Mechanical performance detection device of optical fiber movable connector

Abstract

The invention discloses a mechanical performance detection device for an optical fiber movable connector, and belongs to the technical field of optical fiber connector testing. Comprising a tensile machine which is provided with two stretching heads arranged up and down; the stretching head comprises two clamping mechanisms used for clamping an optical fiber movable connector. The connecting block is arranged on the clamping block; the tensile machine clamping jaw is arranged on the connecting block in a sliding manner; the detection assembly is arranged on the connecting block; the clamping wheel is arranged in the mounting cavity; the mounting frame is slidably arranged in the mounting cavity; and the self-locking motor is fixedly arranged on the mounting frame. The mechanical performance detection device for the optical fiber movable connector has the beneficial effects that through the arrangement of the clamping wheel and the mounting frame, when slippage occurs in a tensile test process, the clamping position is adjusted through rotation of the clamping wheel, so that the optical fiber movable connector is continuously clamped in an initial clamping area, the clamping position change caused by slippage is avoided, and the mechanical performance of the optical fiber movable connector is improved. The detection result is influenced.

Description

Technical Field

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

[0002] The fiber optic connector is a device for detachable (movable) connection between optical fibers. It precisely connects the two end faces of the optical fiber so that the light energy output by the transmitting optical fiber can be coupled to the receiving optical fiber to the maximum extent, and the impact on the system caused by its involvement in the optical link is minimized. This is the basic requirement of the fiber optic connector. In order to ensure the firm connection of the optical fiber, it is necessary to test the mechanical properties of the fiber optic connector. At present, the fiber optic connector is mainly composed of two shells and a clamping part for clamping the two shells, and the two shells are connected by clamping. During the use of the fiber optic connector, the force generated by external human factors will exert pressure on the connector and the wire. When a certain force is applied, the use of the connector will fail. The existing fiber optic connector detection method is mainly to apply external force to the connector through a tensile machine to detect the limit tension at which the connector will not fail; the connector failure is usually the failure of the clamping position or the failure of the shell part. In order to detect the failure part of the connector, it is necessary to detect the force limit of the connector clamping position and the tensile force limit of the shell part, so as to facilitate the subsequent improvement of the connector. 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 shell part. In order to avoid slippage of the clamping part and affect 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 needs to be as small as possible to avoid slippage and reduce the impact of the clamping force on the tensile test results.

[0003] Therefore, a mechanical property detection device for 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 introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[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 detection 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, the clamping block is fixedly connected with two threaded columns, the threaded column passes through the connecting block, a threaded sleeve is rotatably connected to the connecting block, the threaded sleeve is sleeved 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 used for clamping the optical fiber active connector; the detection component is set on the connecting block and used for detecting the slippage of the optical fiber active connector; the clamping wheel is set in the installation cavity and used for adjusting the clamping position; the installation frame is slidably set in the installation cavity and used for installing the clamping wheel; the adjustment component is used for installing the clamping wheel and driving the clamping wheel to move and adjusting the clamping force of the clamping wheel; the self-locking motor is fixedly set on the installation frame, the power output end of the self-locking motor is fixedly connected to the driving shaft with one end inserted into the clamping wheel, the driving shaft is fixedly connected to a pressure plate, the driving shaft has an inner cavity for accommodating the pressure plate, and a pressure sensor is set 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 position is adjusted by rotating the clamping wheel so that it continues to be clamped in the initial clamping area, thereby avoiding the clamping position being changed due to slippage, causing the clamping position of the clamping wheel to be away from the clamping part, thereby affecting the detection result of the clamping part.

[0007] Furthermore, the detection component includes: a sliding rod which is slidably set on the connecting block and one end of which 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 meshing with the gear; a sliding cylinder is provided on the sliding rod, a support rod is slidably sleeved on the sliding cylinder, a positioning spring is connected between the support rod and the sliding cylinder, two ends of the positioning spring are respectively fixedly connected to the support rod and the sliding cylinder, and one end of the support rod is fixedly connected to a positioning plate that abuts against the optical fiber active connector.

