CN108067551A - punching trimming die - Google Patents

punching trimming die Download PDF

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Publication number
CN108067551A
CN108067551A CN201810147129.3A CN201810147129A CN108067551A CN 108067551 A CN108067551 A CN 108067551A CN 201810147129 A CN201810147129 A CN 201810147129A CN 108067551 A CN108067551 A CN 108067551A
Authority
CN
China
Prior art keywords
punching
punch
loose piece
switching
fixed
Prior art date
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.)
Pending
Application number
CN201810147129.3A
Other languages
Chinese (zh)
Inventor
何成
周晶晶
杜长胜
佘威
崔礼春
汪军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Jianghuai Automobile Group Corp
Original Assignee
Anhui Jianghuai Automobile Group Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Jianghuai Automobile Group Corp filed Critical Anhui Jianghuai Automobile Group Corp
Priority to CN201810147129.3A priority Critical patent/CN108067551A/en
Publication of CN108067551A publication Critical patent/CN108067551A/en
Pending legal-status Critical Current

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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
    • B21D37/10Die sets; Pillar guides

Abstract

The invention discloses a kind of punching Trimming Dies, including upper die component and lower mold assemblies, upper die component includes upper mold seat and the whole material pressing core being fixed on upper mold seat, and lower mold assemblies include die holder and the deburring cutter block being fixed on die holder, further include the punch mechanism on upper mold seat;Punch mechanism includes piercing punch, hole-punching and switching mechanism and switching retaining mechanism;Piercing punch is mounted on by telescoping mechanism on upper mold seat;Hole-punching and switching mechanism includes driving device and work loose piece, and driving device is mounted on upper mold seat, and drives work loose piece horizontal movement, when the loose piece that works is contacted with piercing punch, the power of upper die component downlink is passed to piercing punch, realizes punching;Switching retaining mechanism is fixed on upper die component, is locked to the position for the loose piece that works.The present invention is equipped with a switching mechanism, in use, can switch into row position, ensures that unilateral part normally produces, to realize that the common mode of left and right part produces.

