KR19980017843A - Press Molding Device for Plate Forming - Google Patents
Press Molding Device for Plate Forming Download PDFInfo
- Publication number
- KR19980017843A KR19980017843A KR1019960037660A KR19960037660A KR19980017843A KR 19980017843 A KR19980017843 A KR 19980017843A KR 1019960037660 A KR1019960037660 A KR 1019960037660A KR 19960037660 A KR19960037660 A KR 19960037660A KR 19980017843 A KR19980017843 A KR 19980017843A
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- South Korea
- Prior art keywords
- punch
- forming
- plastic
- molding
- holder
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Classifications
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- 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
- B21D37/08—Dies with different parts for several steps in a process
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- 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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
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- 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
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- 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
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
- B21D31/02—Stabbing or piercing, e.g. for making sieves
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- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/003—Simultaneous forming, e.g. making more than one part per stroke
Abstract
본 발명은 판재성형용 프레스 금형장치에 관한 것으로서, 제조비용이 절약되고, 단일의 공정에 의하여 피성형판재를 이중으로 성형하여 작업완성도가 향상되도록 한 것이다. 이를 위해, 본 발명에 따른 판재성형용 프레스 금형장치는 피성형판재에 비교적 큰 대성형부를 형성하는 대성형펀치와, 대성형펀치의 가압구동부용 대성형펀치구동부와, 대성형펀치 내에 대성형펀치의 이송방향을 따라 이동가능하게 설치되어, 대성형부 내에 소성형부를 형성하는 소성형펀치와, 소성형펀치를 대성형펀치에 대해 독립적으로 가압구동하는 소성형펀치구동부와, 대성형펀치 및 소성형펀치를 지지하는 펀치홀더를 포함한다.The present invention relates to a press mold apparatus for forming a sheet, which reduces manufacturing costs and improves work completion by molding a plate to be formed by a single process in a double process. To this end, the press molding apparatus for forming a sheet according to the present invention includes a large forming punch for forming a relatively large large forming part on a molded plate material, a large forming punch driving part for pressurizing a driving part of a large forming punch, and a large forming punch in a large forming punch. A plastic punch formed to be movable along the conveying direction of the plastic mold to form a plastic mold in the large molding portion, a plastic punch driving portion for independently pressing and driving the plastic punch to the large molding punch, and a large molding punch and plastic mold And a punch holder for supporting the punch.
Description
본 발명은 판재성형용 프레스 금형장치에 관한 것이다.The present invention relates to a press mold apparatus for sheet forming.
소성가공에서 판재의 성형가공은 대단히 많은 부분을 차지하며, 대량생산용 기계로서 프레스 기계장치를 사용하는 것이 일반적이다. 프레스 기계장치는, 성형가공할 성형물의 형상에 대응하도록 제작되어 피성형판재를 지지하는 성형용 다이와 피성형판재를 성형용 다이를 향해 가압하여 성형하는 성형용 펀치를 구비하고 있다.In plastic processing, the forming of sheet materials takes up a great part, and it is common to use press machines as machines for mass production. The press machine is provided with a molding die which is formed so as to correspond to the shape of a molding to be molded and supports a molded plate member, and a molding punch that presses the molded plate member toward the molding die.
이러한 프레스 금형장치에 의해 수행되는 판금가공에서는 필요한 성형물의 형상을 얻기 위하여 일정부위를 이중으로 가공해야 하는 경우가 많이 발생한다. 특히, 피성형판재를 펀치로 가압하여 드로잉성형한 드로잉성형부를 피어싱이나 버어링작업하여 천공부를 형성하는 것은 소성가공에서 매우 흔한 일이다. 이 작업은 드로잉성형용 펀치 및 피어싱이나 버어링성형용 펀치를 펀치홀더에 따로 장착하여, 별개의 공정으로 행하여 지는 것이 보통이다.In the sheet metal processing performed by such a press mold apparatus, there are many cases in which a certain part needs to be processed in order to obtain a shape of a required molding. In particular, it is very common in plastic working to form a perforated part by piercing or burring a drawing molded part which is pressed by punching the formed plate member with a punch. This work is usually carried out in a separate process by attaching punches for drawing molding and punches for piercing or bearing molding separately to punch holders.
