JP5199839B2 - Spinning apparatus operating method and spinning apparatus - Google Patents

Description

  The present invention includes a roller that presses a plate-shaped workpiece against a rotating mold and processes the workpiece into a shape along the outer peripheral surface of the mold, and the roller is moved by the fluid pressure of the driving fluid. A lateral feed mechanism that moves in a lateral direction parallel to the rotational axis; a vertical feed mechanism that moves the roller in a longitudinal direction that intersects the rotational axis of the mold by fluid pressure of the driving fluid; and the lateral feed mechanism. Manual operation type roller moving operation tool for instructing the moving direction and moving speed in the direction and the vertical direction, respectively, and the operation of each of the lateral feed mechanism and the vertical feed mechanism based on the operation state of the roller moving operation tool. The present invention relates to an operation method of a spinning processing apparatus provided with a control means for controlling, and the spinning processing apparatus.

In such a spinning processing apparatus, an operator operates a manually operated roller moving operation tool to instruct the moving direction and moving speed of the roller in each of the horizontal direction and the vertical direction. As a result, the work piece is spun into a shape along the outer peripheral surface of the mold by moving the roller along the outer peripheral surface while pressing the roller against the outer peripheral surface of the mold with the work material interposed therebetween. (For example, refer to Patent Document 1).
Such a spinning processing apparatus performs, for example, a teaching process, and in this teaching process, a roller moving operation tool is operated to obtain a preferable operating state. At the time of teaching, a roller is molded on the outer peripheral surface of the mold. In some cases, the outer peripheral surface portion having a large degree of spread that spreads in a direction perpendicular to the rotational axis of the mold is moved.
In such a case, in the conventional operation method, the roller moving operation tool is operated so that the moving direction of the roller in the vertical direction is reversed in the direction away from the direction approaching the rotation axis of the mold.

  When the roller moves on the outer peripheral surface of the mold that has a small degree of spread in the direction perpendicular to the axis of rotation of the mold, the roller movement operation tool sets the moving direction of the roller in the vertical direction as the axis of rotation. Even when operated in the approaching direction, the roller can be moved along the outer peripheral surface of the mold in the direction away from the rotation axis by the propulsive force in the direction parallel to the rotation axis by the lateral feed mechanism. .

JP 10-2111526 A

Here, in the conventional spinning apparatus, when the roller moves on the outer peripheral surface portion of the mold having a large degree of spread in the direction perpendicular to the rotational axis of the mold, particularly from the outer peripheral surface portion having a small degree of spread. When moving to the outer peripheral surface portion, if the roller moving operation tool is operated so that the moving direction of the roller in the vertical direction is closer to the rotational axis, the roller is moved away from the rotational axis to the outer peripheral surface of the mold. Could not move properly along. Therefore, it has been necessary to appropriately reverse the moving direction of the roller in the vertical direction in the direction away from the rotation axis by the roller moving operation tool.
However, it is difficult to accurately perform the operation of reversing the moving direction of the roller in the vertical direction in the direction away from the rotation axis of the mold by using the roller moving operation tool. Therefore, it is difficult to appropriately move the roller along the outer peripheral surface of the mold in a direction away from the rotation axis of the mold, and it is difficult to appropriately spin the workpiece.
For example, in manual operation of the roller movement operation tool, it takes too much time to reverse the direction of movement of the roller, or the speed of movement of the roller when the direction of movement of the roller is reversed is too fast. In some cases, it may not be possible to appropriately move along the outer peripheral surface of the mold in a direction away from the rotational axis of the mold. In such a case, the thickness of the workpiece becomes too thin, or the drawing cannot be performed so that the workpiece is properly aligned with the outer peripheral surface of the mold.

  The present invention has been made in view of such a situation, and the object thereof is to spread particularly when the roller moves in a portion where the degree of spread in the direction perpendicular to the rotation axis is large on the outer peripheral surface of the mold. An object of the present invention is to provide a method of operating a spinning processing apparatus and a spinning processing apparatus capable of appropriately spinning a workpiece even when shifting from a small peripheral surface portion to a large peripheral surface portion.

In order to achieve the above object, an operation method of a spinning processing apparatus according to the present invention includes a roller that presses a plate-shaped workpiece against a rotating mold and processes the workpiece into a shape along the outer peripheral surface of the mold. When,
A lateral feed mechanism for moving the roller in a lateral direction parallel to the rotational axis of the mold by the fluid pressure of the driving fluid;
A longitudinal feed mechanism that moves the roller in the longitudinal direction intersecting the rotational axis of the mold by the fluid pressure of the driving fluid;
A manually operated roller moving operation tool for commanding the moving direction and moving speed of the roller in the horizontal direction and the vertical direction, respectively;
An operation method of a spinning processing apparatus provided with a control means for controlling the operation of each of the transverse feed mechanism and the longitudinal feed mechanism based on an operation state of the roller moving operation tool,
The first characteristic configuration is provided with an upper limit pressure setting means for variably setting the upper limit pressure of the driving fluid supplied to the longitudinal feed mechanism in the spinning processing device,
Due to the upper limit pressure setting means, the moving amount of the roller in the direction perpendicular to the rotation axis is larger than the reference movement amount while moving the set movement amount in a direction parallel to the rotation axis of the mold. A sudden expansion movement upper limit pressure that is an upper limit pressure that is adopted during movement is an upper limit pressure that is adopted during normal movement in which the movement amount of the roller in the vertical direction is equal to or less than the reference movement amount while the set movement amount is moved in the parallel direction. The lower limit is set to be smaller than the reference upper limit pressure, and the spinning process is executed.

  According to the above characteristic configuration, when the moving direction and the moving speed of the roller are instructed to move the roller along the outer peripheral surface by the roller moving operation tool, When the roller movement amount in the direction perpendicular to the rotation axis is larger than the reference movement amount while moving the set movement amount in a direction parallel to the rotation axis of the The upper limit pressure of the drive fluid supplied to the mechanism is abruptly smaller than the reference upper limit pressure employed during normal movement in which the roller movement amount in the vertical direction is less than the reference movement amount while the set movement amount is moved in the parallel direction. Set to the upper limit of expansion movement.

