A rotatable moving type fixing jig for suspending and welding a plate on a hardware terminal

Abstract

The utility model discloses a rotatable movable type fixed jig for hardware terminal suspension welding upper plate, including base (9), rotating component (11), height adjustment and compression assembly, positioning limiting groove and heat insulating baffle (2). Rotating component (11) sets up on base (9) and can rotate relative to base (9), is used for the posture adjustment of pressure holding to protection board (1), height adjustment and compression assembly are arranged between rotating component (11) and base (9), can realize the height adjustment of rotating component (11) while pressure holding protection board (1). The utility model discloses simple structure, and the positioning precision is high, can improve welding efficiency and consistency, reduce the dependence on operator's skill, avoid the damage of welding heat to protection board component, has stronger practicality and popularization value.

Description

Technical Field

[0001] This utility model relates to a fixing fixture, specifically a rotatable and movable fixing fixture for suspending and welding upper plates of hardware terminals. Background Technology

[0002] During the fabrication of protection boards, it is often necessary to solder some metal terminals onto the protection board. In one special case, the soldering part of the metal terminal needs to be suspended above the surface of the protection board by a certain distance and not in contact with any components or circuits on the protection board. This is usually done by soldering the pins of the metal terminal to the through holes on the protection board.

[0003] In existing technologies, manual positioning and fixing are commonly used when soldering such suspended metal terminals. Operators typically need to use one hand to solder with a soldering iron and the other hand to hold the metal terminal in a suspended state and align it with the through hole.

[0004] This approach has many pain points and drawbacks:

[0005] Relying entirely on the operator's manual skills makes it difficult to ensure that the hardware terminals are precisely aligned with the through holes every time, which can easily lead to misalignment or skewness and poor soldering.

[0006] Manual operation is time-consuming and labor-intensive, making it impossible to achieve fast and continuous operation, which seriously affects production cycle and efficiency;

[0007] Different operators or different operations by the same operator cannot guarantee that the spacing and angle of the metal terminals are completely consistent, resulting in large fluctuations in product quality.

[0008] If the hardware terminals need to be soldered at a specific angle (not perpendicular), it is almost impossible to maintain that angle stably by hand. Summary of the Invention

[0009] To address the aforementioned problems, this utility model provides a rotatable and movable fixing fixture for a suspended welding plate for hardware terminals, which effectively overcomes the shortcomings of the prior art.

[0010] This utility model is achieved through the following technical solution: a rotatable and movable fixing fixture for a suspended welding plate of hardware terminals, comprising:

[0011] Base;

[0012] A rotating component is disposed on the base and is rotatable relative to the base. The rotating component is used to hold and adjust the posture of the protective plate.

[0013] A height adjustment and clamping assembly is disposed between the rotating assembly and the base, for adjusting the height of the rotating assembly while clamping the protective plate;

[0014] The positioning and limiting groove is provided on the base, including a first fixed limiting groove for placing the hardware terminal and a second fixed limiting groove for placing the protective plate. The two are arranged in a preset relative position so that the hardware terminal is aligned with the through hole of the protective plate and forms a suspended state during welding.

[0015] A heat insulation baffle is disposed between the hardware terminal and the protective plate to form a preset distance and isolate welding heat.

[0016] As a preferred technical solution, the base is also provided with an auxiliary removal hole, which is located in the adjacent area of ​​the positioning and limiting groove, for inserting a tool to conveniently remove the hardware terminal or protective plate from the corresponding limiting groove.

[0017] As a preferred technical solution, the rotating assembly includes a rotating plate, which is connected to the height adjustment and pressing assembly through a through hole in the center or edge to achieve rotatable pressing relative to the base.

[0018] As a preferred technical solution, the height adjustment and clamping assembly includes an elastic element and a through fastener. The elastic element is located between the rotating plate and the base and is penetrated by the through fastener, thereby providing an adjustable preload when the rotating plate presses against the protective plate.

[0019] As a preferred technical solution, the through-type fastener is a nut bolt or a screw and nut assembly, the elastic element is a helical spring, and the effective length of the nut bolt is greater than the total thickness of the base, the rotating plate and the spring, so as to ensure the adjustable range of the preload.

[0020] As a preferred technical solution, there are multiple first fixed limiting grooves, which are set one by one according to the layout of the hardware terminals to be welded; the second fixed limiting groove is a contour groove that matches the shape of the protection board and the outline of the components on the board, in order to avoid interference with the components on the board and to achieve repeated positioning.

[0021] As a preferred technical solution, the first fixed limiting groove and the second fixed limiting groove are arranged in a group along the long side of the fixture, and their relative positions are limited by the positioning pins and / or blocks on the base, thereby ensuring the coaxial alignment accuracy of the hardware terminals and the through holes of the protective plate.

