Crimping device for tinned flat copper wire

Abstract

The invention relates to the technical field of electrical accessories, and discloses a tin-plated flat copper wire crimping device which comprises a rack, an air cylinder is arranged at the top of the rack, an air guide device is arranged at the output end of the air cylinder, a supporting frame is fixedly installed in the rack, two limiting rods are slidably connected to the middle of the supporting frame, and an upper die is installed at the bottoms of the two limiting rods. A lower die is arranged at the bottom of the rack, a damping device is arranged at the bottom of the rack, the upper die comprises a pressure transmission part, a transmission part, a magnetic pushing part and a pressing part, the pressure transmission part comprises a thick barrel and a thin barrel, the thin barrel is slidably connected to the top of the thick copper, a pressing column is slidably connected to the top of the thin barrel, and a clamping disc is fixedly connected to the bottom of the pressing column. According to the tin-plated flat copper wire crimping device, the effect that the larger the crimping pressure is, the larger the clamping force is is achieved, transverse deformation of the joint of the tin-plated flat copper wires is avoided, the joint of the tin-plated flat copper wires can be prevented from being damaged due to sudden increase of the clamping force, and the quality and the yield of tin-plated flat copper wire crimping are improved.

Description

Technical Field

[0001] This invention relates to the field of electrical components technology, and in particular to a crimping device for tin-plated flat copper wire. Background Technology

[0002] Tinned flat copper wire, due to its excellent conductivity, good corrosion resistance, and high mechanical strength, is widely used in electrical equipment such as drive motors for new energy vehicles, industrial transformers, high and low voltage switchgear, and reactors. It is a core conductive component for current transmission and winding within these devices. During the assembly of these electrical devices, the connection of tinned flat copper wire is typically achieved through a crimping process—that is, by applying mechanical pressure to the end of the tinned flat copper wire to a terminal, connector, or the joint of another tinned flat copper wire to form a stable electrical path and mechanical structure.

[0003] Currently, most tin-plated flat copper wire crimping devices on the market are hydraulically or pneumatically driven. Their basic structure includes a frame, power source, upper die, lower die, and a simple clamping mechanism. During operation, the power source drives the upper die to press down, working in conjunction with the lower die to apply pressure to the copper wire joint. Simultaneously, the clamping mechanism positions the copper wire. However, the most critical problem with existing devices is that the crimping pressure and clamping force cannot achieve synchronous adaptive linkage. The clamping force is often a fixed value or simply adjusted by a single spring. When the crimping pressure increases according to the workpiece specifications to ensure a tight crimp, the clamping force cannot increase synchronously. This causes the tin-plated flat copper wire joint to be easily deformed and shifted laterally under pressure. Furthermore, even when the clamping force is adjusted, some devices are prone to step-like abrupt changes, damaging the tin plating layer or substrate at the copper wire joint. This severely affects the shape regularity and yield of the crimped product, making it difficult to meet the requirements of high-precision electrical connections.

[0004] Therefore, to address the above problems, a crimping device for tin-plated flat copper wire is proposed. Summary of the Invention

