Method and apparatus for removing a casted part for use in a die casting machine
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B22D-017/32
B22D-029/00
출원번호
UP-0615095
(2006-12-22)
등록번호
US-7775258
(2010-09-06)
우선권정보
JP-2005-371579(2005-12-26)
발명자
/ 주소
Yashiro, Masaki
Yokoyama, Hiroshi
출원인 / 주소
Toshiba Kikai Kabushiki Kaisha
대리인 / 주소
DLA Piper LLP US
인용정보
피인용 횟수 :
0인용 특허 :
2
초록▼
A method for removing a casted part, for use in a die casting machine comprises the steps of setting a position in which a chuck performs an operation to grasp a casted part attached to a movable mold as a position from which the casted part is to be removed, and setting a relative positional relati
A method for removing a casted part, for use in a die casting machine comprises the steps of setting a position in which a chuck performs an operation to grasp a casted part attached to a movable mold as a position from which the casted part is to be removed, and setting a relative positional relationship between a handle portion which is a part of the casted part attached to the movable mold to be grasped by the chuck and a movable die plate. The method further comprises the step of advancing the chuck between the movable mold and the fixed mold and positioning the chuck at the position from which the casted part is to be removed, in parallel with the movement of the movable die plate. Additionally, the method comprises the steps of stopping the movable die plate when the handle portion of the casted part attached to the movable mold reaches the position from which the casted part is to be removed, grasping the handle portion of the casted part by using the chuck, and removing the casted part from the movable mold.
대표청구항▼
The invention claimed is: 1. A casted-part removing apparatus for use in a die casting machine, which includes a fixed die plate, a movable die plate, a mold having a fixed mold attached to the fixed die plate and a movable mold attached to the movable die plate, and an electric clamping machine ha
The invention claimed is: 1. A casted-part removing apparatus for use in a die casting machine, which includes a fixed die plate, a movable die plate, a mold having a fixed mold attached to the fixed die plate and a movable mold attached to the movable die plate, and an electric clamping machine having a mechanism driven by a servomotor and configured to move the movable die plate, the casted-part removing apparatus comprising: a removing device including a chuck configured to take hold of a casted part attached to the movable mold when the mold is opened after a casting operation, and a chuck driving mechanism configured to move the chuck from a fixed standby position in a space outside the mold to an expected position at which the chuck takes hold of the casted part between the fixed mold and the movable mold, the expected position being the same position for any given mold from a plurality of molds used with the casted-part removing apparatus and each mold from the plurality of molds being configured to produce a casted part different from a casted part produced by another mold from the plurality of molds; a driving device configured to drive pushing pins that push out the casted part from the movable mold; a control device constructed and arranged to set a distance between a portion of the casted part to be taken hold of by the chuck and the movable die plate, and to calculate a target position of the movable die plate based on the set distance so that the position of the portion of the casted part to be taken hold of by the chuck coincides with the expected position; and a servo-control device constructed and arranged to control the servomotor to stop the movable die plate during a mold opening operation at the target position so that the portion of the casted part to be taken hold of by the chuck reaches the expected position from which the casted part is to be removed. 2. The casted-part removing apparatus for use in a die casting machine according to claim 1, further comprising: a sequence control device configured to control a sequence in accordance with a predetermined order, the sequence including an operation to move the movable mold, an operation to have the chuck start move from the fixed standby waiting position into the space between the movable mold and the fixed mold concurrently with the operation to move the movable mold, an operation to position the chuck at the expected position at which the casted part is to be removed, an operation to stop movement of the movable mold and position the movable mold at the stopped position when the portion of the casted part reaches the expected position from which the casted part is to be removed, an operation to take hold of the casted part by using the chuck, an operation to push out the casted part attached to the movable mold by using the pushing pins, and an operation to have the chuck taking hold of the casted part wait at the fixed standby position. 3. The casted-part removing apparatus for use in a die casting machine according to claim 1, wherein: the chuck driving mechanism includes an orthogonal type driving mechanism having a horizontal driving apparatus configured to move the chuck in the direction parallel to a driving direction of the movable die plate, and an vertical driving apparatus configured to move the chuck in a direction perpendicular to the driving direction of the movable die plate. 4. The casted-part removing apparatus for use in a die casting machine according to claim 3, wherein: the horizontal driving apparatus is configured to allow the chuck taking hold of the casted part to move in a mold closing direction concurrently with the pushing pins pushing out the casted part. 5. The casted-part removing apparatus for use in a die casting machine according to claim 2, wherein: the sequence control device is configured to have the movable die plate start to move in a mold closing direction of the movable die plate concurrently with the start of the chuck moving toward the space between the movable mold and the fixed mold, when the movable die plate is in a mold opening limit position. 6. The casted-part removing apparatus for use in a die casting machine according to claim 2, wherein: the sequence control device is configured to have the chuck start moving toward the space between the movable mold and the fixed mold concurrently with the mold opening operation of the movable die plate, after the filling of a melt casting material into the mold cavity. 