CN203316662U - Cold extrusion forming die for high-temperature-alloy high-strength skirt type self-locking hexagonal screw cap - Google Patents
Cold extrusion forming die for high-temperature-alloy high-strength skirt type self-locking hexagonal screw cap Download PDFInfo
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- CN203316662U CN203316662U CN2013201955167U CN201320195516U CN203316662U CN 203316662 U CN203316662 U CN 203316662U CN 2013201955167 U CN2013201955167 U CN 2013201955167U CN 201320195516 U CN201320195516 U CN 201320195516U CN 203316662 U CN203316662 U CN 203316662U
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Abstract
The utility model discloses a cold extrusion forming die for a high-temperature-alloy high-strength skirt type self-locking hexagonal screw cap. The cold extrusion forming die comprises an upper convex die (2), a lower convex die (11) and a concave die (5), wherein a cavity for accommodating the upper convex die (2) and the lower convex die (11) is formed in the concave die (5); an outer side of the upper convex die (2) is arranged in the cavity of the concave die (5) through a convex die sleeve (3); an ejection sleeve (10) is arranged on the outer side of the lower convex die (11) and driven by an ejection rod (16); and a space formed by the concave die (5), the upper convex die (2), the convex die sleeve (3), the lower convex die (11) and the ejection sleeve (10) is a flowing space of a high-temperature alloy bar section. The high-temperature-alloy high-strength skirt type self-locking hexagonal screw cap extruded by the cold extrusion forming die provided by the utility model has the advantages that metal fibers are continuously distributed from a skirt to a hexahedron, metal fibers in holes are extruded by strong extrusion force and vertically combed, and the toughness of the product is improved.
Description
Technical field
The utility model relates to the fine forging technology field, is specifically related to the cold extrusion forming mould of a kind of high temperature alloy high strength skirt formula self-locking six square nuts.
Background technology
Current domestic anti-back high strength six square nuts on the market, as Fig. 1, this class nut does not have skirt, at one end on six aspects, has six to cross in twos the anti-back slot that Central Symmetry communicates, and the length of groove accounts for 1/3 of nut overall length, and anti-back slot is that the machined system of milling forms.The straight step skirt of short cylindrical formula anti-back high-strength nut as shown in Figure 2 on the market, its manufacturability is poor, and being machined to fiber that six aspects will connect skirt, to mill the intensity of having broken bad, and when bearing capacity is large, skirt can the distortion of surrender property.Existing processing technology more is not suitable for processing high temperature alloy high strength skirt formula self-locking six square nuts as shown in Figure 3, particularly skirt connects the hexahedron profile, the hexahedron structure is identical with existing anti-back high strength six square nut structures, skirt end end face is designed to have the face that possesses self-lock ability of certain recessed heart amount, the skirt position consists of 45 ° of circular cones of the straight step switching of short cylindrical, connect on short cylindrical under 45 ° of circular cones and connect hexahedron short cylindrical is formed to powerful supporting, strengthened carrying and the self-lock ability of skirt end face.
In the patent documentation that the patent No. is ZL200310103515.6, a kind of continuously extruding and molding method of manufacturing self lock nut in the cold forging mode is disclosed, this self lock nut comprises nut body and a grappling bead, wherein in the inside of nut body and grappling bead, is provided with the internal thread hole that runs through entire body; The top end face of nut body forms a shoulder and forms tooth section in upright arrangement along the circumferential outer surface of bead; During extrusion modling, recontour and become the modification process of preliminary dimension in the finishing shaping dies successively; Bead preformed process in the bead preforming tool; Bead adjustment and tooth section forming process in bead adjustment and tooth section mould; Punch process.The in the end link stress boring of above-mentioned extrusion process, fragile cutter.
Summary of the invention
The invention technical problem to be solved is to provide the cold extrusion forming mould of a kind of high temperature alloy high strength skirt formula self-locking six square nuts, the nut shape high conformity produced through this mould, the metallic fiber of nut is along its body continuous distributed, interior outline body disposable integral forms, density is high, and skirt position bearing strength is high.
