CN108127339A - The processing method of external splines concentricity in a kind of guarantee hollow shaft - Google Patents
The processing method of external splines concentricity in a kind of guarantee hollow shaft Download PDFInfo
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- CN108127339A CN108127339A CN201711224314.XA CN201711224314A CN108127339A CN 108127339 A CN108127339 A CN 108127339A CN 201711224314 A CN201711224314 A CN 201711224314A CN 108127339 A CN108127339 A CN 108127339A
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- Prior art keywords
- column
- concentricity
- external splines
- hollow shaft
- processing
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The concentricity processing technique field disclosed by the invention for belonging to hollow shaft, specially a kind of processing method for ensureing external splines concentricity in hollow shaft, the specific procedure of processing of the processing method of external splines concentricity is as follows in the guarantee hollow shaft：S1：The corrosion part vehicle of blank column outer wall to be processed is gone, and total length as needed carries out the length cutting of blank cylinder, there are allowance in diametric(al) and length, the left end of column after cutting is clamped in the rotation output terminal of lathe, test and adjust column cause column lathe rotation output terminal drive rotation in the case of circle bounce difference be less than or equal to 0.04mm；The processing method of external splines concentricity in the guarantee hollow shaft, the scales such as crosspoint, scribing line can be retained by way of scribing line, improve machining accuracy, substep processing improves precision, pass through the centralized positioning at both ends so that the concentricity of the interior external splines of hollow shaft is higher.
Description
Technical field
The present invention relates to the concentricity processing technique field of hollow shaft, external splines is coaxial in specially a kind of guarantee hollow shaft
The processing method of degree.
Background technology
At present, in the prior art, ensure the processing of the inside and outside spline concentricity of hollow shaft, annoying each processing skill always
Art field, positioning datum is not unified always with centering benchmark when processing inside and outside spline, and traditional processing technology is：Rough turn-mill
Splined hole-going to block up-insert internal spline with stifled-centering-fine turning outer circle-cylindrical grinding-- inserts external splines.Internal splined hole center at this time
With with institute's processing excircles center after stifled not on a center line.Reason be exactly center after grinding out with stifled, centering, vehicle
Outer circle, cylindrical grinding center be not a benchmark, so causing inside and outside spline ensuring coaxiality not.That is technique
Benchmark is not a benchmark, influences product assembly quality, main to shorten product service life.This processing method is much full
Foot not present high quality of products design requirement, for this purpose, ensureing external splines concentricity in hollow shaft we have proposed a kind of
Processing method.
Invention content
It is above-mentioned to solve the purpose of the present invention is to provide a kind of processing method for ensureing external splines concentricity in hollow shaft
Center after the grinding out proposed in background technology and the center with stifled, centering, turning, cylindrical grinding are not a base
Standard, so causing inside and outside spline ensuring coaxiality not.That is technological datum is not a benchmark, influences Product Assembly
Quality, it is main to shorten product service life.This processing method much can not meet present high quality of products design will
The problem of asking.
