JPH0818081B2 - Sheet member twist bending machine - Google Patents

Description

The present invention relates to a flexible flat cable, a thin metal plate, a cardboard or the like, which is formed into at least a bifurcated sheet member by twisting it into a predetermined shape. The present invention relates to the structure of an apparatus for molding.

[Problems to be Solved by Conventional Techniques and Inventions]

When electrically connecting electrical components used for communication equipment and OA equipment to each other with a flat cable, for example, the connector portion of both electrical components, the end portion of the flat cable,
Work such as bonding and inserting via a conductive adhesive material is performed.

In this case, when the mounting surfaces of the connector portion of one electrical component and the connector portion of the other electrical component are not parallel to each other and the orientation of the free end of the connector portion is different (for example, one connector portion is When facing the (+ X) direction on the XY plane and the other connector portion heading in the (-Z) direction on the YZ plane), each terminal portion of the flat cable is connected to the connector portion. Must be twisted so that they are parallel to each other. That is, it is necessary to deform the flat surfaces of both end portions with respect to the wide flat surface in the middle of the flat cable.

In addition, one connector part in one electrical component and two connector parts in the other electrical component are connected by a flat cable having a Y-shape in plan view, and the two connectors in the other electrical component are connected. When the respective mounting surfaces of the section are not parallel to each other and the orientations of the free ends of the connector sections are different, the plane of one of the bifurcated ends of the flat cable and the plane of the other end of the flat cable are opposite to each other. It is necessary to twist and deform the flat cable so that the flat cables have different directions.

In such a case, the flat cable itself has flexibility, but if the twisting work is manually performed, the work efficiency varies depending on the skill level of the worker,
There is a problem that the efficiency of mass production of the same parts cannot be improved.

In addition, even when a reinforcing sheet member such as cardboard or a handle sheet member is attached in the manufacturing process of the packaging box,
There is a work of bonding both ends (bonding surfaces) of a U-shaped sheet member in a plan view to the mating member after twisting them so that their directions are different from each other. If this work is performed manually, There was a problem similar to the above.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide an apparatus for automating the twist-bending forming operation of a sheet member as described above.

[Means for solving the problem]

In order to achieve the above-mentioned object, the apparatus for twisting and bending a sheet member according to the present invention is configured such that one end portion of a sheet member formed in a bifurcated shape such as a U-shape or a V-shape in plan view is fixed. The removable hand part is detachably attached to the fixed hand part, while the movable hand part is detachably attached to the other end part of the sheet member in a substantially coplanar shape with the one end part. The movable hand portion is connected to the interlocking means, and the interlocking means is attached to the other hand of the sheet member with respect to the movable hand portion by the first attachment surface. On the other hand, the actuator is configured to be driven by one actuator so as to be appropriately changed in two directions by an appropriate angle.

〔Example〕

Next, an embodiment for twist-bending a flexible flat cable will be described. Reference numeral 1 is a frame body of the present apparatus, and the frame body 1 is placed on a table 2 via a movement drive means 3. There is. The frame 1 includes upper and lower plates 1a and 1b, front and back side plates 1c and 1d, and a lateral side plate 1e.

Reference numeral 4 is a position-fixed fixed hand portion arranged on the front surface side of the front side plate 1c of the frame 1, and reference numeral 5 is the fixed hand portion 4
And a supporting member 7 of an arm 6 to which the fixed hand portion 4 is attached is a movable hand portion having a U-shape in a side view, which is arranged at a distance (l) in a plan view from above and below a guide member 8 standing on the table 2. The support member 7 is movably mounted, and the actuator 9 can adjust the vertical position.

The movable hand unit 5 is connected to an interlocking device 10 described later,
The movable hand unit 5 is configured so that the movable hand unit 5 can be rotated bilaterally at the same time on the side of the fixed hand unit 4 to change the posture, and one rotary reactor 16 that rotates forward and backward, such as a step motor or a servomotor, interlocks with each other. Rotate 10 as will be described later.

