JP4876823B2 - Sequential molding equipment - Google Patents

Sequential molding equipment Download PDF

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JP4876823B2
JP4876823B2 JP2006262726A JP2006262726A JP4876823B2 JP 4876823 B2 JP4876823 B2 JP 4876823B2 JP 2006262726 A JP2006262726 A JP 2006262726A JP 2006262726 A JP2006262726 A JP 2006262726A JP 4876823 B2 JP4876823 B2 JP 4876823B2
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molding
pressing
electrode
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JP2008080359A (en
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修平 山口
公 山田
智久 鈴木
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アイシン精機株式会社
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/005Incremental shaping or bending, e.g. stepwise moving a shaping tool along the surface of the workpiece

Description

本発明は、板材に押圧部材を押し当てながら、押圧部材を移動させて被成形材を所定の立体形状に成形加工する逐次成形装置に関するものである。  The present invention relates to a sequential forming apparatus that moves a pressing member while pressing the pressing member against a plate material, and forms the material to be molded into a predetermined three-dimensional shape.
従来、自動車の部品などを大量生産するための塑性加工方法として、金型を使用したプレス加工が広く用いられている。しかしながら、プレス装置及び金型による加工では設備が大型化するとともに金型製作費が高価であるため、消費者ニーズの多様化に対応した多品種少量生産に適する経済性に優れた新たな加工方法が求められている。また、プレス加工では製作できる部品の形状に制約があり、より複雑な形状の部品も製作できる高度な加工方法が必要になってきている。これらの要望に応えて、近年逐次成形方法が実用化され、生産設備として普及しつつある。  2. Description of the Related Art Conventionally, press working using a mold has been widely used as a plastic working method for mass-producing automobile parts. However, since processing with a press machine and molds increases the size of the equipment and the cost of manufacturing the molds, new processing methods with excellent economic efficiency suitable for high-mix low-volume production in response to diversifying consumer needs Is required. In addition, the shape of parts that can be manufactured by press working is limited, and an advanced processing method capable of manufacturing parts with more complicated shapes is required. In response to these demands, a sequential molding method has recently been put into practical use and is becoming popular as a production facility.
逐次成形装置は、概ね以下の構成となる。被成形材の一側に多次元的に移動する押圧部材を有する。そして、被成形材の他側に基台に固着されたダイスを備えており、同一基台上に被成形材を把持する把持部材が、ダイスと水平方向及び垂直方向において干渉し無い位置に配設され、且つ、ダイス4の周囲に配設される。このことより、特定の形状を有した金型を用いなくても、押圧部材と被成形材をダイスに対して相対移動させることにより被成形材を所定の立体形状を成形することが出来る。この押圧部材及びダイスは制御装置により数値制御されており、成形品の形状が変更されても、制御数値を変更することにより、金型を製作することなく異なる成形品の製作が出来る。(特許文献1)
しかし、逐次成形の場合、常温にて板材を押圧部材により押圧しつつ、押圧部材と板材を相対移動させて塑性変形させると、成形品となる被成形材の成形部に大きな残留応力が発生する。
The sequential molding apparatus generally has the following configuration. A pressing member that moves in a multidimensional manner is provided on one side of the material to be molded. A die fixed to the base is provided on the other side of the molding material, and the gripping member for gripping the molding material on the same base is arranged at a position where it does not interfere with the die in the horizontal and vertical directions. And disposed around the die 4. Accordingly, the molding material can be molded into a predetermined three-dimensional shape by moving the pressing member and the molding material relative to the die without using a mold having a specific shape. The pressing member and the die are numerically controlled by a control device, and even if the shape of the molded product is changed, a different molded product can be manufactured without manufacturing a mold by changing the control numerical value. (Patent Document 1)
However, in the case of sequential molding, if the plate member is pressed by the pressing member at room temperature and the pressing member and the plate member are moved relative to each other and plastically deformed, a large residual stress is generated in the molding portion of the molding material to be a molded product. .
そこで、逐次成形装置には、レーザー照射器を備え、このレーザー照射器と押圧部材を一体に動作させ、押圧による加工部近傍をレーザーにより加熱し、加熱した部分を逐次成形することにより、成形部の残留応力を解放させながら逐次成形する逐次成形装置や、押圧部材の外周に加熱コイルを巻いた逐次成形装置が知られている。(特許文献2)
特開2003―181551号公報(図3) 特開2003−236626号公報(図4、図6)
Therefore, the sequential molding apparatus is equipped with a laser irradiator, the laser irradiator and the pressing member are integrally operated, the vicinity of the processing part by pressing is heated with a laser, and the heated part is sequentially molded, thereby forming the molded part. A sequential molding apparatus that sequentially molds while releasing the residual stress, and a sequential molding apparatus in which a heating coil is wound around the outer periphery of a pressing member are known. (Patent Document 2)
Japanese Patent Laid-Open No. 2003-181551 (FIG. 3) JP2003-236626A (FIGS. 4 and 6)
特許文献2に示されるレーザー照射器を備える逐次成形装置では、レーザー照射器を用いた加熱手段と、押圧部材がある程度距離が離れた位置に配設されており、被成形材に対して加熱と押圧を同時に行うことが出来ず、被成形材の加熱と押圧が異なるタイミングで行われる。  In the sequential molding apparatus provided with the laser irradiator shown in Patent Document 2, the heating means using the laser irradiator and the pressing member are disposed at a certain distance from each other. The pressing cannot be performed at the same time, and heating and pressing of the molding material are performed at different timings.
この加熱と押圧の時機が異なることにより、被成形材の温度は押圧する際に、残留応力の発生を低減可能な成形温度よりも低下する。そこで、押圧時に所定温度で被成形材を押圧するには、被成形材の温度低下を見込み、予め、所定温度よりも高い温度で被成形材を加熱させる。  Due to the difference in time of heating and pressing, the temperature of the material to be molded is lower than the molding temperature at which the occurrence of residual stress can be reduced when pressing. Therefore, in order to press the material to be molded at a predetermined temperature at the time of pressing, the temperature of the material to be molded is anticipated, and the material to be molded is heated in advance at a temperature higher than the predetermined temperature.
このことより、押圧を行うに必要な被成形材の温度を得る為に使用するエネルギー以上に加熱エネルギーを使用してしまい、その結果、エネルギーロスが大きくなってしまう。  For this reason, heating energy is used in excess of the energy used to obtain the temperature of the molding material necessary for pressing, and as a result, energy loss increases.
また、所定温度よりも高温で被成形材を加熱すると、被成形材が受ける熱負荷が高くなり、被成形材の種類によっては、被成形材の材料成分が酸化し、被成形材の強度が低下するおそれがある。  In addition, if the material to be molded is heated at a temperature higher than a predetermined temperature, the heat load received by the material to be molded increases. May decrease.
さらに、このような逐次成形装置では、レーザー照射器は高価であることから、設備が高価となる。  Further, in such a sequential molding apparatus, the laser irradiator is expensive, and thus the equipment is expensive.
また、前記加熱コイルを巻いた押圧部材を備える逐次成形装置においても、加熱コイルが押圧部材の押圧部から離れた位置に設けているので、熱が被成形材へ移動する際の温度低下のおそれがある。  Further, in the sequential molding apparatus including the pressing member wound with the heating coil, since the heating coil is provided at a position away from the pressing portion of the pressing member, there is a risk of a temperature decrease when the heat moves to the molding material. There is.
