Wire clamping jig for compressing wire using power driver

Abstract

The utility model relates to wire bonder technical field especially utilize power to move piece realizes the wire clamp tool of compressing wire rod, including jig group and press down group, among them: jig group includes two interval apart jig main part, jig main part includes fixed base, dials type pressure wire spare and torsional spring, is formed with two front and back distribution's line support plate on fixed base, has set up line support groove at the middle position department of line support plate, dials type pressure wire spare and torsional spring all coaxial swing joint between two line support plates, and the both ends of torsional spring are elastic and abut on dials type pressure wire spare and fixed base respectively, realize the compression of wire rod of pressure wire department through the elastic force provided by torsional spring, need not rely on the strong force joint structure, cooperate press down group through the automatic opening and closing mode of pneumatic cylinder drive, reduced the operation difficulty when wire rod put in and take out, avoided the wire rod to pull and damage because of strong force joint, effectively protected wire rod insulating layer and internal conductor, promoted product pass rate.

Description

Technical Field

[0001] This utility model relates to the field of wire bonding machine technology, and in particular to a wire clamping fixture that uses a power actuating component to clamp the wire. Background Technology

[0002] In the manufacturing process of data cables, the wire bonding process between the wire and the metal terminals is a crucial step in ensuring the conductivity and structural stability of the data cable. Its processing precision and efficiency directly affect the overall production quality and capacity of the data cable. With the increasing automation in manufacturing, wire bonding machines are now widely used to automate this process, replacing traditional manual operations and significantly improving production efficiency while reducing labor costs.

[0003] Specifically, the automated process of existing wire bonding machines is typically as follows: First, the wire is cut to the specific dimensions required for production. Then, the cut wire is conveyed to the working area of ​​the wire bonding machine. The wire bonding machine is equipped with multiple processing stations arranged sequentially. Each station corresponds to a series of continuous processing steps, including wire cutting, stripping, splitting, transferring, terminal welding, and inspection. A conveyor line is installed along the arrangement of the processing stations, with multiple wire clamping fixtures installed at intervals on the conveyor line. In actual processing, the cut wires are clamped one by one onto the wire clamping fixtures. Through the cyclical movement of the conveyor line, the wire clamping fixtures and the clamped wires are sequentially moved through each processing station to complete the corresponding processing operations. After all the above processing steps are completed, the wire with welded metal terminals is removed from the wire clamping fixtures of the wire bonding machine and transferred to a molding machine. The molding machine performs injection molding on the connection between the wire and the metal terminals, ultimately forming a semi-finished data cable that meets the usage requirements.

[0004] However, in the automated production process of existing wire bonding machines, there are still technical problems that urgently need to be solved regarding the docking and unloading of wires with wire clamping fixtures. Traditional wire clamping fixtures mainly adopt a snap-fit ​​structure design, which clamps and fixes the wires through snap-fit ​​force. In practical applications, when positioning and docking the wires with the wire clamping fixture, or when removing the wires from the fixture after processing, a large driving force is required to overcome the clamping force of the snap-fit ​​structure to complete the wire insertion or removal operation. During this process, a large driving force can easily cause unnecessary pulling forces between the wire and the wire clamping fixture. This can not only damage the insulation layer or internal conductor of the wire, affecting the product quality of the data cable, but more seriously, if the driving force is not properly controlled or there is a slight deviation in the clamping structure, the wire may not be able to be fully clamped into the positioning groove of the wire clamping fixture, causing the wire to shift or wobble during subsequent processing, affecting processing accuracy; or the wire may not be able to be smoothly removed from the wire clamping fixture after being clamped, causing production to stop, reducing production efficiency, and may even damage the wire or clamping fixture due to forced material removal, increasing production costs.

