Impregnation baffle device and impregnation system

Abstract

The embodiment of the invention discloses a dipping baffle device and a dipping system, and the device comprises a bottom plate which comprises a plurality of dipping holes; the at least one adjusting plate is movably connected to the bottom plate and is provided with a fixing hole, and the fixing hole is used for limiting a workpiece to be impregnated; the support is connected with the bottom plate, and the support comprises a fixed cross beam parallel to the bottom plate; one end of the adjusting rod vertically penetrates through the fixed cross beam and is movably connected with the fixed cross beam, a pressing plate is arranged at the end of the adjusting rod, and the pressing plate is used for pressing the workpiece to be impregnated on the adjusting plate. Through hole components of multiple specifications can be compatible, the stability of the dipping process is guaranteed, and therefore the efficiency and consistency of a weldability test are improved.

Description

Technical Field

[0001] This invention relates to the field of weld pool impregnation, and more particularly to an impregnation baffle device and an impregnation system. Background Technology

[0002] With the diversification of electronic component packaging and the continuous improvement of reliability requirements, solderability testing plays a crucial role in electronic system assembly and quality control. Traditional solderability testing methods mainly employ the wetting and weighing method, but this method has limitations in terms of operational complexity and testing accuracy. The solder pool method has gradually replaced the wetting and weighing method, becoming the primary solderability testing method.

[0003] In the solder bath method test, components need to be immersed in solder within 5 minutes after pretreatment, and the leads should be kept perpendicular to the solder surface during the immersion process to ensure that the immersion depth and angle meet the standard requirements. In particular, for through-hole components, the shape and size of their leads vary greatly, so the test clamping device must have good versatility and stability.

[0004] The baffle structures in the existing technology are mostly designed as special baffle structures for a certain component package according to the detailed specifications of the component. However, they are not modular structures and cannot be applied to all standard hole pitch component packages.

[0005] There is currently no effective solution to the problem that existing impregnation devices cannot flexibly fix impregnated components. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides an immersion baffle device and an immersion system. By setting a replaceable adjusting plate to adapt to different workpieces to be immersed, and by using an adjusting rod and a pressure plate to ensure the immersion stability of the workpiece, the invention solves the problem in the prior art that it is not possible to flexibly fix components of different sizes.

[0007] To achieve the above objectives, the present invention provides an immersion baffle device, comprising: a base plate including a plurality of immersion holes; at least one adjusting plate movably connected to the base plate and having a fixing hole for limiting the workpiece to be immersed; a bracket connected to the base plate, the bracket including a fixed crossbeam arranged parallel to the base plate; and an adjusting rod, one end of which passes vertically through the fixed crossbeam and is movably connected to the fixed crossbeam, the end of which is provided with a pressure plate for pressing the workpiece to be immersed onto the adjusting plate.

[0008] Optionally, the base plate is provided with limiting grooves near both sides; the two ends of the adjusting plate are limited by the cooperation of pins with the limiting grooves.

[0009] Alternatively, the adjusting rod may be a threaded rod; the adjusting rod is threadedly connected to the fixed crossbeam.

[0010] Further optionally, the adjustment plate is uniformly provided with a plurality of fixing holes; the diameter of the fixing holes of different adjustment plates is adapted to the pin size of different models of workpieces to be immersed; the distance between the fixing holes of different adjustment plates is adapted to the pin row spacing.

[0011] Optionally, the support includes a primary sub-support and a secondary sub-support; the bottom of the primary sub-support is connected to the base plate, and the top is connected to the secondary sub-support.

[0012] Alternatively, the top of the bracket may be provided with a connection hole.

[0013] Alternatively, the contact surface of the pressure plate may be provided with a soft pad.

[0014] Alternatively, the base plate may be provided with a plurality of impregnation holes arranged side by side.

[0015] Alternatively, the fixed crossbeam can be connected to the bracket via positioning blocks on both sides.

[0016] On the other hand, the present invention also provides an impregnation system, which uses the above-mentioned impregnation baffle device for impregnation control, including: a positioning frame, a stroke control device and a welding tank; the stroke control device is connected to the positioning frame; the movable shaft of the positioning frame is connected to the impregnation baffle device; the welding tank is located directly below the impregnation baffle device.

