A cleaning method and a cleaning tool structure for a board-level package product cleaning tool structure

Abstract

The application discloses a cleaning method and a jig structure of a board-level package product cleaning jig structure, and is used for reducing warping deformation in a cleaning process. The structure comprises a jig main body and a pressing assembly. A product placing area is arranged in the middle of the jig main body, reinforcing ribs connected with both sides of the main body are arranged in the jig main body, and support points and limiting members are distributed. The pressing assembly is arranged at four corners, a holding assembly is arranged between the pressing assembly and the main body, the main body is provided with an opening auxiliary structure, and detachable reinforcing blocks are arranged around the main body. The method comprises the following steps: obtaining a working position state to determine whether the jig is in a feeding state or a discharging state; when feeding, the product is loaded into the placing area, positioned by the limiting members, supported by the support points, and then enters the cleaning structure, so that the cleaning medium acts on the product through the hollow structure, and after completion, the product is transferred into a discharging buffer area and switched to the discharging state; when discharging, the product is aligned with the working position, the pressing assembly is separated from the holding assembly through the opening auxiliary structure to complete the discharging, and the product is switched to the feeding state.

Description

Technical Field

[0001] This application relates to the field of production cleaning, and in particular to a cleaning method and fixture structure for a cleaning fixture structure for board-level packaged products. Background Technology

[0002] With the continuous development of board-level packaging technology, related products typically require a cleaning process during production to remove residual flux, particulate contaminants, and other impurities from the surface, thereby ensuring the reliability of subsequent processes and product quality. Existing cleaning processes mostly employ wet cleaning equipment, treating products through methods such as spraying, immersion, or circulating rinsing.

[0003] However, in practical applications, board-level packaged products typically have large dimensions and thin structures, making them susceptible to warping and deformation during cleaning due to factors such as liquid impact, temperature changes, and stress release. Warping during cleaning leads to uneven cleaning results, localized residual contamination, structural damage, and even affects subsequent assembly accuracy, ultimately reducing overall yield. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a cleaning method and fixture structure for board-level packaged products, which reduces the risk of warping deformation during cleaning.

[0005] The technical solution provided in this application is described below:

[0006] The first aspect of this application provides a fixture structure, including: Fixture body and pressing components; The product placement area is formed in the middle of the main body of the fixture. The product placement area has a hollow structure and is provided with reinforcing ribs. The reinforcing ribs are connected to the two opposite sides of the main body of the fixture. Support points and limiting components are distributed inside the main body of the fixture. The pressing components are disposed at the four corners of the fixture body, and a retaining component is disposed between the pressing components and the fixture body. The retaining component is used to keep the pressing components in a pressing state, and the fixture body is provided with an opening auxiliary structure for releasing the pressing components from the retaining state. The jig body has reinforcing blocks around its four sides, and the reinforcing blocks are detachably connected to the jig body.

[0007] Optionally, the retaining component includes magnetic suction kits respectively disposed on the opposing surfaces of the pressing component and the fixture body.

[0008] Optionally, the opening auxiliary structure is a through hole, which is aligned with the pressing component so that an external lifting member passes through and lifts the pressing component.

[0009] Optionally, the limiting members are distributed along the inner periphery of the product placement area, and the limiting members are used to circumferentially limit the product placed in the product placement area, with an assembly gap reserved between the limiting members and the product.

[0010] Optionally, a fixing hole is provided on the outer side of the fixture body, and the fixing hole cooperates with the fixing member to fix the reinforcing block to the fixture body.

[0011] Optionally, the fixture body is provided with an identification structure, which is used to identify the identity information of the fixture body.

[0012] Optionally, the support point is located in the product placement area, and the fulcrum of the support point is higher than the upper surface of the fixture body.

[0013] The second aspect of this application provides a cleaning method for a cleaning fixture structure of a board-level packaged product, including: Obtain the workstation status, and confirm the fixture status of the fixture body based on the workstation status. The fixture status includes loading status and unloading status. When the fixture is in the loading state, the product is assembled into the product placement area, and after being limited by the limiting component and supported by the support point, it is input into the cleaning structure, so that the cleaning medium acts on the product through the hollow structure of the product placement area. When the cleaning structure feedback that the cleaning is completed, the fixture body is input into the unloading buffer area and the fixture state is switched to the unloading state. When the fixture is in the unloading state, the fixture body is aligned with the unloading station. The unloading station uses the opening auxiliary structure to disengage the pressing component from the holding component to complete the unloading, and then switches the fixture state of the fixture body to the loading state.

[0014] Optionally, when the fixture is in the loading state, the product is assembled into the product placement area, limited by the limiting component, supported by the support point, and then input into the cleaning structure, so that the cleaning medium acts on the product through the hollow structure of the product placement area. When the cleaning structure reports that cleaning is complete, the fixture body is input into the unloading buffer area and the fixture state is switched to the unloading state, including: When the fixture is in the loading state, align the fixture body with the loading station; The opening auxiliary structure, in conjunction with the opening mechanism built into the feeding station, allows the pressing component to detach from the holding component and be in the open state. According to the open state, the product is placed in the product placement area, and the product is limited by the limiting member and supported by the support point; The support state is determined based on the contact state between the product and the support points; When the supporting state matches the preset state, a pressing signal is output; The pressing component is kept in a pressing state by the retaining component according to the pressing signal; According to the pressing state, the fixture body carrying the product is input into the cleaning mechanism for cleaning, and after cleaning, it is input into the unloading buffer area.

