CN105312855A - Machining process for false twister bearing spindle - Google Patents
Machining process for false twister bearing spindle Download PDFInfo
- Publication number
- CN105312855A CN105312855A CN201510702052.8A CN201510702052A CN105312855A CN 105312855 A CN105312855 A CN 105312855A CN 201510702052 A CN201510702052 A CN 201510702052A CN 105312855 A CN105312855 A CN 105312855A
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- China
- Prior art keywords
- mandrel
- processing
- cylindrical
- mill
- plating
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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
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention discloses a machining process for a false twister bearing spindle. The machining process mainly comprises a procedure of plating nickel and phosphorus on the surface of the spindle. The problems of the corner effect and the poor surface quality due to hard chromium plating on the surface of the spindle are solved. Due to the fact that nickel-phosphorus plating surface treatment is adopted, the machining process has the advantages that the thickness of a plated layer is small, and the plated layer is high in hardness, uniform, good in abrasion resistance and high in corrosion resistance.
Description
Technical field
The invention belongs to the special part field of chemical fibre equipment, particularly relate to a kind of processing technology of scroll tube bearing core shaft.
Background technology
Scroll tube bearing is the crucial precise part of friction twister high speed running, is widely used in high-speed stretch yarn machine, plays vital effect to spinning quality.Scroll tube bearing adopts vibration damping, axle to connect two ditch double-row-ball structure technology, good rigidly rational in infrastructure, raceway adopts advanced precision processing technology, have smooth running reliable, vibrate the advantages such as little, noise is low, the fast difference of ingot is little, easy to maintenance, and by main frame frequency control, realize the variation of producing product variety.The cylindrical of scroll tube bearing core shaft has been installed frictional disk and the godet of needs activity, environment for use is more severe simultaneously.Therefore, scroll tube bearing core shaft needs to have high rigidity, the performance such as wear-resisting and anti-corrosion.The processing process of existing scroll tube bearing core shaft is as follows: blanking, and------------corase grind cylindrical---bores,---------------------------always checks in the two ditch of mill---the two ditch of superfinishing---fine cylindrical hard rounding arc angle face grinding fine grinding after plating plating hard chromium on surface fine grinding before plating Milling groove tapping female bore storehouse at the angle of falling the other end buffing cylindrical in surface hardening at the angle of falling one end.In existing technological process, scroll tube bearing core shaft surface adopts durionise process, because during hard chrome plating, because the characteristic of plating is uneven in mandrel surface electric current distribution, form plating sharp angle effect, thus cause elongated scroll tube bearing core shaft coating very uneven, the problem of the circularity of mandrel, tapering, the surface quality difference such as very large of beating, follow-up need fine cylindrical repeatedly, just can reach the requirement of technique, cause production and processing technology flow process complicated, there is processing difficulties, production cost is high, the problem that working (machining) efficiency is low.
Summary of the invention
The object of the invention is the above-mentioned weak point in order to overcome prior art, and provide a kind of working (machining) efficiency high, technological process is simple, the processing technology of the scroll tube bearing core shaft of bearing core shaft function admirable.
Technical scheme of the present invention is: a kind of processing technology of scroll tube bearing core shaft, this technique mainly comprises the steps:
Mandrel is carried out surface hardening process,
Then peripheral milling processing is carried out to the mandrel after quenching,
Mandrel after mill processing to foreign round carries out surface chemistry plating,
Described surface chemical plating is treated to chemical nickel phosphorus plating.
The further technical scheme of the present invention is: before described mandrel carries out surface hardening process, comprises following procedure of processing:
Buffing Excircle machining is carried out to mandrel blank,
With mandrel cylindrical for benchmark, car mandrel one chamfer.
The further technical scheme of the present invention is: before processing with mandrel peripheral milling after described mandrel surface Quenching Treatment, comprise following procedure of processing:
Mandrel after quenching is roughly ground cylindrical to process by cylindrical grinder,
With the mandrel cylindrical after corase grind for benchmark, bore, attack the screwed hole of chamfered end, ensure the requirement of beating of screwed hole,
With the mandrel cylindrical after corase grind for benchmark, car other end chamfering,
With the mandrel cylindrical after corase grind for benchmark, to chamfering end mill open slot,
Mandrel mill after milling open slot is machined to and needs size,
Mill has the end face of screw thread nose end,
To one end car arc chord angle of honed end face.
