CN100540186C - The processing method of numerical control turning tapered piston annular conical surface - Google Patents
The processing method of numerical control turning tapered piston annular conical surface Download PDFInfo
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- CN100540186C CN100540186C CNB2005100476343A CN200510047634A CN100540186C CN 100540186 C CN100540186 C CN 100540186C CN B2005100476343 A CNB2005100476343 A CN B2005100476343A CN 200510047634 A CN200510047634 A CN 200510047634A CN 100540186 C CN100540186 C CN 100540186C
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- lathe
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- mandrel
- shaped piston
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Abstract
The invention discloses a kind of processing method of numerical control turning tapered piston annular conical surface, several cone-shaped piston rings [2] fixed interval on mandrel [4], is supported on mandrel [4] on the main shaft of lathe.With at least two process tools [5] clamping on lathe saddle, the spacing of process tool [5] is the integral multiple that is distributed in the spacing and cone-shaped piston ring [4] the thickness sum of the cone-shaped piston ring [2] on the mandrel [4], described lathe is the numerically controlled lathe of adding a three-dimensional on traditional lathe basis, the main shaft angulation of the direction of motion of three-dimensional and lathe is 1.75 °, and described knife rest is contained on the three-dimensional.The drive unit of lathe drives X, the Z axle is done the upper slitter action, and when point of a knife contacted with the big termination of cone-shaped piston ring, drive unit drove three-dimensional and drives knife rest along being the conical surface that tapered pistons are processed in 1.75 ° of direction feeds with main shaft; Drive unit drives X, the Z axle is done the cutter relieving action, and three-dimensional is back to original position, and the big holder of Z axle action drive lathe is pulled and moved forward to next piston ring position, repeats above-mentioned action, until the conical surface that processes all cone-shaped piston rings on the mandrel [4].
Description
Technical field:
The present invention relates to a kind of processing method of piston ring, particularly a kind of processing method of numerical control turning tapered piston annular conical surface.
Background technology:
Have in the piston ring that on engine, uses that ring surface is taper, i.e. cone-shaped piston ring outside the class.The appearance conical surface roughness of this cone-shaped piston ring is R
ZTo reach this requirement be the comparison difficulty in processing on engine lathe, adopts the processing of grinding process method to guarantee, but consider that the piston ring PR is bigger, too low with grinding process machining piston ring production efficiency, do not guarantee the large batch of production of piston ring.Therefore, come the machining piston ring with the numerically controlled lathe turning process, for mill, its production efficiency can improve greatly with car.On numerically controlled lathe, the minimum Moving Unit of cutter is a pulse equivalency, uses the numerically controlled lathe turning conical surface of two coordinates usually, and during the processing conical surface, the movement locus of cutter is actually broken line, rather than desirable straight line.Cutter can not can only approach oblique line with dog-leg path strictly along the diagonal movement of being processed like this.As mentioned above, the numerically controlled lathe of two coordinates can be drawn, when the conical surface of turning piston ring, the turning of the conical surface can be finished by linear interpolation.But, the surface of turning is amplified, the track that cutter is walked promptly is a kind of broken line as ladder.The length of a little broken line is a pulse equivalency, and when pulse equivalency was 0.005 millimeter, little broken line was exactly 0.005 millimeters long.Because it is tighter that the roughness of the piston ring conical surface requires, when numerical control pulse equivalency when not being very little, owing to the reason (influence of little broken line) of interpolation will directly influence the roughness of the conical surface.If pulse equivalency is very little, can be beneficial to the roughness of improving the conical surface, and for numerically controlled lathe, because mechanical transmission structure sensitivity restriction can not be satisfied little pulse equivalency transmission requirement without end, necessarily require mechanical mechanism sensitivity higher if satisfy, this will bring great difficulty to manufacturing, and manufacturing cost also can improve greatly.
Summary of the invention:
The purpose of this invention is to provide that a kind of process velocity is fast, efficient is high, production cost is low, cutter do not have the processing method of broken line, numerical control turning tapered piston annular conical surface that machining accuracy is high along three-dimensional rectilinear motion, finished surface, overcomes the deficiencies in the prior art.