[0015] Optionally, before inputting the material into the unloading buffer area after cleaning, the method further includes: Obtain feedback on product cleaning effectiveness and the working status of the cleaning facility; When the working status of the cleaning mechanism indicates that the current cleaning cycle is completed, the cleaning result is determined based on the product cleaning effect feedback. When the cleaning result meets the preset index, the main body of the fixture is input into the unloading buffer area; When the cleaning result does not meet the preset index, the fixture body is controlled to re-enter the cleaning mechanism, so that the cleaning medium acts on the product again through the hollow structure of the product placement area, and the number of cleaning times is recorded. When the number of cleaning cycles exceeds a preset number, a warning message is generated and the cleaning process is paused.

[0016] Optionally, when the fixture is in the unloading state, the fixture body is aligned with the unloading station, and the unloading station uses the opening auxiliary structure to disengage the pressing component from the holding component to complete the unloading, and the fixture state of the fixture body is switched to the loading state, including: When the fixture is in the unloading state, the target fixture body is selected from the unloading buffer and a release command is output according to the buffer state of the unloading buffer and the unloading station state. According to the release command, the target fixture body is transported to the unloading station and aligned with the reference position of the unloading station; The opening auxiliary structure, in conjunction with the opening mechanism, allows the pressing component to detach from the retaining component and be in the open state; The presence status of the product in the product placement area and the open status of the pressing component are obtained; When the product is present and the pressing component is in the open state, a material picking permission signal is output; The product is removed from the product placement area according to the material handling permission signal, and the fixture status of the fixture body is switched to the loading status.

[0017] As can be seen from the above technical solutions, this application has the following advantages: By setting support points and limiting components in the product placement area of ​​the fixture body, and setting pressing components at the four corners of the fixture body to maintain the pressing state, the board-level packaged products are simultaneously supported, limited, and pressed at the edges and corners during the cleaning process. This suppresses the warping deformation of the product caused by liquid impact, temperature changes, and stress release during wet cleaning, thereby improving the technical problems of uneven product cleaning, local residual contamination, and reduced subsequent assembly accuracy. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of one embodiment of the fixture structure in this application; Figure 2 This is a schematic diagram of an embodiment of the pressing component in the fixture structure of this application; Figure 3 This is a schematic flowchart of an embodiment of the cleaning method for the cleaning fixture structure of board-level packaged products in this application; Figure 4a This is a schematic flowchart of an embodiment of the cleaning method for the first stage of the cleaning fixture structure of the board-level packaged product in this application; Figure 4b This is a schematic flowchart of an embodiment of the cleaning method for the second stage of the cleaning fixture structure for board-level packaged products in this application. Detailed Implementation

[0020] In this application, the entity executing the cleaning method is not limited and can be the control terminal of the cleaning equipment, the control system of the automated production line, or other devices capable of workstation scheduling and process control. This application achieves stable load-bearing and state switching of board-level packaged products during the cleaning process through coordinated control of the fixture structure and the cleaning process.

[0021] In this specific embodiment, the control terminal of the cleaning production line acts as the execution subject, acquiring and judging the status of each station, and controlling its flow process between the loading station, cleaning station and unloading station based on the structural features of the fixture body, thereby realizing the automated execution of product assembly, cleaning treatment and unloading.

[0022] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0023] Please see Figures 1 to 2 This application provides one embodiment of a fixture structure, which includes: Fixture body 1 and pressing component 2; The product placement area is formed in the middle of the fixture body 1. The product placement area has a hollow structure. Reinforcing ribs 3 are provided in the product placement area. The reinforcing ribs 3 are connected to the two opposite sides of the fixture body 1. Support points 4 and limiting members 5 are distributed inside the fixture body 1. The pressing component 2 is disposed at the four corners of the fixture body 1. A retaining component 6 is disposed between the pressing component 2 and the fixture body 1. The retaining component 6 is used to keep the pressing component 2 in a pressing state. The fixture body 1 is provided with an opening auxiliary structure 7 for releasing the pressing component 2 from the retaining state. The jig body 1 has reinforcing blocks 8 around its four sides, and the reinforcing blocks 8 are detachably connected to the jig body 1.

[0024] The main body of the fixture 1 has a plate-frame structure with a closed frame around its perimeter and a through opening in the middle to form a product placement area. This product placement area is an empty structure without a bottom surface, allowing the cleaning medium to pass directly under the product during the cleaning process, avoiding the obstruction of the cleaning path by traditional support surfaces.

[0025] Reinforcing ribs 3 are installed on both sides of the product placement area, spanning the opening area and fixedly connected to the side frames. The reinforcing ribs 3 form a rigid connection structure between the side frames, thus maintaining the overall rigidity of the fixture body 1 even with the central open section, preventing deformation during handling, clamping, and cleaning impacts. The reinforcing ribs 3 can be strip-shaped, with one or more ribs arranged in different directions depending on the product size.

[0026] The product placement area is equipped with support points 4 and limiting components 5. Support points 4 provide multi-point support for the bottom of the product, ensuring a stable stress state after placement; limiting components 5 are used to position and restrict the product's edges, keeping the product in a fixed position in the planar direction.

