Smoke detector intelligent assembly production line

Abstract

The present invention belongs to the field of automated assembly production technology. Disclosed is an intelligent assembly production line for smoke detectors, including a frame and a supporting trolley, on which a circular loop track is arranged; multiple groups of supporting trolleys are supported on the loop track, and a positioning seat is provided on the supporting trolley; a middle frame loading device, a PCBA board separation device, a maze base loading device, a maze cover loading device, a light guide column loading device, an upper cover loading device, a detection device and a finished product unloading device are arranged in sequence along the circumference of the loop track, and a control cabinet is provided on the upper part or side of the frame; a grabbing manipulator corresponding to each component is also provided on the frame to grab and assemble each component in sequence. The structural layout of the present application is reasonable, which can effectively reduce the occupied site space area, improve space utilization, realize the automated assembly of smoke detectors, reduce production costs and improve work efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of automated assembly production, and in particular relates to an intelligent assembly production line for smoke detectors. Background Art

[0002] A smoke detector primarily consists of a central frame, PCBA, maze base, maze cover, light guide, and top cover, all stacked and snapped together from bottom to top. The light guide is vertically inserted into the maze base and cover, effectively connecting to the PCBA. The assembly of these multiple components requires precise alignment and structural stability through a pressing action. Traditional manual assembly lines often result in high production costs, low efficiency, and inconsistent quality. This is because irregular operator operation and varying efficiency levels prevent the entire production line from achieving consistent and efficient operation.

[0003] Although there are some semi-automated or fully automated production lines in other fields, they cannot be directly applied to the production of smoke detectors. On the one hand, the unreasonable design leads to many problems in the production process, such as the irregular arrangement of parts, which easily causes hanging, and the parts are easily misplaced during grasping, making it impossible to effectively locate and assemble them; on the other hand, the spatial layout occupies a large area and the equipment layout is difficult; in addition, since the assembly methods between different components vary greatly during the entire assembly process, it is difficult to effectively design the equipment in the existing technology for the alignment assembly of different parts. Summary of the Invention

[0004] The purpose of the present invention is to address the above-mentioned problems and shortcomings and provide an intelligent assembly production line for smoke detectors, which has a reasonable structural layout, can effectively reduce the occupied site space area, improve space utilization, realize the automated assembly of smoke detectors, reduce production costs and improve operating efficiency.

[0005] In order to achieve the above purpose, the technical solutions adopted are:

[0006] A smoke detector intelligent assembly production line includes a frame and a supporting trolley. A circular loop track is arranged on the frame. Multiple groups of supporting trolleys are supported on the loop track. Positioning seats are provided on the supporting trolleys. A middle frame loading device, a PCBA board separation device, a maze base loading device, a maze cover loading device, a light guide column loading device, an upper cover loading device, a detection device, and a finished product unloading device are arranged in sequence along the circumference of the loop track. A control cabinet is provided on the upper part or side of the frame.

[0007] A middle frame grabbing manipulator is provided on the frame corresponding to the middle frame loading device, and the middle frame grabbing manipulator is used to grab the middle frame delivered by the middle frame loading device and place it on the positioning seat of the supporting trolley;

[0008] A PCBA board grabbing manipulator and a middle frame auxiliary detection device are provided on the frame corresponding to the PCBA board depaneling device. The middle frame auxiliary detection device is used to detect and identify the position of the middle frame on the supporting trolley that has been positioned. The PCBA board grabbing manipulator is used to grab the PCBA board delivered by the PCBA board depaneling device and assemble it on the middle frame on the corresponding supporting trolley.

[0009] A maze base grabbing manipulator and a PCBA board auxiliary detection device are provided on the frame corresponding to the maze base loading device. The PCBA board auxiliary detection device is used to detect and identify the position of the PCBA board on the supporting trolley that is in place. The maze base grabbing manipulator is used to grab the maze base delivered by the maze base loading device and assemble it on the upper part of the PCBA board.

[0010] A maze cover grabbing manipulator and a maze base auxiliary detection device are provided on the frame corresponding to the maze cover feeding device. The maze base auxiliary detection device is used to detect and identify the position of the maze base on the supporting trolley that is in place. The maze cover grabbing manipulator is used to grab the maze cover delivered by the maze cover feeding device and assemble it on the upper part of the maze base.

[0011] A light guide column grabbing robot is provided on the frame corresponding to the light guide column loading device, and the light guide column grabbing robot is used to grab the light guide column delivered by the light guide column loading device and assemble it into the maze cover and maze base on the corresponding supporting trolley;

[0012] An upper cover grabbing robot is provided on the frame corresponding to the upper cover feeding device. The upper cover grabbing robot is used to grab the upper cover delivered by the upper cover feeding device and place it on the upper part of the maze cover on the corresponding supporting trolley. An upper cover assembling device is also provided on the frame behind the upper cover grabbing robot. The upper cover assembling device is used to press and buckle the upper cover onto the middle frame.

