A lossless bending mechanism

Abstract

The present invention relates to the technical field of bending equipment, and specifically to a lossless bending mechanism, comprising a frame and a rotating rod, on which a plurality of mounting frame assemblies arranged at intervals along the length direction of the rotating rod are fixedly mounted, and each mounting frame assembly is fixedly mounted with at least one bending suction nozzle; both ends of the rotating rod are provided with rotating arms, one end of the rotating arm is fixedly connected to the rotating rod, and the other end of the rotating arm is hinged to the frame through a hinge; the frame is also provided with a driving mechanism for driving the rotating arm to rotate around the hinge; compared with the prior art, it replaces the previous manual bending method, improves work efficiency, increases the degree of automation, reduces the labor intensity of workers, saves labor costs, and improves benefits.

Description

Technical Field

[0001] The invention relates to the technical field of bending equipment, and in particular to a lossless bending mechanism. Background Art

[0002] In production, it is necessary to bend certain areas of the flexible PCB board to meet the assembly requirements of electronic products. The current bending method is generally performed by workers manually with the help of simple fixtures, but there are problems such as low bending accuracy, low degree of automation, low production efficiency, and high scrap rate during the production process. Another bending method is to bend by mold stamping, which can easily cause circuit breakage or damage, with a high scrap rate, and its bending angle is limited and has poor applicability. Summary of the invention

[0003] The purpose of the present invention is to address the deficiencies in the prior art and to provide a lossless bending mechanism that can solve the problem of low working efficiency.

[0004] The objective of the present invention is achieved through the following technical solutions: The present application provides a lossless bending mechanism, comprising a frame and a rotating rod, on which a plurality of mounting frame assemblies arranged at intervals along the length direction of the rotating rod are fixedly mounted, and each mounting frame assembly is fixedly mounted with at least one bending nozzle; both ends of the rotating rod are provided with a rotating arm, one end of the rotating arm is fixedly connected to the rotating rod, and the other end of the rotating arm is hinged to the frame through a hinge; the frame is also provided with a driving mechanism for driving the rotating arm to rotate around the hinge.

[0005] Among them, the driving mechanism includes a driving motor, a driving sprocket, a driven sprocket, a rotating shaft and a tensioning wheel assembly. The output shaft of the driving motor is fixedly connected to the driving sprocket, the driving sprocket is connected to the driven sprocket through a chain, the driven sprocket is fixedly sleeved on the rotating shaft, the end of the rotating shaft is connected to the input end of the tensioning wheel assembly, and the output end of the tensioning wheel assembly is connected to the rotating arm.

[0006] The tensioning wheel assembly includes a synchronous belt, a driving wheel, a driven wheel, an adjusting roller and two belt-pressing rollers. The synchronous belt is sleeved on the driving wheel and the driven wheel. The adjusting roller is arranged inside the synchronous belt and the height of the adjusting roller is adjustable. The two belt-pressing rollers are arranged on the outer peripheral side of the synchronous belt and the height of each belt-pressing roller is adjustable.

[0007] The driving wheel is fixedly connected to the rotating shaft, and the driven wheel is fixedly connected to the rotating arm through a hinge.

[0008] Wherein, an angle sensor for detecting the rotation angle of the rotating shaft is provided on the rotating shaft.

[0009] Among them, a plurality of spaced-apart mounting ears are provided on one side of the frame facing the rotating shaft, each mounting ear is provided with a mounting hole for the rotating shaft to pass through, and a bearing is provided between the hole wall of the mounting hole and the outer peripheral side surface of the rotating shaft.

[0010] The mounting frame assembly comprises a mounting seat clamped on a rotating shaft, a slide plate that can slide along the mounting seat, and a mounting plate that can slide along the slide plate, and the bending suction nozzle is fixedly mounted on the mounting plate.

[0011] Wherein, a fixing seat is fixedly installed on the side of the frame.

[0012] Wherein, the hinged part is a rotation axis.

[0013] Beneficial effects of the present invention: The working process of a non-destructive bending mechanism of the present application is as follows: the bending nozzle absorbs the bending portion of the workpiece to be bent, and after the workpiece to be bent is pressed tightly with the external positioning device, the driving mechanism drives the rotating arm to rotate, and the rotating arm rotates and drives the suction nozzle to make a circular motion, so that the bending portion of the workpiece to be bent can be sucked up, thereby achieving a bending effect;

[0014] Compared with the existing technology, it replaces the previous manual bending method, improves work efficiency, increases the degree of automation, reduces the labor intensity of workers, saves labor costs, improves efficiency, and the suction cup can effectively protect the product surface to achieve a lossless bending effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0016] Figure 1 Schematic diagram of the structure of the lossless bending mechanism in the embodiment.

