Front and back welding wire clamp mechanism of terminal wire welding machine
By employing wire-splitting blocks and independent clamping mechanisms in the terminal wire welding machine, the problem of wire misalignment caused by simultaneous release of the wire by the clamping mechanism is solved, achieving efficient and precise welding results and improving automation and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN GONGMING AUTOMATION TECH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-05-19
AI Technical Summary
When the clamping mechanism of existing terminal wire bonding machines releases two wires at the same time, it can easily cause one wire to deviate from the solder joint, resulting in poor welding or insufficient precision.
It adopts a wire splitting block and an independent clamping mechanism. The clamp is driven by a cylinder to engage with the wire splitting block, and the wires are clamped separately. Only when needed, one wire is released while the other wire remains clamped and fixed, preventing the wires from shifting.
It improves welding accuracy and stability, simplifies operation, enhances automation and production efficiency, and meets the market's diverse welding needs.
Smart Images
Figure CN224264433U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automated terminal wire welding setup technology, and in particular to a front and rear wire welding clamp mechanism for a terminal wire welding machine. Background Technology
[0002] Because the current market demand for terminal wires varies, and the requirements for the welding position of wires on the same terminal shell are different, the welding ends of two wires are stretched into long and short wires according to the needs to meet the welding requirements of different PCB panels.
[0003] Currently, most terminal wire welding machines on the market use a clamping mechanism to pick up two wires and pull them to a designated position. Then, the two wires are released simultaneously, allowing a length-to-length pulling mechanism to pull one of the wires back, creating a length-to-length ratio to meet welding requirements. However, when the clamping mechanism releases both wires at the same time, it can easily cause the other wire to move along with the first wire while it is being pulled, leading to the other wire deviating from the welding point and resulting in poor welding or incomplete welding. Utility Model Content
[0004] Therefore, it is necessary to address the issue that when a clamping mechanism simultaneously releases two wires for pulling, it can easily cause the other wire, which is not fixed, to move along with the first wire, leading to the other wire deviating from the solder joint and resulting in poor or incomplete soldering. To address this, a front and rear wire bonding clamping mechanism for a terminal wire bonding machine is provided. This mechanism separates the wires using a wire separating block, and then uses two independent clamps in conjunction with the separating block to clamp or release the corresponding wires. This ensures that when pulling one wire, the other wire remains clamped and fixed, preventing the simultaneous pulling of both wires.
[0005] To achieve the above objectives, the technical solution provided by this utility model is: a front and rear wire bonding clamp mechanism for a terminal wire bonding machine, comprising: a clamp mounting block and a cylinder mounting block;
[0006] Two connecting shafts are symmetrically arranged on the front side of the clip mounting block. The two connecting shafts are respectively rotatably equipped with clip 1 and clip 2 that can be clamped together. A spring is provided between clip 1 and clip 2. A first pushing block and a second pushing block are slidably arranged on the upper end of the clip mounting block to push clip 1 and clip 2 respectively. The front end of the first pushing block and the second pushing block are both equipped with a wedge, and the two wedges are located between clip 1 and clip 2.
[0007] One end of the cylinder mounting block is equipped with a first push cylinder and a second push cylinder, which are respectively connected to the first push block and the second push block. The other end of the cylinder mounting block is equipped with a wire separating block for separating wires. Clips 1 and 2 are respectively clamped with the wire separating block to hold the separated wires. The front side of the wire separating block is equipped with a wire pressing plate for pressing the wires. The first push block and the second push block are driven by the first push cylinder and the second push cylinder, so that the inclined block moves forward to push clips 1 and 2 to clamp the wires with the wire separating block. If it is necessary to release one of the wires, one of the push cylinders is reset, the corresponding inclined block moves backward, and under the push force of the opening spring, the corresponding clip moves away from the wire separating block and releases the wire.
[0008] In some embodiments, the upper side of the clamp mounting block is provided with two guide blocks spaced apart, the two guide blocks are provided with a first connecting hole, the cylinder mounting block is fixed on the two guide blocks, and the cylinder mounting block is provided with a second connecting hole corresponding to the first connecting hole.
[0009] In some embodiments, the first push block and the second push block are provided with movable grooves corresponding to the two guide blocks respectively. The first push block and the second push block slide back and forth along the guide blocks. The first push block and the second push block away from the inclined block are respectively provided with connecting grooves. The output ends of the first push cylinder and the second push cylinder are inserted into the corresponding connecting grooves, and the output end of the inserted end is provided with a locking nut.