よって、所定温度で被成形材を押圧するには、所定温度以上に押圧部材を加熱しなければならず、所定温度以上に加熱することにより、エネルギー使用量が増加し、エネルギーロスが大きくなってしまう。  Therefore, in order to press the material to be molded at a predetermined temperature, the pressing member must be heated to a predetermined temperature or higher. By heating to a predetermined temperature or higher, the amount of energy used increases and the energy loss increases. End up.
そこで、本発明は、被成形材の成形を行う際に、加熱に使用するエネルギーロスを小さくすること、加熱による被成形材の強度低下を小さく抑えること、安価な逐次成形装置とすることを課題とする。  Therefore, the present invention has the object of reducing the energy loss used for heating when molding the molding material, minimizing the decrease in strength of the molding material due to heating, and providing an inexpensive sequential molding apparatus. And
そこで、上記課題を解決する為に講じた第1の手段は、所定形状を有するダイスと、このダイス上で板状の被成形材を把持する把持部材と、被成形材を押圧し、ダイスの形状に沿って多次元的に移動して成形を行う押圧部材と、
被成形材を加熱する加熱部材とを備え、押圧部材を被成形材に対して多次元的に移動させることにより、被成形材の成形を行う成形装置において、加熱部材は、押圧部材に設けられた第1電極と、ダイスに設けられた第2電極と、両電極間に通電を行う通電装置とを備え、通電装置から通電を行い、前記成形部を加熱させながら成形を行うことを特徴とする。
Therefore, the first means taken to solve the above problems is a die having a predetermined shape, a gripping member for gripping a plate-shaped molding material on the die, pressing the molding material, A pressing member that multi-dimensionally moves along the shape and performs molding;
In a molding apparatus that performs molding of a molding material by moving the pressing member in a multidimensional manner relative to the molding material, the heating member is provided on the pressing member. The first electrode, the second electrode provided on the die, and an energizing device that energizes between both electrodes, energizing from the energizing device, and forming while heating the molding part To do.
また、上記課題を解決する為に講じた第2の手段は、板状の被成形材を把持する把持部材と、被成形材に対して一側に配置され、多次元的に移動する第1押圧部材と、被成形材に対して他側に配置され、多次元的に移動する第2押圧部材と、両押圧部材を被成形材に対し相対的に移動させることにより、被成形材の成形を行う逐次成形装置において、第1押圧部材に設けられた第1電極と、第2押圧部材に設けられた第2電極と、両電極間に通電を行う通電装置とを備え、通電装置から通電を行い、被成形材の成形部を過熱させながら成形を行う逐次成形装置としたことである。  Further, the second means taken in order to solve the above-mentioned problem is a first member that is arranged on one side with respect to the molding material and moves in a multidimensional manner. Forming the molding material by moving the pressing member, the second pressing member arranged on the other side with respect to the molding material, and moving both pressing members relative to the molding material. In the sequential forming apparatus that performs the above, the first electrode provided on the first pressing member, the second electrode provided on the second pressing member, and an energization device that energizes between both electrodes, This is a sequential molding apparatus that performs molding while heating the molding portion of the molding material.
この場合、第2電極は、複数設けられ、通電装置は第1電極の位置に最も近い電極に通電を行うと良い。 In this case, a plurality of second electrodes are provided, and the energization device may energize the electrode closest to the position of the first electrode .
また、第2電極は被成形材の成形部に沿って設けられていると良い。  The second electrode is preferably provided along the molding part of the material to be molded.
更に、第1電極は前記第1押圧部材の端部に設けられていると良い。 Furthermore, the first electrode may be provided at an end of the first pressing member .
そして、上記課題を解決する為に講じた第3の手段、板状の被成形材を把持する把持部材と、被成形材に対して一側に配置され、多次元的に移動する押圧部材と、被成形材に対して他側に配置され、被成形材を所定形状に成形する成形部材と、押圧部材を前記被成形部材に対して移動させることにより、成形部材の形状に沿って被成形材の成形を行う逐次成形装置において、押圧部材に設けられた第1電極と、成形部材に設けられた第2電極と、両電極間に通電を行う通電装置とを備え、通電装置から通電を行い、被成形材の成形部を加熱させながら成形を行う逐次成形装置としたことである。  And the 3rd means taken in order to solve the above-mentioned subject, a gripping member which grips a plate-shaped molding material, a pressing member which is arranged on one side with respect to the molding material and moves in a multidimensional manner The molding member is arranged on the other side of the molding material, and the molding material is molded along the shape of the molding member by moving the pressing member with respect to the molding member, and a molding member for molding the molding material into a predetermined shape. In a sequential molding apparatus that performs molding of a material, a first electrode provided on the pressing member, a second electrode provided on the molding member, and an energization device that energizes between both electrodes, and energization from the energization device. This is a sequential molding apparatus that performs molding while heating the molding part of the material to be molded.
本発明によれば、エネルギーロスが小さく、被成形材への加熱による負荷を軽減し、安価な逐次成形装置とすることが出来る。   According to the present invention, energy loss is small, the load due to heating on the material to be molded can be reduced, and an inexpensive sequential molding apparatus can be obtained.
以下、本発明の第1実施形態について図2を参照して説明する。図2は、本発明の逐次成形装置1の側面図である。第1実施形態の逐次成形装置1は、長方形の基台5にダイス4を配設し、ダイス4を囲むように、ダイス4の四辺に把持部材30を配設する。そして、押圧部材10は図示されていない支持部材によりダイス4と干渉しない上方に配設しており、第1電極21は、押圧部材10の内部に設けられ、第2電極22はダイス4の内部に設けられている。また、通電装置2は、基台5の外部に配設しており、電極用導線24により押圧部材10の内部に設けられている第1電極21及びダイス4の内部に設けられている第2電極22が被成形材3に対してそれぞれ両側に設けられる。  Hereinafter, a first embodiment of the present invention will be described with reference to FIG. FIG. 2 is a side view of the sequential molding apparatus 1 of the present invention. In the sequential molding apparatus 1 of the first embodiment, a die 4 is disposed on a rectangular base 5, and gripping members 30 are disposed on four sides of the die 4 so as to surround the die 4. The pressing member 10 is disposed above the die 4 by a support member (not shown), the first electrode 21 is provided inside the pressing member 10, and the second electrode 22 is provided inside the die 4. Is provided. The energization device 2 is disposed outside the base 5, and the first electrode 21 provided inside the pressing member 10 by the electrode conducting wire 24 and the second provided inside the die 4. Electrodes 22 are provided on both sides of the material 3 to be molded.
ここで、本件発明の実施の形態における被成形材3の材質は、冷間圧延鋼板若しくは熱間圧延鋼板を用いている。  Here, a cold-rolled steel plate or a hot-rolled steel plate is used as the material of the material 3 in the embodiment of the present invention.
