CN105689534A - Trimming and side punching mold - Google Patents

Trimming and side punching mold Download PDF

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Publication number
CN105689534A
CN105689534A CN201610167905.7A CN201610167905A CN105689534A CN 105689534 A CN105689534 A CN 105689534A CN 201610167905 A CN201610167905 A CN 201610167905A CN 105689534 A CN105689534 A CN 105689534A
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CN
China
Prior art keywords
mould
drift
mold
spring
knife tool
Prior art date
Application number
CN201610167905.7A
Other languages
Chinese (zh)
Inventor
张健
孟祥新
莫云
孙文书
葛德胜
王中伟
叶育芬
Original Assignee
奇瑞汽车股份有限公司
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Filing date
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Application filed by 奇瑞汽车股份有限公司 filed Critical 奇瑞汽车股份有限公司
Priority to CN201610167905.7A priority Critical patent/CN105689534A/en
Publication of CN105689534A publication Critical patent/CN105689534A/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
    • B21D28/02Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/14Dies
    • 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
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/08Dies with different parts for several steps in a process

Abstract

The invention discloses a trimming and side punching mold, and belongs to the field of molds. An upper mold of the mold comprises an upper mold body, a puncher pin, a trimming cutter and an upper mold pressing core. The puncher pin is arranged on the upper mold body in a sliding manner. The trimming cutter and the upper mold pressing core are fixed to the upper mold body. An avoiding hole is formed in the trimming cutter. A puncher pin through hole is formed in the upper mold pressing core. A lower mold comprises a drive block. When the upper mold and the lower mold are compounded, the upper mold pressing core is firstly in contact with a workpiece to be machined; the trimming cutter starts to carry out trimming on the workpiece to be machined along with continuous closing of the upper mold and the lower mold; the puncher pin slides towards one side of the trimming cutter along the drive block and sequentially penetrates the avoiding hole and the puncher pin through hole, and the workpiece to be machined is perforated; therefore, two procedures of trimming and punching are completed only through one set of mold, and the cost of one set of mold and a press machine is omitted; and meanwhile, trimming and punching are completed only through the process of one-time mold compounding, the production period is shortened, and the yield can be increased.

Description

A kind of deburring side piercing die

Technical field

The present invention relates to mould applications, particularly to a kind of deburring side piercing die。

Background technology

Mould realizes the processing of article profile mainly by the physical state changing institute's moulding material, and owing to shaping speed is fast, mould is widely used in the batch production of various industrial products, in the production of such as automobile component。

Such as, in the production process of automobile body sheet metal part, it is necessary to sheet metal component is carried out multi-step forming processes, including deburring, side punching etc., to remove the unnecessary material in sheet metal component edge or at the hole processing needs with sheet metal component。

At present, when automobile body sheet metal part being carried out deburring and side punching, need the manufacturing procedure adopting two molds to be respectively completed deburring and side punching, the price of mould is generally much more expensive, and mould also needs to be correspondingly arranged forcing press, therefore, two molds are adopted to be processed adding very big production cost undoubtedly, adopt two procedures to be processed also extending the process-cycle simultaneously, have impact on the lifting of yield。

Summary of the invention

In order to solve problem existing in prior art, embodiments provide a kind of deburring side piercing die。Described technical scheme is as follows:

Embodiments providing a kind of deburring side piercing die, described mould includes the upper die and lower die being oppositely arranged,

Described upper mould includes mould body, drift, knife tool and upper molding compound core, described drift is slidably disposed on described upper mould body, described knife tool and described upper molding compound core are fixed on described upper mould body, and described drift and described upper molding compound core lay respectively at described knife tool both sides, described knife tool offers and dodges hole, described upper molding compound core offers punch pin through-bores;

Described counterdie includes drive block, and the corresponding described drift of described drive block is arranged, and when described upper mould and described counterdie matched moulds, described drive block is used for driving described drift to slide, until described drift sequentially pass through described in dodge hole and described punch pin through-bores。

