CN113904491A - New energy blind hole hollow motor shaft and processing method thereof - Google Patents
New energy blind hole hollow motor shaft and processing method thereof Download PDFInfo
- Publication number
- CN113904491A CN113904491A CN202111127545.5A CN202111127545A CN113904491A CN 113904491 A CN113904491 A CN 113904491A CN 202111127545 A CN202111127545 A CN 202111127545A CN 113904491 A CN113904491 A CN 113904491A
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- China
- Prior art keywords
- hole
- shaft
- hollow motor
- motor shaft
- isolation cover
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- 238000003672 processing method Methods 0.000 title claims abstract description 15
- 238000002955 isolation Methods 0.000 claims abstract description 32
- 238000005520 cutting process Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 9
- 238000005242 forging Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
Abstract
The invention discloses a new energy blind hole hollow motor shaft and a processing method thereof. Blind hole hollow motor shaft includes: a through-hole shaft and an isolation cover; an inner hole groove is formed in the through hole shaft, and the isolation cover is pressed into the through hole shaft and filled in the inner hole groove. By adopting the new-energy blind hole hollow motor shaft and the processing method thereof, the motor shaft is made into the through hole firstly, and then the processing, the arrangement, the cutting and the cleaning are convenient.
Description
Technical Field
The invention belongs to the field of new energy automobile motors, and particularly relates to a new energy blind hole hollow motor shaft and a processing method thereof.
Background
The new energy electric vehicle is the development direction of the automobile industry at present and in the future, and a hollow motor shaft is designed for reducing the weight of the whole vehicle. The material of the hollow shaft is carburized steel or medium carbon steel, such as 20MnCr5, 42CrMo4 and 45 steel. The hollow motor shaft structure is typically characterized in that the middle is thick, the two ends are small, and the wall thickness of the middle part is 4-8 mm.
In the prior art, when a blind hole hollow motor shaft is processed, a conventional processing method is adopted: the following problems can occur when the inner holes are drilled and turned at two ends: the iron removing and cutting are difficult, the boring iron cutting at two ends can not be removed, the cutter is easy to wind, and dirt is not easy to discharge when the blind hole shaft is cleaned, so that the requirement of cleanliness can not be met.
Object of the Invention
The invention aims to provide a new energy blind hole hollow motor shaft and a processing method thereof aiming at the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a new forms of energy blind hole hollow motor shaft includes: a through-hole shaft and an isolation cover; an inner hole groove is formed in the through hole shaft, and the isolation cover is pressed into the through hole shaft and filled in the inner hole groove.
Furthermore, the isolation cover is a cylinder, and the diameter of the end face of the cylinder is 0.1mm smaller than that of the inner hole of the through hole shaft.
Furthermore, the hardness of the through hole shaft material is HRB75-110, and the hardness of the isolation cover material is HRB 70-90.
A processing method of a new energy blind hole hollow motor shaft comprises the following steps:
cutting off the long material circular sawing machine, drilling a through hole on the shaft by using a deep hole drill, forging the two ends of the shaft to be thin by rotary forging, turning an inner hole and an outer diameter, turning an inner hole groove at the position of the pressure isolation cover on the inner hole, and processing the through hole shaft;
cutting off and turning the bar to process an isolation cover;
and fixing the through hole shaft on the jig through the outer sleeve and the lower punch, pressing the isolation cover into the through hole shaft through the upper punch and filling the inner hole groove to obtain the blind hole hollow motor shaft.
Further, the through hole shaft is cleaned before being pressed into the isolation cover.
Further, the outer sleeve and the lower punching rod are fixed on the jig fixing plate through screws, the through hole shaft is placed into the lower punching rod, the outer sleeve is used for assisting in positioning, the single-side gap between the lower punching rod and the inner hole of the through hole shaft is 0.025mm, and the end face of the lower punching rod is 0.3-0.5 mm higher than the lower edge of the groove of the inner hole of the shaft.
Furthermore, the unilateral clearance between the upper punch rod and the inner hole of the through hole shaft is 0.025mm, and the groove of the inner hole of the shaft is fully filled with the isolation cover by applying pressure to the axial direction of the upper punch rod.
Further, the punch end faces of the upper punch and the lower punch have the same structure as follows: the end face is centrally provided with a groove with the depth of 0.8-0.9 mm, and the diameter of the groove is 0.7-0.88 times of the diameter of the upper and lower punching rods.
Furthermore, the hardness of the upper and lower punch rod materials is HRC 61-63.
By adopting the new-energy blind hole hollow motor shaft and the processing method thereof, the motor shaft is made into the through hole firstly, and then the processing, the arrangement, the cutting and the cleaning are convenient.
Drawings
FIG. 1 is a schematic view of the processing procedure of a blind hole hollow motor shaft according to the embodiment.
FIG. 2 is a side view of an embodiment of the isolation cover (a is the isolation cover after machining and b is the isolation cover after being pressed into the through-hole shaft and filling the inner-hole groove).
FIG. 3 is a schematic view of the processing of the blind hole hollow motor shaft in the embodiment.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but 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 application.
