CN202984425U - Constant force blank pressing drawing die - Google Patents
Constant force blank pressing drawing die Download PDFInfo
- Publication number
- CN202984425U CN202984425U CN 201220538334 CN201220538334U CN202984425U CN 202984425 U CN202984425 U CN 202984425U CN 201220538334 CN201220538334 CN 201220538334 CN 201220538334 U CN201220538334 U CN 201220538334U CN 202984425 U CN202984425 U CN 202984425U
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- CN
- China
- Prior art keywords
- die
- pull
- die shoe
- stretch
- discharging
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- Expired - Fee Related
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- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The utility model discloses a constant force blank pressing drawing die and relates to a deep drawing die. The constant force blank pressing drawing die comprises an upper die base, a lower die base and a die shank. The upper surface of the lower die base is provide with a deep drawing convex die, and the lower surface of the upper die base is provided with a deep drawing concave die. The lower surface of the lower die base is provided with a draw rod. The surface of the draw rod is in sleeve connection with a top plate and a support plate in a movable mode at intervals in sequence along the direction which is away from the lower die base. The top plate and the support plate are mutually connected through a top piece spring. The outside of the deep draw convex die is in sleeve connection with a discharging plate in a movable mode. The discharging plate is connected with the top plate in a movable mode through a discharging bolt. The outside of the discharging bolt is in sleeve connection with a discharging spring. A corresponding position between the upper surface of the top plate and the deep draw concave die is provided with a top rod. The top rod penetrates through the lower die base and then is in sleeve connection with the inside of the discharging plate. The top rod can stretch out of the upper surface of the discharging plate. The constant force blank pressing drawing die can provide blank holder force for the deep draw die, so that the phenomenon that the blank holder force is expanded along with the increase of a travel is avoided and the possibility of the crack of a dangerous section of a deep-draw part is greatly reduced, and therefore the surface quality of products is improved and the constant force blank pressing drawing die is quite good in practical applicability.
Description
Technical field
The utility model relates to a kind of cupping tool, relates in particular to a kind of constant pressure for blank holding Drawing Die.
Background technology
Pull and stretch refers to the plate blank of definite shape is struck out the open hollow part of various shapes by Drawing Die, or further makes hollow object change a kind of cold stamping method for making of shape and size take the open hollow part as blank by pull and stretch.Can make the hollow object of flanged and other complicated shapes of Yuan Tong Xing ﹑ Qiu Xing ﹑ Zhui Xing ﹑ He Xing ﹑ Jie Ti Xing ﹑ by pull and stretch.In order to increase the pressure to blank, avoid drawing part wrinkling because of the material unstability, existing Drawing Die generally all is provided with and plays the flanging such as apical organ mechanism, when upper bolster is descending, punch compressing blank body, blank body compresses blank under the elastic force effect of binder spring, but the elastic force of the binder spring of existing blank body increases with the increase of stroke, increased the possibility that the drawing part critical section breaks, limit reduction when having limited the material pull and stretch, affect the surface quality of tensioning member, increased percent defective.
Summary of the invention
Problem for above-mentioned prior art existence, the utility model provides a kind of constant pressure for blank holding Drawing Die, can provide constant pressure-pad-force for Drawing Die, the phenomenon of having avoided pressure-pad-force to increase with the increase of stroke, greatly reduce the possibility that the drawing part critical section breaks, improve product surface quality, reduced percent defective, very practical.
The technical solution of the utility model is: a kind of constant pressure for blank holding Drawing Die, comprise upper bolster, die shoe and die shank, the die shoe upper surface is provided with the pull and stretch punch, the upper bolster lower surface is provided with the pull and stretch die, the die shoe lower surface is provided with pull bar, described pull bar surface is along being connected to top board and supporting plate away from the direction of die shoe interval movable sleeve successively, and top board and supporting plate interconnect by the head part spring; The outer movable sleeve of pull and stretch punch is connected to stripper, stripper is connected with roof movement by unloading bolt, and unloading bolt is socketed with the discharging spring outward, and the cover top surface position corresponding with the pull and stretch die is provided with push rod, push rod passes die shoe and is socketed in stripper, the extended stripper upper surface of push rod.
As preferably, the pull bar upper/lower terminal is respectively arranged with external screw thread, and the pull bar upper end is threaded with die shoe, and the lower end is connected with nut, and top board and supporting plate are arranged at the pull bar surface between die shoe and nut.
As preferably, upper bolster and die shoe adopt the Q235 steel to make, and are provided with push pedal in the die hole of pull and stretch die, are provided with push rod in push pedal, push rod and upper bolster matched in clearance.
