High speed wire bonding tool

Abstract

This utility model discloses a high-speed wire welding fixture, relating to the field of wire processing tool technology. It includes a fixture base, at least one wire clamping cover, a rotating shaft, a latching member with at least one latching block on its surface, and at least one elastic member. The at least one wire clamping cover is rotatably mounted on at least one side of the fixture base via the rotating shaft. At least one PCB cavity is formed at a location on the fixture base along the rotation direction of the at least one wire clamping cover. The at least one elastic member movably mounts the at least one latching member onto the side of the at least one PCB cavity of the fixture base. The rotating shaft drives the wire clamping cover to rotate in a set direction and close it onto the wire surface for clamping and fixing. Simultaneously, a location on the wire clamping cover forms an adaptive fastening connection with the latching member via the latching block. When pressed by the latching block, the latching member can displace in the left-right direction and automatically reset under the elastic force of the elastic member, thereby achieving stable locking of the wire clamping cover and faster opening, resulting in higher operational efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wire processing tools, specifically a high-speed wire welding fixture. Background Technology

[0002] In high-speed wire welding production, welding fixtures are typically used to position and fix the PCB and the wires to be welded, ensuring accurate welding positions, consistent solder joints, and preventing displacement during high-temperature welding or automated operations. Currently, most commonly used wire welding fixtures in the industry employ fixed pressure plates or bolt-type limiting structures, where the wire clamping element is directly pressed onto the PCB surface using screws or slots. This structure relies on unidirectional insertion or locking during locking, lacking flexible adjustment space, resulting in high resistance during the locking process, inconvenient opening, and low operational efficiency. Furthermore, because the wire clamping cover cannot be adjusted for slight compensation based on wire thickness or solder joint position after locking, the wire is prone to slight displacement during welding, causing unstable contact between the wire and the PCB solder joints, thus affecting welding quality and easily leading to incomplete soldering or detachment. Utility Model Content

[0003] The purpose of this application is to provide a technical solution to address the problems mentioned in the background section.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A high-speed wire bonding fixture includes a fixture base, at least one wire pressing cover, a rotating shaft, a snap-fit ​​element with at least one snap-fit ​​block on its surface, and at least one elastic element. The at least one wire pressing cover is rotatably disposed on at least one side of the fixture base via the rotating shaft. At least one PCB cavity is formed at a location of the fixture base along the rotation direction of the at least one wire pressing cover. The at least one elastic element movably mounts the at least one snap-fit ​​element on the side of the at least one PCB cavity of the fixture base.

[0006] Preferably, the number of the pressure caps is arranged at N+1 intervals.

[0007] Preferably, the number of buckle blocks on the surface of the buckle is also N+1 intervals.

[0008] Preferably, it further includes a limiting member, wherein a groove is formed on the fixture base on the side of the PCB cavity, one end of the elastic member is connected to the fixture base, and the other end is connected to the buckle member, and the limiting member elastically limits the buckle member to the groove.

[0009] Preferably, the elastic element is a spring or a sheet spring.

[0010] Preferably, the fixture base is made of metal.

[0011] Preferably, at least one of the wire pressing covers is rotatably provided on the other side of the fixture base, and at least one PCB cavity is also formed at a location on the other side of the fixture base along the rotation direction of the at least one wire pressing cover. At least one elastic member movably mounts at least one of the snap-fit ​​members on the other side of the fixture base on the side of the at least one PCB cavity.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] When using this product, after the operator places the PCB into the PCB cavity of the fixture base, the wire to be soldered is accurately placed on the corresponding solder joint on the PCB. The wire clamping cover is driven by the rotating shaft to rotate in the set direction and close onto the surface of the wire to achieve clamping and fixation. At the same time, one part of the wire clamping cover forms an adaptive fastening connection with the latching component through a buckle. When the latching component is squeezed by the buckle, it can move in the left and right direction and automatically reset under the elastic force of the elastic component, thereby achieving a stable locking of the wire clamping cover and quick opening, which improves the efficiency of operation. During the soldering operation, this solution can maintain the precise positioning and stable contact between the wire and the PCB solder joint with elastic adaptive compensation, ensuring the soldering quality and efficiency and preventing cold solder joints or detachment due to displacement.

[0014] Secondly, multiple fasteners can be spaced out on one fastener of this solution, which can significantly reduce the space occupied when setting multiple pressure caps, thereby achieving a smaller welding fixture volume, which is convenient for relocation and operation by operators. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a first-person perspective perspective view of the present invention.

[0017] Figure 2 This is a second-view perspective perspective view of the present invention.

[0018] Figure 3 This is a schematic diagram of the working state of this utility model.

[0019] Figure 4 This is an exploded view of the present invention.

[0020] Figure 5 This is a side view of the multi-level distributed pressing state of this utility model.

