Double table top cloth chest side frame automatic welding machine

Abstract

The utility model discloses a double mesa cloth drawer cabinet side frame automatic welding machine, including being located on the welding support of feeding frame top surface, is provided with first welding mechanism, second welding mechanism and third welding mechanism along the same linear direction respectively on the welding support, and three welding mechanisms are through first linear guide rail and can be transversely slidably installed on the welding support, and the middle part of feeding frame top surface is provided with upper feeding mechanism and lower feeding mechanism in the upper and lower layer stack, the upper feeding mechanism and lower feeding mechanism of the utility model adopt the upper and lower layer stack structure to replace the carousel type circulating feed structure on the market, and the area is small, and the equipment cost is low, and is suitable for the welding of different size side frame, to realize the purpose that the versatility is strong, welding operation is flexible and welding efficiency is high, and it solves the problem that the welding area is limited, the versatility is poor and the welding efficiency is low because the volume of side frame, rotating table and welding robot is not adapted when adopting welding robot configuration rotating table to weld side frame on the market.

Description

Technical Field

[0001] This utility model relates to the field of welding machines, and in particular to an automatic welding machine for the side frame of a double-counter drawer cabinet. Background Technology

[0002] The side frame of a fabric drawer cabinet is typically a square frame welded together from two long rods and at least two short rods. Before welding, the two long rods and at least two short rods need to be positioned. Currently, welding robots are mainly used to weld the side frames of fabric drawer cabinets. A rotary table is also used to circulate and prepare the side frames to be welded for the welding robot. However, due to the large size of the side frame, the rotary table occupies a large area, while the welding robot is small. This results in a mismatch between the rotary table and the welding robot, making it difficult to weld side frames of different sizes and limiting the welding area. This leads to poor versatility and poor welding results. In addition, the equipment cost is high, which is not conducive to industrial development. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an automatic welding machine for the side frame of a double-counter drawer cabinet.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The automatic welding machine for the side frame of the double-counter drawer cabinet includes a feeding frame, and a welding bracket is installed on the top surface of the feeding frame. The welding bracket is provided with a first welding mechanism, a second welding mechanism and a third welding mechanism respectively along the same straight line direction. The first welding mechanism, the second welding mechanism and the third welding mechanism are slidably mounted on the welding bracket by means of a first linear guide rail. Two first linear guide rails are provided, and the two first linear guide rails are installed parallel to each other on the bottom surface of the welding bracket. In the middle of the top surface of the feeding frame, an upper feeding mechanism and a lower feeding mechanism are stacked on top of each other, automatically switching between the first welding mechanism, the second welding mechanism and the third welding mechanism to weld the side frame after pushing and positioning. These mechanisms consist of two long rods and at least two short rods.

[0005] Preferably, the first welding mechanism includes a welding torch lifting drive, a handle screw, a handle screw mounting bracket, a drive device mounting plate, two first linear guide rods, a guide rod connecting plate, two first positioning clamps, two second positioning clamps, a positioning rod, and two welding components. The drive device mounting plate is slidably mounted on the two first linear guide rails. The welding torch lifting drive is longitudinally mounted on the drive device mounting plate. The handle screw mounting bracket is mounted on the drive device mounting plate and located between the welding torch lifting drive and the first linear guide rails. The handle screw is mounted on the handle screw mounting bracket and is used to lock the drive device mounting plate. The two first linear guide rods are longitudinally mounted on the drive device mounting plate and are located on both sides of the welding torch lifting drive. The guide rod connecting plate is connected to the lower ends of the two first linear guide rods and is mounted on the output end of the welding torch lifting drive. The two first positioning clamps are mounted on the bottom of the guide rod connecting plate. The positioning rod is laterally mounted on the two first positioning clamps. The two second positioning clamps are mounted on both ends of the positioning rod. A welding component is mounted on the bottom of each second positioning clamp.

[0006] Specifically, the welding assembly includes a slide mounting plate, a two-dimensional slide, a welding torch clamp, and a welding torch. The slide mounting plate is installed at the bottom of the second positioning clamp, the two-dimensional slide is installed on the slide mounting plate, the welding torch clamp is installed on the sliding part of the two-dimensional slide, and the welding torch is installed on the welding torch clamp. The structure and working principle of the second welding mechanism and the third welding mechanism are the same as those of the first welding mechanism.

