Stretching and twisting all-in-one machine for optical cable

Abstract

The invention belongs to the technical field of optical cable testing, and particularly relates to an optical cable stretching and twisting all-in-one machine which comprises a base, a supporting frame is fixedly arranged on the base, two first lead screws are rotationally arranged on the supporting frame, a fixing seat is in threaded connection between the two first lead screws, a rotating shaft is rotationally arranged on the supporting frame, and a rotating shaft is arranged on the rotating shaft. A rotating seat opposite to the fixing seat is fixedly arranged at one end of the rotating shaft, and fixing units are fixedly arranged on the fixing seat and the rotating seat. Through the cooperation of the joint control unit and the linkage unit, when the optical cable is tested, stretching and twisting of the optical cable can be synchronously carried out, the complexity of separate testing is avoided, the testing efficiency is improved, the performance of the optical cable in the composite stress state can be truly reflected, the device only needs single-point driving, and the cost is low. Therefore, synchronous stretching and twisting operation can be realized, and the application cost of driving equipment is greatly saved.

Description

Technical Field

[0001] The invention belongs to the technical field of optical cable testing, and in particular relates to an optical cable stretching and twisting integrated machine. Background Art

[0002] In today's communications field, optical cables are key carriers of information transmission. In actual use and installation, they usually need to undergo certain pulling and twisting operations to be accurately installed. During this process, the optical cable will be subjected to pulling force and torque at the same time. If the resistance of the optical cable (including tensile performance and torsional performance, etc.) is insufficient, it is very likely to break or be damaged during installation, which will have a serious impact on the stability and reliability of communications. In view of this situation, before the optical cable leaves the factory, it is usually necessary to perform stretching and twisting tests on it to ensure that the quality and performance of the optical cable can meet the actual application needs.

[0003] However, in the field of optical cable testing, the pull test and the twist test are usually carried out separately. This testing method has many problems: first, the separate testing makes the testing process extremely cumbersome and complicated. When conducting the pull test, specific equipment and sites are required to test the tensile performance of the optical cable; after completing the pull test, the equipment and site need to be replaced to carry out the twist test to evaluate the torsional bearing capacity of the optical cable. Such frequent equipment replacement and site adjustment not only consumes a lot of time and manpower costs, but also greatly reduces the test efficiency, making the entire test process lengthy and inefficient. Second, it is difficult to accurately simulate the actual situation of the optical cable in actual use by separate testing. In actual applications, the optical cable is often subjected to the combined effects of tensile force and torsional force at the same time, and the separate pulling and twisting tests cannot truly reflect the performance of the optical cable under this composite stress state. This may cause the optical cable that performs well in the separate pull test and twisting test to fail in actual use due to the inability to withstand the tensile force and torsional force acting at the same time, thereby causing serious impact on the stability and reliability of communication.

[0004] To this end, we propose an integrated optical cable stretching and twisting machine to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide an integrated machine for stretching and twisting optical cables in order to solve the above problems.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: an optical cable stretching and twisting integrated machine, comprising a base, a support frame is fixedly arranged on the base, and two first lead screws are rotatably arranged on the support frame, a fixed seat is threadedly connected between the two first lead screws, a rotating shaft is rotatably arranged on the support frame, and a rotating seat arranged opposite to the fixed seat is fixedly arranged on one end of the rotating shaft, a fixing unit is fixedly arranged on the fixed seat and the rotating seat, and the two fixing units are used to fix the two ends of the test optical cable, a joint control unit matched with the two first lead screws is arranged on the support frame, a linkage unit is arranged between the rotating shaft and the first lead screw on the lower side, an optical displacement sensor arranged opposite to the fixed seat is fixedly arranged on the support frame, a rotary encoder is fixedly arranged on the support frame, and the rotary encoder is transmission-connected to the rotary shaft, a power regulation mechanism is fixedly arranged on the base, and the power regulation mechanism is electrically connected to the joint control unit, a PLC controller is fixedly arranged on the base, and the PLC controller is used to control the start and close procedures of each electrical equipment.