[0027] The pressing components 2 are located at the four corners of the fixture body 1, with at least one pressing component 2 at each corner. The pressing components 2 are used to apply downward pressing force to the edges and corners of the product after it has been placed, so that the product remains flat during the cleaning process. The pressing components 2 can switch between an open state and a pressing state. In the open state, they provide space for product assembly, and in the pressing state, they constrain the edges and corners of the product.

[0028] A retaining component 6 is provided between the pressing component 2 and the fixture body 1. The retaining component 6 is used to maintain the position of the pressing component 2 after it is closed, so that the pressing component 2 will not open on its own under vibration or liquid flow impact. At the same time, an opening auxiliary structure 7 is provided on the fixture body 1, which is used to cooperate with external equipment to release the function of the retaining component 6, so that the pressing component 2 can be lifted and rotated to the open state.

[0029] The fixture body 1 has reinforcing blocks 8 around its four sides. The reinforcing blocks 8 are used to thicken or reinforce the edges, especially in the area where the pressing component 2 is located, to improve the durability of the area subjected to repeated pressing and stress.

[0030] In this embodiment, the retaining component 6 includes magnetic suction kits respectively disposed on the opposing surfaces of the pressing component 2 and the fixture body 1.

[0031] The retaining component 6 uses a magnetic structure to retain the pressing component 2. Magnetic elements are respectively set on the lower surface of the pressing component 2 and the corresponding position of the fixture body 1. When the pressing component 2 is closed, the two attract each other, thereby forming a stable pressing and retaining state.

[0032] The magnetic components are preferably embedded within the structure, making the contact surfaces essentially flush, thus avoiding any protrusion that could affect product placement or interfere with the cleaning equipment. The magnetic components utilize a combination of permanent magnets and magnetic conductive parts, or a dual-magnet structure. The magnetic attraction force is designed according to the product size and holding requirements to ensure that the pressing assembly 2 can both stably hold the product and be released by external force.

[0033] In this embodiment, the opening auxiliary structure 7 is a through hole, which is aligned with the pressing component 2 so that the external lifting member passes through and lifts the pressing component 2.

[0034] The auxiliary structure 7 is configured as a through hole structure that penetrates the main body 1 of the fixture. The position of the through hole corresponds to that of the pressing component 2, so that the lifting component in the external equipment can enter through the through hole and act on the force-bearing part of the pressing component 2.

[0035] In practical applications, when the fixture body 1 enters the loading or unloading station, the lifting mechanism in the station rises, and its push rod passes through the through hole and presses against the pressing component 2, causing the pressing component 2 to disengage from the magnetic holding state and flip up around the connection position, thereby forming an open state. This structure avoids setting a drive mechanism inside the fixture, simplifying the structure and improving reliability.

[0036] In this embodiment, the limiting member 5 is distributed along the inner periphery of the product placement area. The limiting member 5 is used to circumferentially limit the product placed in the product placement area, and an assembly gap is reserved between the limiting member 5 and the product.

[0037] The limiting members 5 are distributed along the periphery of the inner edge of the product placement area, forming a limiting boundary around the product. The limiting members 5 are preferably protruding structures, such as cylindrical or conical protrusions, whose height is lower than the pressing height of the pressing component 2 but higher than the product placement reference.

[0038] When the product is placed, its edge contacts the limiting member 5, thereby determining the product's position in the planar direction. An assembly gap is provided between the limiting member 5 and the product to allow the product to be smoothly placed into the product placement area and to allow for fine-tuning during placement. The assembly gap is designed according to the product's dimensional tolerances to balance assembly efficiency and positioning accuracy.

[0039] In this embodiment, a fixing hole is provided on the outer side of the fixture body 1, and the fixing hole, together with the fixing member, fixes the reinforcing block 8 to the fixture body.

[0040] Fixing holes are provided on the outer side of the frame of the fixture body 1. The fixing holes are used to install the reinforcing block 8. The fixing holes cooperate with fasteners such as screws to fix the reinforcing block 8 to the fixture body 1.

[0041] Reinforcing blocks 8 are installed around the perimeter of the frame, especially in the area where the pressing component 2 is located. Connected to fasteners via fixing holes, reinforcing blocks 8 are detachable and can be replaced individually when local structures are worn or damaged, improving maintenance convenience and extending the fixture's service life.

[0042] In this embodiment, the fixture body is provided with an identification structure, which is used to identify the identity information of the fixture body.

[0043] A marking structure is provided on the main body 1 of the fixture to record and identify the fixture's identity information. The marking structure is located on the outer side of the frame or on the upper surface.

[0044] The identification structure can take the form of QR codes, barcodes, laser engraving, or RFID tags, etc., without specific limitations. Through this identification structure, the cleaning equipment or production line control system can identify different fixtures, enabling automatic scheduling, process management, or data recording.

[0045] In this embodiment, the support point 4 is located in the product placement area, and the fulcrum of the support point 4 is higher than the upper surface of the fixture body 1.

[0046] Support point 4 is located inside the product placement area, and a support network is formed by multiple dispersed protruding structures. Support point 4 is preferably a cone structure, with its top forming a fulcrum that contacts the bottom of the product.