The further technical scheme of the present invention is: after described mandrel surface chemical nickel phosphorus plating, carries out the processing of mill ditch to mandrel.
The further technical scheme of the present invention is: after described mandrel mill ditch processing, carry out microstoning to raceway groove.
The present invention compared with prior art, there is following features: the present invention is owing to adopting the existing hard chrome plating operation of nickel plating phosphorus replaceable operation chain, the problem of the wedge angle pile up effect that effective solution mandrel durionise produces and the unequal surface quality difference of galvanization coating, the thickness of coating size of the phosphorus of nickel plating simultaneously can greatly reduce, nickel plating phosphorus thickness of coating size only has 1/4 of former hard chrome plating thickness of coating size, and coating to have hardness high, coating is even, wearability is good, toughness is high, stress is low, the advantages such as decay resistance is strong, circularity after mandrel nickel plating phosphorus, size, tapering, beat and can meet the requirement of product, omit the fine grinding operation of follow-up complexity simultaneously, production efficiency significantly improves.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, below in conjunction with embodiment, the present invention is further illustrated, and the content that embodiment is mentioned not is limitation of the invention.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
For my company scroll tube bearing HN2452-N1 mandrel, the present invention is further detailed explanation below.
A processing technology for scroll tube bearing core shaft, this technique mainly comprises the steps:
1. blanking: by bar blanking to mandrel technique required size or directly buy blank;
2. buffing cylindrical: step mandrel through feed grinding 1. to needs size;
3. the angle of falling one end: with mandrel cylindrical for benchmark, car one chamfer;
4. surface hardening: high-frequency quenching process is carried out to mandrel;
5. cylindrical is roughly ground: the mandrel after quenching is roughly ground cylindrical to process by cylindrical grinder;
6. bore, tapping female bore: with the mandrel cylindrical after roughly grinding for benchmark, bore, attack the screwed hole of chamfered end, ensure the requirement of beating of screwed hole;
7. the angle of falling the other end: with the mandrel cylindrical after roughly grinding for benchmark, car other end chamfering;
8. groove milling: with the mandrel cylindrical after roughly grinding for benchmark, to step chamfering end mill open slot 7.;
9. half fine grinding: by step 8. after mandrel mill be machined to and need size;
10. face grinding: mill has the end face of screw thread nose end;
Hard rounding arc angle: to one end car arc chord angle of honed end face;
Fine grinding before plating: for the last time processing is ground to mandrel cylindrical;
Nickel plating phosphorus: plating nickel and phosphorus handling is carried out on surface, improves mandrel wearability and anticorrosive property;
The two ditch of mill: with the mandrel surface after plating for benchmark, grind two raceway grooves;
The two ditch of superfinishing: microstoning is carried out to two raceway grooves.
The present invention is owing to adopting the existing hard chrome plating operation of nickel plating phosphorus replaceable operation chain, the problem of the wedge angle pile up effect that effective solution mandrel durionise produces and surface quality difference, the thickness of coating of the phosphorus of nickel plating simultaneously can greatly reduce, plating nickel-phosphorus coating size only has 1/4 of former hard chrome plating coating size, and plating nickel-phosphorus coating has higher than hard chrome plating coating hardness, coating evenly, wearability is good, toughness is high, stress is low, the advantages such as decay resistance is strong, circularity after mandrel nickel plating phosphorus, size, tapering can reach the requirement of product with beating, omit the fine grinding operation of follow-up complexity simultaneously, production cost is made to reduce by more than 20%, production efficiency significantly improves simultaneously.
Above-described embodiment is the present invention's preferably implementation, and in addition, the present invention can also realize by alternate manner, and under the prerequisite not departing from the technical program design, any apparent replacement is all within protection scope of the present invention.
The improvements of the present invention relative to prior art are understood more easily in order to allow those of ordinary skill in the art, descriptions more of the present invention are simplified, and for the sake of clarity, present specification is omitted some other elements, and those of ordinary skill in the art it is to be appreciated that these abridged elements also can form this content of the present invention.
