JP5829670B2 - Bending clamp, processing unit and processing equipment - Google Patents

Description

  The present invention relates to a clamp, a unit and an apparatus for bending a rod-shaped member such as a metal pipe and a metal tube.

  Patent Document 1 describes that a pipe bender that has a simplified configuration of a bending die and a clamp die and is smaller than the conventional one is provided. In the pipe bender of Patent Document 1, the bending mold supported on the upper part of the rotating shaft is configured by a split mold that can be separated in the axial direction, and a clamp mold half is formed integrally with each of these split molds. . The pipe material to be bent is sent between the split mold and the clamp mold, and is held by the clamp mold by combining the split molds. Thereafter, the bending die is rotated together with the rotating shaft, and the bending die is bent along the guide of the concave groove formed on the outer periphery of the bending die.

  Patent Document 2 describes providing a pipe bending unit of a pipe bending apparatus that is compact and easy to control. The processing unit of Patent Document 2 is a pipe bending apparatus provided with a bending roll, a clamp that fixes the pipe to the bending roll, and a pressure that moves along the bending roll while pressing the pipe against the bending roll to bend the pipe. In the pipe bending unit, the clamp is supported so as to be able to contact and separate with respect to the bending roll, and a fixing plate having a pressure cam for determining the movement trajectory of the pressure is installed, and the pressure is fixed to the bending roll. A pipe bend characterized in that a rotating plate having a clamp cam for moving the clamp is disposed, and the clamp and the pressure are operated by the cam. This is a pipe bending unit of the processing apparatus.

Japanese Patent Laid-Open No. 11-138215 JP 2003-305518 A

  There is a demand for an apparatus that can process rod-like members such as pipes and tubes more flexibly and efficiently.

  According to one aspect of the present invention, a pair of upper and lower first split mold portions including a first bending groove including an arc-shaped portion and a pair of upper and lower first holding a rod-shaped member inserted into the first bending groove. And a pair of upper and lower first clamp portions protruding in the circumferential direction of the first bending groove from each of the upper and lower pair of first split mold portions. Each of the pair of upper and lower first clamp portions intersects in an X shape and is connected to the first bending groove so as to extend in the tangential direction of the first bending groove and the second clamping groove. Including grooves.

  The bending clamp includes an upper and lower split mold integrated with the clamp, and the first clamp portion is provided at one location on the outer periphery of the pair of upper and lower split mold portions, and is further provided in an X shape on the first clamp portion. The first clamp groove and the second clamp groove respectively correspond to the clamp grooves when the rod-shaped member is bent in both the left and right directions. Therefore, one bending type clamp corresponds to left bending and right bending, and is a bending type clamp common to left and right bendings. For this reason, by adopting this bending type clamp, it is possible to provide a processing unit and a processing apparatus for processing a rod-shaped member such as a pipe and a tube more flexibly and efficiently.

  The bending groove may be a circular arc formed at a predetermined angle according to the processing range, or may be a circular (ring-shaped) groove in which the circular arc is connected to a ring (circular). An example of the shape of the first clamp part is a trapezoidal protrusion, and a first bending groove for left bending connected to the bending radius of the first bending groove with a first bending groove and a second bending right part Two clamp grooves with the clamp groove can be arranged symmetrically. One of the first and second clamping grooves is clamped by opening and closing up and down at a rotational position that matches the rod-like member to be processed, for example, the axis of the pipe. By adopting this bending type clamp, it is possible to provide a processing apparatus that can cope with bending of two patterns of left and right pull bending, two patterns of left and right push bending, or four patterns of left and right pull bending with a pair of upper and lower bending molds. .

  The bending mold clamp is a pair of upper and lower second clamps that hold a pair of upper and lower second split mold portions including a second bending groove including an arcuate portion and a rod-shaped member inserted into the second bending groove. And a pair of upper and lower second clamp portions protruding in the circumferential direction of the second bending groove from each of the upper and lower pair of second split mold portions. Each of the pair of upper and lower second clamp parts intersects in an X shape and is connected to the second bending groove so as to extend in the tangential direction of the second bending groove and the fourth clamping groove. It is desirable that the lower mold of the first split mold part and the upper mold of the second split mold part are integrally formed, including a groove. It is possible to provide a left and right bending type clamp capable of performing left and right bending processes with different curvature radii by one. It is also possible to perform left and right bending of rod-shaped members having different diameters with a single bending die clamp. It is possible to provide a left and right bending-type clamp including a third bending groove, a fourth bending groove, or more bending grooves in the same manner as the second bending groove.

  One of the different forms of the present invention is that the bending mold clamp, the first drive unit that rotates the bending mold clamp around the first axis, and the rod-shaped member in the first bending groove of the bending mold clamp. , A holding groove that is held from the outer peripheral side of the first bending groove, and includes a pressure roller including a holding groove including an arcuate portion, and the pressure roller is attached to the first shaft independently of the first drive unit. A machining unit having a second drive unit that rotates about the center. The holding groove may be a circular arc formed at a predetermined angle according to the processing range, or may be a circular (ring-shaped) groove in which the circular arc is connected to a ring (circular).

  By controlling the pressure roller with a second drive unit that is independent of the first drive unit that drives the bending clamp, the relative position, rotation direction, and rotation of the first clamp unit and the pressure roller are controlled. Control is possible including necessity. Further, the bending clamp is commonly used for right and left bending. Therefore, the bending start position, the left and right bending directions, and the pull bending can be selectively performed for each bending portion of the rod-shaped member. Further, it is possible to provide a processing unit and a processing apparatus that enable mixed bending of left and right pulling with a simple structure of a pair of bending type clamps and a pressure roller and a small bending interference area.

  It is desirable that the processing unit has a control unit including a function of controlling the first drive unit and the second drive unit. The control unit controls the first drive unit and the second drive unit to rotate the bending clamp with respect to the pressure roller in the first direction around the first axis, and the pressure. A second mode in which the bending clamp is rotated in the second direction around the first axis with respect to the roller, and a pressure roller is rotated in the first direction around the first axis with respect to the bending mold clamp. It is desirable to include a third mode for rotating the pressure roller in a second direction around the first axis with respect to the bending clamp.

  The first mode is either left or right, for example, left-hand bending, the second mode is right-hand bending, the third mode is left-hand bending, and the fourth mode is right-handed. Bending is performed.