  Incidentally, the outer peripheral surface of the mold depends on the relationship between the amount of movement of the roller in the direction parallel to the rotation axis of the mold and the amount of movement in the direction perpendicular to the rotation axis away from the rotation axis. The degree of spread in the direction perpendicular to the axis of rotation of This degree of spread corresponds to the amount of movement of the roller in the direction perpendicular to the rotational axis while moving the set amount of movement in a direction parallel to the rotational axis of the mold. The degree of spread (for example, gradient) in the direction perpendicular to the rotational axis of the outer circumferential surface of the outer peripheral surface of the outer peripheral surface of the outer peripheral surface of the outer peripheral surface of the outer peripheral surface of the outer peripheral surface of the

In the present application, when shifting from the normal movement to the sudden expansion movement, the upper limit pressure of the driving fluid supplied to the vertical feed mechanism is set smaller than that when the roller is slowly expanding and moving the outer peripheral surface portion.
Then, in the outer peripheral surface of the mold, the degree of expansion in the direction perpendicular to the rotational axis of the mold is less than the reference degree of expansion, and the degree of expansion from the outer peripheral surface portion to the vertical direction is greater than the reference degree of expansion. When the roller moves to a large rapidly expanding outer peripheral surface portion, the roller can follow the shape of the outer peripheral surface of the mold well without changing the command state of the moving direction in the vertical direction by the roller moving operation tool. .
Therefore, even when the roller moves from the slowly expanding outer peripheral surface portion to the rapidly expanding outer peripheral surface portion, the roller is moved away from the rotation axis without changing the command state of the moving direction in the vertical direction by the roller moving operation tool. It becomes possible to move appropriately along the outer peripheral surface of the mold in the direction.
As a result, when the roller moves in a portion where the degree of spread in the direction perpendicular to the rotation axis is large on the outer peripheral surface of the mold, particularly when the outer peripheral surface portion where the degree of spread is small shifts to the large outer peripheral surface portion. Thus, it is possible to provide a method of operating a spinning processing apparatus that can appropriately spin a workpiece.

In addition to the first feature configuration, the second feature configuration of the operating method of the spinning device according to the present invention is as follows.
The roller movement operation tool includes an operation lever capable of instructing a movement direction in one or both of the horizontal direction and the vertical direction of the roller based on a tilting direction from a neutral position to the periphery thereof. , Configured to command the fluid pressure of the driving fluid to the lateral feed mechanism or the vertical feed mechanism based on the amount of tilt of the operation lever,
The upper limit pressure setting means is configured to set the sudden expansion movement upper limit pressure smaller than the reference upper limit pressure when transitioning from the normal movement to the sudden expansion movement.

According to the above characteristic configuration, the moving direction in either or both of the horizontal direction and the vertical direction of the roller can be commanded by adjusting the tilting direction from the neutral position of the operation lever to the periphery thereof. Thus, when adjusting the tilt direction of the operation lever, the fluid pressure of the driving fluid to the lateral feed mechanism or the vertical feed mechanism can be commanded by adjusting the tilt amount. In other words, in addition to adjusting the moving direction of the roller in the horizontal direction and the vertical direction with one operating lever, the work speed of the roller and the work material by the roller according to the shape of the outer peripheral surface of the mold The pressing force pressed against the mold can be adjusted appropriately.
Then, when shifting from the normal movement to the sudden expansion movement, that is, when the roller moves from the slowly expanding outer peripheral surface portion to the outer peripheral surface portion, for example, the direction and amount of the operation lever are changed. Even if not, the rapid expansion movement upper limit pressure can be set smaller than the reference upper limit pressure by the upper limit pressure setting means.

  Therefore, it is possible to appropriately spin the workpiece while further facilitating the operation of moving the roller along the outer peripheral surface of the mold.

In addition to the first or second characteristic configuration described above, the third characteristic configuration of the method for operating the spinning device according to the present invention is as follows:
The control means stores in advance a manual operation mode for controlling the operations of the transverse feed mechanism and the longitudinal feed mechanism based on the operation state of the roller moving operation tool and the set state of the upper limit pressure setting means. The automatic operation mode for controlling the operations of the transverse feed mechanism and the longitudinal feed mechanism based on time-series control data is configured to be executable.

According to the above characteristic configuration, in the manual operation mode, when the operator manually operates the roller movement operation tool and the upper limit pressure setting means so as to move the roller along the outer peripheral surface of the mold, the operation state of the roller movement operation tool The operation of each of the lateral feed mechanism and the longitudinal feed mechanism can be controlled based on the setting state of the upper limit pressure setting means, for example, control data including the operation position data detected at that time is stored in time series by the control means. The so-called teaching process can be executed.
In the automatic operation mode, the operation of each of the horizontal feed mechanism and the vertical feed mechanism is controlled by the control means based on, for example, time-series control data stored during execution of the teaching process. The movement operation is automatically performed so as to move along the locus similar to the locus at.

That is, if the roller movement trajectory is stored in the control means in the manual operation mode, thereafter, the automatic operation mode is executed, whereby the roller is automatically moved along the same movement trajectory as in the manual operation mode. .
Therefore, it is possible to save labor in the spinning process.

A spinning device according to the present invention for achieving the above object includes a roller that presses a plate-shaped workpiece against a rotating mold and processes the workpiece into a shape along the outer peripheral surface of the mold,
A lateral feed mechanism for moving the roller in a lateral direction parallel to the rotational axis of the mold by the fluid pressure of the driving fluid;
A longitudinal feed mechanism that moves the roller in the longitudinal direction intersecting the rotational axis of the mold by the fluid pressure of the driving fluid;
A manually operated roller moving operation tool for commanding the moving direction and moving speed of the roller in the horizontal direction and the vertical direction, respectively;
Control means for controlling the operation of each of the transverse feed mechanism and the longitudinal feed mechanism based on the operation state of the roller moving operation tool,
The first characteristic configuration is provided with an upper limit pressure setting means for variably setting the upper limit pressure of the driving fluid supplied to the longitudinal feed mechanism,
During the sudden expansion movement in which the movement amount of the roller in the direction perpendicular to the rotation axis is larger than the reference movement amount while the control means moves the set movement amount in a direction parallel to the rotation axis of the mold. A sudden expansion movement upper limit pressure that is an upper limit pressure to be adopted is an upper limit pressure that is adopted during normal movement in which the movement amount of the roller in the vertical direction is equal to or less than the reference movement amount while the set movement amount moves in the parallel direction. It is the point which is comprised so that the action | operation of the said upper limit pressure setting means may be controlled so that it may set smaller than a reference | standard upper limit pressure.

  According to the above characteristic configuration, when the roller movement operation tool is operated to move the roller along the outer peripheral surface of the mold, the set movement amount in a direction parallel to the rotation axis of the mold. When the roller moves in a direction perpendicular to the rotational axis during the movement in a sudden expansion movement in which the movement amount is larger than the reference movement amount, the upper limit pressure of the driving fluid supplied to the vertical feed mechanism is set by the control means in the parallel direction. Of the upper limit pressure setting means so as to set the upper limit pressure of the sudden expansion movement which is smaller than the reference upper limit pressure employed in the normal movement in which the moving amount of the roller in the vertical direction is less than the reference movement amount. Operation is controlled.

