CN110666463B - Processing technology for oil grooves of inner ring and outer sleeve of tapered roller bearing - Google Patents
Processing technology for oil grooves of inner ring and outer sleeve of tapered roller bearing Download PDFInfo
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- CN110666463B CN110666463B CN201911045371.0A CN201911045371A CN110666463B CN 110666463 B CN110666463 B CN 110666463B CN 201911045371 A CN201911045371 A CN 201911045371A CN 110666463 B CN110666463 B CN 110666463B
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- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
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- 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 machining process for oil grooves of an inner ring and an outer sleeve of a tapered roller bearing, which is suitable for machining the oil grooves of the inner ring and the outer sleeve of the tapered roller bearing in different shapes and belongs to the technical field of turning process machining. The machining process comprises an outer sleeve oil groove machining process and an inner ring oil groove machining process, wherein the outer sleeve oil groove machining process and the inner ring oil groove machining process comprise machining of oil grooves with different shapes, the shape of a cutter bar is changed by grinding a cutter blade, the shape of the cutter bar is changed, and the installation angle is changed to machine the oil grooves of the inner ring and the outer sleeve of the tapered roller bearing with different shapes; the cutter feeding angle can be adjusted by modifying the cutter bar, so that the machining requirements of the oil grooves with various shapes of the inner ring can be met.
Description
Technical Field
The invention relates to a machining process for oil grooves of an inner ring and an outer sleeve of a tapered roller bearing, which is suitable for machining the oil grooves of the inner ring and the outer sleeve of the tapered roller bearing in different shapes and belongs to the technical field of turning process machining.
Background
In the machining of the inner ring and the outer sleeve oil grooves of the tapered roller bearing, a welding cutter is generally adopted in the traditional method, and the cutter is manually ground by a comparison method, so that the design requirements of the cutter and a product are mutually unified, and the method has the problems; the width tolerance between the design of the sharpening sample plate and the bearing oil groove is smaller and too wide, the integral structural strength of a part can be influenced, the sharpening sample plate is too narrow, the repeated use times of the cutter are limited, the functions of oil storage, dust storage and raceway grinding overrun can not be achieved, and the sharpening sample plate and the bearing oil groove are often considered in actual operation.
Disclosure of Invention
In order to solve the problems that the durability of a cutter is influenced by human factors, the oil groove is wide and narrow, the outline graph changes and the like, the invention crudely abandons the independent oil groove procedure in the original process and provides the machining process of the inner ring and the outer sleeve oil groove of the tapered roller bearing, which is suitable for the requirement of large-scale integrated production.
In order to achieve the purpose, the invention adopts the technical scheme that: tapered roller bearing inner circle, overcoat oil groove processing technology, including overcoat oil groove manufacturing procedure, inner circle oil groove manufacturing procedure, overcoat oil groove processing and inner circle oil groove processing all include the processing of different shape oil grooves, and concrete step is as follows:
a. the machining of different outer sleeve oil grooves comprises oil groove machining under the condition of adopting a non-grinding blade and oil groove machining under the condition of adopting a grinding blade;
(1) the width of an oil groove processed by the non-grinding cutter blade is not limited, specifically, the oil groove is processed at any angle within 90 degrees in the L direction, and the angle in the R direction is not less than 35 degrees;
(2) processing an oil groove with the narrowest width of 0.8 mm and the angle of 90 degrees by adopting a coping blade;
b. processing oil grooves of different inner rings: modifying the cutter bar to adjust the cutter feeding angle;
the cutter adopted in the steps a and b is a mechanically clamped cutter; the machining of the outer sleeve oil groove adopts an inner hole cutter bar with the model number of S40U-SVLFCL-16; the inner ring oil groove is processed by adopting an outer diameter cutter bar with the model of SVXCL 2525M-16; the cutter blade all adopts 35 rhombus blades of 7 relief angles in overcoat, inner circle oil groove processing frame cutter, and the model is: VCMP 160408-SM;
the blade grinding method in the step a (2) comprises the following steps: the tip R of the VCMP160408-SM blade is 0.8, and the blade is arranged on a waste and unused cutter rod, such as: the SVXCL2525M-16 outer diameter cutter bar mainly aims to be convenient to hold and safe when the cutter blade is ground. Grinding the width; grinding a side cutting edge on the principle of not damaging R0.8, and if the width of an oil groove of a processed part is too wide, adopting a tool nose R1.2 or increasing the width by a program. Grinding the length; the principle that the cutting depth is small and abundant without damaging the clamping surface of the blade is taken as a principle, and the strength of the tool nose is fully considered.
