JP5366164B1 - Punch mold - Google Patents

Punch mold Download PDF

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Publication number
JP5366164B1
JP5366164B1 JP2013152352A JP2013152352A JP5366164B1 JP 5366164 B1 JP5366164 B1 JP 5366164B1 JP 2013152352 A JP2013152352 A JP 2013152352A JP 2013152352 A JP2013152352 A JP 2013152352A JP 5366164 B1 JP5366164 B1 JP 5366164B1
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Prior art keywords
punch
pair
base end
pipe
vertical holes
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JP2015020203A (en
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啓二 中島
智久 下方
清 田邉
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Asahi Seiki Manufacturing Co Ltd
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Asahi Seiki Manufacturing Co Ltd
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Priority to JP2013152352A priority Critical patent/JP5366164B1/en
Priority to CN201320672479.4U priority patent/CN203556733U/en
Priority to KR1020130130081A priority patent/KR101385496B1/en
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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
    • B21D37/16—Heating or cooling
    • 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
    • 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
    • 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
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/18—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

【課題】パンチ素材の歩留まり向上及び加工コスト削減を図ると共に、ワークの成形不良を抑えることが可能なパンチ金型の提供を目的とする。
【解決手段】本発明のパンチ金型１０は、パンチホルダ２０にパンチ１１を固定してなり、パンチ１１の先端に形成された平板状のパンチヘッド１２を、ダイス６６の成形孔６６Ａに挿入して薄形ケースＰを成形するパンチ金型１０において、パンチ１１全体をパンチヘッド１２と同じ方向に扁平な板状とし、パンチ１１の幅方向の両端寄りの２位置に、パンチ１１の基端面から先端寄り位置まで延びた１対の縦孔１５，１５を設けると共に、それら縦孔１５，１５内に１対のパイプ１６，１６を遊嵌して各パイプ１６，１６と各縦孔１５，１５の内面との間にパイプ外冷媒流路１５Ａ，１５Ａを形成し、パイプ１６，１６内のパイプ内冷媒流路１６Ａ，１６Ａとパイプ外冷媒流路１５Ａ，１５Ａの一方から他方へと冷媒が流れるようにした。
【選択図】図５An object of the present invention is to provide a punch die that can improve the yield of punch materials and reduce the processing cost, and can suppress defective molding of a workpiece.
A punch die 10 of the present invention has a punch 11 fixed to a punch holder 20, and a flat punch head 12 formed at the tip of the punch 11 is inserted into a forming hole 66A of a die 66. In the punch mold 10 for forming the thin case P, the entire punch 11 is formed in a flat plate shape in the same direction as the punch head 12, and is located at two positions near both ends in the width direction of the punch 11 from the base end surface of the punch 11. A pair of vertical holes 15, 15 extending to a position near the tip are provided, and a pair of pipes 16, 16 are loosely fitted in the vertical holes 15, 15 to each pipe 16, 16 and each vertical hole 15, 15. Are formed between the pipe inner refrigerant passages 15A and 15A and the pipe inner refrigerant passages 16A and 16A and the pipe outer refrigerant passages 15A and 15A. I did
[Selection] Figure 5

Description

本発明は、パンチの先端に形成された平板状のパンチヘッドをダイスの成形孔に挿入して薄型ケースを成形するパンチ金型に関する。   The present invention relates to a punch die for forming a thin case by inserting a flat punch head formed at the tip of a punch into a forming hole of a die.

従来のこの種のパンチ金型に備えたパンチとしては、例えば、図９に示したものが知られている。このパンチ１は、パンチヘッド４とは反対の基端側に円柱状のシャンク２が形成されており、そのシャンク２が、図示しないパンチホルダによって固定されていた。また、パンチ１の基端面から先端に向かって延びた冷却路３がパンチ１の中心部に形成され、その冷却路３を流れる冷媒によってパンチヘッド４の冷却が行われていた。なお、このようなパンチ１によって薄型ケースを成形することが可能なプレス機として、下記先行技術文献に記載のトランスファープレス機が知られている（例えば、特許文献１参照）。   As a punch provided in this type of conventional punch die, for example, the punch shown in FIG. 9 is known. In this punch 1, a cylindrical shank 2 is formed on the base end side opposite to the punch head 4, and the shank 2 is fixed by a punch holder (not shown). A cooling path 3 extending from the base end surface of the punch 1 toward the tip is formed in the center of the punch 1, and the punch head 4 is cooled by the refrigerant flowing through the cooling path 3. A transfer press machine described in the following prior art document is known as a press machine capable of forming a thin case with such a punch 1 (see, for example, Patent Document 1).

特開２００７−２６０７４０号公報（段落［００３２］〜［００４４］、第２図）JP 2007-260740 A (paragraphs [0032] to [0044], FIG. 2)

ところで、パンチは、工具鋼等の素材から削り出して製作されるが、従来のパンチ１は、円柱状のシャンク２を有しているために、円柱形又は角柱形の素材からの削り出しを強いられていた。そのため、シャンク２以外の平板状部分で取代（削り代）が多くなり、素材の歩留まりや加工コストの点で問題があった。   By the way, the punch is manufactured by cutting out from a material such as tool steel. However, since the conventional punch 1 has a cylindrical shank 2, it is possible to cut out from a cylindrical or prismatic material. It was forced. For this reason, there is an increase in machining allowance (cutting allowance) in flat plate portions other than the shank 2, and there are problems in terms of material yield and processing cost.

また、平板状のパンチヘッド４では、その幅方向の両端寄り部分においてワークとの摩擦熱が発生し易い。しかしながら、従来のパンチ１は、パンチヘッド４の幅方向の両端寄り部分を十分に冷却することが困難で、摩擦熱による成形不良（例えば、肌荒れなど）が発生し易いという問題があった。   Further, in the flat punch head 4, frictional heat with the workpiece is likely to be generated at portions near both ends in the width direction. However, the conventional punch 1 has a problem in that it is difficult to sufficiently cool portions near both ends in the width direction of the punch head 4 and molding defects (for example, rough skin) easily occur due to frictional heat.

本発明は、上記事情に鑑みてなされたものであって、パンチ素材の歩留まり向上及び加工コスト削減を図ると共に、ワークの成形不良を抑えることが可能なパンチ金型の提供を目的とする。   The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a punch die that can improve the yield of punch materials and reduce processing costs, and can suppress molding defects of workpieces.