この逐次成形装置1は、基台5を備え、この基台5の略中央部にダイス4が固定されており、ダイス4は、製品形状として被成形材3を三次元的に成形する転写面51と基台5と当接する水平面52を有している。更に、基台5は、複数の把持部を支持する支持部材33の端部53と固設されており、基台5と当接する支持部材33の端部53と反対側に把持部30を係合させる設置部54を有し、下把持部材32が固設されている構造を有する。また、把持部材30と支持部材33は、ダイス4と水平方向(図1におけるX1方向、X2方向)及び垂直方向(図2におけるZ1及びZ2方向)においてダイス4と干渉しない位置に配設され、且つ、ダイス4の四辺にそれぞれ配設される構造を有する。  The sequential molding apparatus 1 includes a base 5, and a die 4 is fixed to a substantially central portion of the base 5, and the die 4 is a transfer surface on which the material 3 is molded three-dimensionally as a product shape. 51 and a horizontal surface 52 that contacts the base 5. Further, the base 5 is fixed to the end portion 53 of the support member 33 that supports the plurality of gripping portions, and the gripping portion 30 is engaged with the end portion 53 of the support member 33 that contacts the base 5. It has a structure in which an installation portion 54 to be combined is provided and the lower gripping member 32 is fixed. The gripping member 30 and the support member 33 are disposed at positions that do not interfere with the die 4 in the horizontal direction (X1 direction and X2 direction in FIG. 1) and the vertical direction (Z1 and Z2 direction in FIG. 2) with the die 4. And it has the structure respectively arrange | positioned on the four sides of the die | dye 4. FIG.
そして、逐次成形装置1は、導体からなる押圧部材10を水平方向(図1におけるX1方向、X2方向)及び垂直方向(図2におけるZ1及びZ2方向)に移動できる構造を有しており、予め決められた順序に従い移動しながら被成形材3を押圧部材10により押圧する。また、この逐次成形装置1は、押圧部材10による押圧を行いながら、外部に設けられる通電装置2から電流を押圧部材10に内設されている第1電極21とダイス4に複数本配設(本実施形態では、28本配設)されている第2電極間で通電可能となっている。この場合、被成形材3を挟み、第1電極21と最も近い位置に配設された1本の第2電極22に通電させる。これより、被成形材3を抵抗器として作用させ、被成形材3を通電により発熱させながら、押圧部材10により被成形材3を押圧して成形することが可能である。  The sequential forming apparatus 1 has a structure in which the pressing member 10 made of a conductor can be moved in the horizontal direction (X1 direction and X2 direction in FIG. 1) and the vertical direction (Z1 and Z2 directions in FIG. 2). The workpiece 3 is pressed by the pressing member 10 while moving according to the determined order. Further, the sequential forming apparatus 1 is provided with a plurality of currents on the first electrode 21 and the die 4 provided in the pressing member 10 from the energizing device 2 provided outside while performing the pressing by the pressing member 10 ( In the present embodiment, it is possible to energize between the second electrodes arranged 28). In this case, a single second electrode 22 disposed at a position closest to the first electrode 21 is energized with the molding material 3 interposed therebetween. From this, it is possible to press and shape the molding material 3 by the pressing member 10 while the molding material 3 acts as a resistor and the molding material 3 generates heat by energization.
ここで、第2電極22の材質は、銅合金を用いているが、これ以外の導電材料であっても構わない。  Here, the material of the second electrode 22 is a copper alloy, but other conductive materials may be used.
このように加熱を行い被成形材3の成形部58を軟化させながら押圧を行うことにより、塑性変形時に成形部58の残留応力が軽減され、残留応力の発生が少ない成形品を得ることができる。  By applying pressure while softening the molded part 58 of the material 3 in this way, the residual stress of the molded part 58 is reduced during plastic deformation, and a molded product with less residual stress can be obtained. .
次に把持部材30について説明を行う。把持部材30は、基台5の上に支持部材33が設置され、この支持部材33の基台5と固設された端部53と反対側に把持部材30を水平方向に延在したフランジにより水平状に支持する支持部54を備える。そして、下把持部材32が支持部54に配設され、この下把持部材32と対向する位置に上把持部材33が配設される構造を有する。この把持部材30は、被成形材3の周囲四辺を、把持部材30における上把持部材31と下把持部材32の間で挟み、被成形材3を把持する構成となっている。  Next, the grip member 30 will be described. The gripping member 30 is provided with a support member 33 on the base 5, and a flange that extends the gripping member 30 in the horizontal direction on the opposite side of the end 53 fixed to the base 5 of the support member 33. The support part 54 supported horizontally is provided. The lower gripping member 32 is disposed on the support portion 54, and the upper gripping member 33 is disposed at a position facing the lower gripping member 32. The gripping member 30 is configured to grip the molding material 3 by sandwiching the four sides around the molding material 3 between the upper gripping member 31 and the lower gripping member 32 of the gripping member 30.
そして、把持部材30は、押圧部材10による成形の進度に合わせて押圧部材10の移動速度よりもゆっくりと垂直方向(図2におけるZ1及びZ2方向)に移動し、ダイス4の被成形材3を三次元的に成形し、転写面51の形状に沿って被成形材3を成形する。  The gripping member 30 moves in the vertical direction (Z1 and Z2 directions in FIG. 2) more slowly than the moving speed of the pressing member 10 in accordance with the molding progress by the pressing member 10, and the molding material 3 of the die 4 is moved. Molding is performed three-dimensionally, and the molding material 3 is molded along the shape of the transfer surface 51.
このように把持部材30が押圧部材10による成形の進度に合わせて移動する構造としたのは、被成形材3を逐次成形装置1に最初に設置した位置よりも加工中の被成形材3の高さが変化する製品を三次元的に成形する場合を考慮した為である。つまり、製品形状が被成形材3の当初の設置した位置よりも高低差がある部位へと成形が進んだ場合、把持部材30の高さが変化しない構造では、把持部材30と押圧部材10により被成形材3を引張り過ぎとなり、成形品の肉厚が薄く成ってしまう事が起こりうる。このことより、押圧部材10の押圧力による被成形材3の成形部58の破れや変形を防止する為に把持部材30を移動させており、移動速度は、押圧部材10の送り速度、成形部58の形状、材質、被成形材3の加熱温度を考慮し実験的に求める。  The structure in which the gripping member 30 moves in accordance with the progress of molding by the pressing member 10 in this way is that the molding material 3 being processed is more than the position where the molding material 3 is first installed in the sequential molding apparatus 1. This is because the case where a product whose height changes is three-dimensionally molded is considered. That is, in the structure in which the height of the gripping member 30 does not change when the molding progresses to a site where the product shape has a difference in height from the position where the material 3 is initially installed, the gripping member 30 and the pressing member 10 It may happen that the molding material 3 is pulled too much and the thickness of the molded product becomes thin. Accordingly, the gripping member 30 is moved in order to prevent the molding portion 58 of the molding material 3 from being torn or deformed by the pressing force of the pressing member 10, and the moving speed is determined by the feeding speed of the pressing member 10 and the molding portion. This is experimentally determined in consideration of the shape and material of 58 and the heating temperature of the molding material 3.
次に図3を参照して、押圧部材10について詳細に説明を行う。押圧部材10は、金属製の押圧棒111、ホルダー113、第1電極21から成る。  Next, the pressing member 10 will be described in detail with reference to FIG. The pressing member 10 includes a metal pressing bar 111, a holder 113, and a first electrode 21.
