CN205733146U - A kind of drill - Google Patents
A kind of drill Download PDFInfo
- Publication number
- CN205733146U CN205733146U CN201620678414.4U CN201620678414U CN205733146U CN 205733146 U CN205733146 U CN 205733146U CN 201620678414 U CN201620678414 U CN 201620678414U CN 205733146 U CN205733146 U CN 205733146U
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- CN
- China
- Prior art keywords
- knife
- work portion
- chip
- point
- bar
- 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.)
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Abstract
This utility model provides a kind of drill, belongs to machine tools technical field.The problem it solving the cutter drilling quality difference being currently used for boring.This drill includes: knife bar, there is clamping part, work portion, work portion is bottom away from clamping part one end, work portion offers two chip areas, the circumferential lateral surface in work portion is installed with some extruding bars, it is that circular arc is arranged that extruding bar arranges and extrude the lateral wall of bar in the middle part of work portion, is further opened with the runner for cutting fluid circulation in knife bar；Blade, it is connected with bottom, work portion, blade lower end is provided with point of a knife and divides two cutting edges being listed in point of a knife both sides, and two cutting edge symmetrical about nose center, each cutting edge both sides are provided with rake face, rear knife face, two rake faces and two chip area one_to_one corresponding are arranged, and offer chip-breaker at rake face near point of a knife one end, and chip-breaker is formed by two filings-breaking surfaces being obliquely installed are crossing.This utility model has the advantage that drilling quality is good.
Description
Technical field
This utility model belongs to machine tools technical field, relates to a kind of drill.
Background technology
Cutter is the instrument in machine-building for machining, also known as cutting element.Most of cutter is that machine is used
, it is divided into face process tool, aperture knife tool, threading tool, gear cutting tool and cutting off tool etc..
Cutter generally comprises retained part, working portion, and working portion is exactly the part producing and processing chip, including cutter
Sword, chip is made to break broken or the structure, the chip removal that wind up or hold the structural element such as passage of the storage space of chip, cutting fluid.
The working portion of some cutters then comprises cutting tip and calibrated section, and the effect of cutting tip is to excise with blade
Chip, the effect of calibrated section is the finished surface that cut of smoothing and guides cutter.
Wherein aperture knife tool has drill bit, reamer, boring cutter, reamer and inner surface broaching tool etc., existing drill major part
Being all to use spiral bit to carry out Drilling operation, drill bit easily bursts apart, and damages cutter and workpiece, and working effect is undesirable, and
Deviations easily occurs during boring, causes holing unsuccessfully.
In sum, it is currently used for the deficiency on the cutter structure of boring for solution, needs a kind of reasonable in design, brill of design
The measured drill of hole matter.
Summary of the invention
The purpose of this utility model is to there are the problems referred to above for existing technology, it is proposed that a kind of reasonable in design, boring
The measured drill of matter.
The purpose of this utility model can be realized by following technical proposal: a kind of drill, including:
Knife bar, has clamping part, the work portion being connected as a single entity, and described work portion is bottom away from clamping part one end, in work
Make in portion, to offer two chip areas being vertically arranged, described chip area extended in the middle part of work portion by bottom and two chip areas about
The axial line centrosymmetry of knife bar, the some extruding bars being installed with in the circumferential lateral surface in work portion between two chip areas,
It is that circular arc is arranged that described extruding bar arranges and extrude the lateral wall of bar in the middle part of work portion, is further opened with for cutting in knife bar
Cut the logical runner of liquid stream and runner sequentially passes through by clamping part, work portion；
Blade, is connected with bottom, work portion by being installed in the projection of blade upper end, blade lower end be provided with point of a knife and
Point being listed in two cutting edges of point of a knife both sides, two cutting edges are tilted down setting relative to point of a knife respectively, and two cutting edges are about cutter
Point centrosymmetry, each cutting edge both sides are provided with rake face, rear knife face, two rake faces and two chip area one_to_one corresponding and set
Putting, offer chip-breaker at rake face near point of a knife one end, described chip-breaker is formed by two filings-breaking surfaces being obliquely installed are crossing.
In above-mentioned a kind of drill, it is vertically arranged with land in blade both sides respectively, and two lands are about nose center
Symmetrical.
In above-mentioned a kind of drill, being installed with two mounting blocks being centrosymmetric in bottom, two mounting blocks surround formation
Mounting groove, described runner is positioned in the middle part of mounting groove, and above-mentioned projection is plugged in runner, and projection and runner matched in clearance, each
Installing hole is all offered on mounting blocks.
In above-mentioned a kind of drill, the quantity of described extruding bar is four, and divides the both sides being listed in chip area two-by-two.
