An assembly size detection device based on relay structure processing

Abstract

The application relates to the technical field of detection devices, and discloses an assembly size detection device based on relay structure processing, which comprises a processing table, a rotating shaft conveying mechanism, an optical detection mechanism and a pressing assembly mechanism, a detection chamber is fixedly connected above the processing table, the rotating shaft conveying mechanism is arranged on the left and right sides of the processing table and is composed of multiple groups of equidistant conveying shafts and rotating driving structures for driving the conveying shafts to rotate at the same speed, the conveying shafts are divided into fixed rotating shafts in front and back sections and rotating avoidance rotating shafts in a middle section along a conveying path, and the conveying shafts are provided with liftable upper supporting rings and position-fixed lower supporting rings in layers, the application integrates conveying, detection and assembly processes in the same device, discards the traditional multi-station split operation mode, does not need to transfer workpieces for multiple times, avoids appearance defects caused by transfer bumps, simultaneously reduces equipment floor space, saves transfer and feeding and discharging invalid working hours, and optimizes production line production rhythm.

Description

Technical Field

[0001] This invention belongs to the field of detection device technology, specifically relating to an assembly dimension detection device based on relay structure processing. Background Technology

[0002] Incoming material inspection of relay bases and housings, as well as inspection of assembly joint gaps, are two key quality control processes to ensure the insulation performance, protection level, and overall service life of relays. Currently, most automated mass production lines in the industry adopt a multi-station, separate operation mode: bases and housings are first separated to an independent vision station for single-sided visual inspection. Qualified products are then transferred to a dedicated pressing station for assembly via a transfer conveyor. The assembled products need to be transferred a second time to a downstream re-inspection station to check the joint gaps. The three processes of conveying, inspection, and assembly are achieved in stages using multiple sets of non-interactive equipment.

[0003] This split-type production line solution has many drawbacks in practical use: First, the workpiece needs to be transferred back and forth between workstations multiple times. During the transfer process, mechanical vibration and tooling scraping can easily cause secondary appearance defects such as bumps and scratches on the base and shell, directly increasing the scrap rate of products with poor appearance. Secondly, the separate layout of multiple equipment not only occupies a large amount of workshop production area, but also generates a lot of non-productive and ineffective working hours due to the reciprocating transfer of workpieces and repeated loading and unloading. The waiting time for processes and the flow of materials lengthen the processing time of a single piece, significantly reducing the overall utilization rate of equipment and restricting the production rhythm and delivery efficiency of the entire production line. Summary of the Invention

[0004] This invention provides an assembly dimension inspection device based on relay structure processing, which solves the technical problems in related technologies such as relay production line inspection, assembly substation separate operation, multiple workpiece transfer easily causing secondary appearance damage, large cumulative positioning deviation, low inspection accuracy, large footprint of multi-station layout, and loss of production cycle time due to process flow.

[0005] This invention provides an assembly dimension detection device based on relay structure processing, including a processing table, a rotating shaft conveying mechanism, an optical detection mechanism, and a pressing assembly mechanism; A testing chamber is fixedly connected above the processing table; The rotating shaft conveying mechanism is located on the left and right sides of the processing table. It consists of multiple sets of equidistant conveying shafts and a rotary drive structure that drives the conveying shafts to rotate at a constant speed. The conveying shaft is divided into fixed rotating shafts at the front and rear sections and a rotating clearance rotating shaft in the middle section along the conveying path. The conveying shaft is provided with a liftable upper support ring and a fixed lower support ring, which respectively support the relay base and the relay housing. The rotating avoidance shaft includes an upper shaft and a lower shaft hinged at opposite ends, and the upper shaft and the lower shaft are fitted with a sleeve that can be vertically raised and lowered. The optical inspection mechanism is arranged around the workpiece conveying trajectory; The pressing assembly mechanism is installed above the rotating avoidance shaft; After the base and the outer shell are inspected by the optical inspection mechanism, they are transported to the rotating avoidance shaft. The pressing assembly mechanism presses down the base to make the base and the outer shell initially insert. Then, the upper support ring and the sleeve descend in sequence, causing the upper shaft to rotate and drive the upper support ring to avoid the descending area of ​​the base. Finally, the pressing assembly mechanism presses down the base again to make the base and the outer shell completely insert. Then, the optical inspection mechanism inspects the insertion gap between the base and the outer shell.

[0006] In a preferred embodiment, the distance between the conveying shafts on the left and right sides is adapted to the width of the base and the housing to ensure stable conveying alignment. The base and the housing are conveyed in a staggered manner. An interceptor is provided below the pressing assembly mechanism to intercept and align the base and the housing.

[0007] In a preferred embodiment, the upper shaft includes a limiting segment one with a larger diameter and a connecting segment one with a smaller diameter, and the lower shaft includes a limiting segment two with a larger diameter and a connecting segment two with a smaller diameter. The limiting segment one and the limiting segment two have the same diameter, and the connecting segment one and the connecting segment two have the same diameter.

