CN102319808B - Hot stamping mould for nut - Google Patents

Hot stamping mould for nut Download PDF

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Publication number
CN102319808B
CN102319808B CN 201110304712 CN201110304712A CN102319808B CN 102319808 B CN102319808 B CN 102319808B CN 201110304712 CN201110304712 CN 201110304712 CN 201110304712 A CN201110304712 A CN 201110304712A CN 102319808 B CN102319808 B CN 102319808B
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CN
China
Prior art keywords
mould
plate
nut
dynamic
fixed head
Prior art date
Application number
CN 201110304712
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Chinese (zh)
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CN102319808A (en
Inventor
孙浩儿
陶至清
陆颂荫
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宁波浩渤工贸有限公司
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Application filed by 宁波浩渤工贸有限公司 filed Critical 宁波浩渤工贸有限公司
Priority to CN 201110304712 priority Critical patent/CN102319808B/en
Publication of CN102319808A publication Critical patent/CN102319808A/en
Application granted granted Critical
Publication of CN102319808B publication Critical patent/CN102319808B/en

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Abstract

The invention discloses a hot stamping mould for a nut. The hot stamping mould comprises an upper mould frame, an upper mould base plate, a fixing plate, an elastomer and a stripper plate which are sequentially fixedly connected from top to bottom, a lower mould frame, a lower mould base plate, a lower mould fixing plate, a base plate and a lower female mould plate which are sequentially fixedly connected from bottom to top, and a mould shank, wherein the lower end of the mould shank is fixed on the upper mould frame; a hollow upper male mould is fixed in a stepped hole which is formed by the stripper plate, the elastomer and the fixing plate; a mould core and a lower moving mould matched in a sliding mode are arranged in a stepped hole which is formed by the lower female mould plate and the base plate; the cross sections of the upper male mould, the hole of the lower female mould plate and the upper part of the lower moving mould are hexagons; and a jacking mechanism is arranged at the bottom of the lower moving mould. Due to the hot stamping mould for the nut, the production process of the nut is simple, time consumption is low, materials are saved, and the strength of the nut can be increased.

Description

Hot stamping mould for nut

Technical field

The present invention relates to a kind of hot stamping die, relate to or rather a kind of for the production of the half-finished hot stamping die of nut.

Background technology

Nut is widely used in industry, and hex nut is divided into thick hexagonnut and hexagon thin nut by thickness.General technical process of producing hex nut is divided into: 1, use the nut Cold header raw material to be processed into the semi-finished product that do not have internal thread by blank-pressure ball-pressure hexagonal-punching; 2, by the continuous tapping of tapping machine semi-finished product are carried out internal thread machining, heat-treat with surface treatment and form finished product.Existing shortcoming of producing the half-finished technology existence of nut is: when producing high nut, tonnage to Cold header has higher requirement, above-mentioned technical process is complicated, consuming time many, waste of material is large during punching, not again crystallization in the cold pier production process, be prone to the high nut insufficient strength and affect service life, must guarantee through heat treatment process the intensity of high nut.

Summary of the invention

The technical problem to be solved in the present invention is, a kind of hot stamping die is provided, and utilizes this hot stamping die, can make the production technology of nut simple, consuming time less, save material and can increase the intensity of nut.

Technical solution of the present invention is, a kind of hot stamping mould for nut with following structure is provided, comprise die shank, the top mold frame that is fixedly connected with from top to bottom, upper die plate, fixed head, elastomer, stripper plate and the lower mold holder that is fixedly connected sequentially from the bottom up, the counterdie backing plate, the counterdie fixed head, backing plate and recessed template, described die shank lower end is fixed on the top mold frame, described stripper plate, be fixed with the upper male mould of hollow in the shoulder hole that elastomer and fixed head three consist of, described recessed template and backing plate consist of shoulder hole in the lower dynamic model that is provided with core rod and is slidingly matched, described upper male mould, the cross section on the top of the hole of recessed template and lower dynamic model is hexagon, and the bottom surface of described lower dynamic model is provided with ejecting mechanism.

The described lower dynamic model inner surface that refers to described lower dynamic model that is slidingly matched cooperates with core slide, the outer surface of described lower dynamic model and recessed template and backing plate consist of shoulder hole be slidingly matched.

