Double-track asynchronous production line for PCBA online three-proofing coating
By using a dual-track asynchronous production line structure and automated robotic arms, the PCBA conformal coating process has been automated and unmanned, solving the problems of high reliance on manual labor, low efficiency, and high quality risk in existing technologies, and improving production efficiency and space utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-03-20
AI Technical Summary
Existing PCBA conformal coating production lines suffer from problems such as high reliance on manual labor, low production efficiency, high quality risks, and high space requirements, making it difficult to achieve automated integration with upstream and downstream processes.
The system adopts a dual-track asynchronous production line structure, which includes two parallel coating production lines, a jig return track, and a flipping mechanism. Combined with automatic loading, coating, curing, flipping, and unloading robots, it realizes automated and unmanned operation of the conformal coating process.
It has enabled the automation of the three-proof coating process, shortened the production line length, avoided the quality risks of manual operation, and improved production efficiency and production line space utilization.
Smart Images
Figure CN224021950U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to three -proof coating technical field, especially, relate to a kind of double-track asynchronous production line for PCBA online three-proof coating. BACKGROUND
[0002] In the current PCBA (printed circuit board, Printed Circuit Board Assembly) three-proof coating production line practical application, for PCBA placement to production line mode, the current main is through artificial from turnover car / box to take PCBA, PCBA card is placed to three-proof coating fixture, make PCBA and fixture become a whole, then enter the three-proof coating production line of "Chinese character" layout and coat PCBA front, solidify PCBA front, whole overturn fixture and PCBA, coat PCBA back, solidify PCBA back, whole return fixture and PCBA, finally artificial takes down, and PCBA and fixture are separated, to complete the three-proof coating of PCBA. Three-proof coating process at least needs 1 person to participate, and PCBA's taking card placement turnover frequency is more, there is greater quality hidden danger, and the three-proof coating production line of "Chinese character" layout line body length is about 13m, and the number of fixtures required is more, and the length space requirement of workshop is high, and the overall production efficiency of production line is low and there is quality risk. With the gradual popularization of intelligent manufacturing, the "single-piece flow" production concept is deeply rooted in people's hearts, and embedding three-proof coating production line into PCBA welding assembly line body has become the widespread demand in the industry, and how to simply, efficiently and low-costly realize the automation of PCBA three-proof coating process and automatically connect with the front and rear processes has become a problem to be solved urgently. UTILITY MODEL CONTENTS
[0003] The utility model aims at providing a kind of double-track asynchronous production line for PCBA online three-proof coating, the production line simple structure, automation operation, production process is unmanned, production efficiency is high, guarantee PCBA three-proof coating quality while greatly improving the production efficiency of PCBA online three-proof coating.
[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0005] The utility model provides a kind of double-track asynchronous production line for PCBA online three-proof coating, including: two parallelly arranged coating production lines, two fixture return tracks and a plate turnover mechanism.
[0006] The two parallelly arranged coating production lines share an automatic coating machine and a curing oven, one coating production line is used for front coating and curing of PCBA, and the other coating production line is used for back coating and curing of PCBA.
[0007] The turnover mechanism is arranged at the rear end of the curing furnace, and is used for turning over the PCBA after the PCBA is coated and cured on the front side.
[0008] The production line further comprises an automatic plate loading manipulator arranged at the front end of the two coating production lines and an automatic plate unloading manipulator arranged at the rear end of the two coating production lines, the automatic plate loading manipulator is used for picking up the PCBA and placing the PCBA on the jig stopped on the coating production line, and the automatic plate unloading manipulator is used for picking up the PCBA coated and cured on the front side and placing the PCBA on the other coating production line.
[0009] Preferably, the two parallelly arranged coating production lines are arranged in the following manner:
[0010] One coating production line comprises the lifting mechanism one, the connection table one, the automatic coating machine, the connection table two, the curing furnace, the connection table three and the lifting mechanism two arranged in sequence, and the other coating production line comprises the lifting mechanism three, the connection table four, the automatic coating machine, the connection table five, the curing furnace, the connection table six and the lifting mechanism four arranged in sequence.
