JPS62158530A - Axial line bending device for long-sized material to be worked - Google Patents

Abstract

PURPOSE:To perform a correct axial line bending by controlling by driving the base stand rockable in a see-saw state, the rising frame rockable and rotatable in the horizontal direction and the mouthpiece device rockable and rotatable in the vertical direction based on the feeding command of the material to be worked. CONSTITUTION:A control device 8 places the driving command corresponding to the necessary bending shape, when a detecting device 2 detects the prescribed feeding of the material X to be worked. A see-saw like rocking and rotating mechanism part 4 applies the twisting in the axial line direction on the material X to be worked by rocking the base stand 40 to the right and left. The rocking and rotating mechanism part 5 in the horizontal direction bends the axial line direction of the material X to be worked to the right and left by rotating the rising frame 50 in clockwise or counter clock wise direction. The rocking and rotating mechanism part 6 in the vertical direction performs the axial line bending of the material X to be worked up and down by tilting the mouthpiece device 60 to the upper and lower. Said control is performed independently or synchronously respectively. In this way the accurate axial line bending of a long sized work is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to the process of bending a long metal material, which has been previously bent 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.

Conventional technology Conventionally, in this type of axial bending device, a guide roll element for material bending, which forms a gap for material insertion using a plurality of rolls, is attached to an outer frame using a universal joint mechanism, and the outer frame is attached to a rotating plate. It is fixed and supported by a trochanter that is pivotally supported on the slide plate, and is attached to the slide support frame so that it can move up and down using a ball screw mechanism that drives the slide plate with a motor, and a ball screw mechanism that drives the slide support frame to the machine frame with a motor. It is known that a linear material that is inserted from a guide roll element for material delivery positioning to a guide roll element for bending can be axially bent in multiple dimensions by being mounted so as to be movable in the left and right directions. -43165).

Problems to be Solved by the Invention However, in this axial bending device, when the material passes through the bending guide roll element, the bending guide roll element is supported by a gyro-type universal joint mechanism. If the axial shape cannot be formed accurately, and the workpiece is thin and does not have high rigidity, there is a risk that the workpiece will be bent. In addition, not only is the device itself large and the manufacturing cost is high, but the slide support frame is equipped with a single rotation plate mechanism for the slide plate, a universal joint mechanism, a ball screw mechanism for vertically moving the slide plate, and a motor. Not only the frame but also the slide plate is very heavy, and it is difficult to control accurately due to the influence of inertia when starting and stopping vertically, horizontally, and horizontally.

Means for Solving the Problems In the axial bending device for long workpieces according to the present invention, the plate surface of the base, which can swing and rotate horizontally like a seesaw, is horizontally bent about the vertical axis. A stand-up frame is provided which can be oscillated and rotated in a direction, and a mouthpiece device through which a workpiece is inserted is provided in an upright plate portion of the stand-up frame that can be rotated 11 degrees in a vertical direction about a horizontal axis. , the three stand-up frame devices are configured so that they can be driven independently or in synchronization with each other in response to a workpiece feed amount command from a detection device.

Function: This axial bending device for long workpieces bends the workpiece along its axis by oscillating and rotating all the mechanical parts, so it can easily respond to the deflection direction of the workpiece and achieve accurate bending. You will be able to create bent shapes.

Embodiments will now be described with reference to the accompanying drawings.

This bending device is used to manufacture door sashes, moldings, etc. for vehicles by bending metal strips such as stainless steel into a predetermined cross-sectional shape, and then bending the continuous longitudinal direction, that is, the axial direction, into a two-dimensional shape. It is applied to bending in three-dimensional directions. The axis bending device is
As shown in Fig. 1, there is a feeding device 1 for the workpiece X, which is composed of a group of pinch rolls that continuously or intermittently feed the workpiece X, and a rotary that measures the amount of supply by sliding on the workpiece Following a detection device 2 such as an encoder and a support device 3 that holds the workpiece X so that it can be inserted therethrough, it is disposed in front of the support device 3 in the direction in which the workpiece is fed. The support device 3 has a continuous insertion opening for the workpiece in the center, 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 axis bending device includes a seesaw-shaped rocking rotation mechanism section 4 that twists and bends the axis of the workpiece X, and bends the axis of the workpiece X to the left or right. It is composed of a horizontal swinging and rotating mechanism section 5 and a vertically swinging and rotating mechanism section 6 that applies upward or downward bending to the axis of the workpiece X.

The seesaw-shaped rocking rotation mechanism includes a base 40. The base 40 has a semi-circular guide edge 41 centered on the machining axis of the workpiece X on the lower side.
The guide rollers 71 and 72, which are bearing-mounted on the fuselage 7, are placed in sliding contact with the fuselage 7, thereby being press-locked. Further, the base 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 base 40 on a concentric circle with the guide edge 41, and a drive motor 44 fixed to the fuselage 7 is connected to the recess 43 in the recess 43. Gears 45 that are connected by a timing belt or the like and rotate are arranged in mesh with each other.

