Bending device and bending method

Abstract

The present disclosure provides a bending device and a bending method. The bending device includes: a first fixing member, used to fix the first part of the part to be bent; a second fixing member, used to fix the second part of the part to be bent; a flip driving member and a control device, the flip driving member is connected to the second fixing member and the control device to drive the second fixing member to flip around the first direction under the control of the control device to bend the second part relative to the first part; a driving device, connected to the control device and the first fixing member and / or the flip driving member to drive the first fixing member to move and / or drive the second fixing member and the flip driving member to move during the bending process under the control of the control device, so that the bending part of the second part connected to the first part or the bending part of the first part connected to the second part can always be in an arc shape. The bending device and the bending method provided by the present disclosure can flip the bending part in an arc shape in real time, avoiding the problem of creases or dead bends.

Description

Technical Field

[0001] The present invention relates to the field of bending, and in particular to a bending device and a bending method. Background Art

[0002] During the production process of foldable screens, the screen body (such as LCD or OLED) and the flexible printed circuit board (FPC) are connected, and the flexible printed circuit board needs to be folded to the back of the screen body. The traditional bending method can easily cause creases or dead folds at the connection point (bending part) between the flexible printed circuit board and the screen body, causing internal components of the bending part to break. Summary of the invention

[0003] The purpose of the present invention is to overcome the problem in the prior art that the bending portion is prone to creases or dead bends, and to provide a bending device that enables the bending portion to be folded in a circular arc in real time during the bending process, thereby avoiding the problem of creases or dead bends.

[0004] Another object of the present disclosure is to provide a bending method.

[0005] In order to achieve the above-mentioned objectives, the present disclosure provides a bending device on the one hand, including: a first fixing member, used to fix a first part of a workpiece to be bent; a second fixing member, used to fix a second part of the workpiece to be bent; a flipping driving member and a control device, wherein the flipping driving member is connected to the second fixing member and the control device to drive the second fixing member to flip around a first direction under the control of the control device to bend the second part relative to the first part; and a driving device, which is connected to the control device and the first fixing member and / or the flipping driving member and can drive the first fixing member to move and / or drive the second fixing member and the flipping driving member to move during the bending process under the control of the control device, so that the bent portion of the second part connected to the first part or the bent portion of the first part connected to the second part can always be in an arc shape.

[0006] Preferably, the driving device includes: a first driving member, connected to the first fixing member so as to be able to drive the first fixing member to move along a second direction perpendicular to the first direction; and a second driving member, the flip driving member being arranged at the driving end of the second driving member so that the second driving member can drive the second fixing member and the flip driving member to move along a third direction perpendicular to the first direction and the second direction.

[0007] Preferably, the driving device includes: a third driving member, which is arranged at the driving end of the first driving member and is connected to the first fixing member so as to be able to drive the first fixing member to move along the first direction under the control of the control device; and / or a fourth driving member, which is arranged at the driving end of the first driving member and is connected to the first fixing member so as to be able to drive the first fixing member to rotate around the third direction under the control of the control device.

[0008] Preferably, the bending equipment includes a detection device, which is connected to the control device. The detection device is used to detect the position of the first part placed on the first fixing member and feed back the detection result to the control device. The control device controls the driving device to drive the first fixing member to move according to the detection result.

[0009] Preferably, the first fixing member comprises: a supporting platform, on which a plurality of through holes are arranged; and a plurality of suction cups, which are respectively and correspondingly arranged in the plurality of through holes, and the adsorption surfaces of the suction cups are flush with the supporting surface of the supporting platform.

[0010] Preferably, a stopper is provided on the first fixing member, and the stopper includes a first stopper and a second stopper respectively arranged along directions perpendicular to each other, the first stopper is used to position a first side of the first part, and the second stopper is used to position a second side of the first part perpendicular to the first side.

[0011] The second aspect of the present disclosure provides a bending method, comprising: fixing a first part of a workpiece to be bent with a first fixing member; fixing a second part of the workpiece to be bent with a second fixing member; controlling a flip driving member to drive the second fixing member to rotate around a first direction to bend the second part relative to the first part, and during the bending process controlling a driving device to drive the first fixing member to move and / or drive the second fixing member and the flip driving member to move, so that the bent portion of the second part connected to the first part or the first part connected to the second part can always be in an arc shape.