Claims (5)
1. a processing technology for scroll tube bearing core shaft, this technique mainly comprises the steps:
Mandrel is carried out surface hardening process,
Then peripheral milling processing is carried out to the mandrel after quenching,
Mandrel after mill processing to foreign round carries out surface chemistry plating,
It is characterized in that: described surface chemical plating is treated to chemical nickel phosphorus plating.
2. the processing technology of a kind of scroll tube bearing core shaft according to claim 1, is characterized in that: before described mandrel carries out surface hardening process, comprises following procedure of processing:
Buffing Excircle machining is carried out to mandrel blank,
With mandrel cylindrical for benchmark, car mandrel one chamfer.
3. the processing technology of a kind of scroll tube bearing core shaft according to claim 1 and 2, is characterized in that: before processing with mandrel peripheral milling after described mandrel surface Quenching Treatment, comprise following procedure of processing:
Mandrel after quenching is roughly ground cylindrical to process by cylindrical grinder,
With the mandrel cylindrical after corase grind for benchmark, bore, attack the screwed hole of chamfered end, ensure the requirement of beating of screwed hole,
With the mandrel cylindrical after corase grind for benchmark, car other end chamfering,
With the mandrel cylindrical after corase grind for benchmark, to chamfering end mill open slot,
Mandrel mill after milling open slot is machined to and needs size,
Mill has the end face of screw thread nose end,
To one end car arc chord angle of honed end face.
4. the processing technology of any one scroll tube bearing core shaft according to any one of claim 1-3, is characterized in that: after described mandrel surface chemical nickel phosphorus plating, carries out the processing of mill ditch to mandrel.
5. the processing technology of a kind of scroll tube bearing core shaft according to claim 4, is characterized in that: after described mandrel mill ditch processing, carry out microstoning to raceway groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510702052.8A CN105312855A (en) | 2015-10-27 | 2015-10-27 | Machining process for false twister bearing spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510702052.8A CN105312855A (en) | 2015-10-27 | 2015-10-27 | Machining process for false twister bearing spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105312855A true CN105312855A (en) | 2016-02-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510702052.8A Pending CN105312855A (en) | 2015-10-27 | 2015-10-27 | Machining process for false twister bearing spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105312855A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109570936A (en) * | 2019-01-04 | 2019-04-05 | 中国航发南方工业有限公司 | The processing method of torque tube component |
| CN111886361A (en) * | 2018-03-28 | 2020-11-03 | 爱信艾达株式会社 | Shaft member and method for manufacturing shaft member |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0932847A (en) * | 1995-07-17 | 1997-02-04 | Canon Electron Inc | Gas bearing unit |
| CN2758445Y (en) * | 2004-10-10 | 2006-02-15 | 山东九环石油机械有限公司 | infiltration plated alloy corrosion proof oil pumping rod |
| CN201891919U (en) * | 2010-09-09 | 2011-07-06 | 扬中市阀门厂有限公司 | Wear resistant and corrosion resistant valve rod |
| CN102312229A (en) * | 2011-09-26 | 2012-01-11 | 武汉材料保护研究所 | Method for sealing pores of ceramic spraying layer on steel surface by chemical plating Ni-P alloy layer |
-
2015
- 2015-10-27 CN CN201510702052.8A patent/CN105312855A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0932847A (en) * | 1995-07-17 | 1997-02-04 | Canon Electron Inc | Gas bearing unit |
| CN2758445Y (en) * | 2004-10-10 | 2006-02-15 | 山东九环石油机械有限公司 | infiltration plated alloy corrosion proof oil pumping rod |
| CN201891919U (en) * | 2010-09-09 | 2011-07-06 | 扬中市阀门厂有限公司 | Wear resistant and corrosion resistant valve rod |
| CN102312229A (en) * | 2011-09-26 | 2012-01-11 | 武汉材料保护研究所 | Method for sealing pores of ceramic spraying layer on steel surface by chemical plating Ni-P alloy layer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111886361A (en) * | 2018-03-28 | 2020-11-03 | 爱信艾达株式会社 | Shaft member and method for manufacturing shaft member |
| CN109570936A (en) * | 2019-01-04 | 2019-04-05 | 中国航发南方工业有限公司 | The processing method of torque tube component |
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Application publication date: 20160210 |