JP6068290B2 - Rolling equipment - Google Patents

Description

  The present invention relates to a rolling device.

  2. Description of the Related Art Conventionally, a rolling device that rolls a workpiece on which irregularities are formed is known (see, for example, Patent Document 1). In such a rolling device, since it is necessary to match the unevenness of the workpiece with the processed surface of the die before rolling, it is necessary to check the meshing. Therefore, conventionally, as shown in FIG. 8, the sensing member 1100 is abutted against the concavo-convex surface of the workpiece W supported by the centers 1001 and 1002 (target surface of the rolling process), and the sensing member 1100 when the abutment is abutted It is confirmed by the sensor 1200 provided in the vicinity of the sensing member 1100 whether or not the movement distance is greater than or equal to a predetermined distance, thereby confirming the engagement between the unevenness of the workpiece and the processed surface of the die. For example, the sensor 1200 is a proximity sensor or the like. When the sensing member 1100 is located at an initial position or the like, or when the moving distance of the sensing member 1100 is not a predetermined distance or more, the presence of the sensing member 1100 is present. When the movement distance of the sensing member 1100 at the time of abutment is not less than a predetermined distance, the presence of the sensing member 1100 is not detected. With such a configuration, when it is determined that the moving distance of the sensing member 1100 is equal to or greater than a predetermined distance (when the sensor 1200 no longer detects the presence of the sensing member 1100), the unevenness of the workpiece and the processed surface of the die Is determined to be appropriate, and the rolling process is started.

JP 2004-268109 A

  However, in the method shown in FIG. 8, it is necessary to adjust the position and shape of the sensing member 1100, the position of the sensor 1200, and the like depending on the shape of the workpiece W, and the engagement between the unevenness of the workpiece W and the processed surface of the die. The confirmation of the alignment was troublesome.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a rolling device that can easily check the engagement between the unevenness of the workpiece and the processed surface of the die. is there.

The rolling device according to the present invention is:
A rolling device that rolls a workpiece on which irregularities are formed,
A first die having a first central axis and a first machining surface for rolling the workpiece, and rotating about the first central axis as a rotation axis;
A second die having a second central axis parallel to the first central axis and a second machining surface for rolling the workpiece, the second die rotating about the second central axis;
A workpiece support mechanism that rotatably supports the workpiece and is movable along an orthogonal direction orthogonal to both the first central axis and the second central axis;
A movement mechanism that moves the workpiece support mechanism to bring the workpiece closer to the first die when confirming the engagement between the unevenness of the workpiece and the first processed surface of the first die;
A link mechanism for bringing the workpiece support mechanism closer to the other die as one of the first die and the second die is brought closer to the other die, and
The link mechanism is movable together with the first member approaching the other die side as the one die moves, and the first member approaching the other die side. A second member that moves the workpiece support mechanism closer to the other die side by being moved,
The second member is configured such that a surface pressed by the first member can be separated from the first member when the work support mechanism moves along the orthogonal direction by the moving mechanism.
The work support mechanism is movable along the orthogonal direction independently of the first die and the second die when the surface pressed by the first member is separated from the first member. ,
It is characterized by that.

In the rolling device,
The second member includes a recess into which the first member enters,
The recess includes a first inner surface and a second inner surface facing the first inner surface,
The first inner surface is pushed by the first member approaching the other die side,
In a state where the first inner surface is pressed by the first member, a gap is formed between the second inner surface and the first member.
You may do it.

The rolling device is
Detecting means for detecting the position of the workpiece moved by the moving mechanism;
Control means for determining that the rolling of the workpiece can be started when the position detected by the detection means is within a predetermined range within a predetermined distance from the first die. When,
Further comprising
You may do it.

The rolling device is
Control means for determining that the rolling of the workpiece can be started when the moving mechanism can move the workpiece to a predetermined position,
You may do it.

  According to the present invention, it is possible to easily confirm the engagement between the unevenness of the workpiece and the processed surface of the die.

It is a schematic sectional drawing of the rolling apparatus which concerns on one Embodiment of this invention. It is the schematic which looked at the rolling apparatus of FIG. 1 from the upper side. It is the schematic which looked at the rolling apparatus of FIG. 1 from the front side. It is an AA schematic sectional drawing of FIG. It is a figure explaining the meshing | engagement of a workpiece | work and a left die, (A) is a figure which shows a mode that a workpiece | work and a left die are meshing, (B) is a figure which shows a mode that a workpiece | work and a left die are not meshing. It is. It is the figure which looked at the rolling apparatus which concerns on a modification from the front side. It is a schematic sectional drawing of the rolling apparatus which concerns on a modification. It is a figure of the principal part of the rolling apparatus of a prior art.

  A rolling device 100 according to an embodiment of the present invention will be described with reference to the drawings.

  A rolling device 100 shown in FIG. 1 and the like is a device that rolls the outer peripheral surface of the workpiece W by pressing against the workpiece W while rotating the left die 132a and the right die 132b. The workpiece W may be, for example, a rod-like shape, and more specifically, may be a columnar shape or a cylindrical shape. In this embodiment, the outer peripheral surface (side surface) of the workpiece W has teeth that are uneven (including those having only a concave portion on the outer peripheral surface and those having only a convex portion on the outer peripheral surface). The surface is already formed. That is, the rolling device 100 is a device that performs burnishing rolling to improve the surface roughness of the tooth surface of the workpiece W. To improve the surface roughness of the tooth surface of the workpiece W, for example, the left die 132a and the right die 132b are used to smooth the tooth surface (each surface constituting the unevenness) and adjust the surface of the tooth surface. It is to smooth. For example, when the tooth surface has an uneven shape as shown in FIG. 5, each inclined surface W1 in FIG. 5 is smoothed as the surface of the tooth surface.

  As shown in FIGS. 1-4 (hatching which represents the cross section in the figure was abbreviate | omitted), the rolling apparatus 100 is the bed S, 1st rail R1, 2nd rail R2, and 3rd rail R3. A processing mechanism 130, a feeding device 140, a support mechanism 150, a link mechanism 160, a retracting mechanism 170, and a control device 190. In addition, in order to easily understand the structure of the rolling device 100, some members may be omitted in each drawing.

  In addition, let the rotating shaft direction of the workpiece | work W be the front-back direction. The left direction of the paper surface of FIG. The direction in which the right die 132b moves is the left-right direction. The upward direction on the paper surface of FIG. A direction perpendicular to the front-rear direction and the left-right direction is taken as the up-down direction. The upward direction on the paper surface of FIG.

  The bed S is a pedestal. On the bed S, a processing mechanism 130, a feeding device 140, a support mechanism 150, a link mechanism 160, a control device 190, a first rail R1, a second rail R2, and the like are arranged. Further, a retracting mechanism 170 and the like are attached to the side surface of the bed S.

  The first rail R1 and the second rail R2 are parallel and extend in the left-right direction, and are fixed to the upper surface of the bed S by screws (including bolts and the like; hereinafter the same applies to the screws). The third rail R3 extends in the left-right direction, and is fixed to the side surface of the bed S with screws or the like.

  The processing mechanism 130 includes a left die 132a, a left spindle stock 134a, a right die 132b, and a right spindle stock 134b.