第1押圧棒111は、被成形材3と当接する端部112は略半球形状をしており、被成形材3と接触しない外周部115は略円筒形状となっている。そして、押圧棒111のホルダー113と係合する側の上端部56は、段部57を有しており上端部56は、円筒部115の直径よりも一段太い形状を有している。  In the first pressing rod 111, the end 112 that contacts the molding material 3 has a substantially hemispherical shape, and the outer peripheral portion 115 that does not contact the molding material 3 has a substantially cylindrical shape. The upper end portion 56 on the side of the pressing rod 111 that engages with the holder 113 has a stepped portion 57, and the upper end portion 56 has a shape that is one step thicker than the diameter of the cylindrical portion 115.
次に、ホルダー113は、外周にテーパ面114が形成されており、押圧棒111の円筒部115と当接する側の下端面55の径が小さくなっている。  Next, the holder 113 has a tapered surface 114 formed on the outer periphery, and the diameter of the lower end surface 55 of the pressing rod 111 on the side in contact with the cylindrical portion 115 is reduced.
これにより、ホルダー113の重量の軽減が軽減されている。  Thereby, the weight reduction of the holder 113 is reduced.
そして、ホルダー113の内部には、押圧棒111における上端部56の形状及び円筒部115の一部が収納可能であり、かつ、軸中心に対称形状を有する凹部(図示せず)を有している。  The holder 113 has a concave portion (not shown) that can accommodate the shape of the upper end portion 56 of the pressing rod 111 and a part of the cylindrical portion 115 and has a symmetrical shape at the axial center. Yes.
また、ホルダー113は、押圧部在10の中心軸に対し2分割(図3では、X1方向及びX2方向)にすることが可能となっている。本実施形態では、2分割であるが、ホルダーの大きさ、材質によっては例えば、3分割、4分割としても良い。  Further, the holder 113 can be divided into two parts (X1 direction and X2 direction in FIG. 3) with respect to the central axis of the pressing portion 10. In this embodiment, although it is divided into two, depending on the size and material of the holder, for example, it may be divided into three and four.
次に、逐次成形装置1における押圧棒111と押圧棒ホルダー113の係合について説明する。押圧棒111は、下端部112を板状の被成形材3に対し略直交(図2におけるZ1方向及びZ2方向)となるように配設し、下端部112と軸方向で反対側の上端部56及び円筒部115のうちホルダー113に収納される部分をホルダー113と係合させる。  Next, the engagement between the pressing bar 111 and the pressing bar holder 113 in the sequential molding apparatus 1 will be described. The pressing bar 111 is arranged so that the lower end 112 is substantially orthogonal to the plate-shaped workpiece 3 (Z1 direction and Z2 direction in FIG. 2), and the upper end on the opposite side to the lower end 112 in the axial direction. 56 and the portion of the cylindrical portion 115 accommodated in the holder 113 are engaged with the holder 113.
このように第1押圧棒111の段部57を有する上端部56と、ホルダー113の凹部を係合させると、段部57がストッパーとして作用し、ホルダー113から第1押圧棒111が軸方向に抜けることを止めることが出来る。  When the upper end portion 56 having the step portion 57 of the first pressing rod 111 is engaged with the concave portion of the holder 113 in this way, the step portion 57 acts as a stopper, and the first pressing rod 111 is moved from the holder 113 in the axial direction. You can stop coming out.
本実施例では特に図示はしないが、分割したホルダー113の係合方法は、第1押圧棒111とホルダー113の係合方法は、分割したホルダー113の段付き形状を有する凹部に押圧棒111を嵌め込み、ホルダー113を螺合させて、押圧棒111を挟み込む方法であっても良いし、ホルダー113と押圧棒111が重複する部分を螺合するものでも良く、押圧棒111とホルダー113を軸方向で一体に固設するものであれば良い。  Although not shown in particular in the present embodiment, the method of engaging the divided holder 113 is to engage the first pressing rod 111 and the holder 113 by placing the pressing rod 111 in the recessed portion having the stepped shape of the divided holder 113. A method of inserting and screwing the holder 113 to sandwich the pressing rod 111 may be used, or a portion where the holder 113 and the pressing rod 111 overlap may be screwed together. As long as it is fixed in one piece.
ここで、本実施例の第1押圧棒111の材料はダイス鋼を用いているが、これ以外の材料をであっても構わなく、被成形材3の材質及び加熱温度に応じて選択すれば良い。  Here, die steel is used as the material of the first pressing rod 111 of the present embodiment, but other materials may be used as long as the material is selected according to the material of the molding material 3 and the heating temperature. good.
このように押圧部材10の下端部112が略半球形状をしていることにより、被成形材3が三次元的形状を有していても第1押圧棒111が滑らかに動き、例えば、斜め形状を有する成形部を押圧する場合に、押圧部材10の端部112が成形部58の斜面形状に引っ掛かることなく押圧を行うことが出来る。  Since the lower end portion 112 of the pressing member 10 has a substantially hemispherical shape as described above, the first pressing rod 111 moves smoothly even if the molding material 3 has a three-dimensional shape. In the case of pressing the molding part having the shape, the end 112 of the pressing member 10 can be pressed without being caught by the slope shape of the molding part 58.
そして、押圧棒111及びホルダー113の内部には、押圧部材10の軸方向に第1電極21が押圧棒111と押圧棒ホルダー113を連通して配設されており、第1電極21の先端は、第1押圧棒111を貫通して被成形材3と当接する構造を有する。
ここで、第1押圧棒111を貫通している第1電極21の下端部112における形状は、第1押圧棒111の略半球形状に倣った形状を有し、第1電極21と第1押圧棒111で略半球形状の下端部112を形成している。
The first electrode 21 is disposed in the pressing rod 111 and the holder 113 in the axial direction of the pressing member 10 so that the pressing rod 111 and the pressing rod holder 113 are communicated with each other. The first pressing rod 111 passes through the first pressing rod 111 and comes into contact with the workpiece 3.
Here, the shape of the lower end portion 112 of the first electrode 21 penetrating the first pressing rod 111 has a shape following the substantially hemispherical shape of the first pressing rod 111, and the first electrode 21 and the first pressing rod 111 The rod 111 forms a substantially hemispherical lower end 112.
第1電極21の材質は、銅合金を用いているが、これ以外の導電材料であっても構わない。第1実施形態における、成形時の被成形材3の成形部の加熱温度は約400℃である。  The material of the first electrode 21 is a copper alloy, but a conductive material other than this may be used. In the first embodiment, the heating temperature of the molding part of the molding material 3 during molding is about 400 ° C.
第1電極21を第1押圧棒111内部に貫通させる構造により、第1押圧棒111の外周部に加熱部材を配設しなくても良く、エネルギーロスを抑えることが出来る。  With the structure in which the first electrode 21 is penetrated into the first pressing rod 111, it is not necessary to provide a heating member on the outer peripheral portion of the first pressing rod 111, and energy loss can be suppressed.
