Automatic guiding nickel-chrome wire straightening device

Abstract

The invention relates to the field of brazing processing, in particular to an automatic guiding nickel chrome wire straightening device. Comprising a positioning plate arranged in the middle of a main frame, the upper end of the positioning plate is provided with a multi-angle bending mechanism for bending nickel chrome wires, the multi-angle bending mechanism comprises an arc-shaped frame and a movable arc-shaped buckle plate, the arc-shaped frame is provided with an auxiliary guiding mechanism, a plurality of limiting wheels and lifting wheels, the main guiding mechanism at the upper end of the main frame comprises a carrying frame and two abutting frames, the abutting frames are provided with guiding rubber wheels, and the guiding rubber wheels are arranged on the supporting frames. Two clamping air cylinders are arranged beside the main guide mechanism, the position is adjusted through the three-axis moving mechanism, the device can accurately adapt to welding spots of different distances, the multi-angle bending mechanism can flexibly adjust the shape of the nickel chrome wire, the main guide mechanism and the clamping air cylinders guarantee stable conveying of the nickel chrome wire, the auxiliary guide mechanism efficiently completes bending operation, the automation degree is high, and the production efficiency is improved. In addition, the problem of large current can be avoided, the production safety is improved, the production cost is reduced, and the product quality and the production efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the field of brazing processing, and specifically to an automatically guided nickel-chromium wire aligner. Background Art

[0002] In the production and manufacturing processes of products such as electronic devices and electrical components, nickel-chromium wires are often used to achieve conductive connections between welding points. The traditional connection method is to directly weld the nickel-chromium wire between two welding points. However, when the straight-line distance between two welding points is very short, direct welding will bring many problems. Due to the short distance, the nickel-chromium wire used is short and its resistance value is small. According to Ohm's law, at the same voltage, a small resistance value will result in a large current passing through the two welding points.

[0003] The excessive current will have a series of adverse effects on the product. On the one hand, the large current may generate too much heat, causing the temperature around the welding point to rise sharply, which may damage the surrounding electronic components and affect the performance and stability of the product. For example, in some precision circuit boards, too high a temperature may cause the parameters of some sensitive components to change, resulting in circuit failures; in automotive electronic control units, high temperatures may also cause short circuits in the lines, posing serious safety hazards. On the other hand, the large current may also accelerate the aging of the nickel-chromium wire and the welding point, shortening the service life of the product. Being in a large current state for a long time, the nickel-chromium wire may fuse, resulting in product failure, increasing the equipment maintenance cost and replacement frequency.

[0004] To solve the above problems, some nickel-chromium wire aligning devices have emerged on the market one after another, but these devices have many defects. Some of the existing aligners have complex structural designs, including a large number of redundant components, which not only increase the manufacturing cost of the equipment, but also significantly increase the failure rate of the equipment and the difficulty of maintenance. Moreover, these complex devices are extremely inconvenient to operate, and operators need to undergo long-term professional training to master them proficiently, greatly restricting the improvement of production efficiency. In addition, the existing aligning devices perform poorly in terms of adaptability and cannot well meet the needs of welding points with different distances. In actual production, the distances between welding points of different products vary. Existing devices often require a large amount of manual adjustment and component replacement, and even some devices simply cannot adapt to welding points with specific distances, not only increasing the production cost, but also the frequent adjustments will cause production interruptions, seriously reducing the production efficiency and making it difficult to meet the requirements of modern large-scale production. Summary of the Invention

[0005] Based on this, in view of the problems in the prior art, it is necessary to provide an automatically guided nickel-chromium wire aligner.

[0006] To solve the problems in the prior art, the technical solution adopted by the present invention is: Automatically guided nickel-chromium wire aligner, comprising: A positioning plate arranged in the middle of the main frame. At the upper end of the positioning plate, there is a multi-angle bending mechanism for bending the nickel-chromium wire. The multi-angle bending mechanism includes an arc-shaped frame for positioning the end of the nickel-chromium wire. At the upper end of the arc-shaped frame, there is a movable arc-shaped buckle plate, and the arc-shaped buckle plate fits the shape of the arc-shaped frame. A secondary guiding mechanism is arranged on the arc-shaped frame. The secondary guiding mechanism includes a number of limiting wheels, and the number of limiting wheels is rotatably arranged at equal intervals on one side of the arc-shaped buckle plate close to the arc-shaped frame. A number of lifting wheels are formed in an equidistant array on one side of the arc-shaped frame close to the arc-shaped buckle plate. At the upper end of the main frame, there is a main guiding mechanism. The main guiding mechanism includes a carrying frame and two pressing frames. The carrying frame is fixedly connected to the upper end of the main frame. The two pressing frames are slidably arranged on the upper end of the carrying frame. A number of guiding rubber wheels are rotatably arranged in an equidistant array on one side of the two pressing frames close to each other. On one side of the main guiding mechanism close to the secondary guiding mechanism, two clamping cylinders are arranged in sequence. The clamping cylinders are adjusted in position through a three-axis moving mechanism.