[0013] The detection device is used to perform performance testing on the assembled smoke detector;

[0014] A finished product grabbing robot is provided on the frame corresponding to the finished product unloading device. The finished product grabbing robot grabs the smoke detector assembled on the corresponding supporting trolley and places it on the finished product unloading device.

[0015] According to the intelligent assembly production line of smoke detectors of the present invention, preferably, a first assembly lifting platform corresponding to the maze base grasping robot and a second assembly lifting platform corresponding to the maze cover grasping robot are also provided on the frame, and the first assembly lifting platform and the second assembly lifting platform are both arranged at the lower part of the supporting trolley of the corresponding assembly station.

[0016] According to the intelligent assembly production line of smoke detectors of the present invention, preferably, the first assembly lifting platform and the second assembly lifting platform are both cylinders fixedly arranged on the frame; during assembly, the output end of the cylinder extends out and fits and supports the lower part of the positioning seat of the support trolley of the corresponding assembly station.

[0017] According to the intelligent assembly production line of smoke detectors of the present invention, preferably, the upper cover assembly device includes a supporting vertical plate arranged on the frame, a lower assembly cylinder arranged at the bottom of the supporting vertical plate and an upper assembly cylinder arranged at the top of the supporting vertical plate, the action end of the upper assembly cylinder is provided with a pressing head matching the upper cover, the action end of the lower assembly cylinder is provided with a base, a plurality of sliding guide rods are evenly distributed on the base in a circular shape, the lower part of the sliding guide rod is provided with a compression spring arranged between the bases, the base is also provided with a press-in-place detection sensor corresponding to each sliding guide rod, and the upper end of the sliding guide rod is provided with an upper supporting end head that fits the top support of the middle frame.

[0018] According to the intelligent assembly production line of smoke detectors of the present invention, preferably, the base includes an upper horizontal plate and a lower horizontal plate arranged in parallel with each other, the lower horizontal plate is fixedly connected to the lower assembly cylinder, a connecting column is provided between the upper horizontal plate and the lower horizontal plate, the sliding guide rod is matched and slidably passed through the upper horizontal plate, a compression spring is provided between the lower end of the sliding guide rod and the lower horizontal plate, a sensor mounting platform is provided on the lower side of the upper horizontal plate, the press-in-place detection sensors are all arranged on the sensor mounting platform, and a groove corresponding to the press-in-place detection sensor is provided on the sliding guide rod.

[0019] According to the intelligent assembly production line of smoke detectors of the present invention, preferably, the middle frame loading device, the maze base loading device, the maze cover loading device and the upper cover loading device all include a hopper, a first vibrating disk and a first belt conveyor connected to the discharge end of the vibrating disk, guide side plates are provided on both sides of the first belt conveyor, and a scraper loader is provided between the hopper and the first vibrating disk.

[0020] According to the intelligent assembly production line for smoke detectors of the present invention, preferably, the discharge end of the first belt conveyor is provided with an anti-hanging unit, and the anti-hanging unit is used to prevent two adjacent components on the first belt conveyor from hanging together.

[0021] According to the intelligent assembly production line of smoke detectors of the present invention, preferably, the anti-hanging unit includes a stop plate, an upper cover plate and a side support block, the stop plate is arranged at the end of the first belt conveyor, the upper cover plate is arranged on the upper part of the first belt conveyor, and a limiting channel is formed between the upper cover plate and the conveyor belt of the first belt conveyor to prevent the parts from tilting up, the side support block is arranged on the guide side plate, and the guide side plate is provided with a telescopic power push rod for driving the side support block to move.

[0022] According to the intelligent assembly production line of smoke detectors of the present invention, preferably, the light guide column loading device includes a second vibrating plate, a second belt conveyor and a light guide column positioning mechanism, the light guide column positioning mechanism includes a positioning bracket, a transverse frame arranged on the positioning bracket, a turntable rotatably arranged on the transverse frame, a clamping power push rod arranged on the turntable and a clamping head arranged at the action end of the clamping power push rod, and the PCBA board separating device includes a board separator and a third belt conveyor.

[0023] According to the intelligent assembly production line of smoke detectors of the present invention, preferably, the detection device includes a detection bracket, an upper detection cylinder arranged on the top of the detection bracket, an upper detection plate fixedly arranged at the action end of the upper detection cylinder, a plurality of upper detection heads fixedly arranged on the detection plate, a lower detection cylinder arranged on the detection bracket, a lower detection plate fixedly arranged at the action end of the lower detection cylinder, and a plurality of lower detection heads fixedly arranged on the lower detection plate. The plurality of detection heads can realize the finished product detection of a plurality of smoke detectors at a time;

[0024] The finished product unloading device includes a fourth belt conveyor and a fifth belt conveyor arranged side by side. The fourth belt conveyor is used to convey qualified products grasped by the finished product grasping robot, and the fifth belt conveyor is used to convey unqualified products grasped by the finished product grasping robot.

