CN102430650A - Mould for tubing material forming - Google Patents

Mould for tubing material forming Download PDF

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Publication number
CN102430650A
CN102430650A CN2011103474097A CN201110347409A CN102430650A CN 102430650 A CN102430650 A CN 102430650A CN 2011103474097 A CN2011103474097 A CN 2011103474097A CN 201110347409 A CN201110347409 A CN 201110347409A CN 102430650 A CN102430650 A CN 102430650A
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CN
China
Prior art keywords
plate
mould
punch
jacking block
bolster
Prior art date
Application number
CN2011103474097A
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Chinese (zh)
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CN102430650B (en
Inventor
吴家文
胡宏
Original Assignee
隆昌山川精密焊管有限责任公司
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Priority to CN 201110347409 priority Critical patent/CN102430650B/en
Publication of CN102430650A publication Critical patent/CN102430650A/en
Application granted granted Critical
Publication of CN102430650B publication Critical patent/CN102430650B/en

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Abstract

The invention discloses a mould for tubing material forming, comprising an upper mould part, a lower mould part and a guide part, wherein the upper mould part comprises a mould handle, a knocking rod, an upper mould seat, an upper cushion plate, an upper cover plate, an upper convex mould, an upper top block and an upper fixed plate; the upper top block is sleeved in the upper cover plate; the upper convex mould passes through the upper top block; the top of the upper convex mould is in contact with the upper cushion plate; the upper convex mould is in sliding fit with the upper top block; the lower mould part comprises a lower cover plate, a lower fixed plate, a lower cushion plate, a lower mould seat, a lower convex mould and a lower top block; the lower top block is sleeved in the lower cover plate; the lower convex mould passes through the lower top block; the bottom of the lower convex mould is in contact with the lower cushion plate; the lower convex mould is in sliding fit with the lower top block; the guide part comprises a guide sleeve and a guide column; the guide sleeve penetrates in the upper mould seat; and the guide column penetrates in the lower mould seat. The mould uses the upper and lower convex moulds to press parts, so that the tubing materials are deformed to necessary shapes; the lengths of products are controlled by the upper and lower top blocks, the sizes of the two ends of each product are ensured to be consistent, the quality requirements of products are ensured, and the material pushing operation is convenient.

Description

Tube forming is used mould

Technical field

The present invention relates to a kind of tube forming and use mould, belong to technical field of mold.

 

Background technology

In stamping products, the product that has utilizes the tubing straight forming, as in vehicular shock absorber, playing the suspension ring of connection effect; Such part requires in punch process, to guarantee the uniformity of endoporus, length dimension and two ends size, owing to need the size and dimension of control many, and the error that requires the two ends size is less than 0.2mm; Particularity owing to tubing causes location difficulty in moulding in addition, complicated operation in the processes process, and labor intensity of operating personnel is high; And the product size precision that processes and form accuracy are difficult to guarantee; Die debugging is complicated, and manufacturing cost is high, therefore; Tube forming all is not easy to guarantee in production and quality control, is badly in need of improving.

 

Summary of the invention

The objective of the invention is to: provide a kind of tube forming to use mould; Process uses complicated operation, product size precision and form accuracy to be difficult to guarantee in the existing pipe mold moulding of solution; The technical problem that die debugging is complicated, manufacturing cost is high, thus the problem that exists in the above-mentioned prior art can effectively be solved.

The object of the invention realizes through following technical proposals: a kind of tube forming is used mould; Comprise part of the upper die, part of the lower die and targeting part; Said part of the upper die comprises die shank, makes bar, upper bolster, upper padding plate, upper cover plate, go up punch, go up jacking block and upper mounted plate, and the said jacking block of going up is sheathed in the upper cover plate, and last punch passes jacking block; And its top contacts with upper padding plate, and said upward punch and last jacking block are slidingly matched; The part of the lower die comprises lower cover, bottom plate, lower bolster, die shoe, lower punch and following jacking block, and following jacking block is sheathed in the lower cover, and lower punch passes down jacking block, and its bottom contacts with lower cushion block, and said lower punch is slidingly matched with following jacking block; Said targeting part comprises guide pin bushing and guide pillar, and guide pin bushing penetrates in the upper bolster, and guide pillar penetrates in the die shoe.