[0007] Preferably, the upper feeding mechanism includes a first carrier plate, a plurality of first clamps, a first carrier plate translation drive assembly and a second carrier plate translation drive assembly. The plurality of first clamps are respectively disposed on the top surface of the first carrier plate. The first carrier plate is mounted on the first carrier plate translation drive assembly and the second carrier plate translation drive assembly. The first carrier plate translation drive assembly and the second carrier plate translation drive assembly jointly push the first carrier plate to move longitudinally.

[0008] Preferably, the lower feeding mechanism includes a second carrier plate, a plurality of second clamps, a guide rod mounting plate, a carrier plate lifting drive assembly, a third carrier plate translation drive assembly, and a fourth carrier plate translation drive assembly. The plurality of second clamps are respectively disposed on the top surface of the second carrier plate. The second carrier plate is mounted on the carrier plate lifting drive assembly, which is mounted on the guide rod mounting plate. The guide rod mounting plate is mounted on the third and fourth carrier plate translation drive assemblies. The third and fourth carrier plate translation drive assemblies together drive the guide rod mounting plate, the carrier plate lifting drive assembly, and the second carrier plate to move laterally. The carrier plate lifting drive assembly drives the second carrier plate to move longitudinally.

[0009] Specifically, the carrier plate lifting drive assembly includes a second linear guide rod and a carrier plate lifting drive device. The second carrier plate is arranged parallel to the guide rod mounting plate and is slidably mounted above the guide rod mounting plate via the second linear guide rod. There are two or more second linear guide rods. The second carrier plate is connected to the output end of the carrier plate lifting drive device.

[0010] Preferably, at least one of the first welding mechanism, the second welding mechanism, and the third welding mechanism is provided.

[0011] Preferably, a controller or control system is provided for signal control of the components such as the first welding mechanism, the second welding mechanism, the third welding mechanism, the upper feeding mechanism, and the lower feeding mechanism. The controller is a PLC programmable logic controller. The PLC programmable logic controller can be a programmable logic controller of model XDS-40T-D, but is not limited thereto.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows:

[0013] 1. It replaces the existing rotary structure with a stacked upper and lower feeding mechanism for cyclic material feeding, resulting in a smaller overall footprint, less space required, and lower equipment production costs. The upper and lower feeding mechanisms work together to automatically cycle and alternate between the first, second, and third welding mechanisms to push the side frames to be welded and to alternately unload the finished side frames that have been welded on the upper and lower feeding mechanisms, thereby improving the loading and unloading efficiency of the side frames and the overall welding efficiency of the side frames.

[0014] 2. It features a welding support with a first welding mechanism, a second welding mechanism, and a third welding mechanism slidably mounted along the same straight line. The structures of the first, second, and third welding mechanisms are designed to allow for adjustable distances between adjacent welding mechanisms and flexible adjustment of the welding angle of the welding torch in each mechanism. This makes it suitable for welding side frames of different sizes and for welding short rods at different positions on long rods. As a result, it achieves high versatility, flexible operation, convenient welding, high welding precision, high welding efficiency, and good welding effect. It effectively solves the problems of limited welding area, poor versatility, low welding efficiency, and poor welding effect caused by the incompatibility between the side frame, the rotating table, and the welding robot in welding side frames currently used in the market. Attached Figure Description

[0015] For ease of explanation, the present invention will be described in detail below with reference to the preferred embodiments and accompanying drawings.

[0016] Figure 1This is a three-dimensional schematic diagram of the automatic welding machine for the side frame of the double-top drawer cabinet of this utility model.

[0017] Figure 2 This is a perspective view of the first welding mechanism, the second welding mechanism, or the third welding mechanism of the automatic welding machine for the side frame of the double-top drawer cabinet of this utility model.

[0018] Figure 3 This is a perspective view of the feeding mechanism of the automatic welding machine for the side frame of the double-table drawer cabinet of this utility model.

