CN109048240A - A kind of automobile steering system high density tooth centre axis processing technique - Google Patents
A kind of automobile steering system high density tooth centre axis processing technique Download PDFInfo
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- CN109048240A CN109048240A CN201810909787.1A CN201810909787A CN109048240A CN 109048240 A CN109048240 A CN 109048240A CN 201810909787 A CN201810909787 A CN 201810909787A CN 109048240 A CN109048240 A CN 109048240A
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- axis
- jackshaft
- processing
- machining allowance
- steering system
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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
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
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Abstract
The invention discloses axis processing techniques among a kind of automobile steering system high density tooth, comprising the following steps: S1: base, S2: roughing, S3: normalizing, forging and quenched, S4: semifinishing, S5: heat treatment, S6: finishing, S7: grinding processing, S8: finished product detection.The simple process of the intermediate axis processing technique, base quickly is carried out to blank, roughing, normalizing, quenched, semifinishing, finishing processing, grinding and chamfer machining are carried out to jackshaft after molding, the time and temperature of control heat treatment, possess certain machining allowance, guarantee that precision of the jackshaft in subsequent finishing is high, the product quality for promoting jackshaft passes through the jackshaft long service life after heat treatment, it is ensured that jackshaft can reach the requirement in automobile rotation system.
Description
Technical field
The present invention relates among auto parts and components processing technique field more particularly to a kind of automobile steering system high density tooth
Axis processing technique.
Background technique
Jackshaft is an axis in automobile gearbox, and axis itself is integrated with gear, and effect is to connect an axis and two axis
It connects, selects to engage from different gears by the transformation of gear lever, two axis is enable to export different rotating speeds, steering and torque.
The processing technology of jackshaft determines the quality of automobile steering system, and traditional intermediate axis processing technique is will be intermediate
Axis carries out blanking, forging, normalizing, the techniques such as smart car, carries out smart car to end face again later, finally cleaned, product inspection and
It is packed and stored.When carrying out heat treatment and coarse-fine processing to intermediate axis blank, between heat treatment and finishing, it is difficult to hold centre
The quality of axis, the deformation of jackshaft is difficult to estimate, jackshaft needs to cause by multiple smart car the processing consumption time of jackshaft
Greatly, and cost input is added, therefore it is proposed that a kind of automobile steering system high density tooth centre axis processing technique.
Summary of the invention
The invention proposes axis processing techniques among a kind of automobile steering system high density tooth, to solve above-mentioned background technique
The problem of middle proposition.
The invention proposes axis processing techniques among a kind of automobile steering system high density tooth, comprising the following steps:
S1: base selects the steel blank of phosphorus content 0.45% to carry out blanking, carries out conducting forging processing, forging temperature to blank
Degree is 800-1050 DEG C；
S2: roughing, turning axial end, axis outer circle, axis platform terrace, outside circle and increment, and retain surplus, axial end is pre-
8-12mm machining allowance is stayed, rest part reserves 3-5mm machining allowance, and axis both ends pass through centre drill centering；
S3: carrying out normalized treatment to the blank after forging, and normalizing temperature is 900-1000 DEG C, and the normalizing time is 2-3 hours,
Modifier treatment is carried out to the axis after normalizing, the hardness of axis is made to meet 25-35HRC；
S4: semifinishing positions axis, respectively the centre bore of fixed both ends of the shaft, and turning removes each step surface of axis
And the machining allowance of end face, smart car axial end, axis outer circle, axis platform terrace, axial end reserve 5-7mm machining allowance, axis outer circle is pre-
0.5-0.7mm machining allowance is stayed, axis platform terrace reserves 0.3-0.6mm machining allowance；
S5: heat treatment is quenched axis surface, the hardness of axis is made to reach 45-50HRC；
S6: finishing removes the reserved processing of axial end, axis outer circle and axis platform terrace again by centre bore locating shaft
Surplus；
S7: grinding processing, axis both ends outer rim do chamfered, remove the burr on axis surface, and clean to axis, remove
Adhesion；
S8: finished product detection, reference standard detect jackshaft every size index, it is up to standard after jackshaft storage.