また、押圧部材10は、通電装置2と接続された電極用導線24の一端が、ホルダー113の押圧棒111と固設していない上端部に接続され、通電装置2から通電指示を出すことが可能である。(図2参照)
一方、ダイス4の内部に配設された第2電極22の上端は、ダイス4の転写面51に露出しており、他端はダイス内で電極用導線24と接続されている。この電極用導線24は、ダイス4の内部を通りダイス4に設けられた電極用カプラ23に接続される。そして、この電極用カプラ23を介し、電極用導線24により基台5の外に設置された通電装置2と接続され、第1電極21と第2電極22との間で通電を行うことができる。
In addition, the pressing member 10 is connected to the upper end portion of the holder 113 that is not fixed to the pressing rod 111 of the electrode 113 connected to the energizing device 2, and can issue an energizing instruction from the energizing device 2. Is possible. (See Figure 2)
On the other hand, the upper end of the second electrode 22 disposed inside the die 4 is exposed at the transfer surface 51 of the die 4, and the other end is connected to the electrode conductor 24 within the die. The electrode conductive wire 24 passes through the inside of the die 4 and is connected to an electrode coupler 23 provided on the die 4. Then, via the electrode coupler 23, the electrode conducting wire 24 is connected to the energization device 2 installed outside the base 5, and energization can be performed between the first electrode 21 and the second electrode 22. .
ここで、被成形材3を押圧部材10により押圧すると、押圧部材10と第2電極22及び被成形材3のそれぞれが当接した状態で、第1電極21と第2電極22間に通電が成され、被成形材3が抵抗器として作用する構造を有する。  Here, when the molding material 3 is pressed by the pressing member 10, current is passed between the first electrode 21 and the second electrode 22 in a state where the pressing member 10, the second electrode 22, and the molding material 3 are in contact with each other. Thus, the material 3 has a structure that acts as a resistor.
この場合、第2電極22をダイス内に複数本(例えば図1では28本)配設することにより、押圧部材10がダイス4に対し水平方向(図1におけるX1方向、X2方向)及び垂直方向(図2におけるZ1及びZ2方向)に移動した場合、押圧を行う押圧部在10の第1電極21に最も近い位置にある第2電極22に対し通電装置2は通電を行うことが可能となり、成形部58の加熱を行うことが出来る。  In this case, a plurality of the second electrodes 22 (for example, 28 in FIG. 1) are arranged in the die so that the pressing member 10 is in the horizontal direction (X1 direction and X2 direction in FIG. 1) and the vertical direction. When moving in the Z1 and Z2 directions in FIG. 2, the energizing device 2 can energize the second electrode 22 located closest to the first electrode 21 of the pressing portion 10 that performs pressing. The molding part 58 can be heated.
更に、この場合、成形部58が加熱され、加熱と押圧を同時に行うことが出来、被成形材3を加熱し過ぎることなく成形が可能となる。更に、被成形材3の成形部58の温度を、例えば、本実施形態では、400℃に保つことができ、加熱し過ぎることによる被成形材3の表面及び内部の材料成分が酸化することを抑制することが出来る。  Furthermore, in this case, the molding part 58 is heated, and heating and pressing can be performed simultaneously, and molding can be performed without overheating the molding material 3. Furthermore, the temperature of the molding part 58 of the molding material 3 can be maintained at, for example, 400 ° C. in the present embodiment, and the surface and internal material components of the molding material 3 due to excessive heating are oxidized. Can be suppressed.
次に、逐次成形装置1の作動について説明する。  Next, the operation of the sequential molding apparatus 1 will be described.
被成形材3を上把持部材31と下把持部材32の間に挿入させ、図示しない動力源により被成形材3を把持部材30により把持させ固定させる。次に、把持部材30を上又は下(図2におけるZ1方向又はZ2方向)に移動させ、ダイス4の一部と被成形材3の一部が当接する位置まで被成形材3を移動させる。そして、押圧部材10を被成形材3に当接する位置まで移動させて押圧を行うと同時に通電装置2から電極用導線24を通して第1電極21及び第2電極22間に通電指示を行い通電させる。本実施形態では、被成形材3の成形部58を約400℃まで加熱させつつ、被成形材3を押圧部材10によりダイス4に押圧し、ダイス4の転写面51の形状に倣った形になるように被成形材3の成形を行う。この時、被成形材3をダイス4の転写面51に倣わすには、押圧部材10を被成形材3に押し付けるだけでなく、把持部材30を上又は下に移動させながら押圧部材10をダイス4に押圧させるように作動させる。  The molding material 3 is inserted between the upper gripping member 31 and the lower gripping member 32, and the molding material 3 is gripped by the gripping member 30 and fixed by a power source (not shown). Next, the holding member 30 is moved up or down (Z1 direction or Z2 direction in FIG. 2), and the molding material 3 is moved to a position where a part of the die 4 and a part of the molding material 3 come into contact. Then, the pressing member 10 is moved to a position where it comes into contact with the material 3 to be pressed, and at the same time, an energization instruction is made between the first electrode 21 and the second electrode 22 through the electrode conducting wire 24 from the energizing device 2 to energize. In the present embodiment, while the molding portion 58 of the molding material 3 is heated to about 400 ° C., the molding material 3 is pressed against the die 4 by the pressing member 10 to follow the shape of the transfer surface 51 of the die 4. The molding material 3 is molded so as to be. At this time, in order to copy the molding material 3 to the transfer surface 51 of the die 4, not only the pressing member 10 is pressed against the molding material 3 but also the pressing member 10 is moved while the gripping member 30 is moved up or down. 4 is actuated to press.
そして、押圧部材10は、被成形材3に押圧棒111の下端部112を押し付けながら被成形材3の押圧部位を移動し逐次的に作動させる。(本実施形態では、押圧部在10の移動速度は、約5000mm/minである。)
このときの通電装置2は、複数ある第2電極22への通電パターンを押圧部材10の位置に応じて予め記憶しており、押圧部材10の現在位置を示す座標及び次に移動する方向を判断して、第1電極21から最も近い位置にありかつ押圧部材10の進行方向に配設されている第2電極22を選択し、選択された第2電極22のみに電流を流すようにし、その他の第2電極22には電流が流れないように制御する。
Then, the pressing member 10 moves the pressing portion of the molding material 3 while sequentially pressing the lower end portion 112 of the pressing rod 111 against the molding material 3 and sequentially operates it. (In the present embodiment, the moving speed of the pressing portion 10 is about 5000 mm / min.)
The energization device 2 at this time stores in advance energization patterns to the plurality of second electrodes 22 in accordance with the position of the pressing member 10, and determines the coordinates indicating the current position of the pressing member 10 and the direction of the next movement. Then, the second electrode 22 that is closest to the first electrode 21 and is disposed in the traveling direction of the pressing member 10 is selected, and a current is allowed to flow only through the selected second electrode 22. The second electrode 22 is controlled so that no current flows.
次に、第2の実施形態について説明をする。図4は本発明の第2の実施形態である。この第2の実施形態について、押圧部材10の構造及び作動は実施形態1と同様である。ここで、第1の実施形態における押圧部材10と第2の実施形態における第1押圧部材11は同様の構造及び作動を有する押圧部材である。ここでは、実施形態1と異なる部分について主として説明する。  Next, a second embodiment will be described. FIG. 4 shows a second embodiment of the present invention. About this 2nd Embodiment, the structure and operation | movement of the press member 10 are the same as that of Embodiment 1. FIG. Here, the pressing member 10 in the first embodiment and the first pressing member 11 in the second embodiment are pressing members having the same structure and operation. Here, parts different from the first embodiment will be mainly described.
