A fully automatic assembly device with visual inspection

Abstract

The present invention relates to the field of assembly lines, and in particular to a fully automatic assembly device with visual inspection, comprising a front-end feeding unit; a front-end assembly unit connected to the front-end feeding unit; a rear-end assembly unit arranged at the discharge end of the front-end assembly unit; a shell feeding unit arranged at the feed end of the rear-end assembly unit; a rear-end feeding unit arranged at the feed end of the rear-end assembly unit; a blanking and conveying unit arranged on the rear-end feeding unit; and a visual inspection unit arranged between the front-end assembly unit and the rear-end assembly unit and located above the blanking and conveying unit. The present invention optimizes the production path of the assembly line, divides the products into front-end assembly and rear-end assembly, and realizes the same space arrangement of the intermediate assembly product transmission and the final finished product blanking, which is convenient for reducing the number of visual inspection devices, improving the inspection efficiency of a single visual inspection device, and realizing the high integration and stable operation of the fully automatic assembly device.

Description

Technical Field

[0001] The invention relates to the field of assembly lines, in particular to a full-automatic assembly device with visual detection. Background Art

[0002] In modern industrial production, fully automatic assembly devices that are highly integrated, have multifunctional workstations, and can perform assembly production simultaneously at each workstation are widely used. If the workstations are set up reasonably and the assembly rhythm is kept consistent, the assembly speed and production efficiency of the product can be greatly improved.

[0003] However, due to the high degree of automation of fully automatic assembly equipment, unqualified products are inevitable on the assembly line. In order to achieve high assembly efficiency while ensuring product qualification rate, visual inspection devices are usually installed at each workstation of the assembly line. The current fully automatic assembly line is usually set up linearly. A single visual inspection device can only detect products in a certain assembly process. If you want to achieve full-process monitoring and quickly grasp the fault points, you need to set up multiple sets of visual inspection devices. This brings great pressure to the staff who monitor the normal operation of the assembly line in the background, and is not conducive to improving the economic benefits of the assembly line. Summary of the Invention

[0004] In view of the problem in the above or existing technologies that if you want to achieve full-process monitoring and quickly identify the fault points, you need to set up multiple sets of visual detection devices, which brings great pressure to the staff who monitor the normal operation of the assembly line in the background, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide a fully automatic assembly device with visual inspection.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a fully automatic assembly device with visual inspection, comprising a front-stage feeding unit; a front-stage assembly unit connected to the front-stage feeding unit; a rear-stage assembly unit arranged at the discharge end of the front-stage assembly unit; a shell feeding unit arranged at the feed end of the rear-stage assembly unit; a rear-stage feeding unit arranged at the feed end of the rear-stage assembly unit; a blanking conveying unit arranged on the rear-stage feeding unit; and a visual inspection unit arranged between the front-stage assembly unit and the rear-stage assembly unit and located above the blanking conveying unit. Among them, the assembly product is set as a cylinder, the front-end assembly unit is used to assemble the plunger assembly of the cylinder, the rear-end assembly unit is used to assemble complete cylinder accessories based on the plunger assembly, and the unloading and conveying unit is divided into qualified unloading lines and defective lines according to the pressing force and displacement detection data of the cylinder; the visual inspection unit includes a material conveyor belt arranged between the front-end assembly unit and the rear-end assembly unit, and a visual inspection module arranged on the material conveyor belt for inspecting the plunger parts assembled and discharged by the front-end assembly unit and the cylinder parts discharged by the rear-end assembly unit.

[0007] As a preferred solution of the fully automatic assembly device with visual inspection of the present invention, the front-end feeding unit includes a plunger loading assembly arranged on the plunger loading station of the front-end assembly unit, a gear loading assembly arranged on the gear stringing station of the front-end assembly unit, and a bearing loading assembly 1 arranged on the bearing stringing station of the front-end assembly unit.