[0007] Further, the multi-angle bending mechanism includes a main motor, a motor frame, a limiting disc, a secondary frame, a secondary motor, a secondary gear, a positioning gear, an arc-shaped ring, an arc-shaped gear ring, a secondary motor, a secondary gear and a secondary support. The main motor is fixedly connected to the upper end of the positioning plate through the motor frame. The secondary frame is rotatably connected to the motor frame and one end is fixedly connected to the output end of the main motor. The limiting disc is fixedly connected to one side of the motor frame close to the secondary frame. The limiting disc is rotatably connected to the secondary frame. The secondary motor is fixedly connected to the other end of the secondary frame. The secondary gear is coaxially fixedly connected to the output end of the secondary motor. The secondary shaft is rotatably connected to the inside of the secondary frame. The arc-shaped ring is arranged beside the motor frame. The secondary shaft is fixedly connected to one side of the arc-shaped ring close to the center of the circle. The positioning gear is coaxially fixedly connected to the secondary shaft and meshes with the secondary gear. When the secondary gear drives the positioning gear to rotate, the arc-shaped ring rotates along the axis direction of the secondary shaft. The secondary support is slidably connected to the arc-shaped ring. The secondary motor is fixedly connected to the secondary support. The arc-shaped gear ring is coaxially fixedly connected to the arc-shaped ring. The secondary gear is coaxially fixedly connected to the output end of the secondary motor. The secondary gear meshes with the arc-shaped gear ring. The arc-shaped frame is fixedly connected to the upper end of the secondary support.

[0008] Further, the multi-angle bending mechanism further includes two limiting sliders. Limiting grooves are formed on both sides of the arc-shaped ring. The limiting sliders are fixedly connected to the secondary support and are slidably connected to the limiting grooves.

[0009] Further, the main guiding mechanism further includes two pushing cylinders, two top frames, two power motors and a number of main belt wheels. The two top frames are respectively fixedly connected to the upper ends of the two pressing frames. The pushing cylinders are fixedly arranged on the upper end of the carrying frame and the output ends are fixedly connected to the pressing frames. The power motors are fixedly connected to the upper ends of the top frames. A number of main belt wheels are arranged at equal intervals at the lower end of the top frames and respectively correspond to a number of guiding rubber wheels one by one. The main belt wheels are coaxially fixedly connected to the guiding rubber wheels. Adjacent two main belt wheels are connected by belt transmission. The main belt wheel close to the power motor is coaxially fixedly connected to the output end of the power motor.

[0010] Furthermore, a number of anti-slip grooves are formed in the guiding rubber wheels in an equiangular array along the circumferential direction.

[0011] Furthermore, the secondary guiding mechanism further includes an electric push rod, an extrusion rack, an extrusion gear and a flipping gear. The electric push rod is arranged beside the arc-shaped frame and fixedly connected to the secondary support. The extrusion rack is fixedly connected to the output end of the electric push rod. The extrusion gear is rotatably connected to the side of the arc-shaped frame and meshes with the extrusion rack. The flipping gear is coaxially fixedly connected to the lower end of the arc-shaped buckle plate. The flipping gear meshes with the extrusion gear. A pin is fixedly connected to one side of the arc-shaped frame close to the electric push rod. A limiting through hole is formed in the extrusion rack, and the limiting through hole is slidably connected to the pin.

[0012] Furthermore, the secondary guiding mechanism further includes two main magnets, two secondary magnets and a number of tension belts. The two main magnets are respectively fixedly connected to the upper end of the arc-shaped frame. The two secondary magnets are respectively fixedly connected to the upper end of the arc-shaped buckle plate. The secondary magnet and the main magnet attract each other magnetically when the arc-shaped buckle plate and the arc-shaped frame approach each other. One end of each of the number of tension belts is hinged to the side wall of the arc-shaped frame, and the other end is hinged to the side wall of the arc-shaped buckle plate.

[0013] Furthermore, the secondary guiding mechanism further includes a driving motor, a driving gear, a number of main gears and a number of reversing gears. The driving motor is fixedly connected to the upper end of the arc-shaped buckle plate. The driving gear is rotatably connected to the arc-shaped buckle plate and coaxially fixedly connected to the output end of the driving motor. The number of main gears are respectively coaxially fixedly connected to the number of limiting wheels. A reversing gear is rotatably arranged on one side of two adjacent main gears close to each other. The reversing gear meshes with the main gear.