Preferably, described upper mould body includes cope match-plate pattern and the boss being arranged on described cope match-plate pattern, described boss is provided with upper guide plate, described drive block is provided with bottom guide, described drift is arranged on sliding shoe, and described sliding shoe can slide along described upper guide plate and described bottom guide。

Preferably, being additionally provided with retracting spring between described sliding shoe and described upper mould body, described retracting spring is parallel to described upper guide plate and arranges。

Further, described retracting spring is nitrogen spring。

Further, described upper mould body also includes spring block, and one end of described retracting spring is fixedly connected on described spring block, and the other end of described retracting spring is fixedly connected on described sliding shoe。

Alternatively, described upper molding compound core is fixed on described cope match-plate pattern by upper mould spring。

Preferably, described upper mould being additionally provided with pipe box, the position of the corresponding described upper mould spring of described pipe box is arranged, and described upper mould spring is axially disposed within described pipe box along described pipe box, and the internal diameter of described pipe box is consistent with the diameter of described upper mould spring。

Preferably, described bottom guide is provided with V-shaped groove, and described V-shaped groove is parallel to the direction that described drift slides。

Preferably, described knife tool is arranged on described boss。

Alternatively, described mould also includes location structure, alignment pin that described location structure includes being arranged on described upper mould and the hole, location that to be arranged on described counterdie suitable with described alignment pin。

The technical scheme that the embodiment of the present invention provides has the benefit that and includes upper mould body by upper mould, drift, knife tool and upper molding compound core, when upper die and lower die matched moulds, upper molding compound core at first with absorption surface to be added, and compress workpiece to be added, along with upper die and lower die continue to close up, knife tool starts to carry out to machined part deburring, simultaneously because counterdie is provided with drive block, drift is along drive block to knife tool one Slideslip, sequentially pass through and dodge hole and punch pin through-bores, it is punched out to machined part, thus only completed deburring and the processing of punching two procedures by one group of mould, save the expense of one group of mould and forcing press, only pass through one time the processing that matched moulds process just completes deburring and punching simultaneously, shorten the production cycle, be conducive to the lifting of yield。

Accompanying drawing explanation

In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, below the accompanying drawing used required during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings。

Fig. 1 is the structural representation of a kind of deburring side piercing die that the embodiment of the present invention provides;

Fig. 2 is the A direction view in Fig. 1;

Fig. 3 is the structural representation of the another kind of deburring side piercing die that the embodiment of the present invention provides;

Fig. 4 is the sliding shoe of mould shown in Fig. 3 schematic diagram when just having contacted with bottom guide;

Fig. 5 is schematic diagram during mould matched moulds shown in Fig. 3。

Detailed description of the invention

For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail。

Embodiments providing a kind of deburring side piercing die, Fig. 1 is the structural representation of a kind of deburring side piercing die that the embodiment of the present invention provides, as it is shown in figure 1, this mould includes the upper die and lower die being oppositely arranged,

Upper mould includes mould body 10, drift 151, knife tool 16 and upper molding compound core 13, drift 151 is slidably disposed on mould body 10, knife tool 16 and upper molding compound core 13 are fixed on mould body 10, and drift 151 and upper molding compound core 13 lay respectively at knife tool 16 both sides, knife tool 16 offers and dodges hole 161, upper molding compound core 13 offers punch pin through-bores 131;

Counterdie includes drive block 22, and the corresponding drift 151 of drive block 22 is arranged, and when upper die and lower die matched moulds, drive block 22 is used for driving drift 151 to slide, until drift 151 sequentially passes through dodges hole 161 and punch pin through-bores 131。

The embodiment of the present invention includes upper mould body by upper mould, drift, knife tool and upper molding compound core, when upper die and lower die matched moulds, upper molding compound core at first with absorption surface to be added, and compress workpiece to be added, along with upper die and lower die continue to close up, knife tool starts to carry out to machined part deburring, simultaneously because counterdie is provided with drive block, drift is along drive block to knife tool one Slideslip, sequentially pass through and dodge hole and punch pin through-bores, it is punched out to machined part, thus only completed deburring and the processing of punching two procedures by one group of mould, save the expense of one group of mould and forcing press, only pass through one time the processing that matched moulds process just completes deburring and punching simultaneously, shorten the production cycle, be conducive to the lifting of yield。