[0005] In summary, the traditional snap-fit ​​wire clamping fixtures in existing wire bonding machines have problems such as high operational difficulty, damage to the wires, inaccurate positioning, and difficulty in picking up materials in practical applications, which restrict the stability and efficiency of automated data cable production. Therefore, there is an urgent need to propose an improved technical solution to solve the above-mentioned technical defects. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0007] A wire clamping fixture that uses a power actuation element to clamp wires includes a fixture assembly and a pressing assembly, wherein: The jig assembly includes two spaced-apart jig bodies. Each jig body includes a fixed base, a toggle-type wire pressing component, and a torsion spring. The fixed base has two wire-holding plates arranged opposite each other. A wire-holding groove is formed in the middle of the wire-holding plates. The toggle-type wire pressing component and the torsion spring are coaxially and movably connected between the two wire-holding plates, and the two ends of the torsion spring elastically abut against the toggle-type wire pressing component and the fixed base, respectively. One end of the toggle-type wire pressing component has a wire-pressing part that acts between the two wire-holding grooves. The toggle-type wire pressing component flips the wire-pressing part between the two wire-holding grooves by the elastic force of the torsion spring. The other end of the toggle-type wire pressing component has a toggle part that connects to the lower pressing group. The two jig assemblies are symmetrically arranged so that the toggle parts of both jig assemblies are located between the two jig assemblies. The pressing assembly includes a fixed upright plate, a lifting cylinder mounted on the upright plate, and a pressing component connected to the piston end of the lifting cylinder. The pressing component has a pressing part formed on it that abuts above the two actuating parts. The pressing part applies a force to the actuating parts that overcomes the torsion spring force through the driving of the lifting cylinder.

[0008] Preferably, the wire rack plate has a shaft hole, and the toggle-type wire pressing component is provided with a connecting shaft. The connecting shaft is rotatably connected to the shaft hole, so that the toggle-type wire pressing component is rotatably connected between the two wire rack plates through the connecting shaft and the shaft hole.

[0009] Preferably, the lower part of the toggle-type pressure piece is formed with two spaced-apart pivot seats, the connecting shaft is connected to the two pivot seats, and the torsion spring is located between the two pivot seats.

[0010] Preferably, an adapter block is also fixedly installed between the two cable trays, and the adapter block and the toggle-type wire clamp are located on both sides of the cable tray.

[0011] Preferably, a linear guide rail is vertically installed on the upright plate, and two sliders are slidably connected on the linear guide rail. One slider is fixedly connected to a movable plate, a lifting cylinder is fixedly installed on the movable plate, and a pressing component is fixedly connected to the other slider. Limiting protrusions are formed on the sides of both the pressing component and the movable plate, and the two limiting protrusions are distributed with a back-and-forth clearance. A U-shaped component is also installed on the upright plate, and the limiting protrusions are confined within the U-shaped component.

[0012] Preferably, the upper end of the pressing member is vertically formed with an extension portion, and the ends of the extension portion extend along both sides to form two pressing portions.

[0013] Compared with the prior art, the beneficial effects of this utility model are: The wire clamping section uses the elastic force provided by the torsion spring to press the wire, eliminating the need for a strong clamping structure. Combined with the automated opening and closing mechanism of the lower clamping unit driven by a cylinder, this reduces the difficulty of wire insertion and removal, avoids wire pulling damage caused by strong clamping, effectively protects the wire insulation layer and internal conductor, and improves product yield. Furthermore, the wire tray of the fixture group works precisely with the clamping section to keep the wire on the same plane at all times. The stable elasticity of the torsion spring ensures the wire remains stable during transport and processing, avoiding processing errors caused by positioning deviations and improving processing accuracy. In addition, the lower clamping unit is cylinder-driven, eliminating the need for manual application of large driving forces. This not only reduces labor intensity but also prevents damage to the fixture or wire caused by improper manual operation, minimizing production downtime and improving overall production efficiency.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model installed on a wire bonding machine; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the fixture assembly in this utility model; Figure 4 This is a schematic diagram of the structure of the toggle-type wire pressing component and the torsion spring in this utility model; Figure 5 This is a schematic diagram of the disassembled structure of the lower pressure assembly in this utility model.

[0017] The reference numerals and names in the figure are as follows: Fixture assembly 10, pressing assembly 20, upright plate 21, lifting cylinder 22, pressing component 23, pressing part 231, extension part 232, linear guide rail 24, slider 25, movable plate 26, limiting protrusion 27, U-shaped part 28, fixture body 30, fixed base 31, wire support plate 311, wire support trough 312, shaft hole 313, adapter block 314, toggle-type wire pressing component 32, wire pressing part 321, toggle part 322, connecting shaft 323, rotating shaft seat 324, torsion spring 33, wire welding machine 40, wire conveyor line 50. Detailed Implementation