[0014] The beneficial effects of the present invention compared with the prior art are as follows: Firstly: The multi-angle bending mechanism of the present device can drive the arc-shaped frame to move at multiple angles. Through the coordinated operation of the main motor, the secondary motor and the tertiary motor, the nickel-chromium wire can be deformed correspondingly, so as to adapt to solder joints at different distances. In actual production, the distances of the welding points of different products vary greatly. This device can automatically adjust the bending angle and shape of the nickel-chromium wire according to the preset parameters without frequent manual adjustment, greatly improving the flexibility and efficiency of production and being able to meet diverse production requirements; Secondly: In the present device, the main guiding mechanism pushes the pressing frame through the air cylinder, so that the guiding rubber wheels limit and traction the nickel-chromium wire. At the same time, the anti-slip grooves on the guiding rubber wheels increase the friction with the nickel-chromium wire, ensuring that the nickel-chromium wire will not slip or move during the conveying process. The two clamping air cylinders intermittently clamp the nickel-chromium wire under the adjustment of the three-axis moving mechanism, further ensuring the stability of the movement of the nickel-chromium wire. This stable conveying method can improve the bending accuracy of the nickel-chromium wire, reduce the defective rate and improve the product quality; Thirdly, the auxiliary guiding mechanism in this device can effectively guide and bend the nickel-chromium wire. After the arc-shaped buckle plate is buckled on the arc-shaped frame, the rotation of the limiting wheel can quickly and accurately complete the bending of the nickel-chromium wire. Moreover, the entire bending process has a high degree of automation, reducing the time and error of manual operation. At the same time, the coordinated movement of the multi-angle bending mechanism can achieve bending of complex shapes, meeting the design requirements of different products. Brief Description of the Drawings

[0015] Figure 1 is the front view of the embodiment; Figure 2 is the three-dimensional structure schematic diagram of the embodiment; Figure 3 is the half-sectional view of the three-dimensional structure of the embodiment; Figure 4 is Figure 3 the enlarged view of the structure at A in Figure 5 is the three-dimensional structure schematic diagram of the multi-angle bending mechanism in the embodiment; Figure 6 is the three-dimensional structure schematic diagram of the main guiding mechanism in the embodiment; Figure 7 is the exploded three-dimensional structure schematic diagram of the main guiding mechanism in the embodiment; Figure 8 is the three-dimensional structure schematic diagram of the auxiliary guiding mechanism in the embodiment.

[0016] The reference numerals in the drawings are: 1, nickel-chromium wire; 2, main frame; 3, positioning plate; 4, multi-angle bending mechanism; 5, main motor; 6, motor frame; 7, limiting disc; 8, auxiliary frame; 9, auxiliary motor; 10, auxiliary gear; 11, positioning gear; 12, arc-shaped ring; 13, limiting groove; 14, secondary shaft; 15, arc-shaped gear ring; 16, secondary motor; 17, secondary gear; 18, secondary support; 19, limiting slider; 20, arc-shaped frame; 21, arc-shaped buckle plate; 22, main guiding mechanism; 23, supporting frame; 24, pressing frame; 25, pushing cylinder; 26, top frame; 27, power motor; 28, main belt pulley; 29, guiding rubber wheel; 30, anti-slip groove; 31, auxiliary guiding mechanism; 32, limiting wheel; 33, lifting wheel; 34, electric push rod; 35, pressing gear; 36, pressing rack; 37, limiting perforation; 38, pin; 39, flipping gear; 40, driving motor; 41, driving gear; 42, main gear; 43, reversing gear; 44, main magnet; 45, auxiliary magnet; 46, tension belt; 47, clamping cylinder; 48, three-axis moving mechanism. Detailed Description of the Embodiment

