An automatic testing device for optical modules

Abstract

This invention proposes an automated testing device for optical modules, comprising: a feeding module, including a machine base equipped with at least one set of feeding and distributing units, at least one set of receiving and palletizing units, and a transfer unit; a transfer module, used to receive trays separated by the feeding and distributing units, and to transport the optical modules in the incoming trays one by one to the testing module, and to transfer empty trays to the receiving and palletizing units; and a testing module, including a testing machine and a placement platform for placing optical cable assemblies; wherein the transfer module is configured as an AMR (Automatic Mobile Ranging) trolley, which can reciprocate between the feeding module and the testing module, and can switch positions between the feeding and distributing units and the receiving and palletizing units to receive full trays or return empty trays. Through the above method, automated feeding and insertion testing of optical modules is achieved, effectively improving testing efficiency and accuracy.

Description

Technical Field

[0001] This invention relates to the field of optical module testing technology, and in particular to an automated testing device for optical modules. Background Technology

[0002] With the rapid development of the optical communication field, the demand for optical modules has grown rapidly in recent years. Optical modules must undergo performance testing before leaving the factory to ensure product quality. Currently, the testing process for optical modules involves multiple steps, including loading and unloading trays, transferring modules from trays to test interfaces, and insertion / removal operations with optical cable assemblies. In existing technologies, most of these steps rely on manual operation or semi-automatic equipment, which has significant shortcomings. Manual operation requires manual insertion of the optical module into the test board's female port according to a specified direction, and manual sorting of qualified and unqualified workpieces, which is prone to confusion and errors. Furthermore, during manual insertion / removal, it is difficult to accurately control the insertion force and direction, easily causing damage to the test interface or optical module due to positional deviations. In scenarios involving multi-channel optical module testing, optical cable assemblies usually need to be inserted and removed one by one, which is time-consuming and seriously affects the overall testing efficiency. Summary of the Invention

[0003] To address the aforementioned issues, this invention proposes an automated testing device for optical modules that is compact in structure, highly automated, and capable of ensuring operational accuracy while improving testing efficiency.

[0004] The main contents of this invention include: a feeding module, including a machine base, wherein the machine base is equipped with at least one set of feeding and distributing units, at least one set of receiving and stacking units, and a transfer unit. The feeding and distributing units are used to separate and output full pallets one by one. The receiving and stacking units are used to receive and stack empty pallets one by one. The transfer unit is used to transfer pallets between the feeding and distributing units, the receiving and stacking units, and the transfer module. The transfer module is used to receive the trays separated by the feeding and distributing unit, and to transport the optical modules in the trays one by one to the testing module, as well as to return the empty trays after they have been emptied. The testing module includes a testing machine and a mounting platform for mounting optical cable assemblies; The transfer module is configured as an AMR trolley, which can move back and forth between the feeding module and the testing module, and can switch positions between the feeding and distributing unit and the receiving and stacking unit to receive full pallets or return empty pallets.

[0005] Preferably, the feeding and dispensing unit includes: Two opposing guide rails extend horizontally along a second direction. The path of the guide rails is configured with a stacking area and a separation area. The width between the two guide rails is adapted to the width of the material tray. Palletizing positioning components are located at the four corners of the palletizing area to position the palletized material trays. The lifting assembly, located on the outside of the guide rail, includes a horizontally movable positioning component and a first lifting drive component that drives the positioning component to rise and fall vertically. The material pulling assembly, disposed between the two guide rails, includes a vertically lifting clamping component, a second lifting drive component that drives the clamping component to rise and fall, and a second lateral drive component that drives the clamping component to move horizontally along a second direction.

[0006] Preferably, the clamping component includes a front clamping plate and a rear clamping plate arranged opposite each other along a second direction, and a clamping cylinder for driving the front clamping plate and the rear clamping plate to move closer and further apart from each other.

