A double-station high-frequency welding apparatus

Abstract

The utility model discloses a high frequency welding equipment of double processing platform, including frame and high frequency source, frame sets up support platform, and the middle part of support platform is provided with the welding station, and the both ends of support platform correspondingly movably install the processing platform, and two processing platforms all are provided with the lower baffle, and the rear side of frame is provided with the mounting support, and is provided with the lifting drive device on the mounting support, and the lifting drive device is connected with the upper baffle through the lifting seat, and the upper baffle is elastically connected through multiple elastic connecting components between the lifting seat, and high frequency source and upper baffle, two lower baffles electric connection. Through adopting above -mentioned structure, make two processing platforms can alternately convey workpiece to the welding station and carry out the welding, greatly shorten the time of high frequency welding equipment waiting workpiece loading on the processing platform, greatly improve the welding efficiency, and make the upper baffle and lower baffle can better cooperation clamping welding workpiece, improve the welding quality of high frequency welding equipment.

Description

Technical Field

[0001] This utility model relates to the field of high-frequency welding technology, and in particular to a high-frequency welding device with dual processing tables. Background Technology

[0002] As is well known, high-frequency welding equipment uses high-frequency equipment with high-voltage rectification and self-excited high-frequency electron tube oscillation to instantly generate electromagnetic wave current electric field. The internal molecules of the plastic materials such as PVC, TPU, EVA, and PET being processed generate polarized friction and heat within the electromagnetic wave electric field. With the addition of a certain pressure, the plastic products that need to be heat-sealed and fused achieve the purpose of welding and forming.

[0003] Existing high-frequency welding equipment generally adopts the following structure: a frame, a welding station at the top of the frame, a processing table at the welding station, a lower guide plate mounted on the processing table, an upward-extending mounting frame at the rear of the frame, a crossbeam extending above the welding station at the top of the mounting frame, a lifting cylinder mounted on the crossbeam, and an upper guide plate connected to the lifting cylinder. The frame also houses a high-frequency source, which is electrically connected to the upper and lower guide plates via wires. When welding two workpieces, the worker first stacks the two workpieces on the processing table. Then, the lifting cylinder drives the upper guide plate downwards towards the welding station, causing the upper and lower guide plates to clamp the two workpieces. The high-frequency source starts operating, causing the upper and lower guide plates to weld the two workpieces. After the two workpieces are welded together, the lifting cylinder drives the upper guide plate upwards away from the welding station, at which point the worker can remove the workpieces.

[0004] Although the high-frequency welding equipment mentioned above can meet the needs of two welding operations, it requires workers to neatly stack the two workpieces to be welded on the processing table before welding can begin. This long waiting time results in low welding efficiency.

[0005] In addition, some workpieces that need to be welded are relatively large, which leads to the need for larger upper and lower guide plates in the high-frequency welding equipment. Since the piston rod of the lifting cylinder of the high-frequency welding equipment is generally connected to the center of the upper guide plate, when the lifting cylinder drives the upper guide plate to move downward through the piston rod and cooperates with the lower guide plate to clamp the workpiece, the pressure applied by the piston rod to the center of the upper guide plate cannot be effectively transmitted to the outer periphery of the upper guide plate, resulting in weak welding of the workpiece at the outer periphery of the upper guide plate. Utility Model Content

[0006] This invention aims to at least partially solve one of the problems in the prior art. To this end, this invention proposes a high-frequency welding device with dual processing tables, which not only improves the welding effect but also helps to improve the welding quality.

