CN113385711A - Processing method of special-shaped structure sealing groove of angular contact bearing - Google Patents
Processing method of special-shaped structure sealing groove of angular contact bearing Download PDFInfo
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- CN113385711A CN113385711A CN202110455655.8A CN202110455655A CN113385711A CN 113385711 A CN113385711 A CN 113385711A CN 202110455655 A CN202110455655 A CN 202110455655A CN 113385711 A CN113385711 A CN 113385711A
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- sealing groove
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- deflection angle
- main deflection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
Abstract
The invention relates to a processing method of a sealing groove of an angular contact bearing special-shaped structure, which comprises the following steps when a vehicle returns to the sealing groove: adopting a boring cutter bar with a main deflection angle of 93 degrees and a 35-degree diamond blade to process a processing area below the notch; adopting a boring cutter bar with a main deflection angle of 52 degrees and a 35-degree diamond blade to process a plane with a sealing groove and an axial included angle of 52 degrees and an axial included angle of 5 degrees; and processing the rest part in the bottom of the sealing groove by adopting a boring cutter bar with a main deflection angle of 108 degrees and a diamond blade with a main deflection angle of 35 degrees. According to the method, the technical problem of processing the special-shaped groove with a small groove opening and a large inner cavity is solved by selecting a plurality of boring cutter bars and utilizing numerical control equipment through program control, the processing level and the processing capacity of the special-shaped sealing groove can be effectively improved, and innovation is realized in the field of bearing processing.
Description
Technical Field
The invention relates to a method for processing a sealing groove of an angular contact bearing special-shaped structure.
Background
The bearing sealing quality directly influences the life-span of bearing, and sealed inefficacy will make the lubricated state of bearing worsen, along with the development of mechanical industry, requires more and more high to angular contact ball bearing's leakproofness, because traditional seal structure often appears wearing and tearing seriously and leak the fat phenomenon, has seriously influenced the result of use of bearing, and the structure of seal groove has a 45 slope for notch department usually, as shown in figure 1, in the seal groove is embedded into with certain elasticity interference.
In order to prolong the service life of the bearing, the sealing ring is not easy to fall off and has good sealing effect, the structure of the sealing groove is improved on the original basis, and a slope with an included angle of 52 degrees is added below the improved sealing groove, as shown in figure 2, so that the sealing ring can be firmly fixed in the sealing groove, and the sealing ring is firmly installed and is not easy to fall off. The machining of the sealing groove is an important process, and in order to prevent heat treatment deformation, the sealing groove is generally hard machined after additional tempering.
The prior art is very mature for the conventional sealing structure processing technology, and a main deflection angle of 93-degree boring cutter bar and a 35-degree diamond-shaped cutter blade are usually adopted for processing by a numerical control machine tool. The improved sealing groove is small in opening and large in inner cavity, so that a conventional machine clamping cutter rod and a conventional machine clamping cutter blade can interfere with slopes of 45 degrees and 52 degrees, a cutter cannot be normally machined, and difficulty is increased for machining the sealing groove.
Disclosure of Invention
The invention aims to solve the technical problem of processing a sealing groove of a special-shaped structure of a bearing and provides a processing method of the sealing groove of the special-shaped structure of an angular contact bearing.
The technical scheme adopted by the invention is as follows: a processing method of a sealing groove of an angular contact bearing special-shaped structure comprises the following steps of firstly, symmetrically processing two inner steps at two sides during turning, and is characterized in that the following steps are adopted when the sealing groove is returned to the turning: (1) adopting a boring cutter bar with a main deflection angle of 93 degrees and a 35-degree diamond blade to process a processing area below the notch; (2) a boring cutter bar with a main deflection angle of 52 degrees and a 35-degree diamond blade are adopted to process a plane with a sealing groove, an axial included angle of 52 degrees is a slope, and an axial included angle of 5 degrees is a plane; (3) a boring cutter bar with a main deflection angle of 93 degrees and a 35-degree diamond blade are adopted to make a 45-degree slope, and a part of the bottom of the sealing groove is processed under the interference of a cutter; (4) and (3) processing the rest part in the step (3) of sealing groove bottom by adopting a boring cutter bar with a main deflection angle of 108 degrees and a diamond blade with a main deflection angle of 35 degrees.