Description

Punching Trimming Die
Technical field
The present invention relates to a kind of stamping dies, and the punching Trimming Die of the left and right parts using one die production particularly can be achieved.
Background technology
At present, during the manufacturing of automobile, since handling position is different, left and right car door usually passes through two cover dies Tool is molded (including drawing die, trimming-punching die), it is impossible to realize that common mode produces.But use two molds, not only cost It is higher, more molds uses and storage space are also taken up, is unfavorable for production management.
The content of the invention
The object of the present invention is to provide a kind of punching Trimming Dies, and to solve deficiency of the prior art, it is equipped with all Converting mechanism in use, can switch into row position, ensure that unilateral part normally produces, to realize that the common mode of left and right part is given birth to Production.
To achieve the above object, the present invention provides following technical solutions:
A kind of punching Trimming Die, including upper die component and lower mold assemblies, the upper die component includes upper mold seat and fixation Whole material pressing core on the upper mold seat, the lower mold assemblies include die holder and the edge iron being fixed on the die holder Block further includes the punch mechanism on the upper mold seat;
The punch mechanism includes piercing punch, hole-punching and switching mechanism and switching retaining mechanism;
The piercing punch is mounted on by telescoping mechanism on the upper mold seat;
The hole-punching and switching mechanism includes driving device and work loose piece, and the driving device is mounted on the upper mold seat On, and the work loose piece horizontal movement is driven, when the work loose piece is contacted with the piercing punch, by the upper module The power of part downlink passes to the piercing punch, realizes punching;
The switching retaining mechanism is mounted on the upper mold seat, is locked to the position of the work loose piece.
Foregoing punching Trimming Die, it is preferable that the piercing punch includes two, fixed position respectively according to it is left, The position of right side car door up knob is set;The hole-punching and switching mechanism and the switching retaining mechanism include two sets, point It is not matched with two piercing punches.
Foregoing punching Trimming Die, it is preferable that the hole-punching and switching mechanism further includes movable sliding panel, and the activity is sliding Movable plate is fixed on the whole material pressing core, and positioned at the both sides of the work loose piece, and be slidably matched with the work loose piece.
Foregoing punching Trimming Die, it is preferable that the hole-punching and switching mechanism further includes loose piece upper padding plate, on the loose piece Backing plate is fixed on the top surface of the work loose piece.
Foregoing punching Trimming Die, it is preferable that the hole-punching and switching mechanism further includes loose piece lower bolster, under the loose piece Backing plate is fixed on the bottom surface of the work loose piece;
The piercing punch is equipped with contact boss.
Foregoing punching Trimming Die, it is preferable that the driving device is cylinder, and passes through cylinder feed shaft and the work Make loose piece connection.
Foregoing punching Trimming Die, it is preferable that the switching retaining mechanism includes installing plate, lock shaft and lock pad Piece;
The installing plate is fixed on the upper mold seat;
One end of the lock shaft pass through the installing plate after be threadedly coupled with the work loose piece, the lock shaft it is another One end is arranged circumferentially multiple grooves;
The lock washer is fixed in the groove, and the lock shaft is fixed.
Foregoing punching Trimming Die, it is preferable that the punch mechanism further includes punching holding pad, the punching holding pad It is fixed on the whole material pressing core, and below the piercing punch.
Foregoing punching Trimming Die, it is preferable that the telescoping mechanism is nitrogen gas spring, and the upper end is mounted on the upper mold On seat, lower end is mounted on the piercing punch.
Foregoing punching Trimming Die, it is preferable that the punch mechanism further includes punch-pin safety screw, the punch-pin safety Screw upper end is fixed on the upper mold seat, and lower slide is mounted on the piercing punch, and the punch-pin safety screw Nut is stuck in always in the piercing punch.
Compared with prior art, punching Trimming Die provided by the invention is by setting hole-punching and switching mechanism and switching to lock Mechanism so that punching position can with unrestricted choice, and by set switch retaining mechanism, ensure that switching after position it is accurate Property so that piercing punch can be selectively punched out, you can is realized the unilateral punching of left and right part, is realized left and right part Common mode produces, and greatly reduces the manufacture cost of mold;And the hole-punching and switching mechanism is simple in structure, easy to operate, Working position Accurately.
Description of the drawings
Fig. 1 is the positive axis side structure schematic diagram of punching Trimming Die provided by the invention;
Fig. 2 is the inversion axis side structure schematic diagram of punching Trimming Die provided by the invention;
Fig. 3 is the axis side structure schematic diagram of punching Trimming Die provided by the invention (without upper mold seat);
Fig. 4 is the overlooking the structure diagram of punching Trimming Die provided by the invention (without upper mold seat);
Fig. 5 is the structure diagram of punch mechanism;
Fig. 6 is the partial enlargement structural representation (one) of punch mechanism;
Fig. 7 is the partial enlargement structural representation (two) of punch mechanism;
Fig. 8 is the comparison structure schematic diagram of punch mechanism two states;
Fig. 9 is the structure diagram of two piercing punches;