上記目的を達成するためになされた請求項１の発明に係るパンチ金型は、パンチホルダにパンチを固定してなり、パンチの先端に形成された平板状のパンチヘッドを、ダイスの成形孔に挿入して薄形ケースを成形するパンチ金型において、パンチ全体をパンチヘッドと同じ方向に扁平な板状とし、パンチの幅方向の両端寄りの２位置に、パンチの基端面から先端寄り位置まで延びた１対の縦孔を設けると共に、それら縦孔内に１対のパイプを遊嵌して各パイプと各縦孔の内面との間にパイプ外冷媒流路を形成し、パイプ内のパイプ内冷媒流路とパイプ外冷媒流路の一方から他方へと冷媒が流れるようにしたところに特徴を有する。   In order to achieve the above object, a punch die according to the invention of claim 1 is formed by fixing a punch to a punch holder, and using a flat punch head formed at the tip of the punch as a die forming hole. In a punch mold that inserts and forms a thin case, the entire punch is flat in the same direction as the punch head, and is located at two positions near both ends in the width direction of the punch, from the base end face of the punch to the position near the tip. A pair of extended vertical holes are provided, and a pair of pipes are loosely fitted in the vertical holes to form a pipe external refrigerant flow path between each pipe and the inner surface of each vertical hole. It is characterized in that the refrigerant flows from one of the inner refrigerant channel and the pipe outer refrigerant channel to the other.

請求項２の発明は、請求項１に記載のパンチ金型において、１対の縦孔を、パンチヘッドの幅方向の両端部からパンチの幅のそれぞれ１／３以内の範囲に配置したところに特徴を有する。   According to a second aspect of the present invention, in the punch die according to the first aspect, the pair of vertical holes are arranged within a range of 1/3 of the width of the punch from both ends in the width direction of the punch head. Has characteristics.

請求項３の発明は、請求項１又は２に記載のパンチ金型において、パンチホルダに、パンチの基端部を受容してパンチを板厚方向と縦方向で位置決めする縦横位置決溝と、パンチの基端部の一端面と当接してパンチを幅方向で位置決めする幅方向位置決部とを設け、パンチの基端部に、両幅方向に突出した１対の基端突部を設けて、それら１対の基端突部を縦に貫通したボルトを縦横位置決溝の底面に形成した螺子に締め付けてパンチをパンチホルダに固定したところに特徴を有する。   The invention according to claim 3 is the punch die according to claim 1 or 2, wherein the punch holder receives the base end portion of the punch and positions the punch in the plate thickness direction and the longitudinal direction; A width direction positioning portion that contacts the one end surface of the base end portion of the punch to position the punch in the width direction is provided, and a pair of base end protrusions that protrude in both width directions are provided at the base end portion of the punch Thus, the punch is fixed to the punch holder by tightening a bolt vertically penetrating the pair of base end protrusions to a screw formed on the bottom surface of the vertical and horizontal positioning grooves.

請求項４の発明は、請求項１乃至３の何れか１の請求項に記載のパンチ金型において、パンチホルダに、１対の縦孔の延長線上に貫通形成された１対の延長縦孔と、１対の延長縦孔のうちパンチから離れた側の端部を拡径してなる１対の延長大径部と、１対の延長縦孔のうち１対の延長大径部の手前から側方に分岐してから屈曲して１対の延長大径部と平行に延びた１対の分岐路とを形成し、１対のパイプを１対の延長大径部から１対の縦孔に挿入すると共に、１対のパイプの基端部にパイプと延長大径部の内面との間を閉塞する１対の詰栓を設け、パンチホルダに重ねて固定され、１対の分岐路に連通する１対の第１流路と、１対のパイプに連通する１対の第２流路とを有し、それら１対の第１流路と１対の第２流路の端部開口が同じ方向を向いて開放した一側面を備えたマニホールドを設け、１対の第１流路及び１対の第２流路の端部開口にホースジョイントがそれぞれ取り付けられたところに特徴を有する。   According to a fourth aspect of the present invention, there is provided a punch die according to any one of the first to third aspects, wherein the punch holder is formed with a pair of extended vertical holes formed through the extension line of the pair of vertical holes. And a pair of extended large-diameter portions formed by expanding the end of the pair of extended vertical holes on the side away from the punch, and a pair of extended large-diameter portions in front of the pair of extended vertical holes. A pair of extended large-diameter portions and a pair of branch passages extending in parallel to form a pair of pipes from a pair of extended large-diameter portions. A pair of plugs that are inserted into the holes and closed between the pipe and the inner surface of the extended large-diameter portion are provided at the base ends of the pair of pipes, and overlapped with the punch holder and fixed. A pair of first flow paths communicating with each other and a pair of second flow paths communicating with a pair of pipes, and ends of the pair of first flow paths and the pair of second flow paths Same direction of opening Oriented manifold having one side that is open provided, having characterized in that a pair of first flow path and a pair of second flow path end opening to the hose joint of the are attached, respectively.

［請求項１及び２の発明］
請求項１の発明に係るパンチ金型は、パンチ全体をパンチヘッドと同じ方向に扁平な平板状とした上で、パンチの幅方向の両端寄りの２位置に、パンチの基端面から先端寄り位置まで延びた１対の縦孔を設け、それら縦孔内に遊嵌した１対のパイプと各縦孔の内面との間にパイプ外冷媒流路を形成すると共に、パイプ内のパイプ内冷媒流路とパイプ外冷媒流路の一方から他方へと冷媒が流れるように構成されている。このような構成としたことで、本発明に係るパンチを、扁平な平板素材から削り出すことが可能になる。これにより、取代を削減することができ、パンチ素材の歩留まり向上及び加工コスト削減を図ることができる。また、ワークとの摩擦熱が発生し易いパンチヘッドの幅方向の両端寄り部分を十分に冷却することができるから、ワークの成形不良を抑えることができる。 [Inventions of Claims 1 and 2]
The punch die according to the invention of claim 1 is a flat plate shape in which the entire punch is flat in the same direction as the punch head, and is located at two positions near the both ends in the width direction of the punch from the base end face of the punch toward the tip. A pair of longitudinal holes extending to the inside of the longitudinal holes, and a pipe outside refrigerant flow path is formed between the pair of pipes loosely fitted in the longitudinal holes and the inner surface of each longitudinal hole. The refrigerant is configured to flow from one of the path and the refrigerant flow path outside the pipe to the other. With such a configuration, the punch according to the present invention can be cut out from a flat plate material. Thereby, the machining allowance can be reduced, and the yield of punch materials can be improved and the processing cost can be reduced. In addition, since the portions near both ends in the width direction of the punch head that easily generate frictional heat with the workpiece can be sufficiently cooled, molding defects of the workpiece can be suppressed.

ここで、請求項２の発明のように、冷媒が流れる１対の縦孔を、パンチヘッドの幅方向の両端部からパンチの幅のそれぞれ１／３以内の範囲に配置すると特に冷却上、効果的である。   Here, as in the second aspect of the invention, when a pair of vertical holes through which the refrigerant flows are arranged within a range of 1/3 of the width of the punch from both ends in the width direction of the punch head, particularly in terms of cooling. Is.