[0025] The beneficial effects achieved by adopting the above technical solution are:

[0026] The present application, through the setting of a circular line track, can arrange and arrange the various devices in an orderly manner along the circular line track, rationally plan the space of each device, and help improve space utilization. The support trolley of the present application serves as an assembly work platform, and realizes the assembly, detection and unloading of different parts in a circumferential movement process. The present application uses the first assembly lifting platform, the second assembly lifting platform and the upper cover assembly device to enable the corresponding structural parts to maintain the structural stability of the support trolley when pressed for assembly, thereby avoiding the parts from being separated from the support trolley or being assembled incompletely due to uneven force; the middle frame loading device, the maze base loading device, the maze cover loading device and the upper cover loading device of the present application adopt a vibration plate loading device, which can ensure the orderly arrangement of the various parts, and cooperate with the anti-hanging unit to ensure that the corresponding grasping manipulator can effectively grasp the parts, improve the qualified rate of assembly, and avoid the occurrence of grasping misalignment and inability to assemble. The present application can also simultaneously perform batch detection on multiple assembled smoke detectors through the detection device, so as to distinguish qualified and unqualified products in the subsequent finished product unloading and ensure production quality.

[0027] This application has carried out targeted structural design based on the assembly characteristics of the various components of the smoke detector, so that its positioning is accurate, the assembly qualification rate is high, and the overall operation is smooth. This application has achieved automated control and action from the transportation, grasping and assembly of components, with a high degree of intelligence, which can effectively improve production efficiency, reduce production costs, and realize automated and continuous production operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. The drawings are only used to illustrate some embodiments of the present invention, but not to limit all embodiments of the present invention thereto.

[0029] Figure 1 This is a schematic diagram of the overall layout of the intelligent assembly production line for smoke detectors according to an embodiment of the present invention.

[0030] Figure 2 This is a top-down structural diagram of the intelligent assembly production line for smoke detectors according to an embodiment of the present invention, which shows the relative positions of the middle frame loading device, PCBA board separation device, maze base loading device, maze cover loading device, light guide column loading device, upper cover loading device, detection device and finished product unloading device.

[0031] Figure 3 Schematic diagram of the structure of the middle frame loading device and the middle frame grabbing robot according to an embodiment of the present invention.

[0032] Figure 4 It is a structural schematic diagram of the maze base loading device, the maze base grasping robot, the maze cover loading device and the maze cover grasping robot in an embodiment of the present invention.

[0033] Figure 5 It is a structural schematic diagram of the upper cover feeding device and the upper cover grasping robot according to an embodiment of the present invention.

[0034] Figure 6 This is a schematic structural diagram of a finished product unloading device and a finished product grabbing robot according to an embodiment of the present invention.

[0035] Figure 7 Schematic diagram of the structure of a detection device according to an embodiment of the present invention.

[0036] Figure 8 It is a structural schematic diagram of a marking device and a marking detection device according to an embodiment of the present invention.

[0037] Figure 9 Schematic diagram of the structure of the anti-hang-up unit according to an embodiment of the present invention.

[0038] Figure 10 Schematic diagram of the structure of the upper cover assembly device according to an embodiment of the present invention.

[0039] Figure 11 for Figure 10 Schematic diagram of the structure in the AA direction.

[0040] Figure 12 Schematic diagram of the structure of the light guide positioning mechanism according to an embodiment of the present invention.

[0041] Figure 13 This is one of the explosion structure diagrams of the smoke detector according to an embodiment of the present invention.

[0042] Figure 14 This is the second schematic diagram of the explosion structure of the smoke detector according to an embodiment of the present invention.

[0043] Serial number in the picture:

[0044] 100 is a frame, 110 is a circulating line track, 120 is a supporting trolley, and 121 is a positioning seat;

[0045] 210 is the middle frame loading device, 220 is the PCBA board separation device, 230 is the maze base loading device, 240 is the maze cover loading device, 250 is the light guide column loading device, 260 is the upper cover loading device, 270 is the detection device, 271 is the detection bracket, 272 is the upper detection cylinder, 273 is the upper detection plate, 274 is the upper detection head, 275 is the lower detection cylinder, 276 is the lower detection plate, 277 is the lower detection head, 280 is the finished product unloading device, and 290 is the control cabinet;

[0046] 310 is the middle frame grabbing robot, 320 is the PCBA board grabbing robot, 330 is the maze base grabbing robot, 340 is the maze cover grabbing robot, 350 is the light guide column grabbing robot, 360 is the upper cover grabbing robot, 370 is the finished product grabbing robot, 380 is the marking device, and 390 is the marking detection device;

[0047] 410 is the middle frame auxiliary detection device, 420 is the PCBA board auxiliary detection device, and 430 is the maze base auxiliary detection device;

