CN201579852U - Inverted conical woodworking spiral drill - Google Patents
Inverted conical woodworking spiral drill Download PDFInfo
- Publication number
- CN201579852U CN201579852U CN2009202145616U CN200920214561U CN201579852U CN 201579852 U CN201579852 U CN 201579852U CN 2009202145616 U CN2009202145616 U CN 2009202145616U CN 200920214561 U CN200920214561 U CN 200920214561U CN 201579852 U CN201579852 U CN 201579852U
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- drill body
- drill
- cutting edge
- apex point
- woodworking
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- Expired - Lifetime
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Abstract
The utility model relates to an inverted conical woodworking spiral drill, comprising a drill body; a drill bit is arranged at the middle part of the top part of the drill body; the side edge of the drill bit is provided with a main cutting edge; a circumference cutting edge is arranged at the excircle of the main cutting edge; the drill body is provided with at least one spiral chip-discharging groove; and the drill body is connected with a drill rod which is connected with a drill handle. The inverted conical woodworking spiral drill is characterized in that the drill body is a conical drill body. When the spiral drill provided by the utility model is used for drilling holes, the gap between the drill body and the hole wall is enlarged gradually from front to back, no friction exists between the drill body and the hole wall in the process of drilling holes, the cutting chip also can not block, the process of drilling holes is carried out smoothly and continuously, the working efficiency is high and the power loss is little.
Description
Technical field
The utility model relates to a kind of carpenter, is used for holing on nonmetallic materials such as timber, plastics, rubber.
Background technology
Drilling deep hole on timber generally adopts carpenter's auger.At present used carpenter's auger as shown in Figure 1, comprise drill body 1, apex point 2 is located at the crown center of cylindrical drill body 1, side at apex point 2 is provided with main cutting edge 3, circumference cutting edge 4 is located at the cylindrical place of main cutting edge 3, one or two spirality chip areas 5 are arranged on drill body 1, drill body 1 jointed rod 6, drilling rod 6 connects drillstock 7.Because drill body 1 is columniform, in boring procedure, almost there is not the space between drill body 1 and the hole wall, drill body 1 is serious with the hole wall friction, and drilling cuttings is when spirality chip area 5 is discharged backward, and blockage phenomenon is easily stopped up when serious, even stuck drill bit.Therefore in boring procedure, must often withdraw from drill bit, remove the plug bits, could continue boring.Inefficiency, the drill bit heating is serious, and power consumption is big, deficiency in economic performance.
Summary of the invention
The purpose of this utility model provides a kind of being difficult for and stops up in boring procedure, successfully one-time continuous gets out the carpenter's auger of deep hole.
In order to achieve the above object, the technical solution of the utility model has provided a kind of back taper carpenter's auger, comprise drill body, apex point is located at the crown center of drill body, is provided with main cutting edge at the side of apex point, the circumference cutting edge is located at the cylindrical place of main cutting edge, at least one spirality chip area is arranged on drill body, the drill body jointed rod, drilling rod connects drillstock, it is characterized in that drill body is conical drill body.
Described apex point is tapered thread or rectangular pyramid shape apex point.
When the auger that utilizes the utility model to provide was holed, the space between drill body and the hole wall increased from front to back gradually, not friction between drill body and the hole wall in the process of boring, smear metal can not gambled plug yet, boring procedure successfully carries out continuously, high efficiency, and power consumption is little.
Description of drawings
Fig. 1 is the structural representation of former carpenter's auger;
The structural representation of a kind of back taper carpenter's auger that Fig. 2 provides for the utility model;
Fig. 3 is the structural representation of the back taper carpenter's auger of rectangular pyramid shape apex point for apex point.
The specific embodiment
Specify the utility model below in conjunction with embodiment.
Embodiment
As shown in Figure 2, the structural representation of a kind of back taper carpenter's auger that provides for the utility model, comprise drill body, apex point 2 is located at the crown center of drill body, is provided with main cutting edge 3 at the side of apex point 2, and circumference cutting edge 4 is located at the cylindrical place of main cutting edge 3, two spirality chip areas 5 are arranged on drill body, drill body jointed rod 6, drilling rod 6 connects drillstock 7, and drill body is conical drill body 8.
Apex point 2 can be tapered thread or rectangular pyramid shape apex point 9 as shown in Figure 3.
During work, drillstock 7 is clamped in the chuck of drilling machine or electric hand drill, apex point 2 is aimed at by the boring center, start drilling machine or electric hand drill, apply axial compressive force, apex point 2 just pierces in the material, subsequently circumference cutting edge 4 contact materials, on material, mark a circle, and progressively cut off along this bundle of circles material.Main cutting edge 3 forms a circular hole to material removal in the circle then, and the material chip under the excision is outside spirality chip area 5 taps.Because drill body is a back taper, space between drill body and the hole wall increases from front to back gradually, do not stop up so chip removal is unobstructed, also not contact friction between drill body and the hole wall, in boring procedure, must not drop by the wayside drill bit, remove the plug bits, but can wear hole drill to one-time continuous, increase work efficiency, power consumption has also reduced.
Claims (2)
1. back taper carpenter's auger, comprise drill body, apex point (2) is located at the crown center of drill body, side at apex point (2) is provided with main cutting edge (3), and circumference cutting edge (4) is located at the cylindrical place of main cutting edge (3), and at least one spirality chip area (5) is arranged on drill body, drill body jointed rod (6), drilling rod (6) connects drillstock (7), it is characterized in that drill body is conical drill body (8).
2. a kind of back taper carpenter's auger as claimed in claim 1 is characterized in that, described apex point (2) is tapered thread or rectangular pyramid shape apex point (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202145616U CN201579852U (en) | 2009-12-01 | 2009-12-01 | Inverted conical woodworking spiral drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202145616U CN201579852U (en) | 2009-12-01 | 2009-12-01 | Inverted conical woodworking spiral drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201579852U true CN201579852U (en) | 2010-09-15 |
Family
ID=42721845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202145616U Expired - Lifetime CN201579852U (en) | 2009-12-01 | 2009-12-01 | Inverted conical woodworking spiral drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201579852U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102335938A (en) * | 2011-09-22 | 2012-02-01 | 浙江野牛工具有限公司 | Machine-purposed woodworking drill with identification cover |
| CN103659962A (en) * | 2013-12-12 | 2014-03-26 | 浙江野牛工具有限公司 | Nail-cutting wood drill |
| CN103831458A (en) * | 2012-11-27 | 2014-06-04 | 创国兴业有限公司 | Inverted cone drill bit structure |
| CN105927158A (en) * | 2016-04-26 | 2016-09-07 | 郭玉 | Portable-type drill bit of twist drill |
| CN107138772A (en) * | 2017-05-22 | 2017-09-08 | 江苏骏成工具有限公司 | One kind positioning drill bit |
-
2009
- 2009-12-01 CN CN2009202145616U patent/CN201579852U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102335938A (en) * | 2011-09-22 | 2012-02-01 | 浙江野牛工具有限公司 | Machine-purposed woodworking drill with identification cover |
| CN103831458A (en) * | 2012-11-27 | 2014-06-04 | 创国兴业有限公司 | Inverted cone drill bit structure |
| CN103659962A (en) * | 2013-12-12 | 2014-03-26 | 浙江野牛工具有限公司 | Nail-cutting wood drill |
| CN105927158A (en) * | 2016-04-26 | 2016-09-07 | 郭玉 | Portable-type drill bit of twist drill |
| CN107138772A (en) * | 2017-05-22 | 2017-09-08 | 江苏骏成工具有限公司 | One kind positioning drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100915 |
|
| CX01 | Expiry of patent term |