[0021] In the diagram: 1. Fixture base; 11. PCB cavity; 12. Slide groove; 2. Wire clamp cover; 3. Shaft; 4. Buckle; 5. Elastic component; 6. Limiting component. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-5 A high-speed wire bonding fixture includes a fixture base 1, at least one wire pressing cover 2, a rotating shaft 3, a snap-fit ​​member 4 with at least one snap-fit ​​block on its surface, and at least one elastic member 5. The at least one wire pressing cover 2 is rotatably disposed on at least one side of the fixture base 1 via the rotating shaft 3. At least one PCB cavity 11 is formed at a location of the fixture base 1 along the rotation direction of the at least one wire pressing cover 2. The at least one elastic member 5 movably mounts the at least one snap-fit ​​member 4 on the side of the at least one PCB cavity 11 of the fixture base 1.

[0024] Working principle: When using this product, after the operator places the PCB into the PCB cavity 11 of the fixture base 1, the wire to be soldered is accurately placed on the corresponding solder joint position on the PCB. The wire clamping cover 2 is driven by the rotating shaft 3 to rotate in the set direction and close to the surface of the wire to achieve clamping and fixing. At the same time, one part of the wire clamping cover 2 forms an adaptive fastening connection with the buckle 4 through the buckle block. When the buckle block is squeezed, the buckle 4 can move in the left and right direction and automatically reset under the elastic force of the elastic element 5, thereby achieving a stable locking of the wire clamping cover 2 and quick opening, which improves the operation efficiency. During the soldering operation, this solution can maintain the precise positioning and stable contact of the wire and the PCB solder joint with elastic adaptive compensation, ensuring the soldering quality and efficiency and preventing the occurrence of cold solder joints or desoldering due to displacement.

[0025] Preferably, the number of the wire pressing covers 2 is N+1, that is, a multi-level distributed pressing unit is formed along the wire arrangement direction in the wire placement area of ​​the fixture base 1. Each wire pressing cover 2 is independently rotatable via a rotating shaft 3, and its size decreases sequentially from the outside to the inside, so that adjacent wire pressing covers 2 form a spacer area that can be interlocked. When wires of different specifications, positions, or unequal spacing are placed on the PCB solder joints, each wire pressing cover 2 can be independently pressed down according to the front-to-back or left-to-right differences in the wire distribution, forming a combination of local pressing and overall pressing effect through the spacer area. As a result, the synchronous positioning and fixing of any row of wires can be achieved in the same fixture. The structure of this solution does not require the traditional solution to rely on a single wide wire pressing cover 2 or multiple clamping operations, nor does it require flipping or changing the fixture to press multiple rows of wires. Instead, multiple wire pressing covers 2 arranged at N+1 intervals fit together, so that wires with different distributions are pressed into their corresponding welding point positions in one closing action, keeping the axial posture of each wire consistent and the contact surface flat, thereby significantly improving the adaptability, clamping efficiency and welding point consistency of multi-wire parallel welding.

[0026] Preferably, the number of buckle blocks on the surface of the buckle 4 is also N+1 spaced, that is, multiple sets of spaced buckle block structures are formed on the surface of the buckle 4 along the distribution direction of the wire pressure cover 2. The position of each buckle block corresponds one-to-one with the corresponding wire pressure cover 2. When the wire pressure covers 2 of different sizes or positions are closed by the rotating shaft 3, their side support rods can contact the corresponding buckle blocks and generate a buckling action, thereby achieving synchronous or independent locking during the closing process of the multi-level wire pressure covers 2. This structure allows each wire pressure cover 2 to obtain independent clamping and holding force at different wire arrangement positions, without sharing a single buckle point or central locking mechanism, avoiding uneven clamping caused by off-center load. Furthermore, the N+1 intermittently arranged buckles are spatially distributed in a multi-segment manner, without needing to be nested or interlocked with each other. Locking can be completed simply by forming a precise meshing contact between the side rod of the wire pressure cover 2 and the corresponding buckle. Through the combined action with the internal elastic element 5, each buckle can move slightly in the left and right directions when pressed to adapt to different angles or heights of the pressing path, and automatically reset after release. This ensures that the multi-wire pressure cover 2 structure can be quickly, stably, and segmentally fastened under any wire arrangement, realizing the synchronous pressing and high-precision positioning of multiple sets of wires by the entire fixture.

[0027] Preferably, it also includes a limiting member 6. A groove 12 is formed on the fixture base 1 on the side of the PCB cavity 11. One end of the elastic member 5 is connected to the fixture base 1, and the other end is connected to the buckle 4. The limiting member 6 elastically limits the buckle 4 in the groove 12, so that the buckle 4 can generate a controlled linear displacement along the direction of the groove 12 and maintain a stable movement trajectory during the fastening or release of the wire pressing cover 2. When the buckle block of the wire pressing cover 2 applies pressure to the buckle 4, the buckle 4 slides into the groove 12 under the stretching action of the elastic member 5 to achieve self-adaptation. After the buckle is released, it returns to its initial position along the slide groove 12 under the combined action of the restoring force of the elastic element 5 and the limiting element 6. This avoids jamming, buckle misalignment or disengagement caused by excessive free displacement or abnormal offset angle. The structure of this solution mechanically constrains the movement range of the buckle 4 through the limiting element 6, so that the elastic deformation is always kept within the design stroke. This ensures smooth buckling and stable elastic force, and also ensures accurate positioning of the buckle 4 during repeated actions. This improves the durability, structural reliability and consistency of multiple cycles of operation of the entire fixture structure.