［請求項３の発明］
請求項３の発明によれば、パンチは、縦横位置決溝と幅方向位置決部とによって互いに直交する３軸方向でパンチホルダに対して位置決めされ、その状態で、パンチの両幅方向に突出した１対の基端突部を縦に貫通したボルトによってパンチホルダに固定される。 [Invention of claim 3]
According to the invention of claim 3, the punch is positioned with respect to the punch holder in three axial directions orthogonal to each other by the longitudinal and lateral positioning grooves and the width direction positioning portion, and in this state, the punch projects in both width directions of the punch. The pair of base end protrusions are fixed to the punch holder by bolts vertically passing through the pair.

［請求項４の発明］
請求項４の発明によれば、第１流路の端部開口を冷媒の入口とし、第２流路の端部開口を冷媒の出口とした場合、第１流路に供給された冷媒は、分岐路からパイプ外冷媒流路を通ってパイプの先端からパイプ内冷媒流路に流入し、第２流路を通ってパンチ金型の外部に排出される。 [Invention of claim 4]
According to the invention of claim 4, when the end opening of the first flow path is the refrigerant inlet and the end opening of the second flow path is the refrigerant outlet, the refrigerant supplied to the first flow path is From the branch path, it passes through the pipe external refrigerant flow path, flows from the tip of the pipe into the pipe internal refrigerant flow path, and is discharged to the outside of the punch die through the second flow path.

一方、第２流路の端部開口を冷媒の入口とし、第１流路の端部開口を冷媒の出口とした場合、第２流路に供給された冷媒は、パイプ内冷媒流路を通ってパイプの先端からパイプ外冷媒流路に流出し、分岐路及び第１流路を通ってパンチ金型の外部に排出される。   On the other hand, when the end opening of the second flow path is used as the refrigerant inlet and the end opening of the first flow path is used as the refrigerant outlet, the refrigerant supplied to the second flow path passes through the refrigerant flow path in the pipe. Then, it flows out from the tip of the pipe to the refrigerant flow path outside the pipe, and is discharged out of the punch die through the branch path and the first flow path.

そして、１対の第１流路の端部開口と、１対の第２流路の端部開口が、マニホールドの同一側面に開放してそれら端部開口にホースジョイントが取り付けられているから、冷媒給排用のホースの接続作業をマニホールドに対して同一方向から行うことが可能になり、作業性の向上を図ることができる。   Since the end openings of the pair of first flow paths and the end openings of the pair of second flow paths open to the same side surface of the manifold, hose joints are attached to the end openings. It is possible to connect the refrigerant supply / discharge hose to the manifold from the same direction, thereby improving workability.

本発明の一実施形態に係るパンチ金型を備えたプレス機の側面図The side view of the press provided with the punch metal mold | die which concerns on one Embodiment of this invention. プレス機の正面図Front view of press machine パンチ金型の基端部の側断面図Side sectional view of the base end of the punch die パンチ金型の基端部の正断面図Front sectional view of the base end of the punch die パンチの（Ａ）側面図、（Ｂ）正面図(A) Side view of punch, (B) Front view パンチ金型によって成形された薄型ケースの斜視図Perspective view of thin case molded by punch mold 変形例に係るパンチ金型の基端部の側断面図Side sectional view of the base end of a punch die according to a modification 変形例に係るパンチ金型の基端部の正断面図Front sectional view of the base end of a punch die according to a modification 従来のパンチの（Ａ）側面図、（Ｂ）平面図(A) Side view of conventional punch, (B) Plan view

以下、本発明の一実施形態を図１〜図６に基づいて説明する。図１には、本発明のパンチ金型１０を備えたプレス機６０が示されている。このプレス機６０は、所謂、トランスファープレス機であって、可動型６１（上型）と固定型６２（下型）とを上下に対向配置して備える。可動型６１からは、複数のパンチ金型１０（図１には、１つのパンチ金型１０のみが示されている）が下方に向かって突出しており、それらパンチ金型１０は、水平方向（図２の左右方向）に１列に並べられている。   Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a press machine 60 provided with the punch die 10 of the present invention. The press machine 60 is a so-called transfer press machine, and includes a movable die 61 (upper die) and a fixed die 62 (lower die) that are vertically opposed to each other. A plurality of punch molds 10 (only one punch mold 10 is shown in FIG. 1) protrudes downward from the movable mold 61, and these punch molds 10 are arranged in the horizontal direction ( They are arranged in a line in the horizontal direction of FIG.

固定型６２は、ダイホルダー６３の中央部上面に複数のダイス６６を固定してなる。これらダイス６６は、パンチ金型１０に対応して水平方向（図２の左右方向）に１列に並べられると共に上面に開口した成形孔６６Ａを有する。そして、可動型６１が図示しないプレスラムによって昇降されることで、各パンチ金型１０に備えられたパンチ１１が、各成形孔６６Ａに突入し、これにより、ワークが各成形孔６６Ａに押し込まれて所定のプレス加工が施される。なお、成形孔６６Ａ内で成形されたワークは、成形孔６６Ａの奥部に備えられたノックアウト６７によって成形孔６６Ａから押し出される。   The fixed die 62 is formed by fixing a plurality of dies 66 on the upper surface of the central portion of the die holder 63. These dies 66 have molding holes 66A arranged in a line in the horizontal direction (left and right direction in FIG. 2) corresponding to the punch mold 10 and opened on the upper surface. Then, the movable die 61 is moved up and down by a press ram (not shown), so that the punch 11 provided in each punch die 10 enters the respective molding holes 66A, whereby the workpiece is pushed into each molding hole 66A. A predetermined pressing process is performed. The workpiece formed in the forming hole 66A is pushed out of the forming hole 66A by a knockout 67 provided in the inner part of the forming hole 66A.

これら各パンチ金型１０及び各ダイス６６からなる各加工ステージ（加工工程）の間でワークを搬送するために、ダイホルダー６３の上面には図示しないトランスファ装置が設けられている。トランスファ装置は、可動型６１が上下動する度に、隣の加工ステージ（ダイス６６）に順次ワークを搬送する。これにより、ワークに複数回のプレス加工が施されて、最終的に、図６に示す薄形ケースＰ（例えば、電池ケース）が成形される。なお、以下の説明では、加工ステージの並び方向と直交した水平方向（図１における左右方向）を「前後方向」という。   A transfer device (not shown) is provided on the upper surface of the die holder 63 in order to transport the workpiece between the processing stages (processing steps) including the punch dies 10 and the dies 66. Each time the movable die 61 moves up and down, the transfer device sequentially conveys the workpiece to the adjacent processing stage (die 66). As a result, the workpiece is subjected to press processing a plurality of times, and finally a thin case P (for example, a battery case) shown in FIG. 6 is formed. In the following description, the horizontal direction (left-right direction in FIG. 1) orthogonal to the direction in which the processing stages are arranged is referred to as “front-rear direction”.