  The left die 132a and the right die 132b constitute a set of dies for rolling one workpiece W, and each is a cylindrical member. Each of the outer peripheral surface 132aa of the left die 132a and the outer peripheral surface 132ba of the right die 132b is formed with a corresponding processing surface (also referred to as processing tooth) for rolling the workpiece W. The left die 132a and the right die 132b can be exchanged according to the shape of the workpiece W and the shape of the unevenness to be formed on the outer peripheral surface of the workpiece W.

  The left spindle stock 134a includes a left spindle stock main body 135a in which a drive unit (controlled by the control device 190) such as a servo motor is mounted, and a left main spindle 136a rotatably supported by the left spindle stock main body 135a. And comprising.

  The left headstock main body 135a includes a front support portion 135aa that supports the left main shaft 136a rotatably at the front side, and a rear support portion 135ab that supports the left main shaft 136a rotatably at the rear side.

  The left main spindle 136a is rotated by the drive unit of the left main spindle body 135a. For example, the rotational force generated by the drive unit is transmitted to the left main shaft 136a via a gear, a belt, or the like arranged in the left main spindle body 135a, and the left main shaft 136a rotates. The left die 132a is attached to the left main shaft 136a by an arbitrary attachment method. The left main shaft 136a and the left die 132a rotate with a central axis extending in the front-rear direction of the left main shaft 136a as a rotation axis.

  For example, the left main spindle 136a is detachably attached to the left main spindle body 135a. A through-hole 132ab penetrating in the front-rear direction is provided at the center of the left die 132a. Further, a convex portion 136aa is provided on the outer peripheral surface of the left main shaft 136a, and a concave portion 132ac is provided on the inner surface of the through hole 132ab. By passing the left main shaft 136a through the through-hole 132ab so that the convex portion 136aa enters the concave portion 132ac, the convex portion 136aa and the concave portion 132ac are engaged. Thus, the left die 132a is attached to the left main shaft 136a so that the left die 132a rotates together with the rotation of the left main shaft 136a. For example, the left die 132a may be fixedly attached to the left main shaft 136a passing through the through hole 132ab by using a screw or the like.

  The right spindle stock 134b includes a right spindle stock main body 135b in which a drive unit (controlled by the control device 190) such as a servo motor is mounted, and a right main spindle 136b rotatably supported by the right spindle stock main body 135b. And four blocks 139b attached to the lower part of the right headstock main body 135b with screws or the like.

  The right headstock main body 135b includes a front support portion 135ba that supports the right main shaft 136b rotatably on the front side, and a rear support portion 135bb that supports the right main shaft 136b rotatably on the rear side.

  The right main spindle 136b is rotated by the drive unit of the right main spindle body 135b. For example, the rotational force generated by the drive unit is transmitted to the right main shaft 136b via a gear, a belt, and the like disposed in the right main spindle body 135b, and the right main shaft 136b rotates. The right die 132b is attached to the right main shaft 136b by an arbitrary attachment method. The right main shaft 136b and the right die 132b rotate with a central axis extending in the front-rear direction of the right main shaft 136b as a rotation axis.

  For example, the right main spindle 136b is detachably attached to the right main spindle body 135b. In addition, a through hole 132bb that penetrates in the front-rear direction is provided in the center of the right die 132b. Further, a convex portion 136ba is provided on the outer peripheral surface of the right main shaft 136b, and a concave portion 132bc is provided on the inner surface of the through hole 132bb. The right main shaft 136b and the right die 132b are engaged by passing the right main shaft 136b through the through hole 132bb so that the convex portion 136ba enters the recess 132bc. As a result, the right die 132b is attached to the right main shaft 136b so that the right die 132b rotates together with the rotation of the right main shaft 136b. For example, the right die 132b may be fixedly attached to the right main shaft 136b passing through the through hole 132bb using screws or the like.

  In addition, in order to synchronize the rotation of the left die 132a and the rotation of the right die 132b, at the time of rolling, the phase of the concave and convex portions of the left die 132a and the phase of the concave and convex portions of the right die 132b are manually or automatically adjusted. Keep it available.

  Two of the four blocks 139b are provided corresponding to the first rail R1. The other two are provided corresponding to the second rail R2. A groove-like recess extending in the left-right direction is provided at the center of the lower surface of each of the four blocks 139b. The first rail R1 enters the recesses of two of the four blocks 139b, and the second rail R2 enters the recesses of the remaining two blocks. As a result, the right head stock 134b is disposed on the first rail R1 and the second rail R2, and each block 139b and the first rail R1 or the second rail R2 are engaged. By this engagement, the right head stock 134b moves so as to slide on the first rail R1 and the second rail R2 without derailing. Since the first rail R1 and the second rail R2 extend in the left-right direction, the right head stock 134b moves in the left-right direction. The right spindle stock 134b is moved by the feeding device 140.

  The left head stock 134a is fixed with screws or the like so that it cannot move with respect to the bed S. For this reason, the distance between the left dice 132a and the right dice 132b is adjusted by moving the right spindle stock 134b. The left dice 132a and the right dice 132b rotate in the same direction in synchronization.

  The feed device 140 may be any device that moves the right spindle stock 134b in the left-right direction. For example, the feeding device 140 includes a motor and a ball screw 141 that is rotated by the motor. One end of the ball screw 141 enters the right spindle stock 134b, and a mounting member such as a nut disposed in the right spindle stock 134b is attached to a portion of the one end side of the ball screw 141. Due to the rotational movement of the ball screw 141 rotated by the motor, a mounting member such as a nut moves in the left-right direction, and the right headstock 134b moves in the left direction or the right direction as the mounting member moves.

  The support mechanism 150 includes a support base 151, two blocks 152, a fixing member 153, a rod-shaped member 154, a front center portion 155, a rear center portion 157, and a rail connection portion 158.

  The support pedestal 151 is a pedestal of the support mechanism 150, and two blocks 152 are attached to the lower surface with screws or the like. One of the two blocks 152 is provided corresponding to the first rail R1, and the other one is also provided corresponding to the second rail R2. As with the block 139b, each block 152 is provided with a groove-like recess 152a extending in the left-right direction at the bottom. The first rail R1 enters one recess 152a of the two blocks 152, and the second rail R2 enters the other recess 152a. Thereby, each block 152 and 1st rail R1 or 2nd rail R2 engage, and the support base 151 moves so that it may slide without derailing on 1st rail R1 and 2nd rail R2. Since the first rail R1 and the second rail R2 extend in the left-right direction, the support base 151 moves in the left-right direction.

  A plurality of fixing members 153 are fixed to the upper surface of the support base 151 with screws or the like. Each of the plurality of fixing members 153 is provided with a through hole penetrating in the front-rear direction, and the rod-shaped member 154 is passed through the through hole. The rod-shaped member 154 is fixed by being fitted into the through hole of each fixing member 153 or is fixed to each fixing member 153 with a screw or the like through the through hole. The rod-shaped member 154 is supported by the fixing member 153 in a state of being separated from the upper surface of the support base 151.

  The rod-shaped member 154 is a rod-shaped member and extends along the front-rear direction. Further, the rod-shaped member 154 is immovable with respect to the support base 151.

