CN102166600A - Die extending structure and die extending method using hydraulic moveable male die - Google Patents
Die extending structure and die extending method using hydraulic moveable male die Download PDFInfo
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- CN102166600A CN102166600A CN 201110104243 CN201110104243A CN102166600A CN 102166600 A CN102166600 A CN 102166600A CN 201110104243 CN201110104243 CN 201110104243 CN 201110104243 A CN201110104243 A CN 201110104243A CN 102166600 A CN102166600 A CN 102166600A
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- die
- movable punch
- punch
- hydraulic
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Abstract
The invention discloses a die extending structure and a die extending method using a hydraulic moveable male die. The die structure comprises an elastic polyurethane supporting component, a supporting plate, a male die base plate, an edge-pressing ring, a moveable male die, a small male die, a female die and an upper die base, wherein the elastic polyurethane supporting component and the supporting plate are fixed on a lower die base; the male die base plate is supported on the elastic polyurethane supporting component and the supporting plate; the edge-pressing ring is positioned on the male die base plate; the moveable male die and the small male die are embedded into the edge-pressing ring; the female die is positioned on the edge-pressing ring, the moveable male die and the small male die and a groove is formed on the female die; the upper die base is fixed on the female die; a jacking rod used for vertically jacking the edge-pressing ring and passing through the male die base plate is fixedly arranged at the top end of the elastic polyurethane supporting component; a metal plate which is molded by extending is placed between the upper surfaces of the edge-pressing ring, the moveable male die and the small male die and the lower surface of the female die; and a hydraulic system used for jacking the moveable male die is arranged on the male die base plate. The method comprises the following steps of: jacking the moveable male die to a set position through a hydraulic force of a hydraulic cylinder; descending the upper die base and descending the female die by pressing the female die on the plate; and after molding, jacking the molded manufactured piece out. Cracks generated in a deep drawing process are prevented.
Description
Technical field
The present invention relates to a kind of metal sheet material deep-drawing shaping dies.Particularly relate to a kind of drawing die structure and drawing method of utilizing the hydraulic coupling movable punch that metal blank is increased drawing depth by drawing die and reduce number of drawing.
Background technology
Drawing is a kind of important manufacturing process of metal blank.In the conventional drawing die mechanism, one uses the method for the shaping of inside-out redrawing.Be characterized in that die is in the part of the upper die, punch is fixed on the die shoe, carry out binder by blank holder, the feature less for dark chamber characteristic distance or the shaping degree of depth is bigger, in forming process, the flow resistance of material is increasing along with the degree of depth of pull and stretch greatly, often takes place easily that metal blank breaks or the local details inadequate situation that is shaped, and causes producing waste product.
Fig. 1 is the drawing die structure of prior art, include die shoe 3, be fixed on the elastic polyurethane support member 4 more than two on die shoe 3 peripheries, be fixed on the gripper shoe more than two 2 on the die shoe 3, be supported on the convex mould pad 6 on elastic polyurethane support member 4 and the gripper shoe 2, be positioned at the blank holder 7 on the convex mould pad 6, be embedded in movable punch 12 and small punch 10 in the blank holder 7, be positioned at blank holder 7, above movable punch 12 and the small punch 10 and with movable punch 12 and the reeded die 8 of small punch 10 corresponding formation, and be fixed on upper bolster 9 on the die 8, wherein, the top of described elastic polyurethane support member 4 fixedly installs the push rod that runs through convex mould pad 65 that is useful on vertical jack-up blank holder 7, described blank holder 7, be used to place metal blank 14 between the lower surface of the upper surface of movable punch 12 and small punch 10 and die 8 by drawing and moulding.Three dark chambeies are arranged on the drawing die structure of prior art shown in Figure 1, and at a distance of nearer.Because the degree of depth is bigger, distance is nearer every getting each other, in drawing process, is easy to cause the drawing crack of metal blank.
Summary of the invention
Technical problem to be solved by this invention is, thereby provides a kind of partial structurtes that change drawing die to increase the drawing die structure and the drawing method that utilize the hydraulic coupling movable punch of the nearer product crystallized ability of the shaping degree of depth or drip molding depth characteristic.
