CN205270566U - Stretching die - Google Patents
Stretching die Download PDFInfo
- Publication number
- CN205270566U CN205270566U CN201520908158.9U CN201520908158U CN205270566U CN 205270566 U CN205270566 U CN 205270566U CN 201520908158 U CN201520908158 U CN 201520908158U CN 205270566 U CN205270566 U CN 205270566U
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- die
- die holder
- punch
- stretching
- holder
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Abstract
The utility model provides a stretching die belongs to the mould field, including upper die base, die, die shank, die holder, terrace die and rubber mold pad, the die shank with upper die base fixed connection, the die shank is located the top of upper die base, the die fixed connection be in on the upper die base, the rubber mold pad with die holder fixed connection, the terrace die with rubber mold pad fixed connection, just the rubber mold pad is located the terrace die with between the die holder. The utility model provides a stretching die's terrace die setting just sets up the rubber mold pad between terrace die and die holder on the die holder, when the die was pressed on the work piece, pressure of terrace die can be given to the work piece, made rubber mold pad compressed, and the terrace die is crescent to the reaction force of work piece afterwards, makes the work piece warp, before the work piece deformation, has certain buffering between terrace die and the work piece like this, avoids work piece and the collision of terrace die rigidity to cause the work piece to break.
Description
Technical field
The utility model relates to mould applications, specifically, it relates to stretching die.
Background technology
In punching production, when the thin material of stamping-out, the stamping-out gap of these materials, is commonly referred to gapless punching press all at 0.01mm once. Require working portion dimensional precision and the surface quality height of punching die, when making stretching die, difficulty is very big like this, manufacture the cost height of stretching die, and when punching press, owing to the brute force of stretching die makes workpiece deformation, producing huge pressure between stretching die and workpiece, this kind of pressure may make workpiece with bigger burr, even by workpiece avulsion, produce waste product.
Practical novel content
The purpose of this utility model is to provide a kind of stretching die, to improve existing stretching die problem by workpiece avulsion in punching course.
The utility model is achieved in that
Based on above-mentioned purpose, the utility model provides a kind of stretching die, comprise die holder, die, mould handle, lower die holder, punch and rubber die-cushion, described mould handle is fixedly connected with described upper die holder, described mould handle is positioned at the top of described upper die holder, and described die is fixedly connected on described upper die holder, and described rubber die-cushion is fixedly connected with described lower die holder, described punch is fixedly connected with described rubber die-cushion, and described rubber die-cushion is between described punch and described lower die holder.
The punch of the stretching die that the utility model provides is arranged on lower die holder, and rubber die-cushion is set between punch and lower die holder, when die is pressed on workpiece, workpiece can give punch pressure, and rubber die-cushion is compressed, and the reactive force of workpiece is increased by punch gradually subsequently, make workpiece deformation, like this before workpiece deformation, between punch and workpiece, there is certain buffering, avoid workpiece and punch rigid collision to cause workpiece to break.
Further, described stretching die also comprises discharging plate, many connection posts and rubber pad, described rubber pad is fixedly connected with described lower die holder, described connection post is fixedly connected with described rubber pad, the axial line of described connection post and the axis parallel of described punch, and described rubber pad is between described connection post and described lower die holder; Described discharging plate is connected post with described many and is fixedly connected with, it is provided with the first through hole in the middle of described discharging plate, the axial line of described first through hole and the axis parallel of described punch, described punch can stretch out described first through hole along the direction towards described die, and the upper surface of described discharging plate exceeds the end face of described punch.
Before the stretching, being put into by workpiece on discharging plate, workpiece is more steady, make the precision of stretching higher, after workpiece completes tensile deformation, along with die is taken away by upper die holder, discharging plate also can upwards lifting one segment distance, workpiece is made from punch, has saved the time taking off workpiece.
Further, described discharging plate is also provided with rubber layer, and described rubber layer is positioned at the top of described discharging plate.
When being stretched by workpiece, die can so that, under pressure at a high speed, workpiece be subject to immense pressure, and this may make workpiece shift, even by workpiece compressive strain; Punch is in the process stretched by workpiece, punch directly contacts with workpiece, and a part for workpiece is up pushed up, and makes workpiece deformation, the part that during stretching, the sidewall of punch and workpiece are stretched acutely rubs, may by workpiece drawing crack, after arranging rubber layer, punch does not directly contact with workpiece, reduce the friction between workpiece and punch, and rubber layer quality is soft, it is out of shape after being squeezed, workpiece can be avoided in the process stretched by drawing crack.