[0008] As a preferred solution of the fully automatic assembly device with visual inspection of the present invention, wherein: the front-end assembly unit includes a front-end assembly workbench, a bearing feeding mechanism 1, a gear feeding mechanism, a plunger rod feeding mechanism, a press-fitting mechanism, a defective product unloading mechanism and a front-end unloading mechanism arranged around the front-end assembly workbench; the bearing feeding mechanism 1, the gear feeding mechanism, the plunger rod feeding mechanism, the front-end press-fitting mechanism, and the front-end unloading mechanism correspond to the front-end bearing feeding station, gear feeding station, plunger feeding station, plunger rod assembly station, defective product unloading station and front-end unloading station of the front-end assembly workbench respectively.

[0009] As a preferred solution of the fully automatic assembly device with visual inspection of the present invention, the shell feeding unit includes a shell loading and conveying mechanism arranged on the shell loading station of the rear assembly unit, a dust collection bin arranged at the loading end of the shell loading and conveying mechanism, and a dust collection mechanism arranged on the dust collection bin.

[0010] As a preferred solution of the fully automatic assembly device with visual inspection of the present invention, the rear-stage feeding unit includes an oil seal feeding mechanism arranged on the oil seal feeding station of the rear-stage assembly unit, a bearing feeding component 2 arranged on the bearing feeding station of the rear-stage assembly unit, and a locking feeding component arranged on the locking feeding station of the rear-stage assembly unit; a chip blowing mechanism is provided on the locking feeding component.

[0011] As a preferred solution of the fully automatic assembly device with visual inspection of the present invention, wherein: the rear-stage assembly unit includes a rear-stage assembly workbench, and a plunger feeding mechanism, a shell feeding mechanism, an oil seal feeding mechanism, a rear-stage press-fitting mechanism, a second bearing feeding mechanism, a lock feeding mechanism, a final assembly dust suction mechanism, and a cylinder unloading mechanism arranged around the rear-stage assembly workbench; the plunger feeding mechanism, the shell feeding mechanism, the oil seal feeding mechanism, the rear-stage press-fitting mechanism, the second bearing feeding mechanism, the lock feeding mechanism, the final assembly dust suction mechanism, and the cylinder unloading mechanism correspond respectively to the front-stage plunger feeding station, the shell feeding station, the oil seal feeding station, the cylinder assembly station, the rear-stage bearing feeding station, the lock feeding station, the dust suction station and the cylinder unloading station of the rear-stage assembly workbench.

[0012] The beneficial effects of the fully automatic assembly device with visual inspection of the present invention are: by optimizing the production line production path, the product's general assembly production line is divided into the front-end assembly unit and the back-end assembly unit, reducing the concentration of workstations caused by the high degree of automation of the fully automatic assembly device, resulting in an increase in the product defective rate and difficulty in checking the fault points; at the same time, the intermediate assembly product transmission in the assembly process, that is, the material conveyor belt between the front-end assembly unit and the back-end assembly unit, and the final finished product unloading conveyor belt, that is, the unloading conveying unit, are arranged in the same space, and a single visual sensing device is used to realize synchronous visual inspection of the intermediate product transmission and the final finished product. The visual inspection module is located on the material conveyor belt between the front-end and back-end assembly units, and can simultaneously detect the plunger assembly of the front-end discharge and the complete product of the back-end discharge. The visual inspection module is for the intermediate products and unloading on the front-end unloading mechanism between the front-end assembly unit and the back-end assembly unit. The final products on the conveying unit are inspected separately. Different from the traditional assembly line inspection method of unified inspection after assembly is completed, synchronous inspection can be achieved at the intermediate products to avoid the inability to locate the wrong assembly point of the assembly line when visual inspection of the complete assembled products. Now, if defective products are produced at the intermediate products, the system can troubleshoot the front assembly unit in advance; at the same time, through the preset assembly line timestamp and assembly cycle synchronization, the system can associate the product data of the front and back ends. If the complete product produced by the back assembly unit produces defective products, the material transportation from the front assembly unit to the back assembly unit can be stopped in time, and the back assembly unit can be quickly troubleshooted to achieve segmented fault troubleshooting and positioning of the entire assembly line, which is convenient for reducing the number of visual inspection devices, improving the inspection efficiency of a single visual inspection device, and realizing high integration and stable operation of fully automatic assembly devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the front-end assembly unit structure of the present invention.