[0012] Preferably, the driving device includes a first driving member and a second driving member, the first driving member is connected to the first fixed member, and the flip driving member is arranged at the driving end of the second driving member, and the bending method includes: controlling the first driving member to drive the first fixed member to move along a second direction perpendicular to the first direction during the bending process; and controlling the second driving member to drive the second fixed member and the flip driving member to move along a third direction perpendicular to the first direction and the second direction during the bending process.

[0013] Preferably, the driving device includes: a third driving member, which is arranged at the driving end of the first driving member, and the bending method includes: before fixing the second part, controlling the third driving member to drive the first fixing member to move along the first direction; and / or a fourth driving member, which is arranged at the driving end of the first driving member, and the bending method includes: before fixing the second part, controlling the fourth driving member to drive the first fixing member to rotate around the third direction.

[0014] Preferably, the bending method comprises: before fixing the second part, using a detection device to detect the position of the first part placed on the first fixing member and controlling the driving device to drive the first fixing member to move according to the detection result of the detection device.

[0015] In the above technical scheme, since the control device can simultaneously control the drive device to drive the first fixed member to move and / or drive the second fixed member and the flipping drive member to move during the process of controlling the flipping drive member to flip around the first direction to bend the second part of the part to be bent relative to the first part of the part to be bent, the bending portion of the second part connected to the first part or the first part connected to the second part can always be in an arc shape, that is, the bending portion can be folded in an arc in real time during the bending process, thereby avoiding the problem of creases or dead folds and improving the product qualification rate.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the disclosed embodiments. When appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

[0018] Figure 1 It is a schematic diagram of the bending process of the part to be bent;

[0019] Figure 2 It is a front view of the bending device according to the preferred embodiment of the present disclosure;

[0020] Figure 3 A top view of a bending device according to a preferred embodiment of the present disclosure;

[0021] Figure 4 This is the bending principle diagram.

[0022] Reference numerals:

[0023] 100-part to be bent; 101-first part; 102-second part; bending part t;

[0024] Y-first direction; X-second direction; Z-third direction;

[0025] 1-first fixing member; 11-supporting platform; 12-suction cup; 13-block; 131-first block; 132-second block; 2-second fixing member; 3-flip driving member; 31-rotating disk; 32-flip motor; 33-mounting seat; 34-second rotating platform; 35-flip platform; 41-first driving member; 42-second driving member; 421-lifting fixed seat; H-slide rail; K-slider; 43-third driving member; 44-fourth driving member; 441-rotating motor; 442-first rotating platform; 443-rotating plate; 444-fixed seat; 5-bottom plate. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, the present disclosure is described in detail below in conjunction with the drawings and specific implementation methods. The embodiments of the present disclosure are further described in detail below in conjunction with the drawings and specific implementation methods, but are not intended to limit the present disclosure.

[0027] The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other device without an intermediate device, or may not be directly connected to the other device but have an intermediate device.

[0029] All terms (including technical terms or scientific terms) used in the present disclosure have the same meanings as those understood by ordinary technicians in the field to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0030] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0031] The present disclosure provides a bending device, such as Figure 1-Figure 3 As shown, the bending device includes a first fixing member 1, a second fixing member 2, a flip driving member 3, a control device and a driving device. Specifically, the first fixing member 1 is used to fix the first part 101 of the part 100 to be bent, the second fixing member 2 is used to fix the second part 102 of the part 100 to be bent, the flip driving member 3 is connected to the second fixing member 2 and the control device to drive the second fixing member 2 to flip around the first direction Y under the control of the control device to bend the second part 102 relative to the first part 101, and the driving device is connected to the control device and the first fixing member 1 and / or the flip driving member 3 and can drive the first fixing member 1 to move and / or drive the second fixing member 2 and the flip driving member 3 to move during the bending process under the control of the control device, so that the bending portion t of the second part 102 connected to the first part 101 or the first part 101 connected to the second part 102 can always be in an arc shape. In other words, the bending portion t belongs to either the second part 102 or the first part 101. Of course, when conditions permit, the bending portion t may also exist independently, that is, the bending portion t belongs neither to the first portion 101 nor to the second portion 102 .