[0008] In a preferred embodiment, the sleeve includes a cylinder and a linear drive mechanism. The inner diameter of the cylinder is the same as the diameter of connecting section one and connecting section two, and the outer diameter of the cylinder is less than or equal to the limiting section one and limiting section two. The linear drive mechanism is fixedly installed on the inner side wall of the detection chamber. A connecting lug is fixedly provided on the outer side of the cylinder, and the connecting lug is fixedly connected to the driving end of the linear drive mechanism.

[0009] In a preferred embodiment, the upper support ring includes a support ring body and a connecting ear three. A connecting ear two is fixedly provided on the outer side wall of the support ring body. The connecting ear three is rotatably connected to the upper shaft body. A linear actuator two is fixedly provided between the connecting ear two and the connecting ear three. A telescopic rod is hinged between the connecting ear three and the connecting ear one.

[0010] In a preferred embodiment, the left and right rotating avoidance shafts are each provided with a single linear drive mechanism 1, a linear actuator 2, and a telescopic rod, and the adjacent connecting ears 1, 2, and 3 are fixedly connected by connecting rods.

[0011] In a preferred embodiment, the optical inspection mechanism includes an inspection module one installed on the left, right and top inner walls of the inspection chamber, an inspection module two installed on the top wall of the inspection chamber, an inspection module three installed above the processing table, and an inspection module four installed below the pressing assembly mechanism.

[0012] In a preferred embodiment, detection modules one, two, and three are equipped with linear trajectory drive modules to adjust their positions. Detection module one, located on the top wall of the detection chamber, is also equipped with a rotation drive module to adjust the shooting angle of detection module one. Detection module four is equipped with a ring trajectory drive module to enable detection module four to surround the assembled base and shell to shoot at the joint gap. Detection modules one, three, and four use industrial cameras, and detection module two uses a telecentric imaging optical lens.

[0013] In a preferred embodiment, the pressing assembly mechanism includes a linear actuator three fixedly connected to the testing chamber. The driving end of the linear actuator three is fixedly provided with a pressing plate. The interceptor and the circular trajectory driving module are fixedly installed below the pressing plate, and a plurality of pressure sensing modules are vertically embedded in the side wall of the interceptor.

[0014] In a preferred embodiment, a flipping assembly is provided on both sides of the detection chamber. The flipping assembly includes a drive motor fixedly connected to the detection chamber, and a linear actuator is fixedly provided at the drive end of the drive motor.

[0015] The beneficial effects of this invention are as follows: This invention integrates conveying, testing, and assembly processes into a single device, eliminating the traditional multi-station separate operation mode. It eliminates the need for multiple workpiece transfers, avoiding appearance defects caused by bumps during transfer, reducing the equipment footprint, saving ineffective time spent on transfer and loading / unloading, and optimizing the production line's cycle time. The layered staggered conveying structure of this invention, combined with a rotating avoidance shaft, can smoothly complete the step-by-step pressing of the base and the outer shell. The optical inspection mechanism is arranged around the workpiece to achieve complete inspection of the workpiece's six-sided appearance, internal cavity dimensions, and assembly gaps without blind spots. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the detection chamber of the present invention.

[0018] Figure 3 This is a schematic diagram of the rotating shaft conveying mechanism of the present invention.

[0019] Figure 4 This is a schematic diagram of the rotating avoidance shaft structure of the present invention.

[0020] Figure 5 This is another structural schematic diagram of the rotating avoidance shaft of the present invention.

[0021] Figure 6 This is a schematic diagram of the upper and lower shaft structures of the present invention.

[0022] Figure 7 This is a schematic diagram of the structure of connector ear one, connector ear two, and connector ear three of the present invention.

[0023] Figure 8 This is a schematic diagram of the optical detection mechanism of the present invention.

[0024] Figure 9 This is a schematic diagram of the pressing assembly mechanism of the present invention.

[0025] Figure 10 This is a schematic diagram of the flipping component structure of the present invention.

[0026] In the diagram: 1. Processing table; 2. Rotary conveyor mechanism; 21. Conveyor shaft; 211. Fixed rotating shaft; 212. Rotary clearance shaft; 2121. Upper shaft body; 21211. Limiting section one; 21212. Connecting section one; 2122. Lower shaft body; 21221. Limiting section two; 21222. Connecting section two; 2123. Sleeve; 21231. Cylinder body; 21232. Linear drive mechanism one; 21233. Connecting ear one; 23. Upper support ring; 231. Support ring body; 232. Connecting ear two; 233. Connecting ear three; 234 1. Linear actuator II; 235. Telescopic rod; 24. Lower support ring; 4. Optical inspection mechanism; 401. Inspection module I; 402. Inspection module II; 403. Inspection module III; 404. Inspection module IV; 5. Pressing assembly mechanism; 51. Linear actuator III; 52. Pressing plate; 6. Base; 7. Housing; 8. Interceptor; 9. Inspection chamber; 10. Tilting assembly; 101. Drive motor; 102. Linear actuator IV; 11. Linear trajectory drive module; 12. Rotary drive module; 13. Circular trajectory drive module. Detailed Implementation