さて、図１に示すように、本発明に係るパンチ金型１０は、パンチ１１とパンチホルダ２０とマニホールド３０とから構成されている。パンチ１１は、パンチホルダ２０によって可動型６１に固定されており、パンチホルダ２０の上面にマニホールド３０が重ねて固定されている。   As shown in FIG. 1, the punch die 10 according to the present invention includes a punch 11, a punch holder 20, and a manifold 30. The punch 11 is fixed to the movable die 61 by the punch holder 20, and the manifold 30 is overlapped and fixed on the upper surface of the punch holder 20.

パンチ１１は、工具鋼（例えば、ＳＫＤ１１）から削り出されたものであり、パンチ１１の先端には、ダイス６６の成形孔６６Ａとの間でワークを成形する（絞る又は絞りしごき）ためのパンチヘッド１２が形成されている。パンチヘッド１２は縦長の長方形平板状をなしており（図５（Ａ）参照）、パンチヘッド１２を含むパンチ１１全体が、パンチヘッド１２と同じ方向で扁平な平板状をなしている（図５（Ｂ）参照）。パンチ１１のうち、パンチヘッド１２より基端側のパンチボディ１３は、パンチヘッド１２よりも幅狭かつ肉厚な平板状をなしている。また、パンチボディ１３の全長は、パンチヘッド１２よりも長くなっており、パンチボディ１３の基端部には、その両幅方向に突出した１対の基端突部１４，１４が設けられている。これら１対の基端突部１４，１４が突出したことで、パンチ１１の基端部が、パンチヘッド１２よりも幅広かつ肉厚な長方形平板状となっている。なお、パンチヘッド１２のうち、パンチボディ１３よりも側方に張り出した部分には１対の空気導入孔１８，１８が形成されている。これら空気導入孔１８，１８は、パンチヘッド１２を縦方向に貫通しており、パンチヘッド１２をワークから引き抜く際に、ワークの内側が減圧されてワークが凹むことを防ぐために設けられている。   The punch 11 is cut out from tool steel (for example, SKD11), and a punch for forming (squeezing or squeezing and squeezing) a workpiece between the tip of the punch 11 and the forming hole 66A of the die 66. A head 12 is formed. The punch head 12 has a vertically long rectangular flat plate shape (see FIG. 5A), and the entire punch 11 including the punch head 12 has a flat plate shape in the same direction as the punch head 12 (FIG. 5). (See (B)). Of the punch 11, the punch body 13 on the base end side of the punch head 12 has a flat plate shape that is narrower and thicker than the punch head 12. Further, the entire length of the punch body 13 is longer than that of the punch head 12, and a pair of base end projections 14, 14 projecting in both width directions are provided at the base end of the punch body 13. Yes. By projecting the pair of base end protrusions 14, 14, the base end portion of the punch 11 has a rectangular flat plate shape wider and thicker than the punch head 12. A pair of air introduction holes 18 and 18 are formed in a portion of the punch head 12 that protrudes to the side of the punch body 13. These air introduction holes 18 and 18 penetrate the punch head 12 in the vertical direction, and are provided in order to prevent the work from being recessed due to decompression of the inside of the work when the punch head 12 is pulled out of the work.

パンチホルダ２０は、加工ステージの並び方向で扁平な金属ブロックで構成されており、その下端部には、縦横位置決溝２１が形成されている。縦横位置決溝２１は、パンチホルダ２０の下面及び前後両面に開放した断面矩形の角溝であり、その溝幅はパンチ１１の基端部の板厚と略同一となっている。縦横位置決溝２１には、パンチ１１の基端部が受容され、パンチ１１の基端面と縦横位置決溝２１の底面とが面当接している。縦横位置決溝２１によって、パンチ１１が板厚方向（加工ステージの並び方向）と縦方向（上下方向）とで位置決めされている。   The punch holder 20 is composed of a metal block that is flat in the direction in which the processing stages are arranged, and vertical and horizontal positioning grooves 21 are formed at the lower end thereof. The longitudinal and lateral positioning grooves 21 are rectangular grooves having a rectangular cross section opened on the lower surface and both front and rear surfaces of the punch holder 20, and the groove width is substantially the same as the thickness of the base end portion of the punch 11. The base end portion of the punch 11 is received in the vertical and horizontal positioning grooves 21, and the base end surface of the punch 11 and the bottom surface of the vertical and horizontal positioning grooves 21 are in surface contact. The punch 11 is positioned by the vertical and horizontal positioning grooves 21 in the plate thickness direction (processing stage alignment direction) and the vertical direction (vertical direction).

パンチホルダ２０の下端部前面には、幅方向位置決部材２２（本発明の「幅方向位置決部」に相当する）が取り付けられている。幅方向位置決部材２２は、略直方体形の金属ブロックで構成されており、縦横位置決溝２１を水平方向に跨いだ状態で、パンチホルダ２０の前面に面当接している（図２参照）。そして、幅方向位置決部材２２の両端部を貫通した１対のボルトＢ４，Ｂ４を、パンチホルダ２０の前面に形成された螺子孔（図示せず）に締め付けることで、パンチホルダ２０に固定されている。   A width direction positioning member 22 (corresponding to the “width direction positioning portion” of the present invention) is attached to the front surface of the lower end portion of the punch holder 20. The width direction positioning member 22 is formed of a substantially rectangular parallelepiped metal block, and is in surface contact with the front surface of the punch holder 20 in a state of straddling the vertical and horizontal positioning grooves 21 in the horizontal direction (see FIG. 2). . The pair of bolts B4 and B4 penetrating both ends of the width direction positioning member 22 are fastened to a screw hole (not shown) formed on the front surface of the punch holder 20 to be fixed to the punch holder 20. ing.

幅方向位置決部材２２は、パンチ１１の基端部の一端面と当接して、そのパンチ１１を幅方向（前後方向）で位置決めしている。詳細には、パンチ１１の基端部から突出した１対の基端突部１４，１４のうち、一方の基端突部１４の端面が幅方向位置決部材２２に面当接している。また、幅方向位置決部材２２を貫通した複数のボルトＢ５，Ｂ５（図２参照）が、基端突部１４に形成された複数の各螺子孔Ｎ５，Ｎ５（図５参照）に締め付けられている。これにより、パンチ１１の基端部の一端面が、パンチホルダ２０の前面と面一状態になっている。   The width direction positioning member 22 is in contact with one end face of the base end portion of the punch 11 to position the punch 11 in the width direction (front-rear direction). Specifically, of the pair of base end protrusions 14, 14 protruding from the base end portion of the punch 11, the end face of one base end protrusion 14 is in surface contact with the width direction positioning member 22. Further, a plurality of bolts B5 and B5 (see FIG. 2) penetrating the width direction positioning member 22 are tightened in a plurality of screw holes N5 and N5 (see FIG. 5) formed in the base end protrusion 14. Yes. Thereby, the one end surface of the base end part of the punch 11 is flush with the front surface of the punch holder 20.

