A welding head device for a high-frequency welding machine with a rotating electrode

Abstract

The utility model discloses a high -frequency welding machine welding head device of area rotating electrode, include: mounting panel, the upper surface fixed mounting of mounting panel has two sets of guide post, the outer surface sliding installation of two sets of guide post has T -shaped board, and the welding mechanism is rotatably installed through the ball bearing in T -shaped board, and the lower end portion of welding mechanism also rotates in the upper surface department of mounting panel through the ball bearing. The design of welding mechanism makes it contact with the workpiece to be welded through the rotating welding head, and makes the workpiece contact surface molecule violent movement to produce heat under the action of high -frequency energy, and the rotation of welding head further makes heat distribution even, finally realizes the fusion welding of workpiece, and promotes the welding adaptability.

Description

Technical Field

[0001] This utility model relates to the field of high-frequency welding machine technology, specifically a welding head device for a high-frequency welding machine with a rotating electrode. Background Technology

[0002] The high-frequency welding machine head is mainly used for welding and processing plastics. Its principle is to use high-frequency electric fields to make molecules polar and make them move at high speed according to the electric field distribution, thereby rapidly heating the material and greatly improving the welding efficiency.

[0003] For example, the authorized patent with announcement number CN207808518U discloses a high-frequency welding machine head, including an upper mold base and a lower mold base. The upper mold base is linearly driven by an actuating cylinder, and the lower mold base is provided with a placement groove in which a film is placed. The feature is that the actuating cylinder is fixed on the output shaft of a rotary cylinder, which drives and rotates the upper mold base. The upper mold base includes an annular heating wire and a soft suction cup disposed in the middle of the heating wire. In this utility model, the upper mold base can drive the film and rotate 90 degrees, and finally weld it to the plastic box through the heating wire. It is simple, practical, and quickly fixes the film.

[0004] However, the aforementioned high-frequency welding machine head relies solely on a rotary cylinder to achieve a fixed 90-degree rotation, which makes it impossible to adjust the rotation speed and angle or perform continuous rotation according to welding requirements. This makes it difficult to adapt to non-right-angle irregular welding paths (such as circular or polygonal joints), thus limiting its applicability. Utility Model Content

[0005] The purpose of this invention is to provide a welding head device for a high-frequency welding machine with a rotating electrode, in order to solve the problem mentioned in the background art that the existing high-frequency welding machine head can only achieve a fixed 90-degree rotation through a rotating cylinder, and the rotation speed and angle cannot be flexibly adjusted according to welding requirements, and cannot be continuously rotated, which makes it difficult to adapt to non-right-angle irregular welding paths, resulting in a limited range of applications.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A high-frequency welding head device with a rotating electrode includes: a mounting plate, on the upper surface of which two sets of guide columns are fixedly mounted, and a T-shaped plate is slidably mounted on the outer surface of the two sets of guide columns. A welding mechanism is rotatably mounted inside the T-shaped plate via ball bearings, and the lower end of the welding mechanism is also rotatably mounted on the upper surface of the mounting plate via ball bearings.

[0007] Preferably, a motor is fixedly mounted on the lower surface of the mounting plate, the output shaft of the motor extends through to the upper surface of the mounting plate and a first transmission disc is fixedly mounted at its end, a synchronous belt is fitted on the outer surface of the first transmission disc, and the other end of the synchronous belt is fitted on the outer surface of the welding mechanism.

[0008] Preferably, the welding mechanism includes a second transmission disk, which is rotatably mounted on the upper surface of the mounting plate via roller bearings and simultaneously fitted onto the outer surface by a synchronous belt. A hollow tube is fixedly installed inside the second transmission disk, and an H-shaped ring disk is vertically slidably mounted on the outer surface of the hollow tube. The H-shaped ring disk, which is vertically slidably mounted on the outer surface of the hollow tube, is also rotatably mounted inside a T-shaped plate via ball bearings. A welding head is fixedly mounted on the upper surface of the H-shaped ring disk.

[0009] Preferably, the H-shaped ring disc can drive the welding head to slide vertically upward or downward on the outer surface of the guide post via the T-shaped plate.

