CN108746668A - A kind of method for fine finishing of helicoid - Google Patents
A kind of method for fine finishing of helicoid Download PDFInfo
- Publication number
- CN108746668A CN108746668A CN201810411967.7A CN201810411967A CN108746668A CN 108746668 A CN108746668 A CN 108746668A CN 201810411967 A CN201810411967 A CN 201810411967A CN 108746668 A CN108746668 A CN 108746668A
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- CN
- China
- Prior art keywords
- helicoid
- cutter
- cutter head
- rotation
- helix
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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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/36—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes
- B23B5/46—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes for turning helical or spiral surfaces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
A kind of method for fine finishing of part helicoid of the present invention, this method is the method for adapting to helicoid lift angle variation finishing helicoid by adjusting cutting tool insert angle, the processing of large pitch helicoid turning thin-walled parts is realized, ensures part processing precision and surface quality.Above design provides a kind of novel turning processes, effectively improve the processing quality of product parts.
Description
Technical field
The invention belongs to a kind of method for fine finishing of helicoid, and in particular to a kind of helix parts with center pipe
Method for fine finishing.
Background technology
Under the premise of meeting strength character, thin-walled parts have many advantages, such as it is light-weight, save material, compact-sized.With
Design and the progress of processing technology, thin-walled parts are more and more to be used.Thin-walled parts are rigidly poor, in process easily
It is deformed and vibrates.To meet such part processing, special process unit and specific machined parameters need to be selected.Large pitch
In helicoid turning thin-walled parts process, there is only the above problems, and there is also caused by the larger helix angle of helicoid
Cutter and part interference situation (design of part is as shown in Fig. 1).It such as avoids interference with, cutting-tool angle is machined to proper angle,
Can extreme influence cutter rigidity, cause knife phenomenon of shaking during accessory turning, surface quality of workpieces poor.These factors cause
Part processing difficulties, qualification rate are relatively low.The present invention is directed to explore a kind of large pitch helicoid turning thin-walled parts process, energy
Under the premise of ensureing cutter rigidity, cutter is avoided to interfere with part；By optimizing cutter and machined parameters, part processing is avoided to become
Shape so that the helix parts processed using this process meet required precision.
Invention content
The purpose of the present invention is surround the zero of large pitch helicoid for center pipe and in center pipe outer tube surface
Part is yielding, rigid structure is weak, finishing when king bolt lift angle accessory turning processing problem.
A kind of method for fine finishing of part helicoid is provided, on numerically-controlled machine tool, part can revolve Cutting tool installation manner in this method
What is turned is mounted on numerically-controlled machine tool；The centre of gyration line of part is the rotation centerline of helicoid, cutter in the method for fine finishing
It installs along the direction vertical with the rotation centerline of helicoid, and is carried out by part rotation and the linear motion of cutting tool insert
Helix is cut；The rotation centerline of cutter head cutting point and helicoid constitutes datum plane；The part has center pipe, and
And form helicoid around center pipe outer tube surface；Definition is longitudinal perpendicular to the direction of datum plane, is parallel to helicoid
The direction of rotation centerline is laterally；Cutter head is cut along each helix of composition helicoid in this method, and in real time
Judge whether the helix angle of the helix in processing is more than the front clearance of cutter, when helix angle is more than the front clearance of cutter
Then perform the following steps：
Step 1: part and cutter head stop motion at this time, and current processing stand position is recorded by numerically-controlled machine tool, it will
It crosses current processing stand and is defined as back knife straight line perpendicular to the straight line of the rotation centerline；Cutter head leaves along time knife straight line works as
Preceding processing stand,
Step 2: cutter is rotated along the axis of itself, rotation angle isIts
Middle P is the helical pitch of the helix in the processing, and D is Central of the parts pipe outer diameter, and π is constant, and ψ 1 is cutter front clearance；Rotation
Afterwards, by being adjusted on the vertical and horizontal so that cutter head is in back on knife straight line；
Add Step 3: cutter head is continued cutting along time current processing stand of knife linear motion back to numerically-controlled machine tool record
Work.
Further, in step 2, longitudinally adjusted value when being adjusted on the vertical and horizontal and value is laterally adjusted
Respectively：
Laterally adjusting value is
Longitudinally adjusted value is
Wherein：D is the radius of turn of cutter head, and H is the preceding fore-and-aft distance between time knife straight line of cutter head rotation.
Further, longitudinal adjustment is realized by the cushion block that installs additional or remove stage makeup and costume.
Further, lateral adjustment is mended parameter by the knife changed in numerically-controlled machine tool and is realized.
Further, the numerically-controlled machine tool is two-axis numerical control lathe.