[0011] The lifting mechanism three and the lifting mechanism one are arranged in parallel, the connection table four and the connection table one are arranged in parallel, the connection table five and the connection table two are arranged in parallel, the connection table six and the connection table three are arranged in parallel, and the lifting mechanism four and the lifting mechanism two are arranged in parallel.
[0012] The connection table four and the connection table one are connected to the automatic coating machine, and the connection table five and the connection table two are connected to the curing furnace.
[0013] Preferably, a jig return track is arranged between the lower layer of the lifting mechanism one and the lower layer of the lifting mechanism two, and a jig return track is arranged between the lower layer of the lifting mechanism three and the lower layer of the lifting mechanism four.
[0014] Preferably, the turnover mechanism is installed on the connection table three and is used for clamping the PCBA from the jig, turning over the PCBA and then placing the PCBA on the jig.
[0015] Preferably, the turnover mechanism comprises an adjustable clamping rod, a turnover cylinder and a lifting cylinder.
[0016] The turnover mechanism is used for,
[0017] When the jig carrying the PCBA enters the connection table three and reaches below the turnover mechanism, the transportation track of the connection table three stops rotating, the lifting cylinder descends from the top to the bottom, the adjustable clamping rod clamps the PCBA, the lifting cylinder rises to the top, the turnover cylinder turns over, the PCBA is turned over, then the lifting cylinder descends to the bottom to release the PCBA on the jig, the lifting cylinder rises to the top to wait, and the transportation track of the connection table three continues to transport the jig carrying the PCBA.
[0018] Preferably, the upper layer position of the lifting mechanism one is parked for an empty jig for carrying PCBA;
[0019] The upper layer position of the lifting mechanism four is parked for an empty jig for carrying PCBA.
[0020] Preferably, the production line comprises an automatic plate feeding manipulator arranged at the front end of the lifting mechanism one and the lifting mechanism three, and an automatic plate discharging manipulator arranged at the rear end of the lifting mechanism two and the lifting mechanism four.
[0021] The automatic plate feeding manipulator is used for grabbing PCBA and placing it on the jig parked at the upper layer of the lifting mechanism one.
[0022] The automatic plate discharging manipulator is used for grabbing PCBA parked at the upper layer of the lifting mechanism and placing it on the empty jig parked at the upper layer of the lifting mechanism four, and grabbing PCBA parked at the upper layer of the lifting mechanism four and placing it on the transmission track of the next process.
[0023] Preferably, the jig comprises a perforated bottom plate and a supporting pin, and the supporting pin is fixed in the hole on the perforated bottom plate by a screw to form a space for stabilizing and supporting PCBA.
[0024] Preferably, a plurality of holes are arranged on the perforated bottom plate, and different arrangements and combinations of the holes and the supporting pins are suitable for different types of PCBA.
[0025] The beneficial effects achieved by the utility model are as follows:
[0026] The utility model realizes the automatic docking of the three-proofing coating process and the previous and next processes, realizes the automatic completion of the three-proofing coating process content, realizes the shortening of the production line length by half compared with the conventional production line length, realizes the unmanned operation of the three-proofing coating, solves the strong dependence of the three-proofing coating process on manpower, avoids the quality risk of collision and static damage caused by manual PCBA taking and placing, and adopts the separated PCBA overturning mode in the plate overturning process of the production line, that is, only the PCBA is overturned, which is a new exploration and innovation compared with the conventional overturning of the PCBA and the jig. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 is the jig structure diagram for carrying PCBA in the utility model;
[0028] Figure 2 is the whole structure schematic diagram of the double-track asynchronous production line for the PCBA online three-proofing coating provided by the utility model;
[0029] Figure 3It is the structure schematic diagram of the turnover plate mechanism in the utility model. DETAILED DESCRIPTION
[0030] The specific embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The examples described below by referring to the drawings are illustrative and are intended to explain the utility model, and cannot be understood as limiting the utility model.
[0031] In the description of the utility model, it needs to be explained that the terms "upper", "lower", "front", "rear", "end", "bottom", "side" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the devices or components referred to must have a particular orientation, therefore, cannot be understood as limiting the utility model.