Preferably, the modifier treatment in S3 includes quenching processing and high tempering, quenches the operating temperature of processing
It is 800-900 DEG C, working time 20-30min once cools down axis, then carries out high tempering after quenching processing,
Tempering temperature is 600-650 DEG C, tempering time 2-3h, after tempering, carries out secondary cooling to axis.
Preferably, the type of cooling is using the cold cooling down of oil.
Preferably, the positioning device in S4 is scroll chuck, and scroll chuck is inserted into the centre bore at axis both ends and completes admittedly
It is fixed.
Preferably, the detection device in S8 is metal detector, passes through metal detector detection axis crack and scar, inspection
Survey the suitable rate of jackshaft.
Axis processing technique among a kind of automobile steering system high density tooth proposed by the present invention, beneficial effect are: in this
Between axis processing technique simple process, quickly to blank carry out base, roughing, normalizing, quenched, semifinishing, at finishing
Reason carries out grinding and chamfer machining to jackshaft after molding, and the time and temperature of control heat treatment is possessed more than certain processing
Amount guarantees that precision of the jackshaft in subsequent finishing is high, promotes the product quality of jackshaft, pass through the centre after heat treatment
Axis long service life, it is ensured that jackshaft can reach the requirement in automobile rotation system.
Specific embodiment
It is next combined with specific embodiments below that the present invention will be further described.
Embodiment 1
The invention proposes axis processing techniques among a kind of automobile steering system high density tooth, comprising the following steps:
S1: base selects the steel blank of phosphorus content 0.45% to carry out blanking, carries out conducting forging processing, forging temperature to blank
Degree is 800 DEG C；
S2: roughing, turning axial end, axis outer circle, axis platform terrace, outside circle and increment, and retain surplus, axial end is pre-
12mm machining allowance is stayed, rest part reserves 5mm machining allowance, and axis both ends pass through centre drill centering；
S3: normalized treatment is carried out to the blank after forging, normalizing temperature is 900 DEG C, and the normalizing time is 3 hours, to normalizing
Axis progress modifier treatment afterwards, makes the hardness of axis meet 35HRC, and modifier treatment includes quenching processing and high tempering, and quenching adds
The operating temperature of work is 800 DEG C, working time 2min, after quenching processing, is once cooled down to axis, then carries out high temperature and returns
Fire, tempering temperature are 600 DEG C, tempering time 2h, after tempering, carry out secondary cooling to axis, the type of cooling uses
The cold cooling down of oil；
S4: semifinishing positions axis, and the centre bore of fixed both ends of the shaft, positioning device are scroll chuck respectively, and three
Dog chuck, which is inserted into, to be completed to fix in the centre bore at axis both ends, and turning removes the machining allowance of each step surface of axis and end face, smart car
Axial end, axis outer circle, axis platform terrace, axial end reserve 5mm machining allowance, and axis outer circle reserves 0.5mm machining allowance, axis platform terrace
Reserved 0.3mm machining allowance；
S5: heat treatment is quenched axis surface, the hardness of axis is made to reach 40HRC；
S6: finishing removes the reserved processing of axial end, axis outer circle and axis platform terrace again by centre bore locating shaft
Surplus；
S7: grinding processing, axis both ends outer rim do chamfered, remove the burr on axis surface, and clean to axis, remove
Adhesion；
S8: finished product detection, reference standard detect every size index of jackshaft, and detection device is metal detector, lead to
Cross metal detector detection axis crack and scar, detect the suitable rate of jackshaft, it is up to standard after jackshaft storage.