[0010] In some embodiments, the clamp mounting blocks at the connection points of the two connecting shafts are provided with positioning holes, bearings are installed in the positioning holes, one end of the connecting shaft is connected to the bearing, the connecting shaft is provided with shaft fixing blocks, and clamps 1 and 2 are connected to the corresponding shaft fixing blocks.
[0011] In some embodiments, clips 1 and 2 include a connecting part and a clamping part, the connecting part and the clamping part are L-shaped, the connecting part has a connecting boss, the side wall of the connecting boss has a first slot for engaging with the shaft fixing block, the connecting part has a shaft connecting hole below the boss for fixing with the connecting shaft, and the side wall of the connecting part has a limiting hole for fixing the opening spring; the clamping part has a clamping groove for accommodating part of the wire.
[0012] In some embodiments, the wire splitter includes a fixing part and a wire splitter part. The fixing part is fixed to the cylinder mounting block and has a first stepped strip-shaped connecting groove. The wire splitter part is L-shaped, with the thickness of the lower end of the wire splitter part being less than the thickness of the upper end, and the lower end is used to clamp the wire with clips 1 and 2.
[0013] In some embodiments, a protrusion is formed on the upper end of the pressure plate along the thickness direction, the protrusion has a second stepped strip-shaped connecting groove, and the side wall of the protrusion has a second slot that engages with the wire branching part, and the contact surface between the pressure plate and the wire is an inclined surface.
[0014] In some embodiments, the cylinder mounting block connected to the first and second push cylinders is provided with a vertical plate. The vertical plate has an active hole for the output ends of the first and second push cylinders to pass through. The cylinder mounting block at the end away from the vertical plate is provided with a limiting groove. The fixing part is inserted into the limiting groove, and a third connecting hole corresponding to the first stepped strip connecting groove is provided in the limiting groove.
[0015] The beneficial effects of this utility model are as follows: By setting clips 1 and 2 on the clip mounting block, and a wire separating block located between clips 1 and 2 on the cylinder mounting block, along with a first and second pushing cylinders that respectively drive clips 1 and 2 to clamp onto the wire separating block, the separate wires are fixed by individually driving the corresponding clips to clamp onto the wire separating block. When one wire needs to be pulled, only the corresponding clip is released, while the other wire remains fixed by the other clip, effectively avoiding wire misalignment during the pulling process and improving welding accuracy and stability. Furthermore, this mechanism is rationally designed, simple in structure, and easy to operate and maintain, greatly improving the automation level and production efficiency of the terminal wire welding machine, and meeting the market's demand for efficient and precise terminal wire welding. Attached Figure Description
[0016] Figure 1 This diagram shows the positional relationship between the front and rear wire bonding clamp mechanism and the long and short wire pulling mechanism.
[0017] Figure 2 This is a schematic diagram of the structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the exploded structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the structure of clip No. 2 in this utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the dividing block in this utility model;
[0021] Figure 6 This is a schematic diagram of the structure of the medium-voltage line sheet of this utility model. Detailed Implementation
[0022] To make the above-mentioned objects, 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. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0023] Please see Figure 1 , Figure 2 and Figure 3 This embodiment provides a front and rear wire bonding clamp mechanism 1000 for a terminal wire bonding machine. The front and rear wire bonding clamp mechanism 1000 is installed on the long and short wire pulling mechanism 2000 of the terminal wire bonding machine. The front and rear wire bonding clamp mechanism 1000 includes a clamp mounting block 100 and a cylinder mounting block 110. The clamp mounting block 100 is fixed on the long and short wire pulling mechanism 2000, and two guide blocks 101 are provided on the upper side of the clamp mounting block 100 at intervals. The two guide blocks 101 are provided with a first connecting hole 102, and the cylinder mounting block 110 is provided with a second connecting hole 111 corresponding to the first connecting hole 102. The first connecting hole 102 is a threaded hole. The cylinder mounting block 110 is fixed on the clamp mounting block 100 by screws passing through the first connecting hole 102 and the second connecting hole 111 in sequence.
[0024] Specifically, two connecting shafts 120 are symmetrically arranged on the front side of the clamp mounting block 100. The two connecting shafts 120 can rotate freely and each is equipped with two clamps that can clamp each other, referred to as clamp 1 121 and clamp 2 122 respectively. In order to ensure that the two clamps can maintain a certain tension when no external force is applied, a spring 123 is also provided between clamp 1 121 and clamp 2 122.
