Optical module pull ring detection equipment and detection method thereof

Abstract

The invention discloses optical module pull ring detection equipment and a detection method thereof. The optical module pull ring detection equipment comprises a rack, and a flow belt, a carrying three-axis and a detection device which are arranged on the rack, the detection device comprises a transfer test platform, a product pressing module, a plug gauge detection positioning module, a plug gauge detection module, a pull ring detection module, a left height test module and a right height test module. The third carrying shaft is connected to the assembly line belt and the transfer test platform. During detection, firstly, a product is positioned on the transfer test platform, then the appearance size of the product is detected, then the pulling force of the pull ring is detected and whether the pull ring can be reset is detected, and then the bayonet size when the pull ring of the product is pulled out is detected; therefore, multi-dimensional automatic detection of the optical module pull ring is realized on the same detection equipment through one-time positioning, the working efficiency is effectively improved, the control on the product quality is more accurate and reliable, and the requirements of higher-quality products are favorably met.

Description

TECHNICAL FIELD

[0001] The present application relates to optical module automatic detection technology, in particular to an optical module pull ring detection device and a detection method thereof. BACKGROUND

[0002] With the development of communication technology, the application demand of optical communication module (also known as optical module) is getting larger and larger, and the development of 400G / 800G optical module puts forward higher requirements on the quality and precision of optical module. Generally, a pull ring is provided on the optical module, which is used to unlock the ejection pin. When it is needed to pull out the optical module, the pull ring is pulled outwards to extrude the ejection pin out of the clamping hole on both sides of the optical module, and then the optical module can be freely pulled out.

[0003] When producing the optical module, the optical module needs to be detected, for example: product external size (especially the head section of the optical module is used for plug-in adaptation, whether the size is qualified directly relates to whether the optical module can be normally plugged and used), whether the pull ring can be unlocked, etc. At present, the product external size of the optical module is generally detected by taking pictures, while the pull ring detection is generally checked by manual inspection. If the pull ring can be pulled back and reset forward after being released, it means that the pull ring is qualified. The product external size and pull ring detection are carried out in two links, in different workstations, and the overall detection efficiency is low and the manual participation is more.

[0004] In addition, CN114577455A provides a use method of an optical module unlocking function detection device. The unlocking function of the pull ring is detected by an automatic device. Specifically, the method comprises: selecting one or more optical modules in a batch of optical modules, testing or analyzing the size of the pressure required to be applied to the unlocking ejection pin in the batch of optical modules by a person skilled in the art, and setting the size of the pressure applied to the unlocking ejection pin by the pressure component 2. The optical module is inserted into the limiting shell for fixation, and then the pressure component is used to press the unlocking ejection pin 3 to make the unlocking ejection pin tightly clamped with the optical module clamping hole. The pull ring linkage device of the optical module is used to extrude the unlocking ejection pin 3 to try to pull out the optical module body from the installation cage. If the optical module body can be pulled out, it means that the unlocking function of the optical module is normal. Otherwise, it means that the unlocking function of the optical module is not normal.

[0005] The device and method for detecting the unlocking function of the optical module extrude the unlocking ejection pin when the pull ring linkage device is pulled, which means that the pull ring is qualified. However, for the pull ring device, whether it can be reset smoothly after being pulled out is also a key factor. A small number of optical modules can be pulled out under the action of external force, but due to the assembly precision problem, they are difficult to reset normally. The products in this case will have quality problems when used.

[0006] Moreover, in the prior art, the detection of the size of the optical module and the detection of the pull ring function are performed by multiple detection devices or stations, each of which involves product transfer and positioning of the optical module, resulting in a complex detection process, long time consumption, and false detection after inspection, which makes it difficult to control product quality and meet higher quality product requirements. Therefore, there is a need to study a new technical solution to solve the above problems. SUMMARY

[0007] Therefore, the present application aims to solve the problems in the prior art, and the main purpose is to provide an optical module pull ring detection device and a detection method thereof, which can realize multi-dimensional automatic detection of the optical module pull ring on the same detection device, effectively improve the work efficiency, and control the product quality more accurately and reliably, which is beneficial to meet the higher quality product requirements.