The cutter bar is modified in the step b to solve the problem that the cutter feeding angle conforms to the technical requirement; the problem that the cutter feeding angle conforms to the technical requirement is solved.
The path of the cutter for processing the shape of the first jacket oil groove without grinding the cutter blade in the step a is as follows: the cutter enters from the circulation starting point to perform the first rough turning and returning, then enters the second rough turning and returning, then enters the third rough turning and returning, and then enters the finish machining and returns to the tool retracting point along the track, so that the whole first jacket oil groove shape is machined, wherein the machining track is shown in figure 1;
the path of the cutter for processing the shape of the second jacket oil groove without grinding the cutter blade in the step a is as follows: the cutter enters from the circulation starting point to perform the first rough turning and returning, then enters the second rough turning and returning, and then enters the finish machining to return to the tool withdrawal point along the track, so that the whole second jacket oil groove shape is machined, wherein the machining track is shown in fig. 3;
in the step a, (2) the path of the cutter for grinding the cutter to process the shape of the third jacket oil groove is as follows: the cutter enters from the circulation starting point to perform transverse cutting, the cutting direction is changed after the transverse cutting to perform longitudinal cutting, the cutter returns to the tool withdrawal point along the cutting track after the longitudinal cutting, the whole third type of machining of the shape of the oil groove of the jacket is completed, and the machining track is shown in figure 5;
the blade used for processing the first and second outer sleeve oil groove shapes in the step (1) is shown in FIG. 7;
the third outer jacket oil groove shape processing in the step (1) is performed by using a cutter blade as shown in fig. 8.
And b, modifying the cutter bar in the step b to adjust the cutter feed angle to process a first inner ring oil groove shape according to the cutter path: the cutter with an angle of 45 degrees with the horizontal angle enters fast forward cutting from the starting point, the cutting angle is changed to carry out horizontal cutting after cutting, the cutter is rotated anticlockwise for 90 degrees after horizontal cutting, then the cutter is rotated clockwise to carry out horizontal cutting with a feed track, and then fast backward is carried out to a tool withdrawal point, wherein the processing track is shown in figure 9;
and c, modifying the cutter bar in the step b to adjust the cutter feed angle and processing a second inner ring oil groove shape according to the cutter path: cutting is carried out on the cutter which forms an angle of 45 degrees with the horizontal angle from the initial point, the direction of the cutter is changed to return the cutter to the cutter withdrawing point along the original track after cutting, and the processing track is shown in figure 11;
and c, modifying the cutter bar in the step b to adjust the cutter feed angle and processing a third cutter path with the shape of the inner ring oil groove: feeding and cutting chips in the vertical direction of the cutter, changing the direction of the cutter, and returning the cutter along the original track to a tool withdrawal point, wherein the processing track is shown in fig. 13;
the invention has the beneficial effects that:
the oil grooves with different shapes of the inner ring and the outer sleeve of the tapered roller bearing are processed by grinding the blade to change the shape of the blade, changing the shape of the cutter bar and changing the installation angle, and the problems of the original high center of the cutter bar, the vibration lines generated by the overlong overhanging length of the cutter bar, the width and shape control in the grinding process of the cutter and poor durability are solved by using a specific machine-clamped cutter, so that the requirements of convenient replacement, operation and adjustment and realization of qualitative and controllable mass production are met; the cutter feeding angle can be adjusted by modifying the cutter bar, so that the machining requirements of the oil grooves with various shapes of the inner ring can be met. The problems that the durability of the cutter is affected by human factors, the width and the width of an oil groove, the variation of a contour figure and the like are solved well, and the aim of processing the oil grooves in different shapes by applying the cutter without sharpening is fulfilled.
Drawings
FIG. 1 is a tool path diagram for machining a first jacket oil groove configuration.
Fig. 2 is a view showing a first configuration of the jacket oil groove.
FIG. 3 is a tool path diagram for machining a second jacket oil groove configuration.
Fig. 4 is a structural view showing a second jacket oil groove shape in fig. 2.
FIG. 5 is a tool path diagram for machining a third jacket oil groove shape.
FIG. 6 is a view showing a structure of a third jacket oil groove shape.