That is, when the roller is operated to move the roller along the outer peripheral surface of the mold with the roller moving operation tool, the outer peripheral surface portion of the outer peripheral surface of the mold is rapidly expanded from the outer peripheral surface portion of the mold. When the roller moves, the upper limit pressure of the driving fluid supplied to the vertical feed mechanism is automatically set smaller than when the roller slowly spreads and moves on the outer peripheral surface portion.
Therefore, as described above in the first characteristic configuration in the operating method of the spinning processing apparatus, even when the roller moves from the slowly expanding outer peripheral surface portion to the rapidly expanding outer peripheral surface portion, the vertical movement by the roller moving operation tool is performed. Since it is possible to appropriately move the roller along the outer peripheral surface of the mold in the direction away from the rotation axis without changing the direction command state, it is possible to appropriately spin the workpiece. It can be done.
As a result, when the roller moves in a portion where the degree of spread in the direction perpendicular to the rotation axis is large on the outer peripheral surface of the mold, particularly when the outer peripheral surface portion where the degree of spread is small shifts to the large outer peripheral surface portion. Thus, a spinning device capable of appropriately spinning a workpiece can be provided.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described based on the drawings.
As shown in FIG. 1, the spinning processing apparatus includes a mold rotation driving unit D that rotationally drives the mold 1, and a roller 2 that presses a plate-shaped workpiece W against the rotating mold 1. The roller driving unit R is configured to move and drive in a horizontal direction (Z direction) parallel to the rotation axis P of the mold 1 and a vertical direction (X direction) intersecting the rotation axis P of the mold 1. Further, the spinning processing apparatus includes a control unit 3 (corresponding to a control unit) that controls the operation of the spinning processing apparatus, and an operation unit 4 that instructs the control unit 3 to perform various control commands. .
Then, the spinning processing apparatus moves from the tip E1 of the mold 1 toward the base end E2 along the outer peripheral surface in a state where the roller 2 is pressed against the outer peripheral surface of the mold 1 with the workpiece W interposed therebetween. By doing so, the workpiece W is spun (drawn) into a shape along the outer peripheral surface of the mold 1.

  As shown in FIG. 1, the mold rotation drive unit D includes a main shaft 5 that is rotationally driven by a motor (not shown), a mold 1 that is attached to the main shaft 5, and a workpiece W that is a tip of the mold 1. The tailstock 6 is configured to be pressed against and fixed to E1. And it is comprised so that the workpiece W may be rotated integrally with the shaping | molding die 1 in the state clamped by the shaping | molding die 1 and the tailstock 6. FIG.

As shown in FIGS. 1 and 2, the roller driving unit R includes a lateral feed mechanism Rz that moves the roller 2 in the lateral direction Z by the pressure of hydraulic oil (corresponding to fluid pressure) as a driving fluid, and hydraulic oil A vertical feed mechanism Rx that moves the roller 2 in the vertical direction X by pressure is provided.
As shown in FIG. 1, a lateral feed base 8 is provided on a base 7 so as to be movable along a lateral direction Z. On the lateral feed base 8, a longitudinal feed base 8 is movable along a vertical direction X. A direction feed base 9 is provided, and a roller support 10 on which a plurality of rollers 2 can be mounted side by side along the circumferential direction is rotatably provided on the vertical direction feed base 9.
The roller 2 itself is provided on the roller support 10 so as to be rotatable about the rotation axis Q.
And it is comprised so that the roller 2 to be used can be selected from the some roller 2 by rotating the roller support 10 like the arrow shown in FIG.

  As shown in FIG. 2, the lateral feed mechanism Rz includes a lateral feed hydraulic cylinder 11 that reciprocates the roller 2 along the lateral direction Z by reciprocating the lateral feed base 8 along the lateral direction Z. A transverse feed control valve 12 for controlling the operation of the transverse feed hydraulic cylinder 11 is provided. The lateral feed mechanism Rz includes a pump 14 that pressurizes and supplies hydraulic oil to the lateral feed hydraulic cylinder 11 through the oil passage 13 and a tank 15 that returns the hydraulic oil from the lateral feed hydraulic cylinder 11. ing.

The longitudinal feed mechanism Rx includes a longitudinal feed hydraulic cylinder 16 that reciprocates the roller 2 along the longitudinal direction X by reciprocating the longitudinal feed base 9 along the longitudinal direction X, and the longitudinal feed hydraulic cylinder. And a vertical feed control valve 17 for controlling the operation of 16. The vertical feed mechanism Rx includes a pump 19 that pressurizes and supplies hydraulic oil to the vertical feed hydraulic cylinder 16 through the oil passage 18, a tank 20 that returns the hydraulic oil from the vertical feed hydraulic cylinder 16, and an oil passage 18. And a relief valve 21 for setting the hydraulic pressure to a predetermined pressure.
Furthermore, two bypass oil passages 24 and 25 are connected to the oil passage 18. One bypass oil passage 24 is provided with a manual operation decompression means 26 for decompressing and adjusting the pressure of hydraulic oil supplied to the longitudinal feed hydraulic cylinder 16 in a manual operation mode described later. The other bypass oil passage 25 is provided with an automatic operation pressure reducing means 29 for adjusting the pressure of the hydraulic oil supplied to the longitudinal feed hydraulic cylinder 16 in an automatic operation mode to be described later.

  The manual operation pressure reducing means 26 is configured to reduce the pressure of the hydraulic oil supplied to the longitudinal feed hydraulic cylinder 16 by passing a part of the hydraulic oil through the bypass oil path 24. An on-off valve 27 that opens and closes and a pair of throttle valves 28 are provided. The automatic operation pressure reducing means 29 has the same configuration, and includes an on-off valve 30 that opens and closes the bypass oil passage 25 and a pair of throttle valves 31.

  The lateral feed control valve 12 and the longitudinal feed control valve 17 are each constituted by a direction switching valve composed of an electromagnetic servo valve. These servo valves change the flow direction of the hydraulic oil to switch the expansion / contraction of the lateral feed hydraulic cylinder 11 and the vertical feed hydraulic cylinder 16, and also adjust the excitation current value of the solenoid to adjust the flow rate of the hydraulic oil. By adjusting the pressure, the pressure generated by the horizontal feed hydraulic cylinder 11 and the vertical feed hydraulic cylinder 16, that is, the pressing force for pressing the roller 2 against the workpiece W can be adjusted. Incidentally, as the exciting current value of the solenoids of the lateral feed control valve 12 and the longitudinal feed control valve 17 increases, the pressure of the hydraulic oil supplied to the lateral feed hydraulic cylinder 11 and the longitudinal feed hydraulic cylinder 16 increases. The moving speed of the roller 2 is increased, and the pressing force for pressing the workpiece W by the roller 2 is also increased.

