A panel protection clamp and a panel spraying device
Patent Information
- Application Number
- CN202522429571.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-17
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-17
AI Technical Summary
人工涂刷时，极易出现漏刷（未覆盖需防护区域）或误刷（防护涂料意外接触敏感防护区）的情况，导致芯体小板缺陷率提高
现有技术中多采用人工方式涂刷三防漆或胶水等防护层，需通过毛刷进行操作，由于芯体小板尺寸小，在操作时容易漏刷或意外刷到敏感防护区，造成产品的缺陷率增加；本申请通过基板上设置的定位槽精准固定拼板，遮挡部与敏感防护区一一对应，划分芯体小板上的涂刷区域与防护区域，提升防护涂料涂刷过程的覆盖率和准确性。同时，遮挡部完全覆盖并贴合敏感防护区，还可以阻止防护涂料滴落在敏感防护区上或毛刷接触敏感防护区。
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Figure CN224912626U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spraying technology, and in particular to a panel protective clamp and panel spraying equipment. Background Technology
[0002] In the manufacturing process of electronic components, PCB panels are substrates integrated from multiple core boards. To protect these core boards from environmental influences, protective layers such as conformal coatings and adhesives are typically applied to their non-sensitive areas. However, current technologies often rely on manual operation for applying these protective layers to the panels, where operators use a brush to apply the protective coating to the target areas of the core boards.
[0003] Because of the small size of the core board, and the need to distinguish between the coating area and sensitive protection areas (such as some special electrical components), manual coating is prone to omissions (failure to cover the protected area) or accidental application (unintentional contact of the protective coating with the sensitive protection area), leading to an increased defect rate of the core board.
[0004] To address the aforementioned issues, a protective clamp is needed that can accurately position the panels, distinguish between the coating area and the sensitive protection area, and reliably isolate the sensitive protection area, thereby improving the accuracy of protective coating application. Utility Model Content
[0005] This utility model provides a panel protection clamp and panel spraying equipment to solve the problems in the prior art.
[0006] This utility model embodiment adopts the following technical solution: a panel protection clamp for protecting the core panels on a panel, comprising: a base plate with a positioning groove, the shape of which is adapted to the panel to accommodate the panel and restrict its movement in the plane of the base plate; at least one protective member mounted on the base plate via a movable connection structure, the protective member being configured to switch between a first position and a second position relative to the base plate; each protective member having at least one shielding portion; at least one locking member corresponding to each protective member and configured to lock the corresponding protective member to the base plate when the protective member is in the second position; wherein, when several protective members are in the second position, the shielding portions correspond one-to-one with the core panels, and each shielding portion covers and adheres to the sensitive protection area of the corresponding core panel to completely cover the sensitive protection area; when the protective member is in the first position, the shielding portion is separated from the sensitive protection area.
[0007] Preferably, the bottom of the positioning groove is provided with a through groove that penetrates the substrate; when the panel is located in the positioning groove, the projections of several core small boards on the plane perpendicular to the substrate all fall into the through groove.
[0008] Preferably, the movable connection structure is configured as a hinge, and the protective component is rotatably connected to the base plate via the hinge.
[0009] Preferably, the protective component further includes a main body and several connecting rods, and the hinge is installed on the main body; each protective component is fixedly connected to the main body through one of the connecting rods; when the protective component is in the second position, the main body is attached to the substrate.
[0010] Preferably, the protective components are configured in two sets and arranged opposite to each other.
[0011] Preferably, the locking element is configured as a pneumatic clamping cylinder.
[0012] A panel spraying device includes: a frame; a protective clamp mounted on the frame for positioning and clamping panels to be sprayed; and a multi-axis moving platform mounted on the frame, with at least one nozzle fixedly connected to the execution end of the multi-axis moving platform, the spraying direction of the nozzle facing the positioning groove area of the protective clamp; wherein the multi-axis moving platform is configured to drive the nozzle to move at least along the X-axis, Y-axis and Z-axis directions to perform full-coverage spraying of the surface of the panel to be sprayed.
[0013] Preferably, the spraying equipment further includes: a slide rail, at least two of which are fixedly mounted on the frame, the actuating end of the slide rail being configured to reciprocate along the extension direction of the slide rail; and a flipping mechanism mounted on the actuating end of the slide rail, the power output end of the flipping mechanism being connected to the protective clamp, and the flipping mechanism being configured to drive the protective clamp to flip so that the back or front of the panel held by the protective clamp faces the spray head.
