A mechanical property detection device for an optical fiber flexible connector

Abstract

The present application discloses a device for detecting the mechanical properties of an optical fiber active connector, which belongs to the technical field of optical fiber connector testing. It includes a tensile testing machine, which has two stretching heads arranged up and down; the stretching head includes two clamping mechanisms for clamping the optical fiber active connector; a connecting block, on which a connecting block is provided; a tensile testing machine claw, which is slidably provided on the connecting block; a detection assembly, which is provided on the connecting block; a clamping wheel, which is provided in an installation cavity; a mounting frame, which is slidably provided in the installation cavity; and a self-locking motor, which is fixedly provided on the mounting frame. The beneficial effect of the present application is that it provides a device for detecting the mechanical properties of an optical fiber active connector, which provides a clamping wheel and a mounting frame, and when slippage occurs during the tensile test, the clamping wheel is rotated to adjust the clamping position so that the connector continues to be clamped in the initial clamping area, thereby avoiding the clamping position change due to slippage, which affects the detection result.

Description

Technical Field

[0001] The present application relates to the technical field of optical fiber connector testing, and in particular to a device for detecting the mechanical properties of an optical fiber active connector. Background Art

[0002] A fiber optic connector is a device that provides a removable (removable) connection between optical fibers. It precisely butts the two fiber ends together to maximize the coupling of light energy from the transmitting fiber to the receiving fiber, while minimizing the impact of its presence on the optical link. These are fundamental requirements for fiber optic connectors. To ensure a secure connection, the mechanical properties of these connectors must be tested. Currently, fiber optic connectors primarily consist of two housings and a snap-fit connection that connects the two housings. During use, external forces exert pressure on the connectors and the conductors. When these forces exceed a certain level, the connectors can malfunction. Existing testing methods for fiber optic connectors primarily involve applying external forces to the connector using a tensile testing machine to determine the maximum tensile force required to prevent failure. Connector failure typically occurs at the snap-fit point or within the housing. To identify the failure site, testing the force limits of the snap-fit point and the tensile strength limits of the housing is necessary to facilitate future improvements. When testing the clamping part, the clamping position needs to be as close to the clamping part as possible to avoid being affected by the housing. To prevent the clamping part from slipping and affecting the test results of the clamping part, a larger clamping force is required. However, a larger clamping force will squeeze the connector and affect the final tensile test results. Therefore, the clamping force should be as small as possible to avoid slipping and reduce the impact of the clamping force on the tensile test results.

[0003] Therefore, a device for detecting the mechanical properties of an optical fiber active connector is needed to solve the above problems. Summary of the Invention

[0004] The content of this application is used to briefly introduce concepts that will be described in detail in the detailed description section below. The content of this application is not intended to identify key features or essential features of the technical solution for which protection is sought, nor is it intended to limit the scope of the technical solution for which protection is sought.

[0005] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a mechanical property testing device for an optical fiber active connector, including: a tensile testing machine, the tensile testing machine has two stretching heads arranged up and down; the stretching head includes two clamping blocks, the two clamping blocks move relative to each other, and a clamping mechanism is provided on the clamping block, and the two clamping mechanisms are used to clamp the optical fiber active connector; the clamping mechanism includes: a connecting block, two threaded columns are fixedly connected to the clamping block, the threaded column passes through the connecting block, a threaded sleeve is rotatably connected to the connecting block, the threaded sleeve is provided on the threaded column and is threadedly connected to the threaded column, and an installation cavity opening toward the clamping side is provided in the connecting block; the tensile testing machine includes: a tensile testing machine, the tensile testing machine includes two tensile heads arranged up and down; the tensile heads include two clamping blocks, the two clamping blocks move relative to each other, and a clamping mechanism is provided on the clamping block, and the two clamping mechanisms are used to clamp the optical fiber active connector; the clamping mechanism includes: a connecting block, two threaded columns are fixedly connected to the clamping block, the threaded column passes through the connecting block, a threaded sleeve is rotatably connected to the connecting block, the threaded sleeve is provided on the threaded column and is threadedly connected to the threaded column, and an installation cavity opening toward the clamping side is provided in the connecting block; The force machine clamp is slidably set on the connecting block and is used to clamp the optical fiber active connector; the detection component is set on the connecting block and is used to detect the slippage of the optical fiber active connector; the clamping wheel is set in the installation cavity and is used to adjust the clamping position; the installation frame is slidably set in the installation cavity and is used to install the clamping wheel; the adjustment component is used to install the clamping wheel and drive the clamping wheel to move and adjust the clamping force of the clamping wheel; the self-locking motor is fixedly set on the installation frame, and the power output end of the self-locking motor is fixedly connected to the drive shaft with one end inserted into the clamping wheel, and the drive shaft is fixedly connected to a pressure plate, and the drive shaft has an inner cavity for accommodating the pressure plate, and a pressure sensor is provided between the pressure plate and the side wall of the inner cavity.

