A multi-station modular fastening fixture for PCB boards

Abstract

This utility model discloses a multi-station modular fastening fixture for PCB boards, aiming to solve the problems of low efficiency and inconsistent clamping force leading to poor clamping of copper pillars in existing manual locking methods. The fixture includes a base, a positioning assembly, a double-sided elbow clamping mechanism, and guide posts. The positioning assembly consists of a copper pillar positioning plate and a PCB positioning plate on top of it. The copper pillar positioning plate has an array of copper pillar positioning holes on both sides, and the PCB positioning plate has grooves for positioning the PCB and matching through holes. The double-sided elbow clamping mechanism is symmetrically distributed on both sides of the positioning assembly, and its clamping end has a V-groove structure for reliably clamping the copper pillar. At least two parallel guide posts pass through the positioning assembly and connect to the double-sided elbow clamping mechanism, precisely controlling the clamping / releasing stroke. This utility model, through modular positioning and elbow clamping mechanisms, achieves rapid, accurate, and stable clamping of copper pillars, significantly improving the operational efficiency and product quality stability of PCB board copper pillar locking.

Description

Technical Field

[0001] This utility model relates to the field of PCB production equipment, and in particular to a multi-station modular fastening fixture for PCB boards. Background Technology

[0002] Printed Circuit Boards (PCBs) are core components of modern electronic devices, widely used in mobile phones, computers, home appliances, automotive electronics, medical equipment, and other fields. During PCB manufacturing, multiple copper pillars are often attached to specific locations for subsequent component mounting, fixation, or structural support.

[0003] Currently, this process mainly relies on manual operation: workers need to grasp the copper pillar with their fingers, align it with the hole on the PCB board, and then tighten it with an electric screwdriver. This work mode has significant drawbacks:

[0004] Inefficient: Grabbing, aligning, and locking the copper pillars one by one is a cumbersome and time-consuming process.

[0005] Poor positioning accuracy: The stability of the copper pillar held by the fingers is poor, making it difficult to ensure the precise and vertical alignment of the copper pillar with the hole on the PCB board, which can easily cause misalignment or damage to the hole wall.

[0006] Unstable clamping force: Manual gripping force is affected by factors such as fatigue and individual differences, making it difficult to maintain consistency. Too loose a grip will cause the copper post to wobble or shift during the locking process; too tight a grip may damage the copper post or increase the operational burden. This directly increases the risk of insufficient tightening torque (leading to loose connections) or over-tightening of some screws, affecting connection reliability and product yield.

[0007] Multi-station operation is not possible: manual operation makes it difficult to stably clamp and position multiple copper pillars at the same time, which limits the increase in production capacity.

[0008] Therefore, there is an urgent need for a specialized fixture that can achieve rapid, accurate, and stable positioning and clamping of copper pillars, and support simultaneous operation of multiple workstations, in order to improve the efficiency, quality, and consistency of the copper pillar locking process on PCB boards. Utility Model Content

[0009] The purpose of this utility model is to provide a modular fastening fixture for PCB boards with higher work efficiency.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A multi-station modular fastening fixture for PCB boards includes:

[0012] Base;

[0013] A positioning component is disposed on the base. The positioning component includes a copper pillar positioning plate and a PCB positioning plate disposed on the copper pillar positioning plate. The two sides of the copper pillar positioning plate are provided with an array of copper pillar positioning holes for fixing the copper pillar.

[0014] The dual-sided elbow clamp mechanism includes a left elbow clamp and a right elbow clamp symmetrically arranged on both sides of the positioning component, used to clamp the copper column from both sides;

[0015] At least two parallel guide posts pass through the positioning assembly and connect to the double-sided elbow clamp mechanism, controlling the clamping / releasing stroke of the elbow clamp through precision guidance.

[0016] Furthermore, the PCB positioning plate is recessed inward to form a groove for accommodating and positioning the PCB board.

[0017] Furthermore, the groove is provided with a through hole that matches the copper pillar positioning hole array.

[0018] Furthermore, the clamping end of the dual-sided elbow clamping mechanism is provided with a V-groove structure, forming a surface contact with the outer diameter of the copper column.

[0019] Furthermore, the left elbow clamp includes a push rod, a fixed plate, a clamping force transmission block, and a clamping plate connected to the clamping force transmission block, with the push rod passing through the fixed plate and the clamping force transmission block in sequence.

[0020] Furthermore, an adjusting screw for adjusting the distance between the fixing plate and the clamping force transmission block is provided, and the sides of the two are connected by a tension spring.

[0021] Furthermore, the right elbow clamp has the same structure as the left elbow clamp.

[0022] Compared with the prior art, the clamp structure of this utility model has the following advantages:

[0023] The manual gripping of the copper pillars has been replaced with a reliable clamping of the copper pillars by using an elbow clamp under the precise guidance of the guide pillar. At the same time, to address the problem of poor alignment between the PCB board and the copper pillars, a PCB positioning board and copper pillar positioning holes are made to fix the relative positions. This makes the work more efficient and easier for employees, and the product quality more stable and reliable. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the clamp of this utility model;

[0025] Figure 2 This is a schematic diagram of the fixture structure after the PCB positioning board is removed in this utility model;

[0026] Figure 3 This is a schematic diagram of the fixture after the PCB positioning board has been removed, from another perspective. Detailed Implementation

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] See Figure 1 , 2 3. A multi-station modular fastening fixture for PCB boards, comprising:

[0031] Base 1; Base 1 is used to integrate positioning components and dual-sided elbow clamping mechanisms;

[0032] A positioning component is provided on the base 1. The positioning component includes a copper pillar positioning plate 2 and a PCB positioning plate 3 provided on the copper pillar positioning plate. The two sides of the copper pillar positioning plate 2 are provided with a copper pillar positioning hole array 21 for fixing the copper pillar.