도 4는 종래의 판재성형용 프레스 금형장치의 드로잉성형전 단면도이다. 이 도면에 도시된 바와 같이, 필요한 성형물의 형상이 새겨진 금형다이(121) 상에 놓여져 있는 피성형판재(103)에 드로잉성형부를 형성하는 드로잉성형용펀치(105)는 상하로 왕복동하는 펀치홀더(101)에 고정설치되어 있다. 펀치홀더(101)의 하부에는, 드로잉성형용펀치(105)가 피성형판재(103)의 드로잉성형부를 가압성형할 시, 피성형판재(103)의 드로잉성형부를 제외한 판면을 면접촉지지하는 판상의 스트리퍼(111)가 관상의 스페이서(119)에 의해 지지되어 설치된다. 스트리퍼(111)와 펀치홀더(101) 사이에는 스프링(117)이 개재되어 스트리퍼(111)가 탄성적으로 요동할 수 있도록 되어 있고, 스트리퍼(111)의 중앙영역에는 관통공(123)이 형성되어 드로잉성형용펀치(105)가 이 관통공(123)을 통해 피성형판재(103)를 가압성형하도록 되어 있다.4 is a cross-sectional view before drawing of a conventional press molding apparatus for sheet forming. As shown in this figure, the drawing molding punch 105 for forming the drawing molding part on the molded plate material 103 placed on the mold die 121 having the shape of the necessary molding engraved therein is a punch holder reciprocating up and down ( 101) is fixedly installed. In the lower part of the punch holder 101, when the drawing molding punch 105 press-forms the drawing molding part of the to-be-molded plate material 103, the plate shape which supports surface contact except the drawing molding part of the to-be-molded board material 103 is carried out. Stripper 111 is supported and installed by the tubular spacer 119. A spring 117 is interposed between the stripper 111 and the punch holder 101 to allow the stripper 111 to swing elastically, and a through hole 123 is formed in the center region of the stripper 111. The drawing molding punch 105 press-forms the formed plate member 103 through the through hole 123.
이러한 구성에 의하여, 피성형판재(103)를 드로잉성형하는 경우에는, 도 5에 도시된 바와 같이, 펀치홀더(101)가 수직하방으로 이동하여, 스트리퍼(111)가 금형다이(121) 위에 놓여지는 피성형판재(103)를 지지한 상태에서, 드로잉성형용펀치(105)가 스프리퍼(111)에 형성된 관통공(123)을 통과하여 피성형판재(103)를 가압하여 드로잉성형부를 형성하게 된다.With this configuration, in the case of drawing molding the formed plate material 103, as shown in FIG. 5, the punch holder 101 is moved vertically downward so that the stripper 111 is placed on the mold die 121. FIG. In the state in which the sheet to be molded 103 is supported, the drawing forming punch 105 passes through the through hole 123 formed in the sputter 111 to press the plate to be formed 103 to form the drawing molded part. do.
이렇게 하여 드로잉성형용펀치(105)를 사용하여 드로잉성형작업을 완료하게 되면, 도 6 및 도 7에 도시된 바와 같이, 펀치홀더(101)에 드로잉성형용펀치(105) 대신에 피어싱용펀치(109) 혹은 버어링용 펀치를 펀치홀더(101)에 교체장착하여, 드로잉성형된 피성형판재(103)의 드로이성형부에 다시 피어싱 혹은 버어링작업을 수행하게 된다. 그래서, 드로잉성형된 드로잉성형부에 피어싱 혹은 버이링된 성형물이 완성된다.When the drawing molding operation is completed by using the drawing molding punch 105 in this way, as shown in FIGS. 6 and 7, the punching punch 101 has a piercing punch instead of the drawing molding punch 105. 109) or the punch for bearing is replaced and mounted on the punch holder 101, and the piercing or burring operation is performed again on the draw mold of the drawing-molded plate member 103. Thus, a molded body pierced or burried with the drawing molded part is completed.