[0017] The above technical solution has the following beneficial effects: by setting multiple immersion holes side by side on the base plate and cooperating with adjustment plates of different specifications, through-hole components of different sizes can be quickly positioned, thereby avoiding frequent adjustments to height and angle and improving test efficiency; through the pressing action of the adjustment rod and the pressure plate, the components are not affected by buoyancy or vibration during the immersion process, thereby ensuring the consistency of immersion depth and angle; through the stable connection of the bracket, fixed crossbeam and stroke control device, the immersion process remains precise and controllable, thereby ensuring the stability and repeatability of test results. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. 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 the structure of the impregnation baffle device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the impregnation system provided in an embodiment of the present invention.

[0020] Reference numerals: 1-Base plate; 2-Adjusting plate; 3-Support; 301-Primary sub-support; 302-Secondary sub-support; 303-Fixed crossbeam; 4-Adjusting rod; 5-Pin shaft; 10-Positioning frame; 20-Stroke control device; 30-Welding groove; 40-Immersion baffle device. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] To address the problem of difficulty in positioning components of various sizes during impregnation in existing technologies, embodiments of the present invention provide an impregnation baffle device, such as... Figures 1-2 As shown, Figure 1 This is a schematic diagram of the structure of the impregnation baffle device provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the impregnation system provided in an embodiment of the present invention.

[0023] like Figure 1 As shown, the immersion baffle device includes: a base plate 1, which includes a plurality of immersion holes; at least one adjusting plate 2, which is movably connected to the base plate 1 and has a fixing hole for limiting the workpiece to be immersed; a bracket 3, which is connected to the base plate 1 and includes a fixed crossbeam 303 arranged parallel to the base plate 1; and an adjusting rod 4, one end of which passes vertically through the fixed crossbeam 303 and is movably connected to the fixed crossbeam 303. The end of the adjusting rod 4 is provided with a pressure plate for pressing the workpiece to be immersed onto the adjusting plate 2.

[0024] The base plate 1 has multiple immersion holes to provide a through-hole for liquid entry above the surface of the welding tank 30 during immersion, and to cooperate with the fixing holes on the adjusting plate 2. In addition, the base plate 1 also serves as a base to support the other parts.

[0025] Adjustment plate 2 is movably mounted on the support plate unit and can be replaced or adjusted according to the hole spacing and diameter of different components. Adjustment plate 2 has fixing holes; when a component is placed, its lead-out end is inserted through these holes, achieving precise horizontal positioning and ensuring that the workpiece does not wobble or shift during immersion. Adjustment plates 2 of different specifications can be combined to cover mainstream packaging parameters, improving the versatility of the device.

[0026] For example, when the leads of the workpiece to be immersed are on a straight line, one adjustment plate 2 is set up; when the leads are on two separate straight lines, two adjustment plates 2 are set up. The spacing between the adjustment plates 2 is adjustable to meet the pin row spacing requirements.

[0027] The bracket 3 is fixedly connected to the base plate 1 and extends vertically as a whole. A fixed crossbeam 303 is set at its upper end. The fixed crossbeam 303 is parallel to the base plate 1 and has a certain relative height, which is used to provide a guiding reference for the adjusting rod 4.

[0028] The adjusting rod 4 passes vertically through the fixed crossbeam 303 and is movably connected to it, allowing it to move freely up and down in the vertical direction. The lower end of the adjusting rod 4 is equipped with a pressure plate, which cooperates with the adjusting plate 2 when pressed down to press the workpiece to be immersed onto the adjusting plate 2.

[0029] As an optional implementation, the base plate 1 is provided with limiting grooves near both sides; the two ends of the adjusting plate 2 are limited by the cooperation of the pin 5 with the limiting groove.

[0030] Limiting grooves are provided near both sides of the base plate 1. The two ends of the adjusting plate 2 are respectively engaged with the limiting grooves via pins 5 to achieve limiting and guiding of the adjusting plate 2. Specifically, the limiting grooves are arranged along both sides of the support plate unit, forming a longitudinally extending slot structure. The two ends of the adjusting plate 2 are inserted into and engaged in the limiting grooves via pins 5, so that the adjusting plate 2 can obtain fixed support during installation while also sliding or fine-tuning along the direction of the limiting grooves.

[0031] As an optional implementation, the adjusting rod 4 is a threaded rod; the adjusting rod 4 is threadedly connected to the fixed crossbeam 303.