[0016] Figure 3 It is a top view of the front section assembly unit of the present invention.

[0017] Figure 4 It is a schematic diagram of the front-end assembly unit structure of the present invention.

[0018] Figure 5 It is a schematic structural diagram of the front-end assembly workbench of the present invention.

[0019] Figure 6 It is a top view of the rear section assembly unit of the present invention.

[0020] Figure 7 This is a timing diagram of the automatic assembly of the oil cylinder of the present invention.

[0021] In the figure: 1. Front feeding unit; 11. Plunger feeding assembly; 12. Gear feeding assembly; 13. Bearing feeding assembly 1; 2. Front assembly unit; 21. Front assembly workbench; 22. Bearing feeding mechanism 1; 23. Gear feeding mechanism; 24. Plunger rod feeding mechanism; 25. Front pressing mechanism; 26. Front unloading mechanism; 3. Visual inspection unit; 31. Material conveyor belt; 32. Visual inspection module; 4. Unloading conveyor unit; 5. Shell feeding unit; 51. Shell loading conveyor Feeding mechanism; 52. Dust collection bin; 53. Dust collection mechanism; 6. Rear section feeding unit; 61. Oil seal feeding mechanism; 62. Bearing feeding assembly 2; 63. Locking feeding assembly; 631. Chip blowing mechanism; 7. Rear section assembly unit; 71. Rear section assembly workbench; 72. Plunger feeding mechanism; 73. Shell feeding mechanism; 74. Oil seal feeding mechanism; 75. Rear section pressing mechanism; 76. Bearing feeding mechanism 2; 77. Locking feeding mechanism; 78. Final assembly dust collection mechanism; 79. Cylinder unloading mechanism. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] Example 1, reference Figure 1 , which is the first embodiment of the present invention, provides a fully automatic assembly device with visual inspection, which can achieve the synchronous monitoring effect of multiple process points by a single visual inspection device. It includes a fully automatic assembly device with visual inspection, including a front-end feeding unit 1; a front-end assembly unit 2 connected to the front-end feeding unit 1; a rear-end assembly unit 7 arranged at the discharge end of the front-end assembly unit 2; a shell feeding unit 5 arranged at the feed end of the rear-end assembly unit 7; a rear-end feeding unit 6 arranged at the feed end of the rear-end assembly unit 7; a blanking conveying unit 4 arranged on the rear-end feeding unit 6; and a visual inspection unit 3 arranged between the front-end assembly unit 2 and the rear-end assembly unit 7 and located above the blanking conveying unit 4. Among them, the internal workstations of the front-end assembly unit 2 and the rear-end assembly unit 7 are connected in order according to the workflow, and the inspection range of the visual inspection unit 3 includes the discharge of the front-end assembly unit 2 and the discharge of the rear-end assembly unit 7.

[0024] Preferably, by periodically setting each working point of the fully automatic assembly device, it can be determined that the material discharged from the front-end assembly unit 2 is finally assembled and discharged from the back-end assembly unit 7 after a fixed period of time. Therefore, the detection system operation logic is set within the visual inspection unit 3 to achieve tracking inspection of a single product. The detection logic of the visual inspection unit 3, the control module of the assembly line, and the transmission of defective product information are all existing technologies and will not be described in detail in this invention.

[0025] Furthermore, the visual inspection unit 3 includes a material conveyor belt 31 disposed between the front-end assembly unit 2 and the rear-end assembly unit 7, and a visual inspection module 32 disposed on the material conveyor belt 31 for inspecting the plunger components discharged from the front-end assembly unit 2 and the cylinder components discharged from the rear-end assembly unit. The unloading conveyor unit 4 is divided into a qualified unloading line and a defective line based on the monitoring data of the cylinder's pressing force and displacement.

