JPH03133521A - Axial line bending device for long sized material to be worked - Google Patents

Abstract

PURPOSE:To bend the work to the bending angle of accuracy by rotating the 2nd and the 3rd rotary members with the operating device, thereby rotating the bend operating member to the appropriate direction and forcedly executing the bending work of the material to be worked engaged to the engage part of this bend operating members. CONSTITUTION:The material X to be worked engaged to the engage part of the bend operating member is twisted around the axial line of the material X to be worked by rotating the 1st rotary member 40 with the rotation operating device. And by rotating the 2nd and the 3rd rotary members 50, 60, the material to be worked is bent to the crossing direction against the longitudinal direction. The bending work of the material to be worked is executed without moving the 1st rotary member in left and right, and upward and downward, because the bending work of the material to be worked by the 2nd and the 3rd rotary members is performed by rotating the bend operating member around the axial center of the direction orthognally crossed to the axial line of the material to be worked. Therefore, while the material to be worked is twisted by rotating the 1st rotary member, the bending work is executed.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention involves bending a long metal material, which has been previously formed into a predetermined cross-sectional shape, in multiple dimensions when manufacturing door sashes, moldings, etc. This invention relates to an axial bending device for long workpieces.

(Prior art) Conventionally, as this type of axis bending device, for example,
This is a configuration as shown in Publication No. 8-43165 (hereinafter referred to as a precedent example).

(Problems to be Solved by the Invention) In the prior art shown in the prior art, the guide roller element supporting the roller that can freely pinch the material is simply provided rotatably around two orthogonal axes. In this method, a slide supporting a guide roller element is moved vertically and horizontally to bend the material in a straining manner, and there is a problem in that it is difficult to bend the material accurately.

(Means for Solving the Problems) In order to solve the conventional problems as described above, the present invention provides a support device that supports a long workpiece by allowing movement in the longitudinal direction of the workpiece. and a bending device for bending a portion of the workpiece protruding from the support device, the bending device being supported by the support device. A first rotary member rotatably supported on the machine body about a first axis substantially parallel to the axis of the linear workpiece before bending; a second rotating member rotatably supported by the first rotating member about a second axis in a direction in which the first rotating member rotates; a third rotating member rotatably supported by the second rotating member about a third axis in a direction perpendicular to the second axis; and a third rotating member provided on the third rotating member; a bending member having an engaging portion that appropriately engages with the workpiece to bend the workpiece at the portion protruding from the support device; Second. The third rotating member is provided with a plurality of rotational movement devices for respectively rotating the third rotational member, and a control device for controlling the operation of each rotational movement device.

(Function) In the above configuration, by rotating the first rotating member by the rotational movement device, the workpiece engaged with the engagement portion of the bending member is twisted around the axis of the workpiece. Can be done. Also, the second. By rotating the third rotating member, the workpiece can be bent in a direction intersecting the longitudinal direction.

No. 2 above. The bending process of the workpiece by the third rotating member is a bending process by rotating the bending member around the axis in the direction orthogonal to the axis of the workpiece. It is possible to bend a workpiece without moving the movable member left and right or up and down. Therefore, for example, it is easy to bend the workpiece while twisting it by rotating the first rotating member, and it is possible to perform accurate twisting and bending.

(Example) Hereinafter, an example of the present invention will be described in detail using the drawings.

The bending device according to this embodiment is used to form a metal strip material such as stainless steel into a predetermined cross-sectional shape in advance, and then bend the material in the continuous longitudinal direction, that is, the axis, when manufacturing door sashes and moldings for vehicles. It is applied to bending in two-dimensional or three-dimensional directions.

As shown in FIG. 1, the axis bending device includes a feeding device 1 for a workpiece X, which is composed of a group of pinch rolls that feeds a long workpiece X continuously or intermittently in the longitudinal direction; Following the detection device 2, such as a rotary enhancer, which measures the size of the feed material by sliding on the workpiece X, and the support device 3, which holds the workpiece X so that it can be inserted therethrough, the direction of feed of the workpiece of the support device 3 is continued. It consists of a bending device placed at the front (on the right side in Figure 1).

The support device 3 has an insertion opening that allows movement of the workpiece X only in the longitudinal direction, and a core that fits inside the workpiece is preferably provided in the opening near the exit.