7. The casted part-removing apparatus for use in a die casting machine according to claim 1, wherein: the electric clamping machine is a composite type clamping machine which includes a feeding ball screw mechanism configured to be driven by a servomotor and clamping cylinder configured to generate a clamping force to close the fixed mold, and the servo-control device is configured to control the servomotor for driving the feeding ball screw mechanism. 8. An apparatus for use in a die casting machine including a base, a guide disposed on the base, a fixed die plate, a movable die plate, a mold having a fixed portion coupled to the fixed die plate and a movable portion coupled to the movable die plate, and a mechanism driven by a servomotor and configured to move the movable die plate along the guide, the apparatus comprising: a chuck configured to take hold of a casted part attached to the movable portion of the mold; a chuck driving mechanism having a first device configured to move the chuck in a direction substantially parallel to the guide and a second device configured to move the chuck in a direction substantially perpendicular to the guide; a first controller constructed and arranged to control the chuck driving mechanism such that the chuck moves from a fixed standby location to a predetermined location at which the chuck takes hold of the casted part between the fixed portion of the mold and the movable portion of the mold, the predetermined location being the same location for any given mold from a plurality of molds used with the apparatus and each mold from the plurality of molds being configured to produce a casted part different from a casted part produced by another mold from the plurality of molds; a second controller constructed and arranged to control the servomotor such that the movable die plate having the movable portion of the mold to which the casted part is attached moves to a target position along the guide so that the position of a portion of the casted part to be taken hold of by the chuck coincides with the predetermined location, the first controller and the second controller configured to respectively move the chuck and the portion of the casted part to be taken hold of by the chuck to the predetermined location concurrently; and a third controller constructed and arranged to determine the target position along the guide where the movable die plate is moved, the target position along the guide being a relative position to the predetermined location and based on the shape of the mold, or the thickness of the mold, or both. 9. The apparatus of claim 8, further comprising: a driving device configured to drive pushing pins that push out the casted part from the movable portion of the mold. 10. A casted-part removing apparatus for use in a die casting machine, which includes a fixed die plate, a movable die plate, a mold having a fixed mold attached to the fixed die plate and a movable mold attached to the movable die plate, and an electric clamping machine having a mechanism driven by a servomotor and configured to move the movable die plate, the casted-part removing apparatus comprising: a removing device including a chuck configured to take hold of a casted part attached to the movable mold when the mold is opened after a casting operation, and a chuck driving mechanism configured to move the chuck from a fixed standby position in a space outside the mold to an expected position at which the chuck takes hold of the casted part between the fixed mold and the movable mold, the expected position being the same position for any given mold from a plurality of molds used with the casted-part removing apparatus and each mold from the plurality of molds being configured to produce a casted part different from a casted part produced by another mold from the plurality of molds; a driving device configured to drive pushing pins that push out the casted part from the movable mold; a control device configured to set a distance between a portion of the casted part to be taken hold of by the chuck and the movable die plate, and to calculate a target position of the movable die plate based on the set distance so that the position of the portion of the casted part to be taken hold of by the chuck coincides with the expected position; and means for controlling the servmotor to stop the movable die plate during a mold opening operation at the target position so that the portion of the casted part to be taken hold of by the chuck reaches the expected position from which the casted part is to be removed. 11. An apparatus for use in a die casting machine including a base, a guide disposed on the base, a fixed die plate, a movable die plate, a mold having a fixed portion coupled to the fixed die plate and a movable portion coupled to the movable die plate, and a mechanism driven by a servomotor and configured to move the movable die plate along the guide, the apparatus comprising: a chuck configured to take hold of a casted part attached to the movable portion of the mold; a chuck driving mechanism having a first device configured to move the chuck in a direction substantially parallel to the guide and a second device configured to move the chuck in a direction substantially perpendicular to the guide; a first controller configured to control the chuck driving mechanism such that the chuck moves from a fixed standby location to a predetermined location at which the chuck takes hold of the casted part between the fixed portion of the mold and the movable portion of the mold, the predetermined location being the same location for any given mold from a plurality of molds used with the apparatus and each mold from the plurality of molds being configured to produce a casted part different from a casted part produced by another mold from the plurality of molds; a second controller including means for controlling the servomotor such that the movable die plate having the movable portion of the mold to which the casted part is attached moves to a target position along the guide so that the position of a portion of the casted part to be taken hold of by the chuck coincides with the predetermined location, the first controller and the second controller configured to respectively move the chuck and the portion of the casted part to be taken hold of by the chuck to the predetermined location concurrently; and a third controller configured to determine the target position along the guide where the movable die plate is moved, the target position along the guide being a relative position to the predetermined location and based on the shape of the mold, or the thickness of the mold, or both.
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