Reference numeral 11 is a U-shaped flexible flat cable in plan view, and one of the bifurcated terminal portions 11a of the flat cable 11 is attached to the upper surface mounting portion 4a of the fixed hand portion 4. Removably attached, the other end 11
b is detachably attached to the upper surface attachment portion 5a of the movable hand portion 5, and in the embodiment, the communication passages 12 and 13 opening to the attachment portions 4a and 5a are connected to the vacuum pumps via the pipes 14 and 15, respectively. The end portions 11a and 11b of the flat cable, which are respectively connected to the mounting portions 4a and 5a (not shown), are respectively attracted irremovably by the vacuum force from the vacuum pump, and the vacuum is cut. Then, the respective terminal portions 11a, 11b are detached from the mounting portions 4a, 5a.

Next, the interlocking means 10 will be described. Reference numeral 17 is a drive pulley mounted on the shaft 16a of the rotary actuator 16,
These are provided on the back plate 1d side. Reference numeral 18 horizontally penetrates the front side plate 1c above the drive pulley 17, and the bearing 1
An endless belt 22 such as a timing belt is wound around the transmission pulley 21 fixed to the output shaft 18 and the drive pulley 17 so that the output shaft 18 can be rotated in the forward and reverse directions. Configure.

The output shaft 18 may be rotationally driven from the rotary actuator 16 via a gear group (not shown), or the rotary actuator 16 may be directly connected to the output shaft 18.

Reference numeral 23 is a sun pulley loosely fitted to the output shaft 18, and the sun pulley 23 is fixed to the back surface side of the front side plate 1c. Therefore, the sun pulley 23 is stopped even when the output shaft 18 rotates.

Reference numeral 24 is a rotating arm, and the base of the rotating arm 24 is fixed to the output shaft 18 on the front surface side of the front side plate 1c.

Reference numeral 25 denotes a planetary pulley attached to a transmission shaft 26 rotatably supported in parallel with the output shaft 18 at the tip of the rotating arm 24. The planetary pulley 25 and the sun pulley 23 have a timing belt or the like. The endless belt 27 is wound around, and the endless belt 27 is tensioned by the push wheel 29 at the tip of the arm 28 that rotates integrally with the output shaft 18. As a result, when the rotating arm 24 rotates integrally with the output shaft 18 in the direction of arrow A in FIG. 2, the planetary pulley 25 rotates in the A ′ direction via the endless belt 27, and the rotating arm 24 rotates. When 24 rotates in the direction of arrow B, the planetary pulley 25 rotates in the direction of arrow B '.

A rotary shaft 30 that extends orthogonally to the axis of the transmission shaft 26 and extends in parallel with the axis of the arm 6 of the fixed hand portion 4 is rotatably supported by the rotation arm 24. Bevel gear pair
It is transmitted to the rotary shaft 30 via 31, 32, and the base of the U-shaped movable hand portion 5 is fixed to the tip of the rotary shaft 30.

In the embodiment, by setting the diameter ratio between the sun pulley 23 and the planetary pulley 25 to 1: 2, when the rotating arm 24 rotates 90 degrees around the output shaft 18, the bevel gear pair 31,32 is used. The planetary pulley 25 turns 45 degrees, and the turning shaft 30 turns 45 around its axis.
It is configured to rotate once.

Further, reference numeral 33 is a rotary encoder attached to the output shaft 18, which detects the rotation direction and the rotation angle of the output shaft 18, and outputs a detection signal from the rotary encoder 33 to the control device 34. The input signal is input to turn on / off the operation signal to the rotary actuator 16. On the other hand, in order to adjust the installation height of the fixed hand portion 4 according to the thickness of the flat cable 11 and the degree of twist bending, the control device 34 is provided.
The actuator 9 can be adjusted by a signal from the control device 34, and the control device 34 can also control the vacuum operation of the fixed hand part 4 and the movable hand part 5.