[0047] The support point 4 is higher than the upper surface of the fixture body 1, so that the product is lifted up after placement, thus creating a space between the bottom of the product and the fixture body 1. This space is connected to the hollow area of ​​the product placement area, allowing the cleaning medium to pass through from below the product.

[0048] The number of support points 4 is set according to the product size and load-bearing requirements. Multiple support points 4 form a multi-point support structure, which makes the product bear the force evenly and reduces local stress concentration. At the same time, the conical structure can reduce the contact area, reduce obstruction of the cleaning fluid, and improve cleaning efficiency.

[0049] In this embodiment, after the product is placed in the product placement area, the support point 4 forms a bottom support, the limiting member 5 completes the planar positioning, and the pressing component 2 presses down on the edges and corners of the product. The three together form a stable constraint system, keeping the product flat during the cleaning process.

[0050] Meanwhile, since the product placement area has a hollow structure and the support point 4 lifts the product off the surface of the fixture body 1, the cleaning medium can act simultaneously from both the top and bottom sides of the product, improving the overall cleaning uniformity.

[0051] The pressing component 2 and the opening auxiliary structure 7 work together with external equipment to achieve automatic opening and closing, enabling the fixture structure to be adapted to automated cleaning production lines and realize continuous operation of the feeding, cleaning and unloading processes.

[0052] This embodiment, through structural multi-point support and edge clamping, can significantly reduce the risk of edge warping and deformation of board-level packaged products during the cleaning process, thereby improving cleaning uniformity and enhancing the assembly accuracy and overall yield of subsequent processes.

[0053] The cleaning fixture structure for board-level packaged products in this application has been described in detail above. The cleaning method for the board-level packaged product cleaning fixture structure will be described in detail below.

[0054] Please see Figure 3 This application provides an embodiment of a cleaning method for a cleaning fixture structure of board-level packaged products, which includes: S301. Obtain the station status, and confirm the fixture status of the fixture body based on the station status. The fixture status includes loading status and unloading status. The workstation status is used to characterize the functional area where the fixture body is currently located. The functional area includes at least the loading area, cleaning area, and unloading area. By identifying the workstation status, it can be determined whether the fixture body is currently in the assembly stage or the unloading stage, thus providing a basis for subsequent process control.

[0055] S302. When the fixture is in the loading state, the product is assembled into the product placement area, and after being limited by the limiting member and supported by the support point, it is input into the cleaning structure, so that the cleaning medium acts on the product through the hollow structure of the product placement area. When the cleaning structure feedback that the cleaning is completed, the fixture body is input into the unloading buffer area and the fixture state is switched to the unloading state. During this process, the product's position is limited by the limiting components in the fixture body, and a supporting state is formed by the support points, ensuring the product's stability before entering the cleaning structure. During cleaning, the cleaning medium acts on the product through the hollow structure of the product placement area, thereby achieving the cleaning treatment of the product surface. After the cleaning structure completes the current cleaning cycle, the fixture body is output from the cleaning structure and input into the unloading buffer area. At the same time, the fixture body's fixture state is switched to the unloading state, so that the fixture body enters the unloading preparation stage.

[0056] S303. When the fixture is in the unloading state, the fixture body is aligned with the unloading station. The unloading station uses the opening auxiliary structure to disengage the pressing component from the holding component to complete the unloading, and switches the fixture state of the fixture body to the loading state.

[0057] The unloading station, through its structural cooperation with the main body of the fixture, releases the pressure on the product by disengaging the pressing component from its holding state, thereby allowing the product to be removed from the product placement area.

[0058] After the product unloading is completed, the fixture body is switched to the loading state, so that the fixture body re-enters the loading preparation process, thereby realizing the cyclical use of the fixture body in the cleaning system.

[0059] In this embodiment, by controlling the switching of the fixture state, a state-driven process switching mechanism is formed between loading, cleaning and unloading of the fixture body, so that the cleaning process can be coordinated with the fixture structure, thereby improving the continuity and stability of the overall automated operation.

[0060] Please see Figures 4a to 4b This application provides another embodiment of a cleaning method for a cleaning fixture structure of board-level packaged products, which includes: S401. Obtain the station status, and confirm the fixture status of the fixture body based on the station status. The fixture status includes loading status and unloading status. Step S401 in this embodiment is similar to step S301 in the previous embodiment, and will not be described in detail here.

[0061] S402. When the fixture is in the loading state, align the fixture body with the loading station. After the fixture body 1 is transported to the loading area, the fixture body 1 is aligned by the positioning structure in the loading station.

[0062] Specifically, the loading station is equipped with a positioning component that matches the outer frame of the fixture body 1. During the conveying process, the fixture body 1 contacts the positioning component, causing its position in the planar direction to coincide with the reference position of the loading station. At the same time, the bottom of the fixture body 1 contacts the support surface of the loading station, thereby forming a reference positioning in the height direction.

[0063] During this alignment process, the through hole (opening auxiliary structure 7) on the main body of the fixture 1 forms a positional correspondence with the lifting mechanism in the loading station, providing structural alignment conditions for the subsequent opening of the pressing component 2.

[0064] S403. The pressing component is disengaged from the holding component and put into the open state by means of the opening auxiliary structure in conjunction with the opening mechanism built into the feeding station; After alignment is completed, the opening mechanism in the loading station is activated. This opening mechanism includes multiple lifting components that are positioned corresponding to the location of the pressing component 2.