  The front center portion 155 includes a fixed portion 155a fixed to the rod-shaped member 154, a cylinder 155b, a piston 155c accommodated in the cylinder 155b so as to be movable in the front-rear direction, and a front end connected to the piston 155c in the front-rear direction. A rod-shaped member 155d that can be moved to the front, a tubular member 155e that passes through the inside so that the rod-shaped member 155d can move in the front-rear direction, a front center 155f that is connected to one end on the rear side of the rod-shaped member 155d, and a cylinder 155b A fluid control device 155g for supplying a fluid, a fluid first supply / discharge passage 155h, a fluid second supply / discharge passage 155i, and a support member 155j attached to the fixed portion 155a and supporting the cylinder 155b are provided. The fluid control device 155g is controlled by the control device 190.

  The fixing portion 155a is provided with a first through hole penetrating in the front-rear direction. The rod-shaped member 154 passes through the first through-hole, and the fixing portion 155a is fixed to the rod-shaped member 154 by fitting or screwing. The The fixing portion 155a is provided with a second through hole, and the cylindrical member 155e is fixed to the second through hole by fitting or screwing. A rod-shaped member 155d passes through the cylindrical member 155e so as to be movable in the front-rear direction.

  The cylinder 155b is disposed on the front side of the fixed portion 155a. The cylinder 155b extends along the front-rear direction. The cylinder 155b accommodates the piston 155c. The first supply / discharge path 155h communicates with the front space defined by the piston 155c. The second supply / discharge path 155i communicates with the rear space separated by the piston 155c. A fluid flows through the first supply / discharge path 155h and the second supply / discharge path 155i. A fluid control device 155g for controlling fluid supply is connected to the first supply / discharge path 155h and the second supply / discharge path 155i.

  A piston 155c is attached to one end (one front end) of the rod-shaped member 155d, and a front center 155f is attached to the other end (one rear end). Attachment may be performed by screwing, fitting, screws, or the like.

  The fluid control device 155g is controlled by the control unit 190 and supplies fluid to the space on the rear side of the cylinder 155b via the first supply / discharge passage 155h. As a result, the piston 155c moves forward. By this movement, the rod-shaped member 155d moves forward, and the front center 155f moves forward. At this time, the fluid in the front space is discharged to the fluid control device 155g via the second supply / discharge path 155i.

  The fluid control device 155g is controlled by the control unit 190 and supplies the fluid to the space on the front side of the cylinder 155b via the second supply / discharge path 155i. As a result, the piston 155c moves rearward. By this movement, the rod-shaped member 155d moves rearward, and the front center 155f moves rearward. At this time, the fluid in the rear space is discharged to the fluid control device 155g via the first supply / discharge path 155h.

  In this way, by supplying fluid from the fluid control device 155g to the cylinder 155b via the second supply / discharge path 155i or the first supply / discharge path 155h, the front center 155f is moved in either the rear direction or the front direction. Can be moved.

  The rear center portion 157 includes a fixing portion 157a fixed to the rod-shaped member 154, and a rear center 157f attached to the fixing portion 157a by screwing, fitting, screws, or the like.

  The fixing portion 157a is provided with a through-hole penetrating in the front-rear direction. The rod-shaped member 154 passes through the through-hole, and the fixing portion 157a is fixed to the rod-shaped member 154 by fitting or screwing. The rear center 157f is fixed to the fixing portion 157a by fitting or screwing.

  With the above configuration, the front center 155f and the rear center 157f are opposed to each other. The workpiece W is sandwiched between the front center 155f and the rear center 157f, and the workpiece W is supported in a state of being separated from the support base 151 and the like. For example, when the workpiece W has a cylindrical shape, conical recesses are provided on the upper surface and the lower surface of the workpiece W (the front surface and the rear surface). Each of the front center 155f and the rear center 157f is formed in a conical shape with the tip aligned with the recess. As a result, the front end of the front center 155f enters the recess on the upper surface of the work W, the front end of the rear center 157f enters the recess on the lower surface of the work W, and the front center 155f and the recess on the upper surface of the work W, and the rear center. The workpiece W is rotatably supported by fitting the 157f and the recesses on the lower surface of the workpiece W. When the workpiece W is cylindrical, for example, the workpiece W may be rotatably supported so that the tip of the front center 155f and the tip of the rear center 157f enter the cylinder of the workpiece W.

  The front center 155f moves in the front-rear direction as described above. When the front center 155f moves to the rear side, the distance between the front center 155f and the rear center 157f is reduced, and the workpiece W is clamped. At this time, by increasing the fluid supply pressure by the fluid control device 155g, the clamping force of the workpiece W can be increased and the workpiece W can be firmly clamped. When the front center 155f moves to the front side, the distance between the front center 155f and the rear center 157f increases, and the workpiece W is unclamped.

  The support mechanism 150 supports the workpiece W in a rotatable manner. The rotation axis of the workpiece W is the central axis of the workpiece W. The rotation axis (center axis) of the left die 132a, the rotation axis (center axis) of the right die 132b, and the rotation axis (center axis) of the workpiece W are parallel to each other and are located in the same horizontal plane.

  The rail connecting portion 158 includes a bracket 158a fixed to the lower surface of the support base 151 with screws or the like, and a block 158b fixed to the bracket 158a with screws or the like. The block 158b is provided corresponding to the third rail R3. The block 158b is provided with a groove-like recess 158ba extending in the left-right direction, and the third rail R3 enters the recess 158ba. As a result, the rail connecting portion 158 is guided by the third rail R3 and moves in the left-right direction. That is, the support mechanism 150 is guided by the third rail R3 in addition to the first rail R1 and the second rail R2, and can move in the left-right direction.

  The link mechanism 160 is a mechanism that links the movement of the right headstock 134 b and the movement of the support mechanism 150. The link mechanism 160 includes a left mounting portion 160a attached to the right-hand surface of the left headstock main body 135a with a screw or the like, a pin 160b, and a left end attached to the left mounting portion 160a so as to be rotatable by the pin 160b or the like. Link member 160c, right mounting part 160d attached to the left side surface of right headstock main body 135b with screws or the like, pin 160e, and right side one end of which is rotatably attached to right mounting part 160d by pin 160e or the like A link member 160f.

  The left link member 160c is a rod-shaped member having a square section that is long in a predetermined direction. A through-hole that communicates with the left attachment portion 160a and one end of the left link member 160c is provided, and a pin 160b is inserted therein. With such a configuration, the left link member 160c can move around the pin 160b.

  The right link member 160f is a bar-like member having a square section that is long in a predetermined direction. A through-hole communicating with the right attachment portion 160d and one end of the right link member 160f is provided, and a pin 160e is inserted therein. With such a configuration, the right link member 160f can move around the pin 160e.

  The link mechanism 160 further includes a connection pin 160g. The connecting pin 160g has a columnar head 160ga. The connecting pin 160g connects the other end of the left link member 160c and the other end of the right link member 160f. The other end of the left link member 160c and the other end of the right link member 160f are provided with through-holes that communicate with each other, and an uneven portion that is combined with each other. With such a configuration, the left link member 160c and the right link member 160f are centered on the connecting pin 160g, and the angle θ formed by the left link member 160c and the right link member 160f (for example, the connecting pin 160g is the top) It can move so that the angle θ) formed by the central axis of the left link member 160c and the central axis of the right link member 160f changes.

