Welding device for file cabinet assembly

Abstract

The utility model discloses a welding device for assembling a file cabinet, relates to the technical field of welding, and aims to solve the technical problems of low efficiency and labor consumption when a longer side plate is welded at present, the welding device comprises a mounting mechanism, a positioning mechanism and a welding mechanism, the positioning mechanism and the welding mechanism are arranged on the mounting mechanism, and a cylinder is arranged on a first mounting plate; a fixing plate is arranged at the tail end of a piston rod of the air cylinder, the welding mechanism comprises first lead screws symmetrically and rotationally installed between the installation frames, second installation plates are arranged on the bottom faces of moving blocks of the first lead screws, second lead screws are arranged between the second installation plates, and telescopic rods are arranged on the bottom faces of moving blocks of the second lead screws; and an adjusting rod is arranged on the bottom surface of the second mounting plate. The automatic spot welding device has the advantages that each plate of the file cabinet can be quickly and stably clamped, manual fixation is not needed, the welding gun can automatically move along a joint, automatic spot welding is achieved in cooperation with the adjusting rod, frequent manual position and posture adjustment is not needed, efficiency is improved, and physical strength is saved.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and more specifically, to a welding device for assembling filing cabinets. Background Technology

[0002] Filing cabinets are specialized pieces of furniture used to store important documents, files, vouchers, and other materials. They are widely used in enterprises, public institutions, government agencies, schools, and archives, and their core value lies in achieving orderly storage, secure protection, and convenient access to materials. In terms of materials, the mainstream types include cold-rolled steel filing cabinets and solid wood filing cabinets. Steel filing cabinets possess properties such as moisture resistance, fire resistance, insect resistance, and wear resistance. They have a sturdy structure and strong load-bearing capacity, and their rust resistance is enhanced through electrostatic powder coating, making them the preferred choice for modern office environments.

[0003] When assembling a filing cabinet into its cabinet shape, the side panels and back panel need to be welded together. Welding is mainly done using spot welding. Because the side panels are relatively long, workers need to frequently adjust their standing position and body posture, and constantly apply the welding torch to the welding points, which is not only inefficient but also physically demanding. Therefore, we propose a welding device for assembling filing cabinets. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a welding device for assembling filing cabinets to solve the technical problems of low efficiency and high physical labor consumption when welding long side panels.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a welding device for assembling a filing cabinet, comprising an installation mechanism, a positioning mechanism and a welding mechanism disposed on the installation mechanism, wherein the installation mechanism comprises a base plate and a mounting bracket disposed on the base plate, the positioning mechanism comprises a first mounting plate symmetrically disposed on the base plate and a fixed block slidably disposed on the base plate, a cylinder disposed on the first mounting plate, and a fixed plate disposed at the end of the piston rod of the cylinder, the welding mechanism comprising a first lead screw symmetrically rotatably disposed between the mounting brackets, a second mounting plate disposed on the bottom surface of the moving block of the first lead screw, a second lead screw disposed between the second mounting plates, a telescopic rod disposed on the bottom surface of the moving block of the second lead screw, and an adjusting rod disposed on the bottom surface of the second mounting plate.

[0006] Preferably, the working surface array of the base plate is provided with a limiting groove, a spring is provided in the limiting groove at the tail position, a slider is provided on the bottom surface of the fixing block, the slider is slidably disposed in the limiting groove, and the side end of the fixing block is provided with an inclined surface.

[0007] Preferably, the fixing plate includes a fixing part, a bending part and a pressing part from the middle to both ends. The bending part is bent at a 90-degree angle, and the pressing part is bent at the end of the bending part. The pressing part is inclined and matches the inclined surface of the fixing block.

[0008] Preferably, a first motor is provided on the front side of the mounting bracket, the output shaft of the first motor is connected to the axis of a first lead screw located on the left side, and a sprocket connected to the axis of the first lead screw is rotatably mounted on the back side of the mounting bracket, with a transmission chain provided between the sprockets.

[0009] Preferably, a second motor is provided on the side end of the second mounting plate, the output shaft of the second motor is connected to the axis of the second lead screw, a fourth mounting plate is provided at the end of the telescopic rod, an electric push rod is provided on the bottom surface of the fourth mounting plate, a third motor is provided at the piston rod end of the electric push rod, and a welding torch is provided at the output shaft end of the third motor.