[0032] The first fixing member 1 and the second fixing member 2 are preferably adsorption plates, which are used to adsorb and fix the first part 101 and the second part 102 of the part to be bent 100, respectively. The second fixing member 2 is connected to the driving end of the flip driving member 3 to flip around the first direction Y under the drive of the flip driving member 3. Figure 2 and Figure 3As shown, the flip driving member 3 may preferably include a rotating disk 31, a flip motor 32, a mounting seat 33, a second rotating platform 34 and a flip platform 35, the second fixing member 2 may be arranged on the flip platform 35, the flip platform 35 is eccentrically arranged on the rotating disk 31, the rotating disk 31 is arranged at the driving end of the second rotating platform 34, the second rotating platform 34 is arranged on the mounting seat 33, and the mounting seat 33 may be arranged at the driving end of the second driving member 42 to be described below. The flip motor 32 and the second rotating platform 34 are connected to be able to drive the second fixing member 2 to rotate around the first direction Y.

[0033] In the above technical scheme, since the control device can simultaneously control the drive device to drive the first fixing member 1 to move and / or drive the second fixing member 2 and the flipping drive member 3 to move during the process of controlling the flipping drive member 3 to flip around the first direction Y to bend the second part 102 of the workpiece to be bent relative to the first part 101 of the workpiece to be bent, the bending portion t of the second part 102 connected to the first part 101 or the first part 101 connected to the second part 102 can always be in an arc shape, that is, the bending portion can be folded in an arc in real time during the bending process, thereby avoiding the problem of creases or dead folds and improving the product qualification rate.

[0034] In some embodiments, the first portion 101 of the part to be bent 100 may include a screen body of a folding screen, such as an LCD or an OLED, and the second portion 102 of the part to be bent 100 may include a flexible printed circuit board (FPC). In this case, the bending portion t may belong to the second portion 102, such as Figure 1 As shown, in the initial position, the first part 101 and the second part 102 are located in the same horizontal plane. By planning the bending trajectory of the second part 102, the second part 102 is smoothly bent at an R angle from the initial position to a position above the first part 101. Since the bending portion t is folded in a circular arc in real time during the bending process, the connection position (i.e., the bending portion t) of the flexible circuit board (second part 102) and the screen body (first part 101) is avoided. The problem of creases or dead bends will not occur, and the internal components of the bending portion t will not be broken, which will cause the product to be scrapped.

[0035] In order to realize that the driving device drives the first fixing member 1 to move and / or drives the second fixing member 2 and the flip driving member 3 to move under the control of the control device so that the bending portion t can always be in an arc shape, as shown in FIG. Figure 2 and Figure 3As shown, preferably, the driving device includes a first driving member 41 and a second driving member 42, the first driving member 41 is connected to the first fixing member 1 so as to be able to drive the first fixing member 1 to move along the second direction X perpendicular to the first direction Y. Specifically, the first fixing member 1 is connected to the driving end of the first driving member 41, and the first driving member 41 preferably includes a motor and a screw module, and the motor can drive the screw module to drive the first fixing member 1 to move. The flip driving member 3 is arranged at the driving end of the second driving member 42 so that the second driving member 42 can drive the second fixing member 2 and the flip driving member 3 to move along the third direction Z perpendicular to the first direction Y and the second direction X. Among them, the second driving member 42 is arranged on the lifting fixing seat 421, the lifting fixing seat 421 is arranged on the bottom plate 5, the lifting fixing seat 421 can be provided with a slide rail H, the slider K is slidably arranged on the slide rail H, and the mounting seat 33 of the flip driving member 3 can be arranged on the driving end of the second driving member 42 and the slider K. At this time, the control device can be configured to control the flip driving member 3 to drive the second fixing member 2 to rotate around the first direction Y to bend the second part 102 relative to the first part 101 and during the bending process can simultaneously control the first driving member 41 to drive the first fixing member 1 to move along the second direction X and control the second driving member 42 to drive the second fixing member 2 and the flip driving member 3 to move along the third direction Z, so that the bending portion t can always be in an arc shape.