  The left link member 160c and the right link member 160f have the same length. In particular, the distance from the pin 160b to the connecting pin 160g and the distance from the pin 160e to the connecting pin 160g are the same distance.

  The link mechanism 160 further includes a block 160h attached to the lower surface of the support base 151 with screws or the like. The block 160h includes a groove-shaped recess 160ha extending in the front-rear direction. The head 160ga of the connecting pin 160g enters the recess 160ha. The head 160ga of the connecting pin 160g is movable in the front-rear direction within the recess 160ha. Note that the length of the recess 160ha in the left-right direction (the width of the groove) is larger than the head 160ga, and a gap D is provided in the recess 160ha.

  When the right head stock 134b is moved in the left direction, the left link member 160c and the right link member 160f move so that the angle θ decreases. As a result, the connecting pin 160g moves rearward and leftward. The moving distance along the left direction of the connecting pin 160g is half of the moving distance along the left direction of the right headstock 134b.

  When the connecting pin 160g moves rearward and leftward, the inner surface (left inner surface) of the recess 160ha is pushed leftward by the head 160ga, and the block 160h is moved leftward. Along with this movement, the support base 151 also moves to the left, so that the workpiece W also moves to the left. In this way, when the right spindle stock 134b is moved leftward by the link mechanism 160, the workpiece W is also moved leftward together with the support mechanism 150. Since the movement distance of the workpiece W is half of the movement distance of the right spindle stock 134b, the workpiece W is always positioned in the middle between the left die 132a and the right die 132b even if the right spindle stock 134b moves. It will be. That is, the rotation axis of the workpiece W is positioned at the center between the rotation axis of the left die 132a and the rotation axis of the right die 132b. The concave portion 160ha is arranged so that the rotation axis of the workpiece W is positioned at the center between the rotation axis of the left die 132a and the rotation axis of the right die 132b when the right spindle stock 134b is moved in the left direction. The

  When the right head stock 134b is moved in the right direction, the left link member 160c and the right link member 160f move so as to increase the angle θ. As a result, the connecting pin 160g moves forward and to the right. The moving distance along the right direction of the connecting pin 160g is half of the moving distance along the right direction of the right headstock 134b.

  When the connecting pin 160g moves forward and rightward, the inner surface (right inner surface) of the recess 160ha is pushed rightward by the head 160ga, and the block 160h is moved rightward. Along with this movement, the support base 151 also moves in the right direction, so that the workpiece W also moves in the right direction. In this way, when the right spindle stock 134b is moved in the right direction by the link mechanism 160, the workpiece W is also moved in the right direction together with the support mechanism 150. Since the movement distance of the workpiece W is half of the movement distance of the right spindle stock 134b, even if the right spindle stock 134b moves, the workpiece W is always approximately in the middle (gap between the left die 132a and the right die 132b). D). In other words, the rotation axis of the workpiece W is located approximately at the center between the rotation axis of the left die 132a and the rotation axis of the right die 132b.

  The retraction mechanism 170 includes a piston 170a, a rod-like member 170b having one end attached to the piston 170a, a cylinder 170c that movably accommodates the piston 170a in the left-right direction, and a fluid control device 170d (control) that supplies fluid to the cylinder 170c. A first flow path 170e through which the fluid flows, a second flow path 170f through which the fluid flows, a connecting member 170g that connects the other end of the rod-shaped member 170b and the bracket 158a with a screw or the like, Is provided. Further, the retracting mechanism 170 has a support member 170h that attaches and supports the cylinder 170c to the bed S.

  The fluid control device 170d supplies fluid to the cylinder 170c, thereby moving the piston 170a in the left-right direction. Thereby, the rod-like member 170b of the retracting mechanism 170 moves. Since the other end of the rod-shaped member 170b and the bracket 158a are coupled by a coupling member 170g, and the bracket 158a is fixed to the support mechanism 150, the retracting mechanism 170 moves the support mechanism 150 in the left-right direction via the rod-shaped member 170b. Can be moved. For example, by supplying a fluid to the right space partitioned by the piston 170a in the cylinder 170c via the second flow path 170f (the fluid in the left space is discharged to the fluid control device 170d via the first flow path 170e. The piston 170a is moved leftward, and the support mechanism 150 is moved leftward. In this way, the retracting mechanism 170 retracts the support mechanism 150 in the left direction. For example, by supplying fluid to the left space partitioned by the piston 170a in the cylinder 170c via the first flow path 170e (the fluid in the right space is discharged to the fluid control device 170d via the second flow path 170f. The piston 170a is moved in the right direction, and the support mechanism 150 is moved in the right direction. In this way, the retracting mechanism 170 moves the support mechanism 150 in the right direction.

  When the piston 170a of the retracting mechanism 170 is moved in the left direction and the support mechanism 150 is retracted and moved in the left direction, the gap D is narrowed, but the connecting pin 160g presses the inner surface (right inner surface) of the recess 160ha of the block 160h. Therefore, only the support mechanism 150 moves. Accordingly, when the support mechanism 150 is retracted, the support mechanism 150 moves using the gap D, and moves independently of the link mechanism 160, the left dice 132a, the right dice 132b, and the like. When the piston 170a of the retracting mechanism 170 is moved in the right direction and the support mechanism 150 is moved in the right direction, the gap D becomes wide and the connecting pin 160g hits the inner surface (the left inner surface) of the recess 160ha of the block 160h. . In this state, the rotation axis of the workpiece W is located at the center between the rotation axis of the left die 132a and the rotation axis of the right die 132b.

  The support mechanism 150 supports the workpiece W. For this reason, moving the support mechanism 150 also means moving the workpiece W. The movement direction of the workpiece W and the right die 132b is a direction orthogonal to the rotation axis (center axis) of the left die 132a, the rotation axis (center axis) of the right die 132b, and the rotation axis of the workpiece W.

  The pull-in mechanism 170 also has a detection mechanism used for detecting the position of the support mechanism 150 (that is, the position of the workpiece W) by the control device 190.

  For example, as a detection mechanism, a plurality of magnetic scales (linear scales) are provided on the rod-like member 170b, and a magnetic sensor that reads the magnetic scale is provided at a predetermined position (for example, a predetermined position on the right side) of the cylinder 170c. The cylinder 170c provided with such a detection mechanism is a so-called measuring cylinder. The magnetic sensor converts the magnetism of the magnetic scale into an electric signal and outputs it to the control device 190. The plurality of magnetic scales provided on the rod-shaped member 170b are different in magnetism, and the magnetic sensor converts the magnetism of the nearest magnetic scale into an electric signal (a signal that differs depending on the magnetism) and outputs it to the control device 190. To do. The control device 190 detects the position of the rod-shaped member 170b (for example, the position after the rod-shaped member 170b is moved) by specifying which magnetic scale indicates the magnetic scale of the input electric signal. Can do. As described above, the support mechanism 150 is also moved by the movement of the rod-shaped member 170b. For this reason, detecting the position (moving position) of the rod-shaped member 170b also means detecting the position of the support mechanism 150 (that is, the position of the workpiece W). Thus, the control device 190 detects the position of the workpiece W by detecting the position of the rod-shaped member 170b.

