IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0921224
(2004-08-19)
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우선권정보 |
JP-2003-208535(2003-08-25); JP-2004-077065(2004-03-17); JP-2004-117328(2004-04-12) |
발명자
/ 주소 |
- Ito,Yasushi
- Naruse,Futao
- Maruyama,Osamu
|
출원인 / 주소 |
- Hitachi Via Mechanics, Ltd.
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대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
13 |
초록
▼
There is provided a laser machining apparatus, and a laser machining method using the same. The laser machining apparatus has a body portion having a plurality of laser irradiating sections and work mounting sections, a supplying stocker for supplying workpieces, and a discharging stocker for discha
There is provided a laser machining apparatus, and a laser machining method using the same. The laser machining apparatus has a body portion having a plurality of laser irradiating sections and work mounting sections, a supplying stocker for supplying workpieces, and a discharging stocker for discharging the workpieces. The apparatus further comprises a supply-side transfer unit having work retaining tables capable of attracting/releasing the workpieces and being of the same number as the laser irradiating sections, and moving in vertical and horizontal directions, and a discharge-side transfer unit having work retaining tables capable of attracting/releasing the workpieces and being of the same number as the laser irradiating sections, and moving in vertical and horizontal directions. The supply-side transfer unit causes the supply-side work retaining tables to attract the workpieces from the supplying stocker one after another and moves these supply-side work retaining tables to the work mounting sections to place the workpieces thereon. The discharge-side transfer unit causes the discharge-side work retaining tables to attract the work pieces which have been machined at work mounting sections, and to move and discharge these workpieces to the discharging stocker.
대표청구항
▼
What is claimed is: 1. A laser machining apparatus comprising: laser irradiating units; mounting sections for facing said laser irradiating units, respectively; a single supply stocker; a supply-side transfer unit for removing from said single supply stocker, and holding, workpieces equal in number
What is claimed is: 1. A laser machining apparatus comprising: laser irradiating units; mounting sections for facing said laser irradiating units, respectively; a single supply stocker; a supply-side transfer unit for removing from said single supply stocker, and holding, workpieces equal in number to that of said laser irradiating units, and for simultaneously supplying the workpieces to said mounting sections, respectively; a discharge-side transfer unit for simultaneously removing from said mounting sections the workpieces after having been simultaneously processed by said laser irradiating units; a discharge stocker; a supply-side support table; and a discharge-side support table, wherein said supply-side transfer unit includes supply-side retaining members capable of holding/releasing the workpieces such that said supply-side transfer unit is for simultaneously supplying the workpieces to said mounting sections by using said supply-side retaining members to simultaneously transfer the workpieces to said mounting sections while the workpieces are being held by said supply-side retaining members, respectively, and then causing said supply-side retaining members to release the workpieces, wherein said discharge-side transfer unit includes discharge-side retaining members capable of holding/releasing the workpieces such that said discharge-side transfer unit is for simultaneously removing the workpieces from said mounting sections by using said discharge-side retaining members to simultaneously remove the workpieces from said mounting sections, respectively, wherein said supply-side support table, said supply-side retaining members and said supply stocker are constructed and arranged such that said supply-side transfer unit is for removing from said supplying stocker, and holding, the workpieces by (i) having one of said supply-side retaining members face said supply stocker and remove a first of the workpieces from said supply stocker, then (ii) releasing the first of the workpieces from said one of said supply-side retaining members onto said supply-side support table, and then (iii) using another of said supply-side retaining members to hold the first of the workpieces, and using said one of said supply-side retaining members to remove from said supply stocker and hold, a second of the workpieces, and wherein said discharge-side support table said discharge-side retaining members and said discharge stocker are constructed and arranged such that after said discharge-side retaining members simultaneously remove the workpieces from said mounting sections, (i) one of the workpieces is released from one of said discharge-side retaining members onto said discharge stocker and another of the workpieces is released from another of said discharge-side retaining members onto said discharge-side support table, and then (ii) said one of said discharge-side retaining members removes the another of the workpieces from said discharge-side support table and releases this workpiece onto said discharge stocker. 2. The laser mounting apparatus according to claim 1, wherein said mounting sections, said supply-side retaining members, said supply stocker, said discharge-side retaining members and said discharge stocker are arranged along an axial direction, with (i) said supply stocker and said supply-side retaining members being disposed on one side of said mounting sections such that said one of said supply-side retaining members is positioned farther from said mounting sections than is said another of said supply-side retaining members, and (ii) said discharge stocker and said discharge-side retaining members are disposed on another side of said mounting sections such that said one of said discharge-side retaining members is positioned farther from said mounting sections than is said another of said discharge-side retaining members, said supply-side retaining members and said discharge-side retaining members are vertically and horizontally movable, said supply-side retaining members are equal in number to that of said laser irradiating units, and said discharge-side retaining members are equal in number to that of said laser irradiating units. 3. The laser machining apparatus according to claim 2, wherein said supply-side support table is movable in the axial direction between said mounting sections and said supply stocker, and/or said discharge-side support table is movable in the axial direction between said mounting sections and said discharge stocker. 4. The laser machining apparatus according to claim 2, wherein said supply-side support table is between said mounting sections and said supply stocker, and/or said discharge-side support table is between said mounting sections and said discharge stocker. 5. The laser machining apparatus according to claim 2, wherein said supply-side support table is movable in the axial direction between said supply stocker and said mounting sections, and further comprising: an interleaf support table for receiving interleaves, said interleaf support table being movable in the axial direction between said supply stocker and said mounting sections, and also being movable in the vertical direction between said supply-side support table and said supply stocker. 6. The laser machining apparatus according to claim 2, wherein said discharge-side support table is movable in the axial direction between said discharge stocker and said mounting sections. 