[0008] To achieve the above purpose, the present application adopts the following technical solutions: An optical module pull ring detection device, comprising a rack, a flow belt arranged on the rack, a carrying three-axis, and a detection device; The detection device comprises a transfer test platform, a product pressing module, a plug gauge detection positioning module, a plug gauge detection module, a pull ring detection module, a left height test module, and a right height test module. The carrying three-axis is connected to the flow belt and the transfer test platform; The product pressing module is used to press the product on the transfer test platform; The plug gauge detection positioning module is used to position the product on the transfer test platform; The plug gauge detection module is used to detect the shape of the product on the transfer test platform; The pull ring detection module is used to test the pull force and the reset ability of the pull ring of the product on the transfer test platform; The left height test module and the right height test module are used to detect the size of the pull ring on both sides of the product on the transfer test platform.

[0009] As a preferred solution, the plug gauge detection module and the pull ring detection module are located on the opposite sides of the front and back of the transfer test platform, and the left height test module and the right height test module are located on the opposite sides of the left and right of the transfer test platform.

[0010] As a preferred solution, the product pressing module comprises up-down pressing mechanism and left-right pressing mechanism; after the product is placed on the transfer test platform, the bottom of the product is limited by the transfer test platform, the left or right side of the product is limited by the pre-set stopper on the transfer test platform, the left-right pressing mechanism presses towards the corresponding right or left side of the product, and the up-down pressing mechanism presses downwards on the top of the product.

[0011] As a preferred solution, the up-down pressing mechanism comprises a translation cylinder, a downward pressing cylinder and a downward pressing block; the downward pressing block is connected to the downward pressing cylinder and the downward pressing action of the downward pressing block is controlled by the downward pressing cylinder; the translation cylinder is connected to the downward pressing cylinder to extend or move away from the transfer test platform by translating the downward pressing cylinder and the downward pressing block left and right. and / or: The left-right pressing mechanism comprises a side pressing cylinder and a side pressing block; the side pressing cylinder drives the side pressing block to translate left and right to press towards one side of the product.

[0012] As a preferred solution, the front side of the transfer test platform is provided with a product lifting cylinder and a support table; the product lifting cylinder drives the support table to move up and down; when the product is placed in the transfer position, the product lifting cylinder drives the support table to move up to support the head end of the optical module, then the up-down pressing mechanism and the left-right pressing mechanism complete the clamping positioning of the optical module, and then the product lifting cylinder drives the support table to move down to reset.

[0013] As a preferred solution, the plug gauge detection and positioning module comprises a lifting positioning mechanism; the plug gauge detection module comprises a plug gauge, a plug gauge floating mechanism, a first pressure sensor and a first test transfer mechanism; the plug gauge is connected to the plug gauge floating mechanism; the first pressure sensor is connected and arranged on the plug gauge floating mechanism in the front-rear direction, so that the plug gauge continuously reads the pressure value by the first pressure sensor during the front-rear action test; the first test transfer mechanism is connected with a first transfer seat and drives the first transfer seat to translate front and back; the plug gauge detection and positioning module, the plug gauge, the plug gauge floating mechanism and the first pressure sensor are all arranged on the transfer seat.

[0014] As a preferred solution, the pull ring detection module comprises a pull ring test hook, a lifting platform, a second test transfer mechanism and a second pressure sensor; the second test transfer mechanism is connected with a second transfer seat and drives the second transfer seat to translate front and back; the lifting platform is arranged on the second transfer seat; the pull ring test hook is arranged on the lifting platform and the lifting of the pull ring test hook is controlled by the lifting platform; the first pressure sensor is connected and arranged on the pull ring test hook in the front-rear direction.

[0015] As a preferred solution, the left height testing module and the right height testing module each include a height testing moving mechanism and a contact sensor, and the height testing moving mechanism drives the contact sensor to move left and right.

[0016] As a preferred solution, the detection device further includes a product information scanning module, and after the product testing is completed, the carrying three-axis clamps the product to move to a scanning station to be scanned and matched by the product information scanning module. A light module pull ring detection method is detected by the light module pull ring detection equipment of any one of the preceding items, and the detection method includes the following steps: Step 1, positioning the product on the transfer testing platform: the carrying three-axis places the product on the transfer testing platform, and the transfer testing platform is used for pre-positioning, and then the product is pressed by the product pressing module to correct the positioning; Step 2, detecting the product size: the plug gauge detection positioning module is extended to position the product, and then the plug gauge detection module is used to detect the product size; if it is unqualified, the product is taken out from the transfer testing platform by the carrying three-axis as a N product, and if it is qualified, step 3 is continued; Step 3, detecting the pull ring tension and whether it can reset: the pull ring detection module repeatedly pulls the pull ring and resets to detect the pull ring tension and judge whether it can reset; if it is unqualified, the product is taken out from the transfer testing platform by the carrying three-axis as a N product, and if it is qualified, step 4 is continued; Step 4, detecting the product pull ring pull-out socket size: the left height testing module and the right height testing module are extended to detect whether the product pull ring socket size is qualified; if it is unqualified, the product is taken out from the transfer testing platform by the carrying three-axis as a N product, and if it is qualified, the product is taken out from the transfer testing platform by the carrying three-axis as an OK product and flows out along the water belt.

[0017] Compared with the prior art, the present application has obvious advantages and beneficial effects. Specifically, from the above technical solution, it is mainly through the help of the carrying three-axis to take and send the product from the assembly line to the detection device for multiple detection, and then move it to the assembly line. In particular, the detection device includes a transfer test platform, a product pressing module, a plug gauge detection positioning module, a plug gauge detection module, a pull ring detection module, a left height test module, and a right height test module. The transfer test platform is used for placing and positioning the product. The product pressing module is used for pressing the product placed on the transfer test platform. The plug gauge detection positioning module is used for positioning the product on the transfer test platform. The plug gauge detection module is used for shape detection of the product on the transfer test platform. The pull ring detection module is used for pull ring test force and reset of the product on the transfer test platform. The left height test module and the right height test module are used for detecting the pull ring aperture size on both sides of the product on the transfer test platform. During detection, through steps 1-4, the positioning of the product and the three-stage progressive detection process (shape → pull ring function → aperture size) are realized. The previous NG immediately terminates the subsequent detection, reduces invalid work, shortens the single detection time, and thus realizes the multi-dimensional automatic detection of the optical module pull ring on the same detection equipment, effectively improves the work efficiency, and controls the product quality more accurately and reliably, which is beneficial to meet the higher quality product requirements.

[0018] To make the structure characteristics and effects of the present application clearer, the present application will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a perspective view of an optical module pull ring detection device of an embodiment of the present application (including a rack); Figure 2 is a perspective view of the internal structure of an optical module pull ring detection device of an embodiment of the present application (without showing the upper cover); Figure 3 is a distribution diagram of a carrying three-axis, the detection device, a product feeding assembly line, a product discharging assembly line, and an NG discharging assembly line of an embodiment of the present application; Figure 4 is a perspective view of the detection device of an embodiment of the present application; Figure 5 is a structural view of the product pressing module of an embodiment of the present application; Figure 6 is a structural view of the transfer test platform of an embodiment of the present application; Figure 7 is a structural view of the plug gauge detection positioning module and the plug gauge detection module of an embodiment of the present application; Figure 8 is a structural view of the pull ring detection module of an embodiment of the present application; Figure 9 is a structural diagram of a left height test module and a right height test module of an embodiment of the present application; Figure 10 A detection method step diagram of the optical module pull ring detection equipment of the embodiment of the present application. DETAILED DESCRIPTION

[0020] Please refer to Figures 1 to 10 , which shows the specific structure of the embodiment of the present application.

[0021] In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0022] An optical module pull ring detection equipment, comprising a rack 100 and a carrying three-axis 10, a detection device 20 and a flow belt 30 arranged on the rack 100; further comprising a main control system 200, the main control system 200 is connected to control the carrying three-axis 10, the detection device 20, the flow belt 30.

[0023] The detection device 20 comprises a transfer test platform 21, a product compression module 22, a plug gauge detection positioning module 23, a plug gauge detection module 24, a pull ring detection module 25, a left height test module 26 and a right height test module 27. The carrying three-axis 10 is connected to the flow belt and the transfer test platform 21; The product compression module 22 is used to compress the product on the transfer test platform 21; The plug gauge detection positioning module 23 is used to position the product on the transfer test platform 21; The plug gauge detection module 24 is used to detect the shape of the product on the transfer test platform 21; The pull ring detection module 25 is used to test the pull force of the pull ring of the product on the transfer test platform 21 and whether it can reset; The left height test module 26 and the right height test module 27 are used to detect the size of the pull ring on both sides of the product on the transfer test platform 21.

