JPH0694051B2 - Axial bending device for long workpieces - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) In the present invention, for example, when manufacturing a door sash, a molding, etc., a long metal material preliminarily formed into a predetermined cross-sectional shape is bent in a multidimensional direction. The present invention relates to a long axis bending apparatus for a workpiece.

(Prior Art) Conventionally, as an axial bending device of this type, for example, Japanese Patent Publication No.
-43165 (hereinafter referred to as a prior art example).

(Problems to be Solved by the Invention) In the prior art shown in the preceding example, a guide roller element supporting a roller capable of holding a material is simply provided so as to be rotatable about two orthogonal axes. Since the slide supporting the guide roller element is moved vertically and horizontally to bend the material in an ironing bending manner, there is a problem that it is difficult to bend the material accurately.

Further, in the prior art, since the slide supporting the guide roller element and the like has an annular shape with the upper side closed, assembly of the guide roller element and the like, maintenance is troublesome, and the overall configuration is There is a problem of increasing the size.

(Means for Solving Problems) In order to solve the conventional problems as described above, the present invention provides a support device that allows a long workpiece to move in the longitudinal direction and supports the workpiece. And a bending device for bending a work piece at a portion protruding from the supporting device, the bending device being a long work piece, wherein the bending device is supported by the supporting device. And a first rotating member rotatably supported by the machine body about a first axis that is substantially parallel to the axis of the straight work material before bending, and orthogonal to the first axis. A second rotation member rotatably supported by the first rotation member about a second axis in the direction of rotation and a third direction in a direction orthogonal to the first and second axes. A third rotating member rotatably supported by the second rotating member about the axis of the third rotating member, and the third rotating member. A bending action member provided with an engaging portion that appropriately engages with the work material so as to bend the work material in a portion protruding from the supporting device, and first, second, and third rotating members. A plurality of rotation actuating devices for respectively rotating and a control device for controlling the operation of each rotation actuating device are provided, and the first rotating member is at least near the first axis. The space portion is formed to have an arcuate portion on the lower side and the upper side of the space portion is opened, and the second and third rotating members are arranged in the space portion. It is a thing.

(Operation) In the above-mentioned configuration, the work piece engaged with the engaging portion of the bending member is twisted about the axis of the work piece by turning the first turning member by the turning operation device. You can Further, by rotating the second and third rotating members, the workpiece can be bent in a direction intersecting the longitudinal direction.

The bending of the work piece by the second and third rotating members is
Since the bending is performed by rotating the bending member around the axis in the direction orthogonal to the axis of the workpiece, the workpiece can be moved without moving the first rotating member left and right and up and down. The bending process can be performed. Therefore, for example, it is easy to perform bending while rotating the first rotating member to impart twist to the work material, and it is possible to perform accurate twisting and bending.

Further, since the upper side of the first rotating member is open, the first and second rotating members can be easily assembled, and the maintenance after the assembly can be easily performed. It can be made compact.

Embodiment Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

The bending apparatus according to this embodiment is, for example, when manufacturing a vehicle door sash or moldings, for example, after forming a metal strip plate material such as stainless steel into a predetermined cross-sectional shape in advance, the continuous longitudinal direction, that is, the axis line. It is applied to bend in two-dimensional or three-dimensional directions.

As shown in FIG. 1, the axial line bending device is a feeding device 1 for a work material X which is composed of a pinch roll group that feeds a long work material X continuously or intermittently in the longitudinal direction, Following the detection device 2 such as a rotary encoder that slidably contacts the work material X to measure the stock feeding size, and the support device 3 that holds the work material X so that it can be inserted, the support device 3 is forward in the work material feed direction. The bending apparatus is arranged on the right side in FIG. 1.

The support device 3 has an insertion port that allows only the movement of the workpiece X in the longitudinal direction, and a core that fits inside the workpiece may be provided in the mouth near the outlet.

As shown in FIGS. 2 and 3, the bending apparatus includes a first swing rotation mechanism unit 4 for applying a twist bend to the axis line of the work piece X, and a left or right side of the axis line of the work piece X. It is provided with a second swinging and rotating mechanism section 5 for applying a bend and a third swinging and rotating mechanism section 6 for applying an upward or downward bend to the axis of the workpiece X.

The first swing rotation mechanism section includes a first rotation member 40. The first rotating member 40 has a space S in which the second and third rotating members 50 and 60 of the second and third rocking and rotating mechanism portions 5 and 6 are arranged.

More specifically, the first rotation member 40 forms a cutout portion having an open upper side so as to reach the outer peripheral surface on the upper side of the disc including the central portion of the disc. Department S
Is formed. In the present embodiment, the remaining substantially crescent-shaped portion that is cut off about 3/4 on the upper side, including the central portion of the plate, is the first rotation member 40, and is cut off on about 3/4 of the above. The corresponding portion corresponds to the space S. The first rotating member 40 has a semicircular arc-shaped guide edge 41 centered on the machining axis (first axis) of the workpiece X on the lower side.
The guide rollers 71 and 72 mounted on the machine body 7 are slidably arranged on the guide edge 41 so that the guide rollers 71 are rotatable. Further, the first rotating member 40 is provided with a rail portion 42 that is formed to project in a convex shape, and is supported by the machine body 7 by fitting the rail portion 42 into the concave groove 73 of the machine body 7. A side portion of the first rotating member 40 is provided with a semi-arcuate concave portion 43 concentric with the guide edge 41 and having gear teeth formed on the inner surface thereof. The concave portion 43 has a rotating portion fixed to the machine body 7. A gear 45 that is interlocked with a drive motor 44, which is an example of an operating device, by a timing belt or the like, and that is rotated at a reduced speed is meshed.

