CN106583755A - Machining method for omega-shaped ring sealing washer - Google Patents

Machining method for omega-shaped ring sealing washer Download PDF

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Publication number
CN106583755A
CN106583755A CN201710090426.4A CN201710090426A CN106583755A CN 106583755 A CN106583755 A CN 106583755A CN 201710090426 A CN201710090426 A CN 201710090426A CN 106583755 A CN106583755 A CN 106583755A
Authority
CN
China
Prior art keywords
machining
omega
processing
sealing washer
special
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.)
Pending
Application number
CN201710090426.4A
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Chinese (zh)
Inventor
姜杰
马涛
张凯
贾小斌
张建晓
李义民
郑维信
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lanzhou LS Heavy Equipment Co Ltd
Original Assignee
Lanzhou LS Heavy Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lanzhou LS Heavy Equipment Co Ltd filed Critical Lanzhou LS Heavy Equipment Co Ltd
Priority to CN201710090426.4A priority Critical patent/CN106583755A/en
Publication of CN106583755A publication Critical patent/CN106583755A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B1/00Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods

Abstract

The invention discloses a machining method for an omega-shaped ring sealing washer, and belongs to the field of heat exchanger sealing internals. By adoption of the machining method, the problems of deformation and poor precision in the machining process are solved. The machining method comprises the following steps that a special process mould invented by the company and used for machining the omega-shaped ring sealing washer is adopted; the two planes, the inner circle and the outer circle of the omega-shaped ring sealing washer are subjected to rough turning at first; the omega-shaped ring sealing washer 1 is embedded into the special process mould 4 during semi-finish turning and finish turning and fixed through compression bolts 2 and pressing plates 3, and the outer circle plane and the R part are machined; the workpiece is turned, and then the inner circle plane and the r part of the omega-shaped ring are machined, wherein the cut depth is 0.5-1 mm, the amount of feed is 0.5 mm/r, and the cutting speed is 40 m/min; and cooling liquid is continuously fed in the machining process, so that the temperature of the workpiece is not greater than 40 DEG C. According to the machining method for the omega-shaped ring sealing washer, vibration is not prone to occurring during machining of the omega-shaped ring sealing washer, operation is easy, it is guaranteed that the qualified workpiece can be machined, the production period is effectively shortened, and the productivity is increased.