[0010] Preferably, the adjusting rod includes a connecting part, a reversing part, an upper bending part, and a lower bending part from both ends to the middle. Several upper bending parts and lower bending parts are provided. The upper bending part bends upward in an arc shape, and the lower bending part bends downward in an arc shape. The upper bending part and the lower bending part form an S-shape. A positioning ring is rotatably mounted on the back of the fourth mounting plate. The positioning ring is sleeved on the adjusting rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through the design of an adjusting rod structure, uses a second lead screw to drive the welding torch to move along the length of the side plate, eliminating the need for frequent manual adjustments to the standing position and welding torch angle. The adjusting rod on the bottom surface of the second mounting plate is designed with a "connecting part + changing part + S-shaped bending part" structure. When the welding torch moves, the positioning ring of the fourth mounting plate slides along the S-shaped bending part, driving the welding torch to automatically move up and down, achieving high-frequency and uniform spot welding operations with smaller spot welding spacing errors. Compared with the problem of "uneven force and inconsistent spacing" when manually welding with a handheld welding torch, the welding accuracy is higher, solving the problems of low efficiency and high physical labor consumption when welding long side plates.

[0013] 2. This utility model also features a design for a fixing block and a fixing plate structure. The flat fixing part located in the middle of the fixing plate can directly fit against the surface of the top and bottom plates of the filing cabinet for clamping. During the clamping process, the inclination angle of the squeezing part is adapted to the side slope of the fixing block. When the cylinder pushes the fixing plate towards the cabinet, the squeezing part contacts the slope of the fixing block, which can accurately decompose the longitudinal thrust of the cylinder (along the direction of movement of the fixing plate) into a lateral component (the direction that pushes the fixing block towards the side plate). Without additional driving components, the fixing block can be automatically moved towards the side plate. This not only provides high efficiency in positioning the four sides of the filing cabinet but also reduces energy consumption and ensures the stability of the filing cabinet assembly and welding process. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present utility model;

[0015] Figure 2 This is a rear view structural diagram of the utility model;

[0016] Figure 3 This is a partial cross-sectional view of the present invention.

[0017] Figure 4 This is a schematic diagram of a partial welding mechanism of the present invention;

[0018] Figure 5 This is a schematic diagram of the partial positioning mechanism structure of this utility model;

[0019] Figure 6 This is a schematic diagram of one usage state of the present invention;

[0020] Figure 7 This is a schematic diagram of another usage state of this utility model.

[0021] Explanation of the numbers in the diagram: 100, mounting mechanism; 101, base plate; 102, mounting bracket; 103, limiting slide groove; 104, spring; 200, positioning mechanism; 201, first mounting plate; 202, cylinder; 203, fixing plate; 2031, fixing part; 2032, bending part; 2033, pressing part; 204, fixing block; 2041, slider; 300, welding mechanism; 301, first lead screw. 302. First motor; 303. Second mounting plate; 304. Second lead screw; 305. Second motor; 306. Telescopic rod; 307. Adjusting rod; 3071. Connecting part; 3072. Directional part; 3073. Upper bending part; 3074. Lower bending part; 308. Fourth mounting plate; 309. Electric push rod; 310. Positioning ring; 311. Third motor; 312. Welding torch; 313. Sprocket. Detailed Implementation

[0022] like Figures 1 to 7As shown, this utility model relates to a welding device for assembling a filing cabinet, including an installation mechanism 100, a positioning mechanism 200 provided on the installation mechanism 100, and a welding mechanism 300. The installation mechanism 100 includes a base plate 101 and a mounting bracket 102 provided on the base plate 101. The positioning mechanism 200 includes a first mounting plate 201 symmetrically arranged on the base plate 101 and a fixing block 204 slidably installed on the base plate 101. A cylinder 202 is provided on the first mounting plate 201, and a fixing plate 203 is provided at the end of the piston rod of the cylinder 202. The welding mechanism 300 includes a first lead screw 301 symmetrically rotatably installed between the mounting brackets 102. A second mounting plate 303 is provided on the bottom surface of the moving block of the first lead screw 301. A second lead screw 304 is provided between the second mounting plates 303. A telescopic rod 306 is provided on the bottom surface of the moving block of the second lead screw 304. An adjusting rod 307 is provided on the bottom surface of the second mounting plate 303. This utility model uses a cylinder 202 to push a fixing plate 203 to cooperate with a fixing block 204, which quickly and securely clamps each panel of the filing cabinet without the need for manual fixing. Secondly, the welding gun 312 can move automatically along the joint and achieve automatic spot welding with the adjusting rod 307, without the need for frequent manual adjustment of position and posture, thus improving efficiency and saving physical strength.