[0007] A high-frequency welding device with dual processing tables according to certain embodiments of the present invention includes a frame, an upper pressure plate mechanism, two processing tables, two sets of horizontal drive devices, and a high-frequency source. A support platform is provided on the upper part of the frame, and a welding station is provided in the middle of the support platform. A mounting bracket is provided in the middle of the rear side of the frame, and a crossbeam extending above the welding station is provided on the upper part of the mounting bracket. The upper pressure plate mechanism includes a lifting seat, an upper guide plate, and a lifting drive device. The lifting drive device is fixedly installed on the crossbeam, and the lifting seat is drively connected to the lifting drive device. The upper guide plate is movably installed below the lifting seat. Multiple sets of elastic connection components are provided between the upper guide plate and the lifting seat, and the multiple sets of elastic connection components are arranged around the upper guide plate. The plates are arranged at intervals around their perimeter; two processing tables are movably installed at both ends of the support platform, one-to-one, and each processing table has a lower guide plate on its upper part; two sets of horizontal drive devices are fixedly installed on the frame, and the two sets of horizontal drive devices are connected to the two processing tables one-to-one, and each set of horizontal drive devices can drive the corresponding processing table to move to or away from the welding station; the high-frequency source is set on the frame, and the high-frequency source is electrically connected to the upper guide plate and the two lower guide plates; when the horizontal drive device drives the corresponding processing table to move to the welding station, the lifting drive device can drive the lifting seat to move the upper guide plate downwards toward or upwards away from the welding station.

[0008] The high-frequency welding equipment with dual processing tables according to this utility model has the following beneficial effects: By movably installing two processing tables at both ends of the support platform of the frame, and setting a lower guide plate on the upper part of each processing table, the worker can alternately place the workpiece to be welded on the two processing tables. The two processing tables alternately move the workpiece to the welding station for welding, which greatly shortens the waiting time for the worker to load the workpiece onto the processing table and greatly improves the welding efficiency of the high-frequency welding equipment of this application. Moreover, the upper guide plate of this application is installed below the lifting seat through multiple sets of elastic connecting components. Therefore, when the lifting drive device drives the lifting seat to move the upper guide plate downward and cooperate with the lower guide plate to weld the workpiece, the lifting drive device applies force to the lifting seat. The lifting seat then transmits the extrusion force to the periphery of the upper guide plate through multiple sets of elastic connecting components. Therefore, the extrusion force applied by the lifting drive device can be transmitted to the upper guide plate more evenly. The upper guide plate and the lower guide plate can better cooperate to clamp the workpiece, making the welding of the workpiece more uniform and firm, and further improving the welding quality of the high-frequency welding equipment of this application.

[0009] In some embodiments of this utility model, each set of elastic connecting components includes a connecting pin and a compression spring. The lifting seat has a pin hole adapted to the connecting pin. One end of the connecting pin is connected to the upper part of the upper guide plate, and the other end of the connecting pin away from the upper guide plate is movably inserted into the pin hole. The compression spring is sleeved on the outer periphery of the connecting pin. One end of the compression spring abuts against the lower surface of the lifting seat, and the other end of the compression spring abuts against the upper surface of the upper guide plate. The lifting seat and the upper guide plate can move relative to each other in the vertical direction and cooperate to compress the compression spring.

[0010] In some embodiments of this utility model, a first nut is threaded to one end of the connecting pin away from the upper guide plate, and the first nut abuts against the upper surface of the lifting seat away from the upper guide plate.

[0011] In some embodiments of this utility model, the upper guide plate is in the shape of a cuboid, and the number of elastic connecting components between the upper guide plate and the lifting seat is four sets, with the four sets of elastic connecting components arranged at intervals around the periphery of the upper guide plate.

[0012] In some embodiments of this utility model, the mounting bracket is provided with a first guide rail arranged in the vertical direction, a first slider is movably mounted on the first guide rail, the lifting seat is connected to the first slider, and when the lifting drive device drives the lifting seat to move closer to or away from the welding station, the first slider and the first guide rail can cooperate to guide the lifting seat to descend or rise in the vertical direction.

[0013] In some embodiments of this utility model, the lifting drive device is a first cylinder fixedly installed on the crossbeam, and the piston rod of the first cylinder is connected to the lifting seat.

[0014] In some embodiments of this utility model, two sets of horizontal drive devices are arranged correspondingly at both ends of the frame. Each set of horizontal drive devices includes a drive motor, a lead screw, and a second nut. The drive motor is fixedly installed on the frame. The lead screw is driven by the rotating shaft of the drive motor. The lead screw is arranged along the length direction of the support platform. The second nut is threaded to the outer periphery of the lead screw and is connected to the corresponding processing table. When the drive motor drives the lead screw to rotate forward or backward, the second nut drives the processing table to move along the axial direction of the lead screw, closer to or away from the welding station.