[0048] 510 is the first assembly lifting platform, 520 is the second assembly lifting platform, 530 is the upper cover assembly device, 531 is the supporting vertical plate, 533 is the upper assembly cylinder, 534 is the lower assembly cylinder, 535 is the pressing head, 536 is the sliding guide rod, 537 is the press-in-place detection sensor, 538 is the compression spring, 539 is the upper horizontal plate, 540 is the lower horizontal plate, 541 is the sensor mounting platform, 542 is the groove, 543 is the connecting column, 544 is the upper support end, 545 is the adjusting screw, and 546 is the mounting slot;

[0049] 611 is the silo, 612 is the first vibrating plate, 613 is the first belt conveyor, 614 is the guide side plate, 615 is the scraper loader, 621 is the second vibrating plate, 622 is the second belt conveyor, 623 is the positioning bracket, 624 is the transverse frame, 625 is the turntable, 626 is the clamping power push rod, 627 is the clamping head, 631 is the plate separator, 632 is the third belt conveyor, 641 is the fourth belt conveyor, and 642 is the fifth belt conveyor;

[0050] 701 is the stop plate, 702 is the upper cover plate, 703 is the side support block, and 704 is the telescopic power push rod;

[0051] 801 is the top cover, 802 is the maze cover, 803 is the maze base, 804 is the light guide column, 805 is the PCBA board, and 806 is the middle frame. DETAILED DESCRIPTION

[0052] The following will be combined with the accompanying drawings of specific embodiments of the present invention to clearly and completely describe the exemplary embodiments of the present invention. Unless otherwise defined, technical or scientific terms used in the present invention should be given the common meanings understood by people with ordinary skills in the relevant field.

[0053] In the description of the present invention, it should be understood that the expressions “first” and “second” are used to describe the various elements of the present invention and do not represent any limitation on order, quantity or importance, but are only used to distinguish one component from another.

[0054] It should be noted that when one element is expressed as “connected”, “coupled” or “connected” to another element, it may mean that they are directly connected, coupled or connected, but it should be understood that there may be intermediate elements between the two; that is, the positional relationship of direct connection and indirect connection is covered.

[0055] It should be noted that the use of "a" or "an" and similar words does not necessarily indicate a limitation of quantity. "Include" or "comprising" and similar words mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects.

[0056] It should be noted that terms such as "up", "down", "left" and "right" that indicate orientation or positional relationships are only used to indicate relative positional relationships. This is for the convenience of describing the present invention, and does not mean that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0057] See also Figures 1-12 The present application discloses an intelligent assembly production line for smoke detectors, including a frame 100 and a supporting trolley 120, on which a circular line track 110 is arranged; a plurality of groups of supporting trolleys 120 are supported on the circular line track 110 for walking, and a positioning seat 121 is provided on the supporting trolley 120; a middle frame loading device 210, a PCBA board separation device 220, a maze base loading device 230, a maze cover loading device 240, a light guide column loading device 250, an upper cover loading device 260, a detection device 270 and a finished product unloading device 280 are arranged in sequence along the circumference of the circular line track 110, and a control cabinet 290 is provided on the upper part or side of the frame 100. In this embodiment, the top of the frame is arranged in the electrical control part. In order to avoid the influence of the external environment on the internal assembly process, most of the devices are isolated from the outside by a shell.

[0058] This application utilizes corresponding gripping manipulators for grasping and assembling the middle frame, PCBA board, maze base, maze cover, light guide column, and upper cover. Specifically, a middle frame grasping manipulator 310 is provided on the rack 100 corresponding to the middle frame loading device 210. The middle frame grasping manipulator 310 is used to grasp the middle frame delivered by the middle frame loading device 210 and place it on the positioning seat of the support trolley.

[0059] A PCBA board grabbing robot 320 and a middle frame auxiliary detection device 410 are provided on the frame corresponding to the PCBA board separation device 220. The middle frame auxiliary detection device 410 is used to detect and identify the position of the middle frame on the supporting trolley that is in place. The PCBA board grabbing robot 320 is used to grab the PCBA board delivered by the PCBA board separation device 220 and assemble it on the middle frame on the corresponding supporting trolley.

[0060] A maze base grasping robot 330 and a PCBA board auxiliary detection device 420 are provided on the frame corresponding to the maze base loading device 230. The PCBA board auxiliary detection device 420 is used to detect and identify the orientation of the PCBA board on the supporting trolley that is in place, and the maze base grasping robot 330 is used to grasp the maze base delivered by the maze base loading device 230 and assemble it on the upper part of the PCBA board.

[0061] A maze cover grabbing robot 340 and a maze base auxiliary detection device 430 are provided on the frame corresponding to the maze cover loading device 240. The maze base auxiliary detection device 430 is used to detect and identify the orientation of the maze base on the supporting trolley that is in place, and the maze cover grabbing robot 340 is used to grab the maze cover delivered by the maze cover loading device 240 and assemble it on the upper part of the maze base.