[0019] Figure 4 This is a perspective view of the lower feeding mechanism of the automatic welding machine for the side frame of the double-table drawer cabinet of this utility model. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0022] Reference Figure 1 As shown, the automatic welding machine for the side frame of the double-top drawer cabinet of this utility model includes a feeding frame 1. A welding bracket 2 is installed on the top surface of the feeding frame 1. A first welding mechanism 3, a second welding mechanism 4, and a third welding mechanism 5 are respectively arranged on the welding bracket 2 along the same straight line. The first welding mechanism 3, the second welding mechanism 4, and the third welding mechanism 5 are slidably mounted on the welding bracket 2 through a first linear guide rail 6. Two first linear guide rails 6 are provided, and the two first linear guide rails 6 are installed parallel to each other on the bottom surface of the welding bracket 2. An upper feeding mechanism 7 and a lower feeding mechanism 8 are stacked in the middle of the top surface of the feeding frame 1.

[0023] Reference Figure 2As shown, the first welding mechanism 3 includes a welding torch lifting drive device 30, a handle screw 31, a handle screw mounting bracket 32, a drive device mounting plate 33, two first linear guide rods 34, a guide rod connecting plate 35, two first positioning clamps 36, two second positioning clamps 37, a positioning rod 38, and two welding components 39. The drive device mounting plate 33 is slidably mounted on two first linear guide rails 6. The welding torch lifting drive device 30 is longitudinally mounted on the drive device mounting plate 33. The handle screw mounting bracket 32 ​​is mounted on the drive device mounting plate 33 and located between the welding torch lifting drive device 30 and the first linear guide rails 6. A handle screw 31 is mounted on a handle screw mounting bracket 32 ​​and is used to lock the drive device mounting plate 33. Two first linear guide rods 34 are longitudinally mounted on the drive device mounting plate 33, and the two first linear guide rods 34 are respectively located on both sides of the welding torch lifting drive device 30. A guide rod connecting plate 35 is connected and installed to the lower ends of the two first linear guide rods 34. Two first positioning clamps 36 are mounted on the bottom of the guide rod connecting plate 35. A positioning rod 38 is laterally mounted on the two first positioning clamps 36. Two second positioning clamps 37 are mounted on the two ends of the positioning rod 38. A welding assembly 39 is mounted on the bottom of each second positioning clamp 37. In this embodiment, the welding torch lifting drive device 30 is configured as a servo motor.

[0024] Reference Figure 2 As shown, the welding assembly 39 includes a slide mounting plate 391, a two-dimensional slide 392, a welding torch clamp 393, and a welding torch 394. The slide mounting plate 391 is mounted on the bottom of the second positioning clamp 37, the two-dimensional slide 392 is mounted on the slide mounting plate 391, the welding torch clamp 393 is mounted on the sliding part of the two-dimensional slide 392, and the welding torch 394 is mounted on the welding torch clamp 393. The structure and working principle of the second welding mechanism 4 and the third welding mechanism 5 are the same as those of the first welding mechanism 3.

[0025] By adopting the above technical solution, the two-dimensional slide table 392 is used to adjust the positioning position of the welding torch 394. The first welding mechanism 3, the second welding mechanism 4, and the third welding mechanism 5 can slide laterally on the first linear guide rail 6, and each welding mechanism can be locked onto the welding bracket 2 by the handle screw 31, so that the distance between the first welding mechanism 3, the second welding mechanism 4, and the third welding mechanism 5 can be adjusted to adapt to welding the short rod at different positions on the long rod. During welding, the welding torch lifting drive device 30 drives the welding torch 394 to descend to the welding point of the side frame, and the welding torch 394 welds the joint between the long rod and the short rod of the side frame. During welding, the welding torch lifting drive device 30 drives the welding torch 394 to weld the weld seam from high to low. The structural design of the first welding mechanism 3, the second welding mechanism 4, and the third welding mechanism 5 allows for flexible adjustment of the welding angle of the welding torch 394 in each welding mechanism and flexible adjustment of the distance between the first welding mechanism 3, the second welding mechanism 4, and the third welding mechanism 5. It not only has the advantages of flexible operation, convenient welding, high welding efficiency, and good welding effect, but it is also suitable for welding short rods of different sizes and long rods of different sizes, and for welding short rods at different positions on long rods, so as to achieve its purpose of strong versatility.

[0026] Reference Figure 3 As shown, the upper feeding mechanism 7 includes a first carrier plate 71, a plurality of first clamps 72, a first carrier plate translation drive assembly 73, and a second carrier plate translation drive assembly 74. The plurality of first clamps 72 are respectively disposed on the top surface of the first carrier plate 71. The first carrier plate 71 is mounted on the first carrier plate translation drive assembly 73 and the second carrier plate translation drive assembly 74. The first carrier plate translation drive assembly 73 and the second carrier plate translation drive assembly 74 jointly push the first carrier plate 71 to move longitudinally.