To achieve the above object, the present invention provides following technical solution：External splines concentricity in a kind of guarantee hollow shaft
Processing method, the specific procedure of processing of the processing method of external splines concentricity is as follows in the guarantee hollow shaft：
S1：The corrosion part vehicle of blank column outer wall to be processed is gone, and total length as needed carries out blank
The length cutting of cylinder, there are allowance in diametric(al) and length, and the left end of the column after cutting is clamped in
The rotation output terminal of lathe, test and adjust column cause column lathe rotation output terminal drive rotation in the case of
Circle bounce difference is less than or equal to 0.04mm；
S2：To carrying out swedged cutting with spline sections on the right side of the outer wall of the column after axial adjustment in step S1
Processing, the length processed as needed is positioned cuts from right to left, will be carried out on the right side of the cylindrical member portion outer wall after cutting
External splines opens up processing；
S3：Two lines are drawn at the middle part of column right side wall, two lines are 45 °, and two with acute angle formed by horizontal plane
Bar line is mutually perpendicular to, and O points are mutually given at the midpoints of two lines, the length of two lines be reduce on the right side of column it is straight after diameter processing
The length of diameter, then O points are the center of circle of column right side wall, column are mounted on rig floor so that open up the end of external splines
Portion adjusts column towards drill bit so that the axis of column and the axis of drill bit are mutually parallel, and adjust column, drop-down
Drill bit so that the bottom end of drill bit and the contact point of column are O points, at this point, drill bit is coaxial with column, drill bit pushing is to cylinder
Part carries out opening up through-hole, and the radius of through-hole is R1, when trepanning is to left end, the distance of 2mm is stayed to stop trepanning；
S4：Column is exchanged into one end, the spline that inner wall is carried out to the other end of column opens up, same with step S3
Mode is determined the center of circle of the larger end face of column diameter, and the end face larger to column diameter carries out out circular hole, this circle
Hole is coaxial with the through-hole in step S3 and diameter is identical；
S5：After step S4 opens circular hole, carry out opening up internal spline, to the installation axle of the bite of internal spline shear action with
Circular hole coaxial is installed, and is carried out internal spline and is opened up, and the radius of circle where the tooth root of internal spline is R2, internal spline and external splines processing knot
Shu Hou, end and step part to column carry out chamfered；
S6：Surface heat-treatent carries out finishing frosted processing, you can completion of processing according to accurate difference later.
Preferably, allowance is 1-1.2mm in the step S1.
Preferably, the mode for reducing diameter cutting in the step S2 is divided into three steps, and first two steps carry out total cutting size
80%, final step is cut to 100%, and bite is moved slowly and at the uniform velocity when final step carries out.
Preferably, face where the step S5 chamferings and acute angle formed by axis are 45 °.
Preferably, the step of heat treatment of the step S6 be Carburization Treatment, quenching treatment and annealing, the carburizing
It handles as liquid Carburization Treatment.
Compared with prior art, the beneficial effects of the invention are as follows：The processing side of external splines concentricity in the guarantee hollow shaft
Method can retain the scales such as crosspoint, scribing line by way of scribing line, improve machining accuracy, and substep processing improves precision, leads to
Cross the centralized positioning at both ends so that the concentricity of the interior external splines of hollow shaft is higher.
Description of the drawings
Fig. 1 is machine-shaping finished figure of the present invention；
Fig. 2 is the right side wall scribing line figure of column of the present invention；
Fig. 3 is the left side wall scribing line figure that the present invention opens column after sky；
Fig. 4 is that the left side wall of column of the present invention opens up internal spline figure.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
- 4 are please referred to Fig.1, the present invention provides a kind of technical solution：The processing of external splines concentricity in a kind of guarantee hollow shaft
Method, the specific procedure of processing of the processing method of external splines concentricity is as follows in the guarantee hollow shaft：
S1：The corrosion part vehicle of blank column outer wall to be processed is gone, and total length as needed carries out blank
The length cutting of cylinder, there are allowance in diametric(al) and length, and the left end of the column after cutting is clamped in
The rotation output terminal of lathe, test and adjust column cause column lathe rotation output terminal drive rotation in the case of
Circle bounce difference is less than or equal to 0.04mm；
S2：To carrying out swedged cutting with spline sections on the right side of the outer wall of the column after axial adjustment in step S1
Processing, the length processed as needed is positioned cuts from right to left, will be carried out on the right side of the cylindrical member portion outer wall after cutting
External splines opens up processing；
S3：Two lines are drawn at the middle part of column right side wall, two lines are 45 °, and two with acute angle formed by horizontal plane
Bar line is mutually perpendicular to, and O points are mutually given at the midpoints of two lines, the length of two lines be reduce on the right side of column it is straight after diameter processing
The length of diameter, then O points are the center of circle of column right side wall, column are mounted on rig floor so that open up the end of external splines
Portion adjusts column towards drill bit so that the axis of column and the axis of drill bit are mutually parallel, and adjust column, drop-down
Drill bit so that the bottom end of drill bit and the contact point of column are O points, at this point, drill bit is coaxial with column, drill bit pushing is to cylinder
Part carries out opening up through-hole, and the radius of through-hole is R1 (as shown in Figure 2), when trepanning is to left end, the distance of 2mm is stayed to stop trepanning；
S4：Column is exchanged into one end, the spline that inner wall is carried out to the other end of column opens up, same with step S3
Mode is determined the center of circle of the larger end face of column diameter, and the end face larger to column diameter carries out out circular hole, this circle
Hole is coaxial with the through-hole in step S3 and diameter is identical (as shown in Figure 3)；
S5：After step S4 opens circular hole, carry out opening up internal spline, to the installation axle of the bite of internal spline shear action with
Circular hole coaxial is installed, and is carried out internal spline and is opened up, and the radius of circle where the tooth root of internal spline is R2, internal spline and external splines processing knot
After beam (as shown in Figure 4), end and step part to column carry out chamfered；
S6：Surface heat-treatent carries out finishing frosted processing, you can completion of processing according to accurate difference later.