The technical solution adopted in the present invention is: a kind of drawing die structure and drawing method that utilizes the hydraulic coupling movable punch.Utilize the drawing die structure of hydraulic coupling movable punch, include: die shoe, be fixed on the elastic polyurethane support member more than two on the die shoe, be fixed on the gripper shoe more than two on the die shoe, be supported on the convex mould pad on elastic polyurethane support member and the gripper shoe, be positioned at the blank holder on the convex mould pad, be embedded in movable punch and small punch in the blank holder, be positioned at blank holder, movable punch and above the small punch and the reeded die of corresponding formation with movable punch and small punch, and be fixed on upper bolster on the die, wherein, described elastic polyurethane support member top fixedly installs the push rod that runs through convex mould pad that is useful on vertical jack-up blank holder, described blank holder, be used to place the metal blank by drawing and moulding between the upper surface of movable punch and small punch and the lower surface of die, described convex mould pad is provided with the hydraulic system that is used for movable punch jack-up.
Described hydraulic system includes the hydraulic cylinder at the center that is fixed on convex mould pad, and linking to each other by oil pipe with hydraulic cylinder is used to drive the hydraulic pump of hydraulic cylinder, and is used to control the controller that hydraulic pump starts.
Described movable punch lower end is set with the movable punch guide pillar, and described movable punch guide pillar moves up and down along the guiding through hole that is formed on the convex mould pad when movable punch moves up and down.
Also be provided with stop screw on the described movable punch, described stop screw is when movable punch moves up and down, move up and down along the spacing counterbore that is formed on the convex mould pad, aperture, described spacing counterbore top is less than the aperture, bottom, the nut of described stop screw is positioned at the aperture, spacing counterbore bottom of movable punch, and is stuck in the step place of spacing counterbore when moving on to desired location on stop screw.
A kind of drawing method that utilizes the drawing die structure of hydraulic coupling movable punch comprises the steps:
1) movable punch is upwards pushed up the position of setting by the hydraulic coupling of hydraulic cylinder, this position is undertaken spacing by stop screw, lead by the movable punch guide pillar when movable punch is up and down, blank holder moves up under the effect of the power of elastic polyurethane support member, and plate is placed on the blank holder;
2) upper bolster is descending, die is pressing plate descending, next rises descending in the pressure effect of upper bolster for blank holder and movable punch, movable punch offers the top power that one of plate makes progress under the effect of hydraulic coupling, increase the fluid ability of plate, increase along with the degree of depth that is shaped, by controller, gradually reduce the active force of hydraulic cylinder to movable punch, finish up to shaping;
3) after shaping was finished, the product that it is good that blank holder will be shaped under the restoring force effect of elastic polyurethane support member ejected, and finishes shaping.
Drawing die structure and the drawing method that utilizes the hydraulic coupling movable punch of the present invention increased the mobilization force of plate at drawing process, increased the applying rate of drawing depth and the shaped portion and the punch of plate, prevents to break in the drawing process generation.
Description of drawings
Fig. 1 is the structural representation of drawing die of the present invention;
Fig. 2 is the drawing die structural representation of prior art;
Fig. 3 is the forming process hydraulic coupling control curve map of hydraulic coupling movable punch of the present invention.
Wherein:
1. hydraulic cylinder 2. gripper shoes
3. die shoe 4. elastic polyurethane support members
5. push rod 6. convex mould pads
7. blank holder 8. dies
9. upper bolster 10. small punches
11. movable punch guide pillar 12. movable punches
13. stop screw 14. metal blanks
15. oil pipe 16. hydraulic pumps
17. control system 18. spacing counterbores
19. guiding through hole
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the drawing die structure and the drawing method of hydraulic coupling movable punch of utilizing of the present invention made a detailed description.