As a kind of optimal way, said part of the upper die also comprises backing plate, hollow backing plate and re-packs, and beats that bar passes die shank and two ends pass, and the lower end after passing is passed backing plate and contacted with re-packing.

As a kind of optimal way; Said part of the lower die also comprises rubber and supporting plate, pull bar and push rod; Said pull bar passes rubber and supporting plate places die shoe; Establish a clamp nut in the end of pull bar, said push rod one end places the top of rubber and supporting plate, and the other end passes lower bolster and contacts with following jacking block.

As a kind of optimal way, said backing plate, hollow backing plate, upper padding plate and upper mounted plate are threaded with upper bolster respectively and become one, and said lower bolster, bottom plate are threaded with die shoe respectively and become one.

As a kind of optimal way, bottom plate is located at the below of lower cover, and lower bolster is positioned at the below of bottom plate, and die shoe is positioned at the below of lower bolster.

As a kind of optimal way, backing plate is located at the below of upper bolster; Hollow backing plate is located at the below of backing plate, and upper padding plate is located at the below of hollow backing plate, and upper mounted plate is located at the below of upper padding plate, and upper cover plate is located at the below of upper mounted plate.

As a kind of optimal way, said punch and upper mounted plate interference fit, lower punch and the bottom plate interference fit of going up.

Compared with prior art, beneficial effect of the present invention: tube forming of the present invention is exerted pressure to the part under the forcing press effect with lower punch in the mould utilization, makes the shape that tubing is deformed into to be needed; Through the length of jacking block control product up and down, when jacking block was adjacent to lower bolster up and down, mould closes was in symmetry status up and down, assurance product two ends consistent size; Therefore the utilization of this mould can guarantee the quality requirement of product, and pusher is convenient; Therefore; Utilize the tube forming method of this mould; Can solve the technical barrier of pipe mold moulding, that this process is used is simple to operate, the mould manufacturing is prone to guarantee, product size precision and form accuracy are prone to guarantee, die debugging is simple, low cost of manufacture, easy-to-operate; At the bottom of the labor intensity of operating staff, can in the tube forming mould, be used widely.

 

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of upper bolster among Fig. 1 of the present invention;

Fig. 3 is the cross section structure sketch map of Fig. 2 upper bolster;

Fig. 4 is the structural representation of guide pin bushing among Fig. 1 of the present invention;

Fig. 5 is the structural representation of guide pillar among Fig. 1 of the present invention;

Fig. 6 is the structural representation of upper cover plate among Fig. 1 of the present invention;

Fig. 7 is the cross section structure sketch map of upper cover plate among Fig. 6;

Fig. 8 is the structural representation of bottom plate among Fig. 1 of the present invention;

Fig. 9 is the A-A cross-sectional view among Fig. 8;

Figure 10 is the structural representation of lower punch among Fig. 1 of the present invention;

Figure 11 is the structural representation of following jacking block among Fig. 1 of the present invention.

Wherein: 1: die shank 2: make bar 3: upper bolster 4: backing plate 5: hollow backing plate 6: re-pack 7: upper padding plate 8: guide pin bushing 9: upper cover plate 10: guide pillar 11: lower cover 12: bottom plate 13: lower bolster 14: die shoe 15: rubber and supporting plate 16: pull bar 17: nut 18: push rod 19: lower punch 20: following jacking block 21: go up punch 22: go up jacking block 23: upper mounted plate.

 

The specific embodiment

In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.

Disclosed all characteristics in this specification, or the step in disclosed all methods or the process are except the speciality of mutual repulsion and/or the step; All can make up by any way; Only if special narration all can be replaced by other equivalences or the alternative features with similar purpose, promptly; Only if special narration, an embodiment in a series of equivalences of each characteristic or the similar characteristics.

The tube forming that Fig. 1-Figure 11 shows the embodiment of the invention to be provided is used mould, for the ease of explanation, only shows the part relevant with the embodiment of the invention.

Embodiment

As shown in Figure 1, tube forming of the present invention comprises part of the upper die, part of the lower die and targeting part with mould.