The cross section of the bottom of described lower dynamic model is hexagon or circle, the hole that the lower shape of dynamic model matches under the Kong Weiyu on the described backing plate.

After adopting above structure, hot stamping mould for nut of the present invention compared with prior art has the following advantages:

Because what hot stamping mould for nut of the present invention adopted is a kind of hot stamping die, the raw material that adopt are seamless steel pipes, to put into mould after the heating behind the seamless steel pipe blank, matched moulds carries out punching press, die sinking, discharging is finished in the lump for pressure ball and the pressure hexagonal structure of nut, and technical process is simple, consuming time few; The raw material that adopt are seamless steel pipes, need not carry out punching, save the production time and save material; What the present invention adopted is a kind of hot stamping die, carries out drop stamping, can make metal material body intercrystalline, and the density of metal material and intensity are increased.

As a kind of improvement of the present invention, described top mold frame, upper die plate, fixed head, elastomer and stripper plate are fixedly connected with and refer to be provided with the combination double-screw bolt that can slide up and down between stripper plate, elastomer and the fixed head, are fixedly connected with by securing member between described top mold frame, upper die plate, the fixed head.Described combination double-screw bolt upper end upward sliding when elastomer compresses, down sliding when elastomer recovers, and can not drop out fixed head, guarantee that elastomer can be fixedly connected with fixed head all the time with stripper plate, and be difficult for being fractureed that service life is longer.

As a kind of improvement of the present invention, the profile of described top mold frame, upper die plate, fixed head, stripper plate, recessed template, backing plate, counterdie fixed head, counterdie backing plate and lower mold holder is cylindrical.Cylindrical is zhou duicheng tuxing, is difficult for sideslip during punching press, and punching press product axial symmetry out is good.

Description of drawings

Shown in Figure 1 is the structural representation of hot stamping mould for nut of the present invention.

It is the structural representation after Fig. 1 die sinking shown in Fig. 2.

Structural representation when shown in Fig. 3 being Fig. 1 discharging.

It is the plan structure schematic diagram of the product of Fig. 1 hot stamping mould for nut production of the present invention shown in Fig. 4.

It is the left TV structure schematic diagram of Fig. 4 shown in Fig. 5.

Shown in the figure: 1, die shank, 2, securing member, 3, combination double-screw bolt, 4, guide pillar, 5, top mold frame, 6, upper die plate, 7, fixed head, 8, elastomer, 9, upper male mould, 10, stripper plate, 11, recessed template, 12, product, 13, securing member, 14, guide pillar, 15, core rod, 16, backing plate, 17, lower dynamic model, 17.1, top, 17.2, the bottom, 18, the counterdie fixed head, 19, counterdie backing plate, 20, lower mold holder, 21, ejecting mechanism.

The specific embodiment

The invention will be further described below in conjunction with the drawings and specific embodiments.

See also Fig. 1, Fig. 2, Fig. 3 Fig. 4 and shown in Figure 5, hot stamping mould for nut of the present invention comprises die shank 1, the top mold frame 5 that is fixedly connected with from top to bottom, upper die plate 6, fixed head 7, elastomer 8, stripper plate 10 and the lower mold holder 20 that is fixedly connected sequentially from the bottom up, counterdie backing plate 19, counterdie fixed head 18, backing plate 16 and recessed template 11, described die shank 1 lower end is fixed on the top mold frame 5, described stripper plate 10, be fixed with the upper male mould 9 of hollow in the shoulder hole that elastomer 8 and fixed head 7 threes consist of, described recessed template 11 and backing plate 16 both consist of shoulder hole in the lower dynamic model 17 that is provided with core rod 15 and is slidingly matched, described upper male mould 9, the cross section on the top 17.1 of the hole of recessed template 11 and lower dynamic model 17 is hexagon, and the bottom surface of described lower dynamic model 17 is provided with ejecting mechanism 21.

The be slidingly matched inner surface and the core rod 15 that refer to described lower dynamic model 17 of described lower dynamic model 17 is slidingly matched, the outer surface of described lower dynamic model 17 and recessed template 11 and backing plate 16 both consist of shoulder hole be slidingly matched.

