CN101844153B - Metal bar material and pipe material precision hot helical rolling and blanking roller and blanking method thereof - Google Patents
Metal bar material and pipe material precision hot helical rolling and blanking roller and blanking method thereof Download PDFInfo
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- CN101844153B CN101844153B CN2010101845083A CN201010184508A CN101844153B CN 101844153 B CN101844153 B CN 101844153B CN 2010101845083 A CN2010101845083 A CN 2010101845083A CN 201010184508 A CN201010184508 A CN 201010184508A CN 101844153 B CN101844153 B CN 101844153B
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- annular groove
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Abstract
The invention belongs to the technical field of metal plastic making, particularly provides a metal bar material and pipe material precision hot helical rolling and blanking roller and a blanking method thereof, and are applicable to low carbon steel, medium carbon steel, low alloy steel and bearing steel metal material. The invention processes a spiral ledge which presents in a V-shaped ring slot on a spiral hole type roller, forms the V-shaped ring slot on the metal bar and pipe materials, utilizes the characteristics of a steel blue brittleness area to exert a certain force to shear the prefabricated V-shaped ring slot, stimulates the crack to extend to the periphery from the surface of the metal bar and pipe materials along the radial direction, and thereby the constant size blanking is completed and good section quality is obtained. The invention has the advantages that: the helical rolling V-shaped ring slot belongs to plastic making and has no metal waste, and has the notable technological economic advantages of energy saving, material saving, high efficiency, excellent quality, low cost and the like.
Description
Technical field
The invention belongs to the metal forming technical field, the roll and the baiting method thereof of a kind of metal bar material and the blanking of pipe material precision hot helical rolling is provided especially, be applicable to mild steel, medium carbon steel, low-alloy steel and bearing steel metal material.
Technical background
The cutting stock problems of metal bar material and pipe material extensively are present in the procedure for preparation of various parts.It is low that baiting methods such as shearing at present, sawing, high energy cutting exist stock utilization to some extent, and blanking pressure is big, and energy consumption is high, problems such as the low and blanking cross section quality difference of productivity ratio.
Summary of the invention
The objective of the invention is to solve baiting methods such as present shearing, sawing, high energy cutting, to exist stock utilization to some extent low, and blanking pressure is big, and energy consumption is high, problems such as the low and blanking cross section quality difference of productivity ratio.
The roll of a kind of metal bar material and the blanking of pipe material precision hot helical rolling: it is characterized in that roll is the helical groove roll; On the helical groove roll, be processed with the spiral ridge of shaping V-type annular groove; Roller diameter is 5～7 with rolling bars and tubes material diameter ratio; The helical groove roll of rolling V-type annular groove partly is made up of shown in Figure 1 the part of nipping, spiral ridge, the part of nipping of helical groove roll is a frustum of a cone, and nipping of blank realized by the frustum of a cone; Spiral ridge partly is divided into be shaped district, Runout area; The girth of spiral ridge is 360 °, and the basic screw-pitch of spiral ridge equates with the pitch of V-type annular groove, lead angle β=1 °～6 °, and the spiral ridge bottom surface is constant all the time apart from the distance of roll axial line to be that the spiral ridge bottom surface is on same cylinder; In the district that is shaped; The rib height of spiral ridge starting point begins to be elevated to gradually from the spiral ridge bottom surface and is rolled the deep equality of V-type annular groove, and being rolled the V-type annular groove degree of depth is 3.03mm～5.05mm, and the spiral ridge rib is wide to be 0.5mm～3.03mm; The side of spiral ridge and the parallel sided of being rolled the V-type annular groove; Be shaped district's terminal point fin end face, side and bottom surface be one complete reverse V-shaped, corresponding fully with the V-type groove thermal state sizes that is rolled, the girth that fin is distinguished in shaping is 120 °～240 °; Runout area; Spiral ridge is corresponding fully with the V-type groove thermal state sizes that is rolled, and the V-type annular groove that is shaped is basically carried out shaping, to improve rolled piece presentation quality and dimensional accuracy; Also have the effect of guiding simultaneously, the girth of Runout area fin is 360 ° of girths that deduct the district's fin that is shaped.