Description

A kind of processing method of Ω rings seal washer
Technical field
The invention belongs to heat exchanger sealing internals manufacture field, more particularly to a kind of processing method of seal washer.
Background technology
Ω ring seal washers are the important composition parts of Ω ring heat exchangers, and component diameter thickness of thin greatly belongs to large-scale Thin class workpiece, its processing request surface accuracy is high, upper and lower surface concordantly spends height.Its material is usually rustless steel, and feature is to contain Carbon amounts is low, toughness is high, plasticity is poor, the coefficient of expansion is high, thus results in processing difficulties.Prior art cannot solve it and add with equipment Deformation and precision problem during work.
The content of the invention
The technical problem to be solved is:There is provided and a kind of not only ensured precision but also indeformable Ω rings seal washer Processing method.
A kind of processing method of Ω rings seal washer of the present invention, comprises the following steps:
(1) frock and cutter, the special process mold of the processing Ω ring seal washers invented using our company;Select lathe tool, Lathe tool anterior angle selects 20 ° ~ 40 °, and relief angle selects 8 ° ~ 20 °, and cutter should be kept sharp;
(2) it is rough turn, two planes, the inside and outside circle of Ω rings seal washer described in first roughing;
(3) half smart car
Ω rings seal washer 1 is mounted in special process mold 4, is fixed with hold-down bolt 2 and pressing plate 3, half finishing processing Outer disk and R-portion;Workpiece turn-over, Ω rings seal washer 1 is mounted in special process mold 4, with hold-down bolt 2 and pressure Plate 3 is fixed, and disk and r parts in half finishing processing Ω rings, institute's processing dimension stays 1~3mm allowances;
2. in the processing of former steps, the depth of cut is 0.5 ~ 1mm, and the depth of cut turns for 0.5mm/, and cutting speed is 40m/min;
3. coolant is continuously added to be cooled down in process, workpiece temperature cannot be greater than 40 DEG C;
(4) smart car
1. Ω rings seal washer 1 is mounted in special process mold 4, is fixed with hold-down bolt 2 and pressing plate 3, thrust is uniform, Ensure upper and lower two plane keeping parallelisms;The surplus that the outer disk of Ω rings seal washer 1 and R-portion described in first smart car are stayed, workpiece Disk and r parts in smart car Ω ring seal washer 1 again after upset, reach design size and smooth requirement;
2. continuous to the Ω rings seal washer 1 in process to add coolant to cool down, workpiece temperature cannot be greater than 40 ℃;
(5)Check, after machining, unclamp hold-down bolt 2 and pressing plate 3, check unevenness, circularity, the table of Ω ring seal washers Surface roughness and all of physical dimension, meet drawing requirement.
The invention has the beneficial effects as follows:
(1) the present invention uses special tooling workpiece pressing, is not likely to produce vibration when Ω ring seal washers are processed, moreover it is possible to slowly release The pressure produced due to Continuous maching is put, so as to reducing Ω ring seal washer deflections and ensureing precision.
(2) processing ease of the present invention, can guarantee that and process qualified workpiece, effectively shortens the production cycle, improves production Rate, and to there is other Large Dimension Thin-wall Machinings to have good reference function.
Description of the drawings
The fundamental diagram of Fig. 1 present invention, each part labelling is as follows in figure:
(1) workpiece Ω ring seal washers to be added, (2) hold-down bolt, (3) pressing plate, (4) technique mold;
Fig. 2 is the top view of Fig. 1
Fig. 3 is Ω ring seal washer front views.
Fig. 4 is Ω ring seal washer top views.
Specific embodiment
The specific embodiment of the present invention is described further in conjunction with accompanying drawing:
A kind of processing method of Ω rings seal washer of the present invention, comprises the following steps:
(1) frock and cutter, the special process mold of the processing Ω ring seal washers invented using our company;Select lathe tool: Lathe tool anterior angle selects 20 ° ~ 40 °, and relief angle selects 8 ° ~ 20 °, and cutter should be kept sharp;
(2) it is rough turn, two planes, the inside and outside circle of Ω rings seal washer described in first roughing, as shown in Figure 3;
(3) half smart car
As shown in Figure 1, Figure 3, Ω rings seal washer 1 is mounted in special process mold 4, it is solid with hold-down bolt 2 and pressing plate 3 Calmly, half finishing processing outer disk and R-portion;Workpiece turn-over, Ω rings seal washer 1 is mounted in special process mold 4, is used Hold-down bolt 2 and pressing plate 3 are fixed, and disk and r parts in half finishing processing Ω rings, institute's processing dimension is stayed more than 1~3mm smart cars Amount;
2. in the processing of former steps, the depth of cut is 0.5 ~ 1mm, and the depth of cut turns for 0.5mm/, and cutting speed is 40m/min;
3. keep workpiece temperature as far as possible in process, it is impossible to too hot, prevent thermal stress deformation, continuously add coolant to carry out cold But, workpiece temperature cannot be greater than 40 DEG C;
(4) smart car
1. as shown in Figure 1, Figure 3, Ω rings seal washer 1 is mounted in special process mold 4, it is solid with hold-down bolt 2 and pressing plate 3 Fixed, thrust is uniform, it is ensured that upper and lower two plane keeping parallelisms;The outer disk of Ω rings seal washer 1 and R-portion described in first smart car The surplus stayed, disk and r parts in smart car Ω ring seal washer 1 again after workpiece turning, reaches design size and smooth requirement;
2. it is continuous to the Ω rings seal washer 1 in process to add coolant to cool down, the sealing of Ω rings is reduced as far as possible Packing ring temperature, Reducing distortion, while detecting workpiece temperature, cannot be greater than 40 DEG C;
(5)Check, after machining, unclamp hold-down bolt 2 and pressing plate 3, check unevenness, circularity, the table of Ω ring seal washers Surface roughness and all of physical dimension, meet drawing requirement.

Claims (2)