[0062] A light guide column grabbing robot 350 is provided on the frame 100 corresponding to the light guide column loading device 250. The light guide column grabbing robot 350 is used to grab the light guide columns delivered by the light guide column loading device 250 and assemble them in the maze cover and maze base on the corresponding supporting trolley.

[0063] An upper cover grabbing robot 360 is provided on the frame 100 corresponding to the upper cover loading device 260. The upper cover grabbing robot 360 is used to grab the upper cover delivered by the upper cover loading device 260 and place it on the upper part of the maze cover on the corresponding supporting trolley. An upper cover assembly device 530 is also provided on the frame 100 on the rear side of the upper cover grabbing robot 360. The upper cover assembly device 530 is used to press and buckle the upper cover onto the middle frame.

[0064] The detection device 270 is used to perform performance testing on the assembled smoke detector.

[0065] A finished product grabbing robot 370 is provided on the frame corresponding to the finished product unloading device 280 . The finished product grabbing robot 370 grabs the assembled smoke detector on the corresponding supporting trolley and places it on the finished product unloading device 280 .

[0066] Since a certain force needs to be applied when assembling the maze base and the maze cover, if it acts directly on the supporting trolley, it is easy to cause the supporting trolley or the circulating line track to deform due to frequent movements, thereby affecting the orderly operation of the entire production line. Therefore, a first assembly lifting platform 510 corresponding to the maze base grasping robot 330 and a second assembly lifting platform 520 corresponding to the maze cover grasping robot are also provided on the frame 100. The first assembly lifting platform 510 and the second assembly lifting platform 520 are both arranged at the lower part of the supporting trolley of the corresponding assembly station.

[0067] Specifically, the first assembly lift platform 510 and the second assembly lift platform 520 in this embodiment are both pneumatic cylinders fixed to the frame 100. During assembly, the output ends of the cylinders extend and engage with the lower portion of the positioning seat of the support trolley at the corresponding assembly station. The corresponding gripping manipulators grasp the maze base or maze cover before assembly, ensuring assembly accuracy and quality.

[0068] See also Figure 10 and Figure 11 When assembling the upper cover, it is necessary to ensure effective pressing and fastening. Therefore, this application separately designs an upper cover assembly device, which can improve effective positioning and force and ensure the quality of assembly. Specifically, the upper cover assembly device includes a supporting vertical plate 531 arranged on the frame, a lower assembly cylinder 534 arranged at the bottom of the supporting vertical plate and an upper assembly cylinder 533 arranged at the top of the supporting vertical plate, the action end of the upper assembly cylinder is provided with a pressing head 535 matching the upper cover, the action end of the lower assembly cylinder is provided with a base, and a plurality of sliding guide rods 536 are evenly distributed on the base in a circular manner. The number of sliding guide rods in this application is 4, and the middle frame is supported by four sliding guide rods evenly distributed on the circumference, and the lower part of the sliding guide rod 536 is provided with a compression spring 538 arranged between the base, and the compression spring 538 can push the sliding guide rod upward, and a press-in-place detection sensor 537 corresponding to each sliding guide rod 536 is also provided on the base, and the upper end of the sliding guide rod is provided with an upper support end 544 that fits with the middle frame to support it.

[0069] Furthermore, the base in this embodiment includes an upper transverse plate 539 and a lower transverse plate 540 arranged in parallel with each other. The lower transverse plate 540 is fixedly connected to the lower assembly cylinder 534. A connecting column 543 is provided between the upper transverse plate 539 and the lower transverse plate 540. The sliding guide rod 536 is slidingly arranged on the upper transverse plate 539. A compression spring 538 is provided between the lower end of the sliding guide rod 536 and the lower transverse plate 540. A sensor mounting platform 541 is provided on the lower side of the upper transverse plate 539. The press-in-place detection sensors 537 are all arranged on the sensor mounting platform 541. The sliding guide rod 536 is provided with a groove 542 corresponding to the press-in-place detection sensor 537. In order to facilitate the adjustment of the extension and contraction amount of the sliding guide rod 536, the present application provides an adjustment screw on the lower transverse plate, and the top of the adjustment screw is provided with a mounting groove corresponding to the compression spring.

[0070] During operation, after the support trolley moves into position, the upper assembly cylinder drives the pressing head 535 downward, so that the pressing head is aligned with the upper cover. The lower assembly cylinder drives the lower cross plate, upper cross plate, and sliding guide rods upward as a whole until the upper support end 544 at the top of the four sliding guide rods is supported on the lower part of the middle frame. At this time, there is no force between the middle frame and the support trolley. As the lower assembly cylinder continues to move upward, and under the action of the compression spring, the middle frame pushes the upper cover upward, completing the engagement of the multiple clips between the upper cover and the middle frame. Since there are four clips between the upper cover and the middle frame in this embodiment, if one of the clips is not engaged, the upper end of the sliding guide rod on the corresponding side will be lower than the upper ends of the other sliding guide rods. At this time, the press-in-place detection sensor can detect the state of the sliding guide rod that is not in place, and then issue an alarm.