As shown in FIGS. 2 and 3, the bending device includes a first oscillating rotation mechanism 4 for torsionally bending the axis of the workpiece It includes a second swinging rotation mechanism section 5 that applies bending, and a third swinging rotation mechanism section 6 that applies upward or downward bending 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 semicircular guide edge 4 centered on the processing axis (first axis) of the workpiece X on the lower side.
1, and guide rollers 71 and 72, which are bearing-mounted on the body 7, are disposed in sliding contact with the guide edges 41 of the guide rollers 71 and 72, so that the guide rollers 71 and 72 are rotatably provided. Further, the first rotating member 40 includes a rail portion 42 formed in a convex manner, and this rail portion 4
2 into the concave groove 73 of the fuselage 7.
is supported by A semi-circular recess 43 with gear teeth formed on the inner surface is provided on the side of the first rotating member 40 and is concentric with the guide edge 41. Drive motor 4 as an example of a motion device
4 and a gear 45 which is interlocked and connected by a timing belt or the like and rotates while being decelerated.

The second swing rotation mechanism section 5 includes a second rotation member 5o, and the second rotation member 5o includes a lower horizontal plate section 51. Upright plate portion 52. The upper horizontal plate portion 53 is formed to have a substantially Z-shape. This second rotating member 50 is the first rotating member 4o
It is rotatably provided around a second axis perpendicular to the rotation axis (first axis) of the
In this embodiment, the first rotating member 4
It is rotatably supported by a bearing on the plate surface of 0. Furthermore, gear teeth 55 are provided on the semicircular side sides of the lower horizontal plate portion 51, and the gear teeth 55 are provided with the first rotating member 4o.
A drive motor 56 as an example of a rotating motion device attached to
A worm gear 57 that is connected to and rotates via a timing belt or the like is arranged in mesh with the second rotating member 5o.
is rotated by a motor 56 via a speed reduction mechanism.

As shown in FIG. 5, the third swinging rotation mechanism section 6 is a third rotation member having a bending member 60b such as a shoe holder or the like having an engaging portion 60a through which the workpiece X can be inserted. It is equipped with 60. This third rotating member 60 is connected to the first rotating member 60. Horizontal axis 61 as a third axis perpendicular to the second axis
The second rotary member 50 is pivoted and supported by the upright plate portion 52 of the second rotating member 50 via. The horizontal shaft 61 is provided in the same plane as the vertical shaft 54, and a worm wheel 6 is provided on the tip end side of the horizontal shaft 61.
2 is attached to the worm wheel 62, and the worm wheel 62 is connected to a drive motor 63, which is an example of a rotation actuating device, and which is arranged on the upper horizontal plate portion 53 of the second rotating member 50 by a timing belt or the like, and rotates. 64 are arranged in mesh with each other, and the third rotating member 63 is rotated by the motor 63 via a deceleration mechanism. In addition, this third rotating member 6
0 is provided with an auxiliary shoe 65 that protrudes forward in the feeding direction of the workpiece X, and the auxiliary shoe 65 has a front end formed in an oval shape as shown in FIG. 65b is preferably set so as to extend to a position where it comes into sliding contact with the workpiece X when the workpiece X is in a straight line state.

Drive motor 44.56.63 as an example of a rotational movement device for rotating each of these oscillating rotation mechanism parts 4.5.6
In this case, a reversible servo motor is used, and each motor is connected to the detection device 2 through a suitable control device 8, such as a computer or an NC control device, so that each motor responds to a command corresponding to the position detection of the detection device 2. first
．． The second and third rotating members 40, 50, and 60 are configured to be driven independently or in synchronization with each other.

In the axial bending device for long workpieces as configured above,
When the detection device 2 measures the feed amount (material size) of the workpiece X and reaches a predetermined length, the control device 8
A drive command corresponding to the desired bending shape is sent to each swinging rotation mechanism section 4.
．． 5.6 drive motors 44, 56.63. In response to the command, the first swinging rotation mechanism section 4 operates the drive motor 44, so that the gear 45 rotates the first rotation member 40.
is rotated by a desired angle around the axis of the workpiece X.

Along with this rotation, the second rotation member 50 and the third rotation member 60 are rotated as a whole, so that the workpiece X linearly fed from the support device 3 is bent by the bending member 60b. This causes the axis to be twisted.