  The plurality of magnetic graduations provided on the rod-shaped member 170b are of the same magnetism, and the magnetic sensor sequentially converts the magnetism of each of the plurality of magnetic graduations that sequentially approach as the rod-shaped member 170b moves in the left-right direction into electrical signals. You may make it output after converting. The control device 190 can detect the moving distance of the rod-shaped member 170b according to the number of times of input of the electric signal. For example, if the initial position of the bar-shaped member 170 is set, the control device 190 can detect the position of the bar-shaped member 170b, that is, the position of the workpiece W by detecting the movement distance.

  Further, as a detection mechanism, a magnetic body may be provided on the rod-like member 170b or the piston 170a, and a plurality of magnetic sensors may be provided at predetermined intervals in the cylinder 170c. The cylinder 170c (and piston 170a) provided with such a detection mechanism is a so-called measuring cylinder. Here, the plurality of magnetic sensors serve as a scale for detecting the position of the rod-shaped member 170b. Each of the plurality of magnetic sensors converts the magnetism of the nearby magnetic body into an electrical signal and outputs it when the magnetic body is in the vicinity. The control device 190 can detect the position of the rod-shaped member 170b, that is, the position of the workpiece W by specifying which magnetic sensor (or a plurality of magnetic sensors) has output the electric signal.

  As described above, the control device 190 can detect the position of the workpiece W by using the detection mechanism (for example, based on a signal from the detection mechanism). Even if the position of the workpiece W is detected by another method, the retracting mechanism 170 may be formed with a configuration corresponding to the detection method.

  The control device 190 includes a computer including a ROM (Read Only Memory), a RAM (Random Access Memory), and a CPU (Central Processing Unit), and controls the entire rolling device 100. The control device 190 also includes an operation unit and a display unit.

  For example, the control device 190 controls the feeding device 140 (such as a motor) to move the right spindle stock 134b and the like in the left-right direction. Further, the control device 190 controls the fluid control device 155g, moves the front center 155f in the front-rear direction, and clamps or unclamps the workpiece W. Further, the control device 190 controls the fluid control device 155g to increase the propulsive force that moves the front center 155f in the backward direction, and increases the clamping force of the workpiece W. The control device 190 controls the drive unit of the left head stock 134a and the drive unit of the right head stock 134b to rotate the left dice 132a and the right dice 132b. The control device 190 controls the fluid control device 170d to move the support mechanism 150 in the left-right direction. In addition, a signal for detecting the position of the workpiece W (such as an electrical signal from the magnetic sensor) is input to the control device 190 from the retracting mechanism 170.

  Next, the operation of the rolling device 100 will be described.

  The rolling device 100 brings the workpiece W close to the left die 132a before the rolling process and confirms whether the both meshes properly, and then starts rolling. For example, when the workpiece W is brought close to the left die 132a and the convex and concave portions of the workpiece W hit the convex portion of the processed surface of the left die 132a (the state of FIG. 5B), the concave and convex portions of the workpiece W And the processed surface of the left die 132a are not engaged with each other, the workpiece W cannot be rolled correctly. In this embodiment, the rolling is started after confirming whether the unevenness of the workpiece W and the processed surface of the left die 132a are properly meshed with each other. In FIG. 5 (B), the unevenness of the workpiece W and the unevenness of the processed surface of the left die 132a are separated from each other so that the drawing can be easily seen. And the top of the processed surface of the left die 132a are in contact with each other.

  The details of such operation will be described below.

  First, an operation for setting the range of the position of the workpiece W (the position of the support mechanism 150) that can be determined that the unevenness of the workpiece W and the processed surface of the left die 132a are properly meshed with each other will be described.

  For example, the user prepares a test work W. The control device 190 controls the fluid control device 155g and moves the front center 155f in the backward direction, triggered by a user operation (hereinafter simply referred to as a user operation) on the operation unit of the control device 190, and the like. Is clamped by the support mechanism 150. Thereafter, triggered by an operation by the user or the like, the control device 190 controls the feeding device 140 to move the right head stock 134b in the left direction by a predetermined distance. When the right head stock 134b moves, the support mechanism 150 (work W) is also moved by the link mechanism 160 along with this movement. The position after the movement of the right head stock 134b is a rolling initial position for starting the rolling of the workpiece W, and the position is set in advance. The rolling initial position is a position immediately before the workpiece W and the processed surface of the left die 132a start to mesh with each other, and the gap between the workpiece W and the left die 132a has a predetermined length (if determined in advance). It is a good position. When the support mechanism 150 is moved by the link mechanism 160, the control device 190 controls the fluid control device 170d so that there is no fluid in the cylinder 170c (or fluid) in order to reduce the influence on the movement. The support mechanism 150 may not be subjected to excessive force.

  Thereafter, the user rotates the left die 132a and the right die 132b or rotates the workpiece W so that the processed surface of the left die 132a and the unevenness of the outer peripheral surface of the workpiece W are properly meshed with each other. This operation is performed by operating the control device 190 or manually. In this way, the workpiece W and the left die 132a are aligned.

  Next, triggered by an operation by the user or the like, the control device 190 controls the fluid control device 170d to move the support mechanism 150 in the left direction until the workpiece W hits the processing surface of the left die 132a (the workpiece W). Until it can no longer move to the left), pull the support mechanism 150 to the left. At this time, as described above, the gap D is narrowed, but the connecting pin 160g (head 160ga) does not press the inner surface (right inner surface) of the recess 160ha of the block 160h, so only the support mechanism 150 moves. Since the workpiece W and the left die 132a are aligned, when the workpiece W hits the machining surface of the left die 132a, the unevenness of the workpiece W is properly meshed with the machining surface of the left die 132a (that is, Then, the unevenness of the workpiece W and the unevenness of the processed surface are appropriately meshed) (the state of FIG. 5A). In FIG. 5A, the unevenness of the workpiece W and the unevenness of the processed surface of the left die 132a are separated from each other so that the drawing is easy to see. Most of the surface (such as the slope W1) to be in contact with the surface (such as the slope Z1) constituting the unevenness of the processed surface of the left die 132a is in contact. Such a state is a state where the unevenness of the workpiece W and the processed surface of the left die 132a (unevenness of the processed surface) are properly meshed when the workpiece W hits the processed surface of the left die 132a. The width of the recessed portion 160ha may be set such that the retracting device 170 can retract the support mechanism 150 by a sufficient distance independently of the right headstock 134b (that is, the clearance D is sufficiently taken).

  Whether or not the workpiece W has hit the processing surface of the left die 132a may be determined by visual observation by the user or may be determined by processing of the control device 190. For example, when the user visually confirms that the workpiece W no longer moves to the left, it is assumed that the workpiece W has hit the machining surface of the left die 132a, and the pulling is completed by operating the operation unit of the control device 190. You may let them. For example, the control device 190 detects the position of the detection mechanism (the rod-shaped member 170b (work W) of the retracting mechanism 170 as described above during the period in which the support mechanism 150 is moved in the left direction. The position of the workpiece W is detected based on the signal from the magnetic sensor of the mechanism), and when the detected position of the workpiece W stops moving, the workpiece W hits the machining surface of the left die 132a. Retraction may be terminated.

