CN203565893U - Adjustable boring cutter used for finish machining - Google Patents
Adjustable boring cutter used for finish machining Download PDFInfo
- Publication number
- CN203565893U CN203565893U CN201320780804.9U CN201320780804U CN203565893U CN 203565893 U CN203565893 U CN 203565893U CN 201320780804 U CN201320780804 U CN 201320780804U CN 203565893 U CN203565893 U CN 203565893U
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- CN
- China
- Prior art keywords
- accommodating cavity
- cutting tip
- voussoir
- adjustable boring
- depth direction
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses an adjustable boring cutter used for finish machining. The adjustable boring cutter comprises a cutter body, a cutting blade and an adjusting unit, wherein a containing cavity is formed in the cutter body, the adjusting unit comprises an adjusting wedge sleeved in the containing cavity and a driving part capable of driving the adjusting wedge to linearly move along the depth direction of the containing cavity, a wedge-shaped surface, which is at a certain inclined angle with the depth direction of the containing cavity, is arranged on one side, which is close to the cutting blade, of the adjusting wedge, and an inclined plane, which is wedged to the wedge-shaped surface, is arranged on the cutting blade. The adjustable boring cutter has the advantages of high adjustment precision, long service life, and capability of improving the cutting stability and the processing precision.
Description
Technical field
The utility model relates to metal cutting technology field, relates in particular to a kind of for accurately machined adjustable boring tool.
Background technology
For the cutter of metal processing, especially, under boring processing operating mode, the diameter of cutter directly affects the final size of product now.Along with the technology of metal manufacture field is constantly soaring, the dimensional requirement of hole class workpiece to be machined is more and more higher, it is very common already that hole type parts machining tolerance reaches the tolerance grade grade of H6 level now, and want to reach this kind of level with current cutter manufacturing technology level, need to pay a lot of effort and just can reach, so adjustable structure arises at the historic moment.By adjustable structure, artificially tool diameter is adjusted in any margin of tolerance, therefore greatly reduced the making required precision of cutter.
The patent No. is that the utility model patent of ZL02823553.3 discloses a kind of adjustable structure.It strains distending to adjust front and back two parts that part groove is cut apart by adjustment with the screw of the conical surface, finally adjusts part rear portion and tool matrix and joins, thereby force the anterior mobile effect that finally reaches the minute movement of driving and the anterior blade that joins.This patent can blade be carried out the adjustment of microcosmic position really, but this patent is in course of adjustment to be actually and adjusts the relative screwed hole generation of screw deflection deformation, it is not and adjustment part Surface Contact completely can only be loop wire contact that thereby the conical surface of screw is adjusted in order.The anterior result of simultaneously adjusting screw-driven adjustment part is to make anterior generation upset be out of shape, and finally making the side-locating face of blade and the front portion of adjustment part contact is also straight line contact.To sum up, the be in course of adjustment way of contact of all parts of the structure that this patent is announced is all line contact, thereby the microdeformation that makes blade occur repeatedly in metal cutting process moves, and finally affects the service life of blade.Driving distortion due to this adjustment structure is all that amount of deflection changes simultaneously, and nonlinear change, also just determined can not obtain identical deflection at the adjustment screw interval of rotation equal angular, thereby make actual adjusting operation personnel cannot estimate accurately the adjustment amount of movement that its adjustment behavior produces, thereby reduced adjustment precision.
Patent publication No. is EP1213081(A1) utility model patent a kind of adjustable structure is disclosed.It drives the movement of cutting tip with the wedge of cylinder tail end by dowel screw adjustment.Thereby reach the object of adjusting tool diameter.But in bore hole class fine finishining field, because allowance for finish is less and indivedual operating modes are subject to space requirement, selected cutting tip stock size is less, and comparatively common selects blade lengths generally at 6.35mm, and thickness is generally 2.38mm.And the bottom of adjusting the contact-making surface of original paper and cutting tip in the patent that EP1213081 (A1) announces is vacant state, this vacant state does not have distinct disadvantage in the cutting tip of normal thick, but when being applied to accurately machined little thin cutting tip, thickness in the vertical short transverse of this contact-making surface is general also less, thereby in cutting tip compaction process, be subject to vacant state to affect easy generation deflection deformation, final order is adjusted original paper and is contacted as curve contact with cutting tip is actual, thereby the microdeformation that makes blade occur repeatedly in metal cutting process moves, the final machining accuracy that affects, affect the service life of blade simultaneously.