  As shown in FIG. 1, in this embodiment, the vertical direction X is inclined with respect to the direction orthogonal to the horizontal direction Z on the opposite side to the traveling direction of the roller 2 from the tip E1 to the base end E2 of the mold 1. (Inclination angle is 30 °, for example).

  Further, the roller drive unit R includes a lateral position detector 22 for detecting the position in the lateral direction Z of the lateral feed base 8, that is, the position in the lateral direction Z of the roller 2, and the longitudinal feed base 9. A vertical position detector 23 for detecting the position in the vertical direction X, that is, the position of the roller 2 in the vertical direction X is provided. These horizontal position detector 22 and vertical position detector 23 are linear scales configured to output pulse signals at predetermined pitches as the horizontal feed base 8 and vertical feed base 9 move. It is configured using an encoder.

  As shown in FIGS. 1 and 2, the operation unit 4 includes a manual operation switch 32 for selecting a manual operation mode, an automatic operation switch 33 for selecting an automatic operation mode, an operation start switch 34 for instructing an operation start, and A manually operated roller moving operation tool 35 for instructing the moving direction and moving speed in the horizontal direction Z and the vertical direction X of the roller 2 is provided.

In the manual operation mode, the operator (operator) operates the roller movement operation tool 35 and the pressure adjustment operation tool 36 so as to move the roller 2 along the outer peripheral surface of the mold 1 while observing the movement of the roller 2. It is an operation mode. And the teaching process can be executed during the execution of the manual operation mode. This teaching process is performed based on the operation state of the roller movement operation tool 35 and the setting state of the pressure adjustment operation tool 36. Specifically, the lateral feed mechanism Rz and the vertical feed mechanism Rx (specifically, the lateral feed control valve 12 and the longitudinal feed control tool 12). Control valve 17) This is a process of storing control data for controlling each operation in a storage unit (not shown) in the control unit 3 in time series. The operation unit 4 is also provided with a teaching end switch 37 for instructing the end of the teaching process.
The automatic operation mode is performed by the control unit 3 based on time-series control data obtained by teaching processing (control data stored in the storage unit in advance) and the transverse feed control valve 12 and the longitudinal feed control mode. This is an operation mode in which the control valve 17 and the like are controlled and the roller 2 is automatically moved and operated along a locus similar to the locus in the manual operation mode.
That is, the control unit 3 is configured to be able to execute the manual operation mode and the automatic operation mode. The control unit 3 is configured using a microcomputer.

  As shown in FIGS. 1 and 2, the roller moving operation tool 35 moves in one or both of the horizontal direction Z and the vertical direction X of the roller 2 based on the tilting direction from the neutral position to the periphery thereof. Is provided with an operation lever 35a capable of instructing. The lateral feed mechanism Rz or the longitudinal feed mechanism Rx (specifically, the lateral feed hydraulic cylinder 11 and the longitudinal feed hydraulic cylinder 16) is set in a state where the greater the fall amount is based on the tilt amount of the operation lever 35a. It is comprised so that the pressure of the hydraulic oil to may be commanded.

The roller movement operation tool 35 will be further described. The operation lever 35a of the roller movement operation tool 35 is constituted by a so-called joystick.
In other words, the operation lever 35a is provided so as to be tiltable in any direction of 360 ° around the neutral position, and a direction corresponding to the horizontal direction Z and a direction corresponding to the vertical direction X in a cross shape with the neutral position as the center. And are set. Then, based on the direction in which the operation lever 35a is tilted, the movement direction in the lateral direction Z is determined in a state in which the movement direction command in the lateral direction Z and the movement direction instruction in the longitudinal direction X are allowed to be performed simultaneously. It is configured to alternatively command and to alternatively command the moving direction in the vertical direction X.
Further, based on the tilting amount of the operation lever 35a in the direction corresponding to each of the horizontal direction Z and the vertical direction X, the lateral feed control valve 12 and the vertical feed control valve 17 are set so as to increase as the tilt amount increases. The excitation current value of each solenoid is commanded.

For example, when the operation lever 35a is tilted straight toward the “−X” side shown in FIG. 1, the roller 2 is moved along the vertical direction X in a direction approaching the rotational axis P (hereinafter referred to as moving forward). May be commanded). When the operation lever 35a is tilted straight toward the “−Z” side shown in FIG. 1, the roller 2 is moved along the lateral direction Z toward the proximal end of the mold 1 (hereinafter referred to as moving forward). Is). When the operation lever 35 a is tilted between the “−X” side and the “−Z” side shown in FIG. 1, the roller 2 can be moved forward along the vertical direction X and moved forward along the horizontal direction Z. Will be commanded.
Further, the roller moving operation tool 35 outputs a signal corresponding to the amount of tilt of the operation lever 35a toward the “−X” side, “+ X” side, “−Z” side, and “+ Z” side. It is configured.

  As shown in FIG. 3, the relationship between the collapse amount and the excitation current value in a state where the excitation current value increases as the tilt amount of the operation lever 35a increases (hereinafter sometimes referred to as a tilt amount / current value relationship). If the tilting amount of the operation lever 35a is the same, the excitation current value is set in a plurality of stages (for example, 10 stages) in different forms. Then, the controller 3 sets in advance a plurality of levels of collapse amount / current value relationships.

In the following description, for example, the 10-step collapse amount / current value relationship may be referred to as 1st, 2nd,..., 10th in order of increasing excitation current. The 9th,..., 5th,..., 1st-level tilt amount / current value relationship indicates that the hydraulic oil pressure supplied to the lateral feed hydraulic cylinder 11 and the longitudinal feed hydraulic cylinder 16 is 10 stages, respectively. It is set to be 90%,..., 50%,..., 10% in the collapse amount / current value relationship.
Further, the values related to the amount of collapse described in the present embodiment are examples, and can be appropriately changed.

As shown in FIGS. 1 and 2, the present invention is provided with an upper limit pressure setting means L for variably setting the upper limit pressure of the hydraulic oil supplied to the vertical feed mechanism Rx.
In this embodiment, the upper limit pressure setting means L is a manually operated pressure adjustment that commands the vertical feed control valve 17 and which one to use from a plurality of levels of collapse amount / current value relationship. The operation tool 36 is provided. Further, the upper limit pressure setting means L is a roller movement operating tool 35 for instructing the solenoid exciting current value of the longitudinal feed control valve 17 based on the tilt amount / current value relationship commanded by the pressure adjusting operating tool 36; A control unit 3 that adjusts the pressure of hydraulic oil supplied to the longitudinal feed hydraulic cylinder 16 by supplying an excitation current commanded by the roller moving operation tool 35 to the solenoid of the longitudinal feed control valve 17; Configured.
The pressure adjustment operation tool 36 is configured in a dial type and is provided in the operation unit 4, and is configured so as to alternatively command any one of a plurality of levels of tilt amount / current value depending on the rotational position of the dial. Yes.