[0033] The double-sided elbow clamp mechanism includes a left elbow clamp 4 and a right elbow clamp 5 symmetrically arranged on both sides of the positioning component, used to clamp the copper column 6 from both sides; in this embodiment, the left elbow clamp 4 and the right elbow clamp 5 have the same structure; taking the left elbow clamp 4 as an example, the left elbow clamp includes a push rod 41, a fixing plate 42, a clamping force transmission block 43 and a clamping plate 44 connected to the clamping force transmission block 43. The push rod 41 passes through the fixing plate 42 and the clamping force transmission block 43 in sequence; an adjusting screw 45 for adjusting the distance between the fixing plate 42 and the clamping force transmission block 43 is provided between them, and the sides of the two are connected by a tension spring 46. Furthermore, the clamping end of the double-sided elbow clamp mechanism is provided with a V-groove structure 47, which forms a surface contact with the outer diameter of the copper column.

[0034] At least two parallel guide posts 7 pass through the positioning assembly and are connected to the double-sided elbow clamp mechanism, and the clamping / releasing stroke of the elbow clamp is controlled by precision guidance.

[0035] In a preferred embodiment of the present invention, the PCB positioning plate 3 is recessed inward to form a groove 31 for accommodating and positioning the PCB board, and a through hole 32 matching the copper pillar positioning hole array is provided in the groove 31.

[0036] The operation process of the PCB board multi-station modular fastening fixture of this utility model is as follows:

[0037] 1. Manually place the copper pillar into the copper pillar positioning plate. 2. Clamp the left elbow clamp. 3. Clamp the right elbow clamp. 4. Place the PCB board to be locked. 5. Tighten the screws with an electric screwdriver. 6. Open the left elbow clamp. 7. Open the right elbow clamp. 8. Take out the assembled PCB board. 9. Repeat steps 1-8. Compared with the prior art, the clamp structure of this utility model has the following significant advantages:

[0038] Significantly improves work efficiency: Through the copper column positioning hole array and modular design, multiple copper columns can be positioned at one time; the double-sided elbow clamp mechanism works in tandem to achieve rapid and synchronous clamping and release of copper columns, significantly shortening the single-piece operation time and supporting multi-station parallel operation.

[0039] Ensuring precise and reliable positioning: The grooves and through holes of the PCB positioning board are strictly matched with the positioning hole array of the copper pillar positioning board to ensure that the relative position of the PCB board and the copper pillar is precisely fixed; the guide pillar provides precision guidance to ensure the accurate movement trajectory of the elbow clamp, fundamentally solving the problem of alignment accuracy that is difficult to guarantee by manual operation.

[0040] Achieving stable and consistent clamping: The elbow clamp mechanism (especially the V-groove structure at its clamping end) provides stable and repeatable mechanical clamping force, effectively avoiding the problem of inconsistent manual gripping force. The V-groove forms a surface contact with the outer diameter of the copper pillar, making the clamping more secure and preventing the copper pillar from shifting or rotating during the locking process.

[0041] Improve product quality stability: Precise positioning and consistent clamping force provide ideal conditions for electric screwdriver fastening, effectively eliminating defects such as poor screw welding and misaligned fastening caused by copper post shaking, displacement, or insufficient clamping force, and significantly improving the reliability and consistency of product connections.

[0042] Reduced labor intensity and operational difficulty: Operators only need to place the copper column and PCB board and operate the elbow clamp switch (or button), without having to exert effort to grasp and align, making operation easier and simpler, and reducing work fatigue.

[0043] Modular design with strong versatility: The fixture structure is clear, and the positioning components (copper pillar positioning plate, PCB positioning plate) can be replaced or adjusted according to different product models. The double-sided elbow clamp and guide column mechanism are universal modules with strong adaptability.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A PCB board multi-station modular fastening fixture, characterized in that, include: Base; A positioning component is disposed on the base. The positioning component includes a copper pillar positioning plate and a PCB positioning plate disposed on the copper pillar positioning plate. The two sides of the copper pillar positioning plate are provided with an array of copper pillar positioning holes for fixing the copper pillar. The dual-sided elbow clamp mechanism includes a left elbow clamp and a right elbow clamp symmetrically arranged on both sides of the positioning component, used to clamp the copper column from both sides; At least two parallel guide posts pass through the positioning assembly and connect to the double-sided elbow clamp mechanism, controlling the clamping / release stroke of the elbow clamp through precision guidance.

2. A multi-station modular fixture for PCB boards as claimed in claim 1, characterized in that: The PCB positioning plate is recessed inward to form a groove for accommodating and positioning the PCB board.

3. A multi-station modular fixture for PCB boards as claimed in claim 2, wherein: The groove is provided with corresponding through holes that match the copper pillar positioning hole array.

4. A multi-station modular fixture for PCB boards as recited in claim 1, wherein: The clamping end of the double-sided elbow clamping mechanism is provided with a V-shaped groove structure, which forms a surface contact with the outer diameter of the copper column.

5. A multi-station modular fixture for PCB boards as recited in claim 1, wherein: The left elbow clamp includes a push rod, a fixed plate, a clamping force transmission block, and a clamping plate connected to the clamping force transmission block. The push rod passes through the fixed plate and the clamping force transmission block in sequence.

6. A multi-station modular fixture for PCB boards as claimed in claim 5, wherein: An adjusting screw is provided between the fixing plate and the clamping force transmission block to adjust the distance between them, and tension springs are provided on the sides of both.

7. A multi-station modular fixture for PCB boards as claimed in any one of claims 1 to 6, characterized in that: The right elbow clamp has the same structure as the left elbow clamp.

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