WO2014162350A1 - プレス装置 - Google Patents
プレス装置 Download PDFInfo
- Publication number
- WO2014162350A1 WO2014162350A1 PCT/JP2013/002276 JP2013002276W WO2014162350A1 WO 2014162350 A1 WO2014162350 A1 WO 2014162350A1 JP 2013002276 W JP2013002276 W JP 2013002276W WO 2014162350 A1 WO2014162350 A1 WO 2014162350A1
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- WIPO (PCT)
- Prior art keywords
- molded product
- mold
- primary molded
- die
- machining
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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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- 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
- B21D22/21—Deep-drawing without fixing the border of the blank
-
- 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
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/02—Die-cushions
-
- 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
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/16—Additional equipment in association with the tools, e.g. for shearing, for trimming
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
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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
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
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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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0076—Noise or vibration isolation means
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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
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/04—Blank holders; Mounting means therefor
- B21D24/06—Mechanically spring-loaded blank holders
-
- 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
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/10—Devices controlling or operating blank holders independently, or in conjunction with dies
- B21D24/12—Devices controlling or operating blank holders independently, or in conjunction with dies mechanically
-
- 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
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/10—Devices controlling or operating blank holders independently, or in conjunction with dies
- B21D24/14—Devices controlling or operating blank holders independently, or in conjunction with dies pneumatically or hydraulically
Definitions
- the present invention relates to a press apparatus that press-forms a steel sheet to form a primary molded product, pressurizes and holds the primary molded product, and performs machining on the primary molded product when the pressure is held to obtain a final molded product.
- a press-molded product is formed by a hot press method, and a steel plate heated to a quenching temperature is lowered by lowering a lifting table on which the upper mold is supported.
- the mold is press-molded to form a primary molded product, and the primary molded product is pressurized and held and quenched, and at the time of quenching, the upper mold is separated from the lifting platform and placed in the lower mold.
- the primary molded product is machined with the trim mold fixed to the lifting platform to obtain a final molded product.
- JP 2011-92946 A (paragraphs 0015 to 0029, FIGS. 1 to 4)
- a support rod extending upward from an upper mold is inserted into an elevator base, and between a contact member provided on an upper wall inside the elevator base and the upper end of the support rod. Since the upper die is supported by the lifting platform by interposing a block fixed to the piston rod tip of the fluid pressure cylinder, when machining the primary molded product with a trim die, the upper die is removed from the lifting platform. In order to detach, it is necessary to temporarily stop holding the pressure of the primary molded product and raise the lifting platform temporarily, and then retract the block by the contraction operation of the fluid pressure cylinder. Becomes bulky.
- the present invention has been made in view of such a point, and an object of the present invention is to provide a press apparatus that has high production efficiency and is less likely to fail.
- the present invention is characterized in that the upper mold is not moved up and down with respect to the lifting platform.
- a base installed on the floor, a lift placed facing the upper side of the base so as to be lifted and lowered, and a lower base on which the steel plate is placed.
- a mold is fixed to the lifting platform, and a steel sheet is press-formed with the lower mold by a lowering operation of the lifting platform to form a primary molded product, and the primary molded product is pressed and held with the lower mold.
- a mold, and supported by the lifting platform so as to move up and down, and when the primary molded product is held under pressure by the upper mold and the lower mold, the primary molded product is subjected to machining by a downward movement operation to obtain a final molded product And a machining die that is provided.
- a plurality of rods moving downward in synchronization with a downward movement of the machining die are provided around the machining die in a posture extending in the vertical direction.
- a plurality of impact absorbing means are provided at positions corresponding to the rods of the base to absorb the impact generated when the steel plate is press-formed and the impact generated when the primary molded product is machined. It is characterized by that.
- the upper mold is formed with a through hole extending in the horizontal direction and a piercing hole extending in the vertical direction from the through hole to the molding surface.
- a plurality of processing dies are arranged around the upper die, and a trim die that cuts an outer peripheral portion of the primary molded product, and a pierce die that is arranged so as to be able to advance and retreat in the pierced hole and performs hole processing on the primary molded product, And a connecting member that is inserted into the through-hole so as to be movable up and down, is connected to the upper end of the pierce mold, and connects at least two of the trim molds.
- the machining mold is maintained while maintaining the pressure of the primary molded product by the upper mold and the lower mold.
- the primary molded product can be machined, and it is not necessary to temporarily raise the lifting platform during pressurization as in Patent Document 1, so that the production efficiency can be improved.