[0010] Preferably, an electric push rod is provided inside the hollow tube, and the electric push rod is fixedly installed on the upper surface of the mounting plate, and the piston rod of the electric push rod extends out from inside the hollow tube and rotates at the lower end of the H-shaped annular disk.

[0011] Preferably, a high-frequency generator is fixedly installed on the lower surface of the T-shaped plate. The energy output end of the high-frequency generator is connected to the contact plate through a wire, and the other end of the contact plate is electrically connected to the receiving coil on the outer surface of the electrode ring through a transmitting coil. The electrode ring is fixedly installed on the outer surface of the welding head, and the contact plate is fixedly installed on the upper surface of the T-shaped plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. Through the design of the motor, first transmission disc, synchronous belt, guide column, T-shaped plate, high-frequency generator, electrode ring, and welding mechanism, in use, the motor can be started, and its output shaft drives the first transmission disc to rotate. The first transmission disc transmits torque to the welding mechanism through the synchronous belt on its outer surface, causing the welding mechanism to rotate around its own axis. This, in turn, drives the welding head connected to the welding mechanism to rotate synchronously, laying the foundation for subsequent rotary friction-assisted welding. When it is necessary to adjust the distance between the welding head and the workpiece, the relevant drive structure in the welding mechanism can be activated to drive the T-shaped plate to slide up and down along the guide column. Since the welding mechanism is rotatably mounted in the T-shaped plate through ball bearings, the sliding of the T-shaped plate will synchronously drive the welding mechanism and the welding head to move vertically, thereby... Precise control of the contact pressure and distance between the welding head and the workpiece adapts to the welding needs of workpieces with different thicknesses or heights. Simultaneously, when the high-frequency generator on the lower surface of the T-shaped plate operates, the generated high-frequency electrical energy is transmitted to the electrode ring via wires. The electrode ring maintains conductive connection with the welding head, allowing high-frequency energy to be efficiently transferred to the rotating welding head. At this point, the rotating welding head contacts the workpiece to be welded. Under the action of high-frequency energy, the molecules on the workpiece contact surface undergo violent motion, generating heat. Simultaneously, the rotation of the welding head further evenly distributes the heat, ultimately achieving the melting and welding of the workpiece. Throughout the entire process, the motor-driven rotational motion, the vertical adjustment of the guide column and T-shaped plate, and the energy transfer achieved by the high-frequency generator and electrode ring work together to ensure the stability and precision of the welding process.

[0013] 2. Through the design of the second transmission disc, hollow tube, electric push rod, H-shaped ring disc and welding head, the synchronous belt transmits power to the second transmission disc, which in turn drives the fixedly connected hollow tube to rotate. Since the H-shaped ring disc is vertically slidably installed on the outer surface of the hollow tube, the rotation of the hollow tube will drive the H-shaped ring disc and the welding head on the upper surface to rotate synchronously through the cooperation of the two. This rotary transmission structure allows the welding head to make the workpiece contact surface more evenly heated through rotational friction, reducing the problems of local overheating or poor welding. When it is necessary to adjust the distance between the welding head and the workpiece, the electric push rod fixed on the mounting plate is activated. Its piston rod extends from the hollow tube and pushes the H-shaped ring disk. Because the H-shaped ring disk is rotatably installed in the T-shaped plate through ball bearings, and the T-shaped plate slides along the guide column, the H-shaped ring disk will drive the welding head to rise and fall vertically. The precise drive of the electric push rod can achieve fine control of welding pressure and distance, allowing it to adapt to workpieces of different thicknesses and improve welding adaptability. During the rotation of the welding head, the high-frequency generator can be activated simultaneously, allowing the energy it generates to be transmitted to the contact plate via wires. The contact plate is inductively coupled with the receiving coil on the outer surface of the electrode ring through the transmitting coil, thereby transferring the energy to the electrode ring fixed on the welding head, and then conducting it to the welding head. This non-contact energy transfer method avoids the friction loss of traditional contact conductivity. Combined with the rotation of the welding head, the high-frequency energy is efficiently converted into heat at the workpiece contact surface, ultimately achieving stable and reliable fusion welding. Throughout the process, the design of each component ensures the coordination of rotation, lifting, and energy transfer, and significantly improves welding quality and efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall side cross-section of this utility model; Figure 3 This is a schematic diagram of the welding mechanism of this utility model.