Said part of the upper die comprises die shank 1, makes bar 2, upper bolster 3, backing plate 4, hollow backing plate 5, re-pack 6, upper padding plate 7, upper cover plate 9, go up punch 21, go up jacking block 22 and upper mounted plate 23, and backing plate 4 is located at the below of upper bolster 3; Hollow backing plate 5 is located at the below of backing plate 4; Upper padding plate 7 is located at the below of hollow backing plate 5; Upper mounted plate 23 is located at the below of upper padding plate 7; Upper cover plate 9 is located at the below of upper mounted plate 23, and said backing plate 4, hollow backing plate 5, upper padding plate 7 and upper mounted plate 23 are threaded with upper bolster 3 respectively and become one.The said jacking block 22 of going up is sheathed in the upper cover plate 9, and last punch 21 passes jacking block 22, and its top contact with upper padding plate 7, said upward punch 21 and upper mounted plate 23 interference fit, and said upward punch 21 and last jacking block 22 are slidingly matched; Saidly beat that bar 2 passes die shank 1 and two ends pass, the lower end after passing is passed backing plate 4 and 6 is contacted with re-packing.

Said part of the lower die comprises lower cover 11, bottom plate 12, lower bolster 13, die shoe 14, rubber and supporting plate 15, pull bar 16, push rod 18, lower punch 19 and following jacking block 20; Following jacking block 20 is sheathed in the lower cover 11; Lower punch 19 passes down jacking block 20; Its bottom contacts with lower cushion block 13, and said lower punch 19 is slidingly matched with following jacking block 20, lower punch 19 and bottom plate 12 interference fit.Said lower bolster 13, bottom plate 12 are threaded with die shoe 14 respectively and become one.Bottom plate 12 is located at the below of lower cover 11, and lower bolster 13 is positioned at the below of bottom plate 12, and die shoe 14 is positioned at the below of lower bolster 13; Said pull bar 16 passes rubber and supporting plate 15 places die shoe 14, establishes a clamp nut 17 in the end of pull bar 16, and said push rod 18 1 ends place the top of rubber and supporting plate 15, and the other end passes lower bolster 14 and contacts with following jacking block 20.

Said targeting part comprises guide pin bushing 8 and guide pillar 10, and guide pin bushing 8 penetrates in the upper bolster 3, and guide pillar 10 penetrates in the die shoe 14.

Specifically in the present embodiment, the structure of part parts of the present invention acts on as follows with it:

1, die shank: effect is the part that this mould and forcing press upper table face are connected as one; The hole interference fit on an end and the upper bolster wherein; The other end cooperates with installing hole on the forcing press; The screw that holds out against with on the forcing press holds out against, and guarantees that the first half of mould and the upper table face of forcing press connect as one.

2, make bar: be placed in the hole of die shank, the upper end passes die shank, and the centre bore that die shank and backing plate are passed in the lower end contacts with re-packing, work accomplish that the back promotes to re-pack to its bump by forcing press upper rod-knocking crossbeam and on behind the jacking block, part is backed off from last punch.

3, upper bolster: like Fig. 2, shown in Figure 3; Its effect is that mould the first half part all is connected as a single entity; Top shoe table top of plane and forcing press is fitted on it; Specifically in this enforcement, use screw that backing plate, hollow backing plate, upper padding plate, upper mounted plate are connected as one, the strength that mould top is born is delivered on the forcing press through upper bolster.

4, backing plate: be to play a supportive role, be positioned at the below of upper bolster to die shank.

5, hollow backing plate: be positioned at the below of backing plate, effect is to guarantee that mould has certain material space that unloads, and interstitial hole is to place to re-pack, and guaranteeing re-packs has certain mobile space.

6, re-pack: be placed in the hole at center of hollow backing plate, effect is to be delivered to three little beating on the bar with beating the power that bar obtains from pressure machine cross-beam, is being delivered on the jacking block through the little bar of beating, make jacking block after accomplishing moulding with workpiece from unload the punch.

7, upper padding plate: be positioned at the below of hollow backing plate, its effect is to bear the strength that punch produces when moulding.

8, guide pin bushing: as shown in Figure 4, quantity is two, is installed in respectively in the hole of upper bolster, adopts interference fit to assemble, and play the guiding role, and the center of two parts working portion on an axis about the assurance mould.

9, upper cover plate like Fig. 6, shown in Figure 7, below upper mounted plate, is connected with upper mounted plate with screw, and its effect guarantees to go up jacking block and in mould, slides up and down in the heart all the time, guarantees to go up the jacking block material returned.

