CN105964772B - A kind of silent bumper intrados towing hook set mounting hole punching die - Google Patents

A kind of silent bumper intrados towing hook set mounting hole punching die Download PDF

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Publication number
CN105964772B
CN105964772B CN201610391963.8A CN201610391963A CN105964772B CN 105964772 B CN105964772 B CN 105964772B CN 201610391963 A CN201610391963 A CN 201610391963A CN 105964772 B CN105964772 B CN 105964772B
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CN
China
Prior art keywords
punch
stripper
mounting hole
pin
bumper
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CN201610391963.8A
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Chinese (zh)
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CN105964772A (en
Inventor
王孟辉
郭春青
刘永昌
王吉彬
张莉
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Guangzhou Lingyun Beijing Great Automotive Components Company Limited
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Ling Yun Industrial Corp Ltd
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Priority to CN201610391963.8A priority Critical patent/CN105964772B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/24Perforating, i.e. punching holes
    • B21D28/34Perforating tools; Die holders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D45/00Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/06Stripping-off devices
    • B21D45/08Stripping-off devices interrelated with motion of tool

Abstract

A kind of silent bumper intrados towing hook set mounting hole punching die, including cope plate, lower template, cavity plate, punch-pin, the affixed die block of cope plate, cavity plate is fixedly connected with die block, the affixed convex mould pad of lower template, the affixed punch retainer of convex mould pad, punch retainer is fixedly connected with punch-pin, lower template is equipped with stripper, stripper and lower template floating connection, stripper is equipped with punch-pin hole, punch-pin passes through punch-pin hole and is slidably matched with punch-pin hole, silent bumper product part is processed to be seated on stripper, punch-pin top is located in the extrados towing hook set mounting hole of silent bumper product part.The present invention is using punch-pin, cavity plate inverted structure, on the one hand punching hole position is accurately positioned as the locating piece of product to be processed in punch-pin, on the other hand it is moved downward with stripper compression in mold closing course and realizes punch-pin punch process, the structure improves production efficiency while ensureing that inside and outside arc towing hook sets of holes concentricity is accurate and stability in batch production is high.