Roll of the present invention is installed on the skew rolling mill, is heated to 900 ℃～1150 ℃ metal bars and tubes material 1, be pushed in the skew rolling mill as shown in Figure 2; Two oblique roller rolling 1, rolls 23 with identical pass, its axis intersects 2 α angles in two roller vertical plane projections, intersects the α angle with rolling centerline; α=1 °～6 °, two rolls turn to identical, bars and tubes material 1 reverse rotation under the effect of roll; And the center line axially-movable of the edge two roller projection angles of cut, roll whenever rotates a circle and accomplishes the rolling of a V-type annular groove, utilizes the characteristic in the crisp district of SteelBlue; Temperature drop is applied certain power to the bars and tubes material of the prefabricated V-type annular groove in blue shortness district to be sheared; Impel the surface radially circumference expansion of crackle, can obtain comparatively neat and well spaced cutting plane, thereby accomplish blanking by bars and tubes material.
A kind of metal bar material of the present invention and pipe material precision hot helical rolling baiting method are applicable to blanking diameter 10mm～80mm; Length is greater than 10mm, but is no more than 2 times of blanking diameters; Wall thickness is not less than the bars and tubes material blanking of mild steel, medium carbon steel, low-alloy steel and the bearing steel metal material of 5mm.
The present invention provides a kind of new metal bar material and pipe material baiting method; Method with the continuous Plastic Forming of a kind of high efficiency, low energy consumption, high accuracy, high material-saving rate; On the metal bars and tubes material, form the V-type annular groove, utilize the characteristic in the crisp district of SteelBlue that prefabricated V-type annular groove is applied certain power shearing, impel the surface radially circumference expansion of crackle by the metal bars and tubes material; Thereby accomplish the scale blanking, obtain good cross section quality.
The invention has the advantages that:
Oblique milling V-type annular groove belongs to Plastic Forming does not have the metal waste; Roll whenever rotates a circle and accomplishes the rolling of a V-type annular groove; Rolling 50～100 the V-type annular grooves of per minute, the characteristic of utilizing the crisp district of SteelBlue applies certain power to prefabricated V-type groove and shears and impel the surface radially circumference expansion of crackle by bars and tubes material, thereby accomplishes blanking; Obtain good cross section quality, have significantly technological and economical advantages such as energy-conservation, material-saving, efficient, high-quality, low cost.
Description of drawings
Fig. 1 is the roll sketch map.
Fig. 2 operation of rolling sketch map of the present invention, rod pipe raw material 1, roll 1, roll 23.
Fig. 3 roll of the present invention locus sketch map, two roll axis are at space crossed 2 α angles.Two oblique roller rollings with same-handed pass, its axis become 2 α angles in the space, intersect the α angle with rolling centerline, α=1 °～6 °.
Fig. 4 is a steel pipe V-type annular groove sketch map.
Fig. 5 is a round metal bar V-type annular groove sketch map.
The specific embodiment
Embodiment 1
Diameter as shown in Figure 4 is 31mm, and thickness is 6mm, and length is a blanking instance that shuts out the V-type annular groove on the bearing steel pipe of 3000mm in advance, with diameter 200mm; Lead angle β=1.47 °, basic screw-pitch is 16.16mm, and the spiral ridge forming length is 180 °, and spiral ridge Runout area length is 180 °; The fin Breadth Maximum is 2.525mm, and maximum height is 3.03mm, a pair roller be installed on the skew rolling mill; With the diameter that is heated to 1100 ℃ is 31mm, and thickness is 6mm, and length is the bearing steel pipe 1 of 3000mm; Push in the skew rolling mill as shown in Figure 2, two oblique roller rollings 1, roll 23 with identical pass; Its axis intersects 2.94 ° of angles in two roller vertical plane projections, intersects 1.47 ° of angles with rolling centerline, α=1.47 °; It is identical that two rolls turn to, bearing steel pipe 1 reverse rotation under the effect of roll, and along the center line axially-movable of the two roller projection angles of cut; Roll whenever rotates a circle and accomplishes the rolling of a V-type annular groove, utilizes the characteristic in bearing steel blue shortness district, and temperature drop is applied certain power shearing to the bearing steel pipe of the prefabricated V-type annular groove in bearing steel blue shortness district; Impelling the surface radially circumference expansion of crackle by the pipe material, can obtain comparatively neat and well spaced cutting plane, is the bushed bearing blanking of 16mm thereby accomplish cut lengths.