The cross section of the bottom 17.2 of described lower dynamic model 17 is hexagon or circle, the hole that bottom 17.2 shapes of dynamic model 17 match under the Kong Weiyu on the described backing plate 16.

Described top mold frame 5, upper die plate 6, fixed head 7, elastomer 8 and stripper plate 10 are fixedly connected with and refer to be provided with between stripper plate 10, elastomer 8 and the fixed head 7 the combination double-screw bolt 3 that can slide up and down, and are fixedly connected with by securing member 2 between described top mold frame 5, upper die plate 6, the fixed head 7.

The profile of described top mold frame 5, upper die plate 6, fixed head 7, stripper plate 10, recessed template 11, backing plate 16, counterdie fixed head 18, counterdie backing plate 19 and lower mold holder 20 is cylindrical.Cylindrical is zhou duicheng tuxing, is difficult for sideslip during punching press, and punching press product axial symmetry out is good.

In the present embodiment, described fixed head 7, upper die plate 6 lead by four guide pillars 4 with top mold frame 5, and are fixedly connected with by four securing members 2; Described elastomer 8 is polyurethane elastomer or polyvinyl chloride elastomer; Described recessed template 11, backing plate 16, counterdie fixed head 18, counterdie backing plate 19 are fixedly connected with lower mold holder 20 and refer to that lower mold holder 20 is provided with four securing members 13 from the bottom up, described securing member 13 passes successively lower mold holder 20, counterdie backing plate 19, counterdie fixed head 18, backing plate 16 and is fixedly connected with recessed template 11, and is provided with four guide pillars 14 that are used for location and guiding.

Please refer to shown in Figure 1, cooperate being placed on the recessed template 11 and with core rod 15 after the seamless steel pipe heating of cutting off first, during matched moulds, the large guide pillar fit of the large die sleeve of top mold frame 5 both sides and lower mold holder 20, tighten fastening piece for mold closing, the top ledge of core rod 15 enters the middle vacancy of upper male mould 9, press moves down with die shank 1, compresses elastomeric 8, upper male mould 9 punching press raw material form product 12, lower dynamic model 17 also is being pushed down motion, is against on the counterdie backing plate 19, and described counterdie backing plate 19 is against on the lower mold holder 20.

Please refer to shown in Figure 2ly, during die sinking, press is up mobile with die shank 1, unclamps fastening piece for mold closing, and the large die sleeve of top mold frame 5 both sides separates with the large guide pillar of lower mold holder 20, elastomer 8 recoveries.Please refer to shown in Figure 3ly, the ejecting mechanism 21 with four guide pillars that is arranged under the lower dynamic model 17 up pushes up lower dynamic model, and product 12 is ejected recessed template 11, and the structure of described product is finished a drop stamping process of nut drop stamping with reference to Fig. 4 and shown in Figure 5.

Claims (4)

1. hot stamping mould for nut, comprise die shank (1), the top mold frame that is fixedly connected with from top to bottom (5), upper die plate (6), fixed head (7), elastomer (8), stripper plate (10) and the lower mold holder (20) that is fixedly connected sequentially from the bottom up, counterdie backing plate (19), counterdie fixed head (18), backing plate (16) and recessed template (11), described die shank (1) lower end is fixed on the top mold frame (5), described stripper plate (10), be fixed with the upper male mould (9) of hollow in the shoulder hole that elastomer (8) and fixed head (7) three consist of, described recessed template (11) and backing plate (16) both consist of shoulder hole in the lower dynamic model (17) that is provided with core rod (15) and is slidingly matched, it is characterized in that: described upper male mould (9), the cross section on the top (17.1) of the hole of recessed template (11) and lower dynamic model (17) is hexagon, and the bottom surface of described lower dynamic model (17) is provided with ejecting mechanism (21); The be slidingly matched inner surface and the core rod (15) that refer to described lower dynamic model (17) of described lower dynamic model (17) is slidingly matched, the outer surface of described lower dynamic model (17) and recessed template (11) and backing plate (16) both consist of shoulder hole be slidingly matched.
2. hot stamping mould for nut according to claim 1, it is characterized in that: the cross section of the bottom (17.2) of described lower dynamic model (17) is hexagon or circle, the hole that bottom (17.2) shape of dynamic model (17) matches under the Kong Weiyu on the described backing plate (16).
3. hot stamping mould for nut according to claim 1, it is characterized in that: described top mold frame (5), upper die plate (6), fixed head (7), elastomer (8) and stripper plate (10) are fixedly connected with and refer to be provided with between stripper plate (10), elastomer (8) and the fixed head (7) the combination double-screw bolt (3) that can slide up and down, and are fixedly connected with by securing member (2) between described top mold frame (5), upper die plate (6), the fixed head (7).
4. hot stamping mould for nut according to claim 1, it is characterized in that: the profile of described top mold frame (5), upper die plate (6), fixed head (7), stripper plate (10), recessed template (11), backing plate (16), counterdie fixed head (18), counterdie backing plate (19) and lower mold holder (20) is cylindrical.
CN 201110304712 2011-10-10 2011-10-10 Hot stamping mould for nut CN102319808B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110304712 CN102319808B (en) 2011-10-10 2011-10-10 Hot stamping mould for nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110304712 CN102319808B (en) 2011-10-10 2011-10-10 Hot stamping mould for nut