[0032] In the utility model, unless otherwise explicitly specified and limited, the terms "connection", "installation" and the like should be understood broadly, for example, can be fixed connection, can also be direct connection, can also be connected through intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0033] Secondly, the "one embodiment" or "embodiment" referred to in the utility model means that the specific features, structures or characteristics can be contained in at least one implementation manner of the utility model. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is the embodiment that is single or alternative and mutually exclusive with other embodiments.
[0034] The specific embodiments of the utility model will be further described in detail below in combination with the drawings. The following examples are used to illustrate the utility model, but are not used to limit the scope of the utility model.
[0035] The utility model provides a kind of double-track asynchronous production line for PCBA online three-proofing coating, including two parallelly arranged coating production lines, two fixture return tracks and turnover plate mechanism.
[0036] In the utility model, one automatic coating machine and curing oven are shared by two coating production lines, one coating production line is used to coat and cure the front of PCBA, and the other coating production line is used to coat and cure the back of PCBA.
[0037] In the utility model, the turnover plate mechanism is arranged at the rear end of the curing oven, and the turnover plate mechanism is used to clamp PCBA from the fixture carrying PCBA after the front of PCBA is coated and cured, and then place PCBA on the fixture after turning over.
[0038] The utility model also includes the automatic plate feeding manipulator of configuration in the front end of coating production line and the automatic plate unloading manipulator of configuration in the rear end of coating production line, and the automatic plate feeding manipulator is used for fetching PCBA and places to the fixture that stops on the coating production line, and the automatic plate unloading manipulator is used for fetching the PCBA after the front coating and solidification to another coating production line.
[0039] As Figure 2 Shown, in one embodiment, a coating production line includes the lifting mechanism one 11, the docking platform one 12, the automatic coating machine 10, the docking platform two 13, the curing oven 20, the docking platform three 14 and the lifting mechanism two 15 that are configured in turn, another coating production line includes the lifting mechanism three 21, the docking platform four 22, the automatic coating machine 10, the docking platform five 23, the curing oven 20, the docking platform six 24 and the lifting mechanism four 25 that are configured in turn,
[0040] Among them, the lifting mechanism three 21 is configured side by side with the lifting mechanism one 11, the docking platform four 22 is configured side by side with the docking platform one 12, the docking platform five 23 and the docking platform two 13 are configured side by side, the docking platform six 24 and the docking platform three 14 are configured side by side, the lifting mechanism four 25 is configured side by side with the lifting mechanism two 15, the docking platform four 22 and the docking platform one 12 are connected to the automatic coating machine 10, and the docking platform five 23 and the docking platform two 13 are connected to the curing oven 20.
[0041] The lower layer of the lifting mechanism one 11 and the lower layer of the lifting mechanism two 15 are provided with a fixture return track, and the lower layer of the lifting mechanism three 21 and the lower layer of the lifting mechanism four 25 are provided with a fixture return track.
[0042] The turnover mechanism 30 is installed on the docking platform three 14, and is used for clamping PCBA from the fixture, turning over, and then placing on the fixture.
[0043] The upper layer position of the lifting mechanism one 11 stops the fixture for carrying PCBA, and the upper layer position of the lifting mechanism four 25 stops the fixture for carrying PCBA.
[0044] Referring to Figure 2 In one embodiment, the automatic plate feeding manipulator 41 configured in the front end of the lifting mechanism one 11 and the lifting mechanism three 21, and the automatic plate unloading manipulator 42 configured in the rear end of the lifting mechanism two 15 and the lifting mechanism four 25.
[0045] The automatic plate feeding manipulator 41 is used for fetching PCBA and placing on the fixture stopped on the upper layer of the lifting mechanism one 11.
[0046] The automatic plate unloading manipulator 42 is used for fetching the PCBA stopped on the upper layer of the lifting mechanism two 15 and placing on the empty fixture stopped on the upper layer of the lifting mechanism four 25, and fetching the PCBA stopped on the upper layer of the lifting mechanism four 25 and placing on the transmission track of the next process.
[0047] Referring to Figure 1 In one embodiment, the jig comprises an open-bottom plate 51 and support pins 52, which are fixed in the holes of the open-bottom plate 51 by screws.