[0005] To overcome the above deficiencies, the present invention provides a crimping device for tin-plated flat copper wire, which aims to improve the problem that the crimping pressure and clamping force of the existing crimping device are difficult to achieve synchronous adaptive linkage, which easily leads to lateral deformation and displacement at the joint or damage to the tin plating layer.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A crimping device for tin-plated flat copper wire includes a frame, a cylinder is provided at the top of the frame, an air guide device is provided at the output end of the cylinder, a support frame is fixedly installed inside the frame, two limit rods are slidably connected in the middle of the support frame, an upper mold is installed at the bottom of the two limit rods, a lower mold is provided at the bottom of the frame, and a shock absorption device is provided at the bottom of the frame. The upper mold includes a pressure transmission component, a transmission component, a magnetic pushing component, and a pressing component. The pressure transmission component includes a coarse cylinder and a fine cylinder. The fine cylinder is slidably connected to the top of the coarse cylinder. A pressure column is slidably connected to the top of the fine cylinder, and a retaining plate is fixedly connected to the bottom of the pressure column. Multiple magnetic blocks are arranged on the outer side of the retaining plate. An annular partition is fixedly connected to the bottom of the fine cylinder. Two magnetic blocks are symmetrically arranged at the bottom of the annular partition. A conical spring and a conical spring are fixedly connected to the top of the annular partition and the inner bottom of the coarse cylinder, respectively. The tops of both the conical spring and the conical spring are fixedly connected to the bottom of the retaining plate. As a further description of the above technical solution: The transmission component includes two sets of magnetic rods. The two magnetic rods of the same set are slidably connected to the top of the inner part of the coarse cylinder and the top of the clamping plate, respectively, and extend outward through the coarse cylinder and the thin cylinder. The other ends of the two magnetic rods are respectively fixedly connected to a toothed plate one and a toothed plate two. Both ends of the pressing component are provided with limit posts, and the inner part of the limit post is rotatably connected to a rotating outer ring. The inner part of the rotating outer ring is rotatably connected to a rotating inner column, and the outer side of the rotating inner column is fixedly connected to a gear one. The outer side of the rotating outer ring is fixedly connected to a gear two. Gear one meshes with toothed plate one, and gear two meshes with toothed plate two. As a further description of the above technical solution: The magnetic actuator includes a rotating disk, the top of which is fixedly connected to the bottom of the rotating inner column. A strong magnetic block is slidably connected inside the rotating disk. A top plate is fixedly connected to the bottom of the rotating outer ring. The outer side of the top plate is rotatably connected to the top of the rotating disk, and a cam is fixedly connected to the bottom of the top plate. A strong magnetic block is provided on the outer side of the cam. As a further description of the above technical solution: The end of the first strong magnetic block is arc-shaped and matches the outer end shape of the second strong magnetic block. The outer diameter of the cam gradually increases along the circumferential direction, and the maximum outer diameter is connected to the short side of the outer end of the second strong magnetic block. As a further description of the above technical solution: The pressing component includes a mounting platform, the top of which is fixedly connected to the bottom of two limiting rods, and a connecting platform is fixedly connected to the middle of the mounting platform. The bottom of the coarse cylinder is fixedly connected to the top of the connecting platform, and a pressure plate is fixedly connected to the bottom of the connecting platform. Two magnetic clamping blocks are slidably connected to the bottom of the pressure plate. As a further description of the above technical solution: The arc-shaped end of the first strong magnetic block and the arc-shaped end of the second strong magnetic block have opposite magnetic properties, and the outer end of the magnetic clamp block and the outer end of the first strong magnetic block have the same magnetic properties. As a further description of the above technical solution: The air guiding device includes an installation pile, the bottom of which is fixedly connected to the top of the support frame, and an air guiding pipe is fixedly connected to the top of the installation pile. The top of the air guiding pipe is connected to the output end of the cylinder and an air intake valve is provided inside. A push rod is slidably connected inside the air guiding pipe, and a piston is provided on the outside of the push rod. The bottom of the push rod is connected to the top of the pressure column. As a further description of the above technical solution: The lower mold includes a base, the bottom of which is fixedly connected to the bottom of the frame, and an overload spring is fixedly connected inside the base. A pressure plate that matches the shape of the top of the base is fixedly connected to the top of the overload spring. As a further description of the above technical solution: The top of the pressure platform and the bottom of the pressure plate are provided with interlocking anti-slip textures, and the top of the pressure platform is provided with a limiting groove that matches the shape of the magnetic clamping block. As a further description of the above technical solution: The shock absorption device includes a mounting frame, which is fixedly connected to the bottom of the frame. A sliding rod is fixedly connected inside the mounting frame. A connecting plate is slidably connected to the outside of the sliding rod, and the other end of the connecting plate is connected to the top of the mounting platform. A steel spring is provided on the outside of the sliding rod, and the top of the steel spring abuts against one end of the connecting plate. A connecting post for connecting to the bottom control console is fixedly connected to the bottom of the sliding rod.

[0007] The present invention has the following beneficial effects: In this invention, a cylinder drives the piston and push rod inside the air guide tube to move, causing the pressure column and clamping plate to compress the conical spring. This transmits the cylinder pressure to the pressure plate, increasing the pressure at the joint of the tin-plated flat copper wire as the spring compression increases. When the clamping plate descends, the magnetic block one and the upper magnetic rod repel each other, causing the inner rotating column and rotating disk to rotate. This brings the strong magnetic block one closer to the magnetic clamping block, pushing it to hold the tin-plated flat copper wire through the repulsive force, with the repulsive force gradually increasing. As the thin cylinder moves downward, the magnetic block two at the bottom of the annular partition causes the lower magnetic rod to extend outward. This extends through the toothed plate two and gear two, driving the outer ring and cam to rotate, squeezing the strong magnetic block one. Combined with the superposition of the magnetic field of the strong magnetic block two, the pushing force of the magnetic clamping block increases linearly. Ultimately, this achieves the effect that the greater the crimping pressure, the greater the clamping force. This avoids lateral deformation at the joint of the tin-plated flat copper wire, ensuring the regular shape of the crimped product, and also prevents damage to the joint of the tin-plated flat copper wire due to a sudden increase in clamping force, thus improving the quality and yield of the tin-plated flat copper wire crimping. Attached Figure Description

[0008] Figure 1 This is a three-dimensional schematic diagram of a crimping device for tin-plated flat copper wire proposed in this invention; Figure 2 This is a schematic diagram of the frame structure of the crimping device for tin-plated flat copper wire proposed in this invention; Figure 3 This is a schematic diagram of the upper mold structure of the crimping device for tin-plated flat copper wire proposed in this invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the clamping plate of a crimping device for tin-plated flat copper wire proposed in this invention; Figure 6 This is a schematic diagram of the annular partition of the crimping device for tin-plated flat copper wire proposed in this invention; Figure 7 for Figure 3 Enlarged view of point B in the middle; Figure 8 This is a schematic diagram of the magnetic actuator of a crimping device for tin-plated flat copper wire proposed in this invention; Figure 9 This is a schematic diagram of the lower mold structure of a crimping device for tin-plated flat copper wire proposed in this invention.