- the upper mold, the lower mold, and the machining mold that occur during press molding and machining are less swayed. Therefore, the load applied to the apparatus is further reduced than in the first invention to prevent failure. Can do.
- the machining dies are moved downward with upward tension applied to each hydraulic press by each shock absorber, the machining dies are moved downward with the hydraulic pressure of each hydraulic press aligned at a predetermined value. Thus, the machined mold can be moved down smoothly, and further failure of the apparatus can be prevented.
- the inner periphery of the primary molded product is simultaneously drilled by the advance operation of the pierce die in conjunction with cutting the outer peripheral portion of the primary molded product by the downward movement of the trim die. It is not necessary to perform the piercing process separately, and the production time can be further reduced as compared with the first invention. In addition, a driving source for advancing and retracting the piercing type is not necessary, and a low-cost device can be achieved.
- FIG. 1 is a press device according to an embodiment of the present invention. It is a figure which shows the state immediately after press-molding a steel plate with an upper mold
- FIG. 3 is a diagram showing a state immediately after the final molded product is obtained by machining the primary molded product by moving the machining die downward from the state of FIG. 2. From the state of FIG. 3, the state immediately after the machining die moves up and the lifting platform is raised is shown. It is a figure which shows the state from which the final molded product was lifted from the lower mold
- FIG. 1 shows a press apparatus 1 according to an embodiment of the present invention.
- the press device 1 is for forming a press-molded product by a hot press method, and is disposed so as to be movable up and down by control of a base 2 installed on the floor surface F and a servo motor (not shown) above the base 2.
- the lift 3 is provided.
- a housing space 20 is formed in the center of the base 2, and a die cushion 2 a is housed in the housing space 20.
- a plurality of base pin holes 2b are formed penetratingly formed in the center upper portion of the base 2 so as to open to the upper surface and extend in the vertical direction to the accommodation space 20.
- a lower die 4 on which the steel plate 10 heated to the quenching temperature is placed is fixed on the central upper surface of the base 2, and a concave portion 4 a opening upward is formed in the center of the lower die 4. Yes.
- the upper half portion of the inner peripheral surface of the recess 4a is located on the outer side in the horizontal direction with respect to the lower half portion, and a step portion 4b is formed between them.
- a cushion mold 12 corresponding to the lower half of the recess 4a is disposed in the lower half of the recess 4a so as to be able to advance and retreat.
- a through hole 12a is formed through the center of the cushion mold 12 in the vertical direction. ing.
- a plurality of lower mold pin holes 4c corresponding to the respective base pin holes 2b are formed on the bottom surface of the recess 4a, and cushion pins are provided in the base pin holes 2b and the lower mold pin holes 4c corresponding to each other. 11 is inserted so that it can slide up and down.
- Each cushion pin 11 is interposed between the cushion mold 12 and the die cushion 2a, and the cushion mold 12 is moved upward by the up-and-down movement of each cushion pin 11, and the upper end surface Is flush with the upper end surface of the lower mold 4, while the lower end surface is in contact with the bottom surface of the recess 4a in a state of retreating downward, and the upper end surface is flush with the stepped portion 4b.
- 4b constitutes a molding surface 4d.
- the upper die 5 having a molding surface 5a having a substantially convex cross section is fixed at a position facing the lower die 4 of the elevator 3.
- the upper mold 5 is formed with an upper mold through hole 5b extending in the horizontal direction and a piercing hole 5c extending in the vertical direction from the longitudinal center of the upper mold through hole 5b to the molding surface 5a.
- the upper die 5 is formed by pressing the steel plate 10 heated with the lower die 4 by the lowering operation of the elevator 3 to form a primary molded product 10a.
- the molded product 10a is pressed and held with the lower mold 4 for quenching.
- a plurality of hydraulic press machines 6 are fixed around the upper mold 5 of the elevator 3, and a trim mold 7 a extending in the vertical direction is supported on the hydraulic press machine 6 so as to be movable up and down.
- a thin round bar-shaped piercing die 7b is disposed in the piercing hole 5c so as to be able to advance and retreat in the vertical direction.
- a rod-like connecting member 7c is inserted into the upper die through hole 5b so as to be movable up and down, and the longitudinal center of the connecting member 7c is connected to the upper end of the pierce die 7b and the connecting member 7c. The both ends of each are connected to two opposing ones of the trim molds 7a.