Compared with prior art, this utility model reasonable in design, the smooth row being provided with beneficially chip of chip area
Go out, it is to avoid the damage of cutter；The setting of chip-breaker can be ruptured chip, it is to avoid long chip is wrapped on cutter, it is ensured that cut
The smooth discharge of bits；The setting of extruding bar can carry out smoothing and cutter can be guided to hole further, really manufactured hole
Protect the accuracy of boring, it is ensured that drilling quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model one preferred embodiment.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the part-structure schematic diagram of Fig. 1.
Fig. 4 is the structural representation of blade in this utility model one preferred embodiment.
In figure, 10, knife bar；11, clamping part；12, work portion；121, chip area；122, mounting blocks；1221, installing hole；
123, mounting groove；13, runner；14, extruding bar；20, blade；21, point of a knife；22, cutting edge；23, rake face；24, rear knife face；
25, chip-breaker；26, land；27, projection.
Detailed description of the invention
The following is specific embodiment of the utility model and combine accompanying drawing, the technical solution of the utility model is made further
Description, but this utility model is not limited to these embodiments.
As shown in Figures 1 to 4, this drill includes:
Knife bar 10, has clamping part 11, the work portion 12 being connected as a single entity, and work portion 12 is the end away from clamping part 11 one end
End, offers two chip areas 121 being vertically arranged in work portion 12, and chip area 121 is extended in the middle part of work portion 12 by bottom
And two chip area 121 about the axial line centrosymmetry of knife bar 10, the circumferential lateral surface in work portion 12 is installed with and is positioned at two rows
Multiple extruding bars 14 between bits groove 121, it is circle that extruding bar 14 arranges and extrude the lateral wall of bar 14 in the middle part of work portion 12
Arc arrange, be further opened with in knife bar 10 for cutting fluid circulation runner 13 and runner 13 sequentially pass through by clamping part 11,
Work portion 12；
Blade 20, is connected with bottom, work portion 12 by being installed in the projection 27 of blade 20 upper end, and blade 20 lower end is arranged
Having point of a knife 21 and divide two cutting edges 22 being listed in point of a knife 21 both sides, two cutting edges 22 are tilted down relative to point of a knife 21 respectively and set
Put, and two cutting edges 22 be provided with rake face 23, rear knife face 24 about point of a knife 21 centrosymmetry, each cutting edge 22 both sides,
Two rake faces 23 and two chip area 121 one_to_one corresponding are arranged, and offer chip-breaker 25 at rake face 23 near point of a knife 21 one end, disconnected
Bits groove 25 is formed by two filings-breaking surfaces being obliquely installed are crossing.
Existing drill major part all be use spiral bit carry out Drilling operation, drill bit easily bursts apart, damage cutter and
Workpiece, working effect is undesirable, and deviations easily occurs when boring, causes holing unsuccessfully.
Devise a kind of drill for this this utility model, use the modular design of knife bar 10 and blade 20, it is achieved drillman
Making, clamping part 11 is for jointly acting on Cutting tool installation manner with blade 20 in corresponding equipment, work portion 12.It is provided with again simultaneously
Extruding bar 14, can carry out machined hole wall extruding smoothing, it is possible to the roughness of regulation hole wall, can also guide cutter simultaneously
Tool, it is ensured that bore position is accurate, and drilling quality is good.
Wherein, the lateral wall of extruding bar 14 is that circular arc is arranged, and extrudes the periphery and cutter formed when bar 14 rotates
The isometrical setting of periphery formed during sheet 20 rotary cutting, it is ensured that extruding bar 14 contacts with hole wall, extrudes the smoothing of bar 14, draws
Lead function well.
Being provided with two cutting units on blade 20, two cutting units are centrosymmetric, boring time, blade 20 along with
Knife bar 10 rotates together, and when rotated, two cutting units work simultaneously, accelerates penetration rate and ensures the most again boring
Steadily, cutting effect is good.
During boring, the chip produced under cutting edge 22 acts on is discharged along corresponding rake face 23, subsequently enters corresponding
Chip area 121, discharge, the setting of rake face 23 can control chip and discharge along both fixed tracks, it is ensured that chip suitable
Profit is discharged.
In the discharge process of above-mentioned chip, longer chip can also be cut off by the setting of chip-breaker 25, it is to avoid mistake
Long chip is wrapped on cutter along with the rotation of cutter, damages cutter, the carrying out of impact boring work.
Preferably, it is vertically arranged with land 26 in blade 20 both sides respectively, and two lands 26 are about point of a knife 21 centrosymmetry.
The setting of land 26 can strengthen the intensity of blade 20 to a certain extent, decreases the cylindrical abrasion adding man-hour simultaneously, it is ensured that
The reliability of blade 20 work so that the inner surface fineness in hole to be processed promotes.
It is further preferred that be installed with two mounting blocks 122 being centrosymmetric in bottom, two mounting blocks 122 surround formation
Mounting groove 123, runner 13 is positioned in the middle part of mounting groove 123, and above-mentioned projection 27 is plugged in runner 13, and between projection 27 and runner 13
Gap coordinates, and each mounting blocks 122 all offers installing hole 1221.