[0007] Preferably, the transfer unit is used to transfer the full material tray after separation from the separation area of ​​the feeding and distributing unit to the transfer module, and to transfer the empty material tray on the transfer module to the separation area of ​​the receiving and stacking unit; The transfer unit includes a transfer actuator and a three-axis motion drive module that drives the transfer actuator to move in multiple directions.

[0008] Preferably, the transfer actuator includes a horizontally arranged transfer substrate, a first rotation drive that drives the transfer substrate to rotate about a vertical axis, and a plurality of vacuum adsorption elements disposed on the transfer substrate; It also includes a first vision camera, used to identify the receiving position of the transfer module and transmit the position information to the control module.

[0009] Preferably, the upper surface of the AMR vehicle is provided with: The material tray placement area includes a placement plate, on which a plurality of protruding positioning posts are provided, the positioning posts being adapted to the positioning holes on the material tray; The material handling robot is equipped with a material handling gripper on its moving end, which is used to pick up optical modules from a full material tray; The transit and temporary storage platform is used to temporarily store the retrieved optical modules and perform secondary positioning on them.

[0010] Preferably, the transit storage platform includes a positioning fixture, and the upper surface of the positioning fixture is provided with: The relatively positioned side positioning blocks are used to define the horizontal placement range of the optical module; A shaft end positioning block is provided on one side of the shaft end, and a movable shaft end pushing block and a drive cylinder are provided on the other side of the shaft end. The side positioning block, shaft end positioning block, and shaft end pushing block together form the placement area of ​​the optical module, which is used for secondary positioning and correction of the optical module.

[0011] Preferably, the material-grabbing gripper has a contoured gripping arm, comprising: The first clamping part is located at the bottom of the clamping arm and is configured as a sheet-like clamping plate, which is used to extend into the gap between the two sides of the optical module in the material tray to remove the optical module. The second clamping part is located on the inner side of the clamping arm and is configured as a groove structure to conform to the side of the optical module for clamping and limiting the optical module. The third clamping part is located on the upper inner side of the clamping arm and is configured as a protruding positioning post for inserting into the clamping hole on the clamp of the optical cable assembly.

[0012] Preferably, the auxiliary clamp includes: The clamp body is provided with multiple slot units for accommodating optical cables; The positioning clip has a mounting part adapted to the clamp body and a pressing part for pressing against the end step of the optical cable; The mounting part of the positioning card is connected to the clamp body through a locking member; when the positioning card is in a fixed state, its pressing part acts simultaneously on the end step face of multiple optical cables to achieve synchronous pressing of multiple optical cables.

[0013] Preferably, the slot unit is configured as four groups, including a first slot group located on the first side of the central axis of the fixture body and a second slot group located on the second side of the central axis. Each slot group on each side includes an upper slot unit and a lower slot unit stacked on top of each other.