[0007] In the above-mentioned optical cable stretching and twisting integrated machine, the fixing unit includes a locking seat and two micro electric cylinders, the two micro electric cylinders are fixedly arranged on the locking seat, and the output end of the micro electric cylinder extends into the locking seat and is fixedly connected to a clamp seat, and the clamp seat is provided with serrated patterns.

[0008] In the above-mentioned optical cable stretching and twisting integrated machine, the joint control unit includes a servo motor and a pulley assembly. The servo motor is fixedly arranged on a support frame, and the servo motor is transmission connected to one end of a first screw located on the upper side, and the two first screws are transmission connected via a pulley assembly.

[0009] In the above-mentioned optical cable stretching and twisting machine, the linkage unit includes a driving gear and a telescopic driven gear unit, the driving gear is fixedly arranged on the first screw on the lower side, the telescopic driven gear unit is fixedly arranged on the rotating shaft, and the telescopic driven gear unit is meshed with the driving gear.

[0010] In the above-mentioned optical cable stretching and twisting integrated machine, the telescopic driven gear unit includes a driven gear seat and a plurality of tooth blocks, the driven gear seat is fixedly sleeved on the rotating shaft, and a plurality of tooth grooves are opened on the driven gear seat, the tooth blocks are slidably connected to the tooth grooves through permanent magnet blocks, and an electromagnetic block arranged opposite to the permanent magnet block is fixedly arranged in the tooth groove, and the electromagnetic block and the permanent magnet block are fixedly connected by a reset spring.

[0011] In the above-mentioned optical cable stretching and twisting integrated machine, the power control mechanism includes a control box, a sliding rheostat, a second lead screw and an insulating block, the control box is fixedly arranged on the base, and the sliding rheostat is fixedly arranged in the control box, the second lead screw is rotatably arranged in the control box, and the insulating block is threadedly connected to the second lead screw, the insulating block is fixedly connected to the sliding end of the sliding rheostat, and the sliding rheostat is electrically connected to the servo motor.

[0012] In the above-mentioned optical cable stretching and twisting integrated machine, a knob is rotatably provided on the regulating box, and the transmission shaft of the knob is transmission-connected to the second lead screw through a bevel gear assembly, and the thread lead angle of the second lead screw is smaller than the equivalent friction angle.

[0013] In the above-mentioned optical cable stretching and twisting integrated machine, a pointer is fixedly provided on the insulating block, and an open slot matching with the pointer is provided on the regulating box, and a power scale matching with the pointer is engraved on the regulating box.

[0014] In the above-mentioned optical cable stretching and twisting machine, two sliding magnetic blocks are fixedly arranged on the rotating seat, and an annular groove matching with the two sliding magnetic blocks is opened on the supporting frame, an annular electromagnetic sheet is embedded in the annular groove, and the annular electromagnetic sheet is in contact with the sliding magnetic blocks.

[0015] Compared with the existing technology, the advantages of an optical cable stretching and twisting machine are: Through the cooperation of the joint control unit and the linkage unit, the stretching and twisting of the optical cable can be carried out synchronously when testing the optical cable, which avoids the tediousness of separate testing and improves the test efficiency. It can also truly reflect the performance of the optical cable under this composite stress state. Moreover, the device only needs single-point drive to realize the synchronous stretching and twisting operations, which greatly saves the operating cost of the drive equipment.

[0016] By setting up a fixing unit, the two micro electric cylinders on the fixing unit can be used to control the two clamps to clamp and lock the ends of the optical cable, avoiding the tedious manual locking. In addition, the serrated pattern design on the clamp can greatly improve the stability of the clamp on the optical cable.

[0017] By setting up a power control unit, the staff can adjust the test power of the servo motor according to the needs of different types of optical cables, thereby realizing the force control of the optical cable tension and twist test.

[0018] By cooperating with the optical displacement sensor, rotary encoder and PLC sensor, the test amount of optical cable stretching and twisting can be preset as needed to avoid excessive stretching and excessive twisting, which will affect the accuracy of optical cable testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front perspective structural schematic diagram of an optical cable stretching and twisting integrated machine provided by the present invention; Figure 2 It is a side perspective structural schematic diagram of a telescopic driven gear unit of an optical cable stretching and twisting integrated machine provided by the present invention; Figure 3 It is a schematic diagram of the overall structure of a power control mechanism of an optical cable stretching and twisting integrated machine provided by the present invention; Figure 4 It is a front perspective structural schematic diagram of a power regulating mechanism of an optical cable stretching and twisting integrated machine provided by the present invention; Figure 5 It is a side perspective structural schematic diagram of a fixing unit of an optical cable stretching and twisting integrated machine provided by the present invention; Figure 6 for Figure 1 A schematic diagram of the enlarged structure at A in the middle; Figure 7 for Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0020] In the figure: 1 base, 2 support frame, 3 first lead screw, 4 fixed seat, 5 rotating shaft, 6 rotating seat, 7 fixed unit, 71 locking seat, 72 micro electric cylinder, 8 joint control unit, 81 servo motor, 82 pulley assembly, 9 linkage unit, 91 driving gear, 92 telescopic driven gear unit, 921 gear seat, 922 tooth block, 10 optical displacement sensor, 11 rotary encoder, 12 power control mechanism, 121 control box, 122 sliding rheostat, 123 second lead screw, 124 insulating block, 13 PLC controller, 14 clamp seat, 15 tooth groove, 16 permanent magnet block, 17 electromagnetic block, 18 reset spring, 19 knob, 20 bevel gear assembly, 21 pointer, 22 open slot, 23 power scale line, 24 sliding magnetic block, 25 annular slide groove, 26 annular electromagnetic sheet. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] like Figure 1-Figure 7As shown, a stretching and twisting machine for optical cables comprises a base 1, a support frame 2 is fixedly arranged on the base 1, and two first lead screws 3 are rotatably arranged on the support frame 2, a fixing seat 4 is threadedly connected between the two first lead screws 3, a rotating shaft 5 is rotatably arranged on the support frame 2, and a rotating seat 6 arranged opposite to the fixed seat 4 is fixedly arranged at one end of the rotating shaft 5, fixing units 7 are fixedly arranged on both the fixing seat 4 and the rotating seat 6, and the two fixing units 7 are used to fix the two ends of the test optical cable.

[0023] The fixing unit 7 includes a locking seat 71 and two micro-electric cylinders 72. The two micro-electric cylinders 72 are fixedly arranged on the locking seat 71, and the output end of the micro-electric cylinder 72 extends into the locking seat 71 and is fixedly connected to a clamping seat 14. A serrated pattern is provided on the clamping seat 14. The micro-electric cylinder 72 can be used to control the clamping seat 14 to clamp and lock the optical cable, and the serrated pattern on the clamping seat 14 can improve the stability of the clamping and locking of the clamping seat 14.

[0024] A joint control unit 8 that cooperates with the two first lead screws 3 is arranged on the support frame 2. The joint control unit 8 includes a servo motor 81 and a pulley assembly 82. The servo motor 81 is fixedly arranged on the support frame 2, and the servo motor 81 is transmission connected to one end of the first lead screw 3 located on the upper side. The two first lead screws 3 are transmission connected via the pulley assembly 82. Through the set pulley assembly 82, the servo motor 81 can control the two first lead screws 3 to rotate synchronously, avoiding the cost of adding additional driving equipment. In addition, the setting of the two first lead screws 3 allows both sides of the fixed seat 4 to be stably stressed, thereby ensuring the stability of the tensile test.

[0025] A linkage unit 9 is provided between the rotating shaft 5 and the first lead screw 3 at the lower side. The linkage unit 9 includes a driving gear 91 and a telescopic driven gear unit 92. The driving gear 91 is fixedly provided on the first lead screw 3 at the lower side, and the telescopic driven gear unit 92 is fixedly provided on the rotating shaft 5, and the telescopic driven gear unit 92 is meshed with the driving gear 91. Through the meshing transmission cooperation between the telescopic driven gear unit 92 and the driving gear 91, the rotating shaft 5 can rotate synchronously with the first lead screw 3, avoiding the cost of additional driving equipment, and can realize the simultaneous implementation of the tensile test and the torsion test, which not only avoids the tediousness of separate tests, improves the test efficiency, but also can truly reflect the performance of the optical cable under this composite stress state.

[0026] The telescopic driven gear unit 92 includes a driven gear seat 921 and a plurality of tooth blocks 922. The driven gear seat 921 is fixedly sleeved on the rotating shaft 5, and a plurality of tooth grooves 15 are opened on the driven gear seat 921. The tooth block 922 is slidably connected to the tooth groove 15 through a permanent magnet block 16, and an electromagnetic block 17 arranged opposite to the permanent magnet block 16 is fixedly arranged in the tooth groove 15. The electromagnetic block 17 and the permanent magnet block 16 are fixedly connected by a reset spring 18. Through the set electromagnetic block 17, when the optical cable twist test reaches the required level, the electromagnetic block 17 can be controlled to energize and magnetize the permanent magnet block 16, so that the tooth block 922 contracts, and the meshing state of the telescopic driven gear unit 92 and the driving gear 91 is released, thereby controlling the end of the optical cable twist test.

[0027] Two sliding magnets 24 are fixedly arranged on the swivel seat 6, and an annular groove 25 matching with the two sliding magnets 24 is opened on the support frame 2. An annular electromagnetic sheet 26 is embedded in the annular groove 25, and the annular electromagnetic sheet 26 is in contact with the sliding magnets 24. Through the set annular electromagnetic sheet 26, after the twisting test is completed, the annular electromagnetic sheet 26 can be started to attract the sliding magnets 24, thereby locking the swivel seat 6 to prevent the swivel seat 6 from rotating at will.

[0028] The support frame 2 is fixedly provided with an optical displacement sensor 10 arranged opposite to the fixed seat 4, the support frame 2 is fixedly provided with a rotary encoder 11, and the rotary encoder 11 is transmission-connected to the rotating shaft 5, the base 1 is fixedly provided with a power regulating mechanism 12, and the power regulating mechanism 12 is electrically connected to the joint control unit 8, the power regulating mechanism 12 includes a regulating box 121, a sliding rheostat 122, a second lead screw 123 and an insulating block 124, the regulating box 121 is fixedly provided on the base 1, and the sliding rheostat 122 is fixedly provided on the regulating box 1 21, the second lead screw 123 is rotatably set in the control box 121, and the insulating block 124 is threadedly connected to the second lead screw 123, the insulating block 124 is fixedly connected to the sliding end of the sliding rheostat 122, and the sliding rheostat 122 is electrically connected to the servo motor 81. Through the set second lead screw 123, the movement of the insulating block 124 can be controlled, and then the resistance value of the sliding rheostat 122 connected to the servo motor 81 circuit is adjusted to achieve the control of the power of the servo motor 81, so that the device can adjust the test force of the stretching knob as needed.

[0029] A knob 19 is rotatably provided on the control box 121, and the transmission shaft of the knob 19 is connected to the second lead screw 123 through a bevel gear assembly 20. The thread lead angle of the second lead screw 123 is smaller than the equivalent friction angle. The transmission coordination of the bevel gear assembly 20 makes it convenient for the staff to control the rotation of the second lead screw 123 through the knob 19. The thread lead angle design of the second lead screw 123 can realize self-locking of the insulating block 124 and the second lead screw 123, avoiding the tediousness of manual locking.

[0030] A pointer 21 is fixedly set on the insulating block 124, and an open groove 22 matching the pointer 21 is opened on the control box 121. A power scale line 23 matching the pointer 21 is engraved on the control box 121. Through the coordination of the set pointer 21 and the power scale line 23, the user can accurately adjust the output power of the servo motor 81 through the power control mechanism 12.

[0031] A PLC controller 13 is fixedly mounted on the base 1, and the PLC controller 13 is used to control the start and stop procedures of each electrical device.

[0032] The operating principle of the present invention is now described as follows: When using the device, the two ends of the optical cable to be tested are placed in the corresponding locking seats 71 respectively, and the PLC controller 13 controls each micro-electric cylinder 72 so that the clamping seat 14 on the micro-electric cylinder 72 clamps and locks the end of the optical cable. Then, the displacement limit parameters of the optical displacement sensor 10 and the rotation limit parameters of the rotary encoder 11 are preset by the PLC controller 13. Then, according to the needs, the knob 19 is turned. Under the transmission cooperation of the bevel gear assembly 20, the second lead screw 123 will rotate, so that the insulating block 124 drives the sliding end on the sliding rheostat 122 to move, changing the resistance value on the circuit of the servo motor 81, and then adjusting the output power of the servo motor 81. When the power scale line 23 indicated by the pointer 21 reaches the required value, stop turning the knob 19. Next, the servo motor 81 is started and rotated forwardly through the PLC controller 13. Under the transmission cooperation of the pulley assembly 82, the two first screws 3 will rotate synchronously. At this time, the fixed seat 4 will drive the optical cable to stretch to the left. At the same time, under the action of the linkage unit 9, the shaft 5 will rotate synchronously with the first screw 3 on the lower side, so that the swivel seat 6 can cooperate with the stretching process of the optical cable and twist the optical cable synchronously. When the number of twisting circles of the optical cable reaches the preset value, the rotary encoder 11 will feedback a signal to the PLC controller 13, so that the PLC controller 13 controls each electromagnetic block 17 to be energized and magnetized, thereby causing the electromagnetic block 17 to attract the corresponding permanent magnet block 16, so that the tooth block 922 contracts, thereby causing the telescopic driven gear unit 92 to release the meshing state with the driving gear 91, so that the optical cable stops twisting. At the same time, the PLC controller 13 controls the annular electromagnetic sheet 26 to be energized and magnetized to attract the sliding magnet block 24, so that the swivel seat 6 is locked to prevent the swivel seat 6 from rotating at will. As the optical cable is stretched, when the stretching displacement of the optical cable reaches a preset test value, the optical displacement sensor 10 will feedback a signal to the PLC controller 13, so that the PLC controller 13 controls the servo motor 81 to stop. At this point, the stretching and rotating synchronous test of the optical cable is completed. Subsequently, the staff can use the flaw detector to detect the overall quality of the optical cable after the test to determine whether the quality of the optical cable meets the standard requirements.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An optical cable stretching and twisting machine, comprising a base (1), characterized in that: The base (1) is fixedly provided with a support frame (2), and two first lead screws (3) are rotatably provided on the support frame (2), a fixed seat (4) is threadedly connected between the two first lead screws (3), a rotating shaft (5) is rotatably provided on the support frame (2), and a rotating seat (6) arranged opposite to the fixed seat (4) is fixedly provided at one end of the rotating shaft (5), a fixing unit (7) is fixedly provided on both the fixed seat (4) and the rotating seat (6), and the two fixing units (7) are used to fix the two ends of the test optical cable, and a joint control unit (8) matched with the two first lead screws (3) is provided on the support frame (2), and the rotating seat (6) is fixedly provided with a fixing unit (7) A linkage unit (9) is provided between the shaft (5) and the first lead screw (3) at the lower side; an optical displacement sensor (10) is fixedly provided on the support frame (2) and is arranged opposite to the fixed seat (4); a rotary encoder (11) is fixedly provided on the support frame (2), and the rotary encoder (11) is drivingly connected to the rotating shaft (5); a power control mechanism (12) is fixedly provided on the base (1), and the power control mechanism (12) is electrically connected to the linkage control unit (8); a PLC controller (13) is fixedly provided on the base (1), and the PLC controller (13) is used to control the start and stop procedures of various electrical equipment.

