A mainboard welding fixture
Patent Information
- Application Number
- CN202522072584.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-09-26
AI Technical Summary
由于这种设计需要与主板表面接触并施加压力,可能会导致主板表面存在被划伤的风险
[0014] The beneficial effects of this utility model are: by replacing static friction with rolling friction, the risk of scratching the surface of the test board is effectively reduced; the bottom of the locking component contacts and locks with the ball, making the fixing and removal of the main board more convenient and improving production efficiency.
Smart Images

Figure CN224658340U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motherboard processing technology, and in particular to a motherboard welding fixture. Background Technology
[0002] A motherboard soldering fixture is a tool used to secure and position a motherboard (PCB). Its primary function is to ensure the motherboard remains stable during soldering, enabling precise soldering. However, when the motherboard is secured in the soldering fixture, the securing mechanism typically applies pressure to the motherboard surface. To expedite the securing and removal of the motherboard, the fixture often employs a sliding (static friction sliding) design. Because this design requires contact with and pressure on the motherboard surface, it may pose a risk of scratching the motherboard. Utility Model Content
[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0004] To solve the problems mentioned above, this utility model provides the following technical solution: a motherboard welding fixture includes a fixture and an adapter groove for positioning a board to be tested. The adapter groove has welding holes. The board to be tested is assembled on the fixture by a limiting structure. The limiting structure includes a rotating component, one end of which is rotatably mounted on the fixture. And a locking component, the middle section of which is movably mounted on a rotating component, and a ball bearing is rolled at the other end of the rotating component, the top of which is manipulated to make the bottom surface of the locking component collide / separate from the surface of the ball bearing.
[0005] Preferably, the rotating component has a screw hole, and the middle section of the locking component is fitted into the screw hole and threadedly connected to the rotating component.
[0006] Preferably, the rotating assembly includes a rotating seat, an extension plate, a support frame, a shaft, and balls, and the locking assembly includes a screw, a locking disc, and a rotating disc.
[0007] Preferably, one end of the rotating assembly is a rotating seat rotatably disposed on the surface of the non-adaptive groove of the clamp.
[0008] Preferably, the other end of the rotating assembly is an extension plate and a support frame at its bottom, with the ball bearings rolling on the support frame via a shaft.
[0009] Preferably, the threaded hole in the extension plate of the rotating assembly is a screw hole.
[0010] Preferably, the top of the locking assembly is a rotating disk, the bottom is a locking disk, and the middle section is a screw, which is sleeved in a threaded hole.
[0011] Preferably, the outer surface of the ball is covered with a protective sleeve.
[0012] Preferably, the shape of the ball is not limited to spherical.
[0013] Preferably, the number of limiting structures is at least three, and the top of the locking component is higher than the highest protrusion of the positioning plate to be tested.
[0014] The beneficial effects of this utility model are: by replacing static friction with rolling friction, the risk of scratching the surface of the test board is effectively reduced; the bottom of the locking component contacts and locks with the ball, making the fixing and removal of the main board more convenient and improving production efficiency. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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. Among them: Figure 1 This is a perspective view of the entire embodiment.
[0016] Figure 2 This is a perspective view of the rotating component and the clamping component in this embodiment.
[0017] Figure 3 This is a perspective view of the rotating component in this embodiment.
[0018] Figure 4 This is a cross-sectional view of the rotating component and the clamping component in this embodiment.
[0019] Figure 5 This is an example. Figure 1 Assembly diagram of the motherboard on the fixture.
[0020] Figure 6 This is an example. Figure 5 A flipped image.