[0071] The setting of the groove 542 on the sliding guide rod of the present application is used for in-position detection. When pressed into place, the groove on the sliding guide rod at the corresponding position is misaligned with the press detection sensor at the corresponding position, so that the existence of the sliding guide rod can be detected and the light comes on; when the pressure is not in place, the groove on the sliding guide rod is lower than the grooves on other sliding guide rods. At this time, the groove corresponds to the corresponding press detection sensor, and the existence of the sliding guide rod cannot be detected, and the light goes out.

[0072] Furthermore, the middle frame loading device, the maze base loading device, the maze cover loading device, and the upper cover loading device in this embodiment all include a silo 611, a first vibrating plate 612, and a first belt conveyor 613 connected to the discharge end of the vibrating plate. Guide side plates 614 are provided on both sides of the first belt conveyor, and a scraper-type loading device 615 is provided between the silo and the first vibrating plate. Taking the middle frame loading device as an example, the middle frames are stored in the silo and are continuously lifted and transported to the first vibrating plate by the scraper-type loading device. After the first vibrating plate vibrates and discharges the middle frames, the middle frames are discharged in an orderly manner. They are then transported to the waiting position via the corresponding first belt conveyor, waiting to be grabbed and assembled by the middle frame grabbing robot.

[0073] Since there are certain irregular protrusions or depressions between two adjacent parts, it is easy for the two parts to get stuck when squeezed, resulting in the rear workpiece being lifted up when the previous workpiece is grabbed, affecting the orderly progress of the assembly process. In this embodiment, an anti-hanging unit is provided at the discharge end of the first belt conveyor 613, and the anti-hanging unit is used to prevent the two adjacent parts on the first belt conveyor from hanging together.

[0074] Specifically, the anti-hanging unit in this embodiment includes a stop plate 701, an upper cover plate 702 and a side support block 703. The stop plate 701 is arranged at the end of the first belt conveyor 613, and the upper cover plate 702 is arranged on the upper part of the first belt conveyor. A limiting channel is formed between the upper cover plate and the conveying belt of the first belt conveyor to prevent the parts from tilting up. The side support block is arranged on the guide side plate, and the guide side plate is provided with a telescopic power push rod 704 that drives the side support block to move. Taking the middle frame as an example, after passing the first vibrating plate, the middle frame is placed in an orderly manner on the first belt conveyor and transported forward. The middle frame at the front end is at the grabbing station, and the middle frame at the rear is constrained by the upper cover plate. Even if it is squeezed by the middle frame at the rear, it will not tilt upward, and will not cause the middle frame to be misplaced. In order to avoid the middle frame at the grabbing station from being connected or stuck with the middle frame at the rear, the telescopic power push rod pushes the side support block to extend, so that the middle frame at the rear of the grabbing station is fixed between the side support block and the guide side plate by the action of the side support block, so that it will not move due to the grabbing of the middle frame at the grabbing station.

[0075] Furthermore, the light guide column loading device of the present application includes a second vibrating disk 621, a second belt conveyor 622 and a light guide column positioning mechanism. The light guide column positioning mechanism is used to clamp the light guide column on the second belt conveyor and change its direction so that the light guide column grabbing robot can grab it and assemble it. The light guide column positioning mechanism includes a positioning bracket 623, a transverse frame 624 arranged on the positioning bracket, a turntable 625 rotatably arranged on the transverse frame, a clamping power push rod 626 arranged on the turntable and a clamping head 627 arranged at the end of the clamping power push rod. When working, the light guide column transported by the second belt conveyor is clamped by the clamping head, and the light guide column is changed by 90° through the rotation of the turntable, from the previous horizontal to a vertical state, and finally grabbed by the light guide column grabbing robot, thereby facilitating the light guide column to be assembled into the maze base and the maze cover; the PCBA board separation device includes a board separator 631 and a third belt conveyor 632. The loading of light guide columns is relatively easier to control. The loading of PCBA boards can be done by selecting corresponding existing production equipment according to their own characteristics. Its structure will not be repeated here.

[0076] The detection device of the present application includes a detection bracket 271, an upper detection cylinder 272 arranged on the top of the detection bracket, an upper detection plate 273 fixedly arranged at the action end of the upper detection cylinder, multiple upper detection heads 274 fixedly arranged on the detection plate 273, a lower detection cylinder 275 arranged on the detection bracket, a lower detection plate 276 fixedly arranged at the action end of the lower detection cylinder and multiple lower detection heads 277 fixedly arranged on the lower detection plate. The multiple detection heads can realize the finished product detection of multiple smoke detectors at a single time; the finished product unloading device of the present application includes a fourth belt conveyor 641 and a fifth belt conveyor 642 arranged side by side, the fourth belt conveyor is used to convey qualified products grasped by the finished product grasping robot, and the fifth belt conveyor is used to convey unqualified products grasped by the finished product grasping robot.