[0014] The beneficial effects of this invention are as follows: By integrating the full-pan loading and distributing unit and the empty-pan receiving and stacking unit into the same machine, and coordinating with the transfer unit and the intermediate module, a closed-loop flow path for the material pans is formed, effectively reducing the equipment footprint and improving space utilization. The picking gripper, through the configuration of a contoured gripping arm, integrates a first gripping part for picking up material from the pan, a second gripping part for gripping the optical module from the side and inserting it into the testing machine, and a third gripping part for gripping the optical cable assembly auxiliary fixture into one unit. This allows a single robotic arm to complete the picking up of optical modules, insertion of optical modules, and insertion of optical cable assemblies, eliminating the need for multiple robotic arms, effectively reducing equipment costs and saving installation space. Multiple optical cables are integrated into an optical cable assembly through the gripper body and positioning clips of the auxiliary fixture. The pressing part of the positioning clips simultaneously presses the end steps of multiple optical cables, enabling one-time insertion and removal of multiple optical cables, effectively improving testing efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a preferred embodiment; Figure 2 This is a three-dimensional structural diagram of the feeding module in a preferred embodiment; Figure 3 This is a three-dimensional structural diagram of the feeding and dispensing unit in a preferred embodiment; Figure 4 This is a three-dimensional structural diagram of the material pulling assembly in a preferred embodiment; Figure 5 This is a three-dimensional structural diagram of the transfer module in a preferred embodiment; Figure 6 for Figure 1 A magnified schematic diagram of the local structure at point A; Figure 7 A three-dimensional structural diagram of the temporary storage platform in a preferred embodiment; Figure 8 This is a three-dimensional structural schematic diagram of an optical cable assembly according to a preferred embodiment; Figure label: 100. Feeding module; 110. Machine base; 120. Feeding and distributing unit; 121. Guide rail; 122. Palletizing positioning component; 123. Lifting assembly; 1231. Positioning component; 1232. First lateral movement drive component; 1233. First lifting drive component; 124. Pulling assembly; 1241. Material clamping component; 1242. Second lifting drive component; 1243. Second lateral movement drive component; 130. Receiving and palletizing unit; 140. Transfer unit; 141. Transfer actuator; 1411. Transfer base plate; 1412. First rotation drive component; 1413. Vacuum adsorption component; 1414. First vision camera; 142. Three-axis movement drive module; 200. Transfer module; 210. AMR trolley; 220. Material tray placement area; 221. Placement plate; 230. Material handling robot; 231. Material handling gripper; 232. First gripping part; 233. Second gripping part; 234. Third gripping part; 240. Transfer and temporary storage platform; 241. Positioning fixture; 242. Side positioning block; 243. Shaft end positioning block; 244. Shaft end pushing block; 245. Drive cylinder; 250. Wiping device; 260. Testing device; 300. Test module; 310. Test machine; 320. Installation platform; 400. Auxiliary fixture; 410. Fixture body; 411. Clamping hole; 420. Positioning clip; 510, Material tray; 520, Optical module; 530, Optical cable. Detailed Implementation

[0016] The following is in conjunction with the appendix Figure 1-8 The technical solution protected by this invention will be described in detail below.

[0017] This invention provides an automatic testing device for optical modules, such as... Figure 1As shown, this device is used to automate the loading and insertion / removal testing of the optical module 520. The device mainly includes a loading module 100, a transfer module 200, and a testing module 300.

[0018] The feeding module 100 includes a machine base 110, on which at least one set of feeding and distributing units 120 and at least one set of receiving and palletizing units 130 are configured. The feeding and distributing units 120 are used for palletizing and feeding the optical module trays 510 and separating and outputting the palletized trays 510 one by one; the receiving and palletizing units 130 are used for receiving and palletizing the empty trays one by one after they have been emptied. Through the above structure, the feeding and recycling of trays are integrated on the same machine base 110, realizing the closed-loop circulation of trays, effectively reducing the footprint of the equipment and improving space utilization.

[0019] like Figure 1-4 As shown, in this embodiment, the feeding and distributing unit 120 includes two oppositely arranged guide rails 121, a stacking positioning component 122, a lifting component 123, and a pulling component 124.

[0020] Two guide rails 121 extend horizontally along a second direction, and a palletizing area and a separation area are configured along the path of the guide rails 121. The width between the two guide rails 121 is adapted to the width of the tray 510 to limit the movement path of the tray 510 and ensure that the tray 510 does not deviate when sliding along the guide rails 121.

[0021] Palletizing positioning elements 122 are located at the four corners of the palletizing area to define the four corner structures of the pallet 510. In this embodiment, the palletizing positioning elements 122 are configured as vertically extending L-shaped positioning supports, with the four positioning supports corresponding to the four corners of the pallet 510, respectively, to position the pallet 510 as a whole and prevent it from tilting or shifting during the palletizing process. It should be noted that the palletizing positioning elements 122 only define and position the second-to-last pallet and the pallets above it to avoid interfering with the transfer of the bottom pallet.

[0022] The lifting assembly 123 is located outside the guide rail 121 and includes a horizontally movable positioning member 1231 and a first lifting drive member 1233 that drives the positioning member 1231 to move vertically. Specifically, the positioning member 1231 is driven by a first lateral drive member 1232 (such as a telescopic cylinder) and can move horizontally towards or away from the palletizing area. The side of the positioning member 1231 closest to the palletizing area has a slot that fits the edge of the pallet. When it is necessary to separate the pallets, the positioning members 1231 on both sides move towards the palletizing area, and their slots are inserted into the second-to-last pallet. Then, the first lifting drive member 1233 drives the positioning member 1231 to move vertically, simultaneously lifting the second-to-last pallet and all the pallets above it, thereby separating the bottom pallet from the pallets above.

[0023] The material pulling assembly 124 is disposed between two guide rails 121 and includes a vertically lifting clamping component 1241, a second lifting drive component 1242 that drives the clamping component 1241 to move up and down, and a second lateral drive component 1243 that drives the clamping component 1241 and the second lifting drive component 1242 to move horizontally in a second direction synchronously. Specifically, the clamping component 1241 includes a front clamping plate and a rear clamping plate arranged opposite to each other in the second direction, and a clamping cylinder that drives the front clamping plate and the rear clamping plate to move closer and further apart. When the lifting assembly 123 lifts the second-to-last tray and the tray above it, separating them from the bottom tray, the second lifting drive component 1242 (such as a lifting cylinder) drives the clamping component 1241 to rise. At this time, the front and rear clamping plates of the clamping component 1241 are in an open state. After the clamping component 1241 rises to a certain height (the cylinder controls the fixed height), it supports the bottommost tray. The clamping cylinder drives the front and rear clamping plates to move closer together, clamping the tray. The second lateral drive component 1243 drives the clamping component 1241 to move horizontally in the second direction, pulling the bottommost tray from the stacking area to the separation area. For the feeding and distributing unit 120, the stacking area is used to stack full trays, and the lifting component 123 is used to lift the second-to-last and above full trays to separate the bottommost full tray. The pulling component 124 is used to pull the bottommost full tray from the stacking area to the separation area for subsequent transfer.

[0024] The receiving and palletizing unit has a structure largely the same as the feeding and distributing unit, including a guide rail 121, a palletizing positioning component 122, and a pulling assembly 124. A checkpoint block is configured on the outer side of the guide rail. The checkpoint block of the receiving and palletizing mechanism is a conventional elastic reset block structure used in the field to prevent the already palletized empty pallets from falling after they have been lifted past the block. This is an existing product in the industry, and its specific structure will not be described in detail here. The separation zone receives empty pallets returned from the transfer module 200. The pulling assembly 124 pulls the empty pallets from the separation zone to the palletizing zone and lifts them upwards to a certain height, causing them to rise past the checkpoint block and lift the already palletized empty pallets above. The empty pallets then fall back and are supported above the checkpoint block, thus achieving the individual receiving and palletizing of empty pallets.

[0025] The feeding module 100 also includes a transfer unit 140, such as Figure 1 As shown, it is installed on the machine base 110. The transfer unit 140 is used to transfer the full material tray after separation from the separation area of ​​the feeding and distributing unit 120 to the transfer module 200, and to transfer the empty material tray on the transfer module 200 to the separation area of ​​the receiving and stacking unit 130.

[0026] The transfer unit 140 includes a transfer actuator 141 and a three-axis motion drive module 142 that drives the transfer actuator 141 to move in multiple directions. The three-axis motion drive module 142 can drive the transfer actuator 141 to move along the X-axis, Y-axis and Z-axis to meet the loading and unloading requirements of the material tray.

[0027] The transfer actuator 141 includes a horizontally arranged transfer substrate 1411, a first rotary drive 1412 (such as a rotary cylinder) that drives the transfer substrate 1411 to rotate around the Z-axis, and a plurality of vacuum suction components 1413 (such as vacuum suction cups) disposed on the transfer substrate 1411. The vacuum suction components 1413 are used to suction the material tray 510, realizing stable gripping of the material tray. The three-axis motion drive module 142 drives the transfer actuator 141 to move above the separation zone, and the vacuum suction components 1413 pick up the separated material tray and then transfer and place it on the transfer module 200.

