CN113942874B

CN113942874B - Wave moves cutting off fixture of optic fibre

Info

Publication number: CN113942874B
Application number: CN202111279514.1A
Authority: CN
Inventors: 魏亚东; 周梓荣; 孙志嘉; 唐彬; 吴云霞; 邓凯
Original assignee: Dongguan Dongguan Institute Of Science And Technology Innovation
Current assignee: Dongguan Dongguan Institute Of Science And Technology Innovation
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-11-11
Anticipated expiration: 2041-11-01
Also published as: CN113942874A

Abstract

The invention relates to a cutting and clamping mechanism of a wave-shift optical fiber, which comprises a rack, an unreeling device and a guiding device, wherein the guiding device comprises a guiding frame arranged on the rack, a height guiding roller and a space guiding roller are arranged on the guiding frame, the optical fiber discharged from the unreeling device completely passes through the middle of the two height guiding rollers, each optical fiber passes through the space guiding rollers in the adjacent two vertical directions, a wire drawing device matched with all the optical fibers passing through the space guiding rollers is also arranged on the rack, a cutting device is arranged between the wire drawing device and the guiding device, a wire clamping device matched with the optical fibers drawn by the wire drawing device and capable of carrying out single clamping is also arranged on the rack, and a wire releasing device clamped with the two ends of the optical fibers clamped by the wire clamping device is also arranged on the rack; can arrange optic fibre according to fixed interval and cut off to can carry out the centre gripping to the optic fibre both ends after cutting off and discharging, so conveniently place the disposable of optic fibre range in the carrier of bending.

Description

Wave moves cutting off fixture of optic fibre

Technical Field

The invention relates to the field of application equipment of a spallation neutron source detector, in particular to a cutting and clamping mechanism of a wave-shift optical fiber.

Background

The China spallation neutron source detector comprises a scintillator detector, the existing scintillator detector needs to use a wave-shift optical fiber for detector signal transmission, the wave-shift optical fiber is very expensive, most of the existing scintillator detectors are imported at present, the price is about $ 17/meter, the wave-shift optical fiber is fragile in structure, and is very easy to bend and damage, so that light leakage occurs to influence signal transmission; in the research and development process of the detector, the bending of the wave-moving optical fiber is required to be realized, in order to realize the bending of the optical fiber, a bending carrier is designed, the bending carrier comprises three sections of plates, the outer plates can rotate around an intermediate plate, wire grooves for placing the wave-moving optical fiber are formed in the three sections of plates, the optical fiber needs to be placed in the wire grooves, then a lock block is pressed at the outer ends of the two outer plates, then the locking block is locked through bolts, the wave-moving optical fiber is further discharged, the bending of the wave-moving optical fiber is realized through the bending carrier (generally through water bath bending), the prior wave-moving optical fiber is cut off by manually matching cutting equipment, then the cut-off wave-moving optical fiber is placed in the bending carrier through a manual mode, in the process, the optical fiber needs to be carried manually for multiple times, the damage of the optical fiber is easily caused, and the economic loss is caused.

Disclosure of Invention

The invention aims to provide a cutting and clamping mechanism of a wave-shift optical fiber, which can arrange and cut the optical fiber at a fixed interval and clamp two ends of the cut and arranged optical fiber, so that the optical fiber can be conveniently placed in a bending carrier at one time, the placing efficiency is improved, the contact of manpower to the optical fiber is reduced, and the economic loss is avoided.

In order to achieve the above purpose, the invention adopts the technical scheme that: the utility model provides a ripples moves cutting off fixture of optic fibre, includes frame and unwinding device, the frame on be provided with unwinding device complex guiding device, guiding device including setting up the guide frame in the frame, the guide frame on be provided with high guide roller and interval guide roller, the optic fibre that emits from unwinding device is whole to pass from the middle of two high guide rollers, and every optic fibre passes between the interval guide roller of two adjacent vertical trends, the frame on still be provided with and pass all optic fibre complex draw off mechanism of interval guide roller, draw off mechanism and guiding device between be provided with cutting device, the frame on still be provided with the optic fibre cooperation that draws with draw off mechanism and can carry out the trapping mechanism of single centre gripping, the frame on still be provided with the pay-off device that carries out the centre gripping with the both ends of the optic fibre of trapping mechanism centre gripping.