Utility model content
The technical problems to be solved in the utility model is: the deficiency existing for prior art, provide a kind of and adjust that precision is high, long service life, can improve cutting stability and machining accuracy for accurately machined adjustable boring tool.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of for accurately machined adjustable boring tool, comprise cutter body, cutting tip and adjustment unit, described cutter body is provided with accommodating cavity, described adjustment unit comprises the adjustment voussoir being sheathed in accommodating cavity and can drive adjusts voussoir along the actuator of accommodating cavity depth direction traveling priority, described adjustment voussoir is provided with the lozenges in a certain angle with accommodating cavity depth direction near a side of cutting tip, and described cutting tip is provided with the inclined plane with lozenges wedging.
Further improvement as technique scheme:
Described accommodating cavity is equilateral triangle die cavity, and described adjustment voussoir is equilateral triangle cylinder, and described lozenges is located on a wherein side of equilateral triangle cylinder.
Described actuator is the dowel screw of installing along accommodating cavity depth direction, and described dowel screw has two sections of thread segments that thread rotary orientation is contrary, and one section of thread segment is spirally connected with adjusting voussoir, and another section of thread segment and cutter body are spirally connected.
The blade pressing screw in compression that described cutting tip passes through to install along accommodating cavity depth direction is on cutter body.
Compared with prior art, the utility model has the advantage of:
1, the utility model is that continuous equivalent changes by adjusting the rectilinear motion of voussoir and the wedge-like engagement of adjusting voussoir and cutting tip, not only having realized adjustment variable, can accurately calculate adjustment amount of movement, adjusts precision high; While can guarantee to adjust voussoir and cutting tip is always plane contact, improves cutting stability and machining accuracy, the service life of finally improving cutting tip;
2, accommodating cavity of the present utility model is equilateral triangle chamber, and adjusting voussoir is equilateral triangle main body, simple in structure, be convenient to make, processing cost is low, and is easy to guarantee to adjust the rectilinear motion of voussoir and the wedge-like engagement of adjusting voussoir and cutting tip.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 is the exploded view of adjustment unit in the utility model.
Fig. 3 is the fit structure schematic diagram of the utility model adjustment unit and cutting tip.
Marginal data: 1, cutter body; 11, accommodating cavity; 2, cutting tip; 21, inclined plane; 3, adjustment unit; 31, adjust voussoir; 311, lozenges; 32, dowel screw; 321, the first thread segment; 322, the second thread segment; 4, blade pressing screw.
The specific embodiment
Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail; should be understood that; protection domain of the present utility model is also not only confined to following embodiment; for those skilled in the art; some improvements and modifications not departing under the utility model principle prerequisite, also should be considered as protection domain of the present utility model.
As shown in Figure 1, Figure 2, Figure 3 shows, the present embodiment for accurately machined adjustable boring tool, comprise cutter body 1, cutting tip 2 and adjustment unit 3, cutter body 1 is provided with cutter groove, cutting tip 2 and adjustment unit 3 are all installed in cutter groove.Cutter groove bottom offers accommodating cavity 11, and adjustment unit 3 comprises the adjustment voussoir 31 being sheathed in accommodating cavity 11 and can drive adjusts voussoir 31 along the actuator of accommodating cavity 11 depth direction traveling priorities.Adjustment voussoir 31 is provided with the lozenges 311 in a certain angle with accommodating cavity 11 depth directions near a side of cutting tip 2, and cutting tip 2 is provided with the inclined plane 21 with lozenges 311 wedgings.
In the present embodiment, actuator is the dowel screw 32 of installing along accommodating cavity 11 depth directions, dowel screw 32 has the first thread segment 321 and 322 two sections of thread segments of the second thread segment, the thread rotary orientation of two sections of thread segments is contrary, and the first thread segment 321 is spirally connected with adjusting voussoir 31, the second thread segment 322 is spirally connected with cutter body 1.By twisting dowel screw 32, can make to adjust voussoir 31 along the depth direction traveling priority of accommodating cavity 11.β in a certain angle between the central axis C 1 of dowel screw 32 and lozenges 311, β is greater than zero.
In the present embodiment, accommodating cavity 11 is equilateral triangle die cavity, adjusts voussoir 31 for to be embedded in the equilateral triangle cylinder in triangle die cavity, and lozenges 311 is located on a wherein side of equilateral triangle cylinder.This structure is easy to guarantee to adjust the rectilinear motion of voussoir 31 and the wedge-like engagement of adjusting voussoir 31 and cutting tip 2, also can limit the rotation of adjusting voussoir 31 simultaneously.
In the present embodiment, cutting tip 2 is pressed in cutter groove bottom by the blade pressing screw 4 of installing along accommodating cavity 11 depth directions and cutter groove bottom is fitted.