Wherein, allowance is 1-1.2mm in the step S1, and the mode for reducing diameter cutting in the step S2 is divided into
Three steps, first two steps carry out the 80% of total cutting size, and final step is cut to 100%, when final step carries out slowly and at the uniform velocity
The step of mobile bite, face where the step S5 chamferings are 45 ° with acute angle formed by axis, the heat treatment of the step S6
For Carburization Treatment, quenching treatment and annealing, the Carburization Treatment is liquid Carburization Treatment.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of processing method for ensureing external splines concentricity in hollow shaft, it is characterised in that：External splines in the guarantee hollow shaft
The specific procedure of processing of the processing method of concentricity is as follows：
S1：The corrosion part vehicle of blank column outer wall to be processed is gone, and total length as needed carries out blank cylinder
Length cutting, there are allowance in diametric(al) and length, and the left end of the column after cutting is clamped in lathe
Rotation output terminal, test and adjust column cause column lathe rotation output terminal drive rotation in the case of circle jump
Moment value is less than or equal to 0.04mm；
S2：To being carried out at swedged cutting with spline sections on the right side of the outer wall of the column after axial adjustment in step S1
Reason, the length processed as needed is positioned cuts from right to left, will be carried out on the right side of the cylindrical member portion outer wall after cutting outer
Spline opens up processing；
S3：Two lines are drawn at the middle part of column right side wall, two lines are 45 °, and two lines with acute angle formed by horizontal plane
It is mutually perpendicular to, O points are mutually given at the midpoint of two lines, and the length of two lines is to reduce diameter after diameter processing on the right side of column
Length, then O points are the center of circle of column right side wall, column are mounted on rig floor so that open up the end court of external splines
To drill bit, column is adjusted so that the axis of column and the axis of drill bit are mutually parallel, and adjust column, drop-down drill bit,
So that the bottom end of drill bit and the contact point of column is O point, at this point, drill bit is coaxial with column, drill bit pushing to column into
Row opens up through-hole, and the radius of through-hole is R1, when trepanning is to left end, the distance of 2mm is stayed to stop trepanning；
S4：Column is exchanged into one end, the spline that inner wall is carried out to the other end of column opens up, with the same modes of step S3
Be determined the center of circle of the larger end face of column diameter, the end face larger to column diameter carries out out circular hole, this circular hole with
Through-hole in step S3 is coaxial and diameter is identical；
S5：It after step S4 opens circular hole, carries out opening up internal spline, to the installation axle and circular hole of the bite of internal spline shear action
It is co-axially mounted, carries out internal spline and open up, the radius of circle where the tooth root of internal spline is R2, internal spline and external splines process finishing
Afterwards, chamfered is carried out to the end of column and step part；
S6：Surface heat-treatent carries out finishing frosted processing, you can completion of processing according to accurate difference later.
2. a kind of processing method for ensureing external splines concentricity in hollow shaft according to claim 1, it is characterised in that：Institute
It is 1-1.2mm to state allowance in step S1.
3. a kind of processing method for ensureing external splines concentricity in hollow shaft according to claim 1, it is characterised in that：Institute
The mode for stating reduction diameter cutting in step S2 is divided into three steps, and first two steps carry out the 80% of total cutting size, and final step is cut
Bite is moved slowly and at the uniform velocity to 100%, when final step carries out.