It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of this application and the above-described drawings, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The utility model provides a new forms of energy blind hole hollow motor shaft, adopts the mode processing of two part combinations to obtain, includes: a through-hole shaft 1 and an isolation cover 2. An inner hole groove is arranged in the through hole shaft, and the isolation cover is pressed into the through hole shaft and filled in the inner hole groove.
The isolation cover is a cylinder as shown in figure 2, the diameter of the end face of the cylinder is 0.1mm smaller than the inner hole of the through hole shaft, and the thickness of the isolation cover is 5mm +/-0.3 mm.
The hardness of the through hole shaft material is HRB75-110, and the hardness of the isolation cover material is HRB 70-90.
The processing process of the blind hole hollow motor shaft is shown in figure 1, and specifically comprises the following steps:
(1) cutting off the long material circular sawing machine, drilling the shaft into a through hole by using a deep hole drill, forging the two ends of the shaft into thin parts by rotary forging, turning an inner hole and an outer diameter, turning an inner hole groove at the position of the isolating cover out of the inner hole, and processing the through hole shaft.
The width of the inner hole groove (up and down) is 5.5mm, the depth of the shaft wall is 0.5mm on one side (turning a circle, the depth is 0.5mm, and the width is 5.5 mm).
(2) And (4) cutting and turning the bar to obtain the isolating cover.
(3) And cleaning and processing the through hole shaft, fixing the through hole shaft on the jig through the outer sleeve and the lower punch, pressing the isolation cover into the through hole shaft through the upper punch and filling the inner hole groove to obtain the blind hole hollow motor shaft.
The process of fixing and pressing the through hole shaft into the isolation cover is shown in figure 3, the outer sleeve 3 and the lower punch rod 4 are fixed on the jig fixing plate 5 through screws, the through hole shaft is placed into the lower punch rod, the outer sleeve assists in positioning, the single-side gap between the lower punch rod and the inner hole of the through hole shaft is 0.025mm, and the end face of the lower punch rod is 0.3-0.5 mm higher than the lower edge of the groove of the inner hole of the shaft. The unilateral clearance between the upper punch 6 and the inner hole of the through hole shaft is 0.025mm, and the groove of the inner hole of the shaft is fully filled with the isolation cover by applying pressure to the axial direction of the upper punch.
The punch end faces of the upper punch and the lower punch have the same structure as follows: the end face is provided with a 0.8-0.9 mm deep groove in the middle, so that when the isolation cover is pressed, the stress area is small, and materials are easily filled into the groove of the shaft. The diameter of the groove is 0.7-0.88 times of the diameter of the upper and lower punch rods.
The hardness of the upper and lower punch materials is HRC 61-63.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a new forms of energy blind hole hollow motor shaft which characterized in that includes: a through-hole shaft and an isolation cover; an inner hole groove is formed in the through hole shaft, and the isolation cover is pressed into the through hole shaft and filled in the inner hole groove.
2. The new forms of energy blind hole hollow motor shaft of claim 1, characterized in that: the isolation cover is a cylinder, and the diameter of the end face of the cylinder is 0.1mm smaller than that of the inner hole of the through hole shaft.
3. The new forms of energy blind hole hollow motor shaft of claim 1, characterized in that: the hardness of the through hole shaft material is HRB75-110, and the hardness of the isolation cover material is HRB 70-90.
4. A processing method of a new energy blind hole hollow motor shaft is characterized by comprising the following steps:
cutting off the long material circular sawing machine, drilling a through hole on the shaft by using a deep hole drill, forging the two ends of the shaft to be thin by rotary forging, turning an inner hole and an outer diameter, turning an inner hole groove at the position of the pressure isolation cover on the inner hole, and processing the through hole shaft;
cutting off and turning the bar to process an isolation cover;
and fixing the through hole shaft on the jig through the outer sleeve and the lower punch, pressing the isolation cover into the through hole shaft through the upper punch and filling the inner hole groove to obtain the blind hole hollow motor shaft.
5. The processing method of the new energy blind hole hollow motor shaft according to claim 4, characterized in that: the through hole shaft is cleaned before being pressed into the isolation cover.
6. The processing method of the new energy blind hole hollow motor shaft according to claim 4, characterized in that: the outer sleeve and the lower punch rod are fixed on the jig fixing plate through screws, the lower punch rod is placed in the through hole shaft, the outer sleeve is positioned in an auxiliary mode, the unilateral gap between the lower punch rod and the inner hole of the through hole shaft is 0.025mm, and the end face of the lower punch rod is higher than the lower edge of the inner hole groove of the shaft by 0.3-0.5 mm.
7. The processing method of the new energy blind hole hollow motor shaft according to claim 4, characterized in that: the unilateral clearance of upper punch and through-hole axle hole is 0.025mm, lets the isolation cover fully fill up axle hole recess through to upper punch axial application pressure.