[0006] By setting the clamping wheel and the mounting frame, when slippage occurs during the tensile test, the clamping wheel is rotated to adjust the clamping position so that it continues to be clamped in the initial clamping area, avoiding the clamping position change due to slippage, causing the clamping position of the clamping wheel to be away from the clamping part, and affecting the detection result of the clamping part.

[0007] Furthermore, the detection component includes: a sliding rod that is slidably set on the connecting block and one end is inserted into the connecting block, a reset spring is connected between the sliding rod and the connecting block, an encoder is fixedly connected in the connecting block, the input shaft of the encoder is fixedly connected to a gear, and the sliding rod is provided with teeth that mesh with the gear; a sliding cylinder is provided on the sliding rod, the sliding cylinder is slidably sleeved with a support rod, a positioning spring is connected between the support rod and the sliding cylinder, both ends of the positioning spring are fixedly connected to the support rod and the sliding cylinder respectively, and one end of the support rod is fixedly connected to a positioning plate that abuts against the optical fiber active connector.

[0008] When the clamping slips, the sliding rod moves, driving the gear to rotate, and the encoder detects the distance of the slip. When the clamping is in place, the positioning plate is pressed against the surface of the fiber optic connector by the positioning spring. When the clamping slips, the positioning plate will not move with the connecting block, causing the positioning plate to pull the sliding rod.

[0009] Furthermore, a first hydraulic oil chamber is opened in the connecting block, and hydraulic oil is provided in the first hydraulic oil chamber. At the same time, a push plate is slidably connected in the first hydraulic oil chamber, and the push plate divides the first hydraulic oil chamber into two areas that are not connected to each other. The push plate is fixedly connected to a push rod, and one end of the push rod extends out of the first hydraulic oil chamber and is fixedly connected to a mounting plate. A cylinder is fixedly connected to the mounting plate, and a clamping spring is connected between one end of the cylinder piston rod and the clamping jaws of the tensile machine. The cylinder piston rod is used to push the clamping jaws of the tensile machine for clamping;

[0010] A second hydraulic oil chamber is provided in the connecting block, a pull plate is slidably connected to the second hydraulic oil chamber, the pull plate divides the second hydraulic oil chamber into two areas that are not connected to each other, the second hydraulic oil chamber is connected to the first hydraulic oil chamber through a one-way valve, a push-pull rod with one end inserted into the second hydraulic oil chamber is fixedly connected to the mounting frame, and the push-pull rod is fixedly connected to the pull plate;

[0011] An oil storage chamber is provided in the connecting block. Hydraulic oil is provided in the oil storage chamber. The oil storage chamber is communicated with the first hydraulic oil chamber through a hydraulic oil pump, and the oil storage chamber is communicated with the second hydraulic oil chamber through a one-way valve.

[0012] By setting the first hydraulic oil chamber, the second hydraulic oil chamber and the oil storage chamber, when the mounting frame moves in the clamping direction, the pull plate will be pulled by the push-pull rod to suck the hydraulic oil in the oil storage chamber into the second hydraulic oil chamber. When the mounting frame returns to its original position, the hydraulic oil is squeezed into the first hydraulic oil chamber through the one-way valve, which drives the push plate to move, and then pushes the cylinder and the tensile machine jaws to move in the clamping direction through the push rod.

[0013] Furthermore, the adjustment component includes: bevel gear flanges are fixedly provided at both ends of the clamping wheel, two screws are rotatably connected to the mounting frame, one end of the screw is fixedly connected to a bevel gear meshing with the bevel gear flange, an adjustment cylinder is fixedly connected to the connecting block and is sleeved on the screw, and the adjustment cylinder is threadedly connected to the screw.

[0014] Through the provided screw and adjustment cylinder, when the clamping wheel rotates to adjust the clamping position, the installation frame moves under the action of the screw and the adjustment cylinder, thereby driving the clamping wheel to move, increasing the clamping force until no more slippage occurs. At this time, the clamping force can prevent slippage while also preventing the test results from being affected by excessive clamping force.

[0015] Furthermore, the clamping wheel is coaxially connected to the first conical wheel through an electromagnetic coupling, a transmission cylinder is rotatably connected in the connecting block, a transmission rod is slidably connected to the transmission cylinder along the axis, one end of the transmission rod is fixedly connected to the second conical wheel engaged with the first conical wheel, a turbine is fixedly provided on the transmission cylinder, and a thread that cooperates with the turbine is provided on the outer side of the threaded sleeve.