10, guide pillar: as shown in Figure 5, quantity is two, is installed in respectively in the hole of die shoe, adopts interference fit to assemble, and play the guiding role, and the center of two parts working portion on an axis about the assurance mould.

11, lower cover is connected with bottom plate with screw, and its effect guarantees that jacking block slides up and down and control its travel position all the time in the heart in mould down, guarantees that jacking block ejects workpiece from lower punch down.

12, bottom plate, like Fig. 8, shown in Figure 9, its effect is fixing lower punch, adopts interference fit with lower punch, guarantees that lower punch does not rock.

13, lower bolster: its effect is to bear the strength that lower punch produces when moulding, with strength transmission to die shoe.

14, die shoe: structure and upper bolster are similar.Effect all links together mould the latter half part; Top shoe table top of plane and forcing press is fitted on it; Use screw with lower bolster, bottom plate connects as one, and the strength that the mould lower part is born is delivered on the press bench face through die shoe.

15, rubber and pallet part, pull bar, push rod and nut are the material-pulling devices of part of the lower die, and wherein pull bar is fixed on the die shoe; With nut rubber, supporting plate are connected as one, these parts are positioned at the below of mould, and 3 push rods are placed on the supporting plate; Work is compressed rubber, and after the forcing press backhaul, rubber recovers; Produce thrust upwards, workpiece is withdrawed from from lower punch through push rod and following jacking block.

16, go up punch, lower punch: the structure of lower punch is shown in figure 10, and the structure of last punch is identical with lower punch, and only placement direction is relative.Said upper and lower punch respectively with the upper and lower fixing plate interference fit, accomplish the moulding of part, satisfy product requirement.

17, upper mounted plate: be positioned at the below of upper padding plate, the top of upper cover plate, its effect is the fixing punch of going up, and adopts interference fit with last punch, punch does not rock in the assurance.

18, go up jacking block, following jacking block: the structure of following jacking block is shown in figure 11, and the structure of last jacking block is identical with following jacking block, and only placement direction is relative.Said upper and lower jacking block is installed in respectively in upper cover plate and the lower cover; And be slidingly matched with last punch, lower punch respectively through the hole; Play the control product height during work; Play the material returned in that the effect of making bar and push rod is following respectively after work work is accomplished, workpiece is withdrawed from from last lower punch.

This mould utilizes upper and lower punch under the effect of forcing press, part being exerted pressure, and makes the shape that tubing is deformed into to be needed; The length of upper and lower jacking block control product, when upper and lower jacking block was adjacent to upper and lower backing plate, mould closes was in symmetry status up and down, guaranteed product two ends consistent size.

Use tube forming of the present invention to carry out tube forming with mould, its concrete operations use is following:

After mould assembling completion and having debugged the gap;

Mould is installed on the forcing press, and mould the first half is connected with the slide block of forcing press through die shank, and mould the latter half is connected with the lower table face of forcing press;

After the installation, two parts up and down of mould lead through guide pillars and bushes, guarantee that the center of mould upper and lower part working portion overlaps;

After mould installs, the stroke of forcing press is debugged, debugged and to carry out punching press after lower punch contacts;

Workpiece blank is placed on the localization part of lower punch, press ram is descending, and upper and lower punch is exerted pressure up and down to part under the effect of active force and reaction force simultaneously, accomplishes the moulding to part;

After moulding was accomplished, the forcing press backhaul was to the starting position, if the part after the moulding is held tightly on lower punch; Jacking block under then the compression rebound through rubber on rubber and the supporting plate pushes is released workpiece; If workpiece is embraced on last punch, then hit striking rod when the forcing press backhaul through the bar crossbeam of beating on the forcing press, transmit impulsive force to last jacking block; Workpiece is pushed from last punch, accomplish the processing of a product.

Tube forming of the present invention is exerted pressure to the part under the forcing press effect with lower punch in the mould utilization, makes the shape that tubing is deformed into to be needed; Through the length of jacking block control product up and down, when jacking block was adjacent to lower bolster up and down, mould closes was in symmetry status up and down, assurance product two ends consistent size; Therefore the utilization of this mould can guarantee the quality requirement of product, and pusher is convenient; Therefore; Utilize the tube forming method of this mould; Can solve the technical barrier of pipe mold moulding, that this process is used is simple to operate, the mould manufacturing is prone to guarantee, product size precision and form accuracy are prone to guarantee, die debugging is simple, low cost of manufacture, easy-to-operate; At the bottom of the labor intensity of operating staff, can in the tube forming mould, be used widely.