[0015] In the diagram: 1. Mounting plate; 101. Motor; 102. First transmission disc; 103. Synchronous belt; 104. Guide column; 105. T-shaped plate; 106. High-frequency generator; 107. Electrode ring; 108. Contact plate; 2. Welding mechanism; 201. Second transmission disc; 202. Hollow tube; 203. Electric push rod; 204. H-shaped ring disc; 205. Welding head. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-3 This embodiment provides the following technical solution: like Figures 1-2As shown, a high-frequency welding head device with a rotating electrode includes: a mounting plate 1; two sets of guide columns 104 are fixedly mounted on the upper surface of the mounting plate 1; a T-shaped plate 105 is slidably mounted on the outer surface of the two sets of guide columns 104; a welding mechanism 2 is rotatably mounted inside the T-shaped plate 105 via ball bearings; the lower end of the welding mechanism 2 is also rotatably mounted on the upper surface of the mounting plate 1 via ball bearings; a motor 101 is fixedly mounted on the lower surface of the mounting plate 1; the output shaft of the motor 101 extends through to the upper surface of the mounting plate 1 and a first transmission disc 102 is fixedly mounted at its end; a synchronous belt 103 is fitted onto the outer surface of the first transmission disc 102; and the other end of the synchronous belt 103 is fitted onto the outer surface of the welding mechanism 2.

[0018] Through the design of the motor 101, the first transmission disc 102, the synchronous belt 103, the guide post 104, the T-shaped plate 105, the high-frequency generator 106, the electrode ring 107, and the welding mechanism 2, in use, the motor 101 can be started, and its output shaft drives the first transmission disc 102 to rotate. The first transmission disc 102 transmits torque to the welding mechanism 2 through the synchronous belt 103 on its outer surface, causing the welding mechanism 2 to rotate around its own axis, thereby driving the welding head 205 connected to the welding mechanism 2 to rotate synchronously, laying the foundation for subsequent rotary friction-assisted welding. When it is necessary to adjust the distance between the welding head 205 and the workpiece, the relevant drive structure in the welding mechanism 2 can be activated to drive the T-shaped plate 105 to slide up and down along the guide post 104. Since the welding mechanism 2 is rotatably mounted in the T-shaped plate 105 through ball bearings, the sliding of the T-shaped plate 105 will synchronously drive the welding mechanism 2 and the welding head 205 to rotate. The vertical movement precisely controls the contact pressure and distance between the welding head 205 and the workpiece, adapting to the welding needs of workpieces with different thicknesses or heights. Simultaneously, when the high-frequency generator 106 on the lower surface of the T-shaped plate 105 operates, the generated high-frequency electrical energy is transmitted to the electrode ring 107 via wires. The electrode ring 107 maintains conductive connection with the welding head 205, allowing high-frequency energy to be efficiently transferred to the rotating welding head 205. At this point, the rotating welding head 205 contacts the workpiece to be welded. Under the action of high-frequency energy, the molecules on the workpiece contact surface undergo violent motion, generating heat. Simultaneously, the rotation of the welding head 205 further evenly distributes the heat, ultimately achieving the melting and welding of the workpiece. Throughout the process, the rotational motion driven by the motor 101, the vertical adjustment of the guide column 104 in conjunction with the T-shaped plate 105, and the energy transfer achieved by the high-frequency generator 106 and the electrode ring 107 work together to ensure the stability and precision of the welding process.