Embodiment 2
The invention proposes axis processing techniques among a kind of automobile steering system high density tooth, comprising the following steps:
S1: base selects the steel blank of phosphorus content 0.45% to carry out blanking, carries out conducting forging processing, forging temperature to blank
Degree is 900 DEG C；
S2: roughing, turning axial end, axis outer circle, axis platform terrace, outside circle and increment, and retain surplus, axial end is pre-
10mm machining allowance is stayed, rest part reserves 5mm machining allowance, and axis both ends pass through centre drill centering；
S3: normalized treatment is carried out to the blank after forging, normalizing temperature is 1000 DEG C, and the normalizing time is 2 hours, to normalizing
Axis progress modifier treatment afterwards, makes the hardness of axis meet 25HRC, and modifier treatment includes quenching processing and high tempering, and quenching adds
The operating temperature of work is 850 DEG C, working time 25min, after quenching processing, is once cooled down to axis, then carries out high temperature
Tempering, tempering temperature are 600 DEG C, tempering time 2.5h, after tempering, carry out secondary cooling, the type of cooling to axis
Using the cold cooling down of oil；
S4: semifinishing positions axis, and the centre bore of fixed both ends of the shaft, positioning device are scroll chuck respectively, and three
Dog chuck, which is inserted into, to be completed to fix in the centre bore at axis both ends, and turning removes the machining allowance of each step surface of axis and end face, smart car
Axial end, axis outer circle, axis platform terrace, axial end reserve 6mm machining allowance, and axis outer circle reserves 0.7mm machining allowance, axis platform terrace
Reserved 0.6mm machining allowance；
S5: heat treatment is quenched axis surface, the hardness of axis is made to reach 48HRC；
S6: finishing removes the reserved processing of axial end, axis outer circle and axis platform terrace again by centre bore locating shaft
Surplus；
S7: grinding processing, axis both ends outer rim do chamfered, remove the burr on axis surface, and clean to axis, remove
Adhesion；
S8: finished product detection, reference standard detect every size index of jackshaft, and detection device is metal detector, lead to
Cross metal detector detection axis crack and scar, detect the suitable rate of jackshaft, it is up to standard after jackshaft storage.
Embodiment 3
The invention proposes axis processing techniques among a kind of automobile steering system high density tooth, comprising the following steps:
S1: base selects the steel blank of phosphorus content 0.45% to carry out blanking, carries out conducting forging processing, forging temperature to blank
Degree is 900 DEG C；
S2: roughing, turning axial end, axis outer circle, axis platform terrace, outside circle and increment, and retain surplus, axial end is pre-
10mm machining allowance is stayed, rest part reserves 4mm machining allowance, and axis both ends pass through centre drill centering；
S3: normalized treatment is carried out to the blank after forging, normalizing temperature is 980 DEG C, and the normalizing time is 2.5 hours, to just
Axis after fire carries out modifier treatment, and the hardness of axis is made to meet 30HRC, and modifier treatment includes quenching processing and high tempering, quenching
The operating temperature of processing is 830 DEG C, working time 25min, after quenching processing, is once cooled down to axis, is then carried out high
Temperature tempering, tempering temperature are 620 DEG C, tempering time 2h, after tempering, carry out secondary cooling, the type of cooling to axis
Using the cold cooling down of oil；
S4: semifinishing positions axis, and the centre bore of fixed both ends of the shaft, positioning device are scroll chuck respectively, and three
Dog chuck, which is inserted into, to be completed to fix in the centre bore at axis both ends, and turning removes the machining allowance of each step surface of axis and end face, smart car
Axial end, axis outer circle, axis platform terrace, axial end reserve 5.5mm machining allowance, and axis outer circle reserves 0.6mm machining allowance, axis platform rank
Reserve 0.4mm machining allowance in face；
S5: heat treatment is quenched axis surface, the hardness of axis is made to reach 47HRC；
S6: finishing removes the reserved processing of axial end, axis outer circle and axis platform terrace again by centre bore locating shaft
Surplus；
S7: grinding processing, axis both ends outer rim do chamfered, remove the burr on axis surface, and clean to axis, remove
Adhesion；
S8: finished product detection, reference standard detect every size index of jackshaft, and detection device is metal detector, lead to
Cross metal detector detection axis crack and scar, detect the suitable rate of jackshaft, it is up to standard after jackshaft storage.