[0024] Specifically in this embodiment, the optical module pull ring detection equipment is mainly used for: 1, detecting the shape size of the product; 2, detecting the pull force of the pull ring and whether it can reset; 3, detecting the size of the pull ring on both sides when pulled out. The shape size includes the left and right width size L1 and the up and down thickness size L2 of the head of the optical module.

[0025] As Figures 1 to 3 shown, the optical module pull ring detection device includes a rack 100 and a flow belt 30, a carrying three-axis 10, and a detection device 20 arranged on the rack 100. The product (i.e., the optical module) flows into the station from the upper station, is carried by the carrying three-axis 10, is placed into the detection device 20 by the carrying three-axis 10 for detection, is taken out after detection, and is placed into the flow belt to flow into the next station. Specifically, the flow belt 30 includes a product feeding flow belt 31, a product discharging flow belt 32, and an NG discharging flow belt 33. The product flows into the product feeding flow belt 31 at a set position. The carrying three-axis 10 takes the product from the product feeding flow belt 31. Then, the product is placed into the detection device 20 by the carrying three-axis 10 for detection. After detection, the carrying three-axis 10 places the product on the product discharging flow belt 32. If the product is an NG product, the product is placed on the NG discharging flow belt 33.

[0026] As Figure 4 shown, the detection device 20 includes a transfer test platform 21, a product pressing module 22, a plug gauge detection positioning module 23, a plug gauge detection module 24, a pull ring detection module 25, a left height test module 26, a right height test module 27, and a product information scanning code module 28. When the product is placed into the transfer position (i.e., the transfer test platform 21), the product pressing module 22 extends to press the product. Then, the plug gauge detection positioning module 23 extends to position the product. Then, the plug gauge detection module 24 detects the product shape and determines whether the product shape is compliant through a pressure sensor. Then, the pull ring detection module 25 tests the pull ring and determines the pull ring force through a pressure sensor. Then, the left height test module 26 and the right height test module 27 extend to detect whether the pull ring notch is compliant. After the product test is completed, the carrying three-axis 10 clamps and moves the product to the scanning code station to be scanned and matched by the product information scanning code module 28, thereby realizing full-automatic detection with high precision, high efficiency, and high integration.

[0027] As Figure 5 and Figure 6As shown, the transfer test platform 21 is provided with a positioning groove 2101, the left side of the transfer test platform 21 corresponding to the positioning groove 2101 is provided with a stop block 211, and the rear side of the transfer test platform 21 corresponding to the positioning groove 2101 is provided with a limiting block 212. The product 300 is placed on the transfer test platform 21, located in the positioning groove 2101, and the ring hole of the pull ring is sleeved on the limiting block 212. The product pressing module 22 includes an up-down pressing mechanism and a left-right pressing mechanism. The up-down pressing mechanism includes a translation air cylinder 221, a lower pressing air cylinder 222, and a lower pressing block 223. The lower pressing block 223 is connected to the lower pressing air cylinder 222 and is controlled by the lower pressing air cylinder 222 to perform a lower pressing action. The translation air cylinder 221 is connected to the lower pressing air cylinder 222 to translate the lower pressing air cylinder 222 and the lower pressing block 223 left and right to extend toward or away from the transfer test platform 21 (to the upper side of the transfer test platform 21, and then the lower pressing block 223 is controlled by the lower pressing air cylinder 222 to perform a lower pressing action, and when it needs to move away, it is reset upward and then translated leftward). The left-right pressing mechanism includes a side pressing air cylinder 224 and a side pressing block 225. The side pressing air cylinder 224 drives the side pressing block 225 to translate left and right to press one side of the product 300 (when the product is placed on the transfer test platform 21, the other side of the product is limited by the preinstalled stop block 211 on the transfer test platform 21). When the product 300 is placed in the transfer position (i.e., the transfer test platform 21), the ring hole of the pull ring is sleeved on the limiting block 212, the side pressing air cylinder 224 drives the side pressing block 225 to translate leftward to press the right side of the product 300, at this time the left side of the product 300 is positioned by the stop block 211, then the translation air cylinder 221 controls the lower pressing air cylinder 222 and the lower pressing block 223 to extend rightward, and the lower pressing air cylinder 222 controls the lower pressing block 223 to press downward on the top of the product 300, thus the left, right, top, and bottom surfaces of the product 300 are positioned. Further, a product lifting air cylinder 226 and a support table 227 are arranged on the front side of the transfer test platform 21. The product lifting air cylinder 226 drives the support table 227 to perform an up-down lifting action. When the product 300 is placed in the transfer position, the product lifting air cylinder 226 drives the support table 227 to ascend to support the head end of the optical module (at this time, it is in a supporting state), avoiding the head end of the optical module from being unstable, then the up-down pressing mechanism and the left-right pressing mechanism complete the clamping and positioning of the optical module, then the product lifting air cylinder 226 drives the support table 227 to descend to reset (at this time, it is in an avoiding state). The dynamic support positioning of the support table 227 ensures that the product is not deformed by suspension, which is beneficial to the detection accuracy of the product size.

