CN202779414U - Deep drawing die with constant force blank pressing mechanism - Google Patents
Deep drawing die with constant force blank pressing mechanism Download PDFInfo
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- CN202779414U CN202779414U CN 201220339302 CN201220339302U CN202779414U CN 202779414 U CN202779414 U CN 202779414U CN 201220339302 CN201220339302 CN 201220339302 CN 201220339302 U CN201220339302 U CN 201220339302U CN 202779414 U CN202779414 U CN 202779414U
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- die
- deep drawing
- pull
- die shoe
- stretch
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Abstract
The utility model discloses a deep drawing die with a constant force blank pressing mechanism and relates to the deep drawing die. The deep drawing die with the constant force blank pressing mechanism comprises an upper die base, a lower die base and a die handle. A deep drawing protruding die is arranged on the upper surface of the lower die base. A deep drawing concave die is arranged on the lower surface of the upper die base. A drawing rod is arranged on the lower surface of the lower die base. Top plates and supporting plates are sequentially and movably connected with the surface of the drawing rod in a sleeved mode along the direction far away from the lower die base at intervals. The top plates are connected with the supporting plates through rubber pads. A discharging plate is movably connected with the outside the deep drawing protruding die in a sleeved mode. The discharging plate is movably connected with the top plate through discharging bolts. Discharging springs are connected with the outside the discharging bolts in a sleeved mode. Post rods are arranged at the corresponding position of the upper surface of the top plate relative to the deep drawing concave die. The post rods penetrate the lower die base and are sleeved in the discharging plate. The post rods can extend out of the upper surface of the discharging plate. The deep drawing die with the constant force blank pressing mechanism has the advantages of providing constant blank holder force for the deep drawing die, avoiding the phenomenon that the blank holder force increases along with the increasing of travel, greatly reducing the possible of deep-drawn parts dangerous section break and improving product surface quality.
Description
Technical field
The utility model relates to a kind of cupping tool, relates in particular to a kind of Drawing Die with constant pressure for blank holding mechanism.
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 a kind of cold stamping method for making of hollow object change 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 flanging mechanisms such as playing apical organ, 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 Drawing Die with constant pressure for blank holding mechanism, 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.
The technical solution of the utility model is: a kind of Drawing Die with constant pressure for blank holding mechanism, 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 along away from die shoe direction successively the interval movable sleeve be connected to top board and supporting plate, top board and supporting plate interconnect by rubber blanket; 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 the 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 the pull bar that top board and supporting plate are arranged between die shoe and the nut is surperficial.
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 the 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 rubber blanket.Cover top surface is provided with push rod, and push rod passes die shoe and is socketed in the stripper, the extended stripper upper surface of push rod.When pull and stretch begins, the compression of discharging spring stress, the rubber blanket under the top board also begins compression.Behind 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 the certain numerical value.Because discharging spring and rubber blanket 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 convenient and 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, shown in Fig. 1, a kind of Drawing Die with constant pressure for blank holding mechanism, 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 along away from die shoe 5 direction successively the interval movable sleeve be connected to top board 3 and supporting plate 1, top board 3 and supporting plate 1 interconnect by rubber blanket 2; Pull and stretch punch 11 outer movable sleeves are connected to stripper 6, stripper 6 is flexibly connected by unloading bolt 12 and top board 3, the unloading bolt 12 outer discharging springs 13 that are socketed with, top board 3 upper surfaces and pull and stretch die 7 corresponding positions are provided with push rod 4, push rod 4 passes die shoe 5 and is socketed in the stripper 6, push rod 4 extended stripper 6 upper surfaces.
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 the 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 the push pedal 8, push rod 10 and upper bolster 9 matched in clearance.
The above only is a kind of embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and obvious mode of texturing etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. Drawing Die with constant pressure for blank holding mechanism, 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 along away from die shoe direction successively the interval movable sleeve be connected to top board and supporting plate, top board and supporting plate interconnect by rubber blanket; 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 the stripper, the extended stripper upper surface of push rod.
2. the Drawing Die with constant pressure for blank holding mechanism 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 the nut.
3. the Drawing Die with constant pressure for blank holding mechanism 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 the push pedal, push rod and upper bolster matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339302 CN202779414U (en) | 2012-07-13 | 2012-07-13 | Deep drawing die with constant force blank pressing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339302 CN202779414U (en) | 2012-07-13 | 2012-07-13 | Deep drawing die with constant force blank pressing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202779414U true CN202779414U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220339302 Expired - Fee Related CN202779414U (en) | 2012-07-13 | 2012-07-13 | Deep drawing die with constant force blank pressing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202779414U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104096767A (en) * | 2014-07-23 | 2014-10-15 | 成都市龙泉驿区齐盛机械厂 | Composite stamping die |
| CN104128498A (en) * | 2014-06-26 | 2014-11-05 | 梧州恒声电子科技有限公司 | Progressive die structure for rear cover products |
| CN104858283A (en) * | 2015-05-26 | 2015-08-26 | 中南大学 | Punching device and method for automotive aluminum plate |
| CN107081379A (en) * | 2017-06-11 | 2017-08-22 | 武汉轻工大学 | A kind of cupping tool |
| CN116786687A (en) * | 2023-08-28 | 2023-09-22 | 江苏南方精工股份有限公司 | External-die external-pressing burr mechanism for internal flanging thrust washer |
-
2012
- 2012-07-13 CN CN 201220339302 patent/CN202779414U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128498A (en) * | 2014-06-26 | 2014-11-05 | 梧州恒声电子科技有限公司 | Progressive die structure for rear cover products |
| CN104096767A (en) * | 2014-07-23 | 2014-10-15 | 成都市龙泉驿区齐盛机械厂 | Composite stamping die |
| CN104858283A (en) * | 2015-05-26 | 2015-08-26 | 中南大学 | Punching device and method for automotive aluminum plate |
| CN107081379A (en) * | 2017-06-11 | 2017-08-22 | 武汉轻工大学 | A kind of cupping tool |
| CN116786687A (en) * | 2023-08-28 | 2023-09-22 | 江苏南方精工股份有限公司 | External-die external-pressing burr mechanism for internal flanging thrust washer |
| CN116786687B (en) * | 2023-08-28 | 2023-11-14 | 江苏南方精工股份有限公司 | External-die external-pressing burr mechanism for internal flanging thrust washer |
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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: 20130313 Termination date: 20130713 |