Embodiment 2
Diameter as shown in Figure 5 is 41mm, and length is a blanking instance that shuts out the V-type annular groove on the round bar of No. 45 steel of 2000mm in advance, is 240mm with diameter; Lead angle is β=2.3 °, and basic screw-pitch is 30.3mm, and the spiral ridge forming length is 210 °; Spiral ridge Runout area length is 150 °, and the fin Breadth Maximum is 3.03mm, and maximum height is that a pair roller of 4.04mm is installed on the skew rolling mill; With the diameter that is heated to 1100 ℃ is 41mm, and length is No. 45 steel round bars 1 of 2000mm, pushes in the skew rolling mill as shown in Figure 2; Two oblique roller rollings 1 with identical pass, roll 23, its axis intersects 4.6 ° of angles in two roller vertical plane projections; Intersect 2.3 ° of angles with rolling centerline, α=2.3 °, two rolls turn to identical; Round bar 1 reverse rotation under the effect of roll, and the center line axially-movable of the edge two roller projection angles of cut, roll whenever rotate a circle and accomplish the rolling of a V-type annular groove; Utilize the characteristic in No. 45 crisp districts of SteelBlue, the round bar of the prefabricated V-type annular groove in the crisp district of temperature drop to 45 SteelBlue is applied certain power shear, impel the surface radially circumference expansion of crackle by round bar; Can obtain comparatively neat and well spaced cutting plane, be the round bar blanking of 30mm thereby accomplish cut lengths.
Claims (3)
1. the roll of metal bar material and the blanking of pipe material precision hot helical rolling; It is characterized in that roll is the helical groove roll, on the helical groove roll, be processed with the spiral ridge of shaping V-type annular groove; Roller diameter is 5～7 with rolling bars and tubes material diameter ratio; The helical groove roll of rolling V-type annular groove partly is made up of the part of nipping, spiral ridge, and the part of nipping of helical groove roll is a frustum of a cone, and nipping of blank realized by the frustum of a cone; Spiral ridge partly is divided into be shaped district, Runout area; The girth of spiral ridge is 360 °, and the basic screw-pitch of spiral ridge equates with the pitch of V-type annular groove, lead angle β=1 °～6 °, and the spiral ridge bottom surface is constant all the time apart from the distance of roll axial line, and promptly the spiral ridge bottom surface is on same cylinder; In the district that is shaped: the rib height of spiral ridge starting point begins to be elevated to gradually from the spiral ridge bottom surface and is rolled the deep equality of V-type annular groove; Being rolled the V-type annular groove degree of depth is 3.03mm～5.05mm; The spiral ridge rib is wide to be 0.5mm～3.03mm, the side of spiral ridge and the parallel sided of being rolled the V-type annular groove, be shaped distinguish terminal point fin end face, side and bottom surface be one complete reverse V-shaped; Corresponding fully with the V-type groove thermal state sizes that is rolled, the girth of the district's fin that is shaped is 120 °～240 °; Runout area: spiral ridge is corresponding fully with the V-type groove thermal state sizes that is rolled; V-type annular groove to being shaped basically carries out shaping; To improve rolled piece presentation quality and dimensional accuracy, also have the effect of guiding simultaneously, the girth of Runout area fin is 360 ° of girths that deduct the district's fin that is shaped.
2. adopt the baiting method of the roll of described metal bar material of claim 1 and the blanking of pipe material precision hot helical rolling, it is characterized in that, the described roll of claim 1 is installed on the skew rolling mill; The metal bars and tubes material that is heated to 900 ℃～1150 ℃ is pushed in the skew rolling mill, two oblique roller rollings with identical pass, its axis intersects 2 α angles in two roller vertical plane projections; Intersect the α angle with rolling centerline, α=1 °～6 °, two rolls turn to identical; Bars and tubes material reverse rotation under the effect of roll; And the center line axially-movable of the edge two roller projection angles of cut, roll whenever rotates a circle and accomplishes the rolling of a V-type annular groove, utilizes the characteristic in the crisp district of SteelBlue; Temperature drop is applied certain power to the bars and tubes material of the prefabricated V-type annular groove in blue shortness district to be sheared; Impel the surface radially circumference expansion of crackle, can access comparatively neat and well spaced cutting plane, thereby accomplish blanking by bars and tubes material.
