CN201922059U - Precision boring head - Google Patents
Precision boring head Download PDFInfo
- Publication number
- CN201922059U CN201922059U CN2011200232994U CN201120023299U CN201922059U CN 201922059 U CN201922059 U CN 201922059U CN 2011200232994 U CN2011200232994 U CN 2011200232994U CN 201120023299 U CN201120023299 U CN 201120023299U CN 201922059 U CN201922059 U CN 201922059U
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- China
- Prior art keywords
- boring head
- precision
- feed screw
- screw rod
- precision boring
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- Expired - Fee Related
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Abstract
The utility model relates to a precision boring head, which belongs to the technical field of cutting tools of numerical control machine tools. The precision boring head comprises a boring head main body, wherein a tool shaft is arranged in the boring head main body, one end of the tool shaft is in threaded connection with a feed screw rod, a dial scale is press-fitted and connected with the feed screw rod, a tool holder is fixedly connected with the other end of the tool shaft, and a blade is fixedly connected with the tool holder. The precision boring head is simple in structure and reasonable in design, a high-precision thread processing machine tool is adopted to ensure the processing precision of the tool shaft and the feed screw rod and enable the thread pitch of the tool shaft and the feed screw rod to be 0.2-0.3mm, which is 0.25 most preferentially, and the matching method is further adopted for limiting backlash of the screw rod and the tool shaft at the minimal level. Compared with the conventional product, the precision boring head adopts precision micro-pitch threads, when the dial scale is rotated for regulation, the regulation mechanism of 0.01mm/phi can be conveniently realized, and the operation is simple. Furthermore, the precision boring head can be matched with various foundation handles for realizing high-precision boring processing.
Description
Technical field
The utility model belongs to the cutting tool for CNC machine technical field, is specifically related to a kind of precision boring head.
Background technology
Precision boring head is the core component that is used for fine boring tool in the numerical control tool system, it is one of key factor of decision processing precision of products, the precision boring head of present domestic product, its technological level and product precision are in level 60～seventies basically, can not adapt to the fast development of China's machinery manufacturing industry far away, the supporting main dependence on import of some NC cutting tool manufacturing enterprises, expense is very high, generally about 5000 yuan/.Thereby increased very big burden for enterprise and user.Exploitation and develop high-precision precision boring head, to substitute import imperative.
Compare with the like product of external advanced country, the homemade the most basic problem of precision boring head is that precision is not enough.Principal element is that the quality of fit of feed screw and nut is not enough.Backlash between screw mandrel and the screw thread is big, can not guarantee stabilized accuracy when adjusting size.Fine boring head with the same specification model is compared, and import fine boring head minimal adjustment precision can reach 1 μ m/ φ, and the minimal adjustment precision of domestic product is 2 μ m/ φ, differs one times.
Summary of the invention
At the problem that prior art exists, the purpose of this utility model is to design the technical scheme that a kind of high-precision precision boring head is provided.
Described a kind of precision boring head comprises the boring head main body, it is characterized in that in the boring head main body cutter shaft being set, and the cutter shaft threaded one end connects feed screw, is press-fitted the connection dial on the feed screw, the fixedly connected cutter holder of the other end of cutter shaft, fixedly connected blade on the cutter holder.
Described a kind of precision boring head is characterized in that the thread pitch in the described cutter shaft is 0.2-0.3mm.
Described a kind of precision boring head is characterized in that the thread pitch in the described cutter shaft is 0.25mm.
Described a kind of precision boring head is characterized in that the thread pitch in the described feed screw is 0.2-0.3mm.
Described a kind of precision boring head is characterized in that the thread pitch in the described feed screw is 0.25mm.
Described a kind of precision boring head is characterized in that described cutter holder is fixed on the cutter shaft by the screw that is provided with.
Above-mentioned a kind of precision boring head, simple in structure, reasonable in design, adopt the high precision screw machining tool, guarantee the machining accuracy of cutter shaft and feed screw, make that the thread pitch of cutter shaft and feed screw is 0.2-0.3mm, most preferably be 0.25mm, and adopt and to join the practice, the backlash of screw mandrel and cutter shaft is limited in minimum.Compare with original product, the utility model has adopted accurate microspur screw thread, when rotation scale is regulated, can conveniently realize the regulative mechanism of 0.01mm/ φ, and is easy and simple to handle.And the utility model and all kinds of basic handle be supporting realizes high-precision bore hole processing.