[0026] Among them, since the overall assembly line is allocated to the front-end assembly unit 2 and the back-end assembly unit 7, when the real-time detection system of the visual inspection unit 3 detects the appearance of defective products, the visual inspection unit 3 immediately feeds back to the central control module of the assembly line. The visual inspection module 32 is located on the front-end unloading conveyor belt between the front-end assembly unit 2 and the back-end assembly unit 7. The visual inspection module 32 can simultaneously detect the plunger assembly discharged from the front section and the complete product discharged from the back section. The visual inspection module 32 respectively detects the intermediate products on the material conveyor belt between the front-end assembly unit 2 and the back-end assembly unit 7 and the final products on the unloading conveyor unit. Different from the traditional assembly line detection method of uniformly performing detection after assembly is completed, it can realize synchronous detection at the intermediate products to avoid When visually inspecting a complete assembled product, it is impossible to locate the incorrect assembly point of the assembly line. Now, if defective products are produced in the intermediate products, the system can troubleshoot the front-end assembly unit 2 in advance; at the same time, through the preset assembly line timestamp and assembly cycle synchronization, the system can associate the product data of the front and back ends. If the complete product produced by the back-end assembly unit 7 produces defective products, the material transportation from the front-end assembly unit 2 to the back-end assembly unit 7 can be stopped in time to reduce the continuous occurrence of defective products, and the back-end assembly unit can be quickly troubleshooted to achieve segmented troubleshooting and positioning of the entire assembly line, effectively improving the troubleshooting efficiency of the assembly line, and more practical value than the traditional single visual inspection of complete products that produces defective points.

[0027] Furthermore, the overall assembly device is provided with a protective frame and an inspection door, and status display lights are provided on the front assembly unit 2 and the rear assembly unit 7. In order to facilitate the staff to debug the assembly line, each set of independent operating mechanisms is provided with an operation display screen and control buttons.

[0028] During use, according to the specific assembly process and structure of the product to be assembled, the product is divided into the front-end preliminary assembly, that is, the front-end assembly unit 2, and the back-end overall assembly, that is, the back-end assembly unit 7, to avoid the high integration of the assembly line leading to an increase in the defective rate, and reduce the problem of the high automation of the fully automatic assembly device leading to the concentration of workstations, the increase in the product defective rate and the difficulty in checking the fault points. The visual inspection module 32 respectively inspects the intermediate products on the material conveyor belt between the front-end assembly unit 2 and the back-end assembly unit 7, and the final products on the unloading conveying unit. Different from the traditional assembly line inspection method of uniformly inspecting after the assembly is completed, it can realize synchronous inspection at the intermediate products, avoiding When visually inspecting the complete assembled products, it is impossible to locate the incorrect assembly points of the production line. Now, if defective products are produced in the intermediate products, the system can troubleshoot the front-end assembly unit in advance; the final assembly unloading conveyor belt of the rear-end assembly unit 7 is synchronously set within the material transmission range of the front-end assembly unit 2 and the rear-end assembly unit 7, and the intermediate assembly product transmission and the final finished product unloading transmission during the assembly process are set in the same space, and a single visual sensing device is used to realize synchronous visual inspection of the intermediate product transmission and the final finished product, which is convenient for reducing the number of visual inspection devices, improving the inspection efficiency of a single visual inspection device, and realizing high integration and stable operation of the fully automatic assembly device.

[0029] Example 2, reference Figures 1 to 6 This is the second embodiment of the present invention. Based on the previous embodiment, the assembled product in this embodiment is a hydraulic cylinder. The assembly of the hydraulic cylinder is completed in two devices. The front assembly unit 2 is used to assemble the plunger assembly. The front section is the assembly of the shaft, gears, and bearings. The rear assembly unit is used to assemble the complete hydraulic cylinder accessories, including the hydraulic cylinder, oil seal, shaft assembly, bearings, and swash plate.

[0030] Furthermore, the front-end feeding unit 1 includes a plunger loading assembly 11 arranged on the plunger loading station of the front-end assembly unit 2, a gear loading assembly 12 arranged on the gear stringing station of the front-end assembly unit 2, and a bearing loading assembly 13 arranged on the bearing stringing station of the front-end assembly unit 2.