The invention is for solving the problems of the technologies described above, by the following technical solutions:
The cold extrusion forming mould of high temperature alloy high strength skirt formula self-locking six square nuts, comprise upper male mould, lower punch and die, is provided with the cavity of accommodating upper male mould and lower punch in described die; Wherein, the upper male mould outside is arranged in the die cavity by punch case, and the lower punch outside is provided with ejector sleeve, and ejector sleeve is promoted by push rod; The space that die, upper male mould and punch case, lower punch and ejector sleeve form forms the flowing space of high temperature alloy rod section.
Further, described die, upper male mould and punch case form the mobile skirt space that forms 45 ° of circular cones of the straight step switching of short cylindrical of nut of high temperature alloy rod section.
Further, described die, lower punch and ejector sleeve form the mobile outer hexahedron of nut and the space of endoporus of forming of high temperature alloy rod section.
Further, described upper male mould and punch case, lower punch form the mobile space that forms the skirt bottom cavity of nut of high temperature alloy rod section.
Further, the described punch case outside also is provided with the punch positioning sleeve, and upside also is provided with the punch pad.
Further, the described die outside is provided with die centre circle and die outer ring successively, and the die outer ring is supported by die holder.
Further, the described ejector sleeve outside is provided with sliding sleeve; The lower punch outside is provided with the lower punch fixed head, and the lower punch fixed head is for supporting sliding sleeve, and lower punch fixed head downside is provided with the lower punch pad; Lower punch pad downside is provided with lower shoe; Be provided with the movable cavity of push rod in described lower punch fixed head, lower punch pad and lower shoe.
Owing to having adopted technique scheme, the invention has following beneficial effect:
1, mould of the present invention directly extrudes into blank outer hexahedron and the endoporus of nut, compare that blank is met personally light at cold closed-die forging front truck two ends and at through hole of centre drill technique ratio of cold precision forging again, save the boring step, reduced the expense of boring bar tool, when every product has been saved again 20% material and also saved the drillman, reduced product cost when having improved production efficiency.
2, with similar band step circular skirt seat formula anti-back high-strength nut ratio, high alloy high strength skirt formula self-locking of the present invention six square nuts are after pushing up and down, metallic fiber is from skirt to the hexahedron continuous distributed, in hole, metallic fiber also carries out vertical combing under the extruding of powerful extruding force, has improved the toughness of product.
3, the powerful extruding force of mould through the invention extrudes the inside and outside base substrate of high alloy high strength skirt formula self-locking six square nuts that form, material internal has produced very large internal stress, the inherent strain of the skirt of nut and skirt end face particularly, intensity is higher than high temperature alloy high strength skirt formula self-locking six square nuts of other processing method processing herein, make skirt and skirt end face bearing capacity and the self-lock ability of nut, fatigue resistance has improved, and improved service life.
The accompanying drawing explanation
Fig. 1 is the structural representation of standard high strength locking nut;
Fig. 2 is with straight platform skirt formula high strength locking nut schematic diagram;
Fig. 3 is high temperature alloy high strength locking nut product schematic diagram;
Fig. 4 is the high temperature alloy high strength locking nut cold-extruded forging schematic diagram through the forging and stamping of the invention mould;
Fig. 5 is the invention cold-extruded product forming mould structural representation;
The specific embodiment
MJ24X2 skirt formula self-locking six square nuts of take are example: adopt Φ 35mm bar, the rod section that sawing is 16 ± 0.1mm.The flat end end face of the first car of machined is shown in light, and the parallel other end of the car of touching the pillow determine overall length, car other end control rod segment length 15 ± 0.1mm, and turning is to Φ 34.2+0.15mm, a C2 angle.Blank integral body after the machined shot-blasting machine of packing into is carried out to Shot Blasting, and then the blank integral surface applies lubricant.Wherein, lubricant is selected the a830 lubricating oil that Castrol company produces.
