CN111421300A - Narrow series thin-wall conical bearing inner ring or outer ring blank forming and turning process - Google Patents

Narrow series thin-wall conical bearing inner ring or outer ring blank forming and turning process Download PDF

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Publication number
CN111421300A
CN111421300A CN201911082878.3A CN201911082878A CN111421300A CN 111421300 A CN111421300 A CN 111421300A CN 201911082878 A CN201911082878 A CN 201911082878A CN 111421300 A CN111421300 A CN 111421300A
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Prior art keywords
turning
inner ring
material section
straight material
forming
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CN201911082878.3A
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Chinese (zh)
Inventor
王恩来
邱雁淩
金战
肖壮勇
王景虎
王忠阳
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XIANGYANG AUTOMOBILE BEARING CO LTD
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XIANGYANG AUTOMOBILE BEARING CO LTD
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Priority to CN201911082878.3A priority Critical patent/CN111421300A/en
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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
    • B23P15/003—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass bearings

Abstract

The invention discloses a narrow series thin-wall conical bearing inner ring or outer ring blank forming and turning process. Belongs to the technical field of forging and turning of inner and outer rings of bearing parts. The method mainly solves the problems of low production efficiency and high rejection rate of the existing processing method. It is mainly characterized by comprising the following steps:
Figure 100004_DEST_PATH_IMAGE002
turning the pipe material into a straight material section with a required size by using a turning machine according to design requirements;
Figure 100004_DEST_PATH_IMAGE004
deburring the turned straight material section by using a barrel;
Figure 100004_DEST_PATH_IMAGE006
phosphorizing the deburring straight material section and coating a lubricant;
Figure 100004_DEST_PATH_IMAGE008
swing grinding and forming;
Figure 100004_DEST_PATH_IMAGE010
and (5) finish turning. The invention has the characteristics of greatly improving the product percent of pass and high production efficiency, is suitable for batch production, and is mainly used for processing the inner ring and the outer ring of the narrow series thin-wall high-precision conical thin-wall bearing.