1. a kind of processing method of Ω rings seal washer, is characterized in that, comprise the following steps:
1)Frock cutter, the special process mold of the processing Ω ring seal washers invented using our company;Select lathe tool:Car Knife anterior angle selects 20 ° ~ 40 °, and relief angle selects 8 ° ~ 20 °, and cutter should be kept sharp;
2)It is rough turn, two planes, the inside and outside circle of Ω rings seal washer described in first roughing;
3)Half smart car
By Ω ring seal washers(1)It is mounted to special process mold(4)In, use hold-down bolt(2)And pressing plate(3)It is fixed, half essence Vehicle Processing outer disk and R-portion;Workpiece turn-over, by Ω ring seal washers(1)It is mounted to special process mold(4)In, with pressure Tight bolt(2)And pressing plate(3)Fixed, disk and r parts in half finishing processing Ω rings, institute's processing dimension stays 1~3mm smart cars Surplus;
2. in the processing of former steps, the depth of cut is 0.5 ~ 1mm, and the depth of cut turns for 0.5mm/, and cutting speed is 40m/min;
3. coolant is continuously added to be cooled down in the course of processing, workpiece temperature cannot be greater than 40 DEG C;
4)Smart car
1. by Ω ring seal washers(1)It is mounted to special process mold(4)In, use hold-down bolt(2)And pressing plate(3)It is fixed, pressure Clamp force is uniform, it is ensured that upper and lower two plane keeping parallelisms;Ω rings seal washer described in first smart car(1)Outer disk and R-portion are stayed Surplus, smart car Ω ring seal washer again after workpiece turning(1)Interior disk and r parts, reach design size and smooth requirement.
2. 2. in process to the Ω rings seal washer(1)Coolant is continuously added to be cooled down, workpiece temperature must not be big In 40 DEG C;
5)Check
After machining, hold-down bolt is unclamped(2)And pressing plate(3), the unevenness of inspection Ω ring seal washers, circularity, surface are thick Rugosity and all of physical dimension, meet drawing requirement.
CN201710090426.4A 2017-02-20 2017-02-20 Machining method for omega-shaped ring sealing washer Pending CN106583755A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710090426.4A CN106583755A (en) 2017-02-20 2017-02-20 Machining method for omega-shaped ring sealing washer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710090426.4A CN106583755A (en) 2017-02-20 2017-02-20 Machining method for omega-shaped ring sealing washer

Publications (1)

Publication Number Publication Date
CN106583755A true CN106583755A (en) 2017-04-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710090426.4A Pending CN106583755A (en) 2017-02-20 2017-02-20 Machining method for omega-shaped ring sealing washer

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CN (1) CN106583755A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108620820A (en) * 2018-04-24 2018-10-09 哈尔滨汽轮机厂有限责任公司 In a kind of steam turbine gas port sealing ring anti-deformation processing method is pressed into pressure outer shell
CN109500406A (en) * 2018-12-28 2019-03-22 贵州凯星液力传动机械有限公司 A kind of processing method, cutter and the tooling of lip seal circle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5462579A (en) * 1977-10-26 1979-05-19 Mitsubishi Electric Corp Method of cutting steel by lathe
JPS56114601A (en) * 1980-02-14 1981-09-09 Mitsubishi Electric Corp Multitool cutting method in numerical control
JP2002307201A (en) * 2001-04-11 2002-10-23 Kobe Steel Ltd Method of cutting steel for machine structure
CN104690298A (en) * 2015-02-13 2015-06-10 中钢集团邢台机械轧辊有限公司 Turning method for high-speed steel roller
CN105458638A (en) * 2014-08-28 2016-04-06 无锡格瑞斯精密机械有限公司 Ejector rod mold machining process
CN105562719A (en) * 2015-11-30 2016-05-11 陕西盛迈石油有限公司 Machining method for front cylinder of turbine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5462579A (en) * 1977-10-26 1979-05-19 Mitsubishi Electric Corp Method of cutting steel by lathe
JPS56114601A (en) * 1980-02-14 1981-09-09 Mitsubishi Electric Corp Multitool cutting method in numerical control
JP2002307201A (en) * 2001-04-11 2002-10-23 Kobe Steel Ltd Method of cutting steel for machine structure
CN105458638A (en) * 2014-08-28 2016-04-06 无锡格瑞斯精密机械有限公司 Ejector rod mold machining process
CN104690298A (en) * 2015-02-13 2015-06-10 中钢集团邢台机械轧辊有限公司 Turning method for high-speed steel roller
CN105562719A (en) * 2015-11-30 2016-05-11 陕西盛迈石油有限公司 Machining method for front cylinder of turbine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108620820A (en) * 2018-04-24 2018-10-09 哈尔滨汽轮机厂有限责任公司 In a kind of steam turbine gas port sealing ring anti-deformation processing method is pressed into pressure outer shell
CN109500406A (en) * 2018-12-28 2019-03-22 贵州凯星液力传动机械有限公司 A kind of processing method, cutter and the tooling of lip seal circle
CN109500406B (en) * 2018-12-28 2020-08-11 贵州凯星液力传动机械有限公司 Method for processing lip type sealing ring

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