[0014] Preferably, the flipping mechanism includes: a bearing seat, fixedly installed on the actuating end of one of the slide rails; a first rotating shaft, one end of which is rotatably installed on the bearing seat, and the other end of which is fixedly connected to the cylinder body of one of the pneumatic clamping cylinders; a rotary drive source, fixedly installed on the actuating end of another slide rail; and a second rotating shaft, one end of which is drively connected to the output end of the rotary drive source, and the other end of which is fixedly connected to the cylinder body of another pneumatic clamping cylinder, wherein the first rotating shaft and the second rotating shaft are coaxially arranged and located on opposite sides of the protective clamp.
[0015] Preferably, the frame is also equipped with an ultraviolet lamp, and the nozzle is configured for spraying UV adhesive.
[0016] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects: Existing technologies often employ manual methods to apply conformal coatings or adhesives, requiring the use of brushes. Due to the small size of the core board, it is easy to miss areas or accidentally brush sensitive protected areas, increasing the product defect rate. This application precisely fixes the panels using positioning grooves on the substrate, with the shielding portion corresponding one-to-one with the sensitive protected areas, dividing the coating area and the protected area on the core board, thus improving the coverage and accuracy of the protective coating application process. Simultaneously, the shielding portion completely covers and adheres to the sensitive protected areas, preventing protective coating from dripping onto these areas or the brush from contacting them. Attached Figure Description
[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a perspective view of the panel spraying equipment of this utility model; Figure 2 This is a perspective view of the panel protective clamp of this utility model; Figure 3 This is a schematic diagram of the structure of the locking component and the protective component of this utility model when they are separated; Figure 4 This is a perspective view of the assembly panel of this utility model; Figure 5 This is a schematic diagram of the structure of the protective component of this utility model when it is in the first position; Figure 6 This is a partial structural schematic diagram of the panel spraying equipment of this utility model.
[0018] Figure Labels 1-Panel; 11-Core board; 12-Sensitive protection area; 2-Substrate; 21-Positioning groove; 22-Through groove; 3-Protective component; 31-Shielding part; 32-Main body; 33-Connecting rod; 4-Locking element; 5-Hinges; 6-Frame; 61-Slide rail; 62-UV lamp; 7- Multi-axis moving platform; 8-Sprayer head; 9-Tilting mechanism; 91-Bearing housing; 92-First rotating shaft; 93-Rotation drive source; 94-Second rotating shaft. Detailed Implementation
[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0020] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0021] The core board 11 is the core component of the temperature and humidity probe, integrating a miniature sensor, circuitry, and other precision structures. It is small in size and is a separate component ultimately assembled into the temperature and humidity probe. The panel 1 is a temporary carrier during the production and processing of the core board 11, assembled from several core boards 11 through process integration (such as frame connection). Figure 4 This is used to realize the centralized processing of multiple core boards 11. After processing, they need to be separated from the panel 1 into independent core boards 11.
[0022] Reference Figures 1 to 6 As shown, this utility model embodiment provides a panel protection clamp for protecting the core board 11 on the panel 1, including a base plate 2, at least one protective member 3 and at least one locking member 4.
[0023] The substrate 2 is provided with a positioning groove 21, the shape of which is adapted to the panel 1 to accommodate the panel 1 and restrict the movement of the panel 1 in the plane direction of the substrate 2; at least one protective member 3 is mounted on the substrate 2 through a movable connection structure, and the protective member 3 is configured to switch between a first position and a second position relative to the substrate 2; each protective member 3 is provided with at least one shielding part 31; a locking member 4 corresponds one-to-one with the protective member 3 and is configured to lock the corresponding protective member 3 to the substrate 2 when the protective member 3 is in the second position; wherein, when several protective members 3 are in the second position, the shielding part 31 corresponds one-to-one with the core board 11, and each shielding part 31 covers and adheres to the sensitive protection area 12 of the corresponding core board 11 to completely cover the sensitive protection area 12; when the protective member 3 is in the first position, the shielding part 31 is separated from the sensitive protection area 12.
[0024] In actual production, the panel 1 to be processed is placed in the positioning groove 21 of the substrate 2. The positioning groove 21 is used to restrict the movement of the panel 1 in the planar direction, ensuring that the core board 11 is fixed in position and avoiding misalignment of the shielding part 31 due to the shaking or position movement of the panel 1.
[0025] Initial state (i.e., protective component 3 is in the first position, such as...) Figure 5): The protective component 3 is in a position separated from the panel 1 through a movable connection structure (such as a hinge 5, through which the protective component 3 is rotatably connected to the base plate 2). At this time, the panel 1 can be placed into the positioning groove 21 or taken out from the positioning groove 21.
