TWI692381B - Stamping device - Google Patents
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- TWI692381B TWI692381B TW108122637A TW108122637A TWI692381B TW I692381 B TWI692381 B TW I692381B TW 108122637 A TW108122637 A TW 108122637A TW 108122637 A TW108122637 A TW 108122637A TW I692381 B TWI692381 B TW I692381B
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Abstract
一種沖壓裝置,適用於將一金屬料片沖製成呈圓形片狀的一鈑件,該沖壓裝置是包含一母模、一壓料板、一沖頭,一反沖頭。該母模具有朝上且用以承載該金屬料片的一承載面,以及自該承載面向下形成且截面呈圓形的一模穴。該壓料板可上下移動地設於該母模上方並用以壓抵於該金屬料片,該壓料板具有對應於該模穴的一通孔。該沖頭可上下移動地設於該母模的模穴上方以用於將該金屬料片沖製成該鈑件,該沖頭具有朝下並呈與該模穴對應的圓形的一沖壓面,該沖壓面向上地形成有一圓形凹槽,該圓形凹槽的中心位於該沖壓面的中心處。 A stamping device is suitable for punching a metal sheet into a circular sheet-shaped sheet. The stamping device includes a mother die, a pressing plate, a punch, and a counter punch. The female mold has a bearing surface facing upward and used to carry the metal sheet, and a cavity formed from the bearing surface downward and having a circular cross section. The pressing plate is movably provided above the mother mold and used to press against the metal sheet. The pressing plate has a through hole corresponding to the cavity. The punch is movably arranged above the cavity of the mother die for punching the metal sheet into the sheet metal part, and the punch has a downward punch and a circular punch corresponding to the cavity A circular groove is formed upward on the pressing surface, and the center of the circular groove is located at the center of the pressing surface.
Description
本發明是有關於一種沖壓裝置,特別是指一種適用於將金屬料片沖製成鈑件的沖壓裝置。 The invention relates to a stamping device, in particular to a stamping device suitable for punching metal sheets into sheet parts.
一般薄型金屬鈑件如果採用研磨的方式加工,因有內應力釋放的問題,尤其是大面積的鈑件很難達成平坦要求。如果改用下料沖模製作,常因回彈翹曲也同樣難有平坦的製品,且其截面的光滑度也不盡理想。因此近來針對薄型金屬鈑件常使用精密下料的沖壓裝置200沖製而成,如圖1所示,該種沖壓裝置200一般具有一母模201、一壓料板202、一沖頭203,以及一反沖頭204,藉由該壓料板202與該反沖頭204在沖製過程中壓住金屬料片30,能使沖製而成的薄形金屬鈑件40的斷面的垂直度與光滑度提升,並且使該薄形金屬鈑件40較為平坦。然而,由於在沖壓後該薄形金屬鈑件40仍會因應力釋放而使其中央部分朝反沖頭回彈,如圖2所示,因此當對大面積的薄形金屬鈑件40的平坦度有高度要求時,前述沖壓裝置200所沖製的成品可能仍無法滿足需求而需對成品進行二次加工以符合要求。
Generally, if thin metal sheet parts are processed by grinding, due to the problem of internal stress relief, it is difficult to achieve flatness requirements especially for large-area sheet parts. If the blanking die is used instead, it is often difficult to have a flat product due to rebound warpage, and the smoothness of the cross section is not ideal. Therefore, recently for thin metal sheet parts, a precision
因此,本發明之其中一目的,即在提供一種能改善先前技術中至 少一缺點的沖壓裝置。 Therefore, one of the objects of the present invention is to provide a way to improve the prior art One less punching device.
於是,本發明沖壓裝置在一些實施態樣中,適用於將一金屬料片沖製成呈圓形片狀的一鈑件,該沖壓裝置是包含一母模、一壓料板、一沖頭,一反沖頭。該母模具有朝上且用以承載該金屬料片的一承載面,以及自該承載面向下形成且截面呈圓形的一模穴。該壓料板可上下移動地設於該母模上方並用以壓抵於該金屬料片,該壓料板具有對應於該模穴的一通孔。該沖頭可上下移動地設於該母模的模穴上方以用於將該金屬料片沖製成該鈑件,該沖頭具有朝下並呈與該模穴對應的圓形的一沖壓面,該沖壓面向上地形成有一圓形凹槽,該圓形凹槽的中心位於該沖壓面的中心處。該反沖頭可上下移動地設於該母模的模穴內,並用於在沖製過程中與該沖頭共同夾持該金屬料片。 Therefore, in some embodiments, the stamping device of the present invention is suitable for punching a metal sheet into a circular piece. The stamping device includes a mother die, a material pressing plate, and a punch , A counter punch. The female mold has a bearing surface facing upward and used to carry the metal sheet, and a cavity formed from the bearing surface downward and having a circular cross section. The pressing plate is movably provided above the mother mold and used to press against the metal sheet. The pressing plate has a through hole corresponding to the cavity. The punch is movably arranged above the cavity of the mother die for punching the metal sheet into the sheet metal part, and the punch has a downward punch and a circular punch corresponding to the cavity A circular groove is formed upward on the pressing surface, and the center of the circular groove is located at the center of the pressing surface. The counter-punching head is movably arranged in the cavity of the mother die, and is used for clamping the metal material sheet with the punch during the punching process.
