CN113414295A - Stretching die structure capable of stretching special-shaped piece and using method thereof - Google Patents
Stretching die structure capable of stretching special-shaped piece and using method thereof Download PDFInfo
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- CN113414295A CN113414295A CN202110831609.3A CN202110831609A CN113414295A CN 113414295 A CN113414295 A CN 113414295A CN 202110831609 A CN202110831609 A CN 202110831609A CN 113414295 A CN113414295 A CN 113414295A
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- Prior art keywords
- die
- female die
- core
- female
- stretching
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000003921 oil Substances 0.000 claims description 37
- 239000002994 raw material Substances 0.000 claims description 10
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 206010066054 Dysmorphism Diseases 0.000 claims description 2
- 239000000463 material Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/22—Deep-drawing with devices for holding the edge of the blanks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
本发明公开了一种可实现异形件拉伸的拉伸模具结构及其使用方法，包括下模底座，固定在所述下模底座上的凸模，滑动连接于所述凸模外侧的压边圈，以及位于所述凸模上方并与所述凸模以及所述压边圈对应的凹模，还包括凹模芯，所述凹模芯由所述凹模顶面中心向下贯穿所述凹模顶面并与所述凹模滑动连接。本发明的拉伸模具可实现异形件拉伸。
The invention discloses a drawing die structure capable of realizing the drawing of special-shaped parts and a method of using the same. a ring, and a female mold located above the male mold and corresponding to the male mold and the blank holder ring, further comprising a female mold core, the female mold core from the center of the top surface of the female mold downward through the The top surface of the concave die is slidably connected with the concave die. The drawing die of the present invention can realize the drawing of special-shaped parts.
Description
The technical field is as follows:
the invention relates to the field of dies, in particular to a stretching die structure capable of realizing stretching of a special-shaped piece and a using method thereof.
Background art:
drawing is an important forming method of metal plates, and in a conventional drawing die, a female die is arranged on an upper die part, and a male die is fixed on a lower die seat. At present, the stretching is generally an integral concave die, so that the material cannot flow when the stretching die stretches reversely, and the product cannot be realized. Therefore, how to realize the stretching of the special-shaped piece is a technical problem to be solved in the field.
The invention content is as follows:
the invention aims to solve the technical problem of providing a stretching die structure capable of realizing stretching of a special-shaped piece.
The technical scheme includes that the stretching die structure capable of achieving special-shaped part stretching comprises a lower die base, a male die fixed on the lower die base, a blank holder connected to the outer side of the male die in a sliding mode, a female die located above the male die and corresponding to the male die and the blank holder, and a female die core, wherein the female die core penetrates through the top surface of the female die from the center of the top surface of the female die downwards and is connected with the female die in a sliding mode, the female die core is driven by a female die oil cylinder located above the female die core, and the female die oil cylinder is fixed above the female die.
According to the preferable technical scheme, the die comprises a fixing frame, wherein the top surface of a female die of the fixing frame is fixedly connected, a female die oil cylinder is fixed on the fixing frame, and a hydraulic rod of the female die oil cylinder is fixedly connected with a female die core.
The invention also provides a drawing method of the drawing die structure capable of realizing drawing of the special-shaped piece, which comprises the following steps,
firstly, placing a drawing die on an oil press, adjusting the position of an ejector rod, adjusting the pressure parameter of the oil press when the ejector rod is adjusted to be not shaken to be a standard, then jacking a blank holder to be flush with a male die, and placing a raw material on the blank holder;
secondly, the concave mold core is pushed out downwards under the driving of a concave mold oil cylinder, so that the concave mold core is flush with the lower plane of the concave mold;
thirdly, the oil press drives the female die to move downwards and to be matched with the blank holder, stretching is started, and when the female die core is abutted against the male die, the female die core is ensured to effectively protect raw materials in a region corresponding to the female die core from flowing;
and step four, after the stretching is finished, returning the female die, and enabling the female die core to reset for the next stretching by oil inlet work of the female die oil cylinder.
The female die oil cylinder controls the flow of hydraulic oil by adjusting a valve switch to adjust the speed of pressure on the moving of the material in stretching to effectively control the depth, the descending speed of a press is used for adjusting, and the female die oil cylinder is matched with the male die to push against the male die, so that the plate material is uniformly fed according to the shape of the male die in the stretching.
Furthermore, the raw material is a cold-rolled sheet, and a plastic film is laid on the cold-rolled sheet.