Further, described stretching die also comprises the return spring in compressed state, and one end of described return spring is connected with described lower die holder, and the other end of described return spring is connected with the bottom of described discharging plate.
Return spring is owing in compressed state, can give discharging plate one power upwards, and rubber pad matches and jointly complete the work of discharging.
Further, described return spring is set in outside described connection post.
Connecting post can help return spring directed, avoids return spring to damage because being subject to strong pressure.
Further, described lower die holder is provided with blind hole, and described blind hole internally caves in by the upper surface of described lower die holder, the axial line of described blind hole and the described axis parallel being connected post, described rubber pad is positioned at described blind hole, and described connection post is inserted and filled in described blind hole.
After being inserted in blind hole by connection post, blind hole sidewall gives the effect connecting one, post guiding, and connection post is slided up and down along its axial line, avoids causing precise decreasing because side moves.
Further, being provided with backing plate between described upper die holder and described die, described die is connected with described upper die holder by described backing plate.
In stretching die working process, producing huge surging force between die and upper die holder, backing plate can cushion this kind of surging force.
Further, described lower die holder is also provided with fixing portion, described fixing portion is fixedly connected with described lower die holder, described fixing portion is provided with the 2nd through hole, the described axial line of the 2nd through hole and the axis parallel of described punch, described rubber die-cushion is positioned at described 2nd through hole, and described punch is inserted in described 2nd through hole.
Stretching die is in working process, and punch can move up and down along its axial line, and fixing portion can improve the stability that punch is connected with lower die holder, punch can also be helped to lead, it is to increase working accuracy simultaneously.
Further, it is provided with strengthening rib between the outer wall of described die and described upper die holder.
During stretching, the cavity of die can need part constraint power of tensile deformation to workpiece, and accordingly, workpiece and punch will give die outside tension force, and strengthening rib can make the structure of die more stable, increases its work-ing life.
Further, described stretching die also comprises guide pillar, and described guide pillar is arranged between described upper die holder and described lower die holder, and described guide pillar is fixedly connected with described lower die holder, and described guide pillar and described upper die holder are slidably connected.
Guide pillar can control the direction of upper die holder motion, prevents die holder from deviation occur in the process moved downward.
Compared with prior art, the useful effect that the utility model realizes is:
The punch of the stretching die that the utility model provides is arranged on lower die holder, and rubber die-cushion is set between punch and lower die holder, when die is pressed on workpiece, workpiece can give punch pressure, and rubber die-cushion is compressed, and the reactive force of workpiece is increased by punch gradually subsequently, make workpiece deformation, like this before workpiece deformation, between punch and workpiece, there is certain buffering, avoid workpiece and punch rigid collision to cause workpiece to break.
Accompanying drawing explanation
Fig. 1 shows the schematic diagram of the real stretching die provided of the utility model.
In figure:
Upper die holder 101; Mould handle 102; Die 103; Backing plate 104; Strengthening rib 105; Guide pillar 106; Lower die holder 107; Return spring 108; Rubber pad 109; Fixing portion 110; Rubber die-cushion 111; Punch 112; Blind hole 113; Connect post 114; Rubber layer 115; Discharging plate 116.
Embodiment
In punching production, when the thin material of stamping-out, the stamping-out gap of these materials, is commonly referred to gapless punching press all at 0.01mm once. Require working portion dimensional precision and the surface quality height of punching die, when making stretching die, difficulty is very big like this, manufacture the cost height of stretching die, and when punching press, owing to the brute force of stretching die makes workpiece deformation, producing huge pressure between stretching die and workpiece, this kind of pressure may make workpiece with bigger burr, even by workpiece avulsion, produce waste product.
In order to make the problems referred to above improve, the utility model provides a kind of stretching die, comprise die holder, die, mould handle, lower die holder, punch and rubber die-cushion, described mould handle is fixedly connected with described upper die holder, described mould handle is positioned at the top of described upper die holder, and described die is fixedly connected on described upper die holder, and described rubber die-cushion is fixedly connected with described lower die holder, described punch is fixedly connected with described rubber die-cushion, and described rubber die-cushion is between described punch and described lower die holder. The punch of the stretching die that the utility model provides is arranged on lower die holder, and rubber die-cushion is set between punch and lower die holder, when die is pressed on workpiece, workpiece can give punch pressure, and rubber die-cushion is compressed, and the reactive force of workpiece is increased by punch gradually subsequently, make workpiece deformation, like this before workpiece deformation, between punch and workpiece, there is certain buffering, avoid workpiece and punch rigid collision to cause workpiece to break.