[0015] In some embodiments of this utility model, a second guide rail is provided on the upper surface of the support platform. The second guide rail is arranged along the length direction of the support platform. Two second sliders are movably mounted on the second guide rail, and the two second sliders are connected to the two processing tables in a one-to-one correspondence.

[0016] In some embodiments of this utility model, each of the processing tables is provided with a clamping mechanism for clamping the workpiece on its upper part, and the clamping mechanism is located on one side of the lower guide plate.

[0017] In some embodiments of this utility model, the clamping mechanism includes a second cylinder and a crossbar. The second cylinder is fixedly installed on the upper part of the processing table. One end of the crossbar is connected to the piston rod of the second cylinder. The second cylinder can drive the crossbar to move downward toward the processing table, or the second cylinder can drive the crossbar to move upward away from the processing table. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a high-frequency welding device with dual processing tables according to certain embodiments of this utility model; Figure 2 yes Figure 1 The diagram shows a structural schematic of a high-frequency welding device with two processing tables when one processing table moves to the welding station. Figure 3 yes Figure 1 The diagram shows a high-frequency welding equipment with two processing tables. When one processing table moves to the welding station and the lifting drive device drives the upper guide plate to move downwards and approach the welding station, the diagram shows the structure of the equipment. Figure 4 yes Figure 1 The diagram shows a structural schematic of a high-frequency welding device with dual processing tables from another angle; Figure 5 yes Figure 1 The diagram shows an assembly structure of the upper guide plate and the lifting seat of a high-frequency welding device with dual processing tables. Detailed Implementation

[0019] The embodiments of this implementation are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this implementation, and should not be construed as limiting this implementation.

[0020] The accompanying drawings used in this embodiment are schematic and principle-based, and are only for the purpose of facilitating and simplifying the description of this embodiment. Therefore, they should not be construed as limiting this embodiment.

[0021] In the description of this embodiment, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this embodiment, unless otherwise explicitly limited, terms such as setting, installing, and connecting should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this embodiment in conjunction with the specific content of the technical solution.

[0023] Figures 1 to 5 This is a schematic diagram of one embodiment of a high-frequency welding device with dual processing tables according to this utility model. (For ease of explanation, it will sometimes be referred to as "high-frequency welding device" below.)

[0024] Reference Figures 1 to 5This utility model discloses a high-frequency welding device with dual processing tables according to certain embodiments, comprising a frame 100, an upper pressure plate mechanism 200, two processing tables 300, two sets of horizontal drive devices, and a high-frequency source 400. In this embodiment, a support platform 110 is provided on the upper part of the frame 100. The support platform 110 is in the shape of a long rectangular parallelepiped. Four support legs 111 are provided on the lower part of the frame 100, and the upper parts of the four support legs 111 are connected to the four corners of the lower surface of the support platform 110. A welding station 120 is provided in the middle of the support platform 110, and a mounting bracket 130 is provided in the middle of the rear side of the frame 100. A crossbeam 131 extending above the welding station 120 is provided on the upper part of the mounting bracket 130. The upper pressure plate mechanism 200 includes a lifting seat 210, an upper guide plate 220, and a lifting drive device 230. The lifting drive device 230 is fixedly installed on the crossbeam 131. The lifting seat 210 is connected to the lifting drive device 230 in a transmission manner. The upper guide plate 220 is movably installed below the lifting seat 210. Multiple sets of elastic connection components 240 are provided between the upper guide plate 220 and the lifting seat 210. The multiple sets of elastic connection components 240 are arranged at intervals around the periphery of the upper guide plate 220. Specifically, the upper guide plate 220 is elastically connected to the lower surface of the lifting seat 210 through the multiple sets of elastic connection components 240. Two processing tables 300 are movably installed at both ends of the support platform 110, one-to-one. Each processing table 300 has a lower guide plate 310 on its upper part. Two sets of horizontal drive devices are fixedly installed on the frame 100, and the two sets of horizontal drive devices are connected to the two processing tables 300 in a one-to-one transmission manner. Specifically, one set of horizontal drive devices is connected to one processing table 300, and the other set of horizontal drive devices is connected to the other processing table 300. Each set of horizontal drive devices can drive the corresponding processing table 300 to move to or away from the welding station 120. A high-frequency source 400 is set on the frame 100 and is electrically connected to the upper guide plate 220 and the two lower guide plates 310. When the horizontal drive device drives the corresponding processing table 300 to move to the welding station 120, the lifting drive device 230 can drive the lifting seat 210 to move the upper guide plate 220 downward toward or upward away from the welding station 120.