As shown in Figure 2, the drawing die structure of utilizing the hydraulic coupling movable punch of the present invention, include: die shoe 3, be fixed on the elastic polyurethane support member 4 more than two on die shoe 3 peripheries, be fixed on the gripper shoe more than two 2 on the die shoe 3, be supported on the convex mould pad 6 on elastic polyurethane support member 4 and the gripper shoe 2, be positioned at the blank holder 7 on the convex mould pad 6, be embedded in movable punch 12 and small punch 10 in the blank holder 7, be positioned at blank holder 7, above movable punch 12 and the small punch 10 and with movable punch 12 and the reeded die 8 of small punch 10 corresponding formation, and be fixed on upper bolster 9 on the die 8, wherein, the top of described elastic polyurethane support member 4 fixedly installs the push rod that runs through convex mould pad 65 that is useful on vertical jack-up blank holder 7, described blank holder 7, be used to place metal blank 14 between the lower surface of the upper surface of movable punch 12 and small punch 10 and die 8 by drawing and moulding, described movable punch 12 lower ends are set with movable punch guide pillar 11, described movable punch guide pillar 11 moves up and down along the guiding through hole 19 that is formed on the convex mould pad 6 when movable punch 12 moves up and down.
Described convex mould pad 6 is provided with the hydraulic system that is used for movable punch 12 jack-up.Described hydraulic system includes the hydraulic cylinder 1 at the center that is fixed on convex mould pad 6, and linking to each other by oil pipe 15 with hydraulic cylinder 1 is used to drive the hydraulic pump 16 of hydraulic cylinder 1, and is used to control the controller 17 that hydraulic pump 16 starts.
Also be provided with stop screw 13 on the described movable punch 12, described stop screw 13 is when movable punch 12 moves up and down, move up and down along the spacing counterbore 18 that is formed on the convex mould pad 6, aperture, described spacing counterbore 18 top is less than the aperture, bottom, the nut of described stop screw 13 is positioned at the aperture, spacing counterbore 18 bottom of movable punch 12, and is stuck in the step place of spacing counterbore 18 when moving on to desired location on stop screw 13.
The drawing die arrangement works process of hydraulic coupling movable punch of utilizing of the present invention is as follows: before the mold work cycle begins, blank holder 7 is under the effect of elastic polyurethane support member 4, jack-up makes progress, opening controller 17 sends a signal for hydraulic pump 16, then pressure is delivered to hydraulic cylinder 1 through oil pipe 15, hydraulic cylinder 1 promotes movable punch 12 and moves up under the effect of hydraulic coupling, in the moving process, lead by movable punch guide pillar 11.After moving a certain distance, stop screw 13 works, and makes movable punch 12 stop motions.Metal blank 14 is placed on the blank holder 7, and preparation finishes.The part of the upper die begins descending, die 8 pressing plate 14 to promote movable punches 12 and blank holder 7 descending together.In movable punch 12 descending processes, change by curve shown in Figure 3 by the pressure of controller 17 regulator solution cylinder pressures 1, pressure is reduced gradually, make the charging in early stage fast, the later stage slows down gradually, and makes it to adapt to the flowing velocity of monolith.When blank holder 7 goes downwards to convex mould pad 6 places, forming process finishes, and controller 17 is with the hydraulic coupling unloading of hydraulic cylinder 1.The part of the upper die is up, and blank holder 7 ejects the good metal blank 14 that is shaped under the resilient force of elastic polyurethane support member 4, and forming process finishes.
The drawing method that utilizes the drawing die structure of hydraulic coupling movable punch of the present invention is that the punch that will be shaped utilizes hydraulic coupling jack-up, and the height that movable punch floats is determined by stop screw, led by the movable punch guide pillar when movable punch moves.After metal blank was put well, the die of patrix was pressing metal blank and blank holder descending together, and the power of movable punch is controlled with control system according to the degree of depth that is shaped.At this moment, the movable punch power that hydraulic cylinder provides in the forming process has become charging power, thereby more metal blank is entered in the die of dark chamber.Simultaneously, also make the applying that metal blank is better and the maintenance of punch shape is good.