  Then, the control unit 3 switches the hydraulic oil flow direction by the lateral feed control valve 12 or the longitudinal feed control valve 17 based on the direction in which the operation lever 35a of the roller moving operation tool 35 is tilted, and the lateral feed hydraulic pressure. The cylinder 11 and the vertical feed hydraulic cylinder 16 are moved out and out. Further, the control unit 3 controls the operation lever for the lateral feed control valve 12 based on a predetermined one relationship (for example, the relationship of the 10th stage) among the plurality of levels of the tilt amount / current value relationship. The excitation current according to the amount of tilting to either the “−Z” side or the “+ Z” side of is supplied. Further, the control unit 3 determines that the vertical feed control valve 17 is on the “−X” side of the operation lever based on the relationship commanded by the pressure adjustment operation tool 36 among the multiple-level tilt amount / current value relationships. Alternatively, an excitation current corresponding to the amount of tilt to either the “+ X” side is configured to flow.

The pressure in the oil passage 18 of the vertical feed mechanism Rx is a predetermined automatic operation pressure (for example, 35 kg / cm ² (3432 kPa)) when the relief valve 21 sets the excitation current value of the vertical feed control valve 17 to the maximum. It is set to become.
The manual operation pressure reducing means 26 is activated by opening the on-off valve 27. In this operating state, when the throttle valve 28 is in a state in which the exciting current value of the vertical feed control valve 17 is set to the maximum, the pressure of the hydraulic oil supplied to the vertical feed hydraulic cylinder 16 is, for example, The pressure is adjusted to be reduced to a manual operation pressure in the range of 3 to 7 kg / cm ² (294 to 686 kPa).
That is, in the manual operation mode in which the roller 2 is moved by the roller moving operation tool 35, when the automatic operation pressure is applied to the vertical feed hydraulic cylinder 16, the workpiece W is repelled due to repulsion or the molding die 1 is moved. Since the escape when the workpiece W is pushed in too much cannot be allowed, the manual operation pressure is applied to the longitudinal feed hydraulic cylinder 16.

The automatic operation decompression means 29 is activated by opening the on-off valve 30. In this operating state, the throttle valve 31 is adjusted to reduce the pressure of the hydraulic oil supplied to the longitudinal feed hydraulic cylinder 16 by, for example, about 1 kg / cm ² (98 kPa).
That is, if the automatic operation mode is continuously performed, the temperature of the mold 1 rises and the mold 1 expands, and the automatic operation pressure is applied to the longitudinal feed hydraulic cylinder 16 so that the roller The pressing force that presses 2 against the workpiece W increases, causing problems such as a reduction in the thickness of the workpiece W. Therefore, when the temperature of the mold 1 rises, the pressure applied to the longitudinal feed hydraulic cylinder 16 is lowered by operating the pressure reducing means 29 during automatic operation, thereby causing the thickness of the workpiece W to be reduced. It is comprised so that generation | occurrence | production of may be prevented.
And as shown in FIG. 1, the temperature detector 38 which detects the temperature of the shaping | molding die 1 is provided. The temperature sensor 38 a of the temperature detector 38 is provided at a predetermined location of the mold 1.

Next, an operation method in the manual operation mode of the spinning processing apparatus will be described.
The operator presses the manual operation switch 32 of the operation unit 4 to set the manual operation mode. When the manual operation mode is set in this way, the control unit 3 opens the on-off valve 27 of the manual operation decompression means 26 so that the manual operation decompression means 26 is activated. The pressure of the hydraulic oil supplied to 16 is adjusted to be lower than in the automatic operation mode.
Subsequently, the operator presses the operation start switch 34 to instruct the operation start and starts execution of the teaching process. The operator moves the roller 2 from the tip E1 while observing the shape of the outer peripheral surface of the mold 1 and the movement of the roller 2. When the roller moving operation tool 35 is operated so as to move along the outer peripheral surface of the mold 1 toward the end E2, and the roller 2 reaches the base end E2 of the mold 1, the teaching end switch 37 is pressed to perform teaching processing. Command termination.

  Then, in the manual operation mode in which the roller movement operation tool 35 is operated in this way, the movement amount of the roller 2 in the direction perpendicular to the rotation axis P of the mold 1 is larger than the reference movement amount by the upper limit pressure setting means L. The sudden expansion movement upper limit pressure, which is the upper limit pressure used during large sudden expansion movements, is set to be smaller than the reference upper limit pressure, which is the upper limit pressure employed during normal movement when the movement amount of the roller 2 in the vertical direction is equal to or less than the reference movement amount. And execute the spinning process.

Hereinafter, the operation method of the spinning processing apparatus will be described by taking as an example the case where the outer peripheral surface of the mold 1 has a shape as shown in FIG.
The outer peripheral surface of the mold 1 is a parallel outer peripheral surface portion S1 substantially parallel to the rotation axis P from the tip E1 to the base end E2 in the side view, and the traveling side of the roller 2 is the rotation axis of the mold 1 Slowly expanding outer peripheral surface portion S2 that expands in a direction perpendicular to P at an angle equal to or less than the reference inclination angle, and a rapid expansion in which the traveling side of roller 2 expands at an angle larger than the reference inclination angle in a direction perpendicular to rotation axis P of mold 1 It consists of an outer peripheral surface portion S3 and a parallel outer peripheral surface portion S4 substantially parallel to the rotation axis P.
4B shows the operation state of the operation lever 35a in the roller movement operation tool 35 corresponding to each of the outer peripheral surface portions S1, S2, S3, and S4 of the mold 1. FIG. FIG. 4C shows the operation state of the dial of the pressure adjusting operation tool 36 corresponding to each of the outer peripheral surface portions S1, S2, S3, and S4 of the mold 1.
Incidentally, the reference inclination angle is set to 45 °, for example, with respect to the rotational axis P of the mold 1.
That is, the time when the roller 2 slowly spreads and moves the outer peripheral surface portion S2 and the parallel outer peripheral surface portions S1 and S4 corresponds to the normal movement, and the time when the roller 2 rapidly expands and moves the outer peripheral surface portion S3 Equivalent to.

