Machining device for machining crankshafts and a machining system having such a machining device
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B21K-001/08
B23P-023/04
B23P-025/00
B21K-001/12
B23P-017/00
B23P-015/28
B23B-005/18
B23B-003/22
B24B-055/02
B23Q-011/12
B23Q-011/10
B23C-003/06
B23C-005/28
출원번호
US-0365392
(2012-02-03)
등록번호
US-8881352
(2014-11-11)
우선권정보
DE-10 2011 003 714 (2011-02-07)
발명자
/ 주소
Meidar, Moshe Israel
Horn, Wolfgang
Lang, Heiner
Kolb, Holger H.
Scharpf, Paul Dieter
출원인 / 주소
Meidar, Moshe Israel
대리인 / 주소
Reising Ethington P.C.
인용정보
피인용 횟수 :
0인용 특허 :
15
초록▼
A machining device for machining crankshafts has a rotationally driven disk-shaped base body with blade inserts arranged peripherally thereon. A first supply line for a cryogenic cooling medium is arranged concentrically with the axis of rotation and is thermally insulated in at least some sections.
A machining device for machining crankshafts has a rotationally driven disk-shaped base body with blade inserts arranged peripherally thereon. A first supply line for a cryogenic cooling medium is arranged concentrically with the axis of rotation and is thermally insulated in at least some sections. The tool has a plurality of second supply lines for the cryogenic cooling medium running across the axis of rotation and leading to the blade inserts, the second supply lines each being thermally insulated in at least some sections. A distributor unit connects the first supply line to at least one of the second supply lines for supplying the cryogenic cooling medium to at least one of the blade inserts. The cryogenic cooling medium can be conducted directly to the blade inserts which are engaged with the crankshaft that is to be machined.
대표청구항▼
1. A machining device for machining crankshafts, the machining device comprising: a housing;a tool for machining crankshafts having crankshaft walls and cylindrical bearing surfaces, the tool comprising a disk-shaped base body with blade inserts arranged on the outer periphery of the disk-shaped bas
1. A machining device for machining crankshafts, the machining device comprising: a housing;a tool for machining crankshafts having crankshaft walls and cylindrical bearing surfaces, the tool comprising a disk-shaped base body with blade inserts arranged on the outer periphery of the disk-shaped base body;a first drive unit arranged on the housing for rotationally driving the tool about an axis of rotation;a first supply line for a cryogenic cooling medium arranged concentrically with the axis of rotation of the tool, wherein the first supply line is thermally insulated in at least some sections;a plurality of second supply lines on the tool which receive cryogenic cooling medium from the first supply line, wherein the second supply lines are radially arranged relative to the axis of rotation and lead to the blade inserts on the periphery of the base body, wherein the second supply lines are thermally insulated in at least some sections;a rotary distributor unit connecting the first supply line to less than all of the second supply lines and supplying the cryogenic cooling medium through the second supply lines to less than all of the blade inserts, wherein the rotary distributor unit is arranged concentrically with the axis of rotation of the tool;the rotary distributor unit comprising a first distributor part and a second distributor part, the first distributor part being cylindrical and having a first borehole that is axially aligned with the axis of rotation of the disk-shaped tool and the second distributor part being ring shaped and surrounding a section of the first distributor part;a plurality of second boreholes formed in the first distributor part and arranged radially relative to the axis of rotation of the disk-shaped tool, the second boreholes being in communication with the first borehole;an outer circumferential surface on the first supply line; and,a directional outlet opening formed on the outer circumferential surface of the first supply line, the first supply line being positioned in the first borehole, whereby the directional outlet opening may be directed toward selected ones of the second boreholes and the point of the engagement of the tool with the crankshaft, and whereby the rotary distributor unit causes the cooling medium to flow to the blade inserts that are engaged with the crankshaft and blocks the cooling medium from flowing to the blade inserts that are not engaged with the crankshaft. 2. The machining device according to claim 1, wherein the first supply line is vacuum insulated in at least some sections. 3. The machining device according to claim 1, wherein the first supply line has an internal tube and an external tube surrounding the internal tube, and wherein at least one of these tubes is variable in length. 4. The machining device according to claim 1, wherein the first supply line can be displaced linearly in the first borehole along the axis of rotation by means of a shifting unit to alter the distribution of the cryogenic cooling medium to the second supply lines and thus an angle of emergence for the cooling medium, whereby a large angle of emergence is formed for machining crankshaft walls and a smaller angle of emergence is formed for machining cylindrical bearing surfaces. 5. The machining device according to claim 1, wherein the first supply line is pivotable by means of a second drive unit about the axis of rotation and the rotary distributor unit couples the first supply line to various second supply lines as a function of the pivot position of the first supply line, whereby the location of blade inserts that are supplied with cooling medium is able to travel back and forth to correspond to a point of engagement of the blade inserts with the crankshaft. 6. The machining device according to claim 1, wherein the directional outlet opening comprises an elongated hole, and wherein the width of the elongated hole changes over the elongated hole's length. 7. The machining device according to claim 1, wherein the first borehole is funnel-shaped at one end which faces the first supply line. 8. The machining device according to claim 1 further comprising: a ring-shaped seal for sealing the first supply line in the first borehole. 9. The machining device according to claim 1 further comprising: a retention knob arranged on the base body for chucking the tool, the distributor unit extending at least partially into the retention knob. 10. The machining device according claim 1, wherein the distributor unit comprises a thermally insulating material. 11. The machining device according claim 10, wherein the distributor unit comprises a plastic material. 12. The machining device according to claim 1, wherein the second supply lines are vacuum insulated in at least some sections. 13. The machining device according to claim 1, wherein the second supply lines each have an internal tube and an external tube surrounding the internal tube, and at least one of these tubes is variable in length. 14. The machining device according to claim 1, wherein the second supply lines each have a first line section and a plurality of second line sections connected thereto, wherein the second line sections lead to a plurality of blade inserts and form an angle of emergence for the cooling medium. 15. The machining device according to claim 14 further comprising: The directional outlet opening comprising an elongated hole having a width and a length, wherein the width of the elongated hole changes over the elongated hole's length, and wherein axial displacement of the first supply line changes the number of second line sections that receive the cooling medium and changes the angle of emergence of the cooling medium from the tool. 16. The machining device of claim 15, wherein a large angle of emergence of the cooling medium can be achieved for machining the crankshaft walls, and wherein a smaller angle of emergence can be achieved for machining the cylindrical bearing surfaces. 17. The machining device according to claim 1 further comprising: a thermally insulated storage device for providing the cryogenic cooling medium;a cooling unit for cooling the cryogenic cooling medium; and,a thermally insulated supply line for supplying the cryogenic cooling medium from the storage device to the machining device. 18. The machining device according to claim 17 further comprising: a valve for adjusting the flow rate of the cryogenic cooling medium to the machining device.
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