7. The laser machining apparatus according to claim 2, further comprising: an interleaf removing and carrying-out unit for removing an interleaf from a workpiece on said supply stocker; and an interleaving unit for placing the interleaf on the workpiece after the workpiece has been processed by one of said laser irradiating units, wherein said interleaf removing and carrying-out unit is disposed on a side of said supply stocker, and said interleaving unit is disposed on a side of said discharge stocker. 8. The laser machining apparatus according to claim 2, wherein said supply-side retaining members comprise two supply-side retaining tables, and said discharge-side retaining members comprise two discharge-side retaining tables. 9. The laser machining apparatus according to claim 1, wherein said mounting sections, said supply-side transfer unit and said discharge-side transfer unit are constructed and arranged such that (i) while the workpieces are being processed by said laser irradiating units, new workpieces equal in number to that of said laser irradiating units are being removed from said supply stocker and held by said supply-side transfer unit, and (ii) after the workpieces have been simultaneously removed from said mounting sections by said discharge-side transfer unit, the new workpieces being held by said supply-side transfer unit are simultaneously supplied to said mounting sections. 10. A method comprising: using a supply-side transfer unit to remove from a single supply stocker, and hold, workpieces equal in number to that of laser irradiating units, and to simultaneously supply said workpieces to mounting sections that are to respectively face said laser irradiating units; and using a discharge-side transfer unit to simultaneously remove said workpieces from said mounting sections after said workpieces have been simultaneously processed by said laser irradiating units, wherein said supply-side transfer unit includes supply-side retaining members capable of holding/releasing said workpieces such that using said supply-side transfer unit to simultaneously supply said workpieces to said mounting sections comprises using said supply-side retaining members to simultaneously transfer said workpieces to said mounting sections while said workpieces are being held by said supply-side retaining members, respectively, and then causing said supply-side retaining members to release said workpieces, wherein said discharge-side transfer unit includes discharge-side retaining members capable of holding/releasing said workpieces such that using said discharge-side transfer unit to simultaneously remove said workpieces from said mounting sections comprises using said discharge-side retaining members to simultaneously remove said workpieces from said mounting sections, respectively, and wherein using said supply-side transfer unit to remove from said supply stocker, and hold, said workpieces, comprises (i) having one of said supply-side retaining members face said supply stocker and remove a first of said workpieces from said stocker, then (ii) releasing said first of said workpieces from said one of said supply-side retaining members onto a supply-side support table, and then (iii) using another of said supply-side retaining members to hold said first of said workpieces, and using said one of said supply-side retaining members to remove from said supply stoker, and hold, a second of said workpieces, and further comprising: after using said discharge-side retaining members to simultaneously remove said workpieces from said mounting sections, (i) releasing one of said workpieces from one of said discharge-side retaining members onto a discharge stocker, and releasing another of said workpieces from another of said discharge-side retaining members onto a discharge-side support table, and then (ii) using said one of said discharge-side retaining members to remove said another of said workpieces from said discharge-side support table and release this workpiece onto said discharge stocker. 11. The method according to claim 10, wherein said supply-side retaining members comprise two supply-side retaining tables, and said discharge-side retaining members comprise two discharge-side retaining tables. 12. The method according to claim 10, wherein workpieces and interleaves are alternately stacked on said supply stocker, and further comprising: while said workpieces are held by said two supply-side retaining tables, respectively, receding an interleaf support table having thereon a first interleaf; after said workpieces are released onto said mounting sections by said two supply-side retaining tables, using said two supply-side retaining tables to hold said first interleaf and a second interleaf; after using said two discharge-side retaining tables to remove said workpieces from said mounting sections, after said workpieces have been processed by said laser irradiating units, using said two supply-side retaining tables to release said first and second interleaves onto said mounting sections, respectively; after releasing one of said workpieces from one of said two discharge-side retaining tables onto said discharge-side support table and then receding said discharge-side support table, and after releasing the other of said workpieces from the other of said two discharge-side retaining tables onto said discharge stocker, using said two discharge-side retaining tables to remove from said work mounting sections, and hold, said first and second interleaves, respectively; and after releasing onto said other of said workpieces, on said discharge stocker, one of said first and second interleaves from said another of said two discharge-side retaining tables, using said another of said discharge-side retaining tables to remove said one of said workpieces from said discharge-side support table and release this workpiece onto said one of said first and second interleaves on said discharge stocker, and then using said another of said discharge-side retaining tables to place said second one of said first and second interleaves onto said one of said workpieces on said discharge stocker such that said workpieces and said first and second interleaves are alternately stacked on said discharge stocker. 13. The method according to claims 10, wherein workpieces and interleaves are alternately stacked on said supply stocker, and further comprising: using an interleaf removing and carrying-out unit to remove an interleaf from said supply stocker; and using an interleaf supplying unit to supply said interleaf onto said discharge stocker. 14. The method according to claims 10, wherein using said supply-side transfer unit to remove and hold said workpieces, and to supply said workpieces to said mounting sections includes horizontally and vertically moving said supply-side transfer unit; and using said discharge-side transfer unit to remove said workpieces from said mounting sections includes horizontally and vertically moving said discharge-side transfer unit. 15. The method according to claim 10, further comprising: while the workpieces are being processed by said laser irradiating units, using said supply-side transfer unit to remove from said supply stocker new workpieces equal in number to that of said laser irradiating units, and hold said new workpieces; and after said workpieces have been simultaneously removed from said mounting sections by said discharge-side transfer unit, using said supply-side transfer unit to supply said new workpieces to said mounting sections.
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