[0008] Through the provided sliding rod, when the clamping slips, the movement of the sliding rod drives the gear to rotate, and the distance of the slip is detected by the encoder. Through the provided sliding cylinder and support rod, when clamping, the positioning plate is attached to the surface of the optical fiber active connector under the action of the positioning spring. When the clamping slips, the positioning plate will not move with the connecting block, so that the positioning plate pulls the sliding rod.

[0009] Furthermore, a first hydraulic oil chamber is provided in the connecting block, and hydraulic oil is arranged in the first hydraulic oil chamber. Meanwhile, 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 which 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, and the cylinder piston rod is used to push the clamping jaws of the tensile machine for clamping; A second hydraulic oil chamber is provided in the connection block, a pull plate is slidably connected in the second hydraulic oil chamber, the pull plate divides the second hydraulic oil chamber into two areas which 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 having 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; An oil storage chamber is provided in the connection block, and 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.

[0010] 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 clamping jaws of the tensile machine to move in the clamping direction through the push rod.

[0011] 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 flanges, 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.

[0012] By setting the screw and the 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 detection result from being affected by excessive clamping force.

[0013] Furthermore, the clamping wheel is coaxially connected to the first bevel 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 bevel wheel meshing with the first bevel wheel, a turbine is fixedly provided on the transmission cylinder, and a thread matching the turbine is provided on the outer side of the threaded sleeve.

[0014] 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 cone wheel and the second cone wheel, and then the threaded sleeve is driven to rotate by the turbine, so that the connecting block can move.

[0015] Furthermore, the clamping wheel is rotatably connected to a plurality of circumferentially distributed adjustment grooves, an adjustment wheel is rotatably connected in the adjustment groove, the adjustment has an end that rotatably cooperates with the side wall of the adjustment groove, a wiring harness reel is fixedly connected to the mounting frame, a pull rope is wound on the wiring harness reel, the pull rope is also wound on the end, and a torsion spring is connected between the side walls of the end adjustment groove.

[0016] By means of the setting 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.

[0017] Furthermore, a distance measuring sensor is provided on the connection block for detecting the distance between two connection blocks distributed vertically.

[0018] 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.

[0019] The beneficial effects of this application are: 1. Through the setting of 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 change of the clamping position due to slippage and affecting the test results.

[0020] 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, thereby driving the clamping wheel to move, increasing the clamping force until no slippage occurs. At this time, the clamping force can prevent slippage and also prevent the detection result from being affected by excessive clamping force.

[0021] 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

[0022] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0023] 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 components and elements are not necessarily drawn to scale.

[0024] In the attached picture: Figure 1 is an overall schematic diagram according to an embodiment of the present application; Figure 2 yes Figure 1 A schematic diagram of the installation of the connecting block in the embodiment; Figure 3 yes Figure 1 A schematic diagram of the mounting cavity structure of the embodiment; Figure 4 yes Figure 1 A schematic diagram of the sliding rod and the supporting rod structure of the embodiment; Figure 5 yes Figure 1 A schematic diagram of the structure of the installation frame in the embodiment; Figure 6 yes Figure 1 A schematic diagram of the installation of the turbine in the embodiment; Figure 7 yes Figure 1 A schematic diagram of the installation of the first cone wheel and the second cone wheel in the embodiment; Figure 8 yes Figure 1 A schematic cross-sectional view of the clamping wheel in the embodiment; Fig. 9 yes Figure 1 A schematic cross-sectional view of a clamping wheel in the embodiment; Fig.10 yes Figure 1 A schematic cross-sectional view of a connecting block in the embodiment; Fig.11 yes Figure 1 A schematic diagram of the structure of the adjustment wheel in the embodiment; Fig.12 yes Figure 1 A schematic structural diagram of the first hydraulic oil chamber in the embodiment. Reference numerals

[0025] 100, tensile machine; 101, stretching head; 102, clamping block; 103, connecting block; 104, threaded column; 105, threaded sleeve; 106, installation cavity; 107, tensile machine clamping jaws; 108, cylinder; 109, clamping spring; 110, installation 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, adjustment cylinder; 120, first bevel wheel; 121, transmission cylinder; 122, electromagnetic coupling; 123, transmission rod; 124, second bevel wheel; 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. Adjustment slot; 145. Adjustment wheel; 146. Terminal; 147. Harness reel; 148. Torsion spring; 149. Pull rope; 150. Distance sensor. DETAILED DESCRIPTION

[0026] 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 being limited to the embodiments set forth herein. On the contrary, 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 only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0027] 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 can be combined with each other.

[0028] It should be noted that the concepts such as "first" and "second" mentioned in the present 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.

[0029] It should be noted that the modifications of "one" and "plurality" 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, it should be understood as "one or more".

[0030] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0031] Reference Figure 1-12A mechanical property testing device for an optical fiber active connector includes: a tensile 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 machine clamp. The tensile machine 100 is a prior art, and the stretching head 101 is arranged up and down on the tensile 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 head 101 clamps and fixes the optical fiber active connector through two clamping blocks 102 that can move relative to each other. A connecting block 103 is arranged on the clamping block 102, and two threaded columns 104 are fixedly connected to the clamping block 102, and the threaded column 104 passes through the connecting block 103, and a threaded sleeve 105 is rotatably connected to the connecting block 103, and the threaded sleeve 105 is sleeved on the threaded column 104 and is threadedly connected with the threaded column 104, and the threaded sleeve 105 and the threaded column 104 can be self-locking. The clamping jaws of the tensile machine are slidably arranged on the connecting block 103, and a cylinder 108 is arranged on the connecting block 103. A clamping spring 109 is connected between the piston end of the cylinder 108 and the clamping jaws of the tensile machine, and the two ends of the clamping spring 109 are respectively fixed on the piston end of the cylinder 108 and the clamping jaws of the tensile machine. When the cylinder 108 is started, the clamping jaws of the tensile machine are pushed to move through the piston end to clamp. The optical fiber active connector mainly includes a housing part and a clamping part, and the two optical fiber active connectors are connected through the clamping part.

[0032] When testing the clamping part of the optical fiber active connector, different parts need to be tested. At this time, only the tensile force is applied to this part. However, when the clamp slips during the test, the part that bears the tensile force will change, which will affect the test. At the same time, since the optical fiber active connector is relatively fragile, when the clamping force is too large, the optical fiber active connector will be damaged. Therefore, the clamping force applied needs to be as small as possible to avoid slipping. Therefore, the following problem exists: when the clamping force is small, slipping will occur during the tensile test. In order to avoid the change of the clamping position, the following solution is adopted.

[0033] An installation cavity 106 is provided in the connection block 103, and the installation cavity 106 opens toward the clamping side. An installation 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 a 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, and a pressure plate 114 is fixedly connected to the drive shaft 113, and the drive shaft 113 has an inner cavity for accommodating the pressure plate 114, and a pressure sensor 115 is provided between the pressure plate 114 and the side wall of the inner cavity. When clamping slip 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 drives the clamping wheel 111 to rotate. When the clamping wheel 111 contacts the optical fiber active connector, the pressure sensor 115 detects the pressure.

[0034] The clamping wheel 111 is fixedly provided with bevel gear flanges 116 at both ends, and two screws 117 are rotatably connected to the mounting frame 110, and one end of the screw 117 is fixedly connected to a bevel gear 129118 meshing with the bevel gear flange 116, and an adjustment cylinder 119 sleeved on the screw 117 is fixedly connected in the connecting block 103, and the adjustment cylinder 119 is threadedly connected to the screw 117, and the adjustment cylinder 119 and the screw 117 can be self-locking. When the self-locking motor 112 is started, the clamping wheel 111 is driven to rotate, and then the screw 117 is driven to rotate under the cooperation of the bevel gear flange 116 and the bevel gear 129118, and the mounting frame 110 is driven to move in the clamping direction under the action of the adjustment cylinder 119, and the clamping wheel 111 is driven to move in the clamping direction at the same time.