[0009] Legend: 1. Frame; 2. Cylinder; 3. Air guiding device; 301. Air guiding pipe; 302. Mounting pile; 303. Air inlet valve; 304. Push rod; 305. Piston; 4. Support frame; 5. Limiting rod; 6. Upper mold; 61. Pressure transmission component; 611. Coarse cylinder; 612. Fine cylinder; 613. Pressure column; 614. Clamping plate; 615. Magnetic block one; 616. Annular partition plate; 617. Magnetic block two; 618. Conical spring one; 619. Conical spring two; 62. Transmission component; 621. Magnetic rod; 622. Toothed plate one; 623. Toothed plate two; 624. Rotating inner column; 625. 626. Gear 1; 627. Rotating outer ring; 628. Gear 2; 629. Limiting post; 63. Magnetic pusher; 631. Rotating disk; 632. Strong magnetic block 1; 633. Cam; 634. Strong magnetic block 2; 64. Pressing part; 641. Mounting platform; 642. Connecting platform; 643. Pressure plate; 644. Magnetic clamping block; 7. Lower mold; 701. Base; 702. Overload spring; 703. Pressure bearing platform; 704. Anti-slip texture; 705. Limiting groove; 8. Shock absorption device; 801. Mounting bracket; 802. Slide rod; 803. Connecting plate; 804. Steel spring; 805. Connecting post. Detailed Implementation

[0010] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0011] Reference Figures 1 to 9 This invention provides an embodiment of a crimping device for tin-plated flat copper wire, comprising a frame 1. The frame 1 serves as the basic load-bearing framework of the entire device, providing a stable installation reference for each component, ensuring that the positions of each structure are relatively fixed during the crimping process, and maintaining the overall structural rigidity of the device. A cylinder 2 is installed at the top of the frame 1. The cylinder 2 is the core power source of the device, providing the driving force required for crimping through the extension and retraction of its output end, transmitting power to the air guiding device 3, and thus driving the upper mold 6 to complete the downward crimping action. The output end of the cylinder 2 is provided with an air guiding device 3, which receives the power from the cylinder 2 and transmits it to the pressure column 613. A support frame 4 is fixedly installed inside the frame 1, providing sliding support and guidance for the limiting rod 5. The limiting rod 5 can only move vertically and provides a fixing point for the mounting pile 302 of the air guiding device 3. Two limiting rods 5 are slidably connected in the middle of the support frame 4. The limiting rods 5 limit the movement trajectory of the mounting platform 641 to ensure that the upper mold 6 does not deviate or tilt during the up and down movement, and to ensure that the pressure plate 643 and the pressure bearing platform 703 of the lower mold 7 are accurately connected. The upper mold 6 is installed at the bottom of the two limiting rods 5. The upper mold 6 realizes the core function of crimping and clamping tin-plated flat copper wire. The lower mold 7 is set at the bottom of the frame 1. The lower mold 7 provides support and overload protection for the workpiece and works with the upper mold 6 to complete the crimping. The bottom of the frame 1 is equipped with a shock absorption device 8 to reduce the vibration during the crimping process and ensure the stable operation of the device.

