CN104259761A - Machining method beneficial to bearing seat production quality - Google Patents
Machining method beneficial to bearing seat production quality Download PDFInfo
- Publication number
- CN104259761A CN104259761A CN201410402763.9A CN201410402763A CN104259761A CN 104259761 A CN104259761 A CN 104259761A CN 201410402763 A CN201410402763 A CN 201410402763A CN 104259761 A CN104259761 A CN 104259761A
- Authority
- CN
- China
- Prior art keywords
- hole
- machining
- beneficial
- bearing block
- holes
- 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
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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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
-
- 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
- F16C2220/00—Shaping
- F16C2220/60—Shaping by removing material, e.g. machining
- F16C2220/62—Shaping by removing material, e.g. machining by turning, boring, drilling
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a machining method beneficial to bearing seat production quality. The machining method includes the steps of casting, reference surface machining, hole machining and connecting bolt hole making in sequence; reference surface machining refers to machining of end faces of blanks; hole machining refers to machining of center round holes located in the axial direction of the end faces and comprises rough hole machining and finish hole machining, and the rough hole machining refers to drilling through holes for the blanks with a drill bit with the diameter smaller than the design diameter of the center round holes of the bearing seats to obtain predrilled through holes; finish hole machining refers to broaching the predrilled through holes from two ends of each predrilled through hole with a boring tool to finally obtain the center round holes which are concentric reducing holes. The machining method is simple in machining routing and beneficial to quality and production efficiency of the bearing seats.
Description
Technical field
The present invention relates to machining manufacturing process field, particularly relate to a kind of processing method being beneficial to the bearing block quality of production.
Background technology
Prior art bottom bracket is widely used in rotating machinery, as the supporting member of bearing.Bearing block is provided with concentric circle holes, and described concentric circle holes is the installation station of bearing.In prior art, requiring in the rotating machinery that rotating accuracy is high, heavily loaded or rotating speed is higher, frequent needs are installed two even more bearings and are thought that rotating shaft provides two or more the strong point, the blower fan main shaft bearing housing etc. of screw pump bearing housing as longer in power transmission shaft, large-scale cooling tower in same bearing block.
Center hole on prior art bottom bracket generally by two sections of reducings and the circular hole of axis collinear form, the changeover portion of two sections of circular holes is as the shaft shoulder of bearing, to simplify the structure of bearing block and to be convenient to bearing installation, two sections of circular holes when diameter is larger due to the restriction of regular turning tool, the form of many employings boring machine bore hole processes, but it is easy to wear in cutting process for the cutter of bore hole, boring cutter processing length is that the hole wear extent of 100mm may reach 0.1mm, have a strong impact on the interference fit precision of center hole and the bearing obtained, be unfavorable for the service life of the parts such as rotating machinery bearing.
Summary of the invention
Easy to wear in cutting process for the cutter of bore hole in above-mentioned prior art, boring cutter processing length is that the hole wear extent of 100mm may reach 0.1mm, have a strong impact on the interference fit precision of center hole and the bearing obtained, be unfavorable for the problem in the service life of the parts such as rotating machinery bearing, the invention provides a kind of processing method being beneficial to the bearing block quality of production.
For the problems referred to above, the processing method being beneficial to the bearing block quality of production provided by the invention reaches goal of the invention by following technical essential: the processing method being beneficial to the bearing block quality of production, comprise the following steps that order is carried out: casting, processing datum, hole machined, making link bolt hole, described processing datum is the end face of turned blank;
Described hole machined is process the center hole be positioned in described end face axial, hole machined comprises roughing hole and Finish Machining Bore two steps, described roughing hole is that the drill bit adopting diameter to be less than bearing block center hole intended diameter carries out through hole to blank and drills, and obtains pre-holes drilled through;
Described Finish Machining Bore is adopt boring cutter to carry out expanding treatment to pre-holes drilled through respectively by the two ends of pre-holes drilled through, the last center hole arrived as concentric different diameter hole.
In this process route, when adopting boring cutter to carry out reaming to pre-holes drilled through, boring cutter controls the width at the bearing for bearing block assembling slightly larger than design by the axial feed amount at the two ends of blank, like this, boring cutter is little due to the depth of cut along center hole axis, can effectively reduce the wear extent of boring cutter in each reaming process, as in the screw pump bearing housing process of processing 300mm, station is installed in the bearing boring being 6216 for model, and Boring preciseness can be controlled in the scope of 0.015mm; Center hole between the bearing installation station adopting above technique to obtain is owing to being not used in and bearing fit, and so only need to ensure that its diameter is greater than the diameter of axle, namely above technique also helps the production efficiency of bearing housing.