  The control device 190 detects the position of the workpiece W at the timing when the workpiece W hits the machining surface of the left die 132a. This detection is performed using the detection mechanism in the pull-in mechanism 170 as described above. The control device 190 holds the detected position in a RAM or the like as a set position (for example, the position of the center axis of the workpiece W, for example, the position of the center axis in the state of FIG. 5A is the set position). . Further, the control device 190 holds a setting tolerance (for example, a range having a predetermined width centered on the setting position in FIG. 5A) with reference to the setting position in a RAM or the like. The unevenness of the workpiece W is slightly different even for the same type of workpiece W. In addition, even the unevenness of the same workpiece W has subtle vibration (distortion). In addition, the processed surface of the left die 132a also has subtle runout (distortion). For this reason, even if the unevenness | corrugation of the workpiece | work W and the processed surface of the left die 132a mesh | engaged appropriately (it meshed | engaged so that rolling was possible), the position of the said workpiece | work W may shift | deviate from a setting position. The set tolerance is the range of the position of the workpiece W that can be accepted when the unevenness of the workpiece W is properly meshed with the processed surface of the left die 132a (meshing state that can be rolled) (rolling of the workpiece W can be started) Range). For example, the set position is set to a position of X coordinate = X1 with the left-right direction as the X axis (left direction is positive). The position may be the position of the outer peripheral surface in addition to the rotation axis of the workpiece W. For example, the first position (X coordinate = X1-M1) moved rightward from the set position by a predetermined distance (M1) and the predetermined distance (M1 from the set position may be different from M1). A range (X1-M1 to X1 + M1) in which the second position (X coordinate = X1 + M1) moved to the left by the distance and the positions at both ends is set as the setting tolerance. The first position is the position of the workpiece W farthest from the left die 132a (for example, the position of the center axis of the workpiece W, which can be accepted when the unevenness of the workpiece W and the processed surface of the left die 132a are properly meshed with each other) The second position is the position of the workpiece W closest to the left die 132a that can be tolerated when the unevenness of the workpiece W and the processed surface of the left die 132a are properly meshed with each other (the position farthest from the central axis of the die 132a). For example, it is the position of the center axis of the workpiece W and the position closest to the center axis of the left die 132a. The setting tolerance may be defined only from the first position. That is, the set tolerance may be configured from a range of positions closer to the left die 132a than the first position. For example, the set tolerance is set to an X coordinate range of a value greater than or equal to X1-M1. In such a case, if the position of the workpiece W abutted against the left die 132a is closer to the left die 132a than the first position before rolling the workpiece W, which will be described later, the position of the workpiece W is set. It will be within tolerance.

  In this way, the range of the position of the workpiece W that can be determined that the unevenness of the workpiece W and the processed surface of the left die 132a are properly meshed with each other is set.

  Next, the operation of the rolling device 100 when rolling the workpiece W for mass production of the workpiece W will be described. This operation is started when triggered by a user operation or the like. Further, the right spindle stock 134b is assumed to be at the processing origin position (position at the start of processing). The processing origin position is set in advance.

  For example, the user prepares the work W. The control device 190 controls the fluid control device 155g triggered by an operation by the user, moves the front center 155f in the backward direction, and clamps the workpiece W. Thereafter, triggered by an operation by the user, the control device 190 controls the feeding device 140 (motor or the like) to move the right head stock 134b in the left direction to the rolling initial position. At this time, the control device 190 controls the drive unit of the left headstock 134a and the drive unit of the right headstock 134b to rotate the left dice 132a and the right dice 132b at the same speed and in the same direction at a low speed. The position of the support mechanism 150 when the right spindle stock 134b is moved to the rolling initial position is also referred to as a support mechanism initial position.

  When the right head stock 134b is moved to the rolling initial position, the control device 190 controls the fluid control device 170d to move the support mechanism 150 leftward until the workpiece W hits the processing surface of the left die 132a. Then, the support mechanism 150 is pulled to the left side. At this time, as described above, the gap D is narrowed, but the connecting pin 160g (head 160ga) does not press the inner surface (right inner surface) of the recess 160ha of the block 160h, so only the support mechanism 150 moves. As described above, the control device 190 detects the position of the workpiece W, and when the detected position of the workpiece W stops moving, the control device 190 determines that the workpiece W has hit the machining surface of the left die 132a, and performs the pull-in. finish. Even if the workpiece W hits the processed surface of the left die 132a, the rotation of the left die 132a and the right die 132b is continued. For this reason, when the workpiece W hits the processed surface of the left die 132a, the workpiece also rotates together with the left die 132a.

  The control device 190 detects the position of the workpiece W at the timing when the workpiece W hits the machining surface of the left die 132a. This detection is performed using the detection mechanism in the pull-in mechanism 170 as described above. And the control apparatus 190 discriminate | determines whether the detected position is in a setting tolerance, and when it is not in a setting tolerance (for example, state of FIG. 5 (B)), it controls the fluid control apparatus 170d, The support mechanism 150 is once moved rightward and moved to the support mechanism initial position. Thereafter, the control device 190 controls the fluid control device 170d to move the support mechanism 150 again in the left direction, and pulls the support mechanism 150 to the left until the workpiece W hits the processing surface of the left die 132a. Since the left dice 132a and the right dice 132b continue to rotate, the surface where the left dice 132a and the workpiece W abut with each other is different from the previous retraction. The control device 190 detects again the position of the workpiece W at the timing when the workpiece W hits the machining surface of the left die 132a, and determines whether the detected position is within the set tolerance. The control device 190 repeats such processing until the detected position falls within the set tolerance.

  When the detected position is within the set tolerance (for example, the state shown in FIG. 5A), it is acceptable that the unevenness of the workpiece W is properly meshed with the processing surface of the left die 132a. Since the rolling can be started, the control device 190 determines that the rolling can be started and starts the rolling.

  First, the control device 190 controls the drive unit of the left headstock 134a and the drive unit of the right headstock 134b to rotate the left die 132a and the right die 132b while synchronizing them at high speed (rotation speed necessary for rolling). Let At this time, since the left die 132a and the workpiece W are in mesh with each other, the workpiece W is also rotated (rotated) by the rotation of the left die 132a. In this state, the control device 190 controls the feeding device 140 (such as a motor), gradually moves the right headstock 134b in the left direction, and presses the right die 132b against the work W (the right die 132b and the left die). 132a, because the phase of the machining surface is adjusted in advance, the machining surface of the right die 132b and the unevenness of the workpiece W are engaged with each other), and machining by rolling is executed. Note that the control device 190 controls the fluid control device 170d to draw out the fluid from the cylinder 170c (or make the fluid go in and out freely) in order to reduce the influence on the rolling at the time of rolling. It is also possible that no extra force is applied to 150. After the rolling process, the control device 190 controls the feeding device 140 (motor) to move the right spindle stock 134b in the right direction to the processing origin position.

  By repeating the above series of steps, the workpiece W can be mass-produced.