[0028] As Figure 7As shown, the plug gauge detection positioning module 23 comprises a lifting positioning mechanism 231, which comprises a lifting cylinder 2311 and a lifting positioning piece 2312, and the lifting cylinder 2311 drives the lifting positioning piece 2312 to perform lifting action. The plug gauge detection module 24 comprises a plug gauge 241, a plug gauge floating mechanism 242, a first pressure sensor 243 and a first test transfer mechanism 244, the plug gauge 241 is connected to the plug gauge floating mechanism 242, the plug gauge floating mechanism 242 can be deflected in up-down and left-right directions, so that the plug gauge 241 can float to improve detection matching degree, the first pressure sensor 243 is arranged on the plug gauge floating mechanism 242 in front-back direction, so that the plug gauge 241 can be tested in front-back action, and the first pressure sensor 243 continuously reads pressure value at the same time. The first test transfer mechanism 244 is connected with a first transfer seat 2441, and the first test transfer mechanism 244 drives the first transfer seat 2441 to perform front-back translation, and the plug gauge detection positioning module 23, the plug gauge 241, the plug gauge floating mechanism 242 and the first pressure sensor 243 are arranged on the transfer seat 2411. When the product is placed in the transfer position (and the positioning is completed), the first test transfer mechanism 244 extends the lifting positioning mechanism 231 towards the product side, the lifting positioning piece 2312 positions the top of the product downwards, the lifting positioning piece 2312 is lifted after the product is positioned, the first test transfer mechanism 244 retreats to avoid space, then the first test transfer mechanism 244 extends towards the product side again, so that the plug gauge 241 is nested in the head of the optical module in front-back direction, so as to detect the product, and the first pressure sensor 243 continuously reads pressure value during the test, when the pressure value exceeds the set upper limit and the first test transfer mechanism 244 controls the first transfer seat 2441 to be not in the specified position, it is determined as NG, otherwise, during the process that the first test transfer mechanism 244 controls the first transfer seat 2441 to move to the specified position, the pressure value does not exceed the set upper limit, and it is OK. In this way, the plug gauge floating mechanism 242 is arranged, which is convenient for multidirectional adaptive deflection compensation of assembly tolerance, cooperates with pressure-displacement double signal criterion, effectively reduces false detection rate, and is beneficial to ensure product precision and reliability enhancement.