[0022] As a preferred technical solution, the auxiliary removal hole is set as a through hole or waist-shaped hole that is tangent to or adjacent to the boundary of the adjacent limiting groove, so that tweezers, suction cups or fingertips can be inserted to lift, grip or pry up the hardware terminal or protective plate; at least one auxiliary removal hole is provided near each set of limiting grooves.

[0023] As a preferred technical solution, the base is a plate-shaped structure; the rotating plate is disposed above the base and generates a downward pressing force through the elastic element; the first fixed limiting groove is disposed in the adjacent area of ​​the second fixed limiting groove, and the height difference or step surface of the two are used to limit the suspension distance of the hardware terminal relative to the protective plate.

[0024] The beneficial effects of this utility model are: compared with the prior art, the rotatable and movable fixing fixture for the suspended welding plate of hardware terminals provided by this utility model can achieve multi-angle rotation and height adjustable pressing after the protective plate is positioned through the cooperation of the rotating component and the height adjustment and pressing component. It is flexible in operation and convenient for welding operations.

[0025] The relative arrangement of the first and second fixed limiting grooves ensures precise alignment between the hardware terminals and the through holes of the protective plate, thereby effectively guaranteeing the suspension distance of the terminals and the consistency of welding. The auxiliary removal hole on the base makes it easier and faster to remove and put in the hardware terminals or the protective plate, improving the efficiency of the fixture in the production process.

[0026] Meanwhile, the contour-following design of the limiting groove avoids interference with components on the protective plate, ensuring assembly stability and product quality. The overall structure is simple and reliable, which not only improves welding accuracy and production yield, but also reduces reliance on operator skills, minimizes rework and scrap, and has significant value for widespread application. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0029] Figure 2 This is a partial assembly diagram of the present invention;

[0030] Figure 3 This is a schematic diagram of the overall structure of the present invention after assembly and clamping;

[0031] Explanation of reference numerals in the attached figures:

[0032] 9. Base; 11. Rotating assembly; 6. Rotating plate; 5. Elastic element; 4. Nut bolt; 8. First fixed limiting groove; 10. Second fixed limiting groove; 7. Auxiliary removal hole; 1. Protective plate; 2. Heat insulation baffle; 3. Hardware terminal. Detailed Implementation

[0033] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0034] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0035] like Figures 1-3 As shown, this utility model discloses a rotatable and movable fixing fixture for suspending and welding a metal terminal 3 onto an upper plate. It comprises a base 9, a rotating assembly 11, a height adjustment and clamping assembly, a positioning and limiting groove, a heat insulation baffle 2, and an auxiliary removal hole 7. This utility model not only improves welding accuracy and work efficiency but also significantly reduces reliance on operator skills, thus possessing high industrial application value.

[0036] Structurally, the base 9 serves as the load-bearing foundation for the entire fixture, and is preferably made of metal or high-strength composite materials, such as rigid aluminum alloy, stainless steel sheet, or epoxy fiberglass reinforced composite board. These materials are chosen because they provide sufficient strength and rigidity while maintaining lightweight design, ensuring that no significant deformation or wear occurs under long-term use and repeated pressing conditions.

[0037] The base 9 is a plate-like structure, and its thickness can be adjusted according to different application scenarios and the weight of the protective plate 1 to be supported, typically between 5 mm and 15 mm. The surface of the base 9 can be anodized, sprayed with an insulating layer, or electroplated to improve its corrosion resistance and insulation.

[0038] Positioning and limiting grooves are arranged on the surface of the base 9. These grooves serve to fix and position the metal terminals 3 and the protective plate 1. There are two types of positioning and limiting grooves. The first type, the fixing limiting groove 8, is used to place the metal terminals 3 to be welded. There are usually many of these grooves, arranged one-to-one according to the arrangement of the metal terminals 3. The shape of the groove is designed according to the geometry of the metal terminals 3, and can be a rectangular groove, a trapezoidal groove, or a partially irregular groove, to ensure that the terminals can be placed stably without shaking. The depth of the groove bottom is set according to the required overhang distance during terminal welding, usually within the range of 1 mm to 5 mm, so that the welding part of the terminal is at a reasonable height in the fixture.

[0039] The second fixed limiting groove 10 is used to place the protective plate 1, and its shape and size are designed according to the outer contour of the protective plate 1 and the distribution of its components.

[0040] The protective board 1 is typically a printed circuit board with numerous components and pads on its surface. Therefore, using a standard flat slot for positioning can easily lead to interference issues. This invention addresses this by designing a clearance area within the second fixed limiting slot 10 corresponding to the component positions. This ensures that the protective board 1 does not interfere with the limiting slot when placed, while simultaneously guaranteeing a tight fit against the slot's boundary for repeatable positioning. Through this design, the protective board 1 maintains a stable and consistent position regardless of placement conditions, preventing deviations caused by manual placement.