[0016] By arranging the threaded sleeve and the transmission cylinder, when the clamping wheel rotates to adjust the clamping position, the transmission cylinder is driven to rotate by the first conical wheel and the second conical wheel, and then the threaded sleeve is driven to rotate by the turbine, so that the connecting block can move.

[0017] Furthermore, the clamping wheel is rotatably connected to a plurality of circumferentially distributed adjustment slots, the adjustment wheel is rotatably connected in the adjustment slot, the adjustment has an end that rotatably cooperates with the side wall of the adjustment slot, a wiring harness reel is fixedly connected to the mounting frame, a pull rope is wound on the wiring harness reel, and the pull rope is also wound on the end, and a torsion spring is connected between the side walls of the end adjustment slot.

[0018] By means of the provided adjustment wheel, when the clamping wheel clamps the optical fiber active connector, the adjustment wheel contacts the optical fiber active connector, and the rotation of the adjustment wheel can drive the optical fiber active connector to rotate, thereby avoiding repeated slippage at the same position to damage the surface of the optical fiber active connector, and avoiding repeated slippage due to surface dirt or residual substances in some areas of the optical fiber active connector.

[0019] Furthermore, a distance measuring sensor is provided on the connecting block for detecting the distance between two connecting blocks distributed vertically.

[0020] Furthermore, the tensile machine is provided with a controller, which is electrically connected to the pressure sensor, self-locking motor, encoder, electromagnetic coupling, distance sensor, hydraulic oil pump, and cylinder. The controller receives encoder information and starts the self-locking motor. The controller receives pressure sensor information and controls the electromagnetic coupling.

[0021] The beneficial effects of this application are:

[0022] 1. Through the provided clamping wheel and mounting frame, when slippage occurs during the tensile test, the clamping wheel is rotated to adjust the clamping position so that it continues to be clamped in the initial clamping area, avoiding the change of the clamping position due to slippage and affecting the test results.

[0023] 2. Through the provided screw and adjustment cylinder, when the clamping wheel rotates to adjust the clamping position, the installation frame moves under the action of the screw and the adjustment cylinder, which in turn drives the clamping wheel to move, increasing the clamping force until no slip occurs. At this time, the clamping force can prevent slippage and also prevent the test results from being affected by excessive clamping force.

[0024] 3. Through the setting of the adjustment wheel, when the clamping wheel clamps the optical fiber active connector, the adjustment wheel contacts the optical fiber active connector, and the rotation of the adjustment wheel can drive the optical fiber active connector to rotate, thereby avoiding repeated slippage at the same position to damage the surface of the optical fiber active connector, and avoiding repeated slippage due to surface dirt or residual substances in some areas of the optical fiber active connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of this application are used to provide a further understanding of this application and make other features, purposes and advantages of this application more apparent. The drawings and descriptions of the exemplary embodiments of this application are used to explain this application and do not constitute an improper limitation on this application.

[0026] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the elements and components are not necessarily drawn to scale.

[0027] In the attached figure:

[0028] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0029] Figure 2 yes Figure 1 A schematic diagram of the installation of the connecting block in the embodiment;

[0030] Figure 3 yes Figure 1 A schematic diagram of the mounting cavity structure of the embodiment;

[0031] Figure 4 yes Figure 1 A schematic diagram of the sliding rod and support rod structure of the embodiment;

[0032] Figure 5 yes Figure 1 A schematic structural diagram of the installation frame in the embodiment;

[0033] Figure 6 yes Figure 1 A schematic diagram of the installation of the turbine in the embodiment;

[0034] Figure 7 yes Figure 1 Schematic diagram of the installation of the first cone wheel and the second cone wheel in the embodiment;

[0035] Figure 8 yes Figure 1 A schematic cross-sectional view of the clamping wheel in the embodiment;

[0036] Figure 9 yes Figure 1 A schematic cross-sectional view of the clamping wheel in the embodiment;

[0037] Figure 10 yes Figure 1 A schematic cross-sectional view of a connecting block in the embodiment;

[0038] Figure 11 yes Figure 1 A schematic structural diagram of the adjustment wheel in the embodiment;

[0039] Figure 12 yes Figure 1 Schematic diagram of the structure of the first hydraulic oil chamber in the embodiment.

[0040] 100, tensile testing machine; 101, tensile head; 102, clamping block; 103, connecting block; 104, threaded column; 105, threaded sleeve; 106, mounting cavity; 107, tensile testing machine clamping jaw; 108, cylinder; 109, clamping spring; 110, mounting frame; 111, clamping wheel; 112, self-locking motor; 113, drive shaft; 114, pressure plate; 115, pressure sensor; 116, bevel gear flange; 117, screw; 118, bevel gear; 119, adjusting cylinder; 120, first bevel gear; 121, transmission cylinder; 122, electromagnetic coupling; 123, transmission rod; 124, second bevel gear; 1 25. Turbine; 126. Sliding rod; 127. Return spring; 128. Encoder; 129. Gear; 130. Sliding cylinder; 131. Support rod; 132. Positioning spring; 133. Positioning plate; 134. First hydraulic oil chamber; 135. Push plate; 136. Push rod; 137. Mounting plate; 138. Second hydraulic oil chamber; 139. Pull plate; 140. Push-pull rod; 141. Oil storage chamber; 142. Hydraulic oil pump; 143. One-way valve; 144. Adjusting slot; 145. Adjusting wheel; 146. Terminal; 147. Harness reel; 148. Torsion spring; 149. Pull rope; 150. Distance sensor. DETAILED DESCRIPTION

[0041] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.

[0042] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0043] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0044] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".

[0045] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0046] Reference Figure 1-12 A device for testing the mechanical properties of an optical fiber active connector comprises: a tensile testing machine 100, a stretching head 101, a clamping block 102, a connecting block 103, a threaded column 104, a threaded sleeve 105, an installation cavity 106, and a tensile testing machine clamp. The tensile testing machine 100 is a prior art, wherein the stretching heads 101 are arranged up and down on the tensile testing machine 100. The optical fiber active connector is fixed on two stretching heads 101, and the two stretching heads 101 move in opposite directions to perform stretching, wherein the stretching heads 101 clamp and fix the optical fiber active connector through two clamping blocks 102 that can move relative to each other. A connecting block 103 is provided on the clamping block 102, and two threaded columns 104 are fixedly connected to the clamping block 102. The threaded column 104 passes through the connecting block 103, and a threaded sleeve 105 is rotatably connected to the connecting block 103. The threaded sleeve 105 is sleeved on the threaded column 104 and is threadedly connected to the threaded column 104. The threaded sleeve 105 and the threaded column 104 can be self-locking. The tensile testing machine's jaws slide onto a connecting block 103. A cylinder 108 is mounted on this block, with a clamping spring 109 connected between the piston end of cylinder 108 and the tensile testing machine's jaws. The two ends of clamping spring 109 are fixed to the piston end of cylinder 108 and the tensile testing machine's jaws, respectively. When cylinder 108 is activated, the piston end pushes the tensile testing machine's jaws to move, clamping them. The fiber optic connector primarily consists of a housing and a clamping portion, which connects the two fiber optic connectors.

[0047] When testing the clamping part of a fiber optic active connector, different parts need to be tested. At this time, only tensile force is applied to that part. However, if the clamp slips during the test, the part bearing the tensile force will change, affecting the test. At the same time, because the fiber optic active connector is relatively fragile, excessive clamping force can damage the fiber optic active connector. Therefore, the clamping force must be as small as possible to avoid slippage. This leads to the following problem: when the clamping force is too small, slippage will occur during the tensile test. To prevent the clamping position from changing, the following solution is adopted.

[0048] An installation cavity 106 is provided in the connecting block 103, and the installation cavity 106 opens toward the clamping side. A mounting frame 110 is slidably connected in the installation cavity 106, and a clamping wheel 111 is rotatably provided on the installation frame 110. A self-locking motor 112 is fixedly provided on the installation frame 110, and the power output end of the self-locking motor 112 is fixedly connected to a drive shaft 113 whose one end is inserted into the clamping wheel 111. The drive shaft 113 is fixedly connected to a pressure plate 114, and the drive shaft 113 has an inner cavity for accommodating the pressure plate 114. A pressure sensor 115 is provided between the pressure plate 114 and the side wall of the inner cavity. When clamping slippage occurs, the self-locking motor 112 is started, and then the clamping wheel 111 is driven to rotate through the drive shaft 113 and the pressure plate 114. When the self-locking motor 112 is started, it drives the installation frame 110 and the clamping wheel 111 to move in the clamping direction, and at the same time drives the clamping wheel 111 to rotate. When the clamping wheel 111 contacts the optical fiber connector, the pressure sensor 115 detects pressure.

[0049] The clamping wheel 111 is fixedly provided with bevel gear flanges 116 at both ends. Two screws 117 are rotatably connected to the mounting frame 110. One end of the screw 117 is fixedly connected to a bevel gear 118 that meshes with the bevel gear flange 116. An adjustment cylinder 119 is fixedly connected to the connecting block 103 and is sleeved on the screw 117. The adjustment cylinder 119 is threadedly connected to the screw 117 and can self-lock with the screw 117. When the self-locking motor 112 is started, it drives the clamping wheel 111 to rotate, and then drives the screw 117 to rotate under the cooperation of the bevel gear flange 116 and the bevel gear 118. Under the action of the adjustment cylinder 119, the mounting frame 110 is driven to move in the clamping direction, and the clamping wheel 111 is also driven to move in the clamping direction.

[0050] The clamping wheel 111 is coaxially connected to the first bevel gear 120 via an electromagnetic coupling 122. Two transmission cylinders 121 are rotatably connected within the connecting block 103, and the two transmission cylinders 121 are connected via a transmission belt. A transmission rod 123 is slidably connected to the inner axis of one transmission cylinder 121. One end of the transmission rod 123 is fixedly connected to a second bevel gear 124 that meshes with the first bevel gear 120. A turbine 125 is fixedly mounted on the transmission cylinder 121, and the outer surface of the threaded sleeve 105 is provided with threads that mate with the turbine 125.

[0051] When the pressure sensor 115 detects pressure, the controller controls the electromagnetic coupling 122, so that the clamping wheel 111 drives the first cone wheel 120 to rotate, and then the transmission rod 123 and the transmission cylinder 121 rotate, and the threaded sleeve 105 is driven to rotate under the action of the turbine 125, thereby driving the connecting block 103 to move. At the same time, the clamping wheel 111 also rolls along the optical fiber movable connector, so that the connecting block 103 returns to the initial clamping position.

[0052] To address the problem of detecting slippage, the following solution is adopted: a sliding rod 126 is slidably mounted on the connecting block 103, with one end inserted into the connecting block 103. A return spring 127 is connected between the sliding rod 126 and the connecting block 103. An encoder 128 is fixedly connected to the connecting block 103. The input shaft of encoder 128 is fixedly connected to a gear 129. The sliding rod 126 is provided with teeth that mesh with the gear 129. A sliding cylinder 130 is provided on the sliding rod 126. A support rod 131 is slidably mounted on the sliding cylinder 130. A positioning spring 132 is connected between the support rod 131 and the sliding cylinder 130. The two ends of the positioning spring 132 are fixedly connected to the support rod 131 and the sliding cylinder 130, respectively. One end of the support rod 131 is fixedly connected to a positioning plate 133 that abuts the optical fiber connector. The positioning plate 133 is provided with anti-slip grooves. When the clamp slips, the movement of the sliding rod 126 drives the gear 129 to rotate, and the encoder 128 detects the distance of the slippage. By means of the provided sliding cylinder 130 and the supporting rod 131 , when clamping, the positioning plate 133 is made to fit on the surface of the optical fiber connector under the action of the positioning spring 132 .

[0053] When clamping slippage occurs, encoder 128 transmits a signal to the controller. The controller first activates self-locking motor 112, driving mounting frame 110 in the clamping direction, causing clamping wheel 111 to contact the fiber optic connector. Self-locking motor 112 also drives clamping wheel 111 to rotate. The controller then activates cylinder 108, causing one end of the piston rod to retract, and the tensile testing machine jaws no longer clamp. When clamping wheel 111 contacts the fiber optic connector, pressure sensor 115 detects pressure. When the pressure reaches a threshold, a signal is transmitted to the controller, which controls electromagnetic coupling 122, causing clamping wheel 111 to rotate first cone wheel 120. As clamping wheel 111 rotates, threaded sleeve 105 also rotates, allowing the connection block 103 to adjust its position with the cooperation of threaded column 104. Then, connection block 103 and clamping wheel 111 move synchronously, and clamping wheel 111 rolls along the surface of the fiber optic connector back to its initial position. When the connecting block 103 returns to the initial position, the encoder 128 transmits a signal to the controller. The controller first controls the cylinder 108 to start, so that one end of the piston rod extends and the tensile machine clamps. Then the self-locking motor 112 is controlled to start the reverse output power, driving the installation frame 110 to move in the opposite direction of the clamping direction. At this time, the clamping wheel 111 is separated from the optical fiber active connector, and the pressure sensor 115 no longer detects pressure. At this time, the controller controls the electromagnetic coupling 122, and the clamping wheel 111 no longer drives the first cone wheel 120 to rotate.

[0054] Since the clamping slips, it is necessary to increase the clamping force and adopt the following solution.