つまり、パンチ１１は、縦横位置決溝２１及び幅方向位置決部材２２によって互いに直交する３軸方向（前後、左右、上下の各方向）でパンチホルダ２０に対して位置決めされている。   That is, the punch 11 is positioned with respect to the punch holder 20 in three axial directions (front and rear, left and right, and upper and lower directions) orthogonal to each other by the vertical and horizontal positioning grooves 21 and the width direction positioning members 22.

上記の如くパンチホルダ２０に対して位置決めされたパンチ１１は、複数のボルトＢ１，Ｂ２によってパンチホルダ２０に固定されている。具体的には、図３に示すように、パンチ１１に形成された１対の基端突部１４，１４を、１対のボルトＢ１，Ｂ１が縦に貫通しており、それら１対のボルトＢ１，Ｂ１が、縦横位置決溝２１の底面に形成した螺子孔Ｎ１，Ｎ１に締め付けられている。また、パンチホルダ２０の前後方向の中央部を縦にセンター孔２０Ａが貫通しており、そのセンター孔２０Ａに挿入されて縦横位置決溝２１の底面から突出したボルトＢ２が、パンチ１１の基端面に形成された螺子孔Ｎ２に締め付けられている。これら３本のボルトＢ１，Ｂ２によってパンチ１１とパンチホルダ２０とが固定されている。   The punch 11 positioned with respect to the punch holder 20 as described above is fixed to the punch holder 20 with a plurality of bolts B1 and B2. Specifically, as shown in FIG. 3, a pair of bolts B1 and B1 vertically penetrates a pair of base end protrusions 14 and 14 formed on the punch 11, and the pair of bolts B1 and B1 are fastened to screw holes N1 and N1 formed on the bottom surface of the vertical and horizontal positioning grooves 21. Further, a center hole 20 </ b> A passes vertically through the center of the punch holder 20 in the front-rear direction, and a bolt B <b> 2 that is inserted into the center hole 20 </ b> A and protrudes from the bottom surface of the vertical / horizontal positioning groove 21 is The screw hole N2 is formed in the screw hole N2. The punch 11 and the punch holder 20 are fixed by these three bolts B1 and B2.

パンチホルダ２０の上面に重ねられたマニホールド３０は、前後方向に延びた略直方体形の金属ブロックで構成されている。図３に示すように、マニホールド３０の前後方向の両端部を１対のボルトＢ３，Ｂ３が縦に貫通しており、それら１対のボルトＢ３，Ｂ３が、パンチホルダ２０の上面に形成された１対の螺子孔Ｎ３，Ｎ３に締め付けられている。   The manifold 30 overlaid on the upper surface of the punch holder 20 is composed of a substantially rectangular parallelepiped metal block extending in the front-rear direction. As shown in FIG. 3, a pair of bolts B3 and B3 vertically penetrates both ends in the front-rear direction of the manifold 30, and the pair of bolts B3 and B3 are formed on the upper surface of the punch holder 20. It is fastened to a pair of screw holes N3, N3.

さて、図５（Ａ）に示すように、パンチ１１の幅方向の両端寄りの２位置には、パンチ１１の基端面から先端寄り位置まで延びた１対の縦孔１５，１５が設けられている。これら各縦孔１５，１５内には、１対のパイプ１６，１６を遊嵌しており、パイプ１６，１６と縦孔１５，１５の内面との間には、パイプ外冷媒流路１５Ａ，１５Ａが形成されている。ここで、１対の縦孔１５，１５は、パンチヘッド１２の幅方向の両端部からパンチ１１の幅のそれぞれ１／３以内の範囲に配置されている。なお、１対の縦孔１５，１５は、前記した空気導入孔１８，１８よりも大きい一定の内径を有している。   As shown in FIG. 5A, a pair of vertical holes 15 and 15 extending from the base end surface of the punch 11 to the tip end position are provided at two positions near both ends in the width direction of the punch 11. Yes. A pair of pipes 16, 16 are loosely fitted in these vertical holes 15, 15, and an outside pipe refrigerant flow path 15 </ b> A, between the pipes 16, 16 and the inner surfaces of the vertical holes 15, 15. 15A is formed. Here, the pair of vertical holes 15, 15 are disposed within a range of 1/3 of the width of the punch 11 from both ends in the width direction of the punch head 12. The pair of vertical holes 15 and 15 have a constant inner diameter larger than that of the air introduction holes 18 and 18 described above.

図３に示すように、パンチホルダ２０の内部には、１対の縦孔１５，１５の延長線上に貫通形成された１対の延長縦孔２３，２３と、１対の延長縦孔２３，２３のうちパンチ１１から離れた側の端部を拡径してなる１対の延長大径部２４，２４とが形成されている。また、図４に示すように、パンチホルダ２０の内部には、１対の延長縦孔２３，２３のうち、１対の延長大径部２４，２４の手前から側方に分岐してから屈曲して１対の延長大径部２４，２４と平行に延びた１対の第１分岐路２５，２５（本発明の「１対の分岐路」に相当する）と、１対の延長大径部２４，２４から側方に分岐してから屈曲して１対の延長大径部２４，２４と平行に延びた１対の第２分岐路２６，２６とが形成されている（図４には、第１分岐路２５と第２分岐路２６が、それぞれ１つだけ示されている）。ここで、パンチ１１に形成された縦孔１５，１５と、パンチホルダ２０に形成された延長縦孔２３，２３との接続部分は、シール部材２７（例えば、Ｏリング）によってシールされている。また、図４における符号２９は、閉止栓である。   As shown in FIG. 3, inside the punch holder 20, a pair of extended vertical holes 23, 23 formed through the extension lines of the pair of vertical holes 15, 15, and a pair of extended vertical holes 23, A pair of extended large-diameter portions 24, 24 formed by expanding the end portion of the portion 23 away from the punch 11 is formed. As shown in FIG. 4, the punch holder 20 is bent after branching from the front of the pair of extended large diameter portions 24, 24 to the side of the pair of extended vertical holes 23, 23. Thus, a pair of first branch passages 25, 25 (corresponding to “one pair of branch passages” of the present invention) extending in parallel with the pair of extended large diameter portions 24, 24, and a pair of extended large diameter portions. A pair of second branch passages 26 and 26 are formed which branch from the portions 24 and 24 to the side and then bend and extend in parallel with the pair of extended large diameter portions 24 and 24 (see FIG. 4). Shows only one first branch 25 and one second branch 26). Here, connecting portions between the vertical holes 15 and 15 formed in the punch 11 and the extended vertical holes 23 and 23 formed in the punch holder 20 are sealed by a seal member 27 (for example, an O-ring). Moreover, the code | symbol 29 in FIG. 4 is a closure plug.

