CN205733037U - A kind of composite boring cutters - Google Patents
A kind of composite boring cutters Download PDFInfo
- Publication number
- CN205733037U CN205733037U CN201620688704.7U CN201620688704U CN205733037U CN 205733037 U CN205733037 U CN 205733037U CN 201620688704 U CN201620688704 U CN 201620688704U CN 205733037 U CN205733037 U CN 205733037U
- Authority
- CN
- China
- Prior art keywords
- cutting
- boring
- drill plate
- straight trough
- boring cutter
- 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.)
- Expired - Fee Related
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- Drilling And Boring (AREA)
Abstract
This utility model provides a kind of composite boring cutters, belongs to cutting tool for CNC machine technical field, it solves existing Digit Control Machine Tool composite boring cutters chip removal effect poor, the problem that cutter head cooling effect is bad.This composite boring cutters includes cutter head, knife bar and connecting portion, cutter head includes the first drill plate and the second drill plate, cutting face along the first drill plate is provided with the first cutting slot, cutting face along the second drill plate is provided with the second cutting slot, second cutting slot includes spire and straight trough portion, spire connects with straight trough portion, is provided with boring cutter portion, is provided with boring cutter installing mechanism and boring cutter blade in boring cutter portion in straight trough portion；Cutting fluid internal flow channel it is provided with in connecting portion and knife bar.It is effective that this composite boring cutters has chip removal, the advantage of cutter head good cooling results.
Description
Technical field
This utility model relates to cutting tool for CNC machine technical field, particularly relates to a kind of composite boring cutters.
Background technology
On workpiece, the hole of machining high-precision typically requires and first passes through drill bit machined bottom, then is entered by reamer or boring cutter
The precision in one step processing hole, makes the machining accuracy in the hole on workpiece reach engine request, for improving working (machining) efficiency further, occurs
Compound tool.
In use, in order to improve working (machining) efficiency, the rotating speed of drill bit is the highest, drill bit for existing compound tool
When rotating speed is higher, the heat of the generation between drill bit and workpiece is relatively big, and superheating phenomenon easily occurs in drill bit, needs constantly to use
Coolant cools down.Operationally, coolant is all to be sprayed onto on drill bit by cooling tube to existing compound tool, and coolant is by outward
Portion contacts with compound tool, and the effect of cooling is not especially desirable, and the utilization rate of coolant is the highest, needs exploitation one
Compound tool so that during boring, the cooling effect of cutter is more preferable.
Utility model content
The technical problems to be solved in the utility model is: providing a kind of composite boring cutters, this composite boring cutters, borehole accuracy is high,
Chip removal is effective, the good cooling results of cutter head, and service life is long.
In order to solve described technical problem, the technical solution of the utility model: a kind of composite boring cutters, including cutter head, knife bar
And connecting portion, described cutter head includes the first drill plate and the second drill plate, described first drill plate and the second bore cutter
Sheet is 180 degree and shifts to install the end at knife bar, and the cutting face along the first drill plate is provided with the first cutting slot, along the second boring
The cutting face of blade is provided with the second cutting slot, and described second cutting slot includes spire and straight trough portion, described spire and straight trough
Portion connects, and described straight trough portion extends to the knife bar end near connecting portion, is provided with boring cutter portion, in described boring cutter portion in straight trough portion
It is provided with boring cutter installing mechanism and boring cutter blade；Cutting fluid internal flow channel it is provided with, stream in described cutting fluid in connecting portion and knife bar
Passage includes a main channel and some sub-runners, and the import of the sprue of described cutting fluid internal flow channel is arranged on the end of connecting portion
Portion, the outlet of the sub-runner of described cutting fluid internal flow channel is distributed on the cell wall of the first cutting slot and the second cutting slot.
As preferably, described boring cutter installing mechanism includes even tool rest, and described boring cutter blade is arranged on and connects on tool rest, even cutter
One end of seat is fixed with mounting blocks, and the side of described mounting blocks is threaded push rod screw.Compared with prior art, this practicality
The above-mentioned technology of novel employing, has the advantage that this utility model arranges the runner of coolant in the inside of drill bit so that cooling
Liquid flows in having drill bit and is flowed out by the opening part of the first cutting slot and the second cutting slot, and after outflow, coolant can be along first
The cell wall of cutting slot and the second cutting slot flows in the cutter head of chisel edge, good cooling results, and coolant utilization rate is high, drill bit
Service life is long.
Accompanying drawing explanation
Fig. 1 is overall structure figure of the present utility model；
Fig. 2 is the structure chart at another visual angle of the present utility model.
In figure, 1, connecting portion；11, locating surface；2, portion is leaned；3, knife bar；31, outlet；4, the second drill plate；4a,
One drill plate；5, the second cutting slot；5a, the second cutting slot；51, straight trough portion；6, boring cutter blade；7, tool rest is connected；8, mounting blocks；
9, push rod screw.
Detailed description of the invention
Below by combining the drawings and specific embodiments, the technical solution of the utility model is described in further detail.
This utility model provides a kind of composite boring cutters, solves that existing compound tool chip removal effect is bad and cutter cutter
The technical problem that head cooling effect is bad.