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0018] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0019] Figure numerals: driving motor 1, driving sprocket 11, driven sprocket 12, rotating shaft 2, bearing 21, frame 3, mounting ear 31, tensioning wheel assembly 4, driving wheel 41, driven wheel 42, adjusting roller 43, belt pressure roller 44, rotating rod 5, mounting frame assembly 6, mounting seat 61, slide plate 62, mounting plate 63, bending suction nozzle 7, rotating arm 8. DETAILED DESCRIPTION

[0020] The present invention is further described in conjunction with the following examples.

[0021] For a specific implementation of a lossless bending mechanism of the present invention, see Figures 1 to 3As shown, it includes a frame 3 and a rotating rod 5, on which a plurality of mounting frame assemblies 6 are fixedly mounted and arranged at intervals along the length direction of the rotating rod 5, and each mounting frame assembly 6 is fixedly mounted with a bending suction nozzle 7. It should be noted that the number of bending suction nozzles 7 and the distance between two adjacent bending suction nozzles 7 can be selected according to actual needs. There are rotating arms 8 at both ends of the rotating rod 5, one end of the rotating arm 8 is fixedly connected to the rotating rod 5, and the other end of the rotating arm 8 is hinged to the frame 3 through a hinge. The frame 3 is also provided with a driving mechanism for driving the rotating arm 8 to rotate around the hinge. The above structure can realize that the driving mechanism drives the rotating arm 8 to rotate, and the rotation of the rotating arm 8 drives the suction nozzle to rotate at a certain angle, so that the bending suction nozzle 7 can be bent.

[0022] In this example, see Figure 1 The driving mechanism includes a driving motor 1, a driving sprocket 11, a driven sprocket 12, a rotating shaft 2 and a tension wheel assembly 4. The output shaft of the driving motor 1 is fixedly connected to the driving sprocket 11, the driving sprocket 11 is connected to the driven sprocket 12 through a chain, the driven sprocket 12 is fixedly sleeved on the rotating shaft 2, the end of the rotating shaft 2 is connected to the input end of the tension wheel assembly 4, and the output end of the tension wheel assembly 4 is connected to the rotating arm 8. The chain drive is used as the first transmission structure. Compared with the belt drive, there is no elastic sliding and slipping phenomenon, the average transmission ratio is accurate, the operation is reliable, and the efficiency is high; the transmission power is large, the overload capacity is strong, and the transmission size under the same working condition is small; the required tensioning force is small, and the pressure acting on the shaft is small; it can work in harsh environments such as high temperature, humidity, dust, and pollution.

[0023] In this example, see Figure 2 The tensioning wheel assembly 4 includes a synchronous belt, a driving wheel 41, a driven wheel 42, an adjusting roller 43 and two belt-pressing rollers 44. The synchronous belt is sleeved on the driving wheel 41 and the driven wheel 42. The adjusting roller 43 is arranged inside the synchronous belt and the height of the adjusting roller 43 is adjustable. The two belt-pressing rollers 44 are arranged on the outer peripheral side of the synchronous belt and the height of each belt-pressing roller 44 is adjustable. The driving wheel 41 is fixedly connected to the rotating shaft 2, and the driven wheel 42 is fixedly connected to the rotating arm 8 through a hinge. In the most preferred solution, the hinge is the rotating shaft 2. This structure can keep the synchronous belt with appropriate tension during the transmission process, thereby avoiding the synchronous belt from slipping or dragging out, reducing wear, and further improving the bending accuracy. It can accurately control the rotation angle of the bending nozzle 7, thereby controlling the bending angle.

[0024] In this embodiment, in order to further accurately control the rotation angle of the bending nozzle 7 and thus control the bending angle, an angle sensor for detecting the rotation angle of the rotating shaft 2 is provided on the rotating shaft 2 .

