CN204052602U - A kind of mould producing semi-hollow self-pierce riveting rivet - Google Patents

A kind of mould producing semi-hollow self-pierce riveting rivet Download PDF

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Publication number
CN204052602U
CN204052602U CN201420435389.8U CN201420435389U CN204052602U CN 204052602 U CN204052602 U CN 204052602U CN 201420435389 U CN201420435389 U CN 201420435389U CN 204052602 U CN204052602 U CN 204052602U
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CN
China
Prior art keywords
groove
hole
counterdie
patrix
foundation
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420435389.8U
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Chinese (zh)
Inventor
何晓聪
张越
曾凯
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Kunming University of Science and Technology
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Kunming University of Science and Technology
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Publication date
Application filed by Kunming University of Science and Technology filed Critical Kunming University of Science and Technology
Priority to CN201420435389.8U priority Critical patent/CN204052602U/en
Application granted granted Critical
Publication of CN204052602U publication Critical patent/CN204052602U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00Making machine elements
    • B21K1/58Making machine elements rivets
    • B21K1/60Making machine elements rivets hollow or semi-hollow rivets

Abstract

The utility model discloses a kind of mould producing semi-hollow self-pierce riveting rivet, comprise counterdie, patrix and foundation, in described counterdie, be provided with A groove, and have through hole in A groove floor; Described patrix top is provided with B groove, is connected with through hole below B groove, and patrix nested arrangements is arranged in the B groove of counterdie; Described foundation is rod-like structure, and top is provided with perforation thimble, and carries out the chamfered section of chamfering to blank, and this foundation is movably arranged in the through hole of upper die and lower die, and can be free to slide in through hole.The mould of production semi-hollow self-pierce riveting rivet of the present utility model, adopts the design of near-net-shape technological thought, can realize a punching press straight forming, have without the need to secondary operations, do not produce waste material, the feature that efficiency is high.Meanwhile, the design of push rod makes the shaping rear demoulding convenient, shortens man-hour, is conducive to producing in enormous quantities.