[0017] To further understand the features, technical means, specific purposes, and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Reference Figures 1 to 8 , an automatic guiding nickel-chromium wire aligner, comprising: A positioning plate 3 arranged in the middle of the main frame 2, and a multi-angle bending mechanism 4 for bending the nickel-chromium wire 1 is arranged at the upper end of the positioning plate 3. The multi-angle bending mechanism 4 includes an arc-shaped frame 20 for positioning the end of the nickel-chromium wire 1. An arc-shaped clamping plate 21 (as Figure 2 shown) is arranged at the upper end of the arc-shaped frame 20. The arc-shaped clamping plate 21 fits the shape of the arc-shaped frame 20. A secondary guiding mechanism 31 is arranged on the arc-shaped frame 20. The secondary guiding mechanism 31 includes a plurality of limiting wheels 32. The plurality of limiting wheels 32 are rotatably arranged at equal intervals along the side of the arc-shaped clamping plate 21 close to the arc-shaped frame 20. A plurality of lifting wheels 33 are formed in an equidistant array on the side of the arc-shaped frame 20 close to the arc-shaped clamping plate 21. A main guiding mechanism 22 is arranged at the upper end of the main frame 2. The main guiding mechanism 22 includes a supporting frame 23 and two pressing frames 24. The supporting frame 23 is fixedly connected to the upper end of the main frame 2. The two pressing frames 24 are slidably arranged at the upper end of the supporting frame 23. A plurality of guiding rubber wheels 29 are rotatably arranged in an equidistant array on the side of the two pressing frames 24 close to each other. Two clamping cylinders 47 are sequentially arranged on the side of the main guiding mechanism 22 close to the secondary guiding mechanism 31. The clamping cylinders 47 are adjusted in position through a three-axis moving mechanism 48.

[0019] When the device is in operation, when the nickel-chromium wire 1 is pulled by the main guiding mechanism 22, the two pressing frames 24 will approach the nickel-chromium wire 1 and limit the nickel-chromium wire 1 through a plurality of guiding rubber wheels 29. Subsequently, the two clamping cylinders 47 will intermittently clamp the guided nickel-chromium wire 1 to prevent the nickel-chromium wire 1 from moving erratically. When the nickel-chromium wire 1 moves to the upper end of the arc-shaped frame 20, a plurality of lifting wheels 33 will lift the nickel-chromium wire 1 (as Figure 4As shown in the figure), ensure that the nickel-chromium wire 1 remains sliding. Subsequently, according to the distance of the solder joints, the operator presets the buckling timing of the arc-shaped buckle plate 21. After the arc-shaped buckle plate 21 is buckled on the upper end of the arc-shaped frame 20, several limit wheels 32 will guide the bending of the nickel-chromium wire 1. After the nickel-chromium wire 1 undergoes bending deformation, since the nickel-chromium wire 1 is limited by the arc-shaped frame 20 and the arc-shaped buckle plate 21 at this time, when the multi-angle bending mechanism 4 drives the arc-shaped frame 20 to deflect, the nickel-chromium wire 1 will undergo corresponding deformation, thereby adapting to solder joints at different distances. When the nickel-chromium wire 1 is bent, two clamping cylinders 47 will clamp the nickel-chromium wire 1. According to the required shape of the nickel-chromium wire 1, the two clamping cylinders 47 are displaced through a three-axis moving mechanism 48 to adapt to the change in the bending angle of the nickel-chromium wire 1 by changing the positioning point of the nickel-chromium wire 1. Finally, the successfully bent nickel-chromium wire 1 will be unloaded by the corresponding robotic arm or grasping mechanism during the subsequent brazing process and used for subsequent welding.

[0020] It should be noted that a cutting mechanism should be provided at the upper end of the main frame 2 to cut off the nickel-chromium wire 1. Since the cutting mechanism is an existing technology, it will not be described in detail here.

[0021] To supplement the specific structure of the multi-angle bending mechanism 4, the following features are specifically set: The multi-angle bending mechanism 4 includes a main motor 5, a motor frame 6, a limit disk 7, a secondary frame 8, a secondary motor 9, a secondary gear 10, a positioning gear 11, an arc-shaped ring 12, an arc-shaped gear ring 15, a secondary motor 16, a secondary gear 17, and a secondary bracket 18. The main motor 5 is fixedly connected to the upper end of the positioning plate 3 through the motor frame 6 (as Figure 5As shown in the figure, the auxiliary frame 8 is rotatably connected to the motor frame 6 and one end thereof is fixedly connected to the output end of the main motor 5. The limit disk 7 is fixedly connected to the side of the motor frame 6 close to the auxiliary frame 8. The limit disk 7 is rotatably connected to the auxiliary frame 8. The auxiliary motor 9 is fixedly connected to the other end of the auxiliary frame 8. The auxiliary gear 10 is coaxially fixedly connected to the output end of the auxiliary motor 9. The secondary shaft 14 is rotatably connected to the inside of the auxiliary frame 8. The arc-shaped ring 12 is arranged beside the motor frame 6. The secondary shaft 14 is fixedly connected to the side of the arc-shaped ring 12 close to the center of the circle. The positioning gear 11 is coaxially fixedly connected to the secondary shaft 14 and meshes with the auxiliary gear 10. When the arc-shaped ring 12 drives the positioning gear 11 to rotate, the arc-shaped ring 12 rotates along the axis direction of the secondary shaft 14. The secondary support 18 is slidably connected to the arc-shaped ring 12. The secondary motor 16 is fixedly connected to the secondary support 18. The arc-shaped gear ring 15 is coaxially fixedly connected to the arc-shaped ring 12. The secondary gear 17 is coaxially fixedly connected to the output end of the secondary motor 16. The secondary gear 17 meshes with the arc-shaped gear ring 15. The arc-shaped frame 20 is fixedly connected to the upper end of the secondary support 18. During the operation of the device, when the main motor 5 is started, the main motor 5 fixed on the positioning plate 3 through the motor frame 6 drives the auxiliary frame 8 to rotate around the motor frame 6. Since the limit disk 7 is rotatably connected to the auxiliary frame 8, the stability of the rotation of the auxiliary frame 8 can be ensured. After the auxiliary motor 9 is started, the auxiliary gear 10 at its output end rotates, and the positioning gear 11 meshing with the auxiliary gear 10 drives the secondary shaft 14 to rotate, thereby causing the arc-shaped ring 12 to rotate. At the same time, the secondary motor 16 is started, and the secondary gear 17 meshes with the arc-shaped gear ring 15 to drive the secondary support 18 to slide on the arc-shaped ring 12. Since the arc-shaped frame 20 is fixedly connected to the upper end of the secondary support 18, the sliding of the secondary support 18 and the rotation of the arc-shaped ring 12 can drive the arc-shaped frame 20 to perform multi-angle movements to meet the different bending requirements of the nickel-chromium wire 1 and better adapt to the requirements of different-distance welding points. During the actual processing, the above operations do not need to be carried out simultaneously, and it is only necessary to judge when to start the main motor 5, the auxiliary motor 9 and the secondary motor 16 according to the requirements of the nickel-chromium wire 1.

[0022] In order to limit the movement of the secondary support 18, the following features are specifically provided: The multi-angle bending mechanism 4 further includes two limit sliders 19. Limit grooves 13 are formed on both sides of the arc-shaped ring 12 (as Figure 3 shown in the figure). The limit sliders 19 are fixedly connected to the secondary support 18 (as Figure 8 shown in the figure) and are slidably connected to the limit grooves 13. When the secondary support 18 slides on the arc-shaped ring 12, since the limit grooves 13 are formed on both sides of the arc-shaped ring 12, the limit sliders 19 are fixedly connected to the secondary support 18 and are slidably connected to the limit grooves 13, and the limit sliders 19 can smoothly slide in the limit grooves 13 to play a role in limiting the movement of the secondary support 18, preventing the secondary support 18 from shifting or detaching from the arc-shaped ring 12 during the sliding process, ensuring the stable operation of the multi-angle bending mechanism 4, and guaranteeing the accuracy and reliability of the bending process of the nickel-chromium wire 1.

[0023] In order to tow and guide the nickel-chromium wire 1 so that the nickel-chromium wire 1 can smoothly move towards the multi-angle bending mechanism 4, the following features are specifically provided: The main guiding mechanism 22 further includes two pushing cylinders 25, two top frames 26, two power motors 27 and a plurality of main pulleys 28. The two top frames 26 are respectively fixedly connected to the upper ends of the two pressing frames 24 (as Figure 6 and Figure 7 shown). The pushing cylinder 25 is fixedly arranged at the upper end of the carrier frame 23 and its output end is fixedly connected to the pressing frame 24. The power motor 27 is fixedly connected to the upper end of the top frame 26. A plurality of main pulleys 28 are arranged at equal intervals at the lower end of the top frame 26 and are respectively corresponding to a plurality of guiding rubber wheels 29 one by one. The main pulley 28 and the guiding rubber wheel 29 are coaxially fixedly connected. Adjacent two main pulleys 28 are connected by belt drive. The main pulley 28 close to the power motor 27 is coaxially fixedly connected to the output end of the power motor 27. When the main guiding mechanism 22 works, the pushing cylinder 25 starts and pushes the pressing frame 24 to slide on the carrier frame 23, so that the two pressing frames 24 approach the nickel-chromium wire 1. After the power motor 27 starts, it drives the main pulley 28 coaxially fixedly connected thereto to rotate. Since adjacent two main pulleys 28 are connected by belt drive, a plurality of main pulleys 28 will rotate synchronously, and then drive the guiding rubber wheels 29 corresponding to the main pulleys 28 one by one and coaxially fixedly connected thereto to rotate. The rotation of the guiding rubber wheel 29 can tow and guide the nickel-chromium wire 1 so that the nickel-chromium wire 1 can smoothly move towards the multi-angle bending mechanism 4.

