CN116275927A - Processing method of high-precision spline slender shaft - Google Patents
Processing method of high-precision spline slender shaft Download PDFInfo
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- CN116275927A CN116275927A CN202310064021.9A CN202310064021A CN116275927A CN 116275927 A CN116275927 A CN 116275927A CN 202310064021 A CN202310064021 A CN 202310064021A CN 116275927 A CN116275927 A CN 116275927A
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- spline
- grinding
- slender shaft
- precision
- shaft
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- 238000003672 processing method Methods 0.000 title claims abstract description 13
- 238000000227 grinding Methods 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000003754 machining Methods 0.000 claims abstract description 12
- 238000003801 milling Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000005255 carburizing Methods 0.000 claims abstract description 7
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract description 9
- 206010006514 bruxism Diseases 0.000 abstract description 4
- 238000010606 normalization Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000005496 tempering Methods 0.000 description 2
- 241000287828 Gallus gallus Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Processing (AREA)
Abstract
The invention discloses a processing method of a high-precision spline slender shaft, which comprises the following steps: A. normalizing the material; B. and (3) setting the total length: cutting out a woolen material with the same length of the spline slender shaft; C. setting a central hole of the end face of the spline slender shaft and processing a driving hole with a grinding shape; D. the shape of the vehicle; E. carrying out rough grinding; F. hobbing; G. carburizing heat treatment; H. straightening: straightening the part finished in the step G; I. finish milling key groove: finish milling a key slot at a set position on the part finished in the step H; J. grinding: grinding the appearance of the part finished in the step I by a grinder; K. checking: checking whether the set spline slender shaft is qualified or not, and leaving a factory for qualified products; according to the invention, through pretreatment of normalizing the material, the precision of rough machining and a positioning surface is improved, so that the precision of the gear is ensured to be at a high level after being heated, and the product can meet the high precision requirement of a customer without grinding teeth or finish rolling, thereby increasing the surface hardness of the product and prolonging the service life of the product.
Description
Technical Field
The invention relates to an improvement of a production process of a set spline slender shaft, in particular to a processing method of a high-precision spline slender shaft, which ensures that the precision of a gear is at a high level after heating through pretreatment of material normalization, rough machining and precision improvement of a positioning surface, ensures that a product does not need tooth grinding or finish rolling, can meet the high-precision requirement of a customer, increases the surface hardness of the product and prolongs the service life of the product.
Background
In the prior art, the processing method of the high-precision spline slender shaft comprises the following steps:
A. and (3) setting the total length: cutting out a woolen material with the same length of the spline slender shaft;
B. and (3) appearance processing: firstly clamping one end of a shaft to be processed, and processing the other end of the shaft to be processed into a required stepped shaft; clamping the machined end of the shaft to be machined, and machining the machined end of the shaft to be machined with the required stepped shaft again; the stepped shaft of the shaft to be processed can be processed by repeating the steps;
C. hobbing: hobbing the set position of the part finished in the step B;
D. and (3) heat treatment tempering: quenching the set spline slender shaft after the step shaft is processed, improving the hardness and strength of the set spline slender shaft, tempering, reducing the hardness and strength, improving the plasticity and toughness of the set spline slender shaft, and finding a balance point so that the comprehensive mechanical property of the set spline slender shaft is best;
E. grinding teeth or finish rolling: grinding or finish rolling the gear obtained in the step D;
F. key groove processing: fixing the set spline slender shaft after heat treatment in a mode of combining a three-jaw chuck and a center, and milling a required key slot by using a milling cutter;
G. grinding by a grinding machine: the center is propped against two ends of a workpiece, a chicken heart clamp is used for driving the setting spline slender shaft to rotate or a three-jaw chuck is used for clamping the setting spline slender shaft and driving the setting spline slender shaft to rotate, and meanwhile, the grinding wheel grinds the outer circular surface of the setting spline slender shaft;
H. checking shipment: checking and setting whether the spline slender shaft is qualified or not, leaving the qualified product from the factory, and scrapping the unqualified product.
In the profile machining of the set spline slender shaft, machining errors are amplified by carrying out multiple clamping, the reference is the axis of the three-jaw chuck, once the surface of the set spline slender shaft is rough, the axis of the three-jaw chuck cannot coincide with the central axis of the set spline slender shaft, and the cylindricity of the machined stepped shaft cannot meet the standard; in the processing of a key groove of a set spline slender shaft, when the three-jaw chuck is used for fixedly setting the spline slender shaft, once the surface of the set spline slender shaft is rough, the axis of the three-jaw chuck cannot coincide with the central axis of the set spline slender shaft, so that the milled axis of the key groove is not in a vertical plane passing through the central axis of the set spline slender shaft, and the position accuracy of the key groove cannot be ensured; in the grinding of the set spline slender shaft, the grinding effect is poor because the cylindricity of the stepped shaft processed in the shape processing does not accord with the standard; meanwhile, gear grinding or finish rolling operation is required to be carried out on the gears, and the processing method is complex.
Therefore, the processing method of the high-precision spline slender shaft, which ensures that the precision of the gear is at a high level after heating through pretreatment of material normalization, rough machining and precision improvement of a positioning surface, ensures that the product can meet the high-precision requirement of a customer without grinding teeth or finish rolling, increases the surface hardness of the product and prolongs the service life of the product, is developed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a processing method of a high-precision spline slender shaft, which ensures that the precision of a gear is at a high level after heating by pre-processing the normalizing of materials, rough machining and precision improvement of a positioning surface, so that a product can meet the high-precision requirement of a customer without grinding teeth or finish rolling, the surface hardness of the product is increased, and the service life of the product is prolonged.