[0048] The jig is designed for different PCBA 53 types, i.e. different lengths and widths of the PCBA board 53. The support pins 52 are screwed on the corresponding holes of the open-bottom plate 51, so that the PCBA 53 is firmly placed in the jig. Different arrangements and combinations of the holes on the open-bottom plate 51 and the support pins 52 can adapt to different types of PCBA 53, achieving the effect of a jig supporting multiple types of PCBA board 53.
[0049] Referring to Figure 3 In one embodiment, the turnover mechanism 30 comprises an adjustable clamping rod 31, a turnover cylinder 32 and a lifting cylinder 33,
[0050] When the jig carrying the PCBA enters the docking station three 14 and reaches below the turnover mechanism 30, the docking station three 14 transport track stops rotating. The lifting cylinder 33 descends from the top to the bottom, the adjustable clamping rod 31 clamps the PCBA, then the lifting cylinder 33 rises to the top, the turnover cylinder 32 turns over, the PCBA is turned over, then the lifting cylinder 33 descends to the bottom, releases the PCBA to the jig, the lifting cylinder 33 rises to the top, waits, and the docking station three 14 transport track continues to rotate to transport the jig carrying the PCBA.
[0051] Based on the above-mentioned double-track asynchronous production line for online three-proofing coating of PCBA, the working process is as follows:
[0052] When the PCBA is transferred from the previous process to the position of the automatic loading robot 41, the fixture stops at the upper position of the lifting mechanism 11. The automatic loading robot 41 picks up the PCBA and places it on the fixture. After the fixture carrying the PCBA enters the receiving platform 12, the lifting mechanism 11 descends to the lower position. The fixture carrying the PCBA passes through the receiving platform 12 and enters the automatic coating machine 10, where the front of the PCBA is sprayed. It then enters the receiving platform 23 and the curing oven 20 to cure the front of the PCBA. Finally, it enters the receiving platform 3. After step 14, the flipping mechanism 30 picks up the PCBA from the fixture, flips it over, and places it back onto the fixture. The fixture then carries the PCBA into the upper level of the lifting mechanism 2 15. At this time, an empty fixture is parked on the upper level of the lifting mechanism 4 25. The automatic unloading robot 42 picks up the PCBA parked on the upper level of the lifting mechanism 2 15 and places it onto the empty fixture on the lifting mechanism 4 25. The lifting mechanism 2 15 descends carrying the empty fixture. The empty fixture passes through the lower fixture return track inside the line and reaches the lower position of the lifting mechanism 1 11. After entering the lifting mechanism 11, the lifting mechanism 11, carrying the empty fixture, rises to the upper position, awaiting the placement of the board by the automatic board-loading robot 41; the lifting mechanism 425, carrying the fixture and PCBA, descends to the lower position, enters the lower fixture return track inside the line, and reaches the lower position of the lifting mechanism 321. At this time, the lifting mechanism 425 rises to the upper position, and the fixture carrying the PCBA enters the lifting mechanism 321. The lifting mechanism 321, carrying the fixture and PCBA, rises to the upper position, and then the fixture carries... After the PCBA enters the receiving platform 4 22, the lifting mechanism 3 21 descends to the lower position to wait. The fixture carrying the PCBA passes through the receiving platform 4 22 and enters the automatic coating machine 10, where the reverse side of the PCBA is sprayed. It then enters the receiving platform 5 23 and the curing oven 20 to cure the reverse side of the PCBA. Finally, it enters the receiving platform 6 24 and the upper position of the lifting mechanism 4 25. The automatic unloading robot 42 picks up the PCBA from the lifting mechanism 4 25 and places it on the transfer track for the next process. The empty fixture remains on the upper position of the lifting mechanism 25, waiting. At this point, the PCBA completes the entire three-proof process.
[0053] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A dual-track asynchronous production line for online conformal coating of PCBA, characterized in that, include: Two parallel coating production lines, two fixture return tracks, and a flipping mechanism; The two parallel coating production lines share an automatic coating machine and a curing oven. One coating production line is used for front coating and curing of PCBA, and the other coating production line is used for back coating and curing of PCBA. The flipping mechanism is located at the rear end of the curing oven. The flipping mechanism is used to flip the PCBA after the front side has been coated and cured. The production line also includes an automatic board loading robot configured at the front end of the two coating production lines and an automatic board unloading robot configured at the rear end of the two coating production lines. The automatic board loading robot is used to pick up PCBAs and place them on a fixture that is stopped on the coating production line. The automatic board unloading robot is used to pick up PCBAs that have been coated and cured on the front end and transfer them to another coating production line.