[0023] Specifically, the working surface array of the base plate 101 has a limiting groove 103. A spring 104 is installed at the tail position within the limiting groove 103. A slider 2041 is installed on the bottom surface of the fixing block 204, and the slider 2041 is slidably positioned within the limiting groove 103. The side end of the fixing block 204 is sloped. The slider 2041 on the bottom surface of the fixing block 204 slides along the limiting groove 103 on the base plate 101. The limiting groove 103 restricts the sliding trajectory of the slider 2041, ensuring that the fixing block 204 always moves in a direction perpendicular to the workpiece, preventing the fixing block 204 from shifting and causing positioning failure. When the fixing block 204 loses the limiting position of the fixing plate 203, the spring 104 can cause the fixing block 204 to move outward, thereby releasing the clamping of the filing cabinet.

[0024] Furthermore, the fixing plate 203 includes a fixing part 2031, a bending part 2032, and a pressing part 2033 sequentially from the middle to both ends. The bending part 2032 is bent at a 90-degree angle, and the pressing part 2033 is bent at the end of the bending part 2032. The pressing part 2033 is inclined and matches the inclined surface of the fixing block 204. When the fixing plate 203 continues to move, the inclined pressing part 2033 at its end will contact the inclined surface of the fixing block 204. Since the pressing part 2033 matches the inclined surface of the fixing block 204, the pressing force of the pressing part 2033 on the inclined surface will be decomposed into a horizontal component force that pushes the fixing block 204 to slide towards the side panel of the cabinet. As the fixing part 2031 contacts the top and bottom panels of the cabinet, the working surface of the fixing block 204 will also clamp the side panel of the cabinet, thus initially forming the cabinet structure of each panel of the filing cabinet.

[0025] It is worth noting that a first motor 302 is provided on the front of the mounting bracket 102. The output shaft of the first motor 302 is connected to the axis of the first lead screw 301 located on the left side. A sprocket 313 connected to the axis of the first lead screw 301 is rotatably mounted on the back of the mounting bracket 102. A transmission chain is provided between the sprockets 313. When the first motor 302 in the welding mechanism 300 is started, the output shaft of the first motor 302 drives the first lead screw 301 on the left side to rotate. The sprocket 313 connected to the axis of the first lead screw 301 on the left side will rotate synchronously. Through the transmission chain between the sprockets 313, the first lead screw 301 on the right side will rotate synchronously and in the same direction as the first lead screw 301 on the left side. The moving block of the first lead screw 301 will drive the second mounting plate 303 on the bottom surface to move along the length direction of the first lead screw 301. This can adjust the position of the welding torch 312 so that the welding torch 312 can be located directly above the welding position of the side plate and the back plate, which is convenient for subsequent welding work.

[0026] It is worth mentioning that a second motor 305 is provided on the side of the second mounting plate 303. The output shaft of the second motor 305 is connected to the shaft of the second lead screw 304. A fourth mounting plate 308 is provided at the end of the telescopic rod 306. An electric push rod 309 is provided on the bottom surface of the fourth mounting plate 308. A third motor 311 is provided at the end of the piston rod of the electric push rod 309. A welding torch 312 is provided at the end of the output shaft of the third motor 311. When the second motor 305 on the side of the second mounting plate 303 is started, the output shaft of the second motor 305 drives the second lead screw 304 to rotate. The moving block of the second lead screw 304 will drive the telescopic rod 306 on the bottom surface to move along the length of the second lead screw 304, so that the welding torch 312 can move along the welded joint. Welding work can be performed with the welding torch 312.

