CN100491007C - Projective table type composite extruding precision punching forming mould - Google Patents

Projective table type composite extruding precision punching forming mould Download PDF

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Publication number
CN100491007C
CN100491007C CNB2007100924870A CN200710092487A CN100491007C CN 100491007 C CN100491007 C CN 100491007C CN B2007100924870 A CNB2007100924870 A CN B2007100924870A CN 200710092487 A CN200710092487 A CN 200710092487A CN 100491007 C CN100491007 C CN 100491007C
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China
Prior art keywords
die
punch
punching
board
main
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CNB2007100924870A
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Chinese (zh)
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CN101099979A (en
Inventor
邓明
吕琳
李庆
李艳霞
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重庆工学院
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Priority to CNB2007100924870A priority Critical patent/CN100491007C/en
Publication of CN101099979A publication Critical patent/CN101099979A/en
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Publication of CN100491007C publication Critical patent/CN100491007C/en

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Abstract

The present invention belongs to the field of plastically forming technology, and is especially one kind of boss type composite extruding and punching formation die, which includes one male punching die, one main female die, one auxiliary female die, one reverse punching plate, one reverse plate, one female die fixing plate, one disc spring and other parts. During extruding and punching formation, the blank is first extruded with the main female die and the auxiliary female die, and then extruded and punched precisely with the male die and the female dies. The composite die may be used in machining thick plate or low plasticity material into parts with curved profile, and has high section quality and high production efficiency.

