Welding device

Abstract

The utility model relates to the technical field of medical equipment, in particular to a welding device, which is used for welding a copper wire and a connecting terminal with welding flux, and comprises a fixing seat used for fixing the connecting terminal, a rotary table used for fixing the copper wire and a high-frequency welding assembly used for generating high-frequency current, the high-frequency welding assembly comprises a heating coil, and the heating coil is arranged above the fixing base and used for heating the welding flux and fusing the copper wire and the connecting terminal. By designing the welding device, rapid welding of the copper wire and the connecting terminal is achieved, the device is simple in structure, and the welding cost is effectively reduced; compared with manual placing and welding, the device can drive the copper wire to move to the welding position more accurately through the rotary table, the welding quality is effectively improved, the copper wire is heated through the high-frequency welding assembly with the heating coil so that the welding flux can be molten, the copper wire, the connecting terminal and the welding flux can be welded more evenly, and the welding quality is improved. And the welding stability is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to a welding device. Background Technology

[0002] Magnetic resonance imaging (MRI) machines are common medical imaging devices that use the principle of nuclear magnetic resonance to generate high-resolution images of the inside of the human body. Gradient coils and radio frequency coils are essential components of an MRI machine. Gradient coils are used to generate controllable magnetic field gradients in different directions to locate the source of signals inside the human body and generate images at different locations. Radio frequency coils are used to send radio frequency pulses to the human body, excite the hydrogen nuclei of the human body, and receive signals from the hydrogen nuclei to generate images.

[0003] In the above-mentioned coil generation process, it is necessary to weld terminals to the ends of copper wires and lay the copper wires with terminals on an insulating board. Currently, the welding equipment used for welding copper wires and terminals is large in size, complex in structure, and expensive. Therefore, designing a simple and low-cost welding device is of great importance to those skilled in the art. Utility Model Content

[0004] The technical problem to be solved by this utility model embodiment is to provide a simple and low-cost welding device to solve the problems of large size, complex structure and high cost of welding equipment used for welding copper wires and terminals in the prior art.

[0005] This utility model discloses a welding device for welding copper wire and connecting terminals with solder, the device comprising:

[0006] A mounting base is used to fix the connecting terminal;

[0007] A turntable is used to fix one end of the copper wire. The turntable can drive the copper wire to rotate so that the other end of the copper wire can move to the connecting terminal.

[0008] A high-frequency welding assembly for generating high-frequency current includes a heating coil disposed above the mounting base for heating and fusing the copper wire and the connecting terminal.

[0009] Optionally, it may also include a suspension member for suspending the copper wire to press the copper wire and the connecting terminal together.

[0010] Optionally, the turntable includes a driving component, a frustum, and multiple fixing components. The frustum is disposed on the driving component and can rotate under the drive of the driving component. The multiple fixing components are evenly arranged around the outer periphery of the frustum for fixing the copper wire.

[0011] Optionally, the driving component is a rotary motor.

[0012] Optionally, the mounting base is provided with a limiting groove for placing the connecting terminal.

[0013] Optionally, the high-frequency welding assembly further includes a high-frequency generator for generating the current required by the heating coil.

[0014] Optionally, the frequency of the current generated by the high-frequency generator is 300–450 kHz.

[0015] Optionally, it also includes a worktable, wherein the fixed base, the turntable and the high-frequency welding assembly are all fixedly mounted on the worktable.

[0016] Optionally, the connection terminal is provided with a groove for accommodating the solder and placing the copper wire.

[0017] Optionally, the copper wire is enameled flat copper wire.

[0018] Compared with the prior art, the beneficial effects of the welding device provided by this utility model embodiment are as follows: By designing a welding device for welding copper wire and connecting terminals with solder, including a fixing base for fixing the connecting terminals, a turntable for fixing the copper wire, and a high-frequency welding assembly for generating high-frequency current, the high-frequency welding assembly includes a heating coil, which is disposed above the fixing base to heat the solder and fuse the copper wire and the connecting terminal; rapid welding of copper wire and connecting terminal is achieved. The device has a simple structure and effectively reduces welding costs. Moreover, compared with manual placement and welding, moving the copper wire to the welding position by the turntable is more precise and effectively improves the welding quality. Heating the copper wire with the high-frequency welding assembly with the heating coil to melt the solder will make the welding between the copper wire, connecting terminal and solder more uniform and effectively improve the welding stability. Attached Figure Description

[0019] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the welding device provided in this embodiment of the utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the welding device provided in this embodiment of the utility model. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the structure of the fixing base provided in an embodiment of the present utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the connection terminal provided in an embodiment of this utility model.

[0024] The labels for the attached figures are as follows:

[0025] 10. Copper wire; 20. Connecting terminal; 100. Fixing base; 200. Turntable; 300. High-frequency welding assembly; 400. Workbench; 500. Suspension component; 21. Groove; 110. Limiting groove; 210. Frustum; 220. Driving component; 230. Fixing component; 310. Heating coil. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] like Figures 1 to 4 As shown, this utility model provides a specific embodiment of a welding device.