[0025] Two push blocks, referred to as the first push block 130 and the second push block 140, are slidably mounted on the upper part of the clamp mounting block 100. These two push blocks are positioned between the clamp mounting block 100 and the cylinder mounting block 110 to effectively push clamp 1 121 and clamp 2 122. To ensure that the push blocks can push the clamps more accurately, the front ends of the first push block 130 and the second push block 140 are designed with inclined blocks 131, which are located between clamp 1 121 and clamp 2 122 to apply force more evenly during pushing.
[0026] To ensure that the first push block 130 and the second push block 140 can slide along a specific path, the first push block 130 and the second push block 140 are provided with movable grooves 132 corresponding to the two guide blocks 101; the movable grooves 132 allow the first push block 130 and the second push block 140 to slide back and forth along the guide block 101; to further ensure the stability of the push blocks, the first push block 130 and the second push block 140 at the end away from the inclined block 131 are respectively provided with connecting grooves 133.
[0027] A first push cylinder 150 and a second push cylinder 160 are provided at one end of the cylinder mounting block 110, with their output ends respectively connected to the first push block 130 and the second push block 140. To ensure that the output ends of the cylinders can be firmly connected to the push blocks, the output ends of the first push cylinder 150 and the second push cylinder 160 are inserted into the corresponding connecting grooves 133, and the output ends at the inserted end are provided with locking nuts 151.
[0028] The other end of the cylinder mounting block 110 is designed with a wire separating block 170 for separating the wires. Clips 1 (121) and 2 (122) engage with the wire separating block 170 to effectively hold the separated wires. To further ensure that the wires do not slip during clamping, a wire pressing plate 180 is specially designed on the front side of the wire separating block 170 to press the wires down.
[0029] In summary, the first push cylinder 150 and the second push cylinder 160 drive the first push block 130 and the second push block 140 to slide back and forth. When the push block slides forward, the inclined block 131 pushes the clips 121 and 22 to engage with the wire separator block 170, thereby clamping the wire. If it is necessary to release one of the wires, simply reset one of the push cylinders, and the corresponding inclined block 131 will retract. Under the pushing force of the opening spring 123, the corresponding clip will move away from the wire separator block 170, thereby releasing the wire.
[0030] To enable the rotation of the two connecting shafts 120, corresponding positioning holes are provided on the clamp mounting blocks 100 at the connection points of the two connecting shafts 120. Bearings are installed in the positioning holes, and one end of the connecting shaft 120 is connected to the bearing. The connecting shaft 120 is provided with a shaft fixing block 124. Clamps 1 and 2 are connected to the corresponding shaft fixing blocks 124. The design of the shaft fixing blocks 124 ensures that clamps 1 and 2 are securely mounted on the connecting shaft 120, preventing wobbling when clamping wires. The addition of bearings greatly reduces friction during the rotation of the connecting shaft 120, allowing the clamps to open and close more smoothly.
[0031] In one alternative implementation, please refer to 3 and Figure 4Clip 1 (121) and clip 2 (122) include a connecting part (1220) and a clamping part (1221). The connecting part (1220) and the clamping part (1221) are L-shaped. The connecting part (1220) has a connecting boss (1222). The side wall of the connecting boss (1222) has a first slot (1223) for engaging with the shaft fixing block (124). The connecting part (1220) has a shaft connecting hole below the boss for fixing the connecting shaft (120). The side wall of the connecting part (1220) has a limiting hole (1224) for fixing the opening spring (123). The clamping part (1221) has a clamping groove for accommodating part of the wire. The design of the clamping groove allows the clip to fit more tightly with the wire when clamping it, preventing the wire from slipping or moving during the welding process, thereby ensuring the accuracy and stability of the welding. One end of the opening spring 123 is fixed inside the limiting hole 1224, thus fixing the opening spring 123 between the two clamps. Through the spring's elastic force, the clamps automatically reset when the wire is released, preparing for the next clamping action. Furthermore, the design of the first slot 1223 allows the clamp to be securely engaged with the shaft fixing block 124, further enhancing the clamp's stability and reliability. The entire clamp structure is compact and reasonable, ensuring both effective clamping and easy installation and disassembly, greatly improving the working efficiency and reliability of the terminal wire bonding machine.
[0032] In an optional embodiment, please refer to 5. The wire splitter 170 includes a fixing part 171 and a wire splitter 172. The fixing part 171 is fixed to the cylinder mounting block 110 and has a first stepped strip-shaped connecting groove 173. The first stepped strip-shaped connecting groove 173 facilitates the adjustment of the position of the wire splitter 170 to cooperate with the two clips to hold the wire and facilitates the wire splitter 170 to better separate the wire. The wire splitter 172 is L-shaped, and the thickness of the lower end of the wire splitter 172 is less than the thickness of the upper end. The lower end cooperates with clips 1 and 2 to hold the wire. The wire splitter 172 is set in an L-shape to facilitate the installation of the wire pressing piece 180 and avoid the wire pressing piece 180 from interfering with the clamping pieces 1 and 2.
