CN114273872A - Machining method of thin-wall bearing ring forging - Google Patents
Machining method of thin-wall bearing ring forging Download PDFInfo
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- CN114273872A CN114273872A CN202111621424.6A CN202111621424A CN114273872A CN 114273872 A CN114273872 A CN 114273872A CN 202111621424 A CN202111621424 A CN 202111621424A CN 114273872 A CN114273872 A CN 114273872A
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- ring forging
- outer diameter
- equal
- chuck
- machining
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- 238000005242 forging Methods 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000003754 machining Methods 0.000 title claims abstract description 22
- 238000003825 pressing Methods 0.000 claims abstract description 36
- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- 238000010079 rubber tapping Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 2
- 210000000078 claw Anatomy 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 description 4
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Abstract
The invention discloses a machining method of a thin-wall bearing ring forging, which comprises the following steps: firstly, turning a process blank holder which protrudes inwards; pressing the technological blank holder by using an equal-height pressing tool on a first positioning circular disc on a chuck, rotating the ring forging, and adjusting the center of the ring forging by matching with an outer diameter meter; turning the upper end face, turning the inner chamfer and the outer chamfer and turning the inner diameter and the outer diameter; hoisting and turning the ring forging by 180 degrees, installing a second positioning disc on the chuck, adsorbing the ring forging by using magnetic clamping jaws on the second positioning disc, rotating the ring forging, and adjusting the center of the ring forging by matching with an outer diameter meter; the lower end face, the inner chamfer and the outer chamfer, the inner diameter and the outer diameter of the vehicle and the raceway of the vehicle are turned. The invention has the advantages that: the clamping device can clamp the ring forging, and can not generate pressure on the thin wall of the ring forging, so that the deformation of the ring forging can be prevented.
Description
Technical Field
The invention relates to a machining method of a thin-wall bearing ring forging.
Background
When the thin-wall bearing ring forging is machined, the thin-wall bearing ring forging needs to be clamped, but the conventional clamping mode of expanding an inner circle or clamping an outer circle is easy to deform the thin-wall bearing ring forging because the wall thickness of the thin-wall bearing ring forging is thin.
Disclosure of Invention
In order to solve the problems, the invention provides a machining method of a thin-wall bearing ring forging, wherein the thin-wall bearing ring forging is clamped by an equal-height pressing tool and a magnetic clamping jaw in the machining process, so that the purpose of preventing the thin-wall bearing ring forging from deforming is achieved.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the machining method of the thin-wall bearing ring forging comprises the following steps:
the method comprises the following steps: firstly, roughly processing the outer circular wall and the inner circular wall of the ring forging, and reserving an inward-protruding technological blank holder on the inner circular wall;
step two: installing a first positioning disc on a chuck of a machining center, uniformly arranging a plurality of equal-height compression tools on the first positioning disc at intervals along the circumference, placing the ring forging on each equal-height compression tool, arranging an outer diameter meter on the machining center, enabling the outer diameter meter to abut against the outer circular wall of the ring forging, starting the chuck, enabling the chuck to drive the first positioning disc and the ring forging to slowly rotate, observing the outer diameter meter in the rotating process, tapping the outer circular wall of the ring forging by using a small hammer to adjust the center of the ring forging until the runout of the outer diameter meter is less than or equal to 0.5, and fixing the equal-height compression tools on a process pressure edge of the ring forging;
step three: turning the upper end face, turning the inner chamfer and the outer chamfer, and turning the inner diameter and the outer diameter, wherein when the inner diameter and the outer diameter are turned, the turning is stopped when the distance between the cutting tool and the equal-height compact tool is 8-10 mm;
step four: lifting and overturning the ring forging in the third step for 180 degrees, enabling the upper end surface of the ring forging to face downwards, taking down the first positioning disc and taking down the first positioning disc from the chuck, installing a second positioning disc on the chuck, uniformly arranging a plurality of magnetic suction clamping jaws on the second positioning disc at intervals along the circumference, enabling the upper end surface of the ring forging to abut against the magnetic suction clamping jaws, enabling the outer diameter meter to abut against the outer circular wall which is turned, starting the chuck, enabling the chuck to drive the second positioning disc and the ring forging to slowly rotate, observing the outer diameter meter in the rotating process, then tapping the outer circular wall of the ring forging by using a small hammer to adjust the center of the ring forging until the runout of the outer diameter meter is less than or equal to 0.3, and starting the magnetic suction clamping jaws to suck the ring forging;
step five: the lower end face, the inner chamfer and the outer chamfer, the inner diameter and the outer diameter of the vehicle and the raceway of the vehicle are turned.
Further, in the machining method of the thin-walled bearing ring forging, the small hammer in the second step and the fourth step is a wood small hammer.