[0025] The specific working process of the high-frequency welding equipment in this embodiment is as follows: The worker first loads a set of workpieces to be welded onto one of the processing tables 300. A corresponding horizontal drive device drives the processing table 300 to move the workpieces to the welding station 120. A lifting drive device 230 drives the lifting seat 210 to move the upper guide plate 220 downwards towards the welding station 120, causing the upper guide plate 220 to press the workpieces tightly against the lower guide plate 310. A high-frequency source 400 starts working, causing the upper guide plate 220 and lower guide plate 310 to cooperate in welding the workpieces. During this process, the worker can load another set of workpieces to be welded onto another processing table 300. After the workpieces at the welding station 120 are welded, the lifting drive device 230 drives the lifting seat 210 to move the upper guide plate 220 upwards away from the welding station 120. The horizontal drive device then drives the workpieces at the welding station 120... The processing table 300 moves the welded workpiece away from the welding station 120. Another set of horizontal drive devices drives the processing table 300 to move the workpiece to be welded to the welding station 120. Then, the lifting drive device 230 drives the lifting seat 210 to move the upper guide plate 220 downward and closer to the welding station 120, so that the upper guide plate 220 and the lower guide plate 310 cooperate to weld the workpiece. During this process, the worker can remove the welded workpiece from the processing table 300 away from the welding station 120 and put the workpiece to be welded back on the processing table 300 to facilitate the next round of welding work. This cycle greatly shortens the time that the high-frequency welding equipment of this application waits for the worker to load the workpiece onto the processing table 300, and greatly improves the welding efficiency of the high-frequency welding equipment of this application. In this application, the upper guide plate 220 is installed below the lifting seat 210 via multiple sets of elastic connecting components 240. Therefore, when the lifting drive device 230 drives the lifting seat 210 to move the upper guide plate 220 downward and cooperate with the lower guide plate 310 to weld the workpiece, the lifting drive device 230 applies force to the lifting seat 210. The lifting seat 210 then transmits the extrusion force to the periphery of the upper guide plate 220 through multiple sets of elastic connecting components 240. Therefore, the extrusion force applied by the lifting drive device 230 can be transmitted to the upper guide plate 220 more evenly. The upper guide plate 220 and the lower guide plate 310 can better cooperate to clamp the workpiece, making the welding of the workpiece more uniform and firm, and further improving the welding quality of the high-frequency welding equipment of this application.

[0026] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5In some embodiments of this utility model, each set of elastic connection components 240 includes a connecting pin 241 and a compression spring 242. The lifting seat 210 has a pin hole adapted to the connecting pin 241. One end of the connecting pin 241 is connected to the upper part of the upper guide plate 220, and the other end of the connecting pin 241 away from the upper guide plate 220 is movably inserted into the pin hole. The compression spring 242 is sleeved on the outer periphery of the connecting pin 241. One end of the compression spring 242 abuts against the lower surface of the lifting seat 210, and the other end of the compression spring 242 abuts against the upper surface of the upper guide plate 220. The lifting seat 210 and the upper guide plate 220 can move relative to each other in the vertical direction and cooperate to compress the compression spring 242. By adopting the above structure, the upper guide plate 220 and the lifting seat 210 are elastically connected. When the lifting drive device 230 drives the lifting seat 210 to move the upper guide plate 220 downward to press the workpiece, the positioning fit between the connecting pin 241 and the pin hole can prevent the upper guide plate 220 from shifting relative to the lifting seat 210 in the horizontal direction. This allows the upper guide plate 220 to accurately press the workpiece against the lower guide plate 310 of the processing table 300, ensuring the welding quality of the workpiece.