[0041] An auxiliary removal hole 7 is provided near the positioning and limiting groove of the base 9. These holes are preferably designed as through holes or oblong holes, and their positions are usually tangent to or close to the boundary of the limiting groove, so that the operator can use tweezers, suction cups or finger tools to lift, clamp or pry out the hardware terminal 3 or protective plate 1 from the limiting groove after welding. At least one auxiliary removal hole 7 is arranged near each limiting groove. In some cases, in order to improve the convenience of operation, one removal hole is arranged at each end of the limiting groove.

[0042] The diameter of the auxiliary extraction hole 7 is usually between 3 mm and 8 mm, and the long side of the waist-shaped hole can reach 10 mm to 15 mm, thus ensuring that the extraction tool can be smoothly inserted and operated, reducing the resistance and risk for operators when picking up and putting down components, and avoiding the problem of device damage or loose solder joints caused by directly pulling them out by hand.

[0043] The rotating assembly 11 is one of the core components of this invention, comprising a rotating plate 6. The rotating plate 6 is connected to the clamping assembly via a through-hole at its center or edge and a height adjustment mechanism, thereby enabling it to rotate relative to the base 9. The rotating plate 6 is preferably made of a metal material, such as aluminum alloy or stainless steel, but high-strength engineering plastics can also be used to ensure good wear resistance during long-term rotational operation. The thickness of the rotating plate 6 is between 3 mm and 10 mm, ensuring both rigidity and minimal weight to maintain rotational flexibility. The rotating plate 6 and the base 9 achieve low-friction rotation through bearing engagement or smooth surface contact, ensuring smooth and easy rotation.

[0044] A height adjustment and clamping assembly is located between the rotating plate 6 and the base 9. Its main function is to clamp the protective plate 1 and achieve height adjustment. This assembly consists of an elastic element 5 and a through-type fastener. The elastic element 5 is preferably a helical spring, located between the rotating plate 6 and the base 9, providing adjustable elastic pressure when the rotating plate 6 clamps the protective plate 1. The spring constant and height are designed according to the thickness of the protective plate 1 and the required clamping force. Generally, the clamping force is controlled between 2 Newtons and 10 Newtons to ensure the stability of the protective plate 1 without causing damage.

[0045] Through-fasteners pass through the rotating plate 6, spring, and base 9 to secure the components together. The fasteners can be either bolts 4 or screw-nut assemblies, with a length greater than the total thickness of the rotating plate 6, base 9, and spring. This allows for adjustment of the spring compression during installation by tightening or loosening the fasteners. This adjustment mechanism enables the operator to flexibly adjust the height and clamping force of the rotating plate 6 according to different protective plate 1 thicknesses and welding process requirements, ensuring that the protective plate 1 is securely positioned without being damaged by excessive pressure during welding.

[0046] A heat insulation baffle 2 is provided between the metal terminal 3 and the protective plate 1. This baffle is made of a high-temperature resistant material, such as a polyimide sheet, Teflon sheet, or ceramic sheet. The thickness of the heat insulation baffle 2 is generally between 0.5 mm and 3 mm. Its function is to form a preset gap and isolate heat transfer during the welding process. The welding of the metal terminal 3 requires high temperature, and the components on the protective plate 1 are quite sensitive to high temperature. Without heat insulation design, components are easily damaged by heat or the solder joints are poorly soldered.

[0047] This invention effectively prevents welding heat from being transferred to the surface of the protective plate 1 by arranging the heat insulation baffle 2, thus ensuring the overall welding quality and the safety of the circuit board.

[0048] In actual use, the operator first places the protective plate 1 into the second fixed limiting groove 10. The protective plate 1 can be firmly embedded and the component part will not interfere with the limiting groove.

[0049] The hardware terminal 3 is then placed into the first fixed limiting groove 8, at which point the welding part of the terminal is suspended above the protective plate 1 and aligned with the through hole. The operator can then press the protective plate 1 down using the rotating plate 6. The rotating plate 6, under the action of a spring, provides downward pressure to the protective plate 1, ensuring it does not shift during welding. Simultaneously, the rotating plate 6 can rotate relative to the base 9, allowing the operator to adjust the position and angle of the protective plate 1 according to their operating habits, making the welding process smoother.

[0050] During the welding process, the heat insulation baffle 2 effectively isolates the high-temperature heat, avoiding damage to the protective plate 1 and its components;

[0051] After welding is completed, the operator does not need to directly pull out the protective plate 1 or the hardware terminal 3 by hand. Instead, they can easily remove it by inserting tweezers or a suction cup through the auxiliary removal hole 7. This not only improves convenience but also enhances safety and reduces work-related injuries or product damage caused by improper operation.