[0027] By adopting the above technical solution, the long and short rods of the side frame to be welded are fixed on the first carrier plate 71 by several first clamping devices 72. When the first carrier plate translation drive assembly 73 and the second carrier plate translation drive assembly 74 jointly drive the first carrier plate 71 to translate in the direction of each welding mechanism, the side frame to be welded is fed and conveyed. After the first welding mechanism 3, the second welding mechanism 4, and the third welding mechanism 5 complete the welding of the side frame, the first carrier plate translation drive assembly 73 and the second carrier plate translation drive assembly 74 jointly drive the first carrier plate 71 to translate away from each welding mechanism to unload and convey the finished side frame. The structural design of the upper feeding mechanism 7 not only realizes that the side frame to be welded can be fixed by the first clamping devices 72, giving it the advantages of high fixing efficiency and good fixing effect, but also realizes the automated feeding and conveying of long rods and short rods of different sizes of the side frame to be welded and the unloading and conveying of the finished side frame, with the advantages of high conveying efficiency and stable conveying, to ensure that the welding effect of each welding mechanism on the side frame is good.

[0028] In this embodiment, the first carrier plate translation drive assembly 73 and the second carrier plate translation drive assembly 74 respectively include a second linear guide rail 731 and a first translation drive device 732. The two ends of the first carrier plate 71 are respectively fixedly mounted on the sliding portion (i.e., slider or slide block) of the second linear guide rail 731 in the first carrier plate translation drive assembly 73 and the second carrier plate translation drive assembly 74. The output end of the first translation drive device 732 is connected and mounted to the sliding portion of the second linear guide rail 731 on the same side via a connecting block or connecting plate. The first translation drive device 732 is configured as a cylinder.

[0029] Reference Figure 4 As shown, the lower feeding mechanism 8 includes a second carrier plate 81, a plurality of second clamping devices 82, a carrier plate lifting drive assembly 83, a third carrier plate translation drive assembly 84, a fourth carrier plate translation drive assembly 85, and a guide rod mounting plate 86. The plurality of second clamping devices 82 are respectively disposed on the top surface of the second carrier plate 81. The second carrier plate 81 is mounted on the carrier plate lifting drive assembly 83. The carrier plate lifting drive assembly 83 is mounted on the guide rod mounting plate 86. The guide rod mounting plate 86 is mounted on the third carrier plate translation drive assembly 84 and the fourth carrier plate translation drive assembly 85. The third carrier plate translation drive assembly 84 and the fourth carrier plate translation drive assembly 85 together drive the guide rod mounting plate 86, the carrier plate lifting drive assembly 83, and the second carrier plate 81 to move laterally. The carrier plate lifting drive assembly 83 drives the second carrier plate 81 to move longitudinally.

[0030] Reference Figure 4 As shown, the carrier plate lifting drive assembly 83 includes a second linear guide rod 831 and a carrier plate lifting drive device 832. The second carrier plate 81 is arranged parallel to the guide rod mounting plate 86, and the second carrier plate 81 is slidably mounted above the guide rod mounting plate 86 via the second linear guide rods 831. Two or more second linear guide rods 831 are provided. The second carrier plate 81 is connected and installed to the output end of the carrier plate lifting drive device 832. In this embodiment, four second linear guide rods 831 are provided, but this is not a limitation. In other embodiments, different numbers of second linear guide rods 831 can be provided according to the needs of use.

[0031] By adopting the above technical solution, the principle of the lower feeding mechanism 8 pushing the side frame to be welded is the same as that of the upper feeding mechanism 7. After the lower feeding mechanism 8 pushes the side frame to be welded to the welding station, the carrier plate lifting drive assembly 83 drives the second carrier plate 81 to rise to the same height as the first carrier plate 71 to prepare for the welding of the side frame. This solves the problem that the lower feeding mechanism 8 and the upper feeding mechanism 7 are at different heights, so that each side frame to be welded is at the same horizontal height during welding. The upper feeding mechanism 7 and the lower feeding mechanism 8 work together to alternately carry out the feeding and unloading of the side frame to be welded. The upper feeding mechanism 7 and the lower feeding mechanism 8 adopt a stacked structure design, which makes the whole has the advantages of small footprint, small equipment size and low equipment cost. This solves the problem that the current welding robots with rotary tables are used to weld the side frames. Due to the large size of the side frames and the large area occupied by the rotary table, but the small size of the welding robot, they are not compatible, resulting in low welding efficiency, limited welding area and poor versatility.