[0027] In some embodiments of this utility model, a first nut 243 is threadedly connected to the end of the connecting pin 241 away from the upper guide plate 220, and the first nut 243 abuts against the upper surface of the lifting seat 210 away from the upper guide plate 220. By adopting the above structure, it is not only convenient to connect and install the upper guide plate 220 and the lifting seat 210, but also the user can adjust the distance between the upper guide plate 220 and the lifting seat 210 and the clamping compression spring 242 by screwing the first nut 243 into the position of the connecting pin 241, thereby adjusting the elastic force of the compression spring 242.

[0028] In some embodiments of this utility model, the upper guide plate 220 is cuboid in shape, and four sets of elastic connecting components 240 are provided between the upper guide plate 220 and the lifting seat 210. The four sets of elastic connecting components 240 are arranged at intervals around the periphery of the upper guide plate 220. Specifically, the four sets of elastic connecting components 240 are correspondingly arranged at the four corners of the upper guide plate 220. By adopting the above structure, the connection structure between the upper guide plate 220 and the lifting seat 210 is simpler and more compact, which is convenient for production and processing. Moreover, the pressing force applied by the lifting drive device 230 can be transmitted to the four corners of the upper guide plate 220 through the four compression springs 242 of the four sets of elastic connecting components 240. This allows the four sides of the upper guide plate 220 to tightly press the workpiece against the lower guide plate 310, thereby enabling the upper guide plate 220 and the lower guide plate 310 to better cooperate in welding the workpiece, resulting in a better welding effect.

[0029] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4In some embodiments of this utility model, the mounting bracket 130 is provided with a first guide rail 132 arranged in the vertical direction, and a first slider is movably mounted on the first guide rail 132. The lifting seat 210 is connected to the first slider. When the lifting drive device 230 drives the lifting seat 210 to move closer to or away from the welding station 120, the first slider and the first guide rail 132 can cooperate to guide the lifting seat 210 to descend or rise in the vertical direction. By adopting the above structure, the lifting drive device 230 drives the lifting seat 210 to move the upper guide plate 220 downward to approach or upward to move away from the welding station 120 more smoothly and steadily.

[0030] In some embodiments of this utility model, the lifting drive device 230 is a first cylinder fixedly installed on the crossbeam 131, and the piston rod of the first cylinder is connected to the lifting seat 210. By adopting the above structure, the lifting drive device 230 can apply sufficient extrusion force to the upper guide plate 220, and the structure of the high-frequency welding equipment of this application can be simplified, making production and processing easier.

[0031] It should be noted that in the above embodiments, the lifting drive device 230 is set as a cylinder, while in other embodiments of this utility model, the lifting drive device 230 may adopt other structures, such as the lifting drive device 230 being a hydraulic cylinder or an electric push rod, the hydraulic cylinder or electric push rod being fixedly installed on the crossbeam 131, the piston rod of the hydraulic cylinder being connected to the lifting seat 210, or the extended end of the electric push rod being connected to the lifting seat 210.

[0032] In some embodiments of this utility model, two sets of horizontal drive devices are arranged correspondingly at both ends of the frame 100. Specifically, two sets of horizontal drive devices are correspondingly set at both ends of the upper surface of the support platform 110. Each set of horizontal drive devices includes a drive motor 500, a lead screw 510, and a second nut. The drive motor 500 is fixedly installed on the frame 100. In this embodiment, the drive motor 500 is a servo motor. The lead screw 510 is driven by the rotating shaft of the drive motor 500. The lead screw 510 is arranged along the length direction of the support platform 110. The second nut is threadedly connected to the outer periphery of the lead screw 510 and is connected to the corresponding processing table 300. When the drive motor 500 drives the lead screw 510 to rotate forward or backward, the second nut drives the processing table 300 to move along the axial direction of the lead screw 510 closer to or away from the welding station 120. By adopting the above structure, each set of horizontal drive devices can accurately transport the processing table 300 to the welding station 120, or can accurately move the processing table 300 away from the welding station 120 and reset it. Moreover, the structure of the horizontal drive device is simpler, which is convenient for the production and processing of the high-frequency welding equipment in this embodiment.