It should be noted that counterdie also includes lower bolster 21, drive block 22 is arranged on lower bolster 21, it is possible to facilitate the placement of counterdie, can play the effect of protection drive block 22 simultaneously。

As it is shown in figure 1, upper molding compound core 13 is fixed on cope match-plate pattern 11 by upper mould spring 14 so that when upper die and lower die matched moulds, upper molding compound core 13 is first pressed on workpiece to be added, it is to avoid in deburring and punch process, workpiece to be added occurs mobile。

It is envisioned that corresponding upper molding compound core 13 is provided with a bracer 23 on lower bolster 21, coordinated by upper molding compound core 13 and a bracer 23, to compress workpiece to be added。

In addition, prop up the position of corresponding punch pin through-bores 131 on bracer 23 and be provided with through hole 231, and bracer 23 inside is hollow structure, after drift 151 completes punching, the waste material formed due to punching falls in a bracer 23 by the through hole 231 on a bracer 23, it is possible to take out waste material from the waste port 232 of bracer 23 side。

As shown in Figure 1, upper mould body 10 includes cope match-plate pattern 11 and the boss 12 being arranged on cope match-plate pattern 11, boss 12 is provided with upper guide plate 121, drive block 22 is provided with bottom guide 221, drift 151 is arranged on sliding shoe 15, sliding shoe 15 can slide along upper guide plate 121 and bottom guide 221, sliding shoe 15 can hang and be arranged on upper guide plate 121, upper guide plate 121 and bottom guide 221 should be obliquely installed, so that when upper die and lower die matched moulds, sliding shoe 15 can along upper guide plate 121 and bottom guide 221 towards knife tool 16 1 Slideslip, thus driving drift 151 to knife tool 16 1 Slideslip, and sequentially pass through and dodge hole 161 and punch pin through-bores 131, it is punched out to machined part。

Preferably, Fig. 2 is the A direction view in Fig. 1, as shown in Figure 2, bottom guide 221 is provided with V-shaped groove 221a, and V-shaped groove 221a is parallel to the direction that drift 151 slides, bottom guide 221 is provided with V-shaped groove 221a, sliding shoe 15 is provided with the surface configuration suitable with V-shaped groove 221a, sliding shoe 15 can be made when sliding along bottom guide 221, avoid sliding shoe 15 to occur rocking in sliding process and cause drift 151 and knife tool 16 or on molding compound core 13 interfere, correspondingly, the surface configuration of the one side that sliding shoe 15 contacts with bottom guide 221 is suitable with the surface configuration of bottom guide 221。

It is envisioned that V-shaped groove can also be arranged on sliding shoe 15, correspondingly, bottom guide 221 arranges the surface configuration suitable with the V-shaped groove on sliding shoe 15。

Preferably, knife tool 16 is arranged on boss 12, is arranged on boss 12 by knife tool 16, is arranged on boss 12 by knife tool 16 and compares is arranged on cope match-plate pattern 11, the length of the shank portion of knife tool 16 can be shortened, thus decreasing the knife tool 16 deformation in deburring process。

Fig. 3 is the another kind of deburring side piercing die that the embodiment of the present invention provides, as shown in Figure 3, the upper mould of this mould is additionally provided with pipe box 141, the position of the corresponding upper mould spring 14 of pipe box 141 is arranged, upper mould spring 14 is axially disposed within pipe box 141 along pipe box 141, the internal diameter of pipe box 141 is consistent with the diameter of upper mould spring 14, pipe box 141 is set, mould spring 14 is compressed in pipe box 141, may insure that the direction that the elastic force of upper molding compound core 13 is moved by mould spring 14 all the time along upper die and lower die, upper molding compound core 13 can compress workpiece 30 to be added。