In order to achieve the above purpose, the invention adopts the following technical scheme: a processing method of a high-precision spline slender shaft comprises the following steps:
A. normalizing the material: normalizing the raw materials;
B. and (3) setting the total length: cutting out a woolen material with the same length of the spline slender shaft;
C. setting a central hole of an end face of the spline slender shaft and processing a driving hole with a grinding shape: respectively processing central holes of the end faces of the slender shaft of the set spline at the two end faces of the woolen; simultaneously, symmetrically machining grinding shape driving holes along a central hole of the end face of the set spline slender shaft at one end of the blank;
D. vehicle appearance: placing the woolen on a lathe to process the shape;
E. and (5) carrying out rough grinding: coarsely grinding the appearance of the appearance turning part finished in the step D by using a grinder;
F. hobbing: hobbing at the set position on the part finished in the step E;
G. carburizing heat treatment: firstly, carburizing the part obtained in the step F, and improving the hardness and strength of the part to optimize the comprehensive mechanical properties of the part;
H. straightening: straightening the part finished in the step G;
I. finish milling key groove: finish milling a key slot at a set position on the part finished in the step H;
J. grinding: grinding the appearance of the part finished in the step I by a grinder;
K. checking: checking and setting whether the spline slender shaft is qualified or not, leaving the qualified product from the factory, and scrapping the unqualified product.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the processing method of the high-precision spline slender shaft, through pretreatment of material normalization, the precision of rough machining and positioning surfaces is improved, the precision of gears is ensured to be at a high level after the gears are heated, so that the products do not need tooth grinding or finish rolling, the high-precision requirements of customers can be met, the surface hardness of the products is increased, and the service life of the products is prolonged.
Drawings
The technical scheme of the invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of a method of processing a high precision spline elongate shaft according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the processing method of the high-precision spline slender shaft provided by the invention comprises the following steps:
A. normalizing the material: normalizing the raw materials;
B. and (3) setting the total length: cutting out a woolen material with the same length of the spline slender shaft;
C. setting a central hole of an end face of the spline slender shaft and processing a driving hole with a grinding shape: respectively processing central holes of the end faces of the slender shaft of the set spline at the two end faces of the woolen; simultaneously, symmetrically machining grinding shape driving holes along a central hole of the end face of the set spline slender shaft at one end of the blank;
D. vehicle appearance: placing the woolen on a lathe to process the shape;
E. and (5) carrying out rough grinding: coarsely grinding the appearance of the appearance turning part finished in the step D by using a grinder;
F. hobbing: hobbing at the set position on the part finished in the step E;
G. carburizing heat treatment: firstly, carburizing the part obtained in the step F, and improving the hardness and strength of the part to optimize the comprehensive mechanical properties of the part;
H. straightening: straightening the part finished in the step G;
I. finish milling key groove: finish milling a key slot at a set position on the part finished in the step H;
J. grinding: grinding the appearance of the part finished in the step I by a grinder;
K. checking: checking and setting whether the spline slender shaft is qualified or not, leaving the qualified product from the factory, and scrapping the unqualified product.
Description: the center hole of the end face of the set spline slender shaft and the driving hole with the grinding shape are all process holes which are processed on the premise of not affecting the actual function and the precision requirement of the set spline slender shaft and are convenient for subsequent processing.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the processing method of the high-precision spline slender shaft, through pretreatment of material normalization, the precision of rough machining and positioning surfaces is improved, the precision of gears is ensured to be at a high level after the gears are heated, so that the products do not need tooth grinding or finish rolling, the high-precision requirements of customers can be met, the surface hardness of the products is increased, and the service life of the products is prolonged.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (1)
1. The processing method of the high-precision spline slender shaft is characterized by comprising the following steps of:
A. normalizing the material: normalizing the raw materials;
B. and (3) setting the total length: cutting out a woolen material with the same length of the spline slender shaft;
C. setting a central hole of an end face of the spline slender shaft and processing a driving hole with a grinding shape: respectively processing central holes of the end faces of the slender shaft of the set spline at the two end faces of the woolen; simultaneously, symmetrically machining grinding shape driving holes along a central hole of the end face of the set spline slender shaft at one end of the blank;
D. vehicle appearance: placing the woolen on a lathe to process the shape;
E. and (5) carrying out rough grinding: coarsely grinding the appearance of the appearance turning part finished in the step D by using a grinder;
F. hobbing: hobbing at the set position on the part finished in the step E;
G. carburizing heat treatment: firstly, carburizing the part obtained in the step F, and improving the hardness and strength of the part to optimize the comprehensive mechanical properties of the part;
H. straightening: straightening the part finished in the step G;
I. finish milling key groove: finish milling a key slot at a set position on the part finished in the step H;
J. grinding: grinding the appearance of the part finished in the step I by a grinder;
K. checking: checking and setting whether the spline slender shaft is qualified or not, leaving the qualified product from the factory, and scrapping the unqualified product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310064021.9A CN116275927A (en) | 2023-01-13 | 2023-01-13 | Processing method of high-precision spline slender shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310064021.9A CN116275927A (en) | 2023-01-13 | 2023-01-13 | Processing method of high-precision spline slender shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116275927A true CN116275927A (en) | 2023-06-23 |
Family
ID=86815837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310064021.9A Pending CN116275927A (en) | 2023-01-13 | 2023-01-13 | Processing method of high-precision spline slender shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116275927A (en) |
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2023
- 2023-01-13 CN CN202310064021.9A patent/CN116275927A/en active Pending
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