[0055] A first hydraulic oil chamber 134 is defined within the connecting block 103 and is filled with hydraulic oil. A push plate 135 is slidably connected to the first hydraulic oil chamber 134, dividing the first hydraulic oil chamber 134 into two mutually exclusive areas. A push rod 136 is fixedly connected to the push plate 135. One end of the push rod 136 extends out of the first hydraulic oil chamber 134 and is fixedly connected to a mounting plate 137, which slidably engages with the connecting block 103. The cylinder 108 is fixedly mounted on the mounting plate 137. A second hydraulic oil chamber 138 is defined within the connecting block 103 and is slidably connected to a pull plate 139. The pull plate 139 divides the second hydraulic oil chamber 138 into two mutually exclusive areas, connecting the second hydraulic oil chamber 138 to the first hydraulic oil chamber 134. Mounting frame 110 is fixedly connected to a push-pull rod 140, one end of which is inserted into second hydraulic oil chamber 138. Push-pull rod 140 is also fixedly connected to pull plate 139. Connecting block 103 defines an oil reservoir 141, which contains hydraulic oil. This reservoir 141 is connected to first hydraulic oil chamber 134 via a hydraulic oil pump 142, and to second hydraulic oil chamber 138 via a one-way valve 143. When mounting frame 110 moves in the clamping direction, push-pull rod 140 pulls pull plate 139, drawing the hydraulic oil from reservoir 141 into second hydraulic oil chamber 138. When mounting frame 110 returns to its original position, the one-way valve 143 squeezes the hydraulic oil into first hydraulic oil chamber 134, which in turn drives push plate 135, which in turn drives cylinder 108 and the tensile machine jaws in the clamping direction via push rod 136. Since the push rod 136 pushes the cylinder 108 to move in the clamping direction, when one end of the piston rod of the cylinder 108 extends, the deformation of the clamping spring 109 is inconsistent, thereby increasing the clamping force of the tensile machine jaws.

[0056] In order to avoid repeated slippage at the same location and damage to the surface of the optical fiber connector, it is necessary to adjust the clamping position of the tensile testing machine jaws on the side of the optical fiber connector, so the following solution is adopted.

[0057] The clamping wheel 111 is rotatably connected to a plurality of circumferentially distributed adjustment slots 144. An adjustment wheel 145 is rotatably connected within the adjustment slots 144. The adjustment device has an end 146 that rotatably engages with the side walls of the adjustment slots 144. A harness reel 147 is fixedly connected to the mounting frame 110. A pull rope 149 is wound around the harness reel 147. The pull rope 149 is also wound around the end 146. A torsion spring 148 is connected between the end 146 and the side walls of the adjustment slots 144. When the clamping wheel 111 rotates, the pull rope 149 is wound around the harness reel 147, which in turn rotates the adjustment wheel 145. At this time, the adjustment wheel 145 contacts the side of the optical fiber connector, thereby driving the optical fiber connector to rotate and adjusting the clamping position of the tensile testing machine's jaws.

[0058] A distance measuring sensor 150 is provided on the connecting block 103 for detecting the distance between two connecting blocks 103 arranged one above the other.

[0059] The tensile machine 100 is provided with a controller, which is electrically connected to the pressure sensor 115, the self-locking motor 112, the encoder 128, the electromagnetic coupling 122, the distance sensor 150, and the hydraulic oil pump 142. The controller receives information from the encoder 128 and starts the self-locking motor 112. The controller receives information from the encoder 128 and controls the cylinder 108 to start. The controller receives information from the pressure sensor 115 and controls the electromagnetic coupling 122.

[0060] Working process or working principle:

[0061] 1. Fix the two connected fiber optic connectors on the two tensile heads 101 respectively, with the clamping position of the tensioning machine jaws close to the clamping part. By controlling the clamping blocks 102 to approach each other, the positioning plate 133 abuts the side of the fiber optic connector. By starting the cylinder 108 and fully extending the piston end of the cylinder 108, the two tensioning machine jaws clamp on the fiber optic connector and compress the clamping spring 109. At this time, the tensioning machine 100 starts tension detection, and the tension gradually increases. When the clamping slips, the sliding rod 126 rotates the input shaft of the encoder 128, and the encoder 128 transmits a signal to the controller. The controller controls the self-locking motor 112 to start, and the self-locking motor 112 drives the clamping wheel 111 to rotate. Under the action of the screw 117 and the adjustment cylinder 119, the mounting frame 110 and the clamping wheel 111 move in the clamping direction. When the mounting frame 110 moves, the push-pull rod 140 is pulled and the hydraulic oil in the oil storage chamber 141 is sucked into the second hydraulic chamber. The controller controls the movement of the mounting frame 110 to its end position, and the cylinder 108 is activated to disengage the clamping jaws of the tensile testing machine. When the clamping wheel 111 contacts the side of the optical fiber connector, the pressure sensor 115 detects that the pressure has reached a threshold and transmits a signal to the controller. The controller then controls the electromagnetic coupling 122, causing the clamping wheel 111 to rotate the first conical wheel 120, which then cooperates with the second conical wheel. Under the action of the turbine 125, the threaded sleeve 105 rotates, causing the connecting block 103 to move. At this time, the clamping wheel 111 rolls on the side of the optical fiber connector.