[0021] In the diagram; fixture 100, adapter groove 100a, welding hole 100a-1; Rotating assembly 200, rotating seat 201, extension plate 202, threaded hole 202a, support frame 203, shaft 204, ball bearing 205; Locking assembly 300, screw 301, locking disc 302, rotating disc 303, test plate 400, protrusion 401. Detailed Implementation
[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0025] Example Reference Figures 1 to 6 This is an embodiment of the present invention, which provides a motherboard soldering fixture, such as... Figure 1 As shown, it includes a fixture 100 and an adapter groove 100a for positioning a test plate 400. The adapter groove 100a has a welding hole 100a-1 within its range. The test plate 400 is assembled on the fixture 100 by a limiting structure. The limiting structure includes a rotating component 200, one end of which is rotatably mounted on the fixture 100. And a locking component 300, the middle section of which is movably mounted on the rotating component 200, and a ball bearing 205 is rotatably mounted on the other end of the rotating component 200. The top of the locking component 300 is manipulated so that the surface of its bottom contacts / separates from the surface of the ball bearing 205. The fixture 100 is used to support and fix the main body structure of the motherboard. The adapter groove 100a is provided on the fixture 100 for positioning the board 400 to be tested. Welding holes 100a-1 are provided within the range of the adapter groove 100a to facilitate welding operations. The limiting structure is used to assemble the board 400 to be tested onto the fixture 100, including a rotating component 200 and a locking component 300. The rotating component 200 has one end rotatably mounted on the fixture 100 and the other end has a rolling ball 205. The ball 205 contacts the board 400 to achieve rolling friction. The locking component 300 has a movable middle section mounted on the rotating component 200. The top is used for operation, and the bottom surface can abut or separate from the surface of the ball 205. By operating the locking component 300, the ball 205 can be locked or released. Working principle: The board to be tested 400 is placed into the adapter slot 100a and positioned by the limiting structure. The ball 205 contacts the board 400 to achieve rolling friction, reducing the risk of scratching the motherboard surface. The top of the locking component 300 is manipulated so that its bottom surface abuts against the surface of the ball 205, thereby locking the ball 205 and fixing the board 400 to be tested. When the motherboard is removed; Manipulate the top of the locking assembly 300 to separate its bottom surface from the surface of the ball 205, release the ball 205, and the test plate 400 can be easily removed; It is worth mentioning that by replacing static friction with rolling friction, the risk of scratching the surface of the test board 400 is effectively reduced. The bottom of the locking component 300 contacts the ball and locks, making the fixing and removal of the main board more convenient and improving production efficiency. In another embodiment, such as Figure 1 , Figure 2 As shown; the rotating component 200 is provided with a screw hole, and the middle section of the locking component 300 is sleeved in the screw hole and threadedly connected to the rotating component 200. By rotating the locking component 300, the ball 205 can be locked or released. Its advantage is that the ball 205 is fixed after locking, and the structure is simple and stable. In another embodiment, such as Figures 1-4 As shown, the rotating assembly 200 includes a rotating seat 201, an extension plate 202, a support frame 203, a shaft 204, and a ball bearing 205. The locking assembly 300 includes a screw 301, a locking disc 302, and a rotating disc 303. One end of the rotating assembly 200 is the rotating seat 201, which is rotatably mounted on the surface of the non-adaptive groove 100a of the clamp 100. The other end of the rotating assembly 200 is the extension plate 202 and the support frame 203 at its bottom. The ball bearing 205 is rolled on the support frame 203 via the shaft 204. The threaded hole 202a of the extension plate 202 on the rotating assembly 200 is a screw hole. The top of the locking assembly 300 is the rotating disc 303, the bottom is the locking disc 302, and the middle section is the screw 301. The screw 301 is sleeved in the threaded hole 202a. The outer surface of the ball bearing 205 is covered with a protective sleeve. The shape of the ball bearing 205 is not limited to a spherical shape. One end of the rotating component 200 is rotatably mounted on the surface of the non-adaptive groove 100a of the fixture 100 via the rotating seat 201. The rotating seat 201 allows the rotating component 200 to rotate flexibly, making it easy to adjust the position of the ball 205. The other end of the rotating component 200 is an extension plate 202, and a support frame 203 is provided at the bottom of the extension plate 202. The support frame 203 is used to fix the shaft 204 and ensure the stability of the ball 205; The ball 205 is rolled on the support frame 203 via the shaft 204. The shaft 204 allows the ball 205 to roll freely, thus achieving rolling friction. The outer surface of the ball bearing 205 is covered with a protective sleeve (such as rubber or silicone) to reduce the risk of scratching the motherboard surface. The shape of the ball bearing 205 is not limited to spherical, but can also be designed into other shapes (such as cylindrical) according to actual needs to adapt to different motherboard fixing requirements. The extension plate 202 has a threaded hole 202a for connecting with the screw 301 of the locking assembly 300; The middle section of the locking assembly 300 is a screw 301. The screw 301 is sleeved in the threaded hole 202a of the extension plate 202 and is threadedly connected to the threaded hole 202a. By rotating the screw 301, the locking assembly 300 can move up and down. The bottom of the locking assembly 300 is a locking disc 302, which is used to contact or separate from the surface of the ball 205. When the locking disc 302 contacts the ball 205, the ball 205 is locked and the main board is fixed. When the locking disc 302 separates from the ball 205, the