IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0372324
(2003-02-25)
|
우선권정보 |
JP-0003037 (2002-10-18) |
발명자
/ 주소 |
- Okamoto, Kazutaka
- Hirano, Satoshi
- Inagaki, Masahisa
- Odakura, Tomio
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출원인 / 주소 |
|
대리인 / 주소 |
Antonelli, Terry, Stout &
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인용정보 |
피인용 횟수 :
7 인용 특허 :
11 |
초록
▼
In a frictional stirring weld apparatus for bonding elements with a rotary tool, a head is movable with respect to the elements to position and orient the rotary tool so that a pin of the rotary tool is aligned along a boundary between first surfaces and a shoulder of the rotary tool faces to second
In a frictional stirring weld apparatus for bonding elements with a rotary tool, a head is movable with respect to the elements to position and orient the rotary tool so that a pin of the rotary tool is aligned along a boundary between first surfaces and a shoulder of the rotary tool faces to second surfaces extending radially outward from the first surfaces, and to generate a relative movement between the rotary tool and the elements along the second surfaces, and a compensating member is capable of holding thereon the rotary tool, at least partially rotatable on the rotational axis with respect to the head to rotate the rotary tool, and supported on the head movably along the rotational axis with respect to the head so that a positional relationship between the rotary tool and a combination of the elements is adjustable in a direction parallel to the rotational axis.
대표청구항
▼
1. A frictional stirring weld apparatus for bonding elements with a rotary tool including a pin extending along a rotational axis of the rotary tool to be inserted between first surfaces of the elements facing to each other, and a shoulder to be pressed against second surfaces of the elements extend
1. A frictional stirring weld apparatus for bonding elements with a rotary tool including a pin extending along a rotational axis of the rotary tool to be inserted between first surfaces of the elements facing to each other, and a shoulder to be pressed against second surfaces of the elements extending radially outward from the first surfaces respectively, comprising,a head movable with respect to the elements to position and orient the rotary tool in such a manner that the pin is aligned along a boundary between the first surfaces and the shoulder faces to the second surfaces, and to generate a relative movement between the rotary tool and the elements along the second surfaces, a compensating member which is capable of holding thereon the rotary tool, at least partially rotatable on the rotational axis with respect to the head to rotate the rotary tool, and supported on the head movably along the rotational axis with respect to the head so that a positional relationship between at least one of the pin and shoulder and a combination of the elements is adjustable in a direction parallel to the rotational axis; and a positional relationship detector for measuring an actual value corresponding to an actual positional relationship between the rotary tool and the combination of the elements in the direction, wherein the compensating member is movable with respect to the head along the rotational axis in such a manner that a difference between the measured actual value and a desirable value corresponding to a desirable positional relationship between the rotary tool and the combination of the elements in the direction is not more than a predetermined degree, and wherein the positional relationship detector is stationary with respect to the compensating member in the direction so that the positional relationship detector is movable together with the rotary tool in the direction. 2. A frictional stirring weld apparatus according to claim 1, wherein the compensating member has a first compensating member part being rotationally stationary with respect to the head and supported on the head movably in the direction with respect to the head, and a second compensating member part being capable of holding the rotary tool, stationary with respect to the first compensating member in the direction and supported on the first compensating member part in a rotatable manner with respect to the first compensating member part on the rotational axis to rotate the rotary tool, and the positional relationship detector is stationary with respect to the first compensating member part in the direction so that the positional relationship detector is movable together with the rotary tool in the direction.3. A frictional stirring weld apparatus for bonding elements with a rotary tool including a pin extending along a rotational axis of the rotary tool to be inserted between first surfaces of the elements facing to each other, and a shoulder to be pressed against second surfaces of the elements extending radially outward from the first surfaces respectively, comprising,a head movable with respect to the elements to position and orient the rotary tool in such a manner that the pin is aligned along a boundary between the first surfaces and the shoulder faces to the second surfaces, and to generate a relative movement between the rotary tool and the elements along the second surfaces, a compensating member which is capable of holding thereon the rotary tool, at least partially rotatable on the rotational axis with respect to the head to rotate the rotary tool, and supported on the head movably along the rotational axis with respect to the head so that a positional relationship between at least one of the pin and shoulder and a combination of the elements is adjustable in a direction parallel to the rotational axis; and a positional relationship detector for measuring an actual value corresponding