Seeing in figure, this composite boring cutters includes connecting portion 1, leans portion 2 and knife bar 3, knife bar 3 and connecting portion 1 protrusion and is formed at
Lean the two ends in portion 2, lean the diameter diameter more than connecting portion 1 in portion 2, lean the diameter diameter more than knife bar 3 in portion 2,
Connecting portion 1 is provided with installation locating surface 11, can be quickly installed on lathe by composite boring cutters according to installing locating surface 11.Knife bar 3
Front end be provided with the first drill plate 4a and the second drill plate 4, the first drill plate 4a and the second drill plate 4 in 180 degree
Shifting to install, when composite boring cutters rotates, the first drill plate 4a and the second drill plate 4 can cover aperture to be cut
Scope.Cutting face along the first drill plate 4a is provided with the first cutting slot 5a, and the cutting face along the second drill plate 4 is provided with second
Cutting slot 5, the first cutting slot 5a and the second cutting slot 5 are arranged the most in the shape of a spiral.Second cutting slot 5 also includes a straight trough portion 51,
The cell wall in straight trough portion 51 is provided with mounting groove, is provided with boring cutter portion in mounting groove, and boring cutter portion includes that one is connected in mounting groove bottom surface
Mounting blocks 8, be connected in company's tool rest 7 of mounting blocks 8 one end and be threaded in the push rod screw 9 of mounting blocks 8 opposite side.Boring cutter
Blade 6 is in equilateral triangle shape, and on the company's of being fixed on tool rest 7, one of them wedge angle of boring cutter blade 6 protrudes the end of mounting groove
Face, the revolution external diameter of boring cutter blade 6 is more than the first drill plate 4a and the revolution external diameter of the second drill plate 4.Push rod screw 9 can
Hold out against mounting blocks 8 and connect tool rest 7 so that boring cutter blade 6 is operationally difficult to shake, it is ensured that the surface roughness in the hole of processing
Little.Boring cutter blade 6 is arranged to equilateral triangle shape and boring cutter blade 6 can be made to use wedge angle to cut, and cutting effect is good, and can be back and forth
Change angle cutting, save processing cost.
Being additionally provided with cutting fluid internal flow channel inside this composite boring cutters, the import of cutting fluid internal flow channel is arranged on connecting portion 1
End, cutting fluid internal flow channel includes a sprue and some sub-runners, and sprue connects import, sub-runner connection outlet
31.The import of cutting fluid internal flow channel is arranged on the end of connecting portion 1, and the outlet 31 of cutting fluid internal flow channel is arranged on first and cuts
Cutting on the cell wall of groove 5a and the second cutting slot 5, when cooling down this composite boring cutters, cutting fluid is first by cutting fluid internal flow channel
Import enters, and is entered into sub-runner by the bifurcation mouth of sprue and sub-runner, and by being arranged on the first cutting slot 5a and second
Outlet 31 on cutting slot 5 cell wall is flowed out, and the cutting fluid after outflow flow to along the cell wall of the first cutting slot 5a and the second cutting slot 5
At first drill plate 4a of knife bar 3 front end and at the second drill plate 4.The setting of cutting fluid internal flow channel makes to work as composite boring
Cutter is when certain depth is got in boring, and cutting fluid still can well be cooled to enter deeply into the pores the drill plate in portion, it is ensured that boring
The temperature of blade, in applicable scope, reduces the spoilage of drill plate.
Specific embodiment described herein is only to this utility model spirit explanation for example.This utility model institute
Belong to those skilled in the art described specific embodiment to make various amendment or supplement or use similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (2)
1. a composite boring cutters, including cutter head, knife bar and connecting portion, it is characterised in that described cutter head includes the first drill plate
With the second drill plate, described first drill plate and the second drill plate are 180 degree and shift to install the end at knife bar, along
The cutting face of one drill plate is provided with the first cutting slot, and the cutting face along the second drill plate is provided with the second cutting slot, and described
Two cutting slots include spire and straight trough portion, and described spire connects with straight trough portion, and described straight trough portion extends to knife bar near even
Connect the end in portion, straight trough portion is provided with boring cutter portion, in described boring cutter portion, is provided with boring cutter installing mechanism and boring cutter blade；Connecting
Being provided with cutting fluid internal flow channel in portion and knife bar, described cutting fluid internal flow channel includes a main channel and some sub-runners, described
The import of the sprue of cutting fluid internal flow channel is arranged on the end of connecting portion, going out of the sub-runner of described cutting fluid internal flow channel
Mouth is distributed on the cell wall of the first cutting slot and the second cutting slot.
Composite boring cutters the most according to claim 1, it is characterised in that described boring cutter installing mechanism includes even tool rest, institute
Stating boring cutter blade to be arranged on company's tool rest, even one end of tool rest is fixed with mounting blocks, and the side of described mounting blocks is threaded to be had
Push rod screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620688704.7U CN205733037U (en) | 2016-06-28 | 2016-06-28 | A kind of composite boring cutters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620688704.7U CN205733037U (en) | 2016-06-28 | 2016-06-28 | A kind of composite boring cutters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205733037U true CN205733037U (en) | 2016-11-30 |
Family
ID=57380190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620688704.7U Expired - Fee Related CN205733037U (en) | 2016-06-28 | 2016-06-28 | A kind of composite boring cutters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205733037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108436119A (en) * | 2018-05-02 | 2018-08-24 | 宁波丹德瑞精密机械科技有限公司 | A kind of boring cutter |
-
2016
- 2016-06-28 CN CN201620688704.7U patent/CN205733037U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108436119A (en) * | 2018-05-02 | 2018-08-24 | 宁波丹德瑞精密机械科技有限公司 | A kind of boring cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20170628 |