Publications (2)

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CN102319808A CN102319808A (en) 2012-01-18
CN102319808B true CN102319808B (en) 2013-04-24

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102632142B (en) * 2012-03-29 2014-07-23 宁波市鄞州剑均机械科技有限公司 Hot stamping die for latches
CN102688938B (en) * 2012-05-28 2015-02-18 宁波市鄞州剑均机械科技有限公司 Hot stamping mould of screw stud
CN102699213B (en) * 2012-06-21 2014-12-10 宁海县雁苍山电力建设有限公司 Hot stamping mold of copper piece
CN102728723B (en) * 2012-06-21 2015-03-11 宁波市鄞州剑均机械科技有限公司 Nut hot stamping die
CN102773390B (en) * 2012-07-31 2015-01-28 宁波浩渤工贸有限公司 Large outer hexagon bolt blank hot forging and stamping mould
CN102773389B (en) * 2012-07-31 2014-11-26 宁波浩渤工贸有限公司 Hot forging and pressing mold of large inside hexagonal bolt blank
CN102806277B (en) * 2012-08-24 2015-01-21 宁波市鄞州剑均机械科技有限公司 Hot-extrusion die of spring lock head lock body
CN103372609A (en) * 2013-07-31 2013-10-30 南车洛阳机车有限公司 Composite die for processing spring seat parts

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2030514U (en) * 1987-11-09 1989-01-11 长春第一汽车制造厂 Die for cold-extruding hub nut in single process
US5069051A (en) * 1990-09-07 1991-12-03 California Industrial Products, Inc. Method and apparatus for forming threads on a sleeve inner wall
CN201102039Y (en) * 2007-10-15 2008-08-20 中国北车集团北京二七机车厂有限责任公司 Warm extrusion forming mold of nut
CN101817029A (en) * 2010-04-01 2010-09-01 陆颂荫 Cold extrusion die of hexagon nut
CN201625677U (en) * 2010-04-01 2010-11-10 陆颂荫 Cold extruding die for anti-loose hexnut with washer
CN201979015U (en) * 2010-12-02 2011-09-21 贵州航太精密制造有限公司 Nut closing-in device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2030514U (en) * 1987-11-09 1989-01-11 长春第一汽车制造厂 Die for cold-extruding hub nut in single process
US5069051A (en) * 1990-09-07 1991-12-03 California Industrial Products, Inc. Method and apparatus for forming threads on a sleeve inner wall
CN201102039Y (en) * 2007-10-15 2008-08-20 中国北车集团北京二七机车厂有限责任公司 Warm extrusion forming mold of nut
CN101817029A (en) * 2010-04-01 2010-09-01 陆颂荫 Cold extrusion die of hexagon nut
CN201625677U (en) * 2010-04-01 2010-11-10 陆颂荫 Cold extruding die for anti-loose hexnut with washer
CN201979015U (en) * 2010-12-02 2011-09-21 贵州航太精密制造有限公司 Nut closing-in device

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