CN103706713A - Punching die and punching switching mechanism thereof - Google Patents

Punching die and punching switching mechanism thereof Download PDF

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Publication number
CN103706713A
CN103706713A CN201210376410.7A CN201210376410A CN103706713A CN 103706713 A CN103706713 A CN 103706713A CN 201210376410 A CN201210376410 A CN 201210376410A CN 103706713 A CN103706713 A CN 103706713A
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CN
China
Prior art keywords
punching
actuator
cushion block
piercing punch
switching
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CN201210376410.7A
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Chinese (zh)
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CN103706713B (en
Inventor
贺天鹏
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北汽福田汽车股份有限公司
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Priority to CN201210376410.7A priority Critical patent/CN103706713B/en
Publication of CN103706713A publication Critical patent/CN103706713A/en
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Publication of CN103706713B publication Critical patent/CN103706713B/en

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Abstract

The invention discloses a punching switching mechanism which comprises a driving member driving device, a driving member (3), a punching convex die (4) and pressing devices (5). Lower cushion block portions (41) are arranged on the upper surface of the punching convex die, and the driving member driving device can drive the driving member to reciprocate so as to enable the punching switching mechanism to switch between a punching closing state and a non-punching closing state. When the punching switching mechanism is in a non-punching closing state, a distance H is formed between the lower surface of each upper cushion block portion and the upper surface of the corresponding lower cushion block portion, and stroke of each pressing device is larger than H. By the above technical scheme, the punching switching mechanism is more optimized in structure, and no resistance is generated by the driving member and the punching convex die in the process of switching, so that punching switching operation is enabled to be simpler and more timesaving, and production efficiency of a punching die is improved.