First, the dial of the pressure adjustment operation tool 36 is operated so as to set the tilt amount / current value relationship to 10 steps. Then, in order to move the roller 2 to the position corresponding to the tip E1 of the mold 1, the operation lever 35a of the roller moving operation tool 35 is actuated to the vertical feed hydraulic cylinder 16 by the amount of tilt to the “−X” side. The amount of tilting is such that the oil pressure reaches the maximum value, and the amount of tilting toward the “−Z” side is such that the hydraulic oil pressure to the lateral feed hydraulic cylinder 11 is approximately 30% of the maximum value. In the state, it is tilted between the “−X” side and the “−Z” side.
In this state, the pressure of the hydraulic oil supplied to the lateral feed hydraulic cylinder 11 is adjusted to about 30% of the maximum value, and the traveling speed of the roller 2 in the lateral direction Z becomes about 30% of the maximum speed. Adjusted.

When the roller 2 hits the workpiece W at the tip E1 of the mold 1, the roller 2 moves toward the base end E2 of the mold 1 along the parallel outer peripheral surface portion S1 of the outer peripheral surface of the mold 1.
While the roller 2 moves slowly from the parallel outer peripheral surface portion S1 to the outer peripheral surface portion S2, and further moves along the slowly expanding outer peripheral surface portion S2, the operation lever 35a of the roller moving operation device 35 and the pressure adjusting operation device 36 are moved. The operation state of the dial is not changed from when it passes through the parallel outer peripheral surface portion S1.
That is, the gently expanding outer peripheral surface portion S2 has a small degree of expansion in a direction perpendicular to the rotation axis P of the outer peripheral surface of the mold 1. Therefore, even if the hydraulic oil pressure supplied to the vertical feed hydraulic cylinder 16 is not reduced, the roller 2 is rotated by the propulsion force away from the rotational axis P that is generated by the lateral feed cylinder 11. It spreads slowly in the direction away from the axis P, and can be moved along the outer peripheral surface portion S2.

  Furthermore, when the roller 2 moves from the gradually expanding outer peripheral surface portion S2 of the outer peripheral surface of the mold 1 to the rapidly expanding outer peripheral surface portion S3, the direction in which the operation lever 35a of the roller moving operation tool 35 is tilted is “−X” side. While maintaining the “−Z” side, the dial of the pressure adjusting operation tool 36 is operated so as to set the tilt amount / current value relationship to five steps. In this case, the tilting amount of the operation lever 35a is such that the "-X" side remains at the tilting amount so that the hydraulic oil pressure to the vertical feed hydraulic cylinder 16 becomes the maximum value, and the "-Z" side Is made slightly smaller to slow down the traveling speed of the roller 2.

That is, the rapidly expanding outer peripheral surface portion S3 has a large degree of expansion in the direction perpendicular to the rotation axis P of the outer peripheral surface of the mold 1. Therefore, the pressure of the hydraulic oil supplied to the longitudinal feed hydraulic cylinder 16 is gradually widened by operating the dial of the pressure adjusting operation tool 36 so that the tilt amount / current value relationship is set to five stages, for example. S2 is reduced to about 50% of the pressure when moving.
Then, the propulsive force in the direction of moving away from the rotational axis P expressed by the lateral feed hydraulic cylinder 11 rather than the propulsive force expressed by the vertical feed hydraulic cylinder 16 toward the side approaching the rotational axis P. Becomes larger. Accordingly, the roller 2 is rapidly expanded in the direction away from the rotational axis P and moved along the outer peripheral surface portion S3 while maintaining the direction in which the operation lever 35a is tilted between the “−X” side and the “−Z” side. Can be made.
In short, when the upper limit pressure setting means L shifts from the normal movement to the sudden expansion movement, the sudden expansion movement upper limit pressure is set smaller than the reference upper limit pressure in a state where the tilting direction of the operation lever 35a does not change. It will be configured.

Further, when the roller 2 is suddenly expanded on the outer peripheral surface of the mold 1 and moved from the outer peripheral surface portion S3 to the parallel outer peripheral surface portion S4, the direction of tilting the operation lever 35a of the roller moving operation tool 35 is “−X” side and “ The dial of the pressure adjusting operation tool 36 is operated so as to set the tilt amount / current value relationship to 10 steps while maintaining the position between the “−Z” side. In this case, the tilting amount of the operation lever 35a is such that the "-X" side remains at the tilting amount so that the hydraulic oil pressure to the vertical feed hydraulic cylinder 16 becomes the maximum value, and the "-Z" side Is increased somewhat to increase the traveling speed of the roller 2.
Then, the roller 2 moves toward the base end E2 of the mold 1 in a state along the parallel outer peripheral surface portion S4 of the outer peripheral surface of the mold 1, and reaches the base end E2.

  The parallel outer peripheral surface portions S1, S4, the slowly expanding outer peripheral surface portion S2, and the rapidly expanding outer peripheral surface portion S3 on the outer peripheral surface of the mold 1 are such that the operator looks at the shape of the outer peripheral surface of the mold 1 during operation. The outer peripheral surface of the mold 1 may be recognized by looking at an angle at which the outer peripheral surface expands in a direction away from the rotation axis P. Alternatively, it may be determined in advance based on the shape data of the mold 1 (for example, CAD data).

  The form in which the outer peripheral surface of the mold 1 expands in the direction away from the rotational axis P is not limited to a linear form in the side view of the mold 1, but is closer to the rotational axis P. In addition, a curved shape that bulges away from the rotation axis P is also included.

  The controller 3 controls the lateral feed control valve 12 and the longitudinal feed from the time when the operation start switch 34 is pressed and the start of operation is commanded to the time when the teaching end switch 37 is pressed and the end of the teaching process is commanded. The control data including the direction switching data and the excitation current value data of each control valve 17 and the position data from the horizontal position detector 22 and the vertical position detector 23 is read every predetermined sampling time. Store in the storage unit in time series.

Next, the control operation of the control unit 3 in the automatic operation mode will be described.
When the operation start switch 34 is pressed while the automatic operation switch 33 of the operation unit 4 is pressed and the automatic operation mode is set, the control unit 3 stores the time-series control stored during the execution of the manual operation mode. Based on the data, the operation of the transverse feed control valve 12 and the longitudinal feed control valve 17 is controlled. Therefore, in this automatic operation mode, the roller 2 is automatically moved so as to move along a locus similar to that in the manual operation mode.

Further, when the temperature of the mold 1 detected by the temperature detector 38 during the execution of the automatic operation mode becomes equal to or higher than a predetermined set pressure for pressure reduction, the control unit 3 turns on the opening / closing valve 30 of the pressure reducing means 29 during automatic operation. The valve is opened and the pressure reducing means 29 is activated during automatic operation. Then, since the pressure of the hydraulic oil supplied to the vertical feed hydraulic cylinder 16 is reduced, the occurrence of problems such as a reduction in the thickness of the workpiece W due to the expansion of the mold 1 is prevented. be able to.
Note that the automatic operation may be performed with the pressure reducing means 29 in the automatic operation in an activated state without detecting the temperature of the mold 1.