FIG. 7 is a drawing of a blade used in the first and second outer jacket oil groove shape machining.
Fig. 8 is a diagram of a third insert used in forming the jacket oil groove.
Fig. 9 is a tool path diagram for machining a first inner race groove shape.
Fig. 10 is a view showing a structure of a first inner ring oil groove shape.
FIG. 11 is a tool path diagram for machining a second inner race groove shape.
Fig. 12 is a structural view showing a second inner ring oil groove shape.
Fig. 13 is a tool path diagram for machining a third inner race groove shape.
Fig. 14 is a view showing a structure of a third inner race oil groove shape.
FIG. 15 is a view showing a structure of a normal cutter before modification.
Fig. 16 is a modified tool configuration view.
Fig. 17 is a diagram showing the effect of the modified tool mounting.
In the figure, 1, rough turning 1, 2, rough turning 2, 3, rough turning 4, finish turning 5, a tool cycle starting point, 6 and a tool end retracting point.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments. The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Tapered roller bearing inner circle, overcoat oil groove processing technology, including overcoat oil groove manufacturing procedure, inner circle oil groove manufacturing procedure, overcoat oil groove processing and inner circle oil groove processing all include the processing of different shape oil grooves, and concrete step is as follows:
a. the machining of different outer sleeve oil grooves comprises oil groove machining under the condition of adopting a non-grinding blade and oil groove machining under the condition of adopting a grinding blade;
(1) the width of an oil groove processed by the non-grinding cutter blade is not limited, specifically, the oil groove is processed at any angle within 90 degrees in the L direction, and the angle in the R direction is not less than 35 degrees;
(2) processing an oil groove with the narrowest width of 0.8 mm and the angle of 90 degrees by adopting a coping blade;
b. processing oil grooves of different inner rings: modifying the cutter bar to adjust the cutter feeding angle;
the path of the cutter for processing the shape of the first jacket oil groove without grinding the cutter blade in the step a is as follows: the cutter enters from the circulation starting point to perform the first rough turning and returning, then enters the second rough turning and returning, then enters the third rough turning and returning, and then enters the finish machining and returns to the tool retracting point along the track, so that the whole machining of the shape of the first jacket oil groove is completed, and the machining track is shown in figure 1.
And b, modifying the cutter bar in the step b to adjust the cutter feed angle to process a first inner ring oil groove shape according to the cutter path: the cutter with an angle of 45 degrees with the horizontal angle enters fast forward cutting from the starting point, the cutting angle is changed to carry out horizontal cutting after cutting, the cutter is rotated anticlockwise for 90 degrees after horizontal cutting, then the cutter is rotated clockwise to carry out horizontal cutting with a feed track, and then fast backward is carried out to a tool withdrawal point, wherein the processing track is shown in figure 9;
example 2
Tapered roller bearing inner circle, overcoat oil groove processing technology, including overcoat oil groove manufacturing procedure, inner circle oil groove manufacturing procedure, overcoat oil groove processing and inner circle oil groove processing all include the processing of different shape oil grooves, and concrete step is as follows:
a. the machining of different outer sleeve oil grooves comprises oil groove machining under the condition of adopting a non-grinding blade and oil groove machining under the condition of adopting a grinding blade;
(1) the width of an oil groove processed by the non-grinding cutter blade is not limited, specifically, the oil groove is processed at any angle within 90 degrees in the L direction, and the angle in the R direction is not less than 35 degrees;
(2) processing an oil groove with the narrowest width of 0.8 mm and the angle of 90 degrees by adopting a coping blade;
b. processing oil grooves of different inner rings: modifying the cutter bar to adjust the cutter feeding angle;
the path of the cutter for processing the shape of the second jacket oil groove without grinding the cutter blade in the step a is as follows: the cutter enters from the circulation starting point to perform the first rough turning and returning, then enters the second rough turning and returning, and then enters the finish machining to return to the tool withdrawal point along the track, so that the whole second jacket oil groove shape is machined, wherein the machining track is shown in fig. 3;
and c, modifying the cutter bar in the step b to adjust the cutter feed angle and processing a second inner ring oil groove shape according to the cutter path: cutting is carried out on the cutter which forms an angle of 45 degrees with the horizontal angle from the initial point, the direction of the cutter is changed to return the cutter to the cutter withdrawing point along the original track after cutting, and the processing track is shown in figure 11;