Technique effect
By this method, the interference between cutter and part can be avoided so that the precision and effect of helix parts are all
It significantly improves.
Description of the drawings
Fig. 1 is the structure sectional view of part；
Fig. 2 is the structural schematic diagram of part.
Specific implementation mode
A kind of method for fine finishing of part helicoid is provided, on numerically-controlled machine tool, part can revolve Cutting tool installation manner in this method
What is turned is mounted on numerically-controlled machine tool；The centre of gyration line of part is the rotation centerline of helicoid, cutter in the method for fine finishing
It is installed along the direction vertical with the rotation centerline, and spiral is carried out by part rotation and the linear motion of cutting tool insert
Line is cut；The rotation centerline of cutter head cutting point and helicoid constitutes datum plane；The part has center pipe, and ring
Helicoid is formed around center pipe outer tube surface；It is longitudinal perpendicular to the direction of datum plane, is parallel to the rotation center of helicoid
The direction of line is laterally；Cutter head is cut along each helix of composition helicoid in this method, and judges processing in real time
In helix helix angle whether be more than cutter front clearance, when helix angle be more than cutter front clearance when then implement such as
Lower step：
Step 1: part and cutter head stop motion at this time, and current processing stand is recorded by numerically-controlled machine tool, it will be excessive
Preceding processing stand and it is defined as back knife straight line perpendicular to the straight line of the rotation centerline；Cutter head leaves current add along knife straight line is returned
Work point,
Step 2: cutter is rotated along the axis of itself, rotation angle isWherein
P is the helical pitch of the helix in the processing, and D is part pipe outer diameter, and π is constant, and ψ 1 is cutter front clearance；After rotation, pass through
It is adjusted on the vertical and horizontal so that cutter head is in back on knife straight line；
Add Step 3: cutter head is continued cutting along time current processing stand of knife linear motion back to numerically-controlled machine tool record
Work.
Further, in step 2, longitudinally adjusted value when being adjusted on the vertical and horizontal and value is laterally adjusted
Respectively：
Laterally adjusting value is
Longitudinally adjusted value is
Wherein：D is the radius of turn of cutter head, and H is the preceding fore-and-aft distance between time knife straight line of cutter head rotation.
Further, longitudinal adjustment is realized by the cushion block that installs additional or remove stage makeup and costume.
Further, lateral adjustment is mended parameter by the knife changed in numerically-controlled machine tool and is realized.
Further, the numerically-controlled machine tool is two-axis numerical control lathe.
Claims (4)
1. a kind of method for fine finishing of part helicoid, Cutting tool installation manner is on numerically-controlled machine tool in this method, the rotatable peace of part
On numerically-controlled machine tool；In the method for fine finishing centre of gyration line of part be helicoid rotation centerline, cutter along with
The direction that the rotation centerline of helicoid is vertical is installed, and passes through linear motion progress helix of the part rotation with cutting tool insert
Cutting；The rotation centerline of cutter head cutting point and helicoid constitutes datum plane；The part has center pipe, and surround
Center pipe outer tube surface forms helicoid；Definition is longitudinal perpendicular to the direction of datum plane, is parallel in the rotation of helicoid
The direction of heart line is laterally；Cutter head is cut along each helix of composition helicoid in this method, and judges to add in real time
Whether the helix angle of the helix in work is more than the front clearance of cutter, then implements when helix angle is more than the front clearance of cutter
Following steps：
Step 1: part and cutter head stop motion at this time, and current processing stand is recorded by numerically-controlled machine tool, it will add after currently
Work point and it is defined as back knife straight line perpendicular to the straight line of the rotation centerline；Cutter head leaves current processing along knife straight line is returned
Point,
Step 2: cutter is rotated along the axis of itself, rotation angle isWherein P is should
The helical pitch of helix in processing, D are part pipe outer diameter, and π is constant, and ψ 1 is cutter front clearance；After rotation, by described
It is adjusted on vertical and horizontal so that cutter head is in back on knife straight line；
Step 3: cutter head is continued machining along the current processing stand for returning knife linear motion back to numerically-controlled machine tool record.
2. a kind of method for fine finishing of part helicoid as described in claim 1, it is characterised in that：It is described vertical in step 2
It is respectively with value is laterally adjusted to longitudinally adjusted value when being adjusted in transverse direction：Laterally adjusting value is
Longitudinally adjusted value isWherein：d
For the radius of turn of cutter head, H is the preceding fore-and-aft distance between time knife straight line of cutter head rotation.