[0027] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content. Example

[0028] like Figures 1 to 4 As shown, an assembly dimension detection device based on relay structure processing includes a processing table 1, a rotating shaft conveying mechanism 2, an optical inspection mechanism 4, and a pressing assembly mechanism 5. A testing chamber 9 is fixedly connected above the processing table 1; The rotating shaft conveying mechanism 2 is located on the left and right sides of the processing table 1. It consists of multiple sets of equidistant conveying shafts 21 and a rotary drive structure that drives the conveying shafts 21 to rotate at a constant speed. The conveying shafts 21 are divided into fixed rotating shafts 211 at the front and rear sections and rotating clearance rotating shafts 212 in the middle section along the conveying path. The conveying shafts 21 are layered with an upper support ring 23 that can be raised and lower support ring 24 that is fixed in position, which respectively support the relay base 6 and the relay housing 7. The rotating avoidance pivot 212 includes an upper pivot 2121 and a lower pivot 2122 hinged at opposite ends. The upper pivot 2121 and the lower pivot 2122 are fitted with a sleeve 2123 that can be vertically raised and lowered. When the sleeve 2123 is between the upper pivot 2121 and the lower pivot 2122, it straightens the upper pivot 2121. When it is below the upper pivot 2121, the upper pivot 2121 can be flipped. The optical inspection mechanism 4 is arranged around the workpiece conveying track. The optical inspection mechanism 4 is used to perform optical dimension and appearance inspection on the outer shell 7 and the relay during the conveying process. The pressing assembly mechanism 5 is installed above the rotating avoidance shaft 212, and collects images in real time from the top, bottom, left and right and front and rear sides of the base 6 and the outer shell 7 respectively; The base 6 and the outer shell 7 undergo pre-assembly appearance and dimensional inspection by the optical inspection mechanism 4. The equipment simultaneously collects imaging data and performs quality judgment. If any appearance or internal cavity dimensional defects are detected in the workpiece, the system generates a defect mark in real time. The system also uses a grating sensor module in the inspection chamber 9 to capture the workpiece's passage sequence, binding the defect judgment signal with the grating trigger sequence for storage, thus achieving full workpiece tracking. The workpiece flows forward normally with the conveyor shaft 21, completely undergoing the assembly and joint gap inspection processes. After assembly, the optical inspection mechanism 4 inspects the joint gap between the base 6 and the outer shell 7. If the joint gap size exceeds the acceptable threshold, the system simultaneously adds an assembly defect mark and updates the workpiece timing binding information. The sorting robot arm then... The relay workpieces with appearance or dimensional defects before assembly or those that fail the joint gap inspection after assembly are identified and picked up separately. Only finished products that pass both the incoming material and joint gap inspections are discharged normally. The base 6 and the outer shell 7 that pass the pre-assembly inspection are transported to the rotating avoidance shaft 212 to perform the assembly process. After the qualified products are in place, the pressing assembly mechanism 5 presses down the base 6 to make the base 6 and the outer shell 7 initially insert. Then the upper support ring 23 and the sleeve 2123 descend in sequence, causing the upper shaft 2121 to rotate and drive the upper support ring 23 to avoid the descending area of ​​the base 6. Finally, the pressing assembly mechanism 5 presses down the base 6 again to make the base 6 and the outer shell 7 completely insert. After the assembly is completed, the optical inspection mechanism 4 inspects the joint gap between the base 6 and the outer shell 7.

[0029] In this embodiment, the specific implementation scenario is as follows: the relay housing 7 and the base 6 workpiece are passed through the conveyor shaft 21 in sequence. The bottom end of the base 6 is placed on the upper support ring 23, while the housing 7 is placed on the lower support ring 24. The workpiece is conveyed by the cooperation of the conveyor shaft 21 with the upper support ring 23 and the lower support ring 24, which can prevent the workpiece from tilting. At the same time, when the workpiece passes through the fixed rotating shaft 211 at the front end, the optical detection mechanism 4 can take pictures of the left and right sides of the workpiece along the gap between the conveyor shafts 21, take pictures of the bottom area of ​​the workpiece from below, take pictures of the upper area of ​​the workpiece from above, and take pictures of the front and rear areas of the workpiece from the front and rear sides when the workpiece is briefly stopped from being conveyed, thereby realizing all-round shooting and detection of the workpiece. When the workpiece passes through the rotating avoidance shaft 212 in the middle section, the upper support ring 23 and the lower pressing assembly mechanism 5 descend synchronously, so that the base 6 and the outer shell 7 are initially inserted to prevent the base 6 from falling off. Then the upper support ring 23 descends again, so that the upper support ring 23 does not collide with the left and right ends of the base 6 when it rotates. Then the sleeve 2123 descends from between the upper shaft 2121 and the lower shaft 2122 to the lower shaft 2122, so that the upper shaft 2121 and the upper support ring 23 can rotate outward to avoid the descent trajectory of the base 6. Finally, the lower pressing assembly mechanism 5 presses down the base 6 again, so that the base 6 and the outer shell 7 are tightly inserted and fitted. Then the optical inspection mechanism 4 inspects the gap between the two. After the inspection is completed, the workpiece is conveyed away, and the sleeve 2123 rises and resets.