[0028] A welding apparatus for welding copper wire 10 and connecting terminal 20 with solder, referenced. Figure 1 The welding device includes a fixed base 100, a turntable 200 and a high-frequency welding assembly 300. The fixed base 100 is used to fix the connecting terminal 20, the turntable 200 is used to fix one end of the copper wire 10, and the high-frequency welding assembly 300 is used to generate high-frequency current and heat the copper wire 10 so that the copper wire 10 and the connecting terminal 20 fuse together.

[0029] The high-frequency welding assembly 300 includes a heating coil 310, which is disposed above the fixed base 100. A space is reserved between the heating coil 310 and the surface of the fixed base 100 to accommodate the connecting terminal 20 and the copper wire 10. When the connecting terminal 20 is placed on the fixed base 100, the turntable 200 can drive the copper wire 10 to rotate, so that the other end of the copper wire 10 moves to the solder on the connecting terminal 20. The heating coil 310 of the high-frequency welding assembly 300 heats the copper wire 10 to melt the solder, thereby realizing the welding of the copper wire 10 and the connecting terminal 20.

[0030] Specifically, the welding device is used to weld the copper wire 10 and the connecting terminal 20. The welded structure will be used in the radio frequency coil or gradient coil in the magnetic resonance imaging machine. The magnetic resonance imaging machine is a medical device that uses the principle of nuclear magnetic resonance to generate high-resolution images of the internal structure of the human body. It typically includes a main magnetic field, gradient coil, radio frequency coil, control system, operating system, and a movable bed. The gradient coil is used to generate a controllable magnetic field gradient to help locate the signal source inside the human body and generate images at different locations. The radio frequency coil is used to send radio frequency pulses to excite hydrogen nuclei in human tissue and receive signals emitted from the hydrogen nuclei to generate images. Both the gradient coil and the radio frequency coil are essential components in the magnetic resonance imaging machine.

[0031] A gradient coil or radio frequency coil generally includes an insulating substrate and a coil wound on the insulating substrate. The coil is generally formed by winding copper wire 10 on the insulating substrate. The ends of the copper wire 10 in the coil need to be provided with connection terminals 20 for connecting to external circuits or devices to realize the corresponding functions and control of the coil.

[0032] When the solder-coated connector 20 is placed on the mounting base 100 and the other end of the copper wire 10 moves onto the connector 20, the high-frequency welding assembly 300 generates a high-frequency current. The high-frequency current flows into the heating coil 310. When the heating coil 310 comes into contact with the copper wire 10, due to the skin effect and proximity effect, the contact point between the copper wire 10 and the heating coil 310 will heat up rapidly, thereby rapidly heating and melting the solder under the copper wire 10 to achieve welding between the copper wire 10 and the connector 20.

[0033] In this embodiment, a welding device for welding copper wire 10 and connecting terminal 20 with solder is designed, realizing rapid welding of copper wire 10 and connecting terminal 20. The device has a simple structure and effectively reduces welding costs. Compared with manual placement and welding, moving copper wire 10 to the welding position by turntable 200 is more precise and effectively improves welding quality. Heating copper wire 10 with high-frequency welding component 300 with heating coil 310 to melt solder will make the welding between copper wire 10, connecting terminal 20 and solder more uniform and effectively improve welding stability.

[0034] In one embodiment, reference Figure 1 and Figure 2 The welding device also includes a worktable 400, a fixed base 100, a turntable 200 and a high-frequency welding component 300, all of which can be installed and fixed through the worktable 400 to prevent the fixed base 100, the turntable 200 or the high-frequency welding component 300 from shifting during use, thereby ensuring welding quality.

[0035] In one embodiment, reference Figure 2 The welding device also includes a suspension member 500, which is used to suspend the copper wire 10 to press the copper wire 10 and the connecting terminal 20 together.

[0036] Specifically, the suspension component 500 can be a weight. When one end of the copper wire 10 is fixed on the turntable 200 and the other end of the copper wire 10 moves to the connecting terminal 20, the weight will exert downward pressure on the copper wire 10 by suspending the weight on the copper wire 10, making the contact between the copper wire 10 and the connecting terminal 20 tighter, thereby making the welding between the copper wire 10 and the connecting terminal 20 more stable.

[0037] In one embodiment, reference Figure 1 and Figure 2 The turntable 200 includes a drive unit 220, a frustum 210 and multiple fixing members 230. The frustum 210 is mounted on the drive unit 220 and can rotate under the drive of the drive unit 220. The multiple fixing members 230 are evenly arranged around the outer periphery of the frustum 210 for fixing the copper wire 10.

[0038] Specifically, the drive unit 220 can be a rotary motor, such as a DC motor, a stepper motor, an AC motor, etc., or a servo driver, a pneumatic cylinder or pneumatic motor, or a hydraulic driver, etc. The drive unit 220 is used to drive the truncated cone 210 to rotate. The truncated cone 210 is provided with multiple fixing parts 230 for fixing multiple copper wires 10. The rotation of the truncated cone 210 can move the end of the copper wire 10 away from the truncated cone 210 to the connecting terminal 20 for welding. After welding is completed, the truncated cone 210 continues to rotate to move the welded copper wire 10 and the connecting terminal 20 away from the fixed base 100, so as to facilitate the placement of a new connecting terminal 20. After the new connecting terminal 20 is placed on the fixed base 100, the truncated cone 210 continues to rotate to move the unwelded copper wire 10 to the new connecting terminal 20 for welding.

[0039] In one embodiment, reference Figure 3 The fixing base 100 is provided with a limiting groove 110 for placing the connecting terminal 20; the limiting groove 110 is a limiting recess 21, and the inner height of the limiting recess 21 is less than the height of the connecting terminal 20. On the one hand, the limiting groove 110 can ensure that the connecting terminal 20 is fixed in the welding position to achieve precise positioning; on the other hand, during the welding process, the limiting groove 110 can limit the range of motion of the connecting terminal 20 to prevent the connecting terminal 20 from being displaced, thereby improving the welding quality.

[0040] In one embodiment, reference Figure 1 and Figure 2The high-frequency welding assembly 300 also includes a high-frequency generator for generating the current required for the heating coil 310. This current, after passing through the heating coil 310, generates a high-frequency electromagnetic field for heating the copper wire 10 and the solder.

[0041] The high-frequency welding assembly 300 also includes a power supply unit for providing electrical energy to the high-frequency generator; a control unit for monitoring and adjusting parameters during the welding process, such as current, pressure, and time, to suit the required welding strength; a safety protection unit for monitoring the equipment's operating status, such as overcurrent protection, overvoltage protection, and overheat protection; and a cooling unit for better heat dissipation, which ensures the temperature of the high-frequency welding assembly 300 remains within a safe range and accelerates the cooling of the solder, thereby improving welding efficiency.

[0042] The high-frequency generator produces a current with a frequency of 300–450 kHz. By using high-frequency current, heat transfer loss can be reduced, resulting in higher energy transfer efficiency, which is beneficial for heating the copper wire 10 and the solder.

[0043] In one embodiment, reference Figure 4 The connecting terminal 20 is provided with a groove 21 for accommodating solder and placing copper wire 10. By placing solder in the groove 21, the solder can be effectively limited to prevent it from falling off. The groove 21 can also be used to limit the copper wire 10 to prevent displacement between the copper wire 10 and the connecting terminal 20, thereby improving the welding quality.

[0044] In one embodiment, the copper wire 10 is an enameled flat copper wire 10. The enameled flat copper wire 10 is a flat copper wire 10 with an insulating enameled coating on its surface. It is made of high-purity copper and has excellent conductivity. By adopting a flat shape, it can better adapt to the needs of narrow spaces, thereby saving the space occupied during installation. By setting the insulating enameled coating, it can provide good insulation performance, effectively preventing short circuits between the copper wire 10 and other materials during winding, thereby improving the stability and safety of the product. At the same time, the insulating enameled coating can also effectively protect the surface of the copper wire 10 from oxidation and corrosion, extending the service life of the copper wire 10.

[0045] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A welding apparatus for welding copper wire and connecting terminals with solder, characterized in that, include: A mounting base is used to fix the connecting terminal; A turntable is used to fix one end of the copper wire. The turntable can drive the copper wire to rotate so that the other end of the copper wire can move to the connecting terminal. A high-frequency welding assembly for generating high-frequency current includes a heating coil disposed above the mounting base for heating solder and fusing the copper wire and the connecting terminal.

2. The welding apparatus according to claim 1, characterized in that, It also includes a suspension element for suspending the copper wire to press the copper wire and the connecting terminal together.

3. The welding apparatus according to claim 1, characterized in that, The turntable includes a driving component, a frustum, and multiple fixing components. The frustum is mounted on the driving component and can rotate under the drive of the driving component. The multiple fixing components are evenly arranged around the outer periphery of the frustum to fix the copper wire.

4. The welding apparatus according to claim 3, characterized in that, The driving component is a rotary motor.

5. The welding apparatus according to claim 1, characterized in that, The mounting base is provided with a limiting groove for placing the connecting terminal.

6. The welding apparatus according to claim 1, characterized in that, The high-frequency welding assembly also includes a high-frequency generator for generating the current required by the heating coil.

7. The welding apparatus according to claim 6, characterized in that, The frequency of the current generated by the high-frequency generator is 300–450 kHz.

8. The welding apparatus according to claim 1, characterized in that, It also includes a workbench, and the fixed base, the turntable and the high-frequency welding assembly are all fixedly mounted on the workbench.

9. The welding apparatus according to claim 1, characterized in that, The connection terminal is provided with a groove for accommodating the solder and placing the copper wire.

10. The welding apparatus according to claim 1, characterized in that, The copper wire is an enameled flat copper wire.

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