CN104057250A - Processing technology for guaranteeing assembling interchangeability of inner and outer rings of revolving support - Google Patents
Processing technology for guaranteeing assembling interchangeability of inner and outer rings of revolving support Download PDFInfo
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- CN104057250A CN104057250A CN201410244897.2A CN201410244897A CN104057250A CN 104057250 A CN104057250 A CN 104057250A CN 201410244897 A CN201410244897 A CN 201410244897A CN 104057250 A CN104057250 A CN 104057250A
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- processing technology
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- external cycle
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- 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
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Abstract
The invention relates to a processing technology for guaranteeing the assembling interchangeability of the inner and outer rings of a revolving support. The processing technology mainly comprises the following steps: bar material, hot forging, annealing, lathe machining, heat treating, grinding machining and finished product assembling, wherein the heat treating adopts vacuum heat treatment which is conducted in a continuous brightness glowing furnace with quenching firstly and tempering secondly, the quenching temperature is 1050-1080 DEG C, the tempering temperature is 600-680 DEG C, and cooling is conducted after tempering; a small amount of machining allowance is left for the grinding machining when the lathe machining is conducted; the centers of the inner and outer rolling ways of the revolving support are within the tolerance range when the grinding machining is conducted. According to the invention, the production process is simplified and the production efficiency of the revolving support is improved; in addition, the demand for tolerance is increased in the machining process of the inner and outer rings of the revolving support, the interchangeability of the inner and outer rings of revolving supports is improved, the assembling efficiency is improved, and the possibility that damage is caused by a part and can't be restored in the utilization process can be avoided.
Description
Technical field
The present invention relates to pump technology field, be specifically related to a kind of production technology of utilizing existing impeller mould to produce different lift impellers.
Background technology
Pivoting support is applied very extensive in modern industry, is called as " joint of machine ", is between two articles, to need to do relative gyration, needs again to bear the necessary important drive disk assembly of machinery of axial force, radial load, tilting moment simultaneously.Along with developing rapidly of machinery industry, pivoting support is widely used in industries such as ship equipment, engineering machinery, light industry and machinery, metallurgical machinery, medical machinery, industrial machineries.
At present, the control axial, radial clearance after pivoting support assembling is two kinds of modes substantially: a kind of is that inside and outside circle part selects pairing to use after ball race grinding; Another kind is the steel ball of selecting specified rule value diameter (being positive and negative tolerance).With upper type tend to cause certain part in dormant state, part reprocess frequently, production efficiency is low, and the quality control of product difficulty.
In prior art, the technological process of producing revolution support extensive use is: forge, and---------cooling---blank---forges---annealing---cutting---quenching---tempering---grinding---product inspection to heating rolling in pickling, its major defect is that technological process is too loaded down with trivial details, cause the long processing time of rotary support, manufacturing cost is high, and due to the selection of material and the control of Technology for Heating Processing, the finished product of preparation is being difficult to reach requirement aspect hardness and Corrosion Protection.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of production technology of utilizing existing impeller mould to produce different lift impellers of being convenient to regulate pump performance parameter.
Technical problem to be solved by this invention realizes by the following technical solutions:
A processing technology of guaranteeing revolution support Internal and external cycle assembling interchangeability, mainly comprises the steps:
------------finished product step is assembled in heat treatment---grinding---in turning processing in annealing in forge hot to comprise bar, heat treatment adopts carries out vacuum heat in continous way bright quenching stove, the tempering again of first quenching, hardening heat is 1050～1080 ℃, temperature is 600～680 ℃, cooling after tempering; It is that a small amount of allowance is stayed in grinding that turning adds man-hour, makes the inside and outside raceway center of revolution support during grinding in the margin of tolerance.
As optimal way, the described type of cooling preferably adopts water-cooled.
As optimal way, material is selected: described bar adopts 3Cr13 material.
As optimal way, described hot forging process adopts bar is entered in 200T forcing press, at 1050～1150 ℃ of temperature, carries out forge hot.
As optimal way, described annealing operation adopts anaerobic annealing furnace, and 850～880 ℃ of annealing temperatures, are incubated 5～6 hours.
As optimal way, described grinding operation adopts Double End, automatic groove grinder.
The invention has the beneficial effects as follows:
This technical process has been simplified production procedure, the production efficiency that provides revolution to support; This production process has increased the demand of tolerance in the process of revolution support Internal and external cycle in addition, provide each revolution to support the interchangeability of Internal and external cycle, efficiency of assembling is provided, has avoided one of them part in use procedure to cause the possibility of damaging and cannot repairing.