[0033] It is understood that, in addition to the structure described above, in some embodiments of this utility model, the horizontal drive device may also adopt other structures, such as a cylinder fixedly installed on the support platform 110, with the piston rod of the cylinder being connected to the processing table 300 in a transmission manner.

[0034] In some embodiments of this utility model, a second guide rail 600 is provided on the upper surface of the support platform 110. The second guide rail 600 is arranged along the length direction of the support platform 110, and two second sliders are movably mounted on the second guide rail 600. The two second sliders are connected to the two processing tables 300 one-to-one. By adopting the above structure, the two processing tables 300 can move along the second guide rail 600 to the welding station 120, or the two processing tables 300 can move along the second guide rail 600 away from the welding station 120, thereby making the movement of the two processing tables 300 more stable and less prone to shaking.

[0035] In some embodiments of this utility model, each processing table 300 is provided with a clamping mechanism for clamping workpieces on its upper part, and the clamping mechanism is located on one side of the lower guide plate 310. Specifically, the clamping mechanism includes a second cylinder 700 and a crossbar 710. The second cylinder 700 is fixedly installed on the upper part of the processing table 300, and one end of the crossbar 710 is connected to the piston rod of the second cylinder 700. The second cylinder 700 can drive the crossbar 710 to move downwards closer to the processing table 300, or the second cylinder 700 can drive the crossbar 710 to move upwards away from the processing table 300. When the second cylinder 700 drives the crossbar 710 to move upward away from the processing table 300, the worker can place the workpiece to be welded on the processing table 300. Then, the second cylinder 700 drives the crossbar 710 to move downward toward the processing table 300. The crossbar 710 presses the workpiece to be welded against the processing table 300, thereby preventing the workpiece to be welded from shifting relative to the processing table 300. This facilitates accurate welding of the workpiece in the future and helps to improve the welding quality of the high-frequency welding equipment of this application.

[0036] Although embodiments of this implementation have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this implementation, the scope of which is defined by the claims and their equivalents.

Claims

1. A high-frequency welding device with dual processing tables, characterized in that, include: A frame (100) is provided with a support platform (110) on its upper part. A welding station (120) is provided in the middle of the support platform (110). A mounting bracket (130) is provided in the middle of the rear side of the frame (100). A crossbeam (131) extending above the welding station (120) is provided on the upper part of the mounting bracket (130). The upper pressure plate mechanism (200) includes a lifting seat (210), an upper guide plate (220), and a lifting drive device (230). The lifting drive device (230) is fixedly installed on the crossbeam (131). The lifting seat (210) is connected to the lifting drive device (230) in a transmission manner. The upper guide plate (220) is movably installed below the lifting seat (210). Multiple sets of elastic connection components (240) are provided between the upper guide plate (220) and the lifting seat (210). The multiple sets of elastic connection components (240) are arranged at intervals around the periphery of the upper guide plate (220). Two processing tables (300) are movably installed at both ends of the support platform (110) in a one-to-one correspondence. Each processing table (300) is provided with a lower guide plate (310) on its upper part. Two sets of horizontal drive devices are fixedly installed on the frame (100). The two sets of horizontal drive devices are connected to the two processing tables (300) in a one-to-one transmission. Each set of horizontal drive devices can drive the corresponding processing table (300) to move to the welding station (120) or away from the welding station (120). A high-frequency source (400) is disposed on the frame (100) and electrically connected to the upper guide plate (220) and the two lower guide plates (310); When the horizontal drive device drives the corresponding processing table (300) to move to the welding station (120), the lifting drive device (230) can drive the lifting seat (210) to move the upper guide plate (220) downward to approach or upward to move away from the welding station (120).