ball 205 can roll freely and the main board can be easily removed. The top of the locking assembly 300 is a rotating disk 303, which is used to control the rotation of the screw 301. By rotating the rotating disk 303, the position of the locking disk 302 can be controlled. Working principle: The test board 400 is placed in the adapter groove 100a of the fixture 100. The ball bearing 205 contacts the test board 400 to achieve rolling friction, reducing the risk of scratching the surface of the main board. The rotating disk 303 of the rotating locking assembly 300 causes the screw 301 to move downward along the threaded hole 202a. The locking disk 302 abuts against the surface of the ball bearing 205, thereby locking the ball bearing 205. After the ball bearing 205 is locked, the test board 400 is fixed on the fixture 100 to ensure its stability during the welding process. After welding is completed, the rotating disk 303 of the locking assembly 300 is rotated in the opposite direction, causing the screw 301 to move upward along the threaded hole 202a. The locking disk 302 separates from the surface of the ball 205, releasing the ball 205. The ball 205 returns to its free rolling state, and the test plate 400 can be easily removed. In another embodiment, such as Figure 5 , Figure 6 As shown, it includes a fixture 100 and an adapter groove 100a for positioning a test plate 400. The adapter groove 100a has a welding hole 100a-1 within its range. The test plate 400 is assembled on the fixture 100 by a limiting structure. The limiting structure includes a rotating component 200, one end of which is rotatably mounted on the fixture 100. And a locking component 300, the middle section of which is movably mounted on the rotating component 200, and a ball bearing 205 is rolled at the other end of the rotating component 200. The top of the locking component 300 is manipulated so that the bottom surface of the locking component 300 contacts / separates from the surface of the ball bearing 205. The number of limiting structures is at least three. The top of the locking component 300 is higher than the highest protrusion 401 of the positioning test plate 400. Working principle: When the test plate 400 is placed into the adapter slot 100a, the rotating disk 303 is controlled to move downward, so that the locking disk 302 contacts the surface of the ball 205 and locks the ball 205. After locking, the flip fixture 100 is turned so that its back faces up, and the bottom of the rotary disk 303 contacts the worktable, becoming a support body and directly bearing the weight of the main board; At this time, the clamp 100 is only used to fix the position of the motherboard, and does not need to bear the weight of the motherboard.
[0026] In this embodiment, the top of the locking component 300 (rotary disk 303) is directly supported by the main board and the worktable after locking the main board. The clamp 100 is only fixed to the main board, so the clamp 100 is not limited by material. Compared with traditional clamps, the clamp 100 does not need sufficient strength to support the main board. Therefore, the clamp 100 can be manufactured very cheaply, which is convenient for workers to handle and saves materials. When manufacturing the clamp 100, it is only necessary to consider meeting the welding requirements.
[0027] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A motherboard soldering fixture, comprising a fixture (100) and an adapter groove (100a) for positioning a board to be tested (400), wherein a soldering hole (100a-1) is provided within the adapter groove (100a), and the board to be tested (400) is assembled onto the fixture (100) by a limiting structure, characterized in that: The limiting structure includes a rotating component (200), one end of which is rotatably mounted on the clamp (100); And a locking component (300), the middle section of which is movably disposed on a rotating component (200), and a ball (205) is rotatably disposed at the other end of the rotating component (200), and the top of the locking component (300) is manipulated so that the surface of its bottom contacts / separates from the surface of the ball (205).
2. The motherboard soldering fixture as described in claim 1, characterized in that: The rotating component (200) is provided with a screw hole, and the middle section of the locking component (300) is sleeved in the screw hole and threadedly connected to the rotating component (200).
3. The motherboard soldering fixture as described in claim 1, characterized in that: The rotating assembly (200) includes a rotating seat (201), an extension plate (202), a support frame (203), a shaft (204), and a ball bearing (205). The locking assembly (300) includes a screw (301), a locking disc (302), and a rotating disc (303).
4. The motherboard soldering fixture as described in claim 3, characterized in that: One end of the rotating assembly (200) is a rotating seat (201) rotatably disposed on the surface of the non-adapter groove (100a) of the clamp (100).
5. The motherboard soldering fixture as described in claim 3, characterized in that: The other end of the rotating assembly (200) is an extension plate (202) and a support frame (203) at its bottom. The ball bearing (205) is rolled on the support frame (203) via the shaft (204).
6. The motherboard soldering fixture as described in claim 2, characterized in that: The threaded hole (202a) on the extension plate (202) of the rotating assembly (200) is a threaded hole.
7. The motherboard soldering fixture as described in claim 1 or 3, characterized in that: The top of the locking assembly (300) is a rotating disk (303), the bottom is a locking disk (302), and the middle section is a screw (301), which is sleeved in a threaded hole (202a).
8. The motherboard soldering fixture as described in claim 5, characterized in that: The outer surface of the ball (205) is covered with a protective sleeve.
9. The motherboard soldering fixture as described in claim 8, characterized in that: The shape of the ball (205) is not limited to spherical.
10. The motherboard soldering fixture as described in claim 1, characterized in that: The number of limiting structures is at least three, and the top of the locking assembly (300) is higher than the highest protrusion (401) of the positioning test plate (400).