CN203197417U - Variable-lead inner-hole threading tool rod - Google Patents
Variable-lead inner-hole threading tool rod Download PDFInfo
- Publication number
- CN203197417U CN203197417U CN 201320207897 CN201320207897U CN203197417U CN 203197417 U CN203197417 U CN 203197417U CN 201320207897 CN201320207897 CN 201320207897 CN 201320207897 U CN201320207897 U CN 201320207897U CN 203197417 U CN203197417 U CN 203197417U
- Authority
- CN
- China
- Prior art keywords
- tool
- hole
- knife bar
- screw
- tool bore
- 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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- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The utility model relates to a tool rod, in particular to a variable-lead inner-hole treading tool rod. the tool rod comprises a tool rod body, a threading tool head, a screw and a tool hole, wherein the tool hole is formed in the tool rod body, the threading tool head is arranged in the tool hole, the screw is placed in the tool rod body, the tool hole is round, and the threading tool head is movably connected with the tool hole. The structure of the tool rod prolongs the service life of a tool and guarantees normal machining of multiple threads, a scrapped central rotating part can be used, waste is turned into wealth, production cost is further saved, economical benefits are improved, and the market competitiveness of enterprises is enhanced.
Description
Technical field
The utility model relates to a kind of knife bar, the variable inner hole thread lathe tool of especially a kind of helical pitch knife bar.
Background technology
Existing threading tool tool bore is square, cutter head can't rotate in square tool bore, when the multi-thread internal thread of processing, because lead angle is larger, we can adopt the larger lathe tool cutter head of relief angle usually, to avoid machining interference, yet, increase the cutter primary clearance and can reduce cutting-tool's used life, the center of scrapping of lathe turns usually and abandons, and causes waste.
The utility model content
The deficiency that can't rotate in order to overcome existing knife bar, the utility model provide the variable inner hole thread lathe tool of a kind of helical pitch knife bar.
The technical scheme that its technical problem that solves the utility model adopts is: the variable inner hole thread lathe tool of a kind of helical pitch knife bar, comprise knife bar, screw thread cutter head, screw and tool bore, be provided with tool bore in the knife bar, be provided with the screw thread cutter head in the tool bore, screw places in the knife bar, and tool bore is circular tool bore.
According to another embodiment of the present utility model, comprise that further screw thread cutter head and tool bore are flexibly connected.
The beneficial effects of the utility model are that this lathe tool lever structure had both increased cutting-tool's used life, guaranteed the normal process of multi start thread, and can utilize again the center of scrapping to turn, turn waste into wealth, further save production cost, increased economic efficiency, strengthened the market competitiveness of enterprise.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of the variable inner hole thread lathe tool of a kind of helical pitch knife bar;
1. knife bars among the figure, 2. screw thread cutter head, 3. screw, 4. tool bore.
The specific embodiment
The structural representation of the variable inner hole thread lathe tool of a kind of helical pitch knife bar such as Fig. 1, the variable inner hole thread lathe tool of a kind of helical pitch knife bar, comprise knife bar 1, screw thread cutter head 2, screw 3 and tool bore 4, be provided with tool bore 4 in the knife bar 1, be provided with screw thread cutter head 2 in the tool bore 4, screw 3 places in the knife bar 1, and tool bore 4 is circular tool bore, and screw thread cutter head 2 is flexibly connected with tool bore 4.
The square tool bore of internal lathe-tool knife bar 1 is made circular tool bore 4, can be polished into threading tool with the centre drill that lathe is scrapped, cooperate with circular tool bore 4, save cost.Circular tool bore 4 can allow screw thread cutter head 2 to rotate in tool bore 4.When the processing multi start thread, because lead angle is larger, threading tool main cutting face may produce with machined surface interferes, and screw thread cutter head 2 can play and increase the tool clearance effect, avoids interfering.The rotation threading tool does not increase the practical back angle of lathe tool, has guaranteed like this wearability of lathe tool, increases cutter life.The impact of rotary cutter double thread thread form is less, does not affect processed form of thread precision.Angle of thread changes formula: α '=arctan (sin β * tan α); α ' is the angle of thread of processed screw thread after the rotation, and α is the angle of thread of lathe tool processed screw thread when not rotating, and β is the anglec of rotation of threading tool.
Claims (2)
1. the variable inner hole thread lathe tool of helical pitch knife bar, comprise knife bar (1), screw thread cutter head (2), screw (3) and tool bore (4), be provided with tool bore (4) in the knife bar (1), be provided with screw thread cutter head (2) in the tool bore (4), screw (3) places in the knife bar (1), it is characterized in that, tool bore (4) is circular tool bore.
2. the variable inner hole thread lathe tool of a kind of helical pitch according to claim 1 knife bar is characterized in that, screw thread cutter head (2) is flexibly connected with tool bore (4), and threading tool cutter head (2) can rotate in tool bore (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320207897 CN203197417U (en) | 2013-04-23 | 2013-04-23 | Variable-lead inner-hole threading tool rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320207897 CN203197417U (en) | 2013-04-23 | 2013-04-23 | Variable-lead inner-hole threading tool rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203197417U true CN203197417U (en) | 2013-09-18 |
Family
ID=49141557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320207897 Expired - Fee Related CN203197417U (en) | 2013-04-23 | 2013-04-23 | Variable-lead inner-hole threading tool rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203197417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110548938A (en) * | 2018-06-01 | 2019-12-10 | 新疆北方建设集团有限公司 | device and method for machining threads on plate-shaped workpiece |
-
2013
- 2013-04-23 CN CN 201320207897 patent/CN203197417U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110548938A (en) * | 2018-06-01 | 2019-12-10 | 新疆北方建设集团有限公司 | device and method for machining threads on plate-shaped workpiece |
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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: 20130918 Termination date: 20190423 |