Description

Punching die and hole-punching and switching mechanism thereof
Technical field
The present invention relates to processing and manufacturing field, particularly, relate to a kind of diel and hole-punching and switching mechanism thereof.
Background technology
In diel, the shape that usually can run into stamping parts is identical, but the different situation in position, hole; now conventionally adopt hole-punching and switching mechanism; to reach same set of mould, realize the needs of position, various parts hole, both met stamping parts exploitation needs, saved again development cost.
Currently used hole-punching and switching mechanism comprises upper bolster, cylinder, connector, actuator, piercing punch and eccentric swage, cylinder is fixed on upper bolster, cylinder is connected with actuator by connector, eccentric swage is connected with upper bolster by eccentric swage spring, and piercing punch is connected with eccentric swage by piercing punch spring.On described actuator, be provided with wedge slide plate, on described piercing punch, be provided with the lower wedge slide plate corresponding with upper wedge slide plate on actuator.When realizing punching switching, by cylinder, drive connector to drive actuator, the wedge slide plate on actuator converts horizontal movement to vertical motion by the relative motion between the inclined-plane of wedge slide plate.When punching, by the relative motion of air cylinder driven wedge slide plate, promote piercing punch and move downward to protrude from eccentric swage to carry out punching; When not punching, cylinder reverse drive wedge slide plate is to cancel the downward active force to piercing punch, and piercing punch overcomes self gravitation and moves upward under the effect of the restoring force of back-moving spring, so that in piercing punch retraction eccentric swage.
Said structure is being used existing problems, cylinder is when driving two wedge slide plate move toward one another, frictional force between two inclined-planes that contact is larger, need in actual use very large motive force could promote wedge motion, especially when the punch mechanism that needs to switch is larger, if the thrust of cylinder is not, punch mechanism cannot be released to eccentric swage smoothly and carry out punching, the larger this phenomenon of punching is just more obvious, has a strong impact on production efficiency.
Summary of the invention
The object of this invention is to provide a kind of hole-punching and switching mechanism for diel, this hole-punching and switching mechanism is realized punching by upper lower cushion block portion and is switched.
To achieve these goals, the invention provides a kind of hole-punching and switching mechanism for diel, this diel comprises upper bolster and die shoe, this hole-punching and switching mechanism comprises actuator drive unit, actuator, piercing punch and eccentric swage, this actuator drive unit is fixed on this upper bolster, this eccentric swage is connected with this upper bolster by eccentric swage spring, this piercing punch is connected with described eccentric swage by piercing punch spring, wherein, the lower surface of this actuator is provided with cushion block portion, the upper surface of this piercing punch is provided with lower cushion block portion, described actuator drive unit can drive described actuator to move back and forth, so that described hole-punching and switching mechanism can switch between punching closure state and not punching closure state, when described hole-punching and switching mechanism is during in not punching closure state, between the upper surface of the lower surface of described upper cushion block portion and described lower cushion block portion, there is distance H, the stroke of described eccentric swage spring is more than or equal to H.
Preferably, described punching closure state is described upper bolster and die shoe when closed, and the upper cushion block portion of described actuator relatively contacts up and down with the lower cushion block portion of described piercing punch;
When described not punching closure state is described upper bolster and die shoe closure, stagger mutually in the upper cushion block portion of described actuator and the lower cushion block portion of described piercing punch left and right.
Preferably, the stroke of described eccentric swage spring equals H.
Preferably, the stroke of described piercing punch spring equals H.
What preferably, described upper cushion block portion and lower cushion block portion were space is a plurality of.
Preferably, described actuator comprises left actuator part and the right actuator part arranging along its length, described piercing punch comprises left piercing punch part and the right piercing punch part corresponding with described left actuator part and right actuator part, described left piercing punch part and right piercing punch partly form as one and by guide pin bushing, are slidably connected to described upper bolster respectively in the both sides of going up along its length, and described actuator drive unit is arranged between described left actuator part and right actuator part.
Preferably, on the lower surface of described left actuator part and right actuator part, be respectively arranged with described upper cushion block portion, on described left piercing punch part and right piercing punch upper surface partly, be respectively arranged with described lower cushion block portion.
Preferably, described actuator drive unit is cylinder.
Preferably, the piston rod of described cylinder is connected in described actuator by connector.
The present invention also provides a kind of diel, and wherein, this diel comprises hole-punching and switching mechanism of the present invention.
By technique scheme, hole-punching and switching mechanism structure of the present invention is optimized more, makes actuator and piercing punch can not produce resistance in handoff procedure.The operation that so just makes punching switch is more simply laborsaving, has improved the production efficiency of diel.
Other features and advantages of the present invention partly in detail are described the specific embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for description, is used from explanation the present invention, but is not construed as limiting the invention with the specific embodiment one below.In the accompanying drawings:
Fig. 1 is the schematic diagram of punching die according to the preferred embodiment of the present invention, and wherein hole-punching and switching mechanism is in not punching closure state