As shown in Figure 3, it is additionally provided with retracting spring 18 between sliding shoe 15 and upper mould body 10 to connect, retracting spring 18 is parallel to upper guide plate 121 and arranges, when upper die and lower die are in separated position, sliding shoe 15 is in original state, namely sliding shoe 15 is under the elastic force effect of self gravitation and/or retracting spring 18, is suspended on the first end of upper guide plate 121。In matched moulds process; retracting spring 18 can be gradually compressed; in die sinking process; sliding shoe 15 is under the combined effect of retracting spring 18 and gravity; backhaul, to original state, can increase the sliding shoe 15 power in return stroke by arranging retracting spring 18, it is ensured that sliding shoe 15 can smoothly backhaul to original state; and make the backhaul action of sliding shoe 15 faster, shorten the production cycle further。

It should be noted that although the retracting spring 18 of the embodiment shown in Fig. 3 is arranged between sliding shoe 15 and cope match-plate pattern 11, in other embodiments, retracting spring 18 can also be arranged between sliding shoe 15 and lower bolster 21。

Preferably, retracting spring 18 is nitrogen spring, nitrogen spring is a kind of elastic parts being working media with high pressure nitrogen, have that volume is little, elastic force big, stroke length, stable working, manufacture precision, long service life etc. a little, use nitrogen spring to may insure that the stability of mold work, extend die life。

In addition, sliding shoe 15 is additionally provided with limited block 17, when mould is in die opening state, limited block 17 is close on mould body 10, by changing limited block 17 in the length along upper guide plate 121 incline direction, it is possible to regulate the position relative to upper guide plate 121 when sliding shoe 15 is in original state, and then can regulate when sliding shoe 15 just starts to slide, the distance of drift 151 and knife tool 16, to avoid drift 151 and knife tool 16 to interfere。

It should be noted that although the limited block 17 of the embodiment shown in Fig. 3 is arranged on sliding shoe 15, in other embodiments, limited block 17 can also be arranged on mould body 10。

Preferably, when limited block 17 is arranged on sliding shoe 15, one end that limited block 17 contacts with upper mould body 10 is provided with elastomeric pad 171, arranging elastomeric pad 171 can avoid sliding shoe 15 in return stroke, rigid collision is there is with upper mould body 10, and causing loosening between each parts in mould even to damage, this elastomeric pad 171 can be rubber sheet gasket。

Correspondingly, when limited block 17 is arranged on upper mould body 10, elastomeric pad 171 should be set in one end that limited block 17 contacts with sliding shoe 15。

Refer again to Fig. 3, upper mould body 10 also includes a spring block 181, one end of retracting spring 18 is fixedly connected on spring block 181, the other end of retracting spring 18 is fixedly connected on sliding shoe 15, by regulating spring block 181 in the length along upper guide plate 121 incline direction, it is possible to regulating when upper die and lower die fully come together, sliding shoe 15 is relative to the position of upper guide plate 121, and then can regulate when upper die and lower die fully come together, drift 151 inserts the degree of depth of punch pin through-bores 131。

Preferably, limited block 17 and spring block 181 are set simultaneously, by changing limited block 17 and spring block 181 in the length along upper guide plate 121 incline direction, it is possible to regulate sliding shoe 15 slidably distance on upper guide plate 121, and then regulate the stroke of drift 151。

Referring again to Fig. 3, the degree of depth dodging hole 161 is 30mm, owing to workpiece 30 to be added is sheet metal component, and knife tool 16 is further opened with dodge hole 161, in order to ensure the mechanical strength of knife tool 16, the degree of depth dodging hole 161 can be arranged between 25~35mm, in other embodiments, due to workpiece 30 to be added mechanical strength difference, dodge the difference of the size in hole 161, the degree of depth dodging hole 161 also should adjust, so that knife tool 16 has enough mechanical strengths。

Meanwhile, the degree of depth of punch pin through-bores 131 is 25mm, the degree of depth of punch pin through-bores 131 is arranged between 20~30mm, so that upper molding compound core 13 has enough mechanical strengths。

Additionally, when sliding shoe 15 just starts to slide, the distance between drift 151 and knife tool 16 is not less than 10mm, to guarantee in mould use procedure, drift 151 does not produce to interfere with knife tool 16。