[0077] According to the corresponding production needs, marking or inkjet devices can also be arranged, as shown in the figure, marking device 380 and marking detection device 390; for the middle frame auxiliary detection device, PCBA board auxiliary detection device, maze base auxiliary detection device, etc. in this application, infrared detection or image recognition detection can be used. In order to ensure the positioning and assembly accuracy of each component, corresponding auxiliary detection devices can also be added to the positions of other grasping manipulators to improve the detection accuracy and assembly quality, and use infrared detection or image recognition detection to ensure the effective positioning of the corresponding grasping manipulator. Each grasping manipulator in this embodiment has the function of driving the mechanical arm to rotate circumferentially, which is used to transfer parts between different workstations. It also has the function of driving the manipulator's grasping action to grab or put down parts; it also has the function of driving the manipulator's lifting action to achieve press assembly through lifting action when placing parts in the assembly station.

[0078] The circulating line track of the present application can be a circular ring-shaped or a long strip-shaped circulating line track as shown in the figure. The drive can be driven by overall synchronous drive or by a single supporting trolley that can be driven and controlled separately. It can be reasonably arranged according to the process steps of the entire production line. The action mode can be chain drive or rack and pinion drive. As shown in the figure, the supporting trolley is engaged with the circulating line track through multiple sets of supporting wheels, and the positioning seat is arranged on the supporting trolley in a cantilever structure. It is also possible to use two parallel circulating line tracks, match and support the two ends of the supporting trolley on the two circulating line tracks, or use other circulating line tracks in the prior art, but it is necessary to ensure the smooth operation of the overall structure.

[0079] The term "and / or" in this document indicates that three relationships can exist. For example, A and / or B can represent: A alone, A and B together, or B alone. Additionally, the character " / " in this document generally indicates that the preceding and following relationships are in an "or" relationship.

[0080] While preferred embodiments for implementing the present invention have been described in detail above, it should be understood that these embodiments are provided for illustrative purposes only and are not intended to limit the scope, applicability, or configuration of the present invention in any way. The scope of the present invention is defined by the appended claims and their equivalents. Persons skilled in the art may make numerous modifications to the aforementioned embodiments in light of the present invention, and such modifications are intended to fall within the scope of the present invention.

Claims

1. An intelligent assembly production line for smoke detectors, characterized in that: It includes a frame and a supporting trolley, on which a circular circular track is arranged; multiple groups of supporting trolleys are supported on the circular track, and a positioning seat is provided on the supporting trolley; along the circumference of the circular track, a middle frame loading device, a PCBA board separation device, a maze base loading device, a maze cover loading device, a light guide column loading device, an upper cover loading device, a detection device and a finished product unloading device are arranged in sequence, and a control cabinet is provided on the upper part or side of the frame; A middle frame grabbing manipulator is provided on the frame corresponding to the middle frame loading device, and the middle frame grabbing manipulator is used to grab the middle frame delivered by the middle frame loading device and place it on the positioning seat of the supporting trolley; A PCBA board grabbing manipulator and a middle frame auxiliary detection device are provided on the frame corresponding to the PCBA board depaneling device. The middle frame auxiliary detection device is used to detect and identify the position of the middle frame on the supporting trolley that has been positioned. The PCBA board grabbing manipulator is used to grab the PCBA board delivered by the PCBA board depaneling device and assemble it on the middle frame on the corresponding supporting trolley. A maze base grabbing manipulator and a PCBA board auxiliary detection device are provided on the frame corresponding to the maze base loading device. The PCBA board auxiliary detection device is used to detect and identify the position of the PCBA board on the supporting trolley that is in place. The maze base grabbing manipulator is used to grab the maze base delivered by the maze base loading device and assemble it on the upper part of the PCBA board. A maze cover grabbing manipulator and a maze base auxiliary detection device are provided on the frame corresponding to the maze cover feeding device. The maze base auxiliary detection device is used to detect and identify the position of the maze base on the supporting trolley that is in place. The maze cover grabbing manipulator is used to grab the maze cover delivered by the maze cover feeding device and assemble it on the upper part of the maze base. A light guide column grabbing robot is provided on the frame corresponding to the light guide column loading device, and the light guide column grabbing robot is used to grab the light guide column delivered by the light guide column loading device and assemble it into the maze cover and maze base on the corresponding supporting trolley; An upper cover grabbing robot is provided on the frame corresponding to the upper cover feeding device. The upper cover grabbing robot is used to grab the upper cover delivered by the upper cover feeding device and place it on the upper part of the maze cover on the corresponding supporting trolley. An upper cover assembling device is also provided on the frame behind the upper cover grabbing robot. The upper cover assembling device is used to press and buckle the upper cover onto the middle frame. The detection device is used to perform performance testing on the assembled smoke detector; A finished product grabbing manipulator is provided on the frame corresponding to the finished product unloading device, and the finished product grabbing manipulator grabs the smoke detector assembled on the corresponding supporting trolley and places it on the finished product unloading device; The upper cover assembly device includes a supporting vertical plate arranged on the frame, a lower assembly cylinder arranged at the bottom of the supporting vertical plate and an upper assembly cylinder arranged at the top of the supporting vertical plate, a pressing head matching the upper cover is provided at the action end of the upper assembly cylinder, a base is provided at the action end of the lower assembly cylinder, a plurality of sliding guide rods are evenly distributed on the base in a circumferential manner, a compression spring is provided between the bases at the lower parts of the sliding guide rods, a pressing-in-place detection sensor corresponding to each sliding guide rod is further provided on the base, and an upper supporting end head that fits the top support of the middle frame is provided at the upper end of the sliding guide rod; The base includes an upper horizontal plate and a lower horizontal plate which are arranged in parallel with each other, the lower horizontal plate is fixedly connected to the lower assembly cylinder, a connecting column is provided between the upper horizontal plate and the lower horizontal plate, the sliding guide rod is matched and slidably passed through the upper horizontal plate, a compression spring is provided between the lower end of the sliding guide rod and the lower horizontal plate, a sensor mounting platform is provided on the lower side of the upper horizontal plate, the press-in-place detection sensors are all arranged on the sensor mounting platform, and a groove corresponding to the press-in-place detection sensor is provided on the sliding guide rod; The light guide column loading device includes a second vibrating plate, a second belt conveyor and a light guide column positioning mechanism. The light guide column positioning mechanism includes a positioning bracket, a transverse frame arranged on the positioning bracket, a turntable rotatably arranged on the transverse frame, a clamping power push rod arranged on the turntable, and a clamping head arranged at the action end of the clamping power push rod; the PCBA board separating device includes a board separator and a third belt conveyor.