[0033] In one optional embodiment, the cylinder mounting block 110, connected to the connection ends of the first push cylinder 150 and the second push cylinder 160, is provided with a vertical plate 112. The vertical plate 112 is integral with the cylinder mounting block 110. The vertical plate 112 is provided with movable holes 113 for the output ends of the first push cylinder 150 and the second push cylinder 160 to pass through, so that while the vertical plate 112 fixes the first push cylinder 150 and the second push cylinder 160, it can also connect the first push cylinder 150 and the second push cylinder 160 to the corresponding first push block 130 and the second push block 140. At the end of the cylinder mounting block 110 away from the vertical plate 112, a limiting groove 114 is provided for restricting movement, wherein the fixing part 171 is inserted into the limiting groove 114. In addition, the limiting groove 114 is also provided with a third connecting hole corresponding to the first stepped strip connecting groove 173. The third connecting hole is a threaded hole. By passing screws through the first stepped strip connecting groove 173 and the third connecting hole in sequence, the wire divider block 170 is fixed on the cylinder mounting block 110. The limiting groove 114 can stably fix the wire divider block 170 on the cylinder mounting block 110, ensuring the stability of the wire divider block 170 during operation.
[0034] In an optional embodiment, please refer to 6. A protrusion 181 is formed on the upper end of the pressure piece 180 along the thickness direction. The protrusion 181 has a second stepped strip-shaped connecting groove 182. A fourth connecting hole corresponding to the second stepped strip-shaped connecting groove 182 is formed on the wire branching part 172. The fourth connecting hole is a threaded hole. The pressure piece 180 and the wire branching part 172 are fixedly connected by screws. The side wall of the protrusion 181 has a second slot 183 that engages with the wire branching part 172. The contact surface between the pressure piece 180 and the wire is inclined. The setting of the second slot 183 enhances the stability of the connection between the pressure piece 180 and the wire branching part 172, effectively preventing the pressure piece 180 from loosening or falling off during operation. The inclined setting allows the pressure piece 180 to fit more tightly with the wire, increasing the contact area and improving the pressure effect.
[0035] In summary, the working principle of the front and rear wire bonding clamp mechanism 1000 is as follows: the first push cylinder 150 and the second push cylinder 160 drive the first push block 130 and the second push block 140 respectively, causing the inclined blocks 131 on the first push block 130 and the second push block 140 to move forward. This causes the inclined blocks 131 to open the upper ends of clamp 121 and clamp 22. Since clamp 121 and clamp 22 are connected to the connecting shaft 120 respectively, the connecting shaft 120 forms a fulcrum. The lower ends of clamp 121 and clamp 222 clamp towards the wire separating block 170, clamping the two wires tightly. The long and short wire pulling mechanism 2000 drives the front and rear wire bonding clamp mechanism 1000, which holds the wires, to move downward, causing the pressure plate 1... 80. Two wires are pressed onto the PCB panel. For example, when the length of the wire held by clip 1 121 needs to be adjusted, the first push cylinder 150 drives the first push block 130 to retract, causing the inclined block 131 to move away from clip 1 121. Without any supporting force on the upper end of clip 1 121, the lower end of clip 1 121 is pushed away from the wire separating block 170 by the opening spring 123, thereby releasing the wire. This allows the wire length pulling mechanism 2000 to adjust the required wire length. Through the above settings, and by designing the first push cylinder 150 and the second push cylinder 160, as well as the cooperating first push block 130 and the second push block 140, precise driving of clip 1 121 and clip 2 122 is achieved. This design allows the clips to stably hold the wires and quickly release them when needed, providing convenience for adjusting the wire length. The design of clamps 1 (121) and 2 (122) in conjunction with the connecting shaft 120 and the opening spring 123 ensures that the clamps maintain a certain tension when no external force is applied, thereby enhancing clamping stability. Simultaneously, the addition of the shaft fixing block 124 and bearings allows the clamps to be securely mounted on the connecting shaft 120, reducing friction during rotation and extending the clamps' service life. The design of the wire separating block 170 not only facilitates wire separation but also allows for flexible adjustment of its position via the first-step strip-shaped connecting groove 173, adapting to the clamping requirements of different wires. Furthermore, the wire clamping plate 180 further enhances the stability of the wires during clamping, preventing slippage. The entire front and rear wire bonding clamp mechanism 1000 has a compact and reasonable structure, ensuring both effective clamping and easy installation and disassembly. This design significantly improves the working efficiency and reliability of the terminal wire bonding machine, reduces production costs, and has broad application prospects.