Fig. 2 is the schematic diagram of punching die according to the preferred embodiment of the present invention, and wherein hole-punching and switching mechanism is in punching closure state.
Description of reference numerals
1 cylinder 2 connectors
Cushion block portion on 3 actuators 31
4 piercing punch 41 lower cushion block portions
5 eccentric swages
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, the specific embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
In the present invention, in the situation that not doing contrary explanation, the noun of locality of use refers to as " upper and lower " direction that piercing punch moves, and " left and right " typically refers to the direction perpendicular to the piercing punch direction of motion.
The invention provides a kind of hole-punching and switching mechanism for diel, this diel comprises upper bolster and die shoe, this hole-punching and switching mechanism comprises actuator drive unit, actuator 3, piercing punch 4 and eccentric swage 5, this actuator drive unit is fixed on this upper bolster, this eccentric swage 5 is connected with this upper bolster by eccentric swage spring, this piercing punch 4 is connected with described eccentric swage 5 by piercing punch spring, wherein, on the lower surface of this actuator 3, be provided with cushion block portion 31, on the upper surface of this piercing punch 4, be provided with lower cushion block portion 41, described actuator drive unit can drive described actuator 3 to move back and forth, so that described hole-punching and switching mechanism can switch between punching closure state and not punching closure state, when described hole-punching and switching mechanism is during in not punching closure state, between the upper surface of the lower surface of described upper cushion block portion 31 and described lower cushion block portion 41, there is distance H, the stroke of described eccentric swage spring is more than or equal to H.
Hole-punching and switching mechanism of the present invention is for diel, and this diel comprises upper bolster and die shoe, and this hole-punching and switching mechanism is arranged between this upper bolster and die shoe.This hole-punching and switching mechanism comprises actuator 3, piercing punch 4, for driving actuator drive unit and the eccentric swage 5 of actuator 3.This actuator drive unit is fixed on upper bolster, so just can drive actuator 3 to move with respect to upper bolster.Eccentric swage 5 is connected with upper bolster by eccentric swage spring, thereby eccentric swage 5 can be moved with respect to upper bolster.Piercing punch 4 is connected with eccentric swage 5 by piercing punch spring, so piercing punch 4 can be with respect to eccentric swage 5 motions.And the lower surface of actuator 3 is provided with cushion block portion 31, correspondingly, the upper surface of piercing punch 4 is provided with lower cushion block portion 41.When actuator drive unit drives described actuator 3 to move back and forth, actuator 3 just can be with respect to piercing punch 4 motions.It should be noted that, the direction of actuator 3 motion is perpendicular to the pressing direction of piercing punch 4, that is to say substantially parallelly with upper bolster, and piercing punch 4 carries out ramming motion substantially in vertical direction with respect to upper bolster.
Preferably, described punching closure state is described upper bolster and die shoe when closed, and the upper cushion block portion 31 of described actuator 3 relatively contacts up and down with the lower cushion block portion 41 of described piercing punch 4;
When described not punching closure state is described upper bolster and die shoe closure, stagger mutually in the upper cushion block portion 31 of described actuator 3 and lower cushion block portion 41 left and right of described piercing punch 4.
Due to the motion of actuator 3 with respect to piercing punch 4, hole-punching and switching mechanism is switched between punching closure state and not punching closure state.Under punching closure state, upper bolster and die shoe are closed, now go up the lower surface of cushion block portion 31 and the upper surface joint of lower cushion block portion 41, upper cushion block portion 31 contacts along upper and lower direction accordingly with lower cushion block portion 41, namely actuator 3 and piercing punch 4 contact along the vertical direction, thereby piercing punch 4 is exerted pressure, ejection piercing punch 4, make it along pressing direction, protrude from eccentric swage 5, to carry out punching; Under not punching closure state, upper bolster and die shoe are closed, now go up cushion block portion 31 and stagger mutually in lower cushion block portion 41 left and right, that is to say that cushion block portion 31 and lower cushion block portion 41 are separated from each other, and the lower surface of upper cushion block portion 31 do not contact with piercing punch 4, the upper surface of lower cushion block portion 41 does not contact with drive plate 3 yet, that is to say that now drive plate 3 is completely separated with piercing punch 4, piercing punch 4 does not stress, and within being therefore retracted in eccentric swage 5, does not carry out punching.
According to technical scheme of the present invention, between the lower surface of described upper cushion block portion 31 and the upper surface of described lower cushion block portion 41, there is distance H, the stroke of described eccentric swage spring is more than or equal to H.Such technical scheme is for hole-punching and switching mechanism is switched between not punching closure state and punching closure state, owing to utilizing the structure of lower cushion block portion in technical scheme of the present invention, at left and right directions, can block and cannot by the conversion of motion on left and right directions, be directly the motion on above-below direction and piercing punch 4 is released and arrived outside eccentric swage 5.