[Second Embodiment]
Hereinafter, a second embodiment of the present invention will be described based on the drawings.
In the second embodiment, the configuration of the upper limit pressure setting means L and another embodiment of the control operation of the control unit 3 will be described. The overall configuration of the spinning device is the same as that of the first embodiment. Therefore, mainly the configuration of the upper limit pressure setting means L and the control operation of the control unit 3 will be described.

As shown in FIG. 5, similarly to the first embodiment described above, an upper limit pressure setting unit L that variably sets the upper limit pressure of the driving fluid supplied to the vertical feed mechanism Rx is provided.
However, the configuration of the upper limit pressure setting means L is different from that of the first embodiment, and in the second embodiment, the upper limit pressure setting means L is configured by a longitudinal feed control valve 17.

Furthermore, instead of the pressure adjustment operation tool 36 provided in the first embodiment, the operation unit 4 is provided with a rapid expansion position input for inputting the position information of the outer peripheral surface portion S3 that rapidly expands on the outer peripheral surface of the mold 1. A portion 40 is provided.
The rapid spread position input unit 40 is constituted by, for example, a numeric keypad, and has coordinates and a rotational axis P in a direction parallel to the rotational axis P of the mold 1 at each of the start position and the end position of the rapid spread outer peripheral surface portion S3. The coordinates in the direction perpendicular to the direction are input manually.

Hereinafter, the control operation of the control unit 3 will be described.
During the execution of the manual operation mode, the control unit 3 detects that the roller 2 is in the mold 1 on the basis of the input information from the rapid spread position input unit 40 and the detection information from the horizontal position detector 22 and the vertical position detector 23. It is configured so as to determine whether or not the outer peripheral surface is rapidly expanded and passes through the outer peripheral surface portion S3.
Then, the control unit 3 causes the hydraulic oil flow direction by the lateral feed control valve 12 and the vertical feed control valve 17 based on the direction in which the operation lever 35a of the roller moving operation tool 35 falls during execution of the manual operation mode. Are switched and the lateral feed hydraulic cylinder 11 and the longitudinal feed hydraulic cylinder 16 are moved out and out.
In addition, during the execution of the manual operation mode, the control unit 3 performs the operation of the operation lever on the “−Z” side or the “+ Z” side of the lateral feed control valve 12 based on the tilting amount / current value relationship of the 10th stage. An excitation current corresponding to the amount of tilting to either side is configured to flow. Further, the control unit 3 determines that the longitudinal feed control valve 17 is rapidly expanded and does not pass through the outer peripheral surface portion S3, based on the 10th-stage tilt amount / current value relationship. Thus, while it is determined that the roller 2 has expanded rapidly and has passed through the outer peripheral surface portion S3, the “−X” side of the operation lever or “ An excitation current corresponding to the amount of tilt to either side of the “+ X” side is configured to flow.

  That is, while the control unit 3 moves the set movement amount in a direction parallel to the rotation axis P of the mold 1, the movement amount of the roller 2 in the direction perpendicular to the rotation axis P is larger than the reference movement amount. The sudden enlargement movement upper limit pressure, which is the upper limit pressure used during enlargement movement, is the upper limit pressure adopted during normal movement when the movement amount of the roller 2 in the vertical direction is less than or equal to the reference movement amount while moving the set movement amount in the parallel direction. The operation of the upper limit pressure setting means L is controlled so as to be set smaller than the reference upper limit pressure.

  Also in the second embodiment, similarly to the first embodiment, the control unit 3 is configured to be able to execute the manual operation mode and the automatic operation mode.

[Another embodiment]
Next, another embodiment will be described.
(A) In each of the first and second embodiments described above, the outer periphery of the mold 1 is used to reduce the pressure of the hydraulic oil supplied to the vertical feed hydraulic cylinder 16 during a sudden expansion movement than during a normal movement. An example was given of a case where the surface is uniformly reduced regardless of the size of the spread angle of the surface. Instead of this, the pressure of the hydraulic oil supplied to the longitudinal feed hydraulic cylinder 16 is reduced in such a form that the smaller the expansion angle, the smaller the expansion angle of the outer peripheral surface of the mold 1. May be.
That is, the sudden expansion movement upper limit pressure is moved according to the movement amount of the roller 2 in the direction perpendicular to the rotation axis P while the set movement amount moves in the direction parallel to the rotation axis P of the mold 1. The larger the amount, the smaller the setting.

(B) In the first embodiment, the manually operated pressure adjusting operation tool 36 for setting the upper limit pressure of the hydraulic oil supplied to the vertical feed hydraulic cylinder 16 is provided. A manually operated lateral feed pressure adjusting operation tool for setting the upper limit pressure of the hydraulic oil supplied to the hydraulic cylinder 11 may be provided.
In this case, in addition to the pressure adjustment operation tool 36 provided in the first embodiment, a manually operated lateral feed for alternatively instructing which one to use from a plurality of levels of collapse amount / current value relationship. A pressure adjustment operation tool is provided.
Then, the lateral feed pressure adjustment operating tool is determined based on the tilt amount / current value relationship commanded by the lateral feed control valve 12, the lateral feed pressure adjustment operating tool, and the lateral feed pressure adjustment operating tool. The roller movement operation tool 35 for instructing the excitation current value of the solenoid of the lateral feed control valve 12 and the excitation current commanded by the roller movement operation tool 35 are supplied to the solenoid of the lateral feed control valve 12 to And a control unit 3 that adjusts the pressure of the hydraulic oil supplied to the feed hydraulic cylinder 11.
In the second embodiment, in addition to the upper limit pressure setting means L that variably sets the upper limit pressure of the drive fluid supplied to the vertical feed mechanism Rx, the upper limit pressure of the drive fluid supplied to the lateral feed mechanism Rz is set. You may provide the upper limit pressure setting means for the transverse feed to variably set. Then, the control unit 3 controls the operation of the upper limit pressure setting means for lateral feed so that the sudden upper limit movement upper limit pressure adopted during the sudden enlargement movement is set smaller than the reference upper limit pressure adopted during the normal movement. Configure.

(C) In the second embodiment, the control unit 3 causes the roller 2 to move the roller 2 based on the input information from the rapid spread position input unit 40 and the detection information from the horizontal position detector 22 and the vertical position detector 23. Although it has been determined whether or not the outer peripheral surface of the mold 1 has passed through the rapidly expanding outer peripheral surface portion, the present invention is not limited to this configuration.
For example, a shape data input unit for inputting shape data (for example, CAD data) of the mold 1 is provided, and the input information of the shape data input unit and the horizontal position detector 22 and the vertical position detector 23 are respectively set. You may employ | adopt the structure which discriminate | determines based on detection information.
Alternatively, it is possible to adopt a configuration in which the gradient of the outer peripheral surface of the mold 1 is obtained based on the detection information of each of the lateral position detector 22 and the longitudinal position detector 23 and is determined based on the obtained gradient. it can.