Further technical scheme is:
For ensureing that the wear extent of boring cutter in feed process controls in more among a small circle, to ensure the bore hole quality of center hole, the depth of cut numerical value of described boring cutter on center hole axis is within the scope of 20mm-60mm.
For ease of carrying out hole machined, described processing datum be adopt sawing machine, planer, end face is processed as plane by least one in grinding machine three.
For ease of machining, described casting and processing datum, processing datum and hole machined, between hole machined and making link bolt hole, be provided with scribe step.
The present invention has following beneficial effect:
In this process route, when adopting boring cutter to carry out reaming to pre-holes drilled through, boring cutter controls the width at the bearing for bearing block assembling slightly larger than design by the axial feed amount at the two ends of blank, like this, boring cutter is little due to the depth of cut along center hole axis, can effectively reduce the wear extent of boring cutter in each reaming process, as in the screw pump bearing housing process of processing 300mm, station is installed in the bearing boring being 6216 for model, and Boring preciseness can be controlled in the scope of 0.015mm; Center hole between the bearing installation station adopting above technique to obtain is owing to being not used in and bearing fit, and so only need to ensure that its diameter is greater than the diameter of axle, namely above technique also helps the production efficiency of bearing housing.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but structure of the present invention is not limited only to following examples.
Embodiment 1:
Be beneficial to the processing method of the bearing block quality of production, comprise the following steps that order is carried out: casting, processing datum, hole machined, making link bolt hole, described processing datum is the end face of turned blank;
Described hole machined is process the center hole be positioned in described end face axial, hole machined comprises roughing hole and Finish Machining Bore two steps, described roughing hole is that the drill bit adopting diameter to be less than bearing block center hole intended diameter carries out through hole to blank and drills, and obtains pre-holes drilled through;
Described Finish Machining Bore is adopt boring cutter to carry out expanding treatment to pre-holes drilled through respectively by the two ends of pre-holes drilled through, the last center hole arrived as concentric different diameter hole.
In this process route, when adopting boring cutter to carry out reaming to pre-holes drilled through, boring cutter controls the width at the bearing for bearing block assembling slightly larger than design by the axial feed amount at the two ends of blank, like this, boring cutter is little due to the depth of cut along center hole axis, can effectively reduce the wear extent of boring cutter in each reaming process, as in the screw pump bearing housing process of processing 300mm, station is installed in the bearing boring being 6216 for model, and Boring preciseness can be controlled in the scope of 0.015mm; Center hole between the bearing installation station adopting above technique to obtain is owing to being not used in and bearing fit, and so only need to ensure that its diameter is greater than the diameter of axle, namely above technique also helps the production efficiency of bearing housing.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1: for ensureing that the wear extent of boring cutter in feed process controls in more among a small circle, to ensure the bore hole quality of center hole, the depth of cut numerical value of described boring cutter on center hole axis is within the scope of 20mm-60mm.
For ease of carrying out hole machined, described processing datum be adopt sawing machine, planer, end face is processed as plane by least one in grinding machine three.
For ease of machining, described casting and processing datum, processing datum and hole machined, between hole machined and making link bolt hole, be provided with scribe step.
Above content is the further description done the present invention in conjunction with concrete preferred embodiment, can not assert that the specific embodiment of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, not departing from other embodiments drawn under technical scheme of the present invention, all should be included in protection scope of the present invention.
Claims (4)
1. be beneficial to the processing method of the bearing block quality of production, comprise the following steps that order is carried out: casting, processing datum, hole machined, making link bolt hole, is characterized in that, described processing datum is the end face of turned blank;
Described hole machined is process the center hole be positioned in described end face axial, hole machined comprises roughing hole and Finish Machining Bore two steps, described roughing hole is that the drill bit adopting diameter to be less than bearing block center hole intended diameter carries out through hole to blank and drills, and obtains pre-holes drilled through;
Described Finish Machining Bore is adopt boring cutter to carry out expanding treatment to pre-holes drilled through respectively by the two ends of pre-holes drilled through, the last center hole arrived as concentric different diameter hole.
2. the processing method being beneficial to the bearing block quality of production according to claim 1, is characterized in that, the depth of cut numerical value of described boring cutter on center hole axis is within the scope of 20mm-60mm.