[0031] Furthermore, the front-end assembly unit 2 includes a front-end assembly workbench 21, a bearing feeding mechanism 22, a gear feeding mechanism 23, a plunger rod feeding mechanism 24, a front-end press-fitting mechanism 25, a defective product unloading mechanism and a front-end unloading mechanism 26 arranged around the front-end assembly workbench 21; the bearing feeding mechanism 22, the gear feeding mechanism 23, the plunger rod feeding mechanism 24, the front-end press-fitting mechanism 25, and the front-end unloading mechanism 26 correspond to the front-end bearing feeding station, gear feeding station, plunger feeding station, plunger rod assembly station, defective product unloading station and front-end unloading station of the front-end assembly workbench 21 respectively.

[0032] The specific assembly process is as follows: the plunger rod feeding mechanism 24 is used to load the plunger tray, and the double-station tray is docked on the front-end assembly workbench 21; the gear feeding mechanism 23 is used to load the gear string, and the string is hung and the tray is placed manually; the bearing feeding mechanism 22 is used to load the bearing string, and the string is hung and the tray is placed manually; the front-end feeding unit 1 is provided with a protective safety frame to achieve early warning of material shortage; each station of the front-end assembly unit 2 is provided with a material grabbing mechanism to facilitate the transplanting and loading of each assembly component, and at the same time, the components are placed on the assembly carrier of the front-end assembly workbench 21, and the fed bearings are sent to the grabbing position, and then The feeding gear is grabbed above the feeding bearing, and then the shaft is grabbed and inserted into the carrier, and the two workstations are carried out simultaneously; the front-end pressing mechanism 25 grabs the material tray plunger, presses it in together with the gear bearing, and makes a height hard limit to ensure the product size; after assembly is completed, the visual inspection module 32 performs visual inspection on the intermediate products on the material conveyor belt between the front-end assembly unit 2 and the rear-end assembly unit 7. If defective products are produced in the intermediate products, the system can troubleshoot the front-end assembly unit 2 in advance, and the material grabbing mechanism unloads the defective products to discharge the defective products from the assembly line. The material grabbing mechanism grabs the qualified products to the unloading line and guides them to the rear-end assembly unit 7 for the next step of final assembly.

[0033] Furthermore, during the assembly process, the loading position of each workstation is re-positioned by the fixture; the gear loading is docked with the positioning groove on the bearing; the shaft loading is docked with the pre-assembly position; the shaft is grabbed and moved to the pressing point, and the front-stage pressing mechanism 25 presses the bottom of the fixture for jacking support and precise positioning to ensure that the pressing force is on the pressing bracket, not on the front-stage assembly workbench 21; the front-stage assembly workbench 21 is driven by the divider to perform six-station press-fitting rotation, and a detection position is synchronously set on the front-stage assembly workbench 21 to detect the current status of the product in real time.

[0034] Furthermore, the shell feeding unit 5 includes a shell feeding conveyor mechanism 51 provided at the shell feeding station of the rear assembly unit 7, a dust collection bin 52 provided at the feeding end of the shell feeding conveyor mechanism 51, and a dust collection mechanism 53 provided on the dust collection bin 52. The dust collection mechanism 53 is provided to prevent dust electrostatically adsorbed on the shell material during the assembly process from entering the interior of the oil cylinder and affecting the sealing of the product.

[0035] Furthermore, the rear-stage feeding unit 6 includes an oil seal feeding mechanism 61 arranged on the oil seal feeding station of the rear-stage assembly unit 7, a bearing feeding component 2 62 arranged on the bearing feeding station of the rear-stage assembly unit 7, and a locking feeding component 63 arranged on the locking feeding station of the rear-stage assembly unit 7; a chip blowing mechanism 631 is provided on the locking feeding component 63.