그런데, 전술한 과정에 설명한 바와 같이, 피성형판재(103)를 드로잉성형한 후, 드로잉성형부에 다시 피어싱 혹은 버어링 작업을 따로 수행하게 되면, 피어싱이나 버어링된 천공부는 정확한 위치나 치수를 얻을 수 있게 되지만, 스트리퍼를 피어싱용펀치(109) 혹은 버어링용 펀치가 통과하고 드로잉성형된 부위에 형상맞춤되도록 별도 제작해야 하기 때문에 제작비용이 많이 들게 된다. 또한, 드로잉성형 후에 피어싱 혹은 버어링 작업을 수행함으로써, 드로잉성형시 피성형판재(103)에 잔존하는 잔류응력에 의해 피성형판재가 원상으로 돌아가려는 탄력작용으로 그 굽힘량이 줄어들게 된다. 이에 따라, 피어싱 혹은 버어링 작업시에 피성형판재의 피어싱 혹은 버어링 성형부에 찍힘이나 형상변형이 생길 가능성이 많아지게 된다.However, as described in the above-described process, after the molded molding member 103 is subjected to drawing molding, if the piercing or burring operation is performed separately to the drawing molding part, the pierced or burred perforated part may be precisely positioned or dimensioned. Although it can be obtained, the production cost is high because the stripper has to be manufactured separately so that the piercing punch 109 or the punch for punching passes and is shaped to the drawing molded part. In addition, by performing piercing or burring operation after the drawing molding, the bending amount is reduced due to the elasticity of the molded plate member to return to the original form by the residual stress remaining on the formed plate member 103 during the drawing molding. This increases the likelihood that the piercing or burring formed portion of the formed plate member will be stamped or deformed during piercing or burring.
반대로, 피성형판재(103)에 피어싱 혹은 버어링 작업 후에 굽힘성형작업을 수행하는 경우에도, 드로잉성형시 드로잉성형용펀치(105)의 가압력에 의해 피어싱 혹은 버어링 천공부의 위치나 치수가 변할 수 있고, 피어싱 혹은 버어링 천공부에 크랙이 생길 가능성이 많아지게 된다.On the contrary, even when the bending forming operation is performed after the piercing or burring operation on the molded plate material 103, the position or the dimension of the piercing or bearing perforation portion may be changed by the pressing force of the drawing forming punch 105 during drawing molding. And the likelihood of cracking of the piercing or bearing perforations increases.
이상과 같이, 종래의 판재성형용 프레스 금형장치로 피성형판재(103)에 이중으로 성형작업을 하게 되는 경우에는, 제조비용이 많이 들고, 각 성형작업의 작업완성도가 떨어진다는 문제점이 있다.As described above, in the case where the molding plate material 103 is double-molded by the conventional plate forming press mold apparatus, there is a problem that the manufacturing cost is high and the work completion of each molding operation is inferior.
따라서, 본 발명의 목적은, 제조비용이 절약되고, 단일의 공정에 의하여 피성형판재를 이중으로 성형하여 성형작업의 작업완성도가 향상되는 판재성형용 프레스 금형장치를 제공하는 것이다.Accordingly, an object of the present invention is to provide a press molding apparatus for forming a plate, in which manufacturing cost is saved, and the work completion of the forming operation is improved by forming a molded plate member by a single process in a double manner.
도 1은 본 발명에 따른 판재성형용 프레스 금형장치의 단면도,1 is a cross-sectional view of a press molding apparatus for forming a plate according to the present invention;
도 2는 도 1의 판재성형용 프레스 금형장치의 드로잉성형상태의 단면도,Figure 2 is a cross-sectional view of the drawing molding state of the sheet metal press mold apparatus of Figure 1,
도 3은 피어싱성형상태의 단면도,3 is a cross-sectional view of the piercing molded state,
도 4는 종래의 판재성형용 프레스 금형장치의 드로잉성형전 단면도,Figure 4 is a cross-sectional view before the molding of the conventional press forming apparatus for sheet forming,
도 5는 드로잉성형후 단면도,Figure 5 is a cross-sectional view after the molding,
도 6은 피어싱성형전 단면도,6 is a sectional view before piercing molding,
도 7은 피어싱성형후 단면도이다.7 is a cross-sectional view after piercing molding.
* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
1:펀치홀더3:피성형판재1: Punch Holder 3: Molded Plate
5:대성형펀치9:소성형펀치5: large forming punch 9: plastic forming punch
13:가스스프링21:금형다이13: Gas spring 21: Mold die
상기 목적은, 본 발명에 따라, 판재성형용 프레스 금형장치에 있어서, 피성형판재에 비교적 큰 대성형부를 형성하는 대성형펀치와, 대성형펀치의 가압구동부용 대성형펀치구동부와, 대성형펀치 내에 대성형펀치의 이송방향을 따라 이동가능하게 설치되어, 대성형부 내에 소성형부를 형성하는 소성형펀치와, 소성형펀치를 상기 대성형펀치에 대해 독립적으로 가압구동하는 소성형펀치구동부와, 대성형펀치 및 소성형펀치를 지지하는 펀치홀더를 포함하는 것을 특징으로 하는 판재성형용 프레스 금형장치에 의해 달성된다.According to the present invention, in the press molding apparatus for forming a sheet, a large forming punch for forming a relatively large large forming part in a formed plate member, a large forming punch driving part for pressurizing a driving part of a large forming punch, and a large forming punch A plastic punch formed in the conveying direction of the large molding punch in the large molding part to form the plastic mold part in the large molding part, and a plastic punch driving part for independently pressing and driving the plastic punch to the large molding punch; It is achieved by a press forming apparatus for sheet metal forming, characterized in that it comprises a punch holder for supporting the forming punch and the plastic punch.
여기서, 소성형펀치는 펀치홀더에 고정설치되며, 소성형펀치구동부가 펀치홀더의 승강구동부가 되도록 할 수 있다. 또한, 대성형펀치를 펀치홀더에 대해 상대이동 가능하게 설치하고, 대성형펀치구동부를 펀치홀더에 고정설치할 수 있다. 대성형펀치구동부로는 가스스프링을 채용하는 것이 바람직하다.The plastic punch may be fixed to the punch holder, and the plastic punch driver may be the lifting driver of the punch holder. In addition, the large forming punch can be installed so as to be movable relative to the punch holder, and the large forming punch driving unit can be fixed to the punch holder. It is preferable to employ a gas spring as the large forming punch driving unit.
한편, 이와는 반대로 대성형펀치가 펀치홀더에 고정설치되고 대성형펀치구동부가 펀치홀더의 승강구동부가 되도록 할 수도 있다. 또한, 소성형펀치를 펀치홀더에 대해 상대이동 가능하게 설치하고, 소성형펀치구동부를 펀치홀더에 고정설치할 수도 있다. 이 경우에도 소성형펀치구동부로는 가스스프링을 채용할 수 있다.On the other hand, on the contrary, the large forming punch may be fixed to the punch holder and the large forming punch driving unit may be the lifting driving unit of the punch holder. It is also possible to provide the plastic punch with relative movement to the punch holder, and to fix the plastic punch driving part to the punch holder. Also in this case, a gas spring can be adopted as the plastic punch driving unit.
전술한 대성형펀치 및 소성형펀치는 드로잉성형용 및 피어싱성형용 혹은 버어링성형용으로 각각 채용될 수 있다.The above-mentioned large forming punch and plastic forming punch may be employed for drawing molding, piercing molding or burring molding, respectively.