  In this embodiment, with the above configuration, the support mechanism 150 is orthogonal to the rotation axis of the left die 132a and the rotation axis of the workpiece W in order to confirm the engagement between the unevenness of the workpiece W and the processed surface of the left die 132a. A retracting mechanism 170 is provided to move the workpiece W close to the left die 132a by moving in the orthogonal direction. The support mechanism 150 is moved along the orthogonal direction by the retracting mechanism 170 independently of the left die 132a and the right die 132b. Therefore, the engagement between the unevenness of the workpiece W and the processed surface of the left die 132a can be confirmed at the position of the workpiece W, and the conventional engagement of the unevenness of the workpiece W and the processed surface of the left die 132a can be confirmed. There is no need to change the sensing member or sensor position for confirmation of alignment depending on the shape of the workpiece W, etc. It can be performed to. In particular, since the movement direction of the workpiece W is the same at the time of confirmation of engagement and at the time of rolling (further, the movement direction of the workpiece W is the same as the movement direction of the right die 132b), Confirmation is easy.

  Further, in this embodiment, with the above configuration, a link mechanism 160 is provided to bring the support mechanism 150 closer to the left die 132a as the right die 132b approaches the left die 132a. Along with the movement, the connecting pin 160g approaching the left dice 132a side and the support mechanism 150 can be moved together. The connecting pin 160g approaching the left dice 132a side is pushed and moved to move the support mechanism 150 to the left dice 132a side. A second member that approaches The block 160h is configured such that the surface pressed by the connecting pin 160g can be separated from the connecting pin 160g when the supporting mechanism 150 moves along the orthogonal direction by the retracting mechanism 170. The surface pressed by the connecting pin 160g (the inner surface on the left side of the recess 160ha) is separated from the connecting pin 160g, so that the left die 132a and the right die 132b can move along the orthogonal direction independently. With such a configuration, it is possible to check the engagement between the unevenness of the workpiece W and the processed surface of the left die 132a using the link mechanism 160. Further, with such a configuration, it is possible to confirm the meshing with a simple configuration.

  In this embodiment, the block 160h includes a recess 160ha into which the connecting pin 160g enters, and the recess 160ha has a first inner surface (the inner surface on the left side of the recess 160ha) and a first inner surface facing the first inner surface. In the state where the first inner surface is pushed by the connecting pin 160g approaching the right die 132b side, and the first inner surface is pushed by the connecting pin 160g. And a gap D is formed between the connecting pin 160g. With such a configuration, it is possible to check the engagement between the unevenness of the workpiece W and the processed surface of the left die 132a using the link mechanism 160. Further, with such a configuration, it is possible to confirm the meshing with a simple configuration.

  Further, in this embodiment, with the above-described configuration, detection means for detecting the position of the workpiece W moved by the pulling mechanism 170 (here, the control device 190 for detecting by the detection mechanism of the pulling mechanism 170), and the detection means The detected position is a range of a position within a predetermined distance from the first die and within a predetermined range (here, within a set tolerance of a range of X1-M1 to X1 + M1, or X1-M1) Control means for determining that the rolling of the workpiece can be started when the workpiece W is within the set tolerance (here, the position of the workpiece W abutting against the left die 132a is within the setting tolerance). And a control device 190) for determining that rolling can be started. As a result, the meshing is confirmed by the control means, so that the meshing between the unevenness of the workpiece W and the processed surface of the left die 132a can be easily confirmed, and rolling can be performed efficiently. Further, in the above embodiment, the control means works until the position detected by the detection means is a range of positions within a predetermined distance from the first die and is within a predetermined range set in advance. Rolling is started when the position detected by the detection means reaches a position within a predetermined range by repeatedly abutting W against the left die 132a, etc., so it is possible to automate from confirmation of meshing to rolling. Rolling can be performed efficiently. The predetermined range may be appropriately changed by a user operation or the like.

  Further, in this embodiment, the retracting mechanism 170 (particularly the detection mechanism) is disposed outside the processing space of the workpiece W (for example, an area surrounded by two dies, two centers, and the bed S). (Here, the rolling space is on the bed S, while the retracting mechanism 170 is on the side), the retracting mechanism 170 does not interfere with the rolling of the workpiece, and is used when the workpiece W is rolled. It is possible to reduce (including the elimination of) contamination of the retracting mechanism 170 caused by oil (for example, work oil).

  Further, in this embodiment, the distance between the workpiece W and the left die 132a is made closer or separated while rotating the left die 132a, so that the unevenness of the workpiece W and the processed surface of the left die 132a are engaged with each other. Confirmation can be automated, and it is easy to confirm the meshing between the unevenness of the workpiece W and the processed surface of the left die 132a, and rolling can be performed efficiently. In particular, since the left die 132a is rotated at a low speed (slower than at the time of rolling and may be a predetermined speed necessary for confirmation of meshing), the workpiece W is hardly damaged at the time of meshing confirmation. Become. Further, since the workpiece W is abutted while rotating the left die 132a, even if the unevenness of the workpiece W and the machining surface of the left die 132a are slightly displaced at the time of the abutting, the machining surface of the left die 132a is In addition, the workpiece W may rotate, and the engagement between the unevenness of the workpiece W and the processed surface of the left die 132a may be improved. For this reason, it is easy to adjust the meshing between the unevenness of the workpiece W and the processed surface of the left die 132a.

  Further, the control device 190 may include a nonvolatile memory. And if the control apparatus 190 memorize | stores the said setting tolerance in a non-volatile memory for every several types of workpiece | work from which a shape differs, setting of a setting tolerance will be carried out at the time of processing each of a plurality of types of workpiece | work with different shapes. And the like, and the number of rolling setup steps can be reduced. The setting tolerance may be stored by a digital switch or the like. In addition, in this embodiment, it is possible to eliminate a conventionally required process such as manually changing the position of the sensor, and the accuracy of checking the engagement between the unevenness of the workpiece W and the processing surface of the left die 132a is also improved. Stabilize.

  The embodiment of the present invention has been described above, but the present invention is not limited to the embodiment described above, and the embodiment has been changed (deletion of components) without departing from the gist of the present invention. Etc.). Although a modification is described below, at least some of the configurations of the following modifications may be combined.

  For example, both the left dice 132a and the right dice 132b may be movable in the left-right direction. In this case, as shown in FIG. 7, it is only necessary to provide four blocks 139a (similar to the block 139b) attached to the lower part of the left headstock main body 135a with screws or the like. In this case, as shown in FIG. 7, a feed device 140 for the left head stock main body 135a may be further provided, and the link mechanism 160 may be omitted. In such a case, the position of the support mechanism 150 is adjusted (in particular, the position of the support mechanism 150 is set so that the rotation axis of the workpiece W is located in the middle between the rotation axis of the left die 132a and the rotation axis of the right die 132b). The adjustment mechanism 170 moves the workpiece W closer to (but against) the left die 132a (or the right die 132b). Even if it is such a structure, the effect similar to the said embodiment is acquired suitably. When the position when the workpiece W is abutted against the left die 132a (or right die 132b) is within the set tolerance, the left die 132a (or right die 132b) and the workpiece W are rotated together as in the above embodiment. Then, the right die 132b (or the left die 132a), which is the die that is not abutted therewith, may be pressed and rolled. Further, in order to reduce the influence on the rolling, the fluid control device 170d is controlled so that the fluid is extracted from the cylinder 170c (or the fluid can enter and exit freely) so that no excessive force is applied to the support mechanism 150. May be. In such a modification, the moving direction of the workpiece W (the moving direction at the time of meshing confirmation) is the same as the moving direction of one die (because it is parallel to and in the same plane as the moving direction of both dies). The confirmation of the engagement is easy.