Compared with the prior art, the invention has the following advantages after adopting the structure: the die core needing to be reversely jacked is made into a slidable structure in a female die of a drawing die, a female die oil cylinder is connected with the female die core (a hydraulic cylinder drives hydraulic oil into a single oil cylinder when the female die returns and seals an oil return valve to keep the hydraulic cylinder at a required pressure), the female die oil cylinder plays a role in pressing material flow in the pressing process, the material in the shape of reversely jacking and drawing of the drawing die can be fixed between a concave die and a convex die and cannot flow, and therefore the problem that the drawing of a product cannot be realized in special-shaped drawing (deep drawing) is solved.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
The specific implementation mode is as follows:
the invention is further described with reference to the following figures and detailed description:
as shown in fig. 1, a can realize tensile drawing die structure of dysmorphism piece, including lower mould base 1, fix terrace die 2 on the lower mould base, sliding connection in blank holder 3 in the terrace die 2 outside, and be located 2 tops of terrace die and with terrace die 2 and the die 4 that blank holder 3 corresponds, the periphery of die lower surface is identical with the periphery of blank holder upper surface, still includes female mold core 5, female mold core 5 by downward running through in die top surface center die top surface and with die sliding connection, female mold core 5 is driven by the die hydro-cylinder 6 that is located female mold core top, and die hydro-cylinder 6 passes through the fixed screw to be fixed the die top. Specifically, on die hydro-cylinder 6 was fixed in mount 7, mount 7 included a connecting plate, and connecting column is provided with respectively in connecting plate below both sides, and fixed surface is connected on connecting column lower extreme and the die, and fixed mounting has the fixed plate in the centre of connecting plate still, and fixed plate upper end butt is at the connecting plate lower surface, and die hydro-cylinder 6 is fixed in on the fixed plate, the hydraulic stem of die hydro-cylinder with die core fixed connection.
The male die is arranged in the blank holder and is in vertical sliding connection with the blank holder, a guide part is arranged between the male die and the blank holder, the guide part is arranged on two sides of the male die, the guide part is a guide plate, the guide plate can be detachably connected on two sides of the male die in order to facilitate installation and disassembly of the guide plate, and the guide plate can be connected on two sides of the male die through screws or pins as an improvement of the embodiment. The guide is provided by conventional means of a drawing die, and the corresponding structure is not shown in the figure.
In addition, in order to enable the concave mold core to slide up and down in the concave mold more stably, the two opposite sides of the concave mold core are provided with positioning convex ribs, correspondingly, the edges of the through holes on the top surface of the concave mold are correspondingly provided with positioning grooves matched with the convex ribs, and therefore the concave mold core can play a role in limiting when sliding up and down.
Based on the structure, the drawing method of the drawing die structure capable of drawing the special-shaped piece comprises the following steps,
firstly, placing a drawing die on an oil press, adjusting the position of an ejector rod, adjusting the pressure parameter of the oil press when the ejector rod is adjusted to be not shaken to be a standard, then jacking a blank holder to be flush with a male die, and placing a raw material on the blank holder;
secondly, the concave mold core is pushed out downwards under the driving of a concave mold oil cylinder, so that the concave mold core is flush with the lower plane of the concave mold;
thirdly, the oil press drives the female die to move downwards and to be matched with the blank holder, stretching is started, and when the female die core is abutted against the male die, the female die core is ensured to effectively protect raw materials in a region corresponding to the female die core from flowing;
and step four, after the stretching is finished, returning the female die, and enabling the female die core to reset for the next stretching by oil inlet work of the female die oil cylinder.
The female die oil cylinder controls the flow of hydraulic oil by adjusting a valve switch to adjust the speed of pressure on the moving of the material in stretching to effectively control the depth, the descending speed of a press is used for adjusting, and the female die oil cylinder is matched with the male die to push against the male die, so that the plate material is uniformly fed according to the shape of the male die in the stretching.
In the embodiment, the battery box of the mower is used as a stretch forming object, the inner cavity of the female die is matched with the outline of the battery box, the raw material is a cold-rolled sheet, and a plastic film is laid on the cold-rolled sheet and can play a role in lubrication.
Compared with the stretching die in the prior art, the structure has the advantages that the die core needing to be reversely jacked is made into a slidable structure in the die of the stretching die, the die core is connected with the die oil cylinder (the hydraulic cylinder drives hydraulic oil into the single oil cylinder in the return stroke of the die, the oil return valve is sealed, the hydraulic cylinder is kept at the required pressure), the die oil cylinder plays a role in pressing material flowing in the pressing process, the material in the shape of reversely jacked stretching of the stretching die can be fixed between the concave-convex dies to be incapable of flowing, and the condition that the product cannot be stretched in special-shaped stretching (deep stretching) is achieved.
The foregoing is illustrative of the preferred embodiments of the present invention only and is not to be construed as limiting the claims. All equivalent structures or equivalent process changes made by using the contents of the specification and the drawings of the invention are included in the scope of the patent protection of the invention.