[0065] The lifting component rises vertically and passes through the through hole (opening auxiliary structure 7) on the main body 1 of the fixture. The upper end of the lifting component contacts the lower force-bearing position of the pressing component 2. As the lifting component continues to rise, the pressing component 2 overcomes the magnetic attraction force of the retaining component 6 and flips upward around its connection position, thereby disengaging from the pressing state and entering the open state.

[0066] Since the through holes and the pressing components 2 are set in a one-to-one correspondence, the lifting component can accurately act on the corresponding pressing components 2, so that the four pressing components 2 open synchronously, thereby forming a complete open space above the product placement area.

[0067] S404. Place the product in the product placement area according to the open state, and make the product limited by the limiting member and supported by the support point; After the pressure-covering component 2 is in the open state, place the board-level packaged product in the product placement area.

[0068] During placement, the product first enters the area enclosed by the limiting member 5. The limiting member 5 consists of multiple protrusions distributed along the periphery, with spacing matching the product's shape. This allows the product to be gradually constrained by the edges of the limiting member 5 during its descent, thereby automatically guiding the product into the predetermined position.

[0069] As the product continues to fall, its bottom gradually comes into contact with multiple support points 4. The support points 4 are cone-shaped structures, with their tops forming fulcrums. The product makes multi-point contact with the fulcrums, thus achieving initial support for the product.

[0070] Meanwhile, the reinforcing rib 3 is located in the middle of the product placement area, and the area above it does not form a continuous support surface, thus ensuring that the product is mainly supported by the support point 4, keeping the bottom of the product suspended.

[0071] S405. Determine the support state based on the contact state between the product and the support point; After the product is placed, the contact between the product and support point 4 is assessed to confirm whether the product is in a stable supporting state.

[0072] Specifically, the positional distribution of the product in the height direction can be obtained through the detection device at the loading station. For example, by detecting the height values ​​of multiple positions of the product, it can be determined whether the product is evenly in contact with multiple support points 4; or by detecting the local stress on the product, it can be determined whether there is a state of non-contact or tilting.

[0073] When the product fails to make contact with the preset number of support points 4, it is determined that the support state is abnormal. At this time, it can be corrected by adjusting the product position or repositioning it. When the product makes stable contact with multiple support points 4 and the overall posture of the product meets the flatness requirements, it is determined that the support state is normal.

[0074] The contact status between the product and the support point is obtained by detecting the height parameters of the product at multiple preset detection points, each detection point corresponding to the distribution position of the support point; when the height difference between the detection point and the support point is within a preset range, it is determined that the detection point and the corresponding support point are in contact.

[0075] The support state is determined based on the following parameters: the number of contacts between the product and the support points, the height difference distribution of each detection point, and the offset of the product relative to the limiting component; among them, when the number of contacts reaches a preset number and the height difference is not greater than a preset threshold, the product is determined to be in a stable support state.

[0076] S406. When the supporting state matches the preset state, a pressing signal is output; After the support status is determined to be normal, the current support status is matched with the preset support conditions.

[0077] The preset support conditions include at least the following: the number of contacts between the product and support point 4 reaches a set value; the product as a whole does not tilt or lift; and the product edge is within the range defined by the limiting member 5. When the above conditions are met, a pressing signal is generated to trigger the closing action of the pressing component 2. The preset state includes the following conditions: the entire edge of the product is within the range enclosed by the limiting member, the product makes contact at at least three or more support points, and the height difference between the detection points of the product is less than the preset flatness threshold.

[0078] S407. The pressing component is kept in a pressing state by the retaining component according to the pressing signal; After the pressing signal is generated, the opening mechanism in the loading station descends, and the lifting part disengages from the pressing assembly 2.

[0079] The pressing component 2 flips downward under its own weight or with external assistance and gradually approaches the fixture body 1. When the pressing component 2 comes into contact with the magnetic attraction component on the fixture body 1, the magnetic attraction component generates an adsorption effect, so that the pressing component 2 is stably held in the pressing position.

[0080] In this state, the pressing components 2 act on the four corners of the product, applying downward pressing force to the corners of the product; at the same time, the bottom of the product is supported by the support points 4, and the edges are restricted by the limiting components 5, so that the product is simultaneously supported by the support points, restricted by the limiting components, and pressed by the pressing components, forming multiple constraints on the product.

[0081] S408. According to the pressing state, the fixture body carrying the product is fed into the cleaning mechanism for cleaning. After the pressing assembly 2 completes closure and maintains the pressing state, the fixture body 1 is transported to the cleaning mechanism.

[0082] During the cleaning process, because the product placement area has a hollow structure and support point 4 elevates the product, a flow space is created beneath the product, allowing the cleaning medium to pass through from below and act on the bottom surface of the product. Simultaneously, the top of the product is directly exposed to the cleaning environment, enabling the cleaning medium to act on the product from both above and below.

[0083] Under the pressure of the pressing component 2, the product's edges and corners are restricted, preventing warping caused by the impact of the cleaning fluid and temperature changes; under the support of the support point 4, the product is subjected to uniform force, thus maintaining a stable state throughout the cleaning process.