example 3
Tapered roller bearing inner circle, overcoat oil groove processing technology, including overcoat oil groove manufacturing procedure, inner circle oil groove manufacturing procedure, overcoat oil groove processing and inner circle oil groove processing all include the processing of different shape oil grooves, and concrete step is as follows:
a. the machining of different outer sleeve oil grooves comprises oil groove machining under the condition of adopting a non-grinding blade and oil groove machining under the condition of adopting a grinding blade;
(1) the width of an oil groove processed by the non-grinding cutter blade is not limited, specifically, the oil groove is processed at any angle within 90 degrees in the L direction, and the angle in the R direction is not less than 35 degrees;
(2) processing an oil groove with the narrowest width of 0.8 mm and the angle of 90 degrees by adopting a coping blade;
b. processing oil grooves of different inner rings: modifying the cutter bar to adjust the cutter feeding angle;
in the step a, (2) the path of the cutter for grinding the cutter to process the shape of the third jacket oil groove is as follows: the cutter enters from the circulation starting point to perform transverse cutting, the cutting direction is changed after the transverse cutting to perform longitudinal cutting, the cutter returns to the tool withdrawal point along the cutting track after the longitudinal cutting, the whole third type of machining of the shape of the oil groove of the jacket is completed, and the machining track is shown in figure 5;
and c, modifying the cutter bar in the step b to adjust the cutter feed angle and processing a third cutter path with the shape of the inner ring oil groove: the cutting tool is fed with chips in the vertical direction, then the direction of the cutting tool is changed, and the cutting tool is fed back along the original track to the tool withdrawal point, and the processing track is shown in fig. 13.
Claims (8)
1. The machining process of the oil grooves of the inner ring and the outer sleeve of the tapered roller bearing is characterized in that: including overcoat oil groove manufacturing procedure, inner circle oil groove manufacturing procedure, overcoat oil groove processing and inner circle oil groove processing all include the processing of different shape oil grooves, and concrete step is as follows:
a. the machining of different outer sleeve oil grooves comprises oil groove machining under the condition of adopting a non-grinding blade and oil groove machining under the condition of adopting a grinding blade;
(1) the width of an oil groove processed by the non-grinding cutter blade is not limited, specifically, the oil groove is processed at any angle within 90 degrees in the L direction, and the angle in the R direction is not less than 35 degrees;
(2) processing an oil groove with the narrowest width of 0.8 mm and the angle of 90 degrees by adopting a coping blade;
b. processing oil grooves of different inner rings: modifying the cutter bar to adjust the cutter feeding angle; the oil grooves with different shapes of the inner ring and the outer sleeve of the tapered roller bearing are processed by grinding the blade to change the shape of the blade and changing the shape of the cutter bar.
2. The tapered roller bearing inner ring and outer sleeve oil groove processing technology of claim 1, characterized in that: the cutter adopted in the steps a and b is a mechanically clamped cutter; the machining of the outer sleeve oil groove adopts an inner hole cutter bar with the model number of S40U-SVLFCL-16; the inner ring oil groove is processed by adopting an outer diameter cutter bar with the model of SVXCL 2525M-16; the cutter blade in the jacket and inner ring oil groove processing machine clamp cutter all adopts a 35-degree rhombic cutter blade with a 7-degree back angle, and the model is as follows: VCMP 160408-SM.
3. The tapered roller bearing inner ring and outer sleeve oil groove processing technology of claim 1, characterized in that: the path of the cutter for processing the shape of the first jacket oil groove without grinding the cutter blade in the step a is as follows: and the cutter enters from the circulation starting point to perform the first rough turning and returning, then enters into the second rough turning and returning, then enters into the third rough turning and returning, and then enters into the finish machining and returns to the tool retracting point along the track, so that the whole first jacket oil groove shape is machined.
4. The tapered roller bearing inner ring and outer sleeve oil groove processing technology of claim 1, characterized in that: the path of the cutter for processing the shape of the second jacket oil groove without grinding the cutter blade in the step a is as follows: and the cutter enters from the cycle starting point to perform primary rough turning and returning, then enters into secondary rough turning and returning, and then enters into finish machining and returns to the tool withdrawal point along the track, so that the whole second type of outer sleeve oil groove shape machining is completed.