[0028] The transfer actuator 141 is also equipped with a first vision camera 1414, which is used to identify the receiving position of the transfer module 200 and transmit the position information to the control module. The first rotation drive 1412 adjusts the angle of the transfer substrate 1411 according to the identified position information, thereby correcting the placement angle of the tray 510. Through the combination of visual guidance and angle correction, it is ensured that the tray 510 is accurately placed in the predetermined position of the transfer module 200, avoiding subsequent material retrieval failures due to placement deviations.

[0029] like Figure 5-6 As shown, the transfer module 200 is configured as an AMR vehicle 210, namely an Autonomous Mobile Robot (AMR) vehicle. The AMR vehicle 210 can move back and forth between the machine 110 and the test module 300, and can switch positions between the loading and distributing unit 120 and the receiving and palletizing unit 130 to receive full pallets or return empty pallets.

[0030] The upper surface of the AMR cart 210 is provided with a tray placement area 220, a material handling robot 230, and a transfer and temporary storage platform 240. The tray placement area 220 includes a placement plate with several raised positioning posts for matching the positioning holes on the tray 510. When the AMR cart 210 moves into the visual recognition range of the first vision camera 1414, the first vision camera accurately identifies and determines the position of the positioning posts to achieve accurate material placement on the tray. Furthermore, the relative cooperation between the positioning posts and the positioning holes on the tray ensures the stability of the tray's position during material handling by the material handling robot 230 and during the movement of the AMR cart 210. In a preferred embodiment, the material handling robot 230 can be a seven-axis force-controlled robot, which can effectively maintain material handling accuracy and material transfer stability.

[0031] The moving end of the material handling robot 230 is equipped with a material handling gripper 231 for gripping the optical module 520 in a full material tray. The material handling gripper 231 has a contour gripping arm, including a first gripping part 232, a second gripping part 233 and a third gripping part 234.

[0032] Specifically, the first clamping part 232 is located at the bottom of the clamping arm and is configured as a sheet-like clamping plate. It can be inserted into the gaps on both sides of the optical module 520 in the tray 510 to remove the optical module 520 from the tray 510. The second clamping part 233 is located on the inner side of the clamping arm and is configured as a groove structure, which is shaped to match the side of the optical module 520. It can clamp and limit the optical module 520 in the groove. After the optical module is placed on the transfer storage platform 240 for secondary positioning, the second clamping part 233 clamps the optical module 520. The groove structure is adapted to the side shape of the optical module 520, which can achieve stable clamping of the optical module 520 so as to drive the optical module into the testing machine. The third clamping part 234 is located on the upper inner side of the clamping arm and is configured as a protruding positioning post. The positioning post can be inserted into the clamping through hole 411 on the auxiliary clamp 400 of the optical cable assembly (e.g., Figure 8 As shown in the figure, it is used to clamp and operate the optical cable assembly.

[0033] By integrating three different gripping parts on the same gripping arm, a single robotic arm can perform the three processes of optical module picking, optical module insertion, and optical cable assembly insertion without the need for separate robotic arms, effectively reducing equipment costs and saving equipment space.

[0034] The transfer and temporary storage platform 240 is used to temporarily store the retrieved optical module 520 and perform secondary positioning on it to ensure that the position of the optical module is accurate when the picking robot 230 clamps the optical module for test insertion.

[0035] like Figure 7 As shown, the transit storage platform 240 includes a positioning fixture 241. The upper surface of the positioning fixture 241 is provided with opposing side positioning blocks 242, a shaft end positioning block 243 located on one side of the shaft end, and a movable shaft end pushing block 244 and a drive cylinder 245 located on the other side of the shaft end. Specifically, the distance between the two side positioning blocks 242 is adapted to the width of the optical module 520, used to define the horizontal placement area of ​​the optical module 520. The shaft end positioning block 243 is defined at one axial end of the positioning fixture 241, and the shaft end pushing block 244 can move closer to the shaft end positioning block 243 under the drive of the drive cylinder 245. The side positioning blocks 242, shaft end positioning blocks 243, and shaft end pushing blocks 244 together enclose the placement area of ​​the optical module 520.

