Linear motion device and electronic component mounting device

1 . A linear motion device that moves a moving body by a linear motor, when a moving direction of the moving body is defined as an X direction, a horizontal direction perpendicular to the X direction is defined as a Y direction, and a direction perpendicular to the X direction and the Y direction is defined as a Z direction, the linear motion device comprising:

a base that extends in the X direction;

a linear guide mechanism that includes

a plurality of guide rails fixed to the base and extending in the X direction, and

a slider supported movably on each of the guide rails along the X direction;

the moving body that is fixed to the sliders and that is movable in the X direction together with the sliders;

the linear motor that includes

a stator fixed to the base, the stator including a magnet row and extending in the X direction, and

a mover including a plurality of coils provided with a certain gap from the stator; and

a heat transfer body that is disposed between the moving body and the mover in the Y direction and that is connected to the moving body and the mover,

wherein the linear motor is fixed to an upper surface of the base in the Z direction, and is disposed above all the guide rails in the Z direction,

wherein the heat transfer body is disposed above all the guide rails in the Z direction,

wherein the heat transfer body includes a near end close to the linear guide mechanism and a far end far from the linear guide mechanism, and

wherein the heat transfer body includes, at the far end, a bent portion extending in a direction away from the moving body in the Y direction.

2 . The linear motion device of claim 1 ,

wherein the mover is disposed at a position above the linear guide mechanism in the Z direction.

3 . The linear motion device of claim 1 ,

wherein the heat transfer body is connected to the moving body via at least one spacer.

4 . The linear motion device of claim 1 ,

wherein the heat transfer body includes a heat dissipation fin.

5 . The linear motion device of claim 1 ,

wherein the heat transfer body includes, at the near end, a heat insulating portion that blocks radiant heat from the mover.

6 . The linear motion device of claim 1 , further comprising:

between the stator and the linear guide mechanism, a heat insulating plate that is fixed to the base and that blocks radiant heat from the mover.

7 . The linear motion device of claim 1 ,

wherein the heat transfer body has a first surface facing the mover,

wherein the first surface is coated with a substance that absorbs radiant heat from the mover, and

wherein the substance is a blackbody coating material or alumite.

8 . The linear motion device of claim 1 ,

wherein the heat transfer body has a first surface facing the moving body, and

wherein the first surface is a mirror surface.

9 . The linear motion device of claim 3 ,

wherein the at least one spacer includes two parallel spacers extending in the X direction, and

wherein a ventilation path penetrating in the X direction is provided between the two parallel spacers.

10 . The linear motion device of claim 1 ,

wherein the heat transfer body includes a support portion that supports a power supply cable connected to the mover on an upper side of the bent portion of the heat transfer body extending in a direction away from the moving body in the Y direction.

11 . An electronic component mounting device that mounts an electronic component on a substrate, the electronic component mounting device comprising:

the linear motion device of claim 1 ; and

a mounting head that is fixed to the moving body and that mounts the electronic component on the substrate.

12 . A linear motion device, comprising:

a base that extends in a reference direction;

a linear guide mechanism that includes

a guide rail fixed to the base and extending in the reference direction, and

a slider supported movably on the guide rail along the reference direction;

a moving body that is fixed to the slider and that is movable in the reference direction together with the slider;

a linear motor that includes

a stator fixed to the base, the stator including a magnet row and extending in the reference direction, and

a mover including a plurality of coils provided with a certain gap from the stator; and

a heat transfer body that is disposed between the moving body and the mover and that is connected to the moving body and the mover,

wherein the heat transfer body extends in a direction away from the linear guide mechanism,

wherein the heat transfer body has a first surface facing the moving body, and

wherein the first surface is a mirror surface.

13 . A linear motion device that moves a moving body by a linear motor, when a moving direction of the moving body is defined as an X direction, a horizontal direction perpendicular to the X direction is defined as a Y direction, and a direction perpendicular to the X direction and the Y direction is defined as a Z direction, the linear motion device comprising:

a base that extends in the X direction;

a linear guide mechanism that includes

a guide rail fixed to the base and extending in the X direction, and

a slider supported movably on the guide rail along the X direction;

the moving body that is fixed to the slider and that is movable in the X direction together with the slider;

the linear motor that includes

a stator fixed to the base, the stator including a magnet row and extending in the X direction, and

a mover including a plurality of coils provided with a certain gap from the stator; and

a heat transfer body that is disposed between the moving body and the mover in the Y direction and that is connected to the moving body and the mover,

wherein the linear motor is fixed to an upper surface of the base in the Z direction, and does not face the linear guide mechanism in the Y direction, and

wherein the heat transfer body is disposed above the linear guide mechanism in the Z direction, and does not face the linear guide mechanism in the Y direction,

wherein the heat transfer body has a first surface facing the mover,

wherein the first surface is coated with a substance that absorbs radiant heat from the mover, and

wherein the substance is a blackbody coating material or alumite.