CN201120485Y - Reaming tool bit - Google Patents
Reaming tool bit Download PDFInfo
- Publication number
- CN201120485Y CN201120485Y CNU2007201991543U CN200720199154U CN201120485Y CN 201120485 Y CN201120485 Y CN 201120485Y CN U2007201991543 U CNU2007201991543 U CN U2007201991543U CN 200720199154 U CN200720199154 U CN 200720199154U CN 201120485 Y CN201120485 Y CN 201120485Y
- Authority
- CN
- China
- Prior art keywords
- toolbar
- knife bar
- tool bit
- spring
- tool
- 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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Abstract
Disclosed is a spot-facing tool comprising a toolbar and a tool bit, wherein, the end part of the toolbar is provided with an axial square groove, one end of the tool bit is arranged in the square groove on the toolbar through a pin shaft that can rotate freely, a spring is disposed between the toolbar and the tool bit, one end of the spring is fixed in the square groove on the toolbar, and the other end thereof is fixed at the middle part of the tool bit. The front section of a pump impeller is equipped with a cylindrical inner cavity, the outside diameter of a cylindrical member is matched with the inside diameter of the cylindrical inner cavity, and the cylindrical member is fixedly arranged in the cylindrical inner cavity. The spot-facing tool has the spring and a rotor structure mounted at the end part of the toolbar, and unfolds the tool bit to the working position under the centrifugal force by rotating the cutting tool for implementing the spot-facing process, and the spot-facing tool has advantages of convenient application and high machining efficiency.
Description
Technical field:
The utility model relates to mechanical field, relates in particular to metal-cutting machine tool, the flat cutter of particularly a kind of ream.
Background technology:
In the process of the pump housing, often need carry out the flat processing of ream at the pump housing water inlet flange connecting hole back side, because the cutting position is arranged in the depression position of the pump housing and water inlet flange, cutter can't directly be processed.Prior art adopts a circular knife bar, processes a square hole in its end, makes a cutter head again, during use, arbor holder on the drilling machine chuck, is put in workpiece hole, again cutter head is penetrated knife bar, starts drilling machine, upwards spurs knife bar, carries out the flat processing of ream.But this dedicated tool uses inconvenient, and working (machining) efficiency is not high.
Summary of the invention:
The purpose of this utility model provides the flat cutter of a kind of ream, and the flat cutter of described this ream will solve the flat cutter of special-purpose ream of the prior art and use the technical problem inconvenient, that working (machining) efficiency is low.
The flat cutter of this ream of the present utility model is made of knife bar and cutter head, wherein, described knife bar one end is provided with square groove vertically, be disposed radially bearing pin in the bottom of described square groove, one end of described cutter head is set on the described bearing pin, cutter head is arranged in the square groove of bearing pin upside, is provided with spring between knife bar and the cutter head.
Further, an end of described spring is fixed on the knife bar, and the other end is fixed on the middle part of cutter head.
Operation principle of the present utility model is: knife bar is contained on the chuck of drilling machine.Under the state that chuck does not rotate, cutter head remains in the square groove of knife bar under the spring traction, knife bar, cutter head are extended through workpiece hole, start drilling machine then, under action of centrifugal force, cutter head overcomes spring draft force and opens, and upwards griffes bar then, can finish the flat processing of ream; Close drilling machine after ream is flat, knife bar stops operating, and under the effect of spring draft force, cutter head is packed up to be entered in the knife bar groove, and just can extract knife bar out this moment, finishes whole process.
The utility model and prior art contrast, and its effect is actively with tangible.The utility model is arranged at the knife bar end with spring, rotor structure, rotates by cutter cutter head is launched under action of centrifugal force, to the operating position, carries out the flat processing of ream, and is easy to use, the working (machining) efficiency height.
Description of drawings:
Fig. 1 is the structural representation of the flat cutter of ream of the present utility model.
Schematic diagram when Fig. 2 is the work of the flat cutter of ream of the present utility model.
The specific embodiment:
As depicted in figs. 1 and 2, the flat cutter of ream of the present utility model is made of knife bar 1 and cutter head 2, wherein, be provided with square groove vertically in described knife bar 1 end, described cutter head 2 one ends are arranged in the square groove on the described knife bar 1 by bearing pin free to rotate 3, are provided with spring 4 between described knife bar 1 and the described cutter head 2.
Further, described spring 4 one ends are fixed in the square groove on the described knife bar 1, and the other end is fixed in the middle part of described cutter head 2.
Concrete, knife bar 1 one ends are fixed on the chuck 5 of drilling machine, and when starting drilling machine, under action of centrifugal force, cutter head 2 overcomes spring 4 power and opens, and upwards griffe bar 1 then, can finish the flat processing of ream to workpiece 6; Close drilling machine after ream is flat, knife bar 1 stops operating, and under the effect of spring 4 power, cutter head 2 is packed up to be entered in the knife bar groove, and just can extract knife bar 1 out this moment, finishes whole process.
Claims (2)
1. flat cutter of ream, constitute by knife bar and cutter head, it is characterized in that: described knife bar one end is provided with square groove vertically, be disposed radially bearing pin in the bottom of described square groove, one end of described cutter head is set on the described bearing pin, cutter head is arranged in the square groove of bearing pin upside, is provided with spring between knife bar and the cutter head.
2. the flat cutter of ream as claimed in claim 1 is characterized in that: an end of described spring is fixed on the knife bar, and the other end is fixed on the middle part of cutter head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201991543U CN201120485Y (en) | 2007-12-12 | 2007-12-12 | Reaming tool bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201991543U CN201120485Y (en) | 2007-12-12 | 2007-12-12 | Reaming tool bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201120485Y true CN201120485Y (en) | 2008-09-24 |
Family
ID=40007705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201991543U Expired - Fee Related CN201120485Y (en) | 2007-12-12 | 2007-12-12 | Reaming tool bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201120485Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608016A (en) * | 2013-06-16 | 2015-05-13 | 王振环 | Drill bit for drilling convex hole |
| CN114559077A (en) * | 2022-03-14 | 2022-05-31 | 贵阳博亚机械制造有限公司 | Tool for facing machining of narrow-cavity inner groove hole and machining method |
-
2007
- 2007-12-12 CN CNU2007201991543U patent/CN201120485Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608016A (en) * | 2013-06-16 | 2015-05-13 | 王振环 | Drill bit for drilling convex hole |
| CN114559077A (en) * | 2022-03-14 | 2022-05-31 | 贵阳博亚机械制造有限公司 | Tool for facing machining of narrow-cavity inner groove hole and machining method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |