Precision guided bidirectional thermal stripping pliers

Abstract

The present invention relates to the field of optical fiber processing, and specifically discloses a precision guided bidirectional heat stripping pliers, comprising a base plate and two heat stripping pliers bodies, each provided with an embedding hole for embedding and processing the optical fiber end, the embedding holes on the two heat stripping pliers bodies facing each other; a guide rail fixedly mounted on the base plate; a plurality of sliders slidably mounted on the guide rails, the heat stripping pliers bodies fixedly mounted on the sliders; and a fixed block located between the two heat stripping pliers bodies, the fixed block fixedly mounted on the base plate, the fixed block end away from the base plate facing the embedding hole. In this solution, the two heat stripping pliers bodies can simultaneously heat strip the plastic sheaths on both ends of the optical fiber, thereby increasing the overall fiber stripping efficiency by approximately 100%. The fixed block can also prevent the middle of the optical fiber from being suspended in the air, effectively reducing the possibility of bending or breaking at the end of the optical fiber.

Description

Technical Field

[0001] The invention relates to the technical field of optical fiber processing, in particular to a precision guided bidirectional thermal stripping pliers. Background Art

[0002] Optical fiber is a light-transmitting device made of glass or plastic that uses the principle of total internal reflection to transmit light through these fibers. Typically, a transmitting device at one end of the fiber uses a light-emitting diode or a laser to convert the optical signal into an electrical signal, which is then transmitted through the fiber to a receiving device at the other end, where the electrical signal is converted back into an optical signal. The fine optical fiber is encapsulated in a plastic sheath, allowing it to bend without breaking.

[0003] When connecting optical fibers, the plastic sheath at the end of the optical fiber needs to be removed in order to facilitate subsequent optical fiber fusion splicing. Generally, an optical fiber heat stripper is used to heat-melt the plastic sheath at the end of the optical fiber. It can quickly and accurately strip wires or cables without damaging the optical fiber end.

[0004] However, commonly used thermal stripping pliers can only perform unidirectional single-end stripping on optical fibers. When single-end stripping is used, two slide rods are generally used to pull and guide the optical fiber. When the longer slide rod is used to guide the optical fiber, the middle part of the optical fiber is suspended in the air, and the pulling force on the optical fiber is transmitted along the direction of the optical fiber, resulting in an angle between the pulling force direction at the thermal stripping pliers and the horizontal axis of the optical fiber, which is easily pulled off, causing the optical fiber to break at the stripping point; at the same time, the single-end stripping method will result in a relatively low thermal stripping efficiency when performing thermal stripping on optical fibers that require thermal stripping at both ends. Summary of the Invention

[0005] In response to the deficiencies in the prior art, the present invention provides a precision guided bidirectional thermal stripping pliers to solve the problem that the single-end fiber stripping method results in low thermal stripping efficiency when performing thermal stripping on optical fibers that require thermal stripping at both ends.

[0006] In order to achieve the above object, the basic scheme of the present invention is as follows: a precision guided bidirectional thermal stripping pliers, comprising a base plate, further comprising:

[0007] Two thermal stripping pliers bodies, each provided with an embedding hole for embedding the optical fiber end portion, the embedding holes on the two thermal stripping pliers bodies being opposite to each other;

[0008] Guide rail, the guide rail is fixedly installed on the base plate;

[0009] Several sliding controls are mounted on the guide rails, and the hot stripping pliers body is fixedly mounted on the slides;

[0010] A fixing block is located between the two heat stripping pliers bodies and is fixedly mounted on the bottom plate. An end of the fixing block away from the bottom plate is opposite to the embedding hole.

[0011] The technical principle of the present invention is as follows: when performing heat stripping on an optical fiber, the optical fiber is placed horizontally on a fixed block, which can limit and fix the optical fiber. At the same time, the slider drives the heat stripping clamp body to move in the direction close to the fixed block, and then the heat stripping clamp body is opened, and the two ends of the optical fiber are respectively installed in the embedded holes of the heat stripping clamp body, and then the heat stripping clamp body is buckled; the heat stripping clamp body is started, and the two heat stripping clamp bodies perform heat melting treatment on the plastic sheaths on the two ends of the optical fiber. After 8-20 seconds of heat melting, the two sliders are controlled to move away from each other. At this time, the heat stripping clamp body drives the two ends of the optical fiber to move away from each other, separating the heat-melted plastic sheath from the optical fiber, and thus completing the simultaneous heat stripping of the two ends of the optical fiber. The overall fiber stripping efficiency can be improved by more than about 1 times.

[0012] The slider and guide rail can cooperate with the heat stripping clamp body to allow the heat stripping clamp body to move stably, avoiding shaking of the optical fiber during the pulling process. The fixed block can also prevent the middle part of the optical fiber from hanging in the air, which can effectively reduce the possibility of bending or breaking at the end of the optical fiber.

[0013] Furthermore, a groove for placing the optical fiber is provided on the fixing block, the end of the groove is opposite to the embedding hole, and the bottom surface of the groove and the bottom surface of the embedding hole are located on the same horizontal plane.

[0014] With the above arrangement, when the optical fiber is placed on the fixing block, the middle portion of the optical fiber is embedded in the groove, and the groove can more stably limit the position of the optical fiber during the thermal stripping process, further preventing the optical fiber from shaking.

[0015] Furthermore, a negative pressure hole for adsorbing the optical fiber is provided in the groove of the fixing block.

[0016] Through the above arrangement, the negative pressure at the negative pressure hole can act on the optical fiber, so that the optical fiber is stably maintained in the groove, and the optical fiber is further stably limited.

[0017] Furthermore, it also includes:

[0018] The column is fixedly installed on the base plate;

[0019] A vertically arranged gas pressure rod, the lower end of which passes through the column and faces the groove, and the gas pressure rod can abut against the optical fiber in the groove or the top surface of the fixed block;

[0020] The cylinder that controls the lifting of the pneumatic rod is fixedly installed on the base plate.

[0021] Through the above arrangement, when the optical fiber is fixed to the fixing block, the cylinder controls the extension of the pneumatic rod, and the pneumatic rod is extended and pressed into the groove of the fixing block or directly pressed and fixed onto the optical fiber, thereby further fixing the optical fiber. When the hot stripping pliers body separates the plastic sheath from the optical fiber, the optical fiber can be more stable, making the separation of the plastic sheath more reliable and smooth.

[0022] Furthermore, the fixed block is provided with a mounting hole for the guide rail to pass through, and a limit rod with adjustable axial position is provided on the side wall of the slider or the hot stripping pliers body. The axis of the limit rod is parallel to the axis of the guide rail, and the end of the limit rod close to the fixed block can be against the side of the fixed block.

[0023] Through the above arrangement, before using the precision guided bidirectional heat stripping pliers, the position of the limit rod on the clamping block is preset according to the length of the optical fiber, so that when the heat stripping pliers body approaches the fixed block under the drive of the slider, the end of the limit rod can be against the side wall of the fixed block, and there is a gap between the heat stripping pliers body and the fixed block to accommodate the ribbon optical fiber, thereby preventing the ribbon optical fiber from bending between the heat stripping pliers body and the fixed block.

[0024] Furthermore, it also includes a limit block, which is adjustably installed on the bottom plate, and the side wall of the limit block can be against the side of the slider or the limit rod away from the fixed block.

[0025] Through the above arrangement, the installation position of the limit block on the floor is adjusted according to the length of the optical fiber, thereby preventing the end of the optical fiber from being completely separated from the embedding hole of the thermal stripping clamp body when the two thermal stripping clamp bodies are driven away from each other by the slider, and also preventing the thermal stripping clamp body and the slider from being separated from the guide rail.

[0026] Furthermore, it also includes:

[0027] A first laser sensor for detecting the position of a human hand, wherein the first laser sensor is fixedly mounted on the column;

[0028] The intermediate relay, the first laser sensor and the cylinder are all electrically connected to the intermediate relay. When the first laser sensor detects a human hand approaching, the intermediate relay controls the pneumatic rod to move upward through the cylinder; when the first laser sensor does not detect a human hand, the intermediate relay controls the pneumatic rod to move downward through the cylinder.

[0029] Through the above setting, the first laser sensor can obtain information about the position of the human hand. When the human hand is taking or placing the optical fiber, the pneumatic rod is located on the groove; only after the human hand is away from the optical fiber can the pneumatic rod be extended to press the groove of the optical fiber or the fixed block, which can ensure that the human hand is away from the pneumatic rod and reduce the risk of crushing injury to the operator.

[0030] Furthermore, it also includes a second laser sensor for detecting whether the optical fiber is located in the groove. The second laser sensor is opposite to the groove. The second laser sensor is electrically connected to the intermediate relay. When the second laser sensor detects that the optical fiber is not located in the groove, the intermediate relay controls the pneumatic rod through the cylinder to pause moving down or up; when the second laser sensor detects that the optical fiber is located in the groove, the intermediate relay controls the pneumatic rod to move down through the cylinder.

[0031] Through the above setting, the second laser sensor will obtain the position information of the optical fiber in the groove, ensuring that the optical fiber is located in the groove before starting the hot stripping process, thereby improving the intelligence of the entire precision guided bidirectional hot stripping pliers.

[0032] Furthermore, it also includes:

[0033] A vacuum generator connected to the negative pressure hole, the vacuum generator is fixedly mounted on the bottom plate;

[0034] A solenoid valve controls whether the vacuum generator is connected to the negative pressure hole, and the solenoid valve is electrically connected to the intermediate relay.

[0035] Through the above arrangement, the solenoid valve can timely control the negative pressure at the negative pressure hole under the control of the intermediate relay, thereby facilitating the fixing or loosening of the optical fiber at the groove, making the fixing and placement of the optical fiber more convenient.

[0036] Furthermore, it also includes an adapter fixed between the hot stripping pliers body and the slider, and a clamping block for clamping the limit rod is fixedly installed on the side wall of the adapter, and the side wall of the adapter can be against the side wall of the fixed block or the limit block.

[0037] Through the above settings, the cooperation between the clamping block and the limit rod makes the position adjustment of the limit rod more convenient and simple; at the same time, the setting of the adapter allows the adapter to be against the fixed block in advance, avoiding the collision of the slider or the hot stripping pliers body with the fixed block or the limit block, and protecting the slider and the hot stripping pliers body. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic structural diagram of the axonometric direction of the precision guided bidirectional thermal stripping pliers in an embodiment of the present invention.

[0039] In the above drawings: base plate 10, outer shell 20, hot stripping pliers body 30, embedded hole 301, guide rail 401, slider 402, limit block 403, adapter 404, clamping block 405, limit rod 406, drag chain 407, fixed block 50, mounting hole 501, groove 502, column 601, pneumatic rod 602, cylinder 603, through groove 604, connecting piece 605, first laser sensor 701, intermediate relay 702, second laser sensor 703, vacuum generator 801, solenoid valve 802, optical fiber ribbon 90. DETAILED DESCRIPTION

[0040] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0041] This embodiment is basically as Figure 1As shown, an embodiment of the present invention proposes a precision guided bidirectional heat stripping pliers, including a base plate 10, a power supply, a shell 20 wrapping the power supply, two heat stripping pliers bodies 30, a guide rail 401, two sliding control sliders 402 installed on the guide rail 401, a fixed block 50 located between the two heat stripping pliers bodies 30, a column 601, a vertically arranged pneumatic rod 602, a cylinder 603 for controlling the lifting of the pneumatic rod 602, two limit blocks 403, a first laser sensor 701 for detecting the position of a human hand, an intermediate relay 702, and a second laser sensor 703 for detecting whether the optical fiber is located in the groove 502. The shell 20 wraps the power supply and is fixed to the rear side of the base plate 10 by bolts.

[0042] like Figure 1 As shown, the heat stripping clamp body 30 is provided with an embedding hole 301 for embedding the optical fiber end portion for processing, and the embedding holes 301 on the two heat stripping clamp bodies 30 are opposite to each other; the guide rail 401 is fixedly mounted on the front side of the base plate 10 by bolts, the heat stripping clamp body 30 is fixedly mounted on the slider 402, and an adapter 404 is fixed between the heat stripping clamp body 30 and the slider 402 by screws. The fixed block 50 is fixedly mounted on the base plate 10, and a mounting hole 501 is provided on the fixed block 50 for the guide rail 401 to pass through. The upper end of the fixed block 50 is opposite to the embedding hole 301, and the fixed block 50 is provided with a groove 502 for placing the optical fiber, the end of the groove 502 is opposite to the embedding hole 301, and the bottom surface of the groove 502 and the bottom surface of the embedding hole 301 are located on the same horizontal plane.

[0043] At the same time, if Figure 1 As shown, a clamping block 405 is fixedly installed on the side wall of the adapter 404, and a limit rod 406 with adjustable axial position is embedded on the side wall of the clamping block 405. The axis of the limit rod 406 is parallel to the axis of the guide rail 401, and the end of the limit rod 406 close to the fixed block 50 can be abutted against the side of the fixed block 50, and the side wall of the adapter 404 can also be abutted against the side wall of the fixed block 50; the limit block 403 is in the shape of an "n", and the limit block 403 is coaxially clamped on the guide rail 401. The lower end of the limit block 403 is detachably connected to the base plate 10 by bolts, and the base plate 10 is provided with a number of connecting holes connected to the lower end of the limit block 403 along the axial direction of the guide rail 401. The side wall of the limit block 403 can be abutted against the side of the adapter 404 or the limit rod 406 away from the fixed block 50.

[0044] like Figure 1 As shown, a negative pressure hole for adsorbing the optical fiber is provided in the groove 502 of the fixed block 50, and a vacuum generator 801 and a solenoid valve 802 for controlling whether the vacuum generator 801 is connected to the negative pressure hole are fixed on the top of the housing 20 by bolts. The solenoid valve 802 is electrically connected to the intermediate relay 702.

[0045] like Figure 1As shown, the column 601 is in an inverted "L" shape, and the lower end of the column 601 is fixedly mounted on the base plate 10 by bolts, the lower end of the pneumatic rod 602 passes through the upper end of the column 601 and is opposite to the groove 502, the pneumatic rod 602 can be against the top surface of the optical fiber in the groove 502, and the cylinder 603 is fixedly mounted on the column 601 by bolts or screws; at the same time, the first laser sensor 701 is vertically fixedly mounted on the upper end of the column 601 by snap-fitting, and a through groove 604 is provided on the vertical section of the column 601 for embedding the second laser sensor 703, and a connecting piece 605 is provided at the through groove 604 for snap-fitting and fixing the second laser sensor 703, and the connecting piece 605 is fixedly connected to the column 601 by bolts or screws, and the second laser sensor 703 is arranged at an angle, and the second laser sensor 703 is opposite to the groove 502.

[0046] At the same time, the first laser sensor 701, the cylinder 603 and the second laser sensor 703 are all electrically connected to the intermediate relay 702. When the first laser sensor 701 detects a human hand approaching, the intermediate relay 702 controls the pneumatic rod 602 to move upward through the cylinder 603; when the first laser sensor 701 does not detect a human hand, the intermediate relay 702 controls the pneumatic rod 602 to move downward through the cylinder 603; when the second laser sensor 703 detects that the optical fiber is not located in the groove 502, the intermediate relay 702 controls the pneumatic rod 602 to pause moving downward or upward through the cylinder 603; when the second laser sensor 703 detects that the optical fiber is located in the groove 502, the intermediate relay 702 controls the pneumatic rod 602 to move downward through the cylinder 603.

[0047] In addition, the intermediate relay 702, the first laser sensor 701, the cylinder 603, the second laser sensor 703, the hot stripping pliers body 30, the slider 402, the solenoid valve 802 and the vacuum generator 801 are all electrically connected to the power supply, and the wires used between the slider 402 and the stripping pliers body and the power supply are wrapped with a drag chain 407, which protects the wires from repeated bending.

[0048] Before using the precision guided bidirectional heat stripping pliers in this embodiment, the position of the limit rod 406 on the clamping block 405 is preset according to the length of the ribbon optical fiber 90, so that when the heat stripping pliers body 30 approaches the fixed block 50 under the drive of the slider 402, the end of the limit rod 406 can be against the side wall of the fixed block 50, and a gap is provided between the heat stripping pliers body 30 and the fixed block 50 to accommodate the ribbon optical fiber 90, thereby preventing the ribbon optical fiber 90 from bending between the heat stripping pliers body 30 and the fixed block 50; the installation position of the limit block 403 on the floor is simultaneously adjusted according to the length of the ribbon optical fiber 90, so as to prevent the end of the ribbon optical fiber 90 from being completely separated from the embedding hole 301 of the heat stripping pliers body 30 when the two heat stripping pliers bodies 30 are driven away from each other by the slider 402, and also to prevent the heat stripping pliers body 30 and the slider 402 from being separated from the guide rail 401.

[0049] After the adjustment is completed, the middle part of the ribbon optical fiber 90 is installed in the groove 502 of the fixed block 50. The groove 502 initially limits the ribbon optical fiber 90. At this time, the heat stripping clamp body 30 is located close to the fixed block 50 under the drive of the slider 402. When the end of the limit rod 406 is against the side wall of the fixed block 50, the two sliders 402 are stopped from approaching each other, and then the two heat stripping clamp bodies 30 are opened. The two ends of the ribbon optical fiber 90 are respectively installed in the embedding holes 301 of the two heat stripping clamp bodies 30, and then the two heat stripping clamp bodies 30 are buckled. After the operation is completed, the human hand leaves the range of information obtained by the first laser sensor 701, and the second laser sensor 703 will obtain the position of the ribbon optical fiber 90 in the groove 502. Position information: When the optical fiber ribbon 90 is positioned in the groove 502, the intermediate relay 702 obtains the above two information and controls the cylinder 603 to start and extend the pneumatic rod 602. The pneumatic rod 602 presses the optical fiber ribbon 90 to limit it to the groove 502. At the same time, the intermediate relay 702 opens the solenoid valve 802, so that the vacuum generator 801 is connected to the negative pressure hole. The cooperation of the groove 502, the negative pressure hole and the pneumatic rod 602 can accurately limit the position of the optical fiber ribbon 90. In this process, it can ensure that human hands are away from the pneumatic rod 602, reducing the risk of pressure injury to the operator. It can also detect in advance whether the optical fiber ribbon 90 is located in the groove 502, thereby improving the intelligence and safety of the entire precision guided bidirectional thermal stripping pliers.

[0050] Then, the two heat stripping clamp bodies 30 perform heat-melting treatment on the plastic sheaths on both ends of the ribbon optical fiber 90. After 8-20 seconds of heat melting, the two sliders 402 are controlled to move away from each other. At this time, the heat stripping clamp body 30 drives the two ends of the ribbon optical fiber 90 to move away from each other, separating the heat-melted plastic sheath from the optical fiber. When the adapter 404 abuts against the limit block 403, the slider 402 stops moving. During this process, the negative pressure of the pneumatic rod 602 and the negative pressure hole can fully act on the middle part of the ribbon optical fiber 90, so that the two ends of the ribbon optical fiber 90 can be fully and stably separated from the plastic sheath under the action of the heat stripping clamp body 30. Moreover, since the bottom surface of the groove 502 and the bottom surface of the embedding hole 301 are located on the same horizontal plane, when the plastic sheath is separated from the optical fiber, the tension at the end of the optical fiber is stable, which can effectively prevent the end of the ribbon optical fiber 90 from bending or breaking, and can simultaneously perform heat stripping on both ends of the ribbon optical fiber 90 during the entire process, and the fiber stripping efficiency is improved by about 1.5 times.