2. The optical cable stretching and twisting integrated machine according to claim 1, characterized in that: The fixing unit (7) comprises a locking seat (71) and two micro electric cylinders (72), the two micro electric cylinders (72) being fixedly arranged on the locking seat (71), and the output ends of the micro electric cylinders (72) extending into the locking seat (71) and fixedly connected to a clamping seat (14), the clamping seat (14) being provided with sawtooth patterns.

3. The optical cable stretching and twisting integrated machine according to claim 1, characterized in that: The joint control unit (8) comprises a servo motor (81) and a pulley assembly (82); the servo motor (81) is fixedly arranged on the support frame (2), and the servo motor (81) is transmission-connected to one end of a first lead screw (3) located on the upper side; and the two first lead screws (3) are transmission-connected to each other via the pulley assembly (82).

4. The optical cable stretching and twisting integrated machine according to claim 1, characterized in that: The linkage unit (9) comprises a driving gear (91) and a telescopic driven gear unit (92); the driving gear (91) is fixedly arranged on the first lead screw (3) at the lower side; the telescopic driven gear unit (92) is fixedly arranged on the rotating shaft (5); and the telescopic driven gear unit (92) is meshed with the driving gear (91).

5. The optical cable stretching and twisting integrated machine according to claim 4, characterized in that: The telescopic driven gear unit (92) comprises a driven gear seat (921) and a plurality of tooth blocks (922); the driven gear seat (921) is fixedly sleeved on the rotating shaft (5); a plurality of tooth grooves (15) are provided on the driven gear seat (921); the tooth blocks (922) are slidably connected to the tooth grooves (15) via permanent magnet blocks (16); an electromagnetic block (17) is fixedly arranged in the tooth groove (15) and is arranged opposite to the permanent magnet block (16); the electromagnetic block (17) and the permanent magnet block (16) are fixedly connected via a return spring (18).

6. The optical cable stretching and twisting integrated machine according to claim 3, characterized in that: The power control mechanism (12) comprises a control box (121), a sliding rheostat (122), a second lead screw (123) and an insulating block (124); the control box (121) is fixedly arranged on the base (1), and the sliding rheostat (122) is fixedly arranged in the control box (121); the second lead screw (123) is rotatably arranged in the control box (121), and the insulating block (124) is threadedly connected to the second lead screw (123); the insulating block (124) is fixedly connected to a sliding end of the sliding rheostat (122); and the sliding rheostat (122) is electrically connected to a servo motor (81).

7. The optical cable stretching and twisting integrated machine according to claim 6, characterized in that: The control box (121) is rotatably provided with a knob (19), and a transmission shaft of the knob (19) is transmission-connected to a second lead screw (123) via a bevel gear assembly (20), and a thread lead angle of the second lead screw (123) is smaller than an equivalent friction angle.

8. The optical cable stretching and twisting integrated machine according to claim 6, characterized in that: A pointer (21) is fixedly arranged on the insulating block (124), and an opening slot (22) matching with the pointer (21) is provided on the control box (121), and a power scale line (23) matching with the pointer (21) is engraved on the control box (121).

9. The optical cable stretching and twisting integrated machine according to claim 1, characterized in that: Two sliding magnetic blocks (24) are fixedly arranged on the rotating seat (6), and an annular sliding groove (25) matching with the two sliding magnetic blocks (24) is provided on the supporting frame (2), an annular electromagnetic sheet (26) is embedded in the annular sliding groove (25), and the annular electromagnetic sheet (26) is in contact with the sliding magnetic blocks (24).

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