Description

A kind of silent bumper intrados towing hook set mounting hole punching die
Technical field
The present invention relates to a kind of bumper punching dies, are especially used to process silent bumper intrados towing hook set installation The punching die in hole.
Background technology
A kind of structure of silent bumper covers mounting hole as shown in figure 5, the silent bumper 17 of arc is equipped with towing hook.Add The good towing hook set mounting hole of work includes intrados towing hook set mounting hole 17-1 and extrados towing hook set mounting hole 17-2, such as Fig. 6 institutes Show.Intrados towing hook, which covers mounting hole and extrados towing hook set mounting hole, to be processed respectively, and the two has the requirement of concentricity.Fig. 7 institutes It is shown as extrados towing hook set mounting hole is machined and the intrados towing hook set still unprocessed state of mounting hole.Positioned at silent bumper The extrados towing hook set mounting hole of extrados can be completed before pan feeding using online punching on rolling-line, and inner arc Orly Rhampotheca mounting hole is due to too close away from two side, and the rolling process after line punching will appear intrados and side wall fold, technique are wanted It asks and cannot be satisfied;Again because hole position is too far apart from bumper ends after roll-forming, general Sheet Metal Forming Technology is difficult to realize, so mesh The preceding processing that mounting hole is covered for intrados towing hook can only carry out drilling after roll-in or be completed with laser cutting.Bore process The burr of product piece can stay in inside product piece afterwards, be not easy to remove, and the production efficiency to drill is too low;Laser cutting is not only given birth to It is low to produce efficiency, and production cost is too high, while both the above processing technology all has interior outer arc towing hook sets of holes concentricity not The problem of stability.
Invention content
It is an object of the invention to be directed to the drawback of the prior art, inside and outside arc towing hook sets of holes can accurately be ensured by providing one kind The concentricity and high silent bumper intrados towing hook of production efficiency covers mounting hole punching die.
Problem of the present invention is realized with following technical proposals:
A kind of silent bumper intrados towing hook covers mounting hole punching die, including cope plate, lower template, cavity plate and convex Mould, cope plate connect slider of punch, the affixed die block of cope plate, and cavity plate is fixedly connected with die block, lower die The affixed convex mould pad of plate, the affixed punch retainer of convex mould pad, punch retainer are fixedly connected with punch-pin, are set in the lower template There are stripper, stripper and lower template floating connection, stripper to be equipped with punch-pin hole, punch-pin passes through punch-pin hole and slided with punch-pin hole Dynamic cooperation is processed silent bumper product part and is seated on stripper, and punch-pin top is located at the outer of silent bumper product part Cambered surface towing hook covers in mounting hole.
Above-mentioned silent bumper intrados towing hook covers mounting hole punching die, and the punch retainer is equipped with resetting spring Hole, resetting spring are mounted in resetting spring, and the upper and lower ends of resetting spring touch stripper and convex mould pad respectively;Limit Screw passes through lower template, convex mould pad, the lower end of stop screw to be limited by lower template, upper end and the stripper screw thread of stop screw Connection;Punch retainer is further fixed on stripper guide post, and stripper guide post is slidably matched with stripper.
Above-mentioned silent bumper intrados towing hook covers mounting hole punching die, and the cavity plate is equipped with material returned block mounting hole, moves back Material block mounting hole be up big and down small stepped hole, material returned block be located at in material returned block hole, the minor diameter of material returned block and material returned block hole Position is slidably matched, and material returned block top is equipped with boss, and boss is located at the major diameter position in material returned block hole.
Above-mentioned silent bumper intrados towing hook covers mounting hole punching die, and material returned block upper end connects knockout rod, beats Expect that bar passes through slider of punch, knockout rod upper end to connect punching machine cross bar mechanism.
Above-mentioned silent bumper intrados towing hook covers mounting hole punching die, and the lower part of the die block is equipped with product Part limited post, under punching state the matching of product piece limited post be inserted into the groove of silent bumper product part.
Above-mentioned silent bumper intrados towing hook covers mounting hole punching die, and stripper is equipped with two pieces of product piece sides and assists Locating piece, two pieces of product piece side auxiliary positioning blocks touch the left and right sides of product piece respectively.
Above-mentioned silent bumper intrados towing hook covers mounting hole punching die, and stripper lower part is equipped with stroke limit platform.
The present invention is directed to and solves the problems, such as that silent bumper rushes intrados towing hook sets of holes highly-efficient processing and designs.The mold is adopted With punch-pin and cavity plate inverted structure, product piece is placed on lower die stripper, and punch-pin passes through outer arc Orly machined in product piece On the other hand rhampotheca hole is closed in this way, on the one hand punching hole position is accurately positioned as the locating piece of product to be processed in punch-pin in mold It is moved downward with stripper compression during conjunction and realizes punch-pin punch process.A this dual-purpose ingehious design, in ensureing, While outer arc towing hook sets of holes concentricity is accurate and stability in batch production is high, the structure of mould positioning mechanism can be simplified.Punching It after the completion of hole, is opened with mold, stripper is made punch-pin be detached from cavity plate by action of reset spring, completes discharging;Mold continues to open, The cross bar mechanism of punching apparatus acts on knockout rod, realizes that waste material is got.The present invention compared with prior art, improves production Efficiency has saved production cost, improves product quality.