[0026] Working state (i.e., protective component 3 is in the second position, such as...) Figure 2 ): Manually drive the protective component 3 to move to the second position (if necessary, it can also be driven by a mechanical structure) so that the shielding part 31 on the protective component 3 corresponds one-to-one with the sensitive protection area 12 of the core board 11 and completely covers and fits the sensitive protection area 12 (such as sensors, circuits, etc. on the core board 11).
[0027] When the protective component 3 is in the second position, the locking component 4 locks the protective component 3 onto the substrate 2 to prevent displacement during the coating process and ensure that the shielding part 31 stably adheres to the sensitive protection area 12. In some practical applications, the locking component 4 is configured as a pneumatic clamping cylinder. As prior art, this pneumatic clamping cylinder can control the clamping and disengaging actions of its actuator through an air source. A clamping cylinder of model MHL2-20D can be used as a reference. After protection is completed, the non-sensitive protection areas of the panel 1 (such as areas requiring conformal coating or areas requiring adhesive coating) are manually or automatically coated. After coating is completed, the locking component 4 is unlocked, the protective component 3 is switched back to the first position, and the panel 1 is removed for subsequent processing.
[0028] Currently, existing technologies mostly employ manual methods to apply protective layers such as conformal coatings or adhesives, requiring the use of a brush. Due to the small size of the core board 11, it is easy to miss areas or accidentally brush sensitive protection areas 12 during operation, increasing the product defect rate. This application precisely fixes the panel 1 using positioning grooves 21 on the substrate 2, with the shielding part 31 corresponding one-to-one with the sensitive protection areas 12, clearly delineating the coating area and protection area on the core board 11, thus improving the coverage and accuracy of the protective coating (conformal coating or adhesive, etc.) application process. At the same time, the shielding part 31 completely covers and adheres to the sensitive protection areas 12, preventing protective coating from dripping onto the sensitive protection areas or the brush from contacting the sensitive protection areas.
[0029] In some practical applications, considering the presence of protruding structures (such as solder joints or other positioning protrusions) on the back of the core board 11 or panel 1, the bottom of the traditional closed positioning groove 21 may interfere with the protruding structures, causing the panel 1 to be unable to be placed flat into the positioning groove 21 or to be damaged by pressure. Therefore, referring to Figure 5As shown, a through slot 22 penetrating the substrate 2 is provided at the bottom of the positioning groove 21; when the panel 1 is located in the positioning groove 21, the projections of several core small boards 11 on the plane perpendicular to the substrate 2 all fall on the through slot 22. The through slot 22 provides vertical accommodating space for the protruding structure on the back of the panel 1, ensuring that the panel 1 can be flat and fit snugly against the bottom of the positioning groove 21 after being placed in it.
[0030] In addition, some models of core panels 11 may require protective coating on both sides. Traditional fixtures require flipping the panel 1 before processing the back side, which is cumbersome and can easily damage the already coated front paint layer. The through slot 22 completely exposes the back side of the panel 1. While the protective part 3 covers the sensitive area on the front side, the back side of the panel 1 can be painted directly through the through slot 22 without removing the panel 1.
[0031] In some practical applications, refer to Figure 2 As shown, the protective component 3 also includes a main body 32 and several connecting rods 33, and the hinge 5 is installed on the main body 32; each protective component 3 is fixedly connected to the main body 32 through one of the connecting rods 33; when the protective component 3 is in the second position, the main body 32 is attached to the substrate 2.
[0032] When the protective component 3 is in the second position, the main body 32 is tightly fitted to the surface of the substrate 2 to form a planar limit, ensuring the positional accuracy of all connecting rods 33 and shielding parts 31, and preventing excessive pressure from the shielding parts 31 on the sensitive protection area 12 of the core board 11, which could cause damage. The connecting rods 33 are designed to minimize the obstruction above the core board 11, ensuring that the coating area of the protective coating meets the standard. If a large-area shielding structure is used for shielding protection, although it can effectively protect the sensitive protection area 12, it will also prevent the coating area of the core board 11 from being fully coated with protective coating.
[0033] In actual production, since the core panels 11 on the panel 1 have two rows and are relatively symmetrically distributed, the protective components 3 are configured in two sets and are arranged opposite to each other. The two sets of protective components 3 correspond to the two rows of core panels 11 respectively, so as to protect the core panels 11 at the corresponding positions.