[0030] Traditional relay mass production lines employ separate workstations for inspection and assembly, requiring multiple transfers of workpieces across workstations. Vibrations during transfer and scratches from tooling can easily cause secondary damage to the workpiece's appearance. These separate equipment units occupy a large area, and the transfer process reduces production cycle time. This device eliminates the need for multi-station transfers. A single positioning operation can complete six-sided omnidirectional optical imaging inspection of the relay base 6 and housing 7 before assembly, as well as optical imaging inspection of the joint gaps between the two after assembly. The inspection has no blind spots, and the dimensions and appearance defects of the inner cavity of the housing 7, the outer wall of the base 6, and the assembly joints can all be completely identified, significantly improving the comprehensiveness and efficiency of the inspection.

[0031] It should be noted that the processing table 1 has a cavity inside for installing the rotary drive structure. The bottom end of the conveyor shaft 21 is rotatably connected to the processing table 1 and extends into the cavity. The rotary drive structure includes several driven sprockets fixedly connected to the conveyor shaft 21 and a driving sprocket rotatably installed in the cavity. The driving sprocket and the driven sprocket are connected by chain drive. A servo motor that drives the driving sprocket to rotate is installed in the cavity, which drives the driving sprocket to rotate and transmits the power to the conveyor shaft 21 to rotate and transport the workpiece. A sorting robotic arm (not shown in the figure) is set in the rear area of ​​the processing table 1. The sorting robotic arm is used to identify and pick up two types of defective workpieces: one type is the base 6 and the outer shell 7, which have appearance and size defects detected before assembly; the other type is the finished relay with non-compliant insertion gap size after assembly. Defective products are sorted and discharged separately. In addition, a grating sensing module is set in the detection chamber 9 to detect the conveying position of the base 6 and the outer shell 7 in real time and capture the workpiece passage sequence. The system binds and stores the incoming material defect and assembly gap defect judgment signals output by optical detection with the grating triggering sequence to realize the quality tracking of the entire process of workpieces. The upper support ring 23 and the lower support ring 24 on the fixed rotating shaft 211 of the front and rear sections are set as a single ring body and are rotatably or fixedly connected to the fixed rotating shaft 211. The upper support ring 23 may not be set on the fixed rotating shaft 211 of the rear section. The rotating clearance shaft 212 of the middle section is rotatably connected to the lower support ring 24 and forms a plug-in sleeve fit with the upper support ring 23. like Figures 1 to 3 As shown, the spacing between the left and right conveyor shafts 21 is adapted to the width of the base 6 and the outer shell 7 to ensure stable conveying alignment. The base 6 and the outer shell 7 are conveyed in a staggered manner. An interceptor 8 is provided below the pressing assembly mechanism 5 to intercept and align the base 6 and the outer shell 7.

[0032] It should be noted that the misaligned transport of the base 6 and the outer shell 7 allows an optical inspection mechanism 4 to inspect the base 6 and the outer shell 7 respectively. Furthermore, the interceptor 8 intercepts the base 6 and the outer shell 7, so that they automatically align when they come into contact with the interceptor 8 during transport, facilitating their assembly and inspection.

[0033] like Figure 5 and Figure 6 As shown, the upper shaft 2121 includes a limiting segment 21211 with a larger diameter and a connecting segment 21212 with a smaller diameter, and the lower shaft 2122 includes a limiting segment 21221 with a larger diameter and a connecting segment 21222 with a smaller diameter. The limiting segment 21211 and the limiting segment 21221 have the same diameter, and the connecting segment 21212 and the connecting segment 21222 have the same diameter.

[0034] It should be noted that the limiting section 1 21211 and the limiting section 2 21221 are fitted to the two sides of the base 6 and the outer shell 7 for guidance and limiting, to prevent them from shifting left and right during transportation. The connecting section 1 21212 and the connecting section 2 21222 are kept at a certain gap with the two sides of the base 6 and the outer shell 7. This gap is used to install the sleeve 2123 and to prevent the sleeve 2123 from blocking the workpiece.

