Resistance welding equipment

Abstract

The utility model relates to the technical field of welding, in particular to resistance welding equipment which comprises a vertically-arranged first linear module and a horizontally-arranged second linear module, a welding platform for carrying an NTC thermistor is arranged on the second linear module, a connecting plate is vertically arranged on the first linear module, and a clamping plate is arranged on the connecting plate. The top end of the connecting plate is connected with a top plate, the bottom end of the connecting plate is connected with a bottom plate, the top plate and the bottom plate are horizontally arranged, a welding head is arranged between the top plate and the bottom plate in a sliding mode, the top end of the welding head is hung on the top plate, and a pressure sensor is arranged at the position, located above the welding head, of the bottom face of the top plate; and a welding needle is vertically arranged at the bottom end of the welding head. According to the NTC thermistor welding device, the welding pressure can be monitored in real time and automatically adjusted, so that the stability of the welding process and the quality of welding spots are ensured, and the welding reliability of NTC thermistors is greatly improved.

Description

Technical Field

[0001] The present application relates to the field of welding technology, and in particular to a resistance welding device. Background Art

[0002] NTC thermistors are temperature sensing components widely used in electronic devices. They are typically soldered to printed circuit boards (PCBs) to ensure stability and temperature measurement accuracy within the circuit. The quality of the soldering process is crucial to the performance and service life of NTC thermistors. The pressure applied during soldering, in particular, directly impacts the reliability of the solder joint. Therefore, achieving precise pressure control during the soldering process has become a key technical issue in improving the quality of NTC thermistor soldering.

[0003] Existing NTC thermistor welding methods typically utilize manual or semi-automated equipment. While these methods can accomplish welding, manual welding is more susceptible to operator skill, resulting in inconsistent weld quality. While semi-automated equipment improves welding consistency, it still lacks pressure control, easily leading to excessive or insufficient welding pressure, thus compromising weld quality.

[0004] In summary, existing welding technology cannot effectively monitor and adjust the pressure during the welding process, resulting in unstable welding quality, which may cause problems such as loose solder joints or welding damage to the NTC thermistor. Utility Model Content

[0005] In order to achieve real-time monitoring and automatic adjustment of welding pressure, thereby ensuring the stability of the welding process and the quality of the weld, and greatly improving the welding reliability of NTC thermistors, this application provides a resistance welding device. This application provides the following technical solutions:

[0006] A resistance welding device includes a vertically arranged first linear module and a horizontally arranged second linear module, wherein the second linear module is provided with a welding platform equipped with an NTC thermistor, and the first linear module is provided with a connecting plate vertically, the top end of the connecting plate is connected to a top plate, and the bottom end of the connecting plate is connected to a bottom plate, the top plate and the bottom plate are both arranged horizontally, and a welding head is slidingly arranged between the top plate and the bottom plate, the top end of the welding head is suspended on the top plate, and a pressure sensor is provided on the bottom surface of the top plate located above the welding head; a welding needle is vertically arranged at the bottom end of the welding head.

[0007] In a specific possible implementation scheme, a connecting rod is vertically arranged between the top plate and the bottom plate, the top end of the connecting rod is connected to the top plate, the bottom end of the connecting rod is connected to the bottom plate, and the welding head is sleeved on the connecting rod.

[0008] In a specific feasible implementation scheme, the top end of the welding head is suspended on the top plate by bolts, a clearance groove is provided on the top plate, a through hole is provided at the bottom of the clearance groove, the bolt is vertically arranged, the top end of the bolt is stuck in the clearance groove, and the bottom end of the bolt passes through the through hole and is fixedly connected to the top end of the welding head.

[0009] In a specific embodiment, two clamping plates are horizontally provided at the bottom end of the welding head, and the two clamping plates clamp the welding needle.

[0010] In a specific possible implementation scheme, a fume dust collector is provided above the welding needle, and the fume dust collector is provided on the outer wall of the welding head.

[0011] In a specific possible implementation manner, a micrometer is further provided on the second linear module, and the micrometer is connected to the side wall of the welding platform.

[0012] In a specific possible implementation scheme, the welding platform is connected to the first linear module through an angle steel, the micrometer passes through the angle steel and is connected to the welding platform, and a rectangular hole is opened on the angle steel.

[0013] In a specific embodiment, the welding needle is a tungsten rod welding needle.

[0014] In summary, the beneficial effects of this application include at least:

[0015] 1) By installing a pressure sensor on the bottom surface of the top plate, the pressure applied by the welding needle to the NTC thermistor can be monitored in real time during welding to ensure the appropriate pressure. This design effectively avoids welding defects caused by excessive or insufficient welding pressure, improving welding stability and quality.

[0016] 2) A vertically positioned first linear module and a horizontally positioned second linear module, combined with connecting rods, bolts, and other components, ensure the welding head can be precisely moved and positioned between different welding positions. In particular, the micrometer design on the second linear module further enhances the welding platform's fine-tuning capabilities, ensuring high precision and reliability during the welding process.