Claims (5)
1. The utility model provides a can realize tensile drawing die structure of dysmorphism piece, includes the lower mould base, fixes terrace die on the lower mould base, sliding connection in the blank holder in the terrace die outside, and be located the terrace die top and with the terrace die and the die that the blank holder corresponds, its characterized in that: still include the female die core, the female die core by die top surface center runs through downwards the die top surface and with die sliding connection, the female die core is by the die hydro-cylinder drive that is located the female die core top, and the die hydro-cylinder is fixed the die top.
2. The drawing die structure capable of realizing drawing of a special-shaped piece according to claim 1, characterized in that: the die comprises a die body and is characterized by further comprising a fixing frame, wherein the fixing frame is fixedly connected with the top surface of a female die, a female die oil cylinder is fixed on the fixing frame, and a hydraulic rod of the female die oil cylinder is fixedly connected with a female die core.
3. A drawing method of a drawing die structure capable of realizing drawing of a special-shaped piece according to claim 1, characterized by comprising the following steps,
firstly, placing a drawing die on an oil press, adjusting the position of an ejector rod, adjusting the pressure parameter of the oil press, then jacking a blank holder to be flush with a male die, and placing a raw material on the blank holder;
secondly, the concave mold core is pushed out downwards under the driving of a concave mold oil cylinder, so that the concave mold core is flush with the lower plane of the concave mold;
thirdly, the oil press drives the female die to move downwards and to be matched with the blank holder, stretching is started, and when the female die core is abutted against the male die, the female die core is ensured to effectively protect raw materials in a region corresponding to the female die core from flowing;
and step four, after the stretching is finished, returning the female die, and enabling the female die core to reset for the next stretching by oil inlet work of the female die oil cylinder.
4. The drawing method of the drawing die structure capable of drawing a profile-shaped member according to claim 1, wherein: the female die oil cylinder controls the flow of hydraulic oil by adjusting a valve switch to adjust the pressure to adapt to the walking speed of the raw material in stretching.
5. The drawing method of the drawing die structure capable of drawing a profile-shaped member according to claim 1, wherein: the raw material is cold-rolled sheet, and a plastic film is laid on the cold-rolled sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110831609.3A CN113414295A (en) | 2021-07-22 | 2021-07-22 | Stretching die structure capable of stretching special-shaped piece and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110831609.3A CN113414295A (en) | 2021-07-22 | 2021-07-22 | Stretching die structure capable of stretching special-shaped piece and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113414295A true CN113414295A (en) | 2021-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110831609.3A Pending CN113414295A (en) | 2021-07-22 | 2021-07-22 | Stretching die structure capable of stretching special-shaped piece and using method thereof |
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| CN (1) | CN113414295A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116809751A (en) * | 2023-08-30 | 2023-09-29 | 吴江市天富金属制品有限公司 | Body-building equipment chassis stretch forming device and forming process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105013918A (en) * | 2015-07-02 | 2015-11-04 | 奇瑞汽车股份有限公司 | Complicated surface plate drawing mold and control method thereof |
| CN205020640U (en) * | 2015-08-27 | 2016-02-10 | 上海千缘汽车车身模具有限公司 | Draw to take and press material core and prevent that finished piece warp structure |
| CN206435666U (en) * | 2017-01-19 | 2017-08-25 | 重庆长安汽车股份有限公司 | Beam-like part mould with delay function |
| CN107755510A (en) * | 2016-08-23 | 2018-03-06 | 天津星原汽车零部件有限公司 | A kind of stretching die part delaying mould-release equipment |
| CN215392057U (en) * | 2021-07-22 | 2022-01-04 | 浙江道和机械股份有限公司 | Can realize tensile drawing die structure of dysmorphism piece |
-
2021
- 2021-07-22 CN CN202110831609.3A patent/CN113414295A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105013918A (en) * | 2015-07-02 | 2015-11-04 | 奇瑞汽车股份有限公司 | Complicated surface plate drawing mold and control method thereof |
| CN205020640U (en) * | 2015-08-27 | 2016-02-10 | 上海千缘汽车车身模具有限公司 | Draw to take and press material core and prevent that finished piece warp structure |
| CN107755510A (en) * | 2016-08-23 | 2018-03-06 | 天津星原汽车零部件有限公司 | A kind of stretching die part delaying mould-release equipment |
| CN206435666U (en) * | 2017-01-19 | 2017-08-25 | 重庆长安汽车股份有限公司 | Beam-like part mould with delay function |
| CN215392057U (en) * | 2021-07-22 | 2022-01-04 | 浙江道和机械股份有限公司 | Can realize tensile drawing die structure of dysmorphism piece |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116809751A (en) * | 2023-08-30 | 2023-09-29 | 吴江市天富金属制品有限公司 | Body-building equipment chassis stretch forming device and forming process |
| CN116809751B (en) * | 2023-08-30 | 2023-11-21 | 吴江市天富金属制品有限公司 | Body-building equipment chassis stretch forming device and forming process |
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