According to the method, a plurality of boring cutter bars are selected, numerical control equipment is utilized to perform program control, the technical problem of machining of the special-shaped groove with a small groove opening and a large inner cavity is solved, the movement track of the cutting tool is accurately set by programming through four cutters in the whole process, reasonable cutting parameters are selected to prolong the service life of the cutting tool, the method can effectively improve the machining level and the machining capacity of the special-shaped sealing groove, and innovation is realized in the field of bearing machining.
Drawings
Fig. 1 is a schematic view of a conventional structure of a sealing groove.
Fig. 2 is a schematic view of a modified structure of the sealing groove.
Fig. 3 is a schematic view of the sealing groove before and after machining.
FIG. 4 is a schematic view of a machining process of a diamond insert with a main deflection angle of 93 degrees and a diamond shape of 35 degrees.
Fig. 5 is a schematic diagram of a 52 ° main deflection angle and 35 ° diamond blade machining.
FIG. 6 is a schematic view of a 108 ° master angle, non-standard diamond insert machining.
FIG. 7 is a schematic view of a machining process of a diamond insert with a main deflection angle of 93 degrees and a diamond shape of 35 degrees.
In the figure: the machining method comprises the steps of machining a contour 1 before heat treatment, a required seal groove contour 2, a machining area 3, a ferrule inner diameter 4, a 93-degree main deflection angle boring cutter bar 5, a 52-degree main deflection angle boring cutter bar 6, a 108-degree main deflection angle boring cutter bar 7 and a 35-degree diamond blade 8.
Detailed Description
The invention will be further explained with reference to the drawings.
Firstly, the bearing ring process route.
Turning → heat treatment → initial grinding cycle → first additional tempering → fine grinding cycle → second additional tempering → turning back to the sealing groove → final grinding cycle → superfinishing.
Referring to fig. 3, when the bearing ring is lathed, two inner steps, namely a machining profile 1 before heat treatment and a required sealing groove profile 2, are symmetrically machined on two sides.
And thirdly, the machining of the return vehicle sealing groove comprises the following steps.
1. Referring to fig. 4, in the first step, a 35-degree diamond blade 8 is mounted on a 93-degree main deflection angle boring cutter bar 5, the end face of the sealing groove in the inner diameter direction is machined, the rotating speed of a main shaft is 400r/min, the single cutting depth is 0.05mm, the end face allowance in the inner diameter direction is removed, and interference caused by machining in a post-process is avoided.
2. Referring to fig. 5, in the second step, a 35-degree diamond-shaped blade 8 is installed on a 52-degree main deflection angle boring cutter bar 6, a 52-degree slope of a sealing groove and a 5-degree included angle end face tightly attached to a sealing ring are machined, the rotating speed of a main shaft is 400r/min, and the single cutting depth is 0.05 mm.
3. Referring to fig. 6, in the third step, a 35-degree diamond blade 8 is installed on a 93-degree main deflection angle boring cutter bar 5, the slope at the upper part of a sealing groove is machined, the slope angle is 45 degrees, only one part of the root can be machined due to cutter interference, the rotating speed of a main shaft is 400r/min, and the single cutting depth is 0.05 mm.
4. Referring to fig. 7, in the fourth step, a 35-degree diamond-shaped blade 8 is installed on a 108-degree main deflection angle boring cutter rod 7 and is used for machining the rest part of the bottom of the groove, and the single cutting feed of the spindle is 0.05mm at the spindle rotation speed of 300 r/min.
In the whole process, the movement track of the cutting tool is accurately set by programming through four cutters, and the service life of the cutting tool is prolonged by selecting reasonable cutting parameters.