[0036] Furthermore, the rear-section assembly unit 7 includes a rear-section assembly workbench 71, and a plunger feeding mechanism 72, a shell feeding mechanism 73, an oil seal feeding mechanism 74, a rear-section press-fitting mechanism 75, a bearing feeding mechanism 2 76, a lock feeding mechanism 77, a final assembly dust suction mechanism 78, and a cylinder unloading mechanism 79 arranged around the rear-section assembly workbench 71; the plunger feeding mechanism 72, the shell feeding mechanism 73, the oil seal feeding mechanism 74, the rear-section press-fitting mechanism 75, the bearing feeding mechanism 2 76, the lock feeding mechanism 77, the final assembly dust suction mechanism 78, and the cylinder unloading mechanism 79 respectively correspond to the front-section plunger feeding station, shell feeding station, oil seal feeding station, cylinder assembly station, rear-section bearing feeding station, lock feeding station, dust suction station and cylinder unloading station of the rear-section assembly workbench 71.

[0037] The specific assembly process is as follows: the rear-stage feeding unit 6 directly connects to the plunger rack assembly of the front-stage assembly unit 2 for assembly, and directly loads the intermediate product of the plunger rod assembly produced by the front-stage assembly unit 2 into the carrier; it is manually placed on the conveyor line with positioning tooling, and the material grabbing mechanism realizes the assembly of the cylinder housing and the plunger assembly; the oil seal loading mechanism 61 loads the oil seal, grabs the oil seal and presses it into the cylinder housing, and is equipped with a laser displacement detection at the oil seal feeding position to detect the front and back of the oil seal, and after the assembly is completed, it is checked that the assembly is in place; the rear-stage pressing mechanism 75 performs pressing, so that the carrier is subjected to force on the pressing frame to complete the bearing pressing; the bearing loading assembly 2 62 loads the bearing and feeds it to the lower part of the rear-stage pressing mechanism 75 At this time, the material grabbing mechanism further grabs the bearing to the lower part of the press-fitting fixed head and adsorbs it on the press-fitting tool of the rear-stage press-fitting mechanism 75. At this time, the swash plate vibration plate of the lock-fitting feeding mechanism 77 feeds the lock-fitting and feeds the material to the upper part of the shaft for assembly. The swash plate material inlet channel is equipped with a blowing and dust suction device. The lock-fitting feeding mechanism 77 automatically feeds the lock-fitting, locks the swash plate and the shaft together, and monitors the torque during the entire process. Finally, the assembly is completed on the rear-stage assembly workbench 71, and the final assembly dust suction mechanism 78 is used to adsorb the waste dust in the plunger cavity. After the assembly is completed, the qualified status of the product is detected according to the press-fitting force and displacement, and the visual inspection of the visual inspection module 32 is combined to put the assembled products into different material channels. By synchronizing the preset pipeline timestamp with the assembly cycle, the system can associate the product data of the front and back ends. If the complete product produced by the back assembly unit 7 produces defective products, the material transportation from the front assembly unit 2 to the back assembly unit 7 can be stopped in time to reduce the continuous occurrence of defective products, and the internal fault detection of the back assembly unit can be quickly carried out to achieve segmented fault detection and positioning of the entire pipeline, effectively improving the fault detection efficiency of the assembly line. Compared with the traditional single visual inspection of complete products that produces defective products, it has more practical value to detect the fault points after the defective products are detected.

[0038] like Figure 7As shown, the cylinder parts known in the prior art include small bearings, gears, gear shafts, gear bearings, cylinder housings, oil seals, large bearings, swash plates and screw locks. In the above workflow, the timestamps of the specific assembly lines are as follows: the loading of a single small bearing part for the assembly of the plunger assembly in the front-end assembly unit 2 takes 4 seconds, and the cache time is 40 minutes; the loading of a single gear part takes 6 seconds, and the cache time is 30 minutes; the loading of a single gear shaft part takes 5.5 seconds, and the cache time is 30 minutes; the pressing time of a single gear shaft is 5 seconds, and the unloading of the finished plunger rod takes 4 seconds; in the rear-end assembly unit 7, the gear bearing press-fitting turntable takes 2 seconds, the loading of a single gear shaft assembly part takes 4 seconds, and the cylinder housing Loading and assembly takes 5 seconds, with a buffer time of 12 minutes; loading and assembly of the oil seal takes 5 seconds, with a buffer time of 40 minutes; loading and press-fitting a single large bearing component takes 6 seconds, with a buffer time of 30 minutes; loading and assembling a single swash plate component takes 5 seconds, with a buffer time of 30 minutes; assembling the screw locking mechanism takes 4.5 seconds, with a buffer time of 30 minutes; the dust collection device operates for 3 seconds, and the finished cylinder is discharged from the rear assembly unit 7 in 4 seconds, with a buffer time of 12 minutes; and the final turntable assembly takes 2 seconds. Each of these steps is carried out simultaneously, and the normal assembly time for a single cylinder is 6 seconds.