Figure 10 is the structure diagram of hole-punching and switching mechanism and switching retaining mechanism;
Figure 11 is the structure diagram of two punching holding pads;
Figure 12 is schematic cross-sectional view of the punching Trimming Die provided by the invention in telescoping mechanism position;
Figure 13 is schematic cross-sectional view of the punching Trimming Die provided by the invention in driving device position;
Figure 14 is schematic cross-sectional view of the punching Trimming Die provided by the invention in switching retaining mechanism position;
Figure 15 is the structure diagram of whole material pressing core.
Reference sign:
101- upper mold seats, 102- entirety material pressing cores, 1021- material pressing core gas springs, 1022- sides pin, 103- piercing punches, 1031- contacts boss, 104- driving devices, 1041- cylinder feed shafts, 105- work loose pieces, 1051- slotted holes, 106- activities Sliding panel, 107- loose piece upper padding plates, 108- loose piece lower bolsters, 109- installing plates, 110- lock shafts, 1101- grooves, 111- lockings Gasket, 112- punching holding pads, 1121- grooves, 113- punch-pin safety screws, 114- telescoping mechanisms, 201- die holders, 202- are repaiied Side cutter block.
Specific embodiment
The embodiments described below with reference to the accompanying drawings are exemplary, is only used for explaining the present invention, and cannot be construed to Limitation of the present invention.
The embodiment of the present invention:As shown in Figs. 1-2, a kind of punching Trimming Die, including upper die component and lower mold assemblies.Such as Shown in Fig. 1-6, the upper die component includes upper mold seat 101 and the whole material pressing core 102 being fixed on the upper mold seat 101, tool Body, the entirety material pressing core 102 are mounted on by material pressing core gas spring 1021 on upper mold seat 101, and pass through side pin 1022 into Row is fixed.The lower mold assemblies include die holder 201 and the deburring cutter block 202 being fixed on the die holder 201, further include peace Punch mechanism on the upper mold seat 101.The punch mechanism includes piercing punch 103, hole-punching and switching mechanism and switching Retaining mechanism.The piercing punch 103 is mounted on by telescoping mechanism 114 on the upper mold seat 101.The hole-punching and switching mechanism Including driving device 104 and work loose piece 105, the driving device 104 is mounted on the upper mold seat 101, and described in driving Work 105 horizontal movement of loose piece, will be under the upper die component when the work loose piece 105 is contacted with the piercing punch 103 Capable power passes to the piercing punch 103, realizes punching.The switching retaining mechanism is mounted on the upper mold seat, to institute The position for stating work loose piece 105 is locked.
When being produced using the mold, to process left member, then start driving device 104, driving work loose piece 105 moves It is dynamic, until above the position of opening of left member, and locked the position for the loose piece 105 that works using switching retaining mechanism;Then upper and lower mould It being closed, upper die component is run downwards, and whole material pressing core 102 pushes down plate, works at the same time loose piece 105 and is contacted with piercing punch 103, The active force of upper die component is passed into piercing punch 103, piercing punch 103 moves downward, and realizes left side punching.Then on Lower die is opened, and upper die component is run up, 103 return of piercing punch under the action of telescoping mechanism 114.To process right member, Work loose piece 105 need to only be driven to be moved to above the position of opening of right member, other modes according to processing left member.The present invention The punching Trimming Die of offer is by setting hole-punching and switching mechanism and switching retaining mechanism so that punching position can be selected freely It selects, and switches retaining mechanism by setting, ensure that the accuracy of position after switching so that piercing punch 103 can have selection Property be punched out, you can realize the unilateral punching of left and right part, realize left and right part common mode production, greatly reduce mold Manufacture cost;And the hole-punching and switching mechanism is simple in structure, easy to operate, Working position is accurate.
It is preferably carried out in one kind in mode, as shown in fig. 7, the piercing punch 103 includes two, fixed position point It is not set according to the position of left and right side car door up knob;The hole-punching and switching mechanism and the switching retaining mechanism wrap Two sets are included, is matched respectively with two piercing punches 103.Two sets of punch mechanisms are set, then piercing punch 103 can be with It is relatively fixed in the horizontal direction, only need to move its corresponding hole-punching and switching mechanism, such as when producing left member, need to only open The corresponding hole-punching and switching mechanism of dynamic left member, driving work loose piece 105 is moved to above the position of opening of left member, while also needs to ensure The corresponding hole-punching and switching mechanism of right member is not moved to above the position of opening of right member.And if only setting a piercing punch 103 If, then the piercing punch 103 needs to move horizontally, and so also to increase the driving dress of the horizontal movement of piercing punch 103 It puts, mold can be made more complicated, since the inner space of mold is limited, be not easy to the arrangement of structure.
Wherein, as seen in figures 3-6, the hole-punching and switching mechanism further includes movable sliding panel 106, the activity sliding panel 106 are fixed on whole material pressing core 102, and positioned at the both sides of the work loose piece 105, and slided with the work loose piece 105 Cooperation., can be free to slide along movable sliding panel 106 when the loose piece 105 that works moves, movable sliding panel 106 is from side pair Work loose piece 105 is supported, and ensure that the stationarity that work loose piece 105 moves.