이하에서 첨부도면을 참조하여 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명에 따른 판재성형용 프레스 금형장치의 단면도이다. 이 도면에 도시된 바와 같이, 판재성형용 프레스 기계의 상부영역에 설치되는 도시않은 플라이휠에 연결되어 플라이휠의 회전운동에 의해서 수직으로 왕복동하는 펀치홀더(1)가 마련되어 있다. 펀치홀더(1)에는 피성형판재(3)에 비교적 큰 대성형부, 예를 들어 드로잉성형부를 형성하는 대성형펀치(5)가 설치되어 있고, 대성형펀치(5) 내에 형성된 관통공(7)을 통과하여 대성형펀치(5)의 이송방향을 따라 상대이동가능하게 설치되고 피성형판재(3)의 대성형부 내에 소성형부, 예를 들어 피어싱성형부를 형성하는 소성형펀치(9)가 펀치홀더(1)에 고정설치되어 펀치홀더(1)와 함께 일체로 승강하도록 되어 있다. 펀치홀더(1)의 하부에는 피성형판재(3)를 면접촉지지하고, 판면 중앙에 형성된 관통공으로 대성형펀치(5)가 통과하는 판상의 스프리퍼(11)가 설치되어 있다. 대성형펀치(5)는 펀치홀더(1)에 고정설치된 가스스프링(13)에 컨텍팅로드(15)로 연결되어, 가스스프링(13)이 작동함으로써, 피성형판재(3)를 가압하여 드로잉성형부를 형성시키게 된다.1 is a cross-sectional view of a press molding apparatus for forming a sheet according to the present invention. As shown in this figure, a punch holder 1 is provided which is connected to a flywheel (not shown) installed in the upper region of the sheet forming press machine and reciprocates vertically by the rotational movement of the flywheel. The punch holder 1 is provided with a large forming punch 5 that forms a relatively large forming portion, for example, a drawing forming portion, in the formed plate member 3, and a through hole 7 formed in the large forming punch 5. A punch holder is provided with a plastic punch (9) installed so as to be relatively movable along the conveying direction of the large molding punch (5) and forming a plastic molding portion, for example, a piercing molding portion, in the large molding portion of the molded plate material (3). It is fixedly attached to (1), and it raises and falls together with the punch holder 1 integrally. In the lower part of the punch holder 1, the plate-shaped sputter 11 through which the to-be-molded plate material 3 is surface-contacted and the large forming punch 5 passes through the through-hole formed in the center of a plate surface is provided. The large forming punch 5 is connected to the gas spring 13 fixed to the punch holder 1 by means of a contacting rod 15. The gas spring 13 is operated to pressurize the formed plate 3 to draw. The molding part is formed.
대성형펀치(5)의 양측에는, 일단이 펀치홀더(1)에 타단이 스트리퍼(11)의 상판면에 접촉하는 압축코일스프링(17) 및 관상의 스페이서(19)가 길이방향으로 각각 설치되어 있고, 스트리퍼(11)의 하부영역에는 피성형판재(3)를 지지유지하는 금형다이(21)가 설치되어 있다. 금형다이(21)에는, 대성형펀치(5) 및 소성형펀치(9)가 형상맞춤되도록 홈부 및 관통공이 형성되어 있다.On both sides of the large forming punch 5, a compression coil spring 17 and a tubular spacer 19, one end of which is in contact with the upper surface of the stripper 11 and the other end of which is provided in the punch holder 1, In the lower region of the stripper 11, a mold die 21 for holding and holding the formed plate member 3 is provided. In the die die 21, the groove part and the through-hole are formed so that the big punch 5 and the plastic punch 9 may be shape-fitted.
이러한 구성에 의하여, 판재성형용 프레스 금형장치가 작업을 개시하게 되면, 도 2에 도시된 바와 같이, 플라이휠이 회전함에 따라, 펀치홀더(1)가 수직하방으로 하강하게 됨에 따라, 대성형펀치(5) 및 스트리퍼(11)가 동시에 하강하여 금형다이(21)에 놓여진 피성형판재(3)와 접촉한 상태에서, 가스스프링(13)이 작동하여 대성형펀치(5)를 수직하방으로 가압구동시키게 된다. 그래서 대성형펀치(5)는 스트리퍼(11)에 형성된 관통공(23)을 통과하여 피성형판재(3)를 가압하여 드로잉성형하게 된다.By this configuration, when the plate forming press die apparatus starts work, as shown in Figure 2, as the flywheel rotates, as the punch holder 1 is lowered vertically down, a large forming punch ( 5) With the stripper 11 simultaneously lowered and in contact with the formed plate material 3 placed on the mold die 21, the gas spring 13 operates to pressurize and drive the large forming punch 5 vertically downward. Let's go. Therefore, the large forming punch 5 passes through the through-holes 23 formed in the stripper 11 to press the formed plate member 3 to perform drawing molding.