Description

A kind of mould producing semi-hollow self-pierce riveting rivet
Technical field
The utility model relates to Design of Dies technical field, is specifically related to a kind of mould producing semi-hollow self-pierce riveting rivet.
Background technology
Self-piercing riveting is a kind of cold interconnection technique for connecting two or more sheet material, after special rivet (as shown in Figure 1) penetrates top layer sheet material, under the effect of riveting mould, the hollow structure of rivet bar thrusts sheet material and forms firmly riveting point at sheet material intramedullary expansion.
Rivet processing technology conventional at present has cold pier and speed car processing, and is carrying out suitable heat treatment afterwards.Cold pier is processed by the impact of drift, metal wire rod is occurred in mould shape and size that plastic deformation has reached expection.The company of existing cold-heading processing self-pierce riveting rivet is equipped with SPC(self-pierce riveting) special equipment such as the multi-mould forging that controls, dispatches from the factory after repeatedly forging molding.This processing method production efficiency is high, but easily causes dehiscence in the head during the larger product of production deformation, and cannot process special shape on rivet, as groove etc.Utilize existing mold to manufacture rivet, due to the restriction of mold shape, cause needing secondary operations, excess stock is removed, cause the wasting of resources and production efficiency to reduce.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of mould producing semi-hollow self-pierce riveting rivet, and one-shot forming during this mould production rivet, without the need to secondary operations, and whole production process no waste mine produces.
The technical solution of the utility model is: a kind of mould producing semi-hollow self-pierce riveting rivet, comprises counterdie, patrix and foundation, is provided with A groove in described counterdie, and has through hole in A groove floor; Described patrix top is provided with B groove, is connected with through hole below B groove, and patrix nested arrangements is arranged in the B groove of counterdie; Described foundation is rod-like structure, and top is provided with perforation thimble, and carries out the chamfered section of chamfering to blank, and this foundation is movably arranged in the through hole of upper die and lower die, and can be free to slide in through hole.
In technique scheme, for making patrix energy self-return after punching press, be provided with elastomer bottom patrix and between counterdie top, described elastomer two ends are connected with upper die and lower die respectively.Elastomer can be made by the elastomeric material of punching press elastic force needed for high polymer elastic rubber etc. meets, and considers, be preferably spring from economic dispatch angle; Meanwhile, after obtaining finished product for making punching press, the demoulding is convenient, and the below of described counterdie is supporting is provided with demoulding push rod, and this push rod and foundation are positioned on same axis.
In technique scheme, for making push rod can accurately locate when carrying out the demoulding, and ensureing that push rod does not occur flexural deformation in permanent work, bottom described counterdie, being connected with pedestal, this pedestal is provided with the through hole that push rod coordinates, and this through hole center and push rod are on the same axis.
The course of work of the present utility model is: blank puts into patrix through hole, and drift is descending, and promotion patrix and blank move downward, and spring by compression simultaneously.Along with drift is constantly descending, blank is extruded, and with mold shape flowing change.Punching stroke is the distance bottom patrix and between A groove floor, and when contacting with A groove floor bottom patrix, drift stops descending, and keeps pressure to pause a period of time simultaneously;
After blank forming, drift rises, and promote patrix while spring reset up, last push rod is up, by type rivet ejection die.
The beneficial effects of the utility model are: adopt this kind of near-net-shape technological thought design to produce the mould of semi-hollow self-pierce riveting rivet, a punching press straight forming can be realized, without the need to secondary operations, and whole process no waste mine produces, thus improves operating efficiency and resource utilization; Meanwhile, the design of push rod makes the shaping rear demoulding convenient, shortens man-hour, is conducive to producing in enormous quantities.
Accompanying drawing explanation
Fig. 1 is the structural representation of semi-hollow self-pierce riveting rivet;
Fig. 2 is clamping structure schematic diagram before Mould Machining of the present utility model;
Fig. 3 is the structural representation in mold pressing process of the present utility model;
Fig. 4 is mold work view of the present utility model after drift backhaul;
Fig. 5 is the structural representation of mold releasability process of the present utility model;
Fig. 6 is counterdie three-dimensional structure diagram of the present utility model;
Fig. 7 is patrix three-dimensional structure diagram of the present utility model;
Fig. 8 is construction of sill pillar schematic diagram of the present utility model.
In figure, 1-drift, 2-patrix, 3-counterdie, 4-spring, 5-foundation, 6-pedestal, 7-push rod, 8-blank, 9-through hole, 10-semi-hollow self-pierce riveting rivet, 21-B groove, 31-A groove, 51-thimble, 52-chamfered section.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1: as shown in Fig. 1 ~ 8, a kind of mould producing semi-hollow self-pierce riveting rivet, comprises counterdie 3, patrix 2 and foundation 5, is provided with A groove 31 in described counterdie 3, and has through hole 9 in A groove 31 bottom surface;
Described patrix 2 top is provided with below B groove 21, B groove 21 and is connected with through hole 9, and patrix 2 nested arrangements is arranged in the B groove 21 of counterdie 3;
Described foundation 5 is rod-like structure, and top is provided with perforation thimble 51, and carries out the chamfered section 52 of chamfering to blank 8, and this foundation 5 is movably arranged in the through hole 9 of patrix 2 and counterdie 3, and can be free to slide in through hole 9;
For making patrix energy self-return after punching press, be provided with spring 4 bottom patrix 2 and between counterdie 3 top, described spring 4 two ends are fixedly connected with counterdie 3 with patrix 2 respectively;
Meanwhile, after obtaining finished product for making punching press, the demoulding is convenient, and the below of described counterdie 3 is supporting is provided with demoulding push rod 7, and this push rod 7 is positioned on same axis with foundation 5.
Further, can accurately locate when carrying out the demoulding for making push rod 7, and ensure that push rod 7 does not occur flexural deformation in permanent work, pedestal 6 is connected with bottom described counterdie 3, this pedestal 6 is provided with the through hole 9 that push rod 7 coordinates, and this through hole 9 center and push rod 7 are on the same axis.
The course of work of the present embodiment is: blank 8 is put into patrix through hole 9, and drift 1 is descending, and promotion patrix 2 and blank 8 move downward, and spring 4 by compression simultaneously.Along with drift 1 is constantly descending, blank 8 is extruded, and with mold shape flowing change.When contacting with A groove 31 bottom surface bottom patrix 2, drift 1 stops descending, and keeps pressure to pause a period of time simultaneously; After blank 8 is shaping, drift 1 rises, and promote patrix 2 while spring 4 resets up, last push rod 7 is up, by type semi-hollow self-pierce riveting rivet 10 ejection die.
The mould of production semi-hollow self-pierce riveting rivet of the present utility model, a punching press straight forming, has without the need to secondary operations, does not produce waste material, and the demoulding is fast, the feature that efficiency is high.
By reference to the accompanying drawings detailed description of the invention of the present utility model is explained in detail above, but the utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.