  It is desirable that the processing unit has an auxiliary pressure that holds the rod-like member at a contact point different from the contact point between the holding groove and the rod-like member in the holding groove of the pressure roller. An example of the auxiliary pressure includes a U-shaped or C-shaped portion inserted into the holding groove. The pressure roller is also used for pulling and pushing, but by supporting the rod-like member at multiple points using an auxiliary pressure, the bending reaction force of the rod-like member during the push-bending is shared with the pressure roller. And can bend with higher accuracy. It is desirable that the surface contact portion of the auxiliary pressure has a shape that is bilaterally symmetric at an angle that is in contact with the outer surface of a rod-like member such as a pipe in parallel when bending in the left and right directions.

  The processing unit further moves in conjunction with a third drive unit that moves up and down at least one of the pair of upper and lower first split mold parts of the bending mold clamp and at least one of the pair of upper and lower first split mold parts. It is desirable to have a link unit that places the pressure roller adjacent to the bending mold clamp when the pair of upper and lower first split mold portions is closed and holds the rod-shaped member with the bending mold clamp and the pressure roller. . The third drive unit moves the pair of upper and lower first split mold parts of the bending mold clamp and the pressure roller at the same time, and grips the rod-shaped member with the bending mold clamp and the pressure roller, or holds the rod-shaped member with the bending mold clamp and the pressure. Or can be released from the roller. Therefore, it is possible to provide a small and energy-saving three-way opening / closing structure in which the vertically split mold and the pressure roller are moved by a drive unit such as a single motor.

  The link unit moves up and down in conjunction with at least one of the pair of upper and lower first split mold parts, and moves while contacting the peripheral surface of the skirt-shaped cylindrical cam, and the skirt-shaped cylindrical cam moves up and down. It is desirable to include a cam follower that moves the pressure roller so as to open and close between the bending die clamp and the pressure roller in conjunction with the opening and closing of the pair of upper and lower first split mold portions. When the pair of upper and lower first split mold portions are closed when the skirt-shaped cylindrical cam moves upward, the skirt-shaped cylindrical cam narrowed in the direction of the pair of upper and lower first split mold portions is used. Since the bending reaction force of the pressure roller can be received by the skirt-shaped cylindrical cam, the driving means and energy for maintaining the pressure roller in the mold clamping state can be omitted.

  One of the different aspects of the present invention is a processing apparatus having the above processing unit, a first support unit that supports the processing unit, and a second support unit that supports the rod-shaped member. The first support unit moves the processing unit so that the unprocessed portions of the bar-shaped member supported by the second support unit are on the first side and the second side (for example, left and right) of the bending clamp. Includes units. With the moving unit, when bending right when viewed from above the bending mold clamp, the rod-shaped member can be set on the left side when viewed from above, and when bending left, the rod-shaped member can be set on the right side of the bending mold clamp. .

  The processing apparatus includes a relative angle between the processing unit supported by the first support unit and the rod-shaped member supported by the second support unit, and the relative relationship between the first support unit and the second support unit. It is desirable to have a machining control unit that controls the distance. By this processing apparatus, mixed bending of both left and right direction bending and pulling type bending can be performed based on processing data of feed, twist, and bending for each bending portion. The pipe feed for the arc length of the bending can be sent in synchronism with the bending rotation at the time of bending, and can be sent before the bending process in addition to the feeding for the straight pipe length between the bending points at the time of push bending.

  In addition, with this processing device, by the left and right pulling bending with less bending interference by a pair of clamp integrated bending mold (bending mold clamp) and pressure (pressure roller), and balanced opening and closing around the pipe shaft of the vertical split type, It is possible to provide a high-speed pipe bending apparatus capable of feeding, twisting, and bending back of a pipe shaft with a minimum clamp opening / closing stroke.

  Still another embodiment of the present invention is a processing method using a processing apparatus including a bending die clamp and a pressure roller. The processing method includes processing in a first mode in which a bending mold clamp is rotated in a first direction around a first axis with respect to the pressure roller, and the bending mold clamp is applied to the pressure roller with respect to the first axis. Processing in the second mode that rotates in the second direction around the center, processing in the third mode in which the pressure roller is rotated in the first direction around the first axis with respect to the bending mold clamp, and the bending die Machining the bar-like member into a shape including the fourth mode of rotating the pressure roller with respect to the clamp in the second direction around the first axis.

The front view which shows the outline | summary of a processing apparatus. The side view which shows the outline | summary of a processing apparatus. The figure which shows the outline | summary of a processing unit. Sectional drawing which shows schematic structure of a processing unit. It is a figure which shows the mode of opening and closing of an up-and-down type | mold and a pressure roller, FIG. 5 (a) is a figure which shows a mold open state, FIG.5 (b) is a figure which shows a mold closed state. FIGS. 6A and 6B are diagrams illustrating an outline of the bending die clamp, FIG. 6A is a plan view enlarged from the bending die clamp as viewed from above, and FIG. 6B is a diagram showing a workpiece held by the first clamping groove. The figure which looked at the state from the direction of the 1st clamp groove, FIG.6 (c) is the figure which looked at the state which hold | gripped the workpiece | work by the 2nd clamp groove from the direction of the 2nd clamp groove. FIG. 7A is a plan view, FIG. 7B is a side view seen from the extending direction of the first clamp groove, and FIG. 7C is a second view. The side view seen from the extension direction of the clamp groove of. It is a top view which shows the example of the bending process by a processing unit, Fig.8 (a) is a figure which shows left-handed bending, FIG.8 (b) is a figure which shows right-handed bending, FIG.8 (c) is left-handed bending. FIG. 8D is a diagram showing right-handed bending. The flowchart which shows the process in which a workpiece | work is processed with a processing apparatus. The side view which shows a different bending type clamp. The side view which shows the state which the bending type clamp shown in FIG. 10 opened up and down. The top view which shows the structure of the lower mold | type of the bending mold clamp shown in FIG. It is a figure which shows the structure of the middle type | mold of the bending type clamp shown in FIG. 10, (a) is a top view, FIG.13 (b) is a side view seen from the extension direction of the 1st clamp groove | channel, 13 (c). These are the side views seen from the extension direction of the 2nd clamp groove. It is a figure which shows the outline of the processing unit provided with the auxiliary pressure, FIG.14 (a) is the top view seen from upper direction centering on a bending type clamp, FIG.14 (b) is a side view which shows the state which hold | gripped the workpiece | work. It is a figure explaining the structure of an auxiliary pressure, Fig.15 (a) is a top view, FIG.15 (b) is the side view seen from the direction of the bending type clamp, FIG.15 (c) was seen from the bending process axial direction. Side view.

