CN208976857U - A kind of boring bar structure - Google Patents
A kind of boring bar structure Download PDFInfo
- Publication number
- CN208976857U CN208976857U CN201821736648.5U CN201821736648U CN208976857U CN 208976857 U CN208976857 U CN 208976857U CN 201821736648 U CN201821736648 U CN 201821736648U CN 208976857 U CN208976857 U CN 208976857U
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- knife bar
- interlude
- bar
- blade installation
- boring
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Abstract
The utility model discloses a kind of boring bar structure, the knife bar including whole structure cylindrical, the rear end of knife bar is that clamping end is driven so that machine tool chief axis clamps, and is in several blade installation structures being equipped at interval along its own axial direction on knife bar；It is characterized in that, the knife bar is coaxially set and is sequentially connected end to end fixed knife bar leading portion, knife bar interlude and knife bar back segment, and the material of knife bar leading portion and knife bar back segment is hard alloy steel, the material of knife bar interlude is tool steel, and the blade installation structure is equipped on knife bar interlude.The advantages of the utility model has more convenient processing and manufacturing, can shorten the processing and manufacturing period, can preferably reduce cutter use cost.
Description
Technical field
The utility model relates to boring cutter technical field more particularly to a kind of boring bar structures.
Background technique
Boring cutter is one kind of cutting tool for boring, usually round handle, also there is larger workpiece user knife bar, most common occasion
It is exactly interior hole machined, reaming, profiling etc..There is one or two cutting tip, dedicated for the progress roughing of existing hole, half
The cutter of finishing or finishing.Boring cutter can beBoring machine、LatheOrMilling machineUpper use.
In being processed to elongated stepped hole, it will usually use on the knife bar of boring cutter along the axial setting in interval
The boring cutter of multiple groups cutter head.Wherein, knife bar generally use hard alloy steel material manufacture, this cutter exist in the fabrication process with
There is processing and manufacturing difficulty, the disadvantage of process-cycle length in lower problem, the knife bar of 1 slim-lined construction；2 need to process accordingly on knife bar
For installing the structure of boring cutter blade, the knife bar processing mounting structure of hard alloy is difficult；The use cost of 3 cutters is high.
Therefore, a kind of more convenient processing and manufacturing how can be designed, processing and manufacturing period, Neng Gougeng can be shortened
The boring bar structure of good reduction cutter use cost, becoming those skilled in the art has technical problem to be solved.
Utility model content
In view of the above shortcomings of the prior art, the technical problem to be solved by the utility model is to how to design one kind more
Add and facilitate processing and manufacturing, the processing and manufacturing period can be shortened, can preferably reduce the boring bar structure of cutter use cost.
In order to solve the above-mentioned technical problem, the utility model uses the following technical solution:
A kind of boring bar structure, the knife bar including whole structure cylindrical, the rear end of knife bar are clamping end for machine
Bed main shaft clamping transmission is in several blade installation structures being equipped at interval along its own axial direction on knife bar；It is characterized in that
The knife bar is coaxially set and is sequentially connected end to end fixed knife bar leading portion, knife bar interlude and knife bar back segment, and
The material of knife bar leading portion and knife bar back segment is hard alloy steel, and the material of knife bar interlude is tool steel, and in knife bar interlude
It is equipped with the blade installation structure.
In this way, entire knife bar is designed to three sections, it can facilitate and be connected to after being processed respectively to each toolholder section
Together, there is the advantages of facilitating knife bar to process, capable of shortening the knife bar process-cycle.Also, it will need that blade installation structure is arranged
The material of toolholder section tool steel is changed to by hard alloy steel, because tool steel has better processing performance, can facilitate
Blade installation structure is processed on the toolholder section of tool steel material, has the advantages that more convenient processing and manufacturing.And it can also
Reach the advantages of reducing use cost.
As optimization, knife bar leading portion and opposite two end faces and knife bar back segment and knife bar interlude phase of knife bar interlude
Pair two end faces be respectively set as the indent being mutually matched circle V-type face and outer dome V-type face, and opposite one group of indent circle V
Type face and outer dome V-type face are in be affixed and be fixed together.
In this way, the area that knife bar leading portion and knife bar interlude and knife bar back segment and knife bar interlude opposing end surface are affixed is more
Greatly, the reliability of connection can preferably be improved.
As optimization, it is welded together between opposite one group of indent circle V-type face and outer dome V-type face.
In this way, connection enhanced convenience, and it is more reliable after connection.
As optimization, the apex angle in indent circle V-type face is 120 °；The apex angle in the outer dome V-type face is 120 °.
In such manner, it is possible to make the area being affixed in indent circle V-type face and corresponding outer dome V-type face bigger, and can
More convenient docking.