[0012] The upper mold 6 includes a pressure transmitting component 61, a transmission component 62, a magnetic pusher component 63, and a pressing component 64. The pressure transmitting component 61 transmits and adjusts the pressing pressure, while providing power to the transmission component 62. The transmission component 62 transmits the power from the pressure transmitting component 61 to the magnetic pusher component 63, realizing the conversion of the power direction and form. The magnetic pusher component 63 converts the rotational power of the transmission component 62 into a pushing force on the magnetic clamping block 644, realizing the adjustment and superposition of the clamping force. The pressing component 64 directly contacts the workpiece, realizing the pressing and clamping actions. The pressure transmitting component 61 includes a coarse cylinder 611 and a fine cylinder 612. The coarse cylinder 611 serves as the basic frame of the pressure transmitting component 61, providing sliding space for the fine cylinder 612, and fixing the conical spring 619, which receives the pressure transmitted by the fine cylinder 612 and transmits it to the connecting platform 64. 2. The thin cylinder 612 is slidably connected to the top of the thick cylinder 611. The thin cylinder 612 provides a sliding guide for the pressure column 613 and fixes the annular partition 616 and the conical spring 618. As the thrust of the cylinder 2 increases, it slides downward to further increase the pressing pressure and realize the graded transmission of pressure. The pressure column 613 is slidably connected to the top of the thin cylinder 612. The top of the pressure column 613 is connected to the push rod 304, and the bottom is fixed to the retaining plate 614. The power of the push rod 304 is transmitted to the retaining plate 614, pushing the retaining plate 614 to compress the conical spring. The bottom of the pressure column 613 is fixedly connected to the retaining plate 614. A magnetic block 615 is installed on the outside of the retaining plate 614, and the bottom is connected to the conical spring 618 and the second conical spring 619. The spring is compressed under the push of the pressure column 613. The pressure is transmitted, and the transmission component 62 is driven by the magnetic force of the magnetic block 615 and the magnetic rod 621. Multiple magnetic blocks 615 are arranged on the outer side of the receiving plate 614. The magnetic blocks 615 have the same magnetism as the upper magnetic rod 621. As the receiving plate 614 descends and approaches the magnetic rod 621, they generate a repulsive force, pushing the magnetic rod 621 outwards and providing initial power to the transmission component 62. An annular partition 616 is fixedly connected to the bottom of the thin cylinder 612. The annular partition 616 divides the internal space of the thin cylinder 612. Simultaneously, as the thin cylinder 612 moves downwards, it drives the magnetic block 617 to approach the lower magnetic rod 621, providing secondary power to the transmission component 62 and achieving graded pressure drive. Two magnetic blocks 617 are symmetrically arranged at the bottom of the annular partition 616. The second magnetic block 617 has the same magnetism as the lower magnetic rod 621. As the thin cylinder 612 moves downward and approaches the magnetic rod 621, it generates a repulsive force, pushing the lower magnetic rod 621 outward. This provides power for the secondary transmission of the transmission component 62, further increasing the clamping force. The top of the annular partition 616 and the inner bottom of the thick cylinder 611 are respectively fixedly connected to a conical spring 618 and a conical spring 619. The first conical spring 618 is compressed as the clamping plate 614 moves downward, transmitting pressure to the annular partition 616. Simultaneously, its elastic deformation buffers and stabilizes the pressure transmission, preventing sudden pressure increases that could damage the workpiece. The second conical spring 619 works in tandem with the first conical spring 618, being compressed as the clamping plate 614 moves downward, further enhancing the stability and buffering effect of pressure transmission.Furthermore, the tops of both conical spring 618 and conical spring 619 are fixedly connected to the bottom of the retaining plate 614.

[0013] The transmission component 62 includes two sets of magnetic rods 621. The magnetic rods 621 move outward under the repulsive force of magnetic block 615 and magnetic block 617, converting magnetic force into linear motion force, driving the toothed plates 622 and 623 to move. The two magnetic rods 621 on the same side are slidably connected to the inner top of the coarse cylinder 611 and the top of the retaining plate 614, respectively, and extend outward through the coarse cylinder 611 and the fine cylinder 612. The other ends of the two magnetic rods 621 are fixedly connected to the toothed plates 622 and 623, respectively. 2. As the magnetic rod 621 moves outward, it drives the first gear 625 to rotate, converting linear motion into rotational motion and providing power to the rotating inner column 624. The second toothed plate 623, moving outward with the magnetic rod 621, drives the second gear 627 to rotate, converting linear motion into rotational motion and providing power to the rotating outer ring 626, thus achieving a two-stage transmission. Limiting posts 628 are provided at both ends of the pressing component 64. These limiting posts 628 provide rotational support and limit for the rotating outer ring 626, ensuring that the rotating outer ring 626 and the rotating inner column 624 can only rotate around their own axes, avoiding... To prevent offset during transmission and ensure transmission accuracy, the limiting post 628 is internally connected to a rotating outer ring 626. The rotating outer ring 626 rotates with the gear 627, driving the cam 633 to rotate, providing power for the further movement of the strong magnetic block 632 and achieving a linear increase in clamping force. The rotating outer ring 626 is internally connected to a rotating inner column 624. The rotating inner column 624 rotates with the gear 625, driving the rotating disk 631 to rotate, transmitting the rotational power of the gear 625 to the magnetic pusher 63, driving the strong magnetic block 632 to move. Furthermore, a gear 625 is fixedly connected to the outer side of the rotating inner column 624. The gear 625 converts the linear motion of the toothed plate 622 into the rotational motion of the rotating inner column 624, thereby changing the direction of power. A gear 627 is fixedly connected to the outer side of the rotating outer ring 626. The gear 627 converts the linear motion of the toothed plate 623 into the rotational motion of the outer ring 626, driving the cam 633 to rotate and providing a power basis for magnetic superposition. The gear 625 meshes with the toothed plate 622, and the gear 627 meshes with the toothed plate 623.