2. The dual-track asynchronous production line for online conformal coating of PCBA according to claim 1, characterized in that, The two parallel coating production lines are configured as follows: One coating production line includes, in sequence, a lifting mechanism 1, a connecting platform 1, an automatic coating machine, a connecting platform 2, a curing oven, a connecting platform 3, and a lifting mechanism 2; another coating production line includes, in sequence, a lifting mechanism 3, a connecting platform 4, an automatic coating machine, a connecting platform 5, a curing oven, a connecting platform 6, and a lifting mechanism 4. The lifting mechanism three is arranged in parallel with the lifting mechanism one, the connecting platform four is arranged in parallel with the connecting platform one, the connecting platform five is arranged in parallel with the connecting platform two, the connecting platform six is arranged in parallel with the connecting platform three, and the lifting mechanism four is arranged in parallel with the lifting mechanism two. Both the fourth and first connecting platforms are connected to an automatic coating machine, and both the fifth and second connecting platforms are connected to a curing oven.
3. A dual-track asynchronous production line for online conformal coating of PCBA according to claim 2, characterized in that, A jig return track is provided between the lower level of the lifting mechanism and the lower level of the second lifting mechanism, and a jig return track is provided between the lower level of the third lifting mechanism and the lower level of the fourth lifting mechanism.
4. A dual-track asynchronous production line for online conformal coating of PCBA according to claim 3, characterized in that, The flipping mechanism is installed on the connecting platform three and is used to pick up the PCBA from the fixture, flip it over, and then place it back onto the fixture.
5. A dual-track asynchronous production line for online conformal coating of PCBA according to claim 4, characterized in that, The flipping mechanism includes an adjustable clamping rod, a tilting cylinder, and a lifting cylinder. The flip-plate mechanism is used for, When the fixture carrying the PCBA enters the third transfer platform and reaches below the flipping mechanism, the transport track of the third transfer platform stops rotating, the lifting cylinder descends from the top to the bottom, the adjustable clamping rod clamps the PCBA, the lifting cylinder rises to the top, the flipping cylinder flips, the PCBA flips over, then the lifting cylinder descends to the bottom, releasing the PCBA onto the fixture, the lifting cylinder rises to the top to wait, and the transport track of the third transfer platform rotates to continue transporting the fixture carrying the PCBA.
6. A dual-track asynchronous production line for online conformal coating of PCBA according to claim 3, characterized in that, The upper position of the lifting mechanism 1 is where an empty fixture for supporting the PCBA is placed; The upper position of the lifting mechanism four is where an empty fixture for supporting the PCBA is placed.
7. A dual-track asynchronous production line for online conformal coating of PCBA according to claim 6, characterized in that, The production line includes an automatic loading robot arm configured at the front end of the lifting mechanism one and the lifting mechanism three, and an automatic unloading robot arm configured at the rear end of the lifting mechanism two and the lifting mechanism four. The automatic loading robot is used to grab PCBA and place it onto a fixture that is stopped on the upper level of the lifting mechanism; The automatic unloading robot is used to grab PCBAs that are stopped on the upper layer of the lifting mechanism and place them on the empty fixtures that are stopped on the upper layer of the lifting mechanism, and to grab PCBAs that are stopped on the upper layer of the lifting mechanism and place them on the transfer track of the next process.
8. A dual-track asynchronous production line for online conformal coating of PCBA according to claim 1, characterized in that, The fixture includes a perforated base plate and a support pin. The support pin is fixed in the hole in the perforated base plate by screws to form a space for stabilizing and supporting the PCBA.
9. A dual-track asynchronous production line for online conformal coating of PCBA according to claim 8, characterized in that, The perforated base plate has multiple openings, and different arrangements and combinations of the openings and support pins can be used to adapt to different types of PCBAs.