[0032] The fixed crossbeam 303 has a threaded hole that matches the external thread of the adjusting rod 4. The adjusting rod 4 is reliably connected to the fixed crossbeam 303 by screwing into the threaded hole. By rotating the adjusting rod 4, it can be precisely raised and lowered in the vertical direction under the action of the threaded pair, thereby driving the pressure plate at the end of the adjusting rod 4 to move up and down.

[0033] As an optional implementation, the adjustment plate 2 is provided with a plurality of fixing holes evenly distributed; the diameter of the fixing holes of different adjustment plates 2 is adapted to the pin size of different models of workpieces to be immersed; the distance between the fixing holes of different adjustment plates 2 is adapted to the pin row spacing.

[0034] Multiple fixing holes are evenly provided on the adjusting plate 2; the diameter of the fixing holes on different adjusting plates 2 is adapted to the pin size of different models of workpieces to be immersed; at the same time, the spacing between the fixing holes on different adjusting plates 2 is adapted to the pin row spacing of the corresponding workpieces.

[0035] Through-hole components vary considerably in their packaging structure, with lead diameters typically ranging from 0.5 mm to 1.0 mm, and common row spacing specifications including 1.27 mm, 2.00 mm, and 2.54 mm. To ensure that the leads remain vertically immersed in the solder bath 30 and reach the standard-specified depth during the immersion test, the fixing holes on the adjustment plate 2 are evenly arranged according to a predetermined rule, enabling stable positioning of the components during placement.

[0036] As an optional implementation, the bracket 3 includes a primary sub-bracket 301 and a secondary sub-bracket 302; the bottom of the primary sub-bracket 301 is connected to the base plate 1, and the top is connected to the secondary sub-bracket 302.

[0037] The support 3 includes a primary sub-support 301 and a secondary sub-support 302. The bottom of the primary sub-support 301 is fixedly connected to the base plate 1, and its top is connected to the secondary sub-support 302, thereby forming a support structure that extends in stages.

[0038] The primary sub-support 301 is directly supported and fixed to the base plate 1, ensuring a rigid connection between the support 3 and the support plate unit, and providing basic support for the entire device. The secondary sub-support 302 is set on top of the primary sub-support 301 to further extend the support height in the vertical direction. The fixed crossbeam 303 can be connected to the top of the primary sub-support 301. Through the step-by-step combination of the primary sub-support 301 and the secondary sub-support 302, the structural stress can be effectively distributed, enhancing the overall stability.

[0039] As an optional implementation, the top of the bracket 3 is provided with a connection hole.

[0040] The connecting hole at the top of bracket 3 is used to connect with the stroke control mechanism or other auxiliary components. When bracket 3 is assembled with these components, the connecting hole can provide an accurate installation position for fasteners (such as screws, pins 5, etc.), so that bracket 3 and the mounting components have a stable connection relationship.

[0041] As an optional implementation, the contact surface of the pressure plate is provided with a pad.

[0042] A cushion is placed on the underside of the pressure plate to provide flexible cushioning when the pressure plate presses down and comes into contact with the workpiece to be impregnated. The cushion can be made of materials with elasticity and heat resistance, such as silicone, rubber, or high-temperature resistant polyurethane, to ensure stable performance even in high-temperature solder impregnation environments.

[0043] As an optional implementation, the base plate 1 has a plurality of impregnation holes arranged side by side.

[0044] Multiple impregnation holes are arranged side by side on the base plate 1 according to a predetermined pattern, preferably in the form of a linear array or a rectangular array, so that the impregnation liquid can enter the device evenly through the impregnation holes.

[0045] As an optional implementation, the fixed crossbeam 303 is connected to the bracket 3 via positioning blocks on both sides.

[0046] Positioning blocks are provided at both ends of the fixed crossbeam 303. These positioning blocks cooperate with the bracket 3 to ensure the fixed crossbeam 303 is installed stably and accurately on the bracket 3. The positioning blocks can be either protruding and inserted into the limiting groove on the bracket 3, or recessed and engaged with the boss on the bracket 3, thus achieving rapid positioning and fixation between the crossbeam and the bracket 3. Alternatively, it can be fixed to the bracket 3 with screws.