Claims (4)

1. produce a mould for semi-hollow self-pierce riveting rivet, it is characterized in that: comprise counterdie, patrix and foundation, in described counterdie, be provided with A groove, and have through hole in A groove floor; Described patrix top is provided with B groove, is connected with through hole below B groove, and patrix nested arrangements is arranged in the B groove of counterdie; Described foundation is rod-like structure, and top is provided with perforation thimble, and carries out the chamfered section of chamfering to blank, and this foundation is movably arranged in the through hole of upper die and lower die, and can be free to slide in through hole.
2. the mould of production semi-hollow self-pierce riveting rivet according to claim 1, it is characterized in that: be provided with elastomer bottom patrix and between counterdie top, described elastomer two ends are connected with upper die and lower die respectively; Meanwhile, be also supportingly provided with demoulding push rod, this push rod is installed on below counterdie, and is positioned on same axis with foundation.
3. the mould of production semi-hollow self-pierce riveting rivet according to claim 2, is characterized in that: described elastomer is spring.
4. the mould of production semi-hollow self-pierce riveting rivet according to claim 2, is characterized in that: be connected with pedestal bottom described counterdie, and this pedestal is provided with the through hole that push rod coordinates, and this through hole center and push rod are on the same axis.
CN201420435389.8U 2014-08-04 2014-08-04 A kind of mould producing semi-hollow self-pierce riveting rivet Expired - Fee Related CN204052602U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420435389.8U CN204052602U (en) 2014-08-04 2014-08-04 A kind of mould producing semi-hollow self-pierce riveting rivet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420435389.8U CN204052602U (en) 2014-08-04 2014-08-04 A kind of mould producing semi-hollow self-pierce riveting rivet

Publications (1)

Publication Number Publication Date
CN204052602U true CN204052602U (en) 2014-12-31

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104741501A (en) * 2015-03-30 2015-07-01 上海应用技术学院 Draw-in type semi-hollow self-piercing riveting rivet device
CN107052158A (en) * 2017-04-19 2017-08-18 苏州汇程精密模具有限公司 A kind of integrally formed diel of interior external splines
CN112276538A (en) * 2019-07-22 2021-01-29 广州汽车集团股份有限公司 Punching and riveting bolt mounting device and mounting method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104741501A (en) * 2015-03-30 2015-07-01 上海应用技术学院 Draw-in type semi-hollow self-piercing riveting rivet device
CN107052158A (en) * 2017-04-19 2017-08-18 苏州汇程精密模具有限公司 A kind of integrally formed diel of interior external splines
CN112276538A (en) * 2019-07-22 2021-01-29 广州汽车集团股份有限公司 Punching and riveting bolt mounting device and mounting method

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141231

Termination date: 20170804

CF01 Termination of patent right due to non-payment of annual fee