Description

A kind of projective table type composite extruding precision punching forming mould
Technical field
The invention belongs to plastic forming technology, be specifically related to a kind of fine-punching formation device.
Background technology
Existing fine-punching formation technology has powerful flanging fine blanking technology, subtend die fine blanking technology etc., and they each have its pluses and minuses and accommodation:
1. powerful flanging fine blanking technology is a separation circuit from see in form, but in fact workpiece with remain before billot in the end separates as a whole.Essence is broken through the process that journey is a plastic deformation, and the part of processing has that dimensional uniformity is good, and the shear surface roughness can reach Ra3.6~0.2, and collapse angle and burr are all than advantages such as common stamping part are little.Its shortcoming is to process cut deal inductile part.
2. smart the dashing of subtend die grows up on the basis in powerful flanging essence, towards unmanageable part, can adopt subtend die essence to dash for the powerful flanging essence of the thicker employing of the relatively poor thickness of material plasticity.Its shortcoming is because on protruding die and the die size or installation or kinematic error, essence towards the time as easy as rolling off a logly on section, leave a trace, cause cross section quality poor.
Summary of the invention
The objective of the invention is to deficiency at the prior art existence, on the technical foundation of composite extruding fine-punching formation method, the projective table type composite extruding precision punching forming mould of a kind of Processing Curve profile part of developing, directly fine-punching formation slab or inductile material can obtain accurate curved profile part efficiently.
Technical scheme of the present invention is as follows:
The present invention proposes a kind of projective table type composite extruding precision punching forming mould of Processing Curve profile part, this mould includes piercing punch, major and minor die, upper bolster, die shoe, guide pin bushing guide pillar etc., also is provided with the anti-top board of punching, anti-top board, die block, punch-die backing plate and disk spring in addition.Rigging position relation between the above-mentioned parts is as follows: main die is fixed on the die shoe by die block, and piercing punch is positioned at main die, and fixes with the die backing plate on the die shoe, and anti-top board is installed between main die and the piercing punch.Punch-die is installed on the upper bolster by the punch-die backing plate, and secondary die is installed on outside the punch-die, is connected with guide pillar by guide plate, guide pin bushing, and the anti-top board of punching is installed on punch-die inside, between punching anti-top board top and the punch-die backing plate disk spring is installed.
Wherein, the marginal position near matrix cavity on the end face of major and minor die is provided with corresponding resistance material boss, and resistance material boss height is decided with sotck thinkness.
In the phase I that composite extruding fine-punching begins, secondary die and punch-die lock the formed indent degree of depth, and promptly shallow die cavity is the angle thickness that collapses of workpiece.
This mould must be used on triaxial pressure machine or the ordinary press that three dynamic pressure can be provided through repacking.
Advantage of the present invention shows following several aspect:
1. the good product quality of Huo Deing: dimensional tolerance is IT8~7 grade, and the shear surface roughness can reach 0.8um~0.4um, and the curved profile part of being produced (as gear, cam) can be directly used in the assembling of machinery, saves subsequent handling.
2. this mould can be processed inductile, the slab curved profile part that existing fine blanking technology is difficult to processing.In the composite extruding fine-punching process, plastic deformation does not occur over just the place that separates of part and waste material, and bigger plastic deformation has also taken place in the waste material zone.Break through in the journey in essence waste material has been carried out Compound Extrusion because one of main feature of this composite extruding fine-punching is exactly its pressing plate, impel waste material to produce plasticity depletion, to around waste material almost can't redeformation, at this moment, when punch moves downward again just as forward extrusion workpiece in rigid cylinder, thereby the essence of high-carbon steel part 3mm that has substantially exceeded fine blanking technology processing is towards the limit, and can obtain high surface quality.
3. workpiece section uniformity is fine, can not produce burr.Because in composite extruding fine-punching technology, secondary die indent (the being shallow die cavity) degree of depth is the angle thickness that collapses of workpiece, and the two-sided angle of collapsing has appearred in the extruding at two, has removed the chamfer machining of two part end faces from, has saved man-hour.
4. compare with gear ring type composite extruding fine punch die, projective table type resistance material better effects if, die life is longer.
5. can enhance productivity greatly, save production equipment.Dash can only working plastic material because existing gear ring pressing plate is smart, thickness can not be too big (domestic can only arrive 12mm), China adopts mechanical processing technique mostly for inductile slab gear at present, and this composite extruding fine-punching mould and technology are used on the production spur gear, production efficiency be can greatly improve, and, therefore can save equipment such as milling machine, grinding machine because part just has Grinding Machining Quality after essence has been dashed.
This mould has good market prospects aspect production application.
Description of drawings
Fig. 1 is the structural representation of this die device.
The specific embodiment
Understand for the ease of contrast, what the structure chart of this mould showed is the two states that begins and finish in the forming process.With center line A separately, a left side is half of show to be that secondary die is relative with punch-die lock and move to material and be subjected to the resistance material boss to stop the state at place, right one side of something is that blank enters main die fully, the smart state of finishing that dashes.As can be seen, this mould is mainly by forming with lower member: disk spring 1, punch-die 2, secondary die 3, the anti-top board 4 of punching, anti-top board 5, piercing punch 6, die shoe 7, die backing plate 8, die block 9, guide pillar 10, main die 11, guide plate 12, guide pin bushing 13, punch-die backing plate 14, upper bolster 15 from the figure.F indication resistance material lug boss position.Wherein, main die 11 is fixed on the die shoe 7 by die block 9, piercing punch 6 is positioned at main die 11, and it is fixing by the die backing plate on bolt and the die shoe 78, leave punch-die 2 spaces of the same size with the top between main die 11 and the piercing punch 6, anti-top board 5 is installed in this space.Punch-die 2 is installed on the upper bolster 15 by punch-die backing plate 14, and secondary die 3 is installed on outside the punch-die 2, is connected with guide pillar 10 by guide plate 12, guide pin bushing 13, and by guide pillar 10 guiding.The anti-top board 4 of punching is installed on punch-die 2 inside, between the top of the anti-top board 4 of punching and the punch-die backing plate 14 disk spring 1 is installed.Major and minor die 11 and 3 end face are provided with corresponding resistance material boss near the marginal position F of concave die cavity, and resistance material boss height is decided with sotck thinkness.In the compression stage of beginning, the secondary die 3 and the formed indent degree of depth of punch-die 2 lockings, promptly shallow die cavity E,, be the angle thickness that collapses of workpiece.
Referring to accompanying drawing 1, it is as follows to utilize above-mentioned shaping dies to carry out the process of composite extruding fine-punching formation:
The first step: with secondary die 3 and punch-die 2 relative lockings, the indent degree of depth that forms, the angle thickness that collapses for workpiece moves downward then, causes blank to be subjected to squeeze radially and outwards flows, simultaneously, material also upward the secondary die 3 and main die 11 chambeies of below flows, and is subjected to stopping of resistance material boss F on major and minor die 11 and 3 when flowing, and produces lateral pressure, make the deformed area form the triaxial pressure state, see the state on Fig. 1 left side.
Second step: extruding action is proceeded, and the waste part of blank fully is extruded, and material is a large amount of simultaneously flows in main die 11 die cavities, and anti-top board 5 is forced to back off, when outer blank by ironed to about thickness 1/3 the time, secondary die 3 stops descending.
The 3rd step: keep secondary die 3 pressure, invariant position, allow punch-die 2 move downward, make blank under forward extrusion, enter main die 11 fully, simultaneously, piercing punch enters punch-die 2, disk spring 1 applies counter-pressure by 4 pairs of blank middle parts of the anti-top board of punching, finishes the essence of inside and outside profile and dashes, the state on See Figure the right.
The 4th step: the mould die sinking, with anti-top board 5 part is released, promptly obtain product.