  FIG. 1 is a front view showing an outline of a processing apparatus for bending a rod-shaped member. An example of a rod-shaped member to be processed (work) is a pipe. The processing apparatus 1 includes a gantry 2, a workpiece support unit 5 that supports a pipe that is a workpiece W in the horizontal direction, a machining unit 10 that bends the workpiece W, and a switching unit that supports the machining unit 10 with respect to the gantry 2. 6 and a control unit 9. The control unit 9 includes a function for controlling the workpiece support unit 5, the machining unit 10, and the switching unit 6. The workpiece W may be a pipe, a tube, or another rod-like member.

  The workpiece support unit 5 includes a holder (clamp) 5a that grips the workpiece W in the horizontal direction, a motor 5b that rotates the holder 5a about the longitudinal axis (center axis) of the workpiece W, and the workpiece support unit 5. And a moving unit 5c that controls the distance to the processing unit 10 by moving the frame 2 on the gantry 2. The control unit 9 controls the motor 5b and the moving unit 5c of the workpiece support unit 5 to control the relative angle between the machining unit 10 and the workpiece W and the distance between the machining unit 10 and the workpiece support unit 5. A position control function (processing position control unit) 9a is included. The relative angle between the machining unit 10 and the workpiece W and the distance between the machining unit 10 and the workpiece support unit 5 may be controlled by changing the position of the machining unit 10 or changing the angle.

  The control unit 9 further includes a bending control unit 9b that controls the processing unit 10 and the switching unit 6 to control the bending direction of the workpiece W and the bending method (pull bending and push bending). The bending control unit 9b includes a mode 1 (M1) for performing left-hand bending, a mode 2 (M2) for performing right-hand bending, a mode 3 (M3) for performing left-hand bending, and a right-hand bending. Including mode 4 (M4).

  The switching unit 6 that supports the processing unit 10 with respect to the gantry 2 switches the positional relationship between the processing unit 10 and the workpiece W between the left bending and the right bending by moving the processing unit 10. The switching unit 6 of this example temporarily moves the machining unit 10 downward relative to the workpiece W to release the workpiece W from the machining unit 10, and moves the machining unit 10 upward to change the posture of the workpiece W. Can be gripped. The switching unit 6 includes a cam link 6a that controls the vertical position of the machining unit 10 and an angle with respect to the workpiece W, and a motor 6b that drives the cam link 6a.

  FIG. 2 shows a state in which the processing apparatus 1 is viewed from the processing unit 10 side. The processing unit 10 is attached to the gantry 2 such that the bending axis (first axis) 11 is inclined with respect to the vertical direction. It is necessary to reverse the inclination direction of the bending shaft 11 between the left bending and the right bending as described later. Therefore, as indicated by the alternate long and short dash line 6x, the switching unit 6 raises the machining unit 10 with respect to the workpiece W so as to draw a U-shape or C-shape, and reverses the inclination of the bending shaft 11 during that time.

  FIG. 3 shows an outline of the processing unit 10 extracted. FIG. 4 shows a schematic configuration using a cross section along the bending axis 11 of the processing unit 10. The processing unit 10 includes a bending mold clamp 20 that rotates about a bending axis (first axis) 11, a pressure roller 30 that bends the workpiece W in cooperation with the bending mold clamp 20, and a bending axis that is used for bending the clamp 20. 11, a first drive unit (pull bending mechanism) 40 that rotates around the bending shaft 11, a second drive unit (push bending mechanism) 50 that rotates the pressure roller 30 around the bending shaft 11, and the bending clamp 20 are moved up and down. A third drive unit (mold opening / closing mechanism) 60 that opens and closes, and a link unit (pressure swing mechanism) 70 that rocks the pressure roller 30 relative to the bending mold clamp 20 in conjunction with the mold opening / closing mechanism 60. The processing unit 10 includes a slide plate 49 slidably attached to the gantry 2 via the switching unit 6, and these mechanisms 40 to 70 are supported via the slide plate 49.

  The bending mold clamp 20 includes a pair of upper and lower first split mold portions (upper and lower molds) 23 and 22 including an arc-shaped portion, in this example, a ring-shaped first bending groove 24, and a pipe along the bending groove 24. It is used for bending a workpiece W such as. The pressure roller 30 includes a holding groove 31 having a semicircular cross section for holding the rod-like workpiece W in the first bending groove 24 having a semicircular cross section of the bending die clamp 20 from the outer peripheral side of the first bending groove 24. including. The holding groove 31 includes an arc-shaped portion, and in this example, a ring-shaped groove is provided over the entire circumference of the pressure roller 30.

  A bending mechanism (first driving unit) 40 that rotationally drives the bending clamp 20 drives a hollow shaft 45 that is supported by the slide plate 49 so as to rotate around the bending shaft 11, and the hollow shaft 45. A first motor (a bending motor) 41 and gears 42 a and 42 b that connect the bending motor 41 and the hollow shaft 45 are included. The bending motor 41 is fixed to the slide plate 49 via a support plate 48a. The hollow shaft 45 is rotatably attached to support plates 48b and 48c fixed to the slide plate 49 via bearings 47a and 47b. When the hollow shaft 45 is rotationally driven by the bending motor 41, the bending mold clamp 20 is rotationally driven around the bending shaft 11 through the upper mold opening / closing shaft 63 and the lower mold opening / closing shaft 62 that rotate together with the hollow shaft 45. .

  A push-bending mechanism (second drive unit) 50 that rotationally drives the pressure roller 30 includes a housing 55 that is rotatably mounted around the hollow shaft 45, and a second motor (push-bending motor) that rotationally drives the housing 55. ) 51, and gears 52a and 52b for connecting the push-bending motor 51 and the housing 55 to each other. The pressure roller 30 is attached to the housing 55 via the pressure swing mechanism 70, and when the push bending motor 51 rotates the housing 55, the pressure roller 30 rotates around the bending shaft 11 together with the housing 55. The housing 55 is attached to the hollow shaft 45 by bearings 57 a and 57 b provided on the outer periphery of the hollow shaft 45. The push-bending motor 51 is fixed to the slide plate 49 by a support plate 48c.

  The mold opening / closing mechanism (third drive unit) 60 is a mechanism for vertically opening and closing the upper mold 23 and the lower mold 22 that are a pair of upper and lower split mold portions of the bending mold clamp 20. The mold opening / closing mechanism 60 is inserted into the hollow shaft 45 so as to be slidable up and down along the bending shaft 11, and slides up and down along the bending shaft 11 inside the lower mold opening / closing shaft 62. An upper mold opening / closing shaft 63 inserted in a possible manner, a left / right screw 65 having screws different from the left and right of the lower mold opening / closing shaft 62 and the upper mold opening / closing shaft 63, and a third motor (mold opening / closing motor for rotationally driving the left / right screw 65) 61). The mold opening / closing motor 61 is fixed to the slide plate 49 via a support portion 48d, and the left and right screws 65 are rotatably attached to the support plate 48a via bearings 67.