Below by specific embodiment son and by reference to the accompanying drawings the utility model is described in further detail.
For making the object of the utility model embodiment, technical scheme and advantage clearly, above in conjunction with the accompanying drawing in the utility model embodiment, carry out describing clearly and completely to the technical scheme in the utility model embodiment, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments. The assembly of the utility model embodiment usually describing in accompanying drawing herein and illustrating can be arranged with various different configuration and design.
Therefore, the detailed description of the above embodiment of the present utility model to providing in the accompanying drawings the claimed scope of the present utility model of not intended to be limiting, but only represent selected embodiment of the present utility model. Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
It should be noted that: similar label and letter accompanying drawing below represents similar item, therefore, once a certain Xiang Yi accompanying drawing is defined, then do not need it carries out definition further and explains in accompanying drawing subsequently.
In description of the present utility model, it should be noted that, term " " center ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " interior ", it is based on orientation shown in the drawings or position relation that the orientation of the instruction such as " outward " or position are closed, or this practicality novel product orientation usually put or position relation when using, it is only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device referred to or element must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model. in addition, term " first ", " the 2nd ", " the 3rd " etc. are only for distinguishing description, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ", " installation ", " being connected ", " connection " should be interpreted broadly, such as, it is possible to be fixedly connected with, can also be removably connect, or connect integratedly; Can be mechanically connected, it is also possible to be electrical connection; Can be directly be connected, it is also possible to be indirectly connected by intermediary, it is possible to be the connection of two element internals. For the ordinary skill in the art, it is possible to particular case understands the concrete implication of above-mentioned term in the utility model.
With reference to Fig. 1, the stretching die that the utility model provides comprises die holder 101, die 103, mould handle 102, lower die holder 107, punch 112 and rubber die-cushion 111, mould handle 102 is fixedly connected with upper die holder 101, mould handle 102 is positioned at the top of die holder 101, die 103 is fixedly connected on die holder 101, and die 103 is positioned at the bottom of die holder 101, rubber die-cushion 111 is fixedly connected with lower die holder 107, punch 112 is fixedly connected with rubber die-cushion 111, and rubber die-cushion 111 is between punch 112 and lower die holder 107.
The utility model provide stretching die adopt punch 112 under, die 103 is in upper setting, punch 112 is arranged on lower die holder 107, a rubber die-cushion 111 is installed simultaneously between punch 112 and lower die holder 107, die 103 with on die holder 101 press under time, die 103 contacts with workpiece, move down with workpiece simultaneously, workpiece contacts with punch 112, punch 112 is had a downward pressure by workpiece, owing to the bottom of punch 112 is connected with rubber die-cushion 111, rubber die-cushion 111 has elasticity, can be out of shape after being subject to pressure, therefore punch 112 can move down one end distance under the pressure of workpiece, the power being extruded along with rubber die-cushion 111 is increasing, rubber die-cushion 111 gives the bounce of punch 112 also increasing, when bounce reaches to a certain degree, workpiece is subject to the downward pressure of die 103 of top and lower section punch 112 pressure upwards simultaneously, workpiece can start distortion along the profile of punch 112, finally complete the action stretched.
Lower die holder 101 can also install discharging plate 116, arrange many between discharging plate 116 with lower die holder 107 and it is connected post 114 and rubber pad 109, connecting post 114 erects to setting, make its direction of axis line parallel with the direction of axis line of punch 112, rubber pad 109 is arranged on the bottom connecting post 114, rubber pad 109 is fixedly connected with lower die holder 107 simultaneously, rubber pad 109 is made at lower die holder 107 and to connect between post 114, the top connecting post 114 is fixedly connected with discharging plate 116, being provided with the first through hole in the middle of discharging plate 116, punch 112 passes from the first through hole. After workpiece pressure is lower, discharging plate 116 moves downward with workpiece, and punch 112 stretches out from the first through hole, workpiece is stretched, after completing stretching action, die 103 returns to top with upper die holder 101, and workpiece is stuck on punch 112, at this moment, the rubber pad 109 band post 114 that is dynamically connected moves up together with discharging plate 116, is upwards pushed up by workpiece, workpiece and punch 112 are departed from, complete the work of discharging, save the time taking off workpiece.