Claims (1)
1. A processing method of a sealing groove of an angular contact bearing special-shaped structure comprises the following steps of firstly, symmetrically processing two inner steps at two sides during turning, and is characterized in that the following steps are adopted when the sealing groove is returned to the turning: (1) adopting a boring cutter bar with a main deflection angle of 93 degrees and a 35-degree diamond blade to process a processing area below the notch; (2) a boring cutter bar with a main deflection angle of 52 degrees and a 35-degree diamond blade are adopted to process a plane with a sealing groove, an axial included angle of 52 degrees is a slope, and an axial included angle of 5 degrees is a plane; (3) a boring cutter bar with a main deflection angle of 93 degrees and a 35-degree diamond blade are adopted to make a 45-degree slope, and a part of the bottom of the sealing groove is processed under the interference of a cutter; (4) and (3) processing the rest part in the step (3) of sealing groove bottom by adopting a boring cutter bar with a main deflection angle of 108 degrees and a diamond blade with a main deflection angle of 35 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110455655.8A CN113385711A (en) | 2021-04-26 | 2021-04-26 | Processing method of special-shaped structure sealing groove of angular contact bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110455655.8A CN113385711A (en) | 2021-04-26 | 2021-04-26 | Processing method of special-shaped structure sealing groove of angular contact bearing |
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| Publication Number | Publication Date |
|---|---|
| CN113385711A true CN113385711A (en) | 2021-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110455655.8A Pending CN113385711A (en) | 2021-04-26 | 2021-04-26 | Processing method of special-shaped structure sealing groove of angular contact bearing |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201659297U (en) * | 2010-04-26 | 2010-12-01 | 中国石油天然气集团公司 | Compound cutter bar for processing of oil well pipe thread buckle |
| CN104625092A (en) * | 2014-12-19 | 2015-05-20 | 常熟市常轴轴承有限公司 | Sealing groove turning process for self-aligning roller bearing |
| CN105605025A (en) * | 2015-11-20 | 2016-05-25 | 安徽安通机械有限公司 | Middle cylinder with oblique groove structure and machining method thereof |
| CN206139855U (en) * | 2016-10-13 | 2017-05-03 | 大连冶金轴承股份有限公司 | Deep groove ball bearing seal groove turning molding cutting tool/molding cutter |
| CN108161340A (en) * | 2016-12-08 | 2018-06-15 | 新昌县嘉德科技发展有限公司 | A kind of processing technology of deep ditch ball bearing ring |
| CN109277584A (en) * | 2018-11-09 | 2019-01-29 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of efficient method for turning of high temperature alloy integral wheel |
| CN109622992A (en) * | 2018-11-17 | 2019-04-16 | 宁夏共享精密加工有限公司 | A kind of processing method of revolving body deep trouth |
-
2021
- 2021-04-26 CN CN202110455655.8A patent/CN113385711A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201659297U (en) * | 2010-04-26 | 2010-12-01 | 中国石油天然气集团公司 | Compound cutter bar for processing of oil well pipe thread buckle |
| CN104625092A (en) * | 2014-12-19 | 2015-05-20 | 常熟市常轴轴承有限公司 | Sealing groove turning process for self-aligning roller bearing |
| CN105605025A (en) * | 2015-11-20 | 2016-05-25 | 安徽安通机械有限公司 | Middle cylinder with oblique groove structure and machining method thereof |
| CN206139855U (en) * | 2016-10-13 | 2017-05-03 | 大连冶金轴承股份有限公司 | Deep groove ball bearing seal groove turning molding cutting tool/molding cutter |
| CN108161340A (en) * | 2016-12-08 | 2018-06-15 | 新昌县嘉德科技发展有限公司 | A kind of processing technology of deep ditch ball bearing ring |
| CN109277584A (en) * | 2018-11-09 | 2019-01-29 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of efficient method for turning of high temperature alloy integral wheel |
| CN109622992A (en) * | 2018-11-17 | 2019-04-16 | 宁夏共享精密加工有限公司 | A kind of processing method of revolving body deep trouth |
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Application publication date: 20210914 |