The drawing method that utilizes the drawing die structure of hydraulic coupling movable punch of the present invention comprises the steps:
1) movable punch is upwards pushed up the position of setting by the hydraulic coupling of hydraulic cylinder, this position is undertaken spacing by stop screw, lead by the movable punch guide pillar when movable punch is up and down, blank holder moves up under the effect of the power of elastic polyurethane support member, and plate is placed on the blank holder;
2) upper bolster is descending, die is pressing plate descending, next rises descending in the pressure effect of upper bolster for blank holder and movable punch, movable punch offers the top power that one of plate makes progress under the effect of hydraulic coupling, increase the fluid ability of plate, increase along with the degree of depth that is shaped, by control device, gradually reduce the active force of hydraulic cylinder to movable punch, finish up to shaping;
3) after shaping was finished, the product that it is good that blank holder will be shaped under the restoring force effect of elastic polyurethane support member ejected, and finishes shaping.
The drawing method that utilizes the drawing die structure of hydraulic coupling movable punch of the present invention, the charging power by controller 17 control movable punches 17 makes charging power change by certain curve.
Claims (5)
1. drawing die structure of utilizing the hydraulic coupling movable punch, include: die shoe (3), be fixed on the elastic polyurethane support member (4) more than two on the die shoe (3), be fixed on the gripper shoe more than two (2) on the die shoe (3), be supported on the convex mould pad (6) on elastic polyurethane support member (4) and the gripper shoe (2), be positioned at the blank holder (7) on the convex mould pad (6), be embedded in movable punch (12) and small punch (10) in the blank holder (7), be positioned at blank holder (7), above movable punch (12) and the small punch (10) and with movable punch (12) and small punch (10) the reeded die of corresponding formation (8), and be fixed on upper bolster (9) on the die (8), wherein, the top of described elastic polyurethane support member (4) fixedly installs the push rod that runs through convex mould pad (6) (5) that is useful on vertical jack-up blank holder (7), described blank holder (7), be used to place between the lower surface of the upper surface of movable punch (12) and small punch (10) and die (8) by the metal blank of drawing and moulding (14), it is characterized in that described convex mould pad (6) is provided with the hydraulic system that is used for movable punch (12) jack-up.
2. the drawing die structure of utilizing the hydraulic coupling movable punch according to claim 1, it is characterized in that, described hydraulic system includes the hydraulic cylinder (1) at the center that is fixed on convex mould pad (6), the hydraulic pump (16) that links to each other and be used to drive hydraulic cylinder (1) by oil pipe (15) with hydraulic cylinder (1), and be used to control the controller (17) that hydraulic pump (16) starts.
3. the drawing die structure of utilizing the hydraulic coupling movable punch according to claim 1, it is characterized in that, described movable punch (12) lower end is set with movable punch guide pillar (11), described movable punch guide pillar (11), moves up and down along the guiding through hole (19) that is formed on the convex mould pad (6) when moving up and down at movable punch (12).
4. the drawing die structure of utilizing the hydraulic coupling movable punch according to claim 1, it is characterized in that, also be provided with stop screw (13) on the described movable punch (12), described stop screw (13) is at movable punch (12) when moving up and down, move up and down along the spacing counterbore (18) that is formed on the convex mould pad (6), described spacing counterbore (18) aperture, top is less than the aperture, bottom, the nut of described stop screw (13) is positioned at spacing counterbore (18) aperture, bottom of movable punch (12), and is stuck in the step place of spacing counterbore (18) when moving on to desired location on stop screw (13).