[0017] 3) A fume and dust collector installed on the outer wall of the welding head effectively removes welding fumes during the welding process, improving the working environment and enhancing operator safety. Furthermore, the welding needle uses a tungsten rod, which has high temperature tolerance and a long lifespan, reducing the need for frequent replacement during welding and improving work efficiency.

[0018] The precise positioning of the welding platform and welding head is achieved by combining a vertically arranged first linear module and a horizontally arranged second linear module. The welding head in this mechanism is connected between the top and bottom plates via a connecting plate. During the welding process, a pressure sensor located on the underside of the top plate monitors the welding pressure in real time, ensuring that the welding needle applies appropriate pressure to the NTC thermistor. This avoids welding quality issues caused by excessive or insufficient pressure, significantly improving welding stability and reliability.

[0019] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application and to implement it in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the resistance welding equipment in this embodiment. Figure 1 .

[0021] Figure 2 yes Figure 1 Enlarged view of part A.

[0022] Figure 3 This is a schematic diagram of the overall structure of the resistance welding equipment in this embodiment. Figure 2 .

[0023] Figure 4 yes Figure 3 Magnified view of part B.

[0024] Figure numerals: 1. fixing frame; 2. first linear module; 3. second linear module; 4. welding head; 41. connecting plate; 42. top plate; 43. bottom plate; 44. clamping plate; 45. connecting rod; 46. clearance groove; 47. bolt; 5. welding needle; 6. pressure sensor; 7. smoke dust collector; 8. micrometer; 81. angle steel; 82. rectangular hole; 9. welding platform. DETAILED DESCRIPTION

[0025] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It will be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some, rather than all, structures related to the present application are shown in the accompanying drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] As used herein, the terms "comprise," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0028] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0029] The embodiment of the present application discloses a resistance welding device.

[0030] Reference Figure 1 The resistance welding equipment includes a fixed frame 1, a first linear module 2 and a second linear module 3. The first linear module 2 is vertically arranged and fixedly installed on the fixed frame 1. The second linear module 3 is horizontally arranged on one side of the fixed frame 1. A welding platform 9 equipped with an NTC thermistor is installed on the second linear module 3. Figure 2The first linear module 2 is fixedly connected to a vertically arranged connecting plate 41. The top of the connecting plate 41 is fixedly connected to a top plate 42. The bottom of the connecting plate 41 is fixedly connected to a bottom plate 43. The top plate 42 and the bottom plate 43 are both arranged horizontally. A connecting rod 45 is vertically arranged between the top plate 42 and the bottom plate 43. The top of the connecting rod 45 is fixedly connected to the bottom surface of the top plate 42. The bottom end of the connecting rod 45 is fixedly connected to the top surface of the bottom plate 43. The welding head 4 is sleeved on the connecting rod 45. The top end of the welding head 4 is suspended on the top plate 42 by a bolt 47. Specifically, a clearance groove 46 is provided on the top surface of the top plate 42. A through hole is provided at the bottom of the clearance groove 46. The bolt 47 is vertically arranged. The top end of the bolt 47 is stuck in the clearance groove 46. The bottom end of the bolt 47 passes through the through hole and is threadedly connected to the top end of the welding head 4. The bottom end of the welding head 4 is fixedly connected to two horizontally arranged clamping plates 44. A welding needle 5 is clamped between the two clamping plates 44. The welding needle 5 is a tungsten rod. Tungsten has an extremely high melting point and excellent thermal stability, which allows it to maintain a stable shape and performance in high-temperature welding environments. This means that the tungsten rod welding needle 5 will not deform or damage due to the high temperature during the welding process, thus ensuring the stability of the weld quality. Furthermore, tungsten is a highly conductive material that can effectively conduct current, thus achieving a stable arc welding process. This helps improve welding accuracy and ensures a consistent and secure weld, which is particularly effective in applications requiring high-precision welding.

[0031] Reference Figure 1 and Figure 2 , the bottom surface of the top plate 42 is located above the welding head 4 and is provided with a pressure sensor 6. A gap is left between the pressure sensor 6 and the welding head 4. In practice, when the welding needle 5 applies pressure to the NTC thermistor, this force will be transmitted to the top of the welding head 4 through the welding head 4. Although there is a gap between the sensor and the welding head 4, when the pressure reaches a certain level, the welding head 4 will move up slightly or deform, so that part of the force is transmitted to the pressure sensor 6. According to the electrical signal output by the sensor, the welding system can automatically adjust the position of the first linear module 2 to move the welding head 4 up or down, thereby achieving precise control of the welding pressure. If the pressure sensor 6 detects that the pressure is too high, the system will move the welding head 4 up slightly to reduce the force applied to the welding point, and vice versa. Leaving a gap can prevent the welding head 4 from directly hitting the pressure sensor 6 when it is subjected to external force or mechanical vibration, thereby protecting the sensor from physical damage and extending its service life. Furthermore, by maintaining a gap, direct contact between the welding head 4 and the pressure sensor 6 is avoided, which helps the pressure sensor 6 more accurately sense and measure the actual pressure applied to the welding point during welding. This avoids measurement errors caused by uneven contact surfaces or other factors, thereby improving the accuracy of welding pressure control.