In addition, as seen in figures 3-6, the hole-punching and switching mechanism further includes loose piece upper padding plate 107, the loose piece upper padding plate 107 are fixed on the top surface of the work loose piece 105.During the work time, when upper die component comes downwards to after bottom dead center, padded on loose piece Plate 107 is contacted with upper die component, plays the role of /V.
Furthermore as shown in Fig. 8-9 and Figure 11, the hole-punching and switching mechanism further includes loose piece lower bolster 108, under the loose piece Backing plate 108 is fixed on the bottom surface of the work loose piece 105;The piercing punch 103 is equipped with contact boss 1031.In clamping process In, loose piece lower bolster 108 realizes the transmission of power, ensures the work of piercing punch 103, realize punching with contacting boss 1031; When carrying out unilateral part processing, correspondingly, the loose piece lower bolster 108 of opposite side cannot be contacted with contacting boss 1031, it is impossible to be realized The transmission of power, it is impossible to be punched out.The place drawn a circle at two in Fig. 8 is that can realize punching and can not achieve two kinds of shapes of punching Under state, loose piece lower bolster 108 is with contacting the contact of boss 1031 and discontiguous schematic diagram.
In a kind of specifically embodiment, the driving device 104 is cylinder, and passes through cylinder feed shaft 1041 and institute Work loose piece 105 is stated to connect.Specifically, 1041 one end of cylinder feed shaft is fixed on cylinder, and the other end is connected to by groove It works on loose piece 105, is realized by cylinder moving and work loose piece 105 is driven to move.Certainly, driving device 104 can also be it Its power set, such as hydraulic cylinder, micro-machine band carry-over bar or belt etc..
In another specifically embodiment, as shown in Fig. 6-7 and Figure 10, Figure 14, the switching retaining mechanism includes Installing plate 109, lock shaft 110 and lock washer 111;The installing plate 109 is fixed on the upper mold seat 101;The locking One end of axis 110 is threadedly coupled after passing through the installing plate 109 with the work loose piece 105, the other end of the lock shaft 110 It is arranged circumferentially multiple grooves 1101;The lock washer 111 is fixed in the groove 1101, and the lock shaft 110 is carried out It is fixed.By the way that lock shaft 110 is connected with work loose piece 105, the i.e. lockable work loose piece 105 of lock shaft 110 need to be only fixed Position;And such as groove 1101 is blocked using lock washer 111, then lock washer 111 is stuck in the opposite side of installing plate 109, lock shaft 110 cannot move forward again, realize the locking of position;And lock shaft 110 is threadedly coupled with work loose piece 105, installing and dismounting It is convenient, it is easy to the assembling of the switching retaining mechanism.
It is preferably carried out in another kind in mode, as illustrated in figures 11 and 13, the punch mechanism further includes punching binder Plate 112, the punching holding pad 112 are fixed on the whole material pressing core 102, and below the piercing punch 103. Specifically, the punching holding pad 112 is equipped with the groove 1121 coordinated with the bottom of the piercing punch 103.It is rushed by setting Pore pressure flitch 112, plays the role of binder in punch process, ensures the stability of punching.
In another specifically embodiment, as shown in Figure 12 and Figure 13, the telescoping mechanism 114 is nitrogen gas spring, The upper end is mounted on the upper mold seat 101, and lower end is mounted on the piercing punch 103.Pass through nitrogen in use Gas spring realizes the punching of piercing punch 103 and the backhaul of punch-pin position.Certain telescoping mechanism 114 can also other be had The mechanism of Telescopic, such as other gas springs, air bag, helical spring.
In addition, the punch mechanism further includes punch-pin safety screw 113,113 upper end of punch-pin safety screw is fixed on On the upper mold seat 101, lower slide is mounted on the piercing punch 103, and the nut of the punch-pin safety screw 113 begins It is stuck in eventually in the piercing punch 103.Punch-pin safety screw 113 is set, ensures work and the safety of piercing punch 103, it can be with Prevent piercing punch 103 from punching setting occurred and breaks.
Specifically, opened up on the work loose piece 105 and avoid the telescoping mechanism 114 and the punch-pin safety screw 113 slotted hole 1051.Since work loose piece 105 is between piercing punch 103 and upper mold seat 101, so telescoping mechanism 114 Work loose piece 105 is passed through with punch-pin safety screw 113, and the loose piece 105 that works is movable, in order to avoid to the loose piece that works 105 cause to hinder, and are opened up on the work loose piece 105 and avoid the telescoping mechanism 114 and the punch-pin safety screw 113 Slotted hole 1051.
In the present embodiment, the structure of whole material pressing core 102 is as shown in figure 15, whole to press because to realize that left and right part shares The hole characteristic that the Position Design of hole-punching and switching mechanism is shared into two switching mechanisms is corresponded on material core 102;Since both sides will repair Side, the upper and lower sides in Figure 15 have been designed to extended structure, ensure that left and right part can realize deburring.
The structure, feature and effect of the present invention, more than institute are described in detail based on the embodiments shown in the drawings Only presently preferred embodiments of the present invention is stated, but the present invention is not to limit practical range shown in drawing, it is every according to structure of the invention Want made change or be revised as the equivalent embodiment of equivalent variations, when not going beyond the spirit of the description and the drawings, It should all be within the scope of the present invention.