[0014] The magnetic pusher 63 includes a rotating disk 631. The rotating disk 631 rotates with the rotating inner column 624, causing the strong magnetic block 632 to rotate, gradually bringing the strong magnetic block 632 closer to the magnetic clamp 644. The magnetic repulsion force pushes the magnetic clamp 644 to clamp the workpiece. The top of the rotating disk 631 is fixedly connected to the bottom of the rotating inner column 624. The strong magnetic block 632 is slidably connected inside the rotating disk 631. As the rotating disk 631 rotates, the strong magnetic block 632 approaches the magnetic clamp 644 and generates repulsion. The force, simultaneously squeezed by cam 633 and attracted by strong magnetic block 634, moves outward, increasing the repulsive force on magnetic clamping block 644, thus gradually increasing the clamping force. A top plate is fixedly connected to the bottom of the rotating outer ring 626, providing fixed support for cam 633. The outer side of the top plate is rotatably connected to the top of the rotating disk 631, and the bottom of the top plate is fixedly connected to cam 633. Cam 633 rotates with the rotating outer ring 626, squeezing strong magnetic block 632 and pushing it to slide outward. By reducing the distance between the first strong magnetic block 632 and the magnetic clamping block 644, the repulsive force is increased. Simultaneously, the magnetic field of the second strong magnetic block 634 is superimposed, achieving a linear increase in clamping force and preventing a sudden increase in clamping force. The second strong magnetic block 634 is positioned on the outer side of the cam 633. The opposite magnetic poles of the second strong magnetic block 634 and the curved surface of the first strong magnetic block 632 attract each other. As the cam 633 rotates, the second strong magnetic block 634 gradually approaches the first strong magnetic block 632. Through magnetic field superposition, the magnetism of the first strong magnetic block 632 is enhanced, further increasing the repulsive force on the magnetic clamping block 644. To maximize the clamping force, the arc-shaped end of the first strong magnetic block 632 and the arc-shaped end of the second strong magnetic block 634 have opposite magnetic properties. The end of the first strong magnetic block 632 is arc-shaped and matches the outer end shape of the second strong magnetic block 634. The outer diameter of the cam 633 gradually increases along the circumferential direction, and the maximum outer diameter is connected to the short side of the outer end of the second strong magnetic block 634. This allows the second strong magnetic block 634 and the first strong magnetic block 632 to be smoothly joined, and the superposition of the magnetic field will not increase in a stepwise manner.

[0015] The pressing component 64 includes a mounting platform 641, which serves as a guide for the limiting rods 5 and transmits the pressure from the pressure transmitting component 61 to the connecting platform 642 and the pressure plate 643, ensuring the overall stability of the pressing component 64's movement. The top of the mounting platform 641 is fixedly connected to the bottom of the two limiting rods 5, and the connecting platform 642 is fixedly connected to the middle of the mounting platform 641. The connecting platform 642 acts as a pressure transmission carrier between the pressure transmitting component 61 and the pressure plate 643, evenly transmitting the pressure from the coarse cylinder 611 to the pressure plate 643, ensuring uniform pressure distribution on the workpiece by the pressure plate 643. The bottom of the coarse cylinder 611 is fixedly connected to the top of the connecting platform 642, and the connecting platform 642 is also fixedly connected to the top of the connecting platform 642. A pressure plate 643 is fixedly connected to the bottom of component 2. The pressure plate 643 applies the pressure transmitted by the connecting table 642 to the joint of the workpiece to realize the crimping of the tin-plated flat copper wire. At the same time, it provides sliding support for the magnetic clamping block 644 to ensure that the clamping action and the crimping action are carried out synchronously. Two magnetic clamping blocks 644 are slidably connected at the bottom of the pressure plate 643. The magnetic clamping blocks 644 slide towards the middle under the repulsive force of the strong magnetic block 632 to clamp the joint of the workpiece and prevent the workpiece from shifting laterally during the crimping process. The clamping force increases with the increase of the repulsive force of the strong magnetic block 632 to avoid damage to the workpiece. The outer end of the magnetic clamping block 644 and the outer end of the strong magnetic block 632 are magnetically identical.

[0016] The air guiding device 3 includes a mounting post 302, which fixes the air guiding pipe 301 to the top of the support frame 4, ensuring the relative position stability between the air guiding device 3 and the support frame 4 and preventing the air guiding pipe 301 from shaking and affecting the power transmission accuracy during power transmission. The bottom of the mounting post 302 is fixedly connected to the top of the support frame 4, and the top of the mounting post 302 is fixedly connected to the air guiding pipe 301. The air guiding pipe 301 serves as a channel for gas flow and power transmission, connecting the output end of the cylinder 2 and the push rod 304, providing a sealed space for the piston 305 to slide, ensuring that the gas pressure can be effectively converted into the linear motion force of the push rod 304. The top of the air guiding pipe 301 is connected to the output end of the cylinder 2 and is equipped with an intake valve 303 inside, which controls the air guiding pipe 301. The entry and exit of internal gas, and the regulation of gas pressure and flow rate, thereby controlling the movement speed and thrust of push rod 304, realize the controllable adjustment of pressing power. Push rod 304 is slidably connected inside air pipe 301. Push rod 304 transmits the sliding power of piston 305 to pressure column 613, serving as the power transmission carrier between air guiding device 3 and pressure transmission component 61, ensuring that the power of cylinder 2 can be accurately transmitted to the core pressing component. Piston 305 is provided on the outside of push rod 304. Piston 305 slides in air pipe 301, converting gas pressure into linear thrust, pushing push rod 304 to move. It is a key component for converting gas pressure into mechanical thrust, ensuring the high efficiency of power transmission. The bottom of push rod 304 is connected to the top of pressure column 613.