[0035] like Figure 5 and Figure 6As shown, the sleeve 2123 includes a cylinder 21231 and a linear drive mechanism 21232. The inner diameter of the cylinder 21231 is the same as the diameter of the connecting section 21212 and the connecting section 21222, and the outer diameter of the cylinder 21231 is less than or equal to the limiting section 21211 and the limiting section 21221. The linear drive mechanism 21232 is fixedly installed on the inner wall of the detection chamber 9. A connecting lug 21233 is fixedly provided on the outer side of the cylinder 21231, and the connecting lug 21233 is fixedly connected to the driving end of the linear drive mechanism 21232. The end of the middle section rotation avoidance shaft 212 is coaxially fixed. A fixed encoder disk is provided. A photoelectric reading head is installed on the processing table 1 at the position corresponding to the encoder disk. The photoelectric reading head is electrically connected to the whole machine controller. The encoder disk has a reference engraving line and a dual-channel phase engraving line around its circumference. The photoelectric reading head collects the engraving line signal in real time. The controller determines the rotation direction of the middle section rotation avoidance shaft 212 based on the phase engraving line signal, and locates the circumferential point of the shaft through the reference engraving line signal. When the encoder disk and the photoelectric reading head cooperate to identify that the rotation surface of the connecting section 21212 is perpendicular to the workpiece conveying direction, the conveying shaft 21 stops running, so that the connecting section 21212 can rotate outward of the workpiece.

[0036] It should be noted that the cylinder 21231 is sleeved on the outside of the connecting section 1 21212 and the connecting section 2 21222. The linear drive mechanism 1 21232 drives the sleeve 2123 to rise and fall. When the sleeve 2123 is between the connecting section 1 21212 and the connecting section 2 21222, it straightens the upper shaft 2121. When it is below the connecting section 1 21212, the connecting section 1 21212 can rotate.

[0037] like Figure 5 and Figure 6 As shown, the upper support ring 23 includes a support ring body 231 and a connecting ear 233. A connecting ear 232 is fixed on the outer wall of the support ring body 231. The connecting ear 233 is rotatably connected to the upper shaft body 2121. A linear actuator 234 is fixed between the connecting ear 232 and the connecting ear 233. A telescopic rod 235 is hinged between the connecting ear 233 and the connecting ear 21233.

[0038] It should be noted that the upper support ring 23 is raised and lowered along the limiting section 21211 by the extension and retraction of the linear actuator 234. When the sleeve 2123 rises to between the connecting section 21212 and the connecting section 21222, the telescopic rod 235 retracts to its minimum amplitude. When the top of the sleeve 2123 descends to below the connecting section 21212, the telescopic rod 235 extends to its maximum amplitude. When the sleeve 2123 descends, the upper shaft 2121 automatically rotates to the outside of the workpiece under the limiting guidance of the telescopic rod 235, thus preventing the upper shaft 2121 from rotating to one side of the workpiece.

[0039] like Figure 8As shown, the optical inspection mechanism 4 includes an inspection module 401 installed on the left, right and top inner walls of the inspection chamber 9, an inspection module 402 installed on the top wall of the inspection chamber 9, an inspection module 403 installed above the processing table 1, and an inspection module 404 installed below the pressing assembly mechanism 5.

[0040] It should be noted that inspection module 1 401 inspects the external dimensions of the workpiece on the left, right, top, front and back sides; inspection module 2 402 inspects the internal dimensions of the workpiece; inspection module 3 403 inspects the bottom external dimensions of the workpiece; and inspection module 404 inspects the assembled workpiece.

[0041] like Figure 8 As shown, detection modules 1 (401), 2 (402), and 3 (403) are equipped with linear trajectory drive modules 11 to adjust their positions. Detection module 1 (401), located on the top wall of the detection chamber 9, is also equipped with a rotation drive module 12 to adjust the shooting angle of detection module 1 (401). Detection module 4 (404) is equipped with a ring trajectory drive module 13 to make detection module 4 (404) surround the assembled base 6 and the outer shell 7 to shoot the joint gap. Detection modules 1 (401), 3 (403), and 4 (404) use industrial cameras. The number of cameras is not limited and can be reasonably set according to the size of the relay. Detection module 2 (402) uses a telecentric imaging optical lens.