第2の実施形態では、被成形材3の一方の側に第1押圧部材11を備え、他方の側に第2押圧部材12を備える構造を有している。第1の実施形態と異なり、ダイス4に替え第1押圧部材11と同様の構造及び作動を有する第2押圧部材12を下側に配設し、被成形材3の両側から第1及び第2押圧部在11,12により押圧を行い、所定の形状に被成形材3を成形していく構造となっている。第2押圧部材12は第1押圧部材11と同様に、水平方向(図1におけるX1方向及びX2方向とY1及びY2に方向)及び垂直方向(図2における、Z1及びZ2方向)に移動自在となっている。  In the second embodiment, the first pressing member 11 is provided on one side of the molding material 3 and the second pressing member 12 is provided on the other side. Unlike the first embodiment, a second pressing member 12 having the same structure and operation as the first pressing member 11 is disposed on the lower side in place of the die 4, and the first and second members are formed from both sides of the molding material 3. It has a structure in which the material to be molded 3 is molded into a predetermined shape by being pressed by the pressing portions 11 and 12. Like the first pressing member 11, the second pressing member 12 is movable in the horizontal direction (direction X1 and X2 in FIG. 1 and the directions Y1 and Y2) and the vertical direction (direction Z1 and Z2 in FIG. 2). It has become.
そして、第2押圧部材12は、第2押圧棒121と押圧棒ホルダー123及び第2電極22から成り、押圧棒121の被成形材3と接触している上端部122は略半球形状をしており、被成形材3と接触しない部分は略円筒形状をしている。  The second pressing member 12 includes a second pressing rod 121, a pressing rod holder 123, and a second electrode 22. The upper end 122 of the pressing rod 121 that is in contact with the molding material 3 has a substantially hemispherical shape. The portion that does not come into contact with the molding material 3 has a substantially cylindrical shape.
このように上端部122が略半球形状をしていることにより、被成形材3に押圧した際に第2押圧棒121が被成形材3の裏面上を滑らかに動き、所定の形状をした成形品を成形することが出来る。  Since the upper end portion 122 has a substantially hemispherical shape as described above, the second pressing rod 121 smoothly moves on the back surface of the molding material 3 when pressed against the molding material 3, and has a predetermined shape. The product can be molded.
そして、被成形材3の裏面上を接触していない下端部は、ホルダー123の一端に固設されている。本実施形態では特に図示しないが、押圧棒121とホルダー123との関係は、押圧棒121とホルダー123の軸方向に各々雄又は雌のねじをそれぞれ設けて螺合させる構造でも良い。また、押圧棒121をホルダー123の中に嵌め込み、周方向から押圧棒121とホルダー123の重複する部分を螺合するものでも良く、押圧棒121とホルダー123を軸方向に一体に固設するものであれば良い。  And the lower end part which is not contacting on the back surface of the to-be-molded material 3 is fixed to one end of the holder 123. Although not particularly shown in the present embodiment, the relationship between the pressing rod 121 and the holder 123 may be a structure in which male or female screws are respectively provided in the axial direction of the pressing rod 121 and the holder 123 and screwed together. Alternatively, the pressing rod 121 may be fitted into the holder 123, and the overlapping portion of the pressing rod 121 and the holder 123 may be screwed from the circumferential direction, and the pressing rod 121 and the holder 123 are integrally fixed in the axial direction. If it is good.
ここで、本実施形態の押圧棒121の材料はダイス鋼を用いているが、これ以外の材料でも良く、板材3の材質及び加熱温度に応じて選択をすれば良い。  Here, die steel is used as the material of the pressing rod 121 of the present embodiment, but other materials may be used, and selection may be made according to the material of the plate 3 and the heating temperature.
そして、押圧棒121及びホルダー123の内部には、軸方向に第2電極22が押圧棒121とホルダー123を連通して配設されており、第2電極22の先端は、第2押圧棒121を貫通して被成形材3と接触する構造を有する。
ここで、第2押圧棒121を貫通している第1電極22の上端部122における形状は、第2押圧棒121の略半球形状に倣った形状を有し、第2電極22と第2押圧棒121で略半球形状の端部122を形成している。
The second electrode 22 is arranged in the axial direction in the inside of the pressing rod 121 and the holder 123 so that the pressing rod 121 and the holder 123 communicate with each other, and the tip of the second electrode 22 is arranged at the second pressing rod 121. And has a structure in contact with the material 3 to be molded.
Here, the shape of the upper end portion 122 of the first electrode 22 penetrating the second pressing rod 121 has a shape imitating the substantially hemispherical shape of the second pressing rod 121, and the second electrode 22 and the second pressing rod 121. The rod 121 forms a substantially hemispherical end 122.
ここで、本実施例における電極22の材質は、銅合金を用いているが、これ以外の導電材料であっても構わない。   Here, a copper alloy is used as the material of the electrode 22 in this embodiment, but a conductive material other than this may be used.
第2押圧部材12は、第1押圧部材と共に、水平方向(図1におけるX1方向及びX2方向とY1及びY2に方向)垂直方向(図2における、Z1及びZ2方向)に、ほぼ同期した動作を行う構造を有している。   The second pressing member 12 operates in synchronism with the first pressing member in a horizontal direction (directions X1 and X2 in FIG. 1 and directions Y1 and Y2) and a vertical direction (directions Z1 and Z2 in FIG. 2). It has a structure to do.
そして、第1押圧部材に配設されている第1電極21から第2押圧部材に配設されている第2電極22に通電を行い、被成形材3を抵抗器として作用させ加熱する構造を有している。   And the structure which energizes from the 1st electrode 21 arrange | positioned at the 1st press member to the 2nd electrode 22 arrange | positioned at the 2nd press member, makes the to-be-molded material 3 act as a resistor, and heats it. Have.
次に、第2の実施形態に係る逐次成形装置の作動について第1の実施形態と異なる部分について説明する。   Next, the operation of the sequential molding apparatus according to the second embodiment will be described with respect to differences from the first embodiment.
第2押圧部材12の作動は、被成形材3の成形後の厚みにより作動が異なる。成形品の厚みと被成形材3の厚みとを同一厚さに成形するには、第2押圧部材12は、第1押圧部材11と同期させて所定間隔だけずらして作動させる。そして、成形品の厚みを被成形材3よりも薄く成形するには、第2押圧部材12を第1押圧部材11より先に移動させる。   The operation of the second pressing member 12 varies depending on the thickness of the molding material 3 after molding. In order to mold the thickness of the molded product and the thickness of the molding material 3 to the same thickness, the second pressing member 12 is operated by being shifted by a predetermined interval in synchronization with the first pressing member 11. And in order to shape | mold the thickness of a molded product thinner than the to-be-molded material 3, the 2nd press member 12 is moved ahead of the 1st press member 11. FIG.
この第2の実施形態のように、個別に三次元的に移動が出来る第1押圧部材11及び第2押圧部材12を備えることにより、ダイス4を廃止することが出来る。   By providing the 1st press member 11 and the 2nd press member 12 which can be separately moved three-dimensionally like this 2nd Embodiment, the dice | dies 4 can be abolished.