  The upper mold 23 of the bending mold clamp 20 is screwed to the upper mold opening / closing shaft 63, and the lower mold 22 is screwed to the lower mold opening / closing shaft 62. The upper mold opening / closing shaft 63 and the lower mold opening / closing shaft 62 include at least a part of a portion connected to the upper mold 23, the lower mold 22, and the hollow shaft 45 (penetrating portion) including a non-rotating shape such as a square cross section, and bend each other. It rotates in conjunction with the periphery of the shaft 11. The left and right screws 65 include, for example, a left screw portion (left male screw) 65b at a portion connected to the upper mold opening / closing shaft 63, and a right screw portion (right male screw) 65a at a portion connected to the lower mold opening / closing shaft 62. Yes. The upper die opening / closing shaft 63 includes a left female screw portion 63 a, and the lower die opening / closing shaft 62 includes a right female screw portion 62 a formed on a nut 64. The left and right threads may be reversed. Therefore, when the left and right screws 65 are rotated forward and backward by the mold opening / closing motor 61, the upper mold opening / closing shaft 63 and the lower mold opening / closing shaft 62 move in different directions, and the upper mold 23 and the lower mold 22 are evenly opened / closed (balanced opening / closing). ) A nut 64 is attached to the lower mold opening / closing shaft 62 so that the mold closing height can be adjusted.

  As the left and right screws 65, it is desirable to use trapezoidal screws or the like within a lead angle that can be self-locked by a frictional force. The mold opening / closing motor 61 can be downsized by reducing the diameter around the bending axis and self-locking the mold opening force as compared with general ball screws and hydraulic / pneumatic cylinder opening / closing. Further, by adopting the left and right screws 65, the interference area around the bending shaft 11 can be reduced, the space efficiency can be improved, and the compact machining unit 10 can be provided.

  The pressure swing mechanism (link unit) 70 is a mechanism that links the housing 55 that rotates around the bending shaft 11 and the pressure roller 30, and includes a holder 71 that rotatably supports the pressure roller 30, and a fulcrum pin 72. Via a stay 74 that supports the housing 55 so that the holder 71 swings, an open spring 77 that applies a pulling force to the holder 71 in an open state, and a cylindrical cam that moves up and down integrally with the lower mold opening / closing shaft 62. 75 and a cam follower 73 that contacts the outer periphery of the cylindrical cam 75 and swings the holder 71 against the force of the opening spring 77.

  When the upper and lower molds 23 and 22 of the bending mold clamp 20 are opened (when the mold is opened), the pressure roller 30 is opened by the opening spring 77. When the upper and lower molds 23 and 22 are closed (when the molds are closed), the cam follower 73 is inclined by the skirt-shaped cylindrical cam 75 with the direction of the bending mold clamp 20 provided on the lower mold opening / closing shaft 62 being narrow and extending downward. Swing along 75a. A position where the holder 71 which is integrated with the cam follower 73 and supported by the stay 74 so as to swing obliquely with respect to the bending shaft 11 with the fulcrum pin 72 is rocked together with the cam follower 73 and the pressure roller 30 is brought into contact with the workpiece W. Close until. At the time of bending, the cam follower 73 is in contact with the outer cylindrical portion 75 b outside the inclined surface 75 a of the cylindrical cam 75, and the cam follower 73 rotates around the bending shaft 11 at a position away from the bending shaft 11. The cam follower 73 receives the opening force of the pressure roller 30 and clamps the workpiece W together with the bending die clamp 20.

  For this reason, in the processing unit 10, energy for holding the clamping force becomes unnecessary. Further, the upper and lower molds 23 and 22 and the pressure roller 30 can be opened and closed by a mold opening / closing motor 61, and a one-motor three-way opening / closing mechanism can be realized by the mold opening / closing mechanism 60 and the pressure swing mechanism 70. For this reason, in the processing unit 10, the upper and lower molds 23 and 22 and the pressure roller 30 are opened and closed synchronously by a small and energy saving opening / closing means.

  FIG. 5 shows how the upper and lower molds 23 and 22 and the pressure roller 30 are opened and closed. FIG. 5A shows the mold open state. The upper mold | type 23 of the bending type clamp 20, the lower mold | type 22, and the pressure roller 30 are shown in the state opened in three directions. FIG. 5B shows a closed mold state. The upper mold | type 23 of the bending type clamp 20, the lower mold | type 22, and the pressure roller 30 are shown closed. In this processing unit 10, a mold opening / closing mechanism 60 that opens and closes the upper mold 23 and the lower mold 22 of the bending mold clamp 20 and a pressure swing mechanism 70 that opens and closes the pressure roller 30 are linked via a skirt-shaped cylindrical cam 75. The pressure roller 30 is opened and closed simultaneously with the opening and closing of the upper and lower molds 23 and 22. For this reason, an actuator for opening and closing the pressure roller 30 is not required, a sensor for detecting the opening and closing position is not required, and a mechanism for controlling the operation of the pressure roller 30 is also unnecessary.

  In this example, a skirt-shaped cylindrical cam 75 is provided on the lower mold opening / closing shaft 62 positioned outside the upper mold opening / closing shaft 63. However, if there is no obstacle to the work W in / out, the upper mold opening / closing shaft 63 has a skirt-shaped cam. It is also possible to open and close the pressure roller 30 by providing 75. In addition to the same radius, the outer periphery of the skirt-shaped cylindrical cam 75 may have a form in which a part of the radius is changed to slightly change the closing position of the pressure 30 according to the bending angle. The closing force can be reduced and the amount of springback can be adjusted. In addition, the pressure roller 30 is configured to support a round roll so as to be rotatable. However, the pressure roller 30 is configured to support a rectangular outer pressure so that the pressure can be swung within a range necessary for bending left and right or to be slidable and slidable in the pipe axis direction. It may be.

  FIG. 6 shows an outline of the bending die clamp 20. FIG. 6A shows a state where the processing unit 10 is viewed from above, that is, from the direction of the bending clamp 20, and shows the bending clamp 20 as a center. FIG. 6B shows a state where the workpiece W is gripped by the first clamp groove 25 of the bending mold clamp 20 as viewed from the extending direction of the workpiece W (extending direction of the first clamp groove 25). FIG. 6C shows a state in which the workpiece W is gripped by the second clamp groove 26 of the bending clamp 20 as viewed from the extending direction of the second clamp groove 26.