The second swinging and rotating mechanism section 5 includes a second rotating member 50. The second rotating member 50 includes a lower horizontal plate portion 51, an upright plate portion 52, and an upper horizontal plate portion 53, which are substantially Z-shaped. Is formed to exhibit. The second rotating member 50 has a rotation axis center (first first rotating member 40).
Is provided so as to be rotatable about a second axis that is orthogonal to the axis of the first rotating member 40. In the present embodiment, the plate of the first rotating member 40 is provided via the vertical axis 54. It is rotatably supported on the surface. Gear teeth 55 are provided on the side of the lower horizontal plate portion 51 having a semi-arcuate shape, and the gear teeth 55 serve as an example of a rotation actuating device attached to the first rotation member 40. A worm gear 57 that is connected to the drive motor 56 via a timing belt or the like and rotates is disposed in mesh with the drive motor 56, and the second rotation member 50 is rotated by the motor 56 via a reduction mechanism.

As shown in FIG. 5, the third swinging rotation mechanism portion 6 is provided with a bending acting member 60b including a shoe, a shoe holder and the like having an engaging portion 60a through which the workpiece X can be inserted. Member 6
Equipped with 0. The third rotating member 60 is provided with a second shaft via a horizontal shaft 61 as a third shaft center orthogonal to the first and second shaft centers.
The upright plate portion 52 of the rotating member 50 is axially supported. Horizontal axis 61
Is provided in the same plane as the vertical axis 54, and a worm wheel 62 is mounted on the projecting end side of the horizontal axis 61. The worm wheel 62 has an upper horizontal plate portion 53 of the second rotating member 50.
The drive motor 63, which is an example of the rotary operation device disposed in the above, is meshed with the worm 64 that is connected by a timing belt or the like to rotate, and the third rotating member 63 is rotated by the motor 63 via a reduction mechanism. It is moved. Further, an auxiliary shoe 65 is provided on the third rotating member 60 so as to project to the front in the feeding direction of the workpiece X, and the auxiliary shoe 65 is formed in a substantially L shape on the front end side as shown in FIG. Then, the tips 65a and 65b of the auxiliary shoes may be set so as to project to a position where they are in sliding contact with the workpiece X when the workpiece X is in a straight line state.

Reversible servomotors are used as the drive motors 44, 56, 63 as an example of a rotation actuating device for rotating the swinging rotation mechanism parts 4, 5, 6, and each of the motors is used by the detection device 2. And a first or second or third turning member 40 in response to a command corresponding to the position detection of the detection device 2 by connecting the respective devices via a suitable control device 8 such as a computer or an NC control device. 50 and 60 are configured to be driven independently or in synchronization with each other.

In the axial bending device for a long work piece having the above configuration,
Detection device force 2 When the feed amount (feeding dimension) of the workpiece X is measured and reaches a predetermined length, the workpiece X is transmitted via the controller 8.
Drive commands corresponding to the desired bending shape of each swing rotation mechanism unit 4,
Emitted to the drive motors 44, 56, 63 of 5,6. In response to the command, the drive motor 44 operates in the first swing rotation mechanism unit 4 to rotate the first rotation member 40 by the gear 45 around the axis of the workpiece X by a desired angle. With this rotation, the second rotating member 50 and the third rotating member 60 are entirely rotated, so that the bending member 60b is applied to the workpiece X linearly fed from the supporting device 3. Causes the axis to be twisted and bent.

In addition, when the drive motor 56 operates in the second swing rotation mechanism section 5, the second rotation member 50 is rotated about the vertical axis 54 in the clockwise or counterclockwise direction at a desired angle. As the third rotating member 60 also rotates as shown in FIG. 4, the bending acting member 60b of the third rotating member 60 forces the axial direction of the workpiece X to the right or left. You can bend

Further, when the drive motor 63 operates in the third swing rotation mechanism, only the third rotation member 60 tilts upward or downward about the horizontal shaft 61 at a desired angle and rotates. The workpiece X engaged with the engaging portion 60a of the bending member 60b can be forcibly bent upward or downward with the rotation.

When these axial line bendings are performed in a complex manner, a work piece having a certain length can be bent in a multidimensional direction as shown in FIG.

By the way, the present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. That is, for example, the body can be configured to be vertically and horizontally movable similarly to the slide in the above-described prior art. In this case, it is desirable that the vertical and horizontal movements of the machine body and the rotations of the third and second rotation members be associated with each other.