[0036] When the picking gripper 231 removes the optical module 520 from the material tray 510 and transfers the optical module 520 to the transfer storage platform 240, the shaft end push block 244 is in a state away from the shaft end positioning block 243. The positioning blocks 242 on both sides effectively limit the initial placement position of the optical module, making the lateral placement position of the optical module accurate, while the axial placement position has an error. Then, the drive cylinder 245 drives the shaft end push block 244 to move closer to the shaft end positioning block 243. The shaft end push block 244 pushes the optical module until the optical module is pushed to the predetermined position in the axial direction (limited between the shaft end positioning block 243 and the shaft end push block 244), thus completing the secondary positioning correction of the two. After the aforementioned secondary positioning, the positional accuracy of the optical module 520 is guaranteed. When the picking gripper 231 (second gripping part 233) re-grips the optical module 520 and transfers it into the testing machine 310, it ensures accurate alignment of the interface between the optical module 520 and the testing machine 310, preventing interface damage caused by positional deviation. In a preferred embodiment, a second vision camera is provided on one side of the picking robot 230 to identify the interface position of the testing machine and feed it back to the control module, further improving the insertion accuracy of the optical module 520.

[0037] The test module 300 includes a tester 310 and a mounting platform 320 for mounting optical cable assemblies. The tester is an externally purchased optical module testing device. An extended mounting platform 320 is provided on the outside of the tester 310. The mounting platform 320 is used to mount the optical cable assemblies, which are pre-loaded by an external robotic arm or manually. The optical cable assemblies include multiple optical cables and auxiliary clamps 400 for fixing the optical cables. By clamping multiple optical cables with the auxiliary clamps 400, and then cooperating with the material handling robotic arm 230 to hold the auxiliary clamps 400, multiple optical cables can be inserted and removed at once, effectively improving testing efficiency.

[0038] The auxiliary clamp 400 includes a clamp body 410 and a positioning clip 420. The clamp body 410 is provided with multiple slot units for accommodating optical cables 530. In this embodiment, the slot units are configured in four groups, allowing four optical cables 530 to be clamped simultaneously. The four slot units are symmetrically distributed along the central axis of the clamp body 410, including a first slot group located on the first side of the central axis (e.g., the left side) and a second slot group located on the second side of the central axis (e.g., the right side), and each slot group on each side includes an upper slot unit and a lower slot unit stacked vertically.

[0039] The positioning clip 420 has a mounting portion adapted to the clamp body 410, and a pressing portion for pressing against the end steps of the optical cables 530. The mounting portion of the positioning clip 420 is connected to the clamp body 410 by a locking element (such as a locking screw). When the positioning clip 420 is installed in place and in a fixed state, its pressing portion can simultaneously act on the end step faces of the four optical cables 530, thereby achieving synchronous pressing of multiple optical cables 530. Through the above structure, the slot unit is used to define the radial position of the optical cables, and the pressing portion of the positioning clip 420 and the clamp body 410 work together to define the axial position of the optical cables, thereby achieving the fixation of multiple optical cables, effectively improving the insertion and removal efficiency of the optical cables, and ensuring that each optical cable 530 is subjected to uniform force during insertion and removal.

[0040] In a preferred embodiment, such as Figure 5 As shown, the AMR cart 210 is equipped with a wiping device 250 and a testing device 260. Before the robotic arm 230 clamps the optical cable assembly 400 for insertion, it is first moved to the wiping device 250 to wipe the mating end of the optical cable 530; then it is moved to the front of the testing device 260 to test the cleanliness of the wiping end to ensure that it meets the requirements and avoids affecting the testing accuracy with the optical module due to insufficient cleanliness. It should be noted that both the wiping device 250 and the testing device 260 are purchased directly from external sources, and their specific structure and working principle will not be explained in detail here.