[0027] It is worth noting that the adjusting rod 307 includes a connecting part 3071, a reversing part 3072, an upper bending part 3073, and a lower bending part 3074 from both ends to the middle. There are several upper bending parts 3073 and lower bending parts 3074. The upper bending part 3073 bends upward in an arc shape, and the lower bending part 3074 bends downward in an arc shape. The upper bending part 3073 and the lower bending part 3074 form an S-shape. A positioning ring 310 is rotatably mounted on the back of the fourth mounting plate 308. The positioning ring 310 is sleeved on the adjusting rod 307. The connecting parts 3071 at both ends of the adjusting rod 307 are used to fix and connect with the second mounting plate 303 to ensure the stable installation of the adjusting rod 307. The reversing part 3072 is used to connect the connecting part 3071 and the bending part. During the welding process of the welding torch 312, the positioning ring 310, which is rotatably mounted on the back of the fourth mounting plate 308, will slide along the adjusting rod 307. The upper bending part 3073 and the lower bending part 3074 on the adjusting rod 307 form an S-shaped structure. When the positioning ring 310 slides along the S-shaped trajectory, it will drive the fourth mounting plate 308 to move up and down slightly. During this process, the telescopic rod 306 will follow and extend, thereby causing the welding torch 312 to move up and down during the welding process, realizing a fast spot welding operation. After welding one side plate, the welding torch 312 moves to another side plate and starts the third motor 311. The output shaft of the third motor 311 drives the welding torch 312 to rotate 180 degrees to ensure that the welding torch 312 can weld the joint of the other side plate.

[0028] Working Principle: This embodiment provides a welding device for assembling a filing cabinet. In use, the side panels, top panel, bottom panel, and back panel of the filing cabinet are first placed on the working surface of the base plate 101 according to the cabinet assembly configuration, aligning the joints of each panel. Then, the cylinder 202 in the positioning mechanism 200 is activated. The piston rod of the cylinder 202 pushes the fixing plate 203 towards the workpiece. The fixing part 2031 in the middle of the fixing plate 203 contacts the top and bottom panels of the filing cabinet and applies pressure. Simultaneously, the pressing parts 2033 extending from the bending parts 2032 at both ends of the fixing plate 203 gradually approach... As the piston rod of the cylinder 202 continues to extend, the inclined pressing part 2033 of the fixed block 204 fits against the inclined surface of the fixed block 204. The pressing force of the pressing part 2033 on the inclined surface is decomposed into a horizontal thrust, which pushes the fixed block 204 to slide along the limiting slide groove 103 on the base plate 101 through the slider 2041 on the bottom surface towards the side plate until the fixed part 2031 tightly clamps the top plate and the bottom plate, and the fixed block 204 tightly clamps the side plate, fixing each panel of the filing cabinet into a stable cabinet structure. At this time, the spring 104 in the limiting slide groove 103 is in a compressed state.Next, the welding mechanism 300 is started. First, the first motor 302 is started. The output shaft of the first motor 302 drives the left first lead screw 301 to rotate. The sprocket 313 connected to the shaft of the left first lead screw 301 rotates synchronously. Through the transmission chain, it drives the right first lead screw 301 to rotate synchronously in the same direction. The moving block of the first lead screw 301 drives the second mounting plate 303 to move along the length of the first lead screw 301, adjusting the second mounting plate 303 to be directly above the joint between the side plate and the back plate. Then, the electric push rod 309 is started. 9. The piston rod pushes the third motor 311 and welding torch 312 downwards, bringing the welding end of the welding torch 312 closer to the joint. Then, the second motor 305 is started. The output shaft of the second motor 305 drives the second lead screw 304 to rotate. The moving block of the second lead screw 304 drives the telescopic rod 306 to move along the length of the second lead screw 304. During the movement of the telescopic rod 306 driven by the second lead screw 304, the positioning ring 310 on the back of the fourth mounting plate 308 slides along the adjusting rod 307. The adjusting rod 307 has an upper curved part 3073 and a lower curved part 3073. The S-shaped structure formed by the curved section 3074 causes the positioning ring 310 to move the fourth mounting plate 308 up and down slightly, and the telescopic rod 306 extends and retracts synchronously. This allows the welding torch 312 to perform reciprocating spot welding as it moves along the joint. After the welding of one side plate and the back plate is completed, the first lead screw 301 works again to move the welding torch 312 above the joint of the other side plate. At the same time, the third motor 311 is started. The output shaft of the third motor 311 drives the welding torch 312 to rotate 180°, so that the welding end of the welding torch 312 faces the other side. For the seam, repeat the spot welding process to complete the welding on the other side. After welding, turn off all motors and electric push rods 309, control cylinder 202 piston rod to retract, fixing plate 203 moves towards first mounting plate 201, pressing part 2033 separates from the inclined surface of fixing block 204, spring 104 in compression releases its elastic force, pushing fixing block 204 to slide outward along limiting slide groove 103, releasing the clamping of the side plate. At this time, the welded filing cabinet can be removed from base plate 101, completing one filing cabinet assembly welding operation.