[0017] The lower mold 7 includes a base 701, which serves as the basic frame of the lower mold 7, ensuring the stability of the overall structure of the lower mold 7 and providing sliding space for the pressure platform 703. The bottom of the base 701 is fixedly connected to the bottom of the frame 1, and an overload spring 702 is fixedly connected inside the base 701. The overload spring 702 is compressed downwards under pressure from the pressure platform 703, buffering the pressure of the upper mold 6 through elastic deformation. When the pressure exceeds a threshold, the spring compression no longer increases, limiting the maximum pressing pressure and preventing damage to the workpiece joint due to excessive pressure, thus achieving overload protection. The top of the overload spring 702 is fixedly connected to a pressure platform 703 that matches the shape of the top of the base 701. The pressure platform 703 provides a pressing support surface for the workpiece, and a limiting opening is provided at the top. The positioning groove 705 and anti-slip texture 704, together with the magnetic clamp 644 and pressure plate 643, achieve precise positioning and anti-displacement of the workpiece, ensuring accurate pressing position. The top of the pressure platform 703 and the bottom of the pressure plate 643 are provided with interlocking anti-slip texture 704. The anti-slip texture 704 increases the friction between the pressure plate 643, the pressure platform 703 and the workpiece, preventing the workpiece from sliding and displaced during the pressing process, and ensuring the regularity of the pressing interface. The top of the pressure platform 703 is provided with a limiting groove 705 that matches the shape of the magnetic clamp 644. The limiting groove 705 provides movement limit for the magnetic clamp 644, ensuring that the magnetic clamp 644 can accurately clamp the joint of the workpiece, while limiting the lateral displacement of the workpiece, further improving the pressing positioning accuracy.

[0018] The vibration damping device 8 includes a mounting frame 801, which serves as the basic frame of the vibration damping device 8, ensuring the stability of the installation position of the vibration damping components and preventing structural shaking during vibration damping. The mounting frame 801 is fixedly connected to the bottom of the frame 1, and a sliding rod 802 is fixedly connected inside the mounting frame 801. The sliding rod 802 provides sliding guidance for the connecting plate 803, restricting the connecting plate 803 to slide only vertically along the sliding rod 802, ensuring linear transmission of vibration damping action and avoiding disorder in the vibration transmission direction. The connecting plate 803 is slidably connected to the outside of the sliding rod 802, and the other end of the connecting plate 803 is connected to the top of the mounting platform 641. The connecting plate 803 transmits the vibration generated by the downward pressure of the mounting platform 641 to the steel spring. 804 is the intermediate carrier for vibration transmission, realizing effective vibration transmission and buffering. A steel spring 804 is provided on the outer side of the slide rod 802, and the top of the steel spring 804 abuts against one end of the connecting plate 803. The steel spring 804 is compressed as the connecting plate 803 moves down, absorbing vibration energy through elastic deformation, reducing the impact of vibration on the mounting platform 641, pressure plate 643 and workpiece, and ensuring the stability of the pressing process. The bottom of the slide rod 802 is fixedly connected to a connecting pile 805 for connecting to the bottom control console. The connecting pile 805 fixes the vibration damping device 8 to the external equipment, and at the same time provides bottom support for the steel spring 804, ensuring that the steel spring 804 can stably realize the vibration damping function and avoid the overall displacement of the device during the pressing process.