Particularly, when never punching closure state switches to punching closure state, first to open mould, make upper bolster separated with die shoe, because eccentric swage spring is compressed under upper and lower die holder closure state, the limes superiors position in stroke namely, when upper and lower die holder is separated, under the effect of the restoring force of pressure device spring, eccentric swage 5 moves downward, also by piercing punch spring, drive piercing punch 4 to move downward simultaneously, lower cushion block portion 41 also just moves downward with respect to upper cushion block portion 31, the lower surface of upper cushion block portion 31 and the distance H between the upper surface of lower cushion block portion 41 also just constantly reduce.When eccentric swage spring returns back to original length during in equilbrium position (now due to the effect of eccentric swage self gravitation, eccentric swage spring should be in being slightly stretched state, describe in process herein the factor of self gravitation is ignored), the limit inferior position of eccentric swage 5 in stroke now, because the stroke of eccentric swage spring is more than or equal to H, therefore when the limit inferior position of eccentric swage 5 in stroke, the lower surface of upper cushion block portion 31 and the upper surface of lower cushion block portion 41 are separated from each other on above-below direction, that is to say between cushion block portion 31 and lower cushion block portion 41 and there is gap, now just can drive freely side-to-side movement of actuator 3 by actuator drive unit, thereby can move to, make the lower surface of cushion block portion 31 and the upper surface position opposing upper and lower of lower cushion block portion 41, again when closed upper and lower die holder, because actuator 3 pushes away piercing punch 4 downwards, therefore the stroke (being compressed length) of piercing punch spring is H.When punching closure state switches to not punching closure state, in like manner carry out contrary process, repeat no more herein.
As can be seen here, by above technical scheme, needn't apply the punching handoff procedure that very large external force just can realize hole-punching and switching mechanism to actuator 3, pass through technique scheme, hole-punching and switching mechanism structure of the present invention is optimized more, makes actuator and piercing punch can not produce resistance in handoff procedure.The operation that so just makes punching switch is more simply laborsaving, has improved the production efficiency of diel.
Preferably, the stroke of described eccentric swage spring equals H.
According to introduction above, it is in order to realize drive plate 3 in punching position and the not switching between punching position that the stroke of eccentric swage spring is more than or equal to H.And, when the stroke of eccentric swage spring equals H, after never punching position is switched to punching position, again when closed upper and lower die holder, because the stroke of eccentric swage spring just equals H, the lower surface of above cushion block portion 31 just contact with the upper surface of lower cushion block portion 41, thereby when having avoided closed upper and lower die holder, upper lower cushion block portion bumps and sends the sound.
Preferably, the stroke of described piercing punch spring equals H.
From above, after never punching closure state is switched to punching closure state, the stroke of piercing punch spring under the effect of upper lower cushion block portion is that H(is that compressed amount is H).
What preferably, described upper cushion block portion 31 and lower cushion block portion 41 were space is a plurality of.
A plurality of upper cushion block portions 31 and lower cushion block portion 41 mutually stagger and arrange, so just can between actuator 3 and piercing punch 4, form more connection, and arrange under not punching closure state, can prevent that actuator 3 is because maloperation etc. is with respect to piercing punch 4 motions. interlacedly
Preferably, described actuator 3 comprises left actuator part and the right actuator part arranging along its length, described piercing punch 4 comprises left piercing punch part and the right piercing punch part corresponding with described left actuator part and right actuator part, described left piercing punch part and right piercing punch partly form as one and by guide pin bushing, are slidably connected to described upper bolster respectively in the both sides of going up along its length, and described actuator drive unit is arranged between described left actuator part and right actuator part.
Because actuator drive unit is fixed on upper bolster, in this preferred embodiment, actuator 3 comprises left actuator part and right actuator part, so just actuator drive unit can be fixed between the actuator part of left and right.Correspondingly, piercing punch also comprises left piercing punch part and the right piercing punch part forming as one, piercing punch is connected on eccentric swage 5 by piercing punch spring on the one hand, for convenient, along punching direction, move and piercing punch need to be slidably connected on upper bolster by guide pin bushing on the other hand, in this preferred embodiment, piercing punch part in left and right is slidably connected to upper bolster by guide pin bushing respectively.
In addition, because actuator volume and weight is all larger, this structure therefore actuator drive unit being arranged between the actuator part of left and right can make the stressed comparatively even of left and right actuator part, makes to drive smooth and easy.And left and right piercing punch part respectively arranges a guide pin bushing and can make guiding more accurate.
Preferably, on the lower surface of described left actuator part and right actuator part, be respectively arranged with described upper cushion block portion 31, on described left piercing punch part and right piercing punch upper surface partly, be respectively arranged with described lower cushion block portion 41.
In the left and right sides, in corresponding actuator part and piercing punch part, lower cushion block portion 31 is set respectively respectively, like this can be so that in punch process, left and right actuator part equably to the left and right piercing punch partly exert pressure, thereby make punching more smooth and easy and even
Preferably, described actuator drive unit is cylinder 1.Preferably, the piston rod of described cylinder 1 is connected in described actuator 3 by connector 2.
In this preferred embodiment, this actuator drive unit is preferably cylinder 1, and is connected respectively by the piston rod of cylinder and the left and right actuator parts of actuator 3, thereby drives actuator 3.
In addition, the present invention also provides a kind of diel, and wherein, this diel comprises hole-punching and switching mechanism of the present invention.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characterictic described in the above-mentioned specific embodiment, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible combinations.
In addition, between various embodiment of the present invention, also can be combined, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.