[0047] This invention also provides an impregnation system, such as... Figure 2 As shown, the above-mentioned impregnation baffle device 40 is used for impregnation control, including: positioning frame 10, stroke control device 20 and welding tank 30; the stroke control device 20 is connected to the positioning frame 10; the movable shaft of the positioning frame 10 is connected to the impregnation baffle device 40; the welding tank 30 is located directly below the impregnation baffle device 40.

[0048] The positioning frame 10 serves as the system's skeleton structure, supporting and fixing the immersion baffle device 40 and the stroke control device 20. The movable shaft of the positioning frame 10 is connected to the immersion baffle device 40, enabling the immersion baffle device 40 to reciprocate under the action of the stroke control device, ensuring that the components can be accurately immersed into the welding tank 30.

[0049] The stroke control device 20 is connected to the positioning frame 10 and is used to drive the immersion baffle device 40 to complete the up-and-down movement of the specified stroke. A motor drive, stepper slide, or pneumatic actuator is preferably used to ensure that the speed, depth, and angle of the immersion action are controllable. Stroke control ensures that the depth and time of each immersion are consistent, thereby improving the repeatability and reliability of the test results.

[0050] The solder bath is located directly below the immersion baffle device and stores temperature-controlled solder for solderability testing of the component leads. When the immersion baffle device lowers the workpiece into the immersion tank, the solder level maintains a specified immersion depth and angle with the component leads. The solder bath can be integrated with temperature control and a replenishment mechanism to ensure the solder remains in a state that meets test standards.

[0051] The above technical solution has the following beneficial effects: by setting multiple immersion holes side by side on the base plate and cooperating with adjustment plates of different specifications, through-hole components of different sizes can be quickly positioned, thereby avoiding frequent adjustments to height and angle and improving test efficiency; through the pressing action of the adjustment rod and the pressure plate, the components are not affected by buoyancy or vibration during the immersion process, thereby ensuring the consistency of immersion depth and angle; through the stable connection of the bracket, fixed crossbeam and stroke control device, the immersion process remains precise and controllable, thereby ensuring the stability and repeatability of test results.

[0052] The above-described specific embodiments of the invention further illustrate the purpose, technical solution, and beneficial effects of the invention. It should be understood that the above content is only for specific embodiments of the invention and is not intended to limit the scope of protection of the invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. An impregnation baffle device, characterized in that, include: Base plate, the base plate including a plurality of impregnation holes; At least one adjusting plate is movably connected to the base plate and is provided with a fixing hole for limiting the workpiece to be immersed. A support frame connected to the base plate, the support frame including a fixed crossbeam arranged parallel to the base plate; An adjusting rod is provided, one end of which passes vertically through the fixed crossbeam and is movably connected to the fixed crossbeam. The end of the adjusting rod is provided with a pressure plate, which is used to press the workpiece to be impregnated onto the adjusting plate.

2. The impregnation baffle device according to claim 1, characterized in that: The base plate is provided with limiting grooves near both sides; The two ends of the adjustment plate are respectively limited by the cooperation of pins and limiting grooves.

3. The impregnation baffle device according to claim 1, characterized in that: The adjusting rod is a threaded rod; The adjusting rod is threadedly connected to the fixed crossbeam.

4. The impregnation baffle device according to claim 1, characterized in that: The adjusting plate is evenly provided with multiple fixing holes; The diameter of the fixing holes of different adjustment plates is adapted to the pin size of different models of workpieces to be immersed; The distance between the fixing holes of different adjustment plates is adapted to the pin row spacing.

5. The impregnation baffle device according to claim 1, characterized in that: The support system includes a primary sub-support and a secondary sub-support; The bottom of the primary sub-support is connected to the base plate, and the top is connected to the secondary sub-support.

6. The impregnation baffle device according to claim 1, characterized in that: The top of the bracket has a connection hole.

7. The impregnation baffle device according to claim 1, characterized in that: The contact surface of the pressure plate is provided with a soft pad.

8. The impregnation baffle device according to claim 1, characterized in that: The base plate has multiple impregnation holes arranged side by side.

9. The impregnation baffle device according to claim 1, characterized in that: The fixed crossbeam is connected to the bracket through positioning blocks on both sides.

10. An impregnation system, characterized in that, Impregnation control using the impregnation baffle device as described in any one of claims 1-9 includes: Positioning frame, stroke control device, and welding groove; The stroke control device is connected to the positioning frame; The movable shaft of the positioning frame is connected to the immersion baffle device; The welding tank is located directly below the immersion baffle device.

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