to an actual positional relationship between the rotary tool and the combination of the elements in the direction, wherein the compensating member is movable with respect to the head along the rotational axis in such a manner that a difference between the measured actual value and a desirable value corresponding to a desirable positional relationship between the rotary tool and the combination of the elements in the direction is not more than a predetermined degree, and wherein the positional relationship detector is capable of measuring, as the actual value, one of an actual distance between the rotary tool and at least one of the elements, an actual torque for rotationally driving the rotary tool, an actual power for driving the rotary tool and an actual electric current supplied to an electric motor for driving the rotary tool, and the desirable value is a corresponding one of a desirable distance between the rotary tool and the at least one of the elements, a desirable torque for rotationally driving the rotary tool, a desirable power for driving the rotary tool and a desirable electric current to be supplied to the electric motor for driving the rotary tool. 4. A frictional stirring weld apparatus according to claim 1, wherein the positional relationship detector is capable of measuring, as the actual value, an actual distance between the positional relationship detector and the at least one of the elements, and the desirable distance between the rotary tool and the at least one of the elements is a desirable distance between the positional relationship detector and the at least one of the elements.5. A frictional stirring weld apparatus for bonding elements with a rotary tool including a pin extending along a rotational axis of the rotary tool to be inserted between first surfaces of the elements facing to each other, and a shoulder to be pressed against second surfaces of the elements extending radially outward from the first surfaces respectively, comprising,a head movable with respect to the elements to position and orient the rotary tool in such a manner that the pin is aligned along a boundary between the first surfaces and the shoulder faces to the second surfaces, and to generate a relative movement between the rotary tool and the elements along the second surfaces, and a compensating member which is capable of holding thereon the rotary tool, at least partially rotatable on the rotational axis with respect to the head to rotate the rotary tool, and supported on the head movably along the rotational axis with respect to the head so that a positional relationship between at least one of the pin and shoulder and a combination of the elements is adjustable in a direction parallel to the rotational axis; wherein the pin and the shoulder are separable from each other to be movable along the rotational axis with respect to each other, the compensating member has a pin holder being capable of holding the pin thereon, rotatable on the rotational axis with respect to the head to rotate the pin, and supported on the head, and a shoulder holder being capable of holding thereon the shoulder, rotatable on the rotational axis with respect to the head to rotate the shoulder, and supported on the head, and at least one of the pin holder and the shoulder holder is supported on the head movably in the direction with respect to the head so that a positional relationship between the shoulder and the pin is adjustable in the direction. 6. A frictional stirring weld apparatus according to claim 5, wherein the at least one of the pin holder and the shoulder holder is movable along the rotational axis with respect to the head to adjust the positional relationship between the shoulder and the pin in the direction in such a manner that one of a difference between an actual electric current supplied to an electric motor for driving rotationally the pin holder and a desirable electric current to be supplied to the electric motor for driving rotationally the pin holder, a difference between an actual torque for driving rotationally the pin holder and a desirable torque for driving rotationally the pin holder and a difference between an actual temperature of a front end of the pin and a desirable temperature of the front end of the pin is not more than a predetermined degree.7. A frictional stirring weld apparatus according to claim 1, wherein relative movements in a direction traversing the direction between the compensating member and the rotary tool and between the compensating member and the head, and a swing motion of the rotational axis with respect to the head are prevented irrespective of an orientation of the rotational axis.8. A frictional stirring weld apparatus according to claim 1, wherein the head is movable in both attitude and position with respect to the elements.9. A frictional stirring weld method for bonding elements with a rotary tool including a pin extending along a rotational axis of the rotary tool to be inserted between first surfaces of the elements facing to each other, and a shoulder to be pressed against second surfaces of the elements extending radially outward from the first surfaces respectively, comprising the steps of:inserting the pin between the first surfaces, and generating a relative movement between the rotary tool and the elements along the second surfaces in such a manner that the pin is aligned along a boundary between the first surfaces and the shoulder faces to the second surfaces, while rotating the rotary tool on the rotational axis, and pressing the shoulder against the second surfaces, wherein a positional relationship between a head supporting thereon the rotary tool to be positioned and oriented in such a manner that the pin is arranged between the first surfaces and