5. The tapered roller bearing inner ring and outer sleeve oil groove processing technology of claim 1, characterized in that: in the step a, (2) the path of the cutter for grinding the cutter to process the shape of the third jacket oil groove is as follows: and the cutter enters from the circulation starting point to perform transverse cutting, the cutting direction is changed after the transverse cutting to perform longitudinal cutting, and the cutter returns to the tool withdrawal point along the cutting track after the longitudinal cutting to finish the processing of the shape of the whole third jacket oil groove.
6. The tapered roller bearing inner ring and outer sleeve oil groove processing technology of claim 1, characterized in that: and b, modifying the cutter bar in the step b to adjust the cutter feed angle to process a first inner ring oil groove shape according to the cutter path: and the cutter with an angle of 45 degrees with the horizontal angle enters fast forward cutting from the starting point, the cutting angle is changed to carry out horizontal cutting after cutting, the cutter is rotated anticlockwise for 90 degrees after horizontal cutting, then the cutter is rotated clockwise to carry out horizontal cutting with the feed track, and then the cutter is fast retracted to the tool retracting point.
7. The tapered roller bearing inner ring and outer sleeve oil groove processing technology of claim 1, characterized in that: and c, modifying the cutter bar in the step b to adjust the cutter feed angle and processing a second inner ring oil groove shape according to the cutter path: and the cutter with an angle of 45 degrees with the horizontal angle enters into the cutting from the initial point, and the direction of the cutter is changed to return the cutter to the cutter withdrawing point along the original track after cutting.
8. The tapered roller bearing inner ring and outer sleeve oil groove processing technology of claim 1, characterized in that: and c, modifying the cutter bar in the step b to adjust the cutter feed angle and processing a third cutter path with the shape of the inner ring oil groove: feeding and cutting the cutter in the vertical direction, and then changing the direction of the cutter to return the cutter to a cutter withdrawal point along the original track.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911045371.0A CN110666463B (en) | 2019-10-30 | 2019-10-30 | Processing technology for oil grooves of inner ring and outer sleeve of tapered roller bearing |
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| CN201911045371.0A CN110666463B (en) | 2019-10-30 | 2019-10-30 | Processing technology for oil grooves of inner ring and outer sleeve of tapered roller bearing |
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| CN110666463A CN110666463A (en) | 2020-01-10 |
| CN110666463B true CN110666463B (en) | 2021-06-01 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4193179A (en) * | 1977-11-14 | 1980-03-18 | Condor Manufacturing Inc. | Process of manufacturing an article having a groove rolled therein, and an article produced thereby |
| DE4134220A1 (en) * | 1990-10-29 | 1992-04-30 | Volkswagen Ag | Device for adjusting relative angular positions of two machine parts - uses two coaxial cylinders rotated in opposite directions by hydraulic drive |
| CN201799673U (en) * | 2010-09-06 | 2011-04-20 | 安徽全柴锦天机械有限公司 | Two-station mechanism for machining main bearing seat, oil groove and tile groove |
| CN106312107A (en) * | 2016-10-28 | 2017-01-11 | 大理兹飞科技有限公司 | Telescopic tool for machining large-diameter inner hole by numerical control lathe |
| CN207495095U (en) * | 2017-10-23 | 2018-06-15 | 泛科轴承集团有限公司 | A kind of bearing oil groove automatic machining device |
-
2019
- 2019-10-30 CN CN201911045371.0A patent/CN110666463B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4193179A (en) * | 1977-11-14 | 1980-03-18 | Condor Manufacturing Inc. | Process of manufacturing an article having a groove rolled therein, and an article produced thereby |
| DE4134220A1 (en) * | 1990-10-29 | 1992-04-30 | Volkswagen Ag | Device for adjusting relative angular positions of two machine parts - uses two coaxial cylinders rotated in opposite directions by hydraulic drive |
| CN201799673U (en) * | 2010-09-06 | 2011-04-20 | 安徽全柴锦天机械有限公司 | Two-station mechanism for machining main bearing seat, oil groove and tile groove |
| CN106312107A (en) * | 2016-10-28 | 2017-01-11 | 大理兹飞科技有限公司 | Telescopic tool for machining large-diameter inner hole by numerical control lathe |
| CN207495095U (en) * | 2017-10-23 | 2018-06-15 | 泛科轴承集团有限公司 | A kind of bearing oil groove automatic machining device |
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| CN110666463A (en) | 2020-01-10 |
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