(D) In each of the first and second embodiments described above, the roller moving operation tool is configured so as to instruct each of the moving direction and moving speed in the horizontal direction Z and the vertical direction X by one operating lever 35a. 35 was constructed. Instead, an operation lever corresponding to the horizontal direction Z and an operation lever corresponding to the vertical direction X are provided separately, and the movement direction and movement speed in the horizontal direction Z and the vertical direction X are determined by these separate operation levers. The moving direction and the moving speed may be commanded separately.

(E) Since the strength of the workpiece W varies depending on the type (for example, iron, aluminum, etc.) and the thickness of the workpiece W, pressure is applied when the workpiece W is drawn in the manual operation mode. The pressure of the hydraulic oil supplied to the vertical feed hydraulic cylinder 16 may be adjusted by the adjustment operation tool 36 so as to increase as the strength of the workpiece W increases.

(F) The manual operation decompression means 26 is provided in a plurality of systems in such a manner that the pressure to be decompressed is varied, and the manual operation decompression means 26 to be activated is selected according to the strength of the workpiece W. It may be configured.

(G) In the first embodiment, when the roller 2 spreads slowly from the outer peripheral surface portion S2 to the sharply expanded outer peripheral surface portion S3, and when the roller 2 moves from the rapidly expanded outer peripheral surface portion S3 to the parallel outer peripheral surface portion S4. The amount of tilting of the operation lever 35a toward the “−Z” side is changed, but it may not be changed.

(H) In the first embodiment described above, the tilt / current value relationship is adjusted by the pressure adjustment operation tool 36 in 10 steps, but it may be configured to be adjusted to a stepless proportional type (linear type).

  As described above, when the roller moves on the outer peripheral surface of the mold that has a large degree of spread in the direction perpendicular to the rotation axis, the outer peripheral surface portion that has a low degree of spread moves, in particular, to a large outer peripheral surface portion. Even when doing so, it is possible to provide a method of operating a spinning processing apparatus and a spinning processing apparatus capable of appropriately spinning a workpiece.

The figure which shows schematic structure of the spinning processing apparatus which concerns on 1st Embodiment. The figure which shows the structure of the horizontal feed mechanism and vertical feed mechanism of the spinning processing apparatus which concerns on 1st Embodiment. Diagram showing the relationship between the tilting amount of the control lever and the excitation current value The figure explaining the operating method of the spinning processing apparatus which concerns on 1st Embodiment. The figure which shows the structure of the horizontal feed mechanism and vertical feed mechanism of the spinning processing apparatus which concerns on 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mold 2 Roller 3 Control means 35 Roller movement operation tool 35a Operation lever L Upper limit pressure setting means P Rotating shaft center Rx Vertical feed mechanism Rz Horizontal feed mechanism W Work material

Claims (4)

A roller that presses a plate-shaped workpiece against a rotating mold and processes the workpiece into a shape along the outer peripheral surface of the mold;
A lateral feed mechanism for moving the roller in a lateral direction parallel to the rotational axis of the mold by the fluid pressure of the driving fluid;
A longitudinal feed mechanism that moves the roller in the longitudinal direction intersecting the rotational axis of the mold by the fluid pressure of the driving fluid;
A manually operated roller moving operation tool for commanding the moving direction and moving speed of the roller in the horizontal direction and the vertical direction, respectively;
An operation method of a spinning processing apparatus provided with a control means for controlling the operation of each of the transverse feed mechanism and the longitudinal feed mechanism based on an operation state of the roller moving operation tool,
The spinning processing device is provided with an upper limit pressure setting means for variably setting the upper limit pressure of the driving fluid supplied to the longitudinal feed mechanism,
Due to the upper limit pressure setting means, the moving amount of the roller in the direction perpendicular to the rotation axis is larger than the reference movement amount while moving the set movement amount in a direction parallel to the rotation axis of the mold. A sudden expansion movement upper limit pressure that is an upper limit pressure that is adopted during movement is an upper limit pressure that is adopted during normal movement in which the movement amount of the roller in the vertical direction is equal to or less than the reference movement amount while the set movement amount is moved in the parallel direction. An operation method of a spinning processing apparatus for performing spinning processing by setting the pressure lower than a reference upper limit pressure. The roller movement operation tool includes an operation lever capable of instructing a movement direction in one or both of the horizontal direction and the vertical direction of the roller based on a tilting direction from a neutral position to the periphery thereof. , Configured to command the fluid pressure of the driving fluid to the lateral feed mechanism or the vertical feed mechanism based on the amount of tilt of the operation lever,
The said upper limit pressure setting means is comprised so that the said sudden expansion movement upper limit pressure may be set smaller than the said reference | standard upper limit pressure when it transfers at the time of the said sudden expansion movement from the said normal movement. Operation method of spinning processing apparatus.   The control means stores in advance a manual operation mode for controlling the operations of the transverse feed mechanism and the longitudinal feed mechanism based on the operation state of the roller moving operation tool and the set state of the upper limit pressure setting means. The operating method of the spinning processing apparatus according to claim 1 or 2, wherein an automatic operation mode for controlling the operation of each of the transverse feed mechanism and the longitudinal feed mechanism is executable based on time-series control data. . A roller that presses a plate-shaped workpiece against a rotating mold and processes the workpiece into a shape along the outer peripheral surface of the mold;
A lateral feed mechanism for moving the roller in a lateral direction parallel to the rotational axis of the mold by the fluid pressure of the driving fluid;
A longitudinal feed mechanism that moves the roller in the longitudinal direction intersecting the rotational axis of the mold by the fluid pressure of the driving fluid;
A manually operated roller moving operation tool for commanding the moving direction and moving speed of the roller in the horizontal direction and the vertical direction, respectively;
A spinning processing apparatus provided with control means for controlling the operation of each of the transverse feed mechanism and the longitudinal feed mechanism based on the operation state of the roller moving operation tool,
An upper limit pressure setting means for variably setting the upper limit pressure of the driving fluid supplied to the vertical feed mechanism is provided;
During the sudden expansion movement in which the movement amount of the roller in the direction perpendicular to the rotation axis is larger than the reference movement amount while the control means moves the set movement amount in a direction parallel to the rotation axis of the mold. A sudden expansion movement upper limit pressure that is an upper limit pressure to be adopted is an upper limit pressure that is adopted during normal movement in which the movement amount of the roller in the vertical direction is equal to or less than the reference movement amount while the set movement amount is moved in the parallel direction. A spinning processing apparatus configured to control the operation of the upper limit pressure setting means so as to be set smaller than a reference upper limit pressure.

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