[0035] The clamping wheel 111 is coaxially connected to the first cone wheel 120 through an electromagnetic coupling 122. Two transmission cylinders 121 are rotatably connected in the connection block 103. The two transmission cylinders 121 are connected through a transmission belt. A transmission rod 123 is slidably connected along the axis of one of the transmission cylinders 121. 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 arranged on the transmission cylinder 121. A thread matching the turbine 125 is arranged on the outer side of the threaded sleeve 105.

[0036] 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 rotates 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 active connector, so that the connecting block 103 returns to the initial clamping position.

[0037] In order to solve the problem of detecting slippage, the following scheme is adopted: a sliding rod 126 is slidably arranged on the connection block 103 and one end of which is inserted into the connection block 103; a reset spring 127 is connected between the sliding rod 126 and the connection block 103; an encoder 128 is fixedly connected in the connection block 103; a gear 129 is fixedly connected to the input shaft of the encoder 128; a tooth pattern meshing with the gear 129 is arranged on the sliding rod 126; a sliding cylinder 130 is arranged 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 respectively fixedly connected to the support rod 131 and the sliding cylinder 130; one end of the support rod 131 is fixedly connected to a positioning plate 133 that abuts against the optical fiber active connector. The positioning plate 133 is provided with anti-slip patterns. When the clamping slips, the movement of the sliding rod 126 drives the gear 129 to rotate, and the distance of the slippage is detected by the encoder 128. 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 active connector under the action of the positioning spring 132 .

[0038] When clamping slip occurs, the encoder 128 transmits a signal to the controller, and the controller first controls the self-locking motor 112 to start, driving the installation frame 110 to move in the clamping direction, so that the clamping wheel 111 contacts the optical fiber connector, and the self-locking motor 112 drives the clamping wheel 111 to rotate at the same time. The controller then controls the cylinder 108 to start, so that one end of the piston rod contracts, and the clamping jaws of the tensile machine no longer clamp. When the clamping wheel 111 contacts the optical fiber connector, the pressure sensor 115 detects the pressure. When the pressure reaches the threshold, the signal is transmitted to the controller, and the controller controls the electromagnetic coupling 122 to make the clamping wheel 111 drive the first cone wheel 120 to rotate. When the clamping wheel 111 rotates, the threaded sleeve 105 also rotates, so that the position of the connecting block 103 can be adjusted with the cooperation of the threaded column 104, and then the connecting block 103 and the clamping wheel 111 move synchronously, and the clamping wheel 111 rolls back to the initial position along the surface of the optical fiber connector. When the connecting block 103 returns to the initial position, the encoder 128 transmits a signal to the controller, which first controls the cylinder 108 to start, so that one end of the piston rod extends out, and the tension machine clamps, and then controls the self-locking motor 112 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.

[0039] Since the clamping slips, it is necessary to increase the clamping force and adopt the following solution.