１対のパイプ１６，１６は、パンチホルダ２０に形成された１対の延長大径部２４，２４から、パンチ１１内の縦孔１５，１５に挿入されている。また、１対のパイプ１６，１６の基端部には、１対の詰栓１７，１７が取り付けられている。これら詰栓１７，１７は円柱状をなしており、延長大径部２４，２４の内側に嵌合して、パイプ１６，１６と延長大径部２４，２４の内面との間を閉塞している。また、詰栓１７，１７は中空構造をなしており、その中空部１７Ａ，１７Ａを介して、パイプ１６，１６内のパイプ内冷媒流路１６Ａ，１６Ａと第２分岐路２６，２６とが連通している。なお、図３及び図４における符号１９は、閉止栓である。   The pair of pipes 16 and 16 are inserted into the vertical holes 15 and 15 in the punch 11 from the pair of extended large diameter portions 24 and 24 formed in the punch holder 20. A pair of plugs 17, 17 are attached to the base ends of the pair of pipes 16, 16. These plugs 17 and 17 have a cylindrical shape and are fitted inside the extended large diameter portions 24 and 24 to block between the pipes 16 and 16 and the inner surfaces of the extended large diameter portions 24 and 24. Yes. The plugs 17 and 17 have a hollow structure, and the refrigerant flow paths 16A and 16A in the pipes 16 and 16 and the second branch paths 26 and 26 communicate with each other through the hollow portions 17A and 17A. doing. In addition, the code | symbol 19 in FIG.3 and FIG.4 is a closure plug.

マニホールド３０の内部には、１対の第１分岐路２５，２５と連通した１対の第１流路３１，３１と、１対の第２分岐路２６，２６と連通した１対の第２流路３２，３２とが形成されている（図４参照）。第１流路３１，３１は、第１分岐路２５，２５の延長線上で上方に延びてから屈曲して、マニホールド３０の前面（図４の紙面手前側）に向かって水平に延びている。一方、第２流路３２，３２は、第２分岐路２６，２６の延長線上で上方に延びてから屈曲して、マニホールド３０の前面（図４の紙面手前側）に向かって水平に延びている。そして、これら第１流路３１，３１及び第２流路３２，３２の端部開口が、全て、マニホールド３０の前面に開放している。詳細には、１対の第１流路３１，３１の端部開口が、マニホールド３０の前面左側に上下に並んで配設されており、１対の第２流路３２，３２の端部開口が、マニホールド３０の前面右側に上下に並んで配設されている。さらに、これら４つの各端部開口には、それぞれホースジョイント３１Ｊ，３２Ｊが取り付けられている（図２参照）。なお、第１流路３１，３１と第１分岐路２５，２５との接続部分及び、第２流路３２，３２と第２分岐路２６，２６との接続部分は、それぞれシール部材２８，２８（例えば、Ｏリング）によってシールされている。   Inside the manifold 30, a pair of first flow paths 31, 31 communicating with the pair of first branch paths 25, 25 and a pair of second flow paths communicating with the pair of second branch paths 26, 26. Channels 32 and 32 are formed (see FIG. 4). The first flow paths 31, 31 extend upward on the extension lines of the first branch paths 25, 25 and then bend, and extend horizontally toward the front surface of the manifold 30 (the front side in FIG. 4). On the other hand, the second flow paths 32, 32 extend upward on the extension line of the second branch paths 26, 26 and then bend, and extend horizontally toward the front surface of the manifold 30 (the front side in FIG. 4). Yes. The end openings of the first flow paths 31 and 31 and the second flow paths 32 and 32 are all open to the front surface of the manifold 30. Specifically, the end openings of the pair of first flow paths 31, 31 are arranged vertically on the front left side of the manifold 30, and the end openings of the pair of second flow paths 32, 32 are arranged. Are arranged on the front right side of the manifold 30 side by side. Furthermore, hose joints 31J and 32J are respectively attached to the four end openings (see FIG. 2). The connecting portions between the first flow paths 31 and 31 and the first branch paths 25 and 25 and the connecting sections between the second flow paths 32 and 32 and the second branch paths 26 and 26 are respectively sealed members 28 and 28. It is sealed by (for example, O-ring).

各ホースジョイント３１Ｊ，３２Ｊには、それぞれ冷媒給排用のホース（図示せず）が接続される。例えば、第２流路３２，３２のホースジョイント３２Ｊ，３２Ｊには冷媒供給用のホースが接続され、第１流路３１，３１のホースジョイント３１Ｊ，３１Ｊには冷媒排出用のホースが接続される。このとき、冷媒は、以下のようにしてパンチ金型１０内を流れる。即ち、マニホールド３０の第２流路３２からパンチ金型１０内に流入した冷媒は、第２分岐路２６及び中空部１７Ａを経由してパイプ内冷媒流路１６Ａに進入する。パイプ内冷媒流路１６Ａを通過した冷媒は、パイプ１６の先端からパイプ外冷媒流路１５Ａに流出し、第１分岐路２５及び第１流路３１を通ってパンチ金型１０の外部に排出される。そして、パイプ内冷媒流路１６Ａ及びパイプ外冷媒流路１５Ａを流れる冷媒によってパンチヘッド１２が冷却される。   A refrigerant supply / discharge hose (not shown) is connected to each of the hose joints 31J and 32J. For example, a hose for supplying refrigerant is connected to the hose joints 32J and 32J of the second flow paths 32 and 32, and a hose for discharging refrigerant is connected to the hose joints 31J and 31J of the first flow paths 31 and 31. . At this time, the refrigerant flows in the punch die 10 as follows. That is, the refrigerant that has flowed into the punch mold 10 from the second flow path 32 of the manifold 30 enters the in-pipe refrigerant flow path 16A via the second branch path 26 and the hollow portion 17A. The refrigerant that has passed through the in-pipe refrigerant flow path 16A flows out from the tip of the pipe 16 to the pipe external refrigerant flow path 15A, passes through the first branch path 25 and the first flow path 31, and is discharged to the outside of the punch die 10. The Then, the punch head 12 is cooled by the refrigerant flowing through the in-pipe refrigerant flow path 16A and the out-pipe refrigerant flow path 15A.