Description

Narrow series thin-wall conical bearing inner ring or outer ring blank forming and turning process
Technical Field
The invention belongs to the technical field of forging and turning of inner and outer rings of bearing parts. In particular to a forming and turning process of a narrow series thin-wall conical bearing inner ring blank.
Background
The 6-speed gearbox of the DSI company in Australia is a narrow series thin-wall high-precision conical thin-wall bearing inner and outer rings, and the structural size is as follows: the ratio of the height of the outer ring to the outer diameter is as follows: 0.09-0.12, the wall thickness is 5-5.5 mm, and the ratio of the height of the inner ring to the diameter of the raceway is as follows: 0.15-0.2 mm and the wall thickness is 1.4-2 mm. The narrow series thin-wall high-precision conical thin-wall bearing mainly exits a 6-speed gearbox of DSI company in Australia, each box has two sets, and the products of the type need 51500 gearboxes in 2019, 80000 gearboxes in 2020, and 95000 gearboxes in 2021; the above is the demand of one company, and the products have wide development prospect in the international market.
At present, the inner ring of the narrow series thin-wall high-precision conical thin-wall bearing is mainly processed by the conventional process: the process flow for processing the inner ring and the outer ring mainly by adopting the conventional process comprises the following steps: blanking → single inner ring forging forming → spheroidizing annealing → rough turning → fine turning, and has the disadvantages that the forging production efficiency is low because the inner ring is formed by a single piece; and secondly, the product percent of pass is only 50 percent due to the lack of forced aging process and the like after the spheroidizing annealing process and before the rough turning process.
Disclosure of Invention
The invention aims to provide a method for manufacturing the narrow series thin-wall high-precision conical thin-wall bearing inner ring, which aims to overcome the defects that the cold pendulum grinding equipment forming technology can ensure the product quality, has high qualification rate and high production efficiency, and is suitable for mass production.
The technical solution of the invention is as follows: a narrow series thin wall conical bearing inner race or outer race blank shaping and lathing process, characterized by including the following steps:
Figure 100002_DEST_PATH_IMAGE002
turning the pipe material into a straight material section with a required size by using a turning machine according to design requirements;
Figure 100002_DEST_PATH_IMAGE004
deburring the turned straight material section by using a barrel;
Figure 100002_DEST_PATH_IMAGE006
phosphorizing the deburring straight material section and coating a lubricant;
Figure 100002_DEST_PATH_IMAGE008
swing grinding and forming;
Figure 100002_DEST_PATH_IMAGE010
and (5) finish turning.
The process in the technical solution of the invention comprises the following steps:
Figure 294796DEST_PATH_IMAGE002
turning the pipe material with the outer diameter of phi 86 mm and the inner diameter of phi 73 mm into an inner ring straight material section with the length of 21.3 mm by using a turning and cutting machine;
Figure 211937DEST_PATH_IMAGE004
the lathed inner ring straight material section is deburred by adopting a barrel cluster according to the process design requirement, and the processing time is 3 hours;
Figure 929357DEST_PATH_IMAGE006
phosphorizing the straight material section of the deburring inner ring and coating a lubricant;
Figure 324566DEST_PATH_IMAGE008
swing grinding and forming;
Figure 138938DEST_PATH_IMAGE010
and (5) finish turning.
The process in the technical solution of the invention comprises the following steps:
Figure 961401DEST_PATH_IMAGE002
turning the pipe material with the outer diameter of phi 86 mm and the inner diameter of phi 73 mm into an inner ring straight material section with the length of 21.3 mm by using a turning and cutting machine;
Figure 415385DEST_PATH_IMAGE004
the lathed inner ring straight material section is deburred by adopting a barrel cluster according to the process design requirement, and the processing time is 3 hours;
Figure 614285DEST_PATH_IMAGE006
phosphorizing the straight material section of the deburring inner ring and coating a lubricant;
Figure 283164DEST_PATH_IMAGE008
swing grinding and forming;
Figure 276528DEST_PATH_IMAGE010
and (5) finish turning.
Description of the invention
Figure 234119DEST_PATH_IMAGE008
The method comprises the following steps:
Figure 971131DEST_PATH_IMAGE008
phosphating and coating with lubricantThe straight material section is formed into an inner ring turning part blank through swing grinding.
The invention adopts pipe material, turning, barrel stringing deburring, phosphorizing, lubricant coating, swing grinding forming inner ring turning blank and finish turning forming, thereby not only greatly improving the production efficiency of the blank, reducing the rough turning process, but also greatly improving the product percent of pass. The invention aims to provide a method for manufacturing the narrow series thin-wall high-precision conical thin-wall bearing inner ring, which aims to overcome the defects that the cold pendulum grinding equipment forming technology can ensure the product quality, has high qualification rate and high production efficiency, and is suitable for mass production.
Drawings
FIG. 1 is a schematic view of the tube forming structure of the present invention.
Fig. 2 is a schematic structural diagram of the pendulum rolling inner ring of the invention.
Fig. 3 is a schematic view of the inner ring structure of the product of the invention.
Detailed Description
The invention relates to a narrow series thin-wall conical bearing inner ring or outer ring blank forming and turning process, which comprises the following steps:
Figure 494516DEST_PATH_IMAGE002
turning the pipe material into a straight material section with a required size by using a turning machine according to design requirements;
Figure 924361DEST_PATH_IMAGE004
deburring the turned straight material section by using a barrel;
Figure 87358DEST_PATH_IMAGE006
phosphorizing the deburring straight material section and coating a lubricant;
Figure 362481DEST_PATH_IMAGE008
swing grinding and forming;
Figure 5952DEST_PATH_IMAGE010
and (5) finish turning.
The forming and turning process of the inner ring blank of the narrow series thin-wall conical bearing in the 6-speed gearbox of the DSI company in Australia is as follows:
Figure 278802DEST_PATH_IMAGE002
turning the pipe material with the outer diameter of phi 86 mm and the inner diameter of phi 73 mm into an inner ring straight material section with the length of 21.3 mm by using a turning and cutting machine, wherein the inner ring straight material section is shown in figure 1;
Figure 7723DEST_PATH_IMAGE004
the lathed inner ring straight material section is deburred by adopting a barrel cluster according to the process design requirement (no acute angle), and the processing time is 3 hours;
Figure 86538DEST_PATH_IMAGE006
phosphorizing the straight material section of the deburring inner ring (phosphorizing treatment is carried out at 40 ℃, the phosphorizing time is 4-10 min, and the weight requirement of a phosphorized film is more than or equal to 3g/m2) Coating a lubricant (the surface is uniform);
Figure 584515DEST_PATH_IMAGE008
swing-grinding the phosphorized and lubricant-coated straight material section into an inner ring turning part blank as shown in fig. 2;
Figure 534324DEST_PATH_IMAGE010
and (3) carrying out finish turning on the inner ring turning part blank to form the inner ring turning part blank, as shown in figure 3.
The forming and turning process of the inner ring blank of the narrow series thin-wall conical bearing in the 6-speed gearbox of the DSI company in Australia is as follows:
Figure 484962DEST_PATH_IMAGE002
turning the pipe material with the outer diameter of phi 86 mm and the inner diameter of phi 73 mm into an inner ring straight material section with the length of 21.3 mm by using a turning and cutting machine；
Figure 367467DEST_PATH_IMAGE004
The lathed inner ring straight material section is deburred by adopting a barrel cluster according to the process design requirement, and the processing time is 3 hours;
Figure 719951DEST_PATH_IMAGE006
phosphorizing the straight material section of the deburring inner ring and coating a lubricant;
Figure 600183DEST_PATH_IMAGE008
swing-grinding the straight material section which is phosphorized and coated with the lubricant into an inner ring turning part blank;
Figure 38117DEST_PATH_IMAGE010
and carrying out finish turning on the inner ring turning part blank to form.
Compared with the prior art, the invention has the following advantages: firstly, the rough turning process is reduced; secondly, the production efficiency of the blank (piece/7 seconds) is greatly improved; and 100000 parts of the inner ring and the outer ring of the thin-wall high-precision conical thin-wall bearing are processed, and the qualification rate reaches 99%.