[0036] That is to say, during the bending process, the first part 101 can move along the second direction X, the second part 102 can move along the third direction Z, and the second part 102 can be flipped. Since the second part 102 of the part 100 to be bent is bent relative to the first part 101 around the first direction Y, the center of the arc-shaped bending portion t is located in the XZ plane. In order to keep the bending portion t in an arc shape during the bending process, the control device controls the first driving member 41 to drive the first fixing member 1 to move along the second direction X, so that the connection point C of the bending portion t and the first part 101 can be compensated to the X coordinate position of the center position O point in the second direction X, and the control device controls the second driving member 42 to drive the second fixing member 2 and the flip driving member 3 to move along the third direction Z, so that the connection point B of the bending portion t and the second part 102 can be compensated to the Z coordinate position of the center position O point in the third direction Z. In this way, by coordinating the real-time bending angle, moving the position of point C in the second direction X, and moving the position of point B in the third direction Z, it can be ensured that the bending portion t is always bent in an arc manner.

[0037] In order to ensure the accuracy of bending, the position of the second part 102 needs to be adjusted before fixing the second part 102. Since the second part 102 is connected to the first part 101, and the first part 101 can be fixed by the first fixing member 1, the position of the second part 102 can be adjusted by moving the first fixing member 1. Figure 2As shown, preferably, the driving device includes a third driving member 43, which is arranged at the driving end of the first driving member 41 and is connected to the first fixing member 1 so that it can drive the first fixing member 1 to move along the first direction Y under the control of the control device, thereby driving the second part 102 to move. Among them, the third driving member 43 and the above-mentioned first driving member 41 and second driving member 42 can adopt a driving structure of a motor and a screw module. Optionally, the driving device includes a fourth driving member 44, which is arranged at the driving end of the first driving member 41 and is connected to the first fixing member 1 so that it can drive the first fixing member 1 to rotate around a third direction Z under the control of the control device. Figure 2 As shown, the fourth driving member 44 may preferably include a rotating motor 441, a first rotating platform 442, a rotating plate 443 and a fixing seat 444. The first fixing member 1 may be arranged on the rotating plate 443, the rotating plate 443 is arranged at the driving end of the first rotating platform 442, the first rotating platform 442 is arranged on the fixing seat 444, and the rotating motor 441 is arranged on the first rotating platform 442 to be able to drive the rotating plate 443 to rotate around the third direction Z. When the driving device includes the third driving member 43 and the fourth driving member 44 at the same time, the fourth driving member 44 may be arranged at the driving end of the third driving member 43, specifically, the fixing seat 444 of the fourth driving member 44 may be arranged at the driving end of the third driving member 43, the third driving member 43 may be arranged at the driving end of the first driving member 41, and the first driving member 41 may be arranged on the bottom plate 5, so as to ensure that the first fixing member 1 can move along the first direction Y and the second direction X and can rotate around the third direction Z.

[0038] In order to facilitate the adjustment of the position of the first fixing member 1, preferably, the bending equipment includes a detection device, which is connected to the control device, and the detection device is used to detect the position of the first part 101 placed on the first fixing member 1 and feed back the detection result to the control device, and the control device controls the driving device to drive the first fixing member 1 to move according to the detection result. Among them, the detection device can be a photographing device, and the detection result can be a photo taken by the photographing device. In addition, adjusting the position of the first fixing member 1 by the driving device before fixing the second part 102 can include at least one of the following three operations: 1) The control device controls the first driving member 41 to drive the first fixing member 1 to move along the second direction X; 2) The control device controls the third driving member 43 to drive the first fixing member 1 to move along the first direction Y; 3) The control device controls the fourth driving member 44 to drive the first fixing member 1 to rotate around the third direction Z.

[0039] In order to enable the first fixing member 1 to reliably fix the first portion 101 of the workpiece 100 to be bent, Figure 3As shown, preferably, the first fixing member 1 includes a supporting platform 11 and a plurality of suction cups 12. The supporting platform 11 is provided with a plurality of through holes, and the plurality of suction cups 12 are respectively and correspondingly arranged in the plurality of through holes, and the adsorption surface of the suction cups 12 is flush with the support surface of the supporting platform 11. In this way, the supporting platform 11 can stably support the first part 101, and the suction cups 12 can contact and adsorb the first part 101, so that the first part 101 can be reliably fixed.