Lower die holder 107 can also arrange blind hole 113, blind hole 113 by the upper surface of lower die holder 107 to its inner recess, the axial line of blind hole 113 and the axis parallel being connected post 114, rubber pad 109 is positioned at blind hole 113, connect post 114 to insert in dress blind hole 113, make connection post 114 coaxial with blind hole 113. After being inserted into by connection post 114 in blind hole 113, blind hole 113 sidewall gives the effect connecting 114 1, post guiding, and connection post 114 is slided up and down along its axial line, avoids causing precise decreasing because side moves.
Can also arranging return spring 108 between discharging plate 116 and lower die holder 107, one end of return spring 108 is connected with lower die holder 107, and the other end of return spring 108 is connected with the bottom of discharging plate 116. Return spring 108 is owing in compressed state, can give discharging plate 116 1 power upwards, and rubber pad 109 matches and jointly complete the work of discharging. Return spring 108 can be set in connect outside post 114. Connecting post 114 can help return spring 108 directed, avoids return spring 108 to damage because being subject to strong pressure.
One layer of rubber layer 115 can be set at the top of discharging plate 116, elastic deformation can be there is in rubber layer 115 by after external force, when workpiece is stretched, die 103 can with under pressure at a high speed, after the top of discharging plate 116 arranges rubber layer 115, can effectively slow down the surging force between workpiece and discharging plate 116 and punch 112, ensure that workpiece can not be out of shape or displacement; Punch 112 is in the process stretched by workpiece, punch 112 directly contacts with workpiece, and a part for workpiece is up pushed up, and makes workpiece deformation, the part that during stretching, the sidewall of punch 112 and workpiece are stretched acutely rubs, may by workpiece drawing crack, after arranging rubber layer 115, punch 112 does not directly contact with workpiece, reduce the friction between workpiece and punch 112, and rubber layer 115 quality is soft, it is out of shape after being squeezed, workpiece can be avoided in the process stretched by drawing crack.
Can arranging backing plate 104 between upper die holder 101 and die 103, die 103 is connected with upper die holder 101 by backing plate 104. In stretching die working process, producing huge surging force between die 103 and upper die holder 101, backing plate 104 can cushion this kind of surging force.
Strengthening rib 105 can also be provided with between the outer wall of die 103 and upper die holder 101, during stretching, the cavity of die 103 can need part constraint power of tensile deformation to workpiece, accordingly, workpiece and punch 112 will give die 103 1 outside tension force, strengthening rib 105 can make the structure of die 103 more stable, increases its work-ing life.
Can also arranging fixing portion 110 on lower die holder 107, fixing portion 110 is fixedly connected with lower die holder 107, and fixing portion 110 is provided with the 2nd through hole, and the 2nd through hole is coaxial with punch 112, and rubber die-cushion 111 is positioned at the 2nd through hole, and punch 112 is inserted in the 2nd through hole. Stretching die is in working process, and punch 112 can move up and down along its axial line, and fixing portion 110 can improve the stability that punch 112 is connected with lower die holder 107, punch 112 can also be helped to lead, it is to increase working accuracy simultaneously.
Stretching die also comprises guide pillar 106, and guide pillar 106 is arranged between die holder 101 and lower die holder 107, and guide pillar 106 is fixedly connected with lower die holder 107, and guide pillar 106 and upper die holder 101 are slidably connected. Guide pillar 106 can control the direction that upper die holder 101 moves, and prevents die holder 101 from deviation occur in the process moved downward.
In sum, the punch of the stretching die that the utility model provides is arranged on lower die holder, and rubber die-cushion is set between punch and lower die holder, when die is pressed on workpiece, workpiece can give punch pressure, rubber die-cushion is compressed, the reactive force of workpiece is increased by punch gradually subsequently, makes workpiece deformation, like this before workpiece deformation, there is certain buffering between punch and workpiece, avoid workpiece and punch rigid collision to cause workpiece to break.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations. All within spirit of the present utility model and principle, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a stretching die, it is characterized in that, comprise die holder, die, mould handle, lower die holder, punch and rubber die-cushion, described mould handle is fixedly connected with described upper die holder, described mould handle is positioned at the top of described upper die holder, and described die is fixedly connected on described upper die holder, and described rubber die-cushion is fixedly connected with described lower die holder, described punch is fixedly connected with described rubber die-cushion, and described rubber die-cushion is between described punch and described lower die holder.