- the trim mold 7a and the pierce mold 7b constitute the machining mold 7 of the present invention, and when the primary molded product 10a is held under pressure by the upper mold 5 and the lower mold 4, as shown in FIG. Further, when the trim mold 7a moves downward, the outer peripheral portion of the primary molded product 10a is cut, and when the pierce mold 7b advances, the primary molded product 10a is perforated. ing.
- the primary molded product 10a is machined to obtain the final molded product 10b.
- the rod 8 is fixed to the side surface of each trim mold 7a in a vertically extending posture, and the lower end thereof is located below the molding surface 5a of the upper mold 5.
- shock absorbers 9 shock absorbing means
- shock absorbers 9 shock absorbing means
- the lower end of the rod 8 comes into contact to absorb the impact and the machining die 7 moves down to machine the primary molded product 10a. 8 is shrunk to absorb the impact.
- FIG. 1 shows a state in which a steel plate 10 heated in a heating furnace or the like is carried between an upper mold 5 and a lower mold 4 in a mold open state.
- each of the trim dies 7 a moves upward with respect to the upper die 5, and the pierce die 7 b retreats upward with respect to the upper die 5.
- the cushion mold 12 advances upward with respect to the lower mold 4 by the upward movement of each cushion pin 11, and the upper end surface is flush with the upper end surface of the lower mold 4.
- the elevator 3 is first lowered as shown in FIG. 2 (arrow X1). Then, by press molding with the upper mold 5 and the lower mold 4, the central portion of the steel plate 10 on which the molding surface 5a of the upper mold 5 is heated is pressed downward, and the cushion mold 12 is used as the urging force of the die cushion 2a.
- the cushion mold 12 comes into contact with the bottom surface of the concave portion 4a, the primary molded product 10a is obtained between the upper mold 5 and the lower mold 4.
- the lower end of each rod 8 comes into contact with each shock absorber 9 to absorb the shock.
- the primary molded product 10a is cooled by being held under pressure by the upper mold 5 and the lower mold 4, and the primary molded product 10a is quenched.
- each trim mold 7a is moved downward and the pierce mold 7b is advanced.
- the outer peripheral portion of the primary molded product 10a is cut by each trim die 7a, and the primary molded product 10a is drilled by the piercing die 7b (arrow X3).
- the trim dies 7a and the pierce dies 7b are moved downward with the upward tension applied to the hydraulic presses 6 by the shock absorbers 9, so that the hydraulic pressures of the hydraulic presses 6 are aligned at a predetermined value.
- the trim molds 7a and the pierce molds 7b move downward, and the downward movements of the trim molds 7a and the pierce molds 7b become smooth, so that a failure of the press device 1 can be prevented.
- the cushion mold 12 is advanced upward by the die cushion 2 a and each cushion pin 11, and as shown in FIG. 5, the final molded product 10 b is lifted away from the lower mold 4, and thereafter The final molded product 10b is carried out between the upper mold 5 and the lower mold 4 (arrow X6).
- the upper mold 5 is fixed to the lifting platform 3, and the trim mold 7 a and the piercing mold 7 b move up and down with respect to the lifting platform 3.
- the primary molded product 10a can be machined by the trim mold 7a and the pierce mold 7b while maintaining the pressure holding of the primary molded product 10a by the above method. There is no need to raise it, and production efficiency can be improved.
- shock absorber 9 reduces the shaking of the upper die 5, the lower die 4, the trim die 7a, and the pierce die 7b that occurs during press molding and machining, thereby further reducing the load on the press device 1 and causing a failure. Can be prevented.
- the inner periphery of the primary molded product 10a is simultaneously drilled by the advancing operation of the piercing die 7b in conjunction with cutting the outer peripheral portion of the primary molded product 10a by the downward movement of the trim die 7a.
- a driving source for advancing and retracting the piercing die 7b is not required, and the press device 1 can be made at a low cost.
- the steel plate 10 is heated to the quenching temperature.
- the present invention is not limited to this, and the softened steel plate 10 is heated to a temperature at which quenching does not occur when held under pressure.
- the primary molded product While forming into a primary molded product, the primary molded product may be pressure-held and cooled and cured, and the primary molded product may be machined during the pressure-holding to obtain a final molded product.
- the press device 1 of the present invention can also be used for press forming of high-tensile steel plates. That is, a high-tensile steel plate is press-formed into a primary molded product, and the primary molded product is held under pressure, and the primary molded product is subjected to machining during the pressurization to obtain a final molded product. Good. In this way, the spring back of the final molded product is reduced, and the component accuracy can be increased.
