformation of the sagging of shaft portion and other form, reduce orifice mismachining tolerance.
The full-size of bossing should be less than the size in hole.The protruding quantity of bossing can be 2 or 3 or be greater than 3.When protruding quantity is 1, the orientation that bossing is placed should be noted, the hydraulic coupling produced by this bossing, preferably points to gib block (also known as the back-up block) position, place of deep hole tools, prevents because the existence of bossing destroys deep hole machining self-steering function.When the profile of bossing is oval, ellipse can have multiple with the correlation of the circle of cutting element column part: oval and round tangent, oval and round crossing, ellipse comprises circle etc.
The utility model relates to multiple concrete technical scheme, is described below respectively:
1. with a cutting element for projection, comprise cutting tip, shaft portion, bossing, it is characterized in that: the full-size of bossing is less than the size of workpiece machining hole, bossing with process endoporus hole wall and form the gap of restraining.
2. the cutting element with projection, comprise cutting tip, shaft portion, bossing, adapter sleeve, it is characterized in that: the full-size of described bossing is less than the size of workpiece machining hole, bossing with process endoporus hole wall and form the gap of restraining, adapter sleeve there is bossing, bossing and adapter sleeve are made into one, become a part, and adapter sleeve connects cutting tip and shaft portion.
3. the cutting element with projection, comprise cutting tip, shaft portion, bossing, adapter sleeve, it is characterized in that: the full-size of described bossing is less than the size of workpiece machining hole, bossing with process endoporus hole wall and form the gap of restraining, adapter sleeve there is bossing, bossing and adapter sleeve are made into one, and become a part, adapter sleeve connects two shaft portion.
4. the cutting element with projection, comprise cutting tip, shaft portion, bossing, adapter sleeve, it is characterized in that: the full-size of described bossing is less than the size of workpiece machining hole, bossing with process endoporus hole wall and form the gap of restraining, adapter sleeve has bossing, and bossing and adapter sleeve are made into integrally, become a part, adapter sleeve connects cutting tip and shaft portion, and meanwhile, adapter sleeve connects two shaft portion.
5. with a cutting element for projection, as required, described bossing and cutting tip are made into one, become a part.
6. with a cutting element for projection, as required, described bossing and shaft portion are made into one, become a part.
7. with a cutting element for projection, as required, described bossing and cutting tip, shaft portion are made into one, become a part.
8. with a cutting element for projection, as required, the outline line of bossing is round, oval.
The beneficial effects of the utility model: make deep hole machining cutting element be subject to the effect of fluid power, be held in correct position, prevent because the reason such as vibration, uneven, the cutting element own wt of cutting force makes cutting element depart from.The utility model will improve the depth of parallelism, the perpendicularity of deep hole linear degree and the relative design basis of deep hole, axiality.
Accompanying drawing explanation
Fig. 1 is a kind of schematic diagram of the cutting element with projection.
Fig. 2 is bossing and endoporus relation schematic diagram.
Fig. 3 is that bossing and cutting tip make all-in-one-piece schematic diagram.
Fig. 4 is that bossing and shaft portion make all-in-one-piece schematic diagram.
Fig. 5 is that bossing and adapter sleeve make all-in-one-piece schematic diagram.
Fig. 6 is the schematic diagram of bossing structure one.
Fig. 7 is the schematic diagram of bossing structure two.
Fig. 8 is the schematic diagram of bossing structure three.
Fig. 9 is the schematic diagram of bossing structure four.
Figure 10 is the schematic diagram of bossing structure five.
Figure 11 is the schematic diagram of bossing structure six.
Figure 12 is the schematic diagram that adapter sleeve connects two shaft portion.
In figure: 1-cutting tip, 2-shaft portion, 3-bossing, 4-workpiece, 5-adapter sleeve.
Detailed description of the invention
Be below further illustrating by reference to the accompanying drawings to the utility model embodiment, it is of the present utility model that detailed description of the invention is used to explanation, do not do any restriction to the utility model.
Detailed description of the invention 1:
Connect cutting tip 1 and shaft portion 2 with adapter sleeve 5, adapter sleeve 5 has circular bossing 3, circular protrusions quantity can be 2 or 3 or 4 or be other quantity.
Detailed description of the invention 2:
Cutting tip 1 has oval bossing 3, elliptical shaped lobes quantity can be 2 or 3 or 4 or be other quantity.The ellipse of projection can have multiple with the correlation of the circle of cutting element column part: oval and round tangent, oval and round crossing, ellipse comprises circle etc.