  The control device 190 may be an NC device, may be provided on the bed S, or may be installed at a position distant from the bed S and connected to the controlled object by wire or wirelessly.

  In the above embodiment, the detection mechanism is provided inside the pull-in mechanism 170 (particularly, inside the cylinder 170c). However, the detection mechanism may be provided outside the pull-in mechanism 170 or the cylinder 170c. For example, a linear scale may be provided outside the cylinder 170c, and the position of the workpiece W may be detected using the linear scale. The position may be detected not on the control device 190 but on the detection mechanism side. The manufacturing cost of the rolling device 100 can be reduced by using the cylinder 170c as a measuring cylinder or the like and detecting the position of the workpiece W.

  The position of the workpiece W used in the setting position and the setting tolerance depends on the movement distance of the workpiece W (for example, a distance based on the position of the workpiece W (work initial position) when the support mechanism 150 is in the support mechanism initial position). You may make it show. In this case, for example, a value obtained by subtracting the X coordinate of the initial position of the workpiece from the X coordinate of the position of the workpiece W when the left-right direction is the X axis is detected as the movement distance. You may make it compare with a setting tolerance (The setting tolerance in this case is set according to a movement distance.). The position of the workpiece W may be any information as long as the information can identify the position of the workpiece W.

  The pull-in mechanism 170 may be anything that moves the support mechanism 150. For example, the pull-in mechanism 170 is pushed instead of retracted in order to confirm the engagement between the unevenness of the workpiece W and the processed surface of the left die 132a. You may move by.

  In the above embodiment, various devices are moved using various cylinders, but at least one of the various devices may be moved by a motor or the like. Further, the feeding device 140 may have a structure in which the left headstock main body 135a or the right headstock main body 135b is moved by a fluid similarly to the retracting mechanism 170 or the like.

  In the above embodiment, the workpiece W is moved by the retracting mechanism 170 until it hits the left die 132a. However, the workpiece W may not be moved until it hits the left die 132a. For example, the control device 190 sequentially detects the position when the workpiece W is moved in the left direction, and when the position falls within the set tolerance, the movement of the workpiece W is terminated and rolling is possible. It may be determined. It should be noted that the configuration and the like can be simplified when the workpiece W is moved by the retracting mechanism 170 until it hits the left die 132a.

  Further, the control device 190 is a position where the retracting device 170 can accept an arbitrary position (appropriate engagement between the unevenness of the workpiece W and the processing surface of the left die 132a), and between the workpiece W and the left die 132a. The workpiece W can be brought close to the left die 132a up to a predetermined position (a position range set in the same manner as the above set tolerance) based on the position where the workpiece W is abutted against the left die 132a in the aligned state. In this case, it may be determined that rolling is possible. For example, the drawing-in device 170 outputs the drawing amount of the workpiece W to the control device 190, and the control device 190 reaches the predetermined value for the inputted drawing-in amount (which may be specified by the position of the workpiece W). Sometimes it may be determined that rolling is possible.

  The left dice 132a may be moved instead of the right dice 132b. Furthermore, the direction in which the support mechanism 150 is moved to confirm the engagement between the unevenness of the workpiece W and the processed surface of the left die 132a is not the direction approaching the left die 132a, but the direction approaching the right die 132b. Good.

  The configuration of the link mechanism 160 is not limited to the above. What is necessary is just to move the support mechanism 150 according to the distance of the left dice 132a and the right dice 132b. The link mechanism 160 includes a first member that moves in accordance with the approach of the left die 132a and the right die 132b (in the above, the connecting pin 160g), and a first surface that is pressed by the moving first member (in the above, the concave portion). 160ha, and a second member that moves with the support mechanism 150 when pressed by the moving first member (block 160h in the above). For example, the second member is a second surface pushed by the first member that moves as the left die 132a and the right die 132b move away from each other (in the above, the right surface of the recess 160ha, and the right headstock 134b) It is not necessary to have a surface that is pushed by the connecting pin 160g by moving in the right direction and moves the support mechanism 150 in the right direction. Specifically, for example, the recess 160ha is not groove-shaped but may be notched (shape in which the bottom surface of the recess 160ha reaches the side surface of the block 160h). If the second surface is not provided, the support mechanism 150 cannot be moved in the right direction via the link mechanism 160. Instead, if the support mechanism 150 is moved in the right direction by the retracting device 170 or the like. Good. The second member may be any member that does not obstruct the support mechanism 150 from being pulled by the pulling mechanism 170 so as to form a space such as the gap D on the opposite side of the first surface with respect to the first member. . In addition, since the 2nd member has the 1st surface and the 2nd surface, since the support mechanism 150 can be moved to the left direction and the right direction by the link mechanism 160, it is useful.

S Bed D Gap W Work R1 First rail R2 Second rail R3 Third rail 100 Rolling device 130 Processing mechanism 132a Left die 132b Right die 140 Feeder 150 Support mechanism 160 Link mechanism 160g Linking pin 160h Block 160ha Recess 170 Retraction mechanism 170c Cylinder 190 Control device

Claims (4)

A rolling device that rolls a workpiece on which irregularities are formed,
A first die having a first central axis and a first machining surface for rolling the workpiece, and rotating about the first central axis as a rotation axis;
A second die having a second central axis parallel to the first central axis and a second machining surface for rolling the workpiece, the second die rotating about the second central axis;
A workpiece support mechanism that rotatably supports the workpiece and is movable along an orthogonal direction orthogonal to both the first central axis and the second central axis;
A movement mechanism that moves the workpiece support mechanism to bring the workpiece closer to the first die when confirming the engagement between the unevenness of the workpiece and the first processed surface of the first die;
A link mechanism for bringing the workpiece support mechanism closer to the other die as one of the first die and the second die is brought closer to the other die, and
The link mechanism is movable together with the first member approaching the other die side as the one die moves, and the first member approaching the other die side. A second member that moves the workpiece support mechanism closer to the other die side by being moved,
The second member is configured such that a surface pressed by the first member can be separated from the first member when the work support mechanism moves along the orthogonal direction by the moving mechanism.
The work support mechanism is movable along the orthogonal direction independently of the first die and the second die when the surface pressed by the first member is separated from the first member. ,
A rolling device characterized by that. The second member includes a recess into which the first member enters,
The recess includes a first inner surface and a second inner surface facing the first inner surface,
The first inner surface is pushed by the first member approaching the other die side,
In a state where the first inner surface is pressed by the first member, a gap is formed between the second inner surface and the first member.
The rolling device according to claim 1 . Detecting means for detecting the position of the workpiece moved by the moving mechanism;
Control means for determining that the rolling of the workpiece can be started when the position detected by the detection means is within a predetermined range within a predetermined distance from the first die. When,
Rolling apparatus according to claim 1 or 2, further comprising a. Rolling apparatus according to claim 1 or 2, characterized in that said moving mechanism further comprises control means for determining a possible start of rolling of the workpiece when it is possible to move the workpiece to a predetermined position .

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