[0019] Working principle: In use, first place the tin-plated flat copper wires to be joined on the pressure table 703, then open cylinder 2. The operation of cylinder 2 causes the piston 305 in the air guide pipe 301 to move downward once, driving the push rod 304 downward, thereby causing the pressure column 613 to move downward synchronously. At the same time, the operation of cylinder 2 also drives the entire upper mold 6 to move downward, thus realizing the docking between the pressure plate 643 and the pressure table 703. Then, the downward movement of the pressure column 613 causes the locking plate 614 to engage with the conical spring 618. Spring 619 is compressed, thereby transmitting the subsequent pressure from cylinder 2 to pressure plate 643 through the conical spring. This causes the pressure at the joint of the two tin-plated flat copper wires to increase as the compression of conical springs 618 and 619 increases. Simultaneously, due to the descent of the retaining plate 614, the magnetic block 615 on the outer side of the retaining plate 614 gradually approaches the upper magnetic rod 621. Furthermore, through the repulsive force of like magnets, the retaining plate 614 gradually moves downwards... The upper magnetic rod 621 moves outward synchronously, which in turn drives the toothed plate 622 to move synchronously. This, in turn, drives the rotating inner column 624 to rotate through the gear 625, and transmits the rotation to the rotating disk 631, causing the rotating disk 631 to rotate. This causes the outer end of the strong magnetic block 632 to gradually approach the outer end of the magnetic clamp 644. Since the outer ends of the strong magnetic block 632 and the magnetic clamp 644 are of the same polarity, they repel each other and push the magnetic clamp 644 towards the center, thus impacting the tin-plated flat copper wire. The joint is clamped, and the repulsive force gradually increases as the rotating disk 631 rotates, which in turn increases the clamping force. This initially achieves the goal that the greater the pressing force, the greater the clamping force to prevent misalignment during the joining process of the tin-plated flat copper wire. When the clamping disk 614 is fully embedded in the annular partition 616 at the bottom of the thin cylinder 612, the strong magnetic block 632 is fully aligned with the magnetic clamping block 644, forming the maximum repulsive force. At the same time, the conical spring 618 reaches its maximum deformation, forming the maximum pressure and clamping force in the initial stage.

[0020] When the thrust of cylinder 2 increases again, the entire thin cylinder 612 moves downward, causing the magnetic rod 621 below to extend outward through the action of the magnetic block 617 at the bottom of the annular partition 616. The meshing of the toothed plate 623 and gear 627 causes the outer ring 626 to rotate. The rotation of the outer ring 626 drives the cam 633 inside the rotating disk 631 to rotate. Since the cam 633 has a gradually expanding shape, its rotation causes the strong magnetic block 632 to move outward through compression. This increased distance and the superposition of the magnetic field of the strong magnetic block 634 linearly increase the thrust on the magnetic clamp 644. Simultaneously, when the thin cylinder 612 is completely embedded in the thick cylinder 611, i.e. When the annular partition 616 engages with the bottom of the coarse cylinder 611, the deformation of the two conical springs reaches its maximum value, the pressure provided by the pressure plate 643 reaches its maximum value, and at the same time, the toothed plate 623 also reaches its maximum stroke position, causing the cam 633 to rotate 180°, which in turn causes the strong magnetic block 634 to fully engage with the strong magnetic block 632, and the magnetic force is superimposed to its maximum value, thereby causing the pushing force on the two magnetic clamping blocks 644 to reach its maximum value, thus making the clamping force reach its maximum value. Ultimately, the greater the contact pressure between the upper mold 6 and the lower mold 7, the greater the clamping force on the tin-plated flat copper wire, thus avoiding lateral deformation at the joint of the tin-plated flat copper wire, and the clamping force will not increase suddenly in a stepwise manner to avoid damaging the joint of the tin-plated flat copper wire.

[0021] Furthermore, during the joining process, the overload spring 702 of the lower mold 7 prevents excessive pressure from the upper mold 6 from damaging the joint of the tin-plated flat copper wire. The staggered anti-slip texture 704 on the bottom of the pressure plate 643 and the top of the pressure platform 703 also prevents misalignment to a certain extent. At the same time, during the joining process, the downward pressing action of the pressure plate 643 is transmitted through the connecting plate 803 and acts on the steel spring 804, thereby reducing the impact of vibration generated during the joining process on the crimping operation of the tin-plated flat copper wire.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A crimping device for tin-plated flat copper wire, comprising a frame (1), characterized in that: A cylinder (2) is provided at the top of the frame (1), and an air guide device (3) is provided at the output end of the cylinder (2). A support frame (4) is fixedly installed inside the frame (1). Two limit rods (5) are slidably connected in the middle of the support frame (4). An upper mold (6) is installed at the bottom of the two limit rods (5). A lower mold (7) is provided at the bottom of the frame (1). A shock absorption device (8) is provided at the bottom of the frame (1). The upper mold (6) includes a pressure transmission component (61), a transmission component (62), a magnetic pusher component (63), and a pressing component (64). The pressure transmission component (61) includes a coarse cylinder (611) and a fine cylinder (612). The fine cylinder (612) is slidably connected to the top of the coarse cylinder. A pressure column (613) is slidably connected to the top of the fine cylinder (612), and a retaining plate (614) is fixedly connected to the bottom of the pressure column (613). Multiple magnetic blocks are arranged on the outer side of the retaining plate (614). (615) A ring-shaped partition (616) is fixedly connected to the bottom of the thin cylinder (612). Two magnetic blocks (617) are symmetrically arranged at the bottom of the ring-shaped partition (616). A conical spring (618) and a conical spring (619) are fixedly connected to the top of the ring-shaped partition (616) and the inner bottom of the thick cylinder (611), respectively. The tops of the conical spring (618) and the conical spring (619) are both fixedly connected to the bottom of the snap-fit ​​plate (614).