  FIG. 7 shows the lower die 22 of the bending die clamp 20 as a representative, FIG. 7A is a plan view, FIG. 7B is a side view of the first clamp groove 25 in the extending direction, FIG. 7C is a side view of the second clamp groove 26 in the extending direction. The configuration of the upper mold 23 that forms a pair with the lower mold 22 is also the same as that of the lower mold 22 and is not shown.

  The bending mold clamp 20 holds a pair of upper and lower first split mold portions 23a and 22a including a first bending groove 24 including an arc-shaped portion, and a rod-shaped workpiece W inserted into the first bending groove 24. And a pair of upper and lower first clamp portions 23b and 22b. The pair of upper and lower first clamp portions 23b and 22b protrude from the pair of upper and lower first split mold portions 23a and 22a in the circumferential direction of the bending groove. For this reason, the upper first clamp part 23b and the upper first split mold part 23a are integrated to form the upper mold 23, and the lower first clamp part 22b and the lower first split mold. The lower mold 22 is formed integrally with the portion 22a.

  Each of the pair of upper and lower first clamp portions 23b and 22b intersects in an X shape and is connected to the first bending groove 24 so as to extend in the tangential direction of the first bending groove 24. A groove 25 and a second clamp groove 26 are included. The first clamp portions 23b and 22b are protrusions protruding in a trapezoidal shape from one place on the outer periphery of the upper and lower split bending dies, and are connected to the bending radius of the bending groove 24 by two lines for left and right bending. The semicircular grooves 25 and 26 for the pipe clamp are provided so as to intersect with each other in an X-shape symmetrically. One of the first clamp groove 25 and the second clamp groove 26 is used as a pipe nipping groove for bending one side to the left and the other side to the right. In this example, the first clamp groove 25 is a clamp groove for bending the workpiece W to the left when viewed from above, and the second clamp groove 26 is a clamp groove for bending the workpiece W to the right when viewed from above. is there.

  Therefore, one bending type clamp 20 corresponds to left bending and right bending, and is a bending type clamp common to left and right bendings. For this reason, in the processing unit 10 and the processing apparatus 1 employing the bending clamp 20, the rod-shaped member (work) W such as a pipe or a tube can be processed flexibly and efficiently.

  In this bending mold clamp 20, a bending groove (first bending groove) 24 corresponding to the pipe diameter is formed in the first split mold portions 22a and 23a with a bending radius, and the bending radius is formed in the first clamping portions 22b and 23b. Two straight semicircular grooves 25 and 26 for clamping that are connected to each other by tangent lines are formed so as to cross symmetrically in an X shape. For this reason, a gap where the workpiece W is not sandwiched is formed between the portion overlapping the bending groove 24 inside the clamp grooves 25 and 26 and the outer side on the pressure side from the X-shaped intersection of the two clamp grooves 25 and 26. . However, the work W can be pinched on the outer side from the front end side of the clamp receiving the bending reaction force to the intersection. For this reason, the clamp length from the center of the bending die may be approximately the same as the clamp length for unidirectional bending, and the semi-circular grooves 25 and 26 for clamping have an appropriate tightening allowance in the depth direction or the radial direction. It is also possible to adopt a configuration having a pusher function such as hard rubber in the vertical direction of the intersection of the X-shaped clamp grooves.

  FIG. 8 shows several bending operations that can be performed by the processing unit 10. FIG. 8A shows a left-hand bending process (first mode), FIG. 8B shows a right-hand bending process (second mode), and FIG. 8C shows a left-hand bending process (first mode). 3), and FIG. 8D shows a left-handed bending process (fourth mode). Each figure shows a bending start position. The bending clamp 20 can rotate 360 degrees. The pressure roller 30 can rotate in a range that does not interfere with the slide plate 49 and the support plate 48 b that connects the slide plate 49 and the processing unit 10.

  8A, the workpiece W is set on the right side of the bending clamp 20 and the clamp portions 23b and 22b of the bending clamp 20 are bent with respect to the pressure roller 30. In the left bending process (first mode) of FIG. Set in direction. The bending motor 41 is driven and the bending mechanism 40 is used to rotate the bending clamp 20 to the left (clockwise, first direction) when viewed from above. The bending roller 20 is rotated with respect to the pressure roller 30 without rotating the pressure roller 30.

  8B, the workpiece W is set on the left side of the bending clamp 20 and the clamp portions 23b and 22b of the bending clamp 20 are bent with respect to the pressure roller 30. Set in direction. The bending motor 41 is driven to rotate the bending clamp 20 to the right (counterclockwise direction, second direction) when viewed from above. The bending roller 20 is rotated with respect to the pressure roller 30 without rotating the pressure roller 30.

  8C, the work W is set on the right side of the bending clamp 20 and the pressure roller 30 is bent with respect to the clamp portions 23b and 22b of the bending clamp 20. Set in direction. The push-bending motor 51 is driven and the push-bending mechanism 50 is used to rotate the pressure roller 30 to the left (clockwise) when viewed from above. The pressure roller 30 is rotated with respect to the bending die clamp 20 without rotating the bending die clamp 20.

  8D, the work W is set on the left side of the bending clamp 20 and the pressure roller 30 is bent with respect to the clamp portions 23b and 22b of the bending clamp 20. Set in direction. The push-bending motor 51 is driven to rotate the pressure roller 30 to the right (counterclockwise) when viewed from above. The pressure roller 30 is rotated with respect to the bending die clamp 20 without rotating the bending die clamp 20.

  In the processing unit 10, the bending mold clamp 20 is rotated by the pulling motor 41 and the pressure roller 30 is selectively rotated by the pressing and bending motor 51. Mixed bending is possible.

  Further, in the bending mold clamp 20, left and right bending clamp grooves 25 and 26 are provided symmetrically in one place on the outer periphery of the upper and lower split molds 22 and 23 that open and close in the direction of the bending axis 11. For this reason, interference between the radial direction and the rotational direction of the bending shaft 11 of the clamp mechanisms (clamp portions) 23b and 22b can be minimized. Further, by rotating the pressure roller 30 and the bending clamp 20 independently, the pressure position and the clamp position can be changed at various angles around the bending axis 11 including the start and end positions of the left and right pulling bending. Can be freely rotated. Therefore, the bending die clamp 20 is a bending die clamp that can be used for left and right pull bending that can accommodate a large bending angle, and the processing unit 10 that employs the bending die clamp 20 and is rotatable independently of the pressure roller 30. Can be bent in various ways, and can handle large bending angles.