[0032] Reference Figure 1 and Figure 2A fume collector 7 is installed above the welding needle 5 and on the outer wall of the welding head 4. Positioned directly above the welding needle 5, the fume collector 7 captures and removes welding fumes during the welding process. This helps reduce the spread of harmful gases, maintains clean air in the work area, and creates a safer and healthier working environment. Furthermore, the fume collector 7 is integrated with the welding head 4, allowing it to be flexibly adjusted as the welding head 4 moves, maintaining fume removal capabilities within the welding area. This design facilitates maintenance and adjustment, enhancing overall operational convenience.

[0033] Reference Figure 3 and Figure 4 The second linear module 3 is also provided with a micrometer 8, which is connected to the welding platform 9 through an angle steel 81. The micrometer 8 passes through the angle steel 81 and is fixedly connected to the side wall of the welding platform 9. A rectangular hole 82 is provided on the angle steel 81. The micrometer 8 provides high-precision measurement capabilities and can fine-tune the position of the welding platform 9. This is especially important for welding operations that require precise positioning, ensuring the accuracy of the welding position and angle of the NTC thermistor, thereby improving the welding quality. The rectangular hole 82 on the angle steel 81 is designed to enable the angle steel 81 to adjust its position. This design not only makes the connection more secure, but also allows the position of the micrometer 8 to be adjusted when necessary, providing greater flexibility. The connection between the micrometer 8 and the welding platform 9 is achieved through the design of the angle steel 81 and the rectangular hole 82, so that the welding platform 9 can be precisely fine-tuned in a direction perpendicular to the second linear module 3. This is very helpful for multi-point welding or operations that require subtle adjustments to the welding height.

[0034] In summary, the precise movement and positioning of the welding platform 9 and the welding head 4 are ensured by the cooperation of the vertically arranged first linear module 2 and the horizontally arranged second linear module 3. The introduced pressure sensor 6 can monitor the pressure applied during the welding process in real time, and control the welding pressure by automatically adjusting the position of the welding head 4 to avoid welding defects caused by excessive pressure. In addition, the tungsten rod welding needle 5 ensures the welding stability under high temperature, and the smoke dust collector 7 effectively removes the smoke generated during the welding process to ensure the safety and cleanliness of the working environment. Through the design of the micrometer 8 and the angle steel 81, high-precision fine-tuning of the position of the welding platform 9 is achieved, ensuring the accuracy and flexibility of the welding operation. This solution solves the problems of difficult control of welding pressure, unstable welding quality, and pollution of the welding environment in the prior art.

[0035] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A resistance welding device, characterized in that: It includes a vertically arranged first linear module and a horizontally arranged second linear module, the second linear module is provided with a welding platform equipped with an NTC thermistor, the first linear module is vertically provided with a connecting plate, the top end of the connecting plate is connected to a top plate, the bottom end of the connecting plate is connected to a bottom plate, the top plate and the bottom plate are both horizontally arranged, a welding head is slidingly arranged between the top plate and the bottom plate, the top end of the welding head is suspended on the top plate, the bottom surface of the top plate is located above the welding head and is provided with a pressure sensor; a welding needle is vertically provided at the bottom end of the welding head.

2. The resistance welding equipment according to claim 1, characterized in that A connecting rod is vertically arranged between the top plate and the bottom plate, the top end of the connecting rod is connected to the top plate, the bottom end of the connecting rod is connected to the bottom plate, and the welding head is sleeved on the connecting rod.

3. The resistance welding equipment according to claim 1, characterized in that The top end of the welding head is suspended on the top plate by a bolt. A clearance groove is provided on the top plate. A through hole is provided at the bottom of the clearance groove. The bolt is vertically arranged. The top end of the bolt is stuck in the clearance groove. The bottom end of the bolt passes through the through hole and is fixedly connected to the top end of the welding head.

4. The resistance welding equipment according to claim 1, wherein Two clamping plates are horizontally arranged at the bottom end of the welding head, and the two clamping plates clamp the welding needle.

5. The resistance welding equipment according to claim 1, wherein A fume dust collector is provided above the welding needle and is arranged on the outer wall of the welding head.

6. The resistance welding equipment according to claim 1, characterized in that The second linear module is further provided with a micrometer, and the micrometer is connected to the side wall of the welding platform.

7. The resistance welding equipment according to claim 6, characterized in that The welding platform is connected to the first linear module through an angle steel, the micrometer passes through the angle steel and is connected to the welding platform, and a rectangular hole is opened on the angle steel.

8. The resistance welding equipment according to claim 1, wherein The welding needle is a tungsten rod welding needle.

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