2. The crimping device for tin-plated flat copper wire according to claim 1, characterized in that: The transmission component (62) includes two sets of magnetic rods (621). The two magnetic rods (621) of the same set are slidably connected to the top of the inner part of the coarse cylinder (611) and the top of the retaining plate (614), respectively, and extend outward through the coarse cylinder (611) and the thin cylinder (612). The other ends of the two magnetic rods (621) are respectively fixedly connected to a toothed plate one (622) and a toothed plate two (623). Limiting posts (62) are provided at both ends of the pressing component (64). 8), and the inner rotating ring (626) is rotatably connected to the inner rotating ring (626), and the inner rotating column (624) is rotatably connected to the inner rotating column (624). Gear 1 (625) is fixedly connected to the outer side of the inner rotating column (624), and gear 2 (627) is fixedly connected to the outer side of the outer rotating ring (626). Gear 1 (625) meshes with toothed plate 1 (622), and gear 2 (627) meshes with toothed plate 2 (623).

3. The crimping device for tin-plated flat copper wire according to claim 2, characterized in that: The magnetic actuator (63) includes a rotating disk (631), the top of which is fixedly connected to the bottom of the rotating inner column (624). A strong magnetic block (632) is slidably connected inside the rotating disk (631). A top plate is fixedly connected to the bottom of the rotating outer ring (626). The outer side of the top plate is rotatably connected to the top of the rotating disk (631), and a cam (633) is fixedly connected to the bottom of the top plate. A strong magnetic block (634) is provided on the outer side of the cam (633).

4. The crimping device for tin-plated flat copper wire according to claim 3, characterized in that: The end of the first strong magnetic block (632) is arc-shaped and matches the outer end shape of the second strong magnetic block (634). The outer diameter of the cam (633) gradually increases along the circumferential direction, and the maximum outer diameter is connected to the short side of the outer end of the second strong magnetic block (634).

5. The crimping device for tin-plated flat copper wire according to claim 3, characterized in that: The pressing component (64) includes a mounting platform (641), the top of which is fixedly connected to the bottom of two limiting rods (5), and a connecting platform (642) is fixedly connected to the middle of the mounting platform (641). The bottom of the coarse cylinder (611) is fixedly connected to the top of the connecting platform (642), and a pressure plate (643) is fixedly connected to the bottom of the connecting platform (642). Two magnetic clamps (644) are slidably connected to the bottom of the pressure plate (643).

6. The crimping device for tin-plated flat copper wire according to claim 5, characterized in that: The arc end of the first strong magnetic block (632) and the arc end of the second strong magnetic block (634) have opposite magnetic properties, and the outer end of the magnetic clamp (644) and the outer end of the first strong magnetic block (632) have the same magnetic properties.

7. The crimping device for tin-plated flat copper wire according to claim 1, characterized in that: The air guiding device (3) includes a mounting pile (302), the bottom of which is fixedly connected to the top of the support frame (4), and the top of the mounting pile (302) is fixedly connected to an air guiding pipe (301). The top of the air guiding pipe (301) is connected to the output end of the cylinder (2) and an air intake valve (303) is provided inside. A push rod (304) is slidably connected inside the air guiding pipe (301), and a piston (305) is provided on the outside of the push rod (304). The bottom of the push rod (304) is connected to the top of the pressure column (613).

8. The crimping device for tin-plated flat copper wire according to claim 5, characterized in that: The lower mold (7) includes a base (701), the bottom of which is fixedly connected to the bottom of the frame (1), and an overload spring (702) is fixedly connected inside the base (701). A pressure plate (703) that is adapted to the shape of the top of the base (701) is fixedly connected to the top of the overload spring (702).

9. The crimping device for tin-plated flat copper wire according to claim 8, characterized in that: The top of the pressure plate (703) and the bottom of the pressure plate (643) are provided with interlocking anti-slip textures (704), and the top of the pressure plate (703) is provided with a limiting groove (705) that matches the shape of the magnetic clamp (644).

10. The crimping device for tin-plated flat copper wire according to claim 5, characterized in that: The shock absorption device (8) includes a mounting frame (801), which is fixedly connected to the bottom of the frame (1). A sliding rod (802) is fixedly connected inside the mounting frame (801). A connecting plate (803) is slidably connected to the outside of the sliding rod (802), and the other end of the connecting plate (803) is connected to the top of the mounting platform (641). A steel spring (804) is provided on the outside of the sliding rod (802), and the top of the steel spring (804) abuts against one end of the connecting plate (803). A connecting post (805) for connecting to the bottom control console is fixedly connected to the bottom of the sliding rod (802).

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