[0040] Furthermore, when placing the first part 100 of the workpiece to be bent 100 on the first fixing member 1, in order to facilitate positioning, as Figure 3 As shown, preferably, a stopper 13 is provided on the first fixing member 1, and the stopper 13 includes a first stopper 131 and a second stopper 132 respectively provided along directions perpendicular to each other, the first stopper 131 is used to position the first side of the first part 101, and the second stopper 132 is used to position the second side of the first part 101 perpendicular to the first side.

[0041] Specifically, the bending process of the bending device of the present application can be as follows:

[0042] 1) Place the workpiece 100 to be bent with the stopper 13 as a reference, so that the first side and the second side of the first part 101 (such as LCD or OLED) are respectively against the first stopper 131 and the second stopper 132, and the suction cup 12 is used to fix the first part 101;

[0043] 2) A detection device (such as a CCD camera) is used to detect the position of the first part 101 and the detection result (such as a photo taken by the CCD camera) is fed back to the control device. The control device adjusts the position of the first fixing member 1 according to the detection result, and the adjustment of the position of the first fixing member 1 includes at least one of the following three operations: 1) The control device controls the first driving member 41 to drive the first fixing member 1 to move along the second direction X; 2) The control device controls the third driving member 43 to drive the first fixing member 1 to move along the first direction Y; 3) The control device controls the fourth driving member 44 to drive the first fixing member 1 to rotate around the third direction Z. When the first fixing member 1 is adjusted to a suitable position, the second fixing member 2 adsorbs and fixes the second part 102 (such as FPC);

[0044] 3) The control device controls the flip driving member 3 to drive the second fixing member 2 to flip around the first direction Y to bend the second portion 102 and during the bending process can simultaneously control the first driving member 41 to drive the first fixing member 1 to move along the second direction X and control the second driving member 42 to drive the second fixing member 2 and the flip driving member 3 to move along the third direction Z so that the bending portion t can always be in an arc shape.

[0045] The second aspect of the present disclosure provides a bending method, comprising: fixing the first part 101 of the workpiece 100 to be bent with a first fixing member 1; fixing the second part 102 of the workpiece 100 to be bent with a second fixing member 2; controlling the flip driving member 3 to drive the second fixing member 2 to rotate around the first direction Y to bend the second part 102 relative to the first part 101, and controlling the driving device to drive the first fixing member 1 to move and / or drive the second fixing member 2 and the flip driving member 3 to move during the bending process, so that the bending portion t of the second part 102 connected to the first part 101 or the first part 101 connected to the second part 102 can always be in an arc shape. Preferably, the bending method uses the above-mentioned bending equipment.

[0046] Since the control device can simultaneously control the drive device to drive the first fixing member 1 to move and / or drive the second fixing member 2 and the flipping drive member 3 to move during the bending process of controlling the flipping drive member 3 to flip around the first direction Y to bend the second part 102, the bending portion t of the second part 102 connected to the first part 101 or the bending portion t of the first part 101 connected to the second part 102 can always be in an arc shape, that is, the bending portion can be folded in an arc in real time during the bending process, thereby avoiding the problem of creases or dead folds and improving the product qualification rate.

[0047] In order to realize that the driving device drives the first fixing member 1 to move and / or drives the second fixing member 2 and the flip driving member 3 to move so that the bending portion t can always be in an arc shape, as shown in FIG. Figure 2 and Figure 3 As shown, preferably, the driving device includes a first driving member 41 and a second driving member 42, the first driving member 41 is connected to the first fixing member 1, and the flip driving member 3 is arranged at the driving end of the second driving member 42, and the bending method includes controlling the first driving member 41 to drive the first fixing member 1 to move along the second direction X perpendicular to the first direction Y during the bending process, and controlling the second driving member 42 to drive the second fixing member 2 and the flip driving member 3 to move along the third direction Z perpendicular to the first direction Y and the second direction X during the bending process. That is to say, at this time, the control device is configured to control the flip driving member 3 to drive the second fixing member 2 to rotate around the first direction Y to bend the second part 102 relative to the first part 101, and in the bending process, it can simultaneously control the first driving member 41 to drive the first fixing member 1 to move along the second direction X and control the second driving member 42 to drive the second fixing member 2 and the flip driving member 3 to move along the third direction Z, so that the bending portion t can always be in an arc shape.