[0084] S409. Obtain feedback on the product cleaning effect and the working status of the cleaning mechanism; After the fixture body 1 enters the cleaning mechanism, the cleaning mechanism performs a cyclic cleaning process on the product. During the cleaning process, the cleaning effect feedback of the product is obtained through the detection unit within the cleaning mechanism, which also acquires the current working status of the cleaning mechanism. The cleaning effect feedback is obtained through a detection unit located at the exit of the cleaning mechanism. This detection unit is used to acquire information on the residue distribution on the product surface, the contamination status of the product edge areas, and the cleaning coverage status of the product's bottom surface. The cleaning result is determined based on the degree of matching between the residue distribution information and preset cleaning standards. These preset cleaning standards include a residue area percentage threshold, a local residue continuous area threshold, and a bottom surface cleaning coverage rate threshold.

[0085] The cleaning effect feedback can be obtained through a detection device installed at the exit of the cleaning mechanism. For example, a visual inspection device can identify the residue on the product surface, or a sensor can detect the degree of contaminant residue on the product surface. The working status of the cleaning mechanism is used to characterize whether the current cleaning process is in progress or has completed the current cleaning cycle.

[0086] S410. When the working status of the cleaning mechanism indicates that the current cleaning cycle is completed, the cleaning result is determined based on the product cleaning effect feedback. When the working status of the cleaning mechanism indicates the end of the current cleaning cycle, the obtained cleaning effect feedback is processed to determine the cleaning result of the product.

[0087] Specifically, the detected cleaning results are compared with preset cleaning standards to determine whether there are residual contamination areas, uncleaned areas, or uneven cleaning on the product surface, thus obtaining the cleaning result. This cleaning result is used to characterize whether the current product meets the predetermined cleaning quality requirements.

[0088] S411. When the cleaning result does not meet the preset index, control the fixture body to re-enter the cleaning mechanism, so that the cleaning medium acts on the product again through the hollow structure of the product placement area, and record the number of cleaning times. If the cleaning results do not meet the preset indicators, it is determined that the current cleaning effect is insufficient and supplementary cleaning is required.

[0089] In this case, the control conveying mechanism re-introduces the fixture body 1 into the cleaning mechanism, causing the fixture body 1 to re-enter the cleaning path. Since the product is placed in the product placement area, and the product placement area has a hollow structure, and the support point 4 raises the product, a flow space is formed at the bottom of the product. During the re-cleaning process, the cleaning medium can act on the product from both the top and bottom sides, thereby improving the cleaning effect.

[0090] Each time the product re-enters the cleaning system, the number of cleaning cycles is recorded to determine whether the maximum permissible number of cleaning cycles has been reached. The planning of supplementary cleaning paths is based on the distribution of non-compliant areas on the product. When non-compliant areas are concentrated at the product edge, supplementary cleaning paths targeting these edge areas are executed first. When non-compliant areas are concentrated on the product bottom surface, the cleaning medium is directed to act on the bottom surface through the perforated structure of the product placement area. When non-compliant areas are distributed across multiple areas, a complete cleaning path is executed.

[0091] After each supplementary cleaning is completed, product cleaning effect feedback is obtained, the cleaning result is re-determined based on the cleaning effect feedback, and a decision is made on whether to continue the supplementary cleaning process based on the re-determined cleaning result.

[0092] S412. When the number of cleaning cycles exceeds the preset number, a warning message is generated and the cleaning process is paused.

[0093] During the supplementary cleaning process, the number of cleaning cycles is continuously accumulated and recorded. When the number of cleaning cycles exceeds the preset number, the current fixture body is marked as an abnormal fixture, and the abnormal information is sent to the control terminal for manual intervention or subsequent processing.

[0094] When the number of cleaning cycles exceeds a preset threshold, an abnormality is determined in the current product or fixture, such as severe contamination or cleaning failure. A warning message is then generated, and the cleaning process is paused.

[0095] Warning messages can be sent to the control terminal or operator interface to indicate abnormal conditions, thereby avoiding resource waste or product damage caused by continuous repeated cleaning.

[0096] S413. When the cleaning result meets the preset index, input the material feeding buffer after cleaning is completed.

[0097] When the cleaning results meet the preset indicators, the current product is determined to have completed the cleaning process. At this time, the fixture body 1 is output from the cleaning mechanism via the conveying mechanism and transported to the unloading buffer area. Since the product is still held by the pressing component 2 and supported by the support point 4 in the fixture body 1, the product remains stable during the conveying process and does not undergo displacement or warping.

[0098] During this process, the fixture body 1 maintains the pressing state of the pressing component 2, so that the product remains in a stable constrained state within the buffer area, thereby avoiding positional displacement or warping due to vibration or accumulation during the waiting process for unloading.

[0099] By setting up a buffer zone, the main body 1 of the fixture after cleaning can be decoupled from the unloading station, thus achieving buffering between the cleaning cycle and the unloading cycle.

[0100] S414. When the fixture is in the unloading state, select the target fixture body from the unloading buffer and output a release command according to the buffer state of the unloading buffer and the unloading station state. When jig body 1 is in the unloading state, the jig to be unloaded is selected based on the arrangement of jig bodies 1 in the unloading buffer area and the idle status of the unloading station. The selection of the target jig body is based on the arrangement order of the jig bodies in the buffer area, the time of entering the buffer area, and the current cycle of the unloading station. When there are multiple candidate jig bodies, the jig body with the earliest entry time or the longest waiting time is selected first.