[0034] Reference Figure 1 , Figure 2 and Figure 6As shown, a panel spraying device includes a frame 6, a multi-axis moving platform 7, and a protective clamp as described above. The protective clamp is mounted on the frame 6 and is used to position and clamp the panel 1 to be sprayed. The multi-axis moving platform 7 is mounted on the frame 6, and at least one nozzle 8 is fixedly connected to the execution end of the multi-axis moving platform 7. The spraying direction of the nozzle is towards the positioning groove 21 area of the protective clamp. The multi-axis moving platform 7 is configured to drive the nozzle to move at least along the X-axis, Y-axis, and Z-axis directions to perform full-coverage spraying on the surface of the panel 1 to be sprayed.
[0035] During actual spraying of panel 1, the temperature and humidity probe panel 1 to be sprayed is placed into the positioning groove 21 of the protective fixture. The positioning groove 21 restricts the movement of panel 1, ensuring that the position of the core board 11 and the shielding part 31 are aligned. The protective part 3 is manually rotated, that is, the protective part 3 is switched from the first position to the second position, so that the shielding part 31 corresponds one-to-one with the sensitive protection area 12 of the core board 11 and is completely attached. Then, the protective part 3 is locked to the substrate 2 by the locking part 4. The X / Y / Z axis movement path of the nozzle ensures that the nozzle covers all areas to be sprayed. The nozzle can be connected to an external pipe to connect to the protective coating, and the protective coating is sprayed out through the nozzle. Specifically, the multi-axis moving platform 7 drives the nozzle to move according to the preset path, and the nozzle sprays conformal paint or glue on the non-sensitive area of panel 1 (i.e., the part outside the area covered by the shielding part 31).
[0036] In some practical applications, the rack 6 is also equipped with an ultraviolet lamp 62 (e.g., Figure 1 This nozzle is configured for spraying UV adhesive. The UV adhesive can solidify in 15-30 seconds under ultraviolet light.
[0037] In some practical applications, refer to Figure 1 and Figure 6 As shown, the spraying equipment also includes a slide rail 61 and a flipping mechanism 9. At least two slide rails 61 are provided, both fixedly mounted on the frame 6. The actuating end of the slide rail 61 is configured to reciprocate along its extension direction. The flipping mechanism 9 is mounted on the actuating end of the slide rail 61. The power output end of the flipping mechanism 9 is connected to the protective clamp, and the flipping mechanism 9 is configured to drive the protective clamp to flip so that the back or front of the panel 1 held by the protective clamp faces the spray head.
[0038] Specifically, the flipping mechanism 9 includes a bearing housing 91, a first rotating shaft 92, a rotary drive source 93, and a second rotating shaft 94. The bearing housing 91 is fixedly installed on the actuating end of one of the slide rails 61; one end of the first rotating shaft 92 is rotatably mounted on the bearing housing 91, and the other end is fixedly connected to the cylinder body of one of the pneumatic clamping cylinders; the rotary drive source 93 (such as a servo motor) is fixedly installed on the actuating end of the other slide rail 61; one end of the second rotating shaft 94 is drively connected to the output end of the rotary drive source 93, and the other end is fixedly connected to the cylinder body of the other pneumatic clamping cylinder, and the first rotating shaft 92 and the second rotating shaft 94 are coaxially arranged and located on opposite sides of the protective clamp.
[0039] In this embodiment, the slide rail 61 drives the flipping mechanism 9 and the protective clamp to move to the loading and unloading area (away from the nozzle). The protective clamp is in the initial state (panel 1 facing up). The panel 1 is manually placed in the positioning groove 21, and the protective component 3 is flipped to cover the sensitive protection. At the same time, two pneumatic clamping cylinders clamp the protective component 3.
[0040] The slide rail 61 drives the actuator to move, sending the protective clamp into the nozzle working area. At this time, the front of panel 1 is aligned with the nozzle, ready for front spraying. After the front of panel 1 is sprayed, the flipping mechanism 9 is activated: the rotary drive source 93 is activated, driving the protective clamp to rotate 180° through the second rotating shaft 94. During the flipping process, the pneumatic clamping cylinder remains locked, and the shielding part 31 always fits against the sensitive area. Then, the back of panel 1 can be sprayed. The nozzle sprays the non-sensitive area on the back of panel 1 according to the preset path, without the need for manual flipping of panel 1. After the front and back of panel 1 are sprayed, the slide rail 61 drives the protective clamp to the fixed area where the ultraviolet lamp 62 is located for UV glue fixing treatment. Then, the slide rail 61 drives the protective clamp to the loading and unloading area. After the protective part 3 is unlocked, panel 1 is manually removed, completing one work cycle.