  In FIG. 9, the outline | summary of the method (a processing method, the control method of a processing apparatus) of processing the workpiece | work W with the processing apparatus 1 is shown with the flowchart. In step 101, the machining position control unit 9 a of the control unit 9 controls the workpiece support unit 5 to move the workpiece W so that the machining position reaches the machining unit 10. Further, the angle (rotation angle) of the workpiece W is also controlled so that the bending direction faces a desired direction.

  When the workpiece W reaches the bending point, the machining control unit 9b determines the machining mode in step 102, and if it is the left-hand bending in the first mode M1, the first mode (left-hand bending in step 103) is determined. Set the processing unit to (Processing). In step 109, bending is performed in the set mode. If the mode is different from the bending process performed previously, in step 103, a process of changing the orientation of the machining unit 10 with respect to the workpiece W is performed.

  The rotational movement of the same bending direction of pulling and pushing is performed in a state where the bending axis position of the processing unit 10 is fixed in the mold open state. Switching of the left and right bending positions of the processing unit 10 is performed by the switching unit 6 so that the processing unit 10 is moved up and down and swinged simultaneously. The machining unit 10 is moved to the U-shaped trajectory 6x to bypass the workpiece W. Switching between the left and right bending positions and supply / discharge of the workpiece W are performed by rotating and retracting the clamp protrusions (clamp portions) 22b and 23b of the bending mold clamp 20 to a position where they do not interfere with the workpiece W in the mold open state. The clamp position of the bending die 20 and the left and right bending position of the pressure roller 30 are switched by rotating the pressure roller 30 to the next bending start position after the processing unit 10 is lowered, and the clamping portion (protrusion) of the bending die clamp 20 at the rising end. Part) 22b and 23b are rotationally moved to the bending start position. These left / right bending, push bending, and pull bending switching processes can be performed in parallel with the workpiece feed in step 101. Switching between the left and right bending positions may be performed by raising and lowering the pipe chuck (work support unit) 5 and moving left and right.

  Similarly, in step 104, if the second mode M2 is right-handed bending, the processing unit 10 is set in the second mode (right-handed bending) in step 105, and in step 109, bending is performed in the set mode. Processing. If the left push bending process of the third mode M3 is performed in step 106, the machining unit 10 is set in the third mode (left push bending process) in step 107, and the bending process is performed in the set mode in step 109. . If it is not these modes, the processing unit 10 is set in the fourth mode (right push bending) in step 108, and bending is performed in the set mode in step 109.

  In the bending process, the workpiece W is gripped by one of the clamp grooves 25 or 26 of the upper and lower molds 23 and 22 with the upper and lower molds 23 and 22 and the pressure roller 30 of the bending mold clamp 20 closed. In the case of bending for rotating the upper and lower molds 23 and 22, the upper and lower molds 23 and 22 are rotated together with the bending hollow shaft 45 through a gear by a bending motor 41. In the case of push-bending in which the pressure roller 30 supported by the housing 55 is rotated, the pressure roller 30 is rotated around the bending clamp 20 by a push-bending motor 51 via a gear, and the workpiece W is moved up and down the mold 23. Bending is performed along the bending grooves 24 formed in the grooves 22 and 22.

  In step 110, it is determined whether or not the bending process is completed. If there is a next bending process, the process returns to step 101 and the process is repeated. The control unit 9 for controlling the processing method (control method) can be realized by a computer resource including a CPU and a memory, and the processing method (control method) can be provided as a program (program product) recorded on an appropriate recording medium.

  By this method, the rear end of a rod-like workpiece W such as a pipe is chucked by the pipe feeding unit (work support unit) 5, and the pipe is moved from the first bending point on the tip side of the workpiece W toward the final bending point on the chuck side. The workpiece W can be machined into various shapes by bending and twisting the feed unit 5.

  The workpiece W may be fed in the axial direction by mounting the machining unit 10 and the left / right bending position switching unit 6 on the feeding unit and feeding the workpiece W, and fixing the mechanism on the pipe twist chuck side.

  In this processing apparatus 1, continuous bending processing in which the left and right bending directions and the pull bending method are mixed (combined) can be performed. For this reason, the bending control program (processing data) can be generated by selecting and specifying a bending direction and a bending method without interference for each bending portion. For example, a bending direction and bending method identification flag may be added to a feed / twist / bending processing data table for each bending portion with respect to a general one-way / one-direction bending control program (data). In the processing apparatus 1, the bending mold clamp 20 and the pressure roller 30 are rotated to the bending start position by the control program corresponding to the selected and specified identification flag, and the switching unit 6 switches the left and right bending positions if necessary. This is done by switching the processing unit 10 to the left and right bending positions. Subsequent bending operations may be the same as the general one-way one-system bending operation control. The switching operation of the bending direction and the bending method can be controlled so as to be performed automatically and continuously by lapping with the feeding / twisting operation between the bending points.

  Further, the control unit 9 may have an automatic arc length calculation function according to the bending radius and the bending angle in order to feed the pipe corresponding to the bending arc length. It is possible to control the feeding of the workpiece W so that the workpiece W is fed before the bending process in addition to the feeding of the straight pipe length between the bending points at the time of bending, while feeding at the time of bending.

  The processing unit 10 can perform mixed bending in both the left and right directions with a pair of clamp integrated bending molds (bending clamps) 20 and a pressure (pressure roller) 30. For this reason, there is no interference mechanism in the bending direction, and the bending interference area can be reduced. Moreover, the balanced opening and closing of the clamp integrated bending type enables the feeding, twisting and bending back with a minimum opening and closing stroke by a lapping operation. For this reason, high-speed bending is possible. Further, the upper and lower bending dies (upper and lower dies) 23 and 22 and the pressure 30 are opened and closed in three directions by one motor using the die opening / closing mechanism 60 and the pressure swing mechanism 70. By adopting such an energy saving opening / closing means, it is possible to provide a machining unit 10 that is small and light and capable of performing various bending processes at high speed.

  In conventional processing equipment, when performing continuous bending at multiple locations, feeding, twisting, and unbending operations between bending points are performed in the case of a clamp-integrated bending type with a unidirectional opening and closing clamp for the lower mold. It is necessary to carry out after releasing from the part, and in the case of pressure-pressed bending, it is necessary to return the pressure to the bending start position and open the clamp. For this reason, there is a problem that the bending time becomes long because the feeding, twisting and bending return operations cannot be performed with the pipe shaft fixed.