the shoulder faces to the second surfaces and a compensating member which holds thereon the rotary tool and is supported on the head at least partially rotatably on the rotational axis with respect to the head to rotate the rotary tool and movably along the rotational axis with respect to the head is adjusted to determine a positional relationship between at least one of the pin and shoulder and a combination of the elements in a direction parallel to the rotational axis so that the frictional stirring weld is performed between the elements, and measuring an actual value corresponding to an actual positional relationship between the rotary tool and the combination of the elements in the direction, wherein the compensating member is moved with respect to the head along the rotational axis in such a manner that a difference between the measured actual value and a desirable value corresponding to a desirable positional relationship between the rotary tool and the combination of the elements in the direction is not more than a predetermined degree. 10. A frictional stirring weld method according to claim 9, wherein one of an actual distance between the rotary tool and at least one of the elements, an actual force applied to the rotary tool, an actual power for driving the rotary tool and an actual electric current supplied to an electric motor for driving the rotary tool is measured as the actual value, and the desirable value is corresponding one of a desirable distance between the rotary tool and the at least one of the elements, a desirable force to be applied to the rotary tool, a desirable power for driving the rotary tool and a desirable electric current to be supplied to the electric motor for driving the rotary tool.11. A frictional stirring weld method according to claim 9, wherein one of an actual torque for driving rotationally the rotary tool and an actual force applied to the rotary tool in the direction is measured as the actual force, and the desirable force is corresponding one of a desirable torque for driving rotationally the rotary tool and a desirable force to be applied to the rotary tool in the direction.12. A frictional stirring weld for bonding elements with a rotary tool including a pin extending along a rotational axis of the rotary tool to be inserted between first surfaces of the elements facing to each other, and a shoulder to be pressed against second surfaces of the elements extending radially outward from the first surfaces respectively, comprising the steps of:inserting the pin between the first surfaces, and generating a relative movement between the rotary tool and the elements along the second surfaces in such a manner that the pin is aligned along a boundary between the first surfaces and the shoulder faces to the second surfaces, while rotating the rotary tool on the rotational axis, and pressing the shoulder against the second surfaces, wherein a positional relationship between a head supporting thereon the rotary tool to be positioned and oriented in such a manner that the pin is arranged between the first surfaces and the shoulder faces to the second surfaces and a compensating member which holds thereon the rotary tool and is supported on the head at least partially rotatably on the rotational axis with respect to the head to rotate the rotary tool and movably along the rotational axis with respect to the head is adjusted to determine a positional relationship between at least one of the pin and shoulder and a combination of the elements in a direction parallel to the rotational axis so that the frictional stirring weld is performed between the elements, and wherein the pin and the shoulder are separable from each other to be movable along the rotational axis with respect to each other, the compensating member has a pin holder being capable of holding the pin thereon, rotatable on the rotational axis with respect to the head to rotate the pin, and supported on the head, and a shoulder holder being capable of holding thereon the shoulder, rotatable on the rotational axis with respect to the head to rotate the shoulder, and supported on the head, and at least one of the pin holder and the shoulder holder is supported on the head movably in the direction with respect to the head so that a positional relationship between the shoulder and the pin is adjustable in the direction. 13. A frictional stirring weld method according to claim 12, wherein the at least one of the pin holder and the shoulder holder is movable along the rotational axis with respect to the head to adjust the positional relationship between the shoulder and the pin in the direction in such a manner that one of a difference between an actual electric current supplied to an electric motor for driving rotationally the pin holder and a desirable electric current to be supplied to the electric motor for driving rotationally the pin holder, a difference between an actual torque for driving rotationally the pin holder and a desirable torque for driving rotationally the pin holder and a difference between an actual temperature of a front end of the pin and a desirable temperature of the front end of the pin is not more than a predetermined degree.14. A frictional stirring weld method according to claim 9, wherein relative movements in a direction traversing the direction between the compensating member and the rotary tool and between the compensating member and the head and the head, and a swing motion of the rotational axis with respect to the head are prevented irrespective of an orientation of the rotational axis.15. A frictional stirring weld method according to claim 9, wherein the head is movable in both attitude and position with respect to the elements.
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