(Effects of the Invention) As will be understood from the above description of the embodiments, in short, in the present invention, the bending action member is appropriately oriented by rotating the second and third rotation members by the actuating device. Since it is forcibly bent to the work material engaged with the engaging portion of the bending action member,
The bending work principle is different from the conventional ironing-bending technique, and the bending work can be performed at a more accurate bending angle than the conventional technique.

Further, since the first rotating member has a shape in which a space is formed at least near the center of rotation, an arcuate portion is provided on the lower side, and the upper side is opened, the second and third rotation members are provided. It is easy to assemble the moving member, easy to perform maintenance after assembling, and more compact than the case where the first rotating member is annular.

[Brief description of drawings]

FIG. 1 is a side view of an axis bending apparatus according to the present invention, FIG. 2 is a front view of the apparatus, FIG. 3 is a plan view of the apparatus, and FIGS. 4 and 5 are operation explanatory views of the apparatus. is there. X: long work material, 3: supporting device, 40: first rotating member, 50: second rotating member, 60: third rotating member, 44, 56, 63: drive motors.

Claims (3)

[Claims] 1. A supporting device for supporting a workpiece by allowing a long workpiece to move in the longitudinal direction, and a bending device for bending a portion of the workpiece protruding from the supporting device. A long work piece axis bending device comprising: a first work piece which is substantially parallel to the axis line of the straight work piece material X before bending, which is supported by the supporting device 3; A first rotating member 40 rotatably supported on the machine body 7 about the axis of the first rotating member, and a first rotating member about the second shaft center in the direction orthogonal to the first axis. A second rotating member 50 rotatably supported by 40 and a second rotating member 50 about a third shaft center in a direction orthogonal to the first and second shaft centers. A third rotating member 60 movably supported and a portion of the work piece provided on the third rotating member 60 and protruding from the supporting device 3 are bent. A bending action member provided with an engaging portion that appropriately engages a workpiece, a plurality of rotation actuating devices for rotating the first, second, and third rotation members, respectively, and each operation And a controller 8 for controlling the operation of the moving device, wherein the first rotating member 40 forms a space at least near the first axis and has an arcuate portion on the lower side. Prepare,
And the shape of the aspect in which the upper side of the space portion is opened,
The long axis bending device for a workpiece, wherein the second and third rotating members 50, 60 are arranged in the space. 2. A supporting device for supporting a workpiece by allowing a long workpiece to move in the longitudinal direction, and a bending device for bending a portion of the workpiece protruding from the supporting device. A long work piece axis bending device is provided, wherein the bending device is a first work piece which is supported by the supporting device 3 and is substantially parallel to the axis line of the straight work piece X before bending. A first rotating member 40 rotatably supported on the machine body 7 about an axis and a first rotating member 40 about a second axis in a direction orthogonal to the first axis. A second rotation member 50 rotatably supported by the second rotation member 50 and a second rotation member 50 about a third axis in a direction orthogonal to the first and second axes. A third rotating member 60 that is freely supported, and a portion of the third rotating member 60 that projects from the supporting device 3 should be bent. A bending acting member having an engaging portion that appropriately engages with a work material, a plurality of turning actuating devices for turning each of the first, second, and third turning members, and each turning operation And a control device 8 for controlling the operation of the device, wherein the first rotating member 40 has a space part at least near the first axis and an arcuate part on the lower side, In addition, the upper side of the space is opened, the second and third rotating members 50 and 60 are arranged in the space, and the first rotating member 40 is rotated. A first rotation actuating device for rotating the second rotation member 50 is attached to the machine body 7.
A second rotation actuating device for rotating the
A long workpiece, which is mounted on the second rotating member 50 and is mounted on the second rotating member 50, and is mounted on the second rotating member 50 for rotating the third rotating member 60. Axis bending device. 3. A supporting device for supporting a workpiece by allowing a long workpiece to move in the longitudinal direction, and a bending device for bending a portion of the workpiece protruding from the supporting device. A long work piece axis bending device comprising: a first work piece which is substantially parallel to the axis line of the straight work piece material X before bending, which is supported by the supporting device 3; A first rotating member 40 rotatably supported on the machine body 7 about the axis of the first rotating member, and a first rotating member about the second shaft center in the direction orthogonal to the first axis. A second rotating member 50 rotatably supported by 40 and a second rotating member 50 about a third shaft center in a direction orthogonal to the first and second shaft centers. A third rotating member 60 movably supported and a portion of the work piece provided on the third rotating member 60 and protruding from the supporting device 3 are bent. A bending action member provided with an engaging portion that appropriately engages a workpiece, a plurality of rotation actuating devices for rotating the first, second, and third rotation members, respectively, and each operation And a controller 8 for controlling the operation of the moving device, wherein the first rotating member 40 forms a space at least near the first axis and has an arcuate portion on the lower side. Prepare,
And the shape of the aspect in which the upper side of the space portion is opened,
The second and third rotating members 50 and 60 are arranged in the space, and between the motor for rotating the first rotating member 40 and the first rotating member, Between the motor for rotating the second rotating member 50 and the second rotating member, and between the motor for rotating the third rotating member 60 and the third rotating member, respectively. An apparatus for bending a long axis of a work material, characterized by comprising a speed reduction mechanism.