[0028] Preferably, the elastic element 5 is a spring or a spring sheet. When the buckle of the wire cover 2 applies pressure to the buckle 4, the spring or spring sheet undergoes controllable elastic deformation, causing the buckle 4 to produce linear displacement along the slide groove 12 and achieve flexible clearance. After the buckling is completed, the spring or spring sheet releases its stored energy and quickly pushes the buckle 4 back to its initial position, thereby achieving self-resetting locking. This structure utilizes the recoverable deformation characteristics of the elastic element 5 to ensure that the buckle 4 maintains continuous and stable controlled movement during the force application and unloading process. It can automatically compensate for position deviations under different angles or different strengths of buckling, and ensure that the buckling action is smooth and reliable, avoiding jamming, displacement or loosening caused by uneven external force or frequent operation. Overall, the locking and releasing process of the wire cover 2 is smoother and more durable and maintains long-term stable buckling strength.

[0029] Preferably, the fixture base 1 is made of metal, specifically high-strength aluminum or stainless steel. The high yield strength and dimensional stability of the metal material ensure that the structural accuracy and surface flatness are maintained during long-term high-frequency opening and closing and repeated clamping, preventing deformation and wear caused by thermal expansion and contraction or local stress concentration. At the same time, the metal material has excellent thermal conductivity and corrosion resistance, which can effectively disperse local heat during welding operations and resist chemical corrosion by flux or high-temperature solder, thereby extending the overall service life of the fixture and maintaining the positioning accuracy after multiple clampings, ensuring the stability and consistency of wires and PCB solder joints during the welding process.

[0030] Preferably, at least one of the wire pressing covers 2 is rotatably provided on the other side of the fixture base 1. At least one PCB cavity 11 is also formed on one side of the fixture base 1 along the rotation direction of the at least one wire pressing cover 2. At least one of the elastic members 5 movably installs at least one of the snap-fit ​​members 4 on the other side of the fixture base 1 on the side of the at least one PCB cavity 11. That is, a welding fixture unit with the same structure as the front side is constructed on the back side of the fixture base 1, so that the fixture has a double-sided symmetrical pressing function. After the PCB and wire are pressed or welded and positioned on one side, the fixture can be directly flipped and the same process operation can be performed on the other side, thereby realizing the collaborative operation of double station or double-sided welding on a single fixture. This structure arranges two independent but structurally identical wire clamping systems on the same fixture base 1, so that the wire clamping covers 2, fasteners 4, and elastic elements 5 on both sides have the same mechanical characteristics and movement paths in terms of rotation, fastening, and limiting. This maintains the overall structural balance, improves fixture utilization, and avoids time loss caused by changing multiple fixtures. At the same time, the double-sided arrangement can also be used for synchronous positioning and clamping of double-layer PCBs or back-to-back wire groups, so that the wires on both sides can be accurately fixed in their respective cavities, thereby improving the stability, processing efficiency, and structural compatibility of multi-layer circuit soldering.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-speed wire welding fixture, characterized in that: The fixture includes a fixture base, at least one wire pressing cover, a rotating shaft, a fastener with at least one fastening block on its surface, and at least one elastic member. The at least one wire pressing cover is rotatably disposed on at least one side of the fixture base via the rotating shaft. At least one PCB cavity is formed at a location of the fixture base along the rotation direction of the at least one wire pressing cover. The at least one elastic member movably mounts the at least one fastener on the side of the at least one PCB cavity of the fixture base.

2. The high-speed wire welding fixture according to claim 1, characterized in that: The number of pressure caps is set at N+1 intervals.

3. The high-speed wire welding fixture according to claim 2, characterized in that: The number of fastener blocks on the surface of the fastener is also N+1 intervals.

4. The high-speed wire welding fixture according to claim 3, characterized in that: It also includes a limiting member. A groove is opened on the fixture base on the side of the PCB cavity. One end of the elastic member is connected to the fixture base, and the other end is connected to the buckle. The limiting member elastically limits the buckle to the groove.

5. The high speed wire bonding tool of claim 1, wherein: The elastic element is a spring or a sheet spring.

6. The high speed wire bonding tool of claim 1, wherein: The fixture base is made of metal.

7. The high-speed wire welding fixture according to any one of claims 1-6, characterized in that: The other side of the fixture base is also rotatably provided with at least one of the wire pressing covers. At least one PCB cavity is also formed at a location on the other side of the fixture base along the rotation direction of the at least one wire pressing cover. At least one elastic member movably mounts at least one of the snap-fit ​​members on the other side of the fixture base at the side of the at least one PCB cavity.

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