피성형판재(3)가 드로이성형 완료되면, 도 3에 도시된 바와 같이, 펀치홀더(1)가 계속 하강하여 이번에는 펀치홀더(1)에 고정된 소성형펀치(9)가 대성형펀치(5)에 형성된 관통공을 통과하여 피성형판재(3)에 형성된 드로잉성형부 내에 피어싱성형을 하게 된다. 이때의 가압력은 펀치홀더(1)의 수직하강력에 의존하게 된다. 여기서, 스트리퍼(11)가 피성형판재(3)를 고정지지하기 때문에, 드로잉성형부나 피어싱성형부의 위치나 치수는 크게 변하지 않게 되어 정확한 작업이 이루어질 수 있게 된다. 또한, 스트리퍼(11)를 별도로 추가 제작하지 않고 단일공정으로 드로잉성형 및 피어싱성형을 수행하기 때문에, 제조비용이 절약된다.When the to-be-molded sheet material 3 is completed by the draw molding, as shown in FIG. 3, the punch holder 1 continues to descend, and this time, the plastic punch 9 fixed to the punch holder 1 is a large forming punch ( Through the through holes formed in 5), piercing molding is performed in the drawing molding portion formed in the plated material 3. The pressing force at this time is dependent on the vertical downward force of the punch holder (1). Here, since the stripper 11 supports the molded plate member 3, the position or dimension of the drawing molded part or the piercing molded part does not change greatly, so that accurate work can be made. In addition, since drawing and piercing molding are performed in a single process without separately manufacturing the stripper 11, manufacturing cost is saved.
전술 및 도시한 예에서는, 대성형펀치(5)가 가스스프링(13)에 의해 가압구동되고, 소성형펀치가 펀치홀더(2)의 승강력에 의해 가압구동되는 것으로 설명하였지만, 본 발명에 따른 판재성형용 프레스 금형장치에서는 이에 한하지 아니하고, 대성형펀치(5) 및 소성형펀치(9)의 가압구동력을 상호 교체할 수도 있다. 즉, 대성형펀치(5)를 펀치홀더(1)에 고정설치하고, 소성형펀치(9)를 펀치홀더(1)에 고정된 가스스프링(13)에 연결하여 가압구동되도록 할 수 있음은 물론이다.In the above-described and illustrated examples, the large forming punch 5 is pressurized by the gas spring 13, and the plastic punch is pressurized by the lifting force of the punch holder 2, but according to the present invention. In the press molding apparatus for sheet forming, the pressure driving force of the large forming punch 5 and the plastic forming punch 9 may be interchanged. That is, the large punch (5) is fixed to the punch holder 1, and the plastic punch (9) can be connected to the gas spring (13) fixed to the punch holder (1) to be pressure driven, of course. to be.
이상 설명한 바와 같이, 본 발명에 따르면, 제조비용이 절약되고, 단일의 공정에 의하여 피성형판재를 이중으로 성형하여 성형작업의 작업완성도가 향상되는 판재성형용 프레스 금형장치가 제공된다.As described above, according to the present invention, there is provided a plate forming press mold apparatus in which manufacturing cost is reduced, and the work completion of the molding operation is improved by molding the formed plate member in a double process by a single process.
Claims (9)
Priority Applications (1)
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KR1019960037660A KR0176688B1 (en) | 1996-08-31 | 1996-08-31 | Press die for forming plates |
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KR1019960037660A KR0176688B1 (en) | 1996-08-31 | 1996-08-31 | Press die for forming plates |
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KR19980017843A true KR19980017843A (en) | 1998-06-05 |
KR0176688B1 KR0176688B1 (en) | 1999-02-18 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100394650B1 (en) * | 2000-12-19 | 2003-08-14 | 현대자동차주식회사 | Panel lifter for press |
-
1996
- 1996-08-31 KR KR1019960037660A patent/KR0176688B1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100394650B1 (en) * | 2000-12-19 | 2003-08-14 | 현대자동차주식회사 | Panel lifter for press |
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KR0176688B1 (en) | 1999-02-18 |
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