Machining system

1. A machining system comprising:

a base; and

a plurality of machining modules which are detachably disposed on the base to be aligned with one another in a left-right direction,

wherein machining is sequentially performed by the plurality of machining modules with respect to a workpiece,

wherein at least one of the plurality of machining modules is a vertical lathe module,

wherein the vertical lathe module includes a spindle which supports a lower end portion of a workpiece and rotates the workpiece around an axis line extending in an up-down direction; a column which is erected behind the spindle; a beam which is supported by the column in a posture extending in a front-rear direction to be movable in the up-down direction and the front-rear direction; a turret which is supported at a front end of the beam, holds a plurality of edged tools, and is intermittently rotatable around an axis line parallel to the axis line of the spindle; and a beam moving device which moves the beam in the up-down direction and the front-rear direction in order to move the turret when machining of a workpiece is performed, and

wherein the beam is disposed to deviate to one side and the spindle is disposed to deviate to the other side in the left-right direction individually from a center of the vertical lathe module in the left-right direction.

2. A machining system comprising:

a base; and

a plurality of machining modules which are detachably disposed on the base to be aligned with one another in a left-right direction,

wherein machining is sequentially performed by the plurality of machining modules with respect to a workpiece,

wherein at least one of the plurality of machining modules is a vertical lathe module,

wherein the vertical lathe module includes a spindle which supports a lower end portion of a workpiece and rotates the workpiece around an axis line extending in an up-down direction; a column which is erected behind the spindle; a beam which is supported by the column in a posture extending in a front-rear direction to be movable in the up-down direction and the front-rear direction; a turret which is supported at a front end of the beam, holds a plurality of edged tools, and is intermittently rotatable around an axis line parallel to the axis line of the spindle; and a beam moving device which moves the beam in the up-down direction and the front-rear direction in order to move the turret when machining of a workpiece is performed,

wherein the vertical lathe module includes a tailstock device by which a rotary center at an upper end of a workpiece supported by the spindle is pressed downward, and

wherein the tailstock device has a rotation center whose tip portion is pressed against a workpiece, a tailstock which holds the rotation center and is supported by the column to be movable in the up-down direction along the column, and a tailstock moving device which moves the tailstock in the up-down direction.

3. The machining system according to claim 2 ,

wherein the tailstock includes a casing; a holder which is held inside the casing to be movable in the up-down direction and holds the rotation center; a liquid chamber which is defined by the casing and the holder, an inside of which is filled with an operating fluid, and a volume of which fluctuates due to a movement of the holder with respect to the casing; and a pressure applying mechanism which applies a pressure corresponding to a fluctuation in volume of the liquid chamber to the operating fluid inside the liquid chamber in order to generate a force reducing a movement of the holder with respect to the casing with a magnitude corresponding to an amount of the movement, and

wherein the tailstock device is configured to generate a force of the rotation center pressing a workpiece, depending on the pressure applying mechanism.

4. A machining system comprising:

a base; and

a plurality of machining modules which are detachably disposed on the base to be aligned with one another in a left-right direction,

wherein machining is sequentially performed by the plurality of machining modules with respect to a workpiece,

wherein at least one of the plurality of machining modules is a vertical lathe module,

wherein the vertical lathe module includes a spindle which supports a lower end portion of a workpiece and rotates the workpiece around an axis line extending in an up-down direction; a column which is erected behind the spindle; a beam which is supported by the column in a posture extending in a front-rear direction to be movable in the up-down direction and the front-rear direction; a turret which is supported at a front end of the beam, holds a plurality of edged tools, and is intermittently rotatable around an axis line parallel to the axis line of the spindle; and a beam moving device which moves the beam in the up-down direction and the front-rear direction in order to move the turret when machining of a workpiece is performed,

wherein the vertical lathe module includes a housing surrounding a workpiece supported by the spindle and the turret in order to define a machining space in front of the column,

wherein the housing has a workpiece conveying opening which is provided in front of the housing for carrying in and carrying out a workpiece with respect to the machining space, and a shutter for opening and closing the workpiece conveying opening, and

wherein the shutter has a plurality of shutter plates which are disposed to be aligned with one another in an up-down direction in a state where the shutter is closed and each of which partially covers the workpiece conveying opening, and a telescopic shutter plate moving mechanism which vertically moves the plurality of shutter plates in an interlocked manner to open and close the workpiece conveying opening such that a state where the plurality of shutter plates overlap each other and a state where the plurality of shutter plates are disposed to be aligned with one another in the up-down direction selectively realized.

5. The machining system according to claim 1 ,

wherein the vertical lathe module includes a housing surrounding a workpiece supported by the spindle and the turret in order to define a machining space in front of the column,

wherein the vertical lathe module includes a tailstock device by which a rotary center at an upper end of a workpiece supported by the spindle is pressed downward,

wherein the tailstock device has (a) a rotation center whose tip portion is pressed against a workpiece, (b) a tailstock which holds the rotation center and is supported by the column to be movable in the up-down direction along the column, and (c) a tailstock moving device which moves the tailstock in the up-down direction,

wherein the housing has a beam opening and a tailstock opening which are each provided on a rear side while the beam opening allows the beam to be inserted through an inside of the housing and the tailstock opening allows the tailstock to enter the inside of the housing, a beam opening movement allowing mechanism which maintains the machining space defined by the housing and allows the beam opening to vertically move in accordance with a vertical movement of the beam, and a tailstock opening movement allowing mechanism which maintains the machining space defined by the housing and allows the tailstock opening to vertically move in accordance with a vertical movement of the tailstock, and

wherein each of the beam opening movement allowing mechanism and the tailstock opening movement allowing mechanism has a frame which defines the opening and is vertically movable, a plurality of cover plates which are respectively disposed above and below the frame, and a telescopic cover plate movement allowing mechanism which allows the plurality of cover plates to move in accordance with a movement of the frame between a state where the plurality of cover plates overlap each other and a state where the plurality of cover plates are disposed to be aligned with one another in the up-down direction.