[0101] Specifically, multiple fixture bodies 1 can be arranged along the conveying direction within the unloading buffer area. By detecting the position or queuing order of each fixture body 1 and considering whether the unloading station currently has the conditions for material retrieval, the target fixture body 1 is determined. After determining the target, a release command is output, enabling the fixture body 1 at the corresponding position to be conveyed to the unloading station.

[0102] S415. According to the release command, the target fixture body is transported to the unloading station and the fixture body is aligned with the reference position of the unloading station. Under the action of the release command, the conveying mechanism transports the target fixture body 1 from the unloading buffer area to the unloading station.

[0103] After being transported to the unloading station, the fixture body 1 is aligned in position by the positioning structure of the unloading station. Specifically, the outer frame of the fixture body 1 contacts the positioning component of the unloading station, so that the fixture body 1 is consistent with the reference position of the unloading station in the planar direction, and at the same time forms a stable contact with the support surface of the unloading station in the height direction.

[0104] During this alignment process, the through hole (opening auxiliary structure 7) on the main body 1 of the fixture is aligned with the opening mechanism in the unloading station, providing a structural correspondence for the subsequent opening of the pressing component 2.

[0105] S416. The pressing component is disengaged from the retaining component and put into the open state by means of the opening auxiliary structure and the opening mechanism. After the fixture body 1 is aligned, the opening mechanism in the unloading station is activated.

[0106] The lifting member in the opening mechanism rises vertically and passes through the through hole on the fixture body 1, contacting the lower force-bearing position of the pressing assembly 2. As the lifting member continues to rise, the pressing assembly 2 overcomes the magnetic attraction of the retaining assembly 6 and flips around the connection position, thereby switching from the pressing state to the opening state.

[0107] This process releases the pressure of the pressing component 2 on the corners of the product, providing space for the product to be removed.

[0108] S417. Obtain the presence status of the product in the product placement area and the open status of the pressing component; After the pressing component 2 is in the open state, the presence of the product in the product placement area and the opening status of the pressing component 2 are detected. The opening status of the pressing component is determined by detecting the stroke position of the opening mechanism or the angular position of the pressing component. When the pressing component has not reached the preset opening position, it is determined to be in a partially open state.

[0109] Specifically, the product status can be obtained through a detection device installed at the unloading station, such as visual recognition or sensors to detect whether the product is still located on support point 4. At the same time, the position of the pressing component 2 is detected to confirm whether it has completely detached from the pressing position and is in the open state.

[0110] This step is used to confirm that the product is ready for removal, and to avoid performing material removal operations when the pressing components are not fully opened.

[0111] S418. When the product is present and the pressing component is in the open state, output a material picking permission signal; When the test results show that the product is still in the product placement area and the pressing component 2 is in the open state, it is determined that the current material picking conditions are met.

[0112] When the above conditions are met, a material handling permission signal is output. This signal is used to notify the material handling mechanism in the unloading station to perform the product removal action, thereby ensuring that the material handling process proceeds under the premise that the structural release conditions are met.

[0113] S419. Take the product out of the product placement area according to the material picking permission signal, and switch the fixture state of the fixture body to the material feeding state.

[0114] Upon receiving the material handling permission signal, the material handling mechanism in the unloading station performs the product removal operation. After the product is removed, its presence in the product placement area is checked again to confirm that the product has completely left. If the detection result still shows that the product is present, it is determined to be an unloading abnormality and the jig state switching is prohibited.

[0115] Specifically, the picking mechanism lifts the product from support point 4, freeing it from the constraints of support point 4 and limiting member 5, and removes it from the product placement area. During the removal process, since the pressing component 2 is already open, the product's corners are no longer pressed, thus avoiding interference during removal.

[0116] Once it is detected that the product has completely left the product placement area, the fixture body 1 is switched to the loading state, so that the fixture body 1 re-enters the loading process and completes a complete cleaning cycle.

[0117] In this embodiment, by selecting and scheduling the state of the fixture body in the unloading buffer during the unloading stage, and combining the alignment of the unloading station, the opening of the pressing component, and the determination of the material picking conditions, the pressing component is first released during the unloading process, and then the product's existence state and the opening state of the pressing component are confirmed. The material picking operation is then performed when the material picking conditions are met, thereby avoiding the material picking operation when the pressing component is not fully opened or the product state is abnormal, thus improving the reliability of the unloading process.

[0118] Meanwhile, by coordinating the opening of the auxiliary structure and the opening mechanism of the unloading station, the pressing component can be automatically opened without relying on the internal drive structure of the fixture, thereby simplifying the fixture structure while ensuring the stability and consistency of the opening action of the pressing component.

[0119] By jointly judging the product's existing state and the opening state of the pressing components, and only outputting a material picking permission signal when the conditions are met, the material picking action has a clear execution premise, avoiding the product being forcibly removed in a state where the pressing is not fully released, thereby reducing the risk of product edge damage or deformation.

[0120] By introducing the cleaned fixture body into the unloading buffer area and releasing it in an orderly manner based on the buffer state, a buffer transition is formed between the cleaning process and the unloading process, thereby avoiding congestion at the unloading station or mismatch in cycle time, and improving the continuity and stability of the overall cleaning process.

[0121] This application also relates to a computer-readable storage medium on which a program is stored, characterized in that, when the program is run on a computer, it causes the computer to perform any of the methods described above.