[0062] 2. When the clamping wheel 111 rotates, the adjusting wheel 145 is driven to rotate under the action of the harness tray 147 and the pull rope 149, and then the optical fiber connector is rotated to adjust the clamping position of the side of the optical fiber connector.

[0063] 3. After the connection block 103 moves to the initial clamping position, the sliding rod 126 returns to its initial rotation, and the encoder 128 transmits a signal to the cylinder 108, causing the piston rod end of the cylinder 108 to fully extend again. The controller then controls the self-locking motor 112 to output power in the reverse direction, causing the clamping wheel 111 to flip, and the installation frame 110 to move in the opposite direction of the clamping direction. The push-pull rod 140 squeezes the hydraulic oil in the second hydraulic chamber into the first hydraulic chamber, which then moves the cylinder 108, compressing the clamping spring 109, increasing the deformation of the clamping spring 109 and the clamping force. When the installation frame 110 moves in the opposite direction of the clamping direction, the clamping wheel 111 will be separated from the surface of the optical fiber connector. At this time, the pressure sensor 115 transmits a signal to the controller, which controls the electromagnetic coupling 122 so that the clamping wheel 111 no longer drives the first cone wheel 120 to rotate, and the connection block 103 will not move.

[0064] 4. When the tension increases and causes the clamp to slip again, repeat the above operation. After the detection is completed, the hydraulic oil in the first hydraulic chamber is returned to the oil storage chamber 141 by starting the hydraulic oil pump 142.

[0065] The above descriptions are merely some preferred embodiments of the present disclosure and illustrate the underlying technical principles. Those skilled in the art should understand that the scope of the invention encompassed by the embodiments of the present disclosure is not limited to technical solutions formed by specific combinations of the aforementioned technical features. It also encompasses other technical solutions formed by any combination of the aforementioned technical features or their equivalents, without departing from the aforementioned inventive concept. For example, a technical solution formed by replacing the aforementioned features with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A device for detecting the mechanical properties of an optical fiber connector, characterized in that: include: A tensile testing machine (100), the tensile testing machine (100) having two tensile heads (101) arranged one above the other; The stretching head (101) comprises two clamping blocks (102), the two clamping blocks (102) move relative to each other, and a clamping mechanism is provided on the clamping blocks (102), and the two clamping mechanisms are used to clamp the optical fiber active connector; The clamping mechanism comprises: A connecting block (103) and a clamping block (102) are fixedly connected to two threaded columns (104), the threaded columns (104) pass through the connecting block (103), and a threaded sleeve (105) is rotatably connected to the connecting block (103), the threaded sleeve (105) is sleeved on the threaded column (104) and is threadedly connected to the threaded column (104), and a mounting cavity (106) is opened in the connecting block (103) and is opened toward the clamping side; A tensile testing machine clamping jaw is slidably arranged on the connecting block (103) and is used for clamping the optical fiber active connector; A detection component, arranged on the connection block (103), for detecting the slippage of the optical fiber active connector; A clamping wheel (111), disposed in the mounting cavity (106), for adjusting a clamping position; A mounting frame (110) is slidably disposed in the mounting cavity (106) and is used for mounting a clamping wheel (111); An adjustment assembly, used for installing the clamping wheel (111) and driving the clamping wheel (111) to move, and adjusting the clamping force of the clamping wheel (111); A self-locking motor (112) is fixedly mounted on the mounting frame (110). A power output end of the self-locking motor (112) is fixedly connected to a drive shaft (113) having one end inserted into the clamping wheel (111). The drive shaft (113) is fixedly connected to a pressure plate (114). The drive shaft (113) has an inner cavity for accommodating the pressure plate (114). A pressure sensor (115) is provided between the pressure plate (114) and a side wall of the inner cavity.

2. The mechanical performance detection device for an optical fiber active connector according to claim 1, characterized in that: The detection component comprises: a sliding rod (126) slidably arranged on the connecting block (103) and having one end inserted into the connecting block (103); a reset spring (127) is connected between the sliding rod (126) and the connecting block (103); an encoder (128) is fixedly connected in the connecting block (103); an input shaft of the encoder (128) is fixedly connected to a gear (129); a tooth pattern meshing with the gear (129) is provided on the sliding rod (126); a sliding cylinder (130) is provided on the sliding rod (126); a support rod (131) is slidably sleeved on the sliding cylinder (130); a positioning spring (132) is connected between the support rod (131) and the sliding cylinder (130); two ends of the positioning spring (132) are fixedly connected to the support rod (131) and the sliding cylinder (130), respectively; one end of the support rod (131) is fixedly connected to a positioning plate (133) that abuts against the optical fiber active connector.

