Component mounting machine

1. A component mounting machine comprising:

a board fixing device which fixes a printed circuit board;

a component supply device which supplies a component at a plurality of supply positions;

a component mounting head which includes (a) a rotating body which is rotatable around a rotation shaft line, (b) a plurality of component holding tools which are installed at an equivalent angle pitch on one circumference around the rotation shaft line, and which respectively hold a component, in the rotating body, and (c) a rotating body rotating device which rotates the rotating body which rotates the plurality of component holding tools along the circumference around the rotation shaft line;

a first component holding tool operating device which operates one component holding tool which is positioned at a first position set on the circumference among the plurality of component holding tools for holding and disengaging the component, and a second component holding tool operating device which operates one component holding tool which is positioned at a second position set on the circumference among the plurality of component holding tools for holding and disengaging the component; and

a head moving device which moves the component mounting head for receiving the component by the plurality of component holding tools from the component supply device, and for mounting the component held by the plurality of component holding tools onto the printed circuit board fixed by the board fixing device,

wherein the component supplied by the component supply device is mounted on the printed circuit board fixed by the board fixing device,

wherein the first position and the second position are set so that the second position is positioned in the middle of any two adjacent component holding tools among the plurality of component holding tools when one of the plurality of component holding tools is positioned at the first position, and

wherein, while the rotating body rotating device rotates the rotating body by a half of the alignment pitch angle of the plurality of component holding tools, the first component holding tool operating device and the second component holding tool operating device alternately operate the component holding tool which is positioned at the first position among the plurality of component holding tools, and the component holding tool which is at the second position among the plurality of component holding tools.

2. The component mounting machine according to claim 1 ,

wherein the number of the plurality of component holding tools provided in the component mounting head is an odd number, and

wherein the first position and the second position are set so as to be positioned to be opposite to each other around the rotation shaft line.

3. The component mounting machine according to claim 1 ,

wherein the plurality of supply positions are provided to be aligned on one straight line, and

wherein the first position and the second position are set so that a straight line that links the first position and the second position to each other, is parallel to the straight line on which the plurality of supply positions are aligned.

4. The component mounting machine according to claim 1 ,

wherein each of the first component holding tool operating device and the second component holding tool operating device includes a component holding tool lifting and lowering device which moves one of the plurality of component holding tools in a vertical direction,

wherein the first component holding tool operating device starts to lower the component holding tool at a stage where the component holding tool approaches the first position with respect to the component holding tool which is positioned at the first position next by the rotation of the rotating body around the rotation shaft line among the plurality of component holding tools, and continues to lift the component holding tool even when the component holding tool is separated from the first position after the component holding tool holds and disengages the component, and

wherein the second component holding tool operating device starts to lower the component holding tool at a stage where the component holding tool approaches the second position with respect to the component holding tool which is positioned at the second position next by the rotation of the rotating body around the rotation shaft line among the plurality of component holding tools, and continues to lift the component holding tool even when the component holding tool is separated from the first position after the component holding tool holds and disengages the component.

5. The component mounting machine according to claim 4 ,

wherein, after the first component holding tool operating device receives the component by lowering the component holding tool which is at the first position among the plurality of component holding tools, before ending the lifting of the component holding tool, the rotating body rotating device starts to rotate the rotating body, and the second component holding tool operating device starts to lower the component holding tool which approaches the second position among the plurality of component holding tools.

6. The component mounting machine according to claim 1

wherein, when mounting the component received by each of the plurality of component holding tools onto the printed circuit board, only one of the first and the second component holding tool operating devices is used.

7. A component mounting machine comprising:

a board fixing device which fixes a printed circuit board;

a component supply device which supplies a component at a plurality of supply positions;

a component mounting head which includes (a) a rotating body which is rotatable around a rotation shaft line, (b) a plurality of component holding tools which are installed at an equivalent angle pitch on one circumference around the rotation shaft line, and which respectively hold a component, in the rotating body, and (c) a rotating body rotating device which rotates the rotating body which rotates the plurality of component holding tools along the circumference around the rotation shaft line;

a first component holding tool operating device which operates one component holding tool which is positioned at a first position set on the circumference among the plurality of component holding tools for holding and disengaging the component, and a second component holding tool operating device which operates one component holding tool which is positioned at a second position set on the circumference among the plurality of component holding tools for holding and disengaging the component; and

a head moving device which moves the component mounting head for receiving the component by the plurality of component holding tools from the component supply device, and for mounting the component held by the plurality of component holding tools onto the printed circuit board fixed by the board fixing device,

wherein the component supplied by the component supply device is mounted on the printed circuit board fixed by the board fixing device,

wherein the first position and the second position are set so that the second position is positioned in the middle between two adjacent component holding tools among the plurality of component holding tools when one of the plurality of component holding tools is positioned at the first position,

wherein the plurality of supply positions are provided to be aligned on one straight line,

wherein the first position and the second position are set so that a straight line that links the first position and the second position to each other, is parallel to the straight line on which the plurality of supply positions are aligned,

wherein the plurality of supply positions are provided at an equivalent pitch on the straight line, and

wherein the first position and the second position are set so that the distance between the first position and the second position is equivalent to an integer multiple value of the pitch of the plurality of supply positions.

8. The component mounting machine according to claim 7 ,

wherein, when receiving the component by the plurality of component holding tools, the head moving device does not move the component mounting head, and each of the first component holding tool operating device and the second component holding tool operating device makes each of the plurality of component holding tools operated by the corresponding component holding tool operating device receive the component from the same position among the plurality of supply positions.

9. A component mounting machine comprising:

a board fixing device which fixes a printed circuit board;

a component supply device which supplies a component at a plurality of supply positions;

a component mounting head which includes (a) a rotating body which is rotatable around a rotation shaft line, (b) a plurality of component holding tools which are installed at an equivalent angle pitch on one circumference around the rotation shaft line, and which respectively hold a component, in the rotating body, and (c) a rotating body rotating device which rotates the rotating body which rotates the plurality of component holding tools along the circumference around the rotation shaft line;

a first component holding tool operating device which operates one component holding tool which is positioned at a first position set on the circumference among the plurality of component holding tools for holding and disengaging the component, and a second component holding tool operating device which operates one component holding tool which is positioned at a second position set on the circumference among the plurality of component holding tools for holding and disengaging the component; and

a head moving device which moves the component mounting head for receiving the component by the plurality of component holding tools from the component supply device, and for mounting the component held by the plurality of component holding tools onto the printed circuit board fixed by the board fixing device,

wherein the component supplied by the component supply device is mounted on the printed circuit board fixed by the board fixing device,

wherein the first position and the second position are set so that the second position is positioned in the middle of any two adjacent component holding tools among the plurality of component holding tools when one of the plurality of component holding tools is positioned at the first position, and

wherein, when mounting the component received by each of the plurality of component holding tools onto the printed circuit board, where the first position is close to the next mounting position on the printed circuit board, the first component holding tool operating device is used, and where the second position is close to the next mounting position, the second component holding tool operating device is used.

10. The component mounting machine according to claim 9 ,

wherein, when mounting the component received by each of the plurality of component holding tools onto the printed circuit board, only one of the first and the second component holding tool operating devices is used.