With this configuration, as shown in FIGS. 5 (a) and 6, one terminal portion 11a of the flat cable 11 having a U-shape in plan view is placed on the mounting portion 4a of the fixed hand portion 4 and the other end portion is mounted. The terminal portion 11b is placed on the mounting portion 5a of the movable hand portion 5 (other manipulators may be used for these mounting operations), and a vacuum pump (not shown) connects the communication passages 12, 13 of the mounting portions 4a, 5a. When a vacuum is applied to each of the terminal portions, each terminal portion is attracted and fixed to the mounting portion.

Next, when the rotary actuator 16 is operated to rotate the output shaft 18 through the drive pulley 17, the endless belt 21 and the transmission pulley 22 by 90 degrees in the direction of arrow A in FIG. 2, it is fixed to one end of the output shaft 18. The rotating arm 24 and thus the planetary pulley 25 rotate downward to the position shown by the chain double-dashed line in FIGS. 2 and 3.

At this time, since the non-rotating sun pulley 23 and the planetary pulley 25 are wound and connected by the endless belt 27, the planetary pulley 25 is connected to the arrow A in FIG. 2 like the so-called planetary gear mechanism.
While revolving in the direction, it rotates in the direction of arrow A ', and the rotation angle is set to 45 degrees in this embodiment.

Therefore, while the free end side of the rotating arm 24 (the attachment side of the planetary pulley 25) is rotated downward, the rotating shaft 30 is rotated by the transmission shaft 26 connected to the planetary pulley 25 and the bevel gear pair 31, 32. The movable hand portion 5 having a U-shape attached to the tip of the rotating shaft 30 is rotated about the axis by 45 degrees, and the base portion 5b thereof is on the lower side (the mounting portion 5a is on the upper side). At the same time, the portion 5a is rotated in two axial directions so as to face the side surface of the mounting portion 4a of the fixed hand portion 4 (see FIGS. 5B and 5C).

Therefore, the terminal portion 11b of the flat cable 11 mounted on the upper surface (mounting surface) of the mounting portion 5a of the movable hand portion 5 is attached to the upper surface (mounting surface) of the mounting portion 4a of the fixed hand portion 4 at the start of work. It is on a plane parallel to the mounted terminal portion 11a, and as the movable hand portion 5 rotates, the terminal portion
With the free end side of 11b facing downward, the wide surface of the terminal portion 11b is twisted and bent so as to face the side surface of the fixed hand portion 4, and when the twist-bending forming work by this device is completed, As shown in FIG. 5 (c) and FIG. 7, in the flat cable 11, the wide surface of the other end 11b is rotated by 90 degrees with respect to the wide surface of the other end 11a. The wide surface of 11b is in a facing position such that it is inclined by 45 degrees with respect to the side surface of the fixed hand portion 4, and the other end portion
The free end of 11b is bent downward.

After the flat cable 11 is formed by twisting and bending in this way, the whole forming apparatus is moved to transfer the flat cable 11 to a connector part of a predetermined electric component or the flat cable 11 in the twisting and bending state. Both terminals 11
It suffices to transfer a and 11b to a predetermined location by using another vacuum suction type hand section or manipulator.

In the embodiment, the wide surface and the orientation of the other end portion 11b of the flat cable 11 with respect to the other end portion 11a is twisted by 45 degrees in a 90 degree upright state, which is twist bending. If the diameter ratio (reduction ratio) of the sun pulley 23 and the planetary pulley 25 is changed, or if the sun pulley 23 is configured to be rotated around the axis of the output shaft 18 by another drive actuator (not shown), the rotation shaft The rotation angle around the axis of 30 can be changed, and the twisting angle of the other terminal portion 11b can be arbitrarily set and finely adjusted.

Further, when the planetary pulley 25 is rotated in the direction opposite to the rotating direction of the rotating arm 24, in the present embodiment, the sun pulley 23 and the planetary pulley 25 are wound and connected by the endless belt 27. Unlike the planetary gear device, the sun gear does not need to be formed as an internal gear having a very large diameter, so that the device can be made compact.