[0039] Furthermore, the rear assembly workbench 71 is surrounded by a feeding and transplanting mechanism, a feeding, pushing, and discharging mechanism, a rotating platform for loading and unloading, and a discharging and receiving buffer mechanism. The discharging and receiving buffer mechanism can cooperate with the visual inspection unit 3 to perform material inspection. The rear assembly workbench 71 is equipped with 12 groups of rotating silos for workstations to meet the buffer requirements within a certain period of time. The rear assembly unit 7 unloads the material and docks it with the unloading conveyor line. The material is fed to the edge of the upper loading position and docked with the shaft assembly loading of the previous process. The cylinder housing is manually removed from the material frame. The housing feeding unit 5 is equipped with a chip blowing and dust collection device. The loading is protected by a safety frame, and there is an early warning of material shortage.

[0040] The rest of the structure is the same as that of Example 1.

[0041] Preferably, the overall fully automatic assembly device can meet the requirements of 120 oil cylinder parts without interfering with the buffering and unloading. If the buffering capacity needs to be increased, the line length can be increased. By periodically setting each working point of the fully automatic assembly device, it can be concluded that the discharge of the front assembly unit 2 will be discharged from the rear assembly unit 7 after a fixed time after the final assembly. Therefore, the detection system operation logic is set inside the visual inspection unit 3 to achieve tracking detection of a single product. When defective products appear, it is convenient to trace the source in time, determine the assembly fault station, and realize the refined management of the fully automatic production line. Figure 7As shown in the timing diagram of the automatic assembly of the cylinder, it can be clearly seen that the working time cycle of each assembly station in this embodiment is combined with the detection logic of the visual inspection unit 3 and the overall fully automatic assembly process, thereby achieving a significant improvement in the detection efficiency of the single visual inspection unit 3, which facilitates traceability inspection of the product.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fully automatic assembly device with visual inspection, characterized in that: include, A front section feeding unit (1); a front section assembly unit (2) connected to the front section feeding unit (1); a rear section assembly unit (7) arranged at the discharge end of the front section assembly unit (2); a shell feeding unit (5) arranged at the feed end of the rear section assembly unit (7); a rear section feeding unit (6) arranged at the feed end of the rear section assembly unit (7); a blanking conveying unit (4) arranged on the rear section feeding unit (6); and a visual inspection unit (3) arranged between the front section assembly unit (2) and the rear section assembly unit (7) and located above the blanking conveying unit (4); The assembly product is set as a cylinder, the front assembly unit (2) is used to assemble the plunger assembly of the cylinder, the rear assembly unit is used to assemble the complete cylinder accessories based on the plunger assembly, and the unloading and conveying unit (4) is divided into a qualified unloading line and a defective line according to the pressing force and displacement detection data of the cylinder; A visual inspection unit (3) comprising a material conveyor belt (31) disposed between the front-end assembly unit (2) and the rear-end assembly unit (7), and a visual inspection module (32) disposed on the material conveyor belt (31) for inspecting the plunger component, i.e., the intermediate product, assembled and discharged from the front-end assembly unit (2) and the cylinder component, i.e., the complete assembled product, discharged from the rear-end assembly unit; A front-end feeding unit (1) comprises a plunger feeding assembly (11) arranged on a plunger feeding station of a front-end assembly unit (2), a gear feeding assembly (12) arranged on a gear stringing station of the front-end assembly unit (2), and a bearing feeding assembly (13) arranged on a bearing stringing station of the front-end assembly unit (2); The rear section feeding unit (6) comprises an oil seal feeding mechanism (61) provided on the oil seal feeding station of the rear section assembly unit (7), a bearing feeding assembly (62) provided on the bearing feeding station of the rear section assembly unit (7), and a locking