The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (7)

1. a tube forming is used mould; It is characterized in that: comprise part of the upper die, part of the lower die and targeting part; Said part of the upper die comprises die shank (1), makes bar (2), upper bolster (3), upper padding plate (7), upper cover plate (9), go up punch (21), go up jacking block (22) and upper mounted plate (23); The said jacking block (22) of going up is sheathed in the upper cover plate (9); Last punch (21) passes jacking block (22), and its top contacts with upper padding plate (7), and the said punch (21) of going up is slidingly matched with last jacking block (22); The part of the lower die comprises lower cover (11), bottom plate (12), lower bolster (13), die shoe (14), lower punch (19) and following jacking block (20); Following jacking block (20) is sheathed in the lower cover (11); Lower punch (19) passes down jacking block (20); Its bottom contacts with lower cushion block (13), and said lower punch (19) is slidingly matched with following jacking block (20); Said targeting part comprises guide pin bushing (8) and guide pillar (10), and guide pin bushing (8) penetrates in the upper bolster (3), and guide pillar (10) penetrates in the die shoe (14).
2. tube forming as claimed in claim 1 is used mould; It is characterized in that: said part of the upper die also comprises backing plate (4), hollow backing plate (5) and re-pack (6); Beat that bar (2) passes die shank (1) and two ends pass, the lower end after passing is passed backing plate (4) and is contacted with re-pack (6).
3. tube forming as claimed in claim 2 is used mould; It is characterized in that: said part of the lower die also comprises rubber and supporting plate (15), pull bar (16) and push rod (18); Said pull bar (16) passes rubber and supporting plate (15) places die shoe (14); Establish a clamp nut (17) in the end of pull bar (16), said push rod (18) one ends place the top of rubber and supporting plate (15), and the other end passes lower bolster (14) and contacts with following jacking block (20).
4. tube forming as claimed in claim 3 is used mould; It is characterized in that: said backing plate (4), hollow backing plate (5), upper padding plate (7) and upper mounted plate (23) are threaded with upper bolster (3) respectively and become one, and said lower bolster (13), bottom plate (12) are threaded with die shoe (14) respectively and become one.
5. tube forming as claimed in claim 4 is used mould, it is characterized in that: bottom plate (12) is located at the below of lower cover (11), and lower bolster (13) is positioned at the below of bottom plate (12), and die shoe (14) is positioned at the below of lower bolster (13).
6. tube forming as claimed in claim 2 is used mould, it is characterized in that: backing plate (4) is located at the below of upper bolster (3); Hollow backing plate (5) is located at the below of backing plate (4), and upper padding plate (7) is located at the below of hollow backing plate (5), and upper mounted plate (23) is located at the below of upper padding plate (7), and upper cover plate (9) is located at the below of upper mounted plate (23).
7. tube forming as claimed in claim 1 is used mould, it is characterized in that: said punch (21) and upper mounted plate (23) interference fit of going up, lower punch (19) and bottom plate (12) interference fit.
CN 201110347409 2011-11-07 2011-11-07 Mould for tubing material forming CN102430650B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110347409 CN102430650B (en) 2011-11-07 2011-11-07 Mould for tubing material forming

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110347409 CN102430650B (en) 2011-11-07 2011-11-07 Mould for tubing material forming

Publications (2)

Publication Number Publication Date
CN102430650A true CN102430650A (en) 2012-05-02
CN102430650B CN102430650B (en) 2013-11-06

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CN 201110347409 CN102430650B (en) 2011-11-07 2011-11-07 Mould for tubing material forming