Detailed description of the invention 3:
Adapter sleeve 5 with bossing 3 connects two shaft portion.
Claims (8)
1. the cutting element with projection, comprise cutting tip (1), shaft portion (2), bossing (3), it is characterized in that: the full-size of bossing (3) is less than the size of workpiece (4) machining hole, bossing (3) with process endoporus hole wall and form the gap of restraining.
2. a kind of cutting element with projection according to claim 1, is characterized in that: described bossing (3) and cutting tip (1) are made into one, become a part.
3. a kind of cutting element with projection according to claim 1, is characterized in that: described bossing (3) and shaft portion (2) are made into one, become a part.
4. a kind of cutting element with projection according to claim 1, is characterized in that: described bossing (3) and cutting tip (1), shaft portion (2) are made into one, become a part.
5. a kind of cutting element with projection according to claim 1 or 2 or 3 or 4, is characterized in that: the outline line of bossing (3) is round, oval.
6. the cutting element with projection, comprise cutting tip (1), shaft portion (2), bossing (3), adapter sleeve (5), it is characterized in that: the full-size of described bossing (3) is less than the size of workpiece (4) machining hole, bossing (3) with process endoporus hole wall and form the gap of restraining, adapter sleeve (5) has bossing (3), bossing (3) and adapter sleeve (5) are made into one, become a part, adapter sleeve (5) connects cutting tip (1) and shaft portion (2).
7. the cutting element with projection, comprise cutting tip (1), shaft portion (2), bossing (3), adapter sleeve (5), it is characterized in that: the full-size of described bossing (3) is less than the size of workpiece (4) machining hole, bossing (3) with process endoporus hole wall and form the gap of restraining, adapter sleeve (5) has bossing (3), bossing (3) and adapter sleeve (5) are made into one, become a part, adapter sleeve (5) connects two shaft portion.
8. the cutting element with projection, comprise cutting tip (1), shaft portion (2), bossing (3), adapter sleeve (5), it is characterized in that: the full-size of described bossing (3) is less than the size of workpiece (4) machining hole, bossing (3) with process endoporus hole wall and form the gap of restraining, adapter sleeve (5) has bossing (3), bossing (3) and adapter sleeve (5) are made into one, become a part, adapter sleeve (5) connects cutting tip (1) and shaft portion (2), simultaneously, adapter sleeve (5) connects two shaft portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520116320.3U CN204818204U (en) | 2015-02-13 | 2015-02-13 | Cutting element with it is protruding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520116320.3U CN204818204U (en) | 2015-02-13 | 2015-02-13 | Cutting element with it is protruding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204818204U true CN204818204U (en) | 2015-12-02 |
Family
ID=54675845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520116320.3U Active CN204818204U (en) | 2015-02-13 | 2015-02-13 | Cutting element with it is protruding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204818204U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104646733A (en) * | 2015-02-13 | 2015-05-27 | 中北大学 | Cutting tool with protrusion |
| CN112453953A (en) * | 2020-10-30 | 2021-03-09 | 中北大学 | Machining device for lathe or boring machine |
| CN112453503A (en) * | 2020-10-30 | 2021-03-09 | 中北大学 | Hole machining spray-suction drilling system and drill bit thereof |
| CN112589153A (en) * | 2020-10-30 | 2021-04-02 | 中北大学 | Spraying and sucking type hole machining method |
| CN112589484A (en) * | 2020-10-30 | 2021-04-02 | 中北大学 | Hole machining method for lathe or boring machine |
-
2015
- 2015-02-13 CN CN201520116320.3U patent/CN204818204U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104646733A (en) * | 2015-02-13 | 2015-05-27 | 中北大学 | Cutting tool with protrusion |
| CN112453953A (en) * | 2020-10-30 | 2021-03-09 | 中北大学 | Machining device for lathe or boring machine |
| CN112453503A (en) * | 2020-10-30 | 2021-03-09 | 中北大学 | Hole machining spray-suction drilling system and drill bit thereof |
| CN112589153A (en) * | 2020-10-30 | 2021-04-02 | 中北大学 | Spraying and sucking type hole machining method |
| CN112589484A (en) * | 2020-10-30 | 2021-04-02 | 中北大学 | Hole machining method for lathe or boring machine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |