CN201089000Y - Steel ball cold heading die - Google Patents
Steel ball cold heading die Download PDFInfo
- Publication number
- CN201089000Y CN201089000Y CNU2007200038220U CN200720003822U CN201089000Y CN 201089000 Y CN201089000 Y CN 201089000Y CN U2007200038220 U CNU2007200038220 U CN U2007200038220U CN 200720003822 U CN200720003822 U CN 200720003822U CN 201089000 Y CN201089000 Y CN 201089000Y
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- Prior art keywords
- ball
- steel ball
- die cavity
- core
- spherical
- Prior art date
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- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 238000009415 formwork Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000227 grinding Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000009416 shuttering Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
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Abstract
The utility model relates to a cold heading mold for steel balls, mainly comprising two parts: a mold core and mold shell. The utility model is applicable for bearing ball production. In the utility model, the top part and the bottom part of the mold core are respectively provided with ball shaped steel pit, which results in a ball conical shape of the die cavity of the die core. The utility model can reduce the maximum stress during the cold heading production of steel balls, improve the service life of the steel ball die, reduce the internal stress of the steel ball, improve the quality of the steel balls, and save materials.
Description
Technical field
The utility model relates to the metal stamping field, and a kind of specifically steel ball cold heading mould is applicable to bearing steel ball production.
Background technology
Steel ball cold heading mould core die cavity interior shape commonly used at present is spherical, and the ball base of producing also is spherical.Carbide alloy is generally adopted in spherical mold core pattern chamber, and grinding forms behind sintering, and it is consistent that spherical mold core pattern chamber grinding quality requires, because size restrictions, top, grinding spherical mold core pattern chamber (end) portion is difficulty very, and grinding quality does not have core rod die cavity middle part high.
When raw material plasticity in spherical core rod die cavity flows, the steel ball cold heading mould is stressed constantly to change, the radial component and the axial thrust load of contrast diverse location point, can find more near core rod die cavity top (end) portion, radial component is littler, axial thrust load is bigger, and the metal deformation drag is also bigger.Therefore, in steel ball ball base shaping final stage, it is the comparison difficulty that metal will be full of core rod die cavity top (end) portion during cold-heading, and mould can be subjected to very big stress, causes die life not long.So require ball swage core rod die cavity interior shape can do suitable adjustment, reduce the maximum stress in the steel ball production, make the life-span of ball swage to improve, the steel ball internal stress of producing also can reduce.
The original material of each steel ball ball base adopts (cold-)drawn (steel)wire high speed transversely cutting, produce one section cylinder blank, all there is otch at each cylinder blank two ends, what cut well also all is irregular again, when cylinder blank during at cold-heading globulate ball base, the cutter otch texture at cylinder blank two ends can influence the quality at place, ball base the two poles of the earth.
Summary of the invention
The purpose of this utility model is to overcome existing technological deficiency, and a kind of steel ball cold heading mould is provided, and mould core die cavity interior shape is improved, and has designed a kind of ball taper die core rod die cavity.
The technical problem that solves: the utility model provides the steel ball cold heading mould in a kind of ball conical die core pattern chamber.Can allow metal be full of mould core die cavity top (end) portion more easily, thereby reduce the maximum stress in the steel ball production, reduce the steel ball internal stress, improve the life-span of ball swage in cold-heading; Can allow simultaneously the cutter otch part material at blank two ends exclude last shaping steel ball scope, improve the quality at place, steel ball ball base the two poles of the earth; The mould core die cavity is easy to process.
Technical scheme: start with from mould core die cavity interior shape, designed a kind of new ball taper die core rod die cavity; On spherical steel ball cold heading mould core die cavity basis commonly used, (end) portion increases a spherical pit again on top, spherical mold core pattern chamber, makes whole core rod die cavity present the ball taper.The core rod die cavity adopts carbide alloy, before sintering, just do the balling-up taper, difference grinding core rod spherical die cavity in middle part and core rod push up the spherical die cavity of (end) portion behind the sintering, and core rod top (end) portion sphere die cavity has the cutter otch part material function of filling the blank two ends, and quality requirement is lower when grinding.