Claims (5)

1. A narrow series thin wall conical bearing inner race or outer race blank shaping and lathing process, characterized by including the following steps:
Figure DEST_PATH_IMAGE002
turning the pipe material into a straight material section with a required size by using a turning machine according to design requirements;
Figure DEST_PATH_IMAGE004
deburring the turned straight material section by using a barrel;
Figure DEST_PATH_IMAGE006
phosphorizing the deburring straight material section and coating a lubricant;
Figure DEST_PATH_IMAGE008
swing grinding and forming;
Figure DEST_PATH_IMAGE010
and (5) finish turning.
2. The narrow series thin-wall conical bearing inner ring or outer ring blank forming and turning process according to claim 1, characterized by comprising the following steps:
Figure 689724DEST_PATH_IMAGE002
turning the pipe material with the outer diameter of phi 86 mm and the inner diameter of phi 73 mm into an inner ring straight material section with the length of 21.3 mm by using a turning and cutting machine;
Figure 606865DEST_PATH_IMAGE004
the lathed inner ring straight material section is deburred by adopting a barrel cluster according to the process design requirement, and the processing time is 3 hours;
Figure 527547DEST_PATH_IMAGE006
phosphorizing the straight material section of the deburring inner ring and coating a lubricant;
Figure 922756DEST_PATH_IMAGE008
swing grinding and forming;
Figure 737129DEST_PATH_IMAGE010
and (5) finish turning.
3. The narrow series thin-wall conical bearing inner ring or outer ring blank forming and turning process according to claim 1, characterized by comprising the following steps:
Figure 559591DEST_PATH_IMAGE002
turning the pipe material with the outer diameter of phi 86 mm and the inner diameter of phi 73 mm into an inner ring straight material section with the length of 21.3 mm by using a turning and cutting machine;
Figure 810313DEST_PATH_IMAGE004
the lathed inner ring straight material section is deburred by adopting a barrel cluster according to the process design requirement, and the processing time is 3 hours;
Figure 9213DEST_PATH_IMAGE006
phosphorizing the straight material section of the deburring inner ring and coating a lubricant;
Figure 678092DEST_PATH_IMAGE008
swing grinding and forming;
Figure 671456DEST_PATH_IMAGE010
and (5) finish turning.
4. The process for forming and turning the blank of the inner ring or the outer ring of the narrow series thin-wall conical bearing according to the claim 1 or 2, wherein the step one is
Figure 425785DEST_PATH_IMAGE008
The method comprises the following steps:
Figure 303742DEST_PATH_IMAGE008
and (3) swinging and grinding the straight material section which is phosphorized and coated with the lubricant to form an inner ring turning part blank.
5. The process for forming and turning the blank of the inner ring or the outer ring of the narrow series thin-wall conical bearing according to claim 3, wherein the step one is
Figure 827127DEST_PATH_IMAGE008
The method comprises the following steps:
Figure 256972DEST_PATH_IMAGE008
and (3) swinging and grinding the straight material section which is phosphorized and coated with the lubricant to form an inner ring turning part blank.
CN201911082878.3A 2019-11-07 2019-11-07 Narrow series thin-wall conical bearing inner ring or outer ring blank forming and turning process Pending CN111421300A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114473375A (en) * 2021-12-31 2022-05-13 苏州友创金属制品有限公司 Processing technology of inner ring and outer ring of ultrathin bearing

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Publication number Priority date Publication date Assignee Title
CN114473375A (en) * 2021-12-31 2022-05-13 苏州友创金属制品有限公司 Processing technology of inner ring and outer ring of ultrathin bearing

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