[0018] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Please see Figure 1-5 In this embodiment of the invention, a wire clamping fixture that uses a power actuating component to clamp the wire includes a fixture assembly 10 and a pressing assembly 20. Primarily functioning on the wire conveyor line 50 of the wire bonding machine 40, taking the wire conveyor line 50 as a chain conveyor line as an example, the fixture group 10 has multiple sets, and these multiple sets of fixture groups 10 are evenly connected to the chain conveyor line, circulating with the chain conveyor line. During operation, the fixture groups 10 can sequentially dock with the wire processing stations on the wire bonding machine 40, thereby performing a series of continuous processing steps on the wire, such as stripping, splitting, transferring, welding terminals, and testing. There are two pressing groups 20, both fixed on the wire bonding machine 40, and the two pressing groups 20 are respectively distributed at the beginning and end of the conveyor line. The pressing group 20 at the beginning opens the fixture group 10, allowing the wire to be placed into the fixture group 10; the pressing group 20 at the end opens the fixture group 10, allowing the processed wire to be removed from the fixture group 10. Wherein: The jig assembly 10 includes two spaced-apart jig bodies 30. Each jig body 30 includes a fixed base 31, a toggle-type wire pressing component 32, and a torsion spring 33. Two wire-holding plates 311 are formed on the fixed base 31, arranged in a front-to-back configuration. A wire-holding groove 312 is formed in the middle of each wire-holding plate 311. The toggle-type wire pressing component 32 and the torsion spring 33 are coaxially and movably connected between the two wire-holding plates 311, with both ends of the torsion spring 33 elastically abutting against the toggle-type wire pressing component 32 and the torsion spring 33, respectively. Fixed base 31; one end of the toggle-type wire pressing member 32 is formed with a wire pressing part 321 that acts between two wire mounting grooves 312. The toggle-type wire pressing member 32 flips the wire pressing part 321 into the space between the two wire mounting grooves 312 by the elastic force of the torsion spring 33; the other end of the toggle-type wire pressing member 32 is formed with a toggle part 322 that connects to the lower pressing group 20. The two jig groups 10 are symmetrically arranged so that the toggle parts 322 of the two jig groups 10 are both located between the two jig groups 10. The pressing assembly 20 includes a vertical plate 21 for fixing, a lifting cylinder 22 mounted on the vertical plate 21, and a pressing member 23 connected to the piston end of the lifting cylinder 22. The pressing member 23 has a pressing part 231 formed on it, which is connected to the two actuating parts 322. The pressing part 231 applies a force to the actuating part 322 to overcome the elastic force of the torsion spring 33 through the driving of the lifting cylinder 22.

[0020] When the fixture assembly 10 moves to the beginning of the conveyor line, the lifting cylinder 22 of the beginning pressing assembly 20 drives the pressing member 23 to move downward. The pressing part 231 of the pressing member 23 applies a downward force to the actuating part 322 of the two symmetrically arranged actuating wire pressing members 32 in the fixture assembly 10. This force overcomes the elastic force of the torsion spring 33, causing the actuating wire pressing member 32 to rotate around the coaxial connection point, driving its pressing part 321 to rotate out from between the wire mounting grooves 312 of the two wire mounting plates 311, thereby opening the fixture assembly 10. The operator or automated equipment can put the wire to be processed into the wire mounting groove 312. Then, the lifting cylinder 22 drives the pressing member 23 to reset, the torsion spring 33 restores its elastic deformation, drives the actuating wire pressing member 32 to rotate in the opposite direction, and the pressing part 321 rotates back into the wire mounting grooves 312, pressing and fixing the wire in the wire mounting grooves 312. Afterwards, the chain conveyor line drives the fixture group 10 to connect with the stripping, splitting, transfer, terminal welding, and inspection processing stations of the wire bonding machine 40 in sequence to complete a series of processing steps. When the fixture group 10 moves to the end of the conveyor line, the end pressing group 20 repeats the action of the beginning pressing group 20, and drives the toggle-type wire pressing component 32 to flip and open the fixture group 10 again so that the processed wire can be taken out from the wire rack trough 312. This completes one wire clamping and processing cycle.

[0021] In the above technical solution, the elastic force provided by the torsion spring 33 achieves the clamping of the wire by the wire pressing part 321, eliminating the need for a strong clamping structure. Combined with the automated opening and closing method of the lower pressing group 20 driven by a cylinder, the difficulty of inserting and removing the wire is reduced, avoiding wire pulling damage caused by strong clamping, effectively protecting the wire insulation layer and internal conductor, and improving product qualification rate. Furthermore, the wire-holding groove 312 of the fixture group 10 cooperates with the wire pressing part 321 to form precise positioning, keeping the wire always on the same plane. The stable elasticity of the torsion spring 33 ensures the wire remains stable during conveying and processing, avoiding processing errors caused by positioning deviation and improving processing accuracy. In addition, the lower pressing group 20 is cylinder-driven, eliminating the need for manual application of large driving forces, which not only reduces manual labor intensity but also avoids damage to the fixture or wire caused by improper manual operation, reducing production downtime and improving overall production efficiency. This overall structure consists of conventional components such as a fixed base 31, a toggle-type wire pressing component 32, a torsion spring 33, and a cylinder. It has a simple structure, is easy to process and maintain, can effectively control manufacturing costs and subsequent maintenance costs, and is suitable for the long-term stable operation of large-scale automated production lines.