feeding assembly (63) provided on the locking feeding station of the rear section assembly unit (7); a chip blowing mechanism (631) is provided on the locking feeding assembly (63); The rear section assembly unit (7) comprises a rear section assembly workbench (71), and a plunger feeding mechanism (72), a shell feeding mechanism (73), an oil seal feeding mechanism (74), a rear section press-fitting mechanism (75), a second bearing feeding mechanism (76), a locking feeding mechanism (77), a final assembly dust collection mechanism (78), and a cylinder unloading mechanism (79) arranged around the rear section assembly workbench (71); the plunger feeding mechanism (72), the shell feeding mechanism (73), the oil seal feeding mechanism (74), the rear section press-fitting mechanism (75), the second bearing feeding mechanism (76), the locking feeding mechanism (77), the final assembly dust collection mechanism (78), and the cylinder unloading mechanism (79) respectively correspond to the front section plunger feeding station, the shell feeding station, the oil seal feeding station, the cylinder assembly station, the rear section bearing feeding station, the locking feeding station, the dust collection station, and the cylinder unloading station of the rear section assembly workbench (71); The specific assembly process is as follows: the rear feeding unit (6) directly connects to the plunger frame assembly of the front assembly unit (2) and directly loads the intermediate product of the plunger rod assembly produced by the front assembly unit (2) into the carrier; the materials are manually placed on the conveyor line with positioning tooling, and the material grabbing mechanism realizes the assembly of the cylinder housing and the plunger assembly; the oil seal feeding mechanism (61) loads the oil seal, grabs the oil seal and presses it into the cylinder housing, and the oil seal feeding position is equipped with a laser displacement detection to detect the front and back of the oil seal, and after the assembly is completed, the assembly is checked to be in place; the rear pressing mechanism (75) positions the carrier so that the carrier is subjected to force on the pressing frame to complete the bearing pressing; the bearing feeding assembly 2 (62) The bearing is loaded and fed to the lower part of the rear-stage pressing mechanism (75). At this time, the material grabbing mechanism further grabs the bearing to the lower part of the pressing fixed head and adsorbs it on the pressing device of the rear-stage pressing mechanism (75). At this time, the swash plate vibration plate of the locking feeding mechanism (77) loads the locking, and feeds the material to the upper part of the shaft for assembly; the locking feeding mechanism (77) automatically feeds the locking, locks the swash plate and the shaft together, and monitors the torque during the entire process; finally, the assembly is completed on the rear-stage assembly workbench (71); after the assembly is completed, the qualified status of the product is detected according to the pressing force and displacement, and the visual inspection of the visual inspection module (32) is combined to put the assembled products into different material channels.

2. The fully automatic assembly device with visual inspection according to claim 1, characterized in that: The front section assembly unit (2) comprises a front section assembly workbench (21), a bearing feeding mechanism (22), a gear feeding mechanism (23), a plunger rod feeding mechanism (24), a press-fitting mechanism (25), a defective product unloading mechanism and a front section unloading mechanism (26) arranged around the front section assembly workbench (21); the bearing feeding mechanism (22), the gear feeding mechanism (23), the plunger rod feeding mechanism (24), the front section press-fitting mechanism (25), and the front section unloading mechanism (26) respectively correspond to the front section bearing feeding station, the gear feeding station, the plunger feeding station, the plunger rod assembly station, the defective product unloading station and the front section unloading station of the front section assembly workbench (21).

3. The fully automatic assembly device with visual inspection according to claim 2, characterized in that: The shell feeding unit (5) comprises a shell feeding conveying mechanism (51) arranged on the shell feeding station of the rear section assembly unit (7), a dust collection bin (52) arranged at the feeding end of the shell feeding conveying mechanism (51), and a dust collection mechanism (53) arranged on the dust collection bin (52).

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