3. the processing method being beneficial to the bearing block quality of production according to claim 1, is characterized in that, described processing datum be adopt sawing machine, planer, end face is processed as plane by least one in grinding machine three.
4. according to the processing method being beneficial to the bearing block quality of production in Claims 1-4 described in any one, it is characterized in that, described casting and processing datum, processing datum and hole machined, between hole machined and making link bolt hole, be provided with scribe step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410402763.9A CN104259761A (en) | 2014-08-17 | 2014-08-17 | Machining method beneficial to bearing seat production quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410402763.9A CN104259761A (en) | 2014-08-17 | 2014-08-17 | Machining method beneficial to bearing seat production quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104259761A true CN104259761A (en) | 2015-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410402763.9A Pending CN104259761A (en) | 2014-08-17 | 2014-08-17 | Machining method beneficial to bearing seat production quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104259761A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002110A (en) * | 2016-08-03 | 2016-10-12 | 泉州市德源轴承实业有限公司 | Machining method for bearing seat |
| CN108772737A (en) * | 2018-06-04 | 2018-11-09 | 成都久和建设设备有限责任公司 | A kind of bearing block turning process and its frock clamp |
| CN109483169A (en) * | 2018-11-30 | 2019-03-19 | 雄邦压铸（南通）有限公司 | A method of increasing automobile engine using new energy resources oil sump bushing and takes off pull out force |
| CN111250929A (en) * | 2020-01-18 | 2020-06-09 | 浙江农业商贸职业学院 | Machining method for preventing roundness of bearing hole of bearing pedestal from being poor in locking state |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392801A (en) * | 2008-06-17 | 2009-03-25 | 王登科 | Method for manufacturing rolling bearing seat by adopting welding process |
| CN101480773A (en) * | 2009-01-22 | 2009-07-15 | 苏州利达铸造有限公司 | Method for processing bearing support |
| KR100921902B1 (en) * | 2008-04-14 | 2009-10-14 | 삼익정공(주) | A Round Shaft Support Manufacturing Method in the Linear Bushing and the Round Shaft Support manufactured by Its Method |
| CN102101231A (en) * | 2011-02-28 | 2011-06-22 | 瓦房店轴承砂轮制造有限公司 | Processing technique for external ball seat of split oscillating bearing |
| CN202867579U (en) * | 2012-09-21 | 2013-04-10 | 北京沙河冶金机械制造有限公司 | Novel bearing seat |
-
2014
- 2014-08-17 CN CN201410402763.9A patent/CN104259761A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100921902B1 (en) * | 2008-04-14 | 2009-10-14 | 삼익정공(주) | A Round Shaft Support Manufacturing Method in the Linear Bushing and the Round Shaft Support manufactured by Its Method |
| CN101392801A (en) * | 2008-06-17 | 2009-03-25 | 王登科 | Method for manufacturing rolling bearing seat by adopting welding process |
| CN101480773A (en) * | 2009-01-22 | 2009-07-15 | 苏州利达铸造有限公司 | Method for processing bearing support |
| CN102101231A (en) * | 2011-02-28 | 2011-06-22 | 瓦房店轴承砂轮制造有限公司 | Processing technique for external ball seat of split oscillating bearing |
| CN202867579U (en) * | 2012-09-21 | 2013-04-10 | 北京沙河冶金机械制造有限公司 | Novel bearing seat |
Non-Patent Citations (2)
| Title |
|---|
| 周昌锐等: "《简明镗工手册》", 30 November 1989 * |
| 赵如福: "《金属机械加工工艺人员手册》", 31 October 2006 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002110A (en) * | 2016-08-03 | 2016-10-12 | 泉州市德源轴承实业有限公司 | Machining method for bearing seat |
| CN108772737A (en) * | 2018-06-04 | 2018-11-09 | 成都久和建设设备有限责任公司 | A kind of bearing block turning process and its frock clamp |
| CN108772737B (en) * | 2018-06-04 | 2023-12-05 | 成都久和建设设备有限责任公司 | Bearing seat turning process and fixture thereof |
| CN109483169A (en) * | 2018-11-30 | 2019-03-19 | 雄邦压铸（南通）有限公司 | A method of increasing automobile engine using new energy resources oil sump bushing and takes off pull out force |
| CN111250929A (en) * | 2020-01-18 | 2020-06-09 | 浙江农业商贸职业学院 | Machining method for preventing roundness of bearing hole of bearing pedestal from being poor in locking state |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20150107 |