このことから多品種の成形品を一台の逐次成形装置を用いて製造する場合には、ダイス4を交換する作業が必要なく、例えば、第1押圧部材11、第2押圧部在12及び通電装置2の加工プログラムを変更するだけで別製品の成形が可能となり、段取り時間の低減され、生産性を向上させることが可能となる。また、第1実施形態と異なり、第2電極22は一つであるから複数の電極から最も近い電極を選択するという制御は不要となり、電極間の通電に関する制御回路を簡素化することが出来る。  Therefore, when manufacturing various types of molded products using a single sequential molding apparatus, there is no need to replace the die 4, for example, the first pressing member 11, the second pressing portion 12, and the energization Different products can be molded simply by changing the machining program of the apparatus 2, the setup time can be reduced, and productivity can be improved. Further, unlike the first embodiment, since the number of the second electrodes 22 is one, the control of selecting the closest electrode from the plurality of electrodes becomes unnecessary, and the control circuit relating to the energization between the electrodes can be simplified.
次に、本発明の第3の実施形態について、実施形態1及び実施形態2と異なる部分について説明する。  Next, the third embodiment of the present invention will be described with respect to the differences from the first and second embodiments.
第3の実施形態は、被成形材3の加熱部分に不活性ガス(アルゴン、窒素、ヘリウムなどが例示できる)を噴射する噴射装置40を有する押圧部材10を備えた逐次成形装置です。ガス供給装置は、主に、ガスノズル41、ガス供給路42及びガス供給管(図示せず)、ガス供給装置(図示せず)を備えている。このガス供給装置は、第2の実施形態においては、第1押圧部材11だけでなく第2押圧部材12にも取り付けることが出来る構造を有する。以下の説明は、第1押圧部材11に取り付けた実施形態について説明する。  The third embodiment is a sequential molding apparatus including a pressing member 10 having an injection device 40 that injects an inert gas (such as argon, nitrogen, and helium) onto a heated portion of the molding material 3. The gas supply apparatus mainly includes a gas nozzle 41, a gas supply path 42, a gas supply pipe (not shown), and a gas supply apparatus (not shown). In the second embodiment, this gas supply device has a structure that can be attached not only to the first pressing member 11 but also to the second pressing member 12. In the following description, the embodiment attached to the first pressing member 11 will be described.
この不活性ガス噴射装置は、逐次成形装置1の外部にガス供給装置(図示せず)を備え、ガス供給装置(図示せず)から延びてガス供給口43に接続され、押圧部材10と一体となって移動できるガス供給管(図示せず)を備える構造となる。  The inert gas injection device includes a gas supply device (not shown) outside the sequential molding device 1, extends from the gas supply device (not shown), is connected to the gas supply port 43, and is integrated with the pressing member 10. It becomes a structure provided with the gas supply pipe (not shown) which can be moved.
そして、ホルダー113の内部にはガス供給口43から続くガス供給路42が備えられ、押圧棒ホルダー113を軸方向に貫通している構造となっている。ここで、ガス供給路42の配設位置は、軸方向においては、第1電極21と第1押圧棒111に干渉しない位置に配設される構造となり、円周方向の位置は、ホルダー113の内部に配設され、第1押圧棒111の外周と重ならない部分に環状に配設される(本実施形態では16本配設される)構造となる。このガス供給路42は、ホルダー113の端面55にガス噴射口44を備えており、ガス噴射口44の位置は、ガスノズル41の内周壁45が端面55と直交する位置と、押圧棒111の外周が端面55と交差する位置によって環状に形成された範囲内に設けられる構造となる。  A gas supply path 42 that continues from the gas supply port 43 is provided inside the holder 113 and has a structure that penetrates the pressing rod holder 113 in the axial direction. Here, the gas supply passage 42 is disposed at a position where it does not interfere with the first electrode 21 and the first pressing rod 111 in the axial direction, and the circumferential position is the position of the holder 113. It becomes a structure arrange | positioned by the inside and arrange | positioned cyclically | annularly in the part which does not overlap with the outer periphery of the 1st press stick 111 (this embodiment 16 arrangement | positioning). The gas supply path 42 includes a gas injection port 44 on the end surface 55 of the holder 113, and the gas injection port 44 is positioned at a position where the inner peripheral wall 45 of the gas nozzle 41 is orthogonal to the end surface 55 and the outer periphery of the pressing rod 111. Is provided within a range formed in an annular shape by a position intersecting the end face 55.
そして、ガスノズル41は、略円筒形状をしており、軸方向の一端がホルダー113の端面55に係合される構造となる。  The gas nozzle 41 has a substantially cylindrical shape, and has a structure in which one end in the axial direction is engaged with the end surface 55 of the holder 113.
ここで、ガスノズル41とホルダー113の係合方法は、螺合や溶接係合が考えられるが、これらの方法に特に限定されず、押圧部材10の移動によりホルダー113から脱落しなければ良い。また、ガスノズル41の軸方向の長さは、押圧棒111より短く設定され、端面55から端部112の先端までの長さよりも先端から軸方向に約10mm短い長さが好適である。  Here, the engagement method of the gas nozzle 41 and the holder 113 may be screwing or welding engagement, but is not particularly limited to these methods, and the gas nozzle 41 and the holder 113 may not be detached from the holder 113 due to the movement of the pressing member 10. The length of the gas nozzle 41 in the axial direction is set shorter than the pressing rod 111, and is preferably about 10 mm shorter in the axial direction from the tip than the length from the end face 55 to the tip of the end 112.
次に、第3の実施形態に係る逐次成形装置の作動について第1及び第2の実施形態と異なる部分について説明する。  Next, the operation of the sequential molding apparatus according to the third embodiment will be described with respect to parts different from the first and second embodiments.
不活性ガスを用いた逐次成形装置の作動は、逐次成形装置1の外部からガス供給装置(図示せず)に充填されている不活性ガスが、ガス供給装置(図示せず)から延びて押圧部材10に形成されたガス供給口43に接続されるガス供給管(図示せず)へ送られる。そして、不活性ガスがガス供給口43からガス供給路42に送り込まれ、ガス噴射口44から不活性ガスが被成形材3とは平行方向に拡散しないように噴射される。ここで、不活性ガスが噴射されるタイミングは、被成形材3が通電により加熱されている間は被成形材3の表面及び内部の材料成分が酸化するのを防止する為に噴射をされる作動としても良いし、不活性ガス雰囲気を作る為に、通電加熱以外の動作をしているときも絶えず噴射している作動としても良い。本実施形態では、押圧部材10に通電させている時間中に、一分間につき約20Lの不活性ガスを噴射させている。  In the operation of the sequential molding apparatus using the inert gas, the inert gas filled in the gas supply apparatus (not shown) extends from the gas supply apparatus (not shown) from outside the sequential molding apparatus 1 and is pressed. The gas is supplied to a gas supply pipe (not shown) connected to a gas supply port 43 formed in the member 10. Then, the inert gas is sent from the gas supply port 43 to the gas supply path 42, and the inert gas is injected from the gas injection port 44 so as not to diffuse in the direction parallel to the molding material 3. Here, the timing of injecting the inert gas is performed in order to prevent the surface of the molding material 3 and the internal material components from being oxidized while the molding material 3 is heated by energization. It is good also as an action | operation, and it is good also as an action | operation which is inject | pouring continuously also in operation | movement other than energization heating, in order to make an inert gas atmosphere. In the present embodiment, about 20 L of inert gas is injected per minute during the time when the pressing member 10 is energized.