Accompanying drawing explanation
Fig. 1 is revolution support outer ring structure schematic diagram;
Fig. 2 is revolution support inner ring structure schematic diagram.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Embodiment mono-
Select the bar of 3Cr13 material, enter in 200T forcing press, at 1100 ℃, carry out forge hot, then send into anaerobic annealing furnace annealing, 875 ℃ of annealing temperatures, after insulation in 6 hours, in instrument lathe, carry out turning processing, then at continous way bright quenching stove, carry out vacuum heat, 1065 ℃ of hardening heats, temperature is selected in 650 ℃, water-cooled after tempering, send into again Double End, automatic groove grinder, the revolution of grinding is supported Internal and external cycle raceway center in the margin of tolerance as shown in Figures 1 and 2, outer ring raceway center is of a size of D1a b inner ring raceway center and is of a size of D2c d, through Double End, centerless external cylindrical mill, automatically raceway groove grinds, after several grinding process such as automatic inner circle mill, enter linkage editor.
Embodiment bis-
Select the bar of 3Cr13 material, enter in 200T forcing press, at 1125 ℃, carry out forge hot, then send into anaerobic annealing furnace annealing, 880 ℃ of annealing temperatures, after insulation in 5 hours, in instrument lathe, carry out turning processing, then at continous way bright quenching stove, carry out vacuum heat, 1050 ℃ of hardening heats, temperature is selected in 680 ℃, water-cooled after tempering, send into again Double End, automatic groove grinder, the revolution of grinding is supported Internal and external cycle raceway center in the margin of tolerance as shown in Figures 1 and 2, outer ring raceway center is of a size of D1a b inner ring raceway center and is of a size of D2c d, through Double End, centerless external cylindrical mill, automatically raceway groove grinds, after several grinding process such as automatic inner circle mill, enter linkage editor.
Embodiment tri-
Select the bar of 3Cr13 material, enter in 200T forcing press, at 1150 ℃, carry out forge hot, then send into anaerobic annealing furnace annealing, 880 ℃ of annealing temperatures, after insulation in 5 hours, in instrument lathe, carry out turning processing, then at continous way bright quenching stove, carry out vacuum heat, 1080 ℃ of hardening heats, temperature is selected in 680 ℃, water-cooled after tempering, send into again Double End, automatic groove grinder, the revolution of grinding is supported Internal and external cycle raceway center in the margin of tolerance as shown in Figures 1 and 2, outer ring raceway center is of a size of D1a b inner ring raceway center and is of a size of D2c d, through Double End, centerless external cylindrical mill, automatically raceway groove grinds, after several grinding process such as automatic inner circle mill, enter linkage editor.
Embodiment tetra-
Select the bar of 3Cr13 material, enter in 200T forcing press, at 1100 ℃, carry out forge hot, then send into anaerobic annealing furnace annealing, 850 ℃ of annealing temperatures, after insulation in 6 hours, in instrument lathe, carry out turning processing, then at continous way bright quenching stove, carry out vacuum heat, 1050 ℃ of hardening heats, temperature is selected in 600 ℃, water-cooled after tempering, send into again Double End, automatic groove grinder, the revolution of grinding is supported Internal and external cycle raceway center in the margin of tolerance as shown in Figures 1 and 2, outer ring raceway center is of a size of D1a b inner ring raceway center and is of a size of D2c d, through Double End, centerless external cylindrical mill, automatically raceway groove grinds, after several grinding process such as automatic inner circle mill, enter linkage editor.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (6)
1. a processing technology of guaranteeing revolution support Internal and external cycle assembling interchangeability, is characterized in that: mainly comprise the steps:
------------finished product step is assembled in heat treatment---grinding---in turning processing in annealing in forge hot to comprise bar, heat treatment adopts carries out vacuum heat in continous way bright quenching stove, the tempering again of first quenching, hardening heat is 1050～1080 ℃, temperature is 600～680 ℃, cooling after tempering, it is that a small amount of allowance is stayed in grinding that turning adds man-hour, makes the inside and outside raceway center of revolution support during grinding in the margin of tolerance.
2. according to a kind of processing technology of guaranteeing revolution support Internal and external cycle assembling interchangeability described in claim 1, it is characterized in that: the described type of cooling preferably adopts water-cooled.