As optimization, the setting there are three blade installation structure in interval on knife bar interlude.
In this way, structure is more reasonable, three blade installation structures are all disposed on knife bar interlude, can be had conveniently
The advantages of processing.
As optimization, the blade installation structure is the threaded connection hole being arranged in knife bar interlude peripheral surface.
In this way, blade installation structure is simpler, facilitate processing and manufacturing, and connect firm, easy disassembly blade.
As optimization, Oil Guide is equipped on knife bar leading portion fore end outer circumference face and on knife bar back segment fore end outer circumference face
Slot, the oil guide groove are six of the rounded array distribution centered on knife bar axis.
In this way, the leading portion of knife bar leading portion is able to carry out Oil Guide, increase cooling and the lubricant effect of cutter.
As optimization, the front end of the knife bar leading portion is equipped with chamfering.
In this way, reamer is when in use, the chamfering of knife bar front end has guiding role, can be easy to use.
As optimization, knife bar is equipped with along the cooling duct that own axes are arranged, in the circumferential side wall of knife bar interlude
The corresponding blade installation structure is equipped with cooling hole, and cooling hole is connected with the cooling duct, and the outer end of cooling hole is corresponding
Be connected with blade installation structure.
In such manner, it is possible to which coolant liquid is facilitated to enter from cooling duct, and flow out, makes it possible to preferably to installation from cooling hole
Blade on blade installation structure is cooled down.
As optimization, the cooling hole is using knife bar center line as four of the rounded array distribution in the center of circle.
In this way, making entire cooling effect more uniform, blade can be preferably protected.
As optimization, the cooling hole opening inclination towards knife bar front end be arranged, and the center line of cooling hole with
The angle of knife bar center line is 22 °.
It in such manner, it is possible to which coolant liquid is enabled preferably to flow forward along knife bar, can preferably be cooled down, improve cutter
Service life.
Detailed description of the invention
Structural schematic diagram in Fig. 1 specific embodiment of the present invention.
Fig. 2 is the partial enlarged view of Fig. 1.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
When specific implementation: as depicted in figs. 1 and 2, a kind of boring bar structure, the knife bar including whole structure cylindrical
1, the rear end of knife bar is that clamping end is driven so that machine tool chief axis clamps, and along its own axial direction is in that being equipped with for interval is several on knife bar
A blade installation structure；The knife bar is coaxially set and is sequentially connected end to end fixed knife bar leading portion 2, among knife bar
Section 3 and knife bar back segment 4, and the material of knife bar leading portion and knife bar back segment is hard alloy steel, the material of knife bar interlude is tool
Steel, and the blade installation structure is equipped on knife bar interlude.
In this way, entire knife bar is designed to three sections, it can facilitate and be connected to after being processed respectively to each toolholder section
Together, there is the advantages of facilitating knife bar to process, capable of shortening the knife bar process-cycle.Also, it will need that blade installation structure is arranged
The material of toolholder section tool steel is changed to by hard alloy steel, because tool steel has better processing performance, can facilitate
Blade installation structure is processed on the toolholder section of tool steel material, has the advantages that more convenient processing and manufacturing.And it can also
Reach the advantages of reducing use cost.
In present embodiment, knife bar leading portion and opposite two end faces and knife bar back segment and knife bar of knife bar interlude
Two opposite end faces of interlude are respectively set as the indent being mutually matched circle V-type face and outer dome V-type face, and opposite one group
Indent circle V-type face and outer dome V-type face are in be affixed and be fixed together.
In this way, the area that knife bar leading portion and knife bar interlude and knife bar back segment and knife bar interlude opposing end surface are affixed is more
Greatly, the reliability of connection can preferably be improved.
In present embodiment, it is welded to connect between opposite one group of indent circle V-type face and outer dome V-type face one
It rises.
In this way, connection enhanced convenience, and it is more reliable after connection.
In present embodiment, the apex angle in indent circle V-type face is 120 °；The apex angle in the outer dome V-type face is
120°。
In such manner, it is possible to make the area being affixed in indent circle V-type face and corresponding outer dome V-type face bigger, and can
More convenient docking.
In present embodiment, the setting there are three blade installation structure in interval on knife bar interlude 3.
In this way, structure is more reasonable, three blade installation structures are all disposed on knife bar interlude, can be had conveniently
The advantages of processing.
In present embodiment, the blade installation structure is the screw thread being arranged in 3 peripheral surface of knife bar interlude
Connecting hole 5.
In this way, blade installation structure is simpler, facilitate processing and manufacturing, and connect firm, easy disassembly blade.