Alternatively, angle between the direction of motion of drift 151 and knife tool 16 is 75 °, specifically, lower bolster 21 can be horizontally disposed with, making the angle between bottom guide 221 and lower bolster 21 is 15 °, make knife tool 16 be perpendicular to lower bolster 21 to move simultaneously, drift 151 is arranged along the direction that sliding shoe 15 slides, in other embodiments, the angle between drift 151 and knife tool 16 direction of motion can be changed by the angle between change bottom guide 221 and lower bolster 21, thus changing the direction in machined hole, angle between the direction of motion of drift 151 and knife tool 16 can be arranged between 60 °~80 °。

Further, the stroke of drift 151 is 85mm, , wherein the stroke of drift 151 refers to drift 151 slidable distance along the direction slided, in embodiments of the present invention, it is 30mm owing to dodging the degree of depth in hole 161, the degree of depth of punch pin through-bores 131 is 25mm, when sliding shoe 15 just starts to slide, distance between drift 151 and knife tool 16 is not less than 10mm, and the angle between drift 151 and knife tool 16 direction of motion is 75 °, in order to ensure that drift does not produce to interfere with knife tool 16 and upper molding compound core 13, the stroke of drift 151 should be not less than 85mm, it should be noted that, when angle between drift 151 and knife tool 16 direction of motion is more than 75 °, the stroke of drift 151 can less than 85mm, when angle between drift 151 and knife tool 16 direction of motion is less than 75 °, the stroke of drift 151 have to be larger than 85mm。

Correspondingly, in embodiments of the present invention, the stroke of knife tool 16 is 45mm, so that knife tool 16 can avoid drift 151 smoothly, it is to avoid knife tool 16 and drift 151 produce to interfere。

Additionally, the stroke of upper molding compound core 13 is 55mm, so that upper molding compound core 13 can contact with workpiece 30 to be added and compress workpiece 30 to be added at first, drift 151 can be avoided smoothly, it is to avoid knife tool 16 and drift 151 produce to interfere simultaneously。

As shown in Figure 3, this mould also includes location structure, and location structure includes being arranged on the alignment pin 19 on mould and hole, location 24 that to be arranged on counterdie suitable with alignment pin 19, by arranging location structure, to guarantee that mould can folding smoothly, it is ensured that being normally carried out of production。

Further, on lower bolster 21, the position in hole 24, corresponding location is provided with annular boss, is increased the degree of depth in hole 24, location by annular boss so that upper die and lower die are when die opening state, and alignment pin 19 can also be inserted in hole 24, location。

Below in conjunction with Fig. 3, Fig. 4 and Fig. 5, briefly describe the work process of the mould that the embodiment of the present invention provides:

As shown in Figure 3, upper die and lower die are in state completely separated, now sliding shoe is in original state, Fig. 4 is the sliding shoe of mould shown in Fig. 3 schematic diagram when just having contacted with bottom guide, as shown in Figure 4, upper mould moves to after sliding shoe contacts with bottom guide to counterdie, retracting spring starts to be compressed, sliding shoe starts to slide, upper mould continues to move to upper molding compound core to counterdie and is pressed on workpiece to be added, when knife tool move to absorption surface to be added after, start deburring to machined part, when knife tool cuts off workpiece to be added, complete deburring process, Fig. 5 is schematic diagram during mould matched moulds shown in Fig. 3, as shown in Figure 5, now go up mould to continue to move to counterdie, drift is through dodging hole, enter back into punch pin through-bores, it is punched out to machined part, after upper die and lower die fully come together, complete punch process, upper die and lower die are separately afterwards, drift is from punch pin through-bores and dodges hole and withdraws from, sliding shoe returns gradually to original state, knife tool returns simultaneously, finally go up molding compound core and unclamp workpiece to be added, terminate whole course of processing。

The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention。

Claims (10)