4. a kind of processing method for ensureing external splines concentricity in hollow shaft according to claim 1, it is characterised in that：Institute
Face where stating step S5 chamferings is 45 ° with acute angle formed by axis.
5. a kind of processing method for ensureing external splines concentricity in hollow shaft according to claim 1, it is characterised in that：Institute
The step of stating the heat treatment of step S6 is Carburization Treatment, quenching treatment and annealing, and the Carburization Treatment is at liquid carburizing
Reason.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711224314.XA CN108127339A (en) | 2017-11-29 | 2017-11-29 | The processing method of external splines concentricity in a kind of guarantee hollow shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711224314.XA CN108127339A (en) | 2017-11-29 | 2017-11-29 | The processing method of external splines concentricity in a kind of guarantee hollow shaft |
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| CN108127339A true CN108127339A (en) | 2018-06-08 |
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| CN201711224314.XA Pending CN108127339A (en) | 2017-11-29 | 2017-11-29 | The processing method of external splines concentricity in a kind of guarantee hollow shaft |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111069853A (en) * | 2019-12-19 | 2020-04-28 | 倪景宁 | Machining method of one-way belt pulley mandrel |
| WO2020253550A1 (en) * | 2019-06-18 | 2020-12-24 | 常熟希那基汽车零件有限公司 | Novel hollow shaft manufacturing method |
| CN115156862A (en) * | 2022-07-08 | 2022-10-11 | 宁夏西北骏马电机制造股份有限公司 | Process for improving coaxiality of hollow shaft of motor |
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| CN102059527A (en) * | 2010-12-15 | 2011-05-18 | 罗勇 | Method for manufacturing hollow shaft of vehicle rear axle reducer |
| CN102489976A (en) * | 2011-11-29 | 2012-06-13 | 山东日新复合材料有限公司 | Processing technology of conveying chain gear shaft and improved manufacturing process of duplex gear |
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| CN105171341A (en) * | 2015-07-28 | 2015-12-23 | 中煤张家口煤矿机械有限责任公司 | In-shaft spline and outer circle coaxiality machining and positioning device and process method |
| CN105855948A (en) * | 2016-06-06 | 2016-08-17 | 黄石市钜晟重型汽车配件有限公司 | Positioning and clamping device |
| CN106914734A (en) * | 2017-03-15 | 2017-07-04 | 湘潭大学 | A kind of processing technology of spline gear major axis |
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2017
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059527A (en) * | 2010-12-15 | 2011-05-18 | 罗勇 | Method for manufacturing hollow shaft of vehicle rear axle reducer |
| CN102489976A (en) * | 2011-11-29 | 2012-06-13 | 山东日新复合材料有限公司 | Processing technology of conveying chain gear shaft and improved manufacturing process of duplex gear |
| CN104002096A (en) * | 2014-05-21 | 2014-08-27 | 中煤张家口煤矿机械有限责任公司 | Machining method for guaranteeing coaxiality of internal and external splines of hollow shaft |
| CN105171341A (en) * | 2015-07-28 | 2015-12-23 | 中煤张家口煤矿机械有限责任公司 | In-shaft spline and outer circle coaxiality machining and positioning device and process method |
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| CN106914734A (en) * | 2017-03-15 | 2017-07-04 | 湘潭大学 | A kind of processing technology of spline gear major axis |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020253550A1 (en) * | 2019-06-18 | 2020-12-24 | 常熟希那基汽车零件有限公司 | Novel hollow shaft manufacturing method |
| CN111069853A (en) * | 2019-12-19 | 2020-04-28 | 倪景宁 | Machining method of one-way belt pulley mandrel |
| CN115156862A (en) * | 2022-07-08 | 2022-10-11 | 宁夏西北骏马电机制造股份有限公司 | Process for improving coaxiality of hollow shaft of motor |
| CN115156862B (en) * | 2022-07-08 | 2023-12-08 | 宁夏西北骏马电机制造股份有限公司 | Process for improving coaxiality of motor hollow shaft |
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Effective date of abandoning: 20200228 |