CN209699370U - A kind of woodwork chit drill - Google Patents
A kind of woodwork chit drill Download PDFInfo
- Publication number
- CN209699370U CN209699370U CN201822264348.8U CN201822264348U CN209699370U CN 209699370 U CN209699370 U CN 209699370U CN 201822264348 U CN201822264348 U CN 201822264348U CN 209699370 U CN209699370 U CN 209699370U
- Authority
- CN
- China
- Prior art keywords
- chip
- cutting edge
- cutting
- arc groove
- guide pad
- 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.)
- Active
Links
Landscapes
- Drilling Tools (AREA)
Abstract
The utility model relates to a kind of woodwork chit drill, cutting head includes three centered on drill shank axis, equidistant radially distributed cutting edge；It is provided with tapping screw thread slot on the side of each cutting edge upper end, is provided on each cutting edge side of tapping screw thread slot lower end and is additionally provided with arc groove, and arc groove includes the lateral arc groove and apex point arc groove set gradually from inside to outside；The cutting edge of arc groove lower end is equipped with a chip-removal hole, is equipped with the chip removal guide pad tilted down along cutting edge one side in the chip-removal hole, and each chip removal guide pad mutually staggers.Utility model has the advantages that it is three sword structures that the utility model, which changes Double-blade structure, faster, cutting is sharper, and increases drilling circularity for cutting head punching meeting speed, meanwhile, it can guarantee uniform force in cutting process, and then guarantee cutting precision；In addition, adding chip-removal hole and chip removal guide pad, cutting resistance can be reduced, guarantee that chip removal is smooth, thus improve the service life of Woodworking flat drill.
Description
Technical field
The utility model relates to a kind of boring bar tool, in particular to a kind of woodwork chit drill.
Background technique
Woodworking flat drill is mainly used for deep hole processing, and current chit drill mostly uses greatly Double-blade structure, and cutting is not sharp, usually goes out
The phenomenon that existing hardwood beats motionless problem, and during the cutting process due to discontinuity, often will appear offset, causes to process
The shape come deforms, and subsequent also to be finished, the precision and production efficiency of processing be not high.In addition, used at present
The chit drill of Double-blade structure, there is also the problems that cutting resistance is big and chip removal is unsmooth, and it is low in turn result in Woodworking flat drill service life
Defect.
Therefore, researching and developing one kind can be improved trepanning velocity and service life, and guarantee the woodwork chit drill of cutting precision
It is necessary.
Utility model content
The technical problem to be solved by the present invention is to provide one kind can be improved trepanning velocity and service life, and guarantees
The woodwork chit drill of cutting precision.
In order to solve the above technical problems, the technical solution of the utility model are as follows: a kind of woodwork chit drill, including drillstock and
Cutting head；Its innovative point is: the cutting head includes three centered on drill shank axis, equidistantly radially distributed to cut
Cut sword；Tapping screw thread slot, each cutting edge side for being provided with tapping screw thread slot lower end are provided on the side of each cutting edge upper end
Arc groove is additionally provided on face, and the arc groove includes the lateral arc groove and apex point arc groove set gradually from inside to outside；Institute
The cutting edge for stating arc groove lower end is equipped with a chip-removal hole, is equipped with the row tilted down along cutting edge one side in the chip-removal hole
Consider guide pad to be worth doing, and each chip removal guide pad mutually staggers.
Further, apex point arc chip space, and apex point arc-like rows are additionally provided on the cutting edge of chip-removal hole upper end side
Bits slot and chip removal guide pad are separately positioned on the two sides of cutting edge.
Utility model has the advantages that
(1) the utility model woodwork chit drill, change Double-blade structure are three sword structures, and cutting head punching meeting speed is more
Fastly, cutting is sharper, and increases drilling circularity, meanwhile, it can guarantee uniform force in cutting process, and then guarantee cutting precision；
In addition, having additional chip-removal hole on the cutting edge of arc groove lower end, and it is equipped in chip-removal hole and is tilted down along cutting edge one side
Chip removal guide pad, can reduce cutting resistance, guarantee that chip removal is smooth, thus improve the service life of Woodworking flat drill；
(2) the utility model woodwork chit drill, be additionally provided with apex point on the cutting edge of chip removal guide pad opposite flank
Arc chip space, dual chip removal guarantee that all directions chip removal is smooth, to be more advantageous to chip removal.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of the utility model woodwork chit drill.
Specific embodiment
The following examples can make professional and technical personnel that the utility model be more fully understood, but therefore will not
The utility model is limited among the embodiment described range.