[0019] like Figure 3As shown, the welding mechanism 2 includes a second transmission disk 201. The second transmission disk 201 is rotatably mounted on the upper surface of the mounting plate 1 via roller bearings and is simultaneously fitted onto the outer surface by a synchronous belt 103. A hollow tube 202 is fixedly mounted inside the second transmission disk 201, and an H-shaped ring disk 204 is vertically slidably mounted on the outer surface of the hollow tube 202. The H-shaped ring disk 204, which is vertically slidably mounted on the outer surface of the hollow tube 202, is also rotatably mounted inside a T-shaped plate 105 via ball bearings. A welding head 205 is fixedly mounted on the upper surface of the H-shaped ring disk 204. The H-shaped ring disk 204 can drive the welding head 205 to slide vertically upward or downward on the outer surface of the guide post 104 via the T-shaped plate 105. An electric push rod 203 is provided inside the hollow tube 202, and the electric push rod 203 is fixedly mounted on the upper surface of the mounting plate 1. The piston rod of the electric push rod 203 extends from inside the hollow tube 202 and rotates at the lower end inside the H-shaped ring disk 204. A high-frequency generator 106 is fixedly installed on the lower surface of the T-shaped plate 105. The energy output end of the high-frequency generator 106 is connected to the contact plate 108 through a wire. The other end of the contact plate 108 is electrically connected to the receiving coil on the outer surface of the electrode ring 107 through a transmitting coil. The electrode ring 107 is fixedly installed on the outer surface of the welding head 205, and the contact plate 108 is fixedly installed on the upper surface of the T-shaped plate 105.

[0020] Through the design of the second transmission disc 201, hollow tube 202, electric push rod 203, H-shaped ring disc 204 and welding head 205, the synchronous belt 103 transmits power to the second transmission disc 201, which in turn drives the fixedly connected hollow tube 202 to rotate. Since the H-shaped ring disc 204 is vertically slidably installed on the outer surface of the hollow tube 202, the rotation of the hollow tube 202 will drive the H-shaped ring disc 204 and the welding head 205 on the upper surface to rotate synchronously through the cooperation of the two. This rotational transmission structure allows the welding head 205 to make the workpiece contact surface more evenly heated through rotational friction, reducing the problem of local overheating or poor welding. When it is necessary to adjust the distance between the welding head 205 and the workpiece, the electric push rod 203 fixed on the mounting plate 1 is activated. Its piston rod extends from the hollow tube 202 and pushes the H-shaped ring disk 204. Since the H-shaped ring disk 204 is rotatably mounted in the T-shaped plate 105 through ball bearings, and the T-shaped plate 105 slides along the guide post 104, the H-shaped ring disk 204 will drive the welding head 205 to rise and fall vertically. The precise drive of the electric push rod 203 can achieve fine control of welding pressure and distance, allowing it to adapt to workpieces of different thicknesses and improve welding adaptability. During the rotation of the welding head 205, the high-frequency generator 106 can be activated simultaneously, allowing the energy generated to be transmitted to the contact plate 108 via wires. The contact plate 108 is inductively coupled with the receiving coil on the outer surface of the electrode ring 107 through the transmitting coil, thereby transferring energy to the electrode ring 107 fixed on the welding head 205, and then conducting it to the welding head 205. This non-contact energy transfer method avoids the friction loss of traditional contact conductivity. Combined with the rotation of the welding head 205, the high-frequency energy is efficiently converted into heat at the workpiece contact surface, ultimately achieving stable and reliable fusion welding. Throughout the process, the design of each component ensures the coordination of rotation, lifting, and energy transfer, and significantly improves welding quality and efficiency.

[0021] Based on the above technical solution, the working steps of this solution are summarized as follows: In use, the motor 101 is started, and its output shaft drives the first transmission disc 102 to rotate. The first transmission disc 102, through the synchronous belt 103 on its outer surface, drives the second transmission disc 201 to rotate. The second transmission disc 201 then drives the fixedly connected hollow tube 202 to rotate. Since the H-shaped ring disc 204 is vertically slidably mounted on the outer surface of the hollow tube 202, the rotation of the hollow tube 202, through the cooperation of both, drives the H-shaped ring disc 204 and the welding head 205 on its upper surface to rotate synchronously. This rotational transmission structure allows the welding head 205 to achieve more uniform heating of the workpiece contact surface through rotational friction, reducing local overheating or poor welding. When it is necessary to adjust the distance between the welding head 205 and the workpiece, the electric push rod 203 fixed on the mounting plate 1 is activated. Its piston rod extends from inside the hollow tube 202 and pushes the H-shaped ring disc 204. The disc 204 is rotatably mounted inside the T-shaped plate 105 via ball bearings, and the T-shaped plate 105 slides along the guide post 104. Therefore, the H-shaped disc 204 drives the welding head 205 to rise and fall vertically. The precise drive of the electric push rod 203 enables fine control of welding pressure and distance, allowing it to adapt to workpieces of different thicknesses and improving welding adaptability. During the rotation of the welding head 205, the high-frequency generator 106 can be activated simultaneously, allowing the energy generated to be transmitted to the contact plate 108 via wires. The contact plate 108 is inductively coupled with the receiving coil on the outer surface of the electrode ring 107 through the transmitting coil, thereby transferring energy to the electrode ring 107 fixed on the welding head 205, and then conducting it to the welding head 205. This non-contact energy transfer method avoids the friction loss of traditional contact conductivity. Combined with the rotation of the welding head 205, the high-frequency energy is efficiently converted into heat at the workpiece contact surface, ultimately achieving stable and reliable fusion welding.