[0025] In this embodiment, in order to improve the stability of the rotating shaft 2, a plurality of spaced-apart mounting ears 31 are provided on the side of the frame 3 facing the rotating shaft 2, each mounting ear 31 is provided with a mounting hole for the rotating shaft 2 to pass through, and a bearing 21 is provided between the hole wall of the mounting hole and the outer peripheral side surface of the rotating shaft 2.

[0026] In this example, see Figure 3 The mounting frame assembly 6 includes a mounting seat 61 clamped on the rotating shaft, a slide plate 62 that can slide along the mounting seat 61, and a mounting plate 63 that can slide along the slide plate 62. The bending suction nozzle 7 is fixedly mounted on the mounting plate 63. It should be noted that the connection between the mounting seat 61 and the rotating shaft, the connection between the slide plate 62 and the mounting seat 61, and the connection between the slide plate 62 and the mounting plate 63 can be increased by a locking mechanism composed of a bolt and a nut, or a locking mechanism of a screw and a threaded hole, mainly to enable the bending suction nozzle 7 to be fixed after the position is adjusted according to needs, thereby increasing the applicability of the bending mechanism.

[0027] In this embodiment, in order to facilitate the fixing and installation of the bending mechanism with external equipment, a fixing seat is fixedly installed on the side of the frame 3.

[0028] The working process of a lossless bending mechanism of the present embodiment is as follows: the bending suction nozzle 7 adsorbs the bending part of the workpiece to be bent, and after the workpiece to be bent is pressed tightly with the cooperation of the external positioning device, the driving mechanism drives the rotating arm 8 to rotate, and the rotating arm 8 rotates and drives the suction nozzle to make a circular motion, so that the bending part of the workpiece to be bent can be sucked up, thereby achieving a bending effect; compared with the prior art, it replaces the previous manual bending method, improves work efficiency, improves the degree of automation, reduces the labor intensity of workers, saves labor costs, and improves benefits. In addition, the suction cup can effectively protect the product surface to achieve a lossless bending effect.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A lossless bending mechanism, Features: The machine comprises a frame and a rotating rod, wherein a plurality of mounting frame assemblies arranged at intervals along the length direction of the rotating rod are fixedly mounted on the rotating rod, and each mounting frame assembly is fixedly mounted with at least one bending suction nozzle; both ends of the rotating rod are provided with rotating arms, one end of the rotating arm is fixedly connected to the rotating rod, and the other end of the rotating arm is hinged to the frame through a hinge; the frame is also provided with a driving mechanism for driving the rotating arm to rotate around the hinge; The driving mechanism comprises a driving motor, a driving sprocket, a driven sprocket, a rotating shaft and a tension wheel assembly, wherein the output shaft of the driving motor is fixedly connected to the driving sprocket, the driving sprocket is connected to the driven sprocket through a chain, the driven sprocket is fixedly sleeved on the rotating shaft, the end of the rotating shaft is connected to the input end of the tension wheel assembly, and the output end of the tension wheel assembly is connected to the rotating arm; The tensioning wheel assembly includes a synchronous belt, a driving wheel, a driven wheel, an adjusting roller and two belt-pressing rollers, wherein the synchronous belt is sleeved on the driving wheel and the driven wheel, the adjusting roller is arranged inside the synchronous belt and the height of the adjusting roller is adjustable, and the two belt-pressing rollers are arranged on the outer peripheral side of the synchronous belt and the height of each belt-pressing roller is adjustable; the driving wheel is fixedly connected to the rotating shaft, and the driven wheel is fixedly connected to the rotating arm through the hinge; The mounting frame assembly comprises a mounting seat clamped on the rotating shaft, a slide plate slidable along the mounting seat and a mounting plate slidable along the slide plate, and the bending suction nozzle is fixedly mounted on the mounting plate.

2. The lossless bending mechanism according to claim 1, Features: The rotating shaft is provided with an angle sensor for detecting the rotation angle of the rotating shaft.

3. The lossless bending mechanism according to claim 1, Features: A plurality of spaced-apart mounting ears are arranged on one side of the frame facing the rotating shaft, each mounting ear is provided with a mounting hole for the rotating shaft to pass through, and a bearing is arranged between the hole wall of the mounting hole and the outer peripheral side surface of the rotating shaft.

4. The lossless bending mechanism according to claim 1, Features: A fixing seat is fixedly installed on the side of the frame.

5. The lossless bending mechanism according to claim 1, Features: The hinge is a rotation axis.

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