Description of drawings
Fig. 1 is a partial sectional view of the present utility model;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is the enlarged drawing at A place among Fig. 1.
Among the figure: 1-boring head main body; The 2-dial; The 3-feed screw; The 4-cutter shaft; The 5-cutter holder; The 6-screw; The 7-blade.
The specific embodiment
Further specify the utility model below in conjunction with Figure of description.
As shown in the figure, a kind of precision boring head comprises boring head main body 1, cutter shaft 4 is set in the boring head main body 1, one end of cutter shaft 4 is provided with the feed screw hole, and the other end is provided with screw, is provided with the internal thread that pitch is 0.2-0.3 in the feed screw hole, most preferably value is 0.25mm, be provided with the external screw thread that pitch is 0.2-0.3 on the feed screw 3, most preferably value is for 0.25mm, and feed screw 3 and cutter shaft 4 are threaded by cooperating between external screw thread and the internal thread.The other end of feed screw 3 has been equipped with dial 2, and dial 2 concrete set-up modes are: after dial 2 embeds boring head main bodys 1, be press-fitted with the outboard end of feed screw 3 and be connected.
The other end of cutter shaft 4 has been fixed cutter holder 5 by screw 6, has fixedly installed blade 7 on the cutter holder 5, and blade 7 can be selected the type of blade according to operating position.During use, regulate the adjusting that rotation scale 2 realizes processing dimension.
The utility model adopts the high precision screw machining tool, guarantees the machining accuracy of feed screw 3 and cutter shaft 4.The technology of the practice is joined in employing, and the backlash of 4 of feed screw 3 and cutter shafts is limited in minimum, obtains best quality of fit.Adopt feed screw 3 and cutter shaft 4 microspur screw threads, change original thread pitch 0.50mmu into 0.25mm, realize minimal adjustment precision 1 μ m/ φ.
Precision boring head of the present utility model can be realized the processing of high-precision bore hole with all kinds of basic handles are supporting, uses simple, easy to operate.
Shown in the above and the figure only is preferred implementation of the present utility model.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model principle, can also make some modification and improvement, these also should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. precision boring head, comprise boring head main body (1), it is characterized in that being provided with in the boring head main body (1) cutter shaft (4), cutter shaft (4) threaded one end connects feed screw (3), be press-fitted on the feed screw (3) and connect dial (2), the fixedly connected cutter holder of the other end (5) of cutter shaft (4), cutter holder (5) is gone up fixedly connected blade (7).
2. a kind of precision boring head as claimed in claim 1 is characterized in that the thread pitch in the described cutter shaft (4) is 0.2-0.3mm.
3. a kind of precision boring head as claimed in claim 1 is characterized in that the thread pitch in the described cutter shaft (4) is 0.25mm.
4. a kind of precision boring head as claimed in claim 1 is characterized in that the thread pitch in the described feed screw (3) is 0.2-0.3mm.
5. a kind of precision boring head as claimed in claim 1 is characterized in that the thread pitch in the described feed screw (3) is 0.25mm.
6. a kind of precision boring head as claimed in claim 1 is characterized in that described cutter holder (5) is fixed on the cutter shaft (4) by the screw (6) that is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200232994U CN201922059U (en) | 2011-01-25 | 2011-01-25 | Precision boring head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200232994U CN201922059U (en) | 2011-01-25 | 2011-01-25 | Precision boring head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201922059U true CN201922059U (en) | 2011-08-10 |
Family
ID=44425928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200232994U Expired - Fee Related CN201922059U (en) | 2011-01-25 | 2011-01-25 | Precision boring head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201922059U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878399A (en) * | 2014-03-13 | 2014-06-25 | 郑州市钻石精密制造有限公司 | Combined heavy boring cutter |
| CN108326332A (en) * | 2018-04-10 | 2018-07-27 | 浙江甬岭数控刀具有限公司 | High-accuracy multifunctional boring cutter |
-
2011
- 2011-01-25 CN CN2011200232994U patent/CN201922059U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878399A (en) * | 2014-03-13 | 2014-06-25 | 郑州市钻石精密制造有限公司 | Combined heavy boring cutter |
| CN103878399B (en) * | 2014-03-13 | 2016-04-13 | 郑州市钻石精密制造有限公司 | Compound heavy boring cutter |
| CN108326332A (en) * | 2018-04-10 | 2018-07-27 | 浙江甬岭数控刀具有限公司 | High-accuracy multifunctional boring cutter |
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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: 20110810 Termination date: 20140125 |