Claims (10)

1. the hole-punching and switching mechanism for diel, this diel comprises upper bolster and die shoe, this hole-punching and switching mechanism comprises actuator drive unit, actuator (3), piercing punch (4) and eccentric swage (5), this actuator drive unit is fixed on this upper bolster, this eccentric swage (5) is connected with this upper bolster by eccentric swage spring, this piercing punch (4) is connected with described eccentric swage (5) by piercing punch spring, it is characterized in that, the lower surface of this actuator (3) is provided with cushion block portion (31), the upper surface of this piercing punch (4) is provided with lower cushion block portion (41), described actuator drive unit can drive described actuator (3) to move back and forth, so that described hole-punching and switching mechanism can switch between punching closure state and not punching closure state, when described hole-punching and switching mechanism is during in not punching closure state, between the upper surface of the lower surface of described upper cushion block portion (31) and described lower cushion block portion (41), there is distance H, the stroke of described eccentric swage spring is more than or equal to H.
2. hole-punching and switching mechanism according to claim 1, is characterized in that,
When described punching closure state is described upper bolster and die shoe closure, the upper cushion block portion (31) of described actuator (3) relatively contacts up and down with the lower cushion block portion (41) of described piercing punch (4);
When described not punching closure state is described upper bolster and die shoe closure, stagger mutually in the upper cushion block portion (31) of described actuator (3) and the lower cushion block portion (41) of described piercing punch (4) left and right.
3. hole-punching and switching mechanism according to claim 2, is characterized in that, the stroke of described eccentric swage spring equals H.
4. according to the hole-punching and switching mechanism described in claim 2 or 3, it is characterized in that, the stroke of described piercing punch spring equals H.
5. hole-punching and switching mechanism according to claim 2, is characterized in that, what described upper cushion block portion (31) and lower cushion block portion (41) were space is a plurality of.
6. hole-punching and switching mechanism according to claim 2, it is characterized in that, described actuator (3) comprises left actuator part and the right actuator part arranging along its length, described piercing punch (4) comprises left piercing punch part and the right piercing punch part corresponding with described left actuator part and right actuator part, described left piercing punch part and right piercing punch partly form as one and by guide pin bushing, are slidably connected to described upper bolster respectively in the both sides of going up along its length, described actuator drive unit is arranged between described left actuator part and right actuator part.
7. hole-punching and switching mechanism according to claim 6, it is characterized in that, on the lower surface of described left actuator part and right actuator part, be respectively arranged with described upper cushion block portion (31), on the upper surface of described left piercing punch part and right piercing punch part, be respectively arranged with described lower cushion block portion (41).
8. hole-punching and switching mechanism according to claim 1 and 2, is characterized in that, described actuator drive unit is cylinder (1).
9. hole-punching and switching mechanism according to claim 8, is characterized in that, the piston rod of described cylinder (1) is connected in described actuator (3) by connector (2).
10. a diel, is characterized in that, this diel comprises the hole-punching and switching mechanism described in any one in the claims 1-9.
CN201210376410.7A 2012-09-29 2012-09-29 Punching die and hole-punching and switching mechanism thereof CN103706713B (en)

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CN103706713B CN103706713B (en) 2016-03-16

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104690153A (en) * 2015-02-06 2015-06-10 凌云工业股份有限公司 Die for punching processing of car threshold type products
CN104722638A (en) * 2015-03-16 2015-06-24 安徽江淮汽车股份有限公司 Stamping die and special-shaped male die switching device thereof
CN105798103A (en) * 2016-05-09 2016-07-27 顺德工业(江苏)有限公司 Electromagnetic valve type intermittent shearing device
CN105965780A (en) * 2016-06-06 2016-09-28 芜湖恒信汽车内饰制造有限公司 Injection mold for forming hole by means of auxiliary device
CN106003573A (en) * 2016-06-06 2016-10-12 芜湖恒信汽车内饰制造有限公司 Auxiliary device for injection molding type holes

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CN201579336U (en) * 2009-10-11 2010-09-15 柳州福臻车体实业有限公司 Mold flexible tooling mechanism
CN202239298U (en) * 2011-07-15 2012-05-30 江铃汽车股份有限公司 Pneumatic stamping mould switching device
CN102527838A (en) * 2012-03-08 2012-07-04 无锡同捷汽车设计有限公司 Upper die base switching device for stamping top cover
CN202877400U (en) * 2012-09-29 2013-04-17 北汽福田汽车股份有限公司 Punching die and punching switching mechanism thereof

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JP2000071028A (en) * 1998-08-28 2000-03-07 Amada Co Ltd Die and die exchange device
US20020095968A1 (en) * 2001-01-23 2002-07-25 Kabushiki Kaisha Toyota Jidoshokki. Press die
CN101327507A (en) * 2008-07-24 2008-12-24 重庆长安汽车股份有限公司 Hole-punching and switching mechanism of mould
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104690153A (en) * 2015-02-06 2015-06-10 凌云工业股份有限公司 Die for punching processing of car threshold type products
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CN104722638A (en) * 2015-03-16 2015-06-24 安徽江淮汽车股份有限公司 Stamping die and special-shaped male die switching device thereof
CN105798103A (en) * 2016-05-09 2016-07-27 顺德工业(江苏)有限公司 Electromagnetic valve type intermittent shearing device
CN105965780A (en) * 2016-06-06 2016-09-28 芜湖恒信汽车内饰制造有限公司 Injection mold for forming hole by means of auxiliary device
CN106003573A (en) * 2016-06-06 2016-10-12 芜湖恒信汽车内饰制造有限公司 Auxiliary device for injection molding type holes
CN106003573B (en) * 2016-06-06 2018-08-03 芜湖恒信汽车内饰制造有限公司 A kind of auxiliary device being molded into type hole

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