Claims (2)

1, a kind of projective table type composite extruding precision punching forming mould includes upper bolster, die shoe, guide plate, guide pin bushing and guide pillar; It is characterized in that: also be provided with piercing punch, main die, secondary die, the anti-top board of punching, anti-top board, die block, punch-die backing plate and disk spring; Described main die is fixed on the die shoe by die block, and piercing punch is positioned at main die, and fixes with the die backing plate on the die shoe, and anti-top board is installed between main die and the piercing punch; Punch-die is installed on the upper bolster by the punch-die backing plate, and secondary die is installed in outside the punch-die, and secondary die is connected with guide pillar by guide plate, guide pin bushing, does directed moving; The anti-top board of punching is installed on punch-die inside, between punching anti-top board top and the punch-die backing plate disk spring is installed; The end face of described major and minor die is provided with corresponding resistance material boss near the marginal position of matrix cavity.
2, projective table type composite extruding precision punching forming mould according to claim 1 is characterized in that: in the incipient stage of composite extruding fine-punching, and the formed indent degree of depth of the relative locking of secondary die with punch-die, promptly shallow die cavity is the angle thickness that collapses of workpiece.
CNB2007100924870A 2007-07-27 2007-07-27 Projective table type composite extruding precision punching forming mould CN100491007C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2007100924870A CN100491007C (en) 2007-07-27 2007-07-27 Projective table type composite extruding precision punching forming mould

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2007100924870A CN100491007C (en) 2007-07-27 2007-07-27 Projective table type composite extruding precision punching forming mould

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Publication Number Publication Date
CN101099979A CN101099979A (en) 2008-01-09
CN100491007C true CN100491007C (en) 2009-05-27

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102284596B (en) * 2011-06-22 2014-02-26 重庆理工大学 Closed extruding fine blanking die based on floating female die structure
CN102303061B (en) * 2011-09-29 2013-05-08 中国兵器工业第五九研究所 Forming method for branch type parts
CN102672050A (en) * 2012-05-25 2012-09-19 武汉理工大学 Precision stamping mold and rotary precision stamping forming method using same to process helical gears
CN103611750A (en) * 2013-11-14 2014-03-05 梧州恒声电子科技有限公司 Cold-extrusion sealed forming mould
CN105921594B (en) * 2016-05-17 2018-03-27 中机精冲科技(福建)有限公司 A kind of big thickness of small scrap (bridge) bright and clean fine blanking die of optimization design
CN106493236B (en) * 2016-12-28 2019-01-29 重庆市江津区恩聪机械厂 The cope plate component of fine die holder
CN109570446A (en) * 2018-11-20 2019-04-05 沈阳航发精密铸造有限公司 A kind of investment casting mold involute cam liftout attachment
CN110586759A (en) * 2019-10-12 2019-12-20 哈尔滨工业大学 Micro-bending and micro-punching composite forming device and forming method

Non-Patent Citations (9)

* Cited by examiner, † Cited by third party
Title
低塑性厚板的精密轮廓对向凹模冲裁技术及应用. 邓明,孙成亮.中国机械工程,第20期. 2006
低塑性厚板的精密轮廓对向凹模冲裁技术及应用. 邓明,孙成亮.中国机械工程,第20期. 2006 *
半凹陷内齿轮的精冲成形. 邓明等.锻压工艺,第2期. 2002
半凹陷内齿轮的精冲成形. 邓明等.锻压工艺,第2期. 2002 *
复合冲裁模设计. 徐宇等.模具技术,第2期. 2006
复合冲裁模设计. 徐宇等.模具技术,第2期. 2006 *
板料成形件内花键的精冲成形. 邓明等.模具工业,第12期. 2001
板料成形件内花键的精冲成形. 邓明等.模具工业,第12期. 2001 *
离合器板精冲成形工艺及模具设计. 邓明等.模具工业,第285卷第11期. 2004

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Assignee: Chongqing Changan Lingyun Auto Parts Co.,Ltd.

Assignor: Chongqing University of Technology

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Denomination of invention: Projective table type composite extruding precision punching forming mould

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