[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
Claims
1. A front and rear wire bonding clamp mechanism for a terminal wire bonding machine, characterized in that, include: Clip mounting block and cylinder mounting block; Two connecting shafts are symmetrically arranged on the front side of the clip mounting block. The two connecting shafts are respectively rotatably equipped with clip 1 and clip 2 that can be clamped together. A spring is provided between clip 1 and clip 2. A first pushing block and a second pushing block are slidably arranged on the upper end of the clip mounting block to push clip 1 and clip 2 respectively. The front end of the first pushing block and the second pushing block are both equipped with a wedge, and the two wedges are located between clip 1 and clip 2. One end of the cylinder mounting block is equipped with a first push cylinder and a second push cylinder, which are respectively connected to the first push block and the second push block. The other end of the cylinder mounting block is equipped with a wire separating block for separating wires. Clips 1 and 2 are respectively clamped with the wire separating block to hold the separated wires. The front side of the wire separating block is equipped with a wire pressing plate for pressing the wires. The first push block and the second push block are driven by the first push cylinder and the second push cylinder, so that the inclined block moves forward to push clips 1 and 2 to clamp the wires with the wire separating block. If it is necessary to release one of the wires, one of the push cylinders is reset, the corresponding inclined block moves backward, and under the push force of the opening spring, the corresponding clip moves away from the wire separating block and releases the wire.
2. The front and rear wire bonding clamp mechanism of the terminal wire bonding machine according to claim 1, characterized in that, The clamp mounting block has two guide blocks spaced apart on its upper side. The two guide blocks have a first connecting hole. The cylinder mounting block is fixed on the two guide blocks, and the cylinder mounting block has a second connecting hole corresponding to the first connecting hole.
3. The front and rear wire bonding clamp mechanism of the terminal wire bonding machine according to claim 2, characterized in that, The first and second push blocks have movable grooves corresponding to the two guide blocks respectively. The first and second push blocks slide back and forth along the guide blocks. The first and second push blocks away from the inclined block have connecting grooves respectively. The output ends of the first and second push cylinders are inserted into the corresponding connecting grooves, and the output end of the inserted end is provided with a locking nut.
4. The front and rear wire bonding clamp mechanism of the terminal wire bonding machine according to claim 1, characterized in that, Positioning holes are provided on the clamp mounting blocks corresponding to the two connecting shafts. Bearings are installed in the positioning holes. One end of the connecting shaft is connected to the bearing. The connecting shaft is provided with a shaft fixing block. Clamp No. 1 and Clamp No. 2 are connected to the corresponding shaft fixing blocks.
5. The front and rear wire bonding clamp mechanism of the terminal wire bonding machine according to claim 4, characterized in that, Clip No. 1 and clip No. 2 include a connecting part and a clamping part. The connecting part and the clamping part are L-shaped. The connecting part has a connecting boss. The side wall of the connecting boss has a first slot for engaging with the shaft fixing block. The connecting part has a shaft connecting hole below the boss for fixing the connecting shaft. The side wall of the connecting part has a limiting hole for fixing the opening spring. The clamping part has a clamping groove for accommodating part of the wire.
6. The front and rear wire bonding clamp mechanism of the terminal wire bonding machine according to claim 1, characterized in that, The wire divider includes a fixing part and a wire dividing part. The fixing part is fixed to the cylinder mounting block and has a first stepped strip-shaped connecting groove. The wire dividing part is L-shaped, with the thickness of the lower end of the wire dividing part being less than the thickness of the upper end, and the lower end is used to clamp the wire with clips No. 1 and No.
2.
7. The front and rear wire bonding clamp mechanism of the terminal wire bonding machine according to claim 6, characterized in that, The upper end of the pressure plate has a protrusion along the thickness direction. The protrusion has a second stepped strip-shaped connecting groove, and the side wall of the protrusion has a second slot that engages with the wire branch. The contact surface between the pressure plate and the wire is an inclined surface.
8. The front and rear wire bonding clamp mechanism of the terminal wire bonding machine according to claim 7, characterized in that, The cylinder mounting block connected to the first and second push cylinders is provided with a vertical plate. The vertical plate has a movable hole for the output ends of the first and second push cylinders to pass through. The cylinder mounting block away from the vertical plate is provided with a limiting groove. The fixing part is inserted into the limiting groove, and a third connecting hole corresponding to the first stepped strip connecting groove is provided in the limiting groove.