The technology scheme of separating of the present invention is: a kind of processing method of numerical control turning tapered piston annular conical surface is characterized in that: comprise the steps:
A, several cone-shaped piston rings 2 are fixed on the mandrel 4, the spacing between each cone-shaped piston ring 2 is identical and be provided with gasket ring 1, and an end of mandrel 4 is contained on the main shaft of lathe for machining, and the other end of mandrel 4 leans with the tailstock center 3 of lathe;
B, with at least two process tool 5 clampings on lathe saddle, the spacing of process tool 5 is the integral multiples that are distributed in the spacing and the cone-shaped piston ring 4 thickness sums of the cone-shaped piston ring 2 on the mandrel 4, described lathe is the numerically controlled lathe of adding a three-dimensional on traditional two coordinate numerically controlled lathe bases with X, Z axle, the main shaft angulation of the direction of motion of three-dimensional and lathe is 1.75 °, and described knife rest is contained on the three-dimensional;
The drive unit of c, lathe drives X, the Z axle is done the upper slitter action, and when point of a knife contacted with the big termination of cone-shaped piston ring, drive unit drove three-dimensional and drives knife rest along being the conical surface that tapered pistons are processed in 1.75 ° of direction feeds with main shaft;
D, drive unit drive X, the Z axle is done the cutter relieving action, and three-dimensional is back to original position, and the big holder of Z axle action drive lathe is pulled and moved forward to next piston ring position, repeats above-mentioned action, until the conical surface that processes all cone-shaped piston rings on the mandrel 4;
Described X-axis be above saddle along lathe laterally with respect to the saddle moving direction of upper slide rest movably, described Z axle is along the vertical saddle moving direction movably of lathe.
The present invention compared with prior art has following advantage: because several cone-shaped piston rings 2 are fixed on the mandrel 4, spacing between each cone-shaped piston ring 2 is identical and be provided with gasket ring 1, one end of mandrel 4 is contained on the main shaft of lathe for machining, the other end of mandrel 4 leans with the tailstock center 3 of lathe, and cutter is processed a plurality of piston rings simultaneously with being fixed on many on the knife rest, so this method process velocity is fast, efficient is high, production cost is low; When the processing conical surface, because cutter only moves along the three-dimensional direction, changed broken line move mode of the prior art, improved machining accuracy greatly, overcome the deficiencies in the prior art.
Description of drawings:
Fig. 1 is the structural representation of cone-shaped piston ring;
Fig. 2 is that cone-shaped piston ring 2 clampings reach the distribution schematic diagram of cutter 5 on knife rest on mandrel 4.
The specific embodiment:
As shown in the figure: 1, earlier several (present embodiment selects 21) cone-shaped piston rings 2 are fixed on the mandrel 4, the spacing between each cone-shaped piston ring 2 is identical and be provided with gasket ring 1, and the termination is fixed with nut 6 and mandrel 4 thread connection.One end of mandrel 4 is contained on the main shaft of lathe for machining, and the other end of mandrel 4 leans with the tailstock center 3 of lathe;
2, with at least two (present embodiment selects 3) process tool 5 clampings on lathe saddle, its fixed form is with single identical the fixed form of cutter, the spacing of process tool 5 is the integral multiples that are distributed in the spacing and the cone-shaped piston ring 4 thickness sums of the cone-shaped piston ring 2 on the mandrel 4, described lathe is at traditional X that has, add the numerically controlled lathe of a three-dimensional on the two coordinate numerically controlled lathe bases of Z axle, the main shaft angulation of the direction of motion of three-dimensional and lathe is 1.75 °, two coordinates of promptly existing numerically controlled lathe be along lathe vertically movably big palette (Z axle) and above big palette along lathe laterally with respect to the movably little supporting plate of big palette (X-axis), described three-dimensional is that a knife rest supporting plate that becomes 1.75 ° of angles to move with respect to little supporting plate with lathe spindle also is housed on little supporting plate, described knife rest is contained on the knife rest supporting plate, and the knife rest supporting plate is identical with the connecting mode between little supporting plate and the big palette with the connecting mode of little supporting plate;
3, the drive unit of lathe drives X, the Z axle is done the upper slitter action, when point of a knife contacts with the big termination of cone-shaped piston ring, X, Z axle stop, drive unit drives three-dimensional and drives knife rest supporting plate and knife rest, cutter along being the conical surface of 1.75 ° of direction feeds processing tapered pistons with main shaft, this moment, cutter was a rectilinear motion, had avoided the broken line interpolation;
4, (after being the conical surface of straight-line cutter completion of processing workpiece) drive unit drove X after previous step was finished suddenly, the Z axle is done the cutter relieving action, three-dimensional (knife rest supporting plate) is back to original position, the big holder of Z axle action drive lathe is pulled and is moved forward to next piston ring position, repeat above-mentioned action, until the conical surface that processes all cone-shaped piston rings on the mandrel 4.