[0024] In order to increase the friction between the guiding rubber wheel 29 and the nickel-chromium wire 1 and prevent the nickel-chromium wire 1 from not being limited, the following features are specifically provided: A plurality of anti-slip grooves 30 are formed on the guiding rubber wheel 29 by equiangular array along the circumferential direction (as Figure 7 shown). The anti-slip grooves 30 can increase the contact area and friction between the guiding rubber wheel 29 and the nickel-chromium wire 1, prevent the nickel-chromium wire 1 from slipping during the guiding process, ensure that the nickel-chromium wire 1 can be stably limited and guided, and improve the precision of the conveying and bending of the nickel-chromium wire 1.

[0025] In order to realize the flipping of the arc-shaped buckle plate 21 so as to facilitate the arc-shaped buckle plate 21 to fit with the arc-shaped frame 20, the following features are specifically provided: The auxiliary guiding mechanism 31 further includes an electric push rod 34, an extrusion rack 36, an extrusion gear 35 and a flipping gear 39. The electric push rod 34 is arranged beside the arc-shaped frame 20 and is fixedly connected to the secondary support 18 (as Figure 5As shown in the figure, the extrusion rack 36 is fixedly connected to the output end of the electric push rod 34. The extrusion gear 35 is rotatably connected to the side of the arc-shaped frame 20 and meshes with the extrusion rack 36. The flipping gear 39 is coaxially fixedly connected to the lower end of the arc-shaped buckle plate 21. The flipping gear 39 meshes with the extrusion gear 35. A pin 38 is fixedly connected to one side of the arc-shaped frame 20 close to the electric push rod 34. A limit perforation 37 is formed on the extrusion rack 36, and the limit perforation 37 is slidably connected to the pin 38. When the arc-shaped buckle plate 21 needs to be buckled on the arc-shaped frame 20, the electric push rod 34 is started, and its output end pushes the extrusion rack 36 to move. The extrusion rack 36 will drive the extrusion gear 35 to rotate, and then the rotation of the extrusion gear 35 drives the flipping gear 39 to rotate, so that the arc-shaped buckle plate 21 rotates around the axis, realizing the fitting of the arc-shaped buckle plate 21 and the arc-shaped frame 20. At the same time, the limit perforation 37 on the extrusion rack 36 is slidably connected to the pin 38 on the arc-shaped frame 20, which can limit the movement of the extrusion rack 36 and ensure the stability of the flipping process of the arc-shaped buckle plate 21.

[0026] In order to limit the movement of the arc-shaped buckle plate 21 and prevent the arc-shaped buckle plate 21 from failing to fit with the arc-shaped frame 20, the following features are specifically set: The secondary guiding mechanism 31 further includes two main magnets 44, two secondary magnets 45 and a plurality of tension belts 46. The two main magnets 44 are respectively fixedly connected to the upper end of the arc-shaped frame 20 (as Figure 8 shown), the two secondary magnets 45 are respectively fixedly connected to the upper end of the arc-shaped buckle plate 21. The secondary magnets 45 and the main magnets 44 are attracted to each other by magnetic force when the arc-shaped buckle plate 21 and the arc-shaped frame 20 approach each other. One end of the plurality of tension belts 46 is hinged to the side wall of the arc-shaped frame 20 (as Figure 5 shown), and the other end is hinged to the side wall of the arc-shaped buckle plate 21. When the arc-shaped buckle plate 21 and the arc-shaped frame 20 approach each other, the secondary magnets 45 and the main magnets 44 are attracted to each other by magnetic force, which can initially position and adsorb the position of the arc-shaped buckle plate 21, making the arc-shaped buckle plate 21 better fit with the arc-shaped frame 20. The tension belts 46 can play a buffering and limiting role during the movement of the arc-shaped buckle plate 21, preventing the arc-shaped buckle plate 21 from moving excessively or shaking, and ensuring the stability of the nickel-chromium wire 1 during the bending process.

[0027] In order to drive the rotation of a plurality of limit wheels 32 to facilitate the guiding and bending of the nickel-chromium wire 1, the following features are specifically set: The secondary guiding mechanism 31 further includes a driving motor 40, a driving gear 41, a plurality of main gears 42 and a plurality of reversing gears 43. The driving motor 40 is fixedly connected to the upper end of the arc-shaped buckle plate 21. The driving gear 41 is rotatably connected to the arc-shaped buckle plate 21 and is coaxially fixedly connected to the output end of the driving motor 40 (as Figure 8As shown in the figure, a number of main gears 42 are fixedly connected coaxially with a number of limit wheels 32 respectively. A reversing gear 43 is rotatably arranged on the side where two adjacent main gears 42 are close to each other, and the reversing gear 43 meshes with the main gear 42. When it is necessary to guide and bend the nickel-chromium wire 1, the driving motor 40 is started to drive the driving gear 41 to rotate. The driving gear 41 meshes with the main gear 42 through the reversing gear 43, so that the rotation of the driving gear 41 can drive a number of main gears 42 to rotate synchronously. And a number of main gears 42 will drive a number of limit wheels 32 to rotate accordingly. The rotating limit wheels 32 can guide and bend the nickel-chromium wire 1 to better adapt to the shape requirements of solder joints at different distances.