  In addition, car air conditioner piping pipes used in narrow spaces in the engine room often have a short straight pipe length to the connecting fittings at both ends and the bending point. When bending after processing both ends, linear slide pressure is required. In the case of the bending method, there is a problem that the slide pressure interferes with the connection fitting on the bending end side, and in the case of the roll pressure push bending method, the connection fitting on the bending start side interferes with the roll pressure and cannot be bent. The linear slide pressure pull bending method requires a pressure length that is the sum of the slide allowance that follows the arc length of the maximum bend angle and the remaining allowance of about pipe diameter d. become longer. The roll pressure pushing / bending method generally requires a straight pipe length of about 2d, which is the sum of the offset length 1d of the roll position and the roll radius 1d. For this reason, when the straight pipe length of both ends is short, it is necessary to perform end processing after bending or post-bend in a separate process.

  The machining unit 10 and the machining apparatus 1 of this example solve these problems.

  The above-described processing device 1 is an example, and instead of a device that fixes the processing unit 10 that is a bending unit and performs twisting and feeding on the pipe side (work side), the processing unit 10 side is twisted. Alternatively, the processing unit 10 of this example may be incorporated in a rotary bending apparatus or a robot bending apparatus that carries the bending unit. In the case where the machining unit 10 is portable by the robot and is fed and twisted on the robot side, the machining unit 10 can be reduced in weight with a simple configuration, so the loadable weight can be reduced, and short stroke opening and closing and high-speed bending by lapping operation can be performed. In addition, the twisting motion range that has a lot of interference and long motion time in robot bending can be halved by bending left and right. For this reason, robot bending can be performed at high speed.

  In addition, the above processing apparatus 1 has a configuration capable of supporting mixed bending of four patterns of left and right pull bending, but if not all functions are required depending on the target product or usage form, unnecessary functions are omitted. You may implement | achieve with the structure which was. For example, when only bending is sufficient, the left / right bending mode including the switching unit 6 that switches the two positions of the pressure to the left / right bending position without the push-bending rotation function may be adopted. When left and right mixed bending is not necessary, the function of switching the left and right positions dynamically (the quick turn unit) 6 is omitted, and the processing unit (bending unit) 10 is switched to the left and right bending positions by a manual method or the like. It is good also as a form provided only with. When the roundness accuracy of the pipe to be bent is poor and the cross clamp groove in which the left and right bending clamp grooves are gathered in one place is not suitable, the entire circumference of the pipe is replaced with the bending clamp 20 of this example having the cross clamp grooves. A bending-type clamp that performs one-way bending with a unidirectional clamping groove that can be held between the two and push-bending in the opposite direction may be employed.

  FIG. 10 shows a different example of a bending clamp. FIG. 11 shows a state where the bending clamp is opened. In the case of pipe bending in which different pipe diameters or different bending radii are mixed, a bending die clamp 80 including a plurality of bending grooves can be employed. In addition to the upper and lower molds 23 and 22 of the bending mold clamp 20, the bending mold clamp 80 includes a pair of upper and lower second split mold portions 83a and 82a including a second bending groove 84 including an arcuate portion, and a second And a pair of upper and lower second clamp portions 83b and 82b for holding the rod-shaped workpiece W inserted in the bending groove 84. The pair of upper and lower second clamp parts 83b and 82b protrude from the pair of upper and lower second split mold parts 83a and 82a in the circumferential direction of the bending groove 84, and are connected to the upper second split mold part 83a and the second split mold part 83a. The upper mold 83 is constituted by the two clamp parts 83b, and the lower mold 82 is constituted by the lower second split mold part 82a and the second clamp part 82b.

  As shown in FIG. 12, each of the pair of upper and lower second clamp portions 83 b and 82 b intersects in an X shape and extends in the tangential direction of the second bending groove 84 with respect to the second bending groove 84. A third clamp groove 85 and a fourth clamp groove 86 connected to each other are included. The lower mold 22 of the first split mold part and the upper mold 83 of the second split mold part are integrally formed. The upper mold 23 and the lower mold 82 are centered on the common mold (medium mold) 89. Are opened and closed by the mold opening / closing mechanism 60.

  13A and 13B show the middle mold 89 extracted from the bending mold clamp 20. FIG. 13A is a plan view of the middle mold 89, and FIG. 13B shows the middle mold 89 as viewed from the extending direction of the first clamp groove 25. FIG. 13C is a side view of the middle die 89 as viewed from the direction in which the second clamp groove 26 extends.

  10 is added to the bending die clamp 20 of the upper and lower die structure, and the bending die clamp 80 is provided with the upper and lower bending grooves 24 and 84 on the mating surface of the upper die and the middle die. A pair of left and right bending clamp grooves 25 and 26 and 85 and 86 are provided in the same manner as the bending clamp 20 of the one-stage bending described above. The bending die clamp 80 includes a lifting groove 87 on both sides of the opening / closing shaft 63 of the upper die 23, a pin 88a inserted from the middle die 89 into the groove, and a bolt 88b for controlling the opening position.

  The machining unit 10 that employs a bending die clamp 80 that is a multi-stage left / right pulling common bending die also includes a two-stage holding groove corresponding to the positions of the two-stage bending grooves 24 and 84 when the pressure roller 30 is closed. A pressure roller is preferred. In such a processing unit 10, the upper and lower bending grooves 24 and 84 can be dynamically selected to perform two-step bending. In this bending mold clamp 80, the middle mold 89 does not open and close. For this reason, it is desirable to switch the left and right bending positions after the pipe has escaped up and down from the clamp groove of the middle die 89 by raising and lowering the workpiece support unit 5 holding the workpiece W.

  FIG. 14 shows different pressure rollers. The pressure roller 30 includes an auxiliary pressure 35 mounted in the holding groove 31. The auxiliary pressure 35 holds the workpiece W at a contact point different from the contact point between the holding groove 31 and the workpiece W. The auxiliary pressure 35 includes a U-shaped portion 36 that is inserted into the holding groove 31.

  FIG. 14 (a) shows a state in which the pressure roller 30 provided with the auxiliary pressure 35 that can be used for both left and right pulling bending is left-bending by the processing unit 10 as viewed from above. FIG. 14B shows a state in which the workpiece W is gripped together with the bending clamp 20 using the pressure roller 30 provided with the auxiliary pressure 35.

  15A and 15B are views showing the appearance of the auxiliary pressure 35. FIG. 15A is a plan view, FIG. 15B is a side view seen from the direction of the bending clamp 20, and FIG. It is the side view seen from the bending process axial direction of one direction. The auxiliary pressure 35 has a cross-sectional shape provided with a gap that does not contact the bending groove (holding groove) 31 of the pressure roller 30, and is entirely U-shaped or C-shaped with a face-contact groove 37 extending in the center direction of the pressure roller 30. (In the case of C-shape, the pressure roller 30 is divided into upper and lower parts so as to be assembled) and is fixed to a holder 71 provided with a relief groove of the pressure roller 30.