[0042] It should be noted that the linear trajectory drive module 11 includes a linear actuator that is fixedly connected to the detection chamber 9 or the processing table 1; like Figure 8 and Figure 9 As shown, for detection module 1 401 and detection module 3 403, the linear actuator drive end is fixed with a mounting panel. The mounting panel is used to fix the industrial camera. The industrial camera of detection module 1 401 located on the left and right sides of detection chamber 9 can be fixedly connected to the mounting panel, while the industrial camera of detection module 1 401 located on the top wall of detection chamber 9 is rotatably connected to the mounting panel via a shaft. The rotary drive module 12 adopts a micro motor, which is mounted on the panel and fixedly connected to the shaft of the industrial camera, thereby driving the industrial camera to rotate and adjust the shooting angle. When the industrial camera is facing down, it takes pictures of the top of the workpiece; when it is facing backward, it examines the front side of the workpiece; and when it is facing forward, it takes pictures of the rear side of the workpiece. The circular trajectory drive module 13 adopts a circular electric slide. Detection module 404 is installed at the bottom of the slider of the circular electric slide. The circular electric slide drives detection module 404 to move along the outside of the gap of the assembled workpiece to take pictures from all directions. For detection module 2 402, the drive end of the linear actuator is fixedly connected to the telecentric imaging optical lens, and the height of the telecentric imaging optical lens relative to the workpiece is adjusted. An industrial camera can be used to photograph the outer side of the workpiece, while the internal contour dimensions of the workpiece are detected by a telecentric imaging optical lens, enabling a one-time complete imaging measurement of internal bulges, grooves, and wall thickness.

[0043] like Figure 8 and Figure 9 As shown, the pressing assembly mechanism 5 includes a linear actuator 3 51 fixedly connected to the detection chamber 9. The driving end of the linear actuator 3 51 is fixedly provided with a pressing plate 52. The interceptor 8 and the circular trajectory drive module 13 are fixedly installed below the pressing plate 52, and several pressure sensing modules are vertically embedded and fixedly provided on the side wall of the interceptor 8.

[0044] It should be noted that the lower pressure plate 52 is lowered by the linear actuator 3 51, so that the interceptor 8 is located in front of the conveying trajectory of the base 6 and the outer shell 7. The conveying position of the base 6 and the outer shell 7 is detected by the pressure sensing module. After the base 6 and the outer shell 7 respectively abut against the pressure sensing module, the lower pressure plate 52 is lowered so that the base 6 and the outer shell 7 are inserted and assembled. Then the linear actuator 3 51 retracts and drives the lower pressure plate 52 to rise. When the assembled workpiece is conveyed to the ring track drive module 13, the lower pressure plate 52 is lowered again so that the ring track drive module 13 and the detection module 404 are lowered to the assembly gap of the workpiece for detection. After the detection is completed, the lower pressure plate 52 rises and the workpiece is conveyed away.

[0045] like Figure 8 and Figure 10 As shown, flipping components 10 are provided on both sides of the testing chamber 9. The flipping components 10 include a drive motor 101 fixedly connected to the testing chamber 9. A linear actuator 102 is fixedly provided at the drive end of the drive motor 101. The linear actuator 102 is located between two conveying shafts 21 and corresponds to the bottom movement trajectory of the base 6.

[0046] It should be noted that by conveying the base 6 and the outer shell 7 upwards respectively, the detection module 402 can be used to measure the internal structure and dimensions of the base 6 and the outer shell 7 respectively. After the detection is completed, the conveying stops when the lower corner of the base 6 moves to the linear actuator 102. The linear actuators 102 on both sides extend synchronously to abut the two corners of the front bottom of the base 6. Then, the drive motor 101 drives the linear actuators 102 to rotate 180°, so that the base 6 is flipped downwards for subsequent assembly and detection with the outer shell 7.

[0047] Working principle: The relay base 6 and the outer shell 7 are fed into the rotating shaft conveyor mechanism 2 in two staggered directions. The workpieces are respectively mounted on the layered upper support ring 23 and lower support ring 24, and are conveyed by the conveyor shaft 21 to the inspection chamber 9 above the processing table 1. When the workpiece passes through the fixed rotating shaft 211 area at the front of the inspection chamber 9, the optical inspection modules arranged around the conveyor track start working synchronously. The industrial camera equipped with linear and rotary drive modules 12 collects appearance images from the top, side and bottom of the workpiece respectively. The telecentric imaging optical lens extends into the inside of the workpiece to detect the internal cavity size, and completes the initial inspection of the appearance and size of the base 6 and the outer shell 7 without blind spots in one go.

[0048] After completing the initial inspection, the base 6 moves to the flipping station. The linear actuators 102 on both sides of the flipping assembly 10 in the inspection chamber 9 extend and press against the base 6. The drive motor 101 drives the linear actuators 102 to flip 180° synchronously, turning the base 6 over. The flipped base 6 and the outer shell 7 continue to be conveyed until they reach the middle section rotation avoidance shaft 212. The interceptor 8 below the pressing assembly mechanism 5 identifies the workpiece in place through the pressure sensing module on the side wall, limiting and aligning the base 6 and the outer shell 7. Then, the linear actuators 102... 51 drives the lower pressure plate 52 to move downward, first pressing down the base 6 to make it initially insert into the outer shell 7. Then, the linear drive mechanism 1 21232 drives the sleeve 2123 to move downward, and the linear actuator 234 synchronously controls the upper support ring 23 to descend. The sleeve 2123 disengages from the hinged connection position of the upper shaft 2121 and the lower shaft 2122. The telescopic rod 235 pulls the upper shaft 2121 outward to rotate, causing the upper support ring 23 to avoid the downward stroke of the base 6 and avoid assembly interference caused by the support structure.