[0022] Please see Figure 3-4The cable tray 311 has a shaft hole 313, and the toggle-type wire pressing component 32 is provided with a connecting shaft 323. The connecting shaft 323 is rotatably connected to the shaft hole 313, so that the toggle-type wire pressing component 32 is rotatably connected between the two cable trays 311 through the connecting shaft 323 and the shaft hole 313. Compared with the traditional clearance fit or simple hinge method, the matching structure of the shaft hole 313 and the connecting shaft 323 can form a more reliable rotation constraint, avoid the lateral displacement or shaking of the toggle-type wire pressing component 32 during the rotation around the shaft, ensure that the pressing part 321 can correspond to the position of the cable tray 312, and maintain a stable pressure distribution when pressing the wire, preventing damage or loosening of the wire due to uneven local stress caused by rotation deviation.

[0023] The lower part of the toggle-type wire pressing component 32 has two spaced-apart pivot seats 324. The connecting shaft 323 is connected to the two pivot seats 324, and the torsion spring 33 is located between the two pivot seats 324. The two spaced pivot seats 324 can provide two-point support for the connecting shaft 323. Compared with the single-point support structure, this enhances the load-bearing capacity of the connecting shaft 323 and prevents the connecting shaft 323 from bending and deforming when subjected to the elastic force of the torsion spring 33 or the force of the pressing group 20. This ensures that the flipping action of the toggle-type wire pressing component 32 is always smooth. Furthermore, by confining the torsion spring 33 between the two pivot seats 324, the pivot seats 324 can provide lateral restraint for the torsion spring 33, preventing lateral displacement or misalignment of the torsion spring 33 during compression or rebound. This ensures that the torsion spring 33 can always apply a stable and precisely directional elastic force to the toggle-type wire pressing component 32.

[0024] Please see Figure 3-4 An adapter block 314 is also fixedly installed between the two cable trays 311. The adapter block 314 and the toggle-type wire pressing part 32 are located on both sides of the cable tray 312. The adapter block 314 can be designed specifically according to the diameter and shape characteristics of different specifications of wires. It forms a three-sided enclosure limiting structure with the cable tray 312 and the wire pressing part 321. While the wire pressing part 321 applies a pressing force, the adapter block 314 forms a lateral support for the wire, which effectively prevents the wire from shifting or twisting laterally due to vibration or external impact during transportation or processing. It is especially suitable for clamping and fixing easily deformable wires such as multi-core wires and irregularly shaped cross-section wires.

[0025] Please see Figure 5A linear guide rail 24 is vertically mounted on the upright plate 21. Two sliders 25 are slidably connected to the linear guide rail 24. One slider 25 is fixedly connected to a movable plate 26. A lifting cylinder 22 is fixedly mounted on the movable plate 26. A pressing component 23 is fixedly connected to the other slider 25. Limiting protrusions 27 are formed on the sides of both the pressing component 23 and the movable plate 26. The two limiting protrusions 27 are distributed with a back-and-forth clearance. A U-shaped component 28 is also installed on the upright plate 21, and the limiting protrusions 27 are confined within the U-shaped component 28. The cooperation between the linear guide rail 24 and the two sliders 25 provides precise guidance for the lifting movement and avoids downward pressure. If component 23 wobbles or jams during the lifting process, it ensures that the pressing part 231 can accurately act on the actuating part 322. The movable plate 26 and the pressing part 23 are limited by the limiting protrusion 27 within the chamfered part 28, and the front and rear clearance distribution ensures the independence of the lifting action. When the lifting cylinder 22 is driven, both the lifting cylinder 22 and the pressing part 23 are in an active state relative to the vertical plate 21. That is, through the cooperation mechanism of the limiting protrusion 27 and the chamfered part 28, the lifting cylinder 22 and the pressing part 23 can operate within a smaller height range, thereby further improving the compactness of the entire mechanism.