The horizontal swinging rotation mechanism section 5 includes a rising frame 50, and the rising frame 50 is connected to 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 rising frame 50 has a vertical axis 5
4, it is rotatably supported on a plate surface of a base 4o. Further, gear teeth 55 are formed in a certain shape on the semicircular arc side of the lower horizontal plate portion 51, and the gear teeth 55 are attached to the base 4.
A gear 57 that is connected to and rotates by a timing belt or the like is arranged to mesh with a drive motor 56 attached to the drive motor 56 .

As shown in FIG. 5, the vertical swing/rotation mechanism 6 is equipped with a cap device 6o consisting of a shoe and a shoe holder, and has an opening through which the workpiece X can be inserted. This cap device 60
is supported by a horizontal shaft 61 on the upright plate portion 52 of the stand-up frame 50 .

A worm wheel 62 is attached to the tip end of the horizontal shaft 61, and the worm wheel 62 is connected to a drive motor 63 disposed on the upper horizontal plate portion 53 of the rising frame 50 by a timing belt or the like. Moving worm 64
are arranged in mesh. Further, this mouthpiece device 6o 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 abbreviated shape as shown in FIG. The tip 65a of
65b is preferably set so as to protrude to a position where it slightly interferes with the workpiece X when the workpiece X is in a straight line state.

The drive motor 44 of each of these swing rotation mechanism parts 4, 5.6.
Reversible servo motors are used as the servo motors 56 and 63, and each motor is connected to the detection device 2 through the controller 8, so that the base 40. The rising frame 50 and the base device 60 are configured to be driven independently or in synchronization with each other.

In the axial bending device for long workpieces configured as described above, when the detection device 2 measures the feed amount of the workpiece X and reaches a predetermined length, the controller 8 sends the Swinging rotation mechanism parts 4, 5.6 send drive commands according to the bending shape.
The drive motor 44°56.63. In response to the command, the seesaw-shaped swinging rotation mechanism section 4 drives the drive motor 4.
4 is activated, the base 40 is swung by a desired angle to the right or left with respect to the feeding direction of the workpiece X by the gear 45. Along with this rocking, the stand-up frame 50 and the base device 60 as a whole tilt to the right or left, so the support device 3
It becomes possible to apply torsional bending of the axis to the workpiece material fed linearly from the center. Further, when the drive motor 56 operates in the horizontal swing rotation mechanism section 5, the stand-up frame 50 is rotated clockwise or counterclockwise at a desired angle about the vertical shaft 54. As the mouthpiece device 60 rotates as shown in FIG. 4, the workpiece
The axis can be bent to the right or left. Furthermore, in the vertical swing rotation mechanism, the drive motor 63
When operated, only the cap device 6o tilts and rotates upward or downward at a desired angle about the horizontal axis 61. With the rotation, the workpiece X passing through the opening of the mouthpiece device 60 is bent upward or downward along its axis.

When these axial bends are performed in combination, a workpiece of a certain length can be bent in multiple dimensions as shown in FIG. When aiming horizontally or vertically, it is necessary to provide a small gap between the die device 60 and the workpiece X inserted therein, but due to the influence of this gap at the time of starting bending, the bending drive command There is a slight time delay between the process and the actual bending process, which causes errors in each rotation angle and axis bending shape.
Even at the same rotation angle, the auxiliary shoe 65 protruding forward from the auxiliary shoe 65 is located at a position where the amount of deviation is large and interferes with the workpiece X, so that it acts to prevent errors from occurring. For the bending operation, the workpiece can be bent into a desired axial shape by dividing the entire length of the workpiece of a predetermined length into imaginary segments and operating each segment individually or in combination. In addition,
The shoe and the auxiliary shoe are not limited to those that make sliding contact, but may be rollers that rotate while contacting the workpiece.

Effects of the Invention As described above, according to the glaze wire bending device for a long workpiece according to the present invention, since the swinging motion required for axial bending in each direction is made possible by rotational drive, the deflection can be easily controlled. By being able to easily adapt, it becomes possible to perform accurate axial bending.

[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, 1: Feeding device, 2: Detecting device, 3
: Support device, 40: Base, 5o: Standing frame, 52
: Upright plate part, 54: Vertical shaft, 60: Base device, 65: Auxiliary shoe, 43.45.55.57.62, 64: Gear mechanism, 44,56° 63: Drive motor.

Claims (3)

[Claims] (1) Following a feeding device that supplies a long workpiece, a detection device that measures the supply amount of the workpiece, and a support device that holds the workpiece so that it can be inserted, This is an axial bending device for long workpieces that is placed at the front in the workpiece feed direction, and the plate surface of the base, which can swing and rotate horizontally like a seesaw, swings horizontally around a vertical axis. A rotatable stand-up frame is provided, and a die device through which a workpiece is inserted, which is capable of swinging and rotating in the vertical direction about a horizontal axis, is provided on the upright plate portion of the stand-up frame, and these bases, the stand-up frame, 1. An axial bending device for a long workpiece, characterized in that the die devices are configured to be driven independently or in synchronization with each other in response to a workpiece feed rate command from a detection device. (2) The axis bending device according to claim 1, wherein the base, the upright frame, and the base device are configured to be operable by a gear mechanism rotated by a drive motor. (3) The axial bending device according to claim 1, wherein the die device includes an auxiliary shoe that projects forward in the feeding direction of the workpiece and interferes with the workpiece.