Further, according to the machining method of the thin-walled bearing ring forging, the thickness of the process blank holder in the first step and the second step is 10 mm.
Furthermore, according to the machining method of the thin-wall bearing ring forging, ten equal-height compression tools are arranged on the first disc, and ten magnetic suction clamping jaws are uniformly arranged on the second disc at intervals along the circumference.
Further, in the machining method of the thin-walled bearing ring forging, the equal-height compression tool includes: the connecting part is provided with a threaded hole, the Z-shaped pressing block is provided with a through hole, the through hole on the Z-shaped pressing block is aligned with the threaded hole on the connecting part, a bolt is in threaded connection between the aligned through hole and the threaded hole, a plurality of cushion blocks are arranged between the Z-shaped pressing block and the connecting part, and a boss surface of the Z-shaped pressing block is pressed against a process pressing edge of the ring forging.
Further, in the machining method of the thin-walled bearing ring forging, when the process blank holder is pressed, a diagonal tightening mode is adopted, that is: and sequentially tightening the two bolts on the symmetrical equal-height pressing tools to tightly press the two symmetrical Z-shaped pressing blocks on the process pressing edge.
Further, in the machining method of the thin-walled bearing ring forging, the first positioning disk and the second positioning disk are connected with the chuck through bolts.
The invention has the advantages that: the equal-height pressing tool on the first positioning circular disc can play a role in clamping and positioning the ring forging through the pressing process blank pressing, pressure cannot be generated on the thin wall of the ring forging, the thin wall of the ring forging cannot deform, when the process blank pressing needs to be removed, the ring forging is adsorbed on the magnetic adsorption clamping jaws on the second positioning circular disc, the magnetic adsorption clamping jaws can also play a role in clamping and positioning the ring forging, and pressure cannot be generated on the thin wall of the ring forging; when the ring forging is placed on the equal-height compression tool and the magnetic clamping jaws, the roundness of the ring forging can be conveniently adjusted by measuring the roundness of the ring forging by using an external diameter meter.
Drawings
Fig. 1 is a schematic structural view of a ring forging clamped by a first disc and an equal-height compression tool in the machining method of the thin-wall bearing ring forging.
Fig. 2 is a schematic structural view of a thin-walled bearing ring forging according to the present invention, wherein the ring forging is clamped by a second disc and a magnetic chuck.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the preferred embodiments.
The invention relates to a machining method of a thin-wall bearing ring forging, which comprises the following steps:
the method comprises the following steps: firstly, roughly processing the outer circular wall and the inner circular wall of the ring forging, and reserving an inward-protruding process blank holder with the thickness of 10mm on the inner circular wall;
step two: connecting a first positioning disc on a chuck of a machining center through bolts, uniformly arranging ten equal-height compression tools on the first positioning disc at intervals along the circumference, placing the ring forging on each equal-height compression tool, arranging an outer diameter meter on the machining center, enabling the outer diameter meter to abut against the outer circular wall of the ring forging, starting the chuck, enabling the chuck to drive the first positioning disc and the ring forging to slowly rotate, observing the outer diameter meter in the rotating process, tapping the outer circular wall of the ring forging by using a small wooden hammer to adjust the center of the ring forging until the runout of the outer diameter meter is less than or equal to 0.5, and fixing the equal-height compression tools on a process pressure edge of the ring forging;
step three: turning the upper end face, turning the inner chamfer and the outer chamfer, and turning the inner diameter and the outer diameter, wherein when the inner diameter and the outer diameter are turned, the turning is stopped when the distance between the cutting tool and the equal-height compact tool is 8-10 mm;
step four: lifting and overturning the ring forging in the third step for 180 degrees, enabling the upper end surface of the ring forging to face downwards, taking down the first positioning circular disc and taking down the first positioning circular disc from the chuck, connecting the second positioning circular disc to the chuck through bolts, uniformly arranging ten magnetic suction clamping jaws on the second positioning circular disc along the circumference at intervals, enabling the upper end surface of the ring forging to abut against the magnetic suction clamping jaws, enabling an outer diameter gauge to abut against the outer circular wall which is turned, starting the chuck, enabling the chuck to drive the second positioning circular disc and the ring forging to slowly rotate, observing the outer diameter gauge in the rotating process, using a small wooden hammer to tap the outer circular wall of the ring forging to adjust the center of the ring forging until the runout of the outer diameter gauge is less than or equal to 0.3, starting the magnetic suction clamping jaws, and sucking the ring forging by the magnetic suction clamping jaws;
step five: the lower end face, the inner chamfer and the outer chamfer, the inner diameter and the outer diameter of the vehicle and the raceway of the vehicle are turned.