[0041] Working principle: First, the operator places the stacked full pallets in the stacking area of ​​the feeding and distributing unit 120. The lifting component 123 of the feeding and distributing unit 120 lifts the second-to-last layer and above of pallets, and the pulling component 124 pulls the bottom full pallet from the stacking area to the separation area.

[0042] Subsequently, the three-axis motion drive module 142 of the transfer unit 140 drives the transfer actuator 141 to move above the separation zone, and the vacuum adsorption component 1413 picks up the separated full tray. The first vision camera 1414 identifies the position of the tray placement area 220 on the AMR cart 210, and the first rotation drive component 1412 adjusts the angle of the transfer substrate 1411 according to the identification result, so as to accurately place the full tray on the tray placement area 220 of the AMR cart 210.

[0043] The AMR trolley 210, carrying a full material tray, moves to the front of the testing module. The picking gripper 231 of the robotic arm 230 extends through the first gripping part 232 into the gaps on both sides of the optical module 520 in the material tray 510, removes the optical module 520, and transfers it to the intermediate storage platform 240. The intermediate storage platform 240 performs secondary positioning correction on the optical module 520 using the side positioning block 242, the shaft end positioning block 243, and the shaft end pushing block 244. After correction, the picking gripper 231 re-grips the optical module 520 through the second gripping part 233 and transfers it into the testing machine 310.

[0044] After the optical module 520 is inserted into the testing machine 310, the picking gripper 231 clamps the auxiliary clamp 400 through the third clamping part 234, first moving the optical cable assembly to the front of the wiping device 250 to wipe the end of the optical cable, and then moving it to the front of the testing device 260 to test the wiping results. If it meets the cleaning standards, the optical cable assembly is inserted into the optical module 520 and waits for testing; if the test does not meet the standards, wiping is performed again until it meets the standards before the insertion action is performed.

[0045] The AMR trolley 210 carries the empty material tray to the vicinity of the receiving and palletizing unit 130. The vacuum suction component 1413 of the transfer unit 140 picks up the empty material tray and transfers it to the separation area of ​​the receiving and palletizing unit 130. The material pulling component 124 of the receiving and palletizing unit 130 pulls the empty material tray from the separation area to the palletizing area and lifts the empty material tray upwards above the check stop, thus completing the palletizing and recycling of all empty material trays in sequence.

[0046] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An automatic testing device for optical modules, characterized in that, Mainly includes: The feeding module (100) includes a machine (110), on which at least one set of feeding and distributing units (120), at least one set of receiving and stacking units (130), and a transfer unit (140) are configured. The feeding and distributing units (120) are used to separate and output the full pallets one by one. The receiving and stacking units (130) are used to receive and stack empty pallets one by one. The transfer unit (140) is used to transfer the pallets between the feeding and distributing units (120), the receiving and stacking units (130), and the transfer module (200). The transfer module (200) is used to receive the trays separated by the feeding and distributing unit (120), and to transport the optical modules in the trays one by one to the testing module (300), and to return the empty trays after they have been emptied. The test module (300) includes a tester (310) and a mounting platform (320) for mounting optical cable assemblies. The transfer module (200) is configured as an AMR trolley (210), which can move back and forth between the loading module (100) and the testing module (300), and can switch positions between the loading and distributing unit (120) and the receiving and stacking unit (130) to receive full trays or return empty trays.

2. The automatic testing equipment for optical modules according to claim 1, characterized in that, The feeding and distributing unit (120) includes: Two oppositely arranged guide rails (121) extend horizontally along a second direction. The path of the guide rails (121) is provided with a stacking area and a separation area. The width between the two guide rails (121) is adapted to the width of the material tray. The palletizing positioning component (122) is located at the four corners of the palletizing area and is used to position the palletized material trays. The lifting assembly (123) is located on the outside of the guide rail (121) and includes a horizontally movable positioning member (1231) and a first lifting drive member (1233) that drives the positioning member (1231) to rise and fall vertically. The material pulling assembly (124) is disposed between the two guide rails (121) and includes a vertically lifting clamping component (1241), a second lifting drive component (1242) that drives the clamping component (1241) to lift, and a second lateral drive component (1243) that drives the clamping component (1241) to move horizontally in a second direction.