[0122] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0123] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between apparatuses or units through some interfaces, and may be electrical, mechanical, or other forms.

[0124] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0125] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0126] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

Claims

1. A cleaning method for a cleaning fixture structure of a board-level packaged product, characterized in that, The method is applied to a cleaning fixture structure for board-level packaged products, the structure comprising: Fixture body and pressing components; The product placement area is formed in the middle of the main body of the fixture. The product placement area has a hollow structure and is provided with reinforcing ribs. The reinforcing ribs are connected to the two opposite sides of the main body of the fixture. Support points and limiting components are distributed inside the main body of the fixture. The pressing components are disposed at the four corners of the fixture body, and a retaining component is disposed between the pressing components and the fixture body. The retaining component is used to keep the pressing components in a pressing state, and the fixture body is provided with an opening auxiliary structure for releasing the pressing components from the retaining state. The jig body has reinforcing blocks around its four sides, and the reinforcing blocks are detachably connected to the jig body. The method includes: Obtain the workstation status, and confirm the fixture status of the fixture body based on the workstation status. The fixture status includes loading status and unloading status. When the fixture is in the loading state, the product is assembled into the product placement area, and after being limited by the limiting component and supported by the support point, it is input into the cleaning structure, so that the cleaning medium acts on the product through the hollow structure of the product placement area. When the cleaning structure feedback that the cleaning is completed, the fixture body is input into the unloading buffer area and the fixture state is switched to the unloading state. When the fixture is in the unloading state, the fixture body is aligned with the unloading station. The unloading station uses the opening auxiliary structure to disengage the pressing component from the holding component to complete the unloading, and then switches the fixture state of the fixture body to the loading state.

2. The method according to claim 1, characterized in that, The retaining component includes magnetic suction kits respectively disposed on the opposing surfaces of the pressing component and the fixture body.

3. The method according to claim 1, characterized in that, The opening auxiliary structure is a through hole, which is aligned with the pressing component so that the external lifting member passes through and lifts the pressing component.

4. The method according to claim 1, characterized in that, The limiting members are distributed along the inner periphery of the product placement area. The limiting members are used to circumferentially limit the product placed in the product placement area, and an assembly gap is reserved between the limiting members and the product.

5. The method according to claim 1, characterized in that, The fixture body has fixing holes on its outer side, and the fixing holes, together with the fixing components, fix the reinforcing block to the fixture body.

6. The method according to claim 1, characterized in that, The fixture body is provided with an identification structure, which is used to identify the identity information of the fixture body.

7. The method according to claim 1, characterized in that, The support point is located in the product placement area, and the fulcrum of the support point is higher than the upper surface of the fixture body.

8. The method according to any one of claims 1 to 7, characterized in that, When the fixture is in the loading state, the product is assembled into the product placement area, limited by the limiting component, supported by the support point, and then input into the cleaning structure. The cleaning medium acts on the product through the hollow structure of the product placement area. When the cleaning structure reports that cleaning is complete, the fixture body is input into the unloading buffer area, and the fixture state is switched to the unloading state. This includes: When the fixture is in the loading state, align the fixture body with the loading station; The opening auxiliary structure, in conjunction with the opening mechanism built into the feeding station, allows the pressing component to detach from the holding component and be in the open state. According to the open state, the product is placed in the product placement area, and the product is limited by the limiting member and supported by the support point; The support state is determined based on the contact state between the product and the support points; When the supporting state matches the preset state, a pressing signal is output; The pressing component is kept in a pressing state by the retaining component according to the pressing signal; According to the pressing state, the fixture body carrying the product is input into the cleaning mechanism for cleaning, and after cleaning, it is input into the unloading buffer area.

9. The method according to claim 8, characterized in that, Before inputting the material into the unloading buffer area after cleaning, the method further includes: Obtain feedback on product cleaning effectiveness and the working status of the cleaning facility; When the working status of the cleaning mechanism indicates that the current cleaning cycle is completed, the cleaning result is determined based on the product cleaning effect feedback. When the cleaning result meets the preset index, the main body of the fixture is input into the unloading buffer area; When the cleaning result does not meet the preset index, the fixture body is controlled to re-enter the cleaning mechanism, so that the cleaning medium acts on the product again through the hollow structure of the product placement area, and the number of cleaning times is recorded. When the number of cleaning cycles exceeds a preset number, a warning message is generated and the cleaning process is paused.

10. The method according to any one of claims 1 to 7, characterized in that, When the fixture is in the unloading state, the fixture body is aligned with the unloading station. The unloading station uses the opening auxiliary structure to disengage the pressing component from the holding component to complete the unloading, and then switches the fixture state of the fixture body to the loading state, including: When the fixture is in the unloading state, the target fixture body is selected from the unloading buffer and a release command is output according to the buffer state of the unloading buffer and the unloading station state. According to the release command, the target fixture body is transported to the unloading station and aligned with the reference position of the unloading station; The opening auxiliary structure, in conjunction with the opening mechanism, allows the pressing component to detach from the retaining component and be in the open state; The presence status of the product in the product placement area and the open status of the pressing component are obtained; When the product is present and the pressing component is in the open state, a material picking permission signal is output; The product is removed from the product placement area according to the material handling permission signal, and the fixture status of the fixture body is switched to the loading status.

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