在一些實施態樣中,該沖頭還具有自該圓形凹槽向下形成的至少一環狀凸部,該環狀凸部的中心位於該沖壓面的中心處。 In some embodiments, the punch further has at least one annular convex portion formed downward from the circular groove, and the center of the annular convex portion is located at the center of the punching surface.
在一些實施態樣中,該環狀凸部的高度小於該圓形凹槽的深度。 In some embodiments, the height of the annular convex portion is smaller than the depth of the circular groove.
在一些實施態樣中,定義該金屬料片的厚度為t,且該沖頭的沖壓面的半徑為R,該圓形凹槽的周緣與該沖壓面的周緣的距離介於3t與0.15R之間。 In some embodiments, the thickness of the metal sheet is defined as t, and the radius of the punching surface of the punch is R, and the distance between the periphery of the circular groove and the periphery of the stamping surface is between 3t and 0.15R between.
在一些實施態樣中,該圓形凹槽的深度與該環狀凸部的高度的差值介於0.25t至1.75t之間。 In some embodiments, the difference between the depth of the circular groove and the height of the annular convex portion is between 0.25t and 1.75t.
在一些實施態樣中,該環狀凸部的內徑小於0.25R,且外徑大於0.5R。 In some embodiments, the inner diameter of the annular convex portion is less than 0.25R, and the outer diameter is greater than 0.5R.
在一些實施態樣中,該壓料板的底面圍繞該通孔地向下形成有用以壓抵於該金屬料片的一壓料環。 In some embodiments, the bottom surface of the clamping plate is formed downwardly around the through hole to form a clamping ring for pressing against the metal web.
在一些實施態樣中,該壓料環的橫截面為倒三角形。 In some embodiments, the cross section of the pressure ring is an inverted triangle.
本發明至少具有以下功效:藉由該沖頭的沖壓面上的圓形凹槽,使該金屬料片在沖壓過程中能有朝向該沖頭撓曲的空間,以使沖製成的該鈑件在應力釋放而朝反沖頭回彈後整體結構較為平坦,以減少二次加工的需求。 The present invention has at least the following effects: the circular groove on the punching surface of the punch enables the metal sheet to have a space to deflect toward the punch during the punching process, so that the punched sheet After the stress is released and the component rebounds toward the counter-punch, the overall structure is relatively flat to reduce the need for secondary processing.
10:沖壓裝置 10: Stamping device
1:母模 1: Female mold
11:承載面 11: bearing surface
12:模穴 12: mold cavity
2:壓料板 2: pressure plate
21:通孔 21: through hole
22:壓料環 22: Press ring
3:沖頭 3: punch
31:沖壓面 31: Stamping surface
32:圓形凹槽 32: Round groove
33:環狀凸部 33: Ring convex part
4:反沖頭 4: backflush
200:沖壓裝置 200: stamping device
201:母模 201: Master
202:壓料板 202: pressure plate
203:沖頭 203: punch
204:反沖頭 204: kickback
30:金屬料片 30: Metal blank
40:鈑件 40: Sheet metal
D1:距離 D1: distance
D2:差值 D2: Difference
R1:內徑 R1: inner diameter
R2:外徑 R2: outer diameter
本發明之其他的特徵及功效,將於參照圖式的實施方式中清楚地呈現,其中:圖1是先前技術的沖壓裝置的一剖視示意圖;圖2是先前技術的沖壓裝置所沖製成的薄形金屬鈑件的一剖視示意圖;圖3是本發明沖壓裝置的一實施例的一剖視示意圖;圖4是該實施例的沖頭的一仰視圖;以及圖5至圖7是多個剖視示意圖,說明該實施例將金屬料片沖製成鈑件的過程。
Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: FIG. 1 is a schematic cross-sectional view of a prior art stamping device; FIG. 2 is a stamping device made by the prior
在本發明被詳細描述之前,應當注意在以下的說明內容中,類似的元件是以相同的編號來表示。 Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numbers.