3. The automatic testing equipment for optical modules according to claim 2, characterized in that, The clamping component (1241) includes a front clamping plate and a rear clamping plate arranged opposite each other along a second direction, and a clamping cylinder for driving the front clamping plate and the rear clamping plate to move closer and further away from each other.

4. The automatic testing equipment for optical modules according to claim 1, characterized in that, The transfer unit (140) is used to transfer the full material tray after separation from the separation area of ​​the feeding and distributing unit (120) to the transfer module (200), and to transfer the empty material tray on the transfer module (200) to the separation area of ​​the receiving and stacking unit (130); The transfer unit (140) includes a transfer actuator (141) and a three-axis motion drive module that drives the transfer actuator (141) to move in multiple directions.

5. The automatic testing equipment for optical modules according to claim 4, characterized in that, The transfer actuator (141) includes a horizontally arranged transfer substrate (1411), a first rotation drive (1412) that drives the transfer substrate (1411) to rotate around a vertical axis, and a plurality of vacuum adsorption elements (1413) disposed on the transfer substrate (1411). It also includes a first vision camera (1414) for identifying the receiving position of the transfer module (200) and transmitting the position information to the control module.

6. The automatic testing equipment for optical modules according to claim 1, characterized in that, The upper surface of the AMR trolley (210) is provided with: The material tray placement area (220) includes a placement plate (221), on which a plurality of protruding positioning posts are provided, the positioning posts being adapted to the positioning holes on the material tray; The material handling robot (230) has a material handling gripper (231) on its moving end, which is used to grip the optical module in the full material tray; The transit storage platform (240) is used to temporarily store the retrieved optical modules and perform secondary positioning on them.

7. The automatic testing equipment for optical modules according to claim 6, characterized in that, The transit storage platform (240) includes a positioning fixture (241), the upper surface of which is provided with: The side positioning block (242) is set relative to each other to define the horizontal placement range of the optical module; A shaft end positioning block (243) is provided on one side of the shaft end, and a movable shaft end pushing block (244) and a drive cylinder (245) are provided on the other side of the shaft end. The side positioning block (242), the shaft end positioning block (244) and the shaft end pushing block (244) together form the placement area of ​​the optical module, which is used to perform secondary positioning and correction of the optical module.

8. The automatic testing equipment for optical modules according to claim 6, characterized in that, The material handling gripper (231) has a contoured gripping arm, including: The first clamping part (232) is located at the bottom of the clamping arm and is configured as a sheet-like clamping plate for extending into the gap between the two sides of the optical module in the tray to remove the optical module; The second clamping part (233) is located on the inner side of the clamping arm and is configured as a groove structure to conform to the side of the optical module for clamping and limiting the optical module. The third clamping part (234) is located on the upper inner side of the clamping arm and is configured as a protruding positioning post for passing through the clamping hole (411) on the auxiliary clamp (400) of the optical cable assembly.

9. The automatic testing equipment for optical modules according to claim 8, characterized in that, The auxiliary clamp (400) includes: The clamp body (410) is provided with multiple slot units for accommodating optical cables; The positioning clip (420) has a mounting part adapted to the clamp body (410) and a pressing part for pressing against the end step of the optical cable; The mounting part of the positioning clip (420) is connected to the clamp body (410) by a locking member; when the positioning clip (420) is in a fixed state, its pressing part acts on the end step end face of multiple optical cables at the same time to achieve synchronous pressing of multiple optical cables.

10. The automatic testing equipment for optical modules according to claim 9, characterized in that, The slot unit is configured in four groups, including a first slot group located on the first side of the central axis of the fixture body (410) and a second slot group located on the second side of the central axis. Each slot group on each side includes an upper slot unit and a lower slot unit stacked on top of each other.

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