[0029] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A welding device for assembling filing cabinets, characterized in that, The system includes an installation mechanism (100), a positioning mechanism (200) mounted on the installation mechanism (100), and a welding mechanism (300). The installation mechanism (100) includes a base plate (101) and a mounting bracket (102) mounted on the base plate (101). The positioning mechanism (200) includes a first mounting plate (201) symmetrically arranged on the base plate (101) and a fixing block (204) slidably mounted on the base plate (101). A cylinder (202) is mounted on the first mounting plate (201). The piston rod of the cylinder (202) is provided with a fixing plate (203). The welding mechanism (300) includes a first lead screw (301) symmetrically rotated between the mounting brackets (102). The bottom surface of the moving block of the first lead screw (301) is provided with a second mounting plate (303). A second lead screw (304) is provided between the second mounting plates (303). The bottom surface of the moving block of the second lead screw (304) is provided with a telescopic rod (306). The bottom surface of the second mounting plate (303) is provided with an adjusting rod (307).

2. The welding device for assembling a filing cabinet according to claim 1, characterized in that, The working surface array of the base plate (101) is provided with a limiting groove (103). A spring (104) is provided at the tail position in the limiting groove (103). A slider (2041) is provided on the bottom surface of the fixing block (204). The slider (2041) is slidably disposed in the limiting groove (103). The side end of the fixing block (204) is set with an inclined surface.

3. The welding device for assembling a filing cabinet according to claim 2, characterized in that, The fixing plate (203) includes a fixing part (2031), a bending part (2032) and a pressing part (2033) from the middle to both ends. The bending part (2032) is bent at a 90-degree angle. The pressing part (2033) is bent at the end of the bending part (2032). The pressing part (2033) is inclined and matches the inclined surface of the fixing block (204).

4. The welding device for assembling a filing cabinet according to claim 3, characterized in that, The front of the mounting bracket (102) is provided with a first motor (302), the output shaft of the first motor (302) is connected to the axis of the first lead screw (301) located on the left side, and the back of the mounting bracket (102) is rotatably mounted with a sprocket (313) connected to the axis of the first lead screw (301), and a transmission chain is provided between the sprockets (313).

5. The welding device for assembling a filing cabinet according to claim 4, characterized in that, A second motor (305) is provided on the side end of the second mounting plate (303). The output shaft of the second motor (305) is connected to the axis of the second lead screw (304). A fourth mounting plate (308) is provided at the end of the telescopic rod (306). An electric push rod (309) is provided on the bottom surface of the fourth mounting plate (308). A third motor (311) is provided at the end of the piston rod of the electric push rod (309). A welding torch (312) is provided at the end of the output shaft of the third motor (311).

6. The welding device for assembling a filing cabinet according to claim 5, characterized in that, The adjusting rod (307) includes a connecting part (3071), a reversing part (3072), an upper bending part (3073), and a lower bending part (3074) from both ends to the middle. The upper bending part (3073) and the lower bending part (3074) are provided in multiples. The upper bending part (3073) bends upward in an arc shape, and the lower bending part (3074) bends downward in an arc shape. The upper bending part (3073) and the lower bending part (3074) form an S-shape. A positioning ring (310) is rotatably mounted on the back of the fourth mounting plate (308). The positioning ring (310) is sleeved on the adjusting rod (307).

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