8. The processing method of the new energy blind hole hollow motor shaft according to claim 4, characterized in that: the punch end faces of the upper punch and the lower punch have the same following structures: the end face is centrally provided with a groove with the depth of 0.8-0.9 mm, and the diameter of the groove is 0.7-0.88 times of the diameter of the upper and lower punching rods.
9. The processing method of the new energy blind hole hollow motor shaft according to claim 4, characterized in that: the hardness of the upper and lower punch rod materials is HRC 61-63.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111127545.5A CN113904491A (en) | 2021-09-26 | 2021-09-26 | New energy blind hole hollow motor shaft and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111127545.5A CN113904491A (en) | 2021-09-26 | 2021-09-26 | New energy blind hole hollow motor shaft and processing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113904491A true CN113904491A (en) | 2022-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111127545.5A Pending CN113904491A (en) | 2021-09-26 | 2021-09-26 | New energy blind hole hollow motor shaft and processing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN113904491A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104114299A (en) * | 2011-12-30 | 2014-10-22 | 巴巴萨海布·尼尔康德·卡利亚尼 | A method for manufacturing hollow shafts |
| CN105522357A (en) * | 2015-11-12 | 2016-04-27 | 陕西一品达石化有限公司 | Machining method for hollow transmission shafts |
| CN106862880A (en) * | 2017-03-06 | 2017-06-20 | 中航动力株洲航空零部件制造有限公司 | hollow shaft processing method |
| CN108131380A (en) * | 2017-11-29 | 2018-06-08 | 江阴市永兴机械制造有限公司 | A kind of motor shaft and its manufacturing method with internal spline |
| CN207664795U (en) * | 2017-12-10 | 2018-07-27 | 南京高传电机制造有限公司 | A kind of New energy automobile motor hollow rotating shaft |
| CN208353138U (en) * | 2018-07-24 | 2019-01-08 | 重庆长安汽车股份有限公司 | Driving motor and drive motor shaft |
| CN109532370A (en) * | 2018-12-31 | 2019-03-29 | 湖北汽车工业学院 | A kind of band lip block hollow sphere pin shaft and manufacturing method |
| CN109695623A (en) * | 2019-02-01 | 2019-04-30 | 河南科技大学 | A kind of integral light-weight quantization gear shaft and its manufacturing process |
| CN110091138A (en) * | 2019-06-18 | 2019-08-06 | 常熟希那基汽车零件有限公司 | A kind of novel hollow production method of shaft |
| CN110332214A (en) * | 2019-08-23 | 2019-10-15 | 宁波巨航冷挤科技有限公司 | A kind of motor shaft and its manufacturing process of the new-energy automobile high-speed driving based on light-weight design |
| CN112311139A (en) * | 2020-11-10 | 2021-02-02 | 精进电动科技股份有限公司 | Motor hollow shaft |
| CN113084467A (en) * | 2021-04-06 | 2021-07-09 | 江苏太平洋精锻科技股份有限公司 | Forming processing method of blind hole hollow motor shaft |
-
2021
- 2021-09-26 CN CN202111127545.5A patent/CN113904491A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104114299A (en) * | 2011-12-30 | 2014-10-22 | 巴巴萨海布·尼尔康德·卡利亚尼 | A method for manufacturing hollow shafts |
| CN105522357A (en) * | 2015-11-12 | 2016-04-27 | 陕西一品达石化有限公司 | Machining method for hollow transmission shafts |
| CN106862880A (en) * | 2017-03-06 | 2017-06-20 | 中航动力株洲航空零部件制造有限公司 | hollow shaft processing method |
| CN108131380A (en) * | 2017-11-29 | 2018-06-08 | 江阴市永兴机械制造有限公司 | A kind of motor shaft and its manufacturing method with internal spline |
| CN207664795U (en) * | 2017-12-10 | 2018-07-27 | 南京高传电机制造有限公司 | A kind of New energy automobile motor hollow rotating shaft |
| CN208353138U (en) * | 2018-07-24 | 2019-01-08 | 重庆长安汽车股份有限公司 | Driving motor and drive motor shaft |
| CN109532370A (en) * | 2018-12-31 | 2019-03-29 | 湖北汽车工业学院 | A kind of band lip block hollow sphere pin shaft and manufacturing method |
| CN109695623A (en) * | 2019-02-01 | 2019-04-30 | 河南科技大学 | A kind of integral light-weight quantization gear shaft and its manufacturing process |
| CN110091138A (en) * | 2019-06-18 | 2019-08-06 | 常熟希那基汽车零件有限公司 | A kind of novel hollow production method of shaft |
| CN110332214A (en) * | 2019-08-23 | 2019-10-15 | 宁波巨航冷挤科技有限公司 | A kind of motor shaft and its manufacturing process of the new-energy automobile high-speed driving based on light-weight design |
| CN112311139A (en) * | 2020-11-10 | 2021-02-02 | 精进电动科技股份有限公司 | Motor hollow shaft |
| CN113084467A (en) * | 2021-04-06 | 2021-07-09 | 江苏太平洋精锻科技股份有限公司 | Forming processing method of blind hole hollow motor shaft |
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