Description of the drawings
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the structural schematic diagram of punching state of the present invention;
Fig. 2 is the structural schematic diagram of discharging state of the present invention;
Fig. 3 is the schematic diagram that product piece is located on stripper;
Fig. 4 is the partial enlarged view at A in Fig. 1;
Fig. 5 is the schematic diagram for the silent bumper product part for completing punching;
Fig. 6 is the cross-section diagram (not in scale) of section B-B in Fig. 5;
Fig. 7 is the silent bumper product part cross-section diagram of undressed intrados towing hook set mounting hole.
Each list of reference numerals is in figure:1, lower template, 2, guide post, 3, convex mould pad, 4, punch retainer, 5, stripper is oriented to Column, 6, resetting spring, 7, stripper, 8, product piece side auxiliary positioning block, 9, guide sleeve, 10, die block, 10-1, stroke limit Position platform, 10-2, product piece limited post, 11, cope plate, 12, slider of punch, 13, punching machine cross bar mechanism, 14, knockout rod, 15, recessed Mould, 15-1, material returned block mounting hole, 16, material returned block, 16-1, boss, 17, silent bumper product part, 17-1, intrados towing hook Covering mounting hole, 17-2, extrados towing hook cover mounting hole, and 18, punch-pin, 19, stop screw, 20, punched scrap.
Specific implementation mode
Referring to Fig. 1, Fig. 2, the present invention includes cope plate 11, lower template 1, cavity plate 15 and punch-pin 18, and cope plate connects punching machine Sliding block 12, cope plate are moved up and down with the movement of slider of punch, are completed punching and are played waste material operation.It is symmetrical arranged and leads in lower template Column 2, cope plate position corresponding with each guide post are equipped with guide sleeve 9, and guide post, guide sleeve are slidably matched, and are that the up and down motion of cope plate rises To guiding role.The punch-pin and cavity plate of the mold use inverted structure, i.e., cavity plate in upper, punch-pin under.Cope plate is affixed recessed Mould fixed plate 10, cavity plate is fixedly connected with die block.1 affixed convex mould pad 3 of lower template, the affixed punch-pin of convex mould pad are fixed Plate 4, punch retainer are fixedly connected with punch-pin 18.Lower template is equipped with stripper 7, and stripper can be in the action of cope plate Lower movement.Punch retainer 4 is equipped with resetting spring, and resetting spring 6 is mounted in resetting spring, above and below resetting spring Both ends touch stripper and convex mould pad respectively.Stop screw 19 passes through lower template, convex mould pad, and the lower end of stop screw is under Template limits, and the upper end of stop screw is threadedly coupled with stripper.Punch retainer is further fixed on stripper guide post 5, discharging Plate guide post is slidably matched with stripper.When processing intrados towing hook set mounting hole, processed silent bumper product part 17 It is placed on stripper, punch-pin top is located in the extrados towing hook set mounting hole of silent bumper product part.In this way, punch-pin one Punching hole position is accurately positioned as the locating piece of product to be processed in aspect, ensures intrados towing hook set mounting hole and extrados towing hook Cover the concentricity of mounting hole;On the other hand it is moved downward with stripper compression in mold closing course and realizes punch-pin punching Journey.
Referring to Fig. 1, Fig. 2, Fig. 3, the lower part of the die block 10 is equipped with product piece limited post 10-2, under punching state The matching of product piece limited post is inserted into the groove of silent bumper product part, to silent bumper product part auxiliary stopper.It unloads Two pieces of product piece side auxiliary positioning blocks 8 are additionally provided on flitch, two pieces of product piece side auxiliary positioning blocks touch a left side for product piece respectively Right side.Stripper lower part is equipped with stroke limit platform 10-1, and when punching, stroke limit platform is pressed to punching when the auxiliary positioning block of side Journey terminates.
Referring to Fig. 1, Fig. 2, Fig. 4, cavity plate 15 is equipped with material returned block mounting hole 15-1, and material returned block mounting hole is up big and down small rank Terraced hole, material returned block 16 are assemblied in material returned block hole, and material returned block and the minor diameter position in material returned block hole are slidably matched, material returned block top Equipped with boss 16-1, boss is located at the major diameter position in material returned block hole, and boss is for playing waste material limit.The connection of material returned block upper end is beaten Expect that bar 14, knockout rod pass through slider of punch, knockout rod upper end to connect punching machine cross bar mechanism 13.
Referring still to Fig. 1, Fig. 2, the course of work of the invention is as follows:Extrados towing hook will have been machined and covered closing for mounting hole Mouth bumper product part 17 is placed on stripper, and extrados towing hook set mounting hole is downward, and silent bumper is inserted on punch-pin top In the extrados towing hook set mounting hole of product piece.Cope plate 11 is moved downward together with die block and cavity plate, and stripper 7 is by recessed Mould fixed plate pressure acts on compression reseting spring 6, and silent bumper product part moves downwardly together with stripper, in motion process It connects belling mould 18 and realizes punching;Material returned block 15 is squeezed into 15 type of cavity plate by punch-pin 18 and waste material 20 during cope plate downlink In chamber, punch process terminates.As cope plate is opened, during cope plate moves upwards, resetting spring reset response is in discharging Plate 7, stripper 7 and product piece 17 move upwardly together, and punch-pin is detached from cavity plate and realizes discharging;Cope plate continues uplink, knockout rod 14 are forced knockout rod 14 to move downward by the effect of punching machine cross bar mechanism, and knockout rod presses material returned block 15, and material returned block moves down will be useless Material 20 gets concave die cavity.So far, a punch work process is completed.