[0026] Please see Figure 5 The upper end of the pressing component 23 is vertically formed with an extension 232, the ends of which extend along both sides to form two pressing parts 231. Driven by the lifting cylinder 22, the two pressing parts 231 simultaneously apply a uniform force to the two actuating parts 322, ensuring that the two actuating wire pressing components 32 rotate synchronously. This avoids imbalance in the opening and closing of the fixture assembly 10 due to asynchronous driving on one side, thus preventing wire misalignment or jamming during clamping or release. Simultaneously, the vertical design of the extension 232 allows the pressing parts 231 to precisely align with the force points of the actuating parts 322, reducing force loss and minimizing the risk of component deformation. Furthermore, the symmetrically extended pressing parts 231 are highly compatible with the layout of the fixture assembly 10, allowing for adaptation to the fixture assembly 10's operating trajectory without additional adjustments to the pressing assembly 20, simplifying equipment assembly and debugging processes.

[0027] 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 exemplary 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.

Claims

1. A wire clamping fixture that uses a power actuating element to clamp wires, characterized in that, Includes a jig assembly (10) and a pressing assembly (20), wherein: The jig assembly (10) includes two spaced-apart jig bodies (30). Each jig body (30) includes a fixed base (31), a toggle-type wire pressing component (32), and a torsion spring (33). The fixed base (31) has two wire-holding plates (311) arranged opposite to each other. A wire-holding groove (312) is provided in the middle of the wire-holding plate (311). The toggle-type wire pressing component (32) and the torsion spring (33) are coaxially and movably connected between the two wire-holding plates (311), and the two ends of the torsion spring (33) elastically abut against the toggle-type wire pressing component (32) and the torsion spring (33) respectively. Fixed base (31); One end of the toggle-type wire pressing member (32) is formed with a wire pressing part (321) that acts between two wire racks (312). The toggle-type wire pressing member (32) flips the wire pressing part (321) between the two wire racks (312) by the elastic force of the torsion spring (33); The other end of the toggle-type wire pressing member (32) is formed with a toggle part (322) that connects to the lower pressing group (20). The two jig groups (10) are symmetrically arranged so that the toggle parts (322) of the two jig groups (10) are located between the two jig groups (10). The pressing assembly (20) includes a fixed upright plate (21), a lifting cylinder (22) mounted on the upright plate (21), and a pressing member (23) connected to the piston end of the lifting cylinder (22). The pressing member (23) has a pressing part (231) formed on it, which is connected to the two actuating parts (322). The pressing part (231) applies a force to the actuating part (322) to overcome the elastic force of the torsion spring (33) by the driving of the lifting cylinder (22).

2. The wire clamping fixture for clamping wires using a power actuating element according to claim 1, characterized in that, A shaft hole (313) is provided on the wire rack plate (311), and a connecting shaft (323) is provided on the toggle type wire pressing component (32). The connecting shaft (323) is rotatably connected to the shaft hole (313), so that the toggle type wire pressing component (32) is rotatably connected between the two wire rack plates (311) through the connecting shaft (323) and the shaft hole (313).

3. A wire clamping fixture for clamping wires using a power actuating element according to claim 2, characterized in that, The lower part of the toggle-type pressure piece (32) is formed with two spaced-apart pivot seats (324), a connecting shaft (323) is connected to the two pivot seats (324), and a torsion spring (33) is located between the two pivot seats (324).

4. A wire clamping fixture for clamping wires using a power actuating element according to claim 1, characterized in that, An adapter block (314) is also fixedly installed between the two cable trays (311). The adapter block (314) and the toggle-type wire clamp (32) are located on both sides of the cable tray (312).

5. A wire clamping fixture for clamping wires using a power actuating element according to claim 1, characterized in that, A linear guide rail (24) is vertically mounted on the upright plate (21). Two sliders (25) are slidably connected to the linear guide rail (24). One slider (25) is fixedly connected to a movable plate (26). A lifting cylinder (22) is fixedly mounted on the movable plate (26). A pressing component (23) is fixedly connected to the other slider (25). Limiting protrusions (27) are formed on the sides of both the pressing component (23) and the movable plate (26). The two limiting protrusions (27) are distributed back and forth. A U-shaped component (28) is also installed on the upright plate (21). The limiting protrusions (27) are confined within the U-shaped component (28).

6. A wire clamping fixture for clamping wires using a power actuating element according to claim 1, characterized in that, The upper end of the pressing part (23) is vertically formed with an extension (232), and the ends of the extension (232) extend along both sides to form two pressing parts (231).

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