[0029] As Figure 8As shown, the pull ring detection module 25 includes a pull ring test hook 251, a lifting platform 252, a second test transfer mechanism 253, and a second pressure sensor 254. The second test transfer mechanism 253 is connected with a second transfer seat 2531 and drives the second transfer seat 2531 to translate forward and backward. The lifting platform 252 is arranged on the second transfer seat 2531. The pull ring test hook 251 is arranged on the lifting platform 252. The lifting of the pull ring test hook 251 is controlled by the lifting platform 252. The first pressure sensor 243 is arranged on the pull ring test hook 251 in the front-rear direction. During testing, the product is placed in the transfer position. After the product positioning is completed, the second test transfer mechanism 253 moves towards the side where the pull ring is located (forward). When the pull ring test hook 251 is located below the ring hole of the pull ring, the lifting platform 252 controls the pull ring test hook 251 to rise, so that the pull ring test hook 251 extends into the ring hole of the pull ring. Then, the second test transfer mechanism 253 moves backward. When the pull ring test hook 251 contacts the pull ring, the pull ring force value is read by the second pressure sensor 254. Through repeated pulling and resetting (backward pulling and forward resetting), the force values of the pull ring from small to large and from large to small are read to determine the product OK / NG. Specifically, when pulling backward, the force value of the pull ring from small to large is read. If the value exceeds the set upper limit and the second test transfer mechanism 253 does not reach the specified position, it means that a large pulling force needs to be applied, and then NG is determined. Otherwise, OK is determined. When moving forward, it is detected whether the pull ring can be reset. Specifically, when resetting, the pull ring is reset by its own spring force. The pull ring test hook 251 only acts as a barrier (not actively pushed back). At this time, the mechanical performance of the second pressure sensor 254 can reflect the reset state. When the pull ring is reset by its own spring force, the role of the pull ring test hook 251 changes to passive barrier. At this time: if the reset is successful, the pull ring hits the pull ring test hook 251 at high speed, generating an instantaneous impact force peak. Then, the spring force continuously presses the pull ring test hook 251 (steady force change). If the reset fails, it means that the pull ring does not reset and pops out. The pull ring test hook 251 needs to be actively pushed back. At this time, the pull ring test hook 251 will push the other end (front end) in the ring hole of the pull ring, generating a pushing force. This difference will directly appear as the shape characteristics of the "force-time curve" in the pressure data of the second pressure sensor 254. The specific test performance and determination method are as follows: (1) Curve characteristics of successful normal reset In stage ① impact instant: the pull ring hits the pull ring test hook 251 at high speed. The second pressure sensor 254 displays an extremely short time (e.g., millisecond level) impact force peak (the peak value may be much higher than the steady force).

[0030] In stage ② steady-state compression: after the impact, the pull ring (spring force) continues to compress the pull ring test hook 251, and the pressure stabilizes at the pre-pressure value of the reset spring. The second pressure sensor 254 reads that the force of the pull ring decreases from large to small in a short time (more quickly).

[0031] (2) Curve characteristics of reset failure (the pull ring test hook 251 actively pushes back) Impact-free phase: Because the pull ring does not pop out, the pull ring test hook 251 directly contacts the stationary pull ring when it moves in the reverse direction. Then, the pull ring test hook 251 needs to push the pull ring to overcome friction / jamming force. During the process of pushing back (forward), the second pressure sensor 254 reads that the force on the pull ring decreases from large to small over a longer period of time (more slowly).

[0032] like Figure 9 As shown, both the left height testing module 26 and the right height testing module 27 include a height measuring and transferring mechanism G1 and a contact sensor G2. The height measuring and transferring mechanism G1 drives the contact sensor G2 to move left and right. When the product is placed in the transfer position and the product positioning is completed, the left height testing module 26 and the right height testing module 27 move towards each other simultaneously. When the head probe of the contact sensor G2 contacts the product, the height value is obtained (to check whether the size of the latch is compliant when the pull ring is pulled out). Then, the left height testing module 26 and the right height testing module 27 move back in opposite directions and compare the obtained value with the reference value to determine whether the product is OK or NG.

[0033] Since the left height testing module 26 and the right height testing module 27 are located on the left and right sides of the transfer testing platform 21, the plug gauge detection and positioning module 23 and the plug gauge detection module 24 are located on the front side of the transfer testing platform 21, and the pull ring detection module 25 is located on the rear side of the transfer testing platform 21, its structure is compact and reasonable. This surrounding layout optimizes space utilization, makes the entire testing device structure more compact, reduces the equipment footprint, facilitates the testing process, minimizes the displacement distance of each testing function, and reduces the installation cost. The energy consumption and time of the placement action are conducive to improving the testing efficiency. The product is placed on the transfer test platform 21. First, the head shape dimensions (left and right width dimension L1, top and bottom thickness dimension L2) of the optical module are tested using the plug gauge 241. If the plug gauge 241 fails the test, the subsequent test is not required. Then, the pull ring pull force and whether it can be reset are tested. If the test fails, the subsequent test is not required. If the test is qualified, the pull ring is tested to see if the pull ring notch (also known as the notch) size is compliant when the pull ring is fully pulled out by the pull ring test hook 251.