The beneficial effects of the utility model are: stripper of the present utility model is connected with roof movement by unloading bolt, and unloading bolt is socketed with the discharging spring outward, and top board and supporting plate interconnect by the head part spring.Cover top surface is provided with push rod, and push rod passes die shoe and is socketed in stripper, the extended stripper upper surface of push rod.When pull and stretch begins, the compression of discharging spring stress, the head part spring under top board also begins compression.After the descending contact push rod of pull and stretch die, the discharging spring is no longer compressed, and pressure-pad-force can not change yet, and has reached pressure-pad-force and has reached substantially constant effect after certain numerical value.Because discharging spring and head part spring can precommpression, can be according to technological requirement, certain moment after pull and stretch begins, make pressure-pad-force reach maximum, then keep constant, avoided pressure-pad-force with the phenomenon that the increase of stroke increases, greatly reduce the possibility that the drawing part critical section breaks, improve product surface quality, reduced percent defective.Push pedal can be pushed down workpiece when pull and stretch, avoid tensioning member wrinkling, and is very practical.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As a kind of embodiment of the present utility model, as shown in Fig. 1, a kind of constant pressure for blank holding Drawing Die, comprise upper bolster 9, die shoe 5 and die shank, die shoe 5 upper surfaces are provided with pull and stretch punch 11, and upper bolster 9 lower surfaces are provided with pull and stretch die 7, and die shoe 5 lower surfaces are provided with pull bar 14, described pull bar 14 surfaces are along being connected to top board 3 and supporting plate 1 away from the direction of die shoe 5 interval movable sleeve successively, and top board 3 and supporting plate 1 interconnect by head part spring 2; The outer movable sleeve of pull and stretch punch 11 is connected to stripper 6, stripper 6 is flexibly connected by unloading bolt 12 and top board 3, the outer discharging spring 13 that is socketed with of unloading bolt 12, the position that top board 3 upper surfaces are corresponding with pull and stretch die 7 is provided with push rod 4, push rod 4 passes die shoe 5 and is socketed in stripper 6, extended stripper 6 upper surfaces of push rod 4.
In the present embodiment, as preferably, pull bar 14 upper/lower terminals are respectively arranged with external screw thread, and pull bar 14 upper ends are threaded with die shoe 5, and the lower end is connected with nut 15, and top board 3 and supporting plate 1 are arranged at pull bar 14 surfaces between die shoe 5 and nut 15.
In the present embodiment, as preferably, upper bolster 9 and die shoe 5 adopt the Q235 steel to make, good combination property, long service life.Be provided with push pedal 8 in the die hole of pull and stretch die 7, be provided with push rod 10 in push pedal 8, push rod 10 and upper bolster 9 matched in clearance.
Above a kind of constant pressure for blank holding Drawing Die provided by the utility model has been carried out detailed introduction, used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.To be possible to change of the present utility model and improvement, and can not exceed design and the scope that accessory claim can be stipulated.
Claims (3)
1. constant pressure for blank holding Drawing Die, comprise upper bolster, die shoe and die shank, the die shoe upper surface is provided with the pull and stretch punch, the upper bolster lower surface is provided with the pull and stretch die, it is characterized in that: the die shoe lower surface is provided with pull bar, described pull bar surface is along being connected to top board and supporting plate away from the direction of die shoe interval movable sleeve successively, and top board and supporting plate interconnect by the head part spring; The outer movable sleeve of pull and stretch punch is connected to stripper, stripper is connected with roof movement by unloading bolt, and unloading bolt is socketed with the discharging spring outward, and the cover top surface position corresponding with the pull and stretch die is provided with push rod, push rod passes die shoe and is socketed in stripper, the extended stripper upper surface of push rod.
2. constant pressure for blank holding Drawing Die according to claim 1, it is characterized in that: the pull bar upper/lower terminal is respectively arranged with external screw thread, the pull bar upper end is threaded with die shoe, and the lower end is connected with nut, and top board and supporting plate are arranged at the pull bar surface between die shoe and nut.
3. constant pressure for blank holding Drawing Die according to claim 1 and 2 is characterized in that: upper bolster and die shoe adopt the Q235 steel to make, and are provided with push pedal in the die hole of pull and stretch die, are provided with push rod in push pedal, push rod and upper bolster matched in clearance.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220538334 CN202984425U (en) | 2012-10-22 | 2012-10-22 | Constant force blank pressing drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220538334 CN202984425U (en) | 2012-10-22 | 2012-10-22 | Constant force blank pressing drawing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202984425U true CN202984425U (en) | 2013-06-12 |
Family
ID=48555648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220538334 Expired - Fee Related CN202984425U (en) | 2012-10-22 | 2012-10-22 | Constant force blank pressing drawing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202984425U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103861899A (en) * | 2014-03-14 | 2014-06-18 | 浙江双飞无油轴承股份有限公司 | Vertical shaping machine for shaping shaft sleeve with flange |
| CN109420707A (en) * | 2017-08-23 | 2019-03-05 | 河南奔马股份有限公司 | A kind of drawing die and its punch-pin |
| CN109590391A (en) * | 2018-12-20 | 2019-04-09 | 青岛海信模具有限公司 | A kind of Sheet drawing mold |
-
2012
- 2012-10-22 CN CN 201220538334 patent/CN202984425U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103861899A (en) * | 2014-03-14 | 2014-06-18 | 浙江双飞无油轴承股份有限公司 | Vertical shaping machine for shaping shaft sleeve with flange |
| CN109420707A (en) * | 2017-08-23 | 2019-03-05 | 河南奔马股份有限公司 | A kind of drawing die and its punch-pin |
| CN109590391A (en) * | 2018-12-20 | 2019-04-09 | 青岛海信模具有限公司 | A kind of Sheet drawing mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20131022 |