[0032] In this embodiment, the third carrier plate translation drive assembly 84 and the fourth carrier plate translation drive assembly 85 respectively include a third linear guide rail 841 and a second translation drive device 842. The two ends of the guide rod mounting plate 86 are respectively mounted on the sliding portion (i.e., slider or slide block) of the third linear guide rail 841 in the third carrier plate translation drive assembly 84 and the fourth carrier plate translation drive assembly 85. The output end of the second translation drive device 842 is connected and mounted to the sliding portion of the third linear guide rail 841 on the same side via a connecting block or connecting plate. Both the carrier plate lifting drive device 832 and the second translation drive device 842 are configured as cylinders.

[0033] Reference Figures 1 to 4As shown, the structural design principle of the automatic welding machine for the side frames of the double-counter drawer cabinet is as follows: the upper feeding mechanism 7 and the lower feeding mechanism 8 adopt an upper and lower stacked structure to replace the rotary table structure for cyclic material feeding. The upper feeding mechanism 7 and the lower feeding mechanism 8 use a linear translational motion to push the side frames to be welded, which are formed by two long rods and at least two short rods after being fixed and positioned, to the first welding mechanism 3, the second welding mechanism 4 and the third welding mechanism 5. The upper feeding mechanism 7 moves forward to feed the first welding mechanism 3, the second welding mechanism 4 and the third welding mechanism 5. After the first welding mechanism 3, the second welding mechanism 4 and the third welding mechanism 5 have finished welding the side frames on the upper feeding mechanism 7, the upper feeding mechanism 7 moves backward to unload the finished side frames. After the finished side frames are removed from the upper feeding mechanism 7, the next side frame to be welded is placed on it to prepare for the next feeding of side frames to be welded by the upper feeding mechanism 7. When the upper feeding mechanism 7 retracts to convey materials, the lower feeding mechanism 8 simultaneously feeds and conveys the side frame to be welded placed on it. After the lower feeding mechanism 8 conveys the side frame to the welding station, the carrier plate lifting drive assembly 83 of the lower feeding mechanism 8 raises the second carrier plate 81 to the same height as the first carrier plate 71. After the first welding mechanism 3, the second welding mechanism 4, and the third welding mechanism 5 complete the welding of the side frame on the lower feeding mechanism 8, the carrier plate lifting drive assembly 83 drives the second carrier plate 81 to descend and reset, and the third carrier plate... The transfer drive assembly 84 and the fourth carrier plate translation drive assembly 85 drive the second carrier plate 81 to retract and reset, thereby conveying the finished side frame after welding and preparing for the subsequent placement of the next side frame to be welded by the lower feeding mechanism 8. The upper feeding mechanism 7 and the lower feeding mechanism 8 work together to automatically and cyclically provide the first welding mechanism 3, the second welding mechanism 4, and the third welding mechanism 5 with side frames to be welded continuously, ensuring the continuity of welding and avoiding the need to waste time waiting for the loading, positioning, and unloading of the side frames to be welded. Its overall structural design not only has the advantages of small space occupation, small area, and low equipment cost, which is conducive to industrial development, but also makes it suitable for welding short rods of different sizes and long rods of different sizes, as well as for welding short rods at different positions on long rods, thereby achieving its goal of strong versatility, improving the flexibility of welding operations, making welding more convenient, more efficient, and better.