Claims (10)

1. a kind of punching Trimming Die, including upper die component and lower mold assemblies, the upper die component is including upper mold seat (101) and admittedly The whole material pressing core (102) being scheduled on the upper mold seat (101), the lower mold assemblies include die holder (201) and are fixed on institute State the deburring cutter block (202) on die holder (201), it is characterised in that:Further include the punching on the upper mold seat (101) Mechanism;
The punch mechanism includes piercing punch (103), hole-punching and switching mechanism and switching retaining mechanism;
The piercing punch (103) is mounted on by telescoping mechanism (114) on the upper mold seat (101);
The hole-punching and switching mechanism includes driving device (104) and work loose piece (105), and the driving device (104) is mounted on On the upper mold seat (101), and work loose piece (105) horizontal movement is driven, when the work loose piece (105) and the punching When hole punch-pin (103) contacts, the power of the upper die component downlink is passed into the piercing punch (103), realizes punching;
The switching retaining mechanism is mounted on the upper mold seat (101), and the position of the work loose piece (105) is locked It is fixed.
2. punching Trimming Die according to claim 1, it is characterised in that:The piercing punch (103) includes two, Fixed position is set respectively according to the position of left and right side car door up knob;The hole-punching and switching mechanism and the switching lock Tight mechanism includes two sets, is matched respectively with two piercing punches (103).
3. punching Trimming Die according to claim 1 or 2, it is characterised in that:The hole-punching and switching mechanism further includes work Dynamic sliding panel (106), the activity sliding panel (106) is fixed on the whole material pressing core (102), and is lived positioned at the work The both sides of block (105), and be slidably matched with the work loose piece (105).
4. punching Trimming Die according to claim 1 or 2, it is characterised in that:The hole-punching and switching mechanism further includes work Block upper padding plate (107), the loose piece upper padding plate (107) are fixed on the top surface of the work loose piece (105).
5. punching Trimming Die according to claim 1 or 2, it is characterised in that:The hole-punching and switching mechanism further includes work Block lower bolster (108), the loose piece lower bolster (108) are fixed on the bottom surface of the work loose piece (105);
The piercing punch (103) is equipped with contact boss (1031).
6. punching Trimming Die according to claim 1, it is characterised in that:The driving device (104) is cylinder, and is led to Cylinder feed shaft (1041) is crossed to be connected with the work loose piece (105).
7. punching Trimming Die according to claim 1, it is characterised in that:The switching retaining mechanism includes installing plate (109), lock shaft (110) and lock washer (111);
The installing plate (109) is fixed on the upper mold seat (101);
One end of the lock shaft (110) is threadedly coupled through the installing plate (109) with the work loose piece (105) afterwards, institute The other end for stating lock shaft (110) is arranged circumferentially multiple grooves (1101);
The lock washer (111) is fixed in the groove (1101), and the lock shaft (110) is fixed.
8. punching Trimming Die according to claim 1, it is characterised in that:The punch mechanism further includes punching holding pad (112), the punching holding pad (112) is fixed on the whole material pressing core (102), and positioned at the piercing punch (103) Below.
9. punching Trimming Die according to claim 1, it is characterised in that:The telescoping mechanism (114) is nitrogen gas spring, The upper end is mounted on the upper mold seat (101), and lower end is mounted on the piercing punch (103).
10. punching Trimming Die according to claim 1, it is characterised in that:The punch mechanism further includes punch-pin safety Screw (113), punch-pin safety screw (113) upper end are fixed on the upper mold seat (101), and lower slide is mounted on described On piercing punch (103), and the nut of the punch-pin safety screw (113) is stuck in always in the piercing punch (103).
CN201810147129.3A 2018-02-12 2018-02-12 punching trimming die Pending CN108067551A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810147129.3A CN108067551A (en) 2018-02-12 2018-02-12 punching trimming die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810147129.3A CN108067551A (en) 2018-02-12 2018-02-12 punching trimming die