2. stretching die according to claim 1, it is characterized in that, described stretching die also comprises discharging plate, many connection posts and rubber pad, described rubber pad is fixedly connected with described lower die holder, described connection post is fixedly connected with described rubber pad, the axial line of described connection post and the axis parallel of described punch, and described rubber pad is between described connection post and described lower die holder; Described discharging plate is connected post with described many and is fixedly connected with, it is provided with the first through hole in the middle of described discharging plate, the axial line of described first through hole and the axis parallel of described punch, described punch can stretch out described first through hole along the direction towards described die, and the upper surface of described discharging plate exceeds the end face of described punch.
3. stretching die according to claim 2, it is characterised in that, described discharging plate is also provided with rubber layer, and described rubber layer is positioned at the top of described discharging plate.
4. stretching die according to claim 3, it is characterised in that, described stretching die also comprises the return spring in compressed state, and one end of described return spring is connected with described lower die holder, and the other end of described return spring is connected with the bottom of described discharging plate.
5. stretching die according to claim 4, it is characterised in that, described return spring is set in outside described connection post.
6. stretching die according to claim 5, it is characterized in that, described lower die holder is provided with blind hole, described blind hole internally caves in by the upper surface of described lower die holder, the axial line of described blind hole and the described axis parallel being connected post, described rubber pad is positioned at described blind hole, and described connection post is inserted in described blind hole.
7. stretching die according to the arbitrary item of claim 1 to 6, it is characterised in that, it is provided with backing plate between described upper die holder and described die, described die is connected with described upper die holder by described backing plate.
8. stretching die according to claim 7, it is characterized in that, described lower die holder is also provided with fixing portion, described fixing portion is fixedly connected with described lower die holder, described fixing portion is provided with the 2nd through hole, the described axial line of the 2nd through hole and the axis parallel of described punch, described rubber die-cushion is positioned at described 2nd through hole, and the bottom of described punch is positioned at described 2nd through hole.
9. stretching die according to claim 8, it is characterised in that, it is provided with strengthening rib between the outer wall of described die and described upper die holder.
10. stretching die according to claim 9; it is characterized in that, described stretching die also comprises guide pillar, and described guide pillar is arranged between described upper die holder and described lower die holder; described guide pillar is fixedly connected with described lower die holder, and described guide pillar and described upper die holder are slidably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520908158.9U CN205270566U (en) | 2015-11-16 | 2015-11-16 | Stretching die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520908158.9U CN205270566U (en) | 2015-11-16 | 2015-11-16 | Stretching die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205270566U true CN205270566U (en) | 2016-06-01 |
Family
ID=56055187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520908158.9U Expired - Fee Related CN205270566U (en) | 2015-11-16 | 2015-11-16 | Stretching die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205270566U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215198A (en) * | 2015-11-16 | 2016-01-06 | 重庆持恒模具有限公司 | Stretching die |
| CN106583567A (en) * | 2017-02-13 | 2017-04-26 | 李志东 | Anti-deformation machining die |
| CN107568811A (en) * | 2017-10-12 | 2018-01-12 | 湖州梦琪服饰有限公司 | A kind of women underwear cotton cup formation device |
| CN107594650A (en) * | 2017-10-12 | 2018-01-19 | 湖州梦琪服饰有限公司 | A kind of device for women underwear cotton cup formation |
-
2015
- 2015-11-16 CN CN201520908158.9U patent/CN205270566U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215198A (en) * | 2015-11-16 | 2016-01-06 | 重庆持恒模具有限公司 | Stretching die |
| CN106583567A (en) * | 2017-02-13 | 2017-04-26 | 李志东 | Anti-deformation machining die |
| CN106583567B (en) * | 2017-02-13 | 2018-10-09 | 安徽广美钢业有限公司 | A kind of anti-deformation machined die |
| CN107568811A (en) * | 2017-10-12 | 2018-01-12 | 湖州梦琪服饰有限公司 | A kind of women underwear cotton cup formation device |
| CN107594650A (en) * | 2017-10-12 | 2018-01-19 | 湖州梦琪服饰有限公司 | A kind of device for women underwear cotton cup formation |
| CN107594650B (en) * | 2017-10-12 | 2024-02-06 | 汕头市捷诺制衣实业有限公司 | Device for forming cotton cup of female underwear |
| CN107568811B (en) * | 2017-10-12 | 2024-03-15 | 青岛博览医疗科技有限公司 | Cotton cup forming device of women's underwear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20161116 |