[0048] In order to ensure the accuracy of bending, the position of the second part 102 needs to be adjusted before fixing the second part 102. Since the second part 102 is connected to the first part 101, and the first part 101 can be fixed by the first fixing member 1, the position of the second part 102 can be adjusted by moving the first fixing member 1, for example, the driving device controls the first driving member 41 to drive the first fixing member 1 to move along the second direction X. In addition, Figure 2 As shown, preferably, the driving device includes a third driving member 43, which is disposed at the driving end of the first driving member 41, and the bending method includes: before the second part 102 is fixed, the third driving member 43 is controlled to drive the first fixing member 1 to move along the first direction Y. Optionally, the driving device includes a fourth driving member 44, which is disposed at the driving end of the first driving member 41, and the bending method includes: before the second part 102 is fixed, the fourth driving member 44 is controlled to drive the first fixing member 1 to rotate around the third direction Z.

[0049] Furthermore, in order to facilitate the adjustment of the position of the first fixing member 1, preferably, the bending method includes: before fixing the second part 102, using a detection device to detect the position of the first part 101 placed on the first fixing member 1 and controlling the driving device to drive the first fixing member 1 to move according to the detection result of the detection device. Wherein, adjusting the position of the first fixing member 1 by the driving device before fixing the second part 102 may include at least one of the following three operations: 1) the control device controls the first driving member 41 to drive the first fixing member 1 to move along the second direction X; 2) the control device controls the third driving member 43 to drive the first fixing member 1 to move along the first direction Y; 3) the control device controls the fourth driving member 44 to drive the first fixing member 1 to rotate around the third direction Z.

[0050] Take the first part 101 including the screen body and the second part 102 including the flexible circuit board and the bending part t as an example, and refer to Figure 1 and Figure 4 , the movement of the first fixing member 1 and the second fixing member 2 during the bending process is described. First, the parameters are defined: the connection point between the screen body and the bending portion t is point C (point C can be along Figure 4 The connection point between the flexible circuit board and the bending part t is point B (point B can be moved along Figure 4 The turning axis (rotation center of the rotating disk 31) is point A; the length of the bending portion t is L; the real-time bending angle is θ, wherein θ is the arc center angle of the bending portion t, and the arc gradually bends from a horizontal line with a center angle of 0 degrees to a minor arc and finally forms a semicircle with a center angle of 180 degrees, and R is the arc radius.

[0051] Specifically, take a point P in the device as the origin of the coordinate system and establish Figure 4The XZR coordinate system is shown. The X-axis distance from point A to point P is Lx, the Z-axis distance from point C to point P is Lz, and θ is the real-time bending angle. Trajectory planning:

[0052] X-axis: 0.22cos(69.3+θ)-L / (θ / 180π)sinθ+Lx,

[0053] Z axis: [L / (θ / 180π)](1-cosθ)-0.22sin(69.3+θ)+Lz, (θ=15, 30, 45...180) (when θ=0, X=Lx, Z=Lz)

[0054] The following is an example of a bending angle of 15 degrees and a bending length of 1.85 mm to further illustrate the above formula:

[0055] Point A (flip axis):

[0056] The rotating disk 31 is disposed at the driving end of the second driving member 42, so point A in the coordinate system simply moves along the third direction Z. Assuming that the X coordinate of point A is 0, the straight-line distance from point B to the flip axis point A is 0.22, and the angle between point B and the X axis in the initial state is 69.3 degrees, then by connecting line AB, it can be obtained that the X coordinate of point B is 0.22cos(69.3+15).

[0057] Arc BC is the actual bending portion t, and its total length remains unchanged at 1.85. When the real-time bending angle is 15 degrees, the real-time R angle radius is 1.85 / (15 / 180π). Through arc BC, it can be obtained that the X coordinate of point C is 0.22cos(69.3+15)-[1.85 / (15 / 180π)]sin15. Since point C is a point fixed on the supporting platform 11, the X coordinate of point C is the movement trajectory of the first driving member 41 (X-direction driving member) in the X-axis direction of the coordinate system with point A as the origin.