3. according to the baiting method of the roll of described metal bar material of claim 2 and the blanking of pipe material precision hot helical rolling, it is characterized in that this baiting method is applicable to blanking diameter 10mm～80mm; Length is greater than 10mm, but is no more than 2 times of blanking diameters; Wall thickness is not less than the bars and tubes material blanking of mild steel, medium carbon steel, low-alloy steel and the bearing steel metal material of 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101845083A CN101844153B (en) | 2010-05-20 | 2010-05-20 | Metal bar material and pipe material precision hot helical rolling and blanking roller and blanking method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101845083A CN101844153B (en) | 2010-05-20 | 2010-05-20 | Metal bar material and pipe material precision hot helical rolling and blanking roller and blanking method thereof |
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| Publication Number | Publication Date |
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| CN101844153A CN101844153A (en) | 2010-09-29 |
| CN101844153B true CN101844153B (en) | 2012-08-22 |
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| CN2010101845083A Expired - Fee Related CN101844153B (en) | 2010-05-20 | 2010-05-20 | Metal bar material and pipe material precision hot helical rolling and blanking roller and blanking method thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317320A (en) * | 2013-05-23 | 2013-09-25 | 西安交通大学 | Efficient precise blanking method for pipe thermal stress prefabrication microcracks |
| CN107876579A (en) * | 2017-12-06 | 2018-04-06 | 江阴戴勒姆动力设备有限公司 | One kind is around piece ratio-frequency welding feed arrangement |
| CN108393418B (en) * | 2018-03-29 | 2020-04-07 | 浙江天马轴承有限公司 | Manufacturing method for improving surface layer performance of bearing steel ball |
| CN109513746A (en) * | 2018-12-05 | 2019-03-26 | 德龙钢铁有限公司 | A kind of hot-strip method and rough rolling device for small dimension continuous casting billet |
| CN110076198B (en) * | 2019-04-30 | 2020-02-28 | 北京科技大学 | Two-roller skew rolling forming device and method for round bar |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85201263U (en) * | 1985-04-22 | 1986-02-12 | 邯郸钢铁总厂 | Helical-holed oblique roller for rolling ball mill steel ball |
| SU1260087A1 (en) * | 1984-08-06 | 1986-09-30 | Белорусский Ордена Трудового Красного Знамени Политехнический Институт | Arrangement for rolling cylindrical billets from rod |
| EP0842721A1 (en) * | 1996-10-31 | 1998-05-20 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Method for processing a rotor used for a super charger and the like |
| CN1569359A (en) * | 2004-04-30 | 2005-01-26 | 北京科技大学 | Screw hole type skew rolling forming method at room temperature for anode phosphor-copper |
-
2010
- 2010-05-20 CN CN2010101845083A patent/CN101844153B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1260087A1 (en) * | 1984-08-06 | 1986-09-30 | Белорусский Ордена Трудового Красного Знамени Политехнический Институт | Arrangement for rolling cylindrical billets from rod |
| CN85201263U (en) * | 1985-04-22 | 1986-02-12 | 邯郸钢铁总厂 | Helical-holed oblique roller for rolling ball mill steel ball |
| EP0842721A1 (en) * | 1996-10-31 | 1998-05-20 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Method for processing a rotor used for a super charger and the like |
| CN1569359A (en) * | 2004-04-30 | 2005-01-26 | 北京科技大学 | Screw hole type skew rolling forming method at room temperature for anode phosphor-copper |
Non-Patent Citations (1)
| Title |
|---|
| 贾瀚龙等.斜轧金属管料V形槽的研究.《锻压技术》.2009,第34卷(第3期),第85－87页. * |
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| CN101844153A (en) | 2010-09-29 |
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