5. the described drawing method that utilizes the drawing die structure of hydraulic coupling movable punch of claim 1 is characterized in that, comprises the steps:
1) movable punch is upwards pushed up the position of setting by the hydraulic coupling of hydraulic cylinder, this position is undertaken spacing by stop screw, lead by the movable punch guide pillar when movable punch is up and down, blank holder moves up under the effect of the power of elastic polyurethane support member, and plate is placed on the blank holder;
2) upper bolster is descending, die is pressing plate descending, next rises descending in the pressure effect of upper bolster for blank holder and movable punch, movable punch offers the top power that one of plate makes progress under the effect of hydraulic coupling, increase the fluid ability of plate, increase along with the degree of depth that is shaped, by controller, gradually reduce the active force of hydraulic cylinder to movable punch, finish up to shaping;
3) after shaping was finished, the product that it is good that blank holder will be shaped under the restoring force effect of elastic polyurethane support member ejected, and finishes shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110104243 CN102166600B (en) | 2011-04-25 | 2011-04-25 | Die extending structure and die extending method using hydraulic moveable male die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110104243 CN102166600B (en) | 2011-04-25 | 2011-04-25 | Die extending structure and die extending method using hydraulic moveable male die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102166600A true CN102166600A (en) | 2011-08-31 |
| CN102166600B CN102166600B (en) | 2013-01-02 |
Family
ID=44488024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110104243 Expired - Fee Related CN102166600B (en) | 2011-04-25 | 2011-04-25 | Die extending structure and die extending method using hydraulic moveable male die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102166600B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102652972A (en) * | 2012-04-10 | 2012-09-05 | 叶集试验区红太阳动力机械有限公司 | Metal plate arch groove forming device |
| CN102896219A (en) * | 2012-09-17 | 2013-01-30 | 芜湖世达模具有限公司 | Molding die and stamping method thereof |
| CN102921814A (en) * | 2012-11-16 | 2013-02-13 | 江苏尚诚精密模具科技有限公司 | Die for inner container of dish-washing machine |
| CN107262602A (en) * | 2017-07-05 | 2017-10-20 | 安徽江淮汽车集团股份有限公司 | Two sequence set of molds |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3889509A (en) * | 1974-04-08 | 1975-06-17 | Gulf & Western Mfg Co | Horizontal can ironing press |
| CN1559719A (en) * | 2004-03-02 | 2005-01-05 | 广东工业大学 | Metal plate material hydraulic shaping method and its mould device |
| CN101244439A (en) * | 2008-02-29 | 2008-08-20 | 西安交通大学 | Design method for mechanical-hydraulic auxiliary reverse redrawing mold |
| CN201380239Y (en) * | 2009-04-09 | 2010-01-13 | 重庆工学院 | Die capable of changing resistance force of draw bead |
-
2011
- 2011-04-25 CN CN 201110104243 patent/CN102166600B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3889509A (en) * | 1974-04-08 | 1975-06-17 | Gulf & Western Mfg Co | Horizontal can ironing press |
| CN1559719A (en) * | 2004-03-02 | 2005-01-05 | 广东工业大学 | Metal plate material hydraulic shaping method and its mould device |
| CN101244439A (en) * | 2008-02-29 | 2008-08-20 | 西安交通大学 | Design method for mechanical-hydraulic auxiliary reverse redrawing mold |
| CN201380239Y (en) * | 2009-04-09 | 2010-01-13 | 重庆工学院 | Die capable of changing resistance force of draw bead |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102652972A (en) * | 2012-04-10 | 2012-09-05 | 叶集试验区红太阳动力机械有限公司 | Metal plate arch groove forming device |
| CN102652972B (en) * | 2012-04-10 | 2015-04-22 | 叶集试验区红太阳动力机械有限公司 | Metal plate arch groove forming device |
| CN102896219A (en) * | 2012-09-17 | 2013-01-30 | 芜湖世达模具有限公司 | Molding die and stamping method thereof |
| CN102921814A (en) * | 2012-11-16 | 2013-02-13 | 江苏尚诚精密模具科技有限公司 | Die for inner container of dish-washing machine |
| CN102921814B (en) * | 2012-11-16 | 2015-05-20 | 江苏尚诚精密模具科技有限公司 | Die for inner container of dish-washing machine |
| CN107262602A (en) * | 2017-07-05 | 2017-10-20 | 安徽江淮汽车集团股份有限公司 | Two sequence set of molds |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102166600B (en) | 2013-01-02 |
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Granted publication date: 20130102 Termination date: 20160425 |