このように、本実施形態のパンチ金型１０によれば、パンチ１１全体をパンチヘッド１２と同じ方向に扁平な板状とした上で、パンチ１１の幅方向の両端寄りの２位置、より詳細には、パンチヘッド１２の幅方向の両端部からパンチ１１の幅のそれぞれ１／３以内の範囲に、パンチ１１の基端面から先端寄り位置まで延びた１対の縦孔１５，１５を設け、それら縦孔１５，１５内に遊嵌した１対のパイプ１６，１６と各縦孔１５，１５の内面との間にパイプ外冷媒流路１５Ａ，１５Ａを形成し、パイプ内冷媒流路１６Ａ，１６Ａとパイプ外冷媒流路１５Ａ，１５Ａの一方から他方へと冷媒が流れるように構成されている。このような構成としたことで、パンチ１１を扁平な板状素材から削り出すことが可能になる。これにより、取代を削減することができ、パンチ素材の歩留まり向上及び加工コスト削減を図ることができる。また、パンチヘッド１２の幅方向の両端寄り部分を十分に冷却することができ、摩擦熱によるワークの成形不良を抑えることができる。   As described above, according to the punch die 10 of the present embodiment, the entire punch 11 is formed into a flat plate shape in the same direction as the punch head 12, and the two positions near both ends in the width direction of the punch 11 are more detailed. Are provided with a pair of vertical holes 15, 15 extending from the base end face of the punch 11 to a position closer to the front end within a range of 1/3 of the width of the punch 11 from both ends in the width direction of the punch head 12, Between the pair of pipes 16 and 16 loosely fitted in the vertical holes 15 and 15 and the inner surfaces of the vertical holes 15 and 15 are formed refrigerant flow paths 15A and 15A outside the pipes. The refrigerant is configured to flow from one of the 16A and the pipe outside refrigerant flow paths 15A and 15A to the other. With such a configuration, the punch 11 can be cut out from a flat plate-shaped material. Thereby, the machining allowance can be reduced, and the yield of punch materials can be improved and the processing cost can be reduced. Moreover, the part near the both ends of the punch head 12 in the width direction can be sufficiently cooled, and the molding failure of the workpiece due to frictional heat can be suppressed.

また、１対の第１流路３１，３１の端部開口と、１対の第２流路３２，３２の端部開口が、マニホールド３０の同一側面（前面）に開放してそれら端部開口にホースジョイント３１Ｊ、３２Ｊが取り付けられているから、冷媒給排用のホースの接続作業を、マニホールド３０に対して同一方向から行うことができ、作業性の向上を図ることができる。   Further, the end openings of the pair of first flow paths 31 and 31 and the end openings of the pair of second flow paths 32 and 32 open to the same side surface (front surface) of the manifold 30 so that the end openings are open. Since the hose joints 31J and 32J are attached to each other, the refrigerant supply / discharge hose can be connected to the manifold 30 from the same direction, and the workability can be improved.

なお、本実施形態のパンチ金型１０では、パンチ１１の基端部がその両幅方向に張り出した長方形平板状となっており、そのパンチ１１の基端部をパンチホルダ２０に形成された角溝形の縦横位置決溝２１に受容させた状態で、それらパンチ１１とパンチホルダ２０とを複数のボルトＢ１，Ｂ２によって固定した固定構造としたので、パンチ１１のうち、パンチホルダ２０による保持部分を、従来のシャンクよりも短くすることができた。   In the punch mold 10 of the present embodiment, the base end portion of the punch 11 has a rectangular flat plate shape projecting in both width directions, and the base end portion of the punch 11 is formed at the corner formed on the punch holder 20. Since the punch 11 and the punch holder 20 are fixed by a plurality of bolts B1 and B2 in a state of being received in the groove-shaped vertical and horizontal positioning grooves 21, the holding portion of the punch 11 by the punch holder 20 is used. Can be made shorter than the conventional shank.

［他の実施形態］
本発明は、前記実施形態に限定されるものではなく、例えば、以下に説明するような実施形態も本発明の技術的範囲に含まれ、さらに、下記以外にも要旨を逸脱しない範囲内で種々変更して実施することができる。 [Other Embodiments]
The present invention is not limited to the above-described embodiment. For example, the embodiments described below are also included in the technical scope of the present invention, and various other than the following can be made without departing from the scope of the invention. It can be changed and implemented.

（１）上記実施形態では、１対の第２流路３２，３２の端部開口に取り付けられたホースジョイント３２Ｊ，３２Ｊを冷媒の入口とし、１対の第１流路３１，３１の端部開口に取り付けられたホースジョイント３１Ｊ，３１Ｊを冷媒の出口としていたが、これらを逆にしてもよい。即ち、第１流路３１，３１からパンチ金型１０内に流入した冷媒が、第１分岐路２５，２５及びパイプ外冷媒流路１５Ａ，１５Ａを通ってパイプ１６，１６の先端からパイプ内冷媒流路１６Ａ，１６Ａに流入し、さらに、中空部１７Ａ，１７Ａ、第２分岐路２６，２６、第２流路３２，３２を通って、パンチ金型１０の外部に排出されるようにしてもよい。   (1) In the above embodiment, the hose joints 32J, 32J attached to the end openings of the pair of second flow paths 32, 32 are used as refrigerant inlets, and the ends of the pair of first flow paths 31, 31 are used. Although the hose joints 31J and 31J attached to the openings are used as the refrigerant outlet, these may be reversed. That is, the refrigerant that has flowed into the punch mold 10 from the first flow paths 31 and 31 passes through the first branch paths 25 and 25 and the pipe external refrigerant flow paths 15A and 15A, and reaches the pipe internal refrigerant from the ends of the pipes 16 and 16. It flows into the flow paths 16A and 16A, and is further discharged to the outside of the punch die 10 through the hollow portions 17A and 17A, the second branch paths 26 and 26, and the second flow paths 32 and 32. Good.

（２）上記実施形態では、縦孔１５，１５内に遊嵌したパイプ１６，１６とマニホールド３０に形成された第２流路３２，３２とが、詰栓１７，１７の中空部１７Ａ，１７Ａ及びパンチホルダ２０の第２分岐路２６，２６を介して連通していたが、例えば、図７及び図８に示すように、第２分岐路を設けず、中空部１７Ａ，１７Ａと第２流路３２，３２とを直接連通させてもよい。   (2) In the above embodiment, the pipes 16 and 16 loosely fitted in the vertical holes 15 and the second flow paths 32 and 32 formed in the manifold 30 are the hollow portions 17A and 17A of the plugs 17 and 17, respectively. And the second branch passages 26 and 26 of the punch holder 20 are communicated. For example, as shown in FIGS. 7 and 8, the second branch passage is not provided, and the hollow portions 17A and 17A are connected to the second flow passage. The paths 32 and 32 may be directly communicated with each other.

（３）上記実施形態では、可動型６１と固定型６２とを上下に対向配置して備え、パンチ金型１０のパンチ１１がダイス６６の成形孔６６Ａに対して上下方向で進退するように構成されていたが、成形孔６６Ａに対するパンチ１１の進退方向は、上下方向に限定するものではなく、例えば、上記した可動型６１と固定型６２を水平方向で対向配置してもよい。   (3) In the above embodiment, the movable die 61 and the fixed die 62 are provided so as to face each other in the vertical direction, and the punch 11 of the punch die 10 is configured to advance and retract in the vertical direction with respect to the forming hole 66A of the die 66. However, the advancing / retreating direction of the punch 11 with respect to the forming hole 66A is not limited to the vertical direction. For example, the movable mold 61 and the fixed mold 62 described above may be arranged to face each other in the horizontal direction.