In this embodiment, the equal-height compression tool includes: the ring forging piece is characterized by comprising an equal-height block 1 and a Z-shaped pressing block 2, a connecting part 11 which is recessed downwards is arranged on the equal-height block 1, a threaded hole is formed in the connecting part 11, a through hole is formed in the Z-shaped pressing block 2, the through hole in the Z-shaped pressing block 2 is aligned with the threaded hole in the connecting part 11, a bolt 3 is connected between the aligned through hole and the aligned threaded hole in a threaded mode, a plurality of cushion blocks 4 are arranged between the Z-shaped pressing block 2 and the connecting part 11, and a boss face 21 of the Z-shaped pressing block 2 is pressed against a process pressing edge of a ring forging piece. When the process blank holder is pressed, a diagonal tightening mode is adopted, namely: and sequentially tightening the two bolts 3 on the symmetrical equal-height pressing tools to tightly press the two symmetrical Z-shaped pressing blocks 2 on the process pressing edge.
The invention has the advantages that: the equal-height pressing tool on the first positioning circular disc can play a role in clamping and positioning the ring forging through the pressing process blank pressing, pressure cannot be generated on the thin wall of the ring forging, the thin wall of the ring forging cannot deform, when the process blank pressing needs to be removed, the ring forging is adsorbed on the magnetic adsorption clamping jaws on the second positioning circular disc, the magnetic adsorption clamping jaws can also play a role in clamping and positioning the ring forging, and pressure cannot be generated on the thin wall of the ring forging; when the ring forging is placed on the equal-height compression tool and the magnetic clamping jaws, the roundness of the ring forging can be conveniently adjusted by measuring the roundness of the ring forging by using an external diameter meter.
Claims (7)
1. The machining method of the thin-wall bearing ring forging is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: firstly, roughly processing the outer circular wall and the inner circular wall of the ring forging, and reserving an inward-protruding technological blank holder on the inner circular wall;
step two: installing a first positioning disc on a chuck of a machining center, uniformly arranging a plurality of equal-height compression tools on the first positioning disc at intervals along the circumference, placing the ring forging on each equal-height compression tool, arranging an outer diameter meter on the machining center, enabling the outer diameter meter to abut against the outer circular wall of the ring forging, starting the chuck, enabling the chuck to drive the first positioning disc and the ring forging to slowly rotate, observing the outer diameter meter in the rotating process, tapping the outer circular wall of the ring forging by using a small hammer to adjust the center of the ring forging until the runout of the outer diameter meter is less than or equal to 0.5, and fixing the equal-height compression tools on a process pressure edge of the ring forging;
step three: turning the upper end face, turning the inner chamfer and the outer chamfer, and turning the inner diameter and the outer diameter, wherein when the inner diameter and the outer diameter are turned, the turning is stopped when the distance between the cutting tool and the equal-height compact tool is 8-10 mm;
step four: lifting and overturning the ring forging in the third step for 180 degrees, enabling the upper end surface of the ring forging to face downwards, taking down the first positioning disc and taking down the first positioning disc from the chuck, installing a second positioning disc on the chuck, uniformly arranging a plurality of magnetic suction clamping jaws on the second positioning disc at intervals along the circumference, enabling the upper end surface of the ring forging to abut against the magnetic suction clamping jaws, enabling the outer diameter meter to abut against the outer circular wall which is turned, starting the chuck, enabling the chuck to drive the second positioning disc and the ring forging to slowly rotate, observing the outer diameter meter in the rotating process, then tapping the outer circular wall of the ring forging by using a small hammer to adjust the center of the ring forging until the runout of the outer diameter meter is less than or equal to 0.3, and starting the magnetic suction clamping jaws to suck the ring forging;
step five: the lower end face, the inner chamfer and the outer chamfer, the inner diameter and the outer diameter of the vehicle and the raceway of the vehicle are turned.
2. The method of machining a thin walled bearing ring forging of claim 1, wherein: in the second step and the fourth step, the small hammer is a wood small hammer.
3. The method of machining a thin walled bearing ring forging of claim 1, wherein: the thickness of the process blank holder in the first step and the second step is 10 mm.
4. Method of machining thin-walled bearing ring forgings according to claim 1 or 2 or 3, characterized in that: ten equal-height compression tools are arranged on the first disc, and ten magnetic suction claws are arranged on the second disc at equal intervals along the circumference.
5. The method of machining a thin walled bearing ring forging of claim 4, wherein: equal-height compression tooling comprises: the connecting part is provided with a threaded hole, the Z-shaped pressing block is provided with a through hole, the through hole on the Z-shaped pressing block is aligned with the threaded hole on the connecting part, a bolt is in threaded connection between the aligned through hole and the threaded hole, a plurality of cushion blocks are arranged between the Z-shaped pressing block and the connecting part, and a boss surface of the Z-shaped pressing block is pressed against a process pressing edge of the ring forging.