In conjunction with Fig. 3, Fig. 4 and Fig. 5, blank carries out cold-extrusion shaping after above-mentioned processing in the cold extrusion forming cavity body of mould, is shaped to the structural feature of skirt, recessed heart blind hole skirt end face, outer hexahedron and the interior blind hole of 45 ° of circular cones of the straight step switching of short cylindrical; Isometric and the mutual concentricity of outer hexahedron and interior blind hole is higher.After cold extrusion, become parison through Ageing Treatment on nut, then machined car hexahedron one end end face is determined the tapping of overall length functions of reaming, chamfering, Passivation Treatment, and according to the inspection eventually of size in figure.
In conjunction with Fig. 5, in cold extrusion forming, the blank of smearing lubricating oil keeps flat in matrix cavity, extrusion billet under the effect of punch and the descending power of punch case, blank produces plastic deformation in matrix cavity under the effect of Cold Extrusion Force, finally is extruded into high strength skirt formula self-locking six square nut base substrates.Concrete, the cold extrusion forming mould comprises upper male mould 2, lower punch 11 and die 5, is provided with the cavity of accommodating upper male mould 2 and lower punch 11 in die 5; Wherein, upper male mould 2 outsides are arranged in die 5 cavitys by punch case 3, and lower punch 11 outsides are provided with ejector sleeve 10, and ejector sleeve 10 is promoted by push rod 16; The space that die 5, upper male mould 2 and punch case 3, lower punch 11 and ejector sleeve 10 form forms the flowing space of high temperature alloy rod section.Further, die 5, upper male mould 2 and punch case 3 form the mobile skirt space that forms 45 ° of circular cones of the straight step switching of short cylindrical of nut of high temperature alloy rod section; Die 5, lower punch 11 and ejector sleeve 10 form the mobile outer hexahedron of nut and the space of endoporus of forming of high temperature alloy rod section; Upper male mould 2 and punch case 3, lower punch 11 form the mobile space that forms the skirt bottom cavity of nut of high temperature alloy rod section.
Wherein, punch case 3 outsides also are provided with punch positioning sleeve 4, and upside also is provided with punch pad 1.Die 5 outsides are provided with die centre circle 6 and die outer ring 7 successively, and die outer ring 7 is supported by die holder 14.Ejector sleeve 10 outsides are provided with sliding sleeve 9; Lower punch 11 outsides are provided with lower punch fixed head 12, and lower punch fixed head 12 is for supporting sliding sleeve 9, and lower punch fixed head 12 downsides are provided with lower punch pad 13; Lower punch pad 13 downsides are provided with the lower shoe 15 that supports die holder 14; Be provided with the movable cavity of push rod 16 in lower punch fixed head 12, lower punch pad 13 and lower shoe 15.
Claims (7)
1. the cold extrusion forming mould of high temperature alloy high strength skirt formula self-locking six square nuts is characterized in that:
Comprise upper male mould (2), lower punch (11) and die (5), be provided with the cavity of accommodating upper male mould (2) and lower punch (11) in described die (5); Wherein, upper male mould (2) outside is arranged in die (5) cavity by punch case (3), and lower punch (11) outside is provided with ejector sleeve (10), and ejector sleeve (10) is promoted by push rod (16); The space that die (5), upper male mould (2) and punch case (3), lower punch (11) and ejector sleeve (10) form forms the flowing space of high temperature alloy rod section.
2. the cold extrusion forming mould of high temperature alloy high strength skirt formula self-locking according to claim 1 six square nuts is characterized in that: described die (5), upper male mould (2) and punch case (3) form the flow skirt space of 45 ° of circular cones of the straight step switching of short cylindrical of forming nut of high temperature alloy rod section.
3. the cold extrusion forming mould of high temperature alloy high strength skirt formula self-locking according to claim 1 six square nuts, is characterized in that: described die (5), lower punch (11) and the mobile outer hexahedron of nut and the space of endoporus of forming of ejector sleeve (10) formation high temperature alloy rod section.