Also, rather than the meshing of gears, the rotational force is transmitted from the drive pulley to the transmission pulley via the endless belt, and the rotational force is transmitted from the sun pulley to the planetary pulley. As a result, it is possible to reduce the error in the angle of twist bending.

The present invention is applicable to a twisting and bending work of a sheet member having a portion formed in at least a bifurcated shape in a plan view, such as a flat cable having a substantially Y shape in a plan view, or a cardboard cut out in a U shape in a plan view. It goes without saying that it is also applicable.

When the thickness of both end portions of the sheet member such as the flat cable is different, the actuator 9 may be operated so as to change and adjust the height position of the fixed hand portion, and the twist-bending deformation forming It is also possible to activate the actuator 9 later to carry out further deformation work of the sheet member.

Further, the fixed hand portion and the movable hand portion may be configured to be capable of gripping the end portion of the sheet member instead of the vacuum suction type as in the above embodiment.

[Operation and effect of the invention]

As described above, in the twisting and bending apparatus for a sheet member of the present invention, one end of the sheet member formed in a bifurcated shape such as a U-shape or a V-shape in plan view has a fixed hand portion for fixing the posture. On the other hand, the movable hand part for detachably mounting the other end portion of the sheet member in a substantially coplanar shape with the one end portion is appropriately separated laterally from the fixed hand portion. Are arranged in parallel with each other, and the movable hand portion is connected to the interlocking means, and the interlocking means is arranged such that the mounting surface of the other terminal portion of the sheet member with respect to the movable hand portion is opposite to the initial mounting surface. The actuator is configured to be driven by one actuator so as to appropriately change the angle in each direction.

In the present invention, if the fixed hand portion and the movable hand portion are first arranged in parallel, both end portions of the sheet member formed in a bifurcated shape such as a U-shape or a V-shape in a plan view are substantially flush with each other. Easy to put on. Then, the posture of the movable hand portion is changed via the interlocking means, and the adhesive surface of the terminal portion of the sheet member attached to the movable hand portion is changed in two directions with respect to the initial attachment surface by an appropriate angle. To do
When the seat member is twisted and deformed, the interlocking means 1
Since it is driven by only one actuator, there is an effect that drive control becomes extremely simple.

[Brief description of drawings]

The drawings show an embodiment of the present invention, FIG. 1 is a partially cutaway front view of the apparatus of the present invention, FIG. 2 is a sectional view taken along line II-II of FIG.
FIG. 3 is a sectional view taken along the line III-III in FIG. 1 and FIG.
The figure is a partially cutaway plan view, FIG. 5 (a), FIG. 5 (b) and FIG. 5 (c) are explanatory views of the action shown in plan view, and FIG. 6 is the state before the start of the twist bending work FIG. 7 is a perspective view of a main part when the twisting and bending work is completed. DESCRIPTION OF SYMBOLS 1 ... Frame, 4 ... Fixed hand part, 5 ... Movable hand part, 9 ... Actuator, 10 ... Interlocking drive means, 11 ...
… Flat cable, 11a, 11b …… Terminal part, 16 …… Rotary actuator, 17 …… Drive pulley, 18 …… Output shaft,
21 …… Transmission pulley, 22,27 …… Endless belt, 23 …… Sun pulley, 24 …… Pivoting arm, 25 …… Planetary pulley, 26 …… Transmission shaft, 30 …… Pivoting shaft, 31,32… … Bevel gear, 33 …… Rotary encoder, 34 …… Control device.

Claims (1)

[Claims] 1. A sheet member formed in a bifurcated shape such as a U-shape or a V-shape in a plan view is detachably attached to a fixed hand portion whose posture is fixed, while the sheet member is attached. The other hand of the mobile terminal is detachably mounted on the same side of the one terminal as to be detachable, and the movable hand is arranged in parallel with the side of the fixed hand with proper spacing. And the interlocking device is connected to the movable hand part so that the mounting surface of the other end portion of the sheet member with respect to the movable hand portion changes in two directions with respect to the initial mounting surface. An apparatus for twist-bending a sheet member, which is configured to be driven by an actuator.