- connection member 7c has connected two which oppose among the trim mold
- said connection member 7c has at least two of the some trim mold
- one piercing die 7b is arranged, but a plurality of piercing molds 7b may be arranged.
- the outer peripheral portion of the primary molded product 10a is cut and drilled simultaneously by the trim mold 7a and the pierce mold 7b.
- the primary molding is performed only by the trim mold 7a.
- the structure which cuts the outer peripheral part of the goods 10a may be sufficient, and the structure which does not have the trim mold
- the rod 8 is fixed to the side surface of the trim mold 7a. However, if the rod 8 moves downward in synchronization with the downward movement of the trim mold 7a, the rod 8 may be provided on the lifting platform 3. Good.
- the present invention provides a press apparatus that press-forms a steel sheet to form a primary molded product, pressurizes and holds the primary molded product, and performs machining on the primary molded product at the time of pressurization to obtain a final molded product. Is suitable.
Abstract
Description
2 基台
3 昇降台
4 下型
5 上型
5a 成形面
5b 上型貫通孔
5c ピアス孔
7 機械加工型
7a トリム型
7b ピアス型
7c 連結部材
8 ロッド
9 ショックアブソーバ(衝撃吸収手段)
10 鋼板
10a 一次成形品
10b 最終成形品
F 床面
Claims (3)
- 床面に設置された基台と、
該基台の上方に対向して昇降可能に配置された昇降台と、
上記基台に固定され、鋼板を載置する下型と、
上記昇降台に固定され、当該昇降台の下降動作により上記下型とで鋼板をプレス成形して一次成形品とするとともに、該一次成形品を上記下型とで加圧保持する上型と、
上記昇降台に上下動可能に支持され、上記上型及び下型による上記一次成形品の加圧保持時において、下動動作により上記一次成形品に機械加工を施して最終成形品とする機械加工型とを備えていることを特徴とするプレス装置。 - 請求項1に記載のプレス装置において、
上記機械加工型周りには、該機械加工型の下動動作に同期して下動する複数のロッドが上下方向に延びる姿勢で設けられ、
上記基台の上記各ロッドに対応する位置には、上記鋼板をプレス成形する際に発生する衝撃、及び上記一次成形品を機械加工する際に発生する衝撃を吸収する衝撃吸収手段が複数設けられていることを特徴とするプレス装置。 - 請求項1又は2に記載のプレス装置において、
上記上型には、水平方向に延びる貫通孔と、該貫通孔から成形面まで上下方向に延びるピアス孔とが貫通形成され、
上記機械加工型は、上記上型の周りに複数配置され、上記一次成形品の外周部分を切断するトリム型と、
上記ピアス孔に進退可能に配置され、上記一次成形品に孔加工を施すピアス型と、
上記貫通孔に上下動可能に挿通され、上記ピアス型の上端に接続されるとともに上記トリム型のうちの少なくとも対向する2つを連結する連結部材とを備えていることを特徴とするプレス装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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MX2015013795A MX365402B (es) | 2013-04-02 | 2013-04-02 | Aparato de prensa. |
JP2015509594A JP5982560B2 (ja) | 2013-04-02 | 2013-04-02 | プレス装置 |
PCT/JP2013/002276 WO2014162350A1 (ja) | 2013-04-02 | 2013-04-02 | プレス装置 |
US14/851,423 US10350663B2 (en) | 2013-04-02 | 2015-09-11 | Press apparatus |
Applications Claiming Priority (1)
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PCT/JP2013/002276 WO2014162350A1 (ja) | 2013-04-02 | 2013-04-02 | プレス装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US14/851,423 Continuation US10350663B2 (en) | 2013-04-02 | 2015-09-11 | Press apparatus |
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WO2014162350A1 true WO2014162350A1 (ja) | 2014-10-09 |
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PCT/JP2013/002276 WO2014162350A1 (ja) | 2013-04-02 | 2013-04-02 | プレス装置 |
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US (1) | US10350663B2 (ja) |
JP (1) | JP5982560B2 (ja) |
MX (1) | MX365402B (ja) |
WO (1) | WO2014162350A1 (ja) |
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MX2015013795A (es) | 2016-02-16 |
US10350663B2 (en) | 2019-07-16 |
MX365402B (es) | 2019-05-31 |
JP5982560B2 (ja) | 2016-08-31 |
US20160008864A1 (en) | 2016-01-14 |
JPWO2014162350A1 (ja) | 2017-02-16 |
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