3. The mechanical performance detection device of an optical fiber active connector according to claim 2, characterized in that: A first hydraulic oil chamber (134) is provided in the connecting block (103), and hydraulic oil is provided in the first hydraulic oil chamber (134). At the same time, a push plate (135) is slidably connected in the first hydraulic oil chamber (134), and the push plate (135) divides the first hydraulic oil chamber (134) into two areas that are not connected to each other. The push plate (135) is fixedly connected to a push rod (136), and one end of the push rod (136) extends out of the first hydraulic oil chamber (134) and is fixedly connected to a mounting plate (137). A cylinder (108) is fixedly connected to the mounting plate (137), and a clamping spring (109) is connected between one end of the piston rod of the cylinder (108) and the clamping jaws of the tensile machine, and the piston rod of the cylinder (108) is used to push the clamping jaws of the tensile machine for clamping; A second hydraulic oil chamber (138) is provided in the connecting block (103), a pull plate (139) is slidably connected to the second hydraulic oil chamber (138), and the pull plate (139) divides the second hydraulic oil chamber (138) into two areas that are not connected to each other. The second hydraulic oil chamber (138) is connected to the first hydraulic oil chamber (134), and a push-pull rod (140) with one end inserted into the second hydraulic oil chamber (138) is fixedly connected to the mounting frame (110), and the push-pull rod (140) is fixedly connected to the pull plate (139); An oil storage chamber (141) is provided in the connecting block (103), and hydraulic oil is provided in the oil storage chamber (141). The oil storage chamber (141) is communicated with the first hydraulic oil chamber (134) via a hydraulic oil pump (142), and the oil storage chamber (141) is communicated with the second hydraulic oil chamber (138) via a one-way valve (143).

4. The mechanical performance detection device for an optical fiber active connector according to claim 3, characterized in that: The adjustment component includes: The clamping wheel (111) is fixedly provided with bevel gear flanges (116) at both ends. Two screw rods (117) are rotatably connected to the mounting frame (110). One end of the screw rod (117) is fixedly connected to a bevel gear (118) meshing with the bevel gear flange (116). An adjusting cylinder (119) sleeved on the screw rod (117) is fixedly connected inside the connecting block (103). The adjusting cylinder (119) is threadedly connected to the screw rod (117).

5. The mechanical performance detection device for an optical fiber active connector according to claim 4, characterized in that: The clamping wheel (111) is coaxially connected to the first cone wheel (120) via an electromagnetic coupling (122); a transmission cylinder (121) is rotatably connected to the connecting block (103); a transmission rod (123) is slidably connected to the transmission cylinder (121) along an axis; one end of the transmission rod (123) is fixedly connected to a second cone wheel (124) meshing with the first cone wheel (120); a turbine (125) is fixedly provided on the transmission cylinder (121); and a thread matching the turbine (125) is provided on the outer side of the threaded sleeve (105).

6. The mechanical performance detection device for an optical fiber active connector according to claim 2, characterized in that: The clamping wheel (111) is rotatably connected to a plurality of circumferentially distributed adjustment slots (144), and an adjustment wheel (145) is rotatably connected in the adjustment slot (144). The adjustment has an end (146) that rotatably cooperates with the side wall of the adjustment slot (144). The mounting frame (110) is fixedly connected to a harness disk (147), and a pull rope (149) is wound on the harness disk (147). The pull rope (149) is also wound on the end (146). A torsion spring (148) is connected between the end (146) and the side wall of the adjustment slot (144).

7. The mechanical performance detection device for an optical fiber active connector according to claim 6, characterized in that: A distance measuring sensor (150) is provided on the connecting block (103) for detecting the distance between two connecting blocks (103) distributed above and below.

8. The mechanical performance detection device for an optical fiber active connector according to claim 7, characterized in that: The tensile testing machine (100) is provided with a controller, which is electrically connected to a pressure sensor (115), a self-locking motor (112), an encoder (128), an electromagnetic coupling (122), a distance sensor (150), and a hydraulic oil pump (142). The controller receives information from the encoder (128) and starts the self-locking motor (112). The controller receives information from the encoder (128) and controls the cylinder (108) to start. The controller receives information from the pressure sensor (115) and controls the electromagnetic coupling (122).

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