Transformer magnetic core welding device

Abstract

The utility model discloses a transformer magnetic core welding device which comprises a positioning platform, a pressing piece arranged on the upper side of the positioning platform and a driving mechanism for driving the pressing piece to ascend and descend, and welding machines symmetrically arranged on the two sides of the positioning platform and used for longitudinally welding a magnetic core to form a welding seam. A shading part is arranged on the upper side of the pressing part, transversely extends to cover the positions above the welding guns on the two sides and can be located at the fixed height positions of the two welding guns all the time in the longitudinal welding process of the welding machine. A suction opening is formed in the middle of the shading part and is connected with a smoke exhaust device through a hose. According to the utility model, the operation convenience can be ensured, and light pollution and air pollution in the welding process can be eliminated to the greatest extent.

Description

Technical Field

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

[0002] Welding equipment for small transformers often uses an open structure, which facilitates manual loading and unloading operations. However, the welding process produces dazzling flashes and fumes, and prolonged welding work may negatively impact workers' health. Wearing sun-protective glasses for extended periods can also cause discomfort. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a transformer core welding device that can ensure convenient operation while minimizing light and air pollution during the welding process.

[0004] Technical Solution: To achieve the above objectives, this utility model provides a transformer core welding device, comprising a positioning platform, a pressure member and a driving mechanism for lifting the pressure member on the upper side, and welding machines symmetrically arranged on both sides for longitudinally welding the core to form a weld seam; a light-shielding member is provided on the upper side of the pressure member, extending laterally to cover the welding guns on both sides, and is always located at a fixed height of the two welding guns during the longitudinal welding process of the welding machine; a suction port is opened in the middle of the light-shielding member and connected to a fume extraction device through a flexible hose.

[0005] Furthermore, the light-shielding member is longitudinally movably connected to the pressure member via a guide slide member, and the upper part of the pressure member is provided with a driving device that can lift and raise the light-shielding member.

[0006] Furthermore, the welding machine includes a lifting mechanism that drives the welding torch to move vertically. The welding torch is connected to the lifting end of the lifting mechanism via a support frame. The upper plate of the support frame is located above the welding torch, and its upper plate can support the lower part of the light-shielding component during the longitudinal welding process of the welding machine.

[0007] Furthermore, the lower part of the light-shielding member is connected to the upper part of the pressure member by an elastic member.

[0008] Furthermore, a side shaping device is provided on the upper part of the support frame, and when the welding gun is in the lower limit position, the side shaping device is laterally aligned with the lateral splicing surface of the magnetic core.

[0009] Furthermore, the side shaping device includes a side push block and a drive cylinder for driving the side push block to move laterally. When the light-shielding member is lifted, the side push block can move laterally and extend, and strike the side of the magnetic core during the extension process. When the side push block moves laterally and resets, the light-shielding member can fall onto the upper surface of the support frame.

[0010] Furthermore, the positioning platform is symmetrically provided with feeding mechanisms on both sides, and both are located in the orthogonal direction of the connection line between the two welding machines; the feeding mechanism includes a guide groove, and a steel sheet pusher is slidably arranged in the guide groove. The two steel sheet pushers respectively push the two stacked sheet groups to slide along their respective guide grooves to the positioning platform to splice them to form the magnetic core, and assemble them relative to the coil. The two steel sheet pushers form a lateral clamping force on the magnetic core.

[0011] Furthermore, the lateral splicing surface of the magnetic core, the opposite side end face of the support frame, and the end faces of the two guide grooves surround each other to form a vertical channel; and when the support frame is in the lower limit position, the light shield can be placed in close contact with the ends of the two side support frames and the two guide grooves without gaps; the lower space of the light shield and the two vertical channels form a downward-opening suction chamber.

[0012] Beneficial effects: This utility model discloses a transformer core welding device. The light-shielding component moves with the pressing component during loading and unloading, preventing inconvenience to workers. During welding, it moves with the welding torch, maintaining a stable close-range light-shielding and fume extraction effect, ensuring that the light-shielding and fume extraction effects do not weaken due to changes in the weld point position. It achieves convenient operation during loading and unloading and reliable light-shielding and fume extraction during welding without the need for complex structures and algorithmic control. Attached Figure Description

[0013] Figure 1 This is a side view schematic diagram of the structure of a transformer core welding device according to the present invention;