Preferably, the wire drawing device comprises a wire drawing seat arranged on the frame, a wire drawing movable device is arranged on the wire drawing seat, a wire drawing holder is arranged on the wire drawing movable device, the wire drawing holder comprises a wire drawing movable seat connected to the wire drawing movable device, a wire drawing lifting seat is connected to the wire drawing movable seat through a wire drawing lifting cylinder, a wire drawing clamping cylinder is arranged below the wire drawing lifting seat, the wire drawing clamping cylinder is connected with two wire drawing clamping blocks, and a wire drawing clamping elastic block is arranged on the inner side of each wire drawing clamping block.

Preferably, unwinding device including unreeling the frame, unreel and be provided with driving motor's the pivot of unreeling on the frame, the pivot of unreeling cup joint the charging tray, and the driving motor cooperation that unreels the pivot has unwinding speed regulator.

Preferably, the wire clamping device comprises a wire clamping movable device which is arranged on the wire pulling seat and runs parallel to the wire pulling movable device, the wire clamping movable device is connected with a wire clamping movable seat, a wire clamping lifting device is arranged on the wire clamping movable seat, the wire clamping lifting device is connected with a wire clamping lifting seat, two wire clamping interval adjusting cylinders which are arranged back to back are arranged on the wire clamping lifting seat, the wire clamping interval adjusting cylinders are connected with a wire clamping mounting plate, a wire clamping device is arranged below the wire clamping mounting plate, the wire clamping device comprises wire clamping cylinders arranged below the wire clamping mounting plate, the number of the wire clamping cylinders is consistent with the number of wire grooves in the bending carrier, the wire clamping cylinders are distributed in a V shape, each wire clamping cylinder is connected with a wire clamping group consisting of two wire clamping blocks, and the interval between adjacent clamped optical fibers is consistent with the interval between the adjacent optical fibers in the guiding roller.

Preferably, the cutting device comprises a cutting installation block arranged on the rack, a lower cutter lifting cylinder and an upper cutter lifting cylinder are arranged on the cutting installation block, the lower cutter lifting cylinder is connected with a lower cutter lifting seat, a lower cutter is arranged on the lower cutter lifting seat, the upper cutter lifting cylinder is connected with an upper cutter lifting seat, an upper cutter is arranged on the upper cutter lifting seat, and the upper cutter and the lower cutter are matched to cut the optical fiber.

Preferably, the rack is further provided with a cutting and clamping device, the cutting and clamping device is located between the guiding device and the cutting device, the cutting and clamping device comprises a cutting support block and a cutting wire holder, the cutting support block and the cutting wire holder are arranged on the rack and used for supporting the optical fibers, and the number of the cutting wire holders is consistent with that of wire grooves in the bending carrier and distributed in a V shape.

Preferably, the pay-off device comprises a pay-off mounting seat arranged below a platen of the frame, a pay-off lifting structure is arranged on the pay-off mounting seat and connected with a pay-off lifting block, pay-off clamping movable cylinders are arranged at two ends of the pay-off lifting block and connected with a pay-off clamping movable seat, a pay-off clamping cylinder capable of penetrating through the platen of the frame is arranged on the pay-off clamping movable seat, the pay-off clamping cylinder is connected with two pay-off clamping blocks, pay-off clamping elastic blocks are arranged on the inner sides of the pay-off clamping blocks, notches for avoiding interference with the pay-off clamping cylinders are formed in the cutting mounting block, and the lower cutter lifting cylinder and the upper cutter lifting cylinder are respectively arranged on two sides of the notches.

Drawings

Fig. 1 is a perspective view of a cutting and holding mechanism for a wave-shifting optical fiber.

Fig. 2 is a perspective view of a cutting and clamping mechanism for a wave-shift optical fiber without an unwinding device.

Fig. 3 is a schematic perspective view of the unwinding device.

Fig. 4 is a perspective view of the guide device.

Fig. 5 is a perspective view of the thread pulling device and the thread clamping device.

Fig. 6 is a perspective view of the wire holding portion.

Fig. 7 is a perspective view of the wire gripper.

Fig. 8 is a perspective view of the cutting device and the cutting holder.

Fig. 9 is a perspective view of the pay-off device.

The text labels shown in the figures are represented as: 1. a frame; 4. a guide device; 5. cutting off the clamping device; 6. a cutting device; 7. a wire pulling device; 8. a wire clamping device; 9. a pay-off device; 16. an unwinding device; 22. paying off the mounting seat; 23. a paying-off lifting structure; 24. paying off the lifting block; 25. paying off and clamping the movable cylinder; 26. paying off and clamping the movable seat; 27. paying off a clamping cylinder; 28. paying off the clamping block; 29. paying off and clamping the elastic block; 30. an optical fiber; 31. a wire pulling seat; 32. a wire pulling movable device; 33. a wire holder; 34. a pull wire movable seat; 35. a stay wire lifting seat; 36. a stay wire clamping cylinder; 37. a wire pulling clamping block; 38. the elastic block is clamped by the pull wire; 41. a movable device for clamping the wire; 42. a wire clamping movable seat; 43. a wire clamping lifting device; 44. a wire clamping lifting seat; 45. a wire clamping interval adjusting cylinder; 46. a wire clamping mounting plate; 47. a wire clamping device; 48. a wire clamping cylinder; 49. a wire clamping block; 51. cutting off the mounting block; 52. a lower cutter lifting cylinder; 53. a lower cutter lifting seat; 54. a lower cutter; 55. an upper cutter lifting cylinder; 56. an upper cutter lifting seat; 57. an upper cutter; 58. cutting off the supporting block; 59. cutting off the wire holder; 101. unwinding the frame; 102. an unwinding rotating shaft; 103. a material tray; 104. an unwinding speed regulator; 105. a guide frame; 106. a height guide roller; 107. the spacing guides the rollers.

Detailed Description

The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

As shown in fig. 1 to 4, the structure of the present invention is: a cutting and clamping mechanism of a wave-shift optical fiber comprises a rack 1 and an unreeling device 16, wherein a guide device 4 matched with the unreeling device 16 is arranged on the rack 1, the guide device 4 comprises a guide frame 105 arranged on the rack 1, a height guide roller 106 and a distance guide roller 107 are arranged on the guide frame 105, all optical fibers 30 discharged from the unreeling device 16 pass through the middle of the two height guide rollers 106, each optical fiber 30 passes through the adjacent two vertical distance guide rollers 107, a wire drawing device 7 matched with all the optical fibers 30 passing through the distance guide rollers 107 is further arranged on the rack 1, a cutting device 6 is arranged between the wire drawing device 7 and the guide device 4, a wire clamping device 8 matched with the optical fibers 30 drawn out by the wire drawing device 7 and capable of clamping a single optical fiber is further arranged on the rack 1, and a wire paying-off device 9 clamped with two ends of the optical fibers 30 clamped by the wire clamping device 8 is further arranged on the rack 1.

The specific operation is as follows: when the bending device is used specifically, the bending device is generally used together with a bending carrier, the end of the optical fiber 30 of the unreeling device 16 firstly passes through the two height guide rollers 106, then a single optical fiber 30 passing through the height guide rollers 106 passes through the adjacent space guide rollers 107, so that the ends of the optical fiber 30 are distributed at a certain interval, the interval is generally consistent with the space between the wire clamping slots on the bending carrier, the number of the optical fibers 30 is also consistent with the number of the wire clamping slots, then all the optical fibers passing out of the space guide rollers 107 are clamped and pulled for a set distance through the wire drawing device 7, then the drawn optical fibers 30 are clamped by the wire clamping device 8, the optical fibers 30 are cut through the cutting device 6, then the optical fibers are clamped by the wire clamping device 8 to move to the position matched with the wire paying-off device 9, the two ends of the optical fibers 30 are clamped by the paying-off device 9, and then the optical fibers can be placed on the bending carrier in a neat arrangement mode through descending of the paying-off device 9, the placing efficiency is improved, manual contact of the optical fibers is reduced, and economic loss is avoided.

As shown in fig. 5-6, the wire pulling device 7 includes a wire pulling seat 31 disposed on the frame 1, a wire pulling movable device 32 is disposed on the wire pulling seat 31, a wire pulling holder 33 is disposed on the wire pulling movable device 32, the wire pulling holder 33 includes a wire pulling movable seat 34 connected to the wire pulling movable device 32, the wire pulling movable seat 34 is connected to a wire pulling lifting seat 35 through a wire pulling lifting cylinder, a wire pulling clamping cylinder 36 is disposed below the wire pulling lifting seat 35, the wire pulling clamping cylinder 36 is connected to two wire pulling clamping blocks 37, and a wire pulling clamping elastic block 38 is disposed on an inner side of each wire pulling clamping block 37.

The specific operation of the wire drawing device 7 is as follows: drive through the head of the cable running gear 32 earlier and act as go-between holder 33 and remove to the position with fiber end complex, and the lift seat 35 of acting as go-between this moment also can go up and down with fiber fit's height, and then can make the fiber head be in between two grip blocks 37 of acting as go-between, then drive two grip blocks 37 of acting as go-between through the grip cylinder 36 of acting as go-between and close and carry out the centre gripping to the fiber head, through the design of the grip elastic block 38 of acting as go-between, can ensure good clamping effect, can not damage optic fibre simultaneously again, also can ensure simultaneously that the condition of optic fibre position change can not appear in the in-process of pulling.

As shown in fig. 3, the unwinding device 16 includes an unwinding frame 101, an unwinding rotation shaft 102 provided with a driving motor is disposed on the unwinding frame 101, the unwinding rotation shaft 102 is sleeved with a material tray 103, and the driving motor of the unwinding rotation shaft 102 is matched with an unwinding speed regulator 104.

When the unwinding device 16 unwinds, the unwinding speed of the unwinding rotating shaft 102 is adjusted by the unwinding speed adjuster 104, when the optical fiber initially passes through the guiding device, the unwinding speed should be slower, and when the unwinding device is matched with the pulling device, the unwinding speed is adjusted to a state matched with the moving speed of the pulling device, so that the optical fiber can be straightened, and meanwhile, the optical fiber cannot be pulled by a large pulling force.

As shown in fig. 5 and 7, the wire clamping device 8 includes a wire clamping movable device 41 disposed on the wire pulling seat 31 and parallel to the wire pulling movable device 32, the wire clamping movable device 41 is connected with a wire clamping movable seat 42, a wire clamping lifting device 43 is disposed on the wire clamping movable seat 42, the wire clamping lifting device 43 is connected with a wire clamping lifting seat 44, two wire clamping interval adjusting cylinders 45 disposed back to back are disposed on the wire clamping lifting seat 44, the wire clamping interval adjusting cylinders 45 are connected with a wire clamping mounting plate 46, a wire clamping unit 47 is disposed below the wire clamping mounting plate 46, the wire clamping unit 47 includes wire clamping cylinders 48 disposed below the wire clamping mounting plate 46, the number of the wire clamping cylinders 48 is the same as the number of wire slots on the bending carrier, the wire clamping cylinders 48 are distributed in a V shape, each wire clamping cylinder 48 is connected with a wire clamping group composed of two wire clamping blocks 49, and the distance between adjacent clamped optical fibers 30 is the same as the distance between optical fibers 30 in the adjacent distance guiding rollers 107.

After the optical fiber is pulled out by a required distance, the position of the wire clamping movable seat 42 is adjusted through the wire clamping movable device 41, then the wire clamping lifting seat 44 is driven to descend through the wire clamping lifting cylinder 43, each wire clamping group is matched with one optical fiber, then the distance between good wire clamps 47 is adjusted through the wire clamping distance adjusting cylinder 45 according to the length specification of the optical fiber, then each wire clamping cylinder 48 drives the wire clamping group consisting of two wire clamping blocks 49 to be closed to clamp a single optical fiber, the wire clamping cylinders are distributed in a V shape, the interference between the two wire clamping cylinders can be avoided, meanwhile, the clamping space can be saved, the mutual distance between the optical fibers clamped by the wire clamping devices can be matched with a wire groove on a bending carrier, the optical fibers can be accurately placed in the wire groove after being transferred to the wire releasing device, and the situation that the optical fiber is inclined when a cutter acts in the cutting process can also be avoided through the structural design of the wire clamping devices.

As shown in fig. 8, the cutting device 6 includes a cutting mounting block 51 disposed on the frame 1, and the cutting mounting block 51 is provided with a lower cutter lifting cylinder 52 and an upper cutter lifting cylinder 55, the lower cutter lifting cylinder 52 is connected with a lower cutter lifting seat 53, the lower cutter lifting seat 53 is provided with a lower cutter 54, the upper cutter lifting cylinder 55 is connected with an upper cutter lifting seat 56, the upper cutter lifting seat 56 is provided with an upper cutter 57, and the upper cutter 57 and the lower cutter 54 cooperate to cut the optical fiber.

After the wire pulling is finished and the wire clamping is carried out, the cutting operation is carried out, specifically, the lower cutter lifting cylinder 52 and the upper cutter lifting cylinder 55 respectively drive the lower cutter 54 and the upper cutter 57 to move oppositely, so that the cutting edges of the two cutters are matched to cut the optical fiber, and the structure that the upper cutter and the lower cutter are movable is adopted, so that the cutter and the wire pulling structure can be prevented from being interfered.

As shown in fig. 8, the frame 1 is further provided with a cutting and clamping device 5, the cutting and clamping device 5 is located between the guiding device 4 and the cutting device 6, the cutting and clamping device 5 includes a cutting and supporting block 58 and a cutting and clamping device 59 which are arranged on the frame 1 and used for supporting the optical fiber, and the number of the cutting and clamping devices 59 is consistent with that of the wire slots on the bending carrier and is distributed in a V shape.

The structural design of the cutting and clamping device 5 can support the optical fiber part to be cut through the cutting support block 58, and can clamp and position each optical fiber through the cutting and clamping devices 59 distributed in a V shape, so that the optical fiber position change (mainly inclination) caused in the cutting process can be avoided, and the accurate pulling initial positions and the accurate intervals among the subsequent optical fibers are further ensured.

As shown in fig. 9, the pay-off device 9 includes a pay-off mounting seat 22 disposed below a platen of the frame 1, a pay-off lifting structure 23 is disposed on the pay-off mounting seat 22, the pay-off lifting structure 23 is connected with a pay-off lifting block 24, two ends of the pay-off lifting block 24 are provided with pay-off clamping movable cylinders 25, the pay-off clamping movable cylinders 25 are connected with pay-off clamping movable seats 26, the pay-off clamping movable seats 26 are provided with pay-off clamping cylinders 27 capable of penetrating through the platen of the frame 1, the pay-off clamping cylinders 27 are connected with two pay-off clamping blocks 28, inner sides of the pay-off clamping blocks 28 are provided with pay-off clamping elastic blocks 29, a notch which avoids interference with the pay-off clamping cylinders 27 is formed in the cutting mounting block 51, and the lower cutter lifting cylinder 52 and the upper cutter lifting cylinder 55 are respectively disposed at two sides of the notch.

Firstly, the pay-off lifting structure 23 drives the pay-off lifting block 24 to lift, so that the pay-off clamping block 28 penetrates through a bedplate of the rack 1 and is matched with an optical fiber clamped by the wire clamping device 8 in height, then the room clamping movable cylinder 25 drives the pay-off clamping movable seat 26 to move, so that the pay-off clamping block 28 is matched with the end position of the optical fiber, then the pay-off clamping cylinder 27 drives the pay-off clamping block 28 to close, so that the end of the optical fiber can be clamped by the pay-off clamping elastic block 29, then the wire clamping device is loosened, so that the optical fiber clamped by the pay-off clamping elastic block 29 can vertically fall down through the descending of the pay-off lifting structure 23, so that the optical fiber is clamped into a wire slot in a one-to-one correspondence manner, then the pay-off clamping cylinder 27, the pay-off lifting structure 23 and the pay-off clamping movable cylinder 25 are restored to the original positions, namely, one-time accurate pay-off operation is completed, a notch which avoids interference is arranged on the cutting mounting block, and the up-down lifting cylinders are arranged on two sides of the notch, and the cut-off device and the pay-off device can be completely prevented from interfering with the pay-off device.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention have been described herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. It should be noted that there are no specific structures but rather a few limitations to the preferred embodiments of the present invention, and that many modifications, adaptations, and variations are possible and can be made by one skilled in the art without departing from the principles of the present invention; such modifications, variations, or combinations, or other applications of the inventive concepts and solutions as may be employed without such modifications, are intended to be included within the scope of the present invention.

Claims

1. A cutting and clamping mechanism for a wave-shift optical fiber comprises a rack (1) and an unreeling device (16), and is characterized in that a guide device (4) matched with the unreeling device (16) is arranged on the rack (1), the guide device (4) comprises a guide frame (105) arranged on the rack (1), a height guide roller (106) and a distance guide roller (107) are arranged on the guide frame (105), the optical fibers (30) paid out from the unreeling device (16) all pass through the middle of the two height guide rollers (106), each optical fiber (30) passes through between two adjacent vertical distance guide rollers (107), a wire pulling device (7) matched with all the optical fibers (30) passing through the distance guide rollers (107) is further arranged on the rack (1), a cutting device (6) is arranged between the wire pulling device (7) and the guide device (4), a wire clamping device (8) matched with the optical fibers (30) pulled out by the wire pulling device (7) and capable of clamping a single optical fiber is further arranged on the rack (1), and a wire clamping device (9) arranged on the rack (1) comprises a wire pulling device (9), the pull wire clamping device comprises a pull wire base (31), a pull wire movable device (32) is arranged on the pull wire movable device (32), a pull wire holder (33) is arranged on the pull wire movable device (32), the pull wire holder (33) comprises a pull wire movable seat (34) connected to the pull wire movable device (32), the pull wire movable seat (34) is connected with a pull wire lifting seat (35) through a pull wire lifting cylinder, a pull wire clamping cylinder (36) is arranged below the pull wire lifting seat (35), the pull wire clamping cylinder (36) is connected with two pull wire clamping blocks (37), a pull wire clamping elastic block (38) is arranged on the inner side of each pull wire clamping block (37), the wire clamping device (8) comprises a wire clamping movable device (41) which is arranged on the pull wire base (31) and runs parallel to the pull wire movable device (32), the wire clamping movable device (41) is connected with a wire clamping movable seat (42), a wire clamping lifting device (43) is arranged on the wire clamping movable seat (42), the wire clamping lifting device (43) is connected with a wire clamping lifting seat (44), the wire lifting seat (44) is provided with two wire clamping cylinders (46) for adjusting the distance between the wires, and the two wire clamping cylinders (46) are arranged below the wire clamping cylinders (45), the wire clamping device (47) comprises wire clamping cylinders (48) arranged below the wire clamping mounting plate (46), the number of the wire clamping cylinders (48) is consistent with the number of wire grooves in a bending carrier, the wire clamping cylinders (48) are distributed in a V shape, each wire clamping cylinder (48) is connected with a wire clamping group consisting of two wire clamping blocks (49), and the distance between adjacent clamped optical fibers (30) is consistent with the distance between adjacent optical fibers (30) in adjacent distance guide rollers (107).

2. The cutting and clamping mechanism for the wave-shift optical fiber according to claim 1, wherein the unwinding device (16) comprises an unwinding frame (101), an unwinding rotating shaft (102) equipped with a driving motor is arranged on the unwinding frame (101), the unwinding rotating shaft (102) is sleeved with a tray (103), and the driving motor of the unwinding rotating shaft (102) is matched with an unwinding speed regulator (104).

3. The cutting and clamping mechanism for the wave-motion optical fiber is characterized in that the cutting device (6) comprises a cutting mounting block (51) arranged on the rack (1), a lower cutter lifting cylinder (52) and an upper cutter lifting cylinder (55) are arranged on the cutting mounting block (51), the lower cutter lifting cylinder (52) is connected with a lower cutter lifting seat (53), a lower cutter (54) is arranged on the lower cutter lifting seat (53), an upper cutter lifting seat (56) is connected with the upper cutter lifting cylinder (55), an upper cutter (57) is arranged on the upper cutter lifting seat (56), and the upper cutter (57) and the lower cutter (54) are matched to cut the optical fiber.

4. The cutting and clamping mechanism for the wave-shifted optical fiber according to claim 3, characterized in that the rack (1) is further provided with a cutting and clamping device (5), the cutting and clamping device (5) is located between the guiding device (4) and the cutting device (6), the cutting and clamping device (5) comprises a cutting support block (58) and a cutting wire clamper (59) which are arranged on the rack (1) and used for supporting the optical fiber, and the number of the cutting wire clampers (59) is consistent with that of the wire grooves on the bending carrier and is distributed in a V shape.

5. The cutting and clamping mechanism for the wave-shift optical fiber is characterized in that the pay-off device (9) comprises a pay-off mounting seat (22) arranged below a platen of the rack (1), a pay-off lifting structure (23) is arranged on the pay-off mounting seat (22), the pay-off lifting structure (23) is connected with a pay-off lifting block (24), pay-off clamping movable cylinders (25) are arranged at two ends of the pay-off lifting block (24), the pay-off clamping movable cylinders (25) are connected with pay-off clamping movable seats (26), pay-off clamping cylinders (27) capable of penetrating through the platen of the rack (1) are arranged on the pay-off clamping movable seats (26), the pay-off clamping cylinders (27) are connected with two pay-off clamping blocks (28), pay-off clamping elastic blocks (29) are arranged on the inner sides of the pay-off clamping blocks (28), a notch for avoiding interference with the pay-off clamping cylinders (27) is formed in the cutting and mounting block (51), and the lower cutter lifting cylinder (52) and the upper cutter lifting cylinder (55) are respectively arranged on two sides of the notch.