Two mounting blocks 122 in the present embodiment and work portion 12 are connected as a single entity settings, the structural and stability of entirety
Good, the setting of mounting groove 123 has been also convenient for the installation of blade 20, during real work, can be loaded by the union piece such as screw, bolt
In corresponding installing hole 1221, blade 20 is fixedly mounted on bottom, work portion 12, it is ensured that blade 20 is firm with work portion 12
Connect, smooth working.
In projection 27 is plugged in runner 13 and projection 27 and runner 13 matched in clearance, during work, cutting fluid is from clamping part 11
Flow into, can be applied directly on blade 20 through runner 13 behind work portion 12, external pipe need not be used.Cutting fluid is on the one hand
The temperature that cutter, workpiece produce in working angles can be reduced, on the other hand can also fully wash away chip, avoid further
The hole of chip blocking processing, it is ensured that being smoothed out of boring work, it is ensured that the quality of boring, practicality is good.
Preferably, the quantity of extruding bar 14 is four, and divides the both sides being listed in chip area 121 two-by-two.Concrete, this enforcement
The quantity extruding bar 14 in example is preferably four, and four extruding bars 14 are one group with two, the position between two chip areas 121
Having at two, often the corresponding one group of extruding bar 14 in position, place, is evenly distributed, good working effect.
This drill reasonable in design, the smooth discharge being provided with beneficially chip of chip area 121, it is to avoid the damage of cutter
Bad；The setting of chip-breaker 25 can be ruptured chip, it is to avoid long chip is wrapped on cutter, it is ensured that the smooth discharge of chip；
The setting of extruding bar 14 can carry out smoothing and cutter can be guided to hole further manufactured hole, it is ensured that boring accurate
Property, it is ensured that drilling quality.
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 (3)
1. a drill, it is characterised in that including:
Knife bar, has clamping part, the work portion being connected as a single entity, and described work portion is bottom away from clamping part one end, in work portion
On offer two chip areas being vertically arranged, described chip area is extended in the middle part of work portion by bottom and two chip areas are about knife bar
Axial line centrosymmetry, the some extruding bars being installed with in the circumferential lateral surface in work portion between two chip areas, described
It is that circular arc is arranged that extruding bar arranges and extrude the lateral wall of bar in the middle part of work portion, is further opened with for cutting fluid in knife bar
Runner and the runner of circulation sequentially pass through by clamping part, work portion；
Blade, is connected with bottom, work portion by being installed in the projection of blade upper end, and blade lower end is provided with point of a knife and point row
At two cutting edges of point of a knife both sides, two cutting edges are tilted down setting relative to point of a knife respectively, and two cutting edges are about in point of a knife
The heart is symmetrical, and each cutting edge both sides are provided with rake face, rear knife face, two rake faces and two chip area one_to_one corresponding and arrange,
Rake face offers chip-breaker near point of a knife one end, and described chip-breaker is formed by two filings-breaking surfaces being obliquely installed are crossing.
A kind of drill the most according to claim 1, it is characterised in that be vertically arranged with land in blade both sides respectively, and
Two lands are symmetrical about nose center.
A kind of drill the most according to claim 1 and 2, it is characterised in that be installed with two peaces being centrosymmetric in bottom
Dress block, two mounting blocks surround formation mounting groove, and described runner is positioned in the middle part of mounting groove, and above-mentioned projection is plugged in runner, and convex
Post and runner matched in clearance, each mounting blocks all offers installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678414.4U CN205733146U (en) | 2016-06-27 | 2016-06-27 | A kind of drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678414.4U CN205733146U (en) | 2016-06-27 | 2016-06-27 | A kind of drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205733146U true CN205733146U (en) | 2016-11-30 |
Family
ID=57379920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620678414.4U Expired - Fee Related CN205733146U (en) | 2016-06-27 | 2016-06-27 | A kind of drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205733146U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108556078A (en) * | 2018-06-21 | 2018-09-21 | 贵州六合门业有限公司 | Round log recessing knife |
| CN111515693A (en) * | 2020-05-13 | 2020-08-11 | 重庆诚缘机械有限公司 | Numerical control machining center based on gang tool and shock absorber joint of processing thereof |
-
2016
- 2016-06-27 CN CN201620678414.4U patent/CN205733146U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108556078A (en) * | 2018-06-21 | 2018-09-21 | 贵州六合门业有限公司 | Round log recessing knife |
| CN111515693A (en) * | 2020-05-13 | 2020-08-11 | 重庆诚缘机械有限公司 | Numerical control machining center based on gang tool and shock absorber joint of processing thereof |
| CN111515693B (en) * | 2020-05-13 | 2021-11-19 | 重庆诚缘机械有限公司 | Numerical control machining center based on gang tool and shock absorber joint of processing thereof |
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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: 20170627 |