１０ パンチ金型
１１ パンチ
１２ パンチヘッド
１４ 基端突部
１５ 縦孔
１５Ａ パイプ外冷媒流路
１６ パイプ
１６Ａ パイプ内冷媒流路
１７ 詰栓
２０ パンチホルダ
２１ 縦横位置決溝
２２ 幅方向位置決部材（幅方向位置決部）
２３ 延長縦孔
２４ 延長大径部
２５ 第１分岐路（分岐路）
３０ マニホールド
３１ 第１流路
３２ 第２流路
３１Ｊ ホースジョイント
３２Ｊ ホースジョイント
６６ ダイス
６６Ａ 成形孔 DESCRIPTION OF SYMBOLS 10 Punch die 11 Punch 12 Punch head 14 Base end protrusion 15 Vertical hole 15A Refrigerant flow path outside pipe 16 Pipe 16A Refrigerant flow path in pipe 17 Plug 20 Punch holder 21 Vertical / horizontal positioning groove 22 Width direction positioning member (width) Direction positioning part)
23 Extension vertical hole 24 Extension large diameter part 25 First branch (branch)
30 Manifold 31 First channel 32 Second channel 31J Hose joint 32J Hose joint 66 Die 66A Molding hole

Claims (4)

パンチホルダにパンチを固定してなり、前記パンチの先端に形成された平板状のパンチヘッドを、ダイスの成形孔に挿入して薄形ケースを成形するパンチ金型において、
前記パンチ全体を前記パンチヘッドと同じ方向に扁平な板状とし、
前記パンチの幅方向の両端寄りの２位置に、前記パンチの基端面から先端寄り位置まで延びた１対の縦孔を設けると共に、それら縦孔内に１対のパイプを遊嵌して各前記パイプと各前記縦孔の内面との間にパイプ外冷媒流路を形成し、
前記パイプ内のパイプ内冷媒流路と前記パイプ外冷媒流路の一方から他方へと冷媒が流れるようにしたことを特徴とするパンチ金型。 In a punch mold in which a punch is fixed to a punch holder, and a flat punch head formed at the tip of the punch is inserted into a die forming hole to form a thin case,
The whole punch has a flat plate shape in the same direction as the punch head,
A pair of vertical holes extending from the base end face of the punch to the position near the tip are provided at two positions near both ends in the width direction of the punch, and a pair of pipes are loosely fitted in the vertical holes to each of the above-mentioned punch holes. Forming a refrigerant flow path outside the pipe between the pipe and the inner surface of each longitudinal hole;
A punch mold, wherein the refrigerant flows from one of the in-pipe refrigerant flow path and the non-pipe refrigerant flow path in the pipe to the other. 前記１対の縦孔を、前記パンチヘッドの幅方向の両端部から前記パンチの幅のそれぞれ１／３以内の範囲に配置したことを特徴とする請求項１に記載のパンチ金型。   2. The punch die according to claim 1, wherein the pair of vertical holes are arranged within a range of 1/3 of the width of the punch from both ends in the width direction of the punch head. 3. 前記パンチホルダに、前記パンチの基端部を受容して前記パンチを板厚方向と縦方向で位置決めする縦横位置決溝と、前記パンチの基端部の一端面と当接して前記パンチを幅方向で位置決めする幅方向位置決部とを設け、
前記パンチの基端部に、両幅方向に突出した１対の基端突部を設けて、それら１対の基端突部を縦に貫通したボルトを前記縦横位置決溝の底面に形成した螺子に締め付けて前記パンチを前記パンチホルダに固定したことを特徴とする請求項１又は２に記載のパンチ金型。 The punch holder receives the base end portion of the punch and positions the punch in the plate thickness direction and the vertical direction, and contacts the end surface of the base end portion of the punch with the width of the punch. And a width direction positioning part for positioning in the direction,
A pair of base end protrusions projecting in both width directions are provided at the base end portion of the punch, and a bolt vertically passing through the pair of base end protrusions is formed on the bottom surface of the vertical and horizontal positioning grooves. The punch die according to claim 1 or 2, wherein the punch is fixed to the punch holder by being fastened to a screw. 前記パンチホルダに、前記１対の縦孔の延長線上に貫通形成された１対の延長縦孔と、前記１対の延長縦孔のうち前記パンチから離れた側の端部を拡径してなる１対の延長大径部と、前記１対の延長縦孔のうち前記１対の延長大径部の手前から側方に分岐してから屈曲して前記１対の延長大径部と平行に延びた１対の分岐路とを形成し、
前記１対のパイプを前記１対の延長大径部から前記１対の縦孔に挿入すると共に、前記１対のパイプの基端部に前記パイプと前記延長大径部の内面との間を閉塞する１対の詰栓を設け、
前記パンチホルダに重ねて固定され、前記１対の分岐路に連通する１対の第１流路と、前記１対のパイプに連通する１対の第２流路とを有し、それら１対の第１流路と１対の第２流路の端部開口が同じ方向を向いて開放した一側面を備えたマニホールドを設け、
前記１対の第１流路及び前記１対の第２流路の端部開口にホースジョイントがそれぞれ取り付けられたことを特徴とする請求項１乃至３の何れか１の請求項に記載のパンチ金型。 In the punch holder, a pair of extended vertical holes penetratingly formed on an extension line of the pair of vertical holes, and an end of the pair of extended vertical holes on the side away from the punch are expanded in diameter. A pair of extended large-diameter portions and a pair of extended vertical holes that branch from the front to the side of the pair of extended large-diameter portions and then bend to be parallel to the pair of extended large-diameter portions. A pair of branch paths extending to
The pair of pipes are inserted into the pair of vertical holes from the pair of extended large diameter portions, and a gap between the pipe and the inner surface of the extended large diameter portion is provided at a base end portion of the pair of pipes. Provide a pair of plugs to close,
A pair of first flow paths fixed to the punch holder and communicated with the pair of branch paths, and a pair of second flow paths communicated with the pair of pipes. Providing a manifold having one side surface in which the end openings of the first flow path and the pair of second flow paths are open in the same direction;
The punch according to any one of claims 1 to 3, wherein hose joints are respectively attached to end openings of the pair of first flow paths and the pair of second flow paths. Mold.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109261811A (en) * 2018-11-12 2019-01-25 东莞市骏毅机电科技有限公司 A kind of formed punch and stamping device
CN109261811B (en) * 2018-11-12 2023-12-29 东莞市骏毅机电科技有限公司 Punch and stamping device

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