Beneficial effect: the utility model can reduce the maximum stress in the steel ball cold heading production, makes the life-span of ball swage to improve, and the steel ball internal stress of producing also can reduce; Can allow metal be full of mould core die cavity top (end) portion more easily, can be filled in mould core die cavity top (end) portion to the cutter notch portion material at cylinder blank two ends simultaneously, exclude last shaping steel ball scope, improve steel ball quality, can also save raw material, the mould core die cavity is easy to process.
Description of drawings
Fig. 1 is a ball taper steel ball cold heading die tool schematic diagram
Fig. 2 is the inner die cavity schematic diagram of ball taper steel ball cold heading die tool
Fig. 3 is the stressed schematic diagram of spherical steel ball blanks moulding
Fig. 4 be the moulding of ball taper steel ball blanks when finishing in mould schematic diagram
Fig. 5 is a ball taper steel ball ball base schematic diagram
Fig. 6 is spherical steel ball ball base schematic diagram
Among the figure 1, upper shuttering, 2, the assembly technology ditch, 3, formwork utmost point hole, 4, core rod utmost point hole, 5, the spherical die cavity of core rod top (end) portion, 6, fixed gap, 7, upper mold core, 8, the spherical die cavity in core rod middle part, 9, lower mold core, 10, following formwork, 11, the steel ball ball base in the processing, 12, ball taper ball base the two poles of the earth, 13, ball taper ball base endless belt (equator), 14, spherical ball base the two poles of the earth, 15, spherical ball base endless belt (equator)
The specific embodiment
In Fig. 1, upper mold core (7) interference is assemblied in the upper shuttering (1) of band assembly technology ditch (2), and lower mold core (9) also interference is assemblied in the following formwork (10) of band assembly technology ditch.Upper mold core (7) and lower mold core (9) consistent size, symmetry is placed, upper shuttering (1) and following formwork (10) consistent size, symmetry is placed.
In Fig. 2, the inner cavity shape of upper mold core (7), lower mold core (9) is not a sphere, but is made of a ball taper ball-type chamber the spherical die cavity in core rod middle part (8) and the spherical die cavity in core rod top (5).Die cavity forms with carbide alloy grinding behind sintering, and the core rod top spherical die cavity of (end) portion (5) quality requirement when grinding is lower than the core rod spherical die cavity in middle part (8).
In Fig. 3, it is middle along with upper mold core (7) slowly moves down with lower mold core (9) that steel ball ball base (11) in the processing is placed on upper mold core (7), distance between upper mold core (7) and the lower mold core (9) is more and more approaching, form the two poles of the earth (12) of steel ball ball base in the core rod utmost point hole (4), between upper mold core (7) and lower mold core (9), form endless belt (13), A point, B are ordered in the contrast forming process radial component Px and axial thrust load Py, can find more near (top) portion at the bottom of the core rod die cavity, Px is littler for radial component, and axial thrust load Py is bigger.Because the existence of the core rod top spherical die cavity of (end) portion (5) is arranged, when metal arrives core rod top (end) portion spherical die cavity (5) position, axial thrust load Py can limit within the specific limits, no longer increase, the cutter notch portion material at blank two ends can be filled into core rod die cavity top (end) portion eaily, up to the complete moulding of steel ball ball base (as shown in Figure 4).
Ball taper steel ball ball base (as shown in Figure 5) is compared with the spherical steel ball ball base among Fig. 6, and ball taper ball base the two poles of the earth (12) volume can hold the cutter notch portion material at blank two ends more easily greater than spherical ball base the two poles of the earth (14).Because there are more materials to be filled into ball taper ball base the two poles of the earth (12), ball taper ball base endless belt (equator) (13) is compared with spherical ball base endless belt (equator) (15), and diameter is littler.