In present embodiment, on 2 fore end outer circumference face of knife bar leading portion and on 4 fore end outer circumference face of knife bar back segment
It is equipped with oil guide groove, the oil guide groove is six of the rounded array distribution centered on knife bar axis.
In this way, the leading portion of knife bar leading portion is able to carry out Oil Guide, increase cooling and the lubricant effect of cutter.
In present embodiment, the front end of the knife bar leading portion 2 is equipped with chamfering.
In this way, reamer is when in use, the chamfering of knife bar front end has guiding role, can be easy to use.
In present embodiment, knife bar is equipped with along the cooling duct that own axes are arranged 6, in the week of knife bar interlude
The blade installation structure is corresponded to on side wall equipped with cooling hole 7, and cooling hole is connected with the cooling duct, cooling hole
Outer end is corresponding to be connected with blade installation structure.
In such manner, it is possible to which coolant liquid is facilitated to enter from cooling duct, and flow out, makes it possible to preferably to installation from cooling hole
Blade on blade installation structure is cooled down.
In present embodiment, the cooling hole is using knife bar center line as four of the rounded array distribution in the center of circle.
In this way, making entire cooling effect more uniform, blade can be preferably protected.
In present embodiment, the opening inclination of the cooling hole 7 is arranged towards the front end of knife bar, and cooling hole
The angle of center line and knife bar center line is 22 °.
It in such manner, it is possible to which coolant liquid is enabled preferably to flow forward along knife bar, can preferably be cooled down, improve cutter
Service life.
Claims (10)
1. a kind of boring bar structure, the knife bar (1) including whole structure cylindrical, the rear end of knife bar are clamping end for machine
Bed main shaft clamping transmission is in several blade installation structures being equipped at interval along its own axial direction on knife bar；It is characterized in that,
The knife bar include be coaxially set and after being sequentially connected end to end fixed knife bar leading portion (2), knife bar interlude (3) and knife bar
Section (4), and the material of knife bar leading portion and knife bar back segment is hard alloy steel, the material of knife bar interlude is tool steel, and in knife
Bar interlude is equipped with the blade installation structure.
2. a kind of boring bar structure as described in claim 1, which is characterized in that knife bar leading portion and knife bar interlude are opposite
Two end faces and opposite two end faces of knife bar back segment and knife bar interlude are respectively set as the indent being mutually matched circle V-type face
With outer dome V-type face, and opposite one group of indent circle V-type face and outer dome V-type face are in being affixed and be fixed together.
3. a kind of boring bar structure as claimed in claim 2, which is characterized in that opposite one group of indent circle V-type face and outer
Dome V-type is welded together between face.
4. a kind of boring bar structure as claimed in claim 2, which is characterized in that the apex angle in indent circle V-type face is
120°；The apex angle in the outer dome V-type face is 120 °.
5. a kind of boring bar structure as described in claim 1, which is characterized in that in interval on knife bar interlude (3)
If there are three blade installation structures；
The blade installation structure is the threaded connection hole (5) being arranged in knife bar interlude (3) peripheral surface.
6. a kind of boring bar structure as described in claim 1, which is characterized in that in knife bar leading portion (2) fore end outer circumference face
Oil guide groove is equipped on upper and knife bar back segment (4) fore end outer circumference face, the oil guide groove is centered on knife bar axis in circle
Six of shape array distribution.
7. a kind of boring bar structure as claimed in claim 6, which is characterized in that the front end of the knife bar leading portion (2) is equipped with
Chamfering.
8. a kind of boring bar structure as described in claim 1, which is characterized in that knife bar is equipped with to be arranged along own axes
Cooling duct (6) corresponds to the blade installation structure in the circumferential side wall of knife bar interlude and is equipped with cooling hole (7), and cooling
Hole is connected with the cooling duct, and the outer end of cooling hole is corresponding to be connected with blade installation structure.
9. a kind of boring bar structure as claimed in claim 8, which is characterized in that the cooling hole is to be with knife bar center line
Four of the rounded array distribution in the center of circle.
10. a kind of boring bar structure as claimed in claim 8, which is characterized in that the opening of the cooling hole (7) tilts court
It is arranged to the front end of knife bar, and the angle of the center line of cooling hole and knife bar center line is 22 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821736648.5U CN208976857U (en) | 2018-10-25 | 2018-10-25 | A kind of boring bar structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821736648.5U CN208976857U (en) | 2018-10-25 | 2018-10-25 | A kind of boring bar structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208976857U true CN208976857U (en) | 2019-06-14 |
Family
ID=66788901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821736648.5U Active CN208976857U (en) | 2018-10-25 | 2018-10-25 | A kind of boring bar structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208976857U (en) |
-
2018
- 2018-10-25 CN CN201821736648.5U patent/CN208976857U/en active Active
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