[0058] Similarly, if point C is taken as the initial position, assuming that the X-axis distance from point C to the flip axis point A is 1.77 at the initial position, the X coordinate of point A becomes:

[0059] 0.22cos(69.3+15)-[1.85 / (15 / 180π)]sinθ+1.77.

[0060] Point C (the connection point between the bending part t and the screen):

[0061] Assuming that the Z coordinate of point C is 0, through the BC arc, the Z coordinate of point B can be obtained as [1.85 / (15 / 180π)](1-cos15), and through the AB line, the Z coordinate of point A can be obtained as [1.85 / (15 / 180π)](1-cos15)-0.22sin(69.3+15). Since point A is fixed on the driving end of the second driving member 42, the motion trajectory of the Z coordinate of the flip axis point A in the Z-axis direction of the coordinate system with point C as the origin is the actual driving trajectory of the second driving member 42. Similarly, if point A is assumed to be stationary, assuming that the distance from point C to the flip axis point A in the Z-axis direction is 0.23 at the initial position, the Z coordinate of point C becomes:

[0062] [1.85 / (15 / 180π)](1-cos15)-0.22sin(69.3+15)+0.23 is the motion trajectory of the support platform 11 relative to the flip axis point A.

[0063] Point B (connection point between bending part t and flexible circuit board):

[0064] By default, when point A is stationary, the X coordinate is 0.22cos(69.3+15), and the Z coordinate is 0.22sin(69.3+15). By default, when point C is stationary, the X coordinate is [1.85 / (15 / 180π)]sin15, and the Z coordinate is [1.85 / (15 / 180π)](1-cos15).

[0065] In fact, X, Z, and R all move. Therefore, if a fixed point on the device is selected as the origin to establish a coordinate system, it is only necessary to measure the distances of point A and point C relative to the fixed point along the second direction X and the third direction Z respectively, and the formula can be derived.

[0066] Therefore, during the bending process, the first driving member 41 drives the screen to move in the second direction X in real time, and the second driving member 42 drives the flexible circuit board to move in the third direction Z in real time, so that the bending portion t can be bent in an arc manner.

[0067] Specifically, the following steps can be followed to make the bending portion t bend in a circular arc in real time: first, take a point, take a number of real-time bending angles θ; then, according to each real-time bending angle, calculate the position of the center point O and the connection point B' of the bending portion t and the flexible circuit board; then, make the connection point C of the bending portion t and the screen body compensated to the X-axis coordinate position of the center point O in the X-axis direction, and make the connection point B of the bending portion t and the flexible circuit board compensated to the calculated Z-axis coordinate position of B' in the Z-axis direction. In this way, by matching the real-time bending angle, moving the position of point C in the X-axis direction and the position of point B in the Z-axis direction, it can be ensured that the bending portion t is always bent in a circular arc.

[0068] In addition, although exemplary embodiments have been described herein, the scope includes any and all embodiments based on the present disclosure with equivalent elements, modifications, omissions, combinations (e.g., various embodiments intersecting schemes), adaptations or changes. The elements in the claims will be interpreted broadly based on the language adopted in the claims, and are not limited to the examples described in this specification or during the implementation of this application, and the examples will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered as examples only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0069] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. For example, a person of ordinary skill in the art can use other embodiments when reading the above description. In addition, in the above-mentioned specific embodiments, various features can be grouped together to simplify the present disclosure. This should not be interpreted as an intention that a disclosed feature that is not required to be protected is necessary for any claim. On the contrary, the subject matter of the present disclosure may be less than all the features of a specific disclosed embodiment. Thus, the following claims are incorporated into the specific embodiments as examples or embodiments, wherein each claim is independently used as a separate embodiment, and it is considered that these embodiments can be combined with each other in various combinations or arrangements. The scope of the present disclosure should be determined with reference to the attached claims and the full scope of equivalent forms granted by these claims.

[0070] The above embodiments are only exemplary embodiments of the present disclosure and are not intended to limit the present disclosure. The protection scope of the present disclosure is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present disclosure within the essence and protection scope of the present disclosure, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present disclosure.