  The auxiliary pressure 35 has a side contact groove 37 that is substantially parallel to the pipe shaft that receives the bending reaction force by the surface contact by sharing the outer surface of the work W with the pressure roller 30 on the side that contacts the work W during left and right push bending. It is provided symmetrically. For this reason, it has a pressure structure that can be shared by pulling and bending left and right. If the pipe side of the auxiliary pressure 35 has a planar shape that fits within the outer diameter of the pressure roller 30, bending can be performed without increasing the inter-bending dimension. By providing the auxiliary pressure 35, the bending reaction force from the bending point can be achieved. The bending angle accuracy can be improved by expanding the distance and pressure receiving area.

  Although the pressure roller 30 rotates, since the work W slides on the auxiliary pressure 35, the surface contact surface of the auxiliary pressure 35 is slightly lower than the receiving groove (holding groove) of the pressure roller 30 to the extent that pipe scratches do not occur. It is preferable to set it to the position.

  As described above in detail, the bending clamp, the processing unit, and the processing apparatus of the present invention are described in the scope of the claims, and the combined use form utilizing the features is not limited to such an embodiment. However, the present invention can be carried out in various modes without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Processing apparatus 10 Processing unit 20 Bending type clamp,
22a, 23a A pair of upper and lower first split mold portions 22b, 23b A pair of upper and lower first clamp portions 25 First clamp groove, 26 Second clamp groove 30 Pressure roller

Claims (11)

A pair of upper and lower first split mold portions including a first bending groove including an arc-shaped portion;
A pair of upper and lower first clamp portions for holding a rod-shaped member inserted into the first bending groove, from the pair of upper and lower first split mold portions in the circumferential direction of the first bending groove. A pair of upper and lower first clamp portions protruding,
Each of the pair of upper and lower first clamp portions intersects in an X shape and is connected to the first bending groove and extends in the tangential direction of the first bending groove. A bending clamp including two clamping grooves. In claim 1,
A pair of upper and lower second split mold portions including a second bending groove including an arc-shaped portion;
A pair of upper and lower second clamp portions for holding a rod-shaped member inserted into the second bending groove, from the pair of upper and lower second split mold portions in the circumferential direction of the second bending groove; A pair of upper and lower protruding second clamp portions;
Each of the pair of upper and lower second clamp portions intersects with an X shape and is connected to the second bending groove and extends to the tangential direction of the second bending groove and the third clamping groove and the second clamping groove, respectively. 4 clamping grooves,
A bending clamp in which a lower mold of the first split mold part and an upper mold of the second split mold part are integrally formed. A bending clamp according to claim 1 or 2,
A first drive unit that rotates the bending clamp about a first axis;
A pressure roller including a holding groove that holds a rod-shaped member in the first bending groove of the bending clamp from an outer peripheral side of the first bending groove, the holding roller including an arc-shaped portion;
A processing unit having a second drive unit that rotates the pressure roller about the first axis independently of the first drive unit. In claim 3,
A control unit for controlling the first drive unit and the second drive unit;
The control unit is
A first mode in which the first drive unit and the second drive unit are controlled to rotate the bending clamp in a first direction around the first axis with respect to the pressure roller;
A second mode of rotating the bending clamp with respect to the pressure roller in a second direction about the first axis;
A third mode of rotating the pressure roller in the first direction about the first axis with respect to the bending clamp;
And a fourth mode in which the pressure roller is rotated in the second direction about the first axis with respect to the bending clamp. In claim 3 or 4,
A processing unit having an auxiliary pressure that holds the rod-like member at a contact different from the contact between the holding groove and the rod-like member in the holding groove of the pressure roller. In claim 5,
The auxiliary pressure is a processing unit including a U-shaped or C-shaped portion inserted into the holding groove. In any of claims 3 to 6,
A third drive unit for moving at least one of the pair of upper and lower first split mold portions of the bending mold clamp up and down;
The bending mold moves in conjunction with at least one of the pair of upper and lower first split mold parts, and when the pair of upper and lower first split mold parts are closed, the pressure roller is adjacent to the bending mold clamp. A processing unit comprising: a link unit configured to hold a rod-shaped member with a clamp and the pressure roller. In claim 7,
The link unit includes a skirt-shaped cylindrical cam that moves up and down in conjunction with at least one of the pair of upper and lower first split mold parts,
The pressure roller is moved in contact with the peripheral surface of the skirt-shaped cylindrical cam, and the pressure roller is moved in the vertical direction by moving the skirt-shaped cylindrical cam up and down to open and close the pair of upper and lower first split mold portions And a cam follower that moves so as to open and close between the pressure roller and the pressure roller. A processing unit according to any one of claims 3 to 8,
A first support unit for supporting the processing unit;
A second support unit for supporting the rod-shaped member,
The first support unit moves the processing unit so that the unprocessed portion of the bar-shaped member supported by the second support unit is on the first side and the second side of the bending mold clamp. A processing device including a unit to perform. In claim 9,
A relative angle between the processing unit supported by the first support unit and a rod-shaped member supported by the second support unit, and a relative angle between the first support unit and the second support unit; A processing apparatus having a processing control unit for controlling a specific distance. A processing method using a processing apparatus including a bending die clamp and a pressure roller,
The bending mold clamp includes a pair of upper and lower first split mold portions including a first bending groove including an arcuate portion and a pair of upper and lower first holding a rod-shaped member inserted into the first bending groove. A pair of upper and lower first clamp portions protruding in the circumferential direction of the first bending groove from each of the pair of upper and lower first split mold portions. Each of the clamp portions intersects in an X shape and has a first clamp groove and a second clamp groove respectively connected to the first bending groove so as to extend in a tangential direction of the first bending groove. Including
The pressure roller is a holding groove that holds a rod-shaped member in the first bending groove of the bending-type clamp from the outer peripheral side of the first bending groove, and includes a holding groove that includes an arc-shaped portion,
The processing method is
Processing in a first mode in which the bending clamp is rotated in a first direction about a first axis with respect to the pressure roller, and the bending clamp is moved on the first axis with respect to the pressure roller. Processing in the second mode that rotates in the second direction around the center, and processing in the third mode in which the pressure roller is rotated in the first direction around the first axis with respect to the bending mold clamp And processing the rod-like member into a shape that includes processing in a fourth mode in which the pressure roller is rotated about the first axis in the second direction with respect to the bending mold clamp. Method.

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