3. a kind of method for fine finishing of part helicoid as claimed in claim 1 or 2, it is characterised in that：Longitudinal adjustment is logical
Cross cushion block realization of installing additional or remove stage makeup and costume.
4. a kind of method for fine finishing of part helicoid as claimed in claim 1 or 2, it is characterised in that：Lateral adjustment is logical
The knife crossed in modification numerically-controlled machine tool is mended parameter and is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810411967.7A CN108746668A (en) | 2018-05-02 | 2018-05-02 | A kind of method for fine finishing of helicoid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810411967.7A CN108746668A (en) | 2018-05-02 | 2018-05-02 | A kind of method for fine finishing of helicoid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108746668A true CN108746668A (en) | 2018-11-06 |
Family
ID=64008989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810411967.7A Pending CN108746668A (en) | 2018-05-02 | 2018-05-02 | A kind of method for fine finishing of helicoid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108746668A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3789708A (en) * | 1971-10-18 | 1974-02-05 | Mccoy E | Thread cutting device |
| CN2448485Y (en) * | 2000-11-13 | 2001-09-19 | 杨友毅 | Equipment for working single screw stem pump |
| CN1535909A (en) * | 2003-04-10 | 2004-10-13 | 尹福康 | Manufacture process of integral helical blade for helical conveyer |
| CN1550277A (en) * | 2003-05-08 | 2004-12-01 | 松下电器产业株式会社 | Non-rotary cutting tool |
| CN2915334Y (en) * | 2006-06-16 | 2007-06-27 | 王隆太 | Cyclone enveloped digital control screw bolt milling machine |
| CN101088682A (en) * | 2006-06-14 | 2007-12-19 | 东芝机械株式会社 | Precision roll turning lathe |
| CN201316814Y (en) * | 2008-12-10 | 2009-09-30 | 葛文军 | Duckbill type universal adjustable cutter |
| CN104057129A (en) * | 2014-07-11 | 2014-09-24 | 二重集团（德阳）重型装备股份有限公司 | Method for finely processing and milling large helical surface |
| CN106292531A (en) * | 2016-09-09 | 2017-01-04 | 西华大学 | Algorithm for calculating profile boundary of ZN1 worm disc-shaped forming cutter |
| CN106407622A (en) * | 2016-11-21 | 2017-02-15 | 哈尔滨理工大学 | Large-pitch thread turning tool design method |
| CN106670752A (en) * | 2016-12-30 | 2017-05-17 | 佛山职业技术学院 | Numerically controlled turning machining technique for screw wheel |
| CN107570768A (en) * | 2017-07-10 | 2018-01-12 | 西北工业大学 | Open type blisk passage multicutter subregion roughing process |
-
2018
- 2018-05-02 CN CN201810411967.7A patent/CN108746668A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3789708A (en) * | 1971-10-18 | 1974-02-05 | Mccoy E | Thread cutting device |
| CN2448485Y (en) * | 2000-11-13 | 2001-09-19 | 杨友毅 | Equipment for working single screw stem pump |
| CN1535909A (en) * | 2003-04-10 | 2004-10-13 | 尹福康 | Manufacture process of integral helical blade for helical conveyer |
| CN1550277A (en) * | 2003-05-08 | 2004-12-01 | 松下电器产业株式会社 | Non-rotary cutting tool |
| CN101088682A (en) * | 2006-06-14 | 2007-12-19 | 东芝机械株式会社 | Precision roll turning lathe |
| CN2915334Y (en) * | 2006-06-16 | 2007-06-27 | 王隆太 | Cyclone enveloped digital control screw bolt milling machine |
| CN201316814Y (en) * | 2008-12-10 | 2009-09-30 | 葛文军 | Duckbill type universal adjustable cutter |
| CN104057129A (en) * | 2014-07-11 | 2014-09-24 | 二重集团（德阳）重型装备股份有限公司 | Method for finely processing and milling large helical surface |
| CN106292531A (en) * | 2016-09-09 | 2017-01-04 | 西华大学 | Algorithm for calculating profile boundary of ZN1 worm disc-shaped forming cutter |
| CN106407622A (en) * | 2016-11-21 | 2017-02-15 | 哈尔滨理工大学 | Large-pitch thread turning tool design method |
| CN106670752A (en) * | 2016-12-30 | 2017-05-17 | 佛山职业技术学院 | Numerically controlled turning machining technique for screw wheel |
| CN107570768A (en) * | 2017-07-10 | 2018-01-12 | 西北工业大学 | Open type blisk passage multicutter subregion roughing process |
Non-Patent Citations (1)
| Title |
|---|
| 张学询等: "《车削疑难问题解》", 30 November 1996 * |
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Application publication date: 20181106 |