[0040] A first hydraulic oil chamber 134 is provided in the connection block 103, and hydraulic oil is provided in the first hydraulic oil chamber 134. Meanwhile, 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. A push rod 136 is fixedly connected to the push plate 135, 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, and the mounting plate 137 is slidably matched with the connection block 103. The cylinder 108 is fixedly arranged on the mounting plate 137. A second hydraulic oil chamber 138 is provided in the connection block 103, and a pull plate 139 is slidably connected in 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, and the second hydraulic oil chamber 138 is connected to the first hydraulic oil chamber 134. The installation frame 110 is fixedly connected with a push-pull rod 140 with one end inserted into the second hydraulic oil chamber 138, and the push-pull rod 140 is fixedly connected to the pull plate 139. An oil storage chamber 141 is provided in the connection block 103, and hydraulic oil is provided in the oil storage chamber 141. The oil storage chamber 141 is connected with the first hydraulic oil chamber 134 through a hydraulic oil pump 142, and the oil storage chamber 141 is connected with the second hydraulic oil chamber 138 through a one-way valve 143. When the installation frame 110 moves in the clamping direction, the pull plate 139 is pulled by the push-pull rod 140, and the hydraulic oil in the oil storage chamber 141 is sucked into the second hydraulic oil chamber 138. When the installation frame 110 returns to its original position, the hydraulic oil is squeezed into the first hydraulic oil chamber 134 through the one-way valve 143, which drives the push plate 135 to move, and then the cylinder 108 and the clamping jaws of the tensile machine are pushed to move in the clamping direction through the 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 is extended, the deformation of the clamping spring 109 is inconsistent, thereby increasing the clamping force of the tensile machine jaws.

[0041] 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 machine jaws on the side of the optical fiber connector, so the following solution is adopted.

[0042] The clamping wheel 111 is rotatably connected with a plurality of circumferentially distributed adjustment slots 144, and the adjustment slots 144 are rotatably connected with an adjustment wheel 145, which has an end 146 that is rotatably matched with the side wall of the adjustment slot 144. The mounting frame 110 is fixedly connected with a harness disc 147, and a pull rope 149 is wound on the harness disc 147. The pull rope 149 is also wound on the end 146, and a torsion spring 148 is connected between the end 146 and the side wall of the adjustment slot 144. When the clamping wheel 111 rotates, the pull rope 149 is wound on the harness disc 147, and then the adjustment wheel 145 rotates. At this time, the adjustment wheel 145 contacts the side of the optical fiber active connector, thereby driving the optical fiber active connector to rotate and adjusting the clamping position of the clamping jaws of the tensile machine.

[0043] A distance measuring sensor 150 is provided on the connection block 103 for detecting the distance between two connection blocks 103 arranged one above the other.

[0044] 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.

[0045] Working process or working principle: 1. Fix the two connected optical fiber connectors on the two stretching heads 101 respectively, and the clamping position of the tension machine clamp is close to the clamping part. By controlling the clamping blocks 102 to approach each other, the positioning plate 133 is abutted against the side of the optical fiber connector, and by starting the cylinder 108, the piston end of the cylinder 108 is fully extended, so that the two tension machine clamps are clamped on the optical fiber connector, and the clamping spring 109 is compressed. At this time, the tension 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 the 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 installation frame 110 and the clamping wheel 111 are driven to move in the clamping direction. When the installation 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, when the mounting frame 110 moves to the end position, the controller controls the cylinder 108 so that the tension machine jaws no longer clamp. When the clamping wheel 111 contacts the side of the optical fiber connector, the pressure sensor 115 detects that the pressure reaches the threshold value and transmits the signal to the controller. The controller controls the electromagnetic coupling 122 so that the clamping wheel 111 drives the first cone wheel 120 to rotate, and then cooperates with the second cone wheel, and drives the threaded sleeve 105 to rotate under the action of the turbine 125, so that the connecting block 103 moves, and at this time, the clamping wheel 111 rolls on the side of the optical fiber connector.

[0046] 2. When the clamping wheel 111 rotates, the adjusting wheel 145 is driven to rotate under the action of the harness plate 147 and the pull rope 149, and then the optical fiber active connector is rotated to adjust the clamping position of the side of the optical fiber active connector.