Above-described X-axis be above saddle along lathe laterally with respect to the saddle moving direction of upper slide rest movably, described Z axle is along the vertical saddle moving direction movably of lathe.
Claims (1)
1, a kind of processing method of numerical control turning tapered piston annular conical surface is characterized in that: comprise the steps:
A, several cone-shaped piston rings [2] are fixed on the mandrel [4], the spacing between each cone-shaped piston ring [2] is identical and be provided with gasket ring [1], and an end of mandrel [4] is contained on the main shaft of lathe for machining, and the other end of mandrel [4] leans with the tailstock center [3] of lathe;
B, with at least two process tools [5] clamping on lathe saddle, the spacing of process tool [5] is the integral multiple that is distributed in the spacing and cone-shaped piston ring [4] the thickness sum of the cone-shaped piston ring [2] on the mandrel [4], described lathe is the numerically controlled lathe of adding a three-dimensional on traditional two coordinate numerically controlled lathe bases with X, Z axle, the main shaft angulation of the direction of motion of three-dimensional and lathe is 1.75 °, and described knife rest is contained on the three-dimensional;
The drive unit of c, lathe drives X, the Z axle is done the upper slitter action, and when point of a knife contacted with the big termination of cone-shaped piston ring, drive unit drove three-dimensional and drives knife rest along being the conical surface that tapered pistons are processed in 1.75 ° of direction feeds with main shaft;
D, drive unit drive X, the Z axle is done the cutter relieving action, and three-dimensional is back to original position, and the big holder of Z axle action drive lathe is pulled and moved forward to next piston ring position, repeats above-mentioned action, until the conical surface that processes all cone-shaped piston rings on the mandrel [4];
Described X-axis be above saddle along lathe laterally with respect to the saddle moving direction of upper slide rest movably, described Z axle is along the vertical saddle moving direction movably of lathe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100476343A CN100540186C (en) | 2005-10-31 | 2005-10-31 | The processing method of numerical control turning tapered piston annular conical surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100476343A CN100540186C (en) | 2005-10-31 | 2005-10-31 | The processing method of numerical control turning tapered piston annular conical surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1958199A CN1958199A (en) | 2007-05-09 |
| CN100540186C true CN100540186C (en) | 2009-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100476343A Expired - Fee Related CN100540186C (en) | 2005-10-31 | 2005-10-31 | The processing method of numerical control turning tapered piston annular conical surface |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069195B (en) * | 2010-12-21 | 2012-07-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for turning annular parallelism face polytetrafluoroethylene rubber ring |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4151765A (en) * | 1977-12-05 | 1979-05-01 | Gus Sevastakis | Method and apparatus for forming matching tapered surfaces on interfitting male and female parts |
| CN1097155A (en) * | 1994-06-13 | 1995-01-11 | 北京探矿机械厂工会职工技术协作委员会 | Adjust the taper-turning method of small tool angle with dial gauge |
| US5417130A (en) * | 1989-04-12 | 1995-05-23 | Carl Benzinger Gmbh & Co. | Process and device for machining and workpieces to shape |
| CN2654266Y (en) * | 2003-11-14 | 2004-11-10 | 唐继环 | Device for plain lathe to process conical inner screw thread |
-
2005
- 2005-10-31 CN CNB2005100476343A patent/CN100540186C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4151765A (en) * | 1977-12-05 | 1979-05-01 | Gus Sevastakis | Method and apparatus for forming matching tapered surfaces on interfitting male and female parts |
| US5417130A (en) * | 1989-04-12 | 1995-05-23 | Carl Benzinger Gmbh & Co. | Process and device for machining and workpieces to shape |
| CN1097155A (en) * | 1994-06-13 | 1995-01-11 | 北京探矿机械厂工会职工技术协作委员会 | Adjust the taper-turning method of small tool angle with dial gauge |
| CN2654266Y (en) * | 2003-11-14 | 2004-11-10 | 唐继环 | Device for plain lathe to process conical inner screw thread |
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| Publication number | Publication date |
|---|---|
| CN1958199A (en) | 2007-05-09 |
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Owner name: DALIAN MACHINE TOOL (CNC) CO., LTD. Free format text: FORMER OWNER: DALIAN MACHINE-TOOL GROUP CO LTD Effective date: 20120305 |
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Effective date of registration: 20120305 Address after: 116000, No. 100, Liaohe East Road, Shuang D port, Liaoning, Dalian Patentee after: Dalian Machine Tool (Digital) Co., Ltd. Address before: 116021 No. 38, Anshan Road, Dalian, Liaoning Patentee before: Dalian Machine-Tool Group Co., Ltd. |
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