Publications (1)

Publication Number Publication Date
CN108067551A true CN108067551A (en) 2018-05-25

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CN201810147129.3A Pending CN108067551A (en) 2018-02-12 2018-02-12 punching trimming die

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110976637A (en) * 2019-12-31 2020-04-10 江苏华灿电讯集团股份有限公司 Forming die and forming method for upper angle arm and angle arm base for antenna installation

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010214461A (en) * 2009-03-19 2010-09-30 Murata Machinery Ltd Die holder
CN103128180A (en) * 2013-03-06 2013-06-05 安徽江淮汽车股份有限公司 Shareable switching mechanism for cover molds with or without skylight
WO2013171795A1 (en) * 2012-05-17 2013-11-21 株式会社ヒロテック Trimming device
CN203955847U (en) * 2014-07-18 2014-11-26 安徽江淮汽车股份有限公司 One side punching mechanism
CN203991936U (en) * 2014-06-25 2014-12-10 山西艾斯特耐茨锻造有限公司 A kind of punching die
CN204052560U (en) * 2014-07-09 2014-12-31 青岛华东工程机械有限公司 A kind of automatic punching device
CN106890890A (en) * 2017-02-27 2017-06-27 安徽江淮汽车集团股份有限公司 Blanking punched mould with switching mechanism

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010214461A (en) * 2009-03-19 2010-09-30 Murata Machinery Ltd Die holder
WO2013171795A1 (en) * 2012-05-17 2013-11-21 株式会社ヒロテック Trimming device
CN103128180A (en) * 2013-03-06 2013-06-05 安徽江淮汽车股份有限公司 Shareable switching mechanism for cover molds with or without skylight
CN203991936U (en) * 2014-06-25 2014-12-10 山西艾斯特耐茨锻造有限公司 A kind of punching die
CN204052560U (en) * 2014-07-09 2014-12-31 青岛华东工程机械有限公司 A kind of automatic punching device
CN203955847U (en) * 2014-07-18 2014-11-26 安徽江淮汽车股份有限公司 One side punching mechanism
CN106890890A (en) * 2017-02-27 2017-06-27 安徽江淮汽车集团股份有限公司 Blanking punched mould with switching mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110976637A (en) * 2019-12-31 2020-04-10 江苏华灿电讯集团股份有限公司 Forming die and forming method for upper angle arm and angle arm base for antenna installation
CN110976637B (en) * 2019-12-31 2021-04-30 江苏华灿电讯集团股份有限公司 Forming die and forming method for upper angle arm and angle arm base for antenna installation

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Application publication date: 20180525