3. according to a kind of processing technology of guaranteeing revolution support Internal and external cycle assembling interchangeability described in claim 1, it is characterized in that: material is selected: described bar adopts 3Cr13 material.
4. according to a kind of described in claim 1, guarantee that revolution supports the processing technology of Internal and external cycle assembling interchangeability, it is characterized in that: described hot forging process adopts bar is entered in 200T forcing press, at 1050～1150 ℃ of temperature, carry out forge hot.
5. according to a kind of processing technology of guaranteeing revolution support Internal and external cycle assembling interchangeability described in claim 1, it is characterized in that: described annealing operation adopts anaerobic annealing furnace, and 850～880 ℃ of annealing temperatures, are incubated 5～6 hours.
6. according to a kind of processing technology of guaranteeing revolution support Internal and external cycle assembling interchangeability described in claim 1, it is characterized in that: described grinding operation adopts Double End, automatic groove grinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410244897.2A CN104057250A (en) | 2014-06-04 | 2014-06-04 | Processing technology for guaranteeing assembling interchangeability of inner and outer rings of revolving support |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410244897.2A CN104057250A (en) | 2014-06-04 | 2014-06-04 | Processing technology for guaranteeing assembling interchangeability of inner and outer rings of revolving support |
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| CN104057250A true CN104057250A (en) | 2014-09-24 |
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| CN201410244897.2A Pending CN104057250A (en) | 2014-06-04 | 2014-06-04 | Processing technology for guaranteeing assembling interchangeability of inner and outer rings of revolving support |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759845A (en) * | 2015-03-20 | 2015-07-08 | 高灵军 | Processing technology of bearing |
| CN111283389A (en) * | 2020-03-17 | 2020-06-16 | 无锡鹰贝精密轴承有限公司 | End face grinding process for wear-resisting disc of hydraulic motor |
| CN113798784A (en) * | 2020-06-17 | 2021-12-17 | 武汉软件工程职业学院 | Manufacturing method of machining part and machining part |
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| CN103551811A (en) * | 2013-11-11 | 2014-02-05 | 东阿县鑫兴机械加工有限公司 | Manufacturing technology for high-speed and high-temperature precision deep groove ball bearing |
| CN103624504A (en) * | 2013-11-28 | 2014-03-12 | 吴冬梅 | Method for machining inner tooth ring |
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2014
- 2014-06-04 CN CN201410244897.2A patent/CN104057250A/en active Pending
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| GB9421025D0 (en) * | 1994-05-06 | 1994-12-07 | Cooper Roller Bearings Company | Improvements in split roller bearings |
| CN1249005A (en) * | 1997-12-26 | 2000-03-29 | 日本精工株式会社 | Continuous annealing furnace, rolling bearing, annealing method, and method of manufacturing inner and outer races of deeply groove ball bearing |
| JP2003194072A (en) * | 2001-12-26 | 2003-07-09 | Nsk Ltd | Rolling device |
| CN2886182Y (en) * | 2006-02-26 | 2007-04-04 | 孔庆山 | Rolling bearing dedicated for economical type ball mill |
| CN101709741A (en) * | 2009-10-13 | 2010-05-19 | 鞍山钢铁轴承有限公司 | Asymmetrical multi-subdivision bearing and manufacture process thereof |
| CN102069346A (en) * | 2009-11-23 | 2011-05-25 | 常州现代设计与制造中心 | Process for processing spindle sleeve of built-in motorized spindle unit |
| CN102310310A (en) * | 2010-07-08 | 2012-01-11 | 襄阳汽车轴承股份有限公司 | Composite machining process for inner and outer rings of narrow-series thin-walled high-precision conical thin-walled bearings |
| CN102441768A (en) * | 2010-11-15 | 2012-05-09 | 江苏万达特种轴承有限公司 | Technology for processing dual-hardness roller sleeve ring of bearing steel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759845A (en) * | 2015-03-20 | 2015-07-08 | 高灵军 | Processing technology of bearing |
| CN111283389A (en) * | 2020-03-17 | 2020-06-16 | 无锡鹰贝精密轴承有限公司 | End face grinding process for wear-resisting disc of hydraulic motor |
| CN113798784A (en) * | 2020-06-17 | 2021-12-17 | 武汉软件工程职业学院 | Manufacturing method of machining part and machining part |
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Application publication date: 20140924 |