CN203227887U - Small-aperture hole saw - Google Patents
Small-aperture hole saw Download PDFInfo
- Publication number
- CN203227887U CN203227887U CN 201320261107 CN201320261107U CN203227887U CN 203227887 U CN203227887 U CN 203227887U CN 201320261107 CN201320261107 CN 201320261107 CN 201320261107 U CN201320261107 U CN 201320261107U CN 203227887 U CN203227887 U CN 203227887U
- Authority
- CN
- China
- Prior art keywords
- rotating cylinder
- small
- axostylus axostyle
- hole
- hole saw
- 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
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
A small-aperture hole saw mainly comprises a rotary drum with an opening in the upper end, and a shaft rod with threads at the top end; a threaded hole is formed in the plane center of the lower end of the rotary drum; the shaft rod is screwed into the threaded hole by the threads at the upper end, and is integrally combined together with the rotary drum; a group of saw teeth are arranged at the edge of the opening of the rotary drum; two adjacent saw teeth are in arc transition; and a scrap discharging hole for discharging scraps is formed in the rotary drum body. The small-aperture hole saw has the characteristics of being simple in structure, high in stability, fast in drilling speed and capable of fast and conveniently discharging the scraps.
Description
Technical field
The utility model relates to a kind of small-bore hole saw.
Background technology
The present hole saw that uses, its structure and size have nothing in common with each other, and in the use of small-bore hole saw, because the rotary speed of hole saw is very fast, fracture or damaged often appears in the sawtooth on the hole saw, influences machining accuracy; And in boring procedure, the scrap of generation is deposited in the rotating cylinder, forms resistance, influences process velocity.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and provides a kind of process velocity fast, can realize getting rid of automatically the small-bore hole saw of scrap.
The purpose of this utility model is achieved by the following technical solution: comprise that mainly the rotating cylinder of a upper end open, a top arrange threaded axostylus axostyle; Described rotating cylinder lower end planar central offers a screwed hole; Described axostylus axostyle is rotatably connected in described screwed hole by the screw thread of its upper end, and in aggregates with described rotating cylinder combination; The opening part edge of described rotating cylinder is provided with one group of sawtooth, and adopts arc transition between the two adjacent sawtooth; Also offer on the described rotating cylinder stack shell for the chip-removal hole of getting rid of scrap.
Also be provided with a limited block on the described axostylus axostyle; Described limited block is arranged on the bottom of axostylus axostyle upper end screw thread.
Described chip-removal hole is two, and is opened in relatively on the rotating cylinder stack shell.
The tail end of described axostylus axostyle is for being used for connecting the joint of drive unit; The cross section of described joint is regular hexagon.
The utlity model has simple in structure, stability height, and penetration rate is fast, gets rid of conveniently characteristics of scrap.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in detail: as shown in Figure 1, comprise that mainly rotating cylinder 1, a top of a upper end open arranges threaded axostylus axostyle 2; Described rotating cylinder 1 lower end planar central offers a screwed hole 3; Described axostylus axostyle 2 is rotatably connected in described screwed hole 3 by the screw thread of its upper end, and in aggregates with described rotating cylinder 1 combination; The opening part edge of described rotating cylinder 1 is provided with one group of sawtooth 4, and adopts arc transition between the two adjacent sawtooth; Also offer on described rotating cylinder 1 stack shell for the chip-removal hole 5 of getting rid of scrap, the length of rotating cylinder 1 is longer, and internal diameter is less, is applicable to the boring of small-bore.
Also be provided with a limited block 6 on the described axostylus axostyle 2; Described limited block 6 is arranged on the bottom of axostylus axostyle 2 upper end screw threads.
Described chip-removal hole 5 is two, and is opened in relatively on rotating cylinder 1 stack shell.
The tail end of described axostylus axostyle 2 is for being used for connecting the joint 7 of drive unit; The cross section of described joint is regular hexagon.