[0022] In summary: By having the rotating welding head 205 come into contact with the workpiece to be welded, and by subjecting it to high-frequency energy, the molecules on the contact surface of the workpiece undergo violent motion to generate heat. At the same time, the rotation of the welding head 205 further ensures that the heat is evenly distributed, ultimately achieving the melting and welding of the workpiece and improving the welding compatibility.

[0023] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding head device for a high-frequency welding machine with a rotating electrode, characterized in that, include: Mounting plate (1), on the upper surface of which two sets of guide columns (104) are fixedly mounted, and T-shaped plates (105) are slidably mounted on the outer surfaces of the two sets of guide columns (104). A welding mechanism (2) is rotatably mounted inside the T-shaped plate (105) via ball bearings. The lower end of the welding mechanism (2) is also rotatably mounted on the upper surface of the mounting plate (1) via ball bearings.

2. The welding head device for a high-frequency welding machine with a rotating electrode according to claim 1, characterized in that: A motor (101) is fixedly installed on the lower surface of the mounting plate (1). The output shaft of the motor (101) extends through to the upper surface of the mounting plate (1) and a first transmission disc (102) is fixedly installed at its end. A synchronous belt (103) is fitted on the outer surface of the first transmission disc (102), and the other end of the synchronous belt (103) is fitted on the outer surface of the welding mechanism (2).

3. The high-frequency welding head device with rotating electrode according to claim 1, characterized in that: The welding mechanism (2) includes a second transmission disc (201). The second transmission disc (201) is rotatably mounted on the upper surface of the mounting plate (1) by a roller bearing and is fitted on the outer surface by a synchronous belt (103). A hollow tube (202) is fixedly installed inside the second transmission disc (201). An H-shaped ring disc (204) is vertically slidably mounted on the outer surface of the hollow tube (202). The H-shaped ring disc (204) is rotatably mounted inside the T-shaped plate (105) by a ball bearing. A welding head (205) is fixedly mounted on the upper surface of the H-shaped ring disc (204).

4. The high-frequency welding head device with rotating electrode according to claim 3, characterized in that: The H-shaped ring disk (204) can drive the welding head (205) to slide vertically upward or downward on the outer surface of the guide post (104) via the T-shaped plate (105).

5. The high-frequency welding head device with rotating electrode according to claim 3, characterized in that: An electric push rod (203) is provided inside the hollow tube (202), and the electric push rod (203) is fixedly installed on the upper surface of the mounting plate (1), and the piston rod of the electric push rod (203) extends out from the hollow tube (202) and rotates in the lower end of the H-shaped ring disk (204).

6. A high-frequency welding head device with a rotating electrode according to any one of claims 3-5, characterized in that: A high-frequency generator (106) is fixedly installed on the lower surface of the T-shaped plate (105). The high-frequency generator (106) is connected to the contact plate (108) through a wire. The other end of the contact plate (108) is electrically connected to the receiving coil on the outer surface of the electrode ring (107) through a transmitting coil. The electrode ring (107) is fixedly installed on the outer surface of the welding head (205), and the contact plate (108) is fixedly installed on the upper surface of the T-shaped plate (105).

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