[0028] The working principle of this device is that during the entire process of guiding the nickel-chromium wire 1 along the line automatically, each mechanism works together to achieve precise bending and conveying of the nickel-chromium wire 1. First, the nickel-chromium wire 1 enters the main guiding mechanism 22. The pushing cylinder 25 in the main guiding mechanism 22 pushes two pressing frames 24 close to the nickel-chromium wire 1. The power motor 27 drives the main belt pulley 28 and the guiding rubber wheel 29 to rotate, so as to traction and guide the nickel-chromium wire 1. The anti-slip grooves 30 on the guiding rubber wheel 29 increase the friction force with the nickel-chromium wire 1 to ensure the stable movement of the nickel-chromium wire 1. At the same time, two clamping cylinders 47 intermittently clamp the nickel-chromium wire 1 under the adjustment of the three-axis moving mechanism 48 to prevent it from moving erratically during the movement.

[0029] When the nickel-chromium wire 1 moves to the upper end of the arc-shaped frame 20, a number of lifting wheels 33 lift the nickel-chromium wire 1 to ensure its smooth sliding. The operator presets the buckling timing of the arc-shaped buckle plate 21 according to the distance of the solder joint. The electric push rod 34 pushes the extrusion rack 36 to move. Through the transmission of the extrusion gear 35 and the flipping gear 39, the arc-shaped buckle plate 21 is flipped and buckled on the arc-shaped frame 20. At this time, the main magnet 44 and the secondary magnet 45 attract each other by magnetic force, and the tension belt 46 limits and buffers the movement of the arc-shaped buckle plate 21 to ensure that the arc-shaped buckle plate 21 fits tightly with the arc-shaped frame 20.

[0030] The driving motor 40 is started to drive the driving gear 41 to rotate. Through the reversing gear 43, a number of limit wheels 32 rotate synchronously to bend and guide the nickel-chromium wire 1. In the multi-angle bending mechanism 4, the main motor 5 drives the secondary frame 8 to rotate, and the secondary motor 9 and the secondary motor 16 respectively drive the arc-shaped ring 12 to rotate and the secondary support 18 to slide, so as to drive the arc-shaped frame 20 to perform multi-angle movements, causing the nickel-chromium wire 1 to undergo corresponding deformations to adapt to solder joints at different distances.

[0031] During the bending process of the nickel-chromium wire 1, two clamping cylinders 47 are displaced through a three-axis moving mechanism 48 according to the required shape of the nickel-chromium wire 1, changing the positioning points of the nickel-chromium wire 1 to adapt to the change of the bending angle. Finally, the cutting mechanism truncates the nickel-chromium wire 1, and the successfully bent nickel-chromium wire 1 is unloaded by the grasping mechanism and used for subsequent welding (the grasping mechanism and the cutting mechanism are prior arts and will not be described in detail here). During the whole process, this device realizes the automatic guiding and wire following of the nickel-chromium wire 1, improving the production efficiency and product quality.

[0032] The above embodiments only represent one or several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. Automatically guided nickel-chromium wire straightener, characterized in that: include: A positioning plate is arranged in the middle of the main frame, and a multi-angle bending mechanism for bending the nickel-chromium wire is arranged on the upper end of the positioning plate. The multi-angle bending mechanism includes an arc frame for positioning the end of the nickel-chromium wire, and a movable arc buckle plate is arranged on the upper end of the arc frame, and the arc buckle plate fits the shape of the arc frame, and a secondary guide mechanism is arranged on the arc frame, and the secondary guide mechanism includes a plurality of limiting wheels, and the plurality of limiting wheels are arranged to rotate at equal intervals along the side of the arc buckle plate close to the arc frame, and a plurality of lifting wheels are formed in an array at equal intervals on the side of the arc frame close to the arc buckle plate, and a main guide mechanism is arranged on the upper end of the main frame, and the main guide mechanism includes a supporting frame and two clamping frames, the supporting frame is fixedly connected to the upper end of the main frame, the two clamping frames are slidably arranged at the upper end of the supporting frame, and a plurality of guide rubber wheels are arranged to rotate in an array at equal intervals on the side where the two clamping frames are close to each other, and two clamping cylinders are arranged in sequence on the side of the main guide mechanism close to the secondary guide mechanism, and the position of the clamping cylinder is adjusted by a three-axis moving mechanism.