Claims (1)
1. the steel ball cold heading mould mainly comprises core rod and formwork two partly, and core rod and formwork are interference fit; It is characterized in that respectively increasing a spherical pit at spherical die cavity top of core rod and bottom, the die cavity interior shape that makes core rod is the ball taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200038220U CN201089000Y (en) | 2007-02-02 | 2007-02-02 | Steel ball cold heading die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200038220U CN201089000Y (en) | 2007-02-02 | 2007-02-02 | Steel ball cold heading die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201089000Y true CN201089000Y (en) | 2008-07-23 |
Family
ID=39860757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200038220U Expired - Fee Related CN201089000Y (en) | 2007-02-02 | 2007-02-02 | Steel ball cold heading die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201089000Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102886477A (en) * | 2012-10-19 | 2013-01-23 | 中国二十二冶集团有限公司 | Ball core closed-die forging process using valve body ball core forging die |
| CN103008516A (en) * | 2013-01-05 | 2013-04-03 | 侯宇岷 | Steel-ball continuous-heating forming upsetting machine |
| CN103551478A (en) * | 2013-10-30 | 2014-02-05 | 安庆机床有限公司 | Automatic detection device for high-speed steel ball cold header |
| CN103831383A (en) * | 2012-11-20 | 2014-06-04 | 江苏天工钛业科技有限公司 | Die special for upsetting of titanium ingot |
| CN105014002A (en) * | 2014-04-30 | 2015-11-04 | 青岛飞燕临港精密钢球制造有限公司 | Manufacturing method of miniature steel balls |
| CN106040769A (en) * | 2016-07-22 | 2016-10-26 | 江阴东邦钢球机械有限公司 | Hydraulic steel ball forming machine |
| CN109079441A (en) * | 2018-08-29 | 2018-12-25 | 人本集团有限公司 | The production technology of high quality steel bearing balls |
| CN111069383A (en) * | 2019-11-22 | 2020-04-28 | 中国航发哈尔滨轴承有限公司 | Improvement of stainless steel ball cold stamping technology for aviation bearing |
| CN112792285A (en) * | 2021-01-15 | 2021-05-14 | 常熟市龙特耐磨球有限公司 | Steel ball overturning and forging device |
| CN114054658A (en) * | 2021-10-16 | 2022-02-18 | 刘晨旭 | Preparation equipment and preparation process of degradable aluminum-based material |
| CN115213333A (en) * | 2022-09-19 | 2022-10-21 | 常熟非凡新材股份有限公司 | Wear-resistant steel ball forging device for mining machinery research and development |
-
2007
- 2007-02-02 CN CNU2007200038220U patent/CN201089000Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102886477A (en) * | 2012-10-19 | 2013-01-23 | 中国二十二冶集团有限公司 | Ball core closed-die forging process using valve body ball core forging die |
| CN103831383A (en) * | 2012-11-20 | 2014-06-04 | 江苏天工钛业科技有限公司 | Die special for upsetting of titanium ingot |
| CN103008516A (en) * | 2013-01-05 | 2013-04-03 | 侯宇岷 | Steel-ball continuous-heating forming upsetting machine |
| CN103551478A (en) * | 2013-10-30 | 2014-02-05 | 安庆机床有限公司 | Automatic detection device for high-speed steel ball cold header |
| CN105014002A (en) * | 2014-04-30 | 2015-11-04 | 青岛飞燕临港精密钢球制造有限公司 | Manufacturing method of miniature steel balls |
| CN106040769A (en) * | 2016-07-22 | 2016-10-26 | 江阴东邦钢球机械有限公司 | Hydraulic steel ball forming machine |
| CN109079441A (en) * | 2018-08-29 | 2018-12-25 | 人本集团有限公司 | The production technology of high quality steel bearing balls |
| CN111069383A (en) * | 2019-11-22 | 2020-04-28 | 中国航发哈尔滨轴承有限公司 | Improvement of stainless steel ball cold stamping technology for aviation bearing |
| CN111069383B (en) * | 2019-11-22 | 2021-11-26 | 中国航发哈尔滨轴承有限公司 | Improvement of stainless steel ball cold stamping technology for aviation bearing |
| CN112792285A (en) * | 2021-01-15 | 2021-05-14 | 常熟市龙特耐磨球有限公司 | Steel ball overturning and forging device |
| CN114054658A (en) * | 2021-10-16 | 2022-02-18 | 刘晨旭 | Preparation equipment and preparation process of degradable aluminum-based material |
| CN115213333A (en) * | 2022-09-19 | 2022-10-21 | 常熟非凡新材股份有限公司 | Wear-resistant steel ball forging device for mining machinery research and development |
| CN115213333B (en) * | 2022-09-19 | 2023-02-28 | 常熟非凡新材股份有限公司 | A wear-resisting steel ball forges and beats device for mining machinery research and development |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080723 Termination date: 20110202 |