Certainly, above-mentioned explanation is not to restriction of the present utility model, and the utility model also is not limited to above-mentioned giving an example; those skilled in the art; in scope of the present utility model, the variation of making, change and add or replace, all should belong to protection domain of the present utility model.
Claims (4)
1. a small-bore hole saw comprises that mainly the rotating cylinder of a upper end open, a top arrange threaded axostylus axostyle; It is characterized in that: described rotating cylinder lower end planar central offers a screwed hole; Described axostylus axostyle is rotatably connected in described screwed hole by the screw thread of its upper end, and in aggregates with described rotating cylinder combination; The opening part edge of described rotating cylinder is provided with one group of sawtooth, and adopts arc transition between the two adjacent sawtooth; Also offer on the described rotating cylinder stack shell for the chip-removal hole of getting rid of scrap.
2. small-bore according to claim 1 hole saw is characterized in that: also be provided with a limited block on the described axostylus axostyle; Described limited block is arranged on the bottom of axostylus axostyle upper end screw thread.
3. small-bore according to claim 1 hole saw, it is characterized in that: described chip-removal hole is two, and is opened in relatively on the rotating cylinder stack shell.
4. small-bore according to claim 1 hole saw, it is characterized in that: the tail end of described axostylus axostyle is for being used for connecting the joint of drive unit; The cross section of described joint is regular hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320261107 CN203227887U (en) | 2013-05-09 | 2013-05-09 | Small-aperture hole saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320261107 CN203227887U (en) | 2013-05-09 | 2013-05-09 | Small-aperture hole saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203227887U true CN203227887U (en) | 2013-10-09 |
Family
ID=49284036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320261107 Expired - Fee Related CN203227887U (en) | 2013-05-09 | 2013-05-09 | Small-aperture hole saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203227887U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382770A (en) * | 2015-12-08 | 2016-03-09 | 扬州昇业机械有限公司 | Oscillating type switch box tool head |
-
2013
- 2013-05-09 CN CN 201320261107 patent/CN203227887U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382770A (en) * | 2015-12-08 | 2016-03-09 | 扬州昇业机械有限公司 | Oscillating type switch box tool head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203227887U (en) | Small-aperture hole saw | |
| CN203227852U (en) | Novel hole saw | |
| CN202466999U (en) | Reinforcing steel bar mechanical connecting device | |
| CN206028821U (en) | Multi -purpose chamfer sword of combined type | |
| CN202239817U (en) | Three-edge tapered twist drill | |
| CN204610493U (en) | Twoly cut tail tapping screw | |
| CN204064710U (en) | Many diameter drill bits rock core machine for placing | |
| CN204449428U (en) | Chip-removal drill bit in a kind of | |
| CN203905004U (en) | Bidirectional drill bit blade device of deep cement mixing pile machine | |
| CA2708419C (en) | Crack-proof screw | |
| CN203610737U (en) | Multistage drill bit | |
| CN206754104U (en) | A kind of new slotting bolt | |
| CN102847993A (en) | Three-edge taper twist drill | |
| CN204312495U (en) | A kind of screw of wood furniture | |
| CN205462089U (en) | Chuck for puddler | |
| EP2395251A1 (en) | Crack-proof screw | |
| CN203614102U (en) | Helix drum of internal and external helical line lead-changeable coal cutter | |
| CN202991801U (en) | Screw lost-prevention device for actuator | |
| CN206366719U (en) | A kind of not equal portions screw tap | |
| CN202451076U (en) | Spiral borehole prevention spiral stabilizer | |
| CN203316785U (en) | Overturn drilling fixture for two side faces of automobile gearbox body | |
| CN203176118U (en) | Double-layer screw | |
| CN202194582U (en) | Sleeve for being connected with drill | |
| CN203944882U (en) | A kind of hole making drill linkage | |
| CN203347690U (en) | Square-head drill forged piece |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20140509 |