[0051] After the hot stripping process at both ends of the optical fiber ribbon 90 is completed, the operator approaches the first laser sensor 701 with his / her hand. The first laser sensor 701 transmits the information of the approach of the operator's hand to the intermediate relay 702. The intermediate relay 702 controls the solenoid valve 802 to close, and at the same time controls the cylinder 603 to drive the pneumatic rod 602 to shorten. At this time, the hot stripping clamp body 30 is opened, the processed optical fiber ribbon 90 is removed, and the plastic sheath inside the hot stripping clamp body 30 is cleaned. Then, another optical fiber ribbon 90 to be hot stripped can be installed. The entire operation is simple and convenient, and the stripping efficiency of the optical fiber ribbon 90 is significantly improved.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. 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 solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. Precision guided bidirectional thermal stripping pliers, including a bottom plate, characterized in that: Also includes: Two thermal stripping clamp bodies, each of which is provided with an embedding hole for embedding the optical fiber end portion, the embedding holes on the two thermal stripping clamp bodies being opposite to each other; A guide rail, wherein the guide rail is fixedly mounted on the base plate; A plurality of slide blocks are controlled to be mounted on the guide rails, and the hot stripping pliers body is fixedly mounted on the slide blocks; A fixing block is located between the two thermal stripping pliers bodies, the fixing block being fixedly mounted on the bottom plate, with one end of the fixing block away from the bottom plate being opposite to the embedding hole; The fixing block is provided with a groove for placing the optical fiber, the end of the groove is opposite to the embedding hole, and the bottom surface of the groove and the bottom surface of the embedding hole are located on the same horizontal plane; shell; A negative pressure hole for adsorbing the optical fiber is provided in the groove of the fixing block, and a vacuum generator and a solenoid valve for controlling whether the vacuum generator is connected to the negative pressure hole are fixedly installed on the top of the shell by bolts.

2. The precision guided bidirectional thermal stripping pliers according to claim 1, characterized in that: Also includes: A column, wherein the column is fixedly mounted on the base plate; A vertically arranged gas pressure rod, the lower end of which passes through the column and faces the groove, and the gas pressure rod can abut against the optical fiber in the groove or the top surface of the fixing block; The cylinder controls the lifting of the pneumatic rod, and the cylinder is fixedly installed on the base plate.

3. The precision guided bidirectional thermal stripping pliers according to claim 2, characterized in that: The fixed block is provided with a mounting hole for the guide rail to pass through, and a limit rod with adjustable axial position is provided on the side wall of the slider or the hot stripping pliers body. The axis of the limit rod is parallel to the axis of the guide rail, and the end of the limit rod close to the fixed block can be against the side of the fixed block.

4. The precision guided bidirectional thermal stripping pliers according to claim 3, characterized in that: It also includes a limiting block, which is adjustably mounted on the bottom plate, and a side wall of the limiting block can abut against a side of the slider or the limiting rod away from the fixed block.

5. The precision guided bidirectional thermal stripping pliers according to claim 4, characterized in that: Also includes: A first laser sensor for detecting the position of a human hand, wherein the first laser sensor is fixedly mounted on the column; The intermediate relay, the first laser sensor and the cylinder are electrically connected to the intermediate relay. When the first laser sensor detects a human hand approaching, the intermediate relay controls the pneumatic rod to move upward through the cylinder; when the first laser sensor does not detect a human hand, the intermediate relay controls the pneumatic rod to move downward through the cylinder.

6. The precision guided bidirectional thermal stripping pliers according to claim 5, characterized in that: It also includes a second laser sensor for detecting whether the optical fiber is located in the groove. The second laser sensor is opposite to the groove. The second laser sensor is electrically connected to the intermediate relay. When the second laser sensor detects that the optical fiber is not located in the groove, the intermediate relay controls the pneumatic rod through the cylinder to pause moving down or up; when the second laser sensor detects that the optical fiber is located in the groove, the intermediate relay controls the pneumatic rod to move down through the cylinder.

7. The precision guided bidirectional thermal stripping pliers according to claim 6, characterized in that: The vacuum generator is fixedly mounted on the bottom plate; the solenoid valve is electrically connected to the intermediate relay.

8. The precision guided bidirectional thermal stripping pliers according to claim 7, characterized in that: It also includes an adapter fixed between the hot stripping pliers body and the slider. A clamping block for clamping the limit rod is fixedly installed on the side wall of the adapter. The side wall of the adapter can be against the side wall of the fixed block or the limit block.

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