2. The automatic guided nickel-chromium wire straightener according to claim 1, characterized in that: The multi-angle bending mechanism includes a main motor, a motor frame, a limit plate, a sub-frame, a sub-motor, a sub-gear, a positioning gear, an arc ring, an arc gear ring, a sub-motor, a sub-gear and a sub-frame. The main motor is fixedly connected to the upper end of the positioning plate through the motor frame, the sub-frame is rotatably connected to the motor frame and one end is fixedly connected to the output end of the main motor, the limit plate is fixedly connected to a side of the motor frame close to the sub-frame, the limit plate is rotatably connected to the sub-frame, the sub-motor is fixedly connected to the other end of the sub-frame, the sub-gear is coaxially fixedly connected to the output end of the sub-motor, and the sub-shaft is connected to the sub-frame The arc ring is arranged on the side of the motor frame, the secondary shaft is fixedly connected to the side of the arc ring close to the center of the circle, the positioning gear is fixedly connected to the secondary shaft coaxially and meshes with the secondary gear, and the arc ring rotates along the axis direction of the secondary shaft when the secondary gear drives the positioning gear to rotate, the secondary bracket is slidingly connected to the arc ring, the secondary motor is fixedly connected to the secondary bracket, the arc gear ring is fixedly connected to the arc ring coaxially, the secondary gear is fixedly connected to the output end of the secondary motor coaxially, the secondary gear meshes with the arc gear ring, and the arc frame is fixedly connected to the upper end of the secondary bracket.

3. The automatic guided nickel-chromium wire straightener according to claim 2, characterized in that: The multi-angle bending mechanism also includes two limit sliders. Limit grooves are formed on both sides of the arc ring. The limit sliders are fixedly connected to the secondary bracket and are slidably connected to the limit grooves.

4. The automatic guided nickel-chromium wire straightener according to claim 1, characterized in that: The main guide mechanism also includes two pushing cylinders, two top frames, two power motors and a number of main pulleys. The two top frames are respectively fixedly connected to the upper ends of the two clamping frames. The pushing cylinder is fixedly arranged at the upper end of the supporting frame and the output end is fixedly connected to the clamping frame. The power motor is fixedly connected to the upper end of the top frame. A number of main pulleys are evenly spaced at the lower end of the top frame and correspond one by one to a number of guide rubber wheels respectively. The main pulley is coaxially fixedly connected to the guide rubber wheel. Two adjacent main pulleys are connected by belt drive. The main pulley close to the power motor is coaxially fixedly connected to the output end of the power motor.

5. The automatic guided nickel-chromium wire straightener according to claim 4, characterized in that: The guide rubber wheel is formed with a plurality of anti-skid grooves in an array at equal angles along the circumferential direction.

6. The automatic guided nickel-chromium wire straightener according to claim 2, characterized in that: The auxiliary guiding mechanism also includes an electric push rod, an extrusion rack, an extrusion gear and a flip gear. The electric push rod is arranged on the side of the arc frame and is fixedly connected to the secondary bracket. The extrusion rack is fixedly connected to the output end of the electric push rod. The extrusion gear is rotationally connected to the side of the arc frame and meshes with the extrusion rack. The flip gear is coaxially fixed to the lower end of the arc buckle plate. The flip gear meshes with the extrusion gear. A pin is fixedly connected to one side of the arc frame close to the electric push rod. A limiting perforation is formed on the extrusion rack, and the limiting perforation is slidably connected to the pin.

7. The automatic guided nickel-chromium wire straightener according to claim 1, characterized in that: The auxiliary guiding mechanism also includes two main magnets, two auxiliary magnets and a number of tension belts. The two main magnets are respectively fixedly connected to the upper end of the arc frame, and the two auxiliary magnets are respectively fixedly connected to the upper end of the arc buckle plate. The auxiliary magnets and the main magnets are attracted to each other through magnetic force when the arc buckle plate and the arc frame are close to each other. One end of the several tension belts is hinged to the side wall of the arc frame, and the other end is hinged to the side wall of the arc buckle plate.

8. The automatic guided nickel-chromium wire straightener according to claim 1, characterized in that: The auxiliary guide mechanism also includes a driving motor, a driving gear, a plurality of main gears and a plurality of reversing gears. The driving motor is fixedly connected to the upper end of the arc-shaped buckle plate. The driving gear is rotationally connected to the arc-shaped buckle plate and is coaxially fixedly connected to the output end of the driving motor. The plurality of main gears are respectively coaxially fixedly connected to the plurality of limiting wheels. A reversing gear is rotatably provided on the side where two adjacent main gears are close to each other, and the reversing gear is meshed with the main gears.

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