[0034] And, a light module pull ring detection method is provided, which utilizes the light module pull ring detection device as described above to perform detection, and the detection method comprises the following steps: Step 1, positioning the product on the transfer test platform: the product is placed on the transfer test platform by the carrying three-axis, and the product is pre-positioned by the transfer test platform, and then the product is corrected and positioned by the product pressing module extending to press the product; Step 2, detecting the product size: the plug gauge detection positioning module extends towards the transfer test platform to position the product, and then the plug gauge detection module extends towards the transfer test platform to detect the product size; if it is unqualified, the product is taken out from the transfer test platform by the carrying three-axis as an NG product, and if it is qualified, step 3 is continued; Step 3, detecting the pull ring tension and whether it can be reset: the pull ring detection module extends towards the transfer test platform to detect, specifically, the pull ring detection module repeatedly pulls the pull ring and resets, detects the pull ring tension and judges whether it can be reset; if it is unqualified, the product is taken out from the transfer test platform by the carrying three-axis as an NG product, and if it is qualified, step 4 is continued; Step 4, detecting the product pull ring pull-out jaw size: the left height test module and the right height test module extend towards the transfer test platform to detect whether the product pull ring jaw size is qualified; if it is unqualified, the product is taken out from the transfer test platform by the carrying three-axis as an NG product, and if it is qualified, the product is taken out from the transfer test platform by the carrying three-axis as an OK product and flows along the water belt.

[0035] The design emphasis of the present application is that it mainly takes the product from the assembly line by the carrying three-axis, carries out multiple detections on the detection device, and then moves to the assembly line. In particular, the detection device comprises a transfer test platform, a product pressing module, a plug gauge detection positioning module, a plug gauge detection module, a pull ring detection module, a left height test module, and a right height test module. The transfer test platform is used for placing and positioning the product. The product pressing module is used for pressing the product placed on the transfer test platform. The plug gauge detection positioning module is used for positioning the product on the transfer test platform. The plug gauge detection module is used for detecting the shape of the product on the transfer test platform. The pull ring detection module is used for testing the pull force of the pull ring of the product on the transfer test platform and whether it can reset. The left height test module and the right height test module are used for detecting the size of the pull ring on both sides of the product on the transfer test platform. During detection, steps 1-4 are used to realize the positioning of the product and the three-level progressive detection process (shape→pull ring function→bayonet size). The previous NG immediately terminates the subsequent detection, reduces invalid work, shortens the single detection time, and thus realizes the multi-dimensional automatic detection of the optical module pull ring on the same detection equipment at one time, effectively improves the work efficiency, and controls the product quality more accurately and reliably, which is conducive to meeting the higher quality product requirements.

[0036] The above is only a preferred embodiment of the present application, and does not limit the technical scope of the present application. Any slight modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the scope of the technical solution of the present application.

Claims

1. A testing device for optical module pull rings, characterized in that, Includes a frame and a conveyor belt, a three-axis transporter, and a detection device mounted on the frame; The testing device includes a transfer testing platform, a product clamping module, a plug gauge testing and positioning module, a plug gauge testing module, a pull ring testing module, a left height testing module, and a right height testing module; The transport three-axis is connected to the conveyor belt and the transfer test platform; The product clamping module is used to clamp the products on the transit test platform; The plug gauge detection and positioning module is used to locate the products on the transit testing platform; The plug gauge inspection module is used to inspect the appearance of products on the transit testing platform. The pull ring detection module is used to test the pull force and whether the pull ring of the product on the transfer test platform can be reset. The left height test module and the right height test module are used to detect the dimensions of the latches on both sides of the pull ring of the product on the transfer test platform.

2. The optical module pull ring testing device according to claim 1, characterized in that: The plug gauge detection module and the pull ring detection module are located on opposite sides of the front and rear of the transfer test platform, respectively, and the left height test module and the right height test module are located on opposite sides of the left and right of the transfer test platform, respectively.

3. The optical module pull ring testing device according to claim 1, characterized in that: The product clamping module includes an upper and lower clamping mechanism and a left and right clamping mechanism. After the product is placed on the transfer test platform, the bottom of the product is restricted by the transfer test platform, and the left or right side of the product is restricted by a pre-set stop on the transfer test platform. The left and right clamping mechanisms clamp towards the corresponding right or left side of the product, and the upper and lower clamping mechanisms clamp downwards to the top of the product.