[0049] After the support structure has made clearance, the pressing assembly mechanism 5 presses down on the base 6 again, so that the base 6 and the outer shell 7 are fully pressed and inserted into place. The assembled workpiece stays directly below the circular trajectory drive module 13 and remains fixed. The detection module 404 of the circular trajectory drive module 13 mounted at the bottom of the pressing assembly mechanism 5 moves around the outer periphery of the workpiece to take pictures of the gap between the base 6 and the outer shell 7 from all directions, and completes the re-inspection of the assembly gap size.

[0050] After the entire testing and assembly process is completed, the sleeve 2123 and the upper support ring 23 are lifted and reset in sequence, the upper shaft 2121 rotates back to the initial vertical state, and the conveyor shaft 21 restarts operation to convey the finished relay to the downstream section. Example

[0051] like Figure 7 As shown, the left and right rotating avoidance shafts 212 are each equipped with a single linear drive mechanism 1 21232, a linear actuator 2 234, and a telescopic rod 235. The adjacent connecting ears 1 21233, connecting ears 2 232, and connecting ears 3 233 are fixedly connected by connecting rods.

[0052] It should be noted that in this embodiment, multiple connecting ears 1 21233, connecting ears 232 or connecting ears 3 233 are connected by connecting rods, so that multiple upper shafts 2121 can be rotated, and sleeves 2123 and upper support rings 23 can be raised and lowered by only a single actuator drive mechanism 1 and linear actuator 2 234, thereby reducing the number of drive devices and lowering costs.

[0053] The aforementioned linear actuator uses a pneumatic cylinder, hydraulic cylinder, or electric push rod.

[0054] Workflow: The relay base 6 and the outer casing 7 are fed into the rotating shaft conveyor mechanism 2 in two staggered directions. They are supported by the upper support ring 23 and the lower support ring 24 respectively and simultaneously conveyed into the inspection chamber 9. When the workpiece passes through the area of ​​the front fixed rotating shaft 211, the grating sensing module inside the inspection chamber 9 captures the workpiece's passage sequence in real time. Multiple sets of optical detection modules arranged around the workpiece simultaneously collect images of the six sides of the workpiece's appearance and the internal dimensions to complete the incoming material quality judgment. If a defect is detected, the system binds and stores the defect signal with the time sequence. When the base 6 is conveyed to the flipping component 10, the flipping component 10 drives it to flip over. Subsequently, the base 6 and the outer casing 7 are simultaneously conveyed to the middle section rotating avoidance rotating shaft 212 station. The interceptor 8 below the lower pressing assembly mechanism 5 uses the pressure sensing module to position and align the two types of workpieces and complete the process. During the initial pressing and insertion, the linear drive mechanism 1 21232 drives the sleeve 2123 to move down, and the linear actuator 234 simultaneously lowers the upper support ring 23. After the sleeve 2123 disengages from the hinge position, the telescopic rod 235 pulls the upper shaft 2121 to rotate outward to avoid the pressing stroke of the base 6. The pressing assembly mechanism 5 presses down again to achieve complete pressing of the base 6 and the outer shell 7. After assembly, the detection module 404 equipped with the ring trajectory drive module 13 surrounds the workpiece to collect images of the insertion gap and adds assembly defect marks. After all inspection processes are completed, the conveyor shaft 21 drives the finished product to the processing rear side. The sorting machine clamps and sorts the incoming defective and unqualified workpieces with assembly gaps according to the timing signal bound by the grating. Only the relay finished products that pass both inspections are discharged normally.

[0055] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. An assembly dimension detection device based on relay structure processing, characterized in that, It includes a processing table (1), a rotating shaft conveying mechanism (2), an optical inspection mechanism (4), and a pressing assembly mechanism (5); A testing chamber (9) is fixedly connected above the processing table (1); The rotating shaft conveying mechanism (2) is located on the left and right sides of the processing table (1). It consists of multiple sets of equidistant conveying shafts (21) and a rotary drive structure that drives the conveying shafts (21) to rotate at a constant speed. The conveying shafts (21) are divided into fixed rotating shafts (211) at the front and rear sections and a rotating avoidance rotating shaft (212) in the middle section along the conveying path. The conveying shafts (21) are provided with a liftable upper support ring (23) and a fixed lower support ring (24) to support the base (6) and the outer shell (7) of the relay respectively. The rotating avoidance shaft (212) includes an upper shaft (2121) and a lower shaft (2122) hinged at opposite ends, and the upper shaft (2121) and the lower shaft (2122) are fitted with a sleeve (2123) that can be raised and lowered vertically. The optical inspection mechanism (4) is arranged around the workpiece conveying trajectory; The pressing assembly mechanism (5) is installed above the rotating avoidance shaft (212); When the base (6) and the outer shell (7) are transported to the rotating avoidance shaft (212) after being inspected by the optical inspection mechanism (4), the pressing assembly mechanism (5) presses down the base (6) to make the base (6) and the outer shell (7) initially insert. Then the upper support ring (23) and the sleeve (2123) descend in sequence, causing the upper shaft (2121) to rotate and drive the upper support ring (23) to avoid the descending area of ​​the base (6). Finally, the pressing assembly mechanism (5) presses down the base (6) again to make the base (6) and the outer shell (7) completely insert. Then the optical inspection mechanism (4) inspects the insertion gap between the base (6) and the outer shell (7).

