JPH02274319A - Device for bending axis of long member to be worked - Google Patents

Abstract

PURPOSE:To bend a member to be worked which engages with an engaging part of a bending member in the direction crossing to the lengthwise direction by turning a 1st and a 2nd turning member through a turning device. CONSTITUTION:When a detecting device 2 measures the feed rate of a member X to be worked and it reaches a prescribed length, driving commands are given to driving motors 44, 56, 63 of each oscillatory rotation mechanism part 4, 5, 6 according to a desired bent shape of the member X to be worked through a controller 8. In the oscillatory rotation mechanism part 4, the 1st turning member 40 is turned by the operation of a driving motor 44 a desired angle round the axis of the member X to be worked. The 2nd turning member 50 is turned with this turning and torsional bending of the axis is performed by a bending member to member X to be worked. In the 2nd oscillatory rotation mechanism part 5, the 2nd turning member 50 is turned by the operation of the driving motor 56 a desired angle in the clockwise or counterclockwise direction. The axial direction of the member X to be worked can be bent by bending member of the turning member forcedly to the right or to the left.

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 clamp the material is simply provided rotatably around two orthogonal axes. In this method, the slide supporting the guide roller element is moved up and down and left and right, and the material is folded in a straining manner, which poses a problem in that accurate bending is difficult.

(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 shaft provided rotatably about a second shaft in a direction orthogonal to the first shaft, which is substantially parallel to the axis of the linear workpiece before bending.
a rotating member; and the first rotating member. a second rotating member rotatably supported by the first rotating member about a third axis in a direction perpendicular to the second axis; 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; The apparatus includes a plurality of rotational movement devices for respectively rotating the second rotational members, and a control device for controlling the operation of each rotational movement device.

(Function) In the above configuration, by rotating the first and second rotating members by the rotational movement device, the workpiece engaged with the engaging portion of the bending member is moved to cross the longitudinal direction. It can be bent in any direction.

Above 1. The bending of the workpiece by the second rotating member is a bending process by rotating the bending member about the axis in the direction perpendicular to the axis of the workpiece. It is possible to bend a workpiece without moving the second co-moving member left and right or up and down, and it is also possible to perform accurate 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 encoder that measures the supply plate (feeding material dimensions) by slidingly contacting the workpiece X, and the support device 3 that holds the workpiece X so that it can be inserted, the workpiece of the support device 3 is It consists of a bending device placed at the front in the material feeding direction (on the right side in FIG. 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 according to this embodiment is a first one for applying torsional bending to the axis of the workpiece X.
a second swinging rotation mechanism section 5 that bends the axis of the workpiece X to the left or right;
and a third swinging rotation mechanism section 6 that applies upward or downward bending to the axis.

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 edge 41 of the guide roller 71, so that the guide rollers 71 and 72 are rotatably provided. In addition, the first rotating member 40
has a rail portion 42 formed in a convex manner, and is supported by the body 7 by fitting the rail portion 42 into a concave groove 73 of the body 7. 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. A drive motor 44, which is an example of a motion device, and a rotating gear 45 connected by a timing belt or the like are disposed in mesh with each other.

The second swing rotation mechanism section 5 includes a second rotation member 50, and the second rotation member 50 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 similar to the first rotating member 40
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 40.
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 worm gear 57 .

As shown in FIG. 5, the third swinging rotation mechanism section 6 has an engaging section 60a through which the workpiece X can be inserted, and a third pivoting mechanism section 6 equipped with a bending member 60b consisting of a shoe, a shoe holder, etc. A member 60 is provided. 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. Further, this third rotating member 60 is provided with an auxiliary shoe 65 that projects 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. It is preferable that the tips 65a and 65b of the auxiliary shoes are set so as to extend to a position where they come 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 swinging 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 of the workpiece X and reaches a predetermined length, the control device 8 issues a drive command corresponding to the desired bending shape of the workpiece X to each swinging rotation mechanism section 4, 5.6 drive motor 44,56°63. In response to the command, the drive motor 44 in the first swinging rotation mechanism section 4 is operated, and the gear 45 moves the first rotation member 40 to the workpiece X.
Rotate by the desired angle around the axis. 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 rotates as shown in FIG. 4, the bending member 60b of the third rotating member 60 bends the axial direction of the workpiece X to the right or left. can be forcibly 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.

As can be understood from the above description, according to this embodiment, the workpiece can be bent so as to be twisted around the axis of the workpiece. However, if the workpiece is a round bar or tube, for example, there is no need to twist the workpiece around the axis, so if you use a special machine that targets the workpiece of a round bar or tube, , the first rotating member 40 described above is omitted,
The second moving member 50 can be configured to be directly attached to the body 7.

Effects of the Invention As can be understood from the above description of the embodiments, in short, in this invention, each rotating member is rotated by an actuating device to rotate the bending member in an appropriate direction, and the bending action is Since this method forcibly bends the workpiece that is engaged with the engaging part of the member, the bending principle is different from the conventional bending technique, and it is possible to achieve a more accurate bending angle than before. It can be bent.

[Brief explanation of drawings]

FIG. 1 is a side view of the axial line bending device according to the present invention, FIG. 2 is a front view of the same device, FIG. 3 is a plan view of the same device, and the fourth and fifth
The figure is an explanatory diagram of the operation of the device. X: Long workpiece, 3: Support device, 50: Rotating member, 60: Rotating member, 56.63: Drive motor.

Claims (1)

[Claims] A long workpiece comprising a support device that supports the workpiece by allowing movement in the longitudinal direction of the long workpiece, and a bending device that bends the part of the workpiece that protrudes from the support device. The bending device is an axial bending device for a long workpiece, and the bending device is perpendicular to a first axis that is substantially parallel to the axis of the linear workpiece X before bending supported by the support device 3. A first rotating member 50 is provided to be rotatable about a second axis in the direction of First rotating member 50
A second rotating member 60 is rotatably supported on the second rotating member 60, and a portion of the second rotating member 60 that protrudes from the support device 3 is connected to the workpiece as appropriate in order to bend the workpiece. a bending member having an engaging portion to be engaged; a plurality of rotational movement devices for respectively rotating the first and second rotational members;
a control device 8 for controlling the operation of each rotational motion device;
An axial bending device for a long workpiece, comprising: