Optical fiber cleaving apparatus and control method

Abstract

The application discloses an optical fiber cutting device and a control method. The device comprises an operating table, a clamp assembly, a tension sensor and a cutting structure. The operating table is provided with a first slide seat capable of moving along the left-right direction. The clamp assembly comprises a first clamp and a second clamp which are oppositely arranged to form a cutting interval. The first clamp is arranged on the operating table, and the second clamp is movably arranged on the first slide seat along the left-right direction. The tension sensor has opposite first and second ends. The second end is arranged on the first slide seat, and the first end is in contact with the second clamp to provide the acting force of the second clamp away from the first clamp. The cutting structure is arranged on the operating table and in the cutting interval. The cutting structure is capable of moving along the front-back direction to cut the optical fiber to be cut which is pulled by the first clamp and the second clamp. The tension sensor can know whether the optical fiber to be cut is loose. In the case of no loosening, the cutting can obtain the most neat cross section.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical fiber cutting, in particular to an optical fiber cutting device and a control method. BACKGROUND

[0002] In the field of optical fiber light transmission, it is usually necessary to cut the optical fiber. The existing optical fiber cutting device usually adopts two optical fiber clamps to pull the optical fiber tight, aiming to keep the optical fiber in a straight state during transverse cutting by a cutting tool, so as to ensure the neatness of the cutting section. However, the existing optical fiber cutting device has a problem. In order to prevent the optical fiber from being crushed by the optical fiber clamp, the limiting pressure of the optical fiber clamp on the optical fiber cannot be too large. As a result, during the process from when the optical fiber clamp pulls the optical fiber tight to when the cutting tool actually cuts the optical fiber, there is a risk that the optical fiber will slip out of the optical fiber clamp in a small amount. This will cause the optical fiber to not actually keep an effective straight state during the cutting process, and thus the quality of the final cutting section cannot be ensured. SUMMARY

[0003] The main purpose of the present application is to provide an optical fiber cutting device and a control method, aiming to solve the problem of uneven quality of the final cutting section caused by the optical fiber easily slipping out of the optical fiber clamp in the existing cutting device.

[0004] To achieve the above-mentioned purpose, the optical fiber cutting device provided by the present application comprises:

[0005] An operation table, on which a first sliding seat capable of moving in the left-right direction is arranged;

[0006] A clamp assembly, comprising a first clamp and a second clamp arranged opposite to each other in the left-right direction to form a cutting interval therebetween, wherein the first clamp is arranged on the operation table, and the second clamp is arranged on the first sliding seat and capable of moving in the left-right direction;

[0007] A tension sensor having opposite first and second ends, wherein the second end is arranged on the first sliding seat, and the first end abuts against the second clamp to provide an acting force of the second clamp away from the first clamp; and

[0008] A cutting structure arranged on the operation table and located in the cutting interval, wherein the cutting structure is capable of moving in the front-back direction to cut the optical fiber to be cut which is pulled tight by the first clamp and the second clamp.

[0009] Optionally, the optical fiber cutting device comprises an X-axis motion module arranged on the operation table, wherein the X-axis motion module comprises the first sliding seat; and / or,

[0010] The optical fiber cutting device comprises a Y-axis motion module arranged on the operation table, wherein the Y-axis motion module comprises a second sliding seat capable of moving in the front-back direction, and the cutting structure is arranged on the second sliding seat.

[0011] Optionally, the cutting structure is articulated with a structure, and the structure comprises a mounting seat and an adjusting seat articulated with each other along an axis in a left-right direction, the mounting seat is movably arranged on the operation table in a front-rear direction, and the cutting tool is arranged on the adjusting seat towards the cutting interval.

[0012] Optionally, the position of the cutting tool in an up-down direction on the adjusting seat is adjustable.

[0013] To achieve the above-mentioned purpose, the control method of the optical fiber cutting device is based on the optical fiber cutting device described in the above scheme, the optical fiber cutting device comprises an X-axis movement module and a Y-axis movement module arranged on the operation table, the X-axis movement module comprises the first sliding seat, the Y-axis movement module comprises a second sliding seat movable in a front-rear direction, and the cutting structure is arranged on the second sliding seat:

[0014] The control method of the optical fiber cutting device comprises the following steps:

[0015] S10, after clamping the optical fiber to be cut on the first clamp and the second clamp, controlling the X-axis movement module to act to drive the first sliding seat away from the first clamp, and obtaining a first current tension value of the tension sensor;

[0016] S20, when the first current tension value reaches a target tension value, controlling the X-axis movement module to stop acting;

[0017] S30, after the X-axis movement module stops acting for a preset time length, obtaining a second current tension value of the tension sensor, and calculating a first tension difference value between the target tension value and the second current tension value;

[0018] S40, when the first tension difference value is less than a first allowable difference value, controlling the Y-axis movement module to act until the cutting structure cuts the optical fiber to be cut.

[0019] Optionally, when the first tension difference value is less than the allowable difference value, the controlling the Y-axis movement module to act until the cutting structure cuts the optical fiber to be cut comprises:

[0020] S41, controlling the Y-axis movement module to act at a third speed to drive the cutting structure to move towards a pre-cutting position;

[0021] S42, after reaching the pre-cutting position, controlling the Y-axis movement module to act at a fourth speed to drive the cutting structure to cut the optical fiber to be cut;

[0022] Wherein, the third speed is greater than the fourth speed.

[0023] Optionally, the controlling the Y-axis movement module to actuate at the fourth speed to drive the cutting structure to cut the optical fiber to be cut after reaching the pre-cutting position comprises:

[0024] S421, controlling the Y-axis movement module to actuate to drive the cutting structure to travel a first unit distance close to the optical fiber to be cut at the fourth speed;

[0025] S422, obtaining a third current tension value of the tension sensor, and calculating a second tension difference value between the third current tension value and the target tension value;

[0026] S423, when the second tension difference value is less than a second allowable difference value, controlling the Y-axis movement module to actuate to drive the cutting structure to travel a second unit distance away from the optical fiber to be cut at the fourth speed;

[0027] S424, repeating the steps of S421 to S423 until the second tension difference value is greater than the second allowable difference value, and controlling the X-axis movement module to actuate to drive the first sliding seat away from the first clamp;

[0028] Wherein, the first unit distance is greater than the second unit distance.

[0029] Optionally, when the second tension difference value is greater than the second allowable difference value, the controlling the X-axis movement module to actuate to drive the first sliding seat away from the first clamp comprises:

[0030] Controlling the X-axis movement module and the Y-axis movement module to actuate to respectively drive the first sliding seat to move away from the first clamp at a first speed and the cutting structure to move away from the optical fiber to be cut at the first speed.

[0031] Optionally, the step of controlling the X-axis movement module to actuate to drive the first sliding seat away from the first clamp and obtaining a first current tension value of the tension sensor comprises:

[0032] Controlling the X-axis movement module to actuate to drive the first sliding seat to move away from the first clamp at a first speed and obtaining an initial current tension value of the tension sensor;

[0033] When the initial current tension value reaches a preset tension value, controlling the X-axis movement module to actuate to drive the first sliding seat to move away from the first clamp at a second speed and obtaining a first current tension value of the tension sensor;

[0034] The first speed is greater than the second speed.

[0035] Optionally, the preset time length is t, wherein 3s≤t≤5s; and / or,

[0036] The first allowable difference value is n, wherein n≤1%.

[0037] In the technical solution provided by the application, the first clamp is arranged on the operation table, the second clamp is movably arranged on the operation table through the first sliding base, and the second clamp can also be movably arranged on the first sliding base and connected with the first sliding base through the tension sensor, so that the tension sensor can acquire the tension of the to-be-cut optical fiber between the first clamp and the second clamp in real time during the process that the first sliding base moves away from the second clamp, and the tension value of the to-be-cut optical fiber can be acquired through the tension sensor after the first clamp and the second clamp pull the to-be-cut optical fiber tight, and whether the to-be-cut optical fiber is loose can be known through the acquired tension value, if it is judged that the to-be-cut optical fiber is not loose, the cutting structure is driven to cut the optical fiber, the quality of the section of the optical fiber cut finally can be ensured to be stable, and if it is judged that the to-be-cut optical fiber is loose, the optical fiber can be clamped again, and the device finally meets the cutting condition. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in the drawings without creative labor.

[0039] Figure 1 The structural schematic diagram of an embodiment of the optical fiber cutting device provided by the present application is shown in the figure.

[0040] Figure 2 The structural schematic diagram of an embodiment of the optical fiber cutting device provided by the present application is shown in the figure. Figure 1

[0041] Figure 3 The structural schematic diagram of the local A in the figure is shown in the figure. Figure 2

[0042] Figure 4 The flowchart of an embodiment of the control method of the optical fiber cutting device provided by the present application is shown in the figure.

[0043] Explanation of the reference signs:

[0044]

[0045]

[0046] ​​The objectives, functional characteristics and advantages of the present application will be further described with reference to the embodiments in combination with the accompanying drawings. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0048] It should be noted that if the directionality indication is involved in the embodiments of the present application, the directionality indication is only used to explain the relative position relationship and movement condition between components in a certain posture, and if the certain posture changes, the directionality indication also changes accordingly.

[0049] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0050] In the field of optical fiber light transmission, it is usually necessary to cut the optical fiber. The existing optical fiber cutting device usually adopts two optical fiber clamps to tension the optical fiber, aiming to ensure that the optical fiber remains straight during the transverse cutting process of the cutting tool, so as to ensure the neatness of the cutting section. However, the existing optical fiber cutting device has a problem. In order to ensure that the optical fiber is not crushed by the optical fiber clamp, the limiting pressure of the optical fiber clamp on the optical fiber cannot be too large. As a result, during the process from when the optical fiber clamp tensions the optical fiber to when the cutting tool actually cuts the optical fiber, there is a risk that the optical fiber will slip out of the optical fiber clamp in a small amount, which will cause the optical fiber to not actually remain in an effective straight state during the cutting process, and thus the quality of the final cutting section cannot be ensured.

[0051] In view of this, the present application provides an optical fiber cutting device and a control method, aiming to solve the problem of uneven quality of the final cutting section caused by the fact that the optical fiber is easy to slip out of the optical fiber clamp in the existing cutting device, wherein Figures 1 to 3 The structural schematic diagram of an embodiment of the optical fiber cutting device provided by the present application is shown in the figure, Figure 4 The flowchart of the control method provided by the present application is shown in the figure.

[0052] Please refer to Figures 1 to 3 The optical fiber cutting device 100 comprises an operation table 1, a clamp assembly 2, a tension sensor 3 and a cutting structure 4, the operation table 1 is provided with a first sliding seat 51 capable of moving in the left-right direction, the clamp assembly 2 comprises a first clamp 21 and a second clamp 22 which are oppositely arranged to form a cutting interval therebetween, the first clamp 21 is arranged on the operation table 1, the second clamp 22 is movably arranged on the first sliding seat 51 in the left-right direction, the tension sensor 3 has opposite first and second ends, the second end is arranged on the first sliding seat 51, and the first end abuts against the second clamp 22 to provide the action force of the second clamp 22 away from the first clamp 21, and the cutting structure 4 is arranged on the operation table 1 and located in the cutting interval, and the cutting structure 4 is capable of moving in the front-rear direction to cut the optical fiber 200 which is pulled tight by the first clamp 21 and the second clamp 22.

[0053] In the technical scheme, the first clamp 21 is arranged on the operation table 1, the second clamp 22 is movably arranged on the operation table 1 through the first sliding seat 51, and the second clamp 22 can also be movably arranged on the first sliding seat 51 and connected to the first sliding seat 51 through the tension sensor 3, so that the tension sensor 3 can acquire the tension of the optical fiber 200 to be cut between the first clamp 21 and the second clamp 22 in real time during the process that the first sliding seat 51 moves away from the second clamp 22, and the tension value of the optical fiber 200 to be cut can be acquired through the tension sensor 3 after the first clamp 21 and the second clamp 22 pull the optical fiber 200 to be cut tight, and whether the optical fiber 200 to be cut is loose can be known through the acquired tension value, if it is judged that the optical fiber 200 to be cut is not loose, the cutting structure 4 is driven to cut the optical fiber, so that the section quality of the optical fiber cut finally can be ensured, and if it is judged that the optical fiber 200 to be cut is loose, the optical fiber can be clamped again, and the device finally meets the cutting condition.

[0054] In order to enable the operator to intuitively know the tension value, thereby facilitating timely execution of the next operation, in the embodiment, the optical fiber cutting device 100 further comprises a control device and a digital display device, the digital display device and the tension sensor 3 are electrically connected to the control device, so as to limit the stress condition of the tension sensor 3 in real time through the digital display device, thereby problems can be found in time.

[0055] In the above embodiment, the cutting mode of the cutting structure 4 to the optical fiber can adopt a direct cutting mode or a mode of cutting first and then pulling off, and in the embodiment of the application, the mode of cutting first and then pulling off the optical fiber by the first clamp 21 and the second clamp 22 is preferably adopted to cut the optical fiber.

[0056] The first clamp 21 and the second clamp 22 need to be aligned in the left-right direction to ensure the relative perpendicularity to the cutting structure 4, and the alignment process is realized by using a ceramic reference ruler, so that the consistency in the left-right height and the front-rear direction is ±0.02 mm.

[0057] There are various ways to realize the active setting of the first sliding seat 51, for example, the way of a lead screw and a sliding block can be adopted, or other ways can be adopted, and specifically, in the embodiment, the optical fiber cutting device 100 comprises an X-axis motion module 5 arranged on the operation table 1, the X-axis motion module 5 comprises the first sliding seat 51, and the displacement amount of the first sliding seat 51 can be accurately controlled by the X-axis motion module 5, so that the stable pulling of the optical fiber can be maintained. The X-axis motion module 5 with high precision and the tension sensor 3 can realize stable and precise control of the tension of the optical fiber, and the error is ±2.5 gf.

[0058] Similarly, there are various ways to realize the active setting of the optical fiber cutting device 100, and specifically, in the embodiment, the optical fiber cutting device 100 comprises a Y-axis motion module 6 arranged on the operation table 1, the Y-axis motion module 6 comprises a second sliding seat 61 which can move in the front-rear direction, and the cutting structure 4 is arranged on the second sliding seat 61, the displacement amount of the second sliding seat 61 can be accurately controlled by the Y-axis motion module 6, the high-precision Y-axis motion module 6 drives the cutter head to cut linearly, the positioning is accurate, the single-step distance is 1 um, so that the stable control of the feed amount of the cutting tool can be maintained, and the cutting depth is avoided.

[0059] It should be noted that the above two parallel technical features "the optical fiber cutting device 100 comprises an X-axis motion module 5 arranged on the operation table 1, the X-axis motion module 5 comprises the first sliding seat 51" and "the optical fiber cutting device 100 comprises a Y-axis motion module 6 arranged on the operation table 1, the Y-axis motion module 6 comprises a second sliding seat 61 which can move in the front-rear direction, and the cutting structure 4 is arranged on the second sliding seat 61" can be set simultaneously or separately, and obviously, the effect of simultaneous setting is better.

[0060] The cutting structure 4 is used for cutting optical fiber vertically, and its specific structure can be various, and in the embodiment, the cutting structure 4 is hinged with a hinge structure 41 and a cutting head 42, the hinge structure 41 comprises a mounting seat 411, an adjusting seat 412 and the cutting head 42, the mounting seat 411 and the adjusting seat 412 are hinged along the axis in the left-right direction, the mounting seat 411 is movably arranged on the operation table 1 along the front-rear direction, and the cutting head 42 is arranged on the adjusting seat 412 and faces the cutting interval. The cutting edge of the cutting head 42 can be adjusted to a suitable cutting angle through the rotation adjustment of the adjusting seat 412, so that the optical fiber can be efficiently cut.

[0061] In order to ensure the cutting quality of the optical fiber section, the cutting edge of the cutting head 42 is generally thin, and the cutting edge is prone to breakage during cutting. Therefore, in the embodiment, the position of the cutting head 42 in the up-down direction on the adjusting seat 412 is adjustable. The breakage of the cutting edge of the cutting head 42 is an inevitable problem, but through the adjustment of the position of the cutting head 42 in the up-down direction, the cutting edge of the next point can be adjusted to correspond to the optical fiber 200 to be cut after the breakage of the cutting edge of the point of the cutting head 42, so that the service life of the cutting head 42 is greatly improved, and the purchase or production cost of the cutting head 42 is reduced.

[0062] Specifically, the adjusting seat 412 is formed with a head positioning groove, the head positioning groove is long in the up-down direction, and the cutting head 42 is fitted in the head positioning groove. The position of the cutting point of the cutting head 42 can be adjusted through the rotation of the cutting point switching screw arranged in the adjusting seat 412.

[0063] In addition, in order to achieve the above object, the application also provides a control method of the optical fiber cutting device, and the control method of the optical fiber cutting device comprises the optical fiber cutting device 100 in the above technical solution. It should be noted that the detailed structure of the optical fiber cutting device 100 of the control method of the optical fiber cutting device can refer to the above-mentioned embodiments of the optical fiber cutting device 100, which will not be repeated here. Since the above-mentioned optical fiber cutting device 100 is used in the control method of the optical fiber cutting device of the application, the embodiments of the control method of the optical fiber cutting device of the application comprise all technical solutions of all embodiments of the above-mentioned optical fiber cutting device 100, and the technical effects achieved are also completely the same, which will not be repeated here.

[0064] In addition, in order to achieve the above object, please refer to Figure 4The application further provides a control method of the optical fiber cutting device, based on the optical fiber cutting device 100 in the technical solution, the optical fiber cutting device 100 comprises an X-axis movement module 5 and a Y-axis movement module 6 arranged on the operation table 1, the X-axis movement module 5 comprises the first sliding seat 51, the Y-axis movement module 6 comprises a second sliding seat 61 movable in the front-back direction, and the cutting structure 4 is arranged on the second sliding seat 61; the control method of the optical fiber cutting device comprises the following steps:

[0065] S10, after clamping the optical fiber to be cut 200 on the first clamp 21 and the second clamp 22, controlling the X-axis movement module 5 to act to drive the first sliding seat 51 away from the first clamp 21, and obtaining a first current tension value of the tension sensor 3;

[0066] S20, when the first current tension value reaches a target tension value, controlling the X-axis movement module 5 to stop acting;

[0067] S30, after the X-axis movement module 5 stops acting for a preset time length, obtaining a second current tension value of the tension sensor 3, and calculating a first tension difference value between the target tension value and the second current tension value;

[0068] S40, when the first tension difference value is less than a first allowable difference value, controlling the Y-axis movement module 6 to act until the cutting structure 4 cuts the optical fiber to be cut 200.

[0069] By comparing the first tension difference value between the second current tension value and the target tension value with the first allowable difference value after controlling the X-axis movement module 5 to stop moving for a preset time length, whether the tension borne by the optical fiber to be cut 200 is too fast can be judged, when the first tension difference value is less than the first allowable difference value, it represents that the optical fiber to be cut 200 is stable in tension within the preset time length, and cutting can be performed, when the first tension difference value is greater than the first allowable difference value, it represents that the optical fiber to be cut 200 is unstable in tension within the preset time length, and cannot meet the cutting standard, and needs to be clamped again.

[0070] Since the cutting structure 4 is used to cut the optical fiber in the mode of cutting a notch first and then pulling off the optical fiber by the first clamp 21 and the second clamp 22 in the embodiment of the application, the feed amount of the cutting structure 4 needs to be strictly controlled, based on this, in the embodiment, when the first tension difference value is less than the allowable difference value, the Y-axis movement module 6 is controlled to act until the cutting structure 4 cuts the optical fiber to be cut 200, which comprises:

[0071] S41, controlling the Y-axis movement module 6 to act at a third speed to drive the cutting structure 4 to move towards a pre-cutting position;

[0072] S42, after reaching the pre-cutting position, controlling the Y-axis movement module 6 to act at a fourth speed to drive the cutting structure 4 to cut the optical fiber 200 to be cut;

[0073] Wherein, the third speed is greater than the fourth speed.

[0074] By controlling the Y-axis movement module 6 to act at a larger third speed, the cutting structure 4 can be ensured to feed to the pre-cutting position in a safe manner, ensuring the feeding efficiency, and then controlling the Y-axis movement module 6 to act at a slower fourth speed, so that the cutting structure 4 can be accurately cut into the optical fiber 200 to be cut, and the cutting structure 4 can also be timely controlled to stop or reverse, avoiding cutting too deep and ensuring the neatness of the cross section of the optical fiber after being pulled off by the first clamp 21 and the second clamp 22.

[0075] Specifically, in the embodiment, after reaching the pre-cutting position, the Y-axis movement module 6 is controlled to act at a fourth speed to drive the cutting structure 4 to cut the optical fiber 200 to be cut, comprising:

[0076] S421, controlling the Y-axis movement module 6 to act to drive the cutting structure 4 to approach the optical fiber 200 to be cut at a fourth speed to travel a first unit distance;

[0077] S422, obtaining a third current tension value of the tension sensor 3, and calculating a second tension difference value between the third current tension value and the target tension value;

[0078] S423, when the second tension difference value is less than a second allowable difference value, controlling the Y-axis movement module 6 to act to drive the cutting structure 4 to move away from the optical fiber 200 to be cut at a fourth speed to travel a second unit distance;

[0079] S424, repeating the steps of S421 to S423 until the second tension difference value is greater than the second allowable difference value, and controlling the X-axis movement module 5 to act to drive the first sliding seat 51 to move away from the first clamp 21;

[0080] Wherein, the first unit distance is greater than the second unit distance.

[0081] By feeding and retreating by the first unit distance and the second unit distance reciprocally, it can ensure that the cutter head of the cutting structure 4 cuts the fiber to be cut 200 with a relatively controllable cutting amount, and the stability of the cross section of the fiber can be controlled. When the second tension difference is greater than the second allowable difference, it means that the fiber to be cut 200 will be pulled off, and the X-axis motion module 5 is controlled to drive the first sliding seat 51 away from the first clamp 21, so that the cutting structure 4 and the fiber are not affected, and the cutter head of the cutting structure 4 is protected, and the cross section quality of the fiber is ensured.

[0082] Specifically, the second allowable difference is N, and 15%N≤25%.

[0083] More specifically, when the second tension difference is greater than the second allowable difference, the X-axis motion module 5 is controlled to drive the first sliding seat 51 away from the first clamp 21, which includes:

[0084] The X-axis motion module 5 and the Y-axis motion module 6 are controlled to drive the first sliding seat 51 away from the first clamp 21 at a first speed, and the cutting structure 4 away from the fiber to be cut 200 at a first speed.

[0085] By driving the first sliding seat 51 away from the first clamp 21 while driving the driving structure to retreat, the fiber can be pulled off by using the opening on the cross section of the fiber to be cut 200 as a stress concentration area, and the cross section is ensured to be neat.

[0086] Further, in order to improve the cutting efficiency of the next fiber to be cut 200 after one fiber is cut, in the embodiment, after the step of controlling the X-axis motion module 5 and the Y-axis motion module 6 to drive the first sliding seat 51 away from the first clamp 21 at a first speed and the cutting structure 4 away from the fiber to be cut 200 at a first speed, it further includes:

[0087] After the cut fiber is taken out

[0088] If it is detected that the cover plates of the first clamp 21 and the second clamp 22 are closed, the X-axis motion module 5 and the Y-axis motion module 6 are controlled to drive the first sliding seat 51 and the cutting structure 4 to reset;

[0089] If it is not detected that the cover plates of the first clamp 21 and the second clamp 22 are closed, after a set waiting time, the X-axis motion module 5 and the Y-axis motion module 6 are controlled to drive the first sliding seat 51 and the cutting structure 4 to reset.

[0090] By controlling the first sliding seat 51 and the cutting structure 4 to reset in a timely manner according to the actual situation, the cutting efficiency of the subsequent to-be-cut optical fiber 200 can be improved.

[0091] During the operation of the X-axis motion module 5, the protection of the to-be-cut optical fiber 200 needs to be considered to avoid the to-be-cut optical fiber 200 being damaged due to the excessive displacement of the X-axis motion module 5 and the inability to control it in time. In the embodiment, the step of controlling the X-axis motion module 5 to act to drive the first sliding seat 51 away from the first clamp 21 and obtaining the first current tension value of the tension sensor 3 comprises:

[0092] controlling the X-axis motion module 5 to act to drive the first sliding seat 51 away from the first clamp 21 at a first speed, and obtaining the initial current tension value of the tension sensor 3;

[0093] When the initial current tension value reaches a preset tension value, controlling the X-axis motion module 5 to act to drive the first sliding seat 51 away from the first clamp 21 at a second speed, and obtaining the first current tension value of the tension sensor 3;

[0094] The first speed is greater than the second speed.

[0095] By driving the first sliding seat 51 at a relatively large first speed first, and then driving the first sliding seat 51 at a relatively small second speed until the initial current tension value obtained by the tension sensor 3 reaches a preset tension value, the inability to control the first sliding seat 51 to stop in time can be avoided, the safety of the to-be-cut optical fiber 200 can be ensured, and the feeding efficiency is relatively high.

[0096] Specifically, the preset tension value is f, and the first current tension value is F, wherein f = 90% F.

[0097] The range of the preset time length can be set according to actual needs. Specifically, in the embodiment, the preset time length is t, wherein 3s≤t≤5s. Controlling the preset time length within a relatively reasonable range can improve the overall cutting efficiency of the device.

[0098] The size of the first allowable difference is related to the allowable tightness of the to-be-cut optical fiber 200 during the final cutting, that is, it affects the quality of the final cutting section. Therefore, in the embodiment, the first allowable difference is n, wherein n≤1%. The smaller the first allowable difference, the higher the final quality of the cutting section.

[0099] The two parallel technical features "the preset time length is t, and 3s≤t≤5s" and "the first allowable difference is n, and n≤1%" can be set alternatively or simultaneously. Obviously, the effect of simultaneous setting is better.

[0100] The above description is only the preferred embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or the like within the concept of the present application, using the content of the present application specification and drawings, is included in the patent protection scope of the present application.

Claims

1. A control method of an optical fiber cutting device based on an optical fiber cutting device, characterized in that the optical fiber cutting device comprises: an operation table, on which a first slide capable of moving in a left-right direction is arranged; a clamp assembly, comprising a first clamp and a second clamp arranged oppositely in a left-right direction to form a cutting interval therebetween, the first clamp being arranged on the operation table, and the second clamp being arranged on the first slide and capable of moving in a left-right direction; a tension sensor, having opposite first and second ends, the second end being arranged on the first slide, and the first end abutting against the second clamp to provide an acting force of the second clamp away from the first clamp; and a cutting structure, arranged on the operation table and in the cutting interval, the cutting structure being capable of moving in a front-rear direction to cut an optical fiber to be cut which is pulled by the first clamp and the second clamp; the optical fiber cutting device comprises an X-axis movement module and a Y-axis movement module arranged on the operation table, the X-axis movement module comprising the first slide, and the Y-axis movement module comprising a second slide capable of moving in a front-rear direction, and the cutting structure being arranged on the second slide; the control method of the optical fiber cutting device comprises the following steps: S10, after clamping the optical fiber to be cut on the first clamp and the second clamp, controlling the X-axis movement module to act to drive the first slide away from the first clamp, and obtaining a first current tension value of the tension sensor; S20, when the first current tension value reaches a target tension value, controlling the X-axis movement module to stop acting; S30, after the X-axis movement module stops acting for a preset time length, obtaining a second current tension value of the tension sensor, and calculating a first tension difference value between the target tension value and the second current tension value; S40, when the first tension difference value is less than a first allowable difference value, controlling the Y-axis movement module to act until the cutting structure cuts the optical fiber to be cut; when the first tension difference value is less than the allowable difference value, the controlling the Y-axis movement module to act until the cutting structure cuts the optical fiber to be cut comprises: S41, controlling the Y-axis movement module to act at a third speed to drive the cutting structure to move towards a pre-cutting position; S42, after reaching the pre-cutting position, controlling the Y-axis movement module to act at a fourth speed to drive the cutting structure to cut the optical fiber to be cut; wherein the third speed is greater than the fourth speed; the step of controlling the X-axis movement module to act to drive the first slide away from the first clamp and obtaining the first current tension value of the tension sensor comprises: controlling the X-axis movement module to act to drive the first slide to move away from the first clamp at a first speed, and obtaining an initial current tension value of the tension sensor; when the initial current tension value reaches a preset tension value, controlling the X-axis movement module to act to drive the first slide to move away from the first clamp at a second speed, and obtaining the first current tension value of the tension sensor; and the first speed is greater than the second speed. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The control method according to claim 1, characterized by, The Y-axis movement module is controlled to act at the fourth speed to drive the cutting structure to cut the optical fiber to be cut after reaching the pre-cutting position, and the method comprises the steps of: S421. The Y-axis movement module is controlled to act to drive the cutting structure to travel a first unit distance at the fourth speed to approach the optical fiber to be cut; S422. A third current tension value of the tension sensor is obtained, and a second tension difference value between the third current tension value and the target tension value is calculated; S423. When the second tension difference value is less than a second allowable difference value, the Y-axis movement module is controlled to act to drive the cutting structure to travel a second unit distance at the fourth speed to move away from the optical fiber to be cut; S424. The steps of S421 to S423 are repeatedly executed until the second tension difference value is greater than the second allowable difference value, and the X-axis movement module is controlled to act to drive the first sliding seat to move away from the first clamp; The first unit distance is greater than the second unit distance.

3. The control method according to claim 2, characterized by, When the second tension difference value is greater than the second allowable difference value, the X-axis movement module is controlled to act to drive the first sliding seat to move away from the first clamp, and the method comprises the steps of: The X-axis movement module and the Y-axis movement module are controlled to act to respectively drive the first sliding seat to move away from the first clamp at a first speed and the cutting structure to move away from the optical fiber to be cut at the first speed.

4. The control method according to claim 1, characterized by, The preset time length is t, wherein 3s≤t≤5s; and / or The first allowable difference value is n, wherein n≤1%.

5. The control method according to claim 1, characterized by, The cutting structure comprises a hinged structure and a cutting tool head, the hinged structure comprises a mounting seat, an adjusting seat and the cutting tool head, the mounting seat and the adjusting seat are hinged along an axis in a left-right direction, the mounting seat is movably arranged on the operation table in a front-rear direction, and the cutting tool head is arranged on the adjusting seat to face the cutting interval.

6. The control method according to claim 5, characterized by, The position of the cutting tool head in an up-down direction on the adjusting seat is adjustable.

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