Chuck device and component mounting machine

1. A chuck device comprising:

a plurality of types of chuck pawls clamping a component;

a chuck pawl switching mechanism switching the chuck pawls in use among the plurality of types of chuck pawls in accordance with the type of the component to be clamped; and

a driving mechanism allowing the chuck pawl switched by the chuck pawl switching mechanism to be put into a clamping operation,

wherein the chuck pawl switching mechanism includes a cylindrical cam, the plurality of types of chuck pawls are placed at predetermined intervals around the cylindrical cam, and the respective chuck pawls are moved upward and downward independently of each other by the cylindrical cam being rotated.

2. The chuck device according to claim 1 ,

wherein the chuck pawl switching mechanism retracts the chuck pawl not used among the plurality of types of chuck pawls to a retraction position not interfering with the clamping operation of the chuck pawl in use.

3. The chuck device according to claim 2 ,

wherein the plurality of types of chuck pawls are supported such that the respective chuck pawls are moved upward and downward independently of each other, and

wherein the chuck pawl switching mechanism lifts the chuck pawl not used to the retraction position and lowers the chuck pawl in use to a clamping operation position below the retraction position.

4. The chuck device according to claim 3 ,

wherein a cam follower disposed in each of the chuck pawls is fitted into a cam groove in an outer peripheral surface of the cylindrical cam.

5. The chuck device according to claim 4 ,

wherein a tubular guide member guiding the upward and downward movement of each of the chuck pawls is concentrically placed on an outer peripheral side of the cylindrical cam, and the respective chuck pawls are moved upward and downward independently of each other by the cylindrical cam being rotated in a state where rotation of the tubular guide member is locked.

6. The chuck device according to claim 1 ,

wherein each of the chuck pawls is disposed to be interchangeable with a different type of chuck pawl.

7. The chuck device according to claim 1 ,

wherein the driving mechanism is configured to use an air cylinder as a driving source.

8. A component mounting machine comprising a mounting head,

wherein the chuck device according to claim 1 is interchangeably held by the mounting head.

9. A component mounting machine comprising a mounting head,

wherein the chuck device according to claim 7 is interchangeably held by the mounting head, and

wherein air pressure is supplied to the air cylinder of the chuck device through an air passage of the mounting head.

10. A component mounting machine comprising a mounting head,

wherein the chuck device according to claim 1 is interchangeably held by the mounting head, and

wherein the respective chuck pawls are moved upward and downward independently of each other by the cylindrical cam being rotated based on rotation of a rotary shaft of the mounting head.

11. A component mounting machine comprising a mounting head,

wherein the chuck device according to claim 5 is interchangeably held by the mounting head,

wherein the component mounting machine further comprises a rotation locking member locking the rotation of the tubular guide member when the chuck pawl in use is switched among the plurality of types of chuck pawls of the chuck device, and

wherein the respective chuck pawls are moved upward and downward independently of each other by the cylindrical cam being rotated based on rotation of a rotary shaft of the mounting head in a state where the chuck device is moved to a predetermined position by the mounting head and the rotation of the tubular guide member is locked by the rotation locking member.

12. The component mounting machine according to claim 11 , further comprising an actuator that moves the rotation locking member,

wherein the rotation locking member is moved to a position locking the rotation of the tubular guide member by the actuator during a chuck pawl switching operation for switching the chuck pawl in use among the plurality of types of chuck pawls of the chuck device, and the rotation locking member is retracted to a position not interfering with the chuck device by the actuator after the chuck pawl switching operation is completed.

13. The component mounting machine according to claim 11 ,

wherein a plurality of the chuck devices are held by the mounting head and a plurality of rotary shafts rotating the cylindrical cams of the plurality of chuck devices are disposed in the mounting head,

wherein a plurality of the rotation locking members are disposed to correspond to the plurality of chuck devices, and

wherein the respective chuck pawls of the plurality of chuck devices are moved upward and downward independently of each other by the cylindrical cams of the plurality of chuck devices being rotated based on rotation of the plurality of rotary shafts of the mounting head in a state where the plurality of chuck devices are moved to a predetermined position by the mounting head and the rotation of the tubular guide members of the plurality of chuck devices is locked by the plurality of rotation locking members.

14. The component mounting machine according to claim 11 , further comprising:

a camera imaging an imaging target; and imaging circuitry

configured to recognize a position of the rotation locking member by imaging the rotation locking member or a reference position section disposed with a certain positional relationship with the rotation locking member with the camera and processing the image.

15. The component mounting machine according to claim 8 , further comprising a check sensor checking the chuck pawl switched by the chuck pawl switching mechanism.