參閱圖3至圖7,本發明沖壓裝置10之一實施例,適用於將一薄形的金屬料片30沖製成呈圓形片狀的一鈑件40。該沖壓裝置10包含一母模1、一壓料板2、一沖頭3,以及一反沖頭4。
Referring to FIGS. 3 to 7, an embodiment of the
該母模1具有朝上且用以承載該金屬料片30的一承載面11,以及自該承載面11向下形成且截面呈圓形的一模穴12。該壓料板2可上下移動地設於該母模1上方並用以壓抵於該金屬料片30,該壓料板2具有對應於該模穴12的一通孔21,在本實施例中,該壓料板2的底面圍繞該通孔21地向下形成有用以壓抵於該金屬料片30的一壓料環22,該壓料環22的橫截面為倒三角形,需要說明的是,在其他實施態樣中,該壓料環22的橫截面也可以為半圓形、半橢圓形或其他幾何形狀。另外,該母模1也可以具有與該壓料板2的壓料環22相對應的一壓料環(圖未示),不以本實施例為限。
The
該沖頭3可上下移動地設於該母模1的模穴12上方以用於將該金屬料片30沖製成該鈑件40,該沖頭3具有朝下並呈與該模穴12對應的圓形的一沖壓面31,該沖壓面31向上地形成有一圓形凹槽32,以及自該圓形凹槽32向下形成的一環狀凸部33,該圓形凹槽32與該環狀凸部33的中心皆位於該沖壓面31的中心處,且在本實施例中,該環狀凸部33的高度小於該圓形凹槽32的深度。需要說明的是,環狀凸部33的數量也可以為多個,且此時該等環狀凸部33由內而外地依序排列,不以本實施例為限制。該反沖頭4可上下移動地設於該母模1的模穴12內,並用於在沖製過程中與該沖頭3共同夾持該金屬料片30。藉由該沖頭3的沖壓面31上的圓形凹槽32,使該金屬料片30在沖壓過程中能有朝向該
沖頭3撓曲的空間,且藉由該沖頭3的圓形凹槽32上的環狀凸部33,防止該金屬料片30在沖壓過程中過度地朝向該沖頭3撓曲,進而使沖製成的該鈑件40在應力釋放而朝反沖頭4回彈後整體結構較為平坦(見圖7)。
The
詳細來說,定義該金屬料片30的厚度為t,且該沖頭3的沖壓面31的半徑為R,經軟體模擬分析與比較,該圓形凹槽32的周緣與該沖壓面31的周緣的距離D1介於3t與0.15R之間為較佳。該圓形凹槽32的深度與該環狀凸部33的高度的差值D2介於0.25t至1.75t之間為較佳。該環狀凸部33的內徑R1小於0.25R,且外徑R2大於0.5R為較佳。但需要說明的是,上述比例關係之區間的目的在於優化該沖壓裝置10,因此不應以此為限制。
In detail, the thickness of the
綜上所述,本發明沖壓裝置10藉由該沖頭3的沖壓面31上的圓形凹槽32,使該金屬料片30在沖壓過程中能有朝向該沖頭3撓曲的空間,且藉由該沖頭3的圓形凹槽32上的環狀凸部33,防止該金屬料片30在沖壓過程中過度地朝向該沖頭3撓曲,進而使沖製成的該鈑件40在應力釋放而朝反沖頭4回彈後整體結構較為平坦,以減少二次加工的需求。
In summary, the stamping
惟以上所述者,僅為本發明之實施例而已,當不能以此限定本發明實施之範圍,凡是依本發明申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾,皆仍屬本發明專利涵蓋之範圍內。 However, the above are only examples of the present invention, and should not be used to limit the scope of the present invention. Any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still classified as This invention covers the patent.
10:沖壓裝置 10: Stamping device
1:母模 1: Female mold
11:承載面 11: bearing surface
12:模穴 12: mold cavity
2:壓料板 2: pressure plate
21:通孔 21: through hole
22:壓料環 22: Press ring
3:沖頭 3: punch
31:沖壓面 31: Stamping surface
32:圓形凹槽 32: Round groove
33:環狀凸部 33: Ring convex part
4:反沖頭 4: backflush
30:金屬料片 30: Metal blank
D1:距離 D1: distance
D2:差值 D2: Difference
R1:內徑 R1: inner diameter
R2:外徑 R2: outer diameter
Claims (7)
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TW108122637A TWI692381B (en) | 2019-06-27 | 2019-06-27 | Stamping device |
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TW108122637A TWI692381B (en) | 2019-06-27 | 2019-06-27 | Stamping device |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102764807A (en) * | 2011-05-02 | 2012-11-07 | 本田技研工业株式会社 | Manufacturing method of press product and press forming apparatus |
TWM479806U (en) * | 2013-11-05 | 2014-06-11 | Cheng-Ping Wang | Channel-form fine blanking device |
CN104136142A (en) * | 2011-12-22 | 2014-11-05 | 新日铁住金株式会社 | Press-formed product |
TW201641177A (en) * | 2015-03-03 | 2016-12-01 | 新日鐵住金股份有限公司 | Press forming method and press forming apparatus |
-
2019
- 2019-06-27 TW TW108122637A patent/TWI692381B/en active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102764807A (en) * | 2011-05-02 | 2012-11-07 | 本田技研工业株式会社 | Manufacturing method of press product and press forming apparatus |
CN104136142A (en) * | 2011-12-22 | 2014-11-05 | 新日铁住金株式会社 | Press-formed product |
TWM479806U (en) * | 2013-11-05 | 2014-06-11 | Cheng-Ping Wang | Channel-form fine blanking device |
TW201641177A (en) * | 2015-03-03 | 2016-12-01 | 新日鐵住金股份有限公司 | Press forming method and press forming apparatus |
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