2. The assembly dimension detection device based on relay structure processing according to claim 1, characterized in that, The spacing between the conveying shafts (21) on the left and right sides is adapted to the width of the base (6) and the outer shell (7) to ensure stable conveying alignment. The base (6) and the outer shell (7) are conveyed separately. An interceptor (8) is provided below the pressing assembly mechanism (5) to intercept and align the base (6) and the outer shell (7).

3. The assembly dimension detection device based on relay structure processing according to claim 2, characterized in that, The upper shaft (2121) includes a limiting segment one (21211) with a larger diameter and a connecting segment one (21212) with a smaller diameter. The lower shaft (2122) includes a limiting segment two (21221) with a larger diameter and a connecting segment two (21222) with a smaller diameter. The limiting segment one (21211) and the limiting segment two (21221) have the same diameter, and the connecting segment one (21212) and the connecting segment two (21222) have the same diameter.

4. The assembly dimension detection device based on relay structure processing according to claim 3, characterized in that, The sleeve (2123) includes a cylinder (21231) and a linear drive mechanism (21232). The inner diameter of the cylinder (21231) is the same as the diameter of the connecting section (21212) and the connecting section (21222), and the outer diameter of the cylinder (21231) is less than or equal to the limiting section (21211) and the limiting section (21221). The linear drive mechanism (21232) is fixedly installed on the inner wall of the detection chamber (9). A connecting ear (21233) is fixedly provided on the outer side of the cylinder (21231), and the connecting ear (21233) is fixedly connected to the driving end of the linear drive mechanism (21232).

5. The assembly dimension detection device based on relay structure processing according to claim 4, characterized in that, The upper support ring (23) includes a support ring body (231) and a connecting ear three (233). A connecting ear two (232) is fixedly provided on the outer side wall of the support ring body (231). The connecting ear three (233) is rotatably connected to the upper shaft body (2121). A linear actuator two (234) is fixedly provided between the connecting ear two (232) and the connecting ear three (233). A telescopic rod (235) is hinged between the connecting ear three (233) and the connecting ear one (21233).

6. The assembly dimension detection device based on relay structure processing according to claim 5, characterized in that, The left and right rotating avoidance shafts (212) are each equipped with a single linear drive mechanism 1 (21232), a linear actuator 2 (234), and a telescopic rod (235). The adjacent connecting ears 1 (21233), connecting ears 2 (232), and connecting ears 3 (233) are fixedly connected by connecting rods.

7. The assembly dimension detection device based on relay structure processing according to claim 6, characterized in that, The optical inspection mechanism (4) includes inspection module one (401) installed on the left, right and top inner walls of the inspection chamber (9), inspection module two (402) installed on the top wall of the inspection chamber (9), inspection module three (403) installed above the processing table (1), and inspection module four (404) installed below the pressing assembly mechanism (5).

8. The assembly dimension detection device based on relay structure processing according to claim 7, characterized in that, The detection modules 1 (401), 2 (402) and 3 (403) are equipped with linear trajectory drive modules to adjust their positions. The detection module 1 (401), located on the top wall of the detection chamber (9), is also equipped with a rotation drive module to adjust the shooting angle of the detection module 1 (401). The detection module 4 (404) is equipped with a ring trajectory drive module to make the detection module 4 (404) surround the assembled base (6) and the outer shell (7) to shoot the joint gap. The detection modules 1 (401), 3 (403) and 4 (404) use industrial cameras, and the detection module 2 (402) uses a telecentric imaging optical lens.

9. An assembly dimension detection device based on relay structure processing according to claim 8, characterized in that, The pressing assembly mechanism (5) includes a linear actuator three (51) fixedly connected to the detection chamber (9). The driving end of the linear actuator three (51) is fixedly provided with a pressing plate (52). The interceptor (8) and the circular trajectory driving module are fixedly installed below the pressing plate (52), and several pressure sensing modules are vertically embedded in the side wall of the interceptor (8).

10. An assembly dimension detection device based on relay structure processing according to claim 9, characterized in that, The detection chamber (9) is provided with a flipping assembly (10) on both sides. The flipping assembly (10) includes a drive motor (101) fixedly connected to the detection chamber (9). The drive end of the drive motor (101) is fixedly provided with a linear actuator (102).

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