4. the cold extrusion forming mould of high temperature alloy high strength skirt formula self-locking according to claim 1 six square nuts, is characterized in that: described upper male mould (2) and punch case (3), the mobile space that forms the skirt bottom cavity of nut of lower punch (11) formation high temperature alloy rod section.
5. the cold extrusion forming mould of high temperature alloy high strength skirt formula self-locking according to claim 1 six square nuts is characterized in that: described punch case (3) outside also is provided with punch positioning sleeve (4), and upside also is provided with punch pad (1).
6. the cold extrusion forming mould of high temperature alloy high strength skirt formula self-locking according to claim 1 six square nuts, it is characterized in that: described die (5) outside is provided with die centre circle (6) and die outer ring (7) successively, and die outer ring (7) are supported by die holder (14).
7. the cold extrusion forming mould of high temperature alloy high strength skirt formula self-locking according to claim 1 six square nuts, is characterized in that: be provided with sliding sleeve (9) outside described ejector sleeve (10); Lower punch (11) outside is provided with lower punch fixed head (12), and lower punch fixed head (12) is for supporting sliding sleeve (9), and lower punch fixed head (12) downside is provided with lower punch pad (13); Lower punch pad (13) downside is provided with lower shoe (15); Be provided with the movable cavity of push rod (16) in described lower punch fixed head (12), lower punch pad (13) and lower shoe (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201955167U CN203316662U (en) | 2013-04-17 | 2013-04-17 | Cold extrusion forming die for high-temperature-alloy high-strength skirt type self-locking hexagonal screw cap |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201955167U CN203316662U (en) | 2013-04-17 | 2013-04-17 | Cold extrusion forming die for high-temperature-alloy high-strength skirt type self-locking hexagonal screw cap |
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| CN203316662U true CN203316662U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201955167U Expired - Lifetime CN203316662U (en) | 2013-04-17 | 2013-04-17 | Cold extrusion forming die for high-temperature-alloy high-strength skirt type self-locking hexagonal screw cap |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736770A (en) * | 2014-01-26 | 2014-04-23 | 无锡市神力齿轮冷挤有限公司 | Multi-shape cold extrusion die device of inner holes |
| CN108555123A (en) * | 2018-05-07 | 2018-09-21 | 江苏太平洋齿轮传动有限公司 | A kind of High-precision Deep Hole structure of extrusion |
| CN111804750A (en) * | 2019-04-11 | 2020-10-23 | 陈哲豪 | Workpiece forming method with long slotted hole design and die thereof |
| CN114589211A (en) * | 2020-12-07 | 2022-06-07 | 河南平高电气股份有限公司 | Spring seat extrusion die |
-
2013
- 2013-04-17 CN CN2013201955167U patent/CN203316662U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736770A (en) * | 2014-01-26 | 2014-04-23 | 无锡市神力齿轮冷挤有限公司 | Multi-shape cold extrusion die device of inner holes |
| CN108555123A (en) * | 2018-05-07 | 2018-09-21 | 江苏太平洋齿轮传动有限公司 | A kind of High-precision Deep Hole structure of extrusion |
| CN111804750A (en) * | 2019-04-11 | 2020-10-23 | 陈哲豪 | Workpiece forming method with long slotted hole design and die thereof |
| CN114589211A (en) * | 2020-12-07 | 2022-06-07 | 河南平高电气股份有限公司 | Spring seat extrusion die |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: High tech Development Zone, Henan city of Luoyang province Yan Guang Lu 471000 torch Park A building room 517 Patentee after: LUOYANG QINHAN PRECISION INDUSTRIALS CO.,LTD. Address before: 471000 Henan city of Luoyang province Luoyang city high tech Zone on the north side of the Dragon Linlu drag technical school Patentee before: LUOYANG QINHAN COLD FORGING Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
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| CX01 | Expiry of patent term |