1. a deburring side piercing die, it is characterised in that described mould includes the upper die and lower die being oppositely arranged,
Described upper mould includes mould body (10), drift (151), knife tool (16) and upper molding compound core (13), described drift (151) is slidably disposed on described upper mould body (10), described knife tool (16) and described upper molding compound core (13) are fixed on described upper mould body (10), and described drift (151) and described upper molding compound core (13) lay respectively at described knife tool (16) both sides, described knife tool (16) offers and dodges hole (161), described upper molding compound core (13) offers punch pin through-bores (131);
Described counterdie includes drive block (22), the corresponding described drift (151) of described drive block (22) is arranged, when described upper mould and described counterdie matched moulds, described drive block (22) is used for driving described drift (151) to slide, until described drift (151) sequentially pass through described in dodge hole (161) and described punch pin through-bores (131)。
2. mould according to claim 1, it is characterized in that, described upper mould body (10) includes cope match-plate pattern (11) and the boss (12) being arranged on described cope match-plate pattern (11), described boss (12) is provided with upper guide plate (121), described drive block (22) is provided with bottom guide (221), described drift (151) is arranged on sliding shoe (15), and described sliding shoe (15) can slide along described upper guide plate (121) and described bottom guide (221)。
3. mould according to claim 2, it is characterized in that, being additionally provided with retracting spring (18) between described sliding shoe (15) and described upper mould body (10), described retracting spring (18) is parallel to described upper guide plate (121) and arranges。
4. mould according to claim 3, it is characterised in that described retracting spring (18) is nitrogen spring。
5. mould according to claim 3, it is characterized in that, described upper mould body (10) also includes spring block (181), one end of described retracting spring (18) is fixedly connected on described spring block (181), and the other end of described retracting spring (18) is fixedly connected on described sliding shoe (15)。
6. mould according to claim 3, it is characterised in that described upper molding compound core (13) is fixed on described cope match-plate pattern (11) by upper mould spring (14)。
7. mould according to claim 6, it is characterized in that, described upper mould is additionally provided with pipe box (141), the position of the corresponding described upper mould spring (14) of described pipe box (141) is arranged, described upper mould spring (14) is axially disposed within described pipe box (141) along described pipe box (141), and the internal diameter of described pipe box (141) is consistent with the diameter of described upper mould spring (14)。
8. the mould according to any one of claim 2~7, it is characterized in that, described bottom guide (221) is provided with V-shaped groove (221a), and described V-shaped groove (221a) is parallel to the direction that described drift (151) slides。
9. the mould according to any one of claim 2~7, it is characterised in that described knife tool (16) is arranged on described boss (12)。
10. the mould according to any one of claim 1~7, it is characterized in that, described mould also includes location structure, alignment pin (19) that described location structure includes being arranged on described upper mould and the hole, location (24) that to be arranged on described counterdie suitable with described alignment pin (19)。
CN201610167905.7A 2016-03-21 2016-03-21 Trimming and side punching mold CN105689534A (en)

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CN106040825A (en) * 2016-07-26 2016-10-26 滁州达世汽车配件有限公司 Automobile side trimming and punching die
CN106040845A (en) * 2016-07-26 2016-10-26 滁州达世汽车配件有限公司 Automobile side punching trimming and hole flanging die
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Publication number Priority date Publication date Assignee Title
CN106040825A (en) * 2016-07-26 2016-10-26 滁州达世汽车配件有限公司 Automobile side trimming and punching die
CN106040845A (en) * 2016-07-26 2016-10-26 滁州达世汽车配件有限公司 Automobile side punching trimming and hole flanging die
CN106140960A (en) * 2016-07-26 2016-11-23 滁州达世汽车配件有限公司 Automobile trimming-punching die with material pressing core
CN106040845B (en) * 2016-07-26 2018-01-02 滁州达世汽车配件有限公司 Automobile side punching deburring hole flanging mold
CN106391845A (en) * 2016-11-25 2017-02-15 安徽江淮汽车集团股份有限公司 Side punching die
CN106391845B (en) * 2016-11-25 2018-03-20 安徽江淮汽车集团股份有限公司 Side piercing die
CN107876625A (en) * 2017-11-30 2018-04-06 上汽通用五菱汽车股份有限公司 A kind of combination hole punched device of edge-cutting and hole-punching side punching

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