[0034] The above embodiments are merely examples of this utility model and are not intended to limit the implementation and scope of this utility model. All technical solutions that are the same as or equivalent to the contents described in the claims of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic welding machine for the side frames of a double-counter drawer cabinet, comprising a feeding frame, wherein a welding bracket is mounted on the top surface of the feeding frame, characterized in that: The welding bracket is provided with a first welding mechanism, a second welding mechanism, and a third welding mechanism respectively along the same straight line direction. The first welding mechanism, the second welding mechanism, and the third welding mechanism are slidably mounted on the welding bracket by means of a first linear guide rail. There are two first linear guide rails, which are installed parallel to each other on the bottom surface of the welding bracket. The upper feeding mechanism and the lower feeding mechanism are stacked in the middle of the top surface of the feeding frame. The upper feeding mechanism automatically alternates with the first welding mechanism, the second welding mechanism, and the third welding mechanism after the welding side frame is pushed and positioned. The lower feeding mechanism consists of two long rods and at least two short rods.

2. The automatic welding machine for the side frame of the double-counter drawer cabinet according to claim 1, characterized in that: The first welding mechanism includes a welding torch lifting drive, a handle screw, a handle screw mounting bracket, a drive device mounting plate, two first linear guide rods, a guide rod connecting plate, two first positioning clamps, two second positioning clamps, a positioning rod, and two welding components. The drive device mounting plate is slidably mounted on the two first linear guide rails. The welding torch lifting drive is longitudinally mounted on the drive device mounting plate. The handle screw mounting bracket is mounted on the drive device mounting plate and located between the welding torch lifting drive and the first linear guide rails. The handle screw is mounted on the handle screw mounting bracket and is used to lock the drive device mounting plate. The two first linear guide rods are longitudinally mounted on the drive device mounting plate and are located on both sides of the welding torch lifting drive. The guide rod connecting plate is connected to the lower ends of the two first linear guide rods. The two first positioning clamps are mounted on the bottom of the guide rod connecting plate. The positioning rod is laterally mounted on the two first positioning clamps. The two second positioning clamps are mounted on the two ends of the positioning rod. A welding component is mounted on the bottom of each second positioning clamp.

3. The automatic welding machine for the side frame of the double-counter drawer cabinet according to claim 2, characterized in that: The welding assembly includes a slide mounting plate, a two-dimensional slide, a welding torch clamp, and a welding torch. The slide mounting plate is installed at the bottom of the second positioning clamp, the two-dimensional slide is installed on the slide mounting plate, the welding torch clamp is installed on the sliding part of the two-dimensional slide, and the welding torch is installed on the welding torch clamp. The structure and working principle of the second welding mechanism and the third welding mechanism are the same as those of the first welding mechanism.

4. The automatic welding machine for the side frame of the double-counter drawer cabinet according to claim 1, characterized in that: The upper feeding mechanism includes a first carrier plate, a plurality of first clamps, a first carrier plate translation drive assembly, and a second carrier plate translation drive assembly. The plurality of first clamps are respectively disposed on the top surface of the first carrier plate. The first carrier plate is mounted on the first carrier plate translation drive assembly and the second carrier plate translation drive assembly. The first carrier plate translation drive assembly and the second carrier plate translation drive assembly jointly push the first carrier plate to move longitudinally.

5. The automatic welding machine for the side frame of the double-counter drawer cabinet according to claim 1, characterized in that: The lower feeding mechanism includes a second carrier plate, several second clamps, a guide rod mounting plate, a carrier plate lifting drive assembly, a third carrier plate translation drive assembly, and a fourth carrier plate translation drive assembly. Several second clamps are respectively disposed on the top surface of the second carrier plate. The second carrier plate is mounted on the carrier plate lifting drive assembly, which is mounted on the guide rod mounting plate. The guide rod mounting plate is mounted on the third and fourth carrier plate translation drive assemblies. The third and fourth carrier plate translation drive assemblies together drive the guide rod mounting plate, the carrier plate lifting drive assembly, and the second carrier plate to move laterally. The carrier plate lifting drive assembly drives the second carrier plate to move longitudinally.

6. The automatic welding machine for the side frame of the double-countertop drawer cabinet according to claim 5, characterized in that: The carrier plate lifting drive assembly includes a second linear guide rod and a carrier plate lifting drive device. The second carrier plate is arranged parallel to the guide rod mounting plate and is slidably mounted above the guide rod mounting plate via the second linear guide rod. There are two or more second linear guide rods. The second carrier plate is connected to the output end of the carrier plate lifting drive device.

7. The automatic welding machine for the side frame of the double-countertop drawer cabinet according to claim 1, characterized in that: The first welding mechanism, the second welding mechanism, and the third welding mechanism are each provided with at least one.

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