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102773343A (en) * 2012-07-20 2012-11-14 苏州吴中经济开发区搏宇模具加工厂 General hook stamping die of notebook
CN102773816A (en) * 2012-07-24 2012-11-14 苏州吴中经济开发区搏宇模具加工厂 Combined-type movably-positioning device
CN103084507A (en) * 2012-11-13 2013-05-08 无锡爱博金属制品有限公司 Stamping die for lower reinforcing plate of automotive windscreen wiper
CN103831356A (en) * 2014-03-18 2014-06-04 苏州市东吴滚针轴承有限公司 Dual-flanging die for stamping bearing outer ring by 180 degrees
CN104097280A (en) * 2013-04-12 2014-10-15 迪斯油压工业(昆山)有限公司 Structure improved knockout apparatus
CN104478237A (en) * 2015-01-04 2015-04-01 安徽华夏显示技术股份有限公司 Tool for manufacturing rectifier tube stem
CN104741454A (en) * 2015-03-23 2015-07-01 柳州市富城机械有限责任公司 Silencer pipe joint forming die
CN104858307A (en) * 2015-05-25 2015-08-26 隆昌山川精密焊管有限责任公司 Connecting plate one-time forming and ribbing device
CN104971995A (en) * 2014-04-10 2015-10-14 哈尔滨建成集团有限公司 Manual compression mould used for small-sized thin-walled sheet part

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CN201470712U (en) * 2009-08-31 2010-05-19 隆昌山川精密焊管有限责任公司 Detachable multiple closing-in forming die for tubular goods
CN101829733A (en) * 2010-04-14 2010-09-15 无锡市中捷减震器有限公司 Punching/hole flanging die for internal supporting tube of auto shock absorber
KR20100103319A (en) * 2009-03-12 2010-09-27 배충현 Press mold for punching pipe
CN201807657U (en) * 2010-08-26 2011-04-27 哈尔滨建成集团有限公司 Composite die for drawing and forming shallow conical parts with recessed lateral walls
CN201880798U (en) * 2010-11-29 2011-06-29 隆昌山川精密焊管有限责任公司 Blanking, punching and shaping composite stamping die

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100103319A (en) * 2009-03-12 2010-09-27 배충현 Press mold for punching pipe
CN201470712U (en) * 2009-08-31 2010-05-19 隆昌山川精密焊管有限责任公司 Detachable multiple closing-in forming die for tubular goods
CN101829733A (en) * 2010-04-14 2010-09-15 无锡市中捷减震器有限公司 Punching/hole flanging die for internal supporting tube of auto shock absorber
CN201807657U (en) * 2010-08-26 2011-04-27 哈尔滨建成集团有限公司 Composite die for drawing and forming shallow conical parts with recessed lateral walls
CN201880798U (en) * 2010-11-29 2011-06-29 隆昌山川精密焊管有限责任公司 Blanking, punching and shaping composite stamping die

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102773343A (en) * 2012-07-20 2012-11-14 苏州吴中经济开发区搏宇模具加工厂 General hook stamping die of notebook
CN102773816A (en) * 2012-07-24 2012-11-14 苏州吴中经济开发区搏宇模具加工厂 Combined-type movably-positioning device
CN103084507A (en) * 2012-11-13 2013-05-08 无锡爱博金属制品有限公司 Stamping die for lower reinforcing plate of automotive windscreen wiper
CN104097280A (en) * 2013-04-12 2014-10-15 迪斯油压工业(昆山)有限公司 Structure improved knockout apparatus
CN104097280B (en) * 2013-04-12 2016-12-28 迪斯油压工业(昆山)有限公司 The filling device that structure is improved
CN103831356A (en) * 2014-03-18 2014-06-04 苏州市东吴滚针轴承有限公司 Dual-flanging die for stamping bearing outer ring by 180 degrees
CN103831356B (en) * 2014-03-18 2016-06-29 苏州市东吴滚针轴承有限公司 A kind of double-turnup mould for 180 °, impulse bearing outer ring
CN104971995A (en) * 2014-04-10 2015-10-14 哈尔滨建成集团有限公司 Manual compression mould used for small-sized thin-walled sheet part
CN104478237A (en) * 2015-01-04 2015-04-01 安徽华夏显示技术股份有限公司 Tool for manufacturing rectifier tube stem
CN104741454A (en) * 2015-03-23 2015-07-01 柳州市富城机械有限责任公司 Silencer pipe joint forming die
CN104858307A (en) * 2015-05-25 2015-08-26 隆昌山川精密焊管有限责任公司 Connecting plate one-time forming and ribbing device

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