[0014] Figure 2 This is a top view of a partial structure of one embodiment of the present invention. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] As attached Figure 1-2A transformer core welding device includes a positioning platform 1, with a pressure member 2 and a driving mechanism for lifting the pressure member 2 on its upper side. Welding machines 3 are symmetrically arranged on both sides for longitudinally welding the core to form a weld. A light-shielding member 4 is provided on the upper side of the pressure member 2, extending laterally to cover the welding guns 31 on both sides, and remaining at a fixed height from the two welding guns 31 throughout the longitudinal welding process of the welding machine 3. A suction port is provided in the middle of the light-shielding member 4, connected to a fume extraction device via a flexible hose. The positioning platform 1 is used to position and place the coil frame. The upper surface of the positioning platform 1 has insertion holes adapted to the pins for insertion and positioning. The upper pressure member presses the coil frame firmly onto the positioning platform, facilitating subsequent core assembly and welding. After the coil frame is installed, the light-shielding member is pressed down along with the pressure member. After welding is completed, the light-shielding member moves up with the pressure member, thus avoiding inconvenience for workers' loading and unloading operations. Simultaneously, it shields against light pollution and smoke generated during the welding process. Furthermore, the light-shielding component moves longitudinally along with the welding torch, maintaining a stable close-range light-shielding and fume extraction effect. This ensures that the light-shielding and fume extraction effects do not weaken due to changes in the weld point's position. In summary, without the need for complex structures and algorithmic control, it provides ease of operation during loading and unloading, and reliable light-shielding and fume extraction during welding.

[0017] The light-shielding component 4 is longitudinally and movably connected to the pressure component 2 via a guide slide, and the upper part of the pressure component 2 is provided with a driving device that can lift and raise the light-shielding component 4. After the pressure component presses the coil frame, the light-shielding component can still be raised and held at a height away from the positioning platform, thereby facilitating operations such as core assembly and shaping. Before welding begins, the lifting force on the light-shielding component 4 can be released, allowing it to naturally descend to the shielding height under its own weight, thereby achieving better light-shielding and smoke extraction effects.

[0018] The welding machine 3 includes a lifting mechanism that drives the welding torch 31 to move vertically. The welding torch 31 is connected to the lifting end of the lifting mechanism via a support frame 32. The upper plate of the support frame 32 is located above the welding torch 31, and its upper plate can support the lower part of the light-shielding member 4 during the longitudinal welding process of the welding machine 3. After the fixed lifting action on the light-shielding member 4 is removed, since the pressure member is in a fixed position after being pressed, the light-shielding member 4 is in a state where it can slide and rise naturally relative to the pressure member. During the longitudinal welding process of the welding torch, the support frame can always support the bottom of the light-shielding member. Therefore, the light-shielding member 4 changes from initially following the pressure member to following the support frame. Since the relative position of the welding torch and the support frame is determined, the light-shielding member can always be located at a fixed height above the welding torch during the welding process, so as to always maintain a relatively close distance to the welding torch to block light pollution and absorb welding fumes.

[0019] The lower part of the light-shielding member 4 is connected to the upper part of the pressure member 2 via an elastic element. This creates a vertically downward pulling force on the light-shielding member 4, allowing it to press against the upper surface of the support frame and ensuring the stability of the light-shielding member 4 as it moves along the support frame.

[0020] The support frame 32 is equipped with a side-shaping device on its upper part. When the welding torch 31 is in the lower limit position, the side-shaping device is laterally aligned with the lateral splicing surface of the magnetic core. This ensures that during loading and unloading, the welding torch is positioned below and away from the positioning platform surface, making the operation safer. Furthermore, after the coil frame is loaded and installed and the magnetic core is assembled, the lateral splicing surface of the magnetic core can be directly leveled using the side-shaping devices on both sides, making the welding process smoother and more efficient.

[0021] The side shaping device includes a side push block 5 and a drive cylinder for driving the side push block 5 to move laterally. When the light shield 4 is lifted, the side push block 5 can move laterally and extend, and impact the side of the magnetic core during the extension process. Through the synchronous lateral impact of the two side push blocks 5 on both sides, the synchronous flattening of the splicing surfaces on both sides is achieved.

[0022] When the side push block 5 moves laterally to reset, the light-shielding member 4 can fall onto the upper surface of the support frame 32. This enables automatic leveling before welding, and the leveling process does not affect the supporting function of the support frame 32 on the light-shielding member. Even after adding the side shaping device, the light-shielding member can still be kept close to the welding torch during the welding process.