During use, by twisting dowel screw 32, drive adjustment voussoir 31 to move along accommodating cavity 11 depth directions, adjust voussoir 31 by the inclined plane 21 of lozenges 311 extruding cutting tips 2, make cutting tip 2 produce transverse shifting; When oppositely twisting dowel screw 32, can realize the reverse movement of cutting tip 2.Owing to adjusting voussoir 31, by dowel screw 32, drive and make traveling priority, the rotational angle of dowel screw 32 is directly proportional to the straight-line displacement of adjusting voussoir 31, and cutting tip 2 and the relative motion of adjusting between voussoir 31 meet wedge shape shifting principle, therefore, rotational angle by dowel screw 32 just can accurately calculate the jitter values of cutting tip 2, thereby the progressive adjustment of the equivalence of realizing cutting tip 2, finally reaches the object that improves machining accuracy.
Claims (5)
1. one kind for accurately machined adjustable boring tool, comprise cutter body (1), cutting tip (2) and adjustment unit (3), it is characterized in that: described cutter body (1) is provided with accommodating cavity (11), described adjustment unit (3) comprises being sheathed on the adjustment voussoir (31) in accommodating cavity (11) and can driving adjusts voussoir (31) along the actuator of accommodating cavity (11) depth direction traveling priority, described adjustment voussoir (31) is provided with the lozenges (311) in a certain angle with accommodating cavity (11) depth direction near a side of cutting tip (2), described cutting tip (2) is provided with the inclined plane (21) with lozenges (311) wedging.
2. according to claim 1 for accurately machined adjustable boring tool, it is characterized in that: described accommodating cavity (11) is equilateral triangle die cavity, described adjustment voussoir (31) is equilateral triangle cylinder, and described lozenges (311) is located on a wherein side of equilateral triangle cylinder.
3. according to claim 1 and 2 for accurately machined adjustable boring tool, it is characterized in that: the dowel screw (32) of described actuator for installing along accommodating cavity (11) depth direction, described dowel screw (32) has two sections of thread segments that thread rotary orientation is contrary, and one section of thread segment is spirally connected with adjusting voussoir (31), another section of thread segment and cutter body (1) are spirally connected.
4. according to claim 1 and 2 for accurately machined adjustable boring tool, it is characterized in that: described cutting tip (2) is pressed on cutter body by the blade pressing screw (4) of installing along accommodating cavity (11) depth direction.
5. according to claim 3 for accurately machined adjustable boring tool, it is characterized in that: described cutting tip (2) is pressed on cutter body by the blade pressing screw (4) of installing along accommodating cavity (11) depth direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320780804.9U CN203565893U (en) | 2013-12-03 | 2013-12-03 | Adjustable boring cutter used for finish machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320780804.9U CN203565893U (en) | 2013-12-03 | 2013-12-03 | Adjustable boring cutter used for finish machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203565893U true CN203565893U (en) | 2014-04-30 |
Family
ID=50533652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320780804.9U Withdrawn - After Issue CN203565893U (en) | 2013-12-03 | 2013-12-03 | Adjustable boring cutter used for finish machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203565893U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658701A (en) * | 2013-12-03 | 2014-03-26 | 株洲钻石切削刀具股份有限公司 | Adjustable boring tool for finishing work |
| CN105234440A (en) * | 2015-10-29 | 2016-01-13 | 株洲钻石切削刀具股份有限公司 | Cutter with adjustable cutting blade position |
| CN105328224A (en) * | 2015-11-17 | 2016-02-17 | 株洲钻石切削刀具股份有限公司 | Rotary machining cutter |
-
2013
- 2013-12-03 CN CN201320780804.9U patent/CN203565893U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658701A (en) * | 2013-12-03 | 2014-03-26 | 株洲钻石切削刀具股份有限公司 | Adjustable boring tool for finishing work |
| CN105234440A (en) * | 2015-10-29 | 2016-01-13 | 株洲钻石切削刀具股份有限公司 | Cutter with adjustable cutting blade position |
| CN105234440B (en) * | 2015-10-29 | 2017-06-20 | 株洲钻石切削刀具股份有限公司 | A kind of adjustable cutting tool in cutting tip position |
| CN105328224A (en) * | 2015-11-17 | 2016-02-17 | 株洲钻石切削刀具股份有限公司 | Rotary machining cutter |
| CN105328224B (en) * | 2015-11-17 | 2017-12-26 | 株洲钻石切削刀具股份有限公司 | Rotary machining tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140430 Effective date of abandoning: 20170111 |