6. The method of machining a thin walled bearing ring forging of claim 5, wherein: when the process blank holder is pressed, a diagonal tightening mode is adopted, namely: and sequentially tightening the two bolts on the symmetrical equal-height pressing tools to tightly press the two symmetrical Z-shaped pressing blocks on the process pressing edge.
7. The method of machining a thin walled bearing ring forging of claim 1, wherein: the first positioning disk and the second positioning disk are connected with the chuck through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111621424.6A CN114273872B (en) | 2021-12-28 | 2021-12-28 | Machining method of thin-wall bearing ring forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111621424.6A CN114273872B (en) | 2021-12-28 | 2021-12-28 | Machining method of thin-wall bearing ring forging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114273872A true CN114273872A (en) | 2022-04-05 |
| CN114273872B CN114273872B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111621424.6A Active CN114273872B (en) | 2021-12-28 | 2021-12-28 | Machining method of thin-wall bearing ring forging |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1351722A1 (en) * | 1986-02-19 | 1987-11-15 | Кировский Политехнический Институт | Lathe self-centering chuck |
| US6415694B1 (en) * | 2000-06-09 | 2002-07-09 | Kaloust P. Sogoian | Method and chuck for precision machining of thin walled sleeves and for manufacturing engine cylinder liner sleeves |
| RU2253563C2 (en) * | 2003-05-19 | 2005-06-10 | Московский государственный открытый университет | Grip for thin-wall parts |
| CN101332516A (en) * | 2007-06-25 | 2008-12-31 | 上海海事大学 | Processing technique of annular thin wall part |
| US20090096177A1 (en) * | 2007-10-16 | 2009-04-16 | Rohm Georg | Method of holding easily deformed workpieces and chuck for carrying out the method |
| CN201244687Y (en) * | 2008-04-16 | 2009-05-27 | 上海海事大学 | Special tooling for processing ring shaped thin wall member |
| CN105750563A (en) * | 2016-03-07 | 2016-07-13 | 上海交通大学 | Method for enhancing hard turning circularity of thin-wall annular parts |
| CN111468653A (en) * | 2020-04-15 | 2020-07-31 | 张家港海锅新能源装备股份有限公司 | Ring rolling tool for producing bearing ring forge piece |
| CN113305504A (en) * | 2021-04-29 | 2021-08-27 | 中船澄西船舶修造有限公司 | Machining method of thin-wall short shaft sleeve |
| CN113458433A (en) * | 2021-07-28 | 2021-10-01 | 宜春市诚顺机械制造有限公司 | Clamping tool for processing external thread of large thin-wall cylinder |
| DE202021104751U1 (en) * | 2020-09-04 | 2021-10-19 | Yibin Vocational And Technical College | Clamping tool suitable for industrial design for thin-walled aluminum alloy plates |
-
2021
- 2021-12-28 CN CN202111621424.6A patent/CN114273872B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1351722A1 (en) * | 1986-02-19 | 1987-11-15 | Кировский Политехнический Институт | Lathe self-centering chuck |
| US6415694B1 (en) * | 2000-06-09 | 2002-07-09 | Kaloust P. Sogoian | Method and chuck for precision machining of thin walled sleeves and for manufacturing engine cylinder liner sleeves |
| RU2253563C2 (en) * | 2003-05-19 | 2005-06-10 | Московский государственный открытый университет | Grip for thin-wall parts |
| CN101332516A (en) * | 2007-06-25 | 2008-12-31 | 上海海事大学 | Processing technique of annular thin wall part |
| US20090096177A1 (en) * | 2007-10-16 | 2009-04-16 | Rohm Georg | Method of holding easily deformed workpieces and chuck for carrying out the method |
| CN201244687Y (en) * | 2008-04-16 | 2009-05-27 | 上海海事大学 | Special tooling for processing ring shaped thin wall member |
| CN105750563A (en) * | 2016-03-07 | 2016-07-13 | 上海交通大学 | Method for enhancing hard turning circularity of thin-wall annular parts |
| CN111468653A (en) * | 2020-04-15 | 2020-07-31 | 张家港海锅新能源装备股份有限公司 | Ring rolling tool for producing bearing ring forge piece |
| DE202021104751U1 (en) * | 2020-09-04 | 2021-10-19 | Yibin Vocational And Technical College | Clamping tool suitable for industrial design for thin-walled aluminum alloy plates |
| CN113305504A (en) * | 2021-04-29 | 2021-08-27 | 中船澄西船舶修造有限公司 | Machining method of thin-wall short shaft sleeve |
| CN113458433A (en) * | 2021-07-28 | 2021-10-01 | 宜春市诚顺机械制造有限公司 | Clamping tool for processing external thread of large thin-wall cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114273872B (en) | 2024-01-23 |
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