2. The high-frequency welding equipment with dual processing tables according to claim 1, characterized in that, Each set of elastic connecting components (240) includes a connecting pin (241) and a compression spring (242). The lifting seat (210) has a pin hole adapted to the connecting pin (241). One end of the connecting pin (241) is connected to the upper part of the upper guide plate (220), and the other end of the connecting pin (241) away from the upper guide plate (220) is movably inserted into the pin hole. The compression spring (242) is sleeved on the outer periphery of the connecting pin (241). One end of the compression spring (242) abuts against the lower surface of the lifting seat (210), and the other end of the compression spring (242) abuts against the upper surface of the upper guide plate (220). The lifting seat (210) and the upper guide plate (220) can move relative to each other in the vertical direction and cooperate to compress the compression spring (242).

3. The high-frequency welding equipment with dual processing tables according to claim 2, characterized in that, The end of the connecting pin (241) away from the upper guide plate (220) is threaded with a first nut (243), and the first nut (243) abuts against the upper surface of the lifting seat (210) away from the upper guide plate (220).

4. A high-frequency welding device with dual processing tables according to claim 1, 2, or 3, characterized in that, The upper guide plate (220) is rectangular in shape. The number of elastic connecting components (240) between the upper guide plate (220) and the lifting seat (210) is four. The four sets of elastic connecting components (240) are arranged at intervals around the periphery of the upper guide plate (220).

5. A high-frequency welding device with dual processing tables according to claim 1, characterized in that, The mounting bracket (130) is provided with a first guide rail (132) arranged in the vertical direction. A first slider is movably mounted on the first guide rail (132). The lifting seat (210) is connected to the first slider. When the lifting drive device (230) drives the lifting seat (210) to move closer to or away from the welding station (120), the first slider and the first guide rail (132) can cooperate to guide the lifting seat (210) to descend or rise in the vertical direction.

6. The high-frequency welding equipment with dual processing tables according to claim 1, characterized in that, The lifting drive device (230) is a first cylinder fixedly installed on the crossbeam (131), and the piston rod of the first cylinder is connected to the lifting seat (210).

7. A high-frequency welding device with dual processing tables according to claim 1, characterized in that, Two sets of horizontal drive devices are arranged correspondingly at both ends of the frame (100). Each set of horizontal drive devices includes a drive motor (500), a lead screw (510), and a second nut. The drive motor (500) is fixedly installed on the frame (100). The lead screw (510) is connected to the rotating shaft of the drive motor (500). The lead screw (510) is arranged along the length of the support platform (110). The second nut is threaded onto the outer periphery of the lead screw (510) and is connected to the corresponding processing table (300). When the drive motor (500) drives the lead screw (510) to rotate in the forward or reverse direction, the second nut drives the processing table (300) to move along the axial direction of the lead screw (510) closer to or away from the welding station (120).

8. A high-frequency welding device with dual processing tables according to claim 1, characterized in that, The upper surface of the support platform (110) is provided with a second guide rail (600). The second guide rail (600) is arranged along the length direction of the support platform (110). The second guide rail (600) is movably mounted with two second sliders. The two second sliders are connected to the two processing tables (300) in a one-to-one correspondence.

9. A high-frequency welding device with dual processing tables according to claim 1, characterized in that, Each of the processing tables (300) is provided with a clamping mechanism for clamping workpieces on its upper part, the clamping mechanism being located on one side of the lower guide plate (310).

10. A high-frequency welding device with dual processing tables according to claim 9, characterized in that, The clamping mechanism includes a second cylinder (700) and a crossbar (710). The second cylinder (700) is fixedly installed on the upper part of the processing table (300). One end of the crossbar (710) is connected to the piston rod of the second cylinder (700). The second cylinder (700) can drive the crossbar (710) to move downward toward the processing table (300), or the second cylinder (700) can drive the crossbar (710) to move upward away from the processing table (300).

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