[0023] The positioning platform 1 has symmetrically arranged feeding mechanisms on both sides, both located in the orthogonal direction of the line connecting the two welding machines 3. Each feeding mechanism includes a guide groove 6, within which steel sheet pushers 7 are slidably arranged. The two steel sheet pushers 7 respectively push two stacked sheets along their respective guide grooves 6 to the positioning platform 1 to be spliced ​​together to form the magnetic core, which is then assembled relative to the coil. The two steel sheet pushers 7 exert a lateral clamping force on the magnetic core. This allows for automatic feeding, assembly, and clamping of the magnetic core, followed by leveling on both sides under this lateral clamping state, ensuring the final welding quality of the magnetic core.

[0024] The guide trough 6 has a storage bin on the upper side of the end away from the positioning platform 1. A fixed number of steel sheets are dropped into the trough by automatic material feeding, and then pushed to the positioning platform by the steel sheet pusher 7 to assemble with the coil frame. This reduces the labor intensity of workers and improves production efficiency.

[0025] The lateral splicing surface of the magnetic core, the opposite side end face of the support frame 32, and the end faces of the two guide grooves 6 form a vertical channel; and when the support frame 32 is in the lower limit position, the light-shielding member 4 can be placed in close contact with the ends of the two support frames 32 and the two guide grooves 6 without gaps; the lower space of the light-shielding member 4 and the two vertical channels form a downward-opening suction chamber. Figure 2 As shown, the dotted line represents the area covered by the light-shielding component 4. The light-shielding component 4 is configured as a shell-like structure, which can intercept rising smoke during its descent. Due to the short length of the weld, the light-shielding component can quickly move down to form a suction chamber, thereby preventing the lateral diffusion of smoke and ensuring that the smoke generated during welding can be completely extracted, thus minimizing air pollution.

[0026] The above are merely preferred embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A transformer core welding device, characterized in that: The device includes a positioning platform (1), a pressure member (2) and a drive mechanism for lifting the pressure member (2) on the upper side, and welding machines (3) symmetrically arranged on both sides for longitudinal welding of magnetic cores to form welds; a light shield (4) is provided on the upper side of the pressure member (2), the light shield (4) extends laterally to cover the welding guns (31) on both sides, and can always be located at a fixed height of the two welding guns (31) during the longitudinal welding process of the welding machine (3); a suction port is opened in the middle of the light shield (4) and is connected to the smoke exhaust device through a hose.

2. The transformer core welding device according to claim 1, characterized in that: The light-shielding member (4) is longitudinally movable relative to the pressure member (2) through a guide slide member, and the upper part of the pressure member (2) is provided with a driving device that can lift the light-shielding member (4).

3. The transformer core welding device according to claim 2, characterized in that: The welding machine (3) includes a lifting mechanism that drives the welding torch (31) to move vertically. The welding torch (31) is connected to the lifting end of the lifting mechanism through a support frame (32). The upper plate of the support frame (32) is located on the upper side of the welding torch (31), and its upper plate can support the lower part of the light shield (4) during the longitudinal welding process of the welding machine (3).

4. The transformer core welding device according to claim 3, characterized in that: The lower part of the light-shielding member (4) is connected to the upper part of the pressure member (2) through an elastic member.

5. The transformer core welding device according to claim 3, characterized in that: The support frame (32) is provided with a side shaping device on the upper part. When the welding gun (31) is in the lower limit position, the side shaping device is laterally aligned with the side splicing surface of the magnetic core.

6. The transformer core welding device according to claim 5, characterized in that: The side shaping device includes a side push block (5) and a drive cylinder for driving the side push block (5) to move laterally. When the light shield (4) is lifted, the side push block (5) can move laterally and extend, and strike the side of the magnetic core during the extension process. When the side push block (5) moves laterally and resets, the light shield (4) can fall on the upper surface of the support frame (32).

7. The transformer core welding device according to claim 3, characterized in that: The positioning platform (1) is symmetrically provided with feeding mechanisms on both sides, and both are located in the orthogonal direction of the line connecting the two welding machines (3); the feeding mechanism includes a guide groove (6), and a steel sheet pusher (7) is slidably arranged in the guide groove (6). The two steel sheet pushers (7) respectively push the two stacked sheets to slide along their respective guide grooves (6) to the positioning platform (1) to splice them to form the magnetic core, and assemble them relative to the coil. The two steel sheet pushers (7) form a lateral clamping force on the magnetic core.

8. The transformer core welding device according to claim 7, characterized in that: The lateral splicing surface of the magnetic core, the opposite side end face of the support frame (32), and the end faces of the two guide grooves (6) surround each other to form a vertical channel; and when the support frame (32) is in the lower limit position, the light shield (4) can be placed in close contact with the ends of the two side support frames (32) and the two guide grooves (6) without gaps; the lower space of the light shield (4) and the two vertical channels form a downward-opening suction chamber.

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