Embodiment
The present embodiment woodwork chit drill, as shown in Figure 1, including drillstock 1 and cutting head 2；Cutting head includes three to bore
Centered on arbor line, equidistant radially distributed cutting edge 21；Self tapping spiral shell is provided on the side of each 21 upper end of cutting edge
Groove 211 is provided on each cutting edge side of 211 lower end of tapping screw thread slot and is additionally provided with arc groove 212, and arc groove 212 includes
The lateral arc groove and apex point arc groove set gradually from inside to outside；The cutting edge 21 of 212 lower end of arc groove is equipped with a chip removal
Hole 213, chip-removal hole 213 is interior to be equipped with the chip removal guide pad 214 tilted down along 21 one side of cutting edge, and each chip removal guide pad
214 mutually stagger.
The present embodiment Woodworking flat drill, change Double-blade structure are three sword structures, and faster, cutting is more for the punching meeting of cutting head 2 speed
It is sharp, and increase drilling circularity, meanwhile, it can guarantee uniform force in cutting process, and then guarantee cutting precision；In addition, in arc
Chip-removal hole 213 is had additional on the cutting edge 21 of 212 lower end of shape slot, and is equipped with along 21 side of cutting edge downwards in chip-removal hole 213
Inclined chip removal guide pad 214 can reduce cutting resistance, guarantee that chip removal is smooth, thus improve the service life of Woodworking flat drill.
In embodiment, in order to be more conducive to chip removal, it is changed to dual chip removal, guarantees that all directions chip removal is smooth, i.e., in chip removal
Apex point arc chip space 215 is additionally provided on the cutting edge 21 of 213 upper end side of hole, and apex point arc chip space 215 and chip removal are led
The two sides of cutting edge 21 are separately positioned on to block 214.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.This
The technical staff of industry is retouched in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
That states only illustrates the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model
It will also have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.This is practical new
Type is claimed range and is defined by the appending claims and its equivalent thereof.
Claims (2)
1. a kind of woodwork chit drill, including drillstock and cutting head；It is characterized by: the cutting head includes three with drillstock axis
Centered on line, equidistant radially distributed cutting edge；Tapping screw thread slot is provided on the side of each cutting edge upper end, it is described
It is provided on each cutting edge side of tapping screw thread slot lower end and is additionally provided with arc groove, and the arc groove includes successively setting from inside to outside
The lateral arc groove and apex point arc groove set；The cutting edge of the arc groove lower end is equipped with a chip-removal hole, in the chip-removal hole
Equipped with the chip removal guide pad tilted down along cutting edge one side, and each chip removal guide pad mutually staggers.
2. woodwork chit drill according to claim 1, it is characterised in that: on the cutting edge of chip-removal hole upper end side also
Equipped with apex point arc chip space, and apex point arc chip space and chip removal guide pad are separately positioned on the two sides of cutting edge.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018209355760 | 2018-06-17 | ||
| CN201820935576 | 2018-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209699370U true CN209699370U (en) | 2019-11-29 |
Family
ID=68637849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822264348.8U Active CN209699370U (en) | 2018-06-17 | 2018-12-31 | A kind of woodwork chit drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209699370U (en) |
-
2018
- 2018-12-31 CN CN201822264348.8U patent/CN209699370U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202539643U (en) | Combined drilling and reaming tool special for machining titanium alloy | |
| CN202861476U (en) | High-efficiency high-precision deep hole drill | |
| CN209699370U (en) | A kind of woodwork chit drill | |
| CN108481482A (en) | A kind of woodwork chit drill | |
| CN216421177U (en) | Deep hole straight flute drill bit | |
| CN207534016U (en) | Multi-functional compound step drill | |
| CN205599990U (en) | Integrative boring of high accuracy multiplex step | |
| CN108501142A (en) | A kind of Woodworking flat drill | |
| CN204413237U (en) | Cold depth twist drill in the self-centering of abs valve body whole hard alloy | |
| CN108098083A (en) | Combined tap and drill | |
| CN209851149U (en) | Woodworking flat drill | |
| CN209699372U (en) | A kind of novel timber deep hole processing chit drill | |
| CN209699371U (en) | A kind of timber deep hole processing chit drill | |
| CN203171099U (en) | Drilling and milling screw tap | |
| CN207952723U (en) | A kind of four land thin-walled composite drill bit of two-edged | |
| CN202037379U (en) | Drilling reamer for processing deep hole | |
| CN208825636U (en) | A kind of V-type drill bit for lathe process | |
| CN104690342A (en) | Solid carbide self-centering inner-cooling deep-hole twist drill for ABS valve body | |
| CN205414590U (en) | Reamer | |
| CN214769184U (en) | Hole forming cutter | |
| CN108839158A (en) | A kind of novel timber deep hole processing chit drill | |
| CN203738091U (en) | Auger bit with annular blades | |
| CN108544606A (en) | A kind of timber deep hole processing chit drill | |
| CN103658768A (en) | Forming flat drill | |
| CN209206539U (en) | A kind of drill bit of included chip dividing groove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Hong Inventor before: Wu Hong Inventor before: Fan Junsheng |