[0052] The structure of this utility model can also be modularly expanded. The base 9 can be designed as a multi-station structure, with multiple sets of first fixing limiting grooves 8 and second fixing limiting grooves 10 arranged on a single base 9, thereby simultaneously fixing multiple protective plates 1 and multiple hardware terminals 3, adapting to the needs of mass production. Multiple rotating components 11 and clamping components can also be provided, allowing operators to quickly switch between different welding positions, further improving production efficiency.

[0053] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A rotatable and movable fixing fixture for a suspended welding plate of hardware terminals, characterized in that, include: Base (9); A rotating component (11) is disposed on the base (9) and is rotatable relative to the base (9). The rotating component (11) is used to press and adjust the posture of the protective plate (1). A height adjustment and clamping assembly is disposed between the rotating assembly (11) and the base (9) for adjusting the height of the rotating assembly (11) while clamping the protective plate (1); The positioning and limiting groove is set on the base (9), including a first fixed limiting groove (8) for placing the hardware terminal (3) and a second fixed limiting groove (10) for placing the protective plate (1). The two are arranged in a preset relative position so that the hardware terminal (3) is aligned with the through hole of the protective plate (1) and forms a suspended state during welding. A heat insulation baffle (2) is disposed between the hardware terminal (3) and the protective plate (1) to form a preset distance and isolate welding heat.

2. The rotatable and movable fixing fixture for the suspended welding upper plate of hardware terminals according to claim 1, characterized in that: The base (9) is also provided with an auxiliary removal hole (7), which is located in the adjacent area of ​​the positioning and limiting groove, for inserting a tool to conveniently remove the hardware terminal (3) or the protective plate (1) from the corresponding limiting groove.

3. The rotatable and movable fixing fixture for the suspended welding upper plate of hardware terminals according to claim 1, characterized in that: The rotating assembly (11) includes a rotating plate (6), which is connected to the height adjustment and pressing assembly through a through hole in the center or edge to achieve rotatable pressing relative to the base (9).

4. The rotatable and movable fixing fixture for the suspended welding upper plate of hardware terminals according to claim 3, characterized in that: The height adjustment and clamping assembly includes an elastic element (5) and a through fastener. The elastic element (5) is located between the rotating plate (6) and the base (9) and is penetrated by the through fastener, thereby providing an adjustable preload when the rotating plate (6) presses against the protective plate (1).

5. The rotatable and movable fixing fixture for the suspended welding upper plate of hardware terminals according to claim 4, characterized in that: The through-type fastener is a nut bolt (4) or a screw-nut assembly, the elastic element (5) is a helical spring, and the effective length of the nut bolt (4) is greater than the total thickness of the base (9), the rotating plate (6) and the spring, so as to ensure the adjustable range of the preload.

6. The rotatable and movable fixing fixture for the suspended welding upper plate of hardware terminals according to claim 1, characterized in that: The first fixed limiting groove (8) is multiple and is set one by one according to the layout of the hardware terminals (3) to be welded; the second fixed limiting groove (10) is a contour groove that matches the shape of the protection plate (1) and the outline of the components on the plate, and is used to avoid interference with the components on the plate and to achieve repeated positioning.

7. The rotatable and movable fixing fixture for the suspended welding upper plate of hardware terminals according to claim 6, characterized in that: The first fixed limiting groove (8) and the second fixed limiting groove (10) are arranged in a group along the long side of the fixture, and their relative positions are limited by the positioning pins and / or stops on the base (9), thereby ensuring the coaxial alignment accuracy of the hardware terminal (3) and the through hole of the protective plate (1).

8. The rotatable and movable fixing fixture for the suspended welding upper plate of hardware terminals according to claim 2, characterized in that: The auxiliary removal hole (7) is set as a through hole or waist-shaped hole that is tangent to or adjacent to the boundary of the adjacent limiting groove, so that tweezers, suction cups or fingertips can be inserted to lift, grip or pry up the hardware terminal (3) or the protective plate (1); at least one auxiliary removal hole (7) is provided near each set of limiting grooves.

9. The rotatable and movable fixing fixture for the suspended welding upper plate of hardware terminals according to claim 4, characterized in that: The base (9) is a plate-shaped structure; the rotating plate (6) is located above the base (9) and generates a downward pressing force through the elastic element (5); the first fixed limiting groove (8) is located in the adjacent area of ​​the second fixed limiting groove (10), and the height difference or step surface of the two are used to limit the suspension distance of the hardware terminal (3) relative to the protective plate (1).

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