Embodiment 4
The invention proposes axis processing techniques among a kind of automobile steering system high density tooth, comprising the following steps:
S1: base selects the steel blank of phosphorus content 0.45% to carry out blanking, carries out conducting forging processing, forging temperature to blank
Degree is 1000 DEG C；
S2: roughing, turning axial end, axis outer circle, axis platform terrace, outside circle and increment, and retain surplus, axial end is pre-
9mm machining allowance is stayed, rest part reserves 4mm machining allowance, and axis both ends pass through centre drill centering；
S3: normalized treatment is carried out to the blank after forging, normalizing temperature is 980 DEG C, and the normalizing time is 3 hours, to normalizing
Axis progress modifier treatment afterwards, makes the hardness of axis meet 35HRC, and modifier treatment includes quenching processing and high tempering, and quenching adds
The operating temperature of work is 900 DEG C, working time 20min, after quenching processing, is once cooled down to axis, then carries out high temperature
Tempering, tempering temperature are 620 DEG C, tempering time 2.3h, after tempering, carry out secondary cooling, the type of cooling to axis
Using the cold cooling down of oil；
S4: semifinishing positions axis, and the centre bore of fixed both ends of the shaft, positioning device are scroll chuck respectively, and three
Dog chuck, which is inserted into, to be completed to fix in the centre bore at axis both ends, and turning removes the machining allowance of each step surface of axis and end face, smart car
Axial end, axis outer circle, axis platform terrace, axial end reserve 6mm machining allowance, and axis outer circle reserves 0.7mm machining allowance, axis platform terrace
Reserved 0.4mm machining allowance；
S5: heat treatment is quenched axis surface, the hardness of axis is made to reach 50HRC；
S6: finishing removes the reserved processing of axial end, axis outer circle and axis platform terrace again by centre bore locating shaft
Surplus；
S7: grinding processing, axis both ends outer rim do chamfered, remove the burr on axis surface, and clean to axis, remove
Adhesion；
S8: finished product detection, reference standard detect every size index of jackshaft, and detection device is metal detector, lead to
Cross metal detector detection axis crack and scar, detect the suitable rate of jackshaft, it is up to standard after jackshaft storage.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. axis processing technique among a kind of automobile steering system high density tooth, which comprises the following steps:
S1: base selects the steel blank of phosphorus content 0.45% to carry out blanking, carries out conducting forging processing to blank, forging temperature is
800-1050℃；
S2: roughing, turning axial end, axis outer circle, axis platform terrace, outside circle and increment, and retain surplus, axial end reserves 8-
12mm machining allowance, rest part reserve 3-5mm machining allowance, and axis both ends pass through centre drill centering；
S3: normalized treatment is carried out to the blank after forging, normalizing temperature is 900-1000 DEG C, and the normalizing time is 2-3 hours, to just
Axis after fire carries out modifier treatment, and the hardness of axis is made to meet 25-35HRC；
S4: semifinishing positions axis, respectively the centre bore of fixed both ends of the shaft, and turning removes each step surface of axis and end
The machining allowance in face, smart car axial end, axis outer circle, axis platform terrace, axial end reserve 5-7mm machining allowance, and axis outer circle is reserved
0.5-0.7mm machining allowance, axis platform terrace reserve 0.3-0.6mm machining allowance；
S5: heat treatment is quenched axis surface, the hardness of axis is made to reach 45-50HRC；
S6: finishing removes the reserved machining allowance of axial end, axis outer circle and axis platform terrace again by centre bore locating shaft；
S7: grinding processing, axis both ends outer rim do chamfered, remove the burr on axis surface, and clean to axis, and removal is sticked together
Object；
S8: finished product detection, reference standard detect jackshaft every size index, it is up to standard after jackshaft storage.