[0041] In summary, during double-sided spraying of the panels, manual flipping of panel 1 requires machine shutdown and can easily lead to contamination of the already sprayed surfaces. The flipping mechanism 9 mechanically flips panel 1, reducing contamination of the already sprayed areas of the core panel 11 and improving flipping efficiency compared to manual operation. Furthermore, the slide rail 61 allows the protective clamps to move along the frame 6, facilitating the loading and unloading of panel 1 by workers in a safe area and minimizing the health impact on workers from the area where the spray nozzle is located.
[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A panel protection clamp for protecting the core panel (11) on a panel (1), characterized in that, include: The substrate (2) is provided with a positioning groove (21), the shape of which is adapted to the panel (1) to accommodate the panel (1) and restrict the movement of the panel (1) in the plane direction of the substrate (2); At least one protective element (3) is mounted on the substrate (2) via a movable connection structure, the protective element (3) being configured to switch between a first position and a second position relative to the substrate (2); each of the protective elements (3) is provided with at least one shielding portion (31). At least one locking member (4) corresponds one-to-one with the protective member (3) and is configured to lock the corresponding protective member (3) to the substrate (2) when the protective member (3) is in the second position. When several of the protective components (3) are in the second position, the shielding part (31) corresponds one-to-one with the core plate (11), and each shielding part (31) covers and adheres to the sensitive protection area (12) of the corresponding core plate (11) to completely cover the sensitive protection area (12); when the protective component (3) is in the first position, the shielding part (31) is separated from the sensitive protection area (12).
2. The panel protective clamp according to claim 1, characterized in that, The bottom of the positioning groove (21) is provided with a through groove (22) that penetrates the substrate (2); when the panel (1) is located in the positioning groove (21), the projections of several core small boards (11) on the plane perpendicular to the substrate (2) all fall on the through groove (22).
3. The panel protective clamp according to claim 1, characterized in that, The active connection structure is configured as a hinge (5), and the protective component (3) is rotatably connected to the base plate (2) via the hinge (5).
4. A panel protective clamp according to claim 3, characterized in that, The protective component (3) also includes a main body (32) and several connecting rods (33), and the hinge (5) is installed on the main body (32); each protective component (3) is fixedly connected to the main body (32) through one of the connecting rods (33); when the protective component (3) is in the second position, the main body (32) is attached to the substrate (2).
5. A panel protective clamp according to claim 1, characterized in that, The protective component (3) is configured in two sets and is disposed opposite to each other on the substrate (2).
6. A panel protective clamp according to claim 5, characterized in that, The locking element (4) is configured as a pneumatic clamping cylinder.
7. A panel spraying equipment, characterized in that, include: Rack (6); The protective clamp as described in any one of claims 1-6 is mounted on the frame (6) and is used to position and clamp the panel to be sprayed (1). A multi-axis moving platform (7) is mounted on the frame (6). At least one nozzle (8) is fixedly connected to the execution end of the multi-axis moving platform (7). The spraying direction of the nozzle (8) is towards the positioning groove (21) area of the protective clamp. The multi-axis moving platform (7) is configured to drive the nozzle (8) to move at least along the X-axis, Y-axis and Z-axis directions to fully cover the surface of the panel (1) to be coated.
8. The panel spraying equipment according to claim 7, characterized in that, The spraying equipment also includes: At least two slide rails (61) are provided and both are fixedly mounted on the frame (6). The actuating end of the slide rail (61) is configured to reciprocate along the extension direction of the slide rail (61). A flipping mechanism (9) is installed on the execution end of the slide rail (61). The power output end of the flipping mechanism (9) is connected to the protective clamp. The flipping mechanism (9) is configured to drive the protective clamp to flip so that the back or front of the panel (1) held by the protective clamp faces the nozzle (8).
9. A panel spraying equipment according to claim 8, characterized in that, When claim 7 refers to claim 6, the flipping mechanism (9) includes: The bearing housing (91) is fixedly installed at the actuating end of one of the slide rails (61); The first rotating shaft (92) has one end rotatably mounted on the bearing seat (91) and the other end fixedly connected to the cylinder body of one of the pneumatic clamping cylinders; A rotary drive source (93) is fixedly mounted on the actuating end of another slide rail (61); The second rotating shaft (94) has one end connected to the output end of the rotary drive source (93) and the other end fixedly connected to the cylinder body of another pneumatic clamping cylinder. The first rotating shaft (92) and the second rotating shaft (94) are coaxially arranged and located on opposite sides of the protective clamp.
10. A panel spraying equipment according to claim 7, characterized in that, The frame (6) is also equipped with an ultraviolet lamp (62), and the nozzle (8) is configured for spraying UV adhesive.