不活性ガスを被成形材3に噴射しながら加熱を行うことにより、加熱による被成形材3の表面及び内面の劣化する材料成分を低減し、成形品強度の低下を防ぐことが可能となる。  By performing the heating while injecting the inert gas onto the molding material 3, it is possible to reduce the material components that deteriorate on the surface and the inner surface of the molding material 3 due to the heating, and to prevent a reduction in the strength of the molded product.
本発明の実施形態1による逐次成形装置の上面図である。It is a top view of the sequential shaping | molding apparatus by Embodiment 1 of this invention. 本発明の実施形態1による逐次成形装置の側面図である。It is a side view of the sequential shaping | molding apparatus by Embodiment 1 of this invention. 本発明の実施形態1による押圧部材の部分拡大図である。It is the elements on larger scale of the press member by Embodiment 1 of this invention. 本発明の実施形態2による押圧加工時の部分拡大図である。It is the elements on larger scale at the time of the press work by Embodiment 2 of this invention. 本発明の実施形態3による押圧加工時の部分拡大図である。It is the elements on larger scale at the time of the press work by Embodiment 3 of this invention.
符号の説明Explanation of symbols
1 逐次成形装置
2 通電装置
3 被成形材
4 ダイス
5 基台
10 押圧部材
11 第1押圧部材
12 第2押圧部材
111 第1押圧棒
112 下端部
113 ホルダー
114 テーパ面
115 円筒部
121 第2押圧棒
122 上端部
123 ホルダー
20 加熱部材
21 第1電極
22 第2電極
23 電極用カプラ
24 電極用導線
30 把持部材
31 上把持部材
32 下把持部材
33 支持部材
40 ガス噴射装置
41 ガスノズル
42 ガス供給路
43 ガス供給口
44 ガス噴射口
45 内周壁
51 転写面
52 当接面
53 端部
54 支持部
55 下端面
56 上端部
57 段部
58 成形部
1 Sequential molding equipment
2 Current supply device 3 Material to be molded
4 dice
5 base 10 pressing member 11 first pressing member 12 second pressing member 111 first pressing rod 112 lower end portion 113 holder 114 taper surface 115 cylindrical portion 121 second pressing rod 122 upper end portion 123 holder 20 heating member 21 first electrode 22 Second electrode 23 Electrode coupler 24 Electrode conductor 30 Gripping member 31 Upper gripping member 32 Lower gripping member 33 Support member 40 Gas injection device 41 Gas nozzle 42 Gas supply path 43 Gas supply port 44 Gas injection port 45 Inner peripheral wall 51 Transfer surface 52 Contact surface 53 End portion 54 Support portion 55 Lower end surface 56 Upper end portion 57 Step portion 58 Molding portion

Claims (6)

  1. 所定形状を有するダイスと、
    該ダイス上で板状の被成形材を把持する把持部材と、
    前記被成形材を押圧し、前記ダイスの形状に沿って多次元的に移動して成形を行う押圧部材と、
    前記被成形材の成形部を加熱する加熱部材とを備え、前記押圧部材を前記被成形材に対して多次元的に移動させることにより、前記被成形材の成形を行う逐次成形装置において、
    前記加熱部材は、前記押圧部材に設けられた第1電極と、前記ダイスに設けられた第2電極と、該両電極間に通電を行う通電装置とを備え、該通電装置から通電を行い、前記成形部を加熱させながら成形を行うことを特徴とする逐次成形装置。
    A die having a predetermined shape;
    A gripping member for gripping the plate-shaped workpiece on the die;
    A pressing member that presses the material to be molded, moves in a multidimensional manner along the shape of the die, and performs molding;
    In a sequential molding apparatus that performs molding of the molding material by moving the pressing member in a multidimensional manner with respect to the molding material, and a heating member that heats a molding portion of the molding material.
    The heating member includes a first electrode provided on the pressing member, a second electrode provided on the die, and an energization device that energizes between both electrodes, and energizes from the energization device, A sequential molding apparatus that performs molding while heating the molding section.
  2. 板状の被成形材を把持する把持部材と、
    前記被成形材に対して一側に配置され、多次元的に移動する第1押圧部材と、
    前記被成形材に対して他側に配置され、多次元的に移動する第2押圧部材と、
    前記両押圧部材を前記被成形材に対し相対的に移動させることにより、前記被成形材の成形を行う逐次成形装置において、
    前記第1押圧部材に設けられた第1電極と、
    前記第2押圧部材に設けられた第2電極と、
    該両電極間に通電を行う通電装置とを備え、
    該通電装置から通電を行い、前記被成形材の成形部を過熱させながら成形を行うことを特徴とする逐次成形装置。
    A gripping member for gripping a plate-shaped workpiece;
    A first pressing member disposed on one side with respect to the molding material and moving in a multidimensional manner;
    A second pressing member which is arranged on the other side with respect to the molding material and moves in a multidimensional manner;
    In the sequential molding apparatus that molds the molding material by moving both the pressing members relative to the molding material,
    A first electrode provided on the first pressing member;
    A second electrode provided on the second pressing member;
    An energizing device for energizing between the electrodes,
    A sequential molding apparatus characterized in that energization is performed from the energization apparatus and molding is performed while the molded portion of the material to be molded is heated.
  3. 前記通電装置は前記第1電極の位置に最も近い前記第2電極に通電を行うことを特徴とする請求項1に記載の逐次成形装置。 The sequential forming apparatus according to claim 1, wherein the energization device energizes the second electrode closest to the position of the first electrode .
  4. 前記第2電極は前記成形部に沿って設けられている請求項1に記載の逐次成形装置。 The sequential forming apparatus according to claim 1, wherein the second electrode is provided along the forming portion.
  5. 前記第1電極は前記第1押圧部材の端部に設けられている請求項1または請求項2に記載の逐次成形装置。 The sequential forming apparatus according to claim 1, wherein the first electrode is provided at an end of the first pressing member .
  6. 板状の被成形材を把持する把持部材と、
    前記被成形材に対して一側に配置され、多次元的に移動する押圧部材と、
    前記被成形材に対して他側に配置され、前記被成形材を所定形状に成形する成形部材と、
    前記押圧部材を前記被成形部材に対して移動させることにより、前記成形部材の形状に沿って前記被成形材の成形を行う逐次成形装置において、
    前記押圧部材に設けられた第1電極と、
    前記成形部材に設けられた第2電極と、
    該両電極間に通電を行う通電装置とを備え、
    該通電装置から通電を行い、前記被成形材の成形部を加熱させながら成形を行う逐次成形装置。
    A gripping member for gripping a plate-shaped workpiece;
    A pressing member that is arranged on one side with respect to the molding material and moves in a multidimensional manner,
    A molding member disposed on the other side of the molding material, and molding the molding material into a predetermined shape;
    In the sequential molding apparatus that molds the molding material along the shape of the molding member by moving the pressing member with respect to the molding member,
    A first electrode provided on the pressing member;
    A second electrode provided on the molded member;
    An energizing device for energizing between the electrodes,
    A sequential molding apparatus that performs molding while energizing the energization apparatus and heating a molding portion of the material to be molded.
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