Claims (5)

1. a kind of silent bumper intrados towing hook covers mounting hole punching die, including cope plate(11), lower template(1), cavity plate (15)And punch-pin(18), cope plate connection slider of punch(12), it is characterised in that:The affixed die block of cope plate (10), cavity plate is fixedly connected with die block, the affixed convex mould pad of lower template(3), the affixed punch retainer of convex mould pad (4), punch retainer is fixedly connected with punch-pin, and the lower template is equipped with stripper(7), stripper floats with lower template to be connected It connects, stripper is equipped with punch-pin hole, and punch-pin passes through punch-pin hole and is slidably matched with punch-pin hole, is processed silent bumper product part (17)It is seated on stripper, punch-pin top is located in the extrados towing hook set mounting hole of silent bumper product part;
The die block(10)Lower part be equipped with product piece limited post(10-2), product piece limited post matches under punching state It is inserted into the groove of silent bumper product part;
Stripper is equipped with two pieces of product piece side auxiliary positioning blocks(8), two pieces of product piece side auxiliary positioning blocks touch product respectively The left and right sides of part;
When punching press, the silent bumper product part of extrados towing hook set mounting hole will have been machined(17)It is placed into stripper On, extrados towing hook set mounting hole is downward, and punch-pin top is inserted into the extrados towing hook set mounting hole of silent bumper product part; Cope plate(11)It being moved downward together with die block and cavity plate, silent bumper product part moves downwardly together with stripper, Extruding punch in motion process(18)Realize punching;Material returned block during cope plate downlink(16)By punch-pin(18)And waste material(20) Be squeezed into cavity plate(15)In cavity, punch process terminates.
2. silent bumper intrados towing hook according to claim 1 covers mounting hole punching die, it is characterised in that:It is described Punch retainer is equipped with resetting spring, resetting spring(6)In resetting spring, the upper and lower ends of resetting spring are distinguished Touch stripper and convex mould pad;Stop screw(19)Across lower template, convex mould pad, the lower end of stop screw is limited by lower template Position, the upper end of stop screw is threadedly coupled with stripper;Punch retainer is further fixed on stripper guide post(5), stripper leads It is slidably matched to column and stripper.
3. silent bumper intrados towing hook according to claim 2 covers mounting hole punching die, it is characterised in that:It is described Cavity plate(15)Equipped with material returned block mounting hole(15-1), material returned block mounting hole is up big and down small stepped hole, material returned block(16)It is located at In material returned block mounting hole, material returned block and the minor diameter position of material returned block mounting hole are slidably matched, and material returned block top is equipped with boss (16-1), boss is located at the major diameter position of material returned block mounting hole.
4. silent bumper intrados towing hook according to claim 3 covers mounting hole punching die, it is characterised in that:It is described Material returned block upper end connects knockout rod(14), knockout rod is across slider of punch, knockout rod upper end connection punching machine cross bar mechanism(13).
5. silent bumper intrados towing hook according to claim 4 covers mounting hole punching die, it is characterised in that:Discharging Plate lower part is equipped with stroke limit platform(10-1).
CN201610391963.8A 2016-06-06 2016-06-06 A kind of silent bumper intrados towing hook set mounting hole punching die Active CN105964772B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610391963.8A CN105964772B (en) 2016-06-06 2016-06-06 A kind of silent bumper intrados towing hook set mounting hole punching die

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Application Number Priority Date Filing Date Title
CN201610391963.8A CN105964772B (en) 2016-06-06 2016-06-06 A kind of silent bumper intrados towing hook set mounting hole punching die

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CN105964772B true CN105964772B (en) 2018-09-25

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CN106984706A (en) * 2017-05-27 2017-07-28 桂林福达重工锻造有限公司 A kind of automobile clutch damping disk(-isc) forming lower die
CN107442645B (en) * 2017-08-23 2019-06-07 中国第一汽车股份有限公司 Automobile top cover floating cavity die punching die

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JP2007044727A (en) * 2005-08-09 2007-02-22 Nissan Motor Co Ltd Method and device for producing press formed article
CN202803922U (en) * 2012-07-13 2013-03-20 成都进界科技有限公司 Flip drawing die with pressure plate
CN103567293A (en) * 2012-08-08 2014-02-12 成都科兴密封技术有限公司 Inverse punching and blanking die
CN103551446A (en) * 2013-07-16 2014-02-05 健雄职业技术学院 Edge distance punching die
CN204396593U (en) * 2014-12-13 2015-06-17 重庆天业模具冲压制造有限公司 Elasticity discharging blanking die

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Effective date of registration: 20190530

Address after: 511340 Guangzhou Zengcheng Xintang Town Establishment Road 103 East Guangzhou (Zengcheng) Automobile Industry Base

Patentee after: Guangzhou Lingyun Beijing Great Automotive Components Company Limited

Address before: 072761 Songlindian Town, Zhuozhou City, Baoding City, Hebei Province

Patentee before: LINGYUN INDUSTRIAL CORPORATION LIMITED

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