Claims

1. A bending device, characterized in that: include: A first fixing member, used for fixing a first portion of the workpiece to be bent; A second fixing member, used for fixing the second part of the part to be bent; a flip driving member and a control device, wherein the flip driving member is connected to the second fixing member and the control device to drive the second fixing member to flip around a first direction under the control of the control device to bend the second part relative to the first part; and a driving device connected to the control device and the first fixing member and / or the flip driving member and capable of driving the first fixing member to move and / or the second fixing member and the flip driving member to move during the bending process under the control of the control device, so that the bending portion of the second part connected to the first part or the bending portion of the first part connected to the second part can always be in an arc shape; Wherein, the driving device comprises: a first driving member connected to the first fixing member so as to be able to drive the first fixing member to move along a second direction perpendicular to the first direction; and a second driving member, wherein the flip driving member is disposed at a driving end of the second driving member so that the second driving member can drive the second fixing member and the flip driving member to move along a third direction perpendicular to the first direction and the second direction; The flip driving member includes a rotating disk, a flip motor and a flip platform, the second fixing member is arranged on the flip platform, the flip platform is eccentrically arranged on the rotating disk, and the flip motor and the second rotating platform are connected to be able to drive the second fixing member to rotate around a first direction.

2. The bending device according to claim 1, characterized in that: The driving device comprises: a third driving member, provided at a driving end of the first driving member and connected to the first fixing member so as to be able to drive the first fixing member to move along the first direction under the control of the control device; and / or The fourth driving member is arranged at the driving end of the first driving member and is connected to the first fixing member so as to be able to drive the first fixing member to rotate around the third direction under the control of the control device.

3. The bending device according to claim 1, characterized in that: The bending equipment includes a detection device, which is connected to the control device. The detection device is used to detect the position of the first part placed on the first fixing member and feed back the detection result to the control device. The control device controls the driving device to drive the first fixing member to move according to the detection result.

4. The bending device according to any one of claims 1 to 3, characterized in that: The first fixing member comprises: A supporting platform, wherein a plurality of through holes are provided on the supporting platform; and A plurality of suction cups are respectively and correspondingly arranged in the plurality of through holes, and the adsorption surface of the suction cups is flush with the support surface of the support platform.

5. The bending device according to any one of claims 1 to 3, characterized in that: A stopper is provided on the first fixing member, and the stopper includes a first stopper and a second stopper respectively provided along directions perpendicular to each other, the first stopper is used to position a first side of the first part, and the second stopper is used to position a second side of the first part perpendicular to the first side.

6. A bending method, characterized in that: Applied to the bending device according to any one of claims 1 to 5, the bending method comprises: Fixing the first part of the workpiece to be bent with a first fixing member; Fixing the second part of the to-be-bent piece with a second fixing piece; The flip driving member is controlled to drive the second fixing member to rotate around a first direction to bend the second part relative to the first part, and during the bending process, the driving device is controlled to drive the first fixing member to move and / or drive the second fixing member and the flip driving member to move, so that the bending part of the second part connected to the first part or the bending part of the first part connected to the second part can always be in an arc shape.

7. The bending method according to claim 6, characterized in that: The driving device comprises a first driving member and a second driving member, the first driving member is connected to the first fixing member, the flip driving member is arranged at the driving end of the second driving member, and the bending method comprises: During the bending process, controlling the first driving member to drive the first fixing member to move along a second direction perpendicular to the first direction; and During the bending process, the second driving member is controlled to drive the second fixing member and the flip driving member to move along a third direction perpendicular to the first direction and the second direction.

8. The bending method according to claim 7, characterized in that: The driving device comprises: A third driving member is provided at a driving end of the first driving member, and the bending method comprises: before fixing the second part, controlling the third driving member to drive the first fixing member to move along the first direction; and / or The fourth driving member is arranged at the driving end of the first driving member, and the bending method comprises: before fixing the second part, controlling the fourth driving member to drive the first fixing member to rotate around the third direction.

9. The bending method according to claim 6, characterized in that: The bending method comprises: before fixing the second part, using a detection device to detect the position of the first part placed on the first fixing member and controlling the driving device to drive the first fixing member to move according to the detection result of the detection device.

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