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

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

When these axial bends are performed in combination, a workpiece of a fixed length can be bent in multiple dimensions as shown in FIG.

By the way, the present invention is not limited to the above-described embodiments, but can be implemented in other embodiments by making appropriate changes. That is, for example, the body can be configured to be movable vertically and horizontally, similar to the slide in the previous example described above. In this case, the movement of the aircraft up and down, left and right, and the third. It is desirable that the rotation of the second rotation member be operated in conjunction with the rotation of the second rotation member.

(Effects of the Invention) As can be understood from the above description of the embodiments, in short, in this invention, the second. By rotating the third rotating member by the actuating device, the bending member is rotated in an appropriate direction, and the workpiece engaged with the engaging portion of the bending member is forcibly bent. Therefore, the bending principle is different from the conventional technique of iron bending, and the bending process can be performed to a more accurate bending angle than the conventional technique.

[Brief explanation of the drawing]

FIG. 1 is a side view of the axial bending device according to the present invention, X: long workpieces, 3: support device, 40: first rotating member, 50: second rotating member, 60: third rotating member, 44° : Drive motor.

Claims (3)

[Claims] (1) Equipped with a support device that supports a long workpiece by allowing movement in the longitudinal direction of the workpiece, and a bending device that bends the portion of the workpiece that protrudes from the support device. The bending device has a first axis substantially parallel to the axis of the linear workpiece X before bending, which is supported by the support device 3. A first rotating member 40 rotatably supported by the body 7 about the center, and a first rotating member 40 about a second axis in a direction orthogonal to the first axis. A second rotating member 50 rotatably supported, and a second rotating member 5 centered on a third axis in a direction orthogonal to the first and second axes.
A third rotating member 60 rotatably supported at a bending member having an engaging portion that engages with the bending member; a plurality of rotational movement devices for respectively rotating the first, second, and third rotational members; and controlling the operation of each rotational movement device. A control device 8 for bending the axis of a long workpiece. (2) Equipped with a support device that supports a long workpiece by allowing movement in the longitudinal direction of the workpiece, and a bending device that bends the portion of the workpiece that protrudes from the support device. The bending device has a first axis substantially parallel to the axis of the linear workpiece X before bending, which is supported by the support device 3. A first rotating member 40 rotatably supported by the body 7 about the center, and a first rotating member 40 about a second axis in a direction orthogonal to the first axis. A second rotating member 50 rotatably supported, and a second rotating member 5 centered on a third axis in a direction orthogonal to the first and second axes.
A third rotating member 60 rotatably supported at a bending member having an engaging portion that engages with the bending member; a plurality of rotational movement devices for respectively rotating the first, second, and third rotational members; and controlling the operation of each rotational movement device. A first rotational movement device for rotating the first rotational member 40 is attached to the body 7, and a control device 8 for rotating the second rotational member 50. A second rotational movement device for rotating the third rotational member 60 is attached to the first rotational member 40, and a third rotational movement device for rotating the third rotational member 60 is attached to the second rotational movement device. A device for axially bending a long workpiece, characterized in that it is attached to a member 50. (3) Equipped with a support device that supports a long workpiece by allowing movement in the longitudinal direction of the workpiece, and a bending device that bends the portion of the workpiece that protrudes from the support device. The bending device has a first axis substantially parallel to the axis of the linear workpiece X before bending, which is supported by the support device 3. A first rotating member 40 rotatably supported by the body 7 about the center, and a first rotating member 40 about a second axis in a direction orthogonal to the first axis. A second rotating member 50 rotatably supported, and a second rotating member 5 centered on a third axis in a direction orthogonal to the first and second axes.
A third rotating member 60 rotatably supported at a bending member having an engaging portion that engages with the bending member; a plurality of rotational movement devices for respectively rotating the first, second, and third rotational members; and controlling the operation of each rotational movement device. and a control device 8 for rotating the second rotating member 50, between the motor for rotating the first rotating member 40 and the first rotating member. A deceleration mechanism is provided between the motor for rotating the third rotating member 60 and the second rotating member, and between the motor for rotating the third rotating member 60 and the third rotating member, respectively. Axial bending device for long workpieces.