[0047] 3. After the connection block 103 moves to the initial clamping position, the sliding rod 126 returns to the initial rotation, and the encoder 128 transmits a signal to the cylinder 108, so that the piston rod end of the cylinder 108 is fully extended again, and then the controller controls the self-locking motor 112 to output power in the reverse direction, so that the clamping wheel 111 flips, and the installation frame 110 moves in the reverse direction of the clamping direction. The hydraulic oil in the second hydraulic chamber is squeezed into the first hydraulic chamber through the push-pull rod 140, and the cylinder 108 moves at this time, and then the clamping spring 109 is compressed, and the deformation of the clamping spring 109 increases, and the clamping force also increases. When the installation frame 110 moves in the reverse 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, and the controller 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.

[0048] 4. When the pulling force 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 pumped back to the oil storage chamber 141 by starting the hydraulic oil pump 142.

[0049] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A mechanical performance detection device for an optical fiber active connector, characterized in that: include: A tensile testing machine (100), the tensile testing machine (100) having two stretching 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 clamping mechanisms are arranged 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), two threaded columns (104) are fixedly connected to the clamping block (102), the threaded columns (104) pass through the connecting block (103), 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 provided in the connecting block (103) and is opened toward a clamping side; A tensile machine clamping jaw, slidably disposed on the connection block (103) and used for clamping the optical fiber active connector; A detection component, arranged on the connection block (103), used for detecting the slippage of the optical fiber active connector; A clamping wheel (111), arranged in the mounting cavity (106) and used for adjusting a clamping position; A mounting frame (110) slidably disposed in the mounting cavity (106) and used for mounting a clamping wheel (111); An adjustment component, 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) one end of which is 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); and a pressure sensor (115) is disposed between the pressure plate (114) and a side wall of the inner cavity.

2. The mechanical performance detection device of an optical fiber active connector according to claim 1, characterized in that: The detection component comprises: a sliding rod (126) slidably arranged on the connection block (103) and having one end inserted into the connection block (103); a return spring (127) is connected between the sliding rod (126) and the connection block (103); an encoder (128) is fixedly connected inside the connection 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 arranged on the sliding rod (126); a sliding cylinder (130) is arranged 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 respectively fixedly connected to the support rod (131) and the sliding cylinder (130); and one end of the support rod (131) is fixedly connected to a positioning plate (133) abutting 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 connection block (103), and hydraulic oil is provided in the first hydraulic oil chamber (134). 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 jaw of the tensile machine, and the piston rod of the cylinder (108) is used to push the clamping jaw of the tensile machine for clamping; A second hydraulic oil chamber (138) is provided in the connection block (103), a pull plate (139) is slidably connected in the second hydraulic oil chamber (138), 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), a push-pull rod (140) having one end inserted into the second hydraulic oil chamber (138) is fixedly connected to the installation 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 connection block (103), hydraulic oil is provided in the oil storage chamber (141), the oil storage chamber (141) is connected to the first hydraulic oil chamber (134) via a hydraulic oil pump (142), and the oil storage chamber (141) is connected to the second hydraulic oil chamber (138) via a one-way valve (143).

4. The mechanical performance detection device of an optical fiber active connector according to claim 3, characterized in that: The adjustment component comprises: Bevel gear flanges (116) are fixedly provided at both ends of the clamping wheel (111); 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 (129118) meshing with the bevel gear flange (116); an adjustment cylinder (119) sleeved on the screw rod (117) is fixedly connected inside the connection block (103); the adjustment cylinder (119) is threadedly connected to the screw rod (117).

5. The mechanical performance detection device of 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 inside the connection 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 of 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 grooves (144), an adjustment wheel (145) is rotatably connected inside the adjustment groove (144), the adjustment wheel has an end (146) rotatably engaged with a side wall of the adjustment groove (144), a wiring harness disk (147) is fixedly connected to the mounting frame (110), a pull rope (149) is wound around the wiring harness disk (147), the pull rope (149) is also wound around the end (146), and a torsion spring (148) is connected between the end (146) and the side wall of the adjustment groove (144).

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

8. The mechanical performance detection device of an optical fiber active connector according to claim 7, characterized in that: The tensile 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).

Images