2. The intelligent assembly production line for smoke detectors according to claim 1 is characterized in that: The frame is also provided with a first assembly lifting platform corresponding to the maze base grasping robot and a second assembly lifting platform corresponding to the maze cover grasping robot. The first assembly lifting platform and the second assembly lifting platform are both arranged at the lower part of the supporting trolley of the corresponding assembly station.

3. The intelligent assembly production line for smoke detectors according to claim 2, characterized in that: The first assembly lifting platform and the second assembly lifting platform are both cylinders fixedly mounted on a frame; when assembled, the output ends of the cylinders extend out and fit in support with the lower portion of the positioning seat of the support trolley at the corresponding assembly station.

4. The intelligent assembly production line for smoke detectors according to claim 1, characterized in that: The middle frame loading device, the maze base loading device, the maze cover loading device and the upper cover loading device all include a silo, a first vibrating plate and a first belt conveyor connected to the discharge end of the vibrating plate. Guide side plates are provided on both sides of the first belt conveyor, and a scraper type loader is provided between the silo and the first vibrating plate.

5. The intelligent assembly production line for smoke detectors according to claim 4, characterized in that: The discharging end of the first belt conveyor is provided with an anti-hanging unit, and the anti-hanging unit is used to prevent two adjacent parts on the first belt conveyor from hanging together.

6. The intelligent assembly production line for smoke detectors according to claim 5, characterized in that: The anti-hanging unit includes a stop plate, an upper cover plate and a side support block. The stop plate is arranged at the end of the first belt conveyor. The upper cover plate is arranged on the upper part of the first belt conveyor. A limiting channel is formed between the upper cover plate and the conveyor belt of the first belt conveyor to prevent parts from tilting. The side support block is arranged on the guide side plate. The guide side plate is provided with a telescopic power push rod that drives the side support block to move.

7. The intelligent assembly production line for smoke detectors according to claim 1, characterized in that: The detection device includes a detection bracket, an upper detection cylinder arranged on the top of the detection bracket, an upper detection plate fixedly arranged at the action end of the upper detection cylinder, multiple upper detection heads fixedly arranged on the detection plate, a lower detection cylinder arranged on the detection bracket, a lower detection plate fixedly arranged at the action end of the lower detection cylinder, and multiple lower detection heads fixedly arranged on the lower detection plate. The multiple detection heads can realize the finished product detection of multiple smoke detectors at a time; The finished product unloading device includes a fourth belt conveyor and a fifth belt conveyor arranged side by side. The fourth belt conveyor is used to convey qualified products grasped by the finished product grasping robot, and the fifth belt conveyor is used to convey unqualified products grasped by the finished product grasping robot.

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