4. The optical module pull ring testing device according to claim 3, characterized in that: The upper and lower pressing mechanism includes a translation cylinder, a pressing cylinder, and a pressing block. The pressing block is connected to the pressing cylinder, and the pressing cylinder controls the pressing block to press down. The translation cylinder is connected to the pressing cylinder to move the pressing cylinder and the pressing block left and right to extend or move away from the transfer test platform. And / or: The left and right pressing mechanism includes a side pressing cylinder and a side pressing block. The side pressing cylinder drives the side pressing block to move left and right to press it towards one side of the product.

5. The optical module pull ring testing device according to claim 1 or 3, characterized in that: The front of the transfer testing platform is equipped with a product lifting cylinder and a support platform. The product lifting cylinder drives the support platform to move up and down. When the product is placed in the transfer position, the product lifting cylinder drives the support platform to rise to support the bottom of the head end of the optical module. Then, the upper and lower clamping mechanisms and the left and right clamping mechanisms complete the clamping and positioning of the optical module. Finally, the product lifting cylinder drives the support platform to fall and reset.

6. The optical module pull ring testing device according to claim 1, characterized in that: The plug gauge detection and positioning module includes a lifting and positioning mechanism; the plug gauge detection module includes a plug gauge, a plug gauge floating mechanism, a first pressure sensor, and a first test transfer mechanism. The plug gauge is connected to the plug gauge floating mechanism, and the first pressure sensor is connected to the plug gauge floating mechanism along the front-back direction, so that when the plug gauge moves back and forth during testing, the pressure value is continuously read by the first pressure sensor. The first test transfer mechanism is connected to a first transfer seat, and the first test transfer mechanism drives the first transfer seat to move back and forth. The plug gauge detection and positioning module, the plug gauge, the plug gauge floating mechanism, and the first pressure sensor are all disposed on the transfer seat.

7. The optical module pull ring testing device according to claim 1, characterized in that: The pull ring detection module includes a pull ring test hook, a lifting platform, a second test transfer mechanism, and a second pressure sensor. The second test transfer mechanism is connected to a second transfer seat and drives the second transfer seat to move back and forth. The lifting platform is set on the second transfer seat, and the pull ring test hook is set on the lifting platform. The lifting platform controls the lifting and lowering of the pull ring test hook. The first pressure sensor is connected to the pull ring test hook in the front-back direction.

8. The optical module pull ring testing device according to claim 1, characterized in that: Both the left height test module and the right height test module include a height measurement and transfer mechanism and a contact sensor. The height measurement and transfer mechanism drives the contact sensor to move left and right.

9. The optical module pull ring testing device according to claim 1, characterized in that: The testing device also includes a product information scanning module. After the product test is completed, the three-axis transporter moves the product to the scanning station and the product information scanning module performs scanning and matching.

10. A method for detecting the pull ring of an optical module, characterized in that, The optical module pull ring testing equipment according to any one of claims 1 to 9 is used for testing, and the testing method includes the following steps: Step 1: Position the product on the transfer test platform: The three-axis transporter places the product on the transfer test platform, which then initiates pre-positioning. Subsequently, the product clamping module extends to clamp the product for calibration and positioning. Step 2: Inspect the product's external dimensions: First, the plug gauge inspection and positioning module extends to position the product. Then, the plug gauge inspection module inspects the product's external dimensions. If the product fails to meet the requirements, the transport triaxial axis removes the product from the transfer testing platform and treats it as a non-product. If the product passes the requirements, proceed to Step 3. Step 3: Detect pull ring tension and reset capability: The pull ring detection module repeatedly pulls and resets the pull ring to detect the pull ring tension and determine whether it can be reset. If it fails, the transport triaxial axis removes the product from the transfer test platform and treats it as a non-product. If it passes, continue to step 4. Step 4: Check the size of the pull ring when the product is pulled out: The left height test module and the right height test module extend to check whether the size of the pull ring of the product is compliant; if it is not compliant, the three-axis transporter takes the product out of the transfer test platform and treats it as an N product; if it is compliant, the three-axis transporter takes the product out of the transfer test platform and treats it as an OK product and flows out along the conveyor belt.

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