2. axis processing technique among a kind of automobile steering system high density tooth according to claim 1, it is characterised in that:
The modifier treatment in S3 includes quenching processing and high tempering, and the operating temperature for quenching processing is 800-900 DEG C, when work
Between be 20-30min, quenching processing after, axis is once cooled down, high tempering, tempering temperature 600-650 are then carried out
DEG C, tempering time 2-3h after tempering, carries out secondary cooling to axis.
3. axis processing technique among a kind of automobile steering system high density tooth according to claim 2, it is characterised in that: institute
The type of cooling is stated using the cold cooling down of oil.
4. a kind of a kind of automobile steering system high density tooth centre axis processing technique according to claim 1, feature exist
In: the positioning device in S4 is scroll chuck, and scroll chuck, which is inserted into, to be completed to fix in the centre bore at axis both ends.
5. a kind of a kind of automobile steering system high density tooth centre axis processing technique according to claim 1, feature exist
In the detection device in S8 detects the conjunction of jackshaft by metal detector detection axis crack and scar for metal detector
Suitable rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810909787.1A CN109048240A (en) | 2018-08-10 | 2018-08-10 | A kind of automobile steering system high density tooth centre axis processing technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810909787.1A CN109048240A (en) | 2018-08-10 | 2018-08-10 | A kind of automobile steering system high density tooth centre axis processing technique |
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| CN109048240A true CN109048240A (en) | 2018-12-21 |
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| CN201810909787.1A Pending CN109048240A (en) | 2018-08-10 | 2018-08-10 | A kind of automobile steering system high density tooth centre axis processing technique |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842493A (en) * | 2019-11-12 | 2020-02-28 | 中国船舶重工集团公司第七0七研究所 | Machining method for prolonging service life and improving precision of crankshaft of planetary cycloidal pin gear speed reducer |
| CN111546000A (en) * | 2020-05-03 | 2020-08-18 | 南通捷越机电有限公司 | Production and processing technology of high-speed rotor shaft |
| CN112276497A (en) * | 2020-09-07 | 2021-01-29 | 湖北隐冠轴业有限公司 | Processing technology of high-density tooth intermediate shaft of new energy automobile steering system |
| CN115431008A (en) * | 2021-06-01 | 2022-12-06 | 常熟市金华机械股份有限公司 | High-precision output shaft machining process for automobile steering system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672441A (en) * | 2012-04-28 | 2012-09-19 | 重庆市江津区宏盛机械制造有限公司 | Light rail intermediate shaft machining process |
| CN103894789A (en) * | 2012-12-28 | 2014-07-02 | 大连瓦特重机床有限公司 | Machine tool spindle machining method |
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2018
- 2018-08-10 CN CN201810909787.1A patent/CN109048240A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672441A (en) * | 2012-04-28 | 2012-09-19 | 重庆市江津区宏盛机械制造有限公司 | Light rail intermediate shaft machining process |
| CN103894789A (en) * | 2012-12-28 | 2014-07-02 | 大连瓦特重机床有限公司 | Machine tool spindle machining method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842493A (en) * | 2019-11-12 | 2020-02-28 | 中国船舶重工集团公司第七0七研究所 | Machining method for prolonging service life and improving precision of crankshaft of planetary cycloidal pin gear speed reducer |
| CN111546000A (en) * | 2020-05-03 | 2020-08-18 | 南通捷越机电有限公司 | Production and processing technology of high-speed rotor shaft |
| CN112276497A (en) * | 2020-09-07 | 2021-01-29 | 湖北隐冠轴业有限公司 | Processing technology of high-density tooth intermediate shaft of new energy automobile steering system |
| CN115431008A (en) * | 2021-06-01 | 2022-12-06 | 常熟市金华机械股份有限公司 | High-precision output shaft machining process for automobile steering system |